#!/bin/bash
# -- This script uses Bash extensions

# Local installation directly into /lib/modules and /boot.
# Run this from your build directory

# VERSION = 2
# PATCHLEVEL = 4
# SUBLEVEL = 2
# EXTRAVERSION = -ac3
# EXTRAVERSION =-ac3
# KERNELRELEASE=$(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
# Unfortunately, these days we also have $(localver)

# No workie because 1. spaces around '=', 2. line feeds are eaten
# eval $(egrep "^VERSION *= *|^PATCHLEVEL *= *|^SUBLEVEL *= *|^EXTRAVERSION *= *" Makefile)

readmakefile () {
  v=0
  p=0
  s=0
  e=0
  while read key equ val; do
    if [ $v = 1 -a $p = 1 -a $s = 1 -a $e = 1 ]; then
      break;
    fi

    # Woops, no space after the equal sign
    # if [[ "$val" == "" && "$equ" == '=?*' ]]   <--- breaks on bash 3.0
    if [ "$val" = "" -a "${equ:0:1}" = "=" ]; then
      val=${equ:1}
      equ="="
    fi

    if [ "$equ" = "=" ]; then
      case "$key" in
      VERSION)       VERSION="$val";      v=1 ;;
      PATCHLEVEL)    PATCHLEVEL="$val";   p=1 ;;
      SUBLEVEL)      SUBLEVEL="$val";     s=1 ;;
      EXTRAVERSION)  EXTRAVERSION="$val"; e=1 ;; 
      esac
    fi

  done
  echo ${VERSION}.${PATCHLEVEL}.${SUBLEVEL}${EXTRAVERSION}
}

#
# main()
#

set -e

KID=$(cat include/config/kernel.release)
if [ -z "$KID" ]; then
  KID=$(readmakefile < Makefile)
fi
KARCH=$(readlink include/asm | awk -F- '{ print $2}')
if [ "$KARCH" = "i386" ]; then
  ARCH=i386
elif [ "$KARCH" = "s390" ]; then
  ARCH=s390
elif [ "$KARCH" = "s390x" ]; then
  ARCH=s390
elif [ "$KARCH" = "x86_64" ]; then
  ARCH=x86_64
elif [ "$KARCH" = "x86" ]; then
  ARCH=i386	# Temporary. This works because it's not used below.
else
  echo "Unknown architecture $KARCH" >&2
  exit 1
fi

if [ "$ARCH" = "s390" ]; then
  BOOTDIR=/mnt/data/zipl
else
  BOOTDIR=/boot
fi

echo "Installing $KID ..."
make modules_install

echo "Copying $KID to $BOOTDIR for $KARCH ..."
#if [ "$PATCHLEVEL" != "6" ]; then	# Not needed on 2.6, we have kallsyms.
#  cp vmlinux $BOOTDIR/vmlinux-$KID
#fi
cp System.map $BOOTDIR/System.map-$KID
if [ "$ARCH" = "s390" ]; then
  cp arch/$KARCH/boot/image $BOOTDIR/vmlinuz-$KID
else
  cp arch/$KARCH/boot/bzImage $BOOTDIR/vmlinuz-$KID
fi

echo "Done with $KID"