Integrated: 8308452: Extend internal Architecture enum with byte order and address size

[Roger Riggs]

On Fri, 19 May 2023 19:19:40 GMT, Roger Riggs <rriggs at openjdk.org> wrote:

> The internal enum jdk.internal.util.Architecture does not provide information about the big or little endianness or the address size (64 or 32 bits).  The endian-ness and address size are intrinsic to the architecture.
> 
> The values of the enum are extended to separately identify the big endian and little-endian uses of the ISA.
> For example, `PPC64` and `PPC64LE` for the big and little-endian versions.  
> The enum values directly reflect the build-time artifacts and resulting executables.
> 
> This information about an architecture will make the enum more useful especially to identify a target platform in a cross-platform use case. A method is added to map well known aliases for the platforms to the Architecture enum.

This pull request has now been integrated.

Changeset: d6dd0dc3
Author:    Roger Riggs <rriggs at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/d6dd0dc3e06d42f108fe80920e1102d47a5aa583
Stats:     191 lines in 5 files changed: 121 ins; 46 del; 24 mod

8308452: Extend internal Architecture enum with byte order and address size

Reviewed-by: mdoerr, jpai, mchung, amitkumar

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PR: https://git.openjdk.org/jdk/pull/14063