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  63. <a name="GDB_002fMI-Thread-Commands"></a>

  64. <div class="header">

  65. <p>

  66. Next: <a href="GDB_002fMI-Ada-Tasking-Commands.html#GDB_002fMI-Ada-Tasking-Commands" accesskey="n" rel="next">GDB/MI Ada Tasking Commands</a>, Previous: <a href="GDB_002fMI-Program-Context.html#GDB_002fMI-Program-Context" accesskey="p" rel="prev">GDB/MI Program Context</a>, Up: <a href="GDB_002fMI.html#GDB_002fMI" accesskey="u" rel="up">GDB/MI</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="GDB_002fMI-Thread-Commands-1"></a>

  70. <h3 class="section">27.11 <small>GDB/MI</small> Thread Commands</h3>

  71. 

  72. 

  73. <a name="The-_002dthread_002dinfo-Command"></a>

  74. <h4 class="subheading">The <code>-thread-info</code> Command</h4>

  75. <a name="index-_002dthread_002dinfo"></a>

  76. 

  77. <a name="Synopsis-26"></a>

  78. <h4 class="subsubheading">Synopsis</h4>

  79. 

  80. <div class="smallexample">

  81. <pre class="smallexample"> -thread-info [ <var>thread-id</var> ]

  82. </pre></div>

  83. 

  84. <p>Reports information about either a specific thread, if the

  85. <var>thread-id</var> parameter is present, or about all threads.

  86. <var>thread-id</var> is the thread&rsquo;s global thread ID.  When printing

  87. information about all threads, also reports the global ID of the

  88. current thread.

  89. </p>

  90. <a name="GDB-Command-25"></a>

  91. <h4 class="subsubheading"><small>GDB</small> Command</h4>

  92. 

  93. <p>The &lsquo;<samp>info thread</samp>&rsquo; command prints the same information

  94. about all threads.

  95. </p>

  96. <a name="Result-3"></a>

  97. <h4 class="subsubheading">Result</h4>

  98. 

  99. <p>The result contains the following attributes:

  100. </p>

  101. <dl compact="compact">

  102. <dt>&lsquo;<samp>threads</samp>&rsquo;</dt>

  103. <dd><p>A list of threads.  The format of the elements of the list is described in

  104. <a href="GDB_002fMI-Thread-Information.html#GDB_002fMI-Thread-Information">GDB/MI Thread Information</a>.

  105. </p>

  106. </dd>

  107. <dt>&lsquo;<samp>current-thread-id</samp>&rsquo;</dt>

  108. <dd><p>The global id of the currently selected thread.  This field is omitted if there

  109. is no selected thread (for example, when the selected inferior is not running,

  110. and therefore has no threads) or if a <var>thread-id</var> argument was passed to

  111. the command.

  112. </p>

  113. </dd>

  114. </dl>

  115. 

  116. <a name="Example-25"></a>

  117. <h4 class="subsubheading">Example</h4>

  118. 

  119. <div class="smallexample">

  120. <pre class="smallexample">-thread-info

  121. ^done,threads=[

  122. {id=&quot;2&quot;,target-id=&quot;Thread 0xb7e14b90 (LWP 21257)&quot;,

  123.    frame={level=&quot;0&quot;,addr=&quot;0xffffe410&quot;,func=&quot;__kernel_vsyscall&quot;,

  124.            args=[]},state=&quot;running&quot;},

  125. {id=&quot;1&quot;,target-id=&quot;Thread 0xb7e156b0 (LWP 21254)&quot;,

  126.    frame={level=&quot;0&quot;,addr=&quot;0x0804891f&quot;,func=&quot;foo&quot;,

  127.            args=[{name=&quot;i&quot;,value=&quot;10&quot;}],

  128.            file=&quot;/tmp/a.c&quot;,fullname=&quot;/tmp/a.c&quot;,line=&quot;158&quot;,arch=&quot;i386:x86_64&quot;},

  129.            state=&quot;running&quot;}],

  130. current-thread-id=&quot;1&quot;

  131. (gdb)

  132. </pre></div>

  133. 

  134. <a name="The-_002dthread_002dlist_002dids-Command"></a>

  135. <h4 class="subheading">The <code>-thread-list-ids</code> Command</h4>

  136. <a name="index-_002dthread_002dlist_002dids"></a>

  137. 

  138. <a name="Synopsis-27"></a>

  139. <h4 class="subsubheading">Synopsis</h4>

  140. 

  141. <div class="smallexample">

  142. <pre class="smallexample"> -thread-list-ids

  143. </pre></div>

  144. 

  145. <p>Produces a list of the currently known global <small>GDB</small> thread ids.

  146. At the end of the list it also prints the total number of such

  147. threads.

  148. </p>

  149. <p>This command is retained for historical reasons, the

  150. <code>-thread-info</code> command should be used instead.

  151. </p>

  152. <a name="GDB-Command-26"></a>

  153. <h4 class="subsubheading"><small>GDB</small> Command</h4>

  154. 

  155. <p>Part of &lsquo;<samp>info threads</samp>&rsquo; supplies the same information.

  156. </p>

  157. <a name="Example-26"></a>

  158. <h4 class="subsubheading">Example</h4>

  159. 

  160. <div class="smallexample">

  161. <pre class="smallexample">(gdb)

  162. -thread-list-ids

  163. ^done,thread-ids={thread-id=&quot;3&quot;,thread-id=&quot;2&quot;,thread-id=&quot;1&quot;},

  164. current-thread-id=&quot;1&quot;,number-of-threads=&quot;3&quot;

  165. (gdb)

  166. </pre></div>

  167. 

  168. 

  169. <a name="The-_002dthread_002dselect-Command"></a>

  170. <h4 class="subheading">The <code>-thread-select</code> Command</h4>

  171. <a name="index-_002dthread_002dselect"></a>

  172. 

  173. <a name="Synopsis-28"></a>

  174. <h4 class="subsubheading">Synopsis</h4>

  175. 

  176. <div class="smallexample">

  177. <pre class="smallexample"> -thread-select <var>thread-id</var>

  178. </pre></div>

  179. 

  180. <p>Make thread with global thread number <var>thread-id</var> the current

  181. thread.  It prints the number of the new current thread, and the

  182. topmost frame for that thread.

  183. </p>

  184. <p>This command is deprecated in favor of explicitly using the

  185. &lsquo;<samp>--thread</samp>&rsquo; option to each command.

  186. </p>

  187. <a name="GDB-Command-27"></a>

  188. <h4 class="subsubheading"><small>GDB</small> Command</h4>

  189. 

  190. <p>The corresponding <small>GDB</small> command is &lsquo;<samp>thread</samp>&rsquo;.

  191. </p>

  192. <a name="Example-27"></a>

  193. <h4 class="subsubheading">Example</h4>

  194. 

  195. <div class="smallexample">

  196. <pre class="smallexample">(gdb)

  197. -exec-next

  198. ^running

  199. (gdb)

  200. *stopped,reason=&quot;end-stepping-range&quot;,thread-id=&quot;2&quot;,line=&quot;187&quot;,

  201. file=&quot;../../../devo/gdb/testsuite/gdb.threads/linux-dp.c&quot;

  202. (gdb)

  203. -thread-list-ids

  204. ^done,

  205. thread-ids={thread-id=&quot;3&quot;,thread-id=&quot;2&quot;,thread-id=&quot;1&quot;},

  206. number-of-threads=&quot;3&quot;

  207. (gdb)

  208. -thread-select 3

  209. ^done,new-thread-id=&quot;3&quot;,

  210. frame={level=&quot;0&quot;,func=&quot;vprintf&quot;,

  211. args=[{name=&quot;format&quot;,value=&quot;0x8048e9c \&quot;%*s%c %d %c\\n\&quot;&quot;},

  212. {name=&quot;arg&quot;,value=&quot;0x2&quot;}],file=&quot;vprintf.c&quot;,line=&quot;31&quot;,arch=&quot;i386:x86_64&quot;}

  213. (gdb)

  214. </pre></div>

  215. 

  216. <hr>

  217. <div class="header">

  218. <p>

  219. Next: <a href="GDB_002fMI-Ada-Tasking-Commands.html#GDB_002fMI-Ada-Tasking-Commands" accesskey="n" rel="next">GDB/MI Ada Tasking Commands</a>, Previous: <a href="GDB_002fMI-Program-Context.html#GDB_002fMI-Program-Context" accesskey="p" rel="prev">GDB/MI Program Context</a>, Up: <a href="GDB_002fMI.html#GDB_002fMI" accesskey="u" rel="up">GDB/MI</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>

  220. </div>

  221. 

  222. 

  223. 

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