#!/bin/sh
#
#
# Copyright 1999 Björn Ekwall <bj0rn@blox.se>
#
# This file is part of the Linux modutils.
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation; either version 2 of the License, or (at your
# option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
##########################################################################
#
# This is a silly little script that creates a list of kernel symbols
# and calls "depmod -F symfile -a Kernel_Version".
#
# You can use it immediately after doing "make modules_install"
# while building the kernel and its modules.
#
# Do a "cd" to the base directory of the kernel source tree
# and execute this script.
#
##########################################################################

for i in .config System.map vmlinux Makefile
do
	if [ ! -f $i ]
	then
		echo "Oops, $i is missing! Is this directory really a kernel source directory?" > /dev/tty
		exit 1
	fi
done

eval `grep -F 'VERSION =
PATCHLEVEL =
SUBLEVEL =
EXTRAVERSION =
' Makefile | sed 's/ //g'`
FORCE=${VERSION}.${PATCHLEVEL}.${SUBLEVEL}${EXTRAVERSION}

OUT=.depmodinfo
rm -f $OUT

source .config
if [ A$CONFIG_MODVERSIONS = Ay ]
then
	echo "Aha! A versioned kernel!" > /dev/tty
	echo "I will try to extract the exported versioned symbols." > /dev/tty
	echo "I will also fake some unversioned symbols for you," > /dev/tty
	echo "although you had better verify that they really exist..." > /dev/tty
	echo "...or add some more if 'depmod' below complains..." > /dev/tty
	for i in Using_Versions \
		__down_failed \
		__down_failed_interruptible \
		__down_failed_trylock \
		__get_user_1 \
		__get_user_2 \
		__get_user_4 \
		__put_user_1 \
		__put_user_2 \
		__put_user_4 \
		__up_wakeup \
		up_wakeup \
		__do_delay
	do
		echo $i > /dev/tty
		echo "vmlinux T $i" >> $OUT
	done

	strings vmlinux | grep "_R[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]$" | sed 's/^/vmlinux T /' >> $OUT
else
	grep ' [A-Z] ' System.map >> $OUT
fi

echo Here we go...
set -x
/sbin/depmod -F $OUT -e -a $FORCE