On Monday 11 April 2011, Guan Xuetao wrote: > --- a/include/asm-generic/bitsperlong.h > +++ b/include/asm-generic/bitsperlong.h > @@ -9,7 +9,11 @@ > * to decide it, but rather check a compiler provided macro. > */ > #ifndef __BITS_PER_LONG > -#define __BITS_PER_LONG 32 > +# ifdef CONFIG_64BIT > +# define __BITS_PER_LONG 64 > +# else > +# define __BITS_PER_LONG 32 > +# endif /* CONFIG_64BIT */ > #endif > Unfortunately, this does not work, because the __BITS_PER_LONG definition is meant for user space. You have to make this depend on a preprocessor macro that is provided by the compiler based on the command line switches (e.g. -m64) that a use could pass to the compiler. In user space, the CONFIG_* symbols are meaningless. Arnd -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
