RFR: 8236569: -Xss not multiple of 4K does not work for the main thread on macOS [v5]

[Henry Jen]

On Tue, 8 Jun 2021 13:37:10 GMT, Thomas Stuefe <stuefe at openjdk.org> wrote:

>> Henry Jen has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains seven additional commits since the last revision:
>> 
>>  - Cast type
>>  - Merge
>>  - Change java -X output for -Xss
>>  - Merge
>>  - Only try to round-up when current value failed
>>  - Avoid overflow on page size
>>  - JDK-8236569: -Xss not multiple of 4K does not work for the main thread on macOS
>
> Please make sure the failing tests have nothing to do with your patch. `gc/shenandoah/compiler/TestLinkToNativeRBP.java`
>  sounds at least suggestive.

Still pending CSR, also considering adapt hotspot align up as suggested by @tstuefe.

-------------

PR: https://git.openjdk.java.net/jdk/pull/4256