Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/java.cpp @ 9809:a8a5d5832def
first step towards extensibility of the escape analysis phase
author | Lukas Stadler <lukas.stadler@jku.at> |
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date | Fri, 17 May 2013 16:47:13 +0200 |
parents | 197426668a5d |
children | 836a62f43af9 |
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 } |
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253 #endif /* COMPILER1 */ |
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254 |
0 | 255 #ifdef COMPILER2 |
256 if ((PrintOptoStatistics || LogVMOutput || LogCompilation) && UseCompiler) { | |
257 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintOptoStatistics); | |
258 Compile::print_statistics(); | |
259 #ifndef COMPILER1 | |
260 Deoptimization::print_statistics(); | |
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261 SharedRuntime::print_statistics(); |
0 | 262 #endif //COMPILER1 |
263 os::print_statistics(); | |
264 } | |
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265 |
0 | 266 if (PrintLockStatistics || PrintPreciseBiasedLockingStatistics) { |
267 OptoRuntime::print_named_counters(); | |
268 } | |
269 | |
270 if (TimeLivenessAnalysis) { | |
271 MethodLiveness::print_times(); | |
272 } | |
273 #ifdef ASSERT | |
274 if (CollectIndexSetStatistics) { | |
275 IndexSet::print_statistics(); | |
276 } | |
277 #endif // ASSERT | |
278 #endif // COMPILER2 | |
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279 |
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280 if (PrintNMethodStatistics) { |
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281 nmethod::print_statistics(); |
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282 } |
0 | 283 if (CountCompiledCalls) { |
284 print_method_invocation_histogram(); | |
285 } | |
1918 | 286 if (ProfileInterpreter COMPILER1_PRESENT(|| C1UpdateMethodData)) { |
0 | 287 print_method_profiling_data(); |
288 } | |
289 if (TimeCompiler) { | |
290 COMPILER2_PRESENT(Compile::print_timers();) | |
291 } | |
292 if (TimeCompilationPolicy) { | |
293 CompilationPolicy::policy()->print_time(); | |
294 } | |
295 if (TimeOopMap) { | |
296 GenerateOopMap::print_time(); | |
297 } | |
298 if (ProfilerCheckIntervals) { | |
299 PeriodicTask::print_intervals(); | |
300 } | |
301 if (PrintSymbolTableSizeHistogram) { | |
302 SymbolTable::print_histogram(); | |
303 } | |
304 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) { | |
305 BytecodeCounter::print(); | |
306 } | |
307 if (PrintBytecodePairHistogram) { | |
308 BytecodePairHistogram::print(); | |
309 } | |
310 | |
311 if (PrintCodeCache) { | |
312 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
313 CodeCache::print(); | |
314 } | |
315 | |
316 if (PrintCodeCache2) { | |
317 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
318 CodeCache::print_internals(); | |
319 } | |
320 | |
321 if (PrintClassStatistics) { | |
322 SystemDictionary::print_class_statistics(); | |
323 } | |
324 if (PrintMethodStatistics) { | |
325 SystemDictionary::print_method_statistics(); | |
326 } | |
327 | |
328 if (PrintVtableStats) { | |
329 klassVtable::print_statistics(); | |
330 klassItable::print_statistics(); | |
331 } | |
332 if (VerifyOops) { | |
333 tty->print_cr("+VerifyOops count: %d", StubRoutines::verify_oop_count()); | |
334 } | |
335 | |
336 print_bytecode_count(); | |
2250 | 337 if (PrintMallocStatistics) { |
0 | 338 tty->print("allocation stats: "); |
339 alloc_stats.print(); | |
340 tty->cr(); | |
341 } | |
342 | |
343 if (PrintSystemDictionaryAtExit) { | |
344 SystemDictionary::print(); | |
345 } | |
346 | |
347 if (PrintBiasedLockingStatistics) { | |
348 BiasedLocking::print_counters(); | |
349 } | |
350 | |
351 #ifdef ENABLE_ZAP_DEAD_LOCALS | |
352 #ifdef COMPILER2 | |
353 if (ZapDeadCompiledLocals) { | |
354 tty->print_cr("Compile::CompiledZap_count = %d", Compile::CompiledZap_count); | |
355 tty->print_cr("OptoRuntime::ZapDeadCompiledLocals_count = %d", OptoRuntime::ZapDeadCompiledLocals_count); | |
356 } | |
357 #endif // COMPILER2 | |
358 #endif // ENABLE_ZAP_DEAD_LOCALS | |
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359 // Native memory tracking data |
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360 if (PrintNMTStatistics) { |
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361 if (MemTracker::is_on()) { |
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362 BaselineTTYOutputer outputer(tty); |
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363 MemTracker::print_memory_usage(outputer, K, false); |
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364 } else { |
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365 tty->print_cr(MemTracker::reason()); |
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366 } |
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367 } |
0 | 368 } |
369 | |
370 #else // PRODUCT MODE STATISTICS | |
371 | |
372 void print_statistics() { | |
373 | |
374 if (CITime) { | |
375 CompileBroker::print_times(); | |
376 } | |
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377 |
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378 if (PrintCodeCache) { |
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379 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
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380 CodeCache::print(); |
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381 } |
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382 |
0 | 383 #ifdef COMPILER2 |
384 if (PrintPreciseBiasedLockingStatistics) { | |
385 OptoRuntime::print_named_counters(); | |
386 } | |
387 #endif | |
388 if (PrintBiasedLockingStatistics) { | |
389 BiasedLocking::print_counters(); | |
390 } | |
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391 if (PrintNMethodStatistics) { |
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392 nmethod::print_statistics(); |
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393 } |
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394 |
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395 // Native memory tracking data |
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396 if (PrintNMTStatistics) { |
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397 if (MemTracker::is_on()) { |
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398 BaselineTTYOutputer outputer(tty); |
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399 MemTracker::print_memory_usage(outputer, K, false); |
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400 } else { |
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401 tty->print_cr(MemTracker::reason()); |
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402 } |
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403 } |
0 | 404 } |
405 | |
406 #endif | |
407 | |
408 | |
409 // Helper class for registering on_exit calls through JVM_OnExit | |
410 | |
411 extern "C" { | |
412 typedef void (*__exit_proc)(void); | |
413 } | |
414 | |
6197 | 415 class ExitProc : public CHeapObj<mtInternal> { |
0 | 416 private: |
417 __exit_proc _proc; | |
418 // void (*_proc)(void); | |
419 ExitProc* _next; | |
420 public: | |
421 // ExitProc(void (*proc)(void)) { | |
422 ExitProc(__exit_proc proc) { | |
423 _proc = proc; | |
424 _next = NULL; | |
425 } | |
426 void evaluate() { _proc(); } | |
427 ExitProc* next() const { return _next; } | |
428 void set_next(ExitProc* next) { _next = next; } | |
429 }; | |
430 | |
431 | |
432 // Linked list of registered on_exit procedures | |
433 | |
434 static ExitProc* exit_procs = NULL; | |
435 | |
436 | |
437 extern "C" { | |
438 void register_on_exit_function(void (*func)(void)) { | |
439 ExitProc *entry = new ExitProc(func); | |
440 // Classic vm does not throw an exception in case the allocation failed, | |
441 if (entry != NULL) { | |
442 entry->set_next(exit_procs); | |
443 exit_procs = entry; | |
444 } | |
445 } | |
446 } | |
447 | |
448 // Note: before_exit() can be executed only once, if more than one threads | |
449 // are trying to shutdown the VM at the same time, only one thread | |
450 // can run before_exit() and all other threads must wait. | |
451 void before_exit(JavaThread * thread) { | |
452 #define BEFORE_EXIT_NOT_RUN 0 | |
453 #define BEFORE_EXIT_RUNNING 1 | |
454 #define BEFORE_EXIT_DONE 2 | |
455 static jint volatile _before_exit_status = BEFORE_EXIT_NOT_RUN; | |
456 | |
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457 #ifdef GRAAL |
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458 GraalCompiler::instance()->exit(); |
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459 #endif |
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460 |
0 | 461 // Note: don't use a Mutex to guard the entire before_exit(), as |
462 // JVMTI post_thread_end_event and post_vm_death_event will run native code. | |
463 // A CAS or OSMutex would work just fine but then we need to manipulate | |
464 // thread state for Safepoint. Here we use Monitor wait() and notify_all() | |
465 // for synchronization. | |
466 { MutexLocker ml(BeforeExit_lock); | |
467 switch (_before_exit_status) { | |
468 case BEFORE_EXIT_NOT_RUN: | |
469 _before_exit_status = BEFORE_EXIT_RUNNING; | |
470 break; | |
471 case BEFORE_EXIT_RUNNING: | |
472 while (_before_exit_status == BEFORE_EXIT_RUNNING) { | |
473 BeforeExit_lock->wait(); | |
474 } | |
475 assert(_before_exit_status == BEFORE_EXIT_DONE, "invalid state"); | |
476 return; | |
477 case BEFORE_EXIT_DONE: | |
478 return; | |
479 } | |
480 } | |
481 | |
482 // The only difference between this and Win32's _onexit procs is that | |
483 // this version is invoked before any threads get killed. | |
484 ExitProc* current = exit_procs; | |
485 while (current != NULL) { | |
486 ExitProc* next = current->next(); | |
487 current->evaluate(); | |
488 delete current; | |
489 current = next; | |
490 } | |
491 | |
492 // Hang forever on exit if we're reporting an error. | |
493 if (ShowMessageBoxOnError && is_error_reported()) { | |
494 os::infinite_sleep(); | |
495 } | |
496 | |
497 // Terminate watcher thread - must before disenrolling any periodic task | |
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498 if (PeriodicTask::num_tasks() > 0) |
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499 WatcherThread::stop(); |
0 | 500 |
501 // Print statistics gathered (profiling ...) | |
502 if (Arguments::has_profile()) { | |
503 FlatProfiler::disengage(); | |
504 FlatProfiler::print(10); | |
505 } | |
506 | |
507 // shut down the StatSampler task | |
508 StatSampler::disengage(); | |
509 StatSampler::destroy(); | |
510 | |
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511 // We do not need to explicitly stop concurrent GC threads because the |
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512 // JVM will be taken down at a safepoint when such threads are inactive -- |
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513 // except for some concurrent G1 threads, see (comment in) |
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514 // Threads::destroy_vm(). |
0 | 515 |
516 // Print GC/heap related information. | |
517 if (PrintGCDetails) { | |
518 Universe::print(); | |
519 AdaptiveSizePolicyOutput(0); | |
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520 if (Verbose) { |
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521 ClassLoaderDataGraph::dump_on(gclog_or_tty); |
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522 } |
0 | 523 } |
524 | |
525 | |
526 if (Arguments::has_alloc_profile()) { | |
527 HandleMark hm; | |
528 // Do one last collection to enumerate all the objects | |
529 // allocated since the last one. | |
530 Universe::heap()->collect(GCCause::_allocation_profiler); | |
531 AllocationProfiler::disengage(); | |
532 AllocationProfiler::print(0); | |
533 } | |
534 | |
535 if (PrintBytecodeHistogram) { | |
536 BytecodeHistogram::print(); | |
537 } | |
538 | |
539 if (JvmtiExport::should_post_thread_life()) { | |
540 JvmtiExport::post_thread_end(thread); | |
541 } | |
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542 |
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543 EVENT_BEGIN(TraceEventThreadEnd, event); |
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544 EVENT_COMMIT(event, |
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545 EVENT_SET(event, javalangthread, java_lang_Thread::thread_id(thread->threadObj()))); |
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546 |
0 | 547 // Always call even when there are not JVMTI environments yet, since environments |
548 // may be attached late and JVMTI must track phases of VM execution | |
549 JvmtiExport::post_vm_death(); | |
550 Threads::shutdown_vm_agents(); | |
551 | |
552 // Terminate the signal thread | |
553 // Note: we don't wait until it actually dies. | |
554 os::terminate_signal_thread(); | |
555 | |
556 print_statistics(); | |
557 Universe::heap()->print_tracing_info(); | |
558 | |
559 { MutexLocker ml(BeforeExit_lock); | |
560 _before_exit_status = BEFORE_EXIT_DONE; | |
561 BeforeExit_lock->notify_all(); | |
562 } | |
563 | |
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564 // Shutdown NMT before exit. Otherwise, |
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565 // it will run into trouble when system destroys static variables. |
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566 MemTracker::shutdown(MemTracker::NMT_normal); |
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567 |
0 | 568 #undef BEFORE_EXIT_NOT_RUN |
569 #undef BEFORE_EXIT_RUNNING | |
570 #undef BEFORE_EXIT_DONE | |
571 } | |
572 | |
573 void vm_exit(int code) { | |
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574 Thread* thread = ThreadLocalStorage::is_initialized() ? |
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575 ThreadLocalStorage::get_thread_slow() : NULL; |
0 | 576 if (thread == NULL) { |
577 // we have serious problems -- just exit | |
578 vm_direct_exit(code); | |
579 } | |
580 | |
581 if (VMThread::vm_thread() != NULL) { | |
582 // Fire off a VM_Exit operation to bring VM to a safepoint and exit | |
583 VM_Exit op(code); | |
584 if (thread->is_Java_thread()) | |
585 ((JavaThread*)thread)->set_thread_state(_thread_in_vm); | |
586 VMThread::execute(&op); | |
587 // should never reach here; but in case something wrong with VM Thread. | |
588 vm_direct_exit(code); | |
589 } else { | |
590 // VM thread is gone, just exit | |
591 vm_direct_exit(code); | |
592 } | |
593 ShouldNotReachHere(); | |
594 } | |
595 | |
596 void notify_vm_shutdown() { | |
597 // For now, just a dtrace probe. | |
4006 | 598 #ifndef USDT2 |
0 | 599 HS_DTRACE_PROBE(hotspot, vm__shutdown); |
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600 HS_DTRACE_WORKAROUND_TAIL_CALL_BUG(); |
4006 | 601 #else /* USDT2 */ |
602 HOTSPOT_VM_SHUTDOWN(); | |
603 #endif /* USDT2 */ | |
0 | 604 } |
605 | |
606 void vm_direct_exit(int code) { | |
607 notify_vm_shutdown(); | |
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608 os::wait_for_keypress_at_exit(); |
0 | 609 ::exit(code); |
610 } | |
611 | |
612 void vm_perform_shutdown_actions() { | |
613 // Warning: do not call 'exit_globals()' here. All threads are still running. | |
614 // Calling 'exit_globals()' will disable thread-local-storage and cause all | |
615 // kinds of assertions to trigger in debug mode. | |
616 if (is_init_completed()) { | |
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617 Thread* thread = ThreadLocalStorage::is_initialized() ? |
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618 ThreadLocalStorage::get_thread_slow() : NULL; |
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619 if (thread != NULL && thread->is_Java_thread()) { |
0 | 620 // We are leaving the VM, set state to native (in case any OS exit |
621 // handlers call back to the VM) | |
622 JavaThread* jt = (JavaThread*)thread; | |
623 // Must always be walkable or have no last_Java_frame when in | |
624 // thread_in_native | |
625 jt->frame_anchor()->make_walkable(jt); | |
626 jt->set_thread_state(_thread_in_native); | |
627 } | |
628 } | |
629 notify_vm_shutdown(); | |
630 } | |
631 | |
632 void vm_shutdown() | |
633 { | |
634 vm_perform_shutdown_actions(); | |
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635 os::wait_for_keypress_at_exit(); |
0 | 636 os::shutdown(); |
637 } | |
638 | |
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639 void vm_abort(bool dump_core) { |
0 | 640 vm_perform_shutdown_actions(); |
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641 os::wait_for_keypress_at_exit(); |
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642 os::abort(dump_core); |
0 | 643 ShouldNotReachHere(); |
644 } | |
645 | |
646 void vm_notify_during_shutdown(const char* error, const char* message) { | |
647 if (error != NULL) { | |
648 tty->print_cr("Error occurred during initialization of VM"); | |
649 tty->print("%s", error); | |
650 if (message != NULL) { | |
651 tty->print_cr(": %s", message); | |
652 } | |
653 else { | |
654 tty->cr(); | |
655 } | |
656 } | |
657 if (ShowMessageBoxOnError && WizardMode) { | |
658 fatal("Error occurred during initialization of VM"); | |
659 } | |
660 } | |
661 | |
662 void vm_exit_during_initialization(Handle exception) { | |
663 tty->print_cr("Error occurred during initialization of VM"); | |
664 // If there are exceptions on this thread it must be cleared | |
665 // first and here. Any future calls to EXCEPTION_MARK requires | |
666 // that no pending exceptions exist. | |
667 Thread *THREAD = Thread::current(); | |
668 if (HAS_PENDING_EXCEPTION) { | |
669 CLEAR_PENDING_EXCEPTION; | |
670 } | |
671 java_lang_Throwable::print(exception, tty); | |
672 tty->cr(); | |
673 java_lang_Throwable::print_stack_trace(exception(), tty); | |
674 tty->cr(); | |
675 vm_notify_during_shutdown(NULL, NULL); | |
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676 |
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677 // Failure during initialization, we don't want to dump core |
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678 vm_abort(false); |
0 | 679 } |
680 | |
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681 void vm_exit_during_initialization(Symbol* ex, const char* message) { |
0 | 682 ResourceMark rm; |
683 vm_notify_during_shutdown(ex->as_C_string(), message); | |
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684 |
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685 // Failure during initialization, we don't want to dump core |
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686 vm_abort(false); |
0 | 687 } |
688 | |
689 void vm_exit_during_initialization(const char* error, const char* message) { | |
690 vm_notify_during_shutdown(error, message); | |
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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 | |
696 void vm_shutdown_during_initialization(const char* error, const char* message) { | |
697 vm_notify_during_shutdown(error, message); | |
698 vm_shutdown(); | |
699 } | |
700 | |
242 | 701 JDK_Version JDK_Version::_current; |
6181 | 702 const char* JDK_Version::_runtime_name; |
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703 const char* JDK_Version::_runtime_version; |
0 | 704 |
705 void JDK_Version::initialize() { | |
242 | 706 jdk_version_info info; |
707 assert(!_current.is_valid(), "Don't initialize twice"); | |
708 | |
0 | 709 void *lib_handle = os::native_java_library(); |
242 | 710 jdk_version_info_fn_t func = CAST_TO_FN_PTR(jdk_version_info_fn_t, |
711 os::dll_lookup(lib_handle, "JDK_GetVersionInfo0")); | |
0 | 712 |
713 if (func == NULL) { | |
714 // JDK older than 1.6 | |
242 | 715 _current._partially_initialized = true; |
716 } else { | |
717 (*func)(&info, sizeof(info)); | |
0 | 718 |
242 | 719 int major = JDK_VERSION_MAJOR(info.jdk_version); |
720 int minor = JDK_VERSION_MINOR(info.jdk_version); | |
721 int micro = JDK_VERSION_MICRO(info.jdk_version); | |
722 int build = JDK_VERSION_BUILD(info.jdk_version); | |
723 if (major == 1 && minor > 4) { | |
724 // We represent "1.5.0" as "5.0", but 1.4.2 as itself. | |
725 major = minor; | |
726 minor = micro; | |
727 micro = 0; | |
728 } | |
729 _current = JDK_Version(major, minor, micro, info.update_version, | |
730 info.special_update_version, build, | |
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731 info.thread_park_blocker == 1, |
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732 info.post_vm_init_hook_enabled == 1, |
eca1193ca245
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
3841
diff
changeset
|
733 info.pending_list_uses_discovered_field == 1); |
0 | 734 } |
242 | 735 } |
736 | |
737 void JDK_Version::fully_initialize( | |
738 uint8_t major, uint8_t minor, uint8_t micro, uint8_t update) { | |
739 // This is only called when current is less than 1.6 and we've gotten | |
740 // far enough in the initialization to determine the exact version. | |
741 assert(major < 6, "not needed for JDK version >= 6"); | |
742 assert(is_partially_initialized(), "must not initialize"); | |
743 if (major < 5) { | |
744 // JDK verison sequence: 1.2.x, 1.3.x, 1.4.x, 5.0.x, 6.0.x, etc. | |
745 micro = minor; | |
746 minor = major; | |
747 major = 1; | |
0 | 748 } |
242 | 749 _current = JDK_Version(major, minor, micro, update); |
0 | 750 } |
751 | |
752 void JDK_Version_init() { | |
753 JDK_Version::initialize(); | |
754 } | |
242 | 755 |
756 static int64_t encode_jdk_version(const JDK_Version& v) { | |
757 return | |
758 ((int64_t)v.major_version() << (BitsPerByte * 5)) | | |
759 ((int64_t)v.minor_version() << (BitsPerByte * 4)) | | |
760 ((int64_t)v.micro_version() << (BitsPerByte * 3)) | | |
761 ((int64_t)v.update_version() << (BitsPerByte * 2)) | | |
762 ((int64_t)v.special_update_version() << (BitsPerByte * 1)) | | |
763 ((int64_t)v.build_number() << (BitsPerByte * 0)); | |
764 } | |
765 | |
766 int JDK_Version::compare(const JDK_Version& other) const { | |
767 assert(is_valid() && other.is_valid(), "Invalid version (uninitialized?)"); | |
768 if (!is_partially_initialized() && other.is_partially_initialized()) { | |
769 return -(other.compare(*this)); // flip the comparators | |
770 } | |
771 assert(!other.is_partially_initialized(), "Not initialized yet"); | |
772 if (is_partially_initialized()) { | |
773 assert(other.major_version() >= 6, | |
774 "Invalid JDK version comparison during initialization"); | |
775 return -1; | |
776 } else { | |
777 uint64_t e = encode_jdk_version(*this); | |
778 uint64_t o = encode_jdk_version(other); | |
779 return (e > o) ? 1 : ((e == o) ? 0 : -1); | |
780 } | |
781 } | |
782 | |
783 void JDK_Version::to_string(char* buffer, size_t buflen) const { | |
784 size_t index = 0; | |
785 if (!is_valid()) { | |
786 jio_snprintf(buffer, buflen, "%s", "(uninitialized)"); | |
787 } else if (is_partially_initialized()) { | |
788 jio_snprintf(buffer, buflen, "%s", "(uninitialized) pre-1.6.0"); | |
789 } else { | |
790 index += jio_snprintf( | |
791 &buffer[index], buflen - index, "%d.%d", _major, _minor); | |
792 if (_micro > 0) { | |
793 index += jio_snprintf(&buffer[index], buflen - index, ".%d", _micro); | |
794 } | |
795 if (_update > 0) { | |
796 index += jio_snprintf(&buffer[index], buflen - index, "_%02d", _update); | |
797 } | |
798 if (_special > 0) { | |
799 index += jio_snprintf(&buffer[index], buflen - index, "%c", _special); | |
800 } | |
801 if (_build > 0) { | |
802 index += jio_snprintf(&buffer[index], buflen - index, "-b%02d", _build); | |
803 } | |
804 } | |
805 } |