visus
/
toolchain-gcc-arm-embedded
Watch 1
Star 0
Fork 0
Code Issues 0 Pull Requests 0 Releases 0 Wiki Activity
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
2 Commits
1 Branch
Tree: 898a39b5ab
Branches Tags
${ item.name }
Create branch ${ searchTerm }
from '898a39b5ab'
${ noResults }
toolchain-gcc-arm-embedded/share/doc/gcc-arm-none-eabi/html/bfd.html/Symbols.html

126 lines
6.2KB
Raw Blame History 

  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 BFD library.

  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 or

  9. any later version published by the Free Software Foundation; with the

  10. Invariant Sections being "GNU General Public License" and "Funding

  11. Free Software", the Front-Cover texts being (a) (see below), and with

  12. the Back-Cover Texts being (b) (see below).  A copy of the license is

  13. included in the section entitled "GNU Free Documentation License".

  14. 

  15. (a) The FSF's Front-Cover Text is:

  16. 

  17. A GNU Manual

  18. 

  19. (b) The FSF's Back-Cover Text is:

  20. 

  21. You have freedom to copy and modify this GNU Manual, like GNU

  22.      software.  Copies published by the Free Software Foundation raise

  23.      funds for GNU development. -->

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

  25. <head>

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

  27. <title>Symbols (Untitled Document)</title>

  28. 

  29. <meta name="description" content="Symbols (Untitled Document)">

  30. <meta name="keywords" content="Symbols (Untitled Document)">

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

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

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

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

  35. <link href="BFD-Index.html#BFD-Index" rel="index" title="BFD Index">

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

  37. <link href="BFD-front-end.html#BFD-front-end" rel="up" title="BFD front end">

  38. <link href="Reading-Symbols.html#Reading-Symbols" rel="next" title="Reading Symbols">

  39. <link href="section-prototypes.html#section-prototypes" rel="prev" title="section prototypes">

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

  41. <!--

  42. a.summary-letter {text-decoration: none}

  43. blockquote.indentedblock {margin-right: 0em}

  44. blockquote.smallindentedblock {margin-right: 0em; font-size: smaller}

  45. blockquote.smallquotation {font-size: smaller}

  46. div.display {margin-left: 3.2em}

  47. div.example {margin-left: 3.2em}

  48. div.lisp {margin-left: 3.2em}

  49. div.smalldisplay {margin-left: 3.2em}

  50. div.smallexample {margin-left: 3.2em}

  51. div.smalllisp {margin-left: 3.2em}

  52. kbd {font-style: oblique}

  53. pre.display {font-family: inherit}

  54. pre.format {font-family: inherit}

  55. pre.menu-comment {font-family: serif}

  56. pre.menu-preformatted {font-family: serif}

  57. pre.smalldisplay {font-family: inherit; font-size: smaller}

  58. pre.smallexample {font-size: smaller}

  59. pre.smallformat {font-family: inherit; font-size: smaller}

  60. pre.smalllisp {font-size: smaller}

  61. span.nolinebreak {white-space: nowrap}

  62. span.roman {font-family: initial; font-weight: normal}

  63. span.sansserif {font-family: sans-serif; font-weight: normal}

  64. ul.no-bullet {list-style: none}

  65. -->

  66. </style>

  67. 

  68. 

  69. </head>

  70. 

  71. <body lang="en">

  72. <a name="Symbols"></a>

  73. <div class="header">

  74. <p>

  75. Next: <a href="Archives.html#Archives" accesskey="n" rel="next">Archives</a>, Previous: <a href="Sections.html#Sections" accesskey="p" rel="prev">Sections</a>, Up: <a href="BFD-front-end.html#BFD-front-end" accesskey="u" rel="up">BFD front end</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="BFD-Index.html#BFD-Index" title="Index" rel="index">Index</a>]</p>

  76. </div>

  77. <hr>

  78. <a name="Symbols-1"></a>

  79. <h3 class="section">2.7 Symbols</h3>

  80. <p>BFD tries to maintain as much symbol information as it can when

  81. it moves information from file to file. BFD passes information

  82. to applications though the <code>asymbol</code> structure. When the

  83. application requests the symbol table, BFD reads the table in

  84. the native form and translates parts of it into the internal

  85. format. To maintain more than the information passed to

  86. applications, some targets keep some information &ldquo;behind the

  87. scenes&rdquo; in a structure only the particular back end knows

  88. about. For example, the coff back end keeps the original

  89. symbol table structure as well as the canonical structure when

  90. a BFD is read in. On output, the coff back end can reconstruct

  91. the output symbol table so that no information is lost, even

  92. information unique to coff which BFD doesn&rsquo;t know or

  93. understand. If a coff symbol table were read, but were written

  94. through an a.out back end, all the coff specific information

  95. would be lost. The symbol table of a BFD

  96. is not necessarily read in until a canonicalize request is

  97. made. Then the BFD back end fills in a table provided by the

  98. application with pointers to the canonical information.  To

  99. output symbols, the application provides BFD with a table of

  100. pointers to pointers to <code>asymbol</code>s. This allows applications

  101. like the linker to output a symbol as it was read, since the &ldquo;behind

  102. the scenes&rdquo; information will be still available.

  103. </p><table class="menu" border="0" cellspacing="0">

  104. <tr><td align="left" valign="top">&bull; <a href="Reading-Symbols.html#Reading-Symbols" accesskey="1">Reading Symbols</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">

  105. </td></tr>

  106. <tr><td align="left" valign="top">&bull; <a href="Writing-Symbols.html#Writing-Symbols" accesskey="2">Writing Symbols</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">

  107. </td></tr>

  108. <tr><td align="left" valign="top">&bull; <a href="Mini-Symbols.html#Mini-Symbols" accesskey="3">Mini Symbols</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">

  109. </td></tr>

  110. <tr><td align="left" valign="top">&bull; <a href="typedef-asymbol.html#typedef-asymbol" accesskey="4">typedef asymbol</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">

  111. </td></tr>

  112. <tr><td align="left" valign="top">&bull; <a href="symbol-handling-functions.html#symbol-handling-functions" accesskey="5">symbol handling functions</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">

  113. </td></tr>

  114. </table>

  115. 

  116. <hr>

  117. <div class="header">

  118. <p>

  119. Next: <a href="Archives.html#Archives" accesskey="n" rel="next">Archives</a>, Previous: <a href="Sections.html#Sections" accesskey="p" rel="prev">Sections</a>, Up: <a href="BFD-front-end.html#BFD-front-end" accesskey="u" rel="up">BFD front end</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="BFD-Index.html#BFD-Index" title="Index" rel="index">Index</a>]</p>

  120. </div>

  121. 

  122. 

  123. 

  124. </body>

  125. </html>