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104 lines
5.1 KiB
HTML
104 lines
5.1 KiB
HTML
4 years ago
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<!-- Copyright (C) 1988-2019 Free Software Foundation, Inc.
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.3 or
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any later version published by the Free Software Foundation; with the
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Invariant Sections being "Free Software" and "Free Software Needs
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Free Documentation", with the Front-Cover Texts being "A GNU Manual,"
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and with the Back-Cover Texts as in (a) below.
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(a) The FSF's Back-Cover Text is: "You are free to copy and modify
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this GNU Manual. Buying copies from GNU Press supports the FSF in
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developing GNU and promoting software freedom." -->
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<!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>Altering (Debugging with GDB)</title>
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<meta name="description" content="Altering (Debugging with GDB)">
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<meta name="keywords" content="Altering (Debugging with GDB)">
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<meta name="resource-type" content="document">
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<meta name="distribution" content="global">
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<meta name="Generator" content="makeinfo">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<link href="index.html#Top" rel="start" title="Top">
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<link href="Concept-Index.html#Concept-Index" rel="index" title="Concept Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="index.html#Top" rel="up" title="Top">
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<link href="Assignment.html#Assignment" rel="next" title="Assignment">
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<link href="Symbols.html#Symbols" rel="prev" title="Symbols">
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-->
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</style>
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</head>
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<body lang="en">
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<a name="Altering"></a>
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<div class="header">
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<p>
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Next: <a href="GDB-Files.html#GDB-Files" accesskey="n" rel="next">GDB Files</a>, Previous: <a href="Symbols.html#Symbols" accesskey="p" rel="prev">Symbols</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>
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</div>
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<hr>
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<a name="Altering-Execution"></a>
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<h2 class="chapter">17 Altering Execution</h2>
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<p>Once you think you have found an error in your program, you might want to
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find out for certain whether correcting the apparent error would lead to
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correct results in the rest of the run. You can find the answer by
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experiment, using the <small>GDB</small> features for altering execution of the
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program.
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</p>
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<p>For example, you can store new values into variables or memory
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locations, give your program a signal, restart it at a different
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address, or even return prematurely from a function.
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</p>
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<table class="menu" border="0" cellspacing="0">
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<tr><td align="left" valign="top">• <a href="Assignment.html#Assignment" accesskey="1">Assignment</a>:</td><td> </td><td align="left" valign="top">Assignment to variables
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</td></tr>
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<tr><td align="left" valign="top">• <a href="Jumping.html#Jumping" accesskey="2">Jumping</a>:</td><td> </td><td align="left" valign="top">Continuing at a different address
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</td></tr>
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<tr><td align="left" valign="top">• <a href="Signaling.html#Signaling" accesskey="3">Signaling</a>:</td><td> </td><td align="left" valign="top">Giving your program a signal
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</td></tr>
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<tr><td align="left" valign="top">• <a href="Returning.html#Returning" accesskey="4">Returning</a>:</td><td> </td><td align="left" valign="top">Returning from a function
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</td></tr>
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<tr><td align="left" valign="top">• <a href="Calling.html#Calling" accesskey="5">Calling</a>:</td><td> </td><td align="left" valign="top">Calling your program’s functions
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</td></tr>
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<tr><td align="left" valign="top">• <a href="Patching.html#Patching" accesskey="6">Patching</a>:</td><td> </td><td align="left" valign="top">Patching your program
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</td></tr>
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<tr><td align="left" valign="top">• <a href="Compiling-and-Injecting-Code.html#Compiling-and-Injecting-Code" accesskey="7">Compiling and Injecting Code</a>:</td><td> </td><td align="left" valign="top">Compiling and injecting code in <small>GDB</small>
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</td></tr>
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</table>
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</body>
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</html>
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