Merge branch 'bpf: Show target_{obj,btf}_id for tracing link'

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Yafang Shao says:

====================
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.

v1->v2:
- Skip showing them in the plain output for the old kernels. (Quentin)
- Coding improvement. (Andrii)
====================

Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Alexei Starovoitov 2023-05-19 10:06:45 -07:00

parent effcf62416 d7e45eb480

commit 9343184cb3

2 changed files with 15 additions and 2 deletions

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11

kernel/bpf/syscall.c

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6

tools/bpf/bpftool/link.c

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