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1 /* |
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2 * Copyright 1997-2007 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 #include "incls/_precompiled.incl" |
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26 #include "incls/_java.cpp.incl" |
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27 |
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28 HS_DTRACE_PROBE_DECL(hotspot, vm__shutdown); |
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29 |
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30 #ifndef PRODUCT |
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31 |
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32 // Statistics printing (method invocation histogram) |
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33 |
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34 GrowableArray<methodOop>* collected_invoked_methods; |
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35 |
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36 void collect_invoked_methods(methodOop m) { |
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37 if (m->invocation_count() + m->compiled_invocation_count() >= 1 ) { |
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38 collected_invoked_methods->push(m); |
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39 } |
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40 } |
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41 |
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42 |
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43 GrowableArray<methodOop>* collected_profiled_methods; |
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44 |
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45 void collect_profiled_methods(methodOop m) { |
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46 methodHandle mh(Thread::current(), m); |
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47 if ((m->method_data() != NULL) && |
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48 (PrintMethodData || CompilerOracle::should_print(mh))) { |
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49 collected_profiled_methods->push(m); |
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50 } |
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51 } |
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52 |
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53 |
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54 int compare_methods(methodOop* a, methodOop* b) { |
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55 // %%% there can be 32-bit overflow here |
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56 return ((*b)->invocation_count() + (*b)->compiled_invocation_count()) |
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57 - ((*a)->invocation_count() + (*a)->compiled_invocation_count()); |
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58 } |
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59 |
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60 |
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61 void print_method_invocation_histogram() { |
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62 ResourceMark rm; |
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63 HandleMark hm; |
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64 collected_invoked_methods = new GrowableArray<methodOop>(1024); |
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65 SystemDictionary::methods_do(collect_invoked_methods); |
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66 collected_invoked_methods->sort(&compare_methods); |
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67 // |
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68 tty->cr(); |
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69 tty->print_cr("Histogram Over MethodOop Invocation Counters (cutoff = %d):", MethodHistogramCutoff); |
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70 tty->cr(); |
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71 tty->print_cr("____Count_(I+C)____Method________________________Module_________________"); |
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72 unsigned total = 0, int_total = 0, comp_total = 0, static_total = 0, final_total = 0, |
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73 synch_total = 0, nativ_total = 0, acces_total = 0; |
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74 for (int index = 0; index < collected_invoked_methods->length(); index++) { |
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75 methodOop m = collected_invoked_methods->at(index); |
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76 int c = m->invocation_count() + m->compiled_invocation_count(); |
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77 if (c >= MethodHistogramCutoff) m->print_invocation_count(); |
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78 int_total += m->invocation_count(); |
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79 comp_total += m->compiled_invocation_count(); |
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80 if (m->is_final()) final_total += c; |
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81 if (m->is_static()) static_total += c; |
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82 if (m->is_synchronized()) synch_total += c; |
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83 if (m->is_native()) nativ_total += c; |
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84 if (m->is_accessor()) acces_total += c; |
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85 } |
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86 tty->cr(); |
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87 total = int_total + comp_total; |
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88 tty->print_cr("Invocations summary:"); |
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89 tty->print_cr("\t%9d (%4.1f%%) interpreted", int_total, 100.0 * int_total / total); |
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90 tty->print_cr("\t%9d (%4.1f%%) compiled", comp_total, 100.0 * comp_total / total); |
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91 tty->print_cr("\t%9d (100%%) total", total); |
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92 tty->print_cr("\t%9d (%4.1f%%) synchronized", synch_total, 100.0 * synch_total / total); |
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93 tty->print_cr("\t%9d (%4.1f%%) final", final_total, 100.0 * final_total / total); |
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94 tty->print_cr("\t%9d (%4.1f%%) static", static_total, 100.0 * static_total / total); |
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95 tty->print_cr("\t%9d (%4.1f%%) native", nativ_total, 100.0 * nativ_total / total); |
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96 tty->print_cr("\t%9d (%4.1f%%) accessor", acces_total, 100.0 * acces_total / total); |
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97 tty->cr(); |
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98 SharedRuntime::print_call_statistics(comp_total); |
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99 } |
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100 |
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101 void print_method_profiling_data() { |
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102 ResourceMark rm; |
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103 HandleMark hm; |
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104 collected_profiled_methods = new GrowableArray<methodOop>(1024); |
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105 SystemDictionary::methods_do(collect_profiled_methods); |
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106 collected_profiled_methods->sort(&compare_methods); |
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107 |
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108 int count = collected_profiled_methods->length(); |
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109 if (count > 0) { |
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110 for (int index = 0; index < count; index++) { |
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111 methodOop m = collected_profiled_methods->at(index); |
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112 ttyLocker ttyl; |
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113 tty->print_cr("------------------------------------------------------------------------"); |
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114 //m->print_name(tty); |
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115 m->print_invocation_count(); |
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116 tty->cr(); |
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117 m->print_codes(); |
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118 } |
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119 tty->print_cr("------------------------------------------------------------------------"); |
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120 } |
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121 } |
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122 |
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123 void print_bytecode_count() { |
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124 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) { |
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125 tty->print_cr("[BytecodeCounter::counter_value = %d]", BytecodeCounter::counter_value()); |
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126 } |
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127 } |
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128 |
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129 AllocStats alloc_stats; |
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130 |
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131 |
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132 |
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133 // General statistics printing (profiling ...) |
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134 |
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135 void print_statistics() { |
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136 |
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137 #ifdef ASSERT |
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138 |
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139 if (CountRuntimeCalls) { |
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140 extern Histogram *RuntimeHistogram; |
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141 RuntimeHistogram->print(); |
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142 } |
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143 |
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144 if (CountJNICalls) { |
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145 extern Histogram *JNIHistogram; |
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146 JNIHistogram->print(); |
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147 } |
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148 |
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149 if (CountJVMCalls) { |
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150 extern Histogram *JVMHistogram; |
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151 JVMHistogram->print(); |
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152 } |
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153 |
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154 #endif |
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155 |
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156 if (MemProfiling) { |
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157 MemProfiler::disengage(); |
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158 } |
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159 |
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160 if (CITime) { |
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161 CompileBroker::print_times(); |
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162 } |
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163 |
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164 #ifdef COMPILER1 |
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165 if ((PrintC1Statistics || LogVMOutput || LogCompilation) && UseCompiler) { |
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166 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintC1Statistics); |
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167 Runtime1::print_statistics(); |
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168 Deoptimization::print_statistics(); |
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169 nmethod::print_statistics(); |
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170 } |
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171 #endif /* COMPILER1 */ |
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172 |
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173 #ifdef COMPILER2 |
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174 if ((PrintOptoStatistics || LogVMOutput || LogCompilation) && UseCompiler) { |
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175 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintOptoStatistics); |
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176 Compile::print_statistics(); |
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177 #ifndef COMPILER1 |
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178 Deoptimization::print_statistics(); |
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179 nmethod::print_statistics(); |
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180 #endif //COMPILER1 |
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181 SharedRuntime::print_statistics(); |
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182 os::print_statistics(); |
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183 } |
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184 |
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185 if (PrintLockStatistics || PrintPreciseBiasedLockingStatistics) { |
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186 OptoRuntime::print_named_counters(); |
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187 } |
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188 |
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189 if (TimeLivenessAnalysis) { |
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190 MethodLiveness::print_times(); |
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191 } |
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192 #ifdef ASSERT |
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193 if (CollectIndexSetStatistics) { |
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194 IndexSet::print_statistics(); |
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195 } |
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196 #endif // ASSERT |
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197 #endif // COMPILER2 |
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198 if (CountCompiledCalls) { |
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199 print_method_invocation_histogram(); |
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200 } |
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201 if (ProfileInterpreter || Tier1UpdateMethodData) { |
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202 print_method_profiling_data(); |
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203 } |
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204 if (TimeCompiler) { |
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205 COMPILER2_PRESENT(Compile::print_timers();) |
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206 } |
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207 if (TimeCompilationPolicy) { |
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208 CompilationPolicy::policy()->print_time(); |
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209 } |
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210 if (TimeOopMap) { |
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211 GenerateOopMap::print_time(); |
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212 } |
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213 if (ProfilerCheckIntervals) { |
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214 PeriodicTask::print_intervals(); |
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215 } |
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216 if (PrintSymbolTableSizeHistogram) { |
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217 SymbolTable::print_histogram(); |
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218 } |
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219 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) { |
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220 BytecodeCounter::print(); |
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221 } |
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222 if (PrintBytecodePairHistogram) { |
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223 BytecodePairHistogram::print(); |
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224 } |
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225 |
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226 if (PrintCodeCache) { |
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227 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
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228 CodeCache::print(); |
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229 } |
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230 |
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231 if (PrintCodeCache2) { |
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232 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
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233 CodeCache::print_internals(); |
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234 } |
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235 |
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236 if (PrintClassStatistics) { |
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237 SystemDictionary::print_class_statistics(); |
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238 } |
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239 if (PrintMethodStatistics) { |
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240 SystemDictionary::print_method_statistics(); |
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241 } |
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242 |
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243 if (PrintVtableStats) { |
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244 klassVtable::print_statistics(); |
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245 klassItable::print_statistics(); |
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246 } |
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247 if (VerifyOops) { |
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248 tty->print_cr("+VerifyOops count: %d", StubRoutines::verify_oop_count()); |
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249 } |
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250 |
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251 print_bytecode_count(); |
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252 if (WizardMode) { |
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253 tty->print("allocation stats: "); |
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254 alloc_stats.print(); |
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255 tty->cr(); |
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256 } |
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257 |
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258 if (PrintSystemDictionaryAtExit) { |
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259 SystemDictionary::print(); |
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260 } |
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261 |
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262 if (PrintBiasedLockingStatistics) { |
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263 BiasedLocking::print_counters(); |
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264 } |
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265 |
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266 #ifdef ENABLE_ZAP_DEAD_LOCALS |
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267 #ifdef COMPILER2 |
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268 if (ZapDeadCompiledLocals) { |
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269 tty->print_cr("Compile::CompiledZap_count = %d", Compile::CompiledZap_count); |
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270 tty->print_cr("OptoRuntime::ZapDeadCompiledLocals_count = %d", OptoRuntime::ZapDeadCompiledLocals_count); |
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271 } |
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272 #endif // COMPILER2 |
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273 #endif // ENABLE_ZAP_DEAD_LOCALS |
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274 } |
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275 |
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276 #else // PRODUCT MODE STATISTICS |
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277 |
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278 void print_statistics() { |
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279 |
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280 if (CITime) { |
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281 CompileBroker::print_times(); |
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282 } |
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283 #ifdef COMPILER2 |
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284 if (PrintPreciseBiasedLockingStatistics) { |
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285 OptoRuntime::print_named_counters(); |
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286 } |
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287 #endif |
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288 if (PrintBiasedLockingStatistics) { |
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289 BiasedLocking::print_counters(); |
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290 } |
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291 } |
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292 |
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293 #endif |
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294 |
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295 |
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296 // Helper class for registering on_exit calls through JVM_OnExit |
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297 |
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298 extern "C" { |
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299 typedef void (*__exit_proc)(void); |
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300 } |
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301 |
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302 class ExitProc : public CHeapObj { |
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303 private: |
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304 __exit_proc _proc; |
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305 // void (*_proc)(void); |
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306 ExitProc* _next; |
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307 public: |
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308 // ExitProc(void (*proc)(void)) { |
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309 ExitProc(__exit_proc proc) { |
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310 _proc = proc; |
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311 _next = NULL; |
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312 } |
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313 void evaluate() { _proc(); } |
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314 ExitProc* next() const { return _next; } |
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315 void set_next(ExitProc* next) { _next = next; } |
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316 }; |
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317 |
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318 |
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319 // Linked list of registered on_exit procedures |
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320 |
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321 static ExitProc* exit_procs = NULL; |
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322 |
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323 |
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324 extern "C" { |
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325 void register_on_exit_function(void (*func)(void)) { |
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326 ExitProc *entry = new ExitProc(func); |
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327 // Classic vm does not throw an exception in case the allocation failed, |
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328 if (entry != NULL) { |
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329 entry->set_next(exit_procs); |
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330 exit_procs = entry; |
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331 } |
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332 } |
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333 } |
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334 |
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335 // Note: before_exit() can be executed only once, if more than one threads |
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336 // are trying to shutdown the VM at the same time, only one thread |
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337 // can run before_exit() and all other threads must wait. |
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338 void before_exit(JavaThread * thread) { |
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339 #define BEFORE_EXIT_NOT_RUN 0 |
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340 #define BEFORE_EXIT_RUNNING 1 |
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341 #define BEFORE_EXIT_DONE 2 |
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342 static jint volatile _before_exit_status = BEFORE_EXIT_NOT_RUN; |
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343 |
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344 // Note: don't use a Mutex to guard the entire before_exit(), as |
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345 // JVMTI post_thread_end_event and post_vm_death_event will run native code. |
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346 // A CAS or OSMutex would work just fine but then we need to manipulate |
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347 // thread state for Safepoint. Here we use Monitor wait() and notify_all() |
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348 // for synchronization. |
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349 { MutexLocker ml(BeforeExit_lock); |
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350 switch (_before_exit_status) { |
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351 case BEFORE_EXIT_NOT_RUN: |
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352 _before_exit_status = BEFORE_EXIT_RUNNING; |
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353 break; |
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354 case BEFORE_EXIT_RUNNING: |
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355 while (_before_exit_status == BEFORE_EXIT_RUNNING) { |
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356 BeforeExit_lock->wait(); |
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357 } |
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358 assert(_before_exit_status == BEFORE_EXIT_DONE, "invalid state"); |
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359 return; |
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360 case BEFORE_EXIT_DONE: |
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361 return; |
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362 } |
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363 } |
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364 |
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365 // The only difference between this and Win32's _onexit procs is that |
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366 // this version is invoked before any threads get killed. |
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367 ExitProc* current = exit_procs; |
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368 while (current != NULL) { |
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369 ExitProc* next = current->next(); |
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370 current->evaluate(); |
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371 delete current; |
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372 current = next; |
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373 } |
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374 |
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375 // Hang forever on exit if we're reporting an error. |
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376 if (ShowMessageBoxOnError && is_error_reported()) { |
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377 os::infinite_sleep(); |
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378 } |
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379 |
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380 // Terminate watcher thread - must before disenrolling any periodic task |
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381 WatcherThread::stop(); |
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382 |
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383 // Print statistics gathered (profiling ...) |
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384 if (Arguments::has_profile()) { |
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385 FlatProfiler::disengage(); |
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386 FlatProfiler::print(10); |
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387 } |
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388 |
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389 // shut down the StatSampler task |
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390 StatSampler::disengage(); |
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391 StatSampler::destroy(); |
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392 |
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393 // shut down the TimeMillisUpdateTask |
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394 if (CacheTimeMillis) { |
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395 TimeMillisUpdateTask::disengage(); |
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396 } |
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397 |
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398 #ifndef SERIALGC |
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399 // stop CMS threads |
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400 if (UseConcMarkSweepGC) { |
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401 ConcurrentMarkSweepThread::stop(); |
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402 } |
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403 #endif // SERIALGC |
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404 |
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405 // Print GC/heap related information. |
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406 if (PrintGCDetails) { |
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407 Universe::print(); |
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408 AdaptiveSizePolicyOutput(0); |
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409 } |
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410 |
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411 |
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412 if (Arguments::has_alloc_profile()) { |
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413 HandleMark hm; |
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414 // Do one last collection to enumerate all the objects |
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415 // allocated since the last one. |
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416 Universe::heap()->collect(GCCause::_allocation_profiler); |
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417 AllocationProfiler::disengage(); |
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418 AllocationProfiler::print(0); |
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419 } |
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420 |
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421 if (PrintBytecodeHistogram) { |
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422 BytecodeHistogram::print(); |
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423 } |
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424 |
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425 if (JvmtiExport::should_post_thread_life()) { |
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426 JvmtiExport::post_thread_end(thread); |
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427 } |
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428 // Always call even when there are not JVMTI environments yet, since environments |
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429 // may be attached late and JVMTI must track phases of VM execution |
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430 JvmtiExport::post_vm_death(); |
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431 Threads::shutdown_vm_agents(); |
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432 |
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433 // Terminate the signal thread |
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434 // Note: we don't wait until it actually dies. |
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435 os::terminate_signal_thread(); |
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436 |
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437 print_statistics(); |
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438 Universe::heap()->print_tracing_info(); |
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439 |
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440 VTune::exit(); |
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441 |
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442 { MutexLocker ml(BeforeExit_lock); |
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443 _before_exit_status = BEFORE_EXIT_DONE; |
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444 BeforeExit_lock->notify_all(); |
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445 } |
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446 |
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447 #undef BEFORE_EXIT_NOT_RUN |
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448 #undef BEFORE_EXIT_RUNNING |
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449 #undef BEFORE_EXIT_DONE |
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450 } |
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451 |
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452 void vm_exit(int code) { |
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453 Thread* thread = ThreadLocalStorage::thread_index() == -1 ? NULL |
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454 : ThreadLocalStorage::get_thread_slow(); |
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455 if (thread == NULL) { |
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456 // we have serious problems -- just exit |
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457 vm_direct_exit(code); |
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458 } |
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459 |
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460 if (VMThread::vm_thread() != NULL) { |
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461 // Fire off a VM_Exit operation to bring VM to a safepoint and exit |
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462 VM_Exit op(code); |
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463 if (thread->is_Java_thread()) |
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464 ((JavaThread*)thread)->set_thread_state(_thread_in_vm); |
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465 VMThread::execute(&op); |
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466 // should never reach here; but in case something wrong with VM Thread. |
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467 vm_direct_exit(code); |
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468 } else { |
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469 // VM thread is gone, just exit |
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470 vm_direct_exit(code); |
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471 } |
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472 ShouldNotReachHere(); |
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473 } |
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474 |
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475 void notify_vm_shutdown() { |
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476 // For now, just a dtrace probe. |
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477 HS_DTRACE_PROBE(hotspot, vm__shutdown); |
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478 } |
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479 |
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480 void vm_direct_exit(int code) { |
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481 notify_vm_shutdown(); |
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482 ::exit(code); |
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483 } |
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484 |
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485 void vm_perform_shutdown_actions() { |
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486 // Warning: do not call 'exit_globals()' here. All threads are still running. |
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487 // Calling 'exit_globals()' will disable thread-local-storage and cause all |
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488 // kinds of assertions to trigger in debug mode. |
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489 if (is_init_completed()) { |
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490 Thread* thread = Thread::current(); |
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491 if (thread->is_Java_thread()) { |
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492 // We are leaving the VM, set state to native (in case any OS exit |
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493 // handlers call back to the VM) |
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494 JavaThread* jt = (JavaThread*)thread; |
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495 // Must always be walkable or have no last_Java_frame when in |
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496 // thread_in_native |
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497 jt->frame_anchor()->make_walkable(jt); |
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498 jt->set_thread_state(_thread_in_native); |
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499 } |
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500 } |
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501 notify_vm_shutdown(); |
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502 } |
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503 |
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504 void vm_shutdown() |
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505 { |
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506 vm_perform_shutdown_actions(); |
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507 os::shutdown(); |
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508 } |
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509 |
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510 void vm_abort() { |
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511 vm_perform_shutdown_actions(); |
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512 os::abort(PRODUCT_ONLY(false)); |
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513 ShouldNotReachHere(); |
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514 } |
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515 |
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516 void vm_notify_during_shutdown(const char* error, const char* message) { |
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517 if (error != NULL) { |
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518 tty->print_cr("Error occurred during initialization of VM"); |
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519 tty->print("%s", error); |
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520 if (message != NULL) { |
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521 tty->print_cr(": %s", message); |
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522 } |
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523 else { |
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524 tty->cr(); |
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525 } |
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526 } |
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527 if (ShowMessageBoxOnError && WizardMode) { |
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528 fatal("Error occurred during initialization of VM"); |
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529 } |
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530 } |
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531 |
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532 void vm_exit_during_initialization(Handle exception) { |
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533 tty->print_cr("Error occurred during initialization of VM"); |
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534 // If there are exceptions on this thread it must be cleared |
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535 // first and here. Any future calls to EXCEPTION_MARK requires |
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536 // that no pending exceptions exist. |
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537 Thread *THREAD = Thread::current(); |
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538 if (HAS_PENDING_EXCEPTION) { |
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539 CLEAR_PENDING_EXCEPTION; |
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540 } |
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541 java_lang_Throwable::print(exception, tty); |
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542 tty->cr(); |
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543 java_lang_Throwable::print_stack_trace(exception(), tty); |
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544 tty->cr(); |
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545 vm_notify_during_shutdown(NULL, NULL); |
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546 vm_abort(); |
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547 } |
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548 |
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549 void vm_exit_during_initialization(symbolHandle ex, const char* message) { |
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550 ResourceMark rm; |
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551 vm_notify_during_shutdown(ex->as_C_string(), message); |
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552 vm_abort(); |
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553 } |
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554 |
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555 void vm_exit_during_initialization(const char* error, const char* message) { |
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556 vm_notify_during_shutdown(error, message); |
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557 vm_abort(); |
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558 } |
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559 |
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560 void vm_shutdown_during_initialization(const char* error, const char* message) { |
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561 vm_notify_during_shutdown(error, message); |
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562 vm_shutdown(); |
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563 } |
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564 |
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565 jdk_version_info JDK_Version::_version_info = {0}; |
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566 bool JDK_Version::_pre_jdk16_version = false; |
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567 int JDK_Version::_jdk_version = 0; |
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568 |
|
569 void JDK_Version::initialize() { |
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570 void *lib_handle = os::native_java_library(); |
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571 jdk_version_info_fn_t func = |
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572 CAST_TO_FN_PTR(jdk_version_info_fn_t, hpi::dll_lookup(lib_handle, "JDK_GetVersionInfo0")); |
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573 |
|
574 if (func == NULL) { |
|
575 // JDK older than 1.6 |
|
576 _pre_jdk16_version = true; |
|
577 return; |
|
578 } |
|
579 |
|
580 if (func != NULL) { |
|
581 (*func)(&_version_info, sizeof(_version_info)); |
|
582 } |
|
583 if (jdk_major_version() == 1) { |
|
584 _jdk_version = jdk_minor_version(); |
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585 } else { |
|
586 // If the release version string is changed to n.x.x (e.g. 7.0.0) in a future release |
|
587 _jdk_version = jdk_major_version(); |
|
588 } |
|
589 } |
|
590 |
|
591 void JDK_Version_init() { |
|
592 JDK_Version::initialize(); |
|
593 } |