selftests/bpf: Add CO-RE relocs selftest relying on kernel module BTF

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Add a self-tests validating libbpf is able to perform CO-RE relocations
against the type defined in kernel module BTF. if bpf_testmod.o is not
supported by the kernel (e.g., due to version mismatch), skip tests, instead
of failing.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20201203204634.1325171-9-andrii@kernel.org

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Andrii Nakryiko 2020-12-03 12:46:28 -08:00 • committed by Alexei Starovoitov

parent 5ed31472b9

commit 6bcd39d366

3 changed files with 151 additions and 11 deletions

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79

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

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17

tools/testing/selftests/bpf/progs/core_reloc_types.h

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66

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

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