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* elf32-arm.c (get_arm_elf_section_data): Cache the last pointer matched so

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that the typical case of scanning for the previous section to last one can be
handled quickly.
This commit is contained in:
Nick Clifton 2005-10-04 07:23:50 +00:00
parent 7b96829ccc
commit bd4aae00cc
2 changed files with 29 additions and 1 deletions
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6
bfd/ChangeLog
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@ -1,3 +1,9 @@
2005-10-04 Nick Clifton <nickc@redhat.com>
* elf32-arm.c (get_arm_elf_section_data): Cache the last pointer
matched so that the typical case of scanning for the previous
section to last one can be handled quickly.
2005-10-03 David Heine <dlheine@tensilica.com>
* elf32-xtensa.c (relocations_reach): Skip range check for

24
bfd/elf32-arm.c
View file

@ -6563,10 +6563,32 @@ static _arm_elf_section_data *
get_arm_elf_section_data (asection * sec)
{
struct section_list * entry;
static struct section_list * last_entry = NULL;
/* This is a short cut for the typical case where the sections are added
to the sections_with_arm_elf_section_data list in forward order and
then looked up here in backwards order. This makes a real difference
to the ld-srec/sec64k.exp linker test. */
if (last_entry != NULL)
{
if (last_entry->sec == sec)
return elf32_arm_section_data (sec);
if (last_entry->prev != NULL
&& last_entry->prev->sec == sec)
{
last_entry = last_entry->prev;
return elf32_arm_section_data (sec);
}
}
for (entry = sections_with_arm_elf_section_data; entry; entry = entry->next)
if (entry->sec == sec)
return elf32_arm_section_data (sec);
{
last_entry = entry;
return elf32_arm_section_data (sec);
}
return NULL;
}