Mercurial > hg > truffle
annotate src/share/vm/runtime/java.cpp @ 17234:fd0f5f9abb79
Merge.
author | Doug Simon <doug.simon@oracle.com> |
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date | Fri, 26 Sep 2014 18:11:18 +0200 |
parents | 4481cf549cfc |
children | 52b4284cb496 |
rev | line source |
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0 | 1 /* |
10405 | 2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "classfile/classLoader.hpp" | |
27 #include "classfile/symbolTable.hpp" | |
28 #include "classfile/systemDictionary.hpp" | |
29 #include "code/codeCache.hpp" | |
30 #include "compiler/compileBroker.hpp" | |
31 #include "compiler/compilerOracle.hpp" | |
32 #include "interpreter/bytecodeHistogram.hpp" | |
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33 #ifdef GRAAL |
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34 #include "graal/graalCompiler.hpp" |
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35 #include "graal/graalRuntime.hpp" |
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36 #endif |
1972 | 37 #include "memory/genCollectedHeap.hpp" |
38 #include "memory/oopFactory.hpp" | |
39 #include "memory/universe.hpp" | |
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40 #include "oops/constantPool.hpp" |
1972 | 41 #include "oops/generateOopMap.hpp" |
42 #include "oops/instanceKlass.hpp" | |
43 #include "oops/instanceOop.hpp" | |
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44 #include "oops/method.hpp" |
1972 | 45 #include "oops/objArrayOop.hpp" |
46 #include "oops/oop.inline.hpp" | |
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47 #include "oops/symbol.hpp" |
1972 | 48 #include "prims/jvmtiExport.hpp" |
49 #include "runtime/arguments.hpp" | |
50 #include "runtime/biasedLocking.hpp" | |
51 #include "runtime/compilationPolicy.hpp" | |
52 #include "runtime/fprofiler.hpp" | |
53 #include "runtime/init.hpp" | |
54 #include "runtime/interfaceSupport.hpp" | |
55 #include "runtime/java.hpp" | |
56 #include "runtime/memprofiler.hpp" | |
57 #include "runtime/sharedRuntime.hpp" | |
58 #include "runtime/statSampler.hpp" | |
59 #include "runtime/task.hpp" | |
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60 #include "runtime/thread.inline.hpp" |
1972 | 61 #include "runtime/timer.hpp" |
62 #include "runtime/vm_operations.hpp" | |
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63 #include "services/memReporter.hpp" |
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64 #include "services/memTracker.hpp" |
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65 #include "trace/tracing.hpp" |
1972 | 66 #include "utilities/dtrace.hpp" |
67 #include "utilities/globalDefinitions.hpp" | |
68 #include "utilities/histogram.hpp" | |
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69 #include "utilities/macros.hpp" |
1972 | 70 #include "utilities/vmError.hpp" |
71 #ifdef TARGET_ARCH_x86 | |
72 # include "vm_version_x86.hpp" | |
73 #endif | |
74 #ifdef TARGET_ARCH_sparc | |
75 # include "vm_version_sparc.hpp" | |
76 #endif | |
77 #ifdef TARGET_ARCH_zero | |
78 # include "vm_version_zero.hpp" | |
79 #endif | |
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80 #ifdef TARGET_ARCH_arm |
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81 # include "vm_version_arm.hpp" |
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82 #endif |
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83 #ifdef TARGET_ARCH_ppc |
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84 # include "vm_version_ppc.hpp" |
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85 #endif |
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86 #if INCLUDE_ALL_GCS |
1972 | 87 #include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepThread.hpp" |
88 #include "gc_implementation/parallelScavenge/psScavenge.hpp" | |
89 #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp" | |
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90 #endif // INCLUDE_ALL_GCS |
1972 | 91 #ifdef COMPILER1 |
92 #include "c1/c1_Compiler.hpp" | |
93 #include "c1/c1_Runtime1.hpp" | |
94 #endif | |
95 #ifdef COMPILER2 | |
96 #include "code/compiledIC.hpp" | |
97 #include "compiler/methodLiveness.hpp" | |
98 #include "opto/compile.hpp" | |
99 #include "opto/indexSet.hpp" | |
100 #include "opto/runtime.hpp" | |
101 #endif | |
0 | 102 |
14909 | 103 #ifndef USDT2 |
104 HS_DTRACE_PROBE_DECL(hotspot, vm__shutdown); | |
105 #endif /* !USDT2 */ | |
0 | 106 |
107 #ifndef PRODUCT | |
108 | |
109 // Statistics printing (method invocation histogram) | |
110 | |
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111 GrowableArray<Method*>* collected_invoked_methods; |
0 | 112 |
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113 void collect_invoked_methods(Method* m) { |
0 | 114 if (m->invocation_count() + m->compiled_invocation_count() >= 1 ) { |
115 collected_invoked_methods->push(m); | |
116 } | |
117 } | |
118 | |
119 | |
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120 GrowableArray<Method*>* collected_profiled_methods; |
0 | 121 |
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122 void collect_profiled_methods(Method* m) { |
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123 Thread* thread = Thread::current(); |
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124 // This HandleMark prevents a huge amount of handles from being added |
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125 // to the metadata_handles() array on the thread. |
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126 HandleMark hm(thread); |
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127 methodHandle mh(thread, m); |
0 | 128 if ((m->method_data() != NULL) && |
129 (PrintMethodData || CompilerOracle::should_print(mh))) { | |
130 collected_profiled_methods->push(m); | |
131 } | |
132 } | |
133 | |
134 | |
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135 int compare_methods(Method** a, Method** b) { |
0 | 136 // %%% there can be 32-bit overflow here |
137 return ((*b)->invocation_count() + (*b)->compiled_invocation_count()) | |
138 - ((*a)->invocation_count() + (*a)->compiled_invocation_count()); | |
139 } | |
140 | |
141 | |
142 void print_method_invocation_histogram() { | |
143 ResourceMark rm; | |
144 HandleMark hm; | |
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145 collected_invoked_methods = new GrowableArray<Method*>(1024); |
0 | 146 SystemDictionary::methods_do(collect_invoked_methods); |
147 collected_invoked_methods->sort(&compare_methods); | |
148 // | |
149 tty->cr(); | |
150 tty->print_cr("Histogram Over MethodOop Invocation Counters (cutoff = %d):", MethodHistogramCutoff); | |
151 tty->cr(); | |
152 tty->print_cr("____Count_(I+C)____Method________________________Module_________________"); | |
153 unsigned total = 0, int_total = 0, comp_total = 0, static_total = 0, final_total = 0, | |
154 synch_total = 0, nativ_total = 0, acces_total = 0; | |
155 for (int index = 0; index < collected_invoked_methods->length(); index++) { | |
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156 Method* m = collected_invoked_methods->at(index); |
0 | 157 int c = m->invocation_count() + m->compiled_invocation_count(); |
158 if (c >= MethodHistogramCutoff) m->print_invocation_count(); | |
159 int_total += m->invocation_count(); | |
160 comp_total += m->compiled_invocation_count(); | |
161 if (m->is_final()) final_total += c; | |
162 if (m->is_static()) static_total += c; | |
163 if (m->is_synchronized()) synch_total += c; | |
164 if (m->is_native()) nativ_total += c; | |
165 if (m->is_accessor()) acces_total += c; | |
166 } | |
167 tty->cr(); | |
168 total = int_total + comp_total; | |
169 tty->print_cr("Invocations summary:"); | |
170 tty->print_cr("\t%9d (%4.1f%%) interpreted", int_total, 100.0 * int_total / total); | |
171 tty->print_cr("\t%9d (%4.1f%%) compiled", comp_total, 100.0 * comp_total / total); | |
172 tty->print_cr("\t%9d (100%%) total", total); | |
173 tty->print_cr("\t%9d (%4.1f%%) synchronized", synch_total, 100.0 * synch_total / total); | |
174 tty->print_cr("\t%9d (%4.1f%%) final", final_total, 100.0 * final_total / total); | |
175 tty->print_cr("\t%9d (%4.1f%%) static", static_total, 100.0 * static_total / total); | |
176 tty->print_cr("\t%9d (%4.1f%%) native", nativ_total, 100.0 * nativ_total / total); | |
177 tty->print_cr("\t%9d (%4.1f%%) accessor", acces_total, 100.0 * acces_total / total); | |
178 tty->cr(); | |
179 SharedRuntime::print_call_statistics(comp_total); | |
180 } | |
181 | |
182 void print_method_profiling_data() { | |
183 ResourceMark rm; | |
184 HandleMark hm; | |
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185 collected_profiled_methods = new GrowableArray<Method*>(1024); |
0 | 186 SystemDictionary::methods_do(collect_profiled_methods); |
187 collected_profiled_methods->sort(&compare_methods); | |
188 | |
189 int count = collected_profiled_methods->length(); | |
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190 int total_size = 0; |
0 | 191 if (count > 0) { |
192 for (int index = 0; index < count; index++) { | |
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193 Method* m = collected_profiled_methods->at(index); |
0 | 194 ttyLocker ttyl; |
195 tty->print_cr("------------------------------------------------------------------------"); | |
196 //m->print_name(tty); | |
197 m->print_invocation_count(); | |
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198 tty->print_cr(" mdo size: %d bytes", m->method_data()->size_in_bytes()); |
0 | 199 tty->cr(); |
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200 // Dump data on parameters if any |
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201 if (m->method_data() != NULL && m->method_data()->parameters_type_data() != NULL) { |
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202 tty->fill_to(2); |
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203 m->method_data()->parameters_type_data()->print_data_on(tty); |
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204 } |
0 | 205 m->print_codes(); |
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206 total_size += m->method_data()->size_in_bytes(); |
0 | 207 } |
208 tty->print_cr("------------------------------------------------------------------------"); | |
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209 tty->print_cr("Total MDO size: %d bytes", total_size); |
0 | 210 } |
211 } | |
212 | |
213 void print_bytecode_count() { | |
214 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) { | |
215 tty->print_cr("[BytecodeCounter::counter_value = %d]", BytecodeCounter::counter_value()); | |
216 } | |
217 } | |
218 | |
219 AllocStats alloc_stats; | |
220 | |
221 | |
222 | |
223 // General statistics printing (profiling ...) | |
14909 | 224 |
0 | 225 void print_statistics() { |
14909 | 226 |
0 | 227 #ifdef ASSERT |
228 | |
229 if (CountRuntimeCalls) { | |
230 extern Histogram *RuntimeHistogram; | |
231 RuntimeHistogram->print(); | |
232 } | |
233 | |
234 if (CountJNICalls) { | |
235 extern Histogram *JNIHistogram; | |
236 JNIHistogram->print(); | |
237 } | |
238 | |
239 if (CountJVMCalls) { | |
240 extern Histogram *JVMHistogram; | |
241 JVMHistogram->print(); | |
242 } | |
243 | |
244 #endif | |
245 | |
246 if (MemProfiling) { | |
247 MemProfiler::disengage(); | |
248 } | |
249 | |
250 if (CITime) { | |
251 CompileBroker::print_times(); | |
252 } | |
253 | |
254 #ifdef COMPILER1 | |
255 if ((PrintC1Statistics || LogVMOutput || LogCompilation) && UseCompiler) { | |
256 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintC1Statistics); | |
257 Runtime1::print_statistics(); | |
258 Deoptimization::print_statistics(); | |
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259 SharedRuntime::print_statistics(); |
0 | 260 } |
261 #endif /* COMPILER1 */ | |
262 | |
263 #ifdef COMPILER2 | |
264 if ((PrintOptoStatistics || LogVMOutput || LogCompilation) && UseCompiler) { | |
265 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintOptoStatistics); | |
266 Compile::print_statistics(); | |
267 #ifndef COMPILER1 | |
268 Deoptimization::print_statistics(); | |
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269 SharedRuntime::print_statistics(); |
0 | 270 #endif //COMPILER1 |
271 os::print_statistics(); | |
272 } | |
273 | |
274 if (PrintLockStatistics || PrintPreciseBiasedLockingStatistics) { | |
275 OptoRuntime::print_named_counters(); | |
276 } | |
277 | |
278 if (TimeLivenessAnalysis) { | |
279 MethodLiveness::print_times(); | |
280 } | |
281 #ifdef ASSERT | |
282 if (CollectIndexSetStatistics) { | |
283 IndexSet::print_statistics(); | |
284 } | |
285 #endif // ASSERT | |
286 #endif // COMPILER2 | |
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287 |
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288 if (PrintNMethodStatistics) { |
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289 nmethod::print_statistics(); |
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290 } |
0 | 291 if (CountCompiledCalls) { |
292 print_method_invocation_histogram(); | |
293 } | |
1918 | 294 if (ProfileInterpreter COMPILER1_PRESENT(|| C1UpdateMethodData)) { |
0 | 295 print_method_profiling_data(); |
296 } | |
297 if (TimeCompiler) { | |
298 COMPILER2_PRESENT(Compile::print_timers();) | |
299 } | |
300 if (TimeCompilationPolicy) { | |
301 CompilationPolicy::policy()->print_time(); | |
302 } | |
303 if (TimeOopMap) { | |
304 GenerateOopMap::print_time(); | |
305 } | |
306 if (ProfilerCheckIntervals) { | |
307 PeriodicTask::print_intervals(); | |
308 } | |
309 if (PrintSymbolTableSizeHistogram) { | |
310 SymbolTable::print_histogram(); | |
311 } | |
312 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) { | |
313 BytecodeCounter::print(); | |
314 } | |
315 if (PrintBytecodePairHistogram) { | |
316 BytecodePairHistogram::print(); | |
317 } | |
318 | |
319 if (PrintCodeCache) { | |
320 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
321 CodeCache::print(); | |
322 } | |
323 | |
324 if (PrintCodeCache2) { | |
325 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
326 CodeCache::print_internals(); | |
327 } | |
328 | |
329 if (PrintClassStatistics) { | |
330 SystemDictionary::print_class_statistics(); | |
331 } | |
332 if (PrintMethodStatistics) { | |
333 SystemDictionary::print_method_statistics(); | |
334 } | |
335 | |
336 if (PrintVtableStats) { | |
337 klassVtable::print_statistics(); | |
338 klassItable::print_statistics(); | |
339 } | |
340 if (VerifyOops) { | |
341 tty->print_cr("+VerifyOops count: %d", StubRoutines::verify_oop_count()); | |
342 } | |
343 | |
344 print_bytecode_count(); | |
2250 | 345 if (PrintMallocStatistics) { |
0 | 346 tty->print("allocation stats: "); |
347 alloc_stats.print(); | |
348 tty->cr(); | |
349 } | |
350 | |
351 if (PrintSystemDictionaryAtExit) { | |
352 SystemDictionary::print(); | |
353 } | |
354 | |
355 if (PrintBiasedLockingStatistics) { | |
356 BiasedLocking::print_counters(); | |
357 } | |
358 | |
359 #ifdef ENABLE_ZAP_DEAD_LOCALS | |
360 #ifdef COMPILER2 | |
361 if (ZapDeadCompiledLocals) { | |
362 tty->print_cr("Compile::CompiledZap_count = %d", Compile::CompiledZap_count); | |
363 tty->print_cr("OptoRuntime::ZapDeadCompiledLocals_count = %d", OptoRuntime::ZapDeadCompiledLocals_count); | |
364 } | |
365 #endif // COMPILER2 | |
366 #endif // ENABLE_ZAP_DEAD_LOCALS | |
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367 // Native memory tracking data |
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368 if (PrintNMTStatistics) { |
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369 if (MemTracker::is_on()) { |
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370 BaselineTTYOutputer outputer(tty); |
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371 MemTracker::print_memory_usage(outputer, K, false); |
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372 } else { |
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373 tty->print_cr(MemTracker::reason()); |
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374 } |
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375 } |
0 | 376 } |
377 | |
378 #else // PRODUCT MODE STATISTICS | |
379 | |
380 void print_statistics() { | |
381 | |
382 if (CITime) { | |
383 CompileBroker::print_times(); | |
384 } | |
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385 |
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386 if (PrintCodeCache) { |
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387 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
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388 CodeCache::print(); |
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389 } |
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390 |
0 | 391 #ifdef COMPILER2 |
392 if (PrintPreciseBiasedLockingStatistics) { | |
393 OptoRuntime::print_named_counters(); | |
394 } | |
395 #endif | |
396 if (PrintBiasedLockingStatistics) { | |
397 BiasedLocking::print_counters(); | |
398 } | |
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399 if (PrintNMethodStatistics) { |
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400 nmethod::print_statistics(); |
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401 } |
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402 |
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403 // Native memory tracking data |
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404 if (PrintNMTStatistics) { |
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405 if (MemTracker::is_on()) { |
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406 BaselineTTYOutputer outputer(tty); |
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407 MemTracker::print_memory_usage(outputer, K, false); |
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408 } else { |
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409 tty->print_cr(MemTracker::reason()); |
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410 } |
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411 } |
0 | 412 } |
413 | |
414 #endif | |
415 | |
416 | |
417 // Helper class for registering on_exit calls through JVM_OnExit | |
418 | |
419 extern "C" { | |
420 typedef void (*__exit_proc)(void); | |
421 } | |
422 | |
6197 | 423 class ExitProc : public CHeapObj<mtInternal> { |
0 | 424 private: |
425 __exit_proc _proc; | |
426 // void (*_proc)(void); | |
427 ExitProc* _next; | |
428 public: | |
429 // ExitProc(void (*proc)(void)) { | |
430 ExitProc(__exit_proc proc) { | |
431 _proc = proc; | |
432 _next = NULL; | |
433 } | |
434 void evaluate() { _proc(); } | |
435 ExitProc* next() const { return _next; } | |
436 void set_next(ExitProc* next) { _next = next; } | |
437 }; | |
438 | |
439 | |
440 // Linked list of registered on_exit procedures | |
441 | |
442 static ExitProc* exit_procs = NULL; | |
443 | |
444 | |
445 extern "C" { | |
446 void register_on_exit_function(void (*func)(void)) { | |
447 ExitProc *entry = new ExitProc(func); | |
448 // Classic vm does not throw an exception in case the allocation failed, | |
449 if (entry != NULL) { | |
450 entry->set_next(exit_procs); | |
451 exit_procs = entry; | |
452 } | |
453 } | |
454 } | |
455 | |
456 // Note: before_exit() can be executed only once, if more than one threads | |
457 // are trying to shutdown the VM at the same time, only one thread | |
458 // can run before_exit() and all other threads must wait. | |
459 void before_exit(JavaThread * thread) { | |
460 #define BEFORE_EXIT_NOT_RUN 0 | |
461 #define BEFORE_EXIT_RUNNING 1 | |
462 #define BEFORE_EXIT_DONE 2 | |
463 static jint volatile _before_exit_status = BEFORE_EXIT_NOT_RUN; | |
464 | |
465 // Note: don't use a Mutex to guard the entire before_exit(), as | |
466 // JVMTI post_thread_end_event and post_vm_death_event will run native code. | |
467 // A CAS or OSMutex would work just fine but then we need to manipulate | |
468 // thread state for Safepoint. Here we use Monitor wait() and notify_all() | |
469 // for synchronization. | |
470 { MutexLocker ml(BeforeExit_lock); | |
471 switch (_before_exit_status) { | |
472 case BEFORE_EXIT_NOT_RUN: | |
473 _before_exit_status = BEFORE_EXIT_RUNNING; | |
474 break; | |
475 case BEFORE_EXIT_RUNNING: | |
476 while (_before_exit_status == BEFORE_EXIT_RUNNING) { | |
477 BeforeExit_lock->wait(); | |
478 } | |
479 assert(_before_exit_status == BEFORE_EXIT_DONE, "invalid state"); | |
480 return; | |
481 case BEFORE_EXIT_DONE: | |
482 return; | |
483 } | |
484 } | |
485 | |
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486 #ifdef GRAAL |
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487 GraalRuntime::shutdown(); |
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488 #endif |
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489 |
0 | 490 // The only difference between this and Win32's _onexit procs is that |
491 // this version is invoked before any threads get killed. | |
492 ExitProc* current = exit_procs; | |
493 while (current != NULL) { | |
494 ExitProc* next = current->next(); | |
495 current->evaluate(); | |
496 delete current; | |
497 current = next; | |
498 } | |
499 | |
500 // Hang forever on exit if we're reporting an error. | |
501 if (ShowMessageBoxOnError && is_error_reported()) { | |
502 os::infinite_sleep(); | |
503 } | |
504 | |
505 // Terminate watcher thread - must before disenrolling any periodic task | |
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506 if (PeriodicTask::num_tasks() > 0) |
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507 WatcherThread::stop(); |
0 | 508 |
509 // Print statistics gathered (profiling ...) | |
510 if (Arguments::has_profile()) { | |
511 FlatProfiler::disengage(); | |
512 FlatProfiler::print(10); | |
513 } | |
514 | |
515 // shut down the StatSampler task | |
516 StatSampler::disengage(); | |
517 StatSampler::destroy(); | |
518 | |
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519 // We do not need to explicitly stop concurrent GC threads because the |
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520 // JVM will be taken down at a safepoint when such threads are inactive -- |
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521 // except for some concurrent G1 threads, see (comment in) |
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522 // Threads::destroy_vm(). |
0 | 523 |
524 // Print GC/heap related information. | |
525 if (PrintGCDetails) { | |
526 Universe::print(); | |
527 AdaptiveSizePolicyOutput(0); | |
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528 if (Verbose) { |
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529 ClassLoaderDataGraph::dump_on(gclog_or_tty); |
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530 } |
0 | 531 } |
532 | |
533 if (PrintBytecodeHistogram) { | |
534 BytecodeHistogram::print(); | |
535 } | |
536 | |
537 if (JvmtiExport::should_post_thread_life()) { | |
538 JvmtiExport::post_thread_end(thread); | |
539 } | |
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540 |
10405 | 541 |
542 EventThreadEnd event; | |
543 if (event.should_commit()) { | |
544 event.set_javalangthread(java_lang_Thread::thread_id(thread->threadObj())); | |
545 event.commit(); | |
546 } | |
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547 |
0 | 548 // Always call even when there are not JVMTI environments yet, since environments |
549 // may be attached late and JVMTI must track phases of VM execution | |
550 JvmtiExport::post_vm_death(); | |
551 Threads::shutdown_vm_agents(); | |
552 | |
553 // Terminate the signal thread | |
554 // Note: we don't wait until it actually dies. | |
555 os::terminate_signal_thread(); | |
556 | |
557 print_statistics(); | |
558 Universe::heap()->print_tracing_info(); | |
559 | |
560 { MutexLocker ml(BeforeExit_lock); | |
561 _before_exit_status = BEFORE_EXIT_DONE; | |
562 BeforeExit_lock->notify_all(); | |
563 } | |
564 | |
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565 // Shutdown NMT before exit. Otherwise, |
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566 // it will run into trouble when system destroys static variables. |
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567 MemTracker::shutdown(MemTracker::NMT_normal); |
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568 |
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569 if (VerifyStringTableAtExit) { |
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570 int fail_cnt = 0; |
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571 { |
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572 MutexLocker ml(StringTable_lock); |
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573 fail_cnt = StringTable::verify_and_compare_entries(); |
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574 } |
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575 |
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576 if (fail_cnt != 0) { |
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577 tty->print_cr("ERROR: fail_cnt=%d", fail_cnt); |
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578 guarantee(fail_cnt == 0, "unexpected StringTable verification failures"); |
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579 } |
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580 } |
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581 |
0 | 582 #undef BEFORE_EXIT_NOT_RUN |
583 #undef BEFORE_EXIT_RUNNING | |
584 #undef BEFORE_EXIT_DONE | |
585 } | |
586 | |
587 void vm_exit(int code) { | |
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588 Thread* thread = ThreadLocalStorage::is_initialized() ? |
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589 ThreadLocalStorage::get_thread_slow() : NULL; |
0 | 590 if (thread == NULL) { |
591 // we have serious problems -- just exit | |
592 vm_direct_exit(code); | |
593 } | |
594 | |
595 if (VMThread::vm_thread() != NULL) { | |
596 // Fire off a VM_Exit operation to bring VM to a safepoint and exit | |
597 VM_Exit op(code); | |
598 if (thread->is_Java_thread()) | |
599 ((JavaThread*)thread)->set_thread_state(_thread_in_vm); | |
600 VMThread::execute(&op); | |
601 // should never reach here; but in case something wrong with VM Thread. | |
602 vm_direct_exit(code); | |
603 } else { | |
604 // VM thread is gone, just exit | |
605 vm_direct_exit(code); | |
606 } | |
607 ShouldNotReachHere(); | |
608 } | |
609 | |
610 void notify_vm_shutdown() { | |
611 // For now, just a dtrace probe. | |
14909 | 612 #ifndef USDT2 |
613 HS_DTRACE_PROBE(hotspot, vm__shutdown); | |
614 HS_DTRACE_WORKAROUND_TAIL_CALL_BUG(); | |
615 #else /* USDT2 */ | |
4006 | 616 HOTSPOT_VM_SHUTDOWN(); |
14909 | 617 #endif /* USDT2 */ |
0 | 618 } |
619 | |
620 void vm_direct_exit(int code) { | |
621 notify_vm_shutdown(); | |
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622 os::wait_for_keypress_at_exit(); |
0 | 623 ::exit(code); |
624 } | |
625 | |
626 void vm_perform_shutdown_actions() { | |
627 // Warning: do not call 'exit_globals()' here. All threads are still running. | |
628 // Calling 'exit_globals()' will disable thread-local-storage and cause all | |
629 // kinds of assertions to trigger in debug mode. | |
630 if (is_init_completed()) { | |
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631 Thread* thread = ThreadLocalStorage::is_initialized() ? |
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632 ThreadLocalStorage::get_thread_slow() : NULL; |
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633 if (thread != NULL && thread->is_Java_thread()) { |
0 | 634 // We are leaving the VM, set state to native (in case any OS exit |
635 // handlers call back to the VM) | |
636 JavaThread* jt = (JavaThread*)thread; | |
637 // Must always be walkable or have no last_Java_frame when in | |
638 // thread_in_native | |
639 jt->frame_anchor()->make_walkable(jt); | |
640 jt->set_thread_state(_thread_in_native); | |
641 } | |
642 } | |
643 notify_vm_shutdown(); | |
644 } | |
645 | |
646 void vm_shutdown() | |
647 { | |
648 vm_perform_shutdown_actions(); | |
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649 os::wait_for_keypress_at_exit(); |
0 | 650 os::shutdown(); |
651 } | |
652 | |
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653 void vm_abort(bool dump_core) { |
0 | 654 vm_perform_shutdown_actions(); |
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655 os::wait_for_keypress_at_exit(); |
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656 os::abort(dump_core); |
0 | 657 ShouldNotReachHere(); |
658 } | |
659 | |
660 void vm_notify_during_shutdown(const char* error, const char* message) { | |
661 if (error != NULL) { | |
662 tty->print_cr("Error occurred during initialization of VM"); | |
663 tty->print("%s", error); | |
664 if (message != NULL) { | |
665 tty->print_cr(": %s", message); | |
666 } | |
667 else { | |
668 tty->cr(); | |
669 } | |
670 } | |
671 if (ShowMessageBoxOnError && WizardMode) { | |
672 fatal("Error occurred during initialization of VM"); | |
673 } | |
674 } | |
675 | |
676 void vm_exit_during_initialization(Handle exception) { | |
677 tty->print_cr("Error occurred during initialization of VM"); | |
678 // If there are exceptions on this thread it must be cleared | |
679 // first and here. Any future calls to EXCEPTION_MARK requires | |
680 // that no pending exceptions exist. | |
681 Thread *THREAD = Thread::current(); | |
682 if (HAS_PENDING_EXCEPTION) { | |
683 CLEAR_PENDING_EXCEPTION; | |
684 } | |
685 java_lang_Throwable::print(exception, tty); | |
686 tty->cr(); | |
687 java_lang_Throwable::print_stack_trace(exception(), tty); | |
688 tty->cr(); | |
689 vm_notify_during_shutdown(NULL, NULL); | |
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690 |
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691 // Failure during initialization, we don't want to dump core |
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692 vm_abort(false); |
0 | 693 } |
694 | |
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695 void vm_exit_during_initialization(Symbol* ex, const char* message) { |
0 | 696 ResourceMark rm; |
697 vm_notify_during_shutdown(ex->as_C_string(), message); | |
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698 |
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699 // Failure during initialization, we don't want to dump core |
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700 vm_abort(false); |
0 | 701 } |
702 | |
703 void vm_exit_during_initialization(const char* error, const char* message) { | |
704 vm_notify_during_shutdown(error, message); | |
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705 |
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706 // Failure during initialization, we don't want to dump core |
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707 vm_abort(false); |
0 | 708 } |
709 | |
710 void vm_shutdown_during_initialization(const char* error, const char* message) { | |
711 vm_notify_during_shutdown(error, message); | |
712 vm_shutdown(); | |
713 } | |
714 | |
242 | 715 JDK_Version JDK_Version::_current; |
6181 | 716 const char* JDK_Version::_runtime_name; |
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717 const char* JDK_Version::_runtime_version; |
0 | 718 |
719 void JDK_Version::initialize() { | |
242 | 720 jdk_version_info info; |
721 assert(!_current.is_valid(), "Don't initialize twice"); | |
722 | |
0 | 723 void *lib_handle = os::native_java_library(); |
242 | 724 jdk_version_info_fn_t func = CAST_TO_FN_PTR(jdk_version_info_fn_t, |
725 os::dll_lookup(lib_handle, "JDK_GetVersionInfo0")); | |
0 | 726 |
727 if (func == NULL) { | |
728 // JDK older than 1.6 | |
242 | 729 _current._partially_initialized = true; |
730 } else { | |
731 (*func)(&info, sizeof(info)); | |
0 | 732 |
242 | 733 int major = JDK_VERSION_MAJOR(info.jdk_version); |
734 int minor = JDK_VERSION_MINOR(info.jdk_version); | |
735 int micro = JDK_VERSION_MICRO(info.jdk_version); | |
736 int build = JDK_VERSION_BUILD(info.jdk_version); | |
737 if (major == 1 && minor > 4) { | |
738 // We represent "1.5.0" as "5.0", but 1.4.2 as itself. | |
739 major = minor; | |
740 minor = micro; | |
741 micro = 0; | |
742 } | |
743 _current = JDK_Version(major, minor, micro, info.update_version, | |
744 info.special_update_version, build, | |
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745 info.thread_park_blocker == 1, |
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746 info.post_vm_init_hook_enabled == 1, |
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747 info.pending_list_uses_discovered_field == 1); |
0 | 748 } |
242 | 749 } |
750 | |
751 void JDK_Version::fully_initialize( | |
752 uint8_t major, uint8_t minor, uint8_t micro, uint8_t update) { | |
753 // This is only called when current is less than 1.6 and we've gotten | |
754 // far enough in the initialization to determine the exact version. | |
755 assert(major < 6, "not needed for JDK version >= 6"); | |
756 assert(is_partially_initialized(), "must not initialize"); | |
757 if (major < 5) { | |
758 // JDK verison sequence: 1.2.x, 1.3.x, 1.4.x, 5.0.x, 6.0.x, etc. | |
759 micro = minor; | |
760 minor = major; | |
761 major = 1; | |
0 | 762 } |
242 | 763 _current = JDK_Version(major, minor, micro, update); |
0 | 764 } |
765 | |
766 void JDK_Version_init() { | |
767 JDK_Version::initialize(); | |
768 } | |
242 | 769 |
770 static int64_t encode_jdk_version(const JDK_Version& v) { | |
771 return | |
772 ((int64_t)v.major_version() << (BitsPerByte * 5)) | | |
773 ((int64_t)v.minor_version() << (BitsPerByte * 4)) | | |
774 ((int64_t)v.micro_version() << (BitsPerByte * 3)) | | |
775 ((int64_t)v.update_version() << (BitsPerByte * 2)) | | |
776 ((int64_t)v.special_update_version() << (BitsPerByte * 1)) | | |
777 ((int64_t)v.build_number() << (BitsPerByte * 0)); | |
778 } | |
779 | |
780 int JDK_Version::compare(const JDK_Version& other) const { | |
781 assert(is_valid() && other.is_valid(), "Invalid version (uninitialized?)"); | |
782 if (!is_partially_initialized() && other.is_partially_initialized()) { | |
783 return -(other.compare(*this)); // flip the comparators | |
784 } | |
785 assert(!other.is_partially_initialized(), "Not initialized yet"); | |
786 if (is_partially_initialized()) { | |
787 assert(other.major_version() >= 6, | |
788 "Invalid JDK version comparison during initialization"); | |
789 return -1; | |
790 } else { | |
791 uint64_t e = encode_jdk_version(*this); | |
792 uint64_t o = encode_jdk_version(other); | |
793 return (e > o) ? 1 : ((e == o) ? 0 : -1); | |
794 } | |
795 } | |
796 | |
797 void JDK_Version::to_string(char* buffer, size_t buflen) const { | |
798 size_t index = 0; | |
799 if (!is_valid()) { | |
800 jio_snprintf(buffer, buflen, "%s", "(uninitialized)"); | |
801 } else if (is_partially_initialized()) { | |
802 jio_snprintf(buffer, buflen, "%s", "(uninitialized) pre-1.6.0"); | |
803 } else { | |
804 index += jio_snprintf( | |
805 &buffer[index], buflen - index, "%d.%d", _major, _minor); | |
806 if (_micro > 0) { | |
807 index += jio_snprintf(&buffer[index], buflen - index, ".%d", _micro); | |
808 } | |
809 if (_update > 0) { | |
810 index += jio_snprintf(&buffer[index], buflen - index, "_%02d", _update); | |
811 } | |
812 if (_special > 0) { | |
813 index += jio_snprintf(&buffer[index], buflen - index, "%c", _special); | |
814 } | |
815 if (_build > 0) { | |
816 index += jio_snprintf(&buffer[index], buflen - index, "-b%02d", _build); | |
817 } | |
818 } | |
819 } |