# Compare stripped copies of two given object files.
-# Copyright (C) 2007, 2008, 2009 Free Software Foundation
+# Copyright (C) 2007, 2008, 2009, 2010 Free Software Foundation
# Originally by Alexandre Oliva <aoliva@redhat.com>
# This file is part of GCC.
trap 'rm -f "$1.$suf1" "$2.$suf2"' 0 1 2 15
-cp "$1" "$1.$suf1"
-strip "$1.$suf1"
+case `uname -s` in
+Darwin)
+ # The strip command on darwin does not remove all debug info.
+ # Fortunately, we can use ld to do it instead.
+ ld -S -r -no_uuid "$1" -o "$1.$suf1"
+ ld -S -r -no_uuid "$2" -o "$2.$suf2"
+ ;;
+*)
+ cp "$1" "$1.$suf1"
+ strip "$1.$suf1"
-cp "$2" "$2.$suf2"
-strip "$2.$suf2"
+ cp "$2" "$2.$suf2"
+ strip "$2.$suf2"
+ ;;
+esac
if cmp "$1.$suf1" "$2.$suf2"; then
status=0
cmp2=
for t in objdump readelf eu-readelf; do
- if ($t --help) 2>&1 | grep -e '--\[*section-\]*headers' > /dev/null; then
+ if ($t --help) 2>&1 | grep ' --\[*section-\]*headers' > /dev/null; then
cmd=$t
$cmd --section-headers "$1.$suf1" | grep '\.eh_frame' > /dev/null
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.
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 -e "--remove-section" > /dev/null; then
- objcopy --remove-section .eh_frame --remove-section .rel.eh_frame --remove-section .rela.eh_frame "$1.$suf1" "$1.$suf3"
+ if (objcopy -v) 2>&1 | grep ' --remove-section' > /dev/null; then
+ 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 -e --remove-section > /dev/null; then
+ 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
trap "exit $status; exit" 0 1 2 15
+if test -f "$1".gkd || test -f "$2".gkd; then
+ if cmp "$1".gkd "$2".gkd; then
+ :
+ else
+ status=$?
+ fi
+fi
+
exit $status