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1.. SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)2 3================4bpftool-perf5================6-------------------------------------------------------------------------------7tool for inspection of perf related bpf prog attachments8-------------------------------------------------------------------------------9 10:Manual section: 811 12.. include:: substitutions.rst13 14SYNOPSIS15========16 17**bpftool** [*OPTIONS*] **perf** *COMMAND*18 19*OPTIONS* := { |COMMON_OPTIONS| }20 21*COMMANDS* :=22{ **show** | **list** | **help** }23 24PERF COMMANDS25=============26 27| **bpftool** **perf** { **show** | **list** }28| **bpftool** **perf help**29 30DESCRIPTION31===========32bpftool 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, or a39 kernel virtual address. The attachment point for u[ret]probe is the file40 name and the file offset.41 42bpftool perf help43 Print short help message.44 45OPTIONS46=======47.. include:: common_options.rst48 49EXAMPLES50========51 52| **# bpftool perf**53 54::55 56 pid 21711 fd 5: prog_id 5 kprobe func __x64_sys_write offset 057 pid 21765 fd 5: prog_id 7 kretprobe func __x64_sys_nanosleep offset 058 pid 21767 fd 5: prog_id 8 tracepoint sys_enter_nanosleep59 pid 21800 fd 5: prog_id 9 uprobe filename /home/yhs/a.out offset 115960 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}]70