From 9c8827d773bf49e173d15ec131ba576204e16104 Mon Sep 17 00:00:00 2001 From: Tao Chen Date: Tue, 3 Jun 2025 23:43:09 +0800 Subject: [PATCH] bpftool: Display cookie for raw_tp link probe Display cookie for raw_tp link probe, in plain mode: #bpftool link 22: raw_tracepoint prog 14 tp 'sys_enter' cookie 23925373020405760 pids test_progs(176) And in json mode: #bpftool link -j | jq [ { "id": 47, "type": "raw_tracepoint", "prog_id": 79, "tp_name": "sys_enter", "cookie": 23925373020405760, "pids": [ { "pid": 274, "comm": "test_progs" } ] } ] Signed-off-by: Tao Chen Signed-off-by: Andrii Nakryiko Acked-by: Quentin Monnet Link: https://lore.kernel.org/bpf/20250603154309.3063644-3-chen.dylane@linux.dev --- tools/bpf/bpftool/link.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/tools/bpf/bpftool/link.c b/tools/bpf/bpftool/link.c index 3535afc80a499..cb67ce4eba241 100644 --- a/tools/bpf/bpftool/link.c +++ b/tools/bpf/bpftool/link.c @@ -485,6 +485,7 @@ static int show_link_close_json(int fd, struct bpf_link_info *info) case BPF_LINK_TYPE_RAW_TRACEPOINT: jsonw_string_field(json_wtr, "tp_name", u64_to_ptr(info->raw_tracepoint.tp_name)); + jsonw_uint_field(json_wtr, "cookie", info->raw_tracepoint.cookie); break; case BPF_LINK_TYPE_TRACING: err = get_prog_info(info->prog_id, &prog_info); @@ -879,6 +880,8 @@ static int show_link_close_plain(int fd, struct bpf_link_info *info) case BPF_LINK_TYPE_RAW_TRACEPOINT: printf("\n\ttp '%s' ", (const char *)u64_to_ptr(info->raw_tracepoint.tp_name)); + if (info->raw_tracepoint.cookie) + printf("cookie %llu ", info->raw_tracepoint.cookie); break; case BPF_LINK_TYPE_TRACING: err = get_prog_info(info->prog_id, &prog_info); -- 2.47.2