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#!/bin/sh
# (c) Mandriva, Chmouel Boudjnah <chmouel@mandriva.com>
# $Id$
#
# kheader: This shell script regenerate the /boot/kernel.h header for \
# /usr/src/linux/include/{autoconf,version}.h
#
# chkconfig: 235 95 20
# description: This shell script regenerate the /boot/kernel.h header for \
# /usr/src/linux/include/{autoconf,version}.h
#
. /etc/rc.d/init.d/functions
: ${KERNEL_H:=/boot/kernel.h}
: ${HEADERFILE:=${KERNEL_H}-`uname -r`}
[ -d $(dirname $HEADERFILE) ] || exit 0
table() {
k=$(uname -r|sed 's/.*mdk//')
case $k in
fb)
ENT=0;FB=1;SMP=0;SECURE=0;STD=0;
;;
smp)
ENT=0;FB=0;SMP=1;SECURE=0;STD=0;
;;
enterprise)
ENT=1;FB=0;SMP=0;SECURE=0;STD=0;
;;
secure)
ENT=0;FB=0;SMP=0;SECURE=1;STD=0;
;;
*)
ENT=0;FB=0;SMP=0;SECURE=0;STD=1;
esac
}
generate () {
table;
# do not overwrite exsisting header, it confuses
# kernel make and forces it to recompile everything
cat > $HEADERFILE.tmp << EOF
/* This file is automatically generated at boot time. */
#ifndef __BOOT_KERNEL_H_
#define __BOOT_KERNEL_H_
#ifndef __BOOT_KERNEL_SMP
#define __BOOT_KERNEL_SMP $SMP
#endif
#ifndef __BOOT_KERNEL_FB
#define __BOOT_KERNEL_FB $FB
#endif
#ifndef __BOOT_KERNEL_SECURE
#define __BOOT_KERNEL_SECURE $SECURE
#endif
#ifndef __BOOT_KERNEL_ENTERPRISE
#define __BOOT_KERNEL_ENTERPRISE $ENT
#endif
#ifndef __BOOT_KERNEL_UP
#define __BOOT_KERNEL_UP $STD
#endif
#endif
EOF
cmp -s $HEADERFILE $HEADERFILE.tmp || mv -f $HEADERFILE.tmp $HEADERFILE
rm -f $HEADERFILE.tmp
if [ -f $KERNEL_H ] ; then
rm -f $KERNEL_H
fi
ln -sf $HEADERFILE $KERNEL_H
}
function remove_orphaned {
local version= i=
for i in /boot/kernel.h-* /boot/System.map-* /boot/config-*; do
version=${i#*-}
[[ -f /boot/vmlinuz-${version} ]] || rm -f ${i}
done
}
case $1 in
start)
# We don't log this command, because most users don't want to hear this (c) Chmou
generate
touch /var/lock/subsys/kheader
;;
restart)
;;
reload)
generate
;;
stop)
remove_orphaned;
rm -f /var/lock/subsys/kheader
;;
status)
;;
*)
gprintf "Usage: %s\n" "$(basename $0) {start|stop|reload|restart}"
exit 0
;;
esac
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