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annotate jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotCompiledCode.java @ 22780:b4ff1a18d19c

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Move data fields from CompiledCode to HotSpotCompiledCode
author Christian Wimmer <christian.wimmer@oracle.com>
date Tue, 19 Jan 2016 17:36:21 -0800
parents 9273bb6ba33e
children 5d06abd6d35b
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1 /*
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2 * Copyright (c) 2011, 2016, 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 jdk.vm.ci.hotspot;
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24
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25 import jdk.vm.ci.code.BytecodeFrame;
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26 import jdk.vm.ci.code.CompiledCode;
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27 import jdk.vm.ci.code.site.DataPatch;
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28 import jdk.vm.ci.code.site.Infopoint;
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29 import jdk.vm.ci.code.site.Site;
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30 import jdk.vm.ci.meta.Assumptions.Assumption;
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31 import jdk.vm.ci.meta.ResolvedJavaMethod;
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32
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33 /**
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34 * A {@link CompiledCode} with additional HotSpot-specific information required for installing the
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35 * code in HotSpot's code cache.
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36 */
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37 public class HotSpotCompiledCode implements CompiledCode {
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38
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39 /**
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40 * The name of this compilation unit.
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41 */
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42 protected final String name;
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43
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44 /**
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45 * The buffer containing the emitted machine code.
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46 */
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47 protected final byte[] targetCode;
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48
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49 /**
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50 * The leading number of bytes in {@link #targetCode} containing the emitted machine code.
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51 */
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52 protected final int targetCodeSize;
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53
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54 /**
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55 * A list of code annotations describing special sites in {@link #targetCode}.
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56 */
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57 protected final Site[] sites;
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58
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59 /**
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60 * A list of {@link Assumption} this code relies on.
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61 */
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62 protected final Assumption[] assumptions;
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63
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64 /**
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65 * The list of the methods whose bytecodes were used as input to the compilation. If
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66 * {@code null}, then the compilation did not record method dependencies. Otherwise, the first
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67 * element of this array is the root method of the compilation.
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68 */
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69 protected final ResolvedJavaMethod[] methods;
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70
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71 protected final Comment[] comments;
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72
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73 protected final byte[] dataSection;
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74 protected final int dataSectionAlignment;
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75 protected final DataPatch[] dataSectionPatches;
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76
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77 protected final int totalFrameSize;
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78 protected final int customStackAreaOffset;
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79
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80 public static class Comment {
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81
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82 public final String text;
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83 public final int pcOffset;
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84
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85 public Comment(int pcOffset, String text) {
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86 this.text = text;
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87 this.pcOffset = pcOffset;
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88 }
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89 }
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90
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91 public HotSpotCompiledCode(String name, byte[] targetCode, int targetCodeSize, Site[] sites, Assumption[] assumptions, ResolvedJavaMethod[] methods, Comment[] comments, byte[] dataSection,
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92 int dataSectionAlignment, DataPatch[] dataSectionPatches, int totalFrameSize, int customStackAreaOffset) {
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93 this.name = name;
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94 this.targetCode = targetCode;
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95 this.targetCodeSize = targetCodeSize;
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96 this.sites = sites;
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97 this.assumptions = assumptions;
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98 this.methods = methods;
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99
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100 this.comments = comments;
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101 this.dataSection = dataSection;
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102 this.dataSectionAlignment = dataSectionAlignment;
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103 this.dataSectionPatches = dataSectionPatches;
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104 this.totalFrameSize = totalFrameSize;
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105 this.customStackAreaOffset = customStackAreaOffset;
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106
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107 assert validateFrames();
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108 }
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109
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110 public String getName() {
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111 return name;
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112 }
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113
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114 @Override
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115 public String toString() {
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116 return name;
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117 }
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118
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119 /**
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120 * Ensure that all the frames passed into the VM are properly formatted with an empty or illegal
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121 * slot following double word slots.
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122 */
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123 private boolean validateFrames() {
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124 for (Site site : sites) {
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125 if (site instanceof Infopoint) {
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126 Infopoint info = (Infopoint) site;
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Christian Wimmer <christian.wimmer@oracle.com>
parents: 22773
diff changeset
127 if (info.debugInfo != null) {
b4ff1a18d19c Move data fields from CompiledCode to HotSpotCompiledCode
Christian Wimmer <christian.wimmer@oracle.com>
parents: 22773
diff changeset
128 BytecodeFrame frame = info.debugInfo.frame();
b4ff1a18d19c Move data fields from CompiledCode to HotSpotCompiledCode
Christian Wimmer <christian.wimmer@oracle.com>
parents: 22773
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129 assert frame == null || frame.validateFormat();
b4ff1a18d19c Move data fields from CompiledCode to HotSpotCompiledCode
Christian Wimmer <christian.wimmer@oracle.com>
parents: 22773
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130 }
b4ff1a18d19c Move data fields from CompiledCode to HotSpotCompiledCode
Christian Wimmer <christian.wimmer@oracle.com>
parents: 22773
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131 }
b4ff1a18d19c Move data fields from CompiledCode to HotSpotCompiledCode
Christian Wimmer <christian.wimmer@oracle.com>
parents: 22773
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132 }
b4ff1a18d19c Move data fields from CompiledCode to HotSpotCompiledCode
Christian Wimmer <christian.wimmer@oracle.com>
parents: 22773
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133 return true;
22625
545590b1ab83 expanded CodeCacheProvider so that it supports all forms of code installation and made CompilerToVM.installCode package-private
Doug Simon <doug.simon@oracle.com>
parents: 22569
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134 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
135 }