diff options
| author | Tao Chen <chen.dylane@linux.dev> | 2025-06-07 00:58:16 +0800 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2025-06-09 16:45:17 -0700 |
| commit | ad954cbe084935b42e50d665fcbf2f8ac1df8c7e (patch) | |
| tree | b914530bdf759ee924d274b8572ec16f133bf064 | |
| parent | d77efc0ef5b0adb0de3c15f5c9d33ea6d60bd449 (diff) | |
bpftool: Display cookie for tracing link probe
Display cookie for tracing link probe, in plain mode:
#bpftool link
5: tracing prog 34
prog_type tracing attach_type trace_fentry
target_obj_id 1 target_btf_id 60355
cookie 4503599627370496
pids test_progs(176)
And in json mode:
#bpftool link -j | jq
{
"id": 5,
"type": "tracing",
"prog_id": 34,
"prog_type": "tracing",
"attach_type": "trace_fentry",
"target_obj_id": 1,
"target_btf_id": 60355,
"cookie": 4503599627370496,
"pids": [
{
"pid": 176,
"comm": "test_progs"
}
]
}
Signed-off-by: Tao Chen <chen.dylane@linux.dev>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20250606165818.3394397-3-chen.dylane@linux.dev
| -rw-r--r-- | tools/bpf/bpftool/link.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/bpf/bpftool/link.c b/tools/bpf/bpftool/link.c index cb67ce4eba24..03513ffffb79 100644 --- a/tools/bpf/bpftool/link.c +++ b/tools/bpf/bpftool/link.c @@ -503,6 +503,7 @@ static int show_link_close_json(int fd, struct bpf_link_info *info) json_wtr); jsonw_uint_field(json_wtr, "target_obj_id", info->tracing.target_obj_id); jsonw_uint_field(json_wtr, "target_btf_id", info->tracing.target_btf_id); + jsonw_uint_field(json_wtr, "cookie", info->tracing.cookie); break; case BPF_LINK_TYPE_CGROUP: jsonw_lluint_field(json_wtr, "cgroup_id", @@ -900,6 +901,8 @@ static int show_link_close_plain(int fd, struct bpf_link_info *info) printf("\n\ttarget_obj_id %u target_btf_id %u ", info->tracing.target_obj_id, info->tracing.target_btf_id); + if (info->tracing.cookie) + printf("\n\tcookie %llu ", info->tracing.cookie); break; case BPF_LINK_TYPE_CGROUP: printf("\n\tcgroup_id %zu ", (size_t)info->cgroup.cgroup_id); |