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| Next: <a href="Target-Description-Format.html#Target-Description-Format" accesskey="n" rel="next">Target Description Format</a>, Up: <a href="Target-Descriptions.html#Target-Descriptions" accesskey="u" rel="up">Target Descriptions</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p> |
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| <a name="Retrieving-Descriptions-1"></a> |
| <h3 class="section">G.1 Retrieving Descriptions</h3> |
| |
| <p>Target descriptions can be read from the target automatically, or |
| specified by the user manually. The default behavior is to read the |
| description from the target. <small>GDB</small> retrieves it via the remote |
| protocol using ‘<samp>qXfer</samp>’ requests (see <a href="General-Query-Packets.html#General-Query-Packets">qXfer</a>). The <var>annex</var> in the ‘<samp>qXfer</samp>’ packet will be |
| ‘<samp>target.xml</samp>’. The contents of the ‘<samp>target.xml</samp>’ annex are an |
| XML document, of the form described in <a href="Target-Description-Format.html#Target-Description-Format">Target Description Format</a>. |
| </p> |
| <p>Alternatively, you can specify a file to read for the target description. |
| If a file is set, the target will not be queried. The commands to |
| specify a file are: |
| </p> |
| <dl compact="compact"> |
| <dd><a name="index-set-tdesc-filename"></a> |
| </dd> |
| <dt><code>set tdesc filename <var>path</var></code></dt> |
| <dd><p>Read the target description from <var>path</var>. |
| </p> |
| <a name="index-unset-tdesc-filename"></a> |
| </dd> |
| <dt><code>unset tdesc filename</code></dt> |
| <dd><p>Do not read the XML target description from a file. <small>GDB</small> |
| will use the description supplied by the current target. |
| </p> |
| <a name="index-show-tdesc-filename"></a> |
| </dd> |
| <dt><code>show tdesc filename</code></dt> |
| <dd><p>Show the filename to read for a target description, if any. |
| </p></dd> |
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