<html lang="en"> <head> <title>Symbols - Using as</title> <meta http-equiv="Content-Type" content="text/html"> <meta name="description" content="Using as"> <meta name="generator" content="makeinfo 4.13"> <link title="Top" rel="start" href="index.html#Top"> <link rel="prev" href="Sections.html#Sections" title="Sections"> <link rel="next" href="Expressions.html#Expressions" title="Expressions"> <link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> <!-- This file documents the GNU Assembler "as". Copyright (C) 1991-2015 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 no Invariant Sections, with no Front-Cover Texts, and with no Back-Cover Texts. A copy of the license is included in the section entitled ``GNU Free Documentation License''. --> <meta http-equiv="Content-Style-Type" content="text/css"> <style type="text/css"><!-- pre.display { font-family:inherit } pre.format { font-family:inherit } pre.smalldisplay { font-family:inherit; font-size:smaller } pre.smallformat { font-family:inherit; font-size:smaller } pre.smallexample { font-size:smaller } pre.smalllisp { font-size:smaller } span.sc { font-variant:small-caps } span.roman { font-family:serif; font-weight:normal; } span.sansserif { font-family:sans-serif; font-weight:normal; } --></style> </head> <body> <div class="node"> <a name="Symbols"></a> <p> Next: <a rel="next" accesskey="n" href="Expressions.html#Expressions">Expressions</a>, Previous: <a rel="previous" accesskey="p" href="Sections.html#Sections">Sections</a>, Up: <a rel="up" accesskey="u" href="index.html#Top">Top</a> <hr> </div> <h2 class="chapter">5 Symbols</h2> <p><a name="index-symbols-208"></a>Symbols are a central concept: the programmer uses symbols to name things, the linker uses symbols to link, and the debugger uses symbols to debug. <blockquote> <a name="index-debuggers_002c-and-symbol-order-209"></a><em>Warning:</em> <samp><span class="command">as</span></samp> does not place symbols in the object file in the same order they were declared. This may break some debuggers. </blockquote> <ul class="menu"> <li><a accesskey="1" href="Labels.html#Labels">Labels</a>: Labels <li><a accesskey="2" href="Setting-Symbols.html#Setting-Symbols">Setting Symbols</a>: Giving Symbols Other Values <li><a accesskey="3" href="Symbol-Names.html#Symbol-Names">Symbol Names</a>: Symbol Names <li><a accesskey="4" href="Dot.html#Dot">Dot</a>: The Special Dot Symbol <li><a accesskey="5" href="Symbol-Attributes.html#Symbol-Attributes">Symbol Attributes</a>: Symbol Attributes </ul> </body></html>