RE: Any advice on how to debug this?

[Medland, Bill]

> -----Original Message-----
> From: Alexandre Julliard [mailto:[e-mail]]
> Sent: Wednesday, July 10, 2002 12:51 PM
> To: Medland, Bill
> Cc: Wine devel (E-mail)
> Subject: Re: Any advice on how to debug this?
>
> "Medland, Bill"  writes:
> > It looks to me like:
> >
> > comctl32.dll includes a shared data segment.
> > One of the entries in that segment, presumably during the
>
> DllEntry, is
> > populated with the address of GetSystemMetrics
> >
> > A second copy of comctl32 then tries to use that address to call
> > GetSystemMetrics
> >
> > Unfortunately the second process has user32 mapped
>
> somewhere else and so the
> > call goes somewhere weird and things fall over.
> >
> > Any ideas as to what we can do about it?
>
> That's a common problem with Win9x dlls. It cannot be completely fixed
> because we don't control the layout of our address space; there are
> some hacks that could be done in the loader to make it less likely to
> happen, but I'm not convinced it is worth the trouble. Our efforts
> would probably be better spent making sure the builtin versions of the
> offending dlls work properly.
>
> -- 
> Alexandre Julliard
> [e-mail]

Thanks Alexandre.  I guess the lesson is to use NT dlls wherever possible.

Bill

Any advice on how to debug this?

[Andreas Mohr]

On Wed, Jul 10, 2002 at 01:11:59PM -0700, Medland, Bill wrote:
> > -----Original Message-----
> > From: Alexandre Julliard [mailto:[e-mail]]
> >
> > That's a common problem with Win9x dlls. It cannot be completely fixed
> > because we don't control the layout of our address space; there are
> > some hacks that could be done in the loader to make it less likely to
> > happen, but I'm not convinced it is worth the trouble. Our efforts
> > would probably be better spent making sure the builtin versions of the
> > offending dlls work properly.
> >
> > -- 
> > Alexandre Julliard
> > [e-mail]
>
> Thanks Alexandre.  I guess the lesson is to use NT dlls wherever possible.

No way. Wine still has lots of problems with NT DLLs, since they are...
NT DLLs ;)
Wine's support for NT API is too damn incomplete, so you'll have more luck
with Win9x DLLs in most cases.
Or just choose to not use *any* Windows DLLs. Might help.