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Annotation of src/usr.bin/kdump/kdump.1, Revision 1.24

1.24    ! guenther    1: .\"    $OpenBSD: kdump.1,v 1.23 2013/06/01 09:51:30 miod 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
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                     30: .\"    from: @(#)kdump.1       8.1 (Berkeley) 6/6/93
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1.24    ! guenther   32: .Dd $Mdocdate: June 1 2013 $
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
1.12      jmc        40: .Bk -words
1.24    ! guenther   41: .Op Fl dHlnRTXx
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
1.23      miod       46: .Op Fl t Op ceinstuw
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 .
1.22      mikeb      72: .It Fl H
                     73: Display thread identifiers.
1.1       deraadt    74: .It Fl l
                     75: Loop reading the trace file, once the end-of-file is reached, waiting for
                     76: more data.
1.5       aaron      77: .It Fl m Ar maxdata
1.1       deraadt    78: Display at most
                     79: .Ar maxdata
1.12      jmc        80: bytes when decoding I/O.
1.1       deraadt    81: .It Fl n
                     82: Suppress ad hoc translations.
                     83: Normally
1.6       aaron      84: .Nm
1.4       aaron      85: tries to decode many system calls into a more human-readable format.
1.1       deraadt    86: For example,
                     87: .Xr ioctl 2
                     88: values are replaced with the macro name and
                     89: .Va errno
                     90: values are replaced with the
                     91: .Xr strerror 3
                     92: string.
                     93: Suppressing this feature yields a more consistent output format and is
                     94: easily amenable to further processing.
1.8       deraadt    95: .It Fl p Ar pid
                     96: Show output only for the
                     97: .Ar pid
                     98: specified.
1.1       deraadt    99: .It Fl R
                    100: Display relative timestamps (time since previous entry).
                    101: .It Fl T
1.15      jmc       102: Display absolute timestamps for each entry (seconds since the Epoch).
1.23      miod      103: .It Fl t Op ceinstuw
1.14      jmc       104: Selects which tracepoints to display.
                    105: See the
1.1       deraadt   106: .Fl t
                    107: option of
1.9       deraadt   108: .Xr ktrace 1
1.11      jmc       109: for the definitions of the flags.
1.14      jmc       110: .It Fl X
                    111: Display I/O data with hexadecimal data and printable ASCII characters
                    112: side by side.
1.13      tedu      113: .It Fl x
                    114: Display I/O data in hexadecimal.
1.1       deraadt   115: .El
1.6       aaron     116: .Sh FILES
                    117: .Bl -tag -width ktrace.out -compact
                    118: .It Pa ktrace.out
                    119: default ktrace dump file
                    120: .El
1.1       deraadt   121: .Sh SEE ALSO
                    122: .Xr ktrace 1
                    123: .Sh HISTORY
                    124: The
1.6       aaron     125: .Nm
1.4       aaron     126: command appeared in
1.1       deraadt   127: .Bx 4.4 .