source: branches/2.2.9/mindi-busybox/scripts/mkdiff_obj @ 3320

Last change on this file since 3320 was 3320, checked in by bruno, 5 years ago
  • Re-add (thanks git BTW) the 2.2.9 branch which had been destroyed in the move to 3.0
  • Property svn:executable set to *
File size: 1.0 KB
Line 
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)
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