selftests/bpf: Add tests for BPF exceptions

Add selftests to cover success and failure cases of API usage, runtime behavior and invariants that need to be maintained for implementation correctness. Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://lore.kernel.org/r/20230912233214.1518551-18-memxor@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
mariux64 · Sep 16, 2023 · d2a9371 · d2a9371
1 parent d6ea068
commit d2a9371
Show file tree

Hide file tree

Showing 7 changed files with 1,332 additions and 0 deletions.
diff --git a/tools/testing/selftests/bpf/DENYLIST.aarch64 b/tools/testing/selftests/bpf/DENYLIST.aarch64
@@ -1,5 +1,6 @@
 bpf_cookie/multi_kprobe_attach_api               # kprobe_multi_link_api_subtest:FAIL:fentry_raw_skel_load unexpected error: -3
 bpf_cookie/multi_kprobe_link_api                 # kprobe_multi_link_api_subtest:FAIL:fentry_raw_skel_load unexpected error: -3
+exceptions					 # JIT does not support calling kfunc bpf_throw: -524
 fexit_sleep                                      # The test never returns. The remaining tests cannot start.
 kprobe_multi_bench_attach                        # bpf_program__attach_kprobe_multi_opts unexpected error: -95
 kprobe_multi_test/attach_api_addrs               # bpf_program__attach_kprobe_multi_opts unexpected error: -95

diff --git a/tools/testing/selftests/bpf/DENYLIST.s390x b/tools/testing/selftests/bpf/DENYLIST.s390x
@@ -6,6 +6,7 @@ bpf_loop                                 # attaches to __x64_sys_nanosleep
 cgrp_local_storage                       # prog_attach unexpected error: -524                                          (trampoline)
 dynptr/test_dynptr_skb_data
 dynptr/test_skb_readonly
+exceptions				 # JIT does not support calling kfunc bpf_throw				       (exceptions)
 fexit_sleep                              # fexit_skel_load fexit skeleton failed                                       (trampoline)
 get_stack_raw_tp                         # user_stack corrupted user stack                                             (no backchain userspace)
 iters/testmod_seq*                       # s390x doesn't support kfuncs in modules yet