diff options
| author | Emil Tsalapatis <emil@etsalapatis.com> | 2026-02-03 13:04:22 -0500 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2026-02-03 10:41:16 -0800 |
| commit | 954fa97e215ea8fb1fe70d117d25875f3d3938ea (patch) | |
| tree | 473481b635be91964a0bec6777d676145c689cc5 | |
| parent | 63328bb23f2693fe36e8bcdb972c6040e84d16e4 (diff) | |
selftests/bpf: Add selftests for bpf_stream_print_stack
Add selftests for the new bpf_stream_print_stack kfunc.
Signed-off-by: Emil Tsalapatis <emil@etsalapatis.com>
Acked-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/r/20260203180424.14057-3-emil@etsalapatis.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
| -rw-r--r-- | tools/testing/selftests/bpf/progs/stream.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/stream.c b/tools/testing/selftests/bpf/progs/stream.c index 4a5bd852f10c..f63b378de090 100644 --- a/tools/testing/selftests/bpf/progs/stream.c +++ b/tools/testing/selftests/bpf/progs/stream.c @@ -234,4 +234,25 @@ int stream_arena_callback_fault(void *ctx) return 0; } +SEC("syscall") +__arch_x86_64 +__arch_arm64 +__success __retval(0) +__stderr("CPU: {{[0-9]+}} UID: 0 PID: {{[0-9]+}} Comm: {{.*}}") +__stderr("Call trace:\n" +"{{([a-zA-Z_][a-zA-Z0-9_]*\\+0x[0-9a-fA-F]+/0x[0-9a-fA-F]+\n" +"|[ \t]+[^\n]+\n)*}}") +int stream_print_stack_kfunc(void *ctx) +{ + return bpf_stream_print_stack(BPF_STDERR); +} + +SEC("syscall") +__success __retval(-2) +int stream_print_stack_invalid_id(void *ctx) +{ + /* Try to pass an invalid stream ID. */ + return bpf_stream_print_stack((enum bpf_stream_id)0xbadcafe); +} + char _license[] SEC("license") = "GPL"; |