Mercurial > hg > truffle
annotate src/share/vm/runtime/vm_operations.hpp @ 20804:7848fc12602b
Merge with jdk8u40-b25
| author | Gilles Duboscq <gilles.m.duboscq@oracle.com> |
|---|---|
| date | Tue, 07 Apr 2015 14:58:49 +0200 |
| parents | 52b4284cb496 227a9e5e4b4a |
| children |
| rev | line source |
|---|---|
| 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 * | |
|
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1202
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1202
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1202
diff
changeset
|
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) \ | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
53 template(UnlinkSymbols) \ |
| 0 | 54 template(Verify) \ |
| 55 template(PrintJNI) \ | |
| 56 template(HeapDumper) \ | |
| 57 template(DeoptimizeTheWorld) \ | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
58 template(CollectForMetadataAllocation) \ |
| 0 | 59 template(GC_HeapInspection) \ |
| 60 template(GenCollectFull) \ | |
| 61 template(GenCollectFullConcurrent) \ | |
| 62 template(GenCollectForAllocation) \ | |
| 63 template(ParallelGCFailedAllocation) \ | |
| 64 template(ParallelGCSystemGC) \ | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
139
diff
changeset
|
65 template(CGC_Operation) \ |
| 0 | 66 template(CMS_Initial_Mark) \ |
| 67 template(CMS_Final_Remark) \ | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
139
diff
changeset
|
68 template(G1CollectFull) \ |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
139
diff
changeset
|
69 template(G1CollectForAllocation) \ |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
139
diff
changeset
|
70 template(G1IncCollectionPause) \ |
|
20404
227a9e5e4b4a
8057536: Refactor G1 to allow context specific allocations
sjohanss
parents:
17867
diff
changeset
|
71 template(DestroyAllocationContext) \ |
| 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) \ | |
|
4800
94ec88ca68e2
7115199: Add event tracing hooks and Java Flight Recorder infrastructure
phh
parents:
2426
diff
changeset
|
95 template(JFRCheckpoint) \ |
| 0 | 96 template(Exit) \ |
|
8710
9058789475af
7107135: Stack guard pages are no more protected after loading a shared library with executable stack
iklam
parents:
6725
diff
changeset
|
97 template(LinuxDllLoad) \ |
| 17827 | 98 template(RotateGCLog) \ |
| 17867 | 99 template(WhiteBoxOperation) \ |
| 0 | 100 |
| 6197 | 101 class VM_Operation: public CHeapObj<mtInternal> { |
| 0 | 102 public: |
| 103 enum Mode { | |
| 104 _safepoint, // blocking, safepoint, vm_op C-heap allocated | |
| 105 _no_safepoint, // blocking, no safepoint, vm_op C-Heap allocated | |
| 106 _concurrent, // non-blocking, no safepoint, vm_op C-Heap allocated | |
| 107 _async_safepoint // non-blocking, safepoint, vm_op C-Heap allocated | |
| 108 }; | |
| 109 | |
| 110 enum VMOp_Type { | |
| 111 VM_OPS_DO(VM_OP_ENUM) | |
| 112 VMOp_Terminating | |
| 113 }; | |
| 114 | |
| 115 private: | |
| 116 Thread* _calling_thread; | |
| 117 ThreadPriority _priority; | |
| 118 long _timestamp; | |
| 119 VM_Operation* _next; | |
| 120 VM_Operation* _prev; | |
| 121 | |
| 122 // The VM operation name array | |
| 123 static const char* _names[]; | |
| 124 | |
| 125 public: | |
| 126 VM_Operation() { _calling_thread = NULL; _next = NULL; _prev = NULL; } | |
| 127 virtual ~VM_Operation() {} | |
| 128 | |
| 129 // VM operation support (used by VM thread) | |
| 130 Thread* calling_thread() const { return _calling_thread; } | |
| 131 ThreadPriority priority() { return _priority; } | |
| 132 void set_calling_thread(Thread* thread, ThreadPriority priority); | |
| 133 | |
| 134 long timestamp() const { return _timestamp; } | |
| 135 void set_timestamp(long timestamp) { _timestamp = timestamp; } | |
| 136 | |
| 137 // Called by VM thread - does in turn invoke doit(). Do not override this | |
| 138 void evaluate(); | |
| 139 | |
| 140 // evaluate() is called by the VMThread and in turn calls doit(). | |
| 141 // If the thread invoking VMThread::execute((VM_Operation*) is a JavaThread, | |
| 142 // doit_prologue() is called in that thread before transferring control to | |
| 143 // the VMThread. | |
| 144 // If doit_prologue() returns true the VM operation will proceed, and | |
| 145 // doit_epilogue() will be called by the JavaThread once the VM operation | |
| 146 // completes. If doit_prologue() returns false the VM operation is cancelled. | |
| 147 virtual void doit() = 0; | |
| 148 virtual bool doit_prologue() { return true; }; | |
| 149 virtual void doit_epilogue() {}; // Note: Not called if mode is: _concurrent | |
| 150 | |
| 151 // Type test | |
| 152 virtual bool is_methodCompiler() const { return false; } | |
| 153 | |
| 154 // Linking | |
| 155 VM_Operation *next() const { return _next; } | |
| 156 VM_Operation *prev() const { return _prev; } | |
| 157 void set_next(VM_Operation *next) { _next = next; } | |
| 158 void set_prev(VM_Operation *prev) { _prev = prev; } | |
| 159 | |
| 160 // Configuration. Override these appropriatly in subclasses. | |
| 161 virtual VMOp_Type type() const = 0; | |
| 162 virtual Mode evaluation_mode() const { return _safepoint; } | |
| 163 virtual bool allow_nested_vm_operations() const { return false; } | |
| 164 virtual bool is_cheap_allocated() const { return false; } | |
| 165 virtual void oops_do(OopClosure* f) { /* do nothing */ }; | |
| 166 | |
| 167 // CAUTION: <don't hang yourself with following rope> | |
| 168 // If you override these methods, make sure that the evaluation | |
| 169 // of these methods is race-free and non-blocking, since these | |
| 170 // methods may be evaluated either by the mutators or by the | |
| 171 // vm thread, either concurrently with mutators or with the mutators | |
| 172 // stopped. In other words, taking locks is verboten, and if there | |
| 173 // are any races in evaluating the conditions, they'd better be benign. | |
| 174 virtual bool evaluate_at_safepoint() const { | |
| 175 return evaluation_mode() == _safepoint || | |
| 176 evaluation_mode() == _async_safepoint; | |
| 177 } | |
| 178 virtual bool evaluate_concurrently() const { | |
| 179 return evaluation_mode() == _concurrent || | |
| 180 evaluation_mode() == _async_safepoint; | |
| 181 } | |
| 182 | |
| 10405 | 183 static const char* mode_to_string(Mode mode); |
| 184 | |
| 0 | 185 // Debugging |
| 186 void print_on_error(outputStream* st) const; | |
| 187 const char* name() const { return _names[type()]; } | |
| 188 static const char* name(int type) { | |
| 189 assert(type >= 0 && type < VMOp_Terminating, "invalid VM operation type"); | |
| 190 return _names[type]; | |
| 191 } | |
| 192 #ifndef PRODUCT | |
| 193 void print_on(outputStream* st) const { print_on_error(st); } | |
| 194 #endif | |
| 195 }; | |
| 196 | |
| 197 class VM_ThreadStop: public VM_Operation { | |
| 198 private: | |
| 199 oop _thread; // The Thread that the Throwable is thrown against | |
| 200 oop _throwable; // The Throwable thrown at the target Thread | |
| 201 public: | |
| 202 // All oops are passed as JNI handles, since there is no guarantee that a GC might happen before the | |
| 203 // VM operation is executed. | |
| 204 VM_ThreadStop(oop thread, oop throwable) { | |
| 205 _thread = thread; | |
| 206 _throwable = throwable; | |
| 207 } | |
| 208 VMOp_Type type() const { return VMOp_ThreadStop; } | |
| 209 oop target_thread() const { return _thread; } | |
| 210 oop throwable() const { return _throwable;} | |
| 211 void doit(); | |
| 212 // We deoptimize if top-most frame is compiled - this might require a C2I adapter to be generated | |
| 213 bool allow_nested_vm_operations() const { return true; } | |
| 214 Mode evaluation_mode() const { return _async_safepoint; } | |
| 215 bool is_cheap_allocated() const { return true; } | |
| 216 | |
| 217 // GC support | |
| 218 void oops_do(OopClosure* f) { | |
| 219 f->do_oop(&_thread); f->do_oop(&_throwable); | |
| 220 } | |
| 221 }; | |
| 222 | |
| 223 // dummy vm op, evaluated just to force a safepoint | |
| 224 class VM_ForceSafepoint: public VM_Operation { | |
| 225 public: | |
| 226 VM_ForceSafepoint() {} | |
| 227 void doit() {} | |
| 228 VMOp_Type type() const { return VMOp_ForceSafepoint; } | |
| 229 }; | |
| 230 | |
| 231 // dummy vm op, evaluated just to force a safepoint | |
| 232 class VM_ForceAsyncSafepoint: public VM_Operation { | |
| 233 public: | |
| 234 VM_ForceAsyncSafepoint() {} | |
| 235 void doit() {} | |
| 236 VMOp_Type type() const { return VMOp_ForceAsyncSafepoint; } | |
| 237 Mode evaluation_mode() const { return _async_safepoint; } | |
| 238 bool is_cheap_allocated() const { return true; } | |
| 239 }; | |
| 240 | |
| 241 class VM_Deoptimize: public VM_Operation { | |
| 242 public: | |
| 243 VM_Deoptimize() {} | |
| 244 VMOp_Type type() const { return VMOp_Deoptimize; } | |
| 245 void doit(); | |
| 246 bool allow_nested_vm_operations() const { return true; } | |
| 247 }; | |
| 248 | |
|
1905
ce6848d0666d
6968367: can_post_on_exceptions is still using VM_DeoptimizeFrame in some places
never
parents:
1552
diff
changeset
|
249 |
|
ce6848d0666d
6968367: can_post_on_exceptions is still using VM_DeoptimizeFrame in some places
never
parents:
1552
diff
changeset
|
250 // Deopt helper that can deoptimize frames in threads other than the |
|
ce6848d0666d
6968367: can_post_on_exceptions is still using VM_DeoptimizeFrame in some places
never
parents:
1552
diff
changeset
|
251 // current thread. Only used through Deoptimization::deoptimize_frame. |
| 0 | 252 class VM_DeoptimizeFrame: public VM_Operation { |
|
1905
ce6848d0666d
6968367: can_post_on_exceptions is still using VM_DeoptimizeFrame in some places
never
parents:
1552
diff
changeset
|
253 friend class Deoptimization; |
|
ce6848d0666d
6968367: can_post_on_exceptions is still using VM_DeoptimizeFrame in some places
never
parents:
1552
diff
changeset
|
254 |
| 0 | 255 private: |
| 256 JavaThread* _thread; | |
| 257 intptr_t* _id; | |
|
5110
0ebca2e35ca5
more preparations for disabling runtime feedback selectively based on deoptimization history
Christian Haeubl <christian.haeubl@oracle.com>
parents:
4800
diff
changeset
|
258 int _reason; |
|
0ebca2e35ca5
more preparations for disabling runtime feedback selectively based on deoptimization history
Christian Haeubl <christian.haeubl@oracle.com>
parents:
4800
diff
changeset
|
259 VM_DeoptimizeFrame(JavaThread* thread, intptr_t* id, int reason); |
|
1905
ce6848d0666d
6968367: can_post_on_exceptions is still using VM_DeoptimizeFrame in some places
never
parents:
1552
diff
changeset
|
260 |
| 0 | 261 public: |
| 262 VMOp_Type type() const { return VMOp_DeoptimizeFrame; } | |
| 263 void doit(); | |
| 264 bool allow_nested_vm_operations() const { return true; } | |
| 265 }; | |
| 266 | |
| 267 #ifndef PRODUCT | |
| 268 class VM_DeoptimizeAll: public VM_Operation { | |
| 269 private: | |
| 270 KlassHandle _dependee; | |
| 271 public: | |
| 272 VM_DeoptimizeAll() {} | |
| 273 VMOp_Type type() const { return VMOp_DeoptimizeAll; } | |
| 274 void doit(); | |
| 275 bool allow_nested_vm_operations() const { return true; } | |
| 276 }; | |
| 277 | |
| 278 | |
| 279 class VM_ZombieAll: public VM_Operation { | |
| 280 public: | |
| 281 VM_ZombieAll() {} | |
| 282 VMOp_Type type() const { return VMOp_ZombieAll; } | |
| 283 void doit(); | |
| 284 bool allow_nested_vm_operations() const { return true; } | |
| 285 }; | |
| 286 #endif // PRODUCT | |
| 287 | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
288 class VM_UnlinkSymbols: public VM_Operation { |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
289 public: |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
290 VM_UnlinkSymbols() {} |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
291 VMOp_Type type() const { return VMOp_UnlinkSymbols; } |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
292 void doit(); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
293 bool allow_nested_vm_operations() const { return true; } |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
294 }; |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
295 |
| 0 | 296 class VM_Verify: public VM_Operation { |
| 297 private: | |
|
9071
68fe50d4f1d5
8011343: Add new flag for verifying the heap during startup
johnc
parents:
8710
diff
changeset
|
298 bool _silent; |
| 0 | 299 public: |
|
10186
b06ac540229e
8013132: Add a flag to turn off the output of the verbose verification code
stefank
parents:
9071
diff
changeset
|
300 VM_Verify(bool silent = VerifySilently) : _silent(silent) {} |
| 0 | 301 VMOp_Type type() const { return VMOp_Verify; } |
| 302 void doit(); | |
| 303 }; | |
| 304 | |
| 305 | |
| 306 class VM_PrintThreads: public VM_Operation { | |
| 307 private: | |
| 308 outputStream* _out; | |
| 309 bool _print_concurrent_locks; | |
| 310 public: | |
| 311 VM_PrintThreads() { _out = tty; _print_concurrent_locks = PrintConcurrentLocks; } | |
| 312 VM_PrintThreads(outputStream* out, bool print_concurrent_locks) { _out = out; _print_concurrent_locks = print_concurrent_locks; } | |
| 313 VMOp_Type type() const { return VMOp_PrintThreads; } | |
| 314 void doit(); | |
| 315 bool doit_prologue(); | |
| 316 void doit_epilogue(); | |
| 317 }; | |
| 318 | |
| 319 class VM_PrintJNI: public VM_Operation { | |
| 320 private: | |
| 321 outputStream* _out; | |
| 322 public: | |
| 323 VM_PrintJNI() { _out = tty; } | |
| 324 VM_PrintJNI(outputStream* out) { _out = out; } | |
| 325 VMOp_Type type() const { return VMOp_PrintJNI; } | |
| 326 void doit(); | |
| 327 }; | |
| 328 | |
| 329 class DeadlockCycle; | |
| 330 class VM_FindDeadlocks: public VM_Operation { | |
| 331 private: | |
| 332 bool _concurrent_locks; | |
| 333 DeadlockCycle* _deadlocks; | |
| 334 outputStream* _out; | |
| 335 | |
| 336 public: | |
| 337 VM_FindDeadlocks(bool concurrent_locks) : _concurrent_locks(concurrent_locks), _out(NULL), _deadlocks(NULL) {}; | |
| 338 VM_FindDeadlocks(outputStream* st) : _concurrent_locks(true), _out(st), _deadlocks(NULL) {}; | |
| 339 ~VM_FindDeadlocks(); | |
| 340 | |
| 341 DeadlockCycle* result() { return _deadlocks; }; | |
| 342 VMOp_Type type() const { return VMOp_FindDeadlocks; } | |
| 343 void doit(); | |
| 344 bool doit_prologue(); | |
| 345 }; | |
| 346 | |
| 347 class ThreadDumpResult; | |
| 348 class ThreadSnapshot; | |
| 349 class ThreadConcurrentLocks; | |
| 350 | |
| 351 class VM_ThreadDump : public VM_Operation { | |
| 352 private: | |
| 353 ThreadDumpResult* _result; | |
| 354 int _num_threads; | |
| 355 GrowableArray<instanceHandle>* _threads; | |
| 356 int _max_depth; | |
| 357 bool _with_locked_monitors; | |
| 358 bool _with_locked_synchronizers; | |
| 359 | |
| 360 ThreadSnapshot* snapshot_thread(JavaThread* java_thread, ThreadConcurrentLocks* tcl); | |
| 361 | |
| 362 public: | |
| 363 VM_ThreadDump(ThreadDumpResult* result, | |
| 364 int max_depth, // -1 indicates entire stack | |
| 365 bool with_locked_monitors, | |
| 366 bool with_locked_synchronizers); | |
| 367 | |
| 368 VM_ThreadDump(ThreadDumpResult* result, | |
| 369 GrowableArray<instanceHandle>* threads, | |
| 370 int num_threads, // -1 indicates entire stack | |
| 371 int max_depth, | |
| 372 bool with_locked_monitors, | |
| 373 bool with_locked_synchronizers); | |
| 374 | |
| 375 VMOp_Type type() const { return VMOp_ThreadDump; } | |
| 376 void doit(); | |
| 377 bool doit_prologue(); | |
| 378 void doit_epilogue(); | |
| 379 }; | |
| 380 | |
| 381 | |
| 382 class VM_Exit: public VM_Operation { | |
| 383 private: | |
| 384 int _exit_code; | |
| 385 static volatile bool _vm_exited; | |
| 386 static Thread * _shutdown_thread; | |
| 387 static void wait_if_vm_exited(); | |
| 388 public: | |
| 389 VM_Exit(int exit_code) { | |
| 390 _exit_code = exit_code; | |
| 391 } | |
| 392 static int wait_for_threads_in_native_to_block(); | |
| 393 static int set_vm_exited(); | |
| 394 static bool vm_exited() { return _vm_exited; } | |
| 395 static void block_if_vm_exited() { | |
| 396 if (_vm_exited) { | |
| 397 wait_if_vm_exited(); | |
| 398 } | |
| 399 } | |
| 400 VMOp_Type type() const { return VMOp_Exit; } | |
| 401 void doit(); | |
| 402 }; | |
| 1972 | 403 |
| 17827 | 404 |
| 405 class VM_RotateGCLog: public VM_Operation { | |
| 406 private: | |
| 407 outputStream* _out; | |
| 408 | |
| 409 public: | |
| 410 VM_RotateGCLog(outputStream* st) : _out(st) {} | |
| 411 VMOp_Type type() const { return VMOp_RotateGCLog; } | |
| 412 void doit() { gclog_or_tty->rotate_log(true, _out); } | |
| 413 }; | |
| 414 | |
| 1972 | 415 #endif // SHARE_VM_RUNTIME_VM_OPERATIONS_HPP |