Re: Ada in VxWorks

["Jeffrey Creem" <jeff@thecreems.com>]

This is also true of the older VADS products. At least with VADS, the issue
was that
certain constructs (some default initialization, perhaps others) are done
not by generating code
but by inserting the default values in the the initialized data segment.
There are many benefits to
this but one downside is that if the data segment is then modified as the
program runs and you try
to re-run without a re-load you can end up with all sorts of strage
behaviour.

In some cases this is not as bad at it sounds. In general for my
applications I just have the main program
always running (perhaps doing nothing -- blocked) and just use externally
named procedures
(pragma Export) that I can call repeatedly (the external procedures will
typically run over
and over with no problems).

"Marcus Hedlund" <marcus.hedlund@avionics.saab.se> wrote in message
> I have managed to integrate GNAT pro with VxWorks and am trying to run a
few
> ada programs.
> However I can only run the same Ada program once. After trying to run it
> twice, an exception is raised and the program hangs.