Re: Green Hills Ada library question (Ada on VxWorks)

[dewar@gnat.com]

In article <6ttoaj$mnt$1@nnrp1.dejanews.com>,
  dennison@telepath.com wrote:
> In article <6ts1bi$vbb$1@nnrp1.dejanews.com>,
>   dewar@gnat.com wrote:
> > In article <6tmvrf$8pq$1@nnrp1.dejanews.com>,
> >   dennison@telepath.com wrote:
> > > That's a little like saying they will be supporting Unix soon. VxWorks is
a
> > > (Real-time) OS that has been ported to many different architectures. I
doubt
> > a
> > > single port would work on more than one of them.
> >
> > Actually that is quite wrong. One of the great strengths of
> > VxWorks is that it provides a remarkable degree of
> > architecture independence.
> > '
> > There are currently five VxWOrks ports of GNAT in use
> > (68K, PPC, MIPS-3000, Alpha, i960). What is remarkable
> > is how much of the code is common between these ports.
>
> Its nice to know that this makes porting somewhat easier. But I note that you
> still refer to versions on each platform as a "port", which was my point
> entirely. There is no such thing as "a VxWorks port".  There is a 68K VxWorks
> port, a PPC VxWorks port, etc.
>
> What I would need is a PC-clone VxWorks port, which I note isn't in your li
> list.So no, I really wasn't that wrong at all.
>
> --
> T.E.D.
>
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No, that is still confused. Yes, of course every separate
software product is a separate port. For example, the VMS
version for VMS 7.1 and 7.2 is a separate port, at the very
least, it needs full QA testing on the new version of the
operating system.

I am not sure what you mean by a VxWorks port for a PC clone,
that's a rather odd designation, makes me think that T.E.D.
has not actually worked with VxWorks at all. A more
reasonable query would be a port for some particular
x86 board, and indeed this is certainly possible. T.E.D.
if you are interested in such a product, let us know, and
we will be happy to give you a quote.

My list certainly did not include all the GNAT ports for
VxWorks that we *can* provide, just the ones that we have
provided so far.

Most certainly embedded applications using VxWorks tend to
require more customization than off the shelf native ports.
No question about that! We certainly expect to have to
provide more specialized support during the installation
process for example, which is why we charge more for
GNATWorks (the designation for ports of GNAT Professional
for VxWorks) than for native ports.

Robert Dewar
Ada Core Technologies

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