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Annotation of src/usr.bin/kdump/kdump.1, Revision 1.15

1.15    ! jmc         1: .\"    $OpenBSD: kdump.1,v 1.14 2006/05/11 12:26:42 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.
                      5: .\"
                      6: .\" Redistribution and use in source and binary forms, with or without
                      7: .\" modification, are permitted provided that the following conditions
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                      9: .\" 1. Redistributions of source code must retain the above copyright
                     10: .\"    notice, this list of conditions and the following disclaimer.
                     11: .\" 2. Redistributions in binary form must reproduce the above copyright
                     12: .\"    notice, this list of conditions and the following disclaimer in the
                     13: .\"    documentation and/or other materials provided with the distribution.
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
                     16: .\"    without specific prior written permission.
                     17: .\"
                     18: .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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                     30: .\"    from: @(#)kdump.1       8.1 (Berkeley) 6/6/93
                     31: .\"
                     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
1.14      jmc        41: .Op Fl dnlRTXx
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 .