From 114f7bbfb91a00aab7c869e8535802b705dce5e4 Mon Sep 17 00:00:00 2001 From: Hilko Bengen Date: Tue, 22 Dec 2020 13:46:40 +0000 Subject: [PATCH 1/1] Import nbdkit_1.22.4.orig.tar.gz [dgit import orig nbdkit_1.22.4.orig.tar.gz] --- .dir-locals.el | 2 + .gitignore | 161 + BENCHMARKING | 187 + LICENSE | 30 + Makefile.am | 136 + Makefile.in | 1182 + OTHER_PLUGINS | 13 + README | 302 + SECURITY | 14 + TODO | 331 + aclocal.m4 | 1488 + bash/Makefile.am | 40 + bash/Makefile.in | 663 + bash/README | 8 + bash/nbdkit | 112 + common-rules.mk | 38 + common/allocators/Makefile.am | 54 + common/allocators/Makefile.in | 826 + common/allocators/allocator-internal.h | 43 + common/allocators/allocator.c | 167 + common/allocators/allocator.h | 153 + common/allocators/malloc.c | 312 + common/allocators/sparse.c | 545 + common/allocators/zstd.c | 656 + common/bitmap/Makefile.am | 56 + common/bitmap/Makefile.in | 1218 + common/bitmap/bitmap.c | 115 + common/bitmap/bitmap.h | 183 + common/bitmap/test-bitmap.c 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((indent-tabs-mode . nil) + (c-basic-offset . 2)))) diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..25c5de2 --- /dev/null +++ b/.gitignore @@ -0,0 +1,161 @@ +*~ +*.bak +*.cmi +*.cmx +*.dll +*.exe +*.la +*.lo +*.log +*.o +*.trs + +.deps +.dirstamp +.gdb_history +.libs +Makefile +Makefile.in + +/local* +/nbdkit-*.tar.gz +/nbdkit-*.*/ + +docs/*.1 +docs/*.3 +filters/*/*.1 +plugins/*/*.1 +plugins/*/*.3 + +.libs/*.so +/tests/*.so + +/aclocal.m4 +/autom4te.cache +/common/bitmap/test-bitmap +/common/include/test-ascii-ctype +/common/include/test-ascii-string +/common/include/test-byte-swapping +/common/include/test-current-dir-name +/common/include/test-isaligned +/common/include/test-ispowerof2 +/common/include/test-iszero +/common/include/test-minmax +/common/include/test-nextnonzero +/common/include/test-random +/common/include/test-tvdiff +/common/protocol/generate-protostrings.sh +/common/protocol/protostrings.c +/common/utils/test-quotes +/common/utils/test-vector +/compile +/config.cache +/config.guess +/config.h +/config.h.in +/config.log +/config.status +/config.sub +/configure +/depcomp +/docs/filter-links.pod +/docs/lang-plugin-links.pod +/docs/plugin-links.pod +/fuzzing/sync_dir/ +/fuzzing/testcase_dir/[0-f]* +/html/*.html +/include/nbdkit-version.h +/INSTALL +/install-sh +/libtool +/ltmain.sh +/missing +/nbdkit +/plugins/example4/nbdkit-example4-plugin +/plugins/eval/call.c +/plugins/eval/methods.c +/plugins/golang/examples/*/nbdkit-*-plugin.h +/plugins/golang/examples/*/nbdkit-*-plugin.so +/plugins/ocaml/nbdkit-ocamlexample-plugin.so +/plugins/ondemand/default-command.c +/plugins/rust/Cargo.lock +/plugins/rust/target +/plugins/tmpdisk/default-command.c +/podwrapper.pl +/server/local/nbdkit.pc +/server/nbdkit +/server/nbdkit.pc +/server/synopsis.c +/server/test-public +/stamp-h1 +/tests/__pycache__/ +/tests/disk +/tests/disk.gz +/tests/disk.tar +/tests/disk.tar.gz +/tests/disk.tar.xz +/tests/disk.xz +/tests/ext2.img +/tests/file-data +/tests/functions.sh +/tests/keys.psk +/tests/partition-disk +/tests/pki +/tests/split1 +/tests/split2 +/tests/split3 +/tests/ssh/authorized_keys +/tests/ssh/id_rsa +/tests/ssh/id_rsa.pub +/tests/ssh/ssh_host_rsa_key +/tests/ssh/ssh_host_rsa_key.pub +/tests/ssh/sshd_config +/tests/stamp-ssh-host-key +/tests/stamp-ssh-user-key +/tests/test-connect +/tests/test-curl +/tests/test-curl-cookie-script +/tests/test-curl-header-script +/tests/test-data +/tests/test-delay +/tests/test-exit-with-parent +/tests/test-ext2 +/tests/test-file-block +/tests/test-golang +/tests/test-gzip +/tests/test-gzip-curl +/tests/test-just-filter-header +/tests/test-just-plugin-header +/tests/test-layers +/tests/test-lua +/tests/test-memory +/tests/test-memory-allocator-malloc +/tests/test-memory-allocator-zstd +/tests/test-newstyle +/tests/test-nbd +/tests/test-null +/tests/test-ocaml +/tests/test-offset +/tests/test-oldstyle +/tests/test-old-plugins-*.sh +/tests/test-partition +/tests/test-pause +/tests/test-perl +/tests/test-python +/tests/test-random +/tests/test-readahead +/tests/test-ruby +/tests/test-shell +/tests/test-shell.img +/tests/test-socket-activation +/tests/test-split +/tests/test-streaming +/tests/test-tar-gzip-curl +/tests/test-tar-xz-curl +/tests/test-tcl +/tests/test-tmpdisk +/tests/test-vddk +/tests/test-xz +/tests/test-xz-curl +/test-driver +/valgrind/suppressions diff --git a/BENCHMARKING b/BENCHMARKING new file mode 100644 index 0000000..24e9e3c --- /dev/null +++ b/BENCHMARKING @@ -0,0 +1,187 @@ +A GUIDE TO BENCHMARKING NBDKIT + + +General comments +================ + +* The plugin matters! Different plugins have completely different + uses, implementations and threading models. There is little point + in talking generically about “the performance of nbdkit” without + mentioning what plugin you are testing. + +* The client matters! Does the client support multi-conn? Does the + client use the oldstyle or newstyle protocol? Has the client been + written with performance in mind? The currently best clients are + (a) the Linux kernel (nbd.ko), (b) qemu, and (c) fio. Make sure you + are using recent versions and have multi-conn enabled. + +* Filters impair performance! When benchmarking you should never use + filters unless filters are what you are trying to benchmark. + + +Testing using fio +================= + +FIO is a Flexible I/O tester written by Jens Axboe, and it is the +primary tool used for generating the load to test filesystems and +block devices. + +(1) Install libnbd. + +(2) Clone and compile fio: + + https://github.com/axboe/fio + +using: + + ./configure --enable-libnbd + +(3) Edit the test file in examples/nbd.fio, if required. + +(4) Run nbdkit and fio together. From the fio source directory: + + rm -f /tmp/socket + nbdkit -f -U /tmp/socket null 1G --run './fio examples/nbd.fio' + +If you want to use nbdkit from the source directory too, change +‘nbdkit’ to the path of the wrapper, eg: + + rm -f /tmp/socket + ../nbdkit/nbdkit -f -U /tmp/socket null 1G --run './fio examples/nbd.fio' + + +Variations +---------- + +* Try adjusting the number of fio jobs (threads). + +* Try adjusting the number of nbdkit threads (nbdkit -t option). + +* Use other plugins. Both nbdkit-memory-plugin and nbdkit-file-plugin + are important ones to test. + +* Run nbdkit under perf: + + perf record -a -g --call-graph=dwarf -- \ + server/nbdkit -f -U /tmp/socket \ + ./plugins/null/.libs/nbdkit-null-plugin.so 1G + + +Testing using the Linux kernel client +===================================== + +Step (1) is the same as above - obtain or compile fio. + +(2) Create the fio configuation file. + +Create /var/tmp/test.fio containing: + +---------------------------------------------------------------------- +[test] +rw=randrw +size=64m +directory=/var/tmp/nbd +ioengine=libaio +iodepth=4 +direct=1 +numjobs=8 +group_reporting +time_based +runtime=120 +---------------------------------------------------------------------- + +(3) Run nbdkit. + +From the nbdkit source directory: + +rm -f /tmp/socket +./nbdkit -f -U /tmp/socket memory 1G + +(4) Loop mount the NBD server: + +modprobe nbd +nbd-client -C 8 -b 512 -unix /tmp/socket /dev/nbd0 +mkfs.xfs -f /dev/nbd0 +mkdir /var/tmp/nbd +mount /dev/nbd0 /var/tmp/nbd + +(5) Run the fio test: + +fio /var/tmp/test.fio + + +Testing using qemu +================== + +Qemu contains an NBD client with excellent performance. However it's +not very useful for general benchmarking. But two tests you can +perform are described below. + + +Test linear copying performance +------------------------------- + +In some situations, linear copying is important, particularly when +copying large disk images or virtual machines around. Both nbdkit and +the qemu client support sparseness detection and efficient zeroing. + +To test copying speed you can use ‘qemu-img convert’, to or from +nbdkit: + + nbdkit -U - memory 1G --run 'qemu-img convert file.qcow2 -O raw $nbd' + + nbdkit -U - memory 1G --run 'qemu-img convert $nbd -O qcow2 file.qcow2' + +Notes: + + * In the second case, because the memory plugin is entirely sparse + and zero, the convert command should do almost no work. A more + realistic test might use the file, data or pattern plugins. + + * Try copying to and from remote sources like nbdkit-curl-plugin and + nbdkit-ssh-plugin. + + * nbdkit-readahead-filter can optimize copying when reading from + nbdkit. This filter can particularly affect performance when the + nbdkit plugin source is remote (eg. nbdkit-curl-plugin). + + * qemu-img has options for optimizing number of threads and whether + out of order writes are permitted. + +Test end-to-end VM block device performance +------------------------------------------- + +Set up a virtual machine using an NBD block device, connected to +nbdkit. On the qemu command line you would use: + + qemu ... -drive file=nbd:unix:/tmp/sock,if=virtio,format=raw ... + +In libvirt you would use: + + + + + + + + + + + +Set up nbdkit to serve on the Unix domain socket: + + nbdkit -U /tmp/sock memory 1G + +Inside the guest you will see a block device like /dev/vdX which is +backed by the nbdkit instance, and you can use fio or other filesystem +testing tools to evaluate performance. + +This is very much a real world, end-to-end test which tests many +different things together, including the client, guest kernel, qemu, +virtio transport, host kernel and nbdkit. So it's more useful as a +way to detect that there is a problem, rather than as a way to +identify which component is at fault. + +If you have sufficiently recent kernel and qemu you can try using +virtio-vsock as the transport (instead of a Unix domain socket), see +AF_VSOCK in nbdkit-service(1). diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..2582495 --- /dev/null +++ b/LICENSE @@ -0,0 +1,30 @@ +nbdkit +Copyright (C) 2013-2020 Red Hat Inc. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + +* Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + +* Redistributions in binary form must reproduce the above copyright +notice, this list of conditions and the following disclaimer in the +documentation and/or other materials provided with the distribution. + +* Neither the name of Red Hat nor the names of its contributors may be +used to endorse or promote products derived from this software without +specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +SUCH DAMAGE. diff --git a/Makefile.am b/Makefile.am new file mode 100644 index 0000000..0ca53d6 --- /dev/null +++ b/Makefile.am @@ -0,0 +1,136 @@ +# nbdkit +# Copyright (C) 2013-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +ACLOCAL_AMFLAGS = -I m4 + +EXTRA_DIST = \ + BENCHMARKING \ + .dir-locals.el \ + .gitignore \ + html/pod.css \ + LICENSE \ + m4/.gitignore \ + OTHER_PLUGINS \ + scripts/git.orderfile \ + SECURITY \ + $(NULL) + +CLEANFILES += html/*.html + +if !ENABLE_LIBFUZZER +# NB: This is not the real nbdkit binary. It's a wrapper that allows +# you to run nbdkit from the build directory before it is installed. +noinst_PROGRAMS = nbdkit +nbdkit_SOURCES = wrapper.c server/options.h +nbdkit_CPPFLAGS = \ + -I$(top_srcdir)/server \ + -I$(top_srcdir)/common/utils \ + -Dbuilddir=\"$(abs_top_builddir)\" \ + -Dsrcdir=\"$(abs_top_srcdir)\" \ + -DVALGRIND=\"$(VALGRIND)\" \ + $(NULL) +nbdkit_CFLAGS = $(WARNINGS_CFLAGS) +nbdkit_LDADD = \ + $(top_builddir)/common/utils/libutils.la \ + $(NULL) +EXTRA_nbdkit_DEPENDENCIES = config.status +endif !ENABLE_LIBFUZZER + +SUBDIRS = \ + bash \ + docs \ + fuzzing \ + valgrind \ + include \ + common/include \ + common/protocol \ + common/utils \ + server \ + $(NULL) + +if HAVE_PLUGINS +SUBDIRS += \ + common/allocators \ + common/bitmap \ + common/gpt \ + common/regions \ + plugins \ + filters \ + $(NULL) +endif + +SUBDIRS += . tests + +check-valgrind: + $(MAKE) -C tests check-valgrind + +check-root: + $(MAKE) -C tests check-root + +check-vddk: + $(MAKE) -C tests check-vddk + +#---------------------------------------------------------------------- +# Maintainers only! + +# Check no files are missing from EXTRA_DIST rules, and that all +# generated files have been included in the tarball. (Note you must +# have done 'make dist') +maintainer-check-extra-dist: + @zcat $(PACKAGE_NAME)-$(VERSION).tar.gz | tar tf - | sort | \ + sed 's,^$(PACKAGE_NAME)-$(VERSION)/,,' > tarfiles + @git ls-files | \ + sort > gitfiles + @comm -13 tarfiles gitfiles > comm-out + @echo Checking for differences between EXTRA_DIST and git ... + @cat comm-out + @[ ! -s comm-out ] + @rm tarfiles gitfiles comm-out + @echo PASS: EXTRA_DIST tests + +# Commit everything in the current directory and set the commit +# message to the current version number. +maintainer-commit: + git commit -a -m "Version $(VERSION)." + +# Tag HEAD with the current version. +maintainer-tag: + git tag -a v$(VERSION) -m "Version $(VERSION)." -f + +# Run tests and display the time taken to run each test, which is +# useful for diagnosing slow-running tests. +# +# Try also setting LIBGUESTFS_BACKEND_SETTINGS=force_tcg which +# emulates what happens in Koji. +maintainer-check-times: + make check -j1 | ts -i diff --git a/Makefile.in b/Makefile.in new file mode 100644 index 0000000..d3b8bb7 --- /dev/null +++ b/Makefile.in @@ -0,0 +1,1182 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2013-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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(Note you must +# have done 'make dist') +maintainer-check-extra-dist: + @zcat $(PACKAGE_NAME)-$(VERSION).tar.gz | tar tf - | sort | \ + sed 's,^$(PACKAGE_NAME)-$(VERSION)/,,' > tarfiles + @git ls-files | \ + sort > gitfiles + @comm -13 tarfiles gitfiles > comm-out + @echo Checking for differences between EXTRA_DIST and git ... + @cat comm-out + @[ ! -s comm-out ] + @rm tarfiles gitfiles comm-out + @echo PASS: EXTRA_DIST tests + +# Commit everything in the current directory and set the commit +# message to the current version number. +maintainer-commit: + git commit -a -m "Version $(VERSION)." + +# Tag HEAD with the current version. +maintainer-tag: + git tag -a v$(VERSION) -m "Version $(VERSION)." -f + +# Run tests and display the time taken to run each test, which is +# useful for diagnosing slow-running tests. +# +# Try also setting LIBGUESTFS_BACKEND_SETTINGS=force_tcg which +# emulates what happens in Koji. +maintainer-check-times: + make check -j1 | ts -i + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/OTHER_PLUGINS b/OTHER_PLUGINS new file mode 100644 index 0000000..b8dc68b --- /dev/null +++ b/OTHER_PLUGINS @@ -0,0 +1,13 @@ +Have you written an nbdkit plugin that you're willing to share? +Email to get it added to this list. + +* XVA (XenServer Virtual Appliance) + +This simple plugin written in Perl lets you read these files and +reexport them as NBD. It does not require that the XVA is unpacked: +https://lists.gnu.org/archive/html/qemu-devel/2017-11/msg02971.html +https://lists.gnu.org/archive/html/qemu-devel/2017-11/plHKJ062x5Uo.pl + +The whole thread is worth reading because several different approaches +to dealing with XVA files are presented: +https://lists.gnu.org/archive/html/qemu-devel/2017-11/threads.html#02839 diff --git a/README b/README new file mode 100644 index 0000000..0e29514 --- /dev/null +++ b/README @@ -0,0 +1,302 @@ +NBD — Network Block Device — is a protocol for accessing Block Devices +(hard disks and disk-like things) over a Network. + +nbdkit is a toolkit for creating NBD servers. + +The key features are: + + * Multithreaded NBD server written in C with good performance. + + * Minimal dependencies for the basic server. + + * Liberal license (BSD) allows nbdkit to be linked to proprietary + libraries or included in proprietary code. + + * Well-documented, simple plugin API with a stable ABI guarantee. + Lets you export “unconventional” block devices easily. + + * You can write plugins in C, Go, Lua, Perl, Python, OCaml, Ruby, + Rust, shell script or Tcl. + + * Filters can be stacked in front of plugins to transform the output. + +For documentation, see the ‘docs/’ directory. + +For plugins, examples and filters, see the ‘plugins/’ and ‘filters/’ +directories. + +LICENSE +======= + +This software is copyright (C) Red Hat Inc. and licensed under a BSD +license. See ‘LICENSE’ for details. + +BUILDING FROM SOURCE +==================== + +Requirements +------------ + +To build the basic server and some plugins nbdkit needs nothing except +Linux, FreeBSD, OpenBSD or Haiku and: + + - GCC or Clang + + - bash + + - GNU make + +Although it is possible to build without it, it’s recommended to +enable TLS (authentication and encryption) support for which you will +need: + + - gnutls >= 3.3.0 + +Optional dependencies +--------------------- + +To build the man pages, you will optionally need to install: + + - Perl + + - Pod::Man and Pod::Simple (Perl libraries) + +For SELinux socket labelling support: + + - libselinux + +For the gzip plugin: + + - zlib + +For the xz filter: + + - liblzma + +For the memory plugin with allocator=zstd: + + - zstd + +For the curl (HTTP/FTP) plugin: + + - libcurl + +For the ssh plugin: + + - libssh >= 0.8.0 + (this is a different library from libssh2 - that will not work) + +For the iso plugin: + + - genisoimage or mkisofs + +For the floppy plugin: + + - iconv (on Linux this is built into glibc, on other systems + it may be a separate library) + +For the libvirt plugin: + + - libvirt + +For the libguestfs plugin, and to run parts of the test suite: + + - libguestfs + + - guestfish (from libguestfs) + +For the ext2 filter: + + - ext2fs + + - com_err + +For the linuxdisk plugin: + + - mke2fs >= 1.42.10 (from e2fsprogs) + +For the nbd plugin, to get URI and TLS support, and also to run parts +of the test suite: + + - libnbd >= 0.9.8 + +For the bittorrent plugin: + + - libtorrent-rasterbar (https://www.libtorrent.org) + +For the containerized data importer (CDI) plugin: + + - podman + + - jq + +For the Perl and example4 plugins: + + - perl interpreter + + - perl development libraries + + - perl modules ExtUtils::Embed + +For the Python plugin: + + - python interpreter (version 3 only) + + - python development libraries + + - python unittest to run the test suite + +For the OCaml plugin: + + - OCaml >= 4.02.2 + +For the Tcl plugin: + + - Tcl development library and headers + +For the Lua plugin: + + - Lua development library and headers + +For the Rust plugin: + + - cargo (other dependencies will be downloaded at build time) + +To be able to write plugins in golang: + + - go >= 1.5 + +For bash tab completion: + + - bash-completion >= 1.99 + +To test for memory leaks (‘make check-valgrind’): + + - valgrind program and development headers + +For non-essential enhancements to the test suite: + + - expect + + - hexdump + + - ip, ss (from iproute package) + + - jq + + - losetup (from util-linux package) + + - mke2fs (from e2fsprogs) + + - nbdcopy, nbdsh (from libnbd) + + - qemu-img, qemu-io, qemu-nbd (usually shipped with qemu) + + - sfdisk (from util-linux) + + - socat + + - ssh-keygen + + - stat (from coreutils) + +Building +-------- + + To build from tarball: To build from git: + ---------------------- ------------------ + autoreconf -i + ./configure ./configure + make make + make check make check + +To run nbdkit from the source directory, use the top level ./nbdkit +wrapper. It will run nbdkit and plugins from the locally compiled +directory: + + $ ./nbdkit example1 -f -v + ./server/nbdkit ./plugins/example1/.libs/nbdkit-example1-plugin.so -f -v + [etc] + +Optionally run this command as root to install everything: + + make install + +Python +------ + +Since nbdkit >= 1.16, only Python >= 3.6 is supported. + +By default nbdkit uses the Python version of the Python interpreter +called “python” on the current $PATH. If you have parallel versions +of Python installed then you can choose a different version by setting +the PYTHON variable when configuring. For example: + + ./configure PYTHON=/usr/bin/python3.8 + +Running the tests +----------------- + +To run the test suite: + + make check + +If there is a failure, look at the corresponding ‘tests/*.log’ file +for debug information. + +A few tests require root privileges, and are skipped by default. To +run them you must do: + + sudo make check-root + +If you have the proprietary VDDK library, you can test +nbdkit-vddk-plugin against the library like this: + + make check-vddk vddkdir=vmware-vix-disklib-distrib + +DOWNLOAD TARBALLS +================= + +Tarballs are available from: +http://libguestfs.org/download/nbdkit + +DEVELOPERS +========== + +Install the valgrind program and development headers. + +Use: + + ./configure --enable-gcc-warnings --enable-valgrind + +When testing use: + + make check + make check-valgrind + +For development ideas, see the TODO file. + +The upstream git repository is: +https://github.com/libguestfs/nbdkit + +Please send patches to the libguestfs mailing list: +https://www.redhat.com/mailman/listinfo/libguestfs + +For further information, see: +http://libguestfs.org/ +https://github.com/NetworkBlockDevice/nbd/blob/master/doc/proto.md + +Test coverage +------------- + + ./configure CFLAGS="--coverage -g" LDFLAGS="--coverage -g" + make clean + make + make check + + lcov -c -d . -o gcov.info + genhtml -o coverage gcov.info + +Open your browser and examine the coverage/ directory. At the time of +writing (2020-04) test coverage of the server is reasonable, but +things are much worse for certain plugins and filters. diff --git a/SECURITY b/SECURITY new file mode 100644 index 0000000..5a027ce --- /dev/null +++ b/SECURITY @@ -0,0 +1,14 @@ +If you think you've found a serious or potential security bug that you +don't want to report on a public mailing list, then send email to both + and . + +Make it clear in the email Subject line that it's a serious or +security-related bug in nbdkit. + +You can also sign and/or encrypt messages using our GPG public keys +available on the usual keyservers. + +For information about past security issues, see +docs/nbdkit-security.pod, or the nbdkit-security(1) man page if you +have installed nbdkit, also available online here: +http://libguestfs.org/nbdkit-security.1.html diff --git a/TODO b/TODO new file mode 100644 index 0000000..829de7b --- /dev/null +++ b/TODO @@ -0,0 +1,331 @@ +To-do list for nbdkit +====================================================================== + +General ideas for improvements +------------------------------ + +* Listen on specific interfaces or protocols. + +* Performance - measure and improve it. Chart it over various buffer + sizes and threads, as that should make it easier to identify + systematic issues. + +* For parallel plugins, only create threads on demand from parallel + client requests, rather than pre-creating all threads at connection + time, up to the thread pool size limit. Of course, once created, a + thread is reused as possible until the connection closes. + +* A new threading model, SERIALIZE_RETIREMENT, which lets the client + queue up multiple requests and processes them in parallel in the + plugin, but where the responses sent back to the client are in the + same order as the client's request rather than the plugin's + completion. This is stricter than fully parallel, but looser than + SERIALIZE_REQUESTS (in particular, a client can get + non-deterministic behavior if batched requests touch the same area + of the export). + +* Async callbacks. The current parallel support requires one thread + per pending message; a solution with fewer threads would split + low-level code between request and response, where the callback has + to inform nbdkit when the response is ready: + https://www.redhat.com/archives/libguestfs/2018-January/msg00149.html + +* More NBD protocol features. The currently missing features are + structured replies for sparse reads, block size constraints, and + online resize. + +* Add a callback to let plugins request minimum alignment for the + buffer to pread/pwrite; useful for a plugin utilizing O_DIRECT or + other situation where pre-aligned buffers are more efficient. + Ideally, a blocksize filter would honor strict alignment below and + advertise loose alignment above; all other filters (particularly + ones like offset) can fail to initialize if they can't guarantee + strict alignment and don't want to deal with bounce buffers. + +* Test that zero-length read/write/extents requests behave sanely + (NBD protocol says they are unspecified). + +* If a client negotiates structured replies, and issues a read/extents + call that exceeds EOF (qemu 3.1 is one such client, when nbdkit + serves non-sector-aligned images), return the valid answer for the + subset of the request in range and then NBD_REPLY_TYPE_ERROR_OFFSET + for the tail, rather than erroring the entire request. + +* Test and document how to run nbdkit from inetd and xinetd in + nbdkit-service(1). + +* Audit the code base to get rid of strerror() usage (the function is + not thread-safe); however, using geterror_r() can be tricky as it + has a different signature in glibc than in POSIX. + +* Teach nbdkit_error() to have smart newline appending (for existing + inconsistent clients), while fixing internal uses to omit the + newline. Commit ef4f72ef has some ideas on smart newlines, but that + should probably be factored into a utility function. + +* Add a mode of operation where nbdkit is handed a pre-opened fd to be + used immediately in transmission phase (skipping handshake). There + are already third-party clients of the kernel's /dev/nbdX which rely + on their own protocol instead of NBD handshake, before calling + ioctl(NBD_SET_SOCK); this mode would let the third-party client + continue to keep their non-standard handshake while utilizing nbdkit + to prototype new behaviors in serving the kernel. + +* The current signature of .list_exports is awkward; it overloads the + list response to NBD_OPT_LIST with the resolution of the default + export name in .open, and it is missing a tls parameter. It is + probably worth splitting out a new .default_export callback for the + latter purpose, as well as fixing the signature for the former. + +* At present, we ignore NBD_INFO_DESCRIPTION requests from a client + during NBD_OPT_GO. This may be easiest if we add a new + .get_description callback, called after .open alongside .get_size + and .can_write. + +* Background thread for filters. Some filters (readahead, cache and + proposed scan filter - see below) could be more effective if they + were able to defer work to a background thread. However it's not as + simple as just creating a background thread, because you only have + access to the connection / next_ops from the context of a filter + callback. (Also you can't "save" next_ops because it becomes + invalid outside the callback). The background thread would need to + have its own connection to the plugin, which would be independent of + any client connection, and this requires some care because it breaks + an existing assumption. + +* Add scan filter. This would be placed on top of cache filters and + would scan (read) the whole disk in the background, ensuring it is + copied into the cache. Useful if you have a slow plugin, limited + size device, and lots of local disk space, especially if you know + that the NBD clients will eventually read all of the device. RWMJ + wrote an implementation of this but it doesn't work well without a + background thread. + +* "nbdkit.so": nbdkit as a loadable shared library. The aim of nbdkit + is to make it reusable from other programs (see nbdkit-captive(1)). + If it was a loadable shared library it would be even more reusable. + API would allow you to create an nbdkit instance, configure it (same + as the current command line), start it serving on a socket, etc. + However perhaps the current ability to work well as a subprocess is + good enough? Also allowing multiple instances of nbdkit to be + loaded in the same process is probably impossible. + +* Examine other fuzzers: https://gitlab.com/akihe/radamsa + +* common/utils/vector.h could be extended and used in other places: + - there are some more possible places in the server (anywhere using + realloc is suspect) + - add more iterators, map function, etc, as required. + +* password=- to mean read a password interactively from /dev/tty (not + stdin). + +Suggestions for plugins +----------------------- + +Note: qemu supports other formats such as libnfs, iscsi, gluster and +ceph/rbd, and while similar plugins could be written for nbdkit there +is no compelling reason unless the result is better than qemu-nbd. +For the majority of users it would be better if they were directed to +qemu-nbd for these use cases. + +* XVA files + + https://lists.gnu.org/archive/html/qemu-devel/2017-11/msg02971.html + is a partial solution but it needs cleaning up. + +nbdkit-floppy-plugin: + +* Add boot sector support. In theory this is easy (eg. using + SYSLINUX), but the practical reality of making a fully bootable + floppy is rather more complex. + +* Add multiple dir merging. + +nbdkit-linuxdisk-plugin: + +* Add multiple dir merging (in e2fsprogs mke2fs). + +VDDK: + +* Map export name to file parameter, allowing clients to access + multiple disks from a single VM. + +nbdkit-torrent-plugin: + +* There are lots of settings we could map into parameters: + https://www.libtorrent.org/reference-Settings.html#settings_pack + +* The C++ could be a lot more natural. At the moment it's a kind of + “C with C++ extensions”. + +nbdkit-ondemand-plugin: + +* Implement more callbacks, eg. .zero + +* Allow client to select size up to a limit, eg. by sending export + names like ‘export:4G’. + +Suggestions for language plugins +-------------------------------- + +Python: + +* Get the __docstring__ from the module and print it in --help output. + This requires changes to the core API so that config_help is a + function rather than a variable (see V3 suggestions below). + +Suggestions for filters +----------------------- + +* LUKS encrypt/decrypt filter, bonus points if compatible with qemu + LUKS-encrypted disk images + +* CBT filter to track dirty blocks. See these links for inspiration: + https://www.cloudandheat.com/block-level-data-tracking-using-davice-mappers-dm-era/ + https://github.com/qemu/qemu/blob/master/docs/interop/bitmaps.rst + +* masking plugin features for testing clients (see 'nozero' and 'fua' + filters for examples) + +* nbdkit-cache-filter should handle ENOSPC errors automatically by + reclaiming blocks from the cache + +* zstd filter was requested as a way to do what we currently do with + xz but saving many hours on compression (at the cost of hundreds of + MBs of extra data) + https://github.com/facebook/zstd/issues/395#issuecomment-535875379 + +* nbdkit-exitlast-filter could probably use a configurable timeout so + that there is a grace period in case another connection comes along. + +* nbdkit-pause-filter would probably be more useful if the filter + could inject a flush after pausing. However this requires that + filter background threads have access to the plugin (see above). + +* nbdkit-swab-filter should be able to swap 32 and 64 bits. + +nbdkit-rate-filter: + +* allow other kinds of traffic shaping such as VBR + +* limit traffic per client (ie. per IP address) + +* split large requests to avoid long, lumpy sleeps when request size + is much larger than rate limit + +nbdkit-retry-filter: + +* allow user to specify which errors cause a retry and which ones are + passed through; for example there's probably no point retrying on + ENOMEM + +* implement a softer mode (retry-reopen=no) where we don't reopen the + plugin, we just retry the data command that failed + +* there are all kinds of extra complications possible here, + eg. specifying a pattern of retrying and reopening: + retry-method=RRRORRRRRORRRRR meaning to retry the data command 3 + times, reopen, retry 5 times, etc. + +* subsecond times + +nbdkit-ip-filter: + +* permit hostnames and hostname wildcards to be used in the + allow and deny lists + +* the allow and deny lists should be updatable while nbdkit is + running, for example by storing them in a database file + +nbdkit-extentlist-filter: + +* read the extents generated by qemu-img map, allowing extents to be + ported from a qemu block device + +* make non-read-only access safe by updating the extent list when the + filter sees writes and trims + +nbdkit-tls-fallback-filter: + +* Adjust handling of .list_exports to mask what the plugin advertises + when tls is not yet active. + +Filters for security +-------------------- + +Things like filtering by IP address can be done using external +wrappers (TCP wrappers, systemd), or nbdkit-ip-filter. + +However it might be nice to have a configurable filter for preventing +valid but not sensible requests. The server already filters invalid +requests. This would be like seccomp, and could be implemented using +an eBPF-based parser. Unfortunately actual eBPF is difficult to use +for userspace processes. The "standard" isn't solidly defined - the +Linux kernel implementation is the standard - and Linux has by far the +best implementation, particularly around bytecode verification and +JITting. There is a userspace VM (ubpf) but it has very limited +capabilities compared to Linux. + +Composing nbdkit +---------------- + +Filters allow certain types of composition, but others would not be +possible, for example RAIDing over multiple nbd sources. Because the +plugin API limits us to loading a single plugin to the server, the +best way to do this (and the most robust) is to compose multiple +nbdkit processes. Perhaps libnbd will prove useful for this purpose. + +Build-related +------------- + +* Figure out how to get 'make distcheck' working. VPATH builds are + working, but various pkg-config results that try to stick + bash-completion and ocaml add-ons into their system-wide home do + not play nicely with --prefix builds for a non-root user. + +* Port to Windows. + +* Right now, 'make check' builds keys with an expiration of 1 year + only if they don't exist, and we leave the keys around except under + 'make distclean'. This leads to testsuite failures when + (re-)building in an incremental tree first started more than a year + ago. Better would be having make unconditionally run the generator + scripts, but tweak the scripts themselves to be a no-op unless the + keys don't exist or have expired. + +V3 plugin protocol +------------------ + +From time to time we may update the plugin protocol. This section +collects ideas for things which might be fixed in the next version of +the protocol. + +Note that we keep the old protocol(s) around so that source +compatibility is retained. Plugins must opt in to the new protocol +using ‘#define NBDKIT_API_VERSION ’. + +* All methods taking a ‘count’ field should be uint64_t (instead of + uint32_t). Although the NBD protocol does not support 64 bit + lengths, it might do in future. + +* pread could be changed to allow it to support Structured Replies + (SRs). This could mean allowing it to return partial data, holes, + zeroes, etc. For a client that negotiates SR coupled with a plugin + that supports .extents, the v2 protocol would allow us to at least + synthesize NBD_REPLY_TYPE_OFFSET_HOLE for less network traffic, even + though the plugin will still have to fully populate the .pread + buffer; the v3 protocol should make sparse reads more direct. + +* Parameters should be systematized so that they aren't just (key, + value) strings. nbdkit should know the possible keys for the plugin + and filters, and the type of the values, and both check and parse + them for the plugin. + +* Modify open() API so it takes an export name and tls parameter. + +* Modify get_ready() API to pass final selected thread model. Filters + already get this information, but to date, we have not yet seen a + reason to add nbdkit_get_thread_model for use by v2 plugins. + +* Change config_help from a variable to a function. diff --git a/aclocal.m4 b/aclocal.m4 new file mode 100644 index 0000000..6e06db6 --- /dev/null +++ b/aclocal.m4 @@ -0,0 +1,1488 @@ +# generated automatically by aclocal 1.16.2 -*- Autoconf -*- + +# Copyright (C) 1996-2020 Free Software Foundation, Inc. + +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])]) +m4_ifndef([AC_AUTOCONF_VERSION], + [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl +m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],, +[m4_warning([this file was generated for autoconf 2.69. +You have another version of autoconf. It may work, but is not guaranteed to. +If you have problems, you may need to regenerate the build system entirely. +To do so, use the procedure documented by the package, typically 'autoreconf'.])]) + +# pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*- +# serial 11 (pkg-config-0.29.1) + +dnl Copyright © 2004 Scott James Remnant . +dnl Copyright © 2012-2015 Dan Nicholson +dnl +dnl This program is free software; you can redistribute it and/or modify +dnl it under the terms of the GNU General Public License as published by +dnl the Free Software Foundation; either version 2 of the License, or +dnl (at your option) any later version. +dnl +dnl This program is distributed in the hope that it will be useful, but +dnl WITHOUT ANY WARRANTY; without even the implied warranty of +dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +dnl General Public License for more details. +dnl +dnl You should have received a copy of the GNU General Public License +dnl along with this program; if not, write to the Free Software +dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA +dnl 02111-1307, USA. +dnl +dnl As a special exception to the GNU General Public License, if you +dnl distribute this file as part of a program that contains a +dnl configuration script generated by Autoconf, you may include it under +dnl the same distribution terms that you use for the rest of that +dnl program. + +dnl PKG_PREREQ(MIN-VERSION) +dnl ----------------------- +dnl Since: 0.29 +dnl +dnl Verify that the version of the pkg-config macros are at least +dnl MIN-VERSION. Unlike PKG_PROG_PKG_CONFIG, which checks the user's +dnl installed version of pkg-config, this checks the developer's version +dnl of pkg.m4 when generating configure. +dnl +dnl To ensure that this macro is defined, also add: +dnl m4_ifndef([PKG_PREREQ], +dnl [m4_fatal([must install pkg-config 0.29 or later before running autoconf/autogen])]) +dnl +dnl See the "Since" comment for each macro you use to see what version +dnl of the macros you require. +m4_defun([PKG_PREREQ], +[m4_define([PKG_MACROS_VERSION], [0.29.1]) +m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1, + [m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])]) +])dnl PKG_PREREQ + +dnl PKG_PROG_PKG_CONFIG([MIN-VERSION]) +dnl ---------------------------------- +dnl Since: 0.16 +dnl +dnl Search for the pkg-config tool and set the PKG_CONFIG variable to +dnl first found in the path. Checks that the version of pkg-config found +dnl is at least MIN-VERSION. If MIN-VERSION is not specified, 0.9.0 is +dnl used since that's the first version where most current features of +dnl pkg-config existed. +AC_DEFUN([PKG_PROG_PKG_CONFIG], +[m4_pattern_forbid([^_?PKG_[A-Z_]+$]) +m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$]) +m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$]) +AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility]) +AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path]) +AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path]) + +if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then + AC_PATH_TOOL([PKG_CONFIG], [pkg-config]) +fi +if test -n "$PKG_CONFIG"; then + _pkg_min_version=m4_default([$1], [0.9.0]) + AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version]) + if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then + AC_MSG_RESULT([yes]) + else + AC_MSG_RESULT([no]) + PKG_CONFIG="" + fi +fi[]dnl +])dnl PKG_PROG_PKG_CONFIG + +dnl PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) +dnl ------------------------------------------------------------------- +dnl Since: 0.18 +dnl +dnl Check to see whether a particular set of modules exists. Similar to +dnl PKG_CHECK_MODULES(), but does not set variables or print errors. +dnl +dnl Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG]) +dnl only at the first occurence in configure.ac, so if the first place +dnl it's called might be skipped (such as if it is within an "if", you +dnl have to call PKG_CHECK_EXISTS manually +AC_DEFUN([PKG_CHECK_EXISTS], +[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl +if test -n "$PKG_CONFIG" && \ + AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then + m4_default([$2], [:]) +m4_ifvaln([$3], [else + $3])dnl +fi]) + +dnl _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES]) +dnl --------------------------------------------- +dnl Internal wrapper calling pkg-config via PKG_CONFIG and setting +dnl pkg_failed based on the result. +m4_define([_PKG_CONFIG], +[if test -n "$$1"; then + pkg_cv_[]$1="$$1" + elif test -n "$PKG_CONFIG"; then + PKG_CHECK_EXISTS([$3], + [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes ], + [pkg_failed=yes]) + else + pkg_failed=untried +fi[]dnl +])dnl _PKG_CONFIG + +dnl _PKG_SHORT_ERRORS_SUPPORTED +dnl --------------------------- +dnl Internal check to see if pkg-config supports short errors. +AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED], +[AC_REQUIRE([PKG_PROG_PKG_CONFIG]) +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi[]dnl +])dnl _PKG_SHORT_ERRORS_SUPPORTED + + +dnl PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND], +dnl [ACTION-IF-NOT-FOUND]) +dnl -------------------------------------------------------------- +dnl Since: 0.4.0 +dnl +dnl Note that if there is a possibility the first call to +dnl PKG_CHECK_MODULES might not happen, you should be sure to include an +dnl explicit call to PKG_PROG_PKG_CONFIG in your configure.ac +AC_DEFUN([PKG_CHECK_MODULES], +[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl +AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl +AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl + +pkg_failed=no +AC_MSG_CHECKING([for $1]) + +_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2]) +_PKG_CONFIG([$1][_LIBS], [libs], [$2]) + +m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS +and $1[]_LIBS to avoid the need to call pkg-config. +See the pkg-config man page for more details.]) + +if test $pkg_failed = yes; then + AC_MSG_RESULT([no]) + _PKG_SHORT_ERRORS_SUPPORTED + if test $_pkg_short_errors_supported = yes; then + $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1` + else + $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD + + m4_default([$4], [AC_MSG_ERROR( +[Package requirements ($2) were not met: + +$$1_PKG_ERRORS + +Consider adjusting the PKG_CONFIG_PATH environment variable if you +installed software in a non-standard prefix. + +_PKG_TEXT])[]dnl + ]) +elif test $pkg_failed = untried; then + AC_MSG_RESULT([no]) + m4_default([$4], [AC_MSG_FAILURE( +[The pkg-config script could not be found or is too old. Make sure it +is in your PATH or set the PKG_CONFIG environment variable to the full +path to pkg-config. + +_PKG_TEXT + +To get pkg-config, see .])[]dnl + ]) +else + $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS + $1[]_LIBS=$pkg_cv_[]$1[]_LIBS + AC_MSG_RESULT([yes]) + $3 +fi[]dnl +])dnl PKG_CHECK_MODULES + + +dnl PKG_CHECK_MODULES_STATIC(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND], +dnl [ACTION-IF-NOT-FOUND]) +dnl --------------------------------------------------------------------- +dnl Since: 0.29 +dnl +dnl Checks for existence of MODULES and gathers its build flags with +dnl static libraries enabled. Sets VARIABLE-PREFIX_CFLAGS from --cflags +dnl and VARIABLE-PREFIX_LIBS from --libs. +dnl +dnl Note that if there is a possibility the first call to +dnl PKG_CHECK_MODULES_STATIC might not happen, you should be sure to +dnl include an explicit call to PKG_PROG_PKG_CONFIG in your +dnl configure.ac. +AC_DEFUN([PKG_CHECK_MODULES_STATIC], +[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl +_save_PKG_CONFIG=$PKG_CONFIG +PKG_CONFIG="$PKG_CONFIG --static" +PKG_CHECK_MODULES($@) +PKG_CONFIG=$_save_PKG_CONFIG[]dnl +])dnl PKG_CHECK_MODULES_STATIC + + +dnl PKG_INSTALLDIR([DIRECTORY]) +dnl ------------------------- +dnl Since: 0.27 +dnl +dnl Substitutes the variable pkgconfigdir as the location where a module +dnl should install pkg-config .pc files. By default the directory is +dnl $libdir/pkgconfig, but the default can be changed by passing +dnl DIRECTORY. The user can override through the --with-pkgconfigdir +dnl parameter. +AC_DEFUN([PKG_INSTALLDIR], +[m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])]) +m4_pushdef([pkg_description], + [pkg-config installation directory @<:@]pkg_default[@:>@]) +AC_ARG_WITH([pkgconfigdir], + [AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],, + [with_pkgconfigdir=]pkg_default) +AC_SUBST([pkgconfigdir], [$with_pkgconfigdir]) +m4_popdef([pkg_default]) +m4_popdef([pkg_description]) +])dnl PKG_INSTALLDIR + + +dnl PKG_NOARCH_INSTALLDIR([DIRECTORY]) +dnl -------------------------------- +dnl Since: 0.27 +dnl +dnl Substitutes the variable noarch_pkgconfigdir as the location where a +dnl module should install arch-independent pkg-config .pc files. By +dnl default the directory is $datadir/pkgconfig, but the default can be +dnl changed by passing DIRECTORY. The user can override through the +dnl --with-noarch-pkgconfigdir parameter. +AC_DEFUN([PKG_NOARCH_INSTALLDIR], +[m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])]) +m4_pushdef([pkg_description], + [pkg-config arch-independent installation directory @<:@]pkg_default[@:>@]) +AC_ARG_WITH([noarch-pkgconfigdir], + [AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],, + [with_noarch_pkgconfigdir=]pkg_default) +AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir]) +m4_popdef([pkg_default]) +m4_popdef([pkg_description]) +])dnl PKG_NOARCH_INSTALLDIR + + +dnl PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE, +dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) +dnl ------------------------------------------- +dnl Since: 0.28 +dnl +dnl Retrieves the value of the pkg-config variable for the given module. +AC_DEFUN([PKG_CHECK_VAR], +[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl +AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl + +_PKG_CONFIG([$1], [variable="][$3]["], [$2]) +AS_VAR_COPY([$1], [pkg_cv_][$1]) + +AS_VAR_IF([$1], [""], [$5], [$4])dnl +])dnl PKG_CHECK_VAR + +dnl PKG_WITH_MODULES(VARIABLE-PREFIX, MODULES, +dnl [ACTION-IF-FOUND],[ACTION-IF-NOT-FOUND], +dnl [DESCRIPTION], [DEFAULT]) +dnl ------------------------------------------ +dnl +dnl Prepare a "--with-" configure option using the lowercase +dnl [VARIABLE-PREFIX] name, merging the behaviour of AC_ARG_WITH and +dnl PKG_CHECK_MODULES in a single macro. +AC_DEFUN([PKG_WITH_MODULES], +[ +m4_pushdef([with_arg], m4_tolower([$1])) + +m4_pushdef([description], + [m4_default([$5], [build with ]with_arg[ support])]) + +m4_pushdef([def_arg], [m4_default([$6], [auto])]) +m4_pushdef([def_action_if_found], [AS_TR_SH([with_]with_arg)=yes]) +m4_pushdef([def_action_if_not_found], [AS_TR_SH([with_]with_arg)=no]) + +m4_case(def_arg, + [yes],[m4_pushdef([with_without], [--without-]with_arg)], + [m4_pushdef([with_without],[--with-]with_arg)]) + +AC_ARG_WITH(with_arg, + AS_HELP_STRING(with_without, description[ @<:@default=]def_arg[@:>@]),, + [AS_TR_SH([with_]with_arg)=def_arg]) + +AS_CASE([$AS_TR_SH([with_]with_arg)], + [yes],[PKG_CHECK_MODULES([$1],[$2],$3,$4)], + [auto],[PKG_CHECK_MODULES([$1],[$2], + [m4_n([def_action_if_found]) $3], + [m4_n([def_action_if_not_found]) $4])]) + +m4_popdef([with_arg]) +m4_popdef([description]) +m4_popdef([def_arg]) + +])dnl PKG_WITH_MODULES + +dnl PKG_HAVE_WITH_MODULES(VARIABLE-PREFIX, MODULES, +dnl [DESCRIPTION], [DEFAULT]) +dnl ----------------------------------------------- +dnl +dnl Convenience macro to trigger AM_CONDITIONAL after PKG_WITH_MODULES +dnl check._[VARIABLE-PREFIX] is exported as make variable. +AC_DEFUN([PKG_HAVE_WITH_MODULES], +[ +PKG_WITH_MODULES([$1],[$2],,,[$3],[$4]) + +AM_CONDITIONAL([HAVE_][$1], + [test "$AS_TR_SH([with_]m4_tolower([$1]))" = "yes"]) +])dnl PKG_HAVE_WITH_MODULES + +dnl PKG_HAVE_DEFINE_WITH_MODULES(VARIABLE-PREFIX, MODULES, +dnl [DESCRIPTION], [DEFAULT]) +dnl ------------------------------------------------------ +dnl +dnl Convenience macro to run AM_CONDITIONAL and AC_DEFINE after +dnl PKG_WITH_MODULES check. HAVE_[VARIABLE-PREFIX] is exported as make +dnl and preprocessor variable. +AC_DEFUN([PKG_HAVE_DEFINE_WITH_MODULES], +[ +PKG_HAVE_WITH_MODULES([$1],[$2],[$3],[$4]) + +AS_IF([test "$AS_TR_SH([with_]m4_tolower([$1]))" = "yes"], + [AC_DEFINE([HAVE_][$1], 1, [Enable ]m4_tolower([$1])[ support])]) +])dnl PKG_HAVE_DEFINE_WITH_MODULES + +# Copyright (C) 2002-2020 Free Software Foundation, Inc. +# +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# AM_AUTOMAKE_VERSION(VERSION) +# ---------------------------- +# Automake X.Y traces this macro to ensure aclocal.m4 has been +# generated from the m4 files accompanying Automake X.Y. +# (This private macro should not be called outside this file.) +AC_DEFUN([AM_AUTOMAKE_VERSION], +[am__api_version='1.16' +dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to +dnl require some minimum version. Point them to the right macro. +m4_if([$1], [1.16.2], [], + [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl +]) + +# _AM_AUTOCONF_VERSION(VERSION) +# ----------------------------- +# aclocal traces this macro to find the Autoconf version. +# This is a private macro too. Using m4_define simplifies +# the logic in aclocal, which can simply ignore this definition. +m4_define([_AM_AUTOCONF_VERSION], []) + +# AM_SET_CURRENT_AUTOMAKE_VERSION +# ------------------------------- +# Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced. +# This function is AC_REQUIREd by AM_INIT_AUTOMAKE. +AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION], +[AM_AUTOMAKE_VERSION([1.16.2])dnl +m4_ifndef([AC_AUTOCONF_VERSION], + [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl +_AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))]) + +# AM_AUX_DIR_EXPAND -*- Autoconf -*- + +# Copyright (C) 2001-2020 Free Software Foundation, Inc. +# +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets +# $ac_aux_dir to '$srcdir/foo'. 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IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = README + +if HAVE_BASH_COMPLETION + +dist_bashcomp_DATA = nbdkit + +endif diff --git a/bash/Makefile.in b/bash/Makefile.in new file mode 100644 index 0000000..a8a71c5 --- /dev/null +++ b/bash/Makefile.in @@ -0,0 +1,663 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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distclean-libtool distdir dvi dvi-am html html-am info info-am \ + install install-am install-data install-data-am \ + install-dist_bashcompDATA install-dvi install-dvi-am \ + install-exec install-exec-am install-html install-html-am \ + install-info install-info-am install-man install-pdf \ + install-pdf-am install-ps install-ps-am install-strip \ + installcheck installcheck-am installdirs maintainer-clean \ + maintainer-clean-generic mostlyclean mostlyclean-generic \ + mostlyclean-libtool pdf pdf-am ps ps-am tags-am uninstall \ + uninstall-am uninstall-dist_bashcompDATA + +.PRECIOUS: Makefile + + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/bash/README b/bash/README new file mode 100644 index 0000000..21a4f71 --- /dev/null +++ b/bash/README @@ -0,0 +1,8 @@ +This directory contains the scripts for tab-completing commands in +bash. Note these new-style demand-loaded scripts require +bash-completion >= 1.99. + +Tip: To test the bash completions without having to install them, +simply start a new shell and do: + + source ./bash/nbdkit; PATH=$PWD:$PATH diff --git a/bash/nbdkit b/bash/nbdkit new file mode 100644 index 0000000..c788ada --- /dev/null +++ b/bash/nbdkit @@ -0,0 +1,112 @@ +# nbdkit bash completion script -*- shell-script -*- +# Copyright (C) 2010-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +_nbdkit_list_plugins () +{ + local plugindir + plugindir="$( + nbdkit --dump-config | grep ^plugindir= | sed 's/^plugindir=//' + )" + ls -1 "$plugindir" | sed 's/^nbdkit-//' | sed 's/-plugin.*//' +} + +_nbdkit_list_filters () +{ + local filterdir + filterdir="$( + nbdkit --dump-config | grep ^filterdir= | sed 's/^filterdir=//' + )" + ls -1 "$filterdir" | sed 's/^nbdkit-//' | sed 's/-filter.*//' +} + +# This handler function is called when the user presses tab. +_nbdkit () +{ + local cur prev words cword split + local shortopts longopts plugin plugins filters args i + + _init_completion -s || return + + # Did we get the plugin name yet? + # This is only a heuristic because it can be confused by + # long opt parameters with an arguments. XXX + plugin= + for (( i=1; i < ${#words[@]}; ++i)) ; do + if [[ "${words[i]}" =~ ^[a-zA-Z0-9]+$ ]]; then + plugin="${words[i]}" + break + fi + done + + # Previous item on the current line is a completable flag or plugin name? + case "$prev" in + --filter) + filters="$(_nbdkit_list_filters)" + COMPREPLY=( $(compgen -W "$filters" "$cur") ) + return ;; + --tls) + COMPREPLY=( $(compgen -W "off on require" "$cur") ) + return ;; + # Could complete -u and -g options too. XXX + esac + + # Current item is an option we can expand? + case "$cur" in + --*) + longopts="$(nbdkit --long-options)" + COMPREPLY=( $(compgen -W "$longopts" -- "$cur") ) + return ;; + -*) + shortopts="$(nbdkit --short-options)" + longopts="$(nbdkit --long-options)" + COMPREPLY=( $(compgen -W "$shortopts $longopts" -- "$cur") ) + return ;; + *) + if [ "$plugin" = "" ] || [ "$plugin" = "$cur" ]; then + # Complete plugin name. + plugins="$(_nbdkit_list_plugins)" + COMPREPLY=( $(compgen -W "$plugins" "$cur") ) + return + else + # Complete plugin args. + args="$( + nbdkit $plugin --help 2>/dev/null | + grep -E '^[-a-z0-9]+=' | sed 's/=.*/=/' + )" + COMPREPLY=( $(compgen -W "$args" "$cur") ) + return + fi + ;; + esac +} + +# Install the handler function. +complete -o default -F _nbdkit nbdkit diff --git a/common-rules.mk b/common-rules.mk new file mode 100644 index 0000000..263dea9 --- /dev/null +++ b/common-rules.mk @@ -0,0 +1,38 @@ +# nbdkit +# Copyright (C) 2013-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Convenient list terminator +NULL = + +plugindir = $(libdir)/nbdkit/plugins +filterdir = $(libdir)/nbdkit/filters + +CLEANFILES = *~ *.cmi *.cmx *.cmxa *.so diff --git a/common/allocators/Makefile.am b/common/allocators/Makefile.am new file mode 100644 index 0000000..02f0e69 --- /dev/null +++ b/common/allocators/Makefile.am @@ -0,0 +1,54 @@ +# nbdkit +# Copyright (C) 2018-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +noinst_LTLIBRARIES = liballocators.la + +liballocators_la_SOURCES = \ + allocator.c \ + allocator.h \ + allocator-internal.h \ + malloc.c \ + sparse.c \ + zstd.c \ + $(NULL) +liballocators_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include \ + -I$(top_srcdir)/common/utils \ + $(NULL) +liballocators_la_CFLAGS = $(WARNINGS_CFLAGS) +liballocators_la_LIBADD = +if HAVE_LIBZSTD +liballocators_la_CFLAGS += $(LIBZSTD_CFLAGS) +liballocators_la_LIBADD += $(LIBZSTD_LIBS) +endif diff --git a/common/allocators/Makefile.in b/common/allocators/Makefile.in new file mode 100644 index 0000000..1065c90 --- /dev/null +++ b/common/allocators/Makefile.in @@ -0,0 +1,826 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_ALLOCATOR_INTERNAL_H +#define NBDKIT_ALLOCATOR_INTERNAL_H + +#include "vector.h" + +struct key_value { char *key, *value; }; +DEFINE_VECTOR_TYPE(allocator_parameters, struct key_value); + +extern void register_allocator (const struct allocator_functions *); + +#endif /* NBDKIT_ALLOCATOR_INTERNAL_H */ diff --git a/common/allocators/allocator.c b/common/allocators/allocator.c new file mode 100644 index 0000000..d306a84 --- /dev/null +++ b/common/allocators/allocator.c @@ -0,0 +1,167 @@ +/* nbdkit + * Copyright (C) 2013-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include + +#include + +#include "allocator.h" +#include "allocator-internal.h" +#include "vector.h" + +/* The list of registered allocators. */ +DEFINE_VECTOR_TYPE(allocator_list, const struct allocator_functions *); +static allocator_list allocators = empty_vector; + +void +register_allocator (const struct allocator_functions *f) +{ + if (allocator_list_append (&allocators, f) == -1) { + perror ("realloc"); + exit (EXIT_FAILURE); + } +} + +static void +free_key_value (struct key_value kv) +{ + free (kv.key); + free (kv.value); +} + +static void +free_allocator_parameters (allocator_parameters *params) +{ + allocator_parameters_iter (params, free_key_value); + free (params->ptr); +} + +/* The type may be followed by parameters "type,key=value[,...]" */ +static int +parse_parameters (const char *type, size_t *type_len, + allocator_parameters *params) +{ + size_t i, j, len; + + *type_len = strcspn (type, ","); + + nbdkit_debug ("allocator: %*s", (int) *type_len, type); + + /* Split the parameters. */ + for (i = *type_len; type[i] == ',';) { + struct key_value kv; + + i++; + len = strcspn (&type[i], ","); + if (len == 0) { + i++; + continue; + } + + j = strcspn (&type[i], "="); + if (j == 0) { + nbdkit_error ("invalid allocator parameter"); + free_allocator_parameters (params); + return -1; + } + if (j < len) { + kv.key = strndup (&type[i], j); + kv.value = strndup (&type[i+j+1], len-j-1); + } + else { + kv.key = strndup (&type[i], len); + kv.value = strdup ("1"); + } + if (kv.key == NULL || kv.value == NULL) { + nbdkit_error ("strdup: %m"); + free (kv.key); + free (kv.value); + free_allocator_parameters (params); + return -1; + } + + nbdkit_debug ("allocator parameter: %s=%s", kv.key, kv.value); + if (allocator_parameters_append (params, kv) == -1) { + nbdkit_error ("realloc: %m"); + free_allocator_parameters (params); + return -1; + } + i += len; + } + + return 0; +} + +struct allocator * +create_allocator (const char *type, bool debug) +{ + struct allocator *ret = NULL; + allocator_parameters params = empty_vector; + size_t i, type_len; + + if (parse_parameters (type, &type_len, ¶ms) == -1) + return NULL; + + /* See if we can find the allocator. */ + for (i = 0; i < allocators.size; ++i) { + if (strncmp (type, allocators.ptr[i]->type, type_len) == 0) { + ret = allocators.ptr[i]->create (¶ms); + break; + } + } + + if (ret == NULL) + nbdkit_error ("unknown allocator \"%s\"", type); + + /* Free the parameters allocated above. */ + free_allocator_parameters (¶ms); + + if (ret) { + ret->debug = debug; + ret->f = allocators.ptr[i]; + } + return ret; +} + +void +cleanup_free_allocator (struct allocator **ap) +{ + struct allocator *a = *ap; + + if (a && a->f) + a->f->free (a); +} diff --git a/common/allocators/allocator.h b/common/allocators/allocator.h new file mode 100644 index 0000000..5d7d3a3 --- /dev/null +++ b/common/allocators/allocator.h @@ -0,0 +1,153 @@ +/* nbdkit + * Copyright (C) 2013-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* This defines the generic allocator interface used by + * nbdkit-memory-plugin (and elsewhere) allocator=. It is + * implemented by specific allocators such as sparse.c. + * + * All allocators have an implicit size and grow when required. + * + * All allocators do their own locking if required. + */ + +#ifndef NBDKIT_ALLOCATOR_H +#define NBDKIT_ALLOCATOR_H + +#include +#include + +struct nbdkit_extents; + +struct allocator_functions { + /* Allocator type (eg. "sparse"). + * This does not include the parameters. + */ + const char *type; + + /* Private function called to create an allocator. It should return + * a new struct which is at least as large as struct allocator. It + * may have extra fields for the specific allocator to use. + */ + struct allocator *(*create) (const void *); + + /* Free the allocator instance. */ + void (*free) (struct allocator *a); + + /* Set the size hint. The size hint is used in various ways by some + * allocators, and ignored by others. + * + * The sparse and zstd array allocators ignore the size hint. + * + * The malloc allocator uses it to reserve the expected size of disk + * in memory (especially important if using mlock so we fail during + * start-up if there's not enough RAM). + * + * Note this does not set or enforce the virtual size of the disk, + * nor does it implement bounds checking. + */ + int (*set_size_hint) (struct allocator *a, uint64_t size) + __attribute__((__nonnull__ (1))); + + /* Read bytes from [offset, offset+count-1] and copy into buf. + */ + int (*read) (struct allocator *a, void *buf, + uint64_t count, uint64_t offset) + __attribute__((__nonnull__ (1, 2))); + + /* Write bytes from buf to [offset, offset+count-1]. Because this + * can allocate memory, it can fail (returning -1). + */ + int (*write) (struct allocator *a, const void *buf, + uint64_t count, uint64_t offset) + __attribute__((__nonnull__ (1, 2))); + + /* Fill range [offset, offset+count-1] with a single byte ‘c’. + * If c == '\0', this is the same as .zero below. + */ + int (*fill) (struct allocator *a, char c, uint64_t count, uint64_t offset) + __attribute__((__nonnull__ (1))); + + /* Zero range [offset, offset+count-1]. For all allocators zero and + * trim are the same operation. + */ + int (*zero) (struct allocator *a, uint64_t count, uint64_t offset) + __attribute__((__nonnull__ (1))); + + /* Blit (copy) between two allocators. Copy count bytes from + * a1.[offset1, offset1+count-1] to a2.[offset2, offset2+count-1]. + * + * Note you have to call the destination blit function, ie: + * a2->blit (a1, a2, ...) + * + * It's permitted for the allocators to have different types. + * However you cannot use this to copy within a single allocator + * (because of locks), ie. a1 must != a2. + */ + int (*blit) (struct allocator *a1, struct allocator *a2, + uint64_t count, uint64_t offset1, uint64_t offset2) + __attribute__((__nonnull__ (1, 2))); + + /* Return information about allocated pages and holes. */ + int (*extents) (struct allocator *a, + uint64_t count, uint64_t offset, + struct nbdkit_extents *extents) + __attribute__((__nonnull__ (1, 4))); +}; + +struct allocator { + const struct allocator_functions *f; + + /* Debug flag. */ + bool debug; +}; + +/* Create a new allocator, usually from the type passed in the + * allocator= parameter on the nbdkit command line (but you can + * also create your own internal allocators this way). + * + * The debug parameter can be attached to a plugin-specific -D option + * to provide extra debugging. + * + * Note that the type pointer is copied to the first field of the + * returned struct allocator, so it must be statically allocated (or + * at least live as long as the allocator). + * + * On error, calls nbdkit_error and returns NULL. + */ +extern struct allocator *create_allocator (const char *type, bool debug) + __attribute__((__nonnull__ (1))); + +#define CLEANUP_FREE_ALLOCATOR \ + __attribute__((cleanup (cleanup_free_allocator))) +extern void cleanup_free_allocator (struct allocator **ap); + +#endif /* NBDKIT_ALLOCATOR_H */ diff --git a/common/allocators/malloc.c b/common/allocators/malloc.c new file mode 100644 index 0000000..9dc25a8 --- /dev/null +++ b/common/allocators/malloc.c @@ -0,0 +1,312 @@ +/* nbdkit + * Copyright (C) 2013-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include + +#ifdef HAVE_SYS_MMAN_H +#include +#endif + +#include + +#include + +#include "cleanup.h" +#include "vector.h" + +#include "allocator.h" +#include "allocator-internal.h" + +/* This allocator implements a direct-mapped non-sparse RAM disk using + * malloc, with optional mlock. + */ + +DEFINE_VECTOR_TYPE(bytearray, uint8_t); + +struct m_alloc { + struct allocator a; /* Must come first. */ + bool use_mlock; + + /* Byte array (vector) implementing the direct-mapped disk. Note we + * don't use the .size field. Accesses must be protected by the + * lock since writes may try to extend the array. + */ + pthread_rwlock_t lock; + bytearray ba; +}; + +static void +m_alloc_free (struct allocator *a) +{ + struct m_alloc *ma = (struct m_alloc *) a; + + if (ma) { + free (ma->ba.ptr); + pthread_rwlock_destroy (&ma->lock); + free (ma); + } +} + +/* Extend the underlying bytearray if needed. mlock if requested. */ +static int +extend (struct m_alloc *ma, uint64_t new_size) +{ + ACQUIRE_WRLOCK_FOR_CURRENT_SCOPE (&ma->lock); + size_t old_size, n; + + if (ma->ba.alloc < new_size) { + old_size = ma->ba.alloc; + n = new_size - ma->ba.alloc; + +#ifdef HAVE_MUNLOCK + /* Since the memory might be moved by realloc, we must unlock the + * original array. + */ + if (ma->use_mlock) + munlock (ma->ba.ptr, ma->ba.alloc); +#endif + + if (bytearray_reserve (&ma->ba, n) == -1) { + nbdkit_error ("realloc: %m"); + return -1; + } + + /* Hints to the kernel. Doesn't matter if these fail. + * XXX Consider in future: MADV_MERGEABLE (tunable) + */ +#ifdef MADV_RANDOM + madvise (ma->ba.ptr, ma->ba.alloc, MADV_RANDOM); +#endif +#ifdef MADV_WILLNEED + madvise (ma->ba.ptr, ma->ba.alloc, MADV_WILLNEED); +#endif +#ifdef MADV_DONTFORK + madvise (ma->ba.ptr, ma->ba.alloc, MADV_DONTFORK); +#endif +#ifdef MADV_HUGEPAGE + madvise (ma->ba.ptr, ma->ba.alloc, MADV_HUGEPAGE); +#endif +#ifdef MADV_DONTDUMP + madvise (ma->ba.ptr, ma->ba.alloc, MADV_DONTDUMP); +#endif + + /* Initialize the newly allocated memory to 0. */ + memset (ma->ba.ptr + old_size, 0, n); + +#ifdef HAVE_MLOCK + if (ma->use_mlock) { + if (mlock (ma->ba.ptr, ma->ba.alloc) == -1) { + nbdkit_error ("allocator=malloc: mlock: %m"); + return -1; + } + } +#endif + } + + return 0; +} + +static int +m_alloc_set_size_hint (struct allocator *a, uint64_t size_hint) +{ + struct m_alloc *ma = (struct m_alloc *) a; + return extend (ma, size_hint); +} + +static int +m_alloc_read (struct allocator *a, void *buf, + uint64_t count, uint64_t offset) +{ + struct m_alloc *ma = (struct m_alloc *) a; + ACQUIRE_RDLOCK_FOR_CURRENT_SCOPE (&ma->lock); + + /* Avoid reading beyond the end of the allocated array. Return + * zeroes for that part. + */ + if (offset >= ma->ba.alloc) + memset (buf, 0, count); + else if (offset + count > ma->ba.alloc) { + memcpy (buf, ma->ba.ptr + offset, ma->ba.alloc - offset); + memset (buf + ma->ba.alloc - offset, 0, offset + count - ma->ba.alloc); + } + else + memcpy (buf, ma->ba.ptr + offset, count); + + return 0; +} + +static int +m_alloc_write (struct allocator *a, const void *buf, + uint64_t count, uint64_t offset) +{ + struct m_alloc *ma = (struct m_alloc *) a; + + if (extend (ma, offset+count) == -1) + return -1; + + /* This is correct: Even though we are writing, we only need to + * acquire the read lock here. The write lock applies to changing + * the metadata and it was acquired if we called extend(). + */ + ACQUIRE_RDLOCK_FOR_CURRENT_SCOPE (&ma->lock); + memcpy (ma->ba.ptr + offset, buf, count); + return 0; +} + +static int +m_alloc_fill (struct allocator *a, char c, uint64_t count, uint64_t offset) +{ + struct m_alloc *ma = (struct m_alloc *) a; + + if (extend (ma, offset+count) == -1) + return -1; + + /* See comment in m_alloc_write. */ + ACQUIRE_RDLOCK_FOR_CURRENT_SCOPE (&ma->lock); + memset (ma->ba.ptr + offset, c, count); + return 0; +} + +static int +m_alloc_zero (struct allocator *a, uint64_t count, uint64_t offset) +{ + struct m_alloc *ma = (struct m_alloc *) a; + ACQUIRE_RDLOCK_FOR_CURRENT_SCOPE (&ma->lock); + + /* Try to avoid extending the array, since the unallocated part + * always reads as zero. + */ + if (offset < ma->ba.alloc) { + if (offset + count > ma->ba.alloc) + memset (ma->ba.ptr + offset, 0, ma->ba.alloc - offset); + else + memset (ma->ba.ptr + offset, 0, count); + } + + return 0; +} + +static int +m_alloc_blit (struct allocator *a1, struct allocator *a2, + uint64_t count, uint64_t offset1, uint64_t offset2) +{ + struct m_alloc *ma2 = (struct m_alloc *) a2; + + assert (a1 != a2); + assert (strcmp (a2->f->type, "malloc") == 0); + + if (extend (ma2, offset2+count) == -1) + return -1; + + /* See comment in m_alloc_write. */ + ACQUIRE_RDLOCK_FOR_CURRENT_SCOPE (&ma2->lock); + return a1->f->read (a1, ma2->ba.ptr + offset2, count, offset1); +} + +static int +m_alloc_extents (struct allocator *a, + uint64_t count, uint64_t offset, + struct nbdkit_extents *extents) +{ + /* Always fully allocated. XXX In theory we could detect zeroes + * quite quickly and return that information, allowing the client to + * avoid reads. However we'd probably want to store a bitmap of + * which sectors we are known to have written to, and that + * complicates the implementation quite a lot. + */ + return nbdkit_add_extent (extents, offset, count, 0); +} + +struct allocator * +m_alloc_create (const void *paramsv) +{ + const allocator_parameters *params = paramsv; + struct m_alloc *ma; + bool use_mlock = false; + size_t i; + + /* Parse the optional mlock=true|false parameter. */ + for (i = 0; i < params->size; ++i) { + if (strcmp (params->ptr[i].key, "mlock") == 0) { + int r = nbdkit_parse_bool (params->ptr[i].value); + if (r == -1) return NULL; + use_mlock = r; +#ifndef HAVE_MLOCK + if (use_mlock) { + nbdkit_error ("mlock is not supported on this platform"); + return NULL; + } +#endif + } + else { + nbdkit_error ("allocator=malloc: unknown parameter %s", + params->ptr[i].key); + return NULL; + } + } + + ma = calloc (1, sizeof *ma); + if (ma == NULL) { + nbdkit_error ("calloc: %m"); + return NULL; + } + ma->use_mlock = use_mlock; + pthread_rwlock_init (&ma->lock, NULL); + ma->ba = (bytearray) empty_vector; + return (struct allocator *) ma; +} + +static struct allocator_functions functions = { + .type = "malloc", + .create = m_alloc_create, + .free = m_alloc_free, + .set_size_hint = m_alloc_set_size_hint, + .read = m_alloc_read, + .write = m_alloc_write, + .fill = m_alloc_fill, + .zero = m_alloc_zero, + .blit = m_alloc_blit, + .extents = m_alloc_extents, +}; + +static void register_malloc (void) __attribute__((constructor)); + +static void +register_malloc (void) +{ + register_allocator (&functions); +} diff --git a/common/allocators/sparse.c b/common/allocators/sparse.c new file mode 100644 index 0000000..ca508c3 --- /dev/null +++ b/common/allocators/sparse.c @@ -0,0 +1,545 @@ +/* nbdkit + * Copyright (C) 2017-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include + +#include "cleanup.h" +#include "iszero.h" +#include "vector.h" + +#include "allocator.h" +#include "allocator-internal.h" + +/* This allocator implements a sparse array of any size up to 2⁶³-1 + * bytes. + * + * The array reads as zeroes until something is written. + * + * The implementation aims to be reasonably efficient for ordinary + * sized disks, while permitting huge (but sparse) disks for testing. + * Everything allocated has to be stored in memory. There is no + * temporary file backing. + * + * XXX It would be nice to change the locking to use r/w locks here, + * as that ought to greatly benefit read-heavy loads using multi-conn. + */ + +/* Two level directory for the sparse array. + * + * nbdkit supports disk sizes up to 2⁶³-1. The aim of the sparse + * array is to support up to 63 bit images for testing, although it + * won't necessarily be efficient for that use. However it should + * also be efficient for more reasonable sized disks. + * + * Although the CPU implements effectively the same kind of data + * structure (page tables) there are some advantages of reimplementing + * this: + * + * 1. Support for 32 bit (or even 64 bit since the virtual memory + * address space on 64 bit machines is not 63 bits in size). + * + * 2. In Linux, overcommit defaults prevent use of virtual memory as a + * sparse array without intrusive system configuration changes. + * + * 3. Could choose a page size which is more appropriate for disk + * images, plus some architectures have much larger page sizes than + * others making behaviour inconsistent across arches. + * + * To achieve this we use a B-Tree-like structure. The L1 directory + * contains an ordered, non-overlapping, non-contiguous list of + * (offset, pointer to L2 directory). + * + * Updating the L1 directory requires a linear scan but that operation + * should be very rare. Because the L1 directory is stored in order + * of offset, we can use an efficient binary search for lookups. + * + * Each L1 directory entry can address up to PAGE_SIZE*L2_SIZE bytes + * in the virtual disk image. With the current parameters this is + * 128MB, which is enough for a 100MB image to fit into a single L1 + * directory, or a 10GB image to fit into 80 L1 entries. The page + * pointers in the L2 directory can be NULL (meaning no page / all + * zeroes). + * + * ┌────────────────────┐ + * │ L1 directory │ ┌────────────────────┐ + * │ offset, entry 0 ─────────▶ | L2 directory | + * │ offset, entry 1 │ | page 0 ─────────▶ page + * │ offset, entry 2 │ │ page 1 ─────────▶ page + * │ ... │ │ page 2 ─────────▶ page + * └────────────────────┘ │ ... │ + * │ page L2_SIZE-1 ─────────▶ page + * └────────────────────┘ + */ +#define PAGE_SIZE 32768 +#define L2_SIZE 4096 + +struct l2_entry { + void *page; /* Pointer to page (array of PAGE_SIZE bytes).*/ +}; + +struct l1_entry { + uint64_t offset; /* Virtual offset of this entry. */ + struct l2_entry *l2_dir; /* Pointer to L2 directory (L2_SIZE entries). */ +}; + +DEFINE_VECTOR_TYPE(l1_dir, struct l1_entry); + +struct sparse_array { + struct allocator a; /* Must come first. */ + pthread_mutex_t lock; + l1_dir l1_dir; /* L1 directory. */ +}; + +/* Free L1 and/or L2 directories. */ +static void +free_l2_dir (struct l2_entry *l2_dir) +{ + size_t i; + + for (i = 0; i < L2_SIZE; ++i) + free (l2_dir[i].page); + free (l2_dir); +} + +static void +sparse_array_free (struct allocator *a) +{ + struct sparse_array *sa = (struct sparse_array *) a; + size_t i; + + if (sa) { + for (i = 0; i < sa->l1_dir.size; ++i) + free_l2_dir (sa->l1_dir.ptr[i].l2_dir); + free (sa->l1_dir.ptr); + pthread_mutex_destroy (&sa->lock); + free (sa); + } +} + +static int +sparse_array_set_size_hint (struct allocator *a, uint64_t size) +{ + /* Ignored. */ + return 0; +} + +/* Comparison function used when searching through the L1 directory. */ +static int +compare_l1_offsets (const void *offsetp, const struct l1_entry *e) +{ + const uint64_t offset = *(uint64_t *)offsetp; + + if (offset < e->offset) return -1; + if (offset >= e->offset + PAGE_SIZE*L2_SIZE) return 1; + return 0; +} + +/* Insert an entry in the L1 directory, keeping it ordered by offset. + * This involves an expensive linear scan but should be very rare. + */ +static int +insert_l1_entry (struct sparse_array *sa, const struct l1_entry *entry) +{ + size_t i; + + for (i = 0; i < sa->l1_dir.size; ++i) { + if (entry->offset < sa->l1_dir.ptr[i].offset) { + /* Insert new entry before i'th directory entry. */ + if (l1_dir_insert (&sa->l1_dir, *entry, i) == -1) { + nbdkit_error ("realloc: %m"); + return -1; + } + if (sa->a.debug) + nbdkit_debug ("%s: inserted new L1 entry for %" PRIu64 + " at l1_dir.ptr[%zu]", + __func__, entry->offset, i); + return 0; + } + + /* This should never happens since each entry in the the L1 + * directory is supposed to be unique. + */ + assert (entry->offset != sa->l1_dir.ptr[i].offset); + } + + /* Insert new entry at the end. */ + if (l1_dir_append (&sa->l1_dir, *entry) == -1) { + nbdkit_error ("realloc: %m"); + return -1; + } + if (sa->a.debug) + nbdkit_debug ("%s: inserted new L1 entry for %" PRIu64 + " at end of l1_dir", __func__, entry->offset); + return 0; +} + +/* Look up a virtual offset, returning the address of the offset, the + * count of bytes to the end of the page, and a pointer to the L2 + * directory entry containing the page pointer. + * + * If the create flag is set then a new page and/or directory will be + * allocated if necessary. Use this flag when writing. + * + * NULL may be returned normally if the page is not mapped (meaning it + * reads as zero). However if the create flag is set and NULL is + * returned, this indicates an error. + */ +static void * +lookup (struct sparse_array *sa, uint64_t offset, bool create, + uint64_t *remaining, struct l2_entry **l2_entry) +{ + struct l1_entry *entry; + struct l2_entry *l2_dir; + uint64_t o; + void *page; + struct l1_entry new_entry; + + *remaining = PAGE_SIZE - (offset & (PAGE_SIZE-1)); + + again: + /* Search the L1 directory. */ + entry = l1_dir_search (&sa->l1_dir, &offset, compare_l1_offsets); + + if (sa->a.debug) { + if (entry) + nbdkit_debug ("%s: search L1 dir: entry found: offset %" PRIu64, + __func__, entry->offset); + else + nbdkit_debug ("%s: search L1 dir: no entry found", __func__); + } + + if (entry) { + l2_dir = entry->l2_dir; + + /* Which page in the L2 directory? */ + o = (offset - entry->offset) / PAGE_SIZE; + if (l2_entry) + *l2_entry = &l2_dir[o]; + page = l2_dir[o].page; + if (!page && create) { + /* No page allocated. Allocate one if creating. */ + page = calloc (PAGE_SIZE, 1); + if (page == NULL) { + nbdkit_error ("calloc: %m"); + return NULL; + } + l2_dir[o].page = page; + } + if (!page) + return NULL; + else + return page + (offset & (PAGE_SIZE-1)); + } + + /* No L1 directory entry found. */ + if (!create) + return NULL; + + /* No L1 directory entry, and we're creating, so we need to allocate + * a new L1 directory entry and insert it in the L1 directory, and + * allocate the L2 directory with NULL page pointers. Then we can + * repeat the above search to create the page. + */ + new_entry.offset = offset & ~(PAGE_SIZE*L2_SIZE-1); + new_entry.l2_dir = calloc (L2_SIZE, sizeof (struct l2_entry)); + if (new_entry.l2_dir == NULL) { + nbdkit_error ("calloc: %m"); + return NULL; + } + if (insert_l1_entry (sa, &new_entry) == -1) { + free (new_entry.l2_dir); + return NULL; + } + goto again; +} + +static int +sparse_array_read (struct allocator *a, + void *buf, uint64_t count, uint64_t offset) +{ + struct sparse_array *sa = (struct sparse_array *) a; + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&sa->lock); + uint64_t n; + void *p; + + while (count > 0) { + p = lookup (sa, offset, false, &n, NULL); + if (n > count) + n = count; + + if (p == NULL) + memset (buf, 0, n); + else + memcpy (buf, p, n); + + buf += n; + count -= n; + offset += n; + } + + return 0; +} + +static int +sparse_array_write (struct allocator *a, + const void *buf, uint64_t count, uint64_t offset) +{ + struct sparse_array *sa = (struct sparse_array *) a; + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&sa->lock); + uint64_t n; + void *p; + + while (count > 0) { + p = lookup (sa, offset, true, &n, NULL); + if (p == NULL) + return -1; + + if (n > count) + n = count; + memcpy (p, buf, n); + + buf += n; + count -= n; + offset += n; + } + + return 0; +} + +static int sparse_array_zero (struct allocator *a, + uint64_t count, uint64_t offset); + +static int +sparse_array_fill (struct allocator *a, char c, + uint64_t count, uint64_t offset) +{ + struct sparse_array *sa = (struct sparse_array *) a; + uint64_t n; + void *p; + + if (c == 0) + return sparse_array_zero (a, count, offset); + + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&sa->lock); + + while (count > 0) { + p = lookup (sa, offset, true, &n, NULL); + if (p == NULL) + return -1; + + if (n > count) + n = count; + memset (p, c, n); + + count -= n; + offset += n; + } + + return 0; +} + +static int +sparse_array_zero (struct allocator *a, uint64_t count, uint64_t offset) +{ + struct sparse_array *sa = (struct sparse_array *) a; + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&sa->lock); + uint64_t n; + void *p; + struct l2_entry *l2_entry; + + while (count > 0) { + p = lookup (sa, offset, false, &n, &l2_entry); + if (n > count) + n = count; + + if (p) { + if (n < PAGE_SIZE) + memset (p, 0, n); + else + assert (p == l2_entry->page); + + /* If the whole page is now zero, free it. */ + if (n >= PAGE_SIZE || is_zero (l2_entry->page, PAGE_SIZE)) { + if (sa->a.debug) + nbdkit_debug ("%s: freeing zero page at offset %" PRIu64, + __func__, offset); + free (l2_entry->page); + l2_entry->page = NULL; + } + } + + count -= n; + offset += n; + } + + return 0; +} + +static int +sparse_array_blit (struct allocator *a1, + struct allocator *a2, + uint64_t count, + uint64_t offset1, uint64_t offset2) +{ + struct sparse_array *sa2 = (struct sparse_array *) a2; + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&sa2->lock); + uint64_t n; + void *p; + struct l2_entry *l2_entry; + + assert (a1 != a2); + assert (strcmp (a2->f->type, "sparse") == 0); + + while (count > 0) { + p = lookup (sa2, offset2, true, &n, &l2_entry); + if (p == NULL) + return -1; + + if (n > count) + n = count; + + /* Read the source allocator (a1) directly to p which points into + * the right place in sa2. + */ + if (a1->f->read (a1, p, n, offset1) == -1) + return -1; + + /* If the whole page is now zero, free it. */ + if (is_zero (l2_entry->page, PAGE_SIZE)) { + if (sa2->a.debug) + nbdkit_debug ("%s: freeing zero page at offset %" PRIu64, + __func__, offset2); + free (l2_entry->page); + l2_entry->page = NULL; + } + + count -= n; + offset1 += n; + offset2 += n; + } + + return 0; +} + +static int +sparse_array_extents (struct allocator *a, + uint64_t count, uint64_t offset, + struct nbdkit_extents *extents) +{ + struct sparse_array *sa = (struct sparse_array *) a; + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&sa->lock); + uint64_t n; + uint32_t type; + void *p; + + while (count > 0) { + p = lookup (sa, offset, false, &n, NULL); + + /* Work out the type of this extent. */ + if (p == NULL) + /* No backing page, so it's a hole. */ + type = NBDKIT_EXTENT_HOLE | NBDKIT_EXTENT_ZERO; + else { + if (is_zero (p, n)) + /* A backing page and it's all zero, it's a zero extent. */ + type = NBDKIT_EXTENT_ZERO; + else + /* Normal allocated data. */ + type = 0; + } + if (nbdkit_add_extent (extents, offset, n, type) == -1) + return -1; + + if (n > count) + n = count; + + count -= n; + offset += n; + } + + return 0; +} + +static struct allocator * +sparse_array_create (const void *paramsv) +{ + const allocator_parameters *params = paramsv; + struct sparse_array *sa; + + if (params->size > 0) { + nbdkit_error ("allocator=sparse does not take extra parameters"); + return NULL; + } + + sa = calloc (1, sizeof *sa); + if (sa == NULL) { + nbdkit_error ("calloc: %m"); + return NULL; + } + pthread_mutex_init (&sa->lock, NULL); + + return (struct allocator *) sa; +} + +static struct allocator_functions functions = { + .type = "sparse", + .create = sparse_array_create, + .free = sparse_array_free, + .set_size_hint = sparse_array_set_size_hint, + .read = sparse_array_read, + .write = sparse_array_write, + .fill = sparse_array_fill, + .zero = sparse_array_zero, + .blit = sparse_array_blit, + .extents = sparse_array_extents, +}; + +static void register_sparse_array (void) __attribute__((constructor)); + +static void +register_sparse_array (void) +{ + register_allocator (&functions); +} diff --git a/common/allocators/zstd.c b/common/allocators/zstd.c new file mode 100644 index 0000000..6dd9741 --- /dev/null +++ b/common/allocators/zstd.c @@ -0,0 +1,656 @@ +/* nbdkit + * Copyright (C) 2017-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include + +#include "cleanup.h" +#include "iszero.h" +#include "vector.h" + +#include "allocator.h" +#include "allocator-internal.h" + +#ifdef HAVE_LIBZSTD + +#include + +/* This is derived from the sparse array implementation - see + * common/allocators/sparse.c for details of how it works. + * + * TO DO: + * + * (1) We can avoid decompressing a page if we know we are going to + * write over / trim / zero the whole page. + * + * (2) Locking is correct but very naive. It should be possible to + * take much more fine-grained locks. + * + * (3) Better stats: Can we iterate over the page table in order to + * find the ratio of uncompressed : compressed? + * + * Once some optimizations are made it would be worth profiling to + * find the hot spots. + */ +#define PAGE_SIZE 32768 +#define L2_SIZE 4096 + +struct l2_entry { + void *page; /* Pointer to compressed data. */ +}; + +struct l1_entry { + uint64_t offset; /* Virtual offset of this entry. */ + struct l2_entry *l2_dir; /* Pointer to L2 directory (L2_SIZE entries). */ +}; + +DEFINE_VECTOR_TYPE(l1_dir, struct l1_entry); + +struct zstd_array { + struct allocator a; /* Must come first. */ + pthread_mutex_t lock; + l1_dir l1_dir; /* L1 directory. */ + + /* Compression context and decompression stream. We use the + * streaming API for decompression because it allows us to + * decompress without storing the compressed size, so we need a + * streaming object. But in fact decompression context and stream + * are the same thing since zstd 1.3.0. + * + * If we ever get serious about making this allocator work well + * multi-threaded [at the moment the locking is too course-grained], + * then the zstd documentation recommends creating a context per + * thread. + */ + ZSTD_CCtx *zcctx; + ZSTD_DStream *zdstrm; + + /* Collect stats when we compress a page. */ + uint64_t stats_uncompressed_bytes; + uint64_t stats_compressed_bytes; +}; + +/* Free L1 and/or L2 directories. */ +static void +free_l2_dir (struct l2_entry *l2_dir) +{ + size_t i; + + for (i = 0; i < L2_SIZE; ++i) + free (l2_dir[i].page); + free (l2_dir); +} + +static void +zstd_array_free (struct allocator *a) +{ + struct zstd_array *za = (struct zstd_array *) a; + size_t i; + + if (za) { + if (za->stats_compressed_bytes > 0) + nbdkit_debug ("zstd: compression ratio: %g : 1", + (double) za->stats_uncompressed_bytes / + za->stats_compressed_bytes); + + ZSTD_freeCCtx (za->zcctx); + ZSTD_freeDStream (za->zdstrm); + for (i = 0; i < za->l1_dir.size; ++i) + free_l2_dir (za->l1_dir.ptr[i].l2_dir); + free (za->l1_dir.ptr); + pthread_mutex_destroy (&za->lock); + free (za); + } +} + +static int +zstd_array_set_size_hint (struct allocator *a, uint64_t size) +{ + /* Ignored. */ + return 0; +} + +/* Comparison function used when searching through the L1 directory. */ +static int +compare_l1_offsets (const void *offsetp, const struct l1_entry *e) +{ + const uint64_t offset = *(uint64_t *)offsetp; + + if (offset < e->offset) return -1; + if (offset >= e->offset + PAGE_SIZE*L2_SIZE) return 1; + return 0; +} + +/* Insert an entry in the L1 directory, keeping it ordered by offset. + * This involves an expensive linear scan but should be very rare. + */ +static int +insert_l1_entry (struct zstd_array *za, const struct l1_entry *entry) +{ + size_t i; + + for (i = 0; i < za->l1_dir.size; ++i) { + if (entry->offset < za->l1_dir.ptr[i].offset) { + /* Insert new entry before i'th directory entry. */ + if (l1_dir_insert (&za->l1_dir, *entry, i) == -1) { + nbdkit_error ("realloc: %m"); + return -1; + } + if (za->a.debug) + nbdkit_debug ("%s: inserted new L1 entry for %" PRIu64 + " at l1_dir.ptr[%zu]", + __func__, entry->offset, i); + return 0; + } + + /* This should never happens since each entry in the the L1 + * directory is supposed to be unique. + */ + assert (entry->offset != za->l1_dir.ptr[i].offset); + } + + /* Insert new entry at the end. */ + if (l1_dir_append (&za->l1_dir, *entry) == -1) { + nbdkit_error ("realloc: %m"); + return -1; + } + if (za->a.debug) + nbdkit_debug ("%s: inserted new L1 entry for %" PRIu64 + " at end of l1_dir", __func__, entry->offset); + return 0; +} + +/* Look up a virtual offset. + * + * If the L2 page is mapped then this uncompresses the page into the + * caller's buffer (of size PAGE_SIZE), returning the address of the + * offset, the count of bytes to the end of the page, and a pointer to + * the L2 directory entry containing the page pointer. + * + * If the L2 page is not mapped this clears the caller's buffer, also + * returning the pointer. + * + * To read data you don't need to do anything else. + * + * To write data, after updating the buffer, you must subsequently + * call compress() below. + * + * This function cannot return an error. + */ +static void * +lookup_decompress (struct zstd_array *za, uint64_t offset, void *buf, + uint64_t *remaining, struct l2_entry **l2_entry) +{ + struct l1_entry *entry; + struct l2_entry *l2_dir; + uint64_t o; + void *page; + + *remaining = PAGE_SIZE - (offset & (PAGE_SIZE-1)); + + /* Search the L1 directory. */ + entry = l1_dir_search (&za->l1_dir, &offset, compare_l1_offsets); + + if (za->a.debug) { + if (entry) + nbdkit_debug ("%s: search L1 dir: entry found: offset %" PRIu64, + __func__, entry->offset); + else + nbdkit_debug ("%s: search L1 dir: no entry found", __func__); + } + + if (entry) { + l2_dir = entry->l2_dir; + + /* Which page in the L2 directory? */ + o = (offset - entry->offset) / PAGE_SIZE; + if (l2_entry) + *l2_entry = &l2_dir[o]; + page = l2_dir[o].page; + + if (page) { + /* Decompress the page into the user buffer. We assume this can + * never fail since the only pages we decompress are ones we + * have compressed. We use the streaming API because the normal + * ZSTD_decompressDCtx function requires the compressed size, + * whereas the streaming API does not. + */ + ZSTD_inBuffer inb = { .src = page, .size = SIZE_MAX, .pos = 0 }; + ZSTD_outBuffer outb = { .dst = buf, .size = PAGE_SIZE, .pos = 0 }; + + ZSTD_initDStream (za->zdstrm); + while (outb.pos < outb.size) + ZSTD_decompressStream (za->zdstrm, &outb, &inb); + assert (outb.pos == PAGE_SIZE); + } + else + memset (buf, 0, PAGE_SIZE); + + return buf + (offset & (PAGE_SIZE-1)); + } + + /* No L1 directory entry found. */ + memset (buf, 0, PAGE_SIZE); + return buf + (offset & (PAGE_SIZE-1)); +} + +/* Compress a page back after modifying it. + * + * This replaces a L2 page with a new version compressed from the + * modified user buffer. + * + * It may fail, calling nbdkit_error and returning -1. + */ +static int +compress (struct zstd_array *za, uint64_t offset, void *buf) +{ + struct l1_entry *entry; + struct l2_entry *l2_dir; + uint64_t o; + void *page; + struct l1_entry new_entry; + size_t n; + + again: + /* Search the L1 directory. */ + entry = l1_dir_search (&za->l1_dir, &offset, compare_l1_offsets); + + if (za->a.debug) { + if (entry) + nbdkit_debug ("%s: search L1 dir: entry found: offset %" PRIu64, + __func__, entry->offset); + else + nbdkit_debug ("%s: search L1 dir: no entry found", __func__); + } + + if (entry) { + l2_dir = entry->l2_dir; + + /* Which page in the L2 directory? */ + o = (offset - entry->offset) / PAGE_SIZE; + free (l2_dir[o].page); + l2_dir[o].page = NULL; + + /* Allocate a new page. */ + n = ZSTD_compressBound (PAGE_SIZE); + page = malloc (n); + if (page == NULL) { + nbdkit_error ("malloc: %m"); + return -1; + } + n = ZSTD_compressCCtx (za->zcctx, page, n, + buf, PAGE_SIZE, ZSTD_CLEVEL_DEFAULT); + if (ZSTD_isError (n)) { + nbdkit_error ("ZSTD_compressCCtx: %s", ZSTD_getErrorName (n)); + return -1; + } + page = realloc (page, n); + assert (page != NULL); + l2_dir[o].page = page; + za->stats_uncompressed_bytes += PAGE_SIZE; + za->stats_compressed_bytes += n; + return 0; + } + + /* No L1 directory entry, so we need to allocate a new L1 directory + * entry and insert it in the L1 directory, and allocate the L2 + * directory with NULL page pointers. Then we can repeat the above + * search to create the page. + */ + new_entry.offset = offset & ~(PAGE_SIZE*L2_SIZE-1); + new_entry.l2_dir = calloc (L2_SIZE, sizeof (struct l2_entry)); + if (new_entry.l2_dir == NULL) { + nbdkit_error ("calloc: %m"); + return -1; + } + if (insert_l1_entry (za, &new_entry) == -1) { + free (new_entry.l2_dir); + return -1; + } + goto again; +} + +static int +zstd_array_read (struct allocator *a, + void *buf, uint64_t count, uint64_t offset) +{ + struct zstd_array *za = (struct zstd_array *) a; + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&za->lock); + CLEANUP_FREE void *tbuf = NULL; + uint64_t n; + void *p; + + tbuf = malloc (PAGE_SIZE); + if (tbuf == NULL) { + nbdkit_error ("malloc: %m"); + return -1; + } + + while (count > 0) { + p = lookup_decompress (za, offset, tbuf, &n, NULL); + if (n > count) + n = count; + + memcpy (buf, p, n); + + buf += n; + count -= n; + offset += n; + } + + return 0; +} + +static int +zstd_array_write (struct allocator *a, + const void *buf, uint64_t count, uint64_t offset) +{ + struct zstd_array *za = (struct zstd_array *) a; + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&za->lock); + CLEANUP_FREE void *tbuf = NULL; + uint64_t n; + void *p; + + tbuf = malloc (PAGE_SIZE); + if (tbuf == NULL) { + nbdkit_error ("malloc: %m"); + return -1; + } + + while (count > 0) { + p = lookup_decompress (za, offset, tbuf, &n, NULL); + + if (n > count) + n = count; + memcpy (p, buf, n); + + if (compress (za, offset, tbuf) == -1) + return -1; + + buf += n; + count -= n; + offset += n; + } + + return 0; +} + +static int zstd_array_zero (struct allocator *a, + uint64_t count, uint64_t offset); + +static int +zstd_array_fill (struct allocator *a, char c, + uint64_t count, uint64_t offset) +{ + struct zstd_array *za = (struct zstd_array *) a; + CLEANUP_FREE void *tbuf = NULL; + uint64_t n; + void *p; + + if (c == 0) { + zstd_array_zero (a, count, offset); + return 0; + } + + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&za->lock); + + tbuf = malloc (PAGE_SIZE); + if (tbuf == NULL) { + nbdkit_error ("malloc: %m"); + return -1; + } + + while (count > 0) { + p = lookup_decompress (za, offset, tbuf, &n, NULL); + + if (n > count) + n = count; + memset (p, c, n); + + if (compress (za, offset, tbuf) == -1) + return -1; + + count -= n; + offset += n; + } + + return 0; +} + +static int +zstd_array_zero (struct allocator *a, uint64_t count, uint64_t offset) +{ + struct zstd_array *za = (struct zstd_array *) a; + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&za->lock); + CLEANUP_FREE void *tbuf = NULL; + uint64_t n; + void *p; + struct l2_entry *l2_entry; + + tbuf = malloc (PAGE_SIZE); + if (tbuf == NULL) { + nbdkit_error ("malloc: %m"); + return -1; + } + + while (count > 0) { + p = lookup_decompress (za, offset, tbuf, &n, &l2_entry); + + if (n > count) + n = count; + memset (p, 0, n); + + if (l2_entry->page) { + /* If the whole page is now zero, free it. */ + if (n >= PAGE_SIZE || is_zero (l2_entry->page, PAGE_SIZE)) { + if (za->a.debug) + nbdkit_debug ("%s: freeing zero page at offset %" PRIu64, + __func__, offset); + free (l2_entry->page); + l2_entry->page = NULL; + } + else { + if (compress (za, offset, tbuf) == -1) + return -1; + } + } + + count -= n; + offset += n; + } + + return 0; +} + +static int +zstd_array_blit (struct allocator *a1, + struct allocator *a2, + uint64_t count, + uint64_t offset1, uint64_t offset2) +{ + struct zstd_array *za2 = (struct zstd_array *) a2; + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&za2->lock); + CLEANUP_FREE void *tbuf = NULL; + uint64_t n; + void *p; + + assert (a1 != a2); + assert (strcmp (a2->f->type, "zstd") == 0); + + tbuf = malloc (PAGE_SIZE); + if (tbuf == NULL) { + nbdkit_error ("malloc: %m"); + return -1; + } + + while (count > 0) { + p = lookup_decompress (za2, offset2, tbuf, &n, NULL); + + if (n > count) + n = count; + + /* Read the source allocator (a1) directly to p which points into + * the right place in za2. + */ + if (a1->f->read (a1, p, n, offset1) == -1) + return -1; + + if (compress (za2, offset2, tbuf) == -1) + return -1; + + count -= n; + offset1 += n; + offset2 += n; + } + + return 0; +} + +static int +zstd_array_extents (struct allocator *a, + uint64_t count, uint64_t offset, + struct nbdkit_extents *extents) +{ + struct zstd_array *za = (struct zstd_array *) a; + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&za->lock); + CLEANUP_FREE void *buf = NULL; + uint64_t n; + uint32_t type; + void *p; + struct l2_entry *l2_entry; + + buf = malloc (PAGE_SIZE); + if (buf == NULL) { + nbdkit_error ("malloc: %m"); + return -1; + } + + while (count > 0) { + p = lookup_decompress (za, offset, buf, &n, &l2_entry); + + /* Work out the type of this extent. */ + if (l2_entry->page == NULL) + /* No backing page, so it's a hole. */ + type = NBDKIT_EXTENT_HOLE | NBDKIT_EXTENT_ZERO; + else { + if (is_zero (p, n)) + /* A backing page and it's all zero, it's a zero extent. */ + type = NBDKIT_EXTENT_ZERO; + else + /* Normal allocated data. */ + type = 0; + } + if (nbdkit_add_extent (extents, offset, n, type) == -1) + return -1; + + if (n > count) + n = count; + + count -= n; + offset += n; + } + + return 0; +} + +struct allocator * +zstd_array_create (const void *paramsv) +{ + const allocator_parameters *params = paramsv; + struct zstd_array *za; + + if (params->size > 0) { + nbdkit_error ("allocator=zstd does not take extra parameters"); + return NULL; + } + + za = calloc (1, sizeof *za); + if (za == NULL) { + nbdkit_error ("calloc: %m"); + return NULL; + } + + pthread_mutex_init (&za->lock, NULL); + + za->zcctx = ZSTD_createCCtx (); + if (za->zcctx == NULL) { + nbdkit_error ("ZSTD_createCCtx: %m"); + free (za); + return NULL; + } + za->zdstrm = ZSTD_createDStream (); + if (za->zdstrm == NULL) { + nbdkit_error ("ZSTD_createDStream: %m"); + ZSTD_freeCCtx (za->zcctx); + free (za); + return NULL; + } + + za->stats_uncompressed_bytes = za->stats_compressed_bytes = 0; + + return (struct allocator *) za; +} + +static struct allocator_functions functions = { + .type = "zstd", + .create = zstd_array_create, + .free = zstd_array_free, + .set_size_hint = zstd_array_set_size_hint, + .read = zstd_array_read, + .write = zstd_array_write, + .fill = zstd_array_fill, + .zero = zstd_array_zero, + .blit = zstd_array_blit, + .extents = zstd_array_extents, +}; + +static void register_zstd_array (void) __attribute__((constructor)); + +static void +register_zstd_array (void) +{ + register_allocator (&functions); +} + +#endif /* !HAVE_LIBZSTD */ diff --git a/common/bitmap/Makefile.am b/common/bitmap/Makefile.am new file mode 100644 index 0000000..3d39798 --- /dev/null +++ b/common/bitmap/Makefile.am @@ -0,0 +1,56 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +noinst_LTLIBRARIES = libbitmap.la + +libbitmap_la_SOURCES = \ + bitmap.c \ + bitmap.h \ + $(NULL) +libbitmap_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include \ + $(NULL) +libbitmap_la_CFLAGS = $(WARNINGS_CFLAGS) + +# Unit tests. + +TESTS = test-bitmap +check_PROGRAMS = test-bitmap + +test_bitmap_SOURCES = test-bitmap.c bitmap.c bitmap.h +test_bitmap_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include \ + $(NULL) +test_bitmap_CFLAGS = $(WARNINGS_CFLAGS) diff --git a/common/bitmap/Makefile.in b/common/bitmap/Makefile.in new file mode 100644 index 0000000..be70faf --- /dev/null +++ b/common/bitmap/Makefile.in @@ -0,0 +1,1218 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include + +#include + +#include "bitmap.h" +#include "rounding.h" +#include "nextnonzero.h" + +int +bitmap_resize (struct bitmap *bm, uint64_t new_size) +{ + uint8_t *new_bitmap; + const size_t old_bm_size = bm->size; + uint64_t new_bm_size_u64; + size_t new_bm_size; + + new_bm_size_u64 = DIV_ROUND_UP (new_size, + bm->blksize * UINT64_C(8) / bm->bpb); + if (new_bm_size_u64 > SIZE_MAX) { + nbdkit_error ("bitmap too large for this architecture"); + return -1; + } + new_bm_size = (size_t) new_bm_size_u64; + + if (new_bm_size > 0) { + new_bitmap = realloc (bm->bitmap, new_bm_size); + if (new_bitmap == NULL) { + nbdkit_error ("realloc: %m"); + return -1; + } + } + else { + free (bm->bitmap); + new_bitmap = NULL; + } + bm->bitmap = new_bitmap; + bm->size = new_bm_size; + if (old_bm_size < new_bm_size) + memset (&bm->bitmap[old_bm_size], 0, new_bm_size-old_bm_size); + + nbdkit_debug ("bitmap resized to %zu bytes", new_bm_size); + + return 0; +} + +int64_t +bitmap_next (const struct bitmap *bm, uint64_t blk) +{ + uint64_t limit = bm->size * bm->ibpb; + const uint8_t *p; + + /* Align to the next byte boundary. */ + for (; blk < limit && (blk & (bm->ibpb-1)) != 0; ++blk) { + if (bitmap_get_blk (bm, blk, 0) != 0) + return blk; + } + if (blk == limit) + return -1; + + /* Now we're at a byte boundary we can use a fast string function to + * find the next non-zero byte. + */ + p = &bm->bitmap[blk >> (3 - bm->bitshift)]; + p = (const uint8_t *) next_non_zero ((const char *) p, + &bm->bitmap[bm->size] - p); + if (p == NULL) + return -1; + + /* Now check the non-zero byte to find out which bit (ie. block) is set. */ + blk = (p - bm->bitmap) << (3 - bm->bitshift); + for (; blk < limit; ++blk) { + if (bitmap_get_blk (bm, blk, 0) != 0) + return blk; + } + + /* Should never be reached. */ + abort (); +} diff --git a/common/bitmap/bitmap.h b/common/bitmap/bitmap.h new file mode 100644 index 0000000..c18ae93 --- /dev/null +++ b/common/bitmap/bitmap.h @@ -0,0 +1,183 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* This is a very simple structure for creating a bitmap associated + * with a virtual disk. 1, 2, 4 or 8 bits can be associated with each + * block of the disk. You can choose the number of bits and block + * size when creating the bitmap. Entries in the bitmap are + * initialized to 0. + */ + +#ifndef NBDKIT_BITMAP_H +#define NBDKIT_BITMAP_H + +#include +#include +#include + +#include + +#include "ispowerof2.h" + +/* This is the bitmap structure. */ +struct bitmap { + unsigned blksize; /* Block size. */ + uint8_t bpb; /* Bits per block (1, 2, 4, 8 only). */ + /* bpb = 1 << bitshift ibpb = 8 / bpb + 1 0 8 + 2 1 4 + 4 2 2 + 8 3 1 + */ + uint8_t bitshift, ibpb; + + uint8_t *bitmap; /* The bitmap. */ + size_t size; /* Size of bitmap in bytes. */ +}; + +static inline void __attribute__((__nonnull__ (1))) +bitmap_init (struct bitmap *bm, unsigned blocksize, unsigned bpb) +{ + assert (is_power_of_2 (blocksize)); + bm->blksize = blocksize; + + /* bpb can be 1, 2, 4 or 8 only. */ + bm->bpb = bpb; + switch (bpb) { + case 1: bm->bitshift = 0; break; + case 2: bm->bitshift = 1; break; + case 4: bm->bitshift = 2; break; + case 8: bm->bitshift = 3; break; + default: abort (); + } + bm->ibpb = 8/bpb; + + bm->bitmap = NULL; + bm->size = 0; +} + +/* Only frees the bitmap itself, since it is assumed that the struct + * bitmap is statically allocated. + */ +static inline void +bitmap_free (struct bitmap *bm) +{ + if (bm) + free (bm->bitmap); +} + +/* Resize the bitmap to the virtual disk size in bytes. + * Returns -1 on error, setting nbdkit_error. + */ +extern int bitmap_resize (struct bitmap *bm, uint64_t new_size) + __attribute__((__nonnull__ (1))); + +/* Clear the bitmap (set everything to zero). */ +static inline void __attribute__((__nonnull__ (1))) +bitmap_clear (struct bitmap *bm) +{ + memset (bm->bitmap, 0, bm->size); +} + +/* This macro calculates the byte offset in the bitmap and which + * bit/mask we are addressing within that byte. + * + * bpb blk_offset blk_bit mask + * 1 blk >> 3 0,1,2,...,7 any single bit + * 2 blk >> 2 0, 2, 4 or 6 0x03, 0x0c, 0x30 or 0xc0 + * 4 blk >> 1 0 or 4 0x0f or 0xf0 + * 8 blk >> 0 always 0 always 0xff + */ +#define BITMAP_OFFSET_BIT_MASK(bm, blk) \ + uint64_t blk_offset = (blk) >> (3 - (bm)->bitshift); \ + unsigned blk_bit = (bm)->bpb * ((blk) & ((bm)->ibpb - 1)); \ + unsigned mask = ((1 << (bm)->bpb) - 1) << blk_bit + +/* Return the bit(s) associated with the given block. + * If the request is out of range, returns the default value. + */ +static inline unsigned __attribute__((__nonnull__ (1))) +bitmap_get_blk (const struct bitmap *bm, uint64_t blk, unsigned default_) +{ + BITMAP_OFFSET_BIT_MASK (bm, blk); + + if (blk_offset >= bm->size) { + nbdkit_debug ("bitmap_get: block number is out of range"); + return default_; + } + + return (bm->bitmap[blk_offset] & mask) >> blk_bit; +} + +/* As above but works with virtual disk offset in bytes. */ +static inline unsigned __attribute__((__nonnull__ (1))) +bitmap_get (const struct bitmap *bm, uint64_t offset, unsigned default_) +{ + return bitmap_get_blk (bm, offset / bm->blksize, default_); +} + +/* Set the bit(s) associated with the given block. + * If out of range, it is ignored. + */ +static inline void __attribute__((__nonnull__ (1))) +bitmap_set_blk (const struct bitmap *bm, uint64_t blk, unsigned v) +{ + BITMAP_OFFSET_BIT_MASK (bm, blk); + + if (blk_offset >= bm->size) { + nbdkit_debug ("bitmap_set: block number is out of range"); + return; + } + + bm->bitmap[blk_offset] &= ~mask; + bm->bitmap[blk_offset] |= v << blk_bit; +} + +/* As above bit works with virtual disk offset in bytes. */ +static inline void __attribute__((__nonnull__ (1))) +bitmap_set (const struct bitmap *bm, uint64_t offset, unsigned v) +{ + return bitmap_set_blk (bm, offset / bm->blksize, v); +} + +/* Iterate over blocks represented in the bitmap. */ +#define bitmap_for(bm, /* uint64_t */ blknum) \ + for ((blknum) = 0; (blknum) < (bm)->size * (bm)->ibpb; ++(blknum)) + +/* Find the next non-zero block in the bitmap, starting at ‘blk’. + * Returns -1 if the bitmap is all zeroes from blk to the end of the + * bitmap. + */ +extern int64_t bitmap_next (const struct bitmap *bm, uint64_t blk) + __attribute__((__nonnull__ (1))); + +#endif /* NBDKIT_BITMAP_H */ diff --git a/common/bitmap/test-bitmap.c b/common/bitmap/test-bitmap.c new file mode 100644 index 0000000..69e4d9f --- /dev/null +++ b/common/bitmap/test-bitmap.c @@ -0,0 +1,162 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* Unit tests of the bitmap code. */ + +#include + +#include +#include +#include +#include +#include +#include +#undef NDEBUG /* Keep test strong even for nbdkit built without assertions */ +#include + +#include + +#include "bitmap.h" + +static void +test (int bpb, int blksize) +{ + struct bitmap bm; + const int nr_blocks = 1000; + int blks[] = + { + 1, 2, 3, 10, 12, + 90, 91, 92, 93, 94, 99, + 800, 801, 802, 803, + 902, 903, 905, 907, 911, 913, 917, 919, 923, 929, + 999 + }; + unsigned v, vexp; + size_t i, j; + + printf ("bpb = %d, blksize = %d\n", bpb, blksize); + fflush (stdout); + + bitmap_init (&bm, blksize, bpb); + if (bitmap_resize (&bm, nr_blocks * blksize) == -1) + exit (EXIT_FAILURE); + + /* Set some bits at known block numbers. */ + for (j = 0; j < sizeof blks / sizeof blks[0]; ++j) { + v = (j & 1) == 0 ? 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-0,0 +1,140 @@ +/* This code was taken from parted and indirectly from other sources + * as you can see from the messages below. The license is compatible + * with the permissive license used in nbdkit. - RWMJ 2018-09-16 + */ + +/* + * Dec 5, 2000 Matt Domsch + * - Copied crc32.c from the linux/drivers/net/cipe directory. + * - Now pass seed as an arg + * - changed unsigned long to uint32_t, added #include + * - changed len to be an unsigned long + * - changed crc32val to be a register + * - License remains unchanged! It's still GPL-compatable! + */ + + /* ============================================================= */ + /* COPYRIGHT (C) 1986 Gary S. Brown. You may use this program, or */ + /* code or tables extracted from it, as desired without restriction. */ + /* */ + /* First, the polynomial itself and its table of feedback terms. The */ + /* polynomial is */ + /* X^32+X^26+X^23+X^22+X^16+X^12+X^11+X^10+X^8+X^7+X^5+X^4+X^2+X^1+X^0 */ + /* */ + /* Note that we take it "backwards" and put the highest-order term in */ + /* the lowest-order bit. The X^32 term is "implied"; the LSB is the */ + /* X^31 term, etc. The X^0 term (usually shown as "+1") results in */ + /* the MSB being 1. */ + /* */ + /* Note that the usual hardware shift register implementation, which */ + /* is what we're using (we're merely optimizing it by doing eight-bit */ + /* chunks at a time) shifts bits into the lowest-order term. In our */ + /* implementation, that means shifting towards the right. Why do we */ + /* do it this way? Because the calculated CRC must be transmitted in */ + /* order from highest-order term to lowest-order term. UARTs transmit */ + /* characters in order from LSB to MSB. By storing the CRC this way, */ + /* we hand it to the UART in the order low-byte to high-byte; the UART */ + /* sends each low-bit to hight-bit; and the result is transmission bit */ + /* by bit from highest- to lowest-order term without requiring any bit */ + /* shuffling on our part. Reception works similarly. */ + /* */ + /* The feedback terms table consists of 256, 32-bit entries. Notes: */ + /* */ + /* The table can be generated at runtime if desired; code to do so */ + /* is shown later. It might not be obvious, but the feedback */ + /* terms simply represent the results of eight shift/xor opera- */ + /* tions for all combinations of data and CRC register values. */ + /* */ + /* The values must be right-shifted by eight bits by the "updcrc" */ + /* logic; the shift must be unsigned (bring in zeroes). On some */ + /* hardware you could probably optimize the shift in assembler by */ + /* using byte-swap instructions. */ + /* polynomial $edb88320 */ + /* */ + /* -------------------------------------------------------------------- */ + +#include + +#include +#include + +#include "efi-crc32.h" + +static const uint32_t crc32_tab[] = { + 0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, 0x076dc419L, + 0x706af48fL, 0xe963a535L, 0x9e6495a3L, 0x0edb8832L, 0x79dcb8a4L, + 0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L, + 0x90bf1d91L, 0x1db71064L, 0x6ab020f2L, 0xf3b97148L, 0x84be41deL, + 0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L, 0x83d385c7L, 0x136c9856L, + 0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL, 0x14015c4fL, 0x63066cd9L, + 0xfa0f3d63L, 0x8d080df5L, 0x3b6e20c8L, 0x4c69105eL, 0xd56041e4L, + 0xa2677172L, 0x3c03e4d1L, 0x4b04d447L, 0xd20d85fdL, 0xa50ab56bL, + 0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L, 0xacbcf940L, 0x32d86ce3L, + 0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L, 0x26d930acL, 0x51de003aL, + 0xc8d75180L, 0xbfd06116L, 0x21b4f4b5L, 0x56b3c423L, 0xcfba9599L, + 0xb8bda50fL, 0x2802b89eL, 0x5f058808L, 0xc60cd9b2L, 0xb10be924L, + 0x2f6f7c87L, 0x58684c11L, 0xc1611dabL, 0xb6662d3dL, 0x76dc4190L, + 0x01db7106L, 0x98d220bcL, 0xefd5102aL, 0x71b18589L, 0x06b6b51fL, + 0x9fbfe4a5L, 0xe8b8d433L, 0x7807c9a2L, 0x0f00f934L, 0x9609a88eL, + 0xe10e9818L, 0x7f6a0dbbL, 0x086d3d2dL, 0x91646c97L, 0xe6635c01L, + 0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L, 0xf262004eL, 0x6c0695edL, + 0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L, 0x65b0d9c6L, 0x12b7e950L, + 0x8bbeb8eaL, 0xfcb9887cL, 0x62dd1ddfL, 0x15da2d49L, 0x8cd37cf3L, + 0xfbd44c65L, 0x4db26158L, 0x3ab551ceL, 0xa3bc0074L, 0xd4bb30e2L, + 0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL, 0xd3d6f4fbL, 0x4369e96aL, + 0x346ed9fcL, 0xad678846L, 0xda60b8d0L, 0x44042d73L, 0x33031de5L, + 0xaa0a4c5fL, 0xdd0d7cc9L, 0x5005713cL, 0x270241aaL, 0xbe0b1010L, + 0xc90c2086L, 0x5768b525L, 0x206f85b3L, 0xb966d409L, 0xce61e49fL, + 0x5edef90eL, 0x29d9c998L, 0xb0d09822L, 0xc7d7a8b4L, 0x59b33d17L, + 0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL, 0xedb88320L, 0x9abfb3b6L, + 0x03b6e20cL, 0x74b1d29aL, 0xead54739L, 0x9dd277afL, 0x04db2615L, + 0x73dc1683L, 0xe3630b12L, 0x94643b84L, 0x0d6d6a3eL, 0x7a6a5aa8L, + 0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L, 0x7d079eb1L, 0xf00f9344L, + 0x8708a3d2L, 0x1e01f268L, 0x6906c2feL, 0xf762575dL, 0x806567cbL, + 0x196c3671L, 0x6e6b06e7L, 0xfed41b76L, 0x89d32be0L, 0x10da7a5aL, + 0x67dd4accL, 0xf9b9df6fL, 0x8ebeeff9L, 0x17b7be43L, 0x60b08ed5L, + 0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L, 0x4fdff252L, 0xd1bb67f1L, + 0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL, 0xd80d2bdaL, 0xaf0a1b4cL, + 0x36034af6L, 0x41047a60L, 0xdf60efc3L, 0xa867df55L, 0x316e8eefL, + 0x4669be79L, 0xcb61b38cL, 0xbc66831aL, 0x256fd2a0L, 0x5268e236L, + 0xcc0c7795L, 0xbb0b4703L, 0x220216b9L, 0x5505262fL, 0xc5ba3bbeL, + 0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L, 0xc2d7ffa7L, 0xb5d0cf31L, + 0x2cd99e8bL, 0x5bdeae1dL, 0x9b64c2b0L, 0xec63f226L, 0x756aa39cL, + 0x026d930aL, 0x9c0906a9L, 0xeb0e363fL, 0x72076785L, 0x05005713L, + 0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL, 0x0cb61b38L, 0x92d28e9bL, + 0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L, 0x86d3d2d4L, 0xf1d4e242L, + 0x68ddb3f8L, 0x1fda836eL, 0x81be16cdL, 0xf6b9265bL, 0x6fb077e1L, + 0x18b74777L, 0x88085ae6L, 0xff0f6a70L, 0x66063bcaL, 0x11010b5cL, + 0x8f659effL, 0xf862ae69L, 0x616bffd3L, 0x166ccf45L, 0xa00ae278L, + 0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L, 0xa7672661L, 0xd06016f7L, + 0x4969474dL, 0x3e6e77dbL, 0xaed16a4aL, 0xd9d65adcL, 0x40df0b66L, + 0x37d83bf0L, 0xa9bcae53L, 0xdebb9ec5L, 0x47b2cf7fL, 0x30b5ffe9L, + 0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L, 0xbad03605L, + 0xcdd70693L, 0x54de5729L, 0x23d967bfL, 0xb3667a2eL, 0xc4614ab8L, + 0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL, + 0x2d02ef8dL + }; + +/* Return a 32-bit CRC of the contents of the buffer. */ + +static uint32_t +_efi_crc32 (const void *buf, size_t len, uint32_t seed) +{ + size_t i; + uint32_t crc32val; + const unsigned char *s = buf; + + crc32val = seed; + for (i = 0; i < len; i++) { + crc32val = + crc32_tab[(crc32val ^ s[i]) & 0xff] ^ + (crc32val >> 8); + } + return crc32val; +} + +uint32_t +efi_crc32 (const void *buf, size_t len) +{ + return _efi_crc32 (buf, len, ~0L) ^ ~0L; +} diff --git a/common/gpt/efi-crc32.h b/common/gpt/efi-crc32.h new file mode 100644 index 0000000..e0332ea --- /dev/null +++ b/common/gpt/efi-crc32.h @@ -0,0 +1,41 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_EFI_CRC32_H +#define NBDKIT_EFI_CRC32_H + +#include + +extern uint32_t efi_crc32 (const void *buf, size_t len) + __attribute__((__nonnull__ (1))); + +#endif /* NBDKIT_EFI_CRC32_H */ diff --git a/common/gpt/gpt.h b/common/gpt/gpt.h new file mode 100644 index 0000000..3935dcf --- /dev/null +++ b/common/gpt/gpt.h @@ -0,0 +1,79 @@ +/* nbdkit + * Copyright (C) 2018-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_GPT_H +#define NBDKIT_GPT_H + +struct gpt_header { + char signature[8]; + char revision[4]; + uint32_t header_size; + uint32_t crc; + uint32_t reserved; + uint64_t current_lba; + uint64_t backup_lba; + uint64_t first_usable_lba; + uint64_t last_usable_lba; + char guid[16]; + uint64_t partition_entries_lba; + uint32_t nr_partition_entries; + uint32_t size_partition_entry; + uint32_t crc_partitions; +}; + +#define GPT_SIGNATURE "EFI PART" +#define GPT_REVISION "\0\0\1\0" /* revision 1.0 */ + +struct gpt_entry { + char partition_type_guid[16]; + char unique_guid[16]; + uint64_t first_lba; + uint64_t last_lba; + uint64_t attributes; + char name[72]; /* UTF-16LE */ +}; + +/* GPT_MIN_PARTITIONS is the minimum number of partitions and is + * defined by the UEFI standard (assuming 512 byte sector size). + * + * In plugins such as the partitioning plugin, if we are requested to + * allocate more than GPT_MIN_PARTITIONS then we increase the + * partition table in chunks of this size. Note that clients may not + * support > GPT_MIN_PARTITIONS. + * + * GPT_PT_ENTRY_SIZE is the minimum specified by the UEFI spec, but + * increasing it is not useful. + */ +#define GPT_MIN_PARTITIONS 128 +#define GPT_PT_ENTRY_SIZE 128 + +#endif /* NBDKIT_GPT_H */ diff --git a/common/include/Makefile.am b/common/include/Makefile.am new file mode 100644 index 0000000..151c2ae --- /dev/null +++ b/common/include/Makefile.am @@ -0,0 +1,112 @@ +# nbdkit +# Copyright (C) 2018-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +# These headers contain only common code shared by the core server, +# plugins and/or filters. They are not installed. +EXTRA_DIST = \ + ascii-ctype.h \ + ascii-string.h \ + byte-swapping.h \ + exit-with-parent.h \ + get-current-dir-name.h \ + isaligned.h \ + ispowerof2.h \ + iszero.h \ + minmax.h \ + nextnonzero.h \ + random.h \ + rounding.h \ + tvdiff.h \ + unix-path-max.h \ + $(NULL) + +# Unit tests. + +TESTS = \ + test-ascii-ctype \ + test-ascii-string \ + test-byte-swapping \ + test-current-dir-name \ + test-isaligned \ + test-ispowerof2 \ + test-iszero \ + test-minmax \ + test-nextnonzero \ + test-random \ + test-tvdiff \ + $(NULL) +check_PROGRAMS = $(TESTS) + +test_ascii_ctype_SOURCES = test-ascii-ctype.c ascii-ctype.h +test_ascii_ctype_CPPFLAGS = -I$(srcdir) +test_ascii_ctype_CFLAGS = $(WARNINGS_CFLAGS) + +test_ascii_string_SOURCES = test-ascii-string.c ascii-string.h +test_ascii_string_CPPFLAGS = -I$(srcdir) +test_ascii_string_CFLAGS = $(WARNINGS_CFLAGS) + +test_byte_swapping_SOURCES = test-byte-swapping.c byte-swapping.h +test_byte_swapping_CPPFLAGS = -I$(srcdir) +test_byte_swapping_CFLAGS = $(WARNINGS_CFLAGS) + +test_current_dir_name_SOURCES = test-current-dir-name.c get-current-dir-name.h +test_current_dir_name_CPPFLAGS = -I$(srcdir) +test_current_dir_name_CFLAGS = $(WARNINGS_CFLAGS) + +test_isaligned_SOURCES = test-isaligned.c isaligned.h +test_isaligned_CPPFLAGS = -I$(srcdir) +test_isaligned_CFLAGS = $(WARNINGS_CFLAGS) + +test_ispowerof2_SOURCES = test-ispowerof2.c ispowerof2.h +test_ispowerof2_CPPFLAGS = -I$(srcdir) +test_ispowerof2_CFLAGS = $(WARNINGS_CFLAGS) + +test_iszero_SOURCES = test-iszero.c iszero.h +test_iszero_CPPFLAGS = -I$(srcdir) +test_iszero_CFLAGS = $(WARNINGS_CFLAGS) + +test_minmax_SOURCES = test-minmax.c minmax.h +test_minmax_CPPFLAGS = -I$(srcdir) +test_minmax_CFLAGS = $(WARNINGS_CFLAGS) + +test_nextnonzero_SOURCES = test-nextnonzero.c nextnonzero.h +test_nextnonzero_CPPFLAGS = -I$(srcdir) +test_nextnonzero_CFLAGS = $(WARNINGS_CFLAGS) + +test_random_SOURCES = test-random.c random.h +test_random_CPPFLAGS = -I$(srcdir) +test_random_CFLAGS = $(WARNINGS_CFLAGS) + +test_tvdiff_SOURCES = test-tvdiff.c tvdiff.h +test_tvdiff_CPPFLAGS = -I$(srcdir) +test_tvdiff_CFLAGS = $(WARNINGS_CFLAGS) diff --git a/common/include/Makefile.in b/common/include/Makefile.in new file mode 100644 index 0000000..0612fae --- /dev/null +++ b/common/include/Makefile.in @@ -0,0 +1,1584 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# nbdkit +# Copyright (C) 2013-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. +VPATH = @srcdir@ +am__is_gnu_make = { \ + if test -z '$(MAKELEVEL)'; then \ + false; \ + elif test -n '$(MAKE_HOST)'; then \ + true; \ + elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \ + true; \ + else \ + false; \ + fi; \ +} +am__make_running_with_option = \ + case $${target_option-} in \ + ?) ;; \ + *) echo "am__make_running_with_option: internal error: invalid" \ + "target option '$${target_option-}' specified" >&2; \ + exit 1;; \ + esac; \ + 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Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/common/include/ascii-ctype.h b/common/include/ascii-ctype.h new file mode 100644 index 0000000..8414a3f --- /dev/null +++ b/common/include/ascii-ctype.h @@ -0,0 +1,72 @@ +/* nbdkit + * Copyright (C) 2013-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* Normal ctype functions are affected by the current locale. For + * example isupper() might recognize Ä in some but not all locales. + * These functions match only 7 bit ASCII characters. + */ + +#ifndef NBDKIT_ASCII_CTYPE_H +#define NBDKIT_ASCII_CTYPE_H + +#define ascii_isalnum(c) (ascii_isalpha (c) || ascii_isdigit (c)) + +#define ascii_isalpha(c) \ + (((c) >= 'a' && (c) <= 'z') || ((c) >= 'A' && (c) <= 'Z')) + +#define ascii_isdigit(c) \ + ((c) >= '0' && (c) <= '9') + +#define ascii_isspace(c) \ + ((c) == '\t' || (c) == '\n' || (c) == '\f' || (c) == '\r' || (c) == ' ') + +#define ascii_isupper(c) \ + ((c) >= 'A' && (c) <= 'Z') + +#define ascii_islower(c) \ + ((c) >= 'a' && (c) <= 'z') + +#define ascii_isxdigit(c) \ + ((c) == '0' || (c) == '1' || (c) == '2' || (c) == '3' || (c) == '4' || \ + (c) == '5' || (c) == '6' || (c) == '7' || (c) == '8' || (c) == '9' || \ + (c) == 'a' || (c) == 'b' || (c) == 'c' || \ + (c) == 'd' || (c) == 'e' || (c) == 'f' || \ + (c) == 'A' || (c) == 'B' || (c) == 'C' || \ + (c) == 'D' || (c) == 'E' || (c) == 'F') + +#define ascii_tolower(c) \ + (ascii_isupper ((c)) ? (c) + 32 : (c)) + +#define ascii_toupper(c) \ + (ascii_islower ((c)) ? (c) - 32 : (c)) + +#endif /* NBDKIT_ASCII_CTYPE_H */ diff --git a/common/include/ascii-string.h b/common/include/ascii-string.h new file mode 100644 index 0000000..0a60d5f --- /dev/null +++ b/common/include/ascii-string.h @@ -0,0 +1,77 @@ +/* nbdkit + * Copyright (C) 2013-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* Case insensitive string comparison functions (like strcasecmp, + * strncasecmp) which work correctly in any locale. They can only be + * used for comparison when one or both strings is 7 bit ASCII. + */ + +#ifndef NBDKIT_ASCII_STRING_H +#define NBDKIT_ASCII_STRING_H + +#include "ascii-ctype.h" + +static inline int +ascii_strcasecmp (const char *s1, const char *s2) +{ + const unsigned char *us1 = (const unsigned char *)s1; + const unsigned char *us2 = (const unsigned char *)s2; + + while (ascii_tolower (*us1) == ascii_tolower (*us2)) { + if (*us1++ == '\0') + return 0; + us2++; + } + + return ascii_tolower (*us1) - ascii_tolower (*us2); +} + +static inline int +ascii_strncasecmp (const char *s1, const char *s2, size_t n) +{ + if (n != 0) { + const unsigned char *us1 = (const unsigned char *)s1; + const unsigned char *us2 = (const unsigned char *)s2; + + do { + if (ascii_tolower (*us1) != ascii_tolower (*us2)) + return ascii_tolower (*us1) - ascii_tolower (*us2); + if (*us1++ == '\0') + break; + us2++; + } while (--n != 0); + } + + return 0; +} + +#endif /* NBDKIT_ASCII_STRING_H */ diff --git a/common/include/byte-swapping.h b/common/include/byte-swapping.h new file mode 100644 index 0000000..c53fba2 --- /dev/null +++ b/common/include/byte-swapping.h @@ -0,0 +1,130 @@ +/* nbdkit + * Copyright (C) 2013-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* The job of this header is to define macros (or functions) called + * things like 'htobe32' and 'le64toh' which byte swap N-bit integers + * between host representation, and little and big endian. Also + * bswap_16, bswap_32 and bswap_64 which simply swap endianness. + * + * The core code and plugins in nbdkit uses these names and relies on + * this header to provide the platform-specific implementation. On + * GNU/Linux these are defined in and but + * other platforms have other requirements. + */ + +#ifndef NBDKIT_BYTE_SWAPPING_H +#define NBDKIT_BYTE_SWAPPING_H + +#ifdef HAVE_BYTESWAP_H +#include +#endif + +#ifdef HAVE_ENDIAN_H +#include +#endif + +#ifdef HAVE_SYS_ENDIAN_H +#include +#endif + +#ifdef __HAIKU__ +#include +#define htobe16(x) B_HOST_TO_BENDIAN_INT16(x) +#define htole16(x) B_HOST_TO_LENDIAN_INT16(x) +#define be16toh(x) B_BENDIAN_TO_HOST_INT16(x) +#define le16toh(x) B_LENDIAN_TO_HOST_INT16(x) + +#define htobe32(x) B_HOST_TO_BENDIAN_INT32(x) +#define htole32(x) B_HOST_TO_LENDIAN_INT32(x) +#define be32toh(x) B_BENDIAN_TO_HOST_INT32(x) +#define le32toh(x) B_LENDIAN_TO_HOST_INT32(x) + +#define htobe64(x) B_HOST_TO_BENDIAN_INT64(x) +#define htole64(x) B_HOST_TO_LENDIAN_INT64(x) +#define be64toh(x) B_BENDIAN_TO_HOST_INT64(x) +#define le64toh(x) B_LENDIAN_TO_HOST_INT64(x) +#endif + +/* If we didn't define bswap_16, bswap_32 and bswap_64 already above, + * create macros. GCC >= 4.8 and Clang have builtins. + */ +#ifndef bswap_16 +#define bswap_16 __builtin_bswap16 +#endif + +#ifndef bswap_32 +#define bswap_32 __builtin_bswap32 +#endif + +#ifndef bswap_64 +#define bswap_64 __builtin_bswap64 +#endif + +/* If we didn't define htobe* above then define them in terms of + * bswap_* macros. + */ +#ifndef htobe32 +# ifndef WORDS_BIGENDIAN /* little endian */ +# define htobe16(x) bswap_16 (x) +# define htole16(x) (x) +# define be16toh(x) bswap_16 (x) +# define le16toh(x) (x) + +# define htobe32(x) bswap_32 (x) +# define htole32(x) (x) +# define be32toh(x) bswap_32 (x) +# define le32toh(x) (x) + +# define htobe64(x) bswap_64 (x) +# define htole64(x) (x) +# define be64toh(x) bswap_64 (x) +# define le64toh(x) (x) + +# else /* big endian */ +# define htobe16(x) (x) +# define htole16(x) bswap_16 (x) +# define be16toh(x) (x) +# define le16toh(x) bswap_16 (x) + +# define htobe32(x) (x) +# define htole32(x) bswap_32 (x) +# define be32toh(x) (x) +# define le32toh(x) bswap_32 (x) + +# define htobe64(x) (x) +# define htole64(x) bswap_64 (x) +# define be64toh(x) (x) +# define le64toh(x) bswap_64 (x) +# endif +#endif + +#endif /* NBDKIT_BYTE_SWAPPING_H */ diff --git a/common/include/exit-with-parent.h b/common/include/exit-with-parent.h new file mode 100644 index 0000000..ff56ad7 --- /dev/null +++ b/common/include/exit-with-parent.h @@ -0,0 +1,79 @@ +/* nbdkit + * Copyright (C) 2013-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* Implement the --exit-with-parent feature on operating systems which + * support it. + */ + +#ifndef NBDKIT_EXIT_WITH_PARENT_H +#define NBDKIT_EXIT_WITH_PARENT_H + +#include + +#include + +#ifdef HAVE_SYS_PRCTL_H +#include +#endif + +#ifdef HAVE_SYS_PROCCTL_H +#include +#endif + +#if defined(HAVE_SYS_PRCTL_H) && defined(PR_SET_PDEATHSIG) + +/* For Linux >= 2.1.57. */ + +static inline int +set_exit_with_parent (void) +{ + return prctl (PR_SET_PDEATHSIG, SIGTERM); +} + +#define HAVE_EXIT_WITH_PARENT 1 + +#elif defined(HAVE_SYS_PROCCTL_H) && defined(PROC_PDEATHSIG_CTL) + +/* For FreeBSD >= 11.2 */ + +static inline int +set_exit_with_parent (void) +{ + const int sig = SIGTERM; + return procctl (P_PID, 0, PROC_PDEATHSIG_CTL, (void*) &sig); +} + +#define HAVE_EXIT_WITH_PARENT 1 + +#endif + +#endif /* NBDKIT_INTERNAL_H */ diff --git a/common/include/get-current-dir-name.h b/common/include/get-current-dir-name.h new file mode 100644 index 0000000..09c6a0f --- /dev/null +++ b/common/include/get-current-dir-name.h @@ -0,0 +1,61 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* Implement get_current_dir_name(3) on platforms which don't have it. */ + +#ifndef NBDKIT_GET_CURRENT_DIR_NAME_H +#define NBDKIT_GET_CURRENT_DIR_NAME_H + +#include + +#ifndef HAVE_GET_CURRENT_DIR_NAME + +#include +#include +#include + +static inline char * +get_current_dir_name (void) +{ + char *ret; + + ret = malloc (PATH_MAX); + if (ret == NULL) + return NULL; + ret = getcwd (ret, PATH_MAX); + if (ret == NULL) + return NULL; + return realloc (ret, strlen (ret) + 1); +} +#endif + +#endif /* NBDKIT_GET_CURRENT_DIR_NAME_H */ diff --git a/common/include/isaligned.h b/common/include/isaligned.h new file mode 100644 index 0000000..2350406 --- /dev/null +++ b/common/include/isaligned.h @@ -0,0 +1,47 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_ISALIGNED_H +#define NBDKIT_ISALIGNED_H + +#include + +#include "ispowerof2.h" + +/* Return true if size is a multiple of align. align must be power of 2. + */ +#define IS_ALIGNED(size, align) ({ \ + assert (is_power_of_2 ((align))); \ + !((size) & ((align) - 1)); \ +}) + +#endif /* NBDKIT_ISALIGNED_H */ diff --git a/common/include/ispowerof2.h b/common/include/ispowerof2.h new file mode 100644 index 0000000..b9a5cc7 --- /dev/null +++ b/common/include/ispowerof2.h @@ -0,0 +1,49 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_ISPOWEROF2_H +#define NBDKIT_ISPOWEROF2_H + +#include + +/* Returns true if v is a power of 2. + * + * Uses the algorithm described at + * http://graphics.stanford.edu/~seander/bithacks.html#DetermineIfPowerOf2 + */ +static inline bool +is_power_of_2 (unsigned long v) +{ + return v && ((v & (v - 1)) == 0); +} + +#endif /* NBDKIT_ISPOWEROF2_H */ diff --git a/common/include/iszero.h b/common/include/iszero.h new file mode 100644 index 0000000..7fdbb52 --- /dev/null +++ b/common/include/iszero.h @@ -0,0 +1,63 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_ISZERO_H +#define NBDKIT_ISZERO_H + +#include +#include + +/* Return true iff the buffer is all zero bytes. + * + * The clever approach here was suggested by Eric Blake. See: + * https://www.redhat.com/archives/libguestfs/2017-April/msg00171.html + * https://rusty.ozlabs.org/?p=560 + * + * See also: + * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69908 + */ +static inline bool __attribute__((__nonnull__ (1))) +is_zero (const char *buffer, size_t size) +{ + size_t i; + const size_t limit = size < 16 ? size : 16; + + for (i = 0; i < limit; ++i) + if (buffer[i]) + return false; + if (size != limit) + return ! memcmp (buffer, buffer + 16, size - 16); + + return true; +} + +#endif /* NBDKIT_ISZERO_H */ diff --git a/common/include/minmax.h b/common/include/minmax.h new file mode 100644 index 0000000..d3e667e --- /dev/null +++ b/common/include/minmax.h @@ -0,0 +1,79 @@ +/* nbdkit + * Copyright (C) 2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_MINMAX_H +#define NBDKIT_MINMAX_H + +#include + +/* Safe MIN and MAX macros. These evaluate each parameter once. They + * work for any comparable type. + * + * __auto_type is a GCC extension, added in GCC 4.9 in 2014, and to + * Clang in 2015. The fallback uses typeof which was added a very + * long time ago. Note that OpenBSD lacks __auto_type so the fallback + * is required. + */ + +#ifdef HAVE_AUTO_TYPE + +#undef MIN +#define MIN(x, y) ({ \ + __auto_type _x = (x); \ + __auto_type _y = (y); \ + _x < _y ? _x : _y; \ + }) +#undef MAX +#define MAX(x, y) ({ \ + __auto_type _x = (x); \ + __auto_type _y = (y); \ + _x > _y ? _x : _y; \ + }) + +#else + +#undef MIN +#define MIN(x, y) ({ \ + typeof (x) _x = (x); \ + typeof (y) _y = (y); \ + _x < _y ? _x : _y; \ + }) +#undef MAX +#define MAX(x, y) ({ \ + typeof (x) _x = (x); \ + typeof (y) _y = (y); \ + _x > _y ? _x : _y; \ + }) + +#endif + +#endif /* NBDKIT_MINMAX_H */ diff --git a/common/include/nextnonzero.h b/common/include/nextnonzero.h new file mode 100644 index 0000000..cf4ca3c --- /dev/null +++ b/common/include/nextnonzero.h @@ -0,0 +1,58 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_NEXTNONZERO_H +#define NBDKIT_NEXTNONZERO_H + +/* Given a byte buffer, return a pointer to the first non-zero byte, + * or return NULL if we reach the end of the buffer. + * + * XXX: Even with -O3 -mavx2, gcc 8.2.1 does a terrible job with this + * loop, compiling it completely naively. QEMU has an AVX2 + * implementation of a similar loop. + * + * See also: + * https://sourceware.org/bugzilla/show_bug.cgi?id=19920 + * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69908 + */ +static inline const char * __attribute__((__nonnull__ (1))) +next_non_zero (const char *buffer, size_t size) +{ + size_t i; + + for (i = 0; i < size; ++i) + if (buffer[i] != 0) + return &buffer[i]; + return NULL; +} + +#endif /* NBDKIT_NEXTNONZERO_H */ diff --git a/common/include/random.h b/common/include/random.h new file mode 100644 index 0000000..58b6219 --- /dev/null +++ b/common/include/random.h @@ -0,0 +1,106 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_RANDOM_H +#define NBDKIT_RANDOM_H + +#include + +/* Generate pseudo-random numbers, quickly, with explicit state. + * + * This is based on the xoshiro/xoroshiro generators by David Blackman + * and Sebastiano Vigna (http://xoshiro.di.unimi.it/). Specifically + * the main PRNG is ‘xoshiro256** 1.0’, and the seed generator is + * ‘splitmix64’. + * + * This does _NOT_ generate cryptographically secure random numbers + * (CSPRNG) and so should not be used when cryptography or security is + * required - use gcrypt if you need those. + */ + +/* You can seed ‘struct random_state’ by setting the s[] elements + * directly - but you must NOT set them all to zero. Alternately if + * you have a 64 bit seed, you can call xsrandom to initialize the + * state. + */ +struct random_state { + uint64_t s[4]; +}; + +static inline uint64_t +snext (uint64_t *seed) +{ + uint64_t z = (*seed += 0x9e3779b97f4a7c15); + z = (z ^ (z >> 30)) * 0xbf58476d1ce4e5b9; + z = (z ^ (z >> 27)) * 0x94d049bb133111eb; + return z ^ (z >> 31); +} + +/* Seed the random state from a 64 bit seed. */ +static inline void __attribute__((__nonnull__ (2))) +xsrandom (uint64_t seed, struct random_state *state) +{ + state->s[0] = snext (&seed); + state->s[1] = snext (&seed); + state->s[2] = snext (&seed); + state->s[3] = snext (&seed); +} + +static inline uint64_t +rotl (const uint64_t x, int k) +{ + /* RWMJ: I checked and GCC 10 emits either ‘rol’ or ‘ror’ correctly + * for this code. + */ + return (x << k) | (x >> (64 - k)); +} + +/* Returns 64 random bits. Updates the state. */ +static inline uint64_t __attribute__((__nonnull__ (1))) +xrandom (struct random_state *state) +{ + const uint64_t result_starstar = rotl (state->s[1] * 5, 7) * 9; + const uint64_t t = state->s[1] << 17; + + state->s[2] ^= state->s[0]; + state->s[3] ^= state->s[1]; + state->s[1] ^= state->s[2]; + state->s[0] ^= state->s[3]; + + state->s[2] ^= t; + + state->s[3] = rotl (state->s[3], 45); + + return result_starstar; +} + +#endif /* NBDKIT_RANDOM_H */ diff --git a/common/include/rounding.h b/common/include/rounding.h new file mode 100644 index 0000000..744964e --- /dev/null +++ b/common/include/rounding.h @@ -0,0 +1,57 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_ROUNDING_H +#define NBDKIT_ROUNDING_H + +#include + +#include "ispowerof2.h" + +/* Round up i to next multiple of n (n must be a power of 2). + */ +#define ROUND_UP(i, n) ({ \ + assert (is_power_of_2 (n)); \ + ((i) + (n) - 1) & -((typeof (i))(n)); \ +}) + +/* Round down i to next multiple of n (n must be a power of 2). + */ +#define ROUND_DOWN(i, n) ({ \ + assert (is_power_of_2 (n)); \ + (i) & -((typeof (i))(n)); \ +}) + +/* Return n / d, rounding the result up to the next integer. */ +#define DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d)) + +#endif /* NBDKIT_ROUNDING_H */ diff --git a/common/include/test-ascii-ctype.c b/common/include/test-ascii-ctype.c new file mode 100644 index 0000000..4fbb025 --- /dev/null +++ b/common/include/test-ascii-ctype.c @@ -0,0 +1,88 @@ +/* nbdkit + * Copyright (C) 2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#undef NDEBUG /* Keep test strong even for nbdkit built without assertions */ +#include + +#include "ascii-ctype.h" + +int +main (void) +{ + assert (ascii_isspace (' ')); + assert (ascii_isspace ('\t')); + assert (ascii_isspace ('\n')); + assert (! ascii_isspace ('a')); + + assert (ascii_isalpha ('a')); + assert (ascii_isalpha ('Z')); + assert (ascii_isalpha ('z')); + assert (! ascii_isalpha (' ')); + assert (! ascii_isalpha ('0')); + { const char *s = "Ä"; assert (! ascii_isalpha (s[0])); } + { const char *s = "®"; assert (! ascii_isalpha (s[0])); } + + assert (ascii_isdigit ('0')); + assert (ascii_isdigit ('9')); + { const char *s = "Ø"; assert (! ascii_isdigit (s[0])); } /* U+00D8 */ + { const char *s = "９"; assert (! ascii_isdigit (s[0])); } /* U+FF19 */ + + assert (ascii_islower ('a')); + assert (ascii_islower ('z')); + assert (! ascii_islower ('Z')); + { const char *s = "Ä"; assert (! ascii_islower (s[0])); } + + assert (ascii_isupper ('A')); + assert (ascii_isupper ('Z')); + assert (! ascii_isupper ('z')); + { const char *s = "Ä"; assert (! ascii_isupper (s[0])); } + + assert (ascii_tolower ('A') == 'a'); + assert (ascii_tolower ('Z') == 'z'); + assert (ascii_tolower ('a') == 'a'); + assert (ascii_tolower ('z') == 'z'); + assert (ascii_tolower ('0') == '0'); + { const char *s = "Ä"; assert (ascii_tolower (s[0]) == s[0]); } + + assert (ascii_toupper ('a') == 'A'); + assert (ascii_toupper ('z') == 'Z'); + assert (ascii_toupper ('A') == 'A'); + assert (ascii_toupper ('Z') == 'Z'); + assert (ascii_toupper ('0') == '0'); + { const char *s = "à"; assert (ascii_toupper (s[0]) == s[0]); } + + exit (EXIT_SUCCESS); +} diff --git a/common/include/test-ascii-string.c b/common/include/test-ascii-string.c new file mode 100644 index 0000000..35308f2 --- /dev/null +++ b/common/include/test-ascii-string.c @@ -0,0 +1,80 @@ +/* nbdkit + * Copyright (C) 2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#undef NDEBUG /* Keep test strong even for nbdkit built without assertions */ +#include + +#include "ascii-string.h" + +int +main (void) +{ + assert (ascii_strcasecmp ("", "") == 0); + assert (ascii_strcasecmp ("a", "a") == 0); + assert (ascii_strcasecmp ("abc", "abc") == 0); + assert (ascii_strcasecmp ("a", "b") < 0); + assert (ascii_strcasecmp ("b", "a") > 0); + assert (ascii_strcasecmp ("aa", "a") > 0); + + /* Second string contains Turkish dotless lowercase letter ı. */ + assert (ascii_strcasecmp ("hi", "hı") != 0); + + /* Check that we got our rounding behaviour correct. */ + assert (ascii_strcasecmp ("\x1", "\x7f") < 0); + assert (ascii_strcasecmp ("\x1", "\x80") < 0); + assert (ascii_strcasecmp ("\x1", "\x81") < 0); + assert (ascii_strcasecmp ("\x1", "\xff") < 0); + + assert (ascii_strncasecmp ("", "", 0) == 0); + assert (ascii_strncasecmp ("a", "a", 1) == 0); + assert (ascii_strncasecmp ("abc", "abc", 3) == 0); + assert (ascii_strncasecmp ("abc", "def", 0) == 0); + assert (ascii_strncasecmp ("abc", "abd", 2) == 0); + assert (ascii_strncasecmp ("a", "b", 1) < 0); + assert (ascii_strncasecmp ("b", "a", 1) > 0); + assert (ascii_strncasecmp ("aa", "a", 2) > 0); + assert (ascii_strncasecmp ("aa", "a", 100) > 0); + + assert (ascii_strncasecmp ("hi", "hı", 1) == 0); + assert (ascii_strncasecmp ("hi", "hı", 2) != 0); + + assert (ascii_strncasecmp ("\x1", "\x7f", 1) < 0); + assert (ascii_strncasecmp ("\x1", "\x80", 1) < 0); + assert (ascii_strncasecmp ("\x1", "\x81", 1) < 0); + assert (ascii_strncasecmp ("\x1", "\xff", 1) < 0); + + exit (EXIT_SUCCESS); +} diff --git a/common/include/test-byte-swapping.c b/common/include/test-byte-swapping.c new file mode 100644 index 0000000..fa62ecf --- /dev/null +++ b/common/include/test-byte-swapping.c @@ -0,0 +1,108 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#undef NDEBUG /* Keep test strong even for nbdkit built without assertions */ +#include + +#include "byte-swapping.h" + +/* Little-endian test strings. */ +static uint8_t le16[] = { 0x34, 0x12 }; +static uint8_t le32[] = { 0x78, 0x56, 0x34, 0x12 }; +static uint8_t le64[] = { 0xf0, 0xde, 0xbc, 0x9a, 0x78, 0x56, 0x34, 0x12 }; + +/* Big-endian test strings. */ +static uint8_t be16[] = { 0x12, 0x34 }; +static uint8_t be32[] = { 0x12, 0x34, 0x56, 0x78 }; +static uint8_t be64[] = { 0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xf0 }; + +int +main (void) +{ + uint16_t i16; + uint32_t i32; + uint64_t i64; + + memcpy (&i16, le16, 2); + assert (le16toh (i16) == 0x1234); + memcpy (&i32, le32, 4); + assert (le32toh (i32) == 0x12345678); + memcpy (&i64, le64, 8); + assert (le64toh (i64) == 0x123456789abcdef0); + + memcpy (&i16, be16, 2); + assert (be16toh (i16) == 0x1234); + memcpy (&i32, be32, 4); + assert (be32toh (i32) == 0x12345678); + memcpy (&i64, be64, 8); + assert (be64toh (i64) == 0x123456789abcdef0); + + i16 = htole16 (0x1234); + assert (memcmp (&i16, le16, 2) == 0); + i32 = htole32 (0x12345678); + assert (memcmp (&i32, le32, 4) == 0); + i64 = htole64 (0x123456789abcdef0); + assert (memcmp (&i64, le64, 8) == 0); + + i16 = htobe16 (0x1234); + assert (memcmp (&i16, be16, 2) == 0); + i32 = htobe32 (0x12345678); + assert (memcmp (&i32, be32, 4) == 0); + i64 = htobe64 (0x123456789abcdef0); + assert (memcmp (&i64, be64, 8) == 0); + + memcpy (&i16, le16, 2); + i16 = bswap_16 (i16); + assert (memcmp (&i16, be16, 2) == 0); + i16 = bswap_16 (i16); + assert (memcmp (&i16, le16, 2) == 0); + + memcpy (&i32, le32, 4); + i32 = bswap_32 (i32); + assert (memcmp (&i32, be32, 4) == 0); + i32 = bswap_32 (i32); + assert (memcmp (&i32, le32, 4) == 0); + + memcpy (&i64, le64, 8); + i64 = bswap_64 (i64); + assert (memcmp (&i64, be64, 8) == 0); + i64 = bswap_64 (i64); + assert (memcmp (&i64, le64, 8) == 0); + + exit (EXIT_SUCCESS); +} diff --git a/common/include/test-current-dir-name.c b/common/include/test-current-dir-name.c new file mode 100644 index 0000000..c3ca52a --- /dev/null +++ b/common/include/test-current-dir-name.c @@ -0,0 +1,54 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#undef NDEBUG /* Keep test strong even for nbdkit built without assertions */ +#include + +#include "get-current-dir-name.h" + +int +main (void) +{ + char *pwd; + + pwd = get_current_dir_name (); + printf ("pwd = %s\n", pwd); + free (pwd); + exit (EXIT_SUCCESS); +} diff --git a/common/include/test-isaligned.c b/common/include/test-isaligned.c new file mode 100644 index 0000000..cb77ff7 --- /dev/null +++ b/common/include/test-isaligned.c @@ -0,0 +1,62 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#undef NDEBUG /* Keep test strong even for nbdkit built without assertions */ +#include + +#include "isaligned.h" + +int +main (void) +{ + uint64_t i; + + for (i = 1; i <= 0x80000000; i <<= 1) { + assert (IS_ALIGNED (0, i)); + assert (IS_ALIGNED (i, i)); + assert (IS_ALIGNED (i*2, i)); + assert (IS_ALIGNED (i*3, i)); + assert (IS_ALIGNED (i*4, i)); + if (i > 1) { + assert (! IS_ALIGNED (i-1, i)); + assert (! IS_ALIGNED (i/2, i)); + } + } + + exit (EXIT_SUCCESS); +} diff --git a/common/include/test-ispowerof2.c b/common/include/test-ispowerof2.c new file mode 100644 index 0000000..9f904b2 --- /dev/null +++ b/common/include/test-ispowerof2.c @@ -0,0 +1,62 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#undef NDEBUG /* Keep test strong even for nbdkit built without assertions */ +#include + +#include "ispowerof2.h" + +int +main (void) +{ + uint64_t i; + + assert (! is_power_of_2 (0)); + + /* is_power_of_2 is only defined for unsigned long type, which is + * 32 bit on 32 bit platforms. We need to store i in a 64 bit type + * so the loops don't wrap around. + */ + for (i = 1; i <= 0x80000000; i <<= 1) + assert (is_power_of_2 (i)); + + for (i = 4; i <= 0x80000000; i <<= 1) + assert (! is_power_of_2 (i-1)); + + exit (EXIT_SUCCESS); +} diff --git a/common/include/test-iszero.c b/common/include/test-iszero.c new file mode 100644 index 0000000..732dac5 --- /dev/null +++ b/common/include/test-iszero.c @@ -0,0 +1,66 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#undef NDEBUG /* Keep test strong even for nbdkit built without assertions */ +#include + +#include "iszero.h" + +int +main (void) +{ + char *buf; + size_t i, j; + + buf = malloc (256); + if (buf == NULL) { + perror ("malloc"); + exit (EXIT_FAILURE); + } + memset (buf, 0, 256); + + for (j = 0; j <= 16; ++j) { + for (i = 0; i <= 16; ++i) + assert (is_zero (&buf[j], i)); + for (i = 0; i <= 16; ++i) + assert (is_zero (&buf[j], 256-j-i)); + } + + free (buf); + exit (EXIT_SUCCESS); +} diff --git a/common/include/test-minmax.c b/common/include/test-minmax.c new file mode 100644 index 0000000..7584ab2 --- /dev/null +++ b/common/include/test-minmax.c @@ -0,0 +1,158 @@ +/* nbdkit + * Copyright (C) 2018-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#undef NDEBUG /* Keep test strong even for nbdkit built without assertions */ +#include +#include + +#include "minmax.h" + +#define SIGNED_TEST(var, min, max) \ + MIN_SIGNED_TEST (var, min, max) \ + MAX_SIGNED_TEST (var, min, max) + +#define MIN_SIGNED_TEST(var, min, max) \ + var = 0; \ + assert (MIN (0, var) == 0); \ + var = 1; \ + assert (MIN (0, var) == 0); \ + var = -1; \ + assert (MIN (0, var) == -1); \ + var = 1; \ + assert (MIN (var, 0) == 0); \ + var = 1; \ + assert (MIN (var, 1) == 1); \ + var = -1; \ + assert (MIN (var, 0) == -1); \ + var = min; \ + assert (MIN (var, min) == min); \ + var = max; \ + assert (MIN (var, max) == max); \ + var = min; \ + assert (MIN (var, max) == min); \ + assert (MIN (0, min) == min); + +#define MAX_SIGNED_TEST(var, min, max) \ + var = 0; \ + assert (MAX (0, var) == 0); \ + var = 1; \ + assert (MAX (0, var) == 1); \ + var = -1; \ + assert (MAX (0, var) == 0); \ + var = 1; \ + assert (MAX (var, 0) == 1); \ + var = 1; \ + assert (MAX (var, 1) == 1); \ + var = -1; \ + assert (MAX (var, 0) == 0); \ + var = min; \ + assert (MAX (var, min) == min); \ + var = max; \ + assert (MAX (var, max) == max); \ + var = min; \ + assert (MAX (var, max) == max); \ + assert (MAX (0, min) == 0); + +#define UNSIGNED_TEST(var, max) \ + MIN_UNSIGNED_TEST (var, max) \ + MAX_UNSIGNED_TEST (var, max) + +#define MIN_UNSIGNED_TEST(var, max) \ + var = 0; \ + assert (MIN (0, var) == 0); \ + var = 1; \ + assert (MIN (0, var) == 0); \ + var = 1; \ + assert (MIN (var, 0) == 0); \ + var = 1; \ + assert (MIN (var, 1) == 1); \ + var = max; \ + assert (MIN (var, max) == max); + +#define MAX_UNSIGNED_TEST(var, max) \ + var = 0; \ + assert (MAX (0, var) == 0); \ + var = 1; \ + assert (MAX (0, var) == 1); \ + var = 1; \ + assert (MAX (var, 0) == 1); \ + var = 1; \ + assert (MAX (var, 1) == 1); \ + var = max; \ + assert (MAX (var, max) == max); + +int +main (void) +{ + signed char sc; + int i; + int8_t i8; + int16_t i16; + int32_t i32; + int64_t i64; + unsigned char uc; + unsigned u; + uint8_t u8; + uint16_t u16; + uint32_t u32; + uint64_t u64; + float f; + double d; + + SIGNED_TEST (sc, SCHAR_MIN, SCHAR_MAX); + SIGNED_TEST (i, INT_MIN, INT_MAX); + SIGNED_TEST (i8, INT8_MIN, INT8_MAX); + SIGNED_TEST (i16, INT16_MIN, INT16_MAX); + SIGNED_TEST (i32, INT32_MIN, INT32_MAX); + SIGNED_TEST (i64, INT64_MIN, INT64_MAX); + + UNSIGNED_TEST (uc, UCHAR_MAX); + UNSIGNED_TEST (u, UINT_MAX); + UNSIGNED_TEST (u8, UINT8_MAX); + UNSIGNED_TEST (u16, UINT16_MAX); + UNSIGNED_TEST (u32, UINT32_MAX); + UNSIGNED_TEST (u64, UINT64_MAX); + + /* Note that FLT_MIN and DBL_MIN are the closest positive normalized + * numbers to 0.0, not the min. + */ + SIGNED_TEST (f, -FLT_MAX, FLT_MAX); + SIGNED_TEST (d, -DBL_MAX, DBL_MAX); + + exit (EXIT_SUCCESS); +} diff --git a/common/include/test-nextnonzero.c b/common/include/test-nextnonzero.c new file mode 100644 index 0000000..8ab335c --- /dev/null +++ b/common/include/test-nextnonzero.c @@ -0,0 +1,63 @@ +/* nbdkit + * Copyright (C) 2018-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#undef NDEBUG /* Keep test strong even for nbdkit built without assertions */ +#include + +#include "nextnonzero.h" + +char buf[256]; + +int +main (void) +{ + size_t i, j; + char *p; + + for (j = 0; j <= 64; ++j) { + for (i = 0; i <= 64; ++i) { + memset (buf, 0, sizeof buf); + + p = &buf[sizeof buf - j - 1]; + *p = i+1; + assert (next_non_zero (&buf[i], sizeof buf - i) == p); + } + } + + exit (EXIT_SUCCESS); +} diff --git a/common/include/test-random.c b/common/include/test-random.c new file mode 100644 index 0000000..16553ee --- /dev/null +++ b/common/include/test-random.c @@ -0,0 +1,194 @@ +/* nbdkit + * Copyright (C) 2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include + +#include "random.h" + +/* This works by comparing the result to some known test vectors. It + * should produce the same result on all architectures, platforms and + * compilers. + */ + +#define LEN 16 + +struct { + uint64_t seed; + uint64_t vector[LEN]; +} tests[] = { + { 0, { +UINT64_C(0x99ec5f36cb75f2b4), +UINT64_C(0xbf6e1f784956452a), +UINT64_C(0x1a5f849d4933e6e0), +UINT64_C(0x6aa594f1262d2d2c), +UINT64_C(0xbba5ad4a1f842e59), +UINT64_C(0xffef8375d9ebcaca), +UINT64_C(0x6c160deed2f54c98), +UINT64_C(0x8920ad648fc30a3f), +UINT64_C(0xdb032c0ba7539731), +UINT64_C(0xeb3a475a3e749a3d), +UINT64_C(0x1d42993fa43f2a54), +UINT64_C(0x11361bf526a14bb5), +UINT64_C(0x1b4f07a5ab3d8e9c), +UINT64_C(0xa7a3257f6986db7f), +UINT64_C(0x7efdaa95605dfc9c), +UINT64_C(0x4bde97c0a78eaab8), + } }, + { 1, { +UINT64_C(0xb3f2af6d0fc710c5), +UINT64_C(0x853b559647364cea), +UINT64_C(0x92f89756082a4514), +UINT64_C(0x642e1c7bc266a3a7), +UINT64_C(0xb27a48e29a233673), +UINT64_C(0x24c123126ffda722), +UINT64_C(0x123004ef8df510e6), +UINT64_C(0x61954dcc47b1e89d), +UINT64_C(0xddfdb48ab9ed4a21), +UINT64_C(0x8d3cdb8c3aa5b1d0), +UINT64_C(0xeebd114bd87226d1), +UINT64_C(0xf50c3ff1e7d7e8a6), +UINT64_C(0xeeca3115e23bc8f1), +UINT64_C(0xab49ed3db4c66435), +UINT64_C(0x99953c6c57808dd7), +UINT64_C(0xe3fa941b05219325), +} }, + { 2, { +UINT64_C(0x1a28690da8a8d057), +UINT64_C(0xb9bb8042daedd58a), +UINT64_C(0x2f1829af001ef205), +UINT64_C(0xbf733e63d139683d), +UINT64_C(0xafa78247c6a82034), +UINT64_C(0x3c69a1b6d15cf0d0), +UINT64_C(0xa5a9fdd18948c400), +UINT64_C(0x3813d2654a981e91), +UINT64_C(0x9be35597c9c97bfa), +UINT64_C(0xbfc5e80fd0b75f32), +UINT64_C(0xbee02daaac716557), +UINT64_C(0x5afed6f12b594dbe), +UINT64_C(0xae346b9196e12cc7), +UINT64_C(0xf5f45afc1af068ed), +UINT64_C(0xff75eccacfb37519), +UINT64_C(0x1adca5a0b2e766c5), +} }, + { 3, { +UINT64_C(0xb0cdabdae5668cc0), +UINT64_C(0xa3fd1dea5e1864ee), +UINT64_C(0x37e00afb3229fd51), +UINT64_C(0x88b1b58b236f3bea), +UINT64_C(0x6cb24c8fb224980a), +UINT64_C(0x6646287ee2a98083), +UINT64_C(0x35cd8bb5e1fa7256), +UINT64_C(0xb72fe6e16b6fb4e6), +UINT64_C(0xf1397a9f1db4f5d9), +UINT64_C(0x31f25047faa8e5d4), +UINT64_C(0xec616a6e46e96dec), +UINT64_C(0xae0c5e0f7b5d1449), +UINT64_C(0xa517e799c5c6e32f), +UINT64_C(0xc1276908f843b688), +UINT64_C(0xaf7e924d738d87ec), +UINT64_C(0x1c3f3ba863d5c7d1), +} }, + { 4, { +UINT64_C(0x437057a4eb7c3a13), +UINT64_C(0xe95a0d7fd8c1832c), +UINT64_C(0x71807ff81a0c627e), +UINT64_C(0xfa40f34634632cd2), +UINT64_C(0x39cf61fc694b95b7), +UINT64_C(0x9ca3d6e037621a02), +UINT64_C(0x7be965236729c7d3), +UINT64_C(0xb95fba07afa980ac), +UINT64_C(0x91424978ab94232), +UINT64_C(0x565eb8170fdae341), +UINT64_C(0x0744508beb95a6bb), +UINT64_C(0xf2426b33aa0a601d), +UINT64_C(0x7ddc1fcd0bfec893), +UINT64_C(0x9e09fedd4af1ff3d), +UINT64_C(0xbe77c1bed02132e7), +UINT64_C(0x61e4f6e3e88d34d4), +} }, + { UINT64_MAX, { +UINT64_C(0x8f5520d52a7ead08), +UINT64_C(0xc476a018caa1802d), +UINT64_C(0x81de31c0d260469e), +UINT64_C(0xbf658d7e065f3c2f), +UINT64_C(0x913593fda1bca32a), +UINT64_C(0xbb535e93941ba525), +UINT64_C(0x5ecda415c3c6dfde), +UINT64_C(0xc487398fc9de9ae2), +UINT64_C(0xa06746dbb57c4d62), +UINT64_C(0x9d414196fdf05c8a), +UINT64_C(0x41cf1af9a178c669), +UINT64_C(0x0b3b3a95e78839f9), +UINT64_C(0x7aaab30444aefc7e), +UINT64_C(0x7b251ec961f341b1), +UINT64_C(0x30ed32acf367205f), +UINT64_C(0xc6ca62fc772728b0), +} }, +}; + +#define nr_tests (sizeof tests / sizeof tests[0]) + +int +main (void) +{ + size_t i, j; + uint64_t r; + unsigned errors = 0; + + for (i = 0; i < nr_tests; ++i) { + struct random_state state; + + printf ("seed: %" PRIu64 "\n", tests[i].seed); + xsrandom (tests[i].seed, &state); + for (j = 0; j < LEN; ++j) { + r = xrandom (&state); + if (tests[i].vector[j] != r) { + printf ("\texpected: 0x%" PRIx64 "\tactual: 0x%" PRIx64 "\n", + tests[i].vector[j], r); + errors++; + } + } + } + + if (errors > 0) { + fprintf (stderr, "random vector does not match expected\n"); + exit (EXIT_FAILURE); + } + + printf ("test successful\n"); + exit (EXIT_SUCCESS); +} diff --git a/common/include/test-tvdiff.c b/common/include/test-tvdiff.c new file mode 100644 index 0000000..abefb2e --- /dev/null +++ b/common/include/test-tvdiff.c @@ -0,0 +1,130 @@ +/* nbdkit + * Copyright (C) 2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include + +#include "tvdiff.h" + +/* This is mainly a test of the compiler and platform rather than our + * implementation. + */ + +#define TEST_TVDIFF(tv1, tv2, expected) \ + do { \ + int64_t actual = tvdiff_usec (&(tv1), &(tv2)); \ + \ + if (actual != (expected)) { \ + fprintf (stderr, \ + "%s: unexpected result %" PRIi64 ", expecting %" PRIi64 "\n", \ + argv[0], actual, (int64_t) (expected)); \ + errors++; \ + } \ + } while (0) + +#define TEST_SUBTRACT(tv1, tv2, exp_sec, exp_usec) \ + do { \ + struct timeval z; \ + \ + subtract_timeval (&tv1, &tv2, &z); \ + if (z.tv_sec != (exp_sec) || z.tv_usec != (exp_usec)) { \ + fprintf (stderr, \ + "%s: unexpected (%ld, %d), expecting (%ld, %d)\n", \ + argv[0], \ + (long) z.tv_sec, (int) z.tv_usec, \ + (long) (exp_sec), (int) (exp_usec)); \ + errors++; \ + } \ + } while (0) + +int +main (int argc, char *argv[]) +{ + struct timeval tv1, tv2; + unsigned errors = 0; + + tv1.tv_sec = 1000; + tv1.tv_usec = 1; + TEST_TVDIFF (tv1, tv1, 0); + TEST_SUBTRACT (tv1, tv1, 0, 0); + + tv2.tv_sec = 1000; + tv2.tv_usec = 2; + TEST_TVDIFF (tv1, tv2, 1); + TEST_SUBTRACT (tv1, tv2, 0, 1); + TEST_TVDIFF (tv2, tv1, -1); + TEST_SUBTRACT (tv2, tv1, 0, -1); + + tv2.tv_sec = 1000; + tv2.tv_usec = 3; + TEST_TVDIFF (tv1, tv2, 2); + TEST_SUBTRACT (tv1, tv2, 0, 2); + TEST_TVDIFF (tv2, tv1, -2); + TEST_SUBTRACT (tv2, tv1, 0, -2); + + tv2.tv_sec = 1001; + tv2.tv_usec = 0; + TEST_TVDIFF (tv1, tv2, 999999); + TEST_SUBTRACT (tv1, tv2, 0, 999999); + TEST_TVDIFF (tv2, tv1, -999999); + TEST_SUBTRACT (tv2, tv1, 0, -999999); + + tv1.tv_sec = 1000; + tv1.tv_usec = 999999; + tv2.tv_sec = 1001; + tv2.tv_usec = 1; + TEST_TVDIFF (tv1, tv2, 2); + TEST_SUBTRACT (tv1, tv2, 0, 2); + TEST_TVDIFF (tv2, tv1, -2); + TEST_SUBTRACT (tv2, tv1, 0, -2); + + tv1.tv_sec = 1000; + tv1.tv_usec = 1; + tv2.tv_sec = 1001; + tv2.tv_usec = 2; + TEST_TVDIFF (tv1, tv2, 1000001); + TEST_SUBTRACT (tv1, tv2, 1, 1); + TEST_TVDIFF (tv2, tv1, -1000001); + TEST_SUBTRACT (tv2, tv1, -1, -1); + + /* Test that an arbitrary tv is equal to itself. */ + gettimeofday (&tv1, NULL); + TEST_TVDIFF (tv1, tv1, 0); + TEST_SUBTRACT (tv1, tv1, 0, 0); + + exit (errors == 0 ? EXIT_SUCCESS : EXIT_FAILURE); +} diff --git a/common/include/tvdiff.h b/common/include/tvdiff.h new file mode 100644 index 0000000..cec8345 --- /dev/null +++ b/common/include/tvdiff.h @@ -0,0 +1,64 @@ +/* nbdkit + * Copyright (C) 2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_TVDIFF_H +#define NBDKIT_TVDIFF_H + +/* Compute struct timeval differences. */ + +#include + +#include + +/* Return the number of µs (microseconds) in y - x. */ +static inline int64_t +tvdiff_usec (const struct timeval *x, const struct timeval *y) +{ + int64_t usec; + + usec = (y->tv_sec - x->tv_sec) * 1000000; + usec += y->tv_usec - x->tv_usec; + return usec; +} + +/* Return timeval difference as another struct timeval. z = y - x. */ +static inline void +subtract_timeval (const struct timeval *x, const struct timeval *y, + struct timeval *z) +{ + int64_t usec = tvdiff_usec (x, y); + + z->tv_sec = usec / 1000000; + z->tv_usec = usec % 1000000; +} + +#endif /* NBDKIT_TVDIFF_H */ diff --git a/common/include/unix-path-max.h b/common/include/unix-path-max.h new file mode 100644 index 0000000..b63ae8d --- /dev/null +++ b/common/include/unix-path-max.h @@ -0,0 +1,42 @@ +/* nbdkit + * Copyright (C) 2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_UNIX_PATH_MAX_H +#define NBDKIT_UNIX_PATH_MAX_H + +#ifdef __APPLE__ +#define UNIX_PATH_MAX 104 +#else +#define UNIX_PATH_MAX 108 +#endif + +#endif /* NBDKIT_UNIX_PATH_MAX_H */ diff --git a/common/protocol/Makefile.am b/common/protocol/Makefile.am new file mode 100644 index 0000000..da7fa77 --- /dev/null +++ b/common/protocol/Makefile.am @@ -0,0 +1,60 @@ +# nbdkit +# Copyright (C) 2018-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = \ + nbd-protocol.h \ + protostrings.c \ + $(NULL) + +include_HEADERS = nbd-protocol.h + +noinst_LTLIBRARIES = libprotocol.la + +libprotocol_la_SOURCES = \ + protostrings.c \ + protostrings.h \ + nbd-protocol.h \ + $(NULL) +libprotocol_la_CFLAGS = $(WARNINGS_CFLAGS) + +# protostrings.c is generated from the nbd-protocol.h header file +# where it is used to map NBD protocol flags to strings. + +BUILT_SOURCES = protostrings.c +CLEANFILES += protostrings.c + +protostrings.c: nbd-protocol.h generate-protostrings.sh Makefile + rm -f $@ $@-t + $(srcdir)/generate-protostrings.sh > $@-t + mv $@-t $@ + chmod 0444 $@ diff --git a/common/protocol/Makefile.in b/common/protocol/Makefile.in new file mode 100644 index 0000000..b5793a8 --- /dev/null +++ b/common/protocol/Makefile.in @@ -0,0 +1,857 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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a/common/protocol/generate-protostrings.sh.in b/common/protocol/generate-protostrings.sh.in new file mode 100755 index 0000000..a7fb079 --- /dev/null +++ b/common/protocol/generate-protostrings.sh.in @@ -0,0 +1,75 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# The header. +cat <<'EOF' +/* Generated from nbd-protocol.h by generate-protostrings.sh. + * License of this file is BSD, the same as the rest of nbdkit. + */ + +#include "nbd-protocol.h" + +EOF + +declare -A functions=( + [global_flag]=NBD_FLAG_FIXED_NEWSTYLE + [flag]=NBD_FLAG_HAS_FLAGS + [opt]=NBD_OPT_EXPORT_NAME + [rep]=NBD_REP_ACK + [info]=NBD_INFO_EXPORT + [reply]=NBD_REPLY_FLAG_DONE + [reply_type]=NBD_REPLY_TYPE_NONE + [cmd]=NBD_CMD_READ + [cmd_flag]=NBD_CMD_FLAG_FUA + [error]=NBD_SUCCESS +) + +# Generate each 'const char *name_of_nbd_' +keys=$( printf '%s\n' ${!functions[@]} | sort ) +for fn in $keys; do + echo 'extern const char *' + echo "name_of_nbd_$fn (int fl)" + echo '{' + echo ' switch (fl) {' + + # We look for the first #define and rewrite every + # line up to the next blank line. + symbol="${functions[$fn]}" + @SED@ -n "/^#define $symbol/,/^$/p" nbd-protocol.h | + @SED@ 's/^#define \([_A-Z]*\).*/ case \1:\ + return "\1\";/' + + echo ' default: return "unknown";' + echo ' }' + echo '}' + echo +done diff --git a/common/protocol/nbd-protocol.h b/common/protocol/nbd-protocol.h new file mode 100644 index 0000000..e5d6404 --- /dev/null +++ b/common/protocol/nbd-protocol.h @@ -0,0 +1,278 @@ +/* nbdkit + * Copyright (C) 2013-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBD_PROTOCOL_H +#define NBD_PROTOCOL_H + +#include + +/* Note that all NBD fields are sent on the wire in network byte + * order, so you must use beXXtoh or htobeXX when reading or writing + * these structures. + */ + +#if defined(__GNUC__) || defined(__clang__) +#define NBD_ATTRIBUTE_PACKED __attribute__((__packed__)) +#else +#error "Please port to your compiler's notion of a packed struct" +#endif + +#define NBD_MAX_STRING 4096 /* Maximum length of a string field */ + +/* Old-style handshake. */ +struct nbd_old_handshake { + uint64_t nbdmagic; /* NBD_MAGIC */ + uint64_t version; /* NBD_OLD_VERSION */ + uint64_t exportsize; + uint16_t gflags; /* global flags */ + uint16_t eflags; /* per-export flags */ + char zeroes[124]; /* must be sent as zero bytes */ +} NBD_ATTRIBUTE_PACKED; + +#define NBD_MAGIC UINT64_C(0x4e42444d41474943) /* ASCII "NBDMAGIC" */ +#define NBD_OLD_VERSION UINT64_C(0x0000420281861253) + +/* New-style handshake. */ +struct nbd_new_handshake { + uint64_t nbdmagic; /* NBD_MAGIC */ + uint64_t version; /* NBD_NEW_VERSION */ + uint16_t gflags; /* global flags */ +} NBD_ATTRIBUTE_PACKED; + +#define NBD_NEW_VERSION UINT64_C(0x49484156454F5054) /* ASCII "IHAVEOPT" */ + +/* New-style handshake option (sent by the client to us). */ +struct nbd_new_option { + uint64_t version; /* NBD_NEW_VERSION */ + uint32_t option; /* NBD_OPT_* */ + uint32_t optlen; /* option data length */ + /* option data follows */ +} NBD_ATTRIBUTE_PACKED; + +/* Newstyle handshake OPT_EXPORT_NAME reply message. + * Modern clients use NBD_OPT_GO instead of this. + */ +struct nbd_export_name_option_reply { + uint64_t exportsize; /* size of export */ + uint16_t eflags; /* per-export flags */ + char zeroes[124]; /* optional zeroes, unless NBD_FLAG_NO_ZEROES */ +} NBD_ATTRIBUTE_PACKED; + +/* Fixed newstyle handshake reply message. */ +struct nbd_fixed_new_option_reply { + uint64_t magic; /* NBD_REP_MAGIC */ + uint32_t option; /* option we are replying to */ + uint32_t reply; /* NBD_REP_* */ + uint32_t replylen; +} NBD_ATTRIBUTE_PACKED; + +#define NBD_REP_MAGIC UINT64_C(0x3e889045565a9) + +/* Global flags. */ +#define NBD_FLAG_FIXED_NEWSTYLE (1 << 0) +#define NBD_FLAG_NO_ZEROES (1 << 1) + +/* Per-export flags. */ +#define NBD_FLAG_HAS_FLAGS (1 << 0) +#define NBD_FLAG_READ_ONLY (1 << 1) +#define NBD_FLAG_SEND_FLUSH (1 << 2) +#define NBD_FLAG_SEND_FUA (1 << 3) +#define NBD_FLAG_ROTATIONAL (1 << 4) +#define NBD_FLAG_SEND_TRIM (1 << 5) +#define NBD_FLAG_SEND_WRITE_ZEROES (1 << 6) +#define NBD_FLAG_SEND_DF (1 << 7) +#define NBD_FLAG_CAN_MULTI_CONN (1 << 8) +#define NBD_FLAG_SEND_CACHE (1 << 10) +#define NBD_FLAG_SEND_FAST_ZERO (1 << 11) + +/* NBD options (new style handshake only). */ +#define NBD_OPT_EXPORT_NAME 1 +#define NBD_OPT_ABORT 2 +#define NBD_OPT_LIST 3 +#define NBD_OPT_STARTTLS 5 +#define NBD_OPT_INFO 6 +#define NBD_OPT_GO 7 +#define NBD_OPT_STRUCTURED_REPLY 8 +#define NBD_OPT_LIST_META_CONTEXT 9 +#define NBD_OPT_SET_META_CONTEXT 10 + +#define NBD_REP_ERR(val) (0x80000000 | (val)) +#define NBD_REP_IS_ERR(val) (!!((val) & 0x80000000)) + +#define NBD_REP_ACK 1 +#define NBD_REP_SERVER 2 +#define NBD_REP_INFO 3 +#define NBD_REP_META_CONTEXT 4 +#define NBD_REP_ERR_UNSUP NBD_REP_ERR (1) +#define NBD_REP_ERR_POLICY NBD_REP_ERR (2) +#define NBD_REP_ERR_INVALID NBD_REP_ERR (3) +#define NBD_REP_ERR_PLATFORM NBD_REP_ERR (4) +#define NBD_REP_ERR_TLS_REQD NBD_REP_ERR (5) +#define NBD_REP_ERR_UNKNOWN NBD_REP_ERR (6) +#define NBD_REP_ERR_SHUTDOWN NBD_REP_ERR (7) +#define NBD_REP_ERR_BLOCK_SIZE_REQD NBD_REP_ERR (8) +#define NBD_REP_ERR_TOO_BIG NBD_REP_ERR (9) + +#define NBD_INFO_EXPORT 0 +#define NBD_INFO_NAME 1 +#define NBD_INFO_DESCRIPTION 2 +#define NBD_INFO_BLOCK_SIZE 3 + +/* NBD_INFO_EXPORT reply (follows fixed_new_option_reply). */ +struct nbd_fixed_new_option_reply_info_export { + uint16_t info; /* NBD_INFO_EXPORT */ + uint64_t exportsize; /* size of export */ + uint16_t eflags; /* per-export flags */ +} NBD_ATTRIBUTE_PACKED; + +/* NBD_INFO_NAME or NBD_INFO_DESCRIPTION reply (follows + * fixed_new_option_reply). + */ +struct nbd_fixed_new_option_reply_info_name_or_desc { + uint16_t info; /* NBD_INFO_NAME, NBD_INFO_DESCRIPTION */ + /* followed by a string name or description */ +} NBD_ATTRIBUTE_PACKED; + +/* NBD_INFO_BLOCK_SIZE reply (follows fixed_new_option_reply). */ +struct nbd_fixed_new_option_reply_info_block_size { + uint16_t info; /* NBD_INFO_BLOCK_SIZE */ + uint32_t minimum; /* minimum block size */ + uint32_t preferred; /* preferred block size */ + uint32_t maximum; /* maximum block size */ +} NBD_ATTRIBUTE_PACKED; + +/* NBD_REP_SERVER reply (follows fixed_new_option_reply). */ +struct nbd_fixed_new_option_reply_server { + uint32_t export_name_len; /* length of export name */ + /* followed by a string export name and description */ +} NBD_ATTRIBUTE_PACKED; + +/* NBD_REP_META_CONTEXT reply (follows fixed_new_option_reply). */ +struct nbd_fixed_new_option_reply_meta_context { + uint32_t context_id; /* metadata context ID */ + /* followed by a string */ +} NBD_ATTRIBUTE_PACKED; + +/* NBD_REPLY_TYPE_BLOCK_STATUS block descriptor. */ +struct nbd_block_descriptor { + uint32_t length; /* length of block */ + uint32_t status_flags; /* block type (hole etc) */ +} NBD_ATTRIBUTE_PACKED; + +/* Request (client -> server). */ +struct nbd_request { + uint32_t magic; /* NBD_REQUEST_MAGIC. */ + uint16_t flags; /* Request flags. */ + uint16_t type; /* Request type. */ + uint64_t handle; /* Opaque handle. */ + uint64_t offset; /* Request offset. */ + uint32_t count; /* Request length. */ +} NBD_ATTRIBUTE_PACKED; + +/* Simple reply (server -> client). */ +struct nbd_simple_reply { + uint32_t magic; /* NBD_SIMPLE_REPLY_MAGIC. */ + uint32_t error; /* NBD_SUCCESS or one of NBD_E*. */ + uint64_t handle; /* Opaque handle. */ +} NBD_ATTRIBUTE_PACKED; + +/* Structured reply (server -> client). */ +struct nbd_structured_reply { + uint32_t magic; /* NBD_STRUCTURED_REPLY_MAGIC. */ + uint16_t flags; /* NBD_REPLY_FLAG_* */ + uint16_t type; /* NBD_REPLY_TYPE_* */ + uint64_t handle; /* Opaque handle. */ + uint32_t length; /* Length of payload which follows. */ +} NBD_ATTRIBUTE_PACKED; + +struct nbd_structured_reply_offset_data { + uint64_t offset; /* offset */ + /* Followed by data. */ +} NBD_ATTRIBUTE_PACKED; + +struct nbd_structured_reply_offset_hole { + uint64_t offset; + uint32_t length; /* Length of hole. */ +} NBD_ATTRIBUTE_PACKED; + +struct nbd_structured_reply_error { + uint32_t error; /* NBD_E* error number */ + uint16_t len; /* Length of human readable error. */ + /* Followed by human readable error string, and possibly more structure. */ +} NBD_ATTRIBUTE_PACKED; + +#define NBD_REQUEST_MAGIC 0x25609513 +#define NBD_SIMPLE_REPLY_MAGIC 0x67446698 +#define NBD_STRUCTURED_REPLY_MAGIC 0x668e33ef + +/* Structured reply flags. */ +#define NBD_REPLY_FLAG_DONE (1<<0) + +#define NBD_REPLY_TYPE_ERR(val) ((1<<15) | (val)) +#define NBD_REPLY_TYPE_IS_ERR(val) (!!((val) & (1<<15))) + +/* Structured reply types. */ +#define NBD_REPLY_TYPE_NONE 0 +#define NBD_REPLY_TYPE_OFFSET_DATA 1 +#define NBD_REPLY_TYPE_OFFSET_HOLE 2 +#define NBD_REPLY_TYPE_BLOCK_STATUS 5 +#define NBD_REPLY_TYPE_ERROR NBD_REPLY_TYPE_ERR (1) +#define NBD_REPLY_TYPE_ERROR_OFFSET NBD_REPLY_TYPE_ERR (2) + +/* NBD commands. */ +#define NBD_CMD_READ 0 +#define NBD_CMD_WRITE 1 +#define NBD_CMD_DISC 2 /* Disconnect. */ +#define NBD_CMD_FLUSH 3 +#define NBD_CMD_TRIM 4 +#define NBD_CMD_CACHE 5 +#define NBD_CMD_WRITE_ZEROES 6 +#define NBD_CMD_BLOCK_STATUS 7 + +#define NBD_CMD_FLAG_FUA (1<<0) +#define NBD_CMD_FLAG_NO_HOLE (1<<1) +#define NBD_CMD_FLAG_DF (1<<2) +#define NBD_CMD_FLAG_REQ_ONE (1<<3) +#define NBD_CMD_FLAG_FAST_ZERO (1<<4) + +/* NBD error codes. */ +#define NBD_SUCCESS 0 +#define NBD_EPERM 1 +#define NBD_EIO 5 +#define NBD_ENOMEM 12 +#define NBD_EINVAL 22 +#define NBD_ENOSPC 28 +#define NBD_EOVERFLOW 75 +#define NBD_ENOTSUP 95 +#define NBD_ESHUTDOWN 108 + +#endif /* NBD_PROTOCOL_H */ diff --git a/common/protocol/protostrings.c b/common/protocol/protostrings.c new file mode 100644 index 0000000..d2e362d --- /dev/null +++ b/common/protocol/protostrings.c @@ -0,0 +1,232 @@ +/* Generated from nbd-protocol.h by generate-protostrings.sh. + * License of this file is BSD, the same as the rest of nbdkit. + */ + +#include "nbd-protocol.h" + +extern const char * +name_of_nbd_cmd (int fl) +{ + switch (fl) { + case NBD_CMD_READ: + return "NBD_CMD_READ"; + case NBD_CMD_WRITE: + return "NBD_CMD_WRITE"; + case NBD_CMD_DISC: + return "NBD_CMD_DISC"; + case NBD_CMD_FLUSH: + return "NBD_CMD_FLUSH"; + case NBD_CMD_TRIM: + return "NBD_CMD_TRIM"; + case NBD_CMD_CACHE: + return "NBD_CMD_CACHE"; + case NBD_CMD_WRITE_ZEROES: + return "NBD_CMD_WRITE_ZEROES"; + case NBD_CMD_BLOCK_STATUS: + return "NBD_CMD_BLOCK_STATUS"; + + default: return "unknown"; + } +} + +extern const char * +name_of_nbd_cmd_flag (int fl) +{ + switch (fl) { + case NBD_CMD_FLAG_FUA: + return "NBD_CMD_FLAG_FUA"; + case NBD_CMD_FLAG_NO_HOLE: + return "NBD_CMD_FLAG_NO_HOLE"; + case NBD_CMD_FLAG_DF: + return "NBD_CMD_FLAG_DF"; + case NBD_CMD_FLAG_REQ_ONE: + return "NBD_CMD_FLAG_REQ_ONE"; + case NBD_CMD_FLAG_FAST_ZERO: + return "NBD_CMD_FLAG_FAST_ZERO"; + + default: return "unknown"; + } +} + +extern const char * +name_of_nbd_error (int fl) +{ + switch (fl) { + case NBD_SUCCESS: + return "NBD_SUCCESS"; + case NBD_EPERM: + return "NBD_EPERM"; + case NBD_EIO: + return "NBD_EIO"; + case NBD_ENOMEM: + return "NBD_ENOMEM"; + case NBD_EINVAL: + return "NBD_EINVAL"; + case NBD_ENOSPC: + return "NBD_ENOSPC"; + case NBD_EOVERFLOW: + return "NBD_EOVERFLOW"; + case NBD_ENOTSUP: + return "NBD_ENOTSUP"; + case NBD_ESHUTDOWN: + return "NBD_ESHUTDOWN"; + + default: return "unknown"; + } +} + +extern const char * +name_of_nbd_flag (int fl) +{ + switch (fl) { + case NBD_FLAG_HAS_FLAGS: + return "NBD_FLAG_HAS_FLAGS"; + case NBD_FLAG_READ_ONLY: + return "NBD_FLAG_READ_ONLY"; + case NBD_FLAG_SEND_FLUSH: + return "NBD_FLAG_SEND_FLUSH"; + case NBD_FLAG_SEND_FUA: + return "NBD_FLAG_SEND_FUA"; + case NBD_FLAG_ROTATIONAL: + return "NBD_FLAG_ROTATIONAL"; + case NBD_FLAG_SEND_TRIM: + return "NBD_FLAG_SEND_TRIM"; + case NBD_FLAG_SEND_WRITE_ZEROES: + return "NBD_FLAG_SEND_WRITE_ZEROES"; + case NBD_FLAG_SEND_DF: + return "NBD_FLAG_SEND_DF"; + case NBD_FLAG_CAN_MULTI_CONN: + return "NBD_FLAG_CAN_MULTI_CONN"; + case NBD_FLAG_SEND_CACHE: + return "NBD_FLAG_SEND_CACHE"; + case NBD_FLAG_SEND_FAST_ZERO: + return "NBD_FLAG_SEND_FAST_ZERO"; + + default: return "unknown"; + } +} + +extern const char * +name_of_nbd_global_flag (int fl) +{ + switch (fl) { + case NBD_FLAG_FIXED_NEWSTYLE: + return "NBD_FLAG_FIXED_NEWSTYLE"; + case NBD_FLAG_NO_ZEROES: + return "NBD_FLAG_NO_ZEROES"; + + default: return "unknown"; + } +} + +extern const char * +name_of_nbd_info (int fl) +{ + switch (fl) { + case NBD_INFO_EXPORT: + return "NBD_INFO_EXPORT"; + case NBD_INFO_NAME: + return "NBD_INFO_NAME"; + case NBD_INFO_DESCRIPTION: + return "NBD_INFO_DESCRIPTION"; + case NBD_INFO_BLOCK_SIZE: + return "NBD_INFO_BLOCK_SIZE"; + + default: return "unknown"; + } +} + +extern const char * +name_of_nbd_opt (int fl) +{ + switch (fl) { + case NBD_OPT_EXPORT_NAME: + return "NBD_OPT_EXPORT_NAME"; + case NBD_OPT_ABORT: + return "NBD_OPT_ABORT"; + case NBD_OPT_LIST: + return "NBD_OPT_LIST"; + case NBD_OPT_STARTTLS: + return "NBD_OPT_STARTTLS"; + case NBD_OPT_INFO: + return "NBD_OPT_INFO"; + case NBD_OPT_GO: + return "NBD_OPT_GO"; + case NBD_OPT_STRUCTURED_REPLY: + return "NBD_OPT_STRUCTURED_REPLY"; + case NBD_OPT_LIST_META_CONTEXT: + return "NBD_OPT_LIST_META_CONTEXT"; + case NBD_OPT_SET_META_CONTEXT: + return "NBD_OPT_SET_META_CONTEXT"; + + default: return "unknown"; + } +} + +extern const char * +name_of_nbd_rep (int fl) +{ + switch (fl) { + case NBD_REP_ACK: + return "NBD_REP_ACK"; + case NBD_REP_SERVER: + return "NBD_REP_SERVER"; + case NBD_REP_INFO: + return "NBD_REP_INFO"; + case NBD_REP_META_CONTEXT: + return "NBD_REP_META_CONTEXT"; + case NBD_REP_ERR_UNSUP: + return "NBD_REP_ERR_UNSUP"; + case NBD_REP_ERR_POLICY: + return "NBD_REP_ERR_POLICY"; + case NBD_REP_ERR_INVALID: + return "NBD_REP_ERR_INVALID"; + case NBD_REP_ERR_PLATFORM: + return "NBD_REP_ERR_PLATFORM"; + case NBD_REP_ERR_TLS_REQD: + return "NBD_REP_ERR_TLS_REQD"; + case NBD_REP_ERR_UNKNOWN: + return "NBD_REP_ERR_UNKNOWN"; + case NBD_REP_ERR_SHUTDOWN: + return "NBD_REP_ERR_SHUTDOWN"; + case NBD_REP_ERR_BLOCK_SIZE_REQD: + return "NBD_REP_ERR_BLOCK_SIZE_REQD"; + case NBD_REP_ERR_TOO_BIG: + return "NBD_REP_ERR_TOO_BIG"; + + default: return "unknown"; + } +} + +extern const char * +name_of_nbd_reply (int fl) +{ + switch (fl) { + case NBD_REPLY_FLAG_DONE: + return "NBD_REPLY_FLAG_DONE"; + + default: return "unknown"; + } +} + +extern const char * +name_of_nbd_reply_type (int fl) +{ + switch (fl) { + case NBD_REPLY_TYPE_NONE: + return "NBD_REPLY_TYPE_NONE"; + case NBD_REPLY_TYPE_OFFSET_DATA: + return "NBD_REPLY_TYPE_OFFSET_DATA"; + case NBD_REPLY_TYPE_OFFSET_HOLE: + return "NBD_REPLY_TYPE_OFFSET_HOLE"; + case NBD_REPLY_TYPE_BLOCK_STATUS: + return "NBD_REPLY_TYPE_BLOCK_STATUS"; + case NBD_REPLY_TYPE_ERROR: + return "NBD_REPLY_TYPE_ERROR"; + case NBD_REPLY_TYPE_ERROR_OFFSET: + return "NBD_REPLY_TYPE_ERROR_OFFSET"; + + default: return "unknown"; + } +} + diff --git a/common/protocol/protostrings.h b/common/protocol/protostrings.h new file mode 100644 index 0000000..fda5dfa --- /dev/null +++ b/common/protocol/protostrings.h @@ -0,0 +1,51 @@ +/* nbdkit + * Copyright (C) 2018-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_PROTOSTRINGS_H +#define NBDKIT_PROTOSTRINGS_H + +/* The corresponding functions are generated by + * generate-protostrings.sh from the nbd-protocol.h header file. + */ + +extern const char *name_of_nbd_global_flag (int); +extern const char *name_of_nbd_flag (int); +extern const char *name_of_nbd_opt (int); +extern const char *name_of_nbd_rep (int); +extern const char *name_of_nbd_info (int); +extern const char *name_of_nbd_reply_flag (int); +extern const char *name_of_nbd_reply_type (int); +extern const char *name_of_nbd_cmd (int); +extern const char *name_of_nbd_cmd_flag (int); +extern const char *name_of_nbd_error (int); + +#endif /* NBDKIT_PROTOSTRINGS_H */ diff --git a/common/regions/Makefile.am b/common/regions/Makefile.am new file mode 100644 index 0000000..796bb95 --- /dev/null +++ b/common/regions/Makefile.am @@ -0,0 +1,45 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +noinst_LTLIBRARIES = libregions.la + +libregions_la_SOURCES = \ + regions.c \ + regions.h \ + $(NULL) +libregions_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include \ + -I$(top_srcdir)/common/utils \ + $(NULL) +libregions_la_CFLAGS = $(WARNINGS_CFLAGS) diff --git a/common/regions/Makefile.in b/common/regions/Makefile.in new file mode 100644 index 0000000..ff564fe --- /dev/null +++ b/common/regions/Makefile.in @@ -0,0 +1,781 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# nbdkit +# Copyright (C) 2013-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/common/regions/regions.c b/common/regions/regions.c new file mode 100644 index 0000000..bb7a278 --- /dev/null +++ b/common/regions/regions.c @@ -0,0 +1,171 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include + +#include + +#include "isaligned.h" +#include "regions.h" + +void +init_regions (regions *rs) +{ + *rs = (regions) empty_vector; +} + +void +free_regions (struct regions *rs) +{ + /* We don't need to free the data since that is not owned by the + * regions structure. + */ + free (rs->ptr); +} + +/* Find the region corresponding to the given offset. Use region->end + * to find the end of the region. + */ +static int +compare_offset (const void *offsetp, const struct region *region) +{ + const uint64_t offset = *(uint64_t *)offsetp; + + if (offset < region->start) return -1; + if (offset > region->end) return 1; + return 0; +} + +const struct region * +find_region (const regions *rs, uint64_t offset) +{ + return regions_search (rs, &offset, compare_offset); +} + +/* This is the low level function for constructing the list of + * regions. It appends one region to the list, checking that the + * invariants described above (about the regions being non-overlapping + * and contiguous) is maintained. Note it is not possible to + * construct regions out of order using this function. + */ +static int __attribute__((__nonnull__ (1))) +append_one_region (regions *rs, struct region region) +{ + /* The assertions in this function are meant to maintain the + * invariant about the array as described at the top of this file. + */ + assert (region.start == virtual_size (rs)); + assert (region.len > 0); + assert (region.end >= region.start); + assert (region.len == region.end - region.start + 1); + + if (regions_append (rs, region) == -1) { + nbdkit_error ("realloc: %m"); + return -1; + } + + return 0; +} + +static int +append_padding (regions *rs, uint64_t alignment) +{ + struct region region; + + assert (is_power_of_2 (alignment)); + + region.start = virtual_size (rs); + if (IS_ALIGNED (region.start, alignment)) + return 0; /* nothing to do */ + region.end = (region.start & ~(alignment-1)) + alignment - 1; + region.len = region.end - region.start + 1; + region.type = region_zero; + region.description = "padding"; + return append_one_region (rs, region); +} + +int +append_region_len (regions *rs, + const char *description, uint64_t len, + uint64_t pre_aligment, uint64_t post_alignment, + enum region_type type, ...) +{ + struct region region; + + /* Pre-alignment. */ + if (pre_aligment != 0) { + if (append_padding (rs, pre_aligment) == -1) + return -1; + assert (IS_ALIGNED (virtual_size (rs), pre_aligment)); + } + + /* Main region. */ + region.description = description; + region.start = virtual_size (rs); + region.len = len; + region.end = region.start + region.len - 1; + region.type = type; + if (type == region_file) { + va_list ap; + size_t i; + + va_start (ap, type); + i = va_arg (ap, size_t); + va_end (ap); + region.u.i = i; + } + else if (type == region_data) { + va_list ap; + const unsigned char *data; + + va_start (ap, type); + data = va_arg (ap, const unsigned char *); + va_end (ap); + region.u.data = data; + } + if (append_one_region (rs, region) == -1) + return -1; + + /* Post-alignment. */ + if (post_alignment != 0) { + if (append_padding (rs, post_alignment) == -1) + return -1; + assert (IS_ALIGNED (virtual_size (rs), post_alignment)); + } + + return 0; +} diff --git a/common/regions/regions.h b/common/regions/regions.h new file mode 100644 index 0000000..13fc41e --- /dev/null +++ b/common/regions/regions.h @@ -0,0 +1,137 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_REGIONS_H +#define NBDKIT_REGIONS_H + +#include +#include +#include + +#include "vector.h" + +/* This defines a very simple structure used to define the virtual + * disk in the partitioning and floppy plugins. + * + * We split the virtual disk into non-overlapping, contiguous regions. + * These are stored in an array, ordered by address. + * + * Each region can be one of several types, referring to a backing + * file, some data stored in memory, or zero padding. + */ + +/* Region type. */ +enum region_type { + region_file, /* contents of the i'th file */ + region_data, /* pointer to in-memory data */ + region_zero, /* padding */ +}; + +/* Region. */ +struct region { + uint64_t start, len, end; /* byte offsets; end = start + len - 1 */ + enum region_type type; + union { + size_t i; /* region_file: i'th file */ + const unsigned char *data; /* region_data: data */ + } u; + + /* Optional name or description of this region. This is not used by + * the regions code but can be added to regions to make debugging + * easier. + */ + const char *description; +}; + +/* Vector of struct region. */ +DEFINE_VECTOR_TYPE(regions, struct region); + +extern void init_regions (regions *regions) + __attribute__((__nonnull__ (1))); +extern void free_regions (regions *regions) + __attribute__((__nonnull__ (1))); + +/* Return the number of regions. */ +static inline size_t __attribute__((__nonnull__ (1))) +nr_regions (regions *rs) +{ + return rs->size; +} + +/* Return the virtual size of the disk. */ +static inline int64_t __attribute__((__nonnull__ (1))) +virtual_size (regions *rs) +{ + if (rs->size == 0) + return 0; + else + return rs->ptr[rs->size-1].end + 1; +} + +/* Look up the region corresponding to the given offset. If the + * offset is inside the disk image then this cannot return NULL. + */ +extern const struct region *find_region (const regions *regions, + uint64_t offset) + __attribute__((__nonnull__ (1))); + +/* Append one region of a given length, plus up to two optional + * padding regions. + * + * pre_aligment (if != 0) describes the required alignment of this + * region. A padding region of type region_zero is inserted before + * the main region if required. + * + * post_alignment (if != 0) describes the required alignment after + * this region. A padding region of type region_zero is inserted + * after the main region if required. + * + * If type == region_file, it must be followed by u.i parameter. + * If type == region_data, it must be followed by u.data parameter. + */ +extern int append_region_len (regions *regions, + const char *description, uint64_t len, + uint64_t pre_aligment, uint64_t post_alignment, + enum region_type type, ...); + +#if 0 +/* Same as append_region_len (above) but instead of specifying the + * size of the main region, specify the end byte as an offset. Note + * the end byte is included in the region, it's is NOT the end+1 byte. + */ +extern int append_region_end (regions *regions, + const char *description, uint64_t end, + uint64_t pre_aligment, uint64_t post_alignment, + enum region_type type, ...); +#endif + +#endif /* NBDKIT_REGIONS_H */ diff --git a/common/utils/Makefile.am b/common/utils/Makefile.am new file mode 100644 index 0000000..a621790 --- /dev/null +++ b/common/utils/Makefile.am @@ -0,0 +1,69 @@ +# nbdkit +# Copyright (C) 2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +noinst_LTLIBRARIES = libutils.la + +libutils_la_SOURCES = \ + cleanup.c \ + cleanup-nbdkit.c \ + cleanup.h \ + environ.c \ + quote.c \ + utils.c \ + utils.h \ + vector.c \ + vector.h \ + $(NULL) +libutils_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + $(NULL) +libutils_la_CFLAGS = \ + $(WARNINGS_CFLAGS) \ + $(PTHREAD_CFLAGS) \ + $(NULL) +libutils_la_LIBADD = \ + $(PTHREAD_LIBS) \ + $(NULL) + +# Unit tests. + +TESTS = test-quotes test-vector +check_PROGRAMS = test-quotes test-vector + +test_quotes_SOURCES = test-quotes.c quote.c utils.h +test_quotes_CPPFLAGS = -I$(srcdir) +test_quotes_CFLAGS = $(WARNINGS_CFLAGS) + +test_vector_SOURCES = test-vector.c vector.c vector.h +test_vector_CPPFLAGS = -I$(srcdir) +test_vector_CFLAGS = $(WARNINGS_CFLAGS) diff --git a/common/utils/Makefile.in b/common/utils/Makefile.in new file mode 100644 index 0000000..578642d --- /dev/null +++ b/common/utils/Makefile.in @@ -0,0 +1,1346 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# nbdkit +# Copyright (C) 2013-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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100644 index 0000000..e7553c7 --- /dev/null +++ b/common/utils/cleanup-nbdkit.c @@ -0,0 +1,51 @@ +/* nbdkit + * Copyright (C) 2013-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include + +#include "cleanup.h" +#include "nbdkit-filter.h" + +void +cleanup_extents_free (struct nbdkit_extents **ptr) +{ + nbdkit_extents_free (*ptr); +} + +void +cleanup_exports_free (struct nbdkit_exports **ptr) +{ + nbdkit_exports_free (*ptr); +} diff --git a/common/utils/cleanup.c b/common/utils/cleanup.c new file mode 100644 index 0000000..541a7a6 --- /dev/null +++ b/common/utils/cleanup.c @@ -0,0 +1,59 @@ +/* nbdkit + * Copyright (C) 2013-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include + +#include "cleanup.h" + +void +cleanup_free (void *ptr) +{ + free (* (void **) ptr); +} + +void +cleanup_mutex_unlock (pthread_mutex_t **ptr) +{ + int r = pthread_mutex_unlock (*ptr); + assert (!r); +} + +void +cleanup_rwlock_unlock (pthread_rwlock_t **ptr) +{ + int r = pthread_rwlock_unlock (*ptr); + assert (!r); +} diff --git a/common/utils/cleanup.h b/common/utils/cleanup.h new file mode 100644 index 0000000..6b59556 --- /dev/null +++ b/common/utils/cleanup.h @@ -0,0 +1,83 @@ +/* nbdkit + * Copyright (C) 2013-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_CLEANUP_H +#define NBDKIT_CLEANUP_H + +#include +#include + +/* https://stackoverflow.com/a/1597129 */ +#define XXUNIQUE_VAR(name, line) name ## line +#define XUNIQUE_VAR(name, line) XXUNIQUE_VAR (name, line) +#define UNIQUE_VAR(name) XUNIQUE_VAR (name, __LINE__) + +/* cleanup.c */ +extern void cleanup_free (void *ptr); +#define CLEANUP_FREE __attribute__((cleanup (cleanup_free))) + +extern void cleanup_mutex_unlock (pthread_mutex_t **ptr); +#define CLEANUP_MUTEX_UNLOCK __attribute__((cleanup (cleanup_mutex_unlock))) + +#define ACQUIRE_LOCK_FOR_CURRENT_SCOPE(mutex) \ + CLEANUP_MUTEX_UNLOCK pthread_mutex_t *UNIQUE_VAR(_lock) = mutex; \ + do { \ + int _r = pthread_mutex_lock (UNIQUE_VAR(_lock)); \ + assert (!_r); \ + } while (0) + +extern void cleanup_rwlock_unlock (pthread_rwlock_t **ptr); +#define CLEANUP_RWLOCK_UNLOCK __attribute__((cleanup (cleanup_rwlock_unlock))) + +#define ACQUIRE_WRLOCK_FOR_CURRENT_SCOPE(rwlock) \ + CLEANUP_RWLOCK_UNLOCK pthread_rwlock_t *UNIQUE_VAR(_rwlock) = rwlock; \ + do { \ + int _r = pthread_rwlock_wrlock (UNIQUE_VAR(_rwlock)); \ + assert (!_r); \ + } while (0) + +#define ACQUIRE_RDLOCK_FOR_CURRENT_SCOPE(rwlock) \ + CLEANUP_RWLOCK_UNLOCK pthread_rwlock_t *UNIQUE_VAR(_rwlock) = rwlock; \ + do { \ + int _r = pthread_rwlock_rdlock (UNIQUE_VAR(_rwlock)); \ + assert (!_r); \ + } while (0) + +/* cleanup-nbdkit.c */ +struct nbdkit_extents; +extern void cleanup_extents_free (struct nbdkit_extents **ptr); +#define CLEANUP_EXTENTS_FREE __attribute__((cleanup (cleanup_extents_free))) +struct nbdkit_exports; +extern void cleanup_exports_free (struct nbdkit_exports **ptr); +#define CLEANUP_EXPORTS_FREE __attribute__((cleanup (cleanup_exports_free))) + +#endif /* NBDKIT_CLEANUP_H */ diff --git a/common/utils/environ.c b/common/utils/environ.c new file mode 100644 index 0000000..e70976c --- /dev/null +++ b/common/utils/environ.c @@ -0,0 +1,119 @@ +/* nbdkit + * Copyright (C) 2018-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include + +#include + +#include "utils.h" +#include "vector.h" + +DEFINE_VECTOR_TYPE(environ_t, char *); + +/* Copy an environ. Also this allows you to add (key, value) pairs to + * the environ through the varargs NULL-terminated list. Returns NULL + * if the copy or allocation failed. + */ +char ** +copy_environ (char **env, ...) +{ + environ_t ret = empty_vector; + size_t i, len; + char *s; + va_list argp; + const char *key, *value; + + /* Copy the existing keys into the new vector. */ + for (i = 0; env[i] != NULL; ++i) { + s = strdup (env[i]); + if (s == NULL) { + nbdkit_error ("strdup: %m"); + goto error; + } + if (environ_t_append (&ret, s) == -1) { + nbdkit_error ("realloc: %m"); + goto error; + } + } + + /* Add the new keys. */ + va_start (argp, env); + while ((key = va_arg (argp, const char *)) != NULL) { + value = va_arg (argp, const char *); + if (asprintf (&s, "%s=%s", key, value) == -1) { + nbdkit_error ("asprintf: %m"); + va_end (argp); + goto error; + } + + /* Search for key in the existing environment. It's O(n^2) ... */ + len = strlen (key); + for (i = 0; i < ret.size; ++i) { + if (strncmp (key, ret.ptr[i], len) == 0 && ret.ptr[i][len] == '=') { + /* Replace the existing key. */ + free (ret.ptr[i]); + ret.ptr[i] = s; + goto found; + } + } + + /* Else, append a new key. */ + if (environ_t_append (&ret, s) == -1) { + nbdkit_error ("realloc: %m"); + va_end (argp); + free (s); + goto error; + } + + found: ; + } + va_end (argp); + + /* Append a NULL pointer. */ + if (environ_t_append (&ret, NULL) == -1) { + nbdkit_error ("realloc: %m"); + goto error; + } + + /* Return the list of strings. */ + return ret.ptr; + + error: + environ_t_iter (&ret, (void *) free); + free (ret.ptr); + return NULL; +} diff --git a/common/utils/quote.c b/common/utils/quote.c new file mode 100644 index 0000000..d52cf10 --- /dev/null +++ b/common/utils/quote.c @@ -0,0 +1,100 @@ +/* nbdkit + * Copyright (C) 2018-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include + +/* Print str to fp, shell quoting if necessary. This comes from + * libguestfs, but was written by me so I'm relicensing it to a BSD + * license for nbdkit. + */ +void +shell_quote (const char *str, FILE *fp) +{ + /* Note possible bug in this list (XXX): + * https://www.redhat.com/archives/libguestfs/2019-February/msg00036.html + */ + const char *safe_chars = + "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.-_=,:/"; + size_t i, len; + + /* If the string consists only of safe characters, output it as-is. */ + len = strlen (str); + if (len > 0 && len == strspn (str, safe_chars)) { + fputs (str, fp); + return; + } + + /* Double-quote the string. */ + fputc ('"', fp); + for (i = 0; i < len; ++i) { + switch (str[i]) { + case '$': case '`': case '\\': case '"': + fputc ('\\', fp); + /*FALLTHROUGH*/ + default: + fputc (str[i], fp); + } + } + fputc ('"', fp); +} + +/* Print str to fp, URI quoting if necessary. + * The resulting string is safe for use in a URI path or query component, + * and can be passed through the shell without further quoting. + */ +void +uri_quote (const char *str, FILE *fp) +{ + /* safe_chars contains the RFC 3986 unreserved characters plus '/'. */ + const char *safe_chars = + "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.-_~/"; + size_t i, len; + + /* If the string consists only of safe characters, output it as-is. */ + len = strlen (str); + if (len == strspn (str, safe_chars)) { + fputs (str, fp); + return; + } + + for (i = 0; i < len; ++i) { + if (strchr (safe_chars, str[i])) + fputc (str[i], fp); + else + fprintf (fp, "%%%02X", str[i] & 0xff); + } +} diff --git a/common/utils/test-quotes.c b/common/utils/test-quotes.c new file mode 100644 index 0000000..dbd17d2 --- /dev/null +++ b/common/utils/test-quotes.c @@ -0,0 +1,99 @@ +/* nbdkit + * Copyright (C) 2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* Unit tests of utils quoting code. */ + +#include + +#include +#include +#include +#undef NDEBUG /* Keep test strong even for nbdkit built without assertions */ +#include +#include + +#include "utils.h" + +static bool +test (const char *orig, const char *fnname, void (*fn) (const char *, FILE *), + const char *exp) +{ + char *str = NULL; + size_t str_len = 0; + FILE *fp; + + fp = open_memstream (&str, &str_len); + assert (fp); + fn (orig, fp); + if (fclose (fp) == EOF) + assert (false); + if (str_len == 0 && !str) + str = strdup (""); + assert (str); + + if (strcmp (str, exp)) { + fprintf (stderr, "%s failed, got '%s' expected '%s'\n", + fnname, str, exp); + free (str); + return true; + } + free (str); + return false; +} + +int +main (void) +{ + struct { + const char *orig; + const char *shell; + const char *uri; + } tests[] = { + { "a-b_c.0", "a-b_c.0", "a-b_c.0" }, + { "/Safe/Path", "/Safe/Path", "/Safe/Path" }, + { "a~b", "\"a~b\"", "a~b" }, + { "", "\"\"", "" }, + { "a=b", "a=b", "a%3Db" }, /* XXX shell wrong if used as argv[0] */ + { "a;b", "\"a;b\"", "a%3Bb" }, + { "a b", "\"a b\"", "a%20b" }, + { "a%b", "\"a%b\"", "a%25b" }, + { "a'b\"c$d`e\\f", "\"a'b\\\"c\\$d\\`e\\\\f\"", "a%27b%22c%24d%60e%5Cf" }, + }; + size_t i; + bool fail = false; + + for (i = 0; i < sizeof tests / sizeof tests[0]; i++) { + fail |= test (tests[i].orig, "shell_quote", shell_quote, tests[i].shell); + fail |= test (tests[i].orig, "uri_quote", uri_quote, tests[i].uri); + } + return fail ? EXIT_FAILURE : EXIT_SUCCESS; +} diff --git a/common/utils/test-vector.c b/common/utils/test-vector.c new file mode 100644 index 0000000..0e2a88e --- /dev/null +++ b/common/utils/test-vector.c @@ -0,0 +1,121 @@ +/* nbdkit + * Copyright (C) 2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#undef NDEBUG /* Keep test strong even for nbdkit built without assertions */ +#include + +#include "vector.h" + +DEFINE_VECTOR_TYPE(int64_vector, int64_t); +DEFINE_VECTOR_TYPE(string_vector, char *); + +static int +compare (const int64_t *a, const int64_t *b) +{ + return (*a > *b) - (*a < *b); +} + +static void +test_int64_vector (void) +{ + int64_vector v = empty_vector; + size_t i; + int r; + int64_t tmp, *p; + + for (i = 0; i < 10; ++i) { + r = int64_vector_insert (&v, i, 0); + assert (r == 0); + } + + for (i = 0; i < 10; ++i) + assert (v.ptr[i] == 9 - i); + int64_vector_sort (&v, compare); + for (i = 0; i < 10; ++i) + assert (v.ptr[i] == i); + + int64_vector_remove (&v, 1); + assert (v.size == 9); + assert (v.ptr[1] == 2); + + tmp = 10; + p = int64_vector_search (&v, &tmp, (void*) compare); + assert (p == NULL); + tmp = 8; + p = int64_vector_search (&v, &tmp, (void*) compare); + assert (p == &v.ptr[7]); + + free (v.ptr); +} + +static void +test_string_vector (void) +{ + string_vector v = empty_vector; + size_t i; + int r; + + for (i = 0; i < 10; ++i) { + char *s; + + r = asprintf (&s, "number %zu", i); + assert (r >= 0); + r = string_vector_append (&v, s); + assert (r == 0); + } + /* NULL-terminate the strings. */ + r = string_vector_append (&v, NULL); + assert (r == 0); + + /* Now print them. */ + for (i = 0; v.ptr[i] != NULL; ++i) + printf ("%s\n", v.ptr[i]); + assert (i == 10); + + /* And free them. We can use the generated iter function here + * even though it calls free on the final NULL pointer. + */ + string_vector_iter (&v, (void*)free); + free (v.ptr); +} + +int +main (int argc, char *argv[]) +{ + test_int64_vector (); + test_string_vector (); +} diff --git a/common/utils/utils.c b/common/utils/utils.c new file mode 100644 index 0000000..0da5472 --- /dev/null +++ b/common/utils/utils.c @@ -0,0 +1,131 @@ +/* nbdkit + * Copyright (C) 2018-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include + +#include + +/* Convert exit status to nbd_error. If the exit status was nonzero + * or another failure then -1 is returned. + */ +int +exit_status_to_nbd_error (int status, const char *cmd) +{ + if (WIFEXITED (status) && WEXITSTATUS (status) != 0) { + nbdkit_error ("%s: command failed with exit code %d", + cmd, WEXITSTATUS (status)); + return -1; + } + else if (WIFSIGNALED (status)) { + nbdkit_error ("%s: command was killed by signal %d", + cmd, WTERMSIG (status)); + return -1; + } + else if (WIFSTOPPED (status)) { + nbdkit_error ("%s: command was stopped by signal %d", + cmd, WSTOPSIG (status)); + return -1; + } + + return 0; +} + +/* Set the FD_CLOEXEC flag on the given fd, if it is non-negative. + * On failure, close fd and return -1; on success, return fd. + * + * Note that this function should ONLY be used on platforms that lack + * atomic CLOEXEC support during fd creation (such as Haiku in 2019); + * when using it as a fallback path, you must also consider how to + * prevent fd leaks to plugins that want to fork(). + */ +int +set_cloexec (int fd) +{ +#if (defined SOCK_CLOEXEC && defined HAVE_MKOSTEMP && defined HAVE_PIPE2 && \ + defined HAVE_ACCEPT4) + nbdkit_error ("prefer creating fds with CLOEXEC atomically set"); + close (fd); + errno = EBADF; + return -1; +#else +# if (defined SOCK_CLOEXEC || defined HAVE_MKOSTEMP || defined HAVE_PIPE2 || \ + defined HAVE_ACCEPT4) +# error "Unexpected: your system has incomplete atomic CLOEXEC support" +# endif + int f; + int err; + + if (fd == -1) + return -1; + + f = fcntl (fd, F_GETFD); + if (f == -1 || fcntl (fd, F_SETFD, f | FD_CLOEXEC) == -1) { + err = errno; + nbdkit_error ("fcntl: %m"); + close (fd); + errno = err; + return -1; + } + return fd; +#endif +} + +/* Set the O_NONBLOCK flag on the given fd, if it is non-negative. + * On failure, close fd and return -1; on success, return fd. + */ +int +set_nonblock (int fd) +{ + int f; + int err; + + if (fd == -1) + return -1; + + f = fcntl (fd, F_GETFL); + if (f == -1 || fcntl (fd, F_SETFL, f | O_NONBLOCK) == -1) { + err = errno; + nbdkit_error ("fcntl: %m"); + close (fd); + errno = err; + return -1; + } + return fd; +} diff --git a/common/utils/utils.h b/common/utils/utils.h new file mode 100644 index 0000000..3e0ba4a --- /dev/null +++ b/common/utils/utils.h @@ -0,0 +1,43 @@ +/* nbdkit + * Copyright (C) 2018-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_UTILS_H +#define NBDKIT_UTILS_H + +extern void shell_quote (const char *str, FILE *fp); +extern void uri_quote (const char *str, FILE *fp); +extern int exit_status_to_nbd_error (int status, const char *cmd); +extern int set_cloexec (int fd); +extern int set_nonblock (int fd); +extern char **copy_environ (char **env, ...) __attribute__((__sentinel__)); + +#endif /* NBDKIT_UTILS_H */ diff --git a/common/utils/vector.c b/common/utils/vector.c new file mode 100644 index 0000000..00cd254 --- /dev/null +++ b/common/utils/vector.c @@ -0,0 +1,51 @@ +/* nbdkit + * Copyright (C) 2018-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include + +#include "vector.h" + +int +generic_vector_reserve (struct generic_vector *v, size_t n, size_t itemsize) +{ + void *newptr; + + newptr = realloc (v->ptr, (n + v->alloc) * itemsize); + if (newptr == NULL) + return -1; + v->ptr = newptr; + v->alloc += n; + return 0; +} diff --git a/common/utils/vector.h b/common/utils/vector.h new file mode 100644 index 0000000..6468fd9 --- /dev/null +++ b/common/utils/vector.h @@ -0,0 +1,177 @@ +/* nbdkit + * Copyright (C) 2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* Simple implementation of a vector. It can be cheaply appended, and + * more expensively inserted. There are two main use-cases we + * consider: lists of strings (either with a defined length, or + * NULL-terminated), and lists of numbers. It is generic so could be + * used for lists of anything (eg. structs) where being able to append + * easily is important. + */ + +#ifndef NBDKIT_VECTOR_H +#define NBDKIT_VECTOR_H + +#include +#include + +/* Use of this macro defines a new type called ‘name’ containing an + * extensible vector of ‘type’ elements. For example: + * + * DEFINE_VECTOR_TYPE(string_vector, char *) + * + * defines a new type called ‘string_vector’ as a vector of ‘char *’. + * You can create variables of this type: + * + * string_vector names = empty_vector; + * + * where ‘names.ptr[]’ will be an array of strings and ‘names.size’ + * will be the number of strings. There are no get/set accessors. To + * iterate over the strings you can use the ‘.ptr’ field directly: + * + * for (size_t i = 0; i < names.size; ++i) + * printf ("%s\n", names.ptr[i]); + * + * Initializing with ‘empty_vector’ sets ‘.ptr = NULL’ and ‘.size = 0’. + * + * DEFINE_VECTOR_TYPE also defines utility functions. For the full + * list see the definition below, but useful functions include: + * + * ‘name’_append (eg. ‘string_vector_append’) + * - Append a new element at the end. This operation is cheap. + * + * ‘name’_insert (eg. ‘string_vector_insert’) + * - Insert a new element at the beginning, middle or end. This + * operation is more expensive because existing elements may need + * to be copied around. + * + * Both functions extend the vector if required, and so both may fail + * (returning -1) which you must check for. + */ +#define DEFINE_VECTOR_TYPE(name, type) \ + struct name { \ + type *ptr; /* Pointer to array of items. */ \ + size_t size; /* Number of valid items in the array. */ \ + size_t alloc; /* Number of items allocated. */ \ + }; \ + typedef struct name name; \ + \ + /* Reserve n elements at the end of the vector. Note space is \ + * allocated but the vector size is not increased and the new \ + * elements are not initialized. \ + */ \ + static inline int \ + name##_reserve (name *v, size_t n) \ + { \ + return generic_vector_reserve ((struct generic_vector *)v, n, \ + sizeof (type)); \ + } \ + \ + /* Insert at i'th element. i=0 => beginning i=size => append */ \ + static inline int \ + name##_insert (name *v, type elem, size_t i) \ + { \ + assert (i <= v->size); \ + if (v->size >= v->alloc) { \ + if (name##_reserve (v, 1) == -1) return -1; \ + } \ + memmove (&v->ptr[i+1], &v->ptr[i], (v->size-i) * sizeof (elem)); \ + v->ptr[i] = elem; \ + v->size++; \ + return 0; \ + } \ + \ + /* Append a new element to the end of the vector. */ \ + static inline int \ + name##_append (name *v, type elem) \ + { \ + return name##_insert (v, elem, v->size); \ + } \ + \ + /* Remove i'th element. i=0 => beginning i=size-1 => end */ \ + static inline void \ + name##_remove (name *v, size_t i) \ + { \ + assert (i < v->size); \ + memmove (&v->ptr[i], &v->ptr[i+1], (v->size-i) * sizeof (type)); \ + v->size--; \ + } \ + \ + /* Remove all elements and deallocate the vector. */ \ + static inline void \ + name##_reset (name *v) \ + { \ + free (v->ptr); \ + v->ptr = NULL; \ + v->size = v->alloc = 0; \ + } \ + \ + /* Iterate over the vector, calling f() on each element. */ \ + static inline void \ + name##_iter (name *v, void (*f) (type elem)) \ + { \ + size_t i; \ + for (i = 0; i < v->size; ++i) \ + f (v->ptr[i]); \ + } \ + \ + /* Sort the elements of the vector. */ \ + static inline void \ + name##_sort (name *v, \ + int (*compare) (const type *p1, const type *p2)) \ + { \ + qsort (v->ptr, v->size, sizeof (type), (void *) compare); \ + } \ + \ + /* Search for an exactly matching element in the vector using a \ + * binary search. Returns a pointer to the element or NULL. \ + */ \ + static inline type * \ + name##_search (const name *v, const void *key, \ + int (*compare) (const void *key, const type *v)) \ + { \ + return bsearch (key, v->ptr, v->size, sizeof (type), \ + (void *) compare); \ + } + +#define empty_vector { .ptr = NULL, .size = 0, .alloc = 0 } + +struct generic_vector { + void *ptr; + size_t size; + size_t alloc; +}; + +extern int generic_vector_reserve (struct generic_vector *v, + size_t n, size_t itemsize); + +#endif /* NBDKIT_VECTOR_H */ diff --git a/compile b/compile new file mode 100755 index 0000000..99e5052 --- /dev/null +++ b/compile @@ -0,0 +1,348 @@ +#! /bin/sh +# Wrapper for compilers which do not understand '-c -o'. + +scriptversion=2018-03-07.03; # UTC + +# Copyright (C) 1999-2018 Free Software Foundation, Inc. +# Written by Tom Tromey . +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program that contains a +# configuration script generated by Autoconf, you may include it under +# the same distribution terms that you use for the rest of that program. + +# This file is maintained in Automake, please report +# bugs to or send patches to +# . + +nl=' +' + +# We need space, tab and new line, in precisely that order. Quoting is +# there to prevent tools from complaining about whitespace usage. +IFS=" "" $nl" + +file_conv= + +# func_file_conv build_file lazy +# Convert a $build file to $host form and store it in $file +# Currently only supports Windows hosts. If the determined conversion +# type is listed in (the comma separated) LAZY, no conversion will +# take place. +func_file_conv () +{ + file=$1 + case $file in + / | /[!/]*) # absolute file, and not a UNC file + if test -z "$file_conv"; then + # lazily determine how to convert abs files + case `uname -s` in + MINGW*) + file_conv=mingw + ;; + CYGWIN*) + file_conv=cygwin + ;; + *) + file_conv=wine + ;; + esac + fi + case $file_conv/,$2, in + *,$file_conv,*) + ;; + mingw/*) + file=`cmd //C echo "$file " | sed -e 's/"\(.*\) " *$/\1/'` + ;; + cygwin/*) + file=`cygpath -m "$file" || echo "$file"` + ;; + wine/*) + file=`winepath -w "$file" || echo "$file"` + ;; + esac + ;; + esac +} + +# func_cl_dashL linkdir +# Make cl look for libraries in LINKDIR +func_cl_dashL () +{ + func_file_conv "$1" + if test -z "$lib_path"; then + lib_path=$file + else + lib_path="$lib_path;$file" + fi + linker_opts="$linker_opts -LIBPATH:$file" +} + +# func_cl_dashl library +# Do a library search-path lookup for cl +func_cl_dashl () +{ + lib=$1 + found=no + save_IFS=$IFS + IFS=';' + for dir in $lib_path $LIB + do + IFS=$save_IFS + if $shared && test -f "$dir/$lib.dll.lib"; then + found=yes + lib=$dir/$lib.dll.lib + break + fi + if test -f "$dir/$lib.lib"; then + found=yes + lib=$dir/$lib.lib + break + fi + if test -f "$dir/lib$lib.a"; then + found=yes + lib=$dir/lib$lib.a + break + fi + done + IFS=$save_IFS + + if test "$found" != yes; then + lib=$lib.lib + fi +} + +# func_cl_wrapper cl arg... +# Adjust compile command to suit cl +func_cl_wrapper () +{ + # Assume a capable shell + lib_path= + shared=: + linker_opts= + for arg + do + if test -n "$eat"; then + eat= + else + case $1 in + -o) + # configure might choose to run compile as 'compile cc -o foo foo.c'. + eat=1 + case $2 in + *.o | *.[oO][bB][jJ]) + func_file_conv "$2" + set x "$@" -Fo"$file" + shift + ;; + *) + func_file_conv "$2" + set x "$@" -Fe"$file" + shift + ;; + esac + ;; + -I) + eat=1 + func_file_conv "$2" mingw + set x "$@" -I"$file" + shift + ;; + -I*) + func_file_conv "${1#-I}" mingw + set x "$@" -I"$file" + shift + ;; + -l) + eat=1 + func_cl_dashl "$2" + set x "$@" "$lib" + shift + ;; + -l*) + func_cl_dashl "${1#-l}" + set x "$@" "$lib" + shift + ;; + -L) + eat=1 + func_cl_dashL "$2" + ;; + -L*) + func_cl_dashL "${1#-L}" + ;; + -static) + shared=false + ;; + -Wl,*) + arg=${1#-Wl,} + save_ifs="$IFS"; IFS=',' + for flag in $arg; do + IFS="$save_ifs" + linker_opts="$linker_opts $flag" + done + IFS="$save_ifs" + ;; + -Xlinker) + eat=1 + linker_opts="$linker_opts $2" + ;; + -*) + set x "$@" "$1" + shift + ;; + *.cc | *.CC | *.cxx | *.CXX | *.[cC]++) + func_file_conv "$1" + set x "$@" -Tp"$file" + shift + ;; + *.c | *.cpp | *.CPP | *.lib | *.LIB | *.Lib | *.OBJ | *.obj | *.[oO]) + func_file_conv "$1" mingw + set x "$@" "$file" + shift + ;; + *) + set x "$@" "$1" + shift + ;; + esac + fi + shift + done + if test -n "$linker_opts"; then + linker_opts="-link$linker_opts" + fi + exec "$@" $linker_opts + exit 1 +} + +eat= + +case $1 in + '') + echo "$0: No command. Try '$0 --help' for more information." 1>&2 + exit 1; + ;; + -h | --h*) + cat <<\EOF +Usage: compile [--help] [--version] PROGRAM [ARGS] + +Wrapper for compilers which do not understand '-c -o'. +Remove '-o dest.o' from ARGS, run PROGRAM with the remaining +arguments, and rename the output as expected. + +If you are trying to build a whole package this is not the +right script to run: please start by reading the file 'INSTALL'. + +Report bugs to . +EOF + exit $? + ;; + -v | --v*) + echo "compile $scriptversion" + exit $? + ;; + cl | *[/\\]cl | cl.exe | *[/\\]cl.exe | \ + icl | *[/\\]icl | icl.exe | *[/\\]icl.exe ) + func_cl_wrapper "$@" # Doesn't return... + ;; +esac + +ofile= +cfile= + +for arg +do + if test -n "$eat"; then + eat= + else + case $1 in + -o) + # configure might choose to run compile as 'compile cc -o foo foo.c'. + # So we strip '-o arg' only if arg is an object. + eat=1 + case $2 in + *.o | *.obj) + ofile=$2 + ;; + *) + set x "$@" -o "$2" + shift + ;; + esac + ;; + *.c) + cfile=$1 + set x "$@" "$1" + shift + ;; + *) + set x "$@" "$1" + shift + ;; + esac + fi + shift +done + +if test -z "$ofile" || test -z "$cfile"; then + # If no '-o' option was seen then we might have been invoked from a + # pattern rule where we don't need one. That is ok -- this is a + # normal compilation that the losing compiler can handle. If no + # '.c' file was seen then we are probably linking. That is also + # ok. + exec "$@" +fi + +# Name of file we expect compiler to create. +cofile=`echo "$cfile" | sed 's|^.*[\\/]||; s|^[a-zA-Z]:||; s/\.c$/.o/'` + +# Create the lock directory. +# Note: use '[/\\:.-]' here to ensure that we don't use the same name +# that we are using for the .o file. Also, base the name on the expected +# object file name, since that is what matters with a parallel build. +lockdir=`echo "$cofile" | sed -e 's|[/\\:.-]|_|g'`.d +while true; do + if mkdir "$lockdir" >/dev/null 2>&1; then + break + fi + sleep 1 +done +# FIXME: race condition here if user kills between mkdir and trap. +trap "rmdir '$lockdir'; exit 1" 1 2 15 + +# Run the compile. +"$@" +ret=$? + +if test -f "$cofile"; then + test "$cofile" = "$ofile" || mv "$cofile" "$ofile" +elif test -f "${cofile}bj"; then + test "${cofile}bj" = "$ofile" || mv "${cofile}bj" "$ofile" +fi + +rmdir "$lockdir" +exit $ret + +# Local Variables: +# mode: shell-script +# sh-indentation: 2 +# eval: (add-hook 'before-save-hook 'time-stamp) +# time-stamp-start: "scriptversion=" +# time-stamp-format: "%:y-%02m-%02d.%02H" +# time-stamp-time-zone: "UTC0" +# time-stamp-end: "; # UTC" +# End: diff --git a/config.guess b/config.guess new file mode 100755 index 0000000..b33c9e8 --- /dev/null +++ b/config.guess @@ -0,0 +1,1486 @@ +#! /bin/sh +# Attempt to guess a canonical system name. +# Copyright 1992-2018 Free Software Foundation, Inc. + +timestamp='2018-08-29' + +# This file is free software; you can redistribute it and/or modify it +# under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, see . +# +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program that contains a +# configuration script generated by Autoconf, you may include it under +# the same distribution terms that you use for the rest of that +# program. This Exception is an additional permission under section 7 +# of the GNU General Public License, version 3 ("GPLv3"). +# +# Originally written by Per Bothner; maintained since 2000 by Ben Elliston. +# +# You can get the latest version of this script from: +# https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess +# +# Please send patches to . + + +me=`echo "$0" | sed -e 's,.*/,,'` + +usage="\ +Usage: $0 [OPTION] + +Output the configuration name of the system \`$me' is run on. + +Options: + -h, --help print this help, then exit + -t, --time-stamp print date of last modification, then exit + -v, --version print version number, then exit + +Report bugs and patches to ." + +version="\ +GNU config.guess ($timestamp) + +Originally written by Per Bothner. +Copyright 1992-2018 Free Software Foundation, Inc. + +This is free software; see the source for copying conditions. There is NO +warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE." + +help=" +Try \`$me --help' for more information." + +# Parse command line +while test $# -gt 0 ; do + case $1 in + --time-stamp | --time* | -t ) + echo "$timestamp" ; exit ;; + --version | -v ) + echo "$version" ; exit ;; + --help | --h* | -h ) + echo "$usage"; exit ;; + -- ) # Stop option processing + shift; break ;; + - ) # Use stdin as input. + break ;; + -* ) + echo "$me: invalid option $1$help" >&2 + exit 1 ;; + * ) + break ;; + esac +done + +if test $# != 0; then + echo "$me: too many arguments$help" >&2 + exit 1 +fi + +# CC_FOR_BUILD -- compiler used by this script. Note that the use of a +# compiler to aid in system detection is discouraged as it requires +# temporary files to be created and, as you can see below, it is a +# headache to deal with in a portable fashion. + +# Historically, `CC_FOR_BUILD' used to be named `HOST_CC'. We still +# use `HOST_CC' if defined, but it is deprecated. + +# Portable tmp directory creation inspired by the Autoconf team. + +tmp= +# shellcheck disable=SC2172 +trap 'test -z "$tmp" || rm -fr "$tmp"' 1 2 13 15 +trap 'exitcode=$?; test -z "$tmp" || rm -fr "$tmp"; exit $exitcode' 0 + +set_cc_for_build() { + : "${TMPDIR=/tmp}" + # shellcheck disable=SC2039 + { tmp=`(umask 077 && mktemp -d "$TMPDIR/cgXXXXXX") 2>/dev/null` && test -n "$tmp" && test -d "$tmp" ; } || + { test -n "$RANDOM" && tmp=$TMPDIR/cg$$-$RANDOM && (umask 077 && mkdir "$tmp" 2>/dev/null) ; } || + { tmp=$TMPDIR/cg-$$ && (umask 077 && mkdir "$tmp" 2>/dev/null) && echo "Warning: creating insecure temp directory" >&2 ; } || + { echo "$me: cannot create a temporary directory in $TMPDIR" >&2 ; exit 1 ; } + dummy=$tmp/dummy + case ${CC_FOR_BUILD-},${HOST_CC-},${CC-} in + ,,) echo "int x;" > "$dummy.c" + for driver in cc gcc c89 c99 ; do + if ($driver -c -o "$dummy.o" "$dummy.c") >/dev/null 2>&1 ; then + CC_FOR_BUILD="$driver" + break + fi + done + if test x"$CC_FOR_BUILD" = x ; then + CC_FOR_BUILD=no_compiler_found + fi + ;; + ,,*) CC_FOR_BUILD=$CC ;; + ,*,*) CC_FOR_BUILD=$HOST_CC ;; + esac +} + +# This is needed to find uname on a Pyramid OSx when run in the BSD universe. +# (ghazi@noc.rutgers.edu 1994-08-24) +if test -f /.attbin/uname ; then + PATH=$PATH:/.attbin ; export PATH +fi + +UNAME_MACHINE=`(uname -m) 2>/dev/null` || UNAME_MACHINE=unknown +UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown +UNAME_SYSTEM=`(uname -s) 2>/dev/null` || UNAME_SYSTEM=unknown +UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown + +case "$UNAME_SYSTEM" in +Linux|GNU|GNU/*) + # If the system lacks a compiler, then just pick glibc. + # We could probably try harder. + LIBC=gnu + + set_cc_for_build + cat <<-EOF > "$dummy.c" + #include + #if defined(__UCLIBC__) + LIBC=uclibc + #elif defined(__dietlibc__) + LIBC=dietlibc + #else + LIBC=gnu + #endif + EOF + eval "`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^LIBC' | sed 's, ,,g'`" + + # If ldd exists, use it to detect musl libc. + if command -v ldd >/dev/null && \ + ldd --version 2>&1 | grep -q ^musl + then + LIBC=musl + fi + ;; +esac + +# Note: order is significant - the case branches are not exclusive. + +case "$UNAME_MACHINE:$UNAME_SYSTEM:$UNAME_RELEASE:$UNAME_VERSION" in + *:NetBSD:*:*) + # NetBSD (nbsd) targets should (where applicable) match one or + # more of the tuples: *-*-netbsdelf*, *-*-netbsdaout*, + # *-*-netbsdecoff* and *-*-netbsd*. For targets that recently + # switched to ELF, *-*-netbsd* would select the old + # object file format. This provides both forward + # compatibility and a consistent mechanism for selecting the + # object file format. + # + # Note: NetBSD doesn't particularly care about the vendor + # portion of the name. We always set it to "unknown". + sysctl="sysctl -n hw.machine_arch" + UNAME_MACHINE_ARCH=`(uname -p 2>/dev/null || \ + "/sbin/$sysctl" 2>/dev/null || \ + "/usr/sbin/$sysctl" 2>/dev/null || \ + echo unknown)` + case "$UNAME_MACHINE_ARCH" in + armeb) machine=armeb-unknown ;; + arm*) machine=arm-unknown ;; + sh3el) machine=shl-unknown ;; + sh3eb) machine=sh-unknown ;; + sh5el) machine=sh5le-unknown ;; + earmv*) + arch=`echo "$UNAME_MACHINE_ARCH" | sed -e 's,^e\(armv[0-9]\).*$,\1,'` + endian=`echo "$UNAME_MACHINE_ARCH" | sed -ne 's,^.*\(eb\)$,\1,p'` + machine="${arch}${endian}"-unknown + ;; + *) machine="$UNAME_MACHINE_ARCH"-unknown ;; + esac + # The Operating System including object format, if it has switched + # to ELF recently (or will in the future) and ABI. + case "$UNAME_MACHINE_ARCH" in + earm*) + os=netbsdelf + ;; + arm*|i386|m68k|ns32k|sh3*|sparc|vax) + set_cc_for_build + if echo __ELF__ | $CC_FOR_BUILD -E - 2>/dev/null \ + | grep -q __ELF__ + then + # Once all utilities can be ECOFF (netbsdecoff) or a.out (netbsdaout). + # Return netbsd for either. FIX? + os=netbsd + else + os=netbsdelf + fi + ;; + *) + os=netbsd + ;; + esac + # Determine ABI tags. + case "$UNAME_MACHINE_ARCH" in + earm*) + expr='s/^earmv[0-9]/-eabi/;s/eb$//' + abi=`echo "$UNAME_MACHINE_ARCH" | sed -e "$expr"` + ;; + esac + # The OS release + # Debian GNU/NetBSD machines have a different userland, and + # thus, need a distinct triplet. However, they do not need + # kernel version information, so it can be replaced with a + # suitable tag, in the style of linux-gnu. + case "$UNAME_VERSION" in + Debian*) + release='-gnu' + ;; + *) + release=`echo "$UNAME_RELEASE" | sed -e 's/[-_].*//' | cut -d. -f1,2` + ;; + esac + # Since CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM: + # contains redundant information, the shorter form: + # CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used. + echo "$machine-${os}${release}${abi-}" + exit ;; + *:Bitrig:*:*) + UNAME_MACHINE_ARCH=`arch | sed 's/Bitrig.//'` + echo "$UNAME_MACHINE_ARCH"-unknown-bitrig"$UNAME_RELEASE" + exit ;; + *:OpenBSD:*:*) + UNAME_MACHINE_ARCH=`arch | sed 's/OpenBSD.//'` + echo "$UNAME_MACHINE_ARCH"-unknown-openbsd"$UNAME_RELEASE" + exit ;; + *:LibertyBSD:*:*) + UNAME_MACHINE_ARCH=`arch | sed 's/^.*BSD\.//'` + echo "$UNAME_MACHINE_ARCH"-unknown-libertybsd"$UNAME_RELEASE" + exit ;; + *:MidnightBSD:*:*) + echo "$UNAME_MACHINE"-unknown-midnightbsd"$UNAME_RELEASE" + exit ;; + *:ekkoBSD:*:*) + echo "$UNAME_MACHINE"-unknown-ekkobsd"$UNAME_RELEASE" + exit ;; + *:SolidBSD:*:*) + echo "$UNAME_MACHINE"-unknown-solidbsd"$UNAME_RELEASE" + exit ;; + macppc:MirBSD:*:*) + echo powerpc-unknown-mirbsd"$UNAME_RELEASE" + exit ;; + *:MirBSD:*:*) + echo "$UNAME_MACHINE"-unknown-mirbsd"$UNAME_RELEASE" + exit ;; + *:Sortix:*:*) + echo "$UNAME_MACHINE"-unknown-sortix + exit ;; + *:Redox:*:*) + echo "$UNAME_MACHINE"-unknown-redox + exit ;; + mips:OSF1:*.*) + echo mips-dec-osf1 + exit ;; + alpha:OSF1:*:*) + case $UNAME_RELEASE in + *4.0) + UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $3}'` + ;; + *5.*) + UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $4}'` + ;; + esac + # According to Compaq, /usr/sbin/psrinfo has been available on + # OSF/1 and Tru64 systems produced since 1995. I hope that + # covers most systems running today. This code pipes the CPU + # types through head -n 1, so we only detect the type of CPU 0. + ALPHA_CPU_TYPE=`/usr/sbin/psrinfo -v | sed -n -e 's/^ The alpha \(.*\) processor.*$/\1/p' | head -n 1` + case "$ALPHA_CPU_TYPE" in + "EV4 (21064)") + UNAME_MACHINE=alpha ;; + "EV4.5 (21064)") + UNAME_MACHINE=alpha ;; + "LCA4 (21066/21068)") + UNAME_MACHINE=alpha ;; + "EV5 (21164)") + UNAME_MACHINE=alphaev5 ;; + "EV5.6 (21164A)") + UNAME_MACHINE=alphaev56 ;; + "EV5.6 (21164PC)") + UNAME_MACHINE=alphapca56 ;; + "EV5.7 (21164PC)") + UNAME_MACHINE=alphapca57 ;; + "EV6 (21264)") + UNAME_MACHINE=alphaev6 ;; + "EV6.7 (21264A)") + UNAME_MACHINE=alphaev67 ;; + "EV6.8CB (21264C)") + UNAME_MACHINE=alphaev68 ;; + "EV6.8AL (21264B)") + UNAME_MACHINE=alphaev68 ;; + "EV6.8CX (21264D)") + UNAME_MACHINE=alphaev68 ;; + "EV6.9A (21264/EV69A)") + UNAME_MACHINE=alphaev69 ;; + "EV7 (21364)") + UNAME_MACHINE=alphaev7 ;; + "EV7.9 (21364A)") + UNAME_MACHINE=alphaev79 ;; + esac + # A Pn.n version is a patched version. + # A Vn.n version is a released version. + # A Tn.n version is a released field test version. + # A Xn.n version is an unreleased experimental baselevel. + # 1.2 uses "1.2" for uname -r. + echo "$UNAME_MACHINE"-dec-osf"`echo "$UNAME_RELEASE" | sed -e 's/^[PVTX]//' | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz`" + # Reset EXIT trap before exiting to avoid spurious non-zero exit code. + exitcode=$? + trap '' 0 + exit $exitcode ;; + Amiga*:UNIX_System_V:4.0:*) + echo m68k-unknown-sysv4 + exit ;; + *:[Aa]miga[Oo][Ss]:*:*) + echo "$UNAME_MACHINE"-unknown-amigaos + exit ;; + *:[Mm]orph[Oo][Ss]:*:*) + echo "$UNAME_MACHINE"-unknown-morphos + exit ;; + *:OS/390:*:*) + echo i370-ibm-openedition + exit ;; + *:z/VM:*:*) + echo s390-ibm-zvmoe + exit ;; + *:OS400:*:*) + echo powerpc-ibm-os400 + exit ;; + arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*) + echo arm-acorn-riscix"$UNAME_RELEASE" + exit ;; + arm*:riscos:*:*|arm*:RISCOS:*:*) + echo arm-unknown-riscos + exit ;; + SR2?01:HI-UX/MPP:*:* | SR8000:HI-UX/MPP:*:*) + echo hppa1.1-hitachi-hiuxmpp + exit ;; + Pyramid*:OSx*:*:* | MIS*:OSx*:*:* | MIS*:SMP_DC-OSx*:*:*) + # akee@wpdis03.wpafb.af.mil (Earle F. Ake) contributed MIS and NILE. + if test "`(/bin/universe) 2>/dev/null`" = att ; then + echo pyramid-pyramid-sysv3 + else + echo pyramid-pyramid-bsd + fi + exit ;; + NILE*:*:*:dcosx) + echo pyramid-pyramid-svr4 + exit ;; + DRS?6000:unix:4.0:6*) + echo sparc-icl-nx6 + exit ;; + DRS?6000:UNIX_SV:4.2*:7* | DRS?6000:isis:4.2*:7*) + case `/usr/bin/uname -p` in + sparc) echo sparc-icl-nx7; exit ;; + esac ;; + s390x:SunOS:*:*) + echo "$UNAME_MACHINE"-ibm-solaris2"`echo "$UNAME_RELEASE" | sed -e 's/[^.]*//'`" + exit ;; + sun4H:SunOS:5.*:*) + echo sparc-hal-solaris2"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`" + exit ;; + sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*) + echo sparc-sun-solaris2"`echo "$UNAME_RELEASE" | sed -e 's/[^.]*//'`" + exit ;; + i86pc:AuroraUX:5.*:* | i86xen:AuroraUX:5.*:*) + echo i386-pc-auroraux"$UNAME_RELEASE" + exit ;; + i86pc:SunOS:5.*:* | i86xen:SunOS:5.*:*) + UNAME_REL="`echo "$UNAME_RELEASE" | sed -e 's/[^.]*//'`" + case `isainfo -b` in + 32) + echo i386-pc-solaris2"$UNAME_REL" + ;; + 64) + echo x86_64-pc-solaris2"$UNAME_REL" + ;; + esac + exit ;; + sun4*:SunOS:6*:*) + # According to config.sub, this is the proper way to canonicalize + # SunOS6. Hard to guess exactly what SunOS6 will be like, but + # it's likely to be more like Solaris than SunOS4. + echo sparc-sun-solaris3"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`" + exit ;; + sun4*:SunOS:*:*) + case "`/usr/bin/arch -k`" in + Series*|S4*) + UNAME_RELEASE=`uname -v` + ;; + esac + # Japanese Language versions have a version number like `4.1.3-JL'. + echo sparc-sun-sunos"`echo "$UNAME_RELEASE"|sed -e 's/-/_/'`" + exit ;; + sun3*:SunOS:*:*) + echo m68k-sun-sunos"$UNAME_RELEASE" + exit ;; + sun*:*:4.2BSD:*) + UNAME_RELEASE=`(sed 1q /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null` + test "x$UNAME_RELEASE" = x && UNAME_RELEASE=3 + case "`/bin/arch`" in + sun3) + echo m68k-sun-sunos"$UNAME_RELEASE" + ;; + sun4) + echo sparc-sun-sunos"$UNAME_RELEASE" + ;; + esac + exit ;; + aushp:SunOS:*:*) + echo sparc-auspex-sunos"$UNAME_RELEASE" + exit ;; + # The situation for MiNT is a little confusing. The machine name + # can be virtually everything (everything which is not + # "atarist" or "atariste" at least should have a processor + # > m68000). The system name ranges from "MiNT" over "FreeMiNT" + # to the lowercase version "mint" (or "freemint"). Finally + # the system name "TOS" denotes a system which is actually not + # MiNT. But MiNT is downward compatible to TOS, so this should + # be no problem. + atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*) + echo m68k-atari-mint"$UNAME_RELEASE" + exit ;; + atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*) + echo m68k-atari-mint"$UNAME_RELEASE" + exit ;; + *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*) + echo m68k-atari-mint"$UNAME_RELEASE" + exit ;; + milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*) + echo m68k-milan-mint"$UNAME_RELEASE" + exit ;; + hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*) + echo m68k-hades-mint"$UNAME_RELEASE" + exit ;; + *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*) + echo m68k-unknown-mint"$UNAME_RELEASE" + exit ;; + m68k:machten:*:*) + echo m68k-apple-machten"$UNAME_RELEASE" + exit ;; + powerpc:machten:*:*) + echo powerpc-apple-machten"$UNAME_RELEASE" + exit ;; + RISC*:Mach:*:*) + echo mips-dec-mach_bsd4.3 + exit ;; + RISC*:ULTRIX:*:*) + echo mips-dec-ultrix"$UNAME_RELEASE" + exit ;; + VAX*:ULTRIX*:*:*) + echo vax-dec-ultrix"$UNAME_RELEASE" + exit ;; + 2020:CLIX:*:* | 2430:CLIX:*:*) + echo clipper-intergraph-clix"$UNAME_RELEASE" + exit ;; + mips:*:*:UMIPS | mips:*:*:RISCos) + set_cc_for_build + sed 's/^ //' << EOF > "$dummy.c" +#ifdef __cplusplus +#include /* for printf() prototype */ + int main (int argc, char *argv[]) { +#else + int main (argc, argv) int argc; char *argv[]; { +#endif + #if defined (host_mips) && defined (MIPSEB) + #if defined (SYSTYPE_SYSV) + printf ("mips-mips-riscos%ssysv\\n", argv[1]); exit (0); + #endif + #if defined (SYSTYPE_SVR4) + printf ("mips-mips-riscos%ssvr4\\n", argv[1]); exit (0); + #endif + #if defined (SYSTYPE_BSD43) || defined(SYSTYPE_BSD) + printf ("mips-mips-riscos%sbsd\\n", argv[1]); exit (0); + #endif + #endif + exit (-1); + } +EOF + $CC_FOR_BUILD -o "$dummy" "$dummy.c" && + dummyarg=`echo "$UNAME_RELEASE" | sed -n 's/\([0-9]*\).*/\1/p'` && + SYSTEM_NAME=`"$dummy" "$dummyarg"` && + { echo "$SYSTEM_NAME"; exit; } + echo mips-mips-riscos"$UNAME_RELEASE" + exit ;; + Motorola:PowerMAX_OS:*:*) + echo powerpc-motorola-powermax + exit ;; + Motorola:*:4.3:PL8-*) + echo powerpc-harris-powermax + exit ;; + Night_Hawk:*:*:PowerMAX_OS | Synergy:PowerMAX_OS:*:*) + echo powerpc-harris-powermax + exit ;; + Night_Hawk:Power_UNIX:*:*) + echo powerpc-harris-powerunix + exit ;; + m88k:CX/UX:7*:*) + echo m88k-harris-cxux7 + exit ;; + m88k:*:4*:R4*) + echo m88k-motorola-sysv4 + exit ;; + m88k:*:3*:R3*) + echo m88k-motorola-sysv3 + exit ;; + AViiON:dgux:*:*) + # DG/UX returns AViiON for all architectures + UNAME_PROCESSOR=`/usr/bin/uname -p` + if [ "$UNAME_PROCESSOR" = mc88100 ] || [ "$UNAME_PROCESSOR" = mc88110 ] + then + if [ "$TARGET_BINARY_INTERFACE"x = m88kdguxelfx ] || \ + [ "$TARGET_BINARY_INTERFACE"x = x ] + then + echo m88k-dg-dgux"$UNAME_RELEASE" + else + echo m88k-dg-dguxbcs"$UNAME_RELEASE" + fi + else + echo i586-dg-dgux"$UNAME_RELEASE" + fi + exit ;; + M88*:DolphinOS:*:*) # DolphinOS (SVR3) + echo m88k-dolphin-sysv3 + exit ;; + M88*:*:R3*:*) + # Delta 88k system running SVR3 + echo m88k-motorola-sysv3 + exit ;; + XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3) + echo m88k-tektronix-sysv3 + exit ;; + Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD) + echo m68k-tektronix-bsd + exit ;; + *:IRIX*:*:*) + echo mips-sgi-irix"`echo "$UNAME_RELEASE"|sed -e 's/-/_/g'`" + exit ;; + ????????:AIX?:[12].1:2) # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX. + echo romp-ibm-aix # uname -m gives an 8 hex-code CPU id + exit ;; # Note that: echo "'`uname -s`'" gives 'AIX ' + i*86:AIX:*:*) + echo i386-ibm-aix + exit ;; + ia64:AIX:*:*) + if [ -x /usr/bin/oslevel ] ; then + IBM_REV=`/usr/bin/oslevel` + else + IBM_REV="$UNAME_VERSION.$UNAME_RELEASE" + fi + echo "$UNAME_MACHINE"-ibm-aix"$IBM_REV" + exit ;; + *:AIX:2:3) + if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then + set_cc_for_build + sed 's/^ //' << EOF > "$dummy.c" + #include + + main() + { + if (!__power_pc()) + exit(1); + puts("powerpc-ibm-aix3.2.5"); + exit(0); + } +EOF + if $CC_FOR_BUILD -o "$dummy" "$dummy.c" && SYSTEM_NAME=`"$dummy"` + then + echo "$SYSTEM_NAME" + else + echo rs6000-ibm-aix3.2.5 + fi + elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then + echo rs6000-ibm-aix3.2.4 + else + echo rs6000-ibm-aix3.2 + fi + exit ;; + *:AIX:*:[4567]) + IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'` + if /usr/sbin/lsattr -El "$IBM_CPU_ID" | grep ' POWER' >/dev/null 2>&1; then + IBM_ARCH=rs6000 + else + IBM_ARCH=powerpc + fi + if [ -x /usr/bin/lslpp ] ; then + IBM_REV=`/usr/bin/lslpp -Lqc bos.rte.libc | + awk -F: '{ print $3 }' | sed s/[0-9]*$/0/` + else + IBM_REV="$UNAME_VERSION.$UNAME_RELEASE" + fi + echo "$IBM_ARCH"-ibm-aix"$IBM_REV" + exit ;; + *:AIX:*:*) + echo rs6000-ibm-aix + exit ;; + ibmrt:4.4BSD:*|romp-ibm:4.4BSD:*) + echo romp-ibm-bsd4.4 + exit ;; + ibmrt:*BSD:*|romp-ibm:BSD:*) # covers RT/PC BSD and + echo romp-ibm-bsd"$UNAME_RELEASE" # 4.3 with uname added to + exit ;; # report: romp-ibm BSD 4.3 + *:BOSX:*:*) + echo rs6000-bull-bosx + exit ;; + DPX/2?00:B.O.S.:*:*) + echo m68k-bull-sysv3 + exit ;; + 9000/[34]??:4.3bsd:1.*:*) + echo m68k-hp-bsd + exit ;; + hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*) + echo m68k-hp-bsd4.4 + exit ;; + 9000/[34678]??:HP-UX:*:*) + HPUX_REV=`echo "$UNAME_RELEASE"|sed -e 's/[^.]*.[0B]*//'` + case "$UNAME_MACHINE" in + 9000/31?) HP_ARCH=m68000 ;; + 9000/[34]??) HP_ARCH=m68k ;; + 9000/[678][0-9][0-9]) + if [ -x /usr/bin/getconf ]; then + sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null` + sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null` + case "$sc_cpu_version" in + 523) HP_ARCH=hppa1.0 ;; # CPU_PA_RISC1_0 + 528) HP_ARCH=hppa1.1 ;; # CPU_PA_RISC1_1 + 532) # CPU_PA_RISC2_0 + case "$sc_kernel_bits" in + 32) HP_ARCH=hppa2.0n ;; + 64) HP_ARCH=hppa2.0w ;; + '') HP_ARCH=hppa2.0 ;; # HP-UX 10.20 + esac ;; + esac + fi + if [ "$HP_ARCH" = "" ]; then + set_cc_for_build + sed 's/^ //' << EOF > "$dummy.c" + + #define _HPUX_SOURCE + #include + #include + + int main () + { + #if defined(_SC_KERNEL_BITS) + long bits = sysconf(_SC_KERNEL_BITS); + #endif + long cpu = sysconf (_SC_CPU_VERSION); + + switch (cpu) + { + case CPU_PA_RISC1_0: puts ("hppa1.0"); break; + case CPU_PA_RISC1_1: puts ("hppa1.1"); break; + case CPU_PA_RISC2_0: + #if defined(_SC_KERNEL_BITS) + switch (bits) + { + case 64: puts ("hppa2.0w"); break; + case 32: puts ("hppa2.0n"); break; + default: puts ("hppa2.0"); break; + } break; + #else /* !defined(_SC_KERNEL_BITS) */ + puts ("hppa2.0"); break; + #endif + default: puts ("hppa1.0"); break; + } + exit (0); + } +EOF + (CCOPTS="" $CC_FOR_BUILD -o "$dummy" "$dummy.c" 2>/dev/null) && HP_ARCH=`"$dummy"` + test -z "$HP_ARCH" && HP_ARCH=hppa + fi ;; + esac + if [ "$HP_ARCH" = hppa2.0w ] + then + set_cc_for_build + + # hppa2.0w-hp-hpux* has a 64-bit kernel and a compiler generating + # 32-bit code. hppa64-hp-hpux* has the same kernel and a compiler + # generating 64-bit code. GNU and HP use different nomenclature: + # + # $ CC_FOR_BUILD=cc ./config.guess + # => hppa2.0w-hp-hpux11.23 + # $ CC_FOR_BUILD="cc +DA2.0w" ./config.guess + # => hppa64-hp-hpux11.23 + + if echo __LP64__ | (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | + grep -q __LP64__ + then + HP_ARCH=hppa2.0w + else + HP_ARCH=hppa64 + fi + fi + echo "$HP_ARCH"-hp-hpux"$HPUX_REV" + exit ;; + ia64:HP-UX:*:*) + HPUX_REV=`echo "$UNAME_RELEASE"|sed -e 's/[^.]*.[0B]*//'` + echo ia64-hp-hpux"$HPUX_REV" + exit ;; + 3050*:HI-UX:*:*) + set_cc_for_build + sed 's/^ //' << EOF > "$dummy.c" + #include + int + main () + { + long cpu = sysconf (_SC_CPU_VERSION); + /* The order matters, because CPU_IS_HP_MC68K erroneously returns + true for CPU_PA_RISC1_0. CPU_IS_PA_RISC returns correct + results, however. */ + if (CPU_IS_PA_RISC (cpu)) + { + switch (cpu) + { + case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break; + case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break; + case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break; + default: puts ("hppa-hitachi-hiuxwe2"); break; + } + } + else if (CPU_IS_HP_MC68K (cpu)) + puts ("m68k-hitachi-hiuxwe2"); + else puts ("unknown-hitachi-hiuxwe2"); + exit (0); + } +EOF + $CC_FOR_BUILD -o "$dummy" "$dummy.c" && SYSTEM_NAME=`"$dummy"` && + { echo "$SYSTEM_NAME"; exit; } + echo unknown-hitachi-hiuxwe2 + exit ;; + 9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:*) + echo hppa1.1-hp-bsd + exit ;; + 9000/8??:4.3bsd:*:*) + echo hppa1.0-hp-bsd + exit ;; + *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*) + echo hppa1.0-hp-mpeix + exit ;; + hp7??:OSF1:*:* | hp8?[79]:OSF1:*:*) + echo hppa1.1-hp-osf + exit ;; + hp8??:OSF1:*:*) + echo hppa1.0-hp-osf + exit ;; + i*86:OSF1:*:*) + if [ -x /usr/sbin/sysversion ] ; then + echo "$UNAME_MACHINE"-unknown-osf1mk + else + echo "$UNAME_MACHINE"-unknown-osf1 + fi + exit ;; + parisc*:Lites*:*:*) + echo hppa1.1-hp-lites + exit ;; + C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*) + echo c1-convex-bsd + exit ;; + C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*) + if getsysinfo -f scalar_acc + then echo c32-convex-bsd + else echo c2-convex-bsd + fi + exit ;; + C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*) + echo c34-convex-bsd + exit ;; + C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*) + echo c38-convex-bsd + exit ;; + C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*) + echo c4-convex-bsd + exit ;; + CRAY*Y-MP:*:*:*) + echo ymp-cray-unicos"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/' + exit ;; + CRAY*[A-Z]90:*:*:*) + echo "$UNAME_MACHINE"-cray-unicos"$UNAME_RELEASE" \ + | sed -e 's/CRAY.*\([A-Z]90\)/\1/' \ + -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \ + -e 's/\.[^.]*$/.X/' + exit ;; + CRAY*TS:*:*:*) + echo t90-cray-unicos"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/' + exit ;; + CRAY*T3E:*:*:*) + echo alphaev5-cray-unicosmk"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/' + exit ;; + CRAY*SV1:*:*:*) + echo sv1-cray-unicos"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/' + exit ;; + *:UNICOS/mp:*:*) + echo craynv-cray-unicosmp"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/' + exit ;; + F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*) + FUJITSU_PROC=`uname -m | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz` + FUJITSU_SYS=`uname -p | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/\///'` + FUJITSU_REL=`echo "$UNAME_RELEASE" | sed -e 's/ /_/'` + echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" + exit ;; + 5000:UNIX_System_V:4.*:*) + FUJITSU_SYS=`uname -p | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/\///'` + FUJITSU_REL=`echo "$UNAME_RELEASE" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/ /_/'` + echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" + exit ;; + i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*) + echo "$UNAME_MACHINE"-pc-bsdi"$UNAME_RELEASE" + exit ;; + sparc*:BSD/OS:*:*) + echo sparc-unknown-bsdi"$UNAME_RELEASE" + exit ;; + *:BSD/OS:*:*) + echo "$UNAME_MACHINE"-unknown-bsdi"$UNAME_RELEASE" + exit ;; + arm:FreeBSD:*:*) + UNAME_PROCESSOR=`uname -p` + set_cc_for_build + if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \ + | grep -q __ARM_PCS_VFP + then + echo "${UNAME_PROCESSOR}"-unknown-freebsd"`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`"-gnueabi + else + echo "${UNAME_PROCESSOR}"-unknown-freebsd"`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`"-gnueabihf + fi + exit ;; + *:FreeBSD:*:*) + UNAME_PROCESSOR=`/usr/bin/uname -p` + case "$UNAME_PROCESSOR" in + amd64) + UNAME_PROCESSOR=x86_64 ;; + i386) + UNAME_PROCESSOR=i586 ;; + esac + echo "$UNAME_PROCESSOR"-unknown-freebsd"`echo "$UNAME_RELEASE"|sed -e 's/[-(].*//'`" + exit ;; + i*:CYGWIN*:*) + echo "$UNAME_MACHINE"-pc-cygwin + exit ;; + *:MINGW64*:*) + echo "$UNAME_MACHINE"-pc-mingw64 + exit ;; + *:MINGW*:*) + echo "$UNAME_MACHINE"-pc-mingw32 + exit ;; + *:MSYS*:*) + echo "$UNAME_MACHINE"-pc-msys + exit ;; + i*:PW*:*) + echo "$UNAME_MACHINE"-pc-pw32 + exit ;; + *:Interix*:*) + case "$UNAME_MACHINE" in + x86) + echo i586-pc-interix"$UNAME_RELEASE" + exit ;; + authenticamd | genuineintel | EM64T) + echo x86_64-unknown-interix"$UNAME_RELEASE" + exit ;; + IA64) + echo ia64-unknown-interix"$UNAME_RELEASE" + exit ;; + esac ;; + i*:UWIN*:*) + echo "$UNAME_MACHINE"-pc-uwin + exit ;; + amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*) + echo x86_64-unknown-cygwin + exit ;; + prep*:SunOS:5.*:*) + echo powerpcle-unknown-solaris2"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`" + exit ;; + *:GNU:*:*) + # the GNU system + echo "`echo "$UNAME_MACHINE"|sed -e 's,[-/].*$,,'`-unknown-$LIBC`echo "$UNAME_RELEASE"|sed -e 's,/.*$,,'`" + exit ;; + *:GNU/*:*:*) + # other systems with GNU libc and userland + echo "$UNAME_MACHINE-unknown-`echo "$UNAME_SYSTEM" | sed 's,^[^/]*/,,' | tr "[:upper:]" "[:lower:]"``echo "$UNAME_RELEASE"|sed -e 's/[-(].*//'`-$LIBC" + exit ;; + *:Minix:*:*) + echo "$UNAME_MACHINE"-unknown-minix + exit ;; + aarch64:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + aarch64_be:Linux:*:*) + UNAME_MACHINE=aarch64_be + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + alpha:Linux:*:*) + case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in + EV5) UNAME_MACHINE=alphaev5 ;; + EV56) UNAME_MACHINE=alphaev56 ;; + PCA56) UNAME_MACHINE=alphapca56 ;; + PCA57) UNAME_MACHINE=alphapca56 ;; + EV6) UNAME_MACHINE=alphaev6 ;; + EV67) UNAME_MACHINE=alphaev67 ;; + EV68*) UNAME_MACHINE=alphaev68 ;; + esac + objdump --private-headers /bin/sh | grep -q ld.so.1 + if test "$?" = 0 ; then LIBC=gnulibc1 ; fi + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + arc:Linux:*:* | arceb:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + arm*:Linux:*:*) + set_cc_for_build + if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \ + | grep -q __ARM_EABI__ + then + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + else + if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \ + | grep -q __ARM_PCS_VFP + then + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"eabi + else + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"eabihf + fi + fi + exit ;; + avr32*:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + cris:Linux:*:*) + echo "$UNAME_MACHINE"-axis-linux-"$LIBC" + exit ;; + crisv32:Linux:*:*) + echo "$UNAME_MACHINE"-axis-linux-"$LIBC" + exit ;; + e2k:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + frv:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + hexagon:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + i*86:Linux:*:*) + echo "$UNAME_MACHINE"-pc-linux-"$LIBC" + exit ;; + ia64:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + k1om:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + m32r*:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + m68*:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + mips:Linux:*:* | mips64:Linux:*:*) + set_cc_for_build + sed 's/^ //' << EOF > "$dummy.c" + #undef CPU + #undef ${UNAME_MACHINE} + #undef ${UNAME_MACHINE}el + #if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL) + CPU=${UNAME_MACHINE}el + #else + #if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB) + CPU=${UNAME_MACHINE} + #else + CPU= + #endif + #endif +EOF + eval "`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^CPU'`" + test "x$CPU" != x && { echo "$CPU-unknown-linux-$LIBC"; exit; } + ;; + mips64el:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + openrisc*:Linux:*:*) + echo or1k-unknown-linux-"$LIBC" + exit ;; + or32:Linux:*:* | or1k*:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + padre:Linux:*:*) + echo sparc-unknown-linux-"$LIBC" + exit ;; + parisc64:Linux:*:* | hppa64:Linux:*:*) + echo hppa64-unknown-linux-"$LIBC" + exit ;; + parisc:Linux:*:* | hppa:Linux:*:*) + # Look for CPU level + case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in + PA7*) echo hppa1.1-unknown-linux-"$LIBC" ;; + PA8*) echo hppa2.0-unknown-linux-"$LIBC" ;; + *) echo hppa-unknown-linux-"$LIBC" ;; + esac + exit ;; + ppc64:Linux:*:*) + echo powerpc64-unknown-linux-"$LIBC" + exit ;; + ppc:Linux:*:*) + echo powerpc-unknown-linux-"$LIBC" + exit ;; + ppc64le:Linux:*:*) + echo powerpc64le-unknown-linux-"$LIBC" + exit ;; + ppcle:Linux:*:*) + echo powerpcle-unknown-linux-"$LIBC" + exit ;; + riscv32:Linux:*:* | riscv64:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + s390:Linux:*:* | s390x:Linux:*:*) + echo "$UNAME_MACHINE"-ibm-linux-"$LIBC" + exit ;; + sh64*:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + sh*:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + sparc:Linux:*:* | sparc64:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + tile*:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + vax:Linux:*:*) + echo "$UNAME_MACHINE"-dec-linux-"$LIBC" + exit ;; + x86_64:Linux:*:*) + echo "$UNAME_MACHINE"-pc-linux-"$LIBC" + exit ;; + xtensa*:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + i*86:DYNIX/ptx:4*:*) + # ptx 4.0 does uname -s correctly, with DYNIX/ptx in there. + # earlier versions are messed up and put the nodename in both + # sysname and nodename. + echo i386-sequent-sysv4 + exit ;; + i*86:UNIX_SV:4.2MP:2.*) + # Unixware is an offshoot of SVR4, but it has its own version + # number series starting with 2... + # I am not positive that other SVR4 systems won't match this, + # I just have to hope. -- rms. + # Use sysv4.2uw... so that sysv4* matches it. + echo "$UNAME_MACHINE"-pc-sysv4.2uw"$UNAME_VERSION" + exit ;; + i*86:OS/2:*:*) + # If we were able to find `uname', then EMX Unix compatibility + # is probably installed. + echo "$UNAME_MACHINE"-pc-os2-emx + exit ;; + i*86:XTS-300:*:STOP) + echo "$UNAME_MACHINE"-unknown-stop + exit ;; + i*86:atheos:*:*) + echo "$UNAME_MACHINE"-unknown-atheos + exit ;; + i*86:syllable:*:*) + echo "$UNAME_MACHINE"-pc-syllable + exit ;; + i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.[02]*:*) + echo i386-unknown-lynxos"$UNAME_RELEASE" + exit ;; + i*86:*DOS:*:*) + echo "$UNAME_MACHINE"-pc-msdosdjgpp + exit ;; + i*86:*:4.*:*) + UNAME_REL=`echo "$UNAME_RELEASE" | sed 's/\/MP$//'` + if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then + echo "$UNAME_MACHINE"-univel-sysv"$UNAME_REL" + else + echo "$UNAME_MACHINE"-pc-sysv"$UNAME_REL" + fi + exit ;; + i*86:*:5:[678]*) + # UnixWare 7.x, OpenUNIX and OpenServer 6. + case `/bin/uname -X | grep "^Machine"` in + *486*) UNAME_MACHINE=i486 ;; + *Pentium) UNAME_MACHINE=i586 ;; + *Pent*|*Celeron) UNAME_MACHINE=i686 ;; + esac + echo "$UNAME_MACHINE-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}{$UNAME_VERSION}" + exit ;; + i*86:*:3.2:*) + if test -f /usr/options/cb.name; then + UNAME_REL=`sed -n 's/.*Version //p' /dev/null >/dev/null ; then + UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')` + (/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486 + (/bin/uname -X|grep '^Machine.*Pentium' >/dev/null) \ + && UNAME_MACHINE=i586 + (/bin/uname -X|grep '^Machine.*Pent *II' >/dev/null) \ + && UNAME_MACHINE=i686 + (/bin/uname -X|grep '^Machine.*Pentium Pro' >/dev/null) \ + && UNAME_MACHINE=i686 + echo "$UNAME_MACHINE"-pc-sco"$UNAME_REL" + else + echo "$UNAME_MACHINE"-pc-sysv32 + fi + exit ;; + pc:*:*:*) + # Left here for compatibility: + # uname -m prints for DJGPP always 'pc', but it prints nothing about + # the processor, so we play safe by assuming i586. + # Note: whatever this is, it MUST be the same as what config.sub + # prints for the "djgpp" host, or else GDB configure will decide that + # this is a cross-build. + echo i586-pc-msdosdjgpp + exit ;; + Intel:Mach:3*:*) + echo i386-pc-mach3 + exit ;; + paragon:*:*:*) + echo i860-intel-osf1 + exit ;; + i860:*:4.*:*) # i860-SVR4 + if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then + echo i860-stardent-sysv"$UNAME_RELEASE" # Stardent Vistra i860-SVR4 + else # Add other i860-SVR4 vendors below as they are discovered. + echo i860-unknown-sysv"$UNAME_RELEASE" # Unknown i860-SVR4 + fi + exit ;; + mini*:CTIX:SYS*5:*) + # "miniframe" + echo m68010-convergent-sysv + exit ;; + mc68k:UNIX:SYSTEM5:3.51m) + echo m68k-convergent-sysv + exit ;; + M680?0:D-NIX:5.3:*) + echo m68k-diab-dnix + exit ;; + M68*:*:R3V[5678]*:*) + test -r /sysV68 && { echo 'm68k-motorola-sysv'; exit; } ;; + 3[345]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 3[34]??/*:*:4.0:3.0 | 4400:*:4.0:3.0 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0 | SDS2:*:4.0:3.0 | SHG2:*:4.0:3.0 | S7501*:*:4.0:3.0) + OS_REL='' + test -r /etc/.relid \ + && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid` + /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ + && { echo i486-ncr-sysv4.3"$OS_REL"; exit; } + /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \ + && { echo i586-ncr-sysv4.3"$OS_REL"; exit; } ;; + 3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*) + /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ + && { echo i486-ncr-sysv4; exit; } ;; + NCR*:*:4.2:* | MPRAS*:*:4.2:*) + OS_REL='.3' + test -r /etc/.relid \ + && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid` + /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ + && { echo i486-ncr-sysv4.3"$OS_REL"; exit; } + /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \ + && { echo i586-ncr-sysv4.3"$OS_REL"; exit; } + /bin/uname -p 2>/dev/null | /bin/grep pteron >/dev/null \ + && { echo i586-ncr-sysv4.3"$OS_REL"; exit; } ;; + m68*:LynxOS:2.*:* | m68*:LynxOS:3.0*:*) + echo m68k-unknown-lynxos"$UNAME_RELEASE" + exit ;; + mc68030:UNIX_System_V:4.*:*) + echo m68k-atari-sysv4 + exit ;; + TSUNAMI:LynxOS:2.*:*) + echo sparc-unknown-lynxos"$UNAME_RELEASE" + exit ;; + rs6000:LynxOS:2.*:*) + echo rs6000-unknown-lynxos"$UNAME_RELEASE" + exit ;; + PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.[02]*:*) + echo powerpc-unknown-lynxos"$UNAME_RELEASE" + exit ;; + SM[BE]S:UNIX_SV:*:*) + echo mips-dde-sysv"$UNAME_RELEASE" + exit ;; + RM*:ReliantUNIX-*:*:*) + echo mips-sni-sysv4 + exit ;; + RM*:SINIX-*:*:*) + echo mips-sni-sysv4 + exit ;; + *:SINIX-*:*:*) + if uname -p 2>/dev/null >/dev/null ; then + UNAME_MACHINE=`(uname -p) 2>/dev/null` + echo "$UNAME_MACHINE"-sni-sysv4 + else + echo ns32k-sni-sysv + fi + exit ;; + PENTIUM:*:4.0*:*) # Unisys `ClearPath HMP IX 4000' SVR4/MP effort + # says + echo i586-unisys-sysv4 + exit ;; + *:UNIX_System_V:4*:FTX*) + # From Gerald Hewes . + # How about differentiating between stratus architectures? -djm + echo hppa1.1-stratus-sysv4 + exit ;; + *:*:*:FTX*) + # From seanf@swdc.stratus.com. + echo i860-stratus-sysv4 + exit ;; + i*86:VOS:*:*) + # From Paul.Green@stratus.com. + echo "$UNAME_MACHINE"-stratus-vos + exit ;; + *:VOS:*:*) + # From Paul.Green@stratus.com. + echo hppa1.1-stratus-vos + exit ;; + mc68*:A/UX:*:*) + echo m68k-apple-aux"$UNAME_RELEASE" + exit ;; + news*:NEWS-OS:6*:*) + echo mips-sony-newsos6 + exit ;; + R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*) + if [ -d /usr/nec ]; then + echo mips-nec-sysv"$UNAME_RELEASE" + else + echo mips-unknown-sysv"$UNAME_RELEASE" + fi + exit ;; + BeBox:BeOS:*:*) # BeOS running on hardware made by Be, PPC only. + echo powerpc-be-beos + exit ;; + BeMac:BeOS:*:*) # BeOS running on Mac or Mac clone, PPC only. + echo powerpc-apple-beos + exit ;; + BePC:BeOS:*:*) # BeOS running on Intel PC compatible. + echo i586-pc-beos + exit ;; + BePC:Haiku:*:*) # Haiku running on Intel PC compatible. + echo i586-pc-haiku + exit ;; + x86_64:Haiku:*:*) + echo x86_64-unknown-haiku + exit ;; + SX-4:SUPER-UX:*:*) + echo sx4-nec-superux"$UNAME_RELEASE" + exit ;; + SX-5:SUPER-UX:*:*) + echo sx5-nec-superux"$UNAME_RELEASE" + exit ;; + SX-6:SUPER-UX:*:*) + echo sx6-nec-superux"$UNAME_RELEASE" + exit ;; + SX-7:SUPER-UX:*:*) + echo sx7-nec-superux"$UNAME_RELEASE" + exit ;; + SX-8:SUPER-UX:*:*) + echo sx8-nec-superux"$UNAME_RELEASE" + exit ;; + SX-8R:SUPER-UX:*:*) + echo sx8r-nec-superux"$UNAME_RELEASE" + exit ;; + SX-ACE:SUPER-UX:*:*) + echo sxace-nec-superux"$UNAME_RELEASE" + exit ;; + Power*:Rhapsody:*:*) + echo powerpc-apple-rhapsody"$UNAME_RELEASE" + exit ;; + *:Rhapsody:*:*) + echo "$UNAME_MACHINE"-apple-rhapsody"$UNAME_RELEASE" + exit ;; + *:Darwin:*:*) + UNAME_PROCESSOR=`uname -p` || UNAME_PROCESSOR=unknown + set_cc_for_build + if test "$UNAME_PROCESSOR" = unknown ; then + UNAME_PROCESSOR=powerpc + fi + if test "`echo "$UNAME_RELEASE" | sed -e 's/\..*//'`" -le 10 ; then + if [ "$CC_FOR_BUILD" != no_compiler_found ]; then + if (echo '#ifdef __LP64__'; echo IS_64BIT_ARCH; echo '#endif') | \ + (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \ + grep IS_64BIT_ARCH >/dev/null + then + case $UNAME_PROCESSOR in + i386) UNAME_PROCESSOR=x86_64 ;; + powerpc) UNAME_PROCESSOR=powerpc64 ;; + esac + fi + # On 10.4-10.6 one might compile for PowerPC via gcc -arch ppc + if (echo '#ifdef __POWERPC__'; echo IS_PPC; echo '#endif') | \ + (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \ + grep IS_PPC >/dev/null + then + UNAME_PROCESSOR=powerpc + fi + fi + elif test "$UNAME_PROCESSOR" = i386 ; then + # Avoid executing cc on OS X 10.9, as it ships with a stub + # that puts up a graphical alert prompting to install + # developer tools. Any system running Mac OS X 10.7 or + # later (Darwin 11 and later) is required to have a 64-bit + # processor. This is not true of the ARM version of Darwin + # that Apple uses in portable devices. + UNAME_PROCESSOR=x86_64 + fi + echo "$UNAME_PROCESSOR"-apple-darwin"$UNAME_RELEASE" + exit ;; + *:procnto*:*:* | *:QNX:[0123456789]*:*) + UNAME_PROCESSOR=`uname -p` + if test "$UNAME_PROCESSOR" = x86; then + UNAME_PROCESSOR=i386 + UNAME_MACHINE=pc + fi + echo "$UNAME_PROCESSOR"-"$UNAME_MACHINE"-nto-qnx"$UNAME_RELEASE" + exit ;; + *:QNX:*:4*) + echo i386-pc-qnx + exit ;; + NEO-*:NONSTOP_KERNEL:*:*) + echo neo-tandem-nsk"$UNAME_RELEASE" + exit ;; + NSE-*:NONSTOP_KERNEL:*:*) + echo nse-tandem-nsk"$UNAME_RELEASE" + exit ;; + NSR-*:NONSTOP_KERNEL:*:*) + echo nsr-tandem-nsk"$UNAME_RELEASE" + exit ;; + NSV-*:NONSTOP_KERNEL:*:*) + echo nsv-tandem-nsk"$UNAME_RELEASE" + exit ;; + NSX-*:NONSTOP_KERNEL:*:*) + echo nsx-tandem-nsk"$UNAME_RELEASE" + exit ;; + *:NonStop-UX:*:*) + echo mips-compaq-nonstopux + exit ;; + BS2000:POSIX*:*:*) + echo bs2000-siemens-sysv + exit ;; + DS/*:UNIX_System_V:*:*) + echo "$UNAME_MACHINE"-"$UNAME_SYSTEM"-"$UNAME_RELEASE" + exit ;; + *:Plan9:*:*) + # "uname -m" is not consistent, so use $cputype instead. 386 + # is converted to i386 for consistency with other x86 + # operating systems. + # shellcheck disable=SC2154 + if test "$cputype" = 386; then + UNAME_MACHINE=i386 + else + UNAME_MACHINE="$cputype" + fi + echo "$UNAME_MACHINE"-unknown-plan9 + exit ;; + *:TOPS-10:*:*) + echo pdp10-unknown-tops10 + exit ;; + *:TENEX:*:*) + echo pdp10-unknown-tenex + exit ;; + KS10:TOPS-20:*:* | KL10:TOPS-20:*:* | TYPE4:TOPS-20:*:*) + echo pdp10-dec-tops20 + exit ;; + XKL-1:TOPS-20:*:* | TYPE5:TOPS-20:*:*) + echo pdp10-xkl-tops20 + exit ;; + *:TOPS-20:*:*) + echo pdp10-unknown-tops20 + exit ;; + *:ITS:*:*) + echo pdp10-unknown-its + exit ;; + SEI:*:*:SEIUX) + echo mips-sei-seiux"$UNAME_RELEASE" + exit ;; + *:DragonFly:*:*) + echo "$UNAME_MACHINE"-unknown-dragonfly"`echo "$UNAME_RELEASE"|sed -e 's/[-(].*//'`" + exit ;; + *:*VMS:*:*) + UNAME_MACHINE=`(uname -p) 2>/dev/null` + case "$UNAME_MACHINE" in + A*) echo alpha-dec-vms ; exit ;; + I*) echo ia64-dec-vms ; exit ;; + V*) echo vax-dec-vms ; exit ;; + esac ;; + *:XENIX:*:SysV) + echo i386-pc-xenix + exit ;; + i*86:skyos:*:*) + echo "$UNAME_MACHINE"-pc-skyos"`echo "$UNAME_RELEASE" | sed -e 's/ .*$//'`" + exit ;; + i*86:rdos:*:*) + echo "$UNAME_MACHINE"-pc-rdos + exit ;; + i*86:AROS:*:*) + echo "$UNAME_MACHINE"-pc-aros + exit ;; + x86_64:VMkernel:*:*) + echo "$UNAME_MACHINE"-unknown-esx + exit ;; + amd64:Isilon\ OneFS:*:*) + echo x86_64-unknown-onefs + exit ;; +esac + +echo "$0: unable to guess system type" >&2 + +case "$UNAME_MACHINE:$UNAME_SYSTEM" in + mips:Linux | mips64:Linux) + # If we got here on MIPS GNU/Linux, output extra information. + cat >&2 <&2 </dev/null || echo unknown` +uname -r = `(uname -r) 2>/dev/null || echo unknown` +uname -s = `(uname -s) 2>/dev/null || echo unknown` +uname -v = `(uname -v) 2>/dev/null || echo unknown` + +/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null` +/bin/uname -X = `(/bin/uname -X) 2>/dev/null` + +hostinfo = `(hostinfo) 2>/dev/null` +/bin/universe = `(/bin/universe) 2>/dev/null` +/usr/bin/arch -k = `(/usr/bin/arch -k) 2>/dev/null` +/bin/arch = `(/bin/arch) 2>/dev/null` +/usr/bin/oslevel = `(/usr/bin/oslevel) 2>/dev/null` +/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null` + +UNAME_MACHINE = "$UNAME_MACHINE" +UNAME_RELEASE = "$UNAME_RELEASE" +UNAME_SYSTEM = "$UNAME_SYSTEM" +UNAME_VERSION = "$UNAME_VERSION" +EOF + +exit 1 + +# Local variables: +# eval: (add-hook 'before-save-hook 'time-stamp) +# time-stamp-start: "timestamp='" +# time-stamp-format: "%:y-%02m-%02d" +# time-stamp-end: "'" +# End: diff --git a/config.h.in b/config.h.in new file mode 100644 index 0000000..7a54176 --- /dev/null +++ b/config.h.in @@ -0,0 +1,300 @@ +/* config.h.in. Generated from configure.ac by autoheader. */ + +/* Define if building universal (internal helper macro) */ +#undef AC_APPLE_UNIVERSAL_BUILD + +/* Enable special libFuzzer binary */ +#undef ENABLE_LIBFUZZER + +/* Define to 1 if you have the `accept4' function. */ +#undef HAVE_ACCEPT4 + +/* Define to 1 if you have the header file. */ +#undef HAVE_ALLOCA_H + +/* __auto_type is available */ +#undef HAVE_AUTO_TYPE + +/* Define to 1 if you have the header file. */ +#undef HAVE_BYTESWAP_H + +/* caml_alloc_initialized_string found at compile time. */ +#undef HAVE_CAML_ALLOC_INITIALIZED_STRING + +/* com_err found at compile time. */ +#undef HAVE_COM_ERR + +/* curl found at compile time. */ +#undef HAVE_CURL + +/* CURLOPT_UNIX_SOCKET_PATH found at compile time. */ +#undef HAVE_CURLOPT_UNIX_SOCKET_PATH + +/* Define to 1 if you have the declaration of `program_invocation_short_name', + and to 0 if you don't. */ +#undef HAVE_DECL_PROGRAM_INVOCATION_SHORT_NAME + +/* Define to 1 if you have the `dladdr' function. */ +#undef HAVE_DLADDR + +/* Define to 1 if you have the header file. */ +#undef HAVE_DLFCN_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_ENDIAN_H + +/* environ is declared in headers */ +#undef HAVE_ENVIRON_DECL + +/* ext2fs found at compile time. */ +#undef HAVE_EXT2FS + +/* Define to 1 if you have the `fdatasync' function. */ +#undef HAVE_FDATASYNC + +/* Define to 1 if you have the `flockfile' function. */ +#undef HAVE_FLOCKFILE + +/* Define to 1 if you have the `funlockfile' function. */ +#undef HAVE_FUNLOCKFILE + +/* Define to 1 if you have the `get_current_dir_name' function. */ +#undef HAVE_GET_CURRENT_DIR_NAME + +/* gnutls found at compile time. */ +#undef HAVE_GNUTLS + +/* Define to 1 if you have the `gnutls_base64_decode2' function. */ +#undef HAVE_GNUTLS_BASE64_DECODE2 + +/* Define to 1 if you have the `gnutls_certificate_set_known_dh_params' + function. */ +#undef HAVE_GNUTLS_CERTIFICATE_SET_KNOWN_DH_PARAMS + +/* Define to 1 if you have the `gnutls_session_set_verify_cert' function. */ +#undef HAVE_GNUTLS_SESSION_SET_VERIFY_CERT + +/* Define to 1 if you have the header file. */ +#undef HAVE_INTTYPES_H + +/* libguestfs found at compile time. */ +#undef HAVE_LIBGUESTFS + +/* liblzma found at compile time. */ +#undef HAVE_LIBLZMA + +/* libnbd found at compile time. */ +#undef HAVE_LIBNBD + +/* libselinux found at compile time. */ +#undef HAVE_LIBSELINUX + +/* libvirt found at compile time. */ +#undef HAVE_LIBVIRT + +/* libzstd found at compile time. */ +#undef HAVE_LIBZSTD + +/* Define to 1 if you have the header file. */ +#undef HAVE_LINUX_VM_SOCKETS_H + +/* Define to 1 if you have the `lua_isinteger' function. */ +#undef HAVE_LUA_ISINTEGER + +/* Define to 1 if you have the header file. */ +#undef HAVE_MEMORY_H + +/* Define to 1 if you have the `mkostemp' function. */ +#undef HAVE_MKOSTEMP + +/* Define to 1 if you have the `mlock' function. */ +#undef HAVE_MLOCK + +/* Define to 1 if you have the `mlockall' function. */ +#undef HAVE_MLOCKALL + +/* Define to 1 if you have the `munlock' function. */ +#undef HAVE_MUNLOCK + +/* Define to 1 if you have the `open_memstream' function. */ +#undef HAVE_OPEN_MEMSTREAM + +/* Define to 1 if you have the `pipe2' function. */ +#undef HAVE_PIPE2 + +/* Define to 1 if you have the `posix_fadvise' function. */ +#undef HAVE_POSIX_FADVISE + +/* Define to 1 if you have the `ppoll' function. */ +#undef HAVE_PPOLL + +/* Define if you have POSIX threads libraries and header files. */ +#undef HAVE_PTHREAD + +/* Have PTHREAD_PRIO_INHERIT. */ +#undef HAVE_PTHREAD_PRIO_INHERIT + +/* Python library found at compile time */ +#undef HAVE_PYTHON + +/* Define to 1 if you have the header file. */ +#undef HAVE_STDATOMIC_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_STDINT_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_STDLIB_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_STRINGS_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_STRING_H + +/* Define to 1 if `cache_readahead' is a member of `struct struct_io_manager'. + */ +#undef HAVE_STRUCT_STRUCT_IO_MANAGER_CACHE_READAHEAD + +/* Define to 1 if `zeroout' is a member of `struct struct_io_manager'. */ +#undef HAVE_STRUCT_STRUCT_IO_MANAGER_ZEROOUT + +/* Define to 1 if you have the header file. */ +#undef HAVE_SYS_ENDIAN_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_SYS_MMAN_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_SYS_PRCTL_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_SYS_PROCCTL_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_SYS_STAT_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_SYS_TYPES_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_UNISTD_H + +/* Valgrind headers found at compile time */ +#undef HAVE_VALGRIND + +/* Define to 1 if vfprintf supports %m. */ +#undef HAVE_VFPRINTF_PERCENT_M + +/* zlib found at compile time. */ +#undef HAVE_ZLIB + +/* Program used by iso plugin to make ISOs. */ +#undef ISOPROG + +/* Temporary directory for large files */ +#undef LARGE_TMPDIR + +/* Define to the sub-directory where libtool stores uninstalled libraries. */ +#undef LT_OBJDIR + +/* Name of package */ +#undef PACKAGE + +/* Define to the address where bug reports for this package should be sent. */ +#undef PACKAGE_BUGREPORT + +/* Define to the full name of this package. */ +#undef PACKAGE_NAME + +/* Define to the full name and version of this package. */ +#undef PACKAGE_STRING + +/* Define to the one symbol short name of this package. */ +#undef PACKAGE_TARNAME + +/* Define to the home page for this package. */ +#undef PACKAGE_URL + +/* Define to the version of this package. */ +#undef PACKAGE_VERSION + +/* Define to 1 if the C compiler supports function prototypes. */ +#undef PROTOTYPES + +/* Define to necessary symbol if this constant uses a non-standard name on + your system. */ +#undef PTHREAD_CREATE_JOINABLE + +/* Define to 1 if you have the ANSI C header files. */ +#undef STDC_HEADERS + +/* Default TLS session priority string */ +#undef TLS_PRIORITY + +/* Enable extensions on AIX 3, Interix. */ +#ifndef _ALL_SOURCE +# undef _ALL_SOURCE +#endif +/* Enable GNU extensions on systems that have them. */ +#ifndef _GNU_SOURCE +# undef _GNU_SOURCE +#endif +/* Enable threading extensions on Solaris. */ +#ifndef _POSIX_PTHREAD_SEMANTICS +# undef _POSIX_PTHREAD_SEMANTICS +#endif +/* Enable extensions on HP NonStop. */ +#ifndef _TANDEM_SOURCE +# undef _TANDEM_SOURCE +#endif +/* Enable general extensions on Solaris. */ +#ifndef __EXTENSIONS__ +# undef __EXTENSIONS__ +#endif + + +/* Version number of package */ +#undef VERSION + +/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most + significant byte first (like Motorola and SPARC, unlike Intel). */ +#if defined AC_APPLE_UNIVERSAL_BUILD +# if defined __BIG_ENDIAN__ +# define WORDS_BIGENDIAN 1 +# endif +#else +# ifndef WORDS_BIGENDIAN +# undef WORDS_BIGENDIAN +# endif +#endif + +/* Enable large inode numbers on Mac OS X 10.5. */ +#ifndef _DARWIN_USE_64_BIT_INODE +# define _DARWIN_USE_64_BIT_INODE 1 +#endif + +/* Number of bits in a file offset, on hosts where this is settable. */ +#undef _FILE_OFFSET_BITS + +/* Define for large files, on AIX-style hosts. */ +#undef _LARGE_FILES + +/* Define to 1 if on MINIX. */ +#undef _MINIX + +/* Define to 2 if the system does not provide POSIX.1 features except with + this defined. */ +#undef _POSIX_1_SOURCE + +/* Define to 1 if you need to in order for `stat' and other things to work. */ +#undef _POSIX_SOURCE + +/* Define like PROTOTYPES; this can be used by system headers. */ +#undef __PROTOTYPES + +/* Host architecture. */ +#undef host_cpu + +/* Host operating system. */ +#undef host_os diff --git a/config.sub b/config.sub new file mode 100755 index 0000000..b51fb8c --- /dev/null +++ b/config.sub @@ -0,0 +1,1790 @@ +#! /bin/sh +# Configuration validation subroutine script. +# Copyright 1992-2018 Free Software Foundation, Inc. + +timestamp='2018-08-29' + +# This file is free software; you can redistribute it and/or modify it +# under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, see . +# +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program that contains a +# configuration script generated by Autoconf, you may include it under +# the same distribution terms that you use for the rest of that +# program. This Exception is an additional permission under section 7 +# of the GNU General Public License, version 3 ("GPLv3"). + + +# Please send patches to . +# +# Configuration subroutine to validate and canonicalize a configuration type. +# Supply the specified configuration type as an argument. +# If it is invalid, we print an error message on stderr and exit with code 1. +# Otherwise, we print the canonical config type on stdout and succeed. + +# You can get the latest version of this script from: +# https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub + +# This file is supposed to be the same for all GNU packages +# and recognize all the CPU types, system types and aliases +# that are meaningful with *any* GNU software. +# Each package is responsible for reporting which valid configurations +# it does not support. The user should be able to distinguish +# a failure to support a valid configuration from a meaningless +# configuration. + +# The goal of this file is to map all the various variations of a given +# machine specification into a single specification in the form: +# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM +# or in some cases, the newer four-part form: +# CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM +# It is wrong to echo any other type of specification. + +me=`echo "$0" | sed -e 's,.*/,,'` + +usage="\ +Usage: $0 [OPTION] CPU-MFR-OPSYS or ALIAS + +Canonicalize a configuration name. + +Options: + -h, --help print this help, then exit + -t, --time-stamp print date of last modification, then exit + -v, --version print version number, then exit + +Report bugs and patches to ." + +version="\ +GNU config.sub ($timestamp) + +Copyright 1992-2018 Free Software Foundation, Inc. + +This is free software; see the source for copying conditions. There is NO +warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE." + +help=" +Try \`$me --help' for more information." + +# Parse command line +while test $# -gt 0 ; do + case $1 in + --time-stamp | --time* | -t ) + echo "$timestamp" ; exit ;; + --version | -v ) + echo "$version" ; exit ;; + --help | --h* | -h ) + echo "$usage"; exit ;; + -- ) # Stop option processing + shift; break ;; + - ) # Use stdin as input. + break ;; + -* ) + echo "$me: invalid option $1$help" + exit 1 ;; + + *local*) + # First pass through any local machine types. + echo "$1" + exit ;; + + * ) + break ;; + esac +done + +case $# in + 0) echo "$me: missing argument$help" >&2 + exit 1;; + 1) ;; + *) echo "$me: too many arguments$help" >&2 + exit 1;; +esac + +# Split fields of configuration type +IFS="-" read -r field1 field2 field3 field4 <&2 + exit 1 + ;; + *-*-*-*) + basic_machine=$field1-$field2 + os=$field3-$field4 + ;; + *-*-*) + # Ambiguous whether COMPANY is present, or skipped and KERNEL-OS is two + # parts + maybe_os=$field2-$field3 + case $maybe_os in + nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc \ + | linux-newlib* | linux-musl* | linux-uclibc* | uclinux-uclibc* \ + | uclinux-gnu* | kfreebsd*-gnu* | knetbsd*-gnu* | netbsd*-gnu* \ + | netbsd*-eabi* | kopensolaris*-gnu* | cloudabi*-eabi* \ + | storm-chaos* | os2-emx* | rtmk-nova*) + basic_machine=$field1 + os=$maybe_os + ;; + android-linux) + basic_machine=$field1-unknown + os=linux-android + ;; + *) + basic_machine=$field1-$field2 + os=$field3 + ;; + esac + ;; + *-*) + # A lone config we happen to match not fitting any patern + case $field1-$field2 in + decstation-3100) + basic_machine=mips-dec + os= + ;; + *-*) + # Second component is usually, but not always the OS + case $field2 in + # Prevent following clause from handling this valid os + sun*os*) + basic_machine=$field1 + os=$field2 + ;; + # Manufacturers + dec* | mips* | sequent* | encore* | pc533* | sgi* | sony* \ + | att* | 7300* | 3300* | delta* | motorola* | sun[234]* \ + | unicom* | ibm* | next | hp | isi* | apollo | altos* \ + | convergent* | ncr* | news | 32* | 3600* | 3100* \ + | hitachi* | c[123]* | convex* | sun | crds | omron* | dg \ + | ultra | tti* | harris | dolphin | highlevel | gould \ + | cbm | ns | masscomp | apple | axis | knuth | cray \ + | microblaze* | sim | cisco \ + | oki | wec | wrs | winbond) + basic_machine=$field1-$field2 + os= + ;; + *) + basic_machine=$field1 + os=$field2 + ;; + esac + ;; + esac + ;; + *) + # Convert single-component short-hands not valid as part of + # multi-component configurations. + case $field1 in + 386bsd) + basic_machine=i386-pc + os=bsd + ;; + a29khif) + basic_machine=a29k-amd + os=udi + ;; + adobe68k) + basic_machine=m68010-adobe + os=scout + ;; + alliant) + basic_machine=fx80-alliant + os= + ;; + altos | altos3068) + basic_machine=m68k-altos + os= + ;; + am29k) + basic_machine=a29k-none + os=bsd + ;; + amdahl) + basic_machine=580-amdahl + os=sysv + ;; + amiga) + basic_machine=m68k-unknown + os= + ;; + amigaos | amigados) + basic_machine=m68k-unknown + os=amigaos + ;; + amigaunix | amix) + basic_machine=m68k-unknown + os=sysv4 + ;; + apollo68) + basic_machine=m68k-apollo + os=sysv + ;; + apollo68bsd) + basic_machine=m68k-apollo + os=bsd + ;; + aros) + basic_machine=i386-pc + os=aros + ;; + aux) + basic_machine=m68k-apple + os=aux + ;; + balance) + basic_machine=ns32k-sequent + os=dynix + ;; + blackfin) + basic_machine=bfin-unknown + os=linux + ;; + cegcc) + basic_machine=arm-unknown + os=cegcc + ;; + convex-c1) + basic_machine=c1-convex + os=bsd + ;; + convex-c2) + basic_machine=c2-convex + os=bsd + ;; + convex-c32) + basic_machine=c32-convex + os=bsd + ;; + convex-c34) + basic_machine=c34-convex + os=bsd + ;; + convex-c38) + basic_machine=c38-convex + os=bsd + ;; + cray) + basic_machine=j90-cray + os=unicos + ;; + crds | unos) + basic_machine=m68k-crds + os= + ;; + da30) + basic_machine=m68k-da30 + os= + ;; + decstation | pmax | pmin | dec3100 | decstatn) + basic_machine=mips-dec + os= + ;; + delta88) + basic_machine=m88k-motorola + os=sysv3 + ;; + dicos) + basic_machine=i686-pc + os=dicos + ;; + djgpp) + basic_machine=i586-pc + os=msdosdjgpp + ;; + ebmon29k) + basic_machine=a29k-amd + os=ebmon + ;; + es1800 | OSE68k | ose68k | ose | OSE) + basic_machine=m68k-ericsson + os=ose + ;; + gmicro) + basic_machine=tron-gmicro + os=sysv + ;; + go32) + basic_machine=i386-pc + os=go32 + ;; + h8300hms) + basic_machine=h8300-hitachi + os=hms + ;; + h8300xray) + basic_machine=h8300-hitachi + os=xray + ;; + h8500hms) + basic_machine=h8500-hitachi + os=hms + ;; + harris) + basic_machine=m88k-harris + os=sysv3 + ;; + hp300) + basic_machine=m68k-hp + ;; + hp300bsd) + basic_machine=m68k-hp + os=bsd + ;; + hp300hpux) + basic_machine=m68k-hp + os=hpux + ;; + hppaosf) + basic_machine=hppa1.1-hp + os=osf + ;; + hppro) + basic_machine=hppa1.1-hp + os=proelf + ;; + i386mach) + basic_machine=i386-mach + os=mach + ;; + vsta) + basic_machine=i386-pc + os=vsta + ;; + isi68 | isi) + basic_machine=m68k-isi + os=sysv + ;; + m68knommu) + basic_machine=m68k-unknown + os=linux + ;; + magnum | m3230) + basic_machine=mips-mips + os=sysv + ;; + merlin) + basic_machine=ns32k-utek + os=sysv + ;; + mingw64) + basic_machine=x86_64-pc + os=mingw64 + ;; + mingw32) + basic_machine=i686-pc + os=mingw32 + ;; + mingw32ce) + basic_machine=arm-unknown + os=mingw32ce + ;; + monitor) + basic_machine=m68k-rom68k + os=coff + ;; + morphos) + basic_machine=powerpc-unknown + os=morphos + ;; + moxiebox) + basic_machine=moxie-unknown + os=moxiebox + ;; + msdos) + basic_machine=i386-pc + os=msdos + ;; + msys) + basic_machine=i686-pc + os=msys + ;; + mvs) + basic_machine=i370-ibm + os=mvs + ;; + nacl) + basic_machine=le32-unknown + os=nacl + ;; + ncr3000) + basic_machine=i486-ncr + os=sysv4 + ;; + netbsd386) + basic_machine=i386-pc + os=netbsd + ;; + netwinder) + basic_machine=armv4l-rebel + os=linux + ;; + news | news700 | news800 | news900) + basic_machine=m68k-sony + os=newsos + ;; + news1000) + basic_machine=m68030-sony + os=newsos + ;; + necv70) + basic_machine=v70-nec + os=sysv + ;; + nh3000) + basic_machine=m68k-harris + os=cxux + ;; + nh[45]000) + basic_machine=m88k-harris + os=cxux + ;; + nindy960) + basic_machine=i960-intel + os=nindy + ;; + mon960) + basic_machine=i960-intel + os=mon960 + ;; + nonstopux) + basic_machine=mips-compaq + os=nonstopux + ;; + os400) + basic_machine=powerpc-ibm + os=os400 + ;; + OSE68000 | ose68000) + basic_machine=m68000-ericsson + os=ose + ;; + os68k) + basic_machine=m68k-none + os=os68k + ;; + paragon) + basic_machine=i860-intel + os=osf + ;; + parisc) + basic_machine=hppa-unknown + os=linux + ;; + pw32) + basic_machine=i586-unknown + os=pw32 + ;; + rdos | rdos64) + basic_machine=x86_64-pc + os=rdos + ;; + rdos32) + basic_machine=i386-pc + os=rdos + ;; + rom68k) + basic_machine=m68k-rom68k + os=coff + ;; + sa29200) + basic_machine=a29k-amd + os=udi + ;; + sei) + basic_machine=mips-sei + os=seiux + ;; + sequent) + basic_machine=i386-sequent + os= + ;; + sps7) + basic_machine=m68k-bull + os=sysv2 + ;; + st2000) + basic_machine=m68k-tandem + os= + ;; + stratus) + basic_machine=i860-stratus + os=sysv4 + ;; + sun2) + basic_machine=m68000-sun + os= + ;; + sun2os3) + basic_machine=m68000-sun + os=sunos3 + ;; + sun2os4) + basic_machine=m68000-sun + os=sunos4 + ;; + sun3) + basic_machine=m68k-sun + os= + ;; + sun3os3) + basic_machine=m68k-sun + os=sunos3 + ;; + sun3os4) + basic_machine=m68k-sun + os=sunos4 + ;; + sun4) + basic_machine=sparc-sun + os= + ;; + sun4os3) + basic_machine=sparc-sun + os=sunos3 + ;; + sun4os4) + basic_machine=sparc-sun + os=sunos4 + ;; + sun4sol2) + basic_machine=sparc-sun + os=solaris2 + ;; + sun386 | sun386i | roadrunner) + basic_machine=i386-sun + os= + ;; + sv1) + basic_machine=sv1-cray + os=unicos + ;; + symmetry) + basic_machine=i386-sequent + os=dynix + ;; + t3e) + basic_machine=alphaev5-cray + os=unicos + ;; + t90) + basic_machine=t90-cray + os=unicos + ;; + toad1) + basic_machine=pdp10-xkl + os=tops20 + ;; + tpf) + basic_machine=s390x-ibm + os=tpf + ;; + udi29k) + basic_machine=a29k-amd + os=udi + ;; + ultra3) + basic_machine=a29k-nyu + os=sym1 + ;; + v810 | necv810) + basic_machine=v810-nec + os=none + ;; + vaxv) + basic_machine=vax-dec + os=sysv + ;; + vms) + basic_machine=vax-dec + os=vms + ;; + vxworks960) + basic_machine=i960-wrs + os=vxworks + ;; + vxworks68) + basic_machine=m68k-wrs + os=vxworks + ;; + vxworks29k) + basic_machine=a29k-wrs + os=vxworks + ;; + xbox) + basic_machine=i686-pc + os=mingw32 + ;; + ymp) + basic_machine=ymp-cray + os=unicos + ;; + *) + basic_machine=$1 + os= + ;; + esac + ;; +esac + +# Decode 1-component or ad-hoc basic machines +case $basic_machine in + # Here we handle the default manufacturer of certain CPU types. It is in + # some cases the only manufacturer, in others, it is the most popular. + w89k) + cpu=hppa1.1 + vendor=winbond + ;; + op50n) + cpu=hppa1.1 + vendor=oki + ;; + op60c) + cpu=hppa1.1 + vendor=oki + ;; + ibm*) + cpu=i370 + vendor=ibm + ;; + orion105) + cpu=clipper + vendor=highlevel + ;; + mac | mpw | mac-mpw) + cpu=m68k + vendor=apple + ;; + pmac | pmac-mpw) + cpu=powerpc + vendor=apple + ;; + + # Recognize the various machine names and aliases which stand + # for a CPU type and a company and sometimes even an OS. + 3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc) + cpu=m68000 + vendor=att + ;; + 3b*) + cpu=we32k + vendor=att + ;; + bluegene*) + cpu=powerpc + vendor=ibm + os=cnk + ;; + decsystem10* | dec10*) + cpu=pdp10 + vendor=dec + os=tops10 + ;; + decsystem20* | dec20*) + cpu=pdp10 + vendor=dec + os=tops20 + ;; + delta | 3300 | motorola-3300 | motorola-delta \ + | 3300-motorola | delta-motorola) + cpu=m68k + vendor=motorola + ;; + dpx2*) + cpu=m68k + vendor=bull + os=sysv3 + ;; + encore | umax | mmax) + cpu=ns32k + vendor=encore + ;; + elxsi) + cpu=elxsi + vendor=elxsi + os=${os:-bsd} + ;; + fx2800) + cpu=i860 + vendor=alliant + ;; + genix) + cpu=ns32k + vendor=ns + ;; + h3050r* | hiux*) + cpu=hppa1.1 + vendor=hitachi + os=hiuxwe2 + ;; + hp3k9[0-9][0-9] | hp9[0-9][0-9]) + cpu=hppa1.0 + vendor=hp + ;; + hp9k2[0-9][0-9] | hp9k31[0-9]) + cpu=m68000 + vendor=hp + ;; + hp9k3[2-9][0-9]) + cpu=m68k + vendor=hp + ;; + hp9k6[0-9][0-9] | hp6[0-9][0-9]) + cpu=hppa1.0 + vendor=hp + ;; + hp9k7[0-79][0-9] | hp7[0-79][0-9]) + cpu=hppa1.1 + vendor=hp + ;; + hp9k78[0-9] | hp78[0-9]) + # FIXME: really hppa2.0-hp + cpu=hppa1.1 + vendor=hp + ;; + hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893) + # FIXME: really hppa2.0-hp + cpu=hppa1.1 + vendor=hp + ;; + hp9k8[0-9][13679] | hp8[0-9][13679]) + cpu=hppa1.1 + vendor=hp + ;; + hp9k8[0-9][0-9] | hp8[0-9][0-9]) + cpu=hppa1.0 + vendor=hp + ;; + i*86v32) + cpu=`echo "$1" | sed -e 's/86.*/86/'` + vendor=pc + os=sysv32 + ;; + i*86v4*) + cpu=`echo "$1" | sed -e 's/86.*/86/'` + vendor=pc + os=sysv4 + ;; + i*86v) + cpu=`echo "$1" | sed -e 's/86.*/86/'` + vendor=pc + os=sysv + ;; + i*86sol2) + cpu=`echo "$1" | sed -e 's/86.*/86/'` + vendor=pc + os=solaris2 + ;; + j90 | j90-cray) + cpu=j90 + vendor=cray + os=${os:-unicos} + ;; + iris | iris4d) + cpu=mips + vendor=sgi + case $os in + irix*) + ;; + *) + os=irix4 + ;; + esac + ;; + miniframe) + cpu=m68000 + vendor=convergent + ;; + *mint | mint[0-9]* | *MiNT | *MiNT[0-9]*) + cpu=m68k + vendor=atari + os=mint + ;; + news-3600 | risc-news) + cpu=mips + vendor=sony + os=newsos + ;; + next | m*-next) + cpu=m68k + vendor=next + case $os in + nextstep* ) + ;; + ns2*) + os=nextstep2 + ;; + *) + os=nextstep3 + ;; + esac + ;; + np1) + cpu=np1 + vendor=gould + ;; + op50n-* | op60c-*) + cpu=hppa1.1 + vendor=oki + os=proelf + ;; + pa-hitachi) + cpu=hppa1.1 + vendor=hitachi + os=hiuxwe2 + ;; + pbd) + cpu=sparc + vendor=tti + ;; + pbb) + cpu=m68k + vendor=tti + ;; + pc532) + cpu=ns32k + vendor=pc532 + ;; + pn) + cpu=pn + vendor=gould + ;; + power) + cpu=power + vendor=ibm + ;; + ps2) + cpu=i386 + vendor=ibm + ;; + rm[46]00) + cpu=mips + vendor=siemens + ;; + rtpc | rtpc-*) + cpu=romp + vendor=ibm + ;; + sde) + cpu=mipsisa32 + vendor=sde + os=${os:-elf} + ;; + simso-wrs) + cpu=sparclite + vendor=wrs + os=vxworks + ;; + tower | tower-32) + cpu=m68k + vendor=ncr + ;; + vpp*|vx|vx-*) + cpu=f301 + vendor=fujitsu + ;; + w65) + cpu=w65 + vendor=wdc + ;; + w89k-*) + cpu=hppa1.1 + vendor=winbond + os=proelf + ;; + none) + cpu=none + vendor=none + ;; + leon|leon[3-9]) + cpu=sparc + vendor=$basic_machine + ;; + leon-*|leon[3-9]-*) + cpu=sparc + vendor=`echo "$basic_machine" | sed 's/-.*//'` + ;; + + *-*) + IFS="-" read -r cpu vendor <&2 + exit 1 + ;; + esac + ;; +esac + +# Here we canonicalize certain aliases for manufacturers. +case $vendor in + digital*) + vendor=dec + ;; + commodore*) + vendor=cbm + ;; + *) + ;; +esac + +# Decode manufacturer-specific aliases for certain operating systems. + +if [ x$os != x ] +then +case $os in + # First match some system type aliases that might get confused + # with valid system types. + # solaris* is a basic system type, with this one exception. + auroraux) + os=auroraux + ;; + bluegene*) + os=cnk + ;; + solaris1 | solaris1.*) + os=`echo $os | sed -e 's|solaris1|sunos4|'` + ;; + solaris) + os=solaris2 + ;; + unixware*) + os=sysv4.2uw + ;; + gnu/linux*) + os=`echo $os | sed -e 's|gnu/linux|linux-gnu|'` + ;; + # es1800 is here to avoid being matched by es* (a different OS) + es1800*) + os=ose + ;; + # Some version numbers need modification + chorusos*) + os=chorusos + ;; + isc) + os=isc2.2 + ;; + sco6) + os=sco5v6 + ;; + sco5) + os=sco3.2v5 + ;; + sco4) + os=sco3.2v4 + ;; + sco3.2.[4-9]*) + os=`echo $os | sed -e 's/sco3.2./sco3.2v/'` + ;; + sco3.2v[4-9]* | sco5v6*) + # Don't forget version if it is 3.2v4 or newer. + ;; + scout) + # Don't match below + ;; + sco*) + os=sco3.2v2 + ;; + psos*) + os=psos + ;; + # Now accept the basic system types. + # The portable systems comes first. + # Each alternative MUST end in a * to match a version number. + # sysv* is not here because it comes later, after sysvr4. + gnu* | bsd* | mach* | minix* | genix* | ultrix* | irix* \ + | *vms* | esix* | aix* | cnk* | sunos | sunos[34]*\ + | hpux* | unos* | osf* | luna* | dgux* | auroraux* | solaris* \ + | sym* | kopensolaris* | plan9* \ + | amigaos* | amigados* | msdos* | newsos* | unicos* | aof* \ + | aos* | aros* | cloudabi* | sortix* \ + | nindy* | vxsim* | vxworks* | ebmon* | hms* | mvs* \ + | clix* | riscos* | uniplus* | iris* | isc* | rtu* | xenix* \ + | knetbsd* | mirbsd* | netbsd* \ + | bitrig* | openbsd* | solidbsd* | libertybsd* \ + | ekkobsd* | kfreebsd* | freebsd* | riscix* | lynxos* \ + | bosx* | nextstep* | cxux* | aout* | elf* | oabi* \ + | ptx* | coff* | ecoff* | winnt* | domain* | vsta* \ + | udi* | eabi* | lites* | ieee* | go32* | aux* | hcos* \ + | chorusrdb* | cegcc* | glidix* \ + | cygwin* | msys* | pe* | moss* | proelf* | rtems* \ + | midipix* | mingw32* | mingw64* | linux-gnu* | linux-android* \ + | linux-newlib* | linux-musl* | linux-uclibc* \ + | uxpv* | beos* | mpeix* | udk* | moxiebox* \ + | interix* | uwin* | mks* | rhapsody* | darwin* \ + | openstep* | oskit* | conix* | pw32* | nonstopux* \ + | storm-chaos* | tops10* | tenex* | tops20* | its* \ + | os2* | vos* | palmos* | uclinux* | nucleus* \ + | morphos* | superux* | rtmk* | windiss* \ + | powermax* | dnix* | nx6 | nx7 | sei* | dragonfly* \ + | skyos* | haiku* | rdos* | toppers* | drops* | es* \ + | onefs* | tirtos* | phoenix* | fuchsia* | redox* | bme* \ + | midnightbsd*) + # Remember, each alternative MUST END IN *, to match a version number. + ;; + qnx*) + case $cpu in + x86 | i*86) + ;; + *) + os=nto-$os + ;; + esac + ;; + hiux*) + os=hiuxwe2 + ;; + nto-qnx*) + ;; + nto*) + os=`echo $os | sed -e 's|nto|nto-qnx|'` + ;; + sim | xray | os68k* | v88r* \ + | windows* | osx | abug | netware* | os9* \ + | macos* | mpw* | magic* | mmixware* | mon960* | lnews*) + ;; + linux-dietlibc) + os=linux-dietlibc + ;; + linux*) + os=`echo $os | sed -e 's|linux|linux-gnu|'` + ;; + lynx*178) + os=lynxos178 + ;; + lynx*5) + os=lynxos5 + ;; + lynx*) + os=lynxos + ;; + mac*) + os=`echo "$os" | sed -e 's|mac|macos|'` + ;; + opened*) + os=openedition + ;; + os400*) + os=os400 + ;; + sunos5*) + os=`echo "$os" | sed -e 's|sunos5|solaris2|'` + ;; + sunos6*) + os=`echo "$os" | sed -e 's|sunos6|solaris3|'` + ;; + wince*) + os=wince + ;; + utek*) + os=bsd + ;; + dynix*) + os=bsd + ;; + acis*) + os=aos + ;; + atheos*) + os=atheos + ;; + syllable*) + os=syllable + ;; + 386bsd) + os=bsd + ;; + ctix* | uts*) + os=sysv + ;; + nova*) + os=rtmk-nova + ;; + ns2) + os=nextstep2 + ;; + nsk*) + os=nsk + ;; + # Preserve the version number of sinix5. + sinix5.*) + os=`echo $os | sed -e 's|sinix|sysv|'` + ;; + sinix*) + os=sysv4 + ;; + tpf*) + os=tpf + ;; + triton*) + os=sysv3 + ;; + oss*) + os=sysv3 + ;; + svr4*) + os=sysv4 + ;; + svr3) + os=sysv3 + ;; + sysvr4) + os=sysv4 + ;; + # This must come after sysvr4. + sysv*) + ;; + ose*) + os=ose + ;; + *mint | mint[0-9]* | *MiNT | MiNT[0-9]*) + os=mint + ;; + zvmoe) + os=zvmoe + ;; + dicos*) + os=dicos + ;; + pikeos*) + # Until real need of OS specific support for + # particular features comes up, bare metal + # configurations are quite functional. + case $cpu in + arm*) + os=eabi + ;; + *) + os=elf + ;; + esac + ;; + nacl*) + ;; + ios) + ;; + none) + ;; + *-eabi) + ;; + *) + echo Invalid configuration \`"$1"\': system \`"$os"\' not recognized 1>&2 + exit 1 + ;; +esac +else + +# Here we handle the default operating systems that come with various machines. +# The value should be what the vendor currently ships out the door with their +# machine or put another way, the most popular os provided with the machine. + +# Note that if you're going to try to match "-MANUFACTURER" here (say, +# "-sun"), then you have to tell the case statement up towards the top +# that MANUFACTURER isn't an operating system. Otherwise, code above +# will signal an error saying that MANUFACTURER isn't an operating +# system, and we'll never get to this point. + +case $cpu-$vendor in + score-*) + os=elf + ;; + spu-*) + os=elf + ;; + *-acorn) + os=riscix1.2 + ;; + arm*-rebel) + os=linux + ;; + arm*-semi) + os=aout + ;; + c4x-* | tic4x-*) + os=coff + ;; + c8051-*) + os=elf + ;; + clipper-intergraph) + os=clix + ;; + hexagon-*) + os=elf + ;; + tic54x-*) + os=coff + ;; + tic55x-*) + os=coff + ;; + tic6x-*) + os=coff + ;; + # This must come before the *-dec entry. + pdp10-*) + os=tops20 + ;; + pdp11-*) + os=none + ;; + *-dec | vax-*) + os=ultrix4.2 + ;; + m68*-apollo) + os=domain + ;; + i386-sun) + os=sunos4.0.2 + ;; + m68000-sun) + os=sunos3 + ;; + m68*-cisco) + os=aout + ;; + mep-*) + os=elf + ;; + mips*-cisco) + os=elf + ;; + mips*-*) + os=elf + ;; + or32-*) + os=coff + ;; + *-tti) # must be before sparc entry or we get the wrong os. + os=sysv3 + ;; + sparc-* | *-sun) + os=sunos4.1.1 + ;; + pru-*) + os=elf + ;; + *-be) + os=beos + ;; + *-ibm) + os=aix + ;; + *-knuth) + os=mmixware + ;; + *-wec) + os=proelf + ;; + *-winbond) + os=proelf + ;; + *-oki) + os=proelf + ;; + *-hp) + os=hpux + ;; + *-hitachi) + os=hiux + ;; + i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent) + os=sysv + ;; + *-cbm) + os=amigaos + ;; + *-dg) + os=dgux + ;; + *-dolphin) + os=sysv3 + ;; + m68k-ccur) + os=rtu + ;; + m88k-omron*) + os=luna + ;; + *-next) + os=nextstep + ;; + *-sequent) + os=ptx + ;; + *-crds) + os=unos + ;; + *-ns) + os=genix + ;; + i370-*) + os=mvs + ;; + *-gould) + os=sysv + ;; + *-highlevel) + os=bsd + ;; + *-encore) + os=bsd + ;; + *-sgi) + os=irix + ;; + *-siemens) + os=sysv4 + ;; + *-masscomp) + os=rtu + ;; + f30[01]-fujitsu | f700-fujitsu) + os=uxpv + ;; + *-rom68k) + os=coff + ;; + *-*bug) + os=coff + ;; + *-apple) + os=macos + ;; + *-atari*) + os=mint + ;; + *-wrs) + os=vxworks + ;; + *) + os=none + ;; +esac +fi + +# Here we handle the case where we know the os, and the CPU type, but not the +# manufacturer. We pick the logical manufacturer. +case $vendor in + unknown) + case $os in + riscix*) + vendor=acorn + ;; + sunos*) + vendor=sun + ;; + cnk*|-aix*) + vendor=ibm + ;; + beos*) + vendor=be + ;; + hpux*) + vendor=hp + ;; + mpeix*) + vendor=hp + ;; + hiux*) + vendor=hitachi + ;; + unos*) + vendor=crds + ;; + dgux*) + vendor=dg + ;; + luna*) + vendor=omron + ;; + genix*) + vendor=ns + ;; + clix*) + vendor=intergraph + ;; + mvs* | opened*) + vendor=ibm + ;; + os400*) + vendor=ibm + ;; + ptx*) + vendor=sequent + ;; + tpf*) + vendor=ibm + ;; + vxsim* | vxworks* | windiss*) + vendor=wrs + ;; + aux*) + vendor=apple + ;; + hms*) + vendor=hitachi + ;; + mpw* | macos*) + vendor=apple + ;; + *mint | mint[0-9]* | *MiNT | MiNT[0-9]*) + vendor=atari + ;; + vos*) + vendor=stratus + ;; + esac + ;; +esac + +echo "$cpu-$vendor-$os" +exit + +# Local variables: +# eval: (add-hook 'before-save-hook 'time-stamp) +# time-stamp-start: "timestamp='" +# time-stamp-format: "%:y-%02m-%02d" +# time-stamp-end: "'" +# End: diff --git a/configure b/configure new file mode 100755 index 0000000..687131b --- /dev/null +++ b/configure @@ -0,0 +1,25814 @@ +#! /bin/sh +# Guess values for system-dependent variables and create Makefiles. +# Generated by GNU Autoconf 2.69 for nbdkit 1.22.4. +# +# +# Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc. +# +# +# This configure script is free software; the Free Software Foundation +# gives unlimited permission to copy, distribute and modify it. +## -------------------- ## +## M4sh Initialization. ## +## -------------------- ## + +# Be more Bourne compatible +DUALCASE=1; export DUALCASE # for MKS sh +if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then : + emulate sh + NULLCMD=: + # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which + # is contrary to our usage. Disable this feature. + alias -g '${1+"$@"}'='"$@"' + setopt NO_GLOB_SUBST +else + case `(set -o) 2>/dev/null` in #( + *posix*) : + set -o posix ;; #( + *) : + ;; +esac +fi + + +as_nl=' +' +export as_nl +# Printing a long string crashes Solaris 7 /usr/bin/printf. +as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\' +as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo +as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo +# Prefer a ksh shell builtin over an external printf program on Solaris, +# but without wasting forks for bash or zsh. +if test -z "$BASH_VERSION$ZSH_VERSION" \ + && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then + as_echo='print -r --' + as_echo_n='print -rn --' +elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then + as_echo='printf %s\n' + as_echo_n='printf %s' +else + if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then + as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"' + as_echo_n='/usr/ucb/echo -n' + else + as_echo_body='eval expr "X$1" : "X\\(.*\\)"' + as_echo_n_body='eval + arg=$1; + case $arg in #( + *"$as_nl"*) + expr "X$arg" : "X\\(.*\\)$as_nl"; + arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;; + esac; + expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl" + ' + export as_echo_n_body + as_echo_n='sh -c $as_echo_n_body as_echo' + fi + export as_echo_body + as_echo='sh -c $as_echo_body as_echo' +fi + +# The user is always right. +if test "${PATH_SEPARATOR+set}" != set; then + PATH_SEPARATOR=: + (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && { + (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 || + PATH_SEPARATOR=';' + } +fi + + +# IFS +# We need space, tab and new line, in precisely that order. Quoting is +# there to prevent editors from complaining about space-tab. +# (If _AS_PATH_WALK were called with IFS unset, it would disable word +# splitting by setting IFS to empty value.) +IFS=" "" $as_nl" + +# Find who we are. Look in the path if we contain no directory separator. +as_myself= +case $0 in #(( + *[\\/]* ) as_myself=$0 ;; + *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break + done +IFS=$as_save_IFS + + ;; +esac +# We did not find ourselves, most probably we were run as `sh COMMAND' +# in which case we are not to be found in the path. +if test "x$as_myself" = x; then + as_myself=$0 +fi +if test ! -f "$as_myself"; then + $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2 + exit 1 +fi + +# Unset variables that we do not need and which cause bugs (e.g. in +# pre-3.0 UWIN ksh). But do not cause bugs in bash 2.01; the "|| exit 1" +# suppresses any "Segmentation fault" message there. '((' could +# trigger a bug in pdksh 5.2.14. +for as_var in BASH_ENV ENV MAIL MAILPATH +do eval test x\${$as_var+set} = xset \ + && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || : +done +PS1='$ ' +PS2='> ' +PS4='+ ' + +# NLS nuisances. +LC_ALL=C +export LC_ALL +LANGUAGE=C +export LANGUAGE + +# CDPATH. +(unset CDPATH) >/dev/null 2>&1 && unset CDPATH + +# Use a proper internal environment variable to ensure we don't fall + # into an infinite loop, continuously re-executing ourselves. + if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then + _as_can_reexec=no; export _as_can_reexec; + # We cannot yet assume a decent shell, so we have to provide a +# neutralization value for shells without unset; and this also +# works around shells that cannot unset nonexistent variables. +# Preserve -v and -x to the replacement shell. +BASH_ENV=/dev/null +ENV=/dev/null +(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV +case $- in # (((( + *v*x* | *x*v* ) as_opts=-vx ;; + *v* ) as_opts=-v ;; + *x* ) as_opts=-x ;; + * ) as_opts= ;; +esac +exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"} +# Admittedly, this is quite paranoid, since all the known shells bail +# out after a failed `exec'. +$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2 +as_fn_exit 255 + fi + # We don't want this to propagate to other subprocesses. + { _as_can_reexec=; unset _as_can_reexec;} +if test "x$CONFIG_SHELL" = x; then + as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then : + emulate sh + NULLCMD=: + # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which + # is contrary to our usage. Disable this feature. + alias -g '\${1+\"\$@\"}'='\"\$@\"' + setopt NO_GLOB_SUBST +else + case \`(set -o) 2>/dev/null\` in #( + *posix*) : + set -o posix ;; #( + *) : + ;; +esac +fi +" + as_required="as_fn_return () { (exit \$1); } +as_fn_success () { as_fn_return 0; } +as_fn_failure () { as_fn_return 1; } +as_fn_ret_success () { return 0; } +as_fn_ret_failure () { return 1; } + +exitcode=0 +as_fn_success || { exitcode=1; echo as_fn_success failed.; } +as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; } +as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; } +as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; } +if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then : + +else + exitcode=1; echo positional parameters were not saved. +fi +test x\$exitcode = x0 || exit 1 +test -x / || exit 1" + as_suggested=" as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO + as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO + eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" && + test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1 +test \$(( 1 + 1 )) = 2 || exit 1 + + test -n \"\${ZSH_VERSION+set}\${BASH_VERSION+set}\" || ( + ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\' + ECHO=\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO + ECHO=\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO + PATH=/empty FPATH=/empty; export PATH FPATH + test \"X\`printf %s \$ECHO\`\" = \"X\$ECHO\" \\ + || test \"X\`print -r -- \$ECHO\`\" = \"X\$ECHO\" ) || exit 1" + if (eval "$as_required") 2>/dev/null; then : + as_have_required=yes +else + as_have_required=no +fi + if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null; then : + +else + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +as_found=false +for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + as_found=: + case $as_dir in #( + /*) + for as_base in sh bash ksh sh5; do + # Try only shells that exist, to save several forks. + as_shell=$as_dir/$as_base + if { test -f "$as_shell" || test -f "$as_shell.exe"; } && + { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$as_shell"; } 2>/dev/null; then : + CONFIG_SHELL=$as_shell as_have_required=yes + if { $as_echo "$as_bourne_compatible""$as_suggested" | as_run=a "$as_shell"; } 2>/dev/null; then : + break 2 +fi +fi + done;; + esac + as_found=false +done +$as_found || { if { test -f "$SHELL" || test -f "$SHELL.exe"; } && + { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$SHELL"; } 2>/dev/null; then : + CONFIG_SHELL=$SHELL as_have_required=yes +fi; } +IFS=$as_save_IFS + + + if test "x$CONFIG_SHELL" != x; then : + export CONFIG_SHELL + # We cannot yet assume a decent shell, so we have to provide a +# neutralization value for shells without unset; and this also +# works around shells that cannot unset nonexistent variables. +# Preserve -v and -x to the replacement shell. +BASH_ENV=/dev/null +ENV=/dev/null +(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV +case $- in # (((( + *v*x* | *x*v* ) as_opts=-vx ;; + *v* ) as_opts=-v ;; + *x* ) as_opts=-x ;; + * ) as_opts= ;; +esac +exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"} +# Admittedly, this is quite paranoid, since all the known shells bail +# out after a failed `exec'. +$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2 +exit 255 +fi + + if test x$as_have_required = xno; then : + $as_echo "$0: This script requires a shell more modern than all" + $as_echo "$0: the shells that I found on your system." + if test x${ZSH_VERSION+set} = xset ; then + $as_echo "$0: In particular, zsh $ZSH_VERSION has bugs and should" + $as_echo "$0: be upgraded to zsh 4.3.4 or later." + else + $as_echo "$0: Please tell bug-autoconf@gnu.org about your system, +$0: including any error possibly output before this +$0: message. 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"cannot create directory $as_dir" + + +} # as_fn_mkdir_p + +# as_fn_executable_p FILE +# ----------------------- +# Test if FILE is an executable regular file. +as_fn_executable_p () +{ + test -f "$1" && test -x "$1" +} # as_fn_executable_p +# as_fn_append VAR VALUE +# ---------------------- +# Append the text in VALUE to the end of the definition contained in VAR. Take +# advantage of any shell optimizations that allow amortized linear growth over +# repeated appends, instead of the typical quadratic growth present in naive +# implementations. +if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then : + eval 'as_fn_append () + { + eval $1+=\$2 + }' +else + as_fn_append () + { + eval $1=\$$1\$2 + } +fi # as_fn_append + +# as_fn_arith ARG... +# ------------------ +# Perform arithmetic evaluation on the ARGs, and store the result in the +# global $as_val. Take advantage of shells that can avoid forks. The arguments +# must be portable across $(()) and expr. +if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then : + eval 'as_fn_arith () + { + as_val=$(( $* )) + }' +else + as_fn_arith () + { + as_val=`expr "$@" || test $? -eq 1` + } +fi # as_fn_arith + + +# as_fn_error STATUS ERROR [LINENO LOG_FD] +# ---------------------------------------- +# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are +# provided, also output the error to LOG_FD, referencing LINENO. Then exit the +# script with STATUS, using 1 if that was 0. +as_fn_error () +{ + as_status=$1; test $as_status -eq 0 && as_status=1 + if test "$4"; then + as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4 + fi + $as_echo "$as_me: error: $2" >&2 + as_fn_exit $as_status +} # as_fn_error + +if expr a : '\(a\)' >/dev/null 2>&1 && + test "X`expr 00001 : '.*\(...\)'`" = X001; then + as_expr=expr +else + as_expr=false +fi + +if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then + as_basename=basename +else + as_basename=false +fi + +if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then + as_dirname=dirname +else + as_dirname=false +fi + +as_me=`$as_basename -- "$0" || +$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \ + X"$0" : 'X\(//\)$' \| \ + X"$0" : 'X\(/\)' \| . 2>/dev/null || +$as_echo X/"$0" | + sed '/^.*\/\([^/][^/]*\)\/*$/{ + s//\1/ + q + } + /^X\/\(\/\/\)$/{ + s//\1/ + q + } + /^X\/\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + +# Avoid depending upon Character Ranges. +as_cr_letters='abcdefghijklmnopqrstuvwxyz' +as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ' +as_cr_Letters=$as_cr_letters$as_cr_LETTERS +as_cr_digits='0123456789' +as_cr_alnum=$as_cr_Letters$as_cr_digits + + + as_lineno_1=$LINENO as_lineno_1a=$LINENO + as_lineno_2=$LINENO as_lineno_2a=$LINENO + eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" && + test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || { + # Blame Lee E. McMahon (1931-1989) for sed's syntax. :-) + sed -n ' + p + /[$]LINENO/= + ' <$as_myself | + sed ' + s/[$]LINENO.*/&-/ + t lineno + b + :lineno + N + :loop + s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/ + t loop + s/-\n.*// + ' >$as_me.lineno && + chmod +x "$as_me.lineno" || + { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; } + + # If we had to re-execute with $CONFIG_SHELL, we're ensured to have + # already done that, so ensure we don't try to do so again and fall + # in an infinite loop. This has already happened in practice. + _as_can_reexec=no; export _as_can_reexec + # Don't try to exec as it changes $[0], causing all sort of problems + # (the dirname of $[0] is not the place where we might find the + # original and so on. Autoconf is especially sensitive to this). + . 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See below for descriptions of some of the useful variables. + +Defaults for the options are specified in brackets. + +Configuration: + -h, --help display this help and exit + --help=short display options specific to this package + --help=recursive display the short help of all the included packages + -V, --version display version information and exit + -q, --quiet, --silent do not print \`checking ...' messages + --cache-file=FILE cache test results in FILE [disabled] + -C, --config-cache alias for \`--cache-file=config.cache' + -n, --no-create do not create output files + --srcdir=DIR find the sources in DIR [configure dir or \`..'] + +Installation directories: + --prefix=PREFIX install architecture-independent files in PREFIX + [$ac_default_prefix] + --exec-prefix=EPREFIX install architecture-dependent files in EPREFIX + [PREFIX] + +By default, \`make install' will install all the files in +\`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc. You can specify +an installation 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What about this header? +case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in #(( + yes:no: ) + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&5 +$as_echo "$as_me: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&2;} + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5 +$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;} + ;; + no:yes:* ) + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: present but cannot be compiled" >&5 +$as_echo "$as_me: WARNING: $2: present but cannot be compiled" >&2;} + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: check for missing prerequisite headers?" >&5 +$as_echo "$as_me: WARNING: $2: check for missing prerequisite headers?" >&2;} + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: see the Autoconf documentation" >&5 +$as_echo "$as_me: WARNING: $2: see the Autoconf documentation" >&2;} + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: section \"Present But Cannot Be Compiled\"" >&5 +$as_echo "$as_me: WARNING: $2: section \"Present But Cannot Be Compiled\"" >&2;} + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5 +$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;} + ;; +esac + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5 +$as_echo_n "checking for $2... " >&6; } +if eval \${$3+:} false; then : + $as_echo_n "(cached) " >&6 +else + eval "$3=\$ac_header_compiler" +fi +eval ac_res=\$$3 + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 +$as_echo "$ac_res" >&6; } +fi + eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno + +} # ac_fn_c_check_header_mongrel + +# ac_fn_c_try_run LINENO +# ---------------------- +# Try to link conftest.$ac_ext, and return whether this succeeded. Assumes +# that executables *can* be run. +ac_fn_c_try_run () +{ + as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + if { { ac_try="$ac_link" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_link") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } && { ac_try='./conftest$ac_exeext' + { { case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_try") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; }; then : + ac_retval=0 +else + $as_echo "$as_me: program exited with status $ac_status" >&5 + $as_echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + ac_retval=$ac_status +fi + rm -rf conftest.dSYM conftest_ipa8_conftest.oo + eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno + as_fn_set_status $ac_retval + +} # ac_fn_c_try_run + +# ac_fn_c_check_header_compile LINENO HEADER VAR INCLUDES +# ------------------------------------------------------- +# Tests whether HEADER exists and can be compiled using the include files in +# INCLUDES, setting the cache variable VAR accordingly. +ac_fn_c_check_header_compile () +{ + as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5 +$as_echo_n "checking for $2... " >&6; } +if eval \${$3+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$4 +#include <$2> +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + eval "$3=yes" +else + eval "$3=no" +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +eval ac_res=\$$3 + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 +$as_echo "$ac_res" >&6; } + eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno + +} # ac_fn_c_check_header_compile + +# ac_fn_c_try_link LINENO +# ----------------------- +# Try to link conftest.$ac_ext, and return whether this succeeded. +ac_fn_c_try_link () +{ + as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + rm -f conftest.$ac_objext conftest$ac_exeext + if { { ac_try="$ac_link" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_link") 2>conftest.err + ac_status=$? + if test -s conftest.err; then + grep -v '^ *+' conftest.err >conftest.er1 + cat conftest.er1 >&5 + mv -f conftest.er1 conftest.err + fi + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } && { + test -z "$ac_c_werror_flag" || + test ! -s conftest.err + } && test -s conftest$ac_exeext && { + test "$cross_compiling" = yes || + test -x conftest$ac_exeext + }; then : + ac_retval=0 +else + $as_echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + ac_retval=1 +fi + # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information + # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would + # interfere with the next link command; also delete a directory that is + # left behind by Apple's compiler. We do this before executing the actions. + rm -rf conftest.dSYM conftest_ipa8_conftest.oo + eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno + as_fn_set_status $ac_retval + +} # ac_fn_c_try_link + +# ac_fn_c_check_func LINENO FUNC VAR +# ---------------------------------- +# Tests whether FUNC exists, setting the cache variable VAR accordingly +ac_fn_c_check_func () +{ + as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5 +$as_echo_n "checking for $2... " >&6; } +if eval \${$3+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +/* Define $2 to an innocuous variant, in case declares $2. + For example, HP-UX 11i declares gettimeofday. */ +#define $2 innocuous_$2 + +/* System header to define __stub macros and hopefully few prototypes, + which can conflict with char $2 (); below. + Prefer to if __STDC__ is defined, since + exists even on freestanding compilers. */ + +#ifdef __STDC__ +# include +#else +# include +#endif + +#undef $2 + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char $2 (); +/* The GNU C library defines this for functions which it implements + to always fail with ENOSYS. Some functions are actually named + something starting with __ and the normal name is an alias. */ +#if defined __stub_$2 || defined __stub___$2 +choke me +#endif + +int +main () +{ +return $2 (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + eval "$3=yes" +else + eval "$3=no" +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +fi +eval ac_res=\$$3 + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 +$as_echo "$ac_res" >&6; } + eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno + +} # ac_fn_c_check_func + +# ac_fn_cxx_try_compile LINENO +# ---------------------------- +# Try to compile conftest.$ac_ext, and return whether this succeeded. +ac_fn_cxx_try_compile () +{ + as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + rm -f conftest.$ac_objext + if { { ac_try="$ac_compile" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_compile") 2>conftest.err + ac_status=$? + if test -s conftest.err; then + grep -v '^ *+' conftest.err >conftest.er1 + cat conftest.er1 >&5 + mv -f conftest.er1 conftest.err + fi + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } && { + test -z "$ac_cxx_werror_flag" || + test ! -s conftest.err + } && test -s conftest.$ac_objext; then : + ac_retval=0 +else + $as_echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + ac_retval=1 +fi + eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno + as_fn_set_status $ac_retval + +} # ac_fn_cxx_try_compile + +# ac_fn_cxx_try_cpp LINENO +# ------------------------ +# Try to preprocess conftest.$ac_ext, and return whether this succeeded. +ac_fn_cxx_try_cpp () +{ + as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + if { { ac_try="$ac_cpp conftest.$ac_ext" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err + ac_status=$? + if test -s conftest.err; then + grep -v '^ *+' conftest.err >conftest.er1 + cat conftest.er1 >&5 + mv -f conftest.er1 conftest.err + fi + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } > conftest.i && { + test -z "$ac_cxx_preproc_warn_flag$ac_cxx_werror_flag" || + test ! -s conftest.err + }; then : + ac_retval=0 +else + $as_echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + ac_retval=1 +fi + eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno + as_fn_set_status $ac_retval + +} # ac_fn_cxx_try_cpp + +# ac_fn_cxx_try_link LINENO +# ------------------------- +# Try to link conftest.$ac_ext, and return whether this succeeded. +ac_fn_cxx_try_link () +{ + as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + rm -f conftest.$ac_objext conftest$ac_exeext + if { { ac_try="$ac_link" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_link") 2>conftest.err + ac_status=$? + if test -s conftest.err; then + grep -v '^ *+' conftest.err >conftest.er1 + cat conftest.er1 >&5 + mv -f conftest.er1 conftest.err + fi + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } && { + test -z "$ac_cxx_werror_flag" || + test ! -s conftest.err + } && test -s conftest$ac_exeext && { + test "$cross_compiling" = yes || + test -x conftest$ac_exeext + }; then : + ac_retval=0 +else + $as_echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + ac_retval=1 +fi + # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information + # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would + # interfere with the next link command; also delete a directory that is + # left behind by Apple's compiler. We do this before executing the actions. + rm -rf conftest.dSYM conftest_ipa8_conftest.oo + eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno + as_fn_set_status $ac_retval + +} # ac_fn_cxx_try_link + +# ac_fn_c_check_decl LINENO SYMBOL VAR INCLUDES +# --------------------------------------------- +# Tests whether SYMBOL is declared in INCLUDES, setting cache variable VAR +# accordingly. +ac_fn_c_check_decl () +{ + as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + as_decl_name=`echo $2|sed 's/ *(.*//'` + as_decl_use=`echo $2|sed -e 's/(/((/' -e 's/)/) 0&/' -e 's/,/) 0& (/g'` + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $as_decl_name is declared" >&5 +$as_echo_n "checking whether $as_decl_name is declared... " >&6; } +if eval \${$3+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$4 +int +main () +{ +#ifndef $as_decl_name +#ifdef __cplusplus + (void) $as_decl_use; +#else + (void) $as_decl_name; +#endif +#endif + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + eval "$3=yes" +else + eval "$3=no" +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +eval ac_res=\$$3 + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 +$as_echo "$ac_res" >&6; } + eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno + +} # ac_fn_c_check_decl + +# ac_fn_c_check_member LINENO AGGR MEMBER VAR INCLUDES +# ---------------------------------------------------- +# Tries to find if the field MEMBER exists in type AGGR, after including +# INCLUDES, setting cache variable VAR accordingly. +ac_fn_c_check_member () +{ + as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2.$3" >&5 +$as_echo_n "checking for $2.$3... 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Invocation command line was + + $ $0 $@ + +_ACEOF +exec 5>>config.log +{ +cat <<_ASUNAME +## --------- ## +## Platform. ## +## --------- ## + +hostname = `(hostname || uname -n) 2>/dev/null | sed 1q` +uname -m = `(uname -m) 2>/dev/null || echo unknown` +uname -r = `(uname -r) 2>/dev/null || echo unknown` +uname -s = `(uname -s) 2>/dev/null || echo unknown` +uname -v = `(uname -v) 2>/dev/null || echo unknown` + +/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null || echo unknown` +/bin/uname -X = `(/bin/uname -X) 2>/dev/null || echo unknown` + +/bin/arch = `(/bin/arch) 2>/dev/null || echo unknown` +/usr/bin/arch -k = `(/usr/bin/arch -k) 2>/dev/null || echo unknown` +/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null || echo unknown` +/usr/bin/hostinfo = `(/usr/bin/hostinfo) 2>/dev/null || echo unknown` +/bin/machine = `(/bin/machine) 2>/dev/null || echo unknown` +/usr/bin/oslevel = `(/usr/bin/oslevel) 2>/dev/null || echo unknown` +/bin/universe = `(/bin/universe) 2>/dev/null || echo unknown` + +_ASUNAME + +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + $as_echo "PATH: $as_dir" + done +IFS=$as_save_IFS + +} >&5 + +cat >&5 <<_ACEOF + + +## ----------- ## +## Core tests. ## +## ----------- ## + +_ACEOF + + +# Keep a trace of the command line. +# Strip out --no-create and --no-recursion so they do not pile up. +# Strip out --silent because we don't want to record it for future runs. +# Also quote any args containing shell meta-characters. +# Make two passes to allow for proper duplicate-argument suppression. +ac_configure_args= +ac_configure_args0= +ac_configure_args1= +ac_must_keep_next=false +for ac_pass in 1 2 +do + for ac_arg + do + case $ac_arg in + -no-create | --no-c* | -n | -no-recursion | --no-r*) continue ;; + -q | -quiet | --quiet | --quie | --qui | --qu | --q \ + | -silent | --silent | --silen | --sile | --sil) + continue ;; + *\'*) + ac_arg=`$as_echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;; + esac + case $ac_pass in + 1) as_fn_append ac_configure_args0 " '$ac_arg'" ;; + 2) + as_fn_append ac_configure_args1 " '$ac_arg'" + if test $ac_must_keep_next = true; then + ac_must_keep_next=false # Got value, back to normal. + else + case $ac_arg in + *=* | --config-cache | -C | -disable-* | --disable-* \ + | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \ + | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \ + | -with-* | --with-* | -without-* | --without-* | --x) + case "$ac_configure_args0 " in + "$ac_configure_args1"*" '$ac_arg' "* ) continue ;; + esac + ;; + -* ) ac_must_keep_next=true ;; + esac + fi + as_fn_append ac_configure_args " '$ac_arg'" + ;; + esac + done +done +{ ac_configure_args0=; unset ac_configure_args0;} +{ ac_configure_args1=; unset ac_configure_args1;} + +# When interrupted or exit'd, cleanup temporary files, and complete +# config.log. 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"cannot find install-sh, install.sh, or shtool in \"$srcdir\" \"$srcdir/..\" \"$srcdir/../..\"" "$LINENO" 5 +fi + +# These three variables are undocumented and unsupported, +# and are intended to be withdrawn in a future Autoconf release. +# They can cause serious problems if a builder's source tree is in a directory +# whose full name contains unusual characters. +ac_config_guess="$SHELL $ac_aux_dir/config.guess" # Please don't use this var. +ac_config_sub="$SHELL $ac_aux_dir/config.sub" # Please don't use this var. +ac_configure="$SHELL $ac_aux_dir/configure" # Please don't use this var. + + +# Expand $ac_aux_dir to an absolute path. +am_aux_dir=`cd "$ac_aux_dir" && pwd` + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args. +set dummy ${ac_tool_prefix}gcc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="${ac_tool_prefix}gcc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_CC"; then + ac_ct_CC=$CC + # Extract the first word of "gcc", so it can be a program name with args. +set dummy gcc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_CC"; then + ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_CC="gcc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_CC=$ac_cv_prog_ac_ct_CC +if test -n "$ac_ct_CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5 +$as_echo "$ac_ct_CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_CC" = x; then + CC="" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + CC=$ac_ct_CC + fi +else + CC="$ac_cv_prog_CC" +fi + +if test -z "$CC"; then + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args. +set dummy ${ac_tool_prefix}cc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="${ac_tool_prefix}cc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + fi +fi +if test -z "$CC"; then + # Extract the first word of "cc", so it can be a program name with args. +set dummy cc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else + ac_prog_rejected=no +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then + ac_prog_rejected=yes + continue + fi + ac_cv_prog_CC="cc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +if test $ac_prog_rejected = yes; then + # We found a bogon in the path, so make sure we never use it. + set dummy $ac_cv_prog_CC + shift + if test $# != 0; then + # We chose a different compiler from the bogus one. + # However, it has the same basename, so the bogon will be chosen + # first if we set CC to just the basename; use the full file name. + shift + ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@" + fi +fi +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$CC"; then + if test -n "$ac_tool_prefix"; then + for ac_prog in cl.exe + do + # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. +set dummy $ac_tool_prefix$ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="$ac_tool_prefix$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$CC" && break + done +fi +if test -z "$CC"; then + ac_ct_CC=$CC + for ac_prog in cl.exe +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_CC"; then + ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_CC="$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_CC=$ac_cv_prog_ac_ct_CC +if test -n "$ac_ct_CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5 +$as_echo "$ac_ct_CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$ac_ct_CC" && break +done + + if test "x$ac_ct_CC" = x; then + CC="" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + CC=$ac_ct_CC + fi +fi + +fi + + +test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "no acceptable C compiler found in \$PATH +See \`config.log' for more details" "$LINENO" 5; } + +# Provide some information about the compiler. +$as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5 +set X $ac_compile +ac_compiler=$2 +for ac_option in --version -v -V -qversion; do + { { ac_try="$ac_compiler $ac_option >&5" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_compiler $ac_option >&5") 2>conftest.err + ac_status=$? + if test -s conftest.err; then + sed '10a\ +... rest of stderr output deleted ... + 10q' conftest.err >conftest.er1 + cat conftest.er1 >&5 + fi + rm -f conftest.er1 conftest.err + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } +done + +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +ac_clean_files_save=$ac_clean_files +ac_clean_files="$ac_clean_files a.out a.out.dSYM a.exe b.out" +# Try to create an executable without -o first, disregard a.out. +# It will help us diagnose broken compilers, and finding out an intuition +# of exeext. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5 +$as_echo_n "checking whether the C compiler works... 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We should not override ac_cv_exeext if it was cached, +# so that the user can short-circuit this test for compilers unknown to +# Autoconf. +for ac_file in $ac_files '' +do + test -f "$ac_file" || continue + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) + ;; + [ab].out ) + # We found the default executable, but exeext='' is most + # certainly right. + break;; + *.* ) + if test "${ac_cv_exeext+set}" = set && test "$ac_cv_exeext" != no; + then :; else + ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'` + fi + # We set ac_cv_exeext here because the later test for it is not + # safe: cross compilers may not add the suffix if given an `-o' + # argument, so we may need to know it at that point already. + # Even if this section looks crufty: it has the advantage of + # actually working. + break;; + * ) + break;; + esac +done +test "$ac_cv_exeext" = no && ac_cv_exeext= + +else + ac_file='' +fi +if test -z "$ac_file"; then : + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +$as_echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error 77 "C compiler cannot create executables +See \`config.log' for more details" "$LINENO" 5; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5 +$as_echo_n "checking for C compiler default output file name... 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For instance with Cygwin, `ls conftest' will +# work properly (i.e., refer to `conftest.exe'), while it won't with +# `rm'. +for ac_file in conftest.exe conftest conftest.*; do + test -f "$ac_file" || continue + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;; + *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'` + break;; + * ) break;; + esac +done +else + { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "cannot compute suffix of executables: cannot compile and link +See \`config.log' for more details" "$LINENO" 5; } +fi +rm -f conftest conftest$ac_cv_exeext +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5 +$as_echo "$ac_cv_exeext" >&6; } + +rm -f conftest.$ac_ext +EXEEXT=$ac_cv_exeext +ac_exeext=$EXEEXT +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +int +main () +{ +FILE *f = fopen ("conftest.out", "w"); + return ferror (f) || fclose (f) != 0; + + ; + return 0; +} +_ACEOF +ac_clean_files="$ac_clean_files conftest.out" +# Check that the compiler produces executables we can run. If not, either +# the compiler is broken, or we cross compile. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5 +$as_echo_n "checking whether we are cross compiling... " >&6; } +if test "$cross_compiling" != yes; then + { { ac_try="$ac_link" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_link") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + if { ac_try='./conftest$ac_cv_exeext' + { { case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_try") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; }; then + cross_compiling=no + else + if test "$cross_compiling" = maybe; then + cross_compiling=yes + else + { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "cannot run C compiled programs. +If you meant to cross compile, use \`--host'. +See \`config.log' for more details" "$LINENO" 5; } + fi + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5 +$as_echo "$cross_compiling" >&6; } + +rm -f conftest.$ac_ext conftest$ac_cv_exeext conftest.out +ac_clean_files=$ac_clean_files_save +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5 +$as_echo_n "checking for suffix of object files... " >&6; } +if ${ac_cv_objext+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +rm -f conftest.o conftest.obj +if { { ac_try="$ac_compile" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_compile") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then : + for ac_file in conftest.o conftest.obj conftest.*; do + test -f "$ac_file" || continue; + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM ) ;; + *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'` + break;; + esac +done +else + $as_echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "cannot compute suffix of object files: cannot compile +See \`config.log' for more details" "$LINENO" 5; } +fi +rm -f conftest.$ac_cv_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5 +$as_echo "$ac_cv_objext" >&6; } +OBJEXT=$ac_cv_objext +ac_objext=$OBJEXT +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5 +$as_echo_n "checking whether we are using the GNU C compiler... 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" >&6; } +if ${ac_cv_prog_cc_c89+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_cv_prog_cc_c89=no +ac_save_CC=$CC +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +#include +struct stat; +/* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */ +struct buf { int x; }; +FILE * (*rcsopen) (struct buf *, struct stat *, int); +static char *e (p, i) + char **p; + int i; +{ + return p[i]; +} +static char *f (char * (*g) (char **, int), char **p, ...) +{ + char *s; + va_list v; + va_start (v,p); + s = g (p, va_arg (v,int)); + va_end (v); + return s; +} + +/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default. It has + function prototypes and stuff, but not '\xHH' hex character constants. + These don't provoke an error unfortunately, instead are silently treated + as 'x'. The following induces an error, until -std is added to get + proper ANSI mode. Curiously '\x00'!='x' always comes out true, for an + array size at least. It's necessary to write '\x00'==0 to get something + that's true only with -std. */ +int osf4_cc_array ['\x00' == 0 ? 1 : -1]; + +/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters + inside strings and character constants. */ +#define FOO(x) 'x' +int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1]; + +int test (int i, double x); +struct s1 {int (*f) (int a);}; +struct s2 {int (*f) (double a);}; +int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int); +int argc; +char **argv; +int +main () +{ +return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]; + ; + return 0; +} +_ACEOF +for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \ + -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__" +do + CC="$ac_save_CC $ac_arg" + if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_prog_cc_c89=$ac_arg +fi +rm -f core conftest.err conftest.$ac_objext + test "x$ac_cv_prog_cc_c89" != "xno" && break +done +rm -f conftest.$ac_ext +CC=$ac_save_CC + +fi +# AC_CACHE_VAL +case "x$ac_cv_prog_cc_c89" in + x) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5 +$as_echo "none needed" >&6; } ;; + xno) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5 +$as_echo "unsupported" >&6; } ;; + *) + CC="$CC $ac_cv_prog_cc_c89" + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5 +$as_echo "$ac_cv_prog_cc_c89" >&6; } ;; +esac +if test "x$ac_cv_prog_cc_c89" != xno; then : + +fi + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC understands -c and -o together" >&5 +$as_echo_n "checking whether $CC understands -c and -o together... " >&6; } +if ${am_cv_prog_cc_c_o+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF + # Make sure it works both with $CC and with simple cc. + # Following AC_PROG_CC_C_O, we do the test twice because some + # compilers refuse to overwrite an existing .o file with -o, + # though they will create one. + am_cv_prog_cc_c_o=yes + for am_i in 1 2; do + if { echo "$as_me:$LINENO: $CC -c conftest.$ac_ext -o conftest2.$ac_objext" >&5 + ($CC -c conftest.$ac_ext -o conftest2.$ac_objext) >&5 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } \ + && test -f conftest2.$ac_objext; then + : OK + else + am_cv_prog_cc_c_o=no + break + fi + done + rm -f core conftest* + unset am_i +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_prog_cc_c_o" >&5 +$as_echo "$am_cv_prog_cc_c_o" >&6; } +if test "$am_cv_prog_cc_c_o" != yes; then + # Losing compiler, so override with the script. + # FIXME: It is wrong to rewrite CC. + # But if we don't then we get into trouble of one sort or another. + # A longer-term fix would be to have automake use am__CC in this case, + # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)" + CC="$am_aux_dir/compile $CC" +fi +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5 +$as_echo_n "checking how to run the C preprocessor... " >&6; } +# On Suns, sometimes $CPP names a directory. +if test -n "$CPP" && test -d "$CPP"; then + CPP= +fi +if test -z "$CPP"; then + if ${ac_cv_prog_CPP+:} false; then : + $as_echo_n "(cached) " >&6 +else + # Double quotes because CPP needs to be expanded + for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp" + do + ac_preproc_ok=false +for ac_c_preproc_warn_flag in '' yes +do + # Use a header file that comes with gcc, so configuring glibc + # with a fresh cross-compiler works. + # Prefer to if __STDC__ is defined, since + # exists even on freestanding compilers. + # On the NeXT, cc -E runs the code through the compiler's parser, + # not just through cpp. "Syntax error" is here to catch this case. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#ifdef __STDC__ +# include +#else +# include +#endif + Syntax error +_ACEOF +if ac_fn_c_try_cpp "$LINENO"; then : + +else + # Broken: fails on valid input. +continue +fi +rm -f conftest.err conftest.i conftest.$ac_ext + + # OK, works on sane cases. Now check whether nonexistent headers + # can be detected and how. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +_ACEOF +if ac_fn_c_try_cpp "$LINENO"; then : + # Broken: success on invalid input. +continue +else + # Passes both tests. +ac_preproc_ok=: +break +fi +rm -f conftest.err conftest.i conftest.$ac_ext + +done +# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped. +rm -f conftest.i conftest.err conftest.$ac_ext +if $ac_preproc_ok; then : + break +fi + + done + ac_cv_prog_CPP=$CPP + +fi + CPP=$ac_cv_prog_CPP +else + ac_cv_prog_CPP=$CPP +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5 +$as_echo "$CPP" >&6; } +ac_preproc_ok=false +for ac_c_preproc_warn_flag in '' yes +do + # Use a header file that comes with gcc, so configuring glibc + # with a fresh cross-compiler works. + # Prefer to if __STDC__ is defined, since + # exists even on freestanding compilers. + # On the NeXT, cc -E runs the code through the compiler's parser, + # not just through cpp. "Syntax error" is here to catch this case. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#ifdef __STDC__ +# include +#else +# include +#endif + Syntax error +_ACEOF +if ac_fn_c_try_cpp "$LINENO"; then : + +else + # Broken: fails on valid input. +continue +fi +rm -f conftest.err conftest.i conftest.$ac_ext + + # OK, works on sane cases. Now check whether nonexistent headers + # can be detected and how. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +_ACEOF +if ac_fn_c_try_cpp "$LINENO"; then : + # Broken: success on invalid input. +continue +else + # Passes both tests. +ac_preproc_ok=: +break +fi +rm -f conftest.err conftest.i conftest.$ac_ext + +done +# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped. +rm -f conftest.i conftest.err conftest.$ac_ext +if $ac_preproc_ok; then : + +else + { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "C preprocessor \"$CPP\" fails sanity check +See \`config.log' for more details" "$LINENO" 5; } +fi + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5 +$as_echo_n "checking for grep that handles long lines and -e... " >&6; } +if ${ac_cv_path_GREP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -z "$GREP"; then + ac_path_GREP_found=false + # Loop through the user's path and test for each of PROGNAME-LIST + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_prog in grep ggrep; do + for ac_exec_ext in '' $ac_executable_extensions; do + ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext" + as_fn_executable_p "$ac_path_GREP" || continue +# Check for GNU ac_path_GREP and select it if it is found. + # Check for GNU $ac_path_GREP +case `"$ac_path_GREP" --version 2>&1` in +*GNU*) + ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;; +*) + ac_count=0 + $as_echo_n 0123456789 >"conftest.in" + while : + do + cat "conftest.in" "conftest.in" >"conftest.tmp" + mv "conftest.tmp" "conftest.in" + cp "conftest.in" "conftest.nl" + $as_echo 'GREP' >> "conftest.nl" + "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break + diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break + as_fn_arith $ac_count + 1 && ac_count=$as_val + if test $ac_count -gt ${ac_path_GREP_max-0}; then + # Best one so far, save it but keep looking for a better one + ac_cv_path_GREP="$ac_path_GREP" + ac_path_GREP_max=$ac_count + fi + # 10*(2^10) chars as input seems more than enough + test $ac_count -gt 10 && break + done + rm -f conftest.in conftest.tmp conftest.nl conftest.out;; +esac + + $ac_path_GREP_found && break 3 + done + done + done +IFS=$as_save_IFS + if test -z "$ac_cv_path_GREP"; then + as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5 + fi +else + ac_cv_path_GREP=$GREP +fi + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5 +$as_echo "$ac_cv_path_GREP" >&6; } + GREP="$ac_cv_path_GREP" + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5 +$as_echo_n "checking for egrep... " >&6; } +if ${ac_cv_path_EGREP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if echo a | $GREP -E '(a|b)' >/dev/null 2>&1 + then ac_cv_path_EGREP="$GREP -E" + else + if test -z "$EGREP"; then + ac_path_EGREP_found=false + # Loop through the user's path and test for each of PROGNAME-LIST + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_prog in egrep; do + for ac_exec_ext in '' $ac_executable_extensions; do + ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext" + as_fn_executable_p "$ac_path_EGREP" || continue +# Check for GNU ac_path_EGREP and select it if it is found. + # Check for GNU $ac_path_EGREP +case `"$ac_path_EGREP" --version 2>&1` in +*GNU*) + ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;; +*) + ac_count=0 + $as_echo_n 0123456789 >"conftest.in" + while : + do + cat "conftest.in" "conftest.in" >"conftest.tmp" + mv "conftest.tmp" "conftest.in" + cp "conftest.in" "conftest.nl" + $as_echo 'EGREP' >> "conftest.nl" + "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break + diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break + as_fn_arith $ac_count + 1 && ac_count=$as_val + if test $ac_count -gt ${ac_path_EGREP_max-0}; then + # Best one so far, save it but keep looking for a better one + ac_cv_path_EGREP="$ac_path_EGREP" + ac_path_EGREP_max=$ac_count + fi + # 10*(2^10) chars as input seems more than enough + test $ac_count -gt 10 && break + done + rm -f conftest.in conftest.tmp conftest.nl conftest.out;; +esac + + $ac_path_EGREP_found && break 3 + done + done + done +IFS=$as_save_IFS + if test -z "$ac_cv_path_EGREP"; then + as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5 + fi +else + ac_cv_path_EGREP=$EGREP +fi + + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5 +$as_echo "$ac_cv_path_EGREP" >&6; } + EGREP="$ac_cv_path_EGREP" + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5 +$as_echo_n "checking for ANSI C header files... " >&6; } +if ${ac_cv_header_stdc+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +#include +#include +#include + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_header_stdc=yes +else + ac_cv_header_stdc=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + +if test $ac_cv_header_stdc = yes; then + # SunOS 4.x string.h does not declare mem*, contrary to ANSI. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "memchr" >/dev/null 2>&1; then : + +else + ac_cv_header_stdc=no +fi +rm -f conftest* + +fi + +if test $ac_cv_header_stdc = yes; then + # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "free" >/dev/null 2>&1; then : + +else + ac_cv_header_stdc=no +fi +rm -f conftest* + +fi + +if test $ac_cv_header_stdc = yes; then + # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi. + if test "$cross_compiling" = yes; then : + : +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +#include +#if ((' ' & 0x0FF) == 0x020) +# define ISLOWER(c) ('a' <= (c) && (c) <= 'z') +# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c)) +#else +# define ISLOWER(c) \ + (('a' <= (c) && (c) <= 'i') \ + || ('j' <= (c) && (c) <= 'r') \ + || ('s' <= (c) && (c) <= 'z')) +# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c)) +#endif + +#define XOR(e, f) (((e) && !(f)) || (!(e) && (f))) +int +main () +{ + int i; + for (i = 0; i < 256; i++) + if (XOR (islower (i), ISLOWER (i)) + || toupper (i) != TOUPPER (i)) + return 2; + return 0; +} +_ACEOF +if ac_fn_c_try_run "$LINENO"; then : + +else + ac_cv_header_stdc=no +fi +rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ + conftest.$ac_objext conftest.beam conftest.$ac_ext +fi + +fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5 +$as_echo "$ac_cv_header_stdc" >&6; } +if test $ac_cv_header_stdc = yes; then + +$as_echo "#define STDC_HEADERS 1" >>confdefs.h + +fi + +# On IRIX 5.3, sys/types and inttypes.h are conflicting. +for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \ + inttypes.h stdint.h unistd.h +do : + as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh` +ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default +" +if eval test \"x\$"$as_ac_Header"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1 +_ACEOF + +fi + +done + + + + ac_fn_c_check_header_mongrel "$LINENO" "minix/config.h" "ac_cv_header_minix_config_h" "$ac_includes_default" +if test "x$ac_cv_header_minix_config_h" = xyes; then : + MINIX=yes +else + MINIX= +fi + + + if test "$MINIX" = yes; then + +$as_echo "#define _POSIX_SOURCE 1" >>confdefs.h + + +$as_echo "#define _POSIX_1_SOURCE 2" >>confdefs.h + + +$as_echo "#define _MINIX 1" >>confdefs.h + + fi + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether it is safe to define __EXTENSIONS__" >&5 +$as_echo_n "checking whether it is safe to define __EXTENSIONS__... " >&6; } +if ${ac_cv_safe_to_define___extensions__+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +# define __EXTENSIONS__ 1 + $ac_includes_default +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_safe_to_define___extensions__=yes +else + ac_cv_safe_to_define___extensions__=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_safe_to_define___extensions__" >&5 +$as_echo "$ac_cv_safe_to_define___extensions__" >&6; } + test $ac_cv_safe_to_define___extensions__ = yes && + $as_echo "#define __EXTENSIONS__ 1" >>confdefs.h + + $as_echo "#define _ALL_SOURCE 1" >>confdefs.h + + $as_echo "#define _GNU_SOURCE 1" >>confdefs.h + + $as_echo "#define _POSIX_PTHREAD_SEMANTICS 1" >>confdefs.h + + $as_echo "#define _TANDEM_SOURCE 1" >>confdefs.h + + + +am__api_version='1.16' + +# Find a good install program. We prefer a C program (faster), +# so one script is as good as another. But avoid the broken or +# incompatible versions: +# SysV /etc/install, /usr/sbin/install +# SunOS /usr/etc/install +# IRIX /sbin/install +# AIX /bin/install +# AmigaOS /C/install, which installs bootblocks on floppy discs +# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag +# AFS /usr/afsws/bin/install, which mishandles nonexistent args +# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff" +# OS/2's system install, which has a completely different semantic +# ./install, which can be erroneously created by make from ./install.sh. +# Reject install programs that cannot install multiple files. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a BSD-compatible install" >&5 +$as_echo_n "checking for a BSD-compatible install... " >&6; } +if test -z "$INSTALL"; then +if ${ac_cv_path_install+:} false; then : + $as_echo_n "(cached) " >&6 +else + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + # Account for people who put trailing slashes in PATH elements. +case $as_dir/ in #(( + ./ | .// | /[cC]/* | \ + /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \ + ?:[\\/]os2[\\/]install[\\/]* | ?:[\\/]OS2[\\/]INSTALL[\\/]* | \ + /usr/ucb/* ) ;; + *) + # OSF1 and SCO ODT 3.0 have their own names for install. + # Don't use installbsd from OSF since it installs stuff as root + # by default. + for ac_prog in ginstall scoinst install; do + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext"; then + if test $ac_prog = install && + grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then + # AIX install. It has an incompatible calling convention. + : + elif test $ac_prog = install && + grep pwplus "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then + # program-specific install script used by HP pwplus--don't use. + : + else + rm -rf conftest.one conftest.two conftest.dir + echo one > conftest.one + echo two > conftest.two + mkdir conftest.dir + if "$as_dir/$ac_prog$ac_exec_ext" -c conftest.one conftest.two "`pwd`/conftest.dir" && + test -s conftest.one && test -s conftest.two && + test -s conftest.dir/conftest.one && + test -s conftest.dir/conftest.two + then + ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c" + break 3 + fi + fi + fi + done + done + ;; +esac + + done +IFS=$as_save_IFS + +rm -rf conftest.one conftest.two conftest.dir + +fi + if test "${ac_cv_path_install+set}" = set; then + INSTALL=$ac_cv_path_install + else + # As a last resort, use the slow shell script. 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This can happen + # if, for instance, CONFIG_SHELL is bash and it inherits a + # broken ls alias from the environment. This has actually + # happened. Such a system could not be considered "sane". + as_fn_error $? "ls -t appears to fail. Make sure there is not a broken + alias in your environment" "$LINENO" 5 + fi + if test "$2" = conftest.file || test $am_try -eq 2; then + break + fi + # Just in case. + sleep 1 + am_has_slept=yes + done + test "$2" = conftest.file + ) +then + # Ok. + : +else + as_fn_error $? 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However 'strip' might not be the right +# tool to use in cross-compilation environments, therefore Automake +# will honor the 'STRIP' environment variable to overrule this program. +if test "$cross_compiling" != no; then + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args. +set dummy ${ac_tool_prefix}strip; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... 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Don't cache a + # value for MKDIR_P within a source directory, because that will + # break other packages using the cache if that directory is + # removed, or if the value is a relative name. + MKDIR_P="$ac_install_sh -d" + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $MKDIR_P" >&5 +$as_echo "$MKDIR_P" >&6; } + +for ac_prog in gawk mawk nawk awk +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... 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"no acceptable fgrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5 + fi +else + ac_cv_path_FGREP=$FGREP +fi + + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_FGREP" >&5 +$as_echo "$ac_cv_path_FGREP" >&6; } + FGREP="$ac_cv_path_FGREP" + + +test -z "$GREP" && GREP=grep + + + + + + + + + + + + + + + + + + + +# Check whether --with-gnu-ld was given. +if test "${with_gnu_ld+set}" = set; then : + withval=$with_gnu_ld; test no = "$withval" || with_gnu_ld=yes +else + with_gnu_ld=no +fi + +ac_prog=ld +if test yes = "$GCC"; then + # Check if gcc -print-prog-name=ld gives a path. + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld used by $CC" >&5 +$as_echo_n "checking for ld used by $CC... 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" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for non-GNU ld" >&5 +$as_echo_n "checking for non-GNU ld... " >&6; } +fi +if ${lt_cv_path_LD+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -z "$LD"; then + lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR + for ac_dir in $PATH; do + IFS=$lt_save_ifs + test -z "$ac_dir" && ac_dir=. + if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then + lt_cv_path_LD=$ac_dir/$ac_prog + # Check to see if the program is GNU ld. I'd rather use --version, + # but apparently some variants of GNU ld only accept -v. + # Break only if it was the GNU/non-GNU ld that we prefer. + case `"$lt_cv_path_LD" -v 2>&1 &5 +$as_echo "$LD" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi +test -z "$LD" && as_fn_error $? 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" >&6; } +if ${lt_cv_path_NM+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$NM"; then + # Let the user override the test. + lt_cv_path_NM=$NM +else + lt_nm_to_check=${ac_tool_prefix}nm + if test -n "$ac_tool_prefix" && test "$build" = "$host"; then + lt_nm_to_check="$lt_nm_to_check nm" + fi + for lt_tmp_nm in $lt_nm_to_check; do + lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR + for ac_dir in $PATH /usr/ccs/bin/elf /usr/ccs/bin /usr/ucb /bin; do + IFS=$lt_save_ifs + test -z "$ac_dir" && ac_dir=. + tmp_nm=$ac_dir/$lt_tmp_nm + if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext"; then + # Check to see if the nm accepts a BSD-compat flag. + # Adding the 'sed 1q' prevents false positives on HP-UX, which says: + # nm: unknown option "B" ignored + # Tru64's nm complains that /dev/null is an invalid object file + # MSYS converts /dev/null to NUL, MinGW nm treats NUL as empty + case $build_os in + mingw*) lt_bad_file=conftest.nm/nofile ;; + *) lt_bad_file=/dev/null ;; + esac + case `"$tmp_nm" -B $lt_bad_file 2>&1 | sed '1q'` in + *$lt_bad_file* | *'Invalid file or object type'*) + lt_cv_path_NM="$tmp_nm -B" + break 2 + ;; + *) + case `"$tmp_nm" -p /dev/null 2>&1 | sed '1q'` in + */dev/null*) + lt_cv_path_NM="$tmp_nm -p" + break 2 + ;; + *) + lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but + continue # so that we can try to find one that supports BSD flags + ;; + esac + ;; + esac + fi + done + IFS=$lt_save_ifs + done + : ${lt_cv_path_NM=no} +fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_NM" >&5 +$as_echo "$lt_cv_path_NM" >&6; } +if test no != "$lt_cv_path_NM"; then + NM=$lt_cv_path_NM +else + # Didn't find any BSD compatible name lister, look for dumpbin. + if test -n "$DUMPBIN"; then : + # Let the user override the test. + else + if test -n "$ac_tool_prefix"; then + for ac_prog in dumpbin "link -dump" + do + # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. +set dummy $ac_tool_prefix$ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_DUMPBIN+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$DUMPBIN"; then + ac_cv_prog_DUMPBIN="$DUMPBIN" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_DUMPBIN="$ac_tool_prefix$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +DUMPBIN=$ac_cv_prog_DUMPBIN +if test -n "$DUMPBIN"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DUMPBIN" >&5 +$as_echo "$DUMPBIN" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$DUMPBIN" && break + done +fi +if test -z "$DUMPBIN"; then + ac_ct_DUMPBIN=$DUMPBIN + for ac_prog in dumpbin "link -dump" +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_DUMPBIN+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_DUMPBIN"; then + ac_cv_prog_ac_ct_DUMPBIN="$ac_ct_DUMPBIN" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_DUMPBIN="$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_DUMPBIN=$ac_cv_prog_ac_ct_DUMPBIN +if test -n "$ac_ct_DUMPBIN"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DUMPBIN" >&5 +$as_echo "$ac_ct_DUMPBIN" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$ac_ct_DUMPBIN" && break +done + + if test "x$ac_ct_DUMPBIN" = x; then + DUMPBIN=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + DUMPBIN=$ac_ct_DUMPBIN + fi +fi + + case `$DUMPBIN -symbols -headers /dev/null 2>&1 | sed '1q'` in + *COFF*) + DUMPBIN="$DUMPBIN -symbols -headers" + ;; + *) + DUMPBIN=: + ;; + esac + fi + + if test : != "$DUMPBIN"; then + NM=$DUMPBIN + fi +fi +test -z "$NM" && NM=nm + + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking the name lister ($NM) interface" >&5 +$as_echo_n "checking the name lister ($NM) interface... " >&6; } +if ${lt_cv_nm_interface+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_nm_interface="BSD nm" + echo "int some_variable = 0;" > conftest.$ac_ext + (eval echo "\"\$as_me:$LINENO: $ac_compile\"" >&5) + (eval "$ac_compile" 2>conftest.err) + cat conftest.err >&5 + (eval echo "\"\$as_me:$LINENO: $NM \\\"conftest.$ac_objext\\\"\"" >&5) + (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out) + cat conftest.err >&5 + (eval echo "\"\$as_me:$LINENO: output\"" >&5) + cat conftest.out >&5 + if $GREP 'External.*some_variable' conftest.out > /dev/null; then + lt_cv_nm_interface="MS dumpbin" + fi + rm -f conftest* +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_nm_interface" >&5 +$as_echo "$lt_cv_nm_interface" >&6; } + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ln -s works" >&5 +$as_echo_n "checking whether ln -s works... " >&6; } +LN_S=$as_ln_s +if test "$LN_S" = "ln -s"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no, using $LN_S" >&5 +$as_echo "no, using $LN_S" >&6; } +fi + +# find the maximum length of command line arguments +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking the maximum length of command line arguments" >&5 +$as_echo_n "checking the maximum length of command line arguments... " >&6; } +if ${lt_cv_sys_max_cmd_len+:} false; then : + $as_echo_n "(cached) " >&6 +else + i=0 + teststring=ABCD + + case $build_os in + msdosdjgpp*) + # On DJGPP, this test can blow up pretty badly due to problems in libc + # (any single argument exceeding 2000 bytes causes a buffer overrun + # during glob expansion). Even if it were fixed, the result of this + # check would be larger than it should be. + lt_cv_sys_max_cmd_len=12288; # 12K is about right + ;; + + gnu*) + # Under GNU Hurd, this test is not required because there is + # no limit to the length of command line arguments. + # Libtool will interpret -1 as no limit whatsoever + lt_cv_sys_max_cmd_len=-1; + ;; + + cygwin* | mingw* | cegcc*) + # On Win9x/ME, this test blows up -- it succeeds, but takes + # about 5 minutes as the teststring grows exponentially. + # Worse, since 9x/ME are not pre-emptively multitasking, + # you end up with a "frozen" computer, even though with patience + # the test eventually succeeds (with a max line length of 256k). + # Instead, let's just punt: use the minimum linelength reported by + # all of the supported platforms: 8192 (on NT/2K/XP). + lt_cv_sys_max_cmd_len=8192; + ;; + + mint*) + # On MiNT this can take a long time and run out of memory. + lt_cv_sys_max_cmd_len=8192; + ;; + + amigaos*) + # On AmigaOS with pdksh, this test takes hours, literally. + # So we just punt and use a minimum line length of 8192. + lt_cv_sys_max_cmd_len=8192; + ;; + + bitrig* | darwin* | dragonfly* | freebsd* | netbsd* | openbsd*) + # This has been around since 386BSD, at least. Likely further. + if test -x /sbin/sysctl; then + lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax` + elif test -x /usr/sbin/sysctl; then + lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax` + else + lt_cv_sys_max_cmd_len=65536 # usable default for all BSDs + fi + # And add a safety zone + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4` + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3` + ;; + + interix*) + # We know the value 262144 and hardcode it with a safety zone (like BSD) + lt_cv_sys_max_cmd_len=196608 + ;; + + os2*) + # The test takes a long time on OS/2. + lt_cv_sys_max_cmd_len=8192 + ;; + + osf*) + # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure + # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not + # nice to cause kernel panics so lets avoid the loop below. + # First set a reasonable default. + lt_cv_sys_max_cmd_len=16384 + # + if test -x /sbin/sysconfig; then + case `/sbin/sysconfig -q proc exec_disable_arg_limit` in + *1*) lt_cv_sys_max_cmd_len=-1 ;; + esac + fi + ;; + sco3.2v5*) + lt_cv_sys_max_cmd_len=102400 + ;; + sysv5* | sco5v6* | sysv4.2uw2*) + kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null` + if test -n "$kargmax"; then + lt_cv_sys_max_cmd_len=`echo $kargmax | sed 's/.*[ ]//'` + else + lt_cv_sys_max_cmd_len=32768 + fi + ;; + *) + lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null` + if test -n "$lt_cv_sys_max_cmd_len" && \ + test undefined != "$lt_cv_sys_max_cmd_len"; then + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4` + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3` + else + # Make teststring a little bigger before we do anything with it. + # a 1K string should be a reasonable start. + for i in 1 2 3 4 5 6 7 8; do + teststring=$teststring$teststring + done + SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}} + # If test is not a shell built-in, we'll probably end up computing a + # maximum length that is only half of the actual maximum length, but + # we can't tell. + while { test X`env echo "$teststring$teststring" 2>/dev/null` \ + = "X$teststring$teststring"; } >/dev/null 2>&1 && + test 17 != "$i" # 1/2 MB should be enough + do + i=`expr $i + 1` + teststring=$teststring$teststring + done + # Only check the string length outside the loop. + lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1` + teststring= + # Add a significant safety factor because C++ compilers can tack on + # massive amounts of additional arguments before passing them to the + # linker. It appears as though 1/2 is a usable value. + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2` + fi + ;; + esac + +fi + +if test -n "$lt_cv_sys_max_cmd_len"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sys_max_cmd_len" >&5 +$as_echo "$lt_cv_sys_max_cmd_len" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: none" >&5 +$as_echo "none" >&6; } +fi +max_cmd_len=$lt_cv_sys_max_cmd_len + + + + + + +: ${CP="cp -f"} +: ${MV="mv -f"} +: ${RM="rm -f"} + +if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then + lt_unset=unset +else + lt_unset=false +fi + + + + + +# test EBCDIC or ASCII +case `echo X|tr X '\101'` in + A) # ASCII based system + # \n is not interpreted correctly by Solaris 8 /usr/ucb/tr + lt_SP2NL='tr \040 \012' + lt_NL2SP='tr \015\012 \040\040' + ;; + *) # EBCDIC based system + lt_SP2NL='tr \100 \n' + lt_NL2SP='tr \r\n \100\100' + ;; +esac + + + + + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to convert $build file names to $host format" >&5 +$as_echo_n "checking how to convert $build file names to $host format... " >&6; } +if ${lt_cv_to_host_file_cmd+:} false; then : + $as_echo_n "(cached) " >&6 +else + case $host in + *-*-mingw* ) + case $build in + *-*-mingw* ) # actually msys + lt_cv_to_host_file_cmd=func_convert_file_msys_to_w32 + ;; + *-*-cygwin* ) + lt_cv_to_host_file_cmd=func_convert_file_cygwin_to_w32 + ;; + * ) # otherwise, assume *nix + lt_cv_to_host_file_cmd=func_convert_file_nix_to_w32 + ;; + esac + ;; + *-*-cygwin* ) + case $build in + *-*-mingw* ) # actually msys + lt_cv_to_host_file_cmd=func_convert_file_msys_to_cygwin + ;; + *-*-cygwin* ) + lt_cv_to_host_file_cmd=func_convert_file_noop + ;; + * ) # otherwise, assume *nix + lt_cv_to_host_file_cmd=func_convert_file_nix_to_cygwin + ;; + esac + ;; + * ) # unhandled hosts (and "normal" native builds) + lt_cv_to_host_file_cmd=func_convert_file_noop + ;; +esac + +fi + +to_host_file_cmd=$lt_cv_to_host_file_cmd +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_to_host_file_cmd" >&5 +$as_echo "$lt_cv_to_host_file_cmd" >&6; } + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to convert $build file names to toolchain format" >&5 +$as_echo_n "checking how to convert $build file names to toolchain format... " >&6; } +if ${lt_cv_to_tool_file_cmd+:} false; then : + $as_echo_n "(cached) " >&6 +else + #assume ordinary cross tools, or native build. +lt_cv_to_tool_file_cmd=func_convert_file_noop +case $host in + *-*-mingw* ) + case $build in + *-*-mingw* ) # actually msys + lt_cv_to_tool_file_cmd=func_convert_file_msys_to_w32 + ;; + esac + ;; +esac + +fi + +to_tool_file_cmd=$lt_cv_to_tool_file_cmd +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_to_tool_file_cmd" >&5 +$as_echo "$lt_cv_to_tool_file_cmd" >&6; } + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $LD option to reload object files" >&5 +$as_echo_n "checking for $LD option to reload object files... " >&6; } +if ${lt_cv_ld_reload_flag+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_ld_reload_flag='-r' +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_reload_flag" >&5 +$as_echo "$lt_cv_ld_reload_flag" >&6; } +reload_flag=$lt_cv_ld_reload_flag +case $reload_flag in +"" | " "*) ;; +*) reload_flag=" $reload_flag" ;; +esac +reload_cmds='$LD$reload_flag -o $output$reload_objs' +case $host_os in + cygwin* | mingw* | pw32* | cegcc*) + if test yes != "$GCC"; then + reload_cmds=false + fi + ;; + darwin*) + if test yes = "$GCC"; then + reload_cmds='$LTCC $LTCFLAGS -nostdlib $wl-r -o $output$reload_objs' + else + reload_cmds='$LD$reload_flag -o $output$reload_objs' + fi + ;; +esac + + + + + + + + + +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}objdump", so it can be a program name with args. +set dummy ${ac_tool_prefix}objdump; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_OBJDUMP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$OBJDUMP"; then + ac_cv_prog_OBJDUMP="$OBJDUMP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_OBJDUMP="${ac_tool_prefix}objdump" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +OBJDUMP=$ac_cv_prog_OBJDUMP +if test -n "$OBJDUMP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OBJDUMP" >&5 +$as_echo "$OBJDUMP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_OBJDUMP"; then + ac_ct_OBJDUMP=$OBJDUMP + # Extract the first word of "objdump", so it can be a program name with args. +set dummy objdump; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_OBJDUMP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_OBJDUMP"; then + ac_cv_prog_ac_ct_OBJDUMP="$ac_ct_OBJDUMP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_OBJDUMP="objdump" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_OBJDUMP=$ac_cv_prog_ac_ct_OBJDUMP +if test -n "$ac_ct_OBJDUMP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJDUMP" >&5 +$as_echo "$ac_ct_OBJDUMP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_OBJDUMP" = x; then + OBJDUMP="false" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + OBJDUMP=$ac_ct_OBJDUMP + fi +else + OBJDUMP="$ac_cv_prog_OBJDUMP" +fi + +test -z "$OBJDUMP" && OBJDUMP=objdump + + + + + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to recognize dependent libraries" >&5 +$as_echo_n "checking how to recognize dependent libraries... " >&6; } +if ${lt_cv_deplibs_check_method+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_file_magic_cmd='$MAGIC_CMD' +lt_cv_file_magic_test_file= +lt_cv_deplibs_check_method='unknown' +# Need to set the preceding variable on all platforms that support +# interlibrary dependencies. +# 'none' -- dependencies not supported. +# 'unknown' -- same as none, but documents that we really don't know. +# 'pass_all' -- all dependencies passed with no checks. +# 'test_compile' -- check by making test program. +# 'file_magic [[regex]]' -- check by looking for files in library path +# that responds to the $file_magic_cmd with a given extended regex. +# If you have 'file' or equivalent on your system and you're not sure +# whether 'pass_all' will *always* work, you probably want this one. + +case $host_os in +aix[4-9]*) + lt_cv_deplibs_check_method=pass_all + ;; + +beos*) + lt_cv_deplibs_check_method=pass_all + ;; + +bsdi[45]*) + lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib)' + lt_cv_file_magic_cmd='/usr/bin/file -L' + lt_cv_file_magic_test_file=/shlib/libc.so + ;; + +cygwin*) + # func_win32_libid is a shell function defined in ltmain.sh + lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL' + lt_cv_file_magic_cmd='func_win32_libid' + ;; + +mingw* | pw32*) + # Base MSYS/MinGW do not provide the 'file' command needed by + # func_win32_libid shell function, so use a weaker test based on 'objdump', + # unless we find 'file', for example because we are cross-compiling. + if ( file / ) >/dev/null 2>&1; then + lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL' + lt_cv_file_magic_cmd='func_win32_libid' + else + # Keep this pattern in sync with the one in func_win32_libid. + lt_cv_deplibs_check_method='file_magic file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)' + lt_cv_file_magic_cmd='$OBJDUMP -f' + fi + ;; + +cegcc*) + # use the weaker test based on 'objdump'. See mingw*. + lt_cv_deplibs_check_method='file_magic file format pe-arm-.*little(.*architecture: arm)?' + lt_cv_file_magic_cmd='$OBJDUMP -f' + ;; + +darwin* | rhapsody*) + lt_cv_deplibs_check_method=pass_all + ;; + +freebsd* | dragonfly*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then + case $host_cpu in + i*86 ) + # Not sure whether the presence of OpenBSD here was a mistake. + # Let's accept both of them until this is cleared up. + lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD|DragonFly)/i[3-9]86 (compact )?demand paged shared library' + lt_cv_file_magic_cmd=/usr/bin/file + lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*` + ;; + esac + else + lt_cv_deplibs_check_method=pass_all + fi + ;; + +haiku*) + lt_cv_deplibs_check_method=pass_all + ;; + +hpux10.20* | hpux11*) + lt_cv_file_magic_cmd=/usr/bin/file + case $host_cpu in + ia64*) + lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF-[0-9][0-9]) shared object file - IA64' + lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so + ;; + hppa*64*) + lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF[ -][0-9][0-9])(-bit)?( [LM]SB)? shared object( file)?[, -]* PA-RISC [0-9]\.[0-9]' + lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl + ;; + *) + lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|PA-RISC[0-9]\.[0-9]) shared library' + lt_cv_file_magic_test_file=/usr/lib/libc.sl + ;; + esac + ;; + +interix[3-9]*) + # PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here + lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|\.a)$' + ;; + +irix5* | irix6* | nonstopux*) + case $LD in + *-32|*"-32 ") libmagic=32-bit;; + *-n32|*"-n32 ") libmagic=N32;; + *-64|*"-64 ") libmagic=64-bit;; + *) libmagic=never-match;; + esac + lt_cv_deplibs_check_method=pass_all + ;; + +# This must be glibc/ELF. +linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) + lt_cv_deplibs_check_method=pass_all + ;; + +netbsd*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then + lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$' + else + lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|_pic\.a)$' + fi + ;; + +newos6*) + lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (executable|dynamic lib)' + lt_cv_file_magic_cmd=/usr/bin/file + lt_cv_file_magic_test_file=/usr/lib/libnls.so + ;; + +*nto* | *qnx*) + lt_cv_deplibs_check_method=pass_all + ;; + +openbsd* | bitrig*) + if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then + lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|\.so|_pic\.a)$' + else + lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$' + fi + ;; + +osf3* | osf4* | osf5*) + lt_cv_deplibs_check_method=pass_all + ;; + +rdos*) + lt_cv_deplibs_check_method=pass_all + ;; + +solaris*) + lt_cv_deplibs_check_method=pass_all + ;; + +sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*) + lt_cv_deplibs_check_method=pass_all + ;; + +sysv4 | sysv4.3*) + case $host_vendor in + motorola) + lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib) M[0-9][0-9]* Version [0-9]' + lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*` + ;; + ncr) + lt_cv_deplibs_check_method=pass_all + ;; + sequent) + lt_cv_file_magic_cmd='/bin/file' + lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [LM]SB (shared object|dynamic lib )' + ;; + sni) + lt_cv_file_magic_cmd='/bin/file' + lt_cv_deplibs_check_method="file_magic ELF [0-9][0-9]*-bit [LM]SB dynamic lib" + lt_cv_file_magic_test_file=/lib/libc.so + ;; + siemens) + lt_cv_deplibs_check_method=pass_all + ;; + pc) + lt_cv_deplibs_check_method=pass_all + ;; + esac + ;; + +tpf*) + lt_cv_deplibs_check_method=pass_all + ;; +os2*) + lt_cv_deplibs_check_method=pass_all + ;; +esac + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_deplibs_check_method" >&5 +$as_echo "$lt_cv_deplibs_check_method" >&6; } + +file_magic_glob= +want_nocaseglob=no +if test "$build" = "$host"; then + case $host_os in + mingw* | pw32*) + if ( shopt | grep nocaseglob ) >/dev/null 2>&1; then + want_nocaseglob=yes + else + file_magic_glob=`echo aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ | $SED -e "s/\(..\)/s\/[\1]\/[\1]\/g;/g"` + fi + ;; + esac +fi + +file_magic_cmd=$lt_cv_file_magic_cmd +deplibs_check_method=$lt_cv_deplibs_check_method +test -z "$deplibs_check_method" && deplibs_check_method=unknown + + + + + + + + + + + + + + + + + + + + + + +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}dlltool", so it can be a program name with args. +set dummy ${ac_tool_prefix}dlltool; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_DLLTOOL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$DLLTOOL"; then + ac_cv_prog_DLLTOOL="$DLLTOOL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_DLLTOOL="${ac_tool_prefix}dlltool" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +DLLTOOL=$ac_cv_prog_DLLTOOL +if test -n "$DLLTOOL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DLLTOOL" >&5 +$as_echo "$DLLTOOL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_DLLTOOL"; then + ac_ct_DLLTOOL=$DLLTOOL + # Extract the first word of "dlltool", so it can be a program name with args. +set dummy dlltool; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_DLLTOOL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_DLLTOOL"; then + ac_cv_prog_ac_ct_DLLTOOL="$ac_ct_DLLTOOL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_DLLTOOL="dlltool" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_DLLTOOL=$ac_cv_prog_ac_ct_DLLTOOL +if test -n "$ac_ct_DLLTOOL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DLLTOOL" >&5 +$as_echo "$ac_ct_DLLTOOL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_DLLTOOL" = x; then + DLLTOOL="false" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + DLLTOOL=$ac_ct_DLLTOOL + fi +else + DLLTOOL="$ac_cv_prog_DLLTOOL" +fi + +test -z "$DLLTOOL" && DLLTOOL=dlltool + + + + + + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to associate runtime and link libraries" >&5 +$as_echo_n "checking how to associate runtime and link libraries... " >&6; } +if ${lt_cv_sharedlib_from_linklib_cmd+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_sharedlib_from_linklib_cmd='unknown' + +case $host_os in +cygwin* | mingw* | pw32* | cegcc*) + # two different shell functions defined in ltmain.sh; + # decide which one to use based on capabilities of $DLLTOOL + case `$DLLTOOL --help 2>&1` in + *--identify-strict*) + lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib + ;; + *) + lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib_fallback + ;; + esac + ;; +*) + # fallback: assume linklib IS sharedlib + lt_cv_sharedlib_from_linklib_cmd=$ECHO + ;; +esac + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sharedlib_from_linklib_cmd" >&5 +$as_echo "$lt_cv_sharedlib_from_linklib_cmd" >&6; } +sharedlib_from_linklib_cmd=$lt_cv_sharedlib_from_linklib_cmd +test -z "$sharedlib_from_linklib_cmd" && sharedlib_from_linklib_cmd=$ECHO + + + + + + + +if test -n "$ac_tool_prefix"; then + for ac_prog in ar + do + # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. +set dummy $ac_tool_prefix$ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_AR+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$AR"; then + ac_cv_prog_AR="$AR" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_AR="$ac_tool_prefix$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +AR=$ac_cv_prog_AR +if test -n "$AR"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AR" >&5 +$as_echo "$AR" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$AR" && break + done +fi +if test -z "$AR"; then + ac_ct_AR=$AR + for ac_prog in ar +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_AR+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_AR"; then + ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_AR="$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_AR=$ac_cv_prog_ac_ct_AR +if test -n "$ac_ct_AR"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5 +$as_echo "$ac_ct_AR" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$ac_ct_AR" && break +done + + if test "x$ac_ct_AR" = x; then + AR="false" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + AR=$ac_ct_AR + fi +fi + +: ${AR=ar} +: ${AR_FLAGS=cru} + + + + + + + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for archiver @FILE support" >&5 +$as_echo_n "checking for archiver @FILE support... " >&6; } +if ${lt_cv_ar_at_file+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_ar_at_file=no + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + echo conftest.$ac_objext > conftest.lst + lt_ar_try='$AR $AR_FLAGS libconftest.a @conftest.lst >&5' + { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$lt_ar_try\""; } >&5 + (eval $lt_ar_try) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + if test 0 -eq "$ac_status"; then + # Ensure the archiver fails upon bogus file names. + rm -f conftest.$ac_objext libconftest.a + { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$lt_ar_try\""; } >&5 + (eval $lt_ar_try) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + if test 0 -ne "$ac_status"; then + lt_cv_ar_at_file=@ + fi + fi + rm -f conftest.* libconftest.a + +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ar_at_file" >&5 +$as_echo "$lt_cv_ar_at_file" >&6; } + +if test no = "$lt_cv_ar_at_file"; then + archiver_list_spec= +else + archiver_list_spec=$lt_cv_ar_at_file +fi + + + + + + + +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args. +set dummy ${ac_tool_prefix}strip; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_STRIP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$STRIP"; then + ac_cv_prog_STRIP="$STRIP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_STRIP="${ac_tool_prefix}strip" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +STRIP=$ac_cv_prog_STRIP +if test -n "$STRIP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5 +$as_echo "$STRIP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_STRIP"; then + ac_ct_STRIP=$STRIP + # Extract the first word of "strip", so it can be a program name with args. +set dummy strip; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_STRIP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_STRIP"; then + ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_STRIP="strip" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP +if test -n "$ac_ct_STRIP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5 +$as_echo "$ac_ct_STRIP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_STRIP" = x; then + STRIP=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + STRIP=$ac_ct_STRIP + fi +else + STRIP="$ac_cv_prog_STRIP" +fi + +test -z "$STRIP" && STRIP=: + + + + + + +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args. +set dummy ${ac_tool_prefix}ranlib; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_RANLIB+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$RANLIB"; then + ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +RANLIB=$ac_cv_prog_RANLIB +if test -n "$RANLIB"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RANLIB" >&5 +$as_echo "$RANLIB" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_RANLIB"; then + ac_ct_RANLIB=$RANLIB + # Extract the first word of "ranlib", so it can be a program name with args. +set dummy ranlib; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_RANLIB+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_RANLIB"; then + ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_RANLIB="ranlib" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB +if test -n "$ac_ct_RANLIB"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RANLIB" >&5 +$as_echo "$ac_ct_RANLIB" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_RANLIB" = x; then + RANLIB=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + RANLIB=$ac_ct_RANLIB + fi +else + RANLIB="$ac_cv_prog_RANLIB" +fi + +test -z "$RANLIB" && RANLIB=: + + + + + + +# Determine commands to create old-style static archives. +old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs' +old_postinstall_cmds='chmod 644 $oldlib' +old_postuninstall_cmds= + +if test -n "$RANLIB"; then + case $host_os in + bitrig* | openbsd*) + old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$tool_oldlib" + ;; + *) + old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$tool_oldlib" + ;; + esac + old_archive_cmds="$old_archive_cmds~\$RANLIB \$tool_oldlib" +fi + +case $host_os in + darwin*) + lock_old_archive_extraction=yes ;; + *) + lock_old_archive_extraction=no ;; +esac + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +# If no C compiler was specified, use CC. +LTCC=${LTCC-"$CC"} + +# If no C compiler flags were specified, use CFLAGS. +LTCFLAGS=${LTCFLAGS-"$CFLAGS"} + +# Allow CC to be a program name with arguments. +compiler=$CC + + +# Check for command to grab the raw symbol name followed by C symbol from nm. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking command to parse $NM output from $compiler object" >&5 +$as_echo_n "checking command to parse $NM output from $compiler object... " >&6; } +if ${lt_cv_sys_global_symbol_pipe+:} false; then : + $as_echo_n "(cached) " >&6 +else + +# These are sane defaults that work on at least a few old systems. +# [They come from Ultrix. What could be older than Ultrix?!! ;)] + +# Character class describing NM global symbol codes. +symcode='[BCDEGRST]' + +# Regexp to match symbols that can be accessed directly from C. +sympat='\([_A-Za-z][_A-Za-z0-9]*\)' + +# Define system-specific variables. +case $host_os in +aix*) + symcode='[BCDT]' + ;; +cygwin* | mingw* | pw32* | cegcc*) + symcode='[ABCDGISTW]' + ;; +hpux*) + if test ia64 = "$host_cpu"; then + symcode='[ABCDEGRST]' + fi + ;; +irix* | nonstopux*) + symcode='[BCDEGRST]' + ;; +osf*) + symcode='[BCDEGQRST]' + ;; +solaris*) + symcode='[BDRT]' + ;; +sco3.2v5*) + symcode='[DT]' + ;; +sysv4.2uw2*) + symcode='[DT]' + ;; +sysv5* | sco5v6* | unixware* | OpenUNIX*) + symcode='[ABDT]' + ;; +sysv4) + symcode='[DFNSTU]' + ;; +esac + +# If we're using GNU nm, then use its standard symbol codes. +case `$NM -V 2>&1` in +*GNU* | *'with BFD'*) + symcode='[ABCDGIRSTW]' ;; +esac + +if test "$lt_cv_nm_interface" = "MS dumpbin"; then + # Gets list of data symbols to import. + lt_cv_sys_global_symbol_to_import="sed -n -e 's/^I .* \(.*\)$/\1/p'" + # Adjust the below global symbol transforms to fixup imported variables. + lt_cdecl_hook=" -e 's/^I .* \(.*\)$/extern __declspec(dllimport) char \1;/p'" + lt_c_name_hook=" -e 's/^I .* \(.*\)$/ {\"\1\", (void *) 0},/p'" + lt_c_name_lib_hook="\ + -e 's/^I .* \(lib.*\)$/ {\"\1\", (void *) 0},/p'\ + -e 's/^I .* \(.*\)$/ {\"lib\1\", (void *) 0},/p'" +else + # Disable hooks by default. + lt_cv_sys_global_symbol_to_import= + lt_cdecl_hook= + lt_c_name_hook= + lt_c_name_lib_hook= +fi + +# Transform an extracted symbol line into a proper C declaration. +# Some systems (esp. on ia64) link data and code symbols differently, +# so use this general approach. +lt_cv_sys_global_symbol_to_cdecl="sed -n"\ +$lt_cdecl_hook\ +" -e 's/^T .* \(.*\)$/extern int \1();/p'"\ +" -e 's/^$symcode$symcode* .* \(.*\)$/extern char \1;/p'" + +# Transform an extracted symbol line into symbol name and symbol address +lt_cv_sys_global_symbol_to_c_name_address="sed -n"\ +$lt_c_name_hook\ +" -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\ +" -e 's/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/p'" + +# Transform an extracted symbol line into symbol name with lib prefix and +# symbol address. +lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n"\ +$lt_c_name_lib_hook\ +" -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\ +" -e 's/^$symcode$symcode* .* \(lib.*\)$/ {\"\1\", (void *) \&\1},/p'"\ +" -e 's/^$symcode$symcode* .* \(.*\)$/ {\"lib\1\", (void *) \&\1},/p'" + +# Handle CRLF in mingw tool chain +opt_cr= +case $build_os in +mingw*) + opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp + ;; +esac + +# Try without a prefix underscore, then with it. +for ac_symprfx in "" "_"; do + + # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol. + symxfrm="\\1 $ac_symprfx\\2 \\2" + + # Write the raw and C identifiers. + if test "$lt_cv_nm_interface" = "MS dumpbin"; then + # Fake it for dumpbin and say T for any non-static function, + # D for any global variable and I for any imported variable. + # Also find C++ and __fastcall symbols from MSVC++, + # which start with @ or ?. + lt_cv_sys_global_symbol_pipe="$AWK '"\ +" {last_section=section; section=\$ 3};"\ +" /^COFF SYMBOL TABLE/{for(i in hide) delete hide[i]};"\ +" /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\ +" /^ *Symbol name *: /{split(\$ 0,sn,\":\"); si=substr(sn[2],2)};"\ +" /^ *Type *: code/{print \"T\",si,substr(si,length(prfx))};"\ +" /^ *Type *: data/{print \"I\",si,substr(si,length(prfx))};"\ +" \$ 0!~/External *\|/{next};"\ +" / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\ +" {if(hide[section]) next};"\ +" {f=\"D\"}; \$ 0~/\(\).*\|/{f=\"T\"};"\ +" {split(\$ 0,a,/\||\r/); split(a[2],s)};"\ +" s[1]~/^[@?]/{print f,s[1],s[1]; next};"\ +" s[1]~prfx {split(s[1],t,\"@\"); print f,t[1],substr(t[1],length(prfx))}"\ +" ' prfx=^$ac_symprfx" + else + lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[ ]\($symcode$symcode*\)[ ][ ]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'" + fi + lt_cv_sys_global_symbol_pipe="$lt_cv_sys_global_symbol_pipe | sed '/ __gnu_lto/d'" + + # Check to see that the pipe works correctly. + pipe_works=no + + rm -f conftest* + cat > conftest.$ac_ext <<_LT_EOF +#ifdef __cplusplus +extern "C" { +#endif +char nm_test_var; +void nm_test_func(void); +void nm_test_func(void){} +#ifdef __cplusplus +} +#endif +int main(){nm_test_var='a';nm_test_func();return(0);} +_LT_EOF + + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + # Now try to grab the symbols. + nlist=conftest.nm + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist\""; } >&5 + (eval $NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } && test -s "$nlist"; then + # Try sorting and uniquifying the output. + if sort "$nlist" | uniq > "$nlist"T; then + mv -f "$nlist"T "$nlist" + else + rm -f "$nlist"T + fi + + # Make sure that we snagged all the symbols we need. + if $GREP ' nm_test_var$' "$nlist" >/dev/null; then + if $GREP ' nm_test_func$' "$nlist" >/dev/null; then + cat <<_LT_EOF > conftest.$ac_ext +/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */ +#if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE +/* DATA imports from DLLs on WIN32 can't be const, because runtime + relocations are performed -- see ld's documentation on pseudo-relocs. */ +# define LT_DLSYM_CONST +#elif defined __osf__ +/* This system does not cope well with relocations in const data. */ +# define LT_DLSYM_CONST +#else +# define LT_DLSYM_CONST const +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +_LT_EOF + # Now generate the symbol file. + eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext' + + cat <<_LT_EOF >> conftest.$ac_ext + +/* The mapping between symbol names and symbols. */ +LT_DLSYM_CONST struct { + const char *name; + void *address; +} +lt__PROGRAM__LTX_preloaded_symbols[] = +{ + { "@PROGRAM@", (void *) 0 }, +_LT_EOF + $SED "s/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext + cat <<\_LT_EOF >> conftest.$ac_ext + {0, (void *) 0} +}; + +/* This works around a problem in FreeBSD linker */ +#ifdef FREEBSD_WORKAROUND +static const void *lt_preloaded_setup() { + return lt__PROGRAM__LTX_preloaded_symbols; +} +#endif + +#ifdef __cplusplus +} +#endif +_LT_EOF + # Now try linking the two files. + mv conftest.$ac_objext conftstm.$ac_objext + lt_globsym_save_LIBS=$LIBS + lt_globsym_save_CFLAGS=$CFLAGS + LIBS=conftstm.$ac_objext + CFLAGS="$CFLAGS$lt_prog_compiler_no_builtin_flag" + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5 + (eval $ac_link) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } && test -s conftest$ac_exeext; then + pipe_works=yes + fi + LIBS=$lt_globsym_save_LIBS + CFLAGS=$lt_globsym_save_CFLAGS + else + echo "cannot find nm_test_func in $nlist" >&5 + fi + else + echo "cannot find nm_test_var in $nlist" >&5 + fi + else + echo "cannot run $lt_cv_sys_global_symbol_pipe" >&5 + fi + else + echo "$progname: failed program was:" >&5 + cat conftest.$ac_ext >&5 + fi + rm -rf conftest* conftst* + + # Do not use the global_symbol_pipe unless it works. + if test yes = "$pipe_works"; then + break + else + lt_cv_sys_global_symbol_pipe= + fi +done + +fi + +if test -z "$lt_cv_sys_global_symbol_pipe"; then + lt_cv_sys_global_symbol_to_cdecl= +fi +if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: failed" >&5 +$as_echo "failed" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5 +$as_echo "ok" >&6; } +fi + +# Response file support. +if test "$lt_cv_nm_interface" = "MS dumpbin"; then + nm_file_list_spec='@' +elif $NM --help 2>/dev/null | grep '[@]FILE' >/dev/null; then + nm_file_list_spec='@' +fi + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for sysroot" >&5 +$as_echo_n "checking for sysroot... " >&6; } + +# Check whether --with-sysroot was given. +if test "${with_sysroot+set}" = set; then : + withval=$with_sysroot; +else + with_sysroot=no +fi + + +lt_sysroot= +case $with_sysroot in #( + yes) + if test yes = "$GCC"; then + lt_sysroot=`$CC --print-sysroot 2>/dev/null` + fi + ;; #( + /*) + lt_sysroot=`echo "$with_sysroot" | sed -e "$sed_quote_subst"` + ;; #( + no|'') + ;; #( + *) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_sysroot" >&5 +$as_echo "$with_sysroot" >&6; } + as_fn_error $? "The sysroot must be an absolute path." "$LINENO" 5 + ;; +esac + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${lt_sysroot:-no}" >&5 +$as_echo "${lt_sysroot:-no}" >&6; } + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a working dd" >&5 +$as_echo_n "checking for a working dd... " >&6; } +if ${ac_cv_path_lt_DD+:} false; then : + $as_echo_n "(cached) " >&6 +else + printf 0123456789abcdef0123456789abcdef >conftest.i +cat conftest.i conftest.i >conftest2.i +: ${lt_DD:=$DD} +if test -z "$lt_DD"; then + ac_path_lt_DD_found=false + # Loop through the user's path and test for each of PROGNAME-LIST + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_prog in dd; do + for ac_exec_ext in '' $ac_executable_extensions; do + ac_path_lt_DD="$as_dir/$ac_prog$ac_exec_ext" + as_fn_executable_p "$ac_path_lt_DD" || continue +if "$ac_path_lt_DD" bs=32 count=1 conftest.out 2>/dev/null; then + cmp -s conftest.i conftest.out \ + && ac_cv_path_lt_DD="$ac_path_lt_DD" ac_path_lt_DD_found=: +fi + $ac_path_lt_DD_found && break 3 + done + done + done +IFS=$as_save_IFS + if test -z "$ac_cv_path_lt_DD"; then + : + fi +else + ac_cv_path_lt_DD=$lt_DD +fi + +rm -f conftest.i conftest2.i conftest.out +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_lt_DD" >&5 +$as_echo "$ac_cv_path_lt_DD" >&6; } + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to truncate binary pipes" >&5 +$as_echo_n "checking how to truncate binary pipes... " >&6; } +if ${lt_cv_truncate_bin+:} false; then : + $as_echo_n "(cached) " >&6 +else + printf 0123456789abcdef0123456789abcdef >conftest.i +cat conftest.i conftest.i >conftest2.i +lt_cv_truncate_bin= +if "$ac_cv_path_lt_DD" bs=32 count=1 conftest.out 2>/dev/null; then + cmp -s conftest.i conftest.out \ + && lt_cv_truncate_bin="$ac_cv_path_lt_DD bs=4096 count=1" +fi +rm -f conftest.i conftest2.i conftest.out +test -z "$lt_cv_truncate_bin" && lt_cv_truncate_bin="$SED -e 4q" +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_truncate_bin" >&5 +$as_echo "$lt_cv_truncate_bin" >&6; } + + + + + + + +# Calculate cc_basename. Skip known compiler wrappers and cross-prefix. +func_cc_basename () +{ + for cc_temp in $*""; do + case $cc_temp in + compile | *[\\/]compile | ccache | *[\\/]ccache ) ;; + distcc | *[\\/]distcc | purify | *[\\/]purify ) ;; + \-*) ;; + *) break;; + esac + done + func_cc_basename_result=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"` +} + +# Check whether --enable-libtool-lock was given. +if test "${enable_libtool_lock+set}" = set; then : + enableval=$enable_libtool_lock; +fi + +test no = "$enable_libtool_lock" || enable_libtool_lock=yes + +# Some flags need to be propagated to the compiler or linker for good +# libtool support. +case $host in +ia64-*-hpux*) + # Find out what ABI is being produced by ac_compile, and set mode + # options accordingly. + echo 'int i;' > conftest.$ac_ext + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + case `/usr/bin/file conftest.$ac_objext` in + *ELF-32*) + HPUX_IA64_MODE=32 + ;; + *ELF-64*) + HPUX_IA64_MODE=64 + ;; + esac + fi + rm -rf conftest* + ;; +*-*-irix6*) + # Find out what ABI is being produced by ac_compile, and set linker + # options accordingly. + echo '#line '$LINENO' "configure"' > conftest.$ac_ext + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + if test yes = "$lt_cv_prog_gnu_ld"; then + case `/usr/bin/file conftest.$ac_objext` in + *32-bit*) + LD="${LD-ld} -melf32bsmip" + ;; + *N32*) + LD="${LD-ld} -melf32bmipn32" + ;; + *64-bit*) + LD="${LD-ld} -melf64bmip" + ;; + esac + else + case `/usr/bin/file conftest.$ac_objext` in + *32-bit*) + LD="${LD-ld} -32" + ;; + *N32*) + LD="${LD-ld} -n32" + ;; + *64-bit*) + LD="${LD-ld} -64" + ;; + esac + fi + fi + rm -rf conftest* + ;; + +mips64*-*linux*) + # Find out what ABI is being produced by ac_compile, and set linker + # options accordingly. + echo '#line '$LINENO' "configure"' > conftest.$ac_ext + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + emul=elf + case `/usr/bin/file conftest.$ac_objext` in + *32-bit*) + emul="${emul}32" + ;; + *64-bit*) + emul="${emul}64" + ;; + esac + case `/usr/bin/file conftest.$ac_objext` in + *MSB*) + emul="${emul}btsmip" + ;; + *LSB*) + emul="${emul}ltsmip" + ;; + esac + case `/usr/bin/file conftest.$ac_objext` in + *N32*) + emul="${emul}n32" + ;; + esac + LD="${LD-ld} -m $emul" + fi + rm -rf conftest* + ;; + +x86_64-*kfreebsd*-gnu|x86_64-*linux*|powerpc*-*linux*| \ +s390*-*linux*|s390*-*tpf*|sparc*-*linux*) + # Find out what ABI is being produced by ac_compile, and set linker + # options accordingly. Note that the listed cases only cover the + # situations where additional linker options are needed (such as when + # doing 32-bit compilation for a host where ld defaults to 64-bit, or + # vice versa); the common cases where no linker options are needed do + # not appear in the list. + echo 'int i;' > conftest.$ac_ext + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + case `/usr/bin/file conftest.o` in + *32-bit*) + case $host in + x86_64-*kfreebsd*-gnu) + LD="${LD-ld} -m elf_i386_fbsd" + ;; + x86_64-*linux*) + case `/usr/bin/file conftest.o` in + *x86-64*) + LD="${LD-ld} -m elf32_x86_64" + ;; + *) + LD="${LD-ld} -m elf_i386" + ;; + esac + ;; + powerpc64le-*linux*) + LD="${LD-ld} -m elf32lppclinux" + ;; + powerpc64-*linux*) + LD="${LD-ld} -m elf32ppclinux" + ;; + s390x-*linux*) + LD="${LD-ld} -m elf_s390" + ;; + sparc64-*linux*) + LD="${LD-ld} -m elf32_sparc" + ;; + esac + ;; + *64-bit*) + case $host in + x86_64-*kfreebsd*-gnu) + LD="${LD-ld} -m elf_x86_64_fbsd" + ;; + x86_64-*linux*) + LD="${LD-ld} -m elf_x86_64" + ;; + powerpcle-*linux*) + LD="${LD-ld} -m elf64lppc" + ;; + powerpc-*linux*) + LD="${LD-ld} -m elf64ppc" + ;; + s390*-*linux*|s390*-*tpf*) + LD="${LD-ld} -m elf64_s390" + ;; + sparc*-*linux*) + LD="${LD-ld} -m elf64_sparc" + ;; + esac + ;; + esac + fi + rm -rf conftest* + ;; + +*-*-sco3.2v5*) + # On SCO OpenServer 5, we need -belf to get full-featured binaries. + SAVE_CFLAGS=$CFLAGS + CFLAGS="$CFLAGS -belf" + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler needs -belf" >&5 +$as_echo_n "checking whether the C compiler needs -belf... " >&6; } +if ${lt_cv_cc_needs_belf+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + lt_cv_cc_needs_belf=yes +else + lt_cv_cc_needs_belf=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_cc_needs_belf" >&5 +$as_echo "$lt_cv_cc_needs_belf" >&6; } + if test yes != "$lt_cv_cc_needs_belf"; then + # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf + CFLAGS=$SAVE_CFLAGS + fi + ;; +*-*solaris*) + # Find out what ABI is being produced by ac_compile, and set linker + # options accordingly. + echo 'int i;' > conftest.$ac_ext + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + case `/usr/bin/file conftest.o` in + *64-bit*) + case $lt_cv_prog_gnu_ld in + yes*) + case $host in + i?86-*-solaris*|x86_64-*-solaris*) + LD="${LD-ld} -m elf_x86_64" + ;; + sparc*-*-solaris*) + LD="${LD-ld} -m elf64_sparc" + ;; + esac + # GNU ld 2.21 introduced _sol2 emulations. Use them if available. + if ${LD-ld} -V | grep _sol2 >/dev/null 2>&1; then + LD=${LD-ld}_sol2 + fi + ;; + *) + if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then + LD="${LD-ld} -64" + fi + ;; + esac + ;; + esac + fi + rm -rf conftest* + ;; +esac + +need_locks=$enable_libtool_lock + +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}mt", so it can be a program name with args. +set dummy ${ac_tool_prefix}mt; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_MANIFEST_TOOL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$MANIFEST_TOOL"; then + ac_cv_prog_MANIFEST_TOOL="$MANIFEST_TOOL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_MANIFEST_TOOL="${ac_tool_prefix}mt" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +MANIFEST_TOOL=$ac_cv_prog_MANIFEST_TOOL +if test -n "$MANIFEST_TOOL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MANIFEST_TOOL" >&5 +$as_echo "$MANIFEST_TOOL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_MANIFEST_TOOL"; then + ac_ct_MANIFEST_TOOL=$MANIFEST_TOOL + # Extract the first word of "mt", so it can be a program name with args. +set dummy mt; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_MANIFEST_TOOL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_MANIFEST_TOOL"; then + ac_cv_prog_ac_ct_MANIFEST_TOOL="$ac_ct_MANIFEST_TOOL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_MANIFEST_TOOL="mt" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_MANIFEST_TOOL=$ac_cv_prog_ac_ct_MANIFEST_TOOL +if test -n "$ac_ct_MANIFEST_TOOL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_MANIFEST_TOOL" >&5 +$as_echo "$ac_ct_MANIFEST_TOOL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_MANIFEST_TOOL" = x; then + MANIFEST_TOOL=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + MANIFEST_TOOL=$ac_ct_MANIFEST_TOOL + fi +else + MANIFEST_TOOL="$ac_cv_prog_MANIFEST_TOOL" +fi + +test -z "$MANIFEST_TOOL" && MANIFEST_TOOL=mt +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $MANIFEST_TOOL is a manifest tool" >&5 +$as_echo_n "checking if $MANIFEST_TOOL is a manifest tool... " >&6; } +if ${lt_cv_path_mainfest_tool+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_path_mainfest_tool=no + echo "$as_me:$LINENO: $MANIFEST_TOOL '-?'" >&5 + $MANIFEST_TOOL '-?' 2>conftest.err > conftest.out + cat conftest.err >&5 + if $GREP 'Manifest Tool' conftest.out > /dev/null; then + lt_cv_path_mainfest_tool=yes + fi + rm -f conftest* +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_mainfest_tool" >&5 +$as_echo "$lt_cv_path_mainfest_tool" >&6; } +if test yes != "$lt_cv_path_mainfest_tool"; then + MANIFEST_TOOL=: +fi + + + + + + + case $host_os in + rhapsody* | darwin*) + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}dsymutil", so it can be a program name with args. +set dummy ${ac_tool_prefix}dsymutil; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_DSYMUTIL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$DSYMUTIL"; then + ac_cv_prog_DSYMUTIL="$DSYMUTIL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_DSYMUTIL="${ac_tool_prefix}dsymutil" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +DSYMUTIL=$ac_cv_prog_DSYMUTIL +if test -n "$DSYMUTIL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DSYMUTIL" >&5 +$as_echo "$DSYMUTIL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_DSYMUTIL"; then + ac_ct_DSYMUTIL=$DSYMUTIL + # Extract the first word of "dsymutil", so it can be a program name with args. +set dummy dsymutil; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_DSYMUTIL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_DSYMUTIL"; then + ac_cv_prog_ac_ct_DSYMUTIL="$ac_ct_DSYMUTIL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_DSYMUTIL="dsymutil" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_DSYMUTIL=$ac_cv_prog_ac_ct_DSYMUTIL +if test -n "$ac_ct_DSYMUTIL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DSYMUTIL" >&5 +$as_echo "$ac_ct_DSYMUTIL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_DSYMUTIL" = x; then + DSYMUTIL=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + DSYMUTIL=$ac_ct_DSYMUTIL + fi +else + DSYMUTIL="$ac_cv_prog_DSYMUTIL" +fi + + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}nmedit", so it can be a program name with args. +set dummy ${ac_tool_prefix}nmedit; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_NMEDIT+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$NMEDIT"; then + ac_cv_prog_NMEDIT="$NMEDIT" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_NMEDIT="${ac_tool_prefix}nmedit" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +NMEDIT=$ac_cv_prog_NMEDIT +if test -n "$NMEDIT"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $NMEDIT" >&5 +$as_echo "$NMEDIT" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_NMEDIT"; then + ac_ct_NMEDIT=$NMEDIT + # Extract the first word of "nmedit", so it can be a program name with args. +set dummy nmedit; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_NMEDIT+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_NMEDIT"; then + ac_cv_prog_ac_ct_NMEDIT="$ac_ct_NMEDIT" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_NMEDIT="nmedit" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_NMEDIT=$ac_cv_prog_ac_ct_NMEDIT +if test -n "$ac_ct_NMEDIT"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_NMEDIT" >&5 +$as_echo "$ac_ct_NMEDIT" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_NMEDIT" = x; then + NMEDIT=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + NMEDIT=$ac_ct_NMEDIT + fi +else + NMEDIT="$ac_cv_prog_NMEDIT" +fi + + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}lipo", so it can be a program name with args. +set dummy ${ac_tool_prefix}lipo; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_LIPO+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$LIPO"; then + ac_cv_prog_LIPO="$LIPO" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_LIPO="${ac_tool_prefix}lipo" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +LIPO=$ac_cv_prog_LIPO +if test -n "$LIPO"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LIPO" >&5 +$as_echo "$LIPO" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_LIPO"; then + ac_ct_LIPO=$LIPO + # Extract the first word of "lipo", so it can be a program name with args. +set dummy lipo; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_LIPO+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_LIPO"; then + ac_cv_prog_ac_ct_LIPO="$ac_ct_LIPO" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_LIPO="lipo" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_LIPO=$ac_cv_prog_ac_ct_LIPO +if test -n "$ac_ct_LIPO"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_LIPO" >&5 +$as_echo "$ac_ct_LIPO" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_LIPO" = x; then + LIPO=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + LIPO=$ac_ct_LIPO + fi +else + LIPO="$ac_cv_prog_LIPO" +fi + + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}otool", so it can be a program name with args. +set dummy ${ac_tool_prefix}otool; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_OTOOL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$OTOOL"; then + ac_cv_prog_OTOOL="$OTOOL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_OTOOL="${ac_tool_prefix}otool" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +OTOOL=$ac_cv_prog_OTOOL +if test -n "$OTOOL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL" >&5 +$as_echo "$OTOOL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_OTOOL"; then + ac_ct_OTOOL=$OTOOL + # Extract the first word of "otool", so it can be a program name with args. +set dummy otool; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_OTOOL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_OTOOL"; then + ac_cv_prog_ac_ct_OTOOL="$ac_ct_OTOOL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_OTOOL="otool" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_OTOOL=$ac_cv_prog_ac_ct_OTOOL +if test -n "$ac_ct_OTOOL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL" >&5 +$as_echo "$ac_ct_OTOOL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_OTOOL" = x; then + OTOOL=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + OTOOL=$ac_ct_OTOOL + fi +else + OTOOL="$ac_cv_prog_OTOOL" +fi + + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}otool64", so it can be a program name with args. +set dummy ${ac_tool_prefix}otool64; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_OTOOL64+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$OTOOL64"; then + ac_cv_prog_OTOOL64="$OTOOL64" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_OTOOL64="${ac_tool_prefix}otool64" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +OTOOL64=$ac_cv_prog_OTOOL64 +if test -n "$OTOOL64"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL64" >&5 +$as_echo "$OTOOL64" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_OTOOL64"; then + ac_ct_OTOOL64=$OTOOL64 + # Extract the first word of "otool64", so it can be a program name with args. +set dummy otool64; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_OTOOL64+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_OTOOL64"; then + ac_cv_prog_ac_ct_OTOOL64="$ac_ct_OTOOL64" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_OTOOL64="otool64" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_OTOOL64=$ac_cv_prog_ac_ct_OTOOL64 +if test -n "$ac_ct_OTOOL64"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL64" >&5 +$as_echo "$ac_ct_OTOOL64" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_OTOOL64" = x; then + OTOOL64=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + OTOOL64=$ac_ct_OTOOL64 + fi +else + OTOOL64="$ac_cv_prog_OTOOL64" +fi + + + + + + + + + + + + + + + + + + + + + + + + + + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -single_module linker flag" >&5 +$as_echo_n "checking for -single_module linker flag... " >&6; } +if ${lt_cv_apple_cc_single_mod+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_apple_cc_single_mod=no + if test -z "$LT_MULTI_MODULE"; then + # By default we will add the -single_module flag. You can override + # by either setting the environment variable LT_MULTI_MODULE + # non-empty at configure time, or by adding -multi_module to the + # link flags. + rm -rf libconftest.dylib* + echo "int foo(void){return 1;}" > conftest.c + echo "$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \ +-dynamiclib -Wl,-single_module conftest.c" >&5 + $LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \ + -dynamiclib -Wl,-single_module conftest.c 2>conftest.err + _lt_result=$? + # If there is a non-empty error log, and "single_module" + # appears in it, assume the flag caused a linker warning + if test -s conftest.err && $GREP single_module conftest.err; then + cat conftest.err >&5 + # Otherwise, if the output was created with a 0 exit code from + # the compiler, it worked. + elif test -f libconftest.dylib && test 0 = "$_lt_result"; then + lt_cv_apple_cc_single_mod=yes + else + cat conftest.err >&5 + fi + rm -rf libconftest.dylib* + rm -f conftest.* + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_apple_cc_single_mod" >&5 +$as_echo "$lt_cv_apple_cc_single_mod" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -exported_symbols_list linker flag" >&5 +$as_echo_n "checking for -exported_symbols_list linker flag... " >&6; } +if ${lt_cv_ld_exported_symbols_list+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_ld_exported_symbols_list=no + save_LDFLAGS=$LDFLAGS + echo "_main" > conftest.sym + LDFLAGS="$LDFLAGS -Wl,-exported_symbols_list,conftest.sym" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + lt_cv_ld_exported_symbols_list=yes +else + lt_cv_ld_exported_symbols_list=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + LDFLAGS=$save_LDFLAGS + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_exported_symbols_list" >&5 +$as_echo "$lt_cv_ld_exported_symbols_list" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -force_load linker flag" >&5 +$as_echo_n "checking for -force_load linker flag... " >&6; } +if ${lt_cv_ld_force_load+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_ld_force_load=no + cat > conftest.c << _LT_EOF +int forced_loaded() { return 2;} +_LT_EOF + echo "$LTCC $LTCFLAGS -c -o conftest.o conftest.c" >&5 + $LTCC $LTCFLAGS -c -o conftest.o conftest.c 2>&5 + echo "$AR cru libconftest.a conftest.o" >&5 + $AR cru libconftest.a conftest.o 2>&5 + echo "$RANLIB libconftest.a" >&5 + $RANLIB libconftest.a 2>&5 + cat > conftest.c << _LT_EOF +int main() { return 0;} +_LT_EOF + echo "$LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a" >&5 + $LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a 2>conftest.err + _lt_result=$? + if test -s conftest.err && $GREP force_load conftest.err; then + cat conftest.err >&5 + elif test -f conftest && test 0 = "$_lt_result" && $GREP forced_load conftest >/dev/null 2>&1; then + lt_cv_ld_force_load=yes + else + cat conftest.err >&5 + fi + rm -f conftest.err libconftest.a conftest conftest.c + rm -rf conftest.dSYM + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_force_load" >&5 +$as_echo "$lt_cv_ld_force_load" >&6; } + case $host_os in + rhapsody* | darwin1.[012]) + _lt_dar_allow_undefined='$wl-undefined ${wl}suppress' ;; + darwin1.*) + _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;; + darwin*) # darwin 5.x on + # if running on 10.5 or later, the deployment target defaults + # to the OS version, if on x86, and 10.4, the deployment + # target defaults to 10.4. Don't you love it? + case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in + 10.0,*86*-darwin8*|10.0,*-darwin[91]*) + _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;; + 10.[012][,.]*) + _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;; + 10.*) + _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;; + esac + ;; + esac + if test yes = "$lt_cv_apple_cc_single_mod"; then + _lt_dar_single_mod='$single_module' + fi + if test yes = "$lt_cv_ld_exported_symbols_list"; then + _lt_dar_export_syms=' $wl-exported_symbols_list,$output_objdir/$libname-symbols.expsym' + else + _lt_dar_export_syms='~$NMEDIT -s $output_objdir/$libname-symbols.expsym $lib' + fi + if test : != "$DSYMUTIL" && test no = "$lt_cv_ld_force_load"; then + _lt_dsymutil='~$DSYMUTIL $lib || :' + else + _lt_dsymutil= + fi + ;; + esac + +# func_munge_path_list VARIABLE PATH +# ----------------------------------- +# VARIABLE is name of variable containing _space_ separated list of +# directories to be munged by the contents of PATH, which is string +# having a format: +# "DIR[:DIR]:" +# string "DIR[ DIR]" will be prepended to VARIABLE +# ":DIR[:DIR]" +# string "DIR[ DIR]" will be appended to VARIABLE +# "DIRP[:DIRP]::[DIRA:]DIRA" +# string "DIRP[ DIRP]" will be prepended to VARIABLE and string +# "DIRA[ DIRA]" will be appended to VARIABLE +# "DIR[:DIR]" +# VARIABLE will be replaced by "DIR[ DIR]" +func_munge_path_list () +{ + case x$2 in + x) + ;; + *:) + eval $1=\"`$ECHO $2 | $SED 's/:/ /g'` \$$1\" + ;; + x:*) + eval $1=\"\$$1 `$ECHO $2 | $SED 's/:/ /g'`\" + ;; + *::*) + eval $1=\"\$$1\ `$ECHO $2 | $SED -e 's/.*:://' -e 's/:/ /g'`\" + eval $1=\"`$ECHO $2 | $SED -e 's/::.*//' -e 's/:/ /g'`\ \$$1\" + ;; + *) + eval $1=\"`$ECHO $2 | $SED 's/:/ /g'`\" + ;; + esac +} + +for ac_header in dlfcn.h +do : + ac_fn_c_check_header_compile "$LINENO" "dlfcn.h" "ac_cv_header_dlfcn_h" "$ac_includes_default +" +if test "x$ac_cv_header_dlfcn_h" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_DLFCN_H 1 +_ACEOF + +fi + +done + + + + + +# Set options + + + + enable_dlopen=no + + + enable_win32_dll=no + + + # Check whether --enable-shared was given. +if test "${enable_shared+set}" = set; then : + enableval=$enable_shared; p=${PACKAGE-default} + case $enableval in + yes) enable_shared=yes ;; + no) enable_shared=no ;; + *) + enable_shared=no + # Look at the argument we got. We use all the common list separators. + lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR, + for pkg in $enableval; do + IFS=$lt_save_ifs + if test "X$pkg" = "X$p"; then + enable_shared=yes + fi + done + IFS=$lt_save_ifs + ;; + esac +else + enable_shared=yes +fi + + + + + + + + + + # Check whether --enable-static was given. +if test "${enable_static+set}" = set; then : + enableval=$enable_static; p=${PACKAGE-default} + case $enableval in + yes) enable_static=yes ;; + no) enable_static=no ;; + *) + enable_static=no + # Look at the argument we got. We use all the common list separators. + lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR, + for pkg in $enableval; do + IFS=$lt_save_ifs + if test "X$pkg" = "X$p"; then + enable_static=yes + fi + done + IFS=$lt_save_ifs + ;; + esac +else + enable_static=yes +fi + + + + + + + + + + +# Check whether --with-pic was given. +if test "${with_pic+set}" = set; then : + withval=$with_pic; lt_p=${PACKAGE-default} + case $withval in + yes|no) pic_mode=$withval ;; + *) + pic_mode=default + # Look at the argument we got. We use all the common list separators. + lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR, + for lt_pkg in $withval; do + IFS=$lt_save_ifs + if test "X$lt_pkg" = "X$lt_p"; then + pic_mode=yes + fi + done + IFS=$lt_save_ifs + ;; + esac +else + pic_mode=default +fi + + + + + + + + + # Check whether --enable-fast-install was given. +if test "${enable_fast_install+set}" = set; then : + enableval=$enable_fast_install; p=${PACKAGE-default} + case $enableval in + yes) enable_fast_install=yes ;; + no) enable_fast_install=no ;; + *) + enable_fast_install=no + # Look at the argument we got. We use all the common list separators. + lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR, + for pkg in $enableval; do + IFS=$lt_save_ifs + if test "X$pkg" = "X$p"; then + enable_fast_install=yes + fi + done + IFS=$lt_save_ifs + ;; + esac +else + enable_fast_install=yes +fi + + + + + + + + + shared_archive_member_spec= +case $host,$enable_shared in +power*-*-aix[5-9]*,yes) + { $as_echo "$as_me:${as_lineno-$LINENO}: checking which variant of shared library versioning to provide" >&5 +$as_echo_n "checking which variant of shared library versioning to provide... " >&6; } + +# Check whether --with-aix-soname was given. +if test "${with_aix_soname+set}" = set; then : + withval=$with_aix_soname; case $withval in + aix|svr4|both) + ;; + *) + as_fn_error $? "Unknown argument to --with-aix-soname" "$LINENO" 5 + ;; + esac + lt_cv_with_aix_soname=$with_aix_soname +else + if ${lt_cv_with_aix_soname+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_with_aix_soname=aix +fi + + with_aix_soname=$lt_cv_with_aix_soname +fi + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_aix_soname" >&5 +$as_echo "$with_aix_soname" >&6; } + if test aix != "$with_aix_soname"; then + # For the AIX way of multilib, we name the shared archive member + # based on the bitwidth used, traditionally 'shr.o' or 'shr_64.o', + # and 'shr.imp' or 'shr_64.imp', respectively, for the Import File. + # Even when GNU compilers ignore OBJECT_MODE but need '-maix64' flag, + # the AIX toolchain works better with OBJECT_MODE set (default 32). + if test 64 = "${OBJECT_MODE-32}"; then + shared_archive_member_spec=shr_64 + else + shared_archive_member_spec=shr + fi + fi + ;; +*) + with_aix_soname=aix + ;; +esac + + + + + + + + + + +# This can be used to rebuild libtool when needed +LIBTOOL_DEPS=$ltmain + +# Always use our own libtool. +LIBTOOL='$(SHELL) $(top_builddir)/libtool' + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +test -z "$LN_S" && LN_S="ln -s" + + + + + + + + + + + + + + +if test -n "${ZSH_VERSION+set}"; then + setopt NO_GLOB_SUBST +fi + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for objdir" >&5 +$as_echo_n "checking for objdir... " >&6; } +if ${lt_cv_objdir+:} false; then : + $as_echo_n "(cached) " >&6 +else + rm -f .libs 2>/dev/null +mkdir .libs 2>/dev/null +if test -d .libs; then + lt_cv_objdir=.libs +else + # MS-DOS does not allow filenames that begin with a dot. + lt_cv_objdir=_libs +fi +rmdir .libs 2>/dev/null +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_objdir" >&5 +$as_echo "$lt_cv_objdir" >&6; } +objdir=$lt_cv_objdir + + + + + +cat >>confdefs.h <<_ACEOF +#define LT_OBJDIR "$lt_cv_objdir/" +_ACEOF + + + + +case $host_os in +aix3*) + # AIX sometimes has problems with the GCC collect2 program. For some + # reason, if we set the COLLECT_NAMES environment variable, the problems + # vanish in a puff of smoke. + if test set != "${COLLECT_NAMES+set}"; then + COLLECT_NAMES= + export COLLECT_NAMES + fi + ;; +esac + +# Global variables: +ofile=libtool +can_build_shared=yes + +# All known linkers require a '.a' archive for static linking (except MSVC, +# which needs '.lib'). +libext=a + +with_gnu_ld=$lt_cv_prog_gnu_ld + +old_CC=$CC +old_CFLAGS=$CFLAGS + +# Set sane defaults for various variables +test -z "$CC" && CC=cc +test -z "$LTCC" && LTCC=$CC +test -z "$LTCFLAGS" && LTCFLAGS=$CFLAGS +test -z "$LD" && LD=ld +test -z "$ac_objext" && ac_objext=o + +func_cc_basename $compiler +cc_basename=$func_cc_basename_result + + +# Only perform the check for file, if the check method requires it +test -z "$MAGIC_CMD" && MAGIC_CMD=file +case $deplibs_check_method in +file_magic*) + if test "$file_magic_cmd" = '$MAGIC_CMD'; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ac_tool_prefix}file" >&5 +$as_echo_n "checking for ${ac_tool_prefix}file... " >&6; } +if ${lt_cv_path_MAGIC_CMD+:} false; then : + $as_echo_n "(cached) " >&6 +else + case $MAGIC_CMD in +[\\/*] | ?:[\\/]*) + lt_cv_path_MAGIC_CMD=$MAGIC_CMD # Let the user override the test with a path. + ;; +*) + lt_save_MAGIC_CMD=$MAGIC_CMD + lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR + ac_dummy="/usr/bin$PATH_SEPARATOR$PATH" + for ac_dir in $ac_dummy; do + IFS=$lt_save_ifs + test -z "$ac_dir" && ac_dir=. + if test -f "$ac_dir/${ac_tool_prefix}file"; then + lt_cv_path_MAGIC_CMD=$ac_dir/"${ac_tool_prefix}file" + if test -n "$file_magic_test_file"; then + case $deplibs_check_method in + "file_magic "*) + file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"` + MAGIC_CMD=$lt_cv_path_MAGIC_CMD + if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null | + $EGREP "$file_magic_regex" > /dev/null; then + : + else + cat <<_LT_EOF 1>&2 + +*** Warning: the command libtool uses to detect shared libraries, +*** $file_magic_cmd, produces output that libtool cannot recognize. +*** The result is that libtool may fail to recognize shared libraries +*** as such. This will affect the creation of libtool libraries that +*** depend on shared libraries, but programs linked with such libtool +*** libraries will work regardless of this problem. Nevertheless, you +*** may want to report the problem to your system manager and/or to +*** bug-libtool@gnu.org + +_LT_EOF + fi ;; + esac + fi + break + fi + done + IFS=$lt_save_ifs + MAGIC_CMD=$lt_save_MAGIC_CMD + ;; +esac +fi + +MAGIC_CMD=$lt_cv_path_MAGIC_CMD +if test -n "$MAGIC_CMD"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5 +$as_echo "$MAGIC_CMD" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + + + +if test -z "$lt_cv_path_MAGIC_CMD"; then + if test -n "$ac_tool_prefix"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for file" >&5 +$as_echo_n "checking for file... " >&6; } +if ${lt_cv_path_MAGIC_CMD+:} false; then : + $as_echo_n "(cached) " >&6 +else + case $MAGIC_CMD in +[\\/*] | ?:[\\/]*) + lt_cv_path_MAGIC_CMD=$MAGIC_CMD # Let the user override the test with a path. + ;; +*) + lt_save_MAGIC_CMD=$MAGIC_CMD + lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR + ac_dummy="/usr/bin$PATH_SEPARATOR$PATH" + for ac_dir in $ac_dummy; do + IFS=$lt_save_ifs + test -z "$ac_dir" && ac_dir=. + if test -f "$ac_dir/file"; then + lt_cv_path_MAGIC_CMD=$ac_dir/"file" + if test -n "$file_magic_test_file"; then + case $deplibs_check_method in + "file_magic "*) + file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"` + MAGIC_CMD=$lt_cv_path_MAGIC_CMD + if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null | + $EGREP "$file_magic_regex" > /dev/null; then + : + else + cat <<_LT_EOF 1>&2 + +*** Warning: the command libtool uses to detect shared libraries, +*** $file_magic_cmd, produces output that libtool cannot recognize. +*** The result is that libtool may fail to recognize shared libraries +*** as such. This will affect the creation of libtool libraries that +*** depend on shared libraries, but programs linked with such libtool +*** libraries will work regardless of this problem. Nevertheless, you +*** may want to report the problem to your system manager and/or to +*** bug-libtool@gnu.org + +_LT_EOF + fi ;; + esac + fi + break + fi + done + IFS=$lt_save_ifs + MAGIC_CMD=$lt_save_MAGIC_CMD + ;; +esac +fi + +MAGIC_CMD=$lt_cv_path_MAGIC_CMD +if test -n "$MAGIC_CMD"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5 +$as_echo "$MAGIC_CMD" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + else + MAGIC_CMD=: + fi +fi + + fi + ;; +esac + +# Use C for the default configuration in the libtool script + +lt_save_CC=$CC +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + +# Source file extension for C test sources. +ac_ext=c + +# Object file extension for compiled C test sources. +objext=o +objext=$objext + +# Code to be used in simple compile tests +lt_simple_compile_test_code="int some_variable = 0;" + +# Code to be used in simple link tests +lt_simple_link_test_code='int main(){return(0);}' + + + + + + + +# If no C compiler was specified, use CC. +LTCC=${LTCC-"$CC"} + +# If no C compiler flags were specified, use CFLAGS. +LTCFLAGS=${LTCFLAGS-"$CFLAGS"} + +# Allow CC to be a program name with arguments. +compiler=$CC + +# Save the default compiler, since it gets overwritten when the other +# tags are being tested, and _LT_TAGVAR(compiler, []) is a NOP. +compiler_DEFAULT=$CC + +# save warnings/boilerplate of simple test code +ac_outfile=conftest.$ac_objext +echo "$lt_simple_compile_test_code" >conftest.$ac_ext +eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err +_lt_compiler_boilerplate=`cat conftest.err` +$RM conftest* + +ac_outfile=conftest.$ac_objext +echo "$lt_simple_link_test_code" >conftest.$ac_ext +eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err +_lt_linker_boilerplate=`cat conftest.err` +$RM -r conftest* + + +## CAVEAT EMPTOR: +## There is no encapsulation within the following macros, do not change +## the running order or otherwise move them around unless you know exactly +## what you are doing... +if test -n "$compiler"; then + +lt_prog_compiler_no_builtin_flag= + +if test yes = "$GCC"; then + case $cc_basename in + nvcc*) + lt_prog_compiler_no_builtin_flag=' -Xcompiler -fno-builtin' ;; + *) + lt_prog_compiler_no_builtin_flag=' -fno-builtin' ;; + esac + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -fno-rtti -fno-exceptions" >&5 +$as_echo_n "checking if $compiler supports -fno-rtti -fno-exceptions... " >&6; } +if ${lt_cv_prog_compiler_rtti_exceptions+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_prog_compiler_rtti_exceptions=no + ac_outfile=conftest.$ac_objext + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + lt_compiler_flag="-fno-rtti -fno-exceptions" ## exclude from sc_useless_quotes_in_assignment + # Insert the option either (1) after the last *FLAGS variable, or + # (2) before a word containing "conftest.", or (3) at the end. + # Note that $ac_compile itself does not contain backslashes and begins + # with a dollar sign (not a hyphen), so the echo should work correctly. + # The option is referenced via a variable to avoid confusing sed. + lt_compile=`echo "$ac_compile" | $SED \ + -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ + -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \ + -e 's:$: $lt_compiler_flag:'` + (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5) + (eval "$lt_compile" 2>conftest.err) + ac_status=$? + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + if (exit $ac_status) && test -s "$ac_outfile"; then + # The compiler can only warn and ignore the option if not recognized + # So say no if there are warnings other than the usual output. + $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp + $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2 + if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then + lt_cv_prog_compiler_rtti_exceptions=yes + fi + fi + $RM conftest* + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_rtti_exceptions" >&5 +$as_echo "$lt_cv_prog_compiler_rtti_exceptions" >&6; } + +if test yes = "$lt_cv_prog_compiler_rtti_exceptions"; then + lt_prog_compiler_no_builtin_flag="$lt_prog_compiler_no_builtin_flag -fno-rtti -fno-exceptions" +else + : +fi + +fi + + + + + + + lt_prog_compiler_wl= +lt_prog_compiler_pic= +lt_prog_compiler_static= + + + if test yes = "$GCC"; then + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_static='-static' + + case $host_os in + aix*) + # All AIX code is PIC. + if test ia64 = "$host_cpu"; then + # AIX 5 now supports IA64 processor + lt_prog_compiler_static='-Bstatic' + fi + lt_prog_compiler_pic='-fPIC' + ;; + + amigaos*) + case $host_cpu in + powerpc) + # see comment about AmigaOS4 .so support + lt_prog_compiler_pic='-fPIC' + ;; + m68k) + # FIXME: we need at least 68020 code to build shared libraries, but + # adding the '-m68020' flag to GCC prevents building anything better, + # like '-m68040'. + lt_prog_compiler_pic='-m68020 -resident32 -malways-restore-a4' + ;; + esac + ;; + + beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*) + # PIC is the default for these OSes. + ;; + + mingw* | cygwin* | pw32* | os2* | cegcc*) + # This hack is so that the source file can tell whether it is being + # built for inclusion in a dll (and should export symbols for example). + # Although the cygwin gcc ignores -fPIC, still need this for old-style + # (--disable-auto-import) libraries + lt_prog_compiler_pic='-DDLL_EXPORT' + case $host_os in + os2*) + lt_prog_compiler_static='$wl-static' + ;; + esac + ;; + + darwin* | rhapsody*) + # PIC is the default on this platform + # Common symbols not allowed in MH_DYLIB files + lt_prog_compiler_pic='-fno-common' + ;; + + haiku*) + # PIC is the default for Haiku. + # The "-static" flag exists, but is broken. + lt_prog_compiler_static= + ;; + + hpux*) + # PIC is the default for 64-bit PA HP-UX, but not for 32-bit + # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag + # sets the default TLS model and affects inlining. + case $host_cpu in + hppa*64*) + # +Z the default + ;; + *) + lt_prog_compiler_pic='-fPIC' + ;; + esac + ;; + + interix[3-9]*) + # Interix 3.x gcc -fpic/-fPIC options generate broken code. + # Instead, we relocate shared libraries at runtime. + ;; + + msdosdjgpp*) + # Just because we use GCC doesn't mean we suddenly get shared libraries + # on systems that don't support them. + lt_prog_compiler_can_build_shared=no + enable_shared=no + ;; + + *nto* | *qnx*) + # QNX uses GNU C++, but need to define -shared option too, otherwise + # it will coredump. + lt_prog_compiler_pic='-fPIC -shared' + ;; + + sysv4*MP*) + if test -d /usr/nec; then + lt_prog_compiler_pic=-Kconform_pic + fi + ;; + + *) + lt_prog_compiler_pic='-fPIC' + ;; + esac + + case $cc_basename in + nvcc*) # Cuda Compiler Driver 2.2 + lt_prog_compiler_wl='-Xlinker ' + if test -n "$lt_prog_compiler_pic"; then + lt_prog_compiler_pic="-Xcompiler $lt_prog_compiler_pic" + fi + ;; + esac + else + # PORTME Check for flag to pass linker flags through the system compiler. + case $host_os in + aix*) + lt_prog_compiler_wl='-Wl,' + if test ia64 = "$host_cpu"; then + # AIX 5 now supports IA64 processor + lt_prog_compiler_static='-Bstatic' + else + lt_prog_compiler_static='-bnso -bI:/lib/syscalls.exp' + fi + ;; + + darwin* | rhapsody*) + # PIC is the default on this platform + # Common symbols not allowed in MH_DYLIB files + lt_prog_compiler_pic='-fno-common' + case $cc_basename in + nagfor*) + # NAG Fortran compiler + lt_prog_compiler_wl='-Wl,-Wl,,' + lt_prog_compiler_pic='-PIC' + lt_prog_compiler_static='-Bstatic' + ;; + esac + ;; + + mingw* | cygwin* | pw32* | os2* | cegcc*) + # This hack is so that the source file can tell whether it is being + # built for inclusion in a dll (and should export symbols for example). + lt_prog_compiler_pic='-DDLL_EXPORT' + case $host_os in + os2*) + lt_prog_compiler_static='$wl-static' + ;; + esac + ;; + + hpux9* | hpux10* | hpux11*) + lt_prog_compiler_wl='-Wl,' + # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but + # not for PA HP-UX. + case $host_cpu in + hppa*64*|ia64*) + # +Z the default + ;; + *) + lt_prog_compiler_pic='+Z' + ;; + esac + # Is there a better lt_prog_compiler_static that works with the bundled CC? + lt_prog_compiler_static='$wl-a ${wl}archive' + ;; + + irix5* | irix6* | nonstopux*) + lt_prog_compiler_wl='-Wl,' + # PIC (with -KPIC) is the default. + lt_prog_compiler_static='-non_shared' + ;; + + linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) + case $cc_basename in + # old Intel for x86_64, which still supported -KPIC. + ecc*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-static' + ;; + # icc used to be incompatible with GCC. + # ICC 10 doesn't accept -KPIC any more. + icc* | ifort*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-fPIC' + lt_prog_compiler_static='-static' + ;; + # Lahey Fortran 8.1. + lf95*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='--shared' + lt_prog_compiler_static='--static' + ;; + nagfor*) + # NAG Fortran compiler + lt_prog_compiler_wl='-Wl,-Wl,,' + lt_prog_compiler_pic='-PIC' + lt_prog_compiler_static='-Bstatic' + ;; + tcc*) + # Fabrice Bellard et al's Tiny C Compiler + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-fPIC' + lt_prog_compiler_static='-static' + ;; + pgcc* | pgf77* | pgf90* | pgf95* | pgfortran*) + # Portland Group compilers (*not* the Pentium gcc compiler, + # which looks to be a dead project) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-fpic' + lt_prog_compiler_static='-Bstatic' + ;; + ccc*) + lt_prog_compiler_wl='-Wl,' + # All Alpha code is PIC. + lt_prog_compiler_static='-non_shared' + ;; + xl* | bgxl* | bgf* | mpixl*) + # IBM XL C 8.0/Fortran 10.1, 11.1 on PPC and BlueGene + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-qpic' + lt_prog_compiler_static='-qstaticlink' + ;; + *) + case `$CC -V 2>&1 | sed 5q` in + *Sun\ Ceres\ Fortran* | *Sun*Fortran*\ [1-7].* | *Sun*Fortran*\ 8.[0-3]*) + # Sun Fortran 8.3 passes all unrecognized flags to the linker + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-Bstatic' + lt_prog_compiler_wl='' + ;; + *Sun\ F* | *Sun*Fortran*) + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-Bstatic' + lt_prog_compiler_wl='-Qoption ld ' + ;; + *Sun\ C*) + # Sun C 5.9 + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-Bstatic' + lt_prog_compiler_wl='-Wl,' + ;; + *Intel*\ [CF]*Compiler*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-fPIC' + lt_prog_compiler_static='-static' + ;; + *Portland\ Group*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-fpic' + lt_prog_compiler_static='-Bstatic' + ;; + esac + ;; + esac + ;; + + newsos6) + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-Bstatic' + ;; + + *nto* | *qnx*) + # QNX uses GNU C++, but need to define -shared option too, otherwise + # it will coredump. + lt_prog_compiler_pic='-fPIC -shared' + ;; + + osf3* | osf4* | osf5*) + lt_prog_compiler_wl='-Wl,' + # All OSF/1 code is PIC. + lt_prog_compiler_static='-non_shared' + ;; + + rdos*) + lt_prog_compiler_static='-non_shared' + ;; + + solaris*) + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-Bstatic' + case $cc_basename in + f77* | f90* | f95* | sunf77* | sunf90* | sunf95*) + lt_prog_compiler_wl='-Qoption ld ';; + *) + lt_prog_compiler_wl='-Wl,';; + esac + ;; + + sunos4*) + lt_prog_compiler_wl='-Qoption ld ' + lt_prog_compiler_pic='-PIC' + lt_prog_compiler_static='-Bstatic' + ;; + + sysv4 | sysv4.2uw2* | sysv4.3*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-Bstatic' + ;; + + sysv4*MP*) + if test -d /usr/nec; then + lt_prog_compiler_pic='-Kconform_pic' + lt_prog_compiler_static='-Bstatic' + fi + ;; + + sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-Bstatic' + ;; + + unicos*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_can_build_shared=no + ;; + + uts4*) + lt_prog_compiler_pic='-pic' + lt_prog_compiler_static='-Bstatic' + ;; + + *) + lt_prog_compiler_can_build_shared=no + ;; + esac + fi + +case $host_os in + # For platforms that do not support PIC, -DPIC is meaningless: + *djgpp*) + lt_prog_compiler_pic= + ;; + *) + lt_prog_compiler_pic="$lt_prog_compiler_pic -DPIC" + ;; +esac + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $compiler option to produce PIC" >&5 +$as_echo_n "checking for $compiler option to produce PIC... " >&6; } +if ${lt_cv_prog_compiler_pic+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_prog_compiler_pic=$lt_prog_compiler_pic +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic" >&5 +$as_echo "$lt_cv_prog_compiler_pic" >&6; } +lt_prog_compiler_pic=$lt_cv_prog_compiler_pic + +# +# Check to make sure the PIC flag actually works. +# +if test -n "$lt_prog_compiler_pic"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler PIC flag $lt_prog_compiler_pic works" >&5 +$as_echo_n "checking if $compiler PIC flag $lt_prog_compiler_pic works... " >&6; } +if ${lt_cv_prog_compiler_pic_works+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_prog_compiler_pic_works=no + ac_outfile=conftest.$ac_objext + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + lt_compiler_flag="$lt_prog_compiler_pic -DPIC" ## exclude from sc_useless_quotes_in_assignment + # Insert the option either (1) after the last *FLAGS variable, or + # (2) before a word containing "conftest.", or (3) at the end. + # Note that $ac_compile itself does not contain backslashes and begins + # with a dollar sign (not a hyphen), so the echo should work correctly. + # The option is referenced via a variable to avoid confusing sed. + lt_compile=`echo "$ac_compile" | $SED \ + -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ + -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \ + -e 's:$: $lt_compiler_flag:'` + (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5) + (eval "$lt_compile" 2>conftest.err) + ac_status=$? + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + if (exit $ac_status) && test -s "$ac_outfile"; then + # The compiler can only warn and ignore the option if not recognized + # So say no if there are warnings other than the usual output. + $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp + $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2 + if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then + lt_cv_prog_compiler_pic_works=yes + fi + fi + $RM conftest* + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_works" >&5 +$as_echo "$lt_cv_prog_compiler_pic_works" >&6; } + +if test yes = "$lt_cv_prog_compiler_pic_works"; then + case $lt_prog_compiler_pic in + "" | " "*) ;; + *) lt_prog_compiler_pic=" $lt_prog_compiler_pic" ;; + esac +else + lt_prog_compiler_pic= + lt_prog_compiler_can_build_shared=no +fi + +fi + + + + + + + + + + + +# +# Check to make sure the static flag actually works. +# +wl=$lt_prog_compiler_wl eval lt_tmp_static_flag=\"$lt_prog_compiler_static\" +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler static flag $lt_tmp_static_flag works" >&5 +$as_echo_n "checking if $compiler static flag $lt_tmp_static_flag works... " >&6; } +if ${lt_cv_prog_compiler_static_works+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_prog_compiler_static_works=no + save_LDFLAGS=$LDFLAGS + LDFLAGS="$LDFLAGS $lt_tmp_static_flag" + echo "$lt_simple_link_test_code" > conftest.$ac_ext + if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then + # The linker can only warn and ignore the option if not recognized + # So say no if there are warnings + if test -s conftest.err; then + # Append any errors to the config.log. + cat conftest.err 1>&5 + $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp + $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2 + if diff conftest.exp conftest.er2 >/dev/null; then + lt_cv_prog_compiler_static_works=yes + fi + else + lt_cv_prog_compiler_static_works=yes + fi + fi + $RM -r conftest* + LDFLAGS=$save_LDFLAGS + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_static_works" >&5 +$as_echo "$lt_cv_prog_compiler_static_works" >&6; } + +if test yes = "$lt_cv_prog_compiler_static_works"; then + : +else + lt_prog_compiler_static= +fi + + + + + + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5 +$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; } +if ${lt_cv_prog_compiler_c_o+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_prog_compiler_c_o=no + $RM -r conftest 2>/dev/null + mkdir conftest + cd conftest + mkdir out + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + + lt_compiler_flag="-o out/conftest2.$ac_objext" + # Insert the option either (1) after the last *FLAGS variable, or + # (2) before a word containing "conftest.", or (3) at the end. + # Note that $ac_compile itself does not contain backslashes and begins + # with a dollar sign (not a hyphen), so the echo should work correctly. + lt_compile=`echo "$ac_compile" | $SED \ + -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ + -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \ + -e 's:$: $lt_compiler_flag:'` + (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5) + (eval "$lt_compile" 2>out/conftest.err) + ac_status=$? + cat out/conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + if (exit $ac_status) && test -s out/conftest2.$ac_objext + then + # The compiler can only warn and ignore the option if not recognized + # So say no if there are warnings + $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp + $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2 + if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then + lt_cv_prog_compiler_c_o=yes + fi + fi + chmod u+w . 2>&5 + $RM conftest* + # SGI C++ compiler will create directory out/ii_files/ for + # template instantiation + test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files + $RM out/* && rmdir out + cd .. + $RM -r conftest + $RM conftest* + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o" >&5 +$as_echo "$lt_cv_prog_compiler_c_o" >&6; } + + + + + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5 +$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; } +if ${lt_cv_prog_compiler_c_o+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_prog_compiler_c_o=no + $RM -r conftest 2>/dev/null + mkdir conftest + cd conftest + mkdir out + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + + lt_compiler_flag="-o out/conftest2.$ac_objext" + # Insert the option either (1) after the last *FLAGS variable, or + # (2) before a word containing "conftest.", or (3) at the end. + # Note that $ac_compile itself does not contain backslashes and begins + # with a dollar sign (not a hyphen), so the echo should work correctly. + lt_compile=`echo "$ac_compile" | $SED \ + -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ + -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \ + -e 's:$: $lt_compiler_flag:'` + (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5) + (eval "$lt_compile" 2>out/conftest.err) + ac_status=$? + cat out/conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + if (exit $ac_status) && test -s out/conftest2.$ac_objext + then + # The compiler can only warn and ignore the option if not recognized + # So say no if there are warnings + $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp + $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2 + if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then + lt_cv_prog_compiler_c_o=yes + fi + fi + chmod u+w . 2>&5 + $RM conftest* + # SGI C++ compiler will create directory out/ii_files/ for + # template instantiation + test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files + $RM out/* && rmdir out + cd .. + $RM -r conftest + $RM conftest* + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o" >&5 +$as_echo "$lt_cv_prog_compiler_c_o" >&6; } + + + + +hard_links=nottested +if test no = "$lt_cv_prog_compiler_c_o" && test no != "$need_locks"; then + # do not overwrite the value of need_locks provided by the user + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if we can lock with hard links" >&5 +$as_echo_n "checking if we can lock with hard links... " >&6; } + hard_links=yes + $RM conftest* + ln conftest.a conftest.b 2>/dev/null && hard_links=no + touch conftest.a + ln conftest.a conftest.b 2>&5 || hard_links=no + ln conftest.a conftest.b 2>/dev/null && hard_links=no + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $hard_links" >&5 +$as_echo "$hard_links" >&6; } + if test no = "$hard_links"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: '$CC' does not support '-c -o', so 'make -j' may be unsafe" >&5 +$as_echo "$as_me: WARNING: '$CC' does not support '-c -o', so 'make -j' may be unsafe" >&2;} + need_locks=warn + fi +else + need_locks=no +fi + + + + + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $compiler linker ($LD) supports shared libraries" >&5 +$as_echo_n "checking whether the $compiler linker ($LD) supports shared libraries... " >&6; } + + runpath_var= + allow_undefined_flag= + always_export_symbols=no + archive_cmds= + archive_expsym_cmds= + compiler_needs_object=no + enable_shared_with_static_runtimes=no + export_dynamic_flag_spec= + export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols' + hardcode_automatic=no + hardcode_direct=no + hardcode_direct_absolute=no + hardcode_libdir_flag_spec= + hardcode_libdir_separator= + hardcode_minus_L=no + hardcode_shlibpath_var=unsupported + inherit_rpath=no + link_all_deplibs=unknown + module_cmds= + module_expsym_cmds= + old_archive_from_new_cmds= + old_archive_from_expsyms_cmds= + thread_safe_flag_spec= + whole_archive_flag_spec= + # include_expsyms should be a list of space-separated symbols to be *always* + # included in the symbol list + include_expsyms= + # exclude_expsyms can be an extended regexp of symbols to exclude + # it will be wrapped by ' (' and ')$', so one must not match beginning or + # end of line. Example: 'a|bc|.*d.*' will exclude the symbols 'a' and 'bc', + # as well as any symbol that contains 'd'. + exclude_expsyms='_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*' + # Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out + # platforms (ab)use it in PIC code, but their linkers get confused if + # the symbol is explicitly referenced. Since portable code cannot + # rely on this symbol name, it's probably fine to never include it in + # preloaded symbol tables. + # Exclude shared library initialization/finalization symbols. + extract_expsyms_cmds= + + case $host_os in + cygwin* | mingw* | pw32* | cegcc*) + # FIXME: the MSVC++ port hasn't been tested in a loooong time + # When not using gcc, we currently assume that we are using + # Microsoft Visual C++. + if test yes != "$GCC"; then + with_gnu_ld=no + fi + ;; + interix*) + # we just hope/assume this is gcc and not c89 (= MSVC++) + with_gnu_ld=yes + ;; + openbsd* | bitrig*) + with_gnu_ld=no + ;; + esac + + ld_shlibs=yes + + # On some targets, GNU ld is compatible enough with the native linker + # that we're better off using the native interface for both. + lt_use_gnu_ld_interface=no + if test yes = "$with_gnu_ld"; then + case $host_os in + aix*) + # The AIX port of GNU ld has always aspired to compatibility + # with the native linker. However, as the warning in the GNU ld + # block says, versions before 2.19.5* couldn't really create working + # shared libraries, regardless of the interface used. + case `$LD -v 2>&1` in + *\ \(GNU\ Binutils\)\ 2.19.5*) ;; + *\ \(GNU\ Binutils\)\ 2.[2-9]*) ;; + *\ \(GNU\ Binutils\)\ [3-9]*) ;; + *) + lt_use_gnu_ld_interface=yes + ;; + esac + ;; + *) + lt_use_gnu_ld_interface=yes + ;; + esac + fi + + if test yes = "$lt_use_gnu_ld_interface"; then + # If archive_cmds runs LD, not CC, wlarc should be empty + wlarc='$wl' + + # Set some defaults for GNU ld with shared library support. These + # are reset later if shared libraries are not supported. Putting them + # here allows them to be overridden if necessary. + runpath_var=LD_RUN_PATH + hardcode_libdir_flag_spec='$wl-rpath $wl$libdir' + export_dynamic_flag_spec='$wl--export-dynamic' + # ancient GNU ld didn't support --whole-archive et. al. + if $LD --help 2>&1 | $GREP 'no-whole-archive' > /dev/null; then + whole_archive_flag_spec=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive' + else + whole_archive_flag_spec= + fi + supports_anon_versioning=no + case `$LD -v | $SED -e 's/(^)\+)\s\+//' 2>&1` in + *GNU\ gold*) supports_anon_versioning=yes ;; + *\ [01].* | *\ 2.[0-9].* | *\ 2.10.*) ;; # catch versions < 2.11 + *\ 2.11.93.0.2\ *) supports_anon_versioning=yes ;; # RH7.3 ... + *\ 2.11.92.0.12\ *) supports_anon_versioning=yes ;; # Mandrake 8.2 ... + *\ 2.11.*) ;; # other 2.11 versions + *) supports_anon_versioning=yes ;; + esac + + # See if GNU ld supports shared libraries. + case $host_os in + aix[3-9]*) + # On AIX/PPC, the GNU linker is very broken + if test ia64 != "$host_cpu"; then + ld_shlibs=no + cat <<_LT_EOF 1>&2 + +*** Warning: the GNU linker, at least up to release 2.19, is reported +*** to be unable to reliably create shared libraries on AIX. +*** Therefore, libtool is disabling shared libraries support. If you +*** really care for shared libraries, you may want to install binutils +*** 2.20 or above, or modify your PATH so that a non-GNU linker is found. +*** You will then need to restart the configuration process. + +_LT_EOF + fi + ;; + + amigaos*) + case $host_cpu in + powerpc) + # see comment about AmigaOS4 .so support + archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + archive_expsym_cmds='' + ;; + m68k) + archive_cmds='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)' + hardcode_libdir_flag_spec='-L$libdir' + hardcode_minus_L=yes + ;; + esac + ;; + + beos*) + if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + allow_undefined_flag=unsupported + # Joseph Beckenbach says some releases of gcc + # support --undefined. This deserves some investigation. FIXME + archive_cmds='$CC -nostart $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + else + ld_shlibs=no + fi + ;; + + cygwin* | mingw* | pw32* | cegcc*) + # _LT_TAGVAR(hardcode_libdir_flag_spec, ) is actually meaningless, + # as there is no search path for DLLs. + hardcode_libdir_flag_spec='-L$libdir' + export_dynamic_flag_spec='$wl--export-all-symbols' + allow_undefined_flag=unsupported + always_export_symbols=no + enable_shared_with_static_runtimes=yes + export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1 DATA/;s/^.*[ ]__nm__\([^ ]*\)[ ][^ ]*/\1 DATA/;/^I[ ]/d;/^[AITW][ ]/s/.* //'\'' | sort | uniq > $export_symbols' + exclude_expsyms='[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname' + + if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then + archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib' + # If the export-symbols file already is a .def file, use it as + # is; otherwise, prepend EXPORTS... + archive_expsym_cmds='if test DEF = "`$SED -n -e '\''s/^[ ]*//'\'' -e '\''/^\(;.*\)*$/d'\'' -e '\''s/^\(EXPORTS\|LIBRARY\)\([ ].*\)*$/DEF/p'\'' -e q $export_symbols`" ; then + cp $export_symbols $output_objdir/$soname.def; + else + echo EXPORTS > $output_objdir/$soname.def; + cat $export_symbols >> $output_objdir/$soname.def; + fi~ + $CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib' + else + ld_shlibs=no + fi + ;; + + haiku*) + archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + link_all_deplibs=yes + ;; + + os2*) + hardcode_libdir_flag_spec='-L$libdir' + hardcode_minus_L=yes + allow_undefined_flag=unsupported + shrext_cmds=.dll + archive_cmds='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~ + $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~ + $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~ + $ECHO EXPORTS >> $output_objdir/$libname.def~ + emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~ + $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ + emximp -o $lib $output_objdir/$libname.def' + archive_expsym_cmds='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~ + $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~ + $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~ + $ECHO EXPORTS >> $output_objdir/$libname.def~ + prefix_cmds="$SED"~ + if test EXPORTS = "`$SED 1q $export_symbols`"; then + prefix_cmds="$prefix_cmds -e 1d"; + fi~ + prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~ + cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~ + $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ + emximp -o $lib $output_objdir/$libname.def' + old_archive_From_new_cmds='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def' + enable_shared_with_static_runtimes=yes + ;; + + interix[3-9]*) + hardcode_direct=no + hardcode_shlibpath_var=no + hardcode_libdir_flag_spec='$wl-rpath,$libdir' + export_dynamic_flag_spec='$wl-E' + # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc. + # Instead, shared libraries are loaded at an image base (0x10000000 by + # default) and relocated if they conflict, which is a slow very memory + # consuming and fragmenting process. To avoid this, we pick a random, + # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link + # time. Moving up from 0x10000000 also allows more sbrk(2) space. + archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib' + archive_expsym_cmds='sed "s|^|_|" $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--retain-symbols-file,$output_objdir/$soname.expsym $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib' + ;; + + gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu) + tmp_diet=no + if test linux-dietlibc = "$host_os"; then + case $cc_basename in + diet\ *) tmp_diet=yes;; # linux-dietlibc with static linking (!diet-dyn) + esac + fi + if $LD --help 2>&1 | $EGREP ': supported targets:.* elf' > /dev/null \ + && test no = "$tmp_diet" + then + tmp_addflag=' $pic_flag' + tmp_sharedflag='-shared' + case $cc_basename,$host_cpu in + pgcc*) # Portland Group C compiler + whole_archive_flag_spec='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive' + tmp_addflag=' $pic_flag' + ;; + pgf77* | pgf90* | pgf95* | pgfortran*) + # Portland Group f77 and f90 compilers + whole_archive_flag_spec='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive' + tmp_addflag=' $pic_flag -Mnomain' ;; + ecc*,ia64* | icc*,ia64*) # Intel C compiler on ia64 + tmp_addflag=' -i_dynamic' ;; + efc*,ia64* | ifort*,ia64*) # Intel Fortran compiler on ia64 + tmp_addflag=' -i_dynamic -nofor_main' ;; + ifc* | ifort*) # Intel Fortran compiler + tmp_addflag=' -nofor_main' ;; + lf95*) # Lahey Fortran 8.1 + whole_archive_flag_spec= + tmp_sharedflag='--shared' ;; + nagfor*) # NAGFOR 5.3 + tmp_sharedflag='-Wl,-shared' ;; + xl[cC]* | bgxl[cC]* | mpixl[cC]*) # IBM XL C 8.0 on PPC (deal with xlf below) + tmp_sharedflag='-qmkshrobj' + tmp_addflag= ;; + nvcc*) # Cuda Compiler Driver 2.2 + whole_archive_flag_spec='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive' + compiler_needs_object=yes + ;; + esac + case `$CC -V 2>&1 | sed 5q` in + *Sun\ C*) # Sun C 5.9 + whole_archive_flag_spec='$wl--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive' + compiler_needs_object=yes + tmp_sharedflag='-G' ;; + *Sun\ F*) # Sun Fortran 8.3 + tmp_sharedflag='-G' ;; + esac + archive_cmds='$CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + + if test yes = "$supports_anon_versioning"; then + archive_expsym_cmds='echo "{ global:" > $output_objdir/$libname.ver~ + cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~ + echo "local: *; };" >> $output_objdir/$libname.ver~ + $CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$output_objdir/$libname.ver -o $lib' + fi + + case $cc_basename in + tcc*) + export_dynamic_flag_spec='-rdynamic' + ;; + xlf* | bgf* | bgxlf* | mpixlf*) + # IBM XL Fortran 10.1 on PPC cannot create shared libs itself + whole_archive_flag_spec='--whole-archive$convenience --no-whole-archive' + hardcode_libdir_flag_spec='$wl-rpath $wl$libdir' + archive_cmds='$LD -shared $libobjs $deplibs $linker_flags -soname $soname -o $lib' + if test yes = "$supports_anon_versioning"; then + archive_expsym_cmds='echo "{ global:" > $output_objdir/$libname.ver~ + cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~ + echo "local: *; };" >> $output_objdir/$libname.ver~ + $LD -shared $libobjs $deplibs $linker_flags -soname $soname -version-script $output_objdir/$libname.ver -o $lib' + fi + ;; + esac + else + ld_shlibs=no + fi + ;; + + netbsd*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + archive_cmds='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib' + wlarc= + else + archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + fi + ;; + + solaris*) + if $LD -v 2>&1 | $GREP 'BFD 2\.8' > /dev/null; then + ld_shlibs=no + cat <<_LT_EOF 1>&2 + +*** Warning: The releases 2.8.* of the GNU linker cannot reliably +*** create shared libraries on Solaris systems. Therefore, libtool +*** is disabling shared libraries support. We urge you to upgrade GNU +*** binutils to release 2.9.1 or newer. Another option is to modify +*** your PATH or compiler configuration so that the native linker is +*** used, and then restart. + +_LT_EOF + elif $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + else + ld_shlibs=no + fi + ;; + + sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*) + case `$LD -v 2>&1` in + *\ [01].* | *\ 2.[0-9].* | *\ 2.1[0-5].*) + ld_shlibs=no + cat <<_LT_EOF 1>&2 + +*** Warning: Releases of the GNU linker prior to 2.16.91.0.3 cannot +*** reliably create shared libraries on SCO systems. Therefore, libtool +*** is disabling shared libraries support. We urge you to upgrade GNU +*** binutils to release 2.16.91.0.3 or newer. Another option is to modify +*** your PATH or compiler configuration so that the native linker is +*** used, and then restart. + +_LT_EOF + ;; + *) + # For security reasons, it is highly recommended that you always + # use absolute paths for naming shared libraries, and exclude the + # DT_RUNPATH tag from executables and libraries. But doing so + # requires that you compile everything twice, which is a pain. + if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + hardcode_libdir_flag_spec='$wl-rpath $wl$libdir' + archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + else + ld_shlibs=no + fi + ;; + esac + ;; + + sunos4*) + archive_cmds='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags' + wlarc= + hardcode_direct=yes + hardcode_shlibpath_var=no + ;; + + *) + if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + else + ld_shlibs=no + fi + ;; + esac + + if test no = "$ld_shlibs"; then + runpath_var= + hardcode_libdir_flag_spec= + export_dynamic_flag_spec= + whole_archive_flag_spec= + fi + else + # PORTME fill in a description of your system's linker (not GNU ld) + case $host_os in + aix3*) + allow_undefined_flag=unsupported + always_export_symbols=yes + archive_expsym_cmds='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname' + # Note: this linker hardcodes the directories in LIBPATH if there + # are no directories specified by -L. + hardcode_minus_L=yes + if test yes = "$GCC" && test -z "$lt_prog_compiler_static"; then + # Neither direct hardcoding nor static linking is supported with a + # broken collect2. + hardcode_direct=unsupported + fi + ;; + + aix[4-9]*) + if test ia64 = "$host_cpu"; then + # On IA64, the linker does run time linking by default, so we don't + # have to do anything special. + aix_use_runtimelinking=no + exp_sym_flag='-Bexport' + no_entry_flag= + else + # If we're using GNU nm, then we don't want the "-C" option. + # -C means demangle to GNU nm, but means don't demangle to AIX nm. + # Without the "-l" option, or with the "-B" option, AIX nm treats + # weak defined symbols like other global defined symbols, whereas + # GNU nm marks them as "W". + # While the 'weak' keyword is ignored in the Export File, we need + # it in the Import File for the 'aix-soname' feature, so we have + # to replace the "-B" option with "-P" for AIX nm. + if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then + export_symbols_cmds='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && (substr(\$ 3,1,1) != ".")) { if (\$ 2 == "W") { print \$ 3 " weak" } else { print \$ 3 } } }'\'' | sort -u > $export_symbols' + else + export_symbols_cmds='`func_echo_all $NM | $SED -e '\''s/B\([^B]*\)$/P\1/'\''` -PCpgl $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) && (substr(\$ 1,1,1) != ".")) { if ((\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) { print \$ 1 " weak" } else { print \$ 1 } } }'\'' | sort -u > $export_symbols' + fi + aix_use_runtimelinking=no + + # Test if we are trying to use run time linking or normal + # AIX style linking. If -brtl is somewhere in LDFLAGS, we + # have runtime linking enabled, and use it for executables. + # For shared libraries, we enable/disable runtime linking + # depending on the kind of the shared library created - + # when "with_aix_soname,aix_use_runtimelinking" is: + # "aix,no" lib.a(lib.so.V) shared, rtl:no, for executables + # "aix,yes" lib.so shared, rtl:yes, for executables + # lib.a static archive + # "both,no" lib.so.V(shr.o) shared, rtl:yes + # lib.a(lib.so.V) shared, rtl:no, for executables + # "both,yes" lib.so.V(shr.o) shared, rtl:yes, for executables + # lib.a(lib.so.V) shared, rtl:no + # "svr4,*" lib.so.V(shr.o) shared, rtl:yes, for executables + # lib.a static archive + case $host_os in aix4.[23]|aix4.[23].*|aix[5-9]*) + for ld_flag in $LDFLAGS; do + if (test x-brtl = "x$ld_flag" || test x-Wl,-brtl = "x$ld_flag"); then + aix_use_runtimelinking=yes + break + fi + done + if test svr4,no = "$with_aix_soname,$aix_use_runtimelinking"; then + # With aix-soname=svr4, we create the lib.so.V shared archives only, + # so we don't have lib.a shared libs to link our executables. + # We have to force runtime linking in this case. + aix_use_runtimelinking=yes + LDFLAGS="$LDFLAGS -Wl,-brtl" + fi + ;; + esac + + exp_sym_flag='-bexport' + no_entry_flag='-bnoentry' + fi + + # When large executables or shared objects are built, AIX ld can + # have problems creating the table of contents. If linking a library + # or program results in "error TOC overflow" add -mminimal-toc to + # CXXFLAGS/CFLAGS for g++/gcc. In the cases where that is not + # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS. + + archive_cmds='' + hardcode_direct=yes + hardcode_direct_absolute=yes + hardcode_libdir_separator=':' + link_all_deplibs=yes + file_list_spec='$wl-f,' + case $with_aix_soname,$aix_use_runtimelinking in + aix,*) ;; # traditional, no import file + svr4,* | *,yes) # use import file + # The Import File defines what to hardcode. + hardcode_direct=no + hardcode_direct_absolute=no + ;; + esac + + if test yes = "$GCC"; then + case $host_os in aix4.[012]|aix4.[012].*) + # We only want to do this on AIX 4.2 and lower, the check + # below for broken collect2 doesn't work under 4.3+ + collect2name=`$CC -print-prog-name=collect2` + if test -f "$collect2name" && + strings "$collect2name" | $GREP resolve_lib_name >/dev/null + then + # We have reworked collect2 + : + else + # We have old collect2 + hardcode_direct=unsupported + # It fails to find uninstalled libraries when the uninstalled + # path is not listed in the libpath. Setting hardcode_minus_L + # to unsupported forces relinking + hardcode_minus_L=yes + hardcode_libdir_flag_spec='-L$libdir' + hardcode_libdir_separator= + fi + ;; + esac + shared_flag='-shared' + if test yes = "$aix_use_runtimelinking"; then + shared_flag="$shared_flag "'$wl-G' + fi + # Need to ensure runtime linking is disabled for the traditional + # shared library, or the linker may eventually find shared libraries + # /with/ Import File - we do not want to mix them. + shared_flag_aix='-shared' + shared_flag_svr4='-shared $wl-G' + else + # not using gcc + if test ia64 = "$host_cpu"; then + # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release + # chokes on -Wl,-G. The following line is correct: + shared_flag='-G' + else + if test yes = "$aix_use_runtimelinking"; then + shared_flag='$wl-G' + else + shared_flag='$wl-bM:SRE' + fi + shared_flag_aix='$wl-bM:SRE' + shared_flag_svr4='$wl-G' + fi + fi + + export_dynamic_flag_spec='$wl-bexpall' + # It seems that -bexpall does not export symbols beginning with + # underscore (_), so it is better to generate a list of symbols to export. + always_export_symbols=yes + if test aix,yes = "$with_aix_soname,$aix_use_runtimelinking"; then + # Warning - without using the other runtime loading flags (-brtl), + # -berok will link without error, but may produce a broken library. + allow_undefined_flag='-berok' + # Determine the default libpath from the value encoded in an + # empty executable. + if test set = "${lt_cv_aix_libpath+set}"; then + aix_libpath=$lt_cv_aix_libpath +else + if ${lt_cv_aix_libpath_+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + + lt_aix_libpath_sed=' + /Import File Strings/,/^$/ { + /^0/ { + s/^0 *\([^ ]*\) *$/\1/ + p + } + }' + lt_cv_aix_libpath_=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` + # Check for a 64-bit object if we didn't find anything. + if test -z "$lt_cv_aix_libpath_"; then + lt_cv_aix_libpath_=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` + fi +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + if test -z "$lt_cv_aix_libpath_"; then + lt_cv_aix_libpath_=/usr/lib:/lib + fi + +fi + + aix_libpath=$lt_cv_aix_libpath_ +fi + + hardcode_libdir_flag_spec='$wl-blibpath:$libdir:'"$aix_libpath" + archive_expsym_cmds='$CC -o $output_objdir/$soname $libobjs $deplibs $wl'$no_entry_flag' $compiler_flags `if test -n "$allow_undefined_flag"; then func_echo_all "$wl$allow_undefined_flag"; else :; fi` $wl'$exp_sym_flag:\$export_symbols' '$shared_flag + else + if test ia64 = "$host_cpu"; then + hardcode_libdir_flag_spec='$wl-R $libdir:/usr/lib:/lib' + allow_undefined_flag="-z nodefs" + archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\$wl$no_entry_flag"' $compiler_flags $wl$allow_undefined_flag '"\$wl$exp_sym_flag:\$export_symbols" + else + # Determine the default libpath from the value encoded in an + # empty executable. + if test set = "${lt_cv_aix_libpath+set}"; then + aix_libpath=$lt_cv_aix_libpath +else + if ${lt_cv_aix_libpath_+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + + lt_aix_libpath_sed=' + /Import File Strings/,/^$/ { + /^0/ { + s/^0 *\([^ ]*\) *$/\1/ + p + } + }' + lt_cv_aix_libpath_=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` + # Check for a 64-bit object if we didn't find anything. + if test -z "$lt_cv_aix_libpath_"; then + lt_cv_aix_libpath_=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` + fi +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + if test -z "$lt_cv_aix_libpath_"; then + lt_cv_aix_libpath_=/usr/lib:/lib + fi + +fi + + aix_libpath=$lt_cv_aix_libpath_ +fi + + hardcode_libdir_flag_spec='$wl-blibpath:$libdir:'"$aix_libpath" + # Warning - without using the other run time loading flags, + # -berok will link without error, but may produce a broken library. + no_undefined_flag=' $wl-bernotok' + allow_undefined_flag=' $wl-berok' + if test yes = "$with_gnu_ld"; then + # We only use this code for GNU lds that support --whole-archive. + whole_archive_flag_spec='$wl--whole-archive$convenience $wl--no-whole-archive' + else + # Exported symbols can be pulled into shared objects from archives + whole_archive_flag_spec='$convenience' + fi + archive_cmds_need_lc=yes + archive_expsym_cmds='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d' + # -brtl affects multiple linker settings, -berok does not and is overridden later + compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([, ]\\)%-berok\\1%g"`' + if test svr4 != "$with_aix_soname"; then + # This is similar to how AIX traditionally builds its shared libraries. + archive_expsym_cmds="$archive_expsym_cmds"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname' + fi + if test aix != "$with_aix_soname"; then + archive_expsym_cmds="$archive_expsym_cmds"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! $soname($shared_archive_member_spec.o)"; if test shr_64 = "$shared_archive_member_spec"; then func_echo_all "# 64"; else func_echo_all "# 32"; fi; cat $export_symbols ) > $output_objdir/$realname.d/$shared_archive_member_spec.imp~$AR $AR_FLAGS $output_objdir/$soname $output_objdir/$realname.d/$shared_archive_member_spec.o $output_objdir/$realname.d/$shared_archive_member_spec.imp' + else + # used by -dlpreopen to get the symbols + archive_expsym_cmds="$archive_expsym_cmds"'~$MV $output_objdir/$realname.d/$soname $output_objdir' + fi + archive_expsym_cmds="$archive_expsym_cmds"'~$RM -r $output_objdir/$realname.d' + fi + fi + ;; + + amigaos*) + case $host_cpu in + powerpc) + # see comment about AmigaOS4 .so support + archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + archive_expsym_cmds='' + ;; + m68k) + archive_cmds='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)' + hardcode_libdir_flag_spec='-L$libdir' + hardcode_minus_L=yes + ;; + esac + ;; + + bsdi[45]*) + export_dynamic_flag_spec=-rdynamic + ;; + + cygwin* | mingw* | pw32* | cegcc*) + # When not using gcc, we currently assume that we are using + # Microsoft Visual C++. + # hardcode_libdir_flag_spec is actually meaningless, as there is + # no search path for DLLs. + case $cc_basename in + cl*) + # Native MSVC + hardcode_libdir_flag_spec=' ' + allow_undefined_flag=unsupported + always_export_symbols=yes + file_list_spec='@' + # Tell ltmain to make .lib files, not .a files. + libext=lib + # Tell ltmain to make .dll files, not .so files. + shrext_cmds=.dll + # FIXME: Setting linknames here is a bad hack. + archive_cmds='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames=' + archive_expsym_cmds='if test DEF = "`$SED -n -e '\''s/^[ ]*//'\'' -e '\''/^\(;.*\)*$/d'\'' -e '\''s/^\(EXPORTS\|LIBRARY\)\([ ].*\)*$/DEF/p'\'' -e q $export_symbols`" ; then + cp "$export_symbols" "$output_objdir/$soname.def"; + echo "$tool_output_objdir$soname.def" > "$output_objdir/$soname.exp"; + else + $SED -e '\''s/^/-link -EXPORT:/'\'' < $export_symbols > $output_objdir/$soname.exp; + fi~ + $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~ + linknames=' + # The linker will not automatically build a static lib if we build a DLL. + # _LT_TAGVAR(old_archive_from_new_cmds, )='true' + enable_shared_with_static_runtimes=yes + exclude_expsyms='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*' + export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1,DATA/'\'' | $SED -e '\''/^[AITW][ ]/s/.*[ ]//'\'' | sort | uniq > $export_symbols' + # Don't use ranlib + old_postinstall_cmds='chmod 644 $oldlib' + postlink_cmds='lt_outputfile="@OUTPUT@"~ + lt_tool_outputfile="@TOOL_OUTPUT@"~ + case $lt_outputfile in + *.exe|*.EXE) ;; + *) + lt_outputfile=$lt_outputfile.exe + lt_tool_outputfile=$lt_tool_outputfile.exe + ;; + esac~ + if test : != "$MANIFEST_TOOL" && test -f "$lt_outputfile.manifest"; then + $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1; + $RM "$lt_outputfile.manifest"; + fi' + ;; + *) + # Assume MSVC wrapper + hardcode_libdir_flag_spec=' ' + allow_undefined_flag=unsupported + # Tell ltmain to make .lib files, not .a files. + libext=lib + # Tell ltmain to make .dll files, not .so files. + shrext_cmds=.dll + # FIXME: Setting linknames here is a bad hack. + archive_cmds='$CC -o $lib $libobjs $compiler_flags `func_echo_all "$deplibs" | $SED '\''s/ -lc$//'\''` -link -dll~linknames=' + # The linker will automatically build a .lib file if we build a DLL. + old_archive_from_new_cmds='true' + # FIXME: Should let the user specify the lib program. + old_archive_cmds='lib -OUT:$oldlib$oldobjs$old_deplibs' + enable_shared_with_static_runtimes=yes + ;; + esac + ;; + + darwin* | rhapsody*) + + + archive_cmds_need_lc=no + hardcode_direct=no + hardcode_automatic=yes + hardcode_shlibpath_var=unsupported + if test yes = "$lt_cv_ld_force_load"; then + whole_archive_flag_spec='`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience $wl-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`' + + else + whole_archive_flag_spec='' + fi + link_all_deplibs=yes + allow_undefined_flag=$_lt_dar_allow_undefined + case $cc_basename in + ifort*|nagfor*) _lt_dar_can_shared=yes ;; + *) _lt_dar_can_shared=$GCC ;; + esac + if test yes = "$_lt_dar_can_shared"; then + output_verbose_link_cmd=func_echo_all + archive_cmds="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dsymutil" + module_cmds="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dsymutil" + archive_expsym_cmds="sed 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dar_export_syms$_lt_dsymutil" + module_expsym_cmds="sed -e 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dar_export_syms$_lt_dsymutil" + + else + ld_shlibs=no + fi + + ;; + + dgux*) + archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + hardcode_libdir_flag_spec='-L$libdir' + hardcode_shlibpath_var=no + ;; + + # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor + # support. Future versions do this automatically, but an explicit c++rt0.o + # does not break anything, and helps significantly (at the cost of a little + # extra space). + freebsd2.2*) + archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o' + hardcode_libdir_flag_spec='-R$libdir' + hardcode_direct=yes + hardcode_shlibpath_var=no + ;; + + # Unfortunately, older versions of FreeBSD 2 do not have this feature. + freebsd2.*) + archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' + hardcode_direct=yes + hardcode_minus_L=yes + hardcode_shlibpath_var=no + ;; + + # FreeBSD 3 and greater uses gcc -shared to do shared libraries. + freebsd* | dragonfly*) + archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' + hardcode_libdir_flag_spec='-R$libdir' + hardcode_direct=yes + hardcode_shlibpath_var=no + ;; + + hpux9*) + if test yes = "$GCC"; then + archive_cmds='$RM $output_objdir/$soname~$CC -shared $pic_flag $wl+b $wl$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib' + else + archive_cmds='$RM $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib' + fi + hardcode_libdir_flag_spec='$wl+b $wl$libdir' + hardcode_libdir_separator=: + hardcode_direct=yes + + # hardcode_minus_L: Not really in the search PATH, + # but as the default location of the library. + hardcode_minus_L=yes + export_dynamic_flag_spec='$wl-E' + ;; + + hpux10*) + if test yes,no = "$GCC,$with_gnu_ld"; then + archive_cmds='$CC -shared $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags' + else + archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags' + fi + if test no = "$with_gnu_ld"; then + hardcode_libdir_flag_spec='$wl+b $wl$libdir' + hardcode_libdir_separator=: + hardcode_direct=yes + hardcode_direct_absolute=yes + export_dynamic_flag_spec='$wl-E' + # hardcode_minus_L: Not really in the search PATH, + # but as the default location of the library. + hardcode_minus_L=yes + fi + ;; + + hpux11*) + if test yes,no = "$GCC,$with_gnu_ld"; then + case $host_cpu in + hppa*64*) + archive_cmds='$CC -shared $wl+h $wl$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + ia64*) + archive_cmds='$CC -shared $pic_flag $wl+h $wl$soname $wl+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags' + ;; + *) + archive_cmds='$CC -shared $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags' + ;; + esac + else + case $host_cpu in + hppa*64*) + archive_cmds='$CC -b $wl+h $wl$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + ia64*) + archive_cmds='$CC -b $wl+h $wl$soname $wl+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags' + ;; + *) + + # Older versions of the 11.00 compiler do not understand -b yet + # (HP92453-01 A.11.01.20 doesn't, HP92453-01 B.11.X.35175-35176.GP does) + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC understands -b" >&5 +$as_echo_n "checking if $CC understands -b... " >&6; } +if ${lt_cv_prog_compiler__b+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_prog_compiler__b=no + save_LDFLAGS=$LDFLAGS + LDFLAGS="$LDFLAGS -b" + echo "$lt_simple_link_test_code" > conftest.$ac_ext + if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then + # The linker can only warn and ignore the option if not recognized + # So say no if there are warnings + if test -s conftest.err; then + # Append any errors to the config.log. + cat conftest.err 1>&5 + $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp + $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2 + if diff conftest.exp conftest.er2 >/dev/null; then + lt_cv_prog_compiler__b=yes + fi + else + lt_cv_prog_compiler__b=yes + fi + fi + $RM -r conftest* + LDFLAGS=$save_LDFLAGS + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler__b" >&5 +$as_echo "$lt_cv_prog_compiler__b" >&6; } + +if test yes = "$lt_cv_prog_compiler__b"; then + archive_cmds='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags' +else + archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags' +fi + + ;; + esac + fi + if test no = "$with_gnu_ld"; then + hardcode_libdir_flag_spec='$wl+b $wl$libdir' + hardcode_libdir_separator=: + + case $host_cpu in + hppa*64*|ia64*) + hardcode_direct=no + hardcode_shlibpath_var=no + ;; + *) + hardcode_direct=yes + hardcode_direct_absolute=yes + export_dynamic_flag_spec='$wl-E' + + # hardcode_minus_L: Not really in the search PATH, + # but as the default location of the library. + hardcode_minus_L=yes + ;; + esac + fi + ;; + + irix5* | irix6* | nonstopux*) + if test yes = "$GCC"; then + archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib' + # Try to use the -exported_symbol ld option, if it does not + # work, assume that -exports_file does not work either and + # implicitly export all symbols. + # This should be the same for all languages, so no per-tag cache variable. + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $host_os linker accepts -exported_symbol" >&5 +$as_echo_n "checking whether the $host_os linker accepts -exported_symbol... " >&6; } +if ${lt_cv_irix_exported_symbol+:} false; then : + $as_echo_n "(cached) " >&6 +else + save_LDFLAGS=$LDFLAGS + LDFLAGS="$LDFLAGS -shared $wl-exported_symbol ${wl}foo $wl-update_registry $wl/dev/null" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +int foo (void) { return 0; } +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + lt_cv_irix_exported_symbol=yes +else + lt_cv_irix_exported_symbol=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + LDFLAGS=$save_LDFLAGS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_irix_exported_symbol" >&5 +$as_echo "$lt_cv_irix_exported_symbol" >&6; } + if test yes = "$lt_cv_irix_exported_symbol"; then + archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations $wl-exports_file $wl$export_symbols -o $lib' + fi + else + archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' + archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -exports_file $export_symbols -o $lib' + fi + archive_cmds_need_lc='no' + hardcode_libdir_flag_spec='$wl-rpath $wl$libdir' + hardcode_libdir_separator=: + inherit_rpath=yes + link_all_deplibs=yes + ;; + + linux*) + case $cc_basename in + tcc*) + # Fabrice Bellard et al's Tiny C Compiler + ld_shlibs=yes + archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' + ;; + esac + ;; + + netbsd*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' # a.out + else + archive_cmds='$LD -shared -o $lib $libobjs $deplibs $linker_flags' # ELF + fi + hardcode_libdir_flag_spec='-R$libdir' + hardcode_direct=yes + hardcode_shlibpath_var=no + ;; + + newsos6) + archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + hardcode_direct=yes + hardcode_libdir_flag_spec='$wl-rpath $wl$libdir' + hardcode_libdir_separator=: + hardcode_shlibpath_var=no + ;; + + *nto* | *qnx*) + ;; + + openbsd* | bitrig*) + if test -f /usr/libexec/ld.so; then + hardcode_direct=yes + hardcode_shlibpath_var=no + hardcode_direct_absolute=yes + if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then + archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags $wl-retain-symbols-file,$export_symbols' + hardcode_libdir_flag_spec='$wl-rpath,$libdir' + export_dynamic_flag_spec='$wl-E' + else + archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' + hardcode_libdir_flag_spec='$wl-rpath,$libdir' + fi + else + ld_shlibs=no + fi + ;; + + os2*) + hardcode_libdir_flag_spec='-L$libdir' + hardcode_minus_L=yes + allow_undefined_flag=unsupported + shrext_cmds=.dll + archive_cmds='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~ + $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~ + $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~ + $ECHO EXPORTS >> $output_objdir/$libname.def~ + emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~ + $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ + emximp -o $lib $output_objdir/$libname.def' + archive_expsym_cmds='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~ + $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~ + $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~ + $ECHO EXPORTS >> $output_objdir/$libname.def~ + prefix_cmds="$SED"~ + if test EXPORTS = "`$SED 1q $export_symbols`"; then + prefix_cmds="$prefix_cmds -e 1d"; + fi~ + prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~ + cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~ + $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ + emximp -o $lib $output_objdir/$libname.def' + old_archive_From_new_cmds='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def' + enable_shared_with_static_runtimes=yes + ;; + + osf3*) + if test yes = "$GCC"; then + allow_undefined_flag=' $wl-expect_unresolved $wl\*' + archive_cmds='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib' + else + allow_undefined_flag=' -expect_unresolved \*' + archive_cmds='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' + fi + archive_cmds_need_lc='no' + hardcode_libdir_flag_spec='$wl-rpath $wl$libdir' + hardcode_libdir_separator=: + ;; + + osf4* | osf5*) # as osf3* with the addition of -msym flag + if test yes = "$GCC"; then + allow_undefined_flag=' $wl-expect_unresolved $wl\*' + archive_cmds='$CC -shared$allow_undefined_flag $pic_flag $libobjs $deplibs $compiler_flags $wl-msym $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib' + hardcode_libdir_flag_spec='$wl-rpath $wl$libdir' + else + allow_undefined_flag=' -expect_unresolved \*' + archive_cmds='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' + archive_expsym_cmds='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; printf "%s\\n" "-hidden">> $lib.exp~ + $CC -shared$allow_undefined_flag $wl-input $wl$lib.exp $compiler_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib~$RM $lib.exp' + + # Both c and cxx compiler support -rpath directly + hardcode_libdir_flag_spec='-rpath $libdir' + fi + archive_cmds_need_lc='no' + hardcode_libdir_separator=: + ;; + + solaris*) + no_undefined_flag=' -z defs' + if test yes = "$GCC"; then + wlarc='$wl' + archive_cmds='$CC -shared $pic_flag $wl-z ${wl}text $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -shared $pic_flag $wl-z ${wl}text $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp' + else + case `$CC -V 2>&1` in + *"Compilers 5.0"*) + wlarc='' + archive_cmds='$LD -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $linker_flags' + archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $LD -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp' + ;; + *) + wlarc='$wl' + archive_cmds='$CC -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp' + ;; + esac + fi + hardcode_libdir_flag_spec='-R$libdir' + hardcode_shlibpath_var=no + case $host_os in + solaris2.[0-5] | solaris2.[0-5].*) ;; + *) + # The compiler driver will combine and reorder linker options, + # but understands '-z linker_flag'. GCC discards it without '$wl', + # but is careful enough not to reorder. + # Supported since Solaris 2.6 (maybe 2.5.1?) + if test yes = "$GCC"; then + whole_archive_flag_spec='$wl-z ${wl}allextract$convenience $wl-z ${wl}defaultextract' + else + whole_archive_flag_spec='-z allextract$convenience -z defaultextract' + fi + ;; + esac + link_all_deplibs=yes + ;; + + sunos4*) + if test sequent = "$host_vendor"; then + # Use $CC to link under sequent, because it throws in some extra .o + # files that make .init and .fini sections work. + archive_cmds='$CC -G $wl-h $soname -o $lib $libobjs $deplibs $compiler_flags' + else + archive_cmds='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags' + fi + hardcode_libdir_flag_spec='-L$libdir' + hardcode_direct=yes + hardcode_minus_L=yes + hardcode_shlibpath_var=no + ;; + + sysv4) + case $host_vendor in + sni) + archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + hardcode_direct=yes # is this really true??? + ;; + siemens) + ## LD is ld it makes a PLAMLIB + ## CC just makes a GrossModule. + archive_cmds='$LD -G -o $lib $libobjs $deplibs $linker_flags' + reload_cmds='$CC -r -o $output$reload_objs' + hardcode_direct=no + ;; + motorola) + archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + hardcode_direct=no #Motorola manual says yes, but my tests say they lie + ;; + esac + runpath_var='LD_RUN_PATH' + hardcode_shlibpath_var=no + ;; + + sysv4.3*) + archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + hardcode_shlibpath_var=no + export_dynamic_flag_spec='-Bexport' + ;; + + sysv4*MP*) + if test -d /usr/nec; then + archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + hardcode_shlibpath_var=no + runpath_var=LD_RUN_PATH + hardcode_runpath_var=yes + ld_shlibs=yes + fi + ;; + + sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[01].[10]* | unixware7* | sco3.2v5.0.[024]*) + no_undefined_flag='$wl-z,text' + archive_cmds_need_lc=no + hardcode_shlibpath_var=no + runpath_var='LD_RUN_PATH' + + if test yes = "$GCC"; then + archive_cmds='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + else + archive_cmds='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + fi + ;; + + sysv5* | sco3.2v5* | sco5v6*) + # Note: We CANNOT use -z defs as we might desire, because we do not + # link with -lc, and that would cause any symbols used from libc to + # always be unresolved, which means just about no library would + # ever link correctly. If we're not using GNU ld we use -z text + # though, which does catch some bad symbols but isn't as heavy-handed + # as -z defs. + no_undefined_flag='$wl-z,text' + allow_undefined_flag='$wl-z,nodefs' + archive_cmds_need_lc=no + hardcode_shlibpath_var=no + hardcode_libdir_flag_spec='$wl-R,$libdir' + hardcode_libdir_separator=':' + link_all_deplibs=yes + export_dynamic_flag_spec='$wl-Bexport' + runpath_var='LD_RUN_PATH' + + if test yes = "$GCC"; then + archive_cmds='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + else + archive_cmds='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + fi + ;; + + uts4*) + archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + hardcode_libdir_flag_spec='-L$libdir' + hardcode_shlibpath_var=no + ;; + + *) + ld_shlibs=no + ;; + esac + + if test sni = "$host_vendor"; then + case $host in + sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*) + export_dynamic_flag_spec='$wl-Blargedynsym' + ;; + esac + fi + fi + +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs" >&5 +$as_echo "$ld_shlibs" >&6; } +test no = "$ld_shlibs" && can_build_shared=no + +with_gnu_ld=$with_gnu_ld + + + + + + + + + + + + + + + +# +# Do we need to explicitly link libc? +# +case "x$archive_cmds_need_lc" in +x|xyes) + # Assume -lc should be added + archive_cmds_need_lc=yes + + if test yes,yes = "$GCC,$enable_shared"; then + case $archive_cmds in + *'~'*) + # FIXME: we may have to deal with multi-command sequences. + ;; + '$CC '*) + # Test whether the compiler implicitly links with -lc since on some + # systems, -lgcc has to come before -lc. If gcc already passes -lc + # to ld, don't add -lc before -lgcc. + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -lc should be explicitly linked in" >&5 +$as_echo_n "checking whether -lc should be explicitly linked in... " >&6; } +if ${lt_cv_archive_cmds_need_lc+:} false; then : + $as_echo_n "(cached) " >&6 +else + $RM conftest* + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } 2>conftest.err; then + soname=conftest + lib=conftest + libobjs=conftest.$ac_objext + deplibs= + wl=$lt_prog_compiler_wl + pic_flag=$lt_prog_compiler_pic + compiler_flags=-v + linker_flags=-v + verstring= + output_objdir=. + libname=conftest + lt_save_allow_undefined_flag=$allow_undefined_flag + allow_undefined_flag= + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$archive_cmds 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1\""; } >&5 + (eval $archive_cmds 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + then + lt_cv_archive_cmds_need_lc=no + else + lt_cv_archive_cmds_need_lc=yes + fi + allow_undefined_flag=$lt_save_allow_undefined_flag + else + cat conftest.err 1>&5 + fi + $RM conftest* + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_archive_cmds_need_lc" >&5 +$as_echo "$lt_cv_archive_cmds_need_lc" >&6; } + archive_cmds_need_lc=$lt_cv_archive_cmds_need_lc + ;; + esac + fi + ;; +esac + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking dynamic linker characteristics" >&5 +$as_echo_n "checking dynamic linker characteristics... " >&6; } + +if test yes = "$GCC"; then + case $host_os in + darwin*) lt_awk_arg='/^libraries:/,/LR/' ;; + *) lt_awk_arg='/^libraries:/' ;; + esac + case $host_os in + mingw* | cegcc*) lt_sed_strip_eq='s|=\([A-Za-z]:\)|\1|g' ;; + *) lt_sed_strip_eq='s|=/|/|g' ;; + esac + lt_search_path_spec=`$CC -print-search-dirs | awk $lt_awk_arg | $SED -e "s/^libraries://" -e $lt_sed_strip_eq` + case $lt_search_path_spec in + *\;*) + # if the path contains ";" then we assume it to be the separator + # otherwise default to the standard path separator (i.e. ":") - it is + # assumed that no part of a normal pathname contains ";" but that should + # okay in the real world where ";" in dirpaths is itself problematic. + lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED 's/;/ /g'` + ;; + *) + lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED "s/$PATH_SEPARATOR/ /g"` + ;; + esac + # Ok, now we have the path, separated by spaces, we can step through it + # and add multilib dir if necessary... + lt_tmp_lt_search_path_spec= + lt_multi_os_dir=/`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null` + # ...but if some path component already ends with the multilib dir we assume + # that all is fine and trust -print-search-dirs as is (GCC 4.2? or newer). + case "$lt_multi_os_dir; $lt_search_path_spec " in + "/; "* | "/.; "* | "/./; "* | *"$lt_multi_os_dir "* | *"$lt_multi_os_dir/ "*) + lt_multi_os_dir= + ;; + esac + for lt_sys_path in $lt_search_path_spec; do + if test -d "$lt_sys_path$lt_multi_os_dir"; then + lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path$lt_multi_os_dir" + elif test -n "$lt_multi_os_dir"; then + test -d "$lt_sys_path" && \ + lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path" + fi + done + lt_search_path_spec=`$ECHO "$lt_tmp_lt_search_path_spec" | awk ' +BEGIN {RS = " "; FS = "/|\n";} { + lt_foo = ""; + lt_count = 0; + for (lt_i = NF; lt_i > 0; lt_i--) { + if ($lt_i != "" && $lt_i != ".") { + if ($lt_i == "..") { + lt_count++; + } else { + if (lt_count == 0) { + lt_foo = "/" $lt_i lt_foo; + } else { + lt_count--; + } + } + } + } + if (lt_foo != "") { lt_freq[lt_foo]++; } + if (lt_freq[lt_foo] == 1) { print lt_foo; } +}'` + # AWK program above erroneously prepends '/' to C:/dos/paths + # for these hosts. + case $host_os in + mingw* | cegcc*) lt_search_path_spec=`$ECHO "$lt_search_path_spec" |\ + $SED 's|/\([A-Za-z]:\)|\1|g'` ;; + esac + sys_lib_search_path_spec=`$ECHO "$lt_search_path_spec" | $lt_NL2SP` +else + sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib" +fi +library_names_spec= +libname_spec='lib$name' +soname_spec= +shrext_cmds=.so +postinstall_cmds= +postuninstall_cmds= +finish_cmds= +finish_eval= +shlibpath_var= +shlibpath_overrides_runpath=unknown +version_type=none +dynamic_linker="$host_os ld.so" +sys_lib_dlsearch_path_spec="/lib /usr/lib" +need_lib_prefix=unknown +hardcode_into_libs=no + +# when you set need_version to no, make sure it does not cause -set_version +# flags to be left without arguments +need_version=unknown + + + +case $host_os in +aix3*) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='$libname$release$shared_ext$versuffix $libname.a' + shlibpath_var=LIBPATH + + # AIX 3 has no versioning support, so we append a major version to the name. + soname_spec='$libname$release$shared_ext$major' + ;; + +aix[4-9]*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + hardcode_into_libs=yes + if test ia64 = "$host_cpu"; then + # AIX 5 supports IA64 + library_names_spec='$libname$release$shared_ext$major $libname$release$shared_ext$versuffix $libname$shared_ext' + shlibpath_var=LD_LIBRARY_PATH + else + # With GCC up to 2.95.x, collect2 would create an import file + # for dependence libraries. The import file would start with + # the line '#! .'. This would cause the generated library to + # depend on '.', always an invalid library. This was fixed in + # development snapshots of GCC prior to 3.0. + case $host_os in + aix4 | aix4.[01] | aix4.[01].*) + if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)' + echo ' yes ' + echo '#endif'; } | $CC -E - | $GREP yes > /dev/null; then + : + else + can_build_shared=no + fi + ;; + esac + # Using Import Files as archive members, it is possible to support + # filename-based versioning of shared library archives on AIX. While + # this would work for both with and without runtime linking, it will + # prevent static linking of such archives. So we do filename-based + # shared library versioning with .so extension only, which is used + # when both runtime linking and shared linking is enabled. + # Unfortunately, runtime linking may impact performance, so we do + # not want this to be the default eventually. Also, we use the + # versioned .so libs for executables only if there is the -brtl + # linker flag in LDFLAGS as well, or --with-aix-soname=svr4 only. + # To allow for filename-based versioning support, we need to create + # libNAME.so.V as an archive file, containing: + # *) an Import File, referring to the versioned filename of the + # archive as well as the shared archive member, telling the + # bitwidth (32 or 64) of that shared object, and providing the + # list of exported symbols of that shared object, eventually + # decorated with the 'weak' keyword + # *) the shared object with the F_LOADONLY flag set, to really avoid + # it being seen by the linker. + # At run time we better use the real file rather than another symlink, + # but for link time we create the symlink libNAME.so -> libNAME.so.V + + case $with_aix_soname,$aix_use_runtimelinking in + # AIX (on Power*) has no versioning support, so currently we cannot hardcode correct + # soname into executable. Probably we can add versioning support to + # collect2, so additional links can be useful in future. + aix,yes) # traditional libtool + dynamic_linker='AIX unversionable lib.so' + # If using run time linking (on AIX 4.2 or later) use lib.so + # instead of lib.a to let people know that these are not + # typical AIX shared libraries. + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + ;; + aix,no) # traditional AIX only + dynamic_linker='AIX lib.a(lib.so.V)' + # We preserve .a as extension for shared libraries through AIX4.2 + # and later when we are not doing run time linking. + library_names_spec='$libname$release.a $libname.a' + soname_spec='$libname$release$shared_ext$major' + ;; + svr4,*) # full svr4 only + dynamic_linker="AIX lib.so.V($shared_archive_member_spec.o)" + library_names_spec='$libname$release$shared_ext$major $libname$shared_ext' + # We do not specify a path in Import Files, so LIBPATH fires. + shlibpath_overrides_runpath=yes + ;; + *,yes) # both, prefer svr4 + dynamic_linker="AIX lib.so.V($shared_archive_member_spec.o), lib.a(lib.so.V)" + library_names_spec='$libname$release$shared_ext$major $libname$shared_ext' + # unpreferred sharedlib libNAME.a needs extra handling + postinstall_cmds='test -n "$linkname" || linkname="$realname"~func_stripname "" ".so" "$linkname"~$install_shared_prog "$dir/$func_stripname_result.$libext" "$destdir/$func_stripname_result.$libext"~test -z "$tstripme" || test -z "$striplib" || $striplib "$destdir/$func_stripname_result.$libext"' + postuninstall_cmds='for n in $library_names $old_library; do :; done~func_stripname "" ".so" "$n"~test "$func_stripname_result" = "$n" || func_append rmfiles " $odir/$func_stripname_result.$libext"' + # We do not specify a path in Import Files, so LIBPATH fires. + shlibpath_overrides_runpath=yes + ;; + *,no) # both, prefer aix + dynamic_linker="AIX lib.a(lib.so.V), lib.so.V($shared_archive_member_spec.o)" + library_names_spec='$libname$release.a $libname.a' + soname_spec='$libname$release$shared_ext$major' + # unpreferred sharedlib libNAME.so.V and symlink libNAME.so need extra handling + postinstall_cmds='test -z "$dlname" || $install_shared_prog $dir/$dlname $destdir/$dlname~test -z "$tstripme" || test -z "$striplib" || $striplib $destdir/$dlname~test -n "$linkname" || linkname=$realname~func_stripname "" ".a" "$linkname"~(cd "$destdir" && $LN_S -f $dlname $func_stripname_result.so)' + postuninstall_cmds='test -z "$dlname" || func_append rmfiles " $odir/$dlname"~for n in $old_library $library_names; do :; done~func_stripname "" ".a" "$n"~func_append rmfiles " $odir/$func_stripname_result.so"' + ;; + esac + shlibpath_var=LIBPATH + fi + ;; + +amigaos*) + case $host_cpu in + powerpc) + # Since July 2007 AmigaOS4 officially supports .so libraries. + # When compiling the executable, add -use-dynld -Lsobjs: to the compileline. + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + ;; + m68k) + library_names_spec='$libname.ixlibrary $libname.a' + # Create ${libname}_ixlibrary.a entries in /sys/libs. + finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done' + ;; + esac + ;; + +beos*) + library_names_spec='$libname$shared_ext' + dynamic_linker="$host_os ld.so" + shlibpath_var=LIBRARY_PATH + ;; + +bsdi[45]*) + version_type=linux # correct to gnu/linux during the next big refactor + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir' + shlibpath_var=LD_LIBRARY_PATH + sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib" + sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib" + # the default ld.so.conf also contains /usr/contrib/lib and + # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow + # libtool to hard-code these into programs + ;; + +cygwin* | mingw* | pw32* | cegcc*) + version_type=windows + shrext_cmds=.dll + need_version=no + need_lib_prefix=no + + case $GCC,$cc_basename in + yes,*) + # gcc + library_names_spec='$libname.dll.a' + # DLL is installed to $(libdir)/../bin by postinstall_cmds + postinstall_cmds='base_file=`basename \$file`~ + dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~ + dldir=$destdir/`dirname \$dlpath`~ + test -d \$dldir || mkdir -p \$dldir~ + $install_prog $dir/$dlname \$dldir/$dlname~ + chmod a+x \$dldir/$dlname~ + if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then + eval '\''$striplib \$dldir/$dlname'\'' || exit \$?; + fi' + postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~ + dlpath=$dir/\$dldll~ + $RM \$dlpath' + shlibpath_overrides_runpath=yes + + case $host_os in + cygwin*) + # Cygwin DLLs use 'cyg' prefix rather than 'lib' + soname_spec='`echo $libname | sed -e 's/^lib/cyg/'``echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext' + + sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api" + ;; + mingw* | cegcc*) + # MinGW DLLs use traditional 'lib' prefix + soname_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext' + ;; + pw32*) + # pw32 DLLs use 'pw' prefix rather than 'lib' + library_names_spec='`echo $libname | sed -e 's/^lib/pw/'``echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext' + ;; + esac + dynamic_linker='Win32 ld.exe' + ;; + + *,cl*) + # Native MSVC + libname_spec='$name' + soname_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext' + library_names_spec='$libname.dll.lib' + + case $build_os in + mingw*) + sys_lib_search_path_spec= + lt_save_ifs=$IFS + IFS=';' + for lt_path in $LIB + do + IFS=$lt_save_ifs + # Let DOS variable expansion print the short 8.3 style file name. + lt_path=`cd "$lt_path" 2>/dev/null && cmd //C "for %i in (".") do @echo %~si"` + sys_lib_search_path_spec="$sys_lib_search_path_spec $lt_path" + done + IFS=$lt_save_ifs + # Convert to MSYS style. + sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | sed -e 's|\\\\|/|g' -e 's| \\([a-zA-Z]\\):| /\\1|g' -e 's|^ ||'` + ;; + cygwin*) + # Convert to unix form, then to dos form, then back to unix form + # but this time dos style (no spaces!) so that the unix form looks + # like /cygdrive/c/PROGRA~1:/cygdr... + sys_lib_search_path_spec=`cygpath --path --unix "$LIB"` + sys_lib_search_path_spec=`cygpath --path --dos "$sys_lib_search_path_spec" 2>/dev/null` + sys_lib_search_path_spec=`cygpath --path --unix "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"` + ;; + *) + sys_lib_search_path_spec=$LIB + if $ECHO "$sys_lib_search_path_spec" | $GREP ';[c-zC-Z]:/' >/dev/null; then + # It is most probably a Windows format PATH. + sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'` + else + sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"` + fi + # FIXME: find the short name or the path components, as spaces are + # common. (e.g. "Program Files" -> "PROGRA~1") + ;; + esac + + # DLL is installed to $(libdir)/../bin by postinstall_cmds + postinstall_cmds='base_file=`basename \$file`~ + dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~ + dldir=$destdir/`dirname \$dlpath`~ + test -d \$dldir || mkdir -p \$dldir~ + $install_prog $dir/$dlname \$dldir/$dlname' + postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~ + dlpath=$dir/\$dldll~ + $RM \$dlpath' + shlibpath_overrides_runpath=yes + dynamic_linker='Win32 link.exe' + ;; + + *) + # Assume MSVC wrapper + library_names_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext $libname.lib' + dynamic_linker='Win32 ld.exe' + ;; + esac + # FIXME: first we should search . and the directory the executable is in + shlibpath_var=PATH + ;; + +darwin* | rhapsody*) + dynamic_linker="$host_os dyld" + version_type=darwin + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$major$shared_ext $libname$shared_ext' + soname_spec='$libname$release$major$shared_ext' + shlibpath_overrides_runpath=yes + shlibpath_var=DYLD_LIBRARY_PATH + shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`' + + sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/local/lib" + sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib' + ;; + +dgux*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + ;; + +freebsd* | dragonfly*) + # DragonFly does not have aout. When/if they implement a new + # versioning mechanism, adjust this. + if test -x /usr/bin/objformat; then + objformat=`/usr/bin/objformat` + else + case $host_os in + freebsd[23].*) objformat=aout ;; + *) objformat=elf ;; + esac + fi + version_type=freebsd-$objformat + case $version_type in + freebsd-elf*) + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + need_version=no + need_lib_prefix=no + ;; + freebsd-*) + library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix' + need_version=yes + ;; + esac + shlibpath_var=LD_LIBRARY_PATH + case $host_os in + freebsd2.*) + shlibpath_overrides_runpath=yes + ;; + freebsd3.[01]* | freebsdelf3.[01]*) + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + ;; + freebsd3.[2-9]* | freebsdelf3.[2-9]* | \ + freebsd4.[0-5] | freebsdelf4.[0-5] | freebsd4.1.1 | freebsdelf4.1.1) + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + *) # from 4.6 on, and DragonFly + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + ;; + esac + ;; + +haiku*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + dynamic_linker="$host_os runtime_loader" + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LIBRARY_PATH + shlibpath_overrides_runpath=no + sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib' + hardcode_into_libs=yes + ;; + +hpux9* | hpux10* | hpux11*) + # Give a soname corresponding to the major version so that dld.sl refuses to + # link against other versions. + version_type=sunos + need_lib_prefix=no + need_version=no + case $host_cpu in + ia64*) + shrext_cmds='.so' + hardcode_into_libs=yes + dynamic_linker="$host_os dld.so" + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + if test 32 = "$HPUX_IA64_MODE"; then + sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib" + sys_lib_dlsearch_path_spec=/usr/lib/hpux32 + else + sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64" + sys_lib_dlsearch_path_spec=/usr/lib/hpux64 + fi + ;; + hppa*64*) + shrext_cmds='.sl' + hardcode_into_libs=yes + dynamic_linker="$host_os dld.sl" + shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH + shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64" + sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec + ;; + *) + shrext_cmds='.sl' + dynamic_linker="$host_os dld.sl" + shlibpath_var=SHLIB_PATH + shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + ;; + esac + # HP-UX runs *really* slowly unless shared libraries are mode 555, ... + postinstall_cmds='chmod 555 $lib' + # or fails outright, so override atomically: + install_override_mode=555 + ;; + +interix[3-9]*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + +irix5* | irix6* | nonstopux*) + case $host_os in + nonstopux*) version_type=nonstopux ;; + *) + if test yes = "$lt_cv_prog_gnu_ld"; then + version_type=linux # correct to gnu/linux during the next big refactor + else + version_type=irix + fi ;; + esac + need_lib_prefix=no + need_version=no + soname_spec='$libname$release$shared_ext$major' + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$release$shared_ext $libname$shared_ext' + case $host_os in + irix5* | nonstopux*) + libsuff= shlibsuff= + ;; + *) + case $LD in # libtool.m4 will add one of these switches to LD + *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ") + libsuff= shlibsuff= libmagic=32-bit;; + *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ") + libsuff=32 shlibsuff=N32 libmagic=N32;; + *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ") + libsuff=64 shlibsuff=64 libmagic=64-bit;; + *) libsuff= shlibsuff= libmagic=never-match;; + esac + ;; + esac + shlibpath_var=LD_LIBRARY${shlibsuff}_PATH + shlibpath_overrides_runpath=no + sys_lib_search_path_spec="/usr/lib$libsuff /lib$libsuff /usr/local/lib$libsuff" + sys_lib_dlsearch_path_spec="/usr/lib$libsuff /lib$libsuff" + hardcode_into_libs=yes + ;; + +# No shared lib support for Linux oldld, aout, or coff. +linux*oldld* | linux*aout* | linux*coff*) + dynamic_linker=no + ;; + +linux*android*) + version_type=none # Android doesn't support versioned libraries. + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext' + soname_spec='$libname$release$shared_ext' + finish_cmds= + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + + # This implies no fast_install, which is unacceptable. + # Some rework will be needed to allow for fast_install + # before this can be enabled. + hardcode_into_libs=yes + + dynamic_linker='Android linker' + # Don't embed -rpath directories since the linker doesn't support them. + hardcode_libdir_flag_spec='-L$libdir' + ;; + +# This must be glibc/ELF. +linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + + # Some binutils ld are patched to set DT_RUNPATH + if ${lt_cv_shlibpath_overrides_runpath+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_shlibpath_overrides_runpath=no + save_LDFLAGS=$LDFLAGS + save_libdir=$libdir + eval "libdir=/foo; wl=\"$lt_prog_compiler_wl\"; \ + LDFLAGS=\"\$LDFLAGS $hardcode_libdir_flag_spec\"" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + if ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null; then : + lt_cv_shlibpath_overrides_runpath=yes +fi +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + LDFLAGS=$save_LDFLAGS + libdir=$save_libdir + +fi + + shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath + + # This implies no fast_install, which is unacceptable. + # Some rework will be needed to allow for fast_install + # before this can be enabled. + hardcode_into_libs=yes + + # Add ABI-specific directories to the system library path. + sys_lib_dlsearch_path_spec="/lib64 /usr/lib64 /lib /usr/lib" + + # Ideally, we could use ldconfig to report *all* directores which are + # searched for libraries, however this is still not possible. Aside from not + # being certain /sbin/ldconfig is available, command + # 'ldconfig -N -X -v | grep ^/' on 64bit Fedora does not report /usr/lib64, + # even though it is searched at run-time. Try to do the best guess by + # appending ld.so.conf contents (and includes) to the search path. + if test -f /etc/ld.so.conf; then + lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \$2)); skip = 1; } { if (!skip) print \$0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[ ]*hwcap[ ]/d;s/[:, ]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '` + sys_lib_dlsearch_path_spec="$sys_lib_dlsearch_path_spec $lt_ld_extra" + fi + + # We used to test for /lib/ld.so.1 and disable shared libraries on + # powerpc, because MkLinux only supported shared libraries with the + # GNU dynamic linker. Since this was broken with cross compilers, + # most powerpc-linux boxes support dynamic linking these days and + # people can always --disable-shared, the test was removed, and we + # assume the GNU/Linux dynamic linker is in use. + dynamic_linker='GNU/Linux ld.so' + ;; + +netbsd*) + version_type=sunos + need_lib_prefix=no + need_version=no + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix' + finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir' + dynamic_linker='NetBSD (a.out) ld.so' + else + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + dynamic_linker='NetBSD ld.elf_so' + fi + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + ;; + +newsos6) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + ;; + +*nto* | *qnx*) + version_type=qnx + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + dynamic_linker='ldqnx.so' + ;; + +openbsd* | bitrig*) + version_type=sunos + sys_lib_dlsearch_path_spec=/usr/lib + need_lib_prefix=no + if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then + need_version=no + else + need_version=yes + fi + library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix' + finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + ;; + +os2*) + libname_spec='$name' + version_type=windows + shrext_cmds=.dll + need_version=no + need_lib_prefix=no + # OS/2 can only load a DLL with a base name of 8 characters or less. + soname_spec='`test -n "$os2dllname" && libname="$os2dllname"; + v=$($ECHO $release$versuffix | tr -d .-); + n=$($ECHO $libname | cut -b -$((8 - ${#v})) | tr . _); + $ECHO $n$v`$shared_ext' + library_names_spec='${libname}_dll.$libext' + dynamic_linker='OS/2 ld.exe' + shlibpath_var=BEGINLIBPATH + sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib" + sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec + postinstall_cmds='base_file=`basename \$file`~ + dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; $ECHO \$dlname'\''`~ + dldir=$destdir/`dirname \$dlpath`~ + test -d \$dldir || mkdir -p \$dldir~ + $install_prog $dir/$dlname \$dldir/$dlname~ + chmod a+x \$dldir/$dlname~ + if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then + eval '\''$striplib \$dldir/$dlname'\'' || exit \$?; + fi' + postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; $ECHO \$dlname'\''`~ + dlpath=$dir/\$dldll~ + $RM \$dlpath' + ;; + +osf3* | osf4* | osf5*) + version_type=osf + need_lib_prefix=no + need_version=no + soname_spec='$libname$release$shared_ext$major' + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + shlibpath_var=LD_LIBRARY_PATH + sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib" + sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec + ;; + +rdos*) + dynamic_linker=no + ;; + +solaris*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + # ldd complains unless libraries are executable + postinstall_cmds='chmod +x $lib' + ;; + +sunos4*) + version_type=sunos + library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix' + finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + if test yes = "$with_gnu_ld"; then + need_lib_prefix=no + fi + need_version=yes + ;; + +sysv4 | sysv4.3*) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + case $host_vendor in + sni) + shlibpath_overrides_runpath=no + need_lib_prefix=no + runpath_var=LD_RUN_PATH + ;; + siemens) + need_lib_prefix=no + ;; + motorola) + need_lib_prefix=no + need_version=no + shlibpath_overrides_runpath=no + sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib' + ;; + esac + ;; + +sysv4*MP*) + if test -d /usr/nec; then + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='$libname$shared_ext.$versuffix $libname$shared_ext.$major $libname$shared_ext' + soname_spec='$libname$shared_ext.$major' + shlibpath_var=LD_LIBRARY_PATH + fi + ;; + +sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*) + version_type=sco + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + if test yes = "$with_gnu_ld"; then + sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib' + else + sys_lib_search_path_spec='/usr/ccs/lib /usr/lib' + case $host_os in + sco3.2v5*) + sys_lib_search_path_spec="$sys_lib_search_path_spec /lib" + ;; + esac + fi + sys_lib_dlsearch_path_spec='/usr/lib' + ;; + +tpf*) + # TPF is a cross-target only. Preferred cross-host = GNU/Linux. + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + +uts4*) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + ;; + +*) + dynamic_linker=no + ;; +esac +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $dynamic_linker" >&5 +$as_echo "$dynamic_linker" >&6; } +test no = "$dynamic_linker" && can_build_shared=no + +variables_saved_for_relink="PATH $shlibpath_var $runpath_var" +if test yes = "$GCC"; then + variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH" +fi + +if test set = "${lt_cv_sys_lib_search_path_spec+set}"; then + sys_lib_search_path_spec=$lt_cv_sys_lib_search_path_spec +fi + +if test set = "${lt_cv_sys_lib_dlsearch_path_spec+set}"; then + sys_lib_dlsearch_path_spec=$lt_cv_sys_lib_dlsearch_path_spec +fi + +# remember unaugmented sys_lib_dlsearch_path content for libtool script decls... +configure_time_dlsearch_path=$sys_lib_dlsearch_path_spec + +# ... but it needs LT_SYS_LIBRARY_PATH munging for other configure-time code +func_munge_path_list sys_lib_dlsearch_path_spec "$LT_SYS_LIBRARY_PATH" + +# to be used as default LT_SYS_LIBRARY_PATH value in generated libtool +configure_time_lt_sys_library_path=$LT_SYS_LIBRARY_PATH + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to hardcode library paths into programs" >&5 +$as_echo_n "checking how to hardcode library paths into programs... " >&6; } +hardcode_action= +if test -n "$hardcode_libdir_flag_spec" || + test -n "$runpath_var" || + test yes = "$hardcode_automatic"; then + + # We can hardcode non-existent directories. + if test no != "$hardcode_direct" && + # If the only mechanism to avoid hardcoding is shlibpath_var, we + # have to relink, otherwise we might link with an installed library + # when we should be linking with a yet-to-be-installed one + ## test no != "$_LT_TAGVAR(hardcode_shlibpath_var, )" && + test no != "$hardcode_minus_L"; then + # Linking always hardcodes the temporary library directory. + hardcode_action=relink + else + # We can link without hardcoding, and we can hardcode nonexisting dirs. + hardcode_action=immediate + fi +else + # We cannot hardcode anything, or else we can only hardcode existing + # directories. + hardcode_action=unsupported +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $hardcode_action" >&5 +$as_echo "$hardcode_action" >&6; } + +if test relink = "$hardcode_action" || + test yes = "$inherit_rpath"; then + # Fast installation is not supported + enable_fast_install=no +elif test yes = "$shlibpath_overrides_runpath" || + test no = "$enable_shared"; then + # Fast installation is not necessary + enable_fast_install=needless +fi + + + + + + + if test yes != "$enable_dlopen"; then + enable_dlopen=unknown + enable_dlopen_self=unknown + enable_dlopen_self_static=unknown +else + lt_cv_dlopen=no + lt_cv_dlopen_libs= + + case $host_os in + beos*) + lt_cv_dlopen=load_add_on + lt_cv_dlopen_libs= + lt_cv_dlopen_self=yes + ;; + + mingw* | pw32* | cegcc*) + lt_cv_dlopen=LoadLibrary + lt_cv_dlopen_libs= + ;; + + cygwin*) + lt_cv_dlopen=dlopen + lt_cv_dlopen_libs= + ;; + + darwin*) + # if libdl is installed we need to link against it + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5 +$as_echo_n "checking for dlopen in -ldl... " >&6; } +if ${ac_cv_lib_dl_dlopen+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-ldl $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char dlopen (); +int +main () +{ +return dlopen (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_dl_dlopen=yes +else + ac_cv_lib_dl_dlopen=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5 +$as_echo "$ac_cv_lib_dl_dlopen" >&6; } +if test "x$ac_cv_lib_dl_dlopen" = xyes; then : + lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl +else + + lt_cv_dlopen=dyld + lt_cv_dlopen_libs= + lt_cv_dlopen_self=yes + +fi + + ;; + + tpf*) + # Don't try to run any link tests for TPF. We know it's impossible + # because TPF is a cross-compiler, and we know how we open DSOs. + lt_cv_dlopen=dlopen + lt_cv_dlopen_libs= + lt_cv_dlopen_self=no + ;; + + *) + ac_fn_c_check_func "$LINENO" "shl_load" "ac_cv_func_shl_load" +if test "x$ac_cv_func_shl_load" = xyes; then : + lt_cv_dlopen=shl_load +else + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for shl_load in -ldld" >&5 +$as_echo_n "checking for shl_load in -ldld... " >&6; } +if ${ac_cv_lib_dld_shl_load+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-ldld $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char shl_load (); +int +main () +{ +return shl_load (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_dld_shl_load=yes +else + ac_cv_lib_dld_shl_load=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_shl_load" >&5 +$as_echo "$ac_cv_lib_dld_shl_load" >&6; } +if test "x$ac_cv_lib_dld_shl_load" = xyes; then : + lt_cv_dlopen=shl_load lt_cv_dlopen_libs=-ldld +else + ac_fn_c_check_func "$LINENO" "dlopen" "ac_cv_func_dlopen" +if test "x$ac_cv_func_dlopen" = xyes; then : + lt_cv_dlopen=dlopen +else + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5 +$as_echo_n "checking for dlopen in -ldl... " >&6; } +if ${ac_cv_lib_dl_dlopen+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-ldl $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char dlopen (); +int +main () +{ +return dlopen (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_dl_dlopen=yes +else + ac_cv_lib_dl_dlopen=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5 +$as_echo "$ac_cv_lib_dl_dlopen" >&6; } +if test "x$ac_cv_lib_dl_dlopen" = xyes; then : + lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl +else + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -lsvld" >&5 +$as_echo_n "checking for dlopen in -lsvld... " >&6; } +if ${ac_cv_lib_svld_dlopen+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-lsvld $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char dlopen (); +int +main () +{ +return dlopen (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_svld_dlopen=yes +else + ac_cv_lib_svld_dlopen=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_svld_dlopen" >&5 +$as_echo "$ac_cv_lib_svld_dlopen" >&6; } +if test "x$ac_cv_lib_svld_dlopen" = xyes; then : + lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-lsvld +else + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dld_link in -ldld" >&5 +$as_echo_n "checking for dld_link in -ldld... " >&6; } +if ${ac_cv_lib_dld_dld_link+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-ldld $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char dld_link (); +int +main () +{ +return dld_link (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_dld_dld_link=yes +else + ac_cv_lib_dld_dld_link=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_dld_link" >&5 +$as_echo "$ac_cv_lib_dld_dld_link" >&6; } +if test "x$ac_cv_lib_dld_dld_link" = xyes; then : + lt_cv_dlopen=dld_link lt_cv_dlopen_libs=-ldld +fi + + +fi + + +fi + + +fi + + +fi + + +fi + + ;; + esac + + if test no = "$lt_cv_dlopen"; then + enable_dlopen=no + else + enable_dlopen=yes + fi + + case $lt_cv_dlopen in + dlopen) + save_CPPFLAGS=$CPPFLAGS + test yes = "$ac_cv_header_dlfcn_h" && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H" + + save_LDFLAGS=$LDFLAGS + wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\" + + save_LIBS=$LIBS + LIBS="$lt_cv_dlopen_libs $LIBS" + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a program can dlopen itself" >&5 +$as_echo_n "checking whether a program can dlopen itself... " >&6; } +if ${lt_cv_dlopen_self+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test yes = "$cross_compiling"; then : + lt_cv_dlopen_self=cross +else + lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 + lt_status=$lt_dlunknown + cat > conftest.$ac_ext <<_LT_EOF +#line $LINENO "configure" +#include "confdefs.h" + +#if HAVE_DLFCN_H +#include +#endif + +#include + +#ifdef RTLD_GLOBAL +# define LT_DLGLOBAL RTLD_GLOBAL +#else +# ifdef DL_GLOBAL +# define LT_DLGLOBAL DL_GLOBAL +# else +# define LT_DLGLOBAL 0 +# endif +#endif + +/* We may have to define LT_DLLAZY_OR_NOW in the command line if we + find out it does not work in some platform. */ +#ifndef LT_DLLAZY_OR_NOW +# ifdef RTLD_LAZY +# define LT_DLLAZY_OR_NOW RTLD_LAZY +# else +# ifdef DL_LAZY +# define LT_DLLAZY_OR_NOW DL_LAZY +# else +# ifdef RTLD_NOW +# define LT_DLLAZY_OR_NOW RTLD_NOW +# else +# ifdef DL_NOW +# define LT_DLLAZY_OR_NOW DL_NOW +# else +# define LT_DLLAZY_OR_NOW 0 +# endif +# endif +# endif +# endif +#endif + +/* When -fvisibility=hidden is used, assume the code has been annotated + correspondingly for the symbols needed. */ +#if defined __GNUC__ && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3)) +int fnord () __attribute__((visibility("default"))); +#endif + +int fnord () { return 42; } +int main () +{ + void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW); + int status = $lt_dlunknown; + + if (self) + { + if (dlsym (self,"fnord")) status = $lt_dlno_uscore; + else + { + if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore; + else puts (dlerror ()); + } + /* dlclose (self); */ + } + else + puts (dlerror ()); + + return status; +} +_LT_EOF + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5 + (eval $ac_link) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } && test -s "conftest$ac_exeext" 2>/dev/null; then + (./conftest; exit; ) >&5 2>/dev/null + lt_status=$? + case x$lt_status in + x$lt_dlno_uscore) lt_cv_dlopen_self=yes ;; + x$lt_dlneed_uscore) lt_cv_dlopen_self=yes ;; + x$lt_dlunknown|x*) lt_cv_dlopen_self=no ;; + esac + else : + # compilation failed + lt_cv_dlopen_self=no + fi +fi +rm -fr conftest* + + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self" >&5 +$as_echo "$lt_cv_dlopen_self" >&6; } + + if test yes = "$lt_cv_dlopen_self"; then + wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\" + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a statically linked program can dlopen itself" >&5 +$as_echo_n "checking whether a statically linked program can dlopen itself... " >&6; } +if ${lt_cv_dlopen_self_static+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test yes = "$cross_compiling"; then : + lt_cv_dlopen_self_static=cross +else + lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 + lt_status=$lt_dlunknown + cat > conftest.$ac_ext <<_LT_EOF +#line $LINENO "configure" +#include "confdefs.h" + +#if HAVE_DLFCN_H +#include +#endif + +#include + +#ifdef RTLD_GLOBAL +# define LT_DLGLOBAL RTLD_GLOBAL +#else +# ifdef DL_GLOBAL +# define LT_DLGLOBAL DL_GLOBAL +# else +# define LT_DLGLOBAL 0 +# endif +#endif + +/* We may have to define LT_DLLAZY_OR_NOW in the command line if we + find out it does not work in some platform. */ +#ifndef LT_DLLAZY_OR_NOW +# ifdef RTLD_LAZY +# define LT_DLLAZY_OR_NOW RTLD_LAZY +# else +# ifdef DL_LAZY +# define LT_DLLAZY_OR_NOW DL_LAZY +# else +# ifdef RTLD_NOW +# define LT_DLLAZY_OR_NOW RTLD_NOW +# else +# ifdef DL_NOW +# define LT_DLLAZY_OR_NOW DL_NOW +# else +# define LT_DLLAZY_OR_NOW 0 +# endif +# endif +# endif +# endif +#endif + +/* When -fvisibility=hidden is used, assume the code has been annotated + correspondingly for the symbols needed. */ +#if defined __GNUC__ && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3)) +int fnord () __attribute__((visibility("default"))); +#endif + +int fnord () { return 42; } +int main () +{ + void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW); + int status = $lt_dlunknown; + + if (self) + { + if (dlsym (self,"fnord")) status = $lt_dlno_uscore; + else + { + if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore; + else puts (dlerror ()); + } + /* dlclose (self); */ + } + else + puts (dlerror ()); + + return status; +} +_LT_EOF + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5 + (eval $ac_link) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } && test -s "conftest$ac_exeext" 2>/dev/null; then + (./conftest; exit; ) >&5 2>/dev/null + lt_status=$? + case x$lt_status in + x$lt_dlno_uscore) lt_cv_dlopen_self_static=yes ;; + x$lt_dlneed_uscore) lt_cv_dlopen_self_static=yes ;; + x$lt_dlunknown|x*) lt_cv_dlopen_self_static=no ;; + esac + else : + # compilation failed + lt_cv_dlopen_self_static=no + fi +fi +rm -fr conftest* + + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self_static" >&5 +$as_echo "$lt_cv_dlopen_self_static" >&6; } + fi + + CPPFLAGS=$save_CPPFLAGS + LDFLAGS=$save_LDFLAGS + LIBS=$save_LIBS + ;; + esac + + case $lt_cv_dlopen_self in + yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;; + *) enable_dlopen_self=unknown ;; + esac + + case $lt_cv_dlopen_self_static in + yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;; + *) enable_dlopen_self_static=unknown ;; + esac +fi + + + + + + + + + + + + + + + + + +striplib= +old_striplib= +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether stripping libraries is possible" >&5 +$as_echo_n "checking whether stripping libraries is possible... " >&6; } +if test -n "$STRIP" && $STRIP -V 2>&1 | $GREP "GNU strip" >/dev/null; then + test -z "$old_striplib" && old_striplib="$STRIP --strip-debug" + test -z "$striplib" && striplib="$STRIP --strip-unneeded" + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } +else +# FIXME - insert some real tests, host_os isn't really good enough + case $host_os in + darwin*) + if test -n "$STRIP"; then + striplib="$STRIP -x" + old_striplib="$STRIP -S" + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + fi + ;; + *) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + ;; + esac +fi + + + + + + + + + + + + + # Report what library types will actually be built + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if libtool supports shared libraries" >&5 +$as_echo_n "checking if libtool supports shared libraries... " >&6; } + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $can_build_shared" >&5 +$as_echo "$can_build_shared" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build shared libraries" >&5 +$as_echo_n "checking whether to build shared libraries... " >&6; } + test no = "$can_build_shared" && enable_shared=no + + # On AIX, shared libraries and static libraries use the same namespace, and + # are all built from PIC. + case $host_os in + aix3*) + test yes = "$enable_shared" && enable_static=no + if test -n "$RANLIB"; then + archive_cmds="$archive_cmds~\$RANLIB \$lib" + postinstall_cmds='$RANLIB $lib' + fi + ;; + + aix[4-9]*) + if test ia64 != "$host_cpu"; then + case $enable_shared,$with_aix_soname,$aix_use_runtimelinking in + yes,aix,yes) ;; # shared object as lib.so file only + yes,svr4,*) ;; # shared object as lib.so archive member only + yes,*) enable_static=no ;; # shared object in lib.a archive as well + esac + fi + ;; + esac + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_shared" >&5 +$as_echo "$enable_shared" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build static libraries" >&5 +$as_echo_n "checking whether to build static libraries... " >&6; } + # Make sure either enable_shared or enable_static is yes. + test yes = "$enable_shared" || enable_static=yes + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_static" >&5 +$as_echo "$enable_static" >&6; } + + + + +fi +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + +CC=$lt_save_CC + + + + + + + + + + + + + + + + ac_config_commands="$ac_config_commands libtool" + + + + +# Only expand once: + + + + +lang_plugins="\ + cc \ + golang \ + lua \ + ocaml \ + perl \ + python \ + ruby \ + rust \ + sh \ + tcl \ + " +non_lang_plugins="\ + cdi \ + curl \ + data \ + eval \ + example1 \ + example2 \ + example3 \ + example4 \ + file \ + floppy \ + full \ + guestfs \ + gzip \ + info \ + iso \ + libvirt \ + linuxdisk \ + memory \ + nbd \ + null \ + ondemand \ + partitioning \ + pattern \ + random \ + split \ + ssh \ + streaming \ + tar \ + tmpdisk \ + torrent \ + vddk \ + zero \ + " +plugins="$(echo $(printf %s\\n $lang_plugins $non_lang_plugins | sort -u))" +filters="\ + blocksize \ + cache \ + cacheextents \ + cow \ + ddrescue \ + delay \ + error \ + exitlast \ + ext2 \ + extentlist \ + fua \ + gzip \ + ip \ + limit \ + log \ + nocache \ + noextents \ + nofilter \ + noparallel \ + nozero \ + offset \ + partition \ + pause \ + rate \ + readahead \ + retry \ + stats \ + swab \ + tar \ + tls-fallback \ + truncate \ + xz \ + " + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a sed that does not truncate output" >&5 +$as_echo_n "checking for a sed that does not truncate output... " >&6; } +if ${ac_cv_path_SED+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/ + for ac_i in 1 2 3 4 5 6 7; do + ac_script="$ac_script$as_nl$ac_script" + done + echo "$ac_script" 2>/dev/null | sed 99q >conftest.sed + { ac_script=; unset ac_script;} + if test -z "$SED"; then + ac_path_SED_found=false + # Loop through the user's path and test for each of PROGNAME-LIST + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_prog in sed gsed; do + for ac_exec_ext in '' $ac_executable_extensions; do + ac_path_SED="$as_dir/$ac_prog$ac_exec_ext" + as_fn_executable_p "$ac_path_SED" || continue +# Check for GNU ac_path_SED and select it if it is found. + # Check for GNU $ac_path_SED +case `"$ac_path_SED" --version 2>&1` in +*GNU*) + ac_cv_path_SED="$ac_path_SED" ac_path_SED_found=:;; +*) + ac_count=0 + $as_echo_n 0123456789 >"conftest.in" + while : + do + cat "conftest.in" "conftest.in" >"conftest.tmp" + mv "conftest.tmp" "conftest.in" + cp "conftest.in" "conftest.nl" + $as_echo '' >> "conftest.nl" + "$ac_path_SED" -f conftest.sed < "conftest.nl" >"conftest.out" 2>/dev/null || break + diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break + as_fn_arith $ac_count + 1 && ac_count=$as_val + if test $ac_count -gt ${ac_path_SED_max-0}; then + # Best one so far, save it but keep looking for a better one + ac_cv_path_SED="$ac_path_SED" + ac_path_SED_max=$ac_count + fi + # 10*(2^10) chars as input seems more than enough + test $ac_count -gt 10 && break + done + rm -f conftest.in conftest.tmp conftest.nl conftest.out;; +esac + + $ac_path_SED_found && break 3 + done + done + done +IFS=$as_save_IFS + if test -z "$ac_cv_path_SED"; then + as_fn_error $? "no acceptable sed could be found in \$PATH" "$LINENO" 5 + fi +else + ac_cv_path_SED=$SED +fi + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_SED" >&5 +$as_echo "$ac_cv_path_SED" >&6; } + SED="$ac_cv_path_SED" + rm -f conftest.sed + + + case $ac_cv_prog_cc_stdc in #( + no) : + ac_cv_prog_cc_c99=no; ac_cv_prog_cc_c89=no ;; #( + *) : + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C99" >&5 +$as_echo_n "checking for $CC option to accept ISO C99... " >&6; } +if ${ac_cv_prog_cc_c99+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_cv_prog_cc_c99=no +ac_save_CC=$CC +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +#include +#include +#include +#include + +// Check varargs macros. These examples are taken from C99 6.10.3.5. +#define debug(...) fprintf (stderr, __VA_ARGS__) +#define showlist(...) puts (#__VA_ARGS__) +#define report(test,...) ((test) ? puts (#test) : printf (__VA_ARGS__)) +static void +test_varargs_macros (void) +{ + int x = 1234; + int y = 5678; + debug ("Flag"); + debug ("X = %d\n", x); + showlist (The first, second, and third items.); + report (x>y, "x is %d but y is %d", x, y); +} + +// Check long long types. +#define BIG64 18446744073709551615ull +#define BIG32 4294967295ul +#define BIG_OK (BIG64 / BIG32 == 4294967297ull && BIG64 % BIG32 == 0) +#if !BIG_OK + your preprocessor is broken; +#endif +#if BIG_OK +#else + your preprocessor is broken; +#endif +static long long int bignum = -9223372036854775807LL; +static unsigned long long int ubignum = BIG64; + +struct incomplete_array +{ + int datasize; + double data[]; +}; + +struct named_init { + int number; + const wchar_t *name; + double average; +}; + +typedef const char *ccp; + +static inline int +test_restrict (ccp restrict text) +{ + // See if C++-style comments work. + // Iterate through items via the restricted pointer. + // Also check for declarations in for loops. + for (unsigned int i = 0; *(text+i) != '\0'; ++i) + continue; + return 0; +} + +// Check varargs and va_copy. +static void +test_varargs (const char *format, ...) +{ + va_list args; + va_start (args, format); + va_list args_copy; + va_copy (args_copy, args); + + const char *str; + int number; + float fnumber; + + while (*format) + { + switch (*format++) + { + case 's': // string + str = va_arg (args_copy, const char *); + break; + case 'd': // int + number = va_arg (args_copy, int); + break; + case 'f': // float + fnumber = va_arg (args_copy, double); + break; + default: + break; + } + } + va_end (args_copy); + va_end (args); +} + +int +main () +{ + + // Check bool. + _Bool success = false; + + // Check restrict. + if (test_restrict ("String literal") == 0) + success = true; + char *restrict newvar = "Another string"; + + // Check varargs. + test_varargs ("s, d' f .", "string", 65, 34.234); + test_varargs_macros (); + + // Check flexible array members. + struct incomplete_array *ia = + malloc (sizeof (struct incomplete_array) + (sizeof (double) * 10)); + ia->datasize = 10; + for (int i = 0; i < ia->datasize; ++i) + ia->data[i] = i * 1.234; + + // Check named initializers. + struct named_init ni = { + .number = 34, + .name = L"Test wide string", + .average = 543.34343, + }; + + ni.number = 58; + + int dynamic_array[ni.number]; + dynamic_array[ni.number - 1] = 543; + + // work around unused variable warnings + return (!success || bignum == 0LL || ubignum == 0uLL || newvar[0] == 'x' + || dynamic_array[ni.number - 1] != 543); + + ; + return 0; +} +_ACEOF +for ac_arg in '' -std=gnu99 -std=c99 -c99 -AC99 -D_STDC_C99= -qlanglvl=extc99 +do + CC="$ac_save_CC $ac_arg" + if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_prog_cc_c99=$ac_arg +fi +rm -f core conftest.err conftest.$ac_objext + test "x$ac_cv_prog_cc_c99" != "xno" && break +done +rm -f conftest.$ac_ext +CC=$ac_save_CC + +fi +# AC_CACHE_VAL +case "x$ac_cv_prog_cc_c99" in + x) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5 +$as_echo "none needed" >&6; } ;; + xno) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5 +$as_echo "unsupported" >&6; } ;; + *) + CC="$CC $ac_cv_prog_cc_c99" + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c99" >&5 +$as_echo "$ac_cv_prog_cc_c99" >&6; } ;; +esac +if test "x$ac_cv_prog_cc_c99" != xno; then : + ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c99 +else + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5 +$as_echo_n "checking for $CC option to accept ISO C89... " >&6; } +if ${ac_cv_prog_cc_c89+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_cv_prog_cc_c89=no +ac_save_CC=$CC +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +#include +struct stat; +/* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */ +struct buf { int x; }; +FILE * (*rcsopen) (struct buf *, struct stat *, int); +static char *e (p, i) + char **p; + int i; +{ + return p[i]; +} +static char *f (char * (*g) (char **, int), char **p, ...) +{ + char *s; + va_list v; + va_start (v,p); + s = g (p, va_arg (v,int)); + va_end (v); + return s; +} + +/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default. It has + function prototypes and stuff, but not '\xHH' hex character constants. + These don't provoke an error unfortunately, instead are silently treated + as 'x'. The following induces an error, until -std is added to get + proper ANSI mode. Curiously '\x00'!='x' always comes out true, for an + array size at least. It's necessary to write '\x00'==0 to get something + that's true only with -std. */ +int osf4_cc_array ['\x00' == 0 ? 1 : -1]; + +/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters + inside strings and character constants. */ +#define FOO(x) 'x' +int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1]; + +int test (int i, double x); +struct s1 {int (*f) (int a);}; +struct s2 {int (*f) (double a);}; +int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int); +int argc; +char **argv; +int +main () +{ +return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]; + ; + return 0; +} +_ACEOF +for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \ + -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__" +do + CC="$ac_save_CC $ac_arg" + if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_prog_cc_c89=$ac_arg +fi +rm -f core conftest.err conftest.$ac_objext + test "x$ac_cv_prog_cc_c89" != "xno" && break +done +rm -f conftest.$ac_ext +CC=$ac_save_CC + +fi +# AC_CACHE_VAL +case "x$ac_cv_prog_cc_c89" in + x) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5 +$as_echo "none needed" >&6; } ;; + xno) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5 +$as_echo "unsupported" >&6; } ;; + *) + CC="$CC $ac_cv_prog_cc_c89" + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5 +$as_echo "$ac_cv_prog_cc_c89" >&6; } ;; +esac +if test "x$ac_cv_prog_cc_c89" != xno; then : + ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c89 +else + ac_cv_prog_cc_stdc=no +fi + +fi + ;; +esac + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO Standard C" >&5 +$as_echo_n "checking for $CC option to accept ISO Standard C... " >&6; } + if ${ac_cv_prog_cc_stdc+:} false; then : + $as_echo_n "(cached) " >&6 +fi + + case $ac_cv_prog_cc_stdc in #( + no) : + { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5 +$as_echo "unsupported" >&6; } ;; #( + '') : + { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5 +$as_echo "none needed" >&6; } ;; #( + *) : + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_stdc" >&5 +$as_echo "$ac_cv_prog_cc_stdc" >&6; } ;; +esac + + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5 +$as_echo_n "checking how to run the C preprocessor... " >&6; } +# On Suns, sometimes $CPP names a directory. +if test -n "$CPP" && test -d "$CPP"; then + CPP= +fi +if test -z "$CPP"; then + if ${ac_cv_prog_CPP+:} false; then : + $as_echo_n "(cached) " >&6 +else + # Double quotes because CPP needs to be expanded + for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp" + do + ac_preproc_ok=false +for ac_c_preproc_warn_flag in '' yes +do + # Use a header file that comes with gcc, so configuring glibc + # with a fresh cross-compiler works. + # Prefer to if __STDC__ is defined, since + # exists even on freestanding compilers. + # On the NeXT, cc -E runs the code through the compiler's parser, + # not just through cpp. "Syntax error" is here to catch this case. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#ifdef __STDC__ +# include +#else +# include +#endif + Syntax error +_ACEOF +if ac_fn_c_try_cpp "$LINENO"; then : + +else + # Broken: fails on valid input. +continue +fi +rm -f conftest.err conftest.i conftest.$ac_ext + + # OK, works on sane cases. Now check whether nonexistent headers + # can be detected and how. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +_ACEOF +if ac_fn_c_try_cpp "$LINENO"; then : + # Broken: success on invalid input. +continue +else + # Passes both tests. +ac_preproc_ok=: +break +fi +rm -f conftest.err conftest.i conftest.$ac_ext + +done +# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped. +rm -f conftest.i conftest.err conftest.$ac_ext +if $ac_preproc_ok; then : + break +fi + + done + ac_cv_prog_CPP=$CPP + +fi + CPP=$ac_cv_prog_CPP +else + ac_cv_prog_CPP=$CPP +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5 +$as_echo "$CPP" >&6; } +ac_preproc_ok=false +for ac_c_preproc_warn_flag in '' yes +do + # Use a header file that comes with gcc, so configuring glibc + # with a fresh cross-compiler works. + # Prefer to if __STDC__ is defined, since + # exists even on freestanding compilers. + # On the NeXT, cc -E runs the code through the compiler's parser, + # not just through cpp. "Syntax error" is here to catch this case. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#ifdef __STDC__ +# include +#else +# include +#endif + Syntax error +_ACEOF +if ac_fn_c_try_cpp "$LINENO"; then : + +else + # Broken: fails on valid input. +continue +fi +rm -f conftest.err conftest.i conftest.$ac_ext + + # OK, works on sane cases. Now check whether nonexistent headers + # can be detected and how. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +_ACEOF +if ac_fn_c_try_cpp "$LINENO"; then : + # Broken: success on invalid input. +continue +else + # Passes both tests. +ac_preproc_ok=: +break +fi +rm -f conftest.err conftest.i conftest.$ac_ext + +done +# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped. +rm -f conftest.i conftest.err conftest.$ac_ext +if $ac_preproc_ok; then : + +else + { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "C preprocessor \"$CPP\" fails sanity check +See \`config.log' for more details" "$LINENO" 5; } +fi + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + +# Check whether --enable-largefile was given. +if test "${enable_largefile+set}" = set; then : + enableval=$enable_largefile; +fi + +if test "$enable_largefile" != no; then + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for special C compiler options needed for large files" >&5 +$as_echo_n "checking for special C compiler options needed for large files... " >&6; } +if ${ac_cv_sys_largefile_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_cv_sys_largefile_CC=no + if test "$GCC" != yes; then + ac_save_CC=$CC + while :; do + # IRIX 6.2 and later do not support large files by default, + # so use the C compiler's -n32 option if that helps. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include + /* Check that off_t can represent 2**63 - 1 correctly. + We can't simply define LARGE_OFF_T to be 9223372036854775807, + since some C++ compilers masquerading as C compilers + incorrectly reject 9223372036854775807. */ +#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62)) + int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721 + && LARGE_OFF_T % 2147483647 == 1) + ? 1 : -1]; +int +main () +{ + + ; + return 0; +} +_ACEOF + if ac_fn_c_try_compile "$LINENO"; then : + break +fi +rm -f core conftest.err conftest.$ac_objext + CC="$CC -n32" + if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_sys_largefile_CC=' -n32'; break +fi +rm -f core conftest.err conftest.$ac_objext + break + done + CC=$ac_save_CC + rm -f conftest.$ac_ext + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sys_largefile_CC" >&5 +$as_echo "$ac_cv_sys_largefile_CC" >&6; } + if test "$ac_cv_sys_largefile_CC" != no; then + CC=$CC$ac_cv_sys_largefile_CC + fi + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _FILE_OFFSET_BITS value needed for large files" >&5 +$as_echo_n "checking for _FILE_OFFSET_BITS value needed for large files... " >&6; } +if ${ac_cv_sys_file_offset_bits+:} false; then : + $as_echo_n "(cached) " >&6 +else + while :; do + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include + /* Check that off_t can represent 2**63 - 1 correctly. + We can't simply define LARGE_OFF_T to be 9223372036854775807, + since some C++ compilers masquerading as C compilers + incorrectly reject 9223372036854775807. */ +#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62)) + int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721 + && LARGE_OFF_T % 2147483647 == 1) + ? 1 : -1]; +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_sys_file_offset_bits=no; break +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#define _FILE_OFFSET_BITS 64 +#include + /* Check that off_t can represent 2**63 - 1 correctly. + We can't simply define LARGE_OFF_T to be 9223372036854775807, + since some C++ compilers masquerading as C compilers + incorrectly reject 9223372036854775807. */ +#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62)) + int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721 + && LARGE_OFF_T % 2147483647 == 1) + ? 1 : -1]; +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_sys_file_offset_bits=64; break +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + ac_cv_sys_file_offset_bits=unknown + break +done +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sys_file_offset_bits" >&5 +$as_echo "$ac_cv_sys_file_offset_bits" >&6; } +case $ac_cv_sys_file_offset_bits in #( + no | unknown) ;; + *) +cat >>confdefs.h <<_ACEOF +#define _FILE_OFFSET_BITS $ac_cv_sys_file_offset_bits +_ACEOF +;; +esac +rm -rf conftest* + if test $ac_cv_sys_file_offset_bits = unknown; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _LARGE_FILES value needed for large files" >&5 +$as_echo_n "checking for _LARGE_FILES value needed for large files... " >&6; } +if ${ac_cv_sys_large_files+:} false; then : + $as_echo_n "(cached) " >&6 +else + while :; do + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include + /* Check that off_t can represent 2**63 - 1 correctly. + We can't simply define LARGE_OFF_T to be 9223372036854775807, + since some C++ compilers masquerading as C compilers + incorrectly reject 9223372036854775807. */ +#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62)) + int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721 + && LARGE_OFF_T % 2147483647 == 1) + ? 1 : -1]; +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_sys_large_files=no; break +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#define _LARGE_FILES 1 +#include + /* Check that off_t can represent 2**63 - 1 correctly. + We can't simply define LARGE_OFF_T to be 9223372036854775807, + since some C++ compilers masquerading as C compilers + incorrectly reject 9223372036854775807. */ +#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62)) + int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721 + && LARGE_OFF_T % 2147483647 == 1) + ? 1 : -1]; +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_sys_large_files=1; break +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + ac_cv_sys_large_files=unknown + break +done +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sys_large_files" >&5 +$as_echo "$ac_cv_sys_large_files" >&6; } +case $ac_cv_sys_large_files in #( + no | unknown) ;; + *) +cat >>confdefs.h <<_ACEOF +#define _LARGE_FILES $ac_cv_sys_large_files +_ACEOF +;; +esac +rm -rf conftest* + fi + + +fi + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for function prototypes" >&5 +$as_echo_n "checking for function prototypes... " >&6; } +if test "$ac_cv_prog_cc_c89" != no; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + +$as_echo "#define PROTOTYPES 1" >>confdefs.h + + +$as_echo "#define __PROTOTYPES 1" >>confdefs.h + +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + +test "x$U" != "x" && as_fn_error $? "Compiler not ANSI compliant" "$LINENO" 5 + + + + + +cat >>confdefs.h <<_ACEOF +#define host_cpu "$host_cpu" +_ACEOF + + + +cat >>confdefs.h <<_ACEOF +#define host_os "$host_os" +_ACEOF + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether byte ordering is bigendian" >&5 +$as_echo_n "checking whether byte ordering is bigendian... " >&6; } +if ${ac_cv_c_bigendian+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_cv_c_bigendian=unknown + # See if we're dealing with a universal compiler. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#ifndef __APPLE_CC__ + not a universal capable compiler + #endif + typedef int dummy; + +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + + # Check for potential -arch flags. It is not universal unless + # there are at least two -arch flags with different values. + ac_arch= + ac_prev= + for ac_word in $CC $CFLAGS $CPPFLAGS $LDFLAGS; do + if test -n "$ac_prev"; then + case $ac_word in + i?86 | x86_64 | ppc | ppc64) + if test -z "$ac_arch" || test "$ac_arch" = "$ac_word"; then + ac_arch=$ac_word + else + ac_cv_c_bigendian=universal + break + fi + ;; + esac + ac_prev= + elif test "x$ac_word" = "x-arch"; then + ac_prev=arch + fi + done +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + if test $ac_cv_c_bigendian = unknown; then + # See if sys/param.h defines the BYTE_ORDER macro. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include + #include + +int +main () +{ +#if ! (defined BYTE_ORDER && defined BIG_ENDIAN \ + && defined LITTLE_ENDIAN && BYTE_ORDER && BIG_ENDIAN \ + && LITTLE_ENDIAN) + bogus endian macros + #endif + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + # It does; now see whether it defined to BIG_ENDIAN or not. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include + #include + +int +main () +{ +#if BYTE_ORDER != BIG_ENDIAN + not big endian + #endif + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_c_bigendian=yes +else + ac_cv_c_bigendian=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + fi + if test $ac_cv_c_bigendian = unknown; then + # See if defines _LITTLE_ENDIAN or _BIG_ENDIAN (e.g., Solaris). + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include + +int +main () +{ +#if ! (defined _LITTLE_ENDIAN || defined _BIG_ENDIAN) + bogus endian macros + #endif + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + # It does; now see whether it defined to _BIG_ENDIAN or not. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include + +int +main () +{ +#ifndef _BIG_ENDIAN + not big endian + #endif + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_c_bigendian=yes +else + ac_cv_c_bigendian=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + fi + if test $ac_cv_c_bigendian = unknown; then + # Compile a test program. + if test "$cross_compiling" = yes; then : + # Try to guess by grepping values from an object file. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +short int ascii_mm[] = + { 0x4249, 0x4765, 0x6E44, 0x6961, 0x6E53, 0x7953, 0 }; + short int ascii_ii[] = + { 0x694C, 0x5454, 0x656C, 0x6E45, 0x6944, 0x6E61, 0 }; + int use_ascii (int i) { + return ascii_mm[i] + ascii_ii[i]; + } + short int ebcdic_ii[] = + { 0x89D3, 0xE3E3, 0x8593, 0x95C5, 0x89C4, 0x9581, 0 }; + short int ebcdic_mm[] = + { 0xC2C9, 0xC785, 0x95C4, 0x8981, 0x95E2, 0xA8E2, 0 }; + int use_ebcdic (int i) { + return ebcdic_mm[i] + ebcdic_ii[i]; + } + extern int foo; + +int +main () +{ +return use_ascii (foo) == use_ebcdic (foo); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + if grep BIGenDianSyS conftest.$ac_objext >/dev/null; then + ac_cv_c_bigendian=yes + fi + if grep LiTTleEnDian conftest.$ac_objext >/dev/null ; then + if test "$ac_cv_c_bigendian" = unknown; then + ac_cv_c_bigendian=no + else + # finding both strings is unlikely to happen, but who knows? + ac_cv_c_bigendian=unknown + fi + fi +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$ac_includes_default +int +main () +{ + + /* Are we little or big endian? From Harbison&Steele. */ + union + { + long int l; + char c[sizeof (long int)]; + } u; + u.l = 1; + return u.c[sizeof (long int) - 1] == 1; + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_run "$LINENO"; then : + ac_cv_c_bigendian=no +else + ac_cv_c_bigendian=yes +fi +rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ + conftest.$ac_objext conftest.beam conftest.$ac_ext +fi + + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_bigendian" >&5 +$as_echo "$ac_cv_c_bigendian" >&6; } + case $ac_cv_c_bigendian in #( + yes) + $as_echo "#define WORDS_BIGENDIAN 1" >>confdefs.h +;; #( + no) + ;; #( + universal) + +$as_echo "#define AC_APPLE_UNIVERSAL_BUILD 1" >>confdefs.h + + ;; #( + *) + as_fn_error $? "unknown endianness + presetting ac_cv_c_bigendian=no (or yes) will help" "$LINENO" 5 ;; + esac + + +ac_ext=cpp +ac_cpp='$CXXCPP $CPPFLAGS' +ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_cxx_compiler_gnu +if test -z "$CXX"; then + if test -n "$CCC"; then + CXX=$CCC + else + if test -n "$ac_tool_prefix"; then + for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC + do + # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. +set dummy $ac_tool_prefix$ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CXX+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CXX"; then + ac_cv_prog_CXX="$CXX" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CXX="$ac_tool_prefix$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CXX=$ac_cv_prog_CXX +if test -n "$CXX"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CXX" >&5 +$as_echo "$CXX" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$CXX" && break + done +fi +if test -z "$CXX"; then + ac_ct_CXX=$CXX + for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_CXX+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_CXX"; then + ac_cv_prog_ac_ct_CXX="$ac_ct_CXX" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_CXX="$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_CXX=$ac_cv_prog_ac_ct_CXX +if test -n "$ac_ct_CXX"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CXX" >&5 +$as_echo "$ac_ct_CXX" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$ac_ct_CXX" && break +done + + if test "x$ac_ct_CXX" = x; then + CXX="g++" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + CXX=$ac_ct_CXX + fi +fi + + fi +fi +# Provide some information about the compiler. +$as_echo "$as_me:${as_lineno-$LINENO}: checking for C++ compiler version" >&5 +set X $ac_compile +ac_compiler=$2 +for ac_option in --version -v -V -qversion; do + { { ac_try="$ac_compiler $ac_option >&5" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_compiler $ac_option >&5") 2>conftest.err + ac_status=$? + if test -s conftest.err; then + sed '10a\ +... rest of stderr output deleted ... + 10q' conftest.err >conftest.er1 + cat conftest.er1 >&5 + fi + rm -f conftest.er1 conftest.err + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } +done + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C++ compiler" >&5 +$as_echo_n "checking whether we are using the GNU C++ compiler... " >&6; } +if ${ac_cv_cxx_compiler_gnu+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ +#ifndef __GNUC__ + choke me +#endif + + ; + return 0; +} +_ACEOF +if ac_fn_cxx_try_compile "$LINENO"; then : + ac_compiler_gnu=yes +else + ac_compiler_gnu=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +ac_cv_cxx_compiler_gnu=$ac_compiler_gnu + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_compiler_gnu" >&5 +$as_echo "$ac_cv_cxx_compiler_gnu" >&6; } +if test $ac_compiler_gnu = yes; then + GXX=yes +else + GXX= +fi +ac_test_CXXFLAGS=${CXXFLAGS+set} +ac_save_CXXFLAGS=$CXXFLAGS +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -g" >&5 +$as_echo_n "checking whether $CXX accepts -g... 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If -brtl is somewhere in LDFLAGS, we + # have runtime linking enabled, and use it for executables. + # For shared libraries, we enable/disable runtime linking + # depending on the kind of the shared library created - + # when "with_aix_soname,aix_use_runtimelinking" is: + # "aix,no" lib.a(lib.so.V) shared, rtl:no, for executables + # "aix,yes" lib.so shared, rtl:yes, for executables + # lib.a static archive + # "both,no" lib.so.V(shr.o) shared, rtl:yes + # lib.a(lib.so.V) shared, rtl:no, for executables + # "both,yes" lib.so.V(shr.o) shared, rtl:yes, for executables + # lib.a(lib.so.V) shared, rtl:no + # "svr4,*" lib.so.V(shr.o) shared, rtl:yes, for executables + # lib.a static archive + case $host_os in aix4.[23]|aix4.[23].*|aix[5-9]*) + for ld_flag in $LDFLAGS; do + case $ld_flag in + *-brtl*) + aix_use_runtimelinking=yes + break + ;; + esac + done + if test svr4,no = "$with_aix_soname,$aix_use_runtimelinking"; then + # With aix-soname=svr4, we create the lib.so.V shared archives only, + # so we don't have lib.a shared libs to link our executables. + # We have to force runtime linking in this case. + aix_use_runtimelinking=yes + LDFLAGS="$LDFLAGS -Wl,-brtl" + fi + ;; + esac + + exp_sym_flag='-bexport' + no_entry_flag='-bnoentry' + fi + + # When large executables or shared objects are built, AIX ld can + # have problems creating the table of contents. If linking a library + # or program results in "error TOC overflow" add -mminimal-toc to + # CXXFLAGS/CFLAGS for g++/gcc. In the cases where that is not + # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS. + + archive_cmds_CXX='' + hardcode_direct_CXX=yes + hardcode_direct_absolute_CXX=yes + hardcode_libdir_separator_CXX=':' + link_all_deplibs_CXX=yes + file_list_spec_CXX='$wl-f,' + case $with_aix_soname,$aix_use_runtimelinking in + aix,*) ;; # no import file + svr4,* | *,yes) # use import file + # The Import File defines what to hardcode. + hardcode_direct_CXX=no + hardcode_direct_absolute_CXX=no + ;; + esac + + if test yes = "$GXX"; then + case $host_os in aix4.[012]|aix4.[012].*) + # We only want to do this on AIX 4.2 and lower, the check + # below for broken collect2 doesn't work under 4.3+ + collect2name=`$CC -print-prog-name=collect2` + if test -f "$collect2name" && + strings "$collect2name" | $GREP resolve_lib_name >/dev/null + then + # We have reworked collect2 + : + else + # We have old collect2 + hardcode_direct_CXX=unsupported + # It fails to find uninstalled libraries when the uninstalled + # path is not listed in the libpath. Setting hardcode_minus_L + # to unsupported forces relinking + hardcode_minus_L_CXX=yes + hardcode_libdir_flag_spec_CXX='-L$libdir' + hardcode_libdir_separator_CXX= + fi + esac + shared_flag='-shared' + if test yes = "$aix_use_runtimelinking"; then + shared_flag=$shared_flag' $wl-G' + fi + # Need to ensure runtime linking is disabled for the traditional + # shared library, or the linker may eventually find shared libraries + # /with/ Import File - we do not want to mix them. + shared_flag_aix='-shared' + shared_flag_svr4='-shared $wl-G' + else + # not using gcc + if test ia64 = "$host_cpu"; then + # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release + # chokes on -Wl,-G. The following line is correct: + shared_flag='-G' + else + if test yes = "$aix_use_runtimelinking"; then + shared_flag='$wl-G' + else + shared_flag='$wl-bM:SRE' + fi + shared_flag_aix='$wl-bM:SRE' + shared_flag_svr4='$wl-G' + fi + fi + + export_dynamic_flag_spec_CXX='$wl-bexpall' + # It seems that -bexpall does not export symbols beginning with + # underscore (_), so it is better to generate a list of symbols to + # export. + always_export_symbols_CXX=yes + if test aix,yes = "$with_aix_soname,$aix_use_runtimelinking"; then + # Warning - without using the other runtime loading flags (-brtl), + # -berok will link without error, but may produce a broken library. + # The "-G" linker flag allows undefined symbols. + no_undefined_flag_CXX='-bernotok' + # Determine the default libpath from the value encoded in an empty + # executable. + if test set = "${lt_cv_aix_libpath+set}"; then + aix_libpath=$lt_cv_aix_libpath +else + if ${lt_cv_aix_libpath__CXX+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_cxx_try_link "$LINENO"; then : + + lt_aix_libpath_sed=' + /Import File Strings/,/^$/ { + /^0/ { + s/^0 *\([^ ]*\) *$/\1/ + p + } + }' + lt_cv_aix_libpath__CXX=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` + # Check for a 64-bit object if we didn't find anything. + if test -z "$lt_cv_aix_libpath__CXX"; then + lt_cv_aix_libpath__CXX=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` + fi +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + if test -z "$lt_cv_aix_libpath__CXX"; then + lt_cv_aix_libpath__CXX=/usr/lib:/lib + fi + +fi + + aix_libpath=$lt_cv_aix_libpath__CXX +fi + + hardcode_libdir_flag_spec_CXX='$wl-blibpath:$libdir:'"$aix_libpath" + + archive_expsym_cmds_CXX='$CC -o $output_objdir/$soname $libobjs $deplibs $wl'$no_entry_flag' $compiler_flags `if test -n "$allow_undefined_flag"; then func_echo_all "$wl$allow_undefined_flag"; else :; fi` $wl'$exp_sym_flag:\$export_symbols' '$shared_flag + else + if test ia64 = "$host_cpu"; then + hardcode_libdir_flag_spec_CXX='$wl-R $libdir:/usr/lib:/lib' + allow_undefined_flag_CXX="-z nodefs" + archive_expsym_cmds_CXX="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\$wl$no_entry_flag"' $compiler_flags $wl$allow_undefined_flag '"\$wl$exp_sym_flag:\$export_symbols" + else + # Determine the default libpath from the value encoded in an + # empty executable. + if test set = "${lt_cv_aix_libpath+set}"; then + aix_libpath=$lt_cv_aix_libpath +else + if ${lt_cv_aix_libpath__CXX+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_cxx_try_link "$LINENO"; then : + + lt_aix_libpath_sed=' + /Import File Strings/,/^$/ { + /^0/ { + s/^0 *\([^ ]*\) *$/\1/ + p + } + }' + lt_cv_aix_libpath__CXX=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` + # Check for a 64-bit object if we didn't find anything. + if test -z "$lt_cv_aix_libpath__CXX"; then + lt_cv_aix_libpath__CXX=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` + fi +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + if test -z "$lt_cv_aix_libpath__CXX"; then + lt_cv_aix_libpath__CXX=/usr/lib:/lib + fi + +fi + + aix_libpath=$lt_cv_aix_libpath__CXX +fi + + hardcode_libdir_flag_spec_CXX='$wl-blibpath:$libdir:'"$aix_libpath" + # Warning - without using the other run time loading flags, + # -berok will link without error, but may produce a broken library. + no_undefined_flag_CXX=' $wl-bernotok' + allow_undefined_flag_CXX=' $wl-berok' + if test yes = "$with_gnu_ld"; then + # We only use this code for GNU lds that support --whole-archive. + whole_archive_flag_spec_CXX='$wl--whole-archive$convenience $wl--no-whole-archive' + else + # Exported symbols can be pulled into shared objects from archives + whole_archive_flag_spec_CXX='$convenience' + fi + archive_cmds_need_lc_CXX=yes + archive_expsym_cmds_CXX='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d' + # -brtl affects multiple linker settings, -berok does not and is overridden later + compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([, ]\\)%-berok\\1%g"`' + if test svr4 != "$with_aix_soname"; then + # This is similar to how AIX traditionally builds its shared + # libraries. Need -bnortl late, we may have -brtl in LDFLAGS. + archive_expsym_cmds_CXX="$archive_expsym_cmds_CXX"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname' + fi + if test aix != "$with_aix_soname"; then + archive_expsym_cmds_CXX="$archive_expsym_cmds_CXX"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! $soname($shared_archive_member_spec.o)"; if test shr_64 = "$shared_archive_member_spec"; then func_echo_all "# 64"; else func_echo_all "# 32"; fi; cat $export_symbols ) > $output_objdir/$realname.d/$shared_archive_member_spec.imp~$AR $AR_FLAGS $output_objdir/$soname $output_objdir/$realname.d/$shared_archive_member_spec.o $output_objdir/$realname.d/$shared_archive_member_spec.imp' + else + # used by -dlpreopen to get the symbols + archive_expsym_cmds_CXX="$archive_expsym_cmds_CXX"'~$MV $output_objdir/$realname.d/$soname $output_objdir' + fi + archive_expsym_cmds_CXX="$archive_expsym_cmds_CXX"'~$RM -r $output_objdir/$realname.d' + fi + fi + ;; + + beos*) + if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + allow_undefined_flag_CXX=unsupported + # Joseph Beckenbach says some releases of gcc + # support --undefined. This deserves some investigation. FIXME + archive_cmds_CXX='$CC -nostart $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + else + ld_shlibs_CXX=no + fi + ;; + + chorus*) + case $cc_basename in + *) + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + esac + ;; + + cygwin* | mingw* | pw32* | cegcc*) + case $GXX,$cc_basename in + ,cl* | no,cl*) + # Native MSVC + # hardcode_libdir_flag_spec is actually meaningless, as there is + # no search path for DLLs. + hardcode_libdir_flag_spec_CXX=' ' + allow_undefined_flag_CXX=unsupported + always_export_symbols_CXX=yes + file_list_spec_CXX='@' + # Tell ltmain to make .lib files, not .a files. + libext=lib + # Tell ltmain to make .dll files, not .so files. + shrext_cmds=.dll + # FIXME: Setting linknames here is a bad hack. + archive_cmds_CXX='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames=' + archive_expsym_cmds_CXX='if test DEF = "`$SED -n -e '\''s/^[ ]*//'\'' -e '\''/^\(;.*\)*$/d'\'' -e '\''s/^\(EXPORTS\|LIBRARY\)\([ ].*\)*$/DEF/p'\'' -e q $export_symbols`" ; then + cp "$export_symbols" "$output_objdir/$soname.def"; + echo "$tool_output_objdir$soname.def" > "$output_objdir/$soname.exp"; + else + $SED -e '\''s/^/-link -EXPORT:/'\'' < $export_symbols > $output_objdir/$soname.exp; + fi~ + $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~ + linknames=' + # The linker will not automatically build a static lib if we build a DLL. + # _LT_TAGVAR(old_archive_from_new_cmds, CXX)='true' + enable_shared_with_static_runtimes_CXX=yes + # Don't use ranlib + old_postinstall_cmds_CXX='chmod 644 $oldlib' + postlink_cmds_CXX='lt_outputfile="@OUTPUT@"~ + lt_tool_outputfile="@TOOL_OUTPUT@"~ + case $lt_outputfile in + *.exe|*.EXE) ;; + *) + lt_outputfile=$lt_outputfile.exe + lt_tool_outputfile=$lt_tool_outputfile.exe + ;; + esac~ + func_to_tool_file "$lt_outputfile"~ + if test : != "$MANIFEST_TOOL" && test -f "$lt_outputfile.manifest"; then + $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1; + $RM "$lt_outputfile.manifest"; + fi' + ;; + *) + # g++ + # _LT_TAGVAR(hardcode_libdir_flag_spec, CXX) is actually meaningless, + # as there is no search path for DLLs. + hardcode_libdir_flag_spec_CXX='-L$libdir' + export_dynamic_flag_spec_CXX='$wl--export-all-symbols' + allow_undefined_flag_CXX=unsupported + always_export_symbols_CXX=no + enable_shared_with_static_runtimes_CXX=yes + + if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then + archive_cmds_CXX='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib' + # If the export-symbols file already is a .def file, use it as + # is; otherwise, prepend EXPORTS... + archive_expsym_cmds_CXX='if test DEF = "`$SED -n -e '\''s/^[ ]*//'\'' -e '\''/^\(;.*\)*$/d'\'' -e '\''s/^\(EXPORTS\|LIBRARY\)\([ ].*\)*$/DEF/p'\'' -e q $export_symbols`" ; then + cp $export_symbols $output_objdir/$soname.def; + else + echo EXPORTS > $output_objdir/$soname.def; + cat $export_symbols >> $output_objdir/$soname.def; + fi~ + $CC -shared -nostdlib $output_objdir/$soname.def $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib' + else + ld_shlibs_CXX=no + fi + ;; + esac + ;; + darwin* | rhapsody*) + + + archive_cmds_need_lc_CXX=no + hardcode_direct_CXX=no + hardcode_automatic_CXX=yes + hardcode_shlibpath_var_CXX=unsupported + if test yes = "$lt_cv_ld_force_load"; then + whole_archive_flag_spec_CXX='`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience $wl-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`' + + else + whole_archive_flag_spec_CXX='' + fi + link_all_deplibs_CXX=yes + allow_undefined_flag_CXX=$_lt_dar_allow_undefined + case $cc_basename in + ifort*|nagfor*) _lt_dar_can_shared=yes ;; + *) _lt_dar_can_shared=$GCC ;; + esac + if test yes = "$_lt_dar_can_shared"; then + output_verbose_link_cmd=func_echo_all + archive_cmds_CXX="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dsymutil" + module_cmds_CXX="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dsymutil" + archive_expsym_cmds_CXX="sed 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dar_export_syms$_lt_dsymutil" + module_expsym_cmds_CXX="sed -e 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dar_export_syms$_lt_dsymutil" + if test yes != "$lt_cv_apple_cc_single_mod"; then + archive_cmds_CXX="\$CC -r -keep_private_externs -nostdlib -o \$lib-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$lib-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring$_lt_dsymutil" + archive_expsym_cmds_CXX="sed 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -r -keep_private_externs -nostdlib -o \$lib-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$lib-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring$_lt_dar_export_syms$_lt_dsymutil" + fi + + else + ld_shlibs_CXX=no + fi + + ;; + + os2*) + hardcode_libdir_flag_spec_CXX='-L$libdir' + hardcode_minus_L_CXX=yes + allow_undefined_flag_CXX=unsupported + shrext_cmds=.dll + archive_cmds_CXX='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~ + $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~ + $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~ + $ECHO EXPORTS >> $output_objdir/$libname.def~ + emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~ + $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ + emximp -o $lib $output_objdir/$libname.def' + archive_expsym_cmds_CXX='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~ + $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~ + $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~ + $ECHO EXPORTS >> $output_objdir/$libname.def~ + prefix_cmds="$SED"~ + if test EXPORTS = "`$SED 1q $export_symbols`"; then + prefix_cmds="$prefix_cmds -e 1d"; + fi~ + prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~ + cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~ + $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ + emximp -o $lib $output_objdir/$libname.def' + old_archive_From_new_cmds_CXX='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def' + enable_shared_with_static_runtimes_CXX=yes + ;; + + dgux*) + case $cc_basename in + ec++*) + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + ghcx*) + # Green Hills C++ Compiler + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + *) + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + esac + ;; + + freebsd2.*) + # C++ shared libraries reported to be fairly broken before + # switch to ELF + ld_shlibs_CXX=no + ;; + + freebsd-elf*) + archive_cmds_need_lc_CXX=no + ;; + + freebsd* | dragonfly*) + # FreeBSD 3 and later use GNU C++ and GNU ld with standard ELF + # conventions + ld_shlibs_CXX=yes + ;; + + haiku*) + archive_cmds_CXX='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + link_all_deplibs_CXX=yes + ;; + + hpux9*) + hardcode_libdir_flag_spec_CXX='$wl+b $wl$libdir' + hardcode_libdir_separator_CXX=: + export_dynamic_flag_spec_CXX='$wl-E' + hardcode_direct_CXX=yes + hardcode_minus_L_CXX=yes # Not in the search PATH, + # but as the default + # location of the library. + + case $cc_basename in + CC*) + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + aCC*) + archive_cmds_CXX='$RM $output_objdir/$soname~$CC -b $wl+b $wl$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib' + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + # + # There doesn't appear to be a way to prevent this compiler from + # explicitly linking system object files so we need to strip them + # from the output so that they don't get included in the library + # dependencies. + output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $EGREP "\-L"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"' + ;; + *) + if test yes = "$GXX"; then + archive_cmds_CXX='$RM $output_objdir/$soname~$CC -shared -nostdlib $pic_flag $wl+b $wl$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib' + else + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + fi + ;; + esac + ;; + + hpux10*|hpux11*) + if test no = "$with_gnu_ld"; then + hardcode_libdir_flag_spec_CXX='$wl+b $wl$libdir' + hardcode_libdir_separator_CXX=: + + case $host_cpu in + hppa*64*|ia64*) + ;; + *) + export_dynamic_flag_spec_CXX='$wl-E' + ;; + esac + fi + case $host_cpu in + hppa*64*|ia64*) + hardcode_direct_CXX=no + hardcode_shlibpath_var_CXX=no + ;; + *) + hardcode_direct_CXX=yes + hardcode_direct_absolute_CXX=yes + hardcode_minus_L_CXX=yes # Not in the search PATH, + # but as the default + # location of the library. + ;; + esac + + case $cc_basename in + CC*) + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + aCC*) + case $host_cpu in + hppa*64*) + archive_cmds_CXX='$CC -b $wl+h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + ia64*) + archive_cmds_CXX='$CC -b $wl+h $wl$soname $wl+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + *) + archive_cmds_CXX='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + esac + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + # + # There doesn't appear to be a way to prevent this compiler from + # explicitly linking system object files so we need to strip them + # from the output so that they don't get included in the library + # dependencies. + output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $GREP "\-L"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"' + ;; + *) + if test yes = "$GXX"; then + if test no = "$with_gnu_ld"; then + case $host_cpu in + hppa*64*) + archive_cmds_CXX='$CC -shared -nostdlib -fPIC $wl+h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + ia64*) + archive_cmds_CXX='$CC -shared -nostdlib $pic_flag $wl+h $wl$soname $wl+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + *) + archive_cmds_CXX='$CC -shared -nostdlib $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + esac + fi + else + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + fi + ;; + esac + ;; + + interix[3-9]*) + hardcode_direct_CXX=no + hardcode_shlibpath_var_CXX=no + hardcode_libdir_flag_spec_CXX='$wl-rpath,$libdir' + export_dynamic_flag_spec_CXX='$wl-E' + # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc. + # Instead, shared libraries are loaded at an image base (0x10000000 by + # default) and relocated if they conflict, which is a slow very memory + # consuming and fragmenting process. To avoid this, we pick a random, + # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link + # time. Moving up from 0x10000000 also allows more sbrk(2) space. + archive_cmds_CXX='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib' + archive_expsym_cmds_CXX='sed "s|^|_|" $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--retain-symbols-file,$output_objdir/$soname.expsym $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib' + ;; + irix5* | irix6*) + case $cc_basename in + CC*) + # SGI C++ + archive_cmds_CXX='$CC -shared -all -multigot $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' + + # Archives containing C++ object files must be created using + # "CC -ar", where "CC" is the IRIX C++ compiler. This is + # necessary to make sure instantiated templates are included + # in the archive. + old_archive_cmds_CXX='$CC -ar -WR,-u -o $oldlib $oldobjs' + ;; + *) + if test yes = "$GXX"; then + if test no = "$with_gnu_ld"; then + archive_cmds_CXX='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib' + else + archive_cmds_CXX='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` -o $lib' + fi + fi + link_all_deplibs_CXX=yes + ;; + esac + hardcode_libdir_flag_spec_CXX='$wl-rpath $wl$libdir' + hardcode_libdir_separator_CXX=: + inherit_rpath_CXX=yes + ;; + + linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) + case $cc_basename in + KCC*) + # Kuck and Associates, Inc. (KAI) C++ Compiler + + # KCC will only create a shared library if the output file + # ends with ".so" (or ".sl" for HP-UX), so rename the library + # to its proper name (with version) after linking. + archive_cmds_CXX='tempext=`echo $shared_ext | $SED -e '\''s/\([^()0-9A-Za-z{}]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib' + archive_expsym_cmds_CXX='tempext=`echo $shared_ext | $SED -e '\''s/\([^()0-9A-Za-z{}]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib $wl-retain-symbols-file,$export_symbols; mv \$templib $lib' + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + # + # There doesn't appear to be a way to prevent this compiler from + # explicitly linking system object files so we need to strip them + # from the output so that they don't get included in the library + # dependencies. + output_verbose_link_cmd='templist=`$CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 | $GREP "ld"`; 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+ *) # Version 6 and above use weak symbols + archive_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib' + archive_expsym_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + ;; + esac + + hardcode_libdir_flag_spec_CXX='$wl--rpath $wl$libdir' + export_dynamic_flag_spec_CXX='$wl--export-dynamic' + whole_archive_flag_spec_CXX='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive' + ;; + cxx*) + # Compaq C++ + archive_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib' + archive_expsym_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib $wl-retain-symbols-file $wl$export_symbols' + + runpath_var=LD_RUN_PATH + hardcode_libdir_flag_spec_CXX='-rpath $libdir' + hardcode_libdir_separator_CXX=: + + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + # + # There doesn't appear to be a way to prevent this compiler from + # explicitly linking system object files so we need to strip them + # from the output so that they don't get included in the library + # dependencies. + output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld .*$\)/\1/"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "X$list" | $Xsed' + ;; + xl* | mpixl* | bgxl*) + # IBM XL 8.0 on PPC, with GNU ld + hardcode_libdir_flag_spec_CXX='$wl-rpath $wl$libdir' + export_dynamic_flag_spec_CXX='$wl--export-dynamic' + archive_cmds_CXX='$CC -qmkshrobj $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + if test yes = "$supports_anon_versioning"; then + archive_expsym_cmds_CXX='echo "{ global:" > $output_objdir/$libname.ver~ + cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~ + echo "local: *; };" >> $output_objdir/$libname.ver~ + $CC -qmkshrobj $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$output_objdir/$libname.ver -o $lib' + fi + ;; + *) + case `$CC -V 2>&1 | sed 5q` in + *Sun\ C*) + # Sun C++ 5.9 + no_undefined_flag_CXX=' -zdefs' + archive_cmds_CXX='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + archive_expsym_cmds_CXX='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-retain-symbols-file $wl$export_symbols' + hardcode_libdir_flag_spec_CXX='-R$libdir' + whole_archive_flag_spec_CXX='$wl--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive' + compiler_needs_object_CXX=yes + + # Not sure whether something based on + # $CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 + # would be better. + output_verbose_link_cmd='func_echo_all' + + # Archives containing C++ object files must be created using + # "CC -xar", where "CC" is the Sun C++ compiler. This is + # necessary to make sure instantiated templates are included + # in the archive. + old_archive_cmds_CXX='$CC -xar -o $oldlib $oldobjs' + ;; + esac + ;; + esac + ;; + + lynxos*) + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + + m88k*) + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + + mvs*) + case $cc_basename in + cxx*) + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + *) + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + esac + ;; + + netbsd*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + archive_cmds_CXX='$LD -Bshareable -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags' + wlarc= + hardcode_libdir_flag_spec_CXX='-R$libdir' + hardcode_direct_CXX=yes + hardcode_shlibpath_var_CXX=no + fi + # Workaround some broken pre-1.5 toolchains + output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP conftest.$objext | $SED -e "s:-lgcc -lc -lgcc::"' + ;; + + *nto* | *qnx*) + ld_shlibs_CXX=yes + ;; + + openbsd* | bitrig*) + if test -f /usr/libexec/ld.so; then + hardcode_direct_CXX=yes + hardcode_shlibpath_var_CXX=no + hardcode_direct_absolute_CXX=yes + archive_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib' + hardcode_libdir_flag_spec_CXX='$wl-rpath,$libdir' + if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`"; then + archive_expsym_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-retain-symbols-file,$export_symbols -o $lib' + export_dynamic_flag_spec_CXX='$wl-E' + whole_archive_flag_spec_CXX=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive' + fi + output_verbose_link_cmd=func_echo_all + else + ld_shlibs_CXX=no + fi + ;; + + osf3* | osf4* | osf5*) + case $cc_basename in + KCC*) + # Kuck and Associates, Inc. (KAI) C++ Compiler + + # KCC will only create a shared library if the output file + # ends with ".so" (or ".sl" for HP-UX), so rename the library + # to its proper name (with version) after linking. + archive_cmds_CXX='tempext=`echo $shared_ext | $SED -e '\''s/\([^()0-9A-Za-z{}]\)/\\\\\1/g'\''`; templib=`echo "$lib" | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib' + + hardcode_libdir_flag_spec_CXX='$wl-rpath,$libdir' + hardcode_libdir_separator_CXX=: + + # Archives containing C++ object files must be created using + # the KAI C++ compiler. + case $host in + osf3*) old_archive_cmds_CXX='$CC -Bstatic -o $oldlib $oldobjs' ;; + *) old_archive_cmds_CXX='$CC -o $oldlib $oldobjs' ;; + esac + ;; + RCC*) + # Rational C++ 2.4.1 + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + cxx*) + case $host in + osf3*) + allow_undefined_flag_CXX=' $wl-expect_unresolved $wl\*' + archive_cmds_CXX='$CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $soname `test -n "$verstring" && func_echo_all "$wl-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' + hardcode_libdir_flag_spec_CXX='$wl-rpath $wl$libdir' + ;; 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+ esac + ;; + + psos*) + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + + sunos4*) + case $cc_basename in + CC*) + # Sun C++ 4.x + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + lcc*) + # Lucid + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + *) + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + esac + ;; + + solaris*) + case $cc_basename in + CC* | sunCC*) + # Sun C++ 4.2, 5.x and Centerline C++ + archive_cmds_need_lc_CXX=yes + no_undefined_flag_CXX=' -zdefs' + archive_cmds_CXX='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + archive_expsym_cmds_CXX='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -G$allow_undefined_flag $wl-M $wl$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp' + + hardcode_libdir_flag_spec_CXX='-R$libdir' + hardcode_shlibpath_var_CXX=no + case $host_os in + solaris2.[0-5] | solaris2.[0-5].*) ;; + *) + # The compiler driver will combine and reorder linker options, + # but understands '-z linker_flag'. + # Supported since Solaris 2.6 (maybe 2.5.1?) + whole_archive_flag_spec_CXX='-z allextract$convenience -z defaultextract' + ;; + esac + link_all_deplibs_CXX=yes + + output_verbose_link_cmd='func_echo_all' + + # Archives containing C++ object files must be created using + # "CC -xar", where "CC" is the Sun C++ compiler. This is + # necessary to make sure instantiated templates are included + # in the archive. + old_archive_cmds_CXX='$CC -xar -o $oldlib $oldobjs' + ;; + gcx*) + # Green Hills C++ Compiler + archive_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib' + + # The C++ compiler must be used to create the archive. + old_archive_cmds_CXX='$CC $LDFLAGS -archive -o $oldlib $oldobjs' + ;; + *) + # GNU C++ compiler with Solaris linker + if test yes,no = "$GXX,$with_gnu_ld"; then + no_undefined_flag_CXX=' $wl-z ${wl}defs' + if $CC --version | $GREP -v '^2\.7' > /dev/null; then + archive_cmds_CXX='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib' + archive_expsym_cmds_CXX='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -shared $pic_flag -nostdlib $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp' + + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"' + else + # g++ 2.7 appears to require '-G' NOT '-shared' on this + # platform. + archive_cmds_CXX='$CC -G -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib' + archive_expsym_cmds_CXX='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -G -nostdlib $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp' + + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + output_verbose_link_cmd='$CC -G $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"' + fi + + hardcode_libdir_flag_spec_CXX='$wl-R $wl$libdir' + case $host_os in + solaris2.[0-5] | solaris2.[0-5].*) ;; + *) + whole_archive_flag_spec_CXX='$wl-z ${wl}allextract$convenience $wl-z ${wl}defaultextract' + ;; + esac + fi + ;; + esac + ;; + + sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[01].[10]* | unixware7* | sco3.2v5.0.[024]*) + no_undefined_flag_CXX='$wl-z,text' + archive_cmds_need_lc_CXX=no + hardcode_shlibpath_var_CXX=no + runpath_var='LD_RUN_PATH' + + case $cc_basename in + CC*) + archive_cmds_CXX='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds_CXX='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + *) + archive_cmds_CXX='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds_CXX='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + esac + ;; + + sysv5* | sco3.2v5* | sco5v6*) + # Note: We CANNOT use -z defs as we might desire, because we do not + # link with -lc, and that would cause any symbols used from libc to + # always be unresolved, which means just about no library would + # ever link correctly. If we're not using GNU ld we use -z text + # though, which does catch some bad symbols but isn't as heavy-handed + # as -z defs. + no_undefined_flag_CXX='$wl-z,text' + allow_undefined_flag_CXX='$wl-z,nodefs' + archive_cmds_need_lc_CXX=no + hardcode_shlibpath_var_CXX=no + hardcode_libdir_flag_spec_CXX='$wl-R,$libdir' + hardcode_libdir_separator_CXX=':' + link_all_deplibs_CXX=yes + export_dynamic_flag_spec_CXX='$wl-Bexport' + runpath_var='LD_RUN_PATH' + + case $cc_basename in + CC*) + archive_cmds_CXX='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds_CXX='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + old_archive_cmds_CXX='$CC -Tprelink_objects $oldobjs~ + '"$old_archive_cmds_CXX" + reload_cmds_CXX='$CC -Tprelink_objects $reload_objs~ + '"$reload_cmds_CXX" + ;; + *) + archive_cmds_CXX='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds_CXX='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + esac + ;; + + tandem*) + case $cc_basename in + NCC*) + # NonStop-UX NCC 3.20 + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + *) + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + esac + ;; + + vxworks*) + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + + *) + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + esac + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs_CXX" >&5 +$as_echo "$ld_shlibs_CXX" >&6; } + test no = "$ld_shlibs_CXX" && can_build_shared=no + + GCC_CXX=$GXX + LD_CXX=$LD + + ## CAVEAT EMPTOR: + ## There is no encapsulation within the following macros, do not change + ## the running order or otherwise move them around unless you know exactly + ## what you are doing... + # Dependencies to place before and after the object being linked: +predep_objects_CXX= +postdep_objects_CXX= +predeps_CXX= +postdeps_CXX= +compiler_lib_search_path_CXX= + +cat > conftest.$ac_ext <<_LT_EOF +class Foo +{ +public: + Foo (void) { a = 0; } +private: + int a; +}; +_LT_EOF + + +_lt_libdeps_save_CFLAGS=$CFLAGS +case "$CC $CFLAGS " in #( +*\ -flto*\ *) CFLAGS="$CFLAGS -fno-lto" ;; +*\ -fwhopr*\ *) CFLAGS="$CFLAGS -fno-whopr" ;; +*\ -fuse-linker-plugin*\ *) CFLAGS="$CFLAGS -fno-use-linker-plugin" ;; +esac + +if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + # Parse the compiler output and extract the necessary + # objects, libraries and library flags. + + # Sentinel used to keep track of whether or not we are before + # the conftest object file. + pre_test_object_deps_done=no + + for p in `eval "$output_verbose_link_cmd"`; do + case $prev$p in + + -L* | -R* | -l*) + # Some compilers place space between "-{L,R}" and the path. + # Remove the space. + if test x-L = "$p" || + test x-R = "$p"; then + prev=$p + continue + fi + + # Expand the sysroot to ease extracting the directories later. + if test -z "$prev"; then + case $p in + -L*) func_stripname_cnf '-L' '' "$p"; prev=-L; p=$func_stripname_result ;; + -R*) func_stripname_cnf '-R' '' "$p"; prev=-R; p=$func_stripname_result ;; + -l*) func_stripname_cnf '-l' '' "$p"; prev=-l; p=$func_stripname_result ;; + esac + fi + case $p in + =*) func_stripname_cnf '=' '' "$p"; p=$lt_sysroot$func_stripname_result ;; + esac + if test no = "$pre_test_object_deps_done"; then + case $prev in + -L | -R) + # Internal compiler library paths should come after those + # provided the user. The postdeps already come after the + # user supplied libs so there is no need to process them. + if test -z "$compiler_lib_search_path_CXX"; then + compiler_lib_search_path_CXX=$prev$p + else + compiler_lib_search_path_CXX="${compiler_lib_search_path_CXX} $prev$p" + fi + ;; + # The "-l" case would never come before the object being + # linked, so don't bother handling this case. + esac + else + if test -z "$postdeps_CXX"; then + postdeps_CXX=$prev$p + else + postdeps_CXX="${postdeps_CXX} $prev$p" + fi + fi + prev= + ;; + + *.lto.$objext) ;; # Ignore GCC LTO objects + *.$objext) + # This assumes that the test object file only shows up + # once in the compiler output. + if test "$p" = "conftest.$objext"; then + pre_test_object_deps_done=yes + continue + fi + + if test no = "$pre_test_object_deps_done"; then + if test -z "$predep_objects_CXX"; then + predep_objects_CXX=$p + else + predep_objects_CXX="$predep_objects_CXX $p" + fi + else + if test -z "$postdep_objects_CXX"; then + postdep_objects_CXX=$p + else + postdep_objects_CXX="$postdep_objects_CXX $p" + fi + fi + ;; + + *) ;; # Ignore the rest. + + esac + done + + # Clean up. + rm -f a.out a.exe +else + echo "libtool.m4: error: problem compiling CXX test program" +fi + +$RM -f confest.$objext +CFLAGS=$_lt_libdeps_save_CFLAGS + +# PORTME: override above test on systems where it is broken +case $host_os in +interix[3-9]*) + # Interix 3.5 installs completely hosed .la files for C++, so rather than + # hack all around it, let's just trust "g++" to DTRT. + predep_objects_CXX= + postdep_objects_CXX= + postdeps_CXX= + ;; +esac + + +case " $postdeps_CXX " in +*" -lc "*) archive_cmds_need_lc_CXX=no ;; +esac + compiler_lib_search_dirs_CXX= +if test -n "${compiler_lib_search_path_CXX}"; then + compiler_lib_search_dirs_CXX=`echo " ${compiler_lib_search_path_CXX}" | $SED -e 's! -L! !g' -e 's!^ !!'` +fi + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + lt_prog_compiler_wl_CXX= +lt_prog_compiler_pic_CXX= +lt_prog_compiler_static_CXX= + + + # C++ specific cases for pic, static, wl, etc. + if test yes = "$GXX"; then + lt_prog_compiler_wl_CXX='-Wl,' + lt_prog_compiler_static_CXX='-static' + + case $host_os in + aix*) + # All AIX code is PIC. + if test ia64 = "$host_cpu"; then + # AIX 5 now supports IA64 processor + lt_prog_compiler_static_CXX='-Bstatic' + fi + lt_prog_compiler_pic_CXX='-fPIC' + ;; + + amigaos*) + case $host_cpu in + powerpc) + # see comment about AmigaOS4 .so support + lt_prog_compiler_pic_CXX='-fPIC' + ;; + m68k) + # FIXME: we need at least 68020 code to build shared libraries, but + # adding the '-m68020' flag to GCC prevents building anything better, + # like '-m68040'. + lt_prog_compiler_pic_CXX='-m68020 -resident32 -malways-restore-a4' + ;; + esac + ;; + + beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*) + # PIC is the default for these OSes. + ;; + mingw* | cygwin* | os2* | pw32* | cegcc*) + # This hack is so that the source file can tell whether it is being + # built for inclusion in a dll (and should export symbols for example). + # Although the cygwin gcc ignores -fPIC, still need this for old-style + # (--disable-auto-import) libraries + lt_prog_compiler_pic_CXX='-DDLL_EXPORT' + case $host_os in + os2*) + lt_prog_compiler_static_CXX='$wl-static' + ;; + esac + ;; + darwin* | rhapsody*) + # PIC is the default on this platform + # Common symbols not allowed in MH_DYLIB files + lt_prog_compiler_pic_CXX='-fno-common' + ;; + *djgpp*) + # DJGPP does not support shared libraries at all + lt_prog_compiler_pic_CXX= + ;; + haiku*) + # PIC is the default for Haiku. + # The "-static" flag exists, but is broken. + lt_prog_compiler_static_CXX= + ;; + interix[3-9]*) + # Interix 3.x gcc -fpic/-fPIC options generate broken code. + # Instead, we relocate shared libraries at runtime. + ;; + sysv4*MP*) + if test -d /usr/nec; then + lt_prog_compiler_pic_CXX=-Kconform_pic + fi + ;; + hpux*) + # PIC is the default for 64-bit PA HP-UX, but not for 32-bit + # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag + # sets the default TLS model and affects inlining. + case $host_cpu in + hppa*64*) + ;; + *) + lt_prog_compiler_pic_CXX='-fPIC' + ;; + esac + ;; + *qnx* | *nto*) + # QNX uses GNU C++, but need to define -shared option too, otherwise + # it will coredump. + lt_prog_compiler_pic_CXX='-fPIC -shared' + ;; + *) + lt_prog_compiler_pic_CXX='-fPIC' + ;; + esac + else + case $host_os in + aix[4-9]*) + # All AIX code is PIC. + if test ia64 = "$host_cpu"; then + # AIX 5 now supports IA64 processor + lt_prog_compiler_static_CXX='-Bstatic' + else + lt_prog_compiler_static_CXX='-bnso -bI:/lib/syscalls.exp' + fi + ;; + chorus*) + case $cc_basename in + cxch68*) + # Green Hills C++ Compiler + # _LT_TAGVAR(lt_prog_compiler_static, CXX)="--no_auto_instantiation -u __main -u __premain -u _abort -r $COOL_DIR/lib/libOrb.a $MVME_DIR/lib/CC/libC.a $MVME_DIR/lib/classix/libcx.s.a" + ;; + esac + ;; + mingw* | cygwin* | os2* | pw32* | cegcc*) + # This hack is so that the source file can tell whether it is being + # built for inclusion in a dll (and should export symbols for example). + lt_prog_compiler_pic_CXX='-DDLL_EXPORT' + ;; + dgux*) + case $cc_basename in + ec++*) + lt_prog_compiler_pic_CXX='-KPIC' + ;; + ghcx*) + # Green Hills C++ Compiler + lt_prog_compiler_pic_CXX='-pic' + ;; + *) + ;; + esac + ;; + freebsd* | dragonfly*) + # FreeBSD uses GNU C++ + ;; + hpux9* | hpux10* | hpux11*) + case $cc_basename in + CC*) + lt_prog_compiler_wl_CXX='-Wl,' + lt_prog_compiler_static_CXX='$wl-a ${wl}archive' + if test ia64 != "$host_cpu"; then + lt_prog_compiler_pic_CXX='+Z' + fi + ;; + aCC*) + lt_prog_compiler_wl_CXX='-Wl,' + lt_prog_compiler_static_CXX='$wl-a ${wl}archive' + case $host_cpu in + hppa*64*|ia64*) + # +Z the default + ;; + *) + lt_prog_compiler_pic_CXX='+Z' + ;; + esac + ;; + *) + ;; + esac + ;; + interix*) + # This is c89, which is MS Visual C++ (no shared libs) + # Anyone wants to do a port? + ;; + irix5* | irix6* | nonstopux*) + case $cc_basename in + CC*) + lt_prog_compiler_wl_CXX='-Wl,' + lt_prog_compiler_static_CXX='-non_shared' + # CC pic flag -KPIC is the default. + ;; + *) + ;; + esac + ;; + linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) + case $cc_basename in + KCC*) + # KAI C++ Compiler + lt_prog_compiler_wl_CXX='--backend -Wl,' + lt_prog_compiler_pic_CXX='-fPIC' + ;; + ecpc* ) + # old Intel C++ for x86_64, which still supported -KPIC. + lt_prog_compiler_wl_CXX='-Wl,' + lt_prog_compiler_pic_CXX='-KPIC' + lt_prog_compiler_static_CXX='-static' + ;; + icpc* ) + # Intel C++, used to be incompatible with GCC. + # ICC 10 doesn't accept -KPIC any more. + lt_prog_compiler_wl_CXX='-Wl,' + lt_prog_compiler_pic_CXX='-fPIC' + lt_prog_compiler_static_CXX='-static' + ;; + pgCC* | pgcpp*) + # Portland Group C++ compiler + lt_prog_compiler_wl_CXX='-Wl,' + lt_prog_compiler_pic_CXX='-fpic' + lt_prog_compiler_static_CXX='-Bstatic' + ;; + cxx*) + # Compaq C++ + # Make sure the PIC flag is empty. It appears that all Alpha + # Linux and Compaq Tru64 Unix objects are PIC. + lt_prog_compiler_pic_CXX= + lt_prog_compiler_static_CXX='-non_shared' + ;; + xlc* | xlC* | bgxl[cC]* | mpixl[cC]*) + # IBM XL 8.0, 9.0 on PPC and BlueGene + lt_prog_compiler_wl_CXX='-Wl,' + lt_prog_compiler_pic_CXX='-qpic' + lt_prog_compiler_static_CXX='-qstaticlink' + ;; + *) + case `$CC -V 2>&1 | sed 5q` in + *Sun\ C*) + # Sun C++ 5.9 + lt_prog_compiler_pic_CXX='-KPIC' + lt_prog_compiler_static_CXX='-Bstatic' + lt_prog_compiler_wl_CXX='-Qoption ld ' + ;; + esac + ;; + esac + ;; + lynxos*) + ;; + m88k*) + ;; + mvs*) + case $cc_basename in + cxx*) + lt_prog_compiler_pic_CXX='-W c,exportall' + ;; + *) + ;; + esac + ;; + netbsd*) + ;; + *qnx* | *nto*) + # QNX uses GNU C++, but need to define -shared option too, otherwise + # it will coredump. + lt_prog_compiler_pic_CXX='-fPIC -shared' + ;; + osf3* | osf4* | osf5*) + case $cc_basename in + KCC*) + lt_prog_compiler_wl_CXX='--backend -Wl,' + ;; + RCC*) + # Rational C++ 2.4.1 + lt_prog_compiler_pic_CXX='-pic' + ;; + cxx*) + # Digital/Compaq C++ + lt_prog_compiler_wl_CXX='-Wl,' + # Make sure the PIC flag is empty. It appears that all Alpha + # Linux and Compaq Tru64 Unix objects are PIC. + lt_prog_compiler_pic_CXX= + lt_prog_compiler_static_CXX='-non_shared' + ;; + *) + ;; + esac + ;; + psos*) + ;; + solaris*) + case $cc_basename in + CC* | sunCC*) + # Sun C++ 4.2, 5.x and Centerline C++ + lt_prog_compiler_pic_CXX='-KPIC' + lt_prog_compiler_static_CXX='-Bstatic' + lt_prog_compiler_wl_CXX='-Qoption ld ' + ;; + gcx*) + # Green Hills C++ Compiler + lt_prog_compiler_pic_CXX='-PIC' + ;; + *) + ;; + esac + ;; + sunos4*) + case $cc_basename in + CC*) + # Sun C++ 4.x + lt_prog_compiler_pic_CXX='-pic' + lt_prog_compiler_static_CXX='-Bstatic' + ;; + lcc*) + # Lucid + lt_prog_compiler_pic_CXX='-pic' + ;; + *) + ;; + esac + ;; + sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*) + case $cc_basename in + CC*) + lt_prog_compiler_wl_CXX='-Wl,' + lt_prog_compiler_pic_CXX='-KPIC' + lt_prog_compiler_static_CXX='-Bstatic' + ;; + esac + ;; + tandem*) + case $cc_basename in + NCC*) + # NonStop-UX NCC 3.20 + lt_prog_compiler_pic_CXX='-KPIC' + ;; + *) + ;; + esac + ;; + vxworks*) + ;; + *) + lt_prog_compiler_can_build_shared_CXX=no + ;; + esac + fi + +case $host_os in + # For platforms that do not support PIC, -DPIC is meaningless: + *djgpp*) + lt_prog_compiler_pic_CXX= + ;; + *) + lt_prog_compiler_pic_CXX="$lt_prog_compiler_pic_CXX -DPIC" + ;; +esac + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $compiler option to produce PIC" >&5 +$as_echo_n "checking for $compiler option to produce PIC... " >&6; } +if ${lt_cv_prog_compiler_pic_CXX+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_prog_compiler_pic_CXX=$lt_prog_compiler_pic_CXX +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_CXX" >&5 +$as_echo "$lt_cv_prog_compiler_pic_CXX" >&6; } +lt_prog_compiler_pic_CXX=$lt_cv_prog_compiler_pic_CXX + +# +# Check to make sure the PIC flag actually works. +# +if test -n "$lt_prog_compiler_pic_CXX"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler PIC flag $lt_prog_compiler_pic_CXX works" >&5 +$as_echo_n "checking if $compiler PIC flag $lt_prog_compiler_pic_CXX works... 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The import file would start with + # the line '#! .'. This would cause the generated library to + # depend on '.', always an invalid library. This was fixed in + # development snapshots of GCC prior to 3.0. + case $host_os in + aix4 | aix4.[01] | aix4.[01].*) + if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)' + echo ' yes ' + echo '#endif'; } | $CC -E - | $GREP yes > /dev/null; then + : + else + can_build_shared=no + fi + ;; + esac + # Using Import Files as archive members, it is possible to support + # filename-based versioning of shared library archives on AIX. While + # this would work for both with and without runtime linking, it will + # prevent static linking of such archives. So we do filename-based + # shared library versioning with .so extension only, which is used + # when both runtime linking and shared linking is enabled. + # Unfortunately, runtime linking may impact performance, so we do + # not want this to be the default eventually. Also, we use the + # versioned .so libs for executables only if there is the -brtl + # linker flag in LDFLAGS as well, or --with-aix-soname=svr4 only. + # To allow for filename-based versioning support, we need to create + # libNAME.so.V as an archive file, containing: + # *) an Import File, referring to the versioned filename of the + # archive as well as the shared archive member, telling the + # bitwidth (32 or 64) of that shared object, and providing the + # list of exported symbols of that shared object, eventually + # decorated with the 'weak' keyword + # *) the shared object with the F_LOADONLY flag set, to really avoid + # it being seen by the linker. + # At run time we better use the real file rather than another symlink, + # but for link time we create the symlink libNAME.so -> libNAME.so.V + + case $with_aix_soname,$aix_use_runtimelinking in + # AIX (on Power*) has no versioning support, so currently we cannot hardcode correct + # soname into executable. Probably we can add versioning support to + # collect2, so additional links can be useful in future. + aix,yes) # traditional libtool + dynamic_linker='AIX unversionable lib.so' + # If using run time linking (on AIX 4.2 or later) use lib.so + # instead of lib.a to let people know that these are not + # typical AIX shared libraries. + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + ;; + aix,no) # traditional AIX only + dynamic_linker='AIX lib.a(lib.so.V)' + # We preserve .a as extension for shared libraries through AIX4.2 + # and later when we are not doing run time linking. + library_names_spec='$libname$release.a $libname.a' + soname_spec='$libname$release$shared_ext$major' + ;; + svr4,*) # full svr4 only + dynamic_linker="AIX lib.so.V($shared_archive_member_spec.o)" + library_names_spec='$libname$release$shared_ext$major $libname$shared_ext' + # We do not specify a path in Import Files, so LIBPATH fires. + shlibpath_overrides_runpath=yes + ;; + *,yes) # both, prefer svr4 + dynamic_linker="AIX lib.so.V($shared_archive_member_spec.o), lib.a(lib.so.V)" + library_names_spec='$libname$release$shared_ext$major $libname$shared_ext' + # unpreferred sharedlib libNAME.a needs extra handling + postinstall_cmds='test -n "$linkname" || linkname="$realname"~func_stripname "" ".so" "$linkname"~$install_shared_prog "$dir/$func_stripname_result.$libext" "$destdir/$func_stripname_result.$libext"~test -z "$tstripme" || test -z "$striplib" || $striplib "$destdir/$func_stripname_result.$libext"' + postuninstall_cmds='for n in $library_names $old_library; do :; done~func_stripname "" ".so" "$n"~test "$func_stripname_result" = "$n" || func_append rmfiles " $odir/$func_stripname_result.$libext"' + # We do not specify a path in Import Files, so LIBPATH fires. + shlibpath_overrides_runpath=yes + ;; + *,no) # both, prefer aix + dynamic_linker="AIX lib.a(lib.so.V), lib.so.V($shared_archive_member_spec.o)" + library_names_spec='$libname$release.a $libname.a' + soname_spec='$libname$release$shared_ext$major' + # unpreferred sharedlib libNAME.so.V and symlink libNAME.so need extra handling + postinstall_cmds='test -z "$dlname" || $install_shared_prog $dir/$dlname $destdir/$dlname~test -z "$tstripme" || test -z "$striplib" || $striplib $destdir/$dlname~test -n "$linkname" || linkname=$realname~func_stripname "" ".a" "$linkname"~(cd "$destdir" && $LN_S -f $dlname $func_stripname_result.so)' + postuninstall_cmds='test -z "$dlname" || func_append rmfiles " $odir/$dlname"~for n in $old_library $library_names; do :; done~func_stripname "" ".a" "$n"~func_append rmfiles " $odir/$func_stripname_result.so"' + ;; + esac + shlibpath_var=LIBPATH + fi + ;; + +amigaos*) + case $host_cpu in + powerpc) + # Since July 2007 AmigaOS4 officially supports .so libraries. + # When compiling the executable, add -use-dynld -Lsobjs: to the compileline. + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + ;; + m68k) + library_names_spec='$libname.ixlibrary $libname.a' + # Create ${libname}_ixlibrary.a entries in /sys/libs. + finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done' + ;; + esac + ;; + +beos*) + library_names_spec='$libname$shared_ext' + dynamic_linker="$host_os ld.so" + shlibpath_var=LIBRARY_PATH + ;; + +bsdi[45]*) + version_type=linux # correct to gnu/linux during the next big refactor + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir' + shlibpath_var=LD_LIBRARY_PATH + sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib" + sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib" + # the default ld.so.conf also contains /usr/contrib/lib and + # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow + # libtool to hard-code these into programs + ;; + +cygwin* | mingw* | pw32* | cegcc*) + version_type=windows + shrext_cmds=.dll + need_version=no + need_lib_prefix=no + + case $GCC,$cc_basename in + yes,*) + # gcc + library_names_spec='$libname.dll.a' + # DLL is installed to $(libdir)/../bin by postinstall_cmds + postinstall_cmds='base_file=`basename \$file`~ + dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~ + dldir=$destdir/`dirname \$dlpath`~ + test -d \$dldir || mkdir -p \$dldir~ + $install_prog $dir/$dlname \$dldir/$dlname~ + chmod a+x \$dldir/$dlname~ + if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then + eval '\''$striplib \$dldir/$dlname'\'' || exit \$?; + fi' + postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~ + dlpath=$dir/\$dldll~ + $RM \$dlpath' + shlibpath_overrides_runpath=yes + + case $host_os in + cygwin*) + # Cygwin DLLs use 'cyg' prefix rather than 'lib' + soname_spec='`echo $libname | sed -e 's/^lib/cyg/'``echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext' + + ;; + mingw* | cegcc*) + # MinGW DLLs use traditional 'lib' prefix + soname_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext' + ;; + pw32*) + # pw32 DLLs use 'pw' prefix rather than 'lib' + library_names_spec='`echo $libname | sed -e 's/^lib/pw/'``echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext' + ;; + esac + dynamic_linker='Win32 ld.exe' + ;; + + *,cl*) + # Native MSVC + libname_spec='$name' + soname_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext' + library_names_spec='$libname.dll.lib' + + case $build_os in + mingw*) + sys_lib_search_path_spec= + lt_save_ifs=$IFS + IFS=';' + for lt_path in $LIB + do + IFS=$lt_save_ifs + # Let DOS variable expansion print the short 8.3 style file name. + lt_path=`cd "$lt_path" 2>/dev/null && cmd //C "for %i in (".") do @echo %~si"` + sys_lib_search_path_spec="$sys_lib_search_path_spec $lt_path" + done + IFS=$lt_save_ifs + # Convert to MSYS style. + sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | sed -e 's|\\\\|/|g' -e 's| \\([a-zA-Z]\\):| /\\1|g' -e 's|^ ||'` + ;; + cygwin*) + # Convert to unix form, then to dos form, then back to unix form + # but this time dos style (no spaces!) so that the unix form looks + # like /cygdrive/c/PROGRA~1:/cygdr... + sys_lib_search_path_spec=`cygpath --path --unix "$LIB"` + sys_lib_search_path_spec=`cygpath --path --dos "$sys_lib_search_path_spec" 2>/dev/null` + sys_lib_search_path_spec=`cygpath --path --unix "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"` + ;; + *) + sys_lib_search_path_spec=$LIB + if $ECHO "$sys_lib_search_path_spec" | $GREP ';[c-zC-Z]:/' >/dev/null; then + # It is most probably a Windows format PATH. + sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'` + else + sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"` + fi + # FIXME: find the short name or the path components, as spaces are + # common. (e.g. "Program Files" -> "PROGRA~1") + ;; + esac + + # DLL is installed to $(libdir)/../bin by postinstall_cmds + postinstall_cmds='base_file=`basename \$file`~ + dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~ + dldir=$destdir/`dirname \$dlpath`~ + test -d \$dldir || mkdir -p \$dldir~ + $install_prog $dir/$dlname \$dldir/$dlname' + postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~ + dlpath=$dir/\$dldll~ + $RM \$dlpath' + shlibpath_overrides_runpath=yes + dynamic_linker='Win32 link.exe' + ;; + + *) + # Assume MSVC wrapper + library_names_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext $libname.lib' + dynamic_linker='Win32 ld.exe' + ;; + esac + # FIXME: first we should search . and the directory the executable is in + shlibpath_var=PATH + ;; + +darwin* | rhapsody*) + dynamic_linker="$host_os dyld" + version_type=darwin + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$major$shared_ext $libname$shared_ext' + soname_spec='$libname$release$major$shared_ext' + shlibpath_overrides_runpath=yes + shlibpath_var=DYLD_LIBRARY_PATH + shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`' + + sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib' + ;; + +dgux*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + ;; + +freebsd* | dragonfly*) + # DragonFly does not have aout. When/if they implement a new + # versioning mechanism, adjust this. + if test -x /usr/bin/objformat; then + objformat=`/usr/bin/objformat` + else + case $host_os in + freebsd[23].*) objformat=aout ;; + *) objformat=elf ;; + esac + fi + version_type=freebsd-$objformat + case $version_type in + freebsd-elf*) + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + need_version=no + need_lib_prefix=no + ;; + freebsd-*) + library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix' + need_version=yes + ;; + esac + shlibpath_var=LD_LIBRARY_PATH + case $host_os in + freebsd2.*) + shlibpath_overrides_runpath=yes + ;; + freebsd3.[01]* | freebsdelf3.[01]*) + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + ;; + freebsd3.[2-9]* | freebsdelf3.[2-9]* | \ + freebsd4.[0-5] | freebsdelf4.[0-5] | freebsd4.1.1 | freebsdelf4.1.1) + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + *) # from 4.6 on, and DragonFly + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + ;; + esac + ;; + +haiku*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + dynamic_linker="$host_os runtime_loader" + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LIBRARY_PATH + shlibpath_overrides_runpath=no + sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib' + hardcode_into_libs=yes + ;; + +hpux9* | hpux10* | hpux11*) + # Give a soname corresponding to the major version so that dld.sl refuses to + # link against other versions. + version_type=sunos + need_lib_prefix=no + need_version=no + case $host_cpu in + ia64*) + shrext_cmds='.so' + hardcode_into_libs=yes + dynamic_linker="$host_os dld.so" + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + if test 32 = "$HPUX_IA64_MODE"; then + sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib" + sys_lib_dlsearch_path_spec=/usr/lib/hpux32 + else + sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64" + sys_lib_dlsearch_path_spec=/usr/lib/hpux64 + fi + ;; + hppa*64*) + shrext_cmds='.sl' + hardcode_into_libs=yes + dynamic_linker="$host_os dld.sl" + shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH + shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64" + sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec + ;; + *) + shrext_cmds='.sl' + dynamic_linker="$host_os dld.sl" + shlibpath_var=SHLIB_PATH + shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + ;; + esac + # HP-UX runs *really* slowly unless shared libraries are mode 555, ... + postinstall_cmds='chmod 555 $lib' + # or fails outright, so override atomically: + install_override_mode=555 + ;; + +interix[3-9]*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + +irix5* | irix6* | nonstopux*) + case $host_os in + nonstopux*) version_type=nonstopux ;; + *) + if test yes = "$lt_cv_prog_gnu_ld"; then + version_type=linux # correct to gnu/linux during the next big refactor + else + version_type=irix + fi ;; + esac + need_lib_prefix=no + need_version=no + soname_spec='$libname$release$shared_ext$major' + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$release$shared_ext $libname$shared_ext' + case $host_os in + irix5* | nonstopux*) + libsuff= shlibsuff= + ;; + *) + case $LD in # libtool.m4 will add one of these switches to LD + *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ") + libsuff= shlibsuff= libmagic=32-bit;; + *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ") + libsuff=32 shlibsuff=N32 libmagic=N32;; + *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ") + libsuff=64 shlibsuff=64 libmagic=64-bit;; + *) libsuff= shlibsuff= libmagic=never-match;; + esac + ;; + esac + shlibpath_var=LD_LIBRARY${shlibsuff}_PATH + shlibpath_overrides_runpath=no + sys_lib_search_path_spec="/usr/lib$libsuff /lib$libsuff /usr/local/lib$libsuff" + sys_lib_dlsearch_path_spec="/usr/lib$libsuff /lib$libsuff" + hardcode_into_libs=yes + ;; + +# No shared lib support for Linux oldld, aout, or coff. +linux*oldld* | linux*aout* | linux*coff*) + dynamic_linker=no + ;; + +linux*android*) + version_type=none # Android doesn't support versioned libraries. + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext' + soname_spec='$libname$release$shared_ext' + finish_cmds= + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + + # This implies no fast_install, which is unacceptable. + # Some rework will be needed to allow for fast_install + # before this can be enabled. + hardcode_into_libs=yes + + dynamic_linker='Android linker' + # Don't embed -rpath directories since the linker doesn't support them. + hardcode_libdir_flag_spec_CXX='-L$libdir' + ;; + +# This must be glibc/ELF. +linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + + # Some binutils ld are patched to set DT_RUNPATH + if ${lt_cv_shlibpath_overrides_runpath+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_shlibpath_overrides_runpath=no + save_LDFLAGS=$LDFLAGS + save_libdir=$libdir + eval "libdir=/foo; wl=\"$lt_prog_compiler_wl_CXX\"; \ + LDFLAGS=\"\$LDFLAGS $hardcode_libdir_flag_spec_CXX\"" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_cxx_try_link "$LINENO"; then : + if ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null; then : + lt_cv_shlibpath_overrides_runpath=yes +fi +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + LDFLAGS=$save_LDFLAGS + libdir=$save_libdir + +fi + + shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath + + # This implies no fast_install, which is unacceptable. + # Some rework will be needed to allow for fast_install + # before this can be enabled. + hardcode_into_libs=yes + + # Add ABI-specific directories to the system library path. + sys_lib_dlsearch_path_spec="/lib64 /usr/lib64 /lib /usr/lib" + + # Ideally, we could use ldconfig to report *all* directores which are + # searched for libraries, however this is still not possible. Aside from not + # being certain /sbin/ldconfig is available, command + # 'ldconfig -N -X -v | grep ^/' on 64bit Fedora does not report /usr/lib64, + # even though it is searched at run-time. Try to do the best guess by + # appending ld.so.conf contents (and includes) to the search path. + if test -f /etc/ld.so.conf; then + lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \$2)); skip = 1; } { if (!skip) print \$0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[ ]*hwcap[ ]/d;s/[:, ]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '` + sys_lib_dlsearch_path_spec="$sys_lib_dlsearch_path_spec $lt_ld_extra" + fi + + # We used to test for /lib/ld.so.1 and disable shared libraries on + # powerpc, because MkLinux only supported shared libraries with the + # GNU dynamic linker. Since this was broken with cross compilers, + # most powerpc-linux boxes support dynamic linking these days and + # people can always --disable-shared, the test was removed, and we + # assume the GNU/Linux dynamic linker is in use. + dynamic_linker='GNU/Linux ld.so' + ;; + +netbsd*) + version_type=sunos + need_lib_prefix=no + need_version=no + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix' + finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir' + dynamic_linker='NetBSD (a.out) ld.so' + else + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + dynamic_linker='NetBSD ld.elf_so' + fi + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + ;; + +newsos6) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + ;; + +*nto* | *qnx*) + version_type=qnx + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + dynamic_linker='ldqnx.so' + ;; + +openbsd* | bitrig*) + version_type=sunos + sys_lib_dlsearch_path_spec=/usr/lib + need_lib_prefix=no + if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then + need_version=no + else + need_version=yes + fi + library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix' + finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + ;; + +os2*) + libname_spec='$name' + version_type=windows + shrext_cmds=.dll + need_version=no + need_lib_prefix=no + # OS/2 can only load a DLL with a base name of 8 characters or less. + soname_spec='`test -n "$os2dllname" && libname="$os2dllname"; + v=$($ECHO $release$versuffix | tr -d .-); + n=$($ECHO $libname | cut -b -$((8 - ${#v})) | tr . _); + $ECHO $n$v`$shared_ext' + library_names_spec='${libname}_dll.$libext' + dynamic_linker='OS/2 ld.exe' + shlibpath_var=BEGINLIBPATH + sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib" + sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec + postinstall_cmds='base_file=`basename \$file`~ + dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; $ECHO \$dlname'\''`~ + dldir=$destdir/`dirname \$dlpath`~ + test -d \$dldir || mkdir -p \$dldir~ + $install_prog $dir/$dlname \$dldir/$dlname~ + chmod a+x \$dldir/$dlname~ + if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then + eval '\''$striplib \$dldir/$dlname'\'' || exit \$?; + fi' + postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; $ECHO \$dlname'\''`~ + dlpath=$dir/\$dldll~ + $RM \$dlpath' + ;; + +osf3* | osf4* | osf5*) + version_type=osf + need_lib_prefix=no + need_version=no + soname_spec='$libname$release$shared_ext$major' + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + shlibpath_var=LD_LIBRARY_PATH + sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib" + sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec + ;; + +rdos*) + dynamic_linker=no + ;; + +solaris*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + # ldd complains unless libraries are executable + postinstall_cmds='chmod +x $lib' + ;; + +sunos4*) + version_type=sunos + library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix' + finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + if test yes = "$with_gnu_ld"; then + need_lib_prefix=no + fi + need_version=yes + ;; + +sysv4 | sysv4.3*) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + case $host_vendor in + sni) + shlibpath_overrides_runpath=no + need_lib_prefix=no + runpath_var=LD_RUN_PATH + ;; + siemens) + need_lib_prefix=no + ;; + motorola) + need_lib_prefix=no + need_version=no + shlibpath_overrides_runpath=no + sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib' + ;; + esac + ;; + +sysv4*MP*) + if test -d /usr/nec; then + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='$libname$shared_ext.$versuffix $libname$shared_ext.$major $libname$shared_ext' + soname_spec='$libname$shared_ext.$major' + shlibpath_var=LD_LIBRARY_PATH + fi + ;; + +sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*) + version_type=sco + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + if test yes = "$with_gnu_ld"; then + sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib' + else + sys_lib_search_path_spec='/usr/ccs/lib /usr/lib' + case $host_os in + sco3.2v5*) + sys_lib_search_path_spec="$sys_lib_search_path_spec /lib" + ;; + esac + fi + sys_lib_dlsearch_path_spec='/usr/lib' + ;; + +tpf*) + # TPF is a cross-target only. Preferred cross-host = GNU/Linux. + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + +uts4*) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + ;; + +*) + dynamic_linker=no + ;; +esac +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $dynamic_linker" >&5 +$as_echo "$dynamic_linker" >&6; } +test no = "$dynamic_linker" && can_build_shared=no + +variables_saved_for_relink="PATH $shlibpath_var $runpath_var" +if test yes = "$GCC"; then + variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH" +fi + +if test set = "${lt_cv_sys_lib_search_path_spec+set}"; then + sys_lib_search_path_spec=$lt_cv_sys_lib_search_path_spec +fi + +if test set = "${lt_cv_sys_lib_dlsearch_path_spec+set}"; then + sys_lib_dlsearch_path_spec=$lt_cv_sys_lib_dlsearch_path_spec +fi + +# remember unaugmented sys_lib_dlsearch_path content for libtool script decls... +configure_time_dlsearch_path=$sys_lib_dlsearch_path_spec + +# ... but it needs LT_SYS_LIBRARY_PATH munging for other configure-time code +func_munge_path_list sys_lib_dlsearch_path_spec "$LT_SYS_LIBRARY_PATH" + +# to be used as default LT_SYS_LIBRARY_PATH value in generated libtool +configure_time_lt_sys_library_path=$LT_SYS_LIBRARY_PATH + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to hardcode library paths into programs" >&5 +$as_echo_n "checking how to hardcode library paths into programs... " >&6; } +hardcode_action_CXX= +if test -n "$hardcode_libdir_flag_spec_CXX" || + test -n "$runpath_var_CXX" || + test yes = "$hardcode_automatic_CXX"; then + + # We can hardcode non-existent directories. + if test no != "$hardcode_direct_CXX" && + # If the only mechanism to avoid hardcoding is shlibpath_var, we + # have to relink, otherwise we might link with an installed library + # when we should be linking with a yet-to-be-installed one + ## test no != "$_LT_TAGVAR(hardcode_shlibpath_var, CXX)" && + test no != "$hardcode_minus_L_CXX"; then + # Linking always hardcodes the temporary library directory. + hardcode_action_CXX=relink + else + # We can link without hardcoding, and we can hardcode nonexisting dirs. + hardcode_action_CXX=immediate + fi +else + # We cannot hardcode anything, or else we can only hardcode existing + # directories. + hardcode_action_CXX=unsupported +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $hardcode_action_CXX" >&5 +$as_echo "$hardcode_action_CXX" >&6; } + +if test relink = "$hardcode_action_CXX" || + test yes = "$inherit_rpath_CXX"; then + # Fast installation is not supported + enable_fast_install=no +elif test yes = "$shlibpath_overrides_runpath" || + test no = "$enable_shared"; then + # Fast installation is not necessary + enable_fast_install=needless +fi + + + + + + + + fi # test -n "$compiler" + + CC=$lt_save_CC + CFLAGS=$lt_save_CFLAGS + LDCXX=$LD + LD=$lt_save_LD + GCC=$lt_save_GCC + with_gnu_ld=$lt_save_with_gnu_ld + lt_cv_path_LDCXX=$lt_cv_path_LD + lt_cv_path_LD=$lt_save_path_LD + lt_cv_prog_gnu_ldcxx=$lt_cv_prog_gnu_ld + lt_cv_prog_gnu_ld=$lt_save_with_gnu_ld +fi # test yes != "$_lt_caught_CXX_error" + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the C++ compiler really really works" >&5 +$as_echo_n "checking if the C++ compiler really really works... " >&6; } +if $CXX --version >&5 2>&1; then : + have_cxx=yes +else + have_cxx=no +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_cxx" >&5 +$as_echo "$have_cxx" >&6; } + if test "$have_cxx" = "yes"; then + HAVE_CXX_TRUE= + HAVE_CXX_FALSE='#' +else + HAVE_CXX_TRUE='#' + HAVE_CXX_FALSE= +fi + + +# Check whether --enable-gcc-warnings was given. +if test "${enable_gcc_warnings+set}" = set; then : + enableval=$enable_gcc_warnings; case $enableval in + yes|no) ;; + *) as_fn_error $? "bad value $enableval for gcc-warnings option" "$LINENO" 5 ;; + esac + gcc_warnings=$enableval +else + gcc_warnings=no + +fi + +if test "x$gcc_warnings" = "xyes"; then + WARNINGS_CFLAGS="-Wall -Wshadow -Wvla -Werror" + +fi + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the compiler supports -std=c90 for ANSI C test" >&5 +$as_echo_n "checking if the compiler supports -std=c90 for ANSI C test... " >&6; } +old_CFLAGS="$CFLAGS" +CFLAGS="$CFLAGS -std=c90" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + supports_std_c90=yes +else + supports_std_c90=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +CFLAGS="$old_CFLAGS" +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supports_std_c90" >&5 +$as_echo "$supports_std_c90" >&6; } + if test "x$supports_std_c90" = "xyes"; then + CAN_TEST_ANSI_C_TRUE= + CAN_TEST_ANSI_C_FALSE='#' +else + CAN_TEST_ANSI_C_TRUE='#' + CAN_TEST_ANSI_C_FALSE= +fi + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether OS-dependent include paths are required" >&5 +$as_echo_n "checking whether OS-dependent include paths are required... " >&6; } +case $host_os in #( + haiku*) : + CFLAGS="$CFLAGS -I`findpaths -p /system B_FIND_PATH_HEADERS_DIRECTORY`/bsd"; { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } ;; #( + *) : + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + ;; +esac + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for temporary directory for large files" >&5 +$as_echo_n "checking for temporary directory for large files... " >&6; } +case $host_os in #( + haiku*) : + LARGE_TMPDIR=/tmp ;; #( + *) : + LARGE_TMPDIR=/var/tmp + ;; +esac +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $LARGE_TMPDIR" >&5 +$as_echo "$LARGE_TMPDIR" >&6; } + +cat >>confdefs.h <<_ACEOF +#define LARGE_TMPDIR "$LARGE_TMPDIR" +_ACEOF + + +ac_fn_c_check_decl "$LINENO" "program_invocation_short_name" "ac_cv_have_decl_program_invocation_short_name" "#include +" +if test "x$ac_cv_have_decl_program_invocation_short_name" = xyes; then : + ac_have_decl=1 +else + ac_have_decl=0 +fi + +cat >>confdefs.h <<_ACEOF +#define HAVE_DECL_PROGRAM_INVOCATION_SHORT_NAME $ac_have_decl +_ACEOF + + + + + + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + +ax_pthread_ok=no + +# We used to check for pthread.h first, but this fails if pthread.h +# requires special compiler flags (e.g. on Tru64 or Sequent). +# It gets checked for in the link test anyway. + +# First of all, check if the user has set any of the PTHREAD_LIBS, +# etcetera environment variables, and if threads linking works using +# them: +if test "x$PTHREAD_CFLAGS$PTHREAD_LIBS" != "x"; then + ax_pthread_save_CC="$CC" + ax_pthread_save_CFLAGS="$CFLAGS" + ax_pthread_save_LIBS="$LIBS" + if test "x$PTHREAD_CC" != "x"; then : + CC="$PTHREAD_CC" +fi + CFLAGS="$CFLAGS $PTHREAD_CFLAGS" + LIBS="$PTHREAD_LIBS $LIBS" + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_join using $CC $PTHREAD_CFLAGS $PTHREAD_LIBS" >&5 +$as_echo_n "checking for pthread_join using $CC $PTHREAD_CFLAGS $PTHREAD_LIBS... " >&6; } + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char pthread_join (); +int +main () +{ +return pthread_join (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ax_pthread_ok=yes +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_pthread_ok" >&5 +$as_echo "$ax_pthread_ok" >&6; } + if test "x$ax_pthread_ok" = "xno"; then + PTHREAD_LIBS="" + PTHREAD_CFLAGS="" + fi + CC="$ax_pthread_save_CC" + CFLAGS="$ax_pthread_save_CFLAGS" + LIBS="$ax_pthread_save_LIBS" +fi + +# We must check for the threads library under a number of different +# names; the ordering is very important because some systems +# (e.g. DEC) have both -lpthread and -lpthreads, where one of the +# libraries is broken (non-POSIX). + +# Create a list of thread flags to try. Items starting with a "-" are +# C compiler flags, and other items are library names, except for "none" +# which indicates that we try without any flags at all, and "pthread-config" +# which is a program returning the flags for the Pth emulation library. + +ax_pthread_flags="pthreads none -Kthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config" + +# The ordering *is* (sometimes) important. Some notes on the +# individual items follow: + +# pthreads: AIX (must check this before -lpthread) +# none: in case threads are in libc; should be tried before -Kthread and +# other compiler flags to prevent continual compiler warnings +# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h) +# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads), Tru64 +# (Note: HP C rejects this with "bad form for `-t' option") +# -pthreads: Solaris/gcc (Note: HP C also rejects) +# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it +# doesn't hurt to check since this sometimes defines pthreads and +# -D_REENTRANT too), HP C (must be checked before -lpthread, which +# is present but should not be used directly; and before -mthreads, +# because the compiler interprets this as "-mt" + "-hreads") +# -mthreads: Mingw32/gcc, Lynx/gcc +# pthread: Linux, etcetera +# --thread-safe: KAI C++ +# pthread-config: use pthread-config program (for GNU Pth library) + +case $host_os in + + freebsd*) + + # -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able) + # lthread: LinuxThreads port on FreeBSD (also preferred to -pthread) + + ax_pthread_flags="-kthread lthread $ax_pthread_flags" + ;; + + hpux*) + + # From the cc(1) man page: "[-mt] Sets various -D flags to enable + # multi-threading and also sets -lpthread." + + ax_pthread_flags="-mt -pthread pthread $ax_pthread_flags" + ;; + + openedition*) + + # IBM z/OS requires a feature-test macro to be defined in order to + # enable POSIX threads at all, so give the user a hint if this is + # not set. (We don't define these ourselves, as they can affect + # other portions of the system API in unpredictable ways.) + + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +# if !defined(_OPEN_THREADS) && !defined(_UNIX03_THREADS) + AX_PTHREAD_ZOS_MISSING +# endif + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "AX_PTHREAD_ZOS_MISSING" >/dev/null 2>&1; then : + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: IBM z/OS requires -D_OPEN_THREADS or -D_UNIX03_THREADS to enable pthreads support." >&5 +$as_echo "$as_me: WARNING: IBM z/OS requires -D_OPEN_THREADS or -D_UNIX03_THREADS to enable pthreads support." >&2;} +fi +rm -f conftest* + + ;; + + solaris*) + + # On Solaris (at least, for some versions), libc contains stubbed + # (non-functional) versions of the pthreads routines, so link-based + # tests will erroneously succeed. (N.B.: The stubs are missing + # pthread_cleanup_push, or rather a function called by this macro, + # so we could check for that, but who knows whether they'll stub + # that too in a future libc.) So we'll check first for the + # standard Solaris way of linking pthreads (-mt -lpthread). + + ax_pthread_flags="-mt,pthread pthread $ax_pthread_flags" + ;; +esac + +# GCC generally uses -pthread, or -pthreads on some platforms (e.g. SPARC) + +if test "x$GCC" = "xyes"; then : + ax_pthread_flags="-pthread -pthreads $ax_pthread_flags" +fi + +# The presence of a feature test macro requesting re-entrant function +# definitions is, on some systems, a strong hint that pthreads support is +# correctly enabled + +case $host_os in + darwin* | hpux* | linux* | osf* | solaris*) + ax_pthread_check_macro="_REENTRANT" + ;; + + aix*) + ax_pthread_check_macro="_THREAD_SAFE" + ;; + + *) + ax_pthread_check_macro="--" + ;; +esac +if test "x$ax_pthread_check_macro" = "x--"; then : + ax_pthread_check_cond=0 +else + ax_pthread_check_cond="!defined($ax_pthread_check_macro)" +fi + +# Are we compiling with Clang? + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC is Clang" >&5 +$as_echo_n "checking whether $CC is Clang... " >&6; } +if ${ax_cv_PTHREAD_CLANG+:} false; then : + $as_echo_n "(cached) " >&6 +else + ax_cv_PTHREAD_CLANG=no + # Note that Autoconf sets GCC=yes for Clang as well as GCC + if test "x$GCC" = "xyes"; then + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +/* Note: Clang 2.7 lacks __clang_[a-z]+__ */ +# if defined(__clang__) && defined(__llvm__) + AX_PTHREAD_CC_IS_CLANG +# endif + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "AX_PTHREAD_CC_IS_CLANG" >/dev/null 2>&1; then : + ax_cv_PTHREAD_CLANG=yes +fi +rm -f conftest* + + fi + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_CLANG" >&5 +$as_echo "$ax_cv_PTHREAD_CLANG" >&6; } +ax_pthread_clang="$ax_cv_PTHREAD_CLANG" + +ax_pthread_clang_warning=no + +# Clang needs special handling, because older versions handle the -pthread +# option in a rather... idiosyncratic way + +if test "x$ax_pthread_clang" = "xyes"; then + + # Clang takes -pthread; it has never supported any other flag + + # (Note 1: This will need to be revisited if a system that Clang + # supports has POSIX threads in a separate library. This tends not + # to be the way of modern systems, but it's conceivable.) + + # (Note 2: On some systems, notably Darwin, -pthread is not needed + # to get POSIX threads support; the API is always present and + # active. We could reasonably leave PTHREAD_CFLAGS empty. But + # -pthread does define _REENTRANT, and while the Darwin headers + # ignore this macro, third-party headers might not.) + + PTHREAD_CFLAGS="-pthread" + PTHREAD_LIBS= + + ax_pthread_ok=yes + + # However, older versions of Clang make a point of warning the user + # that, in an invocation where only linking and no compilation is + # taking place, the -pthread option has no effect ("argument unused + # during compilation"). They expect -pthread to be passed in only + # when source code is being compiled. + # + # Problem is, this is at odds with the way Automake and most other + # C build frameworks function, which is that the same flags used in + # compilation (CFLAGS) are also used in linking. Many systems + # supported by AX_PTHREAD require exactly this for POSIX threads + # support, and in fact it is often not straightforward to specify a + # flag that is used only in the compilation phase and not in + # linking. Such a scenario is extremely rare in practice. + # + # Even though use of the -pthread flag in linking would only print + # a warning, this can be a nuisance for well-run software projects + # that build with -Werror. So if the active version of Clang has + # this misfeature, we search for an option to squash it. + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether Clang needs flag to prevent \"argument unused\" warning when linking with -pthread" >&5 +$as_echo_n "checking whether Clang needs flag to prevent \"argument unused\" warning when linking with -pthread... " >&6; } +if ${ax_cv_PTHREAD_CLANG_NO_WARN_FLAG+:} false; then : + $as_echo_n "(cached) " >&6 +else + ax_cv_PTHREAD_CLANG_NO_WARN_FLAG=unknown + # Create an alternate version of $ac_link that compiles and + # links in two steps (.c -> .o, .o -> exe) instead of one + # (.c -> exe), because the warning occurs only in the second + # step + ax_pthread_save_ac_link="$ac_link" + ax_pthread_sed='s/conftest\.\$ac_ext/conftest.$ac_objext/g' + ax_pthread_link_step=`$as_echo "$ac_link" | sed "$ax_pthread_sed"` + ax_pthread_2step_ac_link="($ac_compile) && (echo ==== >&5) && ($ax_pthread_link_step)" + ax_pthread_save_CFLAGS="$CFLAGS" + for ax_pthread_try in '' -Qunused-arguments -Wno-unused-command-line-argument unknown; do + if test "x$ax_pthread_try" = "xunknown"; then : + break +fi + CFLAGS="-Werror -Wunknown-warning-option $ax_pthread_try -pthread $ax_pthread_save_CFLAGS" + ac_link="$ax_pthread_save_ac_link" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +int main(void){return 0;} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_link="$ax_pthread_2step_ac_link" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +int main(void){return 0;} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + break +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + done + ac_link="$ax_pthread_save_ac_link" + CFLAGS="$ax_pthread_save_CFLAGS" + if test "x$ax_pthread_try" = "x"; then : + ax_pthread_try=no +fi + ax_cv_PTHREAD_CLANG_NO_WARN_FLAG="$ax_pthread_try" + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_CLANG_NO_WARN_FLAG" >&5 +$as_echo "$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG" >&6; } + + case "$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG" in + no | unknown) ;; + *) PTHREAD_CFLAGS="$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG $PTHREAD_CFLAGS" ;; + esac + +fi # $ax_pthread_clang = yes + +if test "x$ax_pthread_ok" = "xno"; then +for ax_pthread_try_flag in $ax_pthread_flags; do + + case $ax_pthread_try_flag in + none) + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether pthreads work without any flags" >&5 +$as_echo_n "checking whether pthreads work without any flags... " >&6; } + ;; + + -mt,pthread) + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether pthreads work with -mt -lpthread" >&5 +$as_echo_n "checking whether pthreads work with -mt -lpthread... " >&6; } + PTHREAD_CFLAGS="-mt" + PTHREAD_LIBS="-lpthread" + ;; + + -*) + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether pthreads work with $ax_pthread_try_flag" >&5 +$as_echo_n "checking whether pthreads work with $ax_pthread_try_flag... " >&6; } + PTHREAD_CFLAGS="$ax_pthread_try_flag" + ;; + + pthread-config) + # Extract the first word of "pthread-config", so it can be a program name with args. +set dummy pthread-config; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ax_pthread_config+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ax_pthread_config"; then + ac_cv_prog_ax_pthread_config="$ax_pthread_config" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ax_pthread_config="yes" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + + test -z "$ac_cv_prog_ax_pthread_config" && ac_cv_prog_ax_pthread_config="no" +fi +fi +ax_pthread_config=$ac_cv_prog_ax_pthread_config +if test -n "$ax_pthread_config"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_pthread_config" >&5 +$as_echo "$ax_pthread_config" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + if test "x$ax_pthread_config" = "xno"; then : + continue +fi + PTHREAD_CFLAGS="`pthread-config --cflags`" + PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`" + ;; + + *) + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for the pthreads library -l$ax_pthread_try_flag" >&5 +$as_echo_n "checking for the pthreads library -l$ax_pthread_try_flag... " >&6; } + PTHREAD_LIBS="-l$ax_pthread_try_flag" + ;; + esac + + ax_pthread_save_CFLAGS="$CFLAGS" + ax_pthread_save_LIBS="$LIBS" + CFLAGS="$CFLAGS $PTHREAD_CFLAGS" + LIBS="$PTHREAD_LIBS $LIBS" + + # Check for various functions. We must include pthread.h, + # since some functions may be macros. (On the Sequent, we + # need a special flag -Kthread to make this header compile.) + # We check for pthread_join because it is in -lpthread on IRIX + # while pthread_create is in libc. We check for pthread_attr_init + # due to DEC craziness with -lpthreads. We check for + # pthread_cleanup_push because it is one of the few pthread + # functions on Solaris that doesn't have a non-functional libc stub. + # We try pthread_create on general principles. + + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +# if $ax_pthread_check_cond +# error "$ax_pthread_check_macro must be defined" +# endif + static void routine(void *a) { a = 0; } + static void *start_routine(void *a) { return a; } +int +main () +{ +pthread_t th; pthread_attr_t attr; + pthread_create(&th, 0, start_routine, 0); + pthread_join(th, 0); + pthread_attr_init(&attr); + pthread_cleanup_push(routine, 0); + pthread_cleanup_pop(0) /* ; */ + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ax_pthread_ok=yes +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + + CFLAGS="$ax_pthread_save_CFLAGS" + LIBS="$ax_pthread_save_LIBS" + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_pthread_ok" >&5 +$as_echo "$ax_pthread_ok" >&6; } + if test "x$ax_pthread_ok" = "xyes"; then : + break +fi + + PTHREAD_LIBS="" + PTHREAD_CFLAGS="" +done +fi + +# Various other checks: +if test "x$ax_pthread_ok" = "xyes"; then + ax_pthread_save_CFLAGS="$CFLAGS" + ax_pthread_save_LIBS="$LIBS" + CFLAGS="$CFLAGS $PTHREAD_CFLAGS" + LIBS="$PTHREAD_LIBS $LIBS" + + # Detect AIX lossage: JOINABLE attribute is called UNDETACHED. + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for joinable pthread attribute" >&5 +$as_echo_n "checking for joinable pthread attribute... " >&6; } +if ${ax_cv_PTHREAD_JOINABLE_ATTR+:} false; then : + $as_echo_n "(cached) " >&6 +else + ax_cv_PTHREAD_JOINABLE_ATTR=unknown + for ax_pthread_attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +int +main () +{ +int attr = $ax_pthread_attr; return attr /* ; */ + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ax_cv_PTHREAD_JOINABLE_ATTR=$ax_pthread_attr; break +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + done + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_JOINABLE_ATTR" >&5 +$as_echo "$ax_cv_PTHREAD_JOINABLE_ATTR" >&6; } + if test "x$ax_cv_PTHREAD_JOINABLE_ATTR" != "xunknown" && \ + test "x$ax_cv_PTHREAD_JOINABLE_ATTR" != "xPTHREAD_CREATE_JOINABLE" && \ + test "x$ax_pthread_joinable_attr_defined" != "xyes"; then : + +cat >>confdefs.h <<_ACEOF +#define PTHREAD_CREATE_JOINABLE $ax_cv_PTHREAD_JOINABLE_ATTR +_ACEOF + + ax_pthread_joinable_attr_defined=yes + +fi + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether more special flags are required for pthreads" >&5 +$as_echo_n "checking whether more special flags are required for pthreads... " >&6; } +if ${ax_cv_PTHREAD_SPECIAL_FLAGS+:} false; then : + $as_echo_n "(cached) " >&6 +else + ax_cv_PTHREAD_SPECIAL_FLAGS=no + case $host_os in + solaris*) + ax_cv_PTHREAD_SPECIAL_FLAGS="-D_POSIX_PTHREAD_SEMANTICS" + ;; + esac + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_SPECIAL_FLAGS" >&5 +$as_echo "$ax_cv_PTHREAD_SPECIAL_FLAGS" >&6; } + if test "x$ax_cv_PTHREAD_SPECIAL_FLAGS" != "xno" && \ + test "x$ax_pthread_special_flags_added" != "xyes"; then : + PTHREAD_CFLAGS="$ax_cv_PTHREAD_SPECIAL_FLAGS $PTHREAD_CFLAGS" + ax_pthread_special_flags_added=yes +fi + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for PTHREAD_PRIO_INHERIT" >&5 +$as_echo_n "checking for PTHREAD_PRIO_INHERIT... " >&6; } +if ${ax_cv_PTHREAD_PRIO_INHERIT+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +int +main () +{ +int i = PTHREAD_PRIO_INHERIT; + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ax_cv_PTHREAD_PRIO_INHERIT=yes +else + ax_cv_PTHREAD_PRIO_INHERIT=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_PRIO_INHERIT" >&5 +$as_echo "$ax_cv_PTHREAD_PRIO_INHERIT" >&6; } + if test "x$ax_cv_PTHREAD_PRIO_INHERIT" = "xyes" && \ + test "x$ax_pthread_prio_inherit_defined" != "xyes"; then : + +$as_echo "#define HAVE_PTHREAD_PRIO_INHERIT 1" >>confdefs.h + + ax_pthread_prio_inherit_defined=yes + +fi + + CFLAGS="$ax_pthread_save_CFLAGS" + LIBS="$ax_pthread_save_LIBS" + + # More AIX lossage: compile with *_r variant + if test "x$GCC" != "xyes"; then + case $host_os in + aix*) + case "x/$CC" in #( + x*/c89|x*/c89_128|x*/c99|x*/c99_128|x*/cc|x*/cc128|x*/xlc|x*/xlc_v6|x*/xlc128|x*/xlc128_v6) : + #handle absolute path differently from PATH based program lookup + case "x$CC" in #( + x/*) : + if as_fn_executable_p ${CC}_r; then : + PTHREAD_CC="${CC}_r" +fi ;; #( + *) : + for ac_prog in ${CC}_r +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_PTHREAD_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$PTHREAD_CC"; then + ac_cv_prog_PTHREAD_CC="$PTHREAD_CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_PTHREAD_CC="$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +PTHREAD_CC=$ac_cv_prog_PTHREAD_CC +if test -n "$PTHREAD_CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PTHREAD_CC" >&5 +$as_echo "$PTHREAD_CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$PTHREAD_CC" && break +done +test -n "$PTHREAD_CC" || PTHREAD_CC="$CC" + ;; +esac ;; #( + *) : + ;; +esac + ;; + esac + fi +fi + +test -n "$PTHREAD_CC" || PTHREAD_CC="$CC" + + + + + +# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND: +if test "x$ax_pthread_ok" = "xyes"; then + +$as_echo "#define HAVE_PTHREAD 1" >>confdefs.h + + : +else + ax_pthread_ok=no + +fi +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + + +acx_nbdkit_save_CFLAGS="${CFLAGS}" +CFLAGS="${CFLAGS} -Werror" +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if __attribute__((cleanup(...))) works with this compiler" >&5 +$as_echo_n "checking if __attribute__((cleanup(...))) works with this compiler... " >&6; } +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + + +#include +#include + +void +freep (void *ptr) +{ + exit (EXIT_SUCCESS); +} + +void +test (void) +{ + __attribute__((cleanup(freep))) char *ptr = malloc (100); +} + +int +main (int argc, char *argv[]) +{ + test (); + exit (EXIT_FAILURE); +} + + +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + +else + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + as_fn_error $? "'__attribute__((cleanup(...)))' does not work. + +You may not be using a sufficiently recent version of GCC or CLANG, or +you may be using a C compiler which does not support this attribute, +or the configure test may be wrong. + +This code requires the attribute to work for proper locking between threads." "$LINENO" 5 +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +CFLAGS="${acx_nbdkit_save_CFLAGS}" + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if __auto_type is available in this compiler" >&5 +$as_echo_n "checking if __auto_type is available in this compiler... " >&6; } +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + + +static int +test (int a) +{ + __auto_type at = a; + return at; +} + + +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + +$as_echo "#define HAVE_AUTO_TYPE 1" >>confdefs.h + + +else + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + + +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if environ is declared in header files" >&5 +$as_echo_n "checking if environ is declared in header files... " >&6; } +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + + +#include +#include +static int +test (void) +{ + const char **env = environ; + return env ? 1 : 0; // this just forces env to be used +} + + +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + +$as_echo "#define HAVE_ENVIRON_DECL 1" >>confdefs.h + + +else + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + + +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + +for ac_header in \ + alloca.h \ + byteswap.h \ + endian.h \ + stdatomic.h \ + sys/endian.h \ + sys/mman.h \ + sys/prctl.h \ + sys/procctl.h +do : + as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh` +ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default" +if eval test \"x\$"$as_ac_Header"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1 +_ACEOF + +fi + +done + + +for ac_header in linux/vm_sockets.h +do : + ac_fn_c_check_header_compile "$LINENO" "linux/vm_sockets.h" "ac_cv_header_linux_vm_sockets_h" "#include +" +if test "x$ac_cv_header_linux_vm_sockets_h" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_LINUX_VM_SOCKETS_H 1 +_ACEOF + +fi + +done + + +for ac_func in \ + accept4 \ + fdatasync \ + flockfile \ + funlockfile \ + get_current_dir_name \ + mkostemp \ + mlock \ + mlockall \ + munlock \ + open_memstream \ + pipe2 \ + ppoll \ + posix_fadvise +do : + as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh` +ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var" +if eval test \"x\$"$as_ac_var"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1 +_ACEOF + +fi +done + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the printf family supports %m" >&5 +$as_echo_n "checking whether the printf family supports %m... " >&6; } +if ${nbdkit_cv_func_printf_percent_m+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test "$cross_compiling" = yes; then : + + case "$host_os" in + *-gnu* | gnu*) nbdkit_cv_func_printf_percent_m=yes;; + *) nbdkit_cv_func_printf_percent_m="guessing no";; + esac + +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +#include +#include +#include + +int +main () +{ + + char buf[200] = ""; + errno = EINVAL; + snprintf(buf, sizeof buf, "%m"); + return !!strcmp (buf, strerror (EINVAL)); + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_run "$LINENO"; then : + nbdkit_cv_func_printf_percent_m=yes +else + nbdkit_cv_func_printf_percent_m=no +fi +rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ + conftest.$ac_objext conftest.beam conftest.$ac_ext +fi + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $nbdkit_cv_func_printf_percent_m" >&5 +$as_echo "$nbdkit_cv_func_printf_percent_m" >&6; } +if test "x$nbdkit_cv_func_printf_percent_m" = xyes; then : + +$as_echo "#define HAVE_VFPRINTF_PERCENT_M 1" >>confdefs.h + +fi + +old_LIBS="$LIBS" +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing dlsym" >&5 +$as_echo_n "checking for library containing dlsym... " >&6; } +if ${ac_cv_search_dlsym+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_func_search_save_LIBS=$LIBS +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char dlsym (); +int +main () +{ +return dlsym (); + ; + return 0; +} +_ACEOF +for ac_lib in '' dl dld; do + if test -z "$ac_lib"; then + ac_res="none required" + else + ac_res=-l$ac_lib + LIBS="-l$ac_lib $ac_func_search_save_LIBS" + fi + if ac_fn_c_try_link "$LINENO"; then : + ac_cv_search_dlsym=$ac_res +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext + if ${ac_cv_search_dlsym+:} false; then : + break +fi +done +if ${ac_cv_search_dlsym+:} false; then : + +else + ac_cv_search_dlsym=no +fi +rm conftest.$ac_ext +LIBS=$ac_func_search_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_dlsym" >&5 +$as_echo "$ac_cv_search_dlsym" >&6; } +ac_res=$ac_cv_search_dlsym +if test "$ac_res" != no; then : + test "$ac_res" = "none required" || LIBS="$ac_res $LIBS" + + if test "x$ac_cv_search_dlsym" != "xnone required"; then : + DL_LIBS="$ac_cv_search_dlsym" +else + DL_LIBS= +fi + + +else + as_fn_error $? "unable to find the dlsym() function" "$LINENO" 5 + +fi + +LIBS="$old_LIBS" + + +# Check whether --with-iconv was given. +if test "${with_iconv+set}" = set; then : + withval=$with_iconv; +else + with_iconv=check +fi + +if test "x$with_iconv" != "xno"; then : + + ac_fn_c_check_header_mongrel "$LINENO" "iconv.h" "ac_cv_header_iconv_h" "$ac_includes_default" +if test "x$ac_cv_header_iconv_h" = xyes; then : + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if can be used to link a program" >&5 +$as_echo_n "checking if can be used to link a program... " >&6; } + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + + +#include +#include +#include +int +main (int argc, char *argv[]) +{ + iconv_t ic = iconv_open ("", ""); + iconv_close (ic); + exit (0); +} + + +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + iconv_working=yes + +else + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + +fi + + + +fi + if test "x$iconv_working" = "xyes"; then + HAVE_ICONV_TRUE= + HAVE_ICONV_FALSE='#' +else + HAVE_ICONV_TRUE='#' + HAVE_ICONV_FALSE= +fi + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if we should use a linker script for the server" >&5 +$as_echo_n "checking if we should use a linker script for the server... " >&6; } +case $host_os in #( + freebsd*) : + use_linker_script_for_server=no ;; #( + *) : + use_linker_script_for_server=yes + ;; +esac +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $use_linker_script_for_server" >&5 +$as_echo "$use_linker_script_for_server" >&6; } + if test "x$use_linker_script_for_server" = "xyes"; then + USE_LINKER_SCRIPT_FOR_SERVER_TRUE= + USE_LINKER_SCRIPT_FOR_SERVER_FALSE='#' +else + USE_LINKER_SCRIPT_FOR_SERVER_TRUE='#' + USE_LINKER_SCRIPT_FOR_SERVER_FALSE= +fi + + +acx_nbdkit_save_LDFLAGS="${LDFLAGS}" +LDFLAGS="${LDFLAGS} -rdynamic" +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if linker supports -rdynamic" >&5 +$as_echo_n "checking if linker supports -rdynamic... " >&6; } +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + + +#include +int +main (int argc, char *argv[]) +{ + exit (EXIT_SUCCESS); +} + + +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + DL_LDFLAGS=-rdynamic + +else + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LDFLAGS="${acx_nbdkit_save_LDFLAGS}" + + +old_LIBS="$LIBS" +LIBS="$DL_LIBS $LIBS" +for ac_func in dladdr +do : + ac_fn_c_check_func "$LINENO" "dladdr" "ac_cv_func_dladdr" +if test "x$ac_cv_func_dladdr" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_DLADDR 1 +_ACEOF + +fi +done + +LIBS="$old_LIBS" + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the target is Windows" >&5 +$as_echo_n "checking if the target is Windows... " >&6; } +case $host_os in #( + mingw*|msys*) : + + is_windows=yes + NO_UNDEFINED_ON_WINDOWS="-no-undefined" + ;; #( + *) : + is_windows=no + ;; +esac +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $is_windows" >&5 +$as_echo "$is_windows" >&6; } + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing getaddrinfo" >&5 +$as_echo_n "checking for library containing getaddrinfo... " >&6; } +if ${ac_cv_search_getaddrinfo+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_func_search_save_LIBS=$LIBS +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char getaddrinfo (); +int +main () +{ +return getaddrinfo (); + ; + return 0; +} +_ACEOF +for ac_lib in '' network socket; do + if test -z "$ac_lib"; then + ac_res="none required" + else + ac_res=-l$ac_lib + LIBS="-l$ac_lib $ac_func_search_save_LIBS" + fi + if ac_fn_c_try_link "$LINENO"; then : + ac_cv_search_getaddrinfo=$ac_res +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext + if ${ac_cv_search_getaddrinfo+:} false; then : + break +fi +done +if ${ac_cv_search_getaddrinfo+:} false; then : + +else + ac_cv_search_getaddrinfo=no +fi +rm conftest.$ac_ext +LIBS=$ac_func_search_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_getaddrinfo" >&5 +$as_echo "$ac_cv_search_getaddrinfo" >&6; } +ac_res=$ac_cv_search_getaddrinfo +if test "$ac_res" != no; then : + test "$ac_res" = "none required" || LIBS="$ac_res $LIBS" + +fi + + + + + + + + + +if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args. +set dummy ${ac_tool_prefix}pkg-config; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_path_PKG_CONFIG+:} false; then : + $as_echo_n "(cached) " >&6 +else + case $PKG_CONFIG in + [\\/]* | ?:[\\/]*) + ac_cv_path_PKG_CONFIG="$PKG_CONFIG" # Let the user override the test with a path. + ;; + *) + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_path_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + + ;; +esac +fi +PKG_CONFIG=$ac_cv_path_PKG_CONFIG +if test -n "$PKG_CONFIG"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PKG_CONFIG" >&5 +$as_echo "$PKG_CONFIG" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_path_PKG_CONFIG"; then + ac_pt_PKG_CONFIG=$PKG_CONFIG + # Extract the first word of "pkg-config", so it can be a program name with args. +set dummy pkg-config; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_path_ac_pt_PKG_CONFIG+:} false; then : + $as_echo_n "(cached) " >&6 +else + case $ac_pt_PKG_CONFIG in + [\\/]* | ?:[\\/]*) + ac_cv_path_ac_pt_PKG_CONFIG="$ac_pt_PKG_CONFIG" # Let the user override the test with a path. + ;; + *) + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_path_ac_pt_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + + ;; +esac +fi +ac_pt_PKG_CONFIG=$ac_cv_path_ac_pt_PKG_CONFIG +if test -n "$ac_pt_PKG_CONFIG"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKG_CONFIG" >&5 +$as_echo "$ac_pt_PKG_CONFIG" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_pt_PKG_CONFIG" = x; then + PKG_CONFIG="" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + PKG_CONFIG=$ac_pt_PKG_CONFIG + fi +else + PKG_CONFIG="$ac_cv_path_PKG_CONFIG" +fi + +fi +if test -n "$PKG_CONFIG"; then + _pkg_min_version=0.9.0 + { $as_echo "$as_me:${as_lineno-$LINENO}: checking pkg-config is at least version $_pkg_min_version" >&5 +$as_echo_n "checking pkg-config is at least version $_pkg_min_version... " >&6; } + if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + PKG_CONFIG="" + fi +fi + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for LIBSELINUX" >&5 +$as_echo_n "checking for LIBSELINUX... " >&6; } + +if test -n "$LIBSELINUX_CFLAGS"; then + pkg_cv_LIBSELINUX_CFLAGS="$LIBSELINUX_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libselinux\""; } >&5 + ($PKG_CONFIG --exists --print-errors "libselinux") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_LIBSELINUX_CFLAGS=`$PKG_CONFIG --cflags "libselinux" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$LIBSELINUX_LIBS"; then + pkg_cv_LIBSELINUX_LIBS="$LIBSELINUX_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libselinux\""; } >&5 + ($PKG_CONFIG --exists --print-errors "libselinux") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_LIBSELINUX_LIBS=`$PKG_CONFIG --libs "libselinux" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + LIBSELINUX_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libselinux" 2>&1` + else + LIBSELINUX_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libselinux" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$LIBSELINUX_PKG_ERRORS" >&5 + + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libselinux not found, SELinux socket labelling support will be disabled." >&5 +$as_echo "$as_me: WARNING: libselinux not found, SELinux socket labelling support will be disabled." >&2;} + +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libselinux not found, SELinux socket labelling support will be disabled." >&5 +$as_echo "$as_me: WARNING: libselinux not found, SELinux socket labelling support will be disabled." >&2;} + +else + LIBSELINUX_CFLAGS=$pkg_cv_LIBSELINUX_CFLAGS + LIBSELINUX_LIBS=$pkg_cv_LIBSELINUX_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + +$as_echo "#define HAVE_LIBSELINUX 1" >>confdefs.h + + +fi + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for GNUTLS" >&5 +$as_echo_n "checking for GNUTLS... " >&6; } + +if test -n "$GNUTLS_CFLAGS"; then + pkg_cv_GNUTLS_CFLAGS="$GNUTLS_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"gnutls >= 3.3.0\""; } >&5 + ($PKG_CONFIG --exists --print-errors "gnutls >= 3.3.0") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_GNUTLS_CFLAGS=`$PKG_CONFIG --cflags "gnutls >= 3.3.0" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$GNUTLS_LIBS"; then + pkg_cv_GNUTLS_LIBS="$GNUTLS_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"gnutls >= 3.3.0\""; } >&5 + ($PKG_CONFIG --exists --print-errors "gnutls >= 3.3.0") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_GNUTLS_LIBS=`$PKG_CONFIG --libs "gnutls >= 3.3.0" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + GNUTLS_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "gnutls >= 3.3.0" 2>&1` + else + GNUTLS_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "gnutls >= 3.3.0" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$GNUTLS_PKG_ERRORS" >&5 + + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: gnutls not found or < 3.3.0, TLS support will be disabled." >&5 +$as_echo "$as_me: WARNING: gnutls not found or < 3.3.0, TLS support will be disabled." >&2;} + +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: gnutls not found or < 3.3.0, TLS support will be disabled." >&5 +$as_echo "$as_me: WARNING: gnutls not found or < 3.3.0, TLS support will be disabled." >&2;} + +else + GNUTLS_CFLAGS=$pkg_cv_GNUTLS_CFLAGS + GNUTLS_LIBS=$pkg_cv_GNUTLS_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + +$as_echo "#define HAVE_GNUTLS 1" >>confdefs.h + + +fi + +if test "$GNUTLS_LIBS" != ""; then : + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for default TLS session priority string" >&5 +$as_echo_n "checking for default TLS session priority string... " >&6; } + +# Check whether --with-tls-priority was given. +if test "${with_tls_priority+set}" = set; then : + withval=$with_tls_priority; tls_priority=$withval +else + tls_priority=NORMAL +fi + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tls_priority" >&5 +$as_echo "$tls_priority" >&6; } + +cat >>confdefs.h <<_ACEOF +#define TLS_PRIORITY "$tls_priority" +_ACEOF + + + # Check for APIs which may not be present. + old_LIBS="$LIBS" + LIBS="$GNUTLS_LIBS $LIBS" + for ac_func in \ + gnutls_base64_decode2 \ + gnutls_certificate_set_known_dh_params \ + gnutls_session_set_verify_cert +do : + as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh` +ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var" +if eval test \"x\$"$as_ac_var"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1 +_ACEOF + +fi +done + + LIBS="$old_LIBS" + +fi + +# Check whether --enable-linuxdisk was given. +if test "${enable_linuxdisk+set}" = set; then : + enableval=$enable_linuxdisk; +else + enable_linuxdisk=check +fi + +mke2fs_with_d=no +if test "$enable_linuxdisk" != "no"; then : + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for mke2fs supporting the -d option" >&5 +$as_echo_n "checking for mke2fs supporting the -d option... " >&6; } + if mke2fs -V >/dev/null 2>&1; then : + + if LANG=C mke2fs -d 2>&1 | grep -sq "option requires an argument"; then : + + mke2fs_with_d=yes + +fi + +fi + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $mke2fs_with_d" >&5 +$as_echo "$mke2fs_with_d" >&6; } + +fi + if test "x$mke2fs_with_d" = "xyes"; then + HAVE_MKE2FS_WITH_D_TRUE= + HAVE_MKE2FS_WITH_D_FALSE='#' +else + HAVE_MKE2FS_WITH_D_TRUE='#' + HAVE_MKE2FS_WITH_D_FALSE= +fi + + +# Extract the first word of "valgrind", so it can be a program name with args. +set dummy valgrind; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_VALGRIND+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$VALGRIND"; then + ac_cv_prog_VALGRIND="$VALGRIND" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_VALGRIND="valgrind" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + + test -z "$ac_cv_prog_VALGRIND" && ac_cv_prog_VALGRIND="no" +fi +fi +VALGRIND=$ac_cv_prog_VALGRIND +if test -n "$VALGRIND"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $VALGRIND" >&5 +$as_echo "$VALGRIND" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + +# Check whether --enable-valgrind was given. +if test "${enable_valgrind+set}" = set; then : + enableval=$enable_valgrind; enable_valgrind=yes +else + enable_valgrind=no +fi + +if test "x$enable_valgrind" = "xyes"; then : + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for VALGRIND" >&5 +$as_echo_n "checking for VALGRIND... " >&6; } + +if test -n "$VALGRIND_CFLAGS"; then + pkg_cv_VALGRIND_CFLAGS="$VALGRIND_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"valgrind\""; } >&5 + ($PKG_CONFIG --exists --print-errors "valgrind") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_VALGRIND_CFLAGS=`$PKG_CONFIG --cflags "valgrind" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$VALGRIND_LIBS"; then + pkg_cv_VALGRIND_LIBS="$VALGRIND_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"valgrind\""; } >&5 + ($PKG_CONFIG --exists --print-errors "valgrind") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_VALGRIND_LIBS=`$PKG_CONFIG --libs "valgrind" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + VALGRIND_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "valgrind" 2>&1` + else + VALGRIND_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "valgrind" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$VALGRIND_PKG_ERRORS" >&5 + + + as_fn_error $? "--enable-valgrind given, but Valgrind headers are not available" "$LINENO" 5 + +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + + as_fn_error $? "--enable-valgrind given, but Valgrind headers are not available" "$LINENO" 5 + +else + VALGRIND_CFLAGS=$pkg_cv_VALGRIND_CFLAGS + VALGRIND_LIBS=$pkg_cv_VALGRIND_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + +$as_echo "#define HAVE_VALGRIND 1" >>confdefs.h + + +fi + +fi + +# Check whether --enable-libfuzzer was given. +if test "${enable_libfuzzer+set}" = set; then : + enableval=$enable_libfuzzer; enable_libfuzzer=yes +else + enable_libfuzzer=no +fi + +if test "x$enable_libfuzzer" = "xyes"; then : + + +$as_echo "#define ENABLE_LIBFUZZER 1" >>confdefs.h + + +fi + if test "x$enable_libfuzzer" = "xyes"; then + ENABLE_LIBFUZZER_TRUE= + ENABLE_LIBFUZZER_FALSE='#' +else + ENABLE_LIBFUZZER_TRUE='#' + ENABLE_LIBFUZZER_FALSE= +fi + + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for BASH_COMPLETION" >&5 +$as_echo_n "checking for BASH_COMPLETION... " >&6; } + +if test -n "$BASH_COMPLETION_CFLAGS"; then + pkg_cv_BASH_COMPLETION_CFLAGS="$BASH_COMPLETION_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"bash-completion >= 2.0\""; } >&5 + ($PKG_CONFIG --exists --print-errors "bash-completion >= 2.0") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_BASH_COMPLETION_CFLAGS=`$PKG_CONFIG --cflags "bash-completion >= 2.0" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$BASH_COMPLETION_LIBS"; then + pkg_cv_BASH_COMPLETION_LIBS="$BASH_COMPLETION_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"bash-completion >= 2.0\""; } >&5 + ($PKG_CONFIG --exists --print-errors "bash-completion >= 2.0") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_BASH_COMPLETION_LIBS=`$PKG_CONFIG --libs "bash-completion >= 2.0" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + BASH_COMPLETION_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "bash-completion >= 2.0" 2>&1` + else + BASH_COMPLETION_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "bash-completion >= 2.0" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$BASH_COMPLETION_PKG_ERRORS" >&5 + + + bash_completion=no + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: bash-completion not installed" >&5 +$as_echo "$as_me: WARNING: bash-completion not installed" >&2;} + +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + + bash_completion=no + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: bash-completion not installed" >&5 +$as_echo "$as_me: WARNING: bash-completion not installed" >&2;} + +else + BASH_COMPLETION_CFLAGS=$pkg_cv_BASH_COMPLETION_CFLAGS + BASH_COMPLETION_LIBS=$pkg_cv_BASH_COMPLETION_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + bash_completion=yes + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for bash-completions directory" >&5 +$as_echo_n "checking for bash-completions directory... " >&6; } + + +if test -n "$bashcompdir"; then + pkg_cv_bashcompdir="$bashcompdir" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"bash-completion\""; } >&5 + ($PKG_CONFIG --exists --print-errors "bash-completion") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_bashcompdir=`$PKG_CONFIG --variable="completionsdir" "bash-completion" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +bashcompdir=$pkg_cv_bashcompdir + +if test "x$bashcompdir" = x""; then : + +fi + + if test -z "$bashcompdir"; then : + + bashcompdir="${sysconfdir}/bash_completion.d" + +fi + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $bashcompdir" >&5 +$as_echo "$bashcompdir" >&6; } + + +fi + if test "x$bash_completion" = "xyes"; then + HAVE_BASH_COMPLETION_TRUE= + HAVE_BASH_COMPLETION_FALSE='#' +else + HAVE_BASH_COMPLETION_TRUE='#' + HAVE_BASH_COMPLETION_FALSE= +fi + + +# Extract the first word of "perl", so it can be a program name with args. +set dummy perl; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_PERL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$PERL"; then + ac_cv_prog_PERL="$PERL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_PERL="perl" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + + test -z "$ac_cv_prog_PERL" && ac_cv_prog_PERL="no" +fi +fi +PERL=$ac_cv_prog_PERL +if test -n "$PERL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PERL" >&5 +$as_echo "$PERL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +if test "x$PERL" != "xno"; then : + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if we have perl Pod::Man and Pod::Simple" >&5 +$as_echo_n "checking if we have perl Pod::Man and Pod::Simple... " >&6; } + if $PERL -MPod::Man -MPod::Simple -e 1 >&5 2>&1; then : + + enable_pod=yes + +else + + enable_pod=no + +fi + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_pod" >&5 +$as_echo "$enable_pod" >&6; } + +fi + if test "x$PERL" != "xno" && test "x$enable_pod" = "xyes"; then + HAVE_POD_TRUE= + HAVE_POD_FALSE='#' +else + HAVE_POD_TRUE='#' + HAVE_POD_FALSE= +fi + + +PODWRAPPER="$PERL $(pwd)/podwrapper.pl" + + +# Check whether --enable-plugins was given. +if test "${enable_plugins+set}" = set; then : + enableval=$enable_plugins; +fi + + if test "x$enable_plugins" != "xno"; then + HAVE_PLUGINS_TRUE= + HAVE_PLUGINS_FALSE='#' +else + HAVE_PLUGINS_TRUE='#' + HAVE_PLUGINS_FALSE= +fi + + +# Check whether --enable-perl was given. +if test "${enable_perl+set}" = set; then : + enableval=$enable_perl; +else + enable_perl=yes +fi + +if test "x$PERL" != "xno" && test "x$enable_perl" != "xno"; then : + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for Perl embed archlib" >&5 +$as_echo_n "checking for Perl embed archlib... " >&6; } + PERL_ARCHLIB="$($PERL -MConfig -e 'print $Config{archlib}')" + if test -n "$PERL_ARCHLIB" ; then : + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PERL_ARCHLIB" >&5 +$as_echo "$PERL_ARCHLIB" >&6; } + +else + + { $as_echo "$as_me:${as_lineno-$LINENO}: Perl embed module disabled" >&5 +$as_echo "$as_me: Perl embed module disabled" >&6;} + enable_perl=no + +fi + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for Perl embed CFLAGS" >&5 +$as_echo_n "checking for Perl embed CFLAGS... " >&6; } + PERL_CFLAGS="$($PERL -MExtUtils::Embed -e 'ccflags')" + if test -n "$PERL_CFLAGS" ; then : + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PERL_CFLAGS" >&5 +$as_echo "$PERL_CFLAGS" >&6; } + +else + + { $as_echo "$as_me:${as_lineno-$LINENO}: Perl embed module disabled" >&5 +$as_echo "$as_me: Perl embed module disabled" >&6;} + enable_perl=no + +fi + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for Perl embed LDOPTS" >&5 +$as_echo_n "checking for Perl embed LDOPTS... " >&6; } + PERL_LDOPTS="$($PERL -MExtUtils::Embed -e 'ldopts')" + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PERL_LDOPTS" >&5 +$as_echo "$PERL_LDOPTS" >&6; } + + +fi + if test "x$enable_perl" != "xno" && test "x$PERL" != "xno"; then + HAVE_PERL_TRUE= + HAVE_PERL_FALSE='#' +else + HAVE_PERL_TRUE='#' + HAVE_PERL_FALSE= +fi + + + + + +for ac_prog in python3 python +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_path_PYTHON+:} false; then : + $as_echo_n "(cached) " >&6 +else + case $PYTHON in + [\\/]* | ?:[\\/]*) + ac_cv_path_PYTHON="$PYTHON" # Let the user override the test with a path. + ;; + *) + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_path_PYTHON="$as_dir/$ac_word$ac_exec_ext" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + + ;; +esac +fi +PYTHON=$ac_cv_path_PYTHON +if test -n "$PYTHON"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PYTHON" >&5 +$as_echo "$PYTHON" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$PYTHON" && break +done +test -n "$PYTHON" || PYTHON="no" + +# Check whether --enable-python was given. +if test "${enable_python+set}" = set; then : + enableval=$enable_python; +else + enable_python=yes +fi + +if test "x$PYTHON" != "xno" && test "x$enable_python" != "xno"; then : + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking version of $PYTHON" >&5 +$as_echo_n "checking version of $PYTHON... " >&6; } + PYTHON_VERSION_MAJOR=`$PYTHON -c "import sys; print (sys.version_info[0])"` + PYTHON_VERSION_MINOR=`$PYTHON -c "import sys; print (sys.version_info[1])"` + PYTHON_VERSION="$PYTHON_VERSION_MAJOR.$PYTHON_VERSION_MINOR" + if test -n "$PYTHON_VERSION"; then : + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PYTHON_VERSION" >&5 +$as_echo "$PYTHON_VERSION" >&6; } + +else + + { $as_echo "$as_me:${as_lineno-$LINENO}: Python embed module disabled" >&5 +$as_echo "$as_me: Python embed module disabled" >&6;} + enable_python=no + +fi + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking Python major version is 3" >&5 +$as_echo_n "checking Python major version is 3... " >&6; } + if test "x$PYTHON_VERSION_MAJOR" = "x3"; then : + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + +else + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + as_fn_error $? "Python $PYTHON_VERSION_MAJOR <> 3 is no longer supported. + +Python 2 end of life is 2020-01-01 and nbdkit >= 1.16 no longer +supports it. + +If you want to use Python 2, you will need to use nbdkit 1.14." "$LINENO" 5 + +fi + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for PYTHON" >&5 +$as_echo_n "checking for PYTHON... " >&6; } + +if test -n "$PYTHON_CFLAGS"; then + pkg_cv_PYTHON_CFLAGS="$PYTHON_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python-\"\$PYTHON_VERSION\"-embed\""; } >&5 + ($PKG_CONFIG --exists --print-errors "python-"$PYTHON_VERSION"-embed") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_PYTHON_CFLAGS=`$PKG_CONFIG --cflags "python-"$PYTHON_VERSION"-embed" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$PYTHON_LIBS"; then + pkg_cv_PYTHON_LIBS="$PYTHON_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python-\"\$PYTHON_VERSION\"-embed\""; } >&5 + ($PKG_CONFIG --exists --print-errors "python-"$PYTHON_VERSION"-embed") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_PYTHON_LIBS=`$PKG_CONFIG --libs "python-"$PYTHON_VERSION"-embed" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + PYTHON_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "python-"$PYTHON_VERSION"-embed" 2>&1` + else + PYTHON_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "python-"$PYTHON_VERSION"-embed" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$PYTHON_PKG_ERRORS" >&5 + + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for PYTHON" >&5 +$as_echo_n "checking for PYTHON... " >&6; } + +if test -n "$PYTHON_CFLAGS"; then + pkg_cv_PYTHON_CFLAGS="$PYTHON_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python-\"\$PYTHON_VERSION\"\""; } >&5 + ($PKG_CONFIG --exists --print-errors "python-"$PYTHON_VERSION"") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_PYTHON_CFLAGS=`$PKG_CONFIG --cflags "python-"$PYTHON_VERSION"" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$PYTHON_LIBS"; then + pkg_cv_PYTHON_LIBS="$PYTHON_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python-\"\$PYTHON_VERSION\"\""; } >&5 + ($PKG_CONFIG --exists --print-errors "python-"$PYTHON_VERSION"") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_PYTHON_LIBS=`$PKG_CONFIG --libs "python-"$PYTHON_VERSION"" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + PYTHON_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "python-"$PYTHON_VERSION"" 2>&1` + else + PYTHON_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "python-"$PYTHON_VERSION"" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$PYTHON_PKG_ERRORS" >&5 + + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for PYTHON" >&5 +$as_echo_n "checking for PYTHON... " >&6; } + +if test -n "$PYTHON_CFLAGS"; then + pkg_cv_PYTHON_CFLAGS="$PYTHON_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python\""; } >&5 + ($PKG_CONFIG --exists --print-errors "python") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_PYTHON_CFLAGS=`$PKG_CONFIG --cflags "python" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$PYTHON_LIBS"; then + pkg_cv_PYTHON_LIBS="$PYTHON_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python\""; } >&5 + ($PKG_CONFIG --exists --print-errors "python") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_PYTHON_LIBS=`$PKG_CONFIG --libs "python" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + PYTHON_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "python" 2>&1` + else + PYTHON_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "python" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$PYTHON_PKG_ERRORS" >&5 + + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: python $PYTHON_VERSION not found" >&5 +$as_echo "$as_me: WARNING: python $PYTHON_VERSION not found" >&2;} + enable_python=no + +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: python $PYTHON_VERSION not found" >&5 +$as_echo "$as_me: WARNING: python $PYTHON_VERSION not found" >&2;} + enable_python=no + +else + PYTHON_CFLAGS=$pkg_cv_PYTHON_CFLAGS + PYTHON_LIBS=$pkg_cv_PYTHON_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + + +$as_echo "#define HAVE_PYTHON 1" >>confdefs.h + + +fi +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for PYTHON" >&5 +$as_echo_n "checking for PYTHON... " >&6; } + +if test -n "$PYTHON_CFLAGS"; then + pkg_cv_PYTHON_CFLAGS="$PYTHON_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python\""; } >&5 + ($PKG_CONFIG --exists --print-errors "python") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_PYTHON_CFLAGS=`$PKG_CONFIG --cflags "python" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$PYTHON_LIBS"; then + pkg_cv_PYTHON_LIBS="$PYTHON_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python\""; } >&5 + ($PKG_CONFIG --exists --print-errors "python") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_PYTHON_LIBS=`$PKG_CONFIG --libs "python" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + PYTHON_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "python" 2>&1` + else + PYTHON_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "python" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$PYTHON_PKG_ERRORS" >&5 + + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: python $PYTHON_VERSION not found" >&5 +$as_echo "$as_me: WARNING: python $PYTHON_VERSION not found" >&2;} + enable_python=no + +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: python $PYTHON_VERSION not found" >&5 +$as_echo "$as_me: WARNING: python $PYTHON_VERSION not found" >&2;} + enable_python=no + +else + PYTHON_CFLAGS=$pkg_cv_PYTHON_CFLAGS + PYTHON_LIBS=$pkg_cv_PYTHON_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + + +$as_echo "#define HAVE_PYTHON 1" >>confdefs.h + + +fi +else + PYTHON_CFLAGS=$pkg_cv_PYTHON_CFLAGS + PYTHON_LIBS=$pkg_cv_PYTHON_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + + +$as_echo "#define HAVE_PYTHON 1" >>confdefs.h + + +fi +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for PYTHON" >&5 +$as_echo_n "checking for PYTHON... " >&6; } + +if test -n "$PYTHON_CFLAGS"; then + pkg_cv_PYTHON_CFLAGS="$PYTHON_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python-\"\$PYTHON_VERSION\"\""; } >&5 + ($PKG_CONFIG --exists --print-errors "python-"$PYTHON_VERSION"") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_PYTHON_CFLAGS=`$PKG_CONFIG --cflags "python-"$PYTHON_VERSION"" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$PYTHON_LIBS"; then + pkg_cv_PYTHON_LIBS="$PYTHON_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python-\"\$PYTHON_VERSION\"\""; } >&5 + ($PKG_CONFIG --exists --print-errors "python-"$PYTHON_VERSION"") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_PYTHON_LIBS=`$PKG_CONFIG --libs "python-"$PYTHON_VERSION"" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + PYTHON_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "python-"$PYTHON_VERSION"" 2>&1` + else + PYTHON_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "python-"$PYTHON_VERSION"" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$PYTHON_PKG_ERRORS" >&5 + + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for PYTHON" >&5 +$as_echo_n "checking for PYTHON... " >&6; } + +if test -n "$PYTHON_CFLAGS"; then + pkg_cv_PYTHON_CFLAGS="$PYTHON_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python\""; } >&5 + ($PKG_CONFIG --exists --print-errors "python") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_PYTHON_CFLAGS=`$PKG_CONFIG --cflags "python" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$PYTHON_LIBS"; then + pkg_cv_PYTHON_LIBS="$PYTHON_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python\""; } >&5 + ($PKG_CONFIG --exists --print-errors "python") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_PYTHON_LIBS=`$PKG_CONFIG --libs "python" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + PYTHON_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "python" 2>&1` + else + PYTHON_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "python" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$PYTHON_PKG_ERRORS" >&5 + + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: python $PYTHON_VERSION not found" >&5 +$as_echo "$as_me: WARNING: python $PYTHON_VERSION not found" >&2;} + enable_python=no + +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: python $PYTHON_VERSION not found" >&5 +$as_echo "$as_me: WARNING: python $PYTHON_VERSION not found" >&2;} + enable_python=no + +else + PYTHON_CFLAGS=$pkg_cv_PYTHON_CFLAGS + PYTHON_LIBS=$pkg_cv_PYTHON_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + + +$as_echo "#define HAVE_PYTHON 1" >>confdefs.h + + +fi +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for PYTHON" >&5 +$as_echo_n "checking for PYTHON... " >&6; } + +if test -n "$PYTHON_CFLAGS"; then + pkg_cv_PYTHON_CFLAGS="$PYTHON_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python\""; } >&5 + ($PKG_CONFIG --exists --print-errors "python") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_PYTHON_CFLAGS=`$PKG_CONFIG --cflags "python" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$PYTHON_LIBS"; then + pkg_cv_PYTHON_LIBS="$PYTHON_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python\""; } >&5 + ($PKG_CONFIG --exists --print-errors "python") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_PYTHON_LIBS=`$PKG_CONFIG --libs "python" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + PYTHON_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "python" 2>&1` + else + PYTHON_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "python" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$PYTHON_PKG_ERRORS" >&5 + + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: python $PYTHON_VERSION not found" >&5 +$as_echo "$as_me: WARNING: python $PYTHON_VERSION not found" >&2;} + enable_python=no + +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: python $PYTHON_VERSION not found" >&5 +$as_echo "$as_me: WARNING: python $PYTHON_VERSION not found" >&2;} + enable_python=no + +else + PYTHON_CFLAGS=$pkg_cv_PYTHON_CFLAGS + PYTHON_LIBS=$pkg_cv_PYTHON_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + + +$as_echo "#define HAVE_PYTHON 1" >>confdefs.h + + +fi +else + PYTHON_CFLAGS=$pkg_cv_PYTHON_CFLAGS + PYTHON_LIBS=$pkg_cv_PYTHON_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + + +$as_echo "#define HAVE_PYTHON 1" >>confdefs.h + + +fi +else + PYTHON_CFLAGS=$pkg_cv_PYTHON_CFLAGS + PYTHON_LIBS=$pkg_cv_PYTHON_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + + +$as_echo "#define HAVE_PYTHON 1" >>confdefs.h + + +fi + +fi + if test "x$enable_python" != "xno" && test "x$PYTHON" != "xno"; then + HAVE_PYTHON_TRUE= + HAVE_PYTHON_FALSE='#' +else + HAVE_PYTHON_TRUE='#' + HAVE_PYTHON_FALSE= +fi + + + + + + + + # checking for ocamlc + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}ocamlc", so it can be a program name with args. +set dummy ${ac_tool_prefix}ocamlc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_OCAMLC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$OCAMLC"; then + ac_cv_prog_OCAMLC="$OCAMLC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_OCAMLC="${ac_tool_prefix}ocamlc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +OCAMLC=$ac_cv_prog_OCAMLC +if test -n "$OCAMLC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLC" >&5 +$as_echo "$OCAMLC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_OCAMLC"; then + ac_ct_OCAMLC=$OCAMLC + # Extract the first word of "ocamlc", so it can be a program name with args. +set dummy ocamlc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_OCAMLC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_OCAMLC"; then + ac_cv_prog_ac_ct_OCAMLC="$ac_ct_OCAMLC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_OCAMLC="ocamlc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_OCAMLC=$ac_cv_prog_ac_ct_OCAMLC +if test -n "$ac_ct_OCAMLC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLC" >&5 +$as_echo "$ac_ct_OCAMLC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_OCAMLC" = x; then + OCAMLC="no" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + OCAMLC=$ac_ct_OCAMLC + fi +else + OCAMLC="$ac_cv_prog_OCAMLC" +fi + + + if test "$OCAMLC" != "no"; then + OCAMLVERSION=`$OCAMLC -v | sed -n -e 's|.*version* *\(.*\)$|\1|p'` + { $as_echo "$as_me:${as_lineno-$LINENO}: result: OCaml version is $OCAMLVERSION" >&5 +$as_echo "OCaml version is $OCAMLVERSION" >&6; } + # If OCAMLLIB is set, use it + if test "$OCAMLLIB" = ""; then + OCAMLLIB=`$OCAMLC -where 2>/dev/null || $OCAMLC -v|tail -1|cut -d ' ' -f 4` + else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: OCAMLLIB previously set; preserving it." >&5 +$as_echo "OCAMLLIB previously set; preserving it." >&6; } + fi + { $as_echo "$as_me:${as_lineno-$LINENO}: result: OCaml library path is $OCAMLLIB" >&5 +$as_echo "OCaml library path is $OCAMLLIB" >&6; } + + + + + # checking for ocamlopt + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}ocamlopt", so it can be a program name with args. +set dummy ${ac_tool_prefix}ocamlopt; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_OCAMLOPT+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$OCAMLOPT"; then + ac_cv_prog_OCAMLOPT="$OCAMLOPT" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_OCAMLOPT="${ac_tool_prefix}ocamlopt" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +OCAMLOPT=$ac_cv_prog_OCAMLOPT +if test -n "$OCAMLOPT"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLOPT" >&5 +$as_echo "$OCAMLOPT" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_OCAMLOPT"; then + ac_ct_OCAMLOPT=$OCAMLOPT + # Extract the first word of "ocamlopt", so it can be a program name with args. +set dummy ocamlopt; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_OCAMLOPT+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_OCAMLOPT"; then + ac_cv_prog_ac_ct_OCAMLOPT="$ac_ct_OCAMLOPT" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_OCAMLOPT="ocamlopt" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_OCAMLOPT=$ac_cv_prog_ac_ct_OCAMLOPT +if test -n "$ac_ct_OCAMLOPT"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLOPT" >&5 +$as_echo "$ac_ct_OCAMLOPT" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_OCAMLOPT" = x; then + OCAMLOPT="no" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + OCAMLOPT=$ac_ct_OCAMLOPT + fi +else + OCAMLOPT="$ac_cv_prog_OCAMLOPT" +fi + + OCAMLBEST=byte + if test "$OCAMLOPT" = "no"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Cannot find ocamlopt; bytecode compilation only." >&5 +$as_echo "$as_me: WARNING: Cannot find ocamlopt; bytecode compilation only." >&2;} + else + TMPVERSION=`$OCAMLOPT -v | sed -n -e 's|.*version* *\(.*\)$|\1|p' ` + if test "$TMPVERSION" != "$OCAMLVERSION" ; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: versions differs from ocamlc; ocamlopt discarded." >&5 +$as_echo "versions differs from ocamlc; ocamlopt discarded." >&6; } + OCAMLOPT=no + else + OCAMLBEST=opt + fi + fi + + + + # checking for ocamlc.opt + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}ocamlc.opt", so it can be a program name with args. +set dummy ${ac_tool_prefix}ocamlc.opt; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_OCAMLCDOTOPT+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$OCAMLCDOTOPT"; then + ac_cv_prog_OCAMLCDOTOPT="$OCAMLCDOTOPT" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_OCAMLCDOTOPT="${ac_tool_prefix}ocamlc.opt" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +OCAMLCDOTOPT=$ac_cv_prog_OCAMLCDOTOPT +if test -n "$OCAMLCDOTOPT"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLCDOTOPT" >&5 +$as_echo "$OCAMLCDOTOPT" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_OCAMLCDOTOPT"; then + ac_ct_OCAMLCDOTOPT=$OCAMLCDOTOPT + # Extract the first word of "ocamlc.opt", so it can be a program name with args. +set dummy ocamlc.opt; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_OCAMLCDOTOPT+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_OCAMLCDOTOPT"; then + ac_cv_prog_ac_ct_OCAMLCDOTOPT="$ac_ct_OCAMLCDOTOPT" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_OCAMLCDOTOPT="ocamlc.opt" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_OCAMLCDOTOPT=$ac_cv_prog_ac_ct_OCAMLCDOTOPT +if test -n "$ac_ct_OCAMLCDOTOPT"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLCDOTOPT" >&5 +$as_echo "$ac_ct_OCAMLCDOTOPT" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_OCAMLCDOTOPT" = x; then + OCAMLCDOTOPT="no" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + OCAMLCDOTOPT=$ac_ct_OCAMLCDOTOPT + fi +else + OCAMLCDOTOPT="$ac_cv_prog_OCAMLCDOTOPT" +fi + + if test "$OCAMLCDOTOPT" != "no"; then + TMPVERSION=`$OCAMLCDOTOPT -v | sed -n -e 's|.*version* *\(.*\)$|\1|p' ` + if test "$TMPVERSION" != "$OCAMLVERSION" ; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: versions differs from ocamlc; ocamlc.opt discarded." >&5 +$as_echo "versions differs from ocamlc; ocamlc.opt discarded." >&6; } + else + OCAMLC=$OCAMLCDOTOPT + fi + fi + + # checking for ocamlopt.opt + if test "$OCAMLOPT" != "no" ; then + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}ocamlopt.opt", so it can be a program name with args. +set dummy ${ac_tool_prefix}ocamlopt.opt; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_OCAMLOPTDOTOPT+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$OCAMLOPTDOTOPT"; then + ac_cv_prog_OCAMLOPTDOTOPT="$OCAMLOPTDOTOPT" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_OCAMLOPTDOTOPT="${ac_tool_prefix}ocamlopt.opt" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +OCAMLOPTDOTOPT=$ac_cv_prog_OCAMLOPTDOTOPT +if test -n "$OCAMLOPTDOTOPT"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLOPTDOTOPT" >&5 +$as_echo "$OCAMLOPTDOTOPT" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_OCAMLOPTDOTOPT"; then + ac_ct_OCAMLOPTDOTOPT=$OCAMLOPTDOTOPT + # Extract the first word of "ocamlopt.opt", so it can be a program name with args. +set dummy ocamlopt.opt; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_OCAMLOPTDOTOPT+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_OCAMLOPTDOTOPT"; then + ac_cv_prog_ac_ct_OCAMLOPTDOTOPT="$ac_ct_OCAMLOPTDOTOPT" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_OCAMLOPTDOTOPT="ocamlopt.opt" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_OCAMLOPTDOTOPT=$ac_cv_prog_ac_ct_OCAMLOPTDOTOPT +if test -n "$ac_ct_OCAMLOPTDOTOPT"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLOPTDOTOPT" >&5 +$as_echo "$ac_ct_OCAMLOPTDOTOPT" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_OCAMLOPTDOTOPT" = x; then + OCAMLOPTDOTOPT="no" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + OCAMLOPTDOTOPT=$ac_ct_OCAMLOPTDOTOPT + fi +else + OCAMLOPTDOTOPT="$ac_cv_prog_OCAMLOPTDOTOPT" +fi + + if test "$OCAMLOPTDOTOPT" != "no"; then + TMPVERSION=`$OCAMLOPTDOTOPT -v | sed -n -e 's|.*version* *\(.*\)$|\1|p' ` + if test "$TMPVERSION" != "$OCAMLVERSION" ; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: version differs from ocamlc; ocamlopt.opt discarded." >&5 +$as_echo "version differs from ocamlc; ocamlopt.opt discarded." >&6; } + else + OCAMLOPT=$OCAMLOPTDOTOPT + fi + fi + fi + + + fi + + + + # checking for ocaml toplevel + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}ocaml", so it can be a program name with args. +set dummy ${ac_tool_prefix}ocaml; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_OCAML+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$OCAML"; then + ac_cv_prog_OCAML="$OCAML" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_OCAML="${ac_tool_prefix}ocaml" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +OCAML=$ac_cv_prog_OCAML +if test -n "$OCAML"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAML" >&5 +$as_echo "$OCAML" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_OCAML"; then + ac_ct_OCAML=$OCAML + # Extract the first word of "ocaml", so it can be a program name with args. +set dummy ocaml; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_OCAML+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_OCAML"; then + ac_cv_prog_ac_ct_OCAML="$ac_ct_OCAML" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_OCAML="ocaml" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_OCAML=$ac_cv_prog_ac_ct_OCAML +if test -n "$ac_ct_OCAML"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAML" >&5 +$as_echo "$ac_ct_OCAML" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_OCAML" = x; then + OCAML="no" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + OCAML=$ac_ct_OCAML + fi +else + OCAML="$ac_cv_prog_OCAML" +fi + + + # checking for ocamldep + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}ocamldep", so it can be a program name with args. +set dummy ${ac_tool_prefix}ocamldep; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_OCAMLDEP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$OCAMLDEP"; then + ac_cv_prog_OCAMLDEP="$OCAMLDEP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_OCAMLDEP="${ac_tool_prefix}ocamldep" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +OCAMLDEP=$ac_cv_prog_OCAMLDEP +if test -n "$OCAMLDEP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLDEP" >&5 +$as_echo "$OCAMLDEP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_OCAMLDEP"; then + ac_ct_OCAMLDEP=$OCAMLDEP + # Extract the first word of "ocamldep", so it can be a program name with args. +set dummy ocamldep; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_OCAMLDEP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_OCAMLDEP"; then + ac_cv_prog_ac_ct_OCAMLDEP="$ac_ct_OCAMLDEP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_OCAMLDEP="ocamldep" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_OCAMLDEP=$ac_cv_prog_ac_ct_OCAMLDEP +if test -n "$ac_ct_OCAMLDEP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLDEP" >&5 +$as_echo "$ac_ct_OCAMLDEP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_OCAMLDEP" = x; then + OCAMLDEP="no" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + OCAMLDEP=$ac_ct_OCAMLDEP + fi +else + OCAMLDEP="$ac_cv_prog_OCAMLDEP" +fi + + + # checking for ocamlmktop + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}ocamlmktop", so it can be a program name with args. +set dummy ${ac_tool_prefix}ocamlmktop; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_OCAMLMKTOP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$OCAMLMKTOP"; then + ac_cv_prog_OCAMLMKTOP="$OCAMLMKTOP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_OCAMLMKTOP="${ac_tool_prefix}ocamlmktop" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +OCAMLMKTOP=$ac_cv_prog_OCAMLMKTOP +if test -n "$OCAMLMKTOP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLMKTOP" >&5 +$as_echo "$OCAMLMKTOP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_OCAMLMKTOP"; then + ac_ct_OCAMLMKTOP=$OCAMLMKTOP + # Extract the first word of "ocamlmktop", so it can be a program name with args. +set dummy ocamlmktop; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_OCAMLMKTOP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_OCAMLMKTOP"; then + ac_cv_prog_ac_ct_OCAMLMKTOP="$ac_ct_OCAMLMKTOP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_OCAMLMKTOP="ocamlmktop" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_OCAMLMKTOP=$ac_cv_prog_ac_ct_OCAMLMKTOP +if test -n "$ac_ct_OCAMLMKTOP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLMKTOP" >&5 +$as_echo "$ac_ct_OCAMLMKTOP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_OCAMLMKTOP" = x; then + OCAMLMKTOP="no" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + OCAMLMKTOP=$ac_ct_OCAMLMKTOP + fi +else + OCAMLMKTOP="$ac_cv_prog_OCAMLMKTOP" +fi + + + # checking for ocamlmklib + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}ocamlmklib", so it can be a program name with args. +set dummy ${ac_tool_prefix}ocamlmklib; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_OCAMLMKLIB+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$OCAMLMKLIB"; then + ac_cv_prog_OCAMLMKLIB="$OCAMLMKLIB" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_OCAMLMKLIB="${ac_tool_prefix}ocamlmklib" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +OCAMLMKLIB=$ac_cv_prog_OCAMLMKLIB +if test -n "$OCAMLMKLIB"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLMKLIB" >&5 +$as_echo "$OCAMLMKLIB" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_OCAMLMKLIB"; then + ac_ct_OCAMLMKLIB=$OCAMLMKLIB + # Extract the first word of "ocamlmklib", so it can be a program name with args. +set dummy ocamlmklib; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_OCAMLMKLIB+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_OCAMLMKLIB"; then + ac_cv_prog_ac_ct_OCAMLMKLIB="$ac_ct_OCAMLMKLIB" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_OCAMLMKLIB="ocamlmklib" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_OCAMLMKLIB=$ac_cv_prog_ac_ct_OCAMLMKLIB +if test -n "$ac_ct_OCAMLMKLIB"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLMKLIB" >&5 +$as_echo "$ac_ct_OCAMLMKLIB" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_OCAMLMKLIB" = x; then + OCAMLMKLIB="no" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + OCAMLMKLIB=$ac_ct_OCAMLMKLIB + fi +else + OCAMLMKLIB="$ac_cv_prog_OCAMLMKLIB" +fi + + + # checking for ocamldoc + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}ocamldoc", so it can be a program name with args. +set dummy ${ac_tool_prefix}ocamldoc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_OCAMLDOC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$OCAMLDOC"; then + ac_cv_prog_OCAMLDOC="$OCAMLDOC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_OCAMLDOC="${ac_tool_prefix}ocamldoc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +OCAMLDOC=$ac_cv_prog_OCAMLDOC +if test -n "$OCAMLDOC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLDOC" >&5 +$as_echo "$OCAMLDOC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_OCAMLDOC"; then + ac_ct_OCAMLDOC=$OCAMLDOC + # Extract the first word of "ocamldoc", so it can be a program name with args. +set dummy ocamldoc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_OCAMLDOC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_OCAMLDOC"; then + ac_cv_prog_ac_ct_OCAMLDOC="$ac_ct_OCAMLDOC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_OCAMLDOC="ocamldoc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_OCAMLDOC=$ac_cv_prog_ac_ct_OCAMLDOC +if test -n "$ac_ct_OCAMLDOC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLDOC" >&5 +$as_echo "$ac_ct_OCAMLDOC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_OCAMLDOC" = x; then + OCAMLDOC="no" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + OCAMLDOC=$ac_ct_OCAMLDOC + fi +else + OCAMLDOC="$ac_cv_prog_OCAMLDOC" +fi + + + # checking for ocamlbuild + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}ocamlbuild", so it can be a program name with args. +set dummy ${ac_tool_prefix}ocamlbuild; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_OCAMLBUILD+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$OCAMLBUILD"; then + ac_cv_prog_OCAMLBUILD="$OCAMLBUILD" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_OCAMLBUILD="${ac_tool_prefix}ocamlbuild" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +OCAMLBUILD=$ac_cv_prog_OCAMLBUILD +if test -n "$OCAMLBUILD"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLBUILD" >&5 +$as_echo "$OCAMLBUILD" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_OCAMLBUILD"; then + ac_ct_OCAMLBUILD=$OCAMLBUILD + # Extract the first word of "ocamlbuild", so it can be a program name with args. +set dummy ocamlbuild; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_OCAMLBUILD+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_OCAMLBUILD"; then + ac_cv_prog_ac_ct_OCAMLBUILD="$ac_ct_OCAMLBUILD" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_OCAMLBUILD="ocamlbuild" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_OCAMLBUILD=$ac_cv_prog_ac_ct_OCAMLBUILD +if test -n "$ac_ct_OCAMLBUILD"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLBUILD" >&5 +$as_echo "$ac_ct_OCAMLBUILD" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_OCAMLBUILD" = x; then + OCAMLBUILD="no" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + OCAMLBUILD=$ac_ct_OCAMLBUILD + fi +else + OCAMLBUILD="$ac_cv_prog_OCAMLBUILD" +fi + + +# Check whether --enable-ocaml was given. +if test "${enable_ocaml+set}" = set; then : + enableval=$enable_ocaml; +else + enable_ocaml=yes +fi + +if test "x$OCAMLOPT" != "xno" && test "x$enable_ocaml" != "xno"; then : + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $OCAMLOPT can create a shared library" >&5 +$as_echo_n "checking if $OCAMLOPT can create a shared library... " >&6; } + echo 'print_endline "test"' > conftest.ml + if $OCAMLOPT $OCAMLOPTFLAGS -output-obj -runtime-variant _pic -o conftest.so conftest.ml >&5 2>&1; then : + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + ocaml_link_shared=yes + +else + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +fi + rm -f conftest.ml conftest.cmi conftest.cmx conftest.so conftest.o + +fi + if test "x$OCAMLOPT" != "xno" && + test "x$ocaml_link_shared" = "xyes"; then + HAVE_OCAML_TRUE= + HAVE_OCAML_FALSE='#' +else + HAVE_OCAML_TRUE='#' + HAVE_OCAML_FALSE= +fi + + +if test "x$OCAMLC" != "xno" && test "x$OCAMLFIND" != "xno" && \ + test "x$enable_ocaml" = "xyes"; then : + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for caml_alloc_initialized_string" >&5 +$as_echo_n "checking for caml_alloc_initialized_string... " >&6; } + cat >conftest.c <<'EOF' +#include +int main () { char *p = (void *) caml_alloc_initialized_string; return 0; } +EOF + if $OCAMLC conftest.c >&5 2>&1; then : + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + +$as_echo "#define HAVE_CAML_ALLOC_INITIALIZED_STRING 1" >>confdefs.h + + +else + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +fi + rm -f conftest.c conftest.o + +fi + +# Extract the first word of "cargo", so it can be a program name with args. +set dummy cargo; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CARGO+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CARGO"; then + ac_cv_prog_CARGO="$CARGO" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CARGO="cargo" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + + test -z "$ac_cv_prog_CARGO" && ac_cv_prog_CARGO="no" +fi +fi +CARGO=$ac_cv_prog_CARGO +if test -n "$CARGO"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CARGO" >&5 +$as_echo "$CARGO" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +# Check whether --enable-rust was given. +if test "${enable_rust+set}" = set; then : + enableval=$enable_rust; +else + enable_rust=yes +fi + + if test "x$CARGO" != "xno" && test "x$enable_rust" != "xno"; then + HAVE_RUST_TRUE= + HAVE_RUST_FALSE='#' +else + HAVE_RUST_TRUE='#' + HAVE_RUST_FALSE= +fi + + +# Extract the first word of "ruby", so it can be a program name with args. +set dummy ruby; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_RUBY+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$RUBY"; then + ac_cv_prog_RUBY="$RUBY" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_RUBY="ruby" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + + test -z "$ac_cv_prog_RUBY" && ac_cv_prog_RUBY="no" +fi +fi +RUBY=$ac_cv_prog_RUBY +if test -n "$RUBY"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RUBY" >&5 +$as_echo "$RUBY" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +# Check whether --enable-ruby was given. +if test "${enable_ruby+set}" = set; then : + enableval=$enable_ruby; +else + enable_ruby=yes +fi + +if test "x$RUBY" != "xno" && test "x$enable_ruby" != "xno"; then : + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for RUBY" >&5 +$as_echo_n "checking for RUBY... " >&6; } + +if test -n "$RUBY_CFLAGS"; then + pkg_cv_RUBY_CFLAGS="$RUBY_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"ruby\""; } >&5 + ($PKG_CONFIG --exists --print-errors "ruby") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_RUBY_CFLAGS=`$PKG_CONFIG --cflags "ruby" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$RUBY_LIBS"; then + pkg_cv_RUBY_LIBS="$RUBY_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"ruby\""; } >&5 + ($PKG_CONFIG --exists --print-errors "ruby") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_RUBY_LIBS=`$PKG_CONFIG --libs "ruby" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + RUBY_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "ruby" 2>&1` + else + RUBY_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "ruby" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$RUBY_PKG_ERRORS" >&5 + + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: ruby not found" >&5 +$as_echo "$as_me: WARNING: ruby not found" >&2;} + enable_ruby=no + +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: ruby not found" >&5 +$as_echo "$as_me: WARNING: ruby not found" >&2;} + enable_ruby=no + +else + RUBY_CFLAGS=$pkg_cv_RUBY_CFLAGS + RUBY_LIBS=$pkg_cv_RUBY_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + +fi + +fi + if test "x$RUBY" != "xno" && + test "x$enable_ruby" = "xyes"; then + HAVE_RUBY_TRUE= + HAVE_RUBY_FALSE='#' +else + HAVE_RUBY_TRUE='#' + HAVE_RUBY_FALSE= +fi + + +# Check whether --enable-tcl was given. +if test "${enable_tcl+set}" = set; then : + enableval=$enable_tcl; +else + enable_tcl=yes +fi + +if test "x$enable_tcl" != "xno"; then : + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for TCL" >&5 +$as_echo_n "checking for TCL... " >&6; } + +if test -n "$TCL_CFLAGS"; then + pkg_cv_TCL_CFLAGS="$TCL_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"tcl\""; } >&5 + ($PKG_CONFIG --exists --print-errors "tcl") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_TCL_CFLAGS=`$PKG_CONFIG --cflags "tcl" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$TCL_LIBS"; then + pkg_cv_TCL_LIBS="$TCL_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"tcl\""; } >&5 + ($PKG_CONFIG --exists --print-errors "tcl") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_TCL_LIBS=`$PKG_CONFIG --libs "tcl" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + TCL_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "tcl" 2>&1` + else + TCL_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "tcl" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$TCL_PKG_ERRORS" >&5 + + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Tcl not found" >&5 +$as_echo "$as_me: WARNING: Tcl not found" >&2;} + enable_tcl=no + +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Tcl not found" >&5 +$as_echo "$as_me: WARNING: Tcl not found" >&2;} + enable_tcl=no + +else + TCL_CFLAGS=$pkg_cv_TCL_CFLAGS + TCL_LIBS=$pkg_cv_TCL_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + +fi + +fi + if test "x$enable_tcl" = "xyes"; then + HAVE_TCL_TRUE= + HAVE_TCL_FALSE='#' +else + HAVE_TCL_TRUE='#' + HAVE_TCL_FALSE= +fi + + +# Check whether --enable-lua was given. +if test "${enable_lua+set}" = set; then : + enableval=$enable_lua; +else + enable_lua=yes +fi + +if test "x$enable_lua" != "xno"; then : + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for LUA" >&5 +$as_echo_n "checking for LUA... " >&6; } + +if test -n "$LUA_CFLAGS"; then + pkg_cv_LUA_CFLAGS="$LUA_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"lua\""; } >&5 + ($PKG_CONFIG --exists --print-errors "lua") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_LUA_CFLAGS=`$PKG_CONFIG --cflags "lua" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$LUA_LIBS"; then + pkg_cv_LUA_LIBS="$LUA_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"lua\""; } >&5 + ($PKG_CONFIG --exists --print-errors "lua") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_LUA_LIBS=`$PKG_CONFIG --libs "lua" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + LUA_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "lua" 2>&1` + else + LUA_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "lua" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$LUA_PKG_ERRORS" >&5 + + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Lua not found" >&5 +$as_echo "$as_me: WARNING: Lua not found" >&2;} + enable_lua=no + +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Lua not found" >&5 +$as_echo "$as_me: WARNING: Lua not found" >&2;} + enable_lua=no + +else + LUA_CFLAGS=$pkg_cv_LUA_CFLAGS + LUA_LIBS=$pkg_cv_LUA_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + + old_LIBS="$LIBS" + LIBS="$LUA_LIBS $LIBS" + for ac_func in lua_isinteger +do : + ac_fn_c_check_func "$LINENO" "lua_isinteger" "ac_cv_func_lua_isinteger" +if test "x$ac_cv_func_lua_isinteger" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_LUA_ISINTEGER 1 +_ACEOF + +fi +done + + LIBS="$old_LIBS" + +fi + +fi + if test "x$enable_lua" = "xyes"; then + HAVE_LUA_TRUE= + HAVE_LUA_FALSE='#' +else + HAVE_LUA_TRUE='#' + HAVE_LUA_FALSE= +fi + + +# Check whether --enable-golang was given. +if test "${enable_golang+set}" = set; then : + enableval=$enable_golang; +else + enable_golang=yes +fi + +if test "x$enable_golang" != "xno"; then : + + # Extract the first word of "go", so it can be a program name with args. +set dummy go; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_GOLANG+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$GOLANG"; then + ac_cv_prog_GOLANG="$GOLANG" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_GOLANG="go" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + + test -z "$ac_cv_prog_GOLANG" && ac_cv_prog_GOLANG="no" +fi +fi +GOLANG=$ac_cv_prog_GOLANG +if test -n "$GOLANG"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $GOLANG" >&5 +$as_echo "$GOLANG" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + if test "x$GOLANG" != "xno"; then : + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $GOLANG is usable" >&5 +$as_echo_n "checking if $GOLANG is usable... " >&6; } + if $GOLANG run $srcdir/plugins/golang/config-test.go 2>&5; then : + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + # Substitute some golang environment. + GOOS=`$GOLANG env GOOS` + GOARCH=`$GOLANG env GOARCH` + GOROOT=`$GOLANG env GOROOT` + + + + +else + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: golang ($GOLANG) is installed but not usable" >&5 +$as_echo "$as_me: WARNING: golang ($GOLANG) is installed but not usable" >&2;} + GOLANG=no + +fi + +fi + +else + GOLANG=no +fi + if test "x$GOLANG" != "xno"; then + HAVE_GOLANG_TRUE= + HAVE_GOLANG_FALSE='#' +else + HAVE_GOLANG_TRUE='#' + HAVE_GOLANG_FALSE= +fi + + + +# Check whether --with-curl was given. +if test "${with_curl+set}" = set; then : + withval=$with_curl; +else + with_curl=check +fi + +if test "$with_curl" != "no"; then : + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for CURL" >&5 +$as_echo_n "checking for CURL... " >&6; } + +if test -n "$CURL_CFLAGS"; then + pkg_cv_CURL_CFLAGS="$CURL_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libcurl\""; } >&5 + ($PKG_CONFIG --exists --print-errors "libcurl") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_CURL_CFLAGS=`$PKG_CONFIG --cflags "libcurl" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$CURL_LIBS"; then + pkg_cv_CURL_LIBS="$CURL_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libcurl\""; } >&5 + ($PKG_CONFIG --exists --print-errors "libcurl") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_CURL_LIBS=`$PKG_CONFIG --libs "libcurl" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + CURL_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libcurl" 2>&1` + else + CURL_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libcurl" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$CURL_PKG_ERRORS" >&5 + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: curl not found, curl plugin will be disabled" >&5 +$as_echo "$as_me: WARNING: curl not found, curl plugin will be disabled" >&2;} +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: curl not found, curl plugin will be disabled" >&5 +$as_echo "$as_me: WARNING: curl not found, curl plugin will be disabled" >&2;} +else + CURL_CFLAGS=$pkg_cv_CURL_CFLAGS + CURL_LIBS=$pkg_cv_CURL_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + +$as_echo "#define HAVE_CURL 1" >>confdefs.h + + ac_fn_c_check_decl "$LINENO" "CURLOPT_UNIX_SOCKET_PATH" "ac_cv_have_decl_CURLOPT_UNIX_SOCKET_PATH" "#include +" +if test "x$ac_cv_have_decl_CURLOPT_UNIX_SOCKET_PATH" = xyes; then : + + +$as_echo "#define HAVE_CURLOPT_UNIX_SOCKET_PATH 1" >>confdefs.h + + +fi + + +fi + +fi + if test "x$CURL_LIBS" != "x"; then + HAVE_CURL_TRUE= + HAVE_CURL_FALSE='#' +else + HAVE_CURL_TRUE='#' + HAVE_CURL_FALSE= +fi + + + +# Check whether --with-ssh was given. +if test "${with_ssh+set}" = set; then : + withval=$with_ssh; +else + with_ssh=check +fi + +if test "$with_ssh" != "no"; then : + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for SSH" >&5 +$as_echo_n "checking for SSH... " >&6; } + +if test -n "$SSH_CFLAGS"; then + pkg_cv_SSH_CFLAGS="$SSH_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libssh >= 0.8.0\""; } >&5 + ($PKG_CONFIG --exists --print-errors "libssh >= 0.8.0") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_SSH_CFLAGS=`$PKG_CONFIG --cflags "libssh >= 0.8.0" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$SSH_LIBS"; then + pkg_cv_SSH_LIBS="$SSH_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libssh >= 0.8.0\""; } >&5 + ($PKG_CONFIG --exists --print-errors "libssh >= 0.8.0") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_SSH_LIBS=`$PKG_CONFIG --libs "libssh >= 0.8.0" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + SSH_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libssh >= 0.8.0" 2>&1` + else + SSH_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libssh >= 0.8.0" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$SSH_PKG_ERRORS" >&5 + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libssh not found, ssh plugin will be disabled" >&5 +$as_echo "$as_me: WARNING: libssh not found, ssh plugin will be disabled" >&2;} +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libssh not found, ssh plugin will be disabled" >&5 +$as_echo "$as_me: WARNING: libssh not found, ssh plugin will be disabled" >&2;} +else + SSH_CFLAGS=$pkg_cv_SSH_CFLAGS + SSH_LIBS=$pkg_cv_SSH_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + +fi + +fi + if test "x$SSH_LIBS" != "x"; then + HAVE_SSH_TRUE= + HAVE_SSH_FALSE='#' +else + HAVE_SSH_TRUE='#' + HAVE_SSH_FALSE= +fi + + +ISOPROG="no" + +# Check whether --with-iso was given. +if test "${with_iso+set}" = set; then : + withval=$with_iso; +else + with_iso=check +fi + +if test "$with_iso" != "no"; then : + + # Extract the first word of "genisoimage", so it can be a program name with args. +set dummy genisoimage; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_GENISOIMAGE+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$GENISOIMAGE"; then + ac_cv_prog_GENISOIMAGE="$GENISOIMAGE" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_GENISOIMAGE="genisoimage" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + + test -z "$ac_cv_prog_GENISOIMAGE" && ac_cv_prog_GENISOIMAGE="no" +fi +fi +GENISOIMAGE=$ac_cv_prog_GENISOIMAGE +if test -n "$GENISOIMAGE"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $GENISOIMAGE" >&5 +$as_echo "$GENISOIMAGE" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + # Extract the first word of "mkisofs", so it can be a program name with args. +set dummy mkisofs; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_MKISOFS+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$MKISOFS"; then + ac_cv_prog_MKISOFS="$MKISOFS" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_MKISOFS="mkisofs" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + + test -z "$ac_cv_prog_MKISOFS" && ac_cv_prog_MKISOFS="no" +fi +fi +MKISOFS=$ac_cv_prog_MKISOFS +if test -n "$MKISOFS"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MKISOFS" >&5 +$as_echo "$MKISOFS" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + if test "x$GENISOIMAGE" != "xno"; then : + + ISOPROG="$GENISOIMAGE" + +else + + if test "x$MKISOFS" != "xno"; then : + + ISOPROG="$MKISOFS" + +fi + +fi + if test "x$ISOPROG" != "xno"; then : + + +cat >>confdefs.h <<_ACEOF +#define ISOPROG "$ISOPROG" +_ACEOF + + +fi + +fi + + if test "x$ISOPROG" != "xno"; then + HAVE_ISO_TRUE= + HAVE_ISO_FALSE='#' +else + HAVE_ISO_TRUE='#' + HAVE_ISO_FALSE= +fi + + + +# Check whether --with-libvirt was given. +if test "${with_libvirt+set}" = set; then : + withval=$with_libvirt; +else + with_libvirt=check +fi + +if test "$with_libvirt" != "no"; then : + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for LIBVIRT" >&5 +$as_echo_n "checking for LIBVIRT... " >&6; } + +if test -n "$LIBVIRT_CFLAGS"; then + pkg_cv_LIBVIRT_CFLAGS="$LIBVIRT_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libvirt\""; } >&5 + ($PKG_CONFIG --exists --print-errors "libvirt") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_LIBVIRT_CFLAGS=`$PKG_CONFIG --cflags "libvirt" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$LIBVIRT_LIBS"; then + pkg_cv_LIBVIRT_LIBS="$LIBVIRT_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libvirt\""; } >&5 + ($PKG_CONFIG --exists --print-errors "libvirt") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_LIBVIRT_LIBS=`$PKG_CONFIG --libs "libvirt" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + LIBVIRT_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libvirt" 2>&1` + else + LIBVIRT_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libvirt" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$LIBVIRT_PKG_ERRORS" >&5 + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libvirt not found, libvirt plugin will be disabled" >&5 +$as_echo "$as_me: WARNING: libvirt not found, libvirt plugin will be disabled" >&2;} +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libvirt not found, libvirt plugin will be disabled" >&5 +$as_echo "$as_me: WARNING: libvirt not found, libvirt plugin will be disabled" >&2;} +else + LIBVIRT_CFLAGS=$pkg_cv_LIBVIRT_CFLAGS + LIBVIRT_LIBS=$pkg_cv_LIBVIRT_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + +$as_echo "#define HAVE_LIBVIRT 1" >>confdefs.h + + +fi + +fi + if test "x$LIBVIRT_LIBS" != "x"; then + HAVE_LIBVIRT_TRUE= + HAVE_LIBVIRT_FALSE='#' +else + HAVE_LIBVIRT_TRUE='#' + HAVE_LIBVIRT_FALSE= +fi + + + +# Check whether --with-zlib was given. +if test "${with_zlib+set}" = set; then : + withval=$with_zlib; +else + with_zlib=check +fi + +if test "$with_zlib" != "no"; then : + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ZLIB" >&5 +$as_echo_n "checking for ZLIB... " >&6; } + +if test -n "$ZLIB_CFLAGS"; then + pkg_cv_ZLIB_CFLAGS="$ZLIB_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"zlib >= 1.2.3.5\""; } >&5 + ($PKG_CONFIG --exists --print-errors "zlib >= 1.2.3.5") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_ZLIB_CFLAGS=`$PKG_CONFIG --cflags "zlib >= 1.2.3.5" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$ZLIB_LIBS"; then + pkg_cv_ZLIB_LIBS="$ZLIB_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"zlib >= 1.2.3.5\""; } >&5 + ($PKG_CONFIG --exists --print-errors "zlib >= 1.2.3.5") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_ZLIB_LIBS=`$PKG_CONFIG --libs "zlib >= 1.2.3.5" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + ZLIB_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "zlib >= 1.2.3.5" 2>&1` + else + ZLIB_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "zlib >= 1.2.3.5" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$ZLIB_PKG_ERRORS" >&5 + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: zlib >= 1.2.3.5 not found, gzip filter will be disabled" >&5 +$as_echo "$as_me: WARNING: zlib >= 1.2.3.5 not found, gzip filter will be disabled" >&2;} +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: zlib >= 1.2.3.5 not found, gzip filter will be disabled" >&5 +$as_echo "$as_me: WARNING: zlib >= 1.2.3.5 not found, gzip filter will be disabled" >&2;} +else + ZLIB_CFLAGS=$pkg_cv_ZLIB_CFLAGS + ZLIB_LIBS=$pkg_cv_ZLIB_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + +$as_echo "#define HAVE_ZLIB 1" >>confdefs.h + + +fi + +fi + if test "x$ZLIB_LIBS" != "x"; then + HAVE_ZLIB_TRUE= + HAVE_ZLIB_FALSE='#' +else + HAVE_ZLIB_TRUE='#' + HAVE_ZLIB_FALSE= +fi + + + +# Check whether --with-libnbd was given. +if test "${with_libnbd+set}" = set; then : + withval=$with_libnbd; +else + with_libnbd=check +fi + +if test "$with_libnbd" != "no"; then : + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for LIBNBD" >&5 +$as_echo_n "checking for LIBNBD... " >&6; } + +if test -n "$LIBNBD_CFLAGS"; then + pkg_cv_LIBNBD_CFLAGS="$LIBNBD_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libnbd >= 0.9.8\""; } >&5 + ($PKG_CONFIG --exists --print-errors "libnbd >= 0.9.8") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_LIBNBD_CFLAGS=`$PKG_CONFIG --cflags "libnbd >= 0.9.8" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$LIBNBD_LIBS"; then + pkg_cv_LIBNBD_LIBS="$LIBNBD_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libnbd >= 0.9.8\""; } >&5 + ($PKG_CONFIG --exists --print-errors "libnbd >= 0.9.8") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_LIBNBD_LIBS=`$PKG_CONFIG --libs "libnbd >= 0.9.8" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + LIBNBD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libnbd >= 0.9.8" 2>&1` + else + LIBNBD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libnbd >= 0.9.8" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$LIBNBD_PKG_ERRORS" >&5 + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libnbd >= 0.9.8 not found, nbd plugin will be crippled" >&5 +$as_echo "$as_me: WARNING: libnbd >= 0.9.8 not found, nbd plugin will be crippled" >&2;} +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libnbd >= 0.9.8 not found, nbd plugin will be crippled" >&5 +$as_echo "$as_me: WARNING: libnbd >= 0.9.8 not found, nbd plugin will be crippled" >&2;} +else + LIBNBD_CFLAGS=$pkg_cv_LIBNBD_CFLAGS + LIBNBD_LIBS=$pkg_cv_LIBNBD_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + +$as_echo "#define HAVE_LIBNBD 1" >>confdefs.h + + +fi + +fi + +# Check whether --enable-nbd-plugin was given. +if test "${enable_nbd_plugin+set}" = set; then : + enableval=$enable_nbd_plugin; +else + enable_nbd_plugin=yes +fi + + if test "x$LIBNBD_LIBS" != "x" && test "x$enable_nbd_plugin" = "xyes"; then + HAVE_LIBNBD_TRUE= + HAVE_LIBNBD_FALSE='#' +else + HAVE_LIBNBD_TRUE='#' + HAVE_LIBNBD_FALSE= +fi + + + +# Check whether --with-liblzma was given. +if test "${with_liblzma+set}" = set; then : + withval=$with_liblzma; +else + with_liblzma=check +fi + +if test "$with_liblzma" != "no"; then : + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for LIBLZMA" >&5 +$as_echo_n "checking for LIBLZMA... " >&6; } + +if test -n "$LIBLZMA_CFLAGS"; then + pkg_cv_LIBLZMA_CFLAGS="$LIBLZMA_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"liblzma\""; } >&5 + ($PKG_CONFIG --exists --print-errors "liblzma") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_LIBLZMA_CFLAGS=`$PKG_CONFIG --cflags "liblzma" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$LIBLZMA_LIBS"; then + pkg_cv_LIBLZMA_LIBS="$LIBLZMA_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"liblzma\""; } >&5 + ($PKG_CONFIG --exists --print-errors "liblzma") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_LIBLZMA_LIBS=`$PKG_CONFIG --libs "liblzma" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + LIBLZMA_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "liblzma" 2>&1` + else + LIBLZMA_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "liblzma" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$LIBLZMA_PKG_ERRORS" >&5 + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: liblzma not found, xz filter will be disabled" >&5 +$as_echo "$as_me: WARNING: liblzma not found, xz filter will be disabled" >&2;} +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: liblzma not found, xz filter will be disabled" >&5 +$as_echo "$as_me: WARNING: liblzma not found, xz filter will be disabled" >&2;} +else + LIBLZMA_CFLAGS=$pkg_cv_LIBLZMA_CFLAGS + LIBLZMA_LIBS=$pkg_cv_LIBLZMA_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + +$as_echo "#define HAVE_LIBLZMA 1" >>confdefs.h + + +fi + +fi + if test "x$LIBLZMA_LIBS" != "x"; then + HAVE_LIBLZMA_TRUE= + HAVE_LIBLZMA_FALSE='#' +else + HAVE_LIBLZMA_TRUE='#' + HAVE_LIBLZMA_FALSE= +fi + + + +# Check whether --with-libzstd was given. +if test "${with_libzstd+set}" = set; then : + withval=$with_libzstd; +else + with_libzstd=check +fi + +if test "$with_libzstd" != "no"; then : + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for LIBZSTD" >&5 +$as_echo_n "checking for LIBZSTD... " >&6; } + +if test -n "$LIBZSTD_CFLAGS"; then + pkg_cv_LIBZSTD_CFLAGS="$LIBZSTD_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5 + ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_LIBZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$LIBZSTD_LIBS"; then + pkg_cv_LIBZSTD_LIBS="$LIBZSTD_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5 + ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_LIBZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + LIBZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1` + else + LIBZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$LIBZSTD_PKG_ERRORS" >&5 + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libzstd not found, allocator=zstd will be disabled" >&5 +$as_echo "$as_me: WARNING: libzstd not found, allocator=zstd will be disabled" >&2;} +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libzstd not found, allocator=zstd will be disabled" >&5 +$as_echo "$as_me: WARNING: libzstd not found, allocator=zstd will be disabled" >&2;} +else + LIBZSTD_CFLAGS=$pkg_cv_LIBZSTD_CFLAGS + LIBZSTD_LIBS=$pkg_cv_LIBZSTD_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + +$as_echo "#define HAVE_LIBZSTD 1" >>confdefs.h + + +fi + +fi + if test "x$LIBZSTD_LIBS" != "x"; then + HAVE_LIBZSTD_TRUE= + HAVE_LIBZSTD_FALSE='#' +else + HAVE_LIBZSTD_TRUE='#' + HAVE_LIBZSTD_FALSE= +fi + + + +# Check whether --with-libguestfs was given. +if test "${with_libguestfs+set}" = set; then : + withval=$with_libguestfs; +else + with_libguestfs=check +fi + +if test "$with_libguestfs" != "no"; then : + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for LIBGUESTFS" >&5 +$as_echo_n "checking for LIBGUESTFS... " >&6; } + +if test -n "$LIBGUESTFS_CFLAGS"; then + pkg_cv_LIBGUESTFS_CFLAGS="$LIBGUESTFS_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libguestfs\""; } >&5 + ($PKG_CONFIG --exists --print-errors "libguestfs") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_LIBGUESTFS_CFLAGS=`$PKG_CONFIG --cflags "libguestfs" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$LIBGUESTFS_LIBS"; then + pkg_cv_LIBGUESTFS_LIBS="$LIBGUESTFS_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libguestfs\""; } >&5 + ($PKG_CONFIG --exists --print-errors "libguestfs") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_LIBGUESTFS_LIBS=`$PKG_CONFIG --libs "libguestfs" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + LIBGUESTFS_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libguestfs" 2>&1` + else + LIBGUESTFS_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libguestfs" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$LIBGUESTFS_PKG_ERRORS" >&5 + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libguestfs not found, guestfs plugin and tests will be disabled" >&5 +$as_echo "$as_me: WARNING: libguestfs not found, guestfs plugin and tests will be disabled" >&2;} +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libguestfs not found, guestfs plugin and tests will be disabled" >&5 +$as_echo "$as_me: WARNING: libguestfs not found, guestfs plugin and tests will be disabled" >&2;} +else + LIBGUESTFS_CFLAGS=$pkg_cv_LIBGUESTFS_CFLAGS + LIBGUESTFS_LIBS=$pkg_cv_LIBGUESTFS_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + # Although the library was found, we want to make sure it supports nbd + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +#include + +int +main () +{ + +#ifndef GUESTFS_ADD_DRIVE_OPTS_PROTOCOL +#error unsupported +#endif + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + + + + +$as_echo "#define HAVE_LIBGUESTFS 1" >>confdefs.h + + +else + + LIBGUESTFS_LIBS= + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libguestfs too old, guestfs plugin and tests will be disabled" >&5 +$as_echo "$as_me: WARNING: libguestfs too old, guestfs plugin and tests will be disabled" >&2;} +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + +fi + +fi + if test "x$LIBGUESTFS_LIBS" != "x"; then + HAVE_LIBGUESTFS_TRUE= + HAVE_LIBGUESTFS_FALSE='#' +else + HAVE_LIBGUESTFS_TRUE='#' + HAVE_LIBGUESTFS_FALSE= +fi + + +# Extract the first word of "guestfish", so it can be a program name with args. +set dummy guestfish; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_GUESTFISH+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$GUESTFISH"; then + ac_cv_prog_GUESTFISH="$GUESTFISH" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_GUESTFISH="guestfish" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + + test -z "$ac_cv_prog_GUESTFISH" && ac_cv_prog_GUESTFISH="no" +fi +fi +GUESTFISH=$ac_cv_prog_GUESTFISH +if test -n "$GUESTFISH"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $GUESTFISH" >&5 +$as_echo "$GUESTFISH" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + if test "x$GUESTFISH" != "xno"; then + HAVE_GUESTFISH_TRUE= + HAVE_GUESTFISH_FALSE='#' +else + HAVE_GUESTFISH_TRUE='#' + HAVE_GUESTFISH_FALSE= +fi + + + +# Check whether --with-ext2 was given. +if test "${with_ext2+set}" = set; then : + withval=$with_ext2; +else + with_ext2=check +fi + +if test "$with_ext2" != "no"; then : + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for EXT2FS" >&5 +$as_echo_n "checking for EXT2FS... " >&6; } + +if test -n "$EXT2FS_CFLAGS"; then + pkg_cv_EXT2FS_CFLAGS="$EXT2FS_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"ext2fs\""; } >&5 + ($PKG_CONFIG --exists --print-errors "ext2fs") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_EXT2FS_CFLAGS=`$PKG_CONFIG --cflags "ext2fs" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$EXT2FS_LIBS"; then + pkg_cv_EXT2FS_LIBS="$EXT2FS_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"ext2fs\""; } >&5 + ($PKG_CONFIG --exists --print-errors "ext2fs") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_EXT2FS_LIBS=`$PKG_CONFIG --libs "ext2fs" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + EXT2FS_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "ext2fs" 2>&1` + else + EXT2FS_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "ext2fs" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$EXT2FS_PKG_ERRORS" >&5 + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: ext2fs not found, ext2 filter will be disabled" >&5 +$as_echo "$as_me: WARNING: ext2fs not found, ext2 filter will be disabled" >&2;} +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: ext2fs not found, ext2 filter will be disabled" >&5 +$as_echo "$as_me: WARNING: ext2fs not found, ext2 filter will be disabled" >&2;} +else + EXT2FS_CFLAGS=$pkg_cv_EXT2FS_CFLAGS + EXT2FS_LIBS=$pkg_cv_EXT2FS_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + +$as_echo "#define HAVE_EXT2FS 1" >>confdefs.h + + +fi + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for COM_ERR" >&5 +$as_echo_n "checking for COM_ERR... " >&6; } + +if test -n "$COM_ERR_CFLAGS"; then + pkg_cv_COM_ERR_CFLAGS="$COM_ERR_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"com_err\""; } >&5 + ($PKG_CONFIG --exists --print-errors "com_err") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_COM_ERR_CFLAGS=`$PKG_CONFIG --cflags "com_err" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$COM_ERR_LIBS"; then + pkg_cv_COM_ERR_LIBS="$COM_ERR_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"com_err\""; } >&5 + ($PKG_CONFIG --exists --print-errors "com_err") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_COM_ERR_LIBS=`$PKG_CONFIG --libs "com_err" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + COM_ERR_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "com_err" 2>&1` + else + COM_ERR_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "com_err" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$COM_ERR_PKG_ERRORS" >&5 + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: com_err not found, ext2 filter will be disabled" >&5 +$as_echo "$as_me: WARNING: com_err not found, ext2 filter will be disabled" >&2;} +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: com_err not found, ext2 filter will be disabled" >&5 +$as_echo "$as_me: WARNING: com_err not found, ext2 filter will be disabled" >&2;} +else + COM_ERR_CFLAGS=$pkg_cv_COM_ERR_CFLAGS + COM_ERR_LIBS=$pkg_cv_COM_ERR_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + +$as_echo "#define HAVE_COM_ERR 1" >>confdefs.h + + +fi + + ac_fn_c_check_member "$LINENO" "struct struct_io_manager" "cache_readahead" "ac_cv_member_struct_struct_io_manager_cache_readahead" "$ac_includes_default" +if test "x$ac_cv_member_struct_struct_io_manager_cache_readahead" = xyes; then : + +cat >>confdefs.h <<_ACEOF +#define HAVE_STRUCT_STRUCT_IO_MANAGER_CACHE_READAHEAD 1 +_ACEOF + + +fi +ac_fn_c_check_member "$LINENO" "struct struct_io_manager" "zeroout" "ac_cv_member_struct_struct_io_manager_zeroout" "$ac_includes_default" +if test "x$ac_cv_member_struct_struct_io_manager_zeroout" = xyes; then : + +cat >>confdefs.h <<_ACEOF +#define HAVE_STRUCT_STRUCT_IO_MANAGER_ZEROOUT 1 +_ACEOF + + +fi + + +fi + if test "x$EXT2FS_LIBS" != "x" && test "x$COM_ERR_LIBS" != "x"; then + HAVE_EXT2_TRUE= + HAVE_EXT2_FALSE='#' +else + HAVE_EXT2_TRUE='#' + HAVE_EXT2_FALSE= +fi + + +# Check whether --enable-torrent was given. +if test "${enable_torrent+set}" = set; then : + enableval=$enable_torrent; +else + enable_torrent=check + +fi + +if test "$enable_torrent" != "xno"; then : + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for LIBTORRENT" >&5 +$as_echo_n "checking for LIBTORRENT... " >&6; } + +if test -n "$LIBTORRENT_CFLAGS"; then + pkg_cv_LIBTORRENT_CFLAGS="$LIBTORRENT_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libtorrent-rasterbar\""; } >&5 + ($PKG_CONFIG --exists --print-errors "libtorrent-rasterbar") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_LIBTORRENT_CFLAGS=`$PKG_CONFIG --cflags "libtorrent-rasterbar" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$LIBTORRENT_LIBS"; then + pkg_cv_LIBTORRENT_LIBS="$LIBTORRENT_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libtorrent-rasterbar\""; } >&5 + ($PKG_CONFIG --exists --print-errors "libtorrent-rasterbar") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_LIBTORRENT_LIBS=`$PKG_CONFIG --libs "libtorrent-rasterbar" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + LIBTORRENT_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libtorrent-rasterbar" 2>&1` + else + LIBTORRENT_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libtorrent-rasterbar" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$LIBTORRENT_PKG_ERRORS" >&5 + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libtorrent-rasterbar not found, bittorrent plugin will be disabled" >&5 +$as_echo "$as_me: WARNING: libtorrent-rasterbar not found, bittorrent plugin will be disabled" >&2;} +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libtorrent-rasterbar not found, bittorrent plugin will be disabled" >&5 +$as_echo "$as_me: WARNING: libtorrent-rasterbar not found, bittorrent plugin will be disabled" >&2;} +else + LIBTORRENT_CFLAGS=$pkg_cv_LIBTORRENT_CFLAGS + LIBTORRENT_LIBS=$pkg_cv_LIBTORRENT_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + +fi + +fi + if test "x$have_cxx" = "xyes" && test "x$LIBTORRENT_LIBS" != "x"; then + HAVE_TORRENT_TRUE= + HAVE_TORRENT_FALSE='#' +else + HAVE_TORRENT_TRUE='#' + HAVE_TORRENT_FALSE= +fi + + +# Check whether --enable-vddk was given. +if test "${enable_vddk+set}" = set; then : + enableval=$enable_vddk; +else + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if the host CPU is compatible with VDDK" >&5 +$as_echo_n "checking if the host CPU is compatible with VDDK... 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If it contains results you don't +# want to keep, you may remove or edit it. +# +# config.status only pays attention to the cache file if you give it +# the --recheck option to rerun configure. +# +# `ac_cv_env_foo' variables (set or unset) will be overridden when +# loading this file, other *unset* `ac_cv_foo' will be assigned the +# following values. + +_ACEOF + +# The following way of writing the cache mishandles newlines in values, +# but we know of no workaround that is simple, portable, and efficient. +# So, we kill variables containing newlines. +# Ultrix sh set writes to stderr and can't be redirected directly, +# and sets the high bit in the cache file unless we assign to the vars. +( + for ac_var in `(set) 2>&1 | sed -n 's/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'`; do + eval ac_val=\$$ac_var + case $ac_val in #( + *${as_nl}*) + case $ac_var in #( + *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5 +$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;; + esac + case $ac_var in #( + _ | IFS | as_nl) ;; #( + BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #( + *) { eval $ac_var=; unset $ac_var;} ;; + esac ;; + esac + done + + (set) 2>&1 | + case $as_nl`(ac_space=' '; set) 2>&1` in #( + *${as_nl}ac_space=\ *) + # `set' does not quote correctly, so add quotes: double-quote + # substitution turns \\\\ into \\, and sed turns \\ into \. + sed -n \ + "s/'/'\\\\''/g; + s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p" + ;; #( + *) + # `set' quotes correctly as required by POSIX, so do not add quotes. + sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p" + ;; + esac | + sort +) | + sed ' + /^ac_cv_env_/b end + t clear + :clear + s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/ + t end + s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/ + :end' >>confcache +if diff "$cache_file" confcache >/dev/null 2>&1; then :; else + if test -w "$cache_file"; then + if test "x$cache_file" != "x/dev/null"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5 +$as_echo "$as_me: updating cache $cache_file" >&6;} + if test ! -f "$cache_file" || test -h "$cache_file"; then + cat confcache >"$cache_file" + else + case $cache_file in #( + */* | ?:*) + mv -f confcache "$cache_file"$$ && + mv -f "$cache_file"$$ "$cache_file" ;; #( + *) + mv -f confcache "$cache_file" ;; + esac + fi + fi + else + { $as_echo "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5 +$as_echo "$as_me: not updating unwritable cache $cache_file" >&6;} + fi +fi +rm -f confcache + +test "x$prefix" = xNONE && prefix=$ac_default_prefix +# Let make expand exec_prefix. +test "x$exec_prefix" = xNONE && exec_prefix='${prefix}' + +DEFS=-DHAVE_CONFIG_H + +ac_libobjs= +ac_ltlibobjs= +U= +for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue + # 1. Remove the extension, and $U if already installed. + ac_script='s/\$U\././;s/\.o$//;s/\.obj$//' + ac_i=`$as_echo "$ac_i" | sed "$ac_script"` + # 2. Prepend LIBOBJDIR. When used with automake>=1.10 LIBOBJDIR + # will be set to the directory where LIBOBJS objects are built. + as_fn_append ac_libobjs " \${LIBOBJDIR}$ac_i\$U.$ac_objext" + as_fn_append ac_ltlibobjs " \${LIBOBJDIR}$ac_i"'$U.lo' +done +LIBOBJS=$ac_libobjs + +LTLIBOBJS=$ac_ltlibobjs + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking that generated files are newer than configure" >&5 +$as_echo_n "checking that generated files are newer than configure... " >&6; } + if test -n "$am_sleep_pid"; then + # Hide warnings about reused PIDs. + wait $am_sleep_pid 2>/dev/null + fi + { $as_echo "$as_me:${as_lineno-$LINENO}: result: done" >&5 +$as_echo "done" >&6; } +if test -z "${AMDEP_TRUE}" && test -z "${AMDEP_FALSE}"; then + as_fn_error $? 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"$LINENO" 5 +fi +if test -z "${ENABLE_LIBFUZZER_TRUE}" && test -z "${ENABLE_LIBFUZZER_FALSE}"; then + as_fn_error $? "conditional \"ENABLE_LIBFUZZER\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_BASH_COMPLETION_TRUE}" && test -z "${HAVE_BASH_COMPLETION_FALSE}"; then + as_fn_error $? "conditional \"HAVE_BASH_COMPLETION\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_POD_TRUE}" && test -z "${HAVE_POD_FALSE}"; then + as_fn_error $? "conditional \"HAVE_POD\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_PLUGINS_TRUE}" && test -z "${HAVE_PLUGINS_FALSE}"; then + as_fn_error $? "conditional \"HAVE_PLUGINS\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_PERL_TRUE}" && test -z "${HAVE_PERL_FALSE}"; then + as_fn_error $? "conditional \"HAVE_PERL\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_PYTHON_TRUE}" && test -z "${HAVE_PYTHON_FALSE}"; then + as_fn_error $? "conditional \"HAVE_PYTHON\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_OCAML_TRUE}" && test -z "${HAVE_OCAML_FALSE}"; then + as_fn_error $? "conditional \"HAVE_OCAML\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_RUST_TRUE}" && test -z "${HAVE_RUST_FALSE}"; then + as_fn_error $? "conditional \"HAVE_RUST\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_RUBY_TRUE}" && test -z "${HAVE_RUBY_FALSE}"; then + as_fn_error $? "conditional \"HAVE_RUBY\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_TCL_TRUE}" && test -z "${HAVE_TCL_FALSE}"; then + as_fn_error $? "conditional \"HAVE_TCL\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_LUA_TRUE}" && test -z "${HAVE_LUA_FALSE}"; then + as_fn_error $? "conditional \"HAVE_LUA\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_GOLANG_TRUE}" && test -z "${HAVE_GOLANG_FALSE}"; then + as_fn_error $? "conditional \"HAVE_GOLANG\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_CURL_TRUE}" && test -z "${HAVE_CURL_FALSE}"; then + as_fn_error $? "conditional \"HAVE_CURL\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_SSH_TRUE}" && test -z "${HAVE_SSH_FALSE}"; then + as_fn_error $? "conditional \"HAVE_SSH\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_ISO_TRUE}" && test -z "${HAVE_ISO_FALSE}"; then + as_fn_error $? "conditional \"HAVE_ISO\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_LIBVIRT_TRUE}" && test -z "${HAVE_LIBVIRT_FALSE}"; then + as_fn_error $? "conditional \"HAVE_LIBVIRT\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_ZLIB_TRUE}" && test -z "${HAVE_ZLIB_FALSE}"; then + as_fn_error $? "conditional \"HAVE_ZLIB\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_LIBNBD_TRUE}" && test -z "${HAVE_LIBNBD_FALSE}"; then + as_fn_error $? "conditional \"HAVE_LIBNBD\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_LIBLZMA_TRUE}" && test -z "${HAVE_LIBLZMA_FALSE}"; then + as_fn_error $? "conditional \"HAVE_LIBLZMA\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_LIBZSTD_TRUE}" && test -z "${HAVE_LIBZSTD_FALSE}"; then + as_fn_error $? "conditional \"HAVE_LIBZSTD\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_LIBGUESTFS_TRUE}" && test -z "${HAVE_LIBGUESTFS_FALSE}"; then + as_fn_error $? "conditional \"HAVE_LIBGUESTFS\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_GUESTFISH_TRUE}" && test -z "${HAVE_GUESTFISH_FALSE}"; then + as_fn_error $? "conditional \"HAVE_GUESTFISH\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_EXT2_TRUE}" && test -z "${HAVE_EXT2_FALSE}"; then + as_fn_error $? "conditional \"HAVE_EXT2\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_TORRENT_TRUE}" && test -z "${HAVE_TORRENT_FALSE}"; then + as_fn_error $? "conditional \"HAVE_TORRENT\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_VDDK_TRUE}" && test -z "${HAVE_VDDK_FALSE}"; then + as_fn_error $? "conditional \"HAVE_VDDK\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi + +: "${CONFIG_STATUS=./config.status}" +ac_write_fail=0 +ac_clean_files_save=$ac_clean_files +ac_clean_files="$ac_clean_files $CONFIG_STATUS" +{ $as_echo "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5 +$as_echo "$as_me: creating $CONFIG_STATUS" >&6;} +as_write_fail=0 +cat >$CONFIG_STATUS <<_ASEOF || as_write_fail=1 +#! $SHELL +# Generated by $as_me. +# Run this file to recreate the current configuration. +# Compiler output produced by configure, useful for debugging +# configure, is in config.log if it exists. + +debug=false +ac_cs_recheck=false +ac_cs_silent=false + +SHELL=\${CONFIG_SHELL-$SHELL} +export SHELL +_ASEOF +cat >>$CONFIG_STATUS <<\_ASEOF || as_write_fail=1 +## -------------------- ## +## M4sh Initialization. ## +## -------------------- ## + +# Be more Bourne compatible +DUALCASE=1; export DUALCASE # for MKS sh +if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then : + emulate sh + NULLCMD=: + # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which + # is contrary to our usage. Disable this feature. + alias -g '${1+"$@"}'='"$@"' + setopt NO_GLOB_SUBST +else + case `(set -o) 2>/dev/null` in #( + *posix*) : + set -o posix ;; #( + *) : + ;; +esac +fi + + +as_nl=' +' +export as_nl +# Printing a long string crashes Solaris 7 /usr/bin/printf. +as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\' +as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo +as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo +# Prefer a ksh shell builtin over an external printf program on Solaris, +# but without wasting forks for bash or zsh. +if test -z "$BASH_VERSION$ZSH_VERSION" \ + && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then + as_echo='print -r --' + as_echo_n='print -rn --' +elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then + as_echo='printf %s\n' + as_echo_n='printf %s' +else + if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then + as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"' + as_echo_n='/usr/ucb/echo -n' + else + as_echo_body='eval expr "X$1" : "X\\(.*\\)"' + as_echo_n_body='eval + arg=$1; + case $arg in #( + *"$as_nl"*) + expr "X$arg" : "X\\(.*\\)$as_nl"; + arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;; + esac; + expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl" + ' + export as_echo_n_body + as_echo_n='sh -c $as_echo_n_body as_echo' + fi + export as_echo_body + as_echo='sh -c $as_echo_body as_echo' +fi + +# The user is always right. +if test "${PATH_SEPARATOR+set}" != set; then + PATH_SEPARATOR=: + (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && { + (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 || + PATH_SEPARATOR=';' + } +fi + + +# IFS +# We need space, tab and new line, in precisely that order. Quoting is +# there to prevent editors from complaining about space-tab. +# (If _AS_PATH_WALK were called with IFS unset, it would disable word +# splitting by setting IFS to empty value.) +IFS=" "" $as_nl" + +# Find who we are. Look in the path if we contain no directory separator. +as_myself= +case $0 in #(( + *[\\/]* ) as_myself=$0 ;; + *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break + done +IFS=$as_save_IFS + + ;; +esac +# We did not find ourselves, most probably we were run as `sh COMMAND' +# in which case we are not to be found in the path. +if test "x$as_myself" = x; then + as_myself=$0 +fi +if test ! -f "$as_myself"; then + $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2 + exit 1 +fi + +# Unset variables that we do not need and which cause bugs (e.g. in +# pre-3.0 UWIN ksh). But do not cause bugs in bash 2.01; the "|| exit 1" +# suppresses any "Segmentation fault" message there. '((' could +# trigger a bug in pdksh 5.2.14. +for as_var in BASH_ENV ENV MAIL MAILPATH +do eval test x\${$as_var+set} = xset \ + && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || : +done +PS1='$ ' +PS2='> ' +PS4='+ ' + +# NLS nuisances. +LC_ALL=C +export LC_ALL +LANGUAGE=C +export LANGUAGE + +# CDPATH. +(unset CDPATH) >/dev/null 2>&1 && unset CDPATH + + +# as_fn_error STATUS ERROR [LINENO LOG_FD] +# ---------------------------------------- +# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are +# provided, also output the error to LOG_FD, referencing LINENO. Then exit the +# script with STATUS, using 1 if that was 0. +as_fn_error () +{ + as_status=$1; test $as_status -eq 0 && as_status=1 + if test "$4"; then + as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4 + fi + $as_echo "$as_me: error: $2" >&2 + as_fn_exit $as_status +} # as_fn_error + + +# as_fn_set_status STATUS +# ----------------------- +# Set $? to STATUS, without forking. +as_fn_set_status () +{ + return $1 +} # as_fn_set_status + +# as_fn_exit STATUS +# ----------------- +# Exit the shell with STATUS, even in a "trap 0" or "set -e" context. +as_fn_exit () +{ + set +e + as_fn_set_status $1 + exit $1 +} # as_fn_exit + +# as_fn_unset VAR +# --------------- +# Portably unset VAR. +as_fn_unset () +{ + { eval $1=; unset $1;} +} +as_unset=as_fn_unset +# as_fn_append VAR VALUE +# ---------------------- +# Append the text in VALUE to the end of the definition contained in VAR. Take +# advantage of any shell optimizations that allow amortized linear growth over +# repeated appends, instead of the typical quadratic growth present in naive +# implementations. +if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then : + eval 'as_fn_append () + { + eval $1+=\$2 + }' +else + as_fn_append () + { + eval $1=\$$1\$2 + } +fi # as_fn_append + +# as_fn_arith ARG... +# ------------------ +# Perform arithmetic evaluation on the ARGs, and store the result in the +# global $as_val. Take advantage of shells that can avoid forks. The arguments +# must be portable across $(()) and expr. +if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then : + eval 'as_fn_arith () + { + as_val=$(( $* )) + }' +else + as_fn_arith () + { + as_val=`expr "$@" || test $? -eq 1` + } +fi # as_fn_arith + + +if expr a : '\(a\)' >/dev/null 2>&1 && + test "X`expr 00001 : '.*\(...\)'`" = X001; then + as_expr=expr +else + as_expr=false +fi + +if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then + as_basename=basename +else + as_basename=false +fi + +if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then + as_dirname=dirname +else + as_dirname=false +fi + +as_me=`$as_basename -- "$0" || +$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \ + X"$0" : 'X\(//\)$' \| \ + X"$0" : 'X\(/\)' \| . 2>/dev/null || +$as_echo X/"$0" | + sed '/^.*\/\([^/][^/]*\)\/*$/{ + s//\1/ + q + } + /^X\/\(\/\/\)$/{ + s//\1/ + q + } + /^X\/\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + +# Avoid depending upon Character Ranges. +as_cr_letters='abcdefghijklmnopqrstuvwxyz' +as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ' +as_cr_Letters=$as_cr_letters$as_cr_LETTERS +as_cr_digits='0123456789' +as_cr_alnum=$as_cr_Letters$as_cr_digits + +ECHO_C= ECHO_N= ECHO_T= +case `echo -n x` in #((((( +-n*) + case `echo 'xy\c'` in + *c*) ECHO_T=' ';; # ECHO_T is single tab character. + xy) ECHO_C='\c';; + *) echo `echo ksh88 bug on AIX 6.1` > /dev/null + ECHO_T=' ';; + esac;; +*) + ECHO_N='-n';; +esac + +rm -f conf$$ conf$$.exe conf$$.file +if test -d conf$$.dir; then + rm -f conf$$.dir/conf$$.file +else + rm -f conf$$.dir + mkdir conf$$.dir 2>/dev/null +fi +if (echo >conf$$.file) 2>/dev/null; then + if ln -s conf$$.file conf$$ 2>/dev/null; then + as_ln_s='ln -s' + # ... but there are two gotchas: + # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail. + # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable. + # In both cases, we have to default to `cp -pR'. + ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe || + as_ln_s='cp -pR' + elif ln conf$$.file conf$$ 2>/dev/null; then + as_ln_s=ln + else + as_ln_s='cp -pR' + fi +else + as_ln_s='cp -pR' +fi +rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file +rmdir conf$$.dir 2>/dev/null + + +# as_fn_mkdir_p +# ------------- +# Create "$as_dir" as a directory, including parents if necessary. +as_fn_mkdir_p () +{ + + case $as_dir in #( + -*) as_dir=./$as_dir;; + esac + test -d "$as_dir" || eval $as_mkdir_p || { + as_dirs= + while :; do + case $as_dir in #( + *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'( + *) as_qdir=$as_dir;; + esac + as_dirs="'$as_qdir' $as_dirs" + as_dir=`$as_dirname -- "$as_dir" || +$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ + X"$as_dir" : 'X\(//\)[^/]' \| \ + X"$as_dir" : 'X\(//\)$' \| \ + X"$as_dir" : 'X\(/\)' \| . 2>/dev/null || +$as_echo X"$as_dir" | + sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ + s//\1/ + q + } + /^X\(\/\/\)[^/].*/{ + s//\1/ + q + } + /^X\(\/\/\)$/{ + s//\1/ + q + } + /^X\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + test -d "$as_dir" && break + done + test -z "$as_dirs" || eval "mkdir $as_dirs" + } || test -d "$as_dir" || as_fn_error $? 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"unrecognized option: \`$1' +Try \`$0 --help' for more information." ;; + + *) as_fn_append ac_config_targets " $1" + ac_need_defaults=false ;; + + esac + shift +done + +ac_configure_extra_args= + +if $ac_cs_silent; then + exec 6>/dev/null + ac_configure_extra_args="$ac_configure_extra_args --silent" +fi + +_ACEOF +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +if \$ac_cs_recheck; then + set X $SHELL '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion + shift + \$as_echo "running CONFIG_SHELL=$SHELL \$*" >&6 + CONFIG_SHELL='$SHELL' + export CONFIG_SHELL + exec "\$@" +fi + +_ACEOF +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +exec 5>>config.log +{ + echo + sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX +## Running $as_me. ## +_ASBOX + $as_echo "$ac_log" +} >&5 + +_ACEOF +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +# +# INIT-COMMANDS +# +AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}" + + +# The HP-UX ksh and POSIX shell print the target directory to stdout +# if CDPATH is set. +(unset CDPATH) >/dev/null 2>&1 && unset CDPATH + +sed_quote_subst='$sed_quote_subst' +double_quote_subst='$double_quote_subst' +delay_variable_subst='$delay_variable_subst' +macro_version='`$ECHO "$macro_version" | $SED "$delay_single_quote_subst"`' +macro_revision='`$ECHO "$macro_revision" | $SED "$delay_single_quote_subst"`' +enable_shared='`$ECHO "$enable_shared" | $SED "$delay_single_quote_subst"`' +enable_static='`$ECHO "$enable_static" | $SED "$delay_single_quote_subst"`' +pic_mode='`$ECHO "$pic_mode" | $SED "$delay_single_quote_subst"`' +enable_fast_install='`$ECHO "$enable_fast_install" | $SED "$delay_single_quote_subst"`' +shared_archive_member_spec='`$ECHO "$shared_archive_member_spec" | $SED "$delay_single_quote_subst"`' +SHELL='`$ECHO "$SHELL" | $SED "$delay_single_quote_subst"`' +ECHO='`$ECHO "$ECHO" | $SED "$delay_single_quote_subst"`' +PATH_SEPARATOR='`$ECHO "$PATH_SEPARATOR" | $SED "$delay_single_quote_subst"`' +host_alias='`$ECHO "$host_alias" | $SED "$delay_single_quote_subst"`' +host='`$ECHO "$host" | $SED "$delay_single_quote_subst"`' +host_os='`$ECHO "$host_os" | $SED "$delay_single_quote_subst"`' +build_alias='`$ECHO "$build_alias" | $SED "$delay_single_quote_subst"`' +build='`$ECHO "$build" | $SED "$delay_single_quote_subst"`' +build_os='`$ECHO "$build_os" | $SED "$delay_single_quote_subst"`' +SED='`$ECHO "$SED" | $SED "$delay_single_quote_subst"`' +Xsed='`$ECHO "$Xsed" | $SED "$delay_single_quote_subst"`' +GREP='`$ECHO "$GREP" | $SED "$delay_single_quote_subst"`' +EGREP='`$ECHO "$EGREP" | $SED "$delay_single_quote_subst"`' +FGREP='`$ECHO "$FGREP" | $SED "$delay_single_quote_subst"`' +LD='`$ECHO "$LD" | $SED "$delay_single_quote_subst"`' +NM='`$ECHO "$NM" | $SED "$delay_single_quote_subst"`' +LN_S='`$ECHO "$LN_S" | $SED "$delay_single_quote_subst"`' +max_cmd_len='`$ECHO "$max_cmd_len" | $SED "$delay_single_quote_subst"`' +ac_objext='`$ECHO "$ac_objext" | $SED "$delay_single_quote_subst"`' +exeext='`$ECHO "$exeext" | $SED "$delay_single_quote_subst"`' +lt_unset='`$ECHO "$lt_unset" | $SED "$delay_single_quote_subst"`' +lt_SP2NL='`$ECHO "$lt_SP2NL" | $SED "$delay_single_quote_subst"`' +lt_NL2SP='`$ECHO "$lt_NL2SP" | $SED "$delay_single_quote_subst"`' +lt_cv_to_host_file_cmd='`$ECHO "$lt_cv_to_host_file_cmd" | $SED "$delay_single_quote_subst"`' +lt_cv_to_tool_file_cmd='`$ECHO "$lt_cv_to_tool_file_cmd" | $SED "$delay_single_quote_subst"`' +reload_flag='`$ECHO "$reload_flag" | $SED "$delay_single_quote_subst"`' +reload_cmds='`$ECHO "$reload_cmds" | $SED "$delay_single_quote_subst"`' +OBJDUMP='`$ECHO "$OBJDUMP" | $SED "$delay_single_quote_subst"`' +deplibs_check_method='`$ECHO "$deplibs_check_method" | $SED "$delay_single_quote_subst"`' +file_magic_cmd='`$ECHO "$file_magic_cmd" | $SED "$delay_single_quote_subst"`' +file_magic_glob='`$ECHO "$file_magic_glob" | $SED "$delay_single_quote_subst"`' +want_nocaseglob='`$ECHO "$want_nocaseglob" | $SED "$delay_single_quote_subst"`' +DLLTOOL='`$ECHO "$DLLTOOL" | $SED "$delay_single_quote_subst"`' +sharedlib_from_linklib_cmd='`$ECHO "$sharedlib_from_linklib_cmd" | $SED "$delay_single_quote_subst"`' +AR='`$ECHO "$AR" | $SED "$delay_single_quote_subst"`' +AR_FLAGS='`$ECHO "$AR_FLAGS" | $SED "$delay_single_quote_subst"`' +archiver_list_spec='`$ECHO "$archiver_list_spec" | $SED "$delay_single_quote_subst"`' +STRIP='`$ECHO "$STRIP" | $SED "$delay_single_quote_subst"`' +RANLIB='`$ECHO "$RANLIB" | $SED "$delay_single_quote_subst"`' +old_postinstall_cmds='`$ECHO "$old_postinstall_cmds" | $SED "$delay_single_quote_subst"`' +old_postuninstall_cmds='`$ECHO "$old_postuninstall_cmds" | $SED "$delay_single_quote_subst"`' +old_archive_cmds='`$ECHO "$old_archive_cmds" | $SED "$delay_single_quote_subst"`' +lock_old_archive_extraction='`$ECHO "$lock_old_archive_extraction" | $SED "$delay_single_quote_subst"`' +CC='`$ECHO "$CC" | $SED "$delay_single_quote_subst"`' +CFLAGS='`$ECHO "$CFLAGS" | $SED "$delay_single_quote_subst"`' +compiler='`$ECHO "$compiler" | $SED "$delay_single_quote_subst"`' +GCC='`$ECHO "$GCC" | $SED "$delay_single_quote_subst"`' +lt_cv_sys_global_symbol_pipe='`$ECHO "$lt_cv_sys_global_symbol_pipe" | $SED "$delay_single_quote_subst"`' +lt_cv_sys_global_symbol_to_cdecl='`$ECHO "$lt_cv_sys_global_symbol_to_cdecl" | $SED "$delay_single_quote_subst"`' +lt_cv_sys_global_symbol_to_import='`$ECHO "$lt_cv_sys_global_symbol_to_import" | $SED "$delay_single_quote_subst"`' +lt_cv_sys_global_symbol_to_c_name_address='`$ECHO "$lt_cv_sys_global_symbol_to_c_name_address" | $SED "$delay_single_quote_subst"`' +lt_cv_sys_global_symbol_to_c_name_address_lib_prefix='`$ECHO "$lt_cv_sys_global_symbol_to_c_name_address_lib_prefix" | $SED "$delay_single_quote_subst"`' +lt_cv_nm_interface='`$ECHO "$lt_cv_nm_interface" | $SED "$delay_single_quote_subst"`' +nm_file_list_spec='`$ECHO "$nm_file_list_spec" | $SED "$delay_single_quote_subst"`' +lt_sysroot='`$ECHO "$lt_sysroot" | $SED "$delay_single_quote_subst"`' +lt_cv_truncate_bin='`$ECHO "$lt_cv_truncate_bin" | $SED "$delay_single_quote_subst"`' +objdir='`$ECHO "$objdir" | $SED "$delay_single_quote_subst"`' +MAGIC_CMD='`$ECHO "$MAGIC_CMD" | $SED "$delay_single_quote_subst"`' +lt_prog_compiler_no_builtin_flag='`$ECHO "$lt_prog_compiler_no_builtin_flag" | $SED "$delay_single_quote_subst"`' +lt_prog_compiler_pic='`$ECHO "$lt_prog_compiler_pic" | $SED "$delay_single_quote_subst"`' +lt_prog_compiler_wl='`$ECHO "$lt_prog_compiler_wl" | $SED "$delay_single_quote_subst"`' +lt_prog_compiler_static='`$ECHO "$lt_prog_compiler_static" | $SED "$delay_single_quote_subst"`' +lt_cv_prog_compiler_c_o='`$ECHO "$lt_cv_prog_compiler_c_o" | $SED "$delay_single_quote_subst"`' +need_locks='`$ECHO "$need_locks" | $SED "$delay_single_quote_subst"`' +MANIFEST_TOOL='`$ECHO "$MANIFEST_TOOL" | $SED "$delay_single_quote_subst"`' +DSYMUTIL='`$ECHO "$DSYMUTIL" | $SED "$delay_single_quote_subst"`' +NMEDIT='`$ECHO "$NMEDIT" | $SED "$delay_single_quote_subst"`' +LIPO='`$ECHO "$LIPO" | $SED "$delay_single_quote_subst"`' +OTOOL='`$ECHO "$OTOOL" | $SED "$delay_single_quote_subst"`' +OTOOL64='`$ECHO "$OTOOL64" | $SED "$delay_single_quote_subst"`' +libext='`$ECHO "$libext" | $SED "$delay_single_quote_subst"`' +shrext_cmds='`$ECHO "$shrext_cmds" | $SED "$delay_single_quote_subst"`' +extract_expsyms_cmds='`$ECHO "$extract_expsyms_cmds" | $SED "$delay_single_quote_subst"`' +archive_cmds_need_lc='`$ECHO "$archive_cmds_need_lc" | $SED "$delay_single_quote_subst"`' +enable_shared_with_static_runtimes='`$ECHO "$enable_shared_with_static_runtimes" | $SED "$delay_single_quote_subst"`' +export_dynamic_flag_spec='`$ECHO "$export_dynamic_flag_spec" | $SED "$delay_single_quote_subst"`' +whole_archive_flag_spec='`$ECHO "$whole_archive_flag_spec" | $SED "$delay_single_quote_subst"`' +compiler_needs_object='`$ECHO "$compiler_needs_object" | $SED "$delay_single_quote_subst"`' +old_archive_from_new_cmds='`$ECHO "$old_archive_from_new_cmds" | $SED "$delay_single_quote_subst"`' +old_archive_from_expsyms_cmds='`$ECHO "$old_archive_from_expsyms_cmds" | $SED "$delay_single_quote_subst"`' +archive_cmds='`$ECHO "$archive_cmds" | $SED "$delay_single_quote_subst"`' +archive_expsym_cmds='`$ECHO "$archive_expsym_cmds" | $SED "$delay_single_quote_subst"`' +module_cmds='`$ECHO "$module_cmds" | $SED "$delay_single_quote_subst"`' +module_expsym_cmds='`$ECHO "$module_expsym_cmds" | $SED "$delay_single_quote_subst"`' +with_gnu_ld='`$ECHO "$with_gnu_ld" | $SED "$delay_single_quote_subst"`' +allow_undefined_flag='`$ECHO "$allow_undefined_flag" | $SED "$delay_single_quote_subst"`' +no_undefined_flag='`$ECHO "$no_undefined_flag" | $SED "$delay_single_quote_subst"`' +hardcode_libdir_flag_spec='`$ECHO "$hardcode_libdir_flag_spec" | $SED "$delay_single_quote_subst"`' +hardcode_libdir_separator='`$ECHO "$hardcode_libdir_separator" | $SED "$delay_single_quote_subst"`' +hardcode_direct='`$ECHO "$hardcode_direct" | $SED "$delay_single_quote_subst"`' +hardcode_direct_absolute='`$ECHO "$hardcode_direct_absolute" | $SED "$delay_single_quote_subst"`' +hardcode_minus_L='`$ECHO "$hardcode_minus_L" | $SED "$delay_single_quote_subst"`' +hardcode_shlibpath_var='`$ECHO "$hardcode_shlibpath_var" | $SED "$delay_single_quote_subst"`' +hardcode_automatic='`$ECHO "$hardcode_automatic" | $SED "$delay_single_quote_subst"`' +inherit_rpath='`$ECHO "$inherit_rpath" | $SED "$delay_single_quote_subst"`' +link_all_deplibs='`$ECHO "$link_all_deplibs" | $SED "$delay_single_quote_subst"`' +always_export_symbols='`$ECHO "$always_export_symbols" | $SED "$delay_single_quote_subst"`' +export_symbols_cmds='`$ECHO "$export_symbols_cmds" | $SED "$delay_single_quote_subst"`' +exclude_expsyms='`$ECHO "$exclude_expsyms" | $SED "$delay_single_quote_subst"`' +include_expsyms='`$ECHO "$include_expsyms" | $SED "$delay_single_quote_subst"`' +prelink_cmds='`$ECHO "$prelink_cmds" | $SED "$delay_single_quote_subst"`' +postlink_cmds='`$ECHO "$postlink_cmds" | $SED "$delay_single_quote_subst"`' +file_list_spec='`$ECHO "$file_list_spec" | $SED "$delay_single_quote_subst"`' +variables_saved_for_relink='`$ECHO "$variables_saved_for_relink" | $SED "$delay_single_quote_subst"`' +need_lib_prefix='`$ECHO "$need_lib_prefix" | $SED "$delay_single_quote_subst"`' +need_version='`$ECHO "$need_version" | $SED "$delay_single_quote_subst"`' +version_type='`$ECHO "$version_type" | $SED "$delay_single_quote_subst"`' +runpath_var='`$ECHO "$runpath_var" | $SED "$delay_single_quote_subst"`' +shlibpath_var='`$ECHO "$shlibpath_var" | $SED "$delay_single_quote_subst"`' +shlibpath_overrides_runpath='`$ECHO "$shlibpath_overrides_runpath" | $SED "$delay_single_quote_subst"`' +libname_spec='`$ECHO "$libname_spec" | $SED "$delay_single_quote_subst"`' +library_names_spec='`$ECHO "$library_names_spec" | $SED "$delay_single_quote_subst"`' +soname_spec='`$ECHO "$soname_spec" | $SED "$delay_single_quote_subst"`' +install_override_mode='`$ECHO "$install_override_mode" | $SED "$delay_single_quote_subst"`' +postinstall_cmds='`$ECHO "$postinstall_cmds" | $SED "$delay_single_quote_subst"`' +postuninstall_cmds='`$ECHO "$postuninstall_cmds" | $SED "$delay_single_quote_subst"`' +finish_cmds='`$ECHO "$finish_cmds" | $SED "$delay_single_quote_subst"`' +finish_eval='`$ECHO "$finish_eval" | $SED "$delay_single_quote_subst"`' +hardcode_into_libs='`$ECHO "$hardcode_into_libs" | $SED "$delay_single_quote_subst"`' +sys_lib_search_path_spec='`$ECHO "$sys_lib_search_path_spec" | $SED "$delay_single_quote_subst"`' +configure_time_dlsearch_path='`$ECHO "$configure_time_dlsearch_path" | $SED "$delay_single_quote_subst"`' +configure_time_lt_sys_library_path='`$ECHO "$configure_time_lt_sys_library_path" | $SED "$delay_single_quote_subst"`' +hardcode_action='`$ECHO "$hardcode_action" | $SED "$delay_single_quote_subst"`' +enable_dlopen='`$ECHO "$enable_dlopen" | $SED "$delay_single_quote_subst"`' +enable_dlopen_self='`$ECHO "$enable_dlopen_self" | $SED "$delay_single_quote_subst"`' +enable_dlopen_self_static='`$ECHO "$enable_dlopen_self_static" | $SED "$delay_single_quote_subst"`' +old_striplib='`$ECHO "$old_striplib" | $SED "$delay_single_quote_subst"`' +striplib='`$ECHO "$striplib" | $SED "$delay_single_quote_subst"`' +compiler_lib_search_dirs='`$ECHO "$compiler_lib_search_dirs" | $SED "$delay_single_quote_subst"`' +predep_objects='`$ECHO "$predep_objects" | $SED "$delay_single_quote_subst"`' +postdep_objects='`$ECHO "$postdep_objects" | $SED "$delay_single_quote_subst"`' +predeps='`$ECHO "$predeps" | $SED "$delay_single_quote_subst"`' +postdeps='`$ECHO "$postdeps" | $SED "$delay_single_quote_subst"`' +compiler_lib_search_path='`$ECHO "$compiler_lib_search_path" | $SED "$delay_single_quote_subst"`' +LD_CXX='`$ECHO "$LD_CXX" | $SED "$delay_single_quote_subst"`' +reload_flag_CXX='`$ECHO "$reload_flag_CXX" | $SED "$delay_single_quote_subst"`' +reload_cmds_CXX='`$ECHO "$reload_cmds_CXX" | $SED "$delay_single_quote_subst"`' +old_archive_cmds_CXX='`$ECHO "$old_archive_cmds_CXX" | $SED "$delay_single_quote_subst"`' +compiler_CXX='`$ECHO "$compiler_CXX" | $SED "$delay_single_quote_subst"`' +GCC_CXX='`$ECHO "$GCC_CXX" | $SED "$delay_single_quote_subst"`' +lt_prog_compiler_no_builtin_flag_CXX='`$ECHO "$lt_prog_compiler_no_builtin_flag_CXX" | $SED "$delay_single_quote_subst"`' +lt_prog_compiler_pic_CXX='`$ECHO "$lt_prog_compiler_pic_CXX" | $SED "$delay_single_quote_subst"`' +lt_prog_compiler_wl_CXX='`$ECHO "$lt_prog_compiler_wl_CXX" | $SED "$delay_single_quote_subst"`' +lt_prog_compiler_static_CXX='`$ECHO "$lt_prog_compiler_static_CXX" | $SED "$delay_single_quote_subst"`' +lt_cv_prog_compiler_c_o_CXX='`$ECHO "$lt_cv_prog_compiler_c_o_CXX" | $SED "$delay_single_quote_subst"`' +archive_cmds_need_lc_CXX='`$ECHO "$archive_cmds_need_lc_CXX" | $SED "$delay_single_quote_subst"`' +enable_shared_with_static_runtimes_CXX='`$ECHO "$enable_shared_with_static_runtimes_CXX" | $SED "$delay_single_quote_subst"`' +export_dynamic_flag_spec_CXX='`$ECHO "$export_dynamic_flag_spec_CXX" | $SED "$delay_single_quote_subst"`' +whole_archive_flag_spec_CXX='`$ECHO "$whole_archive_flag_spec_CXX" | $SED "$delay_single_quote_subst"`' +compiler_needs_object_CXX='`$ECHO "$compiler_needs_object_CXX" | $SED "$delay_single_quote_subst"`' +old_archive_from_new_cmds_CXX='`$ECHO "$old_archive_from_new_cmds_CXX" | $SED "$delay_single_quote_subst"`' +old_archive_from_expsyms_cmds_CXX='`$ECHO "$old_archive_from_expsyms_cmds_CXX" | $SED "$delay_single_quote_subst"`' +archive_cmds_CXX='`$ECHO "$archive_cmds_CXX" | $SED "$delay_single_quote_subst"`' +archive_expsym_cmds_CXX='`$ECHO "$archive_expsym_cmds_CXX" | $SED "$delay_single_quote_subst"`' +module_cmds_CXX='`$ECHO "$module_cmds_CXX" | $SED "$delay_single_quote_subst"`' +module_expsym_cmds_CXX='`$ECHO "$module_expsym_cmds_CXX" | $SED "$delay_single_quote_subst"`' +with_gnu_ld_CXX='`$ECHO "$with_gnu_ld_CXX" | $SED "$delay_single_quote_subst"`' +allow_undefined_flag_CXX='`$ECHO "$allow_undefined_flag_CXX" | $SED "$delay_single_quote_subst"`' +no_undefined_flag_CXX='`$ECHO "$no_undefined_flag_CXX" | $SED "$delay_single_quote_subst"`' +hardcode_libdir_flag_spec_CXX='`$ECHO "$hardcode_libdir_flag_spec_CXX" | $SED "$delay_single_quote_subst"`' +hardcode_libdir_separator_CXX='`$ECHO "$hardcode_libdir_separator_CXX" | $SED "$delay_single_quote_subst"`' +hardcode_direct_CXX='`$ECHO "$hardcode_direct_CXX" | $SED "$delay_single_quote_subst"`' +hardcode_direct_absolute_CXX='`$ECHO "$hardcode_direct_absolute_CXX" | $SED "$delay_single_quote_subst"`' +hardcode_minus_L_CXX='`$ECHO "$hardcode_minus_L_CXX" | $SED "$delay_single_quote_subst"`' +hardcode_shlibpath_var_CXX='`$ECHO "$hardcode_shlibpath_var_CXX" | $SED "$delay_single_quote_subst"`' +hardcode_automatic_CXX='`$ECHO "$hardcode_automatic_CXX" | $SED "$delay_single_quote_subst"`' +inherit_rpath_CXX='`$ECHO "$inherit_rpath_CXX" | $SED "$delay_single_quote_subst"`' +link_all_deplibs_CXX='`$ECHO "$link_all_deplibs_CXX" | $SED "$delay_single_quote_subst"`' +always_export_symbols_CXX='`$ECHO "$always_export_symbols_CXX" | $SED "$delay_single_quote_subst"`' +export_symbols_cmds_CXX='`$ECHO "$export_symbols_cmds_CXX" | $SED "$delay_single_quote_subst"`' +exclude_expsyms_CXX='`$ECHO "$exclude_expsyms_CXX" | $SED "$delay_single_quote_subst"`' +include_expsyms_CXX='`$ECHO "$include_expsyms_CXX" | $SED "$delay_single_quote_subst"`' +prelink_cmds_CXX='`$ECHO "$prelink_cmds_CXX" | $SED "$delay_single_quote_subst"`' +postlink_cmds_CXX='`$ECHO "$postlink_cmds_CXX" | $SED "$delay_single_quote_subst"`' +file_list_spec_CXX='`$ECHO "$file_list_spec_CXX" | $SED "$delay_single_quote_subst"`' +hardcode_action_CXX='`$ECHO "$hardcode_action_CXX" | $SED "$delay_single_quote_subst"`' +compiler_lib_search_dirs_CXX='`$ECHO "$compiler_lib_search_dirs_CXX" | $SED "$delay_single_quote_subst"`' +predep_objects_CXX='`$ECHO "$predep_objects_CXX" | $SED "$delay_single_quote_subst"`' +postdep_objects_CXX='`$ECHO "$postdep_objects_CXX" | $SED "$delay_single_quote_subst"`' +predeps_CXX='`$ECHO "$predeps_CXX" | $SED "$delay_single_quote_subst"`' +postdeps_CXX='`$ECHO "$postdeps_CXX" | $SED "$delay_single_quote_subst"`' +compiler_lib_search_path_CXX='`$ECHO "$compiler_lib_search_path_CXX" | $SED "$delay_single_quote_subst"`' + +LTCC='$LTCC' +LTCFLAGS='$LTCFLAGS' +compiler='$compiler_DEFAULT' + +# A function that is used when there is no print builtin or printf. +func_fallback_echo () +{ + eval 'cat <<_LTECHO_EOF +\$1 +_LTECHO_EOF' +} + +# Quote evaled strings. +for var in SHELL \ +ECHO \ +PATH_SEPARATOR \ +SED \ +GREP \ +EGREP \ +FGREP \ +LD \ +NM \ +LN_S \ +lt_SP2NL \ +lt_NL2SP \ +reload_flag \ +OBJDUMP \ +deplibs_check_method \ +file_magic_cmd \ +file_magic_glob \ +want_nocaseglob \ +DLLTOOL \ +sharedlib_from_linklib_cmd \ +AR \ +AR_FLAGS \ +archiver_list_spec \ +STRIP \ +RANLIB \ +CC \ +CFLAGS \ +compiler \ +lt_cv_sys_global_symbol_pipe \ +lt_cv_sys_global_symbol_to_cdecl \ +lt_cv_sys_global_symbol_to_import \ +lt_cv_sys_global_symbol_to_c_name_address \ +lt_cv_sys_global_symbol_to_c_name_address_lib_prefix \ +lt_cv_nm_interface \ +nm_file_list_spec \ +lt_cv_truncate_bin \ +lt_prog_compiler_no_builtin_flag \ +lt_prog_compiler_pic \ +lt_prog_compiler_wl \ +lt_prog_compiler_static \ +lt_cv_prog_compiler_c_o \ +need_locks \ +MANIFEST_TOOL \ +DSYMUTIL \ +NMEDIT \ +LIPO \ +OTOOL \ +OTOOL64 \ +shrext_cmds \ +export_dynamic_flag_spec \ +whole_archive_flag_spec \ +compiler_needs_object \ +with_gnu_ld \ +allow_undefined_flag \ +no_undefined_flag \ +hardcode_libdir_flag_spec \ +hardcode_libdir_separator \ +exclude_expsyms \ +include_expsyms \ +file_list_spec \ +variables_saved_for_relink \ +libname_spec \ +library_names_spec \ +soname_spec \ +install_override_mode \ +finish_eval \ +old_striplib \ +striplib \ +compiler_lib_search_dirs \ +predep_objects \ +postdep_objects \ +predeps \ +postdeps \ +compiler_lib_search_path \ +LD_CXX \ +reload_flag_CXX \ +compiler_CXX \ +lt_prog_compiler_no_builtin_flag_CXX \ +lt_prog_compiler_pic_CXX \ +lt_prog_compiler_wl_CXX \ +lt_prog_compiler_static_CXX \ +lt_cv_prog_compiler_c_o_CXX \ +export_dynamic_flag_spec_CXX \ +whole_archive_flag_spec_CXX \ +compiler_needs_object_CXX \ +with_gnu_ld_CXX \ +allow_undefined_flag_CXX \ +no_undefined_flag_CXX \ +hardcode_libdir_flag_spec_CXX \ +hardcode_libdir_separator_CXX \ +exclude_expsyms_CXX \ +include_expsyms_CXX \ +file_list_spec_CXX \ +compiler_lib_search_dirs_CXX \ +predep_objects_CXX \ +postdep_objects_CXX \ +predeps_CXX \ +postdeps_CXX \ +compiler_lib_search_path_CXX; do + case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in + *[\\\\\\\`\\"\\\$]*) + eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED \\"\\\$sed_quote_subst\\"\\\`\\\\\\"" ## exclude from sc_prohibit_nested_quotes + ;; + *) + eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\"" + ;; + esac +done + +# Double-quote double-evaled strings. +for var in reload_cmds \ +old_postinstall_cmds \ +old_postuninstall_cmds \ +old_archive_cmds \ +extract_expsyms_cmds \ +old_archive_from_new_cmds \ +old_archive_from_expsyms_cmds \ +archive_cmds \ +archive_expsym_cmds \ +module_cmds \ +module_expsym_cmds \ +export_symbols_cmds \ +prelink_cmds \ +postlink_cmds \ +postinstall_cmds \ +postuninstall_cmds \ +finish_cmds \ +sys_lib_search_path_spec \ +configure_time_dlsearch_path \ +configure_time_lt_sys_library_path \ +reload_cmds_CXX \ +old_archive_cmds_CXX \ +old_archive_from_new_cmds_CXX \ +old_archive_from_expsyms_cmds_CXX \ +archive_cmds_CXX \ +archive_expsym_cmds_CXX \ +module_cmds_CXX \ +module_expsym_cmds_CXX \ +export_symbols_cmds_CXX \ +prelink_cmds_CXX \ +postlink_cmds_CXX; do + case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in + *[\\\\\\\`\\"\\\$]*) + eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED -e \\"\\\$double_quote_subst\\" -e \\"\\\$sed_quote_subst\\" -e \\"\\\$delay_variable_subst\\"\\\`\\\\\\"" ## exclude from sc_prohibit_nested_quotes + ;; + *) + eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\"" + ;; + esac +done + +ac_aux_dir='$ac_aux_dir' + +# See if we are running on zsh, and set the options that allow our +# commands through without removal of \ escapes INIT. +if test -n "\${ZSH_VERSION+set}"; then + setopt NO_GLOB_SUBST +fi + + + PACKAGE='$PACKAGE' + VERSION='$VERSION' + RM='$RM' + ofile='$ofile' + + + + + + +_ACEOF + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 + +# Handling of arguments. +for ac_config_target in $ac_config_targets +do + case $ac_config_target in + "depfiles") CONFIG_COMMANDS="$CONFIG_COMMANDS depfiles" ;; + "libtool") CONFIG_COMMANDS="$CONFIG_COMMANDS libtool" ;; + "config.h") CONFIG_HEADERS="$CONFIG_HEADERS config.h" ;; + "podwrapper.pl") CONFIG_FILES="$CONFIG_FILES podwrapper.pl" ;; + "common/protocol/generate-protostrings.sh") CONFIG_FILES="$CONFIG_FILES common/protocol/generate-protostrings.sh" ;; + "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;; + "bash/Makefile") CONFIG_FILES="$CONFIG_FILES bash/Makefile" ;; + "common/allocators/Makefile") CONFIG_FILES="$CONFIG_FILES common/allocators/Makefile" ;; + "common/bitmap/Makefile") CONFIG_FILES="$CONFIG_FILES common/bitmap/Makefile" ;; + "common/gpt/Makefile") CONFIG_FILES="$CONFIG_FILES common/gpt/Makefile" ;; + "common/include/Makefile") CONFIG_FILES="$CONFIG_FILES common/include/Makefile" ;; + "common/protocol/Makefile") CONFIG_FILES="$CONFIG_FILES common/protocol/Makefile" ;; + "common/regions/Makefile") CONFIG_FILES="$CONFIG_FILES common/regions/Makefile" ;; + "common/utils/Makefile") CONFIG_FILES="$CONFIG_FILES common/utils/Makefile" ;; + "docs/Makefile") CONFIG_FILES="$CONFIG_FILES docs/Makefile" ;; + "include/Makefile") CONFIG_FILES="$CONFIG_FILES include/Makefile" ;; + "include/nbdkit-version.h") CONFIG_FILES="$CONFIG_FILES include/nbdkit-version.h" ;; + "plugins/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/Makefile" ;; + "plugins/cc/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/cc/Makefile" ;; + "plugins/cdi/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/cdi/Makefile" ;; + "plugins/curl/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/curl/Makefile" ;; + "plugins/data/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/data/Makefile" ;; + "plugins/eval/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/eval/Makefile" ;; + "plugins/example1/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/example1/Makefile" ;; + "plugins/example2/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/example2/Makefile" ;; + "plugins/example3/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/example3/Makefile" ;; + "plugins/example4/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/example4/Makefile" ;; + "plugins/file/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/file/Makefile" ;; + "plugins/floppy/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/floppy/Makefile" ;; + "plugins/full/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/full/Makefile" ;; + "plugins/golang/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/golang/Makefile" ;; + "plugins/guestfs/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/guestfs/Makefile" ;; + "plugins/gzip/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/gzip/Makefile" ;; + "plugins/info/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/info/Makefile" ;; + "plugins/iso/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/iso/Makefile" ;; + "plugins/libvirt/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/libvirt/Makefile" ;; + "plugins/linuxdisk/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/linuxdisk/Makefile" ;; + "plugins/lua/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/lua/Makefile" ;; + "plugins/memory/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/memory/Makefile" ;; + "plugins/nbd/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/nbd/Makefile" ;; + "plugins/null/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/null/Makefile" ;; + "plugins/ocaml/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/ocaml/Makefile" ;; + "plugins/ondemand/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/ondemand/Makefile" ;; + "plugins/partitioning/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/partitioning/Makefile" ;; + "plugins/pattern/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/pattern/Makefile" ;; + "plugins/perl/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/perl/Makefile" ;; + "plugins/python/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/python/Makefile" ;; + "plugins/random/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/random/Makefile" ;; + "plugins/ruby/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/ruby/Makefile" ;; + "plugins/rust/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/rust/Makefile" ;; + "plugins/sh/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/sh/Makefile" ;; + "plugins/ssh/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/ssh/Makefile" ;; + "plugins/split/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/split/Makefile" ;; + "plugins/streaming/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/streaming/Makefile" ;; + "plugins/tar/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/tar/Makefile" ;; + "plugins/tcl/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/tcl/Makefile" ;; + "plugins/tmpdisk/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/tmpdisk/Makefile" ;; + "plugins/torrent/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/torrent/Makefile" ;; + "plugins/vddk/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/vddk/Makefile" ;; + "plugins/zero/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/zero/Makefile" ;; + "filters/Makefile") CONFIG_FILES="$CONFIG_FILES filters/Makefile" ;; + "filters/blocksize/Makefile") CONFIG_FILES="$CONFIG_FILES filters/blocksize/Makefile" ;; + "filters/cache/Makefile") CONFIG_FILES="$CONFIG_FILES filters/cache/Makefile" ;; + "filters/cacheextents/Makefile") CONFIG_FILES="$CONFIG_FILES filters/cacheextents/Makefile" ;; + "filters/cow/Makefile") CONFIG_FILES="$CONFIG_FILES filters/cow/Makefile" ;; + "filters/ddrescue/Makefile") CONFIG_FILES="$CONFIG_FILES filters/ddrescue/Makefile" ;; + "filters/delay/Makefile") CONFIG_FILES="$CONFIG_FILES filters/delay/Makefile" ;; + "filters/error/Makefile") CONFIG_FILES="$CONFIG_FILES filters/error/Makefile" ;; + "filters/exitlast/Makefile") CONFIG_FILES="$CONFIG_FILES filters/exitlast/Makefile" ;; + "filters/ext2/Makefile") CONFIG_FILES="$CONFIG_FILES filters/ext2/Makefile" ;; + "filters/extentlist/Makefile") CONFIG_FILES="$CONFIG_FILES filters/extentlist/Makefile" ;; + "filters/fua/Makefile") CONFIG_FILES="$CONFIG_FILES filters/fua/Makefile" ;; + "filters/gzip/Makefile") CONFIG_FILES="$CONFIG_FILES filters/gzip/Makefile" ;; + "filters/ip/Makefile") CONFIG_FILES="$CONFIG_FILES filters/ip/Makefile" ;; + "filters/limit/Makefile") CONFIG_FILES="$CONFIG_FILES filters/limit/Makefile" ;; + "filters/log/Makefile") CONFIG_FILES="$CONFIG_FILES filters/log/Makefile" ;; + "filters/nocache/Makefile") CONFIG_FILES="$CONFIG_FILES filters/nocache/Makefile" ;; + "filters/noextents/Makefile") CONFIG_FILES="$CONFIG_FILES filters/noextents/Makefile" ;; + "filters/nofilter/Makefile") CONFIG_FILES="$CONFIG_FILES filters/nofilter/Makefile" ;; + "filters/noparallel/Makefile") CONFIG_FILES="$CONFIG_FILES filters/noparallel/Makefile" ;; + "filters/nozero/Makefile") CONFIG_FILES="$CONFIG_FILES filters/nozero/Makefile" ;; + "filters/offset/Makefile") CONFIG_FILES="$CONFIG_FILES filters/offset/Makefile" ;; + "filters/partition/Makefile") CONFIG_FILES="$CONFIG_FILES filters/partition/Makefile" ;; + "filters/pause/Makefile") CONFIG_FILES="$CONFIG_FILES filters/pause/Makefile" ;; + "filters/rate/Makefile") CONFIG_FILES="$CONFIG_FILES filters/rate/Makefile" ;; + "filters/readahead/Makefile") CONFIG_FILES="$CONFIG_FILES filters/readahead/Makefile" ;; + "filters/retry/Makefile") CONFIG_FILES="$CONFIG_FILES filters/retry/Makefile" ;; + "filters/stats/Makefile") CONFIG_FILES="$CONFIG_FILES filters/stats/Makefile" ;; + "filters/swab/Makefile") CONFIG_FILES="$CONFIG_FILES filters/swab/Makefile" ;; + "filters/tar/Makefile") CONFIG_FILES="$CONFIG_FILES filters/tar/Makefile" ;; + "filters/tls-fallback/Makefile") CONFIG_FILES="$CONFIG_FILES filters/tls-fallback/Makefile" ;; + "filters/truncate/Makefile") CONFIG_FILES="$CONFIG_FILES filters/truncate/Makefile" ;; + "filters/xz/Makefile") CONFIG_FILES="$CONFIG_FILES filters/xz/Makefile" ;; + "fuzzing/Makefile") CONFIG_FILES="$CONFIG_FILES fuzzing/Makefile" ;; + "server/local/nbdkit.pc") CONFIG_FILES="$CONFIG_FILES server/local/nbdkit.pc" ;; + "server/Makefile") CONFIG_FILES="$CONFIG_FILES server/Makefile" ;; + "server/nbdkit.pc") CONFIG_FILES="$CONFIG_FILES server/nbdkit.pc" ;; + "tests/functions.sh") CONFIG_FILES="$CONFIG_FILES tests/functions.sh" ;; + "tests/Makefile") CONFIG_FILES="$CONFIG_FILES tests/Makefile" ;; + "valgrind/Makefile") CONFIG_FILES="$CONFIG_FILES valgrind/Makefile" ;; + + *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;; + esac +done + + +# If the user did not use the arguments to specify the items to instantiate, +# then the envvar interface is used. Set only those that are not. +# We use the long form for the default assignment because of an extremely +# bizarre bug on SunOS 4.1.3. +if $ac_need_defaults; then + test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files + test "${CONFIG_HEADERS+set}" = set || CONFIG_HEADERS=$config_headers + test "${CONFIG_COMMANDS+set}" = set || CONFIG_COMMANDS=$config_commands +fi + +# Have a temporary directory for convenience. Make it in the build tree +# simply because there is no reason against having it here, and in addition, +# creating and moving files from /tmp can sometimes cause problems. +# Hook for its removal unless debugging. +# Note that there is a small window in which the directory will not be cleaned: +# after its creation but before its name has been assigned to `$tmp'. +$debug || +{ + tmp= ac_tmp= + trap 'exit_status=$? + : "${ac_tmp:=$tmp}" + { test ! -d "$ac_tmp" || rm -fr "$ac_tmp"; } && exit $exit_status +' 0 + trap 'as_fn_exit 1' 1 2 13 15 +} +# Create a (secure) tmp directory for tmp files. + +{ + tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` && + test -d "$tmp" +} || +{ + tmp=./conf$$-$RANDOM + (umask 077 && mkdir "$tmp") +} || as_fn_error $? "cannot create a temporary directory in ." "$LINENO" 5 +ac_tmp=$tmp + +# Set up the scripts for CONFIG_FILES section. +# No need to generate them if there are no CONFIG_FILES. +# This happens for instance with `./config.status config.h'. +if test -n "$CONFIG_FILES"; then + + +ac_cr=`echo X | tr X '\015'` +# On cygwin, bash can eat \r inside `` if the user requested igncr. +# But we know of no other shell where ac_cr would be empty at this +# point, so we can use a bashism as a fallback. +if test "x$ac_cr" = x; then + eval ac_cr=\$\'\\r\' +fi +ac_cs_awk_cr=`$AWK 'BEGIN { print "a\rb" }' /dev/null` +if test "$ac_cs_awk_cr" = "a${ac_cr}b"; then + ac_cs_awk_cr='\\r' +else + ac_cs_awk_cr=$ac_cr +fi + +echo 'BEGIN {' >"$ac_tmp/subs1.awk" && +_ACEOF + + +{ + echo "cat >conf$$subs.awk <<_ACEOF" && + echo "$ac_subst_vars" | sed 's/.*/&!$&$ac_delim/' && + echo "_ACEOF" +} >conf$$subs.sh || + as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5 +ac_delim_num=`echo "$ac_subst_vars" | grep -c '^'` +ac_delim='%!_!# ' +for ac_last_try in false false false false false :; do + . ./conf$$subs.sh || + as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5 + + ac_delim_n=`sed -n "s/.*$ac_delim\$/X/p" conf$$subs.awk | grep -c X` + if test $ac_delim_n = $ac_delim_num; then + break + elif $ac_last_try; then + as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5 + else + ac_delim="$ac_delim!$ac_delim _$ac_delim!! " + fi +done +rm -f conf$$subs.sh + +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +cat >>"\$ac_tmp/subs1.awk" <<\\_ACAWK && +_ACEOF +sed -n ' +h +s/^/S["/; s/!.*/"]=/ +p +g +s/^[^!]*!// +:repl +t repl +s/'"$ac_delim"'$// +t delim +:nl +h +s/\(.\{148\}\)..*/\1/ +t more1 +s/["\\]/\\&/g; s/^/"/; s/$/\\n"\\/ +p +n +b repl +:more1 +s/["\\]/\\&/g; s/^/"/; s/$/"\\/ +p +g +s/.\{148\}// +t nl +:delim +h +s/\(.\{148\}\)..*/\1/ +t more2 +s/["\\]/\\&/g; s/^/"/; s/$/"/ +p +b +:more2 +s/["\\]/\\&/g; s/^/"/; s/$/"\\/ +p +g +s/.\{148\}// +t delim +' >$CONFIG_STATUS || ac_write_fail=1 +rm -f conf$$subs.awk +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +_ACAWK +cat >>"\$ac_tmp/subs1.awk" <<_ACAWK && + for (key in S) S_is_set[key] = 1 + FS = "" + +} +{ + line = $ 0 + nfields = split(line, field, "@") + substed = 0 + len = length(field[1]) + for (i = 2; i < nfields; i++) { + key = field[i] + keylen = length(key) + if (S_is_set[key]) { + value = S[key] + line = substr(line, 1, len) "" value "" substr(line, len + keylen + 3) + len += length(value) + length(field[++i]) + substed = 1 + } else + len += 1 + keylen + } + + print line +} + +_ACAWK +_ACEOF +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +if sed "s/$ac_cr//" < /dev/null > /dev/null 2>&1; then + sed "s/$ac_cr\$//; s/$ac_cr/$ac_cs_awk_cr/g" +else + cat +fi < "$ac_tmp/subs1.awk" > "$ac_tmp/subs.awk" \ + || as_fn_error $? "could not setup config files machinery" "$LINENO" 5 +_ACEOF + +# VPATH may cause trouble with some makes, so we remove sole $(srcdir), +# ${srcdir} and @srcdir@ entries from VPATH if srcdir is ".", strip leading and +# trailing colons and then remove the whole line if VPATH becomes empty +# (actually we leave an empty line to preserve line numbers). +if test "x$srcdir" = x.; then + ac_vpsub='/^[ ]*VPATH[ ]*=[ ]*/{ +h +s/// +s/^/:/ +s/[ ]*$/:/ +s/:\$(srcdir):/:/g +s/:\${srcdir}:/:/g +s/:@srcdir@:/:/g +s/^:*// +s/:*$// +x +s/\(=[ ]*\).*/\1/ +G +s/\n// +s/^[^=]*=[ ]*$// +}' +fi + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +fi # test -n "$CONFIG_FILES" + +# Set up the scripts for CONFIG_HEADERS section. +# No need to generate them if there are no CONFIG_HEADERS. +# This happens for instance with `./config.status Makefile'. +if test -n "$CONFIG_HEADERS"; then +cat >"$ac_tmp/defines.awk" <<\_ACAWK || +BEGIN { +_ACEOF + +# Transform confdefs.h into an awk script `defines.awk', embedded as +# here-document in config.status, that substitutes the proper values into +# config.h.in to produce config.h. + +# Create a delimiter string that does not exist in confdefs.h, to ease +# handling of long lines. +ac_delim='%!_!# ' +for ac_last_try in false false :; do + ac_tt=`sed -n "/$ac_delim/p" confdefs.h` + if test -z "$ac_tt"; then + break + elif $ac_last_try; then + as_fn_error $? "could not make $CONFIG_HEADERS" "$LINENO" 5 + else + ac_delim="$ac_delim!$ac_delim _$ac_delim!! " + fi +done + +# For the awk script, D is an array of macro values keyed by name, +# likewise P contains macro parameters if any. Preserve backslash +# newline sequences. + +ac_word_re=[_$as_cr_Letters][_$as_cr_alnum]* +sed -n ' +s/.\{148\}/&'"$ac_delim"'/g +t rset +:rset +s/^[ ]*#[ ]*define[ ][ ]*/ / +t def +d +:def +s/\\$// +t bsnl +s/["\\]/\\&/g +s/^ \('"$ac_word_re"'\)\(([^()]*)\)[ ]*\(.*\)/P["\1"]="\2"\ +D["\1"]=" \3"/p +s/^ \('"$ac_word_re"'\)[ ]*\(.*\)/D["\1"]=" \2"/p +d +:bsnl +s/["\\]/\\&/g +s/^ \('"$ac_word_re"'\)\(([^()]*)\)[ ]*\(.*\)/P["\1"]="\2"\ +D["\1"]=" \3\\\\\\n"\\/p +t cont +s/^ \('"$ac_word_re"'\)[ ]*\(.*\)/D["\1"]=" \2\\\\\\n"\\/p +t cont +d +:cont +n +s/.\{148\}/&'"$ac_delim"'/g +t clear +:clear +s/\\$// +t bsnlc +s/["\\]/\\&/g; s/^/"/; s/$/"/p +d +:bsnlc +s/["\\]/\\&/g; s/^/"/; s/$/\\\\\\n"\\/p +b cont +' >$CONFIG_STATUS || ac_write_fail=1 + +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 + for (key in D) D_is_set[key] = 1 + FS = "" +} +/^[\t ]*#[\t ]*(define|undef)[\t ]+$ac_word_re([\t (]|\$)/ { + line = \$ 0 + split(line, arg, " ") + if (arg[1] == "#") { + defundef = arg[2] + mac1 = arg[3] + } else { + defundef = substr(arg[1], 2) + mac1 = arg[2] + } + split(mac1, mac2, "(") #) + macro = mac2[1] + prefix = substr(line, 1, index(line, defundef) - 1) + if (D_is_set[macro]) { + # Preserve the white space surrounding the "#". + print prefix "define", macro P[macro] D[macro] + next + } else { + # Replace #undef with comments. This is necessary, for example, + # in the case of _POSIX_SOURCE, which is predefined and required + # on some systems where configure will not decide to define it. + if (defundef == "undef") { + print "/*", prefix defundef, macro, "*/" + next + } + } +} +{ print } +_ACAWK +_ACEOF +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 + as_fn_error $? "could not setup config headers machinery" "$LINENO" 5 +fi # test -n "$CONFIG_HEADERS" + + +eval set X " :F $CONFIG_FILES :H $CONFIG_HEADERS :C $CONFIG_COMMANDS" +shift +for ac_tag +do + case $ac_tag in + :[FHLC]) ac_mode=$ac_tag; continue;; + esac + case $ac_mode$ac_tag in + :[FHL]*:*);; + :L* | :C*:*) as_fn_error $? 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+no_builtin_flag=$lt_lt_prog_compiler_no_builtin_flag + +# Additional compiler flags for building library objects. +pic_flag=$lt_lt_prog_compiler_pic + +# How to pass a linker flag through the compiler. +wl=$lt_lt_prog_compiler_wl + +# Compiler flag to prevent dynamic linking. +link_static_flag=$lt_lt_prog_compiler_static + +# Does compiler simultaneously support -c and -o options? +compiler_c_o=$lt_lt_cv_prog_compiler_c_o + +# Whether or not to add -lc for building shared libraries. +build_libtool_need_lc=$archive_cmds_need_lc + +# Whether or not to disallow shared libs when runtime libs are static. +allow_libtool_libs_with_static_runtimes=$enable_shared_with_static_runtimes + +# Compiler flag to allow reflexive dlopens. +export_dynamic_flag_spec=$lt_export_dynamic_flag_spec + +# Compiler flag to generate shared objects directly from archives. +whole_archive_flag_spec=$lt_whole_archive_flag_spec + +# Whether the compiler copes with passing no objects directly. +compiler_needs_object=$lt_compiler_needs_object + +# Create an old-style archive from a shared archive. +old_archive_from_new_cmds=$lt_old_archive_from_new_cmds + +# Create a temporary old-style archive to link instead of a shared archive. +old_archive_from_expsyms_cmds=$lt_old_archive_from_expsyms_cmds + +# Commands used to build a shared archive. +archive_cmds=$lt_archive_cmds +archive_expsym_cmds=$lt_archive_expsym_cmds + +# Commands used to build a loadable module if different from building +# a shared archive. +module_cmds=$lt_module_cmds +module_expsym_cmds=$lt_module_expsym_cmds + +# Whether we are building with GNU ld or not. +with_gnu_ld=$lt_with_gnu_ld + +# Flag that allows shared libraries with undefined symbols to be built. +allow_undefined_flag=$lt_allow_undefined_flag + +# Flag that enforces no undefined symbols. +no_undefined_flag=$lt_no_undefined_flag + +# Flag to hardcode \$libdir into a binary during linking. +# This must work even if \$libdir does not exist +hardcode_libdir_flag_spec=$lt_hardcode_libdir_flag_spec + +# Whether we need a single "-rpath" flag with a separated argument. +hardcode_libdir_separator=$lt_hardcode_libdir_separator + +# Set to "yes" if using DIR/libNAME\$shared_ext during linking hardcodes +# DIR into the resulting binary. +hardcode_direct=$hardcode_direct + +# Set to "yes" if using DIR/libNAME\$shared_ext during linking hardcodes +# DIR into the resulting binary and the resulting library dependency is +# "absolute",i.e impossible to change by setting \$shlibpath_var if the +# library is relocated. +hardcode_direct_absolute=$hardcode_direct_absolute + +# Set to "yes" if using the -LDIR flag during linking hardcodes DIR +# into the resulting binary. +hardcode_minus_L=$hardcode_minus_L + +# Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR +# into the resulting binary. +hardcode_shlibpath_var=$hardcode_shlibpath_var + +# Set to "yes" if building a shared library automatically hardcodes DIR +# into the library and all subsequent libraries and executables linked +# against it. +hardcode_automatic=$hardcode_automatic + +# Set to yes if linker adds runtime paths of dependent libraries +# to runtime path list. +inherit_rpath=$inherit_rpath + +# Whether libtool must link a program against all its dependency libraries. +link_all_deplibs=$link_all_deplibs + +# Set to "yes" if exported symbols are required. +always_export_symbols=$always_export_symbols + +# The commands to list exported symbols. +export_symbols_cmds=$lt_export_symbols_cmds + +# Symbols that should not be listed in the preloaded symbols. +exclude_expsyms=$lt_exclude_expsyms + +# Symbols that must always be exported. +include_expsyms=$lt_include_expsyms + +# Commands necessary for linking programs (against libraries) with templates. +prelink_cmds=$lt_prelink_cmds + +# Commands necessary for finishing linking programs. +postlink_cmds=$lt_postlink_cmds + +# Specify filename containing input files. +file_list_spec=$lt_file_list_spec + +# How to hardcode a shared library path into an executable. +hardcode_action=$hardcode_action + +# The directories searched by this compiler when creating a shared library. +compiler_lib_search_dirs=$lt_compiler_lib_search_dirs + +# Dependencies to place before and after the objects being linked to +# create a shared library. +predep_objects=$lt_predep_objects +postdep_objects=$lt_postdep_objects +predeps=$lt_predeps +postdeps=$lt_postdeps + +# The library search path used internally by the compiler when linking +# a shared library. +compiler_lib_search_path=$lt_compiler_lib_search_path + +# ### END LIBTOOL CONFIG + +_LT_EOF + + cat <<'_LT_EOF' >> "$cfgfile" + +# ### BEGIN FUNCTIONS SHARED WITH CONFIGURE + +# func_munge_path_list VARIABLE PATH +# ----------------------------------- +# VARIABLE is name of variable containing _space_ separated list of +# directories to be munged by the contents of PATH, which is string +# having a format: +# "DIR[:DIR]:" +# string "DIR[ DIR]" will be prepended to VARIABLE +# ":DIR[:DIR]" +# string "DIR[ DIR]" will be appended to VARIABLE +# "DIRP[:DIRP]::[DIRA:]DIRA" +# string "DIRP[ DIRP]" will be prepended to VARIABLE and string +# "DIRA[ DIRA]" will be appended to VARIABLE +# "DIR[:DIR]" +# VARIABLE will be replaced by "DIR[ DIR]" +func_munge_path_list () +{ + case x$2 in + x) + ;; + *:) + eval $1=\"`$ECHO $2 | $SED 's/:/ /g'` \$$1\" + ;; + x:*) + eval $1=\"\$$1 `$ECHO $2 | $SED 's/:/ /g'`\" + ;; + *::*) + eval $1=\"\$$1\ `$ECHO $2 | $SED -e 's/.*:://' -e 's/:/ /g'`\" + eval $1=\"`$ECHO $2 | $SED -e 's/::.*//' -e 's/:/ /g'`\ \$$1\" + ;; + *) + eval $1=\"`$ECHO $2 | $SED 's/:/ /g'`\" + ;; + esac +} + + +# Calculate cc_basename. Skip known compiler wrappers and cross-prefix. +func_cc_basename () +{ + for cc_temp in $*""; do + case $cc_temp in + compile | *[\\/]compile | ccache | *[\\/]ccache ) ;; + distcc | *[\\/]distcc | purify | *[\\/]purify ) ;; + \-*) ;; + *) break;; + esac + done + func_cc_basename_result=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"` +} + + +# ### END FUNCTIONS SHARED WITH CONFIGURE + +_LT_EOF + + case $host_os in + aix3*) + cat <<\_LT_EOF >> "$cfgfile" +# AIX sometimes has problems with the GCC collect2 program. For some +# reason, if we set the COLLECT_NAMES environment variable, the problems +# vanish in a puff of smoke. +if test set != "${COLLECT_NAMES+set}"; then + COLLECT_NAMES= + export COLLECT_NAMES +fi +_LT_EOF + ;; + esac + + +ltmain=$ac_aux_dir/ltmain.sh + + + # We use sed instead of cat because bash on DJGPP gets confused if + # if finds mixed CR/LF and LF-only lines. Since sed operates in + # text mode, it properly converts lines to CR/LF. This bash problem + # is reportedly fixed, but why not run on old versions too? + sed '$q' "$ltmain" >> "$cfgfile" \ + || (rm -f "$cfgfile"; exit 1) + + mv -f "$cfgfile" "$ofile" || + (rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile") + chmod +x "$ofile" + + + cat <<_LT_EOF >> "$ofile" + +# ### BEGIN LIBTOOL TAG CONFIG: CXX + +# The linker used to build libraries. +LD=$lt_LD_CXX + +# How to create reloadable object files. +reload_flag=$lt_reload_flag_CXX +reload_cmds=$lt_reload_cmds_CXX + +# Commands used to build an old-style archive. +old_archive_cmds=$lt_old_archive_cmds_CXX + +# A language specific compiler. +CC=$lt_compiler_CXX + +# Is the compiler the GNU compiler? +with_gcc=$GCC_CXX + +# Compiler flag to turn off builtin functions. +no_builtin_flag=$lt_lt_prog_compiler_no_builtin_flag_CXX + +# Additional compiler flags for building library objects. +pic_flag=$lt_lt_prog_compiler_pic_CXX + +# How to pass a linker flag through the compiler. +wl=$lt_lt_prog_compiler_wl_CXX + +# Compiler flag to prevent dynamic linking. +link_static_flag=$lt_lt_prog_compiler_static_CXX + +# Does compiler simultaneously support -c and -o options? +compiler_c_o=$lt_lt_cv_prog_compiler_c_o_CXX + +# Whether or not to add -lc for building shared libraries. +build_libtool_need_lc=$archive_cmds_need_lc_CXX + +# Whether or not to disallow shared libs when runtime libs are static. +allow_libtool_libs_with_static_runtimes=$enable_shared_with_static_runtimes_CXX + +# Compiler flag to allow reflexive dlopens. +export_dynamic_flag_spec=$lt_export_dynamic_flag_spec_CXX + +# Compiler flag to generate shared objects directly from archives. +whole_archive_flag_spec=$lt_whole_archive_flag_spec_CXX + +# Whether the compiler copes with passing no objects directly. +compiler_needs_object=$lt_compiler_needs_object_CXX + +# Create an old-style archive from a shared archive. +old_archive_from_new_cmds=$lt_old_archive_from_new_cmds_CXX + +# Create a temporary old-style archive to link instead of a shared archive. +old_archive_from_expsyms_cmds=$lt_old_archive_from_expsyms_cmds_CXX + +# Commands used to build a shared archive. +archive_cmds=$lt_archive_cmds_CXX +archive_expsym_cmds=$lt_archive_expsym_cmds_CXX + +# Commands used to build a loadable module if different from building +# a shared archive. +module_cmds=$lt_module_cmds_CXX +module_expsym_cmds=$lt_module_expsym_cmds_CXX + +# Whether we are building with GNU ld or not. +with_gnu_ld=$lt_with_gnu_ld_CXX + +# Flag that allows shared libraries with undefined symbols to be built. +allow_undefined_flag=$lt_allow_undefined_flag_CXX + +# Flag that enforces no undefined symbols. +no_undefined_flag=$lt_no_undefined_flag_CXX + +# Flag to hardcode \$libdir into a binary during linking. +# This must work even if \$libdir does not exist +hardcode_libdir_flag_spec=$lt_hardcode_libdir_flag_spec_CXX + +# Whether we need a single "-rpath" flag with a separated argument. +hardcode_libdir_separator=$lt_hardcode_libdir_separator_CXX + +# Set to "yes" if using DIR/libNAME\$shared_ext during linking hardcodes +# DIR into the resulting binary. +hardcode_direct=$hardcode_direct_CXX + +# Set to "yes" if using DIR/libNAME\$shared_ext during linking hardcodes +# DIR into the resulting binary and the resulting library dependency is +# "absolute",i.e impossible to change by setting \$shlibpath_var if the +# library is relocated. +hardcode_direct_absolute=$hardcode_direct_absolute_CXX + +# Set to "yes" if using the -LDIR flag during linking hardcodes DIR +# into the resulting binary. +hardcode_minus_L=$hardcode_minus_L_CXX + +# Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR +# into the resulting binary. +hardcode_shlibpath_var=$hardcode_shlibpath_var_CXX + +# Set to "yes" if building a shared library automatically hardcodes DIR +# into the library and all subsequent libraries and executables linked +# against it. +hardcode_automatic=$hardcode_automatic_CXX + +# Set to yes if linker adds runtime paths of dependent libraries +# to runtime path list. +inherit_rpath=$inherit_rpath_CXX + +# Whether libtool must link a program against all its dependency libraries. +link_all_deplibs=$link_all_deplibs_CXX + +# Set to "yes" if exported symbols are required. +always_export_symbols=$always_export_symbols_CXX + +# The commands to list exported symbols. +export_symbols_cmds=$lt_export_symbols_cmds_CXX + +# Symbols that should not be listed in the preloaded symbols. +exclude_expsyms=$lt_exclude_expsyms_CXX + +# Symbols that must always be exported. +include_expsyms=$lt_include_expsyms_CXX + +# Commands necessary for linking programs (against libraries) with templates. +prelink_cmds=$lt_prelink_cmds_CXX + +# Commands necessary for finishing linking programs. +postlink_cmds=$lt_postlink_cmds_CXX + +# Specify filename containing input files. +file_list_spec=$lt_file_list_spec_CXX + +# How to hardcode a shared library path into an executable. +hardcode_action=$hardcode_action_CXX + +# The directories searched by this compiler when creating a shared library. +compiler_lib_search_dirs=$lt_compiler_lib_search_dirs_CXX + +# Dependencies to place before and after the objects being linked to +# create a shared library. +predep_objects=$lt_predep_objects_CXX +postdep_objects=$lt_postdep_objects_CXX +predeps=$lt_predeps_CXX +postdeps=$lt_postdeps_CXX + +# The library search path used internally by the compiler when linking +# a shared library. +compiler_lib_search_path=$lt_compiler_lib_search_path_CXX + +# ### END LIBTOOL TAG CONFIG: CXX +_LT_EOF + + ;; + "podwrapper.pl":F) chmod +x,-w podwrapper.pl ;; + "common/protocol/generate-protostrings.sh":F) chmod +x,-w common/protocol/generate-protostrings.sh ;; + + esac +done # for ac_tag + + +as_fn_exit 0 +_ACEOF +ac_clean_files=$ac_clean_files_save + +test $ac_write_fail = 0 || + as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5 + + +# configure is writing to config.log, and then calls config.status. +# config.status does its own redirection, appending to config.log. +# Unfortunately, on DOS this fails, as config.log is still kept open +# by configure, so config.status won't be able to write to it; its +# output is simply discarded. So we exec the FD to /dev/null, +# effectively closing config.log, so it can be properly (re)opened and +# appended to by config.status. When coming back to configure, we +# need to make the FD available again. +if test "$no_create" != yes; then + ac_cs_success=: + ac_config_status_args= + test "$silent" = yes && + ac_config_status_args="$ac_config_status_args --quiet" + exec 5>/dev/null + $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false + exec 5>>config.log + # Use ||, not &&, to avoid exiting from the if with $? = 1, which + # would make configure fail if this is the last instruction. + $ac_cs_success || as_fn_exit 1 +fi +if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5 +$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;} +fi + + +echo +echo +echo "----------------------------------------------------------------------" +echo "Thank you for downloading $PACKAGE_STRING" +echo +echo "This is how we have configured the optional components for you today:" +echo + +feature () +{ + printf %s " $1" + shift + if "$@"; then echo "yes"; else echo "no"; fi +} + +echo "Optional server features:" +echo +feature "bash-completion ........................ " \ + test "x$HAVE_BASH_COMPLETION_TRUE" = "x" +feature "manual pages ........................... " \ + test "x$HAVE_POD_TRUE" = "x" +feature "SELinux ................................ " \ + test "x$LIBSELINUX_LIBS" != "x" +feature "TLS .................................... " \ + test "x$GNUTLS_LIBS" != "x" + +echo +echo "Optional plugins:" +echo +feature "curl ................................... " \ + test "x$HAVE_CURL_TRUE" = "x" +feature "example4 ............................... " \ + test "x$HAVE_PERL_TRUE" = "x" +feature "floppy ................................. " \ + test "x$HAVE_ICONV_TRUE" = "x" +feature "guestfs ................................ " \ + test "x$HAVE_LIBGUESTFS_TRUE" = "x" +feature "gzip ................................... " \ + test "x$HAVE_ZLIB_TRUE" = "x" +feature "iso .................................... " \ + test "x$HAVE_ISO_TRUE" = "x" +feature "libvirt ................................ " \ + test "x$HAVE_LIBVIRT_TRUE" = "x" +feature "linuxdisk .............................. " \ + test "x$HAVE_MKE2FS_WITH_D_TRUE" = "x" +feature "nbd .................................... " \ + test "x$HAVE_LIBNBD_TRUE" = "x" +feature "ssh .................................... " \ + test "x$HAVE_SSH_TRUE" = "x" +feature "torrent ................................ " \ + test "x$HAVE_TORRENT_TRUE" = "x" +feature "vddk ................................... " \ + test "x$HAVE_VDDK_TRUE" = "x" + +echo +echo "Languages:" +echo +feature "go ..................................... " \ + test "x$HAVE_GOLANG_TRUE" = "x" +feature "lua .................................... " \ + test "x$HAVE_LUA_TRUE" = "x" +feature "ocaml .................................. " \ + test "x$HAVE_OCAML_TRUE" = "x" +feature "perl ................................... " \ + test "x$HAVE_PERL_TRUE" = "x" +feature "python ................................. " \ + test "x$HAVE_PYTHON_TRUE" = "x" +feature "ruby ................................... " \ + test "x$HAVE_RUBY_TRUE" = "x" +feature "rust ................................... " \ + test "x$HAVE_RUST_TRUE" = "x" +feature "tcl .................................... " \ + test "x$HAVE_TCL_TRUE" = "x" + +echo +echo "Optional filters:" +echo +feature "ext2 ................................... " \ + test "x$HAVE_EXT2_TRUE" = "x" +feature "gzip ................................... " \ + test "x$HAVE_ZLIB_TRUE" = "x" +feature "xz ..................................... " \ + test "x$HAVE_LIBLZMA_TRUE" = "x" + +echo +echo "Other optional features:" +echo +feature "allocator=zstd ......................... " \ + test "x$HAVE_LIBZSTD_TRUE" = "x" + +echo +echo "If any optional component is configured ‘no’ when you expected ‘yes’" +echo "then you should check the preceding messages and README." +echo +echo "Please report bugs back to the mailing list:" +echo "http://www.redhat.com/mailman/listinfo/libguestfs" +echo +echo "Next you should type 'make' to build the package," +echo "then 'make check' to run the tests." diff --git a/configure.ac b/configure.ac new file mode 100644 index 0000000..0082651 --- /dev/null +++ b/configure.ac @@ -0,0 +1,1297 @@ +# nbdkit +# Copyright (C) 2013-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +m4_define([NBDKIT_VERSION_MAJOR], [1]) +m4_define([NBDKIT_VERSION_MINOR], [22]) +m4_define([NBDKIT_VERSION_MICRO], [4]) +AC_INIT([nbdkit], + NBDKIT_VERSION_MAJOR.NBDKIT_VERSION_MINOR.NBDKIT_VERSION_MICRO) +AC_CONFIG_MACRO_DIR([m4]) +m4_ifdef([AC_USE_SYSTEM_EXTENSIONS],[], + [m4_define([AC_USE_SYSTEM_EXTENSIONS],[])]) + +dnl This must be used very early else you will get +dnl "warning: AC_RUN_IFELSE was called before AC_USE_SYSTEM_EXTENSIONS" +AC_USE_SYSTEM_EXTENSIONS + +dnl NB: Do not [quote] this parameter. +AM_INIT_AUTOMAKE(foreign) +AC_PROG_LIBTOOL +LT_INIT + +dnl List of plugins and filters. +lang_plugins="\ + cc \ + golang \ + lua \ + ocaml \ + perl \ + python \ + ruby \ + rust \ + sh \ + tcl \ + " +non_lang_plugins="\ + cdi \ + curl \ + data \ + eval \ + example1 \ + example2 \ + example3 \ + example4 \ + file \ + floppy \ + full \ + guestfs \ + gzip \ + info \ + iso \ + libvirt \ + linuxdisk \ + memory \ + nbd \ + null \ + ondemand \ + partitioning \ + pattern \ + random \ + split \ + ssh \ + streaming \ + tar \ + tmpdisk \ + torrent \ + vddk \ + zero \ + " +plugins="$(echo $(printf %s\\n $lang_plugins $non_lang_plugins | sort -u))" +filters="\ + blocksize \ + cache \ + cacheextents \ + cow \ + ddrescue \ + delay \ + error \ + exitlast \ + ext2 \ + extentlist \ + fua \ + gzip \ + ip \ + limit \ + log \ + nocache \ + noextents \ + nofilter \ + noparallel \ + nozero \ + offset \ + partition \ + pause \ + rate \ + readahead \ + retry \ + stats \ + swab \ + tar \ + tls-fallback \ + truncate \ + xz \ + " +AC_SUBST([plugins]) +AC_SUBST([lang_plugins]) +AC_SUBST([non_lang_plugins]) +AC_SUBST([filters]) + +dnl Some very basic tools. +AC_PROG_SED + +dnl Check for basic C environment. +AC_PROG_CC_STDC +AC_PROG_INSTALL +AC_PROG_CPP +AC_SYS_LARGEFILE + +AC_C_PROTOTYPES +test "x$U" != "x" && AC_MSG_ERROR([Compiler not ANSI compliant]) + +AM_PROG_CC_C_O + +dnl Define the host CPU architecture (defines 'host_cpu'). +AC_CANONICAL_HOST +AC_DEFINE_UNQUOTED([host_cpu],["$host_cpu"],[Host architecture.]) + +dnl Define 'host_os'. +AC_DEFINE_UNQUOTED([host_os],["$host_os"],[Host operating system.]) + +dnl Defines WORDS_BIGENDIAN on big endian platforms. +AC_C_BIGENDIAN + +dnl Check for C++ (optional, we just use this to test the header +dnl can be included from C++ code). +AC_PROG_CXX + +dnl The C++ compiler test is pretty useless because even if it fails +dnl it sets CXX=g++. So test the compiler actually works. +AC_MSG_CHECKING([if the C++ compiler really really works]) +AS_IF([$CXX --version >&AS_MESSAGE_LOG_FD 2>&1],[have_cxx=yes],[have_cxx=no]) +AC_MSG_RESULT([$have_cxx]) +AM_CONDITIONAL([HAVE_CXX], [test "$have_cxx" = "yes"]) + +AC_ARG_ENABLE([gcc-warnings], + [AS_HELP_STRING([--enable-gcc-warnings], + [turn on lots of GCC warnings (for developers)])], + [case $enableval in + yes|no) ;; + *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;; + esac + gcc_warnings=$enableval], + [gcc_warnings=no] +) +if test "x$gcc_warnings" = "xyes"; then + WARNINGS_CFLAGS="-Wall -Wshadow -Wvla -Werror" + AC_SUBST([WARNINGS_CFLAGS]) +fi + +dnl Check if the compiler supports -std=c90 flag. This is only used +dnl during a test. OpenBSD GCC does not support this flag so we skip +dnl that test. +AC_MSG_CHECKING([if the compiler supports -std=c90 for ANSI C test]) +old_CFLAGS="$CFLAGS" +CFLAGS="$CFLAGS -std=c90" +AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])], + [supports_std_c90=yes], + [supports_std_c90=no]) +CFLAGS="$old_CFLAGS" +AC_MSG_RESULT([$supports_std_c90]) +AM_CONDITIONAL([CAN_TEST_ANSI_C], [test "x$supports_std_c90" = "xyes"]) + +dnl On Haiku we must use BSD-compatibility headers to get the endian +dnl macros we use. +AC_MSG_CHECKING(whether OS-dependent include paths are required) +AS_CASE([$host_os], + [haiku*], [CFLAGS="$CFLAGS -I`findpaths -p /system B_FIND_PATH_HEADERS_DIRECTORY`/bsd"; AC_MSG_RESULT(yes)], + [AC_MSG_RESULT(no)] +) + +dnl On Linux /tmp is often tmpfs which is not large enough, so use /var/tmp. +dnl But Haiku only has /tmp. +AC_MSG_CHECKING([for temporary directory for large files]) +AS_CASE([$host_os], + [haiku*], [LARGE_TMPDIR=/tmp], + [LARGE_TMPDIR=/var/tmp] +) +AC_MSG_RESULT([$LARGE_TMPDIR]) +AC_DEFINE_UNQUOTED([LARGE_TMPDIR],["$LARGE_TMPDIR"], + [Temporary directory for large files]) + +dnl Check if libc has program_invocation_short_name. +AC_CHECK_DECLS([program_invocation_short_name], [], [], [#include ]) + +AX_PTHREAD + +dnl Check if __attribute__((cleanup(...))) works. +dnl Set -Werror, otherwise gcc will only emit a warning for attributes +dnl that it doesn't understand. +acx_nbdkit_save_CFLAGS="${CFLAGS}" +CFLAGS="${CFLAGS} -Werror" +AC_MSG_CHECKING([if __attribute__((cleanup(...))) works with this compiler]) +AC_COMPILE_IFELSE([ +AC_LANG_SOURCE([[ +#include +#include + +void +freep (void *ptr) +{ + exit (EXIT_SUCCESS); +} + +void +test (void) +{ + __attribute__((cleanup(freep))) char *ptr = malloc (100); +} + +int +main (int argc, char *argv[]) +{ + test (); + exit (EXIT_FAILURE); +} +]]) + ],[ + AC_MSG_RESULT([yes]) + ],[ + AC_MSG_RESULT([no]) + AC_MSG_ERROR( +['__attribute__((cleanup(...)))' does not work. + +You may not be using a sufficiently recent version of GCC or CLANG, or +you may be using a C compiler which does not support this attribute, +or the configure test may be wrong. + +This code requires the attribute to work for proper locking between threads.])]) +CFLAGS="${acx_nbdkit_save_CFLAGS}" + +dnl Check for __auto_type (GCC extension). +AC_MSG_CHECKING([if __auto_type is available in this compiler]) +AC_COMPILE_IFELSE([ +AC_LANG_SOURCE([[ +static int +test (int a) +{ + __auto_type at = a; + return at; +} +]]) + ],[ + AC_MSG_RESULT([yes]) + AC_DEFINE([HAVE_AUTO_TYPE],[1],[__auto_type is available]) + ],[ + AC_MSG_RESULT([no]) + ] +) + +dnl 'environ' is not always declared in public header files: +dnl Linux => Haiku => +dnl FreeBSD & OpenBSD => not declared +dnl On platforms where it's not declared we must add an extern decl. +AC_MSG_CHECKING([if environ is declared in header files]) +AC_COMPILE_IFELSE([ +AC_LANG_SOURCE([[ +#include +#include +static int +test (void) +{ + const char **env = environ; + return env ? 1 : 0; // this just forces env to be used +} +]]) + ],[ + AC_MSG_RESULT([yes]) + AC_DEFINE([HAVE_ENVIRON_DECL],[1],[environ is declared in headers]) + ],[ + AC_MSG_RESULT([no]) + ] +) + +dnl Check for other headers, all optional. +AC_CHECK_HEADERS([\ + alloca.h \ + byteswap.h \ + endian.h \ + stdatomic.h \ + sys/endian.h \ + sys/mman.h \ + sys/prctl.h \ + sys/procctl.h]) + +AC_CHECK_HEADERS([linux/vm_sockets.h], [], [], [#include ]) + +dnl Check for functions in libc, all optional. +AC_CHECK_FUNCS([\ + accept4 \ + fdatasync \ + flockfile \ + funlockfile \ + get_current_dir_name \ + mkostemp \ + mlock \ + mlockall \ + munlock \ + open_memstream \ + pipe2 \ + ppoll \ + posix_fadvise]) + +dnl Check whether printf("%m") works +AC_CACHE_CHECK([whether the printf family supports %m], + [nbdkit_cv_func_printf_percent_m], + [AC_RUN_IFELSE( + [AC_LANG_PROGRAM([[ +#include +#include +#include + ]], [[ + char buf[200] = ""; + errno = EINVAL; + snprintf(buf, sizeof buf, "%m"); + return !!strcmp (buf, strerror (EINVAL)); + ]])], + [nbdkit_cv_func_printf_percent_m=yes], + [nbdkit_cv_func_printf_percent_m=no], + [[ + case "$host_os" in + *-gnu* | gnu*) nbdkit_cv_func_printf_percent_m=yes;; + *) nbdkit_cv_func_printf_percent_m="guessing no";; + esac + ]])]) +AS_IF([test "x$nbdkit_cv_func_printf_percent_m" = xyes], + [AC_DEFINE([HAVE_VFPRINTF_PERCENT_M],[1], + [Define to 1 if vfprintf supports %m.])]) + +old_LIBS="$LIBS" +AC_SEARCH_LIBS([dlsym], [dl dld], [ + AS_IF([test "x$ac_cv_search_dlsym" != "xnone required"], + [DL_LIBS="$ac_cv_search_dlsym"], [DL_LIBS=]) + AC_SUBST([DL_LIBS]) + ], [AC_MSG_ERROR([unable to find the dlsym() function]) +]) +LIBS="$old_LIBS" + +dnl Test if header can build working binaries. +dnl +dnl On FreeBSD: iconv and libiconv both exist, both can be installed +dnl simultaneously, can exist in two separate places, and +dnl if you get the wrong header/library mix everything breaks. +dnl +dnl On Haiku: libiconv is required to link to iconv_* functions. +AC_ARG_WITH([iconv], + [AS_HELP_STRING([--without-iconv], + [don't try to link against iconv @<:@default=check@:>@])], + [], + [with_iconv=check]) +AS_IF([test "x$with_iconv" != "xno"],[ + AC_CHECK_HEADER([iconv.h],[ + AC_MSG_CHECKING([if can be used to link a program]) + AC_LINK_IFELSE([ +AC_LANG_SOURCE([[ +#include +#include +#include +int +main (int argc, char *argv[]) +{ + iconv_t ic = iconv_open ("", ""); + iconv_close (ic); + exit (0); +} +]]) + ],[ + AC_MSG_RESULT([yes]) + iconv_working=yes + ],[ + AC_MSG_RESULT([no]) + ]) + ]) + ]) +AM_CONDITIONAL([HAVE_ICONV], [test "x$iconv_working" = "xyes"]) + +dnl Don't use linker script for the server on FreeBSD because +dnl FreeBSD's linker is broken. See eg: +dnl https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=190851 +AC_MSG_CHECKING([if we should use a linker script for the server]) +AS_CASE([$host_os], + [freebsd*], [use_linker_script_for_server=no], + [use_linker_script_for_server=yes] +) +AC_MSG_RESULT([$use_linker_script_for_server]) +AM_CONDITIONAL([USE_LINKER_SCRIPT_FOR_SERVER], + [test "x$use_linker_script_for_server" = "xyes"]) + +dnl Check if -rdynamic linker flag works. +acx_nbdkit_save_LDFLAGS="${LDFLAGS}" +LDFLAGS="${LDFLAGS} -rdynamic" +AC_MSG_CHECKING([if linker supports -rdynamic]) +AC_LINK_IFELSE([ +AC_LANG_SOURCE([[ +#include +int +main (int argc, char *argv[]) +{ + exit (EXIT_SUCCESS); +} +]]) + ],[ + AC_MSG_RESULT([yes]) + DL_LDFLAGS=-rdynamic + ],[ + AC_MSG_RESULT([no]) +]) +dnl restore CFLAGS +LDFLAGS="${acx_nbdkit_save_LDFLAGS}" +AC_SUBST([DL_LDFLAGS]) + +dnl Check for dladdr in -ldl, optional. This is a glibc extension. +old_LIBS="$LIBS" +LIBS="$DL_LIBS $LIBS" +AC_CHECK_FUNCS([dladdr]) +LIBS="$old_LIBS" + +dnl Is this Windows? +AC_MSG_CHECKING([if the target is Windows]) +AS_CASE([$host_os], + [mingw*|msys*], [ + is_windows=yes + NO_UNDEFINED_ON_WINDOWS="-no-undefined" + ], + [is_windows=no] +) +AC_MSG_RESULT([$is_windows]) +AC_SUBST([NO_UNDEFINED_ON_WINDOWS]) + +AC_SEARCH_LIBS([getaddrinfo], [network socket]) + +dnl Check for SELinux socket labelling (optional). +PKG_CHECK_MODULES([LIBSELINUX], [libselinux], [ + AC_SUBST([LIBSELINUX_CFLAGS]) + AC_SUBST([LIBSELINUX_LIBS]) + AC_DEFINE([HAVE_LIBSELINUX],[1],[libselinux found at compile time.]) +], [ + AC_MSG_WARN([libselinux not found, SELinux socket labelling support will be disabled.]) +]) + +dnl Check for GnuTLS (optional, for TLS support). +PKG_CHECK_MODULES([GNUTLS], [gnutls >= 3.3.0], [ + AC_SUBST([GNUTLS_CFLAGS]) + AC_SUBST([GNUTLS_LIBS]) + AC_DEFINE([HAVE_GNUTLS],[1],[gnutls found at compile time.]) +], [ + AC_MSG_WARN([gnutls not found or < 3.3.0, TLS support will be disabled.]) +]) + +AS_IF([test "$GNUTLS_LIBS" != ""],[ + AC_MSG_CHECKING([for default TLS session priority string]) + AC_ARG_WITH([tls-priority], + [AS_HELP_STRING([--with-tls-priority], + [default TLS session priority string @<:@default=NORMAL@:>@])], + [tls_priority=$withval], + [tls_priority=NORMAL]) + AC_MSG_RESULT([$tls_priority]) + AC_DEFINE_UNQUOTED([TLS_PRIORITY],["$tls_priority"], + [Default TLS session priority string]) + + # Check for APIs which may not be present. + old_LIBS="$LIBS" + LIBS="$GNUTLS_LIBS $LIBS" + AC_CHECK_FUNCS([\ + gnutls_base64_decode2 \ + gnutls_certificate_set_known_dh_params \ + gnutls_session_set_verify_cert]) + LIBS="$old_LIBS" +]) + +AC_ARG_ENABLE([linuxdisk], + [AS_HELP_STRING([--disable-linuxdisk], + [disable linuxdisk plugin @<:@default=check@:>@])], + [], + [enable_linuxdisk=check]) +dnl Check for mke2fs -d (used by linuxdisk plugin). There are two +dnl possible outcomes that we care about: (1) We have mke2fs and +dnl it supports the -d option. (2) We either don't have mke2fs +dnl or it's too old to support the -d option (eg. on RHEL 7). +mke2fs_with_d=no +AS_IF([test "$enable_linuxdisk" != "no"], [ + AC_MSG_CHECKING([for mke2fs supporting the -d option]) + AS_IF([mke2fs -V >/dev/null 2>&1], [ + AS_IF([LANG=C mke2fs -d 2>&1 | grep -sq "option requires an argument"], [ + mke2fs_with_d=yes + ]) + ]) + AC_MSG_RESULT([$mke2fs_with_d]) +]) +AM_CONDITIONAL([HAVE_MKE2FS_WITH_D],[test "x$mke2fs_with_d" = "xyes"]) + +dnl Check for valgrind. +AC_CHECK_PROG([VALGRIND],[valgrind],[valgrind],[no]) + +dnl If valgrind headers are available (optional). +dnl Since this is only useful for developers, you have to enable +dnl it explicitly using --enable-valgrind. +AC_ARG_ENABLE([valgrind], + [AS_HELP_STRING([--enable-valgrind], + [enable Valgrind extensions (for developers)])], + [enable_valgrind=yes], + [enable_valgrind=no]) +AS_IF([test "x$enable_valgrind" = "xyes"],[ + PKG_CHECK_MODULES([VALGRIND], [valgrind], [ + AC_SUBST([VALGRIND_CFLAGS]) + AC_SUBST([VALGRIND_LIBS]) + AC_DEFINE([HAVE_VALGRIND],[1],[Valgrind headers found at compile time]) + ],[ + AC_MSG_ERROR([--enable-valgrind given, but Valgrind headers are not available]) + ]) +]) + +dnl Build the special libFuzzer version of nbdkit. DO NOT USE THIS for +dnl normal builds. See fuzzing/README. +AC_ARG_ENABLE([libfuzzer], + [AS_HELP_STRING([--enable-libfuzzer], + [build libFuzzer test binary (developers only)])], + [enable_libfuzzer=yes], + [enable_libfuzzer=no]) +AS_IF([test "x$enable_libfuzzer" = "xyes"],[ + AC_DEFINE([ENABLE_LIBFUZZER],[1],[Enable special libFuzzer binary]) +]) +AM_CONDITIONAL([ENABLE_LIBFUZZER],[test "x$enable_libfuzzer" = "xyes"]) + +dnl Bash completion. +PKG_CHECK_MODULES([BASH_COMPLETION], [bash-completion >= 2.0], [ + bash_completion=yes + AC_MSG_CHECKING([for bash-completions directory]) + m4_ifdef([PKG_CHECK_VAR],[ + PKG_CHECK_VAR(bashcompdir, [bash-completion], [completionsdir]) + ]) + AS_IF([test -z "$bashcompdir"], [ + bashcompdir="${sysconfdir}/bash_completion.d" + ]) + AC_MSG_RESULT([$bashcompdir]) + AC_SUBST([bashcompdir]) +],[ + bash_completion=no + AC_MSG_WARN([bash-completion not installed]) +]) +AM_CONDITIONAL([HAVE_BASH_COMPLETION],[test "x$bash_completion" = "xyes"]) + +dnl Check we have enough to run podwrapper. +AC_CHECK_PROG([PERL],[perl],[perl],[no]) +AS_IF([test "x$PERL" != "xno"],[ + AC_MSG_CHECKING([if we have perl Pod::Man and Pod::Simple]) + AS_IF([$PERL -MPod::Man -MPod::Simple -e 1 >&AS_MESSAGE_LOG_FD 2>&1],[ + enable_pod=yes + ],[ + enable_pod=no + ]) + AC_MSG_RESULT([$enable_pod]) +]) +AM_CONDITIONAL([HAVE_POD], + [test "x$PERL" != "xno" && test "x$enable_pod" = "xyes"]) + +dnl Define the path to the podwrapper program. +PODWRAPPER="$PERL $(pwd)/podwrapper.pl" +AC_SUBST([PODWRAPPER]) + +dnl Allow all plugins and filters to be disabled. +AC_ARG_ENABLE([plugins], + [AS_HELP_STRING([--disable-plugins], + [disable all bundled plugins and filters])]) +AM_CONDITIONAL([HAVE_PLUGINS], [test "x$enable_plugins" != "xno"]) + +dnl Check for Perl, for embedding in the perl plugin. +dnl Note that the perl binary is checked above. +AC_ARG_ENABLE([perl], + [AS_HELP_STRING([--disable-perl], [disable Perl embed plugin])], + [], + [enable_perl=yes]) +AS_IF([test "x$PERL" != "xno" && test "x$enable_perl" != "xno"],[ + dnl Check for Perl archlib. + AC_MSG_CHECKING([for Perl embed archlib]) + PERL_ARCHLIB="$($PERL -MConfig -e 'print $Config{archlib}')" + AS_IF([ test -n "$PERL_ARCHLIB" ],[ + AC_MSG_RESULT([$PERL_ARCHLIB]) + ],[ + AC_MSG_NOTICE([Perl embed module disabled]) + enable_perl=no + ]) + + dnl Check for Perl CFLAGS. + AC_MSG_CHECKING([for Perl embed CFLAGS]) + PERL_CFLAGS="$($PERL -MExtUtils::Embed -e 'ccflags')" + AS_IF([ test -n "$PERL_CFLAGS" ],[ + AC_MSG_RESULT([$PERL_CFLAGS]) + ],[ + AC_MSG_NOTICE([Perl embed module disabled]) + enable_perl=no + ]) + + dnl Check for Perl LDOPTS. + AC_MSG_CHECKING([for Perl embed LDOPTS]) + PERL_LDOPTS="$($PERL -MExtUtils::Embed -e 'ldopts')" + AC_MSG_RESULT([$PERL_LDOPTS]) + + dnl XXX Could check these actually work. +]) +AM_CONDITIONAL([HAVE_PERL],[test "x$enable_perl" != "xno" && test "x$PERL" != "xno"]) +AC_SUBST([PERL_ARCHLIB]) +AC_SUBST([PERL_CFLAGS]) +AC_SUBST([PERL_LDOPTS]) + +dnl Check for Python 3, for embedding in the python plugin. +AC_PATH_PROGS([PYTHON],[python3 python],[no]) +AC_ARG_ENABLE([python], + [AS_HELP_STRING([--disable-python], [disable Python embed plugin])], + [], + [enable_python=yes]) +AS_IF([test "x$PYTHON" != "xno" && test "x$enable_python" != "xno"],[ + AC_MSG_CHECKING([version of $PYTHON]) + PYTHON_VERSION_MAJOR=`$PYTHON -c "import sys; print (sys.version_info@<:@0@:>@)"` + PYTHON_VERSION_MINOR=`$PYTHON -c "import sys; print (sys.version_info@<:@1@:>@)"` + PYTHON_VERSION="$PYTHON_VERSION_MAJOR.$PYTHON_VERSION_MINOR" + AS_IF([test -n "$PYTHON_VERSION"],[ + AC_MSG_RESULT([$PYTHON_VERSION]) + ],[ + AC_MSG_NOTICE([Python embed module disabled]) + enable_python=no + ]) + + AC_MSG_CHECKING([Python major version is 3]) + AS_IF([test "x$PYTHON_VERSION_MAJOR" = "x3"],[ + AC_MSG_RESULT([yes]) + ],[ + AC_MSG_RESULT([no]) + AC_MSG_ERROR([Python $PYTHON_VERSION_MAJOR <> 3 is no longer supported. + +Python 2 end of life is 2020-01-01 and nbdkit >= 1.16 no longer +supports it. + +If you want to use Python 2, you will need to use nbdkit 1.14.]) + ]) + + dnl Check for Python CFLAGS, libraries. + dnl For Python >= 3.8 we have to use python--embed.pc, see: + dnl https://docs.python.org/3.8/whatsnew/3.8.html#debug-build-uses-the-same-abi-as-release-build + dnl The python.pc is called python-.pc on Debian and + dnl later versions of Fedora, and python.pc on older versions + dnl of Fedora. + PKG_CHECK_MODULES([PYTHON], [python-"$PYTHON_VERSION"-embed], [ + AC_SUBST([PYTHON_CFLAGS]) + AC_SUBST([PYTHON_LIBS]) + AC_SUBST([PYTHON_VERSION]) + AC_DEFINE([HAVE_PYTHON],[1],[Python library found at compile time]) + ],[ + PKG_CHECK_MODULES([PYTHON], [python-"$PYTHON_VERSION"], [ + AC_SUBST([PYTHON_CFLAGS]) + AC_SUBST([PYTHON_LIBS]) + AC_SUBST([PYTHON_VERSION]) + AC_DEFINE([HAVE_PYTHON],[1],[Python library found at compile time]) + ],[ + PKG_CHECK_MODULES([PYTHON], [python], [ + AC_SUBST([PYTHON_CFLAGS]) + AC_SUBST([PYTHON_LIBS]) + AC_SUBST([PYTHON_VERSION]) + AC_DEFINE([HAVE_PYTHON],[1],[Python library found at compile time]) + ],[ + AC_MSG_WARN([python $PYTHON_VERSION not found]) + enable_python=no + ])])]) +]) +AM_CONDITIONAL([HAVE_PYTHON],[test "x$enable_python" != "xno" && test "x$PYTHON" != "xno"]) +AC_SUBST([PYTHON_CFLAGS]) +AC_SUBST([PYTHON_LIBS]) +AC_SUBST([PYTHON_LDFLAGS]) + +dnl For the OCaml plugin, you can set OCAMLOPTFLAGS before running +dnl ./configure to specify any extra flags you want to pass to +dnl ocamlopt. +AC_SUBST([OCAMLOPTFLAGS]) + +dnl Check for OCaml, for embedding in the ocaml plugin. +AC_PROG_OCAML +AC_ARG_ENABLE([ocaml], + [AS_HELP_STRING([--disable-ocaml], [disable OCaml embed plugin])], + [], + [enable_ocaml=yes]) +AS_IF([test "x$OCAMLOPT" != "xno" && test "x$enable_ocaml" != "xno"],[ + dnl Check OCaml can create a shared library (see README for details). + AC_MSG_CHECKING([if $OCAMLOPT can create a shared library]) + echo 'print_endline "test"' > conftest.ml + AS_IF([$OCAMLOPT $OCAMLOPTFLAGS -output-obj -runtime-variant _pic -o conftest.so conftest.ml >&AS_MESSAGE_LOG_FD 2>&1],[ + AC_MSG_RESULT([yes]) + ocaml_link_shared=yes + ],[ + AC_MSG_RESULT([no]) + ]) + rm -f conftest.ml conftest.cmi conftest.cmx conftest.so conftest.o +]) +AM_CONDITIONAL([HAVE_OCAML],[test "x$OCAMLOPT" != "xno" && + test "x$ocaml_link_shared" = "xyes"]) + +dnl Check if OCaml has caml_alloc_initialized_string (added 2017). +AS_IF([test "x$OCAMLC" != "xno" && test "x$OCAMLFIND" != "xno" && \ + test "x$enable_ocaml" = "xyes"],[ + AC_MSG_CHECKING([for caml_alloc_initialized_string]) + cat >conftest.c <<'EOF' +#include +int main () { char *p = (void *) caml_alloc_initialized_string; return 0; } +EOF + AS_IF([$OCAMLC conftest.c >&AS_MESSAGE_LOG_FD 2>&1],[ + AC_MSG_RESULT([yes]) + AC_DEFINE([HAVE_CAML_ALLOC_INITIALIZED_STRING],[1], + [caml_alloc_initialized_string found at compile time.]) + ],[ + AC_MSG_RESULT([no]) + ]) + rm -f conftest.c conftest.o +]) + +dnl For developing plugins in Rust, optional. +AC_CHECK_PROG([CARGO],[cargo],[cargo],[no]) +AC_ARG_ENABLE([rust], + [AS_HELP_STRING([--disable-rust], [disable Rust plugin])], + [], + [enable_rust=yes]) +AM_CONDITIONAL([HAVE_RUST], + [test "x$CARGO" != "xno" && test "x$enable_rust" != "xno"]) + +dnl Check for Ruby, for embedding in the Ruby plugin. +AC_CHECK_PROG([RUBY],[ruby],[ruby],[no]) +AC_ARG_ENABLE([ruby], + [AS_HELP_STRING([--disable-ruby], [disable Ruby plugin])], + [], + [enable_ruby=yes]) +AS_IF([test "x$RUBY" != "xno" && test "x$enable_ruby" != "xno"],[ + PKG_CHECK_MODULES([RUBY], [ruby], [ + AC_SUBST([RUBY_CFLAGS]) + AC_SUBST([RUBY_LIBS]) + ],[ + AC_MSG_WARN([ruby not found]) + enable_ruby=no + ]) +]) +AM_CONDITIONAL([HAVE_RUBY],[test "x$RUBY" != "xno" && + test "x$enable_ruby" = "xyes"]) + +dnl Check for Tcl, for embedding in the Tcl plugin. +AC_ARG_ENABLE([tcl], + [AS_HELP_STRING([--disable-tcl], [disable Tcl plugin])], + [], + [enable_tcl=yes]) +AS_IF([test "x$enable_tcl" != "xno"],[ + PKG_CHECK_MODULES([TCL], [tcl], [ + AC_SUBST([TCL_CFLAGS]) + AC_SUBST([TCL_LIBS]) + ],[ + AC_MSG_WARN([Tcl not found]) + enable_tcl=no + ]) +]) +AM_CONDITIONAL([HAVE_TCL],[test "x$enable_tcl" = "xyes"]) + +dnl Check for Lua, for embedding in the Lua plugin. +AC_ARG_ENABLE([lua], + [AS_HELP_STRING([--disable-lua], [disable Lua plugin])], + [], + [enable_lua=yes]) +AS_IF([test "x$enable_lua" != "xno"],[ + PKG_CHECK_MODULES([LUA], [lua], [ + AC_SUBST([LUA_CFLAGS]) + AC_SUBST([LUA_LIBS]) + + dnl Lua 5.1 used by RHEL 7 does not have lua_isinteger. + old_LIBS="$LIBS" + LIBS="$LUA_LIBS $LIBS" + AC_CHECK_FUNCS([lua_isinteger]) + LIBS="$old_LIBS" + ],[ + AC_MSG_WARN([Lua not found]) + enable_lua=no + ]) +]) +AM_CONDITIONAL([HAVE_LUA],[test "x$enable_lua" = "xyes"]) + +dnl Check for golang. +AC_ARG_ENABLE([golang], + AS_HELP_STRING([--disable-golang], [disable Go language plugin]), + [], + [enable_golang=yes]) +AS_IF([test "x$enable_golang" != "xno"],[ + AC_CHECK_PROG([GOLANG],[go],[go],[no]) + AS_IF([test "x$GOLANG" != "xno"],[ + AC_MSG_CHECKING([if $GOLANG is usable]) + AS_IF([$GOLANG run $srcdir/plugins/golang/config-test.go 2>&AS_MESSAGE_LOG_FD],[ + AC_MSG_RESULT([yes]) + + # Substitute some golang environment. + GOOS=`$GOLANG env GOOS` + GOARCH=`$GOLANG env GOARCH` + GOROOT=`$GOLANG env GOROOT` + AC_SUBST([GOOS]) + AC_SUBST([GOARCH]) + AC_SUBST([GOROOT]) + ],[ + AC_MSG_RESULT([no]) + AC_MSG_WARN([golang ($GOLANG) is installed but not usable]) + GOLANG=no + ]) + ]) +],[GOLANG=no]) +AM_CONDITIONAL([HAVE_GOLANG],[test "x$GOLANG" != "xno"]) + +dnl Check for curl (only if you want to compile the curl plugin). +AC_ARG_WITH([curl], + [AS_HELP_STRING([--without-curl], + [disable curl plugin @<:@default=check@:>@])], + [], + [with_curl=check]) +AS_IF([test "$with_curl" != "no"],[ + PKG_CHECK_MODULES([CURL], [libcurl],[ + AC_SUBST([CURL_CFLAGS]) + AC_SUBST([CURL_LIBS]) + AC_DEFINE([HAVE_CURL],[1],[curl found at compile time.]) + AC_CHECK_DECL([CURLOPT_UNIX_SOCKET_PATH], [ + AC_DEFINE([HAVE_CURLOPT_UNIX_SOCKET_PATH],[1], + [CURLOPT_UNIX_SOCKET_PATH found at compile time.]) + ], [], [#include ]) + ], + [AC_MSG_WARN([curl not found, curl plugin will be disabled])]) +]) +AM_CONDITIONAL([HAVE_CURL],[test "x$CURL_LIBS" != "x"]) + +dnl Check for libssh (only if you want to compile the ssh plugin). +AC_ARG_WITH([ssh], + [AS_HELP_STRING([--without-ssh], + [disable ssh plugin @<:@default=check@:>@])], + [], + [with_ssh=check]) +AS_IF([test "$with_ssh" != "no"],[ + PKG_CHECK_MODULES([SSH], [libssh >= 0.8.0],[ + AC_SUBST([SSH_CFLAGS]) + AC_SUBST([SSH_LIBS]) + ], + [AC_MSG_WARN([libssh not found, ssh plugin will be disabled])]) +]) +AM_CONDITIONAL([HAVE_SSH],[test "x$SSH_LIBS" != "x"]) + +dnl Check for genisoimage or mkisofs +dnl (only if you want to compile the iso plugin). +ISOPROG="no" +AC_ARG_WITH([iso], + [AS_HELP_STRING([--without-iso], + [disable iso plugin @<:@default=check@:>@])], + [], + [with_iso=check]) +AS_IF([test "$with_iso" != "no"],[ + AC_CHECK_PROG([GENISOIMAGE],[genisoimage],[genisoimage],[no]) + AC_CHECK_PROG([MKISOFS],[mkisofs],[mkisofs],[no]) + AS_IF([test "x$GENISOIMAGE" != "xno"],[ + ISOPROG="$GENISOIMAGE" + ],[ + AS_IF([test "x$MKISOFS" != "xno"],[ + ISOPROG="$MKISOFS" + ]) + ]) + AS_IF([test "x$ISOPROG" != "xno"],[ + AC_DEFINE_UNQUOTED([ISOPROG],["$ISOPROG"], + [Program used by iso plugin to make ISOs.]) + ]) +]) +AC_SUBST([ISOPROG]) +AM_CONDITIONAL([HAVE_ISO],[test "x$ISOPROG" != "xno"]) + +dnl Check for libvirt (only if you want to compile the libvirt plugin). +AC_ARG_WITH([libvirt], + [AS_HELP_STRING([--without-libvirt], + [disable libvirt plugin @<:@default=check@:>@])], + [], + [with_libvirt=check]) +AS_IF([test "$with_libvirt" != "no"],[ + PKG_CHECK_MODULES([LIBVIRT], [libvirt],[ + AC_SUBST([LIBVIRT_CFLAGS]) + AC_SUBST([LIBVIRT_LIBS]) + AC_DEFINE([HAVE_LIBVIRT],[1],[libvirt found at compile time.]) + ], + [AC_MSG_WARN([libvirt not found, libvirt plugin will be disabled])]) +]) +AM_CONDITIONAL([HAVE_LIBVIRT],[test "x$LIBVIRT_LIBS" != "x"]) + +dnl Check for zlib (only if you want to compile the gzip filter). +AC_ARG_WITH([zlib], + [AS_HELP_STRING([--without-zlib], + [disable gzip filter @<:@default=check@:>@])], + [], + [with_zlib=check]) +AS_IF([test "$with_zlib" != "no"],[ + PKG_CHECK_MODULES([ZLIB], [zlib >= 1.2.3.5],[ + AC_SUBST([ZLIB_CFLAGS]) + AC_SUBST([ZLIB_LIBS]) + AC_DEFINE([HAVE_ZLIB],[1],[zlib found at compile time.]) + ], + [AC_MSG_WARN([zlib >= 1.2.3.5 not found, gzip filter will be disabled])]) +]) +AM_CONDITIONAL([HAVE_ZLIB],[test "x$ZLIB_LIBS" != "x"]) + +dnl Check for libnbd (only if you want to compile the nbd plugin). +AC_ARG_WITH([libnbd], + [AS_HELP_STRING([--without-libnbd], + [disable nbd plugin @<:@default=check@:>@])], + [], + [with_libnbd=check]) +AS_IF([test "$with_libnbd" != "no"],[ + PKG_CHECK_MODULES([LIBNBD], [libnbd >= 0.9.8],[ + AC_SUBST([LIBNBD_CFLAGS]) + AC_SUBST([LIBNBD_LIBS]) + AC_DEFINE([HAVE_LIBNBD],[1],[libnbd found at compile time.]) + ], + [AC_MSG_WARN([libnbd >= 0.9.8 not found, nbd plugin will be crippled])]) +]) + +dnl For backwards compatibilty, we have a second way to disable the nbd plugin. +AC_ARG_ENABLE([nbd-plugin], + [AS_HELP_STRING([--disable-nbd-plugin], [disable nbd plugin (deprecated, use --without-libnbd)])], + [], + [enable_nbd_plugin=yes]) +AM_CONDITIONAL([HAVE_LIBNBD], + [test "x$LIBNBD_LIBS" != "x" && test "x$enable_nbd_plugin" = "xyes"]) + +dnl Check for liblzma (only if you want to compile the xz filter). +AC_ARG_WITH([liblzma], + [AS_HELP_STRING([--without-liblzma], + [disable xz filter @<:@default=check@:>@])], + [], + [with_liblzma=check]) +AS_IF([test "$with_liblzma" != "no"],[ + PKG_CHECK_MODULES([LIBLZMA], [liblzma],[ + AC_SUBST([LIBLZMA_CFLAGS]) + AC_SUBST([LIBLZMA_LIBS]) + AC_DEFINE([HAVE_LIBLZMA],[1],[liblzma found at compile time.]) + ], + [AC_MSG_WARN([liblzma not found, xz filter will be disabled])]) +]) +AM_CONDITIONAL([HAVE_LIBLZMA],[test "x$LIBLZMA_LIBS" != "x"]) + +dnl Check for zstd (only if you want to compile allocator=zstd). +AC_ARG_WITH([libzstd], + [AS_HELP_STRING([--without-libzstd], + [disable allocator=zstd @<:@default=check@:>@])], + [], + [with_libzstd=check]) +AS_IF([test "$with_libzstd" != "no"],[ + PKG_CHECK_MODULES([LIBZSTD], [libzstd],[ + AC_SUBST([LIBZSTD_CFLAGS]) + AC_SUBST([LIBZSTD_LIBS]) + AC_DEFINE([HAVE_LIBZSTD],[1],[libzstd found at compile time.]) + ], + [AC_MSG_WARN([libzstd not found, allocator=zstd will be disabled])]) +]) +AM_CONDITIONAL([HAVE_LIBZSTD],[test "x$LIBZSTD_LIBS" != "x"]) + +dnl Check for libguestfs (only for the guestfs plugin and the test suite). +AC_ARG_WITH([libguestfs], + [AS_HELP_STRING([--without-libguestfs], + [disable guestfs plugin and tests @<:@default=check@:>@])], + [], + [with_libguestfs=check]) +AS_IF([test "$with_libguestfs" != "no"],[ + PKG_CHECK_MODULES([LIBGUESTFS], [libguestfs],[ + # Although the library was found, we want to make sure it supports nbd + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ +#include + ]], [[ +#ifndef GUESTFS_ADD_DRIVE_OPTS_PROTOCOL +#error unsupported +#endif + ]])], [ + AC_SUBST([LIBGUESTFS_CFLAGS]) + AC_SUBST([LIBGUESTFS_LIBS]) + AC_DEFINE([HAVE_LIBGUESTFS],[1],[libguestfs found at compile time.]) + ],[ + LIBGUESTFS_LIBS= + AC_MSG_WARN([libguestfs too old, guestfs plugin and tests will be disabled])]) + ], + [AC_MSG_WARN([libguestfs not found, guestfs plugin and tests will be disabled])]) +]) +AM_CONDITIONAL([HAVE_LIBGUESTFS],[test "x$LIBGUESTFS_LIBS" != "x"]) + +dnl Check for guestfish (only needed for some of the tests). +AC_CHECK_PROG([GUESTFISH], [guestfish], [guestfish], [no]) +AM_CONDITIONAL([HAVE_GUESTFISH], [test "x$GUESTFISH" != "xno"]) + +dnl Check for ext2fs and com_err, for the ext2 filter. +AC_ARG_WITH([ext2], + [AS_HELP_STRING([--without-ext2], + [disable ext2 filter @<:@default=check@:>@])], + [], + [with_ext2=check]) +AS_IF([test "$with_ext2" != "no"], [ + PKG_CHECK_MODULES([EXT2FS], [ext2fs], [ + AC_SUBST([EXT2FS_CFLAGS]) + AC_SUBST([EXT2FS_LIBS]) + AC_DEFINE([HAVE_EXT2FS],[1],[ext2fs found at compile time.]) + ], + [AC_MSG_WARN([ext2fs not found, ext2 filter will be disabled])]) + PKG_CHECK_MODULES([COM_ERR], [com_err], [ + AC_SUBST([COM_ERR_CFLAGS]) + AC_SUBST([COM_ERR_LIBS]) + AC_DEFINE([HAVE_COM_ERR],[1],[com_err found at compile time.]) + ], + [AC_MSG_WARN([com_err not found, ext2 filter will be disabled])]) + + AC_CHECK_MEMBERS([struct struct_io_manager.cache_readahead, + struct struct_io_manager.zeroout]) +]) +AM_CONDITIONAL([HAVE_EXT2], + [test "x$EXT2FS_LIBS" != "x" && test "x$COM_ERR_LIBS" != "x"]) + +dnl libtorrent-rasterbar for the bittorrent plugin. +AC_ARG_ENABLE([torrent], + [AS_HELP_STRING([--disable-torrent], + [disable bittorrent plugin])], + [], + [enable_torrent=check] +) +AS_IF([test "$enable_torrent" != "xno"], [ + PKG_CHECK_MODULES([LIBTORRENT], [libtorrent-rasterbar], [ + AC_SUBST([LIBTORRENT_CFLAGS]) + AC_SUBST([LIBTORRENT_LIBS]) + ], + [AC_MSG_WARN([libtorrent-rasterbar not found, bittorrent plugin will be disabled])]) +]) +AM_CONDITIONAL([HAVE_TORRENT], + [test "x$have_cxx" = "xyes" && test "x$LIBTORRENT_LIBS" != "x"]) + +dnl Check if the user wants to disable VDDK support. +dnl See plugins/vddk/README.VDDK. +AC_ARG_ENABLE([vddk], + [AS_HELP_STRING([--disable-vddk], + [disable VMware VDDK plugin])], + [], + [ + dnl While VDDK was available on i686 in 5.1.1, we only support 5.5.5 + dnl and newer, which is supported only on x86-64. Don't compile on + dnl other platforms. + AC_MSG_CHECKING([if the host CPU is compatible with VDDK]) + AS_IF([test "$host_cpu" = "x86_64"],[ + AC_MSG_RESULT([yes ($host_cpu)]) + enable_vddk=yes + ],[ + AC_MSG_RESULT([no ($host_cpu)]) + enable_vddk=no + ]) + ]) +AM_CONDITIONAL([HAVE_VDDK], [test "x$enable_vddk" = "xyes"]) + +dnl Expose version information to the public headers +[NBDKIT_]VERSION_MAJOR=NBDKIT_VERSION_MAJOR +[NBDKIT_]VERSION_MINOR=NBDKIT_VERSION_MINOR +[NBDKIT_]VERSION_MICRO=NBDKIT_VERSION_MICRO +AC_SUBST([NBDKIT_VERSION_MAJOR]) +AC_SUBST([NBDKIT_VERSION_MINOR]) +AC_SUBST([NBDKIT_VERSION_MICRO]) + +dnl Produce output files. +AC_CONFIG_HEADERS([config.h]) +AC_CONFIG_FILES([podwrapper.pl], + [chmod +x,-w podwrapper.pl]) +AC_CONFIG_FILES([common/protocol/generate-protostrings.sh], + [chmod +x,-w common/protocol/generate-protostrings.sh]) +AC_CONFIG_FILES([Makefile + bash/Makefile + common/allocators/Makefile + common/bitmap/Makefile + common/gpt/Makefile + common/include/Makefile + common/protocol/Makefile + common/regions/Makefile + common/utils/Makefile + docs/Makefile + include/Makefile + include/nbdkit-version.h + plugins/Makefile + plugins/cc/Makefile + plugins/cdi/Makefile + plugins/curl/Makefile + plugins/data/Makefile + plugins/eval/Makefile + plugins/example1/Makefile + plugins/example2/Makefile + plugins/example3/Makefile + plugins/example4/Makefile + plugins/file/Makefile + plugins/floppy/Makefile + plugins/full/Makefile + plugins/golang/Makefile + plugins/guestfs/Makefile + plugins/gzip/Makefile + plugins/info/Makefile + plugins/iso/Makefile + plugins/libvirt/Makefile + plugins/linuxdisk/Makefile + plugins/lua/Makefile + plugins/memory/Makefile + plugins/nbd/Makefile + plugins/null/Makefile + plugins/ocaml/Makefile + plugins/ondemand/Makefile + plugins/partitioning/Makefile + plugins/pattern/Makefile + plugins/perl/Makefile + plugins/python/Makefile + plugins/random/Makefile + plugins/ruby/Makefile + plugins/rust/Makefile + plugins/sh/Makefile + plugins/ssh/Makefile + plugins/split/Makefile + plugins/streaming/Makefile + plugins/tar/Makefile + plugins/tcl/Makefile + plugins/tmpdisk/Makefile + plugins/torrent/Makefile + plugins/vddk/Makefile + plugins/zero/Makefile + filters/Makefile + filters/blocksize/Makefile + filters/cache/Makefile + filters/cacheextents/Makefile + filters/cow/Makefile + filters/ddrescue/Makefile + filters/delay/Makefile + filters/error/Makefile + filters/exitlast/Makefile + filters/ext2/Makefile + filters/extentlist/Makefile + filters/fua/Makefile + filters/gzip/Makefile + filters/ip/Makefile + filters/limit/Makefile + filters/log/Makefile + filters/nocache/Makefile + filters/noextents/Makefile + filters/nofilter/Makefile + filters/noparallel/Makefile + filters/nozero/Makefile + filters/offset/Makefile + filters/partition/Makefile + filters/pause/Makefile + filters/rate/Makefile + filters/readahead/Makefile + filters/retry/Makefile + filters/stats/Makefile + filters/swab/Makefile + filters/tar/Makefile + filters/tls-fallback/Makefile + filters/truncate/Makefile + filters/xz/Makefile + fuzzing/Makefile + server/local/nbdkit.pc + server/Makefile + server/nbdkit.pc + tests/functions.sh + tests/Makefile + valgrind/Makefile]) + +AC_OUTPUT + +dnl Summary. +echo +echo +echo "----------------------------------------------------------------------" +echo "Thank you for downloading $PACKAGE_STRING" +echo +echo "This is how we have configured the optional components for you today:" +echo + +feature () +{ + printf %s " $1" + shift + if "$@"; then echo "yes"; else echo "no"; fi +} + +echo "Optional server features:" +echo +feature "bash-completion ........................ " \ + test "x$HAVE_BASH_COMPLETION_TRUE" = "x" +feature "manual pages ........................... " \ + test "x$HAVE_POD_TRUE" = "x" +feature "SELinux ................................ " \ + test "x$LIBSELINUX_LIBS" != "x" +feature "TLS .................................... " \ + test "x$GNUTLS_LIBS" != "x" + +echo +echo "Optional plugins:" +echo +feature "curl ................................... " \ + test "x$HAVE_CURL_TRUE" = "x" +feature "example4 ............................... " \ + test "x$HAVE_PERL_TRUE" = "x" +feature "floppy ................................. " \ + test "x$HAVE_ICONV_TRUE" = "x" +feature "guestfs ................................ " \ + test "x$HAVE_LIBGUESTFS_TRUE" = "x" +feature "gzip ................................... " \ + test "x$HAVE_ZLIB_TRUE" = "x" +feature "iso .................................... " \ + test "x$HAVE_ISO_TRUE" = "x" +feature "libvirt ................................ " \ + test "x$HAVE_LIBVIRT_TRUE" = "x" +feature "linuxdisk .............................. " \ + test "x$HAVE_MKE2FS_WITH_D_TRUE" = "x" +feature "nbd .................................... " \ + test "x$HAVE_LIBNBD_TRUE" = "x" +feature "ssh .................................... " \ + test "x$HAVE_SSH_TRUE" = "x" +feature "torrent ................................ " \ + test "x$HAVE_TORRENT_TRUE" = "x" +feature "vddk ................................... " \ + test "x$HAVE_VDDK_TRUE" = "x" + +echo +echo "Languages:" +echo +feature "go ..................................... " \ + test "x$HAVE_GOLANG_TRUE" = "x" +feature "lua .................................... " \ + test "x$HAVE_LUA_TRUE" = "x" +feature "ocaml .................................. " \ + test "x$HAVE_OCAML_TRUE" = "x" +feature "perl ................................... " \ + test "x$HAVE_PERL_TRUE" = "x" +feature "python ................................. " \ + test "x$HAVE_PYTHON_TRUE" = "x" +feature "ruby ................................... " \ + test "x$HAVE_RUBY_TRUE" = "x" +feature "rust ................................... " \ + test "x$HAVE_RUST_TRUE" = "x" +feature "tcl .................................... " \ + test "x$HAVE_TCL_TRUE" = "x" + +echo +echo "Optional filters:" +echo +feature "ext2 ................................... " \ + test "x$HAVE_EXT2_TRUE" = "x" +feature "gzip ................................... " \ + test "x$HAVE_ZLIB_TRUE" = "x" +feature "xz ..................................... " \ + test "x$HAVE_LIBLZMA_TRUE" = "x" + +echo +echo "Other optional features:" +echo +feature "allocator=zstd ......................... " \ + test "x$HAVE_LIBZSTD_TRUE" = "x" + +echo +echo "If any optional component is configured ‘no’ when you expected ‘yes’" +echo "then you should check the preceding messages and README." +echo +echo "Please report bugs back to the mailing list:" +echo "http://www.redhat.com/mailman/listinfo/libguestfs" +echo +echo "Next you should type 'make' to build the package," +echo "then 'make check' to run the tests." diff --git a/depcomp b/depcomp new file mode 100755 index 0000000..65cbf70 --- /dev/null +++ b/depcomp @@ -0,0 +1,791 @@ +#! /bin/sh +# depcomp - compile a program generating dependencies as side-effects + +scriptversion=2018-03-07.03; # UTC + +# Copyright (C) 1999-2018 Free Software Foundation, Inc. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program that contains a +# configuration script generated by Autoconf, you may include it under +# the same distribution terms that you use for the rest of that program. + +# Originally written by Alexandre Oliva . + +case $1 in + '') + echo "$0: No command. Try '$0 --help' for more information." 1>&2 + exit 1; + ;; + -h | --h*) + cat <<\EOF +Usage: depcomp [--help] [--version] PROGRAM [ARGS] + +Run PROGRAMS ARGS to compile a file, generating dependencies +as side-effects. + +Environment variables: + depmode Dependency tracking mode. + source Source file read by 'PROGRAMS ARGS'. + object Object file output by 'PROGRAMS ARGS'. + DEPDIR directory where to store dependencies. + depfile Dependency file to output. + tmpdepfile Temporary file to use when outputting dependencies. + libtool Whether libtool is used (yes/no). + +Report bugs to . +EOF + exit $? + ;; + -v | --v*) + echo "depcomp $scriptversion" + exit $? + ;; +esac + +# Get the directory component of the given path, and save it in the +# global variables '$dir'. Note that this directory component will +# be either empty or ending with a '/' character. This is deliberate. +set_dir_from () +{ + case $1 in + */*) dir=`echo "$1" | sed -e 's|/[^/]*$|/|'`;; + *) dir=;; + esac +} + +# Get the suffix-stripped basename of the given path, and save it the +# global variable '$base'. +set_base_from () +{ + base=`echo "$1" | sed -e 's|^.*/||' -e 's/\.[^.]*$//'` +} + +# If no dependency file was actually created by the compiler invocation, +# we still have to create a dummy depfile, to avoid errors with the +# Makefile "include basename.Plo" scheme. +make_dummy_depfile () +{ + echo "#dummy" > "$depfile" +} + +# Factor out some common post-processing of the generated depfile. +# Requires the auxiliary global variable '$tmpdepfile' to be set. +aix_post_process_depfile () +{ + # If the compiler actually managed to produce a dependency file, + # post-process it. + if test -f "$tmpdepfile"; then + # Each line is of the form 'foo.o: dependency.h'. + # Do two passes, one to just change these to + # $object: dependency.h + # and one to simply output + # dependency.h: + # which is needed to avoid the deleted-header problem. + { sed -e "s,^.*\.[$lower]*:,$object:," < "$tmpdepfile" + sed -e "s,^.*\.[$lower]*:[$tab ]*,," -e 's,$,:,' < "$tmpdepfile" + } > "$depfile" + rm -f "$tmpdepfile" + else + make_dummy_depfile + fi +} + +# A tabulation character. +tab=' ' +# A newline character. +nl=' +' +# Character ranges might be problematic outside the C locale. +# These definitions help. +upper=ABCDEFGHIJKLMNOPQRSTUVWXYZ +lower=abcdefghijklmnopqrstuvwxyz +digits=0123456789 +alpha=${upper}${lower} + +if test -z "$depmode" || test -z "$source" || test -z "$object"; then + echo "depcomp: Variables source, object and depmode must be set" 1>&2 + exit 1 +fi + +# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po. +depfile=${depfile-`echo "$object" | + sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`} +tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`} + +rm -f "$tmpdepfile" + +# Avoid interferences from the environment. +gccflag= dashmflag= + +# Some modes work just like other modes, but use different flags. We +# parameterize here, but still list the modes in the big case below, +# to make depend.m4 easier to write. Note that we *cannot* use a case +# here, because this file can only contain one case statement. +if test "$depmode" = hp; then + # HP compiler uses -M and no extra arg. + gccflag=-M + depmode=gcc +fi + +if test "$depmode" = dashXmstdout; then + # This is just like dashmstdout with a different argument. + dashmflag=-xM + depmode=dashmstdout +fi + +cygpath_u="cygpath -u -f -" +if test "$depmode" = msvcmsys; then + # This is just like msvisualcpp but w/o cygpath translation. + # Just convert the backslash-escaped backslashes to single forward + # slashes to satisfy depend.m4 + cygpath_u='sed s,\\\\,/,g' + depmode=msvisualcpp +fi + +if test "$depmode" = msvc7msys; then + # This is just like msvc7 but w/o cygpath translation. + # Just convert the backslash-escaped backslashes to single forward + # slashes to satisfy depend.m4 + cygpath_u='sed s,\\\\,/,g' + depmode=msvc7 +fi + +if test "$depmode" = xlc; then + # IBM C/C++ Compilers xlc/xlC can output gcc-like dependency information. + gccflag=-qmakedep=gcc,-MF + depmode=gcc +fi + +case "$depmode" in +gcc3) +## gcc 3 implements dependency tracking that does exactly what +## we want. Yay! Note: for some reason libtool 1.4 doesn't like +## it if -MD -MP comes after the -MF stuff. Hmm. +## Unfortunately, FreeBSD c89 acceptance of flags depends upon +## the command line argument order; so add the flags where they +## appear in depend2.am. Note that the slowdown incurred here +## affects only configure: in makefiles, %FASTDEP% shortcuts this. + for arg + do + case $arg in + -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;; + *) set fnord "$@" "$arg" ;; + esac + shift # fnord + shift # $arg + done + "$@" + stat=$? + if test $stat -ne 0; then + rm -f "$tmpdepfile" + exit $stat + fi + mv "$tmpdepfile" "$depfile" + ;; + +gcc) +## Note that this doesn't just cater to obsosete pre-3.x GCC compilers. +## but also to in-use compilers like IMB xlc/xlC and the HP C compiler. +## (see the conditional assignment to $gccflag above). +## There are various ways to get dependency output from gcc. Here's +## why we pick this rather obscure method: +## - Don't want to use -MD because we'd like the dependencies to end +## up in a subdir. Having to rename by hand is ugly. +## (We might end up doing this anyway to support other compilers.) +## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like +## -MM, not -M (despite what the docs say). Also, it might not be +## supported by the other compilers which use the 'gcc' depmode. +## - Using -M directly means running the compiler twice (even worse +## than renaming). + if test -z "$gccflag"; then + gccflag=-MD, + fi + "$@" -Wp,"$gccflag$tmpdepfile" + stat=$? + if test $stat -ne 0; then + rm -f "$tmpdepfile" + exit $stat + fi + rm -f "$depfile" + echo "$object : \\" > "$depfile" + # The second -e expression handles DOS-style file names with drive + # letters. + sed -e 's/^[^:]*: / /' \ + -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile" +## This next piece of magic avoids the "deleted header file" problem. +## The problem is that when a header file which appears in a .P file +## is deleted, the dependency causes make to die (because there is +## typically no way to rebuild the header). We avoid this by adding +## dummy dependencies for each header file. Too bad gcc doesn't do +## this for us directly. +## Some versions of gcc put a space before the ':'. On the theory +## that the space means something, we add a space to the output as +## well. hp depmode also adds that space, but also prefixes the VPATH +## to the object. Take care to not repeat it in the output. +## Some versions of the HPUX 10.20 sed can't process this invocation +## correctly. Breaking it into two sed invocations is a workaround. + tr ' ' "$nl" < "$tmpdepfile" \ + | sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \ + | sed -e 's/$/ :/' >> "$depfile" + rm -f "$tmpdepfile" + ;; + +hp) + # This case exists only to let depend.m4 do its work. It works by + # looking at the text of this script. This case will never be run, + # since it is checked for above. + exit 1 + ;; + +sgi) + if test "$libtool" = yes; then + "$@" "-Wp,-MDupdate,$tmpdepfile" + else + "$@" -MDupdate "$tmpdepfile" + fi + stat=$? + if test $stat -ne 0; then + rm -f "$tmpdepfile" + exit $stat + fi + rm -f "$depfile" + + if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files + echo "$object : \\" > "$depfile" + # Clip off the initial element (the dependent). Don't try to be + # clever and replace this with sed code, as IRIX sed won't handle + # lines with more than a fixed number of characters (4096 in + # IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines; + # the IRIX cc adds comments like '#:fec' to the end of the + # dependency line. + tr ' ' "$nl" < "$tmpdepfile" \ + | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' \ + | tr "$nl" ' ' >> "$depfile" + echo >> "$depfile" + # The second pass generates a dummy entry for each header file. + tr ' ' "$nl" < "$tmpdepfile" \ + | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \ + >> "$depfile" + else + make_dummy_depfile + fi + rm -f "$tmpdepfile" + ;; + +xlc) + # This case exists only to let depend.m4 do its work. It works by + # looking at the text of this script. This case will never be run, + # since it is checked for above. + exit 1 + ;; + +aix) + # The C for AIX Compiler uses -M and outputs the dependencies + # in a .u file. In older versions, this file always lives in the + # current directory. Also, the AIX compiler puts '$object:' at the + # start of each line; $object doesn't have directory information. + # Version 6 uses the directory in both cases. + set_dir_from "$object" + set_base_from "$object" + if test "$libtool" = yes; then + tmpdepfile1=$dir$base.u + tmpdepfile2=$base.u + tmpdepfile3=$dir.libs/$base.u + "$@" -Wc,-M + else + tmpdepfile1=$dir$base.u + tmpdepfile2=$dir$base.u + tmpdepfile3=$dir$base.u + "$@" -M + fi + stat=$? + if test $stat -ne 0; then + rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" + exit $stat + fi + + for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" + do + test -f "$tmpdepfile" && break + done + aix_post_process_depfile + ;; + +tcc) + # tcc (Tiny C Compiler) understand '-MD -MF file' since version 0.9.26 + # FIXME: That version still under development at the moment of writing. + # Make that this statement remains true also for stable, released + # versions. + # It will wrap lines (doesn't matter whether long or short) with a + # trailing '\', as in: + # + # foo.o : \ + # foo.c \ + # foo.h \ + # + # It will put a trailing '\' even on the last line, and will use leading + # spaces rather than leading tabs (at least since its commit 0394caf7 + # "Emit spaces for -MD"). + "$@" -MD -MF "$tmpdepfile" + stat=$? + if test $stat -ne 0; then + rm -f "$tmpdepfile" + exit $stat + fi + rm -f "$depfile" + # Each non-empty line is of the form 'foo.o : \' or ' dep.h \'. + # We have to change lines of the first kind to '$object: \'. + sed -e "s|.*:|$object :|" < "$tmpdepfile" > "$depfile" + # And for each line of the second kind, we have to emit a 'dep.h:' + # dummy dependency, to avoid the deleted-header problem. + sed -n -e 's|^ *\(.*\) *\\$|\1:|p' < "$tmpdepfile" >> "$depfile" + rm -f "$tmpdepfile" + ;; + +## The order of this option in the case statement is important, since the +## shell code in configure will try each of these formats in the order +## listed in this file. A plain '-MD' option would be understood by many +## compilers, so we must ensure this comes after the gcc and icc options. +pgcc) + # Portland's C compiler understands '-MD'. + # Will always output deps to 'file.d' where file is the root name of the + # source file under compilation, even if file resides in a subdirectory. + # The object file name does not affect the name of the '.d' file. + # pgcc 10.2 will output + # foo.o: sub/foo.c sub/foo.h + # and will wrap long lines using '\' : + # foo.o: sub/foo.c ... \ + # sub/foo.h ... \ + # ... + set_dir_from "$object" + # Use the source, not the object, to determine the base name, since + # that's sadly what pgcc will do too. + set_base_from "$source" + tmpdepfile=$base.d + + # For projects that build the same source file twice into different object + # files, the pgcc approach of using the *source* file root name can cause + # problems in parallel builds. Use a locking strategy to avoid stomping on + # the same $tmpdepfile. + lockdir=$base.d-lock + trap " + echo '$0: caught signal, cleaning up...' >&2 + rmdir '$lockdir' + exit 1 + " 1 2 13 15 + numtries=100 + i=$numtries + while test $i -gt 0; do + # mkdir is a portable test-and-set. + if mkdir "$lockdir" 2>/dev/null; then + # This process acquired the lock. + "$@" -MD + stat=$? + # Release the lock. + rmdir "$lockdir" + break + else + # If the lock is being held by a different process, wait + # until the winning process is done or we timeout. + while test -d "$lockdir" && test $i -gt 0; do + sleep 1 + i=`expr $i - 1` + done + fi + i=`expr $i - 1` + done + trap - 1 2 13 15 + if test $i -le 0; then + echo "$0: failed to acquire lock after $numtries attempts" >&2 + echo "$0: check lockdir '$lockdir'" >&2 + exit 1 + fi + + if test $stat -ne 0; then + rm -f "$tmpdepfile" + exit $stat + fi + rm -f "$depfile" + # Each line is of the form `foo.o: dependent.h', + # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'. + # Do two passes, one to just change these to + # `$object: dependent.h' and one to simply `dependent.h:'. + sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile" + # Some versions of the HPUX 10.20 sed can't process this invocation + # correctly. Breaking it into two sed invocations is a workaround. + sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" \ + | sed -e 's/$/ :/' >> "$depfile" + rm -f "$tmpdepfile" + ;; + +hp2) + # The "hp" stanza above does not work with aCC (C++) and HP's ia64 + # compilers, which have integrated preprocessors. The correct option + # to use with these is +Maked; it writes dependencies to a file named + # 'foo.d', which lands next to the object file, wherever that + # happens to be. + # Much of this is similar to the tru64 case; see comments there. + set_dir_from "$object" + set_base_from "$object" + if test "$libtool" = yes; then + tmpdepfile1=$dir$base.d + tmpdepfile2=$dir.libs/$base.d + "$@" -Wc,+Maked + else + tmpdepfile1=$dir$base.d + tmpdepfile2=$dir$base.d + "$@" +Maked + fi + stat=$? + if test $stat -ne 0; then + rm -f "$tmpdepfile1" "$tmpdepfile2" + exit $stat + fi + + for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" + do + test -f "$tmpdepfile" && break + done + if test -f "$tmpdepfile"; then + sed -e "s,^.*\.[$lower]*:,$object:," "$tmpdepfile" > "$depfile" + # Add 'dependent.h:' lines. + sed -ne '2,${ + s/^ *// + s/ \\*$// + s/$/:/ + p + }' "$tmpdepfile" >> "$depfile" + else + make_dummy_depfile + fi + rm -f "$tmpdepfile" "$tmpdepfile2" + ;; + +tru64) + # The Tru64 compiler uses -MD to generate dependencies as a side + # effect. 'cc -MD -o foo.o ...' puts the dependencies into 'foo.o.d'. + # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put + # dependencies in 'foo.d' instead, so we check for that too. + # Subdirectories are respected. + set_dir_from "$object" + set_base_from "$object" + + if test "$libtool" = yes; then + # Libtool generates 2 separate objects for the 2 libraries. These + # two compilations output dependencies in $dir.libs/$base.o.d and + # in $dir$base.o.d. We have to check for both files, because + # one of the two compilations can be disabled. We should prefer + # $dir$base.o.d over $dir.libs/$base.o.d because the latter is + # automatically cleaned when .libs/ is deleted, while ignoring + # the former would cause a distcleancheck panic. + tmpdepfile1=$dir$base.o.d # libtool 1.5 + tmpdepfile2=$dir.libs/$base.o.d # Likewise. + tmpdepfile3=$dir.libs/$base.d # Compaq CCC V6.2-504 + "$@" -Wc,-MD + else + tmpdepfile1=$dir$base.d + tmpdepfile2=$dir$base.d + tmpdepfile3=$dir$base.d + "$@" -MD + fi + + stat=$? + if test $stat -ne 0; then + rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" + exit $stat + fi + + for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" + do + test -f "$tmpdepfile" && break + done + # Same post-processing that is required for AIX mode. + aix_post_process_depfile + ;; + +msvc7) + if test "$libtool" = yes; then + showIncludes=-Wc,-showIncludes + else + showIncludes=-showIncludes + fi + "$@" $showIncludes > "$tmpdepfile" + stat=$? + grep -v '^Note: including file: ' "$tmpdepfile" + if test $stat -ne 0; then + rm -f "$tmpdepfile" + exit $stat + fi + rm -f "$depfile" + echo "$object : \\" > "$depfile" + # The first sed program below extracts the file names and escapes + # backslashes for cygpath. The second sed program outputs the file + # name when reading, but also accumulates all include files in the + # hold buffer in order to output them again at the end. This only + # works with sed implementations that can handle large buffers. + sed < "$tmpdepfile" -n ' +/^Note: including file: *\(.*\)/ { + s//\1/ + s/\\/\\\\/g + p +}' | $cygpath_u | sort -u | sed -n ' +s/ /\\ /g +s/\(.*\)/'"$tab"'\1 \\/p +s/.\(.*\) \\/\1:/ +H +$ { + s/.*/'"$tab"'/ + G + p +}' >> "$depfile" + echo >> "$depfile" # make sure the fragment doesn't end with a backslash + rm -f "$tmpdepfile" + ;; + +msvc7msys) + # This case exists only to let depend.m4 do its work. It works by + # looking at the text of this script. This case will never be run, + # since it is checked for above. + exit 1 + ;; + +#nosideeffect) + # This comment above is used by automake to tell side-effect + # dependency tracking mechanisms from slower ones. + +dashmstdout) + # Important note: in order to support this mode, a compiler *must* + # always write the preprocessed file to stdout, regardless of -o. + "$@" || exit $? + + # Remove the call to Libtool. + if test "$libtool" = yes; then + while test "X$1" != 'X--mode=compile'; do + shift + done + shift + fi + + # Remove '-o $object'. + IFS=" " + for arg + do + case $arg in + -o) + shift + ;; + $object) + shift + ;; + *) + set fnord "$@" "$arg" + shift # fnord + shift # $arg + ;; + esac + done + + test -z "$dashmflag" && dashmflag=-M + # Require at least two characters before searching for ':' + # in the target name. This is to cope with DOS-style filenames: + # a dependency such as 'c:/foo/bar' could be seen as target 'c' otherwise. + "$@" $dashmflag | + sed "s|^[$tab ]*[^:$tab ][^:][^:]*:[$tab ]*|$object: |" > "$tmpdepfile" + rm -f "$depfile" + cat < "$tmpdepfile" > "$depfile" + # Some versions of the HPUX 10.20 sed can't process this sed invocation + # correctly. Breaking it into two sed invocations is a workaround. + tr ' ' "$nl" < "$tmpdepfile" \ + | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \ + | sed -e 's/$/ :/' >> "$depfile" + rm -f "$tmpdepfile" + ;; + +dashXmstdout) + # This case only exists to satisfy depend.m4. It is never actually + # run, as this mode is specially recognized in the preamble. + exit 1 + ;; + +makedepend) + "$@" || exit $? + # Remove any Libtool call + if test "$libtool" = yes; then + while test "X$1" != 'X--mode=compile'; do + shift + done + shift + fi + # X makedepend + shift + cleared=no eat=no + for arg + do + case $cleared in + no) + set ""; shift + cleared=yes ;; + esac + if test $eat = yes; then + eat=no + continue + fi + case "$arg" in + -D*|-I*) + set fnord "$@" "$arg"; shift ;; + # Strip any option that makedepend may not understand. Remove + # the object too, otherwise makedepend will parse it as a source file. + -arch) + eat=yes ;; + -*|$object) + ;; + *) + set fnord "$@" "$arg"; shift ;; + esac + done + obj_suffix=`echo "$object" | sed 's/^.*\././'` + touch "$tmpdepfile" + ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@" + rm -f "$depfile" + # makedepend may prepend the VPATH from the source file name to the object. + # No need to regex-escape $object, excess matching of '.' is harmless. + sed "s|^.*\($object *:\)|\1|" "$tmpdepfile" > "$depfile" + # Some versions of the HPUX 10.20 sed can't process the last invocation + # correctly. Breaking it into two sed invocations is a workaround. + sed '1,2d' "$tmpdepfile" \ + | tr ' ' "$nl" \ + | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \ + | sed -e 's/$/ :/' >> "$depfile" + rm -f "$tmpdepfile" "$tmpdepfile".bak + ;; + +cpp) + # Important note: in order to support this mode, a compiler *must* + # always write the preprocessed file to stdout. + "$@" || exit $? + + # Remove the call to Libtool. + if test "$libtool" = yes; then + while test "X$1" != 'X--mode=compile'; do + shift + done + shift + fi + + # Remove '-o $object'. + IFS=" " + for arg + do + case $arg in + -o) + shift + ;; + $object) + shift + ;; + *) + set fnord "$@" "$arg" + shift # fnord + shift # $arg + ;; + esac + done + + "$@" -E \ + | sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \ + -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \ + | sed '$ s: \\$::' > "$tmpdepfile" + rm -f "$depfile" + echo "$object : \\" > "$depfile" + cat < "$tmpdepfile" >> "$depfile" + sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile" + rm -f "$tmpdepfile" + ;; + +msvisualcpp) + # Important note: in order to support this mode, a compiler *must* + # always write the preprocessed file to stdout. + "$@" || exit $? + + # Remove the call to Libtool. + if test "$libtool" = yes; then + while test "X$1" != 'X--mode=compile'; do + shift + done + shift + fi + + IFS=" " + for arg + do + case "$arg" in + -o) + shift + ;; + $object) + shift + ;; + "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI") + set fnord "$@" + shift + shift + ;; + *) + set fnord "$@" "$arg" + shift + shift + ;; + esac + done + "$@" -E 2>/dev/null | + sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile" + rm -f "$depfile" + echo "$object : \\" > "$depfile" + sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::'"$tab"'\1 \\:p' >> "$depfile" + echo "$tab" >> "$depfile" + sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile" + rm -f "$tmpdepfile" + ;; + +msvcmsys) + # This case exists only to let depend.m4 do its work. It works by + # looking at the text of this script. This case will never be run, + # since it is checked for above. + exit 1 + ;; + +none) + exec "$@" + ;; + +*) + echo "Unknown depmode $depmode" 1>&2 + exit 1 + ;; +esac + +exit 0 + +# Local Variables: +# mode: shell-script +# sh-indentation: 2 +# eval: (add-hook 'before-save-hook 'time-stamp) +# time-stamp-start: "scriptversion=" +# time-stamp-format: "%:y-%02m-%02d.%02H" +# time-stamp-time-zone: "UTC0" +# time-stamp-end: "; # UTC" +# End: diff --git a/docs/Makefile.am b/docs/Makefile.am new file mode 100644 index 0000000..4bd0b36 --- /dev/null +++ b/docs/Makefile.am @@ -0,0 +1,222 @@ +# nbdkit +# Copyright (C) 2013-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = \ + make-links.sh \ + nbdkit.pod \ + nbdkit-captive.pod \ + nbdkit-client.pod \ + nbdkit-loop.pod \ + nbdkit-probing.pod \ + nbdkit-protocol.pod \ + nbdkit-release-notes-1.4.pod \ + nbdkit-release-notes-1.6.pod \ + nbdkit-release-notes-1.8.pod \ + nbdkit-release-notes-1.10.pod \ + nbdkit-release-notes-1.12.pod \ + nbdkit-release-notes-1.14.pod \ + nbdkit-release-notes-1.16.pod \ + nbdkit-release-notes-1.18.pod \ + nbdkit-release-notes-1.20.pod \ + nbdkit-release-notes-1.22.pod \ + nbdkit-security.pod \ + nbdkit-service.pod \ + nbdkit-tls.pod \ + nbdkit-plugin.pod \ + nbdkit-filter.pod \ + synopsis.txt \ + $(NULL) + +if HAVE_POD + +man_MANS = \ + nbdkit.1 \ + nbdkit-captive.1 \ + nbdkit-client.1 \ + nbdkit-loop.1 \ + nbdkit-probing.1 \ + nbdkit-protocol.1 \ + nbdkit-release-notes-1.4.1 \ + nbdkit-release-notes-1.6.1 \ + nbdkit-release-notes-1.8.1 \ + nbdkit-release-notes-1.10.1 \ + nbdkit-release-notes-1.12.1 \ + nbdkit-release-notes-1.14.1 \ + nbdkit-release-notes-1.16.1 \ + nbdkit-release-notes-1.18.1 \ + nbdkit-release-notes-1.20.1 \ + nbdkit-release-notes-1.22.1 \ + nbdkit-security.1 \ + nbdkit-service.1 \ + nbdkit-tls.1 \ + nbdkit-plugin.3 \ + nbdkit-filter.3 \ + $(NULL) +CLEANFILES += $(man_MANS) + +nbdkit.1: nbdkit.pod plugin-links.pod lang-plugin-links.pod filter-links.pod \ + synopsis.txt + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + --insert plugin-links.pod:__PLUGIN_LINKS__ \ + --insert lang-plugin-links.pod:__LANG_PLUGIN_LINKS__ \ + --insert filter-links.pod:__FILTER_LINKS__ \ + --verbatim $(srcdir)/synopsis.txt:__SYNOPSIS__ \ + $< + +nbdkit-captive.1: nbdkit-captive.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +nbdkit-client.1: nbdkit-client.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +nbdkit-loop.1: nbdkit-loop.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +nbdkit-probing.1: nbdkit-probing.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +nbdkit-protocol.1: nbdkit-protocol.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +nbdkit-release-notes-1.4.1: nbdkit-release-notes-1.4.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +nbdkit-release-notes-1.6.1: nbdkit-release-notes-1.6.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +nbdkit-release-notes-1.8.1: nbdkit-release-notes-1.8.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +nbdkit-release-notes-1.10.1: nbdkit-release-notes-1.10.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +nbdkit-release-notes-1.12.1: nbdkit-release-notes-1.12.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +nbdkit-release-notes-1.14.1: nbdkit-release-notes-1.14.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +nbdkit-release-notes-1.16.1: nbdkit-release-notes-1.16.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +nbdkit-release-notes-1.18.1: nbdkit-release-notes-1.18.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +nbdkit-release-notes-1.20.1: nbdkit-release-notes-1.20.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +nbdkit-release-notes-1.22.1: nbdkit-release-notes-1.22.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +nbdkit-security.1: nbdkit-security.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +nbdkit-service.1: nbdkit-service.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +nbdkit-tls.1: nbdkit-tls.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +nbdkit-plugin.3: nbdkit-plugin.pod plugin-links.pod lang-plugin-links.pod + $(PODWRAPPER) --section=3 --man $@ \ + --html $(top_builddir)/html/$@.html \ + --insert plugin-links.pod:__PLUGIN_LINKS__ \ + --insert lang-plugin-links.pod:__LANG_PLUGIN_LINKS__ \ + $< + +nbdkit-filter.3: nbdkit-filter.pod filter-links.pod + $(PODWRAPPER) --section=3 --man $@ \ + --html $(top_builddir)/html/$@.html \ + --insert filter-links.pod:__FILTER_LINKS__ \ + $< + +endif HAVE_POD + +# All plugins. +plugin-links.pod: $(top_srcdir)/configure.ac + rm -f $@ $@-t + $(srcdir)/make-links.sh plugin 1 $(non_lang_plugins) > $@-t + echo \; >> $@-t + $(srcdir)/make-links.sh plugin 3 $(lang_plugins) >> $@-t + mv $@-t $@ + +# Only language plugins (in section 3). +lang-plugin-links.pod: $(top_srcdir)/configure.ac + rm -f $@ $@-t + $(srcdir)/make-links.sh plugin 3 $(lang_plugins) >> $@-t + mv $@-t $@ + +# All filters. +filter-links.pod: $(top_srcdir)/configure.ac + rm -f $@ $@-t + $(srcdir)/make-links.sh filter 1 $(filters) > $@-t + mv $@-t $@ + +DISTCLEANFILES = plugin-links.pod lang-plugin-links.pod filter-links.pod diff --git a/docs/Makefile.in b/docs/Makefile.in new file mode 100644 index 0000000..1be54e5 --- /dev/null +++ b/docs/Makefile.in @@ -0,0 +1,913 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2013-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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+@HAVE_POD_TRUE@ --insert lang-plugin-links.pod:__LANG_PLUGIN_LINKS__ \ +@HAVE_POD_TRUE@ --insert filter-links.pod:__FILTER_LINKS__ \ +@HAVE_POD_TRUE@ --verbatim $(srcdir)/synopsis.txt:__SYNOPSIS__ \ +@HAVE_POD_TRUE@ $< + +@HAVE_POD_TRUE@nbdkit-captive.1: nbdkit-captive.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +@HAVE_POD_TRUE@nbdkit-client.1: nbdkit-client.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +@HAVE_POD_TRUE@nbdkit-loop.1: nbdkit-loop.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +@HAVE_POD_TRUE@nbdkit-probing.1: nbdkit-probing.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +@HAVE_POD_TRUE@nbdkit-protocol.1: 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+@HAVE_POD_TRUE@nbdkit-release-notes-1.12.1: nbdkit-release-notes-1.12.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +@HAVE_POD_TRUE@nbdkit-release-notes-1.14.1: nbdkit-release-notes-1.14.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +@HAVE_POD_TRUE@nbdkit-release-notes-1.16.1: nbdkit-release-notes-1.16.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +@HAVE_POD_TRUE@nbdkit-release-notes-1.18.1: nbdkit-release-notes-1.18.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +@HAVE_POD_TRUE@nbdkit-release-notes-1.20.1: nbdkit-release-notes-1.20.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +@HAVE_POD_TRUE@nbdkit-release-notes-1.22.1: nbdkit-release-notes-1.22.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +@HAVE_POD_TRUE@nbdkit-security.1: nbdkit-security.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +@HAVE_POD_TRUE@nbdkit-service.1: nbdkit-service.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +@HAVE_POD_TRUE@nbdkit-tls.1: nbdkit-tls.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +@HAVE_POD_TRUE@nbdkit-plugin.3: nbdkit-plugin.pod plugin-links.pod lang-plugin-links.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=3 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ --insert plugin-links.pod:__PLUGIN_LINKS__ \ +@HAVE_POD_TRUE@ --insert lang-plugin-links.pod:__LANG_PLUGIN_LINKS__ \ +@HAVE_POD_TRUE@ $< + +@HAVE_POD_TRUE@nbdkit-filter.3: nbdkit-filter.pod filter-links.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=3 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ --insert filter-links.pod:__FILTER_LINKS__ \ +@HAVE_POD_TRUE@ $< + +# All plugins. +plugin-links.pod: $(top_srcdir)/configure.ac + rm -f $@ $@-t + $(srcdir)/make-links.sh plugin 1 $(non_lang_plugins) > $@-t + echo \; >> $@-t + $(srcdir)/make-links.sh plugin 3 $(lang_plugins) >> $@-t + mv $@-t $@ + +# Only language plugins (in section 3). +lang-plugin-links.pod: $(top_srcdir)/configure.ac + rm -f $@ $@-t + $(srcdir)/make-links.sh plugin 3 $(lang_plugins) >> $@-t + mv $@-t $@ + +# All filters. +filter-links.pod: $(top_srcdir)/configure.ac + rm -f $@ $@-t + $(srcdir)/make-links.sh filter 1 $(filters) > $@-t + mv $@-t $@ + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/docs/make-links.sh b/docs/make-links.sh new file mode 100755 index 0000000..2827540 --- /dev/null +++ b/docs/make-links.sh @@ -0,0 +1,46 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Turn a list of plugins or filters into a comma-separated +# list of POD links. +# eg: +# ./make-links.sh plugin 1 foo bar +# --> L, L + +type="$1" +section="$2" +shift 2 +for (( i = 1; i <= $#; ++i )); do + printf %s "L" + if [ "$i" -lt "$#" ]; then printf %s , ; fi + echo +done diff --git a/docs/nbdkit-captive.pod b/docs/nbdkit-captive.pod new file mode 100644 index 0000000..eb95123 --- /dev/null +++ b/docs/nbdkit-captive.pod @@ -0,0 +1,168 @@ +=head1 NAME + +nbdkit-captive - run nbdkit under another process and have it +reliably cleaned up + +=head1 SYNOPSIS + + nbdkit PLUGIN [...] [-e|--exportname EXPORTNAME] --run "CMD ARGS ..." + + nbdkit --exit-with-parent PLUGIN [...] + +=head1 DESCRIPTION + +You can run nbdkit under another process and have nbdkit reliably +clean up. There are two techniques depending on whether you want +nbdkit to start the other process (L), or if you want +the other process to start nbdkit (L). Another way +is to have nbdkit exit after the last client connection, see +L. + +=head1 CAPTIVE NBDKIT + +You can run nbdkit as a "captive process", using the I<--run> option. +This means that nbdkit runs as long as (for example) L or +L is running. When those exit, nbdkit is killed. + +Some examples should make this clear. + +To run nbdkit captive under qemu: + + nbdkit file disk.img --run 'qemu -drive file=$nbd,if=virtio' + +On the qemu command line, C<$nbd> is substituted automatically with +the right NBD path so it can connect to nbdkit. When qemu exits, +nbdkit is killed and cleaned up automatically. + +Running nbdkit captive under guestfish: + + nbdkit file disk.img --run 'guestfish --format=raw -a $nbd -i' + +When guestfish exits, nbdkit is killed. + +Running nbdkit captive under nbdsh for unit testing: + + nbdkit -U - memory 1 --run 'nbdsh -u "$uri" -c "print(h.pread(1, 0))"' + +The following shell variables are available in the I<--run> argument: + +=over 4 + +=item C<$uri> + +A URI that refers to the nbdkit port or socket in the preferred form +documented by the NBD project. As this variable may contain a bare +C for Unix sockets, it is safest to use $uri within double quotes +to avoid unintentional globbing. For plugins that support distinct +data based on export names, the B<-e> option to nbdkit controls which +export name will be set in the URI. + +=item C<$nbd> + +An older URL that refers to the nbdkit port or socket in a manner +specific to certain tools. + +Note there is some magic here, since qemu and guestfish URLs have a +different format, so nbdkit tries to guess which you are running. If +the magic doesn't work, try using the variables below instead. + +=item C<$port> + +If E "", the port number that nbdkit is listening on. + +=item C<$unixsocket> + +If E "", the Unix domain socket that nbdkit is listening on. + +=item C<$exportname> + +The export name (which may be "") that the process should use when +connecting to nbdkit, as set by the B<-e> (B<--exportname>) command +line option of nbdkit. This only matters to plugins that +differentiate what they serve based on the export name requested by +the client. + +=back + +I<--run> implies I<--foreground>. It is not possible, and probably +not desirable, to have nbdkit fork into the background when using +I<--run>. + +Even when running captive, nbdkit still listens on the regular TCP/IP +port, unless you specify the I<-p>/I<-U> options. If you want a truly +private captive nbdkit, then you should create a private random +Unix socket, like this: + + nbdkit -U - plugin [args] --run '...' + +=head2 Copying data in and out of plugins with captive nbdkit + +Captive nbdkit + L can be used to copy data into and out +of nbdkit plugins. For example L contains +an embedded disk image. To copy it out: + + nbdkit -U - example1 --run 'qemu-img convert $nbd disk.img' + +If plugin requests have a high overhead (for example making HTTP +requests to a remote server), adding L may +help performance: + + nbdkit -U - --filter=readahead curl https://example.com/disk.img \ + --run 'qemu-img convert $nbd disk.img' + +If the source suffers from temporary network failures +L may help. + +To overwrite a file inside an uncompressed tar file (the file being +overwritten must be the same size), use L like +this: + + nbdkit -U - file data.tar --filter=tar tar-entry=disk.img \ + --run 'qemu-img convert -n disk.img $nbd' + +=head1 EXIT WITH PARENT + +The I<--exit-with-parent> option is almost the opposite of +L described in the previous section. + +Running nbdkit with this option, for example from a script: + + nbdkit --exit-with-parent plugin ... & + +means that nbdkit will exit automatically if the parent program exits +for any reason. This can be used to avoid complicated cleanups or +orphaned nbdkit processes. + +I<--exit-with-parent> is incompatible with forking into the background +(because when we fork into the background we lose track of the parent +process). Therefore I<-f> / I<--foreground> is implied. + +This is currently implemented using a non-POSIX feature available in +S and S, so it won't work on other +operating systems (patches welcome to make it work). + +If the parent application is multithreaded, then (in the Linux +implementation) if the parent I exits, that will cause nbdkit +to exit. Thus in multithreaded applications you usually want to run +C only from the main thread (unless you +actually want nbdkit to exit with the thread, but that may not work +reliably on all operating systems). + +=head1 SEE ALSO + +L, +L, +L (on Linux), +L (on FreeBSD). + +=head1 AUTHORS + +Eric Blake + +Richard W.M. Jones + +Pino Toscano + +=head1 COPYRIGHT + +Copyright (C) 2013-2020 Red Hat Inc. diff --git a/docs/nbdkit-client.pod b/docs/nbdkit-client.pod new file mode 100644 index 0000000..efa7742 --- /dev/null +++ b/docs/nbdkit-client.pod @@ -0,0 +1,88 @@ +=head1 NAME + +nbdkit-service - how to mount NBD filesystems on a client machine + +=head1 DESCRIPTION + +For NBD exports that contain filesystems there are several approaches +to mounting them on a client machine. + +To ensure the nbd kernel module is loaded you may need to do: + + # echo nbd > /etc/modules-load.d/nbd.conf + +This will not take effect until you reboot, so also do: + + # modprobe nbd + +=head2 Easy mounting at boot time + +For simple setups the following method is the easiest way to get an +NBD filesystem to mount at boot. Create or edit F or +F: + + #!/bin/sh - + nm-online + modprobe nbd + nbd-client server /dev/nbd0 + mount /dev/nbd0 /mnt + +=head2 Mounting using systemd mount points + +You can use systemd mount points to mount NBD filesystems at boot +and/or on demand. + +Set up an L mapping. If F doesn't exist, then +create it first. Add this line: + + nbd0 server / bs=512,persist + +As a workaround for +L you must +currently modify the F file: + + # cp /usr/lib/systemd/system/nbd@.service /etc/systemd/system/ + # vi /etc/systemd/system/nbd@.service + +and edit or create these settings in the C<[Service]> section: + + [Service] + Type=oneshot + RemainAfterExit=yes + ExecStart=/usr/sbin/nbd-client %i + ExecStop=/usr/sbin/nbd-client -d /dev/%i + +Finally create a systemd mount file called +F: + + [Unit] + Requires=nbd@nbd0.service + [Mount] + What=/dev/nbd0 + Where=/mnt + Type=ext4 + +You can either reboot now or do: + + # systemctl start mnt.mount + +Other systemd services which need this mount point can depend on this +mount unit. + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2013-2020 Red Hat Inc. diff --git a/docs/nbdkit-filter.pod b/docs/nbdkit-filter.pod new file mode 100644 index 0000000..0c18318 --- /dev/null +++ b/docs/nbdkit-filter.pod @@ -0,0 +1,983 @@ +=head1 NAME + +nbdkit-filter - how to write nbdkit filters + +=head1 SYNOPSIS + + #include + + static int + myfilter_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) + { + if (strcmp (key, "myparameter") == 0) { + // ... + return 0; + } + else { + // pass through to next filter or plugin + return next (nxdata, key, value); + } + } + + static struct nbdkit_filter filter = { + .name = "filter", + .config = myfilter_config, + /* etc */ + }; + + NBDKIT_REGISTER_FILTER(filter) + +When this has been compiled to a shared library, do: + + nbdkit [--args ...] --filter=./myfilter.so plugin [key=value ...] + +When debugging, use the I<-fv> options: + + nbdkit -fv --filter=./myfilter.so plugin [key=value ...] + +=head1 DESCRIPTION + +One or more nbdkit filters can be placed in front of an nbdkit plugin +to modify the behaviour of the plugin. This manual page describes how +to create an nbdkit filter. + +Filters can be used for example to limit requests to an offset/limit, +add copy-on-write support, or inject delays or errors (for testing). + +Different filters can be stacked: + + NBD ┌─────────┐ ┌─────────┐ ┌────────┐ + client ───▶│ filter1 │───▶│ filter2 │── ─ ─ ──▶│ plugin │ + request └─────────┘ └─────────┘ └────────┘ + +Each filter intercepts plugin functions (see L) and +can call the next filter or plugin in the chain, modifying parameters, +calling before the filter function, in the middle or after. Filters +may even short-cut the chain. As an example, to process its own +parameters the filter can intercept the C<.config> method: + + static int + myfilter_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) + { + if (strcmp (key, "myparameter") == 0) { + // ... + // here you would handle this key, value + // ... + return 0; + } + else { + // pass through to next filter or plugin + return next (nxdata, key, value); + } + } + + static struct nbdkit_filter filter = { + // ... + .config = myfilter_config, + // ... + }; + +The call to C calls the C<.config> method of the +next filter or plugin in the chain. In the example above any +instances of C on the command line would not be seen +by the plugin. + +To see example filters: +L + +Filters must be written in C. + +Unlike plugins, where we provide a stable ABI guarantee that permits +operation across version differences, filters can only be run with the +same version of nbdkit that they were compiled with. The reason for +this is two-fold: the filter API includes access to struct +nbdkit_next_ops that is likely to change if new callbacks are added +(old nbdkit cannot safely run new filters that access new methods); +and if we added new methods then an old filter would not see them and +so they would be passed unmodified through the filter, and in some +cases that leads to data corruption (new nbdkit cannot safely run old +filters unaware of new methods). Therefore, unlike plugins, you +should not expect to distribute filters separately from nbdkit. + +=head1 C<#include Enbdkit-filter.hE> + +All filters should start by including this header file. + +=head1 C + +All filters must define and register one C, +which contains the name of the filter and pointers to plugin methods +that the filter wants to intercept. + + static struct nbdkit_filter filter = { + .name = "filter", + .longname = "My Filter", + .description = "This is my great filter for nbdkit", + .config = myfilter_config, + /* etc */ + }; + + NBDKIT_REGISTER_FILTER(filter) + +The C<.name> field is the name of the filter. This is the only field +which is required. + +=head1 NEXT PLUGIN + +F defines some function types (C, +C, C, +C, C, +C, C) and a structure +called C. These abstract the next plugin or +filter in the chain. There is also an opaque pointer C which +must be passed along when calling these functions. The value of +C passed to C<.open> has a stable lifetime that lasts to the +corresponding C<.close>, with all intermediate functions (such as +C<.pread>) receiving the same value for convenience; the only +exceptions where C is not reused are C<.config>, +C<.config_complete>, C<.get_ready>, C<.after_fork>, C<.preconnect> and +C<.list_exports>, which are called outside the lifetime of a +connection. + +=head2 Next config, open and close + +The filter’s C<.config>, C<.config_complete>, C<.get_ready>, +C<.after_fork> and C<.open> methods may only call the next C<.config>, +C<.config_complete>, C<.get_ready>, C<.after_fork> and C<.open> method +in the chain (optionally for C<.config>). + +The filter’s C<.close> method is called when an old connection closed, +and this has no C parameter because it cannot be +short-circuited. + +=head2 C + +The filter’s other methods like C<.prepare>, C<.get_size>, C<.pread> +etc ― always called in the context of a connection ― are passed a +pointer to C which contains a comparable set +of accessors to plugin methods that can be called during a connection. +The C parameter is stable between C<.prepare> and +C<.finalize>; intermediate functions (such as C<.pread>) receive the +same value for convenience. + +It is possible for a filter to issue (for example) extra +Cpread> calls in response to a single C<.pwrite> call. + +Note that the semantics of the functions in C +are slightly different from what a plugin implements: for example, +when a plugin's C<.pread> returns -1 on error, the error value to +advertise to the client is implicit (via the plugin calling +C or setting C), whereas +Cpread> exposes this via an explicit parameter, +allowing a filter to learn or modify this error if desired. + +There is also a Creopen> function which is used by +L to close and reopen the underlying plugin. +It should be used with caution because it is difficult to use safely. + +=head2 Other considerations + +You can modify parameters when you call the C function. However +be careful when modifying strings because for some methods +(eg. C<.config>) the plugin may save the string pointer that you pass +along. So you may have to ensure that the string is not freed for the +lifetime of the server. + +Note that if your filter registers a callback but in that callback it +doesn't call the C function then the corresponding method in the +plugin will never be called. In particular, your C<.open> method, if +you have one, B call the C<.next> method. + +=head1 CALLBACKS + +C has some static fields describing the filter +and optional callback functions which can be used to intercept plugin +methods. + +=head2 C<.name> + + const char *name; + +This field (a string) is required, and B contain only ASCII +alphanumeric characters or non-leading dashes, and be unique amongst +all filters. + +=head2 C<.longname> + + const char *longname; + +An optional free text name of the filter. This field is used in error +messages. + +=head2 C<.description> + + const char *description; + +An optional multi-line description of the filter. + +=head2 C<.load> + + void load (void); + +This is called once just after the filter is loaded into memory. You +can use this to perform any global initialization needed by the +filter. + +=head2 C<.unload> + + void unload (void); + +This may be called once just before the filter is unloaded from +memory. Note that it's not guaranteed that C<.unload> will always be +called (eg. the server might be killed or segfault), so you should try +to make the filter as robust as possible by not requiring cleanup. +See also L. + +=head2 C<.config> + + int (*config) (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value); + +This intercepts the plugin C<.config> method and can be used by the +filter to parse its own command line parameters. You should try to +make sure that command line parameter keys that the filter uses do not +conflict with ones that could be used by a plugin. + +If there is an error, C<.config> should call C with an +error message and return C<-1>. + +=head2 C<.config_complete> + + int (*config_complete) (nbdkit_next_config_complete *next, void *nxdata); + +This intercepts the plugin C<.config_complete> method and can be used +to ensure that all parameters needed by the filter were supplied on +the command line. + +If there is an error, C<.config_complete> should call C +with an error message and return C<-1>. + +=head2 C<.config_help> + + const char *config_help; + +This optional multi-line help message should summarize any +C parameters that it takes. It does I need to repeat +what already appears in C<.description>. + +If the filter doesn't take any config parameters you should probably +omit this. + +=head2 C<.thread_model> + + int (*thread_model) (void); + +Filters may tighten (but not relax) the thread model of the plugin, by +defining this callback. Note that while plugins use a compile-time +definition of C, filters do not need to declare a model +at compile time; instead, this callback is called after +C<.config_complete> and before any connections are created. See +L for a discussion of thread models. + +The final thread model used by nbdkit is the smallest (ie. most +serialized) out of all the filters and the plugin, and applies for all +connections. Requests for a model larger than permitted by the plugin +are silently ignored. It is acceptable for decisions made during +C<.config> and C<.config_complete> to determine which model to +request. + +This callback is optional; if it is not present, the filter must be +written to handle fully parallel requests, including when multiple +requests are issued in parallel on the same connection, similar to a +plugin requesting C. This ensures the +filter doesn't slow down other filters or plugins. + +If there is an error, C<.thread_model> should call C +with an error message and return C<-1>. + +=head2 C<.get_ready> + + int (*get_ready) (nbdkit_next_get_ready *next, void *nxdata, + int thread_model); + +This intercepts the plugin C<.get_ready> method and can be used by the +filter to get ready to serve requests. + +The C parameter informs the filter about the final +thread model chosen by nbdkit after considering the results of +C<.thread_model> of all filters in the chain after +C<.config_complete>. This does not need to be passed on to C, +as the model can no longer be altered at this point. + +If there is an error, C<.get_ready> should call C with +an error message and return C<-1>. + +=head2 C<.after_fork> + + int (*after_fork) (nbdkit_next_after_fork *next, void *nxdata); + +This intercepts the plugin C<.after_fork> method and can be used by +the filter to start background threads (although these have limited +usefulness since they will not be able to access the plugin). + +If there is an error, C<.after_fork> should call C with +an error message and return C<-1>. + +=head2 C<.preconnect> + + int (*preconnect) (nbdkit_next_preconnect *next, void *nxdata, + int readonly); + +This intercepts the plugin C<.preconnect> method and can be used to +filter access to the server. + +If there is an error, C<.preconnect> should call C with +an error message and return C<-1>. + +=head2 C<.list_exports> + + int (*list_exports) (nbdkit_next_list_exports *next, void *nxdata, + int readonly, int default_only, + struct nbdkit_exports *exports); + +This intercepts the plugin C<.list_exports> method and can be used to +filter which exports are advertised. In S plugins return +just a default export called C<"">. In S we plan to +allow plugins to control the list of exports and default export +advertised. + +It is possible for filters to transform the exports list received back +from the layer below. Without error checking it would look like this: + + myfilter_list_exports (...) + { + size_t i; + struct nbdkit_exports *exports2; + struct nbdkit_export e; + char *name, *desc; + + exports2 = nbdkit_exports_new (default_only); + next_list_exports (nxdata, readonly, default_only, exports); + for (i = 0; i < nbdkit_exports_count (exports2); ++i) { + e = nbdkit_get_export (exports2, i); + name = adjust (e.name); + desc = adjust (e.desc); + nbdkit_add_export (exports, name, desc); + free (name); + free (desc); + } + nbdkit_exports_free (exports2); + } + +If there is an error, C<.list_exports> should call C with +an error message and return C<-1>. + +=head3 Allocating and freeing nbdkit_exports list + +Two functions are provided to filters only for allocating and freeing +the list: + + struct nbdkit_exports *nbdkit_exports_new (int default_only); + +Allocates and returns a new, empty exports list. The C +parameter should match whether the list is intended to grab the +canonical name of the default export, or all exports. + +On error this function can return C. In this case it calls +C as required. C will be set to a suitable +value. + + void nbdkit_exports_free (struct nbdkit_exports *); + +Frees an existing exports list. + +=head3 Iterating over nbdkit_exports list + +Two functions are provided to filters only to iterate over the exports +in order: + + size_t nbdkit_exports_count (const struct nbdkit_exports *); + +Returns the number of exports in the list. + + struct nbdkit_export { + char *name; + char *description; + }; + const struct nbdkit_export nbdkit_get_export (const struct nbdkit_exports *, + size_t i); + +Returns a copy of the C'th export. + +=head2 C<.open> + + void * (*open) (nbdkit_next_open *next, void *nxdata, + int readonly, const char *exportname, int is_tls); + +This is called when a new client connection is opened and can be used +to allocate any per-connection data structures needed by the filter. +The handle (which is not the same as the plugin handle) is passed back +to other filter callbacks and could be freed in the C<.close> +callback. + +Note that the handle is completely opaque to nbdkit, but it must not +be NULL. If you don't need to use a handle, return +C which is a static non-NULL pointer. + +If there is an error, C<.open> should call C with an +error message and return C. + +This callback is optional, but if provided, it should call C, +passing C and C possibly modified according to +how the filter plans to use the plugin (C is not passed, +because a filter cannot modify it). Typically, the filter passes the +same values as it received, or passes readonly=true to provide a +writable layer on top of a read-only backend. However, it is also +acceptable to attempt write access to the plugin even if this filter +is readonly, such as when a file system mounted read-only still +requires write access to the underlying device in case a journal needs +to be replayed for consistency as part of the mounting process. + +The C string is only guaranteed to be available during the +call. If the filter needs to use it (other than immediately passing +it down to the next layer) it must take a copy. The C and +C parameters are provided so that filters do not need to use +the plugin-only interfaces of C and +C. + +The filter should generally call C as its first step, to +allocate from the plugin outwards, so that C<.close> running from the +outer filter to the plugin will be in reverse. Skipping a call to +C is acceptable if the filter will not access C +during any of the remaining callbacks reached on the same connection. + +=head2 C<.close> + + void (*close) (void *handle); + +This is called when the client closes the connection. It should clean +up any per-connection resources used by the filter. It is called +beginning with the outermost filter and ending with the plugin (the +opposite order of C<.open> if all filters call C first), +although this order technically does not matter since the callback +cannot report failures or access the underlying plugin. + +=head2 C<.prepare> + +=head2 C<.finalize> + + int (*prepare) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, int readonly); + int (*finalize) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle); + +These two methods can be used to perform any necessary operations just +after opening the connection (C<.prepare>) or just before closing the +connection (C<.finalize>). + +For example if you need to scan the underlying disk to check for a +partition table, you could do it in your C<.prepare> method (calling +the plugin's C<.get_size> and C<.pread> methods via C). Or +if you need to cleanly update superblock data in the image on close +you can do it in your C<.finalize> method (calling the plugin's +C<.pwrite> method). Doing these things in the filter's C<.open> or +C<.close> method is not possible. + +For C<.prepare>, the value of C is the same as was passed to +C<.open>, declaring how this filter will be used. + +Note that nbdkit performs sanity checking on requests made to the +underlying plugin; for example, Cpread> cannot be +called on a given connection unless Cget_size> has +first been called at least once in the same connection (to ensure the +read requests are in bounds), and Cpwrite> further +requires an earlier successful call to Ccan_write>. In +many filters, these prerequisites will be automatically called during +the client negotiation phase, but there are cases where a filter +overrides query functions or makes I/O calls into the plugin before +handshaking is complete, where the filter needs to make those +prerequisite calls manually during C<.prepare>. + +There is no Cprepare> or Cfinalize>. +Unlike other filter methods, prepare and finalize are not chained +through the C structure. Instead the core nbdkit server +calls the prepare and finalize methods of all filters. Prepare +methods are called starting with the filter closest to the plugin and +proceeding outwards (matching the order of C<.open> if all filters +call C before doing anything locally), and only when an outer +filter did not skip the C call during C<.open>. Finalize +methods are called in the reverse order of prepare methods, with the +outermost filter first (and matching the order of C<.close>), and only +if the prepare method succeeded. + +If there is an error, both callbacks should call C with +an error message and return C<-1>. An error in C<.prepare> is +reported to the client, but leaves the connection open (a client may +try again with a different export name, for example); while an error +in C<.finalize> forces the client to disconnect. + +=head2 C<.get_size> + + int64_t (*get_size) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle); + +This intercepts the plugin C<.get_size> method and can be used to read +or modify the apparent size of the block device that the NBD client +will see. + +The returned size must be E 0. If there is an error, C<.get_size> +should call C with an error message and return C<-1>. +This function is only called once per connection and cached by nbdkit. +Similarly, repeated calls to Cget_size> will return a +cached value. + +=head2 C<.can_write> + +=head2 C<.can_flush> + +=head2 C<.is_rotational> + +=head2 C<.can_trim> + +=head2 C<.can_zero> + +=head2 C<.can_fast_zero> + +=head2 C<.can_extents> + +=head2 C<.can_fua> + +=head2 C<.can_multi_conn> + +=head2 C<.can_cache> + + int (*can_write) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle); + int (*can_flush) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle); + int (*is_rotational) (struct nbdkit_next_ops *next_ops, + void *nxdata, + void *handle); + int (*can_trim) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle); + int (*can_zero) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle); + int (*can_fast_zero) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle); + int (*can_extents) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle); + int (*can_fua) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle); + int (*can_multi_conn) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle); + int (*can_cache) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle); + +These intercept the corresponding plugin methods, and control feature +bits advertised to the client. + +Of note, the semantics of C<.can_zero> callback in the filter are +slightly different from the plugin, and must be one of three success +values visible only to filters: + +=over 4 + +=item C + +Completely suppress advertisement of write zero support (this can only +be done from filters, not plugins). + +=item C + +Inform nbdkit that write zeroes should immediately fall back to +C<.pwrite> emulation without trying C<.zero> (this value is returned +by Ccan_zero> if the plugin returned false in its +C<.can_zero>). + +=item C + +Inform nbdkit that write zeroes should attempt to use C<.zero>, +although it may still fall back to C<.pwrite> emulation for C +or C failures (this value is returned by +Ccan_zero> if the plugin returned true in its +C<.can_zero>). + +=back + +Remember that most of the feature check functions return merely a +boolean success value, while C<.can_zero>, C<.can_fua> and +C<.can_cache> have three success values. + +The difference between C<.can_fua> values may affect choices made in +the filter: when splitting a write request that requested FUA from the +client, if Ccan_fua> returns C, then +the filter should pass the FUA flag on to each sub-request; while if +it is known that FUA is emulated by a flush because of a return of +C, it is more efficient to only flush once after +all sub-requests have completed (often by passing C +on to only the final sub-request, or by dropping the flag and ending +with a direct call to Cflush>). + +If there is an error, the callback should call C with an +error message and return C<-1>. These functions are called at most +once per connection and cached by nbdkit. Similarly, repeated calls to +any of the C counterparts will return a cached value; by +calling into the plugin during C<.prepare>, you can ensure that later +use of the cached values during data commands like <.pwrite> will not +fail. + +=head2 C<.pread> + + int (*pread) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err); + +This intercepts the plugin C<.pread> method and can be used to read or +modify data read by the plugin. + +The parameter C exists in case of future NBD protocol +extensions; at this time, it will be 0 on input, and the filter should +not pass any flags to Cpread>. + +If there is an error (including a short read which couldn't be +recovered from), C<.pread> should call C with an error +message B return -1 with C set to the positive errno value +to return to the client. + +=head2 C<.pwrite> + + int (*pwrite) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, + const void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err); + +This intercepts the plugin C<.pwrite> method and can be used to modify +data written by the plugin. + +This function will not be called if C<.can_write> returned false; in +turn, the filter should not call Cpwrite> if +Ccan_write> did not return true. + +The parameter C may include C on input based +on the result of C<.can_fua>. In turn, the filter should only pass +C on to Cpwrite> if +Ccan_fua> returned a positive value. + +If there is an error (including a short write which couldn't be +recovered from), C<.pwrite> should call C with an error +message B return -1 with C set to the positive errno value +to return to the client. + +=head2 C<.flush> + + int (*flush) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t flags, int *err); + +This intercepts the plugin C<.flush> method and can be used to modify +flush requests. + +This function will not be called if C<.can_flush> returned false; in +turn, the filter should not call Cflush> if +Ccan_flush> did not return true. + +The parameter C exists in case of future NBD protocol +extensions; at this time, it will be 0 on input, and the filter should +not pass any flags to Cflush>. + +If there is an error, C<.flush> should call C with an +error message B return -1 with C set to the positive errno +value to return to the client. + +=head2 C<.trim> + + int (*trim) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, + uint32_t flags, int *err); + +This intercepts the plugin C<.trim> method and can be used to modify +trim requests. + +This function will not be called if C<.can_trim> returned false; in +turn, the filter should not call Ctrim> if +Ccan_trim> did not return true. + +The parameter C may include C on input based +on the result of C<.can_fua>. In turn, the filter should only pass +C on to Ctrim> if +Ccan_fua> returned a positive value. + +If there is an error, C<.trim> should call C with an +error message B return -1 with C set to the positive errno +value to return to the client. + +=head2 C<.zero> + + int (*zero) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, uint32_t flags, + int *err); + +This intercepts the plugin C<.zero> method and can be used to modify +zero requests. + +This function will not be called if C<.can_zero> returned +C; in turn, the filter should not call +Czero> if Ccan_zero> returned +C. + +On input, the parameter C may include C +unconditionally, C based on the result of +C<.can_fua>, and C based on the result of +C<.can_fast_zero>. In turn, the filter may pass +C unconditionally, but should only pass +C or C on to +Czero> if the corresponding Ccan_fua> or +Ccan_fast_zero> returned a positive value. + +Note that unlike the plugin C<.zero> which is permitted to fail with +C or C to force a fallback to C<.pwrite>, the +function Czero> will not fail with C set to +C or C unless C was used, +because otherwise the fallback has already taken place. + +If there is an error, C<.zero> should call C with an +error message B return -1 with C set to the positive errno +value to return to the client. The filter should not fail with +C or C unless C includes +C (while plugins have automatic fallback to +C<.pwrite>, filters do not). + +=head2 C<.extents> + + int (*extents) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, uint32_t flags, + struct nbdkit_extents *extents, + int *err); + +This intercepts the plugin C<.extents> method and can be used to +modify extent requests. + +This function will not be called if C<.can_extents> returned false; in +turn, the filter should not call Cextents> if +Ccan_extents> did not return true. + +It is possible for filters to transform the extents list received back +from the layer below. Without error checking it would look like this: + + myfilter_extents (..., uint32_t count, uint64_t offset, ...) + { + size_t i; + struct nbdkit_extents *extents2; + struct nbdkit_extent e; + int64_t size; + + size = next_ops->get_size (nxdata); + extents2 = nbdkit_extents_new (offset + shift, size); + next_ops->extents (nxdata, count, offset + shift, flags, extents2, err); + for (i = 0; i < nbdkit_extents_count (extents2); ++i) { + e = nbdkit_get_extent (extents2, i); + e.offset -= shift; + nbdkit_add_extent (extents, e.offset, e.length, e.type); + } + nbdkit_extents_free (extents2); + } + +If there is an error, C<.extents> should call C with an +error message B return -1 with C set to the positive errno +value to return to the client. + +=head3 Allocating and freeing nbdkit_extents list + +Two functions are provided to filters only for allocating and freeing +the map: + + struct nbdkit_extents *nbdkit_extents_new (uint64_t start, uint64_t end); + +Allocates and returns a new, empty extents list. The C +parameter is the start of the range described in the list, and the +C parameter is the offset of the byte beyond the end. Normally +you would pass in C as the start and the size of the plugin as +the end, but for filters which adjust offsets, they should pass in the +adjusted offset. + +On error this function can return C. In this case it calls +C and/or C as required. C will +be set to a suitable value. + + void nbdkit_extents_free (struct nbdkit_extents *); + +Frees an existing extents list. + +=head3 Iterating over nbdkit_extents list + +Two functions are provided to filters only to iterate over the extents +in order: + + size_t nbdkit_extents_count (const struct nbdkit_extents *); + +Returns the number of extents in the list. + + struct nbdkit_extent { + uint64_t offset; + uint64_t length; + uint32_t type; + }; + struct nbdkit_extent nbdkit_get_extent (const struct nbdkit_extents *, + size_t i); + +Returns a copy of the C'th extent. + +=head3 Enforcing alignment of an nbdkit_extents list + +A convenience function is provided to filters only which makes it +easier to ensure that the client only encounters aligned extents. + + int nbdkit_extents_aligned (struct nbdkit_next_ops *next_ops, + nbdkit_backend *nxdata, + uint32_t count, uint64_t offset, + uint32_t flags, uint32_t align, + struct nbdkit_extents *extents, int *err); + +Calls next_ops->extents as needed until at least C bytes are +obtained, where C is a power of 2. Anywhere the underlying +plugin returns differing extents within C bytes, this function +treats that portion of the disk as a single extent with zero and +sparse status bits determined by the intersection of all underlying +extents. It is an error to call this function with C or +C that is not already aligned. + +=head2 C<.cache> + + int (*cache) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, + uint32_t flags, int *err); + +This intercepts the plugin C<.cache> method and can be used to modify +cache requests. + +This function will not be called if C<.can_cache> returned +C or C; in turn, the filter +should not call Ccache> unless +Ccan_cache> returned C. + +The parameter C exists in case of future NBD protocol +extensions; at this time, it will be 0 on input, and the filter should +not pass any flags to Ccache>. + +If there is an error, C<.cache> should call C with an +error message B return -1 with C set to the positive errno +value to return to the client. + +=head1 ERROR HANDLING + +If there is an error in the filter itself, the filter should call +C to report an error message. If the callback is +involved in serving data, the explicit C parameter determines the +error code that will be sent to the client; other callbacks should +return the appropriate error indication, eg. C or C<-1>. + +C has the following prototype and works like +L: + + void nbdkit_error (const char *fs, ...); + void nbdkit_verror (const char *fs, va_list args); + +For convenience, C preserves the value of C, and +also supports the glibc extension of a single C<%m> in a format string +expanding to C, even on platforms that don't support +that natively. + +=head1 DEBUGGING + +Run the server with I<-f> and I<-v> options so it doesn't fork and you +can see debugging information: + + nbdkit -fv --filter=./myfilter.so plugin [key=value [key=value [...]]] + +To print debugging information from within the filter, call +C, which has the following prototype and works like +L: + + void nbdkit_debug (const char *fs, ...); + void nbdkit_vdebug (const char *fs, va_list args); + +For convenience, C preserves the value of C, and +also supports the glibc extension of a single C<%m> in a format string +expanding to C, even on platforms that don't support +that natively. Note that C only prints things when the +server is in verbose mode (I<-v> option). + +=head2 Debug Flags + +Debug Flags in filters work exactly the same way as plugins. See +L. + +=head1 INSTALLING THE FILTER + +The filter is a C<*.so> file and possibly a manual page. You can of +course install the filter C<*.so> file wherever you want, and users +will be able to use it by running: + + nbdkit --filter=/path/to/filter.so plugin [args] + +However B the shared library has a name of the form +C-filter.so> B the library is installed in the +C<$filterdir> directory, then users can be run it by only typing: + + nbdkit --filter=name plugin [args] + +The location of the C<$filterdir> directory is set when nbdkit is +compiled and can be found by doing: + + nbdkit --dump-config + +If using the pkg-config/pkgconf system then you can also find the +filter directory at compile time by doing: + + pkg-config nbdkit --variable=filterdir + +=head1 PKG-CONFIG/PKGCONF + +nbdkit provides a pkg-config/pkgconf file called C which +should be installed on the correct path when the nbdkit development +environment is installed. You can use this in autoconf +F scripts to test for the development environment: + + PKG_CHECK_MODULES([NBDKIT], [nbdkit >= 1.2.3]) + +The above will fail unless nbdkit E 1.2.3 and the header file is +installed, and will set C and C +appropriately for compiling filters. + +You can also run pkg-config/pkgconf directly, for example: + + if ! pkg-config nbdkit --exists; then + echo "you must install the nbdkit development environment" + exit 1 + fi + +You can also substitute the filterdir variable by doing: + + PKG_CHECK_VAR([NBDKIT_FILTERDIR], [nbdkit], [filterdir]) + +which defines C<$(NBDKIT_FILTERDIR)> in automake-generated Makefiles. + +=head1 SEE ALSO + +L, +L. + +Standard filters provided by nbdkit: + +__FILTER_LINKS__. + +=head1 AUTHORS + +Eric Blake + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2013-2020 Red Hat Inc. diff --git a/docs/nbdkit-loop.pod b/docs/nbdkit-loop.pod new file mode 100644 index 0000000..055b575 --- /dev/null +++ b/docs/nbdkit-loop.pod @@ -0,0 +1,156 @@ +=head1 NAME + +nbdkit-loop - use nbdkit with the Linux kernel client to create loop +devices and loop mounts + +=head1 DESCRIPTION + +nbdkit (server) can be used with the Linux kernel nbd (client) in a +loop mode allowing any of the plugins supported by nbdkit to be turned +into Linux block devices. + +In addition to L itself, the main commands you will use +are: + +=over 4 + +=item nbd-client -b 512 localhost /dev/nbd0 + +Attaches a locally running nbdkit instance to the kernel device +F. I<-b 512> can be omitted when using S +E 3.19>. + +=item nbd-client -b 512 -unix /tmp/socket /dev/nbd0 + +Alternative method using a Unix domain socket instead of a public +TCP/IP socket. Use C to serve. + +=item nbd-client -d /dev/nbd0 + +Detaches F. + +=item nbd-client -c /dev/nbd0 + +Queries whether F is attached or not. + +=item modprobe nbd + +You may be need to run this command once to load the nbd client kernel +module. + +=back + +The L and L commands must be run as root. + +=head2 Warning: Do not loop mount untrusted filesystems + +Untrusted filesystems and untrusted disk images should not be loop +mounted because they could contain exploits that attack your host +kernel. Use the tools from L instead since it safely +isolates untrusted filesystems from the host. + +=head2 Loop mount a filesystem from a compressed file + +If you have a filesystem or disk image in xz-compressed format then +you can use L and L to +loop mount it as follows: + + nbdkit --filter=xz file disk.xz + nbd-client -b 512 localhost /dev/nbd0 + mount /dev/nbd0p1 /mnt + +=head2 Loop mount a filesystem from a web server + +You can use L to loop mount a filesystem from a +disk image on a web server: + + nbdkit [--filter=xz] curl https://example.com/disk.img + nbd-client -b 512 localhost /dev/nbd0 + mount /dev/nbd0p1 /mnt + +Use I<--filter=xz> if the remote image is XZ-compressed. + +=head2 Create a giant btrfs filesystem + +nbdkit is useful for testing the limits of Linux filesystems. Using +L you can create virtual disks stored in RAM +with a virtual size up to S<2⁶³-1 bytes>, and then create filesystems +on these: + + nbdkit memory $(( 2**63 - 1 )) + nbd-client -b 512 localhost /dev/nbd0 + +Partition the device using GPT, creating a single partition with all +default settings: + + gdisk /dev/nbd0 + +Make a btrfs filesystem on the disk and mount it: + + mkfs.btrfs -K /dev/nbd0p1 + mount /dev/nbd0p1 /mnt + +=head2 Inject errors into Linux devices + +Using L you can see how Linux devices react to +errors: + + nbdkit --filter=error \ + memory 64M \ + error-rate=100% error-file=/tmp/inject + nbd-client -b 512 localhost /dev/nbd0 + mkfs -t ext4 /dev/nbd0 + mount /dev/nbd0 /mnt + +Inject errors by touching F, and stop injecting errors by +removing this file. + +=head2 Write Linux block devices in shell script + +Using L you can write custom Linux block devices +in shell script for testing. For example the following shell script +creates a disk which contains a bad sector: + + #!/bin/bash - + case "$1" in + thread_model) echo parallel ;; + get_size) echo 64M ;; + pread) + if [ $4 -le 100000 ] && [ $(( $4+$3 )) -gt 100000 ]; then + echo EIO Bad block >&2 + exit 1 + else + dd if=/dev/zero count=$3 iflag=count_bytes + fi ;; + *) exit 2 ;; + esac + +Create a loop from this shell script using: + + nbdkit sh ./bad-sector.sh + nbd-client -b 512 localhost /dev/nbd0 + +You can then try running tests such as: + + badblocks /dev/nbd0 + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L, +L, +L, +L, +L, L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2013-2020 Red Hat Inc. diff --git a/docs/nbdkit-plugin.pod b/docs/nbdkit-plugin.pod new file mode 100644 index 0000000..b16d516 --- /dev/null +++ b/docs/nbdkit-plugin.pod @@ -0,0 +1,1634 @@ +=head1 NAME + +nbdkit-plugin - how to write nbdkit plugins + +=head1 SYNOPSIS + + #define NBDKIT_API_VERSION 2 + #include + + #define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS + + static void * + myplugin_open (void) + { + /* create a handle ... */ + return handle; + } + + static struct nbdkit_plugin plugin = { + .name = "myplugin", + .open = myplugin_open, + .get_size = myplugin_get_size, + .pread = myplugin_pread, + .pwrite = myplugin_pwrite, + /* etc */ + }; + NBDKIT_REGISTER_PLUGIN(plugin) + +Compile the plugin as a shared library: + + gcc -fPIC -shared myplugin.c -o myplugin.so + +and load it into nbdkit: + + nbdkit [--args ...] ./myplugin.so [key=value ...] + +When debugging, use the I<-fv> options: + + nbdkit -fv ./myplugin.so [key=value ...] + +=head1 DESCRIPTION + +An nbdkit plugin is a new source device which can be served using the +Network Block Device (NBD) protocol. This manual page describes how +to create an nbdkit plugin in C. + +To see example plugins: +L + +To write plugins in other languages, see: +__LANG_PLUGIN_LINKS__. + +=head2 API and ABI guarantee for C plugins + +Plugins written in C have an ABI guarantee: a plugin compiled against +an older version of nbdkit will still work correctly when loaded with +a newer nbdkit. We also try (but cannot guarantee) to support plugins +compiled against a newer version of nbdkit when loaded with an older +nbdkit, although the plugin may have reduced functionality if it +depends on features only provided by newer nbdkit. + +For plugins written in C, we also provide an API guarantee: a plugin +written against an older header will still compile unmodified with a +newer nbdkit. + +The API guarantee does not always apply to plugins written in other +(non-C) languages which may have to adapt to changes when recompiled +against a newer nbdkit. + +=head1 WRITING AN NBDKIT PLUGIN + +=head2 C<#define NBDKIT_API_VERSION 2> + +Plugins must choose which API version they want to use, by defining +NBDKIT_API_VERSION before including Cnbdkit-plugin.hE> (or +any other nbdkit header). + +If omitted, the default version is 1 for backwards-compatibility with +nbdkit v1.1.26 and earlier; however, it is recommended that new +plugins be written to the maximum version (currently 2) as it enables +more features and better interaction with nbdkit filters. + +The rest of this document only covers the version 2 interface. A +newer nbdkit will always support plugins written in C which use any +prior API version. + +=head2 C<#include Enbdkit-plugin.hE> + +All plugins should start by including this header file (after +optionally choosing an API version). + +=head2 C<#define THREAD_MODEL ...> + +All plugins must define a thread model. See L below for +details. It is generally safe to use: + + #define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS + +=head2 C + +All plugins must define and register one C, +which contains the name of the plugin and pointers to callback +functions, and use the C macro: + + static struct nbdkit_plugin plugin = { + .name = "myplugin", + .longname = "My Plugin", + .description = "This is my great plugin for nbdkit", + .open = myplugin_open, + .get_size = myplugin_get_size, + .pread = myplugin_pread, + .pwrite = myplugin_pwrite, + /* etc */ + }; + NBDKIT_REGISTER_PLUGIN(plugin) + +The C<.name> field is the name of the plugin. + +The callbacks are described below (see L). Only C<.name>, +C<.open>, C<.get_size> and C<.pread> are required. All other +callbacks can be omitted, although typical plugins need to use more. + +=head2 Callback lifecycle + +Callbacks are called in the following order over the lifecycle of +the plugin: + + ┌──────────────────┐ + │ load │ + └─────────┬────────┘ + │ configuration phase starts ─┐ + ┌─────────┴────────┐ ┆ + │ config │ config is called once per ┆ + └─────────┬────────┘↺ key=value on the command line ┆ + ┌─────────┴────────┐ ┆ + │ config_complete │ ┆ + └─────────┬────────┘ ┆ + ┌─────────┴────────┐ ┆ + │ thread_model │ ┆ + └─────────┬────────┘ configuration phase ends ─┘ + ┌─────────┴────────┐ + │ get_ready │ + └─────────┬────────┘ + │ nbdkit forks into the background + ┌─────────┴────────┐ + │ after_fork │ + └─────────┬────────┘ + │ nbdkit starts serving clients + │ + ┌──────────┴─────────────┬─ ─ ─ ─ ─ ─ ─ ─ ─ + ┌──────┴─────┐ client #1 │ + │ preconnect │ │ + └──────┬─────┘ │ + ┌──────┴─────┐ │ + │ open │ │ + └──────┬─────┘ │ + ┌──────┴─────┐ NBD option │ + │ can_write │ negotiation │ + └──────┬─────┘ │ + ┌──────┴─────┐ ┌──────┴─────┐ client #2 + │ get_size │ │ preconnect │ + └──────┬─────┘ └──────┬─────┘ + ┌──────┴─────┐ data + │ pread │ serving + └──────┬─────┘↺ ... + ┌──────┴─────┐ + │ pwrite │ + └──────┬─────┘↺ ┌──────┴─────┐ + ┌──────┴─────┐ │ close │ + │ close │ └────────────┘ + └────────────┘ + + │ before nbdkit exits + │ + ┌─────────┴────────┐ + │ unload │ + └──────────────────┘ + +=over 4 + +=item C<.load> + +is called once just after the plugin is loaded into memory. + +=item C<.config> and C<.config_complete> + +C<.config> is called zero or more times during command line parsing. +C<.config_complete> is called once after all configuration information +has been passed to the plugin (but not during C). + +Both are called after loading the plugin but before any connections +are accepted. + +=item C<.thread_model> + +In normal operation, C<.thread_model> is called once after +C<.config_complete> has validated all configuration information, and +before any connections are accepted. However, during C, it is called after any C<.config> calls but without +C<.config_complete> (so a plugin which determines the results from a +script must be prepared for a missing script). + +=item C<.get_ready> + +In normal operation, C<.get_ready> is called before the server starts +serving. It is called before the server forks or changes directory. +It is normally the last chance to do any global preparation that is +needed to serve connections. + +Plugins should not create background threads here. Use C<.after_fork> +instead. + +=item C<.after_fork> + +In normal operation, C<.after_fork> is called after the server has +forked into the background and changed UID and directory. If a plugin +needs to create background threads (or uses an external library that +creates threads) it should do so here, because background threads are +invalidated by fork. + +Because the server may have forked into the background, error messages +and failures from C<.after_fork> cannot be seen by the user unless +they look through syslog. An error in C<.after_fork> can appear to +the user as if nbdkit “just died”. So in almost all cases it is +better to use C<.get_ready> instead of this callback, or to do as much +preparation work as possible in C<.get_ready> and only start +background threads here. + +The server doesn't always fork (eg. if the I<-f> flag is used), but +even so this callback will be called. If you want to find out if the +server forked between C<.get_ready> and C<.after_fork> use +L. + +=item C<.preconnect> + +Called when a TCP connection has been made to the server. This +happens early, before NBD or TLS negotiation. + +=item C<.open> + +A new client has connected and finished the NBD handshake. TLS +negotiation (if required) has been completed successfully. + +=item C<.can_write>, C<.get_size> and other option negotiation callbacks + +These are called during option negotiation with the client, but before +any data is served. These callbacks may return different values +across different C<.open> calls, but within a single connection, they +are called at most once and cached by nbdkit for that connection. + +=item C<.pread>, C<.pwrite> and other data serving callbacks + +After option negotiation has finished, these may be called to serve +data. Depending on the thread model chosen, they might be called in +parallel from multiple threads. The data serving callbacks include a +flags argument; the results of the negotiation callbacks influence +whether particular flags will ever be passed to a data callback. + +=item C<.close> + +The client has disconnected. + +=item C<.preconnect>, C<.open> ... C<.close> + +The sequence C<.preconnect>, C<.open> ... C<.close> can be called +repeatedly over the lifetime of the plugin, and can be called in +parallel (depending on the thread model). + +=item C<.unload> + +is called once just before the plugin is unloaded from memory. + +=back + +=head2 Flags + +The following flags are defined by nbdkit, and used in various data +serving callbacks as follows: + +=over 4 + +=item C + +This flag is used by the C<.zero> callback; there is no way to disable +this flag, although a plugin that does not support trims as a way to +write zeroes may ignore the flag without violating expected semantics. + +=item C + +This flag represents Forced Unit Access semantics. It is used by the +C<.pwrite>, C<.zero>, and C<.trim> callbacks to indicate that the +plugin must not return a result until the action has landed in +persistent storage. This flag will not be sent to the plugin unless +C<.can_fua> is provided and returns C. + +=back + +The following defines are valid as successful return values for +C<.can_fua>: + +=over 4 + +=item C + +Forced Unit Access is not supported; the client must manually request +a flush after writes have completed. The C flag will +not be passed to the plugin's write callbacks. + +=item C + +The client may request Forced Unit Access, but it is implemented by +emulation, where nbdkit calls C<.flush> after a write operation; this +is semantically correct, but may hurt performance as it tends to flush +more data than just what the client requested. The C +flag will not be passed to the plugin's write callbacks. + +=item C + +The client may request Forced Unit Access, which results in the +C flag being passed to the plugin's write callbacks +(C<.pwrite>, C<.trim>, and C<.zero>). When the flag is set, these +callbacks must not return success until the client's request has +landed in persistent storage. + +=back + +The following defines are valid as successful return values for +C<.can_cache>: + +=over 4 + +=item C + +The server does not advertise caching support, and rejects any +client-requested caching. Any C<.cache> callback is ignored. + +=item C + +The nbdkit server advertises cache support to the client, where the +client may request that the server cache a region of the export to +potentially speed up future read and/or write operations on that +region. The nbdkit server implements the caching by calling C<.pread> +and ignoring the results. This option exists to ease the +implementation of a common form of caching; any C<.cache> callback is +ignored. + +=item C + +The nbdkit server advertises cache support to the client, where the +client may request that the server cache a region of the export to +potentially speed up future read and/or write operations on that +region. The nbdkit server calls the C<.cache> callback to perform the +caching; if that callback is missing, the client's cache request +succeeds without doing anything. + +=back + +=head2 Threads + +Each nbdkit plugin must declare its maximum thread safety model by +defining the C macro. (This macro is used by +C). Additionally, a plugin may implement the +C<.thread_model> callback, called right after C<.config_complete> to +make a runtime decision on which thread model to use. The nbdkit +server chooses the most restrictive model between the plugin's +C, the C<.thread_model> if present, any restrictions +requested by filters, and any limitations imposed by the operating +system. + +In C output, the C line +matches the C macro, and the C line +matches what the system finally settled on after applying all +restrictions. + +The possible settings for C are defined below. + +=over 4 + +=item C<#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_CONNECTIONS> + +Only a single handle can be open at any time, and all requests happen +from one thread. + +Note this means only one client can connect to the server at any time. +If a second client tries to connect it will block waiting for the +first client to close the connection. + +=item C<#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS> + +I. + +Multiple handles can be open at the same time, but requests are +serialized so that for the plugin as a whole only one +open/read/write/close (etc) request will be in progress at any time. + +This is a useful setting if the library you are using is not +thread-safe. However performance may not be good. + +=item C<#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_REQUESTS> + +Multiple handles can be open and multiple data requests can happen in +parallel. However only one request will happen per handle at a time +(but requests on different handles might happen concurrently). + +=item C<#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL> + +Multiple handles can be open and multiple data requests can happen in +parallel (even on the same handle). The server may reorder replies, +answering a later request before an earlier one. + +All the libraries you use must be thread-safe and reentrant, and any +code that creates a file descriptor should atomically set +C if you do not want it accidentally leaked to another +thread's child process. You may also need to provide mutexes for +fields in your connection handle. + +=back + +If none of the above thread models are suitable, use +C and implement your own locking using +C etc. + +=head2 Error handling + +If there is an error in the plugin, the plugin should call +C to report an error message; additionally, if the +callback is involved in serving data, the plugin should call +C to influence the error code that will be sent to +the client. These two functions can be called in either order. Then, +the callback should return the appropriate error indication, +eg. C or C<-1>. + +If the call to C is omitted while serving data, then +the global variable C may be used. For plugins which have +C<.errno_is_preserved != 0> the core code will use C. In +plugins written in non-C languages, we usually cannot trust that +C will not be overwritten when returning from that language to +C. In that case, either the plugin must call C or +hard-coded C is used. + +C has the following prototype and works like +L: + + void nbdkit_error (const char *fs, ...); + void nbdkit_verror (const char *fs, va_list args); + +For convenience, C preserves the value of C, and +also supports the glibc extension of a single C<%m> in a format string +expanding to C, even on platforms that don't support +that natively. + +C can be called at any time, but only has an impact +during callbacks for serving data, and only when the callback returns +an indication of failure. It has the following prototype: + + void nbdkit_set_error (int err); + +=head1 CALLBACKS + +=head2 C<.name> + + const char *name; + +This field (a string) is required, and B contain only ASCII +alphanumeric characters or non-leading dashes, and be unique amongst +all plugins. + +=head2 C<.version> + + const char *version; + +Plugins may optionally set a version string which is displayed in help +and debugging output. + +=head2 C<.longname> + + const char *longname; + +An optional free text name of the plugin. This field is used in error +messages. + +=head2 C<.description> + + const char *description; + +An optional multi-line description of the plugin. + +=head2 C<.load> + + void load (void); + +This is called once just after the plugin is loaded into memory. You +can use this to perform any global initialization needed by the +plugin. + +=head2 C<.unload> + + void unload (void); + +This may be called once just before the plugin is unloaded from +memory. Note that it's not guaranteed that C<.unload> will always be +called (eg. the server might be killed or segfault), so you should try +to make the plugin as robust as possible by not requiring cleanup. +See also L below. + +=head2 C<.dump_plugin> + + void dump_plugin (void); + +This optional callback is called when the +S> command is used. It should print +any additional informative C fields to stdout as needed. +Prefixing the keys with the name of the plugin will avoid conflicts. + +=head2 C<.config> + + int config (const char *key, const char *value); + +On the nbdkit command line, after the plugin filename, come an +optional list of C arguments. These are passed to the +plugin through this callback when the plugin is first loaded and +before any connections are accepted. + +This callback may be called zero or more times. + +Both C and C parameters will be non-NULL. The strings are +owned by nbdkit but will remain valid for the lifetime of the plugin, +so the plugin does not need to copy them. + +The key will be a non-empty string beginning with an ASCII alphabetic +character (C C). The rest of the key must contain only +ASCII alphanumeric plus period, underscore or dash characters (C +C C<0-9> C<.> C<_> C<->). The value may be an arbitrary string, +including an empty string. + +The names of Cs accepted by plugins is up to the plugin, but you +should probably look at other plugins and follow the same conventions. + +If the value is a relative path, then note that the server changes +directory when it starts up. See L above. + +If C returns 1, the value of the configuration +parameter may be used to trigger reading additional data through stdin +(such as a password or inline script). + +If the C<.config> callback is not provided by the plugin, and the user +tries to specify any C arguments, then nbdkit will exit +with an error. + +If there is an error, C<.config> should call C with an +error message and return C<-1>. + +=head2 C<.magic_config_key> + + const char *magic_config_key; + +This optional string can be used to set a "magic" key used when +parsing plugin parameters. It affects how "bare parameters" (those +which do not contain an C<=> character) are parsed on the command +line. + +If C then any bare parameters are passed to +the C<.config> method as: S>. + +If C is not set then we behave as in nbdkit E +1.7: If the first parameter on the command line is bare then it is +passed to the C<.config> method as: S>. +Any other bare parameters give errors. + +=head2 C<.config_complete> + + int config_complete (void); + +This optional callback is called after all the configuration has been +passed to the plugin. It is a good place to do checks, for example +that the user has passed the required parameters to the plugin. + +If there is an error, C<.config_complete> should call C +with an error message and return C<-1>. + +=head2 C<.config_help> + + const char *config_help; + +This optional multi-line help message should summarize any +C parameters that it takes. It does I need to repeat +what already appears in C<.description>. + +If the plugin doesn't take any config parameters you should probably +omit this. + +=head2 C<.thread_model> + + int thread_model (void) + +This optional callback is called after all the configuration has been +passed to the plugin. It can be used to force a stricter thread model +based on configuration, compared to C. See L +above for details. Attempts to request a looser (more parallel) model +are silently ignored. + +If there is an error, C<.thread_model> should call C +with an error message and return C<-1>. + +=head2 C<.get_ready> + + int get_ready (void); + +This optional callback is called before the server starts serving. It +is called before the server forks or changes directory. It is +ordinarily the last chance to do any global preparation that is needed +to serve connections. + +If there is an error, C<.get_ready> should call C with +an error message and return C<-1>. + +=head2 C<.after_fork> + + int after_fork (void); + +This optional callback is called before the server starts serving. It +is called after the server forks and changes directory. If a plugin +needs to create background threads (or uses an external library that +creates threads) it should do so here, because background threads are +killed by fork. However you should try to do as little as possible +here because error reporting is difficult. See L +above. + +If there is an error, C<.after_fork> should call C with +an error message and return C<-1>. + +=head2 C<.preconnect> + + int preconnect (int readonly); + +This optional callback is called when a TCP connection has been made +to the server. This happens early, before NBD or TLS negotiation. If +TLS authentication is required to access the server, then it has +B been negotiated at this point. + +For security reasons (to avoid denial of service attacks) this +callback should be written to be as fast and take as few resources as +possible. If you use this callback, only use it to do basic access +control, such as checking C against a list of +permitted IP addresses (see L and L). +It may be better to do access control outside the server, for example +using TCP wrappers or a firewall. + +The C flag informs the plugin that the server was started +with the I<-r> flag on the command line. + +Returning C<0> will allow the connection to continue. If there is an +error or you want to deny the connection, call C with an +error message and return C<-1>. + +=head2 C<.open> + + void *open (int readonly); + +This is called when a new client connects to the nbdkit server. The +callback should allocate a handle and return it. This handle +is passed back to other callbacks and could be freed in the C<.close> +callback. + +Note that the handle is completely opaque to nbdkit, but it must not +be NULL. If you don't need to use a handle, return +C which is a static non-NULL pointer. + +The C flag informs the plugin that the server was started +with the I<-r> flag on the command line which forces connections to be +read-only. Note that the plugin may I force the +connection to be readonly (even if this flag is false) by returning +false from the C<.can_write> callback. So if your plugin can only +serve read-only, you can ignore this parameter. + +If the plugin wants to differentiate the content it serves based on +client input, then this is the spot to use C to +determine which export the client requested. See also L +below. + +This callback is called after the NBD handshake has completed; if the +server requires TLS authentication, then that has occurred as well. +But if the server is set up to have optional TLS authentication, you +may check C to learn whether the client has completed +TLS authentication. When running the server in a mode that permits +but not requires TLS, be careful that you do not allow unauthenticated +clients to cause a denial of service against authentication. + +If there is an error, C<.open> should call C with an +error message and return C. + +=head2 C<.close> + + void close (void *handle); + +This is called when the client closes the connection. It should clean +up any per-connection resources. + +Note there is no way in the NBD protocol to communicate close errors +back to the client, for example if your plugin calls L and +you are checking for errors (as you should do). Therefore the best +you can do is to log the error on the server. Well-behaved NBD +clients I try to flush the connection before it is closed and +check for errors, but obviously this is outside the scope of nbdkit. + +=head2 C<.get_size> + + int64_t get_size (void *handle); + +This is called during the option negotiation phase of the protocol +to get the size (in bytes) of the block device being exported. + +The returned size must be E 0. If there is an error, C<.get_size> +should call C with an error message and return C<-1>. + +=head2 C<.can_write> + + int can_write (void *handle); + +This is called during the option negotiation phase to find out if the +handle supports writes. + +If there is an error, C<.can_write> should call C with +an error message and return C<-1>. + +This callback is not required. If omitted, then we return true iff a +C<.pwrite> callback has been defined. + +=head2 C<.can_flush> + + int can_flush (void *handle); + +This is called during the option negotiation phase to find out if the +handle supports the flush-to-disk operation. + +If there is an error, C<.can_flush> should call C with +an error message and return C<-1>. + +This callback is not required. If omitted, then we return true iff a +C<.flush> callback has been defined. + +=head2 C<.is_rotational> + + int is_rotational (void *handle); + +This is called during the option negotiation phase to find out if the +backing disk is a rotational medium (like a traditional hard disk) or +not (like an SSD). If true, this may cause the client to reorder +requests to make them more efficient for a slow rotating disk. + +If there is an error, C<.is_rotational> should call C +with an error message and return C<-1>. + +This callback is not required. If omitted, then we return false. + +=head2 C<.can_trim> + + int can_trim (void *handle); + +This is called during the option negotiation phase to find out if the +plugin supports the trim/discard operation for punching holes in the +backing storage. + +If there is an error, C<.can_trim> should call C with an +error message and return C<-1>. + +This callback is not required. If omitted, then we return true iff a +C<.trim> callback has been defined. + +=head2 C<.can_zero> + + int can_zero (void *handle); + +This is called during the option negotiation phase to find out if the +plugin wants the C<.zero> callback to be utilized. Support for +writing zeroes is still advertised to the client (unless the +L is also used), so returning false merely +serves as a way to avoid complicating the C<.zero> callback to have to +fail with C or C on the connections where it will +never be more efficient than using C<.pwrite> up front. + +If there is an error, C<.can_zero> should call C with an +error message and return C<-1>. + +This callback is not required. If omitted, then for a normal zero +request, nbdkit always tries C<.zero> first if it is present, and +gracefully falls back to C<.pwrite> if C<.zero> was absent or failed +with C or C. + +=head2 C<.can_fast_zero> + + int can_fast_zero (void *handle); + +This is called during the option negotiation phase to find out if the +plugin wants to advertise support for fast zero requests. If this +support is not advertised, a client cannot attempt fast zero requests, +and has no way to tell if writing zeroes offers any speedups compared +to using C<.pwrite> (other than compressed network traffic). If +support is advertised, then C<.zero> will have +C set when the client has requested a fast +zero, in which case the plugin must fail with C or +C up front if the request would not offer any benefits +over C<.pwrite>. Advertising support for fast zero requests does not +require that writing zeroes be fast, only that the result (whether +success or failure) is fast, so this should be advertised when +feasible. + +If there is an error, C<.can_fast_zero> should call C +with an error message and return C<-1>. + +This callback is not required. If omitted, then nbdkit returns true +if C<.zero> is absent or C<.can_zero> returns false (in those cases, +nbdkit fails all fast zero requests, as its fallback to C<.pwrite> is +not inherently faster), otherwise false (since it cannot be determined +in advance if the plugin's C<.zero> will properly honor the semantics +of C). + +=head2 C<.can_extents> + + int can_extents (void *handle); + +This is called during the option negotiation phase to find out if the +plugin supports detecting allocated (non-sparse) regions of the disk +with the C<.extents> callback. + +If there is an error, C<.can_extents> should call C with +an error message and return C<-1>. + +This callback is not required. If omitted, then we return true iff a +C<.extents> callback has been defined. + +=head2 C<.can_fua> + + int can_fua (void *handle); + +This is called during the option negotiation phase to find out if the +plugin supports the Forced Unit Access (FUA) flag on write, zero, and +trim requests. If this returns C, FUA support is not +advertised to the client; if this returns C, the +C<.flush> callback must work (even if C<.can_flush> returns false), +and FUA support is emulated by calling C<.flush> after any write +operation; if this returns C, then the C<.pwrite>, +C<.zero>, and C<.trim> callbacks (if implemented) must handle the flag +C, by not returning until that action has landed in +persistent storage. + +If there is an error, C<.can_fua> should call C with an +error message and return C<-1>. + +This callback is not required unless a plugin wants to specifically +handle FUA requests. If omitted, nbdkit checks whether C<.flush> +exists, and behaves as if this function returns C or +C as appropriate. + +=head2 C<.can_multi_conn> + + int can_multi_conn (void *handle); + +This is called during the option negotiation phase to find out if the +plugin is prepared to handle multiple connections from a single +client. If the plugin sets this to true then a client may try to open +multiple connections to the nbdkit server and spread requests across +all connections to maximize parallelism. If the plugin sets it to +false (which is the default) then well-behaved clients should only +open a single connection, although we cannot control what clients do +in practice. + +Specifically it means that either the plugin does not cache requests +at all. Or if it does cache them then the effects of a C<.flush> +request or setting C on a request must be visible +across all connections to the plugin before the plugin replies to that +request. + +Properly working clients should send the same export name for each of +these connections. + +If you use Linux L option S> with +S 1> then Linux checks this flag and will refuse to connect +if C<.can_multi_conn> is false. + +If there is an error, C<.can_multi_conn> should call C +with an error message and return C<-1>. + +This callback is not required. If omitted, then we return false. + +=head2 C<.can_cache> + + int can_cache (void *handle); + +This is called during the option negotiation phase to find out if the +plugin supports a cache operation. The nature of the caching is +unspecified (including whether there are limits on how much can be +cached at once, and whether writes to a cached region have +write-through or write-back semantics), but the command exists to let +clients issue a hint to the server that they will be accessing that +region of the export. + +If this returns C, cache support is not advertised +to the client; if this returns C, caching is +emulated by the server calling C<.pread> and ignoring the results; if +this returns C, then the C<.cache> callback will +be used. If there is an error, C<.can_cache> should call +C with an error message and return C<-1>. + +This callback is not required. If omitted, then we return +C if the C<.cache> callback is missing, or +C if it is defined. + +=head2 C<.pread> + + int pread (void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags); + +During the data serving phase, nbdkit calls this callback to read data +from the backing store. C bytes starting at C in the +backing store should be read and copied into C. nbdkit takes +care of all bounds- and sanity-checking, so the plugin does not need +to worry about that. + +The parameter C exists in case of future NBD protocol +extensions; at this time, it will be 0 on input. + +The callback must read the whole C bytes if it can. The NBD +protocol doesn't allow partial reads (instead, these would be errors). +If the whole C bytes was read, the callback should return C<0> +to indicate there was I error. + +If there is an error (including a short read which couldn't be +recovered from), C<.pread> should call C with an error +message, and C to record an appropriate error +(unless C is sufficient), then return C<-1>. + +=head2 C<.pwrite> + + int pwrite (void *handle, const void *buf, uint32_t count, uint64_t offset, + uint32_t flags); + +During the data serving phase, nbdkit calls this callback to write +data to the backing store. C bytes starting at C in +the backing store should be written using the data in C. nbdkit +takes care of all bounds- and sanity-checking, so the plugin does not +need to worry about that. + +This function will not be called if C<.can_write> returned false. The +parameter C may include C on input based on +the result of C<.can_fua>. + +The callback must write the whole C bytes if it can. The NBD +protocol doesn't allow partial writes (instead, these would be +errors). If the whole C bytes was written successfully, the +callback should return C<0> to indicate there was I error. + +If there is an error (including a short write which couldn't be +recovered from), C<.pwrite> should call C with an error +message, and C to record an appropriate error +(unless C is sufficient), then return C<-1>. + +=head2 C<.flush> + + int flush (void *handle, uint32_t flags); + +During the data serving phase, this callback is used to +L the backing store, ie. to ensure it has been +completely written to a permanent medium. If that is not possible +then you can omit this callback. + +This function will not be called directly by the client if +C<.can_flush> returned false; however, it may still be called by +nbdkit if C<.can_fua> returned C. The parameter +C exists in case of future NBD protocol extensions; at this +time, it will be 0 on input. + +If there is an error, C<.flush> should call C with an +error message, and C to record an appropriate error +(unless C is sufficient), then return C<-1>. + +=head2 C<.trim> + + int trim (void *handle, uint32_t count, uint64_t offset, uint32_t flags); + +During the data serving phase, this callback is used to "punch holes" +in the backing store. If that is not possible then you can omit this +callback. + +This function will not be called if C<.can_trim> returned false. The +parameter C may include C on input based on +the result of C<.can_fua>. + +If there is an error, C<.trim> should call C with an +error message, and C to record an appropriate error +(unless C is sufficient), then return C<-1>. + +=head2 C<.zero> + + int zero (void *handle, uint32_t count, uint64_t offset, uint32_t flags); + +During the data serving phase, this callback is used to write C +bytes of zeroes at C in the backing store. + +This function will not be called if C<.can_zero> returned false. On +input, the parameter C may include C +unconditionally, C based on the result of +C<.can_fua>, and C based on the result of +C<.can_fast_zero>. + +If C is requested, the operation can punch a +hole instead of writing actual zero bytes, but only if subsequent +reads from the hole read as zeroes. + +If C is requested, the plugin must decide up +front if the implementation is likely to be faster than a +corresponding C<.pwrite>; if not, then it must immediately fail with +C or C (whether by C or +C) and preferably without modifying the exported image. It is +acceptable to always fail a fast zero request (as a fast failure is +better than attempting the write only to find out after the fact that +it was not fast after all). Note that on Linux, support for +C is insufficient for determining whether a zero +request to a block device will be fast (because the kernel will +perform a slow fallback when needed). + +The callback must write the whole C bytes if it can. The NBD +protocol doesn't allow partial writes (instead, these would be +errors). If the whole C bytes was written successfully, the +callback should return C<0> to indicate there was I error. + +If there is an error, C<.zero> should call C with an +error message, and C to record an appropriate error +(unless C is sufficient), then return C<-1>. + +If this callback is omitted, or if it fails with C or +C (whether by C or C), then +C<.pwrite> will be used as an automatic fallback except when the +client requested a fast zero. + +=head2 C<.extents> + + int extents (void *handle, uint32_t count, uint64_t offset, + uint32_t flags, struct nbdkit_extents *extents); + +During the data serving phase, this callback is used to detect +allocated, sparse and zeroed regions of the disk. + +This function will not be called if C<.can_extents> returned false. +nbdkit's default behaviour in this case is to treat the whole virtual +disk as if it was allocated. Also, this function will not be called +by a client that does not request structured replies (the I<--no-sr> +option of nbdkit can be used to test behavior when C<.extents> is +unavailable to the client). + +The callback should detect and return the list of extents overlapping +the range C<[offset...offset+count-1]>. The C parameter +points to an opaque object which the callback should fill in by +calling C. See L below. + +If there is an error, C<.extents> should call C with an +error message, and C to record an appropriate error +(unless C is sufficient), then return C<-1>. + +=head3 Extents list + +The plugin C callback is passed an opaque pointer C. This structure represents a list of +L +describing which areas of the disk are allocated, which are sparse +(“holes”), and, if supported, which are zeroes. + +The C callback should scan the disk starting at C and +call C for each extent found. + +Extents overlapping the range C<[offset...offset+count-1]> should be +returned if possible. However nbdkit ignores extents E offset so +the plugin may, if it is easier to implement, return all extent +information for the whole disk. The plugin may return extents beyond +the end of the range. It may also return extent information for less +than the whole range, but it must return at least one extent +overlapping C. + +The extents B be added in ascending order, and B be +contiguous. + +The C parameter of the C<.extents> callback may contain the +flag C. This means that the client is only +requesting information about the extent overlapping C. The +plugin may ignore this flag, or as an optimization it may return just +a single extent for C. + + int nbdkit_add_extent (struct nbdkit_extents *extents, + uint64_t offset, uint64_t length, uint32_t type); + +Add an extent covering C<[offset...offset+length-1]> of one of +the following four types: + +=over 4 + +=item C + +A normal, allocated data extent. + +=item C + +An unallocated extent, a.k.a. a “hole”, which reads back as zeroes. +This is the normal type of hole applicable to most disks. + +=item C + +An allocated extent which is known to contain only zeroes. + +=item C + +An unallocated extent (hole) which does not read back as zeroes. Note +this should only be used in specialized circumstances such as when +writing a plugin for (or to emulate) certain SCSI drives which do not +guarantee that trimmed blocks read back as zeroes. + +=back + +C returns C<0> on success or C<-1> on failure. On +failure C and/or C has already been +called. C will be set to a suitable value. + +=head2 C<.cache> + + int cache (void *handle, uint32_t count, uint64_t offset, uint32_t flags); + +During the data serving phase, this callback is used to give the +plugin a hint that the client intends to make further accesses to the +given region of the export. The nature of caching is not specified +further by the NBD specification (for example, a server may place +limits on how much may be cached at once, and there is no way to +control if writes to a cached area have write-through or write-back +semantics). In fact, the cache command can always fail and still be +compliant, and success might not guarantee a performance gain. If +this callback is omitted, then the results of C<.can_cache> determine +whether nbdkit will reject cache requests, treat them as instant +success, or emulate caching by calling C<.pread> over the same region +and ignoring the results. + +This function will not be called if C<.can_cache> did not return +C. The parameter C exists in case of +future NBD protocol extensions; at this time, it will be 0 on input. A +plugin must fail this function if C includes an unrecognized +flag, as that may indicate a requirement that the plugin comply must +with a specific caching semantic. + +If there is an error, C<.cache> should call C with an +error message, and C to record an appropriate error +(unless C is sufficient), then return C<-1>. + +=head2 C<.errno_is_preserved> + +This field defaults to 0; if non-zero, nbdkit can reliably use the +value of C when a callback reports failure, rather than the +plugin having to call C. + +=head1 SHUTDOWN + +When nbdkit receives certain signals it will shut down (see +L). The server will wait for any currently running +plugin callbacks to finish and also call the C<.unload> callback +before unloading the plugin. + +Note that it's not guaranteed this can always happen (eg. the server +might be killed by C or segfault). + +=head2 Requesting asynchronous shutdown + +Plugins and filters can call L in the configuration phase +(before and including C<.get_ready>, but not in connected callbacks). + +Once nbdkit has started serving connections, plugins and filters +should not call L. However they may instruct nbdkit to shut +down by calling C: + + void nbdkit_shutdown (void); + +This function requests an asynchronous shutdown and returns (I +that it does I exit the process immediately). It ensures that +the plugin and all filters are unloaded cleanly which may take some +time. Further callbacks from nbdkit into the plugin or filter may +occur after you have called this. + +=head1 PARSING COMMAND LINE PARAMETERS + +=head2 Parsing numbers + +There are several functions for parsing numbers. These all deal +correctly with overflow, out of range and parse errors, and you should +use them instead of unsafe functions like L, L and +similar. + + int nbdkit_parse_int (const char *what, const char *str, int *r); + int nbdkit_parse_unsigned (const char *what, + const char *str, unsigned *r); + int nbdkit_parse_int8_t (const char *what, + const char *str, int8_t *r); + int nbdkit_parse_uint8_t (const char *what, + const char *str, uint8_t *r); + int nbdkit_parse_int16_t (const char *what, + const char *str, int16_t *r); + int nbdkit_parse_uint16_t (const char *what, + const char *str, uint16_t *r); + int nbdkit_parse_int32_t (const char *what, + const char *str, int32_t *r); + int nbdkit_parse_uint32_t (const char *what, + const char *str, uint32_t *r); + int nbdkit_parse_int64_t (const char *what, + const char *str, int64_t *r); + int nbdkit_parse_uint64_t (const char *what, + const char *str, uint64_t *r); + +Parse string C into an integer of various types. These functions +parse a decimal, hexadecimal (C<"0x...">) or octal (C<"0...">) number. + +On success the functions return C<0> and set C<*r> to the parsed value +(unless C<*r == NULL> in which case the result is discarded). On +error, C is called and the functions return C<-1>. On +error C<*r> is always unchanged. + +The C parameter is printed in error messages to provide context. +It should usually be a short descriptive string of what you are trying +to parse, eg: + + if (nbdkit_parse_int ("random seed", argv[1], &seed) == -1) + return -1; + +might print an error: + + random seed: could not parse number: "lalala" + +=head2 Parsing sizes + +Use the C utility function to parse human-readable +size strings such as "100M" into the size in bytes. + + int64_t nbdkit_parse_size (const char *str); + +C can be a string in a number of common formats. The function +returns the size in bytes. If there was an error, it returns C<-1>. + +=head2 Parsing booleans + +Use the C utility function to parse human-readable +strings such as "on" into a boolean value. + + int nbdkit_parse_bool (const char *str); + +C can be a string containing a case-insensitive form of various +common toggle values. The function returns 0 or 1 if the parse was +successful. If there was an error, it returns C<-1>. + +=head2 Reading passwords + +The C utility function can be used to read +passwords from config parameters: + + int nbdkit_read_password (const char *value, char **password); + +For example: + + char *password = NULL; + + static int + myplugin_config (const char *key, const char *value) + { + .. + if (strcmp (key, "password") == 0) { + free (password); + if (nbdkit_read_password (value, &password) == -1) + return -1; + } + .. + } + +The C result string is allocated by malloc, and so you may +need to free it. + +This function recognizes several password formats. A password may be +used directly on the command line, eg: + + nbdkit myplugin password=mostsecret + +But more securely this function can also read a password +interactively: + + nbdkit myplugin password=- + +or from a file: + + nbdkit myplugin password=+/tmp/secret + +or from a file descriptor inherited by nbdkit: + + nbdkit myplugin password=-99 + +=head3 Notes on reading passwords + +If the password begins with a C<-> or C<+> character then it must be +passed in a file. + +C can only be used when stdin is a terminal. + +C cannot be used with stdin, stdout or stderr +(ie. C<-0>, C<-1> or C<-2>). The reason is that after reading the +password the file descriptor is closed, which causes bad stuff to +happen. + +=head2 Safely interacting with stdin and stdout + + int nbdkit_stdio_safe (void); + +The C utility function returns C<1> if it is safe +to interact with stdin and stdout during the configuration phase, and +C<0> otherwise. This is because when the nbdkit I<-s> option is used +the plugin must not directly interact with stdin, because that would +interfere with the client. + +The result of this function only matters in callbacks up to +C<.config_complete>. Once nbdkit reaches C<.get_ready>, the plugin +should assume that nbdkit may have closed the original stdin and +stdout in order to become a daemon. + +L uses this function to determine whether it is +safe to support C to read a script from stdin. Also +constructs like C (see L above) are +disabled when reading from stdio is not safe. + +=head1 FILENAMES AND PATHS + +The server usually (not always) changes directory to C before it +starts serving connections. This means that any relative paths passed +during configuration will not work when the server is running +(example: S>). + +To avoid problems, prepend relative paths with the current directory +before storing them in the handle. Or open files and store the file +descriptor. + +=head2 C + + char *nbdkit_absolute_path (const char *filename); + +The utility function C converts any path to an +absolute path: if it is relative, then all this function does is +prepend the current working directory to the path, with no extra +checks. + +Note that this function works I when used in the C<.config>, +C<.config_complete> and C<.get_ready> callbacks. + +If conversion was not possible, this calls C and returns +C. Note that this function does not check that the file exists. + +The returned string must be freed by the caller. + +=head2 C + + char *nbdkit_realpath (const char *filename); + +The utility function C converts any path to an +absolute path, resolving symlinks. Under the hood it uses the +C function, and thus it fails if the path does not exist, +or it is not possible to access to any of the components of the path. + +Note that this function works I when used in the C<.config>, +C<.config_complete> and C<.get_ready> callbacks. + +If the path resolution was not possible, this calls C +and returns C. + +The returned string must be freed by the caller. + +=head2 umask + +All plugins will see a L of C<0022>. + +=head1 SLEEPING + +A plugin that needs to sleep may call L, L and +similar. However that can cause nbdkit to delay excessively when +shutting down (since it must wait for any plugin or filter which is +sleeping). To avoid this there is a special wrapper around nanosleep +which plugins and filters should use instead. + +=head2 C + + int nbdkit_nanosleep (unsigned sec, unsigned nsec); + +The utility function C suspends the current thread, +and returns 0 if it slept at least as many seconds and nanoseconds as +requested, or -1 after calling C if there is no point in +continuing the current command. Attempts to sleep more than +C seconds are treated as an error. + +=head1 EXPORT NAME + +If the client negotiated an NBD export name with nbdkit then plugins +may read this from any connected callbacks. Nbdkit's normal behaviour +is to accept any export name passed by the client, log it in debug +output, but otherwise ignore it. By using C +plugins may choose to filter by export name or serve different +content. + +=head2 C + + const char *nbdkit_export_name (void); + +Return the optional NBD export name if one was negotiated with the +current client (this uses thread-local magic so no parameter is +required). The returned string is only valid while the client is +connected, so if you need to store it in the plugin you must copy it. + +The export name is a free-form text string, it is not necessarily a +path or filename and it does not need to begin with a C<'/'> +character. The NBD protocol describes the empty string (C<"">) as a +representing a "default export" or to be used in cases where the +export name does not make sense. B + +On error, C is called and the call returns C. + +=head1 AUTHENTICATION + +A server may use C to limit which export names work +until after a client has completed TLS authentication. See +L. It is also possible to use +L to automatically ensure that the +plugin is only used with authentication. + +=head2 C + + int nbdkit_is_tls (void); + +Return true if the client has completed TLS authentication, or false +if the connection is still plaintext. + +On error (such as calling this function outside of the context of +C<.open>), C is called and the call returns C<-1>. + +=head1 PEER NAME + +It is possible to get the address of the client when you are running +in any connected callback. + +=head2 C + + int nbdkit_peer_name (struct sockaddr *addr, socklen_t *addrlen); + +Return the peer (client) address, if available. The C and +C parameters behave like L. In particular +you must initialize C with the size of the buffer pointed to +by C, and if C is not large enough then the address will +be truncated. + +In some cases this is not available or the address returned will be +meaningless (eg. if there is a proxy between the client and nbdkit). +This call uses thread-local magic so no parameter is required to +specify the current connection. + +On success this returns C<0>. On error, C is called and +this call returns C<-1>. + +=head1 DEBUGGING + +Run the server with I<-f> and I<-v> options so it doesn't fork and you +can see debugging information: + + nbdkit -fv ./myplugin.so [key=value [key=value [...]]] + +To print debugging information from within the plugin, call +C, which has the following prototype and works like +L: + + void nbdkit_debug (const char *fs, ...); + void nbdkit_vdebug (const char *fs, va_list args); + +For convenience, C preserves the value of C, and +also supports the glibc extension of a single C<%m> in a format string +expanding to C, even on platforms that don't support +that natively. Note that C only prints things when the +server is in verbose mode (I<-v> option). + +=head2 Debug Flags + +The I<-v> option switches general debugging on or off, and this +debugging should be used for messages which are useful for all users +of your plugin. + +In cases where you want to enable specific extra debugging to track +down bugs in plugins or filters — mainly for use by the plugin/filter +developers themselves — you can define Debug Flags. These are global +ints called C: + + int myplugin_debug_foo; + int myplugin_debug_bar; + ... + if (myplugin_debug_foo) { + nbdkit_debug ("lots of extra debugging about foo: ..."); + } + +Debug Flags can be controlled on the command line using the I<-D> (or +I<--debug>) option: + + nbdkit -f -v -D myplugin.foo=1 -D myplugin.bar=2 myplugin [...] + +Note C is the name passed to C<.name> in the C. + +You should only use this feature for debug settings. For general +settings use ordinary plugin parameters. Debug Flags can only be C +ints. They are not supported by non-C language plugins. + +For convenience C<'.'> characters are replaced with C<'_'> characters +in the variable name, so both of these parameters: + + -D myplugin.foo_bar=1 + -D myplugin.foo.bar=1 + +correspond to the plugin variable C. + +=head1 COMPILING THE PLUGIN + +Plugins should be compiled as shared libraries. There are various +ways to achieve this, but most Linux compilers support a I<-shared> +option to create the shared library directly, for example: + + gcc -fPIC -shared myplugin.c -o myplugin.so + +Note that the shared library will have undefined symbols for functions +that you call like C or C. These will +be resolved by the server binary when nbdkit dlopens the plugin. + +=head2 PKG-CONFIG/PKGCONF + +nbdkit provides a pkg-config/pkgconf file called C which +should be installed on the correct path when the nbdkit plugin +development environment is installed. You can use this in autoconf +F scripts to test for the development environment: + + PKG_CHECK_MODULES([NBDKIT], [nbdkit >= 1.2.3]) + +The above will fail unless nbdkit E 1.2.3 and the header file is +installed, and will set C and C +appropriately for compiling plugins. + +You can also run pkg-config/pkgconf directly, for example: + + if ! pkg-config nbdkit --exists; then + echo "you must install the nbdkit plugin development environment" + exit 1 + fi + +You can also substitute the plugindir variable by doing: + + PKG_CHECK_VAR([NBDKIT_PLUGINDIR], [nbdkit], [plugindir]) + +which defines C<$(NBDKIT_PLUGINDIR)> in automake-generated Makefiles. + +If nbdkit development headers are installed in a non-standard location +then you may need to compile plugins using: + + gcc -fPIC -shared myplugin.c -o myplugin.so \ + `pkg-config nbdkit --cflags --libs` + +=head1 INSTALLING THE PLUGIN + +The plugin is a C<*.so> file and possibly a manual page. You can of +course install the plugin C<*.so> file wherever you want, and users +will be able to use it by running: + + nbdkit /path/to/plugin.so [args] + +However B the shared library has a name of the form +C-plugin.so> B the library is installed in the +C<$plugindir> directory, then users can be run it by only typing: + + nbdkit name [args] + +The location of the C<$plugindir> directory is set when nbdkit is +compiled and can be found by doing: + + nbdkit --dump-config + +If using the pkg-config/pkgconf system then you can also find the +plugin directory at compile time by doing: + + pkg-config nbdkit --variable=plugindir + +=head1 WRITING PLUGINS IN OTHER PROGRAMMING LANGUAGES + +You can also write nbdkit plugins in Go, Lua, OCaml, Perl, Python, +Ruby, Rust, shell script or Tcl. Other programming languages may be +offered in future. + +For more information see: +__LANG_PLUGIN_LINKS__. + +Plugins written in scripting languages may also be installed in +C<$plugindir>. These must be called C-plugin> without +any extension. They must be executable, and they must use the shebang +header (see L). For example a plugin +written in Perl called C might be installed like this: + + $ head -1 foo.pl + #!/usr/sbin/nbdkit perl + + $ sudo install -m 0755 foo.pl $plugindir/nbdkit-foo-plugin + +and then users will be able to run it like this: + + $ nbdkit foo [args ...] + +=head1 SEE ALSO + +L, +L, +L, +L. + +Standard plugins provided by nbdkit: + +__PLUGIN_LINKS__. + +=head1 AUTHORS + +Eric Blake + +Richard W.M. Jones + +Pino Toscano + +=head1 COPYRIGHT + +Copyright (C) 2013-2020 Red Hat Inc. diff --git a/docs/nbdkit-probing.pod b/docs/nbdkit-probing.pod new file mode 100644 index 0000000..55e6d19 --- /dev/null +++ b/docs/nbdkit-probing.pod @@ -0,0 +1,147 @@ +=head1 NAME + +nbdkit-probing - how to probe for nbdkit configuration and plugins + +=head1 SYNOPSIS + + nbdkit --dump-config + + nbdkit PLUGIN --dump-plugin + + nbdkit --version + + nbdkit PLUGIN --version + + nbdkit --filter=FILTER null --version + +=head1 DESCRIPTION + +You can query information about nbdkit and available plugins and +filters using the nbdkit binary. This can include whether nbdkit is +installed, and whether plugins or filters and installed. + +=head2 Query if nbdkit is installed + +Use this command to see if the nbdkit program is installed: + + nbdkit --version + +This will fail with an error and non-zero exit code if nbdkit is not +installed or not working. + +=head2 Query basic configuration + + nbdkit --dump-config + +lists information about how nbdkit was configured. The most important +fields in the output are the name of the directory where nbdkit looks +for plugins and the version of nbdkit, eg: + + plugindir=/usr/lib64/nbdkit/plugins + version=1.20.1 + version_major=1 + version_minor=20 + +=head2 Test nbdkit E version + +To test if nbdkit E a particular version is installed, use the +I<--dump-config> option and look for the C and +C fields: + + $ nbdkit --dump-config | grep ^version_minor + version_minor=20 + $ major=$( nbdkit --dump-config | grep ^version_major | cut -d= -f2 ) + $ minor=$( nbdkit --dump-config | grep ^version_minor | cut -d= -f2 ) + $ if [ $major -eq 1 ] && [ $minor -lt 12 ] + then echo 'nbdkit >= 1.12 is required'; exit 1; fi + +These fields were first added in nbdkit 1.16.5 and were not present in +earlier versions. + +You can also probe the minimum version using L. See +L. + +=head2 Query information about a particular plugin + + nbdkit pluginname --dump-plugin + +(where I is the name or full path of a plugin) will dump +information about that plugin, eg: + + $ nbdkit file --dump-plugin + path=/usr/lib64/nbdkit/plugins/nbdkit-file-plugin.so + name=file + version=1.20.1 + api_version=1 + struct_size=176 + thread_model=serialize_requests + [etc] + +Plugins which ship with nbdkit usually have the same version as the +corresponding nbdkit binary. The nbdkit binary will always be able to +utilize plugins compiled against an older version of the header; +however, newer plugins may not be fully supported by an older nbdkit +binary (for example, a plugin compiled with C of 2 +fails to load with an older nbdkit that only knows +C 1). + +=head2 Detect if a plugin is installed + +To find out if a plugin is installed (and working) in the plugin +directory, use: + + $ nbdkit foo --version + nbdkit: error: cannot open plugin 'foo': /usr/lib64/nbdkit/plugins/nbdkit-foo-plugin.so: cannot open shared object file: No such file or directory + Use 'nbdkit --help' or read the nbdkit(1) manual page for documentation. + +This will fail with an error and non-zero exit code if the C +plugin cannot be loaded. + +Note it is better to test for the existence of plugins this way rather +than just seeing if the F<.so> file exists, because nbdkit will load +the plugin and check that all its dependencies can be satisfied, and +also that plugin registration works. + +=head2 List all plugins in the plugin directory + +You could simply get the plugin directory (from I<--dump-config>) and +list all files in this directory called F. + +However a better test is to run I<--dump-plugin> (see above) on each +one to check that it is working and all of its dependencies are +installed. A complete shell script which does this is: + + #!/bin/sh - + plugindir=`nbdkit --dump-config | grep ^plugindir= | sed 's/[^=]*=//'` + for f in $plugindir/nbdkit-*-plugin.so; do + if nbdkit "$f" --version >/dev/null 2>&1; then + b=`echo "$f" | sed 's,.*/nbdkit-\(.*\)-plugin.so$,\1,'` + echo "$b ($f)" + fi + done + +=head2 Detect if a filter is installed + +To find out if a filter is installed (and working) use I<--version> +with the C plugin and the name of the filter to test: + + nbdkit --version --filter=foo null + +This will fail with an error and non-zero exit code if the C +filter cannot be loaded. + +=head1 SEE ALSO + +L. + +=head1 AUTHORS + +Eric Blake + +Richard W.M. Jones + +Pino Toscano + +=head1 COPYRIGHT + +Copyright (C) 2013-2020 Red Hat Inc. diff --git a/docs/nbdkit-protocol.pod b/docs/nbdkit-protocol.pod new file mode 100644 index 0000000..8fe8c67 --- /dev/null +++ b/docs/nbdkit-protocol.pod @@ -0,0 +1,223 @@ +=head1 NAME + +nbdkit - which parts of the NBD protocol nbdkit supports + +=head1 SYNOPSIS + + nbdkit [-n|--newstyle] [--mask-handshake MASK] [--no-sr] [-o|--oldstyle] + [...] + +=head1 DESCRIPTION + +This page documents the level of support in nbdkit for various parts +of the NBD protocol. + +=head1 NEW STYLE VS OLD STYLE PROTOCOL + +The NBD protocol comes in two incompatible forms that we call +"oldstyle" and "newstyle". Unfortunately which protocol you should +use depends on the client and cannot be known in advance, nor can it +be negotiated from the server side. + +nbdkit defaults to the newstyle protocol since nbdkit E 1.3. The +newstyle protocol is better in every respect than the oldstyle +protocol and you should prefer it if possible. The newstyle protocol +also includes an extension where a client may request structured +replies for even more capabilities, such as sparse reads or obtaining +block status. By default, nbdkit advertises as many features as it +can support (in some cases, this can be limited by what callbacks the +plugin handles), even if the client does not negotiate to use all +advertised features. + +Nbdkit also includes some options that are useful mainly when +performing integration tests, for proving whether clients have sane +fallback behavior when dealing various older servers permitted by the +NBD protocol. Use the I<--no-sr> flag to force the newstyle protocol +to decline any client request for structured replies. Use the +I<--mask-handshake> parameter to mask off particular global features +which are advertised during new-style handshake (defaulting to all +supported bits set). Clearing bit 0 (the low order bit) limits a +client to using just C (and is incompatible with +TLS or structured replies); clearing bit 1 causes the handshake to +send more padding bytes in response to C. Other +bits in the mask will only have an effect if the NBD protocol is +extended in the future to define other global bits. + +Use the I<-o> or I<--oldstyle> flag to force the oldstyle protocol. +In this mode, I<--no-sr> and I<--mask-handshake> have no effect. + +=head2 Common clients and the protocol they require + + Client Protocol + ------------------------------------------------------------ + qemu <= 2.5 without exportname oldstyle + qemu <= 2.5 with exportname newstyle + qemu >= 2.6 client can talk either protocol + qemu >= 2.11 client tries structured replies + nbd-client < 3.10 client can talk either protocol + nbd-client >= 3.10 newstyle, no structured replies + any TLS (encrypted) client newstyle + nbdkit nbd plugin client can talk either protocol + nbdkit >= 1.13.3 nbd plugin tries structured replies + libnbd either protocol, tries structured replies + +=head2 Errors seen if using the wrong protocol + +If you use qemu E 2.5 without the exportname field against a +newstyle server, it will give the error: + + Server requires an export name + +If you use qemu E 2.5 with the exportname field against an +oldstyle server, it will give the error: + + Server does not support export names + +If you use the oldstyle protocol with nbd-client E 3.10, it will +give the error: + + Error: It looks like you're trying to connect to an oldstyle server. + +=head2 NBD protocol and port number + +Port 10809/tcp is reserved by IANA for the NBD protocol, but you can +use nbdkit on any port or on Unix domain sockets. + +The NBD protocol specification claims that you should always use +newstyle when using port 10809, and use oldstyle on all other ports, +but this claim is not based on the reality of what NBD servers do, and +nbdkit does not require or encourage this. + +=head1 NBD PROTOCOL FEATURES SUPPORTED BY NBDKIT + +=over 4 + +=item newstyle protocol + +Supported in nbdkit E 1.1.12, and the default in nbdkit E 1.3. + +=item export names + +Partially supported in nbdkit E 1.1.12. Support for plugins to +read the client export name added in nbdkit E 1.15.2. + +Versions of nbdkit before 1.16 could advertise a single export name to +clients, via a now deprecated side effect of the I<-e> option. In nbdkit +1.15.2, plugins could read the client requested export name using +C and serve different content. + +=item C + +Supported in nbdkit E 1.1.13. + +This protocol optimization avoids sending a useless block of zero +bytes during protocol negotiation. + +=item C + +Supported in nbdkit E 1.1.13. + +=item TLS with X.509 certificates + +Supported in nbdkit E 1.1.15. + +=item TLS with Pre-Shared Keys (PSK) + +Supported in nbdkit E 1.4.0. + +=item C + +Supported in nbdkit E 1.5.3. + +This protocol enhancement allows the server to return errors when +negotiating the export name. + +=item C + +Supported in nbdkit E 1.9.3. + +This protocol enhancement allows a client to inspect details about +the export without actually connecting. + +=item C + +Supported in nbdkit E 1.9.9. + +=item Structured Replies + +Supported in nbdkit E 1.11.8. + +However we don’t expose the capability to send structured replies to +plugins yet, nor do we send human-readable error messages using this +facility. + +In nbdkit E 1.13.9>, the command-line option I<--no-sr> can be +used to disable server support for structured replies, for testing +client fallbacks. + +=item Metadata Querying + +Supported in nbdkit E 1.11.8. + +=item Block Status + +Supported in nbdkit E 1.11.10. + +Only C (ie. querying which parts of an image are +sparse) is supported. + +Sparse reads (using C are not directly +supported, but a client can use block status to infer which portions +of the export do not need to be read. + +=item C + +Supported in nbdkit E 1.11.11. + +This protocol extension allows a client to force an all-or-none read +when structured replies are in effect. However, the flag is a no-op +until we extend the plugin API to allow a fragmented read in the first +place. + +=item C + +Supported in nbdkit E 1.13.4. + +This protocol extension allows a client to inform the server about +intent to access a portion of the export, to allow the server an +opportunity to cache things appropriately. + +=item C + +Supported in nbdkit E 1.15.0. + +This protocol extension allows a server to advertise that it can rank +all zero requests as fast or slow, at which point the client can make +fast zero requests which fail immediately with C if the +request is no faster than a counterpart write would be, while normal +zero requests still benefit from compressed network traffic regardless +of the time taken. + +=item Resize Extension + +I. + +=back + +=head1 SEE ALSO + +L, +L, +L. + +=head1 AUTHORS + +Eric Blake + +Richard W.M. Jones + +Pino Toscano + +=head1 COPYRIGHT + +Copyright (C) 2013-2020 Red Hat Inc. diff --git a/docs/nbdkit-release-notes-1.10.pod b/docs/nbdkit-release-notes-1.10.pod new file mode 100644 index 0000000..03901c8 --- /dev/null +++ b/docs/nbdkit-release-notes-1.10.pod @@ -0,0 +1,131 @@ +=head1 NAME + +nbdkit-release-notes-1.10 - release notes for nbdkit 1.10 + +=head1 DESCRIPTION + +These are the release notes for nbdkit stable release 1.10. +This describes the major changes since 1.8. + +nbdkit 1.10.0 was released on 18th January 2019. + +=head2 New features + +=over 4 + +=item * + +Implemented C which greatly improves +performance for clients that support it. + +=item * + +Implemented C (Eric Blake). + +=item * + +L and L: By adding +fine-grained locking, these plugins now use the fully parallel thread +model. + +=item * + +L: The size of the cache can now be limited, +and the cache reclaims space using an LRU algorithm. It has also been +enhanced to support cache-on-read mode. The filter now uses a fully +parallel thread model. + +=item * + +L: Use a fully parallel thread model. + +=item * + +L: Inline scripts: +L + +=item * + +L: Full API version 2 is now supported. + +=item * + +L: Full API version 2 is now supported. + +=item * + +L allows you to specify the read, write, zero +and trim delays individually. + +=item * + +L: Add support for connecting to servers over +Unix domain sockets. + +=item * + +Bash tab completion has been improved: Partial plugin names are +expanded correctly, and plugin parameters containing C<-> work. + +=item * + +Public header files can now be consumed by ISO C90 compilers (but +GCC or Clang is still required to compile nbdkit itself). + +=item * + +A better non-cryptographically secure pseudo-random number generator +(xoshiro256** 1.0) is now used on all platforms, replacing previous +uses of L. + +=item * + +Fuzzing using American Fuzzy Lop is now supported, and was carried +out, resulting in one error being found in the server (not security +related). + +=item * + +New L: This replaces nbdkit-xz-plugin which will +be removed in nbdkit 1.12. + +=item * + +New L man page documenting how to use nbdkit for loop +mounts. See also: L + +=item * + +New L: Returns C on every request. + +=item * + +C, C and +C are used in internal header files to improve +code quality. + +=item * + +Logging using C<%m> now works on all platforms, not just on Linux with +glibc (Eric Blake). + +=item * + +VPATH builds partially supported (Eric Blake). + +=back + +=head1 SEE ALSO + +L, +L. + +=head1 AUTHORS + +Eric Blake + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2019 Red Hat Inc. diff --git a/docs/nbdkit-release-notes-1.12.pod b/docs/nbdkit-release-notes-1.12.pod new file mode 100644 index 0000000..115dc38 --- /dev/null +++ b/docs/nbdkit-release-notes-1.12.pod @@ -0,0 +1,105 @@ +=head1 NAME + +nbdkit-release-notes-1.12 - release notes for nbdkit 1.12 + +=head1 DESCRIPTION + +These are the release notes for nbdkit stable release 1.12. +This describes the major changes since 1.10. + +nbdkit 1.12.0 was released on 10th April 2019. + +=head2 New features + +New L which lets you turn any disk image on a +remote Unix server accessible by ssh into an NBD source. + +New L for bandwidth-limiting connections. +Either single connections or the whole server can be +bandwidth-limited, and the limit can be dynamically changed at +runtime. + +New L improves performance when reading +sequentially from plugins with a high request overhead like curl. + +New L lets you create complete ext2, ext3 +or ext4 filesystems in a GPT partitioned disk image, from a local +directory. This can be attached to existing Linux VMs or used to +create new ones from scratch. + +New L can make sparse disks appear fully +allocated. + +Plugins can now be written in the Rust programming language, see +L. + +The old L has been removed. Use + + nbdkit --filter=xz file file.xz + +as a replacement. This filter can be placed on top of other plugins +such as curl (for decompressing a remote web URL). + +C has been implemented allowing clients to query +which parts of the disk are allocated, holes or zeroes. Plugins and +filters have been extended to supply this information in many cases. +This required adding minimal support for NBD protocol Structured +Replies, C and C. (Thanks to +Eric Blake for extensive help with this one.) + +L has been updated to VDDK 6.7, but now also +works back as far as VDDK 5.1.1. It supports extents, flush and FUA. +Also added: new flags C and C. (Thanks to +Martin Kletzander). + +The line "All rights reserved." was removed from the license, with the +agreement of all nbdkit contributors. Note this does not change the +license. + +C errors are printed in red when writing to the +terminal, making them much easier to see. + +C rejects negative values, eg. +S> (Nikolay Ivanets). + +L now supports cookies, password auth and +proxies. It can also limit URLs to whitelisted protocols. This makes +it broadly feature equivalent to and a replacement for the qemu curl +block driver. + +L can now create MBR logical +partitions. Previously it only supported 4 MBR primary partitions and +if you wanted more than that you had to use GPT. + +L also supports MBR logical partitions. + +L creates plugins which are compatible with +Python >= 3.7. + +Tests are now run under C and +C>. This causes some tests to crash +(silently) because of a shutdown race which needs to be fixed. + +Test shell scripts now have a generic C function to skip +tests if features are not present. + +C99 type C is now used in most places where appropriate. + +The protocol and connections code in the server has been split up +because the single file had grown very large. (Thanks to Eric Blake +for helping with protocol issues). + +=head1 SEE ALSO + +L, +L. + +=head1 AUTHORS + +Eric Blake + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2019 Red Hat Inc. diff --git a/docs/nbdkit-release-notes-1.14.pod b/docs/nbdkit-release-notes-1.14.pod new file mode 100644 index 0000000..69ab431 --- /dev/null +++ b/docs/nbdkit-release-notes-1.14.pod @@ -0,0 +1,145 @@ +=head1 NAME + +nbdkit-release-notes-1.14 - release notes for nbdkit 1.14 + +=head1 DESCRIPTION + +These are the release notes for nbdkit stable release 1.14. +This describes the major changes since 1.12. + +nbdkit 1.14.0 was released on 28th August 2019. + +=head2 New features + +Server performance improvements: Nagle’s algorithm is disabled; +instead C is used to control when outgoing packets are sent. +Ramdisk plugins now support more efficient zeroing. (Eric Blake). + +Plugins can now select their thread model at run time. Thread model +selection is not finalized until after the config stage (Eric Blake). + +The server supports C for prefetching. Plugins and +filters have been updated to implement this where it makes sense (Eric +Blake). + +Low level pthread lock failures now call L. This should +never happen in real situations (Eric Blake). + +The server will not advertize multi-conn support if the internal +thread model is serialized, avoiding a possible deadlock in some +clients (Eric Blake). + +New server option I<--no-sr> can be used to disable structured replies +(Eric Blake). + +The server will now refuse to start if stdin/stdout/stderr are closed, +to avoid potential issues with file descriptor handling in plugins +(Eric Blake). + +C<$uri> can be used to specify an NBD URI in I<--run> parameters (Eric +Blake). + +New L displays elapsed statistics about NBD +operations, such as the number of bytes read and written. + +New L which disables cache requests, used to +determine how effective they are (Eric Blake). + +New L which can be used to override the +plugin’s own choice of thread model. Used to determine how the thread +model affects performance, or to serialize plugins if required (Eric +Blake). + +New L to cache extents requests, +especially useful with VDDK which has a slow implementation of extents +(Martin Kletzander). + +In L, L, +L, L and +L, the C prefix can be omitted, ie: +S> (instead of C). + +L has multiple enhancements (all added by Eric +Blake): + +=over 4 + +=item * + +It may be built using libnbd instead of constructing raw NBD packets. + +=item * + +C is supported. + +=item * + +Add structured reads. + +=item * + +Implement C. + +=item * + +Supports TCP sockets. + +=item * + +Forwards C. + +=item * + +Retry connections. + +=item * + +Shared connections. + +=item * + +Magic C parameter. + +=item * + +TLS support. + +=back + +L now reports hole extents correctly when using +the C flag (Martin Kletzander). + +L and L now avoid +copying data through a bounce buffer when it is already sufficiently +aligned (Eric Blake). + +Filters (such as L and +L) which sleep no longer cause long delays when +the server is shut down (Eric Blake). + +Multiple fixes to L (Martin Kletzander). + +Multiple enhancements and clean ups to the test suite which should +make tests better and more reliable. + +OCaml plugins can now use C, C, +C calls, and there is also a new example plugin. + +On platforms which lack atomic C support the most +serialized thread model is always selected to avoid leaking file +descriptors (Eric Blake). + +=head1 SEE ALSO + +L, +L. + +=head1 AUTHORS + +Eric Blake + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2019 Red Hat Inc. diff --git a/docs/nbdkit-release-notes-1.16.pod b/docs/nbdkit-release-notes-1.16.pod new file mode 100644 index 0000000..7e8d76f --- /dev/null +++ b/docs/nbdkit-release-notes-1.16.pod @@ -0,0 +1,172 @@ +=head1 NAME + +nbdkit-release-notes-1.16 - release notes for nbdkit 1.16 + +=head1 DESCRIPTION + +These are the release notes for nbdkit stable release 1.16. +This describes the major changes since 1.14. + +nbdkit 1.16.0 was released on 14th November 2019. + +=head2 Security + +Two security issues were found during development of nbdkit 1.16. +Fixes for these were backported to older stable branches. Upgrading +to the fixed versions is highly recommended. The new +L man page contains an up to date list of past +security issues. + +=head3 CVE-2019-14850 +denial of service due to premature opening of back-end connection + +See the full announcement and links to mitigation, tests and fixes +here: +https://www.redhat.com/archives/libguestfs/2019-September/msg00084.html + +=head3 CVE-2019-14851 +assertion failure by issuing commands in the wrong order + +This CVE was caused by the fix to the previous issue. + +See the full announcement and links to mitigation, tests and fixes +here: +https://www.redhat.com/archives/libguestfs/2019-September/msg00272.html + +=head2 New features + +Add support for fast zeroing. Plugins can expose this using the new +C<.can_fast_zero> method (Eric Blake). + +L allows use of C or +C to go back to the default MBR byte or partition +type GUID. + +New I<--mask-handshake> server flag can be used for testing client +feature negotiation (Eric Blake). + +The client export name is passed to L I<--run> +parameter as C<$exportname> (Eric Blake). + +Captive I<--run> commands which fail (eg. aborting) now cause nbdkit +to exit with an error instead of errors being silently ignored (Eric +Blake). + +File descriptors can be passed to password parameters, eg: +C which means that the password should be read from file +descriptor 3. + +nbdkit can now serve over the C protocol (thanks Stefan +Hajnoczi). + +New I<--log=null> option discards error messages. + +=head2 Plugins + +Python 2 support has been B from L +in line with Python 2 end of life at the beginning of 2020. Python +E 3.3 is required by this plugin. If you wish to continue to use +Python 2 then you will need to use nbdkit 1.14. + +New L which returns various server information +back to the client. It can be used for testing server latency amongst +other things. + +L now allows you to write C to get +repeated bytes (eg. S>). + +L new parameter C to +control transport compression. + +L is no longer compiled on non-x86 platforms +since VMware has only ever shipped VDDK on x86. + +L scripts can now see the client exportname and +can use the C feature. + +=head2 Filters + +New L which can reopen the plugin +transparently on certain types of failures (lots of help from Eric +Blake). + +=head2 API + +Macros C, C, +C expose the compile-time version of nbdkit to +plugins and filters (Eric Blake). + +Filters (which unlike plugins do I have a public stable API) must +now exactly match the version of nbdkit when loaded (Eric Blake). + +New C<.can_fast_zero> method (Eric Blake). + +New C server function for reading the export name +passed by the client. + +New C server function to return the client address +(like L). + +New server functions for safely parsing integers: C, +C, C, +C, C, +C, C, +C, C, +C. + +=head2 Bug fixes + +C<.trim> with FUA flag set now works (Eric Blake). + +=head2 Documentation + +The previous release notes have been turned into man pages. + +=head2 Tests + +Several tests now optionally use L instead of qemu-io. + +You can now fuzz nbdkit using either American Fuzzy Lop or clang’s +libFuzzer. + +Several tests have had sleep times increased to make them more stable +when run on slow or heavily loaded machines. + +=head2 Internals + +Reproducible builds (Chris Lamb). + +Compile code with I<-Wshadow> warning (Eric Blake). + +The internal backend system has been extensively overhauled. In +particular this means that we now validate request ranges as requests +are passed between filters and down to the plugin, making it easier to +find bugs in filters early (Eric Blake). + +Plugin size and C flags are cached more aggressively by the +server (Eric Blake). + +Variable Length Arrays (VLAs) on stack are now banned throughout the +code. + +The F header describing the NBD protocol is now shared +with L. + +Plugin C<.unload> method is now called after all worker threads have +exited, avoiding races at server shutdown. + +Code was audited using Coverity and various problems were fixed. + +=head1 SEE ALSO + +L. + +=head1 AUTHORS + +Eric Blake + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2019 Red Hat Inc. diff --git a/docs/nbdkit-release-notes-1.18.pod b/docs/nbdkit-release-notes-1.18.pod new file mode 100644 index 0000000..8fc25fc --- /dev/null +++ b/docs/nbdkit-release-notes-1.18.pod @@ -0,0 +1,210 @@ +=head1 NAME + +nbdkit-release-notes-1.18 - release notes for nbdkit 1.18 + +=head1 DESCRIPTION + +These are the release notes for nbdkit stable release 1.18. +This describes the major changes since 1.16. + +nbdkit 1.18.0 was released on 27th February 2020. + +=head2 Security + +There were no security issues found. All past security issues and +information about how to report new ones can be found in +L. + +=head2 Plugins + +New L lets you write a plugin entirely on a +single command line. It is similar to L. + +L is deprecated and will be removed in the next +release after this one (S). As a replacement use +L like this: + + nbdkit --filter=ext2 file fs.img ext2file=/disks/disk.raw + +L now offers a version 2 API which avoids +copying the data buffer, improving performance. The original protocol +(now retrospectively called version 1) is still supported for +backwards compatibility. The version 1 protocol was also enhanced to +support the buffer protocol for the pread method, and memoryview for +pwrite, improving performance by reducing copies (Nir Soffer). + +The Python plugin now prints readable stack traces when an exception +is thrown (Nir Soffer). + +New methods implemented in the Python plugin: cache, can_cache, +can_zero, can_fast_zero, can_multi_conn, can_fua. + +In L, new options C and C +(Wiktor Gołgowski). + +L now supports extents (Eric Blake). + +In L, C is now a magic config key, +meaning it can be omitted in most circumstances (Eric Blake). + +The VDDK plugin now no longer needs C<$LD_LIBRARY_PATH> to be set. +The correct library load path is automatically inferred from the +C parameter (Eric Blake). + +Verbose messages about calls to VDDK functions Read and Write can now +be suppressed by setting S>. + +=head2 Filters + +New L, which replaces the deprecated +nbdkit-ext2-plugin. This filter allows you to read and write files +inside ext2, ext3 or ext4 filesystems. The new filter has the same +features as the plugin, and one enhancement: optionally the name of +the file to serve can be picked from the client-supplied exportname. +The old plugin will be removed in S (Eric Blake). + +New L lets you specify a static list of +extents from a file which can be placed on top of plugins which don't +export extent information. + +New L lets you allow and deny incoming +connections by client IP address, similar to TCP wrappers or a +firewall. + +New L is a null filter, used for testing. + +The stats filter now collects time elapsed per operation, per +operation and total rates, and adds stats for the flush method. The +output is shown in human sizes making it easier to understand. (Nir +Soffer). + +=head2 Server + +New I<--swap> option which allows nbdkit to be safely used to serve +swap space to the same machine. + +Debug flags (I<-D>) can now be applied to the server core (using +S>). Underscores in debug flags can now be replaced by +dots, allowing a kind of namespacing. Debug flags which are not +consumed now no longer give an error, so you can use them without +needing to detect if the plugin supports them. New server debug flags +S> and +S> were added to suppress some very +verbose messages when verbose mode is enabled. + +=head2 API + +There is a new C<.get_ready> method which is called after +C<.config_complete> and before the server forks or changes directory. +It is the last chance to do any global preparation that is needed to +serve connections. Plugins have previously done this work in +C<.config_complete>, but by splitting this into a new method it makes +the API clearer. (Note that existing plugins may continue to use +C<.config_complete> for this work if they prefer.) + +There is a new C<.preconnect> method available which is called just +after the client makes a connection but before any NBD negotiation or +TLS authentication is done. It can be used for early whitelisting or +rate limiting of connections, and in particular is used by the new +L. + +=head2 Bug fixes + +In L, C is +used (if available) so that file sizes up to 63 bits should now work +on all platforms (Pino Toscano and Adrian Ambrożewicz). + +nbdkit is now compatible with OCaml 4.10. + +L now supports C (Eric Blake). + +=head2 Documentation + +Plugins which were actually added in S are now +documented as such properly. + +Improved methods for probing plugins and filters are documented in +L. + +=head2 Tests + +Old plugins from nbdkit 1.0, 1.2, 1.8 and 1.12 are now bundled with +the nbdkit sources and tested to try to ensure that they do not +accidentally regress. Note these are included as binary blobs. See +F for more information about this, including +how to delete these tests. + +Various tests, especially ones which rely on timeouts, have been made +more stable so they should not fail on slow or overloaded machines. + +Many tests now use libnbd and nbdsh (instead of libguestfs and +guestfish) as the test client. This should improve the performance of +the tests for most people. + +The I<--vsock> option (added in nbdkit 1.16) can now be tested if the +host is running Linux E 5.6 (Stefano Garzarella). + +=head2 Build + +You can use C<./configure --disable-nbd-plugin> to completely +disable the NBD plugin. + +The automake feature C is no longer used, which may +improve compatibility on platforms with ancient and buggy automake +(S being one such platform). + +=head2 Internals + +The explicit connection parameter passed around many functions in the +server is now fetched from thread-local storage. + +The server no longer calls the finalize method if prepare fails. Also +failing to reopen the plugin from L no longer +hangs (Eric Blake). + +C was enhanced to make patches easier to read (Eric +Blake). + +Internal calls to methods like get_size, can_write will now no longer +produce debug messages I the data is simply being returned from +the internal cache (but calls into the plugin are still logged). + +=head1 SEE ALSO + +L. + +=head1 AUTHORS + +Authors of nbdkit 1.18: + +=over 4 + +=item Adrian Ambrożewicz + +(1 commit) + +=item Eric Blake + +(30 commits) + +=item Wiktor Gołgowski + +(1 commit) + +=item Richard W.M. Jones + +(130 commits) + +=item Nir Soffer + +(11 commits) + +=item Pino Toscano + +(1 commit) + +=back + +=head1 COPYRIGHT + +Copyright (C) 2020 Red Hat Inc. diff --git a/docs/nbdkit-release-notes-1.20.pod b/docs/nbdkit-release-notes-1.20.pod new file mode 100644 index 0000000..d372e11 --- /dev/null +++ b/docs/nbdkit-release-notes-1.20.pod @@ -0,0 +1,181 @@ +=head1 NAME + +nbdkit-release-notes-1.20 - release notes for nbdkit 1.20 + +=head1 DESCRIPTION + +These are the release notes for nbdkit stable release 1.20. +This describes the major changes since 1.18. + +nbdkit 1.20.0 was released on B<2nd May 2020>. + +=head2 Security + +There were no security issues found. All past security issues and +information about how to report new ones can be found in +L. + +=head2 Plugins + +New L is a scriptable “remote tmpfs” for +creating temporary filesystems (eg. for thin clients), and also for +blank or prepopulated temporary disks. + +L now has support for prepopulating disks with +more complex test patterns such as repeated sequences of bytes. + +L now supports setting a proxy, enabling TCP +keepalives, and disabling Nagle’s algorithm. + +L now supports API version 2. In particular +the full NBD client flags are visible to plugins, along with support +for the C<.get_ready> callback. Also there is a new function +C which is a wrapper around the C API. + +L drops support for VDDK 5.1.1. This version +was last updated in 2014 and is no longer supported by VMware. Since +this was the last version of VDDK to support i686, 32-bit support is +also dropped (Eric Blake). + +=head2 Language bindings + +Plugins may now be written in Golang, see L +(thanks Dan Berrangé, James Shubin). + +OCaml plugins can now access C, C, +C and C. + +Python plugins now transparently support fail-fast zero (Eric Blake). + +=head2 Filters + +New L causes nbdkit to exit after the last +client connection. + +New L allows you to limit the number of +clients which can simultaneously connect to any plugin. + +=head2 Server + +The I<--run> option now waits for the nbdkit plugin and nbdkit to exit +before returning to the caller. This allows for more predictable +clean up in shell scripts using this feature. + +nbdkit I<--dump-config> output now includes separate lines for +C and C, making it easier to find out +from shell scripts which version of nbdkit is installed. + +nbdkit I<-s> option (which connects to the client over stdin/stdout) +now rejects various options that would also try to read from or write +to stdin/stdout, for example I<--dump-plugin> or C +(Eric Blake). + +=head2 API + +New C call which allows plugins to ask for nbdkit +to exit. This is used to implement the new C filter. + +New C call allows plugins to check if reading from +stdin or writing to stdout is safe, eg. if it is safe to read +passwords interactively (Eric Blake). + +C callbacks which return booleans can return any value E 1 +to mean true. Previous versions of nbdkit had inconsistent behaviour +if plugins returned anything other than 1 for true (Eric Blake). + +=head2 Bug fixes + +L now works and there is a regression test for +it. + +L C<-D curl.version=1> option now works. + +Fixed a rare hang when closing a connection in L +(Eric Blake). + +Fix compilation on certain platforms with clang (Khem Raj). + +Don’t leak C<$tmpdir> from L into the I<--run> +subcommand. + +nbdkit now correctly sets C when using systemd socket +activation (Eric Blake). + +=head2 Documentation + +The L man page has been overhauled completely to +make it easier to follow. Also we now have documentation for how to +compile plugins in various environments which was missing before. + +=head2 Tests + +All valgrind tests now pass. + +“Old plugin” tests were added for v1.18.2 on x86-64, and a variety of +old plugins compiled on i686. The i686 plugins will allow us to test +for regressions in 32 bit support. + +Tests of the nbd plugin should now be stable (Eric Blake). + +There is an additional test combining the offset and truncate filters, +which tests several corner cases as well as providing tests of error +handling between layers. + +=head2 Build + +L now requires libnbd. (If libnbd is not +present at build time then this plugin is not built). The fallback +code in this plugin which made NBD connections by constructing NBD +command packets without using libnbd has been removed (Eric Blake). + +F has been improved so that commands like +S> and S> display OCaml sources in a natural +order with interface first followed by implementation. + +Various fixes for MinGW. Note MinGW / MSYS support is a work in +progress and not finished yet (Frank Gu). + +Multiple fixes to Haiku build. + +L is no longer required to run the tests. It was a “hidden” +required dependency, but all use of it has now been eliminated. + +=head2 Internals + +There is now an internal utility library for creating vectors/lists of +objects, for example lists of strings (F). It +is widely used by the server, plugins and filters. + +F discusses how to use L for code coverage reports. + +=head1 SEE ALSO + +L. + +=head1 AUTHORS + +Authors of nbdkit 1.20: + +=over 4 + +=item Eric Blake + +(33 commits) + +=item Khem Raj + +(1 commit) + +=item Richard W.M. Jones + +(134 commits) + +=item Frank Gu + +(6 commits) + +=back + +=head1 COPYRIGHT + +Copyright (C) 2020 Red Hat Inc. diff --git a/docs/nbdkit-release-notes-1.22.pod b/docs/nbdkit-release-notes-1.22.pod new file mode 100644 index 0000000..3bafed5 --- /dev/null +++ b/docs/nbdkit-release-notes-1.22.pod @@ -0,0 +1,250 @@ +=head1 NAME + +nbdkit-release-notes-1.22 - release notes for nbdkit 1.22 + +=head1 DESCRIPTION + +These are the release notes for nbdkit stable release 1.22. +This describes the major changes since 1.20. + +nbdkit 1.22.0 was released on B<27 August 2020>. + +=head2 Security + +There were no security issues found. All past security issues and +information about how to report new ones can be found in +L. + +=head2 Plugins + +New L (Containerized Data Importer) lets you +export a single layer from a container image, allowing you to access +disk images distributed using container registry infrastructure. + +New L creates filesystems for clients on +demand. + +New L serves a BitTorrent file or magnet +link over NBD. + +L and L have a new +C parameter giving more fine-grained control over the +allocation strategy. Currently implemented strategies are: sparse +array, sparse array with zstd compression, malloc, and malloc with +mlock. + +L data format now supports strings and +alignment. The C script has been enhanced to detect +repeated sequences and produce a more compact output. + +L adds support for arbitrary custom request +headers. Also it now supports scripts for generating cookies and +custom request headers. This is especially useful when accessing web +servers that require authentication which has to be renewed +periodically. + +L now supports HTTP/2 servers +(David Edmondson, Pino Toscano, Zi Liu). + +L adds support for the C header. + +L can export multiple files in a directory as +separate exports (Eric Blake). + +L supports new C and +C parameters which can be used to +optimize access patterns and avoid filling the page cache. + +L supports proxying to another NBD server over +C (Eric Blake). + +L supports new C and C +parameters which allow you to run a subordinate NBD server as a +command directly from the plugin, or pass in an already connected NBD +endpoint. + +L supports streaming to and from local +pipes. + +L now has support for VDDK 7.0. A new and +useless "error" message printed by VDDK 7 has been suppressed +(thanks Ming Xie, Pino Toscano). + +L has been removed. It was deprecated in +S. All existing uses can be replaced with +L. + +The C<-> character is now permitted within plugin and filter names +(Eric Blake). + +=head2 Filters + +New L lets you test disk images recovered +by L (François Revol). + +New L can decompress a plugin that contains +gzip-compressed data. It replaces L which is +deprecated and will be removed in S. + +New L can temporarily stop and later resume +NBD requests. This can be used when taking snapshots. + +New L swaps bytes in the underlying plugin, +which can be used to adjust images that have an incorrect byte order +(François Revol). + +New L reads and writes files inside a tar file +in the underlying plugin. It replaces L which +is deprecated and will be removed in S. + +New L provides alternate content when a +client connects without using TLS to a server that permits but does +not require TLS (Eric Blake). + +L has new option C to pass through +FUA and flush requests unchanged (disabling the filter). A new, +unsafe C mode was added which discards FUA and flush +requests. + +=head2 Language bindings + +New L lets you write small nbdkit plugins as +inline C, C++ or OCaml "scripts" (and potentially other ahead-of-time +compiled programming languages). + +L bindings have been replaced by higher level +and more idiomatic bindings. These also support a greater range of +server features (Alan Somers). + +L now supports parallel plugins. These +cannot run Python code in parallel (because of the Python GIL), but +for Python code that blocks, eg. calling out to external services, +requests can now be handled in parallel (thanks Nir Soffer). + +L has a greater range of examples (Nir Soffer). + +L adds support for getting the client export +name, calling C, and also for extents. + +=head2 Server + +C has new fields: C and +C to allow easier version parsing from scripts. +C and C so you can find out if nbdkit was +cross-compiled for another platform. C so you can find +out if nbdkit was compiled with zstd compression support. + +The I<-e>/I<--exportname> option (which never did anything useful +previously) is now used to pass the preferred exportname to the +I<--run> option. In general you should never use this option except +in very limited and exceptional circumstances (Eric Blake). + +=head2 API + +New C<.after_fork> callback which can be used for plugins which need +to create background threads, since those threads would otherwise be +stranded if the server forks into the background. The VDDK plugin now +defers VDDK library initialization til C<.after_fork> because it is +thought that the library creates background threads especially when +accessing remote servers. + +New API C is a helper function for filters +that retrieves extents as needed until at least a certain range is +covered (Eric Blake). + +New C can be called to determine if TLS was negotiated +on the connection. Plugins could use this to hide certain exports +from non-authenticated/non-encrypted clients (Eric Blake). + +C with C will now return an error if +the input is not a tty. Also C is disallowed if the +file descriptor is 0, 1 or 2. + +=head2 Bug fixes + +The VDDK plugin was extensively refactored to fix many bugs: Reading +passwords from a tty should work again. The plugin should now work +properly when daemonized or using the I<--run> option. The threading +model has been relaxed to C which should give +small performance improvements when using multiple connections. + +The C option of L has been fixed so it +sets the implicit size correctly. + +The CFILE> formatter of L now works if +you use it more than once. + +=head2 Documentation + +New L manual page documents how to mount filesystems +from NBD exports on client machines, either directly or using systemd +mountpoints. + +Examples now use C so that the examples match +the documentation. + +=head2 Tests + +The tests should now pass on OpenBSD E 6.4. + +F was refactored: There is now no longer a single +massive C. Creation of test disks was refactored. + +Some tests will now use new libnbd 1.4 tools L and +L if available, and skip the tests otherwise. + +New test functions C and C allows +tests to be skipped if the corresponding plugin/filter was not +compiled on a particular platform. So tests should now not fail when +an optional external library needed by a plugin/filter is not +available. + +=head2 Build + +Honggfuzz may now be used for fuzz testing. + +If L is enabled, Python E 3.6 must be +used. + +=head2 Internals + +The export name is now passed down through filter C<.open> callbacks, +allowing filters to modify the export name passed through to plugins. + +The final thread model is passed to filter C<.get_ready> callbacks. + +=head1 SEE ALSO + +L. + +=head1 AUTHORS + +Authors of nbdkit 1.22: + +=over 4 + +=item Alan Somers + +(7 commits) + +=item Eric Blake + +(53 commits) + +=item François Revol + +(2 commits) + +=item Nir Soffer + +(2 commits) + +=item Richard W.M. Jones + +(285 commits) + +=back + +=head1 COPYRIGHT + +Copyright (C) 2020 Red Hat Inc. diff --git a/docs/nbdkit-release-notes-1.4.pod b/docs/nbdkit-release-notes-1.4.pod new file mode 100644 index 0000000..6c50e5e --- /dev/null +++ b/docs/nbdkit-release-notes-1.4.pod @@ -0,0 +1,107 @@ +=head1 NAME + +nbdkit-release-notes-1.4 - release notes for nbdkit 1.4 + +=head1 DESCRIPTION + +These are the release notes for nbdkit stable release 1.4. +This describes the major changes since 1.2. + +nbdkit 1.4.0 was released on 6th July 2018. + +=head2 New features + +=over 4 + +=item * + +You can write plugins in Tcl, see +L. + +=item * + +Other new plugins: +L, +L, +L. + +=item * + +New filters: +L, +L, +L, +L. + +=item * + +Bash tab completion of nbdkit commands. + +=item * + +TLS Pre-Shared Keys (PSK) authentication. + +=item * + +We now default to the newstyle protocol, use -o to select oldstyle. + +=item * + +On-demand ramping of thread pool. + +=item * + +TRIM support in the file plugin. + +=item * + +Reworked error handling. + +=item * + +New C, C methods and better handling of FUA. + +=item * + +New C function. + +=item * + +C rewritten. + +=item * + +Better handling of shutdown path to ensure plugins can do long cleanups. + +=item * + +New C variables. + +=item * + +Regression test for IPv6 connections. + +=item * + +Of course numerous smaller bug fixes and improvements. + +=back + +=head2 Acknowledgements + +Thanks in particular to Eric Blake and Pino Toscano. + +=head1 SEE ALSO + +L, +L. + +=head1 AUTHORS + +Eric Blake + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2018 Red Hat Inc. diff --git a/docs/nbdkit-release-notes-1.6.pod b/docs/nbdkit-release-notes-1.6.pod new file mode 100644 index 0000000..024ae50 --- /dev/null +++ b/docs/nbdkit-release-notes-1.6.pod @@ -0,0 +1,112 @@ +=head1 NAME + +nbdkit-release-notes-1.6 - release notes for nbdkit 1.6 + +=head1 DESCRIPTION + +These are the release notes for nbdkit stable release 1.6. +This describes the major changes since 1.4. + +nbdkit 1.6.0 was released on 28th August 2018. + +=head2 New features + +=over 4 + +=item * + +You can now write plugins in the Lua scripting language, see +L. + +=item * + +nbdkit and common plugins are now "63 bit clean": the maximum disk +size supported is 2⁶³-1 bytes, and the core server and plugins now +have additional tests to check this works, even on 32 bit machines. + +=item * + +Multiple improvements to the L to make zeroing +and trimming perform better, work correctly with block devices, and +work on older Linux kernels [Nir Soffer, Eric Blake]. + +=item * + +New L generates a simple, fixed test pattern +for testing nbdkit filters and NBD clients. + +=item * + +New L can: truncate or extend the size of +plugins, or round up or down the size to next multiple of a power of +2. Useful for NBD clients like qemu which can only handle NBD sizes +which are a multiple of 512 bytes. + +=item * + +New L which can be used to inject errors into +the protocol for testing how clients can handle and recover from +errors. + +=item * + +New L allows you to specify (small) disk images +directly on the command line. + +=item * + +Enhanced error reporting in the Python plugin so full tracebacks +from errors are now displayed instead of being lost as before. + +=item * + +C now supported, so we can return errors when negotiating +the export name. + +=item * + +Support for logging error messages to syslog. + +=item * + +nbdkit can now be compiled with Clang (as well as GCC). + +=item * + +nbdkit can now be compiled on FreeBSD. + +=item * + +L is compiled unconditionally. You no longer +need to install the proprietary VDDK to compile it. + +=item * + +Debug messages now include the name of the filter when invoked from +a filter context. + +=item * + +Debug flags (I<-D> option) provides lightweight debugging for plugin +authors. + +=back + +=head2 Acknowledgements + +Thanks to all who contributed, especially Nir Soffer and Eric Blake. + +=head1 SEE ALSO + +L, +L. + +=head1 AUTHORS + +Eric Blake + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2018 Red Hat Inc. diff --git a/docs/nbdkit-release-notes-1.8.pod b/docs/nbdkit-release-notes-1.8.pod new file mode 100644 index 0000000..087ebb5 --- /dev/null +++ b/docs/nbdkit-release-notes-1.8.pod @@ -0,0 +1,118 @@ +=head1 NAME + +nbdkit-release-notes-1.8 - release notes for nbdkit 1.8 + +=head1 DESCRIPTION + +These are the release notes for nbdkit stable release 1.8. +This describes the major changes since 1.6. + +nbdkit 1.8.0 was released on 12th November 2018. + +=head2 New features + +=over 4 + +=item * + +New plugin: L for running shell scripts and other +external programs. See: +L + +=item * + +New plugin: L which creates a +partitioned disk from a list of partitions in files. + +=item * + +New plugin: L which creates an ISO (CD-ROM) +image on the fly from a directory of files. See: +L + +=item * + +New plugin: L which creates a virtual +FAT-formatted floppy disk from a directory of files. +L + +=item * + +Magic config key allows simpler invocation of many plugins, eg: + + nbdkit file file=foo + +becomes: + + nbdkit file foo + +=item * + +L: Add F script to generate data +parameters. + +=item * + +L Use C<<< >> to inline a file. + +=item * + +L: Use S> to enable extra +debug information. + +=item * + +tests: Use a helper function to refactor and simplify most tests. + +=item * + +L: Can handle E 128 GPT partitions. + +=item * + +nbdkit can be compiled on the Haiku operating system +(François Revol). + +=item * + +New C API for parsing boolean parameters +(Eric Blake). + +=item * + +L: Add C +(Eric Blake). + +=item * + +L: New C and C calls. + +=item * + +Analyze code under AddressSanitizer and ThreadSanitizer and fix bugs +(Eric Blake). + +=item * + +Analyze code under Coverity and fix bugs. + +=item * + +Tests now run more quickly. + +=back + +=head1 SEE ALSO + +L, +L. + +=head1 AUTHORS + +Eric Blake + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2018 Red Hat Inc. diff --git a/docs/nbdkit-security.pod b/docs/nbdkit-security.pod new file mode 100644 index 0000000..3a28e54 --- /dev/null +++ b/docs/nbdkit-security.pod @@ -0,0 +1,41 @@ +=head1 NAME + +nbdkit-security - information about past security issues in nbdkit + +=head1 DESCRIPTION + +This page details past security issues found in nbdkit. + +For how to report new security issues, see the C file in the +top level source directory, also available online here: +L + +=head2 CVE-2019-14850 +denial of service due to premature opening of back-end connection + +See the full announcement and links to mitigation, tests and fixes +here: +https://www.redhat.com/archives/libguestfs/2019-September/msg00084.html + +=head2 CVE-2019-14851 +assertion failure by issuing commands in the wrong order + +This CVE was caused by the fix to the previous issue. + +See the full announcement and links to mitigation, tests and fixes +here: +https://www.redhat.com/archives/libguestfs/2019-September/msg00272.html + +=head1 SEE ALSO + +L. + +=head1 AUTHORS + +Eric Blake + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2013-2020 Red Hat Inc. diff --git a/docs/nbdkit-service.pod b/docs/nbdkit-service.pod new file mode 100644 index 0000000..42fbedd --- /dev/null +++ b/docs/nbdkit-service.pod @@ -0,0 +1,167 @@ +=head1 NAME + +nbdkit-service - running nbdkit as a service, and systemd socket activation + +=head1 DESCRIPTION + +Most people start nbdkit from the command line or run it from another +program (see L. It is also possible to run nbdkit +as a standalone service, which is what this page describes. + +=head1 SOCKET ACTIVATION + +nbdkit supports socket activation (sometimes called systemd socket +activation). This is a simple protocol where instead of nbdkit itself +opening the listening socket(s), the parent process (typically +systemd) passes in pre-opened file descriptors. Socket activation +lets you serve infrequent NBD requests using a superserver without +needing nbdkit to be running the whole time. + +Socket activation is triggered when both the C and +C environment variables are set. In this mode using +I<-i>, I<-p>, I<--run>, I<-s> or I<-U> flags on the command line is +illegal and will cause an error. Also in this mode nbdkit does not +fork into the background (ie. I<-f> is implied). + +=head2 Using socket activation with systemd + +To use nbdkit with socket activation from systemd, create a unit file +ending in C<.socket> (eg. F) +containing: + + [Unit] + Description=NBDKit Network Block Device server + + [Socket] + ListenStream=10809 + + [Install] + WantedBy=sockets.target + +There are various formats for the C key. See +L for more information. + +Also create a service unit (eg. F) +containing: + + [Service] + ExecStart=/usr/sbin/nbdkit file /path/to/serve + +For more information on systemd and socket activation, see +L + +=head1 LOGGING + +Error messages from nbdkit can be sent to standard error +(I<--log=stderr>), or to the system log (I<--log=syslog>), or can be +discarded completely (I<--log=null>, not recommended for normal use). + +The default, if I<--log> is not specified on the command line, is to +send error messages to stderr, unless nbdkit forks into the background +in which case they are sent to syslog. + +In detail: + +=over 4 + +=item Messages go to standard error (stderr): + +When running from the command line in the foreground. + +When using systemd socket activation. + +Using I<--log=stderr> forces all messages to go to standard error. + +=item Messages go to the system log (syslog): + +When running from the command line, forked into the background. + +Using I<--log=syslog> forces all messages to go to the system log. + +=back + +Debug messages (I<-v>/I<--verbose>) always go to standard error and +are never sent to the system log. + +=head1 AF_VSOCK + +On Linux nbdkit supports the C address family / protocol. +This allows you to serve NBD devices into virtual machines without +using a regular network connection. + +B that this is different from the usual case where you present +NBD as a virtual block device to a guest (which the guest sees as +something like a SATA or virtio-scsi disk). With C the +virtual machine sees a raw NBD socket which it can connect to by +opening an C connection. Only libnbd supports C +NBD client connections at the time of writing (2019). For more about +this protocol, see L + +=head2 AF_VSOCK example + +To set up an C server, use for example: + + nbdkit --vsock [--port PORT] memory 1G + +The optional I<-p>/I<--port> argument is used to change the +C port number. These port numbers exist in a different +namespace from TCP/IP port numbers. Also unlike TCP, the port numbers +are 32 bit. The default port is 10809. + +The guest that wishes to access nbdkit must be configured for +virtio-vsock. On the qemu command line use: + + qemu ... -device vhost-vsock-pci,id=vhost-vsock-pci0 + +For libvirt add this element to the C<<< >>> section: + + + +If you see the error C then you may +have to unload the VMCI transport on the host: + + modprobe -r vmw_vsock_vmci_transport + +Once nbdkit and the guest are running, from inside the guest you can +connect to nbdkit on the host using libnbd: + + nbdsh -c 'h.connect_vsock(2, 10809)' -c 'print(h.get_size())' + +=head1 ENVIRONMENT VARIABLES + +=over 4 + +=item C + +=item C + +If present in the environment when nbdkit starts up, these trigger +L. + +=back + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L, +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Eric Blake + +Richard W.M. Jones + +Pino Toscano + +=head1 COPYRIGHT + +Copyright (C) 2013-2020 Red Hat Inc. diff --git a/docs/nbdkit-tls.pod b/docs/nbdkit-tls.pod new file mode 100644 index 0000000..99d157e --- /dev/null +++ b/docs/nbdkit-tls.pod @@ -0,0 +1,297 @@ +=head1 NAME + +nbdkit-tls - authentication and encryption of NBD connections +(sometimes incorrectly called "SSL") + +=head1 SYNOPSIS + + nbdkit [--tls=off|on|require] [--tls-certificates /path/to/certificates] + [--tls-psk /path/to/pskfile] [--tls-verify-peer] + PLUGIN [...] + +=head1 DESCRIPTION + +TLS (authentication and encryption, sometimes incorrectly called +"SSL") is supported if nbdkit was compiled with GnuTLS. This allows +the server to verify that the client is allowed access, and to encrypt +the contents of the protocol in transit over the network. + +TLS can be disabled or enabled by specifying either I<--tls=off> or +I<--tls=on>. With I<--tls=off>, if a client tries to use TLS to +connect, it will be rejected by the server (in other words, as if the +server doesn't support TLS). + +I<--tls=on> means that the client may choose to connect either with or +without TLS. In this mode, a plugin may wish to serve different +content depending on whether the client has authenticated; the +function C can be used during the C<.open> callback +for that purpose. Or, you can opt to use +L to provide safe fallback content to +plaintext connections, saving the plugin content only for secure +connections. + +Because I<--tls=on> is subject to downgrade attacks where a malicious +proxy pretends not to support TLS in order to force either the client +or server to communicate in plaintext, you can also specify +I<--tls=require>, where the server enables TLS B rejects all +non-TLS connection attempts. + +=head2 TLS with X.509 certificates + +When nbdkit starts up, it loads TLS certificates from some built-in +paths, or from the directory specified by the I<--tls-certificates> +option. + +Without I<--tls-certificates>, if nbdkit is started as a non-root user +(note this does not include use of the I<-u> or I<-g> options), nbdkit +looks in each of these paths in turn: + + $HOME/.pki/nbdkit/ + $HOME/.config/pki/nbdkit/ + +Without I<--tls-certificates>, if nbdkit is started as root, nbkit +looks in: + + $sysconfdir/pki/nbdkit/ + +(Use C and look at the +C setting to get the actual directory built +into the binary.) + +You can override both directories above by using +I<--tls-certificates /path/to/certificates>. + +In this directory, nbdkit expects to find several files: + +=over 4 + +=item F + +The Certificate Authority certificate. + +=item F + +The server certificate. + +=item F + +The server private key. + +=item F + +(Optional) The certificate revocation list. + +=back + +=head3 Setting up the Certificate Authority + +This step only needs to be done once per organization. It may be that +your organization already has a CA. + + $ certtool --generate-privkey > ca-key.pem + $ chmod 0600 ca-key.pem + +The F file is the CA private key and is I +sensitive data. With possession of this key, anyone can create +certificates pretending to be your organization! + +To create the CA certificate file: + + $ cat > ca.info < server-key.pem + $ chmod 0600 server-key.pem + +The server key file is sensitive. Setting the mode to C<0600> helps +to prevent other users on the same machine from reading it. + +The server DNS name (C below) must be the fully qualified hostname +— and the only hostname — that the client connects to. + + $ cat > server.info < +You don't need to create client certificates unless you want to check +and limit which clients can connect to nbdkit. nbdkit B +check client certificates unless you specify the I<--tls-verify-peer> +option on the command line. + +For each client you should generate a private key and a client +certificate: + + $ certtool --generate-privkey > client-key.pem + $ chmod 0600 client-key.pem + +The client key file is sensitive. + +The client DNS name (C below) is the client's name that nbdkit +sees and checks. + + $ cat > client.info < need to be present anywhere on the +nbdkit host. You don't need to copy them into nbdkit's TLS +certificates directory. The security comes from the fact that the +client must present a client certificate signed by the Certificate +Authority, and nbdkit can check this because it has the F +file. + +To enable checking of client certificates, specify the +I<--tls-verify-peer> option on the command line. Clients which don't +present a valid certificate (eg. not signed, incorrect signature) are +denied. Also denied are clients which present a valid certificate +signed by another CA. Also denied are clients with certificates added +to the certificate revocation list (F). + +=head2 TLS with Pre-Shared Keys (PSK) + +As a simpler alternative to TLS certificates, you may used pre-shared +keys to authenticate clients. + +Create a PSK file containing one or more C pairs. It is +easiest to use L for this: + + mkdir -m 0700 /tmp/keys + psktool -u rich -p /tmp/keys/keys.psk + +The PSK file contains the hex-encoded random keys in plaintext. Any +client which can read this file will be able to connect to the server. + +Use the nbdkit I<--tls-psk> option to start the server: + + nbdkit --tls=require --tls-psk=/tmp/keys/keys.psk -e / file disk.img + +This option overrides X.509 certificate authentication. + +Clients must supply one of the usernames in the PSK file and the +corresponding key in order to connect. An example of connecting using +L is: + + qemu-img info \ + --object tls-creds-psk,id=tls0,dir=/tmp/keys,username=rich,endpoint=client \ + --image-opts \ + file.driver=nbd,file.host=localhost,file.port=10809,file.tls-creds=tls0,file.export=/ + +=head2 Default TLS behaviour + +If nbdkit was compiled without GnuTLS support, then TLS is disabled +and TLS connections will be rejected (as if I<--tls=off> was specified +on the command line). Also it is impossible to turn on TLS in this +scenario. You can tell if nbdkit was compiled without GnuTLS support +because C will contain C. + +If TLS certificates cannot be loaded either from the built-in path or +from the directory specified by I<--tls-certificates>, then TLS +defaults to disabled. Turning TLS on will give a warning +(I<--tls=on>) or error (I<--tls=require>) about the missing +certificates. + +If TLS certificates can be loaded from the built-in path or from the +I<--tls-certificates> directory, then TLS will by default be enabled +(like I<--tls=on>), but it is not required. Clients can choose +whether or not to use TLS and whether or not to present certificates. + +TLS client certificates are I checked by default unless you +specify I<--tls-verify-peer>. + +If the I<--tls-psk> option is used then TLS is enabled (but I +required). To ensure that all clients are authorized you must use +I<--tls=require>. + +Each of these defaults is insecure to some extent (including +I<--tls=on> which could be subject to a downgrade attack), so if you +expect TLS then it is best to specify the I<--tls> option that you +require, and if you want to check client certificates, specify the +I<--tls-verify-peer> option. + +=head2 Choice of TLS algorithms + +TLS has a bewildering choice of algorithms that can be used. To +enable you to choose a default set of algorithms, there is a configure +setting C<--with-tls-priority>. This defaults to C which, to +quote the GnuTLS documentation: + +=over 4 + +"C means all C ciphersuites. The 256-bit ciphers are +included as a fallback only. The ciphers are sorted by security +margin." + +=back + +You could also set the TLS priority so that it can be configured from +a file at runtime: + + ./configure --with-tls-priority=@SYSTEM + +means use the policy from F. + + ./configure --with-tls-priority=@NBDKIT,SYSTEM + +means use the policy from +F and fall back to +F if the first file does not exist. + +More information can be found in L. + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Eric Blake + +Richard W.M. Jones + +Pino Toscano + +=head1 COPYRIGHT + +Copyright (C) 2013-2020 Red Hat Inc. diff --git a/docs/nbdkit.pod b/docs/nbdkit.pod new file mode 100644 index 0000000..b778b22 --- /dev/null +++ b/docs/nbdkit.pod @@ -0,0 +1,731 @@ +=head1 NAME + +nbdkit - toolkit for creating NBD servers + +=head1 SYNOPSIS + +__SYNOPSIS__ + +=head1 DESCRIPTION + +Network Block Device (NBD) is a network protocol for accessing block +devices over the network. Block devices are hard disks and things +that behave like hard disks such as disk images and virtual machines. + +nbdkit is both a toolkit for creating NBD servers from +“unconventional” sources, and the name of an NBD server. nbdkit ships +with many plugins for performing common tasks like serving local +files. + +=head2 Plugins and filters + +nbdkit is different from other NBD servers because you can easily +create new Network Block Device sources by writing a few glue +functions, possibly in C, or perhaps in a high level language like +Perl or Python. The liberal licensing of nbdkit is meant to allow you +to link nbdkit with proprietary libraries or to include nbdkit in +proprietary code. + +If you want to write your own nbdkit plugin you should read +L. + +nbdkit also has a concept of filters which can be layered on top of +plugins. Several filters are provided with nbdkit and if you want to +write your own you should read L. + +=head1 EXAMPLES + +=head2 Basic file serving + +=over 4 + +=item * + +Serve file F on port 10809 using L, +and connect to it using L: + + nbdkit file disk.img + guestfish --rw --format=raw -a nbd://localhost + +=item * + +Serve file F on port 10809, requiring clients to use +encrypted (TLS) connections: + + nbdkit --tls=require file disk.img + +=back + +=head2 Other nbdkit plugins + +=over 4 + +=item * + +Create a small disk containing test patterns using +L: + + nbdkit data ' ( 0x55 0xAA )*2048 ' + +=item * + +Forward an NBD connection to a remote server over HTTPS or SSH using +L or L: + + nbdkit -r curl https://example.com/disk.img + + nbdkit ssh host=example.com /var/tmp/disk.img + +=item * + +Create a RAM disk using L: + + nbdkit memory 64M + +=item * + +Create a floppy disk image containing files from a local directory +using L: + + nbdkit floppy dir/ + +=back + +=head2 Combining plugins and filters + +=over 4 + +=item * + +Serve only the first partition from compressed disk image +F, combining L, +L and L. + + nbdkit --filter=partition --filter=xz file disk.img.xz partition=1 + +To understand this command line: + + plugin name and plugin parameter + │ + ┌───────┴──────┐ + │ │ + nbdkit --filter=partition --filter=xz file disk.img.xz partition=1 + │ │ │ + └──────────────┴────┬─────────────────────┘ + │ + filters and filter parameter + +=item * + +Create a scratch, empty nbdkit device and inject errors and delays, +for testing clients, using L, +L and L: + + nbdkit --filter=error --filter=delay memory 100M \ + error-rate=10% rdelay=1 wdelay=1 + +=back + +=head2 Writing plugins in shell script + +=over 4 + +=item * + +Write a simple, custom plugin in shell script using +L: + + nbdkit sh - <<'EOF' + case "$1" in + get_size) echo 1M ;; + pread) dd if=/dev/zero count=$3 iflag=count_bytes ;; + *) exit 2 ;; + esac + EOF + +=item * + +The same example as above can be written entirely on the command line +using L: + + nbdkit eval get_size='echo 1M' \ + pread='dd if=/dev/zero count=$3 iflag=count_bytes' + +=back + +=head2 Display information + +Display information about nbdkit or a specific plugin: + + nbdkit --help + nbdkit --version + nbdkit --dump-config + nbdkit example1 --help + nbdkit example1 --dump-plugin + +=head1 GLOBAL OPTIONS + +=over 4 + +=item B<--help> + +Display brief command line usage information and exit. + +=item B<-D> PLUGIN.FLAG=N + +=item B<-D> FILTER.FLAG=N + +=item B<--debug> PLUGIN.FLAG=N + +=item B<--debug> FILTER.FLAG=N + +Set the plugin or filter Debug Flag called C to the integer +value C. See L. + +=item B<-D> nbdkit.FLAG=N + +=item B<--debug> nbdkit.FLAG=N + +(nbdkit E 1.18) + +Set the nbdkit server Debug Flag called C to the integer value +C. See L below. + +=item B<--dump-config> + +Dump out the compile-time configuration values and exit. +See L. + +=item B<--dump-plugin> + +Dump out information about the plugin and exit. +See L. + +=item B<--exit-with-parent> + +If the parent process exits, we exit. This can be used to avoid +complicated cleanup or orphaned nbdkit processes. There are some +important caveats with this, see L. + +An alternative to this is L. + +This option implies I<--foreground>. + +=item B<-e> EXPORTNAME + +=item B<--export> EXPORTNAME + +=item B<--export-name> EXPORTNAME + +=item B<--exportname> EXPORTNAME + +Set a preferred exportname to expose in the shell environment created +during B<--run>. The use of this option without B<--run> has no +effect. This option does I change what nbdkit advertises as a +server, but can aid in writing a captive client that wants to access +particular content from a plugin that differentiates content based on +the client's choice of export name. + +If not set, the B<--run> environment is set to access the default +exportname C<""> (empty string). + +=item B<-f> + +=item B<--foreground> + +=item B<--no-fork> + +I fork into the background. + +=item B<--filter> FILTER + +Add a filter before the plugin. This option may be given one or more +times to stack filters in front of the plugin. They are processed in +the order they appear on the command line. See L and +L. + +=item B<-g> GROUP + +=item B<--group> GROUP + +Change group to C after starting up. A group name or numeric +group ID can be used. + +The server needs sufficient permissions to be able to do this. +Normally this would mean starting the server up as root. + +See also I<-u>. + +=item B<-i> IPADDR + +=item B<--ip-addr> IPADDR + +=item B<--ipaddr> IPADDR + +Listen on the specified interface. The default is to listen on all +interfaces. See also I<-p>. + +=item B<--log=stderr> + +=item B<--log=syslog> + +=item B<--log=null> + +Send error messages to standard error (I<--log=stderr>), or to the +system log (I<--log=syslog>), or discard them completely +(I<--log=null>, not recommended for normal use). + +The default is to send error messages to stderr, unless nbdkit +forks into the background in which case they are sent to syslog. + +For more details see L. + +=item B<-n> + +=item B<--new-style> + +=item B<--newstyle> + +Use the newstyle NBD protocol. This is the default in nbdkit +E 1.3. In earlier versions the default was oldstyle. +See L. + +=item B<--no-sr> + +Do not advertise structured replies. A client must request structured +replies to take advantage of block status and potential sparse reads; +however, as structured reads are not a mandatory part of the newstyle +NBD protocol, this option can be used to debug client fallbacks for +dealing with older servers. See L. + +=item B<-o> + +=item B<--old-style> + +=item B<--oldstyle> + +Use the oldstyle NBD protocol. This I the default in nbdkit +E 1.2, but now the default is newstyle. Note this is incompatible +with newer features such as export names and TLS. +See L. + +=item B<-P> PIDFILE + +=item B<--pid-file> PIDFILE + +=item B<--pidfile> PIDFILE + +Write C (containing the process ID of the server) after +nbdkit becomes ready to accept connections. + +If the file already exists, it is overwritten. nbdkit I +delete the file when it exits. + +=item B<-p> PORT + +=item B<--port> PORT + +Change the TCP/IP port number on which nbdkit serves requests. +The default is C<10809>. See also I<-i>. + +=item B<-r> + +=item B<--read-only> + +=item B<--readonly> + +The export will be read-only. If a client writes, then it will get an +error. + +Note that some plugins inherently don't support writes. With those +plugins the I<-r> option is added implicitly. + +L can be placed over read-only plugins to +provide copy-on-write (or "snapshot") functionality. If you are using +qemu as a client then it also supports snapshots. + +=item B<--run> CMD + +Run nbdkit as a captive subprocess of C. When C exits, +nbdkit is killed. See L. + +This option implies I<--foreground>. + +=item B<-s> + +=item B<--single> + +=item B<--stdin> + +Don't fork. Handle a single NBD connection on stdin/stdout. After +stdin closes, the server exits. + +You can use this option to run nbdkit from inetd or similar +superservers; or just for testing; or if you want to run nbdkit in a +non-conventional way. Note that if you want to run nbdkit from +systemd, then it may be better to use +L instead of this option. + +This option implies I<--foreground>. + +=item B<--selinux-label> SOCKET-LABEL + +Apply the SELinux label C to the nbdkit listening +socket. + +The common — perhaps only — use of this option is to allow libvirt +guests which are using SELinux and sVirt confinement to access nbdkit +Unix domain sockets: + + nbdkit --selinux-label system_u:object_r:svirt_t:s0 ... + +=item B<--swap> + +(nbdkit E 1.18) + +Specifies that the NBD device will be used as swap space loop mounted +on the same machine which is running nbdkit. To avoid deadlocks this +locks the whole nbdkit process into memory using L. This +may require additional permissions, such as starting the server as +root or raising the C (L I<-l>) limit on +the process. + +=item B<-t> THREADS + +=item B<--threads> THREADS + +Set the number of threads to be used per connection, which in turn +controls the number of outstanding requests that can be processed at +once. Only matters for plugins with thread_model=parallel (where it +defaults to 16). To force serialized behavior (useful if the client +is not prepared for out-of-order responses), set this to 1. + +=item B<--tls=off> + +=item B<--tls=on> + +=item B<--tls=require> + +Disable, enable or require TLS (authentication and encryption +support). See L. + +=item B<--tls-certificates> /path/to/certificates + +Set the path to the TLS certificates directory. If not specified, +some built-in paths are checked. See L for more +details. + +=item B<--tls-psk> /path/to/pskfile + +Set the path to the pre-shared keys (PSK) file. If used, this +overrides certificate authentication. There is no built-in path. See +L for more details. + +=item B<--tls-verify-peer> + +Enables TLS client certificate verification. The default is I to +check the client's certificate. + +=item B<-U> SOCKET + +=item B<--unix> SOCKET + +=item B<-U -> + +=item B<--unix -> + +Accept connections on the Unix domain socket C (which is a +path). + +nbdkit creates this socket, but it will probably have incorrect +permissions (too permissive). If it is a problem that some +unauthorized user could connect to this socket between the time that +nbdkit starts up and the authorized user connects, then put the socket +into a directory that has restrictive permissions. + +nbdkit does B delete the socket file when it exits. The caller +should delete the socket file after use (else if you try to start +nbdkit up again you will get an C
error). + +If the socket name is I<-> then nbdkit generates a randomly named +private socket. This is useful with L. + +=item B<-u> USER + +=item B<--user> USER + +Change user to C after starting up. A user name or numeric user +ID can be used. + +The server needs sufficient permissions to be able to do this. +Normally this would mean starting the server up as root. + +See also I<-g>. + +=item B<-v> + +=item B<--verbose> + +Enable verbose messages. + +It's a good idea to use I<-f> as well so the process does not fork +into the background (but not required). + +=item B<-V> + +=item B<--version> + +Print the version number of nbdkit and exit. + +The I<--dump-config> option provides separate major and minor numbers +and may be easier to parse from shell scripts. + +=item B<--vsock> + +(nbdkit E 1.16) + +Use the AF_VSOCK protocol (instead of TCP/IP). You must use this in +conjunction with I<-p>/I<--port>. See L. + +=back + +=head1 PLUGIN NAME + +You can give the full path to the plugin, like this: + + nbdkit $libdir/nbdkit/plugins/nbdkit-file-plugin.so [...] + +but it is usually more convenient to use this equivalent syntax: + + nbdkit file [...] + +C<$libdir> is set at compile time. To print it out, do: + + nbdkit --dump-config + +=head1 PLUGIN CONFIGURATION + +After specifying the plugin name you can (optionally, it depends +on the plugin) give plugin configuration on the command line in +the form of C. For example: + + nbdkit file file=disk.img + +To list all the options supported by a plugin, do: + + nbdkit --help file + +To dump information about a plugin, do: + + nbdkit file --dump-plugin + +=head2 Magic parameters + +Some plugins declare a special "magic config key". This is a key +which is assumed if no C part is present. For example: + + nbdkit file disk.img + +is assumed to be C because the file plugin declares +C as its magic config key. There can be ambiguity in the +parsing of magic config keys if the value might look like a +C. If there could be ambiguity then modify the value, +eg. by prefixing it with C<./> + +There is also a special exception for plugins which do not declare a +magic config key, but where the first plugin argument does not contain +an C<'='> character: it is assumed to be C. This is +used by scripting language plugins: + + nbdkit perl foo.pl [args...] + +has the same meaning as: + + nbdkit perl script=foo.pl [args...] + +=head2 Shebang scripts + +You can use C<#!> to run nbdkit plugins written in most scripting +languages. The file should be executable. For example: + + #!/usr/sbin/nbdkit perl + sub open { + # etc + } + +(see L for a full example). + +=head1 SERVER DEBUG FLAGS + +As well as enabling or disabling debugging in the server using +I<--verbose> you can control extra debugging in the server using the +C<-D nbdkit.*> flags listed in this section. Note these flags are an +internal implementation detail of the server and may be changed or +removed at any time in the future. + +=over 4 + +=item B<-D nbdkit.backend.controlpath=0> + +=item B<-D nbdkit.backend.controlpath=1> + +=item B<-D nbdkit.backend.datapath=0> + +=item B<-D nbdkit.backend.datapath=1> + +These flags control the verbosity of nbdkit backend debugging messages +(the ones which show every request processed by the server). The +default for both settings is C<1> (normal debugging) but you can set +them to C<0> to suppress these messages. + +C<-D nbdkit.backend.datapath=0> is the more useful setting which lets you +suppress messages about pread, pwrite, zero, trim, etc. commands. +When transferring large amounts of data these messages are numerous +and not usually very interesting. + +C<-D nbdkit.backend.controlpath=0> suppresses the non-datapath +commands (config, open, close, can_write, etc.) + +=back + +=head1 SIGNALS + +nbdkit responds to the following signals: + +=over 4 + +=item C + +=item C + +=item C + +The server exits cleanly. + +=item C + +This signal is ignored. + +=back + +=head1 ENVIRONMENT VARIABLES + +=over 4 + +=item C + +=item C + +If present in the environment when nbdkit starts up, these trigger +L. + +=back + +=head1 SEE ALSO + +=head2 Other topics + +L — Run nbdkit under another process and have it +reliably cleaned up. + +L — How to mount NBD filesystems on a client machine. + +L — Use nbdkit with the Linux kernel client to create +loop devices and loop mounts. + +L — How to probe for nbdkit configuration and plugins. + +L — Which parts of the NBD protocol nbdkit supports. + +L — Lists past security issues in nbdkit. + +L — Running nbdkit as a service, and systemd socket +activation. + +L — Authentication and encryption of NBD connections +(sometimes incorrectly called "SSL"). + +=head2 Plugins + +__PLUGIN_LINKS__. + +=head2 Filters + +__FILTER_LINKS__. + +=head2 For developers + +L, +L. + +=head2 Writing plugins in other programming languages + +__LANG_PLUGIN_LINKS__. + +=head2 Release notes for previous releases of nbdkit + +L, +L, +L, +L, +L, +L, +L, +L, +L, +L. + +=head2 NBD clients + +L, +L, +L, +L, +L, +L, +L, +L. + +=head2 nbdkit links + +L — Source code. + +=head2 Other NBD servers + +L, +L, +L. + +=head2 Documentation for the NBD protocol + +L, +L. + +=head2 Similar protocols + +L, +L, +L. + +=head2 Other manual pages of interest + +L, +L, +L, +L. + +=head1 AUTHORS + +Eric Blake + +Richard W.M. Jones + +Yann E. MORIN + +Nir Soffer + +Pino Toscano + +=head1 COPYRIGHT + +Copyright (C) 2013-2020 Red Hat Inc. diff --git a/docs/synopsis.txt b/docs/synopsis.txt new file mode 100644 index 0000000..07b9dcf --- /dev/null +++ b/docs/synopsis.txt @@ -0,0 +1,22 @@ +nbdkit [-D|--debug PLUGIN|FILTER|nbdkit.FLAG=N] + [-e|--exportname EXPORTNAME] [--exit-with-parent] + [--filter FILTER ...] [-f|--foreground] + [-g|--group GROUP] [-i|--ipaddr IPADDR] + [--log stderr|syslog|null] + [-n|--newstyle] [--mask-handshake MASK] [--no-sr] [-o|--oldstyle] + [-P|--pidfile PIDFILE] + [-p|--port PORT] [-r|--readonly] + [--run CMD] [-s|--single] [--selinux-label LABEL] [--swap] + [-t|--threads THREADS] + [--tls off|on|require] + [--tls-certificates /path/to/certificates] + [--tls-psk /path/to/pskfile] [--tls-verify-peer] + [-U|--unix SOCKET] [-u|--user USER] + [-v|--verbose] [-V|--version] [--vsock] + PLUGIN [[KEY=]VALUE [KEY=VALUE [...]]] + +nbdkit --dump-config + +nbdkit PLUGIN --dump-plugin + +nbdkit --help diff --git a/filters/Makefile.am b/filters/Makefile.am new file mode 100644 index 0000000..d237045 --- /dev/null +++ b/filters/Makefile.am @@ -0,0 +1,36 @@ +# nbdkit +# Copyright (C) 2013-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = filters.syms + +SUBDIRS = $(filters) diff --git a/filters/Makefile.in b/filters/Makefile.in new file mode 100644 index 0000000..b9056c2 --- /dev/null +++ b/filters/Makefile.in @@ -0,0 +1,785 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2013-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-blocksize-filter.pod + +filter_LTLIBRARIES = nbdkit-blocksize-filter.la + +nbdkit_blocksize_filter_la_SOURCES = \ + blocksize.c \ + $(top_srcdir)/include/nbdkit-filter.h \ + $(NULL) + +nbdkit_blocksize_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include \ + -I$(top_srcdir)/common/utils \ + $(NULL) +nbdkit_blocksize_filter_la_CFLAGS = $(WARNINGS_CFLAGS) +nbdkit_blocksize_filter_la_LDFLAGS = \ + -module -avoid-version -shared $(NO_UNDEFINED_ON_WINDOWS) \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms \ + $(NULL) +nbdkit_blocksize_filter_la_LIBADD = \ + $(top_builddir)/common/utils/libutils.la \ + $(NULL) + +if HAVE_POD + +man_MANS = nbdkit-blocksize-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-blocksize-filter.1: nbdkit-blocksize-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/blocksize/Makefile.in b/filters/blocksize/Makefile.in new file mode 100644 index 0000000..dcc342d --- /dev/null +++ b/filters/blocksize/Makefile.in @@ -0,0 +1,909 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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+@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/filters/blocksize/blocksize.c b/filters/blocksize/blocksize.c new file mode 100644 index 0000000..c3a2d60 --- /dev/null +++ b/filters/blocksize/blocksize.c @@ -0,0 +1,454 @@ +/* nbdkit + * Copyright (C) 2018-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "cleanup.h" +#include "minmax.h" +#include "rounding.h" + +#define BLOCKSIZE_MIN_LIMIT (64U * 1024) + +/* As long as we don't have parallel requests, we can reuse a common + * buffer for alignment purposes; size it to the maximum we allow for + * minblock. */ +static char bounce[BLOCKSIZE_MIN_LIMIT]; +static unsigned int minblock; +static unsigned int maxdata; +static unsigned int maxlen; + +/* We are using a common bounce buffer (see above) so we must + * serialize all requests. + */ +static int +blocksize_thread_model (void) +{ + return NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS; +} + +static int +blocksize_parse (const char *name, const char *s, unsigned int *v) +{ + int64_t size = nbdkit_parse_size (s); + + if (size < 0) + return -1; + if (!size) { + nbdkit_error ("parameter '%s' must be non-zero if specified", name); + return -1; + } + if (UINT_MAX < size) { + nbdkit_error ("parameter '%s' too large", name); + return -1; + } + *v = size; + return 0; +} + +/* Called for each key=value passed on the command line. */ +static int +blocksize_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + + if (strcmp (key, "minblock") == 0) + return blocksize_parse (key, value, &minblock); + if (strcmp (key, "maxdata") == 0) + return blocksize_parse (key, value, &maxdata); + if (strcmp (key, "maxlen") == 0) + return blocksize_parse (key, value, &maxlen); + return next (nxdata, key, value); +} + +/* Check that limits are sane. */ +static int +blocksize_config_complete (nbdkit_next_config_complete *next, void *nxdata) +{ + if (minblock) { + if (minblock & (minblock - 1)) { + nbdkit_error ("minblock must be a power of 2"); + return -1; + } + if (minblock > BLOCKSIZE_MIN_LIMIT) { + nbdkit_error ("minblock must not exceed %u", BLOCKSIZE_MIN_LIMIT); + return -1; + } + } + else + minblock = 1; + + if (maxdata) { + if (maxdata & (minblock - 1)) { + nbdkit_error ("maxdata must be a multiple of %u", minblock); + return -1; + } + } + else if (maxlen) + maxdata = MIN (maxlen, 64 * 1024 * 1024); + else + maxdata = 64 * 1024 * 1024; + + if (maxlen) { + if (maxlen & (minblock - 1)) { + nbdkit_error ("maxlen must be a multiple of %u", minblock); + return -1; + } + } + else + maxlen = -minblock; + + return next (nxdata); +} + +#define blocksize_config_help \ + "minblock= Minimum block size, power of 2 <= 64k (default 1).\n" \ + "maxdata= Maximum size for read/write (default 64M).\n" \ + "maxlen= Maximum size for trim/zero (default 4G-minblock)." + +/* Round size down to avoid issues at end of file. */ +static int64_t +blocksize_get_size (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + int64_t size = next_ops->get_size (nxdata); + + if (size == -1) + return -1; + return ROUND_DOWN (size, minblock); +} + +static int +blocksize_can_multi_conn (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + /* Although we are serializing all requests anyway so this likely + * doesn't make a difference, return false because the bounce buffer + * is not consistent for flush. + */ + return 0; +} + +static int +blocksize_pread (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, void *b, uint32_t count, uint64_t offs, + uint32_t flags, int *err) +{ + char *buf = b; + uint32_t keep; + uint32_t drop; + + /* Unaligned head */ + if (offs & (minblock - 1)) { + drop = offs & (minblock - 1); + keep = MIN (minblock - drop, count); + if (next_ops->pread (nxdata, bounce, minblock, offs - drop, flags, + err) == -1) + return -1; + memcpy (buf, bounce + drop, keep); + buf += keep; + offs += keep; + count -= keep; + } + + /* Aligned body */ + while (count >= minblock) { + keep = MIN (maxdata, ROUND_DOWN (count, minblock)); + if (next_ops->pread (nxdata, buf, keep, offs, flags, err) == -1) + return -1; + buf += keep; + offs += keep; + count -= keep; + } + + /* Unaligned tail */ + if (count) { + if (next_ops->pread (nxdata, bounce, minblock, offs, flags, err) == -1) + return -1; + memcpy (buf, bounce, count); + } + + return 0; +} + +static int +blocksize_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, const void *b, uint32_t count, uint64_t offs, + uint32_t flags, int *err) +{ + const char *buf = b; + uint32_t keep; + uint32_t drop; + bool need_flush = false; + + if ((flags & NBDKIT_FLAG_FUA) && + next_ops->can_fua (nxdata) == NBDKIT_FUA_EMULATE) { + flags &= ~NBDKIT_FLAG_FUA; + need_flush = true; + } + + /* Unaligned head */ + if (offs & (minblock - 1)) { + drop = offs & (minblock - 1); + keep = MIN (minblock - drop, count); + if (next_ops->pread (nxdata, bounce, minblock, offs - drop, 0, err) == -1) + return -1; + memcpy (bounce + drop, buf, keep); + if (next_ops->pwrite (nxdata, bounce, minblock, offs - drop, flags, + err) == -1) + return -1; + buf += keep; + offs += keep; + count -= keep; + } + + /* Aligned body */ + while (count >= minblock) { + keep = MIN (maxdata, ROUND_DOWN (count, minblock)); + if (next_ops->pwrite (nxdata, buf, keep, offs, flags, err) == -1) + return -1; + buf += keep; + offs += keep; + count -= keep; + } + + /* Unaligned tail */ + if (count) { + if (next_ops->pread (nxdata, bounce, minblock, offs, 0, err) == -1) + return -1; + memcpy (bounce, buf, count); + if (next_ops->pwrite (nxdata, bounce, minblock, offs, flags, err) == -1) + return -1; + } + + if (need_flush) + return next_ops->flush (nxdata, 0, err); + return 0; +} + +static int +blocksize_trim (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offs, uint32_t flags, + int *err) +{ + uint32_t keep; + bool need_flush = false; + + if ((flags & NBDKIT_FLAG_FUA) && + next_ops->can_fua (nxdata) == NBDKIT_FUA_EMULATE) { + flags &= ~NBDKIT_FLAG_FUA; + need_flush = true; + } + + /* Ignore unaligned head */ + if (offs & (minblock - 1)) { + keep = MIN (minblock - (offs & (minblock - 1)), count); + offs += keep; + count -= keep; + } + + /* Ignore unaligned tail */ + count = ROUND_DOWN (count, minblock); + + /* Aligned body */ + while (count) { + keep = MIN (maxlen, count); + if (next_ops->trim (nxdata, keep, offs, flags, err) == -1) + return -1; + offs += keep; + count -= keep; + } + + if (need_flush) + return next_ops->flush (nxdata, 0, err); + return 0; +} + +static int +blocksize_zero (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offs, uint32_t flags, + int *err) +{ + uint32_t keep; + uint32_t drop; + bool need_flush = false; + + if (flags & NBDKIT_FLAG_FAST_ZERO) { + /* If we have to split the transaction, an ENOTSUP fast failure in + * a later call would be unnecessarily delayed behind earlier + * calls; it's easier to just declare that anything that can't be + * done in one call to the plugin is not fast. + */ + if ((offs | count) & (minblock - 1) || count > maxlen) { + *err = ENOTSUP; + return -1; + } + } + + if ((flags & NBDKIT_FLAG_FUA) && + next_ops->can_fua (nxdata) == NBDKIT_FUA_EMULATE) { + flags &= ~NBDKIT_FLAG_FUA; + need_flush = true; + } + + /* Unaligned head */ + if (offs & (minblock - 1)) { + drop = offs & (minblock - 1); + keep = MIN (minblock - drop, count); + if (next_ops->pread (nxdata, bounce, minblock, offs - drop, 0, err) == -1) + return -1; + memset (bounce + drop, 0, keep); + if (next_ops->pwrite (nxdata, bounce, minblock, offs - drop, + flags & ~NBDKIT_FLAG_MAY_TRIM, err) == -1) + return -1; + offs += keep; + count -= keep; + } + + /* Aligned body */ + while (count >= minblock) { + keep = MIN (maxlen, ROUND_DOWN (count, minblock)); + if (next_ops->zero (nxdata, keep, offs, flags, err) == -1) + return -1; + offs += keep; + count -= keep; + } + + /* Unaligned tail */ + if (count) { + if (next_ops->pread (nxdata, bounce, minblock, offs, 0, err) == -1) + return -1; + memset (bounce, 0, count); + if (next_ops->pwrite (nxdata, bounce, minblock, offs, + flags & ~NBDKIT_FLAG_MAY_TRIM, err) == -1) + return -1; + } + + if (need_flush) + return next_ops->flush (nxdata, 0, err); + return 0; +} + +static int +blocksize_extents (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, + uint32_t flags, struct nbdkit_extents *extents, int *err) +{ + /* Ask the plugin for blocksize-aligned data. Copying that into the + * callers' extents will then take care of truncating unaligned + * ends. Also we only need to ask for maxlen of data, because it's + * fine to return less than the full count as long as we're making + * progress. + */ + CLEANUP_EXTENTS_FREE struct nbdkit_extents *extents2 = NULL; + size_t i; + struct nbdkit_extent e; + + extents2 = nbdkit_extents_new (ROUND_DOWN (offset, minblock), + ROUND_UP (offset + count, minblock)); + if (extents2 == NULL) { + *err = errno; + return -1; + } + + if (nbdkit_extents_aligned (next_ops, nxdata, + MIN (ROUND_UP (count, minblock), maxlen), + ROUND_DOWN (offset, minblock), + flags, minblock, extents2, err) == -1) + return -1; + + for (i = 0; i < nbdkit_extents_count (extents2); ++i) { + e = nbdkit_get_extent (extents2, i); + if (nbdkit_add_extent (extents, e.offset, e.length, e.type) == -1) { + *err = errno; + return -1; + } + } + return 0; +} + +static int +blocksize_cache (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offs, uint32_t flags, + int *err) +{ + uint32_t limit; + uint64_t remaining = count; /* Rounding out could exceed 32 bits */ + + /* Unaligned head */ + limit = offs & (minblock - 1); + remaining += limit; + offs -= limit; + + /* Unaligned tail */ + remaining = ROUND_UP (remaining, minblock); + + /* Aligned body */ + while (remaining) { + limit = MIN (maxdata, remaining); + if (next_ops->cache (nxdata, limit, offs, flags, err) == -1) + return -1; + offs += limit; + remaining -= limit; + } + + return 0; +} + +static struct nbdkit_filter filter = { + .name = "blocksize", + .longname = "nbdkit blocksize filter", + .thread_model = blocksize_thread_model, + .config = blocksize_config, + .config_complete = blocksize_config_complete, + .config_help = blocksize_config_help, + .get_size = blocksize_get_size, + .can_multi_conn = blocksize_can_multi_conn, + .pread = blocksize_pread, + .pwrite = blocksize_pwrite, + .trim = blocksize_trim, + .zero = blocksize_zero, + .extents = blocksize_extents, + .cache = blocksize_cache, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/blocksize/nbdkit-blocksize-filter.pod b/filters/blocksize/nbdkit-blocksize-filter.pod new file mode 100644 index 0000000..0131b49 --- /dev/null +++ b/filters/blocksize/nbdkit-blocksize-filter.pod @@ -0,0 +1,124 @@ +=head1 NAME + +nbdkit-blocksize-filter - nbdkit blocksize filter + +=head1 SYNOPSIS + + nbdkit --filter=blocksize plugin [minblock=SIZE] [maxdata=SIZE] \ + [maxlen=SIZE] [plugin-args...] + +=head1 DESCRIPTION + +C is a filter that ensures various block size +limits are met on transactions presented to the plugin. The NBD +protocol permits clients to send requests with a granularity as small +as 1 byte or as large as nearly 4 gigabytes, although it suggests that +portable clients should align requests to 512 bytes and not exceed 32 +megabytes without prior coordination with the server. + +Meanwhile, some plugins require requests to be aligned to 512-byte +multiples, or may enforce a maximum transaction size to bound the time +or memory resources spent by any one command (note that nbdkit itself +refuses a read or write larger than 64 megabytes, while many other NBD +servers limit things to 32 megabytes). The blocksize filter can be +used to modify the client requests to meet the plugin restrictions. + +=head1 PARAMETERS + +The nbdkit-blocksize-filter accepts the following parameters. + +=over 4 + +=item BSIZE + +The minimum block size and alignment to pass to the plugin. This must +be a power of two, and no larger than 64k. If omitted, this defaults +to 1 (that is, no minimum size restrictions). The filter rounds up +read requests to alignment boundaries, performs read-modify-write +cycles for any unaligned head or tail of a write or zero request, and +silently ignores any unaligned head or tail of a trim request. The +filter also truncates the plugin size down to an aligned value (as it +cannot safely operate on the unaligned tail). If you need to round +the image size up instead to access the last few bytes, combine this +filter with L. + +This parameter understands the suffix 'k' for 1024. + +=item BSIZE + +The maximum block size for any single transaction with data (read and +write). If omitted, this defaults to 64 megabytes (that is, the +nbdkit maximum). This need not be a power of two, but must be an +integer multiple of C. The filter fragments any larger +client request into multiple plugin requests. + +This parameter understands the suffixes 'k', 'M', and 'G' for powers +of 1024. + +=item BSIZE + +The maximum length for any single transaction without data (trim, zero +or extents). If omitted, this defaults to 0xffffffff rounded down to +C alignment (that is, the inherent 32-bit limit of the NBD +protocol). This need not be a power of two, but must be an integer +multiple of C, and should be at least as large as +C. The filter fragments any larger client request into +multiple plugin requests. + +This parameter understands the suffixes 'k', 'M', and 'G' for powers +of 1024. + +=back + +=head1 EXAMPLES + +Allow an arbitrary client to use the VDDK plugin (which is limited to +512-byte blocks), without having to fix the client to avoid sending +unaligned requests: + + nbdkit --filter=blocksize vddk minblock=512 file=/absolute/path/to/file.vmdk + +Allow an arbitrary client tuned to nbdkit's 64 megabyte sizing to +connect to a remote server that insists on 32 megabyte sizing, via the +nbd plugin: + + nbdkit --filter=blocksize nbd maxdata=32M socket=/path/to/socket + +Serve a file as if it were a block device that insists on 4k +alignment, while still allowing access to any unaligned bytes at the +end of the file: + + nbdkit --filter=blocksize --filter=truncate file /path/to/file \ + minblock=4k round-up=4k + +=head1 FILES + +=over 4 + +=item F<$filterdir/nbdkit-blocksize-filter.so> + +The filter. + +Use C to find the location of C<$filterdir>. + +=back + +=head1 VERSION + +C first appeared in nbdkit 1.4. + +=head1 SEE ALSO + +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Eric Blake + +=head1 COPYRIGHT + +Copyright (C) 2018 Red Hat Inc. diff --git a/filters/cache/Makefile.am b/filters/cache/Makefile.am new file mode 100644 index 0000000..200cda1 --- /dev/null +++ b/filters/cache/Makefile.am @@ -0,0 +1,76 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-cache-filter.pod + +filter_LTLIBRARIES = nbdkit-cache-filter.la + +nbdkit_cache_filter_la_SOURCES = \ + blk.c \ + blk.h \ + cache.c \ + cache.h \ + lru.c \ + lru.h \ + reclaim.c \ + reclaim.h \ + $(top_srcdir)/include/nbdkit-filter.h \ + $(NULL) + +nbdkit_cache_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/bitmap \ + -I$(top_srcdir)/common/include \ + -I$(top_srcdir)/common/utils \ + $(NULL) +nbdkit_cache_filter_la_CFLAGS = $(WARNINGS_CFLAGS) +nbdkit_cache_filter_la_LDFLAGS = \ + -module -avoid-version -shared $(NO_UNDEFINED_ON_WINDOWS) \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms \ + $(NULL) +nbdkit_cache_filter_la_LIBADD = \ + $(top_builddir)/common/bitmap/libbitmap.la \ + $(top_builddir)/common/utils/libutils.la \ + $(NULL) + +if HAVE_POD + +man_MANS = nbdkit-cache-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-cache-filter.1: nbdkit-cache-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/cache/Makefile.in b/filters/cache/Makefile.in new file mode 100644 index 0000000..69bf3e4 --- /dev/null +++ b/filters/cache/Makefile.in @@ -0,0 +1,951 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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+.PRECIOUS: Makefile + + +@HAVE_POD_TRUE@nbdkit-cache-filter.1: nbdkit-cache-filter.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/filters/cache/blk.c b/filters/cache/blk.c new file mode 100644 index 0000000..60c12ca --- /dev/null +++ b/filters/cache/blk.c @@ -0,0 +1,346 @@ +/* nbdkit + * Copyright (C) 2018-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* These are the block operations. They always read or write a single + * whole block of size ‘blksize’. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "bitmap.h" +#include "minmax.h" +#include "utils.h" + +#include "cache.h" +#include "blk.h" +#include "lru.h" +#include "reclaim.h" + +/* The cache. */ +static int fd = -1; + +/* Bitmap. There are two bits per block which are updated as we read, + * write back or write through blocks. + * + * 00 = not in cache + * 01 = block cached and clean + * 10 = + * 11 = block cached and dirty + * + * Future enhancement: + * + * We need to cache information about holes, ie. blocks which read as + * zeroes but are not explicitly stored in the cache. This + * information could be set when clients call cache_zero (and defer + * calling plugin->zero until flush). The information could also + * interact with extents, so when plugin->extents returns information + * that a hole exists we can record this information in the cache and + * not have to query the plugin a second time (especially useful for + * VDDK where querying extents is slow, and for qemu which [in 2019] + * repeatedly requests the same information with REQ_ONE set). + */ +static struct bitmap bm; + +enum bm_entry { + BLOCK_NOT_CACHED = 0, /* assumed to be zero by reclaim code */ + BLOCK_CLEAN = 1, + BLOCK_DIRTY = 3, +}; + +int +blk_init (void) +{ + const char *tmpdir; + size_t len; + char *template; + struct statvfs statvfs; + + tmpdir = getenv ("TMPDIR"); + if (!tmpdir) + tmpdir = LARGE_TMPDIR; + + nbdkit_debug ("cache: temporary directory for cache: %s", tmpdir); + + len = strlen (tmpdir) + 8; + template = alloca (len); + snprintf (template, len, "%s/XXXXXX", tmpdir); + +#ifdef HAVE_MKOSTEMP + fd = mkostemp (template, O_CLOEXEC); +#else + /* Not atomic, but this is only invoked during .load, so the race + * won't affect any plugin actions trying to fork + */ + fd = mkstemp (template); + if (fd >= 0) { + fd = set_cloexec (fd); + if (fd < 0) { + int e = errno; + unlink (template); + errno = e; + } + } +#endif + if (fd == -1) { + nbdkit_error ("mkostemp: %s: %m", tmpdir); + return -1; + } + + unlink (template); + + /* Choose the block size. + * + * A 4K block size means that we need 64 MB of memory to store the + * bitmaps for a 1 TB underlying image. However to support + * hole-punching (for reclaiming) we need the block size to be at + * least as large as the filesystem block size. + */ + if (fstatvfs (fd, &statvfs) == -1) { + nbdkit_error ("fstatvfs: %s: %m", tmpdir); + return -1; + } + blksize = MAX (4096, statvfs.f_bsize); + nbdkit_debug ("cache: block size: %u", blksize); + + bitmap_init (&bm, blksize, 2 /* bits per block */); + + lru_init (); + + return 0; +} + +void +blk_free (void) +{ + if (fd >= 0) + close (fd); + + bitmap_free (&bm); + + lru_free (); +} + +int +blk_set_size (uint64_t new_size) +{ + if (bitmap_resize (&bm, new_size) == -1) + return -1; + + if (ftruncate (fd, new_size) == -1) { + nbdkit_error ("ftruncate: %m"); + return -1; + } + + if (lru_set_size (new_size) == -1) + return -1; + + return 0; +} + +int +blk_read (struct nbdkit_next_ops *next_ops, void *nxdata, + uint64_t blknum, uint8_t *block, int *err) +{ + off_t offset = blknum * blksize; + enum bm_entry state = bitmap_get_blk (&bm, blknum, BLOCK_NOT_CACHED); + + reclaim (fd, &bm); + + nbdkit_debug ("cache: blk_read block %" PRIu64 " (offset %" PRIu64 ") is %s", + blknum, (uint64_t) offset, + state == BLOCK_NOT_CACHED ? "not cached" : + state == BLOCK_CLEAN ? "clean" : + state == BLOCK_DIRTY ? "dirty" : + "unknown"); + + if (state == BLOCK_NOT_CACHED) { /* Read underlying plugin. */ + if (next_ops->pread (nxdata, block, blksize, offset, 0, err) == -1) + return -1; + + /* If cache-on-read, copy the block to the cache. */ + if (cache_on_read) { + nbdkit_debug ("cache: cache-on-read block %" PRIu64 + " (offset %" PRIu64 ")", + blknum, (uint64_t) offset); + + if (pwrite (fd, block, blksize, offset) == -1) { + *err = errno; + nbdkit_error ("pwrite: %m"); + return -1; + } + bitmap_set_blk (&bm, blknum, BLOCK_CLEAN); + lru_set_recently_accessed (blknum); + } + return 0; + } + else { /* Read cache. */ + if (pread (fd, block, blksize, offset) == -1) { + *err = errno; + nbdkit_error ("pread: %m"); + return -1; + } + lru_set_recently_accessed (blknum); + return 0; + } +} + +int +blk_cache (struct nbdkit_next_ops *next_ops, void *nxdata, + uint64_t blknum, uint8_t *block, int *err) +{ + off_t offset = blknum * blksize; + enum bm_entry state = bitmap_get_blk (&bm, blknum, BLOCK_NOT_CACHED); + + reclaim (fd, &bm); + + nbdkit_debug ("cache: blk_cache block %" PRIu64 " (offset %" PRIu64 ") is %s", + blknum, (uint64_t) offset, + state == BLOCK_NOT_CACHED ? "not cached" : + state == BLOCK_CLEAN ? "clean" : + state == BLOCK_DIRTY ? "dirty" : + "unknown"); + + if (state == BLOCK_NOT_CACHED) { + /* Read underlying plugin, copy to cache regardless of cache-on-read. */ + if (next_ops->pread (nxdata, block, blksize, offset, 0, err) == -1) + return -1; + + nbdkit_debug ("cache: cache block %" PRIu64 " (offset %" PRIu64 ")", + blknum, (uint64_t) offset); + + if (pwrite (fd, block, blksize, offset) == -1) { + *err = errno; + nbdkit_error ("pwrite: %m"); + return -1; + } + bitmap_set_blk (&bm, blknum, BLOCK_CLEAN); + lru_set_recently_accessed (blknum); + } + else { +#if HAVE_POSIX_FADVISE + int r = posix_fadvise (fd, offset, blksize, POSIX_FADV_WILLNEED); + if (r) { + errno = r; + nbdkit_error ("posix_fadvise: %m"); + return -1; + } +#endif + lru_set_recently_accessed (blknum); + } + return 0; +} + +int +blk_writethrough (struct nbdkit_next_ops *next_ops, void *nxdata, + uint64_t blknum, const uint8_t *block, uint32_t flags, + int *err) +{ + off_t offset = blknum * blksize; + + reclaim (fd, &bm); + + nbdkit_debug ("cache: writethrough block %" PRIu64 " (offset %" PRIu64 ")", + blknum, (uint64_t) offset); + + if (pwrite (fd, block, blksize, offset) == -1) { + *err = errno; + nbdkit_error ("pwrite: %m"); + return -1; + } + + if (next_ops->pwrite (nxdata, block, blksize, offset, flags, err) == -1) + return -1; + + bitmap_set_blk (&bm, blknum, BLOCK_CLEAN); + lru_set_recently_accessed (blknum); + + return 0; +} + +int +blk_write (struct nbdkit_next_ops *next_ops, void *nxdata, + uint64_t blknum, const uint8_t *block, uint32_t flags, + int *err) +{ + off_t offset; + + if (cache_mode == CACHE_MODE_WRITETHROUGH || + (cache_mode == CACHE_MODE_WRITEBACK && (flags & NBDKIT_FLAG_FUA))) + return blk_writethrough (next_ops, nxdata, blknum, block, flags, err); + + offset = blknum * blksize; + + reclaim (fd, &bm); + + nbdkit_debug ("cache: writeback block %" PRIu64 " (offset %" PRIu64 ")", + blknum, (uint64_t) offset); + + if (pwrite (fd, block, blksize, offset) == -1) { + *err = errno; + nbdkit_error ("pwrite: %m"); + return -1; + } + bitmap_set_blk (&bm, blknum, BLOCK_DIRTY); + lru_set_recently_accessed (blknum); + + return 0; +} + +int +for_each_dirty_block (block_callback f, void *vp) +{ + uint64_t blknum; + enum bm_entry state; + + bitmap_for (&bm, blknum) { + state = bitmap_get_blk (&bm, blknum, BLOCK_NOT_CACHED); + if (state == BLOCK_DIRTY) { + if (f (blknum, vp) == -1) + return -1; + } + } + + return 0; +} diff --git a/filters/cache/blk.h b/filters/cache/blk.h new file mode 100644 index 0000000..84db4cb --- /dev/null +++ b/filters/cache/blk.h @@ -0,0 +1,87 @@ +/* nbdkit + * Copyright (C) 2018-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_BLK_H +#define NBDKIT_BLK_H + +/* Initialize the cache and bitmap. */ +extern int blk_init (void); + +/* Close the cache, free the bitmap. */ +extern void blk_free (void); + +/*---------------------------------------------------------------------- + * ** NOTE ** + * + * An exclusive lock must be held when you call any function below + * this line. + */ + +/* Allocate or resize the cache file and bitmap. */ +extern int blk_set_size (uint64_t new_size); + +/* Read a single block from the cache or plugin. If cache_on_read is set, + * also ensure it is cached. */ +extern int blk_read (struct nbdkit_next_ops *next_ops, void *nxdata, + uint64_t blknum, uint8_t *block, int *err) + __attribute__((__nonnull__ (1, 4, 5))); + +/* If a single block is not cached, copy it from the plugin. */ +extern int blk_cache (struct nbdkit_next_ops *next_ops, void *nxdata, + uint64_t blknum, uint8_t *block, int *err) + __attribute__((__nonnull__ (1, 4, 5))); + +/* Write to the cache and the plugin. */ +extern int blk_writethrough (struct nbdkit_next_ops *next_ops, void *nxdata, + uint64_t blknum, const uint8_t *block, + uint32_t flags, int *err) + __attribute__((__nonnull__ (1, 4, 6))); + +/* Write a whole block. + * + * If the cache is in writethrough mode, or the FUA flag is set, then + * this calls blk_writethrough above which will write both to the + * cache and through to the underlying device. + * + * Otherwise it will only write to the cache. + */ +extern int blk_write (struct nbdkit_next_ops *next_ops, void *nxdata, + uint64_t blknum, const uint8_t *block, + uint32_t flags, int *err) + __attribute__((__nonnull__ (1, 4, 6))); + +/* Iterates over each dirty block in the cache. */ +typedef int (*block_callback) (uint64_t blknum, void *vp); +extern int for_each_dirty_block (block_callback f, void *vp) + __attribute__((__nonnull__ (1))); + +#endif /* NBDKIT_BLK_H */ diff --git a/filters/cache/cache.c b/filters/cache/cache.c new file mode 100644 index 0000000..db32619 --- /dev/null +++ b/filters/cache/cache.c @@ -0,0 +1,648 @@ +/* nbdkit + * Copyright (C) 2018-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#ifdef HAVE_ALLOCA_H +#include +#endif + +#include + +#include "cleanup.h" + +#include "cache.h" +#include "blk.h" +#include "reclaim.h" +#include "isaligned.h" +#include "minmax.h" +#include "rounding.h" + +/* In order to handle parallel requests safely, this lock must be held + * when calling any blk_* functions. + */ +static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER; + +unsigned blksize; +enum cache_mode cache_mode = CACHE_MODE_WRITEBACK; +int64_t max_size = -1; +unsigned hi_thresh = 95, lo_thresh = 80; +bool cache_on_read = false; + +static int cache_flush (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle, uint32_t flags, int *err); + +static void +cache_load (void) +{ + if (blk_init () == -1) + exit (EXIT_FAILURE); +} + +static void +cache_unload (void) +{ + blk_free (); +} + +static int +cache_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + if (strcmp (key, "cache") == 0) { + if (strcmp (value, "writeback") == 0) { + cache_mode = CACHE_MODE_WRITEBACK; + return 0; + } + else if (strcmp (value, "writethrough") == 0) { + cache_mode = CACHE_MODE_WRITETHROUGH; + return 0; + } + else if (strcmp (value, "unsafe") == 0) { + cache_mode = CACHE_MODE_UNSAFE; + return 0; + } + else { + nbdkit_error ("invalid cache parameter, should be " + "writeback|writethrough|unsafe"); + return -1; + } + } +#ifdef HAVE_CACHE_RECLAIM + else if (strcmp (key, "cache-max-size") == 0) { + int64_t r; + + r = nbdkit_parse_size (value); + if (r == -1) + return -1; + /* We set a lower limit for the cache size just to keep out of + * trouble. + */ + if (r < 1024*1024) { + nbdkit_error ("cache-max-size is too small"); + return -1; + } + max_size = r; + return 0; + } + else if (strcmp (key, "cache-high-threshold") == 0) { + if (nbdkit_parse_unsigned ("cache-high-threshold", + value, &hi_thresh) == -1) + return -1; + if (hi_thresh == 0) { + nbdkit_error ("cache-high-threshold must be greater than zero"); + return -1; + } + return 0; + } + else if (strcmp (key, "cache-low-threshold") == 0) { + if (nbdkit_parse_unsigned ("cache-low-threshold", + value, &lo_thresh) == -1) + return -1; + if (lo_thresh == 0) { + nbdkit_error ("cache-low-threshold must be greater than zero"); + return -1; + } + return 0; + } +#else /* !HAVE_CACHE_RECLAIM */ + else if (strcmp (key, "cache-max-size") == 0 || + strcmp (key, "cache-high-threshold") == 0 || + strcmp (key, "cache-low-threshold") == 0) { + nbdkit_error ("this platform does not support cache reclaim"); + return -1; + } +#endif /* !HAVE_CACHE_RECLAIM */ + else if (strcmp (key, "cache-on-read") == 0) { + int r; + + r = nbdkit_parse_bool (value); + if (r == -1) + return -1; + cache_on_read = r; + return 0; + } + else { + return next (nxdata, key, value); + } +} + +#define cache_config_help_common \ + "cache=MODE Set cache MODE, one of writeback (default),\n" \ + " writethrough, or unsafe.\n" \ + "cache-on-read=BOOL Set to true to cache on reads (default false).\n" +#ifndef HAVE_CACHE_RECLAIM +#define cache_config_help cache_config_help_common +#else +#define cache_config_help cache_config_help_common \ + "cache-max-size=SIZE Set maximum space used by cache.\n" \ + "cache-high-threshold=PCT Percentage of max size where reclaim begins.\n" \ + "cache-low-threshold=PCT Percentage of max size where reclaim ends.\n" +#endif + +static int +cache_config_complete (nbdkit_next_config_complete *next, void *nxdata) +{ + /* If cache-max-size was set then check the thresholds. */ + if (max_size != -1) { + if (lo_thresh >= hi_thresh) { + nbdkit_error ("cache-low-threshold must be " + "less than cache-high-threshold"); + return -1; + } + } + + return next (nxdata); +} + +/* Get the file size; round it down to cache granularity before + * setting cache size. + */ +static int64_t +cache_get_size (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + int64_t size; + int r; + + size = next_ops->get_size (nxdata); + if (size == -1) + return -1; + + nbdkit_debug ("cache: underlying file size: %" PRIi64, size); + size = ROUND_DOWN (size, blksize); + + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + r = blk_set_size (size); + if (r == -1) + return -1; + + return size; +} + +/* Force an early call to cache_get_size, consequently truncating the + * cache to the correct size. + */ +static int +cache_prepare (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, int readonly) +{ + int64_t r; + + r = cache_get_size (next_ops, nxdata, handle); + if (r < 0) + return -1; + return 0; +} + +/* Override the plugin's .can_cache, because we are caching here instead */ +static int +cache_can_cache (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle) +{ + return NBDKIT_CACHE_NATIVE; +} + +/* Override the plugin's .can_fast_zero, because our .zero is not fast */ +static int +cache_can_fast_zero (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + /* It is better to advertise support even when we always reject fast + * zero attempts. + */ + return 1; +} + +/* Read data. */ +static int +cache_pread (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + CLEANUP_FREE uint8_t *block = NULL; + uint64_t blknum, blkoffs; + int r; + + assert (!flags); + if (!IS_ALIGNED (count | offset, blksize)) { + block = malloc (blksize); + if (block == NULL) { + *err = errno; + nbdkit_error ("malloc: %m"); + return -1; + } + } + + blknum = offset / blksize; /* block number */ + blkoffs = offset % blksize; /* offset within the block */ + + /* Unaligned head */ + if (blkoffs) { + uint64_t n = MIN (blksize - blkoffs, count); + + assert (block); + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + r = blk_read (next_ops, nxdata, blknum, block, err); + if (r == -1) + return -1; + + memcpy (buf, &block[blkoffs], n); + + buf += n; + count -= n; + offset += n; + blknum++; + } + + /* Aligned body */ + /* XXX This breaks up large read requests into smaller ones, which + * is a problem for plugins which have a large, fixed per-request + * overhead (hello, curl). We should try to keep large requests + * together as much as possible, but that requires us to be much + * smarter here. + */ + while (count >= blksize) { + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + r = blk_read (next_ops, nxdata, blknum, buf, err); + if (r == -1) + return -1; + + buf += blksize; + count -= blksize; + offset += blksize; + blknum++; + } + + /* Unaligned tail */ + if (count) { + assert (block); + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + r = blk_read (next_ops, nxdata, blknum, block, err); + if (r == -1) + return -1; + + memcpy (buf, block, count); + } + + return 0; +} + +/* Write data. */ +static int +cache_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, const void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + CLEANUP_FREE uint8_t *block = NULL; + uint64_t blknum, blkoffs; + int r; + bool need_flush = false; + + if (!IS_ALIGNED (count | offset, blksize)) { + block = malloc (blksize); + if (block == NULL) { + *err = errno; + nbdkit_error ("malloc: %m"); + return -1; + } + } + + if ((flags & NBDKIT_FLAG_FUA) && + next_ops->can_fua (nxdata) == NBDKIT_FUA_EMULATE) { + flags &= ~NBDKIT_FLAG_FUA; + need_flush = true; + } + + blknum = offset / blksize; /* block number */ + blkoffs = offset % blksize; /* offset within the block */ + + /* Unaligned head */ + if (blkoffs) { + uint64_t n = MIN (blksize - blkoffs, count); + + /* Do a read-modify-write operation on the current block. + * Hold the lock over the whole operation. + */ + assert (block); + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + r = blk_read (next_ops, nxdata, blknum, block, err); + if (r != -1) { + memcpy (&block[blkoffs], buf, n); + r = blk_write (next_ops, nxdata, blknum, block, flags, err); + } + if (r == -1) + return -1; + + buf += n; + count -= n; + offset += n; + blknum++; + } + + /* Aligned body */ + while (count >= blksize) { + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + r = blk_write (next_ops, nxdata, blknum, buf, flags, err); + if (r == -1) + return -1; + + buf += blksize; + count -= blksize; + offset += blksize; + blknum++; + } + + /* Unaligned tail */ + if (count) { + assert (block); + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + r = blk_read (next_ops, nxdata, blknum, block, err); + if (r != -1) { + memcpy (block, buf, count); + r = blk_write (next_ops, nxdata, blknum, block, flags, err); + } + if (r == -1) + return -1; + } + + if (need_flush) + return cache_flush (next_ops, nxdata, handle, 0, err); + return 0; +} + +/* Zero data. */ +static int +cache_zero (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, uint32_t flags, + int *err) +{ + CLEANUP_FREE uint8_t *block = NULL; + uint64_t blknum, blkoffs; + int r; + bool need_flush = false; + + /* We are purposefully avoiding next_ops->zero, so a zero request is + * never faster than plain writes. + */ + if (flags & NBDKIT_FLAG_FAST_ZERO) { + *err = ENOTSUP; + return -1; + } + + block = malloc (blksize); + if (block == NULL) { + *err = errno; + nbdkit_error ("malloc: %m"); + return -1; + } + + flags &= ~NBDKIT_FLAG_MAY_TRIM; + if ((flags & NBDKIT_FLAG_FUA) && + next_ops->can_fua (nxdata) == NBDKIT_FUA_EMULATE) { + flags &= ~NBDKIT_FLAG_FUA; + need_flush = true; + } + + blknum = offset / blksize; /* block number */ + blkoffs = offset % blksize; /* offset within the block */ + + /* Unaligned head */ + if (blkoffs) { + uint64_t n = MIN (blksize - blkoffs, count); + + /* Do a read-modify-write operation on the current block. + * Hold the lock over the whole operation. + */ + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + r = blk_read (next_ops, nxdata, blknum, block, err); + if (r != -1) { + memset (&block[blkoffs], 0, n); + r = blk_write (next_ops, nxdata, blknum, block, flags, err); + } + if (r == -1) + return -1; + + count -= n; + offset += n; + blknum++; + } + + /* Aligned body */ + if (count >= blksize) + memset (block, 0, blksize); + while (count >=blksize) { + /* Intentional that we do not use next_ops->zero */ + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + r = blk_write (next_ops, nxdata, blknum, block, flags, err); + if (r == -1) + return -1; + + count -= blksize; + offset += blksize; + blknum++; + } + + /* Unaligned tail */ + if (count) { + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + r = blk_read (next_ops, nxdata, blknum, block, err); + if (r != -1) { + memset (&block[count], 0, blksize - count); + r = blk_write (next_ops, nxdata, blknum, block, flags, err); + } + if (r == -1) + return -1; + } + + if (need_flush) + return cache_flush (next_ops, nxdata, handle, 0, err); + return 0; +} + +/* Flush: Go through all the dirty blocks, flushing them to disk. */ +struct flush_data { + uint8_t *block; /* bounce buffer */ + unsigned errors; /* count of errors seen */ + int first_errno; /* first errno seen */ + struct nbdkit_next_ops *next_ops; + void *nxdata; +}; + +static int flush_dirty_block (uint64_t blknum, void *); + +static int +cache_flush (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle, + uint32_t flags, int *err) +{ + CLEANUP_FREE uint8_t *block = NULL; + struct flush_data data = + { .errors = 0, .first_errno = 0, .next_ops = next_ops, .nxdata = nxdata }; + int tmp; + + if (cache_mode == CACHE_MODE_UNSAFE) + return 0; + + assert (!flags); + + /* Allocate the bounce buffer. */ + block = malloc (blksize); + if (block == NULL) { + *err = errno; + nbdkit_error ("malloc: %m"); + return -1; + } + data.block = block; + + /* In theory if cache_mode == CACHE_MODE_WRITETHROUGH then there + * should be no dirty blocks. However we go through the cache here + * to be sure. Also we still need to issue the flush to the + * underlying storage. + */ + { + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + for_each_dirty_block (flush_dirty_block, &data); + } + + /* Now issue a flush request to the underlying storage. */ + if (next_ops->flush (nxdata, 0, + data.errors ? &tmp : &data.first_errno) == -1) + data.errors++; + + if (data.errors > 0) { + *err = data.first_errno; + return -1; + } + return 0; +} + +static int +flush_dirty_block (uint64_t blknum, void *datav) +{ + struct flush_data *data = datav; + int tmp; + + /* Perform a read + writethrough which will read from the + * cache and write it through to the underlying storage. + */ + if (blk_read (data->next_ops, data->nxdata, blknum, data->block, + data->errors ? &tmp : &data->first_errno) == -1) + goto err; + if (blk_writethrough (data->next_ops, data->nxdata, blknum, data->block, 0, + data->errors ? &tmp : &data->first_errno) == -1) + goto err; + + return 0; + + err: + nbdkit_error ("cache: flush of block %" PRIu64 " failed", blknum); + data->errors++; + return 0; /* continue scanning and flushing. */ +} + +/* Cache data. */ +static int +cache_cache (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + CLEANUP_FREE uint8_t *block = NULL; + uint64_t blknum, blkoffs; + int r; + uint64_t remaining = count; /* Rounding out could exceed 32 bits */ + + assert (!flags); + block = malloc (blksize); + if (block == NULL) { + *err = errno; + nbdkit_error ("malloc: %m"); + return -1; + } + + blknum = offset / blksize; /* block number */ + blkoffs = offset % blksize; /* offset within the block */ + + /* Unaligned head */ + remaining += blkoffs; + offset -= blkoffs; + + /* Unaligned tail */ + remaining = ROUND_UP (remaining, blksize); + + /* Aligned body */ + while (remaining) { + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + r = blk_cache (next_ops, nxdata, blknum, block, err); + if (r == -1) + return -1; + + remaining -= blksize; + offset += blksize; + blknum++; + } + + return 0; +} + +static struct nbdkit_filter filter = { + .name = "cache", + .longname = "nbdkit caching filter", + .load = cache_load, + .unload = cache_unload, + .config = cache_config, + .config_complete = cache_config_complete, + .config_help = cache_config_help, + .prepare = cache_prepare, + .get_size = cache_get_size, + .can_cache = cache_can_cache, + .can_fast_zero = cache_can_fast_zero, + .pread = cache_pread, + .pwrite = cache_pwrite, + .zero = cache_zero, + .flush = cache_flush, + .cache = cache_cache, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/cache/cache.h b/filters/cache/cache.h new file mode 100644 index 0000000..2b72221 --- /dev/null +++ b/filters/cache/cache.h @@ -0,0 +1,55 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_CACHE_H +#define NBDKIT_CACHE_H + +#include + +/* Caching mode. */ +extern enum cache_mode { + CACHE_MODE_WRITEBACK, + CACHE_MODE_WRITETHROUGH, + CACHE_MODE_UNSAFE, +} cache_mode; + +/* Size of a block in the cache. */ +extern unsigned blksize; + +/* Maximum size of the cache and high/low thresholds. */ +extern int64_t max_size; +extern unsigned hi_thresh, lo_thresh; + +/* Cache read requests. */ +extern bool cache_on_read; + +#endif /* NBDKIT_CACHE_H */ diff --git a/filters/cache/lru.c b/filters/cache/lru.c new file mode 100644 index 0000000..1c3c3e1 --- /dev/null +++ b/filters/cache/lru.c @@ -0,0 +1,152 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* These are the block operations. They always read or write a single + * whole block of size ‘blksize’. + */ + +#include + +#include +#include +#include +#include +#include + +#include + +#include "bitmap.h" +#include "minmax.h" + +#include "cache.h" +#include "blk.h" +#include "lru.h" + +/* LRU bitmaps. These bitmaps implement a simple, fast LRU structure. + * + * bm[0] bm[1] blocks not in either bitmap + * ┌─────────┬──────────────────┬─────────────────────────────┐ + * │ │ │ │ + * └─────────┴──────────────────┴─────────────────────────────┘ + * ↑ c1 bits set + * c0 bits set + * + * The LRU structure keeps track of the [approx] last N distinct + * blocks which have been most recently accessed. It can answer in + * O(1) time the question: “Is a particular block in or not in the N + * distinct blocks most recently accessed?” + * + * To do this we keep two bitmaps. + * + * When a new block is accessed, we set the corresponding bit in bm[0] + * and increment c0 (c0 counts the number of bits set in bm[0]). If + * c0 == N/2 then we swap the two bitmaps, clear bm[0], and reset c0 + * to 0. + * + * To check if a block has been accessed within the previous N + * distinct accesses, we simply have to check both bitmaps. If it is + * not in either bitmap, then it's old and a candidate to be + * reclaimed. + * + * You'll note that in fact we only keep track of between N/2 and N + * recently accessed blocks. We could make the estimate more accurate + * by having more bitmaps, but as this is only a heuristic we choose + * to keep the implementation simple and memory usage low instead. + */ +static struct bitmap bm[2]; +static unsigned c0 = 0, c1 = 0; +static unsigned N = 100; + +void +lru_init (void) +{ + bitmap_init (&bm[0], blksize, 1 /* bits per block */); + bitmap_init (&bm[1], blksize, 1 /* bits per block */); +} + +void +lru_free (void) +{ + bitmap_free (&bm[0]); + bitmap_free (&bm[1]); +} + +int +lru_set_size (uint64_t new_size) +{ + if (bitmap_resize (&bm[0], new_size) == -1) + return -1; + if (bitmap_resize (&bm[1], new_size) == -1) + return -1; + + if (max_size != -1) + /* Make the threshold about 1/4 the maximum size of the cache. */ + N = MAX (max_size / blksize / 4, 100); + else + N = MAX (new_size / blksize / 4, 100); + + return 0; +} + +void +lru_set_recently_accessed (uint64_t blknum) +{ + /* If the block is already set in the first bitmap, don't need to do + * anything. + */ + if (bitmap_get_blk (&bm[0], blknum, false)) + return; + + bitmap_set_blk (&bm[0], blknum, true); + c0++; + + /* If we've reached N/2 then we need to swap over the bitmaps. */ + if (c0 >= N/2) { + struct bitmap tmp; + + tmp = bm[0]; + bm[0] = bm[1]; + bm[1] = tmp; + c1 = c0; + + bitmap_clear (&bm[0]); + c0 = 0; + } +} + +bool +lru_has_been_recently_accessed (uint64_t blknum) +{ + return + bitmap_get_blk (&bm[0], blknum, false) || + bitmap_get_blk (&bm[1], blknum, false); +} diff --git a/filters/cache/lru.h b/filters/cache/lru.h new file mode 100644 index 0000000..673f39e --- /dev/null +++ b/filters/cache/lru.h @@ -0,0 +1,53 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_LRU_H +#define NBDKIT_LRU_H + +#include + +/* Initialize LRU. */ +extern void lru_init (void); + +/* Free the LRU. */ +extern void lru_free (void); + +/* Notify LRU that the virtual size has changed. */ +extern int lru_set_size (uint64_t new_size); + +/* Mark a block as recently accessed in the LRU structure. */ +extern void lru_set_recently_accessed (uint64_t blknum); + +/* Check if a block has been recently accessed. */ +extern bool lru_has_been_recently_accessed (uint64_t blknum); + +#endif /* NBDKIT_LRU_H */ diff --git a/filters/cache/nbdkit-cache-filter.pod b/filters/cache/nbdkit-cache-filter.pod new file mode 100644 index 0000000..3601dcd --- /dev/null +++ b/filters/cache/nbdkit-cache-filter.pod @@ -0,0 +1,183 @@ +=head1 NAME + +nbdkit-cache-filter - nbdkit caching filter + +=head1 SYNOPSIS + + nbdkit --filter=cache plugin [cache=writeback|writethrough|unsafe] + [cache-max-size=SIZE] + [cache-high-threshold=N] + [cache-low-threshold=N] + [cache-on-read=true|false] + [plugin-args...] + +=head1 DESCRIPTION + +C is a filter that adds caching on top of a +plugin. This is useful if a plugin is slow or expensive to use, +because nbdkit will try to minimize requests to the plugin by caching +previous requests. + +Note that many NBD I are able to do caching, and because the +caching happens on the client side it will usually be more effective +than caching inside the server. This filter can be used if the client +does not have effective caching, or (with C) to defeat +flush requests from the client (which is unsafe and can cause data +loss, as the name suggests). + +Note that the use of this filter rounds the image size down to a +multiple of the caching granularity (the larger of 4096 or the +C field of L), to ease the implementation. If +you need to round the image size up instead to access the last few +bytes, combine this filter with L. + +This filter only caches image contents. To cache image metadata, use +L between this filter and the plugin. +To accelerate sequential reads, use L +instead. + +=head1 PARAMETERS + +=over 4 + +=item B + +Store writes in the cache. They are not written to the plugin unless +an explicit flush is done by the client. + +This is the default caching mode, and is safe if your client issues +flush requests correctly (which is true for modern Linux and other +well-written NBD clients). + +=item B + +Always force writes through to the plugin. + +This makes the cache less effective, but is necessary if your client +does not issue correct flush requests. + +=item B + +Ignore flush requests. Never write to the plugin unless the cache +grows too large. + +This is dangerous and can cause data loss, but this may be acceptable +if you only use it for testing or with data that you don't care about +or can cheaply reconstruct. + +=item BSIZE + +=item BN + +=item BN + +(nbdkit E 1.10) + +Limit the size of the cache to C. See L below. + +=item B + +(nbdkit E 1.10) + +Cache read requests as well as write and cache requests. Any time a +block is read from the plugin, it is saved in the cache (if there is +sufficient space) so the same data can be served more quickly later. + +Note that if the underlying data served by the plugin can be modified +by some other means (eg. something else can write to a file which is +being served by L), this option will cause +nbdkit to serve stale data because reads won't always go through to +the plugin. + +=item B + +Do not cache read requests (this is the default). + +=back + +=head1 CACHE MAXIMUM SIZE + +By default the cache can grow to any size (although not larger than +the virtual size of the underlying plugin) and you have to ensure +there is sufficient space in C<$TMPDIR> for it. + +Using the parameters C, C and +C you can limit the maximum size of the cache. + +This requires kernel and filesystem support (for L +C), so it may not work on all platforms. + +Some examples: + +=over 4 + +=item C + +The cache is limited to around 1 gigabyte. + +=item C + +Once the cache size reaches 972M (95% of 1G), blocks are reclaimed +from the cache until the size is reduced to 819M (80% of 1G). + +=back + +The way this works is once the size of the cache exceeds +S ✕ the high threshold>, the filter works to reduce the size +of the cache until it is less than S ✕ the low threshold>. +Once the size is below the low threshold, no more reclaim work is done +until the size exceeds the high threshold again. + +The default thresholds are high 95% and low 80%. You must set +S<0 E low E high>. The thresholds are expressed as integer +percentages of C. + +Least recently used blocks are discarded first. + +=head1 ENVIRONMENT VARIABLES + +=over 4 + +=item C + +The cache is stored in a temporary file located in F by +default. You can override this location by setting the C +environment variable before starting nbdkit. + +=back + +=head1 FILES + +=over 4 + +=item F<$filterdir/nbdkit-cache-filter.so> + +The filter. + +Use C to find the location of C<$filterdir>. + +=back + +=head1 VERSION + +C first appeared in nbdkit 1.2. + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Eric Blake + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2018-2020 Red Hat Inc. diff --git a/filters/cache/reclaim.c b/filters/cache/reclaim.c new file mode 100644 index 0000000..eca7387 --- /dev/null +++ b/filters/cache/reclaim.c @@ -0,0 +1,206 @@ +/* nbdkit + * Copyright (C) 2018-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "bitmap.h" + +#include "cache.h" +#include "reclaim.h" +#include "lru.h" + +#ifndef HAVE_CACHE_RECLAIM + +void +reclaim (int fd, struct bitmap *bm) +{ + /* nothing */ +} + +#else /* HAVE_CACHE_RECLAIM */ + +/* If we are currently reclaiming blocks from the cache. + * + * The state machine starts in the NOT_RECLAIMING state. When the + * size of the cache exceeds the high threshold, we move to + * RECLAIMING_LRU. Once we have exhausted all LRU blocks, we move to + * RECLAIMING_ANY (reclaiming any blocks). + * + * If at any time the size of the cache goes below the low threshold + * we move back to the NOT_RECLAIMING state. + * + * A possible future enhancement is to add an extra state between LRU + * and ANY which reclaims blocks from lru.c:bm[1]. + * + * reclaim_blk is the last block that we looked at. + */ +enum reclaim_state { + NOT_RECLAIMING = 0, + RECLAIMING_LRU = 1, + RECLAIMING_ANY = 2, +}; + +static enum reclaim_state reclaiming = NOT_RECLAIMING; +static int64_t reclaim_blk; + +static void reclaim_one (int fd, struct bitmap *bm); +static void reclaim_lru (int fd, struct bitmap *bm); +static void reclaim_any (int fd, struct bitmap *bm); +static void reclaim_block (int fd, struct bitmap *bm); + +void +reclaim (int fd, struct bitmap *bm) +{ + struct stat statbuf; + uint64_t cache_allocated; + + /* If the user didn't set cache-max-size, do nothing. */ + if (max_size == -1) return; + + /* Check the allocated size of the cache. */ + if (fstat (fd, &statbuf) == -1) { + nbdkit_debug ("cache: fstat: %m"); + return; + } + cache_allocated = statbuf.st_blocks * UINT64_C(512); + + if (reclaiming) { + /* Keep reclaiming until the cache size drops below the low threshold. */ + if (cache_allocated < max_size * lo_thresh / 100) { + nbdkit_debug ("cache: stop reclaiming"); + reclaiming = NOT_RECLAIMING; + return; + } + } + else { + if (cache_allocated < max_size * hi_thresh / 100) + return; + + /* Start reclaiming if the cache size goes over the high threshold. */ + nbdkit_debug ("cache: start reclaiming"); + reclaiming = RECLAIMING_LRU; + } + + /* Reclaim up to 2 cache blocks. */ + reclaim_one (fd, bm); + reclaim_one (fd, bm); +} + +/* Reclaim a single cache block. */ +static void +reclaim_one (int fd, struct bitmap *bm) +{ + assert (reclaiming); + + if (reclaiming == RECLAIMING_LRU) + reclaim_lru (fd, bm); + else + reclaim_any (fd, bm); +} + +static void +reclaim_lru (int fd, struct bitmap *bm) +{ + int64_t old_reclaim_blk; + + /* Find the next block in the cache. */ + reclaim_blk = bitmap_next (bm, reclaim_blk+1); + old_reclaim_blk = reclaim_blk; + + /* Search for an LRU block after this one. */ + do { + if (! lru_has_been_recently_accessed (reclaim_blk)) { + reclaim_block (fd, bm); + return; + } + + reclaim_blk = bitmap_next (bm, reclaim_blk+1); + if (reclaim_blk == -1) /* wrap around */ + reclaim_blk = bitmap_next (bm, 0); + } while (reclaim_blk >= 0 && old_reclaim_blk != reclaim_blk); + + if (old_reclaim_blk == reclaim_blk) { + /* Run out of LRU blocks, so start reclaiming any block in the cache. */ + nbdkit_debug ("cache: reclaiming any blocks"); + reclaiming = RECLAIMING_ANY; + reclaim_any (fd, bm); + } +} + +static void +reclaim_any (int fd, struct bitmap *bm) +{ + /* Find the next block in the cache. */ + reclaim_blk = bitmap_next (bm, reclaim_blk+1); + if (reclaim_blk == -1) /* wrap around */ + reclaim_blk = bitmap_next (bm, 0); + + reclaim_block (fd, bm); +} + +static void +reclaim_block (int fd, struct bitmap *bm) +{ + if (reclaim_blk == -1) { + nbdkit_debug ("cache: run out of blocks to reclaim!"); + return; + } + + nbdkit_debug ("cache: reclaiming block %" PRIu64, reclaim_blk); +#ifdef FALLOC_FL_PUNCH_HOLE + if (fallocate (fd, FALLOC_FL_PUNCH_HOLE|FALLOC_FL_KEEP_SIZE, + reclaim_blk * blksize, blksize) == -1) { + nbdkit_error ("cache: reclaiming cache blocks: " + "fallocate: FALLOC_FL_PUNCH_HOLE: %m"); + return; + } +#else +#error "no implementation for punching holes" +#endif + + bitmap_set_blk (bm, reclaim_blk, 0); +} + +#endif /* HAVE_CACHE_RECLAIM */ diff --git a/filters/cache/reclaim.h b/filters/cache/reclaim.h new file mode 100644 index 0000000..6f6ac2e --- /dev/null +++ b/filters/cache/reclaim.h @@ -0,0 +1,52 @@ +/* nbdkit + * Copyright (C) 2018-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_RECLAIM_H +#define NBDKIT_RECLAIM_H + +#include "bitmap.h" + +/* Do we support reclaiming cache blocks? */ +#ifdef FALLOC_FL_PUNCH_HOLE +#define HAVE_CACHE_RECLAIM 1 +#else +#undef HAVE_CACHE_RECLAIM +#endif + +/* Check if we need to reclaim blocks, and if so reclaim up to two + * blocks. + * + * Note this must be called with the blk lock held. + */ +extern void reclaim (int fd, struct bitmap *bm); + +#endif /* NBDKIT_RECLAIM_H */ diff --git a/filters/cacheextents/Makefile.am b/filters/cacheextents/Makefile.am new file mode 100644 index 0000000..2f7a689 --- /dev/null +++ b/filters/cacheextents/Makefile.am @@ -0,0 +1,67 @@ +# nbdkit +# Copyright (C) 2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-cacheextents-filter.pod + +filter_LTLIBRARIES = nbdkit-cacheextents-filter.la + +nbdkit_cacheextents_filter_la_SOURCES = \ + cacheextents.c \ + $(top_srcdir)/include/nbdkit-filter.h \ + $(NULL) + +nbdkit_cacheextents_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include \ + -I$(top_srcdir)/common/utils \ + $(NULL) +nbdkit_cacheextents_filter_la_CFLAGS = $(WARNINGS_CFLAGS) +nbdkit_cacheextents_filter_la_LDFLAGS = \ + -module -avoid-version -shared $(NO_UNDEFINED_ON_WINDOWS) \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms \ + $(NULL) +nbdkit_cacheextents_filter_la_LIBADD = \ + $(top_builddir)/common/utils/libutils.la \ + $(NULL) + +if HAVE_POD + +man_MANS = nbdkit-cacheextents-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-cacheextents-filter.1: nbdkit-cacheextents-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/cacheextents/Makefile.in b/filters/cacheextents/Makefile.in new file mode 100644 index 0000000..ca2a837 --- /dev/null +++ b/filters/cacheextents/Makefile.in @@ -0,0 +1,909 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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nbdkit-cacheextents-filter.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/filters/cacheextents/cacheextents.c b/filters/cacheextents/cacheextents.c new file mode 100644 index 0000000..95b3c00 --- /dev/null +++ b/filters/cacheextents/cacheextents.c @@ -0,0 +1,212 @@ +/* nbdkit + * Copyright (C) 2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include + +#include + +#include + +#include "cleanup.h" + +/* -D cacheextents.cache=1: Debug cache operations. */ +int cacheextents_debug_cache = 0; + +/* This lock protects the global state. */ +static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER; + +/* Cached extents from the last extents () call and its start and end + * for the sake of simplicity. + */ +struct nbdkit_extents *cache_extents; +static uint64_t cache_start; +static uint64_t cache_end; + +static void +cacheextents_unload (void) +{ + nbdkit_extents_free (cache_extents); +} + +static int +cacheextents_add (struct nbdkit_extents *extents, int *err) +{ + size_t i = 0; + + for (i = 0; i < nbdkit_extents_count (cache_extents); i++) { + struct nbdkit_extent ex = nbdkit_get_extent (cache_extents, i); + if (nbdkit_add_extent (extents, ex.offset, ex.length, ex.type) == -1) { + *err = errno; + return -1; + } + } + + return 0; +} + +static int +fill (struct nbdkit_extents *extents, int *err) +{ + size_t i = 0; + size_t count = nbdkit_extents_count (extents); + struct nbdkit_extent first = nbdkit_get_extent (extents, 0); + struct nbdkit_extent last = nbdkit_get_extent (extents, count - 1); + + nbdkit_extents_free (cache_extents); + cache_start = first.offset; + cache_end = last.offset + last.length; + cache_extents = nbdkit_extents_new (cache_start, cache_end); + + if (!cache_extents) + return -1; + + for (i = 0; i < count; i++) { + struct nbdkit_extent ex = nbdkit_get_extent (extents, i); + + if (cacheextents_debug_cache) + nbdkit_debug ("cacheextents: updating cache with:" + " offset=%" PRIu64 + " length=%" PRIu64 + " type=%x", + ex.offset, ex.length, ex.type); + + if (nbdkit_add_extent (cache_extents, ex.offset, ex.length, + ex.type) == -1) { + *err = errno; + nbdkit_extents_free (cache_extents); + cache_extents = NULL; + return -1; + } + } + + return 0; +} + +static int +cacheextents_extents (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, + uint32_t flags, + struct nbdkit_extents *extents, + int *err) +{ + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + + if (cacheextents_debug_cache) + nbdkit_debug ("cacheextents:" + " cache_start=%" PRIu64 + " cache_end=%" PRIu64 + " cache_extents=%p", + cache_start, cache_end, cache_extents); + + if (cache_extents && + offset >= cache_start && offset < cache_end) { + if (cacheextents_debug_cache) + nbdkit_debug ("cacheextents: returning from cache"); + return cacheextents_add (extents, err); + } + + if (cacheextents_debug_cache) + nbdkit_debug ("cacheextents: cache miss"); + + /* Clear REQ_ONE to ask the plugin for as much information as it is + * willing to return (the plugin may still truncate if it is too + * costly to provide everything). + */ + flags &= ~(NBDKIT_FLAG_REQ_ONE); + if (next_ops->extents (nxdata, count, offset, flags, extents, err) == -1) + return -1; + + return fill (extents, err); +} + +/* Any changes to the data needs to clean the cache. + * + * Similar to the readahead filter this could be more intelligent, but + * there would be very little benefit. + */ + +static void +kill_cacheextents (void) +{ + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + nbdkit_extents_free (cache_extents); + cache_extents = NULL; +} + +static int +cacheextents_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, + const void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + kill_cacheextents (); + return next_ops->pwrite (nxdata, buf, count, offset, flags, err); +} + +static int +cacheextents_trim (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, + uint32_t count, uint64_t offset, uint32_t flags, + int *err) +{ + kill_cacheextents (); + return next_ops->trim (nxdata, count, offset, flags, err); +} + +static int +cacheextents_zero (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, + uint32_t count, uint64_t offset, uint32_t flags, + int *err) +{ + kill_cacheextents (); + return next_ops->zero (nxdata, count, offset, flags, err); +} + +static struct nbdkit_filter filter = { + .name = "cacheextents", + .longname = "nbdkit cacheextents filter", + .unload = cacheextents_unload, + .pwrite = cacheextents_pwrite, + .trim = cacheextents_trim, + .zero = cacheextents_zero, + .extents = cacheextents_extents, +}; + +NBDKIT_REGISTER_FILTER (filter) diff --git a/filters/cacheextents/nbdkit-cacheextents-filter.pod b/filters/cacheextents/nbdkit-cacheextents-filter.pod new file mode 100644 index 0000000..bb2514a --- /dev/null +++ b/filters/cacheextents/nbdkit-cacheextents-filter.pod @@ -0,0 +1,67 @@ +=head1 NAME + +nbdkit-cacheextents-filter - cache extents + +=head1 SYNOPSIS + + nbdkit --filter=cacheextents plugin + +=head1 DESCRIPTION + +C is a filter that caches the result of last +extents() call. + +A common use for this filter is to improve performance when using a +client performing a linear pass over the entire image while asking for +only one extent at a time (such as S>), but where +the plugin can provide multiple extents for the same high latency as a +single extent (such as L). For example: + + nbdkit -U - --filter=cacheextents --run 'qemu-img map $nbd' vddk ... + +For files with big extents (when it is unlikely for one extents() call +to return multiple different extents) this does not slow down the +access. + +This filter only caches image metadata; to also cache image contents, +place this filter between L and the plugin. + +=head1 PARAMETERS + +There are no parameters specific to nbdkit-cacheextents-filter. Any +parameters are passed through to and processed by the underlying +plugin in the normal way. + +=head1 FILES + +=over 4 + +=item F<$filterdir/nbdkit-cacheextents-filter.so> + +The filter. + +Use C to find the location of C<$filterdir>. + +=back + +=head1 VERSION + +C first appeared in nbdkit 1.14. + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Martin Kletzander + +=head1 COPYRIGHT + +Copyright (C) 2019 Red Hat Inc. diff --git a/filters/cow/Makefile.am b/filters/cow/Makefile.am new file mode 100644 index 0000000..4ff08a4 --- /dev/null +++ b/filters/cow/Makefile.am @@ -0,0 +1,71 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-cow-filter.pod + +filter_LTLIBRARIES = nbdkit-cow-filter.la + +nbdkit_cow_filter_la_SOURCES = \ + blk.c \ + blk.h \ + cow.c \ + $(top_srcdir)/include/nbdkit-filter.h \ + $(NULL) + +nbdkit_cow_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/bitmap \ + -I$(top_srcdir)/common/include \ + -I$(top_srcdir)/common/utils \ + $(NULL) +nbdkit_cow_filter_la_CFLAGS = $(WARNINGS_CFLAGS) +nbdkit_cow_filter_la_LDFLAGS = \ + -module -avoid-version -shared $(NO_UNDEFINED_ON_WINDOWS) \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms \ + $(NULL) +nbdkit_cow_filter_la_LIBADD = \ + $(top_builddir)/common/bitmap/libbitmap.la \ + $(top_builddir)/common/utils/libutils.la \ + $(NULL) + +if HAVE_POD + +man_MANS = nbdkit-cow-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-cow-filter.1: nbdkit-cow-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/cow/Makefile.in b/filters/cow/Makefile.in new file mode 100644 index 0000000..05ba9f8 --- /dev/null +++ b/filters/cow/Makefile.in @@ -0,0 +1,923 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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--man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/filters/cow/blk.c b/filters/cow/blk.c new file mode 100644 index 0000000..7fd7bc3 --- /dev/null +++ b/filters/cow/blk.c @@ -0,0 +1,274 @@ +/* nbdkit + * Copyright (C) 2018-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* Notes on the design and implementation of this filter: + * + * The filter works by creating a large, sparse temporary file, the + * same size as the underlying device. Being sparse, initially this + * takes up no space. + * + * We confine all pread/pwrite operations to the filesystem block + * size. The blk_* functions below only work on whole filesystem + * block boundaries. A smaller-than-block-size pwrite will turn into + * a read-modify-write of a whole block. We also assume that the + * plugin returns the same immutable data for each pread call we make, + * and optimize on this basis. + * + * A block bitmap is maintained in memory recording if each block in + * the temporary file is "allocated" (1) or "hole" (0). + * + * When reading a block we first check the bitmap to see if that file + * block is allocated or a hole. If allocated, we return it from the + * temporary file. If a hole, we issue a pread to the underlying + * plugin. + * + * When writing a block we unconditionally write the data to the + * temporary file, setting the bit in the bitmap. + * + * We allow the client to request FUA, and emulate it with a flush + * (arguably, since the write overlay is temporary, we could ignore + * FUA altogether). + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#ifdef HAVE_ALLOCA_H +#include +#endif + +#include + +#include "bitmap.h" +#include "utils.h" + +#include "blk.h" + +#ifndef HAVE_FDATASYNC +#define fdatasync fsync +#endif + +/* The temporary overlay. */ +static int fd = -1; + +/* Bitmap. Bit = 1 => allocated, 0 => hole. */ +static struct bitmap bm; + +int +blk_init (void) +{ + const char *tmpdir; + size_t len; + char *template; + + bitmap_init (&bm, BLKSIZE, 1 /* bits per block */); + + tmpdir = getenv ("TMPDIR"); + if (!tmpdir) + tmpdir = LARGE_TMPDIR; + + nbdkit_debug ("cow: temporary directory for overlay: %s", tmpdir); + + len = strlen (tmpdir) + 8; + template = alloca (len); + snprintf (template, len, "%s/XXXXXX", tmpdir); + +#ifdef HAVE_MKOSTEMP + fd = mkostemp (template, O_CLOEXEC); +#else + /* Not atomic, but this is only invoked during .load, so the race + * won't affect any plugin actions trying to fork + */ + fd = mkstemp (template); + if (fd >= 0) { + fd = set_cloexec (fd); + if (fd < 0) { + int e = errno; + unlink (template); + errno = e; + } + } +#endif + if (fd == -1) { + nbdkit_error ("mkostemp: %s: %m", tmpdir); + return -1; + } + + unlink (template); + return 0; +} + +void +blk_free (void) +{ + if (fd >= 0) + close (fd); + + bitmap_free (&bm); +} + +/* Allocate or resize the overlay file and bitmap. */ +int +blk_set_size (uint64_t new_size) +{ + if (bitmap_resize (&bm, new_size) == -1) + return -1; + + if (ftruncate (fd, new_size) == -1) { + nbdkit_error ("ftruncate: %m"); + return -1; + } + + return 0; +} + +/* Return true if the block is allocated. Consults the bitmap. */ +static bool +blk_is_allocated (uint64_t blknum) +{ + return bitmap_get_blk (&bm, blknum, false); +} + +/* Mark a block as allocated. */ +static void +blk_set_allocated (uint64_t blknum) +{ + bitmap_set_blk (&bm, blknum, true); +} + +/* These are the block operations. They always read or write a single + * whole block of size ‘blksize’. + */ +int +blk_read (struct nbdkit_next_ops *next_ops, void *nxdata, + uint64_t blknum, uint8_t *block, int *err) +{ + off_t offset = blknum * BLKSIZE; + bool allocated = blk_is_allocated (blknum); + + nbdkit_debug ("cow: blk_read block %" PRIu64 " (offset %" PRIu64 ") is %s", + blknum, (uint64_t) offset, + !allocated ? "a hole" : "allocated"); + + if (!allocated) /* Read underlying plugin. */ + return next_ops->pread (nxdata, block, BLKSIZE, offset, 0, err); + else { /* Read overlay. */ + if (pread (fd, block, BLKSIZE, offset) == -1) { + *err = errno; + nbdkit_error ("pread: %m"); + return -1; + } + return 0; + } +} + +int +blk_cache (struct nbdkit_next_ops *next_ops, void *nxdata, + uint64_t blknum, uint8_t *block, enum cache_mode mode, int *err) +{ + off_t offset = blknum * BLKSIZE; + bool allocated = blk_is_allocated (blknum); + + nbdkit_debug ("cow: blk_cache block %" PRIu64 " (offset %" PRIu64 ") is %s", + blknum, (uint64_t) offset, + !allocated ? "a hole" : "allocated"); + + if (allocated) { +#if HAVE_POSIX_FADVISE + int r = posix_fadvise (fd, offset, BLKSIZE, POSIX_FADV_WILLNEED); + if (r) { + errno = r; + nbdkit_error ("posix_fadvise: %m"); + return -1; + } +#endif + return 0; + } + if (mode == BLK_CACHE_IGNORE) + return 0; + if (mode == BLK_CACHE_PASSTHROUGH) + return next_ops->cache (nxdata, BLKSIZE, offset, 0, err); + if (next_ops->pread (nxdata, block, BLKSIZE, offset, 0, err) == -1) + return -1; + if (mode == BLK_CACHE_COW) { + if (pwrite (fd, block, BLKSIZE, offset) == -1) { + *err = errno; + nbdkit_error ("pwrite: %m"); + return -1; + } + blk_set_allocated (blknum); + } + return 0; +} + +int +blk_write (uint64_t blknum, const uint8_t *block, int *err) +{ + off_t offset = blknum * BLKSIZE; + + nbdkit_debug ("cow: blk_write block %" PRIu64 " (offset %" PRIu64 ")", + blknum, (uint64_t) offset); + + if (pwrite (fd, block, BLKSIZE, offset) == -1) { + *err = errno; + nbdkit_error ("pwrite: %m"); + return -1; + } + blk_set_allocated (blknum); + + return 0; +} + +int +blk_flush (void) +{ + /* I think we don't care about file metadata for this temporary + * file, so only flush the data. + */ + if (fdatasync (fd) == -1) { + nbdkit_error ("fdatasync: %m"); + return -1; + } + + return 0; +} diff --git a/filters/cow/blk.h b/filters/cow/blk.h new file mode 100644 index 0000000..a50b6ca --- /dev/null +++ b/filters/cow/blk.h @@ -0,0 +1,83 @@ +/* nbdkit + * Copyright (C) 2018-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_BLK_H +#define NBDKIT_BLK_H + +/* Size of a block in the overlay. A 4K block size means that we need + * 32 MB of memory to store the bitmap for a 1 TB underlying image. + */ +#define BLKSIZE 4096 + +/* Initialize the overlay and bitmap. */ +extern int blk_init (void); + +/* Close the overlay, free the bitmap. */ +extern void blk_free (void); + +/*---------------------------------------------------------------------- + * ** NOTE ** + * + * An exclusive lock must be held when you call any function below + * this line. + */ + +/* Allocate or resize the overlay and bitmap. */ +extern int blk_set_size (uint64_t new_size); + +/* Read a single block from the overlay or plugin. */ +extern int blk_read (struct nbdkit_next_ops *next_ops, void *nxdata, + uint64_t blknum, uint8_t *block, int *err) + __attribute__((__nonnull__ (1, 4, 5))); + +/* Cache mode for blocks not already in overlay */ +enum cache_mode { + BLK_CACHE_IGNORE, /* Do nothing */ + BLK_CACHE_PASSTHROUGH, /* Make cache request to plugin */ + BLK_CACHE_READ, /* Make ignored read request to plugin */ + BLK_CACHE_COW, /* Make read request to plugin, and write to overlay */ +}; + +/* Cache a single block from the plugin. */ +extern int blk_cache (struct nbdkit_next_ops *next_ops, void *nxdata, + uint64_t blknum, uint8_t *block, enum cache_mode, + int *err) + __attribute__((__nonnull__ (1, 4, 6))); + +/* Write a single block. */ +extern int blk_write (uint64_t blknum, const uint8_t *block, int *err) + __attribute__((__nonnull__ (2, 3))); + +/* Flush the overlay to disk. */ +extern int blk_flush (void); + +#endif /* NBDKIT_BLK_H */ diff --git a/filters/cow/cow.c b/filters/cow/cow.c new file mode 100644 index 0000000..51ca64a --- /dev/null +++ b/filters/cow/cow.c @@ -0,0 +1,531 @@ +/* nbdkit + * Copyright (C) 2018-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include + +#include + +#include + +#include "cleanup.h" + +#include "blk.h" +#include "isaligned.h" +#include "minmax.h" +#include "rounding.h" + +/* In order to handle parallel requests safely, this lock must be held + * when calling any blk_* functions. + */ +static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER; + +bool cow_on_cache; + +static void +cow_load (void) +{ + if (blk_init () == -1) + exit (EXIT_FAILURE); +} + +static void +cow_unload (void) +{ + blk_free (); +} + +static int +cow_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + if (strcmp (key, "cow-on-cache") == 0) { + int r; + + r = nbdkit_parse_bool (value); + if (r == -1) + return -1; + cow_on_cache = r; + return 0; + } + else { + return next (nxdata, key, value); + } +} + +#define cow_config_help \ + "cow-on-cache= Set to true to treat client cache requests as writes.\n" + +static void * +cow_open (nbdkit_next_open *next, void *nxdata, + int readonly, const char *exportname, int is_tls) +{ + /* Always pass readonly=1 to the underlying plugin. */ + if (next (nxdata, 1, exportname) == -1) + return NULL; + + return NBDKIT_HANDLE_NOT_NEEDED; +} + +/* Get the file size; round it down to overlay granularity before + * setting overlay size. + */ +static int64_t +cow_get_size (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + int64_t size; + int r; + + size = next_ops->get_size (nxdata); + if (size == -1) + return -1; + + nbdkit_debug ("cow: underlying file size: %" PRIi64, size); + size = ROUND_DOWN (size, BLKSIZE); + + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + r = blk_set_size (size); + if (r == -1) + return -1; + + return size; +} + +/* Force an early call to cow_get_size, consequently truncating the + * overlay to the correct size. + */ +static int +cow_prepare (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, int readonly) +{ + int64_t r; + + r = cow_get_size (next_ops, nxdata, handle); + return r >= 0 ? 0 : -1; +} + +/* Whatever the underlying plugin can or can't do, we can write, we + * cannot trim or detect extents, and we can flush. + */ +static int +cow_can_write (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle) +{ + return 1; +} + +static int +cow_can_trim (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle) +{ + return 0; +} + +static int +cow_can_extents (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle) +{ + return 0; +} + +static int +cow_can_flush (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle) +{ + return 1; +} + +static int +cow_can_fua (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle) +{ + return NBDKIT_FUA_EMULATE; +} + +static int +cow_can_cache (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle) +{ + /* Cache next_ops->can_cache now, so later calls to next_ops->cache + * don't fail, even though we override the answer here. + */ + int r = next_ops->can_cache (nxdata); + if (r == -1) + return -1; + return NBDKIT_FUA_NATIVE; +} + +/* Override the plugin's .can_fast_zero, because our .zero is not fast */ +static int +cow_can_fast_zero (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + /* It is better to advertise support even when we always reject fast + * zero attempts. + */ + return 1; +} + +static int cow_flush (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle, uint32_t flags, int *err); + +/* Read data. */ +static int +cow_pread (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + CLEANUP_FREE uint8_t *block = NULL; + uint64_t blknum, blkoffs; + int r; + + if (!IS_ALIGNED (count | offset, BLKSIZE)) { + block = malloc (BLKSIZE); + if (block == NULL) { + *err = errno; + nbdkit_error ("malloc: %m"); + return -1; + } + } + + blknum = offset / BLKSIZE; /* block number */ + blkoffs = offset % BLKSIZE; /* offset within the block */ + + /* Unaligned head */ + if (blkoffs) { + uint64_t n = MIN (BLKSIZE - blkoffs, count); + + assert (block); + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + r = blk_read (next_ops, nxdata, blknum, block, err); + if (r == -1) + return -1; + + memcpy (buf, &block[blkoffs], n); + + buf += n; + count -= n; + offset += n; + blknum++; + } + + /* Aligned body */ + /* XXX This breaks up large read requests into smaller ones, which + * is a problem for plugins which have a large, fixed per-request + * overhead (hello, curl). We should try to keep large requests + * together as much as possible, but that requires us to be much + * smarter here. + */ + while (count >= BLKSIZE) { + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + r = blk_read (next_ops, nxdata, blknum, buf, err); + if (r == -1) + return -1; + + buf += BLKSIZE; + count -= BLKSIZE; + offset += BLKSIZE; + blknum++; + } + + /* Unaligned tail */ + if (count) { + assert (block); + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + r = blk_read (next_ops, nxdata, blknum, block, err); + if (r == -1) + return -1; + + memcpy (buf, block, count); + } + + return 0; +} + +/* Write data. */ +static int +cow_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, const void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + CLEANUP_FREE uint8_t *block = NULL; + uint64_t blknum, blkoffs; + int r; + + if (!IS_ALIGNED (count | offset, BLKSIZE)) { + block = malloc (BLKSIZE); + if (block == NULL) { + *err = errno; + nbdkit_error ("malloc: %m"); + return -1; + } + } + + blknum = offset / BLKSIZE; /* block number */ + blkoffs = offset % BLKSIZE; /* offset within the block */ + + /* Unaligned head */ + if (blkoffs) { + uint64_t n = MIN (BLKSIZE - blkoffs, count); + + /* Do a read-modify-write operation on the current block. + * Hold the lock over the whole operation. + */ + assert (block); + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + r = blk_read (next_ops, nxdata, blknum, block, err); + if (r != -1) { + memcpy (&block[blkoffs], buf, n); + r = blk_write (blknum, block, err); + } + if (r == -1) + return -1; + + buf += n; + count -= n; + offset += n; + blknum++; + } + + /* Aligned body */ + while (count >= BLKSIZE) { + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + r = blk_write (blknum, buf, err); + if (r == -1) + return -1; + + buf += BLKSIZE; + count -= BLKSIZE; + offset += BLKSIZE; + blknum++; + } + + /* Unaligned tail */ + if (count) { + assert (block); + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + r = blk_read (next_ops, nxdata, blknum, block, err); + if (r != -1) { + memcpy (block, buf, count); + r = blk_write (blknum, block, err); + } + if (r == -1) + return -1; + } + + if (flags & NBDKIT_FLAG_FUA) + return cow_flush (next_ops, nxdata, handle, 0, err); + return 0; +} + +/* Zero data. */ +static int +cow_zero (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, uint32_t flags, + int *err) +{ + CLEANUP_FREE uint8_t *block = NULL; + uint64_t blknum, blkoffs; + int r; + + /* We are purposefully avoiding next_ops->zero, so a zero request is + * never faster than plain writes. + */ + if (flags & NBDKIT_FLAG_FAST_ZERO) { + *err = ENOTSUP; + return -1; + } + + block = malloc (BLKSIZE); + if (block == NULL) { + *err = errno; + nbdkit_error ("malloc: %m"); + return -1; + } + + blknum = offset / BLKSIZE; /* block number */ + blkoffs = offset % BLKSIZE; /* offset within the block */ + + /* Unaligned head */ + if (blkoffs) { + uint64_t n = MIN (BLKSIZE - blkoffs, count); + + /* Do a read-modify-write operation on the current block. + * Hold the lock over the whole operation. + */ + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + r = blk_read (next_ops, nxdata, blknum, block, err); + if (r != -1) { + memset (&block[blkoffs], 0, n); + r = blk_write (blknum, block, err); + } + if (r == -1) + return -1; + + count -= n; + offset += n; + blknum++; + } + + /* Aligned body */ + if (count >= BLKSIZE) + memset (block, 0, BLKSIZE); + while (count >= BLKSIZE) { + /* XXX There is the possibility of optimizing this: since this loop is + * writing a whole, aligned block, we should use FALLOC_FL_ZERO_RANGE. + */ + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + r = blk_write (blknum, block, err); + if (r == -1) + return -1; + + count -= BLKSIZE; + offset += BLKSIZE; + blknum++; + } + + /* Unaligned tail */ + if (count) { + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + r = blk_read (next_ops, nxdata, blknum, block, err); + if (r != -1) { + memset (&block[count], 0, BLKSIZE - count); + r = blk_write (blknum, block, err); + } + if (r == -1) + return -1; + } + + if (flags & NBDKIT_FLAG_FUA) + return cow_flush (next_ops, nxdata, handle, 0, err); + return 0; +} + +static int +cow_flush (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle, + uint32_t flags, int *err) +{ + int r; + + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + r = blk_flush (); + if (r == -1) + *err = errno; + return r; +} + +static int +cow_cache (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + CLEANUP_FREE uint8_t *block = NULL; + uint64_t blknum, blkoffs; + int r; + uint64_t remaining = count; /* Rounding out could exceed 32 bits */ + enum cache_mode mode; + + switch (next_ops->can_cache (nxdata)) { + case NBDKIT_CACHE_NONE: + mode = BLK_CACHE_IGNORE; + break; + case NBDKIT_CACHE_EMULATE: + mode = BLK_CACHE_READ; + break; + case NBDKIT_CACHE_NATIVE: + mode = BLK_CACHE_PASSTHROUGH; + break; + default: + assert (false); /* Guaranteed thanks to early caching */ + } + if (cow_on_cache) + mode = BLK_CACHE_COW; + + assert (!flags); + block = malloc (BLKSIZE); + if (block == NULL) { + *err = errno; + nbdkit_error ("malloc: %m"); + return -1; + } + + blknum = offset / BLKSIZE; /* block number */ + blkoffs = offset % BLKSIZE; /* offset within the block */ + + /* Unaligned head */ + remaining += blkoffs; + offset -= blkoffs; + + /* Unaligned tail */ + remaining = ROUND_UP (remaining, BLKSIZE); + + /* Aligned body */ + while (remaining) { + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + r = blk_cache (next_ops, nxdata, blknum, block, mode, err); + if (r == -1) + return -1; + + remaining -= BLKSIZE; + offset += BLKSIZE; + blknum++; + } + + return 0; +} + +static struct nbdkit_filter filter = { + .name = "cow", + .longname = "nbdkit copy-on-write (COW) filter", + .load = cow_load, + .unload = cow_unload, + .open = cow_open, + .config = cow_config, + .config_help = cow_config_help, + .prepare = cow_prepare, + .get_size = cow_get_size, + .can_write = cow_can_write, + .can_flush = cow_can_flush, + .can_trim = cow_can_trim, + .can_extents = cow_can_extents, + .can_fua = cow_can_fua, + .can_cache = cow_can_cache, + .can_fast_zero = cow_can_fast_zero, + .pread = cow_pread, + .pwrite = cow_pwrite, + .zero = cow_zero, + .flush = cow_flush, + .cache = cow_cache, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/cow/nbdkit-cow-filter.pod b/filters/cow/nbdkit-cow-filter.pod new file mode 100644 index 0000000..4d5ae85 --- /dev/null +++ b/filters/cow/nbdkit-cow-filter.pod @@ -0,0 +1,156 @@ +=head1 NAME + +nbdkit-cow-filter - nbdkit copy-on-write (COW) filter + +=head1 SYNOPSIS + + nbdkit --filter=cow plugin [plugin-args...] + +=head1 DESCRIPTION + +C is a filter that makes a temporary writable copy +on top of a read-only plugin. It can be used to enable writes for +plugins which only implement read-only access. Note that: + +=over 4 + +=item * + +B + +=item * + +All connections to the nbdkit instance see the same view of the disk. + +This is different from L where each connection sees its +own copy-on-write overlay and simply disconnecting the client throws +that away. It also allows us to create diffs, see below. + +=item * + +The plugin is opened read-only (as if the I<-r> flag was passed), but +you should B pass the I<-r> flag to nbdkit. + +=item * + +Note that the use of this filter rounds the image size down to a +multiple of the caching granularity (4096), to ease the +implementation. If you need to round the image size up instead to +access the last few bytes, combine this filter with +L. + +=back + +Limitations of the filter include: + +=over 4 + +=item * + +The underlying file/device must not be resized. + +=item * + +The underlying plugin must behave “normally”, meaning that it must +serve the same data to each client. + +=back + +=head1 PARAMETERS + +=over 4 + +=item B + +Treat a client cache request as a shortcut for copying unmodified data +from the plugin to the overlay, rather than the default of passing +cache requests on to the plugin. This parameter defaults to false +(which leaves the overlay as small as possible), but setting it can be +useful for converting cache commands into a form of copy-on-read +behavior, in addition to the filter's normal copy-on-write semantics. + +=back + +=head1 EXAMPLES + +Serve the file F, allowing writes, but do not save any +changes into the file: + + nbdkit --filter=cow file disk.img + +L only supports read access, but you can provide +temporary write access by doing (although this does B save +changes to the file): + + nbdkit --filter=cow --filter=xz file disk.xz + +=head1 CREATING A DIFF WITH QEMU-IMG + +Although nbdkit-cow-filter itself cannot save the differences, it is +possible to do this using an obscure feature of L. +B. + +Run nbdkit: + + nbdkit --filter=cow file disk.img + +and then connect with a client and make whatever changes you need. +At the end, disconnect the client. + +Run these C commands to construct a qcow2 file containing +the differences: + + qemu-img create -f qcow2 -b nbd:localhost diff.qcow2 + qemu-img rebase -b disk.img diff.qcow2 + +F now contains the differences between the base +(F) and the changes stored in nbdkit-cow-filter. C +can now be killed. + +=head1 ENVIRONMENT VARIABLES + +=over 4 + +=item C + +The copy-on-write changes are stored in a temporary file located in +F by default. You can override this location by setting the +C environment variable before starting nbdkit. + +=back + +=head1 FILES + +=over 4 + +=item F<$filterdir/nbdkit-cow-filter.so> + +The filter. + +Use C to find the location of C<$filterdir>. + +=back + +=head1 VERSION + +C first appeared in nbdkit 1.2. + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Eric Blake + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2018 Red Hat Inc. diff --git a/filters/ddrescue/Makefile.am b/filters/ddrescue/Makefile.am new file mode 100644 index 0000000..79bbad9 --- /dev/null +++ b/filters/ddrescue/Makefile.am @@ -0,0 +1,73 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = \ + nbdkit-ddrescue-filter.pod \ + $(NULL) + +filter_LTLIBRARIES = nbdkit-ddrescue-filter.la + +nbdkit_ddrescue_filter_la_SOURCES = \ + ddrescue.c \ + $(top_srcdir)/include/nbdkit-filter.h \ + $(NULL) + +nbdkit_ddrescue_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include \ + -I$(top_srcdir)/common/utils \ + $(NULL) +nbdkit_ddrescue_filter_la_CFLAGS = \ + $(WARNINGS_CFLAGS) \ + $(GNUTLS_CFLAGS) \ + $(NULL) +nbdkit_ddrescue_filter_la_LDFLAGS = \ + -module -avoid-version -shared $(NO_UNDEFINED_ON_WINDOWS) \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms \ + $(NULL) +nbdkit_ddrescue_filter_la_LIBADD = \ + $(top_builddir)/common/utils/libutils.la \ + $(GNUTLS_LIBS) \ + $(NULL) + +if HAVE_POD + +man_MANS = nbdkit-ddrescue-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-ddrescue-filter.1: nbdkit-ddrescue-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/ddrescue/Makefile.in b/filters/ddrescue/Makefile.in new file mode 100644 index 0000000..f22ad15 --- /dev/null +++ b/filters/ddrescue/Makefile.in @@ -0,0 +1,918 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/filters/ddrescue/ddrescue.c b/filters/ddrescue/ddrescue.c new file mode 100644 index 0000000..a60f07e --- /dev/null +++ b/filters/ddrescue/ddrescue.c @@ -0,0 +1,210 @@ +/* nbdkit + * Copyright (C) 2018-2020 François Revol. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include + +#include + +#include + +#include "cleanup.h" +#include "vector.h" + +struct range { + int64_t start; + int64_t end; + int64_t size; + char status; +}; +DEFINE_VECTOR_TYPE(ranges, struct range); + +struct mapfile { + int ranges_count; + ranges ranges; +}; + +static struct mapfile map = { 0, empty_vector }; + +static int +parse_mapfile (const char *filename) +{ + FILE *fp = NULL; + CLEANUP_FREE char *line = NULL; + size_t linelen = 0; + ssize_t len; + int ret = -1; + int status_seen = 0; + + fp = fopen (filename, "r"); + if (!fp) { + nbdkit_error ("%s: ddrescue: fopen: %m", filename); + goto out; + } + + while ((len = getline (&line, &linelen, fp)) != -1) { + int64_t offset, length; + char status; + + if (len > 0 && line[len-1] == '\n') { + line[len-1] = '\0'; + len--; + } + + if (len > 0 && line[0] == '#') + continue; + + if (len > 0 && !status_seen) { + /* status line, ignore it for now */ + status_seen = 1; + nbdkit_debug ("%s: skipping status line: '%s'", filename, line); + continue; + } + + if (sscanf (line, "%" SCNi64 "\t%" SCNi64 "\t%c", + &offset, &length, &status) == 3) { + if (offset < 0) { + nbdkit_error ("block offset must not be negative"); + return -1; + } + if (length < 0) { + nbdkit_error ("block length must not be negative"); + return -1; + } + if (status == '+') { + struct range new_range = { .start = offset, .end = offset + length - 1, + .size = length, .status = status }; + + if (ranges_append (&map.ranges, new_range) == -1) { + nbdkit_error ("%s: ddrescue: realloc: %m", filename); + goto out; + } + } + + nbdkit_debug ("%s: range: 0x%" PRIx64 " 0x%" PRIx64 " '%c'", + filename, offset, length, status); + } + } + + ret = 0; + + out: + if (fp) + fclose (fp); + return ret; +} + +/* On unload, free the mapfile data. */ +static void +ddrescue_unload (void) +{ + free (map.ranges.ptr); +} + +static int +ddrescue_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + if (strcmp (key, "ddrescue-mapfile") == 0) { + if (parse_mapfile (value) == -1) + return -1; + return 0; + } + + else + return next (nxdata, key, value); +} + +#define ddrescue_config_help \ + "ddrescue-mapfile=... Specify ddrescue mapfile to use" + +/* We need this because otherwise the layer below can_write is called + * and that might return true (eg. if the plugin has a pwrite method + * at all), resulting in writes being passed through to the layer + * below. + */ +static int +ddrescue_can_write (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + return 0; +} + +static int +ddrescue_can_cache (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + return 0; +} + +/* Read data. */ +static int +ddrescue_pread (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + size_t i; + + for (i = 0; i < map.ranges.size; i++) { + if (map.ranges.ptr[i].status != '+') + continue; + if (offset >= map.ranges.ptr[i].start && offset <= map.ranges.ptr[i].end) { + if (offset + count - 1 <= map.ranges.ptr[i].end) { + /* entirely contained within this range */ + return next_ops->pread (nxdata, buf, count, offset, flags, err); + } + } + } + /* read was not fully covered */ + nbdkit_debug ("ddrescue: pread: range: 0x%" PRIx64 " 0x%" PRIx32 + " failing with EIO", offset, count); + *err = EIO; + return -1; +} + +static struct nbdkit_filter filter = { + .name = "ddrescue", + .longname = "nbdkit ddrescue mapfile filter", + .unload = ddrescue_unload, + .config = ddrescue_config, + .config_help = ddrescue_config_help, + .can_write = ddrescue_can_write, + .can_cache = ddrescue_can_cache, + .pread = ddrescue_pread, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/ddrescue/nbdkit-ddrescue-filter.pod b/filters/ddrescue/nbdkit-ddrescue-filter.pod new file mode 100644 index 0000000..601d58f --- /dev/null +++ b/filters/ddrescue/nbdkit-ddrescue-filter.pod @@ -0,0 +1,76 @@ +=head1 NAME + +nbdkit-ddrescue-filter - nbdkit filter for serving from ddrescue dump + +=head1 SYNOPSIS + + nbdkit --filter=ddrescue plugin [plugin-args...] + ddrescue-mapfile=file.map + + nbdkit --filter=ddrescue file file=file.img ddrescue-mapfile=file.map + [plugin-args...] + +=head1 DESCRIPTION + +C is a filter for L which overlays +bad blocks according to a GNU L mapfile. This is mainly useful +for testing disk images recovered with ddrescue, to detect which files +or filesystem structures are impacted, or attempting fsck on them. + +Note that the current implementation is read-only. + +=head1 EXAMPLES + +=over 4 + +=item Expose a rescued disk image with detected bad sectors: + + nbdkit --filter=ddrescue file file=disk.img ddrescue-mapfile=disk.map + +The above command serves the disk image disk.img and maps the bad +sectors listed in disk.img so that read attempts on them do not return +a valid block full of zeroes. + +=back + +=head1 PARAMETERS + +The C parameter must point to a valid GNU ddrescue +mapfile. + +=head1 DATA FORMAT + +The file pointed to by the C parameter should +conform to the format of a GNU L mapfile. + +=head1 FILES + +=over 4 + +=item F<$filterdir/nbdkit-ddrescue-filter.so> + +The filter. + +Use C to find the location of C<$filterdir>. + +=back + +=head1 VERSION + +C first appeared in nbdkit 1.22. + +=head1 SEE ALSO + +L, +L, +L, +L, +L. + +=head1 AUTHORS + +François Revol + +=head1 COPYRIGHT + +Copyright (C) 2020 François Revol diff --git a/filters/delay/Makefile.am b/filters/delay/Makefile.am new file mode 100644 index 0000000..470c606 --- /dev/null +++ b/filters/delay/Makefile.am @@ -0,0 +1,62 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-delay-filter.pod + +filter_LTLIBRARIES = nbdkit-delay-filter.la + +nbdkit_delay_filter_la_SOURCES = \ + delay.c \ + $(top_srcdir)/include/nbdkit-filter.h \ + $(NULL) + +nbdkit_delay_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + $(NULL) +nbdkit_delay_filter_la_CFLAGS = $(WARNINGS_CFLAGS) +nbdkit_delay_filter_la_LDFLAGS = \ + -module -avoid-version -shared $(NO_UNDEFINED_ON_WINDOWS) \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms \ + $(NULL) + +if HAVE_POD + +man_MANS = nbdkit-delay-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-delay-filter.1: nbdkit-delay-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/delay/Makefile.in b/filters/delay/Makefile.in new file mode 100644 index 0000000..326f164 --- /dev/null +++ b/filters/delay/Makefile.in @@ -0,0 +1,899 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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install-man install-man1 install-pdf install-pdf-am install-ps \ + install-ps-am install-strip installcheck installcheck-am \ + installdirs maintainer-clean maintainer-clean-generic \ + mostlyclean mostlyclean-compile mostlyclean-generic \ + mostlyclean-libtool pdf pdf-am ps ps-am tags tags-am uninstall \ + uninstall-am uninstall-filterLTLIBRARIES uninstall-man \ + uninstall-man1 + +.PRECIOUS: Makefile + + +@HAVE_POD_TRUE@nbdkit-delay-filter.1: nbdkit-delay-filter.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/filters/delay/delay.c b/filters/delay/delay.c new file mode 100644 index 0000000..f440e5a --- /dev/null +++ b/filters/delay/delay.c @@ -0,0 +1,305 @@ +/* nbdkit + * Copyright (C) 2018-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include + +#include + +static int delay_read_ms = 0; /* read delay (milliseconds) */ +static int delay_write_ms = 0; /* write delay (milliseconds) */ +static int delay_zero_ms = 0; /* zero delay (milliseconds) */ +static int delay_trim_ms = 0; /* trim delay (milliseconds) */ +static int delay_extents_ms = 0;/* extents delay (milliseconds) */ +static int delay_cache_ms = 0; /* cache delay (milliseconds) */ +static int delay_fast_zero = 1; /* whether delaying zero includes fast zero */ + +static int +parse_delay (const char *key, const char *value) +{ + size_t len = strlen (value); + int r; + + if (len > 2 && strcmp (&value[len-2], "ms") == 0) { + if (sscanf (value, "%d", &r) == 1 && r >= 0) + return r; + else { + nbdkit_error ("cannot parse %s in milliseconds parameter: %s", + key, value); + return -1; + } + } + else { + if (sscanf (value, "%d", &r) == 1 && r >= 0) { + if (r * 1000LL > INT_MAX) { + nbdkit_error ("seconds parameter %s is too large: %s", + key, value); + return -1; + } + return r * 1000; + } + else { + nbdkit_error ("cannot parse %s in seconds parameter: %s", + key, value); + return -1; + } + } +} + +static int +delay (int ms, int *err) +{ + if (ms > 0 && nbdkit_nanosleep (ms / 1000, (ms % 1000) * 1000000) == -1) { + *err = errno; + return -1; + } + return 0; +} + +static int +read_delay (int *err) +{ + return delay (delay_read_ms, err); +} + +static int +write_delay (int *err) +{ + return delay (delay_write_ms, err); +} + +static int +zero_delay (int *err) +{ + return delay (delay_zero_ms, err); +} + +static int +trim_delay (int *err) +{ + return delay (delay_trim_ms, err); +} + +static int +extents_delay (int *err) +{ + return delay (delay_extents_ms, err); +} + +static int +cache_delay (int *err) +{ + return delay (delay_cache_ms, err); +} + +/* Called for each key=value passed on the command line. */ +static int +delay_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + if (strcmp (key, "rdelay") == 0 || + strcmp (key, "delay-read") == 0 || + strcmp (key, "delay-reads") == 0) { + delay_read_ms = parse_delay (key, value); + if (delay_read_ms == -1) + return -1; + return 0; + } + else if (strcmp (key, "wdelay") == 0) { + delay_write_ms = parse_delay (key, value); + if (delay_write_ms == -1) + return -1; + /* Historically wdelay set all write-related delays. */ + delay_zero_ms = delay_trim_ms = delay_write_ms; + return 0; + } + else if (strcmp (key, "delay-write") == 0 || + strcmp (key, "delay-writes") == 0) { + delay_write_ms = parse_delay (key, value); + if (delay_write_ms == -1) + return -1; + return 0; + } + else if (strcmp (key, "delay-zero") == 0 || + strcmp (key, "delay-zeroes") == 0) { + delay_zero_ms = parse_delay (key, value); + if (delay_zero_ms == -1) + return -1; + return 0; + } + else if (strcmp (key, "delay-trim") == 0 || + strcmp (key, "delay-trims") == 0 || + strcmp (key, "delay-discard") == 0 || + strcmp (key, "delay-discards") == 0) { + delay_trim_ms = parse_delay (key, value); + if (delay_trim_ms == -1) + return -1; + return 0; + } + else if (strcmp (key, "delay-extent") == 0 || + strcmp (key, "delay-extents") == 0) { + delay_extents_ms = parse_delay (key, value); + if (delay_extents_ms == -1) + return -1; + return 0; + } + else if (strcmp (key, "delay-cache") == 0) { + delay_cache_ms = parse_delay (key, value); + if (delay_cache_ms == -1) + return -1; + return 0; + } + else if (strcmp (key, "delay-fast-zero") == 0) { + delay_fast_zero = nbdkit_parse_bool (value); + if (delay_fast_zero < 0) + return -1; + return 0; + } + else + return next (nxdata, key, value); +} + +#define delay_config_help \ + "rdelay=[ms] Read delay in seconds/milliseconds.\n" \ + "delay-read=[ms] Read delay in seconds/milliseconds.\n" \ + "delay-write=[ms] Write delay in seconds/milliseconds.\n" \ + "delay-zero=[ms] Zero delay in seconds/milliseconds.\n" \ + "delay-trim=[ms] Trim delay in seconds/milliseconds.\n" \ + "delay-extents=[ms] Extents delay in seconds/milliseconds.\n" \ + "delay-cache=[ms] Cache delay in seconds/milliseconds.\n" \ + "wdelay=[ms] Write, zero and trim delay in secs/msecs.\n" \ + "delay-fast-zero= Delay fast zero requests (default true).\n" + +/* Override the plugin's .can_fast_zero if needed */ +static int +delay_can_fast_zero (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + /* Advertise if we are handling fast zero requests locally */ + if (delay_zero_ms && !delay_fast_zero) + return 1; + return next_ops->can_fast_zero (nxdata); +} + +/* Read data. */ +static int +delay_pread (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + if (read_delay (err) == -1) + return -1; + return next_ops->pread (nxdata, buf, count, offset, flags, err); +} + +/* Write data. */ +static int +delay_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, + const void *buf, uint32_t count, uint64_t offset, uint32_t flags, + int *err) +{ + if (write_delay (err) == -1) + return -1; + return next_ops->pwrite (nxdata, buf, count, offset, flags, err); +} + +/* Zero data. */ +static int +delay_zero (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, uint32_t flags, + int *err) +{ + if ((flags & NBDKIT_FLAG_FAST_ZERO) && delay_zero_ms && !delay_fast_zero) { + *err = ENOTSUP; + return -1; + } + if (zero_delay (err) == -1) + return -1; + return next_ops->zero (nxdata, count, offset, flags, err); +} + +/* Trim data. */ +static int +delay_trim (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + if (trim_delay (err) == -1) + return -1; + return next_ops->trim (nxdata, count, offset, flags, err); +} + +/* Extents. */ +static int +delay_extents (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, uint32_t flags, + struct nbdkit_extents *extents, int *err) +{ + if (extents_delay (err) == -1) + return -1; + return next_ops->extents (nxdata, count, offset, flags, extents, err); +} + +/* Cache. */ +static int +delay_cache (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, uint32_t flags, + int *err) +{ + if (cache_delay (err) == -1) + return -1; + return next_ops->cache (nxdata, count, offset, flags, err); +} + +static struct nbdkit_filter filter = { + .name = "delay", + .longname = "nbdkit delay filter", + .config = delay_config, + .config_help = delay_config_help, + .can_fast_zero = delay_can_fast_zero, + .pread = delay_pread, + .pwrite = delay_pwrite, + .zero = delay_zero, + .trim = delay_trim, + .extents = delay_extents, + .cache = delay_cache, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/delay/nbdkit-delay-filter.pod b/filters/delay/nbdkit-delay-filter.pod new file mode 100644 index 0000000..d6961a9 --- /dev/null +++ b/filters/delay/nbdkit-delay-filter.pod @@ -0,0 +1,143 @@ +=head1 NAME + +nbdkit-delay-filter - nbdkit delay filter + +=head1 SYNOPSIS + + nbdkit --filter=delay plugin rdelay=SECS wdelay=SECS [plugin-args...] + + nbdkit --filter=delay plugin rdelay=NNms wdelay=NNms [plugin-args...] + + nbdkit --filter=delay plugin [plugin-args ...] + delay-read=(SECS|NNms) delay-write=(SECS|NNms) + delay-zero=(SECS|NNms) delay-trim=(SECS|NNms) + delay-extents=(SECS|NNms) delay-cache=(SECS|NNms) + delay-fast-zero=BOOL + +=head1 DESCRIPTION + +C is a filter that delays read and write requests +by some seconds or milliseconds. This is used to simulate a slow or +remote server, or to test certain kinds of race conditions in Linux. +To limit server bandwidth use L instead. + +=head1 EXAMPLES + +Delays reads and writes by 100ms: + + nbdkit --filter=delay file disk.img rdelay=100ms wdelay=100ms + +Delay only zero operations by 1 second, nothing else is affected: + + nbdkit --filter=delay file disk.img delay-zero=1 + +=head1 PARAMETERS + +=over 4 + +=item BSECS + +=item BNNB + +=item BSECS + +=item BNNB + +Delay read operations by C seconds or C milliseconds. + +The two forms C and C work identically. + +=item BSECS + +=item BNNB + +Delay write operations by C seconds or C milliseconds. + +=item BSECS + +=item BNNB + +(nbdkit E 1.10) + +Delay zero operations by C seconds or C milliseconds. See +also B. + +=item BSECS + +=item BNNB + +(nbdkit E 1.10) + +Delay trim/discard operations by C seconds or C milliseconds. + +=item BSECS + +=item BNNB + +(nbdkit E 1.12) + +Delay block status (extents) operations by C seconds or C +milliseconds. + +=item BSECS + +=item BNNB + +(nbdkit E 1.14) + +Delay advisory cache operations by C seconds or C +milliseconds. + +=item BSECS + +=item BNNB + +Delay write, zero and trim operations by C seconds or C +milliseconds. + +=item BBOOL + +(nbdkit E 1.16) + +The NBD specification documents an extension called fast zero, in +which the client may request that a server should reply with +C as soon as possible if the zero operation offers no real +speedup over a corresponding write. By default, this parameter is +true, and fast zero requests are serviced by the plugin after the same +delay as any other zero request; but setting this parameter to false +instantly fails a fast zero response without waiting for or consulting +the plugin. + +=back + +=head1 FILES + +=over 4 + +=item F<$filterdir/nbdkit-delay-filter.so> + +The filter. + +Use C to find the location of C<$filterdir>. + +=back + +=head1 VERSION + +C first appeared in nbdkit 1.2, based on earlier +C and C options in L. + +=head1 SEE ALSO + +L, +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2018 Red Hat Inc. diff --git a/filters/error/Makefile.am b/filters/error/Makefile.am new file mode 100644 index 0000000..78e2a7b --- /dev/null +++ b/filters/error/Makefile.am @@ -0,0 +1,67 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-error-filter.pod + +filter_LTLIBRARIES = nbdkit-error-filter.la + +nbdkit_error_filter_la_SOURCES = \ + error.c \ + $(top_srcdir)/include/nbdkit-filter.h \ + $(NULL) + +nbdkit_error_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include \ + -I$(top_srcdir)/common/utils \ + $(NULL) +nbdkit_error_filter_la_CFLAGS = $(WARNINGS_CFLAGS) +nbdkit_error_filter_la_LDFLAGS = \ + -module -avoid-version -shared $(NO_UNDEFINED_ON_WINDOWS) \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms \ + $(NULL) +nbdkit_error_filter_la_LIBADD = \ + $(top_builddir)/common/utils/libutils.la \ + $(NULL) + +if HAVE_POD + +man_MANS = nbdkit-error-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-error-filter.1: nbdkit-error-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/error/Makefile.in b/filters/error/Makefile.in new file mode 100644 index 0000000..850d01a --- /dev/null +++ b/filters/error/Makefile.in @@ -0,0 +1,907 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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0000000..45e434d --- /dev/null +++ b/filters/error/error.c @@ -0,0 +1,390 @@ +/* nbdkit + * Copyright (C) 2018-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include + +#include "cleanup.h" +#include "random.h" + +struct error_settings { + int error; /* errno, eg. EIO */ + double rate; /* rate, 0.0 = never, 1.0 = always */ + char *file; /* error file, NULL = no file */ +}; + +#define ERROR_DEFAULT { .error = EIO, .rate = 0, .file = NULL } + +/* Settings for each type of request, read from the command line. */ +static struct error_settings pread_settings = ERROR_DEFAULT; +static struct error_settings pwrite_settings = ERROR_DEFAULT; +static struct error_settings trim_settings = ERROR_DEFAULT; +static struct error_settings zero_settings = ERROR_DEFAULT; +static struct error_settings extents_settings = ERROR_DEFAULT; +static struct error_settings cache_settings = ERROR_DEFAULT; + +/* Random state. + * This must only be accessed when holding the lock (except for load). + */ +static struct random_state random_state; +static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER; + +static void +error_load (void) +{ + xsrandom (time (NULL), &random_state); +} + +static void +error_unload (void) +{ + free (pread_settings.file); + free (pwrite_settings.file); + free (trim_settings.file); + free (zero_settings.file); + free (extents_settings.file); + free (cache_settings.file); +} + +static const struct { const char *name; int error; } errors[] = { + { "EPERM", EPERM }, + { "EIO", EIO }, + { "ENOMEM", ENOMEM }, + { "EINVAL", EINVAL }, + { "ENOSPC", ENOSPC }, + { "ESHUTDOWN", ESHUTDOWN }, + { NULL } +}; + +static const char * +error_as_string (int error) +{ + size_t i; + + for (i = 0; errors[i].name != NULL; ++i) { + if (errors[i].error == error) + return errors[i].name; + } + abort (); +} + +static int +parse_error (const char *key, const char *value, int *retp) +{ + size_t i; + + for (i = 0; errors[i].name != NULL; ++i) { + if (strcmp (value, errors[i].name) == 0) { + *retp = errors[i].error; + return 0; + } + } + + nbdkit_error ("%s: unknown error name '%s'", key, value); + return -1; +} + +static int +parse_error_rate (const char *key, const char *value, double *retp) +{ + double d; + int n; + + if (sscanf (value, "%lg%n", &d, &n) == 1) { + if (strcmp (&value[n], "%") == 0) /* percentage */ + d /= 100.0; + else if (strcmp (&value[n], "") == 0) /* probability */ + ; + else + goto bad_parse; + } + else { + bad_parse: + nbdkit_error ("%s: could not parse rate '%s'", key, value); + return -1; + } + if (d < 0 || d > 1) { + nbdkit_error ("%s: rate out of range: '%s' parsed as %g", key, value, d); + return -1; + } + *retp = d; + return 0; +} + +/* Called for each key=value passed on the command line. */ +static int +error_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + int i; + double d; + + if (strcmp (key, "error") == 0) { + if (parse_error (key, value, &i) == -1) + return -1; + pread_settings.error = pwrite_settings.error = + trim_settings.error = zero_settings.error = + extents_settings.error = cache_settings.error = i; + return 0; + } + else if (strcmp (key, "error-pread") == 0) + return parse_error (key, value, &pread_settings.error); + else if (strcmp (key, "error-pwrite") == 0) + return parse_error (key, value, &pwrite_settings.error); + else if (strcmp (key, "error-trim") == 0) + return parse_error (key, value, &trim_settings.error); + else if (strcmp (key, "error-zero") == 0) + return parse_error (key, value, &zero_settings.error); + else if (strcmp (key, "error-extents") == 0) + return parse_error (key, value, &extents_settings.error); + else if (strcmp (key, "error-cache") == 0) + return parse_error (key, value, &cache_settings.error); + + else if (strcmp (key, "error-rate") == 0) { + if (parse_error_rate (key, value, &d) == -1) + return -1; + pread_settings.rate = pwrite_settings.rate = + trim_settings.rate = zero_settings.rate = + extents_settings.rate = cache_settings.rate = d; + return 0; + } + else if (strcmp (key, "error-pread-rate") == 0) + return parse_error_rate (key, value, &pread_settings.rate); + else if (strcmp (key, "error-pwrite-rate") == 0) + return parse_error_rate (key, value, &pwrite_settings.rate); + else if (strcmp (key, "error-trim-rate") == 0) + return parse_error_rate (key, value, &trim_settings.rate); + else if (strcmp (key, "error-zero-rate") == 0) + return parse_error_rate (key, value, &zero_settings.rate); + else if (strcmp (key, "error-extents-rate") == 0) + return parse_error_rate (key, value, &extents_settings.rate); + else if (strcmp (key, "error-cache-rate") == 0) + return parse_error_rate (key, value, &cache_settings.rate); + + /* NB: We are using nbdkit_absolute_path here because the trigger + * file probably doesn't exist yet. + */ + else if (strcmp (key, "error-file") == 0) { + free (pread_settings.file); + pread_settings.file = nbdkit_absolute_path (value); + free (pwrite_settings.file); + pwrite_settings.file = nbdkit_absolute_path (value); + free (trim_settings.file); + trim_settings.file = nbdkit_absolute_path (value); + free (zero_settings.file); + zero_settings.file = nbdkit_absolute_path (value); + free (extents_settings.file); + extents_settings.file = nbdkit_absolute_path (value); + free (cache_settings.file); + cache_settings.file = nbdkit_absolute_path (value); + return 0; + } + else if (strcmp (key, "error-pread-file") == 0) { + free (pread_settings.file); + pread_settings.file = nbdkit_absolute_path (value); + return 0; + } + else if (strcmp (key, "error-pwrite-file") == 0) { + free (pwrite_settings.file); + pwrite_settings.file = nbdkit_absolute_path (value); + return 0; + } + else if (strcmp (key, "error-trim-file") == 0) { + free (trim_settings.file); + trim_settings.file = nbdkit_absolute_path (value); + return 0; + } + else if (strcmp (key, "error-zero-file") == 0) { + free (zero_settings.file); + zero_settings.file = nbdkit_absolute_path (value); + return 0; + } + else if (strcmp (key, "error-extents-file") == 0) { + free (extents_settings.file); + extents_settings.file = nbdkit_absolute_path (value); + return 0; + } + else if (strcmp (key, "error-cache-file") == 0) { + free (cache_settings.file); + cache_settings.file = nbdkit_absolute_path (value); + return 0; + } + + else + return next (nxdata, key, value); +} + +#define error_config_help \ + "error=EPERM|EIO|ENOMEM|EINVAL|ENOSPC|ESHUTDOWN\n" \ + " The error indication to return.\n" \ + "error-rate=0%..100%|0..1 Rate of errors to generate.\n" \ + "error-file=TRIGGER Set trigger filename.\n" \ + "error-pread*, error-pwrite*, error-trim*, error-zero*, error-extents*\n" \ + " Apply settings only to read/write/etc" + +/* This function injects a random error. */ +static bool +random_error (const struct error_settings *error_settings, + const char *fn, int *err) +{ + uint64_t rand; + + if (error_settings->rate <= 0) /* 0% = never inject */ + return false; + + /* Does the trigger file exist? */ + if (error_settings->file != NULL) { + if (access (error_settings->file, F_OK) == -1) + return false; + } + + if (error_settings->rate >= 1) /* 100% = always inject */ + goto inject; + + /* To avoid the question if (double)1.0 * UINT64_MAX is + * representable in a 64 bit integer, and because we don't need all + * this precision anyway, let's work in 32 bits. + */ + { + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + rand = xrandom (&random_state) & UINT32_MAX; + } + if (rand >= error_settings->rate * UINT32_MAX) + return false; + + inject: + *err = error_settings->error; + nbdkit_error ("injecting %s error into %s", error_as_string (*err), fn); + return true; +} + +/* Read data. */ +static int +error_pread (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + if (random_error (&pread_settings, "pread", err)) + return -1; + + return next_ops->pread (nxdata, buf, count, offset, flags, err); +} + +/* Write data. */ +static int +error_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, + const void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + if (random_error (&pwrite_settings, "pwrite", err)) + return -1; + + return next_ops->pwrite (nxdata, buf, count, offset, flags, err); +} + +/* Trim data. */ +static int +error_trim (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + if (random_error (&trim_settings, "trim", err)) + return -1; + + return next_ops->trim (nxdata, count, offset, flags, err); +} + +/* Zero data. */ +static int +error_zero (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + if (random_error (&zero_settings, "zero", err)) + return -1; + + return next_ops->zero (nxdata, count, offset, flags, err); +} + +/* Extents. */ +static int +error_extents (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, + uint32_t flags, struct nbdkit_extents *extents, int *err) +{ + if (random_error (&extents_settings, "extents", err)) + return -1; + + return next_ops->extents (nxdata, count, offset, flags, extents, err); +} + +/* Extents. */ +static int +error_cache (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + if (random_error (&cache_settings, "cache", err)) + return -1; + + return next_ops->cache (nxdata, count, offset, flags, err); +} + +static struct nbdkit_filter filter = { + .name = "error", + .longname = "nbdkit error filter", + .load = error_load, + .unload = error_unload, + .config = error_config, + .config_help = error_config_help, + .pread = error_pread, + .pwrite = error_pwrite, + .trim = error_trim, + .zero = error_zero, + .extents = error_extents, + .cache = error_cache, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/error/nbdkit-error-filter.pod b/filters/error/nbdkit-error-filter.pod new file mode 100644 index 0000000..2d2cf8b --- /dev/null +++ b/filters/error/nbdkit-error-filter.pod @@ -0,0 +1,172 @@ +=head1 NAME + +nbdkit-error-filter - inject errors for testing clients + +=head1 SYNOPSIS + + nbdkit --filter=error PLUGIN + [error=EPERM|EIO|ENOMEM|EINVAL|ENOSPC|ESHUTDOWN] + [error-rate=10%|0.1] + [error-file=/tmp/inject] + [error-pread=...] [error-pread-rate=...] [error-pread-file=...] + [error-pwrite=...] [error-pwrite-rate=...] [error-pwrite-file=...] + [error-trim=...] [error-trim-rate=...] [error-trim-file=...] + [error-zero=...] [error-zero-rate=...] [error-zero-file=...] + [error-extents=...] [error-extents-rate=...] [error-extents-file=...] + [error-cache=...] [error-cache-rate=...] [error-cache-file=...] + +=head1 DESCRIPTION + +C is an nbdkit filter that injects random errors +into replies from the server. This is used for testing that NBD +clients can handle errors. + +All parameters are optional, but you should usually specify one of the +C or C parameters, +B. + +=head1 EXAMPLES + +Inject a low rate of errors randomly into the connection: + + nbdkit --filter=error file disk.img error-rate=1% + +Reading, trimming, cache and extents (block status) requests will be +successful, but all writes and zeroing will return "No space left on +device": + + nbdkit --filter=error file disk.img \ + error=ENOSPC \ + error-pwrite-rate=100% \ + error-zero-rate=100% + +To make all connections fail hard 60 seconds after the server is +started, use: + + rm -f /tmp/inject + nbdkit --filter=error file disk.img \ + error-rate=100% \ + error-file=/tmp/inject + sleep 60; touch /tmp/inject + +=head1 PARAMETERS + +=over 4 + +=item B + +When a random error is injected, you can select which one from the +range of possible NBD errors (the NBD protocol only supports a limited +range of error codes). + +This parameter is optional and the default is C +("Input/output error"). + +=item BNB<%> + +=item B0..1 + +The rate of injected errors per NBD request. This can be expressed as +either a percentage between C<0%> and C<100%> or as a probability +between C<0> and C<1>. If C<0%> or C<0> is used then no errors are +ever injected, and if C<100%> or C<1> is used then all requests return +errors. + +This parameter is optional and the default is C<0%>. +B + +=item BFILENAME + +Errors will only be injected when F exists. (Note you must +also specify the C). + +You can use this for fine-grained control over when to inject errors, +for example if you want to trigger an error at an exact moment during +a test, arrange for this file to be created at the appropriate time. +Or conversely to test error recovery in a client, create the file +initially, and then delete it to check the client can recover. + +This parameter is optional. + +=item B, B, B. + +Same as C, C and C but only apply the +settings to NBD pread requests. + +=item B, B, B. + +Same as C, C and C but only apply the +settings to NBD pwrite requests. + +=item B, B, B. + +Same as C, C and C but only apply the +settings to NBD trim requests. + +=item B, B, B. + +Same as C, C and C but only apply the +settings to NBD zero requests. + +=item B, B, B. + +(nbdkit E 1.12) + +Same as C, C and C but only apply the +settings to NBD block status requests to read extents. + +=item B, B, B. + +(nbdkit E 1.14) + +Same as C, C and C but only apply the +settings to NBD cache requests. + +=back + +=head1 NOTES + +=head2 Peculiar debug output + +If you are looking at the debugging output (using C) +then you may see peculiar "errors" appearing when using this filter, +for example: + + nbdkit: file.9: debug: error: pread count=1024 offset=0 flags=0x0 + +In fact these are not errors, nbdkit core is simply printing the name +of the filter which happens to be C<"error">. When this filter +injects an error you will see something like: + + nbdkit: file.4: error: injecting ENOSPC error into pwrite + +=head1 FILES + +=over 4 + +=item F<$filterdir/nbdkit-error-filter.so> + +The filter. + +Use C to find the location of C<$filterdir>. + +=back + +=head1 VERSION + +C first appeared in nbdkit 1.6. + +=head1 SEE ALSO + +L, +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2018 Red Hat Inc. diff --git a/filters/exitlast/Makefile.am b/filters/exitlast/Makefile.am new file mode 100644 index 0000000..1760395 --- /dev/null +++ b/filters/exitlast/Makefile.am @@ -0,0 +1,60 @@ +# nbdkit +# Copyright (C) 2019-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-exitlast-filter.pod + +filter_LTLIBRARIES = nbdkit-exitlast-filter.la + +nbdkit_exitlast_filter_la_SOURCES = \ + exitlast.c \ + $(top_srcdir)/include/nbdkit-filter.h \ + $(NULL) + +nbdkit_exitlast_filter_la_CPPFLAGS = -I$(top_srcdir)/include +nbdkit_exitlast_filter_la_CFLAGS = $(WARNINGS_CFLAGS) +nbdkit_exitlast_filter_la_LDFLAGS = \ + -module -avoid-version -shared $(NO_UNDEFINED_ON_WINDOWS) \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms \ + $(NULL) + +if HAVE_POD + +man_MANS = nbdkit-exitlast-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-exitlast-filter.1: nbdkit-exitlast-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/exitlast/Makefile.in b/filters/exitlast/Makefile.in new file mode 100644 index 0000000..c4588c8 --- /dev/null +++ b/filters/exitlast/Makefile.in @@ -0,0 +1,898 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2019-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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file mode 100644 index 0000000..4c879cc --- /dev/null +++ b/filters/exitlast/exitlast.c @@ -0,0 +1,80 @@ +/* nbdkit + * Copyright (C) 2019-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include + +#include + +#ifdef HAVE_STDATOMIC_H +#include +#else +/* Some old platforms lack atomic types, but 32 bit ints are usually + * "atomic enough". + */ +#define _Atomic /**/ +#endif + +/* Counts client connections. When this drops to zero we exit. */ +static _Atomic unsigned connections; + +static void * +exitlast_open (nbdkit_next_open *next, nbdkit_backend *nxdata, + int readonly, const char *exportname, int is_tls) +{ + if (next (nxdata, readonly, exportname) == -1) + return NULL; + + connections++; + + return NBDKIT_HANDLE_NOT_NEEDED; +} + +static void +exitlast_close (void *handle) +{ + if (--connections == 0) { + nbdkit_debug ("exitlast: exiting on last client connection"); + nbdkit_shutdown (); + } +} + +static struct nbdkit_filter filter = { + .name = "exitlast", + .longname = "nbdkit exitlast filter", + .open = exitlast_open, + .close = exitlast_close, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/exitlast/nbdkit-exitlast-filter.pod b/filters/exitlast/nbdkit-exitlast-filter.pod new file mode 100644 index 0000000..207ad4c --- /dev/null +++ b/filters/exitlast/nbdkit-exitlast-filter.pod @@ -0,0 +1,59 @@ +=head1 NAME + +nbdkit-exitlast-filter - exit on last client connection + +=head1 SYNOPSIS + + nbdkit --filter=exitlast PLUGIN + +=head1 DESCRIPTION + +C is an nbdkit filter that causes nbdkit to +exit when there are no more client connections. Note that it doesn't +exit before the first client connection. + +One use for this is in combination with a superserver, to save +resources when nbdkit is not in use (see L). +Another use is to ensure nbdkit exits after the client has finished +(but see also nbdkit-captive(1) for other ways to do this). + +=head1 PARAMETERS + +There are no parameters specific to nbdkit-exitlast-filter. Any +parameters are passed through to and processed by the underlying +plugin in the normal way. + +=head1 FILES + +=over 4 + +=item F<$filterdir/nbdkit-exitlast-filter.so> + +The filter. + +Use C to find the location of C<$filterdir>. + +=back + +=head1 VERSION + +C first appeared in nbdkit 1.20. + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2020 Red Hat Inc. diff --git a/filters/ext2/Makefile.am b/filters/ext2/Makefile.am new file mode 100644 index 0000000..b1fdcb8 --- /dev/null +++ b/filters/ext2/Makefile.am @@ -0,0 +1,75 @@ +# nbdkit +# Copyright (C) 2017-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-ext2-filter.pod + +if HAVE_EXT2 + +filter_LTLIBRARIES = nbdkit-ext2-filter.la + +nbdkit_ext2_filter_la_SOURCES = \ + ext2.c \ + io.c \ + io.h \ + $(top_srcdir)/include/nbdkit-filter.h \ + $(NULL) + +nbdkit_ext2_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/utils \ + $(NULL) +nbdkit_ext2_filter_la_CFLAGS = \ + $(WARNINGS_CFLAGS) \ + $(EXT2FS_CFLAGS) $(COM_ERR_CFLAGS) \ + $(NULL) +nbdkit_ext2_filter_la_LIBADD = \ + $(EXT2FS_LIBS) $(COM_ERR_LIBS) \ + $(top_builddir)/common/utils/libutils.la \ + $(NULL) +nbdkit_ext2_filter_la_LDFLAGS = \ + -module -avoid-version -shared $(NO_UNDEFINED_ON_WINDOWS) \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms \ + $(NULL) + +if HAVE_POD + +man_MANS = nbdkit-ext2-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-ext2-filter.1: nbdkit-ext2-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD +endif diff --git a/filters/ext2/Makefile.in b/filters/ext2/Makefile.in new file mode 100644 index 0000000..1c19227 --- /dev/null +++ b/filters/ext2/Makefile.in @@ -0,0 +1,930 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2017-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include + +/* Inlining is broken in the ext2fs header file. Disable it by + * defining the following: + */ +#define NO_INLINE_FUNCS +#include + +#define NBDKIT_API_VERSION 2 + +#include + +#include "cleanup.h" +#include "io.h" + +/* Filename parameter, or NULL to honor export name. */ +static char *file; + +static void +ext2_load (void) +{ + initialize_ext2_error_table (); +} + +static void +ext2_unload (void) +{ + free (file); +} + +static int +ext2_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + if (strcmp (key, "ext2file") == 0) { + if (file != NULL) { + nbdkit_error ("ext2file parameter specified more than once"); + return -1; + } + file = strdup (value); + if (file == NULL) { + nbdkit_error ("strdup: %m"); + return -1; + } + return 0; + } + else + return next (nxdata, key, value); +} + +static int +ext2_config_complete (nbdkit_next_config_complete *next, void *nxdata) +{ + if (file == NULL) { + nbdkit_error ("you must supply ext2file= parameter " + "after the plugin name on the command line"); + return -1; + } + + if (strcmp (file, "exportname") == 0) { + free (file); + file = NULL; + } + else if (file[0] != '/') { + nbdkit_error ("the file parameter must refer to an absolute path"); + return -1; + } + + return next (nxdata); +} + +#define ext2_config_help \ + "ext2file= (required) Absolute name of file to serve inside the\n" \ + " disk image, or 'exportname' for client choice." + +/* The per-connection handle. */ +struct handle { + char *exportname; /* Client export name. */ + ext2_filsys fs; /* Filesystem handle. */ + ext2_ino_t ino; /* Inode of open file. */ + ext2_file_t file; /* File handle. */ + struct nbdkit_next next; /* "name" parameter to ext2fs_open. */ +}; + +/* Create the per-connection handle. */ +static void * +ext2_open (nbdkit_next_open *next, void *nxdata, + int readonly, const char *exportname, int is_tls) +{ + struct handle *h; + + h = calloc (1, sizeof *h); + if (h == NULL) { + nbdkit_error ("calloc: %m"); + return NULL; + } + + /* Save the client exportname in the handle. */ + h->exportname = strdup (exportname); + if (h->exportname == NULL) { + nbdkit_error ("strdup: %m"); + free (h); + return NULL; + } + + /* If file == NULL (ie. using exportname) then don't + * pass the client exportname to the lower layers. + */ + exportname = file ? exportname : ""; + + /* Request write access to the underlying plugin, for journal replay. */ + if (next (nxdata, 0, exportname) == -1) { + free (h->exportname); + free (h); + return NULL; + } + + return h; +} + +static int +ext2_prepare (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle, + int readonly) +{ + struct handle *h = handle; + errcode_t err; + int fs_flags; + int file_flags; + struct ext2_inode inode; + int64_t r; + CLEANUP_FREE char *name = NULL; + const char *fname = file ?: h->exportname; + CLEANUP_FREE char *absname = NULL; + + fs_flags = 0; +#ifdef EXT2_FLAG_64BITS + fs_flags |= EXT2_FLAG_64BITS; +#endif + r = next_ops->get_size (nxdata); + if (r == -1) + return -1; + r = next_ops->can_write (nxdata); + if (r == -1) + return -1; + if (r == 0) + readonly = 1; + + if (!readonly) + fs_flags |= EXT2_FLAG_RW; + + h->next.next_ops = next_ops; + h->next.nxdata = nxdata; + name = nbdkit_io_encode (&h->next); + if (!name) { + nbdkit_error ("nbdkit_io_encode: %m"); + return -1; + } + + if (fname[0] != '/') { + if (asprintf (&absname, "/%s", fname) < 0) { + nbdkit_error ("asprintf: %m"); + return -1; + } + fname = absname; + } + + err = ext2fs_open (name, fs_flags, 0, 0, nbdkit_io_manager, &h->fs); + if (err != 0) { + nbdkit_error ("open: %s", error_message (err)); + goto err0; + } + + if (strcmp (fname, "/") == 0) + /* probably gonna fail, but we'll catch it later */ + h->ino = EXT2_ROOT_INO; + else { + err = ext2fs_namei (h->fs, EXT2_ROOT_INO, EXT2_ROOT_INO, + &fname[1], &h->ino); + if (err != 0) { + nbdkit_error ("%s: namei: %s", fname, error_message (err)); + goto err1; + } + } + + /* Check that fname is a regular file. + * XXX This won't follow symlinks, we'd have to do that manually. + */ + err = ext2fs_read_inode (h->fs, h->ino, &inode); + if (err != 0) { + nbdkit_error ("%s: inode: %s", fname, error_message (err)); + goto err1; + } + if (!LINUX_S_ISREG (inode.i_mode)) { + nbdkit_error ("%s: must be a regular file in the disk image", fname); + goto err1; + } + + file_flags = 0; + if (!readonly) + file_flags |= EXT2_FILE_WRITE; + err = ext2fs_file_open2 (h->fs, h->ino, NULL, file_flags, &h->file); + if (err != 0) { + nbdkit_error ("%s: open: %s", fname, error_message (err)); + goto err1; + } + + return 0; + + err1: + ext2fs_close (h->fs); + h->fs = NULL; + err0: + return -1; +} + +/* Free up the per-connection handle. */ +static void +ext2_close (void *handle) +{ + struct handle *h = handle; + + if (h->fs) { + ext2fs_file_close (h->file); + ext2fs_close (h->fs); + } + free (h->exportname); + free (h); +} + +static int +ext2_can_fua (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle) +{ + return NBDKIT_FUA_NATIVE; +} + +static int +ext2_can_cache (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle) +{ + /* Let nbdkit call pread to populate the file system cache. */ + return NBDKIT_CACHE_EMULATE; +} + +/* It might be possible to relax this, but it's complicated. + * + * It's desirable for ‘nbdkit -r’ to behave the same way as + * ‘mount -o ro’. But we don't know the state of the readonly flag + * until ext2_open is called (because the NBD client can also request + * a readonly connection). So we could not set the "ro" flag if we + * opened the filesystem any earlier (eg in ext2_config). + * + * So out of necessity we have one ext2_filsys handle per connection, + * but if we allowed parallel work on those handles then we would get + * data corruption, so we need to serialize connections. + */ +static int ext2_thread_model (void) +{ + return NBDKIT_THREAD_MODEL_SERIALIZE_CONNECTIONS; +} + +/* Get the disk size. */ +static int64_t +ext2_get_size (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle) +{ + struct handle *h = handle; + errcode_t err; + uint64_t size; + + err = ext2fs_file_get_lsize (h->file, (__u64 *) &size); + if (err != 0) { + nbdkit_error ("%s: lsize: %s", file, error_message (err)); + return -1; + } + return (int64_t) size; +} + +/* Read data. */ +static int +ext2_pread (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *errp) +{ + struct handle *h = handle; + errcode_t err; + unsigned int got; + + while (count > 0) { + /* Although this function weirdly can return the new offset, + * examination of the code shows that it never returns anything + * different from what we set, so NULL out that parameter. + */ + err = ext2fs_file_llseek (h->file, offset, EXT2_SEEK_SET, NULL); + if (err != 0) { + nbdkit_error ("%s: llseek: %s", file, error_message (err)); + *errp = errno; + return -1; + } + + err = ext2fs_file_read (h->file, buf, (unsigned int) count, &got); + if (err != 0) { + nbdkit_error ("%s: read: %s", file, error_message (err)); + *errp = errno; + return -1; + } + + buf += got; + count -= got; + offset += got; + } + + return 0; +} + +/* Write data to the file. */ +static int +ext2_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, const void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *errp) +{ + struct handle *h = handle; + errcode_t err; + unsigned int written; + + while (count > 0) { + err = ext2fs_file_llseek (h->file, offset, EXT2_SEEK_SET, NULL); + if (err != 0) { + nbdkit_error ("%s: llseek: %s", file, error_message (err)); + *errp = errno; + return -1; + } + + err = ext2fs_file_write (h->file, buf, (unsigned int) count, &written); + if (err != 0) { + nbdkit_error ("%s: write: %s", file, error_message (err)); + *errp = errno; + return -1; + } + + buf += written; + count -= written; + offset += written; + } + + if ((flags & NBDKIT_FLAG_FUA) != 0) { + err = ext2fs_file_flush (h->file); + if (err != 0) { + nbdkit_error ("%s: flush: %s", file, error_message (err)); + *errp = errno; + return -1; + } + } + + return 0; +} + +static int +ext2_flush (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t flags, int *errp) +{ + struct handle *h = handle; + errcode_t err; + + err = ext2fs_file_flush (h->file); + if (err != 0) { + nbdkit_error ("%s: flush: %s", file, error_message (err)); + *errp = errno; + return -1; + } + + return 0; +} + +/* XXX It seems as if we should be able to support trim and zero, if + * we could work out how those are implemented in the ext2fs API which + * is very obscure. + */ + +static struct nbdkit_filter filter = { + .name = "ext2", + .longname = "nbdkit ext2 filter", + .load = ext2_load, + .unload = ext2_unload, + .config = ext2_config, + .config_complete = ext2_config_complete, + .config_help = ext2_config_help, + .thread_model = ext2_thread_model, + .open = ext2_open, + .prepare = ext2_prepare, + .close = ext2_close, + .can_fua = ext2_can_fua, + .can_cache = ext2_can_cache, + .get_size = ext2_get_size, + .pread = ext2_pread, + .pwrite = ext2_pwrite, + .flush = ext2_flush, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/ext2/io.c b/filters/ext2/io.c new file mode 100644 index 0000000..bab069f --- /dev/null +++ b/filters/ext2/io.c @@ -0,0 +1,476 @@ +/* nbdkit + * Copyright (C) 2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* Copies heavily from e2fsprogs lib/ext2fs/unix_io.c: */ + +/* + * io.c --- This is an nbdkit filter implementation of the I/O manager. + * + * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, + * 2002 by Theodore Ts'o. + * + * %Begin-Header% + * This file may be redistributed under the terms of the GNU Library + * General Public License, version 2. + * %End-Header% + */ + +#include + +#include +#include + +#include "io.h" + +/* + * For checking structure magic numbers... + */ + +#define EXT2_CHECK_MAGIC(struct, code) \ + if ((struct)->magic != (code)) return (code) + +struct io_private_data { + int magic; + struct nbdkit_next_ops *next_ops; + void *nxdata; + ext2_loff_t offset; + struct struct_io_stats io_stats; +}; + +static errcode_t +io_get_stats (io_channel channel, io_stats *stats) +{ + errcode_t retval = 0; + + struct io_private_data *data; + + EXT2_CHECK_MAGIC (channel, EXT2_ET_MAGIC_IO_CHANNEL); + data = (struct io_private_data *) channel->private_data; + EXT2_CHECK_MAGIC (data, EXT2_ET_MAGIC_NBDKIT_IO_CHANNEL); + + if (stats) + *stats = &data->io_stats; + + return retval; +} + +/* + * Here are the raw I/O functions + */ +static errcode_t +raw_read_blk (io_channel channel, + struct io_private_data *data, + unsigned long long block, + int count, void *bufv) +{ + errcode_t retval; + ssize_t size; + ext2_loff_t location; + int actual = 0; + unsigned char *buf = bufv; + + size = (count < 0) ? -count : (ext2_loff_t) count * channel->block_size; + data->io_stats.bytes_read += size; + location = ((ext2_loff_t) block * channel->block_size) + data->offset; + + /* TODO is 32-bit overflow ever likely to be a problem? */ + if (data->next_ops->pread (data->nxdata, buf, size, location, 0, &errno) == 0) + return 0; + + retval = errno; + if (channel->read_error) + retval = (channel->read_error)(channel, block, count, buf, + size, actual, retval); + return retval; +} + +static errcode_t +raw_write_blk (io_channel channel, + struct io_private_data *data, + unsigned long long block, + int count, const void *bufv) +{ + ssize_t size; + ext2_loff_t location; + int actual = 0; + errcode_t retval; + const unsigned char *buf = bufv; + + if (count == 1) + size = channel->block_size; + else { + if (count < 0) + size = -count; + else + size = (ext2_loff_t) count * channel->block_size; + } + data->io_stats.bytes_written += size; + + location = ((ext2_loff_t) block * channel->block_size) + data->offset; + + /* TODO is 32-bit overflow ever likely to be a problem? */ + if (data->next_ops->pwrite (data->nxdata, buf, size, location, 0, + &errno) == 0) + return 0; + + retval = errno; + if (channel->write_error) + retval = (channel->write_error)(channel, block, count, buf, + size, actual, retval); + return retval; +} + +char * +nbdkit_io_encode (const struct nbdkit_next *next) +{ + char *ret; + + if (asprintf (&ret, "nbdkit:%p:%p", next->next_ops, next->nxdata) < 0) + return NULL; + return ret; +} + +int +nbdkit_io_decode (const char *name, struct nbdkit_next *next) +{ + int n; + + if (sscanf (name, "nbdkit:%p:%p%n", &next->next_ops, &next->nxdata, + &n) != 2 || n != strlen (name)) + return -1; + return 0; +} + +static errcode_t +io_open (const char *name, int flags, + io_channel *channel) +{ + struct nbdkit_next next; + io_channel io = NULL; + struct io_private_data *data = NULL; + errcode_t retval; + + if (nbdkit_io_decode (name, &next) == -1) + return EXT2_ET_BAD_DEVICE_NAME; + + retval = ext2fs_get_mem (sizeof (struct struct_io_channel), &io); + if (retval) + goto cleanup; + memset (io, 0, sizeof (struct struct_io_channel)); + io->magic = EXT2_ET_MAGIC_IO_CHANNEL; + retval = ext2fs_get_mem (sizeof (struct io_private_data), &data); + if (retval) + goto cleanup; + + io->manager = nbdkit_io_manager; + retval = ext2fs_get_mem (strlen (name)+1, &io->name); + if (retval) + goto cleanup; + + strcpy (io->name, name); + io->private_data = data; + io->block_size = 1024; + io->read_error = 0; + io->write_error = 0; + io->refcount = 1; + + memset (data, 0, sizeof (struct io_private_data)); + data->magic = EXT2_ET_MAGIC_NBDKIT_IO_CHANNEL; + data->io_stats.num_fields = 2; + data->next_ops = next.next_ops; + data->nxdata = next.nxdata; + + /* Too bad NBD doesn't tell us if next_ops->trim guarantees read as zero. */ + /* if (next_ops-> XXX (...) + io->flags |= CHANNEL_FLAGS_DISCARD_ZEROES; */ + + if (flags & IO_FLAG_RW && next.next_ops->can_write (next.nxdata) != 1) { + retval = EPERM; + goto cleanup; + } + *channel = io; + return 0; + +cleanup: + if (data) + ext2fs_free_mem (&data); + if (io) { + if (io->name) { + ext2fs_free_mem (&io->name); + } + ext2fs_free_mem (&io); + } + return retval; +} + +static errcode_t +io_close (io_channel channel) +{ + struct io_private_data *data; + errcode_t retval = 0; + + EXT2_CHECK_MAGIC (channel, EXT2_ET_MAGIC_IO_CHANNEL); + data = (struct io_private_data *) channel->private_data; + EXT2_CHECK_MAGIC (data, EXT2_ET_MAGIC_NBDKIT_IO_CHANNEL); + + if (--channel->refcount > 0) + return 0; + + ext2fs_free_mem (&channel->private_data); + if (channel->name) + ext2fs_free_mem (&channel->name); + ext2fs_free_mem (&channel); + return retval; +} + +static errcode_t +io_set_blksize (io_channel channel, int blksize) +{ + struct io_private_data *data; + + EXT2_CHECK_MAGIC (channel, EXT2_ET_MAGIC_IO_CHANNEL); + data = (struct io_private_data *) channel->private_data; + EXT2_CHECK_MAGIC (data, EXT2_ET_MAGIC_NBDKIT_IO_CHANNEL); + + channel->block_size = blksize; + return 0; +} + +static errcode_t +io_read_blk64 (io_channel channel, unsigned long long block, + int count, void *buf) +{ + struct io_private_data *data; + + EXT2_CHECK_MAGIC (channel, EXT2_ET_MAGIC_IO_CHANNEL); + data = (struct io_private_data *) channel->private_data; + EXT2_CHECK_MAGIC (data, EXT2_ET_MAGIC_NBDKIT_IO_CHANNEL); + + return raw_read_blk (channel, data, block, count, buf); +} + +static errcode_t +io_read_blk (io_channel channel, unsigned long block, + int count, void *buf) +{ + return io_read_blk64 (channel, block, count, buf); +} + +static errcode_t +io_write_blk64 (io_channel channel, unsigned long long block, + int count, const void *buf) +{ + struct io_private_data *data; + + EXT2_CHECK_MAGIC (channel, EXT2_ET_MAGIC_IO_CHANNEL); + data = (struct io_private_data *) channel->private_data; + EXT2_CHECK_MAGIC (data, EXT2_ET_MAGIC_NBDKIT_IO_CHANNEL); + + return raw_write_blk (channel, data, block, count, buf); +} + +#ifdef HAVE_STRUCT_STRUCT_IO_MANAGER_CACHE_READAHEAD +static errcode_t +io_cache_readahead (io_channel channel, + unsigned long long block, + unsigned long long count) +{ + struct io_private_data *data; + + EXT2_CHECK_MAGIC (channel, EXT2_ET_MAGIC_IO_CHANNEL); + data = (struct io_private_data *)channel->private_data; + EXT2_CHECK_MAGIC (data, EXT2_ET_MAGIC_NBDKIT_IO_CHANNEL); + + if (data->next_ops->can_cache (data->nxdata) == 1) { + /* TODO is 32-bit overflow ever likely to be a problem? */ + if (data->next_ops->cache (data->nxdata, + (ext2_loff_t)count * channel->block_size, + ((ext2_loff_t)block * channel->block_size + + data->offset), + 0, &errno) == -1) + return errno; + return 0; + } + + return EXT2_ET_OP_NOT_SUPPORTED; +} +#endif + +static errcode_t +io_write_blk (io_channel channel, unsigned long block, + int count, const void *buf) +{ + return io_write_blk64 (channel, block, count, buf); +} + +static errcode_t +io_write_byte (io_channel channel, unsigned long offset, + int size, const void *buf) +{ + struct io_private_data *data; + + EXT2_CHECK_MAGIC (channel, EXT2_ET_MAGIC_IO_CHANNEL); + data = (struct io_private_data *) channel->private_data; + EXT2_CHECK_MAGIC (data, EXT2_ET_MAGIC_NBDKIT_IO_CHANNEL); + + if (data->next_ops->pwrite (data->nxdata, buf, size, + offset + data->offset, 0, &errno) == -1) + return errno; + + return 0; +} + +/* + * Flush data buffers to disk. + */ +static errcode_t +io_flush (io_channel channel) +{ + struct io_private_data *data; + errcode_t retval = 0; + + EXT2_CHECK_MAGIC (channel, EXT2_ET_MAGIC_IO_CHANNEL); + data = (struct io_private_data *) channel->private_data; + EXT2_CHECK_MAGIC (data, EXT2_ET_MAGIC_NBDKIT_IO_CHANNEL); + + if (data->next_ops->flush (data->nxdata, 0, &errno) == -1) + return errno; + return retval; +} + +static errcode_t +io_set_option (io_channel channel, const char *option, + const char *arg) +{ + struct io_private_data *data; + unsigned long long tmp; + char *end; + + EXT2_CHECK_MAGIC (channel, EXT2_ET_MAGIC_IO_CHANNEL); + data = (struct io_private_data *) channel->private_data; + EXT2_CHECK_MAGIC (data, EXT2_ET_MAGIC_NBDKIT_IO_CHANNEL); + + if (!strcmp (option, "offset")) { + if (!arg) + return EXT2_ET_INVALID_ARGUMENT; + + tmp = strtoull (arg, &end, 0); + if (*end) + return EXT2_ET_INVALID_ARGUMENT; + data->offset = tmp; + if (data->offset < 0) + return EXT2_ET_INVALID_ARGUMENT; + return 0; + } + return EXT2_ET_INVALID_ARGUMENT; +} + +static errcode_t +io_discard (io_channel channel, unsigned long long block, + unsigned long long count) +{ + struct io_private_data *data; + + EXT2_CHECK_MAGIC (channel, EXT2_ET_MAGIC_IO_CHANNEL); + data = (struct io_private_data *) channel->private_data; + EXT2_CHECK_MAGIC (data, EXT2_ET_MAGIC_NBDKIT_IO_CHANNEL); + + if (data->next_ops->can_trim (data->nxdata) == 1) { + /* TODO is 32-bit overflow ever likely to be a problem? */ + if (data->next_ops->trim (data->nxdata, + (off_t)(count) * channel->block_size, + ((off_t)(block) * channel->block_size + + data->offset), + 0, &errno) == 0) + return 0; + if (errno == EOPNOTSUPP) + goto unimplemented; + return errno; + } + +unimplemented: + return EXT2_ET_UNIMPLEMENTED; +} + +#ifdef HAVE_STRUCT_STRUCT_IO_MANAGER_ZEROOUT +static errcode_t +io_zeroout (io_channel channel, unsigned long long block, + unsigned long long count) +{ + struct io_private_data *data; + + EXT2_CHECK_MAGIC (channel, EXT2_ET_MAGIC_IO_CHANNEL); + data = (struct io_private_data *) channel->private_data; + EXT2_CHECK_MAGIC (data, EXT2_ET_MAGIC_NBDKIT_IO_CHANNEL); + + if (data->next_ops->can_zero (data->nxdata) == 1) { + /* TODO is 32-bit overflow ever likely to be a problem? */ + if (data->next_ops->zero (data->nxdata, + (off_t)(count) * channel->block_size, + ((off_t)(block) * channel->block_size + + data->offset), + NBDKIT_FLAG_MAY_TRIM, &errno) == 0) + return 0; + if (errno == EOPNOTSUPP) + goto unimplemented; + return errno; + } + +unimplemented: + return EXT2_ET_UNIMPLEMENTED; +} +#endif + +static struct struct_io_manager struct_nbdkit_manager = { + .magic = EXT2_ET_MAGIC_IO_MANAGER, + .name = "nbdkit I/O Manager", + .open = io_open, + .close = io_close, + .set_blksize = io_set_blksize, + .read_blk = io_read_blk, + .write_blk = io_write_blk, + .flush = io_flush, + .write_byte = io_write_byte, + .set_option = io_set_option, + .get_stats = io_get_stats, + .read_blk64 = io_read_blk64, + .write_blk64 = io_write_blk64, + .discard = io_discard, +#ifdef HAVE_STRUCT_STRUCT_IO_MANAGER_CACHE_READAHEAD + .cache_readahead = io_cache_readahead, +#endif +#ifdef HAVE_STRUCT_STRUCT_IO_MANAGER_ZEROOUT + .zeroout = io_zeroout, +#endif +}; + +io_manager nbdkit_io_manager = &struct_nbdkit_manager; diff --git a/filters/ext2/io.h b/filters/ext2/io.h new file mode 100644 index 0000000..da28681 --- /dev/null +++ b/filters/ext2/io.h @@ -0,0 +1,57 @@ +/* nbdkit + * Copyright (C) 2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_IO_H +#define NBDKIT_IO_H + +#include + +#include + +#define EXT2_ET_MAGIC_NBDKIT_IO_CHANNEL EXT2_ET_MAGIC_RESERVED_19 + +struct nbdkit_next { + struct nbdkit_next_ops *next_ops; + void *nxdata; +}; + +/* Utility functions for encoding nbdkit_next as a name usable by ext2fs */ +extern char *nbdkit_io_encode(const struct nbdkit_next *next) + __attribute__ ((__nonnull__ (1))); +extern int nbdkit_io_decode(const char *name, struct nbdkit_next *out) + __attribute__ ((__nonnull__ (1, 2))); + +/* Custom io manager that performs all ext2fs I/O on the next nbdkit layer */ +extern io_manager nbdkit_io_manager; + + +#endif /* NBDKIT_IO_H */ diff --git a/filters/ext2/nbdkit-ext2-filter.pod b/filters/ext2/nbdkit-ext2-filter.pod new file mode 100644 index 0000000..78d27f8 --- /dev/null +++ b/filters/ext2/nbdkit-ext2-filter.pod @@ -0,0 +1,105 @@ +=head1 NAME + +nbdkit-ext2-filter - read and write files inside ext2, ext3 or +ext4 filesystems + +=head1 SYNOPSIS + + nbdkit --filter=ext2 file fs.img ext2file=/disks/disk.raw + + nbdkit --filter=ext2 --filter=partition file fs.img \ + partition=1 ext2file=exportname + +=head1 DESCRIPTION + +C is an nbdkit filter which can read and +write files inside ext2, ext3 or ext4 filesystem images. + +Suppose you have an ext2/3/4 filesystem image called F +which contains inside itself a file called F +inside a directory on the filesystem called F, then +you could serve that file over NBD using: + + nbdkit --filter=ext2 file fs.img ext2file=/disks/disk.raw + +Commonly disk images are partitioned. In that case, you must select +just the partition of a disk image that contains an ext2 filesystem, +by using L: + + nbdkit --filter=ext2 --filter=partition file fs.img \ + partition=1 ext2file=/disks/disk.raw + +This filter can both read and write to the file inside the filesystem. +Use the I<-r> flag to force a readonly connection, but note this does +I guarantee that no writes are made to the filesystem. In +particular we may have to replay the ext3 journal in order to open a +filesystem even read-only. + +The filter does I support multiple parallel connections, because +there is a risk of corrupting the filesystem (as if the filesystem was +mounted by multiple machines). If a second connection is made to +nbdkit, it will block until the first connection closes. + +The filter is implemented using the ext2fs library which is provided +in most Linux distros, and also available as part of the e2fsprogs +project. + +L is a more generic plugin which can read +files from all kinds of different filesystem types, even if they are +partitioned or use logical volumes. It uses libguestfs instead of +e2fsprogs. + +=head1 PARAMETERS + +=over 4 + +=item BPATH + +The full path of the file within the filesystem that will be exposed +over NBD. The path must be absolute (starts with C). + +=item B + +The plugin will expose the path within the filesystem chosen by the +exportname passed by the client. Note that this mode allows the +client to deduce which files exist within the disk image, which may be +a security risk in some situations. + +=back + +=head1 FILES + +=over 4 + +=item F<$filterdir/nbdkit-ext2-filter.so> + +The filter. + +Use C to find the location of C<$filterdir>. + +=back + +=head1 VERSION + +C first appeared in nbdkit 1.18, +replacing C which was added in nbdkit 1.4 +and removed in nbdkit 1.22. + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Eric Blake + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2018-2020 Red Hat Inc. diff --git a/filters/extentlist/Makefile.am b/filters/extentlist/Makefile.am new file mode 100644 index 0000000..612fdfc --- /dev/null +++ b/filters/extentlist/Makefile.am @@ -0,0 +1,67 @@ +# nbdkit +# Copyright (C) 2019-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-extentlist-filter.pod + +filter_LTLIBRARIES = nbdkit-extentlist-filter.la + +nbdkit_extentlist_filter_la_SOURCES = \ + extentlist.c \ + $(top_srcdir)/include/nbdkit-filter.h \ + $(NULL) + +nbdkit_extentlist_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include \ + -I$(top_srcdir)/common/utils \ + $(NULL) +nbdkit_extentlist_filter_la_CFLAGS = $(WARNINGS_CFLAGS) +nbdkit_extentlist_filter_la_LDFLAGS = \ + -module -avoid-version -shared $(NO_UNDEFINED_ON_WINDOWS) \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms \ + $(NULL) +nbdkit_extentlist_filter_la_LIBADD = \ + $(top_builddir)/common/utils/libutils.la \ + $(NULL) + +if HAVE_POD + +man_MANS = nbdkit-extentlist-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-extentlist-filter.1: nbdkit-extentlist-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/extentlist/Makefile.in b/filters/extentlist/Makefile.in new file mode 100644 index 0000000..11f4c81 --- /dev/null +++ b/filters/extentlist/Makefile.in @@ -0,0 +1,909 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2019-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# nbdkit +# Copyright (C) 2013-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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$(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/filters/extentlist/extentlist.c b/filters/extentlist/extentlist.c new file mode 100644 index 0000000..dfb5e80 --- /dev/null +++ b/filters/extentlist/extentlist.c @@ -0,0 +1,330 @@ +/* nbdkit + * Copyright (C) 2019-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "cleanup.h" +#include "minmax.h" +#include "vector.h" + +#define HOLE (NBDKIT_EXTENT_HOLE|NBDKIT_EXTENT_ZERO) + +static const char *extentlist; + +/* List of extents. Once we've finally parsed them this will be + * ordered, non-overlapping and have no gaps. + */ +struct extent { + uint64_t offset, length; + uint32_t type; +}; +DEFINE_VECTOR_TYPE(extent_list, struct extent); +static extent_list extents; + +static void +extentlist_unload (void) +{ + free (extents.ptr); +} + +/* Called for each key=value passed on the command line. */ +static int +extentlist_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + if (strcmp (key, "extentlist") == 0) { + if (extentlist != NULL) { + nbdkit_error ("extentlist cannot appear twice"); + exit (EXIT_FAILURE); + } + extentlist = value; + return 0; + } + else + return next (nxdata, key, value); +} + +static int +extentlist_config_complete (nbdkit_next_config_complete *next, void *nxdata) +{ + if (extentlist == NULL) { + nbdkit_error ("you must supply the extentlist parameter " + "on the command line"); + return -1; + } + + return next (nxdata); +} + +static int +compare_offsets (const struct extent *e1, const struct extent *e2) +{ + if (e1->offset < e2->offset) + return -1; + else if (e1->offset > e2->offset) + return 1; + else + return 0; +} + +static int +compare_ranges (const void *ev1, const struct extent *e2) +{ + const struct extent *e1 = ev1; + + if (e1->offset < e2->offset) + return -1; + else if (e1->offset >= e2->offset + e2->length) + return 1; + else + return 0; +} + +/* Similar to parse_extents in plugins/sh/methods.c */ +static void +parse_extentlist (void) +{ + FILE *fp; + CLEANUP_FREE char *line = NULL; + size_t linelen = 0; + ssize_t len; + size_t i; + uint64_t end; + + assert (extentlist != NULL); + assert (extents.ptr == NULL); + assert (extents.size == 0); + + fp = fopen (extentlist, "r"); + if (!fp) { + nbdkit_error ("open: %s: %m", extentlist); + exit (EXIT_FAILURE); + } + + while ((len = getline (&line, &linelen, fp)) != -1) { + const char *delim = " \t"; + char *sp, *p; + int64_t offset, length; + uint32_t type; + + if (len > 0 && line[len-1] == '\n') { + line[len-1] = '\0'; + len--; + } + + if ((p = strtok_r (line, delim, &sp)) == NULL) { + parse_error: + nbdkit_error ("%s: cannot parse %s", extentlist, line); + exit (EXIT_FAILURE); + } + offset = nbdkit_parse_size (p); + if (offset == -1) + exit (EXIT_FAILURE); + + if ((p = strtok_r (NULL, delim, &sp)) == NULL) + goto parse_error; + length = nbdkit_parse_size (p); + if (length == -1) + exit (EXIT_FAILURE); + + /* Skip zero length extents. Makes the rest of the code easier. */ + if (length == 0) + continue; + + if ((p = strtok_r (NULL, delim, &sp)) == NULL) + /* empty type field means allocated data (0) */ + type = 0; + else if (sscanf (p, "%" SCNu32, &type) == 1) + ; + else { + type = 0; + if (strstr (p, "hole") != NULL) + type |= NBDKIT_EXTENT_HOLE; + if (strstr (p, "zero") != NULL) + type |= NBDKIT_EXTENT_ZERO; + } + + if (extent_list_append (&extents, + (struct extent){.offset = offset, .length=length, + .type=type}) == -1) { + nbdkit_error ("realloc: %m"); + exit (EXIT_FAILURE); + } + } + + fclose (fp); + + /* Sort the extents by offset. */ + extent_list_sort (&extents, compare_offsets); + + /* There must not be overlaps at this point. */ + end = 0; + for (i = 0; i < extents.size; ++i) { + if (extents.ptr[i].offset < end || + extents.ptr[i].offset + extents.ptr[i].length < extents.ptr[i].offset) { + nbdkit_error ("extents in the extent list are overlapping"); + exit (EXIT_FAILURE); + } + end = extents.ptr[i].offset + extents.ptr[i].length; + } + + /* If there's a gap at the beginning, insert a hole|zero extent. */ + if (extents.size == 0 || extents.ptr[0].offset > 0) { + end = extents.size == 0 ? UINT64_MAX : extents.ptr[0].offset; + if (extent_list_insert (&extents, + (struct extent){.offset = 0, .length = end, + .type = HOLE}, + 0) == -1) { + nbdkit_error ("realloc: %m"); + exit (EXIT_FAILURE); + } + } + + /* Now insert hole|zero extents after every extent where there + * is a gap between that extent and the next one. + */ + for (i = 0; i < extents.size-1; ++i) { + end = extents.ptr[i].offset + extents.ptr[i].length; + if (end < extents.ptr[i+1].offset) + if (extent_list_insert (&extents, + (struct extent){.offset = end, + .length = extents.ptr[i+1].offset - end, + .type = HOLE}, + i+1) == -1) { + nbdkit_error ("realloc: %m"); + exit (EXIT_FAILURE); + } + } + + /* If there's a gap at the end, insert a hole|zero extent. */ + end = extents.ptr[extents.size-1].offset + extents.ptr[extents.size-1].length; + if (end < UINT64_MAX) { + if (extent_list_append (&extents, + (struct extent){.offset = end, + .length = UINT64_MAX-end, + .type = HOLE}) == -1) { + nbdkit_error ("realloc: %m"); + exit (EXIT_FAILURE); + } + } + + /* Debug the final list. */ + for (i = 0; i < extents.size; ++i) { + nbdkit_debug ("extentlist: " + "extent[%zu] = %" PRIu64 "-%" PRIu64 " (length %" PRIu64 ")" + " type %" PRIu32, + i, extents.ptr[i].offset, + extents.ptr[i].offset + extents.ptr[i].length - 1, + extents.ptr[i].length, + extents.ptr[i].type); + } +} + +static int +extentlist_get_ready (nbdkit_next_get_ready *next, void *nxdata, + int thread_model) +{ + parse_extentlist (); + + return next (nxdata); +} + +static int +extentlist_can_extents (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + return 1; +} + +/* Use ‘-D extentlist.lookup=1’ to debug the function below. */ +int extentlist_debug_lookup = 0; + +/* Read extents. */ +static int +extentlist_extents (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, + uint32_t flags, + struct nbdkit_extents *ret_extents, + int *err) +{ + const struct extent eoffset = { .offset = offset }; + struct extent *p; + ssize_t i; + uint64_t end; + + /* Find the starting point in the extents list. */ + p = extent_list_search (&extents, &eoffset, compare_ranges); + assert (p != NULL); + i = p - extents.ptr; + + /* Add extents to the output. */ + while (count > 0) { + if (extentlist_debug_lookup) + nbdkit_debug ("extentlist lookup: " + "loop i=%zd count=%" PRIu32 " offset=%" PRIu64, + i, count, offset); + + end = extents.ptr[i].offset + extents.ptr[i].length; + if (nbdkit_add_extent (ret_extents, offset, end - offset, + extents.ptr[i].type) == -1) + return -1; + + count -= MIN (count, end-offset); + offset = end; + i++; + } + + return 0; +} + +static struct nbdkit_filter filter = { + .name = "extentlist", + .longname = "nbdkit extentlist filter", + .unload = extentlist_unload, + .config = extentlist_config, + .config_complete = extentlist_config_complete, + .get_ready = extentlist_get_ready, + .can_extents = extentlist_can_extents, + .extents = extentlist_extents, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/extentlist/nbdkit-extentlist-filter.pod b/filters/extentlist/nbdkit-extentlist-filter.pod new file mode 100644 index 0000000..96fe0e9 --- /dev/null +++ b/filters/extentlist/nbdkit-extentlist-filter.pod @@ -0,0 +1,99 @@ +=head1 NAME + +nbdkit-extentlist-filter - place extent list over a plugin + +=head1 SYNOPSIS + + nbdkit -r --filter=extentlist plugin extentlist=FILENAME + +=head1 DESCRIPTION + +C is an nbdkit filter that lets you place a +static list of extents on top of an existing plugin. Extents record +whether or not specific parts of the disk are allocated or sparse. + +You can use this with plugins which cannot get extent information +themselves, but where you can get this information from another +source. One place where it is useful is with L +because the sftp protocol does not support reading sparseness +information, but you may be able to get this information directly from +the source disk on the remote server using commands such as +L. A similar situation applies to +L. + +Note that the extent list is read-only. This filter does not monitor +writes and trims in order to update the extent list. What can happen +is that you would write to a “hole” in the disk, but would not be able +to read it back because the NBD client would still think that part of +the disk is a hole. So it is generally only safe to use this filter +in read-only mode (I<-r> option). + +=head1 FILE FORMAT + +The list of extents is specified in a text file. There is one extent +specified per line. Each line has the format: + + offset length type + +The C and C fields may use any format understood by +C. The optional C field may be an integer, +missing (same as 0), or a comma-separated list of the words C +and C. (The fields correspond to the inputs of the +C function, see L). + +An example of a valid set of extents covering a C<10M> disk where the +first megabyte only is allocated data: + + 0 1M + 1M 9M hole,zero + +Or you could omit the C extent since any gaps are assumed +to be holes with that type: + + 0 1M + +The extent list need not cover the whole disk, and does not need to be +in ascending order, but it must I contain overlapping extents. + +=head1 PARAMETERS + +=over 4 + +=item BFILENAME + +Specify the file containing the extent list, in the format described +in L above. + +=back + +=head1 FILES + +=over 4 + +=item F<$filterdir/nbdkit-extentlist-filter.so> + +The filter. + +Use C to find the location of C<$filterdir>. + +=back + +=head1 VERSION + +C first appeared in nbdkit 1.18. + +=head1 SEE ALSO + +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2020 Red Hat Inc. diff --git a/filters/filters.syms b/filters/filters.syms new file mode 100644 index 0000000..6d49e74 --- /dev/null +++ b/filters/filters.syms @@ -0,0 +1,46 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# This linker script controls the visibility of symbols in filters. +# Filters only need to export the "filter_init" function and debug +# flags. +# +# Use of this linker script is entirely optional. It's just for +# hygiene. + +{ + global: + filter_init; + *_debug_*; + + # Everything else is hidden. + local: *; +}; diff --git a/filters/fua/Makefile.am b/filters/fua/Makefile.am new file mode 100644 index 0000000..9fd056d --- /dev/null +++ b/filters/fua/Makefile.am @@ -0,0 +1,62 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-fua-filter.pod + +filter_LTLIBRARIES = nbdkit-fua-filter.la + +nbdkit_fua_filter_la_SOURCES = \ + fua.c \ + $(top_srcdir)/include/nbdkit-filter.h \ + $(NULL) + +nbdkit_fua_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + $(NULL) +nbdkit_fua_filter_la_CFLAGS = $(WARNINGS_CFLAGS) +nbdkit_fua_filter_la_LDFLAGS = \ + -module -avoid-version -shared $(NO_UNDEFINED_ON_WINDOWS) \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms \ + $(NULL) + +if HAVE_POD + +man_MANS = nbdkit-fua-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-fua-filter.1: nbdkit-fua-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/fua/Makefile.in b/filters/fua/Makefile.in new file mode 100644 index 0000000..19fec01 --- /dev/null +++ b/filters/fua/Makefile.in @@ -0,0 +1,899 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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install-strip installcheck installcheck-am \ + installdirs maintainer-clean maintainer-clean-generic \ + mostlyclean mostlyclean-compile mostlyclean-generic \ + mostlyclean-libtool pdf pdf-am ps ps-am tags tags-am uninstall \ + uninstall-am uninstall-filterLTLIBRARIES uninstall-man \ + uninstall-man1 + +.PRECIOUS: Makefile + + +@HAVE_POD_TRUE@nbdkit-fua-filter.1: nbdkit-fua-filter.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/filters/fua/fua.c b/filters/fua/fua.c new file mode 100644 index 0000000..229d83d --- /dev/null +++ b/filters/fua/fua.c @@ -0,0 +1,293 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include + +#include + +static enum FuaMode { + NONE, + EMULATE, + NATIVE, + FORCE, + PASS, + DISCARD, +} fuamode; + +static int +fua_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + if (strcmp (key, "fuamode") == 0) { + if (strcmp (value, "none") == 0) + fuamode = NONE; + if (strcmp (value, "emulate") == 0) + fuamode = EMULATE; + else if (strcmp (value, "native") == 0) + fuamode = NATIVE; + else if (strcmp (value, "force") == 0) + fuamode = FORCE; + else if (strcmp (value, "pass") == 0) + fuamode = PASS; + else if (strcmp (value, "discard") == 0) + fuamode = DISCARD; + else { + nbdkit_error ("unknown fuamode '%s'", value); + return -1; + } + return 0; + } + return next (nxdata, key, value); +} + +#define fua_config_help \ + "fuamode= One of 'none' (default), 'emulate', 'native',\n" \ + " 'force', 'pass'." + +/* Check that desired mode is supported by plugin. */ +static int +fua_prepare (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle, + int readonly) +{ + int r; + + /* If we are opened readonly, this filter has no impact */ + if (readonly) + return 0; + + switch (fuamode) { + case NONE: + case PASS: + case DISCARD: + break; + case EMULATE: + r = next_ops->can_flush (nxdata); + if (r == -1) + return -1; + if (r == 0) { + nbdkit_error ("fuamode 'emulate' requires plugin flush support"); + return -1; + } + break; + case NATIVE: + case FORCE: + r = next_ops->can_fua (nxdata); + if (r == -1) + return -1; + if (r == NBDKIT_FUA_NONE) { + nbdkit_error ("fuamode '%s' requires plugin fua support", + fuamode == EMULATE ? "emulate" : "force"); + return -1; + } + break; + } + return 0; +} + +/* Advertise proper flush support. */ +static int +fua_can_flush (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle) +{ + switch (fuamode) { + case FORCE: + case DISCARD: + return 1; /* Advertise our no-op flush, even if plugin lacks it */ + case NONE: + case EMULATE: + case NATIVE: + case PASS: + return next_ops->can_flush (nxdata); + } + abort (); +} + +/* Advertise desired fua mode. */ +static int +fua_can_fua (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle) +{ + switch (fuamode) { + case NONE: + return NBDKIT_FUA_NONE; + case EMULATE: + return NBDKIT_FUA_EMULATE; + case NATIVE: + case FORCE: + case DISCARD: + return NBDKIT_FUA_NATIVE; + case PASS: + return next_ops->can_fua (nxdata); + } + abort (); +} + +static int +fua_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, const void *buf, uint32_t count, uint64_t offs, + uint32_t flags, int *err) +{ + int r; + bool need_flush = false; + + switch (fuamode) { + case NONE: + assert (!(flags & NBDKIT_FLAG_FUA)); + break; + case EMULATE: + if (flags & NBDKIT_FLAG_FUA) { + need_flush = true; + flags &= ~NBDKIT_FLAG_FUA; + } + break; + case NATIVE: + case PASS: + break; + case FORCE: + flags |= NBDKIT_FLAG_FUA; + break; + case DISCARD: + flags &= ~NBDKIT_FLAG_FUA; + break; + } + r = next_ops->pwrite (nxdata, buf, count, offs, flags, err); + if (r != -1 && need_flush) + r = next_ops->flush (nxdata, 0, err); + return r; +} + +static int +fua_flush (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t flags, int *err) +{ + switch (fuamode) { + case FORCE: + return 0; /* Nothing to flush, since all writes already used FUA */ + case DISCARD: + return 0; /* Drop flushes! */ + case NONE: + case EMULATE: + case NATIVE: + case PASS: + return next_ops->flush (nxdata, flags, err); + } + abort (); +} + +static int +fua_trim (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offs, uint32_t flags, + int *err) +{ + int r; + bool need_flush = false; + + switch (fuamode) { + case NONE: + assert (!(flags & NBDKIT_FLAG_FUA)); + break; + case EMULATE: + if (flags & NBDKIT_FLAG_FUA) { + need_flush = true; + flags &= ~NBDKIT_FLAG_FUA; + } + break; + case NATIVE: + case PASS: + break; + case FORCE: + flags |= NBDKIT_FLAG_FUA; + break; + case DISCARD: + flags &= ~NBDKIT_FLAG_FUA; + break; + } + r = next_ops->trim (nxdata, count, offs, flags, err); + if (r != -1 && need_flush) + r = next_ops->flush (nxdata, 0, err); + return r; +} + +static int +fua_zero (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offs, uint32_t flags, + int *err) +{ + int r; + bool need_flush = false; + + switch (fuamode) { + case NONE: + assert (!(flags & NBDKIT_FLAG_FUA)); + break; + case EMULATE: + if (flags & NBDKIT_FLAG_FUA) { + need_flush = true; + flags &= ~NBDKIT_FLAG_FUA; + } + break; + case NATIVE: + case PASS: + break; + case FORCE: + flags |= NBDKIT_FLAG_FUA; + break; + case DISCARD: + flags &= ~NBDKIT_FLAG_FUA; + break; + } + r = next_ops->zero (nxdata, count, offs, flags, err); + if (r != -1 && need_flush) + r = next_ops->flush (nxdata, 0, err); + return r; +} + +static struct nbdkit_filter filter = { + .name = "fua", + .longname = "nbdkit fua filter", + .config = fua_config, + .config_help = fua_config_help, + .prepare = fua_prepare, + .can_flush = fua_can_flush, + .can_fua = fua_can_fua, + .pwrite = fua_pwrite, + .flush = fua_flush, + .trim = fua_trim, + .zero = fua_zero, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/fua/nbdkit-fua-filter.pod b/filters/fua/nbdkit-fua-filter.pod new file mode 100644 index 0000000..0f9b974 --- /dev/null +++ b/filters/fua/nbdkit-fua-filter.pod @@ -0,0 +1,151 @@ +=head1 NAME + +nbdkit-fua-filter - modify nbdkit flush and Forced Unit Access (FUA) + +=head1 SYNOPSIS + + nbdkit --filter=fua plugin [fuamode=MODE] [plugin-args...] + +=head1 DESCRIPTION + +C is a filter that intentionally modifies handling +of the S<“Forced Unit Access”> (FUA) flag across the NBD protocol. + +This filter can be used to disable FUA and flush requests for speed +(although this is unsafe). Also it can be used to test client or +server fallbacks, and for evaluating timing differences between proper +use of FUA compared to a full flush. + +=head1 PARAMETERS + +The C parameter is optional and controls which mode the +filter will use. + +=over 4 + +=item B + +(nbdkit E 1.22) + +The filter will discard FUA and flush requests. + +B: If the NBD disk contains a filesystem then you +will likely lose data in the event of a crash. It should only be used +for ephemeral data which you can easily recreate, such as caches, +builds, test data, etc. + +=item B + +(nbdkit E 1.22) + +Pass through FUA and flush requests unchanged. Turns the filter into +a no-op. + +=item B + +FUA support is not advertised to the client. Clients will not be able +to issue FUA write requests, but can send flush commands if the plugin +supports it. + +This is the default if the C parameter is not specified. + +=item B + +The filter will emulate FUA support using the plugin’s C<.flush> +callback, regardless of whether the plugin itself supports more +efficient FUA. It refuses to load if the plugin does not support +flush. + +=item B + +The filter will advertise native FUA support to the client and earlier +filters in the chain. This is useful for comparing optimizations of +FUA handling when splitting large requests into sub-requests. It +refuses to load if the plugin’s C<.can_fua> callback returns +C. + +=item B + +The filter will request FUA on all write transactions, even when the +client did not request it (“write-through” mode). In turn client +flush requests become no-ops. It refuses to load if the plugin’s +C<.can_fua> callback returns C. + +=back + +=head1 EXAMPLES + +=over 4 + +=item * + +Serve the file F discarding all FUA and flush requests. +This can greatly improve performance, but you will likely lose data if +there is a crash, so it is not safe. + + nbdkit --filter=discard file disk.img fuamode=discard + +=item * + +Serve the file F, but force the client to submit explicit +flush requests instead of using C: + + nbdkit --filter=fua file disk.img + +=item * + +Observe that the blocksize filter optimizes its handling of the FUA +flag based on whether it knows nbdkit will be emulating FUA with a +flush, by comparing the log filter output on top of different fua +filter modes: + + nbdkit --filter=blocksize --filter=log --filter=fua file disk.img \ + maxlen=4k logfile=fua_emulated fuamode=emulate + nbdkit --filter=blocksize --filter=log --filter=fua file disk.img \ + maxlen=4k logfile=fua_native fuamode=native + +=item * + +Serve the file F in write-through mode, where all writes +from the client are immediately flushed to disk as if the client had +always requested FUA: + + nbdkit --filter=fua file disk.img fuamode=force + +=back + +=head1 FILES + +=over 4 + +=item F<$filterdir/nbdkit-fua-filter.so> + +The filter. + +Use C to find the location of C<$filterdir>. + +=back + +=head1 VERSION + +C first appeared in nbdkit 1.4. + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Eric Blake + +=head1 COPYRIGHT + +Copyright (C) 2018 Red Hat Inc. diff --git a/filters/gzip/Makefile.am b/filters/gzip/Makefile.am new file mode 100644 index 0000000..d122c03 --- /dev/null +++ b/filters/gzip/Makefile.am @@ -0,0 +1,75 @@ +# nbdkit +# Copyright (C) 2019-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-gzip-filter.pod + +if HAVE_ZLIB + +filter_LTLIBRARIES = nbdkit-gzip-filter.la + +nbdkit_gzip_filter_la_SOURCES = \ + gzip.c \ + $(top_srcdir)/include/nbdkit-filter.h \ + $(NULL) + +nbdkit_gzip_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include \ + -I$(top_srcdir)/common/utils \ + $(NULL) +nbdkit_gzip_filter_la_CFLAGS = \ + $(WARNINGS_CFLAGS) \ + $(ZLIB_CFLAGS) \ + $(NULL) +nbdkit_gzip_filter_la_LIBADD = \ + $(top_builddir)/common/utils/libutils.la \ + $(ZLIB_LIBS) \ + $(NULL) +nbdkit_gzip_filter_la_LDFLAGS = \ + -module -avoid-version -shared $(NO_UNDEFINED_ON_WINDOWS) \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms \ + $(NULL) + +if HAVE_POD + +man_MANS = nbdkit-gzip-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-gzip-filter.1: nbdkit-gzip-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD + +endif diff --git a/filters/gzip/Makefile.in b/filters/gzip/Makefile.in new file mode 100644 index 0000000..8359c24 --- /dev/null +++ b/filters/gzip/Makefile.in @@ -0,0 +1,916 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2019-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# nbdkit +# Copyright (C) 2013-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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uninstall-man1 + +.PRECIOUS: Makefile + + +@HAVE_POD_TRUE@@HAVE_ZLIB_TRUE@nbdkit-gzip-filter.1: nbdkit-gzip-filter.pod +@HAVE_POD_TRUE@@HAVE_ZLIB_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@@HAVE_ZLIB_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@@HAVE_ZLIB_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/filters/gzip/gzip.c b/filters/gzip/gzip.c new file mode 100644 index 0000000..d92e00d --- /dev/null +++ b/filters/gzip/gzip.c @@ -0,0 +1,355 @@ +/* nbdkit + * Copyright (C) 2018-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include + +#include "cleanup.h" +#include "minmax.h" + +/* The first thread to call gzip_prepare has to uncompress the whole + * plugin to the temporary file. This lock prevents concurrent + * access. + */ +static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER; + +/* Temporary file storing the uncompressed data. */ +static int fd = -1; + +/* Size of compressed and uncompressed data. */ +static int64_t compressed_size = -1, size = -1; + +static void +gzip_unload (void) +{ + if (fd >= 0) + close (fd); +} + +static int +gzip_thread_model (void) +{ + return NBDKIT_THREAD_MODEL_PARALLEL; +} + +static void * +gzip_open (nbdkit_next_open *next, nbdkit_backend *nxdata, + int readonly, const char *exportname, int is_tls) +{ + /* Always pass readonly=1 to the underlying plugin. */ + if (next (nxdata, 1, exportname) == -1) + return NULL; + + return NBDKIT_HANDLE_NOT_NEEDED; +} + +/* Convert a zlib error (always negative) to an nbdkit error message, + * and return errno correctly. + */ +static void +zerror (const char *op, const z_stream *strm, int zerr) +{ + if (zerr == Z_MEM_ERROR) { + errno = ENOMEM; + nbdkit_error ("gzip: %s: %m", op); + } + else { + errno = EIO; + if (strm->msg) + nbdkit_error ("gzip: %s: %s", op, strm->msg); + else + nbdkit_error ("gzip: %s: unknown error: %d", op, zerr); + } +} + +/* Write a whole buffer to the temporary file or fail. */ +static int +xwrite (const void *buf, size_t count) +{ + ssize_t r; + + while (count > 0) { + r = write (fd, buf, count); + if (r == -1) { + nbdkit_error ("write: %m"); + return -1; + } + buf += r; + count -= r; + } + + return 0; +} + +/* The first thread to call gzip_prepare uncompresses the whole plugin. */ +static int +do_uncompress (struct nbdkit_next_ops *next_ops, void *nxdata) +{ + z_stream strm; + int zerr; + const char *tmpdir; + size_t len; + char *template; + CLEANUP_FREE char *in_block = NULL, *out_block = NULL; + + /* Choose a generous block size here because it's more efficient + * with some plugins (esp. curl). XXX This should really be + * configurable. + */ + const size_t block_size = 4 * 1024 * 1024; + + assert (size == -1); + + /* Get the size of the underlying plugin. */ + compressed_size = next_ops->get_size (nxdata); + if (compressed_size == -1) + return -1; + + /* Create the temporary file. */ + tmpdir = getenv ("TMPDIR"); + if (!tmpdir) + tmpdir = LARGE_TMPDIR; + + len = strlen (tmpdir) + 8; + template = alloca (len); + snprintf (template, len, "%s/XXXXXX", tmpdir); + +#ifdef HAVE_MKOSTEMP + fd = mkostemp (template, O_CLOEXEC); +#else + /* This is only invoked serially with the lock held, so this is safe. */ + fd = mkstemp (template); + if (fd >= 0) { + fd = set_cloexec (fd); + if (fd < 0) { + int e = errno; + unlink (template); + errno = e; + } + } +#endif + if (fd == -1) { + nbdkit_error ("mkostemp: %s: %m", tmpdir); + return -1; + } + + unlink (template); + + /* Uncompress the whole plugin. This is REQUIRED in order to + * implement gzip_get_size. See: https://stackoverflow.com/a/9213826 + * + * For use of inflateInit2 on gzip streams see: + * https://stackoverflow.com/a/1838702 + */ + memset (&strm, 0, sizeof strm); + zerr = inflateInit2 (&strm, 16+MAX_WBITS); + if (zerr != Z_OK) { + zerror ("inflateInit2", &strm, zerr); + return -1; + } + + in_block = malloc (block_size); + if (!in_block) { + nbdkit_error ("malloc: %m"); + return -1; + } + out_block = malloc (block_size); + if (!out_block) { + nbdkit_error ("malloc: %m"); + return -1; + } + + for (;;) { + /* Do we need to read more from the plugin? */ + if (strm.avail_in == 0 && strm.total_in < compressed_size) { + size_t n = MIN (block_size, compressed_size - strm.total_in); + int err = 0; + + if (next_ops->pread (nxdata, in_block, (uint32_t) n, strm.total_in, + 0, &err) == -1) { + errno = err; + return -1; + } + + strm.next_in = (void *) in_block; + strm.avail_in = n; + } + + /* Inflate the next chunk of input. */ + strm.next_out = (void *) out_block; + strm.avail_out = block_size; + zerr = inflate (&strm, Z_SYNC_FLUSH); + if (zerr < 0) { + zerror ("inflate", &strm, zerr); + return -1; + } + + /* Write the output to the file. */ + if (xwrite (out_block, (char *) strm.next_out - out_block) == -1) + return -1; + + if (zerr == Z_STREAM_END) + break; + } + + /* Set the size to the total uncompressed size. */ + size = strm.total_out; + nbdkit_debug ("gzip: uncompressed size: %" PRIi64, size); + + zerr = inflateEnd (&strm); + if (zerr != Z_OK) { + zerror ("inflateEnd", &strm, zerr); + return -1; + } + + return 0; +} + +static int +gzip_prepare (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle, + int readonly) +{ + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + + if (size >= 0) + return 0; + return do_uncompress (next_ops, nxdata); +} + +/* Whatever the plugin says, this filter makes it read-only. */ +static int +gzip_can_write (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + return 0; +} + +/* Similar to above, whatever the plugin says, extents are not + * supported. + */ +static int +gzip_can_extents (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + return 0; +} + +/* We are already operating as a cache regardless of the plugin's + * underlying .can_cache, but it's easiest to just rely on nbdkit's + * behavior of calling .pread for caching. + */ +static int +gzip_can_cache (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + return NBDKIT_CACHE_EMULATE; +} + +/* Get the file size. */ +static int64_t +gzip_get_size (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + int64_t t; + + /* This must be true because gzip_prepare must have been called. */ + assert (size >= 0); + + /* Check the plugin size didn't change underneath us. */ + t = next_ops->get_size (nxdata); + if (t == -1) + return -1; + if (t != compressed_size) { + nbdkit_error ("plugin size changed unexpectedly: " + "you must restart nbdkit so the gzip filter " + "can uncompress the data again"); + return -1; + } + + return size; +} + +/* Read data from the temporary file. */ +static int +gzip_pread (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + /* This must be true because gzip_prepare must have been called. */ + assert (fd >= 0); + + while (count > 0) { + ssize_t r = pread (fd, buf, count, offset); + if (r == -1) { + nbdkit_error ("pread: %m"); + return -1; + } + if (r == 0) { + nbdkit_error ("pread: unexpected end of file"); + return -1; + } + buf += r; + count -= r; + offset += r; + } + + return 0; +} + +static struct nbdkit_filter filter = { + .name = "gzip", + .longname = "nbdkit gzip filter", + .unload = gzip_unload, + .thread_model = gzip_thread_model, + .open = gzip_open, + .prepare = gzip_prepare, + .can_write = gzip_can_write, + .can_extents = gzip_can_extents, + .can_cache = gzip_can_cache, + .prepare = gzip_prepare, + .get_size = gzip_get_size, + .pread = gzip_pread, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/gzip/nbdkit-gzip-filter.pod b/filters/gzip/nbdkit-gzip-filter.pod new file mode 100644 index 0000000..da0cf62 --- /dev/null +++ b/filters/gzip/nbdkit-gzip-filter.pod @@ -0,0 +1,85 @@ +=head1 NAME + +nbdkit-gzip-filter - decompress a .gz file + +=head1 SYNOPSIS + + nbdkit file --filter=gzip FILENAME.gz + +=head1 DESCRIPTION + +C is a filter for L which transparently +decompresses a gzip-compressed file. You can place this filter on top +of L to decompress a local F<.gz> file, or on +top of other plugins such as L: + + nbdkit curl --filter=gzip https://example.com/disk.gz + +With L it can be used to extract files from a +compressed tar file: + + nbdkit curl --filter=tar --filter=gzip \ + https://example.com/file.tar.gz tar-entry=disk.img + +The filter only allows read-only connections. + +B that gzip files are not very good for random access in large +files because seeking to a position in the gzip file involves +decompressing all data before that point in the file. A more +practical method to compress large disk images is to use the L +format and L. + +To allow seeking this filter has to keep the contents of the complete +uncompressed file, which it does in a hidden temporary file under +C<$TMPDIR>. + +=head1 PARAMETERS + +There are no parameters specific to this plugin. + +=head1 ENVIRONMENT VARIABLES + +=over 4 + +=item C + +Because the gzip format is not seekable, this filter has to store the +complete contents of the compressed file in a temporary file located +in F by default. You can override this location by setting +the C environment variable before starting nbdkit. + +=back + +=head1 FILES + +=over 4 + +=item F<$plugindir/nbdkit-gzip-plugin.so> + +The plugin. + +Use C to find the location of C<$plugindir>. + +=back + +=head1 VERSION + +C first appeared in nbdkit 1.22. It is derived +from C which first appeared in nbdkit 1.0. + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2013-2020 Red Hat Inc. diff --git a/filters/ip/Makefile.am b/filters/ip/Makefile.am new file mode 100644 index 0000000..16d2305 --- /dev/null +++ b/filters/ip/Makefile.am @@ -0,0 +1,67 @@ +# nbdkit +# Copyright (C) 2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-ip-filter.pod + +filter_LTLIBRARIES = nbdkit-ip-filter.la + +nbdkit_ip_filter_la_SOURCES = \ + ip.c \ + $(top_srcdir)/include/nbdkit-filter.h \ + $(NULL) + +nbdkit_ip_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include \ + -I$(top_srcdir)/common/utils \ + $(NULL) +nbdkit_ip_filter_la_CFLAGS = $(WARNINGS_CFLAGS) +nbdkit_ip_filter_la_LDFLAGS = \ + -module -avoid-version -shared $(NO_UNDEFINED_ON_WINDOWS) \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms \ + $(NULL) +nbdkit_ip_filter_la_LIBADD = \ + $(top_builddir)/common/utils/libutils.la \ + $(NULL) + +if HAVE_POD + +man_MANS = nbdkit-ip-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-ip-filter.1: nbdkit-ip-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/ip/Makefile.in b/filters/ip/Makefile.in new file mode 100644 index 0000000..30c119f --- /dev/null +++ b/filters/ip/Makefile.in @@ -0,0 +1,907 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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"$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES) + -test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES) + +maintainer-clean-generic: + @echo "This command is intended for maintainers to use" + @echo "it deletes files that may require special tools to rebuild." +clean: clean-am + +clean-am: clean-filterLTLIBRARIES clean-generic clean-libtool \ + mostlyclean-am + +distclean: distclean-am + -rm -f ./$(DEPDIR)/nbdkit_ip_filter_la-ip.Plo + -rm -f Makefile +distclean-am: clean-am distclean-compile distclean-generic \ + distclean-tags + +dvi: dvi-am + +dvi-am: + +html: html-am + +html-am: + +info: info-am + +info-am: + +install-data-am: install-filterLTLIBRARIES install-man + +install-dvi: install-dvi-am + +install-dvi-am: + +install-exec-am: + +install-html: install-html-am + +install-html-am: + +install-info: install-info-am + +install-info-am: + +install-man: install-man1 + +install-pdf: install-pdf-am + +install-pdf-am: + +install-ps: install-ps-am + +install-ps-am: + +installcheck-am: + +maintainer-clean: maintainer-clean-am + -rm -f ./$(DEPDIR)/nbdkit_ip_filter_la-ip.Plo + -rm -f Makefile +maintainer-clean-am: distclean-am maintainer-clean-generic + +mostlyclean: mostlyclean-am + +mostlyclean-am: mostlyclean-compile mostlyclean-generic \ + mostlyclean-libtool + +pdf: pdf-am + +pdf-am: + +ps: ps-am + +ps-am: + +uninstall-am: uninstall-filterLTLIBRARIES uninstall-man + +uninstall-man: uninstall-man1 + +.MAKE: install-am install-strip + +.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-am clean \ + clean-filterLTLIBRARIES clean-generic clean-libtool \ + cscopelist-am ctags ctags-am distclean distclean-compile \ + distclean-generic distclean-libtool distclean-tags distdir dvi \ + dvi-am html html-am info info-am install install-am \ + install-data install-data-am install-dvi install-dvi-am \ + install-exec install-exec-am install-filterLTLIBRARIES \ + install-html install-html-am install-info install-info-am \ + install-man install-man1 install-pdf install-pdf-am install-ps \ + install-ps-am install-strip installcheck installcheck-am \ + installdirs maintainer-clean maintainer-clean-generic \ + mostlyclean mostlyclean-compile mostlyclean-generic \ + mostlyclean-libtool pdf pdf-am ps ps-am tags tags-am uninstall \ + uninstall-am uninstall-filterLTLIBRARIES uninstall-man \ + uninstall-man1 + +.PRECIOUS: Makefile + + +@HAVE_POD_TRUE@nbdkit-ip-filter.1: nbdkit-ip-filter.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/filters/ip/ip.c b/filters/ip/ip.c new file mode 100644 index 0000000..4f9410d --- /dev/null +++ b/filters/ip/ip.c @@ -0,0 +1,478 @@ +/* nbdkit + * Copyright (C) 2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "ascii-string.h" +#include "cleanup.h" + +/* -D ip.rules=1 to enable debugging of rules and rule matching. */ +int ip_debug_rules; + +struct rule { + struct rule *next; + enum { BAD = 0, ANY, ANYV4, ANYV6, IPV4, IPV6 } type; + union { + struct in_addr ipv4; + struct in6_addr ipv6; + } u; + unsigned prefixlen; +}; + +static struct rule *allow_rules, *allow_rules_last; +static struct rule *deny_rules, *deny_rules_last; + +static void +print_rule (const char *name, const struct rule *rule, const char *suffix) +{ + union { + char addr4[INET_ADDRSTRLEN]; + char addr6[INET6_ADDRSTRLEN]; + } u; + + switch (rule->type) { + case ANY: + nbdkit_debug ("%s=any%s", name, suffix); + break; + case ANYV4: + nbdkit_debug ("%s=anyipv4%s", name, suffix); + break; + case ANYV6: + nbdkit_debug ("%s=anyipv6%s", name, suffix); + break; + case IPV4: + inet_ntop (AF_INET, &rule->u.ipv4, u.addr4, sizeof u.addr4); + nbdkit_debug ("%s=ipv4:%s/%u%s", name, u.addr4, rule->prefixlen, suffix); + break; + case IPV6: + inet_ntop (AF_INET6, &rule->u.ipv6, u.addr6, sizeof u.addr6); + nbdkit_debug ("%s=ipv6:[%s]/%u%s", name, u.addr6, rule->prefixlen, suffix); + break; + + case BAD: + nbdkit_debug ("%s=BAD(!)%s", name, suffix); + break; + default: + nbdkit_debug ("%s=UNKNOWN RULE TYPE(!)%s", name, suffix); + } +} + +static void +print_rules (const char *name, const struct rule *rules) +{ + const struct rule *rule; + + for (rule = rules; rule != NULL; rule = rule->next) + print_rule (name, rule, ""); +} + +static void +free_rules (struct rule *rules) +{ + struct rule *rule, *next; + + for (rule = rules; rule != NULL; rule = next) { + next = rule->next; + free (rule); + } +} + +static void +ip_unload (void) +{ + free_rules (allow_rules); + free_rules (deny_rules); +} + +/* Try to parse the first n characters of value as an IPv4 or IPv6 + * address. Returns: IPV4 or IPV6 if the parse was successful, with + * the address being written into the rule struct. Returns 0 if we + * were unable to parse it. + */ +static int +parse_ip_address (const char *value, size_t n, struct rule *ret) +{ +#define MAX_ADDRLEN 64 + char addr[MAX_ADDRLEN+1]; + + if (n > MAX_ADDRLEN) + return 0; /* Value too long to be an IP address. */ + + /* We have to copy it to our own buffer because inet_pton cannot + * parse a buffer which is not \0-terminated. + */ + strncpy (addr, value, n); + addr[n] = '\0'; + + if (inet_pton (AF_INET, addr, &ret->u.ipv4) == 1) + return IPV4; + + if (inet_pton (AF_INET6, addr, &ret->u.ipv6) == 1) + return IPV6; + + return 0; +} + +/* Try to parse an unsigned from the first n characters of value. + * Returns 0 if successful or -1 on error. Basically a wrapper around + * nbdkit_parse_unsigned. + */ +static int +parse_unsigned (const char *paramname, + const char *value, size_t n, unsigned *ret) +{ +#define MAX_LEN 32 + char buf[MAX_LEN+1]; + + if (n > MAX_LEN) { + nbdkit_error ("%s: cannot parse prefix length: %.*s", + paramname, (int) n, value); + return -1; + } + + strncpy (buf, value, n); + buf[n] = '\0'; + + return nbdkit_parse_unsigned (paramname, buf, ret); +} + +static int +parse_rule (const char *paramname, + struct rule **rules, struct rule **rules_last, + const char *value, size_t n) +{ + struct rule *new_rule; + const char *p; + int type; + + new_rule = calloc (1, sizeof *new_rule); + if (new_rule == NULL) { + nbdkit_error ("calloc: %m"); + return -1; + } + if (*rules == NULL) + *rules = new_rule; + else + (*rules_last)->next = new_rule; + *rules_last = new_rule; + + assert (n > 0); + + if (n == 3 && (ascii_strncasecmp (value, "all", 3) == 0 || + ascii_strncasecmp (value, "any", 3) == 0)) { + new_rule->type = ANY; + return 0; + } + + if (n == 7 && (ascii_strncasecmp (value, "allipv4", 7) == 0 || + ascii_strncasecmp (value, "anyipv4", 7) == 0)) { + new_rule->type = ANYV4; + return 0; + } + + if (n == 7 && (ascii_strncasecmp (value, "allipv6", 7) == 0 || + ascii_strncasecmp (value, "anyipv6", 7) == 0)) { + new_rule->type = ANYV6; + return 0; + } + + /* Address with prefixlen. */ + if ((p = strchr (value, '/')) != NULL) { + size_t pllen = &value[n] - &p[1]; + size_t addrlen = p - value; + + /* Try parsing the prefixlen. */ + if (parse_unsigned (paramname, p+1, pllen, &new_rule->prefixlen) == -1) + return -1; + + /* Try parsing the address as IPv4 or IPv6. */ + type = parse_ip_address (value, addrlen, new_rule); + if (type == IPV4) { + if (new_rule->prefixlen > 32) { + nbdkit_error ("prefix is > 32 in %s=%.*s", + paramname, (int) n, value); + return -1; + } + new_rule->type = IPV4; + } + else if (type == IPV6) { + if (new_rule->prefixlen > 128) { + nbdkit_error ("prefix is > 128 in %s=%.*s", + paramname, (int) n, value); + return -1; + } + new_rule->type = IPV6; + } + else { + nbdkit_error ("cannot parse address \"%.*s\" from %s=%.*s", + (int) addrlen, value, paramname, (int) n, value); + return -1; + } + + return 0; + } + + /* IPv4 or IPv6 address without prefixlen. */ + type = parse_ip_address (value, n, new_rule); + if (type == IPV4) { + new_rule->prefixlen = 32; + new_rule->type = IPV4; + return 0; + } + else if (type == IPV6) { + new_rule->prefixlen = 128; + new_rule->type = IPV6; + return 0; + } + + nbdkit_error ("don't know how to parse rule: %s=%.*s", + paramname, (int) n, value); + return -1; +} + +static int +parse_rules (const char *paramname, + struct rule **rules, struct rule **rules_last, + const char *value) +{ + size_t n; + + while (*value != '\0') { + n = strcspn (value, ","); + if (n == 0) { + nbdkit_error ("%s: empty entry in rule list", paramname); + return -1; + } + if (parse_rule (paramname, rules, rules_last, value, n) == -1) + return -1; + value += n; + if (*value == ',') + value++; + } + + return 0; +} + +static int +ip_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + /* For convenience we permit multiple allow and deny parameters, + * which append rules to the end of the respective list. + */ + if (strcmp (key, "allow") == 0) { + if (parse_rules (key, &allow_rules, &allow_rules_last, value) == -1) + return -1; + return 0; + } + else if (strcmp (key, "deny") == 0) { + if (parse_rules (key, &deny_rules, &deny_rules_last, value) == -1) + return -1; + return 0; + } + + return next (nxdata, key, value); +} + +static int +ip_config_complete (nbdkit_next_config_complete *next, void *nxdata) +{ + if (ip_debug_rules) { + print_rules ("ip: parsed allow", allow_rules); + print_rules ("ip: parsed deny", deny_rules); + } + + return next (nxdata); +} + +#define ip_config_help \ + "allow=addr[,addr...] Set allow list.\n" \ + "deny=addr[,addr...] Set deny list." + +/* Compare two IPv6 addresses as far as prefixlen bits. Both + * addresses are in network byte order (ie. big endian) so we can + * compare them byte by byte from the beginning without considering + * host endianness. + */ +static bool +ipv6_equal (struct in6_addr addr1, struct in6_addr addr2, unsigned prefixlen) +{ + size_t n; + + for (n = 0; n < 16; ++n) { + if (prefixlen == 0) + return true; + + if (prefixlen < 8) { + const uint8_t mask = 0xff << (8 - prefixlen); + return (addr1.s6_addr[n] & mask) == (addr2.s6_addr[n] & mask); + } + + if (addr1.s6_addr[n] != addr2.s6_addr[n]) + return false; + + prefixlen -= 8; + } + + assert (prefixlen == 0); + + return true; +} + +static bool +matches_rule (const struct rule *rule, + int family, const struct sockaddr *addr) +{ + const struct sockaddr_in *sin; + uint32_t cin, rin, mask; + const struct sockaddr_in6 *sin6; + + switch (rule->type) { + case ANY: + return true; + + case ANYV4: + return family == AF_INET; + + case ANYV6: + return family == AF_INET6; + + case IPV4: + if (family != AF_INET) return false; + sin = (struct sockaddr_in *) addr; + cin = ntohl (sin->sin_addr.s_addr); + rin = ntohl (rule->u.ipv4.s_addr); + mask = 0xffffffff << (32 - rule->prefixlen); + return (cin & mask) == (rin & mask); + + case IPV6: + if (family != AF_INET6) return false; + sin6 = (struct sockaddr_in6 *) addr; + return ipv6_equal (sin6->sin6_addr, rule->u.ipv6, rule->prefixlen); + + case BAD: + default: + abort (); + } +} + +static bool +matches_rules_list (const char *name, const struct rule *rules, + int family, const struct sockaddr *addr) +{ + const struct rule *rule; + bool b; + + for (rule = rules; rule != NULL; rule = rule->next) { + b = matches_rule (rule, family, addr); + if (ip_debug_rules) + print_rule (name, rule, b ? " => yes" : " => no"); + if (b) + return true; + } + + return false; +} + +static bool +check_if_allowed (const struct sockaddr *addr) +{ + int family = ((struct sockaddr_in *)addr)->sin_family; + + /* There's an implicit allow all for non-IP sockets, see the manual. */ + if (family != AF_INET && family != AF_INET6) + return true; + + if (matches_rules_list ("ip: match source with allow", + allow_rules, family, addr)) + return true; + + if (matches_rules_list ("ip: match source with deny", + deny_rules, family, addr)) + return false; + + return true; +} + +static int +ip_preconnect (nbdkit_next_preconnect *next, void *nxdata, int readonly) +{ + struct sockaddr_storage addr; + socklen_t addrlen = sizeof addr; + + if (nbdkit_peer_name ((struct sockaddr *) &addr, &addrlen) == -1) + return -1; /* We should fail closed ... */ + + /* Follow the rules. */ + if (check_if_allowed ((struct sockaddr *) &addr) == false) { + nbdkit_error ("client not permitted to connect " + "because of IP address restriction"); + return -1; + } + + if (next (nxdata, readonly) == -1) + return -1; + + return 0; +} + +static int +ip_thread_model (void) +{ + return NBDKIT_THREAD_MODEL_PARALLEL; +} + +static struct nbdkit_filter filter = { + .name = "ip", + .longname = "nbdkit ip filter", + .unload = ip_unload, + .thread_model = ip_thread_model, + .config = ip_config, + .config_complete = ip_config_complete, + .config_help = ip_config_help, + .preconnect = ip_preconnect, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/ip/nbdkit-ip-filter.pod b/filters/ip/nbdkit-ip-filter.pod new file mode 100644 index 0000000..1710861 --- /dev/null +++ b/filters/ip/nbdkit-ip-filter.pod @@ -0,0 +1,158 @@ +=head1 NAME + +nbdkit-ip-filter - filter clients by IP address + +=head1 SYNOPSIS + + nbdkit --filter=ip PLUGIN [allow=addr[,addr...]] + [deny=addr[,addr...]] + +=head1 DESCRIPTION + +C can allow or deny client connections by their IP +address. Usually it is better to control this outside nbdkit, for +example using TCP wrappers or a firewall, but this filter can be used +if these are not available. + +=head1 EXAMPLES + + nbdkit --filter=ip [...] allow=127.0.0.1,::1 deny=all + +Allow clients to connect on the loopback IPv4 or loopback IPv6 +address, deny all other clients. + + nbdkit --filter=ip [...] deny=8.0.0.0/8 + +Allow any client except connections from the IPv4 C<8.0.0.0/8> +network. + + nbdkit --filter=ip [...] allow=anyipv6 deny=all + +Allow IPv6 clients to connect from anywhere, deny all IPv4 +connections. + +=head1 RULES + +When a client connects, this filter checks its IP address against the +allow and deny lists as follows: + +=over 4 + +=item 1 + +If the address matches any in the allow list, permission is granted. + +=item 2 + +If the address matches any in the deny list, permission is denied. + +=item 3 + +Otherwise permission is granted. + +=back + +If either the C or C parameter is not present then it is +assumed to be an empty list. The order in which the parameters appear +on the command line does not matter; the allow list is always +processed first and the deny list second. + +The C and C parameters each contain a comma-separated +list of any of the following: + +=over 4 + +=item B + +=item B + +These keywords (which both have the same meaning) match any IP +address. + +=item B + +=item B + +These keywords match any IPv4 address. + +=item B + +=item B + +These keywords match any IPv6 address. + +=item AB<.>BB<.>CB<.>D + +This matches the single IPv4 address C, for example +C<127.0.0.1>. + +=item AB<.>BB<.>CB<.>DBNN + +This matches the range of IPv4 addresses C, for example +C<192.168.2.0/24> or C<10.0.0.0/8>. + +=item AB<:>BB<:>... + +This matches the single IPv6 address C. The usual IPv6 +address representations can be used (see S). + +=item AB<:>BB<:>...BNN + +This matches a range of IPv6 addresses C. + +=back + +=head2 Not filtered + +If neither the C nor the C parameter is given the filter +does nothing. + +The filter permits non-IP connections, such as Unix domain sockets or +AF_VSOCK. + +=head1 PARAMETERS + +=over 4 + +=item Baddr[B<,>...] + +Set list of allow rules. This parameter is optional, if omitted the +allow list is empty. + +=item Baddr[B<,>...] + +Set list of deny rules. This parameter is optional, if omitted the +deny list is empty. + +=back + +=head1 FILES + +=over 4 + +=item F<$filterdir/nbdkit-ip-filter.so> + +The filter. + +Use C to find the location of C<$filterdir>. + +=back + +=head1 VERSION + +C first appeared in nbdkit 1.18. + +=head1 SEE ALSO + +L, +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2019 Red Hat Inc. diff --git a/filters/limit/Makefile.am b/filters/limit/Makefile.am new file mode 100644 index 0000000..c721700 --- /dev/null +++ b/filters/limit/Makefile.am @@ -0,0 +1,66 @@ +# nbdkit +# Copyright (C) 2019-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-limit-filter.pod + +filter_LTLIBRARIES = nbdkit-limit-filter.la + +nbdkit_limit_filter_la_SOURCES = \ + limit.c \ + $(top_srcdir)/include/nbdkit-filter.h \ + $(NULL) + +nbdkit_limit_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/utils \ + $(NULL) +nbdkit_limit_filter_la_CFLAGS = $(WARNINGS_CFLAGS) +nbdkit_limit_filter_la_LDFLAGS = \ + -module -avoid-version -shared $(NO_UNDEFINED_ON_WINDOWS) \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms \ + $(NULL) +nbdkit_limit_filter_la_LIBADD = \ + $(top_builddir)/common/utils/libutils.la \ + $(NULL) + +if HAVE_POD + +man_MANS = nbdkit-limit-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-limit-filter.1: nbdkit-limit-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/limit/Makefile.in b/filters/limit/Makefile.in new file mode 100644 index 0000000..65a6256 --- /dev/null +++ b/filters/limit/Makefile.in @@ -0,0 +1,906 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2019-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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+1,129 @@ +/* nbdkit + * Copyright (C) 2019-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include + +#include + +#include "cleanup.h" + +/* Counts client connections. */ +static unsigned connections; +static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER; + +/* Client limit (0 = filter is disabled). */ +static unsigned limit = 1; + +static int +limit_config (nbdkit_next_config *next, nbdkit_backend *nxdata, + const char *key, const char *value) +{ + if (strcmp (key, "limit") == 0) { + if (nbdkit_parse_unsigned ("limit", value, &limit) == -1) + return -1; + return 0; + } + + return next (nxdata, key, value); +} + +static void +too_many_clients_error (void) +{ + nbdkit_error ("limit: too many clients connected, connection rejected"); +} + +/* We limit connections in the preconnect stage (in particular before + * any heavyweight NBD or TLS negotiations has been done). However we + * count connections in the open/close calls since clients can drop + * out between preconnect and open. + */ +static int +limit_preconnect (nbdkit_next_preconnect *next, nbdkit_backend *nxdata, + int readonly) +{ + if (next (nxdata, readonly) == -1) + return -1; + + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + + if (limit > 0 && connections >= limit) { + too_many_clients_error (); + return -1; + } + + return 0; +} + +static void * +limit_open (nbdkit_next_open *next, nbdkit_backend *nxdata, + int readonly, const char *exportname, int is_tls) +{ + if (next (nxdata, readonly, exportname) == -1) + return NULL; + + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + + /* We have to check again because clients can artificially slow down + * the NBD negotiation in order to bypass the limit otherwise. + */ + if (limit > 0 && connections >= limit) { + too_many_clients_error (); + return NULL; + } + + connections++; + return NBDKIT_HANDLE_NOT_NEEDED; +} + +static void +limit_close (void *handle) +{ + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + connections--; +} + +static struct nbdkit_filter filter = { + .name = "limit", + .longname = "nbdkit limit filter", + .config = limit_config, + .preconnect = limit_preconnect, + .open = limit_open, + .close = limit_close, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/limit/nbdkit-limit-filter.pod b/filters/limit/nbdkit-limit-filter.pod new file mode 100644 index 0000000..434dde5 --- /dev/null +++ b/filters/limit/nbdkit-limit-filter.pod @@ -0,0 +1,61 @@ +=head1 NAME + +nbdkit-limit-filter - limit number of clients that can connect concurrently + +=head1 SYNOPSIS + + nbdkit --filter=limit PLUGIN [limit=N] + +=head1 DESCRIPTION + +C is an nbdkit filter that limits the number of +clients which can connect concurrently. If more than C +(default: 1) clients try to connect at the same time then later +clients are rejected. + +=head1 PARAMETERS + +=over 4 + +=item BN + +Limit the number of concurrent clients to C. This parameter is +optional. If not specified then the limit defaults to 1. You can +also set this to 0 to make the number of clients unlimited (ie. +disable the filter). + +=back + +=head1 FILES + +=over 4 + +=item F<$filterdir/nbdkit-limit-filter.so> + +The filter. + +Use C to find the location of C<$filterdir>. + +=back + +=head1 VERSION + +C first appeared in nbdkit 1.20. + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2020 Red Hat Inc. diff --git a/filters/log/Makefile.am b/filters/log/Makefile.am new file mode 100644 index 0000000..f2c4d81 --- /dev/null +++ b/filters/log/Makefile.am @@ -0,0 +1,66 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-log-filter.pod + +filter_LTLIBRARIES = nbdkit-log-filter.la + +nbdkit_log_filter_la_SOURCES = \ + log.c \ + $(top_srcdir)/include/nbdkit-filter.h \ + $(NULL) + +nbdkit_log_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/utils \ + $(NULL) +nbdkit_log_filter_la_CFLAGS = $(WARNINGS_CFLAGS) +nbdkit_log_filter_la_LDFLAGS = \ + -module -avoid-version -shared $(NO_UNDEFINED_ON_WINDOWS) \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms \ + $(NULL) +nbdkit_log_filter_la_LIBADD = \ + $(top_builddir)/common/utils/libutils.la \ + $(NULL) + +if HAVE_POD + +man_MANS = nbdkit-log-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-log-filter.1: nbdkit-log-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/log/Makefile.in b/filters/log/Makefile.in new file mode 100644 index 0000000..34e62ad --- /dev/null +++ b/filters/log/Makefile.in @@ -0,0 +1,906 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "cleanup.h" +#include "utils.h" + +static uint64_t connections; +static char *logfilename; +static FILE *logfile; +static int append; +static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER; + +static void +log_unload (void) +{ + if (logfilename) + fclose (logfile); + free (logfilename); +} + +/* Called for each key=value passed on the command line. */ +static int +log_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + if (strcmp (key, "logfile") == 0) { + free (logfilename); + logfilename = strdup (value); + if (!logfilename) { + nbdkit_error ("strdup: %m"); + return -1; + } + return 0; + } + if (strcmp (key, "logappend") == 0) { + append = nbdkit_parse_bool (value); + if (append < 0) + return -1; + return 0; + } + return next (nxdata, key, value); +} + +static int +log_config_complete (nbdkit_next_config_complete *next, void *nxdata) +{ + if (!logfilename) { + nbdkit_error ("missing logfile= parameter for the log filter"); + return -1; + } + + return next (nxdata); +} + +/* Open the logfile. */ +static int +log_get_ready (nbdkit_next_get_ready *next, void *nxdata, int thread_model) +{ + int fd; + + /* Using fopen("ae"/"we") would be more convenient, but as Haiku + * still lacks that, use this instead. Atomicity is not essential + * here since .config completes before threads that might fork, if + * we have to later add yet another fallback to fcntl(fileno()) for + * systems without O_CLOEXEC. + */ + fd = open (logfilename, + O_CLOEXEC | O_WRONLY | O_CREAT | (append ? O_APPEND : O_TRUNC), + 0666); + if (fd < 0) { + nbdkit_error ("open: %s: %m", logfilename); + return -1; + } + logfile = fdopen (fd, append ? "a" : "w"); + if (!logfile) { + nbdkit_error ("fdopen: %s: %m", logfilename); + close (fd); + return -1; + } + + return next (nxdata); +} + +#define log_config_help \ + "logfile= (required) The file to place the log in.\n" \ + "logappend= True to append to the log (default false).\n" + +struct handle { + uint64_t connection; + uint64_t id; + char *exportname; + int tls; +}; + +/* Compute the next id number on the current connection. */ +static uint64_t +get_id (struct handle *h) +{ + ACQUIRE_LOCK_FOR_CURRENT_SCOPE(&lock); + return ++h->id; +} + +/* Output a timestamp and the log message. */ +static void __attribute__ ((format (printf, 4, 5))) +output (struct handle *h, const char *act, uint64_t id, const char *fmt, ...) +{ + va_list args; + struct timeval tv; + struct tm tm; + char timestamp[27] = "Time unknown"; + + /* Logging is best effort, so ignore failure to get timestamp */ + if (!gettimeofday (&tv, NULL)) + { + size_t s; + + gmtime_r (&tv.tv_sec, &tm); + s = strftime (timestamp, sizeof timestamp - sizeof ".000000" + 1, + "%F %T", &tm); + assert (s); + snprintf (timestamp + s, sizeof timestamp - s, ".%06ld", + 0L + tv.tv_usec); + } +#ifdef HAVE_FLOCKFILE + flockfile (logfile); +#endif + if (h) + fprintf (logfile, "%s connection=%" PRIu64 " %s ", timestamp, + h->connection, act); + else + fprintf (logfile, "%s %s ", timestamp, act); + if (id) + fprintf (logfile, "id=%" PRIu64 " ", id); + va_start (args, fmt); + vfprintf (logfile, fmt, args); + va_end (args); + fputc ('\n', logfile); + fflush (logfile); +#ifdef HAVE_FUNLOCKFILE + funlockfile (logfile); +#endif +} + +/* Shared code for a nicer log of return value */ +static void +output_return (struct handle *h, const char *act, uint64_t id, int r, int *err) +{ + const char *s = "Other=>EINVAL"; + + /* Only decode what protocol.c:nbd_errno() recognizes */ + if (r == -1) { + switch (*err) { + case EROFS: + s = "EROFS=>EPERM"; + break; + case EPERM: + s = "EPERM"; + break; + case EIO: + s = "EIO"; + break; + case ENOMEM: + s = "ENOMEM"; + break; +#ifdef EDQUOT + case EDQUOT: + s = "EDQUOT=>ENOSPC"; + break; +#endif + case EFBIG: + s = "EFBIG=>ENOSPC"; + break; + case ENOSPC: + s = "ENOSPC"; + break; +#ifdef ESHUTDOWN + case ESHUTDOWN: + s = "ESHUTDOWN"; + break; +#endif + case ENOTSUP: +#if ENOTSUP != EOPNOTSUPP + case EOPNOTSUPP: +#endif + s = "ENOTSUP"; + break; + case EOVERFLOW: + s = "EOVERFLOW"; + break; + case EINVAL: + s = "EINVAL"; + break; + } + } + else { + s = "Success"; + } + output (h, act, id, "return=%d (%s)", r, s); +} + +/* List exports. */ +static int +log_list_exports (nbdkit_next_list_exports *next, void *nxdata, + int readonly, int default_only, + struct nbdkit_exports *exports) +{ + static uint64_t id; + int r; + int err; + + output (NULL, "ListExports", ++id, "readonly=%d default_only=%d ...", + readonly, default_only); + r = next (nxdata, readonly, default_only, exports); + if (r == -1) { + err = errno; + output_return (NULL, "...ListExports", id, r, &err); + } + else { + FILE *fp; + CLEANUP_FREE char *exports_str = NULL; + size_t i, n, len = 0; + + fp = open_memstream (&exports_str, &len); + if (fp != NULL) { + n = nbdkit_exports_count (exports); + for (i = 0; i < n; ++i) { + struct nbdkit_export e = nbdkit_get_export (exports, i); + if (i > 0) + fprintf (fp, ", "); + shell_quote (e.name, fp); + } + + fclose (fp); + } + + output (NULL, "...ListExports", id, "exports=[%s] return=0", + exports_str ? exports_str : "(null)"); + } + return r; +} + +/* Open a connection. */ +static void * +log_open (nbdkit_next_open *next, void *nxdata, + int readonly, const char *exportname, int is_tls) +{ + struct handle *h; + + if (next (nxdata, readonly, exportname) == -1) + return NULL; + + h = malloc (sizeof *h); + if (h == NULL) { + nbdkit_error ("malloc: %m"); + return NULL; + } + + /* Save the exportname and tls state in the handle so we can display + * it in log_prepare. We must take a copy because this string has a + * short lifetime. + */ + h->exportname = strdup (exportname); + if (h->exportname == NULL) { + nbdkit_error ("strdup: %m"); + free (h); + return NULL; + } + h->tls = is_tls; + + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + h->connection = ++connections; + h->id = 0; + return h; +} + +static void +log_close (void *handle) +{ + struct handle *h = handle; + + free (h->exportname); + free (h); +} + +static int +log_prepare (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle, + int readonly) +{ + struct handle *h = handle; + const char *exportname = h->exportname; + int64_t size = next_ops->get_size (nxdata); + int w = next_ops->can_write (nxdata); + int f = next_ops->can_flush (nxdata); + int r = next_ops->is_rotational (nxdata); + int t = next_ops->can_trim (nxdata); + int z = next_ops->can_zero (nxdata); + int F = next_ops->can_fua (nxdata); + int e = next_ops->can_extents (nxdata); + int c = next_ops->can_cache (nxdata); + int Z = next_ops->can_fast_zero (nxdata); + + if (size < 0 || w < 0 || f < 0 || r < 0 || t < 0 || z < 0 || F < 0 || + e < 0 || c < 0 || Z < 0) + return -1; + + output (h, "Connect", 0, "export='%s' tls=%d size=0x%" PRIx64 " write=%d " + "flush=%d rotational=%d trim=%d zero=%d fua=%d extents=%d cache=%d " + "fast_zero=%d", exportname, h->tls, size, w, f, r, t, z, F, e, c, Z); + return 0; +} + +static int +log_finalize (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle) +{ + struct handle *h = handle; + + output (h, "Disconnect", 0, "transactions=%" PRId64, h->id); + return 0; +} + +/* Read data. */ +static int +log_pread (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, void *buf, uint32_t count, uint64_t offs, + uint32_t flags, int *err) +{ + struct handle *h = handle; + uint64_t id = get_id (h); + int r; + + assert (!flags); + output (h, "Read", id, "offset=0x%" PRIx64 " count=0x%x ...", + offs, count); + r = next_ops->pread (nxdata, buf, count, offs, flags, err); + output_return (h, "...Read", id, r, err); + return r; +} + +/* Write data. */ +static int +log_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, const void *buf, uint32_t count, uint64_t offs, + uint32_t flags, int *err) +{ + struct handle *h = handle; + uint64_t id = get_id (h); + int r; + + assert (!(flags & ~NBDKIT_FLAG_FUA)); + output (h, "Write", id, "offset=0x%" PRIx64 " count=0x%x fua=%d ...", + offs, count, !!(flags & NBDKIT_FLAG_FUA)); + r = next_ops->pwrite (nxdata, buf, count, offs, flags, err); + output_return (h, "...Write", id, r, err); + return r; +} + +/* Flush. */ +static int +log_flush (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle, + uint32_t flags, int *err) +{ + struct handle *h = handle; + uint64_t id = get_id (h); + int r; + + assert (!flags); + output (h, "Flush", id, "..."); + r = next_ops->flush (nxdata, flags, err); + output_return (h, "...Flush", id, r, err); + return r; +} + +/* Trim data. */ +static int +log_trim (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offs, uint32_t flags, + int *err) +{ + struct handle *h = handle; + uint64_t id = get_id (h); + int r; + + assert (!(flags & ~NBDKIT_FLAG_FUA)); + output (h, "Trim", id, "offset=0x%" PRIx64 " count=0x%x fua=%d ...", + offs, count, !!(flags & NBDKIT_FLAG_FUA)); + r = next_ops->trim (nxdata, count, offs, flags, err); + output_return (h, "...Trim", id, r, err); + return r; +} + +/* Zero data. */ +static int +log_zero (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offs, uint32_t flags, + int *err) +{ + struct handle *h = handle; + uint64_t id = get_id (h); + int r; + + assert (!(flags & ~(NBDKIT_FLAG_FUA | NBDKIT_FLAG_MAY_TRIM | + NBDKIT_FLAG_FAST_ZERO))); + output (h, "Zero", id, + "offset=0x%" PRIx64 " count=0x%x trim=%d fua=%d fast=%d...", + offs, count, !!(flags & NBDKIT_FLAG_MAY_TRIM), + !!(flags & NBDKIT_FLAG_FUA), + !!(flags & NBDKIT_FLAG_FAST_ZERO)); + r = next_ops->zero (nxdata, count, offs, flags, err); + output_return (h, "...Zero", id, r, err); + return r; +} + +/* Extents. */ +static int +log_extents (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offs, uint32_t flags, + struct nbdkit_extents *extents, int *err) +{ + struct handle *h = handle; + uint64_t id = get_id (h); + int r; + + assert (!(flags & ~(NBDKIT_FLAG_REQ_ONE))); + output (h, "Extents", id, + "offset=0x%" PRIx64 " count=0x%x req_one=%d ...", + offs, count, !!(flags & NBDKIT_FLAG_REQ_ONE)); + r = next_ops->extents (nxdata, count, offs, flags, extents, err); + if (r == -1) + output_return (h, "...Extents", id, r, err); + else { + FILE *fp; + CLEANUP_FREE char *extents_str = NULL; + size_t i, n, len = 0; + + fp = open_memstream (&extents_str, &len); + if (fp != NULL) { + n = nbdkit_extents_count (extents); + for (i = 0; i < n; ++i) { + struct nbdkit_extent e = nbdkit_get_extent (extents, i); + if (i > 0) + fprintf (fp, ", "); + fprintf (fp, "{ offset=0x%" PRIx64 ", length=0x%" PRIx64 ", " + "hole=%d, zero=%d }", + e.offset, e.length, + !!(e.type & NBDKIT_EXTENT_HOLE), + !!(e.type & NBDKIT_EXTENT_ZERO)); + } + + fclose (fp); + } + + output (h, "...Extents", id, "extents=[%s] return=0", + extents_str ? extents_str : "(null)"); + } + return r; +} + +/* Cache data. */ +static int +log_cache (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offs, uint32_t flags, + int *err) +{ + struct handle *h = handle; + uint64_t id = get_id (h); + int r; + + assert (!flags); + output (h, "Cache", id, "offset=0x%" PRIx64 " count=0x%x ...", + offs, count); + r = next_ops->cache (nxdata, count, offs, flags, err); + output_return (h, "...Cache", id, r, err); + return r; +} + +static struct nbdkit_filter filter = { + .name = "log", + .longname = "nbdkit log filter", + .config = log_config, + .config_complete = log_config_complete, + .config_help = log_config_help, + .unload = log_unload, + .get_ready = log_get_ready, + .list_exports = log_list_exports, + .open = log_open, + .close = log_close, + .prepare = log_prepare, + .finalize = log_finalize, + .pread = log_pread, + .pwrite = log_pwrite, + .flush = log_flush, + .trim = log_trim, + .zero = log_zero, + .extents = log_extents, + .cache = log_cache, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/log/nbdkit-log-filter.pod b/filters/log/nbdkit-log-filter.pod new file mode 100644 index 0000000..91838a2 --- /dev/null +++ b/filters/log/nbdkit-log-filter.pod @@ -0,0 +1,108 @@ +=head1 NAME + +nbdkit-log-filter - nbdkit log filter + +=head1 SYNOPSIS + + nbdkit --filter=log plugin logfile=FILE [logappend=BOOL] [plugin-args...] + +=head1 DESCRIPTION + +C is a filter that logs all transactions. When +used as the first filter, it can show the original client requests; as +a later filter, it can show how earlier filters have modified the +original request. The log results are placed in a user-specified +file; for more details on the log format, see L. Note that +using C produces much more verbose logging details to +stderr about every aspect of nbdkit operation, although this requires +running nbdkit in the foreground; while the log filter is designed to +work even when nbdkit is run as a daemon. + +=head1 PARAMETERS + +=over 4 + +=item BFILE + +The file where the log is written. This parameter is required. + +=item B + +=item B + +(nbdkit E 1.8) + +When set to C (the default), if the file already exists it will +be truncated. When set to C, the filter appends to the existing +file. + +=back + +=head1 EXAMPLES + +Serve the file F, and log each client transaction in the +file F: + + nbdkit --filter=log file disk.img logfile=disk.log + +Repeat the task, but with the cow (copy-on-write) filter to perform +local caching of data served from the original plugin: + + nbdkit --filter=cow --filter=log file disk.img logfile=disk.log2 + +After running a client that performs the same operations under each of +the two servers, you can compare F and F to see +the impact of the caching. + +=head1 FILES + +=over 4 + +=item C parameter + +This filter writes to the file specified by the C +parameter. All lines include a timestamp, a connection counter, then +details about the command. The following actions are logged: ListExports, +Connect, Read, Write, Zero, Trim, Extents, Cache, Flush, and Disconnect. +Except for Connect and Disconnect, an event is logged across two lines +for call and return value, to allow tracking duration and tracing any +parallel execution, using id for correlation (incremented per action +on the connection). + +An example logging session of a client that requests an export list +before performing a single successful read is: + + 2020-08-06 02:07:23.080415 ListExports id=1 readonly=0 default_only=0 ... + 2020-08-06 02:07:23.080502 ...ListExports id=1 exports=[""] return=0 + 2020-08-06 02:07:23.080712 connection=1 Connect export='' tls=0 size=0x400 write=1 flush=1 rotational=0 trim=1 zero=2 fua=2 extents=1 cache=2 fast_zero=1 + 2020-08-06 02:07:23.080907 connection=1 Read id=1 offset=0x0 count=0x200 ... + 2020-08-06 02:07:23.080927 connection=1 ...Read id=1 return=0 (Success) + 2020-08-06 02:07:23.081255 connection=1 Disconnect transactions=1 + +=item F<$filterdir/nbdkit-log-filter.so> + +The filter. + +Use C to find the location of C<$filterdir>. + +=back + +=head1 VERSION + +C first appeared in nbdkit 1.4. + +=head1 SEE ALSO + +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Eric Blake + +=head1 COPYRIGHT + +Copyright (C) 2018 Red Hat Inc. diff --git a/filters/nocache/Makefile.am b/filters/nocache/Makefile.am new file mode 100644 index 0000000..c3cb35f --- /dev/null +++ b/filters/nocache/Makefile.am @@ -0,0 +1,63 @@ +# nbdkit +# Copyright (C) 2018-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-nocache-filter.pod + +filter_LTLIBRARIES = nbdkit-nocache-filter.la + +nbdkit_nocache_filter_la_SOURCES = \ + nocache.c \ + $(top_srcdir)/include/nbdkit-filter.h \ + $(NULL) + +nbdkit_nocache_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include \ + $(NULL) +nbdkit_nocache_filter_la_CFLAGS = $(WARNINGS_CFLAGS) +nbdkit_nocache_filter_la_LDFLAGS = \ + -module -avoid-version -shared $(NO_UNDEFINED_ON_WINDOWS) \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms \ + $(NULL) + +if HAVE_POD + +man_MANS = nbdkit-nocache-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-nocache-filter.1: nbdkit-nocache-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/nocache/Makefile.in b/filters/nocache/Makefile.in new file mode 100644 index 0000000..2502343 --- /dev/null +++ b/filters/nocache/Makefile.in @@ -0,0 +1,902 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# nbdkit +# Copyright (C) 2013-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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0000000..de97013 --- /dev/null +++ b/filters/nocache/nbdkit-nocache-filter.pod @@ -0,0 +1,90 @@ +=head1 NAME + +nbdkit-nocache-filter - nbdkit nocache filter + +=head1 SYNOPSIS + + nbdkit --filter=nocache plugin [cachemode=MODE] [plugin-args...] + +=head1 DESCRIPTION + +C is a filter that intentionally disables +efficient handling of advisory client cache requests across the NBD +protocol. It is mainly useful for evaluating timing differences to +determine the impact of caching requests. + +Note that the effects of this filter (in crippling handling of client +cache requests) is somewhat orthogonal from that of the +L (adding local caching of client read/write +requests); the two filters can be run together to experiment with +timings. + +=head1 PARAMETERS + +=over 4 + +=item B + +=item B + +=item B + +Optional, controls which mode the filter will use. Mode B +(default) means that cache support is not advertised to the +client. Mode B means that cache support is emulated by the +filter using the plugin's C callback, regardless of whether the +plugin itself implemented the C callback. Mode B means +that cache requests are always accepted and immediately ignored, +rather than having any actual impact. + +=back + +=head1 EXAMPLES + +Serve the file F, but prevent C requests +altogether, to get a baseline timing of behavior when the client is +unable to make cache requests: + + nbdkit --filter=nocache file disk.img + +Serve the file F, but with cache requests silently ignored, +rather than being forwarded on to the file plugin (which attempts to +use L), to compare against the timings without the +filter and determine whether the file plugin caching was worthwhile: + + nbdkit --filter=nocache file disk.img cachemode=nop + +=head1 FILES + +=over 4 + +=item F<$filterdir/nbdkit-nocache-filter.so> + +The filter. + +Use C to find the location of C<$filterdir>. + +=back + +=head1 VERSION + +C first appeared in nbdkit 1.14. + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Eric Blake + +=head1 COPYRIGHT + +Copyright (C) 2019 Red Hat Inc. diff --git a/filters/nocache/nocache.c b/filters/nocache/nocache.c new file mode 100644 index 0000000..fe11243 --- /dev/null +++ b/filters/nocache/nocache.c @@ -0,0 +1,110 @@ +/* nbdkit + * Copyright (C) 2018-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include + +#include + +#include "minmax.h" + +static enum CacheMode { + NONE, + EMULATE, + NOP, +} cachemode; + +static int +nocache_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + if (strcmp (key, "cachemode") == 0) { + if (strcmp (value, "emulate") == 0) + cachemode = EMULATE; + else if (strcmp (value, "nop") == 0 || + strcmp (value, "no-op") == 0) + cachemode = NOP; + else if (strcmp (value, "none") != 0) { + nbdkit_error ("unknown cachemode '%s'", value); + return -1; + } + return 0; + } + return next (nxdata, key, value); +} + +#define nocache_config_help \ + "cachemode= Either 'none' (default), 'emulate', or 'nop'.\n" \ + +/* Advertise desired FLAG_SEND_CACHE mode. */ +static int +nocache_can_cache (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + switch (cachemode) { + case NONE: + return NBDKIT_CACHE_NONE; + case EMULATE: + return NBDKIT_CACHE_EMULATE; + case NOP: + return NBDKIT_CACHE_NATIVE; + } + abort (); +} + +static int +nocache_cache (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offs, uint32_t flags, + int *err) +{ + assert (cachemode == NOP); + assert (!flags); + + return 0; +} + +static struct nbdkit_filter filter = { + .name = "nocache", + .longname = "nbdkit nocache filter", + .config = nocache_config, + .config_help = nocache_config_help, + .can_cache = nocache_can_cache, + .cache = nocache_cache, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/noextents/Makefile.am b/filters/noextents/Makefile.am new file mode 100644 index 0000000..81e826e --- /dev/null +++ b/filters/noextents/Makefile.am @@ -0,0 +1,62 @@ +# nbdkit +# Copyright (C) 2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-noextents-filter.pod + +filter_LTLIBRARIES = nbdkit-noextents-filter.la + +nbdkit_noextents_filter_la_SOURCES = \ + noextents.c \ + $(top_srcdir)/include/nbdkit-filter.h \ + $(NULL) + +nbdkit_noextents_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + $(NULL) +nbdkit_noextents_filter_la_CFLAGS = $(WARNINGS_CFLAGS) +nbdkit_noextents_filter_la_LDFLAGS = \ + -module -avoid-version -shared $(NO_UNDEFINED_ON_WINDOWS) \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms \ + $(NULL) + +if HAVE_POD + +man_MANS = nbdkit-noextents-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-noextents-filter.1: nbdkit-noextents-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/noextents/Makefile.in b/filters/noextents/Makefile.in new file mode 100644 index 0000000..fe1d1ef --- /dev/null +++ b/filters/noextents/Makefile.in @@ -0,0 +1,901 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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a/filters/noextents/nbdkit-noextents-filter.pod b/filters/noextents/nbdkit-noextents-filter.pod new file mode 100644 index 0000000..0260a5c --- /dev/null +++ b/filters/noextents/nbdkit-noextents-filter.pod @@ -0,0 +1,63 @@ +=head1 NAME + +nbdkit-noextents-filter - disable extents in the underlying plugin + +=head1 SYNOPSIS + + nbdkit --filter=noextents plugin + +=head1 DESCRIPTION + +“Extents” are a feature of the NBD protocol / nbdkit which allow the +client to detect sparse regions of the underlying disk. +C disables this so that the plugin appears to +be fully allocated, at least to a client that requests structured +replies. It is also possible to use the I<--no-sr> option to nbdkit +to prevent the client from using structured replies, which among its +other side effects will prevent the client from querying extents at +all. + +This filter can be useful when combined with L +serving a file from a file system known to have poor C +performance (C is known to be one such system). + +=head1 PARAMETERS + +There are no parameters specific to nbdkit-noextents-filter. Any +parameters are passed through to and processed by the underlying +plugin in the normal way. + +=head1 FILES + +=over 4 + +=item F<$filterdir/nbdkit-noextents-filter.so> + +The filter. + +Use C to find the location of C<$filterdir>. + +=back + +=head1 VERSION + +C first appeared in nbdkit 1.14. + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2019 Red Hat Inc. diff --git a/filters/noextents/noextents.c b/filters/noextents/noextents.c new file mode 100644 index 0000000..e6ac33b --- /dev/null +++ b/filters/noextents/noextents.c @@ -0,0 +1,50 @@ +/* nbdkit + * Copyright (C) 2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include + +static int +noextents_can_extents (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + return 0; +} + +static struct nbdkit_filter filter = { + .name = "noextents", + .longname = "nbdkit noextents filter", + .can_extents = noextents_can_extents, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/nofilter/Makefile.am b/filters/nofilter/Makefile.am new file mode 100644 index 0000000..77ebe33 --- /dev/null +++ b/filters/nofilter/Makefile.am @@ -0,0 +1,63 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-nofilter-filter.pod + +filter_LTLIBRARIES = nbdkit-nofilter-filter.la + +nbdkit_nofilter_filter_la_SOURCES = \ + nofilter.c \ + $(top_srcdir)/include/nbdkit-filter.h \ + $(NULL) + +nbdkit_nofilter_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include \ + $(NULL) +nbdkit_nofilter_filter_la_CFLAGS = $(WARNINGS_CFLAGS) +nbdkit_nofilter_filter_la_LDFLAGS = \ + -module -avoid-version -shared $(NO_UNDEFINED_ON_WINDOWS) \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms \ + $(NULL) + +if HAVE_POD + +man_MANS = nbdkit-nofilter-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-nofilter-filter.1: nbdkit-nofilter-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/nofilter/Makefile.in b/filters/nofilter/Makefile.in new file mode 100644 index 0000000..6fab997 --- /dev/null +++ b/filters/nofilter/Makefile.in @@ -0,0 +1,902 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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b/filters/nofilter/nbdkit-nofilter-filter.pod new file mode 100644 index 0000000..2f577c2 --- /dev/null +++ b/filters/nofilter/nbdkit-nofilter-filter.pod @@ -0,0 +1,41 @@ +=head1 NAME + +nbdkit-nofilter-filter - nbdkit passthrough filter + +=head1 SYNOPSIS + + nbdkit --filter=nofilter plugin [plugin-args...] + +=head1 DESCRIPTION + +C passes through requests unchanged. +It is mostly used for testing nbdkit. + +=head1 FILES + +=over 4 + +=item F<$filterdir/nbdkit-nofilter-filter.so> + +The filter. + +Use C to find the location of C<$filterdir>. + +=back + +=head1 VERSION + +C first appeared in nbdkit 1.18. + +=head1 SEE ALSO + +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2019 Red Hat Inc. diff --git a/filters/nofilter/nofilter.c b/filters/nofilter/nofilter.c new file mode 100644 index 0000000..d76ea8a --- /dev/null +++ b/filters/nofilter/nofilter.c @@ -0,0 +1,42 @@ +/* nbdkit + * Copyright (C) 2018-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include + +static struct nbdkit_filter filter = { + .name = "nofilter", + .longname = "nbdkit nofilter filter", +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/noparallel/Makefile.am b/filters/noparallel/Makefile.am new file mode 100644 index 0000000..fc5a552 --- /dev/null +++ b/filters/noparallel/Makefile.am @@ -0,0 +1,63 @@ +# nbdkit +# Copyright (C) 2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-noparallel-filter.pod + +filter_LTLIBRARIES = nbdkit-noparallel-filter.la + +nbdkit_noparallel_filter_la_SOURCES = \ + noparallel.c \ + $(top_srcdir)/include/nbdkit-filter.h \ + $(NULL) + +nbdkit_noparallel_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include \ + $(NULL) +nbdkit_noparallel_filter_la_CFLAGS = $(WARNINGS_CFLAGS) +nbdkit_noparallel_filter_la_LDFLAGS = \ + -module -avoid-version -shared $(NO_UNDEFINED_ON_WINDOWS) \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms \ + $(NULL) + +if HAVE_POD + +man_MANS = nbdkit-noparallel-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-noparallel-filter.1: nbdkit-noparallel-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/noparallel/Makefile.in b/filters/noparallel/Makefile.in new file mode 100644 index 0000000..ef5c204 --- /dev/null +++ b/filters/noparallel/Makefile.in @@ -0,0 +1,902 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/filters/noparallel/nbdkit-noparallel-filter.pod b/filters/noparallel/nbdkit-noparallel-filter.pod new file mode 100644 index 0000000..16861ad --- /dev/null +++ b/filters/noparallel/nbdkit-noparallel-filter.pod @@ -0,0 +1,89 @@ +=head1 NAME + +nbdkit-noparallel-filter - nbdkit noparallel filter + +=head1 SYNOPSIS + + nbdkit --filter=noparallel plugin [serialize=MODE] [plugin-args...] + +=head1 DESCRIPTION + +C is a filter that intentionally disables +parallelism in handling requests from clients. It is mainly useful for +evaluating timing differences between various levels of parallelism. +It can also be used as a way to work around any bugs in a plugin's +claimed level of parallel support, without recompiling the plugin, or +to ease efforts when connecting with a client that can batch up +several requests but is not prepared to handle out-of-order replies. + +To limit the number of concurrent clients it's usually better to use +L. + +=head1 PARAMETERS + +=over 4 + +=item B + +=item B + +=item B + +Optional, controls how much serialization the filter will +enforce. Mode B (default) prevents a single client from +having more than one in-flight request, but does not prevent parallel +requests from a second connection (if the plugin supports that). Mode +B is stricter, enforcing that at most one request +(regardless of connection) will be active, but does not prevent +parallel connections (if the plugin supports that). Mode +B is strictest, where there can be at most one client at +a time, and where the server will no longer advertise +C to clients. + +=back + +=head1 EXAMPLES + +Serve the file F, but disallow out-of-order transaction +completion to a given client: + + nbdkit --filter=noparallel file disk.img + +Serve the file F, but allowing only one client at a time: + + nbdkit --filter=noparallel file serialize=connections disk.img + +=head1 FILES + +=over 4 + +=item F<$filterdir/nbdkit-noparallel-filter.so> + +The filter. + +Use C to find the location of C<$filterdir>. + +=back + +=head1 VERSION + +C first appeared in nbdkit 1.14. + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Eric Blake + +=head1 COPYRIGHT + +Copyright (C) 2018-2020 Red Hat Inc. diff --git a/filters/noparallel/noparallel.c b/filters/noparallel/noparallel.c new file mode 100644 index 0000000..f9006c0 --- /dev/null +++ b/filters/noparallel/noparallel.c @@ -0,0 +1,84 @@ +/* nbdkit + * Copyright (C) 2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include + +#include + +static int thread_model = NBDKIT_THREAD_MODEL_SERIALIZE_REQUESTS; + +static int +noparallel_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + if (strcmp (key, "serialize") == 0 || + strcmp (key, "serialise") == 0) { + if (strcmp (value, "connections") == 0) + thread_model = NBDKIT_THREAD_MODEL_SERIALIZE_CONNECTIONS; + else if (strcmp (value, "all_requests") == 0 || + strcmp (value, "all-requests") == 0) + thread_model = NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS; + else if (strcmp (value, "requests") != 0) { + nbdkit_error ("unknown noparallel serialize mode '%s'", value); + return -1; + } + return 0; + } + return next (nxdata, key, value); +} + +#define noparallel_config_help \ + "serialize= 'requests' (default), 'all-requests', or 'connections'.\n" \ + +/* Apply runtime reduction to thread model. */ +static int +noparallel_thread_model (void) +{ + return thread_model; +} + +static struct nbdkit_filter filter = { + .name = "noparallel", + .longname = "nbdkit noparallel filter", + .config = noparallel_config, + .config_help = noparallel_config_help, + .thread_model = noparallel_thread_model, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/nozero/Makefile.am b/filters/nozero/Makefile.am new file mode 100644 index 0000000..ab7abf4 --- /dev/null +++ b/filters/nozero/Makefile.am @@ -0,0 +1,63 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-nozero-filter.pod + +filter_LTLIBRARIES = nbdkit-nozero-filter.la + +nbdkit_nozero_filter_la_SOURCES = \ + nozero.c \ + $(top_srcdir)/include/nbdkit-filter.h \ + $(NULL) + +nbdkit_nozero_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include \ + $(NULL) +nbdkit_nozero_filter_la_CFLAGS = $(WARNINGS_CFLAGS) +nbdkit_nozero_filter_la_LDFLAGS = \ + -module -avoid-version -shared $(NO_UNDEFINED_ON_WINDOWS) \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms \ + $(NULL) + +if HAVE_POD + +man_MANS = nbdkit-nozero-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-nozero-filter.1: nbdkit-nozero-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/nozero/Makefile.in b/filters/nozero/Makefile.in new file mode 100644 index 0000000..9d510fe --- /dev/null +++ b/filters/nozero/Makefile.in @@ -0,0 +1,901 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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+++ b/filters/nozero/nbdkit-nozero-filter.pod @@ -0,0 +1,144 @@ +=head1 NAME + +nbdkit-nozero-filter - nbdkit nozero filter + +=head1 SYNOPSIS + + nbdkit --filter=nozero plugin [plugin-args...] \ + [zeromode=MODE] [fastzeromode=MODE] + +=head1 DESCRIPTION + +C is a filter that intentionally disables +efficient handling of sparse file holes (ranges of all-zero bytes) +across the NBD protocol. It is mainly useful for evaluating timing +differences between naive vs. sparse-aware connections, and for +testing client or server fallbacks. + +=head1 PARAMETERS + +The parameters C and C are optional and +control which mode the filter will use. + +=over 4 + +=item B + +Zero support is not advertised to the client; clients must explicitly +write any regions of zero like any other normal write. + +This is the default if the C parameter is not specified. + +=item B + +Zero support is advertised, but emulated by the filter by using the +plugin's C callback, regardless of whether the plugin itself +has a more efficient CC callback. + +=item B + +(nbdkit E 1.14) + +Zero requests are forwarded on to the plugin, except that the plugin +will never see the C flag. This can help determine +if the client permitting trimming during zero operations makes a +difference. It is an error to request this mode if the plugin lacks +the C callback. + +=item B + +(nbdkit E 1.16) + +Zero requests are forwarded on to the plugin, unchanged by the filter; +this mode is helpful when experimenting with the C +parameter. It is an error to request this mode if the plugin lacks +the C callback. + +=item B + +(nbdkit E 1.16) + +Support for fast zeroing is not advertised to the client. + +=item B + +(nbdkit E 1.16) + +Fast zero support is advertised to the client, but all fast zero +requests result in an immediate C failure rather than +performing any fallback attempts. + +=item B + +(nbdkit E 1.16) + +B: Fast zero support is advertised to the client, +but all fast zero requests behave as if the fast zero flag had not +been included. This behavior is typically contrary to the NBD +specification, but can be useful for comparison against the actual +fast zero implementation to see if fast zeroes make a difference. + +=item B + +(nbdkit E 1.16) + +This mode is the default. When paired with C, fast +zeroes are advertised but fast zero requests always fail (similar to +C); when paired with C or C, +fast zero support is left to the plugin (although in the latter case, +the nozero filter could be omitted for the same behavior). + +=back + +=head1 EXAMPLES + +Serve the file F, but force the client to write zeroes +explicitly rather than with C: + + nbdkit --filter=nozero file disk.img + +Serve the file F, allowing the client to take advantage of +less network traffic via C, but fail any fast +zero requests up front and force all other zero requests to write data +explicitly rather than punching any holes: + + nbdkit --filter=nozero file zeromode=emulate disk.img + +Serve the file F, but do not advertise fast zero support to +the client even if the plugin supports it: + + nbdkit --filter=nozero file zeromode=plugin fastzeromode=none disk.img + +=head1 FILES + +=over 4 + +=item F<$filterdir/nbdkit-nozero-filter.so> + +The filter. + +Use C to find the location of C<$filterdir>. + +=back + +=head1 VERSION + +C first appeared in nbdkit 1.4. + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Eric Blake + +=head1 COPYRIGHT + +Copyright (C) 2018-2020 Red Hat Inc. diff --git a/filters/nozero/nozero.c b/filters/nozero/nozero.c new file mode 100644 index 0000000..d14b248 --- /dev/null +++ b/filters/nozero/nozero.c @@ -0,0 +1,214 @@ +/* nbdkit + * Copyright (C) 2018-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "minmax.h" + +#define MAX_WRITE (64 * 1024 * 1024) + +static enum ZeroMode { + NONE, + EMULATE, + NOTRIM, + PLUGIN, +} zeromode; + +static enum FastZeroMode { + DEFAULT, + SLOW, + IGNORE, + NOFAST, +} fastzeromode; + +static int +nozero_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + if (strcmp (key, "zeromode") == 0) { + if (strcmp (value, "emulate") == 0) + zeromode = EMULATE; + else if (strcmp (value, "notrim") == 0) + zeromode = NOTRIM; + else if (strcmp (value, "plugin") == 0) + zeromode = PLUGIN; + else if (strcmp (value, "none") != 0) { + nbdkit_error ("unknown zeromode '%s'", value); + return -1; + } + return 0; + } + + if (strcmp (key, "fastzeromode") == 0) { + if (strcmp (value, "none") == 0) + fastzeromode = NOFAST; + else if (strcmp (value, "ignore") == 0) + fastzeromode = IGNORE; + else if (strcmp (value, "slow") == 0) + fastzeromode = SLOW; + else if (strcmp (value, "default") != 0) { + nbdkit_error ("unknown fastzeromode '%s'", value); + return -1; + } + return 0; + } + + return next (nxdata, key, value); +} + +#define nozero_config_help \ + "zeromode= One of 'none' (default), 'emulate', 'notrim', 'plugin'.\n" \ + "fastzeromode= One of 'default', 'none', 'slow', 'ignore'.\n" + +/* Check that desired mode is supported by plugin. */ +static int +nozero_prepare (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle, + int readonly) +{ + int r; + + /* If we are opened readonly, this filter has no impact */ + if (readonly) + return 0; + + if (zeromode == NOTRIM || zeromode == PLUGIN) { + r = next_ops->can_zero (nxdata); + if (r == -1) + return -1; + if (!r) { + nbdkit_error ("zeromode '%s' requires plugin zero support", + zeromode == NOTRIM ? "notrim" : "plugin"); + return -1; + } + } + return 0; +} + +/* Advertise desired WRITE_ZEROES mode. */ +static int +nozero_can_zero (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle) +{ + switch (zeromode) { + case NONE: + return NBDKIT_ZERO_NONE; + case EMULATE: + return NBDKIT_ZERO_EMULATE; + default: + return next_ops->can_zero (nxdata); + } +} + +/* Advertise desired FAST_ZERO mode. */ +static int +nozero_can_fast_zero (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + if (zeromode == NONE) + return 0; + if (zeromode != EMULATE && fastzeromode == DEFAULT) + return next_ops->can_fast_zero (nxdata); + return fastzeromode != NOFAST; +} + +static int +nozero_zero (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offs, uint32_t flags, + int *err) +{ + int writeflags = 0; + bool need_flush = false; + + assert (zeromode != NONE); + if (flags & NBDKIT_FLAG_FAST_ZERO) { + assert (fastzeromode != NOFAST); + if (fastzeromode == SLOW || + (fastzeromode == DEFAULT && zeromode == EMULATE)) { + *err = ENOTSUP; + return -1; + } + if (fastzeromode == IGNORE) + flags &= ~NBDKIT_FLAG_FAST_ZERO; + } + + if (zeromode == NOTRIM) + flags &= ~NBDKIT_FLAG_MAY_TRIM; + + if (zeromode != EMULATE) + return next_ops->zero (nxdata, count, offs, flags, err); + + if (flags & NBDKIT_FLAG_FUA) { + if (next_ops->can_fua (nxdata) == NBDKIT_FUA_EMULATE) + need_flush = true; + else + writeflags = NBDKIT_FLAG_FUA; + } + + while (count) { + /* Always contains zeroes, but we can't use const or else gcc 9 + * will use .rodata instead of .bss and inflate the binary size. + */ + static /* const */ char buffer[MAX_WRITE]; + uint32_t size = MIN (count, MAX_WRITE); + + if (size == count && need_flush) + writeflags = NBDKIT_FLAG_FUA; + + if (next_ops->pwrite (nxdata, buffer, size, offs, writeflags, err) == -1) + return -1; + offs += size; + count -= size; + } + return 0; +} + +static struct nbdkit_filter filter = { + .name = "nozero", + .longname = "nbdkit nozero filter", + .config = nozero_config, + .config_help = nozero_config_help, + .prepare = nozero_prepare, + .can_zero = nozero_can_zero, + .can_fast_zero = nozero_can_fast_zero, + .zero = nozero_zero, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/offset/Makefile.am b/filters/offset/Makefile.am new file mode 100644 index 0000000..a579b8c --- /dev/null +++ b/filters/offset/Makefile.am @@ -0,0 +1,66 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-offset-filter.pod + +filter_LTLIBRARIES = nbdkit-offset-filter.la + +nbdkit_offset_filter_la_SOURCES = \ + offset.c \ + $(top_srcdir)/include/nbdkit-filter.h \ + $(NULL) + +nbdkit_offset_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/utils \ + $(NULL) +nbdkit_offset_filter_la_CFLAGS = $(WARNINGS_CFLAGS) +nbdkit_offset_filter_la_LDFLAGS = \ + -module -avoid-version -shared $(NO_UNDEFINED_ON_WINDOWS) \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms \ + $(NULL) +nbdkit_offset_filter_la_LIBADD = \ + $(top_builddir)/common/utils/libutils.la \ + $(NULL) + +if HAVE_POD + +man_MANS = nbdkit-offset-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-offset-filter.1: nbdkit-offset-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/offset/Makefile.in b/filters/offset/Makefile.in new file mode 100644 index 0000000..58e18d5 --- /dev/null +++ b/filters/offset/Makefile.in @@ -0,0 +1,907 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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b/filters/offset/nbdkit-offset-filter.pod new file mode 100644 index 0000000..19df174 --- /dev/null +++ b/filters/offset/nbdkit-offset-filter.pod @@ -0,0 +1,98 @@ +=head1 NAME + +nbdkit-offset-filter - nbdkit offset filter + +=head1 SYNOPSIS + + nbdkit --filter=offset plugin offset=OFFSET range=LENGTH [plugin-args...] + +=head1 DESCRIPTION + +C is a filter that limits requests to the byte +range C<[offset .. offset+range-1]> within another plugin. + +=head1 PARAMETERS + +=over 4 + +=item BOFFSET + +The start offset. The offset must be E 0. + +This parameter is optional. If not given then C is assumed. + +=item BLENGTH + +The length of data to serve. + +This parameter is optional. If not given then the range is served +starting from the offset through to the end of the underlying +file/device. + +=back + +Note it is an error if the offset and/or range specify data which lies +beyond the end of the underlying device. Use +L to truncate or extend the size of +plugins. + +=head1 EXAMPLES + +=head2 Serve part of a file + +Using L, serve the file C starting at +offset C<1M>. The total length served is C<100M> (the underlying file +must therefore be at least C<101M> in length): + + nbdkit --filter=offset file disk.img offset=1M range=100M + +=head2 Serve a single partition + +I.> + +One way to serve a single partition from a disk is to find the start +and length of the partition, eg using: + + $ parted disk.img -- unit b print + ... + Number Start End Size Type File system Flags + 1 65536B 104792575B 104727040B primary ext2 + +You can then serve the partition only using: + + nbdkit --filter=offset file disk.img offset=65536 range=104727040 + +=head1 FILES + +=over 4 + +=item F<$filterdir/nbdkit-offset-filter.so> + +The filter. + +Use C to find the location of C<$filterdir>. + +=back + +=head1 VERSION + +C first appeared in nbdkit 1.2. + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Eric Blake + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2018 Red Hat Inc. diff --git a/filters/offset/offset.c b/filters/offset/offset.c new file mode 100644 index 0000000..ae1ce23 --- /dev/null +++ b/filters/offset/offset.c @@ -0,0 +1,194 @@ +/* nbdkit + * Copyright (C) 2018-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include + +#include + +#include "cleanup.h" + +static int64_t offset = 0, range = -1; + +/* Called for each key=value passed on the command line. */ +static int +offset_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + if (strcmp (key, "offset") == 0) { + offset = nbdkit_parse_size (value); + if (offset == -1) + return -1; + return 0; + } + else if (strcmp (key, "range") == 0) { + range = nbdkit_parse_size (value); + if (range == -1) + return -1; + return 0; + } + else + return next (nxdata, key, value); +} + +#define offset_config_help \ + "offset= The start offset to serve (default 0).\n" \ + "range= The total size to serve (default rest of file)." + +/* Get the file size. */ +static int64_t +offset_get_size (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + int64_t real_size = next_ops->get_size (nxdata); + + if (real_size == -1) + return -1; + + if (range >= 0) { + if (offset > real_size - range) { + nbdkit_error ("offset+range (%" PRIi64 "+%" PRIi64 ") " + "is larger than the real size (%" PRIi64 ") " + "of the underlying file or device", + offset, range, real_size); + return -1; + } + return range; + } + else if (offset > real_size) { + nbdkit_error ("offset (%" PRIi64 ") " + "is larger than the real size (%" PRIi64 ") " + "of the underlying file or device", + offset, real_size); + return -1; + } + else + return real_size - offset; +} + +/* Read data. */ +static int +offset_pread (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, void *buf, uint32_t count, uint64_t offs, + uint32_t flags, int *err) +{ + return next_ops->pread (nxdata, buf, count, offs + offset, flags, err); +} + +/* Write data. */ +static int +offset_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, + const void *buf, uint32_t count, uint64_t offs, uint32_t flags, + int *err) +{ + return next_ops->pwrite (nxdata, buf, count, offs + offset, flags, err); +} + +/* Trim data. */ +static int +offset_trim (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offs, uint32_t flags, + int *err) +{ + return next_ops->trim (nxdata, count, offs + offset, flags, err); +} + +/* Zero data. */ +static int +offset_zero (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offs, uint32_t flags, + int *err) +{ + return next_ops->zero (nxdata, count, offs + offset, flags, err); +} + +/* Extents. */ +static int +offset_extents (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offs, uint32_t flags, + struct nbdkit_extents *extents, int *err) +{ + size_t i; + CLEANUP_EXTENTS_FREE struct nbdkit_extents *extents2 = NULL; + struct nbdkit_extent e; + int64_t end = range >= 0 ? offset + range : next_ops->get_size (nxdata); + + extents2 = nbdkit_extents_new (offs + offset, end); + if (extents2 == NULL) { + *err = errno; + return -1; + } + if (next_ops->extents (nxdata, count, offs + offset, + flags, extents2, err) == -1) + return -1; + + for (i = 0; i < nbdkit_extents_count (extents2); ++i) { + e = nbdkit_get_extent (extents2, i); + e.offset -= offset; + if (nbdkit_add_extent (extents, e.offset, e.length, e.type) == -1) { + *err = errno; + return -1; + } + } + return 0; +} + +/* Cache data. */ +static int +offset_cache (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offs, uint32_t flags, + int *err) +{ + return next_ops->cache (nxdata, count, offs + offset, flags, err); +} + +static struct nbdkit_filter filter = { + .name = "offset", + .longname = "nbdkit offset filter", + .config = offset_config, + .config_help = offset_config_help, + .get_size = offset_get_size, + .pread = offset_pread, + .pwrite = offset_pwrite, + .trim = offset_trim, + .zero = offset_zero, + .extents = offset_extents, + .cache = offset_cache, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/partition/Makefile.am b/filters/partition/Makefile.am new file mode 100644 index 0000000..49e3e21 --- /dev/null +++ b/filters/partition/Makefile.am @@ -0,0 +1,71 @@ +# nbdkit +# Copyright (C) 2018-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-partition-filter.pod + +filter_LTLIBRARIES = nbdkit-partition-filter.la + +nbdkit_partition_filter_la_SOURCES = \ + partition.c \ + partition.h \ + partition-gpt.c \ + partition-mbr.c \ + $(top_srcdir)/include/nbdkit-filter.h \ + $(NULL) + +nbdkit_partition_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/gpt \ + -I$(top_srcdir)/common/include \ + -I$(top_srcdir)/common/utils \ + $(NULL) +nbdkit_partition_filter_la_CFLAGS = $(WARNINGS_CFLAGS) +nbdkit_partition_filter_la_LDFLAGS = \ + -module -avoid-version -shared $(NO_UNDEFINED_ON_WINDOWS) \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms \ + $(NULL) +nbdkit_partition_filter_la_LIBADD = \ + $(top_builddir)/common/utils/libutils.la \ + $(NULL) + +if HAVE_POD + +man_MANS = nbdkit-partition-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-partition-filter.1: nbdkit-partition-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/partition/Makefile.in b/filters/partition/Makefile.in new file mode 100644 index 0000000..87590a6 --- /dev/null +++ b/filters/partition/Makefile.in @@ -0,0 +1,937 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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tags tags-am uninstall \ + uninstall-am uninstall-filterLTLIBRARIES uninstall-man \ + uninstall-man1 + +.PRECIOUS: Makefile + + +@HAVE_POD_TRUE@nbdkit-partition-filter.1: nbdkit-partition-filter.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/filters/partition/nbdkit-partition-filter.pod b/filters/partition/nbdkit-partition-filter.pod new file mode 100644 index 0000000..7a36674 --- /dev/null +++ b/filters/partition/nbdkit-partition-filter.pod @@ -0,0 +1,75 @@ +=head1 NAME + +nbdkit-partition-filter - nbdkit partition filter + +=head1 SYNOPSIS + + nbdkit --filter=partition plugin partition=PART [plugin-args...] + +=head1 DESCRIPTION + +C is a filter that limits requests to a +single partition within a disk image that is served by another plugin. + +Partition numbers are specified by the required C +parameter, and count from 1. + +This works like the C option. + +The opposite of this filter is L which +adds a virtual partition table to a file or files. + +=head1 PARAMETERS + +=over 4 + +=item BPART + +The partition number to serve, counting from 1. + +This parameter is required. + +=back + +=head1 EXAMPLE + +F is a partitioned disk image (eg. a virtual machine disk +image). To serve the first partition only use: + + nbdkit --filter=partition file disk.img partition=1 + +=head1 FILES + +=over 4 + +=item F<$filterdir/nbdkit-partition-filter.so> + +The filter. + +Use C to find the location of C<$filterdir>. + +=back + +=head1 VERSION + +C first appeared in nbdkit 1.2. + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Eric Blake + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2018 Red Hat Inc. diff --git a/filters/partition/partition-gpt.c b/filters/partition/partition-gpt.c new file mode 100644 index 0000000..f2ff211 --- /dev/null +++ b/filters/partition/partition-gpt.c @@ -0,0 +1,120 @@ +/* nbdkit + * Copyright (C) 2018-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include + +#include + +#include "byte-swapping.h" +#include "gpt.h" + +#include "partition.h" + +static void +get_gpt_header (uint8_t *sector, + uint32_t *nr_partition_entries, + uint32_t *size_partition_entry) +{ + struct gpt_header *header = (struct gpt_header *) sector; + *nr_partition_entries = le32toh (header->nr_partition_entries); + *size_partition_entry = le32toh (header->size_partition_entry); +} + +static void +get_gpt_partition (uint8_t *bytes, + uint8_t *partition_type_guid, + uint64_t *first_lba, uint64_t *last_lba) +{ + struct gpt_entry *entry = (struct gpt_entry *) bytes; + memcpy (partition_type_guid, entry->partition_type_guid, 16); + *first_lba = le64toh (entry->first_lba); + *last_lba = le64toh (entry->last_lba); +} + +int +find_gpt_partition (struct nbdkit_next_ops *next_ops, void *nxdata, + int64_t size, uint8_t *header_bytes, + int64_t *offset_r, int64_t *range_r) +{ + uint8_t partition_bytes[128]; + uint32_t nr_partition_entries, size_partition_entry; + uint8_t partition_type_guid[16]; + uint64_t first_lba, last_lba; + int i; + int err; + + get_gpt_header (header_bytes, &nr_partition_entries, &size_partition_entry); + if (partnum > nr_partition_entries) { + nbdkit_error ("GPT partition number out of range"); + return -1; + } + + if (size_partition_entry < 128) { + nbdkit_error ("GPT partition entry size is < 128 bytes"); + return -1; + } + + /* Check the disk is large enough to contain the partition table + * array (twice) plus other GPT overheads. Otherwise it is likely + * that the GPT header is bogus. + */ + if (size < INT64_C(3)*SECTOR_SIZE + + INT64_C(2) * nr_partition_entries * size_partition_entry) { + nbdkit_error ("GPT partition table is too large for this disk"); + return -1; + } + + for (i = 0; i < nr_partition_entries; ++i) { + /* We already checked these are within bounds above. */ + if (next_ops->pread (nxdata, partition_bytes, sizeof partition_bytes, + 2*SECTOR_SIZE + i*size_partition_entry, 0, + &err) == -1) + return -1; + get_gpt_partition (partition_bytes, + partition_type_guid, &first_lba, &last_lba); + if (memcmp (partition_type_guid, + "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 16) != 0 && + partnum == i+1) { + *offset_r = first_lba * SECTOR_SIZE; + *range_r = (1 + last_lba - first_lba) * SECTOR_SIZE; + return 0; + } + } + + nbdkit_error ("GPT partition %d not found", partnum); + return -1; +} diff --git a/filters/partition/partition-mbr.c b/filters/partition/partition-mbr.c new file mode 100644 index 0000000..22532ef --- /dev/null +++ b/filters/partition/partition-mbr.c @@ -0,0 +1,193 @@ +/* nbdkit + * Copyright (C) 2018-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include + +#include + +#include "byte-swapping.h" +#include "isaligned.h" + +#include "partition.h" + +/* See also linux.git/block/partitions/msdos.c:is_extended_partition */ +#define is_extended(byte) ((byte) == 0x5 || (byte) == 0xf || (byte) == 0x85) + +struct mbr_partition { + uint8_t part_type_byte; + uint32_t start_sector; + uint32_t nr_sectors; +}; + +static void +get_mbr_partition (uint8_t *sector, int i, struct mbr_partition *part) +{ + int offset = 0x1BE + i*0x10; + + part->part_type_byte = sector[offset+4]; + memcpy (&part->start_sector, §or[offset+8], 4); + part->start_sector = le32toh (part->start_sector); + memcpy (&part->nr_sectors, §or[offset+0xC], 4); + part->nr_sectors = le32toh (part->nr_sectors); +} + +int +find_mbr_partition (struct nbdkit_next_ops *next_ops, void *nxdata, + int64_t size, uint8_t *mbr, + int64_t *offset_r, int64_t *range_r) +{ + int i; + struct mbr_partition partition; + uint32_t ep_start_sector, ep_nr_sectors; + uint64_t ebr, next_ebr; + uint8_t sector[SECTOR_SIZE]; + + /* Primary partition. */ + if (partnum <= 4) { + for (i = 0; i < 4; ++i) { + get_mbr_partition (mbr, i, &partition); + if (partition.nr_sectors > 0 && + partition.part_type_byte != 0 && + !is_extended (partition.part_type_byte) && + partnum == i+1) { + *offset_r = partition.start_sector * (int64_t) SECTOR_SIZE; + *range_r = partition.nr_sectors * (int64_t) SECTOR_SIZE; + return 0; + } + } + + /* Not found falls through to error case at the end of the function. */ + } + + /* Logical partition. */ + else { + /* Find the extended partition in the primary partition table. */ + for (i = 0; i < 4; ++i) { + get_mbr_partition (mbr, i, &partition); + if (partition.nr_sectors > 0 && + is_extended (partition.part_type_byte)) { + goto found_extended; + } + } + nbdkit_error ("MBR logical partition selected, " + "but there is no extended partition in the partition table"); + return -1; + + found_extended: + ep_start_sector = partition.start_sector; + ep_nr_sectors = partition.nr_sectors; + ebr = ep_start_sector * (uint64_t)SECTOR_SIZE; + + /* This loop will terminate eventually because we only accept + * links which strictly increase the EBR pointer. There are valid + * partition tables which do odd things like arranging the + * partitions in reverse order, but we will not accept them here. + */ + for (i = 5; ; ++i) { + /* Check that the ebr is aligned and pointing inside the disk + * and doesn't point to the MBR. + */ + if (!IS_ALIGNED (ebr, SECTOR_SIZE) || + ebr < SECTOR_SIZE || ebr >= size-SECTOR_SIZE) { + nbdkit_error ("invalid EBR chain: " + "next EBR boot sector is located outside disk boundary"); + return -1; + } + + /* Read the EBR sector. */ + nbdkit_debug ("partition: reading EBR at %" PRIi64, ebr); + if (next_ops->pread (nxdata, sector, sizeof sector, ebr, 0, + &errno) == -1) + return -1; + + if (partnum == i) { + uint64_t offset, range; + + /* First entry in EBR points to the logical partition. */ + get_mbr_partition (sector, 0, &partition); + + /* The first entry start sector is relative to the EBR. */ + offset = ebr + partition.start_sector * (uint64_t)SECTOR_SIZE; + range = partition.nr_sectors * (uint64_t)SECTOR_SIZE; + + /* Logical partition cannot be before the corresponding EBR, + * and it cannot extend beyond the enclosing extended + * partition. + */ + if (offset <= ebr || + offset + range > + ((uint64_t)ep_start_sector + ep_nr_sectors) * SECTOR_SIZE) { + nbdkit_error ("logical partition start or size out of range " + "(offset=%" PRIu64 ", range=%" PRIu64 ", " + "ep:startsect=%" PRIu32 ", ep:nrsects=%" PRIu32 ")", + offset, range, ep_start_sector, ep_nr_sectors); + return -1; + } + *offset_r = offset; + *range_r = range; + return 0; + } + + /* Second entry in EBR links to the next EBR. */ + get_mbr_partition (sector, 1, &partition); + + /* All zeroes means the end of the chain. */ + if (partition.start_sector == 0 && partition.nr_sectors == 0) + break; + + /* The second entry start sector is relative to the start to the + * extended partition. + */ + next_ebr = + ((uint64_t)ep_start_sector + partition.start_sector) * SECTOR_SIZE; + + /* Make sure the next EBR > current EBR. */ + if (next_ebr <= ebr) { + nbdkit_error ("invalid EBR chain: " + "next EBR %" PRIu64 " <= current EBR %" PRIu64, + next_ebr, ebr); + return -1; + } + ebr = next_ebr; + } + } + + nbdkit_error ("MBR partition %d not found", partnum); + return -1; +} diff --git a/filters/partition/partition.c b/filters/partition/partition.c new file mode 100644 index 0000000..849f0cc --- /dev/null +++ b/filters/partition/partition.c @@ -0,0 +1,286 @@ +/* nbdkit + * Copyright (C) 2018-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include + +#include + +#include "byte-swapping.h" +#include "cleanup.h" + +#include "partition.h" + +unsigned partnum = 0; + +/* Called for each key=value passed on the command line. */ +static int +partition_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + if (strcmp (key, "partition") == 0) { + if (nbdkit_parse_unsigned ("partition", value, &partnum) == -1) + return -1; + if (partnum == 0) { + nbdkit_error ("invalid partition number"); + return -1; + } + return 0; + } + else + return next (nxdata, key, value); +} + +/* Check the user did pass partition number. */ +static int +partition_config_complete (nbdkit_next_config_complete *next, void *nxdata) +{ + if (partnum == 0) { + nbdkit_error ("you must supply the partition parameter on the command line"); + return -1; + } + + return next (nxdata); +} + +#define partition_config_help \ + "partition= (required) The partition number (counting from 1)." + +struct handle { + int64_t offset; + int64_t range; +}; + +/* Open a connection. */ +static void * +partition_open (nbdkit_next_open *next, void *nxdata, + int readonly, const char *exportname, int is_tls) +{ + struct handle *h; + + if (next (nxdata, readonly, exportname) == -1) + return NULL; + + h = malloc (sizeof *h); + if (h == NULL) { + nbdkit_error ("malloc: %m"); + return NULL; + } + + /* These are set in the prepare method. */ + h->offset = h->range = -1; + return h; +} + +static void +partition_close (void *handle) +{ + struct handle *h = handle; + + free (h); +} + +static int +partition_prepare (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, int readonly) +{ + struct handle *h = handle; + int64_t size; + uint8_t lba01[2*SECTOR_SIZE]; /* LBA 0 and 1 */ + int r; + int err; + + size = next_ops->get_size (nxdata); + if (size == -1) + return -1; + if (size < 2 * SECTOR_SIZE) { + nbdkit_error ("disk is too small to be a partitioned disk"); + return -1; + } + + nbdkit_debug ("disk size=%" PRIi64, size); + + if (next_ops->pread (nxdata, lba01, sizeof lba01, 0, 0, &err) == -1) + return -1; + + /* Is it GPT? */ + if (size >= 2 * 34 * SECTOR_SIZE && + memcmp (&lba01[SECTOR_SIZE], "EFI PART", 8) == 0) + r = find_gpt_partition (next_ops, nxdata, size, &lba01[SECTOR_SIZE], + &h->offset, &h->range); + /* Is it MBR? */ + else if (lba01[0x1fe] == 0x55 && lba01[0x1ff] == 0xAA) + r = find_mbr_partition (next_ops, nxdata, size, lba01, + &h->offset, &h->range); + else { + nbdkit_error ("disk does not contain MBR or GPT partition table signature"); + r = -1; + } + if (r == -1) + return -1; + + /* The find_*_partition functions set h->offset & h->range to the + * partition boundaries. We additionally check that they are inside + * the underlying disk. + */ + if (h->offset < 0 || h->range < 0 || h->offset + h->range > size) { + nbdkit_error ("partition is outside the disk"); + return -1; + } + + nbdkit_debug ("partition offset=%" PRIi64 " range=%" PRIi64, + h->offset, h->range); + + return 0; +} + +/* Get the file size. */ +static int64_t +partition_get_size (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + struct handle *h = handle; + + return h->range; +} + +/* Read data. */ +static int +partition_pread (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, void *buf, uint32_t count, uint64_t offs, + uint32_t flags, int *err) +{ + struct handle *h = handle; + + return next_ops->pread (nxdata, buf, count, offs + h->offset, flags, err); +} + +/* Write data. */ +static int +partition_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, + const void *buf, uint32_t count, uint64_t offs, + uint32_t flags, int *err) +{ + struct handle *h = handle; + + return next_ops->pwrite (nxdata, buf, count, offs + h->offset, flags, err); +} + +/* Trim data. */ +static int +partition_trim (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offs, uint32_t flags, + int *err) +{ + struct handle *h = handle; + + return next_ops->trim (nxdata, count, offs + h->offset, flags, err); +} + +/* Zero data. */ +static int +partition_zero (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offs, uint32_t flags, + int *err) +{ + struct handle *h = handle; + + return next_ops->zero (nxdata, count, offs + h->offset, flags, err); +} + +/* Extents. */ +static int +partition_extents (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offs, uint32_t flags, + struct nbdkit_extents *extents, int *err) +{ + struct handle *h = handle; + size_t i; + CLEANUP_EXTENTS_FREE struct nbdkit_extents *extents2 = NULL; + struct nbdkit_extent e; + + extents2 = nbdkit_extents_new (offs + h->offset, h->offset + h->range); + if (extents2 == NULL) { + *err = errno; + return -1; + } + if (next_ops->extents (nxdata, count, offs + h->offset, + flags, extents2, err) == -1) + return -1; + + for (i = 0; i < nbdkit_extents_count (extents2); ++i) { + e = nbdkit_get_extent (extents2, i); + e.offset -= h->offset; + if (nbdkit_add_extent (extents, e.offset, e.length, e.type) == -1) { + *err = errno; + return -1; + } + } + return 0; +} + +/* Cache data. */ +static int +partition_cache (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offs, uint32_t flags, + int *err) +{ + struct handle *h = handle; + + return next_ops->cache (nxdata, count, offs + h->offset, flags, err); +} + +static struct nbdkit_filter filter = { + .name = "partition", + .longname = "nbdkit partition filter", + .config = partition_config, + .config_complete = partition_config_complete, + .config_help = partition_config_help, + .open = partition_open, + .prepare = partition_prepare, + .close = partition_close, + .get_size = partition_get_size, + .pread = partition_pread, + .pwrite = partition_pwrite, + .trim = partition_trim, + .zero = partition_zero, + .extents = partition_extents, + .cache = partition_cache, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/partition/partition.h b/filters/partition/partition.h new file mode 100644 index 0000000..ba9d50d --- /dev/null +++ b/filters/partition/partition.h @@ -0,0 +1,49 @@ +/* nbdkit + * Copyright (C) 2018-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_PARTITION_H +#define NBDKIT_PARTITION_H + +#include + +#define SECTOR_SIZE 512 + +extern unsigned partnum; + +extern int find_mbr_partition (struct nbdkit_next_ops *next_ops, void *nxdata, + int64_t size, uint8_t *mbr, + int64_t *offset_r, int64_t *range_r); +extern int find_gpt_partition (struct nbdkit_next_ops *next_ops, void *nxdata, + int64_t size, uint8_t *header_bytes, + int64_t *offset_r, int64_t *range_r); + +#endif /* NBDKIT_PARTITION_H */ diff --git a/filters/pause/Makefile.am b/filters/pause/Makefile.am new file mode 100644 index 0000000..3f83eb0 --- /dev/null +++ b/filters/pause/Makefile.am @@ -0,0 +1,67 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-pause-filter.pod + +filter_LTLIBRARIES = nbdkit-pause-filter.la + +nbdkit_pause_filter_la_SOURCES = \ + pause.c \ + $(top_srcdir)/include/nbdkit-filter.h \ + $(NULL) + +nbdkit_pause_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include \ + -I$(top_srcdir)/common/utils \ + $(NULL) +nbdkit_pause_filter_la_CFLAGS = $(WARNINGS_CFLAGS) +nbdkit_pause_filter_la_LIBADD = \ + $(top_builddir)/common/utils/libutils.la \ + $(NULL) +nbdkit_pause_filter_la_LDFLAGS = \ + -module -avoid-version -shared $(NO_UNDEFINED_ON_WINDOWS) \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms \ + $(NULL) + +if HAVE_POD + +man_MANS = nbdkit-pause-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-pause-filter.1: nbdkit-pause-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/pause/Makefile.in b/filters/pause/Makefile.in new file mode 100644 index 0000000..c5a25ea --- /dev/null +++ b/filters/pause/Makefile.in @@ -0,0 +1,907 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# nbdkit +# Copyright (C) 2013-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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file mode 100644 index 0000000..d321fdd --- /dev/null +++ b/filters/pause/nbdkit-pause-filter.pod @@ -0,0 +1,114 @@ +=head1 NAME + +nbdkit-pause-filter - pause NBD requests + +=head1 SYNOPSIS + + nbdkit --filter=pause PLUGIN [PLUGIN-ARGS...] pause-control=SOCKET + +=head1 DESCRIPTION + +C is a filter for L which can +temporarily stop NBD requests from being handled by nbdkit, and later +resume them. This filter can be used if you need to take a snapshot +of the underlying storage. + +=head2 Control socket + +The C parameter is the name of a Unix domain socket +which the filter listens for commands on. + +To pause NBD request processing you send character C<'p'> to the +socket. Any NBD requests received afterwards will hang until you +resume processing. + +To resume processing you send character C<'r'> to the socket. + +So you can know when pausing/resuming has taken effect, the filter +echos back the character over the socket in uppercase (ie. either +C<'P'> or C<'R'>). When pausing, the C<'P'> response is not sent +until all outstanding NBD requests (received before the pause) have +been completed. This usually means the plugin is idle, although be +aware that it is possible for plugins to create background threads and +do work that the filter cannot "see". + +Any unknown commands are ignored. The filter responds with C<'X'>. + +=head1 EXAMPLE + +Pick a large file, disk image or ISO, serve it over NBD, and start +copying it: + + nbdkit -U - --filter=pause --filter=rate \ + file BIG_FILE.ISO rate=10M pause-control=sock \ + --run 'qemu-img convert -p $nbd /var/tmp/out' + +To cause the copy to appear to hang, do: + + echo p | nc -U sock + +To resume activity: + + echo r | nc -U sock + +=head1 PARAMETERS + +=over 4 + +=item BSOCKET + +The Unix domain socket for controlling the filter. +See L above. + +=back + +=head1 NOTES + +If you are connecting a kernel client, virtual machine or similar to +nbdkit then only short pauses are tolerated, and you will soon get +timeout errors. The timeouts are not generated by nbdkit, but by the +client itself. + +The pause filter does not flush requests to disk, although this is a +possible future enhancement. + +A virtual machine with multiple disks connected through multiple +nbdkit instances cannot get a consistent snapshot using this filter, +since even if you send the pause commands to all instances at the same +time they will be processed at slightly different times (and this can +matter if a virtual machine is doing something like RAID across the +disks). This is not something that can be solved at the level of +individual devices, the only way to solve this is at the hypervisor +level. + +=head1 FILES + +=over 4 + +=item F<$filterdir/nbdkit-pause-filter.so> + +The filter. + +Use C to find the location of C<$filterdir>. + +=back + +=head1 VERSION + +C first appeared in nbdkit 1.22. + +=head1 SEE ALSO + +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2020 Red Hat Inc. diff --git a/filters/pause/pause.c b/filters/pause/pause.c new file mode 100644 index 0000000..62d4439 --- /dev/null +++ b/filters/pause/pause.c @@ -0,0 +1,369 @@ +/* nbdkit + * Copyright (C) 2018-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include + +#include "ascii-ctype.h" +#include "cleanup.h" +#include "utils.h" +#include "unix-path-max.h" + +static char *sockfile; +static int sock = -1; + +static void +pause_unload (void) +{ + free (sockfile); + if (sock >= 0) + close (sock); +} + +static int +pause_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + if (strcmp (key, "pause-control") == 0) { + free (sockfile); + sockfile = nbdkit_absolute_path (value); + if (sockfile == NULL) + return -1; + return 0; + } + else + return next (nxdata, key, value); +} + +static int +pause_config_complete (nbdkit_next_config_complete *next, void *nxdata) +{ + size_t len; + struct sockaddr_un addr; + + if (sockfile == NULL) { + nbdkit_error ("pause-control socket was not set"); + return -1; + } + len = strlen (sockfile); + if (len >= UNIX_PATH_MAX) { + nbdkit_error ("pause-control socket path too long: " + "length %zu > max %d bytes", + len, UNIX_PATH_MAX-1); + return -1; + } + + /* If the socket already exists, remove it. */ + unlink (sockfile); + +#ifdef SOCK_CLOEXEC + sock = socket (AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0); +#else + /* Fortunately, this code is only run at startup, so there is no + * risk of the fd leaking to a plugin's fork() + */ + sock = set_cloexec (socket (AF_UNIX, SOCK_STREAM, 0)); +#endif + if (sock == -1) { + nbdkit_error ("socket: %m"); + return -1; + } + + addr.sun_family = AF_UNIX; + memcpy (addr.sun_path, sockfile, len+1 /* trailing \0 */); + + if (bind (sock, (struct sockaddr *) &addr, sizeof addr) == -1) { + nbdkit_error ("%s: %m", sockfile); + return -1; + } + + if (listen (sock, SOMAXCONN) == -1) { + nbdkit_error ("listen: %m"); + return -1; + } + + return next (nxdata); +} + +#define pause_config_help \ + "pause-control=SOCKET Control socket." + +/* This is locked by the background thread when we're paused, causing + * all requests in the main threads to hang. + */ +static pthread_mutex_t paused = PTHREAD_MUTEX_INITIALIZER; +static bool is_paused = false; + +/* This keeps track of the number of NBD requests in flight. */ +static pthread_mutex_t count_lock = PTHREAD_MUTEX_INITIALIZER; +static pthread_cond_t count_cond = PTHREAD_COND_INITIALIZER; +static unsigned count_requests = 0; + +static void +do_pause (void) +{ + if (is_paused) return; + + /* Grabbing the paused lock is enough to stop request processing. */ + pthread_mutex_lock (&paused); + is_paused = true; + + /* However we must also wait until all outstanding requests have + * been completed before we send the acknowledgement. + */ + nbdkit_debug ("pause: pausing, waiting for requests to complete"); + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&count_lock); + while (count_requests > 0) + pthread_cond_wait (&count_cond, &count_lock); + nbdkit_debug ("pause: paused"); +} + +static void +do_resume (void) +{ + if (!is_paused) return; + + /* Release the worker threads. */ + pthread_mutex_unlock (&paused); + is_paused = false; + nbdkit_debug ("pause: resumed"); +} + +/* Background thread which monitors the control socket. This can only + * accept one connection at a time. + */ +static void * +control_socket_thread (void *arg) +{ + int s; + char c; + ssize_t n; + + for (;;) { +#ifdef HAVE_ACCEPT4 + s = accept4 (sock, NULL, NULL, SOCK_CLOEXEC); +#else + /* This isn't thread-safe but there's not a lot we can do. */ + s = set_cloexec (accept (sock, NULL, NULL)); +#endif + if (s == -1) goto out; + + /* Read commands (which are single bytes) until end of file. */ + while ((n = read (s, &c, 1)) == 1) { + switch (c) { + case 'p': + do_pause (); + break; + case 'r': + do_resume (); + break; + case '\n': + case '\t': + case ' ': + /* For convenience of interactive use, ignore and don't + * respond to some whitespace characters. + */ + continue; + default: /* Unknown command. */ + c = 'X'; + } + /* Send the response. */ + c = ascii_toupper (c); + n = write (s, &c, 1); + if (n == -1) goto out; + } + if (n == 0) + errno = 0; + out: + if (errno && (errno != EINTR && errno != EAGAIN)) + nbdkit_error ("accept: %m"); + if (s >= 0) + close (s); + } + + /*NOTREACHED*/ + return NULL; +} + +/* Start the background thread after fork. */ +static int +pause_after_fork (nbdkit_next_after_fork *next, void *nxdata) +{ + int err; + pthread_t thread; + + err = pthread_create (&thread, NULL, control_socket_thread, NULL); + if (err != 0) { + errno = err; + nbdkit_error ("pthread_create: %m"); + return -1; + } + return next (nxdata); +} + +/* This is called before processing each NBD request. */ +static void +begin_request (void) +{ + /* This will hang if we're paused. */ + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&paused); + + /* Count the number of requests in flight. */ + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&count_lock); + count_requests++; +} + +/* This is called after processing each NBD request. */ +static void +end_request (void) +{ + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&count_lock); + count_requests--; + pthread_cond_signal (&count_cond); +} + +/* Read data. */ +static int +pause_pread (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + int r; + + begin_request (); + r = next_ops->pread (nxdata, buf, count, offset, flags, err); + end_request (); + return r; +} + +/* Write data. */ +static int +pause_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, + const void *buf, uint32_t count, uint64_t offset, uint32_t flags, + int *err) +{ + int r; + + begin_request (); + r = next_ops->pwrite (nxdata, buf, count, offset, flags, err); + end_request (); + return r; +} + +/* Zero data. */ +static int +pause_zero (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, uint32_t flags, + int *err) +{ + int r; + + begin_request (); + r = next_ops->zero (nxdata, count, offset, flags, err); + end_request (); + return r; +} + +/* Trim data. */ +static int +pause_trim (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + int r; + + begin_request (); + r = next_ops->trim (nxdata, count, offset, flags, err); + end_request (); + return r; +} + +/* Extents. */ +static int +pause_extents (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, uint32_t flags, + struct nbdkit_extents *extents, int *err) +{ + int r; + + begin_request (); + r = next_ops->extents (nxdata, count, offset, flags, extents, err); + end_request (); + return r; +} + +/* Cache. */ +static int +pause_cache (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, uint32_t flags, + int *err) +{ + int r; + + begin_request (); + r = next_ops->cache (nxdata, count, offset, flags, err); + end_request (); + return r; +} + +static struct nbdkit_filter filter = { + .name = "pause", + .longname = "nbdkit pause filter", + .unload = pause_unload, + .config = pause_config, + .config_complete = pause_config_complete, + .config_help = pause_config_help, + .after_fork = pause_after_fork, + .pread = pause_pread, + .pwrite = pause_pwrite, + .zero = pause_zero, + .trim = pause_trim, + .extents = pause_extents, + .cache = pause_cache, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/rate/Makefile.am b/filters/rate/Makefile.am new file mode 100644 index 0000000..7f61ca4 --- /dev/null +++ b/filters/rate/Makefile.am @@ -0,0 +1,69 @@ +# nbdkit +# Copyright (C) 2018-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-rate-filter.pod + +filter_LTLIBRARIES = nbdkit-rate-filter.la + +nbdkit_rate_filter_la_SOURCES = \ + bucket.c \ + bucket.h \ + rate.c \ + $(top_srcdir)/include/nbdkit-filter.h \ + $(NULL) + +nbdkit_rate_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include \ + -I$(top_srcdir)/common/utils \ + $(NULL) +nbdkit_rate_filter_la_CFLAGS = $(WARNINGS_CFLAGS) +nbdkit_rate_filter_la_LIBADD = \ + $(top_builddir)/common/utils/libutils.la \ + $(NULL) +nbdkit_rate_filter_la_LDFLAGS = \ + -module -avoid-version -shared $(NO_UNDEFINED_ON_WINDOWS) \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms \ + $(NULL) + +if HAVE_POD + +man_MANS = nbdkit-rate-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-rate-filter.1: nbdkit-rate-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/rate/Makefile.in b/filters/rate/Makefile.in new file mode 100644 index 0000000..e9d968c --- /dev/null +++ b/filters/rate/Makefile.in @@ -0,0 +1,920 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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nbdkit-rate-filter.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/filters/rate/bucket.c b/filters/rate/bucket.c new file mode 100644 index 0000000..b3addac --- /dev/null +++ b/filters/rate/bucket.c @@ -0,0 +1,172 @@ +/* nbdkit + * Copyright (C) 2018-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* This filter is implemented using a Token Bucket + * (https://en.wikipedia.org/wiki/Token_bucket). There are two + * buckets per connection (one each for reading and writing) and two + * global buckets (also for reading and writing). + * + * We add tokens at the desired rate (the per-connection rate for the + * connection buckets, and the global rate for the global buckets). + * Note that we don't actually keep the buckets updated in real time + * because as a filter we are called asynchronously. Instead for each + * bucket we store the last time we were called and add the + * appropriate number of tokens when we are called next. + * + * The bucket capacity controls the burstiness allowed. This is + * hard-coded at the moment but could be configurable. All buckets + * start off full. + * + * When a packet is to be read or written, if there are sufficient + * tokens in the bucket then the packet may be immediately passed + * through to the underlying plugin. The number of bits used is + * deducted from the appropriate per-connection and global bucket. + * + * If there are insufficient tokens then the packet must be delayed. + * This is done by inserting a sleep which has an estimated length + * that is long enough based on the rate at which enough tokens will + * replenish the bucket to allow the packet to be sent next time. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "minmax.h" +#include "tvdiff.h" + +#include "bucket.h" + +int rate_debug_bucket; /* -D rate.bucket=1 */ + +void +bucket_init (struct bucket *bucket, uint64_t rate, double capacity_secs) +{ + bucket->rate = rate; + + /* Store the capacity passed to this function. We will need this if + * we adjust the rate dynamically. + */ + bucket->capacity_secs = capacity_secs; + + /* Capacity is expressed in seconds, but we want to know the + * capacity in tokens, so multiply by the rate to get this. + */ + bucket->capacity = rate * capacity_secs; + + /* Buckets start off full. */ + bucket->level = bucket->capacity; + + gettimeofday (&bucket->tv, NULL); +} + +uint64_t +bucket_adjust_rate (struct bucket *bucket, uint64_t rate) +{ + uint64_t old_rate = bucket->rate; + + bucket->rate = rate; + bucket->capacity = rate * bucket->capacity_secs; + if (bucket->level > bucket->capacity) + bucket->level = bucket->capacity; + return old_rate; +} + +uint64_t +bucket_run (struct bucket *bucket, uint64_t n, struct timespec *ts) +{ + struct timeval now; + int64_t usec; + uint64_t add, nsec; + + /* rate == 0 is a special case meaning that there is no limit being + * enforced. + */ + if (bucket->rate == 0) + return 0; + + gettimeofday (&now, NULL); + + /* Work out how much time has elapsed since we last added tokens to + * the bucket, and add the correct number of tokens. + */ + usec = tvdiff_usec (&bucket->tv, &now); + if (usec < 0) /* Maybe happens if system time not monotonic? */ + usec = 0; + + add = bucket->rate * usec / 1000000; + add = MIN (add, bucket->capacity - bucket->level); + if (rate_debug_bucket) + nbdkit_debug ("bucket %p: adding %" PRIu64 " tokens, new level %" PRIu64, + bucket, add, bucket->level + add); + bucket->level += add; + bucket->tv = now; + + /* Can we deduct N tokens from the bucket? If yes then we're good, + * and we can return 0 which means the caller won't sleep. + */ + if (bucket->level >= n) { + if (rate_debug_bucket) + nbdkit_debug ("bucket %p: deducting %" PRIu64 " tokens", bucket, n); + bucket->level -= n; + return 0; + } + + if (rate_debug_bucket) + nbdkit_debug ("bucket %p: deducting %" PRIu64 " tokens, bucket empty, " + "need another %" PRIu64 " tokens", + bucket, bucket->level, n - bucket->level); + + n -= bucket->level; + bucket->level = 0; + + /* Now we need to estimate how long it will take to add N tokens to + * the bucket, which is how long the caller must sleep for. + */ + nsec = 1000000000 * n / bucket->rate; + ts->tv_sec = nsec / 1000000000; + ts->tv_nsec = nsec % 1000000000; + + if (rate_debug_bucket) + nbdkit_debug ("bucket %p: sleeping for %.1f seconds", bucket, + nsec / 1000000000.); + + return n; +} diff --git a/filters/rate/bucket.h b/filters/rate/bucket.h new file mode 100644 index 0000000..1ee60e0 --- /dev/null +++ b/filters/rate/bucket.h @@ -0,0 +1,78 @@ +/* nbdkit + * Copyright (C) 2018-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_BUCKET_H +#define NBDKIT_BUCKET_H + +#include +#include +#include + +/* A token bucket. */ +struct bucket { + uint64_t rate; /* Fill rate. 0 = no limit set. */ + double capacity_secs; /* Capacity as supplied to bucket_init. */ + uint64_t capacity; /* Maximum capacity of the bucket in tokens. */ + uint64_t level; /* How full is the bucket now? */ + struct timeval tv; /* Last time we updated the level. */ +}; + +/* Initialize the bucket structure. Capacity is expressed in + * rate-equivalent seconds. + */ +extern void bucket_init (struct bucket *bucket, + uint64_t rate, double capacity_secs); + +/* Dynamically adjust the rate. The old rate is returned. */ +extern uint64_t bucket_adjust_rate (struct bucket *bucket, uint64_t rate); + +/* Take up to N tokens from the bucket. + * + * If the bucket has >= N tokens (ie. we can send the packet now) then + * the number of tokens in the bucket is reduced by N and this + * function returns 0. + * + * If the bucket has fewer than N tokens then the bucket is emptied + * and the number of tokens we still need to take is returned as a + * positive number > 0. In this case, *TS is initialized with the + * estimated length of time you should sleep. (Note that *TS is _NOT_ + * initialized if the return value == 0, because the caller should not + * sleep in that case.) + * + * In the case where the caller needs to sleep, it must make a further + * call to bucket_run before proceeding, since another thread may have + * "stolen" the tokens while you were sleeping. + */ +extern uint64_t bucket_run (struct bucket *bucket, uint64_t n, + struct timespec *ts); + +#endif /* NBDKIT_BUCKET_H */ diff --git a/filters/rate/nbdkit-rate-filter.pod b/filters/rate/nbdkit-rate-filter.pod new file mode 100644 index 0000000..7aef4ec --- /dev/null +++ b/filters/rate/nbdkit-rate-filter.pod @@ -0,0 +1,145 @@ +=head1 NAME + +nbdkit-rate-filter - limit bandwidth by connection or server + +=head1 SYNOPSIS + + nbdkit --filter=rate PLUGIN [PLUGIN-ARGS...] + [rate=BITSPERSEC] + [connection-rate=BITSPERSEC] + [rate-file=FILENAME] + [connection-rate-file=FILENAME] + +=head1 DESCRIPTION + +C is a filter that limits the bandwidth that can +be used by the server. Limits can be applied per connection and/or +for the server as a whole. + +=head1 EXAMPLES + +=over 4 + +=item nbdkit --filter=rate memory 64M rate=1M + +Create a 64M RAM disk and limit server bandwidth as a whole to a +maximum of S<1 Mbps> (megabit per second). + +=item nbdkit --filter=rate memory 64M connection-rate=50K + +Limit each connection to S<50 Kbps> (kilobits per second). However as +there is no limit to the number of simultaneous connections this does +not limit overall server bandwidth. + +=item nbdkit --filter=rate memory 64M connection-rate=50K rate=1M + +Limit each connection to S<50 Kbps>. Additionally the total bandwidth +across all connections to the server is limited to S<1 Mbps>. + +=item nbdkit --filter=rate memory 64M rate=1M rate-file=/tmp/rate + +Initially limit bandwidth to S<1 Mbps>. While the server is running +the rate can be adjusted dynamically by writing a different rate into +F. + +=back + +=head1 PARAMETERS + +=over 4 + +=item BBITSPERSEC + +Limit each connection to C. + +=item BBITSPERSEC + +Limit total bandwidth across all connections to C. + +=item BFILENAME + +=item BFILENAME + +Adjust the per-connection or total bandwidth dynamically by writing +C into C. See L below. + +=back + +C can be specified as a simple number, or you can use a +number followed by C, C etc to mean kilobits, megabits and so +on. + +=head1 DYNAMIC ADJUSTMENT + +Using the C or C parameters you can +dynamically adjust the bandwidth while the server is running. + +If the file is not present when the server starts up then the initial +rate is taken from the associated C or C +parameter (or if that is not present, then it is unlimited). If the +file is deleted while the server is running then the last rate read +from the file continues to be used. + +The file should be updated atomically (eg. create a new file, then +rename or L the new file over the old file). + +There will be a short delay between the file being updated and the new +rate coming into effect. + +=head1 NOTES + +You can specify C and C on their own or +together. If you specify neither, the filter is turned off. + +The rate filter approximates the bandwidth used by the NBD protocol on +the wire. Some operations such as zeroing and trimming are +effectively free (because only a tiny NBD message is sent over the +network) and so do not count against the bandwidth limit. NBD and TCP +protocol overhead is not included, so you may find that other tools +such as L and L give more accurate results. + +There are separate bandwidth limits for read and write (ie. download +and upload to the server). + +If the size of requests made by your client is much larger than the +rate limit then you can see long, lumpy sleeps in this filter. In the +future we may modify the filter to break up large requests +automatically in order to limit the length of sleeps. Placing the +L in front of this filter may help in the +meantime. + +=head1 FILES + +=over 4 + +=item F<$filterdir/nbdkit-rate-filter.so> + +The filter. + +Use C to find the location of C<$filterdir>. + +=back + +=head1 VERSION + +C first appeared in nbdkit 1.12. + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2019 Red Hat Inc. diff --git a/filters/rate/rate.c b/filters/rate/rate.c new file mode 100644 index 0000000..325f565 --- /dev/null +++ b/filters/rate/rate.c @@ -0,0 +1,324 @@ +/* nbdkit + * Copyright (C) 2018-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* For a note on the implementation of this filter, see bucket.c. */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include + +#include "cleanup.h" + +#include "bucket.h" + +/* Per-connection and global limit, both in bits per second, with zero + * meaning not set / not enforced. These are only used when reading + * the command line and initializing the buckets for the first time. + * They are not involved in dynamic rate adjustment. + */ +static uint64_t connection_rate = 0; +static uint64_t rate = 0; + +/* Files for dynamic rate adjustment. */ +static char *connection_rate_file = NULL; +static char *rate_file = NULL; + +/* Bucket capacity controls the burst rate. It is expressed as the + * length of time in "rate-equivalent seconds" that the client can + * burst for after a period of inactivity. This could be adjustable + * in future. + */ +#define BUCKET_CAPACITY 2.0 + +/* Global read and write buckets. */ +static struct bucket read_bucket; +static pthread_mutex_t read_bucket_lock = PTHREAD_MUTEX_INITIALIZER; +static struct bucket write_bucket; +static pthread_mutex_t write_bucket_lock = PTHREAD_MUTEX_INITIALIZER; + +/* Per-connection handle. */ +struct rate_handle { + /* Per-connection read and write buckets. */ + struct bucket read_bucket; + pthread_mutex_t read_bucket_lock; + struct bucket write_bucket; + pthread_mutex_t write_bucket_lock; +}; + +static void +rate_unload (void) +{ + free (connection_rate_file); + free (rate_file); +} + +/* Called for each key=value passed on the command line. */ +static int +rate_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + if (strcmp (key, "rate") == 0) { + if (rate > 0) { + nbdkit_error ("rate set twice on the command line"); + return -1; + } + rate = nbdkit_parse_size (value); + if (rate == -1) + return -1; + if (rate == 0) { + nbdkit_error ("rate cannot be set to 0"); + return -1; + } + return 0; + } + else if (strcmp (key, "connection-rate") == 0) { + if (connection_rate > 0) { + nbdkit_error ("connection-rate set twice on the command line"); + return -1; + } + connection_rate = nbdkit_parse_size (value); + if (connection_rate == -1) + return -1; + if (connection_rate == 0) { + nbdkit_error ("connection-rate cannot be set to 0"); + return -1; + } + return 0; + } + else if (strcmp (key, "rate-file") == 0) { + free (rate_file); + rate_file = nbdkit_absolute_path (value); + if (rate_file == NULL) + return -1; + return 0; + } + else if (strcmp (key, "connection-rate-file") == 0) { + free (connection_rate_file); + connection_rate_file = nbdkit_absolute_path (value); + if (connection_rate_file == NULL) + return -1; + return 0; + } + else + return next (nxdata, key, value); +} + +static int +rate_get_ready (nbdkit_next_get_ready *next, void *nxdata, int thread_model) +{ + /* Initialize the global buckets. */ + bucket_init (&read_bucket, rate, BUCKET_CAPACITY); + bucket_init (&write_bucket, rate, BUCKET_CAPACITY); + + return next (nxdata); +} + +#define rate_config_help \ + "rate=BITSPERSEC Limit total bandwidth.\n" \ + "connection-rate=BITSPERSEC Limit per-connection bandwidth.\n" \ + "rate-file=FILENAME Dynamically adjust total bandwidth.\n" \ + "connection-rate-file=FILENAME Dynamically adjust per-connection bandwidth." + +/* Create the per-connection handle. */ +static void * +rate_open (nbdkit_next_open *next, void *nxdata, + int readonly, const char *exportname, int is_tls) +{ + struct rate_handle *h; + + if (next (nxdata, readonly, exportname) == -1) + return NULL; + + h = malloc (sizeof *h); + if (h == NULL) { + nbdkit_error ("malloc: %m"); + return NULL; + } + + bucket_init (&h->read_bucket, connection_rate, BUCKET_CAPACITY); + bucket_init (&h->write_bucket, connection_rate, BUCKET_CAPACITY); + pthread_mutex_init (&h->read_bucket_lock, NULL); + pthread_mutex_init (&h->write_bucket_lock, NULL); + + return h; +} + +/* Free up the per-connection handle. */ +static void +rate_close (void *handle) +{ + struct rate_handle *h = handle; + + pthread_mutex_destroy (&h->read_bucket_lock); + pthread_mutex_destroy (&h->write_bucket_lock); + free (h); +} + +static void +maybe_adjust (const char *file, struct bucket *bucket, pthread_mutex_t *lock) +{ + int fd; + FILE *fp; + ssize_t r; + size_t len = 0; + CLEANUP_FREE char *line = NULL; + int64_t new_rate; + uint64_t old_rate; + + if (!file) return; + + /* Alas, Haiku lacks fopen("re"), so we have to spell this out the + * long way. We require atomic CLOEXEC, in case the plugin is using + * fork() in a parallel thread model. + */ + fd = open (file, O_CLOEXEC | O_RDONLY); + if (fd == -1) + return; /* this is not an error */ + fp = fdopen (fd, "r"); + if (fp == NULL) { + nbdkit_debug ("fdopen: %s: %m", file); + close (fd); + return; /* unexpected, but treat it as a non-error */ + } + + r = getline (&line, &len, fp); + if (r == -1) { + nbdkit_debug ("could not read rate file: %s: %m", file); + fclose (fp); + return; + } + fclose (fp); + + if (r > 0 && line[r-1] == '\n') line[r-1] = '\0'; + new_rate = nbdkit_parse_size (line); + if (new_rate == -1) + return; + + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (lock); + old_rate = bucket_adjust_rate (bucket, new_rate); + + if (old_rate != new_rate) + nbdkit_debug ("rate adjusted from %" PRIu64 " to %" PRIi64, + old_rate, new_rate); +} + +static inline int +maybe_sleep (struct bucket *bucket, pthread_mutex_t *lock, uint32_t count, + int *err) +{ + struct timespec ts; + uint64_t bits; + + /* Count is in bytes, but we rate limit using bits. We could + * multiply this by 10 to include start/stop but let's not + * second-guess the transport layers underneath. + */ + bits = count * UINT64_C(8); + + while (bits > 0) { + /* Run the token bucket algorithm. */ + { + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (lock); + bits = bucket_run (bucket, bits, &ts); + } + + if (bits > 0 && nbdkit_nanosleep (ts.tv_sec, ts.tv_nsec) == -1) { + *err = errno; + return -1; + } + } + return 0; +} + +/* Read data. */ +static int +rate_pread (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + struct rate_handle *h = handle; + + maybe_adjust (rate_file, &read_bucket, &read_bucket_lock); + if (maybe_sleep (&read_bucket, &read_bucket_lock, count, err)) + return -1; + maybe_adjust (connection_rate_file, &h->read_bucket, &h->read_bucket_lock); + if (maybe_sleep (&h->read_bucket, &h->read_bucket_lock, count, err)) + return -1; + + return next_ops->pread (nxdata, buf, count, offset, flags, err); +} + +/* Write data. */ +static int +rate_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, + const void *buf, uint32_t count, uint64_t offset, uint32_t flags, + int *err) +{ + struct rate_handle *h = handle; + + maybe_adjust (rate_file, &write_bucket, &write_bucket_lock); + if (maybe_sleep (&write_bucket, &write_bucket_lock, count, err)) + return -1; + maybe_adjust (connection_rate_file, &h->write_bucket, &h->write_bucket_lock); + if (maybe_sleep (&h->write_bucket, &h->write_bucket_lock, count, err)) + return -1; + + return next_ops->pwrite (nxdata, buf, count, offset, flags, err); +} + +static struct nbdkit_filter filter = { + .name = "rate", + .longname = "nbdkit rate filter", + .unload = rate_unload, + .config = rate_config, + .config_help = rate_config_help, + .get_ready = rate_get_ready, + .open = rate_open, + .close = rate_close, + .pread = rate_pread, + .pwrite = rate_pwrite, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/readahead/Makefile.am b/filters/readahead/Makefile.am new file mode 100644 index 0000000..387750c --- /dev/null +++ b/filters/readahead/Makefile.am @@ -0,0 +1,67 @@ +# nbdkit +# Copyright (C) 2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-readahead-filter.pod + +filter_LTLIBRARIES = nbdkit-readahead-filter.la + +nbdkit_readahead_filter_la_SOURCES = \ + readahead.c \ + $(top_srcdir)/include/nbdkit-filter.h \ + $(NULL) + +nbdkit_readahead_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include \ + -I$(top_srcdir)/common/utils \ + $(NULL) +nbdkit_readahead_filter_la_CFLAGS = $(WARNINGS_CFLAGS) +nbdkit_readahead_filter_la_LDFLAGS = \ + -module -avoid-version -shared $(NO_UNDEFINED_ON_WINDOWS) \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms \ + $(NULL) +nbdkit_readahead_filter_la_LIBADD = \ + $(top_builddir)/common/utils/libutils.la \ + $(NULL) + +if HAVE_POD + +man_MANS = nbdkit-readahead-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-readahead-filter.1: nbdkit-readahead-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/readahead/Makefile.in b/filters/readahead/Makefile.in new file mode 100644 index 0000000..ba3ea6c --- /dev/null +++ b/filters/readahead/Makefile.in @@ -0,0 +1,909 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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+@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/filters/readahead/nbdkit-readahead-filter.pod b/filters/readahead/nbdkit-readahead-filter.pod new file mode 100644 index 0000000..c220d37 --- /dev/null +++ b/filters/readahead/nbdkit-readahead-filter.pod @@ -0,0 +1,67 @@ +=head1 NAME + +nbdkit-readahead-filter - prefetch data when reading sequentially + +=head1 SYNOPSIS + + nbdkit --filter=readahead plugin + +=head1 DESCRIPTION + +C is a filter that prefetches data when the +client is reading sequentially. + +A common use for this filter is to accelerate sequential copy +operations (like S>) when plugin requests have a +high overhead (like L). For example: + + nbdkit -U - --filter=readahead curl https://example.com/disk.img \ + --run 'qemu-img convert $nbd disk.img' + +The filter uses a simple adaptive algorithm which accelerates +sequential reads, but has a small penalty if the client does random +reads. If the client mixes reads with writes or write-like operations +(trimming, zeroing) then it will work but there can be a large +performance penalty. + +=head1 PARAMETERS + +There are no parameters specific to nbdkit-readahead-filter. Any +parameters are passed through to and processed by the underlying +plugin in the normal way. + +=head1 FILES + +=over 4 + +=item F<$filterdir/nbdkit-readahead-filter.so> + +The filter. + +Use C to find the location of C<$filterdir>. + +=back + +=head1 VERSION + +C first appeared in nbdkit 1.12. + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2019 Red Hat Inc. diff --git a/filters/readahead/readahead.c b/filters/readahead/readahead.c new file mode 100644 index 0000000..8163c4f --- /dev/null +++ b/filters/readahead/readahead.c @@ -0,0 +1,260 @@ +/* nbdkit + * Copyright (C) 2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include + +#include + +#include + +#include "cleanup.h" +#include "minmax.h" + +/* Copied from server/plugins.c. */ +#define MAX_REQUEST_SIZE (64 * 1024 * 1024) + +/* These could be made configurable in future. */ +#define READAHEAD_MIN 65536 +#define READAHEAD_MAX MAX_REQUEST_SIZE + +/* This lock protects the global state. */ +static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER; + +/* The real size of the underlying plugin. */ +static uint64_t size; + +/* Size of the readahead window. */ +static uint64_t window = READAHEAD_MIN; + +/* The single prefetch buffer shared by all threads, and its virtual + * location in the virtual disk. The prefetch buffer grows + * dynamically as required, but never shrinks. + */ +static char *buffer = NULL; +static size_t bufsize = 0; +static uint64_t position; +static uint32_t length = 0; + +static void +readahead_unload (void) +{ + free (buffer); +} + +static int64_t readahead_get_size (struct nbdkit_next_ops *next_ops, + void *nxdata, void *handle); + +/* In prepare, force a call to get_size which sets the size global. */ +static int +readahead_prepare (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, int readonly) +{ + int64_t r; + + r = readahead_get_size (next_ops, nxdata, handle); + return r >= 0 ? 0 : -1; +} + +/* Get the size. */ +static int64_t +readahead_get_size (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + int64_t r; + + r = next_ops->get_size (nxdata); + if (r == -1) + return -1; + + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + size = r; + + return r; +} + +/* Cache */ +static int +readahead_can_cache (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + /* We are already operating as a cache regardless of the plugin's + * underlying .can_cache, but it's easiest to just rely on nbdkit's + * behavior of calling .pread for caching. + */ + return NBDKIT_CACHE_EMULATE; +} + +/* Read data. */ + +static int +fill_readahead (struct nbdkit_next_ops *next_ops, void *nxdata, + uint32_t count, uint64_t offset, uint32_t flags, int *err) +{ + position = offset; + + /* Read at least window bytes, but if count is larger read that. + * Note that the count cannot be bigger than the buffer size. + */ + length = MAX (count, window); + + /* Don't go beyond the end of the underlying file. */ + length = MIN (length, size - position); + + /* Grow the buffer if necessary. */ + if (bufsize < length) { + char *new_buffer = realloc (buffer, length); + if (new_buffer == NULL) { + *err = errno; + nbdkit_error ("realloc: %m"); + return -1; + } + buffer = new_buffer; + bufsize = length; + } + + if (next_ops->pread (nxdata, buffer, length, offset, flags, err) == -1) { + length = 0; /* failed to fill the prefetch buffer */ + return -1; + } + + return 0; +} + +static int +readahead_pread (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + + while (count > 0) { + if (length == 0) { + /* We don't have a prefetch buffer at all. This could be the + * first request or reset after a miss. + */ + window = READAHEAD_MIN; + if (fill_readahead (next_ops, nxdata, count, offset, flags, err) == -1) + return -1; + } + + /* Can we satisfy this request partly or entirely from the prefetch + * buffer? + */ + else if (position <= offset && offset < position + length) { + uint32_t n = MIN (position - offset + length, count); + memcpy (buf, &buffer[offset-position], n); + buf += n; + offset += n; + count -= n; + } + + /* Does the request start immediately after the prefetch buffer? + * This is a “hit” allowing us to double the window size. + */ + else if (offset == position + length) { + window = MIN (window * 2, READAHEAD_MAX); + if (fill_readahead (next_ops, nxdata, count, offset, flags, err) == -1) + return -1; + } + + /* Else it's a “miss”. Reset everything and start again. */ + else + length = 0; + } + + return 0; +} + +/* Any writes or write-like operations kill the prefetch buffer. + * + * We could do better here, but for the current use case of this + * filter it doesn't matter. XXX + */ + +static void +kill_readahead (void) +{ + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + window = READAHEAD_MIN; + length = 0; +} + +static int +readahead_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, + const void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + kill_readahead (); + return next_ops->pwrite (nxdata, buf, count, offset, flags, err); +} + +static int +readahead_trim (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, + uint32_t count, uint64_t offset, uint32_t flags, + int *err) +{ + kill_readahead (); + return next_ops->trim (nxdata, count, offset, flags, err); +} + +static int +readahead_zero (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, + uint32_t count, uint64_t offset, uint32_t flags, + int *err) +{ + kill_readahead (); + return next_ops->zero (nxdata, count, offset, flags, err); +} + +static struct nbdkit_filter filter = { + .name = "readahead", + .longname = "nbdkit readahead filter", + .unload = readahead_unload, + .prepare = readahead_prepare, + .get_size = readahead_get_size, + .can_cache = readahead_can_cache, + .pread = readahead_pread, + .pwrite = readahead_pwrite, + .trim = readahead_trim, + .zero = readahead_zero, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/retry/Makefile.am b/filters/retry/Makefile.am new file mode 100644 index 0000000..1011bff --- /dev/null +++ b/filters/retry/Makefile.am @@ -0,0 +1,67 @@ +# nbdkit +# Copyright (C) 2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-retry-filter.pod + +filter_LTLIBRARIES = nbdkit-retry-filter.la + +nbdkit_retry_filter_la_SOURCES = \ + retry.c \ + $(top_srcdir)/include/nbdkit-filter.h \ + $(NULL) + +nbdkit_retry_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include \ + -I$(top_srcdir)/common/utils \ + $(NULL) +nbdkit_retry_filter_la_CFLAGS = $(WARNINGS_CFLAGS) +nbdkit_retry_filter_la_LDFLAGS = \ + -module -avoid-version -shared $(NO_UNDEFINED_ON_WINDOWS) \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms \ + $(NULL) +nbdkit_retry_filter_la_LIBADD = \ + $(top_builddir)/common/utils/libutils.la \ + $(NULL) + +if HAVE_POD + +man_MANS = nbdkit-retry-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-retry-filter.1: nbdkit-retry-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/retry/Makefile.in b/filters/retry/Makefile.in new file mode 100644 index 0000000..41bcc6d --- /dev/null +++ b/filters/retry/Makefile.in @@ -0,0 +1,907 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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file mode 100644 index 0000000..fee4b7e --- /dev/null +++ b/filters/retry/nbdkit-retry-filter.pod @@ -0,0 +1,124 @@ +=head1 NAME + +nbdkit-retry-filter - reopen connection on error + +=head1 SYNOPSIS + + nbdkit --filter=retry PLUGIN [retries=N] [retry-delay=N] + [retry-exponential=yes|no] + [retry-readonly=yes|no] + +=head1 DESCRIPTION + +C is a filter that transparently reopens the +plugin connection when an error is encountered. It can be used to +make long-running copy operations reliable in the presence of +temporary network failures, without requiring any changes to the +plugin or the NBD client. + +Several optional parameters are available to control: + +=over 4 + +=item * + +how many times we retry, + +=item * + +the delay between retries, and whether we wait longer each time (known +as “exponential back-off”), + +=item * + +if we reopen the plugin in read-only mode after the first failure. + +=back + +The default (with no parameters) is designed to offer a happy medium +between recovering from short temporary failures but not doing +anything too bad when permanent or unrecoverable failures happen. The +default behaviour is: we retry 5 times with exponential back-off, +waiting in total about 1 minute before we give up. + +=head1 EXAMPLE + +In this example we copy and convert a large file using +L, L and L. + + nbdkit -U - \ + ssh host=remote.example.com /var/tmp/test.iso \ + --filter=retry \ + --run 'qemu-img convert -p -f raw $nbd -O qcow2 test.qcow2' + +Without I<--filter=retry> a temporary failure would cause the copy to +fail (for example, the remote host’s firewall is restarted causing the +SSH connection to be dropped). Adding this filter means that it may +be possible to transparently recover. + +=head1 PARAMETERS + +=over 4 + +=item BN + +The number of times any single operation will be retried before we +give up and fail the operation. The default is 5. + +=item BN + +The number of seconds to wait before retrying. The default is 2 +seconds. + +=item B + +Use exponential back-off. The retry delay is doubled between each +retry. This is the default. + +=item B + +Do not use exponential back-off. The retry delay is the same between +each retry. + +=item B + +As soon as a failure occurs, switch the underlying plugin to read-only +mode for the rest of this connection. (A new NBD client connection +will still open the plugin in the original mode.) + +=item B + +Do not change the read-write/read-only mode of the plugin when +retrying. This is the default. + +=back + +=head1 FILES + +=over 4 + +=item F<$filterdir/nbdkit-retry-filter.so> + +The filter. + +Use C to find the location of C<$filterdir>. + +=back + +=head1 VERSION + +C first appeared in nbdkit 1.16. + +=head1 SEE ALSO + +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2019 Red Hat Inc. diff --git a/filters/retry/retry.c b/filters/retry/retry.c new file mode 100644 index 0000000..a2e57d7 --- /dev/null +++ b/filters/retry/retry.c @@ -0,0 +1,470 @@ +/* nbdkit + * Copyright (C) 2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "cleanup.h" + +static unsigned retries = 5; /* 0 = filter is disabled */ +static unsigned initial_delay = 2; +static bool exponential_backoff = true; +static bool force_readonly = false; + +/* Currently next_ops->reopen is not safe if another thread makes a + * request on the same connection (but on other connections it's OK). + * To work around this for now we limit the thread model here, but + * this is something we could improve in server/backend.c in future. + */ +static int +retry_thread_model (void) +{ + return NBDKIT_THREAD_MODEL_SERIALIZE_REQUESTS; +} + +static int +retry_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + int r; + + if (strcmp (key, "retries") == 0) { + if (nbdkit_parse_unsigned ("retries", value, &retries) == -1) + return -1; + return 0; + } + else if (strcmp (key, "retry-delay") == 0) { + if (nbdkit_parse_unsigned ("retry-delay", value, &initial_delay) == -1) + return -1; + if (initial_delay == 0) { + nbdkit_error ("retry-delay cannot be 0"); + return -1; + } + return 0; + } + else if (strcmp (key, "retry-exponential") == 0) { + r = nbdkit_parse_bool (value); + if (r == -1) + return -1; + exponential_backoff = r; + return 0; + } + else if (strcmp (key, "retry-readonly") == 0) { + r = nbdkit_parse_bool (value); + if (r == -1) + return -1; + force_readonly = r; + return 0; + } + + return next (nxdata, key, value); +} + +#define retry_config_help \ + "retries= Number of retries (default: 5).\n" \ + "retry-delay= Seconds to wait before retry (default: 2).\n" \ + "retry-exponential=yes|no Exponential back-off (default: yes).\n" \ + "retry-readonly=yes|no Force read-only on failure (default: no).\n" + +struct retry_handle { + int readonly; /* Save original readonly setting. */ + const char *exportname; /* Client exportname. */ + unsigned reopens; + bool open; +}; + +static void * +retry_open (nbdkit_next_open *next, void *nxdata, + int readonly, const char *exportname, int is_tls) +{ + struct retry_handle *h; + + if (next (nxdata, readonly, exportname) == -1) + return NULL; + + h = malloc (sizeof *h); + if (h == NULL) { + nbdkit_error ("malloc: %m"); + return NULL; + } + + h->readonly = readonly; + h->exportname = strdup (exportname); + if (h->exportname == NULL) { + nbdkit_error ("strdup: %m"); + free (h); + return NULL; + } + h->reopens = 0; + h->open = true; + + return h; +} + +static void +retry_close (void *handle) +{ + struct retry_handle *h = handle; + + nbdkit_debug ("reopens needed: %u", h->reopens); + free (h); +} + +/* This function encapsulates the common retry logic used across all + * data commands. If it returns true then the data command will retry + * the operation. ‘struct retry_data’ is stack data saved between + * retries within the same command, and is initialized to zero. + */ +struct retry_data { + int retry; /* Retry number (0 = first time). */ + int delay; /* Seconds to wait before retrying. */ +}; + +static bool +valid_range (struct nbdkit_next_ops *next_ops, void *nxdata, + uint32_t count, uint64_t offset, bool is_write, int *err) +{ + if ((int64_t) offset + count > next_ops->get_size (nxdata)) { + *err = is_write ? ENOSPC : EIO; + return false; + } + return true; +} + +static bool +do_retry (struct retry_handle *h, + struct retry_data *data, + struct nbdkit_next_ops *next_ops, void *nxdata, + const char *method, int *err) +{ + /* If it's the first retry, initialize the other fields in *data. */ + if (data->retry == 0) + data->delay = initial_delay; + + again: + if (data->retry >= retries) { + nbdkit_debug ("could not recover after %d retries", retries); + return false; + } + + /* Since we will retry, log the original errno otherwise it will be lost. */ + nbdkit_debug ("%s failed: original errno = %d", method, *err); + + nbdkit_debug ("retry %d: waiting %d seconds before retrying", + data->retry+1, data->delay); + if (nbdkit_nanosleep (data->delay, 0) == -1) { + /* We could do this but it would overwrite the more important + * errno from the underlying data call. + */ + if (*err == 0) + *err = errno; + return false; + } + + /* Update *data in case we are called again. */ + data->retry++; + if (exponential_backoff) + data->delay *= 2; + + /* Reopen the connection. */ + h->reopens++; + if (next_ops->reopen (nxdata, + h->readonly || force_readonly, h->exportname) == -1) { + /* If the reopen fails we treat it the same way as a command + * failing. + */ + h->open = false; + *err = ESHUTDOWN; + goto again; + } + h->open = true; + + /* Retry the data command. */ + return true; +} + +static int +retry_pread (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + struct retry_handle *h = handle; + struct retry_data data = {0}; + int r; + + again: + if (! (h->open && valid_range (next_ops, nxdata, count, offset, false, err))) + r = -1; + else + r = next_ops->pread (nxdata, buf, count, offset, flags, err); + if (r == -1 && do_retry (h, &data, next_ops, nxdata, "pread", err)) + goto again; + + return r; +} + +/* Write. */ +static int +retry_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, + const void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + struct retry_handle *h = handle; + struct retry_data data = {0}; + int r; + + again: + if (h->reopens && force_readonly) { + *err = EROFS; + return -1; + } + if (! (h->open && valid_range (next_ops, nxdata, count, offset, true, err))) + r = -1; + else if (next_ops->can_write (nxdata) != 1) { + *err = EROFS; + r = -1; + } + else if (flags & NBDKIT_FLAG_FUA && + next_ops->can_fua (nxdata) <= NBDKIT_FUA_NONE) { + *err = EIO; + r = -1; + } + else + r = next_ops->pwrite (nxdata, buf, count, offset, flags, err); + if (r == -1 && do_retry (h, &data, next_ops, nxdata, "pwrite", err)) + goto again; + + return r; +} + +/* Trim. */ +static int +retry_trim (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, + uint32_t count, uint64_t offset, uint32_t flags, + int *err) +{ + struct retry_handle *h = handle; + struct retry_data data = {0}; + int r; + + again: + if (h->reopens && force_readonly) { + *err = EROFS; + return -1; + } + if (! (h->open && valid_range (next_ops, nxdata, count, offset, true, err))) + r = -1; + else if (next_ops->can_trim (nxdata) != 1) { + *err = EROFS; + r = -1; + } + else if (flags & NBDKIT_FLAG_FUA && + next_ops->can_fua (nxdata) <= NBDKIT_FUA_NONE) { + *err = EIO; + r = -1; + } + else + r = next_ops->trim (nxdata, count, offset, flags, err); + if (r == -1 && do_retry (h, &data, next_ops, nxdata, "trim", err)) + goto again; + + return r; +} + +/* Flush. */ +static int +retry_flush (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t flags, + int *err) +{ + struct retry_handle *h = handle; + struct retry_data data = {0}; + int r; + + again: + if (! h->open) + r = -1; + else if (next_ops->can_flush (nxdata) != 1) { + *err = EIO; + r = -1; + } + else + r = next_ops->flush (nxdata, flags, err); + if (r == -1 && do_retry (h, &data, next_ops, nxdata, "flush", err)) + goto again; + + return r; +} + +/* Zero. */ +static int +retry_zero (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, + uint32_t count, uint64_t offset, uint32_t flags, + int *err) +{ + struct retry_handle *h = handle; + struct retry_data data = {0}; + int r; + + again: + if (h->reopens && force_readonly) { + *err = EROFS; + return -1; + } + if (flags & NBDKIT_FLAG_FAST_ZERO && + (! h->open || next_ops->can_fast_zero (nxdata) != 1)) { + *err = EOPNOTSUPP; + return -1; + } + if (! (h->open && valid_range (next_ops, nxdata, count, offset, true, err))) + r = -1; + else if (next_ops->can_zero (nxdata) <= NBDKIT_ZERO_NONE) { + *err = EROFS; + r = -1; + } + else if (flags & NBDKIT_FLAG_FUA && + next_ops->can_fua (nxdata) <= NBDKIT_FUA_NONE) { + *err = EIO; + r = -1; + } + else + r = next_ops->zero (nxdata, count, offset, flags, err); + if (r == -1 && do_retry (h, &data, next_ops, nxdata, "zero", err)) + goto again; + + return r; +} + +/* Extents. */ +static int +retry_extents (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, + uint32_t count, uint64_t offset, uint32_t flags, + struct nbdkit_extents *extents, int *err) +{ + struct retry_handle *h = handle; + struct retry_data data = {0}; + CLEANUP_EXTENTS_FREE struct nbdkit_extents *extents2 = NULL; + int r; + size_t i; + + again: + if (! (h->open && valid_range (next_ops, nxdata, count, offset, false, err))) + r = -1; + else if (next_ops->can_extents (nxdata) != 1) { + *err = EIO; + r = -1; + } + else { + /* Each retry must begin with extents reset to the right beginning. */ + nbdkit_extents_free (extents2); + extents2 = nbdkit_extents_new (offset, next_ops->get_size (nxdata)); + if (extents2 == NULL) { + *err = errno; + return -1; /* Not worth a retry after ENOMEM. */ + } + r = next_ops->extents (nxdata, count, offset, flags, extents2, err); + } + if (r == -1 && do_retry (h, &data, next_ops, nxdata, "extents", err)) + goto again; + + if (r == 0) { + /* Transfer the successful extents back to the caller. */ + for (i = 0; i < nbdkit_extents_count (extents2); ++i) { + struct nbdkit_extent e = nbdkit_get_extent (extents2, i); + + if (nbdkit_add_extent (extents, e.offset, e.length, e.type) == -1) { + *err = errno; + return -1; + } + } + } + + return r; +} + +/* Cache. */ +static int +retry_cache (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, + uint32_t count, uint64_t offset, uint32_t flags, + int *err) +{ + struct retry_handle *h = handle; + struct retry_data data = {0}; + int r; + + again: + if (! h->open && (valid_range (next_ops, nxdata, count, offset, false, err))) + r = -1; + else if (next_ops->can_cache (nxdata) <= NBDKIT_CACHE_NONE) { + *err = EIO; + r = -1; + } + else + r = next_ops->cache (nxdata, count, offset, flags, err); + if (r == -1 && do_retry (h, &data, next_ops, nxdata, "cache", err)) + goto again; + + return r; +} + +static struct nbdkit_filter filter = { + .name = "retry", + .longname = "nbdkit retry filter", + .thread_model = retry_thread_model, + .config = retry_config, + .config_help = retry_config_help, + .open = retry_open, + .close = retry_close, + .pread = retry_pread, + .pwrite = retry_pwrite, + .trim = retry_trim, + .flush = retry_flush, + .zero = retry_zero, + .extents = retry_extents, + .cache = retry_cache, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/stats/Makefile.am b/filters/stats/Makefile.am new file mode 100644 index 0000000..be06a08 --- /dev/null +++ b/filters/stats/Makefile.am @@ -0,0 +1,67 @@ +# nbdkit +# Copyright (C) 2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-stats-filter.pod + +filter_LTLIBRARIES = nbdkit-stats-filter.la + +nbdkit_stats_filter_la_SOURCES = \ + stats.c \ + $(top_srcdir)/include/nbdkit-filter.h \ + $(NULL) + +nbdkit_stats_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include \ + -I$(top_srcdir)/common/utils \ + $(NULL) +nbdkit_stats_filter_la_CFLAGS = $(WARNINGS_CFLAGS) +nbdkit_stats_filter_la_LDFLAGS = \ + -module -avoid-version -shared $(NO_UNDEFINED_ON_WINDOWS) \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms \ + $(NULL) +nbdkit_stats_filter_la_LIBADD = \ + $(top_builddir)/common/utils/libutils.la \ + $(NULL) + +if HAVE_POD + +man_MANS = nbdkit-stats-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-stats-filter.1: nbdkit-stats-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/stats/Makefile.in b/filters/stats/Makefile.in new file mode 100644 index 0000000..26e58fe --- /dev/null +++ b/filters/stats/Makefile.in @@ -0,0 +1,907 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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install-info-am + +install-info-am: + +install-man: install-man1 + +install-pdf: install-pdf-am + +install-pdf-am: + +install-ps: install-ps-am + +install-ps-am: + +installcheck-am: + +maintainer-clean: maintainer-clean-am + -rm -f ./$(DEPDIR)/nbdkit_stats_filter_la-stats.Plo + -rm -f Makefile +maintainer-clean-am: distclean-am maintainer-clean-generic + +mostlyclean: mostlyclean-am + +mostlyclean-am: mostlyclean-compile mostlyclean-generic \ + mostlyclean-libtool + +pdf: pdf-am + +pdf-am: + +ps: ps-am + +ps-am: + +uninstall-am: uninstall-filterLTLIBRARIES uninstall-man + +uninstall-man: uninstall-man1 + +.MAKE: install-am install-strip + +.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-am clean \ + clean-filterLTLIBRARIES clean-generic clean-libtool \ + cscopelist-am ctags ctags-am distclean distclean-compile \ + distclean-generic distclean-libtool distclean-tags distdir dvi \ + dvi-am html html-am info info-am install install-am \ + install-data install-data-am install-dvi install-dvi-am \ + install-exec install-exec-am install-filterLTLIBRARIES \ + install-html install-html-am install-info install-info-am \ + install-man install-man1 install-pdf install-pdf-am install-ps \ + install-ps-am install-strip installcheck installcheck-am \ + installdirs maintainer-clean maintainer-clean-generic \ + mostlyclean mostlyclean-compile mostlyclean-generic \ + mostlyclean-libtool pdf pdf-am ps ps-am tags tags-am uninstall \ + uninstall-am uninstall-filterLTLIBRARIES uninstall-man \ + uninstall-man1 + +.PRECIOUS: Makefile + + +@HAVE_POD_TRUE@nbdkit-stats-filter.1: nbdkit-stats-filter.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/filters/stats/nbdkit-stats-filter.pod b/filters/stats/nbdkit-stats-filter.pod new file mode 100644 index 0000000..4fda092 --- /dev/null +++ b/filters/stats/nbdkit-stats-filter.pod @@ -0,0 +1,78 @@ +=head1 NAME + +nbdkit-stats-filter - display statistics about operations + +=head1 SYNOPSIS + + nbdkit --filter=stats PLUGIN statsfile=FILE [statsappend=true] + +=head1 DESCRIPTION + +C is a filter that displays statistics about NBD +operations, such as the number of bytes read and written. Statistics +are written to a file once when nbdkit exits. + +=head1 EXAMPLE + +In this example we run L over nbdkit to create an ext4 +filesystem on a RAM disk, and use the stats filter to display the +number of read, write and trim operations involved: + + $ nbdkit -U - --filter=stats memory 1G statsfile=/dev/stderr \ + --run ' + guestfish add-drive "" protocol:nbd server:unix:$unixsocket \ + discard:enable format:raw : \ + run : \ + mkfs ext4 /dev/sda + ' + total: 370 ops, 1.282993 s, 1.04 GiB, 827.29 MiB/s + read: 250 ops, 0.000364 s, 4.76 MiB, 12.78 GiB/s op, 3.71 MiB/s total + write: 78 ops, 0.175715 s, 32.64 MiB, 185.78 MiB/s op, 25.44 MiB/s total + trim: 33 ops, 0.000252 s, 1.00 GiB, 3968.25 GiB/s op, 798.13 MiB/s total + flush: 9 ops, 0.000002 s, 0 bytes, 0 bytes/s op, 0 bytes/s total + +=head1 PARAMETERS + +=over 4 + +=item BFILE + +The file where we write the stats. + +This parameter is required. + +=item B + +If set then we append to the file instead of replacing it. + +=back + +=head1 FILES + +=over 4 + +=item F<$filterdir/nbdkit-stats-filter.so> + +The filter. + +Use C to find the location of C<$filterdir>. + +=back + +=head1 VERSION + +C first appeared in nbdkit 1.14. + +=head1 SEE ALSO + +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2019 Red Hat Inc. diff --git a/filters/stats/stats.c b/filters/stats/stats.c new file mode 100644 index 0000000..687dd05 --- /dev/null +++ b/filters/stats/stats.c @@ -0,0 +1,391 @@ +/* nbdkit + * Copyright (C) 2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include + +#include "cleanup.h" +#include "tvdiff.h" + +static char *filename; +static bool append; +static FILE *fp; +static struct timeval start_t; + +typedef struct { + const char *name; + uint64_t ops; + uint64_t bytes; + uint64_t usecs; +} nbdstat; + +/* This lock protects all the stats. */ +static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER; +static nbdstat pread_st = { "read" }; +static nbdstat pwrite_st = { "write" }; +static nbdstat trim_st = { "trim" }; +static nbdstat zero_st = { "zero" }; +static nbdstat extents_st = { "extents" }; +static nbdstat cache_st = { "cache" }; +static nbdstat flush_st = { "flush" }; + +#define KiB 1024 +#define MiB 1048576 +#define GiB 1073741824 + +static char * +humansize (uint64_t bytes) +{ + int r; + char *ret; + + if (bytes < KiB) + r = asprintf (&ret, "%" PRIu64 " bytes", bytes); + else if (bytes < MiB) + r = asprintf (&ret, "%.2f KiB", bytes / (double)KiB); + else if (bytes < GiB) + r = asprintf (&ret, "%.2f MiB", bytes / (double)MiB); + else + r = asprintf (&ret, "%.2f GiB", bytes / (double)GiB); + if (r == -1) + ret = NULL; + return ret; +} + +static char * +humanrate (uint64_t bytes, uint64_t usecs) +{ + double secs = usecs / 1000000.0; + return secs != 0.0 ? humansize (bytes / secs) : NULL; +} + +static inline const char * +maybe (char *s) +{ + return s ? s : "(n/a)"; +} + +static void +print_stat (const nbdstat *st, int64_t usecs) +{ + if (st->ops > 0) { + char *size = humansize (st->bytes); + char *op_rate = humanrate (st->bytes, st->usecs); + char *total_rate = humanrate (st->bytes, usecs); + + fprintf (fp, "%s: %" PRIu64 " ops, %.6f s, %s, %s/s op, %s/s total\n", + st->name, st->ops, st->usecs / 1000000.0, maybe (size), + maybe (op_rate), maybe (total_rate)); + + free (size); + free (op_rate); + free (total_rate); + } +} + +static void +print_totals (uint64_t usecs) +{ + uint64_t ops = pread_st.ops + pwrite_st.ops + trim_st.ops + zero_st.ops + + extents_st.ops + flush_st.ops; + uint64_t bytes = pread_st.bytes + pwrite_st.bytes + trim_st.bytes + + zero_st.bytes; + char *size = humansize (bytes); + char *rate = humanrate (bytes, usecs); + + fprintf (fp, "total: %" PRIu64 " ops, %.6f s, %s, %s/s\n", + ops, usecs / 1000000.0, maybe (size), maybe (rate)); + + free (size); + free (rate); +} + +static inline void +print_stats (int64_t usecs) +{ + print_totals (usecs); + print_stat (&pread_st, usecs); + print_stat (&pwrite_st, usecs); + print_stat (&trim_st, usecs); + print_stat (&zero_st, usecs); + print_stat (&extents_st, usecs); + print_stat (&cache_st, usecs); + print_stat (&flush_st, usecs); + fflush (fp); +} + +static void +stats_unload (void) +{ + struct timeval now; + int64_t usecs; + + gettimeofday (&now, NULL); + usecs = tvdiff_usec (&start_t, &now); + if (fp && usecs > 0) { + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + print_stats (usecs); + } + + if (fp) + fclose (fp); + free (filename); +} + +static int +stats_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + int r; + + if (strcmp (key, "statsfile") == 0) { + free (filename); + filename = nbdkit_absolute_path (value); + if (filename == NULL) + return -1; + return 0; + } + else if (strcmp (key, "statsappend") == 0) { + r = nbdkit_parse_bool (value); + if (r == -1) + return -1; + append = r; + return 0; + } + + return next (nxdata, key, value); +} + +static int +stats_config_complete (nbdkit_next_config_complete *next, void *nxdata) +{ + if (filename == NULL) { + nbdkit_error ("stats filter requires statsfile parameter"); + return -1; + } + + return next (nxdata); +} + +static int +stats_get_ready (nbdkit_next_get_ready *next, void *nxdata, int thread_model) +{ + int fd; + + /* Using fopen("ae"/"we") would be more convenient, but as Haiku + * still lacks that, use this instead. Atomicity is not essential + * here since .config completes before threads that might fork, if + * we have to later add yet another fallback to fcntl(fileno()) for + * systems without O_CLOEXEC. + */ + fd = open (filename, + O_CLOEXEC | O_WRONLY | O_CREAT | (append ? O_APPEND : O_TRUNC), + 0666); + if (fd < 0) { + nbdkit_error ("open: %s: %m", filename); + return -1; + } + fp = fdopen (fd, append ? "a" : "w"); + if (fp == NULL) { + nbdkit_error ("fdopen: %s: %m", filename); + return -1; + } + + gettimeofday (&start_t, NULL); + + return next (nxdata); +} + +#define stats_config_help \ + "statsfile= (required) The file to place the log in.\n" \ + "statsappend= True to append to the log (default false).\n" + +static inline void +record_stat (nbdstat *st, uint32_t count, const struct timeval *start) +{ + struct timeval end; + uint64_t usecs; + + gettimeofday (&end, NULL); + usecs = tvdiff_usec (start, &end); + + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + st->ops++; + st->bytes += count; + st->usecs += usecs; +} + +/* Read. */ +static int +stats_pread (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + struct timeval start; + int r; + + gettimeofday (&start, NULL); + r = next_ops->pread (nxdata, buf, count, offset, flags, err); + if (r == 0) record_stat (&pread_st, count, &start); + return r; +} + +/* Write. */ +static int +stats_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, + const void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + struct timeval start; + int r; + + gettimeofday (&start, NULL); + r = next_ops->pwrite (nxdata, buf, count, offset, flags, err); + if (r == 0) record_stat (&pwrite_st, count, &start); + return r; +} + +/* Trim. */ +static int +stats_trim (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, + uint32_t count, uint64_t offset, uint32_t flags, + int *err) +{ + struct timeval start; + int r; + + gettimeofday (&start, NULL); + r = next_ops->trim (nxdata, count, offset, flags, err); + if (r == 0) record_stat (&trim_st, count, &start); + return r; +} + +/* Flush. */ +static int +stats_flush (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t flags, + int *err) +{ + struct timeval start; + int r; + + gettimeofday (&start, NULL); + r = next_ops->flush (nxdata, flags, err); + if (r == 0) record_stat (&flush_st, 0, &start); + return r; +} + +/* Zero. */ +static int +stats_zero (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, + uint32_t count, uint64_t offset, uint32_t flags, + int *err) +{ + struct timeval start; + int r; + + gettimeofday (&start, NULL); + r = next_ops->zero (nxdata, count, offset, flags, err); + if (r == 0) record_stat (&zero_st, count, &start); + return r; +} + +/* Extents. */ +static int +stats_extents (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, + uint32_t count, uint64_t offset, uint32_t flags, + struct nbdkit_extents *extents, int *err) +{ + struct timeval start; + int r; + + gettimeofday (&start, NULL); + r = next_ops->extents (nxdata, count, offset, flags, extents, err); + /* XXX There's a case for trying to determine how long the extents + * will be that are returned to the client (instead of simply using + * count), given the flags and the complex rules in the protocol. + */ + if (r == 0) record_stat (&extents_st, count, &start); + return r; +} + +/* Cache. */ +static int +stats_cache (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, + uint32_t count, uint64_t offset, uint32_t flags, + int *err) +{ + struct timeval start; + int r; + + gettimeofday (&start, NULL); + r = next_ops->cache (nxdata, count, offset, flags, err); + if (r == 0) record_stat (&cache_st, count, &start); + return r; +} + +static struct nbdkit_filter filter = { + .name = "stats", + .longname = "nbdkit stats filter", + .unload = stats_unload, + .config = stats_config, + .config_complete = stats_config_complete, + .config_help = stats_config_help, + .get_ready = stats_get_ready, + .pread = stats_pread, + .pwrite = stats_pwrite, + .trim = stats_trim, + .flush = stats_flush, + .zero = stats_zero, + .extents = stats_extents, + .cache = stats_cache, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/swab/Makefile.am b/filters/swab/Makefile.am new file mode 100644 index 0000000..7acaa6a --- /dev/null +++ b/filters/swab/Makefile.am @@ -0,0 +1,73 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = \ + nbdkit-swab-filter.pod \ + $(NULL) + +filter_LTLIBRARIES = nbdkit-swab-filter.la + +nbdkit_swab_filter_la_SOURCES = \ + swab.c \ + $(top_srcdir)/include/nbdkit-filter.h \ + $(NULL) + +nbdkit_swab_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include \ + -I$(top_srcdir)/common/utils \ + $(NULL) +nbdkit_swab_filter_la_CFLAGS = \ + $(WARNINGS_CFLAGS) \ + $(GNUTLS_CFLAGS) \ + $(NULL) +nbdkit_swab_filter_la_LDFLAGS = \ + -module -avoid-version -shared $(NO_UNDEFINED_ON_WINDOWS) \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms \ + $(NULL) +nbdkit_swab_filter_la_LIBADD = \ + $(top_builddir)/common/utils/libutils.la \ + $(GNUTLS_LIBS) \ + $(NULL) + +if HAVE_POD + +man_MANS = nbdkit-swab-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-swab-filter.1: nbdkit-swab-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/swab/Makefile.in b/filters/swab/Makefile.in new file mode 100644 index 0000000..1a9c051 --- /dev/null +++ b/filters/swab/Makefile.in @@ -0,0 +1,916 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# nbdkit +# Copyright (C) 2013-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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a/filters/swab/nbdkit-swab-filter.pod b/filters/swab/nbdkit-swab-filter.pod new file mode 100644 index 0000000..f850015 --- /dev/null +++ b/filters/swab/nbdkit-swab-filter.pod @@ -0,0 +1,101 @@ +=head1 NAME + +nbdkit-swab-filter - nbdkit filter for swapping byte order + +=head1 SYNOPSIS + + nbdkit --filter=swab PLUGIN [PLUGIN-ARGS...] [swab-bits=8|16|32|64] + +=head1 DESCRIPTION + +C is a filter for L which swaps bytes +in the underlying plugin. + +One use for this is to read disk images which were formatted on the +Atari Falcon, where the IDE controller is wired in reverse order. + +=head1 EXAMPLE + +=head2 Swap bytes from a disk image + + nbdkit --filter=swab file file=disk.img + +The above command serves the disk image F, swapping even and +odd bytes: + + disk.img 0 1 2 3 4 5 ... + ╳ ╳ ╳ + output 1 0 3 2 5 4 ... + +This filter truncates the size of the plugin down to the alignment +determined by swab-bits (since operating on an unaligned tail would be +awkward). If you need to round the image size up instead to access +the last few bytes, combine this filter with +L; fortunately, sector-based disk images +are already suitably sized. + +=head1 PARAMETERS + +=over 4 + +=item B + +This turns off the filter. + +=item B + +This is the default setting which swaps pairs of bytes. This is +suitable when reading and writing to Atari Falcon drives. + +=item B + +This swaps the endianness of each 4 byte word in the disk, ie: + + input 0 1 2 3 4 5 6 7 + + output 3 2 1 0 7 6 5 4 + +=item B + +This swaps the endianness of each 8 byte word in the disk, ie: + + input 0 1 2 3 4 5 6 7 + + output 7 6 5 4 3 2 1 0 + +This can be used to make L little endian +instead of big endian. + +=back + +=head1 FILES + +=over 4 + +=item F<$filterdir/nbdkit-swab-filter.so> + +The filter. + +Use C to find the location of C<$filterdir>. + +=back + +=head1 VERSION + +C first appeared in nbdkit 1.22. + +=head1 SEE ALSO + +L, +L, +L, +L, +L. + +=head1 AUTHORS + +François Revol + +=head1 COPYRIGHT + +Copyright (C) 2020 François Revol diff --git a/filters/swab/swab.c b/filters/swab/swab.c new file mode 100644 index 0000000..c9f4b06 --- /dev/null +++ b/filters/swab/swab.c @@ -0,0 +1,231 @@ +/* nbdkit + * Copyright (C) 2020 François Revol. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include + +#include + +#include "byte-swapping.h" +#include "isaligned.h" +#include "cleanup.h" +#include "rounding.h" + +/* Can only be 8 (filter disabled), 16, 32 or 64. */ +static int bits = 16; + +/* Called for each key=value passed on the command line. */ +static int +swab_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + int r; + + if (strcmp (key, "swab-bits") == 0) { + r = nbdkit_parse_int ("swab-bits", value, &bits); + if (r == -1) + return -1; + if (bits != 8 && bits != 16 && bits != 32 && bits != 64) { + nbdkit_error ("invalid swab-bits, must be 8, 16, 32 or 64"); + return -1; + } + return 0; + } + else + return next (nxdata, key, value); +} + +#define swab_config_help \ + "swab-bits=8|16|32|64 Size of byte swap (default 16)." + +/* Round size down to avoid issues at end of file. */ +static int64_t +swab_get_size (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + int64_t size = next_ops->get_size (nxdata); + + if (size == -1) + return -1; + return ROUND_DOWN (size, bits/8); +} + +/* The request must be aligned. + * XXX We could lift this restriction with more work. + */ +static bool +is_aligned (uint32_t count, uint64_t offset, int *err) +{ + if (!IS_ALIGNED (count, bits/8) || !IS_ALIGNED (offset, bits/8)) { + nbdkit_error ("swab: requests to this filter must be aligned"); + *err = EINVAL; + return false; + } + return true; +} + +/* Byte swap, works either from one buffer to another or in-place. */ +static void +buf_bswap (void *dest, const void *src, uint32_t count) +{ + uint32_t i; + uint16_t *d16, *s16; + uint32_t *d32, *s32; + uint64_t *d64, *s64; + + switch (bits) { + case 8: /* nothing */ break; + case 16: + d16 = (uint16_t *) dest; + s16 = (uint16_t *) src; + for (i = 0; i < count; i += 2) + *d16++ = bswap_16 (*s16++); + break; + case 32: + d32 = (uint32_t *) dest; + s32 = (uint32_t *) src; + for (i = 0; i < count; i += 4) + *d32++ = bswap_32 (*s32++); + break; + case 64: + d64 = (uint64_t *) dest; + s64 = (uint64_t *) src; + for (i = 0; i < count; i += 8) + *d64++ = bswap_64 (*s64++); + break; + } +} + +/* Read data. */ +static int +swab_pread (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + int r; + + if (!is_aligned (count, offset, err)) return -1; + + r = next_ops->pread (nxdata, buf, count, offset, flags, err); + if (r == -1) + return -1; + + /* for reads we can do it in-place */ + buf_bswap (buf, buf, count); + return 0; +} + +/* Write data. */ +static int +swab_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, const void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + CLEANUP_FREE uint16_t *block = NULL; + + if (!is_aligned (count, offset, err)) return -1; + + block = malloc (count); + if (block == NULL) { + *err = errno; + nbdkit_error ("malloc: %m"); + return -1; + } + + buf_bswap (block, buf, count); + + return next_ops->pwrite (nxdata, block, count, offset, flags, err); +} + +/* Trim data. */ +static int +swab_trim (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, uint32_t flags, + int *err) +{ + if (!is_aligned (count, offset, err)) return -1; + return next_ops->trim (nxdata, count, offset, flags, err); +} + +/* Zero data. */ +static int +swab_zero (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, uint32_t flags, + int *err) +{ + if (!is_aligned (count, offset, err)) return -1; + return next_ops->zero (nxdata, count, offset, flags, err); +} + +/* Extents. */ +static int +swab_extents (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, uint32_t flags, + struct nbdkit_extents *extents, int *err) +{ + if (!is_aligned (count, offset, err)) return -1; + return nbdkit_extents_aligned (next_ops, nxdata, count, offset, flags, + bits/8, extents, err); +} + +/* Cache. */ +static int +swab_cache (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, uint32_t flags, + int *err) +{ + if (!is_aligned (count, offset, err)) return -1; + return next_ops->cache (nxdata, count, offset, flags, err); +} + + +static struct nbdkit_filter filter = { + .name = "swab", + .longname = "nbdkit byte-swapping filter", + .config = swab_config, + .config_help = swab_config_help, + .get_size = swab_get_size, + .pread = swab_pread, + .pwrite = swab_pwrite, + .trim = swab_trim, + .zero = swab_zero, + .extents = swab_extents, + .cache = swab_cache, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/tar/Makefile.am b/filters/tar/Makefile.am new file mode 100644 index 0000000..30e973c --- /dev/null +++ b/filters/tar/Makefile.am @@ -0,0 +1,67 @@ +# nbdkit +# Copyright (C) 2019-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-tar-filter.pod + +filter_LTLIBRARIES = nbdkit-tar-filter.la + +nbdkit_tar_filter_la_SOURCES = \ + tar.c \ + $(top_srcdir)/include/nbdkit-filter.h \ + $(NULL) + +nbdkit_tar_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include \ + -I$(top_srcdir)/common/utils \ + $(NULL) +nbdkit_tar_filter_la_CFLAGS = $(WARNINGS_CFLAGS) +nbdkit_tar_filter_la_LDFLAGS = \ + -module -avoid-version -shared $(NO_UNDEFINED_ON_WINDOWS) \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms \ + $(NULL) +nbdkit_tar_filter_la_LIBADD = \ + $(top_builddir)/common/utils/libutils.la \ + $(NULL) + +if HAVE_POD + +man_MANS = nbdkit-tar-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-tar-filter.1: nbdkit-tar-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/tar/Makefile.in b/filters/tar/Makefile.in new file mode 100644 index 0000000..f4e64c2 --- /dev/null +++ b/filters/tar/Makefile.in @@ -0,0 +1,907 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2019-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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install-html install-html-am install-info install-info-am \ + install-man install-man1 install-pdf install-pdf-am install-ps \ + install-ps-am install-strip installcheck installcheck-am \ + installdirs maintainer-clean maintainer-clean-generic \ + mostlyclean mostlyclean-compile mostlyclean-generic \ + mostlyclean-libtool pdf pdf-am ps ps-am tags tags-am uninstall \ + uninstall-am uninstall-filterLTLIBRARIES uninstall-man \ + uninstall-man1 + +.PRECIOUS: Makefile + + +@HAVE_POD_TRUE@nbdkit-tar-filter.1: nbdkit-tar-filter.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/filters/tar/nbdkit-tar-filter.pod b/filters/tar/nbdkit-tar-filter.pod new file mode 100644 index 0000000..c7ff3a7 --- /dev/null +++ b/filters/tar/nbdkit-tar-filter.pod @@ -0,0 +1,120 @@ +=head1 NAME + +nbdkit-tar-filter - read and write files inside tar files without unpacking + +=head1 SYNOPSIS + + nbdkit file FILENAME.tar --filter=tar tar-entry=PATH_INSIDE_TAR + +=head1 EXAMPLES + +=head2 Serve a single file inside a tarball + + nbdkit file file.tar --filter=tar tar-entry=some/disk.img + guestfish --format=raw -a nbd://localhost + +=head2 Opening a disk image inside an OVA file + +The popular "Open Virtual Appliance" (OVA) format is really an +uncompressed tar file containing (usually) VMDK-format files, so you +could access one file in an OVA like this: + + $ tar tf rhel.ova + rhel.ovf + rhel-disk1.vmdk + rhel.mf + $ nbdkit -r file rhel.ova --filter=tar tar-entry=rhel-disk1.vmdk + $ guestfish --ro --format=vmdk -a nbd://localhost + +In this case the tarball is opened readonly (I<-r> option). The +plugin supports write access, but writing to the VMDK file in the +tarball does not change data checksums stored in other files (the +C file in this example), and as these will become incorrect +you probably won't be able to open the file with another tool +afterwards. + +=head2 Open a disk image inside a remote tar file + +You can use other plugins apart from L to +provide the tar file. For example if the tar file is located on a web +server use: + + nbdkit -r curl https://example.com/file.tar \ + --filter=tar tar-entry=disk.img + +=head2 Open a compressed tar file (read-only) + +This filter cannot handle compressed tar files itself, but you can +combine it with L or L: + + nbdkit file filename.tar.gz \ + --filter=tar tar-entry=disk.img --filter=gzip + nbdkit file filename.tar.xz \ + --filter=tar tar-entry=disk.img --filter=xz + +=head1 DESCRIPTION + +C is a filter which can read and writes files +inside an uncompressed tar file without unpacking the tar file. + +The tar file is provided by the underlying plugin. You must tell the +filter which entry in the tar file you wish to read and write using +the C parameter. C must exactly match the file +name in the tar index. Use C to list the index +of a tar file. + +This filter will B work directly on compressed tar files. You +have to combine it with another filter as shown in the example above. + +Use the nbdkit I<-r> flag to open the file readonly. This is the +safest option because it guarantees that the tar file will not be +modified. Without I<-r> writes will modify the tar file. + +The disk image cannot be resized. + +=head1 PARAMETERS + +=over 4 + +=item [B]PATH_INSIDE_TAR + +The path of the file inside the tarball to serve. This parameter is +required. It must exactly match the name stored in the tarball, so +use S> + +=item B + +=item B/PATH/TO/GTAR + +Specify the program name or full path of GNU tar, in case C on +C<$PATH> is not GNU tar. This filter requires GNU tar and will not +normally work with other tar programs (eg. on FreeBSD). + +=back + +=head1 VERSION + +C first appeared in nbdkit 1.22. It is derived +from C which first appeared in nbdkit 1.2. + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones. + +Based on the virt-v2v OVA importer written by Tomáš Golembiovský. + +=head1 COPYRIGHT + +Copyright (C) 2017-2020 Red Hat Inc. diff --git a/filters/tar/tar.c b/filters/tar/tar.c new file mode 100644 index 0000000..ab04115 --- /dev/null +++ b/filters/tar/tar.c @@ -0,0 +1,416 @@ +/* nbdkit + * Copyright (C) 2018-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include + +#include "cleanup.h" +#include "minmax.h" +#include "utils.h" + +static const char *entry; /* File within tar (tar-entry=...) */ +static const char *tar_program = "tar"; + +/* Offset and size within tarball. + * + * These are calculated once in the first connection that calls + * tar_prepare. They are protected by the lock. + */ +static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER; +static bool initialized = false; +static uint64_t tar_offset, tar_size; + +static int +tar_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + if (strcmp (key, "tar-entry") == 0) { + if (entry) { + nbdkit_error ("only one tar-entry parameter can be given"); + return -1; + } + entry = value; + return 0; + } + else if (strcmp (key, "tar") == 0) { + tar_program = value; + return 0; + } + + return next (nxdata, key, value); +} + +static int +tar_config_complete (nbdkit_next_config_complete *next, void *nxdata) +{ + if (entry == NULL) { + nbdkit_error ("you must supply the tar-entry= parameter"); + return -1; + } + + return next (nxdata); +} + +#define tar_config_help \ + "tar-entry= (required) The path inside the tar file to serve." + +static int +tar_thread_model (void) +{ + return NBDKIT_THREAD_MODEL_PARALLEL; +} + +struct handle { + /* These are copied from the globals during tar_prepare, so that we + * don't have to keep grabbing the lock on each request. + */ + uint64_t offset, size; +}; + +static void * +tar_open (nbdkit_next_open *next, nbdkit_backend *nxdata, + int readonly, const char *exportname, int is_tls) +{ + struct handle *h; + + if (next (nxdata, readonly, exportname) == -1) + return NULL; + + h = calloc (1, sizeof *h); + if (h == NULL) { + nbdkit_error ("calloc: %m"); + return NULL; + } + return h; +} + +static void +tar_close (void *handle) +{ + free (handle); +} + +/* Calculate the offset of the entry within the tarball. This is + * called with the lock held. The method used is described here: + * https://www.redhat.com/archives/libguestfs/2020-July/msg00017.html + */ +static int +calculate_offset_of_entry (struct nbdkit_next_ops *next_ops, void *nxdata) +{ + const size_t bufsize = 65536; + char output[] = "/tmp/tarXXXXXX"; + int fd; + FILE *fp; + CLEANUP_FREE char *cmd = NULL; + size_t cmdlen = 0; + CLEANUP_FREE char *buf = NULL; + int64_t i, copysize; + bool scanned_ok = false; + + assert (entry); + + /* Temporary file to capture the output from the tar command. */ + fd = mkstemp (output); + if (fd == -1) { + nbdkit_error ("mkstemp: %m"); + return -1; + } + close (fd); + + /* Construct the tar command to examine the tar file. */ + fp = open_memstream (&cmd, &cmdlen); + if (fp == NULL) { + nbdkit_error ("open_memstream: %m"); + return -1; + } + fprintf (fp, "LANG=C "); + shell_quote (tar_program, fp); + fprintf (fp, " --no-auto-compress -t --block-number -v -f - "); + shell_quote (entry, fp); + fprintf (fp, " > "); + shell_quote (output, fp); + /* Unfortunately we have to hide stderr since we are + * expecting tar to warn: + * tar: Unexpected EOF in archive + * tar: Error is not recoverable: exiting now + * when we close the connection abruptly. + */ + fprintf (fp, " 2>/dev/null"); + if (fclose (fp) == EOF) { + nbdkit_error ("memstream failed: %m"); + return -1; + } + + /* Prepare the copy buffer and copy size. */ + buf = malloc (bufsize); + if (buf == NULL) { + nbdkit_error ("malloc: %m"); + return -1; + } + copysize = next_ops->get_size (nxdata); + if (copysize == -1) + return -1; + + /* Run the tar command. */ + nbdkit_debug ("%s", cmd); + fp = popen (cmd, "w"); + if (fp == NULL) { + nbdkit_error ("tar: %m"); + return -1; + } + + /* Now loop, writing data from the plugin (the tar file) until we + * detect that tar has written something to the output file or we + * run out of plugin. We're making the assumption that the plugin + * is not going to be sparse, which is probably true of most tar + * files. + */ + for (i = 0; i < copysize; i += bufsize) { + int err, r; + const int64_t count = MIN (bufsize, copysize-i); + int64_t j; + struct stat statbuf; + + r = next_ops->pread (nxdata, buf, count, i, 0, &err); + if (r == -1) { + errno = err; + nbdkit_error ("pread: %m"); + pclose (fp); + return -1; + } + for (j = 0; j < count;) { + size_t written = fwrite (&buf[j], 1, count-j, fp); + if (written == 0) { + nbdkit_error ("tar: error writing to subprocess"); + pclose (fp); + return -1; + } + j += written; + } + + /* Did we get something in the output file yet? */ + if (stat (output, &statbuf) == 0 && statbuf.st_size > 0) + break; + } + pclose (fp); + + /* Open the tar output and try to parse it. */ + fp = fopen (output, "r"); + if (fp == NULL) { + nbdkit_error ("%s: %m", output); + return -1; + } + scanned_ok = fscanf (fp, "block %" SCNu64 ": %*s %*s %" SCNu64, + &tar_offset, &tar_size) == 2; + fclose (fp); + unlink (output); + + if (!scanned_ok) { + nbdkit_error ("tar subcommand failed, " + "check that the file really exists in the tarball"); + return -1; + } + + /* Adjust the offset: Add 1 for the tar header, then multiply by the + * block size. + */ + tar_offset = (tar_offset+1) * 512; + + nbdkit_debug ("tar: %s found at offset %" PRIu64 ", size %" PRIu64, + entry, tar_offset, tar_size); + + /* Check it looks sensible. XXX We ought to check it doesn't exceed + * the size of the tar file. + */ + if (tar_offset >= INT64_MAX || tar_size >= INT64_MAX) { + nbdkit_error ("internal error: calculated offset and size are wrong"); + return -1; + } + + initialized = true; + + return 0; +} + +static int +tar_prepare (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, int readonly) +{ + struct handle *h = handle; + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&lock); + + if (!initialized) { + if (calculate_offset_of_entry (next_ops, nxdata) == -1) + return -1; + } + + assert (initialized); + assert (tar_offset > 0); + h->offset = tar_offset; + h->size = tar_size; + return 0; +} + +/* Get the file size. */ +static int64_t +tar_get_size (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + struct handle *h = handle; + int64_t size; + + /* We must call underlying get_size even though we don't use the + * result, because it caches the plugin size in server/backend.c. + */ + size = next_ops->get_size (nxdata); + if (size == -1) + return -1; + + return h->size; +} + +/* Read data from the file. */ +static int +tar_pread (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, void *buf, uint32_t count, uint64_t offs, + uint32_t flags, int *err) +{ + struct handle *h = handle; + return next_ops->pread (nxdata, buf, count, offs + h->offset, flags, err); +} + +/* Write data to the file. */ +static int +tar_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, const void *buf, uint32_t count, uint64_t offs, + uint32_t flags, int *err) +{ + struct handle *h = handle; + return next_ops->pwrite (nxdata, buf, count, offs + h->offset, flags, err); +} + +/* Trim data. */ +static int +tar_trim (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offs, uint32_t flags, + int *err) +{ + struct handle *h = handle; + return next_ops->trim (nxdata, count, offs + h->offset, flags, err); +} + +/* Zero data. */ +static int +tar_zero (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offs, uint32_t flags, + int *err) +{ + struct handle *h = handle; + return next_ops->zero (nxdata, count, offs + h->offset, flags, err); +} + +/* Extents. */ +static int +tar_extents (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offs, uint32_t flags, + struct nbdkit_extents *extents, int *err) +{ + struct handle *h = handle; + size_t i; + CLEANUP_EXTENTS_FREE struct nbdkit_extents *extents2 = NULL; + struct nbdkit_extent e; + + extents2 = nbdkit_extents_new (offs + h->offset, h->offset + h->size); + if (extents2 == NULL) { + *err = errno; + return -1; + } + if (next_ops->extents (nxdata, count, offs + h->offset, + flags, extents2, err) == -1) + return -1; + + for (i = 0; i < nbdkit_extents_count (extents2); ++i) { + e = nbdkit_get_extent (extents2, i); + e.offset -= h->offset; + if (nbdkit_add_extent (extents, e.offset, e.length, e.type) == -1) { + *err = errno; + return -1; + } + } + return 0; +} + +/* Cache data. */ +static int +tar_cache (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offs, uint32_t flags, + int *err) +{ + struct handle *h = handle; + return next_ops->cache (nxdata, count, offs + h->offset, flags, err); +} + +static struct nbdkit_filter filter = { + .name = "tar", + .longname = "nbdkit tar filter", + .config = tar_config, + .config_complete = tar_config_complete, + .config_help = tar_config_help, + .thread_model = tar_thread_model, + .open = tar_open, + .close = tar_close, + .prepare = tar_prepare, + .get_size = tar_get_size, + .pread = tar_pread, + .pwrite = tar_pwrite, + .trim = tar_trim, + .zero = tar_zero, + .extents = tar_extents, + .cache = tar_cache, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/tls-fallback/Makefile.am b/filters/tls-fallback/Makefile.am new file mode 100644 index 0000000..516c2cc --- /dev/null +++ b/filters/tls-fallback/Makefile.am @@ -0,0 +1,63 @@ +# nbdkit +# Copyright (C) 2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-tls-fallback-filter.pod + +filter_LTLIBRARIES = nbdkit-tls-fallback-filter.la + +nbdkit_tls_fallback_filter_la_SOURCES = \ + tls-fallback.c \ + $(top_srcdir)/include/nbdkit-filter.h \ + $(NULL) + +nbdkit_tls_fallback_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include \ + $(NULL) +nbdkit_tls_fallback_filter_la_CFLAGS = $(WARNINGS_CFLAGS) +nbdkit_tls_fallback_filter_la_LDFLAGS = \ + -module -avoid-version -shared $(NO_UNDEFINED_ON_WINDOWS) \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms \ + $(NULL) + +if HAVE_POD + +man_MANS = nbdkit-tls-fallback-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-tls-fallback-filter.1: nbdkit-tls-fallback-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/tls-fallback/Makefile.in b/filters/tls-fallback/Makefile.in new file mode 100644 index 0000000..21d0574 --- /dev/null +++ b/filters/tls-fallback/Makefile.in @@ -0,0 +1,902 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# nbdkit +# Copyright (C) 2013-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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$(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/filters/tls-fallback/nbdkit-tls-fallback-filter.pod b/filters/tls-fallback/nbdkit-tls-fallback-filter.pod new file mode 100644 index 0000000..2d4d1d6 --- /dev/null +++ b/filters/tls-fallback/nbdkit-tls-fallback-filter.pod @@ -0,0 +1,73 @@ +=head1 NAME + +nbdkit-tls-fallback-filter - nbdkit TLS protection filter + +=head1 SYNOPSIS + + nbdkit --tls=on --filter=tls-fallback plugin [plugin-args...] + [tlsreadme=MESSAGE] + +=head1 DESCRIPTION + +C is designed to be used when offering a +connection that allows but does not require TLS from clients, in order +to offer safe alternative content to plaintext clients, only exposing +the underlying plugin to authenticated users. This may provide a +nicer failure mode for plaintext clients than the harsher C. + +When this filter detects a plaintext connection, it ignores the +client's export name, and provides a single read-only export with 512 +bytes of data and content that defaults to the message "This NBD +server requires TLS authentication before it will serve useful data." + +When using this filter, it is recommended to place this filter first +in the command line, to reduce the chance that any work done by +C<.open> in earlier filters can be exploited by plaintext connections +as a denial of service attack to starve further authenticated +connections. Note that this filter will fail to load if the plugin +requests the C thread model, as a plaintext +client holding its connection open indefinitely would be such a +starvation. + +=head1 PARAMETERS + +=over 4 + +=item BMESSAGE + +This optional parameter can be used to use C as the contents +of the dummy export exposed to plaintext clients, using trailing NUL +bytes to round the size up to 512 bytes. + +=back + +=head1 FILES + +=over 4 + +=item F<$filterdir/nbdkit-tls-fallback-filter.so> + +The filter. + +Use C to find the location of C<$filterdir>. + +=back + +=head1 VERSION + +C first appeared in nbdkit 1.22. + +=head1 SEE ALSO + +L, +L, +L. + +=head1 AUTHORS + +Eric Blake + +=head1 COPYRIGHT + +Copyright (C) 2020 Red Hat Inc. diff --git a/filters/tls-fallback/tls-fallback.c b/filters/tls-fallback/tls-fallback.c new file mode 100644 index 0000000..822748b --- /dev/null +++ b/filters/tls-fallback/tls-fallback.c @@ -0,0 +1,198 @@ +/* nbdkit + * Copyright (C) 2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include + +#include + +/* Needed to shut up newer gcc about use of strncpy on our message buffer */ +#if __GNUC__ >= 8 +#define NONSTRING __attribute__ ((nonstring)) +#else +#define NONSTRING +#endif + +static char message[512] NONSTRING = "This NBD server requires TLS " + "authentication before it will serve useful data.\n"; + +/* Called for each key=value passed on the command line. */ +static int +tls_fallback_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + if (strcmp (key, "tlsreadme") == 0) { + strncpy (message, value, sizeof message); /* Yes, we really mean strncpy */ + return 0; + } + return next (nxdata, key, value); +} + +#define tls_fallback_config_help \ + "tlsreadme= Alternative contents for the plaintext dummy export.\n" + +int +tls_fallback_get_ready (nbdkit_next_get_ready *next, void *nxdata, + int thread_model) +{ + if (thread_model == NBDKIT_THREAD_MODEL_SERIALIZE_CONNECTIONS) { + nbdkit_error ("the tls-fallback filter requires parallel connection " + "support"); + return -1; + } + return next (nxdata); +} + +/* TODO: list_exports needs is_tls parameter */ + +/* Helper for determining if this connection is insecure. This works + * because we can treat all handles on a binary basis: secure or + * insecure, which lets .open get away without allocating a more + * complex handle. + */ +#define NOT_TLS (handle == &message) + +static void * +tls_fallback_open (nbdkit_next_open *next, void *nxdata, int readonly, + const char *exportname, int is_tls) +{ + /* We do NOT want to call next() when insecure, because we don't + * know how long it will take. + */ + if (!is_tls) + return &message; /* See NOT_TLS for this choice of handle */ + if (next (nxdata, readonly, exportname) == -1) + return NULL; + return NBDKIT_HANDLE_NOT_NEEDED; +} + +/* When insecure, override any plugin .can_FOO not gated by another in + * order to avoid an information leak. (can_write gates can_trim, + * can_zero, can_fast_zero, and can_fua). + */ + +static int64_t +tls_fallback_get_size (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + if (NOT_TLS) + return sizeof message; + return next_ops->get_size (nxdata); +} + +static int +tls_fallback_can_write (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + if (NOT_TLS) + return 0; + return next_ops->can_write (nxdata); +} + +static int +tls_fallback_can_flush (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + if (NOT_TLS) + return 0; + return next_ops->can_flush (nxdata); +} + +static int +tls_fallback_is_rotational (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + if (NOT_TLS) + return 0; + return next_ops->is_rotational (nxdata); +} + +static int +tls_fallback_can_extents (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + if (NOT_TLS) + return 0; + return next_ops->can_extents (nxdata); +} + +static int +tls_fallback_can_multi_conn (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + if (NOT_TLS) + return 0; + return next_ops->can_multi_conn (nxdata); +} + +static int +tls_fallback_can_cache (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + if (NOT_TLS) + return NBDKIT_CACHE_NONE; + return next_ops->can_cache (nxdata); +} + +static int +tls_fallback_pread (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, void *b, uint32_t count, uint64_t offs, + uint32_t flags, int *err) +{ + if (NOT_TLS) { + memcpy (b, message + offs, count); + return 0; + } + return next_ops->pread (nxdata, b, count, offs, flags, err); +} + +static struct nbdkit_filter filter = { + .name = "tls-fallback", + .longname = "nbdkit tls-fallback filter", + .config = tls_fallback_config, + .config_help = tls_fallback_config_help, + .get_ready = tls_fallback_get_ready, + /* XXX .init_exports needs is_tls parameter */ + .open = tls_fallback_open, + .get_size = tls_fallback_get_size, + .can_write = tls_fallback_can_write, + .can_flush = tls_fallback_can_flush, + .is_rotational = tls_fallback_is_rotational, + .can_extents = tls_fallback_can_extents, + .can_multi_conn = tls_fallback_can_multi_conn, + .can_cache = tls_fallback_can_cache, + .pread = tls_fallback_pread, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/truncate/Makefile.am b/filters/truncate/Makefile.am new file mode 100644 index 0000000..3b3d6ac --- /dev/null +++ b/filters/truncate/Makefile.am @@ -0,0 +1,67 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-truncate-filter.pod + +filter_LTLIBRARIES = nbdkit-truncate-filter.la + +nbdkit_truncate_filter_la_SOURCES = \ + truncate.c \ + $(top_srcdir)/include/nbdkit-filter.h \ + $(NULL) + +nbdkit_truncate_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include \ + -I$(top_srcdir)/common/utils \ + $(NULL) +nbdkit_truncate_filter_la_CFLAGS = $(WARNINGS_CFLAGS) +nbdkit_truncate_filter_la_LDFLAGS = \ + -module -avoid-version -shared $(NO_UNDEFINED_ON_WINDOWS) \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms \ + $(NULL) +nbdkit_truncate_filter_la_LIBADD = \ + $(top_builddir)/common/utils/libutils.la \ + $(NULL) + +if HAVE_POD + +man_MANS = nbdkit-truncate-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-truncate-filter.1: nbdkit-truncate-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/truncate/Makefile.in b/filters/truncate/Makefile.in new file mode 100644 index 0000000..0b42aa6 --- /dev/null +++ b/filters/truncate/Makefile.in @@ -0,0 +1,909 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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ctags-am distclean distclean-compile \ + distclean-generic distclean-libtool distclean-tags distdir dvi \ + dvi-am html html-am info info-am install install-am \ + install-data install-data-am install-dvi install-dvi-am \ + install-exec install-exec-am install-filterLTLIBRARIES \ + install-html install-html-am install-info install-info-am \ + install-man install-man1 install-pdf install-pdf-am install-ps \ + install-ps-am install-strip installcheck installcheck-am \ + installdirs maintainer-clean maintainer-clean-generic \ + mostlyclean mostlyclean-compile mostlyclean-generic \ + mostlyclean-libtool pdf pdf-am ps ps-am tags tags-am uninstall \ + uninstall-am uninstall-filterLTLIBRARIES uninstall-man \ + uninstall-man1 + +.PRECIOUS: Makefile + + +@HAVE_POD_TRUE@nbdkit-truncate-filter.1: nbdkit-truncate-filter.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/filters/truncate/nbdkit-truncate-filter.pod b/filters/truncate/nbdkit-truncate-filter.pod new file mode 100644 index 0000000..50ab8c7 --- /dev/null +++ b/filters/truncate/nbdkit-truncate-filter.pod @@ -0,0 +1,122 @@ +=head1 NAME + +nbdkit-truncate-filter - change the size of plugins + +=head1 SYNOPSIS + + nbdkit --filter=truncate plugin [truncate=SIZE] + [round-up=N] [round-down=N] + +=head1 DESCRIPTION + +C is a filter that changes the size of +the underlying plugin. It can: + +=over 4 + +=item * + +Make the plugin smaller (truncate it). Use the C +parameter to set the smaller size. + +=item * + +Make the plugin larger (the additional bytes read back as zeroes). +Use C to set the larger size. + +=item * + +Round the size of the plugin up or down to the next multiple of C. +Use either C or C. + +=back + +A common use for this filter is to handle NBD clients which have a +problem dealing with device sizes which are not a multiple of 512 +bytes. Use C to round the size up to the next multiple +of 512 bytes. If the size is already a multiple of 512 bytes then +this has no effect. + +=head1 PARAMETERS + +=over 4 + +=item BSIZE + +Set the absolute size in bytes of the apparent device. This may be +smaller or larger or the same as the underlying plugin. + +If the size is larger than the underlying plugin, reading the extra +space returns zeroes. Writes are also permitted to the extra space, +but you must only write zeroes (any attempts to write non-zero bytes +will return an error back to the client). + +This parameter is optional. + +=item BN + +Round the size up to the next multiple of C bytes. If the size of +the underlying plugin is already a multiple of C bytes, this has no +effect. + +This option is useful when combined with other filters (such as +L, L, or +L) that normally round down due to a larger +granularity, in order to access the last few bytes of a file that +would otherwise be rendered inaccessible. + +This parameter is optional. + +=item BN + +Round the size down to a multiple of C bytes. If the size of the +underlying plugin is already a multiple of C bytes, this has no +effect. + +This parameter is optional. + +=back + +=head1 EXAMPLES + +Serve a file as if it were a block device that insists on 4k +alignment, while still allowing access to any unaligned bytes at the +end of the file: + + nbdkit --filter=blocksize --filter=truncate file /path/to/file \ + minblock=4k round-up=4k + +=head1 FILES + +=over 4 + +=item F<$filterdir/nbdkit-truncate-filter.so> + +The filter. + +Use C to find the location of C<$filterdir>. + +=back + +=head1 VERSION + +C first appeared in nbdkit 1.6. + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2018 Red Hat Inc. diff --git a/filters/truncate/truncate.c b/filters/truncate/truncate.c new file mode 100644 index 0000000..00b5d8c --- /dev/null +++ b/filters/truncate/truncate.c @@ -0,0 +1,438 @@ +/* nbdkit + * Copyright (C) 2018-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "cleanup.h" +#include "ispowerof2.h" +#include "iszero.h" +#include "rounding.h" + +/* These are the parameters. */ +static int64_t truncate_size = -1; +static unsigned round_up = 0, round_down = 0; + +static int +parse_round_param (const char *key, const char *value, unsigned *ret) +{ + int64_t r; + unsigned u; + + /* Parse it as a "size" quantity so we allow round-up=1M and similar. */ + r = nbdkit_parse_size (value); + if (r == -1) + return -1; + + /* Must not be zero or larger than an unsigned int. */ + if (r == 0) { + nbdkit_error ("if set, the %s parameter must be > 0", key); + return -1; + } + if (r > UINT_MAX) { + nbdkit_error ("the %s parameter is too large", key); + return -1; + } + u = r; + + /* Must be a power of 2. We could relax this in future. */ + if (!is_power_of_2 (u)) { + nbdkit_error ("the %s parameter must be a power of 2", key); + return -1; + } + + *ret = u; + return 0; +} + +/* Called for each key=value passed on the command line. */ +static int +truncate_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + if (strcmp (key, "truncate") == 0) { + truncate_size = nbdkit_parse_size (value); + if (truncate_size == -1) + return -1; + return 0; + } + else if (strcmp (key, "round-up") == 0) { + return parse_round_param (key, value, &round_up); + } + else if (strcmp (key, "round-down") == 0) { + return parse_round_param (key, value, &round_down); + } + else + return next (nxdata, key, value); +} + +#define truncate_config_help \ + "truncate= The new size.\n" \ + "round-up= Round up to next multiple of N.\n" \ + "round-down= Round down to multiple of N." + +/* Per-connection state. Until the NBD protocol gains dynamic resize + * support, each connection remembers the size of the underlying + * plugin at open (even if that size differs between connections + * because the plugin tracks external resize effects). + */ +struct handle { + /* The real size of the underlying plugin. */ + uint64_t real_size; + + /* The calculated size after applying the parameters. */ + uint64_t size; +}; + +/* Open a connection. */ +static void * +truncate_open (nbdkit_next_open *next, void *nxdata, + int readonly, const char *exportname, int is_tls) +{ + struct handle *h; + + if (next (nxdata, readonly, exportname) == -1) + return NULL; + + h = malloc (sizeof *h); /* h is populated during .prepare */ + if (h == NULL) { + nbdkit_error ("malloc: %m"); + return NULL; + } + + return h; +} + +static void +truncate_close (void *handle) +{ + struct handle *h = handle; + + free (h); +} + +/* In prepare, force a call to next_ops->get_size in order to set + * per-connection real_size & size; these values are not changed + * during the life of the connection. + */ +static int +truncate_prepare (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, int readonly) +{ + int64_t r; + struct handle *h = handle; + + r = next_ops->get_size (nxdata); + if (r == -1) + return -1; + + h->real_size = h->size = r; + + /* The truncate, round-up and round-down parameters are treated as + * separate operations. It's possible to specify more than one, + * although perhaps not very useful. + */ + if (truncate_size >= 0) + h->size = truncate_size; + if (round_up > 0) { + if (ROUND_UP (h->size, round_up) > INT64_MAX) { + nbdkit_error ("cannot round size %" PRId64 " up to next boundary of %u", + h->size, round_up); + return -1; + } + h->size = ROUND_UP (h->size, round_up); + } + if (round_down > 0) + h->size = ROUND_DOWN (h->size, round_down); + + return r >= 0 ? 0 : -1; +} + +/* Get the size. */ +static int64_t +truncate_get_size (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + struct handle *h = handle; + + /* If the NBD protocol and nbdkit adds dynamic resize, we'll need a + * rwlock where get_size holds write lock and all other ops hold + * read lock. Until then, NBD sizes are unchanging (even if the + * underlying plugin can react to external size changes), so just + * returned what we cached at connection open. + */ + return h->size; +} + +/* Advertise extents support. */ +static int +truncate_can_extents (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + /* Advertise unconditional support for the image tail, but also call + * into next_ops to ensure next_ops->extents doesn't fail later. + */ + int r = next_ops->can_extents (nxdata); + if (r == -1) + return -1; + return 1; +} + +/* Override the plugin's .can_fast_zero, because zeroing a tail is fast. */ +static int +truncate_can_fast_zero (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + /* Cache next_ops->can_fast_zero now, so later calls don't fail, + * even though we override the answer here. + */ + int r = next_ops->can_fast_zero (nxdata); + if (r == -1) + return -1; + return 1; +} + +/* Read data. */ +static int +truncate_pread (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + int r; + uint32_t n; + struct handle *h = handle; + + if (offset < h->real_size) { + if (offset + count <= h->real_size) + n = count; + else + n = h->real_size - offset; + r = next_ops->pread (nxdata, buf, n, offset, flags, err); + if (r == -1) + return -1; + count -= n; + buf += n; + } + + if (count > 0) + memset (buf, 0, count); + + return 0; +} + +/* Write data. */ +static int +truncate_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, + const void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + int r; + uint32_t n; + struct handle *h = handle; + + if (offset < h->real_size) { + if (offset + count <= h->real_size) + n = count; + else + n = h->real_size - offset; + r = next_ops->pwrite (nxdata, buf, n, offset, flags, err); + if (r == -1) + return -1; + count -= n; + buf += n; + } + + if (count > 0) { + /* The caller must be writing zeroes, else it's an error. */ + if (!is_zero (buf, count)) { + nbdkit_error ("truncate: write beyond end of underlying device"); + *err = ENOSPC; + return -1; + } + } + + return 0; +} + +/* Trim data. */ +static int +truncate_trim (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + uint32_t n; + struct handle *h = handle; + + if (offset < h->real_size) { + if (offset + count <= h->real_size) + n = count; + else + n = h->real_size - offset; + return next_ops->trim (nxdata, n, offset, flags, err); + } + return 0; +} + +/* Zero data. */ +static int +truncate_zero (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + uint32_t n; + struct handle *h = handle; + + if (offset < h->real_size) { + if (offset + count <= h->real_size) + n = count; + else + n = h->real_size - offset; + if (flags & NBDKIT_FLAG_FAST_ZERO && + next_ops->can_fast_zero (nxdata) == 0) { + *err = ENOTSUP; + return -1; + } + return next_ops->zero (nxdata, n, offset, flags, err); + } + return 0; +} + +/* Extents. */ +static int +truncate_extents (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, + uint32_t flags, struct nbdkit_extents *extents, int *err) +{ + uint32_t n; + struct handle *h = handle; + CLEANUP_EXTENTS_FREE struct nbdkit_extents *extents2 = NULL; + size_t i; + + /* If the entire request is beyond the end of the underlying plugin + * then this is the easy case: return a hole up to the end of the + * file. + */ + if (offset >= h->real_size) { + int r = nbdkit_add_extent (extents, + h->real_size, truncate_size - h->real_size, + NBDKIT_EXTENT_ZERO|NBDKIT_EXTENT_HOLE); + if (r == -1) + *err = errno; + return r; + } + + /* We're asked first for extents information about the plugin, then + * possibly (if truncating larger) for the hole after the plugin. + * Since we're not required to provide all of this information, the + * easiest thing is to only return data from the plugin. We will be + * called later about the hole. However we do need to make sure + * that the extents array is truncated to the real size, hence we + * have to create a new extents array, ask the plugin, then copy the + * returned data to the original array. + */ + extents2 = nbdkit_extents_new (offset, h->real_size); + if (extents2 == NULL) { + *err = errno; + return -1; + } + if (offset + count <= h->real_size) + n = count; + else + n = h->real_size - offset; + if (next_ops->extents (nxdata, n, offset, flags, extents2, err) == -1) + return -1; + + for (i = 0; i < nbdkit_extents_count (extents2); ++i) { + struct nbdkit_extent e = nbdkit_get_extent (extents2, i); + + if (nbdkit_add_extent (extents, e.offset, e.length, e.type) == -1) { + *err = errno; + return -1; + } + } + + return 0; +} + +/* Cache. */ +static int +truncate_cache (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + int r; + uint32_t n; + struct handle *h = handle; + + if (offset < h->real_size) { + if (offset + count <= h->real_size) + n = count; + else + n = h->real_size - offset; + r = next_ops->cache (nxdata, n, offset, flags, err); + if (r == -1) + return -1; + } + + return 0; +} + +static struct nbdkit_filter filter = { + .name = "truncate", + .longname = "nbdkit truncate filter", + .config = truncate_config, + .config_help = truncate_config_help, + .can_extents = truncate_can_extents, + .open = truncate_open, + .close = truncate_close, + .prepare = truncate_prepare, + .get_size = truncate_get_size, + .can_fast_zero = truncate_can_fast_zero, + .pread = truncate_pread, + .pwrite = truncate_pwrite, + .trim = truncate_trim, + .zero = truncate_zero, + .extents = truncate_extents, + .cache = truncate_cache, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/xz/Makefile.am b/filters/xz/Makefile.am new file mode 100644 index 0000000..63bbd1c --- /dev/null +++ b/filters/xz/Makefile.am @@ -0,0 +1,78 @@ +# nbdkit +# Copyright (C) 2013-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-xz-filter.pod + +if HAVE_LIBLZMA + +filter_LTLIBRARIES = nbdkit-xz-filter.la + +nbdkit_xz_filter_la_SOURCES = \ + blkcache.c \ + blkcache.h \ + xz.c \ + xzfile.c \ + xzfile.h \ + $(top_srcdir)/include/nbdkit-filter.h \ + $(NULL) + +nbdkit_xz_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/utils \ + $(NULL) +nbdkit_xz_filter_la_CFLAGS = \ + $(WARNINGS_CFLAGS) \ + $(LIBLZMA_CFLAGS) \ + $(NULL) +nbdkit_xz_filter_la_LIBADD = \ + $(LIBLZMA_LIBS) \ + $(top_builddir)/common/utils/libutils.la \ + $(NULL) +nbdkit_xz_filter_la_LDFLAGS = \ + -module -avoid-version -shared $(NO_UNDEFINED_ON_WINDOWS) \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms \ + $(NULL) + +if HAVE_POD + +man_MANS = nbdkit-xz-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-xz-filter.1: nbdkit-xz-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD + +endif diff --git a/filters/xz/Makefile.in b/filters/xz/Makefile.in new file mode 100644 index 0000000..955be37 --- /dev/null +++ b/filters/xz/Makefile.in @@ -0,0 +1,945 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2013-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# nbdkit +# Copyright (C) 2013-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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+@HAVE_LIBLZMA_TRUE@@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_LIBLZMA_TRUE@@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/filters/xz/blkcache.c b/filters/xz/blkcache.c new file mode 100644 index 0000000..7a5c9b5 --- /dev/null +++ b/filters/xz/blkcache.c @@ -0,0 +1,145 @@ +/* nbdkit + * Copyright (C) 2013 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include + +#include + +#include "blkcache.h" + +/* Implemented as a very simple LRU list with a fixed depth. */ +struct blkcache { + size_t maxdepth; + struct block *blocks; + blkcache_stats stats; +}; + +struct block { + uint64_t start; + uint64_t size; + char *data; +}; + +blkcache * +new_blkcache (size_t maxdepth) +{ + blkcache *c; + + c = malloc (sizeof *c); + if (!c) { + nbdkit_error ("malloc: %m"); + return NULL; + } + + c->blocks = calloc (maxdepth, sizeof (struct block)); + if (!c->blocks) { + nbdkit_error ("calloc: %m"); + free (c); + return NULL; + } + c->maxdepth = maxdepth; + c->stats.hits = c->stats.misses = 0; + + return c; +} + +void +free_blkcache (blkcache *c) +{ + size_t i; + + for (i = 0; i < c->maxdepth; ++i) + free (c->blocks[i].data); + free (c->blocks); + free (c); +} + +char * +get_block (blkcache *c, uint64_t offset, uint64_t *start, uint64_t *size) +{ + size_t i; + struct block tmp; + + for (i = 0; i < c->maxdepth; ++i) { + if (c->blocks[i].data != NULL && + c->blocks[i].start <= offset && + offset < c->blocks[i].start + c->blocks[i].size) { + /* This block is now most recently used, so put it at the start. */ + if (i > 0) { + tmp = c->blocks[0]; + c->blocks[0] = c->blocks[i]; + c->blocks[i] = tmp; + } + + c->stats.hits++; + *start = c->blocks[0].start; + *size = c->blocks[0].size; + return c->blocks[0].data; + } + } + + c->stats.misses++; + return NULL; +} + +int +put_block (blkcache *c, uint64_t start, uint64_t size, char *data) +{ + size_t i; + + /* Eject the least recently used block. */ + i = c->maxdepth-1; + if (c->blocks[i].data != NULL) + free (c->blocks[i].data); + + for (; i >= 1; --i) + c->blocks[i] = c->blocks[i-1]; + + /* The new block is most recently used, so it goes at the start. */ + c->blocks[0].start = start; + c->blocks[0].size = size; + c->blocks[0].data = data; + + return 0; +} + +void +blkcache_get_stats (blkcache *c, blkcache_stats *ret) +{ + memcpy (ret, &c->stats, sizeof (c->stats)); +} diff --git a/filters/xz/blkcache.h b/filters/xz/blkcache.h new file mode 100644 index 0000000..6fe4f01 --- /dev/null +++ b/filters/xz/blkcache.h @@ -0,0 +1,53 @@ +/* nbdkit + * Copyright (C) 2013 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_BLKCACHE_H +#define NBDKIT_BLKCACHE_H + +typedef struct blkcache blkcache; + +typedef struct blkcache_stats { + size_t hits; + size_t misses; +} blkcache_stats; + +extern blkcache *new_blkcache (size_t maxdepth); +extern void free_blkcache (blkcache *) __attribute__((__nonnull__ (1))); +extern char *get_block (blkcache *, uint64_t offset, + uint64_t *start, uint64_t *size) + __attribute__((__nonnull__ (1, 3, 4))); +extern int put_block (blkcache *, uint64_t start, uint64_t size, char *data) + __attribute__((__nonnull__ (1, 4))); +extern void blkcache_get_stats (blkcache *, blkcache_stats *ret) + __attribute__((__nonnull__ (1, 2))); + +#endif /* NBDKIT_XZFILE_H */ diff --git a/filters/xz/nbdkit-xz-filter.pod b/filters/xz/nbdkit-xz-filter.pod new file mode 100644 index 0000000..88cd569 --- /dev/null +++ b/filters/xz/nbdkit-xz-filter.pod @@ -0,0 +1,110 @@ +=head1 NAME + +nbdkit-xz-filter - nbdkit xz filter + +=head1 SYNOPSIS + + nbdkit --filter=xz file FILENAME.xz + + nbdkit --filter=xz curl https://example.com/FILENAME.xz + +=head1 DESCRIPTION + +C is a filter for L which uncompresses +the underlying plugin on the fly. The filter only supports read-only +connections. + +=head2 Getting best random access performance from xz + +L files are split into streams and blocks. Most xz files +contain only one stream which contains one or more blocks. You can +find out how many streams and blocks are in an xz file by doing: + + $ xz --list winxp.img.xz + Strms Blocks Compressed Uncompressed Ratio Check Filename + 1 1 2,100.0 MiB 6,144.0 MiB 0.342 CRC64 winxp.img.xz + ↑↑↑ ↑↑↑ + streams blocks + +xz files are seekable on block boundaries only. Seeking is done by +seeking directly to the lower block boundary, then uncompressing data +until the precise byte is reached. As uncompressing xz data is slow, +B + +Use the I<--block-size> option with a small-ish block size. For +example this is the same image compressed with a 16 MB block size: + + $ xz --best --block-size=16777216 winxp.img + ───────────────────── + $ xz --list winxp.img.xz + Strms Blocks Compressed Uncompressed Ratio Check Filename + 1 384 2,120.1 MiB 6,144.0 MiB 0.345 CRC64 winxp.img.xz + ↑↑↑ + blocks + +This file can be accessed randomly. At most 16 MB will have to be +uncompressed to seek to any byte. + +As you would expect, xz cannot compress as efficiently when using a +smaller block size. The space penalty in the above example is +S 1%> of the compressed file size. + +=head1 PARAMETERS + +=over 4 + +=item BSIZE + +The maximum block size that the filter will read. The filter will +refuse to read xz files that contain any block larger than this size. + +See the discussion above about creating xz files with small block +sizes in order to reduce memory usage and increase performance. + +This parameter is optional. If not specified it defaults to 512M. + +=item BN + +Maximum number of blocks stored in the LRU block cache. + +This parameter is optional. If not specified it defaults to 8. + +The filter may allocate up to +S +bytes of memory I. + +=back + +=head1 FILES + +=over 4 + +=item F<$filterdir/nbdkit-xz-filter.so> + +The filter. + +Use C to find the location of C<$filterdir>. + +=back + +=head1 VERSION + +C first appeared in nbdkit 1.10. +It is derived from an earlier plugin that first appeared in nbdkit 1.0. + +=head1 SEE ALSO + +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2013-2020 Red Hat Inc. diff --git a/filters/xz/xz.c b/filters/xz/xz.c new file mode 100644 index 0000000..26cfa95 --- /dev/null +++ b/filters/xz/xz.c @@ -0,0 +1,263 @@ +/* nbdkit + * Copyright (C) 2013-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include + +#include "xzfile.h" +#include "blkcache.h" + +static uint64_t maxblock = 512 * 1024 * 1024; +static uint32_t maxdepth = 8; + +static int +xz_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + if (strcmp (key, "xz-max-block") == 0) { + int64_t r = nbdkit_parse_size (value); + if (r == -1) + return -1; + maxblock = (uint64_t) r; + return 0; + } + else if (strcmp (key, "xz-max-depth") == 0) { + if (nbdkit_parse_uint32_t ("xz-max-depth", value, &maxdepth) == -1) + return -1; + if (maxdepth == 0) { + nbdkit_error ("'xz-max-depth' parameter must be >= 1"); + return -1; + } + return 0; + } + else + return next (nxdata, key, value); +} + +#define xz_config_help \ + "xz-max-block= (optional) Maximum block size allowed (default: 512M)\n"\ + "xz-max-depth= (optional) Maximum blocks in cache (default: 4)\n" + +/* The per-connection handle. */ +struct xz_handle { + xzfile *xz; + + /* Block cache. */ + blkcache *c; +}; + +/* Create the per-connection handle. */ +static void * +xz_open (nbdkit_next_open *next, void *nxdata, + int readonly, const char *exportname, int is_tls) +{ + struct xz_handle *h; + + /* Always pass readonly=1 to the underlying plugin. */ + if (next (nxdata, 1, exportname) == -1) + return NULL; + + h = malloc (sizeof *h); + if (h == NULL) { + nbdkit_error ("malloc: %m"); + return NULL; + } + + h->c = new_blkcache (maxdepth); + if (!h->c) { + free (h); + return NULL; + } + + /* Initialized in xz_prepare. */ + h->xz = NULL; + + return h; +} + +/* Free up the per-connection handle. */ +static void +xz_close (void *handle) +{ + struct xz_handle *h = handle; + blkcache_stats stats; + + blkcache_get_stats (h->c, &stats); + nbdkit_debug ("cache: hits = %zu, misses = %zu", stats.hits, stats.misses); + + xzfile_close (h->xz); + free_blkcache (h->c); + free (h); +} + +static int +xz_prepare (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle, + int readonly) +{ + struct xz_handle *h = handle; + + h->xz = xzfile_open (next_ops, nxdata); + if (!h->xz) + return -1; + + if (maxblock < xzfile_max_uncompressed_block_size (h->xz)) { + nbdkit_error ("xz file largest block is bigger than maxblock\n" + "Either recompress the xz file with smaller blocks " + "(see nbdkit-xz-filter(1))\n" + "or make maxblock parameter bigger.\n" + "maxblock = %" PRIu64 " (bytes)\n" + "largest block in xz file = %" PRIu64 " (bytes)", + maxblock, + xzfile_max_uncompressed_block_size (h->xz)); + return -1; + } + + return 0; +} + +/* Get the file size. */ +static int64_t +xz_get_size (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle) +{ + struct xz_handle *h = handle; + + return xzfile_get_size (h->xz); +} + +/* We need this because otherwise the layer below can_write is called + * and that might return true (eg. if the plugin has a pwrite method + * at all), resulting in writes being passed through to the layer + * below. This is possibly a bug in nbdkit. + */ +static int +xz_can_write (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + return 0; +} + +/* Similar to above. However xz files themselves do support + * sparseness so in future we should generate extents information. XXX + */ +static int +xz_can_extents (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + return 0; +} + +/* Cache */ +static int +xz_can_cache (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + /* We are already operating as a cache regardless of the plugin's + * underlying .can_cache, but it's easiest to just rely on nbdkit's + * behavior of calling .pread for caching. + */ + return NBDKIT_CACHE_EMULATE; +} + +/* Read data from the file. */ +static int +xz_pread (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + struct xz_handle *h = handle; + char *data; + uint64_t start, size; + uint32_t n; + + /* Find the block in the cache. */ + data = get_block (h->c, offset, &start, &size); + if (!data) { + /* Not in the cache. We need to read the block from the xz file. */ + data = xzfile_read_block (h->xz, next_ops, nxdata, flags, err, + offset, &start, &size); + if (data == NULL) + return -1; + put_block (h->c, start, size, data); + } + + /* It's possible if the blocks are really small or oddly aligned or + * if the requests are large that we need to read the following + * block to satisfy the request. + */ + n = count; + if (start + size - offset < n) + n = start + size - offset; + + memcpy (buf, &data[offset-start], n); + buf += n; + count -= n; + offset += n; + if (count > 0) + return xz_pread (next_ops, nxdata, h, buf, count, offset, flags, err); + + return 0; +} + +static int xz_thread_model (void) +{ + return NBDKIT_THREAD_MODEL_SERIALIZE_REQUESTS; +} + +static struct nbdkit_filter filter = { + .name = "xz", + .longname = "nbdkit XZ filter", + .config = xz_config, + .config_help = xz_config_help, + .thread_model = xz_thread_model, + .open = xz_open, + .close = xz_close, + .prepare = xz_prepare, + .get_size = xz_get_size, + .can_write = xz_can_write, + .can_extents = xz_can_extents, + .can_cache = xz_can_cache, + .pread = xz_pread, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/xz/xzfile.c b/filters/xz/xzfile.c new file mode 100644 index 0000000..1ad010e --- /dev/null +++ b/filters/xz/xzfile.c @@ -0,0 +1,502 @@ +/* nbdkit + * Copyright (C) 2013 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* liblzma is a complex interface, so abstract it here. */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include + +#include "cleanup.h" + +#include "xzfile.h" + +#define XZ_HEADER_MAGIC "\xfd" "7zXZ\0" +#define XZ_HEADER_MAGIC_LEN 6 +#define XZ_FOOTER_MAGIC "YZ" +#define XZ_FOOTER_MAGIC_LEN 2 + +struct xzfile { + lzma_index *idx; + size_t nr_streams; + size_t nr_blocks; + uint64_t max_uncompressed_block_size; +}; + +static bool check_header_magic (struct nbdkit_next_ops *next_ops, void *nxdata); +static lzma_index *parse_indexes (struct nbdkit_next_ops *next_ops, void *nxdata, size_t *); +static int iter_indexes (lzma_index *idx, size_t *, uint64_t *); + +xzfile * +xzfile_open (struct nbdkit_next_ops *next_ops, void *nxdata) +{ + xzfile *xz; + uint64_t size; + + xz = malloc (sizeof *xz); + if (xz == NULL) { + nbdkit_error ("malloc: %m"); + return NULL; + } + + /* Check file magic. */ + if (!check_header_magic (next_ops, nxdata)) { + nbdkit_error ("xz: not an xz file"); + goto err1; + } + + /* Read and parse the indexes. */ + xz->idx = parse_indexes (next_ops, nxdata, &xz->nr_streams); + if (xz->idx == NULL) + goto err1; + + /* Iterate over indexes to find the number of and largest block. */ + if (iter_indexes (xz->idx, + &xz->nr_blocks, &xz->max_uncompressed_block_size) == -1) + goto err1; + + size = lzma_index_uncompressed_size (xz->idx); + nbdkit_debug ("xz: size %" PRIu64 " bytes (%.1fM)", + size, size / 1024.0 / 1024.0); + nbdkit_debug ("xz: %zu streams, %zu blocks", xz->nr_streams, xz->nr_blocks); + nbdkit_debug ("xz: maximum uncompressed block size %" PRIu64 " bytes (%.1fM)", + xz->max_uncompressed_block_size, + xz->max_uncompressed_block_size / 1024.0 / 1024.0); + + return xz; + + err1: + free (xz); + return NULL; +} + +static bool +check_header_magic (struct nbdkit_next_ops *next_ops, void *nxdata) +{ + char buf[XZ_HEADER_MAGIC_LEN]; + int err; + + if (next_ops->get_size (nxdata) < XZ_HEADER_MAGIC_LEN) { + nbdkit_error ("xz: file too short"); + return false; + } + if (next_ops->pread (nxdata, buf, XZ_HEADER_MAGIC_LEN, 0, 0, &err) == -1) { + nbdkit_error ("xz: could not read header magic: error %d", err); + return false; + } + if (memcmp (buf, XZ_HEADER_MAGIC, XZ_HEADER_MAGIC_LEN) != 0) + return false; + return true; +} + +/* For explanation of this function, see src/xz/list.c:parse_indexes + * in the xz sources. + */ +static lzma_index * +parse_indexes (struct nbdkit_next_ops *next_ops, void *nxdata, + size_t *nr_streams) +{ + lzma_ret r; + int64_t size, pos, index_size, offs; + int err; + uint8_t footer[LZMA_STREAM_HEADER_SIZE]; + uint8_t header[LZMA_STREAM_HEADER_SIZE]; + lzma_stream_flags footer_flags; + lzma_stream_flags header_flags; + lzma_stream strm = LZMA_STREAM_INIT; + lzma_index *combined_index = NULL; + lzma_index *this_index = NULL; + lzma_vli stream_padding = 0; + + *nr_streams = 0; + + /* Check file size is a multiple of 4 bytes. */ + pos = size = next_ops->get_size (nxdata); + if (pos == -1) { + nbdkit_error ("xz: get_size: %m"); + goto err; + } + if ((pos & 3) != 0) { + nbdkit_error ("xz: not an xz file: size is not a multiple of 4 bytes"); + goto err; + } + + /* Jump backwards through the file identifying each stream. */ + while (pos > 0) { + nbdkit_debug ("looping through streams: pos = %" PRIi64, pos); + + if (pos < LZMA_STREAM_HEADER_SIZE) { + nbdkit_error ("xz: corrupted file at %" PRIi64, pos); + goto err; + } + + if (next_ops->pread (nxdata, footer, LZMA_STREAM_HEADER_SIZE, + pos - LZMA_STREAM_HEADER_SIZE, + 0, &err) == -1) { + nbdkit_error ("xz: read stream footer: error %d", err); + goto err; + } + /* Skip stream padding. */ + if (footer[8] == 0 && footer[9] == 0 && + footer[10] == 0 && footer[11] == 0) { + stream_padding += 4; + pos -= 4; + continue; + } + + pos -= LZMA_STREAM_HEADER_SIZE; + (*nr_streams)++; + + nbdkit_debug ("decode stream footer at pos = %" PRIi64, pos); + + /* Does the stream footer look reasonable? */ + r = lzma_stream_footer_decode (&footer_flags, footer); + if (r != LZMA_OK) { + nbdkit_error ("xz: invalid stream footer (error %d)", r); + goto err; + } + nbdkit_debug ("backward_size = %" PRIu64, + (uint64_t) footer_flags.backward_size); + index_size = footer_flags.backward_size; + if (pos < index_size + LZMA_STREAM_HEADER_SIZE) { + nbdkit_error ("xz: invalid stream footer"); + goto err; + } + + pos -= index_size; + nbdkit_debug ("decode index at pos = %" PRIi64, pos); + + /* Decode the index. */ + r = lzma_index_decoder (&strm, &this_index, UINT64_MAX); + if (r != LZMA_OK) { + nbdkit_error ("xz: invalid stream index (error %d)", r); + goto err; + } + + offs = pos; + do { + uint8_t buf[BUFSIZ]; + + strm.avail_in = index_size; + if (strm.avail_in > BUFSIZ) + strm.avail_in = BUFSIZ; + if (pos + strm.avail_in > size) + strm.avail_in = size - pos; + + if (next_ops->pread (nxdata, buf, strm.avail_in, offs, 0, &err) == -1) { + nbdkit_error ("xz: read index: error %d", err); + goto err; + } + offs += strm.avail_in; + index_size -= strm.avail_in; + + strm.next_in = buf; + r = lzma_code (&strm, LZMA_RUN); + } while (r == LZMA_OK); + + if (r != LZMA_STREAM_END) { + nbdkit_error ("xz: could not parse index (error %d)", r); + goto err; + } + + pos -= lzma_index_total_size (this_index) + LZMA_STREAM_HEADER_SIZE; + + nbdkit_debug ("decode stream header at pos = %" PRIi64, pos); + + /* Read and decode the stream header. */ + if (next_ops->pread (nxdata, header, LZMA_STREAM_HEADER_SIZE, pos, 0, + &err) == -1) { + nbdkit_error ("xz: read stream header: error %d", err); + goto err; + } + + r = lzma_stream_header_decode (&header_flags, header); + if (r != LZMA_OK) { + nbdkit_error ("xz: invalid stream header (error %d)", r); + goto err; + } + + /* Header and footer of the stream should be equal. */ + r = lzma_stream_flags_compare (&header_flags, &footer_flags); + if (r != LZMA_OK) { + nbdkit_error ("xz: header and footer of stream are not equal (error %d)", + r); + goto err; + } + + /* Store the decoded stream flags in this_index. */ + r = lzma_index_stream_flags (this_index, &footer_flags); + if (r != LZMA_OK) { + nbdkit_error ("xz: cannot read stream_flags from index (error %d)", r); + goto err; + } + + /* Store the amount of stream padding so far. Needed to calculate + * compressed offsets correctly in multi-stream files. + */ + r = lzma_index_stream_padding (this_index, stream_padding); + if (r != LZMA_OK) { + nbdkit_error ("xz: cannot set stream_padding in index (error %d)", r); + goto err; + } + + if (combined_index != NULL) { + r = lzma_index_cat (this_index, combined_index, NULL); + if (r != LZMA_OK) { + nbdkit_error ("xz: cannot combine indexes"); + goto err; + } + } + + combined_index = this_index; + this_index = NULL; + } + + lzma_end (&strm); + + return combined_index; + + err: + lzma_end (&strm); + lzma_index_end (this_index, NULL); + lzma_index_end (combined_index, NULL); + return NULL; +} + +/* Iterate over the indexes to find the number of blocks and + * the largest block. + */ +static int +iter_indexes (lzma_index *idx, + size_t *nr_blocks, uint64_t *max_uncompressed_block_size) +{ + lzma_index_iter iter; + + *nr_blocks = 0; + *max_uncompressed_block_size = 0; + + lzma_index_iter_init (&iter, idx); + while (!lzma_index_iter_next (&iter, LZMA_INDEX_ITER_NONEMPTY_BLOCK)) { + if (iter.block.uncompressed_size > *max_uncompressed_block_size) + *max_uncompressed_block_size = iter.block.uncompressed_size; + (*nr_blocks)++; + } + + return 0; +} + +void +xzfile_close (xzfile *xz) +{ + if (xz) { + lzma_index_end (xz->idx, NULL); + free (xz); + } +} + +uint64_t +xzfile_max_uncompressed_block_size (xzfile *xz) +{ + return xz->max_uncompressed_block_size; +} + +uint64_t +xzfile_get_size (xzfile *xz) +{ + return lzma_index_uncompressed_size (xz->idx); +} + +char * +xzfile_read_block (xzfile *xz, + struct nbdkit_next_ops *next_ops, + void *nxdata, uint32_t flags, int *err, + uint64_t offset, + uint64_t *start_rtn, uint64_t *size_rtn) +{ + int64_t offs, size; + lzma_index_iter iter; + uint8_t header[LZMA_BLOCK_HEADER_SIZE_MAX]; + lzma_block block; + lzma_filter filters[LZMA_FILTERS_MAX + 1]; + lzma_ret r; + lzma_stream strm = LZMA_STREAM_INIT; + const size_t bufsize = 1024 * 1024; + CLEANUP_FREE unsigned char *buf = NULL; + char *data = NULL; + size_t i; + + /* Read the total size of the underlying disk, so we don't + * read over the end. + */ + size = next_ops->get_size (nxdata); + if (size == -1) { + nbdkit_error ("xz: get_size: %m"); + return NULL; + } + + /* Locate the block containing the uncompressed offset. */ + lzma_index_iter_init (&iter, xz->idx); + if (lzma_index_iter_locate (&iter, offset)) { + nbdkit_error ("cannot find offset %" PRIu64 " in the xz file", offset); + return NULL; + } + + *start_rtn = iter.block.uncompressed_file_offset; + *size_rtn = iter.block.uncompressed_size; + + nbdkit_debug ("seek: block number %d at file offset %" PRIu64, + (int) iter.block.number_in_file, + (uint64_t) iter.block.compressed_file_offset); + + /* Read the block header. Start by reading a single byte which + * tell us how big the block header is. + */ + offs = iter.block.compressed_file_offset; + if (next_ops->pread (nxdata, header, 1, offs, 0, err) == -1) { + nbdkit_error ("xz: read: could not read block header byte: error %d", *err); + return NULL; + } + offs++; + + if (header[0] == '\0') { + nbdkit_error ("xz: read: unexpected invalid block in file, header[0] = 0"); + return NULL; + } + + block.version = 0; + block.check = iter.stream.flags->check; + block.filters = filters; + block.header_size = lzma_block_header_size_decode (header[0]); + + /* Now read and decode the block header. */ + if (next_ops->pread (nxdata, &header[1], block.header_size-1, offs, + 0, err) == -1) { + nbdkit_error ("xz: read: could not read block of compressed data: " + "error %d", *err); + return NULL; + } + offs += block.header_size - 1; + + r = lzma_block_header_decode (&block, NULL, header); + if (r != LZMA_OK) { + nbdkit_error ("invalid block header (error %d)", r); + return NULL; + } + + /* What this actually does is it checks that the block header + * matches the index. + */ + r = lzma_block_compressed_size (&block, iter.block.unpadded_size); + if (r != LZMA_OK) { + nbdkit_error ("cannot calculate compressed size (error %d)", r); + goto err1; + } + + /* Read the block data. */ + r = lzma_block_decoder (&strm, &block); + if (r != LZMA_OK) { + nbdkit_error ("invalid block (error %d)", r); + goto err1; + } + + data = malloc (*size_rtn); + if (data == NULL) { + nbdkit_error ("malloc (%" PRIu64 " bytes): %m\n" + "NOTE: If this error occurs, you need to recompress your " + "xz files with a smaller block size. " + "Use: 'xz --block-size=16777216 ...'.", + *size_rtn); + goto err2; + } + + buf = malloc (bufsize); + if (buf == NULL) { + nbdkit_error ("malloc: %m"); + goto err2; + } + + strm.next_in = NULL; + strm.avail_in = 0; + strm.next_out = (uint8_t *) data; + strm.avail_out = block.uncompressed_size; + do { + if (strm.avail_in == 0) { + strm.avail_in = bufsize; + if (offs + strm.avail_in > size) + strm.avail_in = size - offs; + if (strm.avail_in > 0) { + strm.next_in = buf; + if (next_ops->pread (nxdata, buf, strm.avail_in, offs, 0, err) == -1) { + nbdkit_error ("xz: read: error %d", *err); + goto err2; + } + offs += strm.avail_in; + } + } + + r = lzma_code (&strm, LZMA_RUN); + } while (r == LZMA_OK); + + if (r != LZMA_OK && r != LZMA_STREAM_END) { + nbdkit_error ("could not parse block data (error %d)", r); + goto err2; + } + + lzma_end (&strm); + + for (i = 0; filters[i].id != LZMA_VLI_UNKNOWN; ++i) + free (filters[i].options); + + return data; + + err2: + lzma_end (&strm); + err1: + for (i = 0; filters[i].id != LZMA_VLI_UNKNOWN; ++i) + free (filters[i].options); + + free (data); + + return NULL; +} diff --git a/filters/xz/xzfile.h b/filters/xz/xzfile.h new file mode 100644 index 0000000..79a9266 --- /dev/null +++ b/filters/xz/xzfile.h @@ -0,0 +1,70 @@ +/* nbdkit + * Copyright (C) 2013-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* liblzma is a complex interface, so abstract it here. */ + +#ifndef NBDKIT_XZFILE_H +#define NBDKIT_XZFILE_H + +#include + +typedef struct xzfile xzfile; + +/* Open (and verify) the named xz file. */ +extern xzfile *xzfile_open (struct nbdkit_next_ops *next_ops, void *nxdata); + +/* Close the file and free up all resources. */ +extern void xzfile_close (xzfile *); + +/* Get (uncompressed) size of the largest block in the file. */ +extern uint64_t xzfile_max_uncompressed_block_size (xzfile *); + +/* Get the total uncompressed size of the file. */ +extern uint64_t xzfile_get_size (xzfile *); + +/* Read the xz file block that contains the byte at 'offset' in the + * uncompressed file. + * + * The uncompressed block of data, which probably begins before the + * requested byte and ends after it, is returned. The caller must + * free it. NULL is returned if there was an error. + * + * The start offset & size of the block relative to the uncompressed + * file are returned in *start and *size. + */ +extern char *xzfile_read_block (xzfile *xz, + struct nbdkit_next_ops *next_ops, + void *nxdata, uint32_t flags, int *err, + uint64_t offset, + uint64_t *start, uint64_t *size); + +#endif /* NBDKIT_XZFILE_H */ diff --git a/fuzzing/Makefile.am b/fuzzing/Makefile.am new file mode 100644 index 0000000..f2a4151 --- /dev/null +++ b/fuzzing/Makefile.am @@ -0,0 +1,43 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = \ + README \ + testcase_dir/newstyle-cflags \ + testcase_dir/newstyle-cflags-exportname \ + testcase_dir/newstyle-cflags-exportname-read4 \ + testcase_dir/newstyle-cflags-go \ + testcase_dir/newstyle-cflags-go-read \ + testcase_dir/newstyle-cflags-go-read4 \ + testcase_dir/newstyle-cflags-go-write \ + $(NULL) diff --git a/fuzzing/Makefile.in b/fuzzing/Makefile.in new file mode 100644 index 0000000..28d60df --- /dev/null +++ b/fuzzing/Makefile.in @@ -0,0 +1,615 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# nbdkit +# Copyright (C) 2013-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. +VPATH = @srcdir@ +am__is_gnu_make = { \ + if test -z '$(MAKELEVEL)'; then \ + false; \ + elif test -n '$(MAKE_HOST)'; then \ + true; \ + elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \ + true; \ + else \ + false; \ + fi; \ +} +am__make_running_with_option = \ + case $${target_option-} in \ + ?) ;; \ + *) echo "am__make_running_with_option: internal error: invalid" \ + "target option '$${target_option-}' specified" >&2; \ + exit 1;; \ + esac; \ + 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stdin) option, and feeding +in a file of "network" input. The stdout from nbdkit (ie. data that +would normally be sent back to the client) is ignored. + +You will need to recompile nbdkit with afl instrumentation: + + ./configure CC=/usr/bin/afl-gcc CXX=/usr/bin/afl-g++ + make clean + make + +The fuzzing/testcase_dir directory contains some initial testcases +that afl can use. + +Run multiple copies of afl-fuzz. Usually you should run 1 master (-M) +and as many slaves (-S) as you can. + +Master: + + mkdir -p fuzzing/sync_dir + afl-fuzz -i fuzzing/testcase_dir -o fuzzing/sync_dir -m 256 -M fuzz01 \ + ./server/nbdkit -s ./plugins/memory/.libs/nbdkit-memory-plugin.so 1M + +Slaves: + + # replace fuzzNN with fuzz02, fuzz03, etc. + afl-fuzz -i fuzzing/testcase_dir -o fuzzing/sync_dir -m 256 -S fuzzNN \ + ./server/nbdkit -s ./plugins/memory/.libs/nbdkit-memory-plugin.so 1M + +Test Coverage +------------- + +To find out if the fuzzing is covering all of the code, I used afl-cov +(https://github.com/mrash/afl-cov). Usage is rather complex, so +consult the README of that project, but in brief: + +(1) Create a second copy of the nbdkit source, and compile it with +profiling: + + ./configure CFLAGS="-O2 -g -pg -fprofile-arcs -ftest-coverage" + make clean + make + +(2) Assuming ../nbdkit-afl is the nbdkit source compiled with afl, and +the current directory is nbdkit compiled with profiling, then run the +command below. You can run this even while afl-fuzz is running. + + afl-cov -d ../nbdkit-afl/fuzzing/sync_dir \ + --code-dir . \ + --coverage-cmd "cat AFL_FILE | ./server/nbdkit -s ./plugins/memory/.libs/nbdkit-memory-plugin.so 1M" + +This will create an HTML test coverage report in +../nbdkit-afl/fuzzing/sync_dir/cov/web/ + +Notes +----- + +We only have testcases for the newstyle fixed protocol so far, but if +people report that they are exposing the oldstyle protocol to the +internet / untrusted clients then we could extend the testing for +that. + +We have only fuzzed the memory plugin, which is convenient because it +stores everything in memory and throws it away when nbdkit exits. +Since plugins can have bugs as well as the core server, it may be +productive to test other plugins and filters. + + +Fuzzing nbdkit using honggfuzz +============================== + +Recompile nbdkit with honggfuzz instrumentation: + + ./configure CC=/path/to/hfuzz-clang CXX=/path/to/hfuzz-clang++ + make clean + make + +Run honggfuzz using test cases: + + honggfuzz -i fuzzing/testcase_dir -z -s -- \ + ./server/nbdkit -s ./plugins/memory/.libs/nbdkit-memory-plugin.so 1M + + +Fuzzing nbdkit using Clang + libFuzzer +====================================== + +Recompile nbdkit with libFuzzer enabled and build the libFuzzer test +binary: + + ./configure \ + CC=clang \ + CFLAGS="-g -O1 -fPIC" \ + --enable-libfuzzer \ + --disable-perl + make clean + make CFLAGS="-g -O1 -fPIC -fsanitize=fuzzer,address" + +(The awkward CFLAGS on the make command line are necessary because +./configure attempts to test that the compiler works, but this test +fails when -fsanitize=fuzzer is used as that option adds an extra +main() definition.) + +",address" enables the Clang Address Sanitizer, and can be omitted for +faster fuzzing. + +This builds a specialized version of nbdkit which is the fuzzer test +program (testing only nbdkit-memory-plugin unless you modify the +source). You can run it like this on the input corpus: + + ./server/nbdkit fuzzing/testcase_dir + +New test inputs are written to fuzzing/testcase_dir and will be used +on subsequent runs. If this is undesirable then delete +fuzzing/testcase_dir/[0-f]* before the run. + +There are various extra command line options supported by libFuzzer. +For more details see: + + https://llvm.org/docs/LibFuzzer.html diff --git a/fuzzing/testcase_dir/newstyle-cflags b/fuzzing/testcase_dir/newstyle-cflags new file mode 100644 index 0000000000000000000000000000000000000000..fde1ac19d2b083530bcab4cb4fd2dcaa285234ab GIT binary patch literal 4 LcmZQzU|U0PZ literal 0 HcmV?d00001 diff --git a/html/pod.css b/html/pod.css new file mode 100644 index 0000000..1c07ec8 --- /dev/null +++ b/html/pod.css @@ -0,0 +1,155 @@ +/* CSS to make pod2html files look a little bit better. */ + +body { + margin-left: 4em; +} + +body p, body ul, ol, body dl { + margin-left: 2em; + width: 31em; +} + +pre { + width: 31em; +} + +li { + padding-bottom: 0.5em; +} + +/* Code sections. */ + +pre { + background-color: #f8f8f8; + color: rgb(204,0,0); + font-weight: 550; + border-left: 6px solid rgb(204,64,64); + padding: 6px; + margin-left: 1em; + font-size: 120%; +} + +/* Bold, italic in man pages. */ +b, strong { + color: rgb(204,0,0); +} + +i, em { + color: rgb(204,0,0); +} + +/* Name heading. */ + +body > h1:first-of-type { + display: none; +} + +body > h1:first-of-type + p { + font-size: 125%; + font-weight: bold; + color: rgb(204,0,0); + margin-left: -32px; +} + +/* Warning heading in man pages. */ +a[name="warning"] { + -moz-border-radius-topleft: 5px; + -moz-border-radius-topright: 5px; + border-radius-topleft: 5px; + border-radius-topright: 5px; + + color: white; + background-color: rgb(204,0,0); +} +a[name="warning"]:before { + content: "\00a0\00a0\00a0"; +} +a[name="warning"]:after { + content: "\00a0\00a0\00a0"; +} + +/* Put the index on the right hand side in a floating box. */ +ul[id="index"] { + float: right; + width: 18em; + border-left: 3em solid white; + background-color: #fcfcfc; + margin-top: 32px; + padding-top: 0px; + margin-left: 1em; + padding-left: 1em; + padding-right: 1em; + font-size: 90%; +} + +ul[id="index"] a[href] { + text-decoration: none; +} + +ul[id="index"] a[href]:hover { + text-decoration: underline; +} + +ul[id="index"] a[href]:before { + content: '#\00a0'; + color: rgb(204,0,0); + font-size: x-small; +} + +ul[id="index"] { + width: 17em; + list-style: none; + margin-left: 0px; + margin-right: 0px; + padding-left: 0px; + padding-right: 0px; +} + +ul[id="index"] > li { + margin-bottom: 0.5em; +} + +ul[id="index"] > li ul { + width: 16em; + list-style: none; + margin-left: 0px; + margin-right: 0px; + padding-left: 0px; + padding-right: 0px; + margin-bottom: 0.5em; +} + +ul[id="index"] > li ul li { + display: inline; + margin-right: 1em; +} + +/* +ul[id="index"] > li ul li:after { + color: #ccc; + content: '\2014'; +} +*/ + +/* Get rid of those horrible
's :-( */ +hr { display: none; } + +/* Demote

's and set rest of headers relative. */ +h1 { + font-size: 100%; + color: black; + border-bottom: solid 1px rgb(204,0,0); +} + +h2 { + font-size: 95%; + border-bottom: none; +} + +h3 { + font-size: 90%; +} + +h4 { + font-size: 85%; +} diff --git a/include/Makefile.am b/include/Makefile.am new file mode 100644 index 0000000..cf46abc --- /dev/null +++ b/include/Makefile.am @@ -0,0 +1,39 @@ +# nbdkit +# Copyright (C) 2013 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +include_HEADERS = \ + nbdkit-common.h \ + nbdkit-plugin.h \ + nbdkit-filter.h \ + nbdkit-version.h \ + $(NULL) diff --git a/include/Makefile.in b/include/Makefile.in new file mode 100644 index 0000000..861f470 --- /dev/null +++ b/include/Makefile.in @@ -0,0 +1,734 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2013 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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+install-exec-am: + +install-html: install-html-am + +install-html-am: + +install-info: install-info-am + +install-info-am: + +install-man: + +install-pdf: install-pdf-am + +install-pdf-am: + +install-ps: install-ps-am + +install-ps-am: + +installcheck-am: + +maintainer-clean: maintainer-clean-am + -rm -f Makefile +maintainer-clean-am: distclean-am maintainer-clean-generic + +mostlyclean: mostlyclean-am + +mostlyclean-am: mostlyclean-generic mostlyclean-libtool + +pdf: pdf-am + +pdf-am: + +ps: ps-am + +ps-am: + +uninstall-am: uninstall-includeHEADERS + +.MAKE: install-am install-strip + +.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \ + clean-libtool cscopelist-am ctags ctags-am distclean \ + distclean-generic distclean-libtool distclean-tags distdir dvi \ + dvi-am html html-am info info-am install install-am \ + install-data install-data-am install-dvi install-dvi-am \ + install-exec install-exec-am install-html install-html-am \ + install-includeHEADERS install-info install-info-am \ + install-man install-pdf install-pdf-am install-ps \ + install-ps-am install-strip installcheck installcheck-am \ + installdirs maintainer-clean maintainer-clean-generic \ + mostlyclean mostlyclean-generic mostlyclean-libtool pdf pdf-am \ + ps ps-am tags tags-am uninstall uninstall-am \ + uninstall-includeHEADERS + +.PRECIOUS: Makefile + + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/include/nbdkit-common.h b/include/nbdkit-common.h new file mode 100644 index 0000000..6f58038 --- /dev/null +++ b/include/nbdkit-common.h @@ -0,0 +1,144 @@ +/* nbdkit + * Copyright (C) 2013-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_COMMON_H +#define NBDKIT_COMMON_H + +#if !defined (NBDKIT_PLUGIN_H) && !defined (NBDKIT_FILTER_H) +#error this header file should not be directly included +#endif + +#include +#include +#include +#include + +#include + +#ifdef __cplusplus +extern "C" { +#endif + +#if defined(__GNUC__) || defined(__clang__) +#define ATTRIBUTE_FORMAT_PRINTF(fmtpos, argpos) \ + __attribute__((__format__ (__printf__, fmtpos, argpos))) +#else +#define ATTRIBUTE_FORMAT_PRINTF(fmtpos, argpos) +#endif + +#define NBDKIT_THREAD_MODEL_SERIALIZE_CONNECTIONS 0 +#define NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS 1 +#define NBDKIT_THREAD_MODEL_SERIALIZE_REQUESTS 2 +#define NBDKIT_THREAD_MODEL_PARALLEL 3 + +#define NBDKIT_FLAG_MAY_TRIM (1<<0) /* Maps to !NBD_CMD_FLAG_NO_HOLE */ +#define NBDKIT_FLAG_FUA (1<<1) /* Maps to NBD_CMD_FLAG_FUA */ +#define NBDKIT_FLAG_REQ_ONE (1<<2) /* Maps to NBD_CMD_FLAG_REQ_ONE */ +#define NBDKIT_FLAG_FAST_ZERO (1<<3) /* Maps to NBD_CMD_FLAG_FAST_ZERO */ + +#define NBDKIT_FUA_NONE 0 +#define NBDKIT_FUA_EMULATE 1 +#define NBDKIT_FUA_NATIVE 2 + +#define NBDKIT_CACHE_NONE 0 +#define NBDKIT_CACHE_EMULATE 1 +#define NBDKIT_CACHE_NATIVE 2 + +#define NBDKIT_EXTENT_HOLE (1<<0) /* Same as NBD_STATE_HOLE */ +#define NBDKIT_EXTENT_ZERO (1<<1) /* Same as NBD_STATE_ZERO */ + +#define NBDKIT_EXTERN_DECL(ret, fn, args) extern ret fn args + +NBDKIT_EXTERN_DECL (void, nbdkit_error, + (const char *msg, ...) ATTRIBUTE_FORMAT_PRINTF (1, 2)); +NBDKIT_EXTERN_DECL (void, nbdkit_verror, + (const char *msg, va_list args) + ATTRIBUTE_FORMAT_PRINTF (1, 0)); +NBDKIT_EXTERN_DECL (void, nbdkit_debug, + (const char *msg, ...) ATTRIBUTE_FORMAT_PRINTF (1, 2)); +NBDKIT_EXTERN_DECL (void, nbdkit_vdebug, + (const char *msg, va_list args) + ATTRIBUTE_FORMAT_PRINTF (1, 0)); + +NBDKIT_EXTERN_DECL (char *, nbdkit_absolute_path, (const char *path)); +NBDKIT_EXTERN_DECL (int64_t, nbdkit_parse_size, (const char *str)); +NBDKIT_EXTERN_DECL (int, nbdkit_parse_bool, (const char *str)); +NBDKIT_EXTERN_DECL (int, nbdkit_parse_int, + (const char *what, const char *str, int *r)); +NBDKIT_EXTERN_DECL (int, nbdkit_parse_unsigned, + (const char *what, const char *str, unsigned *r)); +NBDKIT_EXTERN_DECL (int, nbdkit_parse_int8_t, + (const char *what, const char *str, int8_t *r)); +NBDKIT_EXTERN_DECL (int, nbdkit_parse_uint8_t, + (const char *what, const char *str, uint8_t *r)); +NBDKIT_EXTERN_DECL (int, nbdkit_parse_int16_t, + (const char *what, const char *str, int16_t *r)); +NBDKIT_EXTERN_DECL (int, nbdkit_parse_uint16_t, + (const char *what, const char *str, uint16_t *r)); +NBDKIT_EXTERN_DECL (int, nbdkit_parse_int32_t, + (const char *what, const char *str, int32_t *r)); +NBDKIT_EXTERN_DECL (int, nbdkit_parse_uint32_t, + (const char *what, const char *str, uint32_t *r)); +NBDKIT_EXTERN_DECL (int, nbdkit_parse_int64_t, + (const char *what, const char *str, int64_t *r)); +NBDKIT_EXTERN_DECL (int, nbdkit_parse_uint64_t, + (const char *what, const char *str, uint64_t *r)); +NBDKIT_EXTERN_DECL (int, nbdkit_stdio_safe, (void)); +NBDKIT_EXTERN_DECL (int, nbdkit_read_password, + (const char *value, char **password)); +NBDKIT_EXTERN_DECL (char *, nbdkit_realpath, (const char *path)); +NBDKIT_EXTERN_DECL (int, nbdkit_nanosleep, (unsigned sec, unsigned nsec)); +NBDKIT_EXTERN_DECL (int, nbdkit_peer_name, + (struct sockaddr *addr, socklen_t *addrlen)); +NBDKIT_EXTERN_DECL (void, nbdkit_shutdown, (void)); + +struct nbdkit_extents; +NBDKIT_EXTERN_DECL (int, nbdkit_add_extent, + (struct nbdkit_extents *, + uint64_t offset, uint64_t length, uint32_t type)); + +/* A static non-NULL pointer which can be used when you don't need a + * per-connection handle. + */ +#define NBDKIT_HANDLE_NOT_NEEDED (&errno) + +#ifdef __cplusplus +} +#endif + +#ifdef __cplusplus +#define NBDKIT_CXX_LANG_C extern "C" +#else +#define NBDKIT_CXX_LANG_C /* nothing */ +#endif + +#endif /* NBDKIT_COMMON_H */ diff --git a/include/nbdkit-filter.h b/include/nbdkit-filter.h new file mode 100644 index 0000000..f059606 --- /dev/null +++ b/include/nbdkit-filter.h @@ -0,0 +1,258 @@ +/* nbdkit + * Copyright (C) 2013-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* See nbdkit-filter(3) for documentation and how to write a filter. */ + +#ifndef NBDKIT_FILTER_H +#define NBDKIT_FILTER_H + +#include + +#include + +#ifdef __cplusplus +extern "C" { +#endif + +#define NBDKIT_FILTER_API_VERSION 6 /* Corresponding to v1.16+ */ + +#define NBDKIT_ZERO_NONE 0 +#define NBDKIT_ZERO_EMULATE 1 +#define NBDKIT_ZERO_NATIVE 2 + +#ifdef NBDKIT_INTERNAL +/* Opaque type encapsulating all information needed for calling into + * the next filter or plugin. + */ +typedef struct backend nbdkit_backend; +#else +typedef void nbdkit_backend; +#endif + +/* Next ops. */ +typedef int nbdkit_next_config (nbdkit_backend *nxdata, + const char *key, const char *value); +typedef int nbdkit_next_config_complete (nbdkit_backend *nxdata); +typedef int nbdkit_next_get_ready (nbdkit_backend *nxdata); +typedef int nbdkit_next_after_fork (nbdkit_backend *nxdata); +typedef int nbdkit_next_preconnect (nbdkit_backend *nxdata, int readonly); +struct nbdkit_exports; +typedef int nbdkit_next_list_exports (nbdkit_backend *nxdata, int readonly, + int default_only, + struct nbdkit_exports *exports); +typedef int nbdkit_next_open (nbdkit_backend *nxdata, + int readonly, const char *exportname); + +struct nbdkit_next_ops { + /* Performs close + open on the underlying chain. + * Used by the retry filter. + */ + int (*reopen) (nbdkit_backend *nxdata, int readonly, const char *exportname); + + /* The rest of the next ops are the same as normal plugin operations. */ + int64_t (*get_size) (nbdkit_backend *nxdata); + + int (*can_write) (nbdkit_backend *nxdata); + int (*can_flush) (nbdkit_backend *nxdata); + int (*is_rotational) (nbdkit_backend *nxdata); + int (*can_trim) (nbdkit_backend *nxdata); + int (*can_zero) (nbdkit_backend *nxdata); + int (*can_fast_zero) (nbdkit_backend *nxdata); + int (*can_extents) (nbdkit_backend *nxdata); + int (*can_fua) (nbdkit_backend *nxdata); + int (*can_multi_conn) (nbdkit_backend *nxdata); + int (*can_cache) (nbdkit_backend *nxdata); + + int (*pread) (nbdkit_backend *nxdata, + void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err); + int (*pwrite) (nbdkit_backend *nxdata, + const void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err); + int (*flush) (nbdkit_backend *nxdata, uint32_t flags, int *err); + int (*trim) (nbdkit_backend *nxdata, uint32_t count, uint64_t offset, + uint32_t flags, int *err); + int (*zero) (nbdkit_backend *nxdata, uint32_t count, uint64_t offset, + uint32_t flags, int *err); + int (*extents) (nbdkit_backend *nxdata, uint32_t count, uint64_t offset, + uint32_t flags, struct nbdkit_extents *extents, int *err); + int (*cache) (nbdkit_backend *nxdata, uint32_t count, uint64_t offset, + uint32_t flags, int *err); +}; + +/* Extent functions. */ +struct nbdkit_extent { + uint64_t offset; + uint64_t length; + uint32_t type; +}; + +NBDKIT_EXTERN_DECL (struct nbdkit_extents *,nbdkit_extents_new, + (uint64_t start, uint64_t end)); +NBDKIT_EXTERN_DECL (void, nbdkit_extents_free, (struct nbdkit_extents *)); +NBDKIT_EXTERN_DECL (size_t, nbdkit_extents_count, + (const struct nbdkit_extents *)); +NBDKIT_EXTERN_DECL (struct nbdkit_extent, nbdkit_get_extent, + (const struct nbdkit_extents *, size_t)); +NBDKIT_EXTERN_DECL (int, nbdkit_extents_aligned, + (struct nbdkit_next_ops *next_ops, + nbdkit_backend *nxdata, + uint32_t count, uint64_t offset, + uint32_t flags, uint32_t align, + struct nbdkit_extents *extents, int *err)); + +/* Export functions. */ +NBDKIT_EXTERN_DECL (int, nbdkit_add_export, + (struct nbdkit_exports *, + const char *name, const char *description)); + +struct nbdkit_export { + char *name; + char *description; +}; + +NBDKIT_EXTERN_DECL (struct nbdkit_exports *, nbdkit_exports_new, + (int default_only)); +NBDKIT_EXTERN_DECL (void, nbdkit_exports_free, (struct nbdkit_exports *)); +NBDKIT_EXTERN_DECL (size_t, nbdkit_exports_count, + (const struct nbdkit_exports *)); +NBDKIT_EXTERN_DECL (const struct nbdkit_export, nbdkit_get_export, + (const struct nbdkit_exports *, size_t)); + +/* Filter struct. */ +struct nbdkit_filter { + /* Do not set these fields directly; use NBDKIT_REGISTER_FILTER. + * They exist so that we can diagnose filters compiled against one + * version of the header with a runtime compiled against a different + * version. As of API version 6, _version is also part of the + * guaranteed ABI, so we no longer have to remember to bump API + * versions regardless of other API/ABI changes later in the struct. + */ + int _api_version; + const char *_version; + + /* Because there is no ABI guarantee, new fields may be added where + * logically appropriate. + */ + const char *name; + const char *longname; + const char *description; + + void (*load) (void); + void (*unload) (void); + + int (*config) (nbdkit_next_config *next, nbdkit_backend *nxdata, + const char *key, const char *value); + int (*config_complete) (nbdkit_next_config_complete *next, + nbdkit_backend *nxdata); + const char *config_help; + int (*thread_model) (void); + int (*get_ready) (nbdkit_next_get_ready *next, nbdkit_backend *nxdata, + int thread_model); + int (*after_fork) (nbdkit_next_after_fork *next, nbdkit_backend *nxdata); + int (*preconnect) (nbdkit_next_preconnect *next, nbdkit_backend *nxdata, + int readonly); + int (*list_exports) (nbdkit_next_list_exports *next, nbdkit_backend *nxdata, + int readonly, int default_only, + struct nbdkit_exports *exports); + + void * (*open) (nbdkit_next_open *next, nbdkit_backend *nxdata, + int readonly, const char *exportname, int is_tls); + void (*close) (void *handle); + + int (*prepare) (struct nbdkit_next_ops *next_ops, nbdkit_backend *nxdata, + void *handle, int readonly); + int (*finalize) (struct nbdkit_next_ops *next_ops, nbdkit_backend *nxdata, + void *handle); + + int64_t (*get_size) (struct nbdkit_next_ops *next_ops, nbdkit_backend *nxdata, + void *handle); + + int (*can_write) (struct nbdkit_next_ops *next_ops, nbdkit_backend *nxdata, + void *handle); + int (*can_flush) (struct nbdkit_next_ops *next_ops, nbdkit_backend *nxdata, + void *handle); + int (*is_rotational) (struct nbdkit_next_ops *next_ops, + nbdkit_backend *nxdata, void *handle); + int (*can_trim) (struct nbdkit_next_ops *next_ops, nbdkit_backend *nxdata, + void *handle); + int (*can_zero) (struct nbdkit_next_ops *next_ops, nbdkit_backend *nxdata, + void *handle); + int (*can_fast_zero) (struct nbdkit_next_ops *next_ops, + nbdkit_backend *nxdata, void *handle); + int (*can_extents) (struct nbdkit_next_ops *next_ops, nbdkit_backend *nxdata, + void *handle); + int (*can_fua) (struct nbdkit_next_ops *next_ops, nbdkit_backend *nxdata, + void *handle); + int (*can_multi_conn) (struct nbdkit_next_ops *next_ops, + nbdkit_backend *nxdata, void *handle); + int (*can_cache) (struct nbdkit_next_ops *next_ops, nbdkit_backend *nxdata, + void *handle); + + int (*pread) (struct nbdkit_next_ops *next_ops, nbdkit_backend *nxdata, + void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err); + int (*pwrite) (struct nbdkit_next_ops *next_ops, nbdkit_backend *nxdata, + void *handle, + const void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err); + int (*flush) (struct nbdkit_next_ops *next_ops, nbdkit_backend *nxdata, + void *handle, uint32_t flags, int *err); + int (*trim) (struct nbdkit_next_ops *next_ops, nbdkit_backend *nxdata, + void *handle, uint32_t count, uint64_t offset, uint32_t flags, + int *err); + int (*zero) (struct nbdkit_next_ops *next_ops, nbdkit_backend *nxdata, + void *handle, uint32_t count, uint64_t offset, uint32_t flags, + int *err); + int (*extents) (struct nbdkit_next_ops *next_ops, nbdkit_backend *nxdata, + void *handle, uint32_t count, uint64_t offset, uint32_t flags, + struct nbdkit_extents *extents, int *err); + int (*cache) (struct nbdkit_next_ops *next_ops, nbdkit_backend *nxdata, + void *handle, uint32_t count, uint64_t offset, uint32_t flags, + int *err); +}; + +#define NBDKIT_REGISTER_FILTER(filter) \ + NBDKIT_CXX_LANG_C \ + struct nbdkit_filter * \ + filter_init (void) \ + { \ + (filter)._api_version = NBDKIT_FILTER_API_VERSION; \ + (filter)._version = NBDKIT_VERSION_STRING; \ + return &(filter); \ + } + +#ifdef __cplusplus +} +#endif + +#endif /* NBDKIT_FILTER_H */ diff --git a/include/nbdkit-plugin.h b/include/nbdkit-plugin.h new file mode 100644 index 0000000..be383b8 --- /dev/null +++ b/include/nbdkit-plugin.h @@ -0,0 +1,163 @@ +/* nbdkit + * Copyright (C) 2013-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* See nbdkit-plugin(3) for documentation and how to write a plugin. */ + +#ifndef NBDKIT_PLUGIN_H +#define NBDKIT_PLUGIN_H + +#include + +#ifdef __cplusplus +extern "C" { +#endif + +/* By default, a plugin gets API version 1; but you may request + * version 2 prior to including this header */ +#ifndef NBDKIT_API_VERSION +#define NBDKIT_API_VERSION 1 +#elif (NBDKIT_API_VERSION - 0) < 1 || NBDKIT_API_VERSION > 2 +#error Unsupported API version +#endif + +struct nbdkit_plugin { + /* Do not set these fields directly; use NBDKIT_REGISTER_PLUGIN. + * They exist so that we can support plugins compiled against + * one version of the header with a runtime compiled against a + * different version with more (or fewer) fields. + */ + uint64_t _struct_size; + int _api_version; + int _thread_model; + + /* Plugins are responsible for these fields; see the documentation + * for semantics, and which fields are optional. New fields will + * only be added at the end of the struct. + */ + const char *name; + const char *longname; + const char *version; + const char *description; + + void (*load) (void); + void (*unload) (void); + + int (*config) (const char *key, const char *value); + int (*config_complete) (void); + const char *config_help; + + void * (*open) (int readonly); + void (*close) (void *handle); + + int64_t (*get_size) (void *handle); + + int (*can_write) (void *handle); + int (*can_flush) (void *handle); + int (*is_rotational) (void *handle); + int (*can_trim) (void *handle); + +#if NBDKIT_API_VERSION == 1 + int (*pread) (void *handle, void *buf, uint32_t count, uint64_t offset); + int (*pwrite) (void *handle, const void *buf, uint32_t count, uint64_t offset); + int (*flush) (void *handle); + int (*trim) (void *handle, uint32_t count, uint64_t offset); + int (*zero) (void *handle, uint32_t count, uint64_t offset, int may_trim); +#else + int (*_pread_v1) (void *, void *, uint32_t, uint64_t); + int (*_pwrite_v1) (void *, const void *, uint32_t, uint64_t); + int (*_flush_v1) (void *); + int (*_trim_v1) (void *, uint32_t, uint64_t); + int (*_zero_v1) (void *, uint32_t, uint64_t, int); +#endif + + int errno_is_preserved; + + void (*dump_plugin) (void); + + int (*can_zero) (void *handle); + int (*can_fua) (void *handle); +#if NBDKIT_API_VERSION == 1 + int (*_unused1) (void *, void *, uint32_t, uint64_t, uint32_t); + int (*_unused2) (void *, const void *, uint32_t, uint64_t, uint32_t); + int (*_unused3) (void *, uint32_t); + int (*_unused4) (void *, uint32_t, uint64_t, uint32_t); + int (*_unused5) (void *, uint32_t, uint64_t, uint32_t); +#else + int (*pread) (void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags); + int (*pwrite) (void *handle, const void *buf, uint32_t count, + uint64_t offset, uint32_t flags); + int (*flush) (void *handle, uint32_t flags); + int (*trim) (void *handle, uint32_t count, uint64_t offset, uint32_t flags); + int (*zero) (void *handle, uint32_t count, uint64_t offset, uint32_t flags); +#endif + + const char *magic_config_key; + + int (*can_multi_conn) (void *handle); + + int (*can_extents) (void *handle); + int (*extents) (void *handle, uint32_t count, uint64_t offset, uint32_t flags, + struct nbdkit_extents *extents); + int (*can_cache) (void *handle); + int (*cache) (void *handle, uint32_t count, uint64_t offset, uint32_t flags); + + int (*thread_model) (void); + + int (*can_fast_zero) (void *handle); + + int (*preconnect) (int readonly); + + int (*get_ready) (void); + int (*after_fork) (void); +}; + +NBDKIT_EXTERN_DECL (void, nbdkit_set_error, (int err)); +NBDKIT_EXTERN_DECL (const char *, nbdkit_export_name, (void)); +NBDKIT_EXTERN_DECL (int, nbdkit_is_tls, (void)); + +#define NBDKIT_REGISTER_PLUGIN(plugin) \ + NBDKIT_CXX_LANG_C \ + struct nbdkit_plugin * \ + plugin_init (void) \ + { \ + (plugin)._struct_size = sizeof (plugin); \ + (plugin)._api_version = NBDKIT_API_VERSION; \ + (plugin)._thread_model = THREAD_MODEL; \ + return &(plugin); \ + } + +#ifdef __cplusplus +} +#endif + +#endif /* NBDKIT_PLUGIN_H */ diff --git a/include/nbdkit-version.h b/include/nbdkit-version.h new file mode 100644 index 0000000..5ea24e8 --- /dev/null +++ b/include/nbdkit-version.h @@ -0,0 +1,45 @@ +/* nbdkit + * Copyright (C) 2013-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_VERSION_H +#define NBDKIT_VERSION_H + +#if !defined (NBDKIT_PLUGIN_H) && !defined (NBDKIT_FILTER_H) +#error this header file should not be directly included +#endif + +#define NBDKIT_VERSION_MAJOR 1 +#define NBDKIT_VERSION_MINOR 22 +#define NBDKIT_VERSION_MICRO 4 +#define NBDKIT_VERSION_STRING "1.22.4" + +#endif /* NBDKIT_VERSION_H */ diff --git a/include/nbdkit-version.h.in b/include/nbdkit-version.h.in new file mode 100644 index 0000000..35fc537 --- /dev/null +++ b/include/nbdkit-version.h.in @@ -0,0 +1,45 @@ +/* nbdkit + * Copyright (C) 2013-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_VERSION_H +#define NBDKIT_VERSION_H + +#if !defined (NBDKIT_PLUGIN_H) && !defined (NBDKIT_FILTER_H) +#error this header file should not be directly included +#endif + +#define NBDKIT_VERSION_MAJOR @NBDKIT_VERSION_MAJOR@ +#define NBDKIT_VERSION_MINOR @NBDKIT_VERSION_MINOR@ +#define NBDKIT_VERSION_MICRO @NBDKIT_VERSION_MICRO@ +#define NBDKIT_VERSION_STRING "@NBDKIT_VERSION_MAJOR@.@NBDKIT_VERSION_MINOR@.@NBDKIT_VERSION_MICRO@" + +#endif /* NBDKIT_VERSION_H */ diff --git a/install-sh b/install-sh new file mode 100755 index 0000000..8175c64 --- /dev/null +++ b/install-sh @@ -0,0 +1,518 @@ +#!/bin/sh +# install - install a program, script, or datafile + +scriptversion=2018-03-11.20; # UTC + +# This originates from X11R5 (mit/util/scripts/install.sh), which was +# later released in X11R6 (xc/config/util/install.sh) with the +# following copyright and license. +# +# Copyright (C) 1994 X Consortium +# +# Permission is hereby granted, free of charge, to any person obtaining a copy +# of this software and associated documentation files (the "Software"), to +# deal in the Software without restriction, including without limitation the +# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or +# sell copies of the Software, and to permit persons to whom the Software is +# furnished to do so, subject to the following conditions: +# +# The above copyright notice and this permission notice shall be included in +# all copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN +# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC- +# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +# +# Except as contained in this notice, the name of the X Consortium shall not +# be used in advertising or otherwise to promote the sale, use or other deal- +# ings in this Software without prior written authorization from the X Consor- +# tium. +# +# +# FSF changes to this file are in the public domain. +# +# Calling this script install-sh is preferred over install.sh, to prevent +# 'make' implicit rules from creating a file called install from it +# when there is no Makefile. +# +# This script is compatible with the BSD install script, but was written +# from scratch. + +tab=' ' +nl=' +' +IFS=" $tab$nl" + +# Set DOITPROG to "echo" to test this script. + +doit=${DOITPROG-} +doit_exec=${doit:-exec} + +# Put in absolute file names if you don't have them in your path; +# or use environment vars. + +chgrpprog=${CHGRPPROG-chgrp} +chmodprog=${CHMODPROG-chmod} +chownprog=${CHOWNPROG-chown} +cmpprog=${CMPPROG-cmp} +cpprog=${CPPROG-cp} +mkdirprog=${MKDIRPROG-mkdir} +mvprog=${MVPROG-mv} +rmprog=${RMPROG-rm} +stripprog=${STRIPPROG-strip} + +posix_mkdir= + +# Desired mode of installed file. +mode=0755 + +chgrpcmd= +chmodcmd=$chmodprog +chowncmd= +mvcmd=$mvprog +rmcmd="$rmprog -f" +stripcmd= + +src= +dst= +dir_arg= +dst_arg= + +copy_on_change=false +is_target_a_directory=possibly + +usage="\ +Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE + or: $0 [OPTION]... SRCFILES... DIRECTORY + or: $0 [OPTION]... -t DIRECTORY SRCFILES... + or: $0 [OPTION]... -d DIRECTORIES... + +In the 1st form, copy SRCFILE to DSTFILE. +In the 2nd and 3rd, copy all SRCFILES to DIRECTORY. +In the 4th, create DIRECTORIES. + +Options: + --help display this help and exit. + --version display version info and exit. + + -c (ignored) + -C install only if different (preserve the last data modification time) + -d create directories instead of installing files. + -g GROUP $chgrpprog installed files to GROUP. + -m MODE $chmodprog installed files to MODE. + -o USER $chownprog installed files to USER. + -s $stripprog installed files. + -t DIRECTORY install into DIRECTORY. + -T report an error if DSTFILE is a directory. + +Environment variables override the default commands: + CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG + RMPROG STRIPPROG +" + +while test $# -ne 0; do + case $1 in + -c) ;; + + -C) copy_on_change=true;; + + -d) dir_arg=true;; + + -g) chgrpcmd="$chgrpprog $2" + shift;; + + --help) echo "$usage"; exit $?;; + + -m) mode=$2 + case $mode in + *' '* | *"$tab"* | *"$nl"* | *'*'* | *'?'* | *'['*) + echo "$0: invalid mode: $mode" >&2 + exit 1;; + esac + shift;; + + -o) chowncmd="$chownprog $2" + shift;; + + -s) stripcmd=$stripprog;; + + -t) + is_target_a_directory=always + dst_arg=$2 + # Protect names problematic for 'test' and other utilities. + case $dst_arg in + -* | [=\(\)!]) dst_arg=./$dst_arg;; + esac + shift;; + + -T) is_target_a_directory=never;; + + --version) echo "$0 $scriptversion"; exit $?;; + + --) shift + break;; + + -*) echo "$0: invalid option: $1" >&2 + exit 1;; + + *) break;; + esac + shift +done + +# We allow the use of options -d and -T together, by making -d +# take the precedence; this is for compatibility with GNU install. + +if test -n "$dir_arg"; then + if test -n "$dst_arg"; then + echo "$0: target directory not allowed when installing a directory." >&2 + exit 1 + fi +fi + +if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then + # When -d is used, all remaining arguments are directories to create. + # When -t is used, the destination is already specified. + # Otherwise, the last argument is the destination. Remove it from $@. + for arg + do + if test -n "$dst_arg"; then + # $@ is not empty: it contains at least $arg. + set fnord "$@" "$dst_arg" + shift # fnord + fi + shift # arg + dst_arg=$arg + # Protect names problematic for 'test' and other utilities. + case $dst_arg in + -* | [=\(\)!]) dst_arg=./$dst_arg;; + esac + done +fi + +if test $# -eq 0; then + if test -z "$dir_arg"; then + echo "$0: no input file specified." >&2 + exit 1 + fi + # It's OK to call 'install-sh -d' without argument. + # This can happen when creating conditional directories. + exit 0 +fi + +if test -z "$dir_arg"; then + if test $# -gt 1 || test "$is_target_a_directory" = always; then + if test ! -d "$dst_arg"; then + echo "$0: $dst_arg: Is not a directory." >&2 + exit 1 + fi + fi +fi + +if test -z "$dir_arg"; then + do_exit='(exit $ret); exit $ret' + trap "ret=129; $do_exit" 1 + trap "ret=130; $do_exit" 2 + trap "ret=141; $do_exit" 13 + trap "ret=143; $do_exit" 15 + + # Set umask so as not to create temps with too-generous modes. + # However, 'strip' requires both read and write access to temps. + case $mode in + # Optimize common cases. + *644) cp_umask=133;; + *755) cp_umask=22;; + + *[0-7]) + if test -z "$stripcmd"; then + u_plus_rw= + else + u_plus_rw='% 200' + fi + cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;; + *) + if test -z "$stripcmd"; then + u_plus_rw= + else + u_plus_rw=,u+rw + fi + cp_umask=$mode$u_plus_rw;; + esac +fi + +for src +do + # Protect names problematic for 'test' and other utilities. + case $src in + -* | [=\(\)!]) src=./$src;; + esac + + if test -n "$dir_arg"; then + dst=$src + dstdir=$dst + test -d "$dstdir" + dstdir_status=$? + else + + # Waiting for this to be detected by the "$cpprog $src $dsttmp" command + # might cause directories to be created, which would be especially bad + # if $src (and thus $dsttmp) contains '*'. + if test ! -f "$src" && test ! -d "$src"; then + echo "$0: $src does not exist." >&2 + exit 1 + fi + + if test -z "$dst_arg"; then + echo "$0: no destination specified." >&2 + exit 1 + fi + dst=$dst_arg + + # If destination is a directory, append the input filename. + if test -d "$dst"; then + if test "$is_target_a_directory" = never; then + echo "$0: $dst_arg: Is a directory" >&2 + exit 1 + fi + dstdir=$dst + dstbase=`basename "$src"` + case $dst in + */) dst=$dst$dstbase;; + *) dst=$dst/$dstbase;; + esac + dstdir_status=0 + else + dstdir=`dirname "$dst"` + test -d "$dstdir" + dstdir_status=$? + fi + fi + + case $dstdir in + */) dstdirslash=$dstdir;; + *) dstdirslash=$dstdir/;; + esac + + obsolete_mkdir_used=false + + if test $dstdir_status != 0; then + case $posix_mkdir in + '') + # Create intermediate dirs using mode 755 as modified by the umask. + # This is like FreeBSD 'install' as of 1997-10-28. + umask=`umask` + case $stripcmd.$umask in + # Optimize common cases. + *[2367][2367]) mkdir_umask=$umask;; + .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;; + + *[0-7]) + mkdir_umask=`expr $umask + 22 \ + - $umask % 100 % 40 + $umask % 20 \ + - $umask % 10 % 4 + $umask % 2 + `;; + *) mkdir_umask=$umask,go-w;; + esac + + # With -d, create the new directory with the user-specified mode. + # Otherwise, rely on $mkdir_umask. + if test -n "$dir_arg"; then + mkdir_mode=-m$mode + else + mkdir_mode= + fi + + posix_mkdir=false + case $umask in + *[123567][0-7][0-7]) + # POSIX mkdir -p sets u+wx bits regardless of umask, which + # is incompatible with FreeBSD 'install' when (umask & 300) != 0. + ;; + *) + # Note that $RANDOM variable is not portable (e.g. dash); Use it + # here however when possible just to lower collision chance. + tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$ + + trap 'ret=$?; rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir" 2>/dev/null; exit $ret' 0 + + # Because "mkdir -p" follows existing symlinks and we likely work + # directly in world-writeable /tmp, make sure that the '$tmpdir' + # directory is successfully created first before we actually test + # 'mkdir -p' feature. + if (umask $mkdir_umask && + $mkdirprog $mkdir_mode "$tmpdir" && + exec $mkdirprog $mkdir_mode -p -- "$tmpdir/a/b") >/dev/null 2>&1 + then + if test -z "$dir_arg" || { + # Check for POSIX incompatibilities with -m. + # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or + # other-writable bit of parent directory when it shouldn't. + # FreeBSD 6.1 mkdir -m -p sets mode of existing directory. + test_tmpdir="$tmpdir/a" + ls_ld_tmpdir=`ls -ld "$test_tmpdir"` + case $ls_ld_tmpdir in + d????-?r-*) different_mode=700;; + d????-?--*) different_mode=755;; + *) false;; + esac && + $mkdirprog -m$different_mode -p -- "$test_tmpdir" && { + ls_ld_tmpdir_1=`ls -ld "$test_tmpdir"` + test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1" + } + } + then posix_mkdir=: + fi + rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir" + else + # Remove any dirs left behind by ancient mkdir implementations. + rmdir ./$mkdir_mode ./-p ./-- "$tmpdir" 2>/dev/null + fi + trap '' 0;; + esac;; + esac + + if + $posix_mkdir && ( + umask $mkdir_umask && + $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir" + ) + then : + else + + # The umask is ridiculous, or mkdir does not conform to POSIX, + # or it failed possibly due to a race condition. Create the + # directory the slow way, step by step, checking for races as we go. + + case $dstdir in + /*) prefix='/';; + [-=\(\)!]*) prefix='./';; + *) prefix='';; + esac + + oIFS=$IFS + IFS=/ + set -f + set fnord $dstdir + shift + set +f + IFS=$oIFS + + prefixes= + + for d + do + test X"$d" = X && continue + + prefix=$prefix$d + if test -d "$prefix"; then + prefixes= + else + if $posix_mkdir; then + (umask=$mkdir_umask && + $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break + # Don't fail if two instances are running concurrently. + test -d "$prefix" || exit 1 + else + case $prefix in + *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;; + *) qprefix=$prefix;; + esac + prefixes="$prefixes '$qprefix'" + fi + fi + prefix=$prefix/ + done + + if test -n "$prefixes"; then + # Don't fail if two instances are running concurrently. + (umask $mkdir_umask && + eval "\$doit_exec \$mkdirprog $prefixes") || + test -d "$dstdir" || exit 1 + obsolete_mkdir_used=true + fi + fi + fi + + if test -n "$dir_arg"; then + { test -z "$chowncmd" || $doit $chowncmd "$dst"; } && + { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } && + { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false || + test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1 + else + + # Make a couple of temp file names in the proper directory. + dsttmp=${dstdirslash}_inst.$$_ + rmtmp=${dstdirslash}_rm.$$_ + + # Trap to clean up those temp files at exit. + trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0 + + # Copy the file name to the temp name. + (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") && + + # and set any options; do chmod last to preserve setuid bits. + # + # If any of these fail, we abort the whole thing. If we want to + # ignore errors from any of these, just make sure not to ignore + # errors from the above "$doit $cpprog $src $dsttmp" command. + # + { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } && + { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } && + { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } && + { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } && + + # If -C, don't bother to copy if it wouldn't change the file. + if $copy_on_change && + old=`LC_ALL=C ls -dlL "$dst" 2>/dev/null` && + new=`LC_ALL=C ls -dlL "$dsttmp" 2>/dev/null` && + set -f && + set X $old && old=:$2:$4:$5:$6 && + set X $new && new=:$2:$4:$5:$6 && + set +f && + test "$old" = "$new" && + $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1 + then + rm -f "$dsttmp" + else + # Rename the file to the real destination. + $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null || + + # The rename failed, perhaps because mv can't rename something else + # to itself, or perhaps because mv is so ancient that it does not + # support -f. + { + # Now remove or move aside any old file at destination location. + # We try this two ways since rm can't unlink itself on some + # systems and the destination file might be busy for other + # reasons. In this case, the final cleanup might fail but the new + # file should still install successfully. + { + test ! -f "$dst" || + $doit $rmcmd -f "$dst" 2>/dev/null || + { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null && + { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; } + } || + { echo "$0: cannot unlink or rename $dst" >&2 + (exit 1); exit 1 + } + } && + + # Now rename the file to the real destination. + $doit $mvcmd "$dsttmp" "$dst" + } + fi || exit 1 + + trap '' 0 + fi +done + +# Local variables: +# eval: (add-hook 'before-save-hook 'time-stamp) +# time-stamp-start: "scriptversion=" +# time-stamp-format: "%:y-%02m-%02d.%02H" +# time-stamp-time-zone: "UTC0" +# time-stamp-end: "; # UTC" +# End: diff --git a/ltmain.sh b/ltmain.sh new file mode 100644 index 0000000..7f3523d --- /dev/null +++ b/ltmain.sh @@ -0,0 +1,11149 @@ +#! /bin/sh +## DO NOT EDIT - This file generated from ./build-aux/ltmain.in +## by inline-source v2014-01-03.01 + +# libtool (GNU libtool) 2.4.6 +# Provide generalized library-building support services. +# Written by Gordon Matzigkeit , 1996 + +# Copyright (C) 1996-2015 Free Software Foundation, Inc. +# This is free software; see the source for copying conditions. There is NO +# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + +# GNU Libtool is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# As a special exception to the GNU General Public License, +# if you distribute this file as part of a program or library that +# is built using GNU Libtool, you may include this file under the +# same distribution terms that you use for the rest of that program. +# +# GNU Libtool is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + + +PROGRAM=libtool +PACKAGE=libtool +VERSION=2.4.6 +package_revision=2.4.6 + + +## ------ ## +## Usage. ## +## ------ ## + +# Run './libtool --help' for help with using this script from the +# command line. + + +## ------------------------------- ## +## User overridable command paths. ## +## ------------------------------- ## + +# After configure completes, it has a better idea of some of the +# shell tools we need than the defaults used by the functions shared +# with bootstrap, so set those here where they can still be over- +# ridden by the user, but otherwise take precedence. + +: ${AUTOCONF="autoconf"} +: ${AUTOMAKE="automake"} + + +## -------------------------- ## +## Source external libraries. ## +## -------------------------- ## + +# Much of our low-level functionality needs to be sourced from external +# libraries, which are installed to $pkgauxdir. + +# Set a version string for this script. +scriptversion=2015-01-20.17; # UTC + +# General shell script boiler plate, and helper functions. +# Written by Gary V. Vaughan, 2004 + +# Copyright (C) 2004-2015 Free Software Foundation, Inc. +# This is free software; see the source for copying conditions. There is NO +# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. + +# As a special exception to the GNU General Public License, if you distribute +# this file as part of a program or library that is built using GNU Libtool, +# you may include this file under the same distribution terms that you use +# for the rest of that program. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNES FOR A PARTICULAR PURPOSE. See the GNU +# General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +# Please report bugs or propose patches to gary@gnu.org. + + +## ------ ## +## Usage. ## +## ------ ## + +# Evaluate this file near the top of your script to gain access to +# the functions and variables defined here: +# +# . `echo "$0" | ${SED-sed} 's|[^/]*$||'`/build-aux/funclib.sh +# +# If you need to override any of the default environment variable +# settings, do that before evaluating this file. + + +## -------------------- ## +## Shell normalisation. ## +## -------------------- ## + +# Some shells need a little help to be as Bourne compatible as possible. +# Before doing anything else, make sure all that help has been provided! + +DUALCASE=1; export DUALCASE # for MKS sh +if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then : + emulate sh + NULLCMD=: + # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which + # is contrary to our usage. Disable this feature. + alias -g '${1+"$@"}'='"$@"' + setopt NO_GLOB_SUBST +else + case `(set -o) 2>/dev/null` in *posix*) set -o posix ;; esac +fi + +# NLS nuisances: We save the old values in case they are required later. +_G_user_locale= +_G_safe_locale= +for _G_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES +do + eval "if test set = \"\${$_G_var+set}\"; then + save_$_G_var=\$$_G_var + $_G_var=C + export $_G_var + _G_user_locale=\"$_G_var=\\\$save_\$_G_var; \$_G_user_locale\" + _G_safe_locale=\"$_G_var=C; \$_G_safe_locale\" + fi" +done + +# CDPATH. +(unset CDPATH) >/dev/null 2>&1 && unset CDPATH + +# Make sure IFS has a sensible default +sp=' ' +nl=' +' +IFS="$sp $nl" + +# There are apparently some retarded systems that use ';' as a PATH separator! +if test "${PATH_SEPARATOR+set}" != set; then + PATH_SEPARATOR=: + (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && { + (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 || + PATH_SEPARATOR=';' + } +fi + + + +## ------------------------- ## +## Locate command utilities. ## +## ------------------------- ## + + +# func_executable_p FILE +# ---------------------- +# Check that FILE is an executable regular file. +func_executable_p () +{ + test -f "$1" && test -x "$1" +} + + +# func_path_progs PROGS_LIST CHECK_FUNC [PATH] +# -------------------------------------------- +# Search for either a program that responds to --version with output +# containing "GNU", or else returned by CHECK_FUNC otherwise, by +# trying all the directories in PATH with each of the elements of +# PROGS_LIST. +# +# CHECK_FUNC should accept the path to a candidate program, and +# set $func_check_prog_result if it truncates its output less than +# $_G_path_prog_max characters. +func_path_progs () +{ + _G_progs_list=$1 + _G_check_func=$2 + _G_PATH=${3-"$PATH"} + + _G_path_prog_max=0 + _G_path_prog_found=false + _G_save_IFS=$IFS; IFS=${PATH_SEPARATOR-:} + for _G_dir in $_G_PATH; do + IFS=$_G_save_IFS + test -z "$_G_dir" && _G_dir=. + for _G_prog_name in $_G_progs_list; do + for _exeext in '' .EXE; do + _G_path_prog=$_G_dir/$_G_prog_name$_exeext + func_executable_p "$_G_path_prog" || continue + case `"$_G_path_prog" --version 2>&1` in + *GNU*) func_path_progs_result=$_G_path_prog _G_path_prog_found=: ;; + *) $_G_check_func $_G_path_prog + func_path_progs_result=$func_check_prog_result + ;; + esac + $_G_path_prog_found && break 3 + done + done + done + IFS=$_G_save_IFS + test -z "$func_path_progs_result" && { + echo "no acceptable sed could be found in \$PATH" >&2 + exit 1 + } +} + + +# We want to be able to use the functions in this file before configure +# has figured out where the best binaries are kept, which means we have +# to search for them ourselves - except when the results are already set +# where we skip the searches. + +# Unless the user overrides by setting SED, search the path for either GNU +# sed, or the sed that truncates its output the least. +test -z "$SED" && { + _G_sed_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/ + for _G_i in 1 2 3 4 5 6 7; do + _G_sed_script=$_G_sed_script$nl$_G_sed_script + done + echo "$_G_sed_script" 2>/dev/null | sed 99q >conftest.sed + _G_sed_script= + + func_check_prog_sed () + { + _G_path_prog=$1 + + _G_count=0 + printf 0123456789 >conftest.in + while : + do + cat conftest.in conftest.in >conftest.tmp + mv conftest.tmp conftest.in + cp conftest.in conftest.nl + echo '' >> conftest.nl + "$_G_path_prog" -f conftest.sed conftest.out 2>/dev/null || break + diff conftest.out conftest.nl >/dev/null 2>&1 || break + _G_count=`expr $_G_count + 1` + if test "$_G_count" -gt "$_G_path_prog_max"; then + # Best one so far, save it but keep looking for a better one + func_check_prog_result=$_G_path_prog + _G_path_prog_max=$_G_count + fi + # 10*(2^10) chars as input seems more than enough + test 10 -lt "$_G_count" && break + done + rm -f conftest.in conftest.tmp conftest.nl conftest.out + } + + func_path_progs "sed gsed" func_check_prog_sed $PATH:/usr/xpg4/bin + rm -f conftest.sed + SED=$func_path_progs_result +} + + +# Unless the user overrides by setting GREP, search the path for either GNU +# grep, or the grep that truncates its output the least. +test -z "$GREP" && { + func_check_prog_grep () + { + _G_path_prog=$1 + + _G_count=0 + _G_path_prog_max=0 + printf 0123456789 >conftest.in + while : + do + cat conftest.in conftest.in >conftest.tmp + mv conftest.tmp conftest.in + cp conftest.in conftest.nl + echo 'GREP' >> conftest.nl + "$_G_path_prog" -e 'GREP$' -e '-(cannot match)-' conftest.out 2>/dev/null || break + diff conftest.out conftest.nl >/dev/null 2>&1 || break + _G_count=`expr $_G_count + 1` + if test "$_G_count" -gt "$_G_path_prog_max"; then + # Best one so far, save it but keep looking for a better one + func_check_prog_result=$_G_path_prog + _G_path_prog_max=$_G_count + fi + # 10*(2^10) chars as input seems more than enough + test 10 -lt "$_G_count" && break + done + rm -f conftest.in conftest.tmp conftest.nl conftest.out + } + + func_path_progs "grep ggrep" func_check_prog_grep $PATH:/usr/xpg4/bin + GREP=$func_path_progs_result +} + + +## ------------------------------- ## +## User overridable command paths. ## +## ------------------------------- ## + +# All uppercase variable names are used for environment variables. These +# variables can be overridden by the user before calling a script that +# uses them if a suitable command of that name is not already available +# in the command search PATH. + +: ${CP="cp -f"} +: ${ECHO="printf %s\n"} +: ${EGREP="$GREP -E"} +: ${FGREP="$GREP -F"} +: ${LN_S="ln -s"} +: ${MAKE="make"} +: ${MKDIR="mkdir"} +: ${MV="mv -f"} +: ${RM="rm -f"} +: ${SHELL="${CONFIG_SHELL-/bin/sh}"} + + +## -------------------- ## +## Useful sed snippets. ## +## -------------------- ## + +sed_dirname='s|/[^/]*$||' +sed_basename='s|^.*/||' + +# Sed substitution that helps us do robust quoting. It backslashifies +# metacharacters that are still active within double-quoted strings. +sed_quote_subst='s|\([`"$\\]\)|\\\1|g' + +# Same as above, but do not quote variable references. +sed_double_quote_subst='s/\(["`\\]\)/\\\1/g' + +# Sed substitution that turns a string into a regex matching for the +# string literally. +sed_make_literal_regex='s|[].[^$\\*\/]|\\&|g' + +# Sed substitution that converts a w32 file name or path +# that contains forward slashes, into one that contains +# (escaped) backslashes. A very naive implementation. +sed_naive_backslashify='s|\\\\*|\\|g;s|/|\\|g;s|\\|\\\\|g' + +# Re-'\' parameter expansions in output of sed_double_quote_subst that +# were '\'-ed in input to the same. If an odd number of '\' preceded a +# '$' in input to sed_double_quote_subst, that '$' was protected from +# expansion. Since each input '\' is now two '\'s, look for any number +# of runs of four '\'s followed by two '\'s and then a '$'. '\' that '$'. +_G_bs='\\' +_G_bs2='\\\\' +_G_bs4='\\\\\\\\' +_G_dollar='\$' +sed_double_backslash="\ + s/$_G_bs4/&\\ +/g + s/^$_G_bs2$_G_dollar/$_G_bs&/ + s/\\([^$_G_bs]\\)$_G_bs2$_G_dollar/\\1$_G_bs2$_G_bs$_G_dollar/g + s/\n//g" + + +## ----------------- ## +## Global variables. ## +## ----------------- ## + +# Except for the global variables explicitly listed below, the following +# functions in the '^func_' namespace, and the '^require_' namespace +# variables initialised in the 'Resource management' section, sourcing +# this file will not pollute your global namespace with anything +# else. There's no portable way to scope variables in Bourne shell +# though, so actually running these functions will sometimes place +# results into a variable named after the function, and often use +# temporary variables in the '^_G_' namespace. If you are careful to +# avoid using those namespaces casually in your sourcing script, things +# should continue to work as you expect. And, of course, you can freely +# overwrite any of the functions or variables defined here before +# calling anything to customize them. + +EXIT_SUCCESS=0 +EXIT_FAILURE=1 +EXIT_MISMATCH=63 # $? = 63 is used to indicate version mismatch to missing. +EXIT_SKIP=77 # $? = 77 is used to indicate a skipped test to automake. + +# Allow overriding, eg assuming that you follow the convention of +# putting '$debug_cmd' at the start of all your functions, you can get +# bash to show function call trace with: +# +# debug_cmd='eval echo "${FUNCNAME[0]} $*" >&2' bash your-script-name +debug_cmd=${debug_cmd-":"} +exit_cmd=: + +# By convention, finish your script with: +# +# exit $exit_status +# +# so that you can set exit_status to non-zero if you want to indicate +# something went wrong during execution without actually bailing out at +# the point of failure. +exit_status=$EXIT_SUCCESS + +# Work around backward compatibility issue on IRIX 6.5. On IRIX 6.4+, sh +# is ksh but when the shell is invoked as "sh" and the current value of +# the _XPG environment variable is not equal to 1 (one), the special +# positional parameter $0, within a function call, is the name of the +# function. +progpath=$0 + +# The name of this program. +progname=`$ECHO "$progpath" |$SED "$sed_basename"` + +# Make sure we have an absolute progpath for reexecution: +case $progpath in + [\\/]*|[A-Za-z]:\\*) ;; + *[\\/]*) + progdir=`$ECHO "$progpath" |$SED "$sed_dirname"` + progdir=`cd "$progdir" && pwd` + progpath=$progdir/$progname + ;; + *) + _G_IFS=$IFS + IFS=${PATH_SEPARATOR-:} + for progdir in $PATH; do + IFS=$_G_IFS + test -x "$progdir/$progname" && break + done + IFS=$_G_IFS + test -n "$progdir" || progdir=`pwd` + progpath=$progdir/$progname + ;; +esac + + +## ----------------- ## +## Standard options. ## +## ----------------- ## + +# The following options affect the operation of the functions defined +# below, and should be set appropriately depending on run-time para- +# meters passed on the command line. + +opt_dry_run=false +opt_quiet=false +opt_verbose=false + +# Categories 'all' and 'none' are always available. Append any others +# you will pass as the first argument to func_warning from your own +# code. +warning_categories= + +# By default, display warnings according to 'opt_warning_types'. Set +# 'warning_func' to ':' to elide all warnings, or func_fatal_error to +# treat the next displayed warning as a fatal error. +warning_func=func_warn_and_continue + +# Set to 'all' to display all warnings, 'none' to suppress all +# warnings, or a space delimited list of some subset of +# 'warning_categories' to display only the listed warnings. +opt_warning_types=all + + +## -------------------- ## +## Resource management. ## +## -------------------- ## + +# This section contains definitions for functions that each ensure a +# particular resource (a file, or a non-empty configuration variable for +# example) is available, and if appropriate to extract default values +# from pertinent package files. Call them using their associated +# 'require_*' variable to ensure that they are executed, at most, once. +# +# It's entirely deliberate that calling these functions can set +# variables that don't obey the namespace limitations obeyed by the rest +# of this file, in order that that they be as useful as possible to +# callers. + + +# require_term_colors +# ------------------- +# Allow display of bold text on terminals that support it. +require_term_colors=func_require_term_colors +func_require_term_colors () +{ + $debug_cmd + + test -t 1 && { + # COLORTERM and USE_ANSI_COLORS environment variables take + # precedence, because most terminfo databases neglect to describe + # whether color sequences are supported. + test -n "${COLORTERM+set}" && : ${USE_ANSI_COLORS="1"} + + if test 1 = "$USE_ANSI_COLORS"; then + # Standard ANSI escape sequences + tc_reset='' + tc_bold=''; tc_standout='' + tc_red=''; tc_green='' + tc_blue=''; tc_cyan='' + else + # Otherwise trust the terminfo database after all. + test -n "`tput sgr0 2>/dev/null`" && { + tc_reset=`tput sgr0` + test -n "`tput bold 2>/dev/null`" && tc_bold=`tput bold` + tc_standout=$tc_bold + test -n "`tput smso 2>/dev/null`" && tc_standout=`tput smso` + test -n "`tput setaf 1 2>/dev/null`" && tc_red=`tput setaf 1` + test -n "`tput setaf 2 2>/dev/null`" && tc_green=`tput setaf 2` + test -n "`tput setaf 4 2>/dev/null`" && tc_blue=`tput setaf 4` + test -n "`tput setaf 5 2>/dev/null`" && tc_cyan=`tput setaf 5` + } + fi + } + + require_term_colors=: +} + + +## ----------------- ## +## Function library. ## +## ----------------- ## + +# This section contains a variety of useful functions to call in your +# scripts. Take note of the portable wrappers for features provided by +# some modern shells, which will fall back to slower equivalents on +# less featureful shells. + + +# func_append VAR VALUE +# --------------------- +# Append VALUE onto the existing contents of VAR. + + # We should try to minimise forks, especially on Windows where they are + # unreasonably slow, so skip the feature probes when bash or zsh are + # being used: + if test set = "${BASH_VERSION+set}${ZSH_VERSION+set}"; then + : ${_G_HAVE_ARITH_OP="yes"} + : ${_G_HAVE_XSI_OPS="yes"} + # The += operator was introduced in bash 3.1 + case $BASH_VERSION in + [12].* | 3.0 | 3.0*) ;; + *) + : ${_G_HAVE_PLUSEQ_OP="yes"} + ;; + esac + fi + + # _G_HAVE_PLUSEQ_OP + # Can be empty, in which case the shell is probed, "yes" if += is + # useable or anything else if it does not work. + test -z "$_G_HAVE_PLUSEQ_OP" \ + && (eval 'x=a; x+=" b"; test "a b" = "$x"') 2>/dev/null \ + && _G_HAVE_PLUSEQ_OP=yes + +if test yes = "$_G_HAVE_PLUSEQ_OP" +then + # This is an XSI compatible shell, allowing a faster implementation... + eval 'func_append () + { + $debug_cmd + + eval "$1+=\$2" + }' +else + # ...otherwise fall back to using expr, which is often a shell builtin. + func_append () + { + $debug_cmd + + eval "$1=\$$1\$2" + } +fi + + +# func_append_quoted VAR VALUE +# ---------------------------- +# Quote VALUE and append to the end of shell variable VAR, separated +# by a space. +if test yes = "$_G_HAVE_PLUSEQ_OP"; then + eval 'func_append_quoted () + { + $debug_cmd + + func_quote_for_eval "$2" + eval "$1+=\\ \$func_quote_for_eval_result" + }' +else + func_append_quoted () + { + $debug_cmd + + func_quote_for_eval "$2" + eval "$1=\$$1\\ \$func_quote_for_eval_result" + } +fi + + +# func_append_uniq VAR VALUE +# -------------------------- +# Append unique VALUE onto the existing contents of VAR, assuming +# entries are delimited by the first character of VALUE. For example: +# +# func_append_uniq options " --another-option option-argument" +# +# will only append to $options if " --another-option option-argument " +# is not already present somewhere in $options already (note spaces at +# each end implied by leading space in second argument). +func_append_uniq () +{ + $debug_cmd + + eval _G_current_value='`$ECHO $'$1'`' + _G_delim=`expr "$2" : '\(.\)'` + + case $_G_delim$_G_current_value$_G_delim in + *"$2$_G_delim"*) ;; + *) func_append "$@" ;; + esac +} + + +# func_arith TERM... +# ------------------ +# Set func_arith_result to the result of evaluating TERMs. + test -z "$_G_HAVE_ARITH_OP" \ + && (eval 'test 2 = $(( 1 + 1 ))') 2>/dev/null \ + && _G_HAVE_ARITH_OP=yes + +if test yes = "$_G_HAVE_ARITH_OP"; then + eval 'func_arith () + { + $debug_cmd + + func_arith_result=$(( $* )) + }' +else + func_arith () + { + $debug_cmd + + func_arith_result=`expr "$@"` + } +fi + + +# func_basename FILE +# ------------------ +# Set func_basename_result to FILE with everything up to and including +# the last / stripped. +if test yes = "$_G_HAVE_XSI_OPS"; then + # If this shell supports suffix pattern removal, then use it to avoid + # forking. Hide the definitions single quotes in case the shell chokes + # on unsupported syntax... + _b='func_basename_result=${1##*/}' + _d='case $1 in + */*) func_dirname_result=${1%/*}$2 ;; + * ) func_dirname_result=$3 ;; + esac' + +else + # ...otherwise fall back to using sed. + _b='func_basename_result=`$ECHO "$1" |$SED "$sed_basename"`' + _d='func_dirname_result=`$ECHO "$1" |$SED "$sed_dirname"` + if test "X$func_dirname_result" = "X$1"; then + func_dirname_result=$3 + else + func_append func_dirname_result "$2" + fi' +fi + +eval 'func_basename () +{ + $debug_cmd + + '"$_b"' +}' + + +# func_dirname FILE APPEND NONDIR_REPLACEMENT +# ------------------------------------------- +# Compute the dirname of FILE. If nonempty, add APPEND to the result, +# otherwise set result to NONDIR_REPLACEMENT. +eval 'func_dirname () +{ + $debug_cmd + + '"$_d"' +}' + + +# func_dirname_and_basename FILE APPEND NONDIR_REPLACEMENT +# -------------------------------------------------------- +# Perform func_basename and func_dirname in a single function +# call: +# dirname: Compute the dirname of FILE. If nonempty, +# add APPEND to the result, otherwise set result +# to NONDIR_REPLACEMENT. +# value returned in "$func_dirname_result" +# basename: Compute filename of FILE. +# value retuned in "$func_basename_result" +# For efficiency, we do not delegate to the functions above but instead +# duplicate the functionality here. +eval 'func_dirname_and_basename () +{ + $debug_cmd + + '"$_b"' + '"$_d"' +}' + + +# func_echo ARG... +# ---------------- +# Echo program name prefixed message. +func_echo () +{ + $debug_cmd + + _G_message=$* + + func_echo_IFS=$IFS + IFS=$nl + for _G_line in $_G_message; do + IFS=$func_echo_IFS + $ECHO "$progname: $_G_line" + done + IFS=$func_echo_IFS +} + + +# func_echo_all ARG... +# -------------------- +# Invoke $ECHO with all args, space-separated. +func_echo_all () +{ + $ECHO "$*" +} + + +# func_echo_infix_1 INFIX ARG... +# ------------------------------ +# Echo program name, followed by INFIX on the first line, with any +# additional lines not showing INFIX. +func_echo_infix_1 () +{ + $debug_cmd + + $require_term_colors + + _G_infix=$1; shift + _G_indent=$_G_infix + _G_prefix="$progname: $_G_infix: " + _G_message=$* + + # Strip color escape sequences before counting printable length + for _G_tc in "$tc_reset" "$tc_bold" "$tc_standout" "$tc_red" "$tc_green" "$tc_blue" "$tc_cyan" + do + test -n "$_G_tc" && { + _G_esc_tc=`$ECHO "$_G_tc" | $SED "$sed_make_literal_regex"` + _G_indent=`$ECHO "$_G_indent" | $SED "s|$_G_esc_tc||g"` + } + done + _G_indent="$progname: "`echo "$_G_indent" | $SED 's|.| |g'`" " ## exclude from sc_prohibit_nested_quotes + + func_echo_infix_1_IFS=$IFS + IFS=$nl + for _G_line in $_G_message; do + IFS=$func_echo_infix_1_IFS + $ECHO "$_G_prefix$tc_bold$_G_line$tc_reset" >&2 + _G_prefix=$_G_indent + done + IFS=$func_echo_infix_1_IFS +} + + +# func_error ARG... +# ----------------- +# Echo program name prefixed message to standard error. +func_error () +{ + $debug_cmd + + $require_term_colors + + func_echo_infix_1 " $tc_standout${tc_red}error$tc_reset" "$*" >&2 +} + + +# func_fatal_error ARG... +# ----------------------- +# Echo program name prefixed message to standard error, and exit. +func_fatal_error () +{ + $debug_cmd + + func_error "$*" + exit $EXIT_FAILURE +} + + +# func_grep EXPRESSION FILENAME +# ----------------------------- +# Check whether EXPRESSION matches any line of FILENAME, without output. +func_grep () +{ + $debug_cmd + + $GREP "$1" "$2" >/dev/null 2>&1 +} + + +# func_len STRING +# --------------- +# Set func_len_result to the length of STRING. STRING may not +# start with a hyphen. + test -z "$_G_HAVE_XSI_OPS" \ + && (eval 'x=a/b/c; + test 5aa/bb/cc = "${#x}${x%%/*}${x%/*}${x#*/}${x##*/}"') 2>/dev/null \ + && _G_HAVE_XSI_OPS=yes + +if test yes = "$_G_HAVE_XSI_OPS"; then + eval 'func_len () + { + $debug_cmd + + func_len_result=${#1} + }' +else + func_len () + { + $debug_cmd + + func_len_result=`expr "$1" : ".*" 2>/dev/null || echo $max_cmd_len` + } +fi + + +# func_mkdir_p DIRECTORY-PATH +# --------------------------- +# Make sure the entire path to DIRECTORY-PATH is available. +func_mkdir_p () +{ + $debug_cmd + + _G_directory_path=$1 + _G_dir_list= + + if test -n "$_G_directory_path" && test : != "$opt_dry_run"; then + + # Protect directory names starting with '-' + case $_G_directory_path in + -*) _G_directory_path=./$_G_directory_path ;; + esac + + # While some portion of DIR does not yet exist... + while test ! -d "$_G_directory_path"; do + # ...make a list in topmost first order. Use a colon delimited + # list incase some portion of path contains whitespace. + _G_dir_list=$_G_directory_path:$_G_dir_list + + # If the last portion added has no slash in it, the list is done + case $_G_directory_path in */*) ;; *) break ;; esac + + # ...otherwise throw away the child directory and loop + _G_directory_path=`$ECHO "$_G_directory_path" | $SED -e "$sed_dirname"` + done + _G_dir_list=`$ECHO "$_G_dir_list" | $SED 's|:*$||'` + + func_mkdir_p_IFS=$IFS; IFS=: + for _G_dir in $_G_dir_list; do + IFS=$func_mkdir_p_IFS + # mkdir can fail with a 'File exist' error if two processes + # try to create one of the directories concurrently. Don't + # stop in that case! + $MKDIR "$_G_dir" 2>/dev/null || : + done + IFS=$func_mkdir_p_IFS + + # Bail out if we (or some other process) failed to create a directory. + test -d "$_G_directory_path" || \ + func_fatal_error "Failed to create '$1'" + fi +} + + +# func_mktempdir [BASENAME] +# ------------------------- +# Make a temporary directory that won't clash with other running +# libtool processes, and avoids race conditions if possible. If +# given, BASENAME is the basename for that directory. +func_mktempdir () +{ + $debug_cmd + + _G_template=${TMPDIR-/tmp}/${1-$progname} + + if test : = "$opt_dry_run"; then + # Return a directory name, but don't create it in dry-run mode + _G_tmpdir=$_G_template-$$ + else + + # If mktemp works, use that first and foremost + _G_tmpdir=`mktemp -d "$_G_template-XXXXXXXX" 2>/dev/null` + + if test ! -d "$_G_tmpdir"; then + # Failing that, at least try and use $RANDOM to avoid a race + _G_tmpdir=$_G_template-${RANDOM-0}$$ + + func_mktempdir_umask=`umask` + umask 0077 + $MKDIR "$_G_tmpdir" + umask $func_mktempdir_umask + fi + + # If we're not in dry-run mode, bomb out on failure + test -d "$_G_tmpdir" || \ + func_fatal_error "cannot create temporary directory '$_G_tmpdir'" + fi + + $ECHO "$_G_tmpdir" +} + + +# func_normal_abspath PATH +# ------------------------ +# Remove doubled-up and trailing slashes, "." path components, +# and cancel out any ".." path components in PATH after making +# it an absolute path. +func_normal_abspath () +{ + $debug_cmd + + # These SED scripts presuppose an absolute path with a trailing slash. + _G_pathcar='s|^/\([^/]*\).*$|\1|' + _G_pathcdr='s|^/[^/]*||' + _G_removedotparts=':dotsl + s|/\./|/|g + t dotsl + s|/\.$|/|' + _G_collapseslashes='s|/\{1,\}|/|g' + _G_finalslash='s|/*$|/|' + + # Start from root dir and reassemble the path. + func_normal_abspath_result= + func_normal_abspath_tpath=$1 + func_normal_abspath_altnamespace= + case $func_normal_abspath_tpath in + "") + # Empty path, that just means $cwd. + func_stripname '' '/' "`pwd`" + func_normal_abspath_result=$func_stripname_result + return + ;; + # The next three entries are used to spot a run of precisely + # two leading slashes without using negated character classes; + # we take advantage of case's first-match behaviour. + ///*) + # Unusual form of absolute path, do nothing. + ;; + //*) + # Not necessarily an ordinary path; POSIX reserves leading '//' + # and for example Cygwin uses it to access remote file shares + # over CIFS/SMB, so we conserve a leading double slash if found. + func_normal_abspath_altnamespace=/ + ;; + /*) + # Absolute path, do nothing. + ;; + *) + # Relative path, prepend $cwd. + func_normal_abspath_tpath=`pwd`/$func_normal_abspath_tpath + ;; + esac + + # Cancel out all the simple stuff to save iterations. We also want + # the path to end with a slash for ease of parsing, so make sure + # there is one (and only one) here. + func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \ + -e "$_G_removedotparts" -e "$_G_collapseslashes" -e "$_G_finalslash"` + while :; do + # Processed it all yet? + if test / = "$func_normal_abspath_tpath"; then + # If we ascended to the root using ".." the result may be empty now. + if test -z "$func_normal_abspath_result"; then + func_normal_abspath_result=/ + fi + break + fi + func_normal_abspath_tcomponent=`$ECHO "$func_normal_abspath_tpath" | $SED \ + -e "$_G_pathcar"` + func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \ + -e "$_G_pathcdr"` + # Figure out what to do with it + case $func_normal_abspath_tcomponent in + "") + # Trailing empty path component, ignore it. + ;; + ..) + # Parent dir; strip last assembled component from result. + func_dirname "$func_normal_abspath_result" + func_normal_abspath_result=$func_dirname_result + ;; + *) + # Actual path component, append it. + func_append func_normal_abspath_result "/$func_normal_abspath_tcomponent" + ;; + esac + done + # Restore leading double-slash if one was found on entry. + func_normal_abspath_result=$func_normal_abspath_altnamespace$func_normal_abspath_result +} + + +# func_notquiet ARG... +# -------------------- +# Echo program name prefixed message only when not in quiet mode. +func_notquiet () +{ + $debug_cmd + + $opt_quiet || func_echo ${1+"$@"} + + # A bug in bash halts the script if the last line of a function + # fails when set -e is in force, so we need another command to + # work around that: + : +} + + +# func_relative_path SRCDIR DSTDIR +# -------------------------------- +# Set func_relative_path_result to the relative path from SRCDIR to DSTDIR. +func_relative_path () +{ + $debug_cmd + + func_relative_path_result= + func_normal_abspath "$1" + func_relative_path_tlibdir=$func_normal_abspath_result + func_normal_abspath "$2" + func_relative_path_tbindir=$func_normal_abspath_result + + # Ascend the tree starting from libdir + while :; do + # check if we have found a prefix of bindir + case $func_relative_path_tbindir in + $func_relative_path_tlibdir) + # found an exact match + func_relative_path_tcancelled= + break + ;; + $func_relative_path_tlibdir*) + # found a matching prefix + func_stripname "$func_relative_path_tlibdir" '' "$func_relative_path_tbindir" + func_relative_path_tcancelled=$func_stripname_result + if test -z "$func_relative_path_result"; then + func_relative_path_result=. + fi + break + ;; + *) + func_dirname $func_relative_path_tlibdir + func_relative_path_tlibdir=$func_dirname_result + if test -z "$func_relative_path_tlibdir"; then + # Have to descend all the way to the root! + func_relative_path_result=../$func_relative_path_result + func_relative_path_tcancelled=$func_relative_path_tbindir + break + fi + func_relative_path_result=../$func_relative_path_result + ;; + esac + done + + # Now calculate path; take care to avoid doubling-up slashes. + func_stripname '' '/' "$func_relative_path_result" + func_relative_path_result=$func_stripname_result + func_stripname '/' '/' "$func_relative_path_tcancelled" + if test -n "$func_stripname_result"; then + func_append func_relative_path_result "/$func_stripname_result" + fi + + # Normalisation. If bindir is libdir, return '.' else relative path. + if test -n "$func_relative_path_result"; then + func_stripname './' '' "$func_relative_path_result" + func_relative_path_result=$func_stripname_result + fi + + test -n "$func_relative_path_result" || func_relative_path_result=. + + : +} + + +# func_quote_for_eval ARG... +# -------------------------- +# Aesthetically quote ARGs to be evaled later. +# This function returns two values: +# i) func_quote_for_eval_result +# double-quoted, suitable for a subsequent eval +# ii) func_quote_for_eval_unquoted_result +# has all characters that are still active within double +# quotes backslashified. +func_quote_for_eval () +{ + $debug_cmd + + func_quote_for_eval_unquoted_result= + func_quote_for_eval_result= + while test 0 -lt $#; do + case $1 in + *[\\\`\"\$]*) + _G_unquoted_arg=`printf '%s\n' "$1" |$SED "$sed_quote_subst"` ;; + *) + _G_unquoted_arg=$1 ;; + esac + if test -n "$func_quote_for_eval_unquoted_result"; then + func_append func_quote_for_eval_unquoted_result " $_G_unquoted_arg" + else + func_append func_quote_for_eval_unquoted_result "$_G_unquoted_arg" + fi + + case $_G_unquoted_arg in + # Double-quote args containing shell metacharacters to delay + # word splitting, command substitution and variable expansion + # for a subsequent eval. + # Many Bourne shells cannot handle close brackets correctly + # in scan sets, so we specify it separately. + *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"") + _G_quoted_arg=\"$_G_unquoted_arg\" + ;; + *) + _G_quoted_arg=$_G_unquoted_arg + ;; + esac + + if test -n "$func_quote_for_eval_result"; then + func_append func_quote_for_eval_result " $_G_quoted_arg" + else + func_append func_quote_for_eval_result "$_G_quoted_arg" + fi + shift + done +} + + +# func_quote_for_expand ARG +# ------------------------- +# Aesthetically quote ARG to be evaled later; same as above, +# but do not quote variable references. +func_quote_for_expand () +{ + $debug_cmd + + case $1 in + *[\\\`\"]*) + _G_arg=`$ECHO "$1" | $SED \ + -e "$sed_double_quote_subst" -e "$sed_double_backslash"` ;; + *) + _G_arg=$1 ;; + esac + + case $_G_arg in + # Double-quote args containing shell metacharacters to delay + # word splitting and command substitution for a subsequent eval. + # Many Bourne shells cannot handle close brackets correctly + # in scan sets, so we specify it separately. + *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"") + _G_arg=\"$_G_arg\" + ;; + esac + + func_quote_for_expand_result=$_G_arg +} + + +# func_stripname PREFIX SUFFIX NAME +# --------------------------------- +# strip PREFIX and SUFFIX from NAME, and store in func_stripname_result. +# PREFIX and SUFFIX must not contain globbing or regex special +# characters, hashes, percent signs, but SUFFIX may contain a leading +# dot (in which case that matches only a dot). +if test yes = "$_G_HAVE_XSI_OPS"; then + eval 'func_stripname () + { + $debug_cmd + + # pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are + # positional parameters, so assign one to ordinary variable first. + func_stripname_result=$3 + func_stripname_result=${func_stripname_result#"$1"} + func_stripname_result=${func_stripname_result%"$2"} + }' +else + func_stripname () + { + $debug_cmd + + case $2 in + .*) func_stripname_result=`$ECHO "$3" | $SED -e "s%^$1%%" -e "s%\\\\$2\$%%"`;; + *) func_stripname_result=`$ECHO "$3" | $SED -e "s%^$1%%" -e "s%$2\$%%"`;; + esac + } +fi + + +# func_show_eval CMD [FAIL_EXP] +# ----------------------------- +# Unless opt_quiet is true, then output CMD. Then, if opt_dryrun is +# not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP +# is given, then evaluate it. +func_show_eval () +{ + $debug_cmd + + _G_cmd=$1 + _G_fail_exp=${2-':'} + + func_quote_for_expand "$_G_cmd" + eval "func_notquiet $func_quote_for_expand_result" + + $opt_dry_run || { + eval "$_G_cmd" + _G_status=$? + if test 0 -ne "$_G_status"; then + eval "(exit $_G_status); $_G_fail_exp" + fi + } +} + + +# func_show_eval_locale CMD [FAIL_EXP] +# ------------------------------------ +# Unless opt_quiet is true, then output CMD. Then, if opt_dryrun is +# not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP +# is given, then evaluate it. Use the saved locale for evaluation. +func_show_eval_locale () +{ + $debug_cmd + + _G_cmd=$1 + _G_fail_exp=${2-':'} + + $opt_quiet || { + func_quote_for_expand "$_G_cmd" + eval "func_echo $func_quote_for_expand_result" + } + + $opt_dry_run || { + eval "$_G_user_locale + $_G_cmd" + _G_status=$? + eval "$_G_safe_locale" + if test 0 -ne "$_G_status"; then + eval "(exit $_G_status); $_G_fail_exp" + fi + } +} + + +# func_tr_sh +# ---------- +# Turn $1 into a string suitable for a shell variable name. +# Result is stored in $func_tr_sh_result. All characters +# not in the set a-zA-Z0-9_ are replaced with '_'. Further, +# if $1 begins with a digit, a '_' is prepended as well. +func_tr_sh () +{ + $debug_cmd + + case $1 in + [0-9]* | *[!a-zA-Z0-9_]*) + func_tr_sh_result=`$ECHO "$1" | $SED -e 's/^\([0-9]\)/_\1/' -e 's/[^a-zA-Z0-9_]/_/g'` + ;; + * ) + func_tr_sh_result=$1 + ;; + esac +} + + +# func_verbose ARG... +# ------------------- +# Echo program name prefixed message in verbose mode only. +func_verbose () +{ + $debug_cmd + + $opt_verbose && func_echo "$*" + + : +} + + +# func_warn_and_continue ARG... +# ----------------------------- +# Echo program name prefixed warning message to standard error. +func_warn_and_continue () +{ + $debug_cmd + + $require_term_colors + + func_echo_infix_1 "${tc_red}warning$tc_reset" "$*" >&2 +} + + +# func_warning CATEGORY ARG... +# ---------------------------- +# Echo program name prefixed warning message to standard error. Warning +# messages can be filtered according to CATEGORY, where this function +# elides messages where CATEGORY is not listed in the global variable +# 'opt_warning_types'. +func_warning () +{ + $debug_cmd + + # CATEGORY must be in the warning_categories list! + case " $warning_categories " in + *" $1 "*) ;; + *) func_internal_error "invalid warning category '$1'" ;; + esac + + _G_category=$1 + shift + + case " $opt_warning_types " in + *" $_G_category "*) $warning_func ${1+"$@"} ;; + esac +} + + +# func_sort_ver VER1 VER2 +# ----------------------- +# 'sort -V' is not generally available. +# Note this deviates from the version comparison in automake +# in that it treats 1.5 < 1.5.0, and treats 1.4.4a < 1.4-p3a +# but this should suffice as we won't be specifying old +# version formats or redundant trailing .0 in bootstrap.conf. +# If we did want full compatibility then we should probably +# use m4_version_compare from autoconf. +func_sort_ver () +{ + $debug_cmd + + printf '%s\n%s\n' "$1" "$2" \ + | sort -t. -k 1,1n -k 2,2n -k 3,3n -k 4,4n -k 5,5n -k 6,6n -k 7,7n -k 8,8n -k 9,9n +} + +# func_lt_ver PREV CURR +# --------------------- +# Return true if PREV and CURR are in the correct order according to +# func_sort_ver, otherwise false. Use it like this: +# +# func_lt_ver "$prev_ver" "$proposed_ver" || func_fatal_error "..." +func_lt_ver () +{ + $debug_cmd + + test "x$1" = x`func_sort_ver "$1" "$2" | $SED 1q` +} + + +# Local variables: +# mode: shell-script +# sh-indentation: 2 +# eval: (add-hook 'before-save-hook 'time-stamp) +# time-stamp-pattern: "10/scriptversion=%:y-%02m-%02d.%02H; # UTC" +# time-stamp-time-zone: "UTC" +# End: +#! /bin/sh + +# Set a version string for this script. +scriptversion=2014-01-07.03; # UTC + +# A portable, pluggable option parser for Bourne shell. +# Written by Gary V. Vaughan, 2010 + +# Copyright (C) 2010-2015 Free Software Foundation, Inc. +# This is free software; see the source for copying conditions. There is NO +# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +# Please report bugs or propose patches to gary@gnu.org. + + +## ------ ## +## Usage. ## +## ------ ## + +# This file is a library for parsing options in your shell scripts along +# with assorted other useful supporting features that you can make use +# of too. +# +# For the simplest scripts you might need only: +# +# #!/bin/sh +# . relative/path/to/funclib.sh +# . relative/path/to/options-parser +# scriptversion=1.0 +# func_options ${1+"$@"} +# eval set dummy "$func_options_result"; shift +# ...rest of your script... +# +# In order for the '--version' option to work, you will need to have a +# suitably formatted comment like the one at the top of this file +# starting with '# Written by ' and ending with '# warranty; '. +# +# For '-h' and '--help' to work, you will also need a one line +# description of your script's purpose in a comment directly above the +# '# Written by ' line, like the one at the top of this file. +# +# The default options also support '--debug', which will turn on shell +# execution tracing (see the comment above debug_cmd below for another +# use), and '--verbose' and the func_verbose function to allow your script +# to display verbose messages only when your user has specified +# '--verbose'. +# +# After sourcing this file, you can plug processing for additional +# options by amending the variables from the 'Configuration' section +# below, and following the instructions in the 'Option parsing' +# section further down. + +## -------------- ## +## Configuration. ## +## -------------- ## + +# You should override these variables in your script after sourcing this +# file so that they reflect the customisations you have added to the +# option parser. + +# The usage line for option parsing errors and the start of '-h' and +# '--help' output messages. You can embed shell variables for delayed +# expansion at the time the message is displayed, but you will need to +# quote other shell meta-characters carefully to prevent them being +# expanded when the contents are evaled. +usage='$progpath [OPTION]...' + +# Short help message in response to '-h' and '--help'. Add to this or +# override it after sourcing this library to reflect the full set of +# options your script accepts. +usage_message="\ + --debug enable verbose shell tracing + -W, --warnings=CATEGORY + report the warnings falling in CATEGORY [all] + -v, --verbose verbosely report processing + --version print version information and exit + -h, --help print short or long help message and exit +" + +# Additional text appended to 'usage_message' in response to '--help'. +long_help_message=" +Warning categories include: + 'all' show all warnings + 'none' turn off all the warnings + 'error' warnings are treated as fatal errors" + +# Help message printed before fatal option parsing errors. +fatal_help="Try '\$progname --help' for more information." + + + +## ------------------------- ## +## Hook function management. ## +## ------------------------- ## + +# This section contains functions for adding, removing, and running hooks +# to the main code. A hook is just a named list of of function, that can +# be run in order later on. + +# func_hookable FUNC_NAME +# ----------------------- +# Declare that FUNC_NAME will run hooks added with +# 'func_add_hook FUNC_NAME ...'. +func_hookable () +{ + $debug_cmd + + func_append hookable_fns " $1" +} + + +# func_add_hook FUNC_NAME HOOK_FUNC +# --------------------------------- +# Request that FUNC_NAME call HOOK_FUNC before it returns. FUNC_NAME must +# first have been declared "hookable" by a call to 'func_hookable'. +func_add_hook () +{ + $debug_cmd + + case " $hookable_fns " in + *" $1 "*) ;; + *) func_fatal_error "'$1' does not accept hook functions." ;; + esac + + eval func_append ${1}_hooks '" $2"' +} + + +# func_remove_hook FUNC_NAME HOOK_FUNC +# ------------------------------------ +# Remove HOOK_FUNC from the list of functions called by FUNC_NAME. +func_remove_hook () +{ + $debug_cmd + + eval ${1}_hooks='`$ECHO "\$'$1'_hooks" |$SED "s| '$2'||"`' +} + + +# func_run_hooks FUNC_NAME [ARG]... +# --------------------------------- +# Run all hook functions registered to FUNC_NAME. +# It is assumed that the list of hook functions contains nothing more +# than a whitespace-delimited list of legal shell function names, and +# no effort is wasted trying to catch shell meta-characters or preserve +# whitespace. +func_run_hooks () +{ + $debug_cmd + + case " $hookable_fns " in + *" $1 "*) ;; + *) func_fatal_error "'$1' does not support hook funcions.n" ;; + esac + + eval _G_hook_fns=\$$1_hooks; shift + + for _G_hook in $_G_hook_fns; do + eval $_G_hook '"$@"' + + # store returned options list back into positional + # parameters for next 'cmd' execution. + eval _G_hook_result=\$${_G_hook}_result + eval set dummy "$_G_hook_result"; shift + done + + func_quote_for_eval ${1+"$@"} + func_run_hooks_result=$func_quote_for_eval_result +} + + + +## --------------- ## +## Option parsing. ## +## --------------- ## + +# In order to add your own option parsing hooks, you must accept the +# full positional parameter list in your hook function, remove any +# options that you action, and then pass back the remaining unprocessed +# options in '_result', escaped suitably for +# 'eval'. Like this: +# +# my_options_prep () +# { +# $debug_cmd +# +# # Extend the existing usage message. +# usage_message=$usage_message' +# -s, --silent don'\''t print informational messages +# ' +# +# func_quote_for_eval ${1+"$@"} +# my_options_prep_result=$func_quote_for_eval_result +# } +# func_add_hook func_options_prep my_options_prep +# +# +# my_silent_option () +# { +# $debug_cmd +# +# # Note that for efficiency, we parse as many options as we can +# # recognise in a loop before passing the remainder back to the +# # caller on the first unrecognised argument we encounter. +# while test $# -gt 0; do +# opt=$1; shift +# case $opt in +# --silent|-s) opt_silent=: ;; +# # Separate non-argument short options: +# -s*) func_split_short_opt "$_G_opt" +# set dummy "$func_split_short_opt_name" \ +# "-$func_split_short_opt_arg" ${1+"$@"} +# shift +# ;; +# *) set dummy "$_G_opt" "$*"; shift; break ;; +# esac +# done +# +# func_quote_for_eval ${1+"$@"} +# my_silent_option_result=$func_quote_for_eval_result +# } +# func_add_hook func_parse_options my_silent_option +# +# +# my_option_validation () +# { +# $debug_cmd +# +# $opt_silent && $opt_verbose && func_fatal_help "\ +# '--silent' and '--verbose' options are mutually exclusive." +# +# func_quote_for_eval ${1+"$@"} +# my_option_validation_result=$func_quote_for_eval_result +# } +# func_add_hook func_validate_options my_option_validation +# +# You'll alse need to manually amend $usage_message to reflect the extra +# options you parse. It's preferable to append if you can, so that +# multiple option parsing hooks can be added safely. + + +# func_options [ARG]... +# --------------------- +# All the functions called inside func_options are hookable. See the +# individual implementations for details. +func_hookable func_options +func_options () +{ + $debug_cmd + + func_options_prep ${1+"$@"} + eval func_parse_options \ + ${func_options_prep_result+"$func_options_prep_result"} + eval func_validate_options \ + ${func_parse_options_result+"$func_parse_options_result"} + + eval func_run_hooks func_options \ + ${func_validate_options_result+"$func_validate_options_result"} + + # save modified positional parameters for caller + func_options_result=$func_run_hooks_result +} + + +# func_options_prep [ARG]... +# -------------------------- +# All initialisations required before starting the option parse loop. +# Note that when calling hook functions, we pass through the list of +# positional parameters. If a hook function modifies that list, and +# needs to propogate that back to rest of this script, then the complete +# modified list must be put in 'func_run_hooks_result' before +# returning. +func_hookable func_options_prep +func_options_prep () +{ + $debug_cmd + + # Option defaults: + opt_verbose=false + opt_warning_types= + + func_run_hooks func_options_prep ${1+"$@"} + + # save modified positional parameters for caller + func_options_prep_result=$func_run_hooks_result +} + + +# func_parse_options [ARG]... +# --------------------------- +# The main option parsing loop. +func_hookable func_parse_options +func_parse_options () +{ + $debug_cmd + + func_parse_options_result= + + # this just eases exit handling + while test $# -gt 0; do + # Defer to hook functions for initial option parsing, so they + # get priority in the event of reusing an option name. + func_run_hooks func_parse_options ${1+"$@"} + + # Adjust func_parse_options positional parameters to match + eval set dummy "$func_run_hooks_result"; shift + + # Break out of the loop if we already parsed every option. + test $# -gt 0 || break + + _G_opt=$1 + shift + case $_G_opt in + --debug|-x) debug_cmd='set -x' + func_echo "enabling shell trace mode" + $debug_cmd + ;; + + --no-warnings|--no-warning|--no-warn) + set dummy --warnings none ${1+"$@"} + shift + ;; + + --warnings|--warning|-W) + test $# = 0 && func_missing_arg $_G_opt && break + case " $warning_categories $1" in + *" $1 "*) + # trailing space prevents matching last $1 above + func_append_uniq opt_warning_types " $1" + ;; + *all) + opt_warning_types=$warning_categories + ;; + *none) + opt_warning_types=none + warning_func=: + ;; + *error) + opt_warning_types=$warning_categories + warning_func=func_fatal_error + ;; + *) + func_fatal_error \ + "unsupported warning category: '$1'" + ;; + esac + shift + ;; + + --verbose|-v) opt_verbose=: ;; + --version) func_version ;; + -\?|-h) func_usage ;; + --help) func_help ;; + + # Separate optargs to long options (plugins may need this): + --*=*) func_split_equals "$_G_opt" + set dummy "$func_split_equals_lhs" \ + "$func_split_equals_rhs" ${1+"$@"} + shift + ;; + + # Separate optargs to short options: + -W*) + func_split_short_opt "$_G_opt" + set dummy "$func_split_short_opt_name" \ + "$func_split_short_opt_arg" ${1+"$@"} + shift + ;; + + # Separate non-argument short options: + -\?*|-h*|-v*|-x*) + func_split_short_opt "$_G_opt" + set dummy "$func_split_short_opt_name" \ + "-$func_split_short_opt_arg" ${1+"$@"} + shift + ;; + + --) break ;; + -*) func_fatal_help "unrecognised option: '$_G_opt'" ;; + *) set dummy "$_G_opt" ${1+"$@"}; shift; break ;; + esac + done + + # save modified positional parameters for caller + func_quote_for_eval ${1+"$@"} + func_parse_options_result=$func_quote_for_eval_result +} + + +# func_validate_options [ARG]... +# ------------------------------ +# Perform any sanity checks on option settings and/or unconsumed +# arguments. +func_hookable func_validate_options +func_validate_options () +{ + $debug_cmd + + # Display all warnings if -W was not given. + test -n "$opt_warning_types" || opt_warning_types=" $warning_categories" + + func_run_hooks func_validate_options ${1+"$@"} + + # Bail if the options were screwed! + $exit_cmd $EXIT_FAILURE + + # save modified positional parameters for caller + func_validate_options_result=$func_run_hooks_result +} + + + +## ----------------- ## +## Helper functions. ## +## ----------------- ## + +# This section contains the helper functions used by the rest of the +# hookable option parser framework in ascii-betical order. + + +# func_fatal_help ARG... +# ---------------------- +# Echo program name prefixed message to standard error, followed by +# a help hint, and exit. +func_fatal_help () +{ + $debug_cmd + + eval \$ECHO \""Usage: $usage"\" + eval \$ECHO \""$fatal_help"\" + func_error ${1+"$@"} + exit $EXIT_FAILURE +} + + +# func_help +# --------- +# Echo long help message to standard output and exit. +func_help () +{ + $debug_cmd + + func_usage_message + $ECHO "$long_help_message" + exit 0 +} + + +# func_missing_arg ARGNAME +# ------------------------ +# Echo program name prefixed message to standard error and set global +# exit_cmd. +func_missing_arg () +{ + $debug_cmd + + func_error "Missing argument for '$1'." + exit_cmd=exit +} + + +# func_split_equals STRING +# ------------------------ +# Set func_split_equals_lhs and func_split_equals_rhs shell variables after +# splitting STRING at the '=' sign. +test -z "$_G_HAVE_XSI_OPS" \ + && (eval 'x=a/b/c; + test 5aa/bb/cc = "${#x}${x%%/*}${x%/*}${x#*/}${x##*/}"') 2>/dev/null \ + && _G_HAVE_XSI_OPS=yes + +if test yes = "$_G_HAVE_XSI_OPS" +then + # This is an XSI compatible shell, allowing a faster implementation... + eval 'func_split_equals () + { + $debug_cmd + + func_split_equals_lhs=${1%%=*} + func_split_equals_rhs=${1#*=} + test "x$func_split_equals_lhs" = "x$1" \ + && func_split_equals_rhs= + }' +else + # ...otherwise fall back to using expr, which is often a shell builtin. + func_split_equals () + { + $debug_cmd + + func_split_equals_lhs=`expr "x$1" : 'x\([^=]*\)'` + func_split_equals_rhs= + test "x$func_split_equals_lhs" = "x$1" \ + || func_split_equals_rhs=`expr "x$1" : 'x[^=]*=\(.*\)$'` + } +fi #func_split_equals + + +# func_split_short_opt SHORTOPT +# ----------------------------- +# Set func_split_short_opt_name and func_split_short_opt_arg shell +# variables after splitting SHORTOPT after the 2nd character. +if test yes = "$_G_HAVE_XSI_OPS" +then + # This is an XSI compatible shell, allowing a faster implementation... + eval 'func_split_short_opt () + { + $debug_cmd + + func_split_short_opt_arg=${1#??} + func_split_short_opt_name=${1%"$func_split_short_opt_arg"} + }' +else + # ...otherwise fall back to using expr, which is often a shell builtin. + func_split_short_opt () + { + $debug_cmd + + func_split_short_opt_name=`expr "x$1" : 'x-\(.\)'` + func_split_short_opt_arg=`expr "x$1" : 'x-.\(.*\)$'` + } +fi #func_split_short_opt + + +# func_usage +# ---------- +# Echo short help message to standard output and exit. +func_usage () +{ + $debug_cmd + + func_usage_message + $ECHO "Run '$progname --help |${PAGER-more}' for full usage" + exit 0 +} + + +# func_usage_message +# ------------------ +# Echo short help message to standard output. +func_usage_message () +{ + $debug_cmd + + eval \$ECHO \""Usage: $usage"\" + echo + $SED -n 's|^# || + /^Written by/{ + x;p;x + } + h + /^Written by/q' < "$progpath" + echo + eval \$ECHO \""$usage_message"\" +} + + +# func_version +# ------------ +# Echo version message to standard output and exit. +func_version () +{ + $debug_cmd + + printf '%s\n' "$progname $scriptversion" + $SED -n ' + /(C)/!b go + :more + /\./!{ + N + s|\n# | | + b more + } + :go + /^# Written by /,/# warranty; / { + s|^# || + s|^# *$|| + s|\((C)\)[ 0-9,-]*[ ,-]\([1-9][0-9]* \)|\1 \2| + p + } + /^# Written by / { + s|^# || + p + } + /^warranty; /q' < "$progpath" + + exit $? +} + + +# Local variables: +# mode: shell-script +# sh-indentation: 2 +# eval: (add-hook 'before-save-hook 'time-stamp) +# time-stamp-pattern: "10/scriptversion=%:y-%02m-%02d.%02H; # UTC" +# time-stamp-time-zone: "UTC" +# End: + +# Set a version string. +scriptversion='(GNU libtool) 2.4.6' + + +# func_echo ARG... +# ---------------- +# Libtool also displays the current mode in messages, so override +# funclib.sh func_echo with this custom definition. +func_echo () +{ + $debug_cmd + + _G_message=$* + + func_echo_IFS=$IFS + IFS=$nl + for _G_line in $_G_message; do + IFS=$func_echo_IFS + $ECHO "$progname${opt_mode+: $opt_mode}: $_G_line" + done + IFS=$func_echo_IFS +} + + +# func_warning ARG... +# ------------------- +# Libtool warnings are not categorized, so override funclib.sh +# func_warning with this simpler definition. +func_warning () +{ + $debug_cmd + + $warning_func ${1+"$@"} +} + + +## ---------------- ## +## Options parsing. ## +## ---------------- ## + +# Hook in the functions to make sure our own options are parsed during +# the option parsing loop. + +usage='$progpath [OPTION]... [MODE-ARG]...' + +# Short help message in response to '-h'. +usage_message="Options: + --config show all configuration variables + --debug enable verbose shell tracing + -n, --dry-run display commands without modifying any files + --features display basic configuration information and exit + --mode=MODE use operation mode MODE + --no-warnings equivalent to '-Wnone' + --preserve-dup-deps don't remove duplicate dependency libraries + --quiet, --silent don't print informational messages + --tag=TAG use configuration variables from tag TAG + -v, --verbose print more informational messages than default + --version print version information + -W, --warnings=CATEGORY report the warnings falling in CATEGORY [all] + -h, --help, --help-all print short, long, or detailed help message +" + +# Additional text appended to 'usage_message' in response to '--help'. +func_help () +{ + $debug_cmd + + func_usage_message + $ECHO "$long_help_message + +MODE must be one of the following: + + clean remove files from the build directory + compile compile a source file into a libtool object + execute automatically set library path, then run a program + finish complete the installation of libtool libraries + install install libraries or executables + link create a library or an executable + uninstall remove libraries from an installed directory + +MODE-ARGS vary depending on the MODE. When passed as first option, +'--mode=MODE' may be abbreviated as 'MODE' or a unique abbreviation of that. +Try '$progname --help --mode=MODE' for a more detailed description of MODE. + +When reporting a bug, please describe a test case to reproduce it and +include the following information: + + host-triplet: $host + shell: $SHELL + compiler: $LTCC + compiler flags: $LTCFLAGS + linker: $LD (gnu? $with_gnu_ld) + version: $progname (GNU libtool) 2.4.6 + automake: `($AUTOMAKE --version) 2>/dev/null |$SED 1q` + autoconf: `($AUTOCONF --version) 2>/dev/null |$SED 1q` + +Report bugs to . +GNU libtool home page: . +General help using GNU software: ." + exit 0 +} + + +# func_lo2o OBJECT-NAME +# --------------------- +# Transform OBJECT-NAME from a '.lo' suffix to the platform specific +# object suffix. + +lo2o=s/\\.lo\$/.$objext/ +o2lo=s/\\.$objext\$/.lo/ + +if test yes = "$_G_HAVE_XSI_OPS"; then + eval 'func_lo2o () + { + case $1 in + *.lo) func_lo2o_result=${1%.lo}.$objext ;; + * ) func_lo2o_result=$1 ;; + esac + }' + + # func_xform LIBOBJ-OR-SOURCE + # --------------------------- + # Transform LIBOBJ-OR-SOURCE from a '.o' or '.c' (or otherwise) + # suffix to a '.lo' libtool-object suffix. + eval 'func_xform () + { + func_xform_result=${1%.*}.lo + }' +else + # ...otherwise fall back to using sed. + func_lo2o () + { + func_lo2o_result=`$ECHO "$1" | $SED "$lo2o"` + } + + func_xform () + { + func_xform_result=`$ECHO "$1" | $SED 's|\.[^.]*$|.lo|'` + } +fi + + +# func_fatal_configuration ARG... +# ------------------------------- +# Echo program name prefixed message to standard error, followed by +# a configuration failure hint, and exit. +func_fatal_configuration () +{ + func_fatal_error ${1+"$@"} \ + "See the $PACKAGE documentation for more information." \ + "Fatal configuration error." +} + + +# func_config +# ----------- +# Display the configuration for all the tags in this script. +func_config () +{ + re_begincf='^# ### BEGIN LIBTOOL' + re_endcf='^# ### END LIBTOOL' + + # Default configuration. + $SED "1,/$re_begincf CONFIG/d;/$re_endcf CONFIG/,\$d" < "$progpath" + + # Now print the configurations for the tags. + for tagname in $taglist; do + $SED -n "/$re_begincf TAG CONFIG: $tagname\$/,/$re_endcf TAG CONFIG: $tagname\$/p" < "$progpath" + done + + exit $? +} + + +# func_features +# ------------- +# Display the features supported by this script. +func_features () +{ + echo "host: $host" + if test yes = "$build_libtool_libs"; then + echo "enable shared libraries" + else + echo "disable shared libraries" + fi + if test yes = "$build_old_libs"; then + echo "enable static libraries" + else + echo "disable static libraries" + fi + + exit $? +} + + +# func_enable_tag TAGNAME +# ----------------------- +# Verify that TAGNAME is valid, and either flag an error and exit, or +# enable the TAGNAME tag. We also add TAGNAME to the global $taglist +# variable here. +func_enable_tag () +{ + # Global variable: + tagname=$1 + + re_begincf="^# ### BEGIN LIBTOOL TAG CONFIG: $tagname\$" + re_endcf="^# ### END LIBTOOL TAG CONFIG: $tagname\$" + sed_extractcf=/$re_begincf/,/$re_endcf/p + + # Validate tagname. + case $tagname in + *[!-_A-Za-z0-9,/]*) + func_fatal_error "invalid tag name: $tagname" + ;; + esac + + # Don't test for the "default" C tag, as we know it's + # there but not specially marked. + case $tagname in + CC) ;; + *) + if $GREP "$re_begincf" "$progpath" >/dev/null 2>&1; then + taglist="$taglist $tagname" + + # Evaluate the configuration. Be careful to quote the path + # and the sed script, to avoid splitting on whitespace, but + # also don't use non-portable quotes within backquotes within + # quotes we have to do it in 2 steps: + extractedcf=`$SED -n -e "$sed_extractcf" < "$progpath"` + eval "$extractedcf" + else + func_error "ignoring unknown tag $tagname" + fi + ;; + esac +} + + +# func_check_version_match +# ------------------------ +# Ensure that we are using m4 macros, and libtool script from the same +# release of libtool. +func_check_version_match () +{ + if test "$package_revision" != "$macro_revision"; then + if test "$VERSION" != "$macro_version"; then + if test -z "$macro_version"; then + cat >&2 <<_LT_EOF +$progname: Version mismatch error. This is $PACKAGE $VERSION, but the +$progname: definition of this LT_INIT comes from an older release. +$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION +$progname: and run autoconf again. +_LT_EOF + else + cat >&2 <<_LT_EOF +$progname: Version mismatch error. This is $PACKAGE $VERSION, but the +$progname: definition of this LT_INIT comes from $PACKAGE $macro_version. +$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION +$progname: and run autoconf again. +_LT_EOF + fi + else + cat >&2 <<_LT_EOF +$progname: Version mismatch error. This is $PACKAGE $VERSION, revision $package_revision, +$progname: but the definition of this LT_INIT comes from revision $macro_revision. +$progname: You should recreate aclocal.m4 with macros from revision $package_revision +$progname: of $PACKAGE $VERSION and run autoconf again. +_LT_EOF + fi + + exit $EXIT_MISMATCH + fi +} + + +# libtool_options_prep [ARG]... +# ----------------------------- +# Preparation for options parsed by libtool. +libtool_options_prep () +{ + $debug_mode + + # Option defaults: + opt_config=false + opt_dlopen= + opt_dry_run=false + opt_help=false + opt_mode= + opt_preserve_dup_deps=false + opt_quiet=false + + nonopt= + preserve_args= + + # Shorthand for --mode=foo, only valid as the first argument + case $1 in + clean|clea|cle|cl) + shift; set dummy --mode clean ${1+"$@"}; shift + ;; + compile|compil|compi|comp|com|co|c) + shift; set dummy --mode compile ${1+"$@"}; shift + ;; + execute|execut|execu|exec|exe|ex|e) + shift; set dummy --mode execute ${1+"$@"}; shift + ;; + finish|finis|fini|fin|fi|f) + shift; set dummy --mode finish ${1+"$@"}; shift + ;; + install|instal|insta|inst|ins|in|i) + shift; set dummy --mode install ${1+"$@"}; shift + ;; + link|lin|li|l) + shift; set dummy --mode link ${1+"$@"}; shift + ;; + uninstall|uninstal|uninsta|uninst|unins|unin|uni|un|u) + shift; set dummy --mode uninstall ${1+"$@"}; shift + ;; + esac + + # Pass back the list of options. + func_quote_for_eval ${1+"$@"} + libtool_options_prep_result=$func_quote_for_eval_result +} +func_add_hook func_options_prep libtool_options_prep + + +# libtool_parse_options [ARG]... +# --------------------------------- +# Provide handling for libtool specific options. +libtool_parse_options () +{ + $debug_cmd + + # Perform our own loop to consume as many options as possible in + # each iteration. + while test $# -gt 0; do + _G_opt=$1 + shift + case $_G_opt in + --dry-run|--dryrun|-n) + opt_dry_run=: + ;; + + --config) func_config ;; + + --dlopen|-dlopen) + opt_dlopen="${opt_dlopen+$opt_dlopen +}$1" + shift + ;; + + --preserve-dup-deps) + opt_preserve_dup_deps=: ;; + + --features) func_features ;; + + --finish) set dummy --mode finish ${1+"$@"}; shift ;; + + --help) opt_help=: ;; + + --help-all) opt_help=': help-all' ;; + + --mode) test $# = 0 && func_missing_arg $_G_opt && break + opt_mode=$1 + case $1 in + # Valid mode arguments: + clean|compile|execute|finish|install|link|relink|uninstall) ;; + + # Catch anything else as an error + *) func_error "invalid argument for $_G_opt" + exit_cmd=exit + break + ;; + esac + shift + ;; + + --no-silent|--no-quiet) + opt_quiet=false + func_append preserve_args " $_G_opt" + ;; + + --no-warnings|--no-warning|--no-warn) + opt_warning=false + func_append preserve_args " $_G_opt" + ;; + + --no-verbose) + opt_verbose=false + func_append preserve_args " $_G_opt" + ;; + + --silent|--quiet) + opt_quiet=: + opt_verbose=false + func_append preserve_args " $_G_opt" + ;; + + --tag) test $# = 0 && func_missing_arg $_G_opt && break + opt_tag=$1 + func_append preserve_args " $_G_opt $1" + func_enable_tag "$1" + shift + ;; + + --verbose|-v) opt_quiet=false + opt_verbose=: + func_append preserve_args " $_G_opt" + ;; + + # An option not handled by this hook function: + *) set dummy "$_G_opt" ${1+"$@"}; shift; break ;; + esac + done + + + # save modified positional parameters for caller + func_quote_for_eval ${1+"$@"} + libtool_parse_options_result=$func_quote_for_eval_result +} +func_add_hook func_parse_options libtool_parse_options + + + +# libtool_validate_options [ARG]... +# --------------------------------- +# Perform any sanity checks on option settings and/or unconsumed +# arguments. +libtool_validate_options () +{ + # save first non-option argument + if test 0 -lt $#; then + nonopt=$1 + shift + fi + + # preserve --debug + test : = "$debug_cmd" || func_append preserve_args " --debug" + + case $host in + # Solaris2 added to fix http://debbugs.gnu.org/cgi/bugreport.cgi?bug=16452 + # see also: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59788 + *cygwin* | *mingw* | *pw32* | *cegcc* | *solaris2* | *os2*) + # don't eliminate duplications in $postdeps and $predeps + opt_duplicate_compiler_generated_deps=: + ;; + *) + opt_duplicate_compiler_generated_deps=$opt_preserve_dup_deps + ;; + esac + + $opt_help || { + # Sanity checks first: + func_check_version_match + + test yes != "$build_libtool_libs" \ + && test yes != "$build_old_libs" \ + && func_fatal_configuration "not configured to build any kind of library" + + # Darwin sucks + eval std_shrext=\"$shrext_cmds\" + + # Only execute mode is allowed to have -dlopen flags. + if test -n "$opt_dlopen" && test execute != "$opt_mode"; then + func_error "unrecognized option '-dlopen'" + $ECHO "$help" 1>&2 + exit $EXIT_FAILURE + fi + + # Change the help message to a mode-specific one. + generic_help=$help + help="Try '$progname --help --mode=$opt_mode' for more information." + } + + # Pass back the unparsed argument list + func_quote_for_eval ${1+"$@"} + libtool_validate_options_result=$func_quote_for_eval_result +} +func_add_hook func_validate_options libtool_validate_options + + +# Process options as early as possible so that --help and --version +# can return quickly. +func_options ${1+"$@"} +eval set dummy "$func_options_result"; shift + + + +## ----------- ## +## Main. ## +## ----------- ## + +magic='%%%MAGIC variable%%%' +magic_exe='%%%MAGIC EXE variable%%%' + +# Global variables. +extracted_archives= +extracted_serial=0 + +# If this variable is set in any of the actions, the command in it +# will be execed at the end. This prevents here-documents from being +# left over by shells. +exec_cmd= + + +# A function that is used when there is no print builtin or printf. +func_fallback_echo () +{ + eval 'cat <<_LTECHO_EOF +$1 +_LTECHO_EOF' +} + +# func_generated_by_libtool +# True iff stdin has been generated by Libtool. This function is only +# a basic sanity check; it will hardly flush out determined imposters. +func_generated_by_libtool_p () +{ + $GREP "^# Generated by .*$PACKAGE" > /dev/null 2>&1 +} + +# func_lalib_p file +# True iff FILE is a libtool '.la' library or '.lo' object file. +# This function is only a basic sanity check; it will hardly flush out +# determined imposters. +func_lalib_p () +{ + test -f "$1" && + $SED -e 4q "$1" 2>/dev/null | func_generated_by_libtool_p +} + +# func_lalib_unsafe_p file +# True iff FILE is a libtool '.la' library or '.lo' object file. +# This function implements the same check as func_lalib_p without +# resorting to external programs. To this end, it redirects stdin and +# closes it afterwards, without saving the original file descriptor. +# As a safety measure, use it only where a negative result would be +# fatal anyway. Works if 'file' does not exist. +func_lalib_unsafe_p () +{ + lalib_p=no + if test -f "$1" && test -r "$1" && exec 5<&0 <"$1"; then + for lalib_p_l in 1 2 3 4 + do + read lalib_p_line + case $lalib_p_line in + \#\ Generated\ by\ *$PACKAGE* ) lalib_p=yes; break;; + esac + done + exec 0<&5 5<&- + fi + test yes = "$lalib_p" +} + +# func_ltwrapper_script_p file +# True iff FILE is a libtool wrapper script +# This function is only a basic sanity check; it will hardly flush out +# determined imposters. +func_ltwrapper_script_p () +{ + test -f "$1" && + $lt_truncate_bin < "$1" 2>/dev/null | func_generated_by_libtool_p +} + +# func_ltwrapper_executable_p file +# True iff FILE is a libtool wrapper executable +# This function is only a basic sanity check; it will hardly flush out +# determined imposters. +func_ltwrapper_executable_p () +{ + func_ltwrapper_exec_suffix= + case $1 in + *.exe) ;; + *) func_ltwrapper_exec_suffix=.exe ;; + esac + $GREP "$magic_exe" "$1$func_ltwrapper_exec_suffix" >/dev/null 2>&1 +} + +# func_ltwrapper_scriptname file +# Assumes file is an ltwrapper_executable +# uses $file to determine the appropriate filename for a +# temporary ltwrapper_script. +func_ltwrapper_scriptname () +{ + func_dirname_and_basename "$1" "" "." + func_stripname '' '.exe' "$func_basename_result" + func_ltwrapper_scriptname_result=$func_dirname_result/$objdir/${func_stripname_result}_ltshwrapper +} + +# func_ltwrapper_p file +# True iff FILE is a libtool wrapper script or wrapper executable +# This function is only a basic sanity check; it will hardly flush out +# determined imposters. +func_ltwrapper_p () +{ + func_ltwrapper_script_p "$1" || func_ltwrapper_executable_p "$1" +} + + +# func_execute_cmds commands fail_cmd +# Execute tilde-delimited COMMANDS. +# If FAIL_CMD is given, eval that upon failure. +# FAIL_CMD may read-access the current command in variable CMD! +func_execute_cmds () +{ + $debug_cmd + + save_ifs=$IFS; IFS='~' + for cmd in $1; do + IFS=$sp$nl + eval cmd=\"$cmd\" + IFS=$save_ifs + func_show_eval "$cmd" "${2-:}" + done + IFS=$save_ifs +} + + +# func_source file +# Source FILE, adding directory component if necessary. +# Note that it is not necessary on cygwin/mingw to append a dot to +# FILE even if both FILE and FILE.exe exist: automatic-append-.exe +# behavior happens only for exec(3), not for open(2)! Also, sourcing +# 'FILE.' does not work on cygwin managed mounts. +func_source () +{ + $debug_cmd + + case $1 in + */* | *\\*) . "$1" ;; + *) . "./$1" ;; + esac +} + + +# func_resolve_sysroot PATH +# Replace a leading = in PATH with a sysroot. Store the result into +# func_resolve_sysroot_result +func_resolve_sysroot () +{ + func_resolve_sysroot_result=$1 + case $func_resolve_sysroot_result in + =*) + func_stripname '=' '' "$func_resolve_sysroot_result" + func_resolve_sysroot_result=$lt_sysroot$func_stripname_result + ;; + esac +} + +# func_replace_sysroot PATH +# If PATH begins with the sysroot, replace it with = and +# store the result into func_replace_sysroot_result. +func_replace_sysroot () +{ + case $lt_sysroot:$1 in + ?*:"$lt_sysroot"*) + func_stripname "$lt_sysroot" '' "$1" + func_replace_sysroot_result='='$func_stripname_result + ;; + *) + # Including no sysroot. + func_replace_sysroot_result=$1 + ;; + esac +} + +# func_infer_tag arg +# Infer tagged configuration to use if any are available and +# if one wasn't chosen via the "--tag" command line option. +# Only attempt this if the compiler in the base compile +# command doesn't match the default compiler. +# arg is usually of the form 'gcc ...' +func_infer_tag () +{ + $debug_cmd + + if test -n "$available_tags" && test -z "$tagname"; then + CC_quoted= + for arg in $CC; do + func_append_quoted CC_quoted "$arg" + done + CC_expanded=`func_echo_all $CC` + CC_quoted_expanded=`func_echo_all $CC_quoted` + case $@ in + # Blanks in the command may have been stripped by the calling shell, + # but not from the CC environment variable when configure was run. + " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \ + " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*) ;; + # Blanks at the start of $base_compile will cause this to fail + # if we don't check for them as well. + *) + for z in $available_tags; do + if $GREP "^# ### BEGIN LIBTOOL TAG CONFIG: $z$" < "$progpath" > /dev/null; then + # Evaluate the configuration. + eval "`$SED -n -e '/^# ### BEGIN LIBTOOL TAG CONFIG: '$z'$/,/^# ### END LIBTOOL TAG CONFIG: '$z'$/p' < $progpath`" + CC_quoted= + for arg in $CC; do + # Double-quote args containing other shell metacharacters. + func_append_quoted CC_quoted "$arg" + done + CC_expanded=`func_echo_all $CC` + CC_quoted_expanded=`func_echo_all $CC_quoted` + case "$@ " in + " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \ + " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*) + # The compiler in the base compile command matches + # the one in the tagged configuration. + # Assume this is the tagged configuration we want. + tagname=$z + break + ;; + esac + fi + done + # If $tagname still isn't set, then no tagged configuration + # was found and let the user know that the "--tag" command + # line option must be used. + if test -z "$tagname"; then + func_echo "unable to infer tagged configuration" + func_fatal_error "specify a tag with '--tag'" +# else +# func_verbose "using $tagname tagged configuration" + fi + ;; + esac + fi +} + + + +# func_write_libtool_object output_name pic_name nonpic_name +# Create a libtool object file (analogous to a ".la" file), +# but don't create it if we're doing a dry run. +func_write_libtool_object () +{ + write_libobj=$1 + if test yes = "$build_libtool_libs"; then + write_lobj=\'$2\' + else + write_lobj=none + fi + + if test yes = "$build_old_libs"; then + write_oldobj=\'$3\' + else + write_oldobj=none + fi + + $opt_dry_run || { + cat >${write_libobj}T </dev/null` + if test "$?" -eq 0 && test -n "$func_convert_core_file_wine_to_w32_tmp"; then + func_convert_core_file_wine_to_w32_result=`$ECHO "$func_convert_core_file_wine_to_w32_tmp" | + $SED -e "$sed_naive_backslashify"` + else + func_convert_core_file_wine_to_w32_result= + fi + fi +} +# end: func_convert_core_file_wine_to_w32 + + +# func_convert_core_path_wine_to_w32 ARG +# Helper function used by path conversion functions when $build is *nix, and +# $host is mingw, cygwin, or some other w32 environment. Relies on a correctly +# configured wine environment available, with the winepath program in $build's +# $PATH. Assumes ARG has no leading or trailing path separator characters. +# +# ARG is path to be converted from $build format to win32. +# Result is available in $func_convert_core_path_wine_to_w32_result. +# Unconvertible file (directory) names in ARG are skipped; if no directory names +# are convertible, then the result may be empty. +func_convert_core_path_wine_to_w32 () +{ + $debug_cmd + + # unfortunately, winepath doesn't convert paths, only file names + func_convert_core_path_wine_to_w32_result= + if test -n "$1"; then + oldIFS=$IFS + IFS=: + for func_convert_core_path_wine_to_w32_f in $1; do + IFS=$oldIFS + func_convert_core_file_wine_to_w32 "$func_convert_core_path_wine_to_w32_f" + if test -n "$func_convert_core_file_wine_to_w32_result"; then + if test -z "$func_convert_core_path_wine_to_w32_result"; then + func_convert_core_path_wine_to_w32_result=$func_convert_core_file_wine_to_w32_result + else + func_append func_convert_core_path_wine_to_w32_result ";$func_convert_core_file_wine_to_w32_result" + fi + fi + done + IFS=$oldIFS + fi +} +# end: func_convert_core_path_wine_to_w32 + + +# func_cygpath ARGS... +# Wrapper around calling the cygpath program via LT_CYGPATH. This is used when +# when (1) $build is *nix and Cygwin is hosted via a wine environment; or (2) +# $build is MSYS and $host is Cygwin, or (3) $build is Cygwin. In case (1) or +# (2), returns the Cygwin file name or path in func_cygpath_result (input +# file name or path is assumed to be in w32 format, as previously converted +# from $build's *nix or MSYS format). In case (3), returns the w32 file name +# or path in func_cygpath_result (input file name or path is assumed to be in +# Cygwin format). Returns an empty string on error. +# +# ARGS are passed to cygpath, with the last one being the file name or path to +# be converted. +# +# Specify the absolute *nix (or w32) name to cygpath in the LT_CYGPATH +# environment variable; do not put it in $PATH. +func_cygpath () +{ + $debug_cmd + + if test -n "$LT_CYGPATH" && test -f "$LT_CYGPATH"; then + func_cygpath_result=`$LT_CYGPATH "$@" 2>/dev/null` + if test "$?" -ne 0; then + # on failure, ensure result is empty + func_cygpath_result= + fi + else + func_cygpath_result= + func_error "LT_CYGPATH is empty or specifies non-existent file: '$LT_CYGPATH'" + fi +} +#end: func_cygpath + + +# func_convert_core_msys_to_w32 ARG +# Convert file name or path ARG from MSYS format to w32 format. Return +# result in func_convert_core_msys_to_w32_result. +func_convert_core_msys_to_w32 () +{ + $debug_cmd + + # awkward: cmd appends spaces to result + func_convert_core_msys_to_w32_result=`( cmd //c echo "$1" ) 2>/dev/null | + $SED -e 's/[ ]*$//' -e "$sed_naive_backslashify"` +} +#end: func_convert_core_msys_to_w32 + + +# func_convert_file_check ARG1 ARG2 +# Verify that ARG1 (a file name in $build format) was converted to $host +# format in ARG2. Otherwise, emit an error message, but continue (resetting +# func_to_host_file_result to ARG1). +func_convert_file_check () +{ + $debug_cmd + + if test -z "$2" && test -n "$1"; then + func_error "Could not determine host file name corresponding to" + func_error " '$1'" + func_error "Continuing, but uninstalled executables may not work." + # Fallback: + func_to_host_file_result=$1 + fi +} +# end func_convert_file_check + + +# func_convert_path_check FROM_PATHSEP TO_PATHSEP FROM_PATH TO_PATH +# Verify that FROM_PATH (a path in $build format) was converted to $host +# format in TO_PATH. Otherwise, emit an error message, but continue, resetting +# func_to_host_file_result to a simplistic fallback value (see below). +func_convert_path_check () +{ + $debug_cmd + + if test -z "$4" && test -n "$3"; then + func_error "Could not determine the host path corresponding to" + func_error " '$3'" + func_error "Continuing, but uninstalled executables may not work." + # Fallback. This is a deliberately simplistic "conversion" and + # should not be "improved". See libtool.info. + if test "x$1" != "x$2"; then + lt_replace_pathsep_chars="s|$1|$2|g" + func_to_host_path_result=`echo "$3" | + $SED -e "$lt_replace_pathsep_chars"` + else + func_to_host_path_result=$3 + fi + fi +} +# end func_convert_path_check + + +# func_convert_path_front_back_pathsep FRONTPAT BACKPAT REPL ORIG +# Modifies func_to_host_path_result by prepending REPL if ORIG matches FRONTPAT +# and appending REPL if ORIG matches BACKPAT. +func_convert_path_front_back_pathsep () +{ + $debug_cmd + + case $4 in + $1 ) func_to_host_path_result=$3$func_to_host_path_result + ;; + esac + case $4 in + $2 ) func_append func_to_host_path_result "$3" + ;; + esac +} +# end func_convert_path_front_back_pathsep + + +################################################## +# $build to $host FILE NAME CONVERSION FUNCTIONS # +################################################## +# invoked via '$to_host_file_cmd ARG' +# +# In each case, ARG is the path to be converted from $build to $host format. +# Result will be available in $func_to_host_file_result. + + +# func_to_host_file ARG +# Converts the file name ARG from $build format to $host format. Return result +# in func_to_host_file_result. +func_to_host_file () +{ + $debug_cmd + + $to_host_file_cmd "$1" +} +# end func_to_host_file + + +# func_to_tool_file ARG LAZY +# converts the file name ARG from $build format to toolchain format. Return +# result in func_to_tool_file_result. If the conversion in use is listed +# in (the comma separated) LAZY, no conversion takes place. +func_to_tool_file () +{ + $debug_cmd + + case ,$2, in + *,"$to_tool_file_cmd",*) + func_to_tool_file_result=$1 + ;; + *) + $to_tool_file_cmd "$1" + func_to_tool_file_result=$func_to_host_file_result + ;; + esac +} +# end func_to_tool_file + + +# func_convert_file_noop ARG +# Copy ARG to func_to_host_file_result. +func_convert_file_noop () +{ + func_to_host_file_result=$1 +} +# end func_convert_file_noop + + +# func_convert_file_msys_to_w32 ARG +# Convert file name ARG from (mingw) MSYS to (mingw) w32 format; automatic +# conversion to w32 is not available inside the cwrapper. Returns result in +# func_to_host_file_result. +func_convert_file_msys_to_w32 () +{ + $debug_cmd + + func_to_host_file_result=$1 + if test -n "$1"; then + func_convert_core_msys_to_w32 "$1" + func_to_host_file_result=$func_convert_core_msys_to_w32_result + fi + func_convert_file_check "$1" "$func_to_host_file_result" +} +# end func_convert_file_msys_to_w32 + + +# func_convert_file_cygwin_to_w32 ARG +# Convert file name ARG from Cygwin to w32 format. Returns result in +# func_to_host_file_result. +func_convert_file_cygwin_to_w32 () +{ + $debug_cmd + + func_to_host_file_result=$1 + if test -n "$1"; then + # because $build is cygwin, we call "the" cygpath in $PATH; no need to use + # LT_CYGPATH in this case. + func_to_host_file_result=`cygpath -m "$1"` + fi + func_convert_file_check "$1" "$func_to_host_file_result" +} +# end func_convert_file_cygwin_to_w32 + + +# func_convert_file_nix_to_w32 ARG +# Convert file name ARG from *nix to w32 format. Requires a wine environment +# and a working winepath. Returns result in func_to_host_file_result. +func_convert_file_nix_to_w32 () +{ + $debug_cmd + + func_to_host_file_result=$1 + if test -n "$1"; then + func_convert_core_file_wine_to_w32 "$1" + func_to_host_file_result=$func_convert_core_file_wine_to_w32_result + fi + func_convert_file_check "$1" "$func_to_host_file_result" +} +# end func_convert_file_nix_to_w32 + + +# func_convert_file_msys_to_cygwin ARG +# Convert file name ARG from MSYS to Cygwin format. Requires LT_CYGPATH set. +# Returns result in func_to_host_file_result. +func_convert_file_msys_to_cygwin () +{ + $debug_cmd + + func_to_host_file_result=$1 + if test -n "$1"; then + func_convert_core_msys_to_w32 "$1" + func_cygpath -u "$func_convert_core_msys_to_w32_result" + func_to_host_file_result=$func_cygpath_result + fi + func_convert_file_check "$1" "$func_to_host_file_result" +} +# end func_convert_file_msys_to_cygwin + + +# func_convert_file_nix_to_cygwin ARG +# Convert file name ARG from *nix to Cygwin format. Requires Cygwin installed +# in a wine environment, working winepath, and LT_CYGPATH set. Returns result +# in func_to_host_file_result. +func_convert_file_nix_to_cygwin () +{ + $debug_cmd + + func_to_host_file_result=$1 + if test -n "$1"; then + # convert from *nix to w32, then use cygpath to convert from w32 to cygwin. + func_convert_core_file_wine_to_w32 "$1" + func_cygpath -u "$func_convert_core_file_wine_to_w32_result" + func_to_host_file_result=$func_cygpath_result + fi + func_convert_file_check "$1" "$func_to_host_file_result" +} +# end func_convert_file_nix_to_cygwin + + +############################################# +# $build to $host PATH CONVERSION FUNCTIONS # +############################################# +# invoked via '$to_host_path_cmd ARG' +# +# In each case, ARG is the path to be converted from $build to $host format. +# The result will be available in $func_to_host_path_result. +# +# Path separators are also converted from $build format to $host format. If +# ARG begins or ends with a path separator character, it is preserved (but +# converted to $host format) on output. +# +# All path conversion functions are named using the following convention: +# file name conversion function : func_convert_file_X_to_Y () +# path conversion function : func_convert_path_X_to_Y () +# where, for any given $build/$host combination the 'X_to_Y' value is the +# same. If conversion functions are added for new $build/$host combinations, +# the two new functions must follow this pattern, or func_init_to_host_path_cmd +# will break. + + +# func_init_to_host_path_cmd +# Ensures that function "pointer" variable $to_host_path_cmd is set to the +# appropriate value, based on the value of $to_host_file_cmd. +to_host_path_cmd= +func_init_to_host_path_cmd () +{ + $debug_cmd + + if test -z "$to_host_path_cmd"; then + func_stripname 'func_convert_file_' '' "$to_host_file_cmd" + to_host_path_cmd=func_convert_path_$func_stripname_result + fi +} + + +# func_to_host_path ARG +# Converts the path ARG from $build format to $host format. Return result +# in func_to_host_path_result. +func_to_host_path () +{ + $debug_cmd + + func_init_to_host_path_cmd + $to_host_path_cmd "$1" +} +# end func_to_host_path + + +# func_convert_path_noop ARG +# Copy ARG to func_to_host_path_result. +func_convert_path_noop () +{ + func_to_host_path_result=$1 +} +# end func_convert_path_noop + + +# func_convert_path_msys_to_w32 ARG +# Convert path ARG from (mingw) MSYS to (mingw) w32 format; automatic +# conversion to w32 is not available inside the cwrapper. Returns result in +# func_to_host_path_result. +func_convert_path_msys_to_w32 () +{ + $debug_cmd + + func_to_host_path_result=$1 + if test -n "$1"; then + # Remove leading and trailing path separator characters from ARG. MSYS + # behavior is inconsistent here; cygpath turns them into '.;' and ';.'; + # and winepath ignores them completely. + func_stripname : : "$1" + func_to_host_path_tmp1=$func_stripname_result + func_convert_core_msys_to_w32 "$func_to_host_path_tmp1" + func_to_host_path_result=$func_convert_core_msys_to_w32_result + func_convert_path_check : ";" \ + "$func_to_host_path_tmp1" "$func_to_host_path_result" + func_convert_path_front_back_pathsep ":*" "*:" ";" "$1" + fi +} +# end func_convert_path_msys_to_w32 + + +# func_convert_path_cygwin_to_w32 ARG +# Convert path ARG from Cygwin to w32 format. Returns result in +# func_to_host_file_result. +func_convert_path_cygwin_to_w32 () +{ + $debug_cmd + + func_to_host_path_result=$1 + if test -n "$1"; then + # See func_convert_path_msys_to_w32: + func_stripname : : "$1" + func_to_host_path_tmp1=$func_stripname_result + func_to_host_path_result=`cygpath -m -p "$func_to_host_path_tmp1"` + func_convert_path_check : ";" \ + "$func_to_host_path_tmp1" "$func_to_host_path_result" + func_convert_path_front_back_pathsep ":*" "*:" ";" "$1" + fi +} +# end func_convert_path_cygwin_to_w32 + + +# func_convert_path_nix_to_w32 ARG +# Convert path ARG from *nix to w32 format. Requires a wine environment and +# a working winepath. Returns result in func_to_host_file_result. +func_convert_path_nix_to_w32 () +{ + $debug_cmd + + func_to_host_path_result=$1 + if test -n "$1"; then + # See func_convert_path_msys_to_w32: + func_stripname : : "$1" + func_to_host_path_tmp1=$func_stripname_result + func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1" + func_to_host_path_result=$func_convert_core_path_wine_to_w32_result + func_convert_path_check : ";" \ + "$func_to_host_path_tmp1" "$func_to_host_path_result" + func_convert_path_front_back_pathsep ":*" "*:" ";" "$1" + fi +} +# end func_convert_path_nix_to_w32 + + +# func_convert_path_msys_to_cygwin ARG +# Convert path ARG from MSYS to Cygwin format. Requires LT_CYGPATH set. +# Returns result in func_to_host_file_result. +func_convert_path_msys_to_cygwin () +{ + $debug_cmd + + func_to_host_path_result=$1 + if test -n "$1"; then + # See func_convert_path_msys_to_w32: + func_stripname : : "$1" + func_to_host_path_tmp1=$func_stripname_result + func_convert_core_msys_to_w32 "$func_to_host_path_tmp1" + func_cygpath -u -p "$func_convert_core_msys_to_w32_result" + func_to_host_path_result=$func_cygpath_result + func_convert_path_check : : \ + "$func_to_host_path_tmp1" "$func_to_host_path_result" + func_convert_path_front_back_pathsep ":*" "*:" : "$1" + fi +} +# end func_convert_path_msys_to_cygwin + + +# func_convert_path_nix_to_cygwin ARG +# Convert path ARG from *nix to Cygwin format. Requires Cygwin installed in a +# a wine environment, working winepath, and LT_CYGPATH set. Returns result in +# func_to_host_file_result. +func_convert_path_nix_to_cygwin () +{ + $debug_cmd + + func_to_host_path_result=$1 + if test -n "$1"; then + # Remove leading and trailing path separator characters from + # ARG. msys behavior is inconsistent here, cygpath turns them + # into '.;' and ';.', and winepath ignores them completely. + func_stripname : : "$1" + func_to_host_path_tmp1=$func_stripname_result + func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1" + func_cygpath -u -p "$func_convert_core_path_wine_to_w32_result" + func_to_host_path_result=$func_cygpath_result + func_convert_path_check : : \ + "$func_to_host_path_tmp1" "$func_to_host_path_result" + func_convert_path_front_back_pathsep ":*" "*:" : "$1" + fi +} +# end func_convert_path_nix_to_cygwin + + +# func_dll_def_p FILE +# True iff FILE is a Windows DLL '.def' file. +# Keep in sync with _LT_DLL_DEF_P in libtool.m4 +func_dll_def_p () +{ + $debug_cmd + + func_dll_def_p_tmp=`$SED -n \ + -e 's/^[ ]*//' \ + -e '/^\(;.*\)*$/d' \ + -e 's/^\(EXPORTS\|LIBRARY\)\([ ].*\)*$/DEF/p' \ + -e q \ + "$1"` + test DEF = "$func_dll_def_p_tmp" +} + + +# func_mode_compile arg... +func_mode_compile () +{ + $debug_cmd + + # Get the compilation command and the source file. + base_compile= + srcfile=$nonopt # always keep a non-empty value in "srcfile" + suppress_opt=yes + suppress_output= + arg_mode=normal + libobj= + later= + pie_flag= + + for arg + do + case $arg_mode in + arg ) + # do not "continue". Instead, add this to base_compile + lastarg=$arg + arg_mode=normal + ;; + + target ) + libobj=$arg + arg_mode=normal + continue + ;; + + normal ) + # Accept any command-line options. + case $arg in + -o) + test -n "$libobj" && \ + func_fatal_error "you cannot specify '-o' more than once" + arg_mode=target + continue + ;; + + -pie | -fpie | -fPIE) + func_append pie_flag " $arg" + continue + ;; + + -shared | -static | -prefer-pic | -prefer-non-pic) + func_append later " $arg" + continue + ;; + + -no-suppress) + suppress_opt=no + continue + ;; + + -Xcompiler) + arg_mode=arg # the next one goes into the "base_compile" arg list + continue # The current "srcfile" will either be retained or + ;; # replaced later. I would guess that would be a bug. + + -Wc,*) + func_stripname '-Wc,' '' "$arg" + args=$func_stripname_result + lastarg= + save_ifs=$IFS; IFS=, + for arg in $args; do + IFS=$save_ifs + func_append_quoted lastarg "$arg" + done + IFS=$save_ifs + func_stripname ' ' '' "$lastarg" + lastarg=$func_stripname_result + + # Add the arguments to base_compile. + func_append base_compile " $lastarg" + continue + ;; + + *) + # Accept the current argument as the source file. + # The previous "srcfile" becomes the current argument. + # + lastarg=$srcfile + srcfile=$arg + ;; + esac # case $arg + ;; + esac # case $arg_mode + + # Aesthetically quote the previous argument. + func_append_quoted base_compile "$lastarg" + done # for arg + + case $arg_mode in + arg) + func_fatal_error "you must specify an argument for -Xcompile" + ;; + target) + func_fatal_error "you must specify a target with '-o'" + ;; + *) + # Get the name of the library object. + test -z "$libobj" && { + func_basename "$srcfile" + libobj=$func_basename_result + } + ;; + esac + + # Recognize several different file suffixes. + # If the user specifies -o file.o, it is replaced with file.lo + case $libobj in + *.[cCFSifmso] | \ + *.ada | *.adb | *.ads | *.asm | \ + *.c++ | *.cc | *.ii | *.class | *.cpp | *.cxx | \ + *.[fF][09]? | *.for | *.java | *.go | *.obj | *.sx | *.cu | *.cup) + func_xform "$libobj" + libobj=$func_xform_result + ;; + esac + + case $libobj in + *.lo) func_lo2o "$libobj"; obj=$func_lo2o_result ;; + *) + func_fatal_error "cannot determine name of library object from '$libobj'" + ;; + esac + + func_infer_tag $base_compile + + for arg in $later; do + case $arg in + -shared) + test yes = "$build_libtool_libs" \ + || func_fatal_configuration "cannot build a shared library" + build_old_libs=no + continue + ;; + + -static) + build_libtool_libs=no + build_old_libs=yes + continue + ;; + + -prefer-pic) + pic_mode=yes + continue + ;; + + -prefer-non-pic) + pic_mode=no + continue + ;; + esac + done + + func_quote_for_eval "$libobj" + test "X$libobj" != "X$func_quote_for_eval_result" \ + && $ECHO "X$libobj" | $GREP '[]~#^*{};<>?"'"'"' &()|`$[]' \ + && func_warning "libobj name '$libobj' may not contain shell special characters." + func_dirname_and_basename "$obj" "/" "" + objname=$func_basename_result + xdir=$func_dirname_result + lobj=$xdir$objdir/$objname + + test -z "$base_compile" && \ + func_fatal_help "you must specify a compilation command" + + # Delete any leftover library objects. + if test yes = "$build_old_libs"; then + removelist="$obj $lobj $libobj ${libobj}T" + else + removelist="$lobj $libobj ${libobj}T" + fi + + # On Cygwin there's no "real" PIC flag so we must build both object types + case $host_os in + cygwin* | mingw* | pw32* | os2* | cegcc*) + pic_mode=default + ;; + esac + if test no = "$pic_mode" && test pass_all != "$deplibs_check_method"; then + # non-PIC code in shared libraries is not supported + pic_mode=default + fi + + # Calculate the filename of the output object if compiler does + # not support -o with -c + if test no = "$compiler_c_o"; then + output_obj=`$ECHO "$srcfile" | $SED 's%^.*/%%; s%\.[^.]*$%%'`.$objext + lockfile=$output_obj.lock + else + output_obj= + need_locks=no + lockfile= + fi + + # Lock this critical section if it is needed + # We use this script file to make the link, it avoids creating a new file + if test yes = "$need_locks"; then + until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do + func_echo "Waiting for $lockfile to be removed" + sleep 2 + done + elif test warn = "$need_locks"; then + if test -f "$lockfile"; then + $ECHO "\ +*** ERROR, $lockfile exists and contains: +`cat $lockfile 2>/dev/null` + +This indicates that another process is trying to use the same +temporary object file, and libtool could not work around it because +your compiler does not support '-c' and '-o' together. If you +repeat this compilation, it may succeed, by chance, but you had better +avoid parallel builds (make -j) in this platform, or get a better +compiler." + + $opt_dry_run || $RM $removelist + exit $EXIT_FAILURE + fi + func_append removelist " $output_obj" + $ECHO "$srcfile" > "$lockfile" + fi + + $opt_dry_run || $RM $removelist + func_append removelist " $lockfile" + trap '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE' 1 2 15 + + func_to_tool_file "$srcfile" func_convert_file_msys_to_w32 + srcfile=$func_to_tool_file_result + func_quote_for_eval "$srcfile" + qsrcfile=$func_quote_for_eval_result + + # Only build a PIC object if we are building libtool libraries. + if test yes = "$build_libtool_libs"; then + # Without this assignment, base_compile gets emptied. + fbsd_hideous_sh_bug=$base_compile + + if test no != "$pic_mode"; then + command="$base_compile $qsrcfile $pic_flag" + else + # Don't build PIC code + command="$base_compile $qsrcfile" + fi + + func_mkdir_p "$xdir$objdir" + + if test -z "$output_obj"; then + # Place PIC objects in $objdir + func_append command " -o $lobj" + fi + + func_show_eval_locale "$command" \ + 'test -n "$output_obj" && $RM $removelist; exit $EXIT_FAILURE' + + if test warn = "$need_locks" && + test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then + $ECHO "\ +*** ERROR, $lockfile contains: +`cat $lockfile 2>/dev/null` + +but it should contain: +$srcfile + +This indicates that another process is trying to use the same +temporary object file, and libtool could not work around it because +your compiler does not support '-c' and '-o' together. If you +repeat this compilation, it may succeed, by chance, but you had better +avoid parallel builds (make -j) in this platform, or get a better +compiler." + + $opt_dry_run || $RM $removelist + exit $EXIT_FAILURE + fi + + # Just move the object if needed, then go on to compile the next one + if test -n "$output_obj" && test "X$output_obj" != "X$lobj"; then + func_show_eval '$MV "$output_obj" "$lobj"' \ + 'error=$?; $opt_dry_run || $RM $removelist; exit $error' + fi + + # Allow error messages only from the first compilation. + if test yes = "$suppress_opt"; then + suppress_output=' >/dev/null 2>&1' + fi + fi + + # Only build a position-dependent object if we build old libraries. + if test yes = "$build_old_libs"; then + if test yes != "$pic_mode"; then + # Don't build PIC code + command="$base_compile $qsrcfile$pie_flag" + else + command="$base_compile $qsrcfile $pic_flag" + fi + if test yes = "$compiler_c_o"; then + func_append command " -o $obj" + fi + + # Suppress compiler output if we already did a PIC compilation. + func_append command "$suppress_output" + func_show_eval_locale "$command" \ + '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE' + + if test warn = "$need_locks" && + test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then + $ECHO "\ +*** ERROR, $lockfile contains: +`cat $lockfile 2>/dev/null` + +but it should contain: +$srcfile + +This indicates that another process is trying to use the same +temporary object file, and libtool could not work around it because +your compiler does not support '-c' and '-o' together. If you +repeat this compilation, it may succeed, by chance, but you had better +avoid parallel builds (make -j) in this platform, or get a better +compiler." + + $opt_dry_run || $RM $removelist + exit $EXIT_FAILURE + fi + + # Just move the object if needed + if test -n "$output_obj" && test "X$output_obj" != "X$obj"; then + func_show_eval '$MV "$output_obj" "$obj"' \ + 'error=$?; $opt_dry_run || $RM $removelist; exit $error' + fi + fi + + $opt_dry_run || { + func_write_libtool_object "$libobj" "$objdir/$objname" "$objname" + + # Unlock the critical section if it was locked + if test no != "$need_locks"; then + removelist=$lockfile + $RM "$lockfile" + fi + } + + exit $EXIT_SUCCESS +} + +$opt_help || { + test compile = "$opt_mode" && func_mode_compile ${1+"$@"} +} + +func_mode_help () +{ + # We need to display help for each of the modes. + case $opt_mode in + "") + # Generic help is extracted from the usage comments + # at the start of this file. + func_help + ;; + + clean) + $ECHO \ +"Usage: $progname [OPTION]... --mode=clean RM [RM-OPTION]... FILE... + +Remove files from the build directory. + +RM is the name of the program to use to delete files associated with each FILE +(typically '/bin/rm'). RM-OPTIONS are options (such as '-f') to be passed +to RM. + +If FILE is a libtool library, object or program, all the files associated +with it are deleted. Otherwise, only FILE itself is deleted using RM." + ;; + + compile) + $ECHO \ +"Usage: $progname [OPTION]... --mode=compile COMPILE-COMMAND... SOURCEFILE + +Compile a source file into a libtool library object. + +This mode accepts the following additional options: + + -o OUTPUT-FILE set the output file name to OUTPUT-FILE + -no-suppress do not suppress compiler output for multiple passes + -prefer-pic try to build PIC objects only + -prefer-non-pic try to build non-PIC objects only + -shared do not build a '.o' file suitable for static linking + -static only build a '.o' file suitable for static linking + -Wc,FLAG pass FLAG directly to the compiler + +COMPILE-COMMAND is a command to be used in creating a 'standard' object file +from the given SOURCEFILE. + +The output file name is determined by removing the directory component from +SOURCEFILE, then substituting the C source code suffix '.c' with the +library object suffix, '.lo'." + ;; + + execute) + $ECHO \ +"Usage: $progname [OPTION]... --mode=execute COMMAND [ARGS]... + +Automatically set library path, then run a program. + +This mode accepts the following additional options: + + -dlopen FILE add the directory containing FILE to the library path + +This mode sets the library path environment variable according to '-dlopen' +flags. + +If any of the ARGS are libtool executable wrappers, then they are translated +into their corresponding uninstalled binary, and any of their required library +directories are added to the library path. + +Then, COMMAND is executed, with ARGS as arguments." + ;; + + finish) + $ECHO \ +"Usage: $progname [OPTION]... --mode=finish [LIBDIR]... + +Complete the installation of libtool libraries. + +Each LIBDIR is a directory that contains libtool libraries. + +The commands that this mode executes may require superuser privileges. Use +the '--dry-run' option if you just want to see what would be executed." + ;; + + install) + $ECHO \ +"Usage: $progname [OPTION]... --mode=install INSTALL-COMMAND... + +Install executables or libraries. + +INSTALL-COMMAND is the installation command. The first component should be +either the 'install' or 'cp' program. + +The following components of INSTALL-COMMAND are treated specially: + + -inst-prefix-dir PREFIX-DIR Use PREFIX-DIR as a staging area for installation + +The rest of the components are interpreted as arguments to that command (only +BSD-compatible install options are recognized)." + ;; + + link) + $ECHO \ +"Usage: $progname [OPTION]... --mode=link LINK-COMMAND... + +Link object files or libraries together to form another library, or to +create an executable program. + +LINK-COMMAND is a command using the C compiler that you would use to create +a program from several object files. + +The following components of LINK-COMMAND are treated specially: + + -all-static do not do any dynamic linking at all + -avoid-version do not add a version suffix if possible + -bindir BINDIR specify path to binaries directory (for systems where + libraries must be found in the PATH setting at runtime) + -dlopen FILE '-dlpreopen' FILE if it cannot be dlopened at runtime + -dlpreopen FILE link in FILE and add its symbols to lt_preloaded_symbols + -export-dynamic allow symbols from OUTPUT-FILE to be resolved with dlsym(3) + -export-symbols SYMFILE + try to export only the symbols listed in SYMFILE + -export-symbols-regex REGEX + try to export only the symbols matching REGEX + -LLIBDIR search LIBDIR for required installed libraries + -lNAME OUTPUT-FILE requires the installed library libNAME + -module build a library that can dlopened + -no-fast-install disable the fast-install mode + -no-install link a not-installable executable + -no-undefined declare that a library does not refer to external symbols + -o OUTPUT-FILE create OUTPUT-FILE from the specified objects + -objectlist FILE use a list of object files found in FILE to specify objects + -os2dllname NAME force a short DLL name on OS/2 (no effect on other OSes) + -precious-files-regex REGEX + don't remove output files matching REGEX + -release RELEASE specify package release information + -rpath LIBDIR the created library will eventually be installed in LIBDIR + -R[ ]LIBDIR add LIBDIR to the runtime path of programs and libraries + -shared only do dynamic linking of libtool libraries + -shrext SUFFIX override the standard shared library file extension + -static do not do any dynamic linking of uninstalled libtool libraries + -static-libtool-libs + do not do any dynamic linking of libtool libraries + -version-info CURRENT[:REVISION[:AGE]] + specify library version info [each variable defaults to 0] + -weak LIBNAME declare that the target provides the LIBNAME interface + -Wc,FLAG + -Xcompiler FLAG pass linker-specific FLAG directly to the compiler + -Wl,FLAG + -Xlinker FLAG pass linker-specific FLAG directly to the linker + -XCClinker FLAG pass link-specific FLAG to the compiler driver (CC) + +All other options (arguments beginning with '-') are ignored. + +Every other argument is treated as a filename. Files ending in '.la' are +treated as uninstalled libtool libraries, other files are standard or library +object files. + +If the OUTPUT-FILE ends in '.la', then a libtool library is created, +only library objects ('.lo' files) may be specified, and '-rpath' is +required, except when creating a convenience library. + +If OUTPUT-FILE ends in '.a' or '.lib', then a standard library is created +using 'ar' and 'ranlib', or on Windows using 'lib'. + +If OUTPUT-FILE ends in '.lo' or '.$objext', then a reloadable object file +is created, otherwise an executable program is created." + ;; + + uninstall) + $ECHO \ +"Usage: $progname [OPTION]... --mode=uninstall RM [RM-OPTION]... FILE... + +Remove libraries from an installation directory. + +RM is the name of the program to use to delete files associated with each FILE +(typically '/bin/rm'). RM-OPTIONS are options (such as '-f') to be passed +to RM. + +If FILE is a libtool library, all the files associated with it are deleted. +Otherwise, only FILE itself is deleted using RM." + ;; + + *) + func_fatal_help "invalid operation mode '$opt_mode'" + ;; + esac + + echo + $ECHO "Try '$progname --help' for more information about other modes." +} + +# Now that we've collected a possible --mode arg, show help if necessary +if $opt_help; then + if test : = "$opt_help"; then + func_mode_help + else + { + func_help noexit + for opt_mode in compile link execute install finish uninstall clean; do + func_mode_help + done + } | $SED -n '1p; 2,$s/^Usage:/ or: /p' + { + func_help noexit + for opt_mode in compile link execute install finish uninstall clean; do + echo + func_mode_help + done + } | + $SED '1d + /^When reporting/,/^Report/{ + H + d + } + $x + /information about other modes/d + /more detailed .*MODE/d + s/^Usage:.*--mode=\([^ ]*\) .*/Description of \1 mode:/' + fi + exit $? +fi + + +# func_mode_execute arg... +func_mode_execute () +{ + $debug_cmd + + # The first argument is the command name. + cmd=$nonopt + test -z "$cmd" && \ + func_fatal_help "you must specify a COMMAND" + + # Handle -dlopen flags immediately. + for file in $opt_dlopen; do + test -f "$file" \ + || func_fatal_help "'$file' is not a file" + + dir= + case $file in + *.la) + func_resolve_sysroot "$file" + file=$func_resolve_sysroot_result + + # Check to see that this really is a libtool archive. + func_lalib_unsafe_p "$file" \ + || func_fatal_help "'$lib' is not a valid libtool archive" + + # Read the libtool library. + dlname= + library_names= + func_source "$file" + + # Skip this library if it cannot be dlopened. + if test -z "$dlname"; then + # Warn if it was a shared library. + test -n "$library_names" && \ + func_warning "'$file' was not linked with '-export-dynamic'" + continue + fi + + func_dirname "$file" "" "." + dir=$func_dirname_result + + if test -f "$dir/$objdir/$dlname"; then + func_append dir "/$objdir" + else + if test ! -f "$dir/$dlname"; then + func_fatal_error "cannot find '$dlname' in '$dir' or '$dir/$objdir'" + fi + fi + ;; + + *.lo) + # Just add the directory containing the .lo file. + func_dirname "$file" "" "." + dir=$func_dirname_result + ;; + + *) + func_warning "'-dlopen' is ignored for non-libtool libraries and objects" + continue + ;; + esac + + # Get the absolute pathname. + absdir=`cd "$dir" && pwd` + test -n "$absdir" && dir=$absdir + + # Now add the directory to shlibpath_var. + if eval "test -z \"\$$shlibpath_var\""; then + eval "$shlibpath_var=\"\$dir\"" + else + eval "$shlibpath_var=\"\$dir:\$$shlibpath_var\"" + fi + done + + # This variable tells wrapper scripts just to set shlibpath_var + # rather than running their programs. + libtool_execute_magic=$magic + + # Check if any of the arguments is a wrapper script. + args= + for file + do + case $file in + -* | *.la | *.lo ) ;; + *) + # Do a test to see if this is really a libtool program. + if func_ltwrapper_script_p "$file"; then + func_source "$file" + # Transform arg to wrapped name. + file=$progdir/$program + elif func_ltwrapper_executable_p "$file"; then + func_ltwrapper_scriptname "$file" + func_source "$func_ltwrapper_scriptname_result" + # Transform arg to wrapped name. + file=$progdir/$program + fi + ;; + esac + # Quote arguments (to preserve shell metacharacters). + func_append_quoted args "$file" + done + + if $opt_dry_run; then + # Display what would be done. + if test -n "$shlibpath_var"; then + eval "\$ECHO \"\$shlibpath_var=\$$shlibpath_var\"" + echo "export $shlibpath_var" + fi + $ECHO "$cmd$args" + exit $EXIT_SUCCESS + else + if test -n "$shlibpath_var"; then + # Export the shlibpath_var. + eval "export $shlibpath_var" + fi + + # Restore saved environment variables + for lt_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES + do + eval "if test \"\${save_$lt_var+set}\" = set; then + $lt_var=\$save_$lt_var; export $lt_var + else + $lt_unset $lt_var + fi" + done + + # Now prepare to actually exec the command. + exec_cmd=\$cmd$args + fi +} + +test execute = "$opt_mode" && func_mode_execute ${1+"$@"} + + +# func_mode_finish arg... +func_mode_finish () +{ + $debug_cmd + + libs= + libdirs= + admincmds= + + for opt in "$nonopt" ${1+"$@"} + do + if test -d "$opt"; then + func_append libdirs " $opt" + + elif test -f "$opt"; then + if func_lalib_unsafe_p "$opt"; then + func_append libs " $opt" + else + func_warning "'$opt' is not a valid libtool archive" + fi + + else + func_fatal_error "invalid argument '$opt'" + fi + done + + if test -n "$libs"; then + if test -n "$lt_sysroot"; then + sysroot_regex=`$ECHO "$lt_sysroot" | $SED "$sed_make_literal_regex"` + sysroot_cmd="s/\([ ']\)$sysroot_regex/\1/g;" + else + sysroot_cmd= + fi + + # Remove sysroot references + if $opt_dry_run; then + for lib in $libs; do + echo "removing references to $lt_sysroot and '=' prefixes from $lib" + done + else + tmpdir=`func_mktempdir` + for lib in $libs; do + $SED -e "$sysroot_cmd s/\([ ']-[LR]\)=/\1/g; s/\([ ']\)=/\1/g" $lib \ + > $tmpdir/tmp-la + mv -f $tmpdir/tmp-la $lib + done + ${RM}r "$tmpdir" + fi + fi + + if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then + for libdir in $libdirs; do + if test -n "$finish_cmds"; then + # Do each command in the finish commands. + func_execute_cmds "$finish_cmds" 'admincmds="$admincmds +'"$cmd"'"' + fi + if test -n "$finish_eval"; then + # Do the single finish_eval. + eval cmds=\"$finish_eval\" + $opt_dry_run || eval "$cmds" || func_append admincmds " + $cmds" + fi + done + fi + + # Exit here if they wanted silent mode. + $opt_quiet && exit $EXIT_SUCCESS + + if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then + echo "----------------------------------------------------------------------" + echo "Libraries have been installed in:" + for libdir in $libdirs; do + $ECHO " $libdir" + done + echo + echo "If you ever happen to want to link against installed libraries" + echo "in a given directory, LIBDIR, you must either use libtool, and" + echo "specify the full pathname of the library, or use the '-LLIBDIR'" + echo "flag during linking and do at least one of the following:" + if test -n "$shlibpath_var"; then + echo " - add LIBDIR to the '$shlibpath_var' environment variable" + echo " during execution" + fi + if test -n "$runpath_var"; then + echo " - add LIBDIR to the '$runpath_var' environment variable" + echo " during linking" + fi + if test -n "$hardcode_libdir_flag_spec"; then + libdir=LIBDIR + eval flag=\"$hardcode_libdir_flag_spec\" + + $ECHO " - use the '$flag' linker flag" + fi + if test -n "$admincmds"; then + $ECHO " - have your system administrator run these commands:$admincmds" + fi + if test -f /etc/ld.so.conf; then + echo " - have your system administrator add LIBDIR to '/etc/ld.so.conf'" + fi + echo + + echo "See any operating system documentation about shared libraries for" + case $host in + solaris2.[6789]|solaris2.1[0-9]) + echo "more information, such as the ld(1), crle(1) and ld.so(8) manual" + echo "pages." + ;; + *) + echo "more information, such as the ld(1) and ld.so(8) manual pages." + ;; + esac + echo "----------------------------------------------------------------------" + fi + exit $EXIT_SUCCESS +} + +test finish = "$opt_mode" && func_mode_finish ${1+"$@"} + + +# func_mode_install arg... +func_mode_install () +{ + $debug_cmd + + # There may be an optional sh(1) argument at the beginning of + # install_prog (especially on Windows NT). + if test "$SHELL" = "$nonopt" || test /bin/sh = "$nonopt" || + # Allow the use of GNU shtool's install command. + case $nonopt in *shtool*) :;; *) false;; esac + then + # Aesthetically quote it. + func_quote_for_eval "$nonopt" + install_prog="$func_quote_for_eval_result " + arg=$1 + shift + else + install_prog= + arg=$nonopt + fi + + # The real first argument should be the name of the installation program. + # Aesthetically quote it. + func_quote_for_eval "$arg" + func_append install_prog "$func_quote_for_eval_result" + install_shared_prog=$install_prog + case " $install_prog " in + *[\\\ /]cp\ *) install_cp=: ;; + *) install_cp=false ;; + esac + + # We need to accept at least all the BSD install flags. + dest= + files= + opts= + prev= + install_type= + isdir=false + stripme= + no_mode=: + for arg + do + arg2= + if test -n "$dest"; then + func_append files " $dest" + dest=$arg + continue + fi + + case $arg in + -d) isdir=: ;; + -f) + if $install_cp; then :; else + prev=$arg + fi + ;; + -g | -m | -o) + prev=$arg + ;; + -s) + stripme=" -s" + continue + ;; + -*) + ;; + *) + # If the previous option needed an argument, then skip it. + if test -n "$prev"; then + if test X-m = "X$prev" && test -n "$install_override_mode"; then + arg2=$install_override_mode + no_mode=false + fi + prev= + else + dest=$arg + continue + fi + ;; + esac + + # Aesthetically quote the argument. + func_quote_for_eval "$arg" + func_append install_prog " $func_quote_for_eval_result" + if test -n "$arg2"; then + func_quote_for_eval "$arg2" + fi + func_append install_shared_prog " $func_quote_for_eval_result" + done + + test -z "$install_prog" && \ + func_fatal_help "you must specify an install program" + + test -n "$prev" && \ + func_fatal_help "the '$prev' option requires an argument" + + if test -n "$install_override_mode" && $no_mode; then + if $install_cp; then :; else + func_quote_for_eval "$install_override_mode" + func_append install_shared_prog " -m $func_quote_for_eval_result" + fi + fi + + if test -z "$files"; then + if test -z "$dest"; then + func_fatal_help "no file or destination specified" + else + func_fatal_help "you must specify a destination" + fi + fi + + # Strip any trailing slash from the destination. + func_stripname '' '/' "$dest" + dest=$func_stripname_result + + # Check to see that the destination is a directory. + test -d "$dest" && isdir=: + if $isdir; then + destdir=$dest + destname= + else + func_dirname_and_basename "$dest" "" "." + destdir=$func_dirname_result + destname=$func_basename_result + + # Not a directory, so check to see that there is only one file specified. + set dummy $files; shift + test "$#" -gt 1 && \ + func_fatal_help "'$dest' is not a directory" + fi + case $destdir in + [\\/]* | [A-Za-z]:[\\/]*) ;; + *) + for file in $files; do + case $file in + *.lo) ;; + *) + func_fatal_help "'$destdir' must be an absolute directory name" + ;; + esac + done + ;; + esac + + # This variable tells wrapper scripts just to set variables rather + # than running their programs. + libtool_install_magic=$magic + + staticlibs= + future_libdirs= + current_libdirs= + for file in $files; do + + # Do each installation. + case $file in + *.$libext) + # Do the static libraries later. + func_append staticlibs " $file" + ;; + + *.la) + func_resolve_sysroot "$file" + file=$func_resolve_sysroot_result + + # Check to see that this really is a libtool archive. + func_lalib_unsafe_p "$file" \ + || func_fatal_help "'$file' is not a valid libtool archive" + + library_names= + old_library= + relink_command= + func_source "$file" + + # Add the libdir to current_libdirs if it is the destination. + if test "X$destdir" = "X$libdir"; then + case "$current_libdirs " in + *" $libdir "*) ;; + *) func_append current_libdirs " $libdir" ;; + esac + else + # Note the libdir as a future libdir. + case "$future_libdirs " in + *" $libdir "*) ;; + *) func_append future_libdirs " $libdir" ;; + esac + fi + + func_dirname "$file" "/" "" + dir=$func_dirname_result + func_append dir "$objdir" + + if test -n "$relink_command"; then + # Determine the prefix the user has applied to our future dir. + inst_prefix_dir=`$ECHO "$destdir" | $SED -e "s%$libdir\$%%"` + + # Don't allow the user to place us outside of our expected + # location b/c this prevents finding dependent libraries that + # are installed to the same prefix. + # At present, this check doesn't affect windows .dll's that + # are installed into $libdir/../bin (currently, that works fine) + # but it's something to keep an eye on. + test "$inst_prefix_dir" = "$destdir" && \ + func_fatal_error "error: cannot install '$file' to a directory not ending in $libdir" + + if test -n "$inst_prefix_dir"; then + # Stick the inst_prefix_dir data into the link command. + relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%-inst-prefix-dir $inst_prefix_dir%"` + else + relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%%"` + fi + + func_warning "relinking '$file'" + func_show_eval "$relink_command" \ + 'func_fatal_error "error: relink '\''$file'\'' with the above command before installing it"' + fi + + # See the names of the shared library. + set dummy $library_names; shift + if test -n "$1"; then + realname=$1 + shift + + srcname=$realname + test -n "$relink_command" && srcname=${realname}T + + # Install the shared library and build the symlinks. + func_show_eval "$install_shared_prog $dir/$srcname $destdir/$realname" \ + 'exit $?' + tstripme=$stripme + case $host_os in + cygwin* | mingw* | pw32* | cegcc*) + case $realname in + *.dll.a) + tstripme= + ;; + esac + ;; + os2*) + case $realname in + *_dll.a) + tstripme= + ;; + esac + ;; + esac + if test -n "$tstripme" && test -n "$striplib"; then + func_show_eval "$striplib $destdir/$realname" 'exit $?' + fi + + if test "$#" -gt 0; then + # Delete the old symlinks, and create new ones. + # Try 'ln -sf' first, because the 'ln' binary might depend on + # the symlink we replace! Solaris /bin/ln does not understand -f, + # so we also need to try rm && ln -s. + for linkname + do + test "$linkname" != "$realname" \ + && func_show_eval "(cd $destdir && { $LN_S -f $realname $linkname || { $RM $linkname && $LN_S $realname $linkname; }; })" + done + fi + + # Do each command in the postinstall commands. + lib=$destdir/$realname + func_execute_cmds "$postinstall_cmds" 'exit $?' + fi + + # Install the pseudo-library for information purposes. + func_basename "$file" + name=$func_basename_result + instname=$dir/${name}i + func_show_eval "$install_prog $instname $destdir/$name" 'exit $?' + + # Maybe install the static library, too. + test -n "$old_library" && func_append staticlibs " $dir/$old_library" + ;; + + *.lo) + # Install (i.e. copy) a libtool object. + + # Figure out destination file name, if it wasn't already specified. + if test -n "$destname"; then + destfile=$destdir/$destname + else + func_basename "$file" + destfile=$func_basename_result + destfile=$destdir/$destfile + fi + + # Deduce the name of the destination old-style object file. + case $destfile in + *.lo) + func_lo2o "$destfile" + staticdest=$func_lo2o_result + ;; + *.$objext) + staticdest=$destfile + destfile= + ;; + *) + func_fatal_help "cannot copy a libtool object to '$destfile'" + ;; + esac + + # Install the libtool object if requested. + test -n "$destfile" && \ + func_show_eval "$install_prog $file $destfile" 'exit $?' + + # Install the old object if enabled. + if test yes = "$build_old_libs"; then + # Deduce the name of the old-style object file. + func_lo2o "$file" + staticobj=$func_lo2o_result + func_show_eval "$install_prog \$staticobj \$staticdest" 'exit $?' + fi + exit $EXIT_SUCCESS + ;; + + *) + # Figure out destination file name, if it wasn't already specified. + if test -n "$destname"; then + destfile=$destdir/$destname + else + func_basename "$file" + destfile=$func_basename_result + destfile=$destdir/$destfile + fi + + # If the file is missing, and there is a .exe on the end, strip it + # because it is most likely a libtool script we actually want to + # install + stripped_ext= + case $file in + *.exe) + if test ! -f "$file"; then + func_stripname '' '.exe' "$file" + file=$func_stripname_result + stripped_ext=.exe + fi + ;; + esac + + # Do a test to see if this is really a libtool program. + case $host in + *cygwin* | *mingw*) + if func_ltwrapper_executable_p "$file"; then + func_ltwrapper_scriptname "$file" + wrapper=$func_ltwrapper_scriptname_result + else + func_stripname '' '.exe' "$file" + wrapper=$func_stripname_result + fi + ;; + *) + wrapper=$file + ;; + esac + if func_ltwrapper_script_p "$wrapper"; then + notinst_deplibs= + relink_command= + + func_source "$wrapper" + + # Check the variables that should have been set. + test -z "$generated_by_libtool_version" && \ + func_fatal_error "invalid libtool wrapper script '$wrapper'" + + finalize=: + for lib in $notinst_deplibs; do + # Check to see that each library is installed. + libdir= + if test -f "$lib"; then + func_source "$lib" + fi + libfile=$libdir/`$ECHO "$lib" | $SED 's%^.*/%%g'` + if test -n "$libdir" && test ! -f "$libfile"; then + func_warning "'$lib' has not been installed in '$libdir'" + finalize=false + fi + done + + relink_command= + func_source "$wrapper" + + outputname= + if test no = "$fast_install" && test -n "$relink_command"; then + $opt_dry_run || { + if $finalize; then + tmpdir=`func_mktempdir` + func_basename "$file$stripped_ext" + file=$func_basename_result + outputname=$tmpdir/$file + # Replace the output file specification. + relink_command=`$ECHO "$relink_command" | $SED 's%@OUTPUT@%'"$outputname"'%g'` + + $opt_quiet || { + func_quote_for_expand "$relink_command" + eval "func_echo $func_quote_for_expand_result" + } + if eval "$relink_command"; then : + else + func_error "error: relink '$file' with the above command before installing it" + $opt_dry_run || ${RM}r "$tmpdir" + continue + fi + file=$outputname + else + func_warning "cannot relink '$file'" + fi + } + else + # Install the binary that we compiled earlier. + file=`$ECHO "$file$stripped_ext" | $SED "s%\([^/]*\)$%$objdir/\1%"` + fi + fi + + # remove .exe since cygwin /usr/bin/install will append another + # one anyway + case $install_prog,$host in + */usr/bin/install*,*cygwin*) + case $file:$destfile in + *.exe:*.exe) + # this is ok + ;; + *.exe:*) + destfile=$destfile.exe + ;; + *:*.exe) + func_stripname '' '.exe' "$destfile" + destfile=$func_stripname_result + ;; + esac + ;; + esac + func_show_eval "$install_prog\$stripme \$file \$destfile" 'exit $?' + $opt_dry_run || if test -n "$outputname"; then + ${RM}r "$tmpdir" + fi + ;; + esac + done + + for file in $staticlibs; do + func_basename "$file" + name=$func_basename_result + + # Set up the ranlib parameters. + oldlib=$destdir/$name + func_to_tool_file "$oldlib" func_convert_file_msys_to_w32 + tool_oldlib=$func_to_tool_file_result + + func_show_eval "$install_prog \$file \$oldlib" 'exit $?' + + if test -n "$stripme" && test -n "$old_striplib"; then + func_show_eval "$old_striplib $tool_oldlib" 'exit $?' + fi + + # Do each command in the postinstall commands. + func_execute_cmds "$old_postinstall_cmds" 'exit $?' + done + + test -n "$future_libdirs" && \ + func_warning "remember to run '$progname --finish$future_libdirs'" + + if test -n "$current_libdirs"; then + # Maybe just do a dry run. + $opt_dry_run && current_libdirs=" -n$current_libdirs" + exec_cmd='$SHELL "$progpath" $preserve_args --finish$current_libdirs' + else + exit $EXIT_SUCCESS + fi +} + +test install = "$opt_mode" && func_mode_install ${1+"$@"} + + +# func_generate_dlsyms outputname originator pic_p +# Extract symbols from dlprefiles and create ${outputname}S.o with +# a dlpreopen symbol table. +func_generate_dlsyms () +{ + $debug_cmd + + my_outputname=$1 + my_originator=$2 + my_pic_p=${3-false} + my_prefix=`$ECHO "$my_originator" | $SED 's%[^a-zA-Z0-9]%_%g'` + my_dlsyms= + + if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then + if test -n "$NM" && test -n "$global_symbol_pipe"; then + my_dlsyms=${my_outputname}S.c + else + func_error "not configured to extract global symbols from dlpreopened files" + fi + fi + + if test -n "$my_dlsyms"; then + case $my_dlsyms in + "") ;; + *.c) + # Discover the nlist of each of the dlfiles. + nlist=$output_objdir/$my_outputname.nm + + func_show_eval "$RM $nlist ${nlist}S ${nlist}T" + + # Parse the name list into a source file. + func_verbose "creating $output_objdir/$my_dlsyms" + + $opt_dry_run || $ECHO > "$output_objdir/$my_dlsyms" "\ +/* $my_dlsyms - symbol resolution table for '$my_outputname' dlsym emulation. */ +/* Generated by $PROGRAM (GNU $PACKAGE) $VERSION */ + +#ifdef __cplusplus +extern \"C\" { +#endif + +#if defined __GNUC__ && (((__GNUC__ == 4) && (__GNUC_MINOR__ >= 4)) || (__GNUC__ > 4)) +#pragma GCC diagnostic ignored \"-Wstrict-prototypes\" +#endif + +/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */ +#if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE +/* DATA imports from DLLs on WIN32 can't be const, because runtime + relocations are performed -- see ld's documentation on pseudo-relocs. */ +# define LT_DLSYM_CONST +#elif defined __osf__ +/* This system does not cope well with relocations in const data. */ +# define LT_DLSYM_CONST +#else +# define LT_DLSYM_CONST const +#endif + +#define STREQ(s1, s2) (strcmp ((s1), (s2)) == 0) + +/* External symbol declarations for the compiler. */\ +" + + if test yes = "$dlself"; then + func_verbose "generating symbol list for '$output'" + + $opt_dry_run || echo ': @PROGRAM@ ' > "$nlist" + + # Add our own program objects to the symbol list. + progfiles=`$ECHO "$objs$old_deplibs" | $SP2NL | $SED "$lo2o" | $NL2SP` + for progfile in $progfiles; do + func_to_tool_file "$progfile" func_convert_file_msys_to_w32 + func_verbose "extracting global C symbols from '$func_to_tool_file_result'" + $opt_dry_run || eval "$NM $func_to_tool_file_result | $global_symbol_pipe >> '$nlist'" + done + + if test -n "$exclude_expsyms"; then + $opt_dry_run || { + eval '$EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T' + eval '$MV "$nlist"T "$nlist"' + } + fi + + if test -n "$export_symbols_regex"; then + $opt_dry_run || { + eval '$EGREP -e "$export_symbols_regex" "$nlist" > "$nlist"T' + eval '$MV "$nlist"T "$nlist"' + } + fi + + # Prepare the list of exported symbols + if test -z "$export_symbols"; then + export_symbols=$output_objdir/$outputname.exp + $opt_dry_run || { + $RM $export_symbols + eval "$SED -n -e '/^: @PROGRAM@ $/d' -e 's/^.* \(.*\)$/\1/p' "'< "$nlist" > "$export_symbols"' + case $host in + *cygwin* | *mingw* | *cegcc* ) + eval "echo EXPORTS "'> "$output_objdir/$outputname.def"' + eval 'cat "$export_symbols" >> "$output_objdir/$outputname.def"' + ;; + esac + } + else + $opt_dry_run || { + eval "$SED -e 's/\([].[*^$]\)/\\\\\1/g' -e 's/^/ /' -e 's/$/$/'"' < "$export_symbols" > "$output_objdir/$outputname.exp"' + eval '$GREP -f "$output_objdir/$outputname.exp" < "$nlist" > "$nlist"T' + eval '$MV "$nlist"T "$nlist"' + case $host in + *cygwin* | *mingw* | *cegcc* ) + eval "echo EXPORTS "'> "$output_objdir/$outputname.def"' + eval 'cat "$nlist" >> "$output_objdir/$outputname.def"' + ;; + esac + } + fi + fi + + for dlprefile in $dlprefiles; do + func_verbose "extracting global C symbols from '$dlprefile'" + func_basename "$dlprefile" + name=$func_basename_result + case $host in + *cygwin* | *mingw* | *cegcc* ) + # if an import library, we need to obtain dlname + if func_win32_import_lib_p "$dlprefile"; then + func_tr_sh "$dlprefile" + eval "curr_lafile=\$libfile_$func_tr_sh_result" + dlprefile_dlbasename= + if test -n "$curr_lafile" && func_lalib_p "$curr_lafile"; then + # Use subshell, to avoid clobbering current variable values + dlprefile_dlname=`source "$curr_lafile" && echo "$dlname"` + if test -n "$dlprefile_dlname"; then + func_basename "$dlprefile_dlname" + dlprefile_dlbasename=$func_basename_result + else + # no lafile. user explicitly requested -dlpreopen . + $sharedlib_from_linklib_cmd "$dlprefile" + dlprefile_dlbasename=$sharedlib_from_linklib_result + fi + fi + $opt_dry_run || { + if test -n "$dlprefile_dlbasename"; then + eval '$ECHO ": $dlprefile_dlbasename" >> "$nlist"' + else + func_warning "Could not compute DLL name from $name" + eval '$ECHO ": $name " >> "$nlist"' + fi + func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32 + eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe | + $SED -e '/I __imp/d' -e 's/I __nm_/D /;s/_nm__//' >> '$nlist'" + } + else # not an import lib + $opt_dry_run || { + eval '$ECHO ": $name " >> "$nlist"' + func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32 + eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'" + } + fi + ;; + *) + $opt_dry_run || { + eval '$ECHO ": $name " >> "$nlist"' + func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32 + eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'" + } + ;; + esac + done + + $opt_dry_run || { + # Make sure we have at least an empty file. + test -f "$nlist" || : > "$nlist" + + if test -n "$exclude_expsyms"; then + $EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T + $MV "$nlist"T "$nlist" + fi + + # Try sorting and uniquifying the output. + if $GREP -v "^: " < "$nlist" | + if sort -k 3 /dev/null 2>&1; then + sort -k 3 + else + sort +2 + fi | + uniq > "$nlist"S; then + : + else + $GREP -v "^: " < "$nlist" > "$nlist"S + fi + + if test -f "$nlist"S; then + eval "$global_symbol_to_cdecl"' < "$nlist"S >> "$output_objdir/$my_dlsyms"' + else + echo '/* NONE */' >> "$output_objdir/$my_dlsyms" + fi + + func_show_eval '$RM "${nlist}I"' + if test -n "$global_symbol_to_import"; then + eval "$global_symbol_to_import"' < "$nlist"S > "$nlist"I' + fi + + echo >> "$output_objdir/$my_dlsyms" "\ + +/* The mapping between symbol names and symbols. */ +typedef struct { + const char *name; + void *address; +} lt_dlsymlist; +extern LT_DLSYM_CONST lt_dlsymlist +lt_${my_prefix}_LTX_preloaded_symbols[];\ +" + + if test -s "$nlist"I; then + echo >> "$output_objdir/$my_dlsyms" "\ +static void lt_syminit(void) +{ + LT_DLSYM_CONST lt_dlsymlist *symbol = lt_${my_prefix}_LTX_preloaded_symbols; + for (; symbol->name; ++symbol) + {" + $SED 's/.*/ if (STREQ (symbol->name, \"&\")) symbol->address = (void *) \&&;/' < "$nlist"I >> "$output_objdir/$my_dlsyms" + echo >> "$output_objdir/$my_dlsyms" "\ + } +}" + fi + echo >> "$output_objdir/$my_dlsyms" "\ +LT_DLSYM_CONST lt_dlsymlist +lt_${my_prefix}_LTX_preloaded_symbols[] = +{ {\"$my_originator\", (void *) 0}," + + if test -s "$nlist"I; then + echo >> "$output_objdir/$my_dlsyms" "\ + {\"@INIT@\", (void *) <_syminit}," + fi + + case $need_lib_prefix in + no) + eval "$global_symbol_to_c_name_address" < "$nlist" >> "$output_objdir/$my_dlsyms" + ;; + *) + eval "$global_symbol_to_c_name_address_lib_prefix" < "$nlist" >> "$output_objdir/$my_dlsyms" + ;; + esac + echo >> "$output_objdir/$my_dlsyms" "\ + {0, (void *) 0} +}; + +/* This works around a problem in FreeBSD linker */ +#ifdef FREEBSD_WORKAROUND +static const void *lt_preloaded_setup() { + return lt_${my_prefix}_LTX_preloaded_symbols; +} +#endif + +#ifdef __cplusplus +} +#endif\ +" + } # !$opt_dry_run + + pic_flag_for_symtable= + case "$compile_command " in + *" -static "*) ;; + *) + case $host in + # compiling the symbol table file with pic_flag works around + # a FreeBSD bug that causes programs to crash when -lm is + # linked before any other PIC object. But we must not use + # pic_flag when linking with -static. The problem exists in + # FreeBSD 2.2.6 and is fixed in FreeBSD 3.1. + *-*-freebsd2.*|*-*-freebsd3.0*|*-*-freebsdelf3.0*) + pic_flag_for_symtable=" $pic_flag -DFREEBSD_WORKAROUND" ;; + *-*-hpux*) + pic_flag_for_symtable=" $pic_flag" ;; + *) + $my_pic_p && pic_flag_for_symtable=" $pic_flag" + ;; + esac + ;; + esac + symtab_cflags= + for arg in $LTCFLAGS; do + case $arg in + -pie | -fpie | -fPIE) ;; + *) func_append symtab_cflags " $arg" ;; + esac + done + + # Now compile the dynamic symbol file. + func_show_eval '(cd $output_objdir && $LTCC$symtab_cflags -c$no_builtin_flag$pic_flag_for_symtable "$my_dlsyms")' 'exit $?' + + # Clean up the generated files. + func_show_eval '$RM "$output_objdir/$my_dlsyms" "$nlist" "${nlist}S" "${nlist}T" "${nlist}I"' + + # Transform the symbol file into the correct name. + symfileobj=$output_objdir/${my_outputname}S.$objext + case $host in + *cygwin* | *mingw* | *cegcc* ) + if test -f "$output_objdir/$my_outputname.def"; then + compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"` + finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"` + else + compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"` + finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"` + fi + ;; + *) + compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"` + finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"` + ;; + esac + ;; + *) + func_fatal_error "unknown suffix for '$my_dlsyms'" + ;; + esac + else + # We keep going just in case the user didn't refer to + # lt_preloaded_symbols. The linker will fail if global_symbol_pipe + # really was required. + + # Nullify the symbol file. + compile_command=`$ECHO "$compile_command" | $SED "s% @SYMFILE@%%"` + finalize_command=`$ECHO "$finalize_command" | $SED "s% @SYMFILE@%%"` + fi +} + +# func_cygming_gnu_implib_p ARG +# This predicate returns with zero status (TRUE) if +# ARG is a GNU/binutils-style import library. Returns +# with nonzero status (FALSE) otherwise. +func_cygming_gnu_implib_p () +{ + $debug_cmd + + func_to_tool_file "$1" func_convert_file_msys_to_w32 + func_cygming_gnu_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $EGREP ' (_head_[A-Za-z0-9_]+_[ad]l*|[A-Za-z0-9_]+_[ad]l*_iname)$'` + test -n "$func_cygming_gnu_implib_tmp" +} + +# func_cygming_ms_implib_p ARG +# This predicate returns with zero status (TRUE) if +# ARG is an MS-style import library. Returns +# with nonzero status (FALSE) otherwise. +func_cygming_ms_implib_p () +{ + $debug_cmd + + func_to_tool_file "$1" func_convert_file_msys_to_w32 + func_cygming_ms_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $GREP '_NULL_IMPORT_DESCRIPTOR'` + test -n "$func_cygming_ms_implib_tmp" +} + +# func_win32_libid arg +# return the library type of file 'arg' +# +# Need a lot of goo to handle *both* DLLs and import libs +# Has to be a shell function in order to 'eat' the argument +# that is supplied when $file_magic_command is called. +# Despite the name, also deal with 64 bit binaries. +func_win32_libid () +{ + $debug_cmd + + win32_libid_type=unknown + win32_fileres=`file -L $1 2>/dev/null` + case $win32_fileres in + *ar\ archive\ import\ library*) # definitely import + win32_libid_type="x86 archive import" + ;; + *ar\ archive*) # could be an import, or static + # Keep the egrep pattern in sync with the one in _LT_CHECK_MAGIC_METHOD. + if eval $OBJDUMP -f $1 | $SED -e '10q' 2>/dev/null | + $EGREP 'file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)' >/dev/null; then + case $nm_interface in + "MS dumpbin") + if func_cygming_ms_implib_p "$1" || + func_cygming_gnu_implib_p "$1" + then + win32_nmres=import + else + win32_nmres= + fi + ;; + *) + func_to_tool_file "$1" func_convert_file_msys_to_w32 + win32_nmres=`eval $NM -f posix -A \"$func_to_tool_file_result\" | + $SED -n -e ' + 1,100{ + / I /{ + s|.*|import| + p + q + } + }'` + ;; + esac + case $win32_nmres in + import*) win32_libid_type="x86 archive import";; + *) win32_libid_type="x86 archive static";; + esac + fi + ;; + *DLL*) + win32_libid_type="x86 DLL" + ;; + *executable*) # but shell scripts are "executable" too... + case $win32_fileres in + *MS\ Windows\ PE\ Intel*) + win32_libid_type="x86 DLL" + ;; + esac + ;; + esac + $ECHO "$win32_libid_type" +} + +# func_cygming_dll_for_implib ARG +# +# Platform-specific function to extract the +# name of the DLL associated with the specified +# import library ARG. +# Invoked by eval'ing the libtool variable +# $sharedlib_from_linklib_cmd +# Result is available in the variable +# $sharedlib_from_linklib_result +func_cygming_dll_for_implib () +{ + $debug_cmd + + sharedlib_from_linklib_result=`$DLLTOOL --identify-strict --identify "$1"` +} + +# func_cygming_dll_for_implib_fallback_core SECTION_NAME LIBNAMEs +# +# The is the core of a fallback implementation of a +# platform-specific function to extract the name of the +# DLL associated with the specified import library LIBNAME. +# +# SECTION_NAME is either .idata$6 or .idata$7, depending +# on the platform and compiler that created the implib. +# +# Echos the name of the DLL associated with the +# specified import library. +func_cygming_dll_for_implib_fallback_core () +{ + $debug_cmd + + match_literal=`$ECHO "$1" | $SED "$sed_make_literal_regex"` + $OBJDUMP -s --section "$1" "$2" 2>/dev/null | + $SED '/^Contents of section '"$match_literal"':/{ + # Place marker at beginning of archive member dllname section + s/.*/====MARK====/ + p + d + } + # These lines can sometimes be longer than 43 characters, but + # are always uninteresting + /:[ ]*file format pe[i]\{,1\}-/d + /^In archive [^:]*:/d + # Ensure marker is printed + /^====MARK====/p + # Remove all lines with less than 43 characters + /^.\{43\}/!d + # From remaining lines, remove first 43 characters + s/^.\{43\}//' | + $SED -n ' + # Join marker and all lines until next marker into a single line + /^====MARK====/ b para + H + $ b para + b + :para + x + s/\n//g + # Remove the marker + s/^====MARK====// + # Remove trailing dots and whitespace + s/[\. \t]*$// + # Print + /./p' | + # we now have a list, one entry per line, of the stringified + # contents of the appropriate section of all members of the + # archive that possess that section. Heuristic: eliminate + # all those that have a first or second character that is + # a '.' (that is, objdump's representation of an unprintable + # character.) This should work for all archives with less than + # 0x302f exports -- but will fail for DLLs whose name actually + # begins with a literal '.' or a single character followed by + # a '.'. + # + # Of those that remain, print the first one. + $SED -e '/^\./d;/^.\./d;q' +} + +# func_cygming_dll_for_implib_fallback ARG +# Platform-specific function to extract the +# name of the DLL associated with the specified +# import library ARG. +# +# This fallback implementation is for use when $DLLTOOL +# does not support the --identify-strict option. +# Invoked by eval'ing the libtool variable +# $sharedlib_from_linklib_cmd +# Result is available in the variable +# $sharedlib_from_linklib_result +func_cygming_dll_for_implib_fallback () +{ + $debug_cmd + + if func_cygming_gnu_implib_p "$1"; then + # binutils import library + sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$7' "$1"` + elif func_cygming_ms_implib_p "$1"; then + # ms-generated import library + sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$6' "$1"` + else + # unknown + sharedlib_from_linklib_result= + fi +} + + +# func_extract_an_archive dir oldlib +func_extract_an_archive () +{ + $debug_cmd + + f_ex_an_ar_dir=$1; shift + f_ex_an_ar_oldlib=$1 + if test yes = "$lock_old_archive_extraction"; then + lockfile=$f_ex_an_ar_oldlib.lock + until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do + func_echo "Waiting for $lockfile to be removed" + sleep 2 + done + fi + func_show_eval "(cd \$f_ex_an_ar_dir && $AR x \"\$f_ex_an_ar_oldlib\")" \ + 'stat=$?; rm -f "$lockfile"; exit $stat' + if test yes = "$lock_old_archive_extraction"; then + $opt_dry_run || rm -f "$lockfile" + fi + if ($AR t "$f_ex_an_ar_oldlib" | sort | sort -uc >/dev/null 2>&1); then + : + else + func_fatal_error "object name conflicts in archive: $f_ex_an_ar_dir/$f_ex_an_ar_oldlib" + fi +} + + +# func_extract_archives gentop oldlib ... +func_extract_archives () +{ + $debug_cmd + + my_gentop=$1; shift + my_oldlibs=${1+"$@"} + my_oldobjs= + my_xlib= + my_xabs= + my_xdir= + + for my_xlib in $my_oldlibs; do + # Extract the objects. + case $my_xlib in + [\\/]* | [A-Za-z]:[\\/]*) my_xabs=$my_xlib ;; + *) my_xabs=`pwd`"/$my_xlib" ;; + esac + func_basename "$my_xlib" + my_xlib=$func_basename_result + my_xlib_u=$my_xlib + while :; do + case " $extracted_archives " in + *" $my_xlib_u "*) + func_arith $extracted_serial + 1 + extracted_serial=$func_arith_result + my_xlib_u=lt$extracted_serial-$my_xlib ;; + *) break ;; + esac + done + extracted_archives="$extracted_archives $my_xlib_u" + my_xdir=$my_gentop/$my_xlib_u + + func_mkdir_p "$my_xdir" + + case $host in + *-darwin*) + func_verbose "Extracting $my_xabs" + # Do not bother doing anything if just a dry run + $opt_dry_run || { + darwin_orig_dir=`pwd` + cd $my_xdir || exit $? + darwin_archive=$my_xabs + darwin_curdir=`pwd` + func_basename "$darwin_archive" + darwin_base_archive=$func_basename_result + darwin_arches=`$LIPO -info "$darwin_archive" 2>/dev/null | $GREP Architectures 2>/dev/null || true` + if test -n "$darwin_arches"; then + darwin_arches=`$ECHO "$darwin_arches" | $SED -e 's/.*are://'` + darwin_arch= + func_verbose "$darwin_base_archive has multiple architectures $darwin_arches" + for darwin_arch in $darwin_arches; do + func_mkdir_p "unfat-$$/$darwin_base_archive-$darwin_arch" + $LIPO -thin $darwin_arch -output "unfat-$$/$darwin_base_archive-$darwin_arch/$darwin_base_archive" "$darwin_archive" + cd "unfat-$$/$darwin_base_archive-$darwin_arch" + func_extract_an_archive "`pwd`" "$darwin_base_archive" + cd "$darwin_curdir" + $RM "unfat-$$/$darwin_base_archive-$darwin_arch/$darwin_base_archive" + done # $darwin_arches + ## Okay now we've a bunch of thin objects, gotta fatten them up :) + darwin_filelist=`find unfat-$$ -type f -name \*.o -print -o -name \*.lo -print | $SED -e "$sed_basename" | sort -u` + darwin_file= + darwin_files= + for darwin_file in $darwin_filelist; do + darwin_files=`find unfat-$$ -name $darwin_file -print | sort | $NL2SP` + $LIPO -create -output "$darwin_file" $darwin_files + done # $darwin_filelist + $RM -rf unfat-$$ + cd "$darwin_orig_dir" + else + cd $darwin_orig_dir + func_extract_an_archive "$my_xdir" "$my_xabs" + fi # $darwin_arches + } # !$opt_dry_run + ;; + *) + func_extract_an_archive "$my_xdir" "$my_xabs" + ;; + esac + my_oldobjs="$my_oldobjs "`find $my_xdir -name \*.$objext -print -o -name \*.lo -print | sort | $NL2SP` + done + + func_extract_archives_result=$my_oldobjs +} + + +# func_emit_wrapper [arg=no] +# +# Emit a libtool wrapper script on stdout. +# Don't directly open a file because we may want to +# incorporate the script contents within a cygwin/mingw +# wrapper executable. Must ONLY be called from within +# func_mode_link because it depends on a number of variables +# set therein. +# +# ARG is the value that the WRAPPER_SCRIPT_BELONGS_IN_OBJDIR +# variable will take. If 'yes', then the emitted script +# will assume that the directory where it is stored is +# the $objdir directory. This is a cygwin/mingw-specific +# behavior. +func_emit_wrapper () +{ + func_emit_wrapper_arg1=${1-no} + + $ECHO "\ +#! $SHELL + +# $output - temporary wrapper script for $objdir/$outputname +# Generated by $PROGRAM (GNU $PACKAGE) $VERSION +# +# The $output program cannot be directly executed until all the libtool +# libraries that it depends on are installed. +# +# This wrapper script should never be moved out of the build directory. +# If it is, it will not operate correctly. + +# Sed substitution that helps us do robust quoting. It backslashifies +# metacharacters that are still active within double-quoted strings. +sed_quote_subst='$sed_quote_subst' + +# Be Bourne compatible +if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then + emulate sh + NULLCMD=: + # Zsh 3.x and 4.x performs word splitting on \${1+\"\$@\"}, which + # is contrary to our usage. Disable this feature. + alias -g '\${1+\"\$@\"}'='\"\$@\"' + setopt NO_GLOB_SUBST +else + case \`(set -o) 2>/dev/null\` in *posix*) set -o posix;; esac +fi +BIN_SH=xpg4; export BIN_SH # for Tru64 +DUALCASE=1; export DUALCASE # for MKS sh + +# The HP-UX ksh and POSIX shell print the target directory to stdout +# if CDPATH is set. +(unset CDPATH) >/dev/null 2>&1 && unset CDPATH + +relink_command=\"$relink_command\" + +# This environment variable determines our operation mode. +if test \"\$libtool_install_magic\" = \"$magic\"; then + # install mode needs the following variables: + generated_by_libtool_version='$macro_version' + notinst_deplibs='$notinst_deplibs' +else + # When we are sourced in execute mode, \$file and \$ECHO are already set. + if test \"\$libtool_execute_magic\" != \"$magic\"; then + file=\"\$0\"" + + qECHO=`$ECHO "$ECHO" | $SED "$sed_quote_subst"` + $ECHO "\ + +# A function that is used when there is no print builtin or printf. +func_fallback_echo () +{ + eval 'cat <<_LTECHO_EOF +\$1 +_LTECHO_EOF' +} + ECHO=\"$qECHO\" + fi + +# Very basic option parsing. These options are (a) specific to +# the libtool wrapper, (b) are identical between the wrapper +# /script/ and the wrapper /executable/ that is used only on +# windows platforms, and (c) all begin with the string "--lt-" +# (application programs are unlikely to have options that match +# this pattern). +# +# There are only two supported options: --lt-debug and +# --lt-dump-script. There is, deliberately, no --lt-help. +# +# The first argument to this parsing function should be the +# script's $0 value, followed by "$@". +lt_option_debug= +func_parse_lt_options () +{ + lt_script_arg0=\$0 + shift + for lt_opt + do + case \"\$lt_opt\" in + --lt-debug) lt_option_debug=1 ;; + --lt-dump-script) + lt_dump_D=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%/[^/]*$%%'\` + test \"X\$lt_dump_D\" = \"X\$lt_script_arg0\" && lt_dump_D=. + lt_dump_F=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%^.*/%%'\` + cat \"\$lt_dump_D/\$lt_dump_F\" + exit 0 + ;; + --lt-*) + \$ECHO \"Unrecognized --lt- option: '\$lt_opt'\" 1>&2 + exit 1 + ;; + esac + done + + # Print the debug banner immediately: + if test -n \"\$lt_option_debug\"; then + echo \"$outputname:$output:\$LINENO: libtool wrapper (GNU $PACKAGE) $VERSION\" 1>&2 + fi +} + +# Used when --lt-debug. Prints its arguments to stdout +# (redirection is the responsibility of the caller) +func_lt_dump_args () +{ + lt_dump_args_N=1; + for lt_arg + do + \$ECHO \"$outputname:$output:\$LINENO: newargv[\$lt_dump_args_N]: \$lt_arg\" + lt_dump_args_N=\`expr \$lt_dump_args_N + 1\` + done +} + +# Core function for launching the target application +func_exec_program_core () +{ +" + case $host in + # Backslashes separate directories on plain windows + *-*-mingw | *-*-os2* | *-cegcc*) + $ECHO "\ + if test -n \"\$lt_option_debug\"; then + \$ECHO \"$outputname:$output:\$LINENO: newargv[0]: \$progdir\\\\\$program\" 1>&2 + func_lt_dump_args \${1+\"\$@\"} 1>&2 + fi + exec \"\$progdir\\\\\$program\" \${1+\"\$@\"} +" + ;; + + *) + $ECHO "\ + if test -n \"\$lt_option_debug\"; then + \$ECHO \"$outputname:$output:\$LINENO: newargv[0]: \$progdir/\$program\" 1>&2 + func_lt_dump_args \${1+\"\$@\"} 1>&2 + fi + exec \"\$progdir/\$program\" \${1+\"\$@\"} +" + ;; + esac + $ECHO "\ + \$ECHO \"\$0: cannot exec \$program \$*\" 1>&2 + exit 1 +} + +# A function to encapsulate launching the target application +# Strips options in the --lt-* namespace from \$@ and +# launches target application with the remaining arguments. +func_exec_program () +{ + case \" \$* \" in + *\\ --lt-*) + for lt_wr_arg + do + case \$lt_wr_arg in + --lt-*) ;; + *) set x \"\$@\" \"\$lt_wr_arg\"; shift;; + esac + shift + done ;; + esac + func_exec_program_core \${1+\"\$@\"} +} + + # Parse options + func_parse_lt_options \"\$0\" \${1+\"\$@\"} + + # Find the directory that this script lives in. + thisdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*$%%'\` + test \"x\$thisdir\" = \"x\$file\" && thisdir=. + + # Follow symbolic links until we get to the real thisdir. + file=\`ls -ld \"\$file\" | $SED -n 's/.*-> //p'\` + while test -n \"\$file\"; do + destdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*\$%%'\` + + # If there was a directory component, then change thisdir. + if test \"x\$destdir\" != \"x\$file\"; then + case \"\$destdir\" in + [\\\\/]* | [A-Za-z]:[\\\\/]*) thisdir=\"\$destdir\" ;; + *) thisdir=\"\$thisdir/\$destdir\" ;; + esac + fi + + file=\`\$ECHO \"\$file\" | $SED 's%^.*/%%'\` + file=\`ls -ld \"\$thisdir/\$file\" | $SED -n 's/.*-> //p'\` + done + + # Usually 'no', except on cygwin/mingw when embedded into + # the cwrapper. + WRAPPER_SCRIPT_BELONGS_IN_OBJDIR=$func_emit_wrapper_arg1 + if test \"\$WRAPPER_SCRIPT_BELONGS_IN_OBJDIR\" = \"yes\"; then + # special case for '.' + if test \"\$thisdir\" = \".\"; then + thisdir=\`pwd\` + fi + # remove .libs from thisdir + case \"\$thisdir\" in + *[\\\\/]$objdir ) thisdir=\`\$ECHO \"\$thisdir\" | $SED 's%[\\\\/][^\\\\/]*$%%'\` ;; + $objdir ) thisdir=. ;; + esac + fi + + # Try to get the absolute directory name. + absdir=\`cd \"\$thisdir\" && pwd\` + test -n \"\$absdir\" && thisdir=\"\$absdir\" +" + + if test yes = "$fast_install"; then + $ECHO "\ + program=lt-'$outputname'$exeext + progdir=\"\$thisdir/$objdir\" + + if test ! -f \"\$progdir/\$program\" || + { file=\`ls -1dt \"\$progdir/\$program\" \"\$progdir/../\$program\" 2>/dev/null | $SED 1q\`; \\ + test \"X\$file\" != \"X\$progdir/\$program\"; }; then + + file=\"\$\$-\$program\" + + if test ! -d \"\$progdir\"; then + $MKDIR \"\$progdir\" + else + $RM \"\$progdir/\$file\" + fi" + + $ECHO "\ + + # relink executable if necessary + if test -n \"\$relink_command\"; then + if relink_command_output=\`eval \$relink_command 2>&1\`; then : + else + \$ECHO \"\$relink_command_output\" >&2 + $RM \"\$progdir/\$file\" + exit 1 + fi + fi + + $MV \"\$progdir/\$file\" \"\$progdir/\$program\" 2>/dev/null || + { $RM \"\$progdir/\$program\"; + $MV \"\$progdir/\$file\" \"\$progdir/\$program\"; } + $RM \"\$progdir/\$file\" + fi" + else + $ECHO "\ + program='$outputname' + progdir=\"\$thisdir/$objdir\" +" + fi + + $ECHO "\ + + if test -f \"\$progdir/\$program\"; then" + + # fixup the dll searchpath if we need to. + # + # Fix the DLL searchpath if we need to. Do this before prepending + # to shlibpath, because on Windows, both are PATH and uninstalled + # libraries must come first. + if test -n "$dllsearchpath"; then + $ECHO "\ + # Add the dll search path components to the executable PATH + PATH=$dllsearchpath:\$PATH +" + fi + + # Export our shlibpath_var if we have one. + if test yes = "$shlibpath_overrides_runpath" && test -n "$shlibpath_var" && test -n "$temp_rpath"; then + $ECHO "\ + # Add our own library path to $shlibpath_var + $shlibpath_var=\"$temp_rpath\$$shlibpath_var\" + + # Some systems cannot cope with colon-terminated $shlibpath_var + # The second colon is a workaround for a bug in BeOS R4 sed + $shlibpath_var=\`\$ECHO \"\$$shlibpath_var\" | $SED 's/::*\$//'\` + + export $shlibpath_var +" + fi + + $ECHO "\ + if test \"\$libtool_execute_magic\" != \"$magic\"; then + # Run the actual program with our arguments. + func_exec_program \${1+\"\$@\"} + fi + else + # The program doesn't exist. + \$ECHO \"\$0: error: '\$progdir/\$program' does not exist\" 1>&2 + \$ECHO \"This script is just a wrapper for \$program.\" 1>&2 + \$ECHO \"See the $PACKAGE documentation for more information.\" 1>&2 + exit 1 + fi +fi\ +" +} + + +# func_emit_cwrapperexe_src +# emit the source code for a wrapper executable on stdout +# Must ONLY be called from within func_mode_link because +# it depends on a number of variable set therein. +func_emit_cwrapperexe_src () +{ + cat < +#include +#ifdef _MSC_VER +# include +# include +# include +#else +# include +# include +# ifdef __CYGWIN__ +# include +# endif +#endif +#include +#include +#include +#include +#include +#include +#include +#include + +#define STREQ(s1, s2) (strcmp ((s1), (s2)) == 0) + +/* declarations of non-ANSI functions */ +#if defined __MINGW32__ +# ifdef __STRICT_ANSI__ +int _putenv (const char *); +# endif +#elif defined __CYGWIN__ +# ifdef __STRICT_ANSI__ +char *realpath (const char *, char *); +int putenv (char *); +int setenv (const char *, const char *, int); +# endif +/* #elif defined other_platform || defined ... */ +#endif + +/* portability defines, excluding path handling macros */ +#if defined _MSC_VER +# define setmode _setmode +# define stat _stat +# define chmod _chmod +# define getcwd _getcwd +# define putenv _putenv +# define S_IXUSR _S_IEXEC +#elif defined __MINGW32__ +# define setmode _setmode +# define stat _stat +# define chmod _chmod +# define getcwd _getcwd +# define putenv _putenv +#elif defined __CYGWIN__ +# define HAVE_SETENV +# define FOPEN_WB "wb" +/* #elif defined other platforms ... */ +#endif + +#if defined PATH_MAX +# define LT_PATHMAX PATH_MAX +#elif defined MAXPATHLEN +# define LT_PATHMAX MAXPATHLEN +#else +# define LT_PATHMAX 1024 +#endif + +#ifndef S_IXOTH +# define S_IXOTH 0 +#endif +#ifndef S_IXGRP +# define S_IXGRP 0 +#endif + +/* path handling portability macros */ +#ifndef DIR_SEPARATOR +# define DIR_SEPARATOR '/' +# define PATH_SEPARATOR ':' +#endif + +#if defined _WIN32 || defined __MSDOS__ || defined __DJGPP__ || \ + defined __OS2__ +# define HAVE_DOS_BASED_FILE_SYSTEM +# define FOPEN_WB "wb" +# ifndef DIR_SEPARATOR_2 +# define DIR_SEPARATOR_2 '\\' +# endif +# ifndef PATH_SEPARATOR_2 +# define PATH_SEPARATOR_2 ';' +# endif +#endif + +#ifndef DIR_SEPARATOR_2 +# define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR) +#else /* DIR_SEPARATOR_2 */ +# define IS_DIR_SEPARATOR(ch) \ + (((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2)) +#endif /* DIR_SEPARATOR_2 */ + +#ifndef PATH_SEPARATOR_2 +# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR) +#else /* PATH_SEPARATOR_2 */ +# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR_2) +#endif /* PATH_SEPARATOR_2 */ + +#ifndef FOPEN_WB +# define FOPEN_WB "w" +#endif +#ifndef _O_BINARY +# define _O_BINARY 0 +#endif + +#define XMALLOC(type, num) ((type *) xmalloc ((num) * sizeof(type))) +#define XFREE(stale) do { \ + if (stale) { free (stale); stale = 0; } \ +} while (0) + +#if defined LT_DEBUGWRAPPER +static int lt_debug = 1; +#else +static int lt_debug = 0; +#endif + +const char *program_name = "libtool-wrapper"; /* in case xstrdup fails */ + +void *xmalloc (size_t num); +char *xstrdup (const char *string); +const char *base_name (const char *name); +char *find_executable (const char *wrapper); +char *chase_symlinks (const char *pathspec); +int make_executable (const char *path); +int check_executable (const char *path); +char *strendzap (char *str, const char *pat); +void lt_debugprintf (const char *file, int line, const char *fmt, ...); +void lt_fatal (const char *file, int line, const char *message, ...); +static const char *nonnull (const char *s); +static const char *nonempty (const char *s); +void lt_setenv (const char *name, const char *value); +char *lt_extend_str (const char *orig_value, const char *add, int to_end); +void lt_update_exe_path (const char *name, const char *value); +void lt_update_lib_path (const char *name, const char *value); +char **prepare_spawn (char **argv); +void lt_dump_script (FILE *f); +EOF + + cat <= 0) + && (st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH))) + return 1; + else + return 0; +} + +int +make_executable (const char *path) +{ + int rval = 0; + struct stat st; + + lt_debugprintf (__FILE__, __LINE__, "(make_executable): %s\n", + nonempty (path)); + if ((!path) || (!*path)) + return 0; + + if (stat (path, &st) >= 0) + { + rval = chmod (path, st.st_mode | S_IXOTH | S_IXGRP | S_IXUSR); + } + return rval; +} + +/* Searches for the full path of the wrapper. Returns + newly allocated full path name if found, NULL otherwise + Does not chase symlinks, even on platforms that support them. +*/ +char * +find_executable (const char *wrapper) +{ + int has_slash = 0; + const char *p; + const char *p_next; + /* static buffer for getcwd */ + char tmp[LT_PATHMAX + 1]; + size_t tmp_len; + char *concat_name; + + lt_debugprintf (__FILE__, __LINE__, "(find_executable): %s\n", + nonempty (wrapper)); + + if ((wrapper == NULL) || (*wrapper == '\0')) + return NULL; + + /* Absolute path? */ +#if defined HAVE_DOS_BASED_FILE_SYSTEM + if (isalpha ((unsigned char) wrapper[0]) && wrapper[1] == ':') + { + concat_name = xstrdup (wrapper); + if (check_executable (concat_name)) + return concat_name; + XFREE (concat_name); + } + else + { +#endif + if (IS_DIR_SEPARATOR (wrapper[0])) + { + concat_name = xstrdup (wrapper); + if (check_executable (concat_name)) + return concat_name; + XFREE (concat_name); + } +#if defined HAVE_DOS_BASED_FILE_SYSTEM + } +#endif + + for (p = wrapper; *p; p++) + if (*p == '/') + { + has_slash = 1; + break; + } + if (!has_slash) + { + /* no slashes; search PATH */ + const char *path = getenv ("PATH"); + if (path != NULL) + { + for (p = path; *p; p = p_next) + { + const char *q; + size_t p_len; + for (q = p; *q; q++) + if (IS_PATH_SEPARATOR (*q)) + break; + p_len = (size_t) (q - p); + p_next = (*q == '\0' ? q : q + 1); + if (p_len == 0) + { + /* empty path: current directory */ + if (getcwd (tmp, LT_PATHMAX) == NULL) + lt_fatal (__FILE__, __LINE__, "getcwd failed: %s", + nonnull (strerror (errno))); + tmp_len = strlen (tmp); + concat_name = + XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1); + memcpy (concat_name, tmp, tmp_len); + concat_name[tmp_len] = '/'; + strcpy (concat_name + tmp_len + 1, wrapper); + } + else + { + concat_name = + XMALLOC (char, p_len + 1 + strlen (wrapper) + 1); + memcpy (concat_name, p, p_len); + concat_name[p_len] = '/'; + strcpy (concat_name + p_len + 1, wrapper); + } + if (check_executable (concat_name)) + return concat_name; + XFREE (concat_name); + } + } + /* not found in PATH; assume curdir */ + } + /* Relative path | not found in path: prepend cwd */ + if (getcwd (tmp, LT_PATHMAX) == NULL) + lt_fatal (__FILE__, __LINE__, "getcwd failed: %s", + nonnull (strerror (errno))); + tmp_len = strlen (tmp); + concat_name = XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1); + memcpy (concat_name, tmp, tmp_len); + concat_name[tmp_len] = '/'; + strcpy (concat_name + tmp_len + 1, wrapper); + + if (check_executable (concat_name)) + return concat_name; + XFREE (concat_name); + return NULL; +} + +char * +chase_symlinks (const char *pathspec) +{ +#ifndef S_ISLNK + return xstrdup (pathspec); +#else + char buf[LT_PATHMAX]; + struct stat s; + char *tmp_pathspec = xstrdup (pathspec); + char *p; + int has_symlinks = 0; + while (strlen (tmp_pathspec) && !has_symlinks) + { + lt_debugprintf (__FILE__, __LINE__, + "checking path component for symlinks: %s\n", + tmp_pathspec); + if (lstat (tmp_pathspec, &s) == 0) + { + if (S_ISLNK (s.st_mode) != 0) + { + has_symlinks = 1; + break; + } + + /* search backwards for last DIR_SEPARATOR */ + p = tmp_pathspec + strlen (tmp_pathspec) - 1; + while ((p > tmp_pathspec) && (!IS_DIR_SEPARATOR (*p))) + p--; + if ((p == tmp_pathspec) && (!IS_DIR_SEPARATOR (*p))) + { + /* no more DIR_SEPARATORS left */ + break; + } + *p = '\0'; + } + else + { + lt_fatal (__FILE__, __LINE__, + "error accessing file \"%s\": %s", + tmp_pathspec, nonnull (strerror (errno))); + } + } + XFREE (tmp_pathspec); + + if (!has_symlinks) + { + return xstrdup (pathspec); + } + + tmp_pathspec = realpath (pathspec, buf); + if (tmp_pathspec == 0) + { + lt_fatal (__FILE__, __LINE__, + "could not follow symlinks for %s", pathspec); + } + return xstrdup (tmp_pathspec); +#endif +} + +char * +strendzap (char *str, const char *pat) +{ + size_t len, patlen; + + assert (str != NULL); + assert (pat != NULL); + + len = strlen (str); + patlen = strlen (pat); + + if (patlen <= len) + { + str += len - patlen; + if (STREQ (str, pat)) + *str = '\0'; + } + return str; +} + +void +lt_debugprintf (const char *file, int line, const char *fmt, ...) +{ + va_list args; + if (lt_debug) + { + (void) fprintf (stderr, "%s:%s:%d: ", program_name, file, line); + va_start (args, fmt); + (void) vfprintf (stderr, fmt, args); + va_end (args); + } +} + +static void +lt_error_core (int exit_status, const char *file, + int line, const char *mode, + const char *message, va_list ap) +{ + fprintf (stderr, "%s:%s:%d: %s: ", program_name, file, line, mode); + vfprintf (stderr, message, ap); + fprintf (stderr, ".\n"); + + if (exit_status >= 0) + exit (exit_status); +} + +void +lt_fatal (const char *file, int line, const char *message, ...) +{ + va_list ap; + va_start (ap, message); + lt_error_core (EXIT_FAILURE, file, line, "FATAL", message, ap); + va_end (ap); +} + +static const char * +nonnull (const char *s) +{ + return s ? s : "(null)"; +} + +static const char * +nonempty (const char *s) +{ + return (s && !*s) ? "(empty)" : nonnull (s); +} + +void +lt_setenv (const char *name, const char *value) +{ + lt_debugprintf (__FILE__, __LINE__, + "(lt_setenv) setting '%s' to '%s'\n", + nonnull (name), nonnull (value)); + { +#ifdef HAVE_SETENV + /* always make a copy, for consistency with !HAVE_SETENV */ + char *str = xstrdup (value); + setenv (name, str, 1); +#else + size_t len = strlen (name) + 1 + strlen (value) + 1; + char *str = XMALLOC (char, len); + sprintf (str, "%s=%s", name, value); + if (putenv (str) != EXIT_SUCCESS) + { + XFREE (str); + } +#endif + } +} + +char * +lt_extend_str (const char *orig_value, const char *add, int to_end) +{ + char *new_value; + if (orig_value && *orig_value) + { + size_t orig_value_len = strlen (orig_value); + size_t add_len = strlen (add); + new_value = XMALLOC (char, add_len + orig_value_len + 1); + if (to_end) + { + strcpy (new_value, orig_value); + strcpy (new_value + orig_value_len, add); + } + else + { + strcpy (new_value, add); + strcpy (new_value + add_len, orig_value); + } + } + else + { + new_value = xstrdup (add); + } + return new_value; +} + +void +lt_update_exe_path (const char *name, const char *value) +{ + lt_debugprintf (__FILE__, __LINE__, + "(lt_update_exe_path) modifying '%s' by prepending '%s'\n", + nonnull (name), nonnull (value)); + + if (name && *name && value && *value) + { + char *new_value = lt_extend_str (getenv (name), value, 0); + /* some systems can't cope with a ':'-terminated path #' */ + size_t len = strlen (new_value); + while ((len > 0) && IS_PATH_SEPARATOR (new_value[len-1])) + { + new_value[--len] = '\0'; + } + lt_setenv (name, new_value); + XFREE (new_value); + } +} + +void +lt_update_lib_path (const char *name, const char *value) +{ + lt_debugprintf (__FILE__, __LINE__, + "(lt_update_lib_path) modifying '%s' by prepending '%s'\n", + nonnull (name), nonnull (value)); + + if (name && *name && value && *value) + { + char *new_value = lt_extend_str (getenv (name), value, 0); + lt_setenv (name, new_value); + XFREE (new_value); + } +} + +EOF + case $host_os in + mingw*) + cat <<"EOF" + +/* Prepares an argument vector before calling spawn(). + Note that spawn() does not by itself call the command interpreter + (getenv ("COMSPEC") != NULL ? getenv ("COMSPEC") : + ({ OSVERSIONINFO v; v.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); + GetVersionEx(&v); + v.dwPlatformId == VER_PLATFORM_WIN32_NT; + }) ? "cmd.exe" : "command.com"). + Instead it simply concatenates the arguments, separated by ' ', and calls + CreateProcess(). We must quote the arguments since Win32 CreateProcess() + interprets characters like ' ', '\t', '\\', '"' (but not '<' and '>') in a + special way: + - Space and tab are interpreted as delimiters. They are not treated as + delimiters if they are surrounded by double quotes: "...". + - Unescaped double quotes are removed from the input. Their only effect is + that within double quotes, space and tab are treated like normal + characters. + - Backslashes not followed by double quotes are not special. + - But 2*n+1 backslashes followed by a double quote become + n backslashes followed by a double quote (n >= 0): + \" -> " + \\\" -> \" + \\\\\" -> \\" + */ +#define SHELL_SPECIAL_CHARS "\"\\ \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037" +#define SHELL_SPACE_CHARS " \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037" +char ** +prepare_spawn (char **argv) +{ + size_t argc; + char **new_argv; + size_t i; + + /* Count number of arguments. */ + for (argc = 0; argv[argc] != NULL; argc++) + ; + + /* Allocate new argument vector. */ + new_argv = XMALLOC (char *, argc + 1); + + /* Put quoted arguments into the new argument vector. */ + for (i = 0; i < argc; i++) + { + const char *string = argv[i]; + + if (string[0] == '\0') + new_argv[i] = xstrdup ("\"\""); + else if (strpbrk (string, SHELL_SPECIAL_CHARS) != NULL) + { + int quote_around = (strpbrk (string, SHELL_SPACE_CHARS) != NULL); + size_t length; + unsigned int backslashes; + const char *s; + char *quoted_string; + char *p; + + length = 0; + backslashes = 0; + if (quote_around) + length++; + for (s = string; *s != '\0'; s++) + { + char c = *s; + if (c == '"') + length += backslashes + 1; + length++; + if (c == '\\') + backslashes++; + else + backslashes = 0; + } + if (quote_around) + length += backslashes + 1; + + quoted_string = XMALLOC (char, length + 1); + + p = quoted_string; + backslashes = 0; + if (quote_around) + *p++ = '"'; + for (s = string; *s != '\0'; s++) + { + char c = *s; + if (c == '"') + { + unsigned int j; + for (j = backslashes + 1; j > 0; j--) + *p++ = '\\'; + } + *p++ = c; + if (c == '\\') + backslashes++; + else + backslashes = 0; + } + if (quote_around) + { + unsigned int j; + for (j = backslashes; j > 0; j--) + *p++ = '\\'; + *p++ = '"'; + } + *p = '\0'; + + new_argv[i] = quoted_string; + } + else + new_argv[i] = (char *) string; + } + new_argv[argc] = NULL; + + return new_argv; +} +EOF + ;; + esac + + cat <<"EOF" +void lt_dump_script (FILE* f) +{ +EOF + func_emit_wrapper yes | + $SED -n -e ' +s/^\(.\{79\}\)\(..*\)/\1\ +\2/ +h +s/\([\\"]\)/\\\1/g +s/$/\\n/ +s/\([^\n]*\).*/ fputs ("\1", f);/p +g +D' + cat <<"EOF" +} +EOF +} +# end: func_emit_cwrapperexe_src + +# func_win32_import_lib_p ARG +# True if ARG is an import lib, as indicated by $file_magic_cmd +func_win32_import_lib_p () +{ + $debug_cmd + + case `eval $file_magic_cmd \"\$1\" 2>/dev/null | $SED -e 10q` in + *import*) : ;; + *) false ;; + esac +} + +# func_suncc_cstd_abi +# !!ONLY CALL THIS FOR SUN CC AFTER $compile_command IS FULLY EXPANDED!! +# Several compiler flags select an ABI that is incompatible with the +# Cstd library. Avoid specifying it if any are in CXXFLAGS. +func_suncc_cstd_abi () +{ + $debug_cmd + + case " $compile_command " in + *" -compat=g "*|*\ -std=c++[0-9][0-9]\ *|*" -library=stdcxx4 "*|*" -library=stlport4 "*) + suncc_use_cstd_abi=no + ;; + *) + suncc_use_cstd_abi=yes + ;; + esac +} + +# func_mode_link arg... +func_mode_link () +{ + $debug_cmd + + case $host in + *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*) + # It is impossible to link a dll without this setting, and + # we shouldn't force the makefile maintainer to figure out + # what system we are compiling for in order to pass an extra + # flag for every libtool invocation. + # allow_undefined=no + + # FIXME: Unfortunately, there are problems with the above when trying + # to make a dll that has undefined symbols, in which case not + # even a static library is built. For now, we need to specify + # -no-undefined on the libtool link line when we can be certain + # that all symbols are satisfied, otherwise we get a static library. + allow_undefined=yes + ;; + *) + allow_undefined=yes + ;; + esac + libtool_args=$nonopt + base_compile="$nonopt $@" + compile_command=$nonopt + finalize_command=$nonopt + + compile_rpath= + finalize_rpath= + compile_shlibpath= + finalize_shlibpath= + convenience= + old_convenience= + deplibs= + old_deplibs= + compiler_flags= + linker_flags= + dllsearchpath= + lib_search_path=`pwd` + inst_prefix_dir= + new_inherited_linker_flags= + + avoid_version=no + bindir= + dlfiles= + dlprefiles= + dlself=no + export_dynamic=no + export_symbols= + export_symbols_regex= + generated= + libobjs= + ltlibs= + module=no + no_install=no + objs= + os2dllname= + non_pic_objects= + precious_files_regex= + prefer_static_libs=no + preload=false + prev= + prevarg= + release= + rpath= + xrpath= + perm_rpath= + temp_rpath= + thread_safe=no + vinfo= + vinfo_number=no + weak_libs= + single_module=$wl-single_module + func_infer_tag $base_compile + + # We need to know -static, to get the right output filenames. + for arg + do + case $arg in + -shared) + test yes != "$build_libtool_libs" \ + && func_fatal_configuration "cannot build a shared library" + build_old_libs=no + break + ;; + -all-static | -static | -static-libtool-libs) + case $arg in + -all-static) + if test yes = "$build_libtool_libs" && test -z "$link_static_flag"; then + func_warning "complete static linking is impossible in this configuration" + fi + if test -n "$link_static_flag"; then + dlopen_self=$dlopen_self_static + fi + prefer_static_libs=yes + ;; + -static) + if test -z "$pic_flag" && test -n "$link_static_flag"; then + dlopen_self=$dlopen_self_static + fi + prefer_static_libs=built + ;; + -static-libtool-libs) + if test -z "$pic_flag" && test -n "$link_static_flag"; then + dlopen_self=$dlopen_self_static + fi + prefer_static_libs=yes + ;; + esac + build_libtool_libs=no + build_old_libs=yes + break + ;; + esac + done + + # See if our shared archives depend on static archives. + test -n "$old_archive_from_new_cmds" && build_old_libs=yes + + # Go through the arguments, transforming them on the way. + while test "$#" -gt 0; do + arg=$1 + shift + func_quote_for_eval "$arg" + qarg=$func_quote_for_eval_unquoted_result + func_append libtool_args " $func_quote_for_eval_result" + + # If the previous option needs an argument, assign it. + if test -n "$prev"; then + case $prev in + output) + func_append compile_command " @OUTPUT@" + func_append finalize_command " @OUTPUT@" + ;; + esac + + case $prev in + bindir) + bindir=$arg + prev= + continue + ;; + dlfiles|dlprefiles) + $preload || { + # Add the symbol object into the linking commands. + func_append compile_command " @SYMFILE@" + func_append finalize_command " @SYMFILE@" + preload=: + } + case $arg in + *.la | *.lo) ;; # We handle these cases below. + force) + if test no = "$dlself"; then + dlself=needless + export_dynamic=yes + fi + prev= + continue + ;; + self) + if test dlprefiles = "$prev"; then + dlself=yes + elif test dlfiles = "$prev" && test yes != "$dlopen_self"; then + dlself=yes + else + dlself=needless + export_dynamic=yes + fi + prev= + continue + ;; + *) + if test dlfiles = "$prev"; then + func_append dlfiles " $arg" + else + func_append dlprefiles " $arg" + fi + prev= + continue + ;; + esac + ;; + expsyms) + export_symbols=$arg + test -f "$arg" \ + || func_fatal_error "symbol file '$arg' does not exist" + prev= + continue + ;; + expsyms_regex) + export_symbols_regex=$arg + prev= + continue + ;; + framework) + case $host in + *-*-darwin*) + case "$deplibs " in + *" $qarg.ltframework "*) ;; + *) func_append deplibs " $qarg.ltframework" # this is fixed later + ;; + esac + ;; + esac + prev= + continue + ;; + inst_prefix) + inst_prefix_dir=$arg + prev= + continue + ;; + mllvm) + # Clang does not use LLVM to link, so we can simply discard any + # '-mllvm $arg' options when doing the link step. + prev= + continue + ;; + objectlist) + if test -f "$arg"; then + save_arg=$arg + moreargs= + for fil in `cat "$save_arg"` + do +# func_append moreargs " $fil" + arg=$fil + # A libtool-controlled object. + + # Check to see that this really is a libtool object. + if func_lalib_unsafe_p "$arg"; then + pic_object= + non_pic_object= + + # Read the .lo file + func_source "$arg" + + if test -z "$pic_object" || + test -z "$non_pic_object" || + test none = "$pic_object" && + test none = "$non_pic_object"; then + func_fatal_error "cannot find name of object for '$arg'" + fi + + # Extract subdirectory from the argument. + func_dirname "$arg" "/" "" + xdir=$func_dirname_result + + if test none != "$pic_object"; then + # Prepend the subdirectory the object is found in. + pic_object=$xdir$pic_object + + if test dlfiles = "$prev"; then + if test yes = "$build_libtool_libs" && test yes = "$dlopen_support"; then + func_append dlfiles " $pic_object" + prev= + continue + else + # If libtool objects are unsupported, then we need to preload. + prev=dlprefiles + fi + fi + + # CHECK ME: I think I busted this. -Ossama + if test dlprefiles = "$prev"; then + # Preload the old-style object. + func_append dlprefiles " $pic_object" + prev= + fi + + # A PIC object. + func_append libobjs " $pic_object" + arg=$pic_object + fi + + # Non-PIC object. + if test none != "$non_pic_object"; then + # Prepend the subdirectory the object is found in. + non_pic_object=$xdir$non_pic_object + + # A standard non-PIC object + func_append non_pic_objects " $non_pic_object" + if test -z "$pic_object" || test none = "$pic_object"; then + arg=$non_pic_object + fi + else + # If the PIC object exists, use it instead. + # $xdir was prepended to $pic_object above. + non_pic_object=$pic_object + func_append non_pic_objects " $non_pic_object" + fi + else + # Only an error if not doing a dry-run. + if $opt_dry_run; then + # Extract subdirectory from the argument. + func_dirname "$arg" "/" "" + xdir=$func_dirname_result + + func_lo2o "$arg" + pic_object=$xdir$objdir/$func_lo2o_result + non_pic_object=$xdir$func_lo2o_result + func_append libobjs " $pic_object" + func_append non_pic_objects " $non_pic_object" + else + func_fatal_error "'$arg' is not a valid libtool object" + fi + fi + done + else + func_fatal_error "link input file '$arg' does not exist" + fi + arg=$save_arg + prev= + continue + ;; + os2dllname) + os2dllname=$arg + prev= + continue + ;; + precious_regex) + precious_files_regex=$arg + prev= + continue + ;; + release) + release=-$arg + prev= + continue + ;; + rpath | xrpath) + # We need an absolute path. + case $arg in + [\\/]* | [A-Za-z]:[\\/]*) ;; + *) + func_fatal_error "only absolute run-paths are allowed" + ;; + esac + if test rpath = "$prev"; then + case "$rpath " in + *" $arg "*) ;; + *) func_append rpath " $arg" ;; + esac + else + case "$xrpath " in + *" $arg "*) ;; + *) func_append xrpath " $arg" ;; + esac + fi + prev= + continue + ;; + shrext) + shrext_cmds=$arg + prev= + continue + ;; + weak) + func_append weak_libs " $arg" + prev= + continue + ;; + xcclinker) + func_append linker_flags " $qarg" + func_append compiler_flags " $qarg" + prev= + func_append compile_command " $qarg" + func_append finalize_command " $qarg" + continue + ;; + xcompiler) + func_append compiler_flags " $qarg" + prev= + func_append compile_command " $qarg" + func_append finalize_command " $qarg" + continue + ;; + xlinker) + func_append linker_flags " $qarg" + func_append compiler_flags " $wl$qarg" + prev= + func_append compile_command " $wl$qarg" + func_append finalize_command " $wl$qarg" + continue + ;; + *) + eval "$prev=\"\$arg\"" + prev= + continue + ;; + esac + fi # test -n "$prev" + + prevarg=$arg + + case $arg in + -all-static) + if test -n "$link_static_flag"; then + # See comment for -static flag below, for more details. + func_append compile_command " $link_static_flag" + func_append finalize_command " $link_static_flag" + fi + continue + ;; + + -allow-undefined) + # FIXME: remove this flag sometime in the future. + func_fatal_error "'-allow-undefined' must not be used because it is the default" + ;; + + -avoid-version) + avoid_version=yes + continue + ;; + + -bindir) + prev=bindir + continue + ;; + + -dlopen) + prev=dlfiles + continue + ;; + + -dlpreopen) + prev=dlprefiles + continue + ;; + + -export-dynamic) + export_dynamic=yes + continue + ;; + + -export-symbols | -export-symbols-regex) + if test -n "$export_symbols" || test -n "$export_symbols_regex"; then + func_fatal_error "more than one -exported-symbols argument is not allowed" + fi + if test X-export-symbols = "X$arg"; then + prev=expsyms + else + prev=expsyms_regex + fi + continue + ;; + + -framework) + prev=framework + continue + ;; + + -inst-prefix-dir) + prev=inst_prefix + continue + ;; + + # The native IRIX linker understands -LANG:*, -LIST:* and -LNO:* + # so, if we see these flags be careful not to treat them like -L + -L[A-Z][A-Z]*:*) + case $with_gcc/$host in + no/*-*-irix* | /*-*-irix*) + func_append compile_command " $arg" + func_append finalize_command " $arg" + ;; + esac + continue + ;; + + -L*) + func_stripname "-L" '' "$arg" + if test -z "$func_stripname_result"; then + if test "$#" -gt 0; then + func_fatal_error "require no space between '-L' and '$1'" + else + func_fatal_error "need path for '-L' option" + fi + fi + func_resolve_sysroot "$func_stripname_result" + dir=$func_resolve_sysroot_result + # We need an absolute path. + case $dir in + [\\/]* | [A-Za-z]:[\\/]*) ;; + *) + absdir=`cd "$dir" && pwd` + test -z "$absdir" && \ + func_fatal_error "cannot determine absolute directory name of '$dir'" + dir=$absdir + ;; + esac + case "$deplibs " in + *" -L$dir "* | *" $arg "*) + # Will only happen for absolute or sysroot arguments + ;; + *) + # Preserve sysroot, but never include relative directories + case $dir in + [\\/]* | [A-Za-z]:[\\/]* | =*) func_append deplibs " $arg" ;; + *) func_append deplibs " -L$dir" ;; + esac + func_append lib_search_path " $dir" + ;; + esac + case $host in + *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*) + testbindir=`$ECHO "$dir" | $SED 's*/lib$*/bin*'` + case :$dllsearchpath: in + *":$dir:"*) ;; + ::) dllsearchpath=$dir;; + *) func_append dllsearchpath ":$dir";; + esac + case :$dllsearchpath: in + *":$testbindir:"*) ;; + ::) dllsearchpath=$testbindir;; + *) func_append dllsearchpath ":$testbindir";; + esac + ;; + esac + continue + ;; + + -l*) + if test X-lc = "X$arg" || test X-lm = "X$arg"; then + case $host in + *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-beos* | *-cegcc* | *-*-haiku*) + # These systems don't actually have a C or math library (as such) + continue + ;; + *-*-os2*) + # These systems don't actually have a C library (as such) + test X-lc = "X$arg" && continue + ;; + *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* | *-*-bitrig*) + # Do not include libc due to us having libc/libc_r. + test X-lc = "X$arg" && continue + ;; + *-*-rhapsody* | *-*-darwin1.[012]) + # Rhapsody C and math libraries are in the System framework + func_append deplibs " System.ltframework" + continue + ;; + *-*-sco3.2v5* | *-*-sco5v6*) + # Causes problems with __ctype + test X-lc = "X$arg" && continue + ;; + *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*) + # Compiler inserts libc in the correct place for threads to work + test X-lc = "X$arg" && continue + ;; + esac + elif test X-lc_r = "X$arg"; then + case $host in + *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* | *-*-bitrig*) + # Do not include libc_r directly, use -pthread flag. + continue + ;; + esac + fi + func_append deplibs " $arg" + continue + ;; + + -mllvm) + prev=mllvm + continue + ;; + + -module) + module=yes + continue + ;; + + # Tru64 UNIX uses -model [arg] to determine the layout of C++ + # classes, name mangling, and exception handling. + # Darwin uses the -arch flag to determine output architecture. + -model|-arch|-isysroot|--sysroot) + func_append compiler_flags " $arg" + func_append compile_command " $arg" + func_append finalize_command " $arg" + prev=xcompiler + continue + ;; + + -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \ + |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*) + func_append compiler_flags " $arg" + func_append compile_command " $arg" + func_append finalize_command " $arg" + case "$new_inherited_linker_flags " in + *" $arg "*) ;; + * ) func_append new_inherited_linker_flags " $arg" ;; + esac + continue + ;; + + -multi_module) + single_module=$wl-multi_module + continue + ;; + + -no-fast-install) + fast_install=no + continue + ;; + + -no-install) + case $host in + *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-darwin* | *-cegcc*) + # The PATH hackery in wrapper scripts is required on Windows + # and Darwin in order for the loader to find any dlls it needs. + func_warning "'-no-install' is ignored for $host" + func_warning "assuming '-no-fast-install' instead" + fast_install=no + ;; + *) no_install=yes ;; + esac + continue + ;; + + -no-undefined) + allow_undefined=no + continue + ;; + + -objectlist) + prev=objectlist + continue + ;; + + -os2dllname) + prev=os2dllname + continue + ;; + + -o) prev=output ;; + + -precious-files-regex) + prev=precious_regex + continue + ;; + + -release) + prev=release + continue + ;; + + -rpath) + prev=rpath + continue + ;; + + -R) + prev=xrpath + continue + ;; + + -R*) + func_stripname '-R' '' "$arg" + dir=$func_stripname_result + # We need an absolute path. + case $dir in + [\\/]* | [A-Za-z]:[\\/]*) ;; + =*) + func_stripname '=' '' "$dir" + dir=$lt_sysroot$func_stripname_result + ;; + *) + func_fatal_error "only absolute run-paths are allowed" + ;; + esac + case "$xrpath " in + *" $dir "*) ;; + *) func_append xrpath " $dir" ;; + esac + continue + ;; + + -shared) + # The effects of -shared are defined in a previous loop. + continue + ;; + + -shrext) + prev=shrext + continue + ;; + + -static | -static-libtool-libs) + # The effects of -static are defined in a previous loop. + # We used to do the same as -all-static on platforms that + # didn't have a PIC flag, but the assumption that the effects + # would be equivalent was wrong. It would break on at least + # Digital Unix and AIX. + continue + ;; + + -thread-safe) + thread_safe=yes + continue + ;; + + -version-info) + prev=vinfo + continue + ;; + + -version-number) + prev=vinfo + vinfo_number=yes + continue + ;; + + -weak) + prev=weak + continue + ;; + + -Wc,*) + func_stripname '-Wc,' '' "$arg" + args=$func_stripname_result + arg= + save_ifs=$IFS; IFS=, + for flag in $args; do + IFS=$save_ifs + func_quote_for_eval "$flag" + func_append arg " $func_quote_for_eval_result" + func_append compiler_flags " $func_quote_for_eval_result" + done + IFS=$save_ifs + func_stripname ' ' '' "$arg" + arg=$func_stripname_result + ;; + + -Wl,*) + func_stripname '-Wl,' '' "$arg" + args=$func_stripname_result + arg= + save_ifs=$IFS; IFS=, + for flag in $args; do + IFS=$save_ifs + func_quote_for_eval "$flag" + func_append arg " $wl$func_quote_for_eval_result" + func_append compiler_flags " $wl$func_quote_for_eval_result" + func_append linker_flags " $func_quote_for_eval_result" + done + IFS=$save_ifs + func_stripname ' ' '' "$arg" + arg=$func_stripname_result + ;; + + -Xcompiler) + prev=xcompiler + continue + ;; + + -Xlinker) + prev=xlinker + continue + ;; + + -XCClinker) + prev=xcclinker + continue + ;; + + # -msg_* for osf cc + -msg_*) + func_quote_for_eval "$arg" + arg=$func_quote_for_eval_result + ;; + + # Flags to be passed through unchanged, with rationale: + # -64, -mips[0-9] enable 64-bit mode for the SGI compiler + # -r[0-9][0-9]* specify processor for the SGI compiler + # -xarch=*, -xtarget=* enable 64-bit mode for the Sun compiler + # +DA*, +DD* enable 64-bit mode for the HP compiler + # -q* compiler args for the IBM compiler + # -m*, -t[45]*, -txscale* architecture-specific flags for GCC + # -F/path path to uninstalled frameworks, gcc on darwin + # -p, -pg, --coverage, -fprofile-* profiling flags for GCC + # -fstack-protector* stack protector flags for GCC + # @file GCC response files + # -tp=* Portland pgcc target processor selection + # --sysroot=* for sysroot support + # -O*, -g*, -flto*, -fwhopr*, -fuse-linker-plugin GCC link-time optimization + # -specs=* GCC specs files + # -stdlib=* select c++ std lib with clang + -64|-mips[0-9]|-r[0-9][0-9]*|-xarch=*|-xtarget=*|+DA*|+DD*|-q*|-m*| \ + -t[45]*|-txscale*|-p|-pg|--coverage|-fprofile-*|-F*|@*|-tp=*|--sysroot=*| \ + -O*|-g*|-flto*|-fwhopr*|-fuse-linker-plugin|-fstack-protector*|-stdlib=*| \ + -specs=*) + func_quote_for_eval "$arg" + arg=$func_quote_for_eval_result + func_append compile_command " $arg" + func_append finalize_command " $arg" + func_append compiler_flags " $arg" + continue + ;; + + -Z*) + if test os2 = "`expr $host : '.*\(os2\)'`"; then + # OS/2 uses -Zxxx to specify OS/2-specific options + compiler_flags="$compiler_flags $arg" + func_append compile_command " $arg" + func_append finalize_command " $arg" + case $arg in + -Zlinker | -Zstack) + prev=xcompiler + ;; + esac + continue + else + # Otherwise treat like 'Some other compiler flag' below + func_quote_for_eval "$arg" + arg=$func_quote_for_eval_result + fi + ;; + + # Some other compiler flag. + -* | +*) + func_quote_for_eval "$arg" + arg=$func_quote_for_eval_result + ;; + + *.$objext) + # A standard object. + func_append objs " $arg" + ;; + + *.lo) + # A libtool-controlled object. + + # Check to see that this really is a libtool object. + if func_lalib_unsafe_p "$arg"; then + pic_object= + non_pic_object= + + # Read the .lo file + func_source "$arg" + + if test -z "$pic_object" || + test -z "$non_pic_object" || + test none = "$pic_object" && + test none = "$non_pic_object"; then + func_fatal_error "cannot find name of object for '$arg'" + fi + + # Extract subdirectory from the argument. + func_dirname "$arg" "/" "" + xdir=$func_dirname_result + + test none = "$pic_object" || { + # Prepend the subdirectory the object is found in. + pic_object=$xdir$pic_object + + if test dlfiles = "$prev"; then + if test yes = "$build_libtool_libs" && test yes = "$dlopen_support"; then + func_append dlfiles " $pic_object" + prev= + continue + else + # If libtool objects are unsupported, then we need to preload. + prev=dlprefiles + fi + fi + + # CHECK ME: I think I busted this. -Ossama + if test dlprefiles = "$prev"; then + # Preload the old-style object. + func_append dlprefiles " $pic_object" + prev= + fi + + # A PIC object. + func_append libobjs " $pic_object" + arg=$pic_object + } + + # Non-PIC object. + if test none != "$non_pic_object"; then + # Prepend the subdirectory the object is found in. + non_pic_object=$xdir$non_pic_object + + # A standard non-PIC object + func_append non_pic_objects " $non_pic_object" + if test -z "$pic_object" || test none = "$pic_object"; then + arg=$non_pic_object + fi + else + # If the PIC object exists, use it instead. + # $xdir was prepended to $pic_object above. + non_pic_object=$pic_object + func_append non_pic_objects " $non_pic_object" + fi + else + # Only an error if not doing a dry-run. + if $opt_dry_run; then + # Extract subdirectory from the argument. + func_dirname "$arg" "/" "" + xdir=$func_dirname_result + + func_lo2o "$arg" + pic_object=$xdir$objdir/$func_lo2o_result + non_pic_object=$xdir$func_lo2o_result + func_append libobjs " $pic_object" + func_append non_pic_objects " $non_pic_object" + else + func_fatal_error "'$arg' is not a valid libtool object" + fi + fi + ;; + + *.$libext) + # An archive. + func_append deplibs " $arg" + func_append old_deplibs " $arg" + continue + ;; + + *.la) + # A libtool-controlled library. + + func_resolve_sysroot "$arg" + if test dlfiles = "$prev"; then + # This library was specified with -dlopen. + func_append dlfiles " $func_resolve_sysroot_result" + prev= + elif test dlprefiles = "$prev"; then + # The library was specified with -dlpreopen. + func_append dlprefiles " $func_resolve_sysroot_result" + prev= + else + func_append deplibs " $func_resolve_sysroot_result" + fi + continue + ;; + + # Some other compiler argument. + *) + # Unknown arguments in both finalize_command and compile_command need + # to be aesthetically quoted because they are evaled later. + func_quote_for_eval "$arg" + arg=$func_quote_for_eval_result + ;; + esac # arg + + # Now actually substitute the argument into the commands. + if test -n "$arg"; then + func_append compile_command " $arg" + func_append finalize_command " $arg" + fi + done # argument parsing loop + + test -n "$prev" && \ + func_fatal_help "the '$prevarg' option requires an argument" + + if test yes = "$export_dynamic" && test -n "$export_dynamic_flag_spec"; then + eval arg=\"$export_dynamic_flag_spec\" + func_append compile_command " $arg" + func_append finalize_command " $arg" + fi + + oldlibs= + # calculate the name of the file, without its directory + func_basename "$output" + outputname=$func_basename_result + libobjs_save=$libobjs + + if test -n "$shlibpath_var"; then + # get the directories listed in $shlibpath_var + eval shlib_search_path=\`\$ECHO \"\$$shlibpath_var\" \| \$SED \'s/:/ /g\'\` + else + shlib_search_path= + fi + eval sys_lib_search_path=\"$sys_lib_search_path_spec\" + eval sys_lib_dlsearch_path=\"$sys_lib_dlsearch_path_spec\" + + # Definition is injected by LT_CONFIG during libtool generation. + func_munge_path_list sys_lib_dlsearch_path "$LT_SYS_LIBRARY_PATH" + + func_dirname "$output" "/" "" + output_objdir=$func_dirname_result$objdir + func_to_tool_file "$output_objdir/" + tool_output_objdir=$func_to_tool_file_result + # Create the object directory. + func_mkdir_p "$output_objdir" + + # Determine the type of output + case $output in + "") + func_fatal_help "you must specify an output file" + ;; + *.$libext) linkmode=oldlib ;; + *.lo | *.$objext) linkmode=obj ;; + *.la) linkmode=lib ;; + *) linkmode=prog ;; # Anything else should be a program. + esac + + specialdeplibs= + + libs= + # Find all interdependent deplibs by searching for libraries + # that are linked more than once (e.g. -la -lb -la) + for deplib in $deplibs; do + if $opt_preserve_dup_deps; then + case "$libs " in + *" $deplib "*) func_append specialdeplibs " $deplib" ;; + esac + fi + func_append libs " $deplib" + done + + if test lib = "$linkmode"; then + libs="$predeps $libs $compiler_lib_search_path $postdeps" + + # Compute libraries that are listed more than once in $predeps + # $postdeps and mark them as special (i.e., whose duplicates are + # not to be eliminated). + pre_post_deps= + if $opt_duplicate_compiler_generated_deps; then + for pre_post_dep in $predeps $postdeps; do + case "$pre_post_deps " in + *" $pre_post_dep "*) func_append specialdeplibs " $pre_post_deps" ;; + esac + func_append pre_post_deps " $pre_post_dep" + done + fi + pre_post_deps= + fi + + deplibs= + newdependency_libs= + newlib_search_path= + need_relink=no # whether we're linking any uninstalled libtool libraries + notinst_deplibs= # not-installed libtool libraries + notinst_path= # paths that contain not-installed libtool libraries + + case $linkmode in + lib) + passes="conv dlpreopen link" + for file in $dlfiles $dlprefiles; do + case $file in + *.la) ;; + *) + func_fatal_help "libraries can '-dlopen' only libtool libraries: $file" + ;; + esac + done + ;; + prog) + compile_deplibs= + finalize_deplibs= + alldeplibs=false + newdlfiles= + newdlprefiles= + passes="conv scan dlopen dlpreopen link" + ;; + *) passes="conv" + ;; + esac + + for pass in $passes; do + # The preopen pass in lib mode reverses $deplibs; put it back here + # so that -L comes before libs that need it for instance... + if test lib,link = "$linkmode,$pass"; then + ## FIXME: Find the place where the list is rebuilt in the wrong + ## order, and fix it there properly + tmp_deplibs= + for deplib in $deplibs; do + tmp_deplibs="$deplib $tmp_deplibs" + done + deplibs=$tmp_deplibs + fi + + if test lib,link = "$linkmode,$pass" || + test prog,scan = "$linkmode,$pass"; then + libs=$deplibs + deplibs= + fi + if test prog = "$linkmode"; then + case $pass in + dlopen) libs=$dlfiles ;; + dlpreopen) libs=$dlprefiles ;; + link) libs="$deplibs %DEPLIBS% $dependency_libs" ;; + esac + fi + if test lib,dlpreopen = "$linkmode,$pass"; then + # Collect and forward deplibs of preopened libtool libs + for lib in $dlprefiles; do + # Ignore non-libtool-libs + dependency_libs= + func_resolve_sysroot "$lib" + case $lib in + *.la) func_source "$func_resolve_sysroot_result" ;; + esac + + # Collect preopened libtool deplibs, except any this library + # has declared as weak libs + for deplib in $dependency_libs; do + func_basename "$deplib" + deplib_base=$func_basename_result + case " $weak_libs " in + *" $deplib_base "*) ;; + *) func_append deplibs " $deplib" ;; + esac + done + done + libs=$dlprefiles + fi + if test dlopen = "$pass"; then + # Collect dlpreopened libraries + save_deplibs=$deplibs + deplibs= + fi + + for deplib in $libs; do + lib= + found=false + case $deplib in + -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \ + |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*) + if test prog,link = "$linkmode,$pass"; then + compile_deplibs="$deplib $compile_deplibs" + finalize_deplibs="$deplib $finalize_deplibs" + else + func_append compiler_flags " $deplib" + if test lib = "$linkmode"; then + case "$new_inherited_linker_flags " in + *" $deplib "*) ;; + * ) func_append new_inherited_linker_flags " $deplib" ;; + esac + fi + fi + continue + ;; + -l*) + if test lib != "$linkmode" && test prog != "$linkmode"; then + func_warning "'-l' is ignored for archives/objects" + continue + fi + func_stripname '-l' '' "$deplib" + name=$func_stripname_result + if test lib = "$linkmode"; then + searchdirs="$newlib_search_path $lib_search_path $compiler_lib_search_dirs $sys_lib_search_path $shlib_search_path" + else + searchdirs="$newlib_search_path $lib_search_path $sys_lib_search_path $shlib_search_path" + fi + for searchdir in $searchdirs; do + for search_ext in .la $std_shrext .so .a; do + # Search the libtool library + lib=$searchdir/lib$name$search_ext + if test -f "$lib"; then + if test .la = "$search_ext"; then + found=: + else + found=false + fi + break 2 + fi + done + done + if $found; then + # deplib is a libtool library + # If $allow_libtool_libs_with_static_runtimes && $deplib is a stdlib, + # We need to do some special things here, and not later. + if test yes = "$allow_libtool_libs_with_static_runtimes"; then + case " $predeps $postdeps " in + *" $deplib "*) + if func_lalib_p "$lib"; then + library_names= + old_library= + func_source "$lib" + for l in $old_library $library_names; do + ll=$l + done + if test "X$ll" = "X$old_library"; then # only static version available + found=false + func_dirname "$lib" "" "." + ladir=$func_dirname_result + lib=$ladir/$old_library + if test prog,link = "$linkmode,$pass"; then + compile_deplibs="$deplib $compile_deplibs" + finalize_deplibs="$deplib $finalize_deplibs" + else + deplibs="$deplib $deplibs" + test lib = "$linkmode" && newdependency_libs="$deplib $newdependency_libs" + fi + continue + fi + fi + ;; + *) ;; + esac + fi + else + # deplib doesn't seem to be a libtool library + if test prog,link = "$linkmode,$pass"; then + compile_deplibs="$deplib $compile_deplibs" + finalize_deplibs="$deplib $finalize_deplibs" + else + deplibs="$deplib $deplibs" + test lib = "$linkmode" && newdependency_libs="$deplib $newdependency_libs" + fi + continue + fi + ;; # -l + *.ltframework) + if test prog,link = "$linkmode,$pass"; then + compile_deplibs="$deplib $compile_deplibs" + finalize_deplibs="$deplib $finalize_deplibs" + else + deplibs="$deplib $deplibs" + if test lib = "$linkmode"; then + case "$new_inherited_linker_flags " in + *" $deplib "*) ;; + * ) func_append new_inherited_linker_flags " $deplib" ;; + esac + fi + fi + continue + ;; + -L*) + case $linkmode in + lib) + deplibs="$deplib $deplibs" + test conv = "$pass" && continue + newdependency_libs="$deplib $newdependency_libs" + func_stripname '-L' '' "$deplib" + func_resolve_sysroot "$func_stripname_result" + func_append newlib_search_path " $func_resolve_sysroot_result" + ;; + prog) + if test conv = "$pass"; then + deplibs="$deplib $deplibs" + continue + fi + if test scan = "$pass"; then + deplibs="$deplib $deplibs" + else + compile_deplibs="$deplib $compile_deplibs" + finalize_deplibs="$deplib $finalize_deplibs" + fi + func_stripname '-L' '' "$deplib" + func_resolve_sysroot "$func_stripname_result" + func_append newlib_search_path " $func_resolve_sysroot_result" + ;; + *) + func_warning "'-L' is ignored for archives/objects" + ;; + esac # linkmode + continue + ;; # -L + -R*) + if test link = "$pass"; then + func_stripname '-R' '' "$deplib" + func_resolve_sysroot "$func_stripname_result" + dir=$func_resolve_sysroot_result + # Make sure the xrpath contains only unique directories. + case "$xrpath " in + *" $dir "*) ;; + *) func_append xrpath " $dir" ;; + esac + fi + deplibs="$deplib $deplibs" + continue + ;; + *.la) + func_resolve_sysroot "$deplib" + lib=$func_resolve_sysroot_result + ;; + *.$libext) + if test conv = "$pass"; then + deplibs="$deplib $deplibs" + continue + fi + case $linkmode in + lib) + # Linking convenience modules into shared libraries is allowed, + # but linking other static libraries is non-portable. + case " $dlpreconveniencelibs " in + *" $deplib "*) ;; + *) + valid_a_lib=false + case $deplibs_check_method in + match_pattern*) + set dummy $deplibs_check_method; shift + match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"` + if eval "\$ECHO \"$deplib\"" 2>/dev/null | $SED 10q \ + | $EGREP "$match_pattern_regex" > /dev/null; then + valid_a_lib=: + fi + ;; + pass_all) + valid_a_lib=: + ;; + esac + if $valid_a_lib; then + echo + $ECHO "*** Warning: Linking the shared library $output against the" + $ECHO "*** static library $deplib is not portable!" + deplibs="$deplib $deplibs" + else + echo + $ECHO "*** Warning: Trying to link with static lib archive $deplib." + echo "*** I have the capability to make that library automatically link in when" + echo "*** you link to this library. But I can only do this if you have a" + echo "*** shared version of the library, which you do not appear to have" + echo "*** because the file extensions .$libext of this argument makes me believe" + echo "*** that it is just a static archive that I should not use here." + fi + ;; + esac + continue + ;; + prog) + if test link != "$pass"; then + deplibs="$deplib $deplibs" + else + compile_deplibs="$deplib $compile_deplibs" + finalize_deplibs="$deplib $finalize_deplibs" + fi + continue + ;; + esac # linkmode + ;; # *.$libext + *.lo | *.$objext) + if test conv = "$pass"; then + deplibs="$deplib $deplibs" + elif test prog = "$linkmode"; then + if test dlpreopen = "$pass" || test yes != "$dlopen_support" || test no = "$build_libtool_libs"; then + # If there is no dlopen support or we're linking statically, + # we need to preload. + func_append newdlprefiles " $deplib" + compile_deplibs="$deplib $compile_deplibs" + finalize_deplibs="$deplib $finalize_deplibs" + else + func_append newdlfiles " $deplib" + fi + fi + continue + ;; + %DEPLIBS%) + alldeplibs=: + continue + ;; + esac # case $deplib + + $found || test -f "$lib" \ + || func_fatal_error "cannot find the library '$lib' or unhandled argument '$deplib'" + + # Check to see that this really is a libtool archive. + func_lalib_unsafe_p "$lib" \ + || func_fatal_error "'$lib' is not a valid libtool archive" + + func_dirname "$lib" "" "." + ladir=$func_dirname_result + + dlname= + dlopen= + dlpreopen= + libdir= + library_names= + old_library= + inherited_linker_flags= + # If the library was installed with an old release of libtool, + # it will not redefine variables installed, or shouldnotlink + installed=yes + shouldnotlink=no + avoidtemprpath= + + + # Read the .la file + func_source "$lib" + + # Convert "-framework foo" to "foo.ltframework" + if test -n "$inherited_linker_flags"; then + tmp_inherited_linker_flags=`$ECHO "$inherited_linker_flags" | $SED 's/-framework \([^ $]*\)/\1.ltframework/g'` + for tmp_inherited_linker_flag in $tmp_inherited_linker_flags; do + case " $new_inherited_linker_flags " in + *" $tmp_inherited_linker_flag "*) ;; + *) func_append new_inherited_linker_flags " $tmp_inherited_linker_flag";; + esac + done + fi + dependency_libs=`$ECHO " $dependency_libs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` + if test lib,link = "$linkmode,$pass" || + test prog,scan = "$linkmode,$pass" || + { test prog != "$linkmode" && test lib != "$linkmode"; }; then + test -n "$dlopen" && func_append dlfiles " $dlopen" + test -n "$dlpreopen" && func_append dlprefiles " $dlpreopen" + fi + + if test conv = "$pass"; then + # Only check for convenience libraries + deplibs="$lib $deplibs" + if test -z "$libdir"; then + if test -z "$old_library"; then + func_fatal_error "cannot find name of link library for '$lib'" + fi + # It is a libtool convenience library, so add in its objects. + func_append convenience " $ladir/$objdir/$old_library" + func_append old_convenience " $ladir/$objdir/$old_library" + elif test prog != "$linkmode" && test lib != "$linkmode"; then + func_fatal_error "'$lib' is not a convenience library" + fi + tmp_libs= + for deplib in $dependency_libs; do + deplibs="$deplib $deplibs" + if $opt_preserve_dup_deps; then + case "$tmp_libs " in + *" $deplib "*) func_append specialdeplibs " $deplib" ;; + esac + fi + func_append tmp_libs " $deplib" + done + continue + fi # $pass = conv + + + # Get the name of the library we link against. + linklib= + if test -n "$old_library" && + { test yes = "$prefer_static_libs" || + test built,no = "$prefer_static_libs,$installed"; }; then + linklib=$old_library + else + for l in $old_library $library_names; do + linklib=$l + done + fi + if test -z "$linklib"; then + func_fatal_error "cannot find name of link library for '$lib'" + fi + + # This library was specified with -dlopen. + if test dlopen = "$pass"; then + test -z "$libdir" \ + && func_fatal_error "cannot -dlopen a convenience library: '$lib'" + if test -z "$dlname" || + test yes != "$dlopen_support" || + test no = "$build_libtool_libs" + then + # If there is no dlname, no dlopen support or we're linking + # statically, we need to preload. We also need to preload any + # dependent libraries so libltdl's deplib preloader doesn't + # bomb out in the load deplibs phase. + func_append dlprefiles " $lib $dependency_libs" + else + func_append newdlfiles " $lib" + fi + continue + fi # $pass = dlopen + + # We need an absolute path. + case $ladir in + [\\/]* | [A-Za-z]:[\\/]*) abs_ladir=$ladir ;; + *) + abs_ladir=`cd "$ladir" && pwd` + if test -z "$abs_ladir"; then + func_warning "cannot determine absolute directory name of '$ladir'" + func_warning "passing it literally to the linker, although it might fail" + abs_ladir=$ladir + fi + ;; + esac + func_basename "$lib" + laname=$func_basename_result + + # Find the relevant object directory and library name. + if test yes = "$installed"; then + if test ! -f "$lt_sysroot$libdir/$linklib" && test -f "$abs_ladir/$linklib"; then + func_warning "library '$lib' was moved." + dir=$ladir + absdir=$abs_ladir + libdir=$abs_ladir + else + dir=$lt_sysroot$libdir + absdir=$lt_sysroot$libdir + fi + test yes = "$hardcode_automatic" && avoidtemprpath=yes + else + if test ! -f "$ladir/$objdir/$linklib" && test -f "$abs_ladir/$linklib"; then + dir=$ladir + absdir=$abs_ladir + # Remove this search path later + func_append notinst_path " $abs_ladir" + else + dir=$ladir/$objdir + absdir=$abs_ladir/$objdir + # Remove this search path later + func_append notinst_path " $abs_ladir" + fi + fi # $installed = yes + func_stripname 'lib' '.la' "$laname" + name=$func_stripname_result + + # This library was specified with -dlpreopen. + if test dlpreopen = "$pass"; then + if test -z "$libdir" && test prog = "$linkmode"; then + func_fatal_error "only libraries may -dlpreopen a convenience library: '$lib'" + fi + case $host in + # special handling for platforms with PE-DLLs. + *cygwin* | *mingw* | *cegcc* ) + # Linker will automatically link against shared library if both + # static and shared are present. Therefore, ensure we extract + # symbols from the import library if a shared library is present + # (otherwise, the dlopen module name will be incorrect). We do + # this by putting the import library name into $newdlprefiles. + # We recover the dlopen module name by 'saving' the la file + # name in a special purpose variable, and (later) extracting the + # dlname from the la file. + if test -n "$dlname"; then + func_tr_sh "$dir/$linklib" + eval "libfile_$func_tr_sh_result=\$abs_ladir/\$laname" + func_append newdlprefiles " $dir/$linklib" + else + func_append newdlprefiles " $dir/$old_library" + # Keep a list of preopened convenience libraries to check + # that they are being used correctly in the link pass. + test -z "$libdir" && \ + func_append dlpreconveniencelibs " $dir/$old_library" + fi + ;; + * ) + # Prefer using a static library (so that no silly _DYNAMIC symbols + # are required to link). + if test -n "$old_library"; then + func_append newdlprefiles " $dir/$old_library" + # Keep a list of preopened convenience libraries to check + # that they are being used correctly in the link pass. + test -z "$libdir" && \ + func_append dlpreconveniencelibs " $dir/$old_library" + # Otherwise, use the dlname, so that lt_dlopen finds it. + elif test -n "$dlname"; then + func_append newdlprefiles " $dir/$dlname" + else + func_append newdlprefiles " $dir/$linklib" + fi + ;; + esac + fi # $pass = dlpreopen + + if test -z "$libdir"; then + # Link the convenience library + if test lib = "$linkmode"; then + deplibs="$dir/$old_library $deplibs" + elif test prog,link = "$linkmode,$pass"; then + compile_deplibs="$dir/$old_library $compile_deplibs" + finalize_deplibs="$dir/$old_library $finalize_deplibs" + else + deplibs="$lib $deplibs" # used for prog,scan pass + fi + continue + fi + + + if test prog = "$linkmode" && test link != "$pass"; then + func_append newlib_search_path " $ladir" + deplibs="$lib $deplibs" + + linkalldeplibs=false + if test no != "$link_all_deplibs" || test -z "$library_names" || + test no = "$build_libtool_libs"; then + linkalldeplibs=: + fi + + tmp_libs= + for deplib in $dependency_libs; do + case $deplib in + -L*) func_stripname '-L' '' "$deplib" + func_resolve_sysroot "$func_stripname_result" + func_append newlib_search_path " $func_resolve_sysroot_result" + ;; + esac + # Need to link against all dependency_libs? + if $linkalldeplibs; then + deplibs="$deplib $deplibs" + else + # Need to hardcode shared library paths + # or/and link against static libraries + newdependency_libs="$deplib $newdependency_libs" + fi + if $opt_preserve_dup_deps; then + case "$tmp_libs " in + *" $deplib "*) func_append specialdeplibs " $deplib" ;; + esac + fi + func_append tmp_libs " $deplib" + done # for deplib + continue + fi # $linkmode = prog... + + if test prog,link = "$linkmode,$pass"; then + if test -n "$library_names" && + { { test no = "$prefer_static_libs" || + test built,yes = "$prefer_static_libs,$installed"; } || + test -z "$old_library"; }; then + # We need to hardcode the library path + if test -n "$shlibpath_var" && test -z "$avoidtemprpath"; then + # Make sure the rpath contains only unique directories. + case $temp_rpath: in + *"$absdir:"*) ;; + *) func_append temp_rpath "$absdir:" ;; + esac + fi + + # Hardcode the library path. + # Skip directories that are in the system default run-time + # search path. + case " $sys_lib_dlsearch_path " in + *" $absdir "*) ;; + *) + case "$compile_rpath " in + *" $absdir "*) ;; + *) func_append compile_rpath " $absdir" ;; + esac + ;; + esac + case " $sys_lib_dlsearch_path " in + *" $libdir "*) ;; + *) + case "$finalize_rpath " in + *" $libdir "*) ;; + *) func_append finalize_rpath " $libdir" ;; + esac + ;; + esac + fi # $linkmode,$pass = prog,link... + + if $alldeplibs && + { test pass_all = "$deplibs_check_method" || + { test yes = "$build_libtool_libs" && + test -n "$library_names"; }; }; then + # We only need to search for static libraries + continue + fi + fi + + link_static=no # Whether the deplib will be linked statically + use_static_libs=$prefer_static_libs + if test built = "$use_static_libs" && test yes = "$installed"; then + use_static_libs=no + fi + if test -n "$library_names" && + { test no = "$use_static_libs" || test -z "$old_library"; }; then + case $host in + *cygwin* | *mingw* | *cegcc* | *os2*) + # No point in relinking DLLs because paths are not encoded + func_append notinst_deplibs " $lib" + need_relink=no + ;; + *) + if test no = "$installed"; then + func_append notinst_deplibs " $lib" + need_relink=yes + fi + ;; + esac + # This is a shared library + + # Warn about portability, can't link against -module's on some + # systems (darwin). Don't bleat about dlopened modules though! + dlopenmodule= + for dlpremoduletest in $dlprefiles; do + if test "X$dlpremoduletest" = "X$lib"; then + dlopenmodule=$dlpremoduletest + break + fi + done + if test -z "$dlopenmodule" && test yes = "$shouldnotlink" && test link = "$pass"; then + echo + if test prog = "$linkmode"; then + $ECHO "*** Warning: Linking the executable $output against the loadable module" + else + $ECHO "*** Warning: Linking the shared library $output against the loadable module" + fi + $ECHO "*** $linklib is not portable!" + fi + if test lib = "$linkmode" && + test yes = "$hardcode_into_libs"; then + # Hardcode the library path. + # Skip directories that are in the system default run-time + # search path. + case " $sys_lib_dlsearch_path " in + *" $absdir "*) ;; + *) + case "$compile_rpath " in + *" $absdir "*) ;; + *) func_append compile_rpath " $absdir" ;; + esac + ;; + esac + case " $sys_lib_dlsearch_path " in + *" $libdir "*) ;; + *) + case "$finalize_rpath " in + *" $libdir "*) ;; + *) func_append finalize_rpath " $libdir" ;; + esac + ;; + esac + fi + + if test -n "$old_archive_from_expsyms_cmds"; then + # figure out the soname + set dummy $library_names + shift + realname=$1 + shift + libname=`eval "\\$ECHO \"$libname_spec\""` + # use dlname if we got it. it's perfectly good, no? + if test -n "$dlname"; then + soname=$dlname + elif test -n "$soname_spec"; then + # bleh windows + case $host in + *cygwin* | mingw* | *cegcc* | *os2*) + func_arith $current - $age + major=$func_arith_result + versuffix=-$major + ;; + esac + eval soname=\"$soname_spec\" + else + soname=$realname + fi + + # Make a new name for the extract_expsyms_cmds to use + soroot=$soname + func_basename "$soroot" + soname=$func_basename_result + func_stripname 'lib' '.dll' "$soname" + newlib=libimp-$func_stripname_result.a + + # If the library has no export list, then create one now + if test -f "$output_objdir/$soname-def"; then : + else + func_verbose "extracting exported symbol list from '$soname'" + func_execute_cmds "$extract_expsyms_cmds" 'exit $?' + fi + + # Create $newlib + if test -f "$output_objdir/$newlib"; then :; else + func_verbose "generating import library for '$soname'" + func_execute_cmds "$old_archive_from_expsyms_cmds" 'exit $?' + fi + # make sure the library variables are pointing to the new library + dir=$output_objdir + linklib=$newlib + fi # test -n "$old_archive_from_expsyms_cmds" + + if test prog = "$linkmode" || test relink != "$opt_mode"; then + add_shlibpath= + add_dir= + add= + lib_linked=yes + case $hardcode_action in + immediate | unsupported) + if test no = "$hardcode_direct"; then + add=$dir/$linklib + case $host in + *-*-sco3.2v5.0.[024]*) add_dir=-L$dir ;; + *-*-sysv4*uw2*) add_dir=-L$dir ;; + *-*-sysv5OpenUNIX* | *-*-sysv5UnixWare7.[01].[10]* | \ + *-*-unixware7*) add_dir=-L$dir ;; + *-*-darwin* ) + # if the lib is a (non-dlopened) module then we cannot + # link against it, someone is ignoring the earlier warnings + if /usr/bin/file -L $add 2> /dev/null | + $GREP ": [^:]* bundle" >/dev/null; then + if test "X$dlopenmodule" != "X$lib"; then + $ECHO "*** Warning: lib $linklib is a module, not a shared library" + if test -z "$old_library"; then + echo + echo "*** And there doesn't seem to be a static archive available" + echo "*** The link will probably fail, sorry" + else + add=$dir/$old_library + fi + elif test -n "$old_library"; then + add=$dir/$old_library + fi + fi + esac + elif test no = "$hardcode_minus_L"; then + case $host in + *-*-sunos*) add_shlibpath=$dir ;; + esac + add_dir=-L$dir + add=-l$name + elif test no = "$hardcode_shlibpath_var"; then + add_shlibpath=$dir + add=-l$name + else + lib_linked=no + fi + ;; + relink) + if test yes = "$hardcode_direct" && + test no = "$hardcode_direct_absolute"; then + add=$dir/$linklib + elif test yes = "$hardcode_minus_L"; then + add_dir=-L$absdir + # Try looking first in the location we're being installed to. + if test -n "$inst_prefix_dir"; then + case $libdir in + [\\/]*) + func_append add_dir " -L$inst_prefix_dir$libdir" + ;; + esac + fi + add=-l$name + elif test yes = "$hardcode_shlibpath_var"; then + add_shlibpath=$dir + add=-l$name + else + lib_linked=no + fi + ;; + *) lib_linked=no ;; + esac + + if test yes != "$lib_linked"; then + func_fatal_configuration "unsupported hardcode properties" + fi + + if test -n "$add_shlibpath"; then + case :$compile_shlibpath: in + *":$add_shlibpath:"*) ;; + *) func_append compile_shlibpath "$add_shlibpath:" ;; + esac + fi + if test prog = "$linkmode"; then + test -n "$add_dir" && compile_deplibs="$add_dir $compile_deplibs" + test -n "$add" && compile_deplibs="$add $compile_deplibs" + else + test -n "$add_dir" && deplibs="$add_dir $deplibs" + test -n "$add" && deplibs="$add $deplibs" + if test yes != "$hardcode_direct" && + test yes != "$hardcode_minus_L" && + test yes = "$hardcode_shlibpath_var"; then + case :$finalize_shlibpath: in + *":$libdir:"*) ;; + *) func_append finalize_shlibpath "$libdir:" ;; + esac + fi + fi + fi + + if test prog = "$linkmode" || test relink = "$opt_mode"; then + add_shlibpath= + add_dir= + add= + # Finalize command for both is simple: just hardcode it. + if test yes = "$hardcode_direct" && + test no = "$hardcode_direct_absolute"; then + add=$libdir/$linklib + elif test yes = "$hardcode_minus_L"; then + add_dir=-L$libdir + add=-l$name + elif test yes = "$hardcode_shlibpath_var"; then + case :$finalize_shlibpath: in + *":$libdir:"*) ;; + *) func_append finalize_shlibpath "$libdir:" ;; + esac + add=-l$name + elif test yes = "$hardcode_automatic"; then + if test -n "$inst_prefix_dir" && + test -f "$inst_prefix_dir$libdir/$linklib"; then + add=$inst_prefix_dir$libdir/$linklib + else + add=$libdir/$linklib + fi + else + # We cannot seem to hardcode it, guess we'll fake it. + add_dir=-L$libdir + # Try looking first in the location we're being installed to. + if test -n "$inst_prefix_dir"; then + case $libdir in + [\\/]*) + func_append add_dir " -L$inst_prefix_dir$libdir" + ;; + esac + fi + add=-l$name + fi + + if test prog = "$linkmode"; then + test -n "$add_dir" && finalize_deplibs="$add_dir $finalize_deplibs" + test -n "$add" && finalize_deplibs="$add $finalize_deplibs" + else + test -n "$add_dir" && deplibs="$add_dir $deplibs" + test -n "$add" && deplibs="$add $deplibs" + fi + fi + elif test prog = "$linkmode"; then + # Here we assume that one of hardcode_direct or hardcode_minus_L + # is not unsupported. This is valid on all known static and + # shared platforms. + if test unsupported != "$hardcode_direct"; then + test -n "$old_library" && linklib=$old_library + compile_deplibs="$dir/$linklib $compile_deplibs" + finalize_deplibs="$dir/$linklib $finalize_deplibs" + else + compile_deplibs="-l$name -L$dir $compile_deplibs" + finalize_deplibs="-l$name -L$dir $finalize_deplibs" + fi + elif test yes = "$build_libtool_libs"; then + # Not a shared library + if test pass_all != "$deplibs_check_method"; then + # We're trying link a shared library against a static one + # but the system doesn't support it. + + # Just print a warning and add the library to dependency_libs so + # that the program can be linked against the static library. + echo + $ECHO "*** Warning: This system cannot link to static lib archive $lib." + echo "*** I have the capability to make that library automatically link in when" + echo "*** you link to this library. But I can only do this if you have a" + echo "*** shared version of the library, which you do not appear to have." + if test yes = "$module"; then + echo "*** But as you try to build a module library, libtool will still create " + echo "*** a static module, that should work as long as the dlopening application" + echo "*** is linked with the -dlopen flag to resolve symbols at runtime." + if test -z "$global_symbol_pipe"; then + echo + echo "*** However, this would only work if libtool was able to extract symbol" + echo "*** lists from a program, using 'nm' or equivalent, but libtool could" + echo "*** not find such a program. So, this module is probably useless." + echo "*** 'nm' from GNU binutils and a full rebuild may help." + fi + if test no = "$build_old_libs"; then + build_libtool_libs=module + build_old_libs=yes + else + build_libtool_libs=no + fi + fi + else + deplibs="$dir/$old_library $deplibs" + link_static=yes + fi + fi # link shared/static library? + + if test lib = "$linkmode"; then + if test -n "$dependency_libs" && + { test yes != "$hardcode_into_libs" || + test yes = "$build_old_libs" || + test yes = "$link_static"; }; then + # Extract -R from dependency_libs + temp_deplibs= + for libdir in $dependency_libs; do + case $libdir in + -R*) func_stripname '-R' '' "$libdir" + temp_xrpath=$func_stripname_result + case " $xrpath " in + *" $temp_xrpath "*) ;; + *) func_append xrpath " $temp_xrpath";; + esac;; + *) func_append temp_deplibs " $libdir";; + esac + done + dependency_libs=$temp_deplibs + fi + + func_append newlib_search_path " $absdir" + # Link against this library + test no = "$link_static" && newdependency_libs="$abs_ladir/$laname $newdependency_libs" + # ... and its dependency_libs + tmp_libs= + for deplib in $dependency_libs; do + newdependency_libs="$deplib $newdependency_libs" + case $deplib in + -L*) func_stripname '-L' '' "$deplib" + func_resolve_sysroot "$func_stripname_result";; + *) func_resolve_sysroot "$deplib" ;; + esac + if $opt_preserve_dup_deps; then + case "$tmp_libs " in + *" $func_resolve_sysroot_result "*) + func_append specialdeplibs " $func_resolve_sysroot_result" ;; + esac + fi + func_append tmp_libs " $func_resolve_sysroot_result" + done + + if test no != "$link_all_deplibs"; then + # Add the search paths of all dependency libraries + for deplib in $dependency_libs; do + path= + case $deplib in + -L*) path=$deplib ;; + *.la) + func_resolve_sysroot "$deplib" + deplib=$func_resolve_sysroot_result + func_dirname "$deplib" "" "." + dir=$func_dirname_result + # We need an absolute path. + case $dir in + [\\/]* | [A-Za-z]:[\\/]*) absdir=$dir ;; + *) + absdir=`cd "$dir" && pwd` + if test -z "$absdir"; then + func_warning "cannot determine absolute directory name of '$dir'" + absdir=$dir + fi + ;; + esac + if $GREP "^installed=no" $deplib > /dev/null; then + case $host in + *-*-darwin*) + depdepl= + eval deplibrary_names=`$SED -n -e 's/^library_names=\(.*\)$/\1/p' $deplib` + if test -n "$deplibrary_names"; then + for tmp in $deplibrary_names; do + depdepl=$tmp + done + if test -f "$absdir/$objdir/$depdepl"; then + depdepl=$absdir/$objdir/$depdepl + darwin_install_name=`$OTOOL -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'` + if test -z "$darwin_install_name"; then + darwin_install_name=`$OTOOL64 -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'` + fi + func_append compiler_flags " $wl-dylib_file $wl$darwin_install_name:$depdepl" + func_append linker_flags " -dylib_file $darwin_install_name:$depdepl" + path= + fi + fi + ;; + *) + path=-L$absdir/$objdir + ;; + esac + else + eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $deplib` + test -z "$libdir" && \ + func_fatal_error "'$deplib' is not a valid libtool archive" + test "$absdir" != "$libdir" && \ + func_warning "'$deplib' seems to be moved" + + path=-L$absdir + fi + ;; + esac + case " $deplibs " in + *" $path "*) ;; + *) deplibs="$path $deplibs" ;; + esac + done + fi # link_all_deplibs != no + fi # linkmode = lib + done # for deplib in $libs + if test link = "$pass"; then + if test prog = "$linkmode"; then + compile_deplibs="$new_inherited_linker_flags $compile_deplibs" + finalize_deplibs="$new_inherited_linker_flags $finalize_deplibs" + else + compiler_flags="$compiler_flags "`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` + fi + fi + dependency_libs=$newdependency_libs + if test dlpreopen = "$pass"; then + # Link the dlpreopened libraries before other libraries + for deplib in $save_deplibs; do + deplibs="$deplib $deplibs" + done + fi + if test dlopen != "$pass"; then + test conv = "$pass" || { + # Make sure lib_search_path contains only unique directories. + lib_search_path= + for dir in $newlib_search_path; do + case "$lib_search_path " in + *" $dir "*) ;; + *) func_append lib_search_path " $dir" ;; + esac + done + newlib_search_path= + } + + if test prog,link = "$linkmode,$pass"; then + vars="compile_deplibs finalize_deplibs" + else + vars=deplibs + fi + for var in $vars dependency_libs; do + # Add libraries to $var in reverse order + eval tmp_libs=\"\$$var\" + new_libs= + for deplib in $tmp_libs; do + # FIXME: Pedantically, this is the right thing to do, so + # that some nasty dependency loop isn't accidentally + # broken: + #new_libs="$deplib $new_libs" + # Pragmatically, this seems to cause very few problems in + # practice: + case $deplib in + -L*) new_libs="$deplib $new_libs" ;; + -R*) ;; + *) + # And here is the reason: when a library appears more + # than once as an explicit dependence of a library, or + # is implicitly linked in more than once by the + # compiler, it is considered special, and multiple + # occurrences thereof are not removed. Compare this + # with having the same library being listed as a + # dependency of multiple other libraries: in this case, + # we know (pedantically, we assume) the library does not + # need to be listed more than once, so we keep only the + # last copy. This is not always right, but it is rare + # enough that we require users that really mean to play + # such unportable linking tricks to link the library + # using -Wl,-lname, so that libtool does not consider it + # for duplicate removal. + case " $specialdeplibs " in + *" $deplib "*) new_libs="$deplib $new_libs" ;; + *) + case " $new_libs " in + *" $deplib "*) ;; + *) new_libs="$deplib $new_libs" ;; + esac + ;; + esac + ;; + esac + done + tmp_libs= + for deplib in $new_libs; do + case $deplib in + -L*) + case " $tmp_libs " in + *" $deplib "*) ;; + *) func_append tmp_libs " $deplib" ;; + esac + ;; + *) func_append tmp_libs " $deplib" ;; + esac + done + eval $var=\"$tmp_libs\" + done # for var + fi + + # Add Sun CC postdeps if required: + test CXX = "$tagname" && { + case $host_os in + linux*) + case `$CC -V 2>&1 | sed 5q` in + *Sun\ C*) # Sun C++ 5.9 + func_suncc_cstd_abi + + if test no != "$suncc_use_cstd_abi"; then + func_append postdeps ' -library=Cstd -library=Crun' + fi + ;; + esac + ;; + + solaris*) + func_cc_basename "$CC" + case $func_cc_basename_result in + CC* | sunCC*) + func_suncc_cstd_abi + + if test no != "$suncc_use_cstd_abi"; then + func_append postdeps ' -library=Cstd -library=Crun' + fi + ;; + esac + ;; + esac + } + + # Last step: remove runtime libs from dependency_libs + # (they stay in deplibs) + tmp_libs= + for i in $dependency_libs; do + case " $predeps $postdeps $compiler_lib_search_path " in + *" $i "*) + i= + ;; + esac + if test -n "$i"; then + func_append tmp_libs " $i" + fi + done + dependency_libs=$tmp_libs + done # for pass + if test prog = "$linkmode"; then + dlfiles=$newdlfiles + fi + if test prog = "$linkmode" || test lib = "$linkmode"; then + dlprefiles=$newdlprefiles + fi + + case $linkmode in + oldlib) + if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then + func_warning "'-dlopen' is ignored for archives" + fi + + case " $deplibs" in + *\ -l* | *\ -L*) + func_warning "'-l' and '-L' are ignored for archives" ;; + esac + + test -n "$rpath" && \ + func_warning "'-rpath' is ignored for archives" + + test -n "$xrpath" && \ + func_warning "'-R' is ignored for archives" + + test -n "$vinfo" && \ + func_warning "'-version-info/-version-number' is ignored for archives" + + test -n "$release" && \ + func_warning "'-release' is ignored for archives" + + test -n "$export_symbols$export_symbols_regex" && \ + func_warning "'-export-symbols' is ignored for archives" + + # Now set the variables for building old libraries. + build_libtool_libs=no + oldlibs=$output + func_append objs "$old_deplibs" + ;; + + lib) + # Make sure we only generate libraries of the form 'libNAME.la'. + case $outputname in + lib*) + func_stripname 'lib' '.la' "$outputname" + name=$func_stripname_result + eval shared_ext=\"$shrext_cmds\" + eval libname=\"$libname_spec\" + ;; + *) + test no = "$module" \ + && func_fatal_help "libtool library '$output' must begin with 'lib'" + + if test no != "$need_lib_prefix"; then + # Add the "lib" prefix for modules if required + func_stripname '' '.la' "$outputname" + name=$func_stripname_result + eval shared_ext=\"$shrext_cmds\" + eval libname=\"$libname_spec\" + else + func_stripname '' '.la' "$outputname" + libname=$func_stripname_result + fi + ;; + esac + + if test -n "$objs"; then + if test pass_all != "$deplibs_check_method"; then + func_fatal_error "cannot build libtool library '$output' from non-libtool objects on this host:$objs" + else + echo + $ECHO "*** Warning: Linking the shared library $output against the non-libtool" + $ECHO "*** objects $objs is not portable!" + func_append libobjs " $objs" + fi + fi + + test no = "$dlself" \ + || func_warning "'-dlopen self' is ignored for libtool libraries" + + set dummy $rpath + shift + test 1 -lt "$#" \ + && func_warning "ignoring multiple '-rpath's for a libtool library" + + install_libdir=$1 + + oldlibs= + if test -z "$rpath"; then + if test yes = "$build_libtool_libs"; then + # Building a libtool convenience library. + # Some compilers have problems with a '.al' extension so + # convenience libraries should have the same extension an + # archive normally would. + oldlibs="$output_objdir/$libname.$libext $oldlibs" + build_libtool_libs=convenience + build_old_libs=yes + fi + + test -n "$vinfo" && \ + func_warning "'-version-info/-version-number' is ignored for convenience libraries" + + test -n "$release" && \ + func_warning "'-release' is ignored for convenience libraries" + else + + # Parse the version information argument. + save_ifs=$IFS; IFS=: + set dummy $vinfo 0 0 0 + shift + IFS=$save_ifs + + test -n "$7" && \ + func_fatal_help "too many parameters to '-version-info'" + + # convert absolute version numbers to libtool ages + # this retains compatibility with .la files and attempts + # to make the code below a bit more comprehensible + + case $vinfo_number in + yes) + number_major=$1 + number_minor=$2 + number_revision=$3 + # + # There are really only two kinds -- those that + # use the current revision as the major version + # and those that subtract age and use age as + # a minor version. But, then there is irix + # that has an extra 1 added just for fun + # + case $version_type in + # correct linux to gnu/linux during the next big refactor + darwin|freebsd-elf|linux|osf|windows|none) + func_arith $number_major + $number_minor + current=$func_arith_result + age=$number_minor + revision=$number_revision + ;; + freebsd-aout|qnx|sunos) + current=$number_major + revision=$number_minor + age=0 + ;; + irix|nonstopux) + func_arith $number_major + $number_minor + current=$func_arith_result + age=$number_minor + revision=$number_minor + lt_irix_increment=no + ;; + esac + ;; + no) + current=$1 + revision=$2 + age=$3 + ;; + esac + + # Check that each of the things are valid numbers. + case $current in + 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;; + *) + func_error "CURRENT '$current' must be a nonnegative integer" + func_fatal_error "'$vinfo' is not valid version information" + ;; + esac + + case $revision in + 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;; + *) + func_error "REVISION '$revision' must be a nonnegative integer" + func_fatal_error "'$vinfo' is not valid version information" + ;; + esac + + case $age in + 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;; + *) + func_error "AGE '$age' must be a nonnegative integer" + func_fatal_error "'$vinfo' is not valid version information" + ;; + esac + + if test "$age" -gt "$current"; then + func_error "AGE '$age' is greater than the current interface number '$current'" + func_fatal_error "'$vinfo' is not valid version information" + fi + + # Calculate the version variables. + major= + versuffix= + verstring= + case $version_type in + none) ;; + + darwin) + # Like Linux, but with the current version available in + # verstring for coding it into the library header + func_arith $current - $age + major=.$func_arith_result + versuffix=$major.$age.$revision + # Darwin ld doesn't like 0 for these options... + func_arith $current + 1 + minor_current=$func_arith_result + xlcverstring="$wl-compatibility_version $wl$minor_current $wl-current_version $wl$minor_current.$revision" + verstring="-compatibility_version $minor_current -current_version $minor_current.$revision" + # On Darwin other compilers + case $CC in + nagfor*) + verstring="$wl-compatibility_version $wl$minor_current $wl-current_version $wl$minor_current.$revision" + ;; + *) + verstring="-compatibility_version $minor_current -current_version $minor_current.$revision" + ;; + esac + ;; + + freebsd-aout) + major=.$current + versuffix=.$current.$revision + ;; + + freebsd-elf) + func_arith $current - $age + major=.$func_arith_result + versuffix=$major.$age.$revision + ;; + + irix | nonstopux) + if test no = "$lt_irix_increment"; then + func_arith $current - $age + else + func_arith $current - $age + 1 + fi + major=$func_arith_result + + case $version_type in + nonstopux) verstring_prefix=nonstopux ;; + *) verstring_prefix=sgi ;; + esac + verstring=$verstring_prefix$major.$revision + + # Add in all the interfaces that we are compatible with. + loop=$revision + while test 0 -ne "$loop"; do + func_arith $revision - $loop + iface=$func_arith_result + func_arith $loop - 1 + loop=$func_arith_result + verstring=$verstring_prefix$major.$iface:$verstring + done + + # Before this point, $major must not contain '.'. + major=.$major + versuffix=$major.$revision + ;; + + linux) # correct to gnu/linux during the next big refactor + func_arith $current - $age + major=.$func_arith_result + versuffix=$major.$age.$revision + ;; + + osf) + func_arith $current - $age + major=.$func_arith_result + versuffix=.$current.$age.$revision + verstring=$current.$age.$revision + + # Add in all the interfaces that we are compatible with. + loop=$age + while test 0 -ne "$loop"; do + func_arith $current - $loop + iface=$func_arith_result + func_arith $loop - 1 + loop=$func_arith_result + verstring=$verstring:$iface.0 + done + + # Make executables depend on our current version. + func_append verstring ":$current.0" + ;; + + qnx) + major=.$current + versuffix=.$current + ;; + + sco) + major=.$current + versuffix=.$current + ;; + + sunos) + major=.$current + versuffix=.$current.$revision + ;; + + windows) + # Use '-' rather than '.', since we only want one + # extension on DOS 8.3 file systems. + func_arith $current - $age + major=$func_arith_result + versuffix=-$major + ;; + + *) + func_fatal_configuration "unknown library version type '$version_type'" + ;; + esac + + # Clear the version info if we defaulted, and they specified a release. + if test -z "$vinfo" && test -n "$release"; then + major= + case $version_type in + darwin) + # we can't check for "0.0" in archive_cmds due to quoting + # problems, so we reset it completely + verstring= + ;; + *) + verstring=0.0 + ;; + esac + if test no = "$need_version"; then + versuffix= + else + versuffix=.0.0 + fi + fi + + # Remove version info from name if versioning should be avoided + if test yes,no = "$avoid_version,$need_version"; then + major= + versuffix= + verstring= + fi + + # Check to see if the archive will have undefined symbols. + if test yes = "$allow_undefined"; then + if test unsupported = "$allow_undefined_flag"; then + if test yes = "$build_old_libs"; then + func_warning "undefined symbols not allowed in $host shared libraries; building static only" + build_libtool_libs=no + else + func_fatal_error "can't build $host shared library unless -no-undefined is specified" + fi + fi + else + # Don't allow undefined symbols. + allow_undefined_flag=$no_undefined_flag + fi + + fi + + func_generate_dlsyms "$libname" "$libname" : + func_append libobjs " $symfileobj" + test " " = "$libobjs" && libobjs= + + if test relink != "$opt_mode"; then + # Remove our outputs, but don't remove object files since they + # may have been created when compiling PIC objects. + removelist= + tempremovelist=`$ECHO "$output_objdir/*"` + for p in $tempremovelist; do + case $p in + *.$objext | *.gcno) + ;; + $output_objdir/$outputname | $output_objdir/$libname.* | $output_objdir/$libname$release.*) + if test -n "$precious_files_regex"; then + if $ECHO "$p" | $EGREP -e "$precious_files_regex" >/dev/null 2>&1 + then + continue + fi + fi + func_append removelist " $p" + ;; + *) ;; + esac + done + test -n "$removelist" && \ + func_show_eval "${RM}r \$removelist" + fi + + # Now set the variables for building old libraries. + if test yes = "$build_old_libs" && test convenience != "$build_libtool_libs"; then + func_append oldlibs " $output_objdir/$libname.$libext" + + # Transform .lo files to .o files. + oldobjs="$objs "`$ECHO "$libobjs" | $SP2NL | $SED "/\.$libext$/d; $lo2o" | $NL2SP` + fi + + # Eliminate all temporary directories. + #for path in $notinst_path; do + # lib_search_path=`$ECHO "$lib_search_path " | $SED "s% $path % %g"` + # deplibs=`$ECHO "$deplibs " | $SED "s% -L$path % %g"` + # dependency_libs=`$ECHO "$dependency_libs " | $SED "s% -L$path % %g"` + #done + + if test -n "$xrpath"; then + # If the user specified any rpath flags, then add them. + temp_xrpath= + for libdir in $xrpath; do + func_replace_sysroot "$libdir" + func_append temp_xrpath " -R$func_replace_sysroot_result" + case "$finalize_rpath " in + *" $libdir "*) ;; + *) func_append finalize_rpath " $libdir" ;; + esac + done + if test yes != "$hardcode_into_libs" || test yes = "$build_old_libs"; then + dependency_libs="$temp_xrpath $dependency_libs" + fi + fi + + # Make sure dlfiles contains only unique files that won't be dlpreopened + old_dlfiles=$dlfiles + dlfiles= + for lib in $old_dlfiles; do + case " $dlprefiles $dlfiles " in + *" $lib "*) ;; + *) func_append dlfiles " $lib" ;; + esac + done + + # Make sure dlprefiles contains only unique files + old_dlprefiles=$dlprefiles + dlprefiles= + for lib in $old_dlprefiles; do + case "$dlprefiles " in + *" $lib "*) ;; + *) func_append dlprefiles " $lib" ;; + esac + done + + if test yes = "$build_libtool_libs"; then + if test -n "$rpath"; then + case $host in + *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-beos* | *-cegcc* | *-*-haiku*) + # these systems don't actually have a c library (as such)! + ;; + *-*-rhapsody* | *-*-darwin1.[012]) + # Rhapsody C library is in the System framework + func_append deplibs " System.ltframework" + ;; + *-*-netbsd*) + # Don't link with libc until the a.out ld.so is fixed. + ;; + *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*) + # Do not include libc due to us having libc/libc_r. + ;; + *-*-sco3.2v5* | *-*-sco5v6*) + # Causes problems with __ctype + ;; + *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*) + # Compiler inserts libc in the correct place for threads to work + ;; + *) + # Add libc to deplibs on all other systems if necessary. + if test yes = "$build_libtool_need_lc"; then + func_append deplibs " -lc" + fi + ;; + esac + fi + + # Transform deplibs into only deplibs that can be linked in shared. + name_save=$name + libname_save=$libname + release_save=$release + versuffix_save=$versuffix + major_save=$major + # I'm not sure if I'm treating the release correctly. I think + # release should show up in the -l (ie -lgmp5) so we don't want to + # add it in twice. Is that correct? + release= + versuffix= + major= + newdeplibs= + droppeddeps=no + case $deplibs_check_method in + pass_all) + # Don't check for shared/static. Everything works. + # This might be a little naive. We might want to check + # whether the library exists or not. But this is on + # osf3 & osf4 and I'm not really sure... Just + # implementing what was already the behavior. + newdeplibs=$deplibs + ;; + test_compile) + # This code stresses the "libraries are programs" paradigm to its + # limits. Maybe even breaks it. We compile a program, linking it + # against the deplibs as a proxy for the library. Then we can check + # whether they linked in statically or dynamically with ldd. + $opt_dry_run || $RM conftest.c + cat > conftest.c </dev/null` + $nocaseglob + else + potential_libs=`ls $i/$libnameglob[.-]* 2>/dev/null` + fi + for potent_lib in $potential_libs; do + # Follow soft links. + if ls -lLd "$potent_lib" 2>/dev/null | + $GREP " -> " >/dev/null; then + continue + fi + # The statement above tries to avoid entering an + # endless loop below, in case of cyclic links. + # We might still enter an endless loop, since a link + # loop can be closed while we follow links, + # but so what? + potlib=$potent_lib + while test -h "$potlib" 2>/dev/null; do + potliblink=`ls -ld $potlib | $SED 's/.* -> //'` + case $potliblink in + [\\/]* | [A-Za-z]:[\\/]*) potlib=$potliblink;; + *) potlib=`$ECHO "$potlib" | $SED 's|[^/]*$||'`"$potliblink";; + esac + done + if eval $file_magic_cmd \"\$potlib\" 2>/dev/null | + $SED -e 10q | + $EGREP "$file_magic_regex" > /dev/null; then + func_append newdeplibs " $a_deplib" + a_deplib= + break 2 + fi + done + done + fi + if test -n "$a_deplib"; then + droppeddeps=yes + echo + $ECHO "*** Warning: linker path does not have real file for library $a_deplib." + echo "*** I have the capability to make that library automatically link in when" + echo "*** you link to this library. But I can only do this if you have a" + echo "*** shared version of the library, which you do not appear to have" + echo "*** because I did check the linker path looking for a file starting" + if test -z "$potlib"; then + $ECHO "*** with $libname but no candidates were found. (...for file magic test)" + else + $ECHO "*** with $libname and none of the candidates passed a file format test" + $ECHO "*** using a file magic. Last file checked: $potlib" + fi + fi + ;; + *) + # Add a -L argument. + func_append newdeplibs " $a_deplib" + ;; + esac + done # Gone through all deplibs. + ;; + match_pattern*) + set dummy $deplibs_check_method; shift + match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"` + for a_deplib in $deplibs; do + case $a_deplib in + -l*) + func_stripname -l '' "$a_deplib" + name=$func_stripname_result + if test yes = "$allow_libtool_libs_with_static_runtimes"; then + case " $predeps $postdeps " in + *" $a_deplib "*) + func_append newdeplibs " $a_deplib" + a_deplib= + ;; + esac + fi + if test -n "$a_deplib"; then + libname=`eval "\\$ECHO \"$libname_spec\""` + for i in $lib_search_path $sys_lib_search_path $shlib_search_path; do + potential_libs=`ls $i/$libname[.-]* 2>/dev/null` + for potent_lib in $potential_libs; do + potlib=$potent_lib # see symlink-check above in file_magic test + if eval "\$ECHO \"$potent_lib\"" 2>/dev/null | $SED 10q | \ + $EGREP "$match_pattern_regex" > /dev/null; then + func_append newdeplibs " $a_deplib" + a_deplib= + break 2 + fi + done + done + fi + if test -n "$a_deplib"; then + droppeddeps=yes + echo + $ECHO "*** Warning: linker path does not have real file for library $a_deplib." + echo "*** I have the capability to make that library automatically link in when" + echo "*** you link to this library. But I can only do this if you have a" + echo "*** shared version of the library, which you do not appear to have" + echo "*** because I did check the linker path looking for a file starting" + if test -z "$potlib"; then + $ECHO "*** with $libname but no candidates were found. (...for regex pattern test)" + else + $ECHO "*** with $libname and none of the candidates passed a file format test" + $ECHO "*** using a regex pattern. Last file checked: $potlib" + fi + fi + ;; + *) + # Add a -L argument. + func_append newdeplibs " $a_deplib" + ;; + esac + done # Gone through all deplibs. + ;; + none | unknown | *) + newdeplibs= + tmp_deplibs=`$ECHO " $deplibs" | $SED 's/ -lc$//; s/ -[LR][^ ]*//g'` + if test yes = "$allow_libtool_libs_with_static_runtimes"; then + for i in $predeps $postdeps; do + # can't use Xsed below, because $i might contain '/' + tmp_deplibs=`$ECHO " $tmp_deplibs" | $SED "s|$i||"` + done + fi + case $tmp_deplibs in + *[!\ \ ]*) + echo + if test none = "$deplibs_check_method"; then + echo "*** Warning: inter-library dependencies are not supported in this platform." + else + echo "*** Warning: inter-library dependencies are not known to be supported." + fi + echo "*** All declared inter-library dependencies are being dropped." + droppeddeps=yes + ;; + esac + ;; + esac + versuffix=$versuffix_save + major=$major_save + release=$release_save + libname=$libname_save + name=$name_save + + case $host in + *-*-rhapsody* | *-*-darwin1.[012]) + # On Rhapsody replace the C library with the System framework + newdeplibs=`$ECHO " $newdeplibs" | $SED 's/ -lc / System.ltframework /'` + ;; + esac + + if test yes = "$droppeddeps"; then + if test yes = "$module"; then + echo + echo "*** Warning: libtool could not satisfy all declared inter-library" + $ECHO "*** dependencies of module $libname. Therefore, libtool will create" + echo "*** a static module, that should work as long as the dlopening" + echo "*** application is linked with the -dlopen flag." + if test -z "$global_symbol_pipe"; then + echo + echo "*** However, this would only work if libtool was able to extract symbol" + echo "*** lists from a program, using 'nm' or equivalent, but libtool could" + echo "*** not find such a program. So, this module is probably useless." + echo "*** 'nm' from GNU binutils and a full rebuild may help." + fi + if test no = "$build_old_libs"; then + oldlibs=$output_objdir/$libname.$libext + build_libtool_libs=module + build_old_libs=yes + else + build_libtool_libs=no + fi + else + echo "*** The inter-library dependencies that have been dropped here will be" + echo "*** automatically added whenever a program is linked with this library" + echo "*** or is declared to -dlopen it." + + if test no = "$allow_undefined"; then + echo + echo "*** Since this library must not contain undefined symbols," + echo "*** because either the platform does not support them or" + echo "*** it was explicitly requested with -no-undefined," + echo "*** libtool will only create a static version of it." + if test no = "$build_old_libs"; then + oldlibs=$output_objdir/$libname.$libext + build_libtool_libs=module + build_old_libs=yes + else + build_libtool_libs=no + fi + fi + fi + fi + # Done checking deplibs! + deplibs=$newdeplibs + fi + # Time to change all our "foo.ltframework" stuff back to "-framework foo" + case $host in + *-*-darwin*) + newdeplibs=`$ECHO " $newdeplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` + new_inherited_linker_flags=`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` + deplibs=`$ECHO " $deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` + ;; + esac + + # move library search paths that coincide with paths to not yet + # installed libraries to the beginning of the library search list + new_libs= + for path in $notinst_path; do + case " $new_libs " in + *" -L$path/$objdir "*) ;; + *) + case " $deplibs " in + *" -L$path/$objdir "*) + func_append new_libs " -L$path/$objdir" ;; + esac + ;; + esac + done + for deplib in $deplibs; do + case $deplib in + -L*) + case " $new_libs " in + *" $deplib "*) ;; + *) func_append new_libs " $deplib" ;; + esac + ;; + *) func_append new_libs " $deplib" ;; + esac + done + deplibs=$new_libs + + # All the library-specific variables (install_libdir is set above). + library_names= + old_library= + dlname= + + # Test again, we may have decided not to build it any more + if test yes = "$build_libtool_libs"; then + # Remove $wl instances when linking with ld. + # FIXME: should test the right _cmds variable. + case $archive_cmds in + *\$LD\ *) wl= ;; + esac + if test yes = "$hardcode_into_libs"; then + # Hardcode the library paths + hardcode_libdirs= + dep_rpath= + rpath=$finalize_rpath + test relink = "$opt_mode" || rpath=$compile_rpath$rpath + for libdir in $rpath; do + if test -n "$hardcode_libdir_flag_spec"; then + if test -n "$hardcode_libdir_separator"; then + func_replace_sysroot "$libdir" + libdir=$func_replace_sysroot_result + if test -z "$hardcode_libdirs"; then + hardcode_libdirs=$libdir + else + # Just accumulate the unique libdirs. + case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in + *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*) + ;; + *) + func_append hardcode_libdirs "$hardcode_libdir_separator$libdir" + ;; + esac + fi + else + eval flag=\"$hardcode_libdir_flag_spec\" + func_append dep_rpath " $flag" + fi + elif test -n "$runpath_var"; then + case "$perm_rpath " in + *" $libdir "*) ;; + *) func_append perm_rpath " $libdir" ;; + esac + fi + done + # Substitute the hardcoded libdirs into the rpath. + if test -n "$hardcode_libdir_separator" && + test -n "$hardcode_libdirs"; then + libdir=$hardcode_libdirs + eval "dep_rpath=\"$hardcode_libdir_flag_spec\"" + fi + if test -n "$runpath_var" && test -n "$perm_rpath"; then + # We should set the runpath_var. + rpath= + for dir in $perm_rpath; do + func_append rpath "$dir:" + done + eval "$runpath_var='$rpath\$$runpath_var'; export $runpath_var" + fi + test -n "$dep_rpath" && deplibs="$dep_rpath $deplibs" + fi + + shlibpath=$finalize_shlibpath + test relink = "$opt_mode" || shlibpath=$compile_shlibpath$shlibpath + if test -n "$shlibpath"; then + eval "$shlibpath_var='$shlibpath\$$shlibpath_var'; export $shlibpath_var" + fi + + # Get the real and link names of the library. + eval shared_ext=\"$shrext_cmds\" + eval library_names=\"$library_names_spec\" + set dummy $library_names + shift + realname=$1 + shift + + if test -n "$soname_spec"; then + eval soname=\"$soname_spec\" + else + soname=$realname + fi + if test -z "$dlname"; then + dlname=$soname + fi + + lib=$output_objdir/$realname + linknames= + for link + do + func_append linknames " $link" + done + + # Use standard objects if they are pic + test -z "$pic_flag" && libobjs=`$ECHO "$libobjs" | $SP2NL | $SED "$lo2o" | $NL2SP` + test "X$libobjs" = "X " && libobjs= + + delfiles= + if test -n "$export_symbols" && test -n "$include_expsyms"; then + $opt_dry_run || cp "$export_symbols" "$output_objdir/$libname.uexp" + export_symbols=$output_objdir/$libname.uexp + func_append delfiles " $export_symbols" + fi + + orig_export_symbols= + case $host_os in + cygwin* | mingw* | cegcc*) + if test -n "$export_symbols" && test -z "$export_symbols_regex"; then + # exporting using user supplied symfile + func_dll_def_p "$export_symbols" || { + # and it's NOT already a .def file. Must figure out + # which of the given symbols are data symbols and tag + # them as such. So, trigger use of export_symbols_cmds. + # export_symbols gets reassigned inside the "prepare + # the list of exported symbols" if statement, so the + # include_expsyms logic still works. + orig_export_symbols=$export_symbols + export_symbols= + always_export_symbols=yes + } + fi + ;; + esac + + # Prepare the list of exported symbols + if test -z "$export_symbols"; then + if test yes = "$always_export_symbols" || test -n "$export_symbols_regex"; then + func_verbose "generating symbol list for '$libname.la'" + export_symbols=$output_objdir/$libname.exp + $opt_dry_run || $RM $export_symbols + cmds=$export_symbols_cmds + save_ifs=$IFS; IFS='~' + for cmd1 in $cmds; do + IFS=$save_ifs + # Take the normal branch if the nm_file_list_spec branch + # doesn't work or if tool conversion is not needed. + case $nm_file_list_spec~$to_tool_file_cmd in + *~func_convert_file_noop | *~func_convert_file_msys_to_w32 | ~*) + try_normal_branch=yes + eval cmd=\"$cmd1\" + func_len " $cmd" + len=$func_len_result + ;; + *) + try_normal_branch=no + ;; + esac + if test yes = "$try_normal_branch" \ + && { test "$len" -lt "$max_cmd_len" \ + || test "$max_cmd_len" -le -1; } + then + func_show_eval "$cmd" 'exit $?' + skipped_export=false + elif test -n "$nm_file_list_spec"; then + func_basename "$output" + output_la=$func_basename_result + save_libobjs=$libobjs + save_output=$output + output=$output_objdir/$output_la.nm + func_to_tool_file "$output" + libobjs=$nm_file_list_spec$func_to_tool_file_result + func_append delfiles " $output" + func_verbose "creating $NM input file list: $output" + for obj in $save_libobjs; do + func_to_tool_file "$obj" + $ECHO "$func_to_tool_file_result" + done > "$output" + eval cmd=\"$cmd1\" + func_show_eval "$cmd" 'exit $?' + output=$save_output + libobjs=$save_libobjs + skipped_export=false + else + # The command line is too long to execute in one step. + func_verbose "using reloadable object file for export list..." + skipped_export=: + # Break out early, otherwise skipped_export may be + # set to false by a later but shorter cmd. + break + fi + done + IFS=$save_ifs + if test -n "$export_symbols_regex" && test : != "$skipped_export"; then + func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"' + func_show_eval '$MV "${export_symbols}T" "$export_symbols"' + fi + fi + fi + + if test -n "$export_symbols" && test -n "$include_expsyms"; then + tmp_export_symbols=$export_symbols + test -n "$orig_export_symbols" && tmp_export_symbols=$orig_export_symbols + $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"' + fi + + if test : != "$skipped_export" && test -n "$orig_export_symbols"; then + # The given exports_symbols file has to be filtered, so filter it. + func_verbose "filter symbol list for '$libname.la' to tag DATA exports" + # FIXME: $output_objdir/$libname.filter potentially contains lots of + # 's' commands, which not all seds can handle. GNU sed should be fine + # though. Also, the filter scales superlinearly with the number of + # global variables. join(1) would be nice here, but unfortunately + # isn't a blessed tool. + $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter + func_append delfiles " $export_symbols $output_objdir/$libname.filter" + export_symbols=$output_objdir/$libname.def + $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols + fi + + tmp_deplibs= + for test_deplib in $deplibs; do + case " $convenience " in + *" $test_deplib "*) ;; + *) + func_append tmp_deplibs " $test_deplib" + ;; + esac + done + deplibs=$tmp_deplibs + + if test -n "$convenience"; then + if test -n "$whole_archive_flag_spec" && + test yes = "$compiler_needs_object" && + test -z "$libobjs"; then + # extract the archives, so we have objects to list. + # TODO: could optimize this to just extract one archive. + whole_archive_flag_spec= + fi + if test -n "$whole_archive_flag_spec"; then + save_libobjs=$libobjs + eval libobjs=\"\$libobjs $whole_archive_flag_spec\" + test "X$libobjs" = "X " && libobjs= + else + gentop=$output_objdir/${outputname}x + func_append generated " $gentop" + + func_extract_archives $gentop $convenience + func_append libobjs " $func_extract_archives_result" + test "X$libobjs" = "X " && libobjs= + fi + fi + + if test yes = "$thread_safe" && test -n "$thread_safe_flag_spec"; then + eval flag=\"$thread_safe_flag_spec\" + func_append linker_flags " $flag" + fi + + # Make a backup of the uninstalled library when relinking + if test relink = "$opt_mode"; then + $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}U && $MV $realname ${realname}U)' || exit $? + fi + + # Do each of the archive commands. + if test yes = "$module" && test -n "$module_cmds"; then + if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then + eval test_cmds=\"$module_expsym_cmds\" + cmds=$module_expsym_cmds + else + eval test_cmds=\"$module_cmds\" + cmds=$module_cmds + fi + else + if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then + eval test_cmds=\"$archive_expsym_cmds\" + cmds=$archive_expsym_cmds + else + eval test_cmds=\"$archive_cmds\" + cmds=$archive_cmds + fi + fi + + if test : != "$skipped_export" && + func_len " $test_cmds" && + len=$func_len_result && + test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then + : + else + # The command line is too long to link in one step, link piecewise + # or, if using GNU ld and skipped_export is not :, use a linker + # script. + + # Save the value of $output and $libobjs because we want to + # use them later. If we have whole_archive_flag_spec, we + # want to use save_libobjs as it was before + # whole_archive_flag_spec was expanded, because we can't + # assume the linker understands whole_archive_flag_spec. + # This may have to be revisited, in case too many + # convenience libraries get linked in and end up exceeding + # the spec. + if test -z "$convenience" || test -z "$whole_archive_flag_spec"; then + save_libobjs=$libobjs + fi + save_output=$output + func_basename "$output" + output_la=$func_basename_result + + # Clear the reloadable object creation command queue and + # initialize k to one. + test_cmds= + concat_cmds= + objlist= + last_robj= + k=1 + + if test -n "$save_libobjs" && test : != "$skipped_export" && test yes = "$with_gnu_ld"; then + output=$output_objdir/$output_la.lnkscript + func_verbose "creating GNU ld script: $output" + echo 'INPUT (' > $output + for obj in $save_libobjs + do + func_to_tool_file "$obj" + $ECHO "$func_to_tool_file_result" >> $output + done + echo ')' >> $output + func_append delfiles " $output" + func_to_tool_file "$output" + output=$func_to_tool_file_result + elif test -n "$save_libobjs" && test : != "$skipped_export" && test -n "$file_list_spec"; then + output=$output_objdir/$output_la.lnk + func_verbose "creating linker input file list: $output" + : > $output + set x $save_libobjs + shift + firstobj= + if test yes = "$compiler_needs_object"; then + firstobj="$1 " + shift + fi + for obj + do + func_to_tool_file "$obj" + $ECHO "$func_to_tool_file_result" >> $output + done + func_append delfiles " $output" + func_to_tool_file "$output" + output=$firstobj\"$file_list_spec$func_to_tool_file_result\" + else + if test -n "$save_libobjs"; then + func_verbose "creating reloadable object files..." + output=$output_objdir/$output_la-$k.$objext + eval test_cmds=\"$reload_cmds\" + func_len " $test_cmds" + len0=$func_len_result + len=$len0 + + # Loop over the list of objects to be linked. + for obj in $save_libobjs + do + func_len " $obj" + func_arith $len + $func_len_result + len=$func_arith_result + if test -z "$objlist" || + test "$len" -lt "$max_cmd_len"; then + func_append objlist " $obj" + else + # The command $test_cmds is almost too long, add a + # command to the queue. + if test 1 -eq "$k"; then + # The first file doesn't have a previous command to add. + reload_objs=$objlist + eval concat_cmds=\"$reload_cmds\" + else + # All subsequent reloadable object files will link in + # the last one created. + reload_objs="$objlist $last_robj" + eval concat_cmds=\"\$concat_cmds~$reload_cmds~\$RM $last_robj\" + fi + last_robj=$output_objdir/$output_la-$k.$objext + func_arith $k + 1 + k=$func_arith_result + output=$output_objdir/$output_la-$k.$objext + objlist=" $obj" + func_len " $last_robj" + func_arith $len0 + $func_len_result + len=$func_arith_result + fi + done + # Handle the remaining objects by creating one last + # reloadable object file. All subsequent reloadable object + # files will link in the last one created. + test -z "$concat_cmds" || concat_cmds=$concat_cmds~ + reload_objs="$objlist $last_robj" + eval concat_cmds=\"\$concat_cmds$reload_cmds\" + if test -n "$last_robj"; then + eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\" + fi + func_append delfiles " $output" + + else + output= + fi + + ${skipped_export-false} && { + func_verbose "generating symbol list for '$libname.la'" + export_symbols=$output_objdir/$libname.exp + $opt_dry_run || $RM $export_symbols + libobjs=$output + # Append the command to create the export file. + test -z "$concat_cmds" || concat_cmds=$concat_cmds~ + eval concat_cmds=\"\$concat_cmds$export_symbols_cmds\" + if test -n "$last_robj"; then + eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\" + fi + } + + test -n "$save_libobjs" && + func_verbose "creating a temporary reloadable object file: $output" + + # Loop through the commands generated above and execute them. + save_ifs=$IFS; IFS='~' + for cmd in $concat_cmds; do + IFS=$save_ifs + $opt_quiet || { + func_quote_for_expand "$cmd" + eval "func_echo $func_quote_for_expand_result" + } + $opt_dry_run || eval "$cmd" || { + lt_exit=$? + + # Restore the uninstalled library and exit + if test relink = "$opt_mode"; then + ( cd "$output_objdir" && \ + $RM "${realname}T" && \ + $MV "${realname}U" "$realname" ) + fi + + exit $lt_exit + } + done + IFS=$save_ifs + + if test -n "$export_symbols_regex" && ${skipped_export-false}; then + func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"' + func_show_eval '$MV "${export_symbols}T" "$export_symbols"' + fi + fi + + ${skipped_export-false} && { + if test -n "$export_symbols" && test -n "$include_expsyms"; then + tmp_export_symbols=$export_symbols + test -n "$orig_export_symbols" && tmp_export_symbols=$orig_export_symbols + $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"' + fi + + if test -n "$orig_export_symbols"; then + # The given exports_symbols file has to be filtered, so filter it. + func_verbose "filter symbol list for '$libname.la' to tag DATA exports" + # FIXME: $output_objdir/$libname.filter potentially contains lots of + # 's' commands, which not all seds can handle. GNU sed should be fine + # though. Also, the filter scales superlinearly with the number of + # global variables. join(1) would be nice here, but unfortunately + # isn't a blessed tool. + $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter + func_append delfiles " $export_symbols $output_objdir/$libname.filter" + export_symbols=$output_objdir/$libname.def + $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols + fi + } + + libobjs=$output + # Restore the value of output. + output=$save_output + + if test -n "$convenience" && test -n "$whole_archive_flag_spec"; then + eval libobjs=\"\$libobjs $whole_archive_flag_spec\" + test "X$libobjs" = "X " && libobjs= + fi + # Expand the library linking commands again to reset the + # value of $libobjs for piecewise linking. + + # Do each of the archive commands. + if test yes = "$module" && test -n "$module_cmds"; then + if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then + cmds=$module_expsym_cmds + else + cmds=$module_cmds + fi + else + if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then + cmds=$archive_expsym_cmds + else + cmds=$archive_cmds + fi + fi + fi + + if test -n "$delfiles"; then + # Append the command to remove temporary files to $cmds. + eval cmds=\"\$cmds~\$RM $delfiles\" + fi + + # Add any objects from preloaded convenience libraries + if test -n "$dlprefiles"; then + gentop=$output_objdir/${outputname}x + func_append generated " $gentop" + + func_extract_archives $gentop $dlprefiles + func_append libobjs " $func_extract_archives_result" + test "X$libobjs" = "X " && libobjs= + fi + + save_ifs=$IFS; IFS='~' + for cmd in $cmds; do + IFS=$sp$nl + eval cmd=\"$cmd\" + IFS=$save_ifs + $opt_quiet || { + func_quote_for_expand "$cmd" + eval "func_echo $func_quote_for_expand_result" + } + $opt_dry_run || eval "$cmd" || { + lt_exit=$? + + # Restore the uninstalled library and exit + if test relink = "$opt_mode"; then + ( cd "$output_objdir" && \ + $RM "${realname}T" && \ + $MV "${realname}U" "$realname" ) + fi + + exit $lt_exit + } + done + IFS=$save_ifs + + # Restore the uninstalled library and exit + if test relink = "$opt_mode"; then + $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}T && $MV $realname ${realname}T && $MV ${realname}U $realname)' || exit $? + + if test -n "$convenience"; then + if test -z "$whole_archive_flag_spec"; then + func_show_eval '${RM}r "$gentop"' + fi + fi + + exit $EXIT_SUCCESS + fi + + # Create links to the real library. + for linkname in $linknames; do + if test "$realname" != "$linkname"; then + func_show_eval '(cd "$output_objdir" && $RM "$linkname" && $LN_S "$realname" "$linkname")' 'exit $?' + fi + done + + # If -module or -export-dynamic was specified, set the dlname. + if test yes = "$module" || test yes = "$export_dynamic"; then + # On all known operating systems, these are identical. + dlname=$soname + fi + fi + ;; + + obj) + if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then + func_warning "'-dlopen' is ignored for objects" + fi + + case " $deplibs" in + *\ -l* | *\ -L*) + func_warning "'-l' and '-L' are ignored for objects" ;; + esac + + test -n "$rpath" && \ + func_warning "'-rpath' is ignored for objects" + + test -n "$xrpath" && \ + func_warning "'-R' is ignored for objects" + + test -n "$vinfo" && \ + func_warning "'-version-info' is ignored for objects" + + test -n "$release" && \ + func_warning "'-release' is ignored for objects" + + case $output in + *.lo) + test -n "$objs$old_deplibs" && \ + func_fatal_error "cannot build library object '$output' from non-libtool objects" + + libobj=$output + func_lo2o "$libobj" + obj=$func_lo2o_result + ;; + *) + libobj= + obj=$output + ;; + esac + + # Delete the old objects. + $opt_dry_run || $RM $obj $libobj + + # Objects from convenience libraries. This assumes + # single-version convenience libraries. Whenever we create + # different ones for PIC/non-PIC, this we'll have to duplicate + # the extraction. + reload_conv_objs= + gentop= + # if reload_cmds runs $LD directly, get rid of -Wl from + # whole_archive_flag_spec and hope we can get by with turning comma + # into space. + case $reload_cmds in + *\$LD[\ \$]*) wl= ;; + esac + if test -n "$convenience"; then + if test -n "$whole_archive_flag_spec"; then + eval tmp_whole_archive_flags=\"$whole_archive_flag_spec\" + test -n "$wl" || tmp_whole_archive_flags=`$ECHO "$tmp_whole_archive_flags" | $SED 's|,| |g'` + reload_conv_objs=$reload_objs\ $tmp_whole_archive_flags + else + gentop=$output_objdir/${obj}x + func_append generated " $gentop" + + func_extract_archives $gentop $convenience + reload_conv_objs="$reload_objs $func_extract_archives_result" + fi + fi + + # If we're not building shared, we need to use non_pic_objs + test yes = "$build_libtool_libs" || libobjs=$non_pic_objects + + # Create the old-style object. + reload_objs=$objs$old_deplibs' '`$ECHO "$libobjs" | $SP2NL | $SED "/\.$libext$/d; /\.lib$/d; $lo2o" | $NL2SP`' '$reload_conv_objs + + output=$obj + func_execute_cmds "$reload_cmds" 'exit $?' + + # Exit if we aren't doing a library object file. + if test -z "$libobj"; then + if test -n "$gentop"; then + func_show_eval '${RM}r "$gentop"' + fi + + exit $EXIT_SUCCESS + fi + + test yes = "$build_libtool_libs" || { + if test -n "$gentop"; then + func_show_eval '${RM}r "$gentop"' + fi + + # Create an invalid libtool object if no PIC, so that we don't + # accidentally link it into a program. + # $show "echo timestamp > $libobj" + # $opt_dry_run || eval "echo timestamp > $libobj" || exit $? + exit $EXIT_SUCCESS + } + + if test -n "$pic_flag" || test default != "$pic_mode"; then + # Only do commands if we really have different PIC objects. + reload_objs="$libobjs $reload_conv_objs" + output=$libobj + func_execute_cmds "$reload_cmds" 'exit $?' + fi + + if test -n "$gentop"; then + func_show_eval '${RM}r "$gentop"' + fi + + exit $EXIT_SUCCESS + ;; + + prog) + case $host in + *cygwin*) func_stripname '' '.exe' "$output" + output=$func_stripname_result.exe;; + esac + test -n "$vinfo" && \ + func_warning "'-version-info' is ignored for programs" + + test -n "$release" && \ + func_warning "'-release' is ignored for programs" + + $preload \ + && test unknown,unknown,unknown = "$dlopen_support,$dlopen_self,$dlopen_self_static" \ + && func_warning "'LT_INIT([dlopen])' not used. Assuming no dlopen support." + + case $host in + *-*-rhapsody* | *-*-darwin1.[012]) + # On Rhapsody replace the C library is the System framework + compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's/ -lc / System.ltframework /'` + finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's/ -lc / System.ltframework /'` + ;; + esac + + case $host in + *-*-darwin*) + # Don't allow lazy linking, it breaks C++ global constructors + # But is supposedly fixed on 10.4 or later (yay!). + if test CXX = "$tagname"; then + case ${MACOSX_DEPLOYMENT_TARGET-10.0} in + 10.[0123]) + func_append compile_command " $wl-bind_at_load" + func_append finalize_command " $wl-bind_at_load" + ;; + esac + fi + # Time to change all our "foo.ltframework" stuff back to "-framework foo" + compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` + finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` + ;; + esac + + + # move library search paths that coincide with paths to not yet + # installed libraries to the beginning of the library search list + new_libs= + for path in $notinst_path; do + case " $new_libs " in + *" -L$path/$objdir "*) ;; + *) + case " $compile_deplibs " in + *" -L$path/$objdir "*) + func_append new_libs " -L$path/$objdir" ;; + esac + ;; + esac + done + for deplib in $compile_deplibs; do + case $deplib in + -L*) + case " $new_libs " in + *" $deplib "*) ;; + *) func_append new_libs " $deplib" ;; + esac + ;; + *) func_append new_libs " $deplib" ;; + esac + done + compile_deplibs=$new_libs + + + func_append compile_command " $compile_deplibs" + func_append finalize_command " $finalize_deplibs" + + if test -n "$rpath$xrpath"; then + # If the user specified any rpath flags, then add them. + for libdir in $rpath $xrpath; do + # This is the magic to use -rpath. + case "$finalize_rpath " in + *" $libdir "*) ;; + *) func_append finalize_rpath " $libdir" ;; + esac + done + fi + + # Now hardcode the library paths + rpath= + hardcode_libdirs= + for libdir in $compile_rpath $finalize_rpath; do + if test -n "$hardcode_libdir_flag_spec"; then + if test -n "$hardcode_libdir_separator"; then + if test -z "$hardcode_libdirs"; then + hardcode_libdirs=$libdir + else + # Just accumulate the unique libdirs. + case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in + *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*) + ;; + *) + func_append hardcode_libdirs "$hardcode_libdir_separator$libdir" + ;; + esac + fi + else + eval flag=\"$hardcode_libdir_flag_spec\" + func_append rpath " $flag" + fi + elif test -n "$runpath_var"; then + case "$perm_rpath " in + *" $libdir "*) ;; + *) func_append perm_rpath " $libdir" ;; + esac + fi + case $host in + *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*) + testbindir=`$ECHO "$libdir" | $SED -e 's*/lib$*/bin*'` + case :$dllsearchpath: in + *":$libdir:"*) ;; + ::) dllsearchpath=$libdir;; + *) func_append dllsearchpath ":$libdir";; + esac + case :$dllsearchpath: in + *":$testbindir:"*) ;; + ::) dllsearchpath=$testbindir;; + *) func_append dllsearchpath ":$testbindir";; + esac + ;; + esac + done + # Substitute the hardcoded libdirs into the rpath. + if test -n "$hardcode_libdir_separator" && + test -n "$hardcode_libdirs"; then + libdir=$hardcode_libdirs + eval rpath=\" $hardcode_libdir_flag_spec\" + fi + compile_rpath=$rpath + + rpath= + hardcode_libdirs= + for libdir in $finalize_rpath; do + if test -n "$hardcode_libdir_flag_spec"; then + if test -n "$hardcode_libdir_separator"; then + if test -z "$hardcode_libdirs"; then + hardcode_libdirs=$libdir + else + # Just accumulate the unique libdirs. + case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in + *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*) + ;; + *) + func_append hardcode_libdirs "$hardcode_libdir_separator$libdir" + ;; + esac + fi + else + eval flag=\"$hardcode_libdir_flag_spec\" + func_append rpath " $flag" + fi + elif test -n "$runpath_var"; then + case "$finalize_perm_rpath " in + *" $libdir "*) ;; + *) func_append finalize_perm_rpath " $libdir" ;; + esac + fi + done + # Substitute the hardcoded libdirs into the rpath. + if test -n "$hardcode_libdir_separator" && + test -n "$hardcode_libdirs"; then + libdir=$hardcode_libdirs + eval rpath=\" $hardcode_libdir_flag_spec\" + fi + finalize_rpath=$rpath + + if test -n "$libobjs" && test yes = "$build_old_libs"; then + # Transform all the library objects into standard objects. + compile_command=`$ECHO "$compile_command" | $SP2NL | $SED "$lo2o" | $NL2SP` + finalize_command=`$ECHO "$finalize_command" | $SP2NL | $SED "$lo2o" | $NL2SP` + fi + + func_generate_dlsyms "$outputname" "@PROGRAM@" false + + # template prelinking step + if test -n "$prelink_cmds"; then + func_execute_cmds "$prelink_cmds" 'exit $?' + fi + + wrappers_required=: + case $host in + *cegcc* | *mingw32ce*) + # Disable wrappers for cegcc and mingw32ce hosts, we are cross compiling anyway. + wrappers_required=false + ;; + *cygwin* | *mingw* ) + test yes = "$build_libtool_libs" || wrappers_required=false + ;; + *) + if test no = "$need_relink" || test yes != "$build_libtool_libs"; then + wrappers_required=false + fi + ;; + esac + $wrappers_required || { + # Replace the output file specification. + compile_command=`$ECHO "$compile_command" | $SED 's%@OUTPUT@%'"$output"'%g'` + link_command=$compile_command$compile_rpath + + # We have no uninstalled library dependencies, so finalize right now. + exit_status=0 + func_show_eval "$link_command" 'exit_status=$?' + + if test -n "$postlink_cmds"; then + func_to_tool_file "$output" + postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'` + func_execute_cmds "$postlink_cmds" 'exit $?' + fi + + # Delete the generated files. + if test -f "$output_objdir/${outputname}S.$objext"; then + func_show_eval '$RM "$output_objdir/${outputname}S.$objext"' + fi + + exit $exit_status + } + + if test -n "$compile_shlibpath$finalize_shlibpath"; then + compile_command="$shlibpath_var=\"$compile_shlibpath$finalize_shlibpath\$$shlibpath_var\" $compile_command" + fi + if test -n "$finalize_shlibpath"; then + finalize_command="$shlibpath_var=\"$finalize_shlibpath\$$shlibpath_var\" $finalize_command" + fi + + compile_var= + finalize_var= + if test -n "$runpath_var"; then + if test -n "$perm_rpath"; then + # We should set the runpath_var. + rpath= + for dir in $perm_rpath; do + func_append rpath "$dir:" + done + compile_var="$runpath_var=\"$rpath\$$runpath_var\" " + fi + if test -n "$finalize_perm_rpath"; then + # We should set the runpath_var. + rpath= + for dir in $finalize_perm_rpath; do + func_append rpath "$dir:" + done + finalize_var="$runpath_var=\"$rpath\$$runpath_var\" " + fi + fi + + if test yes = "$no_install"; then + # We don't need to create a wrapper script. + link_command=$compile_var$compile_command$compile_rpath + # Replace the output file specification. + link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output"'%g'` + # Delete the old output file. + $opt_dry_run || $RM $output + # Link the executable and exit + func_show_eval "$link_command" 'exit $?' + + if test -n "$postlink_cmds"; then + func_to_tool_file "$output" + postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'` + func_execute_cmds "$postlink_cmds" 'exit $?' + fi + + exit $EXIT_SUCCESS + fi + + case $hardcode_action,$fast_install in + relink,*) + # Fast installation is not supported + link_command=$compile_var$compile_command$compile_rpath + relink_command=$finalize_var$finalize_command$finalize_rpath + + func_warning "this platform does not like uninstalled shared libraries" + func_warning "'$output' will be relinked during installation" + ;; + *,yes) + link_command=$finalize_var$compile_command$finalize_rpath + relink_command=`$ECHO "$compile_var$compile_command$compile_rpath" | $SED 's%@OUTPUT@%\$progdir/\$file%g'` + ;; + *,no) + link_command=$compile_var$compile_command$compile_rpath + relink_command=$finalize_var$finalize_command$finalize_rpath + ;; + *,needless) + link_command=$finalize_var$compile_command$finalize_rpath + relink_command= + ;; + esac + + # Replace the output file specification. + link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output_objdir/$outputname"'%g'` + + # Delete the old output files. + $opt_dry_run || $RM $output $output_objdir/$outputname $output_objdir/lt-$outputname + + func_show_eval "$link_command" 'exit $?' + + if test -n "$postlink_cmds"; then + func_to_tool_file "$output_objdir/$outputname" + postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output_objdir/$outputname"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'` + func_execute_cmds "$postlink_cmds" 'exit $?' + fi + + # Now create the wrapper script. + func_verbose "creating $output" + + # Quote the relink command for shipping. + if test -n "$relink_command"; then + # Preserve any variables that may affect compiler behavior + for var in $variables_saved_for_relink; do + if eval test -z \"\${$var+set}\"; then + relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command" + elif eval var_value=\$$var; test -z "$var_value"; then + relink_command="$var=; export $var; $relink_command" + else + func_quote_for_eval "$var_value" + relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command" + fi + done + relink_command="(cd `pwd`; $relink_command)" + relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"` + fi + + # Only actually do things if not in dry run mode. + $opt_dry_run || { + # win32 will think the script is a binary if it has + # a .exe suffix, so we strip it off here. + case $output in + *.exe) func_stripname '' '.exe' "$output" + output=$func_stripname_result ;; + esac + # test for cygwin because mv fails w/o .exe extensions + case $host in + *cygwin*) + exeext=.exe + func_stripname '' '.exe' "$outputname" + outputname=$func_stripname_result ;; + *) exeext= ;; + esac + case $host in + *cygwin* | *mingw* ) + func_dirname_and_basename "$output" "" "." + output_name=$func_basename_result + output_path=$func_dirname_result + cwrappersource=$output_path/$objdir/lt-$output_name.c + cwrapper=$output_path/$output_name.exe + $RM $cwrappersource $cwrapper + trap "$RM $cwrappersource $cwrapper; exit $EXIT_FAILURE" 1 2 15 + + func_emit_cwrapperexe_src > $cwrappersource + + # The wrapper executable is built using the $host compiler, + # because it contains $host paths and files. If cross- + # compiling, it, like the target executable, must be + # executed on the $host or under an emulation environment. + $opt_dry_run || { + $LTCC $LTCFLAGS -o $cwrapper $cwrappersource + $STRIP $cwrapper + } + + # Now, create the wrapper script for func_source use: + func_ltwrapper_scriptname $cwrapper + $RM $func_ltwrapper_scriptname_result + trap "$RM $func_ltwrapper_scriptname_result; exit $EXIT_FAILURE" 1 2 15 + $opt_dry_run || { + # note: this script will not be executed, so do not chmod. + if test "x$build" = "x$host"; then + $cwrapper --lt-dump-script > $func_ltwrapper_scriptname_result + else + func_emit_wrapper no > $func_ltwrapper_scriptname_result + fi + } + ;; + * ) + $RM $output + trap "$RM $output; exit $EXIT_FAILURE" 1 2 15 + + func_emit_wrapper no > $output + chmod +x $output + ;; + esac + } + exit $EXIT_SUCCESS + ;; + esac + + # See if we need to build an old-fashioned archive. + for oldlib in $oldlibs; do + + case $build_libtool_libs in + convenience) + oldobjs="$libobjs_save $symfileobj" + addlibs=$convenience + build_libtool_libs=no + ;; + module) + oldobjs=$libobjs_save + addlibs=$old_convenience + build_libtool_libs=no + ;; + *) + oldobjs="$old_deplibs $non_pic_objects" + $preload && test -f "$symfileobj" \ + && func_append oldobjs " $symfileobj" + addlibs=$old_convenience + ;; + esac + + if test -n "$addlibs"; then + gentop=$output_objdir/${outputname}x + func_append generated " $gentop" + + func_extract_archives $gentop $addlibs + func_append oldobjs " $func_extract_archives_result" + fi + + # Do each command in the archive commands. + if test -n "$old_archive_from_new_cmds" && test yes = "$build_libtool_libs"; then + cmds=$old_archive_from_new_cmds + else + + # Add any objects from preloaded convenience libraries + if test -n "$dlprefiles"; then + gentop=$output_objdir/${outputname}x + func_append generated " $gentop" + + func_extract_archives $gentop $dlprefiles + func_append oldobjs " $func_extract_archives_result" + fi + + # POSIX demands no paths to be encoded in archives. We have + # to avoid creating archives with duplicate basenames if we + # might have to extract them afterwards, e.g., when creating a + # static archive out of a convenience library, or when linking + # the entirety of a libtool archive into another (currently + # not supported by libtool). + if (for obj in $oldobjs + do + func_basename "$obj" + $ECHO "$func_basename_result" + done | sort | sort -uc >/dev/null 2>&1); then + : + else + echo "copying selected object files to avoid basename conflicts..." + gentop=$output_objdir/${outputname}x + func_append generated " $gentop" + func_mkdir_p "$gentop" + save_oldobjs=$oldobjs + oldobjs= + counter=1 + for obj in $save_oldobjs + do + func_basename "$obj" + objbase=$func_basename_result + case " $oldobjs " in + " ") oldobjs=$obj ;; + *[\ /]"$objbase "*) + while :; do + # Make sure we don't pick an alternate name that also + # overlaps. + newobj=lt$counter-$objbase + func_arith $counter + 1 + counter=$func_arith_result + case " $oldobjs " in + *[\ /]"$newobj "*) ;; + *) if test ! -f "$gentop/$newobj"; then break; fi ;; + esac + done + func_show_eval "ln $obj $gentop/$newobj || cp $obj $gentop/$newobj" + func_append oldobjs " $gentop/$newobj" + ;; + *) func_append oldobjs " $obj" ;; + esac + done + fi + func_to_tool_file "$oldlib" func_convert_file_msys_to_w32 + tool_oldlib=$func_to_tool_file_result + eval cmds=\"$old_archive_cmds\" + + func_len " $cmds" + len=$func_len_result + if test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then + cmds=$old_archive_cmds + elif test -n "$archiver_list_spec"; then + func_verbose "using command file archive linking..." + for obj in $oldobjs + do + func_to_tool_file "$obj" + $ECHO "$func_to_tool_file_result" + done > $output_objdir/$libname.libcmd + func_to_tool_file "$output_objdir/$libname.libcmd" + oldobjs=" $archiver_list_spec$func_to_tool_file_result" + cmds=$old_archive_cmds + else + # the command line is too long to link in one step, link in parts + func_verbose "using piecewise archive linking..." + save_RANLIB=$RANLIB + RANLIB=: + objlist= + concat_cmds= + save_oldobjs=$oldobjs + oldobjs= + # Is there a better way of finding the last object in the list? + for obj in $save_oldobjs + do + last_oldobj=$obj + done + eval test_cmds=\"$old_archive_cmds\" + func_len " $test_cmds" + len0=$func_len_result + len=$len0 + for obj in $save_oldobjs + do + func_len " $obj" + func_arith $len + $func_len_result + len=$func_arith_result + func_append objlist " $obj" + if test "$len" -lt "$max_cmd_len"; then + : + else + # the above command should be used before it gets too long + oldobjs=$objlist + if test "$obj" = "$last_oldobj"; then + RANLIB=$save_RANLIB + fi + test -z "$concat_cmds" || concat_cmds=$concat_cmds~ + eval concat_cmds=\"\$concat_cmds$old_archive_cmds\" + objlist= + len=$len0 + fi + done + RANLIB=$save_RANLIB + oldobjs=$objlist + if test -z "$oldobjs"; then + eval cmds=\"\$concat_cmds\" + else + eval cmds=\"\$concat_cmds~\$old_archive_cmds\" + fi + fi + fi + func_execute_cmds "$cmds" 'exit $?' + done + + test -n "$generated" && \ + func_show_eval "${RM}r$generated" + + # Now create the libtool archive. + case $output in + *.la) + old_library= + test yes = "$build_old_libs" && old_library=$libname.$libext + func_verbose "creating $output" + + # Preserve any variables that may affect compiler behavior + for var in $variables_saved_for_relink; do + if eval test -z \"\${$var+set}\"; then + relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command" + elif eval var_value=\$$var; test -z "$var_value"; then + relink_command="$var=; export $var; $relink_command" + else + func_quote_for_eval "$var_value" + relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command" + fi + done + # Quote the link command for shipping. + relink_command="(cd `pwd`; $SHELL \"$progpath\" $preserve_args --mode=relink $libtool_args @inst_prefix_dir@)" + relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"` + if test yes = "$hardcode_automatic"; then + relink_command= + fi + + # Only create the output if not a dry run. + $opt_dry_run || { + for installed in no yes; do + if test yes = "$installed"; then + if test -z "$install_libdir"; then + break + fi + output=$output_objdir/${outputname}i + # Replace all uninstalled libtool libraries with the installed ones + newdependency_libs= + for deplib in $dependency_libs; do + case $deplib in + *.la) + func_basename "$deplib" + name=$func_basename_result + func_resolve_sysroot "$deplib" + eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $func_resolve_sysroot_result` + test -z "$libdir" && \ + func_fatal_error "'$deplib' is not a valid libtool archive" + func_append newdependency_libs " ${lt_sysroot:+=}$libdir/$name" + ;; + -L*) + func_stripname -L '' "$deplib" + func_replace_sysroot "$func_stripname_result" + func_append newdependency_libs " -L$func_replace_sysroot_result" + ;; + -R*) + func_stripname -R '' "$deplib" + func_replace_sysroot "$func_stripname_result" + func_append newdependency_libs " -R$func_replace_sysroot_result" + ;; + *) func_append newdependency_libs " $deplib" ;; + esac + done + dependency_libs=$newdependency_libs + newdlfiles= + + for lib in $dlfiles; do + case $lib in + *.la) + func_basename "$lib" + name=$func_basename_result + eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $lib` + test -z "$libdir" && \ + func_fatal_error "'$lib' is not a valid libtool archive" + func_append newdlfiles " ${lt_sysroot:+=}$libdir/$name" + ;; + *) func_append newdlfiles " $lib" ;; + esac + done + dlfiles=$newdlfiles + newdlprefiles= + for lib in $dlprefiles; do + case $lib in + *.la) + # Only pass preopened files to the pseudo-archive (for + # eventual linking with the app. that links it) if we + # didn't already link the preopened objects directly into + # the library: + func_basename "$lib" + name=$func_basename_result + eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $lib` + test -z "$libdir" && \ + func_fatal_error "'$lib' is not a valid libtool archive" + func_append newdlprefiles " ${lt_sysroot:+=}$libdir/$name" + ;; + esac + done + dlprefiles=$newdlprefiles + else + newdlfiles= + for lib in $dlfiles; do + case $lib in + [\\/]* | [A-Za-z]:[\\/]*) abs=$lib ;; + *) abs=`pwd`"/$lib" ;; + esac + func_append newdlfiles " $abs" + done + dlfiles=$newdlfiles + newdlprefiles= + for lib in $dlprefiles; do + case $lib in + [\\/]* | [A-Za-z]:[\\/]*) abs=$lib ;; + *) abs=`pwd`"/$lib" ;; + esac + func_append newdlprefiles " $abs" + done + dlprefiles=$newdlprefiles + fi + $RM $output + # place dlname in correct position for cygwin + # In fact, it would be nice if we could use this code for all target + # systems that can't hard-code library paths into their executables + # and that have no shared library path variable independent of PATH, + # but it turns out we can't easily determine that from inspecting + # libtool variables, so we have to hard-code the OSs to which it + # applies here; at the moment, that means platforms that use the PE + # object format with DLL files. See the long comment at the top of + # tests/bindir.at for full details. + tdlname=$dlname + case $host,$output,$installed,$module,$dlname in + *cygwin*,*lai,yes,no,*.dll | *mingw*,*lai,yes,no,*.dll | *cegcc*,*lai,yes,no,*.dll) + # If a -bindir argument was supplied, place the dll there. + if test -n "$bindir"; then + func_relative_path "$install_libdir" "$bindir" + tdlname=$func_relative_path_result/$dlname + else + # Otherwise fall back on heuristic. + tdlname=../bin/$dlname + fi + ;; + esac + $ECHO > $output "\ +# $outputname - a libtool library file +# Generated by $PROGRAM (GNU $PACKAGE) $VERSION +# +# Please DO NOT delete this file! +# It is necessary for linking the library. + +# The name that we can dlopen(3). +dlname='$tdlname' + +# Names of this library. +library_names='$library_names' + +# The name of the static archive. +old_library='$old_library' + +# Linker flags that cannot go in dependency_libs. +inherited_linker_flags='$new_inherited_linker_flags' + +# Libraries that this one depends upon. +dependency_libs='$dependency_libs' + +# Names of additional weak libraries provided by this library +weak_library_names='$weak_libs' + +# Version information for $libname. +current=$current +age=$age +revision=$revision + +# Is this an already installed library? +installed=$installed + +# Should we warn about portability when linking against -modules? +shouldnotlink=$module + +# Files to dlopen/dlpreopen +dlopen='$dlfiles' +dlpreopen='$dlprefiles' + +# Directory that this library needs to be installed in: +libdir='$install_libdir'" + if test no,yes = "$installed,$need_relink"; then + $ECHO >> $output "\ +relink_command=\"$relink_command\"" + fi + done + } + + # Do a symbolic link so that the libtool archive can be found in + # LD_LIBRARY_PATH before the program is installed. + func_show_eval '( cd "$output_objdir" && $RM "$outputname" && $LN_S "../$outputname" "$outputname" )' 'exit $?' + ;; + esac + exit $EXIT_SUCCESS +} + +if test link = "$opt_mode" || test relink = "$opt_mode"; then + func_mode_link ${1+"$@"} +fi + + +# func_mode_uninstall arg... +func_mode_uninstall () +{ + $debug_cmd + + RM=$nonopt + files= + rmforce=false + exit_status=0 + + # This variable tells wrapper scripts just to set variables rather + # than running their programs. + libtool_install_magic=$magic + + for arg + do + case $arg in + -f) func_append RM " $arg"; rmforce=: ;; + -*) func_append RM " $arg" ;; + *) func_append files " $arg" ;; + esac + done + + test -z "$RM" && \ + func_fatal_help "you must specify an RM program" + + rmdirs= + + for file in $files; do + func_dirname "$file" "" "." + dir=$func_dirname_result + if test . = "$dir"; then + odir=$objdir + else + odir=$dir/$objdir + fi + func_basename "$file" + name=$func_basename_result + test uninstall = "$opt_mode" && odir=$dir + + # Remember odir for removal later, being careful to avoid duplicates + if test clean = "$opt_mode"; then + case " $rmdirs " in + *" $odir "*) ;; + *) func_append rmdirs " $odir" ;; + esac + fi + + # Don't error if the file doesn't exist and rm -f was used. + if { test -L "$file"; } >/dev/null 2>&1 || + { test -h "$file"; } >/dev/null 2>&1 || + test -f "$file"; then + : + elif test -d "$file"; then + exit_status=1 + continue + elif $rmforce; then + continue + fi + + rmfiles=$file + + case $name in + *.la) + # Possibly a libtool archive, so verify it. + if func_lalib_p "$file"; then + func_source $dir/$name + + # Delete the libtool libraries and symlinks. + for n in $library_names; do + func_append rmfiles " $odir/$n" + done + test -n "$old_library" && func_append rmfiles " $odir/$old_library" + + case $opt_mode in + clean) + case " $library_names " in + *" $dlname "*) ;; + *) test -n "$dlname" && func_append rmfiles " $odir/$dlname" ;; + esac + test -n "$libdir" && func_append rmfiles " $odir/$name $odir/${name}i" + ;; + uninstall) + if test -n "$library_names"; then + # Do each command in the postuninstall commands. + func_execute_cmds "$postuninstall_cmds" '$rmforce || exit_status=1' + fi + + if test -n "$old_library"; then + # Do each command in the old_postuninstall commands. + func_execute_cmds "$old_postuninstall_cmds" '$rmforce || exit_status=1' + fi + # FIXME: should reinstall the best remaining shared library. + ;; + esac + fi + ;; + + *.lo) + # Possibly a libtool object, so verify it. + if func_lalib_p "$file"; then + + # Read the .lo file + func_source $dir/$name + + # Add PIC object to the list of files to remove. + if test -n "$pic_object" && test none != "$pic_object"; then + func_append rmfiles " $dir/$pic_object" + fi + + # Add non-PIC object to the list of files to remove. + if test -n "$non_pic_object" && test none != "$non_pic_object"; then + func_append rmfiles " $dir/$non_pic_object" + fi + fi + ;; + + *) + if test clean = "$opt_mode"; then + noexename=$name + case $file in + *.exe) + func_stripname '' '.exe' "$file" + file=$func_stripname_result + func_stripname '' '.exe' "$name" + noexename=$func_stripname_result + # $file with .exe has already been added to rmfiles, + # add $file without .exe + func_append rmfiles " $file" + ;; + esac + # Do a test to see if this is a libtool program. + if func_ltwrapper_p "$file"; then + if func_ltwrapper_executable_p "$file"; then + func_ltwrapper_scriptname "$file" + relink_command= + func_source $func_ltwrapper_scriptname_result + func_append rmfiles " $func_ltwrapper_scriptname_result" + else + relink_command= + func_source $dir/$noexename + fi + + # note $name still contains .exe if it was in $file originally + # as does the version of $file that was added into $rmfiles + func_append rmfiles " $odir/$name $odir/${name}S.$objext" + if test yes = "$fast_install" && test -n "$relink_command"; then + func_append rmfiles " $odir/lt-$name" + fi + if test "X$noexename" != "X$name"; then + func_append rmfiles " $odir/lt-$noexename.c" + fi + fi + fi + ;; + esac + func_show_eval "$RM $rmfiles" 'exit_status=1' + done + + # Try to remove the $objdir's in the directories where we deleted files + for dir in $rmdirs; do + if test -d "$dir"; then + func_show_eval "rmdir $dir >/dev/null 2>&1" + fi + done + + exit $exit_status +} + +if test uninstall = "$opt_mode" || test clean = "$opt_mode"; then + func_mode_uninstall ${1+"$@"} +fi + +test -z "$opt_mode" && { + help=$generic_help + func_fatal_help "you must specify a MODE" +} + +test -z "$exec_cmd" && \ + func_fatal_help "invalid operation mode '$opt_mode'" + +if test -n "$exec_cmd"; then + eval exec "$exec_cmd" + exit $EXIT_FAILURE +fi + +exit $exit_status + + +# The TAGs below are defined such that we never get into a situation +# where we disable both kinds of libraries. Given conflicting +# choices, we go for a static library, that is the most portable, +# since we can't tell whether shared libraries were disabled because +# the user asked for that or because the platform doesn't support +# them. This is particularly important on AIX, because we don't +# support having both static and shared libraries enabled at the same +# time on that platform, so we default to a shared-only configuration. +# If a disable-shared tag is given, we'll fallback to a static-only +# configuration. But we'll never go from static-only to shared-only. + +# ### BEGIN LIBTOOL TAG CONFIG: disable-shared +build_libtool_libs=no +build_old_libs=yes +# ### END LIBTOOL TAG CONFIG: disable-shared + +# ### BEGIN LIBTOOL TAG CONFIG: disable-static +build_old_libs=`case $build_libtool_libs in yes) echo no;; *) echo yes;; esac` +# ### END LIBTOOL TAG CONFIG: disable-static + +# Local Variables: +# mode:shell-script +# sh-indentation:2 +# End: diff --git a/m4/.gitignore b/m4/.gitignore new file mode 100644 index 0000000..464ba5c --- /dev/null +++ b/m4/.gitignore @@ -0,0 +1,5 @@ +libtool.m4 +lt~obsolete.m4 +ltoptions.m4 +ltsugar.m4 +ltversion.m4 diff --git a/m4/ax_pthread.m4 b/m4/ax_pthread.m4 new file mode 100644 index 0000000..5fbf9fe --- /dev/null +++ b/m4/ax_pthread.m4 @@ -0,0 +1,485 @@ +# =========================================================================== +# https://www.gnu.org/software/autoconf-archive/ax_pthread.html +# =========================================================================== +# +# SYNOPSIS +# +# AX_PTHREAD([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]]) +# +# DESCRIPTION +# +# This macro figures out how to build C programs using POSIX threads. It +# sets the PTHREAD_LIBS output variable to the threads library and linker +# flags, and the PTHREAD_CFLAGS output variable to any special C compiler +# flags that are needed. (The user can also force certain compiler +# flags/libs to be tested by setting these environment variables.) +# +# Also sets PTHREAD_CC to any special C compiler that is needed for +# multi-threaded programs (defaults to the value of CC otherwise). (This +# is necessary on AIX to use the special cc_r compiler alias.) +# +# NOTE: You are assumed to not only compile your program with these flags, +# but also to link with them as well. For example, you might link with +# $PTHREAD_CC $CFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS $LIBS +# +# If you are only building threaded programs, you may wish to use these +# variables in your default LIBS, CFLAGS, and CC: +# +# LIBS="$PTHREAD_LIBS $LIBS" +# CFLAGS="$CFLAGS $PTHREAD_CFLAGS" +# CC="$PTHREAD_CC" +# +# In addition, if the PTHREAD_CREATE_JOINABLE thread-attribute constant +# has a nonstandard name, this macro defines PTHREAD_CREATE_JOINABLE to +# that name (e.g. PTHREAD_CREATE_UNDETACHED on AIX). +# +# Also HAVE_PTHREAD_PRIO_INHERIT is defined if pthread is found and the +# PTHREAD_PRIO_INHERIT symbol is defined when compiling with +# PTHREAD_CFLAGS. +# +# ACTION-IF-FOUND is a list of shell commands to run if a threads library +# is found, and ACTION-IF-NOT-FOUND is a list of commands to run it if it +# is not found. If ACTION-IF-FOUND is not specified, the default action +# will define HAVE_PTHREAD. +# +# Please let the authors know if this macro fails on any platform, or if +# you have any other suggestions or comments. This macro was based on work +# by SGJ on autoconf scripts for FFTW (http://www.fftw.org/) (with help +# from M. Frigo), as well as ac_pthread and hb_pthread macros posted by +# Alejandro Forero Cuervo to the autoconf macro repository. We are also +# grateful for the helpful feedback of numerous users. +# +# Updated for Autoconf 2.68 by Daniel Richard G. +# +# LICENSE +# +# Copyright (c) 2008 Steven G. Johnson +# Copyright (c) 2011 Daniel Richard G. +# +# This program is free software: you can redistribute it and/or modify it +# under the terms of the GNU General Public License as published by the +# Free Software Foundation, either version 3 of the License, or (at your +# option) any later version. +# +# This program is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General +# Public License for more details. +# +# You should have received a copy of the GNU General Public License along +# with this program. If not, see . +# +# As a special exception, the respective Autoconf Macro's copyright owner +# gives unlimited permission to copy, distribute and modify the configure +# scripts that are the output of Autoconf when processing the Macro. You +# need not follow the terms of the GNU General Public License when using +# or distributing such scripts, even though portions of the text of the +# Macro appear in them. The GNU General Public License (GPL) does govern +# all other use of the material that constitutes the Autoconf Macro. +# +# This special exception to the GPL applies to versions of the Autoconf +# Macro released by the Autoconf Archive. When you make and distribute a +# modified version of the Autoconf Macro, you may extend this special +# exception to the GPL to apply to your modified version as well. + +#serial 24 + +AU_ALIAS([ACX_PTHREAD], [AX_PTHREAD]) +AC_DEFUN([AX_PTHREAD], [ +AC_REQUIRE([AC_CANONICAL_HOST]) +AC_REQUIRE([AC_PROG_CC]) +AC_REQUIRE([AC_PROG_SED]) +AC_LANG_PUSH([C]) +ax_pthread_ok=no + +# We used to check for pthread.h first, but this fails if pthread.h +# requires special compiler flags (e.g. on Tru64 or Sequent). +# It gets checked for in the link test anyway. + +# First of all, check if the user has set any of the PTHREAD_LIBS, +# etcetera environment variables, and if threads linking works using +# them: +if test "x$PTHREAD_CFLAGS$PTHREAD_LIBS" != "x"; then + ax_pthread_save_CC="$CC" + ax_pthread_save_CFLAGS="$CFLAGS" + ax_pthread_save_LIBS="$LIBS" + AS_IF([test "x$PTHREAD_CC" != "x"], [CC="$PTHREAD_CC"]) + CFLAGS="$CFLAGS $PTHREAD_CFLAGS" + LIBS="$PTHREAD_LIBS $LIBS" + AC_MSG_CHECKING([for pthread_join using $CC $PTHREAD_CFLAGS $PTHREAD_LIBS]) + AC_LINK_IFELSE([AC_LANG_CALL([], [pthread_join])], [ax_pthread_ok=yes]) + AC_MSG_RESULT([$ax_pthread_ok]) + if test "x$ax_pthread_ok" = "xno"; then + PTHREAD_LIBS="" + PTHREAD_CFLAGS="" + fi + CC="$ax_pthread_save_CC" + CFLAGS="$ax_pthread_save_CFLAGS" + LIBS="$ax_pthread_save_LIBS" +fi + +# We must check for the threads library under a number of different +# names; the ordering is very important because some systems +# (e.g. DEC) have both -lpthread and -lpthreads, where one of the +# libraries is broken (non-POSIX). + +# Create a list of thread flags to try. Items starting with a "-" are +# C compiler flags, and other items are library names, except for "none" +# which indicates that we try without any flags at all, and "pthread-config" +# which is a program returning the flags for the Pth emulation library. + +ax_pthread_flags="pthreads none -Kthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config" + +# The ordering *is* (sometimes) important. Some notes on the +# individual items follow: + +# pthreads: AIX (must check this before -lpthread) +# none: in case threads are in libc; should be tried before -Kthread and +# other compiler flags to prevent continual compiler warnings +# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h) +# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads), Tru64 +# (Note: HP C rejects this with "bad form for `-t' option") +# -pthreads: Solaris/gcc (Note: HP C also rejects) +# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it +# doesn't hurt to check since this sometimes defines pthreads and +# -D_REENTRANT too), HP C (must be checked before -lpthread, which +# is present but should not be used directly; and before -mthreads, +# because the compiler interprets this as "-mt" + "-hreads") +# -mthreads: Mingw32/gcc, Lynx/gcc +# pthread: Linux, etcetera +# --thread-safe: KAI C++ +# pthread-config: use pthread-config program (for GNU Pth library) + +case $host_os in + + freebsd*) + + # -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able) + # lthread: LinuxThreads port on FreeBSD (also preferred to -pthread) + + ax_pthread_flags="-kthread lthread $ax_pthread_flags" + ;; + + hpux*) + + # From the cc(1) man page: "[-mt] Sets various -D flags to enable + # multi-threading and also sets -lpthread." + + ax_pthread_flags="-mt -pthread pthread $ax_pthread_flags" + ;; + + openedition*) + + # IBM z/OS requires a feature-test macro to be defined in order to + # enable POSIX threads at all, so give the user a hint if this is + # not set. (We don't define these ourselves, as they can affect + # other portions of the system API in unpredictable ways.) + + AC_EGREP_CPP([AX_PTHREAD_ZOS_MISSING], + [ +# if !defined(_OPEN_THREADS) && !defined(_UNIX03_THREADS) + AX_PTHREAD_ZOS_MISSING +# endif + ], + [AC_MSG_WARN([IBM z/OS requires -D_OPEN_THREADS or -D_UNIX03_THREADS to enable pthreads support.])]) + ;; + + solaris*) + + # On Solaris (at least, for some versions), libc contains stubbed + # (non-functional) versions of the pthreads routines, so link-based + # tests will erroneously succeed. (N.B.: The stubs are missing + # pthread_cleanup_push, or rather a function called by this macro, + # so we could check for that, but who knows whether they'll stub + # that too in a future libc.) So we'll check first for the + # standard Solaris way of linking pthreads (-mt -lpthread). + + ax_pthread_flags="-mt,pthread pthread $ax_pthread_flags" + ;; +esac + +# GCC generally uses -pthread, or -pthreads on some platforms (e.g. SPARC) + +AS_IF([test "x$GCC" = "xyes"], + [ax_pthread_flags="-pthread -pthreads $ax_pthread_flags"]) + +# The presence of a feature test macro requesting re-entrant function +# definitions is, on some systems, a strong hint that pthreads support is +# correctly enabled + +case $host_os in + darwin* | hpux* | linux* | osf* | solaris*) + ax_pthread_check_macro="_REENTRANT" + ;; + + aix*) + ax_pthread_check_macro="_THREAD_SAFE" + ;; + + *) + ax_pthread_check_macro="--" + ;; +esac +AS_IF([test "x$ax_pthread_check_macro" = "x--"], + [ax_pthread_check_cond=0], + [ax_pthread_check_cond="!defined($ax_pthread_check_macro)"]) + +# Are we compiling with Clang? + +AC_CACHE_CHECK([whether $CC is Clang], + [ax_cv_PTHREAD_CLANG], + [ax_cv_PTHREAD_CLANG=no + # Note that Autoconf sets GCC=yes for Clang as well as GCC + if test "x$GCC" = "xyes"; then + AC_EGREP_CPP([AX_PTHREAD_CC_IS_CLANG], + [/* Note: Clang 2.7 lacks __clang_[a-z]+__ */ +# if defined(__clang__) && defined(__llvm__) + AX_PTHREAD_CC_IS_CLANG +# endif + ], + [ax_cv_PTHREAD_CLANG=yes]) + fi + ]) +ax_pthread_clang="$ax_cv_PTHREAD_CLANG" + +ax_pthread_clang_warning=no + +# Clang needs special handling, because older versions handle the -pthread +# option in a rather... idiosyncratic way + +if test "x$ax_pthread_clang" = "xyes"; then + + # Clang takes -pthread; it has never supported any other flag + + # (Note 1: This will need to be revisited if a system that Clang + # supports has POSIX threads in a separate library. This tends not + # to be the way of modern systems, but it's conceivable.) + + # (Note 2: On some systems, notably Darwin, -pthread is not needed + # to get POSIX threads support; the API is always present and + # active. We could reasonably leave PTHREAD_CFLAGS empty. But + # -pthread does define _REENTRANT, and while the Darwin headers + # ignore this macro, third-party headers might not.) + + PTHREAD_CFLAGS="-pthread" + PTHREAD_LIBS= + + ax_pthread_ok=yes + + # However, older versions of Clang make a point of warning the user + # that, in an invocation where only linking and no compilation is + # taking place, the -pthread option has no effect ("argument unused + # during compilation"). They expect -pthread to be passed in only + # when source code is being compiled. + # + # Problem is, this is at odds with the way Automake and most other + # C build frameworks function, which is that the same flags used in + # compilation (CFLAGS) are also used in linking. Many systems + # supported by AX_PTHREAD require exactly this for POSIX threads + # support, and in fact it is often not straightforward to specify a + # flag that is used only in the compilation phase and not in + # linking. Such a scenario is extremely rare in practice. + # + # Even though use of the -pthread flag in linking would only print + # a warning, this can be a nuisance for well-run software projects + # that build with -Werror. So if the active version of Clang has + # this misfeature, we search for an option to squash it. + + AC_CACHE_CHECK([whether Clang needs flag to prevent "argument unused" warning when linking with -pthread], + [ax_cv_PTHREAD_CLANG_NO_WARN_FLAG], + [ax_cv_PTHREAD_CLANG_NO_WARN_FLAG=unknown + # Create an alternate version of $ac_link that compiles and + # links in two steps (.c -> .o, .o -> exe) instead of one + # (.c -> exe), because the warning occurs only in the second + # step + ax_pthread_save_ac_link="$ac_link" + ax_pthread_sed='s/conftest\.\$ac_ext/conftest.$ac_objext/g' + ax_pthread_link_step=`$as_echo "$ac_link" | sed "$ax_pthread_sed"` + ax_pthread_2step_ac_link="($ac_compile) && (echo ==== >&5) && ($ax_pthread_link_step)" + ax_pthread_save_CFLAGS="$CFLAGS" + for ax_pthread_try in '' -Qunused-arguments -Wno-unused-command-line-argument unknown; do + AS_IF([test "x$ax_pthread_try" = "xunknown"], [break]) + CFLAGS="-Werror -Wunknown-warning-option $ax_pthread_try -pthread $ax_pthread_save_CFLAGS" + ac_link="$ax_pthread_save_ac_link" + AC_LINK_IFELSE([AC_LANG_SOURCE([[int main(void){return 0;}]])], + [ac_link="$ax_pthread_2step_ac_link" + AC_LINK_IFELSE([AC_LANG_SOURCE([[int main(void){return 0;}]])], + [break]) + ]) + done + ac_link="$ax_pthread_save_ac_link" + CFLAGS="$ax_pthread_save_CFLAGS" + AS_IF([test "x$ax_pthread_try" = "x"], [ax_pthread_try=no]) + ax_cv_PTHREAD_CLANG_NO_WARN_FLAG="$ax_pthread_try" + ]) + + case "$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG" in + no | unknown) ;; + *) PTHREAD_CFLAGS="$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG $PTHREAD_CFLAGS" ;; + esac + +fi # $ax_pthread_clang = yes + +if test "x$ax_pthread_ok" = "xno"; then +for ax_pthread_try_flag in $ax_pthread_flags; do + + case $ax_pthread_try_flag in + none) + AC_MSG_CHECKING([whether pthreads work without any flags]) + ;; + + -mt,pthread) + AC_MSG_CHECKING([whether pthreads work with -mt -lpthread]) + PTHREAD_CFLAGS="-mt" + PTHREAD_LIBS="-lpthread" + ;; + + -*) + AC_MSG_CHECKING([whether pthreads work with $ax_pthread_try_flag]) + PTHREAD_CFLAGS="$ax_pthread_try_flag" + ;; + + pthread-config) + AC_CHECK_PROG([ax_pthread_config], [pthread-config], [yes], [no]) + AS_IF([test "x$ax_pthread_config" = "xno"], [continue]) + PTHREAD_CFLAGS="`pthread-config --cflags`" + PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`" + ;; + + *) + AC_MSG_CHECKING([for the pthreads library -l$ax_pthread_try_flag]) + PTHREAD_LIBS="-l$ax_pthread_try_flag" + ;; + esac + + ax_pthread_save_CFLAGS="$CFLAGS" + ax_pthread_save_LIBS="$LIBS" + CFLAGS="$CFLAGS $PTHREAD_CFLAGS" + LIBS="$PTHREAD_LIBS $LIBS" + + # Check for various functions. We must include pthread.h, + # since some functions may be macros. (On the Sequent, we + # need a special flag -Kthread to make this header compile.) + # We check for pthread_join because it is in -lpthread on IRIX + # while pthread_create is in libc. We check for pthread_attr_init + # due to DEC craziness with -lpthreads. We check for + # pthread_cleanup_push because it is one of the few pthread + # functions on Solaris that doesn't have a non-functional libc stub. + # We try pthread_create on general principles. + + AC_LINK_IFELSE([AC_LANG_PROGRAM([#include +# if $ax_pthread_check_cond +# error "$ax_pthread_check_macro must be defined" +# endif + static void routine(void *a) { a = 0; } + static void *start_routine(void *a) { return a; }], + [pthread_t th; pthread_attr_t attr; + pthread_create(&th, 0, start_routine, 0); + pthread_join(th, 0); + pthread_attr_init(&attr); + pthread_cleanup_push(routine, 0); + pthread_cleanup_pop(0) /* ; */])], + [ax_pthread_ok=yes], + []) + + CFLAGS="$ax_pthread_save_CFLAGS" + LIBS="$ax_pthread_save_LIBS" + + AC_MSG_RESULT([$ax_pthread_ok]) + AS_IF([test "x$ax_pthread_ok" = "xyes"], [break]) + + PTHREAD_LIBS="" + PTHREAD_CFLAGS="" +done +fi + +# Various other checks: +if test "x$ax_pthread_ok" = "xyes"; then + ax_pthread_save_CFLAGS="$CFLAGS" + ax_pthread_save_LIBS="$LIBS" + CFLAGS="$CFLAGS $PTHREAD_CFLAGS" + LIBS="$PTHREAD_LIBS $LIBS" + + # Detect AIX lossage: JOINABLE attribute is called UNDETACHED. + AC_CACHE_CHECK([for joinable pthread attribute], + [ax_cv_PTHREAD_JOINABLE_ATTR], + [ax_cv_PTHREAD_JOINABLE_ATTR=unknown + for ax_pthread_attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do + AC_LINK_IFELSE([AC_LANG_PROGRAM([#include ], + [int attr = $ax_pthread_attr; return attr /* ; */])], + [ax_cv_PTHREAD_JOINABLE_ATTR=$ax_pthread_attr; break], + []) + done + ]) + AS_IF([test "x$ax_cv_PTHREAD_JOINABLE_ATTR" != "xunknown" && \ + test "x$ax_cv_PTHREAD_JOINABLE_ATTR" != "xPTHREAD_CREATE_JOINABLE" && \ + test "x$ax_pthread_joinable_attr_defined" != "xyes"], + [AC_DEFINE_UNQUOTED([PTHREAD_CREATE_JOINABLE], + [$ax_cv_PTHREAD_JOINABLE_ATTR], + [Define to necessary symbol if this constant + uses a non-standard name on your system.]) + ax_pthread_joinable_attr_defined=yes + ]) + + AC_CACHE_CHECK([whether more special flags are required for pthreads], + [ax_cv_PTHREAD_SPECIAL_FLAGS], + [ax_cv_PTHREAD_SPECIAL_FLAGS=no + case $host_os in + solaris*) + ax_cv_PTHREAD_SPECIAL_FLAGS="-D_POSIX_PTHREAD_SEMANTICS" + ;; + esac + ]) + AS_IF([test "x$ax_cv_PTHREAD_SPECIAL_FLAGS" != "xno" && \ + test "x$ax_pthread_special_flags_added" != "xyes"], + [PTHREAD_CFLAGS="$ax_cv_PTHREAD_SPECIAL_FLAGS $PTHREAD_CFLAGS" + ax_pthread_special_flags_added=yes]) + + AC_CACHE_CHECK([for PTHREAD_PRIO_INHERIT], + [ax_cv_PTHREAD_PRIO_INHERIT], + [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include ]], + [[int i = PTHREAD_PRIO_INHERIT;]])], + [ax_cv_PTHREAD_PRIO_INHERIT=yes], + [ax_cv_PTHREAD_PRIO_INHERIT=no]) + ]) + AS_IF([test "x$ax_cv_PTHREAD_PRIO_INHERIT" = "xyes" && \ + test "x$ax_pthread_prio_inherit_defined" != "xyes"], + [AC_DEFINE([HAVE_PTHREAD_PRIO_INHERIT], [1], [Have PTHREAD_PRIO_INHERIT.]) + ax_pthread_prio_inherit_defined=yes + ]) + + CFLAGS="$ax_pthread_save_CFLAGS" + LIBS="$ax_pthread_save_LIBS" + + # More AIX lossage: compile with *_r variant + if test "x$GCC" != "xyes"; then + case $host_os in + aix*) + AS_CASE(["x/$CC"], + [x*/c89|x*/c89_128|x*/c99|x*/c99_128|x*/cc|x*/cc128|x*/xlc|x*/xlc_v6|x*/xlc128|x*/xlc128_v6], + [#handle absolute path differently from PATH based program lookup + AS_CASE(["x$CC"], + [x/*], + [AS_IF([AS_EXECUTABLE_P([${CC}_r])],[PTHREAD_CC="${CC}_r"])], + [AC_CHECK_PROGS([PTHREAD_CC],[${CC}_r],[$CC])])]) + ;; + esac + fi +fi + +test -n "$PTHREAD_CC" || PTHREAD_CC="$CC" + +AC_SUBST([PTHREAD_LIBS]) +AC_SUBST([PTHREAD_CFLAGS]) +AC_SUBST([PTHREAD_CC]) + +# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND: +if test "x$ax_pthread_ok" = "xyes"; then + ifelse([$1],,[AC_DEFINE([HAVE_PTHREAD],[1],[Define if you have POSIX threads libraries and header files.])],[$1]) + : +else + ax_pthread_ok=no + $2 +fi +AC_LANG_POP +])dnl AX_PTHREAD diff --git a/m4/libtool.m4 b/m4/libtool.m4 new file mode 100644 index 0000000..a644432 --- /dev/null +++ b/m4/libtool.m4 @@ -0,0 +1,8372 @@ +# libtool.m4 - Configure libtool for the host system. -*-Autoconf-*- +# +# Copyright (C) 1996-2001, 2003-2015 Free Software Foundation, Inc. +# Written by Gordon Matzigkeit, 1996 +# +# This file is free software; the Free Software Foundation gives +# unlimited permission to copy and/or distribute it, with or without +# modifications, as long as this notice is preserved. + +m4_define([_LT_COPYING], [dnl +# Copyright (C) 2014 Free Software Foundation, Inc. +# This is free software; see the source for copying conditions. There is NO +# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + +# GNU Libtool is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of of the License, or +# (at your option) any later version. +# +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program or library that is built +# using GNU Libtool, you may include this file under the same +# distribution terms that you use for the rest of that program. +# +# GNU Libtool is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . +]) + +# serial 58 LT_INIT + + +# LT_PREREQ(VERSION) +# ------------------ +# Complain and exit if this libtool version is less that VERSION. +m4_defun([LT_PREREQ], +[m4_if(m4_version_compare(m4_defn([LT_PACKAGE_VERSION]), [$1]), -1, + [m4_default([$3], + [m4_fatal([Libtool version $1 or higher is required], + 63)])], + [$2])]) + + +# _LT_CHECK_BUILDDIR +# ------------------ +# Complain if the absolute build directory name contains unusual characters +m4_defun([_LT_CHECK_BUILDDIR], +[case `pwd` in + *\ * | *\ *) + AC_MSG_WARN([Libtool does not cope well with whitespace in `pwd`]) ;; +esac +]) + + +# LT_INIT([OPTIONS]) +# ------------------ +AC_DEFUN([LT_INIT], +[AC_PREREQ([2.62])dnl We use AC_PATH_PROGS_FEATURE_CHECK +AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl +AC_BEFORE([$0], [LT_LANG])dnl +AC_BEFORE([$0], [LT_OUTPUT])dnl +AC_BEFORE([$0], [LTDL_INIT])dnl +m4_require([_LT_CHECK_BUILDDIR])dnl + +dnl Autoconf doesn't catch unexpanded LT_ macros by default: +m4_pattern_forbid([^_?LT_[A-Z_]+$])dnl +m4_pattern_allow([^(_LT_EOF|LT_DLGLOBAL|LT_DLLAZY_OR_NOW|LT_MULTI_MODULE)$])dnl +dnl aclocal doesn't pull ltoptions.m4, ltsugar.m4, or ltversion.m4 +dnl unless we require an AC_DEFUNed macro: +AC_REQUIRE([LTOPTIONS_VERSION])dnl +AC_REQUIRE([LTSUGAR_VERSION])dnl +AC_REQUIRE([LTVERSION_VERSION])dnl +AC_REQUIRE([LTOBSOLETE_VERSION])dnl +m4_require([_LT_PROG_LTMAIN])dnl + +_LT_SHELL_INIT([SHELL=${CONFIG_SHELL-/bin/sh}]) + +dnl Parse OPTIONS +_LT_SET_OPTIONS([$0], [$1]) + +# This can be used to rebuild libtool when needed +LIBTOOL_DEPS=$ltmain + +# Always use our own libtool. +LIBTOOL='$(SHELL) $(top_builddir)/libtool' +AC_SUBST(LIBTOOL)dnl + +_LT_SETUP + +# Only expand once: +m4_define([LT_INIT]) +])# LT_INIT + +# Old names: +AU_ALIAS([AC_PROG_LIBTOOL], [LT_INIT]) +AU_ALIAS([AM_PROG_LIBTOOL], [LT_INIT]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_PROG_LIBTOOL], []) +dnl AC_DEFUN([AM_PROG_LIBTOOL], []) + + +# _LT_PREPARE_CC_BASENAME +# ----------------------- +m4_defun([_LT_PREPARE_CC_BASENAME], [ +# Calculate cc_basename. Skip known compiler wrappers and cross-prefix. +func_cc_basename () +{ + for cc_temp in @S|@*""; do + case $cc_temp in + compile | *[[\\/]]compile | ccache | *[[\\/]]ccache ) ;; + distcc | *[[\\/]]distcc | purify | *[[\\/]]purify ) ;; + \-*) ;; + *) break;; + esac + done + func_cc_basename_result=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"` +} +])# _LT_PREPARE_CC_BASENAME + + +# _LT_CC_BASENAME(CC) +# ------------------- +# It would be clearer to call AC_REQUIREs from _LT_PREPARE_CC_BASENAME, +# but that macro is also expanded into generated libtool script, which +# arranges for $SED and $ECHO to be set by different means. +m4_defun([_LT_CC_BASENAME], +[m4_require([_LT_PREPARE_CC_BASENAME])dnl +AC_REQUIRE([_LT_DECL_SED])dnl +AC_REQUIRE([_LT_PROG_ECHO_BACKSLASH])dnl +func_cc_basename $1 +cc_basename=$func_cc_basename_result +]) + + +# _LT_FILEUTILS_DEFAULTS +# ---------------------- +# It is okay to use these file commands and assume they have been set +# sensibly after 'm4_require([_LT_FILEUTILS_DEFAULTS])'. +m4_defun([_LT_FILEUTILS_DEFAULTS], +[: ${CP="cp -f"} +: ${MV="mv -f"} +: ${RM="rm -f"} +])# _LT_FILEUTILS_DEFAULTS + + +# _LT_SETUP +# --------- +m4_defun([_LT_SETUP], +[AC_REQUIRE([AC_CANONICAL_HOST])dnl +AC_REQUIRE([AC_CANONICAL_BUILD])dnl +AC_REQUIRE([_LT_PREPARE_SED_QUOTE_VARS])dnl +AC_REQUIRE([_LT_PROG_ECHO_BACKSLASH])dnl + +_LT_DECL([], [PATH_SEPARATOR], [1], [The PATH separator for the build system])dnl +dnl +_LT_DECL([], [host_alias], [0], [The host system])dnl +_LT_DECL([], [host], [0])dnl +_LT_DECL([], [host_os], [0])dnl +dnl +_LT_DECL([], [build_alias], [0], [The build system])dnl +_LT_DECL([], [build], [0])dnl +_LT_DECL([], [build_os], [0])dnl +dnl +AC_REQUIRE([AC_PROG_CC])dnl +AC_REQUIRE([LT_PATH_LD])dnl +AC_REQUIRE([LT_PATH_NM])dnl +dnl +AC_REQUIRE([AC_PROG_LN_S])dnl +test -z "$LN_S" && LN_S="ln -s" +_LT_DECL([], [LN_S], [1], [Whether we need soft or hard links])dnl +dnl +AC_REQUIRE([LT_CMD_MAX_LEN])dnl +_LT_DECL([objext], [ac_objext], [0], [Object file suffix (normally "o")])dnl +_LT_DECL([], [exeext], [0], [Executable file suffix (normally "")])dnl +dnl +m4_require([_LT_FILEUTILS_DEFAULTS])dnl +m4_require([_LT_CHECK_SHELL_FEATURES])dnl +m4_require([_LT_PATH_CONVERSION_FUNCTIONS])dnl +m4_require([_LT_CMD_RELOAD])dnl +m4_require([_LT_CHECK_MAGIC_METHOD])dnl +m4_require([_LT_CHECK_SHAREDLIB_FROM_LINKLIB])dnl +m4_require([_LT_CMD_OLD_ARCHIVE])dnl +m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl +m4_require([_LT_WITH_SYSROOT])dnl +m4_require([_LT_CMD_TRUNCATE])dnl + +_LT_CONFIG_LIBTOOL_INIT([ +# See if we are running on zsh, and set the options that allow our +# commands through without removal of \ escapes INIT. +if test -n "\${ZSH_VERSION+set}"; then + setopt NO_GLOB_SUBST +fi +]) +if test -n "${ZSH_VERSION+set}"; then + setopt NO_GLOB_SUBST +fi + +_LT_CHECK_OBJDIR + +m4_require([_LT_TAG_COMPILER])dnl + +case $host_os in +aix3*) + # AIX sometimes has problems with the GCC collect2 program. For some + # reason, if we set the COLLECT_NAMES environment variable, the problems + # vanish in a puff of smoke. + if test set != "${COLLECT_NAMES+set}"; then + COLLECT_NAMES= + export COLLECT_NAMES + fi + ;; +esac + +# Global variables: +ofile=libtool +can_build_shared=yes + +# All known linkers require a '.a' archive for static linking (except MSVC, +# which needs '.lib'). +libext=a + +with_gnu_ld=$lt_cv_prog_gnu_ld + +old_CC=$CC +old_CFLAGS=$CFLAGS + +# Set sane defaults for various variables +test -z "$CC" && CC=cc +test -z "$LTCC" && LTCC=$CC +test -z "$LTCFLAGS" && LTCFLAGS=$CFLAGS +test -z "$LD" && LD=ld +test -z "$ac_objext" && ac_objext=o + +_LT_CC_BASENAME([$compiler]) + +# Only perform the check for file, if the check method requires it +test -z "$MAGIC_CMD" && MAGIC_CMD=file +case $deplibs_check_method in +file_magic*) + if test "$file_magic_cmd" = '$MAGIC_CMD'; then + _LT_PATH_MAGIC + fi + ;; +esac + +# Use C for the default configuration in the libtool script +LT_SUPPORTED_TAG([CC]) +_LT_LANG_C_CONFIG +_LT_LANG_DEFAULT_CONFIG +_LT_CONFIG_COMMANDS +])# _LT_SETUP + + +# _LT_PREPARE_SED_QUOTE_VARS +# -------------------------- +# Define a few sed substitution that help us do robust quoting. +m4_defun([_LT_PREPARE_SED_QUOTE_VARS], +[# Backslashify metacharacters that are still active within +# double-quoted strings. +sed_quote_subst='s/\([["`$\\]]\)/\\\1/g' + +# Same as above, but do not quote variable references. +double_quote_subst='s/\([["`\\]]\)/\\\1/g' + +# Sed substitution to delay expansion of an escaped shell variable in a +# double_quote_subst'ed string. +delay_variable_subst='s/\\\\\\\\\\\$/\\\\\\$/g' + +# Sed substitution to delay expansion of an escaped single quote. +delay_single_quote_subst='s/'\''/'\'\\\\\\\'\''/g' + +# Sed substitution to avoid accidental globbing in evaled expressions +no_glob_subst='s/\*/\\\*/g' +]) + +# _LT_PROG_LTMAIN +# --------------- +# Note that this code is called both from 'configure', and 'config.status' +# now that we use AC_CONFIG_COMMANDS to generate libtool. Notably, +# 'config.status' has no value for ac_aux_dir unless we are using Automake, +# so we pass a copy along to make sure it has a sensible value anyway. +m4_defun([_LT_PROG_LTMAIN], +[m4_ifdef([AC_REQUIRE_AUX_FILE], [AC_REQUIRE_AUX_FILE([ltmain.sh])])dnl +_LT_CONFIG_LIBTOOL_INIT([ac_aux_dir='$ac_aux_dir']) +ltmain=$ac_aux_dir/ltmain.sh +])# _LT_PROG_LTMAIN + + +## ------------------------------------- ## +## Accumulate code for creating libtool. ## +## ------------------------------------- ## + +# So that we can recreate a full libtool script including additional +# tags, we accumulate the chunks of code to send to AC_CONFIG_COMMANDS +# in macros and then make a single call at the end using the 'libtool' +# label. + + +# _LT_CONFIG_LIBTOOL_INIT([INIT-COMMANDS]) +# ---------------------------------------- +# Register INIT-COMMANDS to be passed to AC_CONFIG_COMMANDS later. +m4_define([_LT_CONFIG_LIBTOOL_INIT], +[m4_ifval([$1], + [m4_append([_LT_OUTPUT_LIBTOOL_INIT], + [$1 +])])]) + +# Initialize. +m4_define([_LT_OUTPUT_LIBTOOL_INIT]) + + +# _LT_CONFIG_LIBTOOL([COMMANDS]) +# ------------------------------ +# Register COMMANDS to be passed to AC_CONFIG_COMMANDS later. +m4_define([_LT_CONFIG_LIBTOOL], +[m4_ifval([$1], + [m4_append([_LT_OUTPUT_LIBTOOL_COMMANDS], + [$1 +])])]) + +# Initialize. +m4_define([_LT_OUTPUT_LIBTOOL_COMMANDS]) + + +# _LT_CONFIG_SAVE_COMMANDS([COMMANDS], [INIT_COMMANDS]) +# ----------------------------------------------------- +m4_defun([_LT_CONFIG_SAVE_COMMANDS], +[_LT_CONFIG_LIBTOOL([$1]) +_LT_CONFIG_LIBTOOL_INIT([$2]) +]) + + +# _LT_FORMAT_COMMENT([COMMENT]) +# ----------------------------- +# Add leading comment marks to the start of each line, and a trailing +# full-stop to the whole comment if one is not present already. +m4_define([_LT_FORMAT_COMMENT], +[m4_ifval([$1], [ +m4_bpatsubst([m4_bpatsubst([$1], [^ *], [# ])], + [['`$\]], [\\\&])]m4_bmatch([$1], [[!?.]$], [], [.]) +)]) + + + +## ------------------------ ## +## FIXME: Eliminate VARNAME ## +## ------------------------ ## + + +# _LT_DECL([CONFIGNAME], VARNAME, VALUE, [DESCRIPTION], [IS-TAGGED?]) +# ------------------------------------------------------------------- +# CONFIGNAME is the name given to the value in the libtool script. +# VARNAME is the (base) name used in the configure script. +# VALUE may be 0, 1 or 2 for a computed quote escaped value based on +# VARNAME. Any other value will be used directly. +m4_define([_LT_DECL], +[lt_if_append_uniq([lt_decl_varnames], [$2], [, ], + [lt_dict_add_subkey([lt_decl_dict], [$2], [libtool_name], + [m4_ifval([$1], [$1], [$2])]) + lt_dict_add_subkey([lt_decl_dict], [$2], [value], [$3]) + m4_ifval([$4], + [lt_dict_add_subkey([lt_decl_dict], [$2], [description], [$4])]) + lt_dict_add_subkey([lt_decl_dict], [$2], + [tagged?], [m4_ifval([$5], [yes], [no])])]) +]) + + +# _LT_TAGDECL([CONFIGNAME], VARNAME, VALUE, [DESCRIPTION]) +# -------------------------------------------------------- +m4_define([_LT_TAGDECL], [_LT_DECL([$1], [$2], [$3], [$4], [yes])]) + + +# lt_decl_tag_varnames([SEPARATOR], [VARNAME1...]) +# ------------------------------------------------ +m4_define([lt_decl_tag_varnames], +[_lt_decl_filter([tagged?], [yes], $@)]) + + +# _lt_decl_filter(SUBKEY, VALUE, [SEPARATOR], [VARNAME1..]) +# --------------------------------------------------------- +m4_define([_lt_decl_filter], +[m4_case([$#], + [0], [m4_fatal([$0: too few arguments: $#])], + [1], [m4_fatal([$0: too few arguments: $#: $1])], + [2], [lt_dict_filter([lt_decl_dict], [$1], [$2], [], lt_decl_varnames)], + [3], [lt_dict_filter([lt_decl_dict], [$1], [$2], [$3], lt_decl_varnames)], + [lt_dict_filter([lt_decl_dict], $@)])[]dnl +]) + + +# lt_decl_quote_varnames([SEPARATOR], [VARNAME1...]) +# -------------------------------------------------- +m4_define([lt_decl_quote_varnames], +[_lt_decl_filter([value], [1], $@)]) + + +# lt_decl_dquote_varnames([SEPARATOR], [VARNAME1...]) +# --------------------------------------------------- +m4_define([lt_decl_dquote_varnames], +[_lt_decl_filter([value], [2], $@)]) + + +# lt_decl_varnames_tagged([SEPARATOR], [VARNAME1...]) +# --------------------------------------------------- +m4_define([lt_decl_varnames_tagged], +[m4_assert([$# <= 2])dnl +_$0(m4_quote(m4_default([$1], [[, ]])), + m4_ifval([$2], [[$2]], [m4_dquote(lt_decl_tag_varnames)]), + m4_split(m4_normalize(m4_quote(_LT_TAGS)), [ ]))]) +m4_define([_lt_decl_varnames_tagged], +[m4_ifval([$3], [lt_combine([$1], [$2], [_], $3)])]) + + +# lt_decl_all_varnames([SEPARATOR], [VARNAME1...]) +# ------------------------------------------------ +m4_define([lt_decl_all_varnames], +[_$0(m4_quote(m4_default([$1], [[, ]])), + m4_if([$2], [], + m4_quote(lt_decl_varnames), + m4_quote(m4_shift($@))))[]dnl +]) +m4_define([_lt_decl_all_varnames], +[lt_join($@, lt_decl_varnames_tagged([$1], + lt_decl_tag_varnames([[, ]], m4_shift($@))))dnl +]) + + +# _LT_CONFIG_STATUS_DECLARE([VARNAME]) +# ------------------------------------ +# Quote a variable value, and forward it to 'config.status' so that its +# declaration there will have the same value as in 'configure'. VARNAME +# must have a single quote delimited value for this to work. +m4_define([_LT_CONFIG_STATUS_DECLARE], +[$1='`$ECHO "$][$1" | $SED "$delay_single_quote_subst"`']) + + +# _LT_CONFIG_STATUS_DECLARATIONS +# ------------------------------ +# We delimit libtool config variables with single quotes, so when +# we write them to config.status, we have to be sure to quote all +# embedded single quotes properly. In configure, this macro expands +# each variable declared with _LT_DECL (and _LT_TAGDECL) into: +# +# ='`$ECHO "$" | $SED "$delay_single_quote_subst"`' +m4_defun([_LT_CONFIG_STATUS_DECLARATIONS], +[m4_foreach([_lt_var], m4_quote(lt_decl_all_varnames), + [m4_n([_LT_CONFIG_STATUS_DECLARE(_lt_var)])])]) + + +# _LT_LIBTOOL_TAGS +# ---------------- +# Output comment and list of tags supported by the script +m4_defun([_LT_LIBTOOL_TAGS], +[_LT_FORMAT_COMMENT([The names of the tagged configurations supported by this script])dnl +available_tags='_LT_TAGS'dnl +]) + + +# _LT_LIBTOOL_DECLARE(VARNAME, [TAG]) +# ----------------------------------- +# Extract the dictionary values for VARNAME (optionally with TAG) and +# expand to a commented shell variable setting: +# +# # Some comment about what VAR is for. +# visible_name=$lt_internal_name +m4_define([_LT_LIBTOOL_DECLARE], +[_LT_FORMAT_COMMENT(m4_quote(lt_dict_fetch([lt_decl_dict], [$1], + [description])))[]dnl +m4_pushdef([_libtool_name], + m4_quote(lt_dict_fetch([lt_decl_dict], [$1], [libtool_name])))[]dnl +m4_case(m4_quote(lt_dict_fetch([lt_decl_dict], [$1], [value])), + [0], [_libtool_name=[$]$1], + [1], [_libtool_name=$lt_[]$1], + [2], [_libtool_name=$lt_[]$1], + [_libtool_name=lt_dict_fetch([lt_decl_dict], [$1], [value])])[]dnl +m4_ifval([$2], [_$2])[]m4_popdef([_libtool_name])[]dnl +]) + + +# _LT_LIBTOOL_CONFIG_VARS +# ----------------------- +# Produce commented declarations of non-tagged libtool config variables +# suitable for insertion in the LIBTOOL CONFIG section of the 'libtool' +# script. Tagged libtool config variables (even for the LIBTOOL CONFIG +# section) are produced by _LT_LIBTOOL_TAG_VARS. +m4_defun([_LT_LIBTOOL_CONFIG_VARS], +[m4_foreach([_lt_var], + m4_quote(_lt_decl_filter([tagged?], [no], [], lt_decl_varnames)), + [m4_n([_LT_LIBTOOL_DECLARE(_lt_var)])])]) + + +# _LT_LIBTOOL_TAG_VARS(TAG) +# ------------------------- +m4_define([_LT_LIBTOOL_TAG_VARS], +[m4_foreach([_lt_var], m4_quote(lt_decl_tag_varnames), + [m4_n([_LT_LIBTOOL_DECLARE(_lt_var, [$1])])])]) + + +# _LT_TAGVAR(VARNAME, [TAGNAME]) +# ------------------------------ +m4_define([_LT_TAGVAR], [m4_ifval([$2], [$1_$2], [$1])]) + + +# _LT_CONFIG_COMMANDS +# ------------------- +# Send accumulated output to $CONFIG_STATUS. Thanks to the lists of +# variables for single and double quote escaping we saved from calls +# to _LT_DECL, we can put quote escaped variables declarations +# into 'config.status', and then the shell code to quote escape them in +# for loops in 'config.status'. Finally, any additional code accumulated +# from calls to _LT_CONFIG_LIBTOOL_INIT is expanded. +m4_defun([_LT_CONFIG_COMMANDS], +[AC_PROVIDE_IFELSE([LT_OUTPUT], + dnl If the libtool generation code has been placed in $CONFIG_LT, + dnl instead of duplicating it all over again into config.status, + dnl then we will have config.status run $CONFIG_LT later, so it + dnl needs to know what name is stored there: + [AC_CONFIG_COMMANDS([libtool], + [$SHELL $CONFIG_LT || AS_EXIT(1)], [CONFIG_LT='$CONFIG_LT'])], + dnl If the libtool generation code is destined for config.status, + dnl expand the accumulated commands and init code now: + [AC_CONFIG_COMMANDS([libtool], + [_LT_OUTPUT_LIBTOOL_COMMANDS], [_LT_OUTPUT_LIBTOOL_COMMANDS_INIT])]) +])#_LT_CONFIG_COMMANDS + + +# Initialize. +m4_define([_LT_OUTPUT_LIBTOOL_COMMANDS_INIT], +[ + +# The HP-UX ksh and POSIX shell print the target directory to stdout +# if CDPATH is set. +(unset CDPATH) >/dev/null 2>&1 && unset CDPATH + +sed_quote_subst='$sed_quote_subst' +double_quote_subst='$double_quote_subst' +delay_variable_subst='$delay_variable_subst' +_LT_CONFIG_STATUS_DECLARATIONS +LTCC='$LTCC' +LTCFLAGS='$LTCFLAGS' +compiler='$compiler_DEFAULT' + +# A function that is used when there is no print builtin or printf. +func_fallback_echo () +{ + eval 'cat <<_LTECHO_EOF +\$[]1 +_LTECHO_EOF' +} + +# Quote evaled strings. +for var in lt_decl_all_varnames([[ \ +]], lt_decl_quote_varnames); do + case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in + *[[\\\\\\\`\\"\\\$]]*) + eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED \\"\\\$sed_quote_subst\\"\\\`\\\\\\"" ## exclude from sc_prohibit_nested_quotes + ;; + *) + eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\"" + ;; + esac +done + +# Double-quote double-evaled strings. +for var in lt_decl_all_varnames([[ \ +]], lt_decl_dquote_varnames); do + case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in + *[[\\\\\\\`\\"\\\$]]*) + eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED -e \\"\\\$double_quote_subst\\" -e \\"\\\$sed_quote_subst\\" -e \\"\\\$delay_variable_subst\\"\\\`\\\\\\"" ## exclude from sc_prohibit_nested_quotes + ;; + *) + eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\"" + ;; + esac +done + +_LT_OUTPUT_LIBTOOL_INIT +]) + +# _LT_GENERATED_FILE_INIT(FILE, [COMMENT]) +# ------------------------------------ +# Generate a child script FILE with all initialization necessary to +# reuse the environment learned by the parent script, and make the +# file executable. If COMMENT is supplied, it is inserted after the +# '#!' sequence but before initialization text begins. After this +# macro, additional text can be appended to FILE to form the body of +# the child script. The macro ends with non-zero status if the +# file could not be fully written (such as if the disk is full). +m4_ifdef([AS_INIT_GENERATED], +[m4_defun([_LT_GENERATED_FILE_INIT],[AS_INIT_GENERATED($@)])], +[m4_defun([_LT_GENERATED_FILE_INIT], +[m4_require([AS_PREPARE])]dnl +[m4_pushdef([AS_MESSAGE_LOG_FD])]dnl +[lt_write_fail=0 +cat >$1 <<_ASEOF || lt_write_fail=1 +#! $SHELL +# Generated by $as_me. +$2 +SHELL=\${CONFIG_SHELL-$SHELL} +export SHELL +_ASEOF +cat >>$1 <<\_ASEOF || lt_write_fail=1 +AS_SHELL_SANITIZE +_AS_PREPARE +exec AS_MESSAGE_FD>&1 +_ASEOF +test 0 = "$lt_write_fail" && chmod +x $1[]dnl +m4_popdef([AS_MESSAGE_LOG_FD])])])# _LT_GENERATED_FILE_INIT + +# LT_OUTPUT +# --------- +# This macro allows early generation of the libtool script (before +# AC_OUTPUT is called), incase it is used in configure for compilation +# tests. +AC_DEFUN([LT_OUTPUT], +[: ${CONFIG_LT=./config.lt} +AC_MSG_NOTICE([creating $CONFIG_LT]) +_LT_GENERATED_FILE_INIT(["$CONFIG_LT"], +[# Run this file to recreate a libtool stub with the current configuration.]) + +cat >>"$CONFIG_LT" <<\_LTEOF +lt_cl_silent=false +exec AS_MESSAGE_LOG_FD>>config.log +{ + echo + AS_BOX([Running $as_me.]) +} >&AS_MESSAGE_LOG_FD + +lt_cl_help="\ +'$as_me' creates a local libtool stub from the current configuration, +for use in further configure time tests before the real libtool is +generated. + +Usage: $[0] [[OPTIONS]] + + -h, --help print this help, then exit + -V, --version print version number, then exit + -q, --quiet do not print progress messages + -d, --debug don't remove temporary files + +Report bugs to ." + +lt_cl_version="\ +m4_ifset([AC_PACKAGE_NAME], [AC_PACKAGE_NAME ])config.lt[]dnl +m4_ifset([AC_PACKAGE_VERSION], [ AC_PACKAGE_VERSION]) +configured by $[0], generated by m4_PACKAGE_STRING. + +Copyright (C) 2011 Free Software Foundation, Inc. +This config.lt script is free software; the Free Software Foundation +gives unlimited permision to copy, distribute and modify it." + +while test 0 != $[#] +do + case $[1] in + --version | --v* | -V ) + echo "$lt_cl_version"; exit 0 ;; + --help | --h* | -h ) + echo "$lt_cl_help"; exit 0 ;; + --debug | --d* | -d ) + debug=: ;; + --quiet | --q* | --silent | --s* | -q ) + lt_cl_silent=: ;; + + -*) AC_MSG_ERROR([unrecognized option: $[1] +Try '$[0] --help' for more information.]) ;; + + *) AC_MSG_ERROR([unrecognized argument: $[1] +Try '$[0] --help' for more information.]) ;; + esac + shift +done + +if $lt_cl_silent; then + exec AS_MESSAGE_FD>/dev/null +fi +_LTEOF + +cat >>"$CONFIG_LT" <<_LTEOF +_LT_OUTPUT_LIBTOOL_COMMANDS_INIT +_LTEOF + +cat >>"$CONFIG_LT" <<\_LTEOF +AC_MSG_NOTICE([creating $ofile]) +_LT_OUTPUT_LIBTOOL_COMMANDS +AS_EXIT(0) +_LTEOF +chmod +x "$CONFIG_LT" + +# configure is writing to config.log, but config.lt does its own redirection, +# appending to config.log, which fails on DOS, as config.log is still kept +# open by configure. Here we exec the FD to /dev/null, effectively closing +# config.log, so it can be properly (re)opened and appended to by config.lt. +lt_cl_success=: +test yes = "$silent" && + lt_config_lt_args="$lt_config_lt_args --quiet" +exec AS_MESSAGE_LOG_FD>/dev/null +$SHELL "$CONFIG_LT" $lt_config_lt_args || lt_cl_success=false +exec AS_MESSAGE_LOG_FD>>config.log +$lt_cl_success || AS_EXIT(1) +])# LT_OUTPUT + + +# _LT_CONFIG(TAG) +# --------------- +# If TAG is the built-in tag, create an initial libtool script with a +# default configuration from the untagged config vars. Otherwise add code +# to config.status for appending the configuration named by TAG from the +# matching tagged config vars. +m4_defun([_LT_CONFIG], +[m4_require([_LT_FILEUTILS_DEFAULTS])dnl +_LT_CONFIG_SAVE_COMMANDS([ + m4_define([_LT_TAG], m4_if([$1], [], [C], [$1]))dnl + m4_if(_LT_TAG, [C], [ + # See if we are running on zsh, and set the options that allow our + # commands through without removal of \ escapes. + if test -n "${ZSH_VERSION+set}"; then + setopt NO_GLOB_SUBST + fi + + cfgfile=${ofile}T + trap "$RM \"$cfgfile\"; exit 1" 1 2 15 + $RM "$cfgfile" + + cat <<_LT_EOF >> "$cfgfile" +#! $SHELL +# Generated automatically by $as_me ($PACKAGE) $VERSION +# Libtool was configured on host `(hostname || uname -n) 2>/dev/null | sed 1q`: +# NOTE: Changes made to this file will be lost: look at ltmain.sh. + +# Provide generalized library-building support services. +# Written by Gordon Matzigkeit, 1996 + +_LT_COPYING +_LT_LIBTOOL_TAGS + +# Configured defaults for sys_lib_dlsearch_path munging. +: \${LT_SYS_LIBRARY_PATH="$configure_time_lt_sys_library_path"} + +# ### BEGIN LIBTOOL CONFIG +_LT_LIBTOOL_CONFIG_VARS +_LT_LIBTOOL_TAG_VARS +# ### END LIBTOOL CONFIG + +_LT_EOF + + cat <<'_LT_EOF' >> "$cfgfile" + +# ### BEGIN FUNCTIONS SHARED WITH CONFIGURE + +_LT_PREPARE_MUNGE_PATH_LIST +_LT_PREPARE_CC_BASENAME + +# ### END FUNCTIONS SHARED WITH CONFIGURE + +_LT_EOF + + case $host_os in + aix3*) + cat <<\_LT_EOF >> "$cfgfile" +# AIX sometimes has problems with the GCC collect2 program. For some +# reason, if we set the COLLECT_NAMES environment variable, the problems +# vanish in a puff of smoke. +if test set != "${COLLECT_NAMES+set}"; then + COLLECT_NAMES= + export COLLECT_NAMES +fi +_LT_EOF + ;; + esac + + _LT_PROG_LTMAIN + + # We use sed instead of cat because bash on DJGPP gets confused if + # if finds mixed CR/LF and LF-only lines. Since sed operates in + # text mode, it properly converts lines to CR/LF. This bash problem + # is reportedly fixed, but why not run on old versions too? + sed '$q' "$ltmain" >> "$cfgfile" \ + || (rm -f "$cfgfile"; exit 1) + + mv -f "$cfgfile" "$ofile" || + (rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile") + chmod +x "$ofile" +], +[cat <<_LT_EOF >> "$ofile" + +dnl Unfortunately we have to use $1 here, since _LT_TAG is not expanded +dnl in a comment (ie after a #). +# ### BEGIN LIBTOOL TAG CONFIG: $1 +_LT_LIBTOOL_TAG_VARS(_LT_TAG) +# ### END LIBTOOL TAG CONFIG: $1 +_LT_EOF +])dnl /m4_if +], +[m4_if([$1], [], [ + PACKAGE='$PACKAGE' + VERSION='$VERSION' + RM='$RM' + ofile='$ofile'], []) +])dnl /_LT_CONFIG_SAVE_COMMANDS +])# _LT_CONFIG + + +# LT_SUPPORTED_TAG(TAG) +# --------------------- +# Trace this macro to discover what tags are supported by the libtool +# --tag option, using: +# autoconf --trace 'LT_SUPPORTED_TAG:$1' +AC_DEFUN([LT_SUPPORTED_TAG], []) + + +# C support is built-in for now +m4_define([_LT_LANG_C_enabled], []) +m4_define([_LT_TAGS], []) + + +# LT_LANG(LANG) +# ------------- +# Enable libtool support for the given language if not already enabled. +AC_DEFUN([LT_LANG], +[AC_BEFORE([$0], [LT_OUTPUT])dnl +m4_case([$1], + [C], [_LT_LANG(C)], + [C++], [_LT_LANG(CXX)], + [Go], [_LT_LANG(GO)], + [Java], [_LT_LANG(GCJ)], + [Fortran 77], [_LT_LANG(F77)], + [Fortran], [_LT_LANG(FC)], + [Windows Resource], [_LT_LANG(RC)], + [m4_ifdef([_LT_LANG_]$1[_CONFIG], + [_LT_LANG($1)], + [m4_fatal([$0: unsupported language: "$1"])])])dnl +])# LT_LANG + + +# _LT_LANG(LANGNAME) +# ------------------ +m4_defun([_LT_LANG], +[m4_ifdef([_LT_LANG_]$1[_enabled], [], + [LT_SUPPORTED_TAG([$1])dnl + m4_append([_LT_TAGS], [$1 ])dnl + m4_define([_LT_LANG_]$1[_enabled], [])dnl + _LT_LANG_$1_CONFIG($1)])dnl +])# _LT_LANG + + +m4_ifndef([AC_PROG_GO], [ +############################################################ +# NOTE: This macro has been submitted for inclusion into # +# GNU Autoconf as AC_PROG_GO. When it is available in # +# a released version of Autoconf we should remove this # +# macro and use it instead. # +############################################################ +m4_defun([AC_PROG_GO], +[AC_LANG_PUSH(Go)dnl +AC_ARG_VAR([GOC], [Go compiler command])dnl +AC_ARG_VAR([GOFLAGS], [Go compiler flags])dnl +_AC_ARG_VAR_LDFLAGS()dnl +AC_CHECK_TOOL(GOC, gccgo) +if test -z "$GOC"; then + if test -n "$ac_tool_prefix"; then + AC_CHECK_PROG(GOC, [${ac_tool_prefix}gccgo], [${ac_tool_prefix}gccgo]) + fi +fi +if test -z "$GOC"; then + AC_CHECK_PROG(GOC, gccgo, gccgo, false) +fi +])#m4_defun +])#m4_ifndef + + +# _LT_LANG_DEFAULT_CONFIG +# ----------------------- +m4_defun([_LT_LANG_DEFAULT_CONFIG], +[AC_PROVIDE_IFELSE([AC_PROG_CXX], + [LT_LANG(CXX)], + [m4_define([AC_PROG_CXX], defn([AC_PROG_CXX])[LT_LANG(CXX)])]) + +AC_PROVIDE_IFELSE([AC_PROG_F77], + [LT_LANG(F77)], + [m4_define([AC_PROG_F77], defn([AC_PROG_F77])[LT_LANG(F77)])]) + +AC_PROVIDE_IFELSE([AC_PROG_FC], + [LT_LANG(FC)], + [m4_define([AC_PROG_FC], defn([AC_PROG_FC])[LT_LANG(FC)])]) + +dnl The call to [A][M_PROG_GCJ] is quoted like that to stop aclocal +dnl pulling things in needlessly. +AC_PROVIDE_IFELSE([AC_PROG_GCJ], + [LT_LANG(GCJ)], + [AC_PROVIDE_IFELSE([A][M_PROG_GCJ], + [LT_LANG(GCJ)], + [AC_PROVIDE_IFELSE([LT_PROG_GCJ], + [LT_LANG(GCJ)], + [m4_ifdef([AC_PROG_GCJ], + [m4_define([AC_PROG_GCJ], defn([AC_PROG_GCJ])[LT_LANG(GCJ)])]) + m4_ifdef([A][M_PROG_GCJ], + [m4_define([A][M_PROG_GCJ], defn([A][M_PROG_GCJ])[LT_LANG(GCJ)])]) + m4_ifdef([LT_PROG_GCJ], + [m4_define([LT_PROG_GCJ], defn([LT_PROG_GCJ])[LT_LANG(GCJ)])])])])]) + +AC_PROVIDE_IFELSE([AC_PROG_GO], + [LT_LANG(GO)], + [m4_define([AC_PROG_GO], defn([AC_PROG_GO])[LT_LANG(GO)])]) + +AC_PROVIDE_IFELSE([LT_PROG_RC], + [LT_LANG(RC)], + [m4_define([LT_PROG_RC], defn([LT_PROG_RC])[LT_LANG(RC)])]) +])# _LT_LANG_DEFAULT_CONFIG + +# Obsolete macros: +AU_DEFUN([AC_LIBTOOL_CXX], [LT_LANG(C++)]) +AU_DEFUN([AC_LIBTOOL_F77], [LT_LANG(Fortran 77)]) +AU_DEFUN([AC_LIBTOOL_FC], [LT_LANG(Fortran)]) +AU_DEFUN([AC_LIBTOOL_GCJ], [LT_LANG(Java)]) +AU_DEFUN([AC_LIBTOOL_RC], [LT_LANG(Windows Resource)]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_CXX], []) +dnl AC_DEFUN([AC_LIBTOOL_F77], []) +dnl AC_DEFUN([AC_LIBTOOL_FC], []) +dnl AC_DEFUN([AC_LIBTOOL_GCJ], []) +dnl AC_DEFUN([AC_LIBTOOL_RC], []) + + +# _LT_TAG_COMPILER +# ---------------- +m4_defun([_LT_TAG_COMPILER], +[AC_REQUIRE([AC_PROG_CC])dnl + +_LT_DECL([LTCC], [CC], [1], [A C compiler])dnl +_LT_DECL([LTCFLAGS], [CFLAGS], [1], [LTCC compiler flags])dnl +_LT_TAGDECL([CC], [compiler], [1], [A language specific compiler])dnl +_LT_TAGDECL([with_gcc], [GCC], [0], [Is the compiler the GNU compiler?])dnl + +# If no C compiler was specified, use CC. +LTCC=${LTCC-"$CC"} + +# If no C compiler flags were specified, use CFLAGS. +LTCFLAGS=${LTCFLAGS-"$CFLAGS"} + +# Allow CC to be a program name with arguments. +compiler=$CC +])# _LT_TAG_COMPILER + + +# _LT_COMPILER_BOILERPLATE +# ------------------------ +# Check for compiler boilerplate output or warnings with +# the simple compiler test code. +m4_defun([_LT_COMPILER_BOILERPLATE], +[m4_require([_LT_DECL_SED])dnl +ac_outfile=conftest.$ac_objext +echo "$lt_simple_compile_test_code" >conftest.$ac_ext +eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err +_lt_compiler_boilerplate=`cat conftest.err` +$RM conftest* +])# _LT_COMPILER_BOILERPLATE + + +# _LT_LINKER_BOILERPLATE +# ---------------------- +# Check for linker boilerplate output or warnings with +# the simple link test code. +m4_defun([_LT_LINKER_BOILERPLATE], +[m4_require([_LT_DECL_SED])dnl +ac_outfile=conftest.$ac_objext +echo "$lt_simple_link_test_code" >conftest.$ac_ext +eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err +_lt_linker_boilerplate=`cat conftest.err` +$RM -r conftest* +])# _LT_LINKER_BOILERPLATE + +# _LT_REQUIRED_DARWIN_CHECKS +# ------------------------- +m4_defun_once([_LT_REQUIRED_DARWIN_CHECKS],[ + case $host_os in + rhapsody* | darwin*) + AC_CHECK_TOOL([DSYMUTIL], [dsymutil], [:]) + AC_CHECK_TOOL([NMEDIT], [nmedit], [:]) + AC_CHECK_TOOL([LIPO], [lipo], [:]) + AC_CHECK_TOOL([OTOOL], [otool], [:]) + AC_CHECK_TOOL([OTOOL64], [otool64], [:]) + _LT_DECL([], [DSYMUTIL], [1], + [Tool to manipulate archived DWARF debug symbol files on Mac OS X]) + _LT_DECL([], [NMEDIT], [1], + [Tool to change global to local symbols on Mac OS X]) + _LT_DECL([], [LIPO], [1], + [Tool to manipulate fat objects and archives on Mac OS X]) + _LT_DECL([], [OTOOL], [1], + [ldd/readelf like tool for Mach-O binaries on Mac OS X]) + _LT_DECL([], [OTOOL64], [1], + [ldd/readelf like tool for 64 bit Mach-O binaries on Mac OS X 10.4]) + + AC_CACHE_CHECK([for -single_module linker flag],[lt_cv_apple_cc_single_mod], + [lt_cv_apple_cc_single_mod=no + if test -z "$LT_MULTI_MODULE"; then + # By default we will add the -single_module flag. You can override + # by either setting the environment variable LT_MULTI_MODULE + # non-empty at configure time, or by adding -multi_module to the + # link flags. + rm -rf libconftest.dylib* + echo "int foo(void){return 1;}" > conftest.c + echo "$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \ +-dynamiclib -Wl,-single_module conftest.c" >&AS_MESSAGE_LOG_FD + $LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \ + -dynamiclib -Wl,-single_module conftest.c 2>conftest.err + _lt_result=$? + # If there is a non-empty error log, and "single_module" + # appears in it, assume the flag caused a linker warning + if test -s conftest.err && $GREP single_module conftest.err; then + cat conftest.err >&AS_MESSAGE_LOG_FD + # Otherwise, if the output was created with a 0 exit code from + # the compiler, it worked. + elif test -f libconftest.dylib && test 0 = "$_lt_result"; then + lt_cv_apple_cc_single_mod=yes + else + cat conftest.err >&AS_MESSAGE_LOG_FD + fi + rm -rf libconftest.dylib* + rm -f conftest.* + fi]) + + AC_CACHE_CHECK([for -exported_symbols_list linker flag], + [lt_cv_ld_exported_symbols_list], + [lt_cv_ld_exported_symbols_list=no + save_LDFLAGS=$LDFLAGS + echo "_main" > conftest.sym + LDFLAGS="$LDFLAGS -Wl,-exported_symbols_list,conftest.sym" + AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])], + [lt_cv_ld_exported_symbols_list=yes], + [lt_cv_ld_exported_symbols_list=no]) + LDFLAGS=$save_LDFLAGS + ]) + + AC_CACHE_CHECK([for -force_load linker flag],[lt_cv_ld_force_load], + [lt_cv_ld_force_load=no + cat > conftest.c << _LT_EOF +int forced_loaded() { return 2;} +_LT_EOF + echo "$LTCC $LTCFLAGS -c -o conftest.o conftest.c" >&AS_MESSAGE_LOG_FD + $LTCC $LTCFLAGS -c -o conftest.o conftest.c 2>&AS_MESSAGE_LOG_FD + echo "$AR cru libconftest.a conftest.o" >&AS_MESSAGE_LOG_FD + $AR cru libconftest.a conftest.o 2>&AS_MESSAGE_LOG_FD + echo "$RANLIB libconftest.a" >&AS_MESSAGE_LOG_FD + $RANLIB libconftest.a 2>&AS_MESSAGE_LOG_FD + cat > conftest.c << _LT_EOF +int main() { return 0;} +_LT_EOF + echo "$LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a" >&AS_MESSAGE_LOG_FD + $LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a 2>conftest.err + _lt_result=$? + if test -s conftest.err && $GREP force_load conftest.err; then + cat conftest.err >&AS_MESSAGE_LOG_FD + elif test -f conftest && test 0 = "$_lt_result" && $GREP forced_load conftest >/dev/null 2>&1; then + lt_cv_ld_force_load=yes + else + cat conftest.err >&AS_MESSAGE_LOG_FD + fi + rm -f conftest.err libconftest.a conftest conftest.c + rm -rf conftest.dSYM + ]) + case $host_os in + rhapsody* | darwin1.[[012]]) + _lt_dar_allow_undefined='$wl-undefined ${wl}suppress' ;; + darwin1.*) + _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;; + darwin*) # darwin 5.x on + # if running on 10.5 or later, the deployment target defaults + # to the OS version, if on x86, and 10.4, the deployment + # target defaults to 10.4. Don't you love it? + case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in + 10.0,*86*-darwin8*|10.0,*-darwin[[91]]*) + _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;; + 10.[[012]][[,.]]*) + _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;; + 10.*) + _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;; + esac + ;; + esac + if test yes = "$lt_cv_apple_cc_single_mod"; then + _lt_dar_single_mod='$single_module' + fi + if test yes = "$lt_cv_ld_exported_symbols_list"; then + _lt_dar_export_syms=' $wl-exported_symbols_list,$output_objdir/$libname-symbols.expsym' + else + _lt_dar_export_syms='~$NMEDIT -s $output_objdir/$libname-symbols.expsym $lib' + fi + if test : != "$DSYMUTIL" && test no = "$lt_cv_ld_force_load"; then + _lt_dsymutil='~$DSYMUTIL $lib || :' + else + _lt_dsymutil= + fi + ;; + esac +]) + + +# _LT_DARWIN_LINKER_FEATURES([TAG]) +# --------------------------------- +# Checks for linker and compiler features on darwin +m4_defun([_LT_DARWIN_LINKER_FEATURES], +[ + m4_require([_LT_REQUIRED_DARWIN_CHECKS]) + _LT_TAGVAR(archive_cmds_need_lc, $1)=no + _LT_TAGVAR(hardcode_direct, $1)=no + _LT_TAGVAR(hardcode_automatic, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported + if test yes = "$lt_cv_ld_force_load"; then + _LT_TAGVAR(whole_archive_flag_spec, $1)='`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience $wl-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`' + m4_case([$1], [F77], [_LT_TAGVAR(compiler_needs_object, $1)=yes], + [FC], [_LT_TAGVAR(compiler_needs_object, $1)=yes]) + else + _LT_TAGVAR(whole_archive_flag_spec, $1)='' + fi + _LT_TAGVAR(link_all_deplibs, $1)=yes + _LT_TAGVAR(allow_undefined_flag, $1)=$_lt_dar_allow_undefined + case $cc_basename in + ifort*|nagfor*) _lt_dar_can_shared=yes ;; + *) _lt_dar_can_shared=$GCC ;; + esac + if test yes = "$_lt_dar_can_shared"; then + output_verbose_link_cmd=func_echo_all + _LT_TAGVAR(archive_cmds, $1)="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dsymutil" + _LT_TAGVAR(module_cmds, $1)="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dsymutil" + _LT_TAGVAR(archive_expsym_cmds, $1)="sed 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dar_export_syms$_lt_dsymutil" + _LT_TAGVAR(module_expsym_cmds, $1)="sed -e 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dar_export_syms$_lt_dsymutil" + m4_if([$1], [CXX], +[ if test yes != "$lt_cv_apple_cc_single_mod"; then + _LT_TAGVAR(archive_cmds, $1)="\$CC -r -keep_private_externs -nostdlib -o \$lib-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$lib-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring$_lt_dsymutil" + _LT_TAGVAR(archive_expsym_cmds, $1)="sed 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -r -keep_private_externs -nostdlib -o \$lib-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$lib-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring$_lt_dar_export_syms$_lt_dsymutil" + fi +],[]) + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi +]) + +# _LT_SYS_MODULE_PATH_AIX([TAGNAME]) +# ---------------------------------- +# Links a minimal program and checks the executable +# for the system default hardcoded library path. In most cases, +# this is /usr/lib:/lib, but when the MPI compilers are used +# the location of the communication and MPI libs are included too. +# If we don't find anything, use the default library path according +# to the aix ld manual. +# Store the results from the different compilers for each TAGNAME. +# Allow to override them for all tags through lt_cv_aix_libpath. +m4_defun([_LT_SYS_MODULE_PATH_AIX], +[m4_require([_LT_DECL_SED])dnl +if test set = "${lt_cv_aix_libpath+set}"; then + aix_libpath=$lt_cv_aix_libpath +else + AC_CACHE_VAL([_LT_TAGVAR([lt_cv_aix_libpath_], [$1])], + [AC_LINK_IFELSE([AC_LANG_PROGRAM],[ + lt_aix_libpath_sed='[ + /Import File Strings/,/^$/ { + /^0/ { + s/^0 *\([^ ]*\) *$/\1/ + p + } + }]' + _LT_TAGVAR([lt_cv_aix_libpath_], [$1])=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` + # Check for a 64-bit object if we didn't find anything. + if test -z "$_LT_TAGVAR([lt_cv_aix_libpath_], [$1])"; then + _LT_TAGVAR([lt_cv_aix_libpath_], [$1])=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` + fi],[]) + if test -z "$_LT_TAGVAR([lt_cv_aix_libpath_], [$1])"; then + _LT_TAGVAR([lt_cv_aix_libpath_], [$1])=/usr/lib:/lib + fi + ]) + aix_libpath=$_LT_TAGVAR([lt_cv_aix_libpath_], [$1]) +fi +])# _LT_SYS_MODULE_PATH_AIX + + +# _LT_SHELL_INIT(ARG) +# ------------------- +m4_define([_LT_SHELL_INIT], +[m4_divert_text([M4SH-INIT], [$1 +])])# _LT_SHELL_INIT + + + +# _LT_PROG_ECHO_BACKSLASH +# ----------------------- +# Find how we can fake an echo command that does not interpret backslash. +# In particular, with Autoconf 2.60 or later we add some code to the start +# of the generated configure script that will find a shell with a builtin +# printf (that we can use as an echo command). +m4_defun([_LT_PROG_ECHO_BACKSLASH], +[ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\' +ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO +ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO$ECHO + +AC_MSG_CHECKING([how to print strings]) +# Test print first, because it will be a builtin if present. +if test "X`( print -r -- -n ) 2>/dev/null`" = X-n && \ + test "X`print -r -- $ECHO 2>/dev/null`" = "X$ECHO"; then + ECHO='print -r --' +elif test "X`printf %s $ECHO 2>/dev/null`" = "X$ECHO"; then + ECHO='printf %s\n' +else + # Use this function as a fallback that always works. + func_fallback_echo () + { + eval 'cat <<_LTECHO_EOF +$[]1 +_LTECHO_EOF' + } + ECHO='func_fallback_echo' +fi + +# func_echo_all arg... +# Invoke $ECHO with all args, space-separated. +func_echo_all () +{ + $ECHO "$*" +} + +case $ECHO in + printf*) AC_MSG_RESULT([printf]) ;; + print*) AC_MSG_RESULT([print -r]) ;; + *) AC_MSG_RESULT([cat]) ;; +esac + +m4_ifdef([_AS_DETECT_SUGGESTED], +[_AS_DETECT_SUGGESTED([ + test -n "${ZSH_VERSION+set}${BASH_VERSION+set}" || ( + ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\' + ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO + ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO$ECHO + PATH=/empty FPATH=/empty; export PATH FPATH + test "X`printf %s $ECHO`" = "X$ECHO" \ + || test "X`print -r -- $ECHO`" = "X$ECHO" )])]) + +_LT_DECL([], [SHELL], [1], [Shell to use when invoking shell scripts]) +_LT_DECL([], [ECHO], [1], [An echo program that protects backslashes]) +])# _LT_PROG_ECHO_BACKSLASH + + +# _LT_WITH_SYSROOT +# ---------------- +AC_DEFUN([_LT_WITH_SYSROOT], +[AC_MSG_CHECKING([for sysroot]) +AC_ARG_WITH([sysroot], +[AS_HELP_STRING([--with-sysroot@<:@=DIR@:>@], + [Search for dependent libraries within DIR (or the compiler's sysroot + if not specified).])], +[], [with_sysroot=no]) + +dnl lt_sysroot will always be passed unquoted. We quote it here +dnl in case the user passed a directory name. +lt_sysroot= +case $with_sysroot in #( + yes) + if test yes = "$GCC"; then + lt_sysroot=`$CC --print-sysroot 2>/dev/null` + fi + ;; #( + /*) + lt_sysroot=`echo "$with_sysroot" | sed -e "$sed_quote_subst"` + ;; #( + no|'') + ;; #( + *) + AC_MSG_RESULT([$with_sysroot]) + AC_MSG_ERROR([The sysroot must be an absolute path.]) + ;; +esac + + AC_MSG_RESULT([${lt_sysroot:-no}]) +_LT_DECL([], [lt_sysroot], [0], [The root where to search for ]dnl +[dependent libraries, and where our libraries should be installed.])]) + +# _LT_ENABLE_LOCK +# --------------- +m4_defun([_LT_ENABLE_LOCK], +[AC_ARG_ENABLE([libtool-lock], + [AS_HELP_STRING([--disable-libtool-lock], + [avoid locking (might break parallel builds)])]) +test no = "$enable_libtool_lock" || enable_libtool_lock=yes + +# Some flags need to be propagated to the compiler or linker for good +# libtool support. +case $host in +ia64-*-hpux*) + # Find out what ABI is being produced by ac_compile, and set mode + # options accordingly. + echo 'int i;' > conftest.$ac_ext + if AC_TRY_EVAL(ac_compile); then + case `/usr/bin/file conftest.$ac_objext` in + *ELF-32*) + HPUX_IA64_MODE=32 + ;; + *ELF-64*) + HPUX_IA64_MODE=64 + ;; + esac + fi + rm -rf conftest* + ;; +*-*-irix6*) + # Find out what ABI is being produced by ac_compile, and set linker + # options accordingly. + echo '[#]line '$LINENO' "configure"' > conftest.$ac_ext + if AC_TRY_EVAL(ac_compile); then + if test yes = "$lt_cv_prog_gnu_ld"; then + case `/usr/bin/file conftest.$ac_objext` in + *32-bit*) + LD="${LD-ld} -melf32bsmip" + ;; + *N32*) + LD="${LD-ld} -melf32bmipn32" + ;; + *64-bit*) + LD="${LD-ld} -melf64bmip" + ;; + esac + else + case `/usr/bin/file conftest.$ac_objext` in + *32-bit*) + LD="${LD-ld} -32" + ;; + *N32*) + LD="${LD-ld} -n32" + ;; + *64-bit*) + LD="${LD-ld} -64" + ;; + esac + fi + fi + rm -rf conftest* + ;; + +mips64*-*linux*) + # Find out what ABI is being produced by ac_compile, and set linker + # options accordingly. + echo '[#]line '$LINENO' "configure"' > conftest.$ac_ext + if AC_TRY_EVAL(ac_compile); then + emul=elf + case `/usr/bin/file conftest.$ac_objext` in + *32-bit*) + emul="${emul}32" + ;; + *64-bit*) + emul="${emul}64" + ;; + esac + case `/usr/bin/file conftest.$ac_objext` in + *MSB*) + emul="${emul}btsmip" + ;; + *LSB*) + emul="${emul}ltsmip" + ;; + esac + case `/usr/bin/file conftest.$ac_objext` in + *N32*) + emul="${emul}n32" + ;; + esac + LD="${LD-ld} -m $emul" + fi + rm -rf conftest* + ;; + +x86_64-*kfreebsd*-gnu|x86_64-*linux*|powerpc*-*linux*| \ +s390*-*linux*|s390*-*tpf*|sparc*-*linux*) + # Find out what ABI is being produced by ac_compile, and set linker + # options accordingly. Note that the listed cases only cover the + # situations where additional linker options are needed (such as when + # doing 32-bit compilation for a host where ld defaults to 64-bit, or + # vice versa); the common cases where no linker options are needed do + # not appear in the list. + echo 'int i;' > conftest.$ac_ext + if AC_TRY_EVAL(ac_compile); then + case `/usr/bin/file conftest.o` in + *32-bit*) + case $host in + x86_64-*kfreebsd*-gnu) + LD="${LD-ld} -m elf_i386_fbsd" + ;; + x86_64-*linux*) + case `/usr/bin/file conftest.o` in + *x86-64*) + LD="${LD-ld} -m elf32_x86_64" + ;; + *) + LD="${LD-ld} -m elf_i386" + ;; + esac + ;; + powerpc64le-*linux*) + LD="${LD-ld} -m elf32lppclinux" + ;; + powerpc64-*linux*) + LD="${LD-ld} -m elf32ppclinux" + ;; + s390x-*linux*) + LD="${LD-ld} -m elf_s390" + ;; + sparc64-*linux*) + LD="${LD-ld} -m elf32_sparc" + ;; + esac + ;; + *64-bit*) + case $host in + x86_64-*kfreebsd*-gnu) + LD="${LD-ld} -m elf_x86_64_fbsd" + ;; + x86_64-*linux*) + LD="${LD-ld} -m elf_x86_64" + ;; + powerpcle-*linux*) + LD="${LD-ld} -m elf64lppc" + ;; + powerpc-*linux*) + LD="${LD-ld} -m elf64ppc" + ;; + s390*-*linux*|s390*-*tpf*) + LD="${LD-ld} -m elf64_s390" + ;; + sparc*-*linux*) + LD="${LD-ld} -m elf64_sparc" + ;; + esac + ;; + esac + fi + rm -rf conftest* + ;; + +*-*-sco3.2v5*) + # On SCO OpenServer 5, we need -belf to get full-featured binaries. + SAVE_CFLAGS=$CFLAGS + CFLAGS="$CFLAGS -belf" + AC_CACHE_CHECK([whether the C compiler needs -belf], lt_cv_cc_needs_belf, + [AC_LANG_PUSH(C) + AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],[[]])],[lt_cv_cc_needs_belf=yes],[lt_cv_cc_needs_belf=no]) + AC_LANG_POP]) + if test yes != "$lt_cv_cc_needs_belf"; then + # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf + CFLAGS=$SAVE_CFLAGS + fi + ;; +*-*solaris*) + # Find out what ABI is being produced by ac_compile, and set linker + # options accordingly. + echo 'int i;' > conftest.$ac_ext + if AC_TRY_EVAL(ac_compile); then + case `/usr/bin/file conftest.o` in + *64-bit*) + case $lt_cv_prog_gnu_ld in + yes*) + case $host in + i?86-*-solaris*|x86_64-*-solaris*) + LD="${LD-ld} -m elf_x86_64" + ;; + sparc*-*-solaris*) + LD="${LD-ld} -m elf64_sparc" + ;; + esac + # GNU ld 2.21 introduced _sol2 emulations. Use them if available. + if ${LD-ld} -V | grep _sol2 >/dev/null 2>&1; then + LD=${LD-ld}_sol2 + fi + ;; + *) + if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then + LD="${LD-ld} -64" + fi + ;; + esac + ;; + esac + fi + rm -rf conftest* + ;; +esac + +need_locks=$enable_libtool_lock +])# _LT_ENABLE_LOCK + + +# _LT_PROG_AR +# ----------- +m4_defun([_LT_PROG_AR], +[AC_CHECK_TOOLS(AR, [ar], false) +: ${AR=ar} +: ${AR_FLAGS=cru} +_LT_DECL([], [AR], [1], [The archiver]) +_LT_DECL([], [AR_FLAGS], [1], [Flags to create an archive]) + +AC_CACHE_CHECK([for archiver @FILE support], [lt_cv_ar_at_file], + [lt_cv_ar_at_file=no + AC_COMPILE_IFELSE([AC_LANG_PROGRAM], + [echo conftest.$ac_objext > conftest.lst + lt_ar_try='$AR $AR_FLAGS libconftest.a @conftest.lst >&AS_MESSAGE_LOG_FD' + AC_TRY_EVAL([lt_ar_try]) + if test 0 -eq "$ac_status"; then + # Ensure the archiver fails upon bogus file names. + rm -f conftest.$ac_objext libconftest.a + AC_TRY_EVAL([lt_ar_try]) + if test 0 -ne "$ac_status"; then + lt_cv_ar_at_file=@ + fi + fi + rm -f conftest.* libconftest.a + ]) + ]) + +if test no = "$lt_cv_ar_at_file"; then + archiver_list_spec= +else + archiver_list_spec=$lt_cv_ar_at_file +fi +_LT_DECL([], [archiver_list_spec], [1], + [How to feed a file listing to the archiver]) +])# _LT_PROG_AR + + +# _LT_CMD_OLD_ARCHIVE +# ------------------- +m4_defun([_LT_CMD_OLD_ARCHIVE], +[_LT_PROG_AR + +AC_CHECK_TOOL(STRIP, strip, :) +test -z "$STRIP" && STRIP=: +_LT_DECL([], [STRIP], [1], [A symbol stripping program]) + +AC_CHECK_TOOL(RANLIB, ranlib, :) +test -z "$RANLIB" && RANLIB=: +_LT_DECL([], [RANLIB], [1], + [Commands used to install an old-style archive]) + +# Determine commands to create old-style static archives. +old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs' +old_postinstall_cmds='chmod 644 $oldlib' +old_postuninstall_cmds= + +if test -n "$RANLIB"; then + case $host_os in + bitrig* | openbsd*) + old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$tool_oldlib" + ;; + *) + old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$tool_oldlib" + ;; + esac + old_archive_cmds="$old_archive_cmds~\$RANLIB \$tool_oldlib" +fi + +case $host_os in + darwin*) + lock_old_archive_extraction=yes ;; + *) + lock_old_archive_extraction=no ;; +esac +_LT_DECL([], [old_postinstall_cmds], [2]) +_LT_DECL([], [old_postuninstall_cmds], [2]) +_LT_TAGDECL([], [old_archive_cmds], [2], + [Commands used to build an old-style archive]) +_LT_DECL([], [lock_old_archive_extraction], [0], + [Whether to use a lock for old archive extraction]) +])# _LT_CMD_OLD_ARCHIVE + + +# _LT_COMPILER_OPTION(MESSAGE, VARIABLE-NAME, FLAGS, +# [OUTPUT-FILE], [ACTION-SUCCESS], [ACTION-FAILURE]) +# ---------------------------------------------------------------- +# Check whether the given compiler option works +AC_DEFUN([_LT_COMPILER_OPTION], +[m4_require([_LT_FILEUTILS_DEFAULTS])dnl +m4_require([_LT_DECL_SED])dnl +AC_CACHE_CHECK([$1], [$2], + [$2=no + m4_if([$4], , [ac_outfile=conftest.$ac_objext], [ac_outfile=$4]) + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + lt_compiler_flag="$3" ## exclude from sc_useless_quotes_in_assignment + # Insert the option either (1) after the last *FLAGS variable, or + # (2) before a word containing "conftest.", or (3) at the end. + # Note that $ac_compile itself does not contain backslashes and begins + # with a dollar sign (not a hyphen), so the echo should work correctly. + # The option is referenced via a variable to avoid confusing sed. + lt_compile=`echo "$ac_compile" | $SED \ + -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ + -e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \ + -e 's:$: $lt_compiler_flag:'` + (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&AS_MESSAGE_LOG_FD) + (eval "$lt_compile" 2>conftest.err) + ac_status=$? + cat conftest.err >&AS_MESSAGE_LOG_FD + echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD + if (exit $ac_status) && test -s "$ac_outfile"; then + # The compiler can only warn and ignore the option if not recognized + # So say no if there are warnings other than the usual output. + $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp + $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2 + if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then + $2=yes + fi + fi + $RM conftest* +]) + +if test yes = "[$]$2"; then + m4_if([$5], , :, [$5]) +else + m4_if([$6], , :, [$6]) +fi +])# _LT_COMPILER_OPTION + +# Old name: +AU_ALIAS([AC_LIBTOOL_COMPILER_OPTION], [_LT_COMPILER_OPTION]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_COMPILER_OPTION], []) + + +# _LT_LINKER_OPTION(MESSAGE, VARIABLE-NAME, FLAGS, +# [ACTION-SUCCESS], [ACTION-FAILURE]) +# ---------------------------------------------------- +# Check whether the given linker option works +AC_DEFUN([_LT_LINKER_OPTION], +[m4_require([_LT_FILEUTILS_DEFAULTS])dnl +m4_require([_LT_DECL_SED])dnl +AC_CACHE_CHECK([$1], [$2], + [$2=no + save_LDFLAGS=$LDFLAGS + LDFLAGS="$LDFLAGS $3" + echo "$lt_simple_link_test_code" > conftest.$ac_ext + if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then + # The linker can only warn and ignore the option if not recognized + # So say no if there are warnings + if test -s conftest.err; then + # Append any errors to the config.log. + cat conftest.err 1>&AS_MESSAGE_LOG_FD + $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp + $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2 + if diff conftest.exp conftest.er2 >/dev/null; then + $2=yes + fi + else + $2=yes + fi + fi + $RM -r conftest* + LDFLAGS=$save_LDFLAGS +]) + +if test yes = "[$]$2"; then + m4_if([$4], , :, [$4]) +else + m4_if([$5], , :, [$5]) +fi +])# _LT_LINKER_OPTION + +# Old name: +AU_ALIAS([AC_LIBTOOL_LINKER_OPTION], [_LT_LINKER_OPTION]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_LINKER_OPTION], []) + + +# LT_CMD_MAX_LEN +#--------------- +AC_DEFUN([LT_CMD_MAX_LEN], +[AC_REQUIRE([AC_CANONICAL_HOST])dnl +# find the maximum length of command line arguments +AC_MSG_CHECKING([the maximum length of command line arguments]) +AC_CACHE_VAL([lt_cv_sys_max_cmd_len], [dnl + i=0 + teststring=ABCD + + case $build_os in + msdosdjgpp*) + # On DJGPP, this test can blow up pretty badly due to problems in libc + # (any single argument exceeding 2000 bytes causes a buffer overrun + # during glob expansion). Even if it were fixed, the result of this + # check would be larger than it should be. + lt_cv_sys_max_cmd_len=12288; # 12K is about right + ;; + + gnu*) + # Under GNU Hurd, this test is not required because there is + # no limit to the length of command line arguments. + # Libtool will interpret -1 as no limit whatsoever + lt_cv_sys_max_cmd_len=-1; + ;; + + cygwin* | mingw* | cegcc*) + # On Win9x/ME, this test blows up -- it succeeds, but takes + # about 5 minutes as the teststring grows exponentially. + # Worse, since 9x/ME are not pre-emptively multitasking, + # you end up with a "frozen" computer, even though with patience + # the test eventually succeeds (with a max line length of 256k). + # Instead, let's just punt: use the minimum linelength reported by + # all of the supported platforms: 8192 (on NT/2K/XP). + lt_cv_sys_max_cmd_len=8192; + ;; + + mint*) + # On MiNT this can take a long time and run out of memory. + lt_cv_sys_max_cmd_len=8192; + ;; + + amigaos*) + # On AmigaOS with pdksh, this test takes hours, literally. + # So we just punt and use a minimum line length of 8192. + lt_cv_sys_max_cmd_len=8192; + ;; + + bitrig* | darwin* | dragonfly* | freebsd* | netbsd* | openbsd*) + # This has been around since 386BSD, at least. Likely further. + if test -x /sbin/sysctl; then + lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax` + elif test -x /usr/sbin/sysctl; then + lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax` + else + lt_cv_sys_max_cmd_len=65536 # usable default for all BSDs + fi + # And add a safety zone + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4` + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3` + ;; + + interix*) + # We know the value 262144 and hardcode it with a safety zone (like BSD) + lt_cv_sys_max_cmd_len=196608 + ;; + + os2*) + # The test takes a long time on OS/2. + lt_cv_sys_max_cmd_len=8192 + ;; + + osf*) + # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure + # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not + # nice to cause kernel panics so lets avoid the loop below. + # First set a reasonable default. + lt_cv_sys_max_cmd_len=16384 + # + if test -x /sbin/sysconfig; then + case `/sbin/sysconfig -q proc exec_disable_arg_limit` in + *1*) lt_cv_sys_max_cmd_len=-1 ;; + esac + fi + ;; + sco3.2v5*) + lt_cv_sys_max_cmd_len=102400 + ;; + sysv5* | sco5v6* | sysv4.2uw2*) + kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null` + if test -n "$kargmax"; then + lt_cv_sys_max_cmd_len=`echo $kargmax | sed 's/.*[[ ]]//'` + else + lt_cv_sys_max_cmd_len=32768 + fi + ;; + *) + lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null` + if test -n "$lt_cv_sys_max_cmd_len" && \ + test undefined != "$lt_cv_sys_max_cmd_len"; then + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4` + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3` + else + # Make teststring a little bigger before we do anything with it. + # a 1K string should be a reasonable start. + for i in 1 2 3 4 5 6 7 8; do + teststring=$teststring$teststring + done + SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}} + # If test is not a shell built-in, we'll probably end up computing a + # maximum length that is only half of the actual maximum length, but + # we can't tell. + while { test X`env echo "$teststring$teststring" 2>/dev/null` \ + = "X$teststring$teststring"; } >/dev/null 2>&1 && + test 17 != "$i" # 1/2 MB should be enough + do + i=`expr $i + 1` + teststring=$teststring$teststring + done + # Only check the string length outside the loop. + lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1` + teststring= + # Add a significant safety factor because C++ compilers can tack on + # massive amounts of additional arguments before passing them to the + # linker. It appears as though 1/2 is a usable value. + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2` + fi + ;; + esac +]) +if test -n "$lt_cv_sys_max_cmd_len"; then + AC_MSG_RESULT($lt_cv_sys_max_cmd_len) +else + AC_MSG_RESULT(none) +fi +max_cmd_len=$lt_cv_sys_max_cmd_len +_LT_DECL([], [max_cmd_len], [0], + [What is the maximum length of a command?]) +])# LT_CMD_MAX_LEN + +# Old name: +AU_ALIAS([AC_LIBTOOL_SYS_MAX_CMD_LEN], [LT_CMD_MAX_LEN]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_SYS_MAX_CMD_LEN], []) + + +# _LT_HEADER_DLFCN +# ---------------- +m4_defun([_LT_HEADER_DLFCN], +[AC_CHECK_HEADERS([dlfcn.h], [], [], [AC_INCLUDES_DEFAULT])dnl +])# _LT_HEADER_DLFCN + + +# _LT_TRY_DLOPEN_SELF (ACTION-IF-TRUE, ACTION-IF-TRUE-W-USCORE, +# ACTION-IF-FALSE, ACTION-IF-CROSS-COMPILING) +# ---------------------------------------------------------------- +m4_defun([_LT_TRY_DLOPEN_SELF], +[m4_require([_LT_HEADER_DLFCN])dnl +if test yes = "$cross_compiling"; then : + [$4] +else + lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 + lt_status=$lt_dlunknown + cat > conftest.$ac_ext <<_LT_EOF +[#line $LINENO "configure" +#include "confdefs.h" + +#if HAVE_DLFCN_H +#include +#endif + +#include + +#ifdef RTLD_GLOBAL +# define LT_DLGLOBAL RTLD_GLOBAL +#else +# ifdef DL_GLOBAL +# define LT_DLGLOBAL DL_GLOBAL +# else +# define LT_DLGLOBAL 0 +# endif +#endif + +/* We may have to define LT_DLLAZY_OR_NOW in the command line if we + find out it does not work in some platform. */ +#ifndef LT_DLLAZY_OR_NOW +# ifdef RTLD_LAZY +# define LT_DLLAZY_OR_NOW RTLD_LAZY +# else +# ifdef DL_LAZY +# define LT_DLLAZY_OR_NOW DL_LAZY +# else +# ifdef RTLD_NOW +# define LT_DLLAZY_OR_NOW RTLD_NOW +# else +# ifdef DL_NOW +# define LT_DLLAZY_OR_NOW DL_NOW +# else +# define LT_DLLAZY_OR_NOW 0 +# endif +# endif +# endif +# endif +#endif + +/* When -fvisibility=hidden is used, assume the code has been annotated + correspondingly for the symbols needed. */ +#if defined __GNUC__ && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3)) +int fnord () __attribute__((visibility("default"))); +#endif + +int fnord () { return 42; } +int main () +{ + void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW); + int status = $lt_dlunknown; + + if (self) + { + if (dlsym (self,"fnord")) status = $lt_dlno_uscore; + else + { + if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore; + else puts (dlerror ()); + } + /* dlclose (self); */ + } + else + puts (dlerror ()); + + return status; +}] +_LT_EOF + if AC_TRY_EVAL(ac_link) && test -s "conftest$ac_exeext" 2>/dev/null; then + (./conftest; exit; ) >&AS_MESSAGE_LOG_FD 2>/dev/null + lt_status=$? + case x$lt_status in + x$lt_dlno_uscore) $1 ;; + x$lt_dlneed_uscore) $2 ;; + x$lt_dlunknown|x*) $3 ;; + esac + else : + # compilation failed + $3 + fi +fi +rm -fr conftest* +])# _LT_TRY_DLOPEN_SELF + + +# LT_SYS_DLOPEN_SELF +# ------------------ +AC_DEFUN([LT_SYS_DLOPEN_SELF], +[m4_require([_LT_HEADER_DLFCN])dnl +if test yes != "$enable_dlopen"; then + enable_dlopen=unknown + enable_dlopen_self=unknown + enable_dlopen_self_static=unknown +else + lt_cv_dlopen=no + lt_cv_dlopen_libs= + + case $host_os in + beos*) + lt_cv_dlopen=load_add_on + lt_cv_dlopen_libs= + lt_cv_dlopen_self=yes + ;; + + mingw* | pw32* | cegcc*) + lt_cv_dlopen=LoadLibrary + lt_cv_dlopen_libs= + ;; + + cygwin*) + lt_cv_dlopen=dlopen + lt_cv_dlopen_libs= + ;; + + darwin*) + # if libdl is installed we need to link against it + AC_CHECK_LIB([dl], [dlopen], + [lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl],[ + lt_cv_dlopen=dyld + lt_cv_dlopen_libs= + lt_cv_dlopen_self=yes + ]) + ;; + + tpf*) + # Don't try to run any link tests for TPF. We know it's impossible + # because TPF is a cross-compiler, and we know how we open DSOs. + lt_cv_dlopen=dlopen + lt_cv_dlopen_libs= + lt_cv_dlopen_self=no + ;; + + *) + AC_CHECK_FUNC([shl_load], + [lt_cv_dlopen=shl_load], + [AC_CHECK_LIB([dld], [shl_load], + [lt_cv_dlopen=shl_load lt_cv_dlopen_libs=-ldld], + [AC_CHECK_FUNC([dlopen], + [lt_cv_dlopen=dlopen], + [AC_CHECK_LIB([dl], [dlopen], + [lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl], + [AC_CHECK_LIB([svld], [dlopen], + [lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-lsvld], + [AC_CHECK_LIB([dld], [dld_link], + [lt_cv_dlopen=dld_link lt_cv_dlopen_libs=-ldld]) + ]) + ]) + ]) + ]) + ]) + ;; + esac + + if test no = "$lt_cv_dlopen"; then + enable_dlopen=no + else + enable_dlopen=yes + fi + + case $lt_cv_dlopen in + dlopen) + save_CPPFLAGS=$CPPFLAGS + test yes = "$ac_cv_header_dlfcn_h" && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H" + + save_LDFLAGS=$LDFLAGS + wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\" + + save_LIBS=$LIBS + LIBS="$lt_cv_dlopen_libs $LIBS" + + AC_CACHE_CHECK([whether a program can dlopen itself], + lt_cv_dlopen_self, [dnl + _LT_TRY_DLOPEN_SELF( + lt_cv_dlopen_self=yes, lt_cv_dlopen_self=yes, + lt_cv_dlopen_self=no, lt_cv_dlopen_self=cross) + ]) + + if test yes = "$lt_cv_dlopen_self"; then + wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\" + AC_CACHE_CHECK([whether a statically linked program can dlopen itself], + lt_cv_dlopen_self_static, [dnl + _LT_TRY_DLOPEN_SELF( + lt_cv_dlopen_self_static=yes, lt_cv_dlopen_self_static=yes, + lt_cv_dlopen_self_static=no, lt_cv_dlopen_self_static=cross) + ]) + fi + + CPPFLAGS=$save_CPPFLAGS + LDFLAGS=$save_LDFLAGS + LIBS=$save_LIBS + ;; + esac + + case $lt_cv_dlopen_self in + yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;; + *) enable_dlopen_self=unknown ;; + esac + + case $lt_cv_dlopen_self_static in + yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;; + *) enable_dlopen_self_static=unknown ;; + esac +fi +_LT_DECL([dlopen_support], [enable_dlopen], [0], + [Whether dlopen is supported]) +_LT_DECL([dlopen_self], [enable_dlopen_self], [0], + [Whether dlopen of programs is supported]) +_LT_DECL([dlopen_self_static], [enable_dlopen_self_static], [0], + [Whether dlopen of statically linked programs is supported]) +])# LT_SYS_DLOPEN_SELF + +# Old name: +AU_ALIAS([AC_LIBTOOL_DLOPEN_SELF], [LT_SYS_DLOPEN_SELF]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_DLOPEN_SELF], []) + + +# _LT_COMPILER_C_O([TAGNAME]) +# --------------------------- +# Check to see if options -c and -o are simultaneously supported by compiler. +# This macro does not hard code the compiler like AC_PROG_CC_C_O. +m4_defun([_LT_COMPILER_C_O], +[m4_require([_LT_DECL_SED])dnl +m4_require([_LT_FILEUTILS_DEFAULTS])dnl +m4_require([_LT_TAG_COMPILER])dnl +AC_CACHE_CHECK([if $compiler supports -c -o file.$ac_objext], + [_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)], + [_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=no + $RM -r conftest 2>/dev/null + mkdir conftest + cd conftest + mkdir out + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + + lt_compiler_flag="-o out/conftest2.$ac_objext" + # Insert the option either (1) after the last *FLAGS variable, or + # (2) before a word containing "conftest.", or (3) at the end. + # Note that $ac_compile itself does not contain backslashes and begins + # with a dollar sign (not a hyphen), so the echo should work correctly. + lt_compile=`echo "$ac_compile" | $SED \ + -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ + -e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \ + -e 's:$: $lt_compiler_flag:'` + (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&AS_MESSAGE_LOG_FD) + (eval "$lt_compile" 2>out/conftest.err) + ac_status=$? + cat out/conftest.err >&AS_MESSAGE_LOG_FD + echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD + if (exit $ac_status) && test -s out/conftest2.$ac_objext + then + # The compiler can only warn and ignore the option if not recognized + # So say no if there are warnings + $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp + $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2 + if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then + _LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=yes + fi + fi + chmod u+w . 2>&AS_MESSAGE_LOG_FD + $RM conftest* + # SGI C++ compiler will create directory out/ii_files/ for + # template instantiation + test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files + $RM out/* && rmdir out + cd .. + $RM -r conftest + $RM conftest* +]) +_LT_TAGDECL([compiler_c_o], [lt_cv_prog_compiler_c_o], [1], + [Does compiler simultaneously support -c and -o options?]) +])# _LT_COMPILER_C_O + + +# _LT_COMPILER_FILE_LOCKS([TAGNAME]) +# ---------------------------------- +# Check to see if we can do hard links to lock some files if needed +m4_defun([_LT_COMPILER_FILE_LOCKS], +[m4_require([_LT_ENABLE_LOCK])dnl +m4_require([_LT_FILEUTILS_DEFAULTS])dnl +_LT_COMPILER_C_O([$1]) + +hard_links=nottested +if test no = "$_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)" && test no != "$need_locks"; then + # do not overwrite the value of need_locks provided by the user + AC_MSG_CHECKING([if we can lock with hard links]) + hard_links=yes + $RM conftest* + ln conftest.a conftest.b 2>/dev/null && hard_links=no + touch conftest.a + ln conftest.a conftest.b 2>&5 || hard_links=no + ln conftest.a conftest.b 2>/dev/null && hard_links=no + AC_MSG_RESULT([$hard_links]) + if test no = "$hard_links"; then + AC_MSG_WARN(['$CC' does not support '-c -o', so 'make -j' may be unsafe]) + need_locks=warn + fi +else + need_locks=no +fi +_LT_DECL([], [need_locks], [1], [Must we lock files when doing compilation?]) +])# _LT_COMPILER_FILE_LOCKS + + +# _LT_CHECK_OBJDIR +# ---------------- +m4_defun([_LT_CHECK_OBJDIR], +[AC_CACHE_CHECK([for objdir], [lt_cv_objdir], +[rm -f .libs 2>/dev/null +mkdir .libs 2>/dev/null +if test -d .libs; then + lt_cv_objdir=.libs +else + # MS-DOS does not allow filenames that begin with a dot. + lt_cv_objdir=_libs +fi +rmdir .libs 2>/dev/null]) +objdir=$lt_cv_objdir +_LT_DECL([], [objdir], [0], + [The name of the directory that contains temporary libtool files])dnl +m4_pattern_allow([LT_OBJDIR])dnl +AC_DEFINE_UNQUOTED([LT_OBJDIR], "$lt_cv_objdir/", + [Define to the sub-directory where libtool stores uninstalled libraries.]) +])# _LT_CHECK_OBJDIR + + +# _LT_LINKER_HARDCODE_LIBPATH([TAGNAME]) +# -------------------------------------- +# Check hardcoding attributes. +m4_defun([_LT_LINKER_HARDCODE_LIBPATH], +[AC_MSG_CHECKING([how to hardcode library paths into programs]) +_LT_TAGVAR(hardcode_action, $1)= +if test -n "$_LT_TAGVAR(hardcode_libdir_flag_spec, $1)" || + test -n "$_LT_TAGVAR(runpath_var, $1)" || + test yes = "$_LT_TAGVAR(hardcode_automatic, $1)"; then + + # We can hardcode non-existent directories. + if test no != "$_LT_TAGVAR(hardcode_direct, $1)" && + # If the only mechanism to avoid hardcoding is shlibpath_var, we + # have to relink, otherwise we might link with an installed library + # when we should be linking with a yet-to-be-installed one + ## test no != "$_LT_TAGVAR(hardcode_shlibpath_var, $1)" && + test no != "$_LT_TAGVAR(hardcode_minus_L, $1)"; then + # Linking always hardcodes the temporary library directory. + _LT_TAGVAR(hardcode_action, $1)=relink + else + # We can link without hardcoding, and we can hardcode nonexisting dirs. + _LT_TAGVAR(hardcode_action, $1)=immediate + fi +else + # We cannot hardcode anything, or else we can only hardcode existing + # directories. + _LT_TAGVAR(hardcode_action, $1)=unsupported +fi +AC_MSG_RESULT([$_LT_TAGVAR(hardcode_action, $1)]) + +if test relink = "$_LT_TAGVAR(hardcode_action, $1)" || + test yes = "$_LT_TAGVAR(inherit_rpath, $1)"; then + # Fast installation is not supported + enable_fast_install=no +elif test yes = "$shlibpath_overrides_runpath" || + test no = "$enable_shared"; then + # Fast installation is not necessary + enable_fast_install=needless +fi +_LT_TAGDECL([], [hardcode_action], [0], + [How to hardcode a shared library path into an executable]) +])# _LT_LINKER_HARDCODE_LIBPATH + + +# _LT_CMD_STRIPLIB +# ---------------- +m4_defun([_LT_CMD_STRIPLIB], +[m4_require([_LT_DECL_EGREP]) +striplib= +old_striplib= +AC_MSG_CHECKING([whether stripping libraries is possible]) +if test -n "$STRIP" && $STRIP -V 2>&1 | $GREP "GNU strip" >/dev/null; then + test -z "$old_striplib" && old_striplib="$STRIP --strip-debug" + test -z "$striplib" && striplib="$STRIP --strip-unneeded" + AC_MSG_RESULT([yes]) +else +# FIXME - insert some real tests, host_os isn't really good enough + case $host_os in + darwin*) + if test -n "$STRIP"; then + striplib="$STRIP -x" + old_striplib="$STRIP -S" + AC_MSG_RESULT([yes]) + else + AC_MSG_RESULT([no]) + fi + ;; + *) + AC_MSG_RESULT([no]) + ;; + esac +fi +_LT_DECL([], [old_striplib], [1], [Commands to strip libraries]) +_LT_DECL([], [striplib], [1]) +])# _LT_CMD_STRIPLIB + + +# _LT_PREPARE_MUNGE_PATH_LIST +# --------------------------- +# Make sure func_munge_path_list() is defined correctly. +m4_defun([_LT_PREPARE_MUNGE_PATH_LIST], +[[# func_munge_path_list VARIABLE PATH +# ----------------------------------- +# VARIABLE is name of variable containing _space_ separated list of +# directories to be munged by the contents of PATH, which is string +# having a format: +# "DIR[:DIR]:" +# string "DIR[ DIR]" will be prepended to VARIABLE +# ":DIR[:DIR]" +# string "DIR[ DIR]" will be appended to VARIABLE +# "DIRP[:DIRP]::[DIRA:]DIRA" +# string "DIRP[ DIRP]" will be prepended to VARIABLE and string +# "DIRA[ DIRA]" will be appended to VARIABLE +# "DIR[:DIR]" +# VARIABLE will be replaced by "DIR[ DIR]" +func_munge_path_list () +{ + case x@S|@2 in + x) + ;; + *:) + eval @S|@1=\"`$ECHO @S|@2 | $SED 's/:/ /g'` \@S|@@S|@1\" + ;; + x:*) + eval @S|@1=\"\@S|@@S|@1 `$ECHO @S|@2 | $SED 's/:/ /g'`\" + ;; + *::*) + eval @S|@1=\"\@S|@@S|@1\ `$ECHO @S|@2 | $SED -e 's/.*:://' -e 's/:/ /g'`\" + eval @S|@1=\"`$ECHO @S|@2 | $SED -e 's/::.*//' -e 's/:/ /g'`\ \@S|@@S|@1\" + ;; + *) + eval @S|@1=\"`$ECHO @S|@2 | $SED 's/:/ /g'`\" + ;; + esac +} +]])# _LT_PREPARE_PATH_LIST + + +# _LT_SYS_DYNAMIC_LINKER([TAG]) +# ----------------------------- +# PORTME Fill in your ld.so characteristics +m4_defun([_LT_SYS_DYNAMIC_LINKER], +[AC_REQUIRE([AC_CANONICAL_HOST])dnl +m4_require([_LT_DECL_EGREP])dnl +m4_require([_LT_FILEUTILS_DEFAULTS])dnl +m4_require([_LT_DECL_OBJDUMP])dnl +m4_require([_LT_DECL_SED])dnl +m4_require([_LT_CHECK_SHELL_FEATURES])dnl +m4_require([_LT_PREPARE_MUNGE_PATH_LIST])dnl +AC_MSG_CHECKING([dynamic linker characteristics]) +m4_if([$1], + [], [ +if test yes = "$GCC"; then + case $host_os in + darwin*) lt_awk_arg='/^libraries:/,/LR/' ;; + *) lt_awk_arg='/^libraries:/' ;; + esac + case $host_os in + mingw* | cegcc*) lt_sed_strip_eq='s|=\([[A-Za-z]]:\)|\1|g' ;; + *) lt_sed_strip_eq='s|=/|/|g' ;; + esac + lt_search_path_spec=`$CC -print-search-dirs | awk $lt_awk_arg | $SED -e "s/^libraries://" -e $lt_sed_strip_eq` + case $lt_search_path_spec in + *\;*) + # if the path contains ";" then we assume it to be the separator + # otherwise default to the standard path separator (i.e. ":") - it is + # assumed that no part of a normal pathname contains ";" but that should + # okay in the real world where ";" in dirpaths is itself problematic. + lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED 's/;/ /g'` + ;; + *) + lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED "s/$PATH_SEPARATOR/ /g"` + ;; + esac + # Ok, now we have the path, separated by spaces, we can step through it + # and add multilib dir if necessary... + lt_tmp_lt_search_path_spec= + lt_multi_os_dir=/`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null` + # ...but if some path component already ends with the multilib dir we assume + # that all is fine and trust -print-search-dirs as is (GCC 4.2? or newer). + case "$lt_multi_os_dir; $lt_search_path_spec " in + "/; "* | "/.; "* | "/./; "* | *"$lt_multi_os_dir "* | *"$lt_multi_os_dir/ "*) + lt_multi_os_dir= + ;; + esac + for lt_sys_path in $lt_search_path_spec; do + if test -d "$lt_sys_path$lt_multi_os_dir"; then + lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path$lt_multi_os_dir" + elif test -n "$lt_multi_os_dir"; then + test -d "$lt_sys_path" && \ + lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path" + fi + done + lt_search_path_spec=`$ECHO "$lt_tmp_lt_search_path_spec" | awk ' +BEGIN {RS = " "; FS = "/|\n";} { + lt_foo = ""; + lt_count = 0; + for (lt_i = NF; lt_i > 0; lt_i--) { + if ($lt_i != "" && $lt_i != ".") { + if ($lt_i == "..") { + lt_count++; + } else { + if (lt_count == 0) { + lt_foo = "/" $lt_i lt_foo; + } else { + lt_count--; + } + } + } + } + if (lt_foo != "") { lt_freq[[lt_foo]]++; } + if (lt_freq[[lt_foo]] == 1) { print lt_foo; } +}'` + # AWK program above erroneously prepends '/' to C:/dos/paths + # for these hosts. + case $host_os in + mingw* | cegcc*) lt_search_path_spec=`$ECHO "$lt_search_path_spec" |\ + $SED 's|/\([[A-Za-z]]:\)|\1|g'` ;; + esac + sys_lib_search_path_spec=`$ECHO "$lt_search_path_spec" | $lt_NL2SP` +else + sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib" +fi]) +library_names_spec= +libname_spec='lib$name' +soname_spec= +shrext_cmds=.so +postinstall_cmds= +postuninstall_cmds= +finish_cmds= +finish_eval= +shlibpath_var= +shlibpath_overrides_runpath=unknown +version_type=none +dynamic_linker="$host_os ld.so" +sys_lib_dlsearch_path_spec="/lib /usr/lib" +need_lib_prefix=unknown +hardcode_into_libs=no + +# when you set need_version to no, make sure it does not cause -set_version +# flags to be left without arguments +need_version=unknown + +AC_ARG_VAR([LT_SYS_LIBRARY_PATH], +[User-defined run-time library search path.]) + +case $host_os in +aix3*) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='$libname$release$shared_ext$versuffix $libname.a' + shlibpath_var=LIBPATH + + # AIX 3 has no versioning support, so we append a major version to the name. + soname_spec='$libname$release$shared_ext$major' + ;; + +aix[[4-9]]*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + hardcode_into_libs=yes + if test ia64 = "$host_cpu"; then + # AIX 5 supports IA64 + library_names_spec='$libname$release$shared_ext$major $libname$release$shared_ext$versuffix $libname$shared_ext' + shlibpath_var=LD_LIBRARY_PATH + else + # With GCC up to 2.95.x, collect2 would create an import file + # for dependence libraries. The import file would start with + # the line '#! .'. This would cause the generated library to + # depend on '.', always an invalid library. This was fixed in + # development snapshots of GCC prior to 3.0. + case $host_os in + aix4 | aix4.[[01]] | aix4.[[01]].*) + if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)' + echo ' yes ' + echo '#endif'; } | $CC -E - | $GREP yes > /dev/null; then + : + else + can_build_shared=no + fi + ;; + esac + # Using Import Files as archive members, it is possible to support + # filename-based versioning of shared library archives on AIX. While + # this would work for both with and without runtime linking, it will + # prevent static linking of such archives. So we do filename-based + # shared library versioning with .so extension only, which is used + # when both runtime linking and shared linking is enabled. + # Unfortunately, runtime linking may impact performance, so we do + # not want this to be the default eventually. Also, we use the + # versioned .so libs for executables only if there is the -brtl + # linker flag in LDFLAGS as well, or --with-aix-soname=svr4 only. + # To allow for filename-based versioning support, we need to create + # libNAME.so.V as an archive file, containing: + # *) an Import File, referring to the versioned filename of the + # archive as well as the shared archive member, telling the + # bitwidth (32 or 64) of that shared object, and providing the + # list of exported symbols of that shared object, eventually + # decorated with the 'weak' keyword + # *) the shared object with the F_LOADONLY flag set, to really avoid + # it being seen by the linker. + # At run time we better use the real file rather than another symlink, + # but for link time we create the symlink libNAME.so -> libNAME.so.V + + case $with_aix_soname,$aix_use_runtimelinking in + # AIX (on Power*) has no versioning support, so currently we cannot hardcode correct + # soname into executable. Probably we can add versioning support to + # collect2, so additional links can be useful in future. + aix,yes) # traditional libtool + dynamic_linker='AIX unversionable lib.so' + # If using run time linking (on AIX 4.2 or later) use lib.so + # instead of lib.a to let people know that these are not + # typical AIX shared libraries. + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + ;; + aix,no) # traditional AIX only + dynamic_linker='AIX lib.a[(]lib.so.V[)]' + # We preserve .a as extension for shared libraries through AIX4.2 + # and later when we are not doing run time linking. + library_names_spec='$libname$release.a $libname.a' + soname_spec='$libname$release$shared_ext$major' + ;; + svr4,*) # full svr4 only + dynamic_linker="AIX lib.so.V[(]$shared_archive_member_spec.o[)]" + library_names_spec='$libname$release$shared_ext$major $libname$shared_ext' + # We do not specify a path in Import Files, so LIBPATH fires. + shlibpath_overrides_runpath=yes + ;; + *,yes) # both, prefer svr4 + dynamic_linker="AIX lib.so.V[(]$shared_archive_member_spec.o[)], lib.a[(]lib.so.V[)]" + library_names_spec='$libname$release$shared_ext$major $libname$shared_ext' + # unpreferred sharedlib libNAME.a needs extra handling + postinstall_cmds='test -n "$linkname" || linkname="$realname"~func_stripname "" ".so" "$linkname"~$install_shared_prog "$dir/$func_stripname_result.$libext" "$destdir/$func_stripname_result.$libext"~test -z "$tstripme" || test -z "$striplib" || $striplib "$destdir/$func_stripname_result.$libext"' + postuninstall_cmds='for n in $library_names $old_library; do :; done~func_stripname "" ".so" "$n"~test "$func_stripname_result" = "$n" || func_append rmfiles " $odir/$func_stripname_result.$libext"' + # We do not specify a path in Import Files, so LIBPATH fires. + shlibpath_overrides_runpath=yes + ;; + *,no) # both, prefer aix + dynamic_linker="AIX lib.a[(]lib.so.V[)], lib.so.V[(]$shared_archive_member_spec.o[)]" + library_names_spec='$libname$release.a $libname.a' + soname_spec='$libname$release$shared_ext$major' + # unpreferred sharedlib libNAME.so.V and symlink libNAME.so need extra handling + postinstall_cmds='test -z "$dlname" || $install_shared_prog $dir/$dlname $destdir/$dlname~test -z "$tstripme" || test -z "$striplib" || $striplib $destdir/$dlname~test -n "$linkname" || linkname=$realname~func_stripname "" ".a" "$linkname"~(cd "$destdir" && $LN_S -f $dlname $func_stripname_result.so)' + postuninstall_cmds='test -z "$dlname" || func_append rmfiles " $odir/$dlname"~for n in $old_library $library_names; do :; done~func_stripname "" ".a" "$n"~func_append rmfiles " $odir/$func_stripname_result.so"' + ;; + esac + shlibpath_var=LIBPATH + fi + ;; + +amigaos*) + case $host_cpu in + powerpc) + # Since July 2007 AmigaOS4 officially supports .so libraries. + # When compiling the executable, add -use-dynld -Lsobjs: to the compileline. + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + ;; + m68k) + library_names_spec='$libname.ixlibrary $libname.a' + # Create ${libname}_ixlibrary.a entries in /sys/libs. + finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([[^/]]*\)\.ixlibrary$%\1%'\''`; $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done' + ;; + esac + ;; + +beos*) + library_names_spec='$libname$shared_ext' + dynamic_linker="$host_os ld.so" + shlibpath_var=LIBRARY_PATH + ;; + +bsdi[[45]]*) + version_type=linux # correct to gnu/linux during the next big refactor + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir' + shlibpath_var=LD_LIBRARY_PATH + sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib" + sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib" + # the default ld.so.conf also contains /usr/contrib/lib and + # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow + # libtool to hard-code these into programs + ;; + +cygwin* | mingw* | pw32* | cegcc*) + version_type=windows + shrext_cmds=.dll + need_version=no + need_lib_prefix=no + + case $GCC,$cc_basename in + yes,*) + # gcc + library_names_spec='$libname.dll.a' + # DLL is installed to $(libdir)/../bin by postinstall_cmds + postinstall_cmds='base_file=`basename \$file`~ + dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~ + dldir=$destdir/`dirname \$dlpath`~ + test -d \$dldir || mkdir -p \$dldir~ + $install_prog $dir/$dlname \$dldir/$dlname~ + chmod a+x \$dldir/$dlname~ + if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then + eval '\''$striplib \$dldir/$dlname'\'' || exit \$?; + fi' + postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~ + dlpath=$dir/\$dldll~ + $RM \$dlpath' + shlibpath_overrides_runpath=yes + + case $host_os in + cygwin*) + # Cygwin DLLs use 'cyg' prefix rather than 'lib' + soname_spec='`echo $libname | sed -e 's/^lib/cyg/'``echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext' +m4_if([$1], [],[ + sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api"]) + ;; + mingw* | cegcc*) + # MinGW DLLs use traditional 'lib' prefix + soname_spec='$libname`echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext' + ;; + pw32*) + # pw32 DLLs use 'pw' prefix rather than 'lib' + library_names_spec='`echo $libname | sed -e 's/^lib/pw/'``echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext' + ;; + esac + dynamic_linker='Win32 ld.exe' + ;; + + *,cl*) + # Native MSVC + libname_spec='$name' + soname_spec='$libname`echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext' + library_names_spec='$libname.dll.lib' + + case $build_os in + mingw*) + sys_lib_search_path_spec= + lt_save_ifs=$IFS + IFS=';' + for lt_path in $LIB + do + IFS=$lt_save_ifs + # Let DOS variable expansion print the short 8.3 style file name. + lt_path=`cd "$lt_path" 2>/dev/null && cmd //C "for %i in (".") do @echo %~si"` + sys_lib_search_path_spec="$sys_lib_search_path_spec $lt_path" + done + IFS=$lt_save_ifs + # Convert to MSYS style. + sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | sed -e 's|\\\\|/|g' -e 's| \\([[a-zA-Z]]\\):| /\\1|g' -e 's|^ ||'` + ;; + cygwin*) + # Convert to unix form, then to dos form, then back to unix form + # but this time dos style (no spaces!) so that the unix form looks + # like /cygdrive/c/PROGRA~1:/cygdr... + sys_lib_search_path_spec=`cygpath --path --unix "$LIB"` + sys_lib_search_path_spec=`cygpath --path --dos "$sys_lib_search_path_spec" 2>/dev/null` + sys_lib_search_path_spec=`cygpath --path --unix "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"` + ;; + *) + sys_lib_search_path_spec=$LIB + if $ECHO "$sys_lib_search_path_spec" | [$GREP ';[c-zC-Z]:/' >/dev/null]; then + # It is most probably a Windows format PATH. + sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'` + else + sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"` + fi + # FIXME: find the short name or the path components, as spaces are + # common. (e.g. "Program Files" -> "PROGRA~1") + ;; + esac + + # DLL is installed to $(libdir)/../bin by postinstall_cmds + postinstall_cmds='base_file=`basename \$file`~ + dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~ + dldir=$destdir/`dirname \$dlpath`~ + test -d \$dldir || mkdir -p \$dldir~ + $install_prog $dir/$dlname \$dldir/$dlname' + postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~ + dlpath=$dir/\$dldll~ + $RM \$dlpath' + shlibpath_overrides_runpath=yes + dynamic_linker='Win32 link.exe' + ;; + + *) + # Assume MSVC wrapper + library_names_spec='$libname`echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext $libname.lib' + dynamic_linker='Win32 ld.exe' + ;; + esac + # FIXME: first we should search . and the directory the executable is in + shlibpath_var=PATH + ;; + +darwin* | rhapsody*) + dynamic_linker="$host_os dyld" + version_type=darwin + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$major$shared_ext $libname$shared_ext' + soname_spec='$libname$release$major$shared_ext' + shlibpath_overrides_runpath=yes + shlibpath_var=DYLD_LIBRARY_PATH + shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`' +m4_if([$1], [],[ + sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/local/lib"]) + sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib' + ;; + +dgux*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + ;; + +freebsd* | dragonfly*) + # DragonFly does not have aout. When/if they implement a new + # versioning mechanism, adjust this. + if test -x /usr/bin/objformat; then + objformat=`/usr/bin/objformat` + else + case $host_os in + freebsd[[23]].*) objformat=aout ;; + *) objformat=elf ;; + esac + fi + version_type=freebsd-$objformat + case $version_type in + freebsd-elf*) + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + need_version=no + need_lib_prefix=no + ;; + freebsd-*) + library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix' + need_version=yes + ;; + esac + shlibpath_var=LD_LIBRARY_PATH + case $host_os in + freebsd2.*) + shlibpath_overrides_runpath=yes + ;; + freebsd3.[[01]]* | freebsdelf3.[[01]]*) + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + ;; + freebsd3.[[2-9]]* | freebsdelf3.[[2-9]]* | \ + freebsd4.[[0-5]] | freebsdelf4.[[0-5]] | freebsd4.1.1 | freebsdelf4.1.1) + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + *) # from 4.6 on, and DragonFly + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + ;; + esac + ;; + +haiku*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + dynamic_linker="$host_os runtime_loader" + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LIBRARY_PATH + shlibpath_overrides_runpath=no + sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib' + hardcode_into_libs=yes + ;; + +hpux9* | hpux10* | hpux11*) + # Give a soname corresponding to the major version so that dld.sl refuses to + # link against other versions. + version_type=sunos + need_lib_prefix=no + need_version=no + case $host_cpu in + ia64*) + shrext_cmds='.so' + hardcode_into_libs=yes + dynamic_linker="$host_os dld.so" + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + if test 32 = "$HPUX_IA64_MODE"; then + sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib" + sys_lib_dlsearch_path_spec=/usr/lib/hpux32 + else + sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64" + sys_lib_dlsearch_path_spec=/usr/lib/hpux64 + fi + ;; + hppa*64*) + shrext_cmds='.sl' + hardcode_into_libs=yes + dynamic_linker="$host_os dld.sl" + shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH + shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64" + sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec + ;; + *) + shrext_cmds='.sl' + dynamic_linker="$host_os dld.sl" + shlibpath_var=SHLIB_PATH + shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + ;; + esac + # HP-UX runs *really* slowly unless shared libraries are mode 555, ... + postinstall_cmds='chmod 555 $lib' + # or fails outright, so override atomically: + install_override_mode=555 + ;; + +interix[[3-9]]*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + +irix5* | irix6* | nonstopux*) + case $host_os in + nonstopux*) version_type=nonstopux ;; + *) + if test yes = "$lt_cv_prog_gnu_ld"; then + version_type=linux # correct to gnu/linux during the next big refactor + else + version_type=irix + fi ;; + esac + need_lib_prefix=no + need_version=no + soname_spec='$libname$release$shared_ext$major' + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$release$shared_ext $libname$shared_ext' + case $host_os in + irix5* | nonstopux*) + libsuff= shlibsuff= + ;; + *) + case $LD in # libtool.m4 will add one of these switches to LD + *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ") + libsuff= shlibsuff= libmagic=32-bit;; + *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ") + libsuff=32 shlibsuff=N32 libmagic=N32;; + *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ") + libsuff=64 shlibsuff=64 libmagic=64-bit;; + *) libsuff= shlibsuff= libmagic=never-match;; + esac + ;; + esac + shlibpath_var=LD_LIBRARY${shlibsuff}_PATH + shlibpath_overrides_runpath=no + sys_lib_search_path_spec="/usr/lib$libsuff /lib$libsuff /usr/local/lib$libsuff" + sys_lib_dlsearch_path_spec="/usr/lib$libsuff /lib$libsuff" + hardcode_into_libs=yes + ;; + +# No shared lib support for Linux oldld, aout, or coff. +linux*oldld* | linux*aout* | linux*coff*) + dynamic_linker=no + ;; + +linux*android*) + version_type=none # Android doesn't support versioned libraries. + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext' + soname_spec='$libname$release$shared_ext' + finish_cmds= + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + + # This implies no fast_install, which is unacceptable. + # Some rework will be needed to allow for fast_install + # before this can be enabled. + hardcode_into_libs=yes + + dynamic_linker='Android linker' + # Don't embed -rpath directories since the linker doesn't support them. + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + ;; + +# This must be glibc/ELF. +linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + + # Some binutils ld are patched to set DT_RUNPATH + AC_CACHE_VAL([lt_cv_shlibpath_overrides_runpath], + [lt_cv_shlibpath_overrides_runpath=no + save_LDFLAGS=$LDFLAGS + save_libdir=$libdir + eval "libdir=/foo; wl=\"$_LT_TAGVAR(lt_prog_compiler_wl, $1)\"; \ + LDFLAGS=\"\$LDFLAGS $_LT_TAGVAR(hardcode_libdir_flag_spec, $1)\"" + AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])], + [AS_IF([ ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null], + [lt_cv_shlibpath_overrides_runpath=yes])]) + LDFLAGS=$save_LDFLAGS + libdir=$save_libdir + ]) + shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath + + # This implies no fast_install, which is unacceptable. + # Some rework will be needed to allow for fast_install + # before this can be enabled. + hardcode_into_libs=yes + + # Add ABI-specific directories to the system library path. + sys_lib_dlsearch_path_spec="/lib64 /usr/lib64 /lib /usr/lib" + + # Ideally, we could use ldconfig to report *all* directores which are + # searched for libraries, however this is still not possible. Aside from not + # being certain /sbin/ldconfig is available, command + # 'ldconfig -N -X -v | grep ^/' on 64bit Fedora does not report /usr/lib64, + # even though it is searched at run-time. Try to do the best guess by + # appending ld.so.conf contents (and includes) to the search path. + if test -f /etc/ld.so.conf; then + lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \[$]2)); skip = 1; } { if (!skip) print \[$]0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[ ]*hwcap[ ]/d;s/[:, ]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '` + sys_lib_dlsearch_path_spec="$sys_lib_dlsearch_path_spec $lt_ld_extra" + fi + + # We used to test for /lib/ld.so.1 and disable shared libraries on + # powerpc, because MkLinux only supported shared libraries with the + # GNU dynamic linker. Since this was broken with cross compilers, + # most powerpc-linux boxes support dynamic linking these days and + # people can always --disable-shared, the test was removed, and we + # assume the GNU/Linux dynamic linker is in use. + dynamic_linker='GNU/Linux ld.so' + ;; + +netbsd*) + version_type=sunos + need_lib_prefix=no + need_version=no + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix' + finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir' + dynamic_linker='NetBSD (a.out) ld.so' + else + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + dynamic_linker='NetBSD ld.elf_so' + fi + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + ;; + +newsos6) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + ;; + +*nto* | *qnx*) + version_type=qnx + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + dynamic_linker='ldqnx.so' + ;; + +openbsd* | bitrig*) + version_type=sunos + sys_lib_dlsearch_path_spec=/usr/lib + need_lib_prefix=no + if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then + need_version=no + else + need_version=yes + fi + library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix' + finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + ;; + +os2*) + libname_spec='$name' + version_type=windows + shrext_cmds=.dll + need_version=no + need_lib_prefix=no + # OS/2 can only load a DLL with a base name of 8 characters or less. + soname_spec='`test -n "$os2dllname" && libname="$os2dllname"; + v=$($ECHO $release$versuffix | tr -d .-); + n=$($ECHO $libname | cut -b -$((8 - ${#v})) | tr . _); + $ECHO $n$v`$shared_ext' + library_names_spec='${libname}_dll.$libext' + dynamic_linker='OS/2 ld.exe' + shlibpath_var=BEGINLIBPATH + sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib" + sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec + postinstall_cmds='base_file=`basename \$file`~ + dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; $ECHO \$dlname'\''`~ + dldir=$destdir/`dirname \$dlpath`~ + test -d \$dldir || mkdir -p \$dldir~ + $install_prog $dir/$dlname \$dldir/$dlname~ + chmod a+x \$dldir/$dlname~ + if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then + eval '\''$striplib \$dldir/$dlname'\'' || exit \$?; + fi' + postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; $ECHO \$dlname'\''`~ + dlpath=$dir/\$dldll~ + $RM \$dlpath' + ;; + +osf3* | osf4* | osf5*) + version_type=osf + need_lib_prefix=no + need_version=no + soname_spec='$libname$release$shared_ext$major' + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + shlibpath_var=LD_LIBRARY_PATH + sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib" + sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec + ;; + +rdos*) + dynamic_linker=no + ;; + +solaris*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + # ldd complains unless libraries are executable + postinstall_cmds='chmod +x $lib' + ;; + +sunos4*) + version_type=sunos + library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix' + finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + if test yes = "$with_gnu_ld"; then + need_lib_prefix=no + fi + need_version=yes + ;; + +sysv4 | sysv4.3*) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + case $host_vendor in + sni) + shlibpath_overrides_runpath=no + need_lib_prefix=no + runpath_var=LD_RUN_PATH + ;; + siemens) + need_lib_prefix=no + ;; + motorola) + need_lib_prefix=no + need_version=no + shlibpath_overrides_runpath=no + sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib' + ;; + esac + ;; + +sysv4*MP*) + if test -d /usr/nec; then + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='$libname$shared_ext.$versuffix $libname$shared_ext.$major $libname$shared_ext' + soname_spec='$libname$shared_ext.$major' + shlibpath_var=LD_LIBRARY_PATH + fi + ;; + +sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*) + version_type=sco + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + if test yes = "$with_gnu_ld"; then + sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib' + else + sys_lib_search_path_spec='/usr/ccs/lib /usr/lib' + case $host_os in + sco3.2v5*) + sys_lib_search_path_spec="$sys_lib_search_path_spec /lib" + ;; + esac + fi + sys_lib_dlsearch_path_spec='/usr/lib' + ;; + +tpf*) + # TPF is a cross-target only. Preferred cross-host = GNU/Linux. + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + +uts4*) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + ;; + +*) + dynamic_linker=no + ;; +esac +AC_MSG_RESULT([$dynamic_linker]) +test no = "$dynamic_linker" && can_build_shared=no + +variables_saved_for_relink="PATH $shlibpath_var $runpath_var" +if test yes = "$GCC"; then + variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH" +fi + +if test set = "${lt_cv_sys_lib_search_path_spec+set}"; then + sys_lib_search_path_spec=$lt_cv_sys_lib_search_path_spec +fi + +if test set = "${lt_cv_sys_lib_dlsearch_path_spec+set}"; then + sys_lib_dlsearch_path_spec=$lt_cv_sys_lib_dlsearch_path_spec +fi + +# remember unaugmented sys_lib_dlsearch_path content for libtool script decls... +configure_time_dlsearch_path=$sys_lib_dlsearch_path_spec + +# ... but it needs LT_SYS_LIBRARY_PATH munging for other configure-time code +func_munge_path_list sys_lib_dlsearch_path_spec "$LT_SYS_LIBRARY_PATH" + +# to be used as default LT_SYS_LIBRARY_PATH value in generated libtool +configure_time_lt_sys_library_path=$LT_SYS_LIBRARY_PATH + +_LT_DECL([], [variables_saved_for_relink], [1], + [Variables whose values should be saved in libtool wrapper scripts and + restored at link time]) +_LT_DECL([], [need_lib_prefix], [0], + [Do we need the "lib" prefix for modules?]) +_LT_DECL([], [need_version], [0], [Do we need a version for libraries?]) +_LT_DECL([], [version_type], [0], [Library versioning type]) +_LT_DECL([], [runpath_var], [0], [Shared library runtime path variable]) +_LT_DECL([], [shlibpath_var], [0],[Shared library path variable]) +_LT_DECL([], [shlibpath_overrides_runpath], [0], + [Is shlibpath searched before the hard-coded library search path?]) +_LT_DECL([], [libname_spec], [1], [Format of library name prefix]) +_LT_DECL([], [library_names_spec], [1], + [[List of archive names. First name is the real one, the rest are links. + The last name is the one that the linker finds with -lNAME]]) +_LT_DECL([], [soname_spec], [1], + [[The coded name of the library, if different from the real name]]) +_LT_DECL([], [install_override_mode], [1], + [Permission mode override for installation of shared libraries]) +_LT_DECL([], [postinstall_cmds], [2], + [Command to use after installation of a shared archive]) +_LT_DECL([], [postuninstall_cmds], [2], + [Command to use after uninstallation of a shared archive]) +_LT_DECL([], [finish_cmds], [2], + [Commands used to finish a libtool library installation in a directory]) +_LT_DECL([], [finish_eval], [1], + [[As "finish_cmds", except a single script fragment to be evaled but + not shown]]) +_LT_DECL([], [hardcode_into_libs], [0], + [Whether we should hardcode library paths into libraries]) +_LT_DECL([], [sys_lib_search_path_spec], [2], + [Compile-time system search path for libraries]) +_LT_DECL([sys_lib_dlsearch_path_spec], [configure_time_dlsearch_path], [2], + [Detected run-time system search path for libraries]) +_LT_DECL([], [configure_time_lt_sys_library_path], [2], + [Explicit LT_SYS_LIBRARY_PATH set during ./configure time]) +])# _LT_SYS_DYNAMIC_LINKER + + +# _LT_PATH_TOOL_PREFIX(TOOL) +# -------------------------- +# find a file program that can recognize shared library +AC_DEFUN([_LT_PATH_TOOL_PREFIX], +[m4_require([_LT_DECL_EGREP])dnl +AC_MSG_CHECKING([for $1]) +AC_CACHE_VAL(lt_cv_path_MAGIC_CMD, +[case $MAGIC_CMD in +[[\\/*] | ?:[\\/]*]) + lt_cv_path_MAGIC_CMD=$MAGIC_CMD # Let the user override the test with a path. + ;; +*) + lt_save_MAGIC_CMD=$MAGIC_CMD + lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR +dnl $ac_dummy forces splitting on constant user-supplied paths. +dnl POSIX.2 word splitting is done only on the output of word expansions, +dnl not every word. This closes a longstanding sh security hole. + ac_dummy="m4_if([$2], , $PATH, [$2])" + for ac_dir in $ac_dummy; do + IFS=$lt_save_ifs + test -z "$ac_dir" && ac_dir=. + if test -f "$ac_dir/$1"; then + lt_cv_path_MAGIC_CMD=$ac_dir/"$1" + if test -n "$file_magic_test_file"; then + case $deplibs_check_method in + "file_magic "*) + file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"` + MAGIC_CMD=$lt_cv_path_MAGIC_CMD + if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null | + $EGREP "$file_magic_regex" > /dev/null; then + : + else + cat <<_LT_EOF 1>&2 + +*** Warning: the command libtool uses to detect shared libraries, +*** $file_magic_cmd, produces output that libtool cannot recognize. +*** The result is that libtool may fail to recognize shared libraries +*** as such. This will affect the creation of libtool libraries that +*** depend on shared libraries, but programs linked with such libtool +*** libraries will work regardless of this problem. Nevertheless, you +*** may want to report the problem to your system manager and/or to +*** bug-libtool@gnu.org + +_LT_EOF + fi ;; + esac + fi + break + fi + done + IFS=$lt_save_ifs + MAGIC_CMD=$lt_save_MAGIC_CMD + ;; +esac]) +MAGIC_CMD=$lt_cv_path_MAGIC_CMD +if test -n "$MAGIC_CMD"; then + AC_MSG_RESULT($MAGIC_CMD) +else + AC_MSG_RESULT(no) +fi +_LT_DECL([], [MAGIC_CMD], [0], + [Used to examine libraries when file_magic_cmd begins with "file"])dnl +])# _LT_PATH_TOOL_PREFIX + +# Old name: +AU_ALIAS([AC_PATH_TOOL_PREFIX], [_LT_PATH_TOOL_PREFIX]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_PATH_TOOL_PREFIX], []) + + +# _LT_PATH_MAGIC +# -------------- +# find a file program that can recognize a shared library +m4_defun([_LT_PATH_MAGIC], +[_LT_PATH_TOOL_PREFIX(${ac_tool_prefix}file, /usr/bin$PATH_SEPARATOR$PATH) +if test -z "$lt_cv_path_MAGIC_CMD"; then + if test -n "$ac_tool_prefix"; then + _LT_PATH_TOOL_PREFIX(file, /usr/bin$PATH_SEPARATOR$PATH) + else + MAGIC_CMD=: + fi +fi +])# _LT_PATH_MAGIC + + +# LT_PATH_LD +# ---------- +# find the pathname to the GNU or non-GNU linker +AC_DEFUN([LT_PATH_LD], +[AC_REQUIRE([AC_PROG_CC])dnl +AC_REQUIRE([AC_CANONICAL_HOST])dnl +AC_REQUIRE([AC_CANONICAL_BUILD])dnl +m4_require([_LT_DECL_SED])dnl +m4_require([_LT_DECL_EGREP])dnl +m4_require([_LT_PROG_ECHO_BACKSLASH])dnl + +AC_ARG_WITH([gnu-ld], + [AS_HELP_STRING([--with-gnu-ld], + [assume the C compiler uses GNU ld @<:@default=no@:>@])], + [test no = "$withval" || with_gnu_ld=yes], + [with_gnu_ld=no])dnl + +ac_prog=ld +if test yes = "$GCC"; then + # Check if gcc -print-prog-name=ld gives a path. + AC_MSG_CHECKING([for ld used by $CC]) + case $host in + *-*-mingw*) + # gcc leaves a trailing carriage return, which upsets mingw + ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;; + *) + ac_prog=`($CC -print-prog-name=ld) 2>&5` ;; + esac + case $ac_prog in + # Accept absolute paths. + [[\\/]]* | ?:[[\\/]]*) + re_direlt='/[[^/]][[^/]]*/\.\./' + # Canonicalize the pathname of ld + ac_prog=`$ECHO "$ac_prog"| $SED 's%\\\\%/%g'` + while $ECHO "$ac_prog" | $GREP "$re_direlt" > /dev/null 2>&1; do + ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"` + done + test -z "$LD" && LD=$ac_prog + ;; + "") + # If it fails, then pretend we aren't using GCC. + ac_prog=ld + ;; + *) + # If it is relative, then search for the first ld in PATH. + with_gnu_ld=unknown + ;; + esac +elif test yes = "$with_gnu_ld"; then + AC_MSG_CHECKING([for GNU ld]) +else + AC_MSG_CHECKING([for non-GNU ld]) +fi +AC_CACHE_VAL(lt_cv_path_LD, +[if test -z "$LD"; then + lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR + for ac_dir in $PATH; do + IFS=$lt_save_ifs + test -z "$ac_dir" && ac_dir=. + if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then + lt_cv_path_LD=$ac_dir/$ac_prog + # Check to see if the program is GNU ld. I'd rather use --version, + # but apparently some variants of GNU ld only accept -v. + # Break only if it was the GNU/non-GNU ld that we prefer. + case `"$lt_cv_path_LD" -v 2>&1 &1 conftest.i +cat conftest.i conftest.i >conftest2.i +: ${lt_DD:=$DD} +AC_PATH_PROGS_FEATURE_CHECK([lt_DD], [dd], +[if "$ac_path_lt_DD" bs=32 count=1 conftest.out 2>/dev/null; then + cmp -s conftest.i conftest.out \ + && ac_cv_path_lt_DD="$ac_path_lt_DD" ac_path_lt_DD_found=: +fi]) +rm -f conftest.i conftest2.i conftest.out]) +])# _LT_PATH_DD + + +# _LT_CMD_TRUNCATE +# ---------------- +# find command to truncate a binary pipe +m4_defun([_LT_CMD_TRUNCATE], +[m4_require([_LT_PATH_DD]) +AC_CACHE_CHECK([how to truncate binary pipes], [lt_cv_truncate_bin], +[printf 0123456789abcdef0123456789abcdef >conftest.i +cat conftest.i conftest.i >conftest2.i +lt_cv_truncate_bin= +if "$ac_cv_path_lt_DD" bs=32 count=1 conftest.out 2>/dev/null; then + cmp -s conftest.i conftest.out \ + && lt_cv_truncate_bin="$ac_cv_path_lt_DD bs=4096 count=1" +fi +rm -f conftest.i conftest2.i conftest.out +test -z "$lt_cv_truncate_bin" && lt_cv_truncate_bin="$SED -e 4q"]) +_LT_DECL([lt_truncate_bin], [lt_cv_truncate_bin], [1], + [Command to truncate a binary pipe]) +])# _LT_CMD_TRUNCATE + + +# _LT_CHECK_MAGIC_METHOD +# ---------------------- +# how to check for library dependencies +# -- PORTME fill in with the dynamic library characteristics +m4_defun([_LT_CHECK_MAGIC_METHOD], +[m4_require([_LT_DECL_EGREP]) +m4_require([_LT_DECL_OBJDUMP]) +AC_CACHE_CHECK([how to recognize dependent libraries], +lt_cv_deplibs_check_method, +[lt_cv_file_magic_cmd='$MAGIC_CMD' +lt_cv_file_magic_test_file= +lt_cv_deplibs_check_method='unknown' +# Need to set the preceding variable on all platforms that support +# interlibrary dependencies. +# 'none' -- dependencies not supported. +# 'unknown' -- same as none, but documents that we really don't know. +# 'pass_all' -- all dependencies passed with no checks. +# 'test_compile' -- check by making test program. +# 'file_magic [[regex]]' -- check by looking for files in library path +# that responds to the $file_magic_cmd with a given extended regex. +# If you have 'file' or equivalent on your system and you're not sure +# whether 'pass_all' will *always* work, you probably want this one. + +case $host_os in +aix[[4-9]]*) + lt_cv_deplibs_check_method=pass_all + ;; + +beos*) + lt_cv_deplibs_check_method=pass_all + ;; + +bsdi[[45]]*) + lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (shared object|dynamic lib)' + lt_cv_file_magic_cmd='/usr/bin/file -L' + lt_cv_file_magic_test_file=/shlib/libc.so + ;; + +cygwin*) + # func_win32_libid is a shell function defined in ltmain.sh + lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL' + lt_cv_file_magic_cmd='func_win32_libid' + ;; + +mingw* | pw32*) + # Base MSYS/MinGW do not provide the 'file' command needed by + # func_win32_libid shell function, so use a weaker test based on 'objdump', + # unless we find 'file', for example because we are cross-compiling. + if ( file / ) >/dev/null 2>&1; then + lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL' + lt_cv_file_magic_cmd='func_win32_libid' + else + # Keep this pattern in sync with the one in func_win32_libid. + lt_cv_deplibs_check_method='file_magic file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)' + lt_cv_file_magic_cmd='$OBJDUMP -f' + fi + ;; + +cegcc*) + # use the weaker test based on 'objdump'. See mingw*. + lt_cv_deplibs_check_method='file_magic file format pe-arm-.*little(.*architecture: arm)?' + lt_cv_file_magic_cmd='$OBJDUMP -f' + ;; + +darwin* | rhapsody*) + lt_cv_deplibs_check_method=pass_all + ;; + +freebsd* | dragonfly*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then + case $host_cpu in + i*86 ) + # Not sure whether the presence of OpenBSD here was a mistake. + # Let's accept both of them until this is cleared up. + lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD|DragonFly)/i[[3-9]]86 (compact )?demand paged shared library' + lt_cv_file_magic_cmd=/usr/bin/file + lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*` + ;; + esac + else + lt_cv_deplibs_check_method=pass_all + fi + ;; + +haiku*) + lt_cv_deplibs_check_method=pass_all + ;; + +hpux10.20* | hpux11*) + lt_cv_file_magic_cmd=/usr/bin/file + case $host_cpu in + ia64*) + lt_cv_deplibs_check_method='file_magic (s[[0-9]][[0-9]][[0-9]]|ELF-[[0-9]][[0-9]]) shared object file - IA64' + lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so + ;; + hppa*64*) + [lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF[ -][0-9][0-9])(-bit)?( [LM]SB)? shared object( file)?[, -]* PA-RISC [0-9]\.[0-9]'] + lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl + ;; + *) + lt_cv_deplibs_check_method='file_magic (s[[0-9]][[0-9]][[0-9]]|PA-RISC[[0-9]]\.[[0-9]]) shared library' + lt_cv_file_magic_test_file=/usr/lib/libc.sl + ;; + esac + ;; + +interix[[3-9]]*) + # PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here + lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so|\.a)$' + ;; + +irix5* | irix6* | nonstopux*) + case $LD in + *-32|*"-32 ") libmagic=32-bit;; + *-n32|*"-n32 ") libmagic=N32;; + *-64|*"-64 ") libmagic=64-bit;; + *) libmagic=never-match;; + esac + lt_cv_deplibs_check_method=pass_all + ;; + +# This must be glibc/ELF. +linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) + lt_cv_deplibs_check_method=pass_all + ;; + +netbsd*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then + lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|_pic\.a)$' + else + lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so|_pic\.a)$' + fi + ;; + +newos6*) + lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (executable|dynamic lib)' + lt_cv_file_magic_cmd=/usr/bin/file + lt_cv_file_magic_test_file=/usr/lib/libnls.so + ;; + +*nto* | *qnx*) + lt_cv_deplibs_check_method=pass_all + ;; + +openbsd* | bitrig*) + if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then + lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|\.so|_pic\.a)$' + else + lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|_pic\.a)$' + fi + ;; + +osf3* | osf4* | osf5*) + lt_cv_deplibs_check_method=pass_all + ;; + +rdos*) + lt_cv_deplibs_check_method=pass_all + ;; + +solaris*) + lt_cv_deplibs_check_method=pass_all + ;; + +sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*) + lt_cv_deplibs_check_method=pass_all + ;; + +sysv4 | sysv4.3*) + case $host_vendor in + motorola) + lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (shared object|dynamic lib) M[[0-9]][[0-9]]* Version [[0-9]]' + lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*` + ;; + ncr) + lt_cv_deplibs_check_method=pass_all + ;; + sequent) + lt_cv_file_magic_cmd='/bin/file' + lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB (shared object|dynamic lib )' + ;; + sni) + lt_cv_file_magic_cmd='/bin/file' + lt_cv_deplibs_check_method="file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB dynamic lib" + lt_cv_file_magic_test_file=/lib/libc.so + ;; + siemens) + lt_cv_deplibs_check_method=pass_all + ;; + pc) + lt_cv_deplibs_check_method=pass_all + ;; + esac + ;; + +tpf*) + lt_cv_deplibs_check_method=pass_all + ;; +os2*) + lt_cv_deplibs_check_method=pass_all + ;; +esac +]) + +file_magic_glob= +want_nocaseglob=no +if test "$build" = "$host"; then + case $host_os in + mingw* | pw32*) + if ( shopt | grep nocaseglob ) >/dev/null 2>&1; then + want_nocaseglob=yes + else + file_magic_glob=`echo aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ | $SED -e "s/\(..\)/s\/[[\1]]\/[[\1]]\/g;/g"` + fi + ;; + esac +fi + +file_magic_cmd=$lt_cv_file_magic_cmd +deplibs_check_method=$lt_cv_deplibs_check_method +test -z "$deplibs_check_method" && deplibs_check_method=unknown + +_LT_DECL([], [deplibs_check_method], [1], + [Method to check whether dependent libraries are shared objects]) +_LT_DECL([], [file_magic_cmd], [1], + [Command to use when deplibs_check_method = "file_magic"]) +_LT_DECL([], [file_magic_glob], [1], + [How to find potential files when deplibs_check_method = "file_magic"]) +_LT_DECL([], [want_nocaseglob], [1], + [Find potential files using nocaseglob when deplibs_check_method = "file_magic"]) +])# _LT_CHECK_MAGIC_METHOD + + +# LT_PATH_NM +# ---------- +# find the pathname to a BSD- or MS-compatible name lister +AC_DEFUN([LT_PATH_NM], +[AC_REQUIRE([AC_PROG_CC])dnl +AC_CACHE_CHECK([for BSD- or MS-compatible name lister (nm)], lt_cv_path_NM, +[if test -n "$NM"; then + # Let the user override the test. + lt_cv_path_NM=$NM +else + lt_nm_to_check=${ac_tool_prefix}nm + if test -n "$ac_tool_prefix" && test "$build" = "$host"; then + lt_nm_to_check="$lt_nm_to_check nm" + fi + for lt_tmp_nm in $lt_nm_to_check; do + lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR + for ac_dir in $PATH /usr/ccs/bin/elf /usr/ccs/bin /usr/ucb /bin; do + IFS=$lt_save_ifs + test -z "$ac_dir" && ac_dir=. + tmp_nm=$ac_dir/$lt_tmp_nm + if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext"; then + # Check to see if the nm accepts a BSD-compat flag. + # Adding the 'sed 1q' prevents false positives on HP-UX, which says: + # nm: unknown option "B" ignored + # Tru64's nm complains that /dev/null is an invalid object file + # MSYS converts /dev/null to NUL, MinGW nm treats NUL as empty + case $build_os in + mingw*) lt_bad_file=conftest.nm/nofile ;; + *) lt_bad_file=/dev/null ;; + esac + case `"$tmp_nm" -B $lt_bad_file 2>&1 | sed '1q'` in + *$lt_bad_file* | *'Invalid file or object type'*) + lt_cv_path_NM="$tmp_nm -B" + break 2 + ;; + *) + case `"$tmp_nm" -p /dev/null 2>&1 | sed '1q'` in + */dev/null*) + lt_cv_path_NM="$tmp_nm -p" + break 2 + ;; + *) + lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but + continue # so that we can try to find one that supports BSD flags + ;; + esac + ;; + esac + fi + done + IFS=$lt_save_ifs + done + : ${lt_cv_path_NM=no} +fi]) +if test no != "$lt_cv_path_NM"; then + NM=$lt_cv_path_NM +else + # Didn't find any BSD compatible name lister, look for dumpbin. + if test -n "$DUMPBIN"; then : + # Let the user override the test. + else + AC_CHECK_TOOLS(DUMPBIN, [dumpbin "link -dump"], :) + case `$DUMPBIN -symbols -headers /dev/null 2>&1 | sed '1q'` in + *COFF*) + DUMPBIN="$DUMPBIN -symbols -headers" + ;; + *) + DUMPBIN=: + ;; + esac + fi + AC_SUBST([DUMPBIN]) + if test : != "$DUMPBIN"; then + NM=$DUMPBIN + fi +fi +test -z "$NM" && NM=nm +AC_SUBST([NM]) +_LT_DECL([], [NM], [1], [A BSD- or MS-compatible name lister])dnl + +AC_CACHE_CHECK([the name lister ($NM) interface], [lt_cv_nm_interface], + [lt_cv_nm_interface="BSD nm" + echo "int some_variable = 0;" > conftest.$ac_ext + (eval echo "\"\$as_me:$LINENO: $ac_compile\"" >&AS_MESSAGE_LOG_FD) + (eval "$ac_compile" 2>conftest.err) + cat conftest.err >&AS_MESSAGE_LOG_FD + (eval echo "\"\$as_me:$LINENO: $NM \\\"conftest.$ac_objext\\\"\"" >&AS_MESSAGE_LOG_FD) + (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out) + cat conftest.err >&AS_MESSAGE_LOG_FD + (eval echo "\"\$as_me:$LINENO: output\"" >&AS_MESSAGE_LOG_FD) + cat conftest.out >&AS_MESSAGE_LOG_FD + if $GREP 'External.*some_variable' conftest.out > /dev/null; then + lt_cv_nm_interface="MS dumpbin" + fi + rm -f conftest*]) +])# LT_PATH_NM + +# Old names: +AU_ALIAS([AM_PROG_NM], [LT_PATH_NM]) +AU_ALIAS([AC_PROG_NM], [LT_PATH_NM]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AM_PROG_NM], []) +dnl AC_DEFUN([AC_PROG_NM], []) + +# _LT_CHECK_SHAREDLIB_FROM_LINKLIB +# -------------------------------- +# how to determine the name of the shared library +# associated with a specific link library. +# -- PORTME fill in with the dynamic library characteristics +m4_defun([_LT_CHECK_SHAREDLIB_FROM_LINKLIB], +[m4_require([_LT_DECL_EGREP]) +m4_require([_LT_DECL_OBJDUMP]) +m4_require([_LT_DECL_DLLTOOL]) +AC_CACHE_CHECK([how to associate runtime and link libraries], +lt_cv_sharedlib_from_linklib_cmd, +[lt_cv_sharedlib_from_linklib_cmd='unknown' + +case $host_os in +cygwin* | mingw* | pw32* | cegcc*) + # two different shell functions defined in ltmain.sh; + # decide which one to use based on capabilities of $DLLTOOL + case `$DLLTOOL --help 2>&1` in + *--identify-strict*) + lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib + ;; + *) + lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib_fallback + ;; + esac + ;; +*) + # fallback: assume linklib IS sharedlib + lt_cv_sharedlib_from_linklib_cmd=$ECHO + ;; +esac +]) +sharedlib_from_linklib_cmd=$lt_cv_sharedlib_from_linklib_cmd +test -z "$sharedlib_from_linklib_cmd" && sharedlib_from_linklib_cmd=$ECHO + +_LT_DECL([], [sharedlib_from_linklib_cmd], [1], + [Command to associate shared and link libraries]) +])# _LT_CHECK_SHAREDLIB_FROM_LINKLIB + + +# _LT_PATH_MANIFEST_TOOL +# ---------------------- +# locate the manifest tool +m4_defun([_LT_PATH_MANIFEST_TOOL], +[AC_CHECK_TOOL(MANIFEST_TOOL, mt, :) +test -z "$MANIFEST_TOOL" && MANIFEST_TOOL=mt +AC_CACHE_CHECK([if $MANIFEST_TOOL is a manifest tool], [lt_cv_path_mainfest_tool], + [lt_cv_path_mainfest_tool=no + echo "$as_me:$LINENO: $MANIFEST_TOOL '-?'" >&AS_MESSAGE_LOG_FD + $MANIFEST_TOOL '-?' 2>conftest.err > conftest.out + cat conftest.err >&AS_MESSAGE_LOG_FD + if $GREP 'Manifest Tool' conftest.out > /dev/null; then + lt_cv_path_mainfest_tool=yes + fi + rm -f conftest*]) +if test yes != "$lt_cv_path_mainfest_tool"; then + MANIFEST_TOOL=: +fi +_LT_DECL([], [MANIFEST_TOOL], [1], [Manifest tool])dnl +])# _LT_PATH_MANIFEST_TOOL + + +# _LT_DLL_DEF_P([FILE]) +# --------------------- +# True iff FILE is a Windows DLL '.def' file. +# Keep in sync with func_dll_def_p in the libtool script +AC_DEFUN([_LT_DLL_DEF_P], +[dnl + test DEF = "`$SED -n dnl + -e '\''s/^[[ ]]*//'\'' dnl Strip leading whitespace + -e '\''/^\(;.*\)*$/d'\'' dnl Delete empty lines and comments + -e '\''s/^\(EXPORTS\|LIBRARY\)\([[ ]].*\)*$/DEF/p'\'' dnl + -e q dnl Only consider the first "real" line + $1`" dnl +])# _LT_DLL_DEF_P + + +# LT_LIB_M +# -------- +# check for math library +AC_DEFUN([LT_LIB_M], +[AC_REQUIRE([AC_CANONICAL_HOST])dnl +LIBM= +case $host in +*-*-beos* | *-*-cegcc* | *-*-cygwin* | *-*-haiku* | *-*-pw32* | *-*-darwin*) + # These system don't have libm, or don't need it + ;; +*-ncr-sysv4.3*) + AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM=-lmw) + AC_CHECK_LIB(m, cos, LIBM="$LIBM -lm") + ;; +*) + AC_CHECK_LIB(m, cos, LIBM=-lm) + ;; +esac +AC_SUBST([LIBM]) +])# LT_LIB_M + +# Old name: +AU_ALIAS([AC_CHECK_LIBM], [LT_LIB_M]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_CHECK_LIBM], []) + + +# _LT_COMPILER_NO_RTTI([TAGNAME]) +# ------------------------------- +m4_defun([_LT_COMPILER_NO_RTTI], +[m4_require([_LT_TAG_COMPILER])dnl + +_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)= + +if test yes = "$GCC"; then + case $cc_basename in + nvcc*) + _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -Xcompiler -fno-builtin' ;; + *) + _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin' ;; + esac + + _LT_COMPILER_OPTION([if $compiler supports -fno-rtti -fno-exceptions], + lt_cv_prog_compiler_rtti_exceptions, + [-fno-rtti -fno-exceptions], [], + [_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)="$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1) -fno-rtti -fno-exceptions"]) +fi +_LT_TAGDECL([no_builtin_flag], [lt_prog_compiler_no_builtin_flag], [1], + [Compiler flag to turn off builtin functions]) +])# _LT_COMPILER_NO_RTTI + + +# _LT_CMD_GLOBAL_SYMBOLS +# ---------------------- +m4_defun([_LT_CMD_GLOBAL_SYMBOLS], +[AC_REQUIRE([AC_CANONICAL_HOST])dnl +AC_REQUIRE([AC_PROG_CC])dnl +AC_REQUIRE([AC_PROG_AWK])dnl +AC_REQUIRE([LT_PATH_NM])dnl +AC_REQUIRE([LT_PATH_LD])dnl +m4_require([_LT_DECL_SED])dnl +m4_require([_LT_DECL_EGREP])dnl +m4_require([_LT_TAG_COMPILER])dnl + +# Check for command to grab the raw symbol name followed by C symbol from nm. +AC_MSG_CHECKING([command to parse $NM output from $compiler object]) +AC_CACHE_VAL([lt_cv_sys_global_symbol_pipe], +[ +# These are sane defaults that work on at least a few old systems. +# [They come from Ultrix. What could be older than Ultrix?!! ;)] + +# Character class describing NM global symbol codes. +symcode='[[BCDEGRST]]' + +# Regexp to match symbols that can be accessed directly from C. +sympat='\([[_A-Za-z]][[_A-Za-z0-9]]*\)' + +# Define system-specific variables. +case $host_os in +aix*) + symcode='[[BCDT]]' + ;; +cygwin* | mingw* | pw32* | cegcc*) + symcode='[[ABCDGISTW]]' + ;; +hpux*) + if test ia64 = "$host_cpu"; then + symcode='[[ABCDEGRST]]' + fi + ;; +irix* | nonstopux*) + symcode='[[BCDEGRST]]' + ;; +osf*) + symcode='[[BCDEGQRST]]' + ;; +solaris*) + symcode='[[BDRT]]' + ;; +sco3.2v5*) + symcode='[[DT]]' + ;; +sysv4.2uw2*) + symcode='[[DT]]' + ;; +sysv5* | sco5v6* | unixware* | OpenUNIX*) + symcode='[[ABDT]]' + ;; +sysv4) + symcode='[[DFNSTU]]' + ;; +esac + +# If we're using GNU nm, then use its standard symbol codes. +case `$NM -V 2>&1` in +*GNU* | *'with BFD'*) + symcode='[[ABCDGIRSTW]]' ;; +esac + +if test "$lt_cv_nm_interface" = "MS dumpbin"; then + # Gets list of data symbols to import. + lt_cv_sys_global_symbol_to_import="sed -n -e 's/^I .* \(.*\)$/\1/p'" + # Adjust the below global symbol transforms to fixup imported variables. + lt_cdecl_hook=" -e 's/^I .* \(.*\)$/extern __declspec(dllimport) char \1;/p'" + lt_c_name_hook=" -e 's/^I .* \(.*\)$/ {\"\1\", (void *) 0},/p'" + lt_c_name_lib_hook="\ + -e 's/^I .* \(lib.*\)$/ {\"\1\", (void *) 0},/p'\ + -e 's/^I .* \(.*\)$/ {\"lib\1\", (void *) 0},/p'" +else + # Disable hooks by default. + lt_cv_sys_global_symbol_to_import= + lt_cdecl_hook= + lt_c_name_hook= + lt_c_name_lib_hook= +fi + +# Transform an extracted symbol line into a proper C declaration. +# Some systems (esp. on ia64) link data and code symbols differently, +# so use this general approach. +lt_cv_sys_global_symbol_to_cdecl="sed -n"\ +$lt_cdecl_hook\ +" -e 's/^T .* \(.*\)$/extern int \1();/p'"\ +" -e 's/^$symcode$symcode* .* \(.*\)$/extern char \1;/p'" + +# Transform an extracted symbol line into symbol name and symbol address +lt_cv_sys_global_symbol_to_c_name_address="sed -n"\ +$lt_c_name_hook\ +" -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\ +" -e 's/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/p'" + +# Transform an extracted symbol line into symbol name with lib prefix and +# symbol address. +lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n"\ +$lt_c_name_lib_hook\ +" -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\ +" -e 's/^$symcode$symcode* .* \(lib.*\)$/ {\"\1\", (void *) \&\1},/p'"\ +" -e 's/^$symcode$symcode* .* \(.*\)$/ {\"lib\1\", (void *) \&\1},/p'" + +# Handle CRLF in mingw tool chain +opt_cr= +case $build_os in +mingw*) + opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp + ;; +esac + +# Try without a prefix underscore, then with it. +for ac_symprfx in "" "_"; do + + # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol. + symxfrm="\\1 $ac_symprfx\\2 \\2" + + # Write the raw and C identifiers. + if test "$lt_cv_nm_interface" = "MS dumpbin"; then + # Fake it for dumpbin and say T for any non-static function, + # D for any global variable and I for any imported variable. + # Also find C++ and __fastcall symbols from MSVC++, + # which start with @ or ?. + lt_cv_sys_global_symbol_pipe="$AWK ['"\ +" {last_section=section; section=\$ 3};"\ +" /^COFF SYMBOL TABLE/{for(i in hide) delete hide[i]};"\ +" /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\ +" /^ *Symbol name *: /{split(\$ 0,sn,\":\"); si=substr(sn[2],2)};"\ +" /^ *Type *: code/{print \"T\",si,substr(si,length(prfx))};"\ +" /^ *Type *: data/{print \"I\",si,substr(si,length(prfx))};"\ +" \$ 0!~/External *\|/{next};"\ +" / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\ +" {if(hide[section]) next};"\ +" {f=\"D\"}; \$ 0~/\(\).*\|/{f=\"T\"};"\ +" {split(\$ 0,a,/\||\r/); split(a[2],s)};"\ +" s[1]~/^[@?]/{print f,s[1],s[1]; next};"\ +" s[1]~prfx {split(s[1],t,\"@\"); print f,t[1],substr(t[1],length(prfx))}"\ +" ' prfx=^$ac_symprfx]" + else + lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[[ ]]\($symcode$symcode*\)[[ ]][[ ]]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'" + fi + lt_cv_sys_global_symbol_pipe="$lt_cv_sys_global_symbol_pipe | sed '/ __gnu_lto/d'" + + # Check to see that the pipe works correctly. + pipe_works=no + + rm -f conftest* + cat > conftest.$ac_ext <<_LT_EOF +#ifdef __cplusplus +extern "C" { +#endif +char nm_test_var; +void nm_test_func(void); +void nm_test_func(void){} +#ifdef __cplusplus +} +#endif +int main(){nm_test_var='a';nm_test_func();return(0);} +_LT_EOF + + if AC_TRY_EVAL(ac_compile); then + # Now try to grab the symbols. + nlist=conftest.nm + if AC_TRY_EVAL(NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist) && test -s "$nlist"; then + # Try sorting and uniquifying the output. + if sort "$nlist" | uniq > "$nlist"T; then + mv -f "$nlist"T "$nlist" + else + rm -f "$nlist"T + fi + + # Make sure that we snagged all the symbols we need. + if $GREP ' nm_test_var$' "$nlist" >/dev/null; then + if $GREP ' nm_test_func$' "$nlist" >/dev/null; then + cat <<_LT_EOF > conftest.$ac_ext +/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */ +#if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE +/* DATA imports from DLLs on WIN32 can't be const, because runtime + relocations are performed -- see ld's documentation on pseudo-relocs. */ +# define LT@&t@_DLSYM_CONST +#elif defined __osf__ +/* This system does not cope well with relocations in const data. */ +# define LT@&t@_DLSYM_CONST +#else +# define LT@&t@_DLSYM_CONST const +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +_LT_EOF + # Now generate the symbol file. + eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext' + + cat <<_LT_EOF >> conftest.$ac_ext + +/* The mapping between symbol names and symbols. */ +LT@&t@_DLSYM_CONST struct { + const char *name; + void *address; +} +lt__PROGRAM__LTX_preloaded_symbols[[]] = +{ + { "@PROGRAM@", (void *) 0 }, +_LT_EOF + $SED "s/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext + cat <<\_LT_EOF >> conftest.$ac_ext + {0, (void *) 0} +}; + +/* This works around a problem in FreeBSD linker */ +#ifdef FREEBSD_WORKAROUND +static const void *lt_preloaded_setup() { + return lt__PROGRAM__LTX_preloaded_symbols; +} +#endif + +#ifdef __cplusplus +} +#endif +_LT_EOF + # Now try linking the two files. + mv conftest.$ac_objext conftstm.$ac_objext + lt_globsym_save_LIBS=$LIBS + lt_globsym_save_CFLAGS=$CFLAGS + LIBS=conftstm.$ac_objext + CFLAGS="$CFLAGS$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)" + if AC_TRY_EVAL(ac_link) && test -s conftest$ac_exeext; then + pipe_works=yes + fi + LIBS=$lt_globsym_save_LIBS + CFLAGS=$lt_globsym_save_CFLAGS + else + echo "cannot find nm_test_func in $nlist" >&AS_MESSAGE_LOG_FD + fi + else + echo "cannot find nm_test_var in $nlist" >&AS_MESSAGE_LOG_FD + fi + else + echo "cannot run $lt_cv_sys_global_symbol_pipe" >&AS_MESSAGE_LOG_FD + fi + else + echo "$progname: failed program was:" >&AS_MESSAGE_LOG_FD + cat conftest.$ac_ext >&5 + fi + rm -rf conftest* conftst* + + # Do not use the global_symbol_pipe unless it works. + if test yes = "$pipe_works"; then + break + else + lt_cv_sys_global_symbol_pipe= + fi +done +]) +if test -z "$lt_cv_sys_global_symbol_pipe"; then + lt_cv_sys_global_symbol_to_cdecl= +fi +if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then + AC_MSG_RESULT(failed) +else + AC_MSG_RESULT(ok) +fi + +# Response file support. +if test "$lt_cv_nm_interface" = "MS dumpbin"; then + nm_file_list_spec='@' +elif $NM --help 2>/dev/null | grep '[[@]]FILE' >/dev/null; then + nm_file_list_spec='@' +fi + +_LT_DECL([global_symbol_pipe], [lt_cv_sys_global_symbol_pipe], [1], + [Take the output of nm and produce a listing of raw symbols and C names]) +_LT_DECL([global_symbol_to_cdecl], [lt_cv_sys_global_symbol_to_cdecl], [1], + [Transform the output of nm in a proper C declaration]) +_LT_DECL([global_symbol_to_import], [lt_cv_sys_global_symbol_to_import], [1], + [Transform the output of nm into a list of symbols to manually relocate]) +_LT_DECL([global_symbol_to_c_name_address], + [lt_cv_sys_global_symbol_to_c_name_address], [1], + [Transform the output of nm in a C name address pair]) +_LT_DECL([global_symbol_to_c_name_address_lib_prefix], + [lt_cv_sys_global_symbol_to_c_name_address_lib_prefix], [1], + [Transform the output of nm in a C name address pair when lib prefix is needed]) +_LT_DECL([nm_interface], [lt_cv_nm_interface], [1], + [The name lister interface]) +_LT_DECL([], [nm_file_list_spec], [1], + [Specify filename containing input files for $NM]) +]) # _LT_CMD_GLOBAL_SYMBOLS + + +# _LT_COMPILER_PIC([TAGNAME]) +# --------------------------- +m4_defun([_LT_COMPILER_PIC], +[m4_require([_LT_TAG_COMPILER])dnl +_LT_TAGVAR(lt_prog_compiler_wl, $1)= +_LT_TAGVAR(lt_prog_compiler_pic, $1)= +_LT_TAGVAR(lt_prog_compiler_static, $1)= + +m4_if([$1], [CXX], [ + # C++ specific cases for pic, static, wl, etc. + if test yes = "$GXX"; then + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + + case $host_os in + aix*) + # All AIX code is PIC. + if test ia64 = "$host_cpu"; then + # AIX 5 now supports IA64 processor + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + fi + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + + amigaos*) + case $host_cpu in + powerpc) + # see comment about AmigaOS4 .so support + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + m68k) + # FIXME: we need at least 68020 code to build shared libraries, but + # adding the '-m68020' flag to GCC prevents building anything better, + # like '-m68040'. + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4' + ;; + esac + ;; + + beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*) + # PIC is the default for these OSes. + ;; + mingw* | cygwin* | os2* | pw32* | cegcc*) + # This hack is so that the source file can tell whether it is being + # built for inclusion in a dll (and should export symbols for example). + # Although the cygwin gcc ignores -fPIC, still need this for old-style + # (--disable-auto-import) libraries + m4_if([$1], [GCJ], [], + [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) + case $host_os in + os2*) + _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static' + ;; + esac + ;; + darwin* | rhapsody*) + # PIC is the default on this platform + # Common symbols not allowed in MH_DYLIB files + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common' + ;; + *djgpp*) + # DJGPP does not support shared libraries at all + _LT_TAGVAR(lt_prog_compiler_pic, $1)= + ;; + haiku*) + # PIC is the default for Haiku. + # The "-static" flag exists, but is broken. + _LT_TAGVAR(lt_prog_compiler_static, $1)= + ;; + interix[[3-9]]*) + # Interix 3.x gcc -fpic/-fPIC options generate broken code. + # Instead, we relocate shared libraries at runtime. + ;; + sysv4*MP*) + if test -d /usr/nec; then + _LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic + fi + ;; + hpux*) + # PIC is the default for 64-bit PA HP-UX, but not for 32-bit + # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag + # sets the default TLS model and affects inlining. + case $host_cpu in + hppa*64*) + ;; + *) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + esac + ;; + *qnx* | *nto*) + # QNX uses GNU C++, but need to define -shared option too, otherwise + # it will coredump. + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared' + ;; + *) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + esac + else + case $host_os in + aix[[4-9]]*) + # All AIX code is PIC. + if test ia64 = "$host_cpu"; then + # AIX 5 now supports IA64 processor + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + else + _LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp' + fi + ;; + chorus*) + case $cc_basename in + cxch68*) + # Green Hills C++ Compiler + # _LT_TAGVAR(lt_prog_compiler_static, $1)="--no_auto_instantiation -u __main -u __premain -u _abort -r $COOL_DIR/lib/libOrb.a $MVME_DIR/lib/CC/libC.a $MVME_DIR/lib/classix/libcx.s.a" + ;; + esac + ;; + mingw* | cygwin* | os2* | pw32* | cegcc*) + # This hack is so that the source file can tell whether it is being + # built for inclusion in a dll (and should export symbols for example). + m4_if([$1], [GCJ], [], + [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) + ;; + dgux*) + case $cc_basename in + ec++*) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + ;; + ghcx*) + # Green Hills C++ Compiler + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' + ;; + *) + ;; + esac + ;; + freebsd* | dragonfly*) + # FreeBSD uses GNU C++ + ;; + hpux9* | hpux10* | hpux11*) + case $cc_basename in + CC*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive' + if test ia64 != "$host_cpu"; then + _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z' + fi + ;; + aCC*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive' + case $host_cpu in + hppa*64*|ia64*) + # +Z the default + ;; + *) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z' + ;; + esac + ;; + *) + ;; + esac + ;; + interix*) + # This is c89, which is MS Visual C++ (no shared libs) + # Anyone wants to do a port? + ;; + irix5* | irix6* | nonstopux*) + case $cc_basename in + CC*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' + # CC pic flag -KPIC is the default. + ;; + *) + ;; + esac + ;; + linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) + case $cc_basename in + KCC*) + # KAI C++ Compiler + _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + ecpc* ) + # old Intel C++ for x86_64, which still supported -KPIC. + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + ;; + icpc* ) + # Intel C++, used to be incompatible with GCC. + # ICC 10 doesn't accept -KPIC any more. + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + ;; + pgCC* | pgcpp*) + # Portland Group C++ compiler + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + cxx*) + # Compaq C++ + # Make sure the PIC flag is empty. It appears that all Alpha + # Linux and Compaq Tru64 Unix objects are PIC. + _LT_TAGVAR(lt_prog_compiler_pic, $1)= + _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' + ;; + xlc* | xlC* | bgxl[[cC]]* | mpixl[[cC]]*) + # IBM XL 8.0, 9.0 on PPC and BlueGene + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink' + ;; + *) + case `$CC -V 2>&1 | sed 5q` in + *Sun\ C*) + # Sun C++ 5.9 + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ' + ;; + esac + ;; + esac + ;; + lynxos*) + ;; + m88k*) + ;; + mvs*) + case $cc_basename in + cxx*) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-W c,exportall' + ;; + *) + ;; + esac + ;; + netbsd*) + ;; + *qnx* | *nto*) + # QNX uses GNU C++, but need to define -shared option too, otherwise + # it will coredump. + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared' + ;; + osf3* | osf4* | osf5*) + case $cc_basename in + KCC*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,' + ;; + RCC*) + # Rational C++ 2.4.1 + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' + ;; + cxx*) + # Digital/Compaq C++ + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + # Make sure the PIC flag is empty. It appears that all Alpha + # Linux and Compaq Tru64 Unix objects are PIC. + _LT_TAGVAR(lt_prog_compiler_pic, $1)= + _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' + ;; + *) + ;; + esac + ;; + psos*) + ;; + solaris*) + case $cc_basename in + CC* | sunCC*) + # Sun C++ 4.2, 5.x and Centerline C++ + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ' + ;; + gcx*) + # Green Hills C++ Compiler + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC' + ;; + *) + ;; + esac + ;; + sunos4*) + case $cc_basename in + CC*) + # Sun C++ 4.x + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + lcc*) + # Lucid + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' + ;; + *) + ;; + esac + ;; + sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*) + case $cc_basename in + CC*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + esac + ;; + tandem*) + case $cc_basename in + NCC*) + # NonStop-UX NCC 3.20 + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + ;; + *) + ;; + esac + ;; + vxworks*) + ;; + *) + _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no + ;; + esac + fi +], +[ + if test yes = "$GCC"; then + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + + case $host_os in + aix*) + # All AIX code is PIC. + if test ia64 = "$host_cpu"; then + # AIX 5 now supports IA64 processor + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + fi + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + + amigaos*) + case $host_cpu in + powerpc) + # see comment about AmigaOS4 .so support + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + m68k) + # FIXME: we need at least 68020 code to build shared libraries, but + # adding the '-m68020' flag to GCC prevents building anything better, + # like '-m68040'. + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4' + ;; + esac + ;; + + beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*) + # PIC is the default for these OSes. + ;; + + mingw* | cygwin* | pw32* | os2* | cegcc*) + # This hack is so that the source file can tell whether it is being + # built for inclusion in a dll (and should export symbols for example). + # Although the cygwin gcc ignores -fPIC, still need this for old-style + # (--disable-auto-import) libraries + m4_if([$1], [GCJ], [], + [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) + case $host_os in + os2*) + _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static' + ;; + esac + ;; + + darwin* | rhapsody*) + # PIC is the default on this platform + # Common symbols not allowed in MH_DYLIB files + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common' + ;; + + haiku*) + # PIC is the default for Haiku. + # The "-static" flag exists, but is broken. + _LT_TAGVAR(lt_prog_compiler_static, $1)= + ;; + + hpux*) + # PIC is the default for 64-bit PA HP-UX, but not for 32-bit + # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag + # sets the default TLS model and affects inlining. + case $host_cpu in + hppa*64*) + # +Z the default + ;; + *) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + esac + ;; + + interix[[3-9]]*) + # Interix 3.x gcc -fpic/-fPIC options generate broken code. + # Instead, we relocate shared libraries at runtime. + ;; + + msdosdjgpp*) + # Just because we use GCC doesn't mean we suddenly get shared libraries + # on systems that don't support them. + _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no + enable_shared=no + ;; + + *nto* | *qnx*) + # QNX uses GNU C++, but need to define -shared option too, otherwise + # it will coredump. + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared' + ;; + + sysv4*MP*) + if test -d /usr/nec; then + _LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic + fi + ;; + + *) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + esac + + case $cc_basename in + nvcc*) # Cuda Compiler Driver 2.2 + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Xlinker ' + if test -n "$_LT_TAGVAR(lt_prog_compiler_pic, $1)"; then + _LT_TAGVAR(lt_prog_compiler_pic, $1)="-Xcompiler $_LT_TAGVAR(lt_prog_compiler_pic, $1)" + fi + ;; + esac + else + # PORTME Check for flag to pass linker flags through the system compiler. + case $host_os in + aix*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + if test ia64 = "$host_cpu"; then + # AIX 5 now supports IA64 processor + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + else + _LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp' + fi + ;; + + darwin* | rhapsody*) + # PIC is the default on this platform + # Common symbols not allowed in MH_DYLIB files + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common' + case $cc_basename in + nagfor*) + # NAG Fortran compiler + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,-Wl,,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + esac + ;; + + mingw* | cygwin* | pw32* | os2* | cegcc*) + # This hack is so that the source file can tell whether it is being + # built for inclusion in a dll (and should export symbols for example). + m4_if([$1], [GCJ], [], + [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) + case $host_os in + os2*) + _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static' + ;; + esac + ;; + + hpux9* | hpux10* | hpux11*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but + # not for PA HP-UX. + case $host_cpu in + hppa*64*|ia64*) + # +Z the default + ;; + *) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z' + ;; + esac + # Is there a better lt_prog_compiler_static that works with the bundled CC? + _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive' + ;; + + irix5* | irix6* | nonstopux*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + # PIC (with -KPIC) is the default. + _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' + ;; + + linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) + case $cc_basename in + # old Intel for x86_64, which still supported -KPIC. + ecc*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + ;; + # icc used to be incompatible with GCC. + # ICC 10 doesn't accept -KPIC any more. + icc* | ifort*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + ;; + # Lahey Fortran 8.1. + lf95*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='--shared' + _LT_TAGVAR(lt_prog_compiler_static, $1)='--static' + ;; + nagfor*) + # NAG Fortran compiler + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,-Wl,,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + tcc*) + # Fabrice Bellard et al's Tiny C Compiler + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + ;; + pgcc* | pgf77* | pgf90* | pgf95* | pgfortran*) + # Portland Group compilers (*not* the Pentium gcc compiler, + # which looks to be a dead project) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + ccc*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + # All Alpha code is PIC. + _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' + ;; + xl* | bgxl* | bgf* | mpixl*) + # IBM XL C 8.0/Fortran 10.1, 11.1 on PPC and BlueGene + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink' + ;; + *) + case `$CC -V 2>&1 | sed 5q` in + *Sun\ Ceres\ Fortran* | *Sun*Fortran*\ [[1-7]].* | *Sun*Fortran*\ 8.[[0-3]]*) + # Sun Fortran 8.3 passes all unrecognized flags to the linker + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + _LT_TAGVAR(lt_prog_compiler_wl, $1)='' + ;; + *Sun\ F* | *Sun*Fortran*) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ' + ;; + *Sun\ C*) + # Sun C 5.9 + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + ;; + *Intel*\ [[CF]]*Compiler*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + ;; + *Portland\ Group*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + esac + ;; + esac + ;; + + newsos6) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + + *nto* | *qnx*) + # QNX uses GNU C++, but need to define -shared option too, otherwise + # it will coredump. + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared' + ;; + + osf3* | osf4* | osf5*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + # All OSF/1 code is PIC. + _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' + ;; + + rdos*) + _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' + ;; + + solaris*) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + case $cc_basename in + f77* | f90* | f95* | sunf77* | sunf90* | sunf95*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ';; + *) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,';; + esac + ;; + + sunos4*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + + sysv4 | sysv4.2uw2* | sysv4.3*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + + sysv4*MP*) + if test -d /usr/nec; then + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-Kconform_pic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + fi + ;; + + sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + + unicos*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no + ;; + + uts4*) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + + *) + _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no + ;; + esac + fi +]) +case $host_os in + # For platforms that do not support PIC, -DPIC is meaningless: + *djgpp*) + _LT_TAGVAR(lt_prog_compiler_pic, $1)= + ;; + *) + _LT_TAGVAR(lt_prog_compiler_pic, $1)="$_LT_TAGVAR(lt_prog_compiler_pic, $1)@&t@m4_if([$1],[],[ -DPIC],[m4_if([$1],[CXX],[ -DPIC],[])])" + ;; +esac + +AC_CACHE_CHECK([for $compiler option to produce PIC], + [_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)], + [_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)=$_LT_TAGVAR(lt_prog_compiler_pic, $1)]) +_LT_TAGVAR(lt_prog_compiler_pic, $1)=$_LT_TAGVAR(lt_cv_prog_compiler_pic, $1) + +# +# Check to make sure the PIC flag actually works. +# +if test -n "$_LT_TAGVAR(lt_prog_compiler_pic, $1)"; then + _LT_COMPILER_OPTION([if $compiler PIC flag $_LT_TAGVAR(lt_prog_compiler_pic, $1) works], + [_LT_TAGVAR(lt_cv_prog_compiler_pic_works, $1)], + [$_LT_TAGVAR(lt_prog_compiler_pic, $1)@&t@m4_if([$1],[],[ -DPIC],[m4_if([$1],[CXX],[ -DPIC],[])])], [], + [case $_LT_TAGVAR(lt_prog_compiler_pic, $1) in + "" | " "*) ;; + *) _LT_TAGVAR(lt_prog_compiler_pic, $1)=" $_LT_TAGVAR(lt_prog_compiler_pic, $1)" ;; + esac], + [_LT_TAGVAR(lt_prog_compiler_pic, $1)= + _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no]) +fi +_LT_TAGDECL([pic_flag], [lt_prog_compiler_pic], [1], + [Additional compiler flags for building library objects]) + +_LT_TAGDECL([wl], [lt_prog_compiler_wl], [1], + [How to pass a linker flag through the compiler]) +# +# Check to make sure the static flag actually works. +# +wl=$_LT_TAGVAR(lt_prog_compiler_wl, $1) eval lt_tmp_static_flag=\"$_LT_TAGVAR(lt_prog_compiler_static, $1)\" +_LT_LINKER_OPTION([if $compiler static flag $lt_tmp_static_flag works], + _LT_TAGVAR(lt_cv_prog_compiler_static_works, $1), + $lt_tmp_static_flag, + [], + [_LT_TAGVAR(lt_prog_compiler_static, $1)=]) +_LT_TAGDECL([link_static_flag], [lt_prog_compiler_static], [1], + [Compiler flag to prevent dynamic linking]) +])# _LT_COMPILER_PIC + + +# _LT_LINKER_SHLIBS([TAGNAME]) +# ---------------------------- +# See if the linker supports building shared libraries. +m4_defun([_LT_LINKER_SHLIBS], +[AC_REQUIRE([LT_PATH_LD])dnl +AC_REQUIRE([LT_PATH_NM])dnl +m4_require([_LT_PATH_MANIFEST_TOOL])dnl +m4_require([_LT_FILEUTILS_DEFAULTS])dnl +m4_require([_LT_DECL_EGREP])dnl +m4_require([_LT_DECL_SED])dnl +m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl +m4_require([_LT_TAG_COMPILER])dnl +AC_MSG_CHECKING([whether the $compiler linker ($LD) supports shared libraries]) +m4_if([$1], [CXX], [ + _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols' + _LT_TAGVAR(exclude_expsyms, $1)=['_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*'] + case $host_os in + aix[[4-9]]*) + # If we're using GNU nm, then we don't want the "-C" option. + # -C means demangle to GNU nm, but means don't demangle to AIX nm. + # Without the "-l" option, or with the "-B" option, AIX nm treats + # weak defined symbols like other global defined symbols, whereas + # GNU nm marks them as "W". + # While the 'weak' keyword is ignored in the Export File, we need + # it in the Import File for the 'aix-soname' feature, so we have + # to replace the "-B" option with "-P" for AIX nm. + if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then + _LT_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && ([substr](\$ 3,1,1) != ".")) { if (\$ 2 == "W") { print \$ 3 " weak" } else { print \$ 3 } } }'\'' | sort -u > $export_symbols' + else + _LT_TAGVAR(export_symbols_cmds, $1)='`func_echo_all $NM | $SED -e '\''s/B\([[^B]]*\)$/P\1/'\''` -PCpgl $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) && ([substr](\$ 1,1,1) != ".")) { if ((\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) { print \$ 1 " weak" } else { print \$ 1 } } }'\'' | sort -u > $export_symbols' + fi + ;; + pw32*) + _LT_TAGVAR(export_symbols_cmds, $1)=$ltdll_cmds + ;; + cygwin* | mingw* | cegcc*) + case $cc_basename in + cl*) + _LT_TAGVAR(exclude_expsyms, $1)='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*' + ;; + *) + _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1 DATA/;s/^.*[[ ]]__nm__\([[^ ]]*\)[[ ]][[^ ]]*/\1 DATA/;/^I[[ ]]/d;/^[[AITW]][[ ]]/s/.* //'\'' | sort | uniq > $export_symbols' + _LT_TAGVAR(exclude_expsyms, $1)=['[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname'] + ;; + esac + ;; + *) + _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols' + ;; + esac +], [ + runpath_var= + _LT_TAGVAR(allow_undefined_flag, $1)= + _LT_TAGVAR(always_export_symbols, $1)=no + _LT_TAGVAR(archive_cmds, $1)= + _LT_TAGVAR(archive_expsym_cmds, $1)= + _LT_TAGVAR(compiler_needs_object, $1)=no + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no + _LT_TAGVAR(export_dynamic_flag_spec, $1)= + _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols' + _LT_TAGVAR(hardcode_automatic, $1)=no + _LT_TAGVAR(hardcode_direct, $1)=no + _LT_TAGVAR(hardcode_direct_absolute, $1)=no + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)= + _LT_TAGVAR(hardcode_libdir_separator, $1)= + _LT_TAGVAR(hardcode_minus_L, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported + _LT_TAGVAR(inherit_rpath, $1)=no + _LT_TAGVAR(link_all_deplibs, $1)=unknown + _LT_TAGVAR(module_cmds, $1)= + _LT_TAGVAR(module_expsym_cmds, $1)= + _LT_TAGVAR(old_archive_from_new_cmds, $1)= + _LT_TAGVAR(old_archive_from_expsyms_cmds, $1)= + _LT_TAGVAR(thread_safe_flag_spec, $1)= + _LT_TAGVAR(whole_archive_flag_spec, $1)= + # include_expsyms should be a list of space-separated symbols to be *always* + # included in the symbol list + _LT_TAGVAR(include_expsyms, $1)= + # exclude_expsyms can be an extended regexp of symbols to exclude + # it will be wrapped by ' (' and ')$', so one must not match beginning or + # end of line. Example: 'a|bc|.*d.*' will exclude the symbols 'a' and 'bc', + # as well as any symbol that contains 'd'. + _LT_TAGVAR(exclude_expsyms, $1)=['_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*'] + # Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out + # platforms (ab)use it in PIC code, but their linkers get confused if + # the symbol is explicitly referenced. Since portable code cannot + # rely on this symbol name, it's probably fine to never include it in + # preloaded symbol tables. + # Exclude shared library initialization/finalization symbols. +dnl Note also adjust exclude_expsyms for C++ above. + extract_expsyms_cmds= + + case $host_os in + cygwin* | mingw* | pw32* | cegcc*) + # FIXME: the MSVC++ port hasn't been tested in a loooong time + # When not using gcc, we currently assume that we are using + # Microsoft Visual C++. + if test yes != "$GCC"; then + with_gnu_ld=no + fi + ;; + interix*) + # we just hope/assume this is gcc and not c89 (= MSVC++) + with_gnu_ld=yes + ;; + openbsd* | bitrig*) + with_gnu_ld=no + ;; + esac + + _LT_TAGVAR(ld_shlibs, $1)=yes + + # On some targets, GNU ld is compatible enough with the native linker + # that we're better off using the native interface for both. + lt_use_gnu_ld_interface=no + if test yes = "$with_gnu_ld"; then + case $host_os in + aix*) + # The AIX port of GNU ld has always aspired to compatibility + # with the native linker. However, as the warning in the GNU ld + # block says, versions before 2.19.5* couldn't really create working + # shared libraries, regardless of the interface used. + case `$LD -v 2>&1` in + *\ \(GNU\ Binutils\)\ 2.19.5*) ;; + *\ \(GNU\ Binutils\)\ 2.[[2-9]]*) ;; + *\ \(GNU\ Binutils\)\ [[3-9]]*) ;; + *) + lt_use_gnu_ld_interface=yes + ;; + esac + ;; + *) + lt_use_gnu_ld_interface=yes + ;; + esac + fi + + if test yes = "$lt_use_gnu_ld_interface"; then + # If archive_cmds runs LD, not CC, wlarc should be empty + wlarc='$wl' + + # Set some defaults for GNU ld with shared library support. These + # are reset later if shared libraries are not supported. Putting them + # here allows them to be overridden if necessary. + runpath_var=LD_RUN_PATH + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic' + # ancient GNU ld didn't support --whole-archive et. al. + if $LD --help 2>&1 | $GREP 'no-whole-archive' > /dev/null; then + _LT_TAGVAR(whole_archive_flag_spec, $1)=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive' + else + _LT_TAGVAR(whole_archive_flag_spec, $1)= + fi + supports_anon_versioning=no + case `$LD -v | $SED -e 's/([^)]\+)\s\+//' 2>&1` in + *GNU\ gold*) supports_anon_versioning=yes ;; + *\ [[01]].* | *\ 2.[[0-9]].* | *\ 2.10.*) ;; # catch versions < 2.11 + *\ 2.11.93.0.2\ *) supports_anon_versioning=yes ;; # RH7.3 ... + *\ 2.11.92.0.12\ *) supports_anon_versioning=yes ;; # Mandrake 8.2 ... + *\ 2.11.*) ;; # other 2.11 versions + *) supports_anon_versioning=yes ;; + esac + + # See if GNU ld supports shared libraries. + case $host_os in + aix[[3-9]]*) + # On AIX/PPC, the GNU linker is very broken + if test ia64 != "$host_cpu"; then + _LT_TAGVAR(ld_shlibs, $1)=no + cat <<_LT_EOF 1>&2 + +*** Warning: the GNU linker, at least up to release 2.19, is reported +*** to be unable to reliably create shared libraries on AIX. +*** Therefore, libtool is disabling shared libraries support. If you +*** really care for shared libraries, you may want to install binutils +*** 2.20 or above, or modify your PATH so that a non-GNU linker is found. +*** You will then need to restart the configuration process. + +_LT_EOF + fi + ;; + + amigaos*) + case $host_cpu in + powerpc) + # see comment about AmigaOS4 .so support + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='' + ;; + m68k) + _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_minus_L, $1)=yes + ;; + esac + ;; + + beos*) + if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + # Joseph Beckenbach says some releases of gcc + # support --undefined. This deserves some investigation. FIXME + _LT_TAGVAR(archive_cmds, $1)='$CC -nostart $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + + cygwin* | mingw* | pw32* | cegcc*) + # _LT_TAGVAR(hardcode_libdir_flag_spec, $1) is actually meaningless, + # as there is no search path for DLLs. + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-all-symbols' + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + _LT_TAGVAR(always_export_symbols, $1)=no + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes + _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1 DATA/;s/^.*[[ ]]__nm__\([[^ ]]*\)[[ ]][[^ ]]*/\1 DATA/;/^I[[ ]]/d;/^[[AITW]][[ ]]/s/.* //'\'' | sort | uniq > $export_symbols' + _LT_TAGVAR(exclude_expsyms, $1)=['[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname'] + + if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib' + # If the export-symbols file already is a .def file, use it as + # is; otherwise, prepend EXPORTS... + _LT_TAGVAR(archive_expsym_cmds, $1)='if _LT_DLL_DEF_P([$export_symbols]); then + cp $export_symbols $output_objdir/$soname.def; + else + echo EXPORTS > $output_objdir/$soname.def; + cat $export_symbols >> $output_objdir/$soname.def; + fi~ + $CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib' + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + + haiku*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(link_all_deplibs, $1)=yes + ;; + + os2*) + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_minus_L, $1)=yes + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + shrext_cmds=.dll + _LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~ + $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~ + $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~ + $ECHO EXPORTS >> $output_objdir/$libname.def~ + emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~ + $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ + emximp -o $lib $output_objdir/$libname.def' + _LT_TAGVAR(archive_expsym_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~ + $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~ + $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~ + $ECHO EXPORTS >> $output_objdir/$libname.def~ + prefix_cmds="$SED"~ + if test EXPORTS = "`$SED 1q $export_symbols`"; then + prefix_cmds="$prefix_cmds -e 1d"; + fi~ + prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~ + cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~ + $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ + emximp -o $lib $output_objdir/$libname.def' + _LT_TAGVAR(old_archive_From_new_cmds, $1)='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def' + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes + ;; + + interix[[3-9]]*) + _LT_TAGVAR(hardcode_direct, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E' + # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc. + # Instead, shared libraries are loaded at an image base (0x10000000 by + # default) and relocated if they conflict, which is a slow very memory + # consuming and fragmenting process. To avoid this, we pick a random, + # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link + # time. Moving up from 0x10000000 also allows more sbrk(2) space. + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='sed "s|^|_|" $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--retain-symbols-file,$output_objdir/$soname.expsym $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib' + ;; + + gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu) + tmp_diet=no + if test linux-dietlibc = "$host_os"; then + case $cc_basename in + diet\ *) tmp_diet=yes;; # linux-dietlibc with static linking (!diet-dyn) + esac + fi + if $LD --help 2>&1 | $EGREP ': supported targets:.* elf' > /dev/null \ + && test no = "$tmp_diet" + then + tmp_addflag=' $pic_flag' + tmp_sharedflag='-shared' + case $cc_basename,$host_cpu in + pgcc*) # Portland Group C compiler + _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive' + tmp_addflag=' $pic_flag' + ;; + pgf77* | pgf90* | pgf95* | pgfortran*) + # Portland Group f77 and f90 compilers + _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive' + tmp_addflag=' $pic_flag -Mnomain' ;; + ecc*,ia64* | icc*,ia64*) # Intel C compiler on ia64 + tmp_addflag=' -i_dynamic' ;; + efc*,ia64* | ifort*,ia64*) # Intel Fortran compiler on ia64 + tmp_addflag=' -i_dynamic -nofor_main' ;; + ifc* | ifort*) # Intel Fortran compiler + tmp_addflag=' -nofor_main' ;; + lf95*) # Lahey Fortran 8.1 + _LT_TAGVAR(whole_archive_flag_spec, $1)= + tmp_sharedflag='--shared' ;; + nagfor*) # NAGFOR 5.3 + tmp_sharedflag='-Wl,-shared' ;; + xl[[cC]]* | bgxl[[cC]]* | mpixl[[cC]]*) # IBM XL C 8.0 on PPC (deal with xlf below) + tmp_sharedflag='-qmkshrobj' + tmp_addflag= ;; + nvcc*) # Cuda Compiler Driver 2.2 + _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive' + _LT_TAGVAR(compiler_needs_object, $1)=yes + ;; + esac + case `$CC -V 2>&1 | sed 5q` in + *Sun\ C*) # Sun C 5.9 + _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive' + _LT_TAGVAR(compiler_needs_object, $1)=yes + tmp_sharedflag='-G' ;; + *Sun\ F*) # Sun Fortran 8.3 + tmp_sharedflag='-G' ;; + esac + _LT_TAGVAR(archive_cmds, $1)='$CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + + if test yes = "$supports_anon_versioning"; then + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~ + cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~ + echo "local: *; };" >> $output_objdir/$libname.ver~ + $CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$output_objdir/$libname.ver -o $lib' + fi + + case $cc_basename in + tcc*) + _LT_TAGVAR(export_dynamic_flag_spec, $1)='-rdynamic' + ;; + xlf* | bgf* | bgxlf* | mpixlf*) + # IBM XL Fortran 10.1 on PPC cannot create shared libs itself + _LT_TAGVAR(whole_archive_flag_spec, $1)='--whole-archive$convenience --no-whole-archive' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + _LT_TAGVAR(archive_cmds, $1)='$LD -shared $libobjs $deplibs $linker_flags -soname $soname -o $lib' + if test yes = "$supports_anon_versioning"; then + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~ + cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~ + echo "local: *; };" >> $output_objdir/$libname.ver~ + $LD -shared $libobjs $deplibs $linker_flags -soname $soname -version-script $output_objdir/$libname.ver -o $lib' + fi + ;; + esac + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + + netbsd*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib' + wlarc= + else + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + fi + ;; + + solaris*) + if $LD -v 2>&1 | $GREP 'BFD 2\.8' > /dev/null; then + _LT_TAGVAR(ld_shlibs, $1)=no + cat <<_LT_EOF 1>&2 + +*** Warning: The releases 2.8.* of the GNU linker cannot reliably +*** create shared libraries on Solaris systems. Therefore, libtool +*** is disabling shared libraries support. We urge you to upgrade GNU +*** binutils to release 2.9.1 or newer. Another option is to modify +*** your PATH or compiler configuration so that the native linker is +*** used, and then restart. + +_LT_EOF + elif $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + + sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*) + case `$LD -v 2>&1` in + *\ [[01]].* | *\ 2.[[0-9]].* | *\ 2.1[[0-5]].*) + _LT_TAGVAR(ld_shlibs, $1)=no + cat <<_LT_EOF 1>&2 + +*** Warning: Releases of the GNU linker prior to 2.16.91.0.3 cannot +*** reliably create shared libraries on SCO systems. Therefore, libtool +*** is disabling shared libraries support. We urge you to upgrade GNU +*** binutils to release 2.16.91.0.3 or newer. Another option is to modify +*** your PATH or compiler configuration so that the native linker is +*** used, and then restart. + +_LT_EOF + ;; + *) + # For security reasons, it is highly recommended that you always + # use absolute paths for naming shared libraries, and exclude the + # DT_RUNPATH tag from executables and libraries. But doing so + # requires that you compile everything twice, which is a pain. + if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + esac + ;; + + sunos4*) + _LT_TAGVAR(archive_cmds, $1)='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags' + wlarc= + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + *) + if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + esac + + if test no = "$_LT_TAGVAR(ld_shlibs, $1)"; then + runpath_var= + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)= + _LT_TAGVAR(export_dynamic_flag_spec, $1)= + _LT_TAGVAR(whole_archive_flag_spec, $1)= + fi + else + # PORTME fill in a description of your system's linker (not GNU ld) + case $host_os in + aix3*) + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + _LT_TAGVAR(always_export_symbols, $1)=yes + _LT_TAGVAR(archive_expsym_cmds, $1)='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname' + # Note: this linker hardcodes the directories in LIBPATH if there + # are no directories specified by -L. + _LT_TAGVAR(hardcode_minus_L, $1)=yes + if test yes = "$GCC" && test -z "$lt_prog_compiler_static"; then + # Neither direct hardcoding nor static linking is supported with a + # broken collect2. + _LT_TAGVAR(hardcode_direct, $1)=unsupported + fi + ;; + + aix[[4-9]]*) + if test ia64 = "$host_cpu"; then + # On IA64, the linker does run time linking by default, so we don't + # have to do anything special. + aix_use_runtimelinking=no + exp_sym_flag='-Bexport' + no_entry_flag= + else + # If we're using GNU nm, then we don't want the "-C" option. + # -C means demangle to GNU nm, but means don't demangle to AIX nm. + # Without the "-l" option, or with the "-B" option, AIX nm treats + # weak defined symbols like other global defined symbols, whereas + # GNU nm marks them as "W". + # While the 'weak' keyword is ignored in the Export File, we need + # it in the Import File for the 'aix-soname' feature, so we have + # to replace the "-B" option with "-P" for AIX nm. + if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then + _LT_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && ([substr](\$ 3,1,1) != ".")) { if (\$ 2 == "W") { print \$ 3 " weak" } else { print \$ 3 } } }'\'' | sort -u > $export_symbols' + else + _LT_TAGVAR(export_symbols_cmds, $1)='`func_echo_all $NM | $SED -e '\''s/B\([[^B]]*\)$/P\1/'\''` -PCpgl $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) && ([substr](\$ 1,1,1) != ".")) { if ((\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) { print \$ 1 " weak" } else { print \$ 1 } } }'\'' | sort -u > $export_symbols' + fi + aix_use_runtimelinking=no + + # Test if we are trying to use run time linking or normal + # AIX style linking. If -brtl is somewhere in LDFLAGS, we + # have runtime linking enabled, and use it for executables. + # For shared libraries, we enable/disable runtime linking + # depending on the kind of the shared library created - + # when "with_aix_soname,aix_use_runtimelinking" is: + # "aix,no" lib.a(lib.so.V) shared, rtl:no, for executables + # "aix,yes" lib.so shared, rtl:yes, for executables + # lib.a static archive + # "both,no" lib.so.V(shr.o) shared, rtl:yes + # lib.a(lib.so.V) shared, rtl:no, for executables + # "both,yes" lib.so.V(shr.o) shared, rtl:yes, for executables + # lib.a(lib.so.V) shared, rtl:no + # "svr4,*" lib.so.V(shr.o) shared, rtl:yes, for executables + # lib.a static archive + case $host_os in aix4.[[23]]|aix4.[[23]].*|aix[[5-9]]*) + for ld_flag in $LDFLAGS; do + if (test x-brtl = "x$ld_flag" || test x-Wl,-brtl = "x$ld_flag"); then + aix_use_runtimelinking=yes + break + fi + done + if test svr4,no = "$with_aix_soname,$aix_use_runtimelinking"; then + # With aix-soname=svr4, we create the lib.so.V shared archives only, + # so we don't have lib.a shared libs to link our executables. + # We have to force runtime linking in this case. + aix_use_runtimelinking=yes + LDFLAGS="$LDFLAGS -Wl,-brtl" + fi + ;; + esac + + exp_sym_flag='-bexport' + no_entry_flag='-bnoentry' + fi + + # When large executables or shared objects are built, AIX ld can + # have problems creating the table of contents. If linking a library + # or program results in "error TOC overflow" add -mminimal-toc to + # CXXFLAGS/CFLAGS for g++/gcc. In the cases where that is not + # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS. + + _LT_TAGVAR(archive_cmds, $1)='' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_direct_absolute, $1)=yes + _LT_TAGVAR(hardcode_libdir_separator, $1)=':' + _LT_TAGVAR(link_all_deplibs, $1)=yes + _LT_TAGVAR(file_list_spec, $1)='$wl-f,' + case $with_aix_soname,$aix_use_runtimelinking in + aix,*) ;; # traditional, no import file + svr4,* | *,yes) # use import file + # The Import File defines what to hardcode. + _LT_TAGVAR(hardcode_direct, $1)=no + _LT_TAGVAR(hardcode_direct_absolute, $1)=no + ;; + esac + + if test yes = "$GCC"; then + case $host_os in aix4.[[012]]|aix4.[[012]].*) + # We only want to do this on AIX 4.2 and lower, the check + # below for broken collect2 doesn't work under 4.3+ + collect2name=`$CC -print-prog-name=collect2` + if test -f "$collect2name" && + strings "$collect2name" | $GREP resolve_lib_name >/dev/null + then + # We have reworked collect2 + : + else + # We have old collect2 + _LT_TAGVAR(hardcode_direct, $1)=unsupported + # It fails to find uninstalled libraries when the uninstalled + # path is not listed in the libpath. Setting hardcode_minus_L + # to unsupported forces relinking + _LT_TAGVAR(hardcode_minus_L, $1)=yes + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)= + fi + ;; + esac + shared_flag='-shared' + if test yes = "$aix_use_runtimelinking"; then + shared_flag="$shared_flag "'$wl-G' + fi + # Need to ensure runtime linking is disabled for the traditional + # shared library, or the linker may eventually find shared libraries + # /with/ Import File - we do not want to mix them. + shared_flag_aix='-shared' + shared_flag_svr4='-shared $wl-G' + else + # not using gcc + if test ia64 = "$host_cpu"; then + # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release + # chokes on -Wl,-G. The following line is correct: + shared_flag='-G' + else + if test yes = "$aix_use_runtimelinking"; then + shared_flag='$wl-G' + else + shared_flag='$wl-bM:SRE' + fi + shared_flag_aix='$wl-bM:SRE' + shared_flag_svr4='$wl-G' + fi + fi + + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-bexpall' + # It seems that -bexpall does not export symbols beginning with + # underscore (_), so it is better to generate a list of symbols to export. + _LT_TAGVAR(always_export_symbols, $1)=yes + if test aix,yes = "$with_aix_soname,$aix_use_runtimelinking"; then + # Warning - without using the other runtime loading flags (-brtl), + # -berok will link without error, but may produce a broken library. + _LT_TAGVAR(allow_undefined_flag, $1)='-berok' + # Determine the default libpath from the value encoded in an + # empty executable. + _LT_SYS_MODULE_PATH_AIX([$1]) + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath" + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $deplibs $wl'$no_entry_flag' $compiler_flags `if test -n "$allow_undefined_flag"; then func_echo_all "$wl$allow_undefined_flag"; else :; fi` $wl'$exp_sym_flag:\$export_symbols' '$shared_flag + else + if test ia64 = "$host_cpu"; then + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R $libdir:/usr/lib:/lib' + _LT_TAGVAR(allow_undefined_flag, $1)="-z nodefs" + _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\$wl$no_entry_flag"' $compiler_flags $wl$allow_undefined_flag '"\$wl$exp_sym_flag:\$export_symbols" + else + # Determine the default libpath from the value encoded in an + # empty executable. + _LT_SYS_MODULE_PATH_AIX([$1]) + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath" + # Warning - without using the other run time loading flags, + # -berok will link without error, but may produce a broken library. + _LT_TAGVAR(no_undefined_flag, $1)=' $wl-bernotok' + _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-berok' + if test yes = "$with_gnu_ld"; then + # We only use this code for GNU lds that support --whole-archive. + _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive$convenience $wl--no-whole-archive' + else + # Exported symbols can be pulled into shared objects from archives + _LT_TAGVAR(whole_archive_flag_spec, $1)='$convenience' + fi + _LT_TAGVAR(archive_cmds_need_lc, $1)=yes + _LT_TAGVAR(archive_expsym_cmds, $1)='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d' + # -brtl affects multiple linker settings, -berok does not and is overridden later + compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([[, ]]\\)%-berok\\1%g"`' + if test svr4 != "$with_aix_soname"; then + # This is similar to how AIX traditionally builds its shared libraries. + _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname' + fi + if test aix != "$with_aix_soname"; then + _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! $soname($shared_archive_member_spec.o)"; if test shr_64 = "$shared_archive_member_spec"; then func_echo_all "# 64"; else func_echo_all "# 32"; fi; cat $export_symbols ) > $output_objdir/$realname.d/$shared_archive_member_spec.imp~$AR $AR_FLAGS $output_objdir/$soname $output_objdir/$realname.d/$shared_archive_member_spec.o $output_objdir/$realname.d/$shared_archive_member_spec.imp' + else + # used by -dlpreopen to get the symbols + _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$MV $output_objdir/$realname.d/$soname $output_objdir' + fi + _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$RM -r $output_objdir/$realname.d' + fi + fi + ;; + + amigaos*) + case $host_cpu in + powerpc) + # see comment about AmigaOS4 .so support + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='' + ;; + m68k) + _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_minus_L, $1)=yes + ;; + esac + ;; + + bsdi[[45]]*) + _LT_TAGVAR(export_dynamic_flag_spec, $1)=-rdynamic + ;; + + cygwin* | mingw* | pw32* | cegcc*) + # When not using gcc, we currently assume that we are using + # Microsoft Visual C++. + # hardcode_libdir_flag_spec is actually meaningless, as there is + # no search path for DLLs. + case $cc_basename in + cl*) + # Native MSVC + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' ' + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + _LT_TAGVAR(always_export_symbols, $1)=yes + _LT_TAGVAR(file_list_spec, $1)='@' + # Tell ltmain to make .lib files, not .a files. + libext=lib + # Tell ltmain to make .dll files, not .so files. + shrext_cmds=.dll + # FIXME: Setting linknames here is a bad hack. + _LT_TAGVAR(archive_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames=' + _LT_TAGVAR(archive_expsym_cmds, $1)='if _LT_DLL_DEF_P([$export_symbols]); then + cp "$export_symbols" "$output_objdir/$soname.def"; + echo "$tool_output_objdir$soname.def" > "$output_objdir/$soname.exp"; + else + $SED -e '\''s/^/-link -EXPORT:/'\'' < $export_symbols > $output_objdir/$soname.exp; + fi~ + $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~ + linknames=' + # The linker will not automatically build a static lib if we build a DLL. + # _LT_TAGVAR(old_archive_from_new_cmds, $1)='true' + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes + _LT_TAGVAR(exclude_expsyms, $1)='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*' + _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1,DATA/'\'' | $SED -e '\''/^[[AITW]][[ ]]/s/.*[[ ]]//'\'' | sort | uniq > $export_symbols' + # Don't use ranlib + _LT_TAGVAR(old_postinstall_cmds, $1)='chmod 644 $oldlib' + _LT_TAGVAR(postlink_cmds, $1)='lt_outputfile="@OUTPUT@"~ + lt_tool_outputfile="@TOOL_OUTPUT@"~ + case $lt_outputfile in + *.exe|*.EXE) ;; + *) + lt_outputfile=$lt_outputfile.exe + lt_tool_outputfile=$lt_tool_outputfile.exe + ;; + esac~ + if test : != "$MANIFEST_TOOL" && test -f "$lt_outputfile.manifest"; then + $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1; + $RM "$lt_outputfile.manifest"; + fi' + ;; + *) + # Assume MSVC wrapper + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' ' + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + # Tell ltmain to make .lib files, not .a files. + libext=lib + # Tell ltmain to make .dll files, not .so files. + shrext_cmds=.dll + # FIXME: Setting linknames here is a bad hack. + _LT_TAGVAR(archive_cmds, $1)='$CC -o $lib $libobjs $compiler_flags `func_echo_all "$deplibs" | $SED '\''s/ -lc$//'\''` -link -dll~linknames=' + # The linker will automatically build a .lib file if we build a DLL. + _LT_TAGVAR(old_archive_from_new_cmds, $1)='true' + # FIXME: Should let the user specify the lib program. + _LT_TAGVAR(old_archive_cmds, $1)='lib -OUT:$oldlib$oldobjs$old_deplibs' + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes + ;; + esac + ;; + + darwin* | rhapsody*) + _LT_DARWIN_LINKER_FEATURES($1) + ;; + + dgux*) + _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor + # support. Future versions do this automatically, but an explicit c++rt0.o + # does not break anything, and helps significantly (at the cost of a little + # extra space). + freebsd2.2*) + _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + # Unfortunately, older versions of FreeBSD 2 do not have this feature. + freebsd2.*) + _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_minus_L, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + # FreeBSD 3 and greater uses gcc -shared to do shared libraries. + freebsd* | dragonfly*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + hpux9*) + if test yes = "$GCC"; then + _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -shared $pic_flag $wl+b $wl$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib' + else + _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib' + fi + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + _LT_TAGVAR(hardcode_direct, $1)=yes + + # hardcode_minus_L: Not really in the search PATH, + # but as the default location of the library. + _LT_TAGVAR(hardcode_minus_L, $1)=yes + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E' + ;; + + hpux10*) + if test yes,no = "$GCC,$with_gnu_ld"; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags' + else + _LT_TAGVAR(archive_cmds, $1)='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags' + fi + if test no = "$with_gnu_ld"; then + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_direct_absolute, $1)=yes + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E' + # hardcode_minus_L: Not really in the search PATH, + # but as the default location of the library. + _LT_TAGVAR(hardcode_minus_L, $1)=yes + fi + ;; + + hpux11*) + if test yes,no = "$GCC,$with_gnu_ld"; then + case $host_cpu in + hppa*64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl+h $wl$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + ia64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl+h $wl$soname $wl+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags' + ;; + *) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags' + ;; + esac + else + case $host_cpu in + hppa*64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + ia64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags' + ;; + *) + m4_if($1, [], [ + # Older versions of the 11.00 compiler do not understand -b yet + # (HP92453-01 A.11.01.20 doesn't, HP92453-01 B.11.X.35175-35176.GP does) + _LT_LINKER_OPTION([if $CC understands -b], + _LT_TAGVAR(lt_cv_prog_compiler__b, $1), [-b], + [_LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'], + [_LT_TAGVAR(archive_cmds, $1)='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'])], + [_LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags']) + ;; + esac + fi + if test no = "$with_gnu_ld"; then + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + + case $host_cpu in + hppa*64*|ia64*) + _LT_TAGVAR(hardcode_direct, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + *) + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_direct_absolute, $1)=yes + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E' + + # hardcode_minus_L: Not really in the search PATH, + # but as the default location of the library. + _LT_TAGVAR(hardcode_minus_L, $1)=yes + ;; + esac + fi + ;; + + irix5* | irix6* | nonstopux*) + if test yes = "$GCC"; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib' + # Try to use the -exported_symbol ld option, if it does not + # work, assume that -exports_file does not work either and + # implicitly export all symbols. + # This should be the same for all languages, so no per-tag cache variable. + AC_CACHE_CHECK([whether the $host_os linker accepts -exported_symbol], + [lt_cv_irix_exported_symbol], + [save_LDFLAGS=$LDFLAGS + LDFLAGS="$LDFLAGS -shared $wl-exported_symbol ${wl}foo $wl-update_registry $wl/dev/null" + AC_LINK_IFELSE( + [AC_LANG_SOURCE( + [AC_LANG_CASE([C], [[int foo (void) { return 0; }]], + [C++], [[int foo (void) { return 0; }]], + [Fortran 77], [[ + subroutine foo + end]], + [Fortran], [[ + subroutine foo + end]])])], + [lt_cv_irix_exported_symbol=yes], + [lt_cv_irix_exported_symbol=no]) + LDFLAGS=$save_LDFLAGS]) + if test yes = "$lt_cv_irix_exported_symbol"; then + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations $wl-exports_file $wl$export_symbols -o $lib' + fi + else + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -exports_file $export_symbols -o $lib' + fi + _LT_TAGVAR(archive_cmds_need_lc, $1)='no' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + _LT_TAGVAR(inherit_rpath, $1)=yes + _LT_TAGVAR(link_all_deplibs, $1)=yes + ;; + + linux*) + case $cc_basename in + tcc*) + # Fabrice Bellard et al's Tiny C Compiler + _LT_TAGVAR(ld_shlibs, $1)=yes + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' + ;; + esac + ;; + + netbsd*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' # a.out + else + _LT_TAGVAR(archive_cmds, $1)='$LD -shared -o $lib $libobjs $deplibs $linker_flags' # ELF + fi + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + newsos6) + _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + *nto* | *qnx*) + ;; + + openbsd* | bitrig*) + if test -f /usr/libexec/ld.so; then + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + _LT_TAGVAR(hardcode_direct_absolute, $1)=yes + if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags $wl-retain-symbols-file,$export_symbols' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E' + else + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir' + fi + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + + os2*) + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_minus_L, $1)=yes + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + shrext_cmds=.dll + _LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~ + $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~ + $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~ + $ECHO EXPORTS >> $output_objdir/$libname.def~ + emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~ + $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ + emximp -o $lib $output_objdir/$libname.def' + _LT_TAGVAR(archive_expsym_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~ + $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~ + $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~ + $ECHO EXPORTS >> $output_objdir/$libname.def~ + prefix_cmds="$SED"~ + if test EXPORTS = "`$SED 1q $export_symbols`"; then + prefix_cmds="$prefix_cmds -e 1d"; + fi~ + prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~ + cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~ + $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ + emximp -o $lib $output_objdir/$libname.def' + _LT_TAGVAR(old_archive_From_new_cmds, $1)='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def' + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes + ;; + + osf3*) + if test yes = "$GCC"; then + _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib' + else + _LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' + fi + _LT_TAGVAR(archive_cmds_need_lc, $1)='no' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + ;; + + osf4* | osf5*) # as osf3* with the addition of -msym flag + if test yes = "$GCC"; then + _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $pic_flag $libobjs $deplibs $compiler_flags $wl-msym $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + else + _LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; printf "%s\\n" "-hidden">> $lib.exp~ + $CC -shared$allow_undefined_flag $wl-input $wl$lib.exp $compiler_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib~$RM $lib.exp' + + # Both c and cxx compiler support -rpath directly + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir' + fi + _LT_TAGVAR(archive_cmds_need_lc, $1)='no' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + ;; + + solaris*) + _LT_TAGVAR(no_undefined_flag, $1)=' -z defs' + if test yes = "$GCC"; then + wlarc='$wl' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl-z ${wl}text $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -shared $pic_flag $wl-z ${wl}text $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp' + else + case `$CC -V 2>&1` in + *"Compilers 5.0"*) + wlarc='' + _LT_TAGVAR(archive_cmds, $1)='$LD -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $LD -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp' + ;; + *) + wlarc='$wl' + _LT_TAGVAR(archive_cmds, $1)='$CC -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp' + ;; + esac + fi + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + case $host_os in + solaris2.[[0-5]] | solaris2.[[0-5]].*) ;; + *) + # The compiler driver will combine and reorder linker options, + # but understands '-z linker_flag'. GCC discards it without '$wl', + # but is careful enough not to reorder. + # Supported since Solaris 2.6 (maybe 2.5.1?) + if test yes = "$GCC"; then + _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl-z ${wl}allextract$convenience $wl-z ${wl}defaultextract' + else + _LT_TAGVAR(whole_archive_flag_spec, $1)='-z allextract$convenience -z defaultextract' + fi + ;; + esac + _LT_TAGVAR(link_all_deplibs, $1)=yes + ;; + + sunos4*) + if test sequent = "$host_vendor"; then + # Use $CC to link under sequent, because it throws in some extra .o + # files that make .init and .fini sections work. + _LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h $soname -o $lib $libobjs $deplibs $compiler_flags' + else + _LT_TAGVAR(archive_cmds, $1)='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags' + fi + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_minus_L, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + sysv4) + case $host_vendor in + sni) + _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_direct, $1)=yes # is this really true??? + ;; + siemens) + ## LD is ld it makes a PLAMLIB + ## CC just makes a GrossModule. + _LT_TAGVAR(archive_cmds, $1)='$LD -G -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(reload_cmds, $1)='$CC -r -o $output$reload_objs' + _LT_TAGVAR(hardcode_direct, $1)=no + ;; + motorola) + _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_direct, $1)=no #Motorola manual says yes, but my tests say they lie + ;; + esac + runpath_var='LD_RUN_PATH' + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + sysv4.3*) + _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + _LT_TAGVAR(export_dynamic_flag_spec, $1)='-Bexport' + ;; + + sysv4*MP*) + if test -d /usr/nec; then + _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + runpath_var=LD_RUN_PATH + hardcode_runpath_var=yes + _LT_TAGVAR(ld_shlibs, $1)=yes + fi + ;; + + sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[[01]].[[10]]* | unixware7* | sco3.2v5.0.[[024]]*) + _LT_TAGVAR(no_undefined_flag, $1)='$wl-z,text' + _LT_TAGVAR(archive_cmds_need_lc, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + runpath_var='LD_RUN_PATH' + + if test yes = "$GCC"; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + else + _LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + fi + ;; + + sysv5* | sco3.2v5* | sco5v6*) + # Note: We CANNOT use -z defs as we might desire, because we do not + # link with -lc, and that would cause any symbols used from libc to + # always be unresolved, which means just about no library would + # ever link correctly. If we're not using GNU ld we use -z text + # though, which does catch some bad symbols but isn't as heavy-handed + # as -z defs. + _LT_TAGVAR(no_undefined_flag, $1)='$wl-z,text' + _LT_TAGVAR(allow_undefined_flag, $1)='$wl-z,nodefs' + _LT_TAGVAR(archive_cmds_need_lc, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R,$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=':' + _LT_TAGVAR(link_all_deplibs, $1)=yes + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-Bexport' + runpath_var='LD_RUN_PATH' + + if test yes = "$GCC"; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + else + _LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + fi + ;; + + uts4*) + _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + *) + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + esac + + if test sni = "$host_vendor"; then + case $host in + sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*) + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-Blargedynsym' + ;; + esac + fi + fi +]) +AC_MSG_RESULT([$_LT_TAGVAR(ld_shlibs, $1)]) +test no = "$_LT_TAGVAR(ld_shlibs, $1)" && can_build_shared=no + +_LT_TAGVAR(with_gnu_ld, $1)=$with_gnu_ld + +_LT_DECL([], [libext], [0], [Old archive suffix (normally "a")])dnl +_LT_DECL([], [shrext_cmds], [1], [Shared library suffix (normally ".so")])dnl +_LT_DECL([], [extract_expsyms_cmds], [2], + [The commands to extract the exported symbol list from a shared archive]) + +# +# Do we need to explicitly link libc? +# +case "x$_LT_TAGVAR(archive_cmds_need_lc, $1)" in +x|xyes) + # Assume -lc should be added + _LT_TAGVAR(archive_cmds_need_lc, $1)=yes + + if test yes,yes = "$GCC,$enable_shared"; then + case $_LT_TAGVAR(archive_cmds, $1) in + *'~'*) + # FIXME: we may have to deal with multi-command sequences. + ;; + '$CC '*) + # Test whether the compiler implicitly links with -lc since on some + # systems, -lgcc has to come before -lc. If gcc already passes -lc + # to ld, don't add -lc before -lgcc. + AC_CACHE_CHECK([whether -lc should be explicitly linked in], + [lt_cv_]_LT_TAGVAR(archive_cmds_need_lc, $1), + [$RM conftest* + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + + if AC_TRY_EVAL(ac_compile) 2>conftest.err; then + soname=conftest + lib=conftest + libobjs=conftest.$ac_objext + deplibs= + wl=$_LT_TAGVAR(lt_prog_compiler_wl, $1) + pic_flag=$_LT_TAGVAR(lt_prog_compiler_pic, $1) + compiler_flags=-v + linker_flags=-v + verstring= + output_objdir=. + libname=conftest + lt_save_allow_undefined_flag=$_LT_TAGVAR(allow_undefined_flag, $1) + _LT_TAGVAR(allow_undefined_flag, $1)= + if AC_TRY_EVAL(_LT_TAGVAR(archive_cmds, $1) 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1) + then + lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1)=no + else + lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1)=yes + fi + _LT_TAGVAR(allow_undefined_flag, $1)=$lt_save_allow_undefined_flag + else + cat conftest.err 1>&5 + fi + $RM conftest* + ]) + _LT_TAGVAR(archive_cmds_need_lc, $1)=$lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1) + ;; + esac + fi + ;; +esac + +_LT_TAGDECL([build_libtool_need_lc], [archive_cmds_need_lc], [0], + [Whether or not to add -lc for building shared libraries]) +_LT_TAGDECL([allow_libtool_libs_with_static_runtimes], + [enable_shared_with_static_runtimes], [0], + [Whether or not to disallow shared libs when runtime libs are static]) +_LT_TAGDECL([], [export_dynamic_flag_spec], [1], + [Compiler flag to allow reflexive dlopens]) +_LT_TAGDECL([], [whole_archive_flag_spec], [1], + [Compiler flag to generate shared objects directly from archives]) +_LT_TAGDECL([], [compiler_needs_object], [1], + [Whether the compiler copes with passing no objects directly]) +_LT_TAGDECL([], [old_archive_from_new_cmds], [2], + [Create an old-style archive from a shared archive]) +_LT_TAGDECL([], [old_archive_from_expsyms_cmds], [2], + [Create a temporary old-style archive to link instead of a shared archive]) +_LT_TAGDECL([], [archive_cmds], [2], [Commands used to build a shared archive]) +_LT_TAGDECL([], [archive_expsym_cmds], [2]) +_LT_TAGDECL([], [module_cmds], [2], + [Commands used to build a loadable module if different from building + a shared archive.]) +_LT_TAGDECL([], [module_expsym_cmds], [2]) +_LT_TAGDECL([], [with_gnu_ld], [1], + [Whether we are building with GNU ld or not]) +_LT_TAGDECL([], [allow_undefined_flag], [1], + [Flag that allows shared libraries with undefined symbols to be built]) +_LT_TAGDECL([], [no_undefined_flag], [1], + [Flag that enforces no undefined symbols]) +_LT_TAGDECL([], [hardcode_libdir_flag_spec], [1], + [Flag to hardcode $libdir into a binary during linking. + This must work even if $libdir does not exist]) +_LT_TAGDECL([], [hardcode_libdir_separator], [1], + [Whether we need a single "-rpath" flag with a separated argument]) +_LT_TAGDECL([], [hardcode_direct], [0], + [Set to "yes" if using DIR/libNAME$shared_ext during linking hardcodes + DIR into the resulting binary]) +_LT_TAGDECL([], [hardcode_direct_absolute], [0], + [Set to "yes" if using DIR/libNAME$shared_ext during linking hardcodes + DIR into the resulting binary and the resulting library dependency is + "absolute", i.e impossible to change by setting $shlibpath_var if the + library is relocated]) +_LT_TAGDECL([], [hardcode_minus_L], [0], + [Set to "yes" if using the -LDIR flag during linking hardcodes DIR + into the resulting binary]) +_LT_TAGDECL([], [hardcode_shlibpath_var], [0], + [Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR + into the resulting binary]) +_LT_TAGDECL([], [hardcode_automatic], [0], + [Set to "yes" if building a shared library automatically hardcodes DIR + into the library and all subsequent libraries and executables linked + against it]) +_LT_TAGDECL([], [inherit_rpath], [0], + [Set to yes if linker adds runtime paths of dependent libraries + to runtime path list]) +_LT_TAGDECL([], [link_all_deplibs], [0], + [Whether libtool must link a program against all its dependency libraries]) +_LT_TAGDECL([], [always_export_symbols], [0], + [Set to "yes" if exported symbols are required]) +_LT_TAGDECL([], [export_symbols_cmds], [2], + [The commands to list exported symbols]) +_LT_TAGDECL([], [exclude_expsyms], [1], + [Symbols that should not be listed in the preloaded symbols]) +_LT_TAGDECL([], [include_expsyms], [1], + [Symbols that must always be exported]) +_LT_TAGDECL([], [prelink_cmds], [2], + [Commands necessary for linking programs (against libraries) with templates]) +_LT_TAGDECL([], [postlink_cmds], [2], + [Commands necessary for finishing linking programs]) +_LT_TAGDECL([], [file_list_spec], [1], + [Specify filename containing input files]) +dnl FIXME: Not yet implemented +dnl _LT_TAGDECL([], [thread_safe_flag_spec], [1], +dnl [Compiler flag to generate thread safe objects]) +])# _LT_LINKER_SHLIBS + + +# _LT_LANG_C_CONFIG([TAG]) +# ------------------------ +# Ensure that the configuration variables for a C compiler are suitably +# defined. These variables are subsequently used by _LT_CONFIG to write +# the compiler configuration to 'libtool'. +m4_defun([_LT_LANG_C_CONFIG], +[m4_require([_LT_DECL_EGREP])dnl +lt_save_CC=$CC +AC_LANG_PUSH(C) + +# Source file extension for C test sources. +ac_ext=c + +# Object file extension for compiled C test sources. +objext=o +_LT_TAGVAR(objext, $1)=$objext + +# Code to be used in simple compile tests +lt_simple_compile_test_code="int some_variable = 0;" + +# Code to be used in simple link tests +lt_simple_link_test_code='int main(){return(0);}' + +_LT_TAG_COMPILER +# Save the default compiler, since it gets overwritten when the other +# tags are being tested, and _LT_TAGVAR(compiler, []) is a NOP. +compiler_DEFAULT=$CC + +# save warnings/boilerplate of simple test code +_LT_COMPILER_BOILERPLATE +_LT_LINKER_BOILERPLATE + +## CAVEAT EMPTOR: +## There is no encapsulation within the following macros, do not change +## the running order or otherwise move them around unless you know exactly +## what you are doing... +if test -n "$compiler"; then + _LT_COMPILER_NO_RTTI($1) + _LT_COMPILER_PIC($1) + _LT_COMPILER_C_O($1) + _LT_COMPILER_FILE_LOCKS($1) + _LT_LINKER_SHLIBS($1) + _LT_SYS_DYNAMIC_LINKER($1) + _LT_LINKER_HARDCODE_LIBPATH($1) + LT_SYS_DLOPEN_SELF + _LT_CMD_STRIPLIB + + # Report what library types will actually be built + AC_MSG_CHECKING([if libtool supports shared libraries]) + AC_MSG_RESULT([$can_build_shared]) + + AC_MSG_CHECKING([whether to build shared libraries]) + test no = "$can_build_shared" && enable_shared=no + + # On AIX, shared libraries and static libraries use the same namespace, and + # are all built from PIC. + case $host_os in + aix3*) + test yes = "$enable_shared" && enable_static=no + if test -n "$RANLIB"; then + archive_cmds="$archive_cmds~\$RANLIB \$lib" + postinstall_cmds='$RANLIB $lib' + fi + ;; + + aix[[4-9]]*) + if test ia64 != "$host_cpu"; then + case $enable_shared,$with_aix_soname,$aix_use_runtimelinking in + yes,aix,yes) ;; # shared object as lib.so file only + yes,svr4,*) ;; # shared object as lib.so archive member only + yes,*) enable_static=no ;; # shared object in lib.a archive as well + esac + fi + ;; + esac + AC_MSG_RESULT([$enable_shared]) + + AC_MSG_CHECKING([whether to build static libraries]) + # Make sure either enable_shared or enable_static is yes. + test yes = "$enable_shared" || enable_static=yes + AC_MSG_RESULT([$enable_static]) + + _LT_CONFIG($1) +fi +AC_LANG_POP +CC=$lt_save_CC +])# _LT_LANG_C_CONFIG + + +# _LT_LANG_CXX_CONFIG([TAG]) +# -------------------------- +# Ensure that the configuration variables for a C++ compiler are suitably +# defined. These variables are subsequently used by _LT_CONFIG to write +# the compiler configuration to 'libtool'. +m4_defun([_LT_LANG_CXX_CONFIG], +[m4_require([_LT_FILEUTILS_DEFAULTS])dnl +m4_require([_LT_DECL_EGREP])dnl +m4_require([_LT_PATH_MANIFEST_TOOL])dnl +if test -n "$CXX" && ( test no != "$CXX" && + ( (test g++ = "$CXX" && `g++ -v >/dev/null 2>&1` ) || + (test g++ != "$CXX"))); then + AC_PROG_CXXCPP +else + _lt_caught_CXX_error=yes +fi + +AC_LANG_PUSH(C++) +_LT_TAGVAR(archive_cmds_need_lc, $1)=no +_LT_TAGVAR(allow_undefined_flag, $1)= +_LT_TAGVAR(always_export_symbols, $1)=no +_LT_TAGVAR(archive_expsym_cmds, $1)= +_LT_TAGVAR(compiler_needs_object, $1)=no +_LT_TAGVAR(export_dynamic_flag_spec, $1)= +_LT_TAGVAR(hardcode_direct, $1)=no +_LT_TAGVAR(hardcode_direct_absolute, $1)=no +_LT_TAGVAR(hardcode_libdir_flag_spec, $1)= +_LT_TAGVAR(hardcode_libdir_separator, $1)= +_LT_TAGVAR(hardcode_minus_L, $1)=no +_LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported +_LT_TAGVAR(hardcode_automatic, $1)=no +_LT_TAGVAR(inherit_rpath, $1)=no +_LT_TAGVAR(module_cmds, $1)= +_LT_TAGVAR(module_expsym_cmds, $1)= +_LT_TAGVAR(link_all_deplibs, $1)=unknown +_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds +_LT_TAGVAR(reload_flag, $1)=$reload_flag +_LT_TAGVAR(reload_cmds, $1)=$reload_cmds +_LT_TAGVAR(no_undefined_flag, $1)= +_LT_TAGVAR(whole_archive_flag_spec, $1)= +_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no + +# Source file extension for C++ test sources. +ac_ext=cpp + +# Object file extension for compiled C++ test sources. +objext=o +_LT_TAGVAR(objext, $1)=$objext + +# No sense in running all these tests if we already determined that +# the CXX compiler isn't working. Some variables (like enable_shared) +# are currently assumed to apply to all compilers on this platform, +# and will be corrupted by setting them based on a non-working compiler. +if test yes != "$_lt_caught_CXX_error"; then + # Code to be used in simple compile tests + lt_simple_compile_test_code="int some_variable = 0;" + + # Code to be used in simple link tests + lt_simple_link_test_code='int main(int, char *[[]]) { return(0); }' + + # ltmain only uses $CC for tagged configurations so make sure $CC is set. + _LT_TAG_COMPILER + + # save warnings/boilerplate of simple test code + _LT_COMPILER_BOILERPLATE + _LT_LINKER_BOILERPLATE + + # Allow CC to be a program name with arguments. + lt_save_CC=$CC + lt_save_CFLAGS=$CFLAGS + lt_save_LD=$LD + lt_save_GCC=$GCC + GCC=$GXX + lt_save_with_gnu_ld=$with_gnu_ld + lt_save_path_LD=$lt_cv_path_LD + if test -n "${lt_cv_prog_gnu_ldcxx+set}"; then + lt_cv_prog_gnu_ld=$lt_cv_prog_gnu_ldcxx + else + $as_unset lt_cv_prog_gnu_ld + fi + if test -n "${lt_cv_path_LDCXX+set}"; then + lt_cv_path_LD=$lt_cv_path_LDCXX + else + $as_unset lt_cv_path_LD + fi + test -z "${LDCXX+set}" || LD=$LDCXX + CC=${CXX-"c++"} + CFLAGS=$CXXFLAGS + compiler=$CC + _LT_TAGVAR(compiler, $1)=$CC + _LT_CC_BASENAME([$compiler]) + + if test -n "$compiler"; then + # We don't want -fno-exception when compiling C++ code, so set the + # no_builtin_flag separately + if test yes = "$GXX"; then + _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin' + else + _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)= + fi + + if test yes = "$GXX"; then + # Set up default GNU C++ configuration + + LT_PATH_LD + + # Check if GNU C++ uses GNU ld as the underlying linker, since the + # archiving commands below assume that GNU ld is being used. + if test yes = "$with_gnu_ld"; then + _LT_TAGVAR(archive_cmds, $1)='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic' + + # If archive_cmds runs LD, not CC, wlarc should be empty + # XXX I think wlarc can be eliminated in ltcf-cxx, but I need to + # investigate it a little bit more. (MM) + wlarc='$wl' + + # ancient GNU ld didn't support --whole-archive et. al. + if eval "`$CC -print-prog-name=ld` --help 2>&1" | + $GREP 'no-whole-archive' > /dev/null; then + _LT_TAGVAR(whole_archive_flag_spec, $1)=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive' + else + _LT_TAGVAR(whole_archive_flag_spec, $1)= + fi + else + with_gnu_ld=no + wlarc= + + # A generic and very simple default shared library creation + # command for GNU C++ for the case where it uses the native + # linker, instead of GNU ld. If possible, this setting should + # overridden to take advantage of the native linker features on + # the platform it is being used on. + _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib' + fi + + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"' + + else + GXX=no + with_gnu_ld=no + wlarc= + fi + + # PORTME: fill in a description of your system's C++ link characteristics + AC_MSG_CHECKING([whether the $compiler linker ($LD) supports shared libraries]) + _LT_TAGVAR(ld_shlibs, $1)=yes + case $host_os in + aix3*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + aix[[4-9]]*) + if test ia64 = "$host_cpu"; then + # On IA64, the linker does run time linking by default, so we don't + # have to do anything special. + aix_use_runtimelinking=no + exp_sym_flag='-Bexport' + no_entry_flag= + else + aix_use_runtimelinking=no + + # Test if we are trying to use run time linking or normal + # AIX style linking. If -brtl is somewhere in LDFLAGS, we + # have runtime linking enabled, and use it for executables. + # For shared libraries, we enable/disable runtime linking + # depending on the kind of the shared library created - + # when "with_aix_soname,aix_use_runtimelinking" is: + # "aix,no" lib.a(lib.so.V) shared, rtl:no, for executables + # "aix,yes" lib.so shared, rtl:yes, for executables + # lib.a static archive + # "both,no" lib.so.V(shr.o) shared, rtl:yes + # lib.a(lib.so.V) shared, rtl:no, for executables + # "both,yes" lib.so.V(shr.o) shared, rtl:yes, for executables + # lib.a(lib.so.V) shared, rtl:no + # "svr4,*" lib.so.V(shr.o) shared, rtl:yes, for executables + # lib.a static archive + case $host_os in aix4.[[23]]|aix4.[[23]].*|aix[[5-9]]*) + for ld_flag in $LDFLAGS; do + case $ld_flag in + *-brtl*) + aix_use_runtimelinking=yes + break + ;; + esac + done + if test svr4,no = "$with_aix_soname,$aix_use_runtimelinking"; then + # With aix-soname=svr4, we create the lib.so.V shared archives only, + # so we don't have lib.a shared libs to link our executables. + # We have to force runtime linking in this case. + aix_use_runtimelinking=yes + LDFLAGS="$LDFLAGS -Wl,-brtl" + fi + ;; + esac + + exp_sym_flag='-bexport' + no_entry_flag='-bnoentry' + fi + + # When large executables or shared objects are built, AIX ld can + # have problems creating the table of contents. If linking a library + # or program results in "error TOC overflow" add -mminimal-toc to + # CXXFLAGS/CFLAGS for g++/gcc. In the cases where that is not + # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS. + + _LT_TAGVAR(archive_cmds, $1)='' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_direct_absolute, $1)=yes + _LT_TAGVAR(hardcode_libdir_separator, $1)=':' + _LT_TAGVAR(link_all_deplibs, $1)=yes + _LT_TAGVAR(file_list_spec, $1)='$wl-f,' + case $with_aix_soname,$aix_use_runtimelinking in + aix,*) ;; # no import file + svr4,* | *,yes) # use import file + # The Import File defines what to hardcode. + _LT_TAGVAR(hardcode_direct, $1)=no + _LT_TAGVAR(hardcode_direct_absolute, $1)=no + ;; + esac + + if test yes = "$GXX"; then + case $host_os in aix4.[[012]]|aix4.[[012]].*) + # We only want to do this on AIX 4.2 and lower, the check + # below for broken collect2 doesn't work under 4.3+ + collect2name=`$CC -print-prog-name=collect2` + if test -f "$collect2name" && + strings "$collect2name" | $GREP resolve_lib_name >/dev/null + then + # We have reworked collect2 + : + else + # We have old collect2 + _LT_TAGVAR(hardcode_direct, $1)=unsupported + # It fails to find uninstalled libraries when the uninstalled + # path is not listed in the libpath. Setting hardcode_minus_L + # to unsupported forces relinking + _LT_TAGVAR(hardcode_minus_L, $1)=yes + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)= + fi + esac + shared_flag='-shared' + if test yes = "$aix_use_runtimelinking"; then + shared_flag=$shared_flag' $wl-G' + fi + # Need to ensure runtime linking is disabled for the traditional + # shared library, or the linker may eventually find shared libraries + # /with/ Import File - we do not want to mix them. + shared_flag_aix='-shared' + shared_flag_svr4='-shared $wl-G' + else + # not using gcc + if test ia64 = "$host_cpu"; then + # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release + # chokes on -Wl,-G. The following line is correct: + shared_flag='-G' + else + if test yes = "$aix_use_runtimelinking"; then + shared_flag='$wl-G' + else + shared_flag='$wl-bM:SRE' + fi + shared_flag_aix='$wl-bM:SRE' + shared_flag_svr4='$wl-G' + fi + fi + + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-bexpall' + # It seems that -bexpall does not export symbols beginning with + # underscore (_), so it is better to generate a list of symbols to + # export. + _LT_TAGVAR(always_export_symbols, $1)=yes + if test aix,yes = "$with_aix_soname,$aix_use_runtimelinking"; then + # Warning - without using the other runtime loading flags (-brtl), + # -berok will link without error, but may produce a broken library. + # The "-G" linker flag allows undefined symbols. + _LT_TAGVAR(no_undefined_flag, $1)='-bernotok' + # Determine the default libpath from the value encoded in an empty + # executable. + _LT_SYS_MODULE_PATH_AIX([$1]) + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath" + + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $deplibs $wl'$no_entry_flag' $compiler_flags `if test -n "$allow_undefined_flag"; then func_echo_all "$wl$allow_undefined_flag"; else :; fi` $wl'$exp_sym_flag:\$export_symbols' '$shared_flag + else + if test ia64 = "$host_cpu"; then + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R $libdir:/usr/lib:/lib' + _LT_TAGVAR(allow_undefined_flag, $1)="-z nodefs" + _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\$wl$no_entry_flag"' $compiler_flags $wl$allow_undefined_flag '"\$wl$exp_sym_flag:\$export_symbols" + else + # Determine the default libpath from the value encoded in an + # empty executable. + _LT_SYS_MODULE_PATH_AIX([$1]) + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath" + # Warning - without using the other run time loading flags, + # -berok will link without error, but may produce a broken library. + _LT_TAGVAR(no_undefined_flag, $1)=' $wl-bernotok' + _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-berok' + if test yes = "$with_gnu_ld"; then + # We only use this code for GNU lds that support --whole-archive. + _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive$convenience $wl--no-whole-archive' + else + # Exported symbols can be pulled into shared objects from archives + _LT_TAGVAR(whole_archive_flag_spec, $1)='$convenience' + fi + _LT_TAGVAR(archive_cmds_need_lc, $1)=yes + _LT_TAGVAR(archive_expsym_cmds, $1)='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d' + # -brtl affects multiple linker settings, -berok does not and is overridden later + compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([[, ]]\\)%-berok\\1%g"`' + if test svr4 != "$with_aix_soname"; then + # This is similar to how AIX traditionally builds its shared + # libraries. Need -bnortl late, we may have -brtl in LDFLAGS. + _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname' + fi + if test aix != "$with_aix_soname"; then + _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! $soname($shared_archive_member_spec.o)"; if test shr_64 = "$shared_archive_member_spec"; then func_echo_all "# 64"; else func_echo_all "# 32"; fi; cat $export_symbols ) > $output_objdir/$realname.d/$shared_archive_member_spec.imp~$AR $AR_FLAGS $output_objdir/$soname $output_objdir/$realname.d/$shared_archive_member_spec.o $output_objdir/$realname.d/$shared_archive_member_spec.imp' + else + # used by -dlpreopen to get the symbols + _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$MV $output_objdir/$realname.d/$soname $output_objdir' + fi + _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$RM -r $output_objdir/$realname.d' + fi + fi + ;; + + beos*) + if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + # Joseph Beckenbach says some releases of gcc + # support --undefined. This deserves some investigation. FIXME + _LT_TAGVAR(archive_cmds, $1)='$CC -nostart $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + + chorus*) + case $cc_basename in + *) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + esac + ;; + + cygwin* | mingw* | pw32* | cegcc*) + case $GXX,$cc_basename in + ,cl* | no,cl*) + # Native MSVC + # hardcode_libdir_flag_spec is actually meaningless, as there is + # no search path for DLLs. + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' ' + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + _LT_TAGVAR(always_export_symbols, $1)=yes + _LT_TAGVAR(file_list_spec, $1)='@' + # Tell ltmain to make .lib files, not .a files. + libext=lib + # Tell ltmain to make .dll files, not .so files. + shrext_cmds=.dll + # FIXME: Setting linknames here is a bad hack. + _LT_TAGVAR(archive_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames=' + _LT_TAGVAR(archive_expsym_cmds, $1)='if _LT_DLL_DEF_P([$export_symbols]); then + cp "$export_symbols" "$output_objdir/$soname.def"; + echo "$tool_output_objdir$soname.def" > "$output_objdir/$soname.exp"; + else + $SED -e '\''s/^/-link -EXPORT:/'\'' < $export_symbols > $output_objdir/$soname.exp; + fi~ + $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~ + linknames=' + # The linker will not automatically build a static lib if we build a DLL. + # _LT_TAGVAR(old_archive_from_new_cmds, $1)='true' + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes + # Don't use ranlib + _LT_TAGVAR(old_postinstall_cmds, $1)='chmod 644 $oldlib' + _LT_TAGVAR(postlink_cmds, $1)='lt_outputfile="@OUTPUT@"~ + lt_tool_outputfile="@TOOL_OUTPUT@"~ + case $lt_outputfile in + *.exe|*.EXE) ;; + *) + lt_outputfile=$lt_outputfile.exe + lt_tool_outputfile=$lt_tool_outputfile.exe + ;; + esac~ + func_to_tool_file "$lt_outputfile"~ + if test : != "$MANIFEST_TOOL" && test -f "$lt_outputfile.manifest"; then + $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1; + $RM "$lt_outputfile.manifest"; + fi' + ;; + *) + # g++ + # _LT_TAGVAR(hardcode_libdir_flag_spec, $1) is actually meaningless, + # as there is no search path for DLLs. + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-all-symbols' + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + _LT_TAGVAR(always_export_symbols, $1)=no + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes + + if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib' + # If the export-symbols file already is a .def file, use it as + # is; otherwise, prepend EXPORTS... + _LT_TAGVAR(archive_expsym_cmds, $1)='if _LT_DLL_DEF_P([$export_symbols]); then + cp $export_symbols $output_objdir/$soname.def; + else + echo EXPORTS > $output_objdir/$soname.def; + cat $export_symbols >> $output_objdir/$soname.def; + fi~ + $CC -shared -nostdlib $output_objdir/$soname.def $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib' + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + esac + ;; + darwin* | rhapsody*) + _LT_DARWIN_LINKER_FEATURES($1) + ;; + + os2*) + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_minus_L, $1)=yes + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + shrext_cmds=.dll + _LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~ + $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~ + $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~ + $ECHO EXPORTS >> $output_objdir/$libname.def~ + emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~ + $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ + emximp -o $lib $output_objdir/$libname.def' + _LT_TAGVAR(archive_expsym_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~ + $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~ + $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~ + $ECHO EXPORTS >> $output_objdir/$libname.def~ + prefix_cmds="$SED"~ + if test EXPORTS = "`$SED 1q $export_symbols`"; then + prefix_cmds="$prefix_cmds -e 1d"; + fi~ + prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~ + cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~ + $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ + emximp -o $lib $output_objdir/$libname.def' + _LT_TAGVAR(old_archive_From_new_cmds, $1)='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def' + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes + ;; + + dgux*) + case $cc_basename in + ec++*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + ghcx*) + # Green Hills C++ Compiler + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + *) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + esac + ;; + + freebsd2.*) + # C++ shared libraries reported to be fairly broken before + # switch to ELF + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + + freebsd-elf*) + _LT_TAGVAR(archive_cmds_need_lc, $1)=no + ;; + + freebsd* | dragonfly*) + # FreeBSD 3 and later use GNU C++ and GNU ld with standard ELF + # conventions + _LT_TAGVAR(ld_shlibs, $1)=yes + ;; + + haiku*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(link_all_deplibs, $1)=yes + ;; + + hpux9*) + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_minus_L, $1)=yes # Not in the search PATH, + # but as the default + # location of the library. + + case $cc_basename in + CC*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + aCC*) + _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -b $wl+b $wl$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib' + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + # + # There doesn't appear to be a way to prevent this compiler from + # explicitly linking system object files so we need to strip them + # from the output so that they don't get included in the library + # dependencies. + output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $EGREP "\-L"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"' + ;; + *) + if test yes = "$GXX"; then + _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -shared -nostdlib $pic_flag $wl+b $wl$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib' + else + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + esac + ;; + + hpux10*|hpux11*) + if test no = "$with_gnu_ld"; then + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + + case $host_cpu in + hppa*64*|ia64*) + ;; + *) + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E' + ;; + esac + fi + case $host_cpu in + hppa*64*|ia64*) + _LT_TAGVAR(hardcode_direct, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + *) + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_direct_absolute, $1)=yes + _LT_TAGVAR(hardcode_minus_L, $1)=yes # Not in the search PATH, + # but as the default + # location of the library. + ;; + esac + + case $cc_basename in + CC*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + aCC*) + case $host_cpu in + hppa*64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + ia64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + *) + _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + esac + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + # + # There doesn't appear to be a way to prevent this compiler from + # explicitly linking system object files so we need to strip them + # from the output so that they don't get included in the library + # dependencies. + output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $GREP "\-L"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"' + ;; + *) + if test yes = "$GXX"; then + if test no = "$with_gnu_ld"; then + case $host_cpu in + hppa*64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib -fPIC $wl+h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + ia64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $pic_flag $wl+h $wl$soname $wl+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + *) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + esac + fi + else + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + esac + ;; + + interix[[3-9]]*) + _LT_TAGVAR(hardcode_direct, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E' + # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc. + # Instead, shared libraries are loaded at an image base (0x10000000 by + # default) and relocated if they conflict, which is a slow very memory + # consuming and fragmenting process. To avoid this, we pick a random, + # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link + # time. Moving up from 0x10000000 also allows more sbrk(2) space. + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='sed "s|^|_|" $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--retain-symbols-file,$output_objdir/$soname.expsym $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib' + ;; + irix5* | irix6*) + case $cc_basename in + CC*) + # SGI C++ + _LT_TAGVAR(archive_cmds, $1)='$CC -shared -all -multigot $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' + + # Archives containing C++ object files must be created using + # "CC -ar", where "CC" is the IRIX C++ compiler. This is + # necessary to make sure instantiated templates are included + # in the archive. + _LT_TAGVAR(old_archive_cmds, $1)='$CC -ar -WR,-u -o $oldlib $oldobjs' + ;; + *) + if test yes = "$GXX"; then + if test no = "$with_gnu_ld"; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib' + else + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` -o $lib' + fi + fi + _LT_TAGVAR(link_all_deplibs, $1)=yes + ;; + esac + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + _LT_TAGVAR(inherit_rpath, $1)=yes + ;; + + linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) + case $cc_basename in + KCC*) + # Kuck and Associates, Inc. (KAI) C++ Compiler + + # KCC will only create a shared library if the output file + # ends with ".so" (or ".sl" for HP-UX), so rename the library + # to its proper name (with version) after linking. + _LT_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib $wl-retain-symbols-file,$export_symbols; mv \$templib $lib' + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + # + # There doesn't appear to be a way to prevent this compiler from + # explicitly linking system object files so we need to strip them + # from the output so that they don't get included in the library + # dependencies. + output_verbose_link_cmd='templist=`$CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 | $GREP "ld"`; rm -f libconftest$shared_ext; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"' + + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic' + + # Archives containing C++ object files must be created using + # "CC -Bstatic", where "CC" is the KAI C++ compiler. + _LT_TAGVAR(old_archive_cmds, $1)='$CC -Bstatic -o $oldlib $oldobjs' + ;; + icpc* | ecpc* ) + # Intel C++ + with_gnu_ld=yes + # version 8.0 and above of icpc choke on multiply defined symbols + # if we add $predep_objects and $postdep_objects, however 7.1 and + # earlier do not add the objects themselves. + case `$CC -V 2>&1` in + *"Version 7."*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + ;; + *) # Version 8.0 or newer + tmp_idyn= + case $host_cpu in + ia64*) tmp_idyn=' -i_dynamic';; + esac + _LT_TAGVAR(archive_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + ;; + esac + _LT_TAGVAR(archive_cmds_need_lc, $1)=no + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic' + _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive$convenience $wl--no-whole-archive' + ;; + pgCC* | pgcpp*) + # Portland Group C++ compiler + case `$CC -V` in + *pgCC\ [[1-5]].* | *pgcpp\ [[1-5]].*) + _LT_TAGVAR(prelink_cmds, $1)='tpldir=Template.dir~ + rm -rf $tpldir~ + $CC --prelink_objects --instantiation_dir $tpldir $objs $libobjs $compile_deplibs~ + compile_command="$compile_command `find $tpldir -name \*.o | sort | $NL2SP`"' + _LT_TAGVAR(old_archive_cmds, $1)='tpldir=Template.dir~ + rm -rf $tpldir~ + $CC --prelink_objects --instantiation_dir $tpldir $oldobjs$old_deplibs~ + $AR $AR_FLAGS $oldlib$oldobjs$old_deplibs `find $tpldir -name \*.o | sort | $NL2SP`~ + $RANLIB $oldlib' + _LT_TAGVAR(archive_cmds, $1)='tpldir=Template.dir~ + rm -rf $tpldir~ + $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~ + $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='tpldir=Template.dir~ + rm -rf $tpldir~ + $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~ + $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + ;; + *) # Version 6 and above use weak symbols + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + ;; + esac + + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl--rpath $wl$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic' + _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive' + ;; + cxx*) + # Compaq C++ + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib $wl-retain-symbols-file $wl$export_symbols' + + runpath_var=LD_RUN_PATH + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + # + # There doesn't appear to be a way to prevent this compiler from + # explicitly linking system object files so we need to strip them + # from the output so that they don't get included in the library + # dependencies. + output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld .*$\)/\1/"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "X$list" | $Xsed' + ;; + xl* | mpixl* | bgxl*) + # IBM XL 8.0 on PPC, with GNU ld + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic' + _LT_TAGVAR(archive_cmds, $1)='$CC -qmkshrobj $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + if test yes = "$supports_anon_versioning"; then + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~ + cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~ + echo "local: *; };" >> $output_objdir/$libname.ver~ + $CC -qmkshrobj $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$output_objdir/$libname.ver -o $lib' + fi + ;; + *) + case `$CC -V 2>&1 | sed 5q` in + *Sun\ C*) + # Sun C++ 5.9 + _LT_TAGVAR(no_undefined_flag, $1)=' -zdefs' + _LT_TAGVAR(archive_cmds, $1)='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-retain-symbols-file $wl$export_symbols' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' + _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive' + _LT_TAGVAR(compiler_needs_object, $1)=yes + + # Not sure whether something based on + # $CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 + # would be better. + output_verbose_link_cmd='func_echo_all' + + # Archives containing C++ object files must be created using + # "CC -xar", where "CC" is the Sun C++ compiler. This is + # necessary to make sure instantiated templates are included + # in the archive. + _LT_TAGVAR(old_archive_cmds, $1)='$CC -xar -o $oldlib $oldobjs' + ;; + esac + ;; + esac + ;; + + lynxos*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + + m88k*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + + mvs*) + case $cc_basename in + cxx*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + *) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + esac + ;; + + netbsd*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags' + wlarc= + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + fi + # Workaround some broken pre-1.5 toolchains + output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP conftest.$objext | $SED -e "s:-lgcc -lc -lgcc::"' + ;; + + *nto* | *qnx*) + _LT_TAGVAR(ld_shlibs, $1)=yes + ;; + + openbsd* | bitrig*) + if test -f /usr/libexec/ld.so; then + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + _LT_TAGVAR(hardcode_direct_absolute, $1)=yes + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir' + if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`"; then + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-retain-symbols-file,$export_symbols -o $lib' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E' + _LT_TAGVAR(whole_archive_flag_spec, $1)=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive' + fi + output_verbose_link_cmd=func_echo_all + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + + osf3* | osf4* | osf5*) + case $cc_basename in + KCC*) + # Kuck and Associates, Inc. (KAI) C++ Compiler + + # KCC will only create a shared library if the output file + # ends with ".so" (or ".sl" for HP-UX), so rename the library + # to its proper name (with version) after linking. + _LT_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo "$lib" | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib' + + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + + # Archives containing C++ object files must be created using + # the KAI C++ compiler. + case $host in + osf3*) _LT_TAGVAR(old_archive_cmds, $1)='$CC -Bstatic -o $oldlib $oldobjs' ;; + *) _LT_TAGVAR(old_archive_cmds, $1)='$CC -o $oldlib $oldobjs' ;; + esac + ;; + RCC*) + # Rational C++ 2.4.1 + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + cxx*) + case $host in + osf3*) + _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $soname `test -n "$verstring" && func_echo_all "$wl-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + ;; + *) + _LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done~ + echo "-hidden">> $lib.exp~ + $CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname $wl-input $wl$lib.exp `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib~ + $RM $lib.exp' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir' + ;; + esac + + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + # + # There doesn't appear to be a way to prevent this compiler from + # explicitly linking system object files so we need to strip them + # from the output so that they don't get included in the library + # dependencies. + output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld" | $GREP -v "ld:"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld.*$\)/\1/"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"' + ;; + *) + if test yes,no = "$GXX,$with_gnu_ld"; then + _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*' + case $host in + osf3*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib' + ;; + *) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-msym $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib' + ;; + esac + + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"' + + else + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + esac + ;; + + psos*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + + sunos4*) + case $cc_basename in + CC*) + # Sun C++ 4.x + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + lcc*) + # Lucid + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + *) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + esac + ;; + + solaris*) + case $cc_basename in + CC* | sunCC*) + # Sun C++ 4.2, 5.x and Centerline C++ + _LT_TAGVAR(archive_cmds_need_lc,$1)=yes + _LT_TAGVAR(no_undefined_flag, $1)=' -zdefs' + _LT_TAGVAR(archive_cmds, $1)='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -G$allow_undefined_flag $wl-M $wl$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp' + + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + case $host_os in + solaris2.[[0-5]] | solaris2.[[0-5]].*) ;; + *) + # The compiler driver will combine and reorder linker options, + # but understands '-z linker_flag'. + # Supported since Solaris 2.6 (maybe 2.5.1?) + _LT_TAGVAR(whole_archive_flag_spec, $1)='-z allextract$convenience -z defaultextract' + ;; + esac + _LT_TAGVAR(link_all_deplibs, $1)=yes + + output_verbose_link_cmd='func_echo_all' + + # Archives containing C++ object files must be created using + # "CC -xar", where "CC" is the Sun C++ compiler. This is + # necessary to make sure instantiated templates are included + # in the archive. + _LT_TAGVAR(old_archive_cmds, $1)='$CC -xar -o $oldlib $oldobjs' + ;; + gcx*) + # Green Hills C++ Compiler + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib' + + # The C++ compiler must be used to create the archive. + _LT_TAGVAR(old_archive_cmds, $1)='$CC $LDFLAGS -archive -o $oldlib $oldobjs' + ;; + *) + # GNU C++ compiler with Solaris linker + if test yes,no = "$GXX,$with_gnu_ld"; then + _LT_TAGVAR(no_undefined_flag, $1)=' $wl-z ${wl}defs' + if $CC --version | $GREP -v '^2\.7' > /dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -shared $pic_flag -nostdlib $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp' + + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"' + else + # g++ 2.7 appears to require '-G' NOT '-shared' on this + # platform. + _LT_TAGVAR(archive_cmds, $1)='$CC -G -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -G -nostdlib $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp' + + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + output_verbose_link_cmd='$CC -G $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"' + fi + + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R $wl$libdir' + case $host_os in + solaris2.[[0-5]] | solaris2.[[0-5]].*) ;; + *) + _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl-z ${wl}allextract$convenience $wl-z ${wl}defaultextract' + ;; + esac + fi + ;; + esac + ;; + + sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[[01]].[[10]]* | unixware7* | sco3.2v5.0.[[024]]*) + _LT_TAGVAR(no_undefined_flag, $1)='$wl-z,text' + _LT_TAGVAR(archive_cmds_need_lc, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + runpath_var='LD_RUN_PATH' + + case $cc_basename in + CC*) + _LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + *) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + esac + ;; + + sysv5* | sco3.2v5* | sco5v6*) + # Note: We CANNOT use -z defs as we might desire, because we do not + # link with -lc, and that would cause any symbols used from libc to + # always be unresolved, which means just about no library would + # ever link correctly. If we're not using GNU ld we use -z text + # though, which does catch some bad symbols but isn't as heavy-handed + # as -z defs. + _LT_TAGVAR(no_undefined_flag, $1)='$wl-z,text' + _LT_TAGVAR(allow_undefined_flag, $1)='$wl-z,nodefs' + _LT_TAGVAR(archive_cmds_need_lc, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R,$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=':' + _LT_TAGVAR(link_all_deplibs, $1)=yes + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-Bexport' + runpath_var='LD_RUN_PATH' + + case $cc_basename in + CC*) + _LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(old_archive_cmds, $1)='$CC -Tprelink_objects $oldobjs~ + '"$_LT_TAGVAR(old_archive_cmds, $1)" + _LT_TAGVAR(reload_cmds, $1)='$CC -Tprelink_objects $reload_objs~ + '"$_LT_TAGVAR(reload_cmds, $1)" + ;; + *) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + esac + ;; + + tandem*) + case $cc_basename in + NCC*) + # NonStop-UX NCC 3.20 + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + *) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + esac + ;; + + vxworks*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + + *) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + esac + + AC_MSG_RESULT([$_LT_TAGVAR(ld_shlibs, $1)]) + test no = "$_LT_TAGVAR(ld_shlibs, $1)" && can_build_shared=no + + _LT_TAGVAR(GCC, $1)=$GXX + _LT_TAGVAR(LD, $1)=$LD + + ## CAVEAT EMPTOR: + ## There is no encapsulation within the following macros, do not change + ## the running order or otherwise move them around unless you know exactly + ## what you are doing... + _LT_SYS_HIDDEN_LIBDEPS($1) + _LT_COMPILER_PIC($1) + _LT_COMPILER_C_O($1) + _LT_COMPILER_FILE_LOCKS($1) + _LT_LINKER_SHLIBS($1) + _LT_SYS_DYNAMIC_LINKER($1) + _LT_LINKER_HARDCODE_LIBPATH($1) + + _LT_CONFIG($1) + fi # test -n "$compiler" + + CC=$lt_save_CC + CFLAGS=$lt_save_CFLAGS + LDCXX=$LD + LD=$lt_save_LD + GCC=$lt_save_GCC + with_gnu_ld=$lt_save_with_gnu_ld + lt_cv_path_LDCXX=$lt_cv_path_LD + lt_cv_path_LD=$lt_save_path_LD + lt_cv_prog_gnu_ldcxx=$lt_cv_prog_gnu_ld + lt_cv_prog_gnu_ld=$lt_save_with_gnu_ld +fi # test yes != "$_lt_caught_CXX_error" + +AC_LANG_POP +])# _LT_LANG_CXX_CONFIG + + +# _LT_FUNC_STRIPNAME_CNF +# ---------------------- +# func_stripname_cnf prefix suffix name +# strip PREFIX and SUFFIX off of NAME. +# PREFIX and SUFFIX must not contain globbing or regex special +# characters, hashes, percent signs, but SUFFIX may contain a leading +# dot (in which case that matches only a dot). +# +# This function is identical to the (non-XSI) version of func_stripname, +# except this one can be used by m4 code that may be executed by configure, +# rather than the libtool script. +m4_defun([_LT_FUNC_STRIPNAME_CNF],[dnl +AC_REQUIRE([_LT_DECL_SED]) +AC_REQUIRE([_LT_PROG_ECHO_BACKSLASH]) +func_stripname_cnf () +{ + case @S|@2 in + .*) func_stripname_result=`$ECHO "@S|@3" | $SED "s%^@S|@1%%; s%\\\\@S|@2\$%%"`;; + *) func_stripname_result=`$ECHO "@S|@3" | $SED "s%^@S|@1%%; s%@S|@2\$%%"`;; + esac +} # func_stripname_cnf +])# _LT_FUNC_STRIPNAME_CNF + + +# _LT_SYS_HIDDEN_LIBDEPS([TAGNAME]) +# --------------------------------- +# Figure out "hidden" library dependencies from verbose +# compiler output when linking a shared library. +# Parse the compiler output and extract the necessary +# objects, libraries and library flags. +m4_defun([_LT_SYS_HIDDEN_LIBDEPS], +[m4_require([_LT_FILEUTILS_DEFAULTS])dnl +AC_REQUIRE([_LT_FUNC_STRIPNAME_CNF])dnl +# Dependencies to place before and after the object being linked: +_LT_TAGVAR(predep_objects, $1)= +_LT_TAGVAR(postdep_objects, $1)= +_LT_TAGVAR(predeps, $1)= +_LT_TAGVAR(postdeps, $1)= +_LT_TAGVAR(compiler_lib_search_path, $1)= + +dnl we can't use the lt_simple_compile_test_code here, +dnl because it contains code intended for an executable, +dnl not a library. It's possible we should let each +dnl tag define a new lt_????_link_test_code variable, +dnl but it's only used here... +m4_if([$1], [], [cat > conftest.$ac_ext <<_LT_EOF +int a; +void foo (void) { a = 0; } +_LT_EOF +], [$1], [CXX], [cat > conftest.$ac_ext <<_LT_EOF +class Foo +{ +public: + Foo (void) { a = 0; } +private: + int a; +}; +_LT_EOF +], [$1], [F77], [cat > conftest.$ac_ext <<_LT_EOF + subroutine foo + implicit none + integer*4 a + a=0 + return + end +_LT_EOF +], [$1], [FC], [cat > conftest.$ac_ext <<_LT_EOF + subroutine foo + implicit none + integer a + a=0 + return + end +_LT_EOF +], [$1], [GCJ], [cat > conftest.$ac_ext <<_LT_EOF +public class foo { + private int a; + public void bar (void) { + a = 0; + } +}; +_LT_EOF +], [$1], [GO], [cat > conftest.$ac_ext <<_LT_EOF +package foo +func foo() { +} +_LT_EOF +]) + +_lt_libdeps_save_CFLAGS=$CFLAGS +case "$CC $CFLAGS " in #( +*\ -flto*\ *) CFLAGS="$CFLAGS -fno-lto" ;; +*\ -fwhopr*\ *) CFLAGS="$CFLAGS -fno-whopr" ;; +*\ -fuse-linker-plugin*\ *) CFLAGS="$CFLAGS -fno-use-linker-plugin" ;; +esac + +dnl Parse the compiler output and extract the necessary +dnl objects, libraries and library flags. +if AC_TRY_EVAL(ac_compile); then + # Parse the compiler output and extract the necessary + # objects, libraries and library flags. + + # Sentinel used to keep track of whether or not we are before + # the conftest object file. + pre_test_object_deps_done=no + + for p in `eval "$output_verbose_link_cmd"`; do + case $prev$p in + + -L* | -R* | -l*) + # Some compilers place space between "-{L,R}" and the path. + # Remove the space. + if test x-L = "$p" || + test x-R = "$p"; then + prev=$p + continue + fi + + # Expand the sysroot to ease extracting the directories later. + if test -z "$prev"; then + case $p in + -L*) func_stripname_cnf '-L' '' "$p"; prev=-L; p=$func_stripname_result ;; + -R*) func_stripname_cnf '-R' '' "$p"; prev=-R; p=$func_stripname_result ;; + -l*) func_stripname_cnf '-l' '' "$p"; prev=-l; p=$func_stripname_result ;; + esac + fi + case $p in + =*) func_stripname_cnf '=' '' "$p"; p=$lt_sysroot$func_stripname_result ;; + esac + if test no = "$pre_test_object_deps_done"; then + case $prev in + -L | -R) + # Internal compiler library paths should come after those + # provided the user. The postdeps already come after the + # user supplied libs so there is no need to process them. + if test -z "$_LT_TAGVAR(compiler_lib_search_path, $1)"; then + _LT_TAGVAR(compiler_lib_search_path, $1)=$prev$p + else + _LT_TAGVAR(compiler_lib_search_path, $1)="${_LT_TAGVAR(compiler_lib_search_path, $1)} $prev$p" + fi + ;; + # The "-l" case would never come before the object being + # linked, so don't bother handling this case. + esac + else + if test -z "$_LT_TAGVAR(postdeps, $1)"; then + _LT_TAGVAR(postdeps, $1)=$prev$p + else + _LT_TAGVAR(postdeps, $1)="${_LT_TAGVAR(postdeps, $1)} $prev$p" + fi + fi + prev= + ;; + + *.lto.$objext) ;; # Ignore GCC LTO objects + *.$objext) + # This assumes that the test object file only shows up + # once in the compiler output. + if test "$p" = "conftest.$objext"; then + pre_test_object_deps_done=yes + continue + fi + + if test no = "$pre_test_object_deps_done"; then + if test -z "$_LT_TAGVAR(predep_objects, $1)"; then + _LT_TAGVAR(predep_objects, $1)=$p + else + _LT_TAGVAR(predep_objects, $1)="$_LT_TAGVAR(predep_objects, $1) $p" + fi + else + if test -z "$_LT_TAGVAR(postdep_objects, $1)"; then + _LT_TAGVAR(postdep_objects, $1)=$p + else + _LT_TAGVAR(postdep_objects, $1)="$_LT_TAGVAR(postdep_objects, $1) $p" + fi + fi + ;; + + *) ;; # Ignore the rest. + + esac + done + + # Clean up. + rm -f a.out a.exe +else + echo "libtool.m4: error: problem compiling $1 test program" +fi + +$RM -f confest.$objext +CFLAGS=$_lt_libdeps_save_CFLAGS + +# PORTME: override above test on systems where it is broken +m4_if([$1], [CXX], +[case $host_os in +interix[[3-9]]*) + # Interix 3.5 installs completely hosed .la files for C++, so rather than + # hack all around it, let's just trust "g++" to DTRT. + _LT_TAGVAR(predep_objects,$1)= + _LT_TAGVAR(postdep_objects,$1)= + _LT_TAGVAR(postdeps,$1)= + ;; +esac +]) + +case " $_LT_TAGVAR(postdeps, $1) " in +*" -lc "*) _LT_TAGVAR(archive_cmds_need_lc, $1)=no ;; +esac + _LT_TAGVAR(compiler_lib_search_dirs, $1)= +if test -n "${_LT_TAGVAR(compiler_lib_search_path, $1)}"; then + _LT_TAGVAR(compiler_lib_search_dirs, $1)=`echo " ${_LT_TAGVAR(compiler_lib_search_path, $1)}" | $SED -e 's! -L! !g' -e 's!^ !!'` +fi +_LT_TAGDECL([], [compiler_lib_search_dirs], [1], + [The directories searched by this compiler when creating a shared library]) +_LT_TAGDECL([], [predep_objects], [1], + [Dependencies to place before and after the objects being linked to + create a shared library]) +_LT_TAGDECL([], [postdep_objects], [1]) +_LT_TAGDECL([], [predeps], [1]) +_LT_TAGDECL([], [postdeps], [1]) +_LT_TAGDECL([], [compiler_lib_search_path], [1], + [The library search path used internally by the compiler when linking + a shared library]) +])# _LT_SYS_HIDDEN_LIBDEPS + + +# _LT_LANG_F77_CONFIG([TAG]) +# -------------------------- +# Ensure that the configuration variables for a Fortran 77 compiler are +# suitably defined. These variables are subsequently used by _LT_CONFIG +# to write the compiler configuration to 'libtool'. +m4_defun([_LT_LANG_F77_CONFIG], +[AC_LANG_PUSH(Fortran 77) +if test -z "$F77" || test no = "$F77"; then + _lt_disable_F77=yes +fi + +_LT_TAGVAR(archive_cmds_need_lc, $1)=no +_LT_TAGVAR(allow_undefined_flag, $1)= +_LT_TAGVAR(always_export_symbols, $1)=no +_LT_TAGVAR(archive_expsym_cmds, $1)= +_LT_TAGVAR(export_dynamic_flag_spec, $1)= +_LT_TAGVAR(hardcode_direct, $1)=no +_LT_TAGVAR(hardcode_direct_absolute, $1)=no +_LT_TAGVAR(hardcode_libdir_flag_spec, $1)= +_LT_TAGVAR(hardcode_libdir_separator, $1)= +_LT_TAGVAR(hardcode_minus_L, $1)=no +_LT_TAGVAR(hardcode_automatic, $1)=no +_LT_TAGVAR(inherit_rpath, $1)=no +_LT_TAGVAR(module_cmds, $1)= +_LT_TAGVAR(module_expsym_cmds, $1)= +_LT_TAGVAR(link_all_deplibs, $1)=unknown +_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds +_LT_TAGVAR(reload_flag, $1)=$reload_flag +_LT_TAGVAR(reload_cmds, $1)=$reload_cmds +_LT_TAGVAR(no_undefined_flag, $1)= +_LT_TAGVAR(whole_archive_flag_spec, $1)= +_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no + +# Source file extension for f77 test sources. +ac_ext=f + +# Object file extension for compiled f77 test sources. +objext=o +_LT_TAGVAR(objext, $1)=$objext + +# No sense in running all these tests if we already determined that +# the F77 compiler isn't working. Some variables (like enable_shared) +# are currently assumed to apply to all compilers on this platform, +# and will be corrupted by setting them based on a non-working compiler. +if test yes != "$_lt_disable_F77"; then + # Code to be used in simple compile tests + lt_simple_compile_test_code="\ + subroutine t + return + end +" + + # Code to be used in simple link tests + lt_simple_link_test_code="\ + program t + end +" + + # ltmain only uses $CC for tagged configurations so make sure $CC is set. + _LT_TAG_COMPILER + + # save warnings/boilerplate of simple test code + _LT_COMPILER_BOILERPLATE + _LT_LINKER_BOILERPLATE + + # Allow CC to be a program name with arguments. + lt_save_CC=$CC + lt_save_GCC=$GCC + lt_save_CFLAGS=$CFLAGS + CC=${F77-"f77"} + CFLAGS=$FFLAGS + compiler=$CC + _LT_TAGVAR(compiler, $1)=$CC + _LT_CC_BASENAME([$compiler]) + GCC=$G77 + if test -n "$compiler"; then + AC_MSG_CHECKING([if libtool supports shared libraries]) + AC_MSG_RESULT([$can_build_shared]) + + AC_MSG_CHECKING([whether to build shared libraries]) + test no = "$can_build_shared" && enable_shared=no + + # On AIX, shared libraries and static libraries use the same namespace, and + # are all built from PIC. + case $host_os in + aix3*) + test yes = "$enable_shared" && enable_static=no + if test -n "$RANLIB"; then + archive_cmds="$archive_cmds~\$RANLIB \$lib" + postinstall_cmds='$RANLIB $lib' + fi + ;; + aix[[4-9]]*) + if test ia64 != "$host_cpu"; then + case $enable_shared,$with_aix_soname,$aix_use_runtimelinking in + yes,aix,yes) ;; # shared object as lib.so file only + yes,svr4,*) ;; # shared object as lib.so archive member only + yes,*) enable_static=no ;; # shared object in lib.a archive as well + esac + fi + ;; + esac + AC_MSG_RESULT([$enable_shared]) + + AC_MSG_CHECKING([whether to build static libraries]) + # Make sure either enable_shared or enable_static is yes. + test yes = "$enable_shared" || enable_static=yes + AC_MSG_RESULT([$enable_static]) + + _LT_TAGVAR(GCC, $1)=$G77 + _LT_TAGVAR(LD, $1)=$LD + + ## CAVEAT EMPTOR: + ## There is no encapsulation within the following macros, do not change + ## the running order or otherwise move them around unless you know exactly + ## what you are doing... + _LT_COMPILER_PIC($1) + _LT_COMPILER_C_O($1) + _LT_COMPILER_FILE_LOCKS($1) + _LT_LINKER_SHLIBS($1) + _LT_SYS_DYNAMIC_LINKER($1) + _LT_LINKER_HARDCODE_LIBPATH($1) + + _LT_CONFIG($1) + fi # test -n "$compiler" + + GCC=$lt_save_GCC + CC=$lt_save_CC + CFLAGS=$lt_save_CFLAGS +fi # test yes != "$_lt_disable_F77" + +AC_LANG_POP +])# _LT_LANG_F77_CONFIG + + +# _LT_LANG_FC_CONFIG([TAG]) +# ------------------------- +# Ensure that the configuration variables for a Fortran compiler are +# suitably defined. These variables are subsequently used by _LT_CONFIG +# to write the compiler configuration to 'libtool'. +m4_defun([_LT_LANG_FC_CONFIG], +[AC_LANG_PUSH(Fortran) + +if test -z "$FC" || test no = "$FC"; then + _lt_disable_FC=yes +fi + +_LT_TAGVAR(archive_cmds_need_lc, $1)=no +_LT_TAGVAR(allow_undefined_flag, $1)= +_LT_TAGVAR(always_export_symbols, $1)=no +_LT_TAGVAR(archive_expsym_cmds, $1)= +_LT_TAGVAR(export_dynamic_flag_spec, $1)= +_LT_TAGVAR(hardcode_direct, $1)=no +_LT_TAGVAR(hardcode_direct_absolute, $1)=no +_LT_TAGVAR(hardcode_libdir_flag_spec, $1)= +_LT_TAGVAR(hardcode_libdir_separator, $1)= +_LT_TAGVAR(hardcode_minus_L, $1)=no +_LT_TAGVAR(hardcode_automatic, $1)=no +_LT_TAGVAR(inherit_rpath, $1)=no +_LT_TAGVAR(module_cmds, $1)= +_LT_TAGVAR(module_expsym_cmds, $1)= +_LT_TAGVAR(link_all_deplibs, $1)=unknown +_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds +_LT_TAGVAR(reload_flag, $1)=$reload_flag +_LT_TAGVAR(reload_cmds, $1)=$reload_cmds +_LT_TAGVAR(no_undefined_flag, $1)= +_LT_TAGVAR(whole_archive_flag_spec, $1)= +_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no + +# Source file extension for fc test sources. +ac_ext=${ac_fc_srcext-f} + +# Object file extension for compiled fc test sources. +objext=o +_LT_TAGVAR(objext, $1)=$objext + +# No sense in running all these tests if we already determined that +# the FC compiler isn't working. Some variables (like enable_shared) +# are currently assumed to apply to all compilers on this platform, +# and will be corrupted by setting them based on a non-working compiler. +if test yes != "$_lt_disable_FC"; then + # Code to be used in simple compile tests + lt_simple_compile_test_code="\ + subroutine t + return + end +" + + # Code to be used in simple link tests + lt_simple_link_test_code="\ + program t + end +" + + # ltmain only uses $CC for tagged configurations so make sure $CC is set. + _LT_TAG_COMPILER + + # save warnings/boilerplate of simple test code + _LT_COMPILER_BOILERPLATE + _LT_LINKER_BOILERPLATE + + # Allow CC to be a program name with arguments. + lt_save_CC=$CC + lt_save_GCC=$GCC + lt_save_CFLAGS=$CFLAGS + CC=${FC-"f95"} + CFLAGS=$FCFLAGS + compiler=$CC + GCC=$ac_cv_fc_compiler_gnu + + _LT_TAGVAR(compiler, $1)=$CC + _LT_CC_BASENAME([$compiler]) + + if test -n "$compiler"; then + AC_MSG_CHECKING([if libtool supports shared libraries]) + AC_MSG_RESULT([$can_build_shared]) + + AC_MSG_CHECKING([whether to build shared libraries]) + test no = "$can_build_shared" && enable_shared=no + + # On AIX, shared libraries and static libraries use the same namespace, and + # are all built from PIC. + case $host_os in + aix3*) + test yes = "$enable_shared" && enable_static=no + if test -n "$RANLIB"; then + archive_cmds="$archive_cmds~\$RANLIB \$lib" + postinstall_cmds='$RANLIB $lib' + fi + ;; + aix[[4-9]]*) + if test ia64 != "$host_cpu"; then + case $enable_shared,$with_aix_soname,$aix_use_runtimelinking in + yes,aix,yes) ;; # shared object as lib.so file only + yes,svr4,*) ;; # shared object as lib.so archive member only + yes,*) enable_static=no ;; # shared object in lib.a archive as well + esac + fi + ;; + esac + AC_MSG_RESULT([$enable_shared]) + + AC_MSG_CHECKING([whether to build static libraries]) + # Make sure either enable_shared or enable_static is yes. + test yes = "$enable_shared" || enable_static=yes + AC_MSG_RESULT([$enable_static]) + + _LT_TAGVAR(GCC, $1)=$ac_cv_fc_compiler_gnu + _LT_TAGVAR(LD, $1)=$LD + + ## CAVEAT EMPTOR: + ## There is no encapsulation within the following macros, do not change + ## the running order or otherwise move them around unless you know exactly + ## what you are doing... + _LT_SYS_HIDDEN_LIBDEPS($1) + _LT_COMPILER_PIC($1) + _LT_COMPILER_C_O($1) + _LT_COMPILER_FILE_LOCKS($1) + _LT_LINKER_SHLIBS($1) + _LT_SYS_DYNAMIC_LINKER($1) + _LT_LINKER_HARDCODE_LIBPATH($1) + + _LT_CONFIG($1) + fi # test -n "$compiler" + + GCC=$lt_save_GCC + CC=$lt_save_CC + CFLAGS=$lt_save_CFLAGS +fi # test yes != "$_lt_disable_FC" + +AC_LANG_POP +])# _LT_LANG_FC_CONFIG + + +# _LT_LANG_GCJ_CONFIG([TAG]) +# -------------------------- +# Ensure that the configuration variables for the GNU Java Compiler compiler +# are suitably defined. These variables are subsequently used by _LT_CONFIG +# to write the compiler configuration to 'libtool'. +m4_defun([_LT_LANG_GCJ_CONFIG], +[AC_REQUIRE([LT_PROG_GCJ])dnl +AC_LANG_SAVE + +# Source file extension for Java test sources. +ac_ext=java + +# Object file extension for compiled Java test sources. +objext=o +_LT_TAGVAR(objext, $1)=$objext + +# Code to be used in simple compile tests +lt_simple_compile_test_code="class foo {}" + +# Code to be used in simple link tests +lt_simple_link_test_code='public class conftest { public static void main(String[[]] argv) {}; }' + +# ltmain only uses $CC for tagged configurations so make sure $CC is set. +_LT_TAG_COMPILER + +# save warnings/boilerplate of simple test code +_LT_COMPILER_BOILERPLATE +_LT_LINKER_BOILERPLATE + +# Allow CC to be a program name with arguments. +lt_save_CC=$CC +lt_save_CFLAGS=$CFLAGS +lt_save_GCC=$GCC +GCC=yes +CC=${GCJ-"gcj"} +CFLAGS=$GCJFLAGS +compiler=$CC +_LT_TAGVAR(compiler, $1)=$CC +_LT_TAGVAR(LD, $1)=$LD +_LT_CC_BASENAME([$compiler]) + +# GCJ did not exist at the time GCC didn't implicitly link libc in. +_LT_TAGVAR(archive_cmds_need_lc, $1)=no + +_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds +_LT_TAGVAR(reload_flag, $1)=$reload_flag +_LT_TAGVAR(reload_cmds, $1)=$reload_cmds + +## CAVEAT EMPTOR: +## There is no encapsulation within the following macros, do not change +## the running order or otherwise move them around unless you know exactly +## what you are doing... +if test -n "$compiler"; then + _LT_COMPILER_NO_RTTI($1) + _LT_COMPILER_PIC($1) + _LT_COMPILER_C_O($1) + _LT_COMPILER_FILE_LOCKS($1) + _LT_LINKER_SHLIBS($1) + _LT_LINKER_HARDCODE_LIBPATH($1) + + _LT_CONFIG($1) +fi + +AC_LANG_RESTORE + +GCC=$lt_save_GCC +CC=$lt_save_CC +CFLAGS=$lt_save_CFLAGS +])# _LT_LANG_GCJ_CONFIG + + +# _LT_LANG_GO_CONFIG([TAG]) +# -------------------------- +# Ensure that the configuration variables for the GNU Go compiler +# are suitably defined. These variables are subsequently used by _LT_CONFIG +# to write the compiler configuration to 'libtool'. +m4_defun([_LT_LANG_GO_CONFIG], +[AC_REQUIRE([LT_PROG_GO])dnl +AC_LANG_SAVE + +# Source file extension for Go test sources. +ac_ext=go + +# Object file extension for compiled Go test sources. +objext=o +_LT_TAGVAR(objext, $1)=$objext + +# Code to be used in simple compile tests +lt_simple_compile_test_code="package main; func main() { }" + +# Code to be used in simple link tests +lt_simple_link_test_code='package main; func main() { }' + +# ltmain only uses $CC for tagged configurations so make sure $CC is set. +_LT_TAG_COMPILER + +# save warnings/boilerplate of simple test code +_LT_COMPILER_BOILERPLATE +_LT_LINKER_BOILERPLATE + +# Allow CC to be a program name with arguments. +lt_save_CC=$CC +lt_save_CFLAGS=$CFLAGS +lt_save_GCC=$GCC +GCC=yes +CC=${GOC-"gccgo"} +CFLAGS=$GOFLAGS +compiler=$CC +_LT_TAGVAR(compiler, $1)=$CC +_LT_TAGVAR(LD, $1)=$LD +_LT_CC_BASENAME([$compiler]) + +# Go did not exist at the time GCC didn't implicitly link libc in. +_LT_TAGVAR(archive_cmds_need_lc, $1)=no + +_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds +_LT_TAGVAR(reload_flag, $1)=$reload_flag +_LT_TAGVAR(reload_cmds, $1)=$reload_cmds + +## CAVEAT EMPTOR: +## There is no encapsulation within the following macros, do not change +## the running order or otherwise move them around unless you know exactly +## what you are doing... +if test -n "$compiler"; then + _LT_COMPILER_NO_RTTI($1) + _LT_COMPILER_PIC($1) + _LT_COMPILER_C_O($1) + _LT_COMPILER_FILE_LOCKS($1) + _LT_LINKER_SHLIBS($1) + _LT_LINKER_HARDCODE_LIBPATH($1) + + _LT_CONFIG($1) +fi + +AC_LANG_RESTORE + +GCC=$lt_save_GCC +CC=$lt_save_CC +CFLAGS=$lt_save_CFLAGS +])# _LT_LANG_GO_CONFIG + + +# _LT_LANG_RC_CONFIG([TAG]) +# ------------------------- +# Ensure that the configuration variables for the Windows resource compiler +# are suitably defined. These variables are subsequently used by _LT_CONFIG +# to write the compiler configuration to 'libtool'. +m4_defun([_LT_LANG_RC_CONFIG], +[AC_REQUIRE([LT_PROG_RC])dnl +AC_LANG_SAVE + +# Source file extension for RC test sources. +ac_ext=rc + +# Object file extension for compiled RC test sources. +objext=o +_LT_TAGVAR(objext, $1)=$objext + +# Code to be used in simple compile tests +lt_simple_compile_test_code='sample MENU { MENUITEM "&Soup", 100, CHECKED }' + +# Code to be used in simple link tests +lt_simple_link_test_code=$lt_simple_compile_test_code + +# ltmain only uses $CC for tagged configurations so make sure $CC is set. +_LT_TAG_COMPILER + +# save warnings/boilerplate of simple test code +_LT_COMPILER_BOILERPLATE +_LT_LINKER_BOILERPLATE + +# Allow CC to be a program name with arguments. +lt_save_CC=$CC +lt_save_CFLAGS=$CFLAGS +lt_save_GCC=$GCC +GCC= +CC=${RC-"windres"} +CFLAGS= +compiler=$CC +_LT_TAGVAR(compiler, $1)=$CC +_LT_CC_BASENAME([$compiler]) +_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=yes + +if test -n "$compiler"; then + : + _LT_CONFIG($1) +fi + +GCC=$lt_save_GCC +AC_LANG_RESTORE +CC=$lt_save_CC +CFLAGS=$lt_save_CFLAGS +])# _LT_LANG_RC_CONFIG + + +# LT_PROG_GCJ +# ----------- +AC_DEFUN([LT_PROG_GCJ], +[m4_ifdef([AC_PROG_GCJ], [AC_PROG_GCJ], + [m4_ifdef([A][M_PROG_GCJ], [A][M_PROG_GCJ], + [AC_CHECK_TOOL(GCJ, gcj,) + test set = "${GCJFLAGS+set}" || GCJFLAGS="-g -O2" + AC_SUBST(GCJFLAGS)])])[]dnl +]) + +# Old name: +AU_ALIAS([LT_AC_PROG_GCJ], [LT_PROG_GCJ]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([LT_AC_PROG_GCJ], []) + + +# LT_PROG_GO +# ---------- +AC_DEFUN([LT_PROG_GO], +[AC_CHECK_TOOL(GOC, gccgo,) +]) + + +# LT_PROG_RC +# ---------- +AC_DEFUN([LT_PROG_RC], +[AC_CHECK_TOOL(RC, windres,) +]) + +# Old name: +AU_ALIAS([LT_AC_PROG_RC], [LT_PROG_RC]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([LT_AC_PROG_RC], []) + + +# _LT_DECL_EGREP +# -------------- +# If we don't have a new enough Autoconf to choose the best grep +# available, choose the one first in the user's PATH. +m4_defun([_LT_DECL_EGREP], +[AC_REQUIRE([AC_PROG_EGREP])dnl +AC_REQUIRE([AC_PROG_FGREP])dnl +test -z "$GREP" && GREP=grep +_LT_DECL([], [GREP], [1], [A grep program that handles long lines]) +_LT_DECL([], [EGREP], [1], [An ERE matcher]) +_LT_DECL([], [FGREP], [1], [A literal string matcher]) +dnl Non-bleeding-edge autoconf doesn't subst GREP, so do it here too +AC_SUBST([GREP]) +]) + + +# _LT_DECL_OBJDUMP +# -------------- +# If we don't have a new enough Autoconf to choose the best objdump +# available, choose the one first in the user's PATH. +m4_defun([_LT_DECL_OBJDUMP], +[AC_CHECK_TOOL(OBJDUMP, objdump, false) +test -z "$OBJDUMP" && OBJDUMP=objdump +_LT_DECL([], [OBJDUMP], [1], [An object symbol dumper]) +AC_SUBST([OBJDUMP]) +]) + +# _LT_DECL_DLLTOOL +# ---------------- +# Ensure DLLTOOL variable is set. +m4_defun([_LT_DECL_DLLTOOL], +[AC_CHECK_TOOL(DLLTOOL, dlltool, false) +test -z "$DLLTOOL" && DLLTOOL=dlltool +_LT_DECL([], [DLLTOOL], [1], [DLL creation program]) +AC_SUBST([DLLTOOL]) +]) + +# _LT_DECL_SED +# ------------ +# Check for a fully-functional sed program, that truncates +# as few characters as possible. Prefer GNU sed if found. +m4_defun([_LT_DECL_SED], +[AC_PROG_SED +test -z "$SED" && SED=sed +Xsed="$SED -e 1s/^X//" +_LT_DECL([], [SED], [1], [A sed program that does not truncate output]) +_LT_DECL([], [Xsed], ["\$SED -e 1s/^X//"], + [Sed that helps us avoid accidentally triggering echo(1) options like -n]) +])# _LT_DECL_SED + +m4_ifndef([AC_PROG_SED], [ +############################################################ +# NOTE: This macro has been submitted for inclusion into # +# GNU Autoconf as AC_PROG_SED. When it is available in # +# a released version of Autoconf we should remove this # +# macro and use it instead. # +############################################################ + +m4_defun([AC_PROG_SED], +[AC_MSG_CHECKING([for a sed that does not truncate output]) +AC_CACHE_VAL(lt_cv_path_SED, +[# Loop through the user's path and test for sed and gsed. +# Then use that list of sed's as ones to test for truncation. +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for lt_ac_prog in sed gsed; do + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$lt_ac_prog$ac_exec_ext"; then + lt_ac_sed_list="$lt_ac_sed_list $as_dir/$lt_ac_prog$ac_exec_ext" + fi + done + done +done +IFS=$as_save_IFS +lt_ac_max=0 +lt_ac_count=0 +# Add /usr/xpg4/bin/sed as it is typically found on Solaris +# along with /bin/sed that truncates output. +for lt_ac_sed in $lt_ac_sed_list /usr/xpg4/bin/sed; do + test ! -f "$lt_ac_sed" && continue + cat /dev/null > conftest.in + lt_ac_count=0 + echo $ECHO_N "0123456789$ECHO_C" >conftest.in + # Check for GNU sed and select it if it is found. + if "$lt_ac_sed" --version 2>&1 < /dev/null | grep 'GNU' > /dev/null; then + lt_cv_path_SED=$lt_ac_sed + break + fi + while true; do + cat conftest.in conftest.in >conftest.tmp + mv conftest.tmp conftest.in + cp conftest.in conftest.nl + echo >>conftest.nl + $lt_ac_sed -e 's/a$//' < conftest.nl >conftest.out || break + cmp -s conftest.out conftest.nl || break + # 10000 chars as input seems more than enough + test 10 -lt "$lt_ac_count" && break + lt_ac_count=`expr $lt_ac_count + 1` + if test "$lt_ac_count" -gt "$lt_ac_max"; then + lt_ac_max=$lt_ac_count + lt_cv_path_SED=$lt_ac_sed + fi + done +done +]) +SED=$lt_cv_path_SED +AC_SUBST([SED]) +AC_MSG_RESULT([$SED]) +])#AC_PROG_SED +])#m4_ifndef + +# Old name: +AU_ALIAS([LT_AC_PROG_SED], [AC_PROG_SED]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([LT_AC_PROG_SED], []) + + +# _LT_CHECK_SHELL_FEATURES +# ------------------------ +# Find out whether the shell is Bourne or XSI compatible, +# or has some other useful features. +m4_defun([_LT_CHECK_SHELL_FEATURES], +[if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then + lt_unset=unset +else + lt_unset=false +fi +_LT_DECL([], [lt_unset], [0], [whether the shell understands "unset"])dnl + +# test EBCDIC or ASCII +case `echo X|tr X '\101'` in + A) # ASCII based system + # \n is not interpreted correctly by Solaris 8 /usr/ucb/tr + lt_SP2NL='tr \040 \012' + lt_NL2SP='tr \015\012 \040\040' + ;; + *) # EBCDIC based system + lt_SP2NL='tr \100 \n' + lt_NL2SP='tr \r\n \100\100' + ;; +esac +_LT_DECL([SP2NL], [lt_SP2NL], [1], [turn spaces into newlines])dnl +_LT_DECL([NL2SP], [lt_NL2SP], [1], [turn newlines into spaces])dnl +])# _LT_CHECK_SHELL_FEATURES + + +# _LT_PATH_CONVERSION_FUNCTIONS +# ----------------------------- +# Determine what file name conversion functions should be used by +# func_to_host_file (and, implicitly, by func_to_host_path). These are needed +# for certain cross-compile configurations and native mingw. +m4_defun([_LT_PATH_CONVERSION_FUNCTIONS], +[AC_REQUIRE([AC_CANONICAL_HOST])dnl +AC_REQUIRE([AC_CANONICAL_BUILD])dnl +AC_MSG_CHECKING([how to convert $build file names to $host format]) +AC_CACHE_VAL(lt_cv_to_host_file_cmd, +[case $host in + *-*-mingw* ) + case $build in + *-*-mingw* ) # actually msys + lt_cv_to_host_file_cmd=func_convert_file_msys_to_w32 + ;; + *-*-cygwin* ) + lt_cv_to_host_file_cmd=func_convert_file_cygwin_to_w32 + ;; + * ) # otherwise, assume *nix + lt_cv_to_host_file_cmd=func_convert_file_nix_to_w32 + ;; + esac + ;; + *-*-cygwin* ) + case $build in + *-*-mingw* ) # actually msys + lt_cv_to_host_file_cmd=func_convert_file_msys_to_cygwin + ;; + *-*-cygwin* ) + lt_cv_to_host_file_cmd=func_convert_file_noop + ;; + * ) # otherwise, assume *nix + lt_cv_to_host_file_cmd=func_convert_file_nix_to_cygwin + ;; + esac + ;; + * ) # unhandled hosts (and "normal" native builds) + lt_cv_to_host_file_cmd=func_convert_file_noop + ;; +esac +]) +to_host_file_cmd=$lt_cv_to_host_file_cmd +AC_MSG_RESULT([$lt_cv_to_host_file_cmd]) +_LT_DECL([to_host_file_cmd], [lt_cv_to_host_file_cmd], + [0], [convert $build file names to $host format])dnl + +AC_MSG_CHECKING([how to convert $build file names to toolchain format]) +AC_CACHE_VAL(lt_cv_to_tool_file_cmd, +[#assume ordinary cross tools, or native build. +lt_cv_to_tool_file_cmd=func_convert_file_noop +case $host in + *-*-mingw* ) + case $build in + *-*-mingw* ) # actually msys + lt_cv_to_tool_file_cmd=func_convert_file_msys_to_w32 + ;; + esac + ;; +esac +]) +to_tool_file_cmd=$lt_cv_to_tool_file_cmd +AC_MSG_RESULT([$lt_cv_to_tool_file_cmd]) +_LT_DECL([to_tool_file_cmd], [lt_cv_to_tool_file_cmd], + [0], [convert $build files to toolchain format])dnl +])# _LT_PATH_CONVERSION_FUNCTIONS diff --git a/m4/ltoptions.m4 b/m4/ltoptions.m4 new file mode 100644 index 0000000..94b0829 --- /dev/null +++ b/m4/ltoptions.m4 @@ -0,0 +1,437 @@ +# Helper functions for option handling. -*- Autoconf -*- +# +# Copyright (C) 2004-2005, 2007-2009, 2011-2015 Free Software +# Foundation, Inc. +# Written by Gary V. Vaughan, 2004 +# +# This file is free software; the Free Software Foundation gives +# unlimited permission to copy and/or distribute it, with or without +# modifications, as long as this notice is preserved. + +# serial 8 ltoptions.m4 + +# This is to help aclocal find these macros, as it can't see m4_define. +AC_DEFUN([LTOPTIONS_VERSION], [m4_if([1])]) + + +# _LT_MANGLE_OPTION(MACRO-NAME, OPTION-NAME) +# ------------------------------------------ +m4_define([_LT_MANGLE_OPTION], +[[_LT_OPTION_]m4_bpatsubst($1__$2, [[^a-zA-Z0-9_]], [_])]) + + +# _LT_SET_OPTION(MACRO-NAME, OPTION-NAME) +# --------------------------------------- +# Set option OPTION-NAME for macro MACRO-NAME, and if there is a +# matching handler defined, dispatch to it. Other OPTION-NAMEs are +# saved as a flag. +m4_define([_LT_SET_OPTION], +[m4_define(_LT_MANGLE_OPTION([$1], [$2]))dnl +m4_ifdef(_LT_MANGLE_DEFUN([$1], [$2]), + _LT_MANGLE_DEFUN([$1], [$2]), + [m4_warning([Unknown $1 option '$2'])])[]dnl +]) + + +# _LT_IF_OPTION(MACRO-NAME, OPTION-NAME, IF-SET, [IF-NOT-SET]) +# ------------------------------------------------------------ +# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise. +m4_define([_LT_IF_OPTION], +[m4_ifdef(_LT_MANGLE_OPTION([$1], [$2]), [$3], [$4])]) + + +# _LT_UNLESS_OPTIONS(MACRO-NAME, OPTION-LIST, IF-NOT-SET) +# ------------------------------------------------------- +# Execute IF-NOT-SET unless all options in OPTION-LIST for MACRO-NAME +# are set. +m4_define([_LT_UNLESS_OPTIONS], +[m4_foreach([_LT_Option], m4_split(m4_normalize([$2])), + [m4_ifdef(_LT_MANGLE_OPTION([$1], _LT_Option), + [m4_define([$0_found])])])[]dnl +m4_ifdef([$0_found], [m4_undefine([$0_found])], [$3 +])[]dnl +]) + + +# _LT_SET_OPTIONS(MACRO-NAME, OPTION-LIST) +# ---------------------------------------- +# OPTION-LIST is a space-separated list of Libtool options associated +# with MACRO-NAME. If any OPTION has a matching handler declared with +# LT_OPTION_DEFINE, dispatch to that macro; otherwise complain about +# the unknown option and exit. +m4_defun([_LT_SET_OPTIONS], +[# Set options +m4_foreach([_LT_Option], m4_split(m4_normalize([$2])), + [_LT_SET_OPTION([$1], _LT_Option)]) + +m4_if([$1],[LT_INIT],[ + dnl + dnl Simply set some default values (i.e off) if boolean options were not + dnl specified: + _LT_UNLESS_OPTIONS([LT_INIT], [dlopen], [enable_dlopen=no + ]) + _LT_UNLESS_OPTIONS([LT_INIT], [win32-dll], [enable_win32_dll=no + ]) + dnl + dnl If no reference was made to various pairs of opposing options, then + dnl we run the default mode handler for the pair. For example, if neither + dnl 'shared' nor 'disable-shared' was passed, we enable building of shared + dnl archives by default: + _LT_UNLESS_OPTIONS([LT_INIT], [shared disable-shared], [_LT_ENABLE_SHARED]) + _LT_UNLESS_OPTIONS([LT_INIT], [static disable-static], [_LT_ENABLE_STATIC]) + _LT_UNLESS_OPTIONS([LT_INIT], [pic-only no-pic], [_LT_WITH_PIC]) + _LT_UNLESS_OPTIONS([LT_INIT], [fast-install disable-fast-install], + [_LT_ENABLE_FAST_INSTALL]) + _LT_UNLESS_OPTIONS([LT_INIT], [aix-soname=aix aix-soname=both aix-soname=svr4], + [_LT_WITH_AIX_SONAME([aix])]) + ]) +])# _LT_SET_OPTIONS + + +## --------------------------------- ## +## Macros to handle LT_INIT options. ## +## --------------------------------- ## + +# _LT_MANGLE_DEFUN(MACRO-NAME, OPTION-NAME) +# ----------------------------------------- +m4_define([_LT_MANGLE_DEFUN], +[[_LT_OPTION_DEFUN_]m4_bpatsubst(m4_toupper([$1__$2]), [[^A-Z0-9_]], [_])]) + + +# LT_OPTION_DEFINE(MACRO-NAME, OPTION-NAME, CODE) +# ----------------------------------------------- +m4_define([LT_OPTION_DEFINE], +[m4_define(_LT_MANGLE_DEFUN([$1], [$2]), [$3])[]dnl +])# LT_OPTION_DEFINE + + +# dlopen +# ------ +LT_OPTION_DEFINE([LT_INIT], [dlopen], [enable_dlopen=yes +]) + +AU_DEFUN([AC_LIBTOOL_DLOPEN], +[_LT_SET_OPTION([LT_INIT], [dlopen]) +AC_DIAGNOSE([obsolete], +[$0: Remove this warning and the call to _LT_SET_OPTION when you +put the 'dlopen' option into LT_INIT's first parameter.]) +]) + +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_DLOPEN], []) + + +# win32-dll +# --------- +# Declare package support for building win32 dll's. +LT_OPTION_DEFINE([LT_INIT], [win32-dll], +[enable_win32_dll=yes + +case $host in +*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-cegcc*) + AC_CHECK_TOOL(AS, as, false) + AC_CHECK_TOOL(DLLTOOL, dlltool, false) + AC_CHECK_TOOL(OBJDUMP, objdump, false) + ;; +esac + +test -z "$AS" && AS=as +_LT_DECL([], [AS], [1], [Assembler program])dnl + +test -z "$DLLTOOL" && DLLTOOL=dlltool +_LT_DECL([], [DLLTOOL], [1], [DLL creation program])dnl + +test -z "$OBJDUMP" && OBJDUMP=objdump +_LT_DECL([], [OBJDUMP], [1], [Object dumper program])dnl +])# win32-dll + +AU_DEFUN([AC_LIBTOOL_WIN32_DLL], +[AC_REQUIRE([AC_CANONICAL_HOST])dnl +_LT_SET_OPTION([LT_INIT], [win32-dll]) +AC_DIAGNOSE([obsolete], +[$0: Remove this warning and the call to _LT_SET_OPTION when you +put the 'win32-dll' option into LT_INIT's first parameter.]) +]) + +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_WIN32_DLL], []) + + +# _LT_ENABLE_SHARED([DEFAULT]) +# ---------------------------- +# implement the --enable-shared flag, and supports the 'shared' and +# 'disable-shared' LT_INIT options. +# DEFAULT is either 'yes' or 'no'. If omitted, it defaults to 'yes'. +m4_define([_LT_ENABLE_SHARED], +[m4_define([_LT_ENABLE_SHARED_DEFAULT], [m4_if($1, no, no, yes)])dnl +AC_ARG_ENABLE([shared], + [AS_HELP_STRING([--enable-shared@<:@=PKGS@:>@], + [build shared libraries @<:@default=]_LT_ENABLE_SHARED_DEFAULT[@:>@])], + [p=${PACKAGE-default} + case $enableval in + yes) enable_shared=yes ;; + no) enable_shared=no ;; + *) + enable_shared=no + # Look at the argument we got. We use all the common list separators. + lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR, + for pkg in $enableval; do + IFS=$lt_save_ifs + if test "X$pkg" = "X$p"; then + enable_shared=yes + fi + done + IFS=$lt_save_ifs + ;; + esac], + [enable_shared=]_LT_ENABLE_SHARED_DEFAULT) + + _LT_DECL([build_libtool_libs], [enable_shared], [0], + [Whether or not to build shared libraries]) +])# _LT_ENABLE_SHARED + +LT_OPTION_DEFINE([LT_INIT], [shared], [_LT_ENABLE_SHARED([yes])]) +LT_OPTION_DEFINE([LT_INIT], [disable-shared], [_LT_ENABLE_SHARED([no])]) + +# Old names: +AC_DEFUN([AC_ENABLE_SHARED], +[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[shared]) +]) + +AC_DEFUN([AC_DISABLE_SHARED], +[_LT_SET_OPTION([LT_INIT], [disable-shared]) +]) + +AU_DEFUN([AM_ENABLE_SHARED], [AC_ENABLE_SHARED($@)]) +AU_DEFUN([AM_DISABLE_SHARED], [AC_DISABLE_SHARED($@)]) + +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AM_ENABLE_SHARED], []) +dnl AC_DEFUN([AM_DISABLE_SHARED], []) + + + +# _LT_ENABLE_STATIC([DEFAULT]) +# ---------------------------- +# implement the --enable-static flag, and support the 'static' and +# 'disable-static' LT_INIT options. +# DEFAULT is either 'yes' or 'no'. If omitted, it defaults to 'yes'. +m4_define([_LT_ENABLE_STATIC], +[m4_define([_LT_ENABLE_STATIC_DEFAULT], [m4_if($1, no, no, yes)])dnl +AC_ARG_ENABLE([static], + [AS_HELP_STRING([--enable-static@<:@=PKGS@:>@], + [build static libraries @<:@default=]_LT_ENABLE_STATIC_DEFAULT[@:>@])], + [p=${PACKAGE-default} + case $enableval in + yes) enable_static=yes ;; + no) enable_static=no ;; + *) + enable_static=no + # Look at the argument we got. We use all the common list separators. + lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR, + for pkg in $enableval; do + IFS=$lt_save_ifs + if test "X$pkg" = "X$p"; then + enable_static=yes + fi + done + IFS=$lt_save_ifs + ;; + esac], + [enable_static=]_LT_ENABLE_STATIC_DEFAULT) + + _LT_DECL([build_old_libs], [enable_static], [0], + [Whether or not to build static libraries]) +])# _LT_ENABLE_STATIC + +LT_OPTION_DEFINE([LT_INIT], [static], [_LT_ENABLE_STATIC([yes])]) +LT_OPTION_DEFINE([LT_INIT], [disable-static], [_LT_ENABLE_STATIC([no])]) + +# Old names: +AC_DEFUN([AC_ENABLE_STATIC], +[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[static]) +]) + +AC_DEFUN([AC_DISABLE_STATIC], +[_LT_SET_OPTION([LT_INIT], [disable-static]) +]) + +AU_DEFUN([AM_ENABLE_STATIC], [AC_ENABLE_STATIC($@)]) +AU_DEFUN([AM_DISABLE_STATIC], [AC_DISABLE_STATIC($@)]) + +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AM_ENABLE_STATIC], []) +dnl AC_DEFUN([AM_DISABLE_STATIC], []) + + + +# _LT_ENABLE_FAST_INSTALL([DEFAULT]) +# ---------------------------------- +# implement the --enable-fast-install flag, and support the 'fast-install' +# and 'disable-fast-install' LT_INIT options. +# DEFAULT is either 'yes' or 'no'. If omitted, it defaults to 'yes'. +m4_define([_LT_ENABLE_FAST_INSTALL], +[m4_define([_LT_ENABLE_FAST_INSTALL_DEFAULT], [m4_if($1, no, no, yes)])dnl +AC_ARG_ENABLE([fast-install], + [AS_HELP_STRING([--enable-fast-install@<:@=PKGS@:>@], + [optimize for fast installation @<:@default=]_LT_ENABLE_FAST_INSTALL_DEFAULT[@:>@])], + [p=${PACKAGE-default} + case $enableval in + yes) enable_fast_install=yes ;; + no) enable_fast_install=no ;; + *) + enable_fast_install=no + # Look at the argument we got. We use all the common list separators. + lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR, + for pkg in $enableval; do + IFS=$lt_save_ifs + if test "X$pkg" = "X$p"; then + enable_fast_install=yes + fi + done + IFS=$lt_save_ifs + ;; + esac], + [enable_fast_install=]_LT_ENABLE_FAST_INSTALL_DEFAULT) + +_LT_DECL([fast_install], [enable_fast_install], [0], + [Whether or not to optimize for fast installation])dnl +])# _LT_ENABLE_FAST_INSTALL + +LT_OPTION_DEFINE([LT_INIT], [fast-install], [_LT_ENABLE_FAST_INSTALL([yes])]) +LT_OPTION_DEFINE([LT_INIT], [disable-fast-install], [_LT_ENABLE_FAST_INSTALL([no])]) + +# Old names: +AU_DEFUN([AC_ENABLE_FAST_INSTALL], +[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[fast-install]) +AC_DIAGNOSE([obsolete], +[$0: Remove this warning and the call to _LT_SET_OPTION when you put +the 'fast-install' option into LT_INIT's first parameter.]) +]) + +AU_DEFUN([AC_DISABLE_FAST_INSTALL], +[_LT_SET_OPTION([LT_INIT], [disable-fast-install]) +AC_DIAGNOSE([obsolete], +[$0: Remove this warning and the call to _LT_SET_OPTION when you put +the 'disable-fast-install' option into LT_INIT's first parameter.]) +]) + +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_ENABLE_FAST_INSTALL], []) +dnl AC_DEFUN([AM_DISABLE_FAST_INSTALL], []) + + +# _LT_WITH_AIX_SONAME([DEFAULT]) +# ---------------------------------- +# implement the --with-aix-soname flag, and support the `aix-soname=aix' +# and `aix-soname=both' and `aix-soname=svr4' LT_INIT options. DEFAULT +# is either `aix', `both' or `svr4'. If omitted, it defaults to `aix'. +m4_define([_LT_WITH_AIX_SONAME], +[m4_define([_LT_WITH_AIX_SONAME_DEFAULT], [m4_if($1, svr4, svr4, m4_if($1, both, both, aix))])dnl +shared_archive_member_spec= +case $host,$enable_shared in +power*-*-aix[[5-9]]*,yes) + AC_MSG_CHECKING([which variant of shared library versioning to provide]) + AC_ARG_WITH([aix-soname], + [AS_HELP_STRING([--with-aix-soname=aix|svr4|both], + [shared library versioning (aka "SONAME") variant to provide on AIX, @<:@default=]_LT_WITH_AIX_SONAME_DEFAULT[@:>@.])], + [case $withval in + aix|svr4|both) + ;; + *) + AC_MSG_ERROR([Unknown argument to --with-aix-soname]) + ;; + esac + lt_cv_with_aix_soname=$with_aix_soname], + [AC_CACHE_VAL([lt_cv_with_aix_soname], + [lt_cv_with_aix_soname=]_LT_WITH_AIX_SONAME_DEFAULT) + with_aix_soname=$lt_cv_with_aix_soname]) + AC_MSG_RESULT([$with_aix_soname]) + if test aix != "$with_aix_soname"; then + # For the AIX way of multilib, we name the shared archive member + # based on the bitwidth used, traditionally 'shr.o' or 'shr_64.o', + # and 'shr.imp' or 'shr_64.imp', respectively, for the Import File. + # Even when GNU compilers ignore OBJECT_MODE but need '-maix64' flag, + # the AIX toolchain works better with OBJECT_MODE set (default 32). + if test 64 = "${OBJECT_MODE-32}"; then + shared_archive_member_spec=shr_64 + else + shared_archive_member_spec=shr + fi + fi + ;; +*) + with_aix_soname=aix + ;; +esac + +_LT_DECL([], [shared_archive_member_spec], [0], + [Shared archive member basename, for filename based shared library versioning on AIX])dnl +])# _LT_WITH_AIX_SONAME + +LT_OPTION_DEFINE([LT_INIT], [aix-soname=aix], [_LT_WITH_AIX_SONAME([aix])]) +LT_OPTION_DEFINE([LT_INIT], [aix-soname=both], [_LT_WITH_AIX_SONAME([both])]) +LT_OPTION_DEFINE([LT_INIT], [aix-soname=svr4], [_LT_WITH_AIX_SONAME([svr4])]) + + +# _LT_WITH_PIC([MODE]) +# -------------------- +# implement the --with-pic flag, and support the 'pic-only' and 'no-pic' +# LT_INIT options. +# MODE is either 'yes' or 'no'. If omitted, it defaults to 'both'. +m4_define([_LT_WITH_PIC], +[AC_ARG_WITH([pic], + [AS_HELP_STRING([--with-pic@<:@=PKGS@:>@], + [try to use only PIC/non-PIC objects @<:@default=use both@:>@])], + [lt_p=${PACKAGE-default} + case $withval in + yes|no) pic_mode=$withval ;; + *) + pic_mode=default + # Look at the argument we got. We use all the common list separators. + lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR, + for lt_pkg in $withval; do + IFS=$lt_save_ifs + if test "X$lt_pkg" = "X$lt_p"; then + pic_mode=yes + fi + done + IFS=$lt_save_ifs + ;; + esac], + [pic_mode=m4_default([$1], [default])]) + +_LT_DECL([], [pic_mode], [0], [What type of objects to build])dnl +])# _LT_WITH_PIC + +LT_OPTION_DEFINE([LT_INIT], [pic-only], [_LT_WITH_PIC([yes])]) +LT_OPTION_DEFINE([LT_INIT], [no-pic], [_LT_WITH_PIC([no])]) + +# Old name: +AU_DEFUN([AC_LIBTOOL_PICMODE], +[_LT_SET_OPTION([LT_INIT], [pic-only]) +AC_DIAGNOSE([obsolete], +[$0: Remove this warning and the call to _LT_SET_OPTION when you +put the 'pic-only' option into LT_INIT's first parameter.]) +]) + +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_PICMODE], []) + +## ----------------- ## +## LTDL_INIT Options ## +## ----------------- ## + +m4_define([_LTDL_MODE], []) +LT_OPTION_DEFINE([LTDL_INIT], [nonrecursive], + [m4_define([_LTDL_MODE], [nonrecursive])]) +LT_OPTION_DEFINE([LTDL_INIT], [recursive], + [m4_define([_LTDL_MODE], [recursive])]) +LT_OPTION_DEFINE([LTDL_INIT], [subproject], + [m4_define([_LTDL_MODE], [subproject])]) + +m4_define([_LTDL_TYPE], []) +LT_OPTION_DEFINE([LTDL_INIT], [installable], + [m4_define([_LTDL_TYPE], [installable])]) +LT_OPTION_DEFINE([LTDL_INIT], [convenience], + [m4_define([_LTDL_TYPE], [convenience])]) diff --git a/m4/ltsugar.m4 b/m4/ltsugar.m4 new file mode 100644 index 0000000..48bc934 --- /dev/null +++ b/m4/ltsugar.m4 @@ -0,0 +1,124 @@ +# ltsugar.m4 -- libtool m4 base layer. -*-Autoconf-*- +# +# Copyright (C) 2004-2005, 2007-2008, 2011-2015 Free Software +# Foundation, Inc. +# Written by Gary V. Vaughan, 2004 +# +# This file is free software; the Free Software Foundation gives +# unlimited permission to copy and/or distribute it, with or without +# modifications, as long as this notice is preserved. + +# serial 6 ltsugar.m4 + +# This is to help aclocal find these macros, as it can't see m4_define. +AC_DEFUN([LTSUGAR_VERSION], [m4_if([0.1])]) + + +# lt_join(SEP, ARG1, [ARG2...]) +# ----------------------------- +# Produce ARG1SEPARG2...SEPARGn, omitting [] arguments and their +# associated separator. +# Needed until we can rely on m4_join from Autoconf 2.62, since all earlier +# versions in m4sugar had bugs. +m4_define([lt_join], +[m4_if([$#], [1], [], + [$#], [2], [[$2]], + [m4_if([$2], [], [], [[$2]_])$0([$1], m4_shift(m4_shift($@)))])]) +m4_define([_lt_join], +[m4_if([$#$2], [2], [], + [m4_if([$2], [], [], [[$1$2]])$0([$1], m4_shift(m4_shift($@)))])]) + + +# lt_car(LIST) +# lt_cdr(LIST) +# ------------ +# Manipulate m4 lists. +# These macros are necessary as long as will still need to support +# Autoconf-2.59, which quotes differently. +m4_define([lt_car], [[$1]]) +m4_define([lt_cdr], +[m4_if([$#], 0, [m4_fatal([$0: cannot be called without arguments])], + [$#], 1, [], + [m4_dquote(m4_shift($@))])]) +m4_define([lt_unquote], $1) + + +# lt_append(MACRO-NAME, STRING, [SEPARATOR]) +# ------------------------------------------ +# Redefine MACRO-NAME to hold its former content plus 'SEPARATOR''STRING'. +# Note that neither SEPARATOR nor STRING are expanded; they are appended +# to MACRO-NAME as is (leaving the expansion for when MACRO-NAME is invoked). +# No SEPARATOR is output if MACRO-NAME was previously undefined (different +# than defined and empty). +# +# This macro is needed until we can rely on Autoconf 2.62, since earlier +# versions of m4sugar mistakenly expanded SEPARATOR but not STRING. +m4_define([lt_append], +[m4_define([$1], + m4_ifdef([$1], [m4_defn([$1])[$3]])[$2])]) + + + +# lt_combine(SEP, PREFIX-LIST, INFIX, SUFFIX1, [SUFFIX2...]) +# ---------------------------------------------------------- +# Produce a SEP delimited list of all paired combinations of elements of +# PREFIX-LIST with SUFFIX1 through SUFFIXn. Each element of the list +# has the form PREFIXmINFIXSUFFIXn. +# Needed until we can rely on m4_combine added in Autoconf 2.62. +m4_define([lt_combine], +[m4_if(m4_eval([$# > 3]), [1], + [m4_pushdef([_Lt_sep], [m4_define([_Lt_sep], m4_defn([lt_car]))])]]dnl +[[m4_foreach([_Lt_prefix], [$2], + [m4_foreach([_Lt_suffix], + ]m4_dquote(m4_dquote(m4_shift(m4_shift(m4_shift($@)))))[, + [_Lt_sep([$1])[]m4_defn([_Lt_prefix])[$3]m4_defn([_Lt_suffix])])])])]) + + +# lt_if_append_uniq(MACRO-NAME, VARNAME, [SEPARATOR], [UNIQ], [NOT-UNIQ]) +# ----------------------------------------------------------------------- +# Iff MACRO-NAME does not yet contain VARNAME, then append it (delimited +# by SEPARATOR if supplied) and expand UNIQ, else NOT-UNIQ. +m4_define([lt_if_append_uniq], +[m4_ifdef([$1], + [m4_if(m4_index([$3]m4_defn([$1])[$3], [$3$2$3]), [-1], + [lt_append([$1], [$2], [$3])$4], + [$5])], + [lt_append([$1], [$2], [$3])$4])]) + + +# lt_dict_add(DICT, KEY, VALUE) +# ----------------------------- +m4_define([lt_dict_add], +[m4_define([$1($2)], [$3])]) + + +# lt_dict_add_subkey(DICT, KEY, SUBKEY, VALUE) +# -------------------------------------------- +m4_define([lt_dict_add_subkey], +[m4_define([$1($2:$3)], [$4])]) + + +# lt_dict_fetch(DICT, KEY, [SUBKEY]) +# ---------------------------------- +m4_define([lt_dict_fetch], +[m4_ifval([$3], + m4_ifdef([$1($2:$3)], [m4_defn([$1($2:$3)])]), + m4_ifdef([$1($2)], [m4_defn([$1($2)])]))]) + + +# lt_if_dict_fetch(DICT, KEY, [SUBKEY], VALUE, IF-TRUE, [IF-FALSE]) +# ----------------------------------------------------------------- +m4_define([lt_if_dict_fetch], +[m4_if(lt_dict_fetch([$1], [$2], [$3]), [$4], + [$5], + [$6])]) + + +# lt_dict_filter(DICT, [SUBKEY], VALUE, [SEPARATOR], KEY, [...]) +# -------------------------------------------------------------- +m4_define([lt_dict_filter], +[m4_if([$5], [], [], + [lt_join(m4_quote(m4_default([$4], [[, ]])), + lt_unquote(m4_split(m4_normalize(m4_foreach(_Lt_key, lt_car([m4_shiftn(4, $@)]), + [lt_if_dict_fetch([$1], _Lt_key, [$2], [$3], [_Lt_key ])])))))])[]dnl +]) diff --git a/m4/ltversion.m4 b/m4/ltversion.m4 new file mode 100644 index 0000000..fa04b52 --- /dev/null +++ b/m4/ltversion.m4 @@ -0,0 +1,23 @@ +# ltversion.m4 -- version numbers -*- Autoconf -*- +# +# Copyright (C) 2004, 2011-2015 Free Software Foundation, Inc. +# Written by Scott James Remnant, 2004 +# +# This file is free software; the Free Software Foundation gives +# unlimited permission to copy and/or distribute it, with or without +# modifications, as long as this notice is preserved. + +# @configure_input@ + +# serial 4179 ltversion.m4 +# This file is part of GNU Libtool + +m4_define([LT_PACKAGE_VERSION], [2.4.6]) +m4_define([LT_PACKAGE_REVISION], [2.4.6]) + +AC_DEFUN([LTVERSION_VERSION], +[macro_version='2.4.6' +macro_revision='2.4.6' +_LT_DECL(, macro_version, 0, [Which release of libtool.m4 was used?]) +_LT_DECL(, macro_revision, 0) +]) diff --git a/m4/lt~obsolete.m4 b/m4/lt~obsolete.m4 new file mode 100644 index 0000000..c6b26f8 --- /dev/null +++ b/m4/lt~obsolete.m4 @@ -0,0 +1,99 @@ +# lt~obsolete.m4 -- aclocal satisfying obsolete definitions. -*-Autoconf-*- +# +# Copyright (C) 2004-2005, 2007, 2009, 2011-2015 Free Software +# Foundation, Inc. +# Written by Scott James Remnant, 2004. +# +# This file is free software; the Free Software Foundation gives +# unlimited permission to copy and/or distribute it, with or without +# modifications, as long as this notice is preserved. + +# serial 5 lt~obsolete.m4 + +# These exist entirely to fool aclocal when bootstrapping libtool. +# +# In the past libtool.m4 has provided macros via AC_DEFUN (or AU_DEFUN), +# which have later been changed to m4_define as they aren't part of the +# exported API, or moved to Autoconf or Automake where they belong. +# +# The trouble is, aclocal is a bit thick. It'll see the old AC_DEFUN +# in /usr/share/aclocal/libtool.m4 and remember it, then when it sees us +# using a macro with the same name in our local m4/libtool.m4 it'll +# pull the old libtool.m4 in (it doesn't see our shiny new m4_define +# and doesn't know about Autoconf macros at all.) +# +# So we provide this file, which has a silly filename so it's always +# included after everything else. This provides aclocal with the +# AC_DEFUNs it wants, but when m4 processes it, it doesn't do anything +# because those macros already exist, or will be overwritten later. +# We use AC_DEFUN over AU_DEFUN for compatibility with aclocal-1.6. +# +# Anytime we withdraw an AC_DEFUN or AU_DEFUN, remember to add it here. +# Yes, that means every name once taken will need to remain here until +# we give up compatibility with versions before 1.7, at which point +# we need to keep only those names which we still refer to. + +# This is to help aclocal find these macros, as it can't see m4_define. +AC_DEFUN([LTOBSOLETE_VERSION], [m4_if([1])]) + +m4_ifndef([AC_LIBTOOL_LINKER_OPTION], [AC_DEFUN([AC_LIBTOOL_LINKER_OPTION])]) +m4_ifndef([AC_PROG_EGREP], [AC_DEFUN([AC_PROG_EGREP])]) +m4_ifndef([_LT_AC_PROG_ECHO_BACKSLASH], [AC_DEFUN([_LT_AC_PROG_ECHO_BACKSLASH])]) +m4_ifndef([_LT_AC_SHELL_INIT], [AC_DEFUN([_LT_AC_SHELL_INIT])]) +m4_ifndef([_LT_AC_SYS_LIBPATH_AIX], [AC_DEFUN([_LT_AC_SYS_LIBPATH_AIX])]) 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[AC_DEFUN([_LT_AC_LANG_CXX_CONFIG])]) +m4_ifndef([AC_LIBTOOL_LANG_F77_CONFIG], [AC_DEFUN([AC_LIBTOOL_LANG_F77_CONFIG])]) +m4_ifndef([_LT_AC_LANG_F77_CONFIG], [AC_DEFUN([_LT_AC_LANG_F77_CONFIG])]) +m4_ifndef([AC_LIBTOOL_LANG_GCJ_CONFIG], [AC_DEFUN([AC_LIBTOOL_LANG_GCJ_CONFIG])]) +m4_ifndef([_LT_AC_LANG_GCJ_CONFIG], [AC_DEFUN([_LT_AC_LANG_GCJ_CONFIG])]) +m4_ifndef([AC_LIBTOOL_LANG_RC_CONFIG], [AC_DEFUN([AC_LIBTOOL_LANG_RC_CONFIG])]) +m4_ifndef([_LT_AC_LANG_RC_CONFIG], [AC_DEFUN([_LT_AC_LANG_RC_CONFIG])]) +m4_ifndef([AC_LIBTOOL_CONFIG], [AC_DEFUN([AC_LIBTOOL_CONFIG])]) +m4_ifndef([_LT_AC_FILE_LTDLL_C], [AC_DEFUN([_LT_AC_FILE_LTDLL_C])]) +m4_ifndef([_LT_REQUIRED_DARWIN_CHECKS], [AC_DEFUN([_LT_REQUIRED_DARWIN_CHECKS])]) +m4_ifndef([_LT_AC_PROG_CXXCPP], [AC_DEFUN([_LT_AC_PROG_CXXCPP])]) +m4_ifndef([_LT_PREPARE_SED_QUOTE_VARS], [AC_DEFUN([_LT_PREPARE_SED_QUOTE_VARS])]) +m4_ifndef([_LT_PROG_ECHO_BACKSLASH], [AC_DEFUN([_LT_PROG_ECHO_BACKSLASH])]) +m4_ifndef([_LT_PROG_F77], [AC_DEFUN([_LT_PROG_F77])]) +m4_ifndef([_LT_PROG_FC], [AC_DEFUN([_LT_PROG_FC])]) +m4_ifndef([_LT_PROG_CXX], [AC_DEFUN([_LT_PROG_CXX])]) diff --git a/m4/ocaml.m4 b/m4/ocaml.m4 new file mode 100644 index 0000000..479f3a8 --- /dev/null +++ b/m4/ocaml.m4 @@ -0,0 +1,240 @@ +dnl autoconf macros for OCaml +dnl +dnl Copyright © 2009 Richard W.M. Jones +dnl Copyright © 2009 Stefano Zacchiroli +dnl Copyright © 2000-2005 Olivier Andrieu +dnl Copyright © 2000-2005 Jean-Christophe Filliâtre +dnl Copyright © 2000-2005 Georges Mariano +dnl +dnl For documentation, please read the ocaml.m4 man page. + +AC_DEFUN([AC_PROG_OCAML], +[dnl + # checking for ocamlc + AC_CHECK_TOOL([OCAMLC],[ocamlc],[no]) + + if test "$OCAMLC" != "no"; then + OCAMLVERSION=`$OCAMLC -v | sed -n -e 's|.*version* *\(.*\)$|\1|p'` + AC_MSG_RESULT([OCaml version is $OCAMLVERSION]) + # If OCAMLLIB is set, use it + if test "$OCAMLLIB" = ""; then + OCAMLLIB=`$OCAMLC -where 2>/dev/null || $OCAMLC -v|tail -1|cut -d ' ' -f 4` + else + AC_MSG_RESULT([OCAMLLIB previously set; preserving it.]) + fi + AC_MSG_RESULT([OCaml library path is $OCAMLLIB]) + + AC_SUBST([OCAMLVERSION]) + AC_SUBST([OCAMLLIB]) + + # checking for ocamlopt + AC_CHECK_TOOL([OCAMLOPT],[ocamlopt],[no]) + OCAMLBEST=byte + if test "$OCAMLOPT" = "no"; then + AC_MSG_WARN([Cannot find ocamlopt; bytecode compilation only.]) + else + TMPVERSION=`$OCAMLOPT -v | sed -n -e 's|.*version* *\(.*\)$|\1|p' ` + if test "$TMPVERSION" != "$OCAMLVERSION" ; then + AC_MSG_RESULT([versions differs from ocamlc; ocamlopt discarded.]) + OCAMLOPT=no + else + OCAMLBEST=opt + fi + fi + + AC_SUBST([OCAMLBEST]) + + # checking for ocamlc.opt + AC_CHECK_TOOL([OCAMLCDOTOPT],[ocamlc.opt],[no]) + if test "$OCAMLCDOTOPT" != "no"; then + TMPVERSION=`$OCAMLCDOTOPT -v | sed -n -e 's|.*version* *\(.*\)$|\1|p' ` + if test "$TMPVERSION" != "$OCAMLVERSION" ; then + AC_MSG_RESULT([versions differs from ocamlc; ocamlc.opt discarded.]) + else + OCAMLC=$OCAMLCDOTOPT + fi + fi + + # checking for ocamlopt.opt + if test "$OCAMLOPT" != "no" ; then + AC_CHECK_TOOL([OCAMLOPTDOTOPT],[ocamlopt.opt],[no]) + if test "$OCAMLOPTDOTOPT" != "no"; then + TMPVERSION=`$OCAMLOPTDOTOPT -v | sed -n -e 's|.*version* *\(.*\)$|\1|p' ` + if test "$TMPVERSION" != "$OCAMLVERSION" ; then + AC_MSG_RESULT([version differs from ocamlc; ocamlopt.opt discarded.]) + else + OCAMLOPT=$OCAMLOPTDOTOPT + fi + fi + fi + + AC_SUBST([OCAMLOPT]) + fi + + AC_SUBST([OCAMLC]) + + # checking for ocaml toplevel + AC_CHECK_TOOL([OCAML],[ocaml],[no]) + + # checking for ocamldep + AC_CHECK_TOOL([OCAMLDEP],[ocamldep],[no]) + + # checking for ocamlmktop + AC_CHECK_TOOL([OCAMLMKTOP],[ocamlmktop],[no]) + + # checking for ocamlmklib + AC_CHECK_TOOL([OCAMLMKLIB],[ocamlmklib],[no]) + + # checking for ocamldoc + AC_CHECK_TOOL([OCAMLDOC],[ocamldoc],[no]) + + # checking for ocamlbuild + AC_CHECK_TOOL([OCAMLBUILD],[ocamlbuild],[no]) +]) + + +AC_DEFUN([AC_PROG_OCAMLLEX], +[dnl + # checking for ocamllex + AC_CHECK_TOOL([OCAMLLEX],[ocamllex],[no]) + if test "$OCAMLLEX" != "no"; then + AC_CHECK_TOOL([OCAMLLEXDOTOPT],[ocamllex.opt],[no]) + if test "$OCAMLLEXDOTOPT" != "no"; then + OCAMLLEX=$OCAMLLEXDOTOPT + fi + fi + AC_SUBST([OCAMLLEX]) +]) + +AC_DEFUN([AC_PROG_OCAMLYACC], +[dnl + AC_CHECK_TOOL([OCAMLYACC],[ocamlyacc],[no]) + AC_SUBST([OCAMLYACC]) +]) + + +AC_DEFUN([AC_PROG_CAMLP4], +[dnl + AC_REQUIRE([AC_PROG_OCAML])dnl + + # checking for camlp4 + AC_CHECK_TOOL([CAMLP4],[camlp4],[no]) + if test "$CAMLP4" != "no"; then + TMPVERSION=`$CAMLP4 -v 2>&1| sed -n -e 's|.*version *\(.*\)$|\1|p'` + if test "$TMPVERSION" != "$OCAMLVERSION" ; then + AC_MSG_RESULT([versions differs from ocamlc]) + CAMLP4=no + fi + fi + AC_SUBST([CAMLP4]) + + # checking for companion tools + AC_CHECK_TOOL([CAMLP4BOOT],[camlp4boot],[no]) + AC_CHECK_TOOL([CAMLP4O],[camlp4o],[no]) + AC_CHECK_TOOL([CAMLP4OF],[camlp4of],[no]) + AC_CHECK_TOOL([CAMLP4OOF],[camlp4oof],[no]) + AC_CHECK_TOOL([CAMLP4ORF],[camlp4orf],[no]) + AC_CHECK_TOOL([CAMLP4PROF],[camlp4prof],[no]) + AC_CHECK_TOOL([CAMLP4R],[camlp4r],[no]) + AC_CHECK_TOOL([CAMLP4RF],[camlp4rf],[no]) + AC_SUBST([CAMLP4BOOT]) + AC_SUBST([CAMLP4O]) + AC_SUBST([CAMLP4OF]) + AC_SUBST([CAMLP4OOF]) + AC_SUBST([CAMLP4ORF]) + AC_SUBST([CAMLP4PROF]) + AC_SUBST([CAMLP4R]) + AC_SUBST([CAMLP4RF]) +]) + + +AC_DEFUN([AC_PROG_FINDLIB], +[dnl + AC_REQUIRE([AC_PROG_OCAML])dnl + + # checking for ocamlfind + AC_CHECK_TOOL([OCAMLFIND],[ocamlfind],[no]) + AC_SUBST([OCAMLFIND]) +]) + + +dnl Thanks to Jim Meyering for working this next bit out for us. +dnl XXX We should define AS_TR_SH if it's not defined already +dnl (eg. for old autoconf). +AC_DEFUN([AC_CHECK_OCAML_PKG], +[dnl + AC_REQUIRE([AC_PROG_FINDLIB])dnl + + AC_MSG_CHECKING([for OCaml findlib package $1]) + + unset found + unset pkg + found=no + for pkg in $1 $2 ; do + if $OCAMLFIND query $pkg >/dev/null 2>/dev/null; then + AC_MSG_RESULT([found]) + AS_TR_SH([OCAML_PKG_$1])=$pkg + found=yes + break + fi + done + if test "$found" = "no" ; then + AC_MSG_RESULT([not found]) + AS_TR_SH([OCAML_PKG_$1])=no + fi + + AC_SUBST(AS_TR_SH([OCAML_PKG_$1])) +]) + + +AC_DEFUN([AC_CHECK_OCAML_MODULE], +[dnl + AC_MSG_CHECKING([for OCaml module $2]) + + cat > conftest.ml <&5 2>&5 ; then + found=yes + break + fi + done + + if test "$found" ; then + AC_MSG_RESULT([$$1]) + else + AC_MSG_RESULT([not found]) + $1=no + fi + AC_SUBST([$1]) +]) + + +dnl XXX Cross-compiling +AC_DEFUN([AC_CHECK_OCAML_WORD_SIZE], +[dnl + AC_REQUIRE([AC_PROG_OCAML])dnl + AC_MSG_CHECKING([for OCaml compiler word size]) + cat > conftest.ml < conftest.ml <, 1996. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program that contains a +# configuration script generated by Autoconf, you may include it under +# the same distribution terms that you use for the rest of that program. + +if test $# -eq 0; then + echo 1>&2 "Try '$0 --help' for more information" + exit 1 +fi + +case $1 in + + --is-lightweight) + # Used by our autoconf macros to check whether the available missing + # script is modern enough. + exit 0 + ;; + + --run) + # Back-compat with the calling convention used by older automake. + shift + ;; + + -h|--h|--he|--hel|--help) + echo "\ +$0 [OPTION]... PROGRAM [ARGUMENT]... + +Run 'PROGRAM [ARGUMENT]...', returning a proper advice when this fails due +to PROGRAM being missing or too old. + +Options: + -h, --help display this help and exit + -v, --version output version information and exit + +Supported PROGRAM values: + aclocal autoconf autoheader autom4te automake makeinfo + bison yacc flex lex help2man + +Version suffixes to PROGRAM as well as the prefixes 'gnu-', 'gnu', and +'g' are ignored when checking the name. + +Send bug reports to ." + exit $? + ;; + + -v|--v|--ve|--ver|--vers|--versi|--versio|--version) + echo "missing $scriptversion (GNU Automake)" + exit $? + ;; + + -*) + echo 1>&2 "$0: unknown '$1' option" + echo 1>&2 "Try '$0 --help' for more information" + exit 1 + ;; + +esac + +# Run the given program, remember its exit status. +"$@"; st=$? + +# If it succeeded, we are done. +test $st -eq 0 && exit 0 + +# Also exit now if we it failed (or wasn't found), and '--version' was +# passed; such an option is passed most likely to detect whether the +# program is present and works. +case $2 in --version|--help) exit $st;; esac + +# Exit code 63 means version mismatch. This often happens when the user +# tries to use an ancient version of a tool on a file that requires a +# minimum version. +if test $st -eq 63; then + msg="probably too old" +elif test $st -eq 127; then + # Program was missing. + msg="missing on your system" +else + # Program was found and executed, but failed. Give up. + exit $st +fi + +perl_URL=https://www.perl.org/ +flex_URL=https://github.com/westes/flex +gnu_software_URL=https://www.gnu.org/software + +program_details () +{ + case $1 in + aclocal|automake) + echo "The '$1' program is part of the GNU Automake package:" + echo "<$gnu_software_URL/automake>" + echo "It also requires GNU Autoconf, GNU m4 and Perl in order to run:" + echo "<$gnu_software_URL/autoconf>" + echo "<$gnu_software_URL/m4/>" + echo "<$perl_URL>" + ;; + autoconf|autom4te|autoheader) + echo "The '$1' program is part of the GNU Autoconf package:" + echo "<$gnu_software_URL/autoconf/>" + echo "It also requires GNU m4 and Perl in order to run:" + echo "<$gnu_software_URL/m4/>" + echo "<$perl_URL>" + ;; + esac +} + +give_advice () +{ + # Normalize program name to check for. + normalized_program=`echo "$1" | sed ' + s/^gnu-//; t + s/^gnu//; t + s/^g//; t'` + + printf '%s\n' "'$1' is $msg." + + configure_deps="'configure.ac' or m4 files included by 'configure.ac'" + case $normalized_program in + autoconf*) + echo "You should only need it if you modified 'configure.ac'," + echo "or m4 files included by it." + program_details 'autoconf' + ;; + autoheader*) + echo "You should only need it if you modified 'acconfig.h' or" + echo "$configure_deps." + program_details 'autoheader' + ;; + automake*) + echo "You should only need it if you modified 'Makefile.am' or" + echo "$configure_deps." + program_details 'automake' + ;; + aclocal*) + echo "You should only need it if you modified 'acinclude.m4' or" + echo "$configure_deps." + program_details 'aclocal' + ;; + autom4te*) + echo "You might have modified some maintainer files that require" + echo "the 'autom4te' program to be rebuilt." + program_details 'autom4te' + ;; + bison*|yacc*) + echo "You should only need it if you modified a '.y' file." + echo "You may want to install the GNU Bison package:" + echo "<$gnu_software_URL/bison/>" + ;; + lex*|flex*) + echo "You should only need it if you modified a '.l' file." + echo "You may want to install the Fast Lexical Analyzer package:" + echo "<$flex_URL>" + ;; + help2man*) + echo "You should only need it if you modified a dependency" \ + "of a man page." + echo "You may want to install the GNU Help2man package:" + echo "<$gnu_software_URL/help2man/>" + ;; + makeinfo*) + echo "You should only need it if you modified a '.texi' file, or" + echo "any other file indirectly affecting the aspect of the manual." + echo "You might want to install the Texinfo package:" + echo "<$gnu_software_URL/texinfo/>" + echo "The spurious makeinfo call might also be the consequence of" + echo "using a buggy 'make' (AIX, DU, IRIX), in which case you might" + echo "want to install GNU make:" + echo "<$gnu_software_URL/make/>" + ;; + *) + echo "You might have modified some files without having the proper" + echo "tools for further handling them. Check the 'README' file, it" + echo "often tells you about the needed prerequisites for installing" + echo "this package. You may also peek at any GNU archive site, in" + echo "case some other package contains this missing '$1' program." + ;; + esac +} + +give_advice "$1" | sed -e '1s/^/WARNING: /' \ + -e '2,$s/^/ /' >&2 + +# Propagate the correct exit status (expected to be 127 for a program +# not found, 63 for a program that failed due to version mismatch). +exit $st + +# Local variables: +# eval: (add-hook 'before-save-hook 'time-stamp) +# time-stamp-start: "scriptversion=" +# time-stamp-format: "%:y-%02m-%02d.%02H" +# time-stamp-time-zone: "UTC0" +# time-stamp-end: "; # UTC" +# End: diff --git a/plugins/Makefile.am b/plugins/Makefile.am new file mode 100644 index 0000000..43a6a88 --- /dev/null +++ b/plugins/Makefile.am @@ -0,0 +1,36 @@ +# nbdkit +# Copyright (C) 2013-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = plugins.syms + +SUBDIRS = $(plugins) diff --git a/plugins/Makefile.in b/plugins/Makefile.in new file mode 100644 index 0000000..7a606ca --- /dev/null +++ b/plugins/Makefile.in @@ -0,0 +1,785 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2013-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# nbdkit +# Copyright (C) 2013-2020 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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install-pdf-am + +install-pdf-am: + +install-ps: install-ps-am + +install-ps-am: + +installcheck-am: + +maintainer-clean: maintainer-clean-am + -rm -f ./$(DEPDIR)/nbdkit_cc_plugin_la-cc.Plo + -rm -f Makefile +maintainer-clean-am: distclean-am maintainer-clean-generic + +mostlyclean: mostlyclean-am + +mostlyclean-am: mostlyclean-compile mostlyclean-generic \ + mostlyclean-libtool + +pdf: pdf-am + +pdf-am: + +ps: ps-am + +ps-am: + +uninstall-am: uninstall-man uninstall-pluginLTLIBRARIES + +uninstall-man: uninstall-man3 + +.MAKE: install-am install-strip + +.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-am clean \ + clean-generic clean-libtool clean-pluginLTLIBRARIES \ + cscopelist-am ctags ctags-am distclean distclean-compile \ + distclean-generic distclean-libtool distclean-tags distdir dvi \ + dvi-am html html-am info info-am install install-am \ + install-data install-data-am install-dvi install-dvi-am \ + install-exec install-exec-am install-html install-html-am \ + install-info install-info-am install-man install-man3 \ + install-pdf install-pdf-am install-pluginLTLIBRARIES \ + install-ps install-ps-am install-strip installcheck \ + installcheck-am installdirs maintainer-clean \ + maintainer-clean-generic mostlyclean mostlyclean-compile \ + mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \ + tags tags-am uninstall uninstall-am uninstall-man \ + uninstall-man3 uninstall-pluginLTLIBRARIES + +.PRECIOUS: Makefile + + +@HAVE_POD_TRUE@nbdkit-cc-plugin.3: nbdkit-cc-plugin.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=3 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/plugins/cc/cc.c b/plugins/cc/cc.c new file mode 100644 index 0000000..807ffcb --- /dev/null +++ b/plugins/cc/cc.c @@ -0,0 +1,592 @@ +/* nbdkit + * Copyright (C) 2018-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include + +#define NBDKIT_API_VERSION 2 +#include + +#include "cleanup.h" +#include "utils.h" +#include "vector.h" + +/* The script name. */ +static char *script; +static bool unlink_on_exit = false; + +/* C compiler and flags. */ +static const char *cc = CC; +static const char *cflags = CFLAGS; +static const char *extra_cflags; + +/* List of parameters for the subplugin. */ +struct key_value { const char *key, *value; }; +DEFINE_VECTOR_TYPE(string_vector, struct key_value); +static string_vector params = empty_vector; + +/* The subplugin. */ +static void *dl; +static struct nbdkit_plugin subplugin; + +static void +cc_unload (void) +{ + if (subplugin.unload) + subplugin.unload (); + + if (unlink_on_exit) + unlink (script); + if (dl) + dlclose (dl); + free (params.ptr); + free (script); +} + +static void +cc_dump_plugin (void) +{ + printf ("CC=%s\n", CC); + printf ("CFLAGS=%s\n", CFLAGS); +} + +#define cc_config_help \ + "[script=] (required) The shell script to run.\n" \ + "CC= C compiler.\n" \ + "CFLAGS= C compiler flags.\n" \ + "EXTRA_CFLAGS= Extra C compiler flags.\n" \ + "[other arguments may be used by the plugin that you load]" + +static char * +inline_script (void) +{ + CLEANUP_FREE char *cmd = NULL; + int fd; + + if (!nbdkit_stdio_safe ()) { + nbdkit_error ("inline script is incompatible with -s"); + return NULL; + } + + script = strdup ("/tmp/ccXXXXXX.c"); + if (script == NULL) { + nbdkit_error ("strdup: %m"); + return NULL; + } + + fd = mkstemps (script, 2); + if (fd == -1) { + nbdkit_error ("mkstemps: %m"); + return NULL; + } + close (fd); + unlink_on_exit = true; + + if (asprintf (&cmd, "cat > %s", script) == -1) { + nbdkit_error ("asprintf: %m"); + return NULL; + } + + if (system (cmd) != 0) { + nbdkit_error ("cc: failed to copy inline script to temporary file"); + return NULL; + } + + return script; +} + +static int +cc_config (const char *key, const char *value) +{ + if (!script) { + /* The first parameter must be "script". */ + if (strcmp (key, "script") != 0) { + nbdkit_error ("cc: the first parameter must be the C file or \"-\""); + return -1; + } + if (strcmp (value, "-") != 0) + script = nbdkit_realpath (value); + else + script = inline_script (); + if (script == NULL) + return -1; + + return 0; + } + else { + /* Although not impossible, it's likely to be a bug if there is a + * further parameter called "script" so disallow it. + */ + if (strcmp (key, "script") == 0) { + nbdkit_error ("cc: script parameter must appear only once"); + return -1; + } + /* Otherwise parse our parameters. */ + else if (strcmp (key, "CC") == 0) + cc = value; + else if (strcmp (key, "CFLAGS") == 0) + cflags = value; + else if (strcmp (key, "EXTRA_CFLAGS") == 0) + extra_cflags = value; + else { + /* Anything else is saved for the subplugin. */ + struct key_value kv = { .key = key, .value = value }; + + if (string_vector_append (¶ms, kv) == -1) { + nbdkit_error ("realloc: %m"); + return -1; + } + } + return 0; + } +} + +/* We must compile and load the subplugin here (not in get_ready) + * because we must find the subplugin's thread model, and the core + * server will query that straight after config_complete. + */ +static int +cc_config_complete (void) +{ + CLEANUP_FREE char *command = NULL; + size_t len = 0, size, i; + FILE *fp; + int fd, r; + char tmpfile[] = "/tmp/ccXXXXXX.so"; + struct nbdkit_plugin *(*plugin_init) (void); + char *error; + const struct nbdkit_plugin *ptr; + + if (!script) { + nbdkit_error ("cc: no C program name (or \"-\") given"); + return -1; + } + + /* Create a temporary file to store the compiled plugin. */ + fd = mkstemps (tmpfile, 3); + if (fd == -1) { + nbdkit_error ("mkstemps: %m"); + return -1; + } + close (fd); + + /* Compile the C program. */ + fp = open_memstream (&command, &len); + if (fp == NULL) { + nbdkit_error ("open_memstream: %m"); + return -1; + } + /* The C compiler and C flags don't need to be quoted. */ + fprintf (fp, "%s %s ", cc, cflags); + if (extra_cflags) + fprintf (fp, "%s ", extra_cflags); + shell_quote (script, fp); + fprintf (fp, " -o "); + shell_quote (tmpfile, fp); + if (fclose (fp) == EOF) { + nbdkit_error ("memstream failed: %m"); + return -1; + } + + nbdkit_debug ("cc: %s", command); + r = system (command); + if (exit_status_to_nbd_error (r, cc) == -1) { + unlink (tmpfile); + return -1; + } + + /* Load the subplugin. */ + dl = dlopen (tmpfile, RTLD_NOW); + unlink (tmpfile); + if (dl == NULL) { + nbdkit_error ("cannot open the compiled plugin: %s", dlerror ()); + return -1; + } + + /* Now we basically behave like core nbdkit when it loads a plugin. */ + dlerror (); + *(void **) (&plugin_init) = dlsym (dl, "plugin_init"); + if ((error = dlerror ()) != NULL) { + nbdkit_error ("no plugin_init symbol found: %s", dlerror ()); + return -1; + } + if (!plugin_init) { + nbdkit_error ("invalid plugin_init symbol"); + return -1; + } + ptr = plugin_init (); + if (!ptr) { + nbdkit_error ("plugin registration failed"); + return -1; + } + + /* Are the APIs compatible? */ + if (ptr->_api_version != NBDKIT_API_VERSION) { + nbdkit_error ("plugin uses the wrong NBDKIT_API_VERSION, it must be %d", + NBDKIT_API_VERSION); + return -1; + } + + /* Copy the subplugins struct into our plugin global, padding or + * truncating as necessary. + */ + size = sizeof subplugin; /* Size of our struct. */ + if (size > ptr->_struct_size) + size = ptr->_struct_size; + memcpy (&subplugin, ptr, size); + + /* Check that the plugin has .open, .get_size and .pread. */ + if (subplugin.open == NULL) { + nbdkit_error ("plugin must have a .open callback"); + return -1; + } + if (subplugin.get_size == NULL) { + nbdkit_error ("plugin must have a .get_size callback"); + return -1; + } + if (subplugin.pread == NULL) { + nbdkit_error ("plugin must have a .pread callback"); + return -1; + } + + /* Now we have to call the subplugin's load, config and + * config_complete. Everything after that will be called via the + * core server through our forwarding functions below. + */ + if (subplugin.load) + subplugin.load (); + if (subplugin.config) { + for (i = 0; i < params.size; ++i) { + if (subplugin.config (params.ptr[i].key, params.ptr[i].value) == -1) + return -1; + } + } + else if (params.size > 0) { + /* Just print the first one in the error message. */ + nbdkit_error ("unknown parameter: %s", params.ptr[0].key); + return -1; + } + if (subplugin.config_complete) { + if (subplugin.config_complete () == -1) + return -1; + } + + return 0; +} + +/* This is adjusted when we load the subplugin. */ +#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL + +/* Set the thread model from the subplugin. */ +static int +cc_thread_model (void) +{ + if (subplugin.thread_model != NULL) + return subplugin.thread_model (); + else + return subplugin._thread_model; +} + +/* All other calls are forwarded to the subplugin. */ +static int +cc_get_ready (void) +{ + if (subplugin.get_ready) + return subplugin.get_ready (); + return 0; +} + +static int +cc_after_fork (void) +{ + if (subplugin.after_fork) + return subplugin.after_fork (); + return 0; +} + +static int +cc_preconnect (int readonly) +{ + if (subplugin.preconnect) + return subplugin.preconnect (readonly); + return 0; +} + +static void * +cc_open (int readonly) +{ + return subplugin.open (readonly); +} + +static void +cc_close (void *handle) +{ + if (subplugin.close) + subplugin.close (handle); +} + +static int64_t +cc_get_size (void *handle) +{ + return subplugin.get_size (handle); +} + +static int +cc_can_write (void *handle) +{ + if (subplugin.can_write) + return subplugin.can_write (handle); + else + return !!subplugin.pwrite; +} + +static int +cc_can_flush (void *handle) +{ + if (subplugin.can_flush) + return subplugin.can_flush (handle); + else + return !!subplugin.flush; +} + +static int +cc_is_rotational (void *handle) +{ + if (subplugin.is_rotational) + return subplugin.is_rotational (handle); + else + return 0; +} + +static int +cc_can_trim (void *handle) +{ + if (subplugin.can_trim) + return subplugin.can_trim (handle); + else + return !!subplugin.trim; +} + +static int +cc_can_zero (void *handle) +{ + if (subplugin.can_zero) + return subplugin.can_zero (handle); + else + return !!subplugin.zero; +} + +static int +cc_can_fast_zero (void *handle) +{ + if (subplugin.can_fast_zero) + return subplugin.can_fast_zero (handle); + else + return 0; +} + +static int +cc_can_extents (void *handle) +{ + if (subplugin.can_extents) + return subplugin.can_extents (handle); + else + return !!subplugin.extents; +} + +static int +cc_can_fua (void *handle) +{ + if (subplugin.can_fua) + return subplugin.can_fua (handle); + else if (cc_can_flush (handle)) + return NBDKIT_FUA_EMULATE; + else + return NBDKIT_FUA_NONE; +} + +static int +cc_can_multi_conn (void *handle) +{ + if (subplugin.can_multi_conn) + return subplugin.can_multi_conn (handle); + else + return 0; +} + +static int +cc_can_cache (void *handle) +{ + if (subplugin.can_cache) + return subplugin.can_cache (handle); + else if (subplugin.cache) + return NBDKIT_CACHE_NATIVE; + else + return NBDKIT_CACHE_NONE; +} + +static int +cc_pread (void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags) +{ + return subplugin.pread (handle, buf, count, offset, flags); +} + +static int +cc_pwrite (void *handle, const void *buf, uint32_t count, uint64_t offset, + uint32_t flags) +{ + if (subplugin.pwrite) + return subplugin.pwrite (handle, buf, count, offset, flags); + else { + nbdkit_error ("missing %s callback", "pwrite"); + errno = EROFS; + return -1; + } +} + +static int +cc_flush (void *handle, uint32_t flags) +{ + if (subplugin.flush) + return subplugin.flush (handle, flags); + else { + nbdkit_error ("missing %s callback", "flush"); + errno = EINVAL; + return -1; + } +} + +static int +cc_trim (void *handle, uint32_t count, uint64_t offset, uint32_t flags) +{ + if (subplugin.trim) + return subplugin.trim (handle, count, offset, flags); + else { + nbdkit_error ("missing %s callback", "trim"); + errno = EINVAL; + return -1; + } +} + +static int +cc_zero (void *handle, uint32_t count, uint64_t offset, uint32_t flags) +{ + if (subplugin.zero) + return subplugin.zero (handle, count, offset, flags); + else { + /* Inform nbdkit to fall back to pwrite. */ + nbdkit_error ("missing %s callback", "zero"); + errno = EOPNOTSUPP; + return -1; + } +} + +static int +cc_extents (void *handle, uint32_t count, uint64_t offset, + uint32_t flags, struct nbdkit_extents *extents) +{ + if (subplugin.extents) + return subplugin.extents (handle, count, offset, flags, extents); + else { + nbdkit_error ("missing %s callback", "extents"); + errno = EINVAL; + return -1; + } +} + +static int +cc_cache (void *handle, uint32_t count, uint64_t offset, uint32_t flags) +{ + if (subplugin.cache) + return subplugin.cache (handle, count, offset, flags); + else + /* A plugin may advertise caching but not provide .cache; in that + * case, caching is explicitly a no-op. + */ + return 0; +} + +static struct nbdkit_plugin plugin = { + .name = "cc", + .longname = "nbdkit C compiler plugin", + .version = PACKAGE_VERSION, + + /* These are the callbacks that this plugin overrides. */ + .unload = cc_unload, + .dump_plugin = cc_dump_plugin, + .config = cc_config, + .config_complete = cc_config_complete, + .config_help = cc_config_help, + .thread_model = cc_thread_model, + + /* And we must provide callbacks for everything else, which are + * passed through to the subplugin. + */ + .get_ready = cc_get_ready, + .after_fork = cc_after_fork, + + .preconnect = cc_preconnect, + .open = cc_open, + .close = cc_close, + + .get_size = cc_get_size, + .can_write = cc_can_write, + .can_flush = cc_can_flush, + .is_rotational = cc_is_rotational, + .can_trim = cc_can_trim, + .can_zero = cc_can_zero, + .can_fast_zero = cc_can_fast_zero, + .can_extents = cc_can_extents, + .can_fua = cc_can_fua, + .can_multi_conn = cc_can_multi_conn, + .can_cache = cc_can_cache, + + .pread = cc_pread, + .pwrite = cc_pwrite, + .flush = cc_flush, + .trim = cc_trim, + .zero = cc_zero, + .extents = cc_extents, + .cache = cc_cache, + + .errno_is_preserved = 1, +}; + +NBDKIT_REGISTER_PLUGIN(plugin) diff --git a/plugins/cc/nbdkit-cc-plugin.pod b/plugins/cc/nbdkit-cc-plugin.pod new file mode 100644 index 0000000..fb6e664 --- /dev/null +++ b/plugins/cc/nbdkit-cc-plugin.pod @@ -0,0 +1,202 @@ +=head1 NAME + +nbdkit-cc-plugin - write small nbdkit plugins in inline C +(and other languages) + +=head1 SYNOPSIS + + nbdkit cc /path/to/plugin.c [CC=] [CFLAGS=] + [EXTRA_CFLAGS=] + nbdkit cc - <<'EOF' + ... C code ... + EOF + +=head1 DESCRIPTION + +This plugin allows you to write small L plugins in C (and +some other languages). When you use this plugin it compiles your +source code to a temporary plugin and then jumps into your compiled +plugin. It is somewhat similar to L, except for +C source code. This can also be used to write plugins which are "C +scripts". + +B this is not the way you normally write nbdkit plugins in C. +To understand how to write plugins in C normally, read +L. + +=head2 Simple plugin example + +Simple plugins from the nbdkit source tree can be compiled and run +directly using commands such as: + + $ nbdkit cc plugins/example1/example1.c EXTRA_CFLAGS="-I. -Iinclude" + +You can also read the source from stdin using C<->: + + $ nbdkit cc - EXTRA_CFLAGS="-I. -Iinclude" \ + < plugins/example1/example1.c + +To replace the compiler flags: + + $ nbdkit cc plugins/example1/example1.c \ + CFLAGS="-O3 -mavx2 -fPIC -shared" + +=head2 Compiler name and flags + +The plugin parameters C, C and C (written in +uppercase) can be used to control which C compiler and C compiler +flags are used. If not set, the default compiler and flags from when +nbdkit was itself compiled from source are used. To see what those +were you can do: + + $ nbdkit cc --dump-plugin + ... + CC=gcc + CFLAGS=-g -O2 -fPIC -shared + +The C parameter overrides the built-in flags completely. The +C parameter adds extra flags to the built-in flags. + +=head2 Plugin API version + +Plugins compiled this way must use the same API version as the cc +plugin itself uses. Currently this is C. + +=head2 C plugin as a self-contained script + +You can create a C plugin which is a self-contained script by adding +the following lines at the top and ensuring the C source is executable +(S>): + + #if 0 + exec nbdkit cc "$0" "$@" + #endif + +The script can be run as a command with additional nbdkit flags and +plugin parameters, eg: + + ./plugin.c -f -v + ./plugin.c -p 10000 --filter=cow + ./plugin.c param=1 + +=head2 Using this plugin with other programming languages + +This plugin can be used with most ahead-of-time compiled programming +languages if they can create shared objects (F<.so> files). The only +requirement is that the compiler (C) supports an I<-o> option to +write a shared object. Some examples follow. + +=head3 Using this plugin with C++ + + nbdkit cc CC=g++ source.cpp + +=head3 Using this plugin with OCaml + + nbdkit cc CC=ocamlopt \ + CFLAGS="-output-obj -runtime-variant _pic NBDKit.cmx -cclib -lnbdkitocaml" \ + source.ml + +See L. + +=head1 PARAMETERS + +The script name, or C<->, must appear as the first parameter. + +=over 4 + +=item BCC + +=item BCFLAGSB<"> + +=item BEXTRA_CFLAGSB<"> + +Override the compiler and flags. See L +above. + +=back + +All other parameters on the command line are passed to the plugin. + +=head1 EXAMPLE + + $ nbdkit cc - <<'EOF' + #include + #include + + #define NBDKIT_API_VERSION 2 + #include + + char data[10*1024*1024]; + + #define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL + + static void * + my_open (int readonly) + { + return NBDKIT_HANDLE_NOT_NEEDED; + } + + static int64_t + my_get_size (void *handle) + { + return (int64_t) sizeof (data); + } + + static int + my_pread (void *handle, void *buf, + uint32_t count, uint64_t offset, + uint32_t flags) + { + memcpy (buf, data+offset, count); + return 0; + } + + static int + my_pwrite (void *handle, const void *buf, + uint32_t count, uint64_t offset, + uint32_t flags) + { + memcpy (data+offset, buf, count); + return 0; + } + + static struct nbdkit_plugin plugin = { + .name = "myplugin", + .open = my_open, + .get_size = my_get_size, + .pread = my_pread, + .pwrite = my_pwrite, + }; + + NBDKIT_REGISTER_PLUGIN(plugin) + EOF + +=head1 FILES + +=over 4 + +=item F<$plugindir/nbdkit-cc-plugin.so> + +The plugin. + +Use C to find the location of C<$plugindir>. + +=back + +=head1 VERSION + +C first appeared in nbdkit 1.22. + +=head1 SEE ALSO + +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2020 Red Hat Inc. diff --git a/plugins/cdi/Makefile.am b/plugins/cdi/Makefile.am new file mode 100644 index 0000000..9ce98d5 --- /dev/null +++ b/plugins/cdi/Makefile.am @@ -0,0 +1,71 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-cdi-plugin.pod + +plugin_LTLIBRARIES = nbdkit-cdi-plugin.la + +nbdkit_cdi_plugin_la_SOURCES = \ + cdi.c \ + $(top_srcdir)/include/nbdkit-plugin.h \ + $(NULL) + +nbdkit_cdi_plugin_la_CPPFLAGS = \ + -I$(top_srcdir)/common/utils \ + -I$(top_srcdir)/include \ + -I. \ + $(NULL) +nbdkit_cdi_plugin_la_CFLAGS = \ + $(WARNINGS_CFLAGS) \ + $(JANSSON_CFLAGS) \ + $(NULL) +nbdkit_cdi_plugin_la_LDFLAGS = \ + -module -avoid-version -shared $(NO_UNDEFINED_ON_WINDOWS) \ + -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms \ + $(NULL) +nbdkit_cdi_plugin_la_LIBADD = \ + $(top_builddir)/common/utils/libutils.la \ + $(JANSSON_LIBS) \ + $(NULL) + +if HAVE_POD + +man_MANS = nbdkit-cdi-plugin.1 +CLEANFILES += $(man_MANS) + +nbdkit-cdi-plugin.1: nbdkit-cdi-plugin.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/plugins/cdi/Makefile.in b/plugins/cdi/Makefile.in new file mode 100644 index 0000000..e85f5a7 --- /dev/null +++ b/plugins/cdi/Makefile.in @@ -0,0 +1,912 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "cleanup.h" +#include "utils.h" + +/* Parameters. */ +static const char *name; /* Name or URI of container image. */ +static int layer = 0; /* Layer (may be negative to count from end). */ + +/* The script that we run to pull and unpack the image. */ +static const char script[] = + /* Exit on errors. */ + "set -e\n" + /* Avoid stdin/stdout leaking (because of nbdkit -s). + * XXX Capture errors to a temporary file. + */ + "exec /dev/null\n" + /* Create a temporary directory to extract the image to. */ + "d=\"$tmpfile.d\"\n" + "podman pull \"$name\"\n" + "podman save --format oci-dir -o \"$d\" \"$name\"\n" + "f=\"$d/$( jq -r \".layers[$layer].digest\" < \"$d/manifest.json\" |\n" + " cut -d: -f2 )\"\n" + "if ! test -f \"$f\"; then\n" + " echo \"cdi: could not extract layer\"\n" + " rm -rf \"$d\"\n" + " exit 1\n" + "fi\n" + "mv \"$f\" \"$tmpfile\"\n" + "rm -rf \"$d\"\n"; + +/* The temporary file. */ +static int fd = -1; + +/* Construct the temporary file. */ +static int +make_layer (void) +{ + const char *tmpdir; + CLEANUP_FREE char *template = NULL; + CLEANUP_FREE char *command = NULL; + size_t command_len = 0; + FILE *fp; + int r; + + /* Path for temporary file. */ + tmpdir = getenv ("TMPDIR"); + if (tmpdir == NULL) + tmpdir = LARGE_TMPDIR; + if (asprintf (&template, "%s/imageXXXXXX", tmpdir) == -1) { + nbdkit_error ("asprintf: %m"); + return -1; + } + + fd = mkstemp (template); + if (fd == -1) { + nbdkit_error ("mkstemp: %s: %m", template); + return -1; + } + + /* Construct the podman script. */ + fp = open_memstream (&command, &command_len); + if (fp == NULL) { + nbdkit_error ("open_memstream: %m"); + return -1; + } + fprintf (fp, "name="); shell_quote (name, fp); putc ('\n', fp); + fprintf (fp, "layer=%d\n", layer); + fprintf (fp, "tmpfile="); shell_quote (template, fp); putc ('\n', fp); + fprintf (fp, "\n"); + fprintf (fp, "%s", script); + if (fclose (fp) == EOF) { + nbdkit_error ("memstream failed: %m"); + return -1; + } + + /* Run the command. */ + nbdkit_debug ("%s", command); + r = system (command); + if (exit_status_to_nbd_error (r, "podman") == -1) + return -1; + + /* Expect that the script creates 'template'. */ + if (access (template, F_OK) != 0) { + nbdkit_error ("internal error: expected %s to be created", template); + return -1; + } + + /* Since the script likely overwrites the file, we need to reopen it. */ + close (fd); + fd = open (template, O_RDONLY|O_CLOEXEC); + if (fd == -1) { + nbdkit_error ("open: %s: %m", template); + unlink (template); + return -1; + } + + /* Since we've opened the file, we can unlink it. */ + unlink (template); + + return 0; +} + +static void +cdi_unload (void) +{ + if (fd >= 0) + close (fd); +} + +static int +cdi_config (const char *key, const char *value) +{ + if (strcmp (key, "name") == 0) + name = value; + else if (strcmp (key, "layer") == 0) { + if (nbdkit_parse_int ("layer", value, &layer) == -1) + return -1; + } + else { + nbdkit_error ("unknown parameter '%s'", key); + return -1; + } + + return 0; +} + +static int +cdi_config_complete (void) +{ + if (name == NULL) { + nbdkit_error ("you must supply the 'name' parameter " + "after the plugin name on the command line"); + return -1; + } + + return 0; +} + +#define cdi_config_help \ + "name=NAME[:TAG|@DIGEST] (required) Name or URI of container image.\n" \ + "layer= Layer of image to export." + +static int +cdi_get_ready (void) +{ + return make_layer (); +} + +static void * +cdi_open (int readonly) +{ + return NBDKIT_HANDLE_NOT_NEEDED; +} + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL + +/* Get the file size. */ +static int64_t +cdi_get_size (void *handle) +{ + struct stat statbuf; + + if (fstat (fd, &statbuf) == -1) { + nbdkit_error ("fstat: %m"); + return -1; + } + + return statbuf.st_size; +} + +/* Serves the same data over multiple connections. */ +static int +cdi_can_multi_conn (void *handle) +{ + return 1; +} + +static int +cdi_can_cache (void *handle) +{ + /* Let nbdkit call pread to populate the file system cache. */ + return NBDKIT_CACHE_EMULATE; +} + +/* Read data from the file. */ +static int +cdi_pread (void *handle, void *buf, uint32_t count, uint64_t offset) +{ + while (count > 0) { + ssize_t r = pread (fd, buf, count, offset); + if (r == -1) { + nbdkit_error ("pread: %m"); + return -1; + } + if (r == 0) { + nbdkit_error ("pread: unexpected end of file"); + return -1; + } + buf += r; + count -= r; + offset += r; + } + + return 0; +} + +static struct nbdkit_plugin plugin = { + .name = "cdi", + .longname = "nbdkit containerized data importer plugin", + .version = PACKAGE_VERSION, + .unload = cdi_unload, + .config = cdi_config, + .config_complete = cdi_config_complete, + .config_help = cdi_config_help, + .magic_config_key = "name", + .get_ready = cdi_get_ready, + .open = cdi_open, + .get_size = cdi_get_size, + .can_multi_conn = cdi_can_multi_conn, + .can_cache = cdi_can_cache, + .pread = cdi_pread, + .errno_is_preserved = 1, +}; + +NBDKIT_REGISTER_PLUGIN(plugin) diff --git a/plugins/cdi/nbdkit-cdi-plugin.pod b/plugins/cdi/nbdkit-cdi-plugin.pod new file mode 100644 index 0000000..0968f6c --- /dev/null +++ b/plugins/cdi/nbdkit-cdi-plugin.pod @@ -0,0 +1,99 @@ +=head1 NAME + +nbdkit-cdi-plugin - export a layer from a container image + +=head1 SYNOPSIS + + nbdkit cdi [name=]NAME[:TAG|@DIGEST] [layer=N] + +=head1 DESCRIPTION + +C (Containerized Data Importer plugin) is a plugin +for L which downloads a container image using +L and makes a single layer available over NBD. The +plugin is essentially a convenient wrapper around L and +L and requires both tools to be installed. + +=head1 EXAMPLES + +Given a Containerized Data Importer (CDI) registry image containing a +VM disk, you can export the whole layer using: + + $ nbdkit cdi docker://kubevirt/fedora-cloud-container-disk-demo + +The layer exported over NBD is a tar file: + + $ nbdcopy nbd://localhost - | file - + -: POSIX tar archive + +To export only the VM disk image in this layer, combine this plugin +with L. In this example when you run L +on the tar entry within the layer it shows that it is a QCOW2 file: + + $ nbdkit cdi docker://kubevirt/fedora-cloud-container-disk-demo \ + --filter=tar tar-entry=./disk/downloaded \ + --run 'nbdcopy "$uri" - | file -' + -: QEMU QCOW2 Image (v2), 4294967296 bytes + +=head1 PARAMETERS + +=over 4 + +=item [B]NAME[:TAG|@DIGEST] + +The name or URI of the container image. This is passed to +L. + +C is a magic config key and may be omitted in most cases. +See L. + +=item BN + +Export the N'th layer (instead of layer 0). + +=back + +=head1 ENVIRONMENT VARIABLES + +=over 4 + +=item C + +A temporary copy of the layer is created in C. If this +environment variable is not set then F is used instead. + +=back + +=head1 FILES + +=over 4 + +=item F<$plugindir/nbdkit-cdi-plugin.so> + +The plugin. + +Use C to find the location of C<$plugindir>. + +=back + +=head1 VERSION + +C first appeared in nbdkit 1.22. + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2020 Red Hat Inc. diff --git a/plugins/curl/Makefile.am b/plugins/curl/Makefile.am new file mode 100644 index 0000000..29183f0 --- /dev/null +++ b/plugins/curl/Makefile.am @@ -0,0 +1,77 @@ +# nbdkit +# Copyright (C) 2014 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-curl-plugin.pod + +if HAVE_CURL + +plugin_LTLIBRARIES = nbdkit-curl-plugin.la + +nbdkit_curl_plugin_la_SOURCES = \ + curldefs.h \ + scripts.c \ + curl.c \ + $(top_srcdir)/include/nbdkit-plugin.h \ + $(NULL) + +nbdkit_curl_plugin_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include \ + -I$(top_srcdir)/common/utils \ + $(NULL) +nbdkit_curl_plugin_la_CFLAGS = \ + $(WARNINGS_CFLAGS) \ + $(CURL_CFLAGS) \ + $(NULL) +nbdkit_curl_plugin_la_LIBADD = \ + $(CURL_LIBS) \ + $(top_builddir)/common/utils/libutils.la \ + $(NULL) +nbdkit_curl_plugin_la_LDFLAGS = \ + -module -avoid-version -shared $(NO_UNDEFINED_ON_WINDOWS) \ + -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms \ + $(NULL) + +if HAVE_POD + +man_MANS = nbdkit-curl-plugin.1 +CLEANFILES += $(man_MANS) + +nbdkit-curl-plugin.1: nbdkit-curl-plugin.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD + +endif diff --git a/plugins/curl/Makefile.in b/plugins/curl/Makefile.in new file mode 100644 index 0000000..acc1d47 --- /dev/null +++ b/plugins/curl/Makefile.in @@ -0,0 +1,931 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2014 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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install-man1 \ + install-pdf install-pdf-am install-pluginLTLIBRARIES \ + install-ps install-ps-am install-strip installcheck \ + installcheck-am installdirs maintainer-clean \ + maintainer-clean-generic mostlyclean mostlyclean-compile \ + mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \ + tags tags-am uninstall uninstall-am uninstall-man \ + uninstall-man1 uninstall-pluginLTLIBRARIES + +.PRECIOUS: Makefile + + +@HAVE_CURL_TRUE@@HAVE_POD_TRUE@nbdkit-curl-plugin.1: nbdkit-curl-plugin.pod +@HAVE_CURL_TRUE@@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_CURL_TRUE@@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_CURL_TRUE@@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/plugins/curl/curl.c b/plugins/curl/curl.c new file mode 100644 index 0000000..8731a50 --- /dev/null +++ b/plugins/curl/curl.c @@ -0,0 +1,818 @@ +/* nbdkit + * Copyright (C) 2014-2020 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include + +#include "ascii-ctype.h" +#include "ascii-string.h" +#include "cleanup.h" + +#include "curldefs.h" + +/* Macro CURL_AT_LEAST_VERSION was added in 2015 (Curl 7.43) so if the + * macro isn't present then Curl is very old. + */ +#ifdef CURL_AT_LEAST_VERSION +#if CURL_AT_LEAST_VERSION(7, 55, 0) +#define HAVE_CURLINFO_CONTENT_LENGTH_DOWNLOAD_T +#endif +#endif + +/* Plugin configuration. */ +const char *url = NULL; /* required */ + +const char *cainfo = NULL; +const char *capath = NULL; +char *cookie = NULL; +const char *cookie_script = NULL; +unsigned cookie_script_renew = 0; +struct curl_slist *headers = NULL; +const char *header_script = NULL; +unsigned header_script_renew = 0; +char *password = NULL; +long protocols = CURLPROTO_ALL; +const char *proxy = NULL; +char *proxy_password = NULL; +const char *proxy_user = NULL; +bool sslverify = true; +bool tcp_keepalive = false; +bool tcp_nodelay = true; +uint32_t timeout = 0; +const char *unix_socket_path = NULL; +const char *user = NULL; +const char *user_agent = NULL; + +/* Use '-D curl.verbose=1' to set. */ +int curl_debug_verbose = 0; + +static void +curl_load (void) +{ + CURLcode r; + + r = curl_global_init (CURL_GLOBAL_DEFAULT); + if (r != CURLE_OK) { + nbdkit_error ("libcurl initialization failed: %d", (int) r); + exit (EXIT_FAILURE); + } +} + +static void +curl_unload (void) +{ + free (cookie); + if (headers) + curl_slist_free_all (headers); + free (password); + free (proxy_password); + scripts_unload (); + curl_global_cleanup (); +} + +/* See */ +static struct { const char *name; long bitmask; } curl_protocols[] = { + { "http", CURLPROTO_HTTP }, + { "https", CURLPROTO_HTTPS }, + { "ftp", CURLPROTO_FTP }, + { "ftps", CURLPROTO_FTPS }, + { "scp", CURLPROTO_SCP }, + { "sftp", CURLPROTO_SFTP }, + { "telnet", CURLPROTO_TELNET }, + { "ldap", CURLPROTO_LDAP }, + { "ldaps", CURLPROTO_LDAPS }, + { "dict", CURLPROTO_DICT }, + { "file", CURLPROTO_FILE }, + { "tftp", CURLPROTO_TFTP }, + { "imap", CURLPROTO_IMAP }, + { "imaps", CURLPROTO_IMAPS }, + { "pop3", CURLPROTO_POP3 }, + { "pop3s", CURLPROTO_POP3S }, + { "smtp", CURLPROTO_SMTP }, + { "smtps", CURLPROTO_SMTPS }, + { "rtsp", CURLPROTO_RTSP }, + { "rtmp", CURLPROTO_RTMP }, + { "rtmpt", CURLPROTO_RTMPT }, + { "rtmpe", CURLPROTO_RTMPE }, + { "rtmpte", CURLPROTO_RTMPTE }, + { "rtmps", CURLPROTO_RTMPS }, + { "rtmpts", CURLPROTO_RTMPTS }, + { "gopher", CURLPROTO_GOPHER }, +#ifdef CURLPROTO_SMB + { "smb", CURLPROTO_SMB }, +#endif +#ifdef CURLPROTO_SMBS + { "smbs", CURLPROTO_SMBS }, +#endif +#ifdef CURLPROTO_MQTT + { "mqtt", CURLPROTO_MQTT }, +#endif + { NULL } +}; + +/* Parse the protocols parameter. */ +static int +parse_protocols (const char *value) +{ + size_t n, i; + + protocols = 0; + + while (*value) { + n = strcspn (value, ","); + for (i = 0; curl_protocols[i].name != NULL; ++i) { + if (strlen (curl_protocols[i].name) == n && + strncmp (value, curl_protocols[i].name, n) == 0) { + protocols |= curl_protocols[i].bitmask; + goto found; + } + } + nbdkit_error ("protocols: protocol name not found: %.*s", (int) n, value); + return -1; + + found: + value += n; + if (*value == ',') + value++; + } + + if (protocols == 0) { + nbdkit_error ("protocols: empty list of protocols is not allowed"); + return -1; + } + + nbdkit_debug ("curl: protocols: %ld", protocols); + + return 0; +} + +/* Called for each key=value passed on the command line. */ +static int +curl_config (const char *key, const char *value) +{ + int r; + + if (strcmp (key, "cainfo") == 0) { + cainfo = value; + } + + else if (strcmp (key, "capath") == 0) { + capath = value; + } + + else if (strcmp (key, "cookie") == 0) { + free (cookie); + if (nbdkit_read_password (value, &cookie) == -1) + return -1; + } + + else if (strcmp (key, "cookie-script") == 0) { + cookie_script = value; + } + + else if (strcmp (key, "cookie-script-renew") == 0) { + if (nbdkit_parse_unsigned ("cookie-script-renew", value, + &cookie_script_renew) == -1) + return -1; + } + + else if (strcmp (key, "header") == 0) { + headers = curl_slist_append (headers, value); + if (headers == NULL) { + nbdkit_error ("curl_slist_append: %m"); + return -1; + } + } + + else if (strcmp (key, "header-script") == 0) { + header_script = value; + } + + else if (strcmp (key, "header-script-renew") == 0) { + if (nbdkit_parse_unsigned ("header-script-renew", value, + &header_script_renew) == -1) + return -1; + } + + else if (strcmp (key, "password") == 0) { + free (password); + if (nbdkit_read_password (value, &password) == -1) + return -1; + } + + else if (strcmp (key, "protocols") == 0) { + if (parse_protocols (value) == -1) + return -1; + } + + else if (strcmp (key, "proxy") == 0) { + proxy = value; + } + + else if (strcmp (key, "proxy-password") == 0) { + free (proxy_password); + if (nbdkit_read_password (value, &proxy_password) == -1) + return -1; + } + + else if (strcmp (key, "proxy-user") == 0) + proxy_user = value; + + else if (strcmp (key, "sslverify") == 0) { + r = nbdkit_parse_bool (value); + if (r == -1) + return -1; + sslverify = r; + } + + else if (strcmp (key, "tcp-keepalive") == 0) { + r = nbdkit_parse_bool (value); + if (r == -1) + return -1; + tcp_keepalive = r; + } + + else if (strcmp (key, "tcp-nodelay") == 0) { + r = nbdkit_parse_bool (value); + if (r == -1) + return -1; + tcp_nodelay = r; + } + + else if (strcmp (key, "timeout") == 0) { + if (nbdkit_parse_uint32_t ("timeout", value, &timeout) == -1) + return -1; +#if LONG_MAX < UINT32_MAX + /* C17 5.2.4.2.1 requires that LONG_MAX is at least 2^31 - 1. + * However a large positive number might still exceed the limit. + */ + if (timeout > LONG_MAX) { + nbdkit_error ("timeout is too large"); + return -1; + } +#endif + } + + else if (strcmp (key, "unix-socket-path") == 0 || + strcmp (key, "unix_socket_path") == 0) + unix_socket_path = value; + + else if (strcmp (key, "url") == 0) + url = value; + + else if (strcmp (key, "user") == 0) + user = value; + + else if (strcmp (key, "user-agent") == 0) + user_agent = value; + + else { + nbdkit_error ("unknown parameter '%s'", key); + return -1; + } + + return 0; +} + +/* Check the user did pass a url parameter. */ +static int +curl_config_complete (void) +{ + if (url == NULL) { + nbdkit_error ("you must supply the url= parameter " + "after the plugin name on the command line"); + return -1; + } + + if (headers && header_script) { + nbdkit_error ("header and header-script cannot be used at the same time"); + return -1; + } + + if (!header_script && header_script_renew) { + nbdkit_error ("header-script-renew cannot be used without header-script"); + return -1; + } + + if (cookie && cookie_script) { + nbdkit_error ("cookie and cookie-script cannot be used at the same time"); + return -1; + } + + if (!cookie_script && cookie_script_renew) { + nbdkit_error ("cookie-script-renew cannot be used without cookie-script"); + return -1; + } + + return 0; +} + +#define curl_config_help \ + "cainfo= Path to Certificate Authority file.\n" \ + "capath= Path to directory with CA certificates.\n" \ + "cookie= Set HTTP/HTTPS cookies.\n" \ + "cookie-script=