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+.\" $NetBSD: modstat.8,v 1.28 2020/02/23 00:14:31 wiz Exp $
+.\"
+.\" Copyright (c) 1993 Christopher G. Demetriou
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\" 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
+.\" documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\" must display the following acknowledgement:
+.\" This product includes software developed for the
+.\" NetBSD Project. See http://www.NetBSD.org/ for
+.\" information about NetBSD.
+.\" 4. The name of the author may not be used to endorse or promote products
+.\" derived from this software without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+.\" IN NO EVENT SHALL THE AUTHOR 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 LIABILITY, OR TORT
+.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+.\"
+.\" <<Id: LICENSE,v 1.2 2000/06/14 15:57:33 cgd Exp>>
+.\"
+.Dd February 22, 2020
+.Dt MODSTAT 8
+.Os
+.Sh NAME
+.Nm modstat
+.Nd display status of loaded kernel modules
+.Sh SYNOPSIS
+.Nm
+.Op Fl Aaek
+.Op Fl n Ar name | name
+.Sh DESCRIPTION
+The
+.Nm
+utility displays the status of any kernel modules present in the kernel.
+.Pp
+The options are as follows:
+.Bl -tag -width indent
+.It Fl A
+Tells you whether or not modules can be autoloaded at the moment.
+This option
+.Em does
+take into consideration the sysctl
+.Li kern.module.autoload .
+.It Fl a
+Tells you whether or not modules can be autoloaded at the moment.
+This option
+.Em does not
+take into consideration the sysctl
+.Li kern.module.autoload .
+.It Fl e
+Tells you whether or not you may load a module at the moment.
+.It Fl k
+Display the kernel address of the module's text segment (disabled by default).
+.It Fl n Ar name
+Display the status of only the module with this name.
+Please note that
+.Fl n
+is optional.
+.El
+.Pp
+In addition to listing the currently loaded modules' name,
+the information reported by
+.Nm
+includes:
+.Bl -tag -width Loadaddr
+.It Li CLASS
+Module class, such as
+"vfs", "driver", "exec", "misc" or "secmodel".
+.It Li SOURCE
+Where the module was loaded from.
+.Qq Dv builtin
+indicates that the module was built into the running kernel.
+.Qq Dv boot
+indicates that the module was loaded during system bootstrap.
+.Qq Dv filesys
+indicates that the module was loaded from the file system.
+.It Li SIZE
+Size of the module's text section, in bytes.
+.It Li FLAG
+The module flags:
+.Bl -tag -width a -offset indent -compact
+.It Dv a
+Module is auto-loaded.
+.It Dv f
+Requires the
+.Xr modload 8
+flag
+.Fl f
+(force) to be loaded.
+.El
+.It Li REFS
+Number of references held on the module.
+Disabled builtin modules will show a count of \-1 here.
+.It Li ADDRESS
+The kernel address at which the module's text segment is loaded.
+Builtin modules will show 0 here.
+This field is only displayed if the
+.Fl k
+option is specified.
+.It Li REQUIRES
+Additional modules that must be present.
+.El
+.Sh EXIT STATUS
+The
+.Nm
+utility exits with a status of 0 on success
+and with a nonzero status if an error occurs.
+.Sh SEE ALSO
+.Xr module 7 ,
+.Xr sysctl 7 ,
+.Xr modload 8 ,
+.Xr modunload 8
+.Sh HISTORY
+A
+.Nm
+utility appeared in
+.Nx 0.9 .
+The
+.Nm
+command was designed to be similar in functionality
+to the corresponding command in
+.Tn "SunOS 4.1.3" .
+.Nm
+was switched to the module framework for
+.Nx 5.0 .
+.Sh AUTHORS
+.An -nosplit
+The original
+.Nx
+implementation was written by
+.An Terrence R. Lambert Aq Mt terry@cs.weber.edu .
+The switch to the module framework was by
+.An Andrew Doran Aq Mt ad@NetBSD.org .