AMD64 ABI compatibility

[Nicolas Alt]

That's cool! What version would you do the patch for?
Apart from wine, I guess mingw should have the biggest need for the  
MS ABI in order to support AMD64.

Nicolas


On Jul 10, 2007, at 5:59 , Kai Tietz wrote:
>>>> Windows and GCC ABIs are on x86-64 more different than that (they
> was
>>>> historically developed in parallel). GCC 4.3 will support attribute
> for
>>>> this calling convention contributed by Kai Tiez and Richard
> Henderson,
>>>> but before that there is not much to do...
>>> Note: My name is Kai Tietz ;) not Tiez
>>>
>>> I think, it isn't to hard introducing this attributes to the AMD64
> abi's.
>>> What names should we use for it? I suggest "x86_64_ms" and
> "x86_64_linux".
>>
>> For code bridging MS and GNU codebases (such as wine, or lets say,  
>> GNU
>> runtime in windows if it ends up with non-MS calling convetions).
>> Then you want to use the attributes to call code from foreign world.
>>
>> x86_64_linux is probably not very exact - we intended the ABI to be
>> generally useful for non-linux or non-GNU system (i.e. specified as
>> System V Application Binary Interface AMD64 Architecture Processor
>> Supplement with GCC as reference implementation).  I believe Sparc  
>> and
>> other unixes are more or less following it too.
>>
>> For MS I would probably suggest ms_abi (it makes it cleaner that the
>> attribute is affecting calling convetion). For our abi I am not  
>> sure, we
>> can sysv_abi or something else...
>
> I will prepare an patch for it. For me "ms_abi" and "sysv_abi" is  
> fine.
>
> Cheers,
>  i.A. Kai Tietz
>
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