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-# $OpenBSD: README,v 1.2 2000/03/02 14:46:36 todd Exp $
-#
-# Copyright (c) 1993 Terrence R. Lambert.
-# 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 by Terrence R. Lambert.
-# 4. The name Terrence R. Lambert may not be used to endorse or promote
-# products derived from this software without specific prior written
-# permission.
-#
-# THIS SOFTWARE IS PROVIDED BY TERRENCE R. LAMBERT ``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 TERRENCE R. LAMBERT 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.
-#
-#
-
-1.0 Overview
-
- This is the README file for the sample miscellaneous module
- that mimics the loaded system call.
-
- A miscellaneous module may be used to load any data or
- program into the kernel that can be made available by
- modifying a table, pointer, or other kernel data to inform
- the kernel that the module should be used instead of the
- previous code/data path.
-
- Generally, it is assumed that a loadable module is one of
- a set of similar modules (such as a file system or console
- terminal emulation), and that the reference is through a
- table (such as vfssw[]), and that a "special" value is
- assigned to the slots which are allowed to be replaced.
- This is not enforced, so you may use the "miscellaneous"
- module any way you see fit.
-
- As with the loadable system calls, it may be desirable to
- allow the module loader to replace an *existing* entry to
- try out changes to kernel code without rebuilding and
- booting from the new kernel.
-
-
-2.0 Directions
-
- To test the module, do the following:
-
- cd module
- make load
-
- A load message (the copyright) will be printed on the console.
-
- cd ../test
- make load
-
- The system call prints a message on the console when called.
- This message will be printed when running "make load" in
- the "test" subdirectory.
-
-
-3.0 Recovering resources
-
- The miscellaneous module consumes 8 pages of memory when
- loaded; it can be freed up by unloading it. To unload it,
- type the following from the directory this file is in:
-
- cd module
- make unload
-
- The miscellaneous module will be unloaded by name.
-
-
-4.0 END OF DOCUMENT