主机是Ubuntu 10.10,目标板上配置的linux2.6.33版本的内核,前两天碰到的问题是,在编写好的驱动目录下面使用make命令后报错如下:www.linuxidc.com@ubuntu:~/Drivers$ make make -C /home/dickens/linux-2.6.33 M=/home/dickens/Drivers modules make[1]: 正在进入目录 `/home/dickens/linux-2.6.33" CC [M] /home/dickens/Drivers/Led.o In file included from include/linux/prefetch.h:14, from include/linux/list.h:6, from include/linux/kobject.h:20, from include/linux/device.h:17, from include/linux/dma-mapping.h:4, from /home/dickens/Drivers/Led.c:2: /home/dickens/linux-2.6.33/arch/x86/include/asm/processor.h:117: error: ‘CONFIG_X86_L1_CACHE_SHIFT’ undeclared here (not in a function) /home/dickens/linux-2.6.33/arch/x86/include/asm/processor.h:117: error: requested alignment is not a constant /home/dickens/linux-2.6.33/arch/x86/include/asm/processor.h:163: warning: "cache_line_size" redefined include/linux/cache.h:64: note: this is the location of the previous definition /home/dickens/linux-2.6.33/arch/x86/include/asm/processor.h:243: error: requested alignment is not a constant /home/dickens/linux-2.6.33/arch/x86/include/asm/processor.h:274: error: requested alignment is not a constant /home/dickens/linux-2.6.33/arch/x86/include/asm/processor.h: In function ‘native_get_debugreg’: /home/dickens/linux-2.6.33/arch/x86/include/asm/processor.h:506: error: invalid application of ‘sizeof’ to incomplete type ‘struct bug_entry’ /home/dickens/linux-2.6.33/arch/x86/include/asm/processor.h: In function ‘native_set_debugreg’: /home/dickens/linux-2.6.33/arch/x86/include/asm/processor.h:533: error: invalid application of ‘sizeof’ to incomplete type ‘struct bug_entry这些只是错误的一部分,我的makefile写法如下,ARCH=armCROSS_COMPILE=arm-linux- obj-m := Led.o KDIR := /home/dickens/linux-2.6.33 PWD := $(shell pwd) modules: $(MAKE) -C $(KDIR) M=$(PWD) modules clean: $(MAKE) -C $(KDIR) M=$(PWD) clean其中,我的内核源码放在/home/dickens/linux-2.6.33 ,按道理路径不会有问题,我所用到的头文件也都存在,不应该有这么多错误,后来仔细分析发现,报错基本上都是在x86的体系文件下,仔细想想,目标板应该是Arm体系,固然不会是x86的结构,在网上搜了很久发现,在linux的顶层Makefile文件里面,有一个ARCH= 的选项,对比后发现,我下载的内核里面这一项写的事ARCH=x86 ,后来我把这一项直接改成ARCH=arm ,保存,然后回到驱动程序的目录下,make 编译通过!