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>
This commit is contained in:
Mickaël Salaün 2017-02-11 23:20:23 +01:00 committed by David S. Miller
parent cdc6a4ba88
commit d498f8719a

View File

@ -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