Distinguish a weak defined symbol from a regular defined symbol.

	* linker.c (enum link_action): Add DEFW.
	(link_action): Add bfd_link_hash_defweak column.
	(_bfd_generic_link_add_one_symbol): Add DEFW case.  Handle
	bfd_link_hash_defweak in a few other cases.
	* Many files (bfd_link_hash_undefweak): Renamed from
	bfd_link_hash_weak.
	* aoutx.h (aout_link_write_symbols): Handle bfd_link_hash_defweak.
	(aout_link_write_other_symbol): Likewise.
	(aout_link_input_section_std): Likewise.
	(aout_link_input_section_ext): Likewise.
	* bout.c (get_value): Likewise.
	* coff-a29k.c (coff_a29k_relocate_section): Likewise.
	* coff-alpha.c (alpha_convert_external_reloc): Likewise.
	(alpha_relocate_section): Likewise.
	* coff-mips.c (mips_relocate_section): Likewise.
	(mips_relax_section): Likewise.
	(bfd_mips_ecoff_create_embedded_relocs): Likewise.
	* cofflink.c (coff_write_global_sym): Likewise.
	(_bfd_coff_generic_relocate_section): Likewise.
	* ecoff.c (ecoff_link_add_externals): Likewise.
	(ecoff_link_write_external): LIkewise.
	* elf32-hppa.c (elf32_hppa_relocate_section): Likewise.
	(elf32_hppa_size_stubs): Likewise.
	* elf32-i386.c (elf_i386_adjust_dynamic_symbol): Likewise.
	(elf_i386_relocate_section): Likewise.
	(elf_i386_finish_dynamic_symbol): Likewise.
	* elf32-mips.c (mips_elf_output_extsym): Likewise.
	(mips_elf_relocate_section): Likewise.
	* elf32-sparc.c (elf32_sparc_adjust_dynamic_symbol): Likewise.
	(elf32_sparc_relocate_section): Likewise.
	* elfcode.h (elf_link_add_object_symbols): Likewise.
	(elf_adjust_dynamic_symbol): Likewise.
	(elf_bfd_final_link): Likewise.
	(elf_link_output_extsym): Likewise.
	* i386linux.c (linux_add_one_symbol): Likewise.
	(linux_tally_symbols): Likewise.
	(linux_finish_dynamic_link): Likewise.
	* linker.c (_bfd_generic_link_output_symbols): Likewise.
	(set_symbol_from_hash): Likewise.
	* reloc16.c (bfd_coff_reloc16_get_value): Likewise.
	(bfd_perform_slip): Likewise.
	* sunos.c (sunos_add_one_symbol): Likewise.
	(sunos_scan_std_relocs): Likewise.
	(sunos_scan_ext_relocs): Likewise.
	(sunos_scan_dynamic_symbol): Likewise.
	(sunos_write_dynamic_symbol): Likewise.

1 files changed, 7 insertions, 6 deletions

diff --git a/bfd/libelf.h b/bfd/libelf.h
index 2620077..d732bef 100644
--- a/bfd/libelf.h
+++ b/bfd/libelf.h
@@ -308,12 +308,13 @@ struct elf_backend_data
      referenced by a regular object.  This is called after all the
      input files have been seen, but before the SIZE_DYNAMIC_SECTIONS
      function has been called.  The hash table entry should be
-     bfd_link_hash_defined, and it should be defined in a section from
-     a dynamic object.  Dynamic object sections are not included in
-     the final link, and this function is responsible for changing the
-     value to something which the rest of the link can deal with.
-     This will normally involve adding an entry to the .plt or .got or
-     some such section, and setting the symbol to point to that.  */
+     bfd_link_hash_defined ore bfd_link_hash_defweak, and it should be
+     defined in a section from a dynamic object.  Dynamic object
+     sections are not included in the final link, and this function is
+     responsible for changing the value to something which the rest of
+     the link can deal with.  This will normally involve adding an
+     entry to the .plt or .got or some such section, and setting the
+     symbol to point to that.  */
   boolean (*elf_backend_adjust_dynamic_symbol)
     PARAMS ((struct bfd_link_info *info, struct elf_link_hash_entry *h));