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<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968" /><title>trace_signal_generate</title><meta name="generator" content="DocBook XSL Stylesheets V1.75.2" /><link rel="home" href="index.html" title="The Linux Kernel Tracepoint API" /><link rel="up" href="ch03.html" title="Chapter 3. SIGNAL" /><link rel="prev" href="ch03.html" title="Chapter 3. SIGNAL" /><link rel="next" href="re07.html" title="trace_signal_deliver" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span>trace_signal_generate</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ch03.html">Prev</a> </td><th width="60%" align="center">Chapter 3. SIGNAL</th><td width="20%" align="right"> <a accesskey="n" href="re07.html">Next</a></td></tr></table><hr /></div><div class="refentry" title="trace_signal_generate"><a id="API-trace-signal-generate"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>trace_signal_generate —
called when a signal is generated
</p></div><div class="refsynopsisdiv" title="Synopsis"><h2>Synopsis</h2><div class="funcsynopsis"><table border="0" summary="Function synopsis" cellspacing="0" cellpadding="0" class="funcprototype-table"><tr><td><code class="funcdef">void <b class="fsfunc">trace_signal_generate </b>(</code></td><td>int <var class="pdparam">sig</var>, </td></tr><tr><td> </td><td>struct siginfo * <var class="pdparam">info</var>, </td></tr><tr><td> </td><td>struct task_struct * <var class="pdparam">task</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1" title="Arguments"><a id="id2938844"></a><h2>Arguments</h2><div class="variablelist"><dl><dt><span class="term"><em class="parameter"><code>sig</code></em></span></dt><dd><p>
signal number
</p></dd><dt><span class="term"><em class="parameter"><code>info</code></em></span></dt><dd><p>
pointer to struct siginfo
</p></dd><dt><span class="term"><em class="parameter"><code>task</code></em></span></dt><dd><p>
pointer to struct task_struct
</p></dd></dl></div></div><div class="refsect1" title="Description"><a id="id2938903"></a><h2>Description</h2><p>
Current process sends a 'sig' signal to 'task' process with
'info' siginfo. If 'info' is SEND_SIG_NOINFO or SEND_SIG_PRIV,
'info' is not a pointer and you can't access its field. Instead,
SEND_SIG_NOINFO means that si_code is SI_USER, and SEND_SIG_PRIV
means that si_code is SI_KERNEL.
</p></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="ch03.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="ch03.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="re07.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Chapter 3. SIGNAL </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> <span>trace_signal_deliver</span></td></tr></table></div></body></html>
