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2006-02-24 H.J. Lu <hongjiu.lu@intel.com>

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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.
This commit is contained in:
H.J. Lu
2006-02-24 15:47:25 +00:00
parent 62b3e31101
commit 508c39462a
5 changed files with 54 additions and 9 deletions
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36
bfd/elflink.c
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@@ -2187,6 +2187,20 @@ _bfd_elf_link_output_relocs (bfd *output_bfd,
return TRUE;
}
/* Make weak undefined symbols in PIE dynamic. */
bfd_boolean
_bfd_elf_link_hash_fixup_symbol (struct bfd_link_info *info,
struct elf_link_hash_entry *h)
{
if (info->pie
&& h->dynindx == -1
&& h->root.type == bfd_link_hash_undefweak)
return bfd_elf_link_record_dynamic_symbol (info, h);
return TRUE;
}
/* Fix up the flags for a symbol. This handles various cases which
can only be fixed after all the input files are seen. This is
currently called by both adjust_dynamic_symbol and
@@ -2197,6 +2211,8 @@ bfd_boolean
_bfd_elf_fix_symbol_flags (struct elf_link_hash_entry *h,
struct elf_info_failed *eif)
{
const struct elf_backend_data *bed = NULL;
/* If this symbol was mentioned in a non-ELF file, try to set
DEF_REGULAR and REF_REGULAR correctly. This is the only way to
permit a non-ELF file to correctly refer to a symbol defined in
@@ -2255,6 +2271,15 @@ _bfd_elf_fix_symbol_flags (struct elf_link_hash_entry *h,
h->def_regular = 1;
}
/* Backend specific symbol fixup. */
if (elf_hash_table (eif->info)->dynobj)
{
bed = get_elf_backend_data (elf_hash_table (eif->info)->dynobj);
if (bed->elf_backend_fixup_symbol
&& !(*bed->elf_backend_fixup_symbol) (eif->info, h))
return FALSE;
}
/* If this is a final link, and the symbol was defined as a common
symbol in a regular object file, and there was no definition in
any dynamic object, then the linker will have allocated space for
@@ -2280,11 +2305,8 @@ _bfd_elf_fix_symbol_flags (struct elf_link_hash_entry *h,
|| ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
&& h->def_regular)
{
const struct elf_backend_data *bed;
bfd_boolean force_local;
bed = get_elf_backend_data (elf_hash_table (eif->info)->dynobj);
force_local = (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
|| ELF_ST_VISIBILITY (h->other) == STV_HIDDEN);
(*bed->elf_backend_hide_symbol) (eif->info, h, force_local);
@@ -2323,12 +2345,8 @@ _bfd_elf_fix_symbol_flags (struct elf_link_hash_entry *h,
if (weakdef->def_regular)
h->u.weakdef = NULL;
else
{
const struct elf_backend_data *bed;
bed = get_elf_backend_data (elf_hash_table (eif->info)->dynobj);
(*bed->elf_backend_copy_indirect_symbol) (eif->info, weakdef, h);
}
(*bed->elf_backend_copy_indirect_symbol) (eif->info, weakdef,
h);
}
return TRUE;