Mercurial > hg > truffle
annotate graal/com.oracle.jvmci.hotspot/src/com/oracle/jvmci/hotspot/HotSpotJVMCIRuntime.java @ 21762:1025d6dc645a
Merge.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Sat, 06 Jun 2015 15:13:09 +0200 |
parents | 2e8c01def9a5 |
children | 3d15183f3c93 |
rev | line source |
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moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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1 /* |
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2 * Copyright (c) 2015, 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.jvmci.hotspot; |
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24 |
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25 import static com.oracle.jvmci.common.UnsafeAccess.*; |
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26 import static com.oracle.jvmci.hotspot.InitTimer.*; |
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27 |
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28 import java.lang.reflect.*; |
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29 import java.util.*; |
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30 |
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31 import com.oracle.jvmci.code.*; |
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32 import com.oracle.jvmci.common.*; |
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33 import com.oracle.jvmci.debug.*; |
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34 import com.oracle.jvmci.hotspot.logging.*; |
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35 import com.oracle.jvmci.meta.*; |
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36 import com.oracle.jvmci.options.*; |
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37 import com.oracle.jvmci.runtime.*; |
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38 import com.oracle.jvmci.service.*; |
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39 |
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40 //JaCoCo Exclude |
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41 |
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42 public final class HotSpotJVMCIRuntime implements HotSpotJVMCIRuntimeProvider, HotSpotProxified { |
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43 |
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44 private static final HotSpotJVMCIRuntime instance; |
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45 |
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46 static { |
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47 try (InitTimer t0 = timer("HotSpotJVMCIRuntime.<clinit>")) { |
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48 try (InitTimer t = timer("HotSpotJVMCIRuntime.<init>")) { |
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49 instance = new HotSpotJVMCIRuntime(); |
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50 } |
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51 |
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52 try (InitTimer t = timer("HotSpotJVMCIRuntime.completeInitialization")) { |
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53 // Why deferred initialization? See comment in completeInitialization(). |
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54 instance.completeInitialization(); |
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55 } |
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56 } |
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57 } |
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58 |
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59 /** |
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60 * Gets the singleton {@link HotSpotJVMCIRuntime} object. |
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61 */ |
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62 public static HotSpotJVMCIRuntime runtime() { |
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63 assert instance != null; |
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64 return instance; |
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65 } |
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66 |
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67 /** |
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68 * Do deferred initialization. |
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69 */ |
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70 public void completeInitialization() { |
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71 TTY.initialize(Options.LogFile.getStream(compilerToVm)); |
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72 |
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73 // Proxies for the VM/Compiler interfaces cannot be initialized |
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74 // in the constructor as proxy creation causes static |
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75 // initializers to be executed for all the types involved in the |
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76 // proxied methods. Some of these static initializers (e.g. in |
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77 // HotSpotMethodData) rely on the static 'instance' field being set |
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78 // to retrieve configuration details. |
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79 CompilerToVM toVM = this.compilerToVm; |
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80 |
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81 if (CountingProxy.ENABLED) { |
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82 toVM = CountingProxy.getProxy(CompilerToVM.class, toVM); |
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83 } |
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84 if (Logger.ENABLED) { |
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85 toVM = LoggingProxy.getProxy(CompilerToVM.class, toVM); |
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86 } |
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87 |
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88 this.compilerToVm = toVM; |
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89 } |
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90 |
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91 public static class Options { |
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92 |
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93 // @formatter:off |
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94 @Option(help = "The JVMCI runtime configuration to use", type = OptionType.Expert) |
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95 public static final OptionValue<String> JVMCIRuntime = new OptionValue<>(""); |
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96 |
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97 @Option(help = "File to which logging is sent. A %p in the name will be replaced with a string identifying the process, usually the process id.", type = OptionType.Expert) |
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98 public static final PrintStreamOption LogFile = new PrintStreamOption(); |
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99 // @formatter:on |
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100 } |
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101 |
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102 public static HotSpotJVMCIBackendFactory findFactory(String architecture) { |
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103 HotSpotJVMCIBackendFactory basic = null; |
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104 HotSpotJVMCIBackendFactory selected = null; |
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105 HotSpotJVMCIBackendFactory nonBasic = null; |
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106 int nonBasicCount = 0; |
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107 |
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108 for (HotSpotJVMCIBackendFactory factory : Services.load(HotSpotJVMCIBackendFactory.class)) { |
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109 if (factory.getArchitecture().equalsIgnoreCase(architecture)) { |
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110 if (factory.getJVMCIRuntimeName().equals(Options.JVMCIRuntime.getValue())) { |
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111 assert selected == null || checkFactoryOverriding(selected, factory); |
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112 selected = factory; |
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113 } |
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114 if (factory.getJVMCIRuntimeName().equals("basic")) { |
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115 assert basic == null || checkFactoryOverriding(basic, factory); |
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116 basic = factory; |
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117 } else { |
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118 nonBasic = factory; |
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119 nonBasicCount++; |
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120 } |
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121 } |
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122 } |
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123 |
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124 if (selected != null) { |
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125 return selected; |
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126 } else { |
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127 if (!Options.JVMCIRuntime.getValue().equals("")) { |
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128 // Fail fast if a non-default value for JVMCIRuntime was specified |
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129 // and the corresponding factory is not available |
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130 throw new JVMCIError("Specified runtime \"%s\" not available for the %s architecture", Options.JVMCIRuntime.getValue(), architecture); |
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131 } else if (nonBasicCount == 1) { |
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132 // If there is exactly one non-basic runtime, select this one. |
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133 return nonBasic; |
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134 } else { |
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135 return basic; |
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136 } |
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137 } |
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138 } |
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139 |
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140 /** |
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141 * Checks that a factory overriding is valid. A factory B can only override/replace a factory A |
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142 * if the B.getClass() is a subclass of A.getClass(). This models the assumption that B is |
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143 * extends the behavior of A and has therefore understood the behavior expected of A. |
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144 * |
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145 * @param baseFactory |
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146 * @param overridingFactory |
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147 */ |
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148 private static boolean checkFactoryOverriding(HotSpotJVMCIBackendFactory baseFactory, HotSpotJVMCIBackendFactory overridingFactory) { |
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149 return baseFactory.getClass().isAssignableFrom(overridingFactory.getClass()); |
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150 } |
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151 |
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152 /** |
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153 * Gets the kind of a word value on the {@linkplain #getHostJVMCIBackend() host} backend. |
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154 */ |
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155 public static Kind getHostWordKind() { |
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156 return instance.getHostJVMCIBackend().getCodeCache().getTarget().wordKind; |
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157 } |
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158 |
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159 /** |
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160 * Reads a klass pointer from a constant object. |
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161 */ |
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162 public static long unsafeReadKlassPointer(Object object) { |
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163 return instance.getCompilerToVM().readUnsafeKlassPointer(object); |
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164 } |
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165 |
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166 /** |
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167 * Reads a word value from a given object. |
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168 */ |
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169 public static long unsafeReadWord(Object object, long offset) { |
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170 if (getHostWordKind() == Kind.Long) { |
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171 return unsafe.getLong(object, offset); |
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172 } |
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173 return unsafe.getInt(object, offset) & 0xFFFFFFFFL; |
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174 } |
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175 |
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176 protected/* final */CompilerToVM compilerToVm; |
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177 |
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178 protected final HotSpotVMConfig config; |
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179 private final JVMCIBackend hostBackend; |
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180 |
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181 /** |
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182 * JVMCI mirrors are stored as a {@link ClassValue} associated with the {@link Class} of the |
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183 * type. This data structure stores both {@link HotSpotResolvedObjectType} and |
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184 * {@link HotSpotResolvedPrimitiveType} types. |
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185 */ |
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186 private final ClassValue<ResolvedJavaType> jvmciMirrors = new ClassValue<ResolvedJavaType>() { |
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187 @Override |
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188 protected ResolvedJavaType computeValue(Class<?> javaClass) { |
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189 if (javaClass.isPrimitive()) { |
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190 Kind kind = Kind.fromJavaClass(javaClass); |
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191 return new HotSpotResolvedPrimitiveType(kind); |
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192 } else { |
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193 return new HotSpotResolvedObjectTypeImpl(javaClass); |
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194 } |
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195 } |
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196 }; |
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197 |
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198 private final Map<Class<? extends Architecture>, JVMCIBackend> backends = new HashMap<>(); |
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199 |
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200 private final HotSpotVMEventListener vmEventListener; |
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201 |
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202 private HotSpotJVMCIRuntime() { |
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203 CompilerToVM toVM = new CompilerToVMImpl(); |
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204 compilerToVm = toVM; |
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205 try (InitTimer t = timer("HotSpotVMConfig<init>")) { |
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206 config = new HotSpotVMConfig(compilerToVm); |
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207 } |
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208 |
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209 if (Boolean.valueOf(System.getProperty("jvmci.printconfig"))) { |
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210 printConfig(config); |
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211 } |
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212 |
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213 String hostArchitecture = config.getHostArchitectureName(); |
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214 |
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215 HotSpotJVMCIBackendFactory factory; |
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216 try (InitTimer t = timer("find factory:", hostArchitecture)) { |
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217 factory = findFactory(hostArchitecture); |
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218 } |
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219 try (InitTimer t = timer("create JVMCI backend:", hostArchitecture)) { |
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220 hostBackend = registerBackend(factory.createJVMCIBackend(this, null)); |
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221 } |
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222 |
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223 HotSpotVMEventListener listener = Services.loadSingle(HotSpotVMEventListener.class, false); |
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224 if (listener == null) { |
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225 listener = new HotSpotVMEventListener() { |
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226 }; |
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227 } |
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228 vmEventListener = listener; |
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229 } |
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230 |
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231 private JVMCIBackend registerBackend(JVMCIBackend backend) { |
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232 Class<? extends Architecture> arch = backend.getCodeCache().getTarget().arch.getClass(); |
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233 JVMCIBackend oldValue = backends.put(arch, backend); |
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234 assert oldValue == null : "cannot overwrite existing backend for architecture " + arch.getSimpleName(); |
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235 return backend; |
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236 } |
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237 |
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238 public ResolvedJavaType fromClass(Class<?> javaClass) { |
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239 return jvmciMirrors.get(javaClass); |
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240 } |
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241 |
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242 private static void printConfig(HotSpotVMConfig config) { |
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243 Field[] fields = config.getClass().getDeclaredFields(); |
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244 Map<String, Field> sortedFields = new TreeMap<>(); |
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245 for (Field f : fields) { |
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246 f.setAccessible(true); |
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247 sortedFields.put(f.getName(), f); |
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248 } |
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249 for (Field f : sortedFields.values()) { |
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250 try { |
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251 Logger.info(String.format("%9s %-40s = %s", f.getType().getSimpleName(), f.getName(), Logger.pretty(f.get(config)))); |
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252 } catch (Exception e) { |
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253 } |
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254 } |
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255 } |
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256 |
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257 public HotSpotVMConfig getConfig() { |
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258 return config; |
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259 } |
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260 |
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261 public CompilerToVM getCompilerToVM() { |
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262 return compilerToVm; |
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263 } |
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264 |
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265 public JavaType lookupType(String name, HotSpotResolvedObjectType accessingType, boolean resolve) { |
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266 Objects.requireNonNull(accessingType, "cannot resolve type without an accessing class"); |
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267 // If the name represents a primitive type we can short-circuit the lookup. |
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268 if (name.length() == 1) { |
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269 Kind kind = Kind.fromPrimitiveOrVoidTypeChar(name.charAt(0)); |
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270 return fromClass(kind.toJavaClass()); |
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271 } |
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272 |
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273 // Resolve non-primitive types in the VM. |
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274 HotSpotResolvedObjectTypeImpl hsAccessingType = (HotSpotResolvedObjectTypeImpl) accessingType; |
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275 final long metaspaceKlass = compilerToVm.lookupType(name, hsAccessingType.mirror(), resolve); |
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276 |
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277 if (metaspaceKlass == 0L) { |
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278 assert resolve == false; |
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279 return HotSpotUnresolvedJavaType.create(this, name); |
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280 } |
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281 return HotSpotResolvedObjectTypeImpl.fromMetaspaceKlass(metaspaceKlass); |
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282 } |
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283 |
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284 public JVMCIBackend getHostJVMCIBackend() { |
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285 return hostBackend; |
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286 } |
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287 |
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288 public <T extends Architecture> JVMCIBackend getJVMCIBackend(Class<T> arch) { |
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289 assert arch != Architecture.class; |
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290 return backends.get(arch); |
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291 } |
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292 |
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293 public Map<Class<? extends Architecture>, JVMCIBackend> getBackends() { |
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294 return Collections.unmodifiableMap(backends); |
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295 } |
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296 |
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297 /** |
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298 * Called from the VM. |
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299 */ |
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300 @SuppressWarnings({"unused"}) |
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301 private void compileMetaspaceMethod(long metaspaceMethod, int entryBCI, long jvmciEnv, int id) { |
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302 vmEventListener.compileMetaspaceMethod(metaspaceMethod, entryBCI, jvmciEnv, id); |
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303 } |
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304 |
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305 /** |
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306 * Called from the VM. |
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307 */ |
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308 @SuppressWarnings({"unused"}) |
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309 private void compileTheWorld() throws Throwable { |
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310 vmEventListener.notifyCompileTheWorld(); |
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311 } |
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312 |
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313 /** |
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314 * Shuts down the runtime. |
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315 * |
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316 * Called from the VM. |
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317 */ |
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318 @SuppressWarnings({"unused"}) |
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319 private void shutdown() throws Exception { |
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320 vmEventListener.notifyShutdown(); |
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321 } |
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322 } |