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【转】Linux 写通用内核开发模块Makefile

今天写了个2.4， 2.6内核开发模块的通用Makefile

主要思想：

#设置你自己的最后要生成的 .o or .ko 文件名称
mod_nn = module_name
objs_mod  = file1.o file2.o ....

VERS=$(findstring 2.6,$(shell uname -r))

ifeq ($(KERNELRELEASE),)
  export MAKEDIR =$(shell pwd)
endif

ifeq ($(VERS26),2.6)
  include $(MAKEDIR)/Makefile26.inc
else
  include $(MAKEDIR)/Makefile24.inc
endif

clean:
  find . -name \*.o -exec rm {} \;

具体Makefile26.inc 与Makfile24.inc你自己还要努力哦，可以参考内核源码中的信息。

还得继续研究了 ......

注意的问题：
  2.4 要在Makefile中定义一些宏， 找出他们为什么？
  2.6 执行$(MAKE)时会调用一次内核Makefile的，不然自己也不知道那么多变量从什么地方来，原来是已经export了的。
 
感觉2.6内核Makefile写的真是很不错，应该好好研究一下。

参考的文章：
  http://linux.ccidnet.com/art/741/20070402/1050783_1.html

本文来自: (www.91linux.com) 详细出处参考：http://www.91linux.com/html/article/kernel/20071022/7747.html

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