selftests/bpf: Tests for btf_dedup_resolve_fwds

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Tests to verify the following behavior of `btf_dedup_resolve_fwds`:
- remapping for struct forward declarations;
- remapping for union forward declarations;
- no remapping if forward declaration kind does not match similarly
  named struct or union declaration;
- no remapping if forward declaration name is ambiguous;
- base ids are considered for fwd resolution in split btf scenario.

Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Reviewed-by: Alan Maguire <alan.maguire@oracle.com>
Link: https://lore.kernel.org/bpf/20221109142611.879983-4-eddyz87@gmail.com

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Eduard Zingerman 2022-11-09 16:26:11 +02:00 • committed by Andrii Nakryiko

parent 082108fd69

commit 99e18fad5f

2 changed files with 206 additions and 15 deletions

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176

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

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45

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

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