You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

Auto_002dloading-extensions.html 5.4KB

3 years ago
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105
  1. <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
  2. <html>
  3. <!-- Copyright (C) 1988-2020 Free Software Foundation, Inc.
  4. Permission is granted to copy, distribute and/or modify this document
  5. under the terms of the GNU Free Documentation License, Version 1.3 or
  6. any later version published by the Free Software Foundation; with the
  7. Invariant Sections being "Free Software" and "Free Software Needs
  8. Free Documentation", with the Front-Cover Texts being "A GNU Manual,"
  9. and with the Back-Cover Texts as in (a) below.
  10. (a) The FSF's Back-Cover Text is: "You are free to copy and modify
  11. this GNU Manual. Buying copies from GNU Press supports the FSF in
  12. developing GNU and promoting software freedom." -->
  13. <!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ -->
  14. <head>
  15. <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
  16. <title>Auto-loading extensions (Debugging with GDB)</title>
  17. <meta name="description" content="Auto-loading extensions (Debugging with GDB)">
  18. <meta name="keywords" content="Auto-loading extensions (Debugging with GDB)">
  19. <meta name="resource-type" content="document">
  20. <meta name="distribution" content="global">
  21. <meta name="Generator" content="makeinfo">
  22. <link href="index.html#Top" rel="start" title="Top">
  23. <link href="Concept-Index.html#Concept-Index" rel="index" title="Concept Index">
  24. <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
  25. <link href="Extending-GDB.html#Extending-GDB" rel="up" title="Extending GDB">
  26. <link href="objfile_002dgdbdotext-file.html#objfile_002dgdbdotext-file" rel="next" title="objfile-gdbdotext file">
  27. <link href="Guile-Types-Module.html#Guile-Types-Module" rel="prev" title="Guile Types Module">
  28. <style type="text/css">
  29. <!--
  30. a.summary-letter {text-decoration: none}
  31. blockquote.indentedblock {margin-right: 0em}
  32. blockquote.smallindentedblock {margin-right: 0em; font-size: smaller}
  33. blockquote.smallquotation {font-size: smaller}
  34. div.display {margin-left: 3.2em}
  35. div.example {margin-left: 3.2em}
  36. div.lisp {margin-left: 3.2em}
  37. div.smalldisplay {margin-left: 3.2em}
  38. div.smallexample {margin-left: 3.2em}
  39. div.smalllisp {margin-left: 3.2em}
  40. kbd {font-style: oblique}
  41. pre.display {font-family: inherit}
  42. pre.format {font-family: inherit}
  43. pre.menu-comment {font-family: serif}
  44. pre.menu-preformatted {font-family: serif}
  45. pre.smalldisplay {font-family: inherit; font-size: smaller}
  46. pre.smallexample {font-size: smaller}
  47. pre.smallformat {font-family: inherit; font-size: smaller}
  48. pre.smalllisp {font-size: smaller}
  49. span.nolinebreak {white-space: nowrap}
  50. span.roman {font-family: initial; font-weight: normal}
  51. span.sansserif {font-family: sans-serif; font-weight: normal}
  52. ul.no-bullet {list-style: none}
  53. -->
  54. </style>
  55. </head>
  56. <body lang="en">
  57. <a name="Auto_002dloading-extensions"></a>
  58. <div class="header">
  59. <p>
  60. Next: <a href="Multiple-Extension-Languages.html#Multiple-Extension-Languages" accesskey="n" rel="next">Multiple Extension Languages</a>, Previous: <a href="Guile.html#Guile" accesskey="p" rel="prev">Guile</a>, Up: <a href="Extending-GDB.html#Extending-GDB" accesskey="u" rel="up">Extending GDB</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>
  61. </div>
  62. <hr>
  63. <a name="Auto_002dloading-extensions-1"></a>
  64. <h3 class="section">23.4 Auto-loading extensions</h3>
  65. <a name="index-auto_002dloading-extensions"></a>
  66. <p><small>GDB</small> provides two mechanisms for automatically loading extensions
  67. when a new object file is read (for example, due to the <code>file</code>
  68. command, or because the inferior has loaded a shared library):
  69. <samp><var>objfile</var>-gdb.<var>ext</var></samp> and the <code>.debug_gdb_scripts</code>
  70. section of modern file formats like ELF.
  71. </p>
  72. <table class="menu" border="0" cellspacing="0">
  73. <tr><td align="left" valign="top">&bull; <a href="objfile_002dgdbdotext-file.html#objfile_002dgdbdotext-file" accesskey="1">objfile-gdb.ext file</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">The <samp><var>objfile</var>-gdb.<var>ext</var></samp> file
  74. </td></tr>
  75. <tr><td align="left" valign="top">&bull; <a href="dotdebug_005fgdb_005fscripts-section.html#dotdebug_005fgdb_005fscripts-section" accesskey="2">.debug_gdb_scripts section</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">The <code>.debug_gdb_scripts</code> section
  76. </td></tr>
  77. <tr><td align="left" valign="top">&bull; <a href="Which-flavor-to-choose_003f.html#Which-flavor-to-choose_003f" accesskey="3">Which flavor to choose?</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
  78. </td></tr>
  79. </table>
  80. <p>The auto-loading feature is useful for supplying application-specific
  81. debugging commands and features.
  82. </p>
  83. <p>Auto-loading can be enabled or disabled,
  84. and the list of auto-loaded scripts can be printed.
  85. See the &lsquo;<samp>auto-loading</samp>&rsquo; section of each extension language
  86. for more information.
  87. For <small>GDB</small> command files see <a href="Auto_002dloading-sequences.html#Auto_002dloading-sequences">Auto-loading sequences</a>.
  88. For Python files see <a href="Python-Auto_002dloading.html#Python-Auto_002dloading">Python Auto-loading</a>.
  89. </p>
  90. <p>Note that loading of this script file also requires accordingly configured
  91. <code>auto-load safe-path</code> (see <a href="Auto_002dloading-safe-path.html#Auto_002dloading-safe-path">Auto-loading safe path</a>).
  92. </p>
  93. </body>
  94. </html>