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annotate src/share/vm/runtime/vm_operations.hpp @ 1972:f95d63e2154a
6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg
| author | stefank |
|---|---|
| date | Tue, 23 Nov 2010 13:22:55 -0800 |
| parents | ce6848d0666d |
| children | 3582bf76420e |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 1997, 2010, 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 #ifndef SHARE_VM_RUNTIME_VM_OPERATIONS_HPP |
| 26 #define SHARE_VM_RUNTIME_VM_OPERATIONS_HPP | |
| 27 | |
| 28 #include "classfile/javaClasses.hpp" | |
| 29 #include "memory/allocation.hpp" | |
| 30 #include "oops/oop.hpp" | |
| 31 #include "runtime/thread.hpp" | |
| 32 #include "utilities/top.hpp" | |
| 33 | |
| 0 | 34 // The following classes are used for operations |
| 35 // initiated by a Java thread but that must | |
| 36 // take place in the VMThread. | |
| 37 | |
| 38 #define VM_OP_ENUM(type) VMOp_##type, | |
| 39 | |
| 40 // Note: When new VM_XXX comes up, add 'XXX' to the template table. | |
| 41 #define VM_OPS_DO(template) \ | |
| 42 template(Dummy) \ | |
| 43 template(ThreadStop) \ | |
| 44 template(ThreadDump) \ | |
| 45 template(PrintThreads) \ | |
| 46 template(FindDeadlocks) \ | |
| 47 template(ForceSafepoint) \ | |
| 48 template(ForceAsyncSafepoint) \ | |
| 49 template(Deoptimize) \ | |
| 50 template(DeoptimizeFrame) \ | |
| 51 template(DeoptimizeAll) \ | |
| 52 template(ZombieAll) \ | |
| 1202 | 53 template(HandleFullCodeCache) \ |
| 0 | 54 template(Verify) \ |
| 55 template(PrintJNI) \ | |
| 56 template(HeapDumper) \ | |
| 57 template(DeoptimizeTheWorld) \ | |
| 58 template(GC_HeapInspection) \ | |
| 59 template(GenCollectFull) \ | |
| 60 template(GenCollectFullConcurrent) \ | |
| 61 template(GenCollectForAllocation) \ | |
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62 template(GenCollectForPermanentAllocation) \ |
| 0 | 63 template(ParallelGCFailedAllocation) \ |
| 64 template(ParallelGCFailedPermanentAllocation) \ | |
| 65 template(ParallelGCSystemGC) \ | |
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66 template(CGC_Operation) \ |
| 0 | 67 template(CMS_Initial_Mark) \ |
| 68 template(CMS_Final_Remark) \ | |
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69 template(G1CollectFull) \ |
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70 template(G1CollectForAllocation) \ |
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71 template(G1IncCollectionPause) \ |
| 0 | 72 template(EnableBiasedLocking) \ |
| 73 template(RevokeBias) \ | |
| 74 template(BulkRevokeBias) \ | |
| 75 template(PopulateDumpSharedSpace) \ | |
| 76 template(JNIFunctionTableCopier) \ | |
| 77 template(RedefineClasses) \ | |
| 78 template(GetOwnedMonitorInfo) \ | |
| 79 template(GetObjectMonitorUsage) \ | |
| 80 template(GetCurrentContendedMonitor) \ | |
| 81 template(GetStackTrace) \ | |
| 82 template(GetMultipleStackTraces) \ | |
| 83 template(GetAllStackTraces) \ | |
| 84 template(GetThreadListStackTraces) \ | |
| 85 template(GetFrameCount) \ | |
| 86 template(GetFrameLocation) \ | |
| 87 template(ChangeBreakpoints) \ | |
| 88 template(GetOrSetLocal) \ | |
| 89 template(GetCurrentLocation) \ | |
| 90 template(EnterInterpOnlyMode) \ | |
| 91 template(ChangeSingleStep) \ | |
| 92 template(HeapWalkOperation) \ | |
| 93 template(HeapIterateOperation) \ | |
| 94 template(ReportJavaOutOfMemory) \ | |
| 95 template(Exit) \ | |
| 96 | |
| 97 class VM_Operation: public CHeapObj { | |
| 98 public: | |
| 99 enum Mode { | |
| 100 _safepoint, // blocking, safepoint, vm_op C-heap allocated | |
| 101 _no_safepoint, // blocking, no safepoint, vm_op C-Heap allocated | |
| 102 _concurrent, // non-blocking, no safepoint, vm_op C-Heap allocated | |
| 103 _async_safepoint // non-blocking, safepoint, vm_op C-Heap allocated | |
| 104 }; | |
| 105 | |
| 106 enum VMOp_Type { | |
| 107 VM_OPS_DO(VM_OP_ENUM) | |
| 108 VMOp_Terminating | |
| 109 }; | |
| 110 | |
| 111 private: | |
| 112 Thread* _calling_thread; | |
| 113 ThreadPriority _priority; | |
| 114 long _timestamp; | |
| 115 VM_Operation* _next; | |
| 116 VM_Operation* _prev; | |
| 117 | |
| 118 // The VM operation name array | |
| 119 static const char* _names[]; | |
| 120 | |
| 121 public: | |
| 122 VM_Operation() { _calling_thread = NULL; _next = NULL; _prev = NULL; } | |
| 123 virtual ~VM_Operation() {} | |
| 124 | |
| 125 // VM operation support (used by VM thread) | |
| 126 Thread* calling_thread() const { return _calling_thread; } | |
| 127 ThreadPriority priority() { return _priority; } | |
| 128 void set_calling_thread(Thread* thread, ThreadPriority priority); | |
| 129 | |
| 130 long timestamp() const { return _timestamp; } | |
| 131 void set_timestamp(long timestamp) { _timestamp = timestamp; } | |
| 132 | |
| 133 // Called by VM thread - does in turn invoke doit(). Do not override this | |
| 134 void evaluate(); | |
| 135 | |
| 136 // evaluate() is called by the VMThread and in turn calls doit(). | |
| 137 // If the thread invoking VMThread::execute((VM_Operation*) is a JavaThread, | |
| 138 // doit_prologue() is called in that thread before transferring control to | |
| 139 // the VMThread. | |
| 140 // If doit_prologue() returns true the VM operation will proceed, and | |
| 141 // doit_epilogue() will be called by the JavaThread once the VM operation | |
| 142 // completes. If doit_prologue() returns false the VM operation is cancelled. | |
| 143 virtual void doit() = 0; | |
| 144 virtual bool doit_prologue() { return true; }; | |
| 145 virtual void doit_epilogue() {}; // Note: Not called if mode is: _concurrent | |
| 146 | |
| 147 // Type test | |
| 148 virtual bool is_methodCompiler() const { return false; } | |
| 149 | |
| 150 // Linking | |
| 151 VM_Operation *next() const { return _next; } | |
| 152 VM_Operation *prev() const { return _prev; } | |
| 153 void set_next(VM_Operation *next) { _next = next; } | |
| 154 void set_prev(VM_Operation *prev) { _prev = prev; } | |
| 155 | |
| 156 // Configuration. Override these appropriatly in subclasses. | |
| 157 virtual VMOp_Type type() const = 0; | |
| 158 virtual Mode evaluation_mode() const { return _safepoint; } | |
| 159 virtual bool allow_nested_vm_operations() const { return false; } | |
| 160 virtual bool is_cheap_allocated() const { return false; } | |
| 161 virtual void oops_do(OopClosure* f) { /* do nothing */ }; | |
| 162 | |
| 163 // CAUTION: <don't hang yourself with following rope> | |
| 164 // If you override these methods, make sure that the evaluation | |
| 165 // of these methods is race-free and non-blocking, since these | |
| 166 // methods may be evaluated either by the mutators or by the | |
| 167 // vm thread, either concurrently with mutators or with the mutators | |
| 168 // stopped. In other words, taking locks is verboten, and if there | |
| 169 // are any races in evaluating the conditions, they'd better be benign. | |
| 170 virtual bool evaluate_at_safepoint() const { | |
| 171 return evaluation_mode() == _safepoint || | |
| 172 evaluation_mode() == _async_safepoint; | |
| 173 } | |
| 174 virtual bool evaluate_concurrently() const { | |
| 175 return evaluation_mode() == _concurrent || | |
| 176 evaluation_mode() == _async_safepoint; | |
| 177 } | |
| 178 | |
| 179 // Debugging | |
| 180 void print_on_error(outputStream* st) const; | |
| 181 const char* name() const { return _names[type()]; } | |
| 182 static const char* name(int type) { | |
| 183 assert(type >= 0 && type < VMOp_Terminating, "invalid VM operation type"); | |
| 184 return _names[type]; | |
| 185 } | |
| 186 #ifndef PRODUCT | |
| 187 void print_on(outputStream* st) const { print_on_error(st); } | |
| 188 #endif | |
| 189 }; | |
| 190 | |
| 191 class VM_ThreadStop: public VM_Operation { | |
| 192 private: | |
| 193 oop _thread; // The Thread that the Throwable is thrown against | |
| 194 oop _throwable; // The Throwable thrown at the target Thread | |
| 195 public: | |
| 196 // All oops are passed as JNI handles, since there is no guarantee that a GC might happen before the | |
| 197 // VM operation is executed. | |
| 198 VM_ThreadStop(oop thread, oop throwable) { | |
| 199 _thread = thread; | |
| 200 _throwable = throwable; | |
| 201 } | |
| 202 VMOp_Type type() const { return VMOp_ThreadStop; } | |
| 203 oop target_thread() const { return _thread; } | |
| 204 oop throwable() const { return _throwable;} | |
| 205 void doit(); | |
| 206 // We deoptimize if top-most frame is compiled - this might require a C2I adapter to be generated | |
| 207 bool allow_nested_vm_operations() const { return true; } | |
| 208 Mode evaluation_mode() const { return _async_safepoint; } | |
| 209 bool is_cheap_allocated() const { return true; } | |
| 210 | |
| 211 // GC support | |
| 212 void oops_do(OopClosure* f) { | |
| 213 f->do_oop(&_thread); f->do_oop(&_throwable); | |
| 214 } | |
| 215 }; | |
| 216 | |
| 217 // dummy vm op, evaluated just to force a safepoint | |
| 218 class VM_ForceSafepoint: public VM_Operation { | |
| 219 public: | |
| 220 VM_ForceSafepoint() {} | |
| 221 void doit() {} | |
| 222 VMOp_Type type() const { return VMOp_ForceSafepoint; } | |
| 223 }; | |
| 224 | |
| 225 // dummy vm op, evaluated just to force a safepoint | |
| 226 class VM_ForceAsyncSafepoint: public VM_Operation { | |
| 227 public: | |
| 228 VM_ForceAsyncSafepoint() {} | |
| 229 void doit() {} | |
| 230 VMOp_Type type() const { return VMOp_ForceAsyncSafepoint; } | |
| 231 Mode evaluation_mode() const { return _async_safepoint; } | |
| 232 bool is_cheap_allocated() const { return true; } | |
| 233 }; | |
| 234 | |
| 235 class VM_Deoptimize: public VM_Operation { | |
| 236 public: | |
| 237 VM_Deoptimize() {} | |
| 238 VMOp_Type type() const { return VMOp_Deoptimize; } | |
| 239 void doit(); | |
| 240 bool allow_nested_vm_operations() const { return true; } | |
| 241 }; | |
| 242 | |
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243 |
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244 // Deopt helper that can deoptimize frames in threads other than the |
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245 // current thread. Only used through Deoptimization::deoptimize_frame. |
| 0 | 246 class VM_DeoptimizeFrame: public VM_Operation { |
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247 friend class Deoptimization; |
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248 |
| 0 | 249 private: |
| 250 JavaThread* _thread; | |
| 251 intptr_t* _id; | |
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252 VM_DeoptimizeFrame(JavaThread* thread, intptr_t* id); |
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253 |
| 0 | 254 public: |
| 255 VMOp_Type type() const { return VMOp_DeoptimizeFrame; } | |
| 256 void doit(); | |
| 257 bool allow_nested_vm_operations() const { return true; } | |
| 258 }; | |
| 259 | |
| 1202 | 260 class VM_HandleFullCodeCache: public VM_Operation { |
| 261 private: | |
| 262 bool _is_full; | |
| 263 public: | |
| 264 VM_HandleFullCodeCache(bool is_full) { _is_full = is_full; } | |
| 265 VMOp_Type type() const { return VMOp_HandleFullCodeCache; } | |
| 266 void doit(); | |
| 267 bool allow_nested_vm_operations() const { return true; } | |
| 268 }; | |
| 269 | |
| 0 | 270 #ifndef PRODUCT |
| 271 class VM_DeoptimizeAll: public VM_Operation { | |
| 272 private: | |
| 273 KlassHandle _dependee; | |
| 274 public: | |
| 275 VM_DeoptimizeAll() {} | |
| 276 VMOp_Type type() const { return VMOp_DeoptimizeAll; } | |
| 277 void doit(); | |
| 278 bool allow_nested_vm_operations() const { return true; } | |
| 279 }; | |
| 280 | |
| 281 | |
| 282 class VM_ZombieAll: public VM_Operation { | |
| 283 public: | |
| 284 VM_ZombieAll() {} | |
| 285 VMOp_Type type() const { return VMOp_ZombieAll; } | |
| 286 void doit(); | |
| 287 bool allow_nested_vm_operations() const { return true; } | |
| 288 }; | |
| 289 #endif // PRODUCT | |
| 290 | |
| 291 class VM_Verify: public VM_Operation { | |
| 292 private: | |
| 293 KlassHandle _dependee; | |
| 294 public: | |
| 295 VM_Verify() {} | |
| 296 VMOp_Type type() const { return VMOp_Verify; } | |
| 297 void doit(); | |
| 298 }; | |
| 299 | |
| 300 | |
| 301 class VM_PrintThreads: public VM_Operation { | |
| 302 private: | |
| 303 outputStream* _out; | |
| 304 bool _print_concurrent_locks; | |
| 305 public: | |
| 306 VM_PrintThreads() { _out = tty; _print_concurrent_locks = PrintConcurrentLocks; } | |
| 307 VM_PrintThreads(outputStream* out, bool print_concurrent_locks) { _out = out; _print_concurrent_locks = print_concurrent_locks; } | |
| 308 VMOp_Type type() const { return VMOp_PrintThreads; } | |
| 309 void doit(); | |
| 310 bool doit_prologue(); | |
| 311 void doit_epilogue(); | |
| 312 }; | |
| 313 | |
| 314 class VM_PrintJNI: public VM_Operation { | |
| 315 private: | |
| 316 outputStream* _out; | |
| 317 public: | |
| 318 VM_PrintJNI() { _out = tty; } | |
| 319 VM_PrintJNI(outputStream* out) { _out = out; } | |
| 320 VMOp_Type type() const { return VMOp_PrintJNI; } | |
| 321 void doit(); | |
| 322 }; | |
| 323 | |
| 324 class DeadlockCycle; | |
| 325 class VM_FindDeadlocks: public VM_Operation { | |
| 326 private: | |
| 327 bool _concurrent_locks; | |
| 328 DeadlockCycle* _deadlocks; | |
| 329 outputStream* _out; | |
| 330 | |
| 331 public: | |
| 332 VM_FindDeadlocks(bool concurrent_locks) : _concurrent_locks(concurrent_locks), _out(NULL), _deadlocks(NULL) {}; | |
| 333 VM_FindDeadlocks(outputStream* st) : _concurrent_locks(true), _out(st), _deadlocks(NULL) {}; | |
| 334 ~VM_FindDeadlocks(); | |
| 335 | |
| 336 DeadlockCycle* result() { return _deadlocks; }; | |
| 337 VMOp_Type type() const { return VMOp_FindDeadlocks; } | |
| 338 void doit(); | |
| 339 bool doit_prologue(); | |
| 340 }; | |
| 341 | |
| 342 class ThreadDumpResult; | |
| 343 class ThreadSnapshot; | |
| 344 class ThreadConcurrentLocks; | |
| 345 | |
| 346 class VM_ThreadDump : public VM_Operation { | |
| 347 private: | |
| 348 ThreadDumpResult* _result; | |
| 349 int _num_threads; | |
| 350 GrowableArray<instanceHandle>* _threads; | |
| 351 int _max_depth; | |
| 352 bool _with_locked_monitors; | |
| 353 bool _with_locked_synchronizers; | |
| 354 | |
| 355 ThreadSnapshot* snapshot_thread(JavaThread* java_thread, ThreadConcurrentLocks* tcl); | |
| 356 | |
| 357 public: | |
| 358 VM_ThreadDump(ThreadDumpResult* result, | |
| 359 int max_depth, // -1 indicates entire stack | |
| 360 bool with_locked_monitors, | |
| 361 bool with_locked_synchronizers); | |
| 362 | |
| 363 VM_ThreadDump(ThreadDumpResult* result, | |
| 364 GrowableArray<instanceHandle>* threads, | |
| 365 int num_threads, // -1 indicates entire stack | |
| 366 int max_depth, | |
| 367 bool with_locked_monitors, | |
| 368 bool with_locked_synchronizers); | |
| 369 | |
| 370 VMOp_Type type() const { return VMOp_ThreadDump; } | |
| 371 void doit(); | |
| 372 bool doit_prologue(); | |
| 373 void doit_epilogue(); | |
| 374 }; | |
| 375 | |
| 376 | |
| 377 class VM_Exit: public VM_Operation { | |
| 378 private: | |
| 379 int _exit_code; | |
| 380 static volatile bool _vm_exited; | |
| 381 static Thread * _shutdown_thread; | |
| 382 static void wait_if_vm_exited(); | |
| 383 public: | |
| 384 VM_Exit(int exit_code) { | |
| 385 _exit_code = exit_code; | |
| 386 } | |
| 387 static int wait_for_threads_in_native_to_block(); | |
| 388 static int set_vm_exited(); | |
| 389 static bool vm_exited() { return _vm_exited; } | |
| 390 static void block_if_vm_exited() { | |
| 391 if (_vm_exited) { | |
| 392 wait_if_vm_exited(); | |
| 393 } | |
| 394 } | |
| 395 VMOp_Type type() const { return VMOp_Exit; } | |
| 396 void doit(); | |
| 397 }; | |
| 1972 | 398 |
| 399 #endif // SHARE_VM_RUNTIME_VM_OPERATIONS_HPP |