第3课: 点亮开发板led灯

ame-pointer -ffreestanding
led.bin:led.elf
arm-linux-objcopy -O binary -S led.elf led.bin
arm-linux-objdump -D -m arm led.elf > led.dis
led.elf:led.o crt0.o
arm-linux-ld -Tleds.lds crt0.o led.o -o led.elf
led.o:led.c led.h
arm-linux-gcc $(CFLAGS) -c led.c -o led.o
crt0.o:crt0.s
arm-linux-gcc $(CFLAGS) -c crt0.s -o crt0.o
clean:
rm -f led.bin led.dis led.elf led.o crt0.o