tplist-bpfcc(8)

Usage

tplist [-p PID] [-l LIB] [-v] [filter]

Overview

tplist lists all kernel tracepoints, and can optionally print out the tracepoint format; namely, the variables that you can trace when the tracepoint is hit. tplist can also list USDT probes embedded in a specific library or executable, and can list USDT probes for all the libraries loaded by a specific process. These features are usually used in conjunction with the argdist and/or trace tools.

On a typical system, accessing the tracepoint list and format requires root. However, accessing USDT probes does not require root.

Options

-p PID: Display the USDT probes from all the libraries loaded by the specified process.

-l LIB: Display the USDT probes from the specified library or executable. If the librar or executable can be found in the standard paths, a full path is not required.

-v: Increase the verbosity level. Can be used to display the variables, locations, and arguments of tracepoints and USDT probes.

[filter]: A wildcard expression that specifies which tracepoints or probes to print. For example, block:* will print all block tracepoints (block:block_rq_complete, etc.). Regular expressions are not supported.

Examples

`Print all kernel tracepoints:`	# `tplist`
`Print all net tracepoints with their format:`	# *tplist -v 'net:'**
`Print all USDT probes in libpthread:`	$ tplist -l pthread
`Print all USDT probes in process 4717 from the libc provider:`	$ *tplist -p 4717 'libc:'**
`Print all the USDT probes in the node executable:`	$ tplist -l node

Source

This is from bcc.

: https://github.com/iovisor/bcc

OS

Linux

Stability

Unstable - in development.

Releases

Unchanged in 4 releases since Debian 10 (Buster).

10–13