Re: Cheap slow CPU that runs Orocos?

2012/11/27 Willy Lambert <[email protected]>

> 2012/11/27 Philippe Hamelin <[email protected]>
> >
> > 2012/11/27 Paul Chavent <[email protected]>
> >>
> >> On 11/21/2012 11:17 PM, Willy Lambert wrote:
> >> > 2012/11/21 Paul Chavent <[email protected]>
> >> >> I manage a custom gnu/linux based system that fit on 20Mb with
> everything
> >> >> for running orocos and our software (kernel + glibc + omniorb +
> orocos +
> >> >> opencv + lua + other misc packages)
> >> >>
> >> >> I can give you more information if you need.
> >> >>
> >> >>
> >> > Yes please, I'm very curious about this.
> >> >
> >>
> >> I'm currently use a custom build infrastructure (
> http://gitorious.org/bif ). This infrastructure is just a collection of
> shell functions that allow to ease the development of recipes ( here is the
> orocos recipe
> http://gitorious.org/bif/bif/blobs/master/framework/packages/orocos-rtt/orocos-rtt.sh).
> >>
> >> Nothing really new here, just an automated way of compiling orocos
> (like the bitbake recipes of OE, or Makefile of buildroot), and
> crosscompile capabilities.
> >>
> >
> > I successfuly used Buildroot 2011.05 in a previous project using Orocos
> 2.3.1 on an ARM Cortex-A9 board. I patched buildroot to support the
> required packages (boost, omniorb, orocos-log4cpp, orocos-rtt, orocos-ocl,
> etc.). You can find the patched version in the "2011.05-sm" branch
> available on my github account (
> https://github.com/phamelin/buildroot/tree/2011.05-sm). You will have to
> modify the scripts since the source packages were retrieved from a private
> server. As I remember, the whole operating system including Orocos was
> fitting on a 32 Mb SD card.
>
>
> I saw this :
>  "   --embedded          Disable Scripting, Exceptions and reduce the
> type system."
> in your orocos-rtt configure
> (https://github.com/phamelin/orocos-rtt/blob/master/configure)
>
> Is this one of the key to reduce the size of the libs ?
>
>
We don't use the configure script. We only use the CMake file as you can
see in the Buildroot makefile:

https://github.com/phamelin/buildroot/blob/2011.05-sm/package/orocos-rtt/orocos-rtt.mk

Philippe

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