[fpc-devel] FPC for Sanos (a minimal Win-32)

[Pierre Free Pascal]

  I looked a little on the API declared by Sanos
and I think that it would probably be easier
to use our Unix targets to get a reasonable support
for this OS rather than trying to use the Win32 subset.
  The C API seems to be far more extended than
the small Win32 emulation layer.

  Otherwise you will really need to strip the RTL down a lot:
Do not rely on exported function in DLL's
looking into sources, you will discover that lots
are only pseudo implementations doing nothing.
 
  See for instance
SetConsoleCtrlHandler implementation in:
http://www.jbox.dk/sanos/source/win32/kernel32/kernel32.c.html

SetConsoleCtrlHandler is the central function
used inside Windows RTL to support exceptions on that target...
Using signals.pp unit might help for this particular problem
as thread specific exceptions with thread information block
seems to be supported (but I didn't test it).


Pierre

> -----Message d'origine-----
> De : fpc-devel-bounces at lists.freepascal.org [mailto:fpc-devel-
> bounces at lists.freepascal.org] De la part de Mark Morgan Lloyd
> Envoyé : jeudi 24 mars 2011 11:27
> À : fpc-devel at lists.freepascal.org
> Objet : [fpc-devel] FPC for minimal Win-32
> 
> I'm currently looking at the potential of a minimal Win32-compatible OS
> called Sanos, which supposedly implements a useful subset of the Windows
> console-mode API. As a starting point, I'm using the standard Windows
> variant of the FPC compiler, but if I build a minimal program (i.e.
> program test0; begin end.) the executable requires the oleaut32 DLL
> which is not implemented.
> 
> Is there an easy way to break this requirement, or do I need to hack and
> rebuild FPC? If the latter is feasible, could somebody give me a hint
> where to start?
> 
> --
> Mark Morgan Lloyd
> markMLl .AT. telemetry.co .DOT. uk
> 
> [Opinions above are the author's, not those of his employers or
colleagues]
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