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92 lines
3.3 KiB
HTML
92 lines
3.3 KiB
HTML
4 years ago
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<html lang="en">
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<head>
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<title>Reading Symbols - Untitled</title>
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<meta http-equiv="Content-Type" content="text/html">
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<meta name="description" content="Untitled">
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<meta name="generator" content="makeinfo 4.13">
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<link title="Top" rel="start" href="index.html#Top">
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<link rel="up" href="Symbols.html#Symbols" title="Symbols">
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<link rel="prev" href="Symbols.html#Symbols" title="Symbols">
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<link rel="next" href="Writing-Symbols.html#Writing-Symbols" title="Writing Symbols">
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<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
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<!--
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This file documents the BFD library.
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Copyright (C) 1991-2015 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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<meta http-equiv="Content-Style-Type" content="text/css">
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<style type="text/css"><!--
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pre.display { font-family:inherit }
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pre.format { font-family:inherit }
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pre.smalldisplay { font-family:inherit; font-size:smaller }
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pre.smallformat { font-family:inherit; font-size:smaller }
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pre.smallexample { font-size:smaller }
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pre.smalllisp { font-size:smaller }
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span.sc { font-variant:small-caps }
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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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--></style>
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</head>
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<body>
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<div class="node">
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<a name="Reading-Symbols"></a>
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<p>
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Next: <a rel="next" accesskey="n" href="Writing-Symbols.html#Writing-Symbols">Writing Symbols</a>,
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Previous: <a rel="previous" accesskey="p" href="Symbols.html#Symbols">Symbols</a>,
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Up: <a rel="up" accesskey="u" href="Symbols.html#Symbols">Symbols</a>
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<hr>
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</div>
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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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<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>
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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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</body></html>
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