linux-kernel - [PATCH bpf-next 0/3] bpf/bpftool: add program & link type names

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Message-Id: <20220331154555.422506-1-milan@mdaverde.com>
Date:   Thu, 31 Mar 2022 11:45:52 -0400
From:   Milan Landaverde <milan@...verde.com>
To:     bpf@...r.kernel.org
Cc:     milan@...verde.com, ast@...nel.org, daniel@...earbox.net,
        andrii@...nel.org, kafai@...com, songliubraving@...com, yhs@...com,
        john.fastabend@...il.com, kpsingh@...nel.org,
        quentin@...valent.com, davemarchevsky@...com, sdf@...gle.com,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH bpf-next 0/3] bpf/bpftool: add program & link type names

With the addition of the syscall prog type we should now
be able to see feature probe info for that prog type:

    $ bpftool feature probe kernel
    ...
    eBPF program_type syscall is available
    ...
    eBPF helpers supported for program type syscall:
        ...
        - bpf_sys_bpf
        - bpf_sys_close

And for the link types, their names should aid in
the output.

Before:
    $ bpftool link show
    50: type 7  prog 5042
	    bpf_cookie 0
	    pids vfsstat(394433)

After:
    $ bpftool link show
    57: perf_event  prog 5058
	    bpf_cookie 0
	    pids vfsstat(394725)

Milan Landaverde (3):
  bpf/bpftool: add syscall prog type
  bpf/bpftool: add missing link types
  bpf/bpftool: handle libbpf_probe_prog_type errors

 tools/bpf/bpftool/feature.c | 2 +-
 tools/bpf/bpftool/link.c    | 2 ++
 tools/bpf/bpftool/prog.c    | 1 +
 3 files changed, 4 insertions(+), 1 deletion(-)

--
2.32.0