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122 lines
4.8 KiB
HTML
122 lines
4.8 KiB
HTML
4 years ago
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<!-- Copyright (C) 1988-2019 Free Software Foundation, Inc.
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.3 or
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any later version published by the Free Software Foundation; with the
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Invariant Sections being "Free Software" and "Free Software Needs
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Free Documentation", with the Front-Cover Texts being "A GNU Manual,"
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and with the Back-Cover Texts as in (a) below.
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(a) The FSF's Back-Cover Text is: "You are free to copy and modify
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this GNU Manual. Buying copies from GNU Press supports the FSF in
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developing GNU and promoting software freedom." -->
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<!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>Darwin (Debugging with GDB)</title>
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<meta name="description" content="Darwin (Debugging with GDB)">
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<meta name="keywords" content="Darwin (Debugging with GDB)">
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<meta name="resource-type" content="document">
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<meta name="distribution" content="global">
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<meta name="Generator" content="makeinfo">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<link href="index.html#Top" rel="start" title="Top">
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<link href="Concept-Index.html#Concept-Index" rel="index" title="Concept Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Native.html#Native" rel="up" title="Native">
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<link href="FreeBSD.html#FreeBSD" rel="next" title="FreeBSD">
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<link href="Hurd-Native.html#Hurd-Native" rel="prev" title="Hurd Native">
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<style type="text/css">
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-->
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</style>
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</head>
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<body lang="en">
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<a name="Darwin"></a>
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<div class="header">
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<p>
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Next: <a href="FreeBSD.html#FreeBSD" accesskey="n" rel="next">FreeBSD</a>, Previous: <a href="Hurd-Native.html#Hurd-Native" accesskey="p" rel="prev">Hurd Native</a>, Up: <a href="Native.html#Native" accesskey="u" rel="up">Native</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>
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</div>
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<hr>
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<a name="Darwin-1"></a>
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<h4 class="subsection">21.1.6 Darwin</h4>
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<a name="index-Darwin"></a>
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<p><small>GDB</small> provides the following commands specific to the Darwin target:
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</p>
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<dl compact="compact">
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<dt><code>set debug darwin <var>num</var></code></dt>
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<dd><a name="index-set-debug-darwin"></a>
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<p>When set to a non zero value, enables debugging messages specific to
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the Darwin support. Higher values produce more verbose output.
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</p>
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</dd>
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<dt><code>show debug darwin</code></dt>
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<dd><a name="index-show-debug-darwin"></a>
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<p>Show the current state of Darwin messages.
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</p>
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</dd>
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<dt><code>set debug mach-o <var>num</var></code></dt>
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<dd><a name="index-set-debug-mach_002do"></a>
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<p>When set to a non zero value, enables debugging messages while
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<small>GDB</small> is reading Darwin object files. (<em>Mach-O</em> is the
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file format used on Darwin for object and executable files.) Higher
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values produce more verbose output. This is a command to diagnose
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problems internal to <small>GDB</small> and should not be needed in normal
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usage.
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</p>
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</dd>
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<dt><code>show debug mach-o</code></dt>
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<dd><a name="index-show-debug-mach_002do"></a>
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<p>Show the current state of Mach-O file messages.
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</p>
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</dd>
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<dt><code>set mach-exceptions on</code></dt>
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<dt><code>set mach-exceptions off</code></dt>
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<dd><a name="index-set-mach_002dexceptions"></a>
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<p>On Darwin, faults are first reported as a Mach exception and are then
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mapped to a Posix signal. Use this command to turn on trapping of
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Mach exceptions in the inferior. This might be sometimes useful to
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better understand the cause of a fault. The default is off.
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</p>
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</dd>
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<dt><code>show mach-exceptions</code></dt>
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<dd><a name="index-show-mach_002dexceptions"></a>
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<p>Show the current state of exceptions trapping.
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</p></dd>
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</dl>
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</body>
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</html>
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