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PR binutils/13897

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* elf64-ppc.c (opd_entry_value): Rewrite cache code.
This commit is contained in:
Alan Modra
2012-06-01 12:26:55 +00:00
parent 145fa769e6
commit ee1e4edefe
2 changed files with 37 additions and 35 deletions
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5
bfd/ChangeLog
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@ -1,3 +1,8 @@
2012-06-01 Alan Modra <amodra@gmail.com>
PR binutils/13897
* elf64-ppc.c (opd_entry_value): Rewrite cache code.
2012-05-29 Tom Tromey <tromey@redhat.com> 2012-05-29 Tom Tromey <tromey@redhat.com>
* opncls.c (bfd_fopen): Always close fd on failure. * opncls.c (bfd_fopen): Always close fd on failure.

45
bfd/elf64-ppc.c
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@ -5533,46 +5533,43 @@ 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)
{ {
/* PR 13897: Cache the loaded section to speed up the search. */ static asection *last_opd_sec, *last_code_sec;
static asection * buf_sec = NULL; static bfd_vma last_opd_off, last_entry_vma;
static char buf[8]; static bfd_boolean sec_search_done;
static bfd_vma buf_val = 0;
static asection * buf_likely = NULL;
if (buf_sec == opd_sec) if (last_opd_sec != opd_sec
|| last_opd_off != offset
|| (code_sec != NULL && !sec_search_done))
{ {
if (code_sec != NULL) char buf[8];
* 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;
buf_val = bfd_get_64 (opd_bfd, buf); last_opd_sec = opd_sec;
last_opd_off = offset;
last_entry_vma = bfd_get_64 (opd_bfd, buf);
sec_search_done = FALSE;
if (code_sec != NULL) if (code_sec != NULL)
{ {
asection *sec; asection *sec;
buf_likely = NULL; sec_search_done = TRUE;
last_code_sec = NULL;
for (sec = opd_bfd->sections; sec != NULL; sec = sec->next) for (sec = opd_bfd->sections; sec != NULL; sec = sec->next)
if (sec->vma <= buf_val if (sec->vma <= last_entry_vma
&& (sec->flags & SEC_LOAD) != 0 && (sec->flags & SEC_LOAD) != 0
&& (sec->flags & SEC_ALLOC) != 0) && (sec->flags & SEC_ALLOC) != 0)
buf_likely = sec; last_code_sec = sec;
if (buf_likely != NULL) }
}
if (code_sec != NULL && last_code_sec != NULL)
{ {
*code_sec = buf_likely; *code_sec = last_code_sec;
if (code_off != NULL) if (code_off != NULL)
*code_off = buf_val - buf_likely->vma; *code_off = last_entry_vma - last_code_sec->vma;
} }
} return last_entry_vma;
else
buf_likely = NULL;
return buf_val;
} }
BFD_ASSERT (is_ppc64_elf (opd_bfd)); BFD_ASSERT (is_ppc64_elf (opd_bfd));