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toolchain-gcc-arm-embedded/share/doc/gcc-arm-none-eabi/html/as.html/COFF-Symbols.html

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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 Assembler "as".

  4. 

  5. Copyright (C) 1991-2020 Free Software Foundation, Inc.

  6. 

  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.  -->

  14. <!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ -->

  15. <head>

  16. <meta http-equiv="Content-Type" content="text/html; charset=utf-8">

  17. <title>COFF Symbols (Using as)</title>

  18. 

  19. <meta name="description" content="COFF Symbols (Using as)">

  20. <meta name="keywords" content="COFF Symbols (Using as)">

  21. <meta name="resource-type" content="document">

  22. <meta name="distribution" content="global">

  23. <meta name="Generator" content="makeinfo">

  24. <link href="index.html#Top" rel="start" title="Top">

  25. <link href="AS-Index.html#AS-Index" rel="index" title="AS Index">

  26. <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">

  27. <link href="Symbol-Attributes.html#Symbol-Attributes" rel="up" title="Symbol Attributes">

  28. <link href="SOM-Symbols.html#SOM-Symbols" rel="next" title="SOM Symbols">

  29. <link href="Symbol-Other.html#Symbol-Other" rel="prev" title="Symbol Other">

  30. <style type="text/css">

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  56. </style>

  57. 

  58. 

  59. </head>

  60. 

  61. <body lang="en">

  62. <a name="COFF-Symbols"></a>

  63. <div class="header">

  64. <p>

  65. Next: <a href="SOM-Symbols.html#SOM-Symbols" accesskey="n" rel="next">SOM Symbols</a>, Previous: <a href="a_002eout-Symbols.html#a_002eout-Symbols" accesskey="p" rel="prev">a.out Symbols</a>, Up: <a href="Symbol-Attributes.html#Symbol-Attributes" accesskey="u" rel="up">Symbol Attributes</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="AS-Index.html#AS-Index" title="Index" rel="index">Index</a>]</p>

  66. </div>

  67. <hr>

  68. <a name="Symbol-Attributes-for-COFF"></a>

  69. <h4 class="subsection">5.5.4 Symbol Attributes for COFF</h4>

  70. 

  71. <a name="index-COFF-symbol-attributes"></a>

  72. <a name="index-symbol-attributes_002c-COFF"></a>

  73. 

  74. <p>The COFF format supports a multitude of auxiliary symbol attributes;

  75. like the primary symbol attributes, they are set between <code>.def</code> and

  76. <code>.endef</code> directives.

  77. </p>

  78. <a name="Primary-Attributes"></a>

  79. <h4 class="subsubsection">5.5.4.1 Primary Attributes</h4>

  80. 

  81. <a name="index-primary-attributes_002c-COFF-symbols"></a>

  82. <p>The symbol name is set with <code>.def</code>; the value and type,

  83. respectively, with <code>.val</code> and <code>.type</code>.

  84. </p>

  85. <a name="Auxiliary-Attributes"></a>

  86. <h4 class="subsubsection">5.5.4.2 Auxiliary Attributes</h4>

  87. 

  88. <a name="index-auxiliary-attributes_002c-COFF-symbols"></a>

  89. <p>The <code>as</code> directives <code>.dim</code>, <code>.line</code>, <code>.scl</code>,

  90. <code>.size</code>, <code>.tag</code>, and <code>.weak</code> can generate auxiliary symbol

  91. table information for COFF.

  92. </p>

  93. 

  94. 

  95. 

  96. </body>

  97. </html>