function patch_and_build()
{
    fn_mckernel=$1
    fn_ihk=$2

    if [ "$fn_mckernel" != "" ]; then
	pushd @WITH_MCK_SRC@
        patch -p0 < @CMAKE_INSTALL_PREFIX@/bin/${fn_mckernel}.patch
	ret=$?
	if [ $ret -ne 0 ]; then
	    echo "[INTERR] patch failed"
            patch -p0 -R < @CMAKE_INSTALL_PREFIX@/bin/${fn_mckernel}.patch
	    return $ret
	fi
	popd
    fi

    if [ "$fn_ihk" != "" ]; then
	pushd @WITH_MCK_SRC@/ihk
        patch -p0 < @CMAKE_INSTALL_PREFIX@/bin/${fn_ihk}.patch
	ret=$?
	if [ $ret -ne 0 ]; then
	    echo "[INTERR] patch failed"
            patch -p0 -R < @CMAKE_INSTALL_PREFIX@/bin/${fn_ihk}.patch
	    return $ret
	fi
	popd
    fi

    if [ -f ${AUTOTEST_HOME}/bin/config.sh ]; then
	BUILDDIR=$WORKDIR/build/$(uname -r)
    else
	BUILDDIR=@WITH_MCK_BUILD@
    fi

    pushd $BUILDDIR
    make -j install
    popd

    if [ "$fn_mckernel" != "" ]; then
	pushd @WITH_MCK_SRC@
        patch -R -p0 < @CMAKE_INSTALL_PREFIX@/bin/${fn_mckernel}.patch
	popd
    fi

    if [ "$fn_ihk" != "" ]; then
	pushd @WITH_MCK_SRC@/ihk
        patch -R -p0 < @CMAKE_INSTALL_PREFIX@/bin/${fn_ihk}.patch
        popd
    fi

    return 0
}

function detect_cpu_model()
{
    implementer=$(gawk '/CPU implementer/ { print $4; exit; }' /proc/cpuinfo)
    arch=$(gawk '/CPU architecture/ { print $3; exit; }' /proc/cpuinfo)
    var=$(gawk '/CPU variant/ { print $4; exit; }' /proc/cpuinfo)
    part=$(gawk '/CPU part/ { print $4; exit; }' /proc/cpuinfo)

    if [[ "$implementer" == "0x46" ]] && [[ "$arch" == "8" ]] &&
	[[ "$var" == "0x1" ]] && [[ "$part" == "0x001" ]]; then
	cpu_model="a64fx"
    elif [[ "$implementer" == "0x43" ]] && [[ "$arch" == "8" ]] &&
	[[ "$var" == "0x1" ]] && [[ "$part" == "0x0a1" ]]; then
	cpu_model="thunderx"
    else
	cpu_model="unknown"
    fi
}

function init_oom_killer()
{
    echo "[ INFO ] performing \"echo 0 > /proc/sys/vm/min_free_kbytes\""
    min_free_kbytes=$(cat /proc/sys/vm/min_free_kbytes)
    sudo bash -c 'echo 0 > /proc/sys/vm/min_free_kbytes'
}

function fini_oom_killer()
{
    echo "[ INFO ] performing \"echo $min_free_kbytes > /proc/sys/vm/min_free_kbytes\""
    sudo bash -c "echo $min_free_kbytes > /proc/sys/vm/min_free_kbytes"
}

function check_dump() {
    dump=$1
    interactive=$2

    if [ $interactive -eq 1 ]; then
	eclair_opt="-i"
    else
	eclair_opt=
    fi

    expect -c "
set timeout 20
spawn sudo @WITH_MCK@/bin/eclair -d ${dump} -k @WITH_MCK@/smp-arm64/kernel/mckernel.img -l $eclair_opt

expect \"(eclair)\"
send \"set pagination 0\n\"

expect \"(eclair)\"
send \"info threads\n\"

expect \"(eclair)\"
send \"thread 3\n\"

expect \"(eclair)\"
send \"bt\n\"

expect \"(eclair)\"
send \"p/x _end\n\"

expect \"(eclair)\"
send \"quit\n\"

" > ${WORKDIR}/log

    awk -f @CMAKE_INSTALL_PREFIX@/bin/check_dump.awk ${WORKDIR}/log
    ret=$?
}