Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/mutexLocker.cpp @ 18096:ca6d25be853b jdk8u25-b13
8044269: Analysis of archive files.
Summary: Add checksum verification.
Reviewed-by: iklam, dholmes, mschoene
| author | jiangli |
|---|---|
| date | Tue, 12 Aug 2014 17:46:16 -0400 |
| parents | 595c0f60d50d |
| children | 52b4284cb496 581e70386ec9 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 17764 | 2 * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "runtime/mutexLocker.hpp" | |
| 27 #include "runtime/safepoint.hpp" | |
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28 #include "runtime/thread.inline.hpp" |
| 1972 | 29 #include "runtime/threadLocalStorage.hpp" |
| 30 #include "runtime/vmThread.hpp" | |
| 0 | 31 |
| 32 // Mutexes used in the VM (see comment in mutexLocker.hpp): | |
| 33 // | |
| 34 // Note that the following pointers are effectively final -- after having been | |
| 35 // set at JVM startup-time, they should never be subsequently mutated. | |
| 36 // Instead of using pointers to malloc()ed monitors and mutexes we should consider | |
| 37 // eliminating the indirection and using instances instead. | |
| 38 // Consider using GCC's __read_mostly. | |
| 39 | |
| 40 Mutex* Patching_lock = NULL; | |
| 41 Monitor* SystemDictionary_lock = NULL; | |
| 42 Mutex* PackageTable_lock = NULL; | |
| 43 Mutex* CompiledIC_lock = NULL; | |
| 44 Mutex* InlineCacheBuffer_lock = NULL; | |
| 45 Mutex* VMStatistic_lock = NULL; | |
| 46 Mutex* JNIGlobalHandle_lock = NULL; | |
| 47 Mutex* JNIHandleBlockFreeList_lock = NULL; | |
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48 Mutex* MemberNameTable_lock = NULL; |
| 0 | 49 Mutex* JmethodIdCreation_lock = NULL; |
| 50 Mutex* JfieldIdCreation_lock = NULL; | |
| 51 Monitor* JNICritical_lock = NULL; | |
| 52 Mutex* JvmtiThreadState_lock = NULL; | |
| 53 Monitor* JvmtiPendingEvent_lock = NULL; | |
|
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54 Monitor* Heap_lock = NULL; |
| 0 | 55 Mutex* ExpandHeap_lock = NULL; |
| 56 Mutex* AdapterHandlerLibrary_lock = NULL; | |
| 57 Mutex* SignatureHandlerLibrary_lock = NULL; | |
| 58 Mutex* VtableStubs_lock = NULL; | |
| 59 Mutex* SymbolTable_lock = NULL; | |
| 60 Mutex* StringTable_lock = NULL; | |
| 17764 | 61 Monitor* StringDedupQueue_lock = NULL; |
| 62 Mutex* StringDedupTable_lock = NULL; | |
| 0 | 63 Mutex* CodeCache_lock = NULL; |
| 64 Mutex* MethodData_lock = NULL; | |
| 65 Mutex* RetData_lock = NULL; | |
| 66 Monitor* VMOperationQueue_lock = NULL; | |
| 67 Monitor* VMOperationRequest_lock = NULL; | |
| 68 Monitor* Safepoint_lock = NULL; | |
| 69 Monitor* SerializePage_lock = NULL; | |
| 70 Monitor* Threads_lock = NULL; | |
| 71 Monitor* CGC_lock = NULL; | |
| 72 Mutex* STS_init_lock = NULL; | |
| 73 Monitor* SLT_lock = NULL; | |
| 74 Monitor* iCMS_lock = NULL; | |
| 75 Monitor* FullGCCount_lock = NULL; | |
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76 Monitor* CMark_lock = NULL; |
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77 Mutex* CMRegionStack_lock = NULL; |
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78 Mutex* SATB_Q_FL_lock = NULL; |
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79 Monitor* SATB_Q_CBL_mon = NULL; |
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80 Mutex* Shared_SATB_Q_lock = NULL; |
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81 Mutex* DirtyCardQ_FL_lock = NULL; |
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82 Monitor* DirtyCardQ_CBL_mon = NULL; |
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83 Mutex* Shared_DirtyCardQ_lock = NULL; |
| 0 | 84 Mutex* ParGCRareEvent_lock = NULL; |
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85 Mutex* EvacFailureStack_lock = NULL; |
| 0 | 86 Mutex* DerivedPointerTableGC_lock = NULL; |
| 87 Mutex* Compile_lock = NULL; | |
| 88 Monitor* MethodCompileQueue_lock = NULL; | |
| 89 Monitor* CompileThread_lock = NULL; | |
| 90 Mutex* CompileTaskAlloc_lock = NULL; | |
| 91 Mutex* CompileStatistics_lock = NULL; | |
| 92 Mutex* MultiArray_lock = NULL; | |
| 93 Monitor* Terminator_lock = NULL; | |
| 94 Monitor* BeforeExit_lock = NULL; | |
| 95 Monitor* Notify_lock = NULL; | |
| 96 Monitor* Interrupt_lock = NULL; | |
| 97 Monitor* ProfileVM_lock = NULL; | |
| 98 Mutex* ProfilePrint_lock = NULL; | |
| 99 Mutex* ExceptionCache_lock = NULL; | |
| 100 Monitor* ObjAllocPost_lock = NULL; | |
| 101 Mutex* OsrList_lock = NULL; | |
| 102 #ifndef PRODUCT | |
| 103 Mutex* FullGCALot_lock = NULL; | |
| 104 #endif | |
| 105 | |
| 106 Mutex* Debug1_lock = NULL; | |
| 107 Mutex* Debug2_lock = NULL; | |
| 108 Mutex* Debug3_lock = NULL; | |
| 109 | |
| 110 Mutex* tty_lock = NULL; | |
| 111 | |
| 112 Mutex* RawMonitor_lock = NULL; | |
| 113 Mutex* PerfDataMemAlloc_lock = NULL; | |
| 114 Mutex* PerfDataManager_lock = NULL; | |
| 115 Mutex* OopMapCacheAlloc_lock = NULL; | |
| 116 | |
| 2152 | 117 Mutex* FreeList_lock = NULL; |
| 118 Monitor* SecondaryFreeList_lock = NULL; | |
| 119 Mutex* OldSets_lock = NULL; | |
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120 Monitor* RootRegionScan_lock = NULL; |
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121 Mutex* MMUTracker_lock = NULL; |
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122 Mutex* HotCardCache_lock = NULL; |
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123 |
| 0 | 124 Monitor* GCTaskManager_lock = NULL; |
| 125 | |
| 126 Mutex* Management_lock = NULL; | |
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127 Monitor* Service_lock = NULL; |
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128 Monitor* PeriodicTask_lock = NULL; |
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129 |
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130 #ifdef INCLUDE_TRACE |
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131 Mutex* JfrStacktrace_lock = NULL; |
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132 Monitor* JfrMsg_lock = NULL; |
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133 Mutex* JfrBuffer_lock = NULL; |
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134 Mutex* JfrStream_lock = NULL; |
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135 Mutex* JfrThreadGroups_lock = NULL; |
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136 #endif |
| 0 | 137 |
| 138 #define MAX_NUM_MUTEX 128 | |
| 139 static Monitor * _mutex_array[MAX_NUM_MUTEX]; | |
| 140 static int _num_mutex; | |
| 141 | |
| 142 #ifdef ASSERT | |
| 143 void assert_locked_or_safepoint(const Monitor * lock) { | |
| 144 // check if this thread owns the lock (common case) | |
| 145 if (IgnoreLockingAssertions) return; | |
| 146 assert(lock != NULL, "Need non-NULL lock"); | |
| 147 if (lock->owned_by_self()) return; | |
| 148 if (SafepointSynchronize::is_at_safepoint()) return; | |
| 149 if (!Universe::is_fully_initialized()) return; | |
| 150 // see if invoker of VM operation owns it | |
| 151 VM_Operation* op = VMThread::vm_operation(); | |
| 152 if (op != NULL && op->calling_thread() == lock->owner()) return; | |
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153 fatal(err_msg("must own lock %s", lock->name())); |
| 0 | 154 } |
| 155 | |
| 156 // a stronger assertion than the above | |
| 157 void assert_lock_strong(const Monitor * lock) { | |
| 158 if (IgnoreLockingAssertions) return; | |
| 159 assert(lock != NULL, "Need non-NULL lock"); | |
| 160 if (lock->owned_by_self()) return; | |
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161 fatal(err_msg("must own lock %s", lock->name())); |
| 0 | 162 } |
| 163 #endif | |
| 164 | |
| 165 #define def(var, type, pri, vm_block) { \ | |
| 166 var = new type(Mutex::pri, #var, vm_block); \ | |
| 167 assert(_num_mutex < MAX_NUM_MUTEX, \ | |
| 168 "increase MAX_NUM_MUTEX"); \ | |
| 169 _mutex_array[_num_mutex++] = var; \ | |
| 170 } | |
| 171 | |
| 172 void mutex_init() { | |
| 173 def(tty_lock , Mutex , event, true ); // allow to lock in VM | |
| 174 | |
| 175 def(CGC_lock , Monitor, special, true ); // coordinate between fore- and background GC | |
| 176 def(STS_init_lock , Mutex, leaf, true ); | |
| 177 if (UseConcMarkSweepGC) { | |
| 178 def(iCMS_lock , Monitor, special, true ); // CMS incremental mode start/stop notification | |
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179 } |
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180 if (UseConcMarkSweepGC || UseG1GC) { |
| 0 | 181 def(FullGCCount_lock , Monitor, leaf, true ); // in support of ExplicitGCInvokesConcurrent |
| 182 } | |
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183 if (UseG1GC) { |
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184 def(CMark_lock , Monitor, nonleaf, true ); // coordinate concurrent mark thread |
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185 def(CMRegionStack_lock , Mutex, leaf, true ); |
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186 def(SATB_Q_FL_lock , Mutex , special, true ); |
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187 def(SATB_Q_CBL_mon , Monitor, nonleaf, true ); |
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188 def(Shared_SATB_Q_lock , Mutex, nonleaf, true ); |
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189 |
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190 def(DirtyCardQ_FL_lock , Mutex , special, true ); |
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191 def(DirtyCardQ_CBL_mon , Monitor, nonleaf, true ); |
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192 def(Shared_DirtyCardQ_lock , Mutex, nonleaf, true ); |
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193 |
| 2152 | 194 def(FreeList_lock , Mutex, leaf , true ); |
| 195 def(SecondaryFreeList_lock , Monitor, leaf , true ); | |
| 196 def(OldSets_lock , Mutex , leaf , true ); | |
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197 def(RootRegionScan_lock , Monitor, leaf , true ); |
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198 def(MMUTracker_lock , Mutex , leaf , true ); |
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199 def(HotCardCache_lock , Mutex , special , true ); |
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200 def(EvacFailureStack_lock , Mutex , nonleaf , true ); |
| 17764 | 201 |
| 202 def(StringDedupQueue_lock , Monitor, leaf, true ); | |
| 203 def(StringDedupTable_lock , Mutex , leaf, true ); | |
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204 } |
| 0 | 205 def(ParGCRareEvent_lock , Mutex , leaf , true ); |
| 206 def(DerivedPointerTableGC_lock , Mutex, leaf, true ); | |
| 207 def(CodeCache_lock , Mutex , special, true ); | |
| 208 def(Interrupt_lock , Monitor, special, true ); // used for interrupt processing | |
| 209 def(RawMonitor_lock , Mutex, special, true ); | |
| 210 def(OopMapCacheAlloc_lock , Mutex, leaf, true ); // used for oop_map_cache allocation. | |
| 211 | |
| 212 def(Patching_lock , Mutex , special, true ); // used for safepointing and code patching. | |
| 213 def(ObjAllocPost_lock , Monitor, special, false); | |
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214 def(Service_lock , Monitor, special, true ); // used for service thread operations |
| 0 | 215 def(JmethodIdCreation_lock , Mutex , leaf, true ); // used for creating jmethodIDs. |
| 216 | |
| 217 def(SystemDictionary_lock , Monitor, leaf, true ); // lookups done by VM thread | |
| 218 def(PackageTable_lock , Mutex , leaf, false); | |
| 219 def(InlineCacheBuffer_lock , Mutex , leaf, true ); | |
| 220 def(VMStatistic_lock , Mutex , leaf, false); | |
| 221 def(ExpandHeap_lock , Mutex , leaf, true ); // Used during compilation by VM thread | |
| 222 def(JNIHandleBlockFreeList_lock , Mutex , leaf, true ); // handles are used by VM thread | |
| 223 def(SignatureHandlerLibrary_lock , Mutex , leaf, false); | |
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224 def(SymbolTable_lock , Mutex , leaf+2, true ); |
| 0 | 225 def(StringTable_lock , Mutex , leaf, true ); |
| 226 def(ProfilePrint_lock , Mutex , leaf, false); // serial profile printing | |
| 227 def(ExceptionCache_lock , Mutex , leaf, false); // serial profile printing | |
| 228 def(OsrList_lock , Mutex , leaf, true ); | |
| 229 def(Debug1_lock , Mutex , leaf, true ); | |
| 230 #ifndef PRODUCT | |
| 231 def(FullGCALot_lock , Mutex , leaf, false); // a lock to make FullGCALot MT safe | |
| 232 #endif | |
| 233 def(BeforeExit_lock , Monitor, leaf, true ); | |
| 234 def(PerfDataMemAlloc_lock , Mutex , leaf, true ); // used for allocating PerfData memory for performance data | |
| 235 def(PerfDataManager_lock , Mutex , leaf, true ); // used for synchronized access to PerfDataManager resources | |
| 236 | |
| 237 // CMS_modUnionTable_lock leaf | |
| 238 // CMS_bitMap_lock leaf + 1 | |
| 239 // CMS_freeList_lock leaf + 2 | |
| 240 | |
| 241 def(Safepoint_lock , Monitor, safepoint, true ); // locks SnippetCache_lock/Threads_lock | |
| 242 | |
| 243 def(Threads_lock , Monitor, barrier, true ); | |
| 244 | |
| 245 def(VMOperationQueue_lock , Monitor, nonleaf, true ); // VM_thread allowed to block on these | |
| 246 def(VMOperationRequest_lock , Monitor, nonleaf, true ); | |
| 247 def(RetData_lock , Mutex , nonleaf, false); | |
| 248 def(Terminator_lock , Monitor, nonleaf, true ); | |
| 249 def(VtableStubs_lock , Mutex , nonleaf, true ); | |
| 250 def(Notify_lock , Monitor, nonleaf, true ); | |
| 251 def(JNIGlobalHandle_lock , Mutex , nonleaf, true ); // locks JNIHandleBlockFreeList_lock | |
| 252 def(JNICritical_lock , Monitor, nonleaf, true ); // used for JNI critical regions | |
| 253 def(AdapterHandlerLibrary_lock , Mutex , nonleaf, true); | |
| 254 if (UseConcMarkSweepGC) { | |
| 255 def(SLT_lock , Monitor, nonleaf, false ); | |
| 256 // used in CMS GC for locking PLL lock | |
| 257 } | |
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258 def(Heap_lock , Monitor, nonleaf+1, false); |
| 0 | 259 def(JfieldIdCreation_lock , Mutex , nonleaf+1, true ); // jfieldID, Used in VM_Operation |
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260 def(MemberNameTable_lock , Mutex , nonleaf+1, false); // Used to protect MemberNameTable |
| 0 | 261 |
| 262 def(CompiledIC_lock , Mutex , nonleaf+2, false); // locks VtableStubs_lock, InlineCacheBuffer_lock | |
| 263 def(CompileTaskAlloc_lock , Mutex , nonleaf+2, true ); | |
| 264 def(CompileStatistics_lock , Mutex , nonleaf+2, false); | |
| 265 def(MultiArray_lock , Mutex , nonleaf+2, false); // locks SymbolTable_lock | |
| 266 | |
| 267 def(JvmtiThreadState_lock , Mutex , nonleaf+2, false); // Used by JvmtiThreadState/JvmtiEventController | |
| 268 def(JvmtiPendingEvent_lock , Monitor, nonleaf, false); // Used by JvmtiCodeBlobEvents | |
| 269 def(Management_lock , Mutex , nonleaf+2, false); // used for JVM management | |
| 270 | |
| 271 def(Compile_lock , Mutex , nonleaf+3, true ); | |
| 272 def(MethodData_lock , Mutex , nonleaf+3, false); | |
| 273 | |
| 274 def(MethodCompileQueue_lock , Monitor, nonleaf+4, true ); | |
| 275 def(Debug2_lock , Mutex , nonleaf+4, true ); | |
| 276 def(Debug3_lock , Mutex , nonleaf+4, true ); | |
| 10405 | 277 def(ProfileVM_lock , Monitor, special, false); // used for profiling of the VMThread |
| 0 | 278 def(CompileThread_lock , Monitor, nonleaf+5, false ); |
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279 def(PeriodicTask_lock , Monitor, nonleaf+5, true); |
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280 |
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281 #ifdef INCLUDE_TRACE |
| 10405 | 282 def(JfrMsg_lock , Monitor, leaf, true); |
| 283 def(JfrBuffer_lock , Mutex, nonleaf+1, true); | |
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284 def(JfrThreadGroups_lock , Mutex, nonleaf+1, true); |
| 10405 | 285 def(JfrStream_lock , Mutex, nonleaf+2, true); |
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8023457: Event based tracing framework needs a mutex for thread groups
mgronlun
parents:
10405
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changeset
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286 def(JfrStacktrace_lock , Mutex, special, true ); |
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739c309fd729
8023457: Event based tracing framework needs a mutex for thread groups
mgronlun
parents:
10405
diff
changeset
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287 #endif |
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739c309fd729
8023457: Event based tracing framework needs a mutex for thread groups
mgronlun
parents:
10405
diff
changeset
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288 |
| 0 | 289 } |
| 290 | |
| 291 GCMutexLocker::GCMutexLocker(Monitor * mutex) { | |
| 292 if (SafepointSynchronize::is_at_safepoint()) { | |
| 293 _locked = false; | |
| 294 } else { | |
| 295 _mutex = mutex; | |
| 296 _locked = true; | |
| 297 _mutex->lock(); | |
| 298 } | |
| 299 } | |
| 300 | |
| 301 // Print all mutexes/monitors that are currently owned by a thread; called | |
| 302 // by fatal error handler. | |
| 303 void print_owned_locks_on_error(outputStream* st) { | |
| 304 st->print("VM Mutex/Monitor currently owned by a thread: "); | |
| 305 bool none = true; | |
| 306 for (int i = 0; i < _num_mutex; i++) { | |
| 307 // see if it has an owner | |
| 308 if (_mutex_array[i]->owner() != NULL) { | |
| 309 if (none) { | |
| 310 // print format used by Mutex::print_on_error() | |
| 311 st->print_cr(" ([mutex/lock_event])"); | |
| 312 none = false; | |
| 313 } | |
| 314 _mutex_array[i]->print_on_error(st); | |
| 315 st->cr(); | |
| 316 } | |
| 317 } | |
| 318 if (none) st->print_cr("None"); | |
| 319 } |