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| <a name="The-objfile_002dgdb_002eext-file"></a> |
| <h4 class="subsection">23.4.1 The <samp><var>objfile</var>-gdb.<var>ext</var></samp> file</h4> |
| <a name="index-objfile_002dgdb_002egdb"></a> |
| <a name="index-objfile_002dgdb_002epy"></a> |
| <a name="index-objfile_002dgdb_002escm"></a> |
| |
| <p>When a new object file is read, <small>GDB</small> looks for a file named |
| <samp><var>objfile</var>-gdb.<var>ext</var></samp> (we call it <var>script-name</var> below), |
| where <var>objfile</var> is the object file’s name and |
| where <var>ext</var> is the file extension for the extension language: |
| </p> |
| <dl compact="compact"> |
| <dt><code><samp><var>objfile</var>-gdb.gdb</samp></code></dt> |
| <dd><p>GDB’s own command language |
| </p></dd> |
| <dt><code><samp><var>objfile</var>-gdb.py</samp></code></dt> |
| <dd><p>Python |
| </p></dd> |
| <dt><code><samp><var>objfile</var>-gdb.scm</samp></code></dt> |
| <dd><p>Guile |
| </p></dd> |
| </dl> |
| |
| <p><var>script-name</var> is formed by ensuring that the file name of <var>objfile</var> |
| is absolute, following all symlinks, and resolving <code>.</code> and <code>..</code> |
| components, and appending the <samp>-gdb.<var>ext</var></samp> suffix. |
| If this file exists and is readable, <small>GDB</small> will evaluate it as a |
| script in the specified extension language. |
| </p> |
| <p>If this file does not exist, then <small>GDB</small> will look for |
| <var>script-name</var> file in all of the directories as specified below. |
| </p> |
| <p>Note that loading of these files requires an accordingly configured |
| <code>auto-load safe-path</code> (see <a href="Auto_002dloading-safe-path.html#Auto_002dloading-safe-path">Auto-loading safe path</a>). |
| </p> |
| <p>For object files using <samp>.exe</samp> suffix <small>GDB</small> tries to load first the |
| scripts normally according to its <samp>.exe</samp> filename. But if no scripts are |
| found <small>GDB</small> also tries script filenames matching the object file without |
| its <samp>.exe</samp> suffix. This <samp>.exe</samp> stripping is case insensitive and it |
| is attempted on any platform. This makes the script filenames compatible |
| between Unix and MS-Windows hosts. |
| </p> |
| <dl compact="compact"> |
| <dd><a name="set-auto_002dload-scripts_002ddirectory"></a><a name="index-set-auto_002dload-scripts_002ddirectory"></a> |
| </dd> |
| <dt><code>set auto-load scripts-directory <span class="roman">[</span><var>directories</var><span class="roman">]</span></code></dt> |
| <dd><p>Control <small>GDB</small> auto-loaded scripts location. Multiple directory entries |
| may be delimited by the host platform path separator in use |
| (‘<samp>:</samp>’ on Unix, ‘<samp>;</samp>’ on MS-Windows and MS-DOS). |
| </p> |
| <p>Each entry here needs to be covered also by the security setting |
| <code>set auto-load safe-path</code> (see <a href="Auto_002dloading-safe-path.html#set-auto_002dload-safe_002dpath">set auto-load safe-path</a>). |
| </p> |
| <a name="with_002dauto_002dload_002ddir"></a><p>This variable defaults to <samp>$debugdir:$datadir/auto-load</samp>. The default |
| <code>set auto-load safe-path</code> value can be also overriden by <small>GDB</small> |
| configuration option <samp>--with-auto-load-dir</samp>. |
| </p> |
| <p>Any reference to <samp>$debugdir</samp> will get replaced by |
| <var>debug-file-directory</var> value (see <a href="Separate-Debug-Files.html#Separate-Debug-Files">Separate Debug Files</a>) and any |
| reference to <samp>$datadir</samp> will get replaced by <var>data-directory</var> which is |
| determined at <small>GDB</small> startup (see <a href="Data-Files.html#Data-Files">Data Files</a>). <samp>$debugdir</samp> and |
| <samp>$datadir</samp> must be placed as a directory component — either alone or |
| delimited by <samp>/</samp> or <samp>\</samp> directory separators, depending on the host |
| platform. |
| </p> |
| <p>The list of directories uses path separator (‘<samp>:</samp>’ on GNU and Unix |
| systems, ‘<samp>;</samp>’ on MS-Windows and MS-DOS) to separate directories, similarly |
| to the <code>PATH</code> environment variable. |
| </p> |
| <a name="show-auto_002dload-scripts_002ddirectory"></a><a name="index-show-auto_002dload-scripts_002ddirectory"></a> |
| </dd> |
| <dt><code>show auto-load scripts-directory</code></dt> |
| <dd><p>Show <small>GDB</small> auto-loaded scripts location. |
| </p> |
| <a name="add_002dauto_002dload_002dscripts_002ddirectory"></a><a name="index-add_002dauto_002dload_002dscripts_002ddirectory"></a> |
| </dd> |
| <dt><code>add-auto-load-scripts-directory <span class="roman">[</span><var>directories</var>…<span class="roman">]</span></code></dt> |
| <dd><p>Add an entry (or list of entries) to the list of auto-loaded scripts locations. |
| Multiple entries may be delimited by the host platform path separator in use. |
| </p></dd> |
| </dl> |
| |
| <p><small>GDB</small> does not track which files it has already auto-loaded this way. |
| <small>GDB</small> will load the associated script every time the corresponding |
| <var>objfile</var> is opened. |
| So your <samp>-gdb.<var>ext</var></samp> file should be careful to avoid errors if it |
| is evaluated more than once. |
| </p> |
| <hr> |
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