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84 lines
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<title>Tracepoint Passcounts - Debugging with GDB</title>
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<link rel="up" href="Set-Tracepoints.html#Set-Tracepoints" title="Set Tracepoints">
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<div class="node">
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<a name="Tracepoint-Passcounts"></a>
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<p>
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Next: <a rel="next" accesskey="n" href="Tracepoint-Conditions.html#Tracepoint-Conditions">Tracepoint Conditions</a>,
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Previous: <a rel="previous" accesskey="p" href="Enable-and-Disable-Tracepoints.html#Enable-and-Disable-Tracepoints">Enable and Disable Tracepoints</a>,
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Up: <a rel="up" accesskey="u" href="Set-Tracepoints.html#Set-Tracepoints">Set Tracepoints</a>
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<hr>
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</div>
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<h4 class="subsection">13.1.3 Tracepoint Passcounts</h4>
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<a name="index-passcount-880"></a>
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<a name="index-tracepoint-pass-count-881"></a>
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<dl><dt><code>passcount </code><span class="roman">[</span><var>n</var> <span class="roman">[</span><var>num</var><span class="roman">]]</span><dd>Set the <dfn>passcount</dfn> of a tracepoint. The passcount is a way to
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automatically stop a trace experiment. If a tracepoint's passcount is
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<var>n</var>, then the trace experiment will be automatically stopped on
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the <var>n</var>'th time that tracepoint is hit. If the tracepoint number
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<var>num</var> is not specified, the <code>passcount</code> command sets the
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passcount of the most recently defined tracepoint. If no passcount is
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given, the trace experiment will run until stopped explicitly by the
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user.
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<p>Examples:
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<pre class="smallexample"> (gdb) <b>passcount 5 2</b> // Stop on the 5th execution of
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<br> <code>// tracepoint 2</code><br>
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(gdb) <b>passcount 12</b> // Stop on the 12th execution of the
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<br> <code>// most recently defined tracepoint.</code><br>
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(gdb) <b>trace foo</b>
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(gdb) <b>pass 3</b>
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(gdb) <b>trace bar</b>
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(gdb) <b>pass 2</b>
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(gdb) <b>trace baz</b>
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(gdb) <b>pass 1</b> // Stop tracing when foo has been
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<br> <code>// executed 3 times OR when bar has</code><br>
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<br> <code>// been executed 2 times</code><br>
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<br> <code>// OR when baz has been executed 1 time.</code><br>
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</pre>
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</dl>
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</body></html>
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