kmod/patch: clean only rebuildable objs

Relax the clean target to leave the kpatch-build generated output.o file. This is helpful after invoking kpatch-build in debug mode and rebuilding $CACHEDIR/tmp/patch in a debugging session. Signed-off-by: Joe Lawrence <[email protected]>
sumanthkorikkar · Oct 1, 2021 · 6673c69 · 6673c69
1 parent 607ee53
commit 6673c69
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/kmod/patch/Makefile b/kmod/patch/Makefile
@@ -2,6 +2,9 @@ KPATCH_BUILD ?= /lib/modules/$(shell uname -r)/build
 KPATCH_MAKE = $(MAKE) -C $(KPATCH_BUILD) M=$(PWD) CFLAGS_MODULE='$(CFLAGS_MODULE)'
 LDFLAGS += $(KPATCH_LDFLAGS)
 
+# object files that this Makefile can (re)build on its own
+BUILDABLE_OBJS=$(filter-out output.o, $(wildcard *.o))
+
 obj-m += $(KPATCH_NAME).o
 ldflags-y += -T $(src)/kpatch.lds
 targets += kpatch.lds
@@ -19,5 +22,5 @@ patch-hook.o: patch-hook.c kpatch-patch-hook.c livepatch-patch-hook.c
 	$(KPATCH_MAKE) patch-hook.o
 
 clean:
-	$(RM) -Rf .*.o.cmd .*.ko.cmd .tmp_versions *.o *.ko *.mod.c \
+	$(RM) -Rf .*.o.cmd .*.ko.cmd .tmp_versions $(BUILDABLE_OBJS) *.ko *.mod.c \
 	Module.symvers