1 /* 2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 package jdk.vm.ci.hotspot; 24 25 import java.util.*; 26 27 import jdk.vm.ci.code.stack.*; 28 import jdk.vm.ci.meta.*; 29 30 public class HotSpotStackFrameReference implements InspectedFrame { 31 32 private CompilerToVM compilerToVM; 33 34 // information used to find the stack frame 35 private long stackPointer; 36 private int frameNumber; 37 38 // information about the stack frame's contents 39 private int bci; 40 private HotSpotResolvedJavaMethod method; 41 private Object[] locals; 42 private boolean[] localIsVirtual; 43 44 public long getStackPointer() { 45 return stackPointer; 46 } 47 48 public int getFrameNumber() { 49 return frameNumber; 50 } 51 52 @Override 53 public Object getLocal(int index) { 54 return locals[index]; 55 } 56 57 @Override 58 public boolean isVirtual(int index) { 59 return localIsVirtual == null ? false : localIsVirtual[index]; 60 } 61 62 @Override 63 public void materializeVirtualObjects(boolean invalidateCode) { 64 compilerToVM.materializeVirtualObjects(this, invalidateCode); 65 } 66 67 @Override 68 public int getBytecodeIndex() { 69 return bci; 70 } 71 72 @Override 73 public ResolvedJavaMethod getMethod() { 74 return method; 75 } 76 77 @Override 78 public boolean isMethod(ResolvedJavaMethod otherMethod) { 79 return method.equals(otherMethod); 80 } 81 82 @Override 83 public boolean hasVirtualObjects() { 84 return localIsVirtual != null; 85 } 86 87 @Override 88 public String toString() { 89 return "HotSpotStackFrameReference [stackPointer=" + stackPointer + ", frameNumber=" + frameNumber + ", bci=" + bci + ", method=" + getMethod() + ", locals=" + Arrays.toString(locals) + 90 ", localIsVirtual=" + Arrays.toString(localIsVirtual) + "]"; 91 } 92 }