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-rw-r--r--tools/testing/selftests/bpf/Makefile15
1 files changed, 13 insertions, 2 deletions
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
index a35f564f66a1..c7816fe60feb 100644
--- a/tools/testing/selftests/bpf/Makefile
+++ b/tools/testing/selftests/bpf/Makefile
@@ -1,13 +1,24 @@
-CFLAGS += -Wall -O2 -lcap -I../../../include/uapi -I../../../lib
+LIBDIR := ../../../lib
+BPFOBJ := $(LIBDIR)/bpf/bpf.o
+
+CFLAGS += -Wall -O2 -lcap -I../../../include/uapi -I$(LIBDIR)
test_objs = test_verifier test_tag test_maps test_lru_map test_lpm_map
TEST_PROGS := $(test_objs) test_kmod.sh
TEST_FILES := $(test_objs)
+.PHONY: all clean force
+
all: $(test_objs)
-$(test_objs): ../../../lib/bpf/bpf.o
+# force a rebuild of BPFOBJ when its dependencies are updated
+force:
+
+$(BPFOBJ): force
+ $(MAKE) -C $(dir $(BPFOBJ))
+
+$(test_objs): $(BPFOBJ)
include ../lib.mk