1BPFTOOL-PERF(8)                                                BPFTOOL-PERF(8)
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NAME

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

9          bpftool [OPTIONS] perf COMMAND
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11          OPTIONS := { [{ -j | --json }] [{ -p | --pretty }] }
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13          COMMANDS := { show | list | help }
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PERF COMMANDS

16       bpftool perf { show | list }
17       bpftool perf help
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DESCRIPTION

21          bpftool perf { show | list }
22                 List all raw_tracepoint, tracepoint, kprobe attachment in the
23                 system.
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25                 Output will start with process id and file descriptor in that
26                 process,  followed by bpf program id, attachment information,
27                 and attachment point.  The attachment  point  for  raw_trace‐
28                 point/tracepoint  is  the  trace  probe name.  The attachment
29                 point for k[ret]probe is either symbol name and offset, or  a
30                 kernel virtual address.  The attachment point for u[ret]probe
31                 is the file name and the file offset.
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33          bpftool perf help
34                 Print short help message.
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OPTIONS

37          -h, --help
38                 Print short generic help message (similar to bpftool help).
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40          -v, --version
41                 Print version number (similar to bpftool version).
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43          -j, --json
44                 Generate JSON output. For commands that cannot produce  JSON,
45                 this option has no effect.
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47          -p, --pretty
48                 Generate human-readable JSON output. Implies -j.
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EXAMPLES

51       # bpftool perf
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54          pid 21711  fd 5: prog_id 5  kprobe  func __x64_sys_write  offset 0
55          pid 21765  fd 5: prog_id 7  kretprobe  func __x64_sys_nanosleep  offset 0
56          pid 21767  fd 5: prog_id 8  tracepoint  sys_enter_nanosleep
57          pid 21800  fd 5: prog_id 9  uprobe  filename /home/yhs/a.out  offset 1159
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59       # bpftool -j perf
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62          [{"pid":21711,"fd":5,"prog_id":5,"fd_type":"kprobe","func":"__x64_sys_write","offset":0}, \
63           {"pid":21765,"fd":5,"prog_id":7,"fd_type":"kretprobe","func":"__x64_sys_nanosleep","offset":0}, \
64           {"pid":21767,"fd":5,"prog_id":8,"fd_type":"tracepoint","tracepoint":"sys_enter_nanosleep"}, \
65           {"pid":21800,"fd":5,"prog_id":9,"fd_type":"uprobe","filename":"/home/yhs/a.out","offset":1159}]
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SEE ALSO

68          bpf(2), bpf-helpers(7), bpftool(8), bpftool-prog(8), bpftool-map(8),
69          bpftool-cgroup(8), bpftool-feature(8), bpftool-net(8)
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74                                                               BPFTOOL-PERF(8)
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