hg: jdk10/hs: 8188773: PPC64 and s390: Fix UseMembar and enable ShareVtableStubs

[martin.doerr at sap.com]

Changeset: 07ad034e0c29
Author:    mdoerr
Date:      2017-10-04 16:44 +0200
URL:       http://hg.openjdk.java.net/jdk10/hs/rev/07ad034e0c29

8188773: PPC64 and s390: Fix UseMembar and enable ShareVtableStubs
Reviewed-by: goetz

! src/hotspot/cpu/ppc/globals_ppc.hpp
! src/hotspot/cpu/ppc/sharedRuntime_ppc.cpp
! src/hotspot/cpu/ppc/templateInterpreterGenerator_ppc.cpp
! src/hotspot/cpu/s390/globals_s390.hpp
! src/hotspot/os_cpu/linux_s390/os_linux_s390.cpp