CC=i586-elf-gcc LD=i586-elf-ld CFLAGS = -Wall -nostdlib -nostdinc -ffreestanding -DKERNEL_SOS LDFLAGS = --warn-common OBJECTS = bootstrap/multiboot.o \ hwcore/idt.o hwcore/gdt.o \ hwcore/exception.o hwcore/exception_wrappers.o \ hwcore/irq.o hwcore/irq_wrappers.o hwcore/i8259.o \ hwcore/i8254.o drivers/x86_videomem.o drivers/bochs.o \ sos/klibc.o sos/main.o KERNEL_OBJ = sos.elf MULTIBOOT_IMAGE = cdrom.iso PWD := $(shell pwd) # Main target all: $(MULTIBOOT_IMAGE) $(MULTIBOOT_IMAGE): $(KERNEL_OBJ) # ./support/build_image.sh $@ $< if [ ! -e cdrom/boot/grub/stage2_eltorito ]; then \ mkdir -p cdrom/boot/grub; \ echo "Please copy grub's stage2_eltorito to cdrom/boot/grub."; \ exit -1; \ fi cp $(KERNEL_OBJ) cdrom echo timeout 0 > cdrom/boot/grub/menu.lst echo title Simple OS >> cdrom/boot/grub/menu.lst echo kernel /$(KERNEL_OBJ) >> cdrom/boot/grub/menu.lst genisoimage -R -b boot/grub/stage2_eltorito -no-emul-boot -boot-load-size 4 \ -boot-info-table -input-charset ascii -A SOS -o $(MULTIBOOT_IMAGE) cdrom $(KERNEL_OBJ): $(OBJECTS) ./support/sos.lds $(LD) $(LDFLAGS) -T ./support/sos.lds -o $@ $(OBJECTS) -nm -C $@ | cut -d ' ' -f 1,3 > sos.map -include .mkvars # Create objects from C source code %.o: %.c $(CC) -I$(PWD) -c $< $(CFLAGS) -o $@ # Create objects from assembler (.S) source code %.o: %.S $(CC) -I$(PWD) -c $< $(CFLAGS) -DASM_SOURCE=1 -o $@ # Clean directory clean: $(RM) *.img *.iso *.o mtoolsrc *~ menu.txt *.img *.elf *.bin *.map $(RM) *.log *.out bochs* $(RM) bootstrap/*.o bootstrap/*~ $(RM) drivers/*.o drivers/*~ $(RM) hwcore/*.o hwcore/*~ $(RM) sos/*.o sos/*~ $(RM) support/*~ $(RM) extra/*~