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Speedup ELF orphan placement for relocatable link

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Since there is no need to place output sections in specific order for
relocatable link, we can skip merging flags of other input sections.

	PR ld/19739
	* ld/emultempl/elf32.em (gld${EMULATION_NAME}_place_orphan): Don't
	merge flags of other input sections for relocatable link.
This commit is contained in:
H.J. Lu 2016-02-29 11:04:22 -08:00
parent 4a93215950
commit 077fcd6a3b
1 changed files with 20 additions and 13 deletions
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33
ld/emultempl/elf32.em
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@ -1946,25 +1946,32 @@ gld${EMULATION_NAME}_place_orphan (asection *s,
return os;
}
flags = s->flags;
if (!bfd_link_relocatable (&link_info))
{
nexts = s;
while ((nexts = bfd_get_next_section_by_name (nexts->owner, nexts))
!= NULL)
if (nexts->output_section == NULL
&& (nexts->flags & SEC_EXCLUDE) == 0
&& ((nexts->flags ^ flags) & (SEC_LOAD | SEC_ALLOC)) == 0
&& (nexts->owner->flags & DYNAMIC) == 0
&& nexts->owner->usrdata != NULL
&& !(((lang_input_statement_type *) nexts->owner->usrdata)
->flags.just_syms)
&& _bfd_elf_match_sections_by_type (nexts->owner, nexts,
s->owner, s))
flags = (((flags ^ SEC_READONLY)
| (nexts->flags ^ SEC_READONLY))
^ SEC_READONLY);
}
/* Decide which segment the section should go in based on the
section name and section flags. We put loadable .note sections
right after the .interp section, so that the PT_NOTE segment is
stored right after the program headers where the OS can read it
in the first page. */
flags = s->flags;
nexts = s;
while ((nexts = bfd_get_next_section_by_name (nexts->owner, nexts)) != NULL)
if (nexts->output_section == NULL
&& (nexts->flags & SEC_EXCLUDE) == 0
&& ((nexts->flags ^ flags) & (SEC_LOAD | SEC_ALLOC)) == 0
&& (nexts->owner->flags & DYNAMIC) == 0
&& nexts->owner->usrdata != NULL
&& !(((lang_input_statement_type *) nexts->owner->usrdata)
->flags.just_syms)
&& _bfd_elf_match_sections_by_type (nexts->owner, nexts, s->owner, s))
flags = (((flags ^ SEC_READONLY) | (nexts->flags ^ SEC_READONLY))
^ SEC_READONLY);
place = NULL;
if ((flags & (SEC_ALLOC | SEC_DEBUGGING)) == 0)
place = &hold[orphan_nonalloc];