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137 lines
4.8 KiB
HTML
translating by H-mudcup
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<meta http-equiv="Content-Type" content=
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"application/xhtml+xml; charset=utf-8" />
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<title>
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6.70. 关于调试符号
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</title>
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<link rel="stylesheet" type="text/css" href="../stylesheets/lfs.css" />
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<meta name="generator" content="DocBook XSL Stylesheets V1.78.1" />
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<body class="lfs" id="lfs-7.7-systemd">
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<div class="navheader">
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<h4>
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Linux From Scratch - Version 7.7-systemd
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</h4>
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<h3>
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第六章 安装基本的系统软件
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再次去除无用内容
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"Chapter 6. Installing Basic System Software">返回</a>
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</div>
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<div class="sect1" lang="en" xml:lang="en">
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<h1 class="sect1">
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<a id="ch-system-aboutdebug" name="ch-system-aboutdebug"></a>6.70.
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关于调试符号
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</h1>
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<p>
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默认情况下大多数程序和库的编译带有调试符号。（类似 <span class=
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"command"><strong>gcc</strong></span>'s <em class=
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"parameter"><code>-g</code></em> 选项。)这意味着当你调试一个包含调试信息的已编译
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的程序或库时，调试程序不仅能提供内存地址，还能提供变量和实例的名字。
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</p>
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<p>
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然而，包含这些调试符号明显的增大了程序或库。
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下面这个例子说明了这些符号有多么占地方：
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</p>
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<div class="itemizedlist">
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<ul>
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<li class="listitem">
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<p>
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一个有调试符号的二进制 <span class="command"><strong>bash</strong></span>
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: 1200 KB
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</p>
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</li>
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<li class="listitem">
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<p>
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一个无调试符号的二进制 <span class="command"><strong>bash</strong></span>
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: 480 KB
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</p>
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</li>
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<li class="listitem">
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<p>
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有调试符号的 Glibc 和 GCC 文件 (<code class="filename">/lib</code> 和
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<code class="filename">/usr/lib</code>):
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87 MB
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</p>
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</li>
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<li class="listitem">
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<p>
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无调试符号的 Glibc 和 GCC 文件: 16 MB
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</p>
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</li>
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</ul>
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</div>
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<p>
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大小可能会因为所使用的编译器和 C 语言库的不同而改变，
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但是当比较有无调试符号的程序时，
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but when comparing programs with and without debugging symbols, the
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difference will usually be a factor between two and five.
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</p>
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<p>
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因为大多数用户从来不会在他们的系统软件上使用调试器，没了这些调试符号可以省下很多磁盘空间。
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下一页将会告诉你如何剥离程序和库中所有的调试符号。
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</p>
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</div>
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<div class="navfooter">
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<div class="book">
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<div class="titlepage">
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<div class="author">
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<span class="firstname">翻译团队：<a href="http://lctt.github.io/" target="_blank">LCTT</a></span>
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<span class="surname">译者/校对：<a href="http://github.com/H-mudcup" target="_blank">H-mudcup</a>,<a href="http://github.com/wxy" target="_blank">wxy</a></span>
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</div>
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</div>
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</div>
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<ul>
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<li class="prev">
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<a accesskey="p" href="vim.html" title="Vim-7.4">上一页</a>
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<p>
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Vim-7.4
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</p>
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</li>
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<li class="next">
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<a accesskey="n" href="strippingagain.html" title=
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"Stripping Again">下一页</a>
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<p>
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再次去除无用内容
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</p>
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</li>
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<li class="up">
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<a accesskey="u" href="chapter06.html" title=
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"Chapter 6. Installing Basic System Software">返回</a>
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</li>
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<li class="home">
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<a accesskey="h" href="../index.html" title=
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"Linux From Scratch - Version 7.7-systemd">主页</a>
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