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 24dde624d55836a792f7da572e7710146e43b1e2..db8dddd81f0cd82ec0f230a2125d6fd60909ea46 100644 (file)
--- a/bfd/elf32-arm.c
+++ b/bfd/elf32-arm.c
@@ -20165,7 +20165,11 @@ 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