linux内核编译问题——undefined reference to `error'

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内核版本 2.6.33.9

make zImage时出现如下错误：

LD      arch/arm/boot/compressed/vmlinuxarch/arm/boot/compressed/decompress.o(.text+0x23c0): In function `do_decompress':arch/arm/boot/compressed/../../../../lib/decompress_inflate.c:67: undefined reference to `error'arch/arm/boot/compressed/decompress.o(.text+0x23e0):arch/arm/boot/compressed/../../../../lib/decompress_inflate.c:73: undefined reference to `error'arch/arm/boot/compressed/decompress.o(.text+0x2404):arch/arm/boot/compressed/../../../../lib/decompress_inflate.c:80: undefined reference to `error'arch/arm/boot/compressed/decompress.o(.text+0x2468):arch/arm/boot/compressed/../../../../lib/decompress_inflate.c:95: undefined reference to `error'arch/arm/boot/compressed/decompress.o(.text+0x2548):arch/arm/boot/compressed/../../../../lib/decompress_inflate.c:152: undefined reference to `error'/usr/src/rtllinux-3.2-rc1/linux/arch/arm/boot/compressed/Makefile:111: recipe for target 'arch/arm/boot/compressed/vmlinux' failedmake[2]: *** [arch/arm/boot/compressed/vmlinux] Error 1/usr/src/rtllinux-3.2-rc1/linux/arch/arm/boot/Makefile:54: recipe for target 'arch/arm/boot/compressed/vmlinux' failedmake[1]: *** [arch/arm/boot/compressed/vmlinux] Error 2/usr/src/rtllinux-3.2-rc1/linux/arch/arm/Makefile:252: recipe for target 'zImage' failedmake: *** [zImage] Error 2

根据提示中目录 ./arch/arm/boot/compressed/decompress.o找到decompress.c文件，查看源码，发现do_decompress函数并无问题。

void do_decompress(u8 *input, int len, u8 *output, void (*error)(char *x)){        decompress(input, len, NULL, NULL, output, NULL, error); }

然后查看源码中所引用目录及文件，发现./lib/decompress_inflate.c 找到其所在目录，打开文件，发现末尾行对decompress 函数的定义为 #define decompress gunzip

再在当前文件下找到 gunzip 的定义，

STATIC int INIT gunzip(unsigned char *buf, int len,                       int(*fill)(void*, unsigned int),                       int(*flush)(void*, unsigned int),                       unsigned char *out_buf,                       int *pos,                       void(*error_fn)(char *x))

发现所用为error_fn 而非 error，于是改回error后发现仍然出现错误，

参考http://blog.csdn.net/einsteinz/article/details/5757607 文章中所提，将decompress.c 中所有error 改为error_fn 发现可以继续编译。

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