zhaobin xv xvzhaobin@gmail.com
Fri Aug 9 07:02:00 GMT 2013

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.

so  I writte to you
I want to know something about __ARM_ARCH_*__.
which manual I can find __ARM_ARCH_*__ in .
thank you

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