Re: [RFC] win32-nat.c: Handle EXCEPTION_INVALID_HANDLE as SIGSYS

[Daniel Jacobowitz <drow at false dot org>]

On Wed, Oct 24, 2007 at 09:15:51PM +0200, Eli Zaretskii wrote:
> > Date: Wed, 24 Oct 2007 09:39:58 +0100
> > From: "Pedro Alves" <pedro_alves@portugalmail.pt>
> > Cc: gdb-patches@sourceware.org
> > 
> > Maybe we can take the oportunity to implement more generic Windows exceptions
> > support, not just EXCEPTION_INVALID_HANDLE.
> 
> I think it's a good idea.  In my experience, any serious program that
> wants to handle signals and exceptions on Windows cannot avoid
> supporting a large number of important EXCEPTION_* exceptions, because
> unlike on Posix platforms, most of them are not translated into SIG*
> style signals, at least in native Windows programs (as opposed to
> Cygwin).

If whoever works on this is feeling ambitious, I would prefer a
solution that is not too tightly linked to Windows.  I've worked with
at least two different embedded developers this past year who were
confused by the need to map platform-specific exceptions onto Unix
signals.  An embedded PowerPC developer is likely to have a much
better idea what's going on if we tell him that his code triggered
a Machine Check Exception than if we report SIGBUS.

Before we can add this to the remote protocol, the rest of GDB needs
to have some notion more general than "it's a signal".

-- 
Daniel Jacobowitz
CodeSourcery