RFR 8232712: Shenandoah: SIGBUS in load_reference_barrier_native

[Roman Kennke]

Ok!

Thanks,
Roman


> I missed aarch64 changes for JDK-8232010[1].
> 
> On aarch64, native barrier does not setup the second parameter
> (load_addr) for runtime call, therefore, the address to CAS is bogus.
> 
> Bug: https://bugs.openjdk.java.net/browse/JDK-8232712
> Webrev: http://cr.openjdk.java.net/~zgu/JDK-8232712/webrev.00/
> 
> Test:
>   hotspot_gc_shenandoah (fastdebug and release) on aarch64 Linux.
> 
> [1] https://bugs.openjdk.java.net/browse/JDK-8232010
> 
> Thanks,
> 
> -Zhengyu
>