RFR: 8286446: PPC64: fix crashes after JDK-8284161 (virtual threads preview) [v3]

[Martin Doerr]

On Wed, 11 May 2022 07:37:56 GMT, Richard Reingruber <rrich at openjdk.org> wrote:

>> With this change `java -version` succeeds with the devkit build also the standard build on a ppc64le box does not crash anymore.
>> 
>> Also tier1 tests don't look too bad.
>
> Richard Reingruber 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 11 additional commits since the last revision:
> 
>  - Impl. generate_jfr_write_checkpoint() after JDK-8286480
>  - Merge branch 'master' into fix_ppc_after_virtual_threads_integration
>  - Martin's feedback
>  - frame::patch_pc
>  - frame::get_oop_map
>  - Initialize new frame members
>  - Fix Continuation::is_cont_barrier_frame
>  - Fix ppc StubGenerator
>  - TemplateInterpreterGenerator::generate_Continuation_doYield_entry
>  - Fingerprinter::do_type_calling_convention
>  - ... and 1 more: https://git.openjdk.java.net/jdk/compare/335a9df0...c92b1b57

I couldn't spot any obvious bug. Still good. Thanks!

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Marked as reviewed by mdoerr (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/8617