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64<a name="Output-Section-Constraint"></a>
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66<p>
67Next: <a href="Output-Section-Region.html#Output-Section-Region" accesskey="n" rel="next">Output Section Region</a>, Previous: <a href="Forced-Input-Alignment.html#Forced-Input-Alignment" accesskey="p" rel="previous">Forced Input Alignment</a>, Up: <a href="Output-Section-Attributes.html#Output-Section-Attributes" accesskey="u" rel="up">Output Section Attributes</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="LD-Index.html#LD-Index" title="Index" rel="index">Index</a>]</p>
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70<a name="Output-Section-Constraint-1"></a>
71<h4 class="subsubsection">3.6.8.5 Output Section Constraint</h4>
72<a name="index-ONLY_005fIF_005fRO"></a>
73<a name="index-ONLY_005fIF_005fRW"></a>
74<a name="index-constraints-on-output-sections"></a>
75<p>You can specify that an output section should only be created if all
76of its input sections are read-only or all of its input sections are
77read-write by using the keyword <code>ONLY_IF_RO</code> and
78<code>ONLY_IF_RW</code> respectively.
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