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<a name="symbol-handling-functions"></a>
<div class="header">
<p>
Previous: <a href="typedef-asymbol.html#typedef-asymbol" accesskey="p" rel="prev">typedef asymbol</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>
</div>
<hr>
<a name="Symbol-handling-functions"></a>
<h4 class="subsection">2.7.5 Symbol handling functions</h4>


<a name="index-bfd_005fget_005fsymtab_005fupper_005fbound"></a>
<a name="bfd_005fget_005fsymtab_005fupper_005fbound"></a>
<h4 class="subsubsection">2.7.5.1 <code>bfd_get_symtab_upper_bound</code></h4>
<p><strong>Description</strong><br>
Return the number of bytes required to store a vector of pointers
to <code>asymbols</code> for all the symbols in the BFD <var>abfd</var>,
including a terminal NULL pointer. If there are no symbols in
the BFD, then return 0.  If an error occurs, return -1.
</p><div class="example">
<pre class="example">#define bfd_get_symtab_upper_bound(abfd) \
     BFD_SEND (abfd, _bfd_get_symtab_upper_bound, (abfd))

</pre></div>

<a name="index-bfd_005fis_005flocal_005flabel"></a>
<a name="bfd_005fis_005flocal_005flabel"></a>
<h4 class="subsubsection">2.7.5.2 <code>bfd_is_local_label</code></h4>
<p><strong>Synopsis</strong>
</p><div class="example">
<pre class="example">bfd_boolean bfd_is_local_label (bfd *abfd, asymbol *sym);
</pre></div>
<p><strong>Description</strong><br>
Return TRUE if the given symbol <var>sym</var> in the BFD <var>abfd</var> is
a compiler generated local label, else return FALSE.
</p>
<a name="index-bfd_005fis_005flocal_005flabel_005fname"></a>
<a name="bfd_005fis_005flocal_005flabel_005fname"></a>
<h4 class="subsubsection">2.7.5.3 <code>bfd_is_local_label_name</code></h4>
<p><strong>Synopsis</strong>
</p><div class="example">
<pre class="example">bfd_boolean bfd_is_local_label_name (bfd *abfd, const char *name);
</pre></div>
<p><strong>Description</strong><br>
Return TRUE if a symbol with the name <var>name</var> in the BFD
<var>abfd</var> is a compiler generated local label, else return
FALSE.  This just checks whether the name has the form of a
local label.
</p><div class="example">
<pre class="example">#define bfd_is_local_label_name(abfd, name) \
  BFD_SEND (abfd, _bfd_is_local_label_name, (abfd, name))

</pre></div>

<a name="index-bfd_005fis_005ftarget_005fspecial_005fsymbol"></a>
<a name="bfd_005fis_005ftarget_005fspecial_005fsymbol"></a>
<h4 class="subsubsection">2.7.5.4 <code>bfd_is_target_special_symbol</code></h4>
<p><strong>Synopsis</strong>
</p><div class="example">
<pre class="example">bfd_boolean bfd_is_target_special_symbol (bfd *abfd, asymbol *sym);
</pre></div>
<p><strong>Description</strong><br>
Return TRUE iff a symbol <var>sym</var> in the BFD <var>abfd</var> is something
special to the particular target represented by the BFD.  Such symbols
should normally not be mentioned to the user.
</p><div class="example">
<pre class="example">#define bfd_is_target_special_symbol(abfd, sym) \
  BFD_SEND (abfd, _bfd_is_target_special_symbol, (abfd, sym))

</pre></div>

<a name="index-bfd_005fcanonicalize_005fsymtab"></a>
<a name="bfd_005fcanonicalize_005fsymtab"></a>
<h4 class="subsubsection">2.7.5.5 <code>bfd_canonicalize_symtab</code></h4>
<p><strong>Description</strong><br>
Read the symbols from the BFD <var>abfd</var>, and fills in
the vector <var>location</var> with pointers to the symbols and
a trailing NULL.
Return the actual number of symbol pointers, not
including the NULL.
</p><div class="example">
<pre class="example">#define bfd_canonicalize_symtab(abfd, location) \
  BFD_SEND (abfd, _bfd_canonicalize_symtab, (abfd, location))

</pre></div>

<a name="index-bfd_005fset_005fsymtab"></a>
<a name="bfd_005fset_005fsymtab"></a>
<h4 class="subsubsection">2.7.5.6 <code>bfd_set_symtab</code></h4>
<p><strong>Synopsis</strong>
</p><div class="example">
<pre class="example">bfd_boolean bfd_set_symtab
   (bfd *abfd, asymbol **location, unsigned int count);
</pre></div>
<p><strong>Description</strong><br>
Arrange that when the output BFD <var>abfd</var> is closed,
the table <var>location</var> of <var>count</var> pointers to symbols
will be written.
</p>
<a name="index-bfd_005fprint_005fsymbol_005fvandf"></a>
<a name="bfd_005fprint_005fsymbol_005fvandf"></a>
<h4 class="subsubsection">2.7.5.7 <code>bfd_print_symbol_vandf</code></h4>
<p><strong>Synopsis</strong>
</p><div class="example">
<pre class="example">void bfd_print_symbol_vandf (bfd *abfd, void *file, asymbol *symbol);
</pre></div>
<p><strong>Description</strong><br>
Print the value and flags of the <var>symbol</var> supplied to the
stream <var>file</var>.
</p>
<a name="index-bfd_005fmake_005fempty_005fsymbol"></a>
<a name="bfd_005fmake_005fempty_005fsymbol"></a>
<h4 class="subsubsection">2.7.5.8 <code>bfd_make_empty_symbol</code></h4>
<p><strong>Description</strong><br>
Create a new <code>asymbol</code> structure for the BFD <var>abfd</var>
and return a pointer to it.
</p>
<p>This routine is necessary because each back end has private
information surrounding the <code>asymbol</code>. Building your own
<code>asymbol</code> and pointing to it will not create the private
information, and will cause problems later on.
</p><div class="example">
<pre class="example">#define bfd_make_empty_symbol(abfd) \
  BFD_SEND (abfd, _bfd_make_empty_symbol, (abfd))

</pre></div>

<a name="index-_005fbfd_005fgeneric_005fmake_005fempty_005fsymbol"></a>
<a name="g_t_005fbfd_005fgeneric_005fmake_005fempty_005fsymbol"></a>
<h4 class="subsubsection">2.7.5.9 <code>_bfd_generic_make_empty_symbol</code></h4>
<p><strong>Synopsis</strong>
</p><div class="example">
<pre class="example">asymbol *_bfd_generic_make_empty_symbol (bfd *);
</pre></div>
<p><strong>Description</strong><br>
Create a new <code>asymbol</code> structure for the BFD <var>abfd</var>
and return a pointer to it.  Used by core file routines,
binary back-end and anywhere else where no private info
is needed.
</p>
<a name="index-bfd_005fmake_005fdebug_005fsymbol"></a>
<a name="bfd_005fmake_005fdebug_005fsymbol"></a>
<h4 class="subsubsection">2.7.5.10 <code>bfd_make_debug_symbol</code></h4>
<p><strong>Description</strong><br>
Create a new <code>asymbol</code> structure for the BFD <var>abfd</var>,
to be used as a debugging symbol.  Further details of its use have
yet to be worked out.
</p><div class="example">
<pre class="example">#define bfd_make_debug_symbol(abfd,ptr,size) \
  BFD_SEND (abfd, _bfd_make_debug_symbol, (abfd, ptr, size))

</pre></div>

<a name="index-bfd_005fdecode_005fsymclass"></a>
<a name="bfd_005fdecode_005fsymclass"></a>
<h4 class="subsubsection">2.7.5.11 <code>bfd_decode_symclass</code></h4>
<p><strong>Description</strong><br>
Return a character corresponding to the symbol
class of <var>symbol</var>, or &rsquo;?&rsquo; for an unknown class.
</p>
<p><strong>Synopsis</strong>
</p><div class="example">
<pre class="example">int bfd_decode_symclass (asymbol *symbol);
</pre></div>
<a name="index-bfd_005fis_005fundefined_005fsymclass"></a>
<a name="bfd_005fis_005fundefined_005fsymclass"></a>
<h4 class="subsubsection">2.7.5.12 <code>bfd_is_undefined_symclass</code></h4>
<p><strong>Description</strong><br>
Returns non-zero if the class symbol returned by
bfd_decode_symclass represents an undefined symbol.
Returns zero otherwise.
</p>
<p><strong>Synopsis</strong>
</p><div class="example">
<pre class="example">bfd_boolean bfd_is_undefined_symclass (int symclass);
</pre></div>
<a name="index-bfd_005fsymbol_005finfo"></a>
<a name="bfd_005fsymbol_005finfo"></a>
<h4 class="subsubsection">2.7.5.13 <code>bfd_symbol_info</code></h4>
<p><strong>Description</strong><br>
Fill in the basic info about symbol that nm needs.
Additional info may be added by the back-ends after
calling this function.
</p>
<p><strong>Synopsis</strong>
</p><div class="example">
<pre class="example">void bfd_symbol_info (asymbol *symbol, symbol_info *ret);
</pre></div>
<a name="index-bfd_005fcopy_005fprivate_005fsymbol_005fdata"></a>
<a name="bfd_005fcopy_005fprivate_005fsymbol_005fdata"></a>
<h4 class="subsubsection">2.7.5.14 <code>bfd_copy_private_symbol_data</code></h4>
<p><strong>Synopsis</strong>
</p><div class="example">
<pre class="example">bfd_boolean bfd_copy_private_symbol_data
   (bfd *ibfd, asymbol *isym, bfd *obfd, asymbol *osym);
</pre></div>
<p><strong>Description</strong><br>
Copy private symbol information from <var>isym</var> in the BFD
<var>ibfd</var> to the symbol <var>osym</var> in the BFD <var>obfd</var>.
Return <code>TRUE</code> on success, <code>FALSE</code> on error.  Possible error
returns are:
</p>
<ul>
<li> <code>bfd_error_no_memory</code> -
Not enough memory exists to create private data for <var>osec</var>.
</li></ul>
<div class="example">
<pre class="example">#define bfd_copy_private_symbol_data(ibfd, isymbol, obfd, osymbol) \
  BFD_SEND (obfd, _bfd_copy_private_symbol_data, \
            (ibfd, isymbol, obfd, osymbol))

</pre></div>


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