armhf-64k-alignment

The upstream binutils commit below reduced the section alignment of
armhf executables (including shared libraries) from 64k to 4k, on the
basis that the additional bloat is not justified, given that arm64 hosts
running 64k pagesize kernels with armhf user space are not used in
practice.

However, the situation is slightly different today on Debian, where a
16k pagesize kernel is provided that enables compat support, and is
therefore able to execute armhf user space. The only impediment is the
fact that armhf binaries are no longer compatible with this, due to the
change below.

To accommodate this use case, revert the patch. This makes the generated
executables compatible with compat mode on arm64 systems running 16k
kernels.

Gbp-Pq: Name armhf-64k-alignment.diff

diff --git a/bfd/elf32-arm.c b/bfd/elf32-arm.c
index e27aff48411ce8b4ebbe9bd8d6ee4395e376d8ca..7afe9f958bfb18ba702f45ee6e7ea638e1394f2b 100644 (file)
--- a/bfd/elf32-arm.c
+++ b/bfd/elf32-arm.c
@@ -20157,7 +20157,11 @@ elf32_arm_backend_symbol_processing (bfd *abfd, asymbol *sym)
 #define ELF_ARCH                       bfd_arch_arm
 #define ELF_TARGET_ID                  ARM_ELF_DATA
 #define ELF_MACHINE_CODE               EM_ARM
+#ifdef __QNXTARGET__
 #define ELF_MAXPAGESIZE                        0x1000
+#else
+#define ELF_MAXPAGESIZE                        0x10000
+#endif
 #define ELF_COMMONPAGESIZE             0x1000
 
 #define bfd_elf32_mkobject                     elf32_arm_mkobject