RFR (S): 8039146: Fix 64-bit store to int JNIHandleBlock::_top

[Vladimir Kozlov]

Fix is good but it requires closed changes which we need to prepare 
before the push.

Thanks,
Vladimir

On 4/7/14 10:41 AM, Coleen Phillimore wrote:
>
> The change looks fine.  I can sponsor it unless someone else would like to.
> Thanks,
> Coleen
>
> On 4/7/14, 6:07 AM, Lindenmaier, Goetz wrote:
>>
>> Hi,
>>
>> could I please get a review of this change?  It fixes a rather
>>
>> obvious error, and is really simple.
>>
>> Is runtime the wrong mainling list for interpreter changes? Should I
>>
>> post to comp?
>>
>> Best regards,
>>
>> Goetz.
>>
>> *From:*Lindenmaier, Goetz
>> *Sent:* Donnerstag, 3. April 2014 15:33
>> *To:* hotspot-runtime-dev at openjdk.java.net
>> *Subject:* RFR (S): 8039146: Fix 64-bit store to int JNIHandleBlock::_top
>>
>> Hi,
>>
>> please review an test this small fix to the interpreters.  I please need
>>
>> a sponsor.
>>
>> http://cr.openjdk.java.net/~goetz/webrevs/8039146-intSt/webrev.00/
>> <http://cr.openjdk.java.net/%7Egoetz/webrevs/8039146-intSt/webrev.00/>
>>
>> JNIHandleBlock::_top is an int field. Various places store into
>>
>> this field using a pointer store. On 64-bit platforms
>>
>> this can cause errors.
>>
>> This change adapts the corresponding operations on sparc
>>
>> and both x86 variants to use fixed 32-bit operations.
>>
>> Best regards,
>>
>>   Goetz.
>>
>