This is needed to force a rebuild of bpf.o when one of its dependencies (e.g. uapi/linux/bpf.h) is updated.
Add a phony target. Signed-off-by: Mickaël Salaün <[email protected]> Cc: Alexei Starovoitov <[email protected]> Cc: Daniel Borkmann <[email protected]> Cc: David S. Miller <[email protected]> Cc: Wang Nan <[email protected]> --- tools/testing/selftests/bpf/Makefile | 15 +++++++++++++-- 1 file 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 -- 2.11.0
