1<html lang="en"> 2<head> 3<title>Output Section Constraint - Untitled</title> 4<meta http-equiv="Content-Type" content="text/html"> 5<meta name="description" content="Untitled"> 6<meta name="generator" content="makeinfo 4.13"> 7<link title="Top" rel="start" href="index.html#Top"> 8<link rel="up" href="Output-Section-Attributes.html#Output-Section-Attributes" title="Output Section Attributes"> 9<link rel="prev" href="Forced-Input-Alignment.html#Forced-Input-Alignment" title="Forced Input Alignment"> 10<link rel="next" href="Output-Section-Region.html#Output-Section-Region" title="Output Section Region"> 11<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> 12<!-- 13This file documents the GNU linker LD 14(Sourcery CodeBench Lite 2011.09-69) 15version 2.21.53. 16 17Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 182001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc. 19 20Permission is granted to copy, distribute and/or modify this document 21under the terms of the GNU Free Documentation License, Version 1.3 22or any later version published by the Free Software Foundation; 23with no Invariant Sections, with no Front-Cover Texts, and with no 24Back-Cover Texts. A copy of the license is included in the 25section entitled ``GNU Free Documentation License''.--> 26<meta http-equiv="Content-Style-Type" content="text/css"> 27<style type="text/css"><!-- 28 pre.display { font-family:inherit } 29 pre.format { font-family:inherit } 30 pre.smalldisplay { font-family:inherit; font-size:smaller } 31 pre.smallformat { font-family:inherit; font-size:smaller } 32 pre.smallexample { font-size:smaller } 33 pre.smalllisp { font-size:smaller } 34 span.sc { font-variant:small-caps } 35 span.roman { font-family:serif; font-weight:normal; } 36 span.sansserif { font-family:sans-serif; font-weight:normal; } 37--></style> 38<link rel="stylesheet" type="text/css" href="../cs.css"> 39</head> 40<body> 41<div class="node"> 42<a name="Output-Section-Constraint"></a> 43<p> 44Next: <a rel="next" accesskey="n" href="Output-Section-Region.html#Output-Section-Region">Output Section Region</a>, 45Previous: <a rel="previous" accesskey="p" href="Forced-Input-Alignment.html#Forced-Input-Alignment">Forced Input Alignment</a>, 46Up: <a rel="up" accesskey="u" href="Output-Section-Attributes.html#Output-Section-Attributes">Output Section Attributes</a> 47<hr> 48</div> 49 50<h5 class="subsubsection">3.6.8.5 Output Section Constraint</h5> 51 52<p><a name="index-ONLY_005fIF_005fRO-460"></a><a name="index-ONLY_005fIF_005fRW-461"></a><a name="index-constraints-on-output-sections-462"></a>You can specify that an output section should only be created if all 53of its input sections are read-only or all of its input sections are 54read-write by using the keyword <code>ONLY_IF_RO</code> and 55<code>ONLY_IF_RW</code> respectively. 56 57 </body></html> 58 59