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| <h5 class="subsubsection">23.2.2.28 Symbol table representation in Python</h5> |
| |
| <p><a name="index-symbol-tables-in-python-2361"></a><a name="index-gdb_002eSymtab-2362"></a><a name="index-gdb_002eSymtab_005fand_005fline-2363"></a> |
| Access to symbol table data maintained by <span class="sc">gdb</span> on the inferior |
| is exposed to Python via two objects: <code>gdb.Symtab_and_line</code> and |
| <code>gdb.Symtab</code>. Symbol table and line data for a frame is returned |
| from the <code>find_sal</code> method in <code>gdb.Frame</code> object. |
| See <a href="Frames-In-Python.html#Frames-In-Python">Frames In Python</a>. |
| |
| <p>For more information on <span class="sc">gdb</span>'s symbol table management, see |
| <a href="Symbols.html#Symbols">Examining the Symbol Table</a>, for more information. |
| |
| <p>A <code>gdb.Symtab_and_line</code> object has the following attributes: |
| |
| <div class="defun"> |
| — Variable: <b>Symtab_and_line.symtab</b><var><a name="index-Symtab_005fand_005fline_002esymtab-2364"></a></var><br> |
| <blockquote><p>The symbol table object (<code>gdb.Symtab</code>) for this frame. |
| This attribute is not writable. |
| </p></blockquote></div> |
| |
| <div class="defun"> |
| — Variable: <b>Symtab_and_line.pc</b><var><a name="index-Symtab_005fand_005fline_002epc-2365"></a></var><br> |
| <blockquote><p>Indicates the start of the address range occupied by code for the |
| current source line. This attribute is not writable. |
| </p></blockquote></div> |
| |
| <div class="defun"> |
| — Variable: <b>Symtab_and_line.last</b><var><a name="index-Symtab_005fand_005fline_002elast-2366"></a></var><br> |
| <blockquote><p>Indicates the end of the address range occupied by code for the current |
| source line. This attribute is not writable. |
| </p></blockquote></div> |
| |
| <div class="defun"> |
| — Variable: <b>Symtab_and_line.line</b><var><a name="index-Symtab_005fand_005fline_002eline-2367"></a></var><br> |
| <blockquote><p>Indicates the current line number for this object. This |
| attribute is not writable. |
| </p></blockquote></div> |
| |
| <p>A <code>gdb.Symtab_and_line</code> object has the following methods: |
| |
| <div class="defun"> |
| — Function: <b>Symtab_and_line.is_valid</b> ()<var><a name="index-Symtab_005fand_005fline_002eis_005fvalid-2368"></a></var><br> |
| <blockquote><p>Returns <code>True</code> if the <code>gdb.Symtab_and_line</code> object is valid, |
| <code>False</code> if not. A <code>gdb.Symtab_and_line</code> object can become |
| invalid if the Symbol table and line object it refers to does not |
| exist in <span class="sc">gdb</span> any longer. All other |
| <code>gdb.Symtab_and_line</code> methods will throw an exception if it is |
| invalid at the time the method is called. |
| </p></blockquote></div> |
| |
| <p>A <code>gdb.Symtab</code> object has the following attributes: |
| |
| <div class="defun"> |
| — Variable: <b>Symtab.filename</b><var><a name="index-Symtab_002efilename-2369"></a></var><br> |
| <blockquote><p>The symbol table's source filename. This attribute is not writable. |
| </p></blockquote></div> |
| |
| <div class="defun"> |
| — Variable: <b>Symtab.objfile</b><var><a name="index-Symtab_002eobjfile-2370"></a></var><br> |
| <blockquote><p>The symbol table's backing object file. See <a href="Objfiles-In-Python.html#Objfiles-In-Python">Objfiles In Python</a>. |
| This attribute is not writable. |
| </p></blockquote></div> |
| |
| <div class="defun"> |
| — Variable: <b>Symtab.producer</b><var><a name="index-Symtab_002eproducer-2371"></a></var><br> |
| <blockquote><p>The name and possibly version number of the program that |
| compiled the code in the symbol table. |
| The contents of this string is up to the compiler. |
| If no producer information is available then <code>None</code> is returned. |
| This attribute is not writable. |
| </p></blockquote></div> |
| |
| <p>A <code>gdb.Symtab</code> object has the following methods: |
| |
| <div class="defun"> |
| — Function: <b>Symtab.is_valid</b> ()<var><a name="index-Symtab_002eis_005fvalid-2372"></a></var><br> |
| <blockquote><p>Returns <code>True</code> if the <code>gdb.Symtab</code> object is valid, |
| <code>False</code> if not. A <code>gdb.Symtab</code> object can become invalid if |
| the symbol table it refers to does not exist in <span class="sc">gdb</span> any |
| longer. All other <code>gdb.Symtab</code> methods will throw an exception |
| if it is invalid at the time the method is called. |
| </p></blockquote></div> |
| |
| <div class="defun"> |
| — Function: <b>Symtab.fullname</b> ()<var><a name="index-Symtab_002efullname-2373"></a></var><br> |
| <blockquote><p>Return the symbol table's source absolute file name. |
| </p></blockquote></div> |
| |
| <div class="defun"> |
| — Function: <b>Symtab.global_block</b> ()<var><a name="index-Symtab_002eglobal_005fblock-2374"></a></var><br> |
| <blockquote><p>Return the global block of the underlying symbol table. |
| See <a href="Blocks-In-Python.html#Blocks-In-Python">Blocks In Python</a>. |
| </p></blockquote></div> |
| |
| <div class="defun"> |
| — Function: <b>Symtab.static_block</b> ()<var><a name="index-Symtab_002estatic_005fblock-2375"></a></var><br> |
| <blockquote><p>Return the static block of the underlying symbol table. |
| See <a href="Blocks-In-Python.html#Blocks-In-Python">Blocks In Python</a>. |
| </p></blockquote></div> |
| |
| <div class="defun"> |
| — Function: <b>Symtab.linetable</b> ()<var><a name="index-Symtab_002elinetable-2376"></a></var><br> |
| <blockquote><p>Return the line table associated with the symbol table. |
| See <a href="Line-Tables-In-Python.html#Line-Tables-In-Python">Line Tables In Python</a>. |
| </p></blockquote></div> |
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