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132 lines
5.7 KiB
HTML
132 lines
5.7 KiB
HTML
4 years ago
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<!-- Copyright (C) 1988-2019 Free Software Foundation, Inc.
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.3 or
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any later version published by the Free Software Foundation; with the
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Invariant Sections being "Free Software" and "Free Software Needs
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Free Documentation", with the Front-Cover Texts being "A GNU Manual,"
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and with the Back-Cover Texts as in (a) below.
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(a) The FSF's Back-Cover Text is: "You are free to copy and modify
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this GNU Manual. Buying copies from GNU Press supports the FSF in
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developing GNU and promoting software freedom." -->
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<!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>Guile Auto-loading (Debugging with GDB)</title>
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<meta name="description" content="Guile Auto-loading (Debugging with GDB)">
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<meta name="keywords" content="Guile Auto-loading (Debugging with GDB)">
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<meta name="resource-type" content="document">
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<meta name="distribution" content="global">
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<meta name="Generator" content="makeinfo">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<link href="index.html#Top" rel="start" title="Top">
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<link href="Concept-Index.html#Concept-Index" rel="index" title="Concept Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Guile.html#Guile" rel="up" title="Guile">
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<link href="Guile-Modules.html#Guile-Modules" rel="next" title="Guile Modules">
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<link href="Iterators-In-Guile.html#Iterators-In-Guile" rel="prev" title="Iterators In Guile">
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<style type="text/css">
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a.summary-letter {text-decoration: none}
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blockquote.indentedblock {margin-right: 0em}
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blockquote.smallindentedblock {margin-right: 0em; font-size: smaller}
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div.example {margin-left: 3.2em}
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kbd {font-style: oblique}
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pre.display {font-family: inherit}
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pre.format {font-family: inherit}
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pre.menu-comment {font-family: serif}
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pre.menu-preformatted {font-family: serif}
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pre.smalldisplay {font-family: inherit; font-size: smaller}
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pre.smallexample {font-size: smaller}
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ul.no-bullet {list-style: none}
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-->
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</style>
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</head>
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<body lang="en">
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<a name="Guile-Auto_002dloading"></a>
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<div class="header">
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<p>
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Next: <a href="Guile-Modules.html#Guile-Modules" accesskey="n" rel="next">Guile Modules</a>, Previous: <a href="Guile-API.html#Guile-API" accesskey="p" rel="prev">Guile API</a>, Up: <a href="Guile.html#Guile" accesskey="u" rel="up">Guile</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>
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</div>
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<hr>
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<a name="Guile-Auto_002dloading-1"></a>
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<h4 class="subsection">23.3.4 Guile Auto-loading</h4>
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<a name="index-guile-auto_002dloading"></a>
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<p>When a new object file is read (for example, due to the <code>file</code>
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command, or because the inferior has loaded a shared library),
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<small>GDB</small> will look for Guile support scripts in two ways:
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<samp><var>objfile</var>-gdb.scm</samp> and the <code>.debug_gdb_scripts</code> section.
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See <a href="Auto_002dloading-extensions.html#Auto_002dloading-extensions">Auto-loading extensions</a>.
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</p>
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<p>The auto-loading feature is useful for supplying application-specific
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debugging commands and scripts.
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</p>
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<p>Auto-loading can be enabled or disabled,
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and the list of auto-loaded scripts can be printed.
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</p>
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<dl compact="compact">
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<dd><a name="set-auto_002dload-guile_002dscripts"></a><a name="index-set-auto_002dload-guile_002dscripts"></a>
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</dd>
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<dt><code>set auto-load guile-scripts [on|off]</code></dt>
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<dd><p>Enable or disable the auto-loading of Guile scripts.
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</p>
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<a name="show-auto_002dload-guile_002dscripts"></a><a name="index-show-auto_002dload-guile_002dscripts"></a>
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</dd>
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<dt><code>show auto-load guile-scripts</code></dt>
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<dd><p>Show whether auto-loading of Guile scripts is enabled or disabled.
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</p>
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<a name="info-auto_002dload-guile_002dscripts"></a><a name="index-info-auto_002dload-guile_002dscripts"></a>
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<a name="index-print-list-of-auto_002dloaded-Guile-scripts"></a>
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</dd>
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<dt><code>info auto-load guile-scripts [<var>regexp</var>]</code></dt>
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<dd><p>Print the list of all Guile scripts that <small>GDB</small> auto-loaded.
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</p>
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<p>Also printed is the list of Guile scripts that were mentioned in
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the <code>.debug_gdb_scripts</code> section and were not found.
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This is useful because their names are not printed when <small>GDB</small>
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tries to load them and fails. There may be many of them, and printing
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an error message for each one is problematic.
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</p>
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<p>If <var>regexp</var> is supplied only Guile scripts with matching names are printed.
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</p>
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<p>Example:
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</p>
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<div class="smallexample">
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<pre class="smallexample">(gdb) info auto-load guile-scripts
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Loaded Script
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Yes scm-section-script.scm
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full name: /tmp/scm-section-script.scm
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No my-foo-pretty-printers.scm
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</pre></div>
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</dd>
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</dl>
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<p>When reading an auto-loaded file, <small>GDB</small> sets the
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<em>current objfile</em>. This is available via the <code>current-objfile</code>
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procedure (see <a href="Objfiles-In-Guile.html#Objfiles-In-Guile">Objfiles In Guile</a>). This can be useful for
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registering objfile-specific pretty-printers.
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</p>
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</body>
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</html>
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