121 Monitor* RootRegionScan_lock = NULL;
122
123 Monitor* GCTaskManager_lock = NULL;
124
125 Mutex* Management_lock = NULL;
126 Monitor* Service_lock = NULL;
127 Monitor* PeriodicTask_lock = NULL;
128 Monitor* RedefineClasses_lock = NULL;
129
130 #if INCLUDE_TRACE
131 Mutex* JfrStacktrace_lock = NULL;
132 Monitor* JfrMsg_lock = NULL;
133 Mutex* JfrBuffer_lock = NULL;
134 Mutex* JfrStream_lock = NULL;
135 #endif
136
137 #ifndef SUPPORTS_NATIVE_CX8
138 Mutex* UnsafeJlong_lock = NULL;
139 #endif
140
141 #define MAX_NUM_MUTEX 128
142 static Monitor * _mutex_array[MAX_NUM_MUTEX];
143 static int _num_mutex;
144
145 #ifdef ASSERT
146 void assert_locked_or_safepoint(const Monitor * lock) {
147 // check if this thread owns the lock (common case)
148 if (IgnoreLockingAssertions) return;
149 assert(lock != NULL, "Need non-NULL lock");
150 if (lock->owned_by_self()) return;
151 if (SafepointSynchronize::is_at_safepoint()) return;
152 if (!Universe::is_fully_initialized()) return;
153 // see if invoker of VM operation owns it
154 VM_Operation* op = VMThread::vm_operation();
155 if (op != NULL && op->calling_thread() == lock->owner()) return;
156 fatal("must own lock %s", lock->name());
157 }
158
159 // a stronger assertion than the above
160 void assert_lock_strong(const Monitor * lock) {
192
193 def(FreeList_lock , PaddedMutex , leaf , true, Monitor::_safepoint_check_never);
194 def(SecondaryFreeList_lock , PaddedMonitor, leaf , true, Monitor::_safepoint_check_never);
195 def(OldSets_lock , PaddedMutex , leaf , true, Monitor::_safepoint_check_never);
196 def(RootRegionScan_lock , PaddedMonitor, leaf , true, Monitor::_safepoint_check_never);
197
198 def(StringDedupQueue_lock , PaddedMonitor, leaf, true, Monitor::_safepoint_check_never);
199 def(StringDedupTable_lock , PaddedMutex , leaf, true, Monitor::_safepoint_check_never);
200
201 def(MarkStackFreeList_lock , PaddedMutex , leaf , true, Monitor::_safepoint_check_never);
202 def(MarkStackChunkList_lock , PaddedMutex , leaf , true, Monitor::_safepoint_check_never);
203 }
204 def(ParGCRareEvent_lock , PaddedMutex , leaf , true, Monitor::_safepoint_check_sometimes);
205 def(DerivedPointerTableGC_lock , PaddedMutex , leaf, true, Monitor::_safepoint_check_never);
206 #ifdef INCLUDE_ALL_GCS
207 def(CGCPhaseManager_lock , PaddedMonitor, leaf, false, Monitor::_safepoint_check_sometimes);
208 #endif
209 def(CodeCache_lock , PaddedMutex , special, true, Monitor::_safepoint_check_never);
210 def(RawMonitor_lock , PaddedMutex , special, true, Monitor::_safepoint_check_never);
211 def(OopMapCacheAlloc_lock , PaddedMutex , leaf, true, Monitor::_safepoint_check_always); // used for oop_map_cache allocation.
212
213 def(Patching_lock , PaddedMutex , special, true, Monitor::_safepoint_check_never); // used for safepointing and code patching.
214 def(Service_lock , PaddedMonitor, special, true, Monitor::_safepoint_check_never); // used for service thread operations
215 def(JmethodIdCreation_lock , PaddedMutex , leaf, true, Monitor::_safepoint_check_always); // used for creating jmethodIDs.
216
217 def(SystemDictionary_lock , PaddedMonitor, leaf, true, Monitor::_safepoint_check_always); // lookups done by VM thread
218 def(Module_lock , PaddedMutex , leaf+2, true, Monitor::_safepoint_check_always);
219 def(InlineCacheBuffer_lock , PaddedMutex , leaf, true, Monitor::_safepoint_check_always);
220 def(VMStatistic_lock , PaddedMutex , leaf, false, Monitor::_safepoint_check_always);
221 def(ExpandHeap_lock , PaddedMutex , leaf, true, Monitor::_safepoint_check_always); // Used during compilation by VM thread
222 def(JNIHandleBlockFreeList_lock , PaddedMutex , leaf, true, Monitor::_safepoint_check_never); // handles are used by VM thread
223 def(SignatureHandlerLibrary_lock , PaddedMutex , leaf, false, Monitor::_safepoint_check_always);
224 def(SymbolTable_lock , PaddedMutex , leaf+2, true, Monitor::_safepoint_check_always);
225 def(StringTable_lock , PaddedMutex , leaf, true, Monitor::_safepoint_check_always);
226 def(ProfilePrint_lock , PaddedMutex , leaf, false, Monitor::_safepoint_check_always); // serial profile printing
227 def(ExceptionCache_lock , PaddedMutex , leaf, false, Monitor::_safepoint_check_always); // serial profile printing
228 def(OsrList_lock , PaddedMutex , leaf, true, Monitor::_safepoint_check_never);
229 def(Debug1_lock , PaddedMutex , leaf, true, Monitor::_safepoint_check_never);
230 #ifndef PRODUCT
231 def(FullGCALot_lock , PaddedMutex , leaf, false, Monitor::_safepoint_check_always); // a lock to make FullGCALot MT safe
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121 Monitor* RootRegionScan_lock = NULL;
122
123 Monitor* GCTaskManager_lock = NULL;
124
125 Mutex* Management_lock = NULL;
126 Monitor* Service_lock = NULL;
127 Monitor* PeriodicTask_lock = NULL;
128 Monitor* RedefineClasses_lock = NULL;
129
130 #if INCLUDE_TRACE
131 Mutex* JfrStacktrace_lock = NULL;
132 Monitor* JfrMsg_lock = NULL;
133 Mutex* JfrBuffer_lock = NULL;
134 Mutex* JfrStream_lock = NULL;
135 #endif
136
137 #ifndef SUPPORTS_NATIVE_CX8
138 Mutex* UnsafeJlong_lock = NULL;
139 #endif
140
141 Mutex* MetaspaceExpand_lock = NULL;
142
143 #define MAX_NUM_MUTEX 128
144 static Monitor * _mutex_array[MAX_NUM_MUTEX];
145 static int _num_mutex;
146
147 #ifdef ASSERT
148 void assert_locked_or_safepoint(const Monitor * lock) {
149 // check if this thread owns the lock (common case)
150 if (IgnoreLockingAssertions) return;
151 assert(lock != NULL, "Need non-NULL lock");
152 if (lock->owned_by_self()) return;
153 if (SafepointSynchronize::is_at_safepoint()) return;
154 if (!Universe::is_fully_initialized()) return;
155 // see if invoker of VM operation owns it
156 VM_Operation* op = VMThread::vm_operation();
157 if (op != NULL && op->calling_thread() == lock->owner()) return;
158 fatal("must own lock %s", lock->name());
159 }
160
161 // a stronger assertion than the above
162 void assert_lock_strong(const Monitor * lock) {
194
195 def(FreeList_lock , PaddedMutex , leaf , true, Monitor::_safepoint_check_never);
196 def(SecondaryFreeList_lock , PaddedMonitor, leaf , true, Monitor::_safepoint_check_never);
197 def(OldSets_lock , PaddedMutex , leaf , true, Monitor::_safepoint_check_never);
198 def(RootRegionScan_lock , PaddedMonitor, leaf , true, Monitor::_safepoint_check_never);
199
200 def(StringDedupQueue_lock , PaddedMonitor, leaf, true, Monitor::_safepoint_check_never);
201 def(StringDedupTable_lock , PaddedMutex , leaf, true, Monitor::_safepoint_check_never);
202
203 def(MarkStackFreeList_lock , PaddedMutex , leaf , true, Monitor::_safepoint_check_never);
204 def(MarkStackChunkList_lock , PaddedMutex , leaf , true, Monitor::_safepoint_check_never);
205 }
206 def(ParGCRareEvent_lock , PaddedMutex , leaf , true, Monitor::_safepoint_check_sometimes);
207 def(DerivedPointerTableGC_lock , PaddedMutex , leaf, true, Monitor::_safepoint_check_never);
208 #ifdef INCLUDE_ALL_GCS
209 def(CGCPhaseManager_lock , PaddedMonitor, leaf, false, Monitor::_safepoint_check_sometimes);
210 #endif
211 def(CodeCache_lock , PaddedMutex , special, true, Monitor::_safepoint_check_never);
212 def(RawMonitor_lock , PaddedMutex , special, true, Monitor::_safepoint_check_never);
213 def(OopMapCacheAlloc_lock , PaddedMutex , leaf, true, Monitor::_safepoint_check_always); // used for oop_map_cache allocation.
214
215 def(MetaspaceExpand_lock , PaddedMutex , leaf-1, true, Monitor::_safepoint_check_never);
216
217 def(Patching_lock , PaddedMutex , special, true, Monitor::_safepoint_check_never); // used for safepointing and code patching.
218 def(Service_lock , PaddedMonitor, special, true, Monitor::_safepoint_check_never); // used for service thread operations
219 def(JmethodIdCreation_lock , PaddedMutex , leaf, true, Monitor::_safepoint_check_always); // used for creating jmethodIDs.
220
221 def(SystemDictionary_lock , PaddedMonitor, leaf, true, Monitor::_safepoint_check_always); // lookups done by VM thread
222 def(Module_lock , PaddedMutex , leaf+2, true, Monitor::_safepoint_check_always);
223 def(InlineCacheBuffer_lock , PaddedMutex , leaf, true, Monitor::_safepoint_check_always);
224 def(VMStatistic_lock , PaddedMutex , leaf, false, Monitor::_safepoint_check_always);
225 def(ExpandHeap_lock , PaddedMutex , leaf, true, Monitor::_safepoint_check_always); // Used during compilation by VM thread
226 def(JNIHandleBlockFreeList_lock , PaddedMutex , leaf, true, Monitor::_safepoint_check_never); // handles are used by VM thread
227 def(SignatureHandlerLibrary_lock , PaddedMutex , leaf, false, Monitor::_safepoint_check_always);
228 def(SymbolTable_lock , PaddedMutex , leaf+2, true, Monitor::_safepoint_check_always);
229 def(StringTable_lock , PaddedMutex , leaf, true, Monitor::_safepoint_check_always);
230 def(ProfilePrint_lock , PaddedMutex , leaf, false, Monitor::_safepoint_check_always); // serial profile printing
231 def(ExceptionCache_lock , PaddedMutex , leaf, false, Monitor::_safepoint_check_always); // serial profile printing
232 def(OsrList_lock , PaddedMutex , leaf, true, Monitor::_safepoint_check_never);
233 def(Debug1_lock , PaddedMutex , leaf, true, Monitor::_safepoint_check_never);
234 #ifndef PRODUCT
235 def(FullGCALot_lock , PaddedMutex , leaf, false, Monitor::_safepoint_check_always); // a lock to make FullGCALot MT safe
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