RFR (M): 8036767 PPC64: Support for little endian execution model

[Tiago Sturmer Daitx]

On Tue, 2015-02-24 at 09:58 -0800, Alexander Smundak wrote:
> On Tue, Feb 24, 2015 at 6:21 AM, Andrew Hughes <gnu.andrew at redhat.com> wrote:
> > Did we decide whether -DABI_ELFv2 was needed or not? If it isn't, then I'll
> > drop this from the webrev too, and also from our version of the ppc64le port
> > on OpenJDK 7.
> 
> I think only hotspot needs it.

That macro is only used by hotspot - there's no single reference to it
outside the hotspot for JDK8 and JDK9. 

I see it being defined in jdk/make/common/Defs-linux.gmk for IcedTea 2.5
(JDK7) and since it is also defined by
hotspot/make/linux/makefiles/ppc64.make I believe it is not actually
required in Defs-linux.gmk (haven't tried to build without it though).

Regards,
Tiago