cvs commit: src/sys/sys _null.h

[Peter Wemm]

On Friday 19 December 2003 06:42 am, Marcel Moolenaar wrote:
> On Mon, Dec 15, 2003 at 02:25:18AM -0800, Peter Wemm wrote:
> > peter       2003/12/15 02:25:18 PST
> >
> >   FreeBSD src repository
> >
> >   Modified files:
> >     sys/sys              _null.h
> >   Log:
> >   amd64 doesn't define __LP64__ in the compiler, but it definately
> > needs this definition.  It fixes gnome for starters.  I haven't
> > tried *emacs yet. Like IA64, amd64 uses registers for the first few
> > arguments and then the stack for the rest.  This means the 64 bit
> > promotion of the NULL (0) value is lost and its just pushed on as
> > an 'int' in a varargs call.
>
> Odd. I swear I tested amd64 and found that the promotion was still
> there by virtue of the generated code. I guess not...

It does, most of the time.  gcc does some very funny things at times.
The varargs stuff seems to be really good at tempting fate.

-- 
Peter Wemm - peter at wemm.org; peter at FreeBSD.org; peter at yahoo-inc.com
"All of this is for nothing if we don't go to the stars" - JMS/B5