1 .\" Copyright (c) 2004 Marcel Moolenaar
2 .\" All rights reserved.
4 .\" Redistribution and use in source and binary forms, with or without
5 .\" modification, are permitted provided that the following conditions
7 .\" 1. Redistributions of source code must retain the above copyright
8 .\" notice, this list of conditions and the following disclaimer.
9 .\" 2. Redistributions in binary form must reproduce the above copyright
10 .\" notice, this list of conditions and the following disclaimer in the
11 .\" documentation and/or other materials provided with the distribution.
13 .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
14 .\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
15 .\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
16 .\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17 .\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
18 .\" BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
19 .\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
20 .\" AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
21 .\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 .\" $FreeBSD: src/gnu/usr.bin/gdb/kgdb/kgdb.1,v 1.8 2005/07/28 15:59:52 keramida Exp $
26 .\" $DragonFly: src/gnu/usr.bin/gdb/kgdb/kgdb.1,v 1.1 2006/03/07 15:48:11 corecode Exp $
35 .Op Fl a | Fl f | Fl fullname
39 .Op Fl c Ar core | Fl n Ar dumpnr | Fl r Ar device
40 .Op Ar kernel Op Ar core
44 utility is a debugger based on
46 that allows debugging of kernel core files.
48 The options are as follows:
49 .Bl -tag -width ".Fl d Ar crashdir"
51 Increase the annotation level.
52 An annotation level of 1 features the historical
56 This is useful when running
63 options are supported for backward compatibility as well.
65 Suppress printing of the banner when the debugger starts.
68 form is supported for compatibility as well.
74 instead of the default,
76 to locate kernel core dump files in.
79 plus the dump number will be appended to determine
80 the actual dump file name.
84 as the core dump file.
86 Use the kernel core dump file numbered
94 to for a remote debugging session.
101 options are mutually exclusive.
103 Optionally, the name of the kernel symbol file and
104 the name of the core dump file can be supplied on the
105 command-line as positional arguments.
106 If no kernel symbol file name has been given, the
107 symbol file of the currently running kernel will be
109 If no core dump file has been specified through either
110 of the options or the last command-line argument,
112 will be opened to allow debugging the currently running
115 .Bl -tag -width ".Pa /var/crash"
117 Default memory image to open if no core dump file
120 Default directory to locate kernel core dump files.
127 utility first appeared in its current form in
129 and was later ported to