^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) #!/bin/bash
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) # SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) # objdiff - a small script for validating that a commit or series of commits
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) # didn't change object code.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) # Copyright 2014, Jason Cooper <jason@lakedaemon.net>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) # usage example:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) # $ git checkout COMMIT_A
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) # $ <your fancy build command here>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) # $ ./scripts/objdiff record path/to/*.o
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) # $ git checkout COMMIT_B
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) # $ <your fancy build command here>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) # $ ./scripts/objdiff record path/to/*.o
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) # $ ./scripts/objdiff diff COMMIT_A COMMIT_B
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) # $
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) # And to clean up (everything is in .tmp_objdiff/*)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) # $ ./scripts/objdiff clean all
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) # Note: 'make mrproper' will also remove .tmp_objdiff
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) SRCTREE=$(cd $(git rev-parse --show-toplevel 2>/dev/null); pwd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) if [ -z "$SRCTREE" ]; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) echo >&2 "ERROR: Not a git repository."
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) exit 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) TMPD=$SRCTREE/.tmp_objdiff
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) usage() {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) echo >&2 "Usage: $0 <command> <args>"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) echo >&2 " record <list of object files or directories>"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) echo >&2 " diff <commitA> <commitB>"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) echo >&2 " clean all | <commit>"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) exit 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) get_output_dir() {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) dir=${1%/*}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) if [ "$dir" = "$1" ]; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) dir=.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) dir=$(cd $dir; pwd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) echo $TMPD/$CMT${dir#$SRCTREE}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) do_objdump() {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) dir=$(get_output_dir $1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) base=${1##*/}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) stripped=$dir/${base%.o}.stripped
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) dis=$dir/${base%.o}.dis
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) [ ! -d "$dir" ] && mkdir -p $dir
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) # remove addresses for a cleaner diff
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) # http://dummdida.tumblr.com/post/60924060451/binary-diff-between-libc-from-scientificlinux-and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) $STRIP -g $1 -R __bug_table -R .note -R .comment -o $stripped
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) $OBJDUMP -D $stripped | sed -e "s/^[[:space:]]\+[0-9a-f]\+//" -e "s:^$stripped:$1:" > $dis
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) dorecord() {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) [ $# -eq 0 ] && usage
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) FILES="$*"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) CMT="`git rev-parse --short HEAD`"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) STRIP="${CROSS_COMPILE}strip"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) OBJDUMP="${CROSS_COMPILE}objdump"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) for d in $FILES; do
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) if [ -d "$d" ]; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) for f in $(find $d -name '*.o')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) do
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) do_objdump $f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) done
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) do_objdump $d
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) done
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) dodiff() {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) [ $# -ne 2 ] && [ $# -ne 0 ] && usage
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) if [ $# -eq 0 ]; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) SRC="`git rev-parse --short HEAD^`"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) DST="`git rev-parse --short HEAD`"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) SRC="`git rev-parse --short $1`"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) DST="`git rev-parse --short $2`"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) DIFF="`which colordiff`"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) if [ ${#DIFF} -eq 0 ] || [ ! -x "$DIFF" ]; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) DIFF="`which diff`"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) SRCD="$TMPD/$SRC"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) DSTD="$TMPD/$DST"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) if [ ! -d "$SRCD" ]; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) echo >&2 "ERROR: $SRCD doesn't exist"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) exit 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) if [ ! -d "$DSTD" ]; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) echo >&2 "ERROR: $DSTD doesn't exist"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) exit 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) $DIFF -Nurd $SRCD $DSTD
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) doclean() {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) [ $# -eq 0 ] && usage
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) [ $# -gt 1 ] && usage
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) if [ "x$1" = "xall" ]; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) rm -rf $TMPD/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) CMT="`git rev-parse --short $1`"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) if [ -d "$TMPD/$CMT" ]; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) rm -rf $TMPD/$CMT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) echo >&2 "$CMT not found"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) [ $# -eq 0 ] && usage
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) case "$1" in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) record)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) shift
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) dorecord $*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) ;;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) diff)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) shift
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) dodiff $*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) ;;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) clean)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) shift
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) doclean $*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) ;;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) *)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) echo >&2 "Unrecognized command '$1'"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) exit 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) ;;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) esac
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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