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Re: [PATCH] ppc64 specific sysdep.h changes
- From: "Steve Munroe" <sjmunroe at us dot ibm dot com>
- To: Roland McGrath <roland at redhat dot com>
- Cc: geoffk at geoffk dot org, libc-alpha at sources dot redhat dot com
- Date: Fri, 20 Sep 2002 15:40:46 -0500
- Subject: Re: [PATCH] ppc64 specific sysdep.h changes
Roland McGrath writes:
> > Roland McGrath writes:
> >
> > > Why not just make a sysdeps/powerpc/powerpc64/sysdep.h?
> > >It can include <sysdeps/powerpc/sysdep.h> for the common parts.
> >
> > Wanted to share the register defines powerpc32 and this was the
simplest
> > way.
>
> In what way is it simpler than #include <sysdeps/powerpc/sysdep.h>?
Because <sysdeps/powerpc/sysdep.h> still has powerpc32 specific stuff
powerpc64 does not want.
So two choices:
Put everything in sysdeps/powerpc and user #if __WORDSIZE == 64 to
discriminate.
or
Split <sysdeps/powerpc/sysdep.h> into <sysdeps/powerpc/sysdep.h> (common
powerpc stuff) and <sysdeps/powerpc/powerpc32/sysdep.h>(powerpc32 specific
stuff) then add <sysdeps/powerpc/powerpc64/sysdep.h> (powerpc64 specific
stuff).
It just seemed simpler in this case to use the #if.