Mercurial > hg > truffle
annotate graal/com.oracle.max.cri/src/com/oracle/max/cri/ri/RiRuntime.java @ 4266:e2499e6d8aa7
Merge
author | Lukas Stadler <lukas.stadler@jku.at> |
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date | Wed, 11 Jan 2012 16:31:46 +0100 |
parents | 744dade427b8 |
children | 3c21eee8ab4d |
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1 /* |
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2 * Copyright (c) 2009, 2012, 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.max.cri.ri; |
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24 |
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25 import java.lang.reflect.*; |
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26 |
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27 import com.oracle.max.cri.ci.*; |
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28 |
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29 /** |
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30 * Encapsulates the main functionality of the runtime for the compiler, including access |
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31 * to constant pools, OSR frames, inlining requirements, and runtime calls such as checkcast. |
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32 s */ |
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33 public interface RiRuntime { |
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34 |
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35 /** |
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36 * Offset of the lock within the lock object on the stack. |
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37 |
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38 * Note: superseded by sizeOfLockData() in Graal. |
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39 * |
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40 * @return the offset in bytes |
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41 */ |
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42 int basicObjectLockOffsetInBytes(); |
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43 |
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44 /** |
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45 * Get the size in bytes of a lock object on the stack. |
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46 * |
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47 * Note: superseded by sizeOfLockData() in Graal. |
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48 */ |
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49 int sizeOfBasicObjectLock(); |
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50 |
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51 /** |
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52 * Get the size in bytes for locking information on the stack. |
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53 */ |
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54 int sizeOfLockData(); |
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55 |
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56 /** |
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57 * The offset of the normal entry to the code. The compiler inserts NOP instructions to satisfy this constraint. |
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58 * |
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59 * @return the code offset in bytes |
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60 */ |
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61 int codeOffset(); |
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62 |
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63 /** |
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64 * Returns the disassembly of the given code bytes. Used for debugging purposes only. |
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65 * |
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66 * @param code the code bytes that should be disassembled |
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67 * @param address an address at which the bytes are located. This can be used for an address prefix per line of disassembly. |
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68 * @return the disassembly. This will be of length 0 if the runtime does not support disassembling. |
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69 */ |
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70 String disassemble(byte[] code, long address); |
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71 |
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72 /** |
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73 * Returns the disassembly of the given code bytes. Used for debugging purposes only. |
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74 * |
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75 * @param targetMethod the {@link CiTargetMethod} containing the code bytes that should be disassembled |
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76 * @return the disassembly. This will be of length 0 if the runtime does not support disassembling. |
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77 */ |
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78 String disassemble(CiTargetMethod targetMethod); |
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79 |
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80 /** |
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81 * Returns the disassembly of the given method in a {@code javap}-like format. |
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82 * Used for debugging purposes only. |
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83 * |
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84 * @param method the method that should be disassembled |
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85 * @return the disassembly. This will be of length 0 if the runtime does not support disassembling. |
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86 */ |
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87 String disassemble(RiResolvedMethod method); |
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88 |
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89 /** |
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90 * Registers the given compiler stub and returns an object that can be used to identify it in the relocation |
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91 * information. |
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92 * |
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93 * @param targetMethod the target method representing the code of the compiler stub |
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94 * @param name the name of the stub, used for debugging purposes only |
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95 * @return the identification object |
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96 */ |
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97 Object registerCompilerStub(CiTargetMethod targetMethod, String name); |
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98 |
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99 /** |
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100 * Returns the RiType object representing the base type for the given kind. |
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101 */ |
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102 RiResolvedType asRiType(CiKind kind); |
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103 |
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104 /** |
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105 * Returns the type of the given constant object. |
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106 * |
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107 * @return {@code null} if {@code constant.isNull() || !constant.kind.isObject()} |
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108 */ |
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109 RiResolvedType getTypeOf(CiConstant constant); |
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110 |
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111 |
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112 RiResolvedType getType(Class<?> clazz); |
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113 |
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114 /** |
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115 * Returns true if the given type is a subtype of java/lang/Throwable. |
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116 */ |
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117 boolean isExceptionType(RiResolvedType type); |
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118 |
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119 /** |
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120 * Used by the canonicalizer to compare objects, since a given runtime might not want to expose the real objects to the compiler. |
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121 * |
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122 * @return true if the two parameters represent the same runtime object, false otherwise |
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123 */ |
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124 boolean areConstantObjectsEqual(CiConstant x, CiConstant y); |
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125 |
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126 /** |
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127 * Gets the register configuration to use when compiling a given method. |
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128 * |
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129 * @param method the top level method of a compilation |
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130 */ |
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131 RiRegisterConfig getRegisterConfig(RiMethod method); |
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132 |
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133 RiRegisterConfig getGlobalStubRegisterConfig(); |
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134 |
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135 /** |
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136 * Custom area on the stack of each compiled method that the VM can use for its own purposes. |
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137 * @return the size of the custom area in bytes |
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138 */ |
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139 int getCustomStackAreaSize(); |
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140 |
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141 /** |
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142 * Minimum size of the stack area reserved for outgoing parameters. This area is reserved in all cases, even when |
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143 * the compiled method has no regular call instructions. |
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144 * @return the minimum size of the outgoing parameter area in bytes |
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145 */ |
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146 int getMinimumOutgoingSize(); |
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147 |
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148 /** |
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149 * Gets the length of the array that is wrapped in a CiConstant object. |
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150 */ |
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151 int getArrayLength(CiConstant array); |
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152 |
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153 /** |
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154 * Converts the given CiConstant object to a object. |
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155 * |
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156 * @return {@code null} if the conversion is not possible <b>OR</b> {@code c.isNull() == true} |
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157 */ |
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158 Object asJavaObject(CiConstant c); |
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159 |
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160 /** |
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161 * Converts the given CiConstant object to a {@link Class} object. |
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162 * |
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163 * @return {@code null} if the conversion is not possible. |
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164 */ |
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165 Class<?> asJavaClass(CiConstant c); |
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166 |
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167 /** |
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168 * Performs any runtime-specific conversion on the object used to describe the target of a call. |
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169 */ |
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170 Object asCallTarget(Object target); |
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171 |
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172 /** |
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173 * Returns the maximum absolute offset of a runtime call target from any position in the code cache or -1 |
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174 * when not known or not applicable. Intended for determining the required size of address/offset fields. |
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175 */ |
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176 long getMaxCallTargetOffset(CiRuntimeCall rtcall); |
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177 |
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178 /** |
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179 * Provides the {@link RiMethod} for a {@link Method} obtained via reflection. |
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180 */ |
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181 RiResolvedMethod getRiMethod(Method reflectionMethod); |
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182 |
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183 /** |
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184 * Installs some given machine code as the implementation of a given method. |
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185 * |
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186 * @param method a method whose executable code is being modified |
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187 * @param code the code to be executed when {@code method} is called |
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188 */ |
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189 void installMethod(RiMethod method, CiTargetMethod code); |
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190 |
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191 /** |
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192 * Adds the given machine code as an implementation of the given method without making it the default implementation. |
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193 * @param method a method to which the executable code is begin added |
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194 * @param code the code to be added |
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195 * @return a reference to the compiled and ready-to-run code |
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196 */ |
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197 RiCompiledMethod addMethod(RiResolvedMethod method, CiTargetMethod code); |
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198 } |