#!/bin/sh
#
#			-- myscript --
#
# This script extracts the address of the 'sys_call_table[]' 
# from the 'System.map' file for the current kernel version,
# then uses it as the module-parameter value for 'svctable'
# when it installs our 'myexport.o' module into the kernel.
#
# Reference: Stephen G. Kochan and Patrick Wood, "UNIX Shell
# Programming (3rd Edition)," SAMS Publishing (2003).
#
# programmer: ALLAN CRUSE
# written on: 24 JUN 2004
#
version=$(uname -r) 
mapfile=/boot/System.map-$version
# echo $mapfile		# helpful during script debugging

address=$(grep "D sys_call_table" $mapfile | cut -c0-8)
# echo $address		# helpful during script debugging

argument="svctable=$address"
# echo $argument	# helpful during script debugging

/sbin/insmod myexport.o $argument