bpftool-perf man page

bpftool-perf ā€” tool for inspection of perf related bpf prog attachments

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

Referenced By

bpftool(8), bpftool-btf(8), bpftool-cgroup(8), bpftool-feature(8), bpftool-map(8), bpftool-net(8), bpftool-prog(8).