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|
================
bpftool-perf
================
-------------------------------------------------------------------------------
tool for inspection of perf related bpf prog attachments
-------------------------------------------------------------------------------
:Manual section: 8
SYNOPSIS
========
**bpftool** [*OPTIONS*] **perf** *COMMAND*
*OPTIONS* := { [{ **-j** | **--json** }] [{ **-p** | **--pretty** }] }
*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 generic help message (similar to **bpftool help**).
-v, --version
Print version number (similar to **bpftool version**).
-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**.
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-prog**\ (8),
**bpftool-map**\ (8),
**bpftool-cgroup**\ (8),
**bpftool-feature**\ (8),
**bpftool-net**\ (8)
|
