[Xenomai] 32 bits / 64 bits compatibility

Stéphane Ancelot sancelot at numalliance.com
Mon Jan 23 08:33:04 CET 2017



Le 20/01/2017 à 18:33, Philippe Gerum a écrit :
> On 01/20/2017 05:12 PM, Stéphane Ancelot wrote:
>> Le 17/01/2017 à 11:32, Philippe Gerum a écrit :
>>> On 01/17/2017 10:30 AM, Stéphane Ancelot wrote:
>>>> Hi,
>>>>
>>>> In order to keep graphic compatibility with an application, I must run
>>>> some xenomai applications in 32 bits.
>>>>
>>>> Is it possible to have a 64 bits kernel compile xenomai with 32 bits
>>>> libs for applications ?
>>>>
>>> Xenomai 3 supports this, currently for x86.
>> I managed to run 32 bits applications , with shared memory using 32 bits
>> emulation under 64 bit kernel with xenomai 3.  (latest git next branch
>> with 3.18.20 kernel)
>>
>> The main problem remains with rtnet.
>> ioctl replies with no such device.
>>
>> This can be reproduced with rtifconfig 32 and 64 bits version against
>> rteth0 interface (that is loaded ...).
>>
>> rtifconfig 64bits works , not 32 bit one.
>>
> Yes, rtnet does not support mixed ABI.
>
Hi,
Weekend was useful...I have no restriction on 32bit in my realtime task 
... so; the realtime task will run 64 bits and gui tasks 32 bit.... :-)
Regards,
S.Ancelot



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