selftests/bpf: add more cases for __arg_trusted __arg_nullable args

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Add extra layer of global functions to ensure that passing around
(trusted) PTR_TO_BTF_ID_OR_NULL registers works as expected. We also
extend trusted_task_arg_nullable subtest to check three possible valid
argumements: known NULL, known non-NULL, and maybe NULL cases.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20240202190529.2374377-3-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Andrii Nakryiko 2024-02-02 11:05:28 -08:00 • committed by Alexei Starovoitov

parent 8f13c34087

commit e2e70535dd

1 changed files with 29 additions and 3 deletions

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

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