RFR: 8222825: ARM32 SIGILL issue on single core CPU (not supported PLDW instruction)

[David Holmes]

Hi Boris,

I was wondering what had happened to this one :)

Looks good! I can sponsor for you.

Thanks,
David

On 14/05/2019 2:45 pm, Boris Ulasevich wrote:
> Hi all,
> 
> Please review the fix for SIGILL that happens on ARM32 CPU without 
> Multiprocessing Extensions support (this applies to single-core arm32 
> processors, which are not very common this days). With the fix we check 
> PLDW instruction availability on JVM start-up to correct further 
> instructions generation.
> 
> https://bugs.openjdk.java.net/browse/JDK-8222825
> http://cr.openjdk.java.net/~bulasevich/8222825/webrev.03.jdk-jdk
> 
> thanks,
> Boris