btrfs-progs: build: add rule for building cscope index

Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/Makefile b/Makefile
index 18e4e82..8354224 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -43,6 +43,7 @@ $(error Makefile.inc not generated, please configure first)
 endif
 
 TAGS_CMD := ctags
+CSCOPE_CMD := cscope -u -b -c -q
 
 include Makefile.extrawarn
 
@@ -475,11 +476,16 @@ tags: FORCE
        @echo "    [TAGS]   $(TAGS_CMD)"
        $(Q)$(TAGS_CMD) *.[ch] image/*.[ch] convert/*.[ch] mkfs/*.[ch]
 
+cscope: FORCE
+       @echo "    [CSCOPE] $(CSCOPE_CMD)"
+       $(Q)ls -1 *.[ch] image/*.[ch] convert/*.[ch] mkfs/*.[ch] > cscope.files
+       $(Q)$(CSCOPE_CMD)
+
 clean-all: clean clean-doc clean-gen
 
 clean: $(CLEANDIRS)
        @echo "Cleaning"
-       $(Q)$(RM) -f -- $(progs) cscope.out *.o *.o.d \
+       $(Q)$(RM) -f -- $(progs) *.o *.o.d \
                kernel-lib/*.o kernel-lib/*.o.d \
                image/*.o image/*.o.d \
                convert/*.o convert/*.o.d \
@@ -499,6 +505,7 @@ clean-gen:
        $(Q)$(RM) -rf -- version.h config.status config.cache connfig.log \
                configure.lineno config.status.lineno Makefile.inc \
                Documentation/Makefile tags \
+               cscope.files cscope.out cscope.in.out cscope.po.out \
                config.log config.h config.h.in~ aclocal.m4 \
                configure autom4te.cache/ config/