plucky (8) bpftool-perf.8.gz

NAME

       bpftool-perf - tool for inspection of perf related bpf prog attachments

SYNOPSIS

       bpftool [OPTIONS] perf COMMAND

       OPTIONS := { { -j | --json } [{ -p | --pretty }] | { -d | --debug } }

       COMMANDS := { show | list | help }

PERF COMMANDS

       bpftool perf { show | list }
       bpftool perf help

DESCRIPTION

       bpftool perf { show | list }
              List all raw_tracepoint, tracepoint, kprobe attachment in the system.

              Output will start with process id and file descriptor in that process, followed by bpf program id,
              attachment information, and attachment point.  The attachment point for  raw_tracepoint/tracepoint
              is  the  trace probe name.  The attachment point for k[ret]probe is either symbol name and offset,
              or a kernel virtual address. The attachment point for u[ret]probe is the file name  and  the  file
              offset.

       bpftool perf help
              Print short help message.

OPTIONS

       -h, --help
              Print short help message (similar to bpftool help).

       -V, --version
              Print  bpftool's  version number (similar to bpftool version), the number of the libbpf version in
              use, and optional features that were included when bpftool was compiled. Optional features include
              linking against LLVM or libbfd to provide the disassembler for JIT-ted programs (bpftool prog dump
              jited) and usage of BPF skeletons (some  features  like  bpftool  prog  profile  or  showing  pids
              associated to BPF objects may rely on it).

       -j, --json
              Generate JSON output. For commands that cannot produce JSON, this option has no effect.

       -p, --pretty
              Generate human-readable JSON output. Implies -j.

       -d, --debug
              Print  all logs available, even debug-level information. This includes logs from libbpf as well as
              from the verifier, when attempting to load programs.

EXAMPLES

       # bpftool perf

          pid 21711  fd 5: prog_id 5  kprobe  func __x64_sys_write  offset 0
          pid 21765  fd 5: prog_id 7  kretprobe  func __x64_sys_nanosleep  offset 0
          pid 21767  fd 5: prog_id 8  tracepoint  sys_enter_nanosleep
          pid 21800  fd 5: prog_id 9  uprobe  filename /home/yhs/a.out  offset 1159

       # bpftool -j perf

          [{"pid":21711,"fd":5,"prog_id":5,"fd_type":"kprobe","func":"__x64_sys_write","offset":0}, \
           {"pid":21765,"fd":5,"prog_id":7,"fd_type":"kretprobe","func":"__x64_sys_nanosleep","offset":0}, \
           {"pid":21767,"fd":5,"prog_id":8,"fd_type":"tracepoint","tracepoint":"sys_enter_nanosleep"}, \
           {"pid":21800,"fd":5,"prog_id":9,"fd_type":"uprobe","filename":"/home/yhs/a.out","offset":1159}]

SEE ALSO

       bpf(2),    bpf-helpers(7),    bpftool(8),    bpftool-btf(8),    bpftool-cgroup(8),    bpftool-feature(8),
       bpftool-gen(8),   bpftool-iter(8),   bpftool-link(8),  bpftool-map(8),  bpftool-net(8),  bpftool-prog(8),
       bpftool-struct_ops(8)

                                                                                                 BPFTOOL-PERF(8)