On 08/09/2013 08:02 AM, zhaobin xv wrote: > Hello > when I study arnlinux ,I find the word __ARM_ARCH_2__.I know it is > defined by gcc. > I know it may be preprocessor symbol(macros). > but I can't find something about __ARM_ARCH_2__ in gcc manual. It's not there. > so I writte to you > I want to know something about __ARM_ARCH_*__. > which manual I can find __ARM_ARCH_*__ in . We don't know. It may be in one of the ARM CPU-specific specifications, but I haven't found it. Please do not ask again. Andrew.
