RFR (M) 8246340: Move SystemDictionary GC roots into OopStorage

[coleen.phillimore at oracle.com]

Thanks Erik, thank you for the initiative to do this.
Coleen

On 6/4/20 10:20 AM, Erik Österlund wrote:
> Hi Coleen,
>
> Looks good! Thanks for the nice cleanup!
>
> /Erik
>
> On 2020-06-04 13:39, coleen.phillimore at oracle.com wrote:
>>
>> Offline, Erik pointed out that I missed a system_dictionary tag in 
>> parallelGC and to not initialize OopStorage static data members, so 
>> here's an incremental that I reran tier1 tests on.
>>
>> open webrev at 
>> http://cr.openjdk.java.net/~coleenp/2020/8246340.02.incr/webrev
>>
>> Thanks,
>> Coleen
>>
>> On 6/3/20 1:23 PM, coleen.phillimore at oracle.com wrote:
>>> Summary: use vm_global() OopStorage for system dictionary roots 
>>> removed SystemDictionary::oops_do in all the GCs.
>>>
>>> Tested with tier1-6.
>>>
>>> open webrev at 
>>> http://cr.openjdk.java.net/~coleenp/2020/8246340.01/webrev
>>> bug link https://bugs.openjdk.java.net/browse/JDK-8246340
>>>
>>> Thanks,
>>> Coleen
>>
>