Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
70 lines
2.0 KiB
ReStructuredText
70 lines
2.0 KiB
ReStructuredText
.. SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
|
|
|
================
|
|
bpftool-perf
|
|
================
|
|
-------------------------------------------------------------------------------
|
|
tool for inspection of perf related bpf prog attachments
|
|
-------------------------------------------------------------------------------
|
|
|
|
:Manual section: 8
|
|
|
|
.. include:: substitutions.rst
|
|
|
|
SYNOPSIS
|
|
========
|
|
|
|
**bpftool** [*OPTIONS*] **perf** *COMMAND*
|
|
|
|
*OPTIONS* := { |COMMON_OPTIONS| }
|
|
|
|
*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
|
|
=======
|
|
.. include:: common_options.rst
|
|
|
|
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}]
|