163 lines
8.5 KiB
HTML
163 lines
8.5 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
|
|
<html>
|
|
<!-- Copyright (C) 1988-2022 Free Software Foundation, Inc.
|
|
|
|
Permission is granted to copy, distribute and/or modify this document
|
|
under the terms of the GNU Free Documentation License, Version 1.3 or
|
|
any later version published by the Free Software Foundation; with the
|
|
Invariant Sections being "Free Software" and "Free Software Needs
|
|
Free Documentation", with the Front-Cover Texts being "A GNU Manual,"
|
|
and with the Back-Cover Texts as in (a) below.
|
|
|
|
(a) The FSF's Back-Cover Text is: "You are free to copy and modify
|
|
this GNU Manual. Buying copies from GNU Press supports the FSF in
|
|
developing GNU and promoting software freedom." -->
|
|
<!-- Created by GNU Texinfo 5.1, http://www.gnu.org/software/texinfo/ -->
|
|
<head>
|
|
<title>Debugging with GDB: Architectures In Python</title>
|
|
|
|
<meta name="description" content="Debugging with GDB: Architectures In Python">
|
|
<meta name="keywords" content="Debugging with GDB: Architectures In Python">
|
|
<meta name="resource-type" content="document">
|
|
<meta name="distribution" content="global">
|
|
<meta name="Generator" content="makeinfo">
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
|
|
<link href="index.html#Top" rel="start" title="Top">
|
|
<link href="Concept-Index.html#Concept-Index" rel="index" title="Concept Index">
|
|
<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
|
|
<link href="Python-API.html#Python-API" rel="up" title="Python API">
|
|
<link href="Registers-In-Python.html#Registers-In-Python" rel="next" title="Registers In Python">
|
|
<link href="Lazy-Strings-In-Python.html#Lazy-Strings-In-Python" rel="previous" title="Lazy Strings In Python">
|
|
<style type="text/css">
|
|
<!--
|
|
a.summary-letter {text-decoration: none}
|
|
blockquote.smallquotation {font-size: smaller}
|
|
div.display {margin-left: 3.2em}
|
|
div.example {margin-left: 3.2em}
|
|
div.indentedblock {margin-left: 3.2em}
|
|
div.lisp {margin-left: 3.2em}
|
|
div.smalldisplay {margin-left: 3.2em}
|
|
div.smallexample {margin-left: 3.2em}
|
|
div.smallindentedblock {margin-left: 3.2em; font-size: smaller}
|
|
div.smalllisp {margin-left: 3.2em}
|
|
kbd {font-style:oblique}
|
|
pre.display {font-family: inherit}
|
|
pre.format {font-family: inherit}
|
|
pre.menu-comment {font-family: serif}
|
|
pre.menu-preformatted {font-family: serif}
|
|
pre.smalldisplay {font-family: inherit; font-size: smaller}
|
|
pre.smallexample {font-size: smaller}
|
|
pre.smallformat {font-family: inherit; font-size: smaller}
|
|
pre.smalllisp {font-size: smaller}
|
|
span.nocodebreak {white-space:nowrap}
|
|
span.nolinebreak {white-space:nowrap}
|
|
span.roman {font-family:serif; font-weight:normal}
|
|
span.sansserif {font-family:sans-serif; font-weight:normal}
|
|
ul.no-bullet {list-style: none}
|
|
-->
|
|
</style>
|
|
|
|
|
|
</head>
|
|
|
|
<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000">
|
|
<a name="Architectures-In-Python"></a>
|
|
<div class="header">
|
|
<p>
|
|
Next: <a href="Registers-In-Python.html#Registers-In-Python" accesskey="n" rel="next">Registers In Python</a>, Previous: <a href="Lazy-Strings-In-Python.html#Lazy-Strings-In-Python" accesskey="p" rel="previous">Lazy Strings In Python</a>, Up: <a href="Python-API.html#Python-API" accesskey="u" rel="up">Python API</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p>
|
|
</div>
|
|
<hr>
|
|
<a name="Python-representation-of-architectures"></a>
|
|
<h4 class="subsubsection">23.3.2.34 Python representation of architectures</h4>
|
|
<a name="index-Python-architectures"></a>
|
|
|
|
<p><small>GDB</small> uses architecture specific parameters and artifacts in a
|
|
number of its various computations. An architecture is represented
|
|
by an instance of the <code>gdb.Architecture</code> class.
|
|
</p>
|
|
<p>A <code>gdb.Architecture</code> class has the following methods:
|
|
</p>
|
|
<a name="gdbpy_005farchitecture_005fname"></a><dl>
|
|
<dt><a name="index-Architecture_002ename"></a>Function: <strong>Architecture.name</strong> <em>()</em></dt>
|
|
<dd><p>Return the name (string value) of the architecture.
|
|
</p></dd></dl>
|
|
|
|
<dl>
|
|
<dt><a name="index-Architecture_002edisassemble"></a>Function: <strong>Architecture.disassemble</strong> <em>(<var>start_pc</var> <span class="roman">[</span>, <var>end_pc</var> <span class="roman">[</span>, <var>count</var><span class="roman">]]</span>)</em></dt>
|
|
<dd><p>Return a list of disassembled instructions starting from the memory
|
|
address <var>start_pc</var>. The optional arguments <var>end_pc</var> and
|
|
<var>count</var> determine the number of instructions in the returned list.
|
|
If both the optional arguments <var>end_pc</var> and <var>count</var> are
|
|
specified, then a list of at most <var>count</var> disassembled instructions
|
|
whose start address falls in the closed memory address interval from
|
|
<var>start_pc</var> to <var>end_pc</var> are returned. If <var>end_pc</var> is not
|
|
specified, but <var>count</var> is specified, then <var>count</var> number of
|
|
instructions starting from the address <var>start_pc</var> are returned. If
|
|
<var>count</var> is not specified but <var>end_pc</var> is specified, then all
|
|
instructions whose start address falls in the closed memory address
|
|
interval from <var>start_pc</var> to <var>end_pc</var> are returned. If neither
|
|
<var>end_pc</var> nor <var>count</var> are specified, then a single instruction at
|
|
<var>start_pc</var> is returned. For all of these cases, each element of the
|
|
returned list is a Python <code>dict</code> with the following string keys:
|
|
</p>
|
|
<dl compact="compact">
|
|
<dt><code>addr</code></dt>
|
|
<dd><p>The value corresponding to this key is a Python long integer capturing
|
|
the memory address of the instruction.
|
|
</p>
|
|
</dd>
|
|
<dt><code>asm</code></dt>
|
|
<dd><p>The value corresponding to this key is a string value which represents
|
|
the instruction with assembly language mnemonics. The assembly
|
|
language flavor used is the same as that specified by the current CLI
|
|
variable <code>disassembly-flavor</code>. See <a href="Machine-Code.html#Machine-Code">Machine Code</a>.
|
|
</p>
|
|
</dd>
|
|
<dt><code>length</code></dt>
|
|
<dd><p>The value corresponding to this key is the length (integer value) of the
|
|
instruction in bytes.
|
|
</p>
|
|
</dd>
|
|
</dl>
|
|
</dd></dl>
|
|
|
|
<a name="index-Architecture_002einteger_005ftype"></a>
|
|
<dl>
|
|
<dt><a name="index-Architecture_002einteger_005ftype-1"></a>Function: <strong>Architecture.integer_type</strong> <em>(size <span class="roman">[</span>, signed<span class="roman">]</span>)</em></dt>
|
|
<dd><p>This function looks up an integer type by its <var>size</var>, and
|
|
optionally whether or not it is signed.
|
|
</p>
|
|
<p><var>size</var> is the size, in bits, of the desired integer type. Only
|
|
certain sizes are currently supported: 0, 8, 16, 24, 32, 64, and 128.
|
|
</p>
|
|
<p>If <var>signed</var> is not specified, it defaults to <code>True</code>. If
|
|
<var>signed</var> is <code>False</code>, the returned type will be unsigned.
|
|
</p>
|
|
<p>If the indicated type cannot be found, this function will throw a
|
|
<code>ValueError</code> exception.
|
|
</p></dd></dl>
|
|
|
|
<a name="gdbpy_005farchitecture_005fregisters"></a><dl>
|
|
<dt><a name="index-Architecture_002eregisters"></a>Function: <strong>Architecture.registers</strong> <em>(<span class="roman">[</span> <var>reggroup</var> <span class="roman">]</span>)</em></dt>
|
|
<dd><p>Return a <code>gdb.RegisterDescriptorIterator</code> (see <a href="Registers-In-Python.html#Registers-In-Python">Registers In Python</a>) for all of the registers in <var>reggroup</var>, a string that is
|
|
the name of a register group. If <var>reggroup</var> is omitted, or is the
|
|
empty string, then the register group ‘<samp>all</samp>’ is assumed.
|
|
</p></dd></dl>
|
|
|
|
<a name="gdbpy_005farchitecture_005freggroups"></a><dl>
|
|
<dt><a name="index-Architecture_002eregister_005fgroups"></a>Function: <strong>Architecture.register_groups</strong> <em>()</em></dt>
|
|
<dd><p>Return a <code>gdb.RegisterGroupsIterator</code> (see <a href="Registers-In-Python.html#Registers-In-Python">Registers In Python</a>) for all of the register groups available for the
|
|
<code>gdb.Architecture</code>.
|
|
</p></dd></dl>
|
|
|
|
<hr>
|
|
<div class="header">
|
|
<p>
|
|
Next: <a href="Registers-In-Python.html#Registers-In-Python" accesskey="n" rel="next">Registers In Python</a>, Previous: <a href="Lazy-Strings-In-Python.html#Lazy-Strings-In-Python" accesskey="p" rel="previous">Lazy Strings In Python</a>, Up: <a href="Python-API.html#Python-API" accesskey="u" rel="up">Python API</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p>
|
|
</div>
|
|
|
|
|
|
|
|
</body>
|
|
</html>
|