[RFR] jdk9.0.4+12 + functionality

[Andrey Petushkov]

Hi Simon,
> On 12 Apr 2018, at 09:32, Simon Nash <simon at cjnash.com> wrote:
> 
> On 11/04/2018 19:11, Edward Nevill wrote:
>> The c2 build seems to build OK and I have done a few basic tests on the resultant image.
>> I notice that the default build is 'aarch32' which means that there is no way to specify the 'arm' build.
>>> From the help
>>  --with-cpu-port         specify sources to use for Hotspot 64-bit ARM port
>>                          (arm64,aarch64,aarch32) [aarch64]
>> If the default is aarch32 then there needs to be another option 'arm' to allow you to build the existing arm32 c2.
> What is the difference between building aarch32 and building arm/arm32?
These are two distinct code-bases for Arm32 specific code (hotspot/src/cpu/aarch32 vs hotspot/src/cpu/arm, similar in hotspot/src/os_cpu)
> Is aarch32 the code contributed by Oracle and arm/arm32 the code contributed by Azul?
Vice versa: aarch32 is Linaro and Azul, arm32 - Oracle

Regards,
Andrey
> 
> Simon