Mercurial > hg > graal-jvmci-8
view agent/src/share/classes/sun/jvm/hotspot/oops/ArrayData.java @ 3972:4f93f0d00802
7059019: G1: add G1 support to the SA
Summary: Extend the SA to recognize the G1CollectedHeap and implement any code that's needed by our serviceability tools (jmap, jinfo, jstack, etc.) that depend on the SA.
Reviewed-by: never, poonam, johnc
author | tonyp |
---|---|
date | Tue, 20 Sep 2011 09:59:59 -0400 |
parents | f6f3bb0ee072 |
children | 4bec1b1f7b33 |
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/* * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. * * * * * * * * * * * * * * * * * * * */ package sun.jvm.hotspot.oops; import java.io.*; import java.util.*; import sun.jvm.hotspot.debugger.*; import sun.jvm.hotspot.runtime.*; import sun.jvm.hotspot.types.*; import sun.jvm.hotspot.utilities.*; // ArrayData // // A ArrayData is a base class for accessing profiling data which does // not have a statically known size. It consists of an array length // and an array start. abstract class ArrayData extends ProfileData { static final int arrayLenOffSet = 0; static final int arrayStartOffSet = 1; int arrayUintAt(int index) { int aindex = index + arrayStartOffSet; return uintAt(aindex); } int arrayIntAt(int index) { int aindex = index + arrayStartOffSet; return intAt(aindex); } Oop arrayOopAt(int index) { int aindex = index + arrayStartOffSet; return oopAt(aindex); } // Code generation support for subclasses. static int arrayElementOffset(int index) { return cellOffset(arrayStartOffSet + index); } ArrayData(DataLayout layout) { super(layout); } static int staticCellCount() { return -1; } int arrayLen() { return intAt(arrayLenOffSet); } public int cellCount() { return arrayLen() + 1; } // Code generation support static int arrayLenOffset() { return cellOffset(arrayLenOffSet); } static int arrayStartOffset() { return cellOffset(arrayStartOffSet); } }