[Xenomai] Xenomai support has been added to the OMG Data Distribution Service (DDS) Implementation from RTI

[Xenomai] Xenomai support has been added to the OMG Data Distribution Service (DDS) Implementation from RTI

[Gerardo Pardo-Castellote]

Hello,

I wanted to make everyone aware that RTI just added support for Xenomai 
to RTI Connext DDS.  This is RTI's implementation of the OMG 
Data-Distribution Service standard specification.

If deemed appropriate you could add this link to your Weblinks page:
http://community.rti.com/content/forum-topic/howto-use-dds-xenomai-configure-xenomai-and-run-rti-connext-dds

Interestingly the weblinks page includes a link to Orocos which just has 
a recent thread of people discussing how to run DDS on Xenomai. See 
http://www.orocos.org/forum/orocos/orocos-users/using-non-realtime-library-function-calls-realtime-component

Regards,

Gerardo

-- 
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Gerardo Pardo-Castellote, Ph.D.
Chief Technology Officer
gerardo@rti.com
Mobile: 1-650-387-3607
http://www.rti.com
http://community.rti.com
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Re: [Xenomai] Xenomai support has been added to the OMG Data Distribution Service (DDS) Implementation from RTI

[Gilles Chanteperdrix]

On 11/17/2012 11:37 PM, Gerardo Pardo-Castellote wrote:

> 
> Hello,
> 
> I wanted to make everyone aware that RTI just added support for Xenomai 
> to RTI Connext DDS.  This is RTI's implementation of the OMG 
> Data-Distribution Service standard specification.
> 
> If deemed appropriate you could add this link to your Weblinks page:
> http://community.rti.com/content/forum-topic/howto-use-dds-xenomai-configure-xenomai-and-run-rti-connext-dds


Hi,

this is interesting, but not all the configuration advices apply to
latest kernels. I guess this is our fault, we should update the wiki.
Anyway:
- starting with the I-pipe for linux 3.2, disabling HPET timer or PC
speaker is no longer necessary
- starting with the I-pipe for linux 3.4, the processor choice with
regard to TSC does not really matter
- you can keep the "stack protector" option enabled on x86_32.

And something which has always been true: it is a bad idea to disable
ACPI completely, ACPI should be kept enabled, except for the
ACPI_PROCESSOR option.

-- 
                                                                Gilles.

Re: [Xenomai] Xenomai support has been added to the OMG Data Distribution Service (DDS) Implementation from RTI

[Gilles Chanteperdrix]

On 11/18/2012 11:38 AM, Gilles Chanteperdrix wrote:

> On 11/17/2012 11:37 PM, Gerardo Pardo-Castellote wrote:
> 
>>
>> Hello,
>>
>> I wanted to make everyone aware that RTI just added support for Xenomai 
>> to RTI Connext DDS.  This is RTI's implementation of the OMG 
>> Data-Distribution Service standard specification.
>>
>> If deemed appropriate you could add this link to your Weblinks page:
>> http://community.rti.com/content/forum-topic/howto-use-dds-xenomai-configure-xenomai-and-run-rti-connext-dds
> 
> 
> Hi,
> 
> this is interesting, but not all the configuration advices apply to
> latest kernels. I guess this is our fault, we should update the wiki.
> Anyway:
> - starting with the I-pipe for linux 3.2, disabling HPET timer or PC
> speaker is no longer necessary
> - starting with the I-pipe for linux 3.4, the processor choice with
> regard to TSC does not really matter
> - you can keep the "stack protector" option enabled on x86_32.
> 
> And something which has always been true: it is a bad idea to disable
> ACPI completely, ACPI should be kept enabled, except for the
> ACPI_PROCESSOR option.
> 


Something else: the part about xeno-config could lead people to run 
xeno-config by hand and paste the result in their makefile, this is not 
the way xeno-config should be used, it is better to show people how to 
integrate the use of xeno-config in their makefile, as is demonstrated 
here:
https://www.xenomai.org/index.php/Porting_POSIX_applications_to_Xenomai#Compilation_flags

The difference is that if we change the flags between two versions of
xenomai, the makefiles should continue to work. We do not consider the
compilation flags as part of the ABI, so, they may change between two
versions.

Also note that starting with xenomai 2.6, pkg-config support is
available, it may make things easier for people integrating xenomai 
with autotools based projects.

-- 
                                                                Gilles.