[ping] RFR(S): 8156992: [ppc] Implement template interpreter stack overflow checks as on x86/sparc.

[David Holmes]

Hi Goetz,

I know you were having discussions with Dean in relation to this but I 
really don't understand the change to the diagram in thread.hpp nor the 
change to the definition of stackoverflow_limit. To me the limit has to 
be the sum of the guard zone and shadow zone. With your MAX change the 
diagram doesn't even make sense AFAICS.

??

David

On 25/05/2016 6:07 PM, Lindenmaier, Goetz wrote:
> Hi,
>
> could someone else have a look at this change?  I need a reviewer, please.
> I also please need a sponsor.
>
> Best regards,
>   Goetz.
>
>> -----Original Message-----
>> From: Lindenmaier, Goetz
>> Sent: Mittwoch, 18. Mai 2016 12:02
>> To: hotspot-runtime-dev at openjdk.java.net
>> Subject: RFR(S): 8156992: [ppc] Implement template interpreter stack
>> overflow checks as on x86/sparc.
>>
>> Hi,
>>
>> When porting the template interpreter, we implemented a different
>> approach to
>> Stack overflow handling.  See also the detailed description in the Jira bug.
>>
>> This change implements the stack overflow check as on x86/sparc.
>> It requires simple shared changes, but only to code only used on ppc.
>> The changes should not affect the other platforms.
>>
>> Please review this change. I please need a sponsor.
>> http://cr.openjdk.java.net/~goetz/wr16/8156922-ppcStackFix/webrev.01/
>>
>> Best regards,
>>   Goetz.
>