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  21. <title>Reading Symbols (Untitled Document)</title>
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  62. <a name="Reading-Symbols"></a>
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  64. <p>
  65. 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> &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>
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  68. <a name="Reading-symbols"></a>
  69. <h4 class="subsection">2.7.1 Reading symbols</h4>
  70. <p>There are two stages to reading a symbol table from a BFD:
  71. allocating storage, and the actual reading process. This is an
  72. excerpt from an application which reads the symbol table:
  73. </p>
  74. <div class="example">
  75. <pre class="example"> long storage_needed;
  76. asymbol **symbol_table;
  77. long number_of_symbols;
  78. long i;
  79. storage_needed = bfd_get_symtab_upper_bound (abfd);
  80. if (storage_needed &lt; 0)
  81. FAIL
  82. if (storage_needed == 0)
  83. return;
  84. symbol_table = xmalloc (storage_needed);
  85. ...
  86. number_of_symbols =
  87. bfd_canonicalize_symtab (abfd, symbol_table);
  88. if (number_of_symbols &lt; 0)
  89. FAIL
  90. for (i = 0; i &lt; number_of_symbols; i++)
  91. process_symbol (symbol_table[i]);
  92. </pre></div>
  93. <p>All storage for the symbols themselves is in an objalloc
  94. connected to the BFD; it is freed when the BFD is closed.
  95. </p>
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