2006-02-24 H.J. Lu <hongjiu.lu@intel.com>
PR ld/2218 * elf-bfd.h (elf_backend_data): Add elf_backend_fixup_symbol. (_bfd_elf_link_hash_fixup_symbol): New. * elflink.c (_bfd_elf_link_hash_fixup_symbol): New. (_bfd_elf_fix_symbol_flags): Call elf_backend_fixup_symbol if it isn't NULL. * elfxx-ia64.c (elf_backend_fixup_symbol): Defined. * elfxx-target.h (elf_backend_fixup_symbol): New. (elfNN_bed): Initialize elf_backend_fixup_symbol.
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H.J. Lu
parent
62b3e31101
commit
508c39462a
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@ -1,3 +1,18 @@
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2006-02-24 H.J. Lu <hongjiu.lu@intel.com>
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PR ld/2218
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* elf-bfd.h (elf_backend_data): Add elf_backend_fixup_symbol.
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(_bfd_elf_link_hash_fixup_symbol): New.
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* elflink.c (_bfd_elf_link_hash_fixup_symbol): New.
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(_bfd_elf_fix_symbol_flags): Call elf_backend_fixup_symbol if
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it isn't NULL.
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* elfxx-ia64.c (elf_backend_fixup_symbol): Defined.
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* elfxx-target.h (elf_backend_fixup_symbol): New.
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(elfNN_bed): Initialize elf_backend_fixup_symbol.
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2006-02-23 H.J. Lu <hongjiu.lu@intel.com>
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* cpu-ia64-opc.c (ins_immu5b): New.
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@ -883,6 +883,11 @@ struct elf_backend_data
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void (*elf_backend_hide_symbol)
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(struct bfd_link_info *, struct elf_link_hash_entry *, bfd_boolean);
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/* A function to do additional symbol fixup, called by
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_bfd_elf_fix_symbol_flags. */
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bfd_boolean (*elf_backend_fixup_symbol)
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(struct bfd_link_info *, struct elf_link_hash_entry *);
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/* Merge the backend specific symbol attribute. */
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void (*elf_backend_merge_symbol_attribute)
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(struct elf_link_hash_entry *, const Elf_Internal_Sym *, bfd_boolean,
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@ -1476,6 +1481,8 @@ extern void _bfd_elf_link_hash_copy_indirect
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struct elf_link_hash_entry *);
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extern void _bfd_elf_link_hash_hide_symbol
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(struct bfd_link_info *, struct elf_link_hash_entry *, bfd_boolean);
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extern bfd_boolean _bfd_elf_link_hash_fixup_symbol
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(struct bfd_link_info *, struct elf_link_hash_entry *);
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extern bfd_boolean _bfd_elf_link_hash_table_init
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(struct elf_link_hash_table *, bfd *,
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struct bfd_hash_entry *(*)
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@ -2187,6 +2187,20 @@ _bfd_elf_link_output_relocs (bfd *output_bfd,
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return TRUE;
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}
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/* Make weak undefined symbols in PIE dynamic. */
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bfd_boolean
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_bfd_elf_link_hash_fixup_symbol (struct bfd_link_info *info,
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struct elf_link_hash_entry *h)
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{
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if (info->pie
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&& h->dynindx == -1
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&& h->root.type == bfd_link_hash_undefweak)
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return bfd_elf_link_record_dynamic_symbol (info, h);
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return TRUE;
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}
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/* Fix up the flags for a symbol. This handles various cases which
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can only be fixed after all the input files are seen. This is
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currently called by both adjust_dynamic_symbol and
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@ -2197,6 +2211,8 @@ bfd_boolean
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_bfd_elf_fix_symbol_flags (struct elf_link_hash_entry *h,
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struct elf_info_failed *eif)
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{
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const struct elf_backend_data *bed = NULL;
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/* If this symbol was mentioned in a non-ELF file, try to set
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DEF_REGULAR and REF_REGULAR correctly. This is the only way to
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permit a non-ELF file to correctly refer to a symbol defined in
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@ -2255,6 +2271,15 @@ _bfd_elf_fix_symbol_flags (struct elf_link_hash_entry *h,
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h->def_regular = 1;
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}
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/* Backend specific symbol fixup. */
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if (elf_hash_table (eif->info)->dynobj)
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{
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bed = get_elf_backend_data (elf_hash_table (eif->info)->dynobj);
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if (bed->elf_backend_fixup_symbol
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&& !(*bed->elf_backend_fixup_symbol) (eif->info, h))
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return FALSE;
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}
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/* If this is a final link, and the symbol was defined as a common
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symbol in a regular object file, and there was no definition in
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any dynamic object, then the linker will have allocated space for
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@ -2280,11 +2305,8 @@ _bfd_elf_fix_symbol_flags (struct elf_link_hash_entry *h,
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|| ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
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&& h->def_regular)
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{
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const struct elf_backend_data *bed;
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bfd_boolean force_local;
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bed = get_elf_backend_data (elf_hash_table (eif->info)->dynobj);
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force_local = (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
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|| ELF_ST_VISIBILITY (h->other) == STV_HIDDEN);
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(*bed->elf_backend_hide_symbol) (eif->info, h, force_local);
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@ -2323,12 +2345,8 @@ _bfd_elf_fix_symbol_flags (struct elf_link_hash_entry *h,
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if (weakdef->def_regular)
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h->u.weakdef = NULL;
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else
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{
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const struct elf_backend_data *bed;
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bed = get_elf_backend_data (elf_hash_table (eif->info)->dynobj);
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(*bed->elf_backend_copy_indirect_symbol) (eif->info, weakdef, h);
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}
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(*bed->elf_backend_copy_indirect_symbol) (eif->info, weakdef,
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h);
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}
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return TRUE;
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@ -5305,6 +5305,7 @@ elfNN_hpux_backend_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED,
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#define elf_backend_want_dynbss 0
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#define elf_backend_copy_indirect_symbol elfNN_ia64_hash_copy_indirect
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#define elf_backend_hide_symbol elfNN_ia64_hash_hide_symbol
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#define elf_backend_fixup_symbol _bfd_elf_link_hash_fixup_symbol
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#define elf_backend_reloc_type_class elfNN_ia64_reloc_type_class
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#define elf_backend_rela_normal 1
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#define elf_backend_special_sections elfNN_ia64_special_sections
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@ -420,6 +420,9 @@
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#ifndef elf_backend_hide_symbol
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#define elf_backend_hide_symbol _bfd_elf_link_hash_hide_symbol
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#endif
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#ifndef elf_backend_fixup_symbol
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#define elf_backend_fixup_symbol NULL
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#endif
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#ifndef elf_backend_merge_symbol_attribute
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#define elf_backend_merge_symbol_attribute NULL
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#endif
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@ -598,6 +601,7 @@ static const struct elf_backend_data elfNN_bed =
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elf_backend_output_arch_syms,
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elf_backend_copy_indirect_symbol,
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elf_backend_hide_symbol,
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elf_backend_fixup_symbol,
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elf_backend_merge_symbol_attribute,
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elf_backend_ignore_undef_symbol,
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elf_backend_emit_relocs,
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