patch to add QNX NTO i386 support

[Andrew Cagney]

> Suggest separating the GDB stuff out (native, target, remote) and using
>> separate e-mail threads to discuss each.
> 
> 
> I was going to but it's easier this way.

It isn't for the person doing the review -> the easier the reviewer's 
life is, the quicker (well, ok, in theory :-/) the reviewer should be. 
I'd strongly focus on getting the cross debugger 
(--target=i386-unknown-nto) integrated into GDB, and then worry above 
the native.

 >  The native nto-procfs.c makes use
 > of some of the code in remote-qnx.c and remote-qnx-<target>.c (we 
still have
 > four more targets.)  If you really feel it's necessary I could do the 
work
 > but I had started on it and concluded it would either lead to a lot of
 > duplicated code or an explosion of files.

That looks like a design problem.  The common code should likely be 
moved to something like nto-tdep.c.  What exactly is common?

Andrew