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authorMickaël Salaün <mic@digikod.net>2017-02-11 23:20:23 +0100
committerDavid S. Miller <davem@davemloft.net>2017-02-15 12:16:17 -0500
commitd498f8719a098a5df7c6dba4ea302df7afb51efd (patch)
tree3f3def3c3d9c6b8b249f4630ad715f9b37f7ca58 /tools/testing
parentcdc6a4ba88fbc26de1ffe8cbcaf0e41d316046fd (diff)
downloadlinux-d498f8719a098a5df7c6dba4ea302df7afb51efd.tar.bz2
bpf: Rebuild bpf.o for any dependency update
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 <mic@digikod.net> Cc: Alexei Starovoitov <ast@fb.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: David S. Miller <davem@davemloft.net> Cc: Wang Nan <wangnan0@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/testing')
-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