Re: [PATCH] Use -fno-unit-at-a-time if gcc supports it

[Andi Kleen]

> You have to options:
> - use attribute ((used)) (implemented since GCC 3.2) to tell GCC that
>   a function/variable should never be removed
> - use -fno-unit-at-a-time.

Another problem is the way 32bit emulation is implemented in many 
64bit ports (all copying from sparc64) and now unified. This assumes 
an ordering between global functions and global assembly too. 

Not for i386 though. I think Andrew has already done some cleanups
in this area recently too, but it may still be dubious.

-Andi
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