内核编译出错：multiple target patterns

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现象

从 svn 仓库check out 一份内核， 然后make (该配置内置了initramfs 文件系统)，第一次make 成功， 但是此后再也不行了！make , make clean 等后都会出错。给开发带来极大麻烦。

 

出错信息如下：

20081007_kernel>make

  CHK     include/linux/version.h

make[1]: `include/asm-arm/mach-types.h' is up to date.

  CHK     include/linux/utsrelease.h

  CHK     include/linux/compile.h

/home/zjujoe/svn/mhlv_2.6/working/songlixin/20081007_kernel/usr/Makefile:41: *** multiple target patterns.  Stop.

make: *** [usr] Error 2

 

20081007_kernel>make clean

  CLEAN   arch/arm/boot/compressed

  CLEAN   arch/arm/boot

  CLEAN   /home/zjujoe/svn/mhlv_2.6/working/songlixin/20081007_kernel

  CLEAN   arch/arm/kernel

  CLEAN   drivers/char

  CLEAN   init

  CLEAN   lib

/home/zjujoe/svn/mhlv_2.6/working/songlixin/20081007_kernel/usr/Makefile:41: *** multiple target patterns.  Stop.

make: *** [_clean_usr] Error 2

 

20081007_kernel>make distclean

/home/zjujoe/svn/mhlv_2.6/working/songlixin/20081007_kernel/usr/Makefile:41: *** multiple target patterns.  Stop.

make: *** [_clean_usr] Error 2

 

 

问题解决

(同时打算再仔细研究一下 Makefile 语法:P)

google 了一下， 查到文档:

http://www.ibm.com/developerworks/cn/linux/l-debugmake.html

 

该文档说make 时使用  -d 参数可以看到大量信息， 试着用 make –d, 最后几行：

This program built for i486-pc-linux-gnu

Reading makefiles...

Reading makefile `scripts/Makefile.build'...

Reading makefile `include/config/auto.conf' (search path) (don't care) (no ~ expansion)...

Reading makefile `scripts/Kbuild.include' (search path) (no ~ expansion)...

Reading makefile `/home/zjujoe/svn/mhlv_2.6/working/songlixin/20081007_kernel/usr/Makefile' (search path) (no ~ expansion)...

Reading makefile `usr/.initramfs_data.cpio.gz.d' (search path) (no ~ expansion)...

/home/zjujoe/svn/mhlv_2.6/working/songlixin/20081007_kernel/usr/Makefile:41: *** multiple target patterns.  Stop.

Reaping losing child 0x080af520 PID 6349

make: *** [usr] Error 2

Removing child 0x080af520 PID 6349 from chain.

 

看一下，usr/.initramfs_data.cpio.gz.d 为initramfs 的目录列表，

试着删除文件 usr/.initramfs_data.cpio.gz.d 再 Make, 居然不出错了！！！

 

20081007_kernel>rm -f usr/.initramfs_data.cpio.gz.d

20081007_kernel>make

  CHK     include/linux/version.h

make[1]: `include/asm-arm/mach-types.h' is up to date.

  CHK     include/linux/utsrelease.h

  CHK     include/linux/compile.h

  MODPOST vmlinux

  Kernel: arch/arm/boot/Image is ready

  Kernel: arch/arm/boot/zImage is ready

  Building modules, stage 2.

  MODPOST 33 modules