| <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> |
| <html> |
| <!-- Copyright (C) 1988-2015 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." --> |
| <!-- Created by GNU Texinfo 5.2, http://www.gnu.org/software/texinfo/ --> |
| <head> |
| <title>Debugging with GDB: Summary</title> |
| |
| <meta name="description" content="Debugging with GDB: Summary"> |
| <meta name="keywords" content="Debugging with GDB: Summary"> |
| <meta name="resource-type" content="document"> |
| <meta name="distribution" content="global"> |
| <meta name="Generator" content="makeinfo"> |
| <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> |
| <link href="index.html#Top" rel="start" title="Top"> |
| <link href="Concept-Index.html#Concept-Index" rel="index" title="Concept Index"> |
| <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> |
| <link href="index.html#Top" rel="up" title="Top"> |
| <link href="Free-Software.html#Free-Software" rel="next" title="Free Software"> |
| <link href="index.html#Top" rel="prev" title="Top"> |
| <style type="text/css"> |
| <!-- |
| a.summary-letter {text-decoration: none} |
| blockquote.smallquotation {font-size: smaller} |
| div.display {margin-left: 3.2em} |
| div.example {margin-left: 3.2em} |
| div.indentedblock {margin-left: 3.2em} |
| div.lisp {margin-left: 3.2em} |
| div.smalldisplay {margin-left: 3.2em} |
| div.smallexample {margin-left: 3.2em} |
| div.smallindentedblock {margin-left: 3.2em; font-size: smaller} |
| div.smalllisp {margin-left: 3.2em} |
| kbd {font-style:oblique} |
| pre.display {font-family: inherit} |
| pre.format {font-family: inherit} |
| pre.menu-comment {font-family: serif} |
| pre.menu-preformatted {font-family: serif} |
| pre.smalldisplay {font-family: inherit; font-size: smaller} |
| pre.smallexample {font-size: smaller} |
| pre.smallformat {font-family: inherit; font-size: smaller} |
| pre.smalllisp {font-size: smaller} |
| span.nocodebreak {white-space:nowrap} |
| span.nolinebreak {white-space:nowrap} |
| span.roman {font-family:serif; font-weight:normal} |
| span.sansserif {font-family:sans-serif; font-weight:normal} |
| ul.no-bullet {list-style: none} |
| --> |
| </style> |
| |
| |
| </head> |
| |
| <body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000"> |
| <a name="Summary"></a> |
| <div class="header"> |
| <p> |
| Next: <a href="Sample-Session.html#Sample-Session" accesskey="n" rel="next">Sample Session</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> |
| </div> |
| <hr> |
| <a name="Summary-of-GDB"></a> |
| <h2 class="unnumbered">Summary of <small>GDB</small></h2> |
| |
| <p>The purpose of a debugger such as <small>GDB</small> is to allow you to see what is |
| going on “inside” another program while it executes—or what another |
| program was doing at the moment it crashed. |
| </p> |
| <p><small>GDB</small> can do four main kinds of things (plus other things in support of |
| these) to help you catch bugs in the act: |
| </p> |
| <ul> |
| <li> Start your program, specifying anything that might affect its behavior. |
| |
| </li><li> Make your program stop on specified conditions. |
| |
| </li><li> Examine what has happened, when your program has stopped. |
| |
| </li><li> Change things in your program, so you can experiment with correcting the |
| effects of one bug and go on to learn about another. |
| </li></ul> |
| |
| <p>You can use <small>GDB</small> to debug programs written in C and C<tt>++</tt>. |
| For more information, see <a href="Supported-Languages.html#Supported-Languages">Supported Languages</a>. |
| For more information, see <a href="C.html#C">C and C++</a>. |
| </p> |
| <p>Support for D is partial. For information on D, see |
| <a href="D.html#D">D</a>. |
| </p> |
| <a name="index-Modula_002d2"></a> |
| <p>Support for Modula-2 is partial. For information on Modula-2, see |
| <a href="Modula_002d2.html#Modula_002d2">Modula-2</a>. |
| </p> |
| <p>Support for OpenCL C is partial. For information on OpenCL C, see |
| <a href="OpenCL-C.html#OpenCL-C">OpenCL C</a>. |
| </p> |
| <a name="index-Pascal"></a> |
| <p>Debugging Pascal programs which use sets, subranges, file variables, or |
| nested functions does not currently work. <small>GDB</small> does not support |
| entering expressions, printing values, or similar features using Pascal |
| syntax. |
| </p> |
| <a name="index-Fortran"></a> |
| <p><small>GDB</small> can be used to debug programs written in Fortran, although |
| it may be necessary to refer to some variables with a trailing |
| underscore. |
| </p> |
| <p><small>GDB</small> can be used to debug programs written in Objective-C, |
| using either the Apple/NeXT or the GNU Objective-C runtime. |
| </p> |
| <table class="menu" border="0" cellspacing="0"> |
| <tr><td align="left" valign="top">• <a href="Free-Software.html#Free-Software" accesskey="1">Free Software</a>:</td><td> </td><td align="left" valign="top">Freely redistributable software |
| </td></tr> |
| <tr><td align="left" valign="top">• <a href="Free-Documentation.html#Free-Documentation" accesskey="2">Free Documentation</a>:</td><td> </td><td align="left" valign="top">Free Software Needs Free Documentation |
| </td></tr> |
| <tr><td align="left" valign="top">• <a href="Contributors.html#Contributors" accesskey="3">Contributors</a>:</td><td> </td><td align="left" valign="top">Contributors to GDB |
| </td></tr> |
| </table> |
| |
| <hr> |
| <div class="header"> |
| <p> |
| Next: <a href="Sample-Session.html#Sample-Session" accesskey="n" rel="next">Sample Session</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> |
| </div> |
| |
| |
| |
| </body> |
| </html> |
