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linux_old1/tools/testing/selftests/bpf/Makefile

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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>
2017-02-12 06:20:23 +08:00
LIBDIR := ../../../lib
selftests/bpf: fix broken build, take 2 Merge of 'linux-kselftest-4.11-rc1': 1. Partially removed use of 'test_objs' target, breaking force rebuild of BPFOBJ, introduced in commit d498f8719a09 ("bpf: Rebuild bpf.o for any dependency update"). Update target so dependency on BPFOBJ is restored. 2. Introduced commit 2047f1d8ba28 ("selftests: Fix the .c linking rule") which fixes order of LDLIBS. Commit d02d8986a768 ("bpf: Always test unprivileged programs") added libcap dependency into CFLAGS. Use LDLIBS instead to fix linking of test_verifier. 3. Introduced commit d83c3ba0b926 ("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>
2017-03-20 14:03:14 +08:00
BPFDIR := $(LIBDIR)/bpf
bpf: add various verifier test cases for self-tests Add a couple of test cases, for example, probing for xadd on a spilled pointer to packet and map_value_adj register, various other map_value_adj tests including the unaligned load/store, and trying out pointer arithmetic on map_value_adj register itself. For the unaligned load/store, we need to figure out whether the architecture has efficient unaligned access and need to mark affected tests accordingly. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-31 08:24:04 +08:00
APIDIR := ../../../include/uapi
GENDIR := ../../../../include/generated
GENHDR := $(GENDIR)/autoconf.h
bpf: Rebuild bpf.o for any dependency update This is needed to force a rebuild of bpf.o when one of its dependencies (e.g. uapi/linux/bpf.h) is updated. Add a phony target. Signed-off-by: Mickaël Salaün <mic@digikod.net> Cc: Alexei Starovoitov <ast@fb.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: David S. Miller <davem@davemloft.net> Cc: Wang Nan <wangnan0@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-12 06:20:23 +08:00
bpf: add various verifier test cases for self-tests Add a couple of test cases, for example, probing for xadd on a spilled pointer to packet and map_value_adj register, various other map_value_adj tests including the unaligned load/store, and trying out pointer arithmetic on map_value_adj register itself. For the unaligned load/store, we need to figure out whether the architecture has efficient unaligned access and need to mark affected tests accordingly. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-31 08:24:04 +08:00
ifneq ($(wildcard $(GENHDR)),)
GENFLAGS := -DHAVE_GENHDR
endif
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net Mostly simple cases of overlapping changes (adding code nearby, a function whose name changes, for example). Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-06 22:25:07 +08:00
CFLAGS += -Wall -O2 -I$(APIDIR) -I$(LIBDIR) -I$(GENDIR) $(GENFLAGS) -I../../../include
selftests/bpf: add a test for overlapping packet range checks add simple C test case for llvm and verifier range check fix from commit b1977682a385 ("bpf: improve verifier packet range checks") Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-31 12:45:41 +08:00
LDLIBS += -lcap -lelf
bpf: add initial suite for selftests Add a start of a test suite for kernel selftests. This moves test_verifier and test_maps over to tools/testing/selftests/bpf/ along with various code improvements and also adds a script for invoking test_bpf module. The test suite can simply be run via selftest framework, f.e.: # cd tools/testing/selftests/bpf/ # make # make run_tests Both test_verifier and test_maps were kind of misplaced in samples/bpf/ directory and we were looking into adding them to selftests for a while now, so it can be picked up by kbuild bot et al and hopefully also get more exposure and thus new test case additions. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-17 20:28:36 +08:00
selftests/bpf: add a test for overlapping packet range checks add simple C test case for llvm and verifier range check fix from commit b1977682a385 ("bpf: improve verifier packet range checks") Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-31 12:45:41 +08:00
TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test_progs
selftests/bpf: add a test case to check verifier pointer arithmetic With clang/llvm 4.0+, the test case is able to generate the following pattern: .... 440: (b7) r1 = 15 441: (05) goto pc+73 515: (79) r6 = *(u64 *)(r10 -152) 516: (bf) r7 = r10 517: (07) r7 += -112 518: (bf) r2 = r7 519: (0f) r2 += r1 520: (71) r1 = *(u8 *)(r8 +0) 521: (73) *(u8 *)(r2 +45) = r1 .... commit 332270fdc8b6 ("bpf: enhance verifier to understand stack pointer arithmetic") improved verifier to handle such a pattern. This patch adds a C test case to actually generate such a pattern. A dummy tracepoint interface is used to load the program into the kernel. Signed-off-by: Yonghong Song <yhs@fb.com> Acked-by: Martin KaFai Lau <kafai@fb.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-03 10:58:14 +08:00
TEST_GEN_FILES = test_pkt_access.o test_xdp.o test_l4lb.o test_tcp_estats.o
bpf: add initial suite for selftests Add a start of a test suite for kernel selftests. This moves test_verifier and test_maps over to tools/testing/selftests/bpf/ along with various code improvements and also adds a script for invoking test_bpf module. The test suite can simply be run via selftest framework, f.e.: # cd tools/testing/selftests/bpf/ # make # make run_tests Both test_verifier and test_maps were kind of misplaced in samples/bpf/ directory and we were looking into adding them to selftests for a while now, so it can be picked up by kbuild bot et al and hopefully also get more exposure and thus new test case additions. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-17 20:28:36 +08:00
selftests: remove duplicated all and clean target Currently, kselftest use TEST_PROGS, TEST_PROGS_EXTENDED, TEST_FILES to indicate the test program, extended test program and test files. It is easy to understand the purpose of these files. But mix of compiled and uncompiled files lead to duplicated "all" and "clean" targets. In order to remove the duplicated targets, introduce TEST_GEN_PROGS, TEST_GEN_PROGS_EXTENDED, TEST_GEN_FILES to indicate the compiled objects. Also, the later patch will make use of TEST_GEN_XXX to redirect these files to output directory indicated by KBUILD_OUTPUT or O. And add this changes to "Contributing new tests(details)" of Documentation/kselftest.txt. Signed-off-by: Bamvor Jian Zhang <bamvor.zhangjian@linaro.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2016-11-29 19:55:47 +08:00
TEST_PROGS := test_kmod.sh
bpf: add initial suite for selftests Add a start of a test suite for kernel selftests. This moves test_verifier and test_maps over to tools/testing/selftests/bpf/ along with various code improvements and also adds a script for invoking test_bpf module. The test suite can simply be run via selftest framework, f.e.: # cd tools/testing/selftests/bpf/ # make # make run_tests Both test_verifier and test_maps were kind of misplaced in samples/bpf/ directory and we were looking into adding them to selftests for a while now, so it can be picked up by kbuild bot et al and hopefully also get more exposure and thus new test case additions. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-17 20:28:36 +08:00
selftests/bpf: fix broken build, take 2 Merge of 'linux-kselftest-4.11-rc1': 1. Partially removed use of 'test_objs' target, breaking force rebuild of BPFOBJ, introduced in commit d498f8719a09 ("bpf: Rebuild bpf.o for any dependency update"). Update target so dependency on BPFOBJ is restored. 2. Introduced commit 2047f1d8ba28 ("selftests: Fix the .c linking rule") which fixes order of LDLIBS. Commit d02d8986a768 ("bpf: Always test unprivileged programs") added libcap dependency into CFLAGS. Use LDLIBS instead to fix linking of test_verifier. 3. Introduced commit d83c3ba0b926 ("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>
2017-03-20 14:03:14 +08:00
include ../lib.mk
selftests/bpf: add a test for overlapping packet range checks add simple C test case for llvm and verifier range check fix from commit b1977682a385 ("bpf: improve verifier packet range checks") Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-31 12:45:41 +08:00
BPFOBJ := $(OUTPUT)/libbpf.a
selftests/bpf: fix broken build, take 2 Merge of 'linux-kselftest-4.11-rc1': 1. Partially removed use of 'test_objs' target, breaking force rebuild of BPFOBJ, introduced in commit d498f8719a09 ("bpf: Rebuild bpf.o for any dependency update"). Update target so dependency on BPFOBJ is restored. 2. Introduced commit 2047f1d8ba28 ("selftests: Fix the .c linking rule") which fixes order of LDLIBS. Commit d02d8986a768 ("bpf: Always test unprivileged programs") added libcap dependency into CFLAGS. Use LDLIBS instead to fix linking of test_verifier. 3. Introduced commit d83c3ba0b926 ("selftests: Fix selftests build to just build, not run tests"). Reordering the Makefile allows us to remove the 'all' target. Tested both: selftests/bpf$ 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>
2017-03-20 14:03:14 +08:00
$(TEST_GEN_PROGS): $(BPFOBJ)
selftests/bpf: fix broken build Recent merge of 'linux-kselftest-4.11-rc1' tree broke bpf test build. None of the tests were building and test_verifier.c had tons of compiler errors. Fix it and add #ifdef CAP_IS_SUPPORTED to support old versions of libcap. Tested on centos 6.8 and 7 Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Tested-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-11 14:05:55 +08:00
selftests/bpf: fix broken build, take 2 Merge of 'linux-kselftest-4.11-rc1': 1. Partially removed use of 'test_objs' target, breaking force rebuild of BPFOBJ, introduced in commit d498f8719a09 ("bpf: Rebuild bpf.o for any dependency update"). Update target so dependency on BPFOBJ is restored. 2. Introduced commit 2047f1d8ba28 ("selftests: Fix the .c linking rule") which fixes order of LDLIBS. Commit d02d8986a768 ("bpf: Always test unprivileged programs") added libcap dependency into CFLAGS. Use LDLIBS instead to fix linking of test_verifier. 3. Introduced commit d83c3ba0b926 ("selftests: Fix selftests build to just build, not run tests"). Reordering the Makefile allows us to remove the 'all' target. Tested both: selftests/bpf$ 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>
2017-03-20 14:03:14 +08:00
.PHONY: force
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>
2017-02-12 06:20:23 +08:00
# force a rebuild of BPFOBJ when its dependencies are updated
force:
$(BPFOBJ): force
selftests/bpf: fix broken build, take 2 Merge of 'linux-kselftest-4.11-rc1': 1. Partially removed use of 'test_objs' target, breaking force rebuild of BPFOBJ, introduced in commit d498f8719a09 ("bpf: Rebuild bpf.o for any dependency update"). Update target so dependency on BPFOBJ is restored. 2. Introduced commit 2047f1d8ba28 ("selftests: Fix the .c linking rule") which fixes order of LDLIBS. Commit d02d8986a768 ("bpf: Always test unprivileged programs") added libcap dependency into CFLAGS. Use LDLIBS instead to fix linking of test_verifier. 3. Introduced commit d83c3ba0b926 ("selftests: Fix selftests build to just build, not run tests"). Reordering the Makefile allows us to remove the 'all' target. Tested both: selftests/bpf$ 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>
2017-03-20 14:03:14 +08:00
$(MAKE) -C $(BPFDIR) OUTPUT=$(OUTPUT)/
selftests/bpf: add a test for overlapping packet range checks add simple C test case for llvm and verifier range check fix from commit b1977682a385 ("bpf: improve verifier packet range checks") Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-31 12:45:41 +08:00
CLANG ?= clang
%.o: %.c
selftests/bpf: get rid of -D__x86_64__ -D__x86_64__ workaround was used to make /usr/include/features.h to follow expected path through the system include headers. This is not portable. Instead define dummy stubs.h which is used by 'clang -target bpf' Fixes: 6882804c916b ("selftests/bpf: add a test for overlapping packet range checks") Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-03 12:14:43 +08:00
$(CLANG) -I. -I../../../include/uapi -I../../../../samples/bpf/ \
-Wno-compare-distinct-pointer-types \
selftests/bpf: add a test for overlapping packet range checks add simple C test case for llvm and verifier range check fix from commit b1977682a385 ("bpf: improve verifier packet range checks") Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-31 12:45:41 +08:00
-O2 -target bpf -c $< -o $@