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annotate src/share/vm/c1x/c1x_VMEntries.cpp @ 1419:7bf6a77b9c5a

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implement recent safepoint & exceptionobject ci changes, HotSpotVMConfig
author Lukas Stadler <lukas.stadler@oracle.com>
date Mon, 12 Jul 2010 15:05:17 -0700
parents 712c7ff1afc1
children 6223633ce7dd
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1 /*
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2 * Copyright 2000-2010 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25
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26 # include "incls/_precompiled.incl"
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27 # include "incls/_c1x_VMEntries.cpp.incl"
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28
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29 /*
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30 * Class: com_sun_hotspot_c1x_VMEntries
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31 * Method: RiMethod_code
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32 * Signature: (Ljava/lang/Object;)[B
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33 */
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34 JNIEXPORT jbyteArray JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiMethod_1code(JNIEnv *env, jclass, jobject method) {
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35 methodOop m = (methodOop)JNIHandles::resolve(method);
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36 int code_size = m->code_size();
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37 jbyteArray result = env->NewByteArray(code_size);
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38 env->SetByteArrayRegion(result, 0, code_size, (const jbyte *)m->code_base());
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39 return result;
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40 }
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41
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42 /*
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43 * Class: com_sun_hotspot_c1x_VMEntries
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44 * Method: RiMethod_maxStackSize
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45 * Signature: (Ljava/lang/Object;)I
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46 */
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47 JNIEXPORT jint JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiMethod_1maxStackSize(JNIEnv *, jclass, jobject method) {
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48 methodOop m = (methodOop)JNIHandles::resolve(method);
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49 return m->max_stack();
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50 }
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51
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52 /*
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53 * Class: com_sun_hotspot_c1x_VMEntries
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54 * Method: RiMethod_maxLocals
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55 * Signature: (Ljava/lang/Object;)I
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56 */
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57 JNIEXPORT jint JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiMethod_1maxLocals(JNIEnv *, jclass, jobject method) {
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58 methodOop m = (methodOop)JNIHandles::resolve(method);
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59 return m->max_locals();
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60 }
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61
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62 /*
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63 * Class: com_sun_hotspot_c1x_VMEntries
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64 * Method: RiMethod_holder
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65 * Signature: (Ljava/lang/Object;)Lcom/sun/cri/ri/RiType;
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66 */
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67 JNIEXPORT jobject JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiMethod_1holder(JNIEnv *, jclass, jobject method) {
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68 VM_ENTRY_MARK
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69 methodOop m = (methodOop)JNIHandles::resolve(method);
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70 klassOop k = m->method_holder();
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71 return JNIHandles::make_local(Thread::current(), C1XCompiler::get_RiType(k));
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72 }
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73
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74 /*
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75 * Class: com_sun_hotspot_c1x_VMEntries
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76 * Method: RiMethod_signature
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77 * Signature: (Ljava/lang/Object;)Lcom/sun/cri/ri/RiSignature;
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78 */
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79 JNIEXPORT jstring JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiMethod_1signature(JNIEnv *env, jclass, jobject method) {
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80 methodOop m = (methodOop)JNIHandles::resolve(method);
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81 return env->NewStringUTF(m->signature()->as_utf8());
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82 }
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83
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84 /*
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85 * Class: com_sun_hotspot_c1x_VMEntries
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86 * Method: RiMethod_name
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87 * Signature: (Ljava/lang/Object;)Ljava/lang/String;
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88 */
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89 JNIEXPORT jstring JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiMethod_1name(JNIEnv *env, jclass, jobject method) {
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90 methodOop m = (methodOop)JNIHandles::resolve(method);
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91 return env->NewStringUTF(m->name()->as_utf8());
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92 }
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93
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94 /*
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95 * Class: com_sun_hotspot_c1x_VMEntries
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96 * Method: RiSignature_lookupType
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97 * Signature: (Ljava/lang/String;Lcom/sun/cri/ri/RiType;)Lcom/sun/cri/ri/RiType;
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98 */
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99 JNIEXPORT jobject JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiSignature_1lookupType(JNIEnv *, jclass, jstring name, jobject accessor) {
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100 VM_ENTRY_MARK
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101 klassOop k = (klassOop)JNIHandles::resolve(accessor);
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102 oop n = JNIHandles::resolve_external_guard(name);
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103 if (n == NULL) {
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104 THROW_MSG_(vmSymbols::java_lang_NullPointerException(), "Name must not be null.", NULL);
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105 }
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106 char* utf8 = java_lang_String::as_utf8_string(n);
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107 symbolOop symbol = oopFactory::new_symbol(utf8, java_lang_String::length(n), THREAD);
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108 oop result = C1XCompiler::get_RiType(symbol, k);
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109 return JNIHandles::make_local(THREAD, result);
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110 }
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111
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112 /*
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113 * Class: com_sun_hotspot_c1x_VMEntries
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114 * Method: RiSignature_symbolToString
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115 * Signature: (Ljava/lang/Object;)Ljava/lang/String;
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116 */
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117 JNIEXPORT jstring JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiSignature_1symbolToString(JNIEnv *env, jclass, jobject symbol) {
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118 symbolOop s = (symbolOop)JNIHandles::resolve(symbol);
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119 return env->NewStringUTF(s->as_utf8());
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120 }
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121
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122 /*
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123 * Class: com_sun_hotspot_c1x_VMEntries
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124 * Method: RiType_javaClass
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125 * Signature: (Ljava/lang/Object;)Ljava/lang/Class;
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126 */
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127 JNIEXPORT jclass JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiType_1javaClass(JNIEnv *, jclass, jobject klass) {
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128 klassOop k = (klassOop)JNIHandles::resolve(klass);
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129 oop result = k->klass_part()->java_mirror();
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130 return (jclass) JNIHandles::make_local(Thread::current(), result);
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131 }
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132
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133 /*
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134 * Class: com_sun_hotspot_c1x_VMEntries
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135 * Method: RiType_name
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136 * Signature: (Ljava/lang/Object;)Ljava/lang/String;
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137 */
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138 JNIEXPORT jstring JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiType_1name(JNIEnv *env, jclass, jobject klass) {
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139 klassOop k = (klassOop)JNIHandles::resolve(klass);
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140 return env->NewStringUTF(k->klass_part()->name()->as_utf8());
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141 }
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142
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143
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144 /*
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145 * Class: com_sun_hotspot_c1x_VMEntries
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146 * Method: RiConstantPool_lookupConstant
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147 * Signature: (Ljava/lang/Object;I)Ljava/lang/Object;
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148 */
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149 JNIEXPORT jobject JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiConstantPool_1lookupConstant(JNIEnv *env, jclass, jobject cpHandle, jint index) {
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150
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151 VM_ENTRY_MARK;
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152 constantPoolOop cp = (constantPoolOop)JNIHandles::resolve(cpHandle);
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153
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154 oop result = NULL;
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155 constantTag tag = cp->tag_at(index);
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156 if (tag.is_int()) {
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157 result = VMExits::createCiConstantInt(cp->int_at(index));
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158 } else if (tag.is_long()) {
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159 result = VMExits::createCiConstantLong(cp->long_at(index));
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160 } else if (tag.is_float()) {
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161 result = VMExits::createCiConstantFloat(cp->float_at(index));
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162 } else if (tag.is_double()) {
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163 result = VMExits::createCiConstantDouble(cp->double_at(index));
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164 } else if (tag.is_string() || tag.is_unresolved_string()) {
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165 oop string = NULL;
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166 if (cp->is_pseudo_string_at(index)) {
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167 string = cp->pseudo_string_at(index);
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168 } else {
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169 string = cp->string_at(index, THREAD);
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170 if (HAS_PENDING_EXCEPTION) {
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171 CLEAR_PENDING_EXCEPTION;
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172 // TODO: Gracefully exit compilation.
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173 fatal("out of memory during compilation!");
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174 return NULL;
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175 }
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176 }
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177 result = VMExits::createCiConstantObject(string);
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178 } else if (tag.is_klass() || tag.is_unresolved_klass()) {
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179
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180 // TODO: Return RiType object
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181 ShouldNotReachHere();
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182 // 4881222: allow ldc to take a class type
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183 //bool ignore;
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184 //ciKlass* klass = get_klass_by_index_impl(cpool, index, ignore, accessor);
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185 //if (HAS_PENDING_EXCEPTION) {
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186 // CLEAR_PENDING_EXCEPTION;
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187 // record_out_of_memory_failure();
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188 // return ciConstant();
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189 //}
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190 //assert (klass->is_instance_klass() || klass->is_array_klass(),
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191 // "must be an instance or array klass ");
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192 //return ciConstant(T_OBJECT, klass);
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193 } else if (tag.is_object()) {
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194 oop obj = cp->object_at(index);
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195 assert(obj->is_instance(), "must be an instance");
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196 result = VMExits::createCiConstantObject(obj);
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197 } else {
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198 ShouldNotReachHere();
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199 }
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200
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201 return JNIHandles::make_local(THREAD, result);
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202 }
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203
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204 /*
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205 * Class: com_sun_hotspot_c1x_VMEntries
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206 * Method: RiConstantPool_lookupMethod
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207 * Signature: (Ljava/lang/Object;I)Lcom/sun/cri/ri/RiMethod;
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208 */
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209 JNIEXPORT jobject JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiConstantPool_1lookupMethod(JNIEnv *env, jclass, jobject cpHandle, jint index, jbyte byteCode) {
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210 VM_ENTRY_MARK;
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211 constantPoolOop cp = (constantPoolOop)JNIHandles::resolve(cpHandle);
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212 Bytecodes::Code bc = (Bytecodes::Code)(((int)byteCode) & 0xFF);
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213 ciInstanceKlass* loading_klass = (ciInstanceKlass *)CURRENT_ENV->get_object(cp->pool_holder());
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214 ciMethod *method = CURRENT_ENV->get_method_by_index(cp, index, bc, loading_klass);
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215 return JNIHandles::make_local(THREAD, C1XCompiler::get_RiMethod(method));
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216 }
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217
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218 /*
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219 * Class: com_sun_hotspot_c1x_VMEntries
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220 * Method: RiConstantPool_lookupSignature
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221 * Signature: (Ljava/lang/Object;I)Lcom/sun/cri/ri/RiSignature;
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222 */
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223 JNIEXPORT jobject JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiConstantPool_1lookupSignature(JNIEnv *env, jclass, jobject cpHandle, jint index) {
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224 fatal("currently unsupported");
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225 return NULL;
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226 }
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227
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228 /*
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229 * Class: com_sun_hotspot_c1x_VMEntries
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230 * Method: RiConstantPool_lookupType
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231 * Signature: (Ljava/lang/Object;I)Lcom/sun/cri/ri/RiType;
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232 */
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233 JNIEXPORT jobject JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiConstantPool_1lookupType(JNIEnv *env, jclass, jobject cpHandle, jint index) {
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234 VM_ENTRY_MARK;
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235 constantPoolOop cp = (constantPoolOop)JNIHandles::resolve(cpHandle);
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236 ciInstanceKlass* loading_klass = (ciInstanceKlass *)CURRENT_ENV->get_object(cp->pool_holder());
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237 bool is_accessible = false;
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238 ciKlass *klass = CURRENT_ENV->get_klass_by_index(cp, index, is_accessible, loading_klass);
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239 return JNIHandles::make_local(THREAD, C1XCompiler::get_RiType(klass));
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240
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241 }
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242
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243 /*
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244 * Class: com_sun_hotspot_c1x_VMEntries
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245 * Method: RiConstantPool_lookupField
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246 * Signature: (Ljava/lang/Object;I)Lcom/sun/cri/ri/RiField;
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247 */
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248 JNIEXPORT jobject JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiConstantPool_1lookupField(JNIEnv *env, jclass, jobject cpHandle, jint index) {
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249 VM_ENTRY_MARK;
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250 constantPoolOop cp = (constantPoolOop)JNIHandles::resolve(cpHandle);
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251 ciInstanceKlass* loading_klass = (ciInstanceKlass *)CURRENT_ENV->get_object(cp->pool_holder());
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252 ciField *field = CURRENT_ENV->get_field_by_index(loading_klass, index);
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253 return JNIHandles::make_local(THREAD, C1XCompiler::get_RiField(field));
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254 }
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255
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256 /*
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257 * Class: com_sun_hotspot_c1x_VMEntries
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258 * Method: findRiType
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259 * Signature: (Ljava/lang/Object;)Lcom/sun/cri/ri/RiType;
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260 */
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261 JNIEXPORT jobject JNICALL Java_com_sun_hotspot_c1x_VMEntries_findRiType(JNIEnv *, jclass, jobject klass) {
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262 VM_ENTRY_MARK;
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263 klassOop o = (klassOop)JNIHandles::resolve(klass);
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264 return JNIHandles::make_local(THREAD, C1XCompiler::get_RiType(o));
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265 }
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266
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267 /*
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268 * Class: com_sun_hotspot_c1x_VMEntries
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269 * Method: RiRuntime_getConstantPool
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270 * Signature: (Ljava/lang/Object;)Lcom/sun/cri/ri/RiConstantPool;
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271 */
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272 JNIEXPORT jobject JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiRuntime_1getConstantPool(JNIEnv *, jclass, jobject klass) {
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273 VM_ENTRY_MARK;
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274 klassOop o = (klassOop)JNIHandles::resolve(klass);
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275 return JNIHandles::make_local(THREAD, C1XCompiler::get_RiConstantPool(((instanceKlass*)o->klass_part())->constants()));
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276 }
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277
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278 /*
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279 * Class: com_sun_hotspot_c1x_VMEntries
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280 * Method: RiType_isArrayClass
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281 * Signature: (Ljava/lang/Object;)Z
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282 */
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283 JNIEXPORT jboolean JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiType_1isArrayClass(JNIEnv *, jclass, jobject klass) {
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284 klassOop o = (klassOop)JNIHandles::resolve(klass);
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285 o->print();
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286 bool result = o->klass_part()->oop_is_array();
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287 tty->print_cr("result=%d", (int)result);
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288 return result;
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289 }
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290
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291 /*
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292 * Class: com_sun_hotspot_c1x_VMEntries
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293 * Method: RiType_isInstanceClass
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294 * Signature: (Ljava/lang/Object;)Z
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295 */
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296 JNIEXPORT jboolean JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiType_1isInstanceClass(JNIEnv *, jclass, jobject klass) {
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297 klassOop o = (klassOop)JNIHandles::resolve(klass);
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298 return o->klass_part()->oop_is_instanceKlass();
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299 }
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300
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301 /*
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302 * Class: com_sun_hotspot_c1x_VMEntries
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303 * Method: RiType_isInterface
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304 * Signature: (Ljava/lang/Object;)Z
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305 */
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306 JNIEXPORT jboolean JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiType_1isInterface(JNIEnv *, jclass, jobject klass) {
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307 klassOop o = (klassOop)JNIHandles::resolve(klass);
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308 return o->klass_part()->is_interface();
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309 }
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310
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311 /*
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312 * Class: com_sun_hotspot_c1x_VMEntries
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313 * Method: RiMethod_accessFlags
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314 * Signature: (Ljava/lang/Object;)I
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315 */
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316 JNIEXPORT jint JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiMethod_1accessFlags(JNIEnv *, jclass, jobject method) {
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317 methodOop m = (methodOop)JNIHandles::resolve(method);
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318 return m->access_flags().as_int();
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319 }
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320
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321 /*
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322 * Class: com_sun_hotspot_c1x_VMEntries
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323 * Method: installCode
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324 * Signature: (Ljava/lang/Object;[BI)V
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325 */
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326 JNIEXPORT void JNICALL Java_com_sun_hotspot_c1x_VMEntries_installCode(JNIEnv *jniEnv, jclass, jobject method, jbyteArray code, jint frameSize) {
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327
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328 methodOop m = (methodOop)JNIHandles::resolve(method);
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329 jboolean isCopy = false;
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330 jbyte *codeBytes = jniEnv->GetByteArrayElements(code, &isCopy);
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331 // TODO: Check if we need to disallocate?
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332 int codeSize = jniEnv->GetArrayLength(code);
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333 VM_ENTRY_MARK;
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334 ciEnv *env = CURRENT_ENV;
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335
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336 env->set_oop_recorder(new OopRecorder(env->arena()));
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337 env->set_debug_info(new DebugInformationRecorder(env->oop_recorder()));
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338 env->set_dependencies(new Dependencies(env));
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339 ciMethod *ciMethodObject = (ciMethod *)env->get_object(m);
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340 CodeOffsets offsets;
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341
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342 // TODO: This is a hack.. Produce correct entries.
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343 offsets.set_value(CodeOffsets::Exceptions, 0);
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344 offsets.set_value(CodeOffsets::Deopt, 0);
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345
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346 CodeBuffer buffer((address)codeBytes, codeSize);
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347 buffer.print();
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348 CodeSection *inst_section = buffer.insts();
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349 inst_section->set_end(inst_section->start() + codeSize);
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350 buffer.initialize_oop_recorder(env->oop_recorder());
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351 OopMapSet oop_map_set;
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352 ExceptionHandlerTable handler_table;
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353 ImplicitExceptionTable inc_table;
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354 {
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355 ThreadToNativeFromVM t((JavaThread*)THREAD);
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356 env->register_method(ciMethodObject, -1, &offsets, 0, &buffer, frameSize, &oop_map_set, &handler_table, &inc_table, NULL, env->comp_level(), false, false);
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357
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358 }
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359 }
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360
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361 // helpers used to set fields in the HotSpotVMConfig object
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362 #define SET_CONFIG_BOOLEAN(name, value) { jfieldID id = jniEnv->GetFieldID(klass, #name, "Z"); jniEnv->SetBooleanField(config, id, value); }
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363 #define SET_CONFIG_INT(name, value) { jfieldID id = jniEnv->GetFieldID(klass, #name, "I"); jniEnv->SetIntField(config, id, value); }
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364
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365 /*
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366 * Class: com_sun_hotspot_c1x_VMEntries
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367 * Method: getConfiguration
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368 * Signature: ()Lcom/sun/hotspot/c1x/HotSpotVMConfig;
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369 */
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370 JNIEXPORT jobject JNICALL Java_com_sun_hotspot_c1x_VMEntries_getConfiguration(JNIEnv *jniEnv, jclass) {
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371 jclass klass = jniEnv->FindClass("com/sun/hotspot/c1x/HotSpotVMConfig");
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372 assert(klass != NULL, "HotSpot vm config class not found");
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373 jobject config = jniEnv->AllocObject(klass);
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374 jfieldID id = jniEnv->GetFieldID(klass, "windowsOs", "Z");
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375 #ifdef _WIN64
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376 SET_CONFIG_BOOLEAN(windowsOs, true)
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377 #else
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378 SET_CONFIG_BOOLEAN(windowsOs, false)
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379 #endif
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380 return config;
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381 }
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382
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383
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384 JNINativeMethod VMEntries_methods[] = {
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385 {CC"RiMethod_code", CC"(Ljava/lang/Object;)[B", FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiMethod_1code)},
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386 {CC"RiMethod_maxStackSize", CC"(Ljava/lang/Object;)I", FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiMethod_1maxStackSize)},
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387 {CC"RiMethod_maxLocals", CC"(Ljava/lang/Object;)I", FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiMethod_1maxLocals)},
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388 {CC"RiMethod_holder", CC"(Ljava/lang/Object;)Lcom/sun/cri/ri/RiType;", FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiMethod_1holder)},
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389 {CC"RiMethod_signature", CC"(Ljava/lang/Object;)Ljava/lang/String;", FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiMethod_1signature)},
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390 {CC"RiMethod_name", CC"(Ljava/lang/Object;)Ljava/lang/String;", FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiMethod_1name)},
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391 {CC"RiSignature_lookupType", CC"(Ljava/lang/String;Ljava/lang/Object;)Lcom/sun/cri/ri/RiType;", FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiSignature_1lookupType)},
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392 {CC"RiType_javaClass", CC"(Ljava/lang/Object;)Ljava/lang/Class;", FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiType_1javaClass)},
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393 {CC"RiType_name", CC"(Ljava/lang/Object;)Ljava/lang/String;", FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiType_1name)},
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394 {CC"RiConstantPool_lookupConstant", CC"(Ljava/lang/Object;I)Ljava/lang/Object;", FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiConstantPool_1lookupConstant)},
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395 {CC"RiConstantPool_lookupMethod", CC"(Ljava/lang/Object;IB)Lcom/sun/cri/ri/RiMethod;", FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiConstantPool_1lookupMethod)},
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396 {CC"RiConstantPool_lookupSignature", CC"(Ljava/lang/Object;I)Lcom/sun/cri/ri/RiSignature;", FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiConstantPool_1lookupSignature)},
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397 {CC"RiConstantPool_lookupType", CC"(Ljava/lang/Object;I)Lcom/sun/cri/ri/RiType;", FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiConstantPool_1lookupType)},
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398 {CC"RiConstantPool_lookupField", CC"(Ljava/lang/Object;I)Lcom/sun/cri/ri/RiField;", FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiConstantPool_1lookupField)},
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399 {CC"RiRuntime_getConstantPool", CC"(Ljava/lang/Object;)Lcom/sun/cri/ri/RiConstantPool;", FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiRuntime_1getConstantPool)},
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400 {CC"RiType_isArrayClass", CC"(Ljava/lang/Object;)Z", FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiType_1isArrayClass)},
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401 {CC"RiType_isInstanceClass", CC"(Ljava/lang/Object;)Z", FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiType_1isInstanceClass)},
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402 {CC"RiType_isInterface", CC"(Ljava/lang/Object;)Z", FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiType_1isInterface)},
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403 {CC"RiMethod_accessFlags", CC"(Ljava/lang/Object;)I", FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiMethod_1accessFlags)},
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404 {CC"installCode", CC"(Ljava/lang/Object;[BI)V", FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_installCode)},
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405 {CC"getConfiguration", CC"()Lcom/sun/hotspot/c1x/HotSpotVMConfig;", FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_getConfiguration)}
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406 };
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407
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408 int VMEntries_methods_count() {
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409 return sizeof(VMEntries_methods) / sizeof(JNINativeMethod);
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410 }