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authorAlan Modra <amodra@gmail.com>2009-08-04 08:03:35 +0000
committerAlan Modra <amodra@gmail.com>2009-08-04 08:03:35 +0000
commita9585d22b53bfd23847a70cb13ebdd3e300886ae (patch)
tree3763c20a7385a5051589073a634999c14e56c50b /bfd/elf32-ppc.c
parent6fba7a0ec6e9841dd386c26c76e6fb00cbcae6d5 (diff)
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* elf32-ppc.c (ppc_elf_relax_section): Correct conditions under
which find_plt_ent is called. Delete redundant code.
Diffstat (limited to 'bfd/elf32-ppc.c')
-rw-r--r--bfd/elf32-ppc.c79
1 files changed, 41 insertions, 38 deletions
diff --git a/bfd/elf32-ppc.c b/bfd/elf32-ppc.c
index d1baec9..215b4b3 100644
--- a/bfd/elf32-ppc.c
+++ b/bfd/elf32-ppc.c
@@ -5934,6 +5934,7 @@ ppc_elf_relax_section (bfd *abfd,
bfd_byte *hit_addr;
unsigned long t0;
struct elf_link_hash_entry *h;
+ struct plt_entry **plist;
unsigned char sym_type;
switch (r_type)
@@ -5997,12 +5998,8 @@ ppc_elf_relax_section (bfd *abfd,
|| h->root.type == bfd_link_hash_warning)
h = (struct elf_link_hash_entry *) h->root.u.i.link;
- tsec = NULL;
- toff = 0;
- if (tsec != NULL)
- ;
- else if (h->root.type == bfd_link_hash_defined
- || h->root.type == bfd_link_hash_defweak)
+ if (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)
{
tsec = h->root.u.def.section;
toff = h->root.u.def.value;
@@ -6019,42 +6016,48 @@ ppc_elf_relax_section (bfd *abfd,
sym_type = h->type;
}
- if (is_branch_reloc (r_type))
+ /* The condition here under which we call find_plt_ent must
+ match that in relocate_section. If we call find_plt_ent here
+ but not in relocate_section, or vice versa, then the branch
+ destination used here may be incorrect. */
+ plist = NULL;
+ if (h != NULL)
{
- struct plt_entry **plist = NULL;
-
- if (h != NULL)
+ /* We know is_branch_reloc (r_type) is true. */
+ if (h->type == STT_GNU_IFUNC
+ || r_type == R_PPC_PLTREL24)
plist = &h->plt.plist;
- else if (sym_type == STT_GNU_IFUNC)
- {
- bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
- struct plt_entry **local_plt = (struct plt_entry **)
- (local_got_offsets + symtab_hdr->sh_info);
- plist = local_plt + ELF32_R_SYM (irel->r_info);
- }
- if (plist != NULL)
- {
- bfd_vma addend = 0;
- struct plt_entry *ent;
+ }
+ else if (sym_type == STT_GNU_IFUNC
+ && elf_local_got_offsets (abfd) != NULL)
+ {
+ bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
+ struct plt_entry **local_plt = (struct plt_entry **)
+ (local_got_offsets + symtab_hdr->sh_info);
+ plist = local_plt + ELF32_R_SYM (irel->r_info);
+ }
+ if (plist != NULL)
+ {
+ bfd_vma addend = 0;
+ struct plt_entry *ent;
- if (r_type == R_PPC_PLTREL24 && link_info->shared)
- addend = irel->r_addend;
- ent = find_plt_ent (plist, got2, addend);
- if (ent != NULL)
+ if (r_type == R_PPC_PLTREL24 && link_info->shared)
+ addend = irel->r_addend;
+ ent = find_plt_ent (plist, got2, addend);
+ if (ent != NULL)
+ {
+ if (htab->plt_type == PLT_NEW
+ || h == NULL
+ || !htab->elf.dynamic_sections_created
+ || h->dynindx == -1)
{
- if (htab->plt_type == PLT_NEW
- || h == NULL
- || !htab->elf.dynamic_sections_created
- || h->dynindx == -1)
- {
- tsec = htab->glink;
- toff = ent->glink_offset;
- }
- else
- {
- tsec = htab->plt;
- toff = ent->plt.offset;
- }
+ tsec = htab->glink;
+ toff = ent->glink_offset;
+ }
+ else
+ {
+ tsec = htab->plt;
+ toff = ent->plt.offset;
}
}
}