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bpf: Rebuild bpf.o for any dependency update

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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]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Mickaël Salaün authored and David S. Miller committed 2017-02-15 12:16:17 -05:00
1 parent cdc6a4ba88
commit d498f8719a
1 file changed
+13 -2
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tools/testing/selftests/bpf/Makefile
+13 -2
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@@ -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