On Mon, 2024-03-04 at 13:02 +0000, Haojian Zhuang wrote: [...] > Yes, I'm referring to bpf_user_ringbuf_drain() helper function. > > Yes, I should extend bpf/progs/user_ringbuf_success.c. And it could be > loaded by bpf/prog_tests/user_ringbuf.c. Before doing so, could you please share example you have in mind? > But I failed to find the binary of user_ringbuf.c after bpf test cases > built. And there're no binaries for the test cases in bpf/prog_tests > directory. How to make use of these test cases? I failed to find > documents on it. Could you help to share any tips to me? Thanks The binary that runs tests is called "test_progs" and is compiled using target "test_progs" under "tools/testing/selftests/bpf" directory. Specific tests could be run using commands like: - "./test_progs -a user_ringbuf" (to run all subtests in the group); - "./test_progs -a user_ringbuf/test_user_ringbuf_loop" (to run one subtest from the group). I have an old writeup on setting up local testing environment, if you need it I can update and share it.
