annotate src/share/vm/runtime/init.cpp @ 1959:9eecf81a02fb

7000578: CMS: assert(SafepointSynchronize::is_at_safepoint()) failed: Else races are possible Summary: Weakened assert in onj_is_alive() to allow its use at initialization time when is_at_safepoint() normally reports false; added some related asserts to check order of is_init_completed() after Universe::is_fully_initialized(). Reviewed-by: jcoomes
author ysr
date Tue, 16 Nov 2010 13:58:48 -0800
parents f55c4f82ab9d
children f95d63e2154a
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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 "incls/_precompiled.incl"
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26 # include "incls/_init.cpp.incl"
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27
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28 // Initialization done by VM thread in vm_init_globals()
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29 void check_ThreadShadow();
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30 void eventlog_init();
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31 void mutex_init();
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32 void chunkpool_init();
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33 void perfMemory_init();
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34
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35 // Initialization done by Java thread in init_globals()
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36 void management_init();
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37 void bytecodes_init();
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38 void classLoader_init();
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39 void codeCache_init();
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40 void VM_Version_init();
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41 void stubRoutines_init1();
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42 jint universe_init(); // dependent on codeCache_init and stubRoutines_init
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43 void interpreter_init(); // before any methods loaded
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44 void invocationCounter_init(); // before any methods loaded
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45 void marksweep_init();
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46 void accessFlags_init();
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47 void templateTable_init();
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48 void InterfaceSupport_init();
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49 void universe2_init(); // dependent on codeCache_init and stubRoutines_init
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50 void referenceProcessor_init();
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51 void jni_handles_init();
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52 void vmStructs_init();
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53
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54 void vtableStubs_init();
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55 void InlineCacheBuffer_init();
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56 void compilerOracle_init();
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57 void compilationPolicy_init();
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58
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59
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60 // Initialization after compiler initialization
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61 bool universe_post_init(); // must happen after compiler_init
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62 void javaClasses_init(); // must happen after vtable initialization
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63 void stubRoutines_init2(); // note: StubRoutines need 2-phase init
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64
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65 // Do not disable thread-local-storage, as it is important for some
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66 // JNI/JVM/JVMTI functions and signal handlers to work properly
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67 // during VM shutdown
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68 void perfMemory_exit();
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69 void ostream_exit();
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70
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71 void vm_init_globals() {
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72 check_ThreadShadow();
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73 basic_types_init();
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74 eventlog_init();
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75 mutex_init();
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76 chunkpool_init();
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77 perfMemory_init();
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78 }
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79
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80
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81 jint init_globals() {
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82 HandleMark hm;
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83 management_init();
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84 bytecodes_init();
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85 classLoader_init();
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86 codeCache_init();
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87 VM_Version_init();
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88 stubRoutines_init1();
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89 jint status = universe_init(); // dependent on codeCache_init and stubRoutines_init
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90 if (status != JNI_OK)
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91 return status;
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92
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93 interpreter_init(); // before any methods loaded
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94 invocationCounter_init(); // before any methods loaded
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95 marksweep_init();
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96 accessFlags_init();
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97 templateTable_init();
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98 InterfaceSupport_init();
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99 SharedRuntime::generate_stubs();
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100 universe2_init(); // dependent on codeCache_init and stubRoutines_init
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101 referenceProcessor_init();
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102 jni_handles_init();
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103 #ifndef VM_STRUCTS_KERNEL
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104 vmStructs_init();
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105 #endif // VM_STRUCTS_KERNEL
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106
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107 vtableStubs_init();
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108 InlineCacheBuffer_init();
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109 compilerOracle_init();
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110 compilationPolicy_init();
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111 VMRegImpl::set_regName();
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112
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113 if (!universe_post_init()) {
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114 return JNI_ERR;
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115 }
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116 javaClasses_init(); // must happen after vtable initialization
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117 stubRoutines_init2(); // note: StubRoutines need 2-phase init
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118
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119 // Generate MethodHandles adapters.
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120 MethodHandles::generate_adapters();
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121
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122 // Although we'd like to, we can't easily do a heap verify
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123 // here because the main thread isn't yet a JavaThread, so
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124 // its TLAB may not be made parseable from the usual interfaces.
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125 if (VerifyBeforeGC && !UseTLAB &&
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126 Universe::heap()->total_collections() >= VerifyGCStartAt) {
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127 Universe::heap()->prepare_for_verify();
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128 Universe::verify(); // make sure we're starting with a clean slate
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129 }
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130
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131 // All the flags that get adjusted by VM_Version_init and os::init_2
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132 // have been set so dump the flags now.
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133 if (PrintFlagsFinal) {
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134 CommandLineFlags::printFlags();
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135 }
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136
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137 return JNI_OK;
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138 }
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139
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140
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141 void exit_globals() {
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142 static bool destructorsCalled = false;
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143 if (!destructorsCalled) {
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144 destructorsCalled = true;
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145 perfMemory_exit();
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146 if (PrintSafepointStatistics) {
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147 // Print the collected safepoint statistics.
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148 SafepointSynchronize::print_stat_on_exit();
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149 }
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150 ostream_exit();
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151 }
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152 }
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153
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154
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155 static bool _init_completed = false;
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156
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157 bool is_init_completed() {
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158 return _init_completed;
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159 }
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161
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162 void set_init_completed() {
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163 assert(Universe::is_fully_initialized(), "Should have completed initialization");
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164 _init_completed = true;
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165 }