[bpf-next,0/2] bpf: Show target_{obj,btf}_id for tracing link

Message

Yafang Shao May 16, 2023, 12:39 p.m. UTC

The target_btf_id can help us understand which kernel function is
linked by a tracing prog. The target_btf_id and target_obj_id have
already been exposed to userspace, so we just need to show them.

For some other link types like perf_event and kprobe_multi, it is not
easy to find which functions are attached either. We may support
->fill_link_info for them in the future.

Yafang Shao (2):
  bpf: Show target_{obj,btf}_id in tracing link fdinfo
  bpftool: Show target_{obj,btf}_id in tracing link info

 kernel/bpf/syscall.c     | 12 ++++++++++--
 tools/bpf/bpftool/link.c |  4 ++++
 2 files changed, 14 insertions(+), 2 deletions(-)