1<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 2<html> 3<!-- Copyright (C) 1988-2021 Free Software Foundation, Inc. 4 5Permission is granted to copy, distribute and/or modify this document 6under the terms of the GNU Free Documentation License, Version 1.3 or 7any later version published by the Free Software Foundation; with the 8Invariant Sections being "Free Software" and "Free Software Needs 9Free Documentation", with the Front-Cover Texts being "A GNU Manual," 10and with the Back-Cover Texts as in (a) below. 11 12(a) The FSF's Back-Cover Text is: "You are free to copy and modify 13this GNU Manual. Buying copies from GNU Press supports the FSF in 14developing GNU and promoting software freedom." --> 15<!-- Created by GNU Texinfo 5.1, http://www.gnu.org/software/texinfo/ --> 16<head> 17<title>Debugging with GDB: Source</title> 18 19<meta name="description" content="Debugging with GDB: Source"> 20<meta name="keywords" content="Debugging with GDB: Source"> 21<meta name="resource-type" content="document"> 22<meta name="distribution" content="global"> 23<meta name="Generator" content="makeinfo"> 24<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> 25<link href="index.html#Top" rel="start" title="Top"> 26<link href="Concept-Index.html#Concept-Index" rel="index" title="Concept Index"> 27<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> 28<link href="index.html#Top" rel="up" title="Top"> 29<link href="List.html#List" rel="next" title="List"> 30<link href="Frame-Filter-Management.html#Frame-Filter-Management" rel="previous" title="Frame Filter Management"> 31<style type="text/css"> 32<!-- 33a.summary-letter {text-decoration: none} 34blockquote.smallquotation {font-size: smaller} 35div.display {margin-left: 3.2em} 36div.example {margin-left: 3.2em} 37div.indentedblock {margin-left: 3.2em} 38div.lisp {margin-left: 3.2em} 39div.smalldisplay {margin-left: 3.2em} 40div.smallexample {margin-left: 3.2em} 41div.smallindentedblock {margin-left: 3.2em; font-size: smaller} 42div.smalllisp {margin-left: 3.2em} 43kbd {font-style:oblique} 44pre.display {font-family: inherit} 45pre.format {font-family: inherit} 46pre.menu-comment {font-family: serif} 47pre.menu-preformatted {font-family: serif} 48pre.smalldisplay {font-family: inherit; font-size: smaller} 49pre.smallexample {font-size: smaller} 50pre.smallformat {font-family: inherit; font-size: smaller} 51pre.smalllisp {font-size: smaller} 52span.nocodebreak {white-space:nowrap} 53span.nolinebreak {white-space:nowrap} 54span.roman {font-family:serif; font-weight:normal} 55span.sansserif {font-family:sans-serif; font-weight:normal} 56ul.no-bullet {list-style: none} 57--> 58</style> 59 60 61</head> 62 63<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000"> 64<a name="Source"></a> 65<div class="header"> 66<p> 67Next: <a href="Data.html#Data" accesskey="n" rel="next">Data</a>, Previous: <a href="Stack.html#Stack" accesskey="p" rel="previous">Stack</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> 68</div> 69<hr> 70<a name="Examining-Source-Files"></a> 71<h2 class="chapter">9 Examining Source Files</h2> 72 73<p><small>GDB</small> can print parts of your program’s source, since the debugging 74information recorded in the program tells <small>GDB</small> what source files were 75used to build it. When your program stops, <small>GDB</small> spontaneously prints 76the line where it stopped. Likewise, when you select a stack frame 77(see <a href="Selection.html#Selection">Selecting a Frame</a>), <small>GDB</small> prints the line where 78execution in that frame has stopped. You can print other portions of 79source files by explicit command. 80</p> 81<p>If you use <small>GDB</small> through its <small>GNU</small> Emacs interface, you may 82prefer to use Emacs facilities to view source; see <a href="Emacs.html#Emacs">Using 83<small>GDB</small> under <small>GNU</small> Emacs</a>. 84</p> 85<table class="menu" border="0" cellspacing="0"> 86<tr><td align="left" valign="top">• <a href="List.html#List" accesskey="1">List</a>:</td><td> </td><td align="left" valign="top">Printing source lines 87</td></tr> 88<tr><td align="left" valign="top">• <a href="Specify-Location.html#Specify-Location" accesskey="2">Specify Location</a>:</td><td> </td><td align="left" valign="top">How to specify code locations 89</td></tr> 90<tr><td align="left" valign="top">• <a href="Edit.html#Edit" accesskey="3">Edit</a>:</td><td> </td><td align="left" valign="top">Editing source files 91</td></tr> 92<tr><td align="left" valign="top">• <a href="Search.html#Search" accesskey="4">Search</a>:</td><td> </td><td align="left" valign="top">Searching source files 93</td></tr> 94<tr><td align="left" valign="top">• <a href="Source-Path.html#Source-Path" accesskey="5">Source Path</a>:</td><td> </td><td align="left" valign="top">Specifying source directories 95</td></tr> 96<tr><td align="left" valign="top">• <a href="Machine-Code.html#Machine-Code" accesskey="6">Machine Code</a>:</td><td> </td><td align="left" valign="top">Source and machine code 97</td></tr> 98</table> 99 100 101 102 103</body> 104</html> 105