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| author | Alan Modra <amodra@gmail.com> | 2005-05-23 16:22:25 +0000 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2005-05-23 16:22:25 +0000 |
| commit | 9edfd1af330deb8c8ab6aeade232be87819bed22 (patch) | |
| tree | ec9a0a6de2f5b0d6910d07042577ccb20b5407ef | |
| parent | 41a865baa2a36ea10adadb3f404be567074551bf (diff) | |
| download | gdb-9edfd1af330deb8c8ab6aeade232be87819bed22.zip gdb-9edfd1af330deb8c8ab6aeade232be87819bed22.tar.gz gdb-9edfd1af330deb8c8ab6aeade232be87819bed22.tar.bz2 | |
* elf32-ppc.c (ppc_elf_check_relocs): For old gcc -fPIC code
force old plt layout.
| -rw-r--r-- | bfd/ChangeLog | 5 | ||||
| -rw-r--r-- | bfd/elf32-ppc.c | 26 |
2 files changed, 27 insertions, 4 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 4983c7a..7803520 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,8 @@ +2005-05-24 Alan Modra <amodra@bigpond.net.au> + + * elf32-ppc.c (ppc_elf_check_relocs): For old gcc -fPIC code + force old plt layout. + 2005-05-22 Richard Henderson <rth@redhat.com> * elf64-alpha.c (elf64_alpha_relax_section): Ignore non-allocated diff --git a/bfd/elf32-ppc.c b/bfd/elf32-ppc.c index 585bf7d..c911923 100644 --- a/bfd/elf32-ppc.c +++ b/bfd/elf32-ppc.c @@ -3160,14 +3160,32 @@ ppc_elf_check_relocs (bfd *abfd, info->flags |= DF_STATIC_TLS; goto dodyn; - /* When creating a shared object, we must copy these - relocs into the output file. We create a reloc - section in dynobj and make room for the reloc. */ + case R_PPC_REL32: + if (h == NULL + && got2 != NULL + && (sec->flags & SEC_CODE) != 0 + && (info->shared || info->pie) + && !htab->old_plt) + { + /* Old -fPIC gcc code has .long LCTOC1-LCFx just before + the start of a function, which assembles to a REL32 + reference to .got2. If we detect one of these, then + force the old PLT layout because the linker cannot + reliably deduce the GOT pointer value needed for + PLT call stubs. */ + asection *s; + + s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, sec, + r_symndx); + if (s == got2) + htab->old_plt = 1; + } + /* fall through */ + case R_PPC_REL24: case R_PPC_REL14: case R_PPC_REL14_BRTAKEN: case R_PPC_REL14_BRNTAKEN: - case R_PPC_REL32: if (h == NULL) break; if (h == htab->elf.hgot) |