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authorH.J. Lu <hjl.tools@gmail.com>2006-02-24 15:47:25 +0000
committerH.J. Lu <hjl.tools@gmail.com>2006-02-24 15:47:25 +0000
commit508c39462ab96fb67c48d04807c999759f5011a0 (patch)
tree3324af9fed7a793e0506e235ba6b35428c20654f /bfd/elflink.c
parent62b3e31101ef2dfb96ee4652d5145e722b335e31 (diff)
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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.
Diffstat (limited to 'bfd/elflink.c')
-rw-r--r--bfd/elflink.c36
1 files changed, 27 insertions, 9 deletions
diff --git a/bfd/elflink.c b/bfd/elflink.c
index bbd3770..9a99b06 100644
--- a/bfd/elflink.c
+++ b/bfd/elflink.c
@@ -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;