linux 内核编译错误总结

 linux 内核编译错误总结

1. include/linux/time.h:174: undefined reference to `__aeabi_uldivmod'

此问题是由于arm-2008q3的Gcc 4.3版，进行了代码优化导致。

 

--- include/linux/time.h 2008-10-09 19:47:23.000000000 +0200 +++ include/linux/time.h.new 2008-10-09 19:47:54.000000000 +0200 @@ -173,6 +173,10 @@  {         ns += a->tv_nsec;         while(unlikely(ns >= NSEC_PER_SEC)) { + /* The following asm() prevents the compiler from + * optimising this loop into a modulo operation. */ + asm("" : "+r"(ns)); +                 ns -= NSEC_PER_SEC;                 a->tv_sec++;         }

 

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