RFR: 8261027: AArch64: Support for LSE atomics C++ HotSpot code

[Nick Gasson]

On Mon, 8 Feb 2021 10:06:05 GMT, Nick Gasson <ngasson at openjdk.org> wrote:

>> I have no idea. If it doesn't, please tell me; I have no Windows system.
>
> I don't either unfortunately. Maybe @mo-beck or @luhenry could help? The Windows build on GitHub Actions failed cryptically with:
> 
>  Creating support/modules_libs/java.base/server/jvm.dll from 1045 file(s)
> 
> make[3]: *** [lib/CompileJvm.gmk:143: /cygdrive/d/a/jdk/jdk/jdk/build/windows-aarch64/hotspot/variant-server/libjvm/objs/atomic_aarch64.obj] Error 2

I suppose you could just move it to `os_cpu/linux_aarch64/` as these are only called from the Linux atomics?

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PR: https://git.openjdk.java.net/jdk/pull/2434