cc=gcc
	ld=ld
	gccpara=-g -m32 -fno-pie -fno-stack-protector -nostdlib -nostdinc -ffreestanding -fno-asynchronous-unwind-tables
	ldpara= -m elf_i386
	disk=disk.img
	INC_CLUDE=-I./
ALL: boot.bin loader.bin kernel.bin
	dd if=/dev/zero of=$(disk) bs=512 count=20480
	dd if=boot/boot.bin of=$(disk) conv=notrunc bs=512 count=1
	dd if=loader/loader.bin of=$(disk) conv=notrunc seek=1
	dd if=kernel/kernel.elf of=$(disk) conv=notrunc bs=512 seek=100
	
boot.bin: boot/bootsector.S
	$(cc) boot/bootsector.S $(gccpara) -c -o boot/bootsector.o	$(INC_CLUDE)
	$(ld) boot/bootsector.o  $(ldpara)  -Ttext=0x7c00 -o boot/boot.elf
	objcopy -O binary boot/boot.elf boot/boot.bin 

loader.bin:
	$(cc) loader/loader_entry.S $(gccpara) -c -o loader/loader_entry.o $(INC_CLUDE)
	$(cc) loader/loader.c  $(gccpara) -c -o loader/loader.o $(INC_CLUDE)
	$(cc) loader/loader_32.c  $(gccpara) -c -o loader/loader_32.o $(INC_CLUDE)
	$(ld) loader/loader_entry.o loader/loader.o loader/loader_32.o -m elf_i386 -Ttext=0x8000 -O0 -o loader/loader.elf $(INC_CLUDE)
	objcopy -O binary loader/loader.elf loader/loader.bin

kernel.bin:
	$(cc) kernel/kernel_start.S $(gccpara) -c -o kernel/kernel_start.o $(INC_CLUDE)
	$(cc) kernel/kernel.c $(gccpara) -c -o kernel/kernel.o $(INC_CLUDE)
	$(cc) kernel/irq/irq.c $(gccpara) -c -o kernel/irq/irq.o $(INC_CLUDE)
	$(cc) kernel/time/time.c $(gccpara) -c -o kernel/time/time.o $(INC_CLUDE)
	$(ld) kernel/kernel_start.o kernel/kernel.o kernel/irq/irq.o kernel/time/time.o  $(ldpara) -Ttext=0x10000 -o  kernel/kernel.elf


clean:
	find . -name "*.o"  | xargs rm -f
	find . -name "*.bin"  | xargs rm -f
	find . -name "*.elf"  | xargs rm -f