selftests/bpf: Add re-attach test to fentry_test

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Adding the test to re-attach (detach/attach again) tracing
fentry programs, plus check that already linked program can't
be attached again.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210414195147.1624932-4-jolsa@kernel.org

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Jiri Olsa 2021-04-14 21:51:43 +02:00 • committed by Alexei Starovoitov

parent f3a9507554

commit 56dda5a48f

1 changed files with 37 additions and 15 deletions

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tools/testing/selftests/bpf/prog_tests/fentry_test.c

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