all: kernel.elf

kernel.elf: kernel.o entry.o
	ld -Tlinker.ld -melf_i386 entry.o kernel.o -o kernel.elf

kernel.o: kernel.c
	gcc -std=gnu99 -m32 -fno-builtin -ffreestanding -nostdlib -Wall -Wextra -c kernel.c

# entry.o: entry.S
# 	as -32 $< -o entry.o

entry.o: entry.asm
	nasm -f elf32 $<

clean:
	rm -f *.o kernel.elf