RFR: 8189685: need PerfMemory class update and a volatile_static_field support in VMStructs [v3]

[David Holmes]

On Wed, 23 Aug 2023 06:45:25 GMT, Serguei Spitsyn <sspitsyn at openjdk.org> wrote:

>> Chris Plummer has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Revert _destroyed back to bool
>
> src/hotspot/share/runtime/vmStructs.hpp line 211:
> 
>> 209: // e.g.: "static ObjectMonitor * volatile g_block_list;"
>> 210: #define CHECK_VOLATILE_STATIC_VM_STRUCT_ENTRY(typeName, fieldName, type)       \
>> 211:  {type volatile * dummy = &typeName::fieldName; }
> 
> It is not clear why the `PTR_` suffix is removed from the name.

The intent was to generalize it but the comments also need changing, and now I'm not clear what this is actually doing.

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PR Review Comment: https://git.openjdk.org/jdk/pull/15373#discussion_r1302592273