selftests/bpf: validate STACK_ZERO is preserved on subreg spill

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Add tests validating that STACK_ZERO slots are preserved when slot is
partially overwritten with subregister spill.

Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20231205184248.1502704-6-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Andrii Nakryiko 2023-12-05 10:42:43 -08:00 • committed by Alexei Starovoitov

parent eaf18febd6

commit b33ceb6a3d

1 changed files with 40 additions and 0 deletions

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

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