android_kernel_xiaomi_sm8450/build.config.msm.common

CONFIG_DIR=arch/${ARCH}/configs
CC="${ROOT_DIR}/common/scripts/gcc-wrapper.py ${CC}"

################################################################################
## DTB general support
DTB_DIR=vendor/qcom

function clean_dtbs() {
	rm -rf ${OUT_DIR}/arch/${ARCH}/boot/dts
}
append_cmd POST_DEFCONFIG_CMDS 'clean_dtbs'

FILES+="
arch/${ARCH}/boot/dts/${DTB_DIR}/*.dtb*
"

################################################################################
## DT Overlay
function add_dt_overlay_defconfig() {
	${KERNEL_DIR}/scripts/config --file ${OUT_DIR}/.config \
	  -e BUILD_ARM64_DT_OVERLAY
	(cd ${KERNEL_DIR} && make "${TOOL_ARGS[@]}" O=${OUT_DIR} ${MAKE_ARGS} olddefconfig)
}
if [ ! -z $DT_OVERLAY_SUPPORT ] && [ ! $DT_OVERLAY_SUPPORT -eq "0" ]; then
	append_cmd POST_DEFCONFIG_CMDS 'add_dt_overlay_defconfig'
fi

################################################################################
## Variant Selection
if [ -z "${VARIANT}" ] || [ "${VARIANT}" == "default" ]; then
	VARIANT="${VARIANTS[0]}"
fi

if [ ! -z $MSM_ARCH ]; then
	BRANCH+=-${MSM_ARCH}
fi

if [ ! -z $VARIANT ]; then
	BRANCH+=-${VARIANT}
fi

################################################################################
## defconfigs

# Helper function to let build.config files merge config fragments
# Usage: append_cmd PRE_DEFCONFIG_CMDS 'merge_defconfig_fragment ${DEFCONFIG} ${fragment_config}'
DEFCONFIG_FRAGMENTS=""
function merge_defconfig_fragments() {
	if ( [ -z "${DEFCONFIG_FRAGMENTS}" ] ||
	   [ "${DEFCONFIG_FRAGMENTS}" = "${DEFCONFIG}" ] ); then
		echo "No defconfig fragments for ${DEFCONFIG}"
		return
	fi
	KCONFIG_CONFIG=${KERNEL_DIR}/arch/${ARCH}/configs/${DEFCONFIG} \
		${KERNEL_DIR}/scripts/kconfig/merge_config.sh \
		-m -r ${DEFCONFIG_FRAGMENTS}
}
append_cmd PRE_DEFCONFIG_CMDS "merge_defconfig_fragments"

# Wrapper function around merge_defconfig_fragment to reduce repeated logic
# Usage: apply_defconfig_fragment ${KERNEL_DIR}/cuttlefish.fragment cuttlefish-gki_defconfig
function apply_defconfig_fragment() {
	FRAGMENT_CONFIG=$1
	if [ -z "${DEFCONFIG_FRAGMENTS}" ]; then
		DEFCONFIG_FRAGMENTS="${KERNEL_DIR}/arch/${ARCH}/configs/${DEFCONFIG}"
	fi
	DEFCONFIG_FRAGMENTS="${DEFCONFIG_FRAGMENTS} $1"
	DEFCONFIG="${2:-${DEFCONFIG}}"
}

function menuconfig() {
	set +x
	local orig_defconfig=$(mktemp)
	local orig_config=$(mktemp)

	cp ${OUT_DIR}/.config ${orig_config}
	(cd ${KERNEL_DIR} && make "${TOOL_ARGS[@]}" O=${OUT_DIR} ${MAKE_ARGS} savedefconfig)
	mv ${OUT_DIR}/defconfig ${orig_defconfig}

	(cd ${KERNEL_DIR} && make "${TOOL_ARGS[@]}" O=${OUT_DIR} ${MAKE_ARGS} ${1:-menuconfig})
	(cd ${KERNEL_DIR} && make "${TOOL_ARGS[@]}" O=${OUT_DIR} ${MAKE_ARGS} savedefconfig)
	mv ${OUT_DIR}/defconfig ${KERNEL_DIR}/arch/${ARCH}/configs/${DEFCONFIG}

	if [ -z "${FRAGMENT_CONFIG}" ]; then
		rm "${orig_config}" "${orig_defconfig}"
		exit
	fi

	local new_defconfig="${KERNEL_DIR}/arch/${ARCH}/configs/${DEFCONFIG}"
	local new_config="${OUT_DIR}/.config"

	# CONFIGs to be added
	# 'defconfig' file should have been generated.
	# Diff this with the 'defconfig_base' from the previous step and extract only the lines that were added
	# Finally, remove the "+" from the beginning of the lines and append it to the FRAGMENT
	diff -u ${orig_defconfig} ${new_defconfig} | grep "^+CONFIG_" | sed 's/^.//' >> ${FRAGMENT_CONFIG}

	# CONFIGs to be removed
	configs_to_remove=`diff -u ${orig_defconfig} ${new_defconfig} | grep "^-CONFIG_" | sed 's/^.//'`
	for config_del in $configs_to_remove; do
		sed -i "/$config_del/d" ${FRAGMENT_CONFIG}
	done

	# CONFIGs that are unset in base defconfig (# CONFIG_X is not set), but enabled in fragments,
	# the diff is shown as: -# CONFIG_X is not set. Hence, explicitly set them in the config fragments.
	configs_to_set=`diff -u ${orig_defconfig} ${new_defconfig} | grep "^-# CONFIG_" | awk '{print $2}'`
	for config_to_set in $configs_to_set; do
		# The CONFIG could be set as 'm' in the previous steps. Ignore setting them to 'y'
		if ! grep -q "$config_to_set" ${FRAGMENT_CONFIG}; then
			echo $config_to_set=y >> ${FRAGMENT_CONFIG}
		fi
	done

	# CONFIGs that are set in base defconfig (or lower fragment), but wanted it to be disabled in FRAG_CONFIG
	diff -u ${orig_config} ${new_config} | grep "^+# CONFIG_" | sed 's/^.//' >> ${FRAGMENT_CONFIG}

	echo
	echo "Updated ${FRAGMENT_CONFIG}"
	echo

	rm "${orig_config}" "${orig_defconfig}"
	exit
}
export -f menuconfig
# Configuration options to build images for MSM targets
# Must be included AFTER build.config.msm.<target>

MODULES_LIST=${KERNEL_DIR}/modules.list.${CONFIG_TARGET}

# boot image macros
BUILD_BOOT_IMG=1
BUILD_INITRAMFS=1

################################################################################
## DT Overlay
LIBUFDT_PREBUILTS_BIN=tools/libufdt/utils/src
function make_dtbo_img() {
	mkdir -p ${DIST_DIR}/
	mkdtboimg.py create ${DIST_DIR}/dtbo.img --page_size=${PAGE_SIZE} ${DIST_DIR}/*.dtbo
}
if [ ! -z $DT_OVERLAY_SUPPORT ] && [ ! $DT_OVERLAY_SUPPORT -eq "0" ]; then
	append_cmd DIST_CMDS 'make_dtbo_img'
fi

################################################################################
## Miscellaneous
function determine_result_image {
	if [[ $(${KERNEL_DIR}/scripts/config \
		--file ${OUT_DIR}/.config \
		--state CONFIG_BUILD_${ARCH^^}_UNCOMPRESSED_KERNEL) \
		== 'y' ]];
	then
		KERNEL_BINARY=Image
	else
		KERNEL_BINARY=Image.gz
	fi
}
append_cmd DIST_CMDS 'determine_result_image'