#!/bin/sh

PRGNAM=kernel-modules
VERSION=${VERSION:-2.4.33.3}
ARCH=${ARCH:-s390x}
BUILD=${BUILD:-1}

CWD=$(pwd)
TMP=${TMP:-/tmp}
PKG=${TMP}/package-${PRGNAM}

NUMJOBS=${NUMJOBS:--j3}

if [ "${ARCH}" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
elif [ "${ARCH}" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
elif [ "${ARCH}" = "s390x" ]; then
  SLKCFLAGS="-O2"
elif [ "${ARCH}" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
fi

rm -rf ${TMP}/${PRGNAM}-${VERSION} ${PKG}
mkdir -p ${TMP}/${PRGNAM}-${VERSION}/usr/src ${PKG}
cd ${TMP}/${PRGNAM}-${VERSION}/usr/src || exit 1
echo "Unpacking the tarball.  Please wait..."
tar -jxf ${CWD}/../../k/linux-${VERSION}.tar.bz2

cd linux-${VERSION} || exit 1
chown -R root.root .
chmod -R a-s,u+rw,go-w .

zcat ${CWD}/../../k/s390-patches/lnx24333-36.timer.gz | patch -p1 || exit 1
cat ${CWD}/../../k/s390-patches/reiserfs.strcpy.fix.diff | patch -p1 || exit 1
cat ${CWD}/../../k/s390-patches/dasd_int.h.diff | patch -p1 || exit 1
cat ${CWD}/../../k/s390-patches/chandev.c.diff | patch -p1 || exit 1
cat ${CWD}/../../k/s390-patches/tape.h.diff | patch -p1 || exit 1
cat ${CWD}/../../k/s390-patches/tubttybld.c.diff | patch -p1 || exit 1
cat ${CWD}/../../k/s390-patches/qeth.c.diff | patch -p1 || exit 1
cat ${CWD}/../../k/s390-patches/lcs.c.diff | patch -p1 || exit 1

cp -vpi ${CWD}/../../k/config-s390-${VERSION} .config || exit 1
ARCH="s390" make oldconfig || exit 1
ARCH="s390" make dep || exit 1
ARCH="s390" make ${NUMJOBS} modules || exit 1
ARCH="s390" make modules_install INSTALL_MOD_PATH=${PKG} || exit 1

( mkdir -p ${PKG}/etc/rc.d/
  cd ${PKG}/etc/rc.d/
  cp ${CWD}/rc.modules.new .
  cat ${CWD}/rc.modules.s390.diff | patch -p0 --verbose
)

( cd ${PKG}/lib/modules/${VERSION}
  rm -rf build ; ln -s /usr/src/linux-${VERSION} build
  find . -type f -name "*.o" | xargs gzip -9
)

( cd ${PKG}
  tar -zxvf ${CWD}/../../../extra/cpint-1.1.6/cpint-1.1.6_2.4.33.3-s390x-1.tgz \
         lib/modules/${VERSION}/misc/cpint.o.gz
  chown -R root.root lib/modules/
)
 
depmod -a -b ${PKG} ${VERSION}

mkdir ${PKG}/install
cd ${PKG}/install
cat ${CWD}/slack-desc > slack-desc 

cd ${PKG}
makepkg -c n -l y ../${PRGNAM}-${VERSION}-${ARCH}-${BUILD}.tgz