From: GNU Libc Maintainers Date: Mon, 13 Jul 2020 19:34:17 +0000 (+0100) Subject: git-updates X-Git-Tag: archive/raspbian/2.31-1+rpi1^2~121 X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=79c90648d1f71ae52f1e56cdfda6d1042d41582a;p=glibc.git git-updates GIT update of https://sourceware.org/git/glibc.git/release/2.31/master from glibc-2.31 GIT update of https://sourceware.org/git/glibc.git/release/2.31/master from glibc-2.31 Gbp-Pq: Name git-updates.diff --- diff --git a/NEWS b/NEWS index 292fbc595..0e2dc3952 100644 --- a/NEWS +++ b/NEWS @@ -4,6 +4,39 @@ See the end for copying conditions. Please send GNU C library bug reports via using `glibc' in the "product" field. + +Version 2.31.1 + +The following bugs are resolved with this release: + [20543] Please move from .gnu.linkonce to comdat + [23296] Data race in setting function descriptor during lazy binding + [25487] sinl() stack corruption from crafted input (CVE-2020-10029) + [25523] MIPS/Linux inline syscall template is miscompiled + [25623] test-sysvmsg, test-sysvsem, test-sysvshm fail with 2.31 on 32 bit and + old kernel + [25635] arm: Wrong sysdep order selection for soft-fp + [25639] localedata: Some names of days and months wrongly spelt in + Occitan + [25715] system() returns wrong errors when posix_spawn fails + [25810] x32: Incorrect syscall entries with pointer, off_t and size_t + [25896] Incorrect prctl + [25902] Bad LOADARGS_N + [25933] Off by one error in __strncmp_avx2 + [25966] Incorrect access of __x86_shared_non_temporal_threshold for x32 + [25976] nss_compat: internal_end*ent may clobber errno, hiding ERANGE + +Security related changes: + + CVE-2020-10029: Trigonometric functions on x86 targets suffered from stack + corruption when they were passed a pseudo-zero argument. Reported by Guido + Vranken / ForAllSecure Mayhem. + + CVE-2020-1751: A defect in the PowerPC backtrace function could cause an + out-of-bounds write when executed in a signal frame context. + + CVE-2020-1752: A use-after-free vulnerability in the glob function when + expanding ~user has been fixed. + Version 2.31 diff --git a/configure b/configure index b959d2d98..3b98ec312 100755 --- a/configure +++ b/configure @@ -4035,7 +4035,7 @@ if ${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS \ -o conftest conftest.S 1>&5 2>&5; then # Do a link to see if the backend supports IFUNC relocs. $READELF -r conftest 1>&5 - LC_ALL=C $READELF -r conftest | grep 'no relocations' >/dev/null || { + LC_ALL=C $READELF -Wr conftest | grep -q 'IRELATIVE\|R_SPARC_JMP_IREL' && { libc_cv_ld_gnu_indirect_function=yes } fi diff --git a/configure.ac b/configure.ac index 49b900c1e..e20034f30 100644 --- a/configure.ac +++ b/configure.ac @@ -649,7 +649,7 @@ if ${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS \ -o conftest conftest.S 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then # Do a link to see if the backend supports IFUNC relocs. $READELF -r conftest 1>&AS_MESSAGE_LOG_FD - LC_ALL=C $READELF -r conftest | grep 'no relocations' >/dev/null || { + LC_ALL=C $READELF -Wr conftest | grep -q 'IRELATIVE\|R_SPARC_JMP_IREL' && { libc_cv_ld_gnu_indirect_function=yes } fi diff --git a/debug/backtrace.c b/debug/backtrace.c index cc4b9a5c9..69cf4c23c 100644 --- a/debug/backtrace.c +++ b/debug/backtrace.c @@ -23,6 +23,7 @@ #include #include #include +#include struct trace_arg { @@ -78,6 +79,10 @@ backtrace_helper (struct _Unwind_Context *ctx, void *a) if (arg->cnt != -1) { arg->array[arg->cnt] = (void *) unwind_getip (ctx); + if (arg->cnt > 0) + arg->array[arg->cnt] + = unwind_arch_adjustment (arg->array[arg->cnt - 1], + arg->array[arg->cnt]); /* Check whether we make any progress. */ _Unwind_Word cfa = unwind_getcfa (ctx); diff --git a/include/sys/prctl.h b/include/sys/prctl.h index 0920ed642..d33f3a290 100644 --- a/include/sys/prctl.h +++ b/include/sys/prctl.h @@ -4,6 +4,7 @@ # ifndef _ISOMAC extern int __prctl (int __option, ...); +libc_hidden_proto (__prctl) # endif /* !_ISOMAC */ #endif diff --git a/localedata/locales/oc_FR b/localedata/locales/oc_FR index d0d89a149..ba9377ed4 100644 --- a/localedata/locales/oc_FR +++ b/localedata/locales/oc_FR @@ -92,7 +92,7 @@ day "dimenge";/ "diluns";/ "dimars";/ "dimcres";/ - "dijus";/ + "dijus";/ "divendres";/ "dissabte" abmon "gen.";/ @@ -110,7 +110,7 @@ abmon "gen.";/ alt_mon "genir";/ "febrir";/ "mar";/ - "abrial";/ + "abril";/ "mai";/ "junh";/ "julhet";/ @@ -122,7 +122,7 @@ alt_mon "genir";/ mon "de genir";/ "de febrir";/ "de mar";/ - "dabrial";/ + "dabril";/ "de mai";/ "de junh";/ "de julhet";/ diff --git a/malloc/tst-mallocfork2.c b/malloc/tst-mallocfork2.c index 0602a9489..fc1fd64b2 100644 --- a/malloc/tst-mallocfork2.c +++ b/malloc/tst-mallocfork2.c @@ -62,6 +62,9 @@ static volatile sig_atomic_t sigusr1_received; progress. Checked by liveness_signal_handler. */ static volatile sig_atomic_t progress_indicator = 1; +/* Set to 1 if an error occurs in the signal handler. */ +static volatile sig_atomic_t error_indicator = 0; + static void sigusr1_handler (int signo) { @@ -72,7 +75,8 @@ sigusr1_handler (int signo) if (pid == -1) { write_message ("error: fork\n"); - abort (); + error_indicator = 1; + return; } if (pid == 0) _exit (0); @@ -81,12 +85,14 @@ sigusr1_handler (int signo) if (ret < 0) { write_message ("error: waitpid\n"); - abort (); + error_indicator = 1; + return; } if (status != 0) { write_message ("error: unexpected exit status from subprocess\n"); - abort (); + error_indicator = 1; + return; } } @@ -122,9 +128,25 @@ signal_sender (int signo, bool sleep) } } +/* Children processes. */ +static pid_t sigusr1_sender_pids[5] = { 0 }; +static pid_t sigusr2_sender_pid = 0; + +static void +kill_children (void) +{ + for (size_t i = 0; i < array_length (sigusr1_sender_pids); ++i) + if (sigusr1_sender_pids[i] > 0) + kill (sigusr1_sender_pids[i], SIGKILL); + if (sigusr2_sender_pid > 0) + kill (sigusr2_sender_pid, SIGKILL); +} + static int do_test (void) { + atexit (kill_children); + /* shared->barrier is intialized along with sigusr1_sender_pids below. */ shared = support_shared_allocate (sizeof (*shared)); @@ -148,14 +170,13 @@ do_test (void) return 1; } - pid_t sigusr2_sender_pid = xfork (); + sigusr2_sender_pid = xfork (); if (sigusr2_sender_pid == 0) signal_sender (SIGUSR2, true); /* Send SIGUSR1 signals from several processes. Hopefully, one signal will hit one of the ciritical functions. Use a barrier to avoid sending signals while not running fork/free/malloc. */ - pid_t sigusr1_sender_pids[5]; { pthread_barrierattr_t attr; xpthread_barrierattr_init (&attr); @@ -166,7 +187,7 @@ do_test (void) } for (size_t i = 0; i < array_length (sigusr1_sender_pids); ++i) { - sigusr1_sender_pids[i] = fork (); + sigusr1_sender_pids[i] = xfork (); if (sigusr1_sender_pids[i] == 0) signal_sender (SIGUSR1, false); } @@ -211,7 +232,7 @@ do_test (void) ++malloc_signals; xpthread_barrier_wait (&shared->barrier); - if (objects[slot] == NULL) + if (objects[slot] == NULL || error_indicator != 0) { printf ("error: malloc: %m\n"); for (size_t i = 0; i < array_length (sigusr1_sender_pids); ++i) @@ -225,10 +246,6 @@ do_test (void) for (int slot = 0; slot < malloc_objects; ++slot) free (objects[slot]); - for (size_t i = 0; i < array_length (sigusr1_sender_pids); ++i) - kill (sigusr1_sender_pids[i], SIGKILL); - kill (sigusr2_sender_pid, SIGKILL); - printf ("info: signals received during fork: %u\n", fork_signals); printf ("info: signals received during free: %u\n", free_signals); printf ("info: signals received during malloc: %u\n", malloc_signals); diff --git a/math/Makefile b/math/Makefile index 5985b6744..3496af404 100644 --- a/math/Makefile +++ b/math/Makefile @@ -644,6 +644,128 @@ ifneq ($(long-double-fcts),yes) # We won't compile the `long double' code at all. Tell the `double' code # to define aliases for the `FUNCl' names. math-CPPFLAGS += -DNO_LONG_DOUBLE +# GCC 10 diagnoses aliases with types conflicting with built-in +# functions. +CFLAGS-w_acos.c += -fno-builtin-acosl +CFLAGS-w_acosh.c += -fno-builtin-acoshl +CFLAGS-w_asin.c += -fno-builtin-asinl +CFLAGS-s_asinh.c += -fno-builtin-asinhl +CFLAGS-s_atan.c += -fno-builtin-atanl +CFLAGS-w_atan2.c += -fno-builtin-atan2l +CFLAGS-w_atanh.c += -fno-builtin-atanhl +CFLAGS-s_cabs.c += -fno-builtin-cabsl +CFLAGS-s_cacos.c += -fno-builtin-cacosl +CFLAGS-s_cacosh.c += -fno-builtin-cacoshl +CFLAGS-s_canonicalize.c += -fno-builtin-canonicalizel +CFLAGS-s_carg.c += -fno-builtin-cargl +CFLAGS-s_casin.c += -fno-builtin-casinl +CFLAGS-s_casinh.c += -fno-builtin-casinhl +CFLAGS-s_catan.c += -fno-builtin-catanl +CFLAGS-s_catanh.c += -fno-builtin-catanhl +CFLAGS-s_cbrt.c += -fno-builtin-cbrtl +CFLAGS-s_ccos.c += -fno-builtin-ccosl +CFLAGS-s_ccosh.c += -fno-builtin-ccoshl +CFLAGS-s_ceil.c += -fno-builtin-ceill +CFLAGS-s_cexp.c += -fno-builtin-cexpl +CFLAGS-s_cimag.c += -fno-builtin-cimagl +CFLAGS-s_clog.c += -fno-builtin-clogl +CFLAGS-s_clog10.c += -fno-builtin-clog10l +CFLAGS-s_conj.c += -fno-builtin-conjl +CFLAGS-s_copysign.c += -fno-builtin-copysignl +CFLAGS-s_cos.c += -fno-builtin-cosl +CFLAGS-w_cosh.c += -fno-builtin-coshl +CFLAGS-s_cpow.c += -fno-builtin-cpowl +CFLAGS-s_cproj.c += -fno-builtin-cprojl +CFLAGS-s_creal.c += -fno-builtin-creall +CFLAGS-s_csin.c += -fno-builtin-csinl +CFLAGS-s_csinh.c += -fno-builtin-csinhl +CFLAGS-s_csqrt.c += -fno-builtin-csqrtl +CFLAGS-s_ctan.c += -fno-builtin-ctanl +CFLAGS-s_ctanh.c += -fno-builtin-ctanhl +CFLAGS-s_dadd.c += -fno-builtin-daddl +CFLAGS-s_ddiv.c += -fno-builtin-ddivl +CFLAGS-s_dmul.c += -fno-builtin-dmull +CFLAGS-s_dsub.c += -fno-builtin-dsubl +CFLAGS-s_erf.c += -fno-builtin-erfl +CFLAGS-s_erfc.c += -fno-builtin-erfcl +CFLAGS-e_exp.c += -fno-builtin-expl +CFLAGS-w_exp10.c += -fno-builtin-exp10l +CFLAGS-e_exp2.c += -fno-builtin-exp2l +CFLAGS-s_expm1.c += -fno-builtin-expm1l +CFLAGS-s_fabs.c += -fno-builtin-fabsl +CFLAGS-s_fadd.c += -fno-builtin-faddl +CFLAGS-s_fdim.c += -fno-builtin-fdiml +CFLAGS-s_fdiv.c += -fno-builtin-fdivl +CFLAGS-s_finite.c += -fno-builtin-finitel +CFLAGS-s_floor.c += -fno-builtin-floorl +CFLAGS-s_fma.c += -fno-builtin-fmal +CFLAGS-s_fmax.c += -fno-builtin-fmaxl +CFLAGS-s_fmaxmag.c += -fno-builtin-fmaxmagl +CFLAGS-s_fmin.c += -fno-builtin-fminl +CFLAGS-s_fminmag.c += -fno-builtin-fminmagl +CFLAGS-w_fmod.c += -fno-builtin-fmodl +CFLAGS-s_fmul.c += -fno-builtin-fmull +CFLAGS-s_frexp.c += -fno-builtin-frexpl +CFLAGS-s_fromfp.c += -fno-builtin-fromfpl +CFLAGS-s_fromfpx.c += -fno-builtin-fromfpxl +CFLAGS-s_fsub.c += -fno-builtin-fsubl +CFLAGS-s_gamma.c += -fno-builtin-gammal +CFLAGS-s_getpayload.c += -fno-builtin-getpayloadl +CFLAGS-w_hypot.c += -fno-builtin-hypotl +CFLAGS-w_ilogb.c += -fno-builtin-ilogbl +CFLAGS-s_isinf.c += -fno-builtin-isinfl +CFLAGS-s_isnan.c += -fno-builtin-isnanl +CFLAGS-w_j0.c += -fno-builtin-j0l +CFLAGS-w_j1.c += -fno-builtin-j1l +CFLAGS-w_jn.c += -fno-builtin-jnl +CFLAGS-s_ldexp.c += -fno-builtin-ldexpl +CFLAGS-w_lgamma.c += -fno-builtin-lgammal +CFLAGS-w_lgamma_r.c += -fno-builtin-lgammal_r +CFLAGS-w_llogb.c += -fno-builtin-llogbl +CFLAGS-s_llrint.c += -fno-builtin-llrintl +CFLAGS-s_llround.c += -fno-builtin-llroundl +CFLAGS-e_log.c += -fno-builtin-logl +CFLAGS-w_log10.c += -fno-builtin-log10l +CFLAGS-w_log1p.c += -fno-builtin-log1pl +CFLAGS-e_log2.c += -fno-builtin-log2l +CFLAGS-s_logb.c += -fno-builtin-logbl +CFLAGS-s_lrint.c += -fno-builtin-lrintl +CFLAGS-s_lround.c += -fno-builtin-lroundl +CFLAGS-s_modf.c += -fno-builtin-modfl +CFLAGS-s_nan.c += -fno-builtin-nanl +CFLAGS-s_nearbyint.c += -fno-builtin-nearbyintl +CFLAGS-s_nextafter.c += -fno-builtin-nextafterl +CFLAGS-s_nextdown.c += -fno-builtin-nextdownl +CFLAGS-s_nexttoward.c += -fno-builtin-nexttoward -fno-builtin-nexttowardl +CFLAGS-s_nexttowardf.c += -fno-builtin-nexttowardf +CFLAGS-s_nextup.c += -fno-builtin-nextupl +CFLAGS-e_pow.c += -fno-builtin-powl +CFLAGS-w_remainder.c += -fno-builtin-remainderl -fno-builtin-dreml +CFLAGS-s_remquo.c += -fno-builtin-remquol +CFLAGS-s_rint.c += -fno-builtin-rintl +CFLAGS-s_round.c += -fno-builtin-roundl +CFLAGS-s_roundeven.c += -fno-builtin-roundevenl +CFLAGS-w_scalb.c += -fno-builtin-scalbl +CFLAGS-w_scalbln.c += -fno-builtin-scalblnl +CFLAGS-s_scalbn.c += -fno-builtin-scalbnl +CFLAGS-s_setpayload.c += -fno-builtin-setpayloadl +CFLAGS-s_setpayloadsig.c += -fno-builtin-setpayloadsigl +CFLAGS-s_significand.c += -fno-builtin-significandl +CFLAGS-s_sin.c += -fno-builtin-sinl +CFLAGS-s_sincos.c += -fno-builtin-sincosl +CFLAGS-w_sinh.c += -fno-builtin-sinhl +CFLAGS-w_sqrt.c += -fno-builtin-sqrtl +CFLAGS-s_tan.c += -fno-builtin-tanl +CFLAGS-s_tanh.c += -fno-builtin-tanhl +CFLAGS-w_tgamma.c += -fno-builtin-tgammal +CFLAGS-s_totalorder.c += -fno-builtin-totalorderl +CFLAGS-s_totalordermag.c += -fno-builtin-totalordermagl +CFLAGS-s_trunc.c += -fno-builtin-truncl +CFLAGS-s_ufromfp.c += -fno-builtin-ufromfpl +CFLAGS-s_ufromfpx.c += -fno-builtin-ufromfpxl +CFLAGS-s_y0.c += -fno-builtin-y0l +CFLAGS-s_y1.c += -fno-builtin-y1l +CFLAGS-s_yn.c += -fno-builtin-ynl endif # These files quiet sNaNs in a way that is optimized away without diff --git a/misc/Makefile b/misc/Makefile index e0465980c..e167e199e 100644 --- a/misc/Makefile +++ b/misc/Makefile @@ -87,7 +87,7 @@ tests := tst-dirname tst-tsearch tst-fdset tst-mntent tst-hsearch \ tst-preadvwritev tst-preadvwritev64 tst-makedev tst-empty \ tst-preadvwritev2 tst-preadvwritev64v2 tst-warn-wide \ tst-ldbl-warn tst-ldbl-error tst-dbl-efgcvt tst-ldbl-efgcvt \ - tst-mntent-autofs + tst-mntent-autofs tst-syscalls # Tests which need libdl. ifeq (yes,$(build-shared)) diff --git a/misc/tst-syscalls.c b/misc/tst-syscalls.c new file mode 100644 index 000000000..cfcd38232 --- /dev/null +++ b/misc/tst-syscalls.c @@ -0,0 +1,167 @@ +/* Test for syscall interfaces. + Copyright (C) 2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +/* This test verifies that the x32 system call handling zero-extends + unsigned 32-bit arguments to the 64-bit argument registers for + system calls (bug 25810). The bug is specific to x32, but the test + should pass on all architectures. */ + +#include +#include +#include +#include +#include +#include + +/* On x32, this can be passed in a single 64-bit integer register. */ +struct Array +{ + size_t length; + void *ptr; +}; + +static int error_count; + +__attribute__ ((noclone, noinline)) +struct Array +allocate (size_t bytes) +{ + if (!bytes) + return __extension__ (struct Array) {0, 0}; + + void *p = mmap (0x0, bytes, PROT_READ | PROT_WRITE, + MAP_PRIVATE | MAP_ANON, -1, 0); + if (p == MAP_FAILED) + return __extension__ (struct Array) {0, 0}; + + return __extension__ (struct Array) {bytes, p}; +} + +__attribute__ ((noclone, noinline)) +void +deallocate (struct Array b) +{ + /* On x32, the 64-bit integer register containing `b' may be copied + to another 64-bit integer register to pass the second argument to + munmap. */ + if (b.length && munmap (b.ptr, b.length)) + { + printf ("munmap error: %m\n"); + error_count++; + } +} + +__attribute__ ((noclone, noinline)) +void * +do_mmap (void *addr, size_t length) +{ + return mmap (addr, length, PROT_READ | PROT_WRITE, + MAP_PRIVATE | MAP_ANON, -1, 0); +} + +__attribute__ ((noclone, noinline)) +void * +reallocate (struct Array b) +{ + /* On x32, the 64-bit integer register containing `b' may be copied + to another 64-bit integer register to pass the second argument to + do_mmap. */ + if (b.length) + return do_mmap (b.ptr, b.length); + return NULL; +} + +__attribute__ ((noclone, noinline)) +void +protect (struct Array b) +{ + if (b.length) + { + /* On x32, the 64-bit integer register containing `b' may be copied + to another 64-bit integer register to pass the second argument + to mprotect. */ + if (mprotect (b.ptr, b.length, + PROT_READ | PROT_WRITE | PROT_EXEC)) + { + printf ("mprotect error: %m\n"); + error_count++; + } + } +} + +__attribute__ ((noclone, noinline)) +ssize_t +do_read (int fd, void *ptr, struct Array b) +{ + /* On x32, the 64-bit integer register containing `b' may be copied + to another 64-bit integer register to pass the second argument to + read. */ + if (b.length) + return read (fd, ptr, b.length); + return 0; +} + +__attribute__ ((noclone, noinline)) +ssize_t +do_write (int fd, void *ptr, struct Array b) +{ + /* On x32, the 64-bit integer register containing `b' may be copied + to another 64-bit integer register to pass the second argument to + write. */ + if (b.length) + return write (fd, ptr, b.length); + return 0; +} + +static int +do_test (void) +{ + struct Array array; + + array = allocate (1); + protect (array); + deallocate (array); + void *p = reallocate (array); + if (p == MAP_FAILED) + { + printf ("mmap error: %m\n"); + error_count++; + } + array.ptr = p; + protect (array); + deallocate (array); + + int fd = xopen ("/dev/null", O_RDWR, 0); + char buf[2]; + array.ptr = buf; + if (do_read (fd, array.ptr, array) == -1) + { + printf ("read error: %m\n"); + error_count++; + } + if (do_write (fd, array.ptr, array) == -1) + { + printf ("write error: %m\n"); + error_count++; + } + xclose (fd); + + return error_count ? EXIT_FAILURE : EXIT_SUCCESS; +} + +#include diff --git a/nss/nss_compat/compat-grp.c b/nss/nss_compat/compat-grp.c index a8de1e03b..f8b19a5cf 100644 --- a/nss/nss_compat/compat-grp.c +++ b/nss/nss_compat/compat-grp.c @@ -142,7 +142,7 @@ _nss_compat_setgrent (int stayopen) } -static enum nss_status +static enum nss_status __attribute_warn_unused_result__ internal_endgrent (ent_t *ent) { if (ent->stream != NULL) @@ -163,6 +163,15 @@ internal_endgrent (ent_t *ent) return NSS_STATUS_SUCCESS; } +/* Like internal_endgrent, but preserve errno in all cases. */ +static void +internal_endgrent_noerror (ent_t *ent) +{ + int saved_errno = errno; + enum nss_status unused __attribute__ ((unused)) = internal_endgrent (ent); + __set_errno (saved_errno); +} + enum nss_status _nss_compat_endgrent (void) { @@ -483,7 +492,7 @@ _nss_compat_getgrnam_r (const char *name, struct group *grp, if (result == NSS_STATUS_SUCCESS) result = internal_getgrnam_r (name, grp, &ent, buffer, buflen, errnop); - internal_endgrent (&ent); + internal_endgrent_noerror (&ent); return result; } @@ -612,7 +621,7 @@ _nss_compat_getgrgid_r (gid_t gid, struct group *grp, if (result == NSS_STATUS_SUCCESS) result = internal_getgrgid_r (gid, grp, &ent, buffer, buflen, errnop); - internal_endgrent (&ent); + internal_endgrent_noerror (&ent); return result; } diff --git a/nss/nss_compat/compat-initgroups.c b/nss/nss_compat/compat-initgroups.c index 939b25b33..7591442ff 100644 --- a/nss/nss_compat/compat-initgroups.c +++ b/nss/nss_compat/compat-initgroups.c @@ -133,7 +133,7 @@ internal_setgrent (ent_t *ent) } -static enum nss_status +static enum nss_status __attribute_warn_unused_result__ internal_endgrent (ent_t *ent) { if (ent->stream != NULL) @@ -157,6 +157,15 @@ internal_endgrent (ent_t *ent) return NSS_STATUS_SUCCESS; } +/* Like internal_endgrent, but preserve errno in all cases. */ +static void +internal_endgrent_noerror (ent_t *ent) +{ + int saved_errno = errno; + enum nss_status unused __attribute__ ((unused)) = internal_endgrent (ent); + __set_errno (saved_errno); +} + /* Add new group record. */ static void add_group (long int *start, long int *size, gid_t **groupsp, long int limit, @@ -501,7 +510,7 @@ _nss_compat_initgroups_dyn (const char *user, gid_t group, long int *start, done: scratch_buffer_free (&tmpbuf); - internal_endgrent (&intern); + internal_endgrent_noerror (&intern); return status; } diff --git a/nss/nss_compat/compat-pwd.c b/nss/nss_compat/compat-pwd.c index ec3f35c59..bd5e707da 100644 --- a/nss/nss_compat/compat-pwd.c +++ b/nss/nss_compat/compat-pwd.c @@ -259,7 +259,7 @@ _nss_compat_setpwent (int stayopen) } -static enum nss_status +static enum nss_status __attribute_warn_unused_result__ internal_endpwent (ent_t *ent) { if (ent->stream != NULL) @@ -287,6 +287,15 @@ internal_endpwent (ent_t *ent) return NSS_STATUS_SUCCESS; } +/* Like internal_endpwent, but preserve errno in all cases. */ +static void +internal_endpwent_noerror (ent_t *ent) +{ + int saved_errno = errno; + enum nss_status unused __attribute__ ((unused)) = internal_endpwent (ent); + __set_errno (saved_errno); +} + enum nss_status _nss_compat_endpwent (void) { @@ -822,7 +831,7 @@ _nss_compat_getpwnam_r (const char *name, struct passwd *pwd, if (result == NSS_STATUS_SUCCESS) result = internal_getpwnam_r (name, pwd, &ent, buffer, buflen, errnop); - internal_endpwent (&ent); + internal_endpwent_noerror (&ent); return result; } @@ -1061,7 +1070,7 @@ _nss_compat_getpwuid_r (uid_t uid, struct passwd *pwd, if (result == NSS_STATUS_SUCCESS) result = internal_getpwuid_r (uid, pwd, &ent, buffer, buflen, errnop); - internal_endpwent (&ent); + internal_endpwent_noerror (&ent); return result; } diff --git a/nss/nss_compat/compat-spwd.c b/nss/nss_compat/compat-spwd.c index f6b7a1ef1..d0e3c51b4 100644 --- a/nss/nss_compat/compat-spwd.c +++ b/nss/nss_compat/compat-spwd.c @@ -215,7 +215,7 @@ _nss_compat_setspent (int stayopen) } -static enum nss_status +static enum nss_status __attribute_warn_unused_result__ internal_endspent (ent_t *ent) { if (ent->stream != NULL) @@ -244,6 +244,15 @@ internal_endspent (ent_t *ent) return NSS_STATUS_SUCCESS; } +/* Like internal_endspent, but preserve errno in all cases. */ +static void +internal_endspent_noerror (ent_t *ent) +{ + int saved_errno = errno; + enum nss_status unused __attribute__ ((unused)) = internal_endspent (ent); + __set_errno (saved_errno); +} + enum nss_status _nss_compat_endspent (void) { @@ -261,7 +270,6 @@ _nss_compat_endspent (void) return result; } - static enum nss_status getspent_next_nss_netgr (const char *name, struct spwd *result, ent_t *ent, char *group, char *buffer, size_t buflen, @@ -786,7 +794,7 @@ _nss_compat_getspnam_r (const char *name, struct spwd *pwd, if (result == NSS_STATUS_SUCCESS) result = internal_getspnam_r (name, pwd, &ent, buffer, buflen, errnop); - internal_endspent (&ent); + internal_endspent_noerror (&ent); return result; } diff --git a/posix/glob.c b/posix/glob.c index cba9cd181..4580cefb9 100644 --- a/posix/glob.c +++ b/posix/glob.c @@ -827,31 +827,32 @@ __glob (const char *pattern, int flags, int (*errfunc) (const char *, int), { size_t home_len = strlen (p->pw_dir); size_t rest_len = end_name == NULL ? 0 : strlen (end_name); - char *d; + char *d, *newp; + bool use_alloca = glob_use_alloca (alloca_used, + home_len + rest_len + 1); - if (__glibc_unlikely (malloc_dirname)) - free (dirname); - malloc_dirname = 0; - - if (glob_use_alloca (alloca_used, home_len + rest_len + 1)) - dirname = alloca_account (home_len + rest_len + 1, - alloca_used); + if (use_alloca) + newp = alloca_account (home_len + rest_len + 1, alloca_used); else { - dirname = malloc (home_len + rest_len + 1); - if (dirname == NULL) + newp = malloc (home_len + rest_len + 1); + if (newp == NULL) { scratch_buffer_free (&pwtmpbuf); retval = GLOB_NOSPACE; goto out; } - malloc_dirname = 1; } - d = mempcpy (dirname, p->pw_dir, home_len); + d = mempcpy (newp, p->pw_dir, home_len); if (end_name != NULL) d = mempcpy (d, end_name, rest_len); *d = '\0'; + if (__glibc_unlikely (malloc_dirname)) + free (dirname); + dirname = newp; + malloc_dirname = !use_alloca; + dirlen = home_len + rest_len; dirname_modified = 1; } diff --git a/stdlib/Makefile b/stdlib/Makefile index 45214b59e..4615f6dfe 100644 --- a/stdlib/Makefile +++ b/stdlib/Makefile @@ -70,7 +70,7 @@ tests := tst-strtol tst-strtod testmb testrand testsort testdiv \ test-canon test-canon2 tst-strtoll tst-environ \ tst-xpg-basename tst-random tst-random2 tst-bsearch \ tst-limits tst-rand48 bug-strtod tst-setcontext \ - tst-setcontext2 test-a64l tst-qsort tst-system testmb2 \ + tst-setcontext2 test-a64l tst-qsort testmb2 \ bug-strtod2 tst-atof1 tst-atof2 tst-strtod2 \ tst-rand48-2 tst-makecontext tst-strtod5 \ tst-qsort2 tst-makecontext2 tst-strtod6 tst-unsetenv1 \ @@ -92,6 +92,7 @@ tests := tst-strtol tst-strtod testmb testrand testsort testdiv \ tests-internal := tst-strtod1i tst-strtod3 tst-strtod4 tst-strtod5i \ tst-tls-atexit tst-tls-atexit-nodelete tests-static := tst-secure-getenv +tests-container := tst-system ifeq ($(build-hardcoded-path-in-tests),yes) tests += tst-empty-env diff --git a/stdlib/tst-system.c b/stdlib/tst-system.c index b6c5aea08..eddea33f4 100644 --- a/stdlib/tst-system.c +++ b/stdlib/tst-system.c @@ -17,14 +17,130 @@ . */ #include +#include +#include +#include +#include +#include +#include +#include +#include + +static char *tmpdir; +static long int namemax; + +static void +do_prepare (int argc, char *argv[]) +{ + tmpdir = support_create_temp_directory ("tst-system-"); + /* Include the last '/0'. */ + namemax = pathconf (tmpdir, _PC_NAME_MAX) + 1; + TEST_VERIFY_EXIT (namemax != -1); +} +#define PREPARE do_prepare + +struct args +{ + const char *command; + int exit_status; + int term_sig; + const char *path; +}; + +static void +call_system (void *closure) +{ + struct args *args = (struct args *) closure; + int ret; + + if (args->path != NULL) + TEST_COMPARE (setenv ("PATH", args->path, 1), 0); + ret = system (args->command); + if (args->term_sig == 0) + { + /* Expect regular termination. */ + TEST_VERIFY (WIFEXITED (ret) != 0); + TEST_COMPARE (WEXITSTATUS (ret), args->exit_status); + } + else + { + /* status_or_signal < 0. Expect termination by signal. */ + TEST_VERIFY (WIFSIGNALED (ret) != 0); + TEST_COMPARE (WTERMSIG (ret), args->term_sig); + } +} static int do_test (void) { - return system (":"); -} + TEST_VERIFY (system (NULL) != 0); + { + char cmd[namemax]; + memset (cmd, 'a', sizeof(cmd)); + cmd[sizeof(cmd) - 1] = '\0'; + + struct support_capture_subprocess result; + result = support_capture_subprocess (call_system, + &(struct args) { + cmd, 127, 0, tmpdir + }); + support_capture_subprocess_check (&result, "system", 0, sc_allow_stderr); + + char *returnerr = xasprintf ("%s: execing %s failed: " + "No such file or directory", + basename(_PATH_BSHELL), cmd); + TEST_COMPARE_STRING (result.err.buffer, returnerr); + free (returnerr); + } + + { + char cmd[namemax + 1]; + memset (cmd, 'a', sizeof(cmd)); + cmd[sizeof(cmd) - 1] = '\0'; + + struct support_capture_subprocess result; + result = support_capture_subprocess (call_system, + &(struct args) { + cmd, 127, 0, tmpdir + }); + support_capture_subprocess_check (&result, "system", 0, sc_allow_stderr); + + char *returnerr = xasprintf ("%s: execing %s failed: " + "File name too long", + basename(_PATH_BSHELL), cmd); + TEST_COMPARE_STRING (result.err.buffer, returnerr); + free (returnerr); + } + + { + struct support_capture_subprocess result; + result = support_capture_subprocess (call_system, + &(struct args) { + "kill $$", 0, SIGTERM + }); + support_capture_subprocess_check (&result, "system", 0, sc_allow_none); + } + + { + struct support_capture_subprocess result; + result = support_capture_subprocess (call_system, + &(struct args) { "echo ...", 0 }); + support_capture_subprocess_check (&result, "system", 0, sc_allow_stdout); + TEST_COMPARE_STRING (result.out.buffer, "...\n"); + } + + { + struct support_capture_subprocess result; + result = support_capture_subprocess (call_system, + &(struct args) { "exit 1", 1 }); + support_capture_subprocess_check (&result, "system", 0, sc_allow_none); + } + + TEST_COMPARE (system (""), 0); + + return 0; +} -#define TEST_FUNCTION do_test () -#include "../test-skeleton.c" +#include diff --git a/support/shell-container.c b/support/shell-container.c index 509e0d69b..201536d24 100644 --- a/support/shell-container.c +++ b/support/shell-container.c @@ -135,6 +135,37 @@ copy_func (char **argv) } +/* Emulate the 'exit' builtin. The exit value is optional. */ +static int +exit_func (char **argv) +{ + int exit_val = 0; + + if (argv[0] != 0) + exit_val = atoi (argv[0]) & 0xff; + exit (exit_val); + return 0; +} + +/* Emulate the "/bin/kill" command. Options are ignored. */ +static int +kill_func (char **argv) +{ + int signum = SIGTERM; + int i; + + for (i = 0; argv[i]; i++) + { + pid_t pid; + if (strcmp (argv[i], "$$") == 0) + pid = getpid (); + else + pid = atoi (argv[i]); + kill (pid, signum); + } + return 0; +} + /* This is a list of all the built-in commands we understand. */ static struct { const char *name; @@ -143,6 +174,8 @@ static struct { { "true", true_func }, { "echo", echo_func }, { "cp", copy_func }, + { "exit", exit_func }, + { "kill", kill_func }, { NULL, NULL } }; @@ -238,7 +271,7 @@ run_command_array (char **argv) fprintf (stderr, "sh: execing %s failed: %s", argv[0], strerror (errno)); - exit (1); + exit (127); } waitpid (pid, &status, 0); @@ -251,6 +284,11 @@ run_command_array (char **argv) if (rv) exit (rv); } + else if (WIFSIGNALED (status)) + { + int sig = WTERMSIG (status); + raise (sig); + } else exit (1); } diff --git a/sysdeps/aarch64/strcpy.S b/sysdeps/aarch64/strcpy.S index 548130e41..a8ff52c07 100644 --- a/sysdeps/aarch64/strcpy.S +++ b/sysdeps/aarch64/strcpy.S @@ -234,8 +234,13 @@ L(entry_no_page_cross): #endif /* calculate the loc value */ cmeq datav.16b, datav.16b, #0 +#ifdef __AARCH64EB__ + mov data1, datav.d[1] + mov data2, datav.d[0] +#else mov data1, datav.d[0] mov data2, datav.d[1] +#endif cmp data1, 0 csel data1, data1, data2, ne mov pos, 8 diff --git a/sysdeps/aarch64/strnlen.S b/sysdeps/aarch64/strnlen.S index 5981247dd..086a5c7e9 100644 --- a/sysdeps/aarch64/strnlen.S +++ b/sysdeps/aarch64/strnlen.S @@ -154,8 +154,13 @@ L(loop_end): byte. */ cmeq datav.16b, datav.16b, #0 +#ifdef __AARCH64EB__ + mov data1, datav.d[1] + mov data2, datav.d[0] +#else mov data1, datav.d[0] mov data2, datav.d[1] +#endif cmp data1, 0 csel data1, data1, data2, ne sub len, src, srcin diff --git a/sysdeps/arm/be/nofpu/Implies b/sysdeps/arm/be/nofpu/Implies new file mode 100644 index 000000000..c90dd7fd5 --- /dev/null +++ b/sysdeps/arm/be/nofpu/Implies @@ -0,0 +1 @@ +arm/nofpu diff --git a/sysdeps/arm/le/nofpu/Implies b/sysdeps/arm/le/nofpu/Implies new file mode 100644 index 000000000..c90dd7fd5 --- /dev/null +++ b/sysdeps/arm/le/nofpu/Implies @@ -0,0 +1 @@ +arm/nofpu diff --git a/sysdeps/generic/unwind-arch.h b/sysdeps/generic/unwind-arch.h new file mode 100644 index 000000000..d712e5e11 --- /dev/null +++ b/sysdeps/generic/unwind-arch.h @@ -0,0 +1,30 @@ +/* Return backtrace of current program state. Arch-specific bits. + Copyright (C) 2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#ifndef _UNWIND_ARCH_H +#define _UNWIND_ARCH_H + +#include + +static inline void * +unwind_arch_adjustment (void *prev, void *addr) +{ + return addr; +} + +#endif diff --git a/sysdeps/hppa/dl-fptr.c b/sysdeps/hppa/dl-fptr.c index 0a3739728..25ca8f846 100644 --- a/sysdeps/hppa/dl-fptr.c +++ b/sysdeps/hppa/dl-fptr.c @@ -172,8 +172,8 @@ make_fdesc (ElfW(Addr) ip, ElfW(Addr) gp) } install: - fdesc->ip = ip; fdesc->gp = gp; + fdesc->ip = ip; return (ElfW(Addr)) fdesc; } @@ -350,7 +350,9 @@ ElfW(Addr) _dl_lookup_address (const void *address) { ElfW(Addr) addr = (ElfW(Addr)) address; - unsigned int *desc, *gptr; + ElfW(Word) reloc_arg; + volatile unsigned int *desc; + unsigned int *gptr; /* Return ADDR if the least-significant two bits of ADDR are not consistent with ADDR being a linker defined function pointer. The normal value for @@ -367,7 +369,11 @@ _dl_lookup_address (const void *address) if (!_dl_read_access_allowed (desc)) return addr; - /* Load first word of candidate descriptor. It should be a pointer + /* First load the relocation offset. */ + reloc_arg = (ElfW(Word)) desc[1]; + atomic_full_barrier(); + + /* Then load first word of candidate descriptor. It should be a pointer with word alignment and point to memory that can be read. */ gptr = (unsigned int *) desc[0]; if (((unsigned int) gptr & 3) != 0 @@ -377,8 +383,8 @@ _dl_lookup_address (const void *address) /* See if descriptor requires resolution. The following trampoline is used in each global offset table for function resolution: - ldw 0(r20),r22 - bv r0(r22) + ldw 0(r20),r21 + bv r0(r21) ldw 4(r20),r21 tramp: b,l .-12,r20 depwi 0,31,2,r20 @@ -389,7 +395,15 @@ _dl_lookup_address (const void *address) if (gptr[0] == 0xea9f1fdd /* b,l .-12,r20 */ && gptr[1] == 0xd6801c1e /* depwi 0,31,2,r20 */ && (ElfW(Addr)) gptr[2] == elf_machine_resolve ()) - _dl_fixup ((struct link_map *) gptr[5], (ElfW(Word)) desc[1]); + { + struct link_map *l = (struct link_map *) gptr[5]; + + /* If gp has been resolved, we need to hunt for relocation offset. */ + if (!(reloc_arg & PA_GP_RELOC)) + reloc_arg = _dl_fix_reloc_arg (addr, l); + + _dl_fixup (l, reloc_arg); + } return (ElfW(Addr)) desc[0]; } diff --git a/sysdeps/hppa/dl-machine.h b/sysdeps/hppa/dl-machine.h index 9e98366ea..8ecff9770 100644 --- a/sysdeps/hppa/dl-machine.h +++ b/sysdeps/hppa/dl-machine.h @@ -48,6 +48,14 @@ #define GOT_FROM_PLT_STUB (4*4) #define PLT_ENTRY_SIZE (2*4) +/* The gp slot in the function descriptor contains the relocation offset + before resolution. To distinguish between a resolved gp value and an + unresolved relocation offset we set an unused bit in the relocation + offset. This would allow us to do a synchronzied two word update + using this bit (interlocked update), but instead of waiting for the + update we simply recompute the gp value given that we know the ip. */ +#define PA_GP_RELOC 1 + /* Initialize the function descriptor table before relocations */ static inline void __hppa_init_bootstrap_fdesc_table (struct link_map *map) @@ -117,10 +125,28 @@ elf_machine_fixup_plt (struct link_map *map, lookup_t t, volatile Elf32_Addr *rfdesc = reloc_addr; /* map is the link_map for the caller, t is the link_map for the object being called */ - rfdesc[1] = value.gp; - /* Need to ensure that the gp is visible before the code - entry point is updated */ - rfdesc[0] = value.ip; + + /* We would like the function descriptor to be double word aligned. This + helps performance (ip and gp then reside on the same cache line) and + we can update the pair atomically with a single store. The linker + now ensures this alignment but we still have to handle old code. */ + if ((unsigned int)reloc_addr & 7) + { + /* Need to ensure that the gp is visible before the code + entry point is updated */ + rfdesc[1] = value.gp; + atomic_full_barrier(); + rfdesc[0] = value.ip; + } + else + { + /* Update pair atomically with floating point store. */ + union { ElfW(Word) v[2]; double d; } u; + + u.v[0] = value.ip; + u.v[1] = value.gp; + *(volatile double *)rfdesc = u.d; + } return value; } @@ -265,7 +291,7 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile) here. The trampoline code will load the proper LTP and pass the reloc offset to the fixup function. */ - fptr->gp = iplt - jmprel; + fptr->gp = (iplt - jmprel) | PA_GP_RELOC; } /* r_sym != 0 */ else { diff --git a/sysdeps/hppa/dl-runtime.c b/sysdeps/hppa/dl-runtime.c new file mode 100644 index 000000000..885a3f183 --- /dev/null +++ b/sysdeps/hppa/dl-runtime.c @@ -0,0 +1,58 @@ +/* On-demand PLT fixup for shared objects. HPPA version. + Copyright (C) 2019 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +/* Clear PA_GP_RELOC bit in relocation offset. */ +#define reloc_offset (reloc_arg & ~PA_GP_RELOC) +#define reloc_index (reloc_arg & ~PA_GP_RELOC) / sizeof (PLTREL) + +#include + +/* The caller has encountered a partially relocated function descriptor. + The gp of the descriptor has been updated, but not the ip. We find + the function descriptor again and compute the relocation offset and + return that to the caller. The caller will continue on to call + _dl_fixup with the relocation offset. */ + +ElfW(Word) +attribute_hidden __attribute ((noinline)) ARCH_FIXUP_ATTRIBUTE +_dl_fix_reloc_arg (struct fdesc *fptr, struct link_map *l) +{ + Elf32_Addr l_addr, iplt, jmprel, end_jmprel, r_type; + const Elf32_Rela *reloc; + + l_addr = l->l_addr; + jmprel = D_PTR(l, l_info[DT_JMPREL]); + end_jmprel = jmprel + l->l_info[DT_PLTRELSZ]->d_un.d_val; + + /* Look for the entry... */ + for (iplt = jmprel; iplt < end_jmprel; iplt += sizeof (Elf32_Rela)) + { + reloc = (const Elf32_Rela *) iplt; + r_type = ELF32_R_TYPE (reloc->r_info); + + if (__builtin_expect (r_type == R_PARISC_IPLT, 1) + && fptr == (struct fdesc *) (reloc->r_offset + l_addr)) + /* Found entry. Return the reloc offset. */ + return iplt - jmprel; + } + + /* Crash if we weren't passed a valid function pointer. */ + ABORT_INSTRUCTION; + return 0; +} diff --git a/sysdeps/hppa/dl-trampoline.S b/sysdeps/hppa/dl-trampoline.S index 0114ca8b1..d0804b30c 100644 --- a/sysdeps/hppa/dl-trampoline.S +++ b/sysdeps/hppa/dl-trampoline.S @@ -31,7 +31,7 @@ slow down __cffc when it attempts to call fixup to resolve function descriptor references. Please refer to gcc/gcc/config/pa/fptr.c - Enter with r19 = reloc offset, r20 = got-8, r21 = fixup ltp. */ + Enter with r19 = reloc offset, r20 = got-8, r21 = fixup ltp, r22 = fp. */ /* RELOCATION MARKER: bl to provide gcc's __cffc with fixup loc. */ .text @@ -61,17 +61,20 @@ _dl_runtime_resolve: copy %sp, %r1 /* Copy previous sp */ /* Save function result address (on entry) */ stwm %r28,128(%sp) - /* Fillin some frame info to follow ABI */ + /* Fill in some frame info to follow ABI */ stw %r1,-4(%sp) /* Previous sp */ stw %r21,-32(%sp) /* PIC register value */ /* Save input floating point registers. This must be done in the new frame since the previous frame doesn't have enough space */ - ldo -56(%sp),%r1 + ldo -64(%sp),%r1 fstd,ma %fr4,-8(%r1) fstd,ma %fr5,-8(%r1) fstd,ma %fr6,-8(%r1) + + /* Test PA_GP_RELOC bit. */ + bb,>= %r19,31,2f /* branch if not reloc offset */ fstd,ma %fr7,-8(%r1) /* Set up args to fixup func, needs only two arguments */ @@ -79,7 +82,7 @@ _dl_runtime_resolve: copy %r19,%r25 /* (2) reloc offset */ /* Call the real address resolver. */ - bl _dl_fixup,%rp +3: bl _dl_fixup,%rp copy %r21,%r19 /* set fixup func ltp */ /* While the linker will set a function pointer to NULL when it @@ -102,7 +105,7 @@ _dl_runtime_resolve: copy %r29, %r19 /* Reload arguments fp args */ - ldo -56(%sp),%r1 + ldo -64(%sp),%r1 fldd,ma -8(%r1),%fr4 fldd,ma -8(%r1),%fr5 fldd,ma -8(%r1),%fr6 @@ -129,6 +132,25 @@ _dl_runtime_resolve: bv %r0(%rp) ldo -128(%sp),%sp +2: + /* Set up args for _dl_fix_reloc_arg. */ + copy %r22,%r26 /* (1) function pointer */ + depi 0,31,2,%r26 /* clear least significant bits */ + ldw 8+4(%r20),%r25 /* (2) got[1] == struct link_map */ + + /* Save ltp and link map arg for _dl_fixup. */ + stw %r21,-56(%sp) /* ltp */ + stw %r25,-60(%sp) /* struct link map */ + + /* Find reloc offset. */ + bl _dl_fix_reloc_arg,%rp + copy %r21,%r19 /* set func ltp */ + + /* Set up args for _dl_fixup. */ + ldw -56(%sp),%r21 /* ltp */ + ldw -60(%sp),%r26 /* (1) struct link map */ + b 3b + copy %ret0,%r25 /* (2) reloc offset */ .EXIT .PROCEND cfi_endproc @@ -153,7 +175,7 @@ _dl_runtime_profile: copy %sp, %r1 /* Copy previous sp */ /* Save function result address (on entry) */ stwm %r28,192(%sp) - /* Fillin some frame info to follow ABI */ + /* Fill in some frame info to follow ABI */ stw %r1,-4(%sp) /* Previous sp */ stw %r21,-32(%sp) /* PIC register value */ @@ -181,10 +203,11 @@ _dl_runtime_profile: fstd,ma %fr5,8(%r1) fstd,ma %fr6,8(%r1) fstd,ma %fr7,8(%r1) - /* 32-bit stack pointer and return register */ - stw %sp,-56(%sp) - stw %r2,-52(%sp) + /* Test PA_GP_RELOC bit. */ + bb,>= %r19,31,2f /* branch if not reloc offset */ + /* 32-bit stack pointer */ + stw %sp,-56(%sp) /* Set up args to fixup func, needs five arguments */ ldw 8+4(%r20),%r26 /* (1) got[1] == struct link_map */ @@ -197,7 +220,7 @@ _dl_runtime_profile: stw %r1, -52(%sp) /* (5) long int *framesizep */ /* Call the real address resolver. */ - bl _dl_profile_fixup,%rp +3: bl _dl_profile_fixup,%rp copy %r21,%r19 /* set fixup func ltp */ /* Load up the returned function descriptor */ @@ -215,7 +238,9 @@ _dl_runtime_profile: fldd,ma 8(%r1),%fr5 fldd,ma 8(%r1),%fr6 fldd,ma 8(%r1),%fr7 - ldw -52(%sp),%rp + + /* Reload rp register -(192+20) without adjusting stack */ + ldw -212(%sp),%rp /* Reload static link register -(192+16) without adjusting stack */ ldw -208(%sp),%r29 @@ -303,6 +328,33 @@ L(cont): ldw -20(%sp),%rp /* Return */ bv,n 0(%r2) + +2: + /* Set up args for _dl_fix_reloc_arg. */ + copy %r22,%r26 /* (1) function pointer */ + depi 0,31,2,%r26 /* clear least significant bits */ + ldw 8+4(%r20),%r25 /* (2) got[1] == struct link_map */ + + /* Save ltp and link map arg for _dl_fixup. */ + stw %r21,-92(%sp) /* ltp */ + stw %r25,-116(%sp) /* struct link map */ + + /* Find reloc offset. */ + bl _dl_fix_reloc_arg,%rp + copy %r21,%r19 /* set func ltp */ + + /* Restore fixup ltp. */ + ldw -92(%sp),%r21 /* ltp */ + + /* Set up args to fixup func, needs five arguments */ + ldw -116(%sp),%r26 /* (1) struct link map */ + copy %ret0,%r25 /* (2) reloc offset */ + stw %r25,-120(%sp) /* Save reloc offset */ + ldw -212(%sp),%r24 /* (3) profile_fixup needs rp */ + ldo -56(%sp),%r23 /* (4) La_hppa_regs */ + ldo -112(%sp), %r1 + b 3b + stw %r1, -52(%sp) /* (5) long int *framesizep */ .EXIT .PROCEND cfi_endproc diff --git a/sysdeps/i386/sysdep.h b/sysdeps/i386/sysdep.h index b4bcd8fb6..6094af8fe 100644 --- a/sysdeps/i386/sysdep.h +++ b/sysdeps/i386/sysdep.h @@ -61,7 +61,7 @@ lose: SYSCALL_PIC_SETUP \ # define SETUP_PIC_REG(reg) \ .ifndef GET_PC_THUNK(reg); \ - .section .gnu.linkonce.t.GET_PC_THUNK(reg),"ax",@progbits; \ + .section .text.GET_PC_THUNK(reg),"axG",@progbits,GET_PC_THUNK(reg),comdat; \ .globl GET_PC_THUNK(reg); \ .hidden GET_PC_THUNK(reg); \ .p2align 4; \ @@ -97,7 +97,8 @@ GET_PC_THUNK(reg): \ # define SETUP_PIC_REG_STR(reg) \ ".ifndef " GET_PC_THUNK_STR (reg) "\n" \ - ".section .gnu.linkonce.t." GET_PC_THUNK_STR (reg) ",\"ax\",@progbits\n" \ + ".section .text." GET_PC_THUNK_STR (reg) ",\"axG\",@progbits," \ + GET_PC_THUNK_STR (reg) ",comdat\n" \ ".globl " GET_PC_THUNK_STR (reg) "\n" \ ".hidden " GET_PC_THUNK_STR (reg) "\n" \ ".p2align 4\n" \ diff --git a/sysdeps/ieee754/ldbl-96/Makefile b/sysdeps/ieee754/ldbl-96/Makefile index 995e90d6d..6030adf7e 100644 --- a/sysdeps/ieee754/ldbl-96/Makefile +++ b/sysdeps/ieee754/ldbl-96/Makefile @@ -17,5 +17,8 @@ # . ifeq ($(subdir),math) -tests += test-canonical-ldbl-96 test-totalorderl-ldbl-96 +tests += test-canonical-ldbl-96 test-totalorderl-ldbl-96 test-sinl-pseudo +ifeq ($(have-ssp),yes) +CFLAGS-test-sinl-pseudo.c += -fstack-protector-all endif +endif # $(subdir) == math diff --git a/sysdeps/ieee754/ldbl-96/e_rem_pio2l.c b/sysdeps/ieee754/ldbl-96/e_rem_pio2l.c index 5f742321a..bcdf20179 100644 --- a/sysdeps/ieee754/ldbl-96/e_rem_pio2l.c +++ b/sysdeps/ieee754/ldbl-96/e_rem_pio2l.c @@ -210,6 +210,18 @@ __ieee754_rem_pio2l (long double x, long double *y) return 0; } + if ((i0 & 0x80000000) == 0) + { + /* Pseudo-zero and unnormal representations are not valid + representations of long double. We need to avoid stack + corruption in __kernel_rem_pio2, which expects input in a + particular normal form, but those representations do not need + to be consistently handled like any particular floating-point + value. */ + y[1] = y[0] = __builtin_nanl (""); + return 0; + } + /* Split the 64 bits of the mantissa into three 24-bit integers stored in a double array. */ exp = j0 - 23; diff --git a/sysdeps/ieee754/ldbl-96/test-sinl-pseudo.c b/sysdeps/ieee754/ldbl-96/test-sinl-pseudo.c new file mode 100644 index 000000000..f59b97769 --- /dev/null +++ b/sysdeps/ieee754/ldbl-96/test-sinl-pseudo.c @@ -0,0 +1,41 @@ +/* Test sinl for pseudo-zeros and unnormals for ldbl-96 (bug 25487). + Copyright (C) 2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#include +#include +#include + +static int +do_test (void) +{ + for (int i = 0; i < 64; i++) + { + uint64_t sig = i == 63 ? 0 : 1ULL << i; + long double ld; + SET_LDOUBLE_WORDS (ld, 0x4141, + sig >> 32, sig & 0xffffffffULL); + /* The requirement is that no stack overflow occurs when the + pseudo-zero or unnormal goes through range reduction. */ + volatile long double ldr; + ldr = sinl (ld); + (void) ldr; + } + return 0; +} + +#include diff --git a/sysdeps/posix/system.c b/sysdeps/posix/system.c index e613e6a34..a03f478fc 100644 --- a/sysdeps/posix/system.c +++ b/sysdeps/posix/system.c @@ -101,7 +101,8 @@ cancel_handler (void *arg) static int do_system (const char *line) { - int status; + int status = -1; + int ret; pid_t pid; struct sigaction sa; #ifndef _LIBC_REENTRANT @@ -144,14 +145,14 @@ do_system (const char *line) __posix_spawnattr_setflags (&spawn_attr, POSIX_SPAWN_SETSIGDEF | POSIX_SPAWN_SETSIGMASK); - status = __posix_spawn (&pid, SHELL_PATH, 0, &spawn_attr, - (char *const[]){ (char*) SHELL_NAME, - (char*) "-c", - (char *) line, NULL }, - __environ); + ret = __posix_spawn (&pid, SHELL_PATH, 0, &spawn_attr, + (char *const[]){ (char *) SHELL_NAME, + (char *) "-c", + (char *) line, NULL }, + __environ); __posix_spawnattr_destroy (&spawn_attr); - if (status == 0) + if (ret == 0) { /* Cancellation results in cleanup handlers running as exceptions in the block where they were installed, so it is safe to reference @@ -186,6 +187,9 @@ do_system (const char *line) } DO_UNLOCK (); + if (ret != 0) + __set_errno (ret); + return status; } diff --git a/sysdeps/unix/make-syscalls.sh b/sysdeps/unix/make-syscalls.sh index c07626677..4f6c3490a 100644 --- a/sysdeps/unix/make-syscalls.sh +++ b/sysdeps/unix/make-syscalls.sh @@ -30,6 +30,7 @@ # P: optionally-NULL pointer to typed object (e.g., 3rd argument to sigaction) # s: non-NULL string (e.g., 1st arg to open) # S: optionally-NULL string (e.g., 1st arg to acct) +# U: unsigned long int (32-bit types are zero-extended to 64-bit types) # v: vararg scalar (e.g., optional 3rd arg to open) # V: byte-per-page vector (3rd arg to mincore) # W: wait status, optionally-NULL pointer to int (e.g., 2nd arg of wait4) @@ -184,6 +185,27 @@ while read file srcfile caller syscall args strong weak; do ?:?????????) nargs=9;; esac + # Derive the unsigned long int arguments from the argument signature + ulong_arg_1=0 + ulong_arg_2=0 + ulong_count=0 + for U in $(echo $args | sed -e "s/.*:/:/" | grep -ob U) + do + ulong_count=$(expr $ulong_count + 1) + ulong_arg=$(echo $U | sed -e "s/:U//") + case $ulong_count in + 1) + ulong_arg_1=$ulong_arg + ;; + 2) + ulong_arg_2=$ulong_arg + ;; + *) + echo >&2 "$0: Too many unsigned long int arguments for syscall ($strong $weak)" + exit 2 + esac + done + # Make sure only the first syscall rule is used, if multiple dirs # define the same syscall. echo '' @@ -245,6 +267,8 @@ while read file srcfile caller syscall args strong weak; do \$(make-target-directory) (echo '#define SYSCALL_NAME $syscall'; \\ echo '#define SYSCALL_NARGS $nargs'; \\ + echo '#define SYSCALL_ULONG_ARG_1 $ulong_arg_1'; \\ + echo '#define SYSCALL_ULONG_ARG_2 $ulong_arg_2'; \\ echo '#define SYSCALL_SYMBOL $strong'; \\ echo '#define SYSCALL_NOERRNO $noerrno'; \\ echo '#define SYSCALL_ERRVAL $errval'; \\ diff --git a/sysdeps/unix/syscall-template.S b/sysdeps/unix/syscall-template.S index cf6c7a58f..f807a8603 100644 --- a/sysdeps/unix/syscall-template.S +++ b/sysdeps/unix/syscall-template.S @@ -25,6 +25,12 @@ defining a few macros: SYSCALL_NAME syscall name SYSCALL_NARGS number of arguments this call takes + SYSCALL_ULONG_ARG_1 the first unsigned long int argument this + call takes. 0 means that there are no + unsigned long int arguments. + SYSCALL_ULONG_ARG_2 the second unsigned long int argument this + call takes. 0 means that there is at most + one unsigned long int argument. SYSCALL_SYMBOL primary symbol name SYSCALL_NOERRNO 1 to define a no-errno version (see below) SYSCALL_ERRVAL 1 to define an error-value version (see below) @@ -44,9 +50,31 @@ /* This indirection is needed so that SYMBOL gets macro-expanded. */ #define syscall_hidden_def(SYMBOL) hidden_def (SYMBOL) -#define T_PSEUDO(SYMBOL, NAME, N) PSEUDO (SYMBOL, NAME, N) -#define T_PSEUDO_NOERRNO(SYMBOL, NAME, N) PSEUDO_NOERRNO (SYMBOL, NAME, N) -#define T_PSEUDO_ERRVAL(SYMBOL, NAME, N) PSEUDO_ERRVAL (SYMBOL, NAME, N) +/* If PSEUDOS_HAVE_ULONG_INDICES is defined, PSEUDO and T_PSEUDO macros + have 2 extra arguments for unsigned long int arguments: + Extra argument 1: Position of the first unsigned long int argument. + Extra argument 2: Position of the second unsigned long int argument. + */ +#ifndef PSEUDOS_HAVE_ULONG_INDICES +# undef SYSCALL_ULONG_ARG_1 +# define SYSCALL_ULONG_ARG_1 0 +#endif + +#if SYSCALL_ULONG_ARG_1 +# define T_PSEUDO(SYMBOL, NAME, N, U1, U2) \ + PSEUDO (SYMBOL, NAME, N, U1, U2) +# define T_PSEUDO_NOERRNO(SYMBOL, NAME, N, U1, U2) \ + PSEUDO_NOERRNO (SYMBOL, NAME, N, U1, U2) +# define T_PSEUDO_ERRVAL(SYMBOL, NAME, N, U1, U2) \ + PSEUDO_ERRVAL (SYMBOL, NAME, N, U1, U2) +#else +# define T_PSEUDO(SYMBOL, NAME, N) \ + PSEUDO (SYMBOL, NAME, N) +# define T_PSEUDO_NOERRNO(SYMBOL, NAME, N) \ + PSEUDO_NOERRNO (SYMBOL, NAME, N) +# define T_PSEUDO_ERRVAL(SYMBOL, NAME, N) \ + PSEUDO_ERRVAL (SYMBOL, NAME, N) +#endif #define T_PSEUDO_END(SYMBOL) PSEUDO_END (SYMBOL) #define T_PSEUDO_END_NOERRNO(SYMBOL) PSEUDO_END_NOERRNO (SYMBOL) #define T_PSEUDO_END_ERRVAL(SYMBOL) PSEUDO_END_ERRVAL (SYMBOL) @@ -56,7 +84,12 @@ /* This kind of system call stub never returns an error. We return the return value register to the caller unexamined. */ +# if SYSCALL_ULONG_ARG_1 +T_PSEUDO_NOERRNO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS, + SYSCALL_ULONG_ARG_1, SYSCALL_ULONG_ARG_2) +# else T_PSEUDO_NOERRNO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS) +# endif ret_NOERRNO T_PSEUDO_END_NOERRNO (SYSCALL_SYMBOL) @@ -66,7 +99,12 @@ T_PSEUDO_END_NOERRNO (SYSCALL_SYMBOL) value, or zero for success. We may massage the kernel's return value to meet that ABI, but we never set errno here. */ +# if SYSCALL_ULONG_ARG_1 +T_PSEUDO_ERRVAL (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS, + SYSCALL_ULONG_ARG_1, SYSCALL_ULONG_ARG_2) +# else T_PSEUDO_ERRVAL (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS) +# endif ret_ERRVAL T_PSEUDO_END_ERRVAL (SYSCALL_SYMBOL) @@ -75,7 +113,12 @@ T_PSEUDO_END_ERRVAL (SYSCALL_SYMBOL) /* This is a "normal" system call stub: if there is an error, it returns -1 and sets errno. */ +# if SYSCALL_ULONG_ARG_1 +T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS, + SYSCALL_ULONG_ARG_1, SYSCALL_ULONG_ARG_2) +# else T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS) +# endif ret T_PSEUDO_END (SYSCALL_SYMBOL) diff --git a/sysdeps/unix/syscalls.list b/sysdeps/unix/syscalls.list index e28e801c7..6b22b2cb4 100644 --- a/sysdeps/unix/syscalls.list +++ b/sysdeps/unix/syscalls.list @@ -39,27 +39,27 @@ kill - kill i:ii __kill kill link - link i:ss __link link listen - listen i:ii __listen listen lseek - lseek i:iii __libc_lseek __lseek lseek -madvise - madvise i:pii __madvise madvise +madvise - madvise i:pUi __madvise madvise mkdir - mkdir i:si __mkdir mkdir -mmap - mmap b:aniiii __mmap mmap -mprotect - mprotect i:aii __mprotect mprotect -munmap - munmap i:ai __munmap munmap +mmap - mmap b:aUiiii __mmap mmap +mprotect - mprotect i:aUi __mprotect mprotect +munmap - munmap i:aU __munmap munmap open - open Ci:siv __libc_open __open open profil - profil i:piii __profil profil ptrace - ptrace i:iiii ptrace -read - read Ci:ibn __libc_read __read read -readlink - readlink i:spi __readlink readlink +read - read Ci:ibU __libc_read __read read +readlink - readlink i:spU __readlink readlink readv - readv Ci:ipi __readv readv reboot - reboot i:i reboot -recv - recv Ci:ibni __libc_recv recv -recvfrom - recvfrom Ci:ibniBN __libc_recvfrom __recvfrom recvfrom +recv - recv Ci:ibUi __libc_recv recv +recvfrom - recvfrom Ci:ibUiBN __libc_recvfrom __recvfrom recvfrom recvmsg - recvmsg Ci:ipi __libc_recvmsg __recvmsg recvmsg rename - rename i:ss rename rmdir - rmdir i:s __rmdir rmdir select - select Ci:iPPPP __select __libc_select select -send - send Ci:ibni __libc_send __send send +send - send Ci:ibUi __libc_send __send send sendmsg - sendmsg Ci:ipi __libc_sendmsg __sendmsg sendmsg -sendto - sendto Ci:ibnibn __libc_sendto __sendto sendto +sendto - sendto Ci:ibUibn __libc_sendto __sendto sendto setdomain - setdomainname i:si setdomainname setegid - setegid i:i __setegid setegid seteuid - seteuid i:i __seteuid seteuid @@ -94,5 +94,5 @@ uname - uname i:p __uname uname unlink - unlink i:s __unlink unlink utimes - utimes i:sp __utimes utimes vhangup - vhangup i:i vhangup -write - write Ci:ibn __libc_write __write write +write - write Ci:ibU __libc_write __write write writev - writev Ci:ipi __writev writev diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile index f12b7b1a2..5fbde369c 100644 --- a/sysdeps/unix/sysv/linux/Makefile +++ b/sysdeps/unix/sysv/linux/Makefile @@ -60,7 +60,9 @@ sysdep_routines += adjtimex clone umount umount2 readahead \ setfsuid setfsgid epoll_pwait signalfd \ eventfd eventfd_read eventfd_write prlimit \ personality epoll_wait tee vmsplice splice \ - open_by_handle_at mlock2 pkey_mprotect pkey_set pkey_get + open_by_handle_at mlock2 pkey_mprotect pkey_set pkey_get \ + prctl \ + process_vm_readv process_vm_writev CFLAGS-gethostid.c = -fexceptions CFLAGS-tee.c = -fexceptions -fasynchronous-unwind-tables diff --git a/sysdeps/unix/sysv/linux/aarch64/arch-syscall.h b/sysdeps/unix/sysv/linux/aarch64/arch-syscall.h index 937838774..c8471947b 100644 --- a/sysdeps/unix/sysv/linux/aarch64/arch-syscall.h +++ b/sysdeps/unix/sysv/linux/aarch64/arch-syscall.h @@ -17,6 +17,7 @@ #define __NR_clock_nanosleep 115 #define __NR_clock_settime 112 #define __NR_clone 220 +#define __NR_clone3 435 #define __NR_close 57 #define __NR_connect 203 #define __NR_copy_file_range 285 diff --git a/sysdeps/unix/sysv/linux/aarch64/localplt.data b/sysdeps/unix/sysv/linux/aarch64/localplt.data index a60053b91..08af68b5e 100644 --- a/sysdeps/unix/sysv/linux/aarch64/localplt.data +++ b/sysdeps/unix/sysv/linux/aarch64/localplt.data @@ -7,6 +7,9 @@ libc.so: malloc libc.so: memalign libc.so: realloc libm.so: matherr +# If outline atomics are used, libgcc (built outside of glibc) may +# call __getauxval using the PLT. +libc.so: __getauxval ? # The dynamic loader needs __tls_get_addr for TLS. ld.so: __tls_get_addr # The main malloc is interposed into the dynamic linker, for diff --git a/sysdeps/unix/sysv/linux/hppa/atomic-machine.h b/sysdeps/unix/sysv/linux/hppa/atomic-machine.h index 9d8ffbe86..bf61b66b7 100644 --- a/sysdeps/unix/sysv/linux/hppa/atomic-machine.h +++ b/sysdeps/unix/sysv/linux/hppa/atomic-machine.h @@ -36,9 +36,37 @@ typedef uintptr_t uatomicptr_t; typedef intmax_t atomic_max_t; typedef uintmax_t uatomic_max_t; +#define atomic_full_barrier() __sync_synchronize () + #define __HAVE_64B_ATOMICS 0 #define USE_ATOMIC_COMPILER_BUILTINS 0 +/* We use the compiler atomic load and store builtins as the generic + defines are not atomic. In particular, we need to use compare and + exchange for stores as the implementation is synthesized. */ +void __atomic_link_error (void); +#define __atomic_check_size_ls(mem) \ + if ((sizeof (*mem) != 1) && (sizeof (*mem) != 2) && sizeof (*mem) != 4) \ + __atomic_link_error (); + +#define atomic_load_relaxed(mem) \ + ({ __atomic_check_size_ls((mem)); \ + __atomic_load_n ((mem), __ATOMIC_RELAXED); }) +#define atomic_load_acquire(mem) \ + ({ __atomic_check_size_ls((mem)); \ + __atomic_load_n ((mem), __ATOMIC_ACQUIRE); }) + +#define atomic_store_relaxed(mem, val) \ + do { \ + __atomic_check_size_ls((mem)); \ + __atomic_store_n ((mem), (val), __ATOMIC_RELAXED); \ + } while (0) +#define atomic_store_release(mem, val) \ + do { \ + __atomic_check_size_ls((mem)); \ + __atomic_store_n ((mem), (val), __ATOMIC_RELEASE); \ + } while (0) + /* XXX Is this actually correct? */ #define ATOMIC_EXCHANGE_USES_CAS 1 diff --git a/sysdeps/unix/sysv/linux/microblaze/sysdep.h b/sysdeps/unix/sysv/linux/microblaze/sysdep.h index ed873d9dd..796663a23 100644 --- a/sysdeps/unix/sysv/linux/microblaze/sysdep.h +++ b/sysdeps/unix/sysv/linux/microblaze/sysdep.h @@ -209,8 +209,8 @@ SYSCALL_ERROR_LABEL_DCL: \ # define inline_syscall0(name,dummy) \ ({ \ - register long __ret __asm__("r3"); \ - register long __r12 __asm__("r12") = name; \ + register long int __ret __asm__("r3"); \ + register long int __r12 __asm__("r12") = name; \ __asm__ __volatile__( "brki r14,8; nop;" \ : "=r"(__ret) \ : "r"(__r12) \ @@ -219,9 +219,10 @@ SYSCALL_ERROR_LABEL_DCL: \ # define inline_syscall1(name,arg1) \ ({ \ - register long __ret __asm__("r3"); \ - register long __r12 __asm__("r12") = name; \ - register long __r5 __asm__("r5") = (long)(arg1); \ + long int __arg1 = (long int) (arg1); \ + register long int __ret __asm__("r3"); \ + register long int __r12 __asm__("r12") = name; \ + register long int __r5 __asm__("r5") = __arg1; \ __asm__ __volatile__( "brki r14,8; nop;" \ : "=r"(__ret) \ : "r"(__r5), "r"(__r12) \ @@ -230,10 +231,12 @@ SYSCALL_ERROR_LABEL_DCL: \ # define inline_syscall2(name,arg1,arg2) \ ({ \ - register long __ret __asm__("r3"); \ - register long __r12 __asm__("r12") = name; \ - register long __r5 __asm__("r5") = (long)(arg1); \ - register long __r6 __asm__("r6") = (long)(arg2); \ + long int __arg1 = (long int) (arg1); \ + long int __arg2 = (long int) (arg2); \ + register long int __ret __asm__("r3"); \ + register long int __r12 __asm__("r12") = name; \ + register long int __r5 __asm__("r5") = __arg1; \ + register long int __r6 __asm__("r6") = __arg2; \ __asm__ __volatile__( "brki r14,8; nop;" \ : "=r"(__ret) \ : "r"(__r5), "r"(__r6), "r"(__r12) \ @@ -243,11 +246,14 @@ SYSCALL_ERROR_LABEL_DCL: \ # define inline_syscall3(name,arg1,arg2,arg3) \ ({ \ - register long __ret __asm__("r3"); \ - register long __r12 __asm__("r12") = name; \ - register long __r5 __asm__("r5") = (long)(arg1); \ - register long __r6 __asm__("r6") = (long)(arg2); \ - register long __r7 __asm__("r7") = (long)(arg3); \ + long int __arg1 = (long int) (arg1); \ + long int __arg2 = (long int) (arg2); \ + long int __arg3 = (long int) (arg3); \ + register long int __ret __asm__("r3"); \ + register long int __r12 __asm__("r12") = name; \ + register long int __r5 __asm__("r5") = __arg1; \ + register long int __r6 __asm__("r6") = __arg2; \ + register long int __r7 __asm__("r7") = __arg3; \ __asm__ __volatile__( "brki r14,8; nop;" \ : "=r"(__ret) \ : "r"(__r5), "r"(__r6), "r"(__r7), "r"(__r12) \ @@ -257,12 +263,16 @@ SYSCALL_ERROR_LABEL_DCL: \ # define inline_syscall4(name,arg1,arg2,arg3,arg4) \ ({ \ - register long __ret __asm__("r3"); \ - register long __r12 __asm__("r12") = name; \ - register long __r5 __asm__("r5") = (long)(arg1); \ - register long __r6 __asm__("r6") = (long)(arg2); \ - register long __r7 __asm__("r7") = (long)(arg3); \ - register long __r8 __asm__("r8") = (long)(arg4); \ + long int __arg1 = (long int) (arg1); \ + long int __arg2 = (long int) (arg2); \ + long int __arg3 = (long int) (arg3); \ + long int __arg4 = (long int) (arg4); \ + register long int __ret __asm__("r3"); \ + register long int __r12 __asm__("r12") = name; \ + register long int __r5 __asm__("r5") = __arg1; \ + register long int __r6 __asm__("r6") = __arg2; \ + register long int __r7 __asm__("r7") = __arg3; \ + register long int __r8 __asm__("r8") = __arg4; \ __asm__ __volatile__( "brki r14,8; nop;" \ : "=r"(__ret) \ : "r"(__r5), "r"(__r6), "r"(__r7), "r"(__r8),"r"(__r12) \ @@ -272,13 +282,18 @@ SYSCALL_ERROR_LABEL_DCL: \ # define inline_syscall5(name,arg1,arg2,arg3,arg4,arg5) \ ({ \ - register long __ret __asm__("r3"); \ - register long __r12 __asm__("r12") = name; \ - register long __r5 __asm__("r5") = (long)(arg1); \ - register long __r6 __asm__("r6") = (long)(arg2); \ - register long __r7 __asm__("r7") = (long)(arg3); \ - register long __r8 __asm__("r8") = (long)(arg4); \ - register long __r9 __asm__("r9") = (long)(arg5); \ + long int __arg1 = (long int) (arg1); \ + long int __arg2 = (long int) (arg2); \ + long int __arg3 = (long int) (arg3); \ + long int __arg4 = (long int) (arg4); \ + long int __arg5 = (long int) (arg5); \ + register long int __ret __asm__("r3"); \ + register long int __r12 __asm__("r12") = name; \ + register long int __r5 __asm__("r5") = __arg1; \ + register long int __r6 __asm__("r6") = __arg2; \ + register long int __r7 __asm__("r7") = __arg3; \ + register long int __r8 __asm__("r8") = __arg4; \ + register long int __r9 __asm__("r9") = __arg5; \ __asm__ __volatile__( "brki r14,8; nop;" \ : "=r"(__ret) \ : "r"(__r5), "r"(__r6), "r"(__r7), "r"(__r8),"r"(__r9), "r"(__r12) \ @@ -288,14 +303,20 @@ SYSCALL_ERROR_LABEL_DCL: \ # define inline_syscall6(name,arg1,arg2,arg3,arg4,arg5,arg6) \ ({ \ - register long __ret __asm__("r3"); \ - register long __r12 __asm__("r12") = name; \ - register long __r5 __asm__("r5") = (long)(arg1); \ - register long __r6 __asm__("r6") = (long)(arg2); \ - register long __r7 __asm__("r7") = (long)(arg3); \ - register long __r8 __asm__("r8") = (long)(arg4); \ - register long __r9 __asm__("r9") = (long)(arg5); \ - register long __r10 __asm__("r10") = (long)(arg6); \ + long int __arg1 = (long int) (arg1); \ + long int __arg2 = (long int) (arg2); \ + long int __arg3 = (long int) (arg3); \ + long int __arg4 = (long int) (arg4); \ + long int __arg5 = (long int) (arg5); \ + long int __arg6 = (long int) (arg6); \ + register long int __ret __asm__("r3"); \ + register long int __r12 __asm__("r12") = name; \ + register long int __r5 __asm__("r5") = __arg1; \ + register long int __r6 __asm__("r6") = __arg2; \ + register long int __r7 __asm__("r7") = __arg3; \ + register long int __r8 __asm__("r8") = __arg4; \ + register long int __r9 __asm__("r9") = __arg5; \ + register long int __r10 __asm__("r10") = __arg6; \ __asm__ __volatile__( "brki r14,8; nop;" \ : "=r"(__ret) \ : "r"(__r5), "r"(__r6), "r"(__r7), "r"(__r8),"r"(__r9), "r"(__r10), \ diff --git a/sysdeps/unix/sysv/linux/mips/mips32/mips-syscall5.S b/sysdeps/unix/sysv/linux/mips/mips32/mips-syscall5.S index b2bbf1018..ff445a540 100644 --- a/sysdeps/unix/sysv/linux/mips/mips32/mips-syscall5.S +++ b/sysdeps/unix/sysv/linux/mips/mips32/mips-syscall5.S @@ -22,9 +22,9 @@ .text .set nomips16 -/* long long __mips_syscall5 (long arg1, long arg2, long arg3, long arg4, - long arg5, - long number) */ +/* long long int __mips_syscall5 (long int arg1, long int arg2, long int arg3, + long int arg4, long int arg5, + long int number) */ ENTRY(__mips_syscall5) lw v0, 20(sp) diff --git a/sysdeps/unix/sysv/linux/mips/mips32/mips-syscall6.S b/sysdeps/unix/sysv/linux/mips/mips32/mips-syscall6.S index 572d7c113..2b4a3117d 100644 --- a/sysdeps/unix/sysv/linux/mips/mips32/mips-syscall6.S +++ b/sysdeps/unix/sysv/linux/mips/mips32/mips-syscall6.S @@ -22,9 +22,9 @@ .text .set nomips16 -/* long long __mips_syscall6 (long arg1, long arg2, long arg3, long arg4, - long arg5, long arg6, - long number) */ +/* long long int __mips_syscall6 (long int arg1, long int arg2, long int arg3, + long int arg4, long int arg5, long int arg6, + long int number) */ ENTRY(__mips_syscall6) lw v0, 24(sp) diff --git a/sysdeps/unix/sysv/linux/mips/mips32/mips-syscall7.S b/sysdeps/unix/sysv/linux/mips/mips32/mips-syscall7.S index 05164cb25..2723bbb13 100644 --- a/sysdeps/unix/sysv/linux/mips/mips32/mips-syscall7.S +++ b/sysdeps/unix/sysv/linux/mips/mips32/mips-syscall7.S @@ -22,9 +22,10 @@ .text .set nomips16 -/* long long __mips_syscall7 (long arg1, long arg2, long arg3, long arg4, - long arg5, long arg6, long arg7, - long number) */ +/* long long int __mips_syscall7 (long int arg1, long int arg2, long int arg3, + long int arg4, long int arg5, long int arg6, + long int arg7, + long int number) */ ENTRY(__mips_syscall7) lw v0, 28(sp) diff --git a/sysdeps/unix/sysv/linux/mips/mips32/mips16/mips16-syscall.h b/sysdeps/unix/sysv/linux/mips/mips32/mips16/mips16-syscall.h index 9bf551ace..f23ede025 100644 --- a/sysdeps/unix/sysv/linux/mips/mips32/mips16/mips16-syscall.h +++ b/sysdeps/unix/sysv/linux/mips/mips32/mips16/mips16-syscall.h @@ -19,51 +19,57 @@ #ifndef MIPS16_SYSCALL_H #define MIPS16_SYSCALL_H 1 -long long __nomips16 __mips16_syscall0 (long number); +long long int __nomips16 __mips16_syscall0 (long int number); #define __mips16_syscall0(dummy, number) \ - __mips16_syscall0 ((long) (number)) + __mips16_syscall0 ((long int) (number)) -long long __nomips16 __mips16_syscall1 (long a0, - long number); +long long int __nomips16 __mips16_syscall1 (long int a0, + long int number); #define __mips16_syscall1(a0, number) \ - __mips16_syscall1 ((long) (a0), \ - (long) (number)) + __mips16_syscall1 ((long int) (a0), \ + (long int) (number)) -long long __nomips16 __mips16_syscall2 (long a0, long a1, - long number); +long long int __nomips16 __mips16_syscall2 (long int a0, long int a1, + long int number); #define __mips16_syscall2(a0, a1, number) \ - __mips16_syscall2 ((long) (a0), (long) (a1), \ - (long) (number)) + __mips16_syscall2 ((long int) (a0), (long int) (a1), \ + (long int) (number)) -long long __nomips16 __mips16_syscall3 (long a0, long a1, long a2, - long number); +long long int __nomips16 __mips16_syscall3 (long int a0, long int a1, + long int a2, + long int number); #define __mips16_syscall3(a0, a1, a2, number) \ - __mips16_syscall3 ((long) (a0), (long) (a1), (long) (a2), \ - (long) (number)) + __mips16_syscall3 ((long int) (a0), (long int) (a1), \ + (long int) (a2), \ + (long int) (number)) -long long __nomips16 __mips16_syscall4 (long a0, long a1, long a2, long a3, - long number); +long long int __nomips16 __mips16_syscall4 (long int a0, long int a1, + long int a2, long int a3, + long int number); #define __mips16_syscall4(a0, a1, a2, a3, number) \ - __mips16_syscall4 ((long) (a0), (long) (a1), (long) (a2), \ - (long) (a3), \ - (long) (number)) + __mips16_syscall4 ((long int) (a0), (long int) (a1), \ + (long int) (a2), (long int) (a3), \ + (long int) (number)) /* The remaining ones use regular MIPS wrappers. */ #define __mips16_syscall5(a0, a1, a2, a3, a4, number) \ - __mips_syscall5 ((long) (a0), (long) (a1), (long) (a2), \ - (long) (a3), (long) (a4), \ - (long) (number)) + __mips_syscall5 ((long int) (a0), (long int) (a1), \ + (long int) (a2), (long int) (a3), \ + (long int) (a4), \ + (long int) (number)) #define __mips16_syscall6(a0, a1, a2, a3, a4, a5, number) \ - __mips_syscall6 ((long) (a0), (long) (a1), (long) (a2), \ - (long) (a3), (long) (a4), (long) (a5), \ - (long) (number)) + __mips_syscall6 ((long int) (a0), (long int) (a1), \ + (long int) (a2), (long int) (a3), \ + (long int) (a4), (long int) (a5), \ + (long int) (number)) #define __mips16_syscall7(a0, a1, a2, a3, a4, a5, a6, number) \ - __mips_syscall7 ((long) (a0), (long) (a1), (long) (a2), \ - (long) (a3), (long) (a4), (long) (a5), \ - (long) (a6), \ - (long) (number)) + __mips_syscall7 ((long int) (a0), (long int) (a1), \ + (long int) (a2), (long int) (a3), \ + (long int) (a4), (long int) (a5), \ + (long int) (a6), \ + (long int) (number)) #endif diff --git a/sysdeps/unix/sysv/linux/mips/mips32/mips16/mips16-syscall0.c b/sysdeps/unix/sysv/linux/mips/mips32/mips16/mips16-syscall0.c index 92f16e272..43c05f805 100644 --- a/sysdeps/unix/sysv/linux/mips/mips32/mips16/mips16-syscall0.c +++ b/sysdeps/unix/sysv/linux/mips/mips32/mips16/mips16-syscall0.c @@ -20,8 +20,8 @@ #undef __mips16_syscall0 -long long __nomips16 -__mips16_syscall0 (long number) +long long int __nomips16 +__mips16_syscall0 (long int number) { union __mips_syscall_return ret; ret.reg.v0 = INTERNAL_SYSCALL_MIPS16 (number, ret.reg.v1, 0); diff --git a/sysdeps/unix/sysv/linux/mips/mips32/mips16/mips16-syscall1.c b/sysdeps/unix/sysv/linux/mips/mips32/mips16/mips16-syscall1.c index fa985a96e..16a567e83 100644 --- a/sysdeps/unix/sysv/linux/mips/mips32/mips16/mips16-syscall1.c +++ b/sysdeps/unix/sysv/linux/mips/mips32/mips16/mips16-syscall1.c @@ -20,9 +20,9 @@ #undef __mips16_syscall1 -long long __nomips16 -__mips16_syscall1 (long a0, - long number) +long long int __nomips16 +__mips16_syscall1 (long int a0, + long int number) { union __mips_syscall_return ret; ret.reg.v0 = INTERNAL_SYSCALL_MIPS16 (number, ret.reg.v1, 1, diff --git a/sysdeps/unix/sysv/linux/mips/mips32/mips16/mips16-syscall2.c b/sysdeps/unix/sysv/linux/mips/mips32/mips16/mips16-syscall2.c index f042ac815..c0a856c34 100644 --- a/sysdeps/unix/sysv/linux/mips/mips32/mips16/mips16-syscall2.c +++ b/sysdeps/unix/sysv/linux/mips/mips32/mips16/mips16-syscall2.c @@ -20,9 +20,9 @@ #undef __mips16_syscall2 -long long __nomips16 -__mips16_syscall2 (long a0, long a1, - long number) +long long int __nomips16 +__mips16_syscall2 (long int a0, long int a1, + long int number) { union __mips_syscall_return ret; ret.reg.v0 = INTERNAL_SYSCALL_MIPS16 (number, ret.reg.v1, 2, diff --git a/sysdeps/unix/sysv/linux/mips/mips32/mips16/mips16-syscall3.c b/sysdeps/unix/sysv/linux/mips/mips32/mips16/mips16-syscall3.c index dfe2f7feb..042768ebf 100644 --- a/sysdeps/unix/sysv/linux/mips/mips32/mips16/mips16-syscall3.c +++ b/sysdeps/unix/sysv/linux/mips/mips32/mips16/mips16-syscall3.c @@ -20,9 +20,9 @@ #undef __mips16_syscall3 -long long __nomips16 -__mips16_syscall3 (long a0, long a1, long a2, - long number) +long long int __nomips16 +__mips16_syscall3 (long int a0, long int a1, long int a2, + long int number) { union __mips_syscall_return ret; ret.reg.v0 = INTERNAL_SYSCALL_MIPS16 (number, ret.reg.v1, 3, diff --git a/sysdeps/unix/sysv/linux/mips/mips32/mips16/mips16-syscall4.c b/sysdeps/unix/sysv/linux/mips/mips32/mips16/mips16-syscall4.c index 39de51035..8658d822a 100644 --- a/sysdeps/unix/sysv/linux/mips/mips32/mips16/mips16-syscall4.c +++ b/sysdeps/unix/sysv/linux/mips/mips32/mips16/mips16-syscall4.c @@ -20,9 +20,9 @@ #undef __mips16_syscall4 -long long __nomips16 -__mips16_syscall4 (long a0, long a1, long a2, long a3, - long number) +long long int __nomips16 +__mips16_syscall4 (long int a0, long int a1, long int a2, long int a3, + long int number) { union __mips_syscall_return ret; ret.reg.v0 = INTERNAL_SYSCALL_MIPS16 (number, ret.reg.v1, 4, diff --git a/sysdeps/unix/sysv/linux/mips/mips32/sysdep.h b/sysdeps/unix/sysv/linux/mips/mips32/sysdep.h index beefcf284..0c6a83e9b 100644 --- a/sysdeps/unix/sysv/linux/mips/mips32/sysdep.h +++ b/sysdeps/unix/sysv/linux/mips/mips32/sysdep.h @@ -52,7 +52,7 @@ #undef INLINE_SYSCALL #define INLINE_SYSCALL(name, nr, args...) \ ({ INTERNAL_SYSCALL_DECL (_sc_err); \ - long result_var = INTERNAL_SYSCALL (name, _sc_err, nr, args); \ + long int result_var = INTERNAL_SYSCALL (name, _sc_err, nr, args); \ if ( INTERNAL_SYSCALL_ERROR_P (result_var, _sc_err) ) \ { \ __set_errno (INTERNAL_SYSCALL_ERRNO (result_var, _sc_err)); \ @@ -61,10 +61,10 @@ result_var; }) #undef INTERNAL_SYSCALL_DECL -#define INTERNAL_SYSCALL_DECL(err) long err __attribute__ ((unused)) +#define INTERNAL_SYSCALL_DECL(err) long int err __attribute__ ((unused)) #undef INTERNAL_SYSCALL_ERROR_P -#define INTERNAL_SYSCALL_ERROR_P(val, err) ((void) (val), (long) (err)) +#define INTERNAL_SYSCALL_ERROR_P(val, err) ((void) (val), (long int) (err)) #undef INTERNAL_SYSCALL_ERRNO #define INTERNAL_SYSCALL_ERRNO(val, err) ((void) (err), val) @@ -103,11 +103,11 @@ union __mips_syscall_return { - long long val; + long long int val; struct { - long v0; - long v1; + long int v0; + long int v1; } reg; }; @@ -152,13 +152,13 @@ union __mips_syscall_return #define internal_syscall0(v0_init, input, number, err, dummy...) \ ({ \ - long _sys_result; \ + long int _sys_result; \ \ { \ - register long __s0 asm ("$16") __attribute__ ((unused)) \ + register long int __s0 asm ("$16") __attribute__ ((unused)) \ = (number); \ - register long __v0 asm ("$2"); \ - register long __a3 asm ("$7"); \ + register long int __v0 asm ("$2"); \ + register long int __a3 asm ("$7"); \ __asm__ volatile ( \ ".set\tnoreorder\n\t" \ v0_init \ @@ -175,14 +175,15 @@ union __mips_syscall_return #define internal_syscall1(v0_init, input, number, err, arg1) \ ({ \ - long _sys_result; \ + long int _sys_result; \ \ { \ - register long __s0 asm ("$16") __attribute__ ((unused)) \ + long int _arg1 = (long int) (arg1); \ + register long int __s0 asm ("$16") __attribute__ ((unused)) \ = (number); \ - register long __v0 asm ("$2"); \ - register long __a0 asm ("$4") = (long) (arg1); \ - register long __a3 asm ("$7"); \ + register long int __v0 asm ("$2"); \ + register long int __a0 asm ("$4") = _arg1; \ + register long int __a3 asm ("$7"); \ __asm__ volatile ( \ ".set\tnoreorder\n\t" \ v0_init \ @@ -199,15 +200,17 @@ union __mips_syscall_return #define internal_syscall2(v0_init, input, number, err, arg1, arg2) \ ({ \ - long _sys_result; \ + long int _sys_result; \ \ { \ - register long __s0 asm ("$16") __attribute__ ((unused)) \ + long int _arg1 = (long int) (arg1); \ + long int _arg2 = (long int) (arg2); \ + register long int __s0 asm ("$16") __attribute__ ((unused)) \ = (number); \ - register long __v0 asm ("$2"); \ - register long __a0 asm ("$4") = (long) (arg1); \ - register long __a1 asm ("$5") = (long) (arg2); \ - register long __a3 asm ("$7"); \ + register long int __v0 asm ("$2"); \ + register long int __a0 asm ("$4") = _arg1; \ + register long int __a1 asm ("$5") = _arg2; \ + register long int __a3 asm ("$7"); \ __asm__ volatile ( \ ".set\tnoreorder\n\t" \ v0_init \ @@ -225,16 +228,19 @@ union __mips_syscall_return #define internal_syscall3(v0_init, input, number, err, \ arg1, arg2, arg3) \ ({ \ - long _sys_result; \ + long int _sys_result; \ \ { \ - register long __s0 asm ("$16") __attribute__ ((unused)) \ + long int _arg1 = (long int) (arg1); \ + long int _arg2 = (long int) (arg2); \ + long int _arg3 = (long int) (arg3); \ + register long int __s0 asm ("$16") __attribute__ ((unused)) \ = (number); \ - register long __v0 asm ("$2"); \ - register long __a0 asm ("$4") = (long) (arg1); \ - register long __a1 asm ("$5") = (long) (arg2); \ - register long __a2 asm ("$6") = (long) (arg3); \ - register long __a3 asm ("$7"); \ + register long int __v0 asm ("$2"); \ + register long int __a0 asm ("$4") = _arg1; \ + register long int __a1 asm ("$5") = _arg2; \ + register long int __a2 asm ("$6") = _arg3; \ + register long int __a3 asm ("$7"); \ __asm__ volatile ( \ ".set\tnoreorder\n\t" \ v0_init \ @@ -252,16 +258,20 @@ union __mips_syscall_return #define internal_syscall4(v0_init, input, number, err, \ arg1, arg2, arg3, arg4) \ ({ \ - long _sys_result; \ + long int _sys_result; \ \ { \ - register long __s0 asm ("$16") __attribute__ ((unused)) \ + long int _arg1 = (long int) (arg1); \ + long int _arg2 = (long int) (arg2); \ + long int _arg3 = (long int) (arg3); \ + long int _arg4 = (long int) (arg4); \ + register long int __s0 asm ("$16") __attribute__ ((unused)) \ = (number); \ - register long __v0 asm ("$2"); \ - register long __a0 asm ("$4") = (long) (arg1); \ - register long __a1 asm ("$5") = (long) (arg2); \ - register long __a2 asm ("$6") = (long) (arg3); \ - register long __a3 asm ("$7") = (long) (arg4); \ + register long int __v0 asm ("$2"); \ + register long int __a0 asm ("$4") = _arg1; \ + register long int __a1 asm ("$5") = _arg2; \ + register long int __a2 asm ("$6") = _arg3; \ + register long int __a3 asm ("$7") = _arg4; \ __asm__ volatile ( \ ".set\tnoreorder\n\t" \ v0_init \ @@ -285,63 +295,66 @@ union __mips_syscall_return compiler specifics required for the stack arguments to be pushed, which would be the case if these syscalls were inlined. */ -long long __nomips16 __mips_syscall5 (long arg1, long arg2, long arg3, - long arg4, long arg5, - long number); +long long int __nomips16 __mips_syscall5 (long int arg1, long int arg2, + long int arg3, long int arg4, + long int arg5, + long int number); libc_hidden_proto (__mips_syscall5, nomips16) #define internal_syscall5(v0_init, input, number, err, \ arg1, arg2, arg3, arg4, arg5) \ ({ \ union __mips_syscall_return _sc_ret; \ - _sc_ret.val = __mips_syscall5 ((long) (arg1), \ - (long) (arg2), \ - (long) (arg3), \ - (long) (arg4), \ - (long) (arg5), \ - (long) (number)); \ + _sc_ret.val = __mips_syscall5 ((long int) (arg1), \ + (long int) (arg2), \ + (long int) (arg3), \ + (long int) (arg4), \ + (long int) (arg5), \ + (long int) (number)); \ err = _sc_ret.reg.v1; \ _sc_ret.reg.v0; \ }) -long long __nomips16 __mips_syscall6 (long arg1, long arg2, long arg3, - long arg4, long arg5, long arg6, - long number); +long long int __nomips16 __mips_syscall6 (long int arg1, long int arg2, + long int arg3, long int arg4, + long int arg5, long int arg6, + long int number); libc_hidden_proto (__mips_syscall6, nomips16) #define internal_syscall6(v0_init, input, number, err, \ arg1, arg2, arg3, arg4, arg5, arg6) \ ({ \ union __mips_syscall_return _sc_ret; \ - _sc_ret.val = __mips_syscall6 ((long) (arg1), \ - (long) (arg2), \ - (long) (arg3), \ - (long) (arg4), \ - (long) (arg5), \ - (long) (arg6), \ - (long) (number)); \ + _sc_ret.val = __mips_syscall6 ((long int) (arg1), \ + (long int) (arg2), \ + (long int) (arg3), \ + (long int) (arg4), \ + (long int) (arg5), \ + (long int) (arg6), \ + (long int) (number)); \ err = _sc_ret.reg.v1; \ _sc_ret.reg.v0; \ }) -long long __nomips16 __mips_syscall7 (long arg1, long arg2, long arg3, - long arg4, long arg5, long arg6, - long arg7, - long number); +long long int __nomips16 __mips_syscall7 (long int arg1, long int arg2, + long int arg3, long int arg4, + long int arg5, long int arg6, + long int arg7, + long int number); libc_hidden_proto (__mips_syscall7, nomips16) #define internal_syscall7(v0_init, input, number, err, \ arg1, arg2, arg3, arg4, arg5, arg6, arg7) \ ({ \ union __mips_syscall_return _sc_ret; \ - _sc_ret.val = __mips_syscall7 ((long) (arg1), \ - (long) (arg2), \ - (long) (arg3), \ - (long) (arg4), \ - (long) (arg5), \ - (long) (arg6), \ - (long) (arg7), \ - (long) (number)); \ + _sc_ret.val = __mips_syscall7 ((long int) (arg1), \ + (long int) (arg2), \ + (long int) (arg3), \ + (long int) (arg4), \ + (long int) (arg5), \ + (long int) (arg6), \ + (long int) (arg7), \ + (long int) (number)); \ err = _sc_ret.reg.v1; \ _sc_ret.reg.v0; \ }) diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h b/sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h index f96636538..4a9d7054f 100644 --- a/sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h +++ b/sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h @@ -47,14 +47,14 @@ /* Convert X to a long long, without losing any bits if it is one already or warning if it is a 32-bit pointer. */ -#define ARGIFY(X) ((long long) (__typeof__ ((X) - (X))) (X)) +#define ARGIFY(X) ((long long int) (__typeof__ ((X) - (X))) (X)) /* Define a macro which expands into the inline wrapper code for a system call. */ #undef INLINE_SYSCALL #define INLINE_SYSCALL(name, nr, args...) \ ({ INTERNAL_SYSCALL_DECL (_sc_err); \ - long result_var = INTERNAL_SYSCALL (name, _sc_err, nr, args); \ + long int result_var = INTERNAL_SYSCALL (name, _sc_err, nr, args); \ if ( INTERNAL_SYSCALL_ERROR_P (result_var, _sc_err) ) \ { \ __set_errno (INTERNAL_SYSCALL_ERRNO (result_var, _sc_err)); \ @@ -63,10 +63,10 @@ result_var; }) #undef INTERNAL_SYSCALL_DECL -#define INTERNAL_SYSCALL_DECL(err) long err __attribute__ ((unused)) +#define INTERNAL_SYSCALL_DECL(err) long int err __attribute__ ((unused)) #undef INTERNAL_SYSCALL_ERROR_P -#define INTERNAL_SYSCALL_ERROR_P(val, err) ((void) (val), (long) (err)) +#define INTERNAL_SYSCALL_ERROR_P(val, err) ((void) (val), (long int) (err)) #undef INTERNAL_SYSCALL_ERRNO #define INTERNAL_SYSCALL_ERRNO(val, err) ((void) (err), val) @@ -112,13 +112,13 @@ #define internal_syscall0(v0_init, input, number, err, dummy...) \ ({ \ - long _sys_result; \ + long int _sys_result; \ \ { \ - register long long __s0 asm ("$16") __attribute__ ((unused)) \ + register long long int __s0 asm ("$16") __attribute__ ((unused))\ = (number); \ - register long long __v0 asm ("$2"); \ - register long long __a3 asm ("$7"); \ + register long long int __v0 asm ("$2"); \ + register long long int __a3 asm ("$7"); \ __asm__ volatile ( \ ".set\tnoreorder\n\t" \ v0_init \ @@ -135,14 +135,15 @@ #define internal_syscall1(v0_init, input, number, err, arg1) \ ({ \ - long _sys_result; \ + long int _sys_result; \ \ { \ - register long long __s0 asm ("$16") __attribute__ ((unused)) \ + long long int _arg1 = ARGIFY (arg1); \ + register long long int __s0 asm ("$16") __attribute__ ((unused))\ = (number); \ - register long long __v0 asm ("$2"); \ - register long long __a0 asm ("$4") = ARGIFY (arg1); \ - register long long __a3 asm ("$7"); \ + register long long int __v0 asm ("$2"); \ + register long long int __a0 asm ("$4") = _arg1; \ + register long long int __a3 asm ("$7"); \ __asm__ volatile ( \ ".set\tnoreorder\n\t" \ v0_init \ @@ -159,15 +160,17 @@ #define internal_syscall2(v0_init, input, number, err, arg1, arg2) \ ({ \ - long _sys_result; \ + long int _sys_result; \ \ { \ - register long long __s0 asm ("$16") __attribute__ ((unused)) \ + long long int _arg1 = ARGIFY (arg1); \ + long long int _arg2 = ARGIFY (arg2); \ + register long long int __s0 asm ("$16") __attribute__ ((unused))\ = (number); \ - register long long __v0 asm ("$2"); \ - register long long __a0 asm ("$4") = ARGIFY (arg1); \ - register long long __a1 asm ("$5") = ARGIFY (arg2); \ - register long long __a3 asm ("$7"); \ + register long long int __v0 asm ("$2"); \ + register long long int __a0 asm ("$4") = _arg1; \ + register long long int __a1 asm ("$5") = _arg2; \ + register long long int __a3 asm ("$7"); \ __asm__ volatile ( \ ".set\tnoreorder\n\t" \ v0_init \ @@ -185,16 +188,19 @@ #define internal_syscall3(v0_init, input, number, err, \ arg1, arg2, arg3) \ ({ \ - long _sys_result; \ + long int _sys_result; \ \ { \ - register long long __s0 asm ("$16") __attribute__ ((unused)) \ + long long int _arg1 = ARGIFY (arg1); \ + long long int _arg2 = ARGIFY (arg2); \ + long long int _arg3 = ARGIFY (arg3); \ + register long long int __s0 asm ("$16") __attribute__ ((unused))\ = (number); \ - register long long __v0 asm ("$2"); \ - register long long __a0 asm ("$4") = ARGIFY (arg1); \ - register long long __a1 asm ("$5") = ARGIFY (arg2); \ - register long long __a2 asm ("$6") = ARGIFY (arg3); \ - register long long __a3 asm ("$7"); \ + register long long int __v0 asm ("$2"); \ + register long long int __a0 asm ("$4") = _arg1; \ + register long long int __a1 asm ("$5") = _arg2; \ + register long long int __a2 asm ("$6") = _arg3; \ + register long long int __a3 asm ("$7"); \ __asm__ volatile ( \ ".set\tnoreorder\n\t" \ v0_init \ @@ -212,16 +218,20 @@ #define internal_syscall4(v0_init, input, number, err, \ arg1, arg2, arg3, arg4) \ ({ \ - long _sys_result; \ + long int _sys_result; \ \ { \ - register long long __s0 asm ("$16") __attribute__ ((unused)) \ + long long int _arg1 = ARGIFY (arg1); \ + long long int _arg2 = ARGIFY (arg2); \ + long long int _arg3 = ARGIFY (arg3); \ + long long int _arg4 = ARGIFY (arg4); \ + register long long int __s0 asm ("$16") __attribute__ ((unused))\ = (number); \ - register long long __v0 asm ("$2"); \ - register long long __a0 asm ("$4") = ARGIFY (arg1); \ - register long long __a1 asm ("$5") = ARGIFY (arg2); \ - register long long __a2 asm ("$6") = ARGIFY (arg3); \ - register long long __a3 asm ("$7") = ARGIFY (arg4); \ + register long long int __v0 asm ("$2"); \ + register long long int __a0 asm ("$4") = _arg1; \ + register long long int __a1 asm ("$5") = _arg2; \ + register long long int __a2 asm ("$6") = _arg3; \ + register long long int __a3 asm ("$7") = _arg4; \ __asm__ volatile ( \ ".set\tnoreorder\n\t" \ v0_init \ @@ -239,17 +249,22 @@ #define internal_syscall5(v0_init, input, number, err, \ arg1, arg2, arg3, arg4, arg5) \ ({ \ - long _sys_result; \ + long int _sys_result; \ \ { \ - register long long __s0 asm ("$16") __attribute__ ((unused)) \ + long long int _arg1 = ARGIFY (arg1); \ + long long int _arg2 = ARGIFY (arg2); \ + long long int _arg3 = ARGIFY (arg3); \ + long long int _arg4 = ARGIFY (arg4); \ + long long int _arg5 = ARGIFY (arg5); \ + register long long int __s0 asm ("$16") __attribute__ ((unused))\ = (number); \ - register long long __v0 asm ("$2"); \ - register long long __a0 asm ("$4") = ARGIFY (arg1); \ - register long long __a1 asm ("$5") = ARGIFY (arg2); \ - register long long __a2 asm ("$6") = ARGIFY (arg3); \ - register long long __a3 asm ("$7") = ARGIFY (arg4); \ - register long long __a4 asm ("$8") = ARGIFY (arg5); \ + register long long int __v0 asm ("$2"); \ + register long long int __a0 asm ("$4") = _arg1; \ + register long long int __a1 asm ("$5") = _arg2; \ + register long long int __a2 asm ("$6") = _arg3; \ + register long long int __a3 asm ("$7") = _arg4; \ + register long long int __a4 asm ("$8") = _arg5; \ __asm__ volatile ( \ ".set\tnoreorder\n\t" \ v0_init \ @@ -267,18 +282,24 @@ #define internal_syscall6(v0_init, input, number, err, \ arg1, arg2, arg3, arg4, arg5, arg6) \ ({ \ - long _sys_result; \ + long int _sys_result; \ \ { \ - register long long __s0 asm ("$16") __attribute__ ((unused)) \ + long long int _arg1 = ARGIFY (arg1); \ + long long int _arg2 = ARGIFY (arg2); \ + long long int _arg3 = ARGIFY (arg3); \ + long long int _arg4 = ARGIFY (arg4); \ + long long int _arg5 = ARGIFY (arg5); \ + long long int _arg6 = ARGIFY (arg6); \ + register long long int __s0 asm ("$16") __attribute__ ((unused))\ = (number); \ - register long long __v0 asm ("$2"); \ - register long long __a0 asm ("$4") = ARGIFY (arg1); \ - register long long __a1 asm ("$5") = ARGIFY (arg2); \ - register long long __a2 asm ("$6") = ARGIFY (arg3); \ - register long long __a3 asm ("$7") = ARGIFY (arg4); \ - register long long __a4 asm ("$8") = ARGIFY (arg5); \ - register long long __a5 asm ("$9") = ARGIFY (arg6); \ + register long long int __v0 asm ("$2"); \ + register long long int __a0 asm ("$4") = _arg1; \ + register long long int __a1 asm ("$5") = _arg2; \ + register long long int __a2 asm ("$6") = _arg3; \ + register long long int __a3 asm ("$7") = _arg4; \ + register long long int __a4 asm ("$8") = _arg5; \ + register long long int __a5 asm ("$9") = _arg6; \ __asm__ volatile ( \ ".set\tnoreorder\n\t" \ v0_init \ diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n64/sysdep.h b/sysdeps/unix/sysv/linux/mips/mips64/n64/sysdep.h index 9d30291f8..3e1f1cc3c 100644 --- a/sysdeps/unix/sysv/linux/mips/mips64/n64/sysdep.h +++ b/sysdeps/unix/sysv/linux/mips/mips64/n64/sysdep.h @@ -50,7 +50,7 @@ #undef INLINE_SYSCALL #define INLINE_SYSCALL(name, nr, args...) \ ({ INTERNAL_SYSCALL_DECL (_sc_err); \ - long result_var = INTERNAL_SYSCALL (name, _sc_err, nr, args); \ + long int result_var = INTERNAL_SYSCALL (name, _sc_err, nr, args); \ if ( INTERNAL_SYSCALL_ERROR_P (result_var, _sc_err) ) \ { \ __set_errno (INTERNAL_SYSCALL_ERRNO (result_var, _sc_err)); \ @@ -59,10 +59,10 @@ result_var; }) #undef INTERNAL_SYSCALL_DECL -#define INTERNAL_SYSCALL_DECL(err) long err __attribute__ ((unused)) +#define INTERNAL_SYSCALL_DECL(err) long int err __attribute__ ((unused)) #undef INTERNAL_SYSCALL_ERROR_P -#define INTERNAL_SYSCALL_ERROR_P(val, err) ((void) (val), (long) (err)) +#define INTERNAL_SYSCALL_ERROR_P(val, err) ((void) (val), (long int) (err)) #undef INTERNAL_SYSCALL_ERRNO #define INTERNAL_SYSCALL_ERRNO(val, err) ((void) (err), val) @@ -108,13 +108,13 @@ #define internal_syscall0(v0_init, input, number, err, dummy...) \ ({ \ - long _sys_result; \ + long int _sys_result; \ \ { \ - register long __s0 asm ("$16") __attribute__ ((unused)) \ + register long int __s0 asm ("$16") __attribute__ ((unused)) \ = (number); \ - register long __v0 asm ("$2"); \ - register long __a3 asm ("$7"); \ + register long int __v0 asm ("$2"); \ + register long int __a3 asm ("$7"); \ __asm__ volatile ( \ ".set\tnoreorder\n\t" \ v0_init \ @@ -131,14 +131,15 @@ #define internal_syscall1(v0_init, input, number, err, arg1) \ ({ \ - long _sys_result; \ + long int _sys_result; \ \ { \ - register long __s0 asm ("$16") __attribute__ ((unused)) \ + long int _arg1 = (long int) (arg1); \ + register long int __s0 asm ("$16") __attribute__ ((unused)) \ = (number); \ - register long __v0 asm ("$2"); \ - register long __a0 asm ("$4") = (long) (arg1); \ - register long __a3 asm ("$7"); \ + register long int __v0 asm ("$2"); \ + register long int __a0 asm ("$4") = _arg1; \ + register long int __a3 asm ("$7"); \ __asm__ volatile ( \ ".set\tnoreorder\n\t" \ v0_init \ @@ -155,15 +156,17 @@ #define internal_syscall2(v0_init, input, number, err, arg1, arg2) \ ({ \ - long _sys_result; \ + long int _sys_result; \ \ { \ - register long __s0 asm ("$16") __attribute__ ((unused)) \ + long int _arg1 = (long int) (arg1); \ + long int _arg2 = (long int) (arg2); \ + register long int __s0 asm ("$16") __attribute__ ((unused)) \ = (number); \ - register long __v0 asm ("$2"); \ - register long __a0 asm ("$4") = (long) (arg1); \ - register long __a1 asm ("$5") = (long) (arg2); \ - register long __a3 asm ("$7"); \ + register long int __v0 asm ("$2"); \ + register long int __a0 asm ("$4") = _arg1; \ + register long int __a1 asm ("$5") = _arg2; \ + register long int __a3 asm ("$7"); \ __asm__ volatile ( \ ".set\tnoreorder\n\t" \ v0_init \ @@ -181,16 +184,19 @@ #define internal_syscall3(v0_init, input, number, err, \ arg1, arg2, arg3) \ ({ \ - long _sys_result; \ + long int _sys_result; \ \ { \ - register long __s0 asm ("$16") __attribute__ ((unused)) \ + long int _arg1 = (long int) (arg1); \ + long int _arg2 = (long int) (arg2); \ + long int _arg3 = (long int) (arg3); \ + register long int __s0 asm ("$16") __attribute__ ((unused)) \ = (number); \ - register long __v0 asm ("$2"); \ - register long __a0 asm ("$4") = (long) (arg1); \ - register long __a1 asm ("$5") = (long) (arg2); \ - register long __a2 asm ("$6") = (long) (arg3); \ - register long __a3 asm ("$7"); \ + register long int __v0 asm ("$2"); \ + register long int __a0 asm ("$4") = _arg1; \ + register long int __a1 asm ("$5") = _arg2; \ + register long int __a2 asm ("$6") = _arg3; \ + register long int __a3 asm ("$7"); \ __asm__ volatile ( \ ".set\tnoreorder\n\t" \ v0_init \ @@ -208,16 +214,20 @@ #define internal_syscall4(v0_init, input, number, err, \ arg1, arg2, arg3, arg4) \ ({ \ - long _sys_result; \ + long int _sys_result; \ \ { \ - register long __s0 asm ("$16") __attribute__ ((unused)) \ + long int _arg1 = (long int) (arg1); \ + long int _arg2 = (long int) (arg2); \ + long int _arg3 = (long int) (arg3); \ + long int _arg4 = (long int) (arg4); \ + register long int __s0 asm ("$16") __attribute__ ((unused)) \ = (number); \ - register long __v0 asm ("$2"); \ - register long __a0 asm ("$4") = (long) (arg1); \ - register long __a1 asm ("$5") = (long) (arg2); \ - register long __a2 asm ("$6") = (long) (arg3); \ - register long __a3 asm ("$7") = (long) (arg4); \ + register long int __v0 asm ("$2"); \ + register long int __a0 asm ("$4") = _arg1; \ + register long int __a1 asm ("$5") = _arg2; \ + register long int __a2 asm ("$6") = _arg3; \ + register long int __a3 asm ("$7") = _arg4; \ __asm__ volatile ( \ ".set\tnoreorder\n\t" \ v0_init \ @@ -235,17 +245,22 @@ #define internal_syscall5(v0_init, input, number, err, \ arg1, arg2, arg3, arg4, arg5) \ ({ \ - long _sys_result; \ + long int _sys_result; \ \ { \ - register long __s0 asm ("$16") __attribute__ ((unused)) \ + long int _arg1 = (long int) (arg1); \ + long int _arg2 = (long int) (arg2); \ + long int _arg3 = (long int) (arg3); \ + long int _arg4 = (long int) (arg4); \ + long int _arg5 = (long int) (arg5); \ + register long int __s0 asm ("$16") __attribute__ ((unused)) \ = (number); \ - register long __v0 asm ("$2"); \ - register long __a0 asm ("$4") = (long) (arg1); \ - register long __a1 asm ("$5") = (long) (arg2); \ - register long __a2 asm ("$6") = (long) (arg3); \ - register long __a3 asm ("$7") = (long) (arg4); \ - register long __a4 asm ("$8") = (long) (arg5); \ + register long int __v0 asm ("$2"); \ + register long int __a0 asm ("$4") = _arg1; \ + register long int __a1 asm ("$5") = _arg2; \ + register long int __a2 asm ("$6") = _arg3; \ + register long int __a3 asm ("$7") = _arg4; \ + register long int __a4 asm ("$8") = _arg5; \ __asm__ volatile ( \ ".set\tnoreorder\n\t" \ v0_init \ @@ -263,18 +278,24 @@ #define internal_syscall6(v0_init, input, number, err, \ arg1, arg2, arg3, arg4, arg5, arg6) \ ({ \ - long _sys_result; \ + long int _sys_result; \ \ { \ - register long __s0 asm ("$16") __attribute__ ((unused)) \ + long int _arg1 = (long int) (arg1); \ + long int _arg2 = (long int) (arg2); \ + long int _arg3 = (long int) (arg3); \ + long int _arg4 = (long int) (arg4); \ + long int _arg5 = (long int) (arg5); \ + long int _arg6 = (long int) (arg6); \ + register long int __s0 asm ("$16") __attribute__ ((unused)) \ = (number); \ - register long __v0 asm ("$2"); \ - register long __a0 asm ("$4") = (long) (arg1); \ - register long __a1 asm ("$5") = (long) (arg2); \ - register long __a2 asm ("$6") = (long) (arg3); \ - register long __a3 asm ("$7") = (long) (arg4); \ - register long __a4 asm ("$8") = (long) (arg5); \ - register long __a5 asm ("$9") = (long) (arg6); \ + register long int __v0 asm ("$2"); \ + register long int __a0 asm ("$4") = _arg1; \ + register long int __a1 asm ("$5") = _arg2; \ + register long int __a2 asm ("$6") = _arg3; \ + register long int __a3 asm ("$7") = _arg4; \ + register long int __a4 asm ("$8") = _arg5; \ + register long int __a5 asm ("$9") = _arg6; \ __asm__ volatile ( \ ".set\tnoreorder\n\t" \ v0_init \ diff --git a/sysdeps/unix/sysv/linux/mips/mips64/syscall.S b/sysdeps/unix/sysv/linux/mips/mips64/syscall.S index 26adf2cd0..a9baff3c1 100644 --- a/sysdeps/unix/sysv/linux/mips/mips64/syscall.S +++ b/sysdeps/unix/sysv/linux/mips/mips64/syscall.S @@ -20,7 +20,7 @@ #include /* Usage: - long syscall (syscall_number, arg1, arg2, arg3, arg4, arg5, arg6, arg7) + long int syscall (syscall_number, arg1, arg2, arg3, arg4, arg5, arg6, arg7) We need to do some arg shifting, syscall_number will be in v0. */ diff --git a/sysdeps/unix/sysv/linux/mips/sysdep.h b/sysdeps/unix/sysv/linux/mips/sysdep.h index cdfc0b1b5..a4cf1540f 100644 --- a/sysdeps/unix/sysv/linux/mips/sysdep.h +++ b/sysdeps/unix/sysv/linux/mips/sysdep.h @@ -36,8 +36,8 @@ the INTERNAL_SYSCALL_{ERROR_P,ERRNO} macros work correctly. */ #define INTERNAL_VSYSCALL_CALL(funcptr, err, nr, args...) \ ({ \ - long _ret = funcptr (args); \ - err = ((unsigned long) (_ret) >= (unsigned long) -4095L); \ + long int _ret = funcptr (args); \ + err = ((unsigned long int) (_ret) >= (unsigned long int) -4095L); \ if (err) \ _ret = -_ret; \ _ret; \ diff --git a/sysdeps/unix/sysv/linux/mips/unwind-arch.h b/sysdeps/unix/sysv/linux/mips/unwind-arch.h new file mode 100644 index 000000000..a00989998 --- /dev/null +++ b/sysdeps/unix/sysv/linux/mips/unwind-arch.h @@ -0,0 +1,67 @@ +/* Return backtrace of current program state. Arch-specific bits. + Copyright (C) 2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#ifndef _UNWIND_ARCH_H +#define _UNWIND_ARCH_H + +#include + +/* MIPS fallback code handle a frame where its FDE can not be obtained + (for instance a signal frame) by reading the kernel allocated signal frame + and adding '2' to the value of 'sc_pc' [1]. The added value is used to + recognize an end of an EH region on mips16 [2]. + + The idea here is to adjust the obtained signal frame ADDR value and remove + the libgcc added value by checking if the previous frame is a signal frame + one. + + [1] libgcc/config/mips/linux-unwind.h from gcc code. + [2] gcc/config/mips/mips.h from gcc code. */ + +static inline void * +unwind_arch_adjustment (void *prev, void *addr) +{ + uint32_t *pc = (uint32_t *) prev; + + if (pc == NULL) + return addr; + + /* For MIPS16 or microMIPS frame libgcc makes no adjustment. */ + if ((uintptr_t) pc & 0x3) + return addr; + + /* The vDSO containes either + + 24021061 li v0, 0x1061 (rt_sigreturn) + 0000000c syscall + or + 24021017 li v0, 0x1017 (sigreturn) + 0000000c syscall */ + if (pc[1] != 0x0000000c) + return addr; +#if _MIPS_SIM == _ABIO32 + if (pc[0] == (0x24020000 | __NR_sigreturn)) + return (void *) ((uintptr_t) addr - 2); +#endif + if (pc[0] == (0x24020000 | __NR_rt_sigreturn)) + return (void *) ((uintptr_t) addr - 2); + + return addr; +} + +#endif diff --git a/sysdeps/unix/sysv/linux/msgctl.c b/sysdeps/unix/sysv/linux/msgctl.c index 27879e76c..fd46aec1a 100644 --- a/sysdeps/unix/sysv/linux/msgctl.c +++ b/sysdeps/unix/sysv/linux/msgctl.c @@ -21,6 +21,7 @@ #include #include #include +#include /* For __kernel_mode_t. */ #ifndef DEFAULT_VERSION # ifndef __ASSUME_SYSVIPC_BROKEN_MODE_T @@ -61,7 +62,6 @@ __new_msgctl (int msqid, int cmd, struct msqid_ds *buf) int ret = msgctl_syscall (msqid, cmd, buf); -#ifdef __ASSUME_SYSVIPC_BROKEN_MODE_T if (ret >= 0) { switch (cmd) @@ -69,10 +69,16 @@ __new_msgctl (int msqid, int cmd, struct msqid_ds *buf) case IPC_STAT: case MSG_STAT: case MSG_STAT_ANY: +#ifdef __ASSUME_SYSVIPC_BROKEN_MODE_T buf->msg_perm.mode >>= 16; +#else + /* Old Linux kernel versions might not clear the mode padding. */ + if (sizeof ((struct msqid_ds){0}.msg_perm.mode) + != sizeof (__kernel_mode_t)) + buf->msg_perm.mode &= 0xFFFF; +#endif } } -#endif return ret; } diff --git a/sysdeps/unix/sysv/linux/nios2/kernel-features.h b/sysdeps/unix/sysv/linux/nios2/kernel-features.h deleted file mode 100644 index d68d11498..000000000 --- a/sysdeps/unix/sysv/linux/nios2/kernel-features.h +++ /dev/null @@ -1,22 +0,0 @@ -/* Set flags signalling availability of kernel features based on given - kernel version number. NIOS2 version. - Copyright (C) 2019-2020 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - . */ - -#include_next - -#undef __ASSUME_SYSVIPC_DEFAULT_IPC_64 diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h b/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h index 725dfafde..ffc150851 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h @@ -134,47 +134,47 @@ # define LOADARGS_0(name, dummy) \ r0 = name # define LOADARGS_1(name, __arg1) \ - long int arg1 = (long int) (__arg1); \ + long int _arg1 = (long int) (__arg1); \ LOADARGS_0(name, 0); \ extern void __illegally_sized_syscall_arg1 (void); \ if (__builtin_classify_type (__arg1) != 5 && sizeof (__arg1) > 4) \ __illegally_sized_syscall_arg1 (); \ - r3 = arg1 + r3 = _arg1 # define LOADARGS_2(name, __arg1, __arg2) \ - long int arg2 = (long int) (__arg2); \ + long int _arg2 = (long int) (__arg2); \ LOADARGS_1(name, __arg1); \ extern void __illegally_sized_syscall_arg2 (void); \ if (__builtin_classify_type (__arg2) != 5 && sizeof (__arg2) > 4) \ __illegally_sized_syscall_arg2 (); \ - r4 = arg2 + r4 = _arg2 # define LOADARGS_3(name, __arg1, __arg2, __arg3) \ - long int arg3 = (long int) (__arg3); \ + long int _arg3 = (long int) (__arg3); \ LOADARGS_2(name, __arg1, __arg2); \ extern void __illegally_sized_syscall_arg3 (void); \ if (__builtin_classify_type (__arg3) != 5 && sizeof (__arg3) > 4) \ __illegally_sized_syscall_arg3 (); \ - r5 = arg3 + r5 = _arg3 # define LOADARGS_4(name, __arg1, __arg2, __arg3, __arg4) \ - long int arg4 = (long int) (__arg4); \ + long int _arg4 = (long int) (__arg4); \ LOADARGS_3(name, __arg1, __arg2, __arg3); \ extern void __illegally_sized_syscall_arg4 (void); \ if (__builtin_classify_type (__arg4) != 5 && sizeof (__arg4) > 4) \ __illegally_sized_syscall_arg4 (); \ - r6 = arg4 + r6 = _arg4 # define LOADARGS_5(name, __arg1, __arg2, __arg3, __arg4, __arg5) \ - long int arg5 = (long int) (__arg5); \ + long int _arg5 = (long int) (__arg5); \ LOADARGS_4(name, __arg1, __arg2, __arg3, __arg4); \ extern void __illegally_sized_syscall_arg5 (void); \ if (__builtin_classify_type (__arg5) != 5 && sizeof (__arg5) > 4) \ __illegally_sized_syscall_arg5 (); \ - r7 = arg5 + r7 = _arg5 # define LOADARGS_6(name, __arg1, __arg2, __arg3, __arg4, __arg5, __arg6) \ - long int arg6 = (long int) (__arg6); \ + long int _arg6 = (long int) (__arg6); \ LOADARGS_5(name, __arg1, __arg2, __arg3, __arg4, __arg5); \ extern void __illegally_sized_syscall_arg6 (void); \ if (__builtin_classify_type (__arg6) != 5 && sizeof (__arg6) > 4) \ __illegally_sized_syscall_arg6 (); \ - r8 = arg6 + r8 = _arg6 # define ASM_INPUT_0 "0" (r0) # define ASM_INPUT_1 ASM_INPUT_0, "1" (r3) diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h b/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h index ee7f43653..8a3f1c43e 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h @@ -139,47 +139,47 @@ #define LOADARGS_0(name, dummy) \ r0 = name #define LOADARGS_1(name, __arg1) \ - long int arg1 = (long int) (__arg1); \ + long int _arg1 = (long int) (__arg1); \ LOADARGS_0(name, 0); \ extern void __illegally_sized_syscall_arg1 (void); \ if (__builtin_classify_type (__arg1) != 5 && sizeof (__arg1) > 8) \ __illegally_sized_syscall_arg1 (); \ - r3 = arg1 + r3 = _arg1 #define LOADARGS_2(name, __arg1, __arg2) \ - long int arg2 = (long int) (__arg2); \ + long int _arg2 = (long int) (__arg2); \ LOADARGS_1(name, __arg1); \ extern void __illegally_sized_syscall_arg2 (void); \ if (__builtin_classify_type (__arg2) != 5 && sizeof (__arg2) > 8) \ __illegally_sized_syscall_arg2 (); \ - r4 = arg2 + r4 = _arg2 #define LOADARGS_3(name, __arg1, __arg2, __arg3) \ - long int arg3 = (long int) (__arg3); \ + long int _arg3 = (long int) (__arg3); \ LOADARGS_2(name, __arg1, __arg2); \ extern void __illegally_sized_syscall_arg3 (void); \ if (__builtin_classify_type (__arg3) != 5 && sizeof (__arg3) > 8) \ __illegally_sized_syscall_arg3 (); \ - r5 = arg3 + r5 = _arg3 #define LOADARGS_4(name, __arg1, __arg2, __arg3, __arg4) \ - long int arg4 = (long int) (__arg4); \ + long int _arg4 = (long int) (__arg4); \ LOADARGS_3(name, __arg1, __arg2, __arg3); \ extern void __illegally_sized_syscall_arg4 (void); \ if (__builtin_classify_type (__arg4) != 5 && sizeof (__arg4) > 8) \ __illegally_sized_syscall_arg4 (); \ - r6 = arg4 + r6 = _arg4 #define LOADARGS_5(name, __arg1, __arg2, __arg3, __arg4, __arg5) \ - long int arg5 = (long int) (__arg5); \ + long int _arg5 = (long int) (__arg5); \ LOADARGS_4(name, __arg1, __arg2, __arg3, __arg4); \ extern void __illegally_sized_syscall_arg5 (void); \ if (__builtin_classify_type (__arg5) != 5 && sizeof (__arg5) > 8) \ __illegally_sized_syscall_arg5 (); \ - r7 = arg5 + r7 = _arg5 #define LOADARGS_6(name, __arg1, __arg2, __arg3, __arg4, __arg5, __arg6) \ - long int arg6 = (long int) (__arg6); \ + long int _arg6 = (long int) (__arg6); \ LOADARGS_5(name, __arg1, __arg2, __arg3, __arg4, __arg5); \ extern void __illegally_sized_syscall_arg6 (void); \ if (__builtin_classify_type (__arg6) != 5 && sizeof (__arg6) > 8) \ __illegally_sized_syscall_arg6 (); \ - r8 = arg6 + r8 = _arg6 #define ASM_INPUT_0 "0" (r0) #define ASM_INPUT_1 ASM_INPUT_0, "1" (r3) diff --git a/sysdeps/unix/sysv/linux/prctl.c b/sysdeps/unix/sysv/linux/prctl.c new file mode 100644 index 000000000..d5725f14c --- /dev/null +++ b/sysdeps/unix/sysv/linux/prctl.c @@ -0,0 +1,42 @@ +/* prctl - Linux specific syscall. + Copyright (C) 2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#include +#include +#include + +/* Unconditionally read all potential arguments. This may pass + garbage values to the kernel, but avoids the need for teaching + glibc the argument counts of individual options (including ones + that are added to the kernel in the future). */ + +int +__prctl (int option, ...) +{ + va_list arg; + va_start (arg, option); + unsigned long int arg2 = va_arg (arg, unsigned long int); + unsigned long int arg3 = va_arg (arg, unsigned long int); + unsigned long int arg4 = va_arg (arg, unsigned long int); + unsigned long int arg5 = va_arg (arg, unsigned long int); + va_end (arg); + return INLINE_SYSCALL_CALL (prctl, option, arg2, arg3, arg4, arg5); +} + +libc_hidden_def (__prctl) +weak_alias (__prctl, prctl) diff --git a/sysdeps/unix/sysv/linux/process_vm_readv.c b/sysdeps/unix/sysv/linux/process_vm_readv.c new file mode 100644 index 000000000..e1377f7e5 --- /dev/null +++ b/sysdeps/unix/sysv/linux/process_vm_readv.c @@ -0,0 +1,32 @@ +/* process_vm_readv - Linux specific syscall. + Copyright (C) 2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#include +#include +#include +#include + +ssize_t +process_vm_readv (pid_t pid, const struct iovec *local_iov, + unsigned long int liovcnt, + const struct iovec *remote_iov, + unsigned long int riovcnt, unsigned long int flags) +{ + return INLINE_SYSCALL_CALL (process_vm_readv, pid, local_iov, + liovcnt, remote_iov, riovcnt, flags); +} diff --git a/sysdeps/unix/sysv/linux/process_vm_writev.c b/sysdeps/unix/sysv/linux/process_vm_writev.c new file mode 100644 index 000000000..944ab9b7f --- /dev/null +++ b/sysdeps/unix/sysv/linux/process_vm_writev.c @@ -0,0 +1,32 @@ +/* process_vm_writev - Linux specific syscall. + Copyright (C) 2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#include +#include +#include +#include + +ssize_t +process_vm_writev (pid_t pid, const struct iovec *local_iov, + unsigned long int liovcnt, + const struct iovec *remote_iov, + unsigned long int riovcnt, unsigned long int flags) +{ + return INLINE_SYSCALL_CALL (process_vm_writev, pid, local_iov, + liovcnt, remote_iov, riovcnt, flags); +} diff --git a/sysdeps/unix/sysv/linux/riscv/sysdep.h b/sysdeps/unix/sysv/linux/riscv/sysdep.h index 201bf9a91..2bd9b16f3 100644 --- a/sysdeps/unix/sysv/linux/riscv/sysdep.h +++ b/sysdeps/unix/sysv/linux/riscv/sysdep.h @@ -176,10 +176,11 @@ # define internal_syscall1(number, err, arg0) \ ({ \ long int _sys_result; \ + long int _arg0 = (long int) (arg0); \ \ { \ register long int __a7 asm ("a7") = number; \ - register long int __a0 asm ("a0") = (long int) (arg0); \ + register long int __a0 asm ("a0") = _arg0; \ __asm__ volatile ( \ "scall\n\t" \ : "+r" (__a0) \ @@ -193,11 +194,13 @@ # define internal_syscall2(number, err, arg0, arg1) \ ({ \ long int _sys_result; \ + long int _arg0 = (long int) (arg0); \ + long int _arg1 = (long int) (arg1); \ \ { \ register long int __a7 asm ("a7") = number; \ - register long int __a0 asm ("a0") = (long int) (arg0); \ - register long int __a1 asm ("a1") = (long int) (arg1); \ + register long int __a0 asm ("a0") = _arg0; \ + register long int __a1 asm ("a1") = _arg1; \ __asm__ volatile ( \ "scall\n\t" \ : "+r" (__a0) \ @@ -211,12 +214,15 @@ # define internal_syscall3(number, err, arg0, arg1, arg2) \ ({ \ long int _sys_result; \ + long int _arg0 = (long int) (arg0); \ + long int _arg1 = (long int) (arg1); \ + long int _arg2 = (long int) (arg2); \ \ { \ register long int __a7 asm ("a7") = number; \ - register long int __a0 asm ("a0") = (long int) (arg0); \ - register long int __a1 asm ("a1") = (long int) (arg1); \ - register long int __a2 asm ("a2") = (long int) (arg2); \ + register long int __a0 asm ("a0") = _arg0; \ + register long int __a1 asm ("a1") = _arg1; \ + register long int __a2 asm ("a2") = _arg2; \ __asm__ volatile ( \ "scall\n\t" \ : "+r" (__a0) \ @@ -230,13 +236,17 @@ # define internal_syscall4(number, err, arg0, arg1, arg2, arg3) \ ({ \ long int _sys_result; \ + long int _arg0 = (long int) (arg0); \ + long int _arg1 = (long int) (arg1); \ + long int _arg2 = (long int) (arg2); \ + long int _arg3 = (long int) (arg3); \ \ { \ register long int __a7 asm ("a7") = number; \ - register long int __a0 asm ("a0") = (long int) (arg0); \ - register long int __a1 asm ("a1") = (long int) (arg1); \ - register long int __a2 asm ("a2") = (long int) (arg2); \ - register long int __a3 asm ("a3") = (long int) (arg3); \ + register long int __a0 asm ("a0") = _arg0; \ + register long int __a1 asm ("a1") = _arg1; \ + register long int __a2 asm ("a2") = _arg2; \ + register long int __a3 asm ("a3") = _arg3; \ __asm__ volatile ( \ "scall\n\t" \ : "+r" (__a0) \ @@ -250,14 +260,19 @@ # define internal_syscall5(number, err, arg0, arg1, arg2, arg3, arg4) \ ({ \ long int _sys_result; \ + long int _arg0 = (long int) (arg0); \ + long int _arg1 = (long int) (arg1); \ + long int _arg2 = (long int) (arg2); \ + long int _arg3 = (long int) (arg3); \ + long int _arg4 = (long int) (arg4); \ \ { \ register long int __a7 asm ("a7") = number; \ - register long int __a0 asm ("a0") = (long int) (arg0); \ - register long int __a1 asm ("a1") = (long int) (arg1); \ - register long int __a2 asm ("a2") = (long int) (arg2); \ - register long int __a3 asm ("a3") = (long int) (arg3); \ - register long int __a4 asm ("a4") = (long int) (arg4); \ + register long int __a0 asm ("a0") = _arg0; \ + register long int __a1 asm ("a1") = _arg1; \ + register long int __a2 asm ("a2") = _arg2; \ + register long int __a3 asm ("a3") = _arg3; \ + register long int __a4 asm ("a4") = _arg4; \ __asm__ volatile ( \ "scall\n\t" \ : "+r" (__a0) \ @@ -271,15 +286,21 @@ # define internal_syscall6(number, err, arg0, arg1, arg2, arg3, arg4, arg5) \ ({ \ long int _sys_result; \ + long int _arg0 = (long int) (arg0); \ + long int _arg1 = (long int) (arg1); \ + long int _arg2 = (long int) (arg2); \ + long int _arg3 = (long int) (arg3); \ + long int _arg4 = (long int) (arg4); \ + long int _arg5 = (long int) (arg5); \ \ { \ register long int __a7 asm ("a7") = number; \ - register long int __a0 asm ("a0") = (long int) (arg0); \ - register long int __a1 asm ("a1") = (long int) (arg1); \ - register long int __a2 asm ("a2") = (long int) (arg2); \ - register long int __a3 asm ("a3") = (long int) (arg3); \ - register long int __a4 asm ("a4") = (long int) (arg4); \ - register long int __a5 asm ("a5") = (long int) (arg5); \ + register long int __a0 asm ("a0") = _arg0; \ + register long int __a1 asm ("a1") = _arg1; \ + register long int __a2 asm ("a2") = _arg2; \ + register long int __a3 asm ("a3") = _arg3; \ + register long int __a4 asm ("a4") = _arg4; \ + register long int __a5 asm ("a5") = _arg5; \ __asm__ volatile ( \ "scall\n\t" \ : "+r" (__a0) \ @@ -294,16 +315,23 @@ # define internal_syscall7(number, err, arg0, arg1, arg2, arg3, arg4, arg5, arg6) \ ({ \ long int _sys_result; \ + long int _arg0 = (long int) (arg0); \ + long int _arg1 = (long int) (arg1); \ + long int _arg2 = (long int) (arg2); \ + long int _arg3 = (long int) (arg3); \ + long int _arg4 = (long int) (arg4); \ + long int _arg5 = (long int) (arg5); \ + long int _arg6 = (long int) (arg6); \ \ { \ register long int __a7 asm ("a7") = number; \ - register long int __a0 asm ("a0") = (long int) (arg0); \ - register long int __a1 asm ("a1") = (long int) (arg1); \ - register long int __a2 asm ("a2") = (long int) (arg2); \ - register long int __a3 asm ("a3") = (long int) (arg3); \ - register long int __a4 asm ("a4") = (long int) (arg4); \ - register long int __a5 asm ("a5") = (long int) (arg5); \ - register long int __a6 asm ("a6") = (long int) (arg6); \ + register long int __a0 asm ("a0") = _arg0; \ + register long int __a1 asm ("a1") = _arg1; \ + register long int __a2 asm ("a2") = _arg2; \ + register long int __a3 asm ("a3") = _arg3; \ + register long int __a4 asm ("a4") = _arg4; \ + register long int __a5 asm ("a5") = _arg5; \ + register long int __a6 asm ("a6") = _arg6; \ __asm__ volatile ( \ "scall\n\t" \ : "+r" (__a0) \ diff --git a/sysdeps/unix/sysv/linux/semctl.c b/sysdeps/unix/sysv/linux/semctl.c index 0c3eb0932..30571af49 100644 --- a/sysdeps/unix/sysv/linux/semctl.c +++ b/sysdeps/unix/sysv/linux/semctl.c @@ -22,6 +22,7 @@ #include #include #include +#include /* For __kernel_mode_t. */ /* Define a `union semun' suitable for Linux here. */ union semun @@ -92,7 +93,6 @@ __new_semctl (int semid, int semnum, int cmd, ...) int ret = semctl_syscall (semid, semnum, cmd, arg); -#ifdef __ASSUME_SYSVIPC_BROKEN_MODE_T if (ret >= 0) { switch (cmd) @@ -100,10 +100,16 @@ __new_semctl (int semid, int semnum, int cmd, ...) case IPC_STAT: case SEM_STAT: case SEM_STAT_ANY: +#ifdef __ASSUME_SYSVIPC_BROKEN_MODE_T arg.buf->sem_perm.mode >>= 16; +#else + /* Old Linux kernel versions might not clear the mode padding. */ + if (sizeof ((struct semid_ds){0}.sem_perm.mode) + != sizeof (__kernel_mode_t)) + arg.buf->sem_perm.mode &= 0xFFFF; +#endif } } -#endif return ret; } diff --git a/sysdeps/unix/sysv/linux/shmctl.c b/sysdeps/unix/sysv/linux/shmctl.c index 39fa861e1..f41b359b8 100644 --- a/sysdeps/unix/sysv/linux/shmctl.c +++ b/sysdeps/unix/sysv/linux/shmctl.c @@ -22,6 +22,7 @@ #include #include #include +#include /* For __kernel_mode_t. */ #ifndef DEFAULT_VERSION # ifndef __ASSUME_SYSVIPC_BROKEN_MODE_T @@ -63,7 +64,6 @@ __new_shmctl (int shmid, int cmd, struct shmid_ds *buf) int ret = shmctl_syscall (shmid, cmd, buf); -#ifdef __ASSUME_SYSVIPC_BROKEN_MODE_T if (ret >= 0) { switch (cmd) @@ -71,10 +71,16 @@ __new_shmctl (int shmid, int cmd, struct shmid_ds *buf) case IPC_STAT: case SHM_STAT: case SHM_STAT_ANY: +#ifdef __ASSUME_SYSVIPC_BROKEN_MODE_T buf->shm_perm.mode >>= 16; +#else + /* Old Linux kernel versions might not clear the mode padding. */ + if (sizeof ((struct shmid_ds){0}.shm_perm.mode) + != sizeof (__kernel_mode_t)) + buf->shm_perm.mode &= 0xFFFF; +#endif } } -#endif return ret; } diff --git a/sysdeps/unix/sysv/linux/sparc/Makefile b/sysdeps/unix/sysv/linux/sparc/Makefile index b0d182a43..147503967 100644 --- a/sysdeps/unix/sysv/linux/sparc/Makefile +++ b/sysdeps/unix/sysv/linux/sparc/Makefile @@ -11,8 +11,12 @@ ifeq ($(subdir),sysvipc) sysdep_routines += getshmlba endif +ifeq ($(subdir),signal) +sysdep_routines += sigreturn_stub +endif + ifeq ($(subdir),nptl) # pull in __syscall_error routine -libpthread-routines += sysdep -libpthread-shared-only-routines += sysdep +libpthread-routines += sysdep sigreturn_stub +libpthread-shared-only-routines += sysdep sigreturn_stub endif diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/sigaction.c b/sysdeps/unix/sysv/linux/sparc/sparc32/sigaction.c index 6b2f66422..938aa7aa8 100644 --- a/sysdeps/unix/sysv/linux/sparc/sparc32/sigaction.c +++ b/sysdeps/unix/sysv/linux/sparc/sparc32/sigaction.c @@ -24,8 +24,8 @@ #include #include -static void __rt_sigreturn_stub (void); -static void __sigreturn_stub (void); +void __rt_sigreturn_stub (void); +void __sigreturn_stub (void); #define STUB(act, sigsetsize) \ (act) ? ((unsigned long)((act->sa_flags & SA_SIGINFO) \ @@ -35,25 +35,3 @@ static void __sigreturn_stub (void); (sigsetsize) #include - -static -inhibit_stack_protector -void -__rt_sigreturn_stub (void) -{ - __asm__ ("mov %0, %%g1\n\t" - "ta 0x10\n\t" - : /* no outputs */ - : "i" (__NR_rt_sigreturn)); -} - -static -inhibit_stack_protector -void -__sigreturn_stub (void) -{ - __asm__ ("mov %0, %%g1\n\t" - "ta 0x10\n\t" - : /* no outputs */ - : "i" (__NR_sigreturn)); -} diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/sigreturn_stub.S b/sysdeps/unix/sysv/linux/sparc/sparc32/sigreturn_stub.S new file mode 100644 index 000000000..727cc9473 --- /dev/null +++ b/sysdeps/unix/sysv/linux/sparc/sparc32/sigreturn_stub.S @@ -0,0 +1,34 @@ +/* Sigreturn stub function used on sa_restore field. + Copyright (C) 2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#include + +/* These functions must not change the register window or the stack + pointer [1]. + + [1] https://lkml.org/lkml/2016/5/27/465 */ + +ENTRY (__rt_sigreturn_stub) + mov __NR_rt_sigreturn, %g1 + ta 0x10 +END (__rt_sigreturn_stub) + +ENTRY (__sigreturn_stub) + mov __NR_sigreturn, %g1 + ta 0x10 +END (__sigreturn_stub) diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/sigaction.c b/sysdeps/unix/sysv/linux/sparc/sparc64/sigaction.c index 9c0dc2a63..4e2617232 100644 --- a/sysdeps/unix/sysv/linux/sparc/sparc64/sigaction.c +++ b/sysdeps/unix/sysv/linux/sparc/sparc64/sigaction.c @@ -22,21 +22,11 @@ #include #include -static void __rt_sigreturn_stub (void); +/* Defined on sigreturn_stub.S. */ +void __rt_sigreturn_stub (void); #define STUB(act, sigsetsize) \ (((unsigned long) &__rt_sigreturn_stub) - 8), \ (sigsetsize) #include - -static -inhibit_stack_protector -void -__rt_sigreturn_stub (void) -{ - __asm__ ("mov %0, %%g1\n\t" - "ta 0x6d\n\t" - : /* no outputs */ - : "i" (__NR_rt_sigreturn)); -} diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/sigreturn_stub.S b/sysdeps/unix/sysv/linux/sparc/sparc64/sigreturn_stub.S new file mode 100644 index 000000000..add476683 --- /dev/null +++ b/sysdeps/unix/sysv/linux/sparc/sparc64/sigreturn_stub.S @@ -0,0 +1,29 @@ +/* Sigreturn stub function used on sa_restore field. + Copyright (C) 2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#include + +/* This function must not change the register window or the stack + pointer [1]. + + [1] https://lkml.org/lkml/2016/5/27/465 */ + +ENTRY (__rt_sigreturn_stub) + mov __NR_rt_sigreturn, %g1 + ta 0x6d +END (__rt_sigreturn_stub) diff --git a/sysdeps/unix/sysv/linux/syscall-names.list b/sysdeps/unix/sysv/linux/syscall-names.list index 36e087d8f..3d8981400 100644 --- a/sysdeps/unix/sysv/linux/syscall-names.list +++ b/sysdeps/unix/sysv/linux/syscall-names.list @@ -21,8 +21,8 @@ # This file can list all potential system calls. The names are only # used if the installed kernel headers also provide them. -# The list of system calls is current as of Linux 5.4. -kernel 5.4 +# The list of system calls is current as of Linux 5.5. +kernel 5.5 FAST_atomic_update FAST_cmpxchg diff --git a/sysdeps/unix/sysv/linux/syscalls.list b/sysdeps/unix/sysv/linux/syscalls.list index 5f1352ad4..52e6dafc8 100644 --- a/sysdeps/unix/sysv/linux/syscalls.list +++ b/sysdeps/unix/sysv/linux/syscalls.list @@ -28,25 +28,24 @@ inotify_add_watch EXTRA inotify_add_watch i:isi inotify_add_watch inotify_init EXTRA inotify_init i: inotify_init inotify_init1 EXTRA inotify_init1 i:I inotify_init1 inotify_rm_watch EXTRA inotify_rm_watch i:ii inotify_rm_watch -ioperm - ioperm i:iii ioperm +ioperm - ioperm i:UUi ioperm iopl - iopl i:i iopl klogctl EXTRA syslog i:isi klogctl lchown - lchown i:sii __lchown lchown -mincore - mincore i:anV mincore -mlock - mlock i:bn mlock +mincore - mincore i:aUV mincore +mlock - mlock i:bU mlock mlockall - mlockall i:i mlockall -mount EXTRA mount i:sssip __mount mount -mremap EXTRA mremap b:ainip __mremap mremap -munlock - munlock i:ai munlock +mount EXTRA mount i:sssUp __mount mount +mremap EXTRA mremap b:aUUip __mremap mremap +munlock - munlock i:aU munlock munlockall - munlockall i: munlockall nfsservctl EXTRA nfsservctl i:ipp __compat_nfsservctl nfsservctl@GLIBC_2.0:GLIBC_2.28 pipe - pipe i:f __pipe pipe pipe2 - pipe2 i:fi __pipe2 pipe2 pivot_root EXTRA pivot_root i:ss pivot_root -prctl EXTRA prctl i:iiiii __prctl prctl query_module EXTRA query_module i:sipip __compat_query_module query_module@GLIBC_2.0:GLIBC_2.23 quotactl EXTRA quotactl i:isip quotactl -remap_file_pages - remap_file_pages i:piiii __remap_file_pages remap_file_pages +remap_file_pages - remap_file_pages i:pUiUi __remap_file_pages remap_file_pages sched_getp - sched_getparam i:ip __sched_getparam sched_getparam sched_gets - sched_getscheduler i:i __sched_getscheduler sched_getscheduler sched_primax - sched_get_priority_max i:i __sched_get_priority_max sched_get_priority_max @@ -55,8 +54,8 @@ sched_rr_gi - sched_rr_get_interval i:ip __sched_rr_get_interval sched_rr_get_in sched_setp - sched_setparam i:ip __sched_setparam sched_setparam sched_sets - sched_setscheduler i:iip __sched_setscheduler sched_setscheduler sched_yield - sched_yield i: __sched_yield sched_yield -sendfile - sendfile i:iipi sendfile -sendfile64 - sendfile64 i:iipi sendfile64 +sendfile - sendfile i:iipU sendfile +sendfile64 - sendfile64 i:iipU sendfile64 setfsgid EXTRA setfsgid i:i setfsgid setfsuid EXTRA setfsuid i:i setfsuid setpgid - setpgid i:ii __setpgid setpgid @@ -73,19 +72,19 @@ chown - chown i:sii __libc_chown __chown chown fchownat - fchownat i:isiii fchownat linkat - linkat i:isisi linkat mkdirat - mkdirat i:isi mkdirat -readlinkat - readlinkat i:issi readlinkat +readlinkat - readlinkat i:issU readlinkat symlinkat - symlinkat i:sis symlinkat unlinkat - unlinkat i:isi unlinkat -setxattr - setxattr i:sspii setxattr -lsetxattr - lsetxattr i:sspii lsetxattr -fsetxattr - fsetxattr i:ispii fsetxattr -getxattr - getxattr i:sspi getxattr -lgetxattr - lgetxattr i:sspi lgetxattr -fgetxattr - fgetxattr i:ispi fgetxattr -listxattr - listxattr i:ssi listxattr -llistxattr - llistxattr i:ssi llistxattr -flistxattr - flistxattr i:isi flistxattr +setxattr - setxattr i:sspUi setxattr +lsetxattr - lsetxattr i:sspUi lsetxattr +fsetxattr - fsetxattr i:ispUi fsetxattr +getxattr - getxattr i:sspU getxattr +lgetxattr - lgetxattr i:sspU lgetxattr +fgetxattr - fgetxattr i:ispU fgetxattr +listxattr - listxattr i:ssU listxattr +llistxattr - llistxattr i:ssU llistxattr +flistxattr - flistxattr i:isU flistxattr removexattr - removexattr i:ss removexattr lremovexattr - lremovexattr i:ss lremovexattr fremovexattr - fremovexattr i:is fremovexattr @@ -102,8 +101,6 @@ name_to_handle_at EXTRA name_to_handle_at i:isppi name_to_handle_at setns EXTRA setns i:ii setns -process_vm_readv EXTRA process_vm_readv i:ipipii process_vm_readv -process_vm_writev EXTRA process_vm_writev i:ipipii process_vm_writev memfd_create EXTRA memfd_create i:si memfd_create pkey_alloc EXTRA pkey_alloc i:ii pkey_alloc pkey_free EXTRA pkey_free i:i pkey_free diff --git a/sysdeps/unix/sysv/linux/x86_64/sysdep.h b/sysdeps/unix/sysv/linux/x86_64/sysdep.h index c2eb37e57..c7f740a1d 100644 --- a/sysdeps/unix/sysv/linux/x86_64/sysdep.h +++ b/sysdeps/unix/sysv/linux/x86_64/sysdep.h @@ -61,13 +61,31 @@ # define SYSCALL_ERROR_LABEL syscall_error # endif +/* PSEUDO and T_PSEUDO macros have 2 extra arguments for unsigned long + int arguments. */ +# define PSEUDOS_HAVE_ULONG_INDICES 1 + +# ifndef SYSCALL_ULONG_ARG_1 +# define SYSCALL_ULONG_ARG_1 0 +# define SYSCALL_ULONG_ARG_2 0 +# endif + # undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .text; \ - ENTRY (name) \ - DO_CALL (syscall_name, args); \ - cmpq $-4095, %rax; \ +# if SYSCALL_ULONG_ARG_1 +# define PSEUDO(name, syscall_name, args, ulong_arg_1, ulong_arg_2) \ + .text; \ + ENTRY (name) \ + DO_CALL (syscall_name, args, ulong_arg_1, ulong_arg_2); \ + cmpq $-4095, %rax; \ jae SYSCALL_ERROR_LABEL +# else +# define PSEUDO(name, syscall_name, args) \ + .text; \ + ENTRY (name) \ + DO_CALL (syscall_name, args, 0, 0); \ + cmpq $-4095, %rax; \ + jae SYSCALL_ERROR_LABEL +# endif # undef PSEUDO_END # define PSEUDO_END(name) \ @@ -75,10 +93,17 @@ END (name) # undef PSEUDO_NOERRNO -# define PSEUDO_NOERRNO(name, syscall_name, args) \ - .text; \ - ENTRY (name) \ - DO_CALL (syscall_name, args) +# if SYSCALL_ULONG_ARG_1 +# define PSEUDO_NOERRNO(name, syscall_name, args, ulong_arg_1, ulong_arg_2) \ + .text; \ + ENTRY (name) \ + DO_CALL (syscall_name, args, ulong_arg_1, ulong_arg_2) +# else +# define PSEUDO_NOERRNO(name, syscall_name, args) \ + .text; \ + ENTRY (name) \ + DO_CALL (syscall_name, args, 0, 0) +# endif # undef PSEUDO_END_NOERRNO # define PSEUDO_END_NOERRNO(name) \ @@ -87,11 +112,19 @@ # define ret_NOERRNO ret # undef PSEUDO_ERRVAL -# define PSEUDO_ERRVAL(name, syscall_name, args) \ - .text; \ - ENTRY (name) \ - DO_CALL (syscall_name, args); \ +# if SYSCALL_ULONG_ARG_1 +# define PSEUDO_ERRVAL(name, syscall_name, args, ulong_arg_1, ulong_arg_2) \ + .text; \ + ENTRY (name) \ + DO_CALL (syscall_name, args, ulong_arg_1, ulong_arg_2); \ + negq %rax +# else +# define PSEUDO_ERRVAL(name, syscall_name, args) \ + .text; \ + ENTRY (name) \ + DO_CALL (syscall_name, args, 0, 0); \ negq %rax +# endif # undef PSEUDO_END_ERRVAL # define PSEUDO_END_ERRVAL(name) \ @@ -163,8 +196,10 @@ Syscalls of more than 6 arguments are not supported. */ # undef DO_CALL -# define DO_CALL(syscall_name, args) \ +# define DO_CALL(syscall_name, args, ulong_arg_1, ulong_arg_2) \ DOARGS_##args \ + ZERO_EXTEND_##ulong_arg_1 \ + ZERO_EXTEND_##ulong_arg_2 \ movl $SYS_ify (syscall_name), %eax; \ syscall; @@ -176,6 +211,14 @@ # define DOARGS_5 DOARGS_4 # define DOARGS_6 DOARGS_5 +# define ZERO_EXTEND_0 /* nothing */ +# define ZERO_EXTEND_1 /* nothing */ +# define ZERO_EXTEND_2 /* nothing */ +# define ZERO_EXTEND_3 /* nothing */ +# define ZERO_EXTEND_4 /* nothing */ +# define ZERO_EXTEND_5 /* nothing */ +# define ZERO_EXTEND_6 /* nothing */ + #else /* !__ASSEMBLER__ */ /* Define a macro which expands inline into the wrapper code for a system call. */ @@ -210,12 +253,15 @@ /* Registers clobbered by syscall. */ # define REGISTERS_CLOBBERED_BY_SYSCALL "cc", "r11", "cx" -/* Create a variable 'name' based on type 'X' to avoid explicit types. - This is mainly used set use 64-bits arguments in x32. */ -#define TYPEFY(X, name) __typeof__ ((X) - (X)) name -/* Explicit cast the argument to avoid integer from pointer warning on - x32. */ -#define ARGIFY(X) ((__typeof__ ((X) - (X))) (X)) +/* NB: This also works when X is an array. For an array X, type of + (X) - (X) is ptrdiff_t, which is signed, since size of ptrdiff_t + == size of pointer, cast is a NOP. */ +#define TYPEFY1(X) __typeof__ ((X) - (X)) +/* Explicit cast the argument. */ +#define ARGIFY(X) ((TYPEFY1 (X)) (X)) +/* Create a variable 'name' based on type of variable 'X' to avoid + explicit types. */ +#define TYPEFY(X, name) __typeof__ (ARGIFY (X)) name #undef INTERNAL_SYSCALL #define INTERNAL_SYSCALL(name, err, nr, args...) \ diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/sysdep.h b/sysdeps/unix/sysv/linux/x86_64/x32/sysdep.h index 5bf9eed80..62e6f8fe1 100644 --- a/sysdeps/unix/sysv/linux/x86_64/x32/sysdep.h +++ b/sysdeps/unix/sysv/linux/x86_64/x32/sysdep.h @@ -26,4 +26,39 @@ #undef LO_HI_LONG #define LO_HI_LONG(val) (val) +#ifdef __ASSEMBLER__ +/* Zero-extend 32-bit unsigned long int arguments to 64 bits. */ +# undef ZERO_EXTEND_1 +# define ZERO_EXTEND_1 movl %edi, %edi; +# undef ZERO_EXTEND_2 +# define ZERO_EXTEND_2 movl %esi, %esi; +# undef ZERO_EXTEND_3 +# define ZERO_EXTEND_3 movl %edx, %edx; +# if SYSCALL_ULONG_ARG_1 == 4 || SYSCALL_ULONG_ARG_2 == 4 +# undef DOARGS_4 +# define DOARGS_4 movl %ecx, %r10d; +# else +# undef ZERO_EXTEND_4 +# define ZERO_EXTEND_4 movl %r10d, %r10d; +# endif +# undef ZERO_EXTEND_5 +# define ZERO_EXTEND_5 movl %r8d, %r8d; +# undef ZERO_EXTEND_6 +# define ZERO_EXTEND_6 movl %r9d, %r9d; +#else /* !__ASSEMBLER__ */ +# undef ARGIFY +/* Enforce zero-extension for pointers and array system call arguments. + For integer types, extend to int64_t (the full register) using a + regular cast, resulting in zero or sign extension based on the + signedness of the original type. */ +# define ARGIFY(X) \ + ({ \ + _Pragma ("GCC diagnostic push"); \ + _Pragma ("GCC diagnostic ignored \"-Wpointer-to-int-cast\""); \ + (__builtin_classify_type (X) == 5 \ + ? (uintptr_t) (X) : (int64_t) (X)); \ + _Pragma ("GCC diagnostic pop"); \ + }) +#endif /* __ASSEMBLER__ */ + #endif /* linux/x86_64/x32/sysdep.h */ diff --git a/sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S b/sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S index c763b7d87..74953245a 100644 --- a/sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S +++ b/sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S @@ -244,7 +244,7 @@ L(return): ret L(movsb): - cmpq __x86_shared_non_temporal_threshold(%rip), %rdx + cmp __x86_shared_non_temporal_threshold(%rip), %RDX_LP jae L(more_8x_vec) cmpq %rsi, %rdi jb 1f @@ -402,7 +402,7 @@ L(more_8x_vec): addq %r8, %rdx #if (defined USE_MULTIARCH || VEC_SIZE == 16) && IS_IN (libc) /* Check non-temporal store threshold. */ - cmpq __x86_shared_non_temporal_threshold(%rip), %rdx + cmp __x86_shared_non_temporal_threshold(%rip), %RDX_LP ja L(large_forward) #endif L(loop_4x_vec_forward): @@ -454,7 +454,7 @@ L(more_8x_vec_backward): subq %r8, %rdx #if (defined USE_MULTIARCH || VEC_SIZE == 16) && IS_IN (libc) /* Check non-temporal store threshold. */ - cmpq __x86_shared_non_temporal_threshold(%rip), %rdx + cmp __x86_shared_non_temporal_threshold(%rip), %RDX_LP ja L(large_backward) #endif L(loop_4x_vec_backward): diff --git a/sysdeps/x86_64/multiarch/strcmp-avx2.S b/sysdeps/x86_64/multiarch/strcmp-avx2.S index 48d03a9f4..ee82fa3e1 100644 --- a/sysdeps/x86_64/multiarch/strcmp-avx2.S +++ b/sysdeps/x86_64/multiarch/strcmp-avx2.S @@ -591,7 +591,14 @@ L(loop_cross_page_2_vec): movl $(PAGE_SIZE / (VEC_SIZE * 4) - 1), %esi testq %rdi, %rdi +# ifdef USE_AS_STRNCMP + /* At this point, if %rdi value is 0, it already tested + VEC_SIZE*4+%r10 byte starting from %rax. This label + checks whether strncmp maximum offset reached or not. */ + je L(string_nbyte_offset_check) +# else je L(back_to_loop) +# endif tzcntq %rdi, %rcx addq %r10, %rcx /* Adjust for number of bytes skipped. */ @@ -627,6 +634,14 @@ L(loop_cross_page_2_vec): VZEROUPPER ret +# ifdef USE_AS_STRNCMP +L(string_nbyte_offset_check): + leaq (VEC_SIZE * 4)(%r10), %r10 + cmpq %r10, %r11 + jbe L(zero) + jmp L(back_to_loop) +# endif + .p2align 4 L(cross_page_loop): /* Check one byte/dword at a time. */