RFR(xxs): 8205925: Print correct and more information about secondary errors.

[coleen.phillimore at oracle.com]

This seems fine to me as a small change.  No more for JDK 11 though!
 From what I can tell, this does not allocate (malloc or resource area) 
any memory, true?

thanks,
Coleen

On 6/27/18 2:00 PM, Thomas Stüfe wrote:
> (Submit Tests came back clean)
>
> On Wed 27. Jun 2018 at 18:18, Thomas Stüfe <thomas.stuefe at gmail.com> wrote:
>
>> Hi all,
>>
>> could I ask you for reviews for this small improvement:
>>
>> https://bugs.openjdk.java.net/browse/JDK-8205925
>>
>> http://cr.openjdk.java.net/~stuefe/webrevs/8205925-print-info-on-secondary-errors-in-error-handling/webrev.00/webrev/
>>
>> Daniel, when solving JDK-8205648, remarked on the lack of error
>> information for secondary errors, i.e. errors which occur during error
>> handling.
>>
>> Currently we see:
>>
>> [error occurred during error reporting (test secondary crash 1), id 0xb]
>>
>> Which does not tell much, especially since the printed id is wrong, it
>> is the id of the primary error, not the secondary one. It would be
>> helpful to see actually what error occurred during error reporting.
>>
>> This patch adds the ability to see the correct secondary error.
>>
>> Looks like this, for secondary signals:
>>
>> [error occurred during error reporting (test secondary crash 1), id
>> 0x8, SIGSEGV (0xb) at pc=0x00007fb877815ca6]
>>
>> and for secondary asserts:
>>
>> [error occurred during error reporting (test secondary crash 1), id
>> 0xe0000000, Internal Error
>>
>> (/shared/projects/openjdk/jdk-jdk/source/src/hotspot/share/utilities/vmError.cpp:1726)]
>>
>> --
>>
>> Implementation note: when printing information about the secondary
>> error, I follow closely the already existing STEP("printing
>> exception/signal name"). I avoided any unnecessary refactoring since I
>> wanted to get this thru the door before 11 closes. Note that
>> https://bugs.openjdk.java.net/browse/JDK-8196507 also touches these
>> areas and under that bug I have some cleanups for 12 planned.
>>
>> Thanks & Regards, Thomas
>>