src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/gc/z/ZGlobalsForVMStructs.java

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2018, 2019, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.

@@ -31,10 +31,11 @@
 import sun.jvm.hotspot.types.Type;
 import sun.jvm.hotspot.types.TypeDataBase;
 
 class ZGlobalsForVMStructs extends VMObject {
     private static AddressField ZGlobalPhaseField;
+    private static AddressField ZGlobalSeqNumField;
     private static AddressField ZAddressGoodMaskField;
     private static AddressField ZAddressBadMaskField;
     private static AddressField ZAddressWeakBadMaskField;
     private static AddressField ZObjectAlignmentSmallShiftField;
     private static AddressField ZObjectAlignmentSmallField;

@@ -45,10 +46,11 @@
 
     static private synchronized void initialize(TypeDataBase db) {
         Type type = db.lookupType("ZGlobalsForVMStructs");
 
         ZGlobalPhaseField = type.getAddressField("_ZGlobalPhase");
+        ZGlobalSeqNumField = type.getAddressField("_ZGlobalSeqNum");
         ZAddressGoodMaskField = type.getAddressField("_ZAddressGoodMask");
         ZAddressBadMaskField = type.getAddressField("_ZAddressBadMask");
         ZAddressWeakBadMaskField = type.getAddressField("_ZAddressWeakBadMask");
         ZObjectAlignmentSmallShiftField = type.getAddressField("_ZObjectAlignmentSmallShift");
         ZObjectAlignmentSmallField = type.getAddressField("_ZObjectAlignmentSmall");

@@ -60,10 +62,14 @@
 
     int ZGlobalPhase() {
         return ZGlobalPhaseField.getValue(addr).getJIntAt(0);
     }
 
+    int ZGlobalSeqNum() {
+        return ZGlobalSeqNumField.getValue(addr).getJIntAt(0);
+    }
+
     long ZAddressGoodMask() {
         return ZAddressGoodMaskField.getValue(addr).getJLongAt(0);
     }
 
     long ZAddressBadMask() {