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SubjectRe: X32 psABI status
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On Sun, Feb 13, 2011 at 12:10 PM, Arnd Bergmann <arnd@arndb.de> wrote:
> On Saturday 12 February 2011 20:41:01 H.J. Lu wrote:
>> Hi,
>>
>> We made lots of progresses on x32 pABI:
>>
>> https://sites.google.com/site/x32abi/
>>
>> 1. Kernel interface with syscall is close to be finalized.
>
> Really? I haven't seen this being posted for review yet ;-)
>
> The basic concept looks entirely reasonable to me, but I'm
> curious what drove the decision to start out with the x86_64
> system calls instead of the generic ones.
>
> Since tile was merged, we now have support for compat syscalls
> in the generic syscall ABI. I would have assumed that it
> was possible to just use those if you decide to do a new
> ABI in the first place.
>
> The other option that would have appeared natural to me is
> to just use the existing 32 bit compat ABI with the few
> necessary changes done based on the personality.
>

If you are interested, please check out the x32 kernel to
take a look and provide feedback.

Thanks.

--
H.J.


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