On 07/07/2011 11:40 AM, Kim Mathiassen wrote:
> Hi
>
> I am doing a project where I am going to use Labview for linux.
> Unfortunately Labview only have a 32-bit version and I have a 64 bit
> system. I want to use Xenomai with Labview for DAQ, and therefor I need
> 32 bits libraries that Labview can call. I read a message in the
> mailing-list which where of a similar character:
>
> https://mail.gna.org/public/xenomai-help/2008-05/msg00294.html
>
> I have tried to compile the user-space Xenomai libraries with the m32
> option, but I only get -ENOSYS error which implies that the function is
> not implemented. Is there any plan to implement 32 bit wrappers for a 64
> bit system? Do I have to install a 32 bit kernel in order to use Xenomai
> with Labview? Does anyone have a suggestion on how to solve the problem?
>
> I the message the linked to above, it was suggested that I could
> implement the wrappers. Does anyone know about how much work this would
> be? If it isn't a lot of work, maybe someone could point me to where in
> the code I should start looking.
>
> I am also thinking of making a 64 bit deamon that a 32 bit library can
> communicate with. I am not sure if this will work, because I do not know
> if there are IPC (InterProcess Communication) that can handle both 32
> and 64 bit on Linux?
No Xenomai service is currently implemented in 32 bits mode. It is a ton
of work to do so, because you need to write wrappers for all the system
calls, and there are probably a handful of hundreds of them (a grep | wc
gives 433).
So, currently, it seems easier to use either a complete 64 bits or to a
complete 32 bits system, not a mix of both.
--
Gilles.
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