ELF final_write_processing

Move setting of OSABI to final_write_processing, after symbols are
written.  This allows OSABI to be set based on symbols actually
written to the output rather than assuming input symbols will be
output.

Corrects object files such as the one generated on powerpc64le-linux
by ld-powerpc/pr23927.s which has a local STT_GNU_IFUNC symbol but
prior to this patch the file was marked ELFOSABI_NONE.

	* elf-bfd.h (enum elf_gnu_osabi): Rename from elf_gnu_symbols.
	Remove none, any, all enums.
	(struct elf_obj_tdata): Rename has_gnu_symbols field to has_gnu_osabi.
	(_bfd_elf_final_write_processing): Declare.
	* elf.c (_bfd_elf_write_object_contents): Unconditionally call
	elf_backend_final_write_processing.
	(_bfd_elf_post_process_headers): Move body of function to..
	(_bfd_elf_final_write_processing): ..here, but set EI_OSABI byte
	only when not already set.  Adjust for rename.
	* elfxx-target.h (elf_backend_final_write_processing): Default to
	_bfd_elf_final_write_processing.
	* elf-hppa.h (elf_hppa_final_write_processing): Call
	_bfd_elf_final_write_processing.
	* elf-m10300.c (_bfd_mn10300_elf_final_write_processing): Likewise.
	* elf-nacl.c (nacl_final_write_processing): Likewise.
	* elf-vxworks.c (elf_vxworks_final_write_processing): Likewise.
	* elf32-arc.c (arc_elf_final_write_processing): Likewise.
	* elf32-avr.c (bfd_elf_avr_final_write_processing): Likewise.
	* elf32-bfin.c (elf32_bfin_final_write_processing): Likewise.
	* elf32-cr16.c (_bfd_cr16_elf_final_write_processing): Likewise.
	* elf32-cris.c (cris_elf_final_write_processing): Likewise.
	* elf32-h8300.c (elf32_h8_final_write_processing): Likewise.
	* elf32-lm32.c (lm32_elf_final_write_processing): Likewise.
	* elf32-m32r.c (m32r_elf_final_write_processing): Likewise.
	* elf32-m68k.c (elf_m68k_final_write_processing): Likewise.
	* elf32-msp430.c (bfd_elf_msp430_final_write_processing): Likewise.
	* elf32-nds32.c (nds32_elf_final_write_processing): Likewise.
	* elf32-or1k.c (or1k_elf_final_write_processing): Likewise.
	* elf32-pj.c (pj_elf_final_write_processing): Likewise.
	* elf32-v850.c (v850_elf_final_write_processing): Likewise.
	* elf32-xc16x.c (elf32_xc16x_final_write_processing): Likewise.
	* elf32-xtensa.c (elf_xtensa_final_write_processing): Likewise.
	* elf64-ia64-vms.c (elf64_vms_final_write_processing): Likewise.
	* elfnn-ia64.c (elfNN_ia64_final_write_processing): Likewise.
	* elf32-arm.c (arm_final_write_processing): Split out from..
	(elf32_arm_final_write_processing): ..here.  Call
	_bfd_elf_final_write_processing.
	(elf32_arm_nacl_final_write_processing): Adjust.
	* elfxx-mips.c (_bfd_mips_final_write_processing): Split out from..
	(_bfd_mips_elf_final_write_processing): ..here.  Call
	_bfd_elf_final_write_processing.
	* elfxx-mips.h (_bfd_mips_final_write_processing): Declare.
	* elf32-mips.c (mips_vxworks_final_write_processing): Adjust.
	* elf32-ppc.c (ppc_final_write_processing): Split out from..
	(ppc_elf_final_write_processing): ..here.  Call
	_bfd_elf_final_write_processing.
	(ppc_elf_vxworks_final_write_processing): Adjust.
	* elf32-sparc.c (sparc_final_write_processing): Split out from..
	(elf32_sparc_final_write_processing): ..here.  Call
	_bfd_elf_final_write_processing.
	(elf32_sparc_vxworks_final_write_processing): Adjust.
	* elf32-d10v.c (elf_backend_final_write_processing): Don't define.
	* elf32-d30v.c (elf_backend_final_write_processing): Don't define.
	* elf32-m68hc11.c (elf_backend_final_write_processing): Don't define.
	* elf32-m68hc12.c (elf_backend_final_write_processing): Don't define.
	* elf32-s12z.c (elf_backend_final_write_processing): Don't define.
	* elf32-i386.c (elf_i386_check_relocs): Don't set has_gnu_symbols.
	* elf64-x86-64.c (elf_x86_64_check_relocs): Likewise.
	* elflink.c (elf_link_add_object_symbols): Likewise.
	(elf_link_output_symstrtab): Set has_gnu_osabi for symbols here
	instead.

1 files changed, 9 insertions, 3 deletions

diff --git a/bfd/elf32-sparc.c b/bfd/elf32-sparc.c
index f5c58630686..e6d18d377c7 100644
--- a/bfd/elf32-sparc.c
+++ b/bfd/elf32-sparc.c
@@ -117,8 +117,7 @@ elf32_sparc_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
    We need to set the e_machine field appropriately.  */
 
 static void
-elf32_sparc_final_write_processing (bfd *abfd,
-				    bfd_boolean linker ATTRIBUTE_UNUSED)
+sparc_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED)
 {
   switch (bfd_get_mach (abfd))
     {
@@ -157,6 +156,13 @@ elf32_sparc_final_write_processing (bfd *abfd,
     }
 }
 
+static void
+elf32_sparc_final_write_processing (bfd *abfd, bfd_boolean linker)
+{
+  sparc_final_write_processing (abfd, linker);
+  _bfd_elf_final_write_processing (abfd, linker);
+}
+
 /* Used to decide how to sort relocs in an optimal manner for the
    dynamic linker, before writing them out.  */
 
@@ -324,7 +330,7 @@ elf32_sparc_vxworks_link_hash_table_create (bfd *abfd)
 static void
 elf32_sparc_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
 {
-  elf32_sparc_final_write_processing (abfd, linker);
+  sparc_final_write_processing (abfd, linker);
   elf_vxworks_final_write_processing (abfd, linker);
 }