RE: [RFC] 32-bit support for windows thread information block

["Pierre Muller" <muller@ics.u-strasbg.fr>]

> -----Message d'origine-----
> De : gdb-patches-owner@sourceware.org [mailto:gdb-patches-
> owner@sourceware.org] De la part de Kai Tietz
> Envoyé : Wednesday, January 14, 2009 2:00 PM
> À : Pierre Muller
> Cc : gdb-patches@sourceware.org
> Objet : Re: [RFC] 32-bit support for windows thread information block
> 
> gdb-patches-owner@sourceware.org wrote on 14.01.2009 12:21:53:
> 
> >  I implemented two new command that display
> > a part of the information of the
> > thread information block and on
> > the structured exception handler chain.
> >  I added these two command to the "info w32" command
> > prefix, but got into troubles appearing below.
> >
> > I have several questions regarding the 64-bit support of
> > windows nat files:
> >
> > 1) Do hardware watchpoints work?
> >   the problem is that the dr[8] array is
> > defined as a unsigned type,
> > is this enough for win64?
> >   Is "unsigned" type a 64-bit ?
> >
> >   In the _CONTEXT struct
> >   the debug registers are defined as DWORD64...
> 
> For address above 4GB hardware watchpoints aren't working, reasoned by
> truncation.

  This would be easily fixed by changing the 
"unsigned" type into something that would be
"DWORD64" on 64-bit and "DWORD" on 32-bit.

  The main problem for me is that I don't know 
what would be a reasonable choice for that type?

  Would uintptr_t be OK here?



Pierre Muller
Pascal language support maintainer for GDB