3

我正在尝试从 linux x86 机器为 ARM 制作一个 .ko 文件。我尝试了以下 Makefile：

1 obj-m +=helloworldtest_module.o 
2 modules_install:
3     make ARCH=$(ARCH) CC=$(CROSS_COMPILER) -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules
4 clean:
5     make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean

...但是我在给出make -f Makefile ARCH=arm CROSS_COMPILER=arm-linux-gnueabi-gcc命令提示符时出错，如下所示：

make ARCH=arm CC=arm-linux-gnueabi-gcc -C /lib/modules/3.2.0-29-generic/build M=/home/terenesas/sample modules
make[1]: Entering directory `/usr/src/linux-headers-3.2.0-29-generic'
  CC [M]  /home/terenesas/sample/helloworldtest_module.o
In file included from /usr/src/linux-headers-3.2.0-29-generic/arch/arm/include/asm/types.h:4:0,
                 from include/linux/types.h:4,
                 from include/linux/list.h:4,
                 from include/linux/module.h:9,
                 from /home/terenesas/sample/helloworldtest_module.c:2:
include/asm-generic/int-ll64.h:11:29: fatal error: asm/bitsperlong.h: No such file or directory
compilation terminated.
make[2]: *** [/home/terenesas/sample/helloworldtest_module.o] Error 1
make[1]: *** [_module_/home/terenesas/sample] Error 2
make[1]: Leaving directory `/usr/src/linux-headers-3.2.0-29-generic'
make: *** [modules_install] Error 2

我做错了什么？

4

2 回答 2

2

快速修复，更改为：

#include <asm/bitsperlong.h>

至：

#include <asm-generic/bitsperlong.h>
于 2013-02-11T06:28:58.097 回答
2

shell uname -r意味着这个 Makefile 将为您的主机（x86）系统而不是 ARM 构建模块。

您需要指定 ARM 内核的源目录。您可以使用以下 Makefile 来交叉编译您的模块。

生成文件：

CC=$(CROSS_COMPILE)gcc
# If KERNELRELEASE is defined, we've been invoked from the
# kernel build system and can use its language.
ifneq ($(KERNELRELEASE),)
    obj-m := modulename.o 

# Otherwise we were called directly from the command
# line; invoke the kernel build system.
else

    KERNELDIR ?= /path/to/kernel/linux
    PWD  := $(shell pwd)

default:
    ${MAKE} -C ${KERNEL_SOURCE} SUBDIRS=${PWD} modules

clean:
    ${MAKE} -C ${KERNEL_SOURCE} SUBDIRS=${PWD} clean
endif
于 2013-07-20T19:32:56.117 回答