From b9a645b24adee0e54960e5171407c0cdb0324515 Mon Sep 17 00:00:00 2001
From: Joonsoo Kim <js1304@gmail.com>
Date: Tue, 11 Dec 2012 00:11:46 +0900
Subject: [PATCH] scripts/tags.sh: Support compiled source

We usually have interst in compiled files only,
because they are strongly related to individual's work.
Current tags.sh can't select compiled files, so support it.

We can use this functionality like below.
"make cscope O=. SRCARCH=xxxx COMPILED_SOURCE=compiled"

It must be executed after building the kernel.

Signed-off-by: Joonsoo Kim <js1304@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 scripts/tags.sh | 37 +++++++++++++++++++++++++++++++------
 1 file changed, 31 insertions(+), 6 deletions(-)

diff --git a/scripts/tags.sh b/scripts/tags.sh
index 8fb18d1da71b6..08f06c00745e4 100755
--- a/scripts/tags.sh
+++ b/scripts/tags.sh
@@ -96,6 +96,32 @@ all_sources()
 	find_other_sources '*.[chS]'
 }
 
+all_compiled_sources()
+{
+	for i in $(all_sources); do
+		case "$i" in
+			*.[cS])
+				j=${i/\.[cS]/\.o}
+				if [ -e $j ]; then
+					echo $i
+				fi
+				;;
+			*)
+				echo $i
+				;;
+		esac
+	done
+}
+
+all_target_sources()
+{
+	if [ -n "$COMPILED_SOURCE" ]; then
+		all_compiled_sources
+	else
+		all_sources
+	fi
+}
+
 all_kconfigs()
 {
 	for arch in $ALLSOURCE_ARCHS; do
@@ -111,18 +137,18 @@ all_defconfigs()
 
 docscope()
 {
-	(echo \-k; echo \-q; all_sources) > cscope.files
+	(echo \-k; echo \-q; all_target_sources) > cscope.files
 	cscope -b -f cscope.out
 }
 
 dogtags()
 {
-	all_sources | gtags -i -f -
+	all_target_sources | gtags -i -f -
 }
 
 exuberant()
 {
-	all_sources | xargs $1 -a                               \
+	all_target_sources | xargs $1 -a                        \
 	-I __initdata,__exitdata,__acquires,__releases          \
 	-I __read_mostly,____cacheline_aligned                  \
 	-I ____cacheline_aligned_in_smp                         \
@@ -174,7 +200,7 @@ exuberant()
 
 emacs()
 {
-	all_sources | xargs $1 -a                               \
+	all_target_sources | xargs $1 -a                        \
 	--regex='/^(ENTRY|_GLOBAL)(\([^)]*\)).*/\2/'            \
 	--regex='/^SYSCALL_DEFINE[0-9]?(\([^,)]*\).*/sys_\1/'   \
 	--regex='/^TRACE_EVENT(\([^,)]*\).*/trace_\1/'		\
@@ -221,11 +247,10 @@ xtags()
 	elif $1 --version 2>&1 | grep -iq emacs; then
 		emacs $1
 	else
-		all_sources | xargs $1 -a
+		all_target_sources | xargs $1 -a
         fi
 }
 
-
 # Support um (which uses SUBARCH)
 if [ "${ARCH}" = "um" ]; then
 	if [ "$SUBARCH" = "i386" ]; then
-- 
2.39.5