[RFC] Drop support for x86_32 from Xenomai 3.2

Philippe Gerum rpm at xenomai.org
Thu Jan 21 16:33:08 CET 2021


Jan Kiszka <jan.kiszka at siemens.com> writes:

> On 17.01.21 18:26, Philippe Gerum wrote:
>> 
>> The I-pipe and Cobalt ports to x86_32 received neither careful
>> maintenance nor testing for ages. In addition, Dovetail does not support
>> the 32bit legacy mode, and there is no plan to do so. Therefore I
>> recommend to stop supporting the x86_32 architecture starting from
>> Xenomai 3.2, which echoes what Jan has been saying for quite a while
>> about this issue too.
>> 
>> If you do care about running Xenomai on this architecture and are
>> willing to maintain such a port in the long run, this is definitely the
>> right time to make your case, asap.
>> 
>
> Just to clarify: This affects the host kernel, not 32-bit userland
> (compat), right? The latter is still a must-have in several applications
> here, and I think beyond as well.
>

Only 32bit kernel support would be dropped, 32bit compat over 64bit
would stay.

> BTW, we should also deprecate the x32 ABI.
>

Agreed.

-- 
Philippe.



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