Annotation of src/usr.bin/kdump/kdump.1, Revision 1.29
1.29 ! naddy 1: .\" $OpenBSD: kdump.1,v 1.28 2016/02/26 21:46:39 naddy 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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1.29 ! naddy 32: .Dd $Mdocdate: February 26 2016 $
1.1 deraadt 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
1.24 guenther 40: .Op Fl dHlnRTXx
1.1 deraadt 41: .Op Fl e Ar emulation
42: .Op Fl f Ar file
43: .Op Fl m Ar maxdata
1.8 deraadt 44: .Op Fl p Ar pid
1.27 jmc 45: .Op Fl t Op Cm ceinstuxX+
1.1 deraadt 46: .Sh DESCRIPTION
1.6 aaron 47: .Nm
1.1 deraadt 48: displays the kernel trace files produced with
49: .Xr ktrace 1
1.4 aaron 50: in human-readable format.
1.1 deraadt 51: By default, the file
52: .Pa ktrace.out
1.9 deraadt 53: in the current directory is displayed, unless overridden by the
1.6 aaron 54: .Fl f
55: option.
1.1 deraadt 56: .Pp
57: The options are as follows:
1.6 aaron 58: .Bl -tag -width Ds
1.1 deraadt 59: .It Fl d
60: Display all numbers in decimal.
1.6 aaron 61: By default, values are printed out in hexadecimal.
1.1 deraadt 62: .It Fl e Ar emulation
1.6 aaron 63: Interpret system call maps assuming the named emulation instead of
1.28 naddy 64: .Qq native .
1.5 aaron 65: .It Fl f Ar file
1.1 deraadt 66: Display the specified file instead of
67: .Pa ktrace.out .
1.22 mikeb 68: .It Fl H
69: Display thread identifiers.
1.1 deraadt 70: .It Fl l
71: Loop reading the trace file, once the end-of-file is reached, waiting for
72: more data.
1.5 aaron 73: .It Fl m Ar maxdata
1.1 deraadt 74: Display at most
75: .Ar maxdata
1.12 jmc 76: bytes when decoding I/O.
1.1 deraadt 77: .It Fl n
78: Suppress ad hoc translations.
79: Normally
1.6 aaron 80: .Nm
1.4 aaron 81: tries to decode many system calls into a more human-readable format.
1.1 deraadt 82: For example,
83: .Xr ioctl 2
84: values are replaced with the macro name and
85: .Va errno
86: values are replaced with the
87: .Xr strerror 3
88: string.
89: Suppressing this feature yields a more consistent output format and is
90: easily amenable to further processing.
1.8 deraadt 91: .It Fl p Ar pid
92: Show output only for the
93: .Ar pid
94: specified.
1.1 deraadt 95: .It Fl R
96: Display relative timestamps (time since previous entry).
97: .It Fl T
1.15 jmc 98: Display absolute timestamps for each entry (seconds since the Epoch).
1.27 jmc 99: .It Fl t Op Cm ceinstuxX+
1.14 jmc 100: Selects which tracepoints to display.
101: See the
1.1 deraadt 102: .Fl t
103: option of
1.9 deraadt 104: .Xr ktrace 1
1.11 jmc 105: for the definitions of the flags.
1.14 jmc 106: .It Fl X
107: Display I/O data with hexadecimal data and printable ASCII characters
108: side by side.
1.13 tedu 109: .It Fl x
110: Display I/O data in hexadecimal.
1.1 deraadt 111: .El
1.6 aaron 112: .Sh FILES
113: .Bl -tag -width ktrace.out -compact
114: .It Pa ktrace.out
115: default ktrace dump file
116: .El
1.1 deraadt 117: .Sh SEE ALSO
118: .Xr ktrace 1
119: .Sh HISTORY
120: The
1.6 aaron 121: .Nm
1.4 aaron 122: command appeared in
1.1 deraadt 123: .Bx 4.4 .
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