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)