blob: 307474874428d6c92f129fbdebce472b0a2a544a
1 | #!/bin/sh |
2 | |
3 | usage() { |
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 | |
12 | filter() { |
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 | |
18 | test -d "$1" || usage 1 |
19 | test -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 | ( |
32 | while 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" |
45 | done |
46 | ) |
47 |