bpftool-perf.rst (2067B)
1.. SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2 3================ 4bpftool-perf 5================ 6------------------------------------------------------------------------------- 7tool for inspection of perf related bpf prog attachments 8------------------------------------------------------------------------------- 9 10:Manual section: 8 11 12.. include:: substitutions.rst 13 14SYNOPSIS 15======== 16 17 **bpftool** [*OPTIONS*] **perf** *COMMAND* 18 19 *OPTIONS* := { |COMMON_OPTIONS| } 20 21 *COMMANDS* := 22 { **show** | **list** | **help** } 23 24PERF COMMANDS 25============= 26 27| **bpftool** **perf** { **show** | **list** } 28| **bpftool** **perf help** 29 30DESCRIPTION 31=========== 32 **bpftool perf { show | list }** 33 List all raw_tracepoint, tracepoint, kprobe attachment in the system. 34 35 Output will start with process id and file descriptor in that process, 36 followed by bpf program id, attachment information, and attachment point. 37 The attachment point for raw_tracepoint/tracepoint is the trace probe name. 38 The attachment point for k[ret]probe is either symbol name and offset, 39 or a kernel virtual address. 40 The attachment point for u[ret]probe is the file name and the file offset. 41 42 **bpftool perf help** 43 Print short help message. 44 45OPTIONS 46======= 47 .. include:: common_options.rst 48 49EXAMPLES 50======== 51 52| **# bpftool perf** 53 54:: 55 56 pid 21711 fd 5: prog_id 5 kprobe func __x64_sys_write offset 0 57 pid 21765 fd 5: prog_id 7 kretprobe func __x64_sys_nanosleep offset 0 58 pid 21767 fd 5: prog_id 8 tracepoint sys_enter_nanosleep 59 pid 21800 fd 5: prog_id 9 uprobe filename /home/yhs/a.out offset 1159 60 61| 62| **# bpftool -j perf** 63 64:: 65 66 [{"pid":21711,"fd":5,"prog_id":5,"fd_type":"kprobe","func":"__x64_sys_write","offset":0}, \ 67 {"pid":21765,"fd":5,"prog_id":7,"fd_type":"kretprobe","func":"__x64_sys_nanosleep","offset":0}, \ 68 {"pid":21767,"fd":5,"prog_id":8,"fd_type":"tracepoint","tracepoint":"sys_enter_nanosleep"}, \ 69 {"pid":21800,"fd":5,"prog_id":9,"fd_type":"uprobe","filename":"/home/yhs/a.out","offset":1159}]