[FFmpeg-devel] [PATCH]doc/platform: Mention musl where x86_32 is not supported

[Josh de Kock]

On 03/10/2016 01:44, Ronald S. Bultje wrote:
> Hi,
>
> On Sun, Oct 2, 2016 at 8:42 PM, Carl Eugen Hoyos <ceffmpeg at gmail.com> wrote:
>
>> 2016-10-03 2:36 GMT+02:00 Ronald S. Bultje <rsbultje at gmail.com>:
>>> Hi,
>>>
>>> On Sun, Oct 2, 2016 at 7:51 PM, Carl Eugen Hoyos <cehoyos at ag.or.at>
>> wrote:
>>>
>>>> Attached patch adds a musl section to doc/platform.
>>>
>>> This is counter-productive...
>>
>> Sorry, I just wanted to be productive wrt a bug (actually
>> bugs) that we will not be able to fix quickly.
>
>
> Have we reported it upstream? That seems to be the least we can do.
>

Not sure it's worth reporting upstream, we're at fault here. The SysV 
calling convention ABI explicitly states: 'If the function does not 
return a floating-point value, then this register must be empty. This 
register must be empty before entry to a function.' (in regards to the 
floating point registers).

See: http://sco.com/developers/devspecs/abi386-4.pdf pages 37-38

-- 
Josh