Mercurial > hg > truffle
annotate src/share/vm/runtime/java.cpp @ 9093:cd22923e7ca7
removed unnecessary code
author | Doug Simon <doug.simon@oracle.com> |
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date | Fri, 12 Apr 2013 21:35:27 +0200 |
parents | 5977a55503e9 |
children | 197426668a5d |
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" | |
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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" |
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66 #include "trace/traceEventTypes.hpp" |
1972 | 67 #include "utilities/dtrace.hpp" |
68 #include "utilities/globalDefinitions.hpp" | |
69 #include "utilities/histogram.hpp" | |
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70 #include "utilities/macros.hpp" |
1972 | 71 #include "utilities/vmError.hpp" |
72 #ifdef TARGET_ARCH_x86 | |
73 # include "vm_version_x86.hpp" | |
74 #endif | |
75 #ifdef TARGET_ARCH_sparc | |
76 # include "vm_version_sparc.hpp" | |
77 #endif | |
78 #ifdef TARGET_ARCH_zero | |
79 # include "vm_version_zero.hpp" | |
80 #endif | |
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81 #ifdef TARGET_ARCH_arm |
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82 # include "vm_version_arm.hpp" |
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83 #endif |
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84 #ifdef TARGET_ARCH_ppc |
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85 # include "vm_version_ppc.hpp" |
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86 #endif |
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87 #if INCLUDE_ALL_GCS |
1972 | 88 #include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepThread.hpp" |
89 #include "gc_implementation/parallelScavenge/psScavenge.hpp" | |
90 #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp" | |
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91 #endif // INCLUDE_ALL_GCS |
1972 | 92 #ifdef COMPILER1 |
93 #include "c1/c1_Compiler.hpp" | |
94 #include "c1/c1_Runtime1.hpp" | |
95 #endif | |
96 #ifdef COMPILER2 | |
97 #include "code/compiledIC.hpp" | |
98 #include "compiler/methodLiveness.hpp" | |
99 #include "opto/compile.hpp" | |
100 #include "opto/indexSet.hpp" | |
101 #include "opto/runtime.hpp" | |
102 #endif | |
0 | 103 |
4006 | 104 #ifndef USDT2 |
0 | 105 HS_DTRACE_PROBE_DECL(hotspot, vm__shutdown); |
4006 | 106 #endif /* !USDT2 */ |
0 | 107 |
108 #ifndef PRODUCT | |
109 | |
110 // Statistics printing (method invocation histogram) | |
111 | |
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112 GrowableArray<Method*>* collected_invoked_methods; |
0 | 113 |
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114 void collect_invoked_methods(Method* m) { |
0 | 115 if (m->invocation_count() + m->compiled_invocation_count() >= 1 ) { |
116 collected_invoked_methods->push(m); | |
117 } | |
118 } | |
119 | |
120 | |
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121 GrowableArray<Method*>* collected_profiled_methods; |
0 | 122 |
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123 void collect_profiled_methods(Method* m) { |
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124 Thread* thread = Thread::current(); |
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125 // This HandleMark prevents a huge amount of handles from being added |
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126 // to the metadata_handles() array on the thread. |
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127 HandleMark hm(thread); |
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128 methodHandle mh(thread, m); |
0 | 129 if ((m->method_data() != NULL) && |
130 (PrintMethodData || CompilerOracle::should_print(mh))) { | |
131 collected_profiled_methods->push(m); | |
132 } | |
133 } | |
134 | |
135 | |
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136 int compare_methods(Method** a, Method** b) { |
0 | 137 // %%% there can be 32-bit overflow here |
138 return ((*b)->invocation_count() + (*b)->compiled_invocation_count()) | |
139 - ((*a)->invocation_count() + (*a)->compiled_invocation_count()); | |
140 } | |
141 | |
142 | |
143 void print_method_invocation_histogram() { | |
144 ResourceMark rm; | |
145 HandleMark hm; | |
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146 collected_invoked_methods = new GrowableArray<Method*>(1024); |
0 | 147 SystemDictionary::methods_do(collect_invoked_methods); |
148 collected_invoked_methods->sort(&compare_methods); | |
149 // | |
150 tty->cr(); | |
151 tty->print_cr("Histogram Over MethodOop Invocation Counters (cutoff = %d):", MethodHistogramCutoff); | |
152 tty->cr(); | |
153 tty->print_cr("____Count_(I+C)____Method________________________Module_________________"); | |
154 unsigned total = 0, int_total = 0, comp_total = 0, static_total = 0, final_total = 0, | |
155 synch_total = 0, nativ_total = 0, acces_total = 0; | |
156 for (int index = 0; index < collected_invoked_methods->length(); index++) { | |
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157 Method* m = collected_invoked_methods->at(index); |
0 | 158 int c = m->invocation_count() + m->compiled_invocation_count(); |
159 if (c >= MethodHistogramCutoff) m->print_invocation_count(); | |
160 int_total += m->invocation_count(); | |
161 comp_total += m->compiled_invocation_count(); | |
162 if (m->is_final()) final_total += c; | |
163 if (m->is_static()) static_total += c; | |
164 if (m->is_synchronized()) synch_total += c; | |
165 if (m->is_native()) nativ_total += c; | |
166 if (m->is_accessor()) acces_total += c; | |
167 } | |
168 tty->cr(); | |
169 total = int_total + comp_total; | |
170 tty->print_cr("Invocations summary:"); | |
171 tty->print_cr("\t%9d (%4.1f%%) interpreted", int_total, 100.0 * int_total / total); | |
172 tty->print_cr("\t%9d (%4.1f%%) compiled", comp_total, 100.0 * comp_total / total); | |
173 tty->print_cr("\t%9d (100%%) total", total); | |
174 tty->print_cr("\t%9d (%4.1f%%) synchronized", synch_total, 100.0 * synch_total / total); | |
175 tty->print_cr("\t%9d (%4.1f%%) final", final_total, 100.0 * final_total / total); | |
176 tty->print_cr("\t%9d (%4.1f%%) static", static_total, 100.0 * static_total / total); | |
177 tty->print_cr("\t%9d (%4.1f%%) native", nativ_total, 100.0 * nativ_total / total); | |
178 tty->print_cr("\t%9d (%4.1f%%) accessor", acces_total, 100.0 * acces_total / total); | |
179 tty->cr(); | |
180 SharedRuntime::print_call_statistics(comp_total); | |
181 } | |
182 | |
183 void print_method_profiling_data() { | |
184 ResourceMark rm; | |
185 HandleMark hm; | |
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186 collected_profiled_methods = new GrowableArray<Method*>(1024); |
0 | 187 SystemDictionary::methods_do(collect_profiled_methods); |
188 collected_profiled_methods->sort(&compare_methods); | |
189 | |
190 int count = collected_profiled_methods->length(); | |
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(); | |
198 tty->cr(); | |
199 m->print_codes(); | |
200 } | |
201 tty->print_cr("------------------------------------------------------------------------"); | |
202 } | |
203 } | |
204 | |
205 void print_bytecode_count() { | |
206 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) { | |
207 tty->print_cr("[BytecodeCounter::counter_value = %d]", BytecodeCounter::counter_value()); | |
208 } | |
209 } | |
210 | |
211 AllocStats alloc_stats; | |
212 | |
213 | |
214 | |
215 // General statistics printing (profiling ...) | |
216 | |
217 void print_statistics() { | |
218 | |
219 #ifdef ASSERT | |
220 | |
221 if (CountRuntimeCalls) { | |
222 extern Histogram *RuntimeHistogram; | |
223 RuntimeHistogram->print(); | |
224 } | |
225 | |
226 if (CountJNICalls) { | |
227 extern Histogram *JNIHistogram; | |
228 JNIHistogram->print(); | |
229 } | |
230 | |
231 if (CountJVMCalls) { | |
232 extern Histogram *JVMHistogram; | |
233 JVMHistogram->print(); | |
234 } | |
235 | |
236 #endif | |
237 | |
238 if (MemProfiling) { | |
239 MemProfiler::disengage(); | |
240 } | |
241 | |
242 if (CITime) { | |
243 CompileBroker::print_times(); | |
244 } | |
245 | |
246 #ifdef COMPILER1 | |
247 if ((PrintC1Statistics || LogVMOutput || LogCompilation) && UseCompiler) { | |
248 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintC1Statistics); | |
249 Runtime1::print_statistics(); | |
250 Deoptimization::print_statistics(); | |
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251 SharedRuntime::print_statistics(); |
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252 nmethod::print_statistics(); |
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253 } |
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254 #endif /* COMPILER1 */ |
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255 |
0 | 256 #ifdef COMPILER2 |
257 if ((PrintOptoStatistics || LogVMOutput || LogCompilation) && UseCompiler) { | |
258 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintOptoStatistics); | |
259 Compile::print_statistics(); | |
260 #ifndef COMPILER1 | |
261 Deoptimization::print_statistics(); | |
262 nmethod::print_statistics(); | |
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263 SharedRuntime::print_statistics(); |
0 | 264 #endif //COMPILER1 |
265 os::print_statistics(); | |
266 } | |
267 | |
268 if (PrintLockStatistics || PrintPreciseBiasedLockingStatistics) { | |
269 OptoRuntime::print_named_counters(); | |
270 } | |
271 | |
272 if (TimeLivenessAnalysis) { | |
273 MethodLiveness::print_times(); | |
274 } | |
275 #ifdef ASSERT | |
276 if (CollectIndexSetStatistics) { | |
277 IndexSet::print_statistics(); | |
278 } | |
279 #endif // ASSERT | |
280 #endif // COMPILER2 | |
281 if (CountCompiledCalls) { | |
282 print_method_invocation_histogram(); | |
283 } | |
1918 | 284 if (ProfileInterpreter COMPILER1_PRESENT(|| C1UpdateMethodData)) { |
0 | 285 print_method_profiling_data(); |
286 } | |
287 if (TimeCompiler) { | |
288 COMPILER2_PRESENT(Compile::print_timers();) | |
289 } | |
290 if (TimeCompilationPolicy) { | |
291 CompilationPolicy::policy()->print_time(); | |
292 } | |
293 if (TimeOopMap) { | |
294 GenerateOopMap::print_time(); | |
295 } | |
296 if (ProfilerCheckIntervals) { | |
297 PeriodicTask::print_intervals(); | |
298 } | |
299 if (PrintSymbolTableSizeHistogram) { | |
300 SymbolTable::print_histogram(); | |
301 } | |
302 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) { | |
303 BytecodeCounter::print(); | |
304 } | |
305 if (PrintBytecodePairHistogram) { | |
306 BytecodePairHistogram::print(); | |
307 } | |
308 | |
309 if (PrintCodeCache) { | |
310 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
311 CodeCache::print(); | |
312 } | |
313 | |
314 if (PrintCodeCache2) { | |
315 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
316 CodeCache::print_internals(); | |
317 } | |
318 | |
319 if (PrintClassStatistics) { | |
320 SystemDictionary::print_class_statistics(); | |
321 } | |
322 if (PrintMethodStatistics) { | |
323 SystemDictionary::print_method_statistics(); | |
324 } | |
325 | |
326 if (PrintVtableStats) { | |
327 klassVtable::print_statistics(); | |
328 klassItable::print_statistics(); | |
329 } | |
330 if (VerifyOops) { | |
331 tty->print_cr("+VerifyOops count: %d", StubRoutines::verify_oop_count()); | |
332 } | |
333 | |
334 print_bytecode_count(); | |
2250 | 335 if (PrintMallocStatistics) { |
0 | 336 tty->print("allocation stats: "); |
337 alloc_stats.print(); | |
338 tty->cr(); | |
339 } | |
340 | |
341 if (PrintSystemDictionaryAtExit) { | |
342 SystemDictionary::print(); | |
343 } | |
344 | |
345 if (PrintBiasedLockingStatistics) { | |
346 BiasedLocking::print_counters(); | |
347 } | |
348 | |
349 #ifdef ENABLE_ZAP_DEAD_LOCALS | |
350 #ifdef COMPILER2 | |
351 if (ZapDeadCompiledLocals) { | |
352 tty->print_cr("Compile::CompiledZap_count = %d", Compile::CompiledZap_count); | |
353 tty->print_cr("OptoRuntime::ZapDeadCompiledLocals_count = %d", OptoRuntime::ZapDeadCompiledLocals_count); | |
354 } | |
355 #endif // COMPILER2 | |
356 #endif // ENABLE_ZAP_DEAD_LOCALS | |
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357 // Native memory tracking data |
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358 if (PrintNMTStatistics) { |
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359 if (MemTracker::is_on()) { |
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360 BaselineTTYOutputer outputer(tty); |
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361 MemTracker::print_memory_usage(outputer, K, false); |
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362 } else { |
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363 tty->print_cr(MemTracker::reason()); |
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364 } |
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365 } |
0 | 366 } |
367 | |
368 #else // PRODUCT MODE STATISTICS | |
369 | |
370 void print_statistics() { | |
371 | |
372 if (CITime) { | |
373 CompileBroker::print_times(); | |
374 } | |
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375 |
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376 if (PrintCodeCache) { |
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377 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
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378 CodeCache::print(); |
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379 } |
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380 |
0 | 381 #ifdef COMPILER2 |
382 if (PrintPreciseBiasedLockingStatistics) { | |
383 OptoRuntime::print_named_counters(); | |
384 } | |
385 #endif | |
386 if (PrintBiasedLockingStatistics) { | |
387 BiasedLocking::print_counters(); | |
388 } | |
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389 |
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390 // Native memory tracking data |
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391 if (PrintNMTStatistics) { |
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392 if (MemTracker::is_on()) { |
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393 BaselineTTYOutputer outputer(tty); |
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394 MemTracker::print_memory_usage(outputer, K, false); |
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395 } else { |
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396 tty->print_cr(MemTracker::reason()); |
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397 } |
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398 } |
0 | 399 } |
400 | |
401 #endif | |
402 | |
403 | |
404 // Helper class for registering on_exit calls through JVM_OnExit | |
405 | |
406 extern "C" { | |
407 typedef void (*__exit_proc)(void); | |
408 } | |
409 | |
6197 | 410 class ExitProc : public CHeapObj<mtInternal> { |
0 | 411 private: |
412 __exit_proc _proc; | |
413 // void (*_proc)(void); | |
414 ExitProc* _next; | |
415 public: | |
416 // ExitProc(void (*proc)(void)) { | |
417 ExitProc(__exit_proc proc) { | |
418 _proc = proc; | |
419 _next = NULL; | |
420 } | |
421 void evaluate() { _proc(); } | |
422 ExitProc* next() const { return _next; } | |
423 void set_next(ExitProc* next) { _next = next; } | |
424 }; | |
425 | |
426 | |
427 // Linked list of registered on_exit procedures | |
428 | |
429 static ExitProc* exit_procs = NULL; | |
430 | |
431 | |
432 extern "C" { | |
433 void register_on_exit_function(void (*func)(void)) { | |
434 ExitProc *entry = new ExitProc(func); | |
435 // Classic vm does not throw an exception in case the allocation failed, | |
436 if (entry != NULL) { | |
437 entry->set_next(exit_procs); | |
438 exit_procs = entry; | |
439 } | |
440 } | |
441 } | |
442 | |
443 // Note: before_exit() can be executed only once, if more than one threads | |
444 // are trying to shutdown the VM at the same time, only one thread | |
445 // can run before_exit() and all other threads must wait. | |
446 void before_exit(JavaThread * thread) { | |
447 #define BEFORE_EXIT_NOT_RUN 0 | |
448 #define BEFORE_EXIT_RUNNING 1 | |
449 #define BEFORE_EXIT_DONE 2 | |
450 static jint volatile _before_exit_status = BEFORE_EXIT_NOT_RUN; | |
451 | |
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452 #ifdef GRAAL |
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453 GraalCompiler::instance()->exit(); |
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454 #endif |
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455 |
0 | 456 // Note: don't use a Mutex to guard the entire before_exit(), as |
457 // JVMTI post_thread_end_event and post_vm_death_event will run native code. | |
458 // A CAS or OSMutex would work just fine but then we need to manipulate | |
459 // thread state for Safepoint. Here we use Monitor wait() and notify_all() | |
460 // for synchronization. | |
461 { MutexLocker ml(BeforeExit_lock); | |
462 switch (_before_exit_status) { | |
463 case BEFORE_EXIT_NOT_RUN: | |
464 _before_exit_status = BEFORE_EXIT_RUNNING; | |
465 break; | |
466 case BEFORE_EXIT_RUNNING: | |
467 while (_before_exit_status == BEFORE_EXIT_RUNNING) { | |
468 BeforeExit_lock->wait(); | |
469 } | |
470 assert(_before_exit_status == BEFORE_EXIT_DONE, "invalid state"); | |
471 return; | |
472 case BEFORE_EXIT_DONE: | |
473 return; | |
474 } | |
475 } | |
476 | |
477 // The only difference between this and Win32's _onexit procs is that | |
478 // this version is invoked before any threads get killed. | |
479 ExitProc* current = exit_procs; | |
480 while (current != NULL) { | |
481 ExitProc* next = current->next(); | |
482 current->evaluate(); | |
483 delete current; | |
484 current = next; | |
485 } | |
486 | |
487 // Hang forever on exit if we're reporting an error. | |
488 if (ShowMessageBoxOnError && is_error_reported()) { | |
489 os::infinite_sleep(); | |
490 } | |
491 | |
492 // Terminate watcher thread - must before disenrolling any periodic task | |
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493 if (PeriodicTask::num_tasks() > 0) |
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494 WatcherThread::stop(); |
0 | 495 |
496 // Print statistics gathered (profiling ...) | |
497 if (Arguments::has_profile()) { | |
498 FlatProfiler::disengage(); | |
499 FlatProfiler::print(10); | |
500 } | |
501 | |
502 // shut down the StatSampler task | |
503 StatSampler::disengage(); | |
504 StatSampler::destroy(); | |
505 | |
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506 // We do not need to explicitly stop concurrent GC threads because the |
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507 // JVM will be taken down at a safepoint when such threads are inactive -- |
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508 // except for some concurrent G1 threads, see (comment in) |
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509 // Threads::destroy_vm(). |
0 | 510 |
511 // Print GC/heap related information. | |
512 if (PrintGCDetails) { | |
513 Universe::print(); | |
514 AdaptiveSizePolicyOutput(0); | |
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515 if (Verbose) { |
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516 ClassLoaderDataGraph::dump_on(gclog_or_tty); |
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517 } |
0 | 518 } |
519 | |
520 | |
521 if (Arguments::has_alloc_profile()) { | |
522 HandleMark hm; | |
523 // Do one last collection to enumerate all the objects | |
524 // allocated since the last one. | |
525 Universe::heap()->collect(GCCause::_allocation_profiler); | |
526 AllocationProfiler::disengage(); | |
527 AllocationProfiler::print(0); | |
528 } | |
529 | |
530 if (PrintBytecodeHistogram) { | |
531 BytecodeHistogram::print(); | |
532 } | |
533 | |
534 if (JvmtiExport::should_post_thread_life()) { | |
535 JvmtiExport::post_thread_end(thread); | |
536 } | |
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537 |
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538 EVENT_BEGIN(TraceEventThreadEnd, event); |
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539 EVENT_COMMIT(event, |
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540 EVENT_SET(event, javalangthread, java_lang_Thread::thread_id(thread->threadObj()))); |
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541 |
0 | 542 // Always call even when there are not JVMTI environments yet, since environments |
543 // may be attached late and JVMTI must track phases of VM execution | |
544 JvmtiExport::post_vm_death(); | |
545 Threads::shutdown_vm_agents(); | |
546 | |
547 // Terminate the signal thread | |
548 // Note: we don't wait until it actually dies. | |
549 os::terminate_signal_thread(); | |
550 | |
551 print_statistics(); | |
552 Universe::heap()->print_tracing_info(); | |
553 | |
554 { MutexLocker ml(BeforeExit_lock); | |
555 _before_exit_status = BEFORE_EXIT_DONE; | |
556 BeforeExit_lock->notify_all(); | |
557 } | |
558 | |
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559 // Shutdown NMT before exit. Otherwise, |
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560 // it will run into trouble when system destroys static variables. |
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561 MemTracker::shutdown(MemTracker::NMT_normal); |
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562 |
0 | 563 #undef BEFORE_EXIT_NOT_RUN |
564 #undef BEFORE_EXIT_RUNNING | |
565 #undef BEFORE_EXIT_DONE | |
566 } | |
567 | |
568 void vm_exit(int code) { | |
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569 Thread* thread = ThreadLocalStorage::is_initialized() ? |
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570 ThreadLocalStorage::get_thread_slow() : NULL; |
0 | 571 if (thread == NULL) { |
572 // we have serious problems -- just exit | |
573 vm_direct_exit(code); | |
574 } | |
575 | |
576 if (VMThread::vm_thread() != NULL) { | |
577 // Fire off a VM_Exit operation to bring VM to a safepoint and exit | |
578 VM_Exit op(code); | |
579 if (thread->is_Java_thread()) | |
580 ((JavaThread*)thread)->set_thread_state(_thread_in_vm); | |
581 VMThread::execute(&op); | |
582 // should never reach here; but in case something wrong with VM Thread. | |
583 vm_direct_exit(code); | |
584 } else { | |
585 // VM thread is gone, just exit | |
586 vm_direct_exit(code); | |
587 } | |
588 ShouldNotReachHere(); | |
589 } | |
590 | |
591 void notify_vm_shutdown() { | |
592 // For now, just a dtrace probe. | |
4006 | 593 #ifndef USDT2 |
0 | 594 HS_DTRACE_PROBE(hotspot, vm__shutdown); |
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595 HS_DTRACE_WORKAROUND_TAIL_CALL_BUG(); |
4006 | 596 #else /* USDT2 */ |
597 HOTSPOT_VM_SHUTDOWN(); | |
598 #endif /* USDT2 */ | |
0 | 599 } |
600 | |
601 void vm_direct_exit(int code) { | |
602 notify_vm_shutdown(); | |
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603 os::wait_for_keypress_at_exit(); |
0 | 604 ::exit(code); |
605 } | |
606 | |
607 void vm_perform_shutdown_actions() { | |
608 // Warning: do not call 'exit_globals()' here. All threads are still running. | |
609 // Calling 'exit_globals()' will disable thread-local-storage and cause all | |
610 // kinds of assertions to trigger in debug mode. | |
611 if (is_init_completed()) { | |
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612 Thread* thread = ThreadLocalStorage::is_initialized() ? |
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613 ThreadLocalStorage::get_thread_slow() : NULL; |
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614 if (thread != NULL && thread->is_Java_thread()) { |
0 | 615 // We are leaving the VM, set state to native (in case any OS exit |
616 // handlers call back to the VM) | |
617 JavaThread* jt = (JavaThread*)thread; | |
618 // Must always be walkable or have no last_Java_frame when in | |
619 // thread_in_native | |
620 jt->frame_anchor()->make_walkable(jt); | |
621 jt->set_thread_state(_thread_in_native); | |
622 } | |
623 } | |
624 notify_vm_shutdown(); | |
625 } | |
626 | |
627 void vm_shutdown() | |
628 { | |
629 vm_perform_shutdown_actions(); | |
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630 os::wait_for_keypress_at_exit(); |
0 | 631 os::shutdown(); |
632 } | |
633 | |
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634 void vm_abort(bool dump_core) { |
0 | 635 vm_perform_shutdown_actions(); |
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636 os::wait_for_keypress_at_exit(); |
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637 os::abort(dump_core); |
0 | 638 ShouldNotReachHere(); |
639 } | |
640 | |
641 void vm_notify_during_shutdown(const char* error, const char* message) { | |
642 if (error != NULL) { | |
643 tty->print_cr("Error occurred during initialization of VM"); | |
644 tty->print("%s", error); | |
645 if (message != NULL) { | |
646 tty->print_cr(": %s", message); | |
647 } | |
648 else { | |
649 tty->cr(); | |
650 } | |
651 } | |
652 if (ShowMessageBoxOnError && WizardMode) { | |
653 fatal("Error occurred during initialization of VM"); | |
654 } | |
655 } | |
656 | |
657 void vm_exit_during_initialization(Handle exception) { | |
658 tty->print_cr("Error occurred during initialization of VM"); | |
659 // If there are exceptions on this thread it must be cleared | |
660 // first and here. Any future calls to EXCEPTION_MARK requires | |
661 // that no pending exceptions exist. | |
662 Thread *THREAD = Thread::current(); | |
663 if (HAS_PENDING_EXCEPTION) { | |
664 CLEAR_PENDING_EXCEPTION; | |
665 } | |
666 java_lang_Throwable::print(exception, tty); | |
667 tty->cr(); | |
668 java_lang_Throwable::print_stack_trace(exception(), tty); | |
669 tty->cr(); | |
670 vm_notify_during_shutdown(NULL, NULL); | |
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671 |
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672 // Failure during initialization, we don't want to dump core |
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673 vm_abort(false); |
0 | 674 } |
675 | |
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676 void vm_exit_during_initialization(Symbol* ex, const char* message) { |
0 | 677 ResourceMark rm; |
678 vm_notify_during_shutdown(ex->as_C_string(), message); | |
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679 |
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680 // Failure during initialization, we don't want to dump core |
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681 vm_abort(false); |
0 | 682 } |
683 | |
684 void vm_exit_during_initialization(const char* error, const char* message) { | |
685 vm_notify_during_shutdown(error, message); | |
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686 |
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687 // Failure during initialization, we don't want to dump core |
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688 vm_abort(false); |
0 | 689 } |
690 | |
691 void vm_shutdown_during_initialization(const char* error, const char* message) { | |
692 vm_notify_during_shutdown(error, message); | |
693 vm_shutdown(); | |
694 } | |
695 | |
242 | 696 JDK_Version JDK_Version::_current; |
6181 | 697 const char* JDK_Version::_runtime_name; |
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698 const char* JDK_Version::_runtime_version; |
0 | 699 |
700 void JDK_Version::initialize() { | |
242 | 701 jdk_version_info info; |
702 assert(!_current.is_valid(), "Don't initialize twice"); | |
703 | |
0 | 704 void *lib_handle = os::native_java_library(); |
242 | 705 jdk_version_info_fn_t func = CAST_TO_FN_PTR(jdk_version_info_fn_t, |
706 os::dll_lookup(lib_handle, "JDK_GetVersionInfo0")); | |
0 | 707 |
708 if (func == NULL) { | |
709 // JDK older than 1.6 | |
242 | 710 _current._partially_initialized = true; |
711 } else { | |
712 (*func)(&info, sizeof(info)); | |
0 | 713 |
242 | 714 int major = JDK_VERSION_MAJOR(info.jdk_version); |
715 int minor = JDK_VERSION_MINOR(info.jdk_version); | |
716 int micro = JDK_VERSION_MICRO(info.jdk_version); | |
717 int build = JDK_VERSION_BUILD(info.jdk_version); | |
718 if (major == 1 && minor > 4) { | |
719 // We represent "1.5.0" as "5.0", but 1.4.2 as itself. | |
720 major = minor; | |
721 minor = micro; | |
722 micro = 0; | |
723 } | |
724 _current = JDK_Version(major, minor, micro, info.update_version, | |
725 info.special_update_version, build, | |
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726 info.thread_park_blocker == 1, |
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727 info.post_vm_init_hook_enabled == 1, |
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728 info.pending_list_uses_discovered_field == 1); |
0 | 729 } |
242 | 730 } |
731 | |
732 void JDK_Version::fully_initialize( | |
733 uint8_t major, uint8_t minor, uint8_t micro, uint8_t update) { | |
734 // This is only called when current is less than 1.6 and we've gotten | |
735 // far enough in the initialization to determine the exact version. | |
736 assert(major < 6, "not needed for JDK version >= 6"); | |
737 assert(is_partially_initialized(), "must not initialize"); | |
738 if (major < 5) { | |
739 // JDK verison sequence: 1.2.x, 1.3.x, 1.4.x, 5.0.x, 6.0.x, etc. | |
740 micro = minor; | |
741 minor = major; | |
742 major = 1; | |
0 | 743 } |
242 | 744 _current = JDK_Version(major, minor, micro, update); |
0 | 745 } |
746 | |
747 void JDK_Version_init() { | |
748 JDK_Version::initialize(); | |
749 } | |
242 | 750 |
751 static int64_t encode_jdk_version(const JDK_Version& v) { | |
752 return | |
753 ((int64_t)v.major_version() << (BitsPerByte * 5)) | | |
754 ((int64_t)v.minor_version() << (BitsPerByte * 4)) | | |
755 ((int64_t)v.micro_version() << (BitsPerByte * 3)) | | |
756 ((int64_t)v.update_version() << (BitsPerByte * 2)) | | |
757 ((int64_t)v.special_update_version() << (BitsPerByte * 1)) | | |
758 ((int64_t)v.build_number() << (BitsPerByte * 0)); | |
759 } | |
760 | |
761 int JDK_Version::compare(const JDK_Version& other) const { | |
762 assert(is_valid() && other.is_valid(), "Invalid version (uninitialized?)"); | |
763 if (!is_partially_initialized() && other.is_partially_initialized()) { | |
764 return -(other.compare(*this)); // flip the comparators | |
765 } | |
766 assert(!other.is_partially_initialized(), "Not initialized yet"); | |
767 if (is_partially_initialized()) { | |
768 assert(other.major_version() >= 6, | |
769 "Invalid JDK version comparison during initialization"); | |
770 return -1; | |
771 } else { | |
772 uint64_t e = encode_jdk_version(*this); | |
773 uint64_t o = encode_jdk_version(other); | |
774 return (e > o) ? 1 : ((e == o) ? 0 : -1); | |
775 } | |
776 } | |
777 | |
778 void JDK_Version::to_string(char* buffer, size_t buflen) const { | |
779 size_t index = 0; | |
780 if (!is_valid()) { | |
781 jio_snprintf(buffer, buflen, "%s", "(uninitialized)"); | |
782 } else if (is_partially_initialized()) { | |
783 jio_snprintf(buffer, buflen, "%s", "(uninitialized) pre-1.6.0"); | |
784 } else { | |
785 index += jio_snprintf( | |
786 &buffer[index], buflen - index, "%d.%d", _major, _minor); | |
787 if (_micro > 0) { | |
788 index += jio_snprintf(&buffer[index], buflen - index, ".%d", _micro); | |
789 } | |
790 if (_update > 0) { | |
791 index += jio_snprintf(&buffer[index], buflen - index, "_%02d", _update); | |
792 } | |
793 if (_special > 0) { | |
794 index += jio_snprintf(&buffer[index], buflen - index, "%c", _special); | |
795 } | |
796 if (_build > 0) { | |
797 index += jio_snprintf(&buffer[index], buflen - index, "-b%02d", _build); | |
798 } | |
799 } | |
800 } |