在 2012年1月6日 上午11:32，Fredrick <[email protected]>写道：
> Hi,
>
> I am not able to understand the DEFINE macro used in
> arch/powerpc/kernel/asm-offsets.c
>
> I suppose the DEFINE is present in
> include/linux/kbuild.h
> where it says
> #define DEFINE(sym, val) \
> asm volatile("\n->" #sym " %0 " #val : : "i" (val))
>
> What does the above mean?
>
>
> -Fredrick
>
>
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>
Oh, This is the inline ASM in gcc, pls refer to
http://ibiblio.org/gferg/ldp/GCC-Inline-Assembly-HOWTO.html
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