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selftests/bpf: fix broken build, take 2

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Merge of 'linux-kselftest-4.11-rc1':

1. Partially removed use of 'test_objs' target, breaking force rebuild of
BPFOBJ, introduced in commit d498f8719a ("bpf: Rebuild bpf.o for any
dependency update").

  Update target so dependency on BPFOBJ is restored.

2. Introduced commit 2047f1d8ba ("selftests: Fix the .c linking rule")
which fixes order of LDLIBS.

  Commit d02d8986a7 ("bpf: Always test unprivileged programs") added
libcap dependency into CFLAGS. Use LDLIBS instead to fix linking of
test_verifier.

3. Introduced commit d83c3ba0b9 ("selftests: Fix selftests build to
just build, not run tests").

  Reordering the Makefile allows us to remove the 'all' target.

Tested both:
    selftests/bpf$ make
and
    selftests$ make TARGETS=bpf
on Ubuntu 16.04.2.

Signed-off-by: Zi Shen Lim <zlim.lnx@gmail.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Tested-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Zi Shen Lim 2017-03-19 23:03:14 -07:00 committed by David S. Miller
parent 4ef1b28694
commit e8f1f34a34
1 changed files with 10 additions and 9 deletions
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19
tools/testing/selftests/bpf/Makefile
View file

@ -1,22 +1,23 @@
LIBDIR := ../../../lib
BPFOBJ := $(LIBDIR)/bpf/bpf.o
BPFDIR := $(LIBDIR)/bpf
CFLAGS += -Wall -O2 -lcap -I../../../include/uapi -I$(LIBDIR) $(BPFOBJ)
CFLAGS += -Wall -O2 -I../../../include/uapi -I$(LIBDIR)
LDLIBS += -lcap
TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map
TEST_PROGS := test_kmod.sh
all: $(TEST_GEN_PROGS)
include ../lib.mk
.PHONY: all clean force
BPFOBJ := $(OUTPUT)/bpf.o
$(TEST_GEN_PROGS): $(BPFOBJ)
.PHONY: force
# force a rebuild of BPFOBJ when its dependencies are updated
force:
$(BPFOBJ): force
$(MAKE) -C $(dir $(BPFOBJ))
$(test_objs): $(BPFOBJ)
include ../lib.mk
$(MAKE) -C $(BPFDIR) OUTPUT=$(OUTPUT)/