96 lines
4.7 KiB
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96 lines
4.7 KiB
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<title>Architectures In Python - Debugging with GDB</title>
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<div class="node">
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<a name="Architectures-In-Python"></a>
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<p>
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Previous: <a rel="previous" accesskey="p" href="Lazy-Strings-In-Python.html#Lazy-Strings-In-Python">Lazy Strings In Python</a>,
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Up: <a rel="up" accesskey="u" href="Python-API.html#Python-API">Python API</a>
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</div>
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<h5 class="subsubsection">23.2.2.33 Python representation of architectures</h5>
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<p><a name="index-Python-architectures-2434"></a>
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<span class="sc">gdb</span> uses architecture specific parameters and artifacts in a
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number of its various computations. An architecture is represented
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by an instance of the <code>gdb.Architecture</code> class.
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<p>A <code>gdb.Architecture</code> class has the following methods:
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<div class="defun">
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— Function: <b>Architecture.name</b> ()<var><a name="index-Architecture_002ename-2435"></a></var><br>
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<blockquote><p>Return the name (string value) of the architecture.
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</p></blockquote></div>
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<div class="defun">
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— Function: <b>Architecture.disassemble</b> (<var>start_pc </var><span class="roman">[</span><var>, end_pc </var><span class="roman">[</span><var>, count</var><span class="roman">]]</span>)<var><a name="index-Architecture_002edisassemble-2436"></a></var><br>
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<blockquote><p>Return a list of disassembled instructions starting from the memory
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address <var>start_pc</var>. The optional arguments <var>end_pc</var> and
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<var>count</var> determine the number of instructions in the returned list.
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If both the optional arguments <var>end_pc</var> and <var>count</var> are
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specified, then a list of at most <var>count</var> disassembled instructions
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whose start address falls in the closed memory address interval from
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<var>start_pc</var> to <var>end_pc</var> are returned. If <var>end_pc</var> is not
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specified, but <var>count</var> is specified, then <var>count</var> number of
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instructions starting from the address <var>start_pc</var> are returned. If
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<var>count</var> is not specified but <var>end_pc</var> is specified, then all
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instructions whose start address falls in the closed memory address
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interval from <var>start_pc</var> to <var>end_pc</var> are returned. If neither
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<var>end_pc</var> nor <var>count</var> are specified, then a single instruction at
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<var>start_pc</var> is returned. For all of these cases, each element of the
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returned list is a Python <code>dict</code> with the following string keys:
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<dl>
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<dt><code>addr</code><dd>The value corresponding to this key is a Python long integer capturing
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the memory address of the instruction.
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<br><dt><code>asm</code><dd>The value corresponding to this key is a string value which represents
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the instruction with assembly language mnemonics. The assembly
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language flavor used is the same as that specified by the current CLI
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variable <code>disassembly-flavor</code>. See <a href="Machine-Code.html#Machine-Code">Machine Code</a>.
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<br><dt><code>length</code><dd>The value corresponding to this key is the length (integer value) of the
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instruction in bytes.
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</dl>
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</p></blockquote></div>
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</body></html>
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