RFR(XXS): 8043180: SIGSEGV in Events::log_deopt_message

Igor Veresov igor.veresov at oracle.com
Thu May 15 06:29:46 UTC 2014


It expands into a do-while loop. It needs to be in some function.

igor

On May 14, 2014, at 11:02 PM, Vladimir Kozlov <vladimir.kozlov at oracle.com> wrote:

> Igor,
> 
> Why you placed STATIC_ASSERT inside methods? Can they be after arrays initialization code?
> 
> Thanks,
> Vladimir
> 
> On 5/14/14 10:01 PM, Igor Veresov wrote:
>> I implemented a functionality mimicking static_assert in C++11 only to notice that we already have a STATIC_ASSERT in debug.hpp.
>> Anyways, here is the solution that asserts the proper array sizes statically.
>> 
>> Webrev:  http://cr.openjdk.java.net/~iveresov/8043180/webrev.02
>> 
>> igor
>> 
>> On May 14, 2014, at 6:05 PM, Christian Thalinger <christian.thalinger at oracle.com> wrote:
>> 
>>> Yeah, something like this.  Better would be to check all entries in a verify method.  Also, can we be sure that undefined entries are initialized to zero on all platforms?
>>> 
>>> On May 14, 2014, at 5:29 PM, Igor Veresov <igor.veresov at oracle.com> wrote:
>>> 
>>>> Don’t quite know an easy way to that statically, but we can check at runtime:
>>>> 
>>>> http://cr.openjdk.java.net/~iveresov/8043180/webrev.01
>>>> 
>>>> igor
>>>> 
>>>> On May 14, 2014, at 5:07 PM, Christian Thalinger <christian.thalinger at oracle.com> wrote:
>>>> 
>>>>> Can we add verification code to make sure this is the case?
>>>>> 
>>>>> const char* Deoptimization::_trap_reason_name[Reason_LIMIT] = {
>>>>>   // Note:  Keep this in sync. with enum DeoptReason.
>>>>> 
>>>>> And maybe this one too?
>>>>> 
>>>>> const char* Deoptimization::_trap_action_name[Action_LIMIT] = {
>>>>>   // Note:  Keep this in sync. with enum DeoptAction.
>>>>> 
>>>>> On May 14, 2014, at 4:49 PM, Igor Veresov <igor.veresov at oracle.com> wrote:
>>>>> 
>>>>>> Forgot to name the deopt reason in the aging change. Also fixed some related LogCompilation printing.
>>>>>> 
>>>>>> Webrev: http://cr.openjdk.java.net/~iveresov/8043180/webrev.00/
>>>>>> 
>>>>>> Thanks,
>>>>>> igor
>>>>> 
>>>> 
>>> 
>> 



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