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<title>GDB&rsquo;s Obsolete Annotations: Multi-threaded Apps</title>

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<a name="Multi_002dthreaded-Apps"></a>
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Next: <a href="GNU-Free-Documentation-License.html#GNU-Free-Documentation-License" accesskey="n" rel="next">GNU Free Documentation License</a>, Previous: <a href="Source-Annotations.html#Source-Annotations" accesskey="p" rel="previous">Source Annotations</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>]</p>
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<a name="Multi_002dthreaded-Applications"></a>
<h2 class="chapter">14 Multi-threaded Applications</h2>
<a name="index-annotations-for-multi_002dthreaded-apps"></a>

<p>The following annotations report thread related changes of state.
</p>
<dl compact="compact">
<dd><a name="index-new_002dthread_002c-annotation"></a>
</dd>
<dt><code>^Z^Znew-thread</code></dt>
<dd>
<p>This annotation is issued once for each thread that is created apart from
the main thread, which is not reported.
</p>
<a name="index-thread_002dchanged_002c-annotation"></a>
</dd>
<dt><code>^Z^Zthread-changed</code></dt>
<dd>
<p>The selected thread has changed.  This may occur at the request of the
user with the <code>thread</code> command, or as a result of execution,
e.g., another thread hits a breakpoint.
</p>
<a name="index-thread_002dexited_002c-annotation"></a>
</dd>
<dt><code>^Z^Zthread-exited,id=&quot;<var>id</var>&quot;,group-id=&quot;<var>gid</var>&quot;</code></dt>
<dd>
<p>This annotation is issued once for each thread that exits.  The <var>id</var>
field contains the global <small>GDB</small> identifier of the thread.  The
<var>gid</var> field identifies the thread group this thread belongs to.
</p>
</dd>
</dl>


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