#!/bin/bash


PACKAGE_CONFIG=${PACKAGE_CONFIG:-package.config}
. ${PACKAGE_CONFIG}


CUR_DIR=`dirname $(realpath $0)`

if [ ! -e "${CROSS_COMPILE}gcc" ]; then
	CROSS_COMPILE=aarch64-linux-gnu-
fi

FOLDER_NAME=${FOLDER_NAME:build}
FOLDER="`pwd`/${FOLDER_NAME}/"
KBUILD_BUILD_USER=acosail
KBUILD_BUILD_HOST=acosail
ARCH=arm64

export ARCH CROSS_COMPILE KBUILD_BUILD_USER KBUILD_BUILD_HOST

PARAMS="-C ${SRC} INSTALL_MOD_STRIP=1 O=${FOLDER} -j${CORES}"

echo "build kernel"

if [ ! -d "${FOLDER}" ]; then
	mkdir ${FOLDER}
	cp $CUR_DIR/conf/${CONFIG_NAME} ${FOLDER}.config
fi

CMD=

if [ "_$1" == "_deb" ]; then
	echo "build debs"
	CMD=bindeb-pkg
	RET=$?
elif [ "_$1" == "_menu" ]; then
	CMD=menuconfig
elif [ "_$1" == "_c" ]; then
	CMD=
elif [ "_$1" == "_mrproper" ]; then
	CMD=mrproper
else
	CMD=targz-pkg
fi

make ${PARAMS} ${CMD}
RET=$?

if [ "$RET" -eq 0 ]; then
	if [ "_${CMD}" == "_targz-pkg" ]; then
		echo "copy kernel tar file to images/"
		cp ${FOLDER}linux-5.15.80.bpo*.tar.gz $CUR_DIR/images/linux-5.15.0+-arm64.tar.gz
	fi

	cd $CUR_DIR
	echo "current version:"
	cat ${FOLDER}/include/config/kernel.release
	echo "done"
else
	echo "kernel build error!"
fi

exit $RET