RFR: [10] Backports for fixing Shenandoah JDK10 non-PCH build

[Aleksey Shipilev]

On 03/20/2018 04:34 PM, Zhengyu Gu wrote:
> On 03/14/2018 06:02 AM, Aleksey Shipilev wrote:
>> On 03/14/2018 11:00 AM, Aleksey Shipilev wrote:
>>> On 03/13/2018 09:24 PM, Zhengyu Gu wrote:
>>>> A couple of backports to fix Shenandoah JDk10 build without precompiled headers.
>>>>
>>>> Both patches were applied cleanly.
>>>>
>>>> Webrev: http://cr.openjdk.java.net/~zgu/shenandoah/sh-jdk10-non-PCH/webrev.00/
>>>
>>> *) I would prefer not to pickup partial backports that fix PCH for us. Is there a way to just add
>>> appropriate headers to make it compile?
> 
> Okay, JDK-8193063 seems never arrived to upstream jdk10. Redid fix without it. Unfortunately, it
> does need to touch G1 code to breakup circular dependency.
> 
> Webrev: http://cr.openjdk.java.net/~zgu/shenandoah/sh-jdk10-non-PCH/webrev.01/

*) As we have reverted the workaround in debugInfo, the additional header is not needed there?
  http://hg.openjdk.java.net/shenandoah/jdk10/rev/7e708bf03522

*) We need to perform the ShenandoahBarrierSet::clone_in_heap move in sh/jdk, then backport it to
sh/jdk10, then apply this patch

Otherwise good.

Thanks,
-Aleksey