Manual: bpftool-perf

bpftool-perf(8)					   System Manager's Manual				     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_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 help message (similar to bpftool help).

       -V, --version
	      Print  bpftool's version number (similar to bpftool version), the number of the libbpf version in use, and op‐
	      tional features that were included when bpftool was compiled. Optional features include linking  against	LLVM
	      or  libbfd  to provide the disassembler for JIT-ted programs (bpftool prog dump jited) and usage of BPF skele‐
	      tons (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-to‐
       ken(8)

													     bpftool-perf(8)