BPFTOOL-PERF(8) BPFTOOL-PERF(8)
NAME
bpftool-perf - tool for inspection of perf related bpf prog attachments
SYNOPSIS
bpftool [OPTIONS] perf COMMAND
OPTIONS := { { -j | --json } [{ -p | --pretty }] | { -d | --debug }
}
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_trace-
point/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 help message (similar to bpftool help).
-V, --version
Print version number (similar to bpftool version), and op-
tional features that were included when bpftool was compiled.
Optional features include linking against libbfd to provide
the disassembler for JIT-ted programs (bpftool prog dump
jited) and usage of BPF skeletons (some features like bpftool
prog profile or showing pids associated to BPF objects may
rely on it).
-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.
-d, --debug
Print all logs available, even debug-level information. This
includes logs from libbpf as well as from the verifier, when
attempting to load programs.
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-btf(8),
bpftool-cgroup(8), bpftool-feature(8), bpftool-gen(8),
bpftool-iter(8), bpftool-link(8), bpftool-map(8), bpftool-net(8),
bpftool-prog(8), bpftool-struct_ops(8)
BPFTOOL-PERF(8)
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