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>

diff --git a/scripts/tags.sh b/scripts/tags.sh
index 8fb18d1da71b6abfe51a011efc3c9cc20caea948..08f06c00745e408d967e7e42121ec00ae016d90a 100755 (executable)
--- 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