70 lines
2.9 KiB
HTML
70 lines
2.9 KiB
HTML
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<html lang="en">
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<head>
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<title>Symbol Attributes - Using as</title>
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<meta http-equiv="Content-Type" content="text/html">
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<meta name="description" content="Using as">
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<meta name="generator" content="makeinfo 4.13">
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<link title="Top" rel="start" href="index.html#Top">
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<link rel="up" href="Symbols.html#Symbols" title="Symbols">
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<link rel="prev" href="Dot.html#Dot" title="Dot">
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<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
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<!--
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This file documents the GNU Assembler "as".
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Copyright (C) 1991-2019 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
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or any later version published by the Free Software Foundation;
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with no Invariant Sections, with no Front-Cover Texts, and with no
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Back-Cover Texts. A copy of the license is included in the
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section entitled ``GNU Free Documentation License''.
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-->
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<meta http-equiv="Content-Style-Type" content="text/css">
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<style type="text/css"><!--
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pre.display { font-family:inherit }
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pre.format { font-family:inherit }
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pre.smalldisplay { font-family:inherit; font-size:smaller }
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pre.smallformat { font-family:inherit; font-size:smaller }
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pre.smallexample { font-size:smaller }
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pre.smalllisp { font-size:smaller }
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span.sc { font-variant:small-caps }
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span.roman { font-family:serif; font-weight:normal; }
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span.sansserif { font-family:sans-serif; font-weight:normal; }
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--></style>
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</head>
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<body>
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<div class="node">
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<a name="Symbol-Attributes"></a>
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<p>
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Previous: <a rel="previous" accesskey="p" href="Dot.html#Dot">Dot</a>,
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Up: <a rel="up" accesskey="u" href="Symbols.html#Symbols">Symbols</a>
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<hr>
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</div>
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<h3 class="section">5.5 Symbol Attributes</h3>
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<p><a name="index-symbol-attributes-227"></a><a name="index-attributes_002c-symbol-228"></a>Every symbol has, as well as its name, the attributes “Value” and
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“Type”. Depending on output format, symbols can also have auxiliary
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attributes.
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<p>If you use a symbol without defining it, <samp><span class="command">as</span></samp> assumes zero for
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all these attributes, and probably won't warn you. This makes the
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symbol an externally defined symbol, which is generally what you
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would want.
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<ul class="menu">
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<li><a accesskey="1" href="Symbol-Value.html#Symbol-Value">Symbol Value</a>: Value
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<li><a accesskey="2" href="Symbol-Type.html#Symbol-Type">Symbol Type</a>: Type
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<li><a accesskey="3" href="a_002eout-Symbols.html#a_002eout-Symbols">a.out Symbols</a>: Symbol Attributes: <code>a.out</code>
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<li><a accesskey="4" href="COFF-Symbols.html#COFF-Symbols">COFF Symbols</a>: Symbol Attributes for COFF
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<li><a accesskey="5" href="SOM-Symbols.html#SOM-Symbols">SOM Symbols</a>: Symbol Attributes for SOM
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</ul>
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</body></html>
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