Annotation of src/usr.bin/kdump/kdump.1, Revision 1.16
1.16 ! jmc 1: .\" $OpenBSD: kdump.1,v 1.15 2007/02/06 17:44:51 jmc Exp $
1.7 aaron 2: .\"
1.1 deraadt 3: .\" Copyright (c) 1990, 1993
4: .\" The Regents of the University of California. All rights reserved.
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1.10 millert 14: .\" 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 15: .\" may be used to endorse or promote products derived from this software
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30: .\" from: @(#)kdump.1 8.1 (Berkeley) 6/6/93
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32: .Dd June 6, 1993
33: .Dt KDUMP 1
1.5 aaron 34: .Os
1.1 deraadt 35: .Sh NAME
36: .Nm kdump
37: .Nd display kernel trace data
38: .Sh SYNOPSIS
39: .Nm kdump
1.12 jmc 40: .Bk -words
1.16 ! jmc 41: .Op Fl dlnRTXx
1.1 deraadt 42: .Op Fl e Ar emulation
43: .Op Fl f Ar file
44: .Op Fl m Ar maxdata
1.8 deraadt 45: .Op Fl p Ar pid
1.9 deraadt 46: .Op Fl t Op ceinsw
1.12 jmc 47: .Ek
1.1 deraadt 48: .Sh DESCRIPTION
1.6 aaron 49: .Nm
1.1 deraadt 50: displays the kernel trace files produced with
51: .Xr ktrace 1
1.4 aaron 52: in human-readable format.
1.1 deraadt 53: By default, the file
54: .Pa ktrace.out
1.9 deraadt 55: in the current directory is displayed, unless overridden by the
1.6 aaron 56: .Fl f
57: option.
1.1 deraadt 58: .Pp
59: The options are as follows:
1.6 aaron 60: .Bl -tag -width Ds
1.1 deraadt 61: .It Fl d
62: Display all numbers in decimal.
1.6 aaron 63: By default, values are printed out in hexadecimal.
1.1 deraadt 64: .It Fl e Ar emulation
1.6 aaron 65: Interpret system call maps assuming the named emulation instead of
66: .Qq bsd .
67: For example, to view trace output from a Linux binary, use
68: .Fl e Ar linux .
1.5 aaron 69: .It Fl f Ar file
1.1 deraadt 70: Display the specified file instead of
71: .Pa ktrace.out .
72: .It Fl l
73: Loop reading the trace file, once the end-of-file is reached, waiting for
74: more data.
1.5 aaron 75: .It Fl m Ar maxdata
1.1 deraadt 76: Display at most
77: .Ar maxdata
1.12 jmc 78: bytes when decoding I/O.
1.1 deraadt 79: .It Fl n
80: Suppress ad hoc translations.
81: Normally
1.6 aaron 82: .Nm
1.4 aaron 83: tries to decode many system calls into a more human-readable format.
1.1 deraadt 84: For example,
85: .Xr ioctl 2
86: values are replaced with the macro name and
87: .Va errno
88: values are replaced with the
89: .Xr strerror 3
90: string.
91: Suppressing this feature yields a more consistent output format and is
92: easily amenable to further processing.
1.8 deraadt 93: .It Fl p Ar pid
94: Show output only for the
95: .Ar pid
96: specified.
1.1 deraadt 97: .It Fl R
98: Display relative timestamps (time since previous entry).
99: .It Fl T
1.15 jmc 100: Display absolute timestamps for each entry (seconds since the Epoch).
1.9 deraadt 101: .It Fl t Op ceinsw
1.14 jmc 102: Selects which tracepoints to display.
103: See the
1.1 deraadt 104: .Fl t
105: option of
1.9 deraadt 106: .Xr ktrace 1
1.11 jmc 107: for the definitions of the flags.
1.14 jmc 108: .It Fl X
109: Display I/O data with hexadecimal data and printable ASCII characters
110: side by side.
1.13 tedu 111: .It Fl x
112: Display I/O data in hexadecimal.
1.1 deraadt 113: .El
1.6 aaron 114: .Sh FILES
115: .Bl -tag -width ktrace.out -compact
116: .It Pa ktrace.out
117: default ktrace dump file
118: .El
1.1 deraadt 119: .Sh SEE ALSO
120: .Xr ktrace 1
121: .Sh HISTORY
122: The
1.6 aaron 123: .Nm
1.4 aaron 124: command appeared in
1.1 deraadt 125: .Bx 4.4 .