RFR: 8246258: Enable hs_err heap printing earlier during initialization

[Stefan Karlsson]

Thanks, StefanJ.

StefanK

On 2020-06-03 14:14, stefan.johansson at oracle.com wrote:
> Hi Stefan,
>
> On 2020-06-01 17:55, Stefan Karlsson wrote:
>> Hi all,
>>
>> Please review this patch to enable the hs_err GC / heap printing 
>> directly after the heap has been set up.
>>
>> https://cr.openjdk.java.net/~stefank/8246258/webrev.01/
>> https://bugs.openjdk.java.net/browse/JDK-8246258
> Looks good,
> StefanJ
>
>>
>> Changes in the patch:
>> - Remove the Universe::is_fully_initialized
>> - Add NULL initializations and checks in print paths
>>
>> I tested this patch by adding a temporary fatal(...) here:
>>
>> jint Universe::initialize_heap() {
>>    assert(_collectedHeap == NULL, "Heap already created");
>>    _collectedHeap = GCConfig::arguments()->create_heap();
>>    // <<<< HERE
>>    log_info(gc)("Using %s", _collectedHeap->name());
>>    return _collectedHeap->initialize();
>> }
>>
>> and manually looking at the result when running with all GCs. Will 
>> run this through tier1-3.
>>
>> Thanks,
>> StefanK