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  1. <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
  2. <html>
  3. <!-- This file documents the GNU linker LD
  4. (GNU Arm Embedded Toolchain 10-2020-q4-major)
  5. version 2.35.1.
  6. Copyright (C) 1991-2020 Free Software Foundation, Inc.
  7. Permission is granted to copy, distribute and/or modify this document
  8. under the terms of the GNU Free Documentation License, Version 1.3
  9. or any later version published by the Free Software Foundation;
  10. with no Invariant Sections, with no Front-Cover Texts, and with no
  11. Back-Cover Texts. A copy of the license is included in the
  12. section entitled "GNU Free Documentation License". -->
  13. <!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ -->
  14. <head>
  15. <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
  16. <title>Output Section Constraint (LD)</title>
  17. <meta name="description" content="Output Section Constraint (LD)">
  18. <meta name="keywords" content="Output Section Constraint (LD)">
  19. <meta name="resource-type" content="document">
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  21. <meta name="Generator" content="makeinfo">
  22. <link href="index.html#Top" rel="start" title="Top">
  23. <link href="LD-Index.html#LD-Index" rel="index" title="LD Index">
  24. <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
  25. <link href="Output-Section-Attributes.html#Output-Section-Attributes" rel="up" title="Output Section Attributes">
  26. <link href="Output-Section-Region.html#Output-Section-Region" rel="next" title="Output Section Region">
  27. <link href="Forced-Input-Alignment.html#Forced-Input-Alignment" rel="prev" title="Forced Input Alignment">
  28. <style type="text/css">
  29. <!--
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  54. </style>
  55. </head>
  56. <body lang="en">
  57. <a name="Output-Section-Constraint"></a>
  58. <div class="header">
  59. <p>
  60. Next: <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="prev">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>
  61. </div>
  62. <hr>
  63. <a name="Output-Section-Constraint-1"></a>
  64. <h4 class="subsubsection">3.6.8.5 Output Section Constraint</h4>
  65. <a name="index-ONLY_005fIF_005fRO"></a>
  66. <a name="index-ONLY_005fIF_005fRW"></a>
  67. <a name="index-constraints-on-output-sections"></a>
  68. <p>You can specify that an output section should only be created if all
  69. of its input sections are read-only or all of its input sections are
  70. read-write by using the keyword <code>ONLY_IF_RO</code> and
  71. <code>ONLY_IF_RW</code> respectively.
  72. </p>
  73. </body>
  74. </html>