hg: jdk10/hs/hotspot: 8169517: WhiteBox should provide concurrent GC phase control

[kim.barrett at oracle.com]

Changeset: 59f5a79c2776
Author:    kbarrett
Date:      2017-04-13 16:38 -0400
URL:       http://hg.openjdk.java.net/jdk10/hs/hotspot/rev/59f5a79c2776

8169517: WhiteBox should provide concurrent GC phase control
Summary: Added WhiteBox API and G1 implementation.
Reviewed-by: shade, dfazunen

! src/share/vm/gc/g1/concurrentMarkThread.cpp
! src/share/vm/gc/g1/concurrentMarkThread.hpp
! src/share/vm/gc/g1/g1CollectedHeap.cpp
! src/share/vm/gc/g1/g1CollectedHeap.hpp
! src/share/vm/gc/shared/collectedHeap.cpp
! src/share/vm/gc/shared/collectedHeap.hpp
+ src/share/vm/gc/shared/concurrentGCPhaseManager.cpp
+ src/share/vm/gc/shared/concurrentGCPhaseManager.hpp
! src/share/vm/prims/whitebox.cpp
! src/share/vm/runtime/mutexLocker.cpp
! src/share/vm/runtime/mutexLocker.hpp
+ test/gc/concurrent_phase_control/CheckControl.java
+ test/gc/concurrent_phase_control/CheckSupported.java
+ test/gc/concurrent_phase_control/CheckUnsupported.java
+ test/gc/concurrent_phase_control/TestConcurrentPhaseControlCMS.java
+ test/gc/concurrent_phase_control/TestConcurrentPhaseControlG1.java
+ test/gc/concurrent_phase_control/TestConcurrentPhaseControlG1Basics.java
+ test/gc/concurrent_phase_control/TestConcurrentPhaseControlParallel.java
+ test/gc/concurrent_phase_control/TestConcurrentPhaseControlSerial.java