RFR: 8216557 Aarch64: Add support for Concurrent Class Unloading

[Stuart Monteith]

On 28/04/2020 06:26, Ningsheng Jian wrote:
> Hi Stuart,
> 
> On 4/28/20 12:34 AM, Stuart Monteith wrote:
>> Thanks Erik, Per, Andrew,
>>     I've fixed up the testcase and retested.
>>
>> Uploaded here:
>>
>>     http://cr.openjdk.java.net/~smonteith/8216557/webrev.2/
>>
>> Would someone be able to submit this for me?
>>
> 
> I submitted a build job before pushing your code, but it failed to build with minimal variant configure. Here's error
> message:
> 
> ./src/hotspot/cpu/aarch64/sharedRuntime_aarch64.cpp: In static member function 'static AdapterHandlerEntry*
> SharedRuntime::generate_i2c2i_adapters(MacroAssembler*, int, int, const BasicType*, const VMRegPair*,
> AdapterFingerPrint*)':
> 
> ./src/hotspot/cpu/aarch64/sharedRuntime_aarch64.cpp:736:5: error: invalid use of incomplete type 'class
> BarrierSetAssembler'
> 
>    bs->c2i_entry_barrier(masm);
> 
> I think you need to include barrierSetAssembler.hpp in sharedRuntime_aarch64.cpp?
> 
> Thanks,
> Ningsheng

Thanks for that Ningsheng - I've made some changes, and built with minimal.

The revised patch:

 http://cr.openjdk.java.net/~smonteith/8216557/webrev.3/

There were contributions from aph at redhat.com

Thanks,
	Stuart