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1.Ê×ÏÈÊÇ»ñµÃlinuxÄÚºËÔ´Â룬ºÃÏñÊÇ·Ï»°£¬ÏÂÔØµØÖ·ÈçÏ£ºftp://ftp.kernel.org/pub/linux/kernel/v2.6/ÏÂÔØ£º
linux-2.6.16.22.tar.bz2  patch-2.6.22.6.bz2
ÉÏÃæÒ»²½ÐèҪ˵Ã÷µÄÊÇÒ»°ã¶øÑÔ£¬linuxÄں˵ĸ÷¸ö²¹¶¡ÎļþÊǸù¾Ýij¸ölinuxÄں˵İ汾ºÅÀ´×÷µÄpatch¡£
½«ÉÏÃæµÄÁ½¸öѹËõÎļþ½âѹ:
tar jxvf linux-2.6.22.tar.bz2
tar jxvf patch-2.6.22.6.bz2
cd linux-2.6.22
patch -p1 < ../patch-2.6.22.6
2.linuxÄÚºËÔ´Âë½á¹¹ºÍMakefile·ÖÎö
linuxÄÚºËÔ´ÂëµÄ½á¹¹±È½ÏÇåÎú£¬ÎҾͲ»ÂÞàÂÁË£¬Èç¹û¶ÔÓÚlinuxÔ´ÂëµÄ½á¹¹²»ÊǺÜÁ˽âµÄ»°£¬¿ÉÒԲο¼ÏÂÃæµÄÎÄÕÂ
http://www.kerneltravel.net/kernel-book/%E7%AC%AC%E4%B8%80%E7%AB%A0%E8%B5%B0%E8%BF%9Blinux/1.6.2.htm
¶ÔÓÚÒÆÖ²linuxµ½s3c2410¶øÑÔ£¬Ö÷ÒªµÄ¹¤×÷Ŀ¼ÊÇ/arch/arm/Ï¡£
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The Makefiles have five parts:
    Makefile        the top Makefile. ¶¥²ãµÄMakefile
    .config            the kernel configuration file.ÅäÖÃÎļþ£¬ÔÚ¶¥²ãµÄMakefileÖÐʹÓÃ.configÀ´¾ö¶¨Ê¹ÓÃÄÇЩÎļþ
    arch/$(ARCH)/Makefile    the arch Makefile.ºÍÌåϵƽ̨Ïà¹ØµÄMakefile
    scripts/Makefile.*    common rules etc. for all kbuild Makefiles.Makefile¹«ÓõÄͨÓùæÔò£¬½Å±¾µÈ¡£
    kbuild Makefiles    there are about 500 of these.¸÷¸ö×ÓĿ¼ÏµÄMakefile£¬±»¸ÃÉϲãµÄMakefileµ÷ÓÃ
The top Makefile reads the .config file, which comes from the kernel
configuration process.
¶¥²ãµÄMakefile¶ÁÈ¡.configÖеÄÐÅÏ¢£¬ÕâЩ.configÐÅÏ¢À´×ÔÓÚmake menuconfigÖÐ
The top Makefile is responsible for building two major products: vmlinux
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# head -n 1 /etc/issue # ²é¿´²Ù×÷ϵͳ°æ±¾
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