kernel/tools/testing/selftests/bpf/prog_tests/map_lock.c, branch linux-6.2.y

selftests/bpf: Store BPF object files with .bpf.o extension

2022-09-02T13:55:37Z

BPF object files are, in a way, the final artifact produced as part of the ahead-of-time compilation process. That makes them somewhat special compared to "regular" object files, which are a intermediate build artifacts that can typically be removed safely. As such, it can make sense to name them differently to make it easier to spot this difference at a glance. Among others, libbpf-bootstrap [0] has established the extension .bpf.o for BPF object files. It seems reasonable to follow this example and establish the same denomination for selftest build artifacts. To that end, this change adjusts the corresponding part of the build system and the test programs loading BPF object files to work with .bpf.o files. [0] https://github.com/libbpf/libbpf-bootstrap Suggested-by: Andrii Nakryiko Signed-off-by: Daniel Müller Signed-off-by: Daniel Borkmann Link: https://lore.kernel.org/bpf/20220901222253.1199242-1-deso@posteo.net

selftests/bpf: Migrate from bpf_prog_test_run

2022-02-03T06:31:18Z

bpf_prog_test_run is being deprecated in favor of the OPTS-based bpf_prog_test_run_opts. We end up unable to use CHECK in most cases, so replace usages with ASSERT_* calls. Signed-off-by: Delyan Kratunov Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20220202235423.1097270-2-delyank@fb.com

selftests/bpf: Use explicit bpf_prog_test_load() calls everywhere

2021-11-07T16:34:23Z

-Dbpf_prog_load_deprecated=bpf_prog_test_load trick is both ugly and breaks when deprecation goes into effect due to macro magic. Convert all the uses to explicit bpf_prog_test_load() calls which avoid deprecation errors and makes everything less magical. Signed-off-by: Andrii Nakryiko Signed-off-by: Alexei Starovoitov Acked-by: Dave Marchevsky Link: https://lore.kernel.org/bpf/20211103220845.2676888-12-andrii@kernel.org

selftests/bpf: Move existing common networking parts into network_helpers

2020-05-08T22:48:20Z

1. Move pkt_v4 and pkt_v6 into network_helpers and adjust the users. 2. Copy-paste spin_lock_thread into two tests that use it. Signed-off-by: Stanislav Fomichev Signed-off-by: Daniel Borkmann Acked-by: Martin KaFai Lau Acked-by: Andrey Ignatov Link: https://lore.kernel.org/bpf/20200508174611.228805-3-sdf@google.com

selftests/bpf: test_progs: remove asserts from subtests

2019-08-27T22:35:40Z

Otherwise they can bring the whole process down. Cc: Andrii Nakryiko Signed-off-by: Stanislav Fomichev Signed-off-by: Daniel Borkmann

selftests/bpf: test_progs: remove global fail/success counts

2019-08-27T22:35:40Z

Now that we have a global per-test/per-environment state, there is no longer need to have global fail/success counters (and there is no need to save/get the diff before/after the test). Introduce CHECK_FAIL macro (suggested by Andrii) and covert existing tests to it. CHECK_FAIL uses new test__fail() to record the failure. Cc: Andrii Nakryiko Signed-off-by: Stanislav Fomichev Signed-off-by: Daniel Borkmann

selftests/bpf: fix segfault of test_progs when prog loading failed

2019-03-12T20:55:54Z

The test_progs subtests, test_spin_lock() and test_map_lock(), requires BTF present to run successfully. Currently, when BTF failed to load, test_progs will segfault, $ ./test_progs ... 12: (bf) r1 = r8 13: (85) call bpf_spin_lock#93 map 'hash_map' has to have BTF in order to use bpf_spin_lock libbpf: -- END LOG -- libbpf: failed to load program 'map_lock_demo' libbpf: failed to load object './test_map_lock.o' test_map_lock:bpf_prog_load errno 13 Segmentation fault The segfault is caused by uninitialized variable "obj", which is used in bpf_object__close(obj), when bpf prog failed to load. Initializing variable "obj" to NULL in two occasions fixed the problem. $ ./test_progs ... Summary: 219 PASSED, 2 FAILED Fixes: b4d4556c3266 ("selftests/bpf: add bpf_spin_lock verifier tests") Fixes: ba72a7b4badb ("selftests/bpf: test for BPF_F_LOCK") Reported-by: Daniel Borkmann Signed-off-by: Yonghong Song Acked-by: Song Liu Signed-off-by: Daniel Borkmann

selftests: bpf: break up test_progs - spinlock

2019-03-02T19:10:40Z

Move spinlock prog tests into separate files. Signed-off-by: Stanislav Fomichev Signed-off-by: Alexei Starovoitov