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| author | Andrii Nakryiko <andrii@kernel.org> | 2023-12-11 09:41:31 -0800 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2023-12-11 19:16:32 -0800 |
| commit | e72c1ccfd449598f7eda10d3bb7441d501ddcfc3 (patch) | |
| tree | 7a2c8fc5c837b5a8a74a5360c5129adf9a1a9b0f /kernel/bpf/log.c | |
| parent | 2ebe81c814355d000fe49d9c4213983844dcb32b (diff) | |
selftests/bpf: validate eliminated global subprog is not freplaceable
Add selftest that establishes dead code-eliminated valid global subprog
(global_dead) and makes sure that it's not possible to freplace it, as
it's effectively not there. This test will fail with unexpected success
before 2afae08c9dcb ("bpf: Validate global subprogs lazily").
v2->v3:
- add missing err assignment (Alan);
- undo unnecessary signature changes in verifier_global_subprogs.c (Eduard);
v1->v2:
- don't rely on assembly output in verifier log, which changes between
compiler versions (CI).
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Reviewed-by: Alan Maguire <alan.maguire@oracle.com>
Suggested-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/r/20231211174131.2324306-1-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'kernel/bpf/log.c')
0 files changed, 0 insertions, 0 deletions