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.\" Copyright (c) 2003 Greg Lehey.  All rights reserved.
.\"
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.\" modification, are permitted provided that the following conditions
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.\"    notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
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.\" This software is provided by Greg Lehey ``as is'' and
.\" any express or implied warranties, including, but not limited to, the
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.\" are disclaimed.  in no event shall Greg Lehey be liable
.\" for any direct, indirect, incidental, special, exemplary, or consequential
.\" damages (including, but not limited to, procurement of substitute goods
.\" or services; loss of use, data, or profits; or business interruption)
.\" however caused and on any theory of liability, whether in contract, strict
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.\" $FreeBSD$
.\"
.Dd June 8, 2003
.Os
.Dt ASF 8
.Sh NAME
.Nm asf
.Nd add symbol files
.Sh SYNOPSIS
.Nm
.Op Fl akx
.Op Ar modules-path Op Ar outfile
.Sh DESCRIPTION
By default,
.Nm
reads
.Nm kldstat
output from standard input and writes to standard output a list of
.Nm gdb
commands to add symbol files from klds in subdirectories of the subdirectory
.Ar modules
of the current directory, which is intended to be a kernel build directory.
This enables
.Nm gdb
to load the symbols into the debugging environment.
.Pp
If
.Pa modules-path 
is specified,
.Nm
uses it for the modules directory instead of the default
.Pa modules .
This is useful when building in a non-standard location (i.e. not 
.Pa /usr/src
and
.Pa /usr/obj ).
.Pp
If
.Pa outfile
is specified,
.Nm 
writes to it instead of standard output.
.Sh OPTIONS
The following options modify the function of
.Nm :
.Bl -tag -width indent
.It Fl a
When writing to an explicit
.Pa outfile ,
append to the file rather than overwriting it.
.It Fl k
Instead of reading from standard input, start a
.Nm kldstat
and read the information from it.
.It Fl x
Normally
.Nm 
looks for klds with names of the form
.Pa module.ko.debug .
The
.Fl x
option tells
.Nm
to look for klds with names of the form
.Pa module.ko .
.El
.Sh HISTORY
.Nm
first appeared in 
.Fx 5.0 .
.Sh AUTHORS
.An Greg Lehey Aq grog@FreeBSD.org
.Sh BUGS
It should be possible to write to an outfile without specifying a module path.