Mercurial > hg > truffle
annotate src/share/vm/runtime/java.cpp @ 11239:6c098f64a7a6
added support for handling volatile registers across native runtime calls
author | Doug Simon <doug.simon@oracle.com> |
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date | Wed, 07 Aug 2013 01:52:44 +0200 |
parents | 6b0fd0964b87 |
children | cefad50507d8 |
rev | line source |
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0 | 1 /* |
10405 | 2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "classfile/classLoader.hpp" | |
27 #include "classfile/symbolTable.hpp" | |
28 #include "classfile/systemDictionary.hpp" | |
29 #include "code/codeCache.hpp" | |
30 #include "compiler/compileBroker.hpp" | |
31 #include "compiler/compilerOracle.hpp" | |
32 #include "interpreter/bytecodeHistogram.hpp" | |
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33 #ifdef GRAAL |
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34 #include "graal/graalCompiler.hpp" |
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35 #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/arguments.hpp" | |
49 #include "runtime/biasedLocking.hpp" | |
50 #include "runtime/compilationPolicy.hpp" | |
51 #include "runtime/fprofiler.hpp" | |
52 #include "runtime/init.hpp" | |
53 #include "runtime/interfaceSupport.hpp" | |
54 #include "runtime/java.hpp" | |
55 #include "runtime/memprofiler.hpp" | |
56 #include "runtime/sharedRuntime.hpp" | |
57 #include "runtime/statSampler.hpp" | |
58 #include "runtime/task.hpp" | |
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59 #include "runtime/thread.inline.hpp" |
1972 | 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" |
1972 | 65 #include "utilities/dtrace.hpp" |
66 #include "utilities/globalDefinitions.hpp" | |
67 #include "utilities/histogram.hpp" | |
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68 #include "utilities/macros.hpp" |
1972 | 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 |
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85 #if INCLUDE_ALL_GCS |
1972 | 86 #include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepThread.hpp" |
87 #include "gc_implementation/parallelScavenge/psScavenge.hpp" | |
88 #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp" | |
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89 #endif // INCLUDE_ALL_GCS |
1972 | 90 #ifdef COMPILER1 |
91 #include "c1/c1_Compiler.hpp" | |
92 #include "c1/c1_Runtime1.hpp" | |
93 #endif | |
94 #ifdef COMPILER2 | |
95 #include "code/compiledIC.hpp" | |
96 #include "compiler/methodLiveness.hpp" | |
97 #include "opto/compile.hpp" | |
98 #include "opto/indexSet.hpp" | |
99 #include "opto/runtime.hpp" | |
100 #endif | |
0 | 101 |
4006 | 102 #ifndef USDT2 |
0 | 103 HS_DTRACE_PROBE_DECL(hotspot, vm__shutdown); |
4006 | 104 #endif /* !USDT2 */ |
0 | 105 |
106 #ifndef PRODUCT | |
107 | |
108 // Statistics printing (method invocation histogram) | |
109 | |
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110 GrowableArray<Method*>* collected_invoked_methods; |
0 | 111 |
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112 void collect_invoked_methods(Method* m) { |
0 | 113 if (m->invocation_count() + m->compiled_invocation_count() >= 1 ) { |
114 collected_invoked_methods->push(m); | |
115 } | |
116 } | |
117 | |
118 | |
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119 GrowableArray<Method*>* collected_profiled_methods; |
0 | 120 |
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121 void collect_profiled_methods(Method* m) { |
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122 Thread* thread = Thread::current(); |
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123 // This HandleMark prevents a huge amount of handles from being added |
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124 // to the metadata_handles() array on the thread. |
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125 HandleMark hm(thread); |
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126 methodHandle mh(thread, m); |
0 | 127 if ((m->method_data() != NULL) && |
128 (PrintMethodData || CompilerOracle::should_print(mh))) { | |
129 collected_profiled_methods->push(m); | |
130 } | |
131 } | |
132 | |
133 | |
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134 int compare_methods(Method** a, Method** b) { |
0 | 135 // %%% there can be 32-bit overflow here |
136 return ((*b)->invocation_count() + (*b)->compiled_invocation_count()) | |
137 - ((*a)->invocation_count() + (*a)->compiled_invocation_count()); | |
138 } | |
139 | |
140 | |
141 void print_method_invocation_histogram() { | |
142 ResourceMark rm; | |
143 HandleMark hm; | |
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144 collected_invoked_methods = new GrowableArray<Method*>(1024); |
0 | 145 SystemDictionary::methods_do(collect_invoked_methods); |
146 collected_invoked_methods->sort(&compare_methods); | |
147 // | |
148 tty->cr(); | |
149 tty->print_cr("Histogram Over MethodOop Invocation Counters (cutoff = %d):", MethodHistogramCutoff); | |
150 tty->cr(); | |
151 tty->print_cr("____Count_(I+C)____Method________________________Module_________________"); | |
152 unsigned total = 0, int_total = 0, comp_total = 0, static_total = 0, final_total = 0, | |
153 synch_total = 0, nativ_total = 0, acces_total = 0; | |
154 for (int index = 0; index < collected_invoked_methods->length(); index++) { | |
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155 Method* m = collected_invoked_methods->at(index); |
0 | 156 int c = m->invocation_count() + m->compiled_invocation_count(); |
157 if (c >= MethodHistogramCutoff) m->print_invocation_count(); | |
158 int_total += m->invocation_count(); | |
159 comp_total += m->compiled_invocation_count(); | |
160 if (m->is_final()) final_total += c; | |
161 if (m->is_static()) static_total += c; | |
162 if (m->is_synchronized()) synch_total += c; | |
163 if (m->is_native()) nativ_total += c; | |
164 if (m->is_accessor()) acces_total += c; | |
165 } | |
166 tty->cr(); | |
167 total = int_total + comp_total; | |
168 tty->print_cr("Invocations summary:"); | |
169 tty->print_cr("\t%9d (%4.1f%%) interpreted", int_total, 100.0 * int_total / total); | |
170 tty->print_cr("\t%9d (%4.1f%%) compiled", comp_total, 100.0 * comp_total / total); | |
171 tty->print_cr("\t%9d (100%%) total", total); | |
172 tty->print_cr("\t%9d (%4.1f%%) synchronized", synch_total, 100.0 * synch_total / total); | |
173 tty->print_cr("\t%9d (%4.1f%%) final", final_total, 100.0 * final_total / total); | |
174 tty->print_cr("\t%9d (%4.1f%%) static", static_total, 100.0 * static_total / total); | |
175 tty->print_cr("\t%9d (%4.1f%%) native", nativ_total, 100.0 * nativ_total / total); | |
176 tty->print_cr("\t%9d (%4.1f%%) accessor", acces_total, 100.0 * acces_total / total); | |
177 tty->cr(); | |
178 SharedRuntime::print_call_statistics(comp_total); | |
179 } | |
180 | |
181 void print_method_profiling_data() { | |
182 ResourceMark rm; | |
183 HandleMark hm; | |
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184 collected_profiled_methods = new GrowableArray<Method*>(1024); |
0 | 185 SystemDictionary::methods_do(collect_profiled_methods); |
186 collected_profiled_methods->sort(&compare_methods); | |
187 | |
188 int count = collected_profiled_methods->length(); | |
189 if (count > 0) { | |
190 for (int index = 0; index < count; index++) { | |
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191 Method* m = collected_profiled_methods->at(index); |
0 | 192 ttyLocker ttyl; |
193 tty->print_cr("------------------------------------------------------------------------"); | |
194 //m->print_name(tty); | |
195 m->print_invocation_count(); | |
196 tty->cr(); | |
197 m->print_codes(); | |
198 } | |
199 tty->print_cr("------------------------------------------------------------------------"); | |
200 } | |
201 } | |
202 | |
203 void print_bytecode_count() { | |
204 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) { | |
205 tty->print_cr("[BytecodeCounter::counter_value = %d]", BytecodeCounter::counter_value()); | |
206 } | |
207 } | |
208 | |
209 AllocStats alloc_stats; | |
210 | |
211 | |
212 | |
213 // General statistics printing (profiling ...) | |
214 | |
215 void print_statistics() { | |
216 | |
217 #ifdef ASSERT | |
218 | |
219 if (CountRuntimeCalls) { | |
220 extern Histogram *RuntimeHistogram; | |
221 RuntimeHistogram->print(); | |
222 } | |
223 | |
224 if (CountJNICalls) { | |
225 extern Histogram *JNIHistogram; | |
226 JNIHistogram->print(); | |
227 } | |
228 | |
229 if (CountJVMCalls) { | |
230 extern Histogram *JVMHistogram; | |
231 JVMHistogram->print(); | |
232 } | |
233 | |
234 #endif | |
235 | |
236 if (MemProfiling) { | |
237 MemProfiler::disengage(); | |
238 } | |
239 | |
240 if (CITime) { | |
241 CompileBroker::print_times(); | |
242 } | |
243 | |
244 #ifdef COMPILER1 | |
245 if ((PrintC1Statistics || LogVMOutput || LogCompilation) && UseCompiler) { | |
246 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintC1Statistics); | |
247 Runtime1::print_statistics(); | |
248 Deoptimization::print_statistics(); | |
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249 SharedRuntime::print_statistics(); |
0 | 250 } |
251 #endif /* COMPILER1 */ | |
252 | |
253 #ifdef COMPILER2 | |
254 if ((PrintOptoStatistics || LogVMOutput || LogCompilation) && UseCompiler) { | |
255 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintOptoStatistics); | |
256 Compile::print_statistics(); | |
257 #ifndef COMPILER1 | |
258 Deoptimization::print_statistics(); | |
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259 SharedRuntime::print_statistics(); |
0 | 260 #endif //COMPILER1 |
261 os::print_statistics(); | |
262 } | |
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263 |
0 | 264 if (PrintLockStatistics || PrintPreciseBiasedLockingStatistics) { |
265 OptoRuntime::print_named_counters(); | |
266 } | |
267 | |
268 if (TimeLivenessAnalysis) { | |
269 MethodLiveness::print_times(); | |
270 } | |
271 #ifdef ASSERT | |
272 if (CollectIndexSetStatistics) { | |
273 IndexSet::print_statistics(); | |
274 } | |
275 #endif // ASSERT | |
276 #endif // COMPILER2 | |
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277 |
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278 if (PrintNMethodStatistics) { |
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279 nmethod::print_statistics(); |
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280 } |
0 | 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 if (PrintNMethodStatistics) { |
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390 nmethod::print_statistics(); |
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391 } |
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392 |
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393 // Native memory tracking data |
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394 if (PrintNMTStatistics) { |
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395 if (MemTracker::is_on()) { |
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396 BaselineTTYOutputer outputer(tty); |
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397 MemTracker::print_memory_usage(outputer, K, false); |
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398 } else { |
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399 tty->print_cr(MemTracker::reason()); |
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400 } |
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401 } |
0 | 402 } |
403 | |
404 #endif | |
405 | |
406 | |
407 // Helper class for registering on_exit calls through JVM_OnExit | |
408 | |
409 extern "C" { | |
410 typedef void (*__exit_proc)(void); | |
411 } | |
412 | |
6197 | 413 class ExitProc : public CHeapObj<mtInternal> { |
0 | 414 private: |
415 __exit_proc _proc; | |
416 // void (*_proc)(void); | |
417 ExitProc* _next; | |
418 public: | |
419 // ExitProc(void (*proc)(void)) { | |
420 ExitProc(__exit_proc proc) { | |
421 _proc = proc; | |
422 _next = NULL; | |
423 } | |
424 void evaluate() { _proc(); } | |
425 ExitProc* next() const { return _next; } | |
426 void set_next(ExitProc* next) { _next = next; } | |
427 }; | |
428 | |
429 | |
430 // Linked list of registered on_exit procedures | |
431 | |
432 static ExitProc* exit_procs = NULL; | |
433 | |
434 | |
435 extern "C" { | |
436 void register_on_exit_function(void (*func)(void)) { | |
437 ExitProc *entry = new ExitProc(func); | |
438 // Classic vm does not throw an exception in case the allocation failed, | |
439 if (entry != NULL) { | |
440 entry->set_next(exit_procs); | |
441 exit_procs = entry; | |
442 } | |
443 } | |
444 } | |
445 | |
446 // Note: before_exit() can be executed only once, if more than one threads | |
447 // are trying to shutdown the VM at the same time, only one thread | |
448 // can run before_exit() and all other threads must wait. | |
449 void before_exit(JavaThread * thread) { | |
450 #define BEFORE_EXIT_NOT_RUN 0 | |
451 #define BEFORE_EXIT_RUNNING 1 | |
452 #define BEFORE_EXIT_DONE 2 | |
453 static jint volatile _before_exit_status = BEFORE_EXIT_NOT_RUN; | |
454 | |
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455 #ifdef GRAAL |
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456 GraalCompiler::instance()->exit(); |
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457 #endif |
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458 |
0 | 459 // Note: don't use a Mutex to guard the entire before_exit(), as |
460 // JVMTI post_thread_end_event and post_vm_death_event will run native code. | |
461 // A CAS or OSMutex would work just fine but then we need to manipulate | |
462 // thread state for Safepoint. Here we use Monitor wait() and notify_all() | |
463 // for synchronization. | |
464 { MutexLocker ml(BeforeExit_lock); | |
465 switch (_before_exit_status) { | |
466 case BEFORE_EXIT_NOT_RUN: | |
467 _before_exit_status = BEFORE_EXIT_RUNNING; | |
468 break; | |
469 case BEFORE_EXIT_RUNNING: | |
470 while (_before_exit_status == BEFORE_EXIT_RUNNING) { | |
471 BeforeExit_lock->wait(); | |
472 } | |
473 assert(_before_exit_status == BEFORE_EXIT_DONE, "invalid state"); | |
474 return; | |
475 case BEFORE_EXIT_DONE: | |
476 return; | |
477 } | |
478 } | |
479 | |
480 // The only difference between this and Win32's _onexit procs is that | |
481 // this version is invoked before any threads get killed. | |
482 ExitProc* current = exit_procs; | |
483 while (current != NULL) { | |
484 ExitProc* next = current->next(); | |
485 current->evaluate(); | |
486 delete current; | |
487 current = next; | |
488 } | |
489 | |
490 // Hang forever on exit if we're reporting an error. | |
491 if (ShowMessageBoxOnError && is_error_reported()) { | |
492 os::infinite_sleep(); | |
493 } | |
494 | |
495 // Terminate watcher thread - must before disenrolling any periodic task | |
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496 if (PeriodicTask::num_tasks() > 0) |
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497 WatcherThread::stop(); |
0 | 498 |
499 // Print statistics gathered (profiling ...) | |
500 if (Arguments::has_profile()) { | |
501 FlatProfiler::disengage(); | |
502 FlatProfiler::print(10); | |
503 } | |
504 | |
505 // shut down the StatSampler task | |
506 StatSampler::disengage(); | |
507 StatSampler::destroy(); | |
508 | |
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509 // We do not need to explicitly stop concurrent GC threads because the |
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510 // JVM will be taken down at a safepoint when such threads are inactive -- |
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511 // except for some concurrent G1 threads, see (comment in) |
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512 // Threads::destroy_vm(). |
0 | 513 |
514 // Print GC/heap related information. | |
515 if (PrintGCDetails) { | |
516 Universe::print(); | |
517 AdaptiveSizePolicyOutput(0); | |
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518 if (Verbose) { |
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519 ClassLoaderDataGraph::dump_on(gclog_or_tty); |
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520 } |
0 | 521 } |
522 | |
523 if (PrintBytecodeHistogram) { | |
524 BytecodeHistogram::print(); | |
525 } | |
526 | |
527 if (JvmtiExport::should_post_thread_life()) { | |
528 JvmtiExport::post_thread_end(thread); | |
529 } | |
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530 |
10405 | 531 |
532 EventThreadEnd event; | |
533 if (event.should_commit()) { | |
534 event.set_javalangthread(java_lang_Thread::thread_id(thread->threadObj())); | |
535 event.commit(); | |
536 } | |
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537 |
0 | 538 // Always call even when there are not JVMTI environments yet, since environments |
539 // may be attached late and JVMTI must track phases of VM execution | |
540 JvmtiExport::post_vm_death(); | |
541 Threads::shutdown_vm_agents(); | |
542 | |
543 // Terminate the signal thread | |
544 // Note: we don't wait until it actually dies. | |
545 os::terminate_signal_thread(); | |
546 | |
547 print_statistics(); | |
548 Universe::heap()->print_tracing_info(); | |
549 | |
550 { MutexLocker ml(BeforeExit_lock); | |
551 _before_exit_status = BEFORE_EXIT_DONE; | |
552 BeforeExit_lock->notify_all(); | |
553 } | |
554 | |
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555 // Shutdown NMT before exit. Otherwise, |
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556 // it will run into trouble when system destroys static variables. |
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557 MemTracker::shutdown(MemTracker::NMT_normal); |
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558 |
0 | 559 #undef BEFORE_EXIT_NOT_RUN |
560 #undef BEFORE_EXIT_RUNNING | |
561 #undef BEFORE_EXIT_DONE | |
562 } | |
563 | |
564 void vm_exit(int code) { | |
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565 Thread* thread = ThreadLocalStorage::is_initialized() ? |
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566 ThreadLocalStorage::get_thread_slow() : NULL; |
0 | 567 if (thread == NULL) { |
568 // we have serious problems -- just exit | |
569 vm_direct_exit(code); | |
570 } | |
571 | |
572 if (VMThread::vm_thread() != NULL) { | |
573 // Fire off a VM_Exit operation to bring VM to a safepoint and exit | |
574 VM_Exit op(code); | |
575 if (thread->is_Java_thread()) | |
576 ((JavaThread*)thread)->set_thread_state(_thread_in_vm); | |
577 VMThread::execute(&op); | |
578 // should never reach here; but in case something wrong with VM Thread. | |
579 vm_direct_exit(code); | |
580 } else { | |
581 // VM thread is gone, just exit | |
582 vm_direct_exit(code); | |
583 } | |
584 ShouldNotReachHere(); | |
585 } | |
586 | |
587 void notify_vm_shutdown() { | |
588 // For now, just a dtrace probe. | |
4006 | 589 #ifndef USDT2 |
0 | 590 HS_DTRACE_PROBE(hotspot, vm__shutdown); |
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591 HS_DTRACE_WORKAROUND_TAIL_CALL_BUG(); |
4006 | 592 #else /* USDT2 */ |
593 HOTSPOT_VM_SHUTDOWN(); | |
594 #endif /* USDT2 */ | |
0 | 595 } |
596 | |
597 void vm_direct_exit(int code) { | |
598 notify_vm_shutdown(); | |
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599 os::wait_for_keypress_at_exit(); |
0 | 600 ::exit(code); |
601 } | |
602 | |
603 void vm_perform_shutdown_actions() { | |
604 // Warning: do not call 'exit_globals()' here. All threads are still running. | |
605 // Calling 'exit_globals()' will disable thread-local-storage and cause all | |
606 // kinds of assertions to trigger in debug mode. | |
607 if (is_init_completed()) { | |
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608 Thread* thread = ThreadLocalStorage::is_initialized() ? |
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609 ThreadLocalStorage::get_thread_slow() : NULL; |
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610 if (thread != NULL && thread->is_Java_thread()) { |
0 | 611 // We are leaving the VM, set state to native (in case any OS exit |
612 // handlers call back to the VM) | |
613 JavaThread* jt = (JavaThread*)thread; | |
614 // Must always be walkable or have no last_Java_frame when in | |
615 // thread_in_native | |
616 jt->frame_anchor()->make_walkable(jt); | |
617 jt->set_thread_state(_thread_in_native); | |
618 } | |
619 } | |
620 notify_vm_shutdown(); | |
621 } | |
622 | |
623 void vm_shutdown() | |
624 { | |
625 vm_perform_shutdown_actions(); | |
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626 os::wait_for_keypress_at_exit(); |
0 | 627 os::shutdown(); |
628 } | |
629 | |
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630 void vm_abort(bool dump_core) { |
0 | 631 vm_perform_shutdown_actions(); |
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632 os::wait_for_keypress_at_exit(); |
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633 os::abort(dump_core); |
0 | 634 ShouldNotReachHere(); |
635 } | |
636 | |
637 void vm_notify_during_shutdown(const char* error, const char* message) { | |
638 if (error != NULL) { | |
639 tty->print_cr("Error occurred during initialization of VM"); | |
640 tty->print("%s", error); | |
641 if (message != NULL) { | |
642 tty->print_cr(": %s", message); | |
643 } | |
644 else { | |
645 tty->cr(); | |
646 } | |
647 } | |
648 if (ShowMessageBoxOnError && WizardMode) { | |
649 fatal("Error occurred during initialization of VM"); | |
650 } | |
651 } | |
652 | |
653 void vm_exit_during_initialization(Handle exception) { | |
654 tty->print_cr("Error occurred during initialization of VM"); | |
655 // If there are exceptions on this thread it must be cleared | |
656 // first and here. Any future calls to EXCEPTION_MARK requires | |
657 // that no pending exceptions exist. | |
658 Thread *THREAD = Thread::current(); | |
659 if (HAS_PENDING_EXCEPTION) { | |
660 CLEAR_PENDING_EXCEPTION; | |
661 } | |
662 java_lang_Throwable::print(exception, tty); | |
663 tty->cr(); | |
664 java_lang_Throwable::print_stack_trace(exception(), tty); | |
665 tty->cr(); | |
666 vm_notify_during_shutdown(NULL, NULL); | |
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667 |
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668 // Failure during initialization, we don't want to dump core |
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669 vm_abort(false); |
0 | 670 } |
671 | |
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672 void vm_exit_during_initialization(Symbol* ex, const char* message) { |
0 | 673 ResourceMark rm; |
674 vm_notify_during_shutdown(ex->as_C_string(), message); | |
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675 |
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676 // Failure during initialization, we don't want to dump core |
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677 vm_abort(false); |
0 | 678 } |
679 | |
680 void vm_exit_during_initialization(const char* error, const char* message) { | |
681 vm_notify_during_shutdown(error, message); | |
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682 |
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683 // Failure during initialization, we don't want to dump core |
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684 vm_abort(false); |
0 | 685 } |
686 | |
687 void vm_shutdown_during_initialization(const char* error, const char* message) { | |
688 vm_notify_during_shutdown(error, message); | |
689 vm_shutdown(); | |
690 } | |
691 | |
242 | 692 JDK_Version JDK_Version::_current; |
6181 | 693 const char* JDK_Version::_runtime_name; |
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694 const char* JDK_Version::_runtime_version; |
0 | 695 |
696 void JDK_Version::initialize() { | |
242 | 697 jdk_version_info info; |
698 assert(!_current.is_valid(), "Don't initialize twice"); | |
699 | |
0 | 700 void *lib_handle = os::native_java_library(); |
242 | 701 jdk_version_info_fn_t func = CAST_TO_FN_PTR(jdk_version_info_fn_t, |
702 os::dll_lookup(lib_handle, "JDK_GetVersionInfo0")); | |
0 | 703 |
704 if (func == NULL) { | |
705 // JDK older than 1.6 | |
242 | 706 _current._partially_initialized = true; |
707 } else { | |
708 (*func)(&info, sizeof(info)); | |
0 | 709 |
242 | 710 int major = JDK_VERSION_MAJOR(info.jdk_version); |
711 int minor = JDK_VERSION_MINOR(info.jdk_version); | |
712 int micro = JDK_VERSION_MICRO(info.jdk_version); | |
713 int build = JDK_VERSION_BUILD(info.jdk_version); | |
714 if (major == 1 && minor > 4) { | |
715 // We represent "1.5.0" as "5.0", but 1.4.2 as itself. | |
716 major = minor; | |
717 minor = micro; | |
718 micro = 0; | |
719 } | |
720 _current = JDK_Version(major, minor, micro, info.update_version, | |
721 info.special_update_version, build, | |
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722 info.thread_park_blocker == 1, |
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723 info.post_vm_init_hook_enabled == 1, |
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724 info.pending_list_uses_discovered_field == 1); |
0 | 725 } |
242 | 726 } |
727 | |
728 void JDK_Version::fully_initialize( | |
729 uint8_t major, uint8_t minor, uint8_t micro, uint8_t update) { | |
730 // This is only called when current is less than 1.6 and we've gotten | |
731 // far enough in the initialization to determine the exact version. | |
732 assert(major < 6, "not needed for JDK version >= 6"); | |
733 assert(is_partially_initialized(), "must not initialize"); | |
734 if (major < 5) { | |
735 // JDK verison sequence: 1.2.x, 1.3.x, 1.4.x, 5.0.x, 6.0.x, etc. | |
736 micro = minor; | |
737 minor = major; | |
738 major = 1; | |
0 | 739 } |
242 | 740 _current = JDK_Version(major, minor, micro, update); |
0 | 741 } |
742 | |
743 void JDK_Version_init() { | |
744 JDK_Version::initialize(); | |
745 } | |
242 | 746 |
747 static int64_t encode_jdk_version(const JDK_Version& v) { | |
748 return | |
749 ((int64_t)v.major_version() << (BitsPerByte * 5)) | | |
750 ((int64_t)v.minor_version() << (BitsPerByte * 4)) | | |
751 ((int64_t)v.micro_version() << (BitsPerByte * 3)) | | |
752 ((int64_t)v.update_version() << (BitsPerByte * 2)) | | |
753 ((int64_t)v.special_update_version() << (BitsPerByte * 1)) | | |
754 ((int64_t)v.build_number() << (BitsPerByte * 0)); | |
755 } | |
756 | |
757 int JDK_Version::compare(const JDK_Version& other) const { | |
758 assert(is_valid() && other.is_valid(), "Invalid version (uninitialized?)"); | |
759 if (!is_partially_initialized() && other.is_partially_initialized()) { | |
760 return -(other.compare(*this)); // flip the comparators | |
761 } | |
762 assert(!other.is_partially_initialized(), "Not initialized yet"); | |
763 if (is_partially_initialized()) { | |
764 assert(other.major_version() >= 6, | |
765 "Invalid JDK version comparison during initialization"); | |
766 return -1; | |
767 } else { | |
768 uint64_t e = encode_jdk_version(*this); | |
769 uint64_t o = encode_jdk_version(other); | |
770 return (e > o) ? 1 : ((e == o) ? 0 : -1); | |
771 } | |
772 } | |
773 | |
774 void JDK_Version::to_string(char* buffer, size_t buflen) const { | |
775 size_t index = 0; | |
776 if (!is_valid()) { | |
777 jio_snprintf(buffer, buflen, "%s", "(uninitialized)"); | |
778 } else if (is_partially_initialized()) { | |
779 jio_snprintf(buffer, buflen, "%s", "(uninitialized) pre-1.6.0"); | |
780 } else { | |
781 index += jio_snprintf( | |
782 &buffer[index], buflen - index, "%d.%d", _major, _minor); | |
783 if (_micro > 0) { | |
784 index += jio_snprintf(&buffer[index], buflen - index, ".%d", _micro); | |
785 } | |
786 if (_update > 0) { | |
787 index += jio_snprintf(&buffer[index], buflen - index, "_%02d", _update); | |
788 } | |
789 if (_special > 0) { | |
790 index += jio_snprintf(&buffer[index], buflen - index, "%c", _special); | |
791 } | |
792 if (_build > 0) { | |
793 index += jio_snprintf(&buffer[index], buflen - index, "-b%02d", _build); | |
794 } | |
795 } | |
796 } |