RFR: 8220049: Obsolete ThreadLocalHandshakes

[Robbin Ehn]

Hi David,

On 2019-12-10 11:08, David Holmes wrote:
> Hi Robbin,
>
> This all looks fine to me.
>
> Just one nit on terminology, can we change the bug synopsis to 
> "Obsolete ThreadLocalHandshakes" please. Actual removal will be done 
> in 15 en-masse for all expired flags.

Yes, thanks, fixed.

/Robbin

>
> Thanks,
> David
>
> On 10/12/2019 7:43 pm, Robbin Ehn wrote:
>> Hi all, please review,
>>
>> ThreadLocalHandshakes is obsolete in JDK 14 and this changeset 
>> removes the flag.
>> All platforms except arm32 uses local poll.
>> (after https://bugs.openjdk.java.net/browse/JDK-8235410, Enable 
>> handshakes on Linux x86 (32-bit)
>> , which this patch goes on top of)
>> When arm32 also have local poll we remove the global poll code.
>>
>> Changeset:
>> http://cr.openjdk.java.net/~rehn/8220049/v1/webrev/
>> Issue:
>> https://bugs.openjdk.java.net/browse/JDK-8220049
>>
>> Passes t1-7, built arm32, aarch64, sparc-solaris, linux x86/x64, 
>> windows x64, osx, linux s390x, linux ppc64le
>>
>> (note that on x86 there is missníng include in 
>> src/hotspot/cpu/x86/sharedRuntime_x86_32.cpp,
>> --- a/src/hotspot/cpu/x86/sharedRuntime_x86_32.cpp      Tue Dec 10 
>> 08:47:38 2019 +0100
>> +++ b/src/hotspot/cpu/x86/sharedRuntime_x86_32.cpp      Tue Dec 10 
>> 10:24:14 2019 +0100
>> @@ -32,0 +33,1 @@
>> +#include "gc/shared/barrierSetAssembler_x86.hpp"
>> )
>>
>> Martin please have a look on aix changes.
>>
>> Thanks, Robbin