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

Josh de Kock josh at itanimul.li
Mon Oct 3 03:56:03 EEST 2016

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


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