override CC				:= aarch64-none-elf-gcc
override LD				:= aarch64-none-elf-ld
override OBJCOPY		:= aarch64-none-elf-objcopy

override CFLAGS :=			\
    -march=armv8-a			\
	-Iarch/aarch64/include	\
    -D_ARCH_AARCH64

override LDFLAGS :=		\
    -m aarch64elf		\
	-T arch/aarch64/linker.ld

.PHONY: all
all: asagiri.img

.PHONY: run
run: asagiri.img
	if [ "$$(uname -a | grep -i 'microsoft')" ]; then			\
		export IMAGE_PATH=$$(wslpath -wa build/asagiri.img);	\
	else														\
		export IMAGE_PATH=build/asagiri.img;					\
	fi;															\
	qemu-system-aarch64 -M raspi3b -serial null -serial stdio	\
		-kernel u-boot/u-boot.bin								\
		-drive if=sd,format=raw,file=$$IMAGE_PATH


### Bootloader
uboot:
	git clone https://github.com/u-boot/u-boot.git --branch=v2023.10 --depth=1 2>/dev/null | true
	sed -i.bak '/panic("FDT and ATAGS support not compiled in\\n");/c\' u-boot/arch/arm/lib/bootm.c
	SOURCE_DATE_EPOCH=0 $(MAKE) -j$(nproc) -C u-boot rpi_3_defconfig ARCH=arm CROSS_COMPILE=aarch64-none-elf-
	SOURCE_DATE_EPOCH=0 $(MAKE) -j$(nproc) -C u-boot all ARCH=arm CROSS_COMPILE=aarch64-none-elf-