Re: [PATCH 1/7]: Fix sparc64 setjmp implementation.

[Pavel Roskin <proski@gnu.org>]

On Fri, 2009-03-06 at 19:55 +0100, Robert Millan wrote:
> On Thu, Mar 05, 2009 at 08:04:07AM -0500, Isaac Dupree wrote:
> > > We've been using "unsigned long" for storing virtual addresses in the
> > > Linux kernel for 10+ years and it works just fine.  :-)
> > 
> > and Linux kernel uses GCC compiler in precise ways
> > 
> > I believe that ptrdiff_t is the proper standardized type for an integer the 
> > size of a pointer.  except... it's always signed :-)
> > 
> > Can you just use pointer types and pointer arithmetic?
> > 
> > also, standards aside, a common way to get such a type, is "configure" script 
> > testing various possibilities like "unsigned long" and "unsigned long long" 
> > and seeing which one is the right size for the target architecture. (not sure 
> > if that works when cross-compiling though)
> 
> I think we're already using longs this way in quite a few places.  It's not
> such a big deal IMHO.

I was considering making grub_size_t long and grub_ssize_t unsigned
long.  I remember that it required many changes in string formats, so I
didn't feel it would be justified.  But we could try it again.

-- 
Regards,
Pavel Roskin