Commit 9c8827d7 authored by Tao Chen's avatar Tao Chen Committed by Andrii Nakryiko
Browse files

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: default avatarTao Chen <chen.dylane@linux.dev>
Signed-off-by: default avatarAndrii Nakryiko <andrii@kernel.org>
Acked-by: default avatarQuentin Monnet <qmo@kernel.org>
Link: https://lore.kernel.org/bpf/20250603154309.3063644-3-chen.dylane@linux.dev
parent 25a0d04d

tools/bpf/bpftool/link.c

+3 −0
Original line number Diff line number Diff line
@@ -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);