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Index of /FSS-OZR/root/sys/dev/char/7:128/subsystem/vcsu5
Index of /FSS-OZR/root/sys/dev/char/7:128/subsystem/vcsu5
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# SPDX-License-Identifier: GPL-2.0-only
# objdiff - a small script for validating that a commit or series of commits
# didn't change object code.
#
# Copyright 2014, Jason Cooper
#
# usage example:
#
# $ git checkout COMMIT_A
# $
# $ ./scripts/objdiff record path/to/*.o
#
# $ git checkout COMMIT_B
# $
# $ ./scripts/objdiff record path/to/*.o
#
# $ ./scripts/objdiff diff COMMIT_A COMMIT_B
# $
# And to clean up (everything is in .objdiff/*)
# $ ./scripts/objdiff clean all
#
# Note: 'make mrproper' will also remove .objdiff
SRCTREE=$(cd $(git rev-parse --show-toplevel 2>/dev/null); pwd)
if [ -z "$SRCTREE" ]; then
echo >&2 "ERROR: Not a git repository."
exit 1
fi
TMPD=$SRCTREE/.objdiff
usage() {
echo >&2 "Usage: $0 "
echo >&2 " record "
echo >&2 " diff "
echo >&2 " clean all | "
exit 1
}
get_output_dir() {
dir=${1%/*}
if [ "$dir" = "$1" ]; then
dir=.
fi
dir=$(cd $dir; pwd)
echo $TMPD/$CMT${dir#$SRCTREE}
}
do_objdump() {
dir=$(get_output_dir $1)
base=${1##*/}
stripped=$dir/${base%.o}.stripped
dis=$dir/${base%.o}.dis
[ ! -d "$dir" ] && mkdir -p $dir
# remove addresses for a cleaner diff
# http://dummdida.tumblr.com/post/60924060451/binary-diff-between-libc-from-scientificlinux-and
$STRIP -g $1 -R __bug_table -R .note -R .comment -o $stripped
$OBJDUMP -D $stripped | sed -e "s/^[[:space:]]\+[0-9a-f]\+//" -e "s:^$stripped:$1:" > $dis
}
dorecord() {
[ $# -eq 0 ] && usage
FILES="$*"
CMT="`git rev-parse --short HEAD`"
STRIP="${CROSS_COMPILE}strip"
OBJDUMP="${CROSS_COMPILE}objdump"
for d in $FILES; do
if [ -d "$d" ]; then
for f in $(find $d -name '*.o')
do
do_objdump $f
done
else
do_objdump $d
fi
done
}
dodiff() {
[ $# -ne 2 ] && [ $# -ne 0 ] && usage
if [ $# -eq 0 ]; then
SRC="`git rev-parse --short HEAD^`"
DST="`git rev-parse --short HEAD`"
else
SRC="`git rev-parse --short $1`"
DST="`git rev-parse --short $2`"
fi
DIFF="`which colordiff`"
if [ ${#DIFF} -eq 0 ] || [ ! -x "$DIFF" ]; then
DIFF="`which diff`"
fi
SRCD="$TMPD/$SRC"
DSTD="$TMPD/$DST"
if [ ! -d "$SRCD" ]; then
echo >&2 "ERROR: $SRCD doesn't exist"
exit 1
fi