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authorTomer Levi <Tomer.Levi@nsc.com>2004-12-14 15:36:23 +0000
committerTomer Levi <Tomer.Levi@nsc.com>2004-12-14 15:36:23 +0000
commite3f9830cf4a64ea7786b08a325f9002c0821a4d7 (patch)
tree897358979ece5b3bfdb343fbd0bf07bdbeb563c2 /bfd/elf32-crx.c
parentc314987d19b8736574973103eca3a3ef1d281d0c (diff)
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2004-12-14 Tomer Levi <Tomer.Levi@nsc.com>
* elf32-crx.c (elf32_crx_relax_delete_bytes): Add 'struct bfd_link_info *' to prototype, to make hash info available. Prevent wrapped symbols from being adjusted twice.
Diffstat (limited to 'bfd/elf32-crx.c')
-rw-r--r--bfd/elf32-crx.c42
1 files changed, 34 insertions, 8 deletions
diff --git a/bfd/elf32-crx.c b/bfd/elf32-crx.c
index 50d2ea1..548191e 100644
--- a/bfd/elf32-crx.c
+++ b/bfd/elf32-crx.c
@@ -30,7 +30,7 @@ static reloc_howto_type *elf_crx_reloc_type_lookup
static void elf_crx_info_to_howto
(bfd *, arelent *, Elf_Internal_Rela *);
static bfd_boolean elf32_crx_relax_delete_bytes
- (bfd *, asection *, bfd_vma, int);
+ (struct bfd_link_info *, bfd *, asection *, bfd_vma, int);
static bfd_reloc_status_type crx_elf_final_link_relocate
(reloc_howto_type *, bfd *, bfd *, asection *,
bfd_byte *, bfd_vma, bfd_vma, bfd_vma,
@@ -573,8 +573,8 @@ crx_elf_final_link_relocate (reloc_howto_type *howto, bfd *input_bfd,
/* Delete some bytes from a section while relaxing. */
static bfd_boolean
-elf32_crx_relax_delete_bytes (bfd *abfd, asection *sec,
- bfd_vma addr, int count)
+elf32_crx_relax_delete_bytes (struct bfd_link_info *link_info, bfd *abfd,
+ asection *sec, bfd_vma addr, int count)
{
Elf_Internal_Shdr *symtab_hdr;
unsigned int sec_shndx;
@@ -586,6 +586,7 @@ elf32_crx_relax_delete_bytes (bfd *abfd, asection *sec,
Elf_Internal_Sym *isymend;
struct elf_link_hash_entry **sym_hashes;
struct elf_link_hash_entry **end_hashes;
+ struct elf_link_hash_entry **start_hashes;
unsigned int symcount;
sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
@@ -662,13 +663,38 @@ elf32_crx_relax_delete_bytes (bfd *abfd, asection *sec,
/* Now adjust the global symbols defined in this section. */
symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
- symtab_hdr->sh_info);
- sym_hashes = elf_sym_hashes (abfd);
+ sym_hashes = start_hashes = elf_sym_hashes (abfd);
end_hashes = sym_hashes + symcount;
for (; sym_hashes < end_hashes; sym_hashes++)
{
struct elf_link_hash_entry *sym_hash = *sym_hashes;
+ /* The '--wrap SYMBOL' option is causing a pain when the object file,
+ containing the definition of __wrap_SYMBOL, includes a direct
+ call to SYMBOL as well. Since both __wrap_SYMBOL and SYMBOL reference
+ the same symbol (which is __wrap_SYMBOL), but still exist as two
+ different symbols in 'sym_hashes', we don't want to adjust
+ the global symbol __wrap_SYMBOL twice.
+ This check is only relevant when symbols are being wrapped. */
+ if (link_info->wrap_hash != NULL)
+ {
+ struct elf_link_hash_entry **cur_sym_hashes;
+
+ /* Loop only over the symbols whom been already checked. */
+ for (cur_sym_hashes = start_hashes; cur_sym_hashes < sym_hashes;
+ cur_sym_hashes++)
+ {
+ /* If the current symbol is identical to 'sym_hash', that means
+ the symbol was already adjusted (or at least checked). */
+ if (*cur_sym_hashes == sym_hash)
+ break;
+ }
+ /* Don't adjust the symbol again. */
+ if (cur_sym_hashes < sym_hashes)
+ continue;
+ }
+
if ((sym_hash->root.type == bfd_link_hash_defined
|| sym_hash->root.type == bfd_link_hash_defweak)
&& sym_hash->root.u.def.section == sec
@@ -1078,7 +1104,7 @@ elf32_crx_relax_section (bfd *abfd, asection *sec,
R_CRX_REL16);
/* Delete two bytes of data. */
- if (!elf32_crx_relax_delete_bytes (abfd, sec,
+ if (!elf32_crx_relax_delete_bytes (link_info, abfd, sec,
irel->r_offset + 2, 2))
goto error_return;
@@ -1123,7 +1149,7 @@ elf32_crx_relax_section (bfd *abfd, asection *sec,
R_CRX_REL8);
/* Delete two bytes of data. */
- if (!elf32_crx_relax_delete_bytes (abfd, sec,
+ if (!elf32_crx_relax_delete_bytes (link_info, abfd, sec,
irel->r_offset + 2, 2))
goto error_return;
@@ -1173,7 +1199,7 @@ elf32_crx_relax_section (bfd *abfd, asection *sec,
R_CRX_REL8_CMP);
/* Delete two bytes of data. */
- if (!elf32_crx_relax_delete_bytes (abfd, sec,
+ if (!elf32_crx_relax_delete_bytes (link_info, abfd, sec,
irel->r_offset + 4, 2))
goto error_return;
@@ -1214,7 +1240,7 @@ elf32_crx_relax_section (bfd *abfd, asection *sec,
R_CRX_IMM16);
/* Delete two bytes of data. */
- if (!elf32_crx_relax_delete_bytes (abfd, sec,
+ if (!elf32_crx_relax_delete_bytes (link_info, abfd, sec,
irel->r_offset + 2, 2))
goto error_return;