Mercurial > hg > truffle
annotate src/share/vm/runtime/java.cpp @ 21195:a4b60873851b
LIRKind: add #merge().
author | Josef Eisl <josef.eisl@jku.at> |
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date | Thu, 23 Apr 2015 11:30:06 +0200 |
parents | 7848fc12602b |
children | be896a1983c0 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "classfile/classLoader.hpp" | |
27 #include "classfile/symbolTable.hpp" | |
28 #include "classfile/systemDictionary.hpp" | |
29 #include "code/codeCache.hpp" | |
30 #include "compiler/compileBroker.hpp" | |
31 #include "compiler/compilerOracle.hpp" | |
32 #include "interpreter/bytecodeHistogram.hpp" | |
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33 #ifdef GRAAL |
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34 #include "graal/graalCompiler.hpp" |
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35 #include "graal/graalRuntime.hpp" |
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36 #endif |
1972 | 37 #include "memory/genCollectedHeap.hpp" |
38 #include "memory/oopFactory.hpp" | |
39 #include "memory/universe.hpp" | |
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40 #include "oops/constantPool.hpp" |
1972 | 41 #include "oops/generateOopMap.hpp" |
42 #include "oops/instanceKlass.hpp" | |
43 #include "oops/instanceOop.hpp" | |
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44 #include "oops/method.hpp" |
1972 | 45 #include "oops/objArrayOop.hpp" |
46 #include "oops/oop.inline.hpp" | |
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47 #include "oops/symbol.hpp" |
1972 | 48 #include "prims/jvmtiExport.hpp" |
49 #include "runtime/arguments.hpp" | |
50 #include "runtime/biasedLocking.hpp" | |
51 #include "runtime/compilationPolicy.hpp" | |
52 #include "runtime/fprofiler.hpp" | |
53 #include "runtime/init.hpp" | |
54 #include "runtime/interfaceSupport.hpp" | |
55 #include "runtime/java.hpp" | |
56 #include "runtime/memprofiler.hpp" | |
57 #include "runtime/sharedRuntime.hpp" | |
58 #include "runtime/statSampler.hpp" | |
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59 #include "runtime/sweeper.hpp" |
1972 | 60 #include "runtime/task.hpp" |
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61 #include "runtime/thread.inline.hpp" |
1972 | 62 #include "runtime/timer.hpp" |
63 #include "runtime/vm_operations.hpp" | |
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64 #include "services/memTracker.hpp" |
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65 #include "trace/tracing.hpp" |
1972 | 66 #include "utilities/dtrace.hpp" |
67 #include "utilities/globalDefinitions.hpp" | |
68 #include "utilities/histogram.hpp" | |
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69 #include "utilities/macros.hpp" |
1972 | 70 #include "utilities/vmError.hpp" |
71 #ifdef TARGET_ARCH_x86 | |
72 # include "vm_version_x86.hpp" | |
73 #endif | |
74 #ifdef TARGET_ARCH_sparc | |
75 # include "vm_version_sparc.hpp" | |
76 #endif | |
77 #ifdef TARGET_ARCH_zero | |
78 # include "vm_version_zero.hpp" | |
79 #endif | |
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80 #ifdef TARGET_ARCH_arm |
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81 # include "vm_version_arm.hpp" |
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82 #endif |
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83 #ifdef TARGET_ARCH_ppc |
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84 # include "vm_version_ppc.hpp" |
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85 #endif |
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86 #if INCLUDE_ALL_GCS |
1972 | 87 #include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepThread.hpp" |
88 #include "gc_implementation/parallelScavenge/psScavenge.hpp" | |
89 #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp" | |
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90 #endif // INCLUDE_ALL_GCS |
1972 | 91 #ifdef COMPILER1 |
92 #include "c1/c1_Compiler.hpp" | |
93 #include "c1/c1_Runtime1.hpp" | |
94 #endif | |
95 #ifdef COMPILER2 | |
96 #include "code/compiledIC.hpp" | |
97 #include "compiler/methodLiveness.hpp" | |
98 #include "opto/compile.hpp" | |
99 #include "opto/indexSet.hpp" | |
100 #include "opto/runtime.hpp" | |
101 #endif | |
0 | 102 |
4006 | 103 #ifndef USDT2 |
0 | 104 HS_DTRACE_PROBE_DECL(hotspot, vm__shutdown); |
4006 | 105 #endif /* !USDT2 */ |
0 | 106 |
107 #ifndef PRODUCT | |
108 | |
109 // Statistics printing (method invocation histogram) | |
110 | |
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111 GrowableArray<Method*>* collected_invoked_methods; |
0 | 112 |
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113 void collect_invoked_methods(Method* m) { |
0 | 114 if (m->invocation_count() + m->compiled_invocation_count() >= 1 ) { |
115 collected_invoked_methods->push(m); | |
116 } | |
117 } | |
118 | |
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119 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC |
0 | 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(); | |
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191 int total_size = 0; |
0 | 192 if (count > 0) { |
193 for (int index = 0; index < count; index++) { | |
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194 Method* m = collected_profiled_methods->at(index); |
0 | 195 ttyLocker ttyl; |
196 tty->print_cr("------------------------------------------------------------------------"); | |
197 //m->print_name(tty); | |
198 m->print_invocation_count(); | |
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199 tty->print_cr(" mdo size: %d bytes", m->method_data()->size_in_bytes()); |
0 | 200 tty->cr(); |
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201 // Dump data on parameters if any |
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202 if (m->method_data() != NULL && m->method_data()->parameters_type_data() != NULL) { |
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203 tty->fill_to(2); |
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204 m->method_data()->parameters_type_data()->print_data_on(tty); |
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205 } |
0 | 206 m->print_codes(); |
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207 total_size += m->method_data()->size_in_bytes(); |
0 | 208 } |
209 tty->print_cr("------------------------------------------------------------------------"); | |
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210 tty->print_cr("Total MDO size: %d bytes", total_size); |
0 | 211 } |
212 } | |
213 | |
214 void print_bytecode_count() { | |
215 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) { | |
216 tty->print_cr("[BytecodeCounter::counter_value = %d]", BytecodeCounter::counter_value()); | |
217 } | |
218 } | |
219 | |
220 AllocStats alloc_stats; | |
221 | |
222 | |
223 | |
224 // General statistics printing (profiling ...) | |
225 void print_statistics() { | |
226 #ifdef ASSERT | |
227 | |
228 if (CountRuntimeCalls) { | |
229 extern Histogram *RuntimeHistogram; | |
230 RuntimeHistogram->print(); | |
231 } | |
232 | |
233 if (CountJNICalls) { | |
234 extern Histogram *JNIHistogram; | |
235 JNIHistogram->print(); | |
236 } | |
237 | |
238 if (CountJVMCalls) { | |
239 extern Histogram *JVMHistogram; | |
240 JVMHistogram->print(); | |
241 } | |
242 | |
243 #endif | |
244 | |
245 if (MemProfiling) { | |
246 MemProfiler::disengage(); | |
247 } | |
248 | |
249 if (CITime) { | |
250 CompileBroker::print_times(); | |
251 } | |
252 | |
253 #ifdef COMPILER1 | |
254 if ((PrintC1Statistics || LogVMOutput || LogCompilation) && UseCompiler) { | |
255 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintC1Statistics); | |
256 Runtime1::print_statistics(); | |
257 Deoptimization::print_statistics(); | |
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258 SharedRuntime::print_statistics(); |
0 | 259 } |
260 #endif /* COMPILER1 */ | |
261 | |
262 #ifdef COMPILER2 | |
263 if ((PrintOptoStatistics || LogVMOutput || LogCompilation) && UseCompiler) { | |
264 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintOptoStatistics); | |
265 Compile::print_statistics(); | |
266 #ifndef COMPILER1 | |
267 Deoptimization::print_statistics(); | |
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268 SharedRuntime::print_statistics(); |
0 | 269 #endif //COMPILER1 |
270 os::print_statistics(); | |
271 } | |
272 | |
17780 | 273 if (PrintLockStatistics || PrintPreciseBiasedLockingStatistics || PrintPreciseRTMLockingStatistics) { |
0 | 274 OptoRuntime::print_named_counters(); |
275 } | |
276 | |
277 if (TimeLivenessAnalysis) { | |
278 MethodLiveness::print_times(); | |
279 } | |
280 #ifdef ASSERT | |
281 if (CollectIndexSetStatistics) { | |
282 IndexSet::print_statistics(); | |
283 } | |
284 #endif // ASSERT | |
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285 #else |
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286 #ifdef GRALL |
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287 #ifndef COMPILER1 |
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288 if ((TraceDeoptimization || LogVMOutput || LogCompilation) && UseCompiler) { |
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289 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && TraceDeoptimization); |
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290 Deoptimization::print_statistics(); |
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291 SharedRuntime::print_statistics(); |
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292 } |
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293 #endif |
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294 #endif |
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295 #endif |
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296 |
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297 if (PrintNMethodStatistics) { |
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298 nmethod::print_statistics(); |
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299 } |
0 | 300 if (CountCompiledCalls) { |
301 print_method_invocation_histogram(); | |
302 } | |
1918 | 303 if (ProfileInterpreter COMPILER1_PRESENT(|| C1UpdateMethodData)) { |
0 | 304 print_method_profiling_data(); |
305 } | |
306 if (TimeCompiler) { | |
307 COMPILER2_PRESENT(Compile::print_timers();) | |
308 } | |
309 if (TimeCompilationPolicy) { | |
310 CompilationPolicy::policy()->print_time(); | |
311 } | |
312 if (TimeOopMap) { | |
313 GenerateOopMap::print_time(); | |
314 } | |
315 if (ProfilerCheckIntervals) { | |
316 PeriodicTask::print_intervals(); | |
317 } | |
318 if (PrintSymbolTableSizeHistogram) { | |
319 SymbolTable::print_histogram(); | |
320 } | |
321 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) { | |
322 BytecodeCounter::print(); | |
323 } | |
324 if (PrintBytecodePairHistogram) { | |
325 BytecodePairHistogram::print(); | |
326 } | |
327 | |
328 if (PrintCodeCache) { | |
329 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
330 CodeCache::print(); | |
331 } | |
332 | |
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333 if (PrintMethodFlushingStatistics) { |
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334 NMethodSweeper::print(); |
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335 } |
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336 |
0 | 337 if (PrintCodeCache2) { |
338 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
339 CodeCache::print_internals(); | |
340 } | |
341 | |
342 if (PrintClassStatistics) { | |
343 SystemDictionary::print_class_statistics(); | |
344 } | |
345 if (PrintMethodStatistics) { | |
346 SystemDictionary::print_method_statistics(); | |
347 } | |
348 | |
349 if (PrintVtableStats) { | |
350 klassVtable::print_statistics(); | |
351 klassItable::print_statistics(); | |
352 } | |
353 if (VerifyOops) { | |
354 tty->print_cr("+VerifyOops count: %d", StubRoutines::verify_oop_count()); | |
355 } | |
356 | |
357 print_bytecode_count(); | |
2250 | 358 if (PrintMallocStatistics) { |
0 | 359 tty->print("allocation stats: "); |
360 alloc_stats.print(); | |
361 tty->cr(); | |
362 } | |
363 | |
364 if (PrintSystemDictionaryAtExit) { | |
365 SystemDictionary::print(); | |
366 } | |
367 | |
368 if (PrintBiasedLockingStatistics) { | |
369 BiasedLocking::print_counters(); | |
370 } | |
371 | |
372 #ifdef ENABLE_ZAP_DEAD_LOCALS | |
373 #ifdef COMPILER2 | |
374 if (ZapDeadCompiledLocals) { | |
375 tty->print_cr("Compile::CompiledZap_count = %d", Compile::CompiledZap_count); | |
376 tty->print_cr("OptoRuntime::ZapDeadCompiledLocals_count = %d", OptoRuntime::ZapDeadCompiledLocals_count); | |
377 } | |
378 #endif // COMPILER2 | |
379 #endif // ENABLE_ZAP_DEAD_LOCALS | |
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380 // Native memory tracking data |
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381 if (PrintNMTStatistics) { |
20360 | 382 MemTracker::final_report(tty); |
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383 } |
0 | 384 } |
385 | |
386 #else // PRODUCT MODE STATISTICS | |
387 | |
388 void print_statistics() { | |
389 | |
390 if (CITime) { | |
391 CompileBroker::print_times(); | |
392 } | |
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393 |
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394 if (PrintCodeCache) { |
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395 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
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396 CodeCache::print(); |
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397 } |
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398 |
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399 if (PrintMethodFlushingStatistics) { |
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400 NMethodSweeper::print(); |
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401 } |
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402 |
0 | 403 #ifdef COMPILER2 |
17780 | 404 if (PrintPreciseBiasedLockingStatistics || PrintPreciseRTMLockingStatistics) { |
0 | 405 OptoRuntime::print_named_counters(); |
406 } | |
407 #endif | |
408 if (PrintBiasedLockingStatistics) { | |
409 BiasedLocking::print_counters(); | |
410 } | |
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411 if (PrintNMethodStatistics) { |
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412 nmethod::print_statistics(); |
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413 } |
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414 |
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415 // Native memory tracking data |
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416 if (PrintNMTStatistics) { |
20360 | 417 MemTracker::final_report(tty); |
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418 } |
0 | 419 } |
420 | |
421 #endif | |
422 | |
423 | |
424 // Helper class for registering on_exit calls through JVM_OnExit | |
425 | |
426 extern "C" { | |
427 typedef void (*__exit_proc)(void); | |
428 } | |
429 | |
6197 | 430 class ExitProc : public CHeapObj<mtInternal> { |
0 | 431 private: |
432 __exit_proc _proc; | |
433 // void (*_proc)(void); | |
434 ExitProc* _next; | |
435 public: | |
436 // ExitProc(void (*proc)(void)) { | |
437 ExitProc(__exit_proc proc) { | |
438 _proc = proc; | |
439 _next = NULL; | |
440 } | |
441 void evaluate() { _proc(); } | |
442 ExitProc* next() const { return _next; } | |
443 void set_next(ExitProc* next) { _next = next; } | |
444 }; | |
445 | |
446 | |
447 // Linked list of registered on_exit procedures | |
448 | |
449 static ExitProc* exit_procs = NULL; | |
450 | |
451 | |
452 extern "C" { | |
453 void register_on_exit_function(void (*func)(void)) { | |
454 ExitProc *entry = new ExitProc(func); | |
455 // Classic vm does not throw an exception in case the allocation failed, | |
456 if (entry != NULL) { | |
457 entry->set_next(exit_procs); | |
458 exit_procs = entry; | |
459 } | |
460 } | |
461 } | |
462 | |
463 // Note: before_exit() can be executed only once, if more than one threads | |
464 // are trying to shutdown the VM at the same time, only one thread | |
465 // can run before_exit() and all other threads must wait. | |
466 void before_exit(JavaThread * thread) { | |
467 #define BEFORE_EXIT_NOT_RUN 0 | |
468 #define BEFORE_EXIT_RUNNING 1 | |
469 #define BEFORE_EXIT_DONE 2 | |
470 static jint volatile _before_exit_status = BEFORE_EXIT_NOT_RUN; | |
471 | |
472 // Note: don't use a Mutex to guard the entire before_exit(), as | |
473 // JVMTI post_thread_end_event and post_vm_death_event will run native code. | |
474 // A CAS or OSMutex would work just fine but then we need to manipulate | |
475 // thread state for Safepoint. Here we use Monitor wait() and notify_all() | |
476 // for synchronization. | |
477 { MutexLocker ml(BeforeExit_lock); | |
478 switch (_before_exit_status) { | |
479 case BEFORE_EXIT_NOT_RUN: | |
480 _before_exit_status = BEFORE_EXIT_RUNNING; | |
481 break; | |
482 case BEFORE_EXIT_RUNNING: | |
483 while (_before_exit_status == BEFORE_EXIT_RUNNING) { | |
484 BeforeExit_lock->wait(); | |
485 } | |
486 assert(_before_exit_status == BEFORE_EXIT_DONE, "invalid state"); | |
487 return; | |
488 case BEFORE_EXIT_DONE: | |
489 return; | |
490 } | |
491 } | |
492 | |
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493 #ifdef GRAAL |
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494 GraalRuntime::shutdown(); |
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495 #endif |
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496 |
0 | 497 // The only difference between this and Win32's _onexit procs is that |
498 // this version is invoked before any threads get killed. | |
499 ExitProc* current = exit_procs; | |
500 while (current != NULL) { | |
501 ExitProc* next = current->next(); | |
502 current->evaluate(); | |
503 delete current; | |
504 current = next; | |
505 } | |
506 | |
507 // Hang forever on exit if we're reporting an error. | |
508 if (ShowMessageBoxOnError && is_error_reported()) { | |
509 os::infinite_sleep(); | |
510 } | |
511 | |
512 // Terminate watcher thread - must before disenrolling any periodic task | |
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513 if (PeriodicTask::num_tasks() > 0) |
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514 WatcherThread::stop(); |
0 | 515 |
516 // Print statistics gathered (profiling ...) | |
517 if (Arguments::has_profile()) { | |
518 FlatProfiler::disengage(); | |
519 FlatProfiler::print(10); | |
520 } | |
521 | |
522 // shut down the StatSampler task | |
523 StatSampler::disengage(); | |
524 StatSampler::destroy(); | |
525 | |
17992 | 526 // Stop concurrent GC threads |
527 Universe::heap()->stop(); | |
0 | 528 |
529 // Print GC/heap related information. | |
530 if (PrintGCDetails) { | |
531 Universe::print(); | |
532 AdaptiveSizePolicyOutput(0); | |
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533 if (Verbose) { |
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534 ClassLoaderDataGraph::dump_on(gclog_or_tty); |
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535 } |
0 | 536 } |
537 | |
538 if (PrintBytecodeHistogram) { | |
539 BytecodeHistogram::print(); | |
540 } | |
541 | |
542 if (JvmtiExport::should_post_thread_life()) { | |
543 JvmtiExport::post_thread_end(thread); | |
544 } | |
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545 |
10405 | 546 |
547 EventThreadEnd event; | |
548 if (event.should_commit()) { | |
549 event.set_javalangthread(java_lang_Thread::thread_id(thread->threadObj())); | |
550 event.commit(); | |
551 } | |
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552 |
0 | 553 // Always call even when there are not JVMTI environments yet, since environments |
554 // may be attached late and JVMTI must track phases of VM execution | |
555 JvmtiExport::post_vm_death(); | |
556 Threads::shutdown_vm_agents(); | |
557 | |
558 // Terminate the signal thread | |
559 // Note: we don't wait until it actually dies. | |
560 os::terminate_signal_thread(); | |
561 | |
562 print_statistics(); | |
563 Universe::heap()->print_tracing_info(); | |
564 | |
565 { MutexLocker ml(BeforeExit_lock); | |
566 _before_exit_status = BEFORE_EXIT_DONE; | |
567 BeforeExit_lock->notify_all(); | |
568 } | |
569 | |
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570 if (VerifyStringTableAtExit) { |
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571 int fail_cnt = 0; |
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572 { |
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573 MutexLocker ml(StringTable_lock); |
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574 fail_cnt = StringTable::verify_and_compare_entries(); |
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575 } |
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576 |
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577 if (fail_cnt != 0) { |
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578 tty->print_cr("ERROR: fail_cnt=%d", fail_cnt); |
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579 guarantee(fail_cnt == 0, "unexpected StringTable verification failures"); |
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580 } |
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581 } |
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582 |
0 | 583 #undef BEFORE_EXIT_NOT_RUN |
584 #undef BEFORE_EXIT_RUNNING | |
585 #undef BEFORE_EXIT_DONE | |
586 } | |
587 | |
588 void vm_exit(int code) { | |
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589 Thread* thread = ThreadLocalStorage::is_initialized() ? |
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590 ThreadLocalStorage::get_thread_slow() : NULL; |
0 | 591 if (thread == NULL) { |
592 // we have serious problems -- just exit | |
593 vm_direct_exit(code); | |
594 } | |
595 | |
596 if (VMThread::vm_thread() != NULL) { | |
597 // Fire off a VM_Exit operation to bring VM to a safepoint and exit | |
598 VM_Exit op(code); | |
599 if (thread->is_Java_thread()) | |
600 ((JavaThread*)thread)->set_thread_state(_thread_in_vm); | |
601 VMThread::execute(&op); | |
602 // should never reach here; but in case something wrong with VM Thread. | |
603 vm_direct_exit(code); | |
604 } else { | |
605 // VM thread is gone, just exit | |
606 vm_direct_exit(code); | |
607 } | |
608 ShouldNotReachHere(); | |
609 } | |
610 | |
611 void notify_vm_shutdown() { | |
612 // For now, just a dtrace probe. | |
4006 | 613 #ifndef USDT2 |
0 | 614 HS_DTRACE_PROBE(hotspot, vm__shutdown); |
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615 HS_DTRACE_WORKAROUND_TAIL_CALL_BUG(); |
4006 | 616 #else /* USDT2 */ |
617 HOTSPOT_VM_SHUTDOWN(); | |
618 #endif /* USDT2 */ | |
0 | 619 } |
620 | |
621 void vm_direct_exit(int code) { | |
622 notify_vm_shutdown(); | |
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623 os::wait_for_keypress_at_exit(); |
0 | 624 ::exit(code); |
625 } | |
626 | |
627 void vm_perform_shutdown_actions() { | |
628 // Warning: do not call 'exit_globals()' here. All threads are still running. | |
629 // Calling 'exit_globals()' will disable thread-local-storage and cause all | |
630 // kinds of assertions to trigger in debug mode. | |
631 if (is_init_completed()) { | |
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632 Thread* thread = ThreadLocalStorage::is_initialized() ? |
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633 ThreadLocalStorage::get_thread_slow() : NULL; |
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634 if (thread != NULL && thread->is_Java_thread()) { |
0 | 635 // We are leaving the VM, set state to native (in case any OS exit |
636 // handlers call back to the VM) | |
637 JavaThread* jt = (JavaThread*)thread; | |
638 // Must always be walkable or have no last_Java_frame when in | |
639 // thread_in_native | |
640 jt->frame_anchor()->make_walkable(jt); | |
641 jt->set_thread_state(_thread_in_native); | |
642 } | |
643 } | |
644 notify_vm_shutdown(); | |
645 } | |
646 | |
647 void vm_shutdown() | |
648 { | |
649 vm_perform_shutdown_actions(); | |
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650 os::wait_for_keypress_at_exit(); |
0 | 651 os::shutdown(); |
652 } | |
653 | |
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654 void vm_abort(bool dump_core) { |
0 | 655 vm_perform_shutdown_actions(); |
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656 os::wait_for_keypress_at_exit(); |
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657 os::abort(dump_core); |
0 | 658 ShouldNotReachHere(); |
659 } | |
660 | |
661 void vm_notify_during_shutdown(const char* error, const char* message) { | |
662 if (error != NULL) { | |
663 tty->print_cr("Error occurred during initialization of VM"); | |
664 tty->print("%s", error); | |
665 if (message != NULL) { | |
666 tty->print_cr(": %s", message); | |
667 } | |
668 else { | |
669 tty->cr(); | |
670 } | |
671 } | |
672 if (ShowMessageBoxOnError && WizardMode) { | |
673 fatal("Error occurred during initialization of VM"); | |
674 } | |
675 } | |
676 | |
677 void vm_exit_during_initialization(Handle exception) { | |
678 tty->print_cr("Error occurred during initialization of VM"); | |
679 // If there are exceptions on this thread it must be cleared | |
680 // first and here. Any future calls to EXCEPTION_MARK requires | |
681 // that no pending exceptions exist. | |
682 Thread *THREAD = Thread::current(); | |
683 if (HAS_PENDING_EXCEPTION) { | |
684 CLEAR_PENDING_EXCEPTION; | |
685 } | |
686 java_lang_Throwable::print(exception, tty); | |
687 tty->cr(); | |
688 java_lang_Throwable::print_stack_trace(exception(), tty); | |
689 tty->cr(); | |
690 vm_notify_during_shutdown(NULL, NULL); | |
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691 |
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692 // Failure during initialization, we don't want to dump core |
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693 vm_abort(false); |
0 | 694 } |
695 | |
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696 void vm_exit_during_initialization(Symbol* ex, const char* message) { |
0 | 697 ResourceMark rm; |
698 vm_notify_during_shutdown(ex->as_C_string(), message); | |
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699 |
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700 // Failure during initialization, we don't want to dump core |
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701 vm_abort(false); |
0 | 702 } |
703 | |
704 void vm_exit_during_initialization(const char* error, const char* message) { | |
705 vm_notify_during_shutdown(error, message); | |
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706 |
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707 // Failure during initialization, we don't want to dump core |
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708 vm_abort(false); |
0 | 709 } |
710 | |
711 void vm_shutdown_during_initialization(const char* error, const char* message) { | |
712 vm_notify_during_shutdown(error, message); | |
713 vm_shutdown(); | |
714 } | |
715 | |
242 | 716 JDK_Version JDK_Version::_current; |
6181 | 717 const char* JDK_Version::_runtime_name; |
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718 const char* JDK_Version::_runtime_version; |
0 | 719 |
720 void JDK_Version::initialize() { | |
242 | 721 jdk_version_info info; |
722 assert(!_current.is_valid(), "Don't initialize twice"); | |
723 | |
0 | 724 void *lib_handle = os::native_java_library(); |
242 | 725 jdk_version_info_fn_t func = CAST_TO_FN_PTR(jdk_version_info_fn_t, |
726 os::dll_lookup(lib_handle, "JDK_GetVersionInfo0")); | |
0 | 727 |
728 if (func == NULL) { | |
729 // JDK older than 1.6 | |
242 | 730 _current._partially_initialized = true; |
731 } else { | |
732 (*func)(&info, sizeof(info)); | |
0 | 733 |
242 | 734 int major = JDK_VERSION_MAJOR(info.jdk_version); |
735 int minor = JDK_VERSION_MINOR(info.jdk_version); | |
736 int micro = JDK_VERSION_MICRO(info.jdk_version); | |
737 int build = JDK_VERSION_BUILD(info.jdk_version); | |
738 if (major == 1 && minor > 4) { | |
739 // We represent "1.5.0" as "5.0", but 1.4.2 as itself. | |
740 major = minor; | |
741 minor = micro; | |
742 micro = 0; | |
743 } | |
744 _current = JDK_Version(major, minor, micro, info.update_version, | |
745 info.special_update_version, build, | |
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746 info.thread_park_blocker == 1, |
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747 info.post_vm_init_hook_enabled == 1, |
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748 info.pending_list_uses_discovered_field == 1); |
0 | 749 } |
242 | 750 } |
751 | |
752 void JDK_Version::fully_initialize( | |
753 uint8_t major, uint8_t minor, uint8_t micro, uint8_t update) { | |
754 // This is only called when current is less than 1.6 and we've gotten | |
755 // far enough in the initialization to determine the exact version. | |
756 assert(major < 6, "not needed for JDK version >= 6"); | |
757 assert(is_partially_initialized(), "must not initialize"); | |
758 if (major < 5) { | |
759 // JDK verison sequence: 1.2.x, 1.3.x, 1.4.x, 5.0.x, 6.0.x, etc. | |
760 micro = minor; | |
761 minor = major; | |
762 major = 1; | |
0 | 763 } |
242 | 764 _current = JDK_Version(major, minor, micro, update); |
0 | 765 } |
766 | |
767 void JDK_Version_init() { | |
768 JDK_Version::initialize(); | |
769 } | |
242 | 770 |
771 static int64_t encode_jdk_version(const JDK_Version& v) { | |
772 return | |
773 ((int64_t)v.major_version() << (BitsPerByte * 5)) | | |
774 ((int64_t)v.minor_version() << (BitsPerByte * 4)) | | |
775 ((int64_t)v.micro_version() << (BitsPerByte * 3)) | | |
776 ((int64_t)v.update_version() << (BitsPerByte * 2)) | | |
777 ((int64_t)v.special_update_version() << (BitsPerByte * 1)) | | |
778 ((int64_t)v.build_number() << (BitsPerByte * 0)); | |
779 } | |
780 | |
781 int JDK_Version::compare(const JDK_Version& other) const { | |
782 assert(is_valid() && other.is_valid(), "Invalid version (uninitialized?)"); | |
783 if (!is_partially_initialized() && other.is_partially_initialized()) { | |
784 return -(other.compare(*this)); // flip the comparators | |
785 } | |
786 assert(!other.is_partially_initialized(), "Not initialized yet"); | |
787 if (is_partially_initialized()) { | |
788 assert(other.major_version() >= 6, | |
789 "Invalid JDK version comparison during initialization"); | |
790 return -1; | |
791 } else { | |
792 uint64_t e = encode_jdk_version(*this); | |
793 uint64_t o = encode_jdk_version(other); | |
794 return (e > o) ? 1 : ((e == o) ? 0 : -1); | |
795 } | |
796 } | |
797 | |
798 void JDK_Version::to_string(char* buffer, size_t buflen) const { | |
799 size_t index = 0; | |
800 if (!is_valid()) { | |
801 jio_snprintf(buffer, buflen, "%s", "(uninitialized)"); | |
802 } else if (is_partially_initialized()) { | |
803 jio_snprintf(buffer, buflen, "%s", "(uninitialized) pre-1.6.0"); | |
804 } else { | |
805 index += jio_snprintf( | |
806 &buffer[index], buflen - index, "%d.%d", _major, _minor); | |
807 if (_micro > 0) { | |
808 index += jio_snprintf(&buffer[index], buflen - index, ".%d", _micro); | |
809 } | |
810 if (_update > 0) { | |
811 index += jio_snprintf(&buffer[index], buflen - index, "_%02d", _update); | |
812 } | |
813 if (_special > 0) { | |
814 index += jio_snprintf(&buffer[index], buflen - index, "%c", _special); | |
815 } | |
816 if (_build > 0) { | |
817 index += jio_snprintf(&buffer[index], buflen - index, "-b%02d", _build); | |
818 } | |
819 } | |
820 } |