diff options
| author | Tao Chen <chen.dylane@linux.dev> | 2025-06-03 23:43:07 +0800 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2025-06-05 11:44:52 -0700 |
| commit | 2fe1c59347369fa856ae259e2fac3c8c8dd9d335 (patch) | |
| tree | 70a43181fdcfd4b4fc254d5cbee31116b2e7c2ec | |
| parent | 7fdaba912981e6fe7585517ccf3b5da59e17592e (diff) | |
bpf: Add cookie to raw_tp bpf_link_info
After commit 68ca5d4eebb8 ("bpf: support BPF cookie in raw tracepoint
(raw_tp, tp_btf) programs"), we can show the cookie in bpf_link_info
like kprobe etc.
Signed-off-by: Tao Chen <chen.dylane@linux.dev>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/bpf/20250603154309.3063644-1-chen.dylane@linux.dev
| -rw-r--r-- | include/uapi/linux/bpf.h | 2 | ||||
| -rw-r--r-- | kernel/bpf/syscall.c | 1 | ||||
| -rw-r--r-- | tools/include/uapi/linux/bpf.h | 2 |
3 files changed, 5 insertions, 0 deletions
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h index 85180e4aaa5a..f1160ebbf526 100644 --- a/include/uapi/linux/bpf.h +++ b/include/uapi/linux/bpf.h @@ -6651,6 +6651,8 @@ struct bpf_link_info { struct { __aligned_u64 tp_name; /* in/out: tp_name buffer ptr */ __u32 tp_name_len; /* in/out: tp_name buffer len */ + __u32 :32; + __u64 cookie; } raw_tracepoint; struct { __u32 attach_type; diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c index dd5304c6ac3c..89d027cd7ca0 100644 --- a/kernel/bpf/syscall.c +++ b/kernel/bpf/syscall.c @@ -3688,6 +3688,7 @@ static int bpf_raw_tp_link_fill_link_info(const struct bpf_link *link, return -EINVAL; info->raw_tracepoint.tp_name_len = tp_len + 1; + info->raw_tracepoint.cookie = raw_tp_link->cookie; if (!ubuf) return 0; diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h index 85180e4aaa5a..f1160ebbf526 100644 --- a/tools/include/uapi/linux/bpf.h +++ b/tools/include/uapi/linux/bpf.h @@ -6651,6 +6651,8 @@ struct bpf_link_info { struct { __aligned_u64 tp_name; /* in/out: tp_name buffer ptr */ __u32 tp_name_len; /* in/out: tp_name buffer len */ + __u32 :32; + __u64 cookie; } raw_tracepoint; struct { __u32 attach_type; |