RFR: 8304915: Create jdk.internal.util.Architecture enum and apply [v7]

[ExE Boss]

On Fri, 7 Apr 2023 09:28:18 GMT, Thomas Stuefe <stuefe at openjdk.org> wrote:

> > > What I meant was: You define PPCLE. PPCLE specifies ppc, little endian. We also have PPC big-endian, it is used by AIX (and you can also run Linux with PPC big-endian). Why omit that?
> > > os.arch for AIX is "ppc64".
> > 
> > 
> > So I think you are saying that there are aix-ppc64 and linux-ppc64le builds so this enum needs to have values for both ppc64 and ppc64le.
> 
> Yes, precisely.

In that case, they should probably be called `PPC64BE` and `PPC64LE` to disambiguate between them.

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PR Comment: https://git.openjdk.org/jdk/pull/13357#issuecomment-1500140904