diff --git a/.gitignore b/.gitignore
index 789f57ee0..5fb0bdebf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -40,4 +40,5 @@ massif-*
 /GSYMS
 /GTAGS
 /TAGS
+/cscope*.out
 /tags
diff --git a/Makefile b/Makefile
index bcc247a34..f9c454676 100644
--- a/Makefile
+++ b/Makefile
@@ -117,5 +117,10 @@ tags: $(C_SOURCE_FILES)
 	$(CTAGS) $@ $(C_SOURCE_FILES)
 TAGS: $(C_SOURCE_FILES)
 	etags -o $@ $(C_SOURCE_FILES)
+global: GPATH GRTAGS GSYMS GTAGS
 GPATH GRTAGS GSYMS GTAGS: $(C_SOURCE_FILES)
 	ls $(C_SOURCE_FILES) | gtags -f - --gtagsconf .globalrc
+cscope: cscope.in.out cscope.po.out cscope.out
+cscope.in.out cscope.po.out cscope.out: $(C_SOURCE_FILES)
+	cscope -bq -u -Iinclude -Ilibrary $(patsubst %,-I%,$(wildcard 3rdparty/*/include)) -Itests/include $(C_SOURCE_FILES)
+.PHONY: cscope global