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PR binutils/13897

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* elf64-ppc.c (opd_entry_value): When dealing with sections
	without relocs, keep the last section loaded in order to avoid
	unnecessary reloads.
This commit is contained in:
Nick Clifton
2012-04-11 14:16:09 +00:00
parent 1233b4a775
commit 4841cf0c4c
2 changed files with 35 additions and 10 deletions
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7
bfd/ChangeLog
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@ -1,3 +1,10 @@
2012-04-11 Nick Clifton <nickc@redhat.com>
PR binutils/13897
* elf64-ppc.c (opd_entry_value): When dealing with sections
without relocs, keep the last section loaded in order to avoid
unnecessary reloads.
2012-04-09 Roland McGrath <mcgrathr@google.com> 2012-04-09 Roland McGrath <mcgrathr@google.com>
* elf.c (_bfd_elf_map_sections_to_segments): Set INFO->user_phdrs. * elf.c (_bfd_elf_map_sections_to_segments): Set INFO->user_phdrs.

36
bfd/elf64-ppc.c
View File

@ -5533,28 +5533,46 @@ opd_entry_value (asection *opd_sec,
at a final linked executable with addr2line or somesuch. */ at a final linked executable with addr2line or somesuch. */
if (opd_sec->reloc_count == 0) if (opd_sec->reloc_count == 0)
{ {
char buf[8]; /* PR 13897: Cache the loaded section to speed up the search. */
static asection * buf_sec = NULL;
static char buf[8];
static bfd_vma buf_val = 0;
static asection * buf_likely = NULL;
if (buf_sec == opd_sec)
{
if (code_sec != NULL)
* code_sec = buf_likely;
if (code_off != NULL && buf_likely != NULL)
* code_off = buf_val - buf_likely->vma;
return buf_val;
}
if (!bfd_get_section_contents (opd_bfd, opd_sec, buf, offset, 8)) if (!bfd_get_section_contents (opd_bfd, opd_sec, buf, offset, 8))
return (bfd_vma) -1; return (bfd_vma) -1;
buf_sec = opd_sec;
val = bfd_get_64 (opd_bfd, buf); buf_val = bfd_get_64 (opd_bfd, buf);
if (code_sec != NULL) if (code_sec != NULL)
{ {
asection *sec, *likely = NULL; asection *sec;
buf_likely = NULL;
for (sec = opd_bfd->sections; sec != NULL; sec = sec->next) for (sec = opd_bfd->sections; sec != NULL; sec = sec->next)
if (sec->vma <= val if (sec->vma <= buf_val
&& (sec->flags & SEC_LOAD) != 0 && (sec->flags & SEC_LOAD) != 0
&& (sec->flags & SEC_ALLOC) != 0) && (sec->flags & SEC_ALLOC) != 0)
likely = sec; buf_likely = sec;
if (likely != NULL) if (buf_likely != NULL)
{ {
*code_sec = likely; *code_sec = buf_likely;
if (code_off != NULL) if (code_off != NULL)
*code_off = val - likely->vma; *code_off = buf_val - buf_likely->vma;
} }
} }
return val; else
buf_likely = NULL;
return buf_val;
} }
BFD_ASSERT (is_ppc64_elf (opd_bfd)); BFD_ASSERT (is_ppc64_elf (opd_bfd));