<html lang="en"> <head> <title>i386-Directives - Using as</title> <meta http-equiv="Content-Type" content="text/html"> <meta name="description" content="Using as"> <meta name="generator" content="makeinfo 4.7"> <link title="Top" rel="start" href="index.html#Top"> <link rel="up" href="i386_002dDependent.html#i386_002dDependent" title="i386-Dependent"> <link rel="prev" href="i386_002dOptions.html#i386_002dOptions" title="i386-Options"> <link rel="next" href="i386_002dSyntax.html#i386_002dSyntax" title="i386-Syntax"> <link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> <!-- This file documents the GNU Assembler "as". Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 98, 99, 2000, 2001, 2002, 2006, 2007 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 1.1 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''. man end--> <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; } --></style> </head> <body> <div class="node"> <p> <a name="i386_002dDirectives"></a>Next: <a rel="next" accesskey="n" href="i386_002dSyntax.html#i386_002dSyntax">i386-Syntax</a>, Previous: <a rel="previous" accesskey="p" href="i386_002dOptions.html#i386_002dOptions">i386-Options</a>, Up: <a rel="up" accesskey="u" href="i386_002dDependent.html#i386_002dDependent">i386-Dependent</a> <hr><br> </div> <h4 class="subsection">9.13.2 x86 specific Directives</h4> <p><a name="index-machine-directives_002c-x86-840"></a><a name="index-x86-machine-directives-841"></a> <a name="index-_0040code_007blcomm_007d-directive_002c-COFF-842"></a> <dl><dt><code>.lcomm </code><var>symbol</var><code> , </code><var>length</var><code>[, </code><var>alignment</var><code>]</code><dd>Reserve <var>length</var> (an absolute expression) bytes for a local common denoted by <var>symbol</var>. The section and value of <var>symbol</var> are those of the new local common. The addresses are allocated in the bss section, so that at run-time the bytes start off zeroed. Since <var>symbol</var> is not declared global, it is normally not visible to <code>ld</code>. The optional third parameter, <var>alignment</var>, specifies the desired alignment of the symbol in the bss section. <p>This directive is only available for COFF based x86 targets. <!-- FIXME: Document other x86 specific directives ? Eg: .code16gcc, --> <!-- .largecomm --> </dl> </body></html>