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8218732: SA: Resolves ZPageAllocator::_physical incorrectly

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Reviewed-by: eosterlund, jgeorge
This commit is contained in:
Stefan Karlsson 2019-02-19 10:01:50 +01:00
parent e79488cc1b
commit ec54717960
1 changed files with 4 additions and 4 deletions

8
src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/gc/z/ZPageAllocator.java

@ -1,5 +1,5 @@
/*
* Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2017, 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
@ -37,7 +37,7 @@ import sun.jvm.hotspot.types.TypeDataBase;
public class ZPageAllocator extends VMObject {
private static AddressField physicalField;
private static long physicalFieldOffset;
private static CIntegerField usedField;
static {
@ -47,12 +47,12 @@ public class ZPageAllocator extends VMObject {
static private synchronized void initialize(TypeDataBase db) {
Type type = db.lookupType("ZPageAllocator");
physicalField = type.getAddressField("_physical");
physicalFieldOffset = type.getAddressField("_physical").getOffset();
usedField = type.getCIntegerField("_used");
}
private ZPhysicalMemoryManager physical() {
Address physicalAddr = physicalField.getValue(addr);
Address physicalAddr = addr.addOffsetTo(physicalFieldOffset);
return (ZPhysicalMemoryManager)VMObjectFactory.newObject(ZPhysicalMemoryManager.class, physicalAddr);
}