+BUILD_SUBDIRS = threads userprog vm filesys
+
all::
- @echo "Run 'make' in the threads, userprog, filesys, or vm directory."
+ @echo "Run 'make' in subdirectories: $(BUILD_SUBDIRS)."
@echo "This top-level make has only 'clean' targets."
+CLEAN_SUBDIRS = $(BUILD_SUBDIRS) examples utils
+
clean::
- for d in threads; do $(MAKE) -C $$d $@; done
+ for d in $(CLEAN_SUBDIRS); do $(MAKE) -C $$d $@; done
+ rm -f TAGS tags
-distclean::
- $(MAKE) clean
+distclean:: clean
find . -name '*~' -exec rm '{}' \;
+
+TAGS_SUBDIRS = $(BUILD_SUBDIRS) devices lib
+TAGS_SOURCES = find $(TAGS_SUBDIRS) -name \*.[chS] -print
+
+TAGS::
+ etags --members `$(TAGS_SOURCES)`
+
+tags::
+ ctags -T --no-warn `$(TAGS_SOURCES)`
+
+cscope.files::
+ $(TAGS_SOURCES) > cscope.files
+
+cscope:: cscope.files
+ cscope -b -q -k