diff options
| author | Jiri Olsa <jolsa@kernel.org> | 2023-09-20 23:31:43 +0200 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2023-09-25 16:37:44 -0700 |
| commit | 01e4ae474e39b855f911caec355bb79e722562b3 (patch) | |
| tree | adace8f603d62e1bb0869bbdc43b6c929ee52f2b /tools/testing/selftests/bpf/bpf_testmod/bpf_testmod_kfunc.h | |
| parent | b563b9bae8c3a6583e34820856dc6eafc2239aaf (diff) | |
selftests/bpf: Add test for missed counts of perf event link kprobe
Adding test that puts kprobe on bpf_fentry_test1 that calls
bpf_kfunc_common_test kfunc, which has also kprobe on.
The latter won't get triggered due to kprobe recursion check
and kprobe missed counter is incremented.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Hou Tao <houtao1@huawei.com>
Link: https://lore.kernel.org/bpf/20230920213145.1941596-8-jolsa@kernel.org
Diffstat (limited to 'tools/testing/selftests/bpf/bpf_testmod/bpf_testmod_kfunc.h')
| -rw-r--r-- | tools/testing/selftests/bpf/bpf_testmod/bpf_testmod_kfunc.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod_kfunc.h b/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod_kfunc.h index f5c5b1375c24..7c664dd61059 100644 --- a/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod_kfunc.h +++ b/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod_kfunc.h @@ -104,4 +104,6 @@ void bpf_kfunc_call_test_fail1(struct prog_test_fail1 *p); void bpf_kfunc_call_test_fail2(struct prog_test_fail2 *p); void bpf_kfunc_call_test_fail3(struct prog_test_fail3 *p); void bpf_kfunc_call_test_mem_len_fail1(void *mem, int len); + +void bpf_kfunc_common_test(void) __ksym; #endif /* _BPF_TESTMOD_KFUNC_H */ |