Output-Section-Constraint.html 3.8 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384
  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 Binutils)
  5. version 2.28.
  6. Copyright (C) 1991-2017 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 5.2, http://www.gnu.org/software/texinfo/ -->
  14. <head>
  15. <title>LD: Output Section Constraint</title>
  16. <meta name="description" content="LD: Output Section Constraint">
  17. <meta name="keywords" content="LD: Output Section Constraint">
  18. <meta name="resource-type" content="document">
  19. <meta name="distribution" content="global">
  20. <meta name="Generator" content="makeinfo">
  21. <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
  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. <!--
  30. a.summary-letter {text-decoration: none}
  31. blockquote.smallquotation {font-size: smaller}
  32. div.display {margin-left: 3.2em}
  33. div.example {margin-left: 3.2em}
  34. div.indentedblock {margin-left: 3.2em}
  35. div.lisp {margin-left: 3.2em}
  36. div.smalldisplay {margin-left: 3.2em}
  37. div.smallexample {margin-left: 3.2em}
  38. div.smallindentedblock {margin-left: 3.2em; font-size: smaller}
  39. div.smalllisp {margin-left: 3.2em}
  40. kbd {font-style:oblique}
  41. pre.display {font-family: inherit}
  42. pre.format {font-family: inherit}
  43. pre.menu-comment {font-family: serif}
  44. pre.menu-preformatted {font-family: serif}
  45. pre.smalldisplay {font-family: inherit; font-size: smaller}
  46. pre.smallexample {font-size: smaller}
  47. pre.smallformat {font-family: inherit; font-size: smaller}
  48. pre.smalllisp {font-size: smaller}
  49. span.nocodebreak {white-space:nowrap}
  50. span.nolinebreak {white-space:nowrap}
  51. span.roman {font-family:serif; font-weight:normal}
  52. span.sansserif {font-family:sans-serif; font-weight:normal}
  53. ul.no-bullet {list-style: none}
  54. -->
  55. </style>
  56. </head>
  57. <body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000">
  58. <a name="Output-Section-Constraint"></a>
  59. <div class="header">
  60. <p>
  61. 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>
  62. </div>
  63. <hr>
  64. <a name="Output-Section-Constraint-1"></a>
  65. <h4 class="subsubsection">3.6.8.5 Output Section Constraint</h4>
  66. <a name="index-ONLY_005fIF_005fRO"></a>
  67. <a name="index-ONLY_005fIF_005fRW"></a>
  68. <a name="index-constraints-on-output-sections"></a>
  69. <p>You can specify that an output section should only be created if all
  70. of its input sections are read-only or all of its input sections are
  71. read-write by using the keyword <code>ONLY_IF_RO</code> and
  72. <code>ONLY_IF_RW</code> respectively.
  73. </p>
  74. </body>
  75. </html>