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- .POSIX:
- ISODIR := iso
- MULTIBOOT := $(ISODIR)/boot/main.elf
- MAIN := main.img
- .PHONY: clean run
- $(MAIN):
- as -32 boot.S -o boot.o
- gcc -c kernel.c -ffreestanding -m32 -o kernel.o -std=gnu99
- gcc -ffreestanding -m32 -nostdlib -o '$(MULTIBOOT)' -T linker.ld boot.o kernel.o -lgcc
- grub-mkrescue -o '$@' '$(ISODIR)'
- clean:
- rm -f *.o '$(MULTIBOOT)' '$(MAIN)'
- run: $(MAIN)
- qemu-system-i386 -cdrom '$(MAIN)'
- # Would also work.
- #qemu-system-i386 -hda '$(MAIN)'
- #qemu-system-i386 -kernel '$(MULTIBOOT)'
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