| <html lang="en"> |
| <head> |
| <title>Guile Auto-loading - Debugging with GDB</title> |
| <meta http-equiv="Content-Type" content="text/html"> |
| <meta name="description" content="Debugging with GDB"> |
| <meta name="generator" content="makeinfo 4.13"> |
| <link title="Top" rel="start" href="index.html#Top"> |
| <link rel="up" href="Guile.html#Guile" title="Guile"> |
| <link rel="prev" href="Guile-API.html#Guile-API" title="Guile API"> |
| <link rel="next" href="Guile-Modules.html#Guile-Modules" title="Guile Modules"> |
| <link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> |
| <!-- |
| Copyright (C) 1988-2019 Free Software Foundation, Inc. |
| |
| Permission is granted to copy, distribute and/or modify this document |
| under the terms of the GNU Free Documentation License, Version 1.3 or |
| any later version published by the Free Software Foundation; with the |
| Invariant Sections being ``Free Software'' and ``Free Software Needs |
| Free Documentation'', with the Front-Cover Texts being ``A GNU Manual,'' |
| and with the Back-Cover Texts as in (a) below. |
| |
| (a) The FSF's Back-Cover Text is: ``You are free to copy and modify |
| this GNU Manual. Buying copies from GNU Press supports the FSF in |
| developing GNU and promoting software freedom.'' |
| --> |
| <meta http-equiv="Content-Style-Type" content="text/css"> |
| <style type="text/css"><!-- |
| pre.display { font-family:inherit } |
| pre.format { font-family:inherit } |
| pre.smalldisplay { font-family:inherit; font-size:smaller } |
| pre.smallformat { font-family:inherit; font-size:smaller } |
| pre.smallexample { font-size:smaller } |
| pre.smalllisp { font-size:smaller } |
| span.sc { font-variant:small-caps } |
| span.roman { font-family:serif; font-weight:normal; } |
| span.sansserif { font-family:sans-serif; font-weight:normal; } |
| --></style> |
| </head> |
| <body> |
| <div class="node"> |
| <a name="Guile-Auto-loading"></a> |
| <a name="Guile-Auto_002dloading"></a> |
| <p> |
| Next: <a rel="next" accesskey="n" href="Guile-Modules.html#Guile-Modules">Guile Modules</a>, |
| Previous: <a rel="previous" accesskey="p" href="Guile-API.html#Guile-API">Guile API</a>, |
| Up: <a rel="up" accesskey="u" href="Guile.html#Guile">Guile</a> |
| <hr> |
| </div> |
| |
| <h4 class="subsection">23.3.4 Guile Auto-loading</h4> |
| |
| <p><a name="index-guile-auto_002dloading-2871"></a> |
| When a new object file is read (for example, due to the <code>file</code> |
| command, or because the inferior has loaded a shared library), |
| <span class="sc">gdb</span> will look for Guile support scripts in two ways: |
| <samp><var>objfile</var><span class="file">-gdb.scm</span></samp> and the <code>.debug_gdb_scripts</code> section. |
| See <a href="Auto_002dloading-extensions.html#Auto_002dloading-extensions">Auto-loading extensions</a>. |
| |
| <p>The auto-loading feature is useful for supplying application-specific |
| debugging commands and scripts. |
| |
| <p>Auto-loading can be enabled or disabled, |
| and the list of auto-loaded scripts can be printed. |
| |
| <dl> |
| <a name="set-auto_002dload-guile_002dscripts"></a><a name="index-set-auto_002dload-guile_002dscripts-2872"></a><dt><code>set auto-load guile-scripts [on|off]</code><dd>Enable or disable the auto-loading of Guile scripts. |
| |
| <p><a name="show-auto_002dload-guile_002dscripts"></a><a name="index-show-auto_002dload-guile_002dscripts-2873"></a><br><dt><code>show auto-load guile-scripts</code><dd>Show whether auto-loading of Guile scripts is enabled or disabled. |
| |
| <p><a name="info-auto_002dload-guile_002dscripts"></a><a name="index-info-auto_002dload-guile_002dscripts-2874"></a><a name="index-print-list-of-auto_002dloaded-Guile-scripts-2875"></a><br><dt><code>info auto-load guile-scripts [</code><var>regexp</var><code>]</code><dd>Print the list of all Guile scripts that <span class="sc">gdb</span> auto-loaded. |
| |
| <p>Also printed is the list of Guile scripts that were mentioned in |
| the <code>.debug_gdb_scripts</code> section and were not found. |
| This is useful because their names are not printed when <span class="sc">gdb</span> |
| tries to load them and fails. There may be many of them, and printing |
| an error message for each one is problematic. |
| |
| <p>If <var>regexp</var> is supplied only Guile scripts with matching names are printed. |
| |
| <p>Example: |
| |
| <pre class="smallexample"> (gdb) info auto-load guile-scripts |
| Loaded Script |
| Yes scm-section-script.scm |
| full name: /tmp/scm-section-script.scm |
| No my-foo-pretty-printers.scm |
| </pre> |
| </dl> |
| |
| <p>When reading an auto-loaded file, <span class="sc">gdb</span> sets the |
| <dfn>current objfile</dfn>. This is available via the <code>current-objfile</code> |
| procedure (see <a href="Objfiles-In-Guile.html#Objfiles-In-Guile">Objfiles In Guile</a>). This can be useful for |
| registering objfile-specific pretty-printers. |
| |
| </body></html> |
| |