On 07/11/2011 01:19 PM, Gilles Chanteperdrix wrote:
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.
Thanks for the reply. I have been implementing the deamon approach. It
seems to be working. Unix sockets can communicate between 32 and 64 bit
programs.
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