<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <!-- This file documents the GNU Assembler "as". Copyright (C) 1991-2020 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". --> <!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ --> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>Symbol Attributes (Using as)</title> <meta name="description" content="Symbol Attributes (Using as)"> <meta name="keywords" content="Symbol Attributes (Using as)"> <meta name="resource-type" content="document"> <meta name="distribution" content="global"> <meta name="Generator" content="makeinfo"> <link href="index.html#Top" rel="start" title="Top"> <link href="AS-Index.html#AS-Index" rel="index" title="AS Index"> <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> <link href="Symbols.html#Symbols" rel="up" title="Symbols"> <link href="Symbol-Value.html#Symbol-Value" rel="next" title="Symbol Value"> <link href="Dot.html#Dot" rel="prev" title="Dot"> <style type="text/css"> <!-- a.summary-letter {text-decoration: none} blockquote.indentedblock {margin-right: 0em} blockquote.smallindentedblock {margin-right: 0em; font-size: smaller} blockquote.smallquotation {font-size: smaller} div.display {margin-left: 3.2em} div.example {margin-left: 3.2em} div.lisp {margin-left: 3.2em} div.smalldisplay {margin-left: 3.2em} div.smallexample {margin-left: 3.2em} 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.nolinebreak {white-space: nowrap} span.roman {font-family: initial; font-weight: normal} span.sansserif {font-family: sans-serif; font-weight: normal} ul.no-bullet {list-style: none} --> </style> </head> <body lang="en"> <a name="Symbol-Attributes"></a> <div class="header"> <p> Previous: <a href="Dot.html#Dot" accesskey="p" rel="prev">Dot</a>, Up: <a href="Symbols.html#Symbols" accesskey="u" rel="up">Symbols</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="AS-Index.html#AS-Index" title="Index" rel="index">Index</a>]</p> </div> <hr> <a name="Symbol-Attributes-1"></a> <h3 class="section">5.5 Symbol Attributes</h3> <a name="index-symbol-attributes"></a> <a name="index-attributes_002c-symbol"></a> <p>Every symbol has, as well as its name, the attributes “Value” and “Type”. Depending on output format, symbols can also have auxiliary attributes. </p> <p>If you use a symbol without defining it, <code>as</code> assumes zero for all these attributes, and probably won’t warn you. This makes the symbol an externally defined symbol, which is generally what you would want. </p> <table class="menu" border="0" cellspacing="0"> <tr><td align="left" valign="top">• <a href="Symbol-Value.html#Symbol-Value" accesskey="1">Symbol Value</a>:</td><td> </td><td align="left" valign="top">Value </td></tr> <tr><td align="left" valign="top">• <a href="Symbol-Type.html#Symbol-Type" accesskey="2">Symbol Type</a>:</td><td> </td><td align="left" valign="top">Type </td></tr> <tr><td align="left" valign="top">• <a href="a_002eout-Symbols.html#a_002eout-Symbols" accesskey="3">a.out Symbols</a>:</td><td> </td><td align="left" valign="top">Symbol Attributes: <code>a.out</code> </td></tr> <tr><td align="left" valign="top">• <a href="COFF-Symbols.html#COFF-Symbols" accesskey="4">COFF Symbols</a>:</td><td> </td><td align="left" valign="top">Symbol Attributes for COFF </td></tr> <tr><td align="left" valign="top">• <a href="SOM-Symbols.html#SOM-Symbols" accesskey="5">SOM Symbols</a>:</td><td> </td><td align="left" valign="top">Symbol Attributes for SOM </td></tr> </table> </body> </html>