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annotate graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/HotSpotStackFrameReference.java @ 16529:f6ac86d3334e

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Change API for stack walking to a visitor: TruffleRuntime#iterateFrames replaces TruffleRuntime#getStackTrace
author Christian Wimmer <christian.wimmer@oracle.com>
date Tue, 15 Jul 2014 16:34:53 -0700
parents 36e1a11a72b3
children a8cff27ca2e1
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1 /*
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2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.graal.hotspot;
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24
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25 import java.util.*;
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26
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27 import com.oracle.graal.api.code.stack.*;
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28 import com.oracle.graal.api.meta.*;
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29 import com.oracle.graal.hotspot.bridge.*;
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30 import com.oracle.graal.hotspot.meta.*;
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31
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32 public class HotSpotStackFrameReference implements InspectedFrame {
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33
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34 private CompilerToVM compilerToVM;
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35
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36 // information used to find the stack frame
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37 private long stackPointer;
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38 private int frameNumber;
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39
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40 // information about the stack frame's contents
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41 private int bci;
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42 private long metaspaceMethod;
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43 private Object[] locals;
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44 private boolean[] localIsVirtual;
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45
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46 public long getStackPointer() {
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47 return stackPointer;
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48 }
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49
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50 public int getFrameNumber() {
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51 return frameNumber;
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52 }
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53
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54 @Override
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55 public Object getLocal(int index) {
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56 return locals[index];
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57 }
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58
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59 @Override
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60 public boolean isVirtual(int index) {
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61 return localIsVirtual == null ? false : localIsVirtual[index];
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62 }
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63
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64 @Override
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65 public void materializeVirtualObjects(boolean invalidateCode) {
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66 compilerToVM.materializeVirtualObjects(this, invalidateCode);
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67 }
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68
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69 @Override
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70 public int getBytecodeIndex() {
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71 return bci;
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72 }
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73
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74 @Override
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75 public ResolvedJavaMethod getMethod() {
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76 return HotSpotResolvedJavaMethod.fromMetaspace(metaspaceMethod);
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77 }
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78
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79 @Override
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80 public boolean isMethod(ResolvedJavaMethod method) {
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81 return metaspaceMethod == ((HotSpotResolvedJavaMethod) method).getMetaspaceMethod();
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82 }
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83
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84 @Override
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85 public boolean hasVirtualObjects() {
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86 return localIsVirtual != null;
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87 }
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88
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89 @Override
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90 public String toString() {
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91 return "HotSpotStackFrameReference [stackPointer=" + stackPointer + ", frameNumber=" + frameNumber + ", bci=" + bci + ", method=" + getMethod() + ", locals=" + Arrays.toString(locals) +
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92 ", localIsVirtual=" + Arrays.toString(localIsVirtual) + "]";
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93 }
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94 }