RFR: 8308246: PPC64le build broken after JDK-8304913 [v2]

[Alan Bateman]

On Wed, 17 May 2023 15:36:40 GMT, Roger Riggs <rriggs at openjdk.org> wrote:

> Hmm, most java bytecode (classfiles) aren't going to care about the endian-ness; in int is an int, etc.
> Runtime calls to extract int from byte[] is going to check a runtime flag; possibly static and optimization by HotSpot, etc.
> The Architecture enum was intending to capture essential build time attributes.
> If there is a need for more static attributes of a build, the current API doesn't cover that.

The image writer needs to be told the endianness of the target platform, usually the native order but can be overridden. As part of pull/11943, a new resource file is added to map the value of the ModuleTarget class file attribute (essentially $os-$arch) to the endianness to help cross linking.  I don't yet see how this will work with the changes in the this PR.

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PR Review Comment: https://git.openjdk.org/jdk/pull/14027#discussion_r1197414070