1<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 2<html> 3<!-- Copyright (C) 1988-2021 Free Software Foundation, Inc. 4 5Permission is granted to copy, distribute and/or modify this document 6under the terms of the GNU Free Documentation License, Version 1.3 or 7any later version published by the Free Software Foundation; with the 8Invariant Sections being "Free Software" and "Free Software Needs 9Free Documentation", with the Front-Cover Texts being "A GNU Manual," 10and 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 13this GNU Manual. 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This allows the 77user to automatically customize <small>GDB</small> for the program 78being debugged. 79</p> 80<table class="menu" border="0" cellspacing="0"> 81<tr><td align="left" valign="top">• <a href="Sequences.html#Sequences" accesskey="1">Sequences</a>:</td><td> </td><td align="left" valign="top">Canned Sequences of <small>GDB</small> Commands 82</td></tr> 83<tr><td align="left" valign="top">• <a href="Python.html#Python" accesskey="2">Python</a>:</td><td> </td><td align="left" valign="top">Extending <small>GDB</small> using Python 84</td></tr> 85<tr><td align="left" valign="top">• <a href="Guile.html#Guile" accesskey="3">Guile</a>:</td><td> </td><td align="left" valign="top">Extending <small>GDB</small> using Guile 86</td></tr> 87<tr><td align="left" valign="top">• <a href="Auto_002dloading-extensions.html#Auto_002dloading-extensions" accesskey="4">Auto-loading extensions</a>:</td><td> </td><td align="left" valign="top">Automatically loading extensions 88</td></tr> 89<tr><td align="left" valign="top">• <a href="Multiple-Extension-Languages.html#Multiple-Extension-Languages" accesskey="5">Multiple Extension Languages</a>:</td><td> </td><td align="left" valign="top">Working with multiple extension languages 90</td></tr> 91<tr><td align="left" valign="top">• <a href="Aliases.html#Aliases" accesskey="6">Aliases</a>:</td><td> </td><td align="left" valign="top">Creating new spellings of existing commands 92</td></tr> 93</table> 94 95<p>To facilitate the use of extension languages, <small>GDB</small> is capable 96of evaluating the contents of a file. When doing so, <small>GDB</small> 97can recognize which extension language is being used by looking at 98the filename extension. Files with an unrecognized filename extension 99are always treated as a <small>GDB</small> Command Files. 100See <a href="Command-Files.html#Command-Files">Command files</a>. 101</p> 102<p>You can control how <small>GDB</small> evaluates these files with the following 103setting: 104</p> 105<dl compact="compact"> 106<dd><a name="index-set-script_002dextension"></a> 107<a name="index-show-script_002dextension"></a> 108</dd> 109<dt><code>set script-extension off</code></dt> 110<dd><p>All scripts are always evaluated as <small>GDB</small> Command Files. 111</p> 112</dd> 113<dt><code>set script-extension soft</code></dt> 114<dd><p>The debugger determines the scripting language based on filename 115extension. If this scripting language is supported, <small>GDB</small> 116evaluates the script using that language. Otherwise, it evaluates 117the file as a <small>GDB</small> Command File. 118</p> 119</dd> 120<dt><code>set script-extension strict</code></dt> 121<dd><p>The debugger determines the scripting language based on filename 122extension, and evaluates the script using that language. If the 123language is not supported, then the evaluation fails. 124</p> 125</dd> 126<dt><code>show script-extension</code></dt> 127<dd><p>Display the current value of the <code>script-extension</code> option. 128</p> 129</dd> 130</dl> 131 132 133<hr> 134<div class="header"> 135<p> 136Next: <a href="Interpreters.html#Interpreters" accesskey="n" rel="next">Interpreters</a>, Previous: <a href="Controlling-GDB.html#Controlling-GDB" accesskey="p" rel="previous">Controlling GDB</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</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> 137</div> 138 139 140 141</body> 142</html> 143