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annotate graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/jvmci/HotSpotInstalledCode.java @ 21546:7306a4dba8ce

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removed dependency from JVMCI class HotSpotResolvedJavaMethodImpl to non-JVMCI class StructuredGraph (JBS:GRAAL-53)
author Doug Simon <doug.simon@oracle.com>
date Tue, 26 May 2015 00:40:36 +0200
parents 5e868236654f
children
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1 /*
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2 * Copyright (c) 2011, 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.jvmci;
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25 import static com.oracle.jvmci.common.UnsafeAccess.*;
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26 import sun.misc.*;
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27
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28 import com.oracle.graal.api.code.*;
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29
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30 import edu.umd.cs.findbugs.annotations.*;
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31
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32 /**
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33 * Implementation of {@link InstalledCode} for HotSpot.
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34 */
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35 public abstract class HotSpotInstalledCode extends InstalledCode {
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36
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37 /**
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38 * Total size of the code blob.
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39 */
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40 @SuppressFBWarnings(value = "UWF_UNWRITTEN_FIELD", justification = "field is set by the native part") private int size;
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41
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42 /**
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43 * Start address of the code.
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44 */
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45 @SuppressFBWarnings(value = "UWF_UNWRITTEN_FIELD", justification = "field is set by the native part") private long codeStart;
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46
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47 /**
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48 * Size of the code.
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49 */
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50 @SuppressFBWarnings(value = "UWF_UNWRITTEN_FIELD", justification = "field is set by the native part") private int codeSize;
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51
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52 public HotSpotInstalledCode(String name) {
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53 super(name);
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54 }
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55
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56 /**
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57 * @return the total size of this code blob
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58 */
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59 public int getSize() {
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60 return size;
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61 }
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62
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63 /**
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64 * @return a copy of this code blob if it is {@linkplain #isValid() valid}, null otherwise.
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65 */
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66 public byte[] getBlob() {
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67 if (!isValid()) {
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68 return null;
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69 }
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70 byte[] blob = new byte[size];
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71 unsafe.copyMemory(null, getAddress(), blob, Unsafe.ARRAY_BYTE_BASE_OFFSET, size);
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72 return blob;
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73 }
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74
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75 @Override
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76 public abstract String toString();
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77
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78 @Override
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79 public long getStart() {
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80 return codeStart;
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81 }
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82
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83 @Override
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84 public long getCodeSize() {
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85 return codeSize;
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86 }
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87
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88 @Override
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89 public byte[] getCode() {
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90 if (!isValid()) {
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91 return null;
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92 }
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93 byte[] code = new byte[codeSize];
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94 unsafe.copyMemory(null, codeStart, code, Unsafe.ARRAY_BYTE_BASE_OFFSET, codeSize);
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95 return code;
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96 }
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97 }