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[PATCH] PR ld/19739: Speedup mmo and pe orphan placement for relocatable link
- From: "H.J. Lu" <hongjiu dot lu at intel dot com>
- To: binutils at sourceware dot org
- Date: Tue, 1 Mar 2016 06:09:54 -0800
- Subject: [PATCH] PR ld/19739: Speedup mmo and pe orphan placement for relocatable link
- Authentication-results: sourceware.org; auth=none
- Reply-to: "H.J. Lu" <hjl dot tools at gmail dot com>
I checked in a fix for ELF ld. Here is similar patch for mmo and pe
linkers. OK for trunk?
H.J.
---
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
* emultempl/mmo.em (mmo_place_orphan): Don't merge flags of other
input sections for relocatable link.
* emultempl/pe.em (gld_${EMULATION_NAME}_place_orphan): Likewise.
* emultempl/pep.em (gld_${EMULATION_NAME}_place_orphan): Likewise.
---
ld/emultempl/mmo.em | 30 ++++++++++++++++++------------
ld/emultempl/pe.em | 30 ++++++++++++++++++------------
ld/emultempl/pep.em | 30 ++++++++++++++++++------------
3 files changed, 54 insertions(+), 36 deletions(-)
diff --git a/ld/emultempl/mmo.em b/ld/emultempl/mmo.em
index c2dcc76..b5a7aa0 100644
--- a/ld/emultempl/mmo.em
+++ b/ld/emultempl/mmo.em
@@ -107,22 +107,28 @@ mmo_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))
+ flags = (((flags ^ SEC_READONLY) | (nexts->flags ^ SEC_READONLY))
+ ^ SEC_READONLY);
+ }
+
/* Check for matching section type flags for sections we care about.
A section without contents can have SEC_LOAD == 0, but we still
want it attached to a sane section so the symbols appear as
expected. */
- 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))
- flags = (((flags ^ SEC_READONLY) | (nexts->flags ^ SEC_READONLY))
- ^ SEC_READONLY);
+
if ((flags & (SEC_ALLOC | SEC_READONLY)) != SEC_READONLY)
for (i = 0; i < sizeof (holds) / sizeof (holds[0]); i++)
if ((flags & holds[i].nonzero_flags) != 0)
diff --git a/ld/emultempl/pe.em b/ld/emultempl/pe.em
index f15c6c4..2b78536 100644
--- a/ld/emultempl/pe.em
+++ b/ld/emultempl/pe.em
@@ -2225,21 +2225,27 @@ gld_${EMULATION_NAME}_place_orphan (asection *s,
orphan_init_done = 1;
}
+ flags = s->flags;
+ if (!bfd_link_relocatable (&link_info))
+ {
+ nexts = s;
+ while ((nexts = bfd_get_next_section_by_name (nexts->owner,
+ nexts)))
+ if (nexts->output_section == NULL
+ && (nexts->flags & SEC_EXCLUDE) == 0
+ && ((nexts->flags ^ flags) & (SEC_LOAD | SEC_ALLOC)) == 0
+ && (nexts->owner->flags & DYNAMIC) == 0
+ && nexts->owner->usrdata != NULL
+ && !(((lang_input_statement_type *) nexts->owner->usrdata)
+ ->flags.just_syms))
+ flags = (((flags ^ SEC_READONLY)
+ | (nexts->flags ^ SEC_READONLY))
+ ^ SEC_READONLY);
+ }
+
/* Try to put the new output section in a reasonable place based
on the section name and section flags. */
- flags = s->flags;
- nexts = s;
- while ((nexts = bfd_get_next_section_by_name (nexts->owner, nexts)))
- if (nexts->output_section == NULL
- && (nexts->flags & SEC_EXCLUDE) == 0
- && ((nexts->flags ^ flags) & (SEC_LOAD | SEC_ALLOC)) == 0
- && (nexts->owner->flags & DYNAMIC) == 0
- && nexts->owner->usrdata != NULL
- && !(((lang_input_statement_type *) nexts->owner->usrdata)
- ->flags.just_syms))
- flags = (((flags ^ SEC_READONLY) | (nexts->flags ^ SEC_READONLY))
- ^ SEC_READONLY);
place = NULL;
if ((flags & SEC_ALLOC) == 0)
;
diff --git a/ld/emultempl/pep.em b/ld/emultempl/pep.em
index 054a984..ab7c473 100644
--- a/ld/emultempl/pep.em
+++ b/ld/emultempl/pep.em
@@ -1996,21 +1996,27 @@ gld_${EMULATION_NAME}_place_orphan (asection *s,
orphan_init_done = 1;
}
+ flags = s->flags;
+ if (!bfd_link_relocatable (&link_info))
+ {
+ nexts = s;
+ while ((nexts = bfd_get_next_section_by_name (nexts->owner,
+ nexts)))
+ 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))
+ flags = (((flags ^ SEC_READONLY)
+ | (nexts->flags ^ SEC_READONLY))
+ ^ SEC_READONLY);
+ }
+
/* Try to put the new output section in a reasonable place based
on the section name and section flags. */
- flags = s->flags;
- nexts = s;
- while ((nexts = bfd_get_next_section_by_name (nexts->owner, nexts)))
- 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))
- flags = (((flags ^ SEC_READONLY) | (nexts->flags ^ SEC_READONLY))
- ^ SEC_READONLY);
place = NULL;
if ((flags & SEC_ALLOC) == 0)
;
--
2.5.0