selftests/bpf: Add custom SEC() handling selftest

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Add a selftest validating various aspects of libbpf's handling of custom
SEC() handlers. It also demonstrates how libraries can ensure very early
callbacks registration and unregistration using
__attribute__((constructor))/__attribute__((destructor)) functions.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Tested-by: Alan Maguire <alan.maguire@oracle.com>
Reviewed-by: Alan Maguire <alan.maguire@oracle.com>
Link: https://lore.kernel.org/bpf/20220305010129.1549719-4-andrii@kernel.org

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Andrii Nakryiko 2022-03-04 17:01:29 -08:00 • committed by Alexei Starovoitov

parent 697f104db8

commit aa963bcb0a

2 changed files with 239 additions and 0 deletions

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176

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

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63

tools/testing/selftests/bpf/progs/test_custom_sec_handlers.c

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