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>

1 files changed, 22 insertions, 11 deletions

diff --git a/scripts/objdiff b/scripts/objdiff
index 0644898d5fab..62e51dae2138 100755
--- 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
 }