Mercurial > hg > graal-jvmci-8
annotate jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotJVMCIRuntimeProvider.java @ 22672:1bbd4a7c274b
Rename jdk.internal.jvmci to jdk.vm.ci
author | Tom Rodriguez <tom.rodriguez@oracle.com> |
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date | Thu, 08 Oct 2015 17:28:41 -0700 |
parents | jvmci/jdk.internal.jvmci.hotspot/src/jdk/internal/jvmci/hotspot/HotSpotJVMCIRuntimeProvider.java@b6b46b741102 |
children | 57646377e480 |
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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 jdk.vm.ci.hotspot; |
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24 |
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25 import java.io.OutputStream; |
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26 |
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27 import jdk.vm.ci.common.JVMCIError; |
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28 import jdk.vm.ci.compiler.Compiler; |
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29 import jdk.vm.ci.meta.JVMCIMetaAccessContext; |
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30 import jdk.vm.ci.meta.JavaKind; |
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31 import jdk.vm.ci.meta.JavaType; |
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32 import jdk.vm.ci.meta.ResolvedJavaType; |
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33 import jdk.vm.ci.runtime.JVMCIRuntime; |
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34 import sun.misc.Unsafe; |
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35 |
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36 //JaCoCo Exclude |
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37 |
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38 /** |
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39 * Configuration information for the HotSpot JVMCI runtime. |
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40 */ |
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41 public interface HotSpotJVMCIRuntimeProvider extends JVMCIRuntime { |
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42 |
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43 HotSpotVMConfig getConfig(); |
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44 |
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45 CompilerToVM getCompilerToVM(); |
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46 |
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47 Compiler getCompiler(); |
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48 |
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49 /** |
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50 * Gets an output stream that writes to the HotSpot's {@code tty} stream. |
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51 */ |
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52 OutputStream getLogStream(); |
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53 |
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54 /** |
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55 * Converts a name to a Java type. This method attempts to resolve {@code name} to a |
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56 * {@link ResolvedJavaType}. |
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57 * |
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58 * @param name a well formed Java type in {@linkplain JavaType#getName() internal} format |
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59 * @param accessingType the context of resolution which must be non-null |
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60 * @param resolve specifies whether resolution failure results in an unresolved type being |
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61 * return or a {@link LinkageError} being thrown |
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62 * @return a Java type for {@code name} which is guaranteed to be of type |
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63 * {@link ResolvedJavaType} if {@code resolve == true} |
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64 * @throws LinkageError if {@code resolve == true} and the resolution failed |
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65 * @throws NullPointerException if {@code accessingClass} is {@code null} |
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66 */ |
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67 JavaType lookupType(String name, HotSpotResolvedObjectType accessingType, boolean resolve); |
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68 |
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69 /** |
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70 * Gets the JVMCI mirror for a {@link Class} object. |
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71 * |
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72 * @return the {@link ResolvedJavaType} corresponding to {@code javaClass} |
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73 */ |
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74 ResolvedJavaType fromClass(Class<?> clazz); |
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75 |
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76 JVMCIMetaAccessContext getMetaAccessContext(); |
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77 |
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78 /** |
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79 * The offset from the origin of an array to the first element. |
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80 * |
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81 * @return the offset in bytes |
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82 */ |
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83 static int getArrayBaseOffset(JavaKind kind) { |
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84 switch (kind) { |
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85 case Boolean: |
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86 return Unsafe.ARRAY_BOOLEAN_BASE_OFFSET; |
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87 case Byte: |
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88 return Unsafe.ARRAY_BYTE_BASE_OFFSET; |
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89 case Char: |
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90 return Unsafe.ARRAY_CHAR_BASE_OFFSET; |
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91 case Short: |
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92 return Unsafe.ARRAY_SHORT_BASE_OFFSET; |
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93 case Int: |
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94 return Unsafe.ARRAY_INT_BASE_OFFSET; |
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95 case Long: |
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96 return Unsafe.ARRAY_LONG_BASE_OFFSET; |
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97 case Float: |
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98 return Unsafe.ARRAY_FLOAT_BASE_OFFSET; |
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99 case Double: |
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100 return Unsafe.ARRAY_DOUBLE_BASE_OFFSET; |
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101 case Object: |
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102 return Unsafe.ARRAY_OBJECT_BASE_OFFSET; |
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103 default: |
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104 throw new JVMCIError("%s", kind); |
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105 } |
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106 } |
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107 |
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108 /** |
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109 * The scale used for the index when accessing elements of an array of this kind. |
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110 * |
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111 * @return the scale in order to convert the index into a byte offset |
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112 */ |
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113 static int getArrayIndexScale(JavaKind kind) { |
21551
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114 switch (kind) { |
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115 case Boolean: |
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116 return Unsafe.ARRAY_BOOLEAN_INDEX_SCALE; |
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117 case Byte: |
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118 return Unsafe.ARRAY_BYTE_INDEX_SCALE; |
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119 case Char: |
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120 return Unsafe.ARRAY_CHAR_INDEX_SCALE; |
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121 case Short: |
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122 return Unsafe.ARRAY_SHORT_INDEX_SCALE; |
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123 case Int: |
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124 return Unsafe.ARRAY_INT_INDEX_SCALE; |
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125 case Long: |
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126 return Unsafe.ARRAY_LONG_INDEX_SCALE; |
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127 case Float: |
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128 return Unsafe.ARRAY_FLOAT_INDEX_SCALE; |
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129 case Double: |
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130 return Unsafe.ARRAY_DOUBLE_INDEX_SCALE; |
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131 case Object: |
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132 return Unsafe.ARRAY_OBJECT_INDEX_SCALE; |
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133 default: |
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134 throw new JVMCIError("%s", kind); |
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135 } |
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136 } |
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137 } |