Re: real time

[Joel Sherrill]

Dag-Erling Smorgrav wrote:
> 
> Joel Sherrill <[EMAIL PROTECTED]> writes:
> > RTEMS is not pure-GPL -- it does allow binary redistribution.
> 
> So does "pure GPL", as long as you make the sources available.  If you
> mean that you can redistribute (potentially modified) RTEMS binaries
> without providing the source code, then you've effectively got a
> {BSD,MIT,Apache} license (except for a few details about attributions
> and the naming of derivative software), and you might as well make the
> change in name as well as in function.

Let me just quote the exception.  We are focused on the impact of
the RTEMS license on the end user embedded application.  

"As a special exception, including RTEMS header files in a file,
instantiating RTEMS generics or templates, or linking other files
with RTEMS objects to produce an executable application, does not
by itself cause the resulting executable application to be covered
by the GNU General Public License. This exception does not
however invalidate any other reasons why the executable file might be
covered by the GNU Public License."

This exception is similar to that used by libgcc and gnat.

> DES
> --
> Dag-Erling Smorgrav - [EMAIL PROTECTED]

-- 
Joel Sherrill, Ph.D. Director of Research & Development
[EMAIL PROTECTED] On-Line Applications Research
Ask me about RTEMS: a free RTOS  Huntsville AL 35805
Support Available(256) 722-9985

To Unsubscribe: send mail to [EMAIL PROTECTED]
with "unsubscribe freebsd-hackers" in the body of the message

Re: real time

[Joel Sherrill]

Wes Peters wrote:
> 
> James Housley wrote:
> >
> > Wes Peters wrote:
> > >
> > > Charles:
> > > >
> > > > -Original Message-
> > > > >  Joao Carlos <[EMAIL PROTECTED]> asked:
> > > > >
> > > > > Does FreeBSD has any related work about it as an real time operating
> > > > > system?
> > > > > Where can i find information about that ??
> > > >
> > > > Here's one starting point,
> > > >
> > > > http://www.rtmx.com/
> > > >
> > > > They offer extensions to OpenBSD.
> > >
> > > Used to.  RTMX contributed the RTMX code base to OpenBSD and stopped
> > > distributing it themselves over a year ago.  Since then, it has
> > > disappeared, with no mention of it on the OpenBSD web site.  Neither
> > > OpenBSD.org, rtmx.com, nor rtmx.net has a "search" feature, so
> > > looking for it is nearly impossible.  There is nothing in the OpenBSD
> > > change logs mentioning RTMX, either.
> > >
> >
> > RTEMS, http://www.oarcorp.com, does compile and run on FreeBSD.  I have
> > been contacted/contacting one of their main people about closer ties.
> > The tools are in the ports tree.
> 
> Tell Joel I said Hi.  I like everything about RTEMS except the GPL that
> has infested it.  I wish we could convince OARcorp to shed this and come
> up with a license that allows binary distribution.  The licensing issue
> is the primary advantage eCOS has over RTEMS at this time, doubly ironic
> now that RootHack owns eCOS.

I am sorry for missing this.  I was out of town at the time
and just now cleaning my inbox down to that point.

RTEMS is not pure-GPL -- it does allow binary redistribution.  It also
has an exception that allows linking RTEMS with an application without
causing the application to be covered by the GPL.  

> --
> "Where am I, and what am I doing in this handbasket?"
> 
> Wes Peters Softweyr LLC
> [EMAIL PROTECTED]   http://softweyr.com/

-- 
Joel Sherrill, Ph.D. Director of Research & Development
[EMAIL PROTECTED] On-Line Applications Research
Ask me about RTEMS: a free RTOS  Huntsville AL 35805
Support Available(256) 722-9985

To Unsubscribe: send mail to [EMAIL PROTECTED]
with "unsubscribe freebsd-hackers" in the body of the message