Mercurial > hg > truffle
annotate src/share/vm/runtime/java.cpp @ 7090:05ce1defa4f9
Common out some parts of UnsafeLoad/Store in UnsafeAccess
author | Gilles Duboscq <duboscq@ssw.jku.at> |
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date | Thu, 29 Nov 2012 13:24:08 +0100 |
parents | e522a00b91aa |
children | 291ffc492eb6 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2012, 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 #endif |
1972 | 36 #include "memory/genCollectedHeap.hpp" |
37 #include "memory/oopFactory.hpp" | |
38 #include "memory/universe.hpp" | |
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39 #include "oops/constantPool.hpp" |
1972 | 40 #include "oops/generateOopMap.hpp" |
41 #include "oops/instanceKlass.hpp" | |
42 #include "oops/instanceOop.hpp" | |
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43 #include "oops/method.hpp" |
1972 | 44 #include "oops/objArrayOop.hpp" |
45 #include "oops/oop.inline.hpp" | |
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46 #include "oops/symbol.hpp" |
1972 | 47 #include "prims/jvmtiExport.hpp" |
48 #include "runtime/aprofiler.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" | |
60 #include "runtime/timer.hpp" | |
61 #include "runtime/vm_operations.hpp" | |
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62 #include "services/memReporter.hpp" |
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63 #include "services/memTracker.hpp" |
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64 #include "trace/tracing.hpp" |
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65 #include "trace/traceEventTypes.hpp" |
1972 | 66 #include "utilities/dtrace.hpp" |
67 #include "utilities/globalDefinitions.hpp" | |
68 #include "utilities/histogram.hpp" | |
69 #include "utilities/vmError.hpp" | |
70 #ifdef TARGET_ARCH_x86 | |
71 # include "vm_version_x86.hpp" | |
72 #endif | |
73 #ifdef TARGET_ARCH_sparc | |
74 # include "vm_version_sparc.hpp" | |
75 #endif | |
76 #ifdef TARGET_ARCH_zero | |
77 # include "vm_version_zero.hpp" | |
78 #endif | |
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79 #ifdef TARGET_ARCH_arm |
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80 # include "vm_version_arm.hpp" |
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81 #endif |
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82 #ifdef TARGET_ARCH_ppc |
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83 # include "vm_version_ppc.hpp" |
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84 #endif |
1972 | 85 #ifdef TARGET_OS_FAMILY_linux |
86 # include "thread_linux.inline.hpp" | |
87 #endif | |
88 #ifdef TARGET_OS_FAMILY_solaris | |
89 # include "thread_solaris.inline.hpp" | |
90 #endif | |
91 #ifdef TARGET_OS_FAMILY_windows | |
92 # include "thread_windows.inline.hpp" | |
93 #endif | |
3960 | 94 #ifdef TARGET_OS_FAMILY_bsd |
95 # include "thread_bsd.inline.hpp" | |
96 #endif | |
1972 | 97 #ifndef SERIALGC |
98 #include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepThread.hpp" | |
99 #include "gc_implementation/parallelScavenge/psScavenge.hpp" | |
100 #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp" | |
101 #endif | |
102 #ifdef COMPILER1 | |
103 #include "c1/c1_Compiler.hpp" | |
104 #include "c1/c1_Runtime1.hpp" | |
105 #endif | |
106 #ifdef COMPILER2 | |
107 #include "code/compiledIC.hpp" | |
108 #include "compiler/methodLiveness.hpp" | |
109 #include "opto/compile.hpp" | |
110 #include "opto/indexSet.hpp" | |
111 #include "opto/runtime.hpp" | |
112 #endif | |
0 | 113 |
4006 | 114 #ifndef USDT2 |
0 | 115 HS_DTRACE_PROBE_DECL(hotspot, vm__shutdown); |
4006 | 116 #endif /* !USDT2 */ |
0 | 117 |
118 #ifndef PRODUCT | |
119 | |
120 // Statistics printing (method invocation histogram) | |
121 | |
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122 GrowableArray<Method*>* collected_invoked_methods; |
0 | 123 |
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124 void collect_invoked_methods(Method* m) { |
0 | 125 if (m->invocation_count() + m->compiled_invocation_count() >= 1 ) { |
126 collected_invoked_methods->push(m); | |
127 } | |
128 } | |
129 | |
130 | |
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131 GrowableArray<Method*>* collected_profiled_methods; |
0 | 132 |
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133 void collect_profiled_methods(Method* m) { |
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134 Thread* thread = Thread::current(); |
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135 // This HandleMark prevents a huge amount of handles from being added |
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136 // to the metadata_handles() array on the thread. |
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137 HandleMark hm(thread); |
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138 methodHandle mh(thread, m); |
0 | 139 if ((m->method_data() != NULL) && |
140 (PrintMethodData || CompilerOracle::should_print(mh))) { | |
141 collected_profiled_methods->push(m); | |
142 } | |
143 } | |
144 | |
145 | |
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146 int compare_methods(Method** a, Method** b) { |
0 | 147 // %%% there can be 32-bit overflow here |
148 return ((*b)->invocation_count() + (*b)->compiled_invocation_count()) | |
149 - ((*a)->invocation_count() + (*a)->compiled_invocation_count()); | |
150 } | |
151 | |
152 | |
153 void print_method_invocation_histogram() { | |
154 ResourceMark rm; | |
155 HandleMark hm; | |
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156 collected_invoked_methods = new GrowableArray<Method*>(1024); |
0 | 157 SystemDictionary::methods_do(collect_invoked_methods); |
158 collected_invoked_methods->sort(&compare_methods); | |
159 // | |
160 tty->cr(); | |
161 tty->print_cr("Histogram Over MethodOop Invocation Counters (cutoff = %d):", MethodHistogramCutoff); | |
162 tty->cr(); | |
163 tty->print_cr("____Count_(I+C)____Method________________________Module_________________"); | |
164 unsigned total = 0, int_total = 0, comp_total = 0, static_total = 0, final_total = 0, | |
165 synch_total = 0, nativ_total = 0, acces_total = 0; | |
166 for (int index = 0; index < collected_invoked_methods->length(); index++) { | |
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167 Method* m = collected_invoked_methods->at(index); |
0 | 168 int c = m->invocation_count() + m->compiled_invocation_count(); |
169 if (c >= MethodHistogramCutoff) m->print_invocation_count(); | |
170 int_total += m->invocation_count(); | |
171 comp_total += m->compiled_invocation_count(); | |
172 if (m->is_final()) final_total += c; | |
173 if (m->is_static()) static_total += c; | |
174 if (m->is_synchronized()) synch_total += c; | |
175 if (m->is_native()) nativ_total += c; | |
176 if (m->is_accessor()) acces_total += c; | |
177 } | |
178 tty->cr(); | |
179 total = int_total + comp_total; | |
180 tty->print_cr("Invocations summary:"); | |
181 tty->print_cr("\t%9d (%4.1f%%) interpreted", int_total, 100.0 * int_total / total); | |
182 tty->print_cr("\t%9d (%4.1f%%) compiled", comp_total, 100.0 * comp_total / total); | |
183 tty->print_cr("\t%9d (100%%) total", total); | |
184 tty->print_cr("\t%9d (%4.1f%%) synchronized", synch_total, 100.0 * synch_total / total); | |
185 tty->print_cr("\t%9d (%4.1f%%) final", final_total, 100.0 * final_total / total); | |
186 tty->print_cr("\t%9d (%4.1f%%) static", static_total, 100.0 * static_total / total); | |
187 tty->print_cr("\t%9d (%4.1f%%) native", nativ_total, 100.0 * nativ_total / total); | |
188 tty->print_cr("\t%9d (%4.1f%%) accessor", acces_total, 100.0 * acces_total / total); | |
189 tty->cr(); | |
190 SharedRuntime::print_call_statistics(comp_total); | |
191 } | |
192 | |
193 void print_method_profiling_data() { | |
194 ResourceMark rm; | |
195 HandleMark hm; | |
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196 collected_profiled_methods = new GrowableArray<Method*>(1024); |
0 | 197 SystemDictionary::methods_do(collect_profiled_methods); |
198 collected_profiled_methods->sort(&compare_methods); | |
199 | |
200 int count = collected_profiled_methods->length(); | |
201 if (count > 0) { | |
202 for (int index = 0; index < count; index++) { | |
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203 Method* m = collected_profiled_methods->at(index); |
0 | 204 ttyLocker ttyl; |
205 tty->print_cr("------------------------------------------------------------------------"); | |
206 //m->print_name(tty); | |
207 m->print_invocation_count(); | |
208 tty->cr(); | |
209 m->print_codes(); | |
210 } | |
211 tty->print_cr("------------------------------------------------------------------------"); | |
212 } | |
213 } | |
214 | |
215 void print_bytecode_count() { | |
216 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) { | |
217 tty->print_cr("[BytecodeCounter::counter_value = %d]", BytecodeCounter::counter_value()); | |
218 } | |
219 } | |
220 | |
221 AllocStats alloc_stats; | |
222 | |
223 | |
224 | |
225 // General statistics printing (profiling ...) | |
226 | |
227 void print_statistics() { | |
228 | |
229 #ifdef ASSERT | |
230 | |
231 if (CountRuntimeCalls) { | |
232 extern Histogram *RuntimeHistogram; | |
233 RuntimeHistogram->print(); | |
234 } | |
235 | |
236 if (CountJNICalls) { | |
237 extern Histogram *JNIHistogram; | |
238 JNIHistogram->print(); | |
239 } | |
240 | |
241 if (CountJVMCalls) { | |
242 extern Histogram *JVMHistogram; | |
243 JVMHistogram->print(); | |
244 } | |
245 | |
246 #endif | |
247 | |
248 if (MemProfiling) { | |
249 MemProfiler::disengage(); | |
250 } | |
251 | |
252 if (CITime) { | |
253 CompileBroker::print_times(); | |
254 } | |
255 | |
256 #ifdef COMPILER1 | |
257 if ((PrintC1Statistics || LogVMOutput || LogCompilation) && UseCompiler) { | |
258 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintC1Statistics); | |
259 Runtime1::print_statistics(); | |
260 Deoptimization::print_statistics(); | |
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261 SharedRuntime::print_statistics(); |
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262 } |
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263 #endif /* COMPILER1 */ |
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264 |
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265 if(PrintNMethodStatistics) { |
0 | 266 nmethod::print_statistics(); |
267 } | |
268 | |
269 #ifdef COMPILER2 | |
270 if ((PrintOptoStatistics || LogVMOutput || LogCompilation) && UseCompiler) { | |
271 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintOptoStatistics); | |
272 Compile::print_statistics(); | |
273 #ifndef COMPILER1 | |
274 Deoptimization::print_statistics(); | |
275 nmethod::print_statistics(); | |
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276 SharedRuntime::print_statistics(); |
0 | 277 #endif //COMPILER1 |
278 os::print_statistics(); | |
279 } | |
280 | |
281 if (PrintLockStatistics || PrintPreciseBiasedLockingStatistics) { | |
282 OptoRuntime::print_named_counters(); | |
283 } | |
284 | |
285 if (TimeLivenessAnalysis) { | |
286 MethodLiveness::print_times(); | |
287 } | |
288 #ifdef ASSERT | |
289 if (CollectIndexSetStatistics) { | |
290 IndexSet::print_statistics(); | |
291 } | |
292 #endif // ASSERT | |
293 #endif // COMPILER2 | |
294 if (CountCompiledCalls) { | |
295 print_method_invocation_histogram(); | |
296 } | |
1918 | 297 if (ProfileInterpreter COMPILER1_PRESENT(|| C1UpdateMethodData)) { |
0 | 298 print_method_profiling_data(); |
299 } | |
300 if (TimeCompiler) { | |
301 COMPILER2_PRESENT(Compile::print_timers();) | |
302 } | |
303 if (TimeCompilationPolicy) { | |
304 CompilationPolicy::policy()->print_time(); | |
305 } | |
306 if (TimeOopMap) { | |
307 GenerateOopMap::print_time(); | |
308 } | |
309 if (ProfilerCheckIntervals) { | |
310 PeriodicTask::print_intervals(); | |
311 } | |
312 if (PrintSymbolTableSizeHistogram) { | |
313 SymbolTable::print_histogram(); | |
314 } | |
315 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) { | |
316 BytecodeCounter::print(); | |
317 } | |
318 if (PrintBytecodePairHistogram) { | |
319 BytecodePairHistogram::print(); | |
320 } | |
321 | |
322 if (PrintCodeCache) { | |
323 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
324 CodeCache::print(); | |
325 } | |
326 | |
327 if (PrintCodeCache2) { | |
328 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
329 CodeCache::print_internals(); | |
330 } | |
331 | |
332 if (PrintClassStatistics) { | |
333 SystemDictionary::print_class_statistics(); | |
334 } | |
335 if (PrintMethodStatistics) { | |
336 SystemDictionary::print_method_statistics(); | |
337 } | |
338 | |
339 if (PrintVtableStats) { | |
340 klassVtable::print_statistics(); | |
341 klassItable::print_statistics(); | |
342 } | |
343 if (VerifyOops) { | |
344 tty->print_cr("+VerifyOops count: %d", StubRoutines::verify_oop_count()); | |
345 } | |
346 | |
347 print_bytecode_count(); | |
2250 | 348 if (PrintMallocStatistics) { |
0 | 349 tty->print("allocation stats: "); |
350 alloc_stats.print(); | |
351 tty->cr(); | |
352 } | |
353 | |
354 if (PrintSystemDictionaryAtExit) { | |
355 SystemDictionary::print(); | |
356 } | |
357 | |
358 if (PrintBiasedLockingStatistics) { | |
359 BiasedLocking::print_counters(); | |
360 } | |
361 | |
362 #ifdef ENABLE_ZAP_DEAD_LOCALS | |
363 #ifdef COMPILER2 | |
364 if (ZapDeadCompiledLocals) { | |
365 tty->print_cr("Compile::CompiledZap_count = %d", Compile::CompiledZap_count); | |
366 tty->print_cr("OptoRuntime::ZapDeadCompiledLocals_count = %d", OptoRuntime::ZapDeadCompiledLocals_count); | |
367 } | |
368 #endif // COMPILER2 | |
369 #endif // ENABLE_ZAP_DEAD_LOCALS | |
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370 // Native memory tracking data |
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371 if (PrintNMTStatistics) { |
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372 if (MemTracker::is_on()) { |
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373 BaselineTTYOutputer outputer(tty); |
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374 MemTracker::print_memory_usage(outputer, K, false); |
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375 } else { |
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376 tty->print_cr(MemTracker::reason()); |
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377 } |
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378 } |
0 | 379 } |
380 | |
381 #else // PRODUCT MODE STATISTICS | |
382 | |
383 void print_statistics() { | |
384 | |
385 if (CITime) { | |
386 CompileBroker::print_times(); | |
387 } | |
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388 if(PrintNMethodStatistics) { |
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389 nmethod::print_statistics(); |
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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 |
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400 // Native memory tracking data |
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401 if (PrintNMTStatistics) { |
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402 if (MemTracker::is_on()) { |
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403 BaselineTTYOutputer outputer(tty); |
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404 MemTracker::print_memory_usage(outputer, K, false); |
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405 } else { |
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406 tty->print_cr(MemTracker::reason()); |
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407 } |
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408 } |
0 | 409 } |
410 | |
411 #endif | |
412 | |
413 | |
414 // Helper class for registering on_exit calls through JVM_OnExit | |
415 | |
416 extern "C" { | |
417 typedef void (*__exit_proc)(void); | |
418 } | |
419 | |
6197 | 420 class ExitProc : public CHeapObj<mtInternal> { |
0 | 421 private: |
422 __exit_proc _proc; | |
423 // void (*_proc)(void); | |
424 ExitProc* _next; | |
425 public: | |
426 // ExitProc(void (*proc)(void)) { | |
427 ExitProc(__exit_proc proc) { | |
428 _proc = proc; | |
429 _next = NULL; | |
430 } | |
431 void evaluate() { _proc(); } | |
432 ExitProc* next() const { return _next; } | |
433 void set_next(ExitProc* next) { _next = next; } | |
434 }; | |
435 | |
436 | |
437 // Linked list of registered on_exit procedures | |
438 | |
439 static ExitProc* exit_procs = NULL; | |
440 | |
441 | |
442 extern "C" { | |
443 void register_on_exit_function(void (*func)(void)) { | |
444 ExitProc *entry = new ExitProc(func); | |
445 // Classic vm does not throw an exception in case the allocation failed, | |
446 if (entry != NULL) { | |
447 entry->set_next(exit_procs); | |
448 exit_procs = entry; | |
449 } | |
450 } | |
451 } | |
452 | |
453 // Note: before_exit() can be executed only once, if more than one threads | |
454 // are trying to shutdown the VM at the same time, only one thread | |
455 // can run before_exit() and all other threads must wait. | |
456 void before_exit(JavaThread * thread) { | |
457 #define BEFORE_EXIT_NOT_RUN 0 | |
458 #define BEFORE_EXIT_RUNNING 1 | |
459 #define BEFORE_EXIT_DONE 2 | |
460 static jint volatile _before_exit_status = BEFORE_EXIT_NOT_RUN; | |
461 | |
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462 #ifdef GRAAL |
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463 GraalCompiler::instance()->exit(); |
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464 #endif |
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465 |
0 | 466 // Note: don't use a Mutex to guard the entire before_exit(), as |
467 // JVMTI post_thread_end_event and post_vm_death_event will run native code. | |
468 // A CAS or OSMutex would work just fine but then we need to manipulate | |
469 // thread state for Safepoint. Here we use Monitor wait() and notify_all() | |
470 // for synchronization. | |
471 { MutexLocker ml(BeforeExit_lock); | |
472 switch (_before_exit_status) { | |
473 case BEFORE_EXIT_NOT_RUN: | |
474 _before_exit_status = BEFORE_EXIT_RUNNING; | |
475 break; | |
476 case BEFORE_EXIT_RUNNING: | |
477 while (_before_exit_status == BEFORE_EXIT_RUNNING) { | |
478 BeforeExit_lock->wait(); | |
479 } | |
480 assert(_before_exit_status == BEFORE_EXIT_DONE, "invalid state"); | |
481 return; | |
482 case BEFORE_EXIT_DONE: | |
483 return; | |
484 } | |
485 } | |
486 | |
487 // The only difference between this and Win32's _onexit procs is that | |
488 // this version is invoked before any threads get killed. | |
489 ExitProc* current = exit_procs; | |
490 while (current != NULL) { | |
491 ExitProc* next = current->next(); | |
492 current->evaluate(); | |
493 delete current; | |
494 current = next; | |
495 } | |
496 | |
497 // Hang forever on exit if we're reporting an error. | |
498 if (ShowMessageBoxOnError && is_error_reported()) { | |
499 os::infinite_sleep(); | |
500 } | |
501 | |
502 // Terminate watcher thread - must before disenrolling any periodic task | |
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503 if (PeriodicTask::num_tasks() > 0) |
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504 WatcherThread::stop(); |
0 | 505 |
506 // Print statistics gathered (profiling ...) | |
507 if (Arguments::has_profile()) { | |
508 FlatProfiler::disengage(); | |
509 FlatProfiler::print(10); | |
510 } | |
511 | |
512 // shut down the StatSampler task | |
513 StatSampler::disengage(); | |
514 StatSampler::destroy(); | |
515 | |
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516 // We do not need to explicitly stop concurrent GC threads because the |
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517 // JVM will be taken down at a safepoint when such threads are inactive -- |
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518 // except for some concurrent G1 threads, see (comment in) |
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519 // Threads::destroy_vm(). |
0 | 520 |
521 // Print GC/heap related information. | |
522 if (PrintGCDetails) { | |
523 Universe::print(); | |
524 AdaptiveSizePolicyOutput(0); | |
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525 if (Verbose) { |
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526 ClassLoaderDataGraph::dump_on(gclog_or_tty); |
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527 } |
0 | 528 } |
529 | |
530 | |
531 if (Arguments::has_alloc_profile()) { | |
532 HandleMark hm; | |
533 // Do one last collection to enumerate all the objects | |
534 // allocated since the last one. | |
535 Universe::heap()->collect(GCCause::_allocation_profiler); | |
536 AllocationProfiler::disengage(); | |
537 AllocationProfiler::print(0); | |
538 } | |
539 | |
540 if (PrintBytecodeHistogram) { | |
541 BytecodeHistogram::print(); | |
542 } | |
543 | |
544 if (JvmtiExport::should_post_thread_life()) { | |
545 JvmtiExport::post_thread_end(thread); | |
546 } | |
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547 |
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548 EVENT_BEGIN(TraceEventThreadEnd, event); |
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549 EVENT_COMMIT(event, |
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550 EVENT_SET(event, javalangthread, java_lang_Thread::thread_id(thread->threadObj()))); |
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551 |
0 | 552 // Always call even when there are not JVMTI environments yet, since environments |
553 // may be attached late and JVMTI must track phases of VM execution | |
554 JvmtiExport::post_vm_death(); | |
555 Threads::shutdown_vm_agents(); | |
556 | |
557 // Terminate the signal thread | |
558 // Note: we don't wait until it actually dies. | |
559 os::terminate_signal_thread(); | |
560 | |
561 print_statistics(); | |
562 Universe::heap()->print_tracing_info(); | |
563 | |
564 { MutexLocker ml(BeforeExit_lock); | |
565 _before_exit_status = BEFORE_EXIT_DONE; | |
566 BeforeExit_lock->notify_all(); | |
567 } | |
568 | |
569 #undef BEFORE_EXIT_NOT_RUN | |
570 #undef BEFORE_EXIT_RUNNING | |
571 #undef BEFORE_EXIT_DONE | |
572 } | |
573 | |
574 void vm_exit(int code) { | |
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575 Thread* thread = ThreadLocalStorage::is_initialized() ? |
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576 ThreadLocalStorage::get_thread_slow() : NULL; |
0 | 577 if (thread == NULL) { |
578 // we have serious problems -- just exit | |
579 vm_direct_exit(code); | |
580 } | |
581 | |
582 if (VMThread::vm_thread() != NULL) { | |
583 // Fire off a VM_Exit operation to bring VM to a safepoint and exit | |
584 VM_Exit op(code); | |
585 if (thread->is_Java_thread()) | |
586 ((JavaThread*)thread)->set_thread_state(_thread_in_vm); | |
587 VMThread::execute(&op); | |
588 // should never reach here; but in case something wrong with VM Thread. | |
589 vm_direct_exit(code); | |
590 } else { | |
591 // VM thread is gone, just exit | |
592 vm_direct_exit(code); | |
593 } | |
594 ShouldNotReachHere(); | |
595 } | |
596 | |
597 void notify_vm_shutdown() { | |
598 // For now, just a dtrace probe. | |
4006 | 599 #ifndef USDT2 |
0 | 600 HS_DTRACE_PROBE(hotspot, vm__shutdown); |
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601 HS_DTRACE_WORKAROUND_TAIL_CALL_BUG(); |
4006 | 602 #else /* USDT2 */ |
603 HOTSPOT_VM_SHUTDOWN(); | |
604 #endif /* USDT2 */ | |
0 | 605 } |
606 | |
607 void vm_direct_exit(int code) { | |
608 notify_vm_shutdown(); | |
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609 os::wait_for_keypress_at_exit(); |
0 | 610 ::exit(code); |
611 } | |
612 | |
613 void vm_perform_shutdown_actions() { | |
614 // Warning: do not call 'exit_globals()' here. All threads are still running. | |
615 // Calling 'exit_globals()' will disable thread-local-storage and cause all | |
616 // kinds of assertions to trigger in debug mode. | |
617 if (is_init_completed()) { | |
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618 Thread* thread = ThreadLocalStorage::is_initialized() ? |
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619 ThreadLocalStorage::get_thread_slow() : NULL; |
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620 if (thread != NULL && thread->is_Java_thread()) { |
0 | 621 // We are leaving the VM, set state to native (in case any OS exit |
622 // handlers call back to the VM) | |
623 JavaThread* jt = (JavaThread*)thread; | |
624 // Must always be walkable or have no last_Java_frame when in | |
625 // thread_in_native | |
626 jt->frame_anchor()->make_walkable(jt); | |
627 jt->set_thread_state(_thread_in_native); | |
628 } | |
629 } | |
630 notify_vm_shutdown(); | |
631 } | |
632 | |
633 void vm_shutdown() | |
634 { | |
635 vm_perform_shutdown_actions(); | |
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636 os::wait_for_keypress_at_exit(); |
0 | 637 os::shutdown(); |
638 } | |
639 | |
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640 void vm_abort(bool dump_core) { |
0 | 641 vm_perform_shutdown_actions(); |
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642 os::wait_for_keypress_at_exit(); |
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643 os::abort(dump_core); |
0 | 644 ShouldNotReachHere(); |
645 } | |
646 | |
647 void vm_notify_during_shutdown(const char* error, const char* message) { | |
648 if (error != NULL) { | |
649 tty->print_cr("Error occurred during initialization of VM"); | |
650 tty->print("%s", error); | |
651 if (message != NULL) { | |
652 tty->print_cr(": %s", message); | |
653 } | |
654 else { | |
655 tty->cr(); | |
656 } | |
657 } | |
658 if (ShowMessageBoxOnError && WizardMode) { | |
659 fatal("Error occurred during initialization of VM"); | |
660 } | |
661 } | |
662 | |
663 void vm_exit_during_initialization(Handle exception) { | |
664 tty->print_cr("Error occurred during initialization of VM"); | |
665 // If there are exceptions on this thread it must be cleared | |
666 // first and here. Any future calls to EXCEPTION_MARK requires | |
667 // that no pending exceptions exist. | |
668 Thread *THREAD = Thread::current(); | |
669 if (HAS_PENDING_EXCEPTION) { | |
670 CLEAR_PENDING_EXCEPTION; | |
671 } | |
672 java_lang_Throwable::print(exception, tty); | |
673 tty->cr(); | |
674 java_lang_Throwable::print_stack_trace(exception(), tty); | |
675 tty->cr(); | |
676 vm_notify_during_shutdown(NULL, NULL); | |
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677 |
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678 // Failure during initialization, we don't want to dump core |
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679 vm_abort(false); |
0 | 680 } |
681 | |
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682 void vm_exit_during_initialization(Symbol* ex, const char* message) { |
0 | 683 ResourceMark rm; |
684 vm_notify_during_shutdown(ex->as_C_string(), message); | |
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685 |
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686 // Failure during initialization, we don't want to dump core |
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687 vm_abort(false); |
0 | 688 } |
689 | |
690 void vm_exit_during_initialization(const char* error, const char* message) { | |
691 vm_notify_during_shutdown(error, message); | |
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692 |
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693 // Failure during initialization, we don't want to dump core |
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694 vm_abort(false); |
0 | 695 } |
696 | |
697 void vm_shutdown_during_initialization(const char* error, const char* message) { | |
698 vm_notify_during_shutdown(error, message); | |
699 vm_shutdown(); | |
700 } | |
701 | |
242 | 702 JDK_Version JDK_Version::_current; |
6181 | 703 const char* JDK_Version::_runtime_name; |
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704 const char* JDK_Version::_runtime_version; |
0 | 705 |
706 void JDK_Version::initialize() { | |
242 | 707 jdk_version_info info; |
708 assert(!_current.is_valid(), "Don't initialize twice"); | |
709 | |
0 | 710 void *lib_handle = os::native_java_library(); |
242 | 711 jdk_version_info_fn_t func = CAST_TO_FN_PTR(jdk_version_info_fn_t, |
712 os::dll_lookup(lib_handle, "JDK_GetVersionInfo0")); | |
0 | 713 |
714 if (func == NULL) { | |
715 // JDK older than 1.6 | |
242 | 716 _current._partially_initialized = true; |
717 } else { | |
718 (*func)(&info, sizeof(info)); | |
0 | 719 |
242 | 720 int major = JDK_VERSION_MAJOR(info.jdk_version); |
721 int minor = JDK_VERSION_MINOR(info.jdk_version); | |
722 int micro = JDK_VERSION_MICRO(info.jdk_version); | |
723 int build = JDK_VERSION_BUILD(info.jdk_version); | |
724 if (major == 1 && minor > 4) { | |
725 // We represent "1.5.0" as "5.0", but 1.4.2 as itself. | |
726 major = minor; | |
727 minor = micro; | |
728 micro = 0; | |
729 } | |
730 _current = JDK_Version(major, minor, micro, info.update_version, | |
731 info.special_update_version, build, | |
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732 info.thread_park_blocker == 1, |
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733 info.post_vm_init_hook_enabled == 1, |
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734 info.pending_list_uses_discovered_field == 1); |
0 | 735 } |
242 | 736 } |
737 | |
738 void JDK_Version::fully_initialize( | |
739 uint8_t major, uint8_t minor, uint8_t micro, uint8_t update) { | |
740 // This is only called when current is less than 1.6 and we've gotten | |
741 // far enough in the initialization to determine the exact version. | |
742 assert(major < 6, "not needed for JDK version >= 6"); | |
743 assert(is_partially_initialized(), "must not initialize"); | |
744 if (major < 5) { | |
745 // JDK verison sequence: 1.2.x, 1.3.x, 1.4.x, 5.0.x, 6.0.x, etc. | |
746 micro = minor; | |
747 minor = major; | |
748 major = 1; | |
0 | 749 } |
242 | 750 _current = JDK_Version(major, minor, micro, update); |
0 | 751 } |
752 | |
753 void JDK_Version_init() { | |
754 JDK_Version::initialize(); | |
755 } | |
242 | 756 |
757 static int64_t encode_jdk_version(const JDK_Version& v) { | |
758 return | |
759 ((int64_t)v.major_version() << (BitsPerByte * 5)) | | |
760 ((int64_t)v.minor_version() << (BitsPerByte * 4)) | | |
761 ((int64_t)v.micro_version() << (BitsPerByte * 3)) | | |
762 ((int64_t)v.update_version() << (BitsPerByte * 2)) | | |
763 ((int64_t)v.special_update_version() << (BitsPerByte * 1)) | | |
764 ((int64_t)v.build_number() << (BitsPerByte * 0)); | |
765 } | |
766 | |
767 int JDK_Version::compare(const JDK_Version& other) const { | |
768 assert(is_valid() && other.is_valid(), "Invalid version (uninitialized?)"); | |
769 if (!is_partially_initialized() && other.is_partially_initialized()) { | |
770 return -(other.compare(*this)); // flip the comparators | |
771 } | |
772 assert(!other.is_partially_initialized(), "Not initialized yet"); | |
773 if (is_partially_initialized()) { | |
774 assert(other.major_version() >= 6, | |
775 "Invalid JDK version comparison during initialization"); | |
776 return -1; | |
777 } else { | |
778 uint64_t e = encode_jdk_version(*this); | |
779 uint64_t o = encode_jdk_version(other); | |
780 return (e > o) ? 1 : ((e == o) ? 0 : -1); | |
781 } | |
782 } | |
783 | |
784 void JDK_Version::to_string(char* buffer, size_t buflen) const { | |
785 size_t index = 0; | |
786 if (!is_valid()) { | |
787 jio_snprintf(buffer, buflen, "%s", "(uninitialized)"); | |
788 } else if (is_partially_initialized()) { | |
789 jio_snprintf(buffer, buflen, "%s", "(uninitialized) pre-1.6.0"); | |
790 } else { | |
791 index += jio_snprintf( | |
792 &buffer[index], buflen - index, "%d.%d", _major, _minor); | |
793 if (_micro > 0) { | |
794 index += jio_snprintf(&buffer[index], buflen - index, ".%d", _micro); | |
795 } | |
796 if (_update > 0) { | |
797 index += jio_snprintf(&buffer[index], buflen - index, "_%02d", _update); | |
798 } | |
799 if (_special > 0) { | |
800 index += jio_snprintf(&buffer[index], buflen - index, "%c", _special); | |
801 } | |
802 if (_build > 0) { | |
803 index += jio_snprintf(&buffer[index], buflen - index, "-b%02d", _build); | |
804 } | |
805 } | |
806 } |