RFR (XS): JDK-8146093 [sparc only] compiler/interpreter/7116216/StackOverflow.java Program terminates with signal 11, Segmentation fault. in __1cLRegisterMap2t6MpnKJavaThread_b_v_ ()

[Frederic Parain]

Greetings,

Please review this small fix in the stack overflow check
for the SPARC platform. The check was not updated when
JEP-270 has been pushed. The one line fix in file
templateInterpreterGenerator_sparc.cpp adjusts the check
to the new execution stack layout introduced by JEP-270.

Changes in interpreterRuntime.[ch]pp files are just
a piggybacked clean up to remove a dead method from the
JEP-270 push.

Webrev:
http://cr.openjdk.java.net/~fparain/8146093/webrev.00/

CR:
https://bugs.openjdk.java.net/browse/JDK-8146093

The bug also triggered another type of failure which
has been assigned to a different CR:
https://bugs.openjdk.java.net/browse/JDK-8152675

The fix has been tested against the two failures and
resolves both of them.

Testing:
   JPRT with hotspot testset
   manual testing of the two tests indicated in CRs,
   with stress testing of several dozens hours each
   (stack overflow bugs are often hard to reproduce)

Thanks,

Fred


-- 
Frederic Parain - Oracle
Grenoble Engineering Center - France
Phone: +33 4 76 18 81 17
Email: Frederic.Parain at oracle.com