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74 lines
3.0 KiB
HTML
74 lines
3.0 KiB
HTML
<html lang="en">
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<title>Size - Using as</title>
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<link rel="up" href="Pseudo-Ops.html#Pseudo-Ops" title="Pseudo Ops">
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<!--
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This file documents the GNU Assembler "as".
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Copyright (C) 1991-2015 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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</head>
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<body>
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<div class="node">
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<a name="Size"></a>
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<p>
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Next: <a rel="next" accesskey="n" href="Skip.html#Skip">Skip</a>,
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Previous: <a rel="previous" accesskey="p" href="Single.html#Single">Single</a>,
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Up: <a rel="up" accesskey="u" href="Pseudo-Ops.html#Pseudo-Ops">Pseudo Ops</a>
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<hr>
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</div>
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<h3 class="section">7.82 <code>.size</code></h3>
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<p>This directive is used to set the size associated with a symbol.
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<!-- only print the extra heading if both COFF and ELF are set -->
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<h4 class="subheading">COFF Version</h4>
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<p><a name="index-g_t_0040code_007bsize_007d-directive-_0028COFF-version_0029-463"></a>For COFF targets, the <code>.size</code> directive is only permitted inside
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<code>.def</code>/<code>.endef</code> pairs. It is used like this:
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<pre class="smallexample"> .size <var>expression</var>
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</pre>
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<!-- only print the extra heading if both COFF and ELF are set -->
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<h4 class="subheading">ELF Version</h4>
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<p><a name="index-g_t_0040code_007bsize_007d-directive-_0028ELF-version_0029-464"></a>For ELF targets, the <code>.size</code> directive is used like this:
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<pre class="smallexample"> .size <var>name</var> , <var>expression</var>
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</pre>
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<p>This directive sets the size associated with a symbol <var>name</var>.
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The size in bytes is computed from <var>expression</var> which can make use of label
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arithmetic. This directive is typically used to set the size of function
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symbols.
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</body></html>
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