RFR: JDK-8162354: Unable to build JDK 9 on a Sparc T7-1 with default boot-jdk 8.0

[Erik Joelsson]

New webrev: http://cr.openjdk.java.net/~erikj/8162354/webrev.02/

I found that the first working update was 8u20 and changed to use that 
instead for minimal impact.

/Erik

On 2016-08-03 09:08, Erik Joelsson wrote:
>
>
> On 2016-08-03 04:20, David Holmes wrote:
>> Hi Erik,
>>
>> On 3/08/2016 1:11 AM, Erik Joelsson wrote:
>>> Hello,
>>>
>>> The default bootjdk for 9 is JDK 8. Unfortunately JDK 8 does not 
>>> work on
>>> newer M7 sparc hardware. This has of course been fixed in an update.
>>> This patch changes the Jib profile configuration to use 8u102 as 
>>> bootjdk
>>> on Solaris sparc if the cpu is of the M7 type.
>>
>> Isn't 8u102 a bit too recent to use - shouldn't we use the oldest 
>> version that works on M7?
>>
> That is a good point. Either go with latest greatest when changing or 
> try to find the minimum change. We had a similar problem in JDK 8 
> where 7GA did not work on macosx. At that time we took the first 
> working version. I will see if I can figure out which one it is at least.
>> Does this actually affect official builds (do they use M7) or does 
>> this simply enable use of M7 in the other build processes (JPRT etc)?
>>
> Unclear. The new hardware we received is M7, so without a change we 
> can't use that hardware for any builds, which would be sad since the 
> machine is very fast. I suspect that down the line we will want to use 
> this class of hardware in all types of build scenarios. IMO, we get 
> adequate testing that the 8GA as boot (which is the defined bootjdk) 
> works on all the other platforms.
>
> /Erik
>