X32 psABI status

H.J. Lu hjl.tools@gmail.com
Sun Feb 13 14:13:00 GMT 2011


On Sun, Feb 13, 2011 at 12:48 AM, Florian Weimer <fw@deneb.enyo.de> wrote:
> * H. Peter Anvin:
>
>> On 02/12/2011 01:10 PM, Florian Weimer wrote:
>>> Why is the ia32 compatiblity kernel interface used?
>>
>> Because there is no way in hell we're designing in a second
>> compatibility ABI in the kernel (and it has to be a compatibility ABI,
>> because of the pointer size difference.)
>
> Actually, I'm wondering if you can do the translation in user space.
> There already are 32-on-64 implementations in existence, without
> kernel changes (recent Hotspot, LuaJIT, and probably some more).

Please check out the x32 kernel source and provide feedback.

-- 
H.J.



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