0
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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 #ifndef SERIALGC
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394 // stop CMS threads
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395 if (UseConcMarkSweepGC) {
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396 ConcurrentMarkSweepThread::stop();
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397 }
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398 #endif // SERIALGC
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399
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400 // Print GC/heap related information.
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401 if (PrintGCDetails) {
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402 Universe::print();
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403 AdaptiveSizePolicyOutput(0);
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404 }
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405
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406
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407 if (Arguments::has_alloc_profile()) {
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408 HandleMark hm;
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409 // Do one last collection to enumerate all the objects
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410 // allocated since the last one.
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411 Universe::heap()->collect(GCCause::_allocation_profiler);
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412 AllocationProfiler::disengage();
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413 AllocationProfiler::print(0);
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414 }
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415
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416 if (PrintBytecodeHistogram) {
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417 BytecodeHistogram::print();
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418 }
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419
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420 if (JvmtiExport::should_post_thread_life()) {
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421 JvmtiExport::post_thread_end(thread);
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422 }
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423 // Always call even when there are not JVMTI environments yet, since environments
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424 // may be attached late and JVMTI must track phases of VM execution
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425 JvmtiExport::post_vm_death();
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426 Threads::shutdown_vm_agents();
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427
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428 // Terminate the signal thread
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429 // Note: we don't wait until it actually dies.
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430 os::terminate_signal_thread();
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431
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432 print_statistics();
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433 Universe::heap()->print_tracing_info();
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434
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435 VTune::exit();
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436
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437 { MutexLocker ml(BeforeExit_lock);
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438 _before_exit_status = BEFORE_EXIT_DONE;
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439 BeforeExit_lock->notify_all();
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440 }
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441
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442 #undef BEFORE_EXIT_NOT_RUN
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443 #undef BEFORE_EXIT_RUNNING
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444 #undef BEFORE_EXIT_DONE
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445 }
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446
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447 void vm_exit(int code) {
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448 Thread* thread = ThreadLocalStorage::thread_index() == -1 ? NULL
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449 : ThreadLocalStorage::get_thread_slow();
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450 if (thread == NULL) {
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451 // we have serious problems -- just exit
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452 vm_direct_exit(code);
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453 }
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454
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455 if (VMThread::vm_thread() != NULL) {
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456 // Fire off a VM_Exit operation to bring VM to a safepoint and exit
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457 VM_Exit op(code);
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458 if (thread->is_Java_thread())
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459 ((JavaThread*)thread)->set_thread_state(_thread_in_vm);
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460 VMThread::execute(&op);
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461 // should never reach here; but in case something wrong with VM Thread.
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462 vm_direct_exit(code);
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463 } else {
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464 // VM thread is gone, just exit
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465 vm_direct_exit(code);
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466 }
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467 ShouldNotReachHere();
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468 }
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469
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470 void notify_vm_shutdown() {
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471 // For now, just a dtrace probe.
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472 HS_DTRACE_PROBE(hotspot, vm__shutdown);
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473 }
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474
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475 void vm_direct_exit(int code) {
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476 notify_vm_shutdown();
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477 ::exit(code);
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478 }
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479
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480 void vm_perform_shutdown_actions() {
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481 // Warning: do not call 'exit_globals()' here. All threads are still running.
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482 // Calling 'exit_globals()' will disable thread-local-storage and cause all
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483 // kinds of assertions to trigger in debug mode.
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484 if (is_init_completed()) {
|
|
485 Thread* thread = Thread::current();
|
|
486 if (thread->is_Java_thread()) {
|
|
487 // We are leaving the VM, set state to native (in case any OS exit
|
|
488 // handlers call back to the VM)
|
|
489 JavaThread* jt = (JavaThread*)thread;
|
|
490 // Must always be walkable or have no last_Java_frame when in
|
|
491 // thread_in_native
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|
492 jt->frame_anchor()->make_walkable(jt);
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|
493 jt->set_thread_state(_thread_in_native);
|
|
494 }
|
|
495 }
|
|
496 notify_vm_shutdown();
|
|
497 }
|
|
498
|
|
499 void vm_shutdown()
|
|
500 {
|
|
501 vm_perform_shutdown_actions();
|
|
502 os::shutdown();
|
|
503 }
|
|
504
|
|
505 void vm_abort() {
|
|
506 vm_perform_shutdown_actions();
|
|
507 os::abort(PRODUCT_ONLY(false));
|
|
508 ShouldNotReachHere();
|
|
509 }
|
|
510
|
|
511 void vm_notify_during_shutdown(const char* error, const char* message) {
|
|
512 if (error != NULL) {
|
|
513 tty->print_cr("Error occurred during initialization of VM");
|
|
514 tty->print("%s", error);
|
|
515 if (message != NULL) {
|
|
516 tty->print_cr(": %s", message);
|
|
517 }
|
|
518 else {
|
|
519 tty->cr();
|
|
520 }
|
|
521 }
|
|
522 if (ShowMessageBoxOnError && WizardMode) {
|
|
523 fatal("Error occurred during initialization of VM");
|
|
524 }
|
|
525 }
|
|
526
|
|
527 void vm_exit_during_initialization(Handle exception) {
|
|
528 tty->print_cr("Error occurred during initialization of VM");
|
|
529 // If there are exceptions on this thread it must be cleared
|
|
530 // first and here. Any future calls to EXCEPTION_MARK requires
|
|
531 // that no pending exceptions exist.
|
|
532 Thread *THREAD = Thread::current();
|
|
533 if (HAS_PENDING_EXCEPTION) {
|
|
534 CLEAR_PENDING_EXCEPTION;
|
|
535 }
|
|
536 java_lang_Throwable::print(exception, tty);
|
|
537 tty->cr();
|
|
538 java_lang_Throwable::print_stack_trace(exception(), tty);
|
|
539 tty->cr();
|
|
540 vm_notify_during_shutdown(NULL, NULL);
|
|
541 vm_abort();
|
|
542 }
|
|
543
|
|
544 void vm_exit_during_initialization(symbolHandle ex, const char* message) {
|
|
545 ResourceMark rm;
|
|
546 vm_notify_during_shutdown(ex->as_C_string(), message);
|
|
547 vm_abort();
|
|
548 }
|
|
549
|
|
550 void vm_exit_during_initialization(const char* error, const char* message) {
|
|
551 vm_notify_during_shutdown(error, message);
|
|
552 vm_abort();
|
|
553 }
|
|
554
|
|
555 void vm_shutdown_during_initialization(const char* error, const char* message) {
|
|
556 vm_notify_during_shutdown(error, message);
|
|
557 vm_shutdown();
|
|
558 }
|
|
559
|
|
560 jdk_version_info JDK_Version::_version_info = {0};
|
|
561 bool JDK_Version::_pre_jdk16_version = false;
|
|
562 int JDK_Version::_jdk_version = 0;
|
|
563
|
|
564 void JDK_Version::initialize() {
|
|
565 void *lib_handle = os::native_java_library();
|
|
566 jdk_version_info_fn_t func =
|
|
567 CAST_TO_FN_PTR(jdk_version_info_fn_t, hpi::dll_lookup(lib_handle, "JDK_GetVersionInfo0"));
|
|
568
|
|
569 if (func == NULL) {
|
|
570 // JDK older than 1.6
|
|
571 _pre_jdk16_version = true;
|
|
572 return;
|
|
573 }
|
|
574
|
|
575 if (func != NULL) {
|
|
576 (*func)(&_version_info, sizeof(_version_info));
|
|
577 }
|
|
578 if (jdk_major_version() == 1) {
|
|
579 _jdk_version = jdk_minor_version();
|
|
580 } else {
|
|
581 // If the release version string is changed to n.x.x (e.g. 7.0.0) in a future release
|
|
582 _jdk_version = jdk_major_version();
|
|
583 }
|
|
584 }
|
|
585
|
|
586 void JDK_Version_init() {
|
|
587 JDK_Version::initialize();
|
|
588 }
|