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freebsd/usr.bin/ktrdump/ktrdump.8

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.\"-
.\" Copyright (c) 2002 Chad David
.\" All rights reserved.
.\"
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.\" modification, are permitted provided that the following conditions
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" $FreeBSD$
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.Dd April 1, 2002
.Dt KTRDUMP 8
.Os
.Sh NAME
.Nm ktrdump
.Nd print kernel ktr trace buffer
.Sh SYNOPSIS
.Nm
.Op Fl cfqrt
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.Op Fl e Ar execfile
.Op Fl m Ar corefile
.Op Fl o Ar outfile
.Sh DESCRIPTION
The
.Nm
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utility is used to dump the contents of the kernel ktr trace buffer.
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.Pp
The following options are available:
.Bl -tag -width ".Fl e Ar execfile"
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.It Fl c
Print the CPU number that each entry was logged from.
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.It Fl f
Print the file and line number that each entry was logged from.
.It Fl q
Quiet mode; don't print the column header.
.It Fl r
Print relative timestamps rather than absolute timestamps.
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.It Fl t
Print the timestamp for each entry.
.It Fl e Ar execfile
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The kernel image to resolve symbols from.
The default is the value returned via
.Xr getbootfile 3 .
.It Fl m Ar corefile
The core file or memory image to read from.
The default is
.Pa /dev/mem .
.It Fl o Ar outfile
The file to write the output to.
The default is standard output.
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.El
.Sh SEE ALSO
.Xr ktr 4 ,
.Xr ktr 9
.Sh HISTORY
The
.Nm
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utility first appeared in
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.Fx 5.0 .
.Sh AUTHORS
.An -nosplit
The
.Nm
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utility was implemented by
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.An Jake Burkholder Aq jake@FreeBSD.org .
.Pp
This manual page was written by
.An Chad David Aq davidc@FreeBSD.org .