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toolchain-gcc-arm-embedded/share/doc/gcc-arm-none-eabi/html/gdb/Thread-List-Format.html

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  1. <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

  2. <html>

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  7. any later version published by the Free Software Foundation; with the

  8. Invariant Sections being "Free Software" and "Free Software Needs

  9. Free Documentation", with the Front-Cover Texts being "A GNU Manual,"

  10. and with the Back-Cover Texts as in (a) below.

  11. 

  12. (a) The FSF's Back-Cover Text is: "You are free to copy and modify

  13. this GNU Manual.  Buying copies from GNU Press supports the FSF in

  14. developing GNU and promoting software freedom." -->

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  16. <head>

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  18. <title>Thread List Format (Debugging with GDB)</title>

  19. 

  20. <meta name="description" content="Thread List Format (Debugging with GDB)">

  21. <meta name="keywords" content="Thread List Format (Debugging with GDB)">

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  27. <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">

  28. <link href="Remote-Protocol.html#Remote-Protocol" rel="up" title="Remote Protocol">

  29. <link href="Traceframe-Info-Format.html#Traceframe-Info-Format" rel="next" title="Traceframe Info Format">

  30. <link href="Memory-Map-Format.html#Memory-Map-Format" rel="prev" title="Memory Map Format">

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  63. <a name="Thread-List-Format"></a>

  64. <div class="header">

  65. <p>

  66. Next: <a href="Traceframe-Info-Format.html#Traceframe-Info-Format" accesskey="n" rel="next">Traceframe Info Format</a>, Previous: <a href="Memory-Map-Format.html#Memory-Map-Format" accesskey="p" rel="prev">Memory Map Format</a>, Up: <a href="Remote-Protocol.html#Remote-Protocol" accesskey="u" rel="up">Remote Protocol</a> &nbsp; [<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>

  67. </div>

  68. <hr>

  69. <a name="Thread-List-Format-1"></a>

  70. <h3 class="section">E.17 Thread List Format</h3>

  71. <a name="index-thread-list-format"></a>

  72. 

  73. <p>To efficiently update the list of threads and their attributes,

  74. <small>GDB</small> issues the &lsquo;<samp>qXfer:threads:read</samp>&rsquo; packet

  75. (see <a href="General-Query-Packets.html#qXfer-threads-read">qXfer threads read</a>) and obtains the XML document with

  76. the following structure:

  77. </p>

  78. <div class="smallexample">

  79. <pre class="smallexample">&lt;?xml version=&quot;1.0&quot;?&gt;

  80. &lt;threads&gt;

  81.     &lt;thread id=&quot;id&quot; core=&quot;0&quot; name=&quot;name&quot;&gt;

  82.     ... description ...

  83.     &lt;/thread&gt;

  84. &lt;/threads&gt;

  85. </pre></div>

  86. 

  87. <p>Each &lsquo;<samp>thread</samp>&rsquo; element must have the &lsquo;<samp>id</samp>&rsquo; attribute that

  88. identifies the thread (see <a href="Packets.html#thread_002did-syntax">thread-id syntax</a>).  The

  89. &lsquo;<samp>core</samp>&rsquo; attribute, if present, specifies which processor core

  90. the thread was last executing on.  The &lsquo;<samp>name</samp>&rsquo; attribute, if

  91. present, specifies the human-readable name of the thread.  The content

  92. of the of &lsquo;<samp>thread</samp>&rsquo; element is interpreted as human-readable

  93. auxiliary information.  The &lsquo;<samp>handle</samp>&rsquo; attribute, if present,

  94. is a hex encoded representation of the thread handle.

  95. </p>

  96. 

  97. 

  98. 

  99. 

  100. </body>

  101. </html>