#/bin/bash

echo "$1 $2 $3"

case "$1" in
    Clean)
        echo "********************************************************************************"
        echo "* Clean Kernel                                                                 *"
        echo "********************************************************************************"

        pushd linux-2.6.29
        make clean
        popd
        pushd modules
        make clean
        popd
        echo " It's done... "
        exit
        ;;
    *)
        PROJECT_NAME=aries
        HW_BOARD_REV="02"
        ;;
esac

if [ "$CPU_JOB_NUM" = "" ] ; then
    CPU_JOB_NUM=8
fi

TOOLCHAIN=`pwd`/../arm-2009q3/bin
TOOLCHAIN_PREFIX=arm-none-linux-gnueabi-
KERNEL_BUILD_DIR=linux-2.6.29

export INSTALL_MOD_PATH=/home/jhhudso/samsung/initramfs
export HOSTFLAGS="-Os"

export PRJROOT=$PWD
export PROJECT_NAME
export HW_BOARD_REV

export LD_LIBRARY_PATH=.:${TOOLCHAIN}/../lib

echo "************************************************************"
echo "* EXPORT VARIABLE                                      *"
echo "************************************************************"
echo "PRJROOT=$PRJROOT"
echo "PROJECT_NAME=$PROJECT_NAME"
echo "HW_BOARD_REV=$HW_BOARD_REV"
echo "************************************************************"

BUILD_MODULE()
{
    echo "************************************************************"
    echo "* BUILD_MODULE                                             *"
    echo "************************************************************"
    echo

    pushd modules

        make -j$CPU_JOB_NUM ARCH=arm CROSS_COMPILE=$TOOLCHAIN/$TOOLCHAIN_PREFIX INSTALL_MOD_PATH=$INSTALL_MOD_PATH install

    popd
}

BUILD_KERNEL()
{
    echo "************************************************************"
    echo "*        BUILD_KERNEL                                      *"
    echo "************************************************************"
    echo

    pushd $KERNEL_BUILD_DIR

    export KDIR=`pwd`

    #make ARCH=arm $PROJECT_NAME"_rev"$HW_BOARD_REV"_defconfig"

    # make kernel
    make -j$CPU_JOB_NUM HOSTCFLAGS="$HOSTFLAGS" ARCH=arm CROSS_COMPILE=$TOOLCHAIN/$TOOLCHAIN_PREFIX

    # install kernel modules to initramfs directory
    make -j$CPU_JOB_NUM HOSTCFLAGS="$HOSTFLAGS" ARCH=arm CROSS_COMPILE=$TOOLCHAIN/$TOOLCHAIN_PREFIX INSTALL_MOD_PATH=$INSTALL_MOD_PATH modules_install

    popd

    BUILD_MODULE

    # Clean up duplicate copy of modules
    rm -rf $INSTALL_MOD_PATH/lib/modules/2.6.29/

    pushd $KERNEL_BUILD_DIR

    # Install initramfs into Kernel
    make -j$CPU_JOB_NUM HOSTCFLAGS="$HOSTFLAGS" ARCH=arm CROSS_COMPILE=$TOOLCHAIN/$TOOLCHAIN_PREFIX

    popd
}

# print title
PRINT_USAGE()
{
    echo "************************************************************"
    echo "* PLEASE TRY AGAIN                                         *"
    echo "************************************************************"
    echo
}

PRINT_TITLE()
{
    echo
    echo "************************************************************"
    echo "*                     MAKE PACKAGES"
    echo "************************************************************"
    echo "* 1. kernel : zImage"
    echo "* 2. modules"
    echo "************************************************************"
}

##############################################################
#                   MAIN FUNCTION                            #
##############################################################
if [ $# -gt 3 ]
then
    echo
    echo "**************************************************************"
    echo "*  Option Error                                              *"
    PRINT_USAGE
    exit 1
fi

START_TIME=`date +%s`

PRINT_TITLE

BUILD_KERNEL
END_TIME=`date +%s`
let "ELAPSED_TIME=$END_TIME-$START_TIME"
echo "Total compile time is $ELAPSED_TIME seconds"