diff options
| author | Jiri Olsa <jolsa@kernel.org> | 2025-09-16 23:53:01 +0200 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2025-09-24 02:25:06 -0700 |
| commit | 3d237467a444d4f23b78ac72210fe5860cd7aed8 (patch) | |
| tree | a5ea679e58f4e77971961e070f8bfe61787a33bb /tools/testing/selftests/bpf/progs/kprobe_write_ctx.c | |
| parent | 1b881ee294b2d8929a77b0e489047765d55f0191 (diff) | |
selftests/bpf: Add kprobe multi write ctx attach test
Adding test to check we can't attach kprobe multi program
that writes to the context.
It's x86_64 specific test.
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/r/20250916215301.664963-7-jolsa@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/testing/selftests/bpf/progs/kprobe_write_ctx.c')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/kprobe_write_ctx.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/kprobe_write_ctx.c b/tools/testing/selftests/bpf/progs/kprobe_write_ctx.c index 4621a5bef4e2..f77aef0474d3 100644 --- a/tools/testing/selftests/bpf/progs/kprobe_write_ctx.c +++ b/tools/testing/selftests/bpf/progs/kprobe_write_ctx.c @@ -12,4 +12,11 @@ int kprobe_write_ctx(struct pt_regs *ctx) ctx->ax = 0; return 0; } + +SEC("kprobe.multi") +int kprobe_multi_write_ctx(struct pt_regs *ctx) +{ + ctx->ax = 0; + return 0; +} #endif |