Mercurial > hg > truffle
annotate src/share/vm/runtime/java.cpp @ 12888:4a2acfb16e97
8025657: compiler/intrinsics/mathexact/ConstantTest.java fails on assert in lcm.cpp on solaris x64
Reviewed-by: kvn, twisti
author | rbackman |
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date | Fri, 11 Oct 2013 12:06:14 +0200 |
parents | d13d7aba8c12 |
children | 5ccbab1c69f3 |
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" | |
33 #include "memory/genCollectedHeap.hpp" | |
34 #include "memory/oopFactory.hpp" | |
35 #include "memory/universe.hpp" | |
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36 #include "oops/constantPool.hpp" |
1972 | 37 #include "oops/generateOopMap.hpp" |
38 #include "oops/instanceKlass.hpp" | |
39 #include "oops/instanceOop.hpp" | |
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40 #include "oops/method.hpp" |
1972 | 41 #include "oops/objArrayOop.hpp" |
42 #include "oops/oop.inline.hpp" | |
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43 #include "oops/symbol.hpp" |
1972 | 44 #include "prims/jvmtiExport.hpp" |
45 #include "runtime/arguments.hpp" | |
46 #include "runtime/biasedLocking.hpp" | |
47 #include "runtime/compilationPolicy.hpp" | |
48 #include "runtime/fprofiler.hpp" | |
49 #include "runtime/init.hpp" | |
50 #include "runtime/interfaceSupport.hpp" | |
51 #include "runtime/java.hpp" | |
52 #include "runtime/memprofiler.hpp" | |
53 #include "runtime/sharedRuntime.hpp" | |
54 #include "runtime/statSampler.hpp" | |
55 #include "runtime/task.hpp" | |
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56 #include "runtime/thread.inline.hpp" |
1972 | 57 #include "runtime/timer.hpp" |
58 #include "runtime/vm_operations.hpp" | |
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59 #include "services/memReporter.hpp" |
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60 #include "services/memTracker.hpp" |
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61 #include "trace/tracing.hpp" |
1972 | 62 #include "utilities/dtrace.hpp" |
63 #include "utilities/globalDefinitions.hpp" | |
64 #include "utilities/histogram.hpp" | |
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65 #include "utilities/macros.hpp" |
1972 | 66 #include "utilities/vmError.hpp" |
67 #ifdef TARGET_ARCH_x86 | |
68 # include "vm_version_x86.hpp" | |
69 #endif | |
70 #ifdef TARGET_ARCH_sparc | |
71 # include "vm_version_sparc.hpp" | |
72 #endif | |
73 #ifdef TARGET_ARCH_zero | |
74 # include "vm_version_zero.hpp" | |
75 #endif | |
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76 #ifdef TARGET_ARCH_arm |
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77 # include "vm_version_arm.hpp" |
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78 #endif |
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79 #ifdef TARGET_ARCH_ppc |
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80 # include "vm_version_ppc.hpp" |
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81 #endif |
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82 #if INCLUDE_ALL_GCS |
1972 | 83 #include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepThread.hpp" |
84 #include "gc_implementation/parallelScavenge/psScavenge.hpp" | |
85 #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp" | |
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86 #endif // INCLUDE_ALL_GCS |
1972 | 87 #ifdef COMPILER1 |
88 #include "c1/c1_Compiler.hpp" | |
89 #include "c1/c1_Runtime1.hpp" | |
90 #endif | |
91 #ifdef COMPILER2 | |
92 #include "code/compiledIC.hpp" | |
93 #include "compiler/methodLiveness.hpp" | |
94 #include "opto/compile.hpp" | |
95 #include "opto/indexSet.hpp" | |
96 #include "opto/runtime.hpp" | |
97 #endif | |
0 | 98 |
4006 | 99 #ifndef USDT2 |
0 | 100 HS_DTRACE_PROBE_DECL(hotspot, vm__shutdown); |
4006 | 101 #endif /* !USDT2 */ |
0 | 102 |
103 #ifndef PRODUCT | |
104 | |
105 // Statistics printing (method invocation histogram) | |
106 | |
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107 GrowableArray<Method*>* collected_invoked_methods; |
0 | 108 |
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109 void collect_invoked_methods(Method* m) { |
0 | 110 if (m->invocation_count() + m->compiled_invocation_count() >= 1 ) { |
111 collected_invoked_methods->push(m); | |
112 } | |
113 } | |
114 | |
115 | |
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116 GrowableArray<Method*>* collected_profiled_methods; |
0 | 117 |
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118 void collect_profiled_methods(Method* m) { |
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119 Thread* thread = Thread::current(); |
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120 // This HandleMark prevents a huge amount of handles from being added |
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121 // to the metadata_handles() array on the thread. |
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122 HandleMark hm(thread); |
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123 methodHandle mh(thread, m); |
0 | 124 if ((m->method_data() != NULL) && |
125 (PrintMethodData || CompilerOracle::should_print(mh))) { | |
126 collected_profiled_methods->push(m); | |
127 } | |
128 } | |
129 | |
130 | |
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131 int compare_methods(Method** a, Method** b) { |
0 | 132 // %%% there can be 32-bit overflow here |
133 return ((*b)->invocation_count() + (*b)->compiled_invocation_count()) | |
134 - ((*a)->invocation_count() + (*a)->compiled_invocation_count()); | |
135 } | |
136 | |
137 | |
138 void print_method_invocation_histogram() { | |
139 ResourceMark rm; | |
140 HandleMark hm; | |
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141 collected_invoked_methods = new GrowableArray<Method*>(1024); |
0 | 142 SystemDictionary::methods_do(collect_invoked_methods); |
143 collected_invoked_methods->sort(&compare_methods); | |
144 // | |
145 tty->cr(); | |
146 tty->print_cr("Histogram Over MethodOop Invocation Counters (cutoff = %d):", MethodHistogramCutoff); | |
147 tty->cr(); | |
148 tty->print_cr("____Count_(I+C)____Method________________________Module_________________"); | |
149 unsigned total = 0, int_total = 0, comp_total = 0, static_total = 0, final_total = 0, | |
150 synch_total = 0, nativ_total = 0, acces_total = 0; | |
151 for (int index = 0; index < collected_invoked_methods->length(); index++) { | |
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152 Method* m = collected_invoked_methods->at(index); |
0 | 153 int c = m->invocation_count() + m->compiled_invocation_count(); |
154 if (c >= MethodHistogramCutoff) m->print_invocation_count(); | |
155 int_total += m->invocation_count(); | |
156 comp_total += m->compiled_invocation_count(); | |
157 if (m->is_final()) final_total += c; | |
158 if (m->is_static()) static_total += c; | |
159 if (m->is_synchronized()) synch_total += c; | |
160 if (m->is_native()) nativ_total += c; | |
161 if (m->is_accessor()) acces_total += c; | |
162 } | |
163 tty->cr(); | |
164 total = int_total + comp_total; | |
165 tty->print_cr("Invocations summary:"); | |
166 tty->print_cr("\t%9d (%4.1f%%) interpreted", int_total, 100.0 * int_total / total); | |
167 tty->print_cr("\t%9d (%4.1f%%) compiled", comp_total, 100.0 * comp_total / total); | |
168 tty->print_cr("\t%9d (100%%) total", total); | |
169 tty->print_cr("\t%9d (%4.1f%%) synchronized", synch_total, 100.0 * synch_total / total); | |
170 tty->print_cr("\t%9d (%4.1f%%) final", final_total, 100.0 * final_total / total); | |
171 tty->print_cr("\t%9d (%4.1f%%) static", static_total, 100.0 * static_total / total); | |
172 tty->print_cr("\t%9d (%4.1f%%) native", nativ_total, 100.0 * nativ_total / total); | |
173 tty->print_cr("\t%9d (%4.1f%%) accessor", acces_total, 100.0 * acces_total / total); | |
174 tty->cr(); | |
175 SharedRuntime::print_call_statistics(comp_total); | |
176 } | |
177 | |
178 void print_method_profiling_data() { | |
179 ResourceMark rm; | |
180 HandleMark hm; | |
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181 collected_profiled_methods = new GrowableArray<Method*>(1024); |
0 | 182 SystemDictionary::methods_do(collect_profiled_methods); |
183 collected_profiled_methods->sort(&compare_methods); | |
184 | |
185 int count = collected_profiled_methods->length(); | |
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186 int total_size = 0; |
0 | 187 if (count > 0) { |
188 for (int index = 0; index < count; index++) { | |
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189 Method* m = collected_profiled_methods->at(index); |
0 | 190 ttyLocker ttyl; |
191 tty->print_cr("------------------------------------------------------------------------"); | |
192 //m->print_name(tty); | |
193 m->print_invocation_count(); | |
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194 tty->print_cr(" mdo size: %d bytes", m->method_data()->size_in_bytes()); |
0 | 195 tty->cr(); |
196 m->print_codes(); | |
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197 total_size += m->method_data()->size_in_bytes(); |
0 | 198 } |
199 tty->print_cr("------------------------------------------------------------------------"); | |
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200 tty->print_cr("Total MDO size: %d bytes", total_size); |
0 | 201 } |
202 } | |
203 | |
204 void print_bytecode_count() { | |
205 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) { | |
206 tty->print_cr("[BytecodeCounter::counter_value = %d]", BytecodeCounter::counter_value()); | |
207 } | |
208 } | |
209 | |
210 AllocStats alloc_stats; | |
211 | |
212 | |
213 | |
214 // General statistics printing (profiling ...) | |
215 | |
216 void print_statistics() { | |
217 | |
218 #ifdef ASSERT | |
219 | |
220 if (CountRuntimeCalls) { | |
221 extern Histogram *RuntimeHistogram; | |
222 RuntimeHistogram->print(); | |
223 } | |
224 | |
225 if (CountJNICalls) { | |
226 extern Histogram *JNIHistogram; | |
227 JNIHistogram->print(); | |
228 } | |
229 | |
230 if (CountJVMCalls) { | |
231 extern Histogram *JVMHistogram; | |
232 JVMHistogram->print(); | |
233 } | |
234 | |
235 #endif | |
236 | |
237 if (MemProfiling) { | |
238 MemProfiler::disengage(); | |
239 } | |
240 | |
241 if (CITime) { | |
242 CompileBroker::print_times(); | |
243 } | |
244 | |
245 #ifdef COMPILER1 | |
246 if ((PrintC1Statistics || LogVMOutput || LogCompilation) && UseCompiler) { | |
247 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintC1Statistics); | |
248 Runtime1::print_statistics(); | |
249 Deoptimization::print_statistics(); | |
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250 SharedRuntime::print_statistics(); |
0 | 251 nmethod::print_statistics(); |
252 } | |
253 #endif /* COMPILER1 */ | |
254 | |
255 #ifdef COMPILER2 | |
256 if ((PrintOptoStatistics || LogVMOutput || LogCompilation) && UseCompiler) { | |
257 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintOptoStatistics); | |
258 Compile::print_statistics(); | |
259 #ifndef COMPILER1 | |
260 Deoptimization::print_statistics(); | |
261 nmethod::print_statistics(); | |
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262 SharedRuntime::print_statistics(); |
0 | 263 #endif //COMPILER1 |
264 os::print_statistics(); | |
265 } | |
266 | |
267 if (PrintLockStatistics || PrintPreciseBiasedLockingStatistics) { | |
268 OptoRuntime::print_named_counters(); | |
269 } | |
270 | |
271 if (TimeLivenessAnalysis) { | |
272 MethodLiveness::print_times(); | |
273 } | |
274 #ifdef ASSERT | |
275 if (CollectIndexSetStatistics) { | |
276 IndexSet::print_statistics(); | |
277 } | |
278 #endif // ASSERT | |
279 #endif // COMPILER2 | |
280 if (CountCompiledCalls) { | |
281 print_method_invocation_histogram(); | |
282 } | |
1918 | 283 if (ProfileInterpreter COMPILER1_PRESENT(|| C1UpdateMethodData)) { |
0 | 284 print_method_profiling_data(); |
285 } | |
286 if (TimeCompiler) { | |
287 COMPILER2_PRESENT(Compile::print_timers();) | |
288 } | |
289 if (TimeCompilationPolicy) { | |
290 CompilationPolicy::policy()->print_time(); | |
291 } | |
292 if (TimeOopMap) { | |
293 GenerateOopMap::print_time(); | |
294 } | |
295 if (ProfilerCheckIntervals) { | |
296 PeriodicTask::print_intervals(); | |
297 } | |
298 if (PrintSymbolTableSizeHistogram) { | |
299 SymbolTable::print_histogram(); | |
300 } | |
301 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) { | |
302 BytecodeCounter::print(); | |
303 } | |
304 if (PrintBytecodePairHistogram) { | |
305 BytecodePairHistogram::print(); | |
306 } | |
307 | |
308 if (PrintCodeCache) { | |
309 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
310 CodeCache::print(); | |
311 } | |
312 | |
313 if (PrintCodeCache2) { | |
314 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
315 CodeCache::print_internals(); | |
316 } | |
317 | |
318 if (PrintClassStatistics) { | |
319 SystemDictionary::print_class_statistics(); | |
320 } | |
321 if (PrintMethodStatistics) { | |
322 SystemDictionary::print_method_statistics(); | |
323 } | |
324 | |
325 if (PrintVtableStats) { | |
326 klassVtable::print_statistics(); | |
327 klassItable::print_statistics(); | |
328 } | |
329 if (VerifyOops) { | |
330 tty->print_cr("+VerifyOops count: %d", StubRoutines::verify_oop_count()); | |
331 } | |
332 | |
333 print_bytecode_count(); | |
2250 | 334 if (PrintMallocStatistics) { |
0 | 335 tty->print("allocation stats: "); |
336 alloc_stats.print(); | |
337 tty->cr(); | |
338 } | |
339 | |
340 if (PrintSystemDictionaryAtExit) { | |
341 SystemDictionary::print(); | |
342 } | |
343 | |
344 if (PrintBiasedLockingStatistics) { | |
345 BiasedLocking::print_counters(); | |
346 } | |
347 | |
348 #ifdef ENABLE_ZAP_DEAD_LOCALS | |
349 #ifdef COMPILER2 | |
350 if (ZapDeadCompiledLocals) { | |
351 tty->print_cr("Compile::CompiledZap_count = %d", Compile::CompiledZap_count); | |
352 tty->print_cr("OptoRuntime::ZapDeadCompiledLocals_count = %d", OptoRuntime::ZapDeadCompiledLocals_count); | |
353 } | |
354 #endif // COMPILER2 | |
355 #endif // ENABLE_ZAP_DEAD_LOCALS | |
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356 // Native memory tracking data |
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357 if (PrintNMTStatistics) { |
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358 if (MemTracker::is_on()) { |
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359 BaselineTTYOutputer outputer(tty); |
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360 MemTracker::print_memory_usage(outputer, K, false); |
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361 } else { |
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362 tty->print_cr(MemTracker::reason()); |
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363 } |
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364 } |
0 | 365 } |
366 | |
367 #else // PRODUCT MODE STATISTICS | |
368 | |
369 void print_statistics() { | |
370 | |
371 if (CITime) { | |
372 CompileBroker::print_times(); | |
373 } | |
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374 |
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375 if (PrintCodeCache) { |
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376 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
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377 CodeCache::print(); |
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378 } |
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379 |
0 | 380 #ifdef COMPILER2 |
381 if (PrintPreciseBiasedLockingStatistics) { | |
382 OptoRuntime::print_named_counters(); | |
383 } | |
384 #endif | |
385 if (PrintBiasedLockingStatistics) { | |
386 BiasedLocking::print_counters(); | |
387 } | |
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388 |
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389 // Native memory tracking data |
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390 if (PrintNMTStatistics) { |
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391 if (MemTracker::is_on()) { |
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392 BaselineTTYOutputer outputer(tty); |
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393 MemTracker::print_memory_usage(outputer, K, false); |
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394 } else { |
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395 tty->print_cr(MemTracker::reason()); |
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396 } |
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397 } |
0 | 398 } |
399 | |
400 #endif | |
401 | |
402 | |
403 // Helper class for registering on_exit calls through JVM_OnExit | |
404 | |
405 extern "C" { | |
406 typedef void (*__exit_proc)(void); | |
407 } | |
408 | |
6197 | 409 class ExitProc : public CHeapObj<mtInternal> { |
0 | 410 private: |
411 __exit_proc _proc; | |
412 // void (*_proc)(void); | |
413 ExitProc* _next; | |
414 public: | |
415 // ExitProc(void (*proc)(void)) { | |
416 ExitProc(__exit_proc proc) { | |
417 _proc = proc; | |
418 _next = NULL; | |
419 } | |
420 void evaluate() { _proc(); } | |
421 ExitProc* next() const { return _next; } | |
422 void set_next(ExitProc* next) { _next = next; } | |
423 }; | |
424 | |
425 | |
426 // Linked list of registered on_exit procedures | |
427 | |
428 static ExitProc* exit_procs = NULL; | |
429 | |
430 | |
431 extern "C" { | |
432 void register_on_exit_function(void (*func)(void)) { | |
433 ExitProc *entry = new ExitProc(func); | |
434 // Classic vm does not throw an exception in case the allocation failed, | |
435 if (entry != NULL) { | |
436 entry->set_next(exit_procs); | |
437 exit_procs = entry; | |
438 } | |
439 } | |
440 } | |
441 | |
442 // Note: before_exit() can be executed only once, if more than one threads | |
443 // are trying to shutdown the VM at the same time, only one thread | |
444 // can run before_exit() and all other threads must wait. | |
445 void before_exit(JavaThread * thread) { | |
446 #define BEFORE_EXIT_NOT_RUN 0 | |
447 #define BEFORE_EXIT_RUNNING 1 | |
448 #define BEFORE_EXIT_DONE 2 | |
449 static jint volatile _before_exit_status = BEFORE_EXIT_NOT_RUN; | |
450 | |
451 // Note: don't use a Mutex to guard the entire before_exit(), as | |
452 // JVMTI post_thread_end_event and post_vm_death_event will run native code. | |
453 // A CAS or OSMutex would work just fine but then we need to manipulate | |
454 // thread state for Safepoint. Here we use Monitor wait() and notify_all() | |
455 // for synchronization. | |
456 { MutexLocker ml(BeforeExit_lock); | |
457 switch (_before_exit_status) { | |
458 case BEFORE_EXIT_NOT_RUN: | |
459 _before_exit_status = BEFORE_EXIT_RUNNING; | |
460 break; | |
461 case BEFORE_EXIT_RUNNING: | |
462 while (_before_exit_status == BEFORE_EXIT_RUNNING) { | |
463 BeforeExit_lock->wait(); | |
464 } | |
465 assert(_before_exit_status == BEFORE_EXIT_DONE, "invalid state"); | |
466 return; | |
467 case BEFORE_EXIT_DONE: | |
468 return; | |
469 } | |
470 } | |
471 | |
472 // The only difference between this and Win32's _onexit procs is that | |
473 // this version is invoked before any threads get killed. | |
474 ExitProc* current = exit_procs; | |
475 while (current != NULL) { | |
476 ExitProc* next = current->next(); | |
477 current->evaluate(); | |
478 delete current; | |
479 current = next; | |
480 } | |
481 | |
482 // Hang forever on exit if we're reporting an error. | |
483 if (ShowMessageBoxOnError && is_error_reported()) { | |
484 os::infinite_sleep(); | |
485 } | |
486 | |
487 // Terminate watcher thread - must before disenrolling any periodic task | |
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488 if (PeriodicTask::num_tasks() > 0) |
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489 WatcherThread::stop(); |
0 | 490 |
491 // Print statistics gathered (profiling ...) | |
492 if (Arguments::has_profile()) { | |
493 FlatProfiler::disengage(); | |
494 FlatProfiler::print(10); | |
495 } | |
496 | |
497 // shut down the StatSampler task | |
498 StatSampler::disengage(); | |
499 StatSampler::destroy(); | |
500 | |
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501 // We do not need to explicitly stop concurrent GC threads because the |
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502 // JVM will be taken down at a safepoint when such threads are inactive -- |
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503 // except for some concurrent G1 threads, see (comment in) |
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504 // Threads::destroy_vm(). |
0 | 505 |
506 // Print GC/heap related information. | |
507 if (PrintGCDetails) { | |
508 Universe::print(); | |
509 AdaptiveSizePolicyOutput(0); | |
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510 if (Verbose) { |
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511 ClassLoaderDataGraph::dump_on(gclog_or_tty); |
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512 } |
0 | 513 } |
514 | |
515 if (PrintBytecodeHistogram) { | |
516 BytecodeHistogram::print(); | |
517 } | |
518 | |
519 if (JvmtiExport::should_post_thread_life()) { | |
520 JvmtiExport::post_thread_end(thread); | |
521 } | |
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522 |
10405 | 523 |
524 EventThreadEnd event; | |
525 if (event.should_commit()) { | |
526 event.set_javalangthread(java_lang_Thread::thread_id(thread->threadObj())); | |
527 event.commit(); | |
528 } | |
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529 |
0 | 530 // Always call even when there are not JVMTI environments yet, since environments |
531 // may be attached late and JVMTI must track phases of VM execution | |
532 JvmtiExport::post_vm_death(); | |
533 Threads::shutdown_vm_agents(); | |
534 | |
535 // Terminate the signal thread | |
536 // Note: we don't wait until it actually dies. | |
537 os::terminate_signal_thread(); | |
538 | |
539 print_statistics(); | |
540 Universe::heap()->print_tracing_info(); | |
541 | |
542 { MutexLocker ml(BeforeExit_lock); | |
543 _before_exit_status = BEFORE_EXIT_DONE; | |
544 BeforeExit_lock->notify_all(); | |
545 } | |
546 | |
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547 // Shutdown NMT before exit. Otherwise, |
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548 // it will run into trouble when system destroys static variables. |
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549 MemTracker::shutdown(MemTracker::NMT_normal); |
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550 |
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551 if (VerifyStringTableAtExit) { |
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552 int fail_cnt = 0; |
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553 { |
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554 MutexLocker ml(StringTable_lock); |
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555 fail_cnt = StringTable::verify_and_compare_entries(); |
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556 } |
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557 |
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558 if (fail_cnt != 0) { |
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559 tty->print_cr("ERROR: fail_cnt=%d", fail_cnt); |
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560 guarantee(fail_cnt == 0, "unexpected StringTable verification failures"); |
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561 } |
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562 } |
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563 |
0 | 564 #undef BEFORE_EXIT_NOT_RUN |
565 #undef BEFORE_EXIT_RUNNING | |
566 #undef BEFORE_EXIT_DONE | |
567 } | |
568 | |
569 void vm_exit(int code) { | |
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570 Thread* thread = ThreadLocalStorage::is_initialized() ? |
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571 ThreadLocalStorage::get_thread_slow() : NULL; |
0 | 572 if (thread == NULL) { |
573 // we have serious problems -- just exit | |
574 vm_direct_exit(code); | |
575 } | |
576 | |
577 if (VMThread::vm_thread() != NULL) { | |
578 // Fire off a VM_Exit operation to bring VM to a safepoint and exit | |
579 VM_Exit op(code); | |
580 if (thread->is_Java_thread()) | |
581 ((JavaThread*)thread)->set_thread_state(_thread_in_vm); | |
582 VMThread::execute(&op); | |
583 // should never reach here; but in case something wrong with VM Thread. | |
584 vm_direct_exit(code); | |
585 } else { | |
586 // VM thread is gone, just exit | |
587 vm_direct_exit(code); | |
588 } | |
589 ShouldNotReachHere(); | |
590 } | |
591 | |
592 void notify_vm_shutdown() { | |
593 // For now, just a dtrace probe. | |
4006 | 594 #ifndef USDT2 |
0 | 595 HS_DTRACE_PROBE(hotspot, vm__shutdown); |
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596 HS_DTRACE_WORKAROUND_TAIL_CALL_BUG(); |
4006 | 597 #else /* USDT2 */ |
598 HOTSPOT_VM_SHUTDOWN(); | |
599 #endif /* USDT2 */ | |
0 | 600 } |
601 | |
602 void vm_direct_exit(int code) { | |
603 notify_vm_shutdown(); | |
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604 os::wait_for_keypress_at_exit(); |
0 | 605 ::exit(code); |
606 } | |
607 | |
608 void vm_perform_shutdown_actions() { | |
609 // Warning: do not call 'exit_globals()' here. All threads are still running. | |
610 // Calling 'exit_globals()' will disable thread-local-storage and cause all | |
611 // kinds of assertions to trigger in debug mode. | |
612 if (is_init_completed()) { | |
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613 Thread* thread = ThreadLocalStorage::is_initialized() ? |
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614 ThreadLocalStorage::get_thread_slow() : NULL; |
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615 if (thread != NULL && thread->is_Java_thread()) { |
0 | 616 // We are leaving the VM, set state to native (in case any OS exit |
617 // handlers call back to the VM) | |
618 JavaThread* jt = (JavaThread*)thread; | |
619 // Must always be walkable or have no last_Java_frame when in | |
620 // thread_in_native | |
621 jt->frame_anchor()->make_walkable(jt); | |
622 jt->set_thread_state(_thread_in_native); | |
623 } | |
624 } | |
625 notify_vm_shutdown(); | |
626 } | |
627 | |
628 void vm_shutdown() | |
629 { | |
630 vm_perform_shutdown_actions(); | |
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631 os::wait_for_keypress_at_exit(); |
0 | 632 os::shutdown(); |
633 } | |
634 | |
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635 void vm_abort(bool dump_core) { |
0 | 636 vm_perform_shutdown_actions(); |
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637 os::wait_for_keypress_at_exit(); |
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638 os::abort(dump_core); |
0 | 639 ShouldNotReachHere(); |
640 } | |
641 | |
642 void vm_notify_during_shutdown(const char* error, const char* message) { | |
643 if (error != NULL) { | |
644 tty->print_cr("Error occurred during initialization of VM"); | |
645 tty->print("%s", error); | |
646 if (message != NULL) { | |
647 tty->print_cr(": %s", message); | |
648 } | |
649 else { | |
650 tty->cr(); | |
651 } | |
652 } | |
653 if (ShowMessageBoxOnError && WizardMode) { | |
654 fatal("Error occurred during initialization of VM"); | |
655 } | |
656 } | |
657 | |
658 void vm_exit_during_initialization(Handle exception) { | |
659 tty->print_cr("Error occurred during initialization of VM"); | |
660 // If there are exceptions on this thread it must be cleared | |
661 // first and here. Any future calls to EXCEPTION_MARK requires | |
662 // that no pending exceptions exist. | |
663 Thread *THREAD = Thread::current(); | |
664 if (HAS_PENDING_EXCEPTION) { | |
665 CLEAR_PENDING_EXCEPTION; | |
666 } | |
667 java_lang_Throwable::print(exception, tty); | |
668 tty->cr(); | |
669 java_lang_Throwable::print_stack_trace(exception(), tty); | |
670 tty->cr(); | |
671 vm_notify_during_shutdown(NULL, NULL); | |
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672 |
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673 // Failure during initialization, we don't want to dump core |
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674 vm_abort(false); |
0 | 675 } |
676 | |
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677 void vm_exit_during_initialization(Symbol* ex, const char* message) { |
0 | 678 ResourceMark rm; |
679 vm_notify_during_shutdown(ex->as_C_string(), message); | |
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680 |
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681 // Failure during initialization, we don't want to dump core |
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682 vm_abort(false); |
0 | 683 } |
684 | |
685 void vm_exit_during_initialization(const char* error, const char* message) { | |
686 vm_notify_during_shutdown(error, message); | |
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687 |
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688 // Failure during initialization, we don't want to dump core |
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689 vm_abort(false); |
0 | 690 } |
691 | |
692 void vm_shutdown_during_initialization(const char* error, const char* message) { | |
693 vm_notify_during_shutdown(error, message); | |
694 vm_shutdown(); | |
695 } | |
696 | |
242 | 697 JDK_Version JDK_Version::_current; |
6181 | 698 const char* JDK_Version::_runtime_name; |
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699 const char* JDK_Version::_runtime_version; |
0 | 700 |
701 void JDK_Version::initialize() { | |
242 | 702 jdk_version_info info; |
703 assert(!_current.is_valid(), "Don't initialize twice"); | |
704 | |
0 | 705 void *lib_handle = os::native_java_library(); |
242 | 706 jdk_version_info_fn_t func = CAST_TO_FN_PTR(jdk_version_info_fn_t, |
707 os::dll_lookup(lib_handle, "JDK_GetVersionInfo0")); | |
0 | 708 |
709 if (func == NULL) { | |
710 // JDK older than 1.6 | |
242 | 711 _current._partially_initialized = true; |
712 } else { | |
713 (*func)(&info, sizeof(info)); | |
0 | 714 |
242 | 715 int major = JDK_VERSION_MAJOR(info.jdk_version); |
716 int minor = JDK_VERSION_MINOR(info.jdk_version); | |
717 int micro = JDK_VERSION_MICRO(info.jdk_version); | |
718 int build = JDK_VERSION_BUILD(info.jdk_version); | |
719 if (major == 1 && minor > 4) { | |
720 // We represent "1.5.0" as "5.0", but 1.4.2 as itself. | |
721 major = minor; | |
722 minor = micro; | |
723 micro = 0; | |
724 } | |
725 _current = JDK_Version(major, minor, micro, info.update_version, | |
726 info.special_update_version, build, | |
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727 info.thread_park_blocker == 1, |
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728 info.post_vm_init_hook_enabled == 1, |
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729 info.pending_list_uses_discovered_field == 1); |
0 | 730 } |
242 | 731 } |
732 | |
733 void JDK_Version::fully_initialize( | |
734 uint8_t major, uint8_t minor, uint8_t micro, uint8_t update) { | |
735 // This is only called when current is less than 1.6 and we've gotten | |
736 // far enough in the initialization to determine the exact version. | |
737 assert(major < 6, "not needed for JDK version >= 6"); | |
738 assert(is_partially_initialized(), "must not initialize"); | |
739 if (major < 5) { | |
740 // JDK verison sequence: 1.2.x, 1.3.x, 1.4.x, 5.0.x, 6.0.x, etc. | |
741 micro = minor; | |
742 minor = major; | |
743 major = 1; | |
0 | 744 } |
242 | 745 _current = JDK_Version(major, minor, micro, update); |
0 | 746 } |
747 | |
748 void JDK_Version_init() { | |
749 JDK_Version::initialize(); | |
750 } | |
242 | 751 |
752 static int64_t encode_jdk_version(const JDK_Version& v) { | |
753 return | |
754 ((int64_t)v.major_version() << (BitsPerByte * 5)) | | |
755 ((int64_t)v.minor_version() << (BitsPerByte * 4)) | | |
756 ((int64_t)v.micro_version() << (BitsPerByte * 3)) | | |
757 ((int64_t)v.update_version() << (BitsPerByte * 2)) | | |
758 ((int64_t)v.special_update_version() << (BitsPerByte * 1)) | | |
759 ((int64_t)v.build_number() << (BitsPerByte * 0)); | |
760 } | |
761 | |
762 int JDK_Version::compare(const JDK_Version& other) const { | |
763 assert(is_valid() && other.is_valid(), "Invalid version (uninitialized?)"); | |
764 if (!is_partially_initialized() && other.is_partially_initialized()) { | |
765 return -(other.compare(*this)); // flip the comparators | |
766 } | |
767 assert(!other.is_partially_initialized(), "Not initialized yet"); | |
768 if (is_partially_initialized()) { | |
769 assert(other.major_version() >= 6, | |
770 "Invalid JDK version comparison during initialization"); | |
771 return -1; | |
772 } else { | |
773 uint64_t e = encode_jdk_version(*this); | |
774 uint64_t o = encode_jdk_version(other); | |
775 return (e > o) ? 1 : ((e == o) ? 0 : -1); | |
776 } | |
777 } | |
778 | |
779 void JDK_Version::to_string(char* buffer, size_t buflen) const { | |
780 size_t index = 0; | |
781 if (!is_valid()) { | |
782 jio_snprintf(buffer, buflen, "%s", "(uninitialized)"); | |
783 } else if (is_partially_initialized()) { | |
784 jio_snprintf(buffer, buflen, "%s", "(uninitialized) pre-1.6.0"); | |
785 } else { | |
786 index += jio_snprintf( | |
787 &buffer[index], buflen - index, "%d.%d", _major, _minor); | |
788 if (_micro > 0) { | |
789 index += jio_snprintf(&buffer[index], buflen - index, ".%d", _micro); | |
790 } | |
791 if (_update > 0) { | |
792 index += jio_snprintf(&buffer[index], buflen - index, "_%02d", _update); | |
793 } | |
794 if (_special > 0) { | |
795 index += jio_snprintf(&buffer[index], buflen - index, "%c", _special); | |
796 } | |
797 if (_build > 0) { | |
798 index += jio_snprintf(&buffer[index], buflen - index, "-b%02d", _build); | |
799 } | |
800 } | |
801 } |