RFR: 8254693: Add Panama feature to pass heap segments to native code [v6]

[Lutz Schmidt]

On Wed, 18 Oct 2023 17:04:52 GMT, Sidraya Jayagond <sjayagond at openjdk.org> wrote:

>> Jorn Vernee has updated the pull request incrementally with two additional commits since the last revision:
>> 
>>  - add PPC impl
>>  - add missing file
>
> Add s390x port from here
> [S390x_Panama_heap_segments.txt](https://github.com/openjdk/jdk/files/13031418/S390x_Panama_heap_segments.txt)
> 
> All tests are passing on linux S390x. One single test case is failing on Big Endian:
> test TestLayoutPaths.testBadAlignmentOfRoot(): failure. Similar to PPC Big Endian.

@sid8606 You may want to have a look at my s390 comments.

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PR Comment: https://git.openjdk.org/jdk/pull/16201#issuecomment-1771020553