diff options
| author | Jiri Olsa <jolsa@kernel.org> | 2023-09-07 22:06:52 +0200 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2023-09-09 01:53:10 +0200 |
| commit | 7182e56411b9a8b76797ed7b6095fc84be76dfb0 (patch) | |
| tree | 234f2eef597e9207a3d90bb6fa6dfb9ad10062ba /tools/testing/selftests/bpf/progs/kprobe_multi_override.c | |
| parent | bpf: Add override check to kprobe multi link attach (diff) | |
| download | linux-7182e56411b9a8b76797ed7b6095fc84be76dfb0.tar.xz linux-7182e56411b9a8b76797ed7b6095fc84be76dfb0.zip | |
selftests/bpf: Add kprobe_multi override test
Adding test that tries to attach program with bpf_override_return
helper to function not within error injection list.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20230907200652.926951-2-jolsa@kernel.org
Diffstat (limited to 'tools/testing/selftests/bpf/progs/kprobe_multi_override.c')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/kprobe_multi_override.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/kprobe_multi_override.c b/tools/testing/selftests/bpf/progs/kprobe_multi_override.c new file mode 100644 index 000000000000..28f8487c9059 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/kprobe_multi_override.c @@ -0,0 +1,13 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <linux/bpf.h> +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_tracing.h> + +char _license[] SEC("license") = "GPL"; + +SEC("kprobe.multi") +int test_override(struct pt_regs *ctx) +{ + bpf_override_return(ctx, 123); + return 0; +} |