RFR: 8303040: linux PPC64le: Implementation of Foreign Function & Memory API (Preview) [v3]

[Martin Doerr]

On Wed, 1 Mar 2023 06:27:19 GMT, Martin Doerr <mdoerr at openjdk.org> wrote:

>> src/java.base/share/classes/jdk/internal/foreign/abi/ppc64/CallArranger.java line 68:
>> 
>>> 66: public abstract class CallArranger {
>>> 67:     // Linux PPC64 Little Endian uses ABI v2.
>>> 68:     private static final boolean useABIv2 = ByteOrder.nativeOrder() == ByteOrder.LITTLE_ENDIAN;
>> 
>> Now that I'm here. This could be a potentially interesting case for having 2 subclasses of CallArranger: one for `useABIv2 == true` and one for `false`.
>
> Yeah, let's wait until we know what changes we need for AIX (and Big Endian linux).

I think having a ABIV1CallArranger (for Big Endian linux and AIX) and a ABIV2CallArranger (linux ppc64le) will make sense. That's why I have removed the LinuxPPC64CallArranger.java with
https://github.com/openjdk/jdk/pull/12708/commits/fb87284c1d3df946db378d196d7f48cd3acbab01. I guess a good time for such cleanup will be after the code for all variants is available (not part of this PR).

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PR: https://git.openjdk.org/jdk/pull/12708