1 .\" Copyright (c) 2004 Marcel Moolenaar
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25 .\" $FreeBSD: src/gnu/usr.bin/gdb/kgdb/kgdb.1,v 1.10 2006/10/21 17:39:35 ru Exp $
35 .Op Fl a | Fl f | Fl fullname
37 .Op Fl t | Fl tui-mode
41 .Op Fl c Ar core | Fl n Ar dumpnr | Fl r Ar device
42 .Op Ar kernel Op Ar core
46 utility is a debugger based on
48 that allows debugging of kernel core files.
50 The options are as follows:
51 .Bl -tag -width ".Fl d Ar crashdir"
53 Increase the annotation level.
54 An annotation level of 1 features the historical
58 This is useful when running
65 options are supported for backward compatibility as well.
67 Suppress printing of the banner when the debugger starts.
70 form is supported for compatibility as well.
72 Activate the Text User Interface (TUI). The
74 shows the source file, assembly output, program registers and
75 gdb commands in separate text windows. It implicitly sets the
81 Opens kmem-based targets in read-write mode.
85 instead of the default,
87 to locate kernel core dump files in.
90 plus the dump number will be appended to determine
91 the actual dump file name.
95 as the core dump file.
97 Use the kernel core dump file numbered
105 to for a remote debugging session.
112 options are mutually exclusive.
114 Optionally, the name of the kernel symbol file and
115 the name of the core dump file can be supplied on the
116 command-line as positional arguments.
117 If no kernel symbol file name has been given, the
118 symbol file of the currently running kernel will be
120 If no core dump file has been specified through either
121 of the options or the last command-line argument,
123 will be opened to allow debugging the currently running
126 .Bl -tag -width ".Pa /var/crash"
128 Default memory image to open if no core dump file
131 Default directory to locate kernel core dump files.
138 utility first appeared in its current form in
140 and was later ported to