HOS = hos
MKISOFS = genisoimage
ISO = $(HOS).iso
QEMU = qemu-system-x86_64

.PHONY: kernel clean qemu iso

# default target: build the kernel and ISO image
all: kernel iso

# build the kernel
kernel:
	make -C kernel

# build the ISO image
iso: $(ISO)

$(ISO): kernel
	cp kernel/$(HOS) iso/boot
	$(MKISOFS) -R -b boot/grub/stage2_eltorito -no-emul-boot \
		-boot-load-size 4 -boot-info-table -o $(ISO) iso

clean:
	make -C kernel clean
	-rm -f $(ISO) iso/boot/$(HOS)

qemu: $(ISO)
	$(QEMU) -cdrom $(ISO) -boot d -m 384 -localtime