RFR: 8253795: Implementation of JEP 391: macOS/AArch64 Port [v9]

[Anton Kozlov]

On Fri, 12 Feb 2021 13:32:52 GMT, Vladimir Kempik <vkempik at openjdk.org> wrote:

>> src/hotspot/os_cpu/bsd_aarch64/os_bsd_aarch64.cpp line 486:
>> 
>>> 484:         }
>>> 485:       }
>>> 486:     }
>> 
>> This appears to be a mix for Mavericks (10.9) and 10.12
>> work arounds. Is this code needed by this project?
>
> I wasn't able to replicate JDK-8020753 and JDK-8186286. So will remove these workaround
> @gerard-ziemski, 8020753 was originally your fix, do you know if it still needed on intel-mac ?

The x86_bsd still carries the workaround https://github.com/openjdk/jdk/blob/master/src/hotspot/os_cpu/bsd_x86/os_bsd_x86.cpp#L745. It's worth having macos ports to be aligned by features. I would propose to have this workaround for now, and decide on it later for macos/x86 and macos/aarch64 at once. Sorry for chiming in so late.

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PR: https://git.openjdk.java.net/jdk/pull/2200