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authorAlexandre Oliva <aoliva@redhat.com>2010-06-21 00:23:06 +0000
committerAlexandre Oliva <aoliva@gcc.gnu.org>2010-06-21 00:23:06 +0000
commit339325b30301c66ae49cefe390585530110befc9 (patch)
tree10127b0ac2c8329bd4281e72b0dc157bd8f3d8b7 /contrib
parent6122686d1336afd10254c45e7fc8f27fb99598da (diff)
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compare-debug: Drop LTO sections.
contrib/ChangeLog: * compare-debug: Drop LTO sections. config/ChangeLog: * bootstrap-lto.mk: New. gcc/ChangeLog: * doc/install.texi: Document bootstrap-lto. From-SVN: r161061
Diffstat (limited to 'contrib')
-rw-r--r--contrib/ChangeLog4
-rwxr-xr-xcontrib/compare-debug24
2 files changed, 20 insertions, 8 deletions
diff --git a/contrib/ChangeLog b/contrib/ChangeLog
index 5037767..1227153 100644
--- a/contrib/ChangeLog
+++ b/contrib/ChangeLog
@@ -1,3 +1,7 @@
+2010-06-20 Alexandre Oliva <aoliva@redhat.com>
+
+ * compare-debug: Drop LTO sections.
+
2010-06-15 Bernhard Reutner-Fischer <aldot@gcc.gnu.org>
* gcc_update: Support updating a git clone.
diff --git a/contrib/compare-debug b/contrib/compare-debug
index 98c80f9..820721c 100755
--- a/contrib/compare-debug
+++ b/contrib/compare-debug
@@ -100,9 +100,11 @@ else
done
# If we found .eh_frame in one but not the other, or if we could not
- # find a command to tell, try to strip off the .eh_frame section
- # from both.
- if test "x$cmp1" != "x$cmp2" || test "x$cmd" = "x"; then
+ # find a command to tell, or if there are LTO sections, try to strip
+ # off the .eh_frame and LTO sections from both.
+ if test "x$cmp1" != "x$cmp2" || test "x$cmd" = "x" ||
+ $cmd --section-headers "$1.$suf1" | grep '.gnu.lto_' > /dev/null ||
+ $cmd --section-headers "$2.$suf2" | grep '.gnu.lto_' > /dev/null ; then
suf3=$suf1.
while test -f "$1.$suf3"; do
suf3=$suf3.
@@ -115,21 +117,27 @@ else
trap 'rm -f "$1.$suf1" "$2.$suf2" "$1.$suf3" "$2.$suf4"' 0 1 2 15
- echo stripping off .eh_frame, then retrying >&2
+ echo stripping off .eh_frame and LTO sections, then retrying >&2
+
+ seclist=".eh_frame .rel.eh_frame .rela.eh_frame"
+ if test "x$cmd" != "x"; then
+ seclist="$seclist "`{ $cmd --section-headers "$1.$suf1"; $cmd --section-headers "$2.$suf2"; } | sed -n 's,.* \(\.gnu\.lto_[^ ]*\).*,\1,p' | sort -u`
+ fi
+ rsopts=`for sec in $seclist; do echo " --remove-section $sec"; done`
if (objcopy -v) 2>&1 | grep ' --remove-section' > /dev/null; then
- objcopy --remove-section .eh_frame --remove-section .rel.eh_frame --remove-section .rela.eh_frame "$1.$suf1" "$1.$suf3"
+ objcopy $rsopts "$1.$suf1" "$1.$suf3"
mv "$1.$suf3" "$1.$suf1"
- objcopy --remove-section .eh_frame --remove-section .rel.eh_frame --remove-section .rela.eh_frame "$2.$suf2" "$2.$suf4"
+ objcopy $rsopts "$2.$suf2" "$2.$suf4"
mv "$2.$suf4" "$2.$suf2"
elif (strip --help) 2>&1 | grep ' --remove-section' > /dev/null; then
cp "$1.$suf1" "$1.$suf3"
- strip --remove-section .eh_frame --remove-section .rel.eh_frame --remove-section .rela.eh_frame "$1.$suf3"
+ strip $rsopts "$1.$suf3"
mv "$1.$suf3" "$1.$suf1"
cp "$2.$suf2" "$2.$suf4"
- strip --remove-section .eh_frame --remove-section .rel.eh_frame --remove-section .rela.eh_frame "$2.$suf4"
+ strip $rsopts "$2.$suf4"
mv "$2.$suf4" "$2.$suf2"
else
echo failed to strip off .eh_frame >&2