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<a name="Tracepoint-Passcounts"></a>
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<a name="Tracepoint-Passcounts-1"></a>
<h4 class="subsection">13.1.3 Tracepoint Passcounts</h4>

<dl compact="compact">
<dd><a name="index-passcount"></a>
<a name="index-tracepoint-pass-count"></a>
</dd>
<dt><code>passcount <span class="roman">[</span><var>n</var> <span class="roman">[</span><var>num</var><span class="roman">]]</span></code></dt>
<dd><p>Set the <em>passcount</em> of a tracepoint.  The passcount is a way to
automatically stop a trace experiment.  If a tracepoint&rsquo;s passcount is
<var>n</var>, then the trace experiment will be automatically stopped on
the <var>n</var>&rsquo;th time that tracepoint is hit.  If the tracepoint number
<var>num</var> is not specified, the <code>passcount</code> command sets the
passcount of the most recently defined tracepoint.  If no passcount is
given, the trace experiment will run until stopped explicitly by the
user.
</p>
<p>Examples:
</p>
<div class="smallexample">
<pre class="smallexample">(gdb) <b>passcount 5 2</b> // Stop on the 5th execution of
</pre><pre class="smallexample">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<code>// tracepoint 2</code>
</pre><pre class="smallexample">

(gdb) <b>passcount 12</b>  // Stop on the 12th execution of the
</pre><pre class="smallexample">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<code>// most recently defined tracepoint.</code>
</pre><pre class="smallexample">(gdb) <b>trace foo</b>
(gdb) <b>pass 3</b>
(gdb) <b>trace bar</b>
(gdb) <b>pass 2</b>
(gdb) <b>trace baz</b>
(gdb) <b>pass 1</b>        // Stop tracing when foo has been
</pre><pre class="smallexample">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<code>// executed 3 times OR when bar has</code>
</pre><pre class="smallexample">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<code>// been executed 2 times</code>
</pre><pre class="smallexample">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<code>// OR when baz has been executed 1 time.</code>
</pre></div>
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