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| <h4 class="subsection">13.1.3 Tracepoint Passcounts</h4> |
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| <a name="index-passcount-880"></a> |
| <a name="index-tracepoint-pass-count-881"></a> |
| <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 |
| 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>Examples: |
| |
| <pre class="smallexample"> (gdb) <b>passcount 5 2</b> // Stop on the 5th execution of |
| <br> <code>// tracepoint 2</code><br> |
| |
| (gdb) <b>passcount 12</b> // Stop on the 12th execution of the |
| <br> <code>// most recently defined tracepoint.</code><br> |
| (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 |
| <br> <code>// executed 3 times OR when bar has</code><br> |
| <br> <code>// been executed 2 times</code><br> |
| <br> <code>// OR when baz has been executed 1 time.</code><br> |
| </pre> |
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