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Posted to dev@celix.apache.org by Deroo Stijn <S....@TELEVIC.com> on 2013/08/08 09:33:23 UTC
Celix - eCos - embedded devices
Hi,
We are evaluating celix for using it in our embedded devices as a modular service oriented framework.
On our current embedded devices (ARM9 based) we are using the eCOS (http://ecos.sourceware.org/) operating system, and we want to keep it like that. How difficult will it be to run the celix framework onto the ecos operating system?
To cope with this, I think we have to get rid of the cmake tool, and try to compile celix direcly into ecos using standard makefiles that comes with ecos itself. Any ideas?
Kind regards,
Stijn.
Re: Celix - eCos - embedded devices
Posted by dsh <da...@gmail.com>.
eCos is POSIX compliant no?
Cheers
Daniel
On Thu, Aug 8, 2013 at 9:33 AM, Deroo Stijn <S....@televic.com> wrote:
> Hi,
>
> We are evaluating celix for using it in our embedded devices as a modular
> service oriented framework.
>
> On our current embedded devices (ARM9 based) we are using the eCOS (
> http://ecos.sourceware.org/) operating system, and we want to keep it
> like that. How difficult will it be to run the celix framework onto the
> ecos operating system?
> To cope with this, I think we have to get rid of the cmake tool, and try
> to compile celix direcly into ecos using standard makefiles that comes with
> ecos itself. Any ideas?
>
> Kind regards,
> Stijn.
>
RE: Celix - eCos - embedded devices
Posted by Deroo Stijn <S....@TELEVIC.com>.
Ok. Thanks all for your feedback!
This investigation will be part of a thesis assignment, but we'll keep you informed about the progress/status.
Kind regards,
Stijn.
> -----Original Message-----
> From: Alexander Broekhuis [mailto:a.broekhuis@gmail.com]
> Sent: dinsdag 13 augustus 2013 8:49
> To: celix-dev@incubator.apache.org
> Subject: Re: Celix - eCos - embedded devices
>
> Hi,
>
> libdl is POSIX compliant no? According to Google eCos is POSIX compliant
> > too. So chances are good that Celix could be ported over I would assume.
> >
>
> Yes, it is. So if eCos is indeed posix compliant then it should be possible to
> compile everything. But it is still important to remember that compiling
> doesn't mean it will work as expected. Things like realtime behaviour might
> be a problem.
>
> Anyway, I am really looking forward to some results of this investigation.
> If there are any issues I'd like to fix them, especially since one of the main
> targets of Celix is embedded (semi)realtime systems.
>
>
> --
> Met vriendelijke groet,
>
> Alexander Broekhuis
Re: Celix - eCos - embedded devices
Posted by Alexander Broekhuis <a....@gmail.com>.
Hi,
libdl is POSIX compliant no? According to Google eCos is POSIX compliant
> too. So chances are good that Celix could be ported over I would assume.
>
Yes, it is. So if eCos is indeed posix compliant then it should be possible
to compile everything. But it is still important to remember that compiling
doesn't mean it will work as expected. Things like realtime behaviour might
be a problem.
Anyway, I am really looking forward to some results of this investigation.
If there are any issues I'd like to fix them, especially since one of the
main targets of Celix is embedded (semi)realtime systems.
--
Met vriendelijke groet,
Alexander Broekhuis
Re: Celix - eCos - embedded devices
Posted by dsh <da...@gmail.com>.
Hi,
libdl is POSIX compliant no? According to Google eCos is POSIX compliant
too. So chances are good that Celix could be ported over I would assume.
Cheers
Daniel
On Thu, Aug 8, 2013 at 11:13 AM, Alexander Broekhuis
<a....@gmail.com>wrote:
> Hi Deroo,
>
> Like Sascha says, CMake has pretty good cross compile support. I am not
> familiar with Ecos, but I think it should be fairly simple to get it
> working.
>
> The biggest challenges probably will be library loading and getting Apache
> APR working.
> Library loading: Celix relies on libdl for loading/unloading libraries,
> Ecos has to have something similar
> Apache APR: Celix uses APR as runtime abstraction and uses a memory pool
> model. Potentially this may interfere with the real time behaviour of Ecos.
> But on the other hand, since APR is an abstraction, it might as well be
> interesting to see if Ecos can be added to it (this might also be a nice
> fix if Ecos uses a different loading model.
> We do use a small subset of APR, so when crosscompiling it, quite a lot of
> features can be ignored/disabled.
>
> In the past a colleague worked on compiling Celix using buildroot, I should
> have some information on that somewhere. If you are interested I can look
> it up and mail to you. If I am correct, he made Celix working on an ARM
> based system and used Buildroot for crosscompiling everything (APR, Celix
> and the other dependencies).
>
> Hope this helps, if you have any other questions, don't hesitate to ask!
>
>
> 2013/8/8 Sascha Zelzer <s....@dkfz-heidelberg.de>
>
> > Hi,
> >
> > Regarding CMake, it should be possible to set-up a cross-compiler
> > toolchain on a Linux host and build Celix on that host for eCos on an
> ARM9
> > (I didn't try it myself yet, though).
> >
> > http://www.cmake.org/Wiki/**CmakeEcos<
> http://www.cmake.org/Wiki/CmakeEcos>
> >
> > Best,
> >
> > Sascha
> >
> >
> > On 08/08/2013 09:33 AM, Deroo Stijn wrote:
> >
> >> Hi,
> >>
> >> We are evaluating celix for using it in our embedded devices as a
> modular
> >> service oriented framework.
> >>
> >> On our current embedded devices (ARM9 based) we are using the eCOS (
> >> http://ecos.sourceware.org/) operating system, and we want to keep it
> >> like that. How difficult will it be to run the celix framework onto the
> >> ecos operating system?
> >> To cope with this, I think we have to get rid of the cmake tool, and try
> >> to compile celix direcly into ecos using standard makefiles that comes
> with
> >> ecos itself. Any ideas?
> >>
> >> Kind regards,
> >> Stijn.
> >>
> >
> >
>
>
> --
> Met vriendelijke groet,
>
> Alexander Broekhuis
>
Re: Celix - eCos - embedded devices
Posted by Alexander Broekhuis <a....@gmail.com>.
Hi Deroo,
Like Sascha says, CMake has pretty good cross compile support. I am not
familiar with Ecos, but I think it should be fairly simple to get it
working.
The biggest challenges probably will be library loading and getting Apache
APR working.
Library loading: Celix relies on libdl for loading/unloading libraries,
Ecos has to have something similar
Apache APR: Celix uses APR as runtime abstraction and uses a memory pool
model. Potentially this may interfere with the real time behaviour of Ecos.
But on the other hand, since APR is an abstraction, it might as well be
interesting to see if Ecos can be added to it (this might also be a nice
fix if Ecos uses a different loading model.
We do use a small subset of APR, so when crosscompiling it, quite a lot of
features can be ignored/disabled.
In the past a colleague worked on compiling Celix using buildroot, I should
have some information on that somewhere. If you are interested I can look
it up and mail to you. If I am correct, he made Celix working on an ARM
based system and used Buildroot for crosscompiling everything (APR, Celix
and the other dependencies).
Hope this helps, if you have any other questions, don't hesitate to ask!
2013/8/8 Sascha Zelzer <s....@dkfz-heidelberg.de>
> Hi,
>
> Regarding CMake, it should be possible to set-up a cross-compiler
> toolchain on a Linux host and build Celix on that host for eCos on an ARM9
> (I didn't try it myself yet, though).
>
> http://www.cmake.org/Wiki/**CmakeEcos<http://www.cmake.org/Wiki/CmakeEcos>
>
> Best,
>
> Sascha
>
>
> On 08/08/2013 09:33 AM, Deroo Stijn wrote:
>
>> Hi,
>>
>> We are evaluating celix for using it in our embedded devices as a modular
>> service oriented framework.
>>
>> On our current embedded devices (ARM9 based) we are using the eCOS (
>> http://ecos.sourceware.org/) operating system, and we want to keep it
>> like that. How difficult will it be to run the celix framework onto the
>> ecos operating system?
>> To cope with this, I think we have to get rid of the cmake tool, and try
>> to compile celix direcly into ecos using standard makefiles that comes with
>> ecos itself. Any ideas?
>>
>> Kind regards,
>> Stijn.
>>
>
>
--
Met vriendelijke groet,
Alexander Broekhuis
Re: Celix - eCos - embedded devices
Posted by Sascha Zelzer <s....@dkfz-heidelberg.de>.
Hi,
Regarding CMake, it should be possible to set-up a cross-compiler
toolchain on a Linux host and build Celix on that host for eCos on an
ARM9 (I didn't try it myself yet, though).
http://www.cmake.org/Wiki/CmakeEcos
Best,
Sascha
On 08/08/2013 09:33 AM, Deroo Stijn wrote:
> Hi,
>
> We are evaluating celix for using it in our embedded devices as a modular service oriented framework.
>
> On our current embedded devices (ARM9 based) we are using the eCOS (http://ecos.sourceware.org/) operating system, and we want to keep it like that. How difficult will it be to run the celix framework onto the ecos operating system?
> To cope with this, I think we have to get rid of the cmake tool, and try to compile celix direcly into ecos using standard makefiles that comes with ecos itself. Any ideas?
>
> Kind regards,
> Stijn.