1#!/bin/sh 2 3usage() { 4 echo "Usage: ${0##*/} DIR1 DIR2" 5 echo 6 echo "Compares all object files recursivelty found in DIR1 and DIR2." 7 echo "Prints diff of their disassembly." 8 echo 9 exit $1 10} 11 12filter() { 13 # sed removes " address: " prefixes which mess up diff 14 sed $'s/^\\(\t*\\)[ ]*[0-9a-f][0-9a-f]*:[ \t]*/\\1/' \ 15 | sed 's/__GI_//g' 16} 17 18test -d "$1" || usage 1 19test -d "$2" || usage 1 20 21{ 22 ( 23 cd "$1" || exit 1 24 find -name '*.o' # -o -name '*.os' # -o -name '*.so' 25 ) 26 ( 27 cd "$2" || exit 1 28 find -name '*.o' # -o -name '*.os' # -o -name '*.so' 29 ) 30} | sed 's:^\./::' | sort | uniq | \ 31( 32while IFS='' read -r oname; do 33 if ! test -f "$1/$oname"; then 34 echo "Only $2/$oname" 35 continue 36 fi 37 if ! test -f "$2/$oname"; then 38 echo "Only $1/$oname" 39 continue 40 fi 41 diff -q -- "$1/$oname" "$2/$oname" >/dev/null && continue 42 (cd "$1" && { size "$oname"; objdump -dr "$oname" | filter; } >"$oname.disasm") 43 (cd "$2" && { size "$oname"; objdump -dr "$oname" | filter; } >"$oname.disasm") 44 diff -u -- "$1/$oname.disasm" "$2/$oname.disasm" 45done 46) 47