Mercurial > hg > truffle
annotate src/share/vm/graal/graalVMToInterpreter.cpp @ 6503:ac3a4ea144a6
simplified error checking when loading Graal classes from the C++ code
author | Doug Simon <doug.simon@oracle.com> |
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date | Wed, 03 Oct 2012 20:38:40 +0200 |
parents | 8d0a6bceb112 |
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rev | line source |
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1 /* |
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2 * Copyright (c) 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 |
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24 #include "precompiled.hpp" |
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25 #include "graal/graalVMToInterpreter.hpp" |
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26 #include "graal/graalInterpreterToVM.hpp" |
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27 #include "classfile/systemDictionary.hpp" |
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28 #include "classfile/vmSymbols.hpp" |
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29 #include "graal/graalCompiler.hpp" |
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30 |
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31 #ifdef HIGH_LEVEL_INTERPRETER |
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32 |
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33 // those are *global* handles |
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34 jobject VMToInterpreter::_interpreterPermObject = NULL; |
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35 jobject VMToInterpreter::_interpreterPermKlass = NULL; |
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36 |
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37 class JavaArgumentBoxer : public SignatureIterator { |
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38 protected: |
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39 JavaCallArguments* _args; |
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40 Thread* _thread; |
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41 objArrayHandle _obj_array; |
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42 int _index; |
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43 int _position; |
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44 |
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45 public: |
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46 JavaArgumentBoxer(Symbol* signature, objArrayHandle obj_array, JavaCallArguments* args, bool is_static, TRAPS) : SignatureIterator(signature) { |
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47 _obj_array = obj_array; |
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48 _args = args; |
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49 _index = _position = 0; |
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50 _thread = THREAD; |
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51 if (!is_static) { |
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52 push(next_object(T_OBJECT)); |
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53 } |
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54 iterate(); |
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55 assert(_index == _obj_array->length(), "arg count mismatch with signature"); |
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56 } |
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57 |
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58 inline void do_bool() { |
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59 if (!is_return_type()) { |
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60 jvalue value; |
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61 value.z = (jboolean)_args->get_int(_position); |
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62 push(java_lang_boxing_object::create(T_BOOLEAN, &value, _thread)); |
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63 } |
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64 } |
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65 inline void do_char() { |
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66 if (!is_return_type()) { |
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67 jvalue value; |
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68 value.c = (jchar)_args->get_int(_position); |
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69 push(java_lang_boxing_object::create(T_CHAR, &value, _thread)); |
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70 } |
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71 } |
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72 inline void do_short() { |
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73 if (!is_return_type()) { |
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74 jvalue value; |
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75 value.s = (jshort)_args->get_int(_position); |
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76 push(java_lang_boxing_object::create(T_SHORT, &value, _thread)); |
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77 } |
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78 } |
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79 inline void do_byte() { |
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80 if (!is_return_type()) { |
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81 jvalue value; |
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82 value.b = (jbyte)_args->get_int(_position); |
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83 push(java_lang_boxing_object::create(T_BYTE, &value, _thread)); |
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84 } |
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85 } |
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86 inline void do_int() { |
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87 if (!is_return_type()) { |
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88 jvalue value; |
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89 value.i = (jint)_args->get_int(_position); |
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90 push(java_lang_boxing_object::create(T_INT, &value, _thread)); |
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91 } |
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92 } |
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93 |
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94 inline void do_long() { |
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95 if (!is_return_type()) { |
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96 jvalue value; |
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97 value.j = (jlong)_args->get_long(_position); |
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98 push(java_lang_boxing_object::create(T_LONG, &value, _thread)); |
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99 } |
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100 } |
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101 |
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102 inline void do_float() { |
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103 if (!is_return_type()) { |
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104 jvalue value; |
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105 value.f = (jfloat)_args->get_float(_position); |
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106 push(java_lang_boxing_object::create(T_FLOAT, &value, _thread)); |
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107 } |
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108 } |
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109 |
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110 inline void do_double() { |
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111 if (!is_return_type()) { |
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112 jvalue value; |
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113 value.d = (jdouble)_args->get_double(_position); |
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114 push(java_lang_boxing_object::create(T_DOUBLE, &value, _thread)); |
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115 } |
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116 } |
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117 |
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118 inline void do_object(int begin, int end) { if (!is_return_type()) push(next_object(T_OBJECT)); } |
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119 inline void do_array(int begin, int end) { if (!is_return_type()) push(next_object(T_ARRAY)); } |
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120 inline void do_void() { } |
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121 |
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122 inline oop next_object(BasicType type) { |
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123 assert(type == T_OBJECT || type == T_ARRAY, "must be"); |
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124 return *(_args->get_raw_oop(_position)); |
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125 } |
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126 |
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127 inline void push(oop obj) { |
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128 _obj_array->obj_at_put(_index, obj); |
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129 _index++; |
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130 } |
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131 }; |
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132 |
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133 bool VMToInterpreter::allocate_interpreter(const char* interpreter_class_name, const char* interpreter_arguments, TRAPS) { |
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134 assert(_interpreterPermObject == NULL && _interpreterPermKlass == NULL, "no need to allocate twice"); |
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135 |
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136 HandleMark hm; |
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137 // load the interpreter class using its fully qualified class name |
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138 Symbol* class_name = SymbolTable::lookup(interpreter_class_name, (int)strlen(interpreter_class_name), CHECK_false); |
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139 instanceKlassHandle interpreter_klass = SystemDictionary::resolve_or_null(class_name, SystemDictionary::java_system_loader(), NULL, CHECK_false); |
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140 if (interpreter_klass.is_null()) { |
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141 tty->print_cr("Could not load HighLevelInterpreterClass '%s'", interpreter_class_name); |
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142 return false; |
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143 } |
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144 |
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145 // allocate an interpreter instance |
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146 interpreter_klass->initialize(CHECK_false); |
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147 instanceHandle interpreter_instance = interpreter_klass->allocate_instance_handle(CHECK_false); |
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148 |
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149 // initialize the interpreter instance |
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150 Handle args; |
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151 if (interpreter_arguments != NULL) { |
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152 args = java_lang_String::create_from_platform_dependent_str(interpreter_arguments, CHECK_false); |
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153 } |
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154 |
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155 JavaValue result(T_BOOLEAN); |
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156 JavaCalls::call_virtual(&result, interpreter_instance, interpreter_klass, vmSymbols::initialize_name(), vmSymbols::setOption_signature(), args, CHECK_false); |
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157 if (result.get_jboolean() != JNI_TRUE) { |
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158 tty->print_cr("Could not invoke '%s::initialize(String)'", interpreter_class_name); |
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159 return false; |
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160 } |
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161 |
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162 // store the instance globally and keep it alive |
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163 _interpreterPermObject = JNIHandles::make_global(interpreter_instance); |
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164 _interpreterPermKlass = JNIHandles::make_global(interpreter_klass); |
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165 |
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166 // register the native functions that are needed by the interpreter |
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167 { |
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168 assert(THREAD->is_Java_thread(), "must be"); |
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169 JavaThread* thread = (JavaThread*) THREAD; |
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170 ThreadToNativeFromVM trans(thread); |
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171 JNIEnv *env = thread->jni_environment(); |
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172 jclass klass = env->FindClass("com/oracle/graal/hotspot/HotSpotRuntimeInterpreterInterface"); |
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173 if (klass == NULL) { |
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174 tty->print_cr("Could not find class HotSpotRuntimeInterpreterInterface"); |
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175 return false; |
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176 } |
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177 env->RegisterNatives(klass, InterpreterToVM_methods, InterpreterToVM_methods_count()); |
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178 if (thread->has_pending_exception()) { |
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179 tty->print_cr("Could not register HotSpotRuntimeInterpreterInterface native methods"); |
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180 return false; |
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181 } |
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182 } |
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183 |
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184 return true; |
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185 } |
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186 |
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187 Handle VMToInterpreter::interpreter_instance() { |
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188 return Handle(JNIHandles::resolve_non_null(_interpreterPermObject)); |
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189 } |
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190 |
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191 KlassHandle VMToInterpreter::interpreter_klass() { |
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192 return KlassHandle(JNIHandles::resolve_non_null(_interpreterPermKlass)); |
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193 } |
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194 |
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195 void VMToInterpreter::execute(JavaValue* result, methodHandle* m, JavaCallArguments* args, BasicType expected_result_type, TRAPS) { |
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196 assert(interpreter_instance().not_null(), "must be allocated before the first call"); |
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197 assert(THREAD->is_Java_thread(), "must be"); |
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198 assert(m != NULL, "must be"); |
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199 assert(args != NULL, "must be"); |
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200 |
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201 JavaThread* thread = (JavaThread*)THREAD; |
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202 methodHandle method = *m; |
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203 int parameter_count = ArgumentCount(method->signature()).size() + (method->is_static() ? 0 : 1); |
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204 objArrayHandle args_array = oopFactory::new_objArray(SystemDictionary::Object_klass(), parameter_count, CHECK); |
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205 JavaArgumentBoxer jab(method->signature(), args_array, args, method->is_static(), thread); |
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206 Handle hotspot_method = GraalCompiler::createHotSpotResolvedJavaMethod(method, CHECK); |
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207 |
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208 JavaValue boxed_result(T_OBJECT); |
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209 JavaCallArguments boxed_args; |
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210 boxed_args.set_receiver(interpreter_instance()); |
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211 boxed_args.push_oop(hotspot_method); |
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212 boxed_args.push_oop(args_array); |
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213 |
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214 #ifndef PRODUCT |
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215 if (PrintHighLevelInterpreterVMTransitions) { |
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216 ResourceMark m; |
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217 tty->print_cr("VM -> high level interpreter (%s)", method->name_and_sig_as_C_string()); |
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218 } |
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219 #endif |
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220 |
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221 thread->set_high_level_interpreter_in_vm(false); |
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222 JavaCalls::call_virtual(&boxed_result, interpreter_klass(), vmSymbols::interpreter_execute_name(), vmSymbols::interpreter_execute_signature(), &boxed_args, thread); |
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223 thread->set_high_level_interpreter_in_vm(true); |
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224 |
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225 #ifndef PRODUCT |
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226 if (PrintHighLevelInterpreterVMTransitions) { |
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227 ResourceMark m; |
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228 tty->print_cr("High level interpreter (%s) -> VM", method->name_and_sig_as_C_string()); |
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229 } |
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230 #endif |
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231 |
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232 if (HAS_PENDING_EXCEPTION) { |
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233 return; |
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234 } |
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235 |
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236 // unbox the result if necessary |
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237 if (is_java_primitive(expected_result_type)) { |
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238 unbox_primitive(&boxed_result, result); |
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239 } else if (expected_result_type == T_OBJECT || expected_result_type == T_ARRAY) { |
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240 result->set_jobject(boxed_result.get_jobject()); |
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241 } |
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242 } |
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243 |
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244 void VMToInterpreter::unbox_primitive(JavaValue* boxed, JavaValue* result) { |
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245 oop box = JNIHandles::resolve(boxed->get_jobject()); |
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246 |
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247 jvalue value; |
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248 BasicType type = java_lang_boxing_object::get_value(box, &value); |
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249 switch (type) { |
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250 case T_BOOLEAN: |
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251 result->set_jint(value.z); |
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252 break; |
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253 case T_CHAR: |
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254 result->set_jint(value.c); |
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255 break; |
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256 case T_FLOAT: |
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257 result->set_jfloat(value.f); |
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258 break; |
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259 case T_DOUBLE: |
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260 result->set_jdouble(value.d); |
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261 break; |
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262 case T_BYTE: |
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263 result->set_jint(value.b); |
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264 break; |
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265 case T_SHORT: |
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266 result->set_jint(value.s); |
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267 break; |
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268 case T_INT: |
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269 result->set_jint(value.i); |
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270 break; |
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271 case T_LONG: |
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272 result->set_jlong(value.j); |
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273 break; |
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274 default: |
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275 ShouldNotReachHere(); |
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276 break; |
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277 } |
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278 } |
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279 |
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280 #endif // HIGH_LEVEL_INTERPRETER |