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  18. <title>Shared Library GDB/MI Catchpoint Commands (Debugging with GDB)</title>

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  63. <a name="Shared-Library-GDB_002fMI-Catchpoint-Commands"></a>

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  65. <p>

  66. Next: <a href="Ada-Exception-GDB_002fMI-Catchpoint-Commands.html#Ada-Exception-GDB_002fMI-Catchpoint-Commands" accesskey="n" rel="next">Ada Exception GDB/MI Catchpoint Commands</a>, Up: <a href="GDB_002fMI-Catchpoint-Commands.html#GDB_002fMI-Catchpoint-Commands" accesskey="u" rel="up">GDB/MI Catchpoint Commands</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="Shared-Library-GDB_002fMI-Catchpoints"></a>

  70. <h4 class="subsection">27.9.1 Shared Library <small>GDB/MI</small> Catchpoints</h4>

  71. 

  72. <a name="The-_002dcatch_002dload-Command"></a>

  73. <h4 class="subheading">The <code>-catch-load</code> Command</h4>

  74. <a name="index-_002dcatch_002dload"></a>

  75. 

  76. <a name="Synopsis-13"></a>

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

  78. 

  79. <div class="smallexample">

  80. <pre class="smallexample"> -catch-load [ -t ] [ -d ] <var>regexp</var>

  81. </pre></div>

  82. 

  83. <p>Add a catchpoint for library load events.  If the &lsquo;<samp>-t</samp>&rsquo; option is used,

  84. the catchpoint is a temporary one (see <a href="Set-Breaks.html#Set-Breaks">Setting

  85. Breakpoints</a>).  If the &lsquo;<samp>-d</samp>&rsquo; option is used, the catchpoint is created

  86. in a disabled state.  The &lsquo;<samp>regexp</samp>&rsquo; argument is a regular

  87. expression used to match the name of the loaded library.

  88. </p>

  89. 

  90. <a name="GDB-Command-12"></a>

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

  92. 

  93. <p>The corresponding <small>GDB</small> command is &lsquo;<samp>catch load</samp>&rsquo;.

  94. </p>

  95. <a name="Example-12"></a>

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

  97. 

  98. <div class="smallexample">

  99. <pre class="smallexample">-catch-load -t foo.so

  100. ^done,bkpt={number=&quot;1&quot;,type=&quot;catchpoint&quot;,disp=&quot;del&quot;,enabled=&quot;y&quot;,

  101. what=&quot;load of library matching foo.so&quot;,catch-type=&quot;load&quot;,times=&quot;0&quot;}

  102. (gdb)

  103. </pre></div>

  104. 

  105. 

  106. <a name="The-_002dcatch_002dunload-Command"></a>

  107. <h4 class="subheading">The <code>-catch-unload</code> Command</h4>

  108. <a name="index-_002dcatch_002dunload"></a>

  109. 

  110. <a name="Synopsis-14"></a>

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

  112. 

  113. <div class="smallexample">

  114. <pre class="smallexample"> -catch-unload [ -t ] [ -d ] <var>regexp</var>

  115. </pre></div>

  116. 

  117. <p>Add a catchpoint for library unload events.  If the &lsquo;<samp>-t</samp>&rsquo; option is

  118. used, the catchpoint is a temporary one (see <a href="Set-Breaks.html#Set-Breaks">Setting

  119. Breakpoints</a>).  If the &lsquo;<samp>-d</samp>&rsquo; option is used, the catchpoint is

  120. created in a disabled state.  The &lsquo;<samp>regexp</samp>&rsquo; argument is a regular

  121. expression used to match the name of the unloaded library.

  122. </p>

  123. <a name="GDB-Command-13"></a>

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

  125. 

  126. <p>The corresponding <small>GDB</small> command is &lsquo;<samp>catch unload</samp>&rsquo;.

  127. </p>

  128. <a name="Example-13"></a>

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

  130. 

  131. <div class="smallexample">

  132. <pre class="smallexample">-catch-unload -d bar.so

  133. ^done,bkpt={number=&quot;2&quot;,type=&quot;catchpoint&quot;,disp=&quot;keep&quot;,enabled=&quot;n&quot;,

  134. what=&quot;load of library matching bar.so&quot;,catch-type=&quot;unload&quot;,times=&quot;0&quot;}

  135. (gdb)

  136. </pre></div>

  137. 

  138. 

  139. 

  140. 

  141. </body>

  142. </html>