RFR: JDK-8260372: [PPC64] Add support for JDK-8210498 and JDK-8222841 [v2]

[Martin Doerr]

On Mon, 8 Feb 2021 11:23:03 GMT, Martin Doerr <mdoerr at openjdk.org> wrote:

>> Niklas Radomski has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Apply Martin's feedback
>
> src/hotspot/cpu/ppc/stubGenerator_ppc.cpp line 3556:
> 
>> 3554:     StubCodeMark mark(this, "StubRoutines", "nmethod_entry_barrier");
>> 3555: 
>> 3556:     address stub_address = __ pc();
> 
> Please use __ function_entry(); instead of __ pc();
> Otherwise it's broken on Big Endian which use ABI v1.

Sorry, __ pc() seems to be correct. It's directly called from nmethod_entry_barrier without using a function descriptor.

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PR: https://git.openjdk.java.net/jdk/pull/2432