RFR(XS) [8u20]: 8038240 : new WB API to get nmethod

Vladimir Kozlov vladimir.kozlov at oracle.com
Thu Mar 27 17:32:17 UTC 2014


Good.

thanks,
Vladimir

On 3/27/14 10:25 AM, Igor Ignatyev wrote:
> Hi all,
>
> I'd like to backport this fix into 8u20. The original patch was applied
> w/o any changes.
>
> http://cr.openjdk.java.net/~iignatyev/8038240/webrev.01/
>
> Igor
>
> On 03/26/2014 01:45 AM, Vladimir Kozlov wrote:
>> It is good.
>>
>> Thanks,
>> Vladimir
>>
>> On 3/25/14 2:06 AM, Igor Ignatyev wrote:
>>> Vladimir/Morris,
>>>
>>> Thanks for review, I've added a nmethod structure w/ code's array and
>>> compilation level. Since to use NMethod class directly in WhiteBox
>>> class, class should be added to bootclasspath, I decided to return the
>>> structure as an object array instead.
>>>
>>> I've replaced getMethodCompilationLevel in CompilerWhiteBoxTest and
>>> planning to remove this method completely in a separate CR.
>>>
>>> Also I've removed CLEAR_PENDING_EXCEPTION from CHECK_JNI_EXCEPTION
>>> macros
>>>
>>> http://cr.openjdk.java.net/~iignatyev/8038240/webrev.01/
>>>
>>> Igor
>>>
>>> On 03/25/2014 01:11 AM, Vladimir Kozlov wrote:
>>>> Igor,
>>>>
>>>> Can we pass a structure instead of code's array? We can add an
>>>> additional information about nmethod into such structure later if
>>>> needed. For now it would have just one pointer to jbyteArray array.
>>>>
>>>> Thanks,
>>>> Vladimir
>>> On 03/25/2014 02:23 AM, Morris Meyer wrote:
>>>> Looks good.  (Not a reviewer).
>>>>
>>>> --morris
>>>>
>>>>
>>>>        --mm
>>>>
>>>>
>>>> On 3/24/14 10:24 AM, Igor Ignatyev wrote:
>>>>> Hi all,
>>>>>
>>>>> Please review the patch which introduces a new WhiteBox method --
>>>>> byte[]
>>>>> getNMethod(). We need this method to write reliable tests for
>>>>> JDK-8031321 : 'Support Intel bit manipulation instructions'.
>>>>>
>>>>> webrev: http://cr.openjdk.java.net/~iignatyev/8038240/webrev.00/
>>>>> jbs: https://bugs.openjdk.java.net/browse/JDK-8038240
>>>>> testing: jprt


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