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Annotation of src/usr.bin/kdump/kdump.1, Revision 1.10

1.10    ! millert     1: .\"    $OpenBSD: kdump.1,v 1.9 2003/02/19 19:30:13 deraadt 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
                     40: .Op Fl dnlRT
                     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
1.9       deraadt    45: .Op Fl t Op ceinsw
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
                     64: .Qq bsd .
                     65: For example, to view trace output from a Linux binary, use
                     66: .Fl e Ar linux .
1.5       aaron      67: .It Fl f Ar file
1.1       deraadt    68: Display the specified file instead of
                     69: .Pa ktrace.out .
                     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
                     76: bytes when decoding
                     77: .Tn I/O .
                     78: .It Fl n
                     79: Suppress ad hoc translations.
                     80: Normally
1.6       aaron      81: .Nm
1.4       aaron      82: tries to decode many system calls into a more human-readable format.
1.1       deraadt    83: For example,
                     84: .Xr ioctl 2
                     85: values are replaced with the macro name and
                     86: .Va errno
                     87: values are replaced with the
                     88: .Xr strerror 3
                     89: string.
                     90: Suppressing this feature yields a more consistent output format and is
                     91: easily amenable to further processing.
1.8       deraadt    92: .It Fl p Ar pid
                     93: Show output only for the
                     94: .Ar pid
                     95: specified.
1.1       deraadt    96: .It Fl R
                     97: Display relative timestamps (time since previous entry).
                     98: .It Fl T
                     99: Display absolute timestamps for each entry (seconds since epoch).
1.9       deraadt   100: .It Fl t Op ceinsw
                    101: Selects which tracepoints to display. See the
1.1       deraadt   102: .Fl t
                    103: option of
1.9       deraadt   104: .Xr ktrace 1
                    105: for the definitions of the flags.
1.1       deraadt   106: .El
1.6       aaron     107: .Sh FILES
                    108: .Bl -tag -width ktrace.out -compact
                    109: .It Pa ktrace.out
                    110: default ktrace dump file
                    111: .El
1.1       deraadt   112: .Sh SEE ALSO
                    113: .Xr ktrace 1
                    114: .Sh HISTORY
                    115: The
1.6       aaron     116: .Nm
1.4       aaron     117: command appeared in
1.1       deraadt   118: .Bx 4.4 .