annotate src/share/vm/code/debugInfo.cpp @ 1972:f95d63e2154a

6989984: Use standard include model for Hospot Summary: Replaced MakeDeps and the includeDB files with more standardized solutions. Reviewed-by: coleenp, kvn, kamg
author stefank
date Tue, 23 Nov 2010 13:22:55 -0800
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children da91efe96a93
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1 /*
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2 * Copyright (c) 1997, 2010, 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
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25 #include "precompiled.hpp"
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26 #include "code/debugInfo.hpp"
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27 #include "code/debugInfoRec.hpp"
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28 #include "code/nmethod.hpp"
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29 #include "runtime/handles.inline.hpp"
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30
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31 // Comstructors
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32
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33 DebugInfoWriteStream::DebugInfoWriteStream(DebugInformationRecorder* recorder, int initial_size)
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34 : CompressedWriteStream(initial_size) {
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35 _recorder = recorder;
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36 }
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37
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38 // Serializing oops
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39
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40 void DebugInfoWriteStream::write_handle(jobject h) {
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41 write_int(recorder()->oop_recorder()->find_index(h));
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42 }
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43
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44 ScopeValue* DebugInfoReadStream::read_object_value() {
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45 int id = read_int();
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46 #ifdef ASSERT
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47 assert(_obj_pool != NULL, "object pool does not exist");
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48 for (int i = _obj_pool->length() - 1; i >= 0; i--) {
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49 assert(((ObjectValue*) _obj_pool->at(i))->id() != id, "should not be read twice");
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50 }
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51 #endif
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52 ObjectValue* result = new ObjectValue(id);
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53 // Cache the object since an object field could reference it.
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54 _obj_pool->push(result);
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55 result->read_object(this);
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56 return result;
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57 }
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58
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59 ScopeValue* DebugInfoReadStream::get_cached_object() {
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60 int id = read_int();
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61 assert(_obj_pool != NULL, "object pool does not exist");
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62 for (int i = _obj_pool->length() - 1; i >= 0; i--) {
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63 ObjectValue* ov = (ObjectValue*) _obj_pool->at(i);
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64 if (ov->id() == id) {
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65 return ov;
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66 }
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67 }
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68 ShouldNotReachHere();
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69 return NULL;
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70 }
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71
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72 // Serializing scope values
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73
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74 enum { LOCATION_CODE = 0, CONSTANT_INT_CODE = 1, CONSTANT_OOP_CODE = 2,
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75 CONSTANT_LONG_CODE = 3, CONSTANT_DOUBLE_CODE = 4,
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76 OBJECT_CODE = 5, OBJECT_ID_CODE = 6 };
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77
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78 ScopeValue* ScopeValue::read_from(DebugInfoReadStream* stream) {
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79 ScopeValue* result = NULL;
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80 switch(stream->read_int()) {
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81 case LOCATION_CODE: result = new LocationValue(stream); break;
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82 case CONSTANT_INT_CODE: result = new ConstantIntValue(stream); break;
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83 case CONSTANT_OOP_CODE: result = new ConstantOopReadValue(stream); break;
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84 case CONSTANT_LONG_CODE: result = new ConstantLongValue(stream); break;
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85 case CONSTANT_DOUBLE_CODE: result = new ConstantDoubleValue(stream); break;
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86 case OBJECT_CODE: result = stream->read_object_value(); break;
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87 case OBJECT_ID_CODE: result = stream->get_cached_object(); break;
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88 default: ShouldNotReachHere();
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89 }
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90 return result;
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91 }
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92
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93 // LocationValue
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94
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95 LocationValue::LocationValue(DebugInfoReadStream* stream) {
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96 _location = Location(stream);
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97 }
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98
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99 void LocationValue::write_on(DebugInfoWriteStream* stream) {
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100 stream->write_int(LOCATION_CODE);
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101 location().write_on(stream);
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102 }
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103
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104 void LocationValue::print_on(outputStream* st) const {
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105 location().print_on(st);
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106 }
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107
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108 // ObjectValue
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109
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110 void ObjectValue::read_object(DebugInfoReadStream* stream) {
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111 _klass = read_from(stream);
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112 assert(_klass->is_constant_oop(), "should be constant klass oop");
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113 int length = stream->read_int();
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114 for (int i = 0; i < length; i++) {
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115 ScopeValue* val = read_from(stream);
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116 _field_values.append(val);
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117 }
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118 }
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119
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120 void ObjectValue::write_on(DebugInfoWriteStream* stream) {
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121 if (_visited) {
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122 stream->write_int(OBJECT_ID_CODE);
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123 stream->write_int(_id);
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124 } else {
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125 _visited = true;
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126 stream->write_int(OBJECT_CODE);
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127 stream->write_int(_id);
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128 _klass->write_on(stream);
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129 int length = _field_values.length();
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130 stream->write_int(length);
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131 for (int i = 0; i < length; i++) {
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132 _field_values.at(i)->write_on(stream);
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133 }
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134 }
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135 }
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136
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137 void ObjectValue::print_on(outputStream* st) const {
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138 st->print("obj[%d]", _id);
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139 }
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140
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141 void ObjectValue::print_fields_on(outputStream* st) const {
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142 #ifndef PRODUCT
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143 if (_field_values.length() > 0) {
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144 _field_values.at(0)->print_on(st);
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145 }
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146 for (int i = 1; i < _field_values.length(); i++) {
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147 st->print(", ");
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148 _field_values.at(i)->print_on(st);
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149 }
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150 #endif
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151 }
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152
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153 // ConstantIntValue
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154
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155 ConstantIntValue::ConstantIntValue(DebugInfoReadStream* stream) {
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156 _value = stream->read_signed_int();
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157 }
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158
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159 void ConstantIntValue::write_on(DebugInfoWriteStream* stream) {
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160 stream->write_int(CONSTANT_INT_CODE);
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161 stream->write_signed_int(value());
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162 }
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163
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164 void ConstantIntValue::print_on(outputStream* st) const {
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165 st->print("%d", value());
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166 }
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167
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168 // ConstantLongValue
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169
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170 ConstantLongValue::ConstantLongValue(DebugInfoReadStream* stream) {
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171 _value = stream->read_long();
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172 }
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173
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174 void ConstantLongValue::write_on(DebugInfoWriteStream* stream) {
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175 stream->write_int(CONSTANT_LONG_CODE);
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176 stream->write_long(value());
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177 }
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178
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179 void ConstantLongValue::print_on(outputStream* st) const {
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180 st->print(INT64_FORMAT, value());
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181 }
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182
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183 // ConstantDoubleValue
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184
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185 ConstantDoubleValue::ConstantDoubleValue(DebugInfoReadStream* stream) {
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186 _value = stream->read_double();
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187 }
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188
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189 void ConstantDoubleValue::write_on(DebugInfoWriteStream* stream) {
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190 stream->write_int(CONSTANT_DOUBLE_CODE);
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191 stream->write_double(value());
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192 }
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193
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194 void ConstantDoubleValue::print_on(outputStream* st) const {
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195 st->print("%f", value());
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196 }
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197
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198 // ConstantOopWriteValue
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199
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200 void ConstantOopWriteValue::write_on(DebugInfoWriteStream* stream) {
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201 stream->write_int(CONSTANT_OOP_CODE);
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202 stream->write_handle(value());
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203 }
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204
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205 void ConstantOopWriteValue::print_on(outputStream* st) const {
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206 JNIHandles::resolve(value())->print_value_on(st);
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207 }
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208
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209
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210 // ConstantOopReadValue
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211
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212 ConstantOopReadValue::ConstantOopReadValue(DebugInfoReadStream* stream) {
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213 _value = Handle(stream->read_oop());
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214 }
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215
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216 void ConstantOopReadValue::write_on(DebugInfoWriteStream* stream) {
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217 ShouldNotReachHere();
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218 }
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219
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220 void ConstantOopReadValue::print_on(outputStream* st) const {
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221 value()()->print_value_on(st);
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222 }
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223
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224
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225 // MonitorValue
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226
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227 MonitorValue::MonitorValue(ScopeValue* owner, Location basic_lock, bool eliminated) {
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228 _owner = owner;
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229 _basic_lock = basic_lock;
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230 _eliminated = eliminated;
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231 }
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232
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233 MonitorValue::MonitorValue(DebugInfoReadStream* stream) {
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234 _basic_lock = Location(stream);
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235 _owner = ScopeValue::read_from(stream);
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236 _eliminated = (stream->read_bool() != 0);
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237 }
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238
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239 void MonitorValue::write_on(DebugInfoWriteStream* stream) {
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240 _basic_lock.write_on(stream);
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241 _owner->write_on(stream);
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242 stream->write_bool(_eliminated);
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243 }
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244
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245 #ifndef PRODUCT
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246 void MonitorValue::print_on(outputStream* st) const {
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247 st->print("monitor{");
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248 owner()->print_on(st);
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249 st->print(",");
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250 basic_lock().print_on(st);
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251 st->print("}");
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252 if (_eliminated) {
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253 st->print(" (eliminated)");
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254 }
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255 }
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256 #endif