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Add section caches to coff_data_type

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* libcoff-in.h (struct coff_tdata): Add section_by_index and section_by_target_index hash tables.
  * libcoff.h: Regenerate.
  * coffcode.h (htab_hash_section_index): New function. (htab_eq_section_index): New function. (htab_hash_section_target_index): New function. (htab_eq_section_target_index): New function. (coff_mkobject_hool): Create the hash tables.
  * peicode.h: Add the same new functions. (pe_mkobject_hook): Create the hash tables.
  * coff-x86_64.c (coff_amd64_rtype_to_howto): Use the new tables to speed up lookups.
  * coffgen.c (coff_section_from_bfd_index): Likewise. (_bfd_coff_close_and_cleanup): Delete the hash tables.
This commit is contained in:
Oleg Tolmatcev
2023-05-16 14:25:32 +01:00
committed by Nick Clifton
parent 73eff1cbd3
commit 0e759f232b
7 changed files with 171 additions and 11 deletions
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45
bfd/coffgen.c
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@@ -42,6 +42,7 @@
#include "libbfd.h"
#include "coff/internal.h"
#include "libcoff.h"
#include "hashtab.h"
/* Take a section header read from a coff file (in HOST byte order),
and make a BFD "section" out of it. This is used by ECOFF. */
@@ -360,8 +361,6 @@ coff_object_p (bfd *abfd)
asection *
coff_section_from_bfd_index (bfd *abfd, int section_index)
{
struct bfd_section *answer = abfd->sections;
if (section_index == N_ABS)
return bfd_abs_section_ptr;
if (section_index == N_UNDEF)
@@ -369,6 +368,32 @@ coff_section_from_bfd_index (bfd *abfd, int section_index)
if (section_index == N_DEBUG)
return bfd_abs_section_ptr;
struct bfd_section *answer;
htab_t table = coff_data (abfd)->section_by_target_index;
if (htab_elements (table) == 0)
{
answer = abfd->sections;
while (answer)
{
void **slot = htab_find_slot (table, answer, INSERT);
if (slot == NULL)
return bfd_und_section_ptr;
*slot = answer;
answer = answer->next;
}
}
struct bfd_section needle;
needle.target_index = section_index;
answer = htab_find (table, &needle);
if (answer != NULL)
return answer;
answer = abfd->sections;
while (answer)
{
if (answer->target_index == section_index)
@@ -3142,6 +3167,21 @@ _bfd_coff_close_and_cleanup (bfd *abfd)
if (tdata != NULL)
{
if (bfd_family_coff (abfd) && bfd_get_format (abfd) == bfd_object)
{
if (tdata->section_by_index)
{
htab_delete (tdata->section_by_index);
tdata->section_by_index = NULL;
}
if (tdata->section_by_target_index)
{
htab_delete (tdata->section_by_target_index);
tdata->section_by_target_index = NULL;
}
}
/* PR 25447:
Do not clear the keep_syms and keep_strings flags.
These may have been set by pe_ILF_build_a_bfd() indicating
@@ -3158,5 +3198,6 @@ _bfd_coff_close_and_cleanup (bfd *abfd)
_bfd_stab_cleanup (abfd, &tdata->line_info);
}
}
return _bfd_generic_close_and_cleanup (abfd);
}