Mercurial > hg > truffle
annotate src/share/vm/oops/instanceMirrorKlass.cpp @ 7666:31540ca73e81
Remove ControlFlowException in SimpleLanguage.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Fri, 01 Feb 2013 19:53:52 +0100 |
parents | aed758eda82a |
children | db9981fd3124 |
rev | line source |
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1 /* |
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2 * Copyright (c) 2011, 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 |
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25 #include "precompiled.hpp" |
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26 #include "classfile/javaClasses.hpp" |
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27 #include "classfile/systemDictionary.hpp" |
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28 #include "gc_implementation/shared/markSweep.inline.hpp" |
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29 #include "gc_interface/collectedHeap.inline.hpp" |
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30 #include "memory/genOopClosures.inline.hpp" |
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31 #include "memory/oopFactory.hpp" |
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32 #include "oops/instanceKlass.hpp" |
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33 #include "oops/instanceMirrorKlass.hpp" |
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34 #include "oops/instanceOop.hpp" |
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35 #include "oops/oop.inline.hpp" |
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36 #include "oops/symbol.hpp" |
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37 #include "runtime/handles.inline.hpp" |
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38 #ifndef SERIALGC |
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39 #include "gc_implementation/concurrentMarkSweep/cmsOopClosures.inline.hpp" |
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40 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp" |
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41 #include "gc_implementation/g1/g1OopClosures.inline.hpp" |
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42 #include "gc_implementation/g1/g1RemSet.inline.hpp" |
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43 #include "gc_implementation/g1/heapRegionSeq.inline.hpp" |
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44 #include "gc_implementation/parNew/parOopClosures.inline.hpp" |
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45 #include "gc_implementation/parallelScavenge/psPromotionManager.inline.hpp" |
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46 #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp" |
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47 #include "oops/oop.pcgc.inline.hpp" |
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48 #endif |
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49 |
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50 int InstanceMirrorKlass::_offset_of_static_fields = 0; |
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51 |
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52 #ifdef ASSERT |
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53 template <class T> void assert_is_in(T *p) { |
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54 T heap_oop = oopDesc::load_heap_oop(p); |
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55 if (!oopDesc::is_null(heap_oop)) { |
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56 oop o = oopDesc::decode_heap_oop_not_null(heap_oop); |
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57 assert(Universe::heap()->is_in(o), "should be in heap"); |
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58 } |
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59 } |
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60 template <class T> void assert_is_in_closed_subset(T *p) { |
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61 T heap_oop = oopDesc::load_heap_oop(p); |
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62 if (!oopDesc::is_null(heap_oop)) { |
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63 oop o = oopDesc::decode_heap_oop_not_null(heap_oop); |
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64 assert(Universe::heap()->is_in_closed_subset(o), "should be in closed"); |
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65 } |
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66 } |
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67 template <class T> void assert_is_in_reserved(T *p) { |
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68 T heap_oop = oopDesc::load_heap_oop(p); |
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69 if (!oopDesc::is_null(heap_oop)) { |
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70 oop o = oopDesc::decode_heap_oop_not_null(heap_oop); |
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71 assert(Universe::heap()->is_in_reserved(o), "should be in reserved"); |
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72 } |
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73 } |
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74 template <class T> void assert_nothing(T *p) {} |
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75 |
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76 #else |
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77 template <class T> void assert_is_in(T *p) {} |
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78 template <class T> void assert_is_in_closed_subset(T *p) {} |
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79 template <class T> void assert_is_in_reserved(T *p) {} |
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80 template <class T> void assert_nothing(T *p) {} |
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81 #endif // ASSERT |
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82 |
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83 #define InstanceMirrorKlass_SPECIALIZED_OOP_ITERATE( \ |
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84 T, start_p, count, do_oop, \ |
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85 assert_fn) \ |
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86 { \ |
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87 T* p = (T*)(start_p); \ |
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88 T* const end = p + (count); \ |
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89 while (p < end) { \ |
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90 (assert_fn)(p); \ |
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91 do_oop; \ |
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92 ++p; \ |
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93 } \ |
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94 } |
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95 |
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96 #define InstanceMirrorKlass_SPECIALIZED_BOUNDED_OOP_ITERATE( \ |
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97 T, start_p, count, low, high, \ |
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98 do_oop, assert_fn) \ |
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99 { \ |
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100 T* const l = (T*)(low); \ |
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101 T* const h = (T*)(high); \ |
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102 assert(mask_bits((intptr_t)l, sizeof(T)-1) == 0 && \ |
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103 mask_bits((intptr_t)h, sizeof(T)-1) == 0, \ |
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104 "bounded region must be properly aligned"); \ |
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105 T* p = (T*)(start_p); \ |
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106 T* end = p + (count); \ |
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107 if (p < l) p = l; \ |
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108 if (end > h) end = h; \ |
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109 while (p < end) { \ |
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110 (assert_fn)(p); \ |
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111 do_oop; \ |
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112 ++p; \ |
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113 } \ |
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114 } |
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115 |
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116 |
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117 #define InstanceMirrorKlass_OOP_ITERATE(start_p, count, \ |
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118 do_oop, assert_fn) \ |
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119 { \ |
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120 if (UseCompressedOops) { \ |
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121 InstanceMirrorKlass_SPECIALIZED_OOP_ITERATE(narrowOop, \ |
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122 start_p, count, \ |
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123 do_oop, assert_fn) \ |
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124 } else { \ |
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125 InstanceMirrorKlass_SPECIALIZED_OOP_ITERATE(oop, \ |
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126 start_p, count, \ |
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127 do_oop, assert_fn) \ |
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128 } \ |
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129 } |
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130 |
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131 // The following macros call specialized macros, passing either oop or |
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132 // narrowOop as the specialization type. These test the UseCompressedOops |
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133 // flag. |
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134 #define InstanceMirrorKlass_BOUNDED_OOP_ITERATE(start_p, count, low, high, \ |
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135 do_oop, assert_fn) \ |
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136 { \ |
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137 if (UseCompressedOops) { \ |
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138 InstanceMirrorKlass_SPECIALIZED_BOUNDED_OOP_ITERATE(narrowOop, \ |
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139 start_p, count, \ |
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140 low, high, \ |
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141 do_oop, assert_fn) \ |
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142 } else { \ |
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143 InstanceMirrorKlass_SPECIALIZED_BOUNDED_OOP_ITERATE(oop, \ |
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144 start_p, count, \ |
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145 low, high, \ |
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146 do_oop, assert_fn) \ |
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147 } \ |
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148 } |
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149 |
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150 |
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151 void InstanceMirrorKlass::oop_follow_contents(oop obj) { |
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152 InstanceKlass::oop_follow_contents(obj); |
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153 |
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154 // Follow the klass field in the mirror. |
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155 Klass* klass = java_lang_Class::as_Klass(obj); |
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156 if (klass != NULL) { |
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157 MarkSweep::follow_klass(klass); |
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158 } else { |
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159 // If klass is NULL then this a mirror for a primitive type. |
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160 // We don't have to follow them, since they are handled as strong |
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161 // roots in Universe::oops_do. |
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162 assert(java_lang_Class::is_primitive(obj), "Sanity check"); |
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163 } |
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164 |
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165 InstanceMirrorKlass_OOP_ITERATE( \ |
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166 start_of_static_fields(obj), java_lang_Class::static_oop_field_count(obj), \ |
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167 MarkSweep::mark_and_push(p), \ |
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168 assert_is_in_closed_subset) |
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169 } |
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170 |
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171 #ifndef SERIALGC |
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172 void InstanceMirrorKlass::oop_follow_contents(ParCompactionManager* cm, |
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173 oop obj) { |
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174 InstanceKlass::oop_follow_contents(cm, obj); |
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175 |
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176 // Follow the klass field in the mirror. |
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177 Klass* klass = java_lang_Class::as_Klass(obj); |
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178 if (klass != NULL) { |
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179 PSParallelCompact::follow_klass(cm, klass); |
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180 } else { |
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181 // If klass is NULL then this a mirror for a primitive type. |
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182 // We don't have to follow them, since they are handled as strong |
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183 // roots in Universe::oops_do. |
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184 assert(java_lang_Class::is_primitive(obj), "Sanity check"); |
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185 } |
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186 |
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187 InstanceMirrorKlass_OOP_ITERATE( \ |
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188 start_of_static_fields(obj), java_lang_Class::static_oop_field_count(obj), \ |
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189 PSParallelCompact::mark_and_push(cm, p), \ |
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190 assert_is_in) |
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191 } |
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192 #endif // SERIALGC |
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193 |
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194 int InstanceMirrorKlass::oop_adjust_pointers(oop obj) { |
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195 int size = oop_size(obj); |
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196 InstanceKlass::oop_adjust_pointers(obj); |
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197 |
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198 // Follow the klass field in the mirror. |
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199 Klass* klass = java_lang_Class::as_Klass(obj); |
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200 if (klass != NULL) { |
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201 MarkSweep::adjust_klass(klass); |
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202 } else { |
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203 // If klass is NULL then this a mirror for a primitive type. |
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204 // We don't have to follow them, since they are handled as strong |
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205 // roots in Universe::oops_do. |
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206 assert(java_lang_Class::is_primitive(obj), "Sanity check"); |
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207 } |
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208 |
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209 InstanceMirrorKlass_OOP_ITERATE( \ |
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210 start_of_static_fields(obj), java_lang_Class::static_oop_field_count(obj), \ |
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211 MarkSweep::adjust_pointer(p), \ |
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212 assert_nothing) |
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213 return size; |
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214 } |
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215 |
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216 #define InstanceMirrorKlass_SPECIALIZED_OOP_ITERATE_DEFN(T, nv_suffix) \ |
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217 InstanceMirrorKlass_OOP_ITERATE( \ |
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218 start_of_static_fields(obj), java_lang_Class::static_oop_field_count(obj), \ |
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219 (closure)->do_oop##nv_suffix(p), \ |
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220 assert_is_in_closed_subset) \ |
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221 return oop_size(obj); \ |
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222 |
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223 #define InstanceMirrorKlass_BOUNDED_SPECIALIZED_OOP_ITERATE(T, nv_suffix, mr) \ |
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224 InstanceMirrorKlass_BOUNDED_OOP_ITERATE( \ |
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225 start_of_static_fields(obj), java_lang_Class::static_oop_field_count(obj), \ |
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226 mr.start(), mr.end(), \ |
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227 (closure)->do_oop##nv_suffix(p), \ |
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228 assert_is_in_closed_subset) \ |
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229 return oop_size(obj); \ |
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230 |
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231 |
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232 #define if_do_metadata_checked(closure, nv_suffix) \ |
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233 /* Make sure the non-virtual and the virtual versions match. */ \ |
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234 assert(closure->do_metadata##nv_suffix() == closure->do_metadata(), \ |
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235 "Inconsistency in do_metadata"); \ |
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236 if (closure->do_metadata##nv_suffix()) |
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237 |
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238 // Macro to define InstanceMirrorKlass::oop_oop_iterate for virtual/nonvirtual for |
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239 // all closures. Macros calling macros above for each oop size. |
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240 |
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241 #define InstanceMirrorKlass_OOP_OOP_ITERATE_DEFN(OopClosureType, nv_suffix) \ |
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242 \ |
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243 int InstanceMirrorKlass:: \ |
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244 oop_oop_iterate##nv_suffix(oop obj, OopClosureType* closure) { \ |
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245 /* Get size before changing pointers */ \ |
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246 SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::irk); \ |
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247 \ |
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248 InstanceKlass::oop_oop_iterate##nv_suffix(obj, closure); \ |
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249 \ |
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250 if_do_metadata_checked(closure, nv_suffix) { \ |
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251 Klass* klass = java_lang_Class::as_Klass(obj); \ |
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252 /* We'll get NULL for primitive mirrors. */ \ |
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253 if (klass != NULL) { \ |
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254 closure->do_klass##nv_suffix(klass); \ |
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255 } \ |
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256 } \ |
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257 \ |
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258 if (UseCompressedOops) { \ |
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259 InstanceMirrorKlass_SPECIALIZED_OOP_ITERATE_DEFN(narrowOop, nv_suffix); \ |
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260 } else { \ |
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261 InstanceMirrorKlass_SPECIALIZED_OOP_ITERATE_DEFN(oop, nv_suffix); \ |
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262 } \ |
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263 } |
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264 |
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265 #ifndef SERIALGC |
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266 #define InstanceMirrorKlass_OOP_OOP_ITERATE_BACKWARDS_DEFN(OopClosureType, nv_suffix) \ |
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267 \ |
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268 int InstanceMirrorKlass:: \ |
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269 oop_oop_iterate_backwards##nv_suffix(oop obj, OopClosureType* closure) { \ |
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270 /* Get size before changing pointers */ \ |
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271 SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::irk); \ |
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272 \ |
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273 InstanceKlass::oop_oop_iterate_backwards##nv_suffix(obj, closure); \ |
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274 \ |
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275 if (UseCompressedOops) { \ |
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276 InstanceMirrorKlass_SPECIALIZED_OOP_ITERATE_DEFN(narrowOop, nv_suffix); \ |
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277 } else { \ |
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278 InstanceMirrorKlass_SPECIALIZED_OOP_ITERATE_DEFN(oop, nv_suffix); \ |
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279 } \ |
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280 } |
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281 #endif // !SERIALGC |
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282 |
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283 |
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284 #define InstanceMirrorKlass_OOP_OOP_ITERATE_DEFN_m(OopClosureType, nv_suffix) \ |
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285 \ |
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286 int InstanceMirrorKlass:: \ |
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287 oop_oop_iterate##nv_suffix##_m(oop obj, \ |
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288 OopClosureType* closure, \ |
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289 MemRegion mr) { \ |
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290 SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::irk); \ |
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291 \ |
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292 InstanceKlass::oop_oop_iterate##nv_suffix##_m(obj, closure, mr); \ |
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293 \ |
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294 if_do_metadata_checked(closure, nv_suffix) { \ |
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295 if (mr.contains(obj)) { \ |
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296 Klass* klass = java_lang_Class::as_Klass(obj); \ |
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297 /* We'll get NULL for primitive mirrors. */ \ |
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298 if (klass != NULL) { \ |
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299 closure->do_klass##nv_suffix(klass); \ |
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300 } \ |
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301 } \ |
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302 } \ |
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303 \ |
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304 if (UseCompressedOops) { \ |
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305 InstanceMirrorKlass_BOUNDED_SPECIALIZED_OOP_ITERATE(narrowOop, nv_suffix, mr); \ |
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306 } else { \ |
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307 InstanceMirrorKlass_BOUNDED_SPECIALIZED_OOP_ITERATE(oop, nv_suffix, mr); \ |
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308 } \ |
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309 } |
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310 |
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311 ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceMirrorKlass_OOP_OOP_ITERATE_DEFN) |
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312 ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceMirrorKlass_OOP_OOP_ITERATE_DEFN) |
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313 #ifndef SERIALGC |
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314 ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceMirrorKlass_OOP_OOP_ITERATE_BACKWARDS_DEFN) |
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315 ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceMirrorKlass_OOP_OOP_ITERATE_BACKWARDS_DEFN) |
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316 #endif // SERIALGC |
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317 ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceMirrorKlass_OOP_OOP_ITERATE_DEFN_m) |
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318 ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceMirrorKlass_OOP_OOP_ITERATE_DEFN_m) |
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319 |
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320 #ifndef SERIALGC |
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321 void InstanceMirrorKlass::oop_push_contents(PSPromotionManager* pm, oop obj) { |
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322 // Note that we don't have to follow the mirror -> klass pointer, since all |
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323 // klasses that are dirty will be scavenged when we iterate over the |
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324 // ClassLoaderData objects. |
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325 |
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326 InstanceKlass::oop_push_contents(pm, obj); |
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327 InstanceMirrorKlass_OOP_ITERATE( \ |
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328 start_of_static_fields(obj), java_lang_Class::static_oop_field_count(obj),\ |
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329 if (PSScavenge::should_scavenge(p)) { \ |
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330 pm->claim_or_forward_depth(p); \ |
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331 }, \ |
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332 assert_nothing ) |
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333 } |
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334 |
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335 int InstanceMirrorKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) { |
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336 int size = oop_size(obj); |
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337 InstanceKlass::oop_update_pointers(cm, obj); |
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338 |
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339 // Follow the klass field in the mirror. |
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340 Klass* klass = java_lang_Class::as_Klass(obj); |
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341 if (klass != NULL) { |
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342 PSParallelCompact::adjust_klass(cm, klass); |
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343 } else { |
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344 // If klass is NULL then this a mirror for a primitive type. |
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345 // We don't have to follow them, since they are handled as strong |
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346 // roots in Universe::oops_do. |
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347 assert(java_lang_Class::is_primitive(obj), "Sanity check"); |
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348 } |
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349 |
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350 InstanceMirrorKlass_OOP_ITERATE( \ |
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351 start_of_static_fields(obj), java_lang_Class::static_oop_field_count(obj),\ |
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352 PSParallelCompact::adjust_pointer(p), \ |
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353 assert_nothing) |
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354 return size; |
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355 } |
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356 #endif // SERIALGC |
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357 |
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358 int InstanceMirrorKlass::instance_size(KlassHandle k) { |
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359 if (k() != NULL && k->oop_is_instance()) { |
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360 return align_object_size(size_helper() + InstanceKlass::cast(k())->static_field_size()); |
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361 } |
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362 return size_helper(); |
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363 } |
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364 |
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365 instanceOop InstanceMirrorKlass::allocate_instance(KlassHandle k, TRAPS) { |
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366 // Query before forming handle. |
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367 int size = instance_size(k); |
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368 KlassHandle h_k(THREAD, this); |
4009 | 369 instanceOop i = (instanceOop) CollectedHeap::Class_obj_allocate(h_k, size, k, CHECK_NULL); |
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370 return i; |
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371 } |
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372 |
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373 int InstanceMirrorKlass::oop_size(oop obj) const { |
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374 return java_lang_Class::oop_size(obj); |
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375 } |
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376 |
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377 int InstanceMirrorKlass::compute_static_oop_field_count(oop obj) { |
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378 Klass* k = java_lang_Class::as_Klass(obj); |
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379 if (k != NULL && k->oop_is_instance()) { |
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380 return InstanceKlass::cast(k)->static_oop_field_count(); |
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381 } |
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382 return 0; |
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383 } |