You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
197 lines
7.1 KiB
HTML
197 lines
7.1 KiB
HTML
4 years ago
|
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
|
||
|
|
<html>
|
||
|
|
<!-- Copyright (C) 1988-2019 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 6.4, http://www.gnu.org/software/texinfo/ -->
|
||
|
|
<head>
|
||
|
|
<title>ARM (Debugging with GDB)</title>
|
||
|
|
|
||
|
|
<meta name="description" content="ARM (Debugging with GDB)">
|
||
|
|
<meta name="keywords" content="ARM (Debugging with GDB)">
|
||
|
|
<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="Embedded-Processors.html#Embedded-Processors" rel="up" title="Embedded Processors">
|
||
|
|
<link href="M68K.html#M68K" rel="next" title="M68K">
|
||
|
|
<link href="ARC.html#ARC" rel="prev" title="ARC">
|
||
|
|
<style type="text/css">
|
||
|
|
<!--
|
||
|
|
a.summary-letter {text-decoration: none}
|
||
|
|
blockquote.indentedblock {margin-right: 0em}
|
||
|
|
blockquote.smallindentedblock {margin-right: 0em; font-size: smaller}
|
||
|
|
blockquote.smallquotation {font-size: smaller}
|
||
|
|
div.display {margin-left: 3.2em}
|
||
|
|
div.example {margin-left: 3.2em}
|
||
|
|
div.lisp {margin-left: 3.2em}
|
||
|
|
div.smalldisplay {margin-left: 3.2em}
|
||
|
|
div.smallexample {margin-left: 3.2em}
|
||
|
|
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.nolinebreak {white-space: nowrap}
|
||
|
|
span.roman {font-family: initial; font-weight: normal}
|
||
|
|
span.sansserif {font-family: sans-serif; font-weight: normal}
|
||
|
|
ul.no-bullet {list-style: none}
|
||
|
|
-->
|
||
|
|
</style>
|
||
|
|
|
||
|
|
|
||
|
|
</head>
|
||
|
|
|
||
|
|
<body lang="en">
|
||
|
|
<a name="ARM"></a>
|
||
|
|
<div class="header">
|
||
|
|
<p>
|
||
|
|
Next: <a href="M68K.html#M68K" accesskey="n" rel="next">M68K</a>, Previous: <a href="ARC.html#ARC" accesskey="p" rel="prev">ARC</a>, Up: <a href="Embedded-Processors.html#Embedded-Processors" accesskey="u" rel="up">Embedded Processors</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="ARM-1"></a>
|
||
|
|
<h4 class="subsection">21.3.2 ARM</h4>
|
||
|
|
|
||
|
|
<p><small>GDB</small> provides the following ARM-specific commands:
|
||
|
|
</p>
|
||
|
|
<dl compact="compact">
|
||
|
|
<dt><code>set arm disassembler</code></dt>
|
||
|
|
<dd><a name="index-set-arm"></a>
|
||
|
|
<p>This commands selects from a list of disassembly styles. The
|
||
|
|
<code>"std"</code> style is the standard style.
|
||
|
|
</p>
|
||
|
|
</dd>
|
||
|
|
<dt><code>show arm disassembler</code></dt>
|
||
|
|
<dd><a name="index-show-arm"></a>
|
||
|
|
<p>Show the current disassembly style.
|
||
|
|
</p>
|
||
|
|
</dd>
|
||
|
|
<dt><code>set arm apcs32</code></dt>
|
||
|
|
<dd><a name="index-ARM-32_002dbit-mode"></a>
|
||
|
|
<p>This command toggles ARM operation mode between 32-bit and 26-bit.
|
||
|
|
</p>
|
||
|
|
</dd>
|
||
|
|
<dt><code>show arm apcs32</code></dt>
|
||
|
|
<dd><p>Display the current usage of the ARM 32-bit mode.
|
||
|
|
</p>
|
||
|
|
</dd>
|
||
|
|
<dt><code>set arm fpu <var>fputype</var></code></dt>
|
||
|
|
<dd><p>This command sets the ARM floating-point unit (FPU) type. The
|
||
|
|
argument <var>fputype</var> can be one of these:
|
||
|
|
</p>
|
||
|
|
<dl compact="compact">
|
||
|
|
<dt><code>auto</code></dt>
|
||
|
|
<dd><p>Determine the FPU type by querying the OS ABI.
|
||
|
|
</p></dd>
|
||
|
|
<dt><code>softfpa</code></dt>
|
||
|
|
<dd><p>Software FPU, with mixed-endian doubles on little-endian ARM
|
||
|
|
processors.
|
||
|
|
</p></dd>
|
||
|
|
<dt><code>fpa</code></dt>
|
||
|
|
<dd><p>GCC-compiled FPA co-processor.
|
||
|
|
</p></dd>
|
||
|
|
<dt><code>softvfp</code></dt>
|
||
|
|
<dd><p>Software FPU with pure-endian doubles.
|
||
|
|
</p></dd>
|
||
|
|
<dt><code>vfp</code></dt>
|
||
|
|
<dd><p>VFP co-processor.
|
||
|
|
</p></dd>
|
||
|
|
</dl>
|
||
|
|
|
||
|
|
</dd>
|
||
|
|
<dt><code>show arm fpu</code></dt>
|
||
|
|
<dd><p>Show the current type of the FPU.
|
||
|
|
</p>
|
||
|
|
</dd>
|
||
|
|
<dt><code>set arm abi</code></dt>
|
||
|
|
<dd><p>This command forces <small>GDB</small> to use the specified ABI.
|
||
|
|
</p>
|
||
|
|
</dd>
|
||
|
|
<dt><code>show arm abi</code></dt>
|
||
|
|
<dd><p>Show the currently used ABI.
|
||
|
|
</p>
|
||
|
|
</dd>
|
||
|
|
<dt><code>set arm fallback-mode (arm|thumb|auto)</code></dt>
|
||
|
|
<dd><p><small>GDB</small> uses the symbol table, when available, to determine
|
||
|
|
whether instructions are ARM or Thumb. This command controls
|
||
|
|
<small>GDB</small>’s default behavior when the symbol table is not
|
||
|
|
available. The default is ‘<samp>auto</samp>’, which causes <small>GDB</small> to
|
||
|
|
use the current execution mode (from the <code>T</code> bit in the <code>CPSR</code>
|
||
|
|
register).
|
||
|
|
</p>
|
||
|
|
</dd>
|
||
|
|
<dt><code>show arm fallback-mode</code></dt>
|
||
|
|
<dd><p>Show the current fallback instruction mode.
|
||
|
|
</p>
|
||
|
|
</dd>
|
||
|
|
<dt><code>set arm force-mode (arm|thumb|auto)</code></dt>
|
||
|
|
<dd><p>This command overrides use of the symbol table to determine whether
|
||
|
|
instructions are ARM or Thumb. The default is ‘<samp>auto</samp>’, which
|
||
|
|
causes <small>GDB</small> to use the symbol table and then the setting
|
||
|
|
of ‘<samp>set arm fallback-mode</samp>’.
|
||
|
|
</p>
|
||
|
|
</dd>
|
||
|
|
<dt><code>show arm force-mode</code></dt>
|
||
|
|
<dd><p>Show the current forced instruction mode.
|
||
|
|
</p>
|
||
|
|
</dd>
|
||
|
|
<dt><code>set debug arm</code></dt>
|
||
|
|
<dd><p>Toggle whether to display ARM-specific debugging messages from the ARM
|
||
|
|
target support subsystem.
|
||
|
|
</p>
|
||
|
|
</dd>
|
||
|
|
<dt><code>show debug arm</code></dt>
|
||
|
|
<dd><p>Show whether ARM-specific debugging messages are enabled.
|
||
|
|
</p></dd>
|
||
|
|
</dl>
|
||
|
|
|
||
|
|
<dl compact="compact">
|
||
|
|
<dt><code>target sim <span class="roman">[</span><var>simargs</var><span class="roman">]</span> …</code></dt>
|
||
|
|
<dd><p>The <small>GDB</small> ARM simulator accepts the following optional arguments.
|
||
|
|
</p>
|
||
|
|
<dl compact="compact">
|
||
|
|
<dt><code>--swi-support=<var>type</var></code></dt>
|
||
|
|
<dd><p>Tell the simulator which SWI interfaces to support. The argument
|
||
|
|
<var>type</var> may be a comma separated list of the following values.
|
||
|
|
The default value is <code>all</code>.
|
||
|
|
</p>
|
||
|
|
<dl compact="compact">
|
||
|
|
<dt><code>none</code></dt>
|
||
|
|
<dt><code>demon</code></dt>
|
||
|
|
<dt><code>angel</code></dt>
|
||
|
|
<dt><code>redboot</code></dt>
|
||
|
|
<dt><code>all</code></dt>
|
||
|
|
</dl>
|
||
|
|
</dd>
|
||
|
|
</dl>
|
||
|
|
</dd>
|
||
|
|
</dl>
|
||
|
|
|
||
|
|
<hr>
|
||
|
|
<div class="header">
|
||
|
|
<p>
|
||
|
|
Next: <a href="M68K.html#M68K" accesskey="n" rel="next">M68K</a>, Previous: <a href="ARC.html#ARC" accesskey="p" rel="prev">ARC</a>, Up: <a href="Embedded-Processors.html#Embedded-Processors" accesskey="u" rel="up">Embedded Processors</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>
|