<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>Chapter 21. Logging Tapset</title><meta name="generator" content="DocBook XSL Stylesheets V1.69.1"><link rel="start" href="index.html" title="SystemTap Tapset Reference Manual"><link rel="up" href="index.html" title="SystemTap Tapset Reference Manual"><link rel="prev" href="re403.html" title="function::task_dentry_path"><link rel="next" href="re404.html" title="function::error"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 21. Logging Tapset</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="re403.html">Prev</a> </td><th width="60%" align="center"> </th><td width="20%" align="right"> <a accesskey="n" href="re404.html">Next</a></td></tr></table><hr></div><div class="chapter" lang="en"><div class="titlepage"><div><div><h2 class="title"><a name="logging.stp"></a>Chapter 21. Logging Tapset</h2></div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><span class="refentrytitle"><a href="re404.html"><span>function::error</span></a></span><span class="refpurpose"> - Send an error message </span></dt><dt><span class="refentrytitle"><a href="re405.html"><span>function::exit</span></a></span><span class="refpurpose"> - Start shutting down probing script. </span></dt><dt><span class="refentrytitle"><a href="re406.html"><span>function::ftrace</span></a></span><span class="refpurpose"> - Send a message to the ftrace ring-buffer </span></dt><dt><span class="refentrytitle"><a href="re407.html"><span>function::log</span></a></span><span class="refpurpose"> - Send a line to the common trace buffer </span></dt><dt><span class="refentrytitle"><a href="re408.html"><span>function::printk</span></a></span><span class="refpurpose"> - Send a message to the kernel trace buffer </span></dt><dt><span class="refentrytitle"><a href="re409.html"><span>function::warn</span></a></span><span class="refpurpose"> - Send a line to the warning stream </span></dt></dl></div><p> This family of functions is used to send simple message strings to various destinations. </p></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="re403.html">Prev</a> </td><td width="20%" align="center"> </td><td width="40%" align="right"> <a accesskey="n" href="re404.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span>function::task_dentry_path</span> </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> <span>function::error</span></td></tr></table></div></body></html>