Mercurial > hg > graal-jvmci-8
annotate jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotVMConfigStore.java @ 23710:927a39cd7ddd
Use ClassValue instead of WeakHashMap to track ResolvedJavaTypes
author | Tom Rodriguez <tom.rodriguez@oracle.com> |
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date | Tue, 21 Jun 2016 14:36:31 -0700 |
parents | 4a8e3af4a0b1 |
children | 1140503536ae |
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1 /* |
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2 * Copyright (c) 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 static jdk.vm.ci.common.InitTimer.timer; |
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26 |
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27 import java.util.Collections; |
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28 import java.util.HashMap; |
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29 import java.util.Map; |
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30 |
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31 import jdk.vm.ci.common.InitTimer; |
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32 |
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33 /** |
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34 * Access to VM configuration data. |
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35 */ |
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36 public final class HotSpotVMConfigStore { |
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37 |
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38 /** |
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39 * Gets the C++ symbols whose addresses are exposed by this object. |
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40 * |
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41 * @return an unmodifiable map from the symbol names to their addresses |
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42 */ |
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43 public Map<String, Long> getAddresses() { |
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44 return Collections.unmodifiableMap(vmAddresses); |
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45 } |
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46 |
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47 /** |
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48 * Gets the C++ type sizes exposed by this object. |
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49 * |
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50 * @return an unmodifiable map from C++ type names to their sizes in bytes |
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51 */ |
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52 public Map<String, Long> getTypeSizes() { |
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53 return Collections.unmodifiableMap(vmTypeSizes); |
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54 } |
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55 |
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56 /** |
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57 * Gets the C++ constants exposed by this object. |
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58 * |
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59 * @return an unmodifiable map from the names of C++ constants to their values |
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60 */ |
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61 public Map<String, Long> getConstants() { |
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62 return Collections.unmodifiableMap(vmConstants); |
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63 } |
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64 |
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65 /** |
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66 * Gets the VM flags exposed by this object. |
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67 * |
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68 * @return an unmodifiable map from VM flag names to {@link VMFlag} objects |
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69 */ |
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70 public Map<String, VMFlag> getFlags() { |
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71 return Collections.unmodifiableMap(vmFlags); |
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72 } |
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73 |
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74 /** |
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75 * Gets the C++ fields exposed by this object. |
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76 * |
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77 * @return an unmodifiable map from VM field names to {@link VMField} objects |
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78 */ |
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79 public Map<String, VMField> getFields() { |
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80 return Collections.unmodifiableMap(vmFields); |
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81 } |
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82 |
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83 final HashMap<String, VMField> vmFields; |
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84 final HashMap<String, Long> vmTypeSizes; |
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85 final HashMap<String, Long> vmConstants; |
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86 final HashMap<String, Long> vmAddresses; |
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87 final HashMap<String, VMFlag> vmFlags; |
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88 |
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89 /** |
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90 * Reads the database of VM info. The return value encodes the info in a nested object array |
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91 * that is described by the pseudo Java object {@code info} below: |
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92 * |
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93 * <pre> |
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94 * info = [ |
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95 * VMField[] vmFields, |
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96 * [String name, Long size, ...] vmTypeSizes, |
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97 * [String name, Long value, ...] vmConstants, |
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98 * [String name, Long value, ...] vmAddresses, |
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99 * VMFlag[] vmFlags |
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100 * ] |
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101 * </pre> |
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102 */ |
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103 @SuppressWarnings("try") |
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104 HotSpotVMConfigStore(CompilerToVM compilerToVm) { |
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105 Object[] data; |
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106 try (InitTimer t = timer("CompilerToVm readConfiguration")) { |
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107 data = compilerToVm.readConfiguration(); |
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108 } |
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109 assert data.length == 5; |
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110 |
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111 // @formatter:off |
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112 VMField[] vmFieldsInfo = (VMField[]) data[0]; |
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113 Object[] vmTypesSizesInfo = (Object[]) data[1]; |
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114 Object[] vmConstantsInfo = (Object[]) data[2]; |
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115 Object[] vmAddressesInfo = (Object[]) data[3]; |
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116 VMFlag[] vmFlagsInfo = (VMFlag[]) data[4]; |
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117 |
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118 vmFields = new HashMap<>(vmFieldsInfo.length); |
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119 vmTypeSizes = new HashMap<>(vmTypesSizesInfo.length); |
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120 vmConstants = new HashMap<>(vmConstantsInfo.length); |
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121 vmAddresses = new HashMap<>(vmAddressesInfo.length); |
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122 vmFlags = new HashMap<>(vmFlagsInfo.length); |
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123 // @formatter:on |
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124 |
23691 | 125 try (InitTimer t = timer("HotSpotVMConfigStore<init> fill maps")) { |
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126 for (VMField vmField : vmFieldsInfo) { |
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127 vmFields.put(vmField.name, vmField); |
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128 } |
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129 |
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130 for (int i = 0; i < vmTypesSizesInfo.length / 2; i++) { |
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131 String name = (String) vmTypesSizesInfo[i * 2]; |
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132 Long size = (Long) vmTypesSizesInfo[i * 2 + 1]; |
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133 vmTypeSizes.put(name, size); |
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134 } |
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135 |
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136 for (int i = 0; i < vmConstantsInfo.length / 2; i++) { |
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137 String name = (String) vmConstantsInfo[i * 2]; |
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138 Long value = (Long) vmConstantsInfo[i * 2 + 1]; |
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139 vmConstants.put(name, value); |
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140 } |
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141 |
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142 for (int i = 0; i < vmAddressesInfo.length / 2; i++) { |
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143 String name = (String) vmAddressesInfo[i * 2]; |
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144 Long value = (Long) vmAddressesInfo[i * 2 + 1]; |
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145 vmAddresses.put(name, value); |
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146 } |
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147 |
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148 for (VMFlag vmFlag : vmFlagsInfo) { |
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149 vmFlags.put(vmFlag.name, vmFlag); |
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150 } |
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151 } |
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152 } |
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153 |
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154 @Override |
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155 public String toString() { |
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156 return getClass().getSimpleName(); |
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157 } |
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158 } |