selftests/bpf: test for malformed BPF_CORE_TYPE_ID_LOCAL relocation

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Check that verifier rejects BPF program containing relocation
pointing to non-existent BTF type.

To force relocation resolution on kernel side test case uses
bpf_attr->core_relos field. This field is not exposed by libbpf,
so directly do BPF system call in the test.

Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20240822080124.2995724-3-eddyz87@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Eduard Zingerman 2024-08-22 01:01:24 -07:00 • committed by Alexei Starovoitov

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commit 110bbd3a2e

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

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