scripts: objdiff: support directories for the augument of record command

For example,

  $ scripts/objdiff record init drivers/usb

disassembles all the objects under init and drivers/usb directories.

This feature would be useful when we change various files under the
specific directory.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Michal Marek <mmarek@suse.cz>

diff --git a/scripts/objdiff b/scripts/objdiff
index 0644898..62e51da 100755 (executable)
--- a/scripts/objdiff
+++ b/scripts/objdiff
@@ -36,7 +36,7 @@ TMPD=$SRCTREE/.tmp_objdiff
 
 usage() {
        echo >&2 "Usage: $0 <command> <args>"
-       echo >&2 "  record    <list of object files>"
+       echo >&2 "  record    <list of object files or directories>"
        echo >&2 "  diff      <commitA> <commitB>"
        echo >&2 "  clean     all | <commit>"
        exit 1
@@ -54,6 +54,18 @@ get_output_dir() {
        echo $TMPD/$CMT${dir#$SRCTREE}
 }
 
+do_objdump() {
+       dir=$(get_output_dir $1)
+       base=${1##*/}
+       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
+       $OBJDUMP -D $1 | sed "s/^[[:space:]]\+[0-9a-f]\+//" > $dis
+}
+
 dorecord() {
        [ $# -eq 0 ] && usage
 
@@ -63,16 +75,15 @@ dorecord() {
 
        OBJDUMP="${CROSS_COMPILE}objdump"
 
-       for f in $FILES; do
-               dir=$(get_output_dir $f)
-               base=${f##*/}
-               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
-               $OBJDUMP -D $f | sed "s/^[[:space:]]\+[0-9a-f]\+//" > $dis
+       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
 }