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| <title>Debugging with GDB: Thread List Format</title> |
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| <a name="Thread-List-Format-1"></a> |
| <h3 class="section">E.17 Thread List Format</h3> |
| <a name="index-thread-list-format"></a> |
| |
| <p>To efficiently update the list of threads and their attributes, |
| <small>GDB</small> issues the ‘<samp>qXfer:threads:read</samp>’ packet |
| (see <a href="General-Query-Packets.html#qXfer-threads-read">qXfer threads read</a>) and obtains the XML document with |
| the following structure: |
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| <div class="smallexample"> |
| <pre class="smallexample"><?xml version="1.0"?> |
| <threads> |
| <thread id="id" core="0"> |
| ... description ... |
| </thread> |
| </threads> |
| </pre></div> |
| |
| <p>Each ‘<samp>thread</samp>’ element must have the ‘<samp>id</samp>’ attribute that |
| identifies the thread (see <a href="Packets.html#thread_002did-syntax">thread-id syntax</a>). The |
| ‘<samp>core</samp>’ attribute, if present, specifies which processor core |
| the thread was last executing on. The content of the of ‘<samp>thread</samp>’ |
| element is interpreted as human-readable auxilliary information. |
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