makefile

一些linux和uboot的学习笔记

CC=arm-linux-gcc
OBJCOPY=arm-linux-objcopy
LD=arm-linux-ld
AS=arm-linux-as
CFLAGS=-c -msoft-float -gdwarf-2 -nostdlib
all:
	make boot.bin
boot.bin:boot
	$(OBJCOPY) -O binary \
		--only-section=.init\
		--only-section=.text\
		--only-section=.rodata\
		--only-section=.data\
		--only-section=.bbs boot boot.bin
boot:boot.o main.o sys_init.o uart.o lib_at91sam9261.o dataflash.o
	$(CC) -static -nostdlib -msoft-float -T 9261.lds   boot.o main.o sys_init.o uart.o lib_at91sam9261.o dataflash.o -o boot \
 -L/home/realsil/arm/arm-linux/lib -lc  -L/home/realsil/arm/lib/gcc/arm-linux/4.0.4 -lgcc 
boot.o:boot.s AT91SAM9261_inc.h
	$(AS) -mapcs-32 --gdwarf2 -I/home/realsil/SAM9261 -o boot.o boot.s
main.o:main.c	
	$(CC) $(CFLAGS)  main.c
sys_init.o:sys_init.c
	$(CC) $(CFLAGS)  sys_init.c
uart.o:uart.c
	$(CC) $(CFLAGS) -I/home/realsil/arm/include uart.c
lib_at91sam9261.o:lib_at91sam9261.c 
	$(CC) $(CFLAGS)  lib_at91sam9261.c
dataflash.o:dataflash.c
	$(CC) $(CFLAGS)  dataflash.c
clean:
	rm boot boot.bin *.o