119 lines
4.4 KiB
HTML
119 lines
4.4 KiB
HTML
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<!-- This file documents the BFD library.
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Copyright (C) 1991-2016 Free Software Foundation, Inc.
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.3 or
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any later version published by the Free Software Foundation; with the
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Invariant Sections being "GNU General Public License" and "Funding
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Free Software", the Front-Cover texts being (a) (see below), and with
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the Back-Cover Texts being (b) (see below). A copy of the license is
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included in the section entitled "GNU Free Documentation License".
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(a) The FSF's Front-Cover Text is:
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A GNU Manual
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(b) The FSF's Back-Cover Text is:
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You have freedom to copy and modify this GNU Manual, like GNU
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software. Copies published by the Free Software Foundation raise
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funds for GNU development. -->
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<!-- Created by GNU Texinfo 5.2, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>Untitled Document: Reading Symbols</title>
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<meta name="description" content="Untitled Document: Reading Symbols">
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<meta name="keywords" content="Untitled Document: Reading Symbols">
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<meta name="resource-type" content="document">
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<meta name="distribution" content="global">
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<meta name="Generator" content="makeinfo">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<link href="index.html#Top" rel="start" title="Top">
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<link href="BFD-Index.html#BFD-Index" rel="index" title="BFD Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Symbols.html#Symbols" rel="up" title="Symbols">
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<link href="Writing-Symbols.html#Writing-Symbols" rel="next" title="Writing Symbols">
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<link href="Symbols.html#Symbols" rel="prev" title="Symbols">
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<style type="text/css">
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<!--
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a.summary-letter {text-decoration: none}
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div.display {margin-left: 3.2em}
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div.example {margin-left: 3.2em}
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div.lisp {margin-left: 3.2em}
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kbd {font-style:oblique}
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pre.display {font-family: inherit}
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pre.format {font-family: inherit}
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pre.menu-comment {font-family: serif}
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pre.menu-preformatted {font-family: serif}
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pre.smalldisplay {font-family: inherit; font-size: smaller}
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pre.smallexample {font-size: smaller}
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pre.smallformat {font-family: inherit; font-size: smaller}
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pre.smalllisp {font-size: smaller}
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span.nocodebreak {white-space:nowrap}
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span.nolinebreak {white-space:nowrap}
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span.roman {font-family:serif; font-weight:normal}
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span.sansserif {font-family:sans-serif; font-weight:normal}
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ul.no-bullet {list-style: none}
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-->
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</style>
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</head>
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<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000">
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<a name="Reading-Symbols"></a>
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<div class="header">
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<p>
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Next: <a href="Writing-Symbols.html#Writing-Symbols" accesskey="n" rel="next">Writing Symbols</a>, Previous: <a href="Symbols.html#Symbols" accesskey="p" rel="prev">Symbols</a>, Up: <a href="Symbols.html#Symbols" accesskey="u" rel="up">Symbols</a> [<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>
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</div>
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<hr>
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<a name="Reading-symbols"></a>
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<h4 class="subsection">2.7.1 Reading symbols</h4>
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<p>There are two stages to reading a symbol table from a BFD:
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allocating storage, and the actual reading process. This is an
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excerpt from an application which reads the symbol table:
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</p>
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<div class="example">
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<pre class="example"> long storage_needed;
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asymbol **symbol_table;
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long number_of_symbols;
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long i;
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storage_needed = bfd_get_symtab_upper_bound (abfd);
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if (storage_needed < 0)
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FAIL
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if (storage_needed == 0)
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return;
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symbol_table = xmalloc (storage_needed);
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...
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number_of_symbols =
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bfd_canonicalize_symtab (abfd, symbol_table);
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if (number_of_symbols < 0)
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FAIL
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for (i = 0; i < number_of_symbols; i++)
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process_symbol (symbol_table[i]);
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</pre></div>
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<p>All storage for the symbols themselves is in an objalloc
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connected to the BFD; it is freed when the BFD is closed.
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</p>
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</body>
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</html>
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