| /* |
| * Copyright (c) 2011, 2012, 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. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| 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); |
| } |
| |
| // 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); |
| } |
| |
| } |