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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’s passcount is
- <var>n</var>, then the trace experiment will be automatically stopped on
- the <var>n</var>’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"> <code>// tracepoint 2</code>
- </pre><pre class="smallexample">
-
- (gdb) <b>passcount 12</b> // Stop on the 12th execution of the
- </pre><pre class="smallexample"> <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"> <code>// executed 3 times OR when bar has</code>
- </pre><pre class="smallexample"> <code>// been executed 2 times</code>
- </pre><pre class="smallexample"> <code>// OR when baz has been executed 1 time.</code>
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