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+<title>Debugging with GDB: libthread_db.so.1 file</title>
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+</div>
+<hr>
+<a name="Automatically-loading-thread-debugging-library"></a>
+<h4 class="subsection">22.8.2 Automatically loading thread debugging library</h4>
+<a name="index-auto_002dloading-libthread_005fdb_002eso_002e1"></a>
+
+<p>This feature is currently present only on <small>GNU</small>/Linux native hosts.
+</p>
+<p><small>GDB</small> reads in some cases thread debugging library from places specific
+to the inferior (see <a href="Threads.html#set-libthread_002ddb_002dsearch_002dpath">set libthread-db-search-path</a>).
+</p>
+<p>The special &lsquo;<samp>libthread-db-search-path</samp>&rsquo; entry &lsquo;<samp>$sdir</samp>&rsquo; is processed
+without checking this &lsquo;<samp>set auto-load libthread-db</samp>&rsquo; switch as system
+libraries have to be trusted in general. In all other cases of
+&lsquo;<samp>libthread-db-search-path</samp>&rsquo; entries <small>GDB</small> checks first if &lsquo;<samp>set
+auto-load libthread-db</samp>&rsquo; is enabled before trying to open such thread debugging
+library.
+</p>
+<p>Note that loading of this debugging library also requires accordingly configured
+<code>auto-load safe-path</code> (see <a href="Auto_002dloading-safe-path.html#Auto_002dloading-safe-path">Auto-loading safe path</a>).
+</p>
+<dl compact="compact">
+<dd><a name="set-auto_002dload-libthread_002ddb"></a><a name="index-set-auto_002dload-libthread_002ddb"></a>
+</dd>
+<dt><code>set auto-load libthread-db [on|off]</code></dt>
+<dd><p>Enable or disable the auto-loading of inferior specific thread debugging library.
+</p>
+<a name="show-auto_002dload-libthread_002ddb"></a><a name="index-show-auto_002dload-libthread_002ddb"></a>
+</dd>
+<dt><code>show auto-load libthread-db</code></dt>
+<dd><p>Show whether auto-loading of inferior specific thread debugging library is
+enabled or disabled.
+</p>
+<a name="info-auto_002dload-libthread_002ddb"></a><a name="index-info-auto_002dload-libthread_002ddb"></a>
+</dd>
+<dt><code>info auto-load libthread-db</code></dt>
+<dd><p>Print the list of all loaded inferior specific thread debugging libraries and
+for each such library print list of inferior <var>pid</var>s using it.
+</p></dd>
+</dl>
+
+
+
+
+</body>
+</html>