Mercurial > hg > truffle
annotate src/share/vm/runtime/thread.hpp @ 16625:d2aa48d54db5
don't allow blocking compilation requests to Graal if Graal itself is not yet initialized
author | Doug Simon <doug.simon@oracle.com> |
---|---|
date | Wed, 30 Jul 2014 21:48:03 +0200 |
parents | 4481cf549cfc |
children | a29e6e7b7a86 |
rev | line source |
---|---|
0 | 1 /* |
14909 | 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:
1368
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1368
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:
1368
diff
changeset
|
21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_RUNTIME_THREAD_HPP |
26 #define SHARE_VM_RUNTIME_THREAD_HPP | |
27 | |
28 #include "memory/allocation.hpp" | |
29 #include "memory/threadLocalAllocBuffer.hpp" | |
30 #include "oops/oop.hpp" | |
31 #include "prims/jni.h" | |
32 #include "prims/jvmtiExport.hpp" | |
33 #include "runtime/frame.hpp" | |
34 #include "runtime/javaFrameAnchor.hpp" | |
35 #include "runtime/jniHandles.hpp" | |
36 #include "runtime/mutexLocker.hpp" | |
37 #include "runtime/os.hpp" | |
38 #include "runtime/osThread.hpp" | |
39 #include "runtime/park.hpp" | |
40 #include "runtime/safepoint.hpp" | |
41 #include "runtime/stubRoutines.hpp" | |
42 #include "runtime/threadLocalStorage.hpp" | |
43 #include "runtime/unhandledOops.hpp" | |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7179
diff
changeset
|
44 #include "utilities/macros.hpp" |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6725
diff
changeset
|
45 |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6725
diff
changeset
|
46 #if INCLUDE_NMT |
6197 | 47 #include "services/memRecorder.hpp" |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6725
diff
changeset
|
48 #endif // INCLUDE_NMT |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6725
diff
changeset
|
49 |
10405 | 50 #include "trace/traceBackend.hpp" |
51 #include "trace/traceMacros.hpp" | |
1972 | 52 #include "utilities/exceptions.hpp" |
53 #include "utilities/top.hpp" | |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7179
diff
changeset
|
54 #if INCLUDE_ALL_GCS |
1972 | 55 #include "gc_implementation/g1/dirtyCardQueue.hpp" |
56 #include "gc_implementation/g1/satbQueue.hpp" | |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7179
diff
changeset
|
57 #endif // INCLUDE_ALL_GCS |
1972 | 58 #ifdef ZERO |
59 #ifdef TARGET_ARCH_zero | |
60 # include "stack_zero.hpp" | |
61 #endif | |
62 #endif | |
63 | |
0 | 64 class ThreadSafepointState; |
65 class ThreadProfiler; | |
66 | |
67 class JvmtiThreadState; | |
68 class JvmtiGetLoadedClassesClosure; | |
69 class ThreadStatistics; | |
70 class ConcurrentLocksDump; | |
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
71 class ParkEvent; |
1878 | 72 class Parker; |
0 | 73 |
74 class ciEnv; | |
75 class CompileThread; | |
76 class CompileLog; | |
77 class CompileTask; | |
78 class CompileQueue; | |
79 class CompilerCounters; | |
80 class vframeArray; | |
81 | |
82 class DeoptResourceMark; | |
83 class jvmtiDeferredLocalVariableSet; | |
84 | |
85 class GCTaskQueue; | |
86 class ThreadClosure; | |
87 class IdealGraphPrinter; | |
88 | |
11136
dbc0b5dc08f5
7143807: ResourceMark nesting problem in stringStream
fparain
parents:
10405
diff
changeset
|
89 DEBUG_ONLY(class ResourceMark;) |
dbc0b5dc08f5
7143807: ResourceMark nesting problem in stringStream
fparain
parents:
10405
diff
changeset
|
90 |
1974
fd1d227ef1b9
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
1972
diff
changeset
|
91 class WorkerThread; |
fd1d227ef1b9
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
1972
diff
changeset
|
92 |
0 | 93 // Class hierarchy |
94 // - Thread | |
1119
547f81740344
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
1027
diff
changeset
|
95 // - NamedThread |
547f81740344
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
1027
diff
changeset
|
96 // - VMThread |
547f81740344
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
1027
diff
changeset
|
97 // - ConcurrentGCThread |
547f81740344
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
1027
diff
changeset
|
98 // - WorkerThread |
547f81740344
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
1027
diff
changeset
|
99 // - GangWorker |
547f81740344
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
1027
diff
changeset
|
100 // - GCTaskThread |
0 | 101 // - JavaThread |
102 // - WatcherThread | |
103 | |
104 class Thread: public ThreadShadow { | |
105 friend class VMStructs; | |
106 private: | |
107 // Exception handling | |
108 // (Note: _pending_exception and friends are in ThreadShadow) | |
109 //oop _pending_exception; // pending exception for current thread | |
110 // const char* _exception_file; // file information for exception (debugging only) | |
111 // int _exception_line; // line information for exception (debugging only) | |
6197 | 112 protected: |
0 | 113 // Support for forcing alignment of thread objects for biased locking |
114 void* _real_malloc_address; | |
115 public: | |
12146
9758d9f36299
8021954: VM SIGSEGV during classloading on MacOS; hs_err_pid file produced
coleenp
parents:
11151
diff
changeset
|
116 void* operator new(size_t size) throw() { return allocate(size, true); } |
9758d9f36299
8021954: VM SIGSEGV during classloading on MacOS; hs_err_pid file produced
coleenp
parents:
11151
diff
changeset
|
117 void* operator new(size_t size, const std::nothrow_t& nothrow_constant) throw() { |
9758d9f36299
8021954: VM SIGSEGV during classloading on MacOS; hs_err_pid file produced
coleenp
parents:
11151
diff
changeset
|
118 return allocate(size, false); } |
0 | 119 void operator delete(void* p); |
6197 | 120 |
121 protected: | |
122 static void* allocate(size_t size, bool throw_excpt, MEMFLAGS flags = mtThread); | |
0 | 123 private: |
124 | |
125 // *************************************************************** | |
126 // Suspend and resume support | |
127 // *************************************************************** | |
128 // | |
129 // VM suspend/resume no longer exists - it was once used for various | |
130 // things including safepoints but was deprecated and finally removed | |
131 // in Java 7. Because VM suspension was considered "internal" Java-level | |
132 // suspension was considered "external", and this legacy naming scheme | |
133 // remains. | |
134 // | |
135 // External suspend/resume requests come from JVM_SuspendThread, | |
136 // JVM_ResumeThread, JVMTI SuspendThread, and finally JVMTI | |
137 // ResumeThread. External | |
138 // suspend requests cause _external_suspend to be set and external | |
139 // resume requests cause _external_suspend to be cleared. | |
140 // External suspend requests do not nest on top of other external | |
141 // suspend requests. The higher level APIs reject suspend requests | |
142 // for already suspended threads. | |
143 // | |
144 // The external_suspend | |
145 // flag is checked by has_special_runtime_exit_condition() and java thread | |
146 // will self-suspend when handle_special_runtime_exit_condition() is | |
147 // called. Most uses of the _thread_blocked state in JavaThreads are | |
148 // considered the same as being externally suspended; if the blocking | |
149 // condition lifts, the JavaThread will self-suspend. Other places | |
150 // where VM checks for external_suspend include: | |
151 // + mutex granting (do not enter monitors when thread is suspended) | |
152 // + state transitions from _thread_in_native | |
153 // | |
154 // In general, java_suspend() does not wait for an external suspend | |
155 // request to complete. When it returns, the only guarantee is that | |
156 // the _external_suspend field is true. | |
157 // | |
158 // wait_for_ext_suspend_completion() is used to wait for an external | |
159 // suspend request to complete. External suspend requests are usually | |
160 // followed by some other interface call that requires the thread to | |
161 // be quiescent, e.g., GetCallTrace(). By moving the "wait time" into | |
162 // the interface that requires quiescence, we give the JavaThread a | |
163 // chance to self-suspend before we need it to be quiescent. This | |
164 // improves overall suspend/query performance. | |
165 // | |
166 // _suspend_flags controls the behavior of java_ suspend/resume. | |
167 // It must be set under the protection of SR_lock. Read from the flag is | |
168 // OK without SR_lock as long as the value is only used as a hint. | |
169 // (e.g., check _external_suspend first without lock and then recheck | |
170 // inside SR_lock and finish the suspension) | |
171 // | |
172 // _suspend_flags is also overloaded for other "special conditions" so | |
173 // that a single check indicates whether any special action is needed | |
174 // eg. for async exceptions. | |
175 // ------------------------------------------------------------------- | |
176 // Notes: | |
177 // 1. The suspend/resume logic no longer uses ThreadState in OSThread | |
178 // but we still update its value to keep other part of the system (mainly | |
179 // JVMTI) happy. ThreadState is legacy code (see notes in | |
180 // osThread.hpp). | |
181 // | |
182 // 2. It would be more natural if set_external_suspend() is private and | |
183 // part of java_suspend(), but that probably would affect the suspend/query | |
184 // performance. Need more investigation on this. | |
185 // | |
186 | |
187 // suspend/resume lock: used for self-suspend | |
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
188 Monitor* _SR_lock; |
0 | 189 |
190 protected: | |
191 enum SuspendFlags { | |
192 // NOTE: avoid using the sign-bit as cc generates different test code | |
193 // when the sign-bit is used, and sometimes incorrectly - see CR 6398077 | |
194 | |
195 _external_suspend = 0x20000000U, // thread is asked to self suspend | |
196 _ext_suspended = 0x40000000U, // thread has self-suspended | |
197 _deopt_suspend = 0x10000000U, // thread needs to self suspend for deopt | |
198 | |
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4867
diff
changeset
|
199 _has_async_exception = 0x00000001U, // there is a pending async exception |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4867
diff
changeset
|
200 _critical_native_unlock = 0x00000002U // Must call back to unlock JNI critical lock |
0 | 201 }; |
202 | |
203 // various suspension related flags - atomically updated | |
204 // overloaded for async exception checking in check_special_condition_for_native_trans. | |
205 volatile uint32_t _suspend_flags; | |
206 | |
207 private: | |
208 int _num_nested_signal; | |
209 | |
210 public: | |
211 void enter_signal_handler() { _num_nested_signal++; } | |
212 void leave_signal_handler() { _num_nested_signal--; } | |
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
213 bool is_inside_signal_handler() const { return _num_nested_signal > 0; } |
0 | 214 |
215 private: | |
216 // Debug tracing | |
217 static void trace(const char* msg, const Thread* const thread) PRODUCT_RETURN; | |
218 | |
219 // Active_handles points to a block of handles | |
220 JNIHandleBlock* _active_handles; | |
221 | |
222 // One-element thread local free list | |
223 JNIHandleBlock* _free_handle_block; | |
224 | |
225 // Point to the last handle mark | |
226 HandleMark* _last_handle_mark; | |
227 | |
228 // The parity of the last strong_roots iteration in which this thread was | |
229 // claimed as a task. | |
230 jint _oops_do_parity; | |
231 | |
232 public: | |
233 void set_last_handle_mark(HandleMark* mark) { _last_handle_mark = mark; } | |
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
234 HandleMark* last_handle_mark() const { return _last_handle_mark; } |
0 | 235 private: |
236 | |
237 // debug support for checking if code does allow safepoints or not | |
238 // GC points in the VM can happen because of allocation, invoking a VM operation, or blocking on | |
239 // mutex, or blocking on an object synchronizer (Java locking). | |
240 // If !allow_safepoint(), then an assertion failure will happen in any of the above cases | |
241 // If !allow_allocation(), then an assertion failure will happen during allocation | |
242 // (Hence, !allow_safepoint() => !allow_allocation()). | |
243 // | |
244 // The two classes No_Safepoint_Verifier and No_Allocation_Verifier are used to set these counters. | |
245 // | |
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
246 NOT_PRODUCT(int _allow_safepoint_count;) // If 0, thread allow a safepoint to happen |
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
247 debug_only (int _allow_allocation_count;) // If 0, the thread is allowed to allocate oops. |
0 | 248 |
806
821269eca479
6820167: GCALotAtAllSafepoints + FullGCALot(ScavengeALot) options crash JVM
ysr
parents:
702
diff
changeset
|
249 // Used by SkipGCALot class. |
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
250 NOT_PRODUCT(bool _skip_gcalot;) // Should we elide gc-a-lot? |
806
821269eca479
6820167: GCALotAtAllSafepoints + FullGCALot(ScavengeALot) options crash JVM
ysr
parents:
702
diff
changeset
|
251 |
0 | 252 // Record when GC is locked out via the GC_locker mechanism |
253 CHECK_UNHANDLED_OOPS_ONLY(int _gc_locked_out_count;) | |
254 | |
255 friend class No_Alloc_Verifier; | |
256 friend class No_Safepoint_Verifier; | |
257 friend class Pause_No_Safepoint_Verifier; | |
258 friend class ThreadLocalStorage; | |
259 friend class GC_locker; | |
260 | |
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
261 ThreadLocalAllocBuffer _tlab; // Thread-local eden |
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
262 jlong _allocated_bytes; // Cumulative number of bytes allocated on |
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
263 // the Java heap |
0 | 264 |
10405 | 265 TRACE_DATA _trace_data; // Thread-local data for tracing |
4800
94ec88ca68e2
7115199: Add event tracing hooks and Java Flight Recorder infrastructure
phh
parents:
4006
diff
changeset
|
266 |
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
267 int _vm_operation_started_count; // VM_Operation support |
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
268 int _vm_operation_completed_count; // VM_Operation support |
0 | 269 |
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
270 ObjectMonitor* _current_pending_monitor; // ObjectMonitor this thread |
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
271 // is waiting to lock |
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
272 bool _current_pending_monitor_is_from_java; // locking is from Java code |
0 | 273 |
274 // ObjectMonitor on which this thread called Object.wait() | |
275 ObjectMonitor* _current_waiting_monitor; | |
276 | |
277 // Private thread-local objectmonitor list - a simple cache organized as a SLL. | |
278 public: | |
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
279 ObjectMonitor* omFreeList; |
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
280 int omFreeCount; // length of omFreeList |
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
281 int omFreeProvision; // reload chunk size |
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
282 ObjectMonitor* omInUseList; // SLL to track monitors in circulation |
1587 | 283 int omInUseCount; // length of omInUseList |
0 | 284 |
5928
541c4a5e7b88
7150390: JFR test crashed on assert(_jni_lock_count == count) failed: must be equal
never
parents:
4873
diff
changeset
|
285 #ifdef ASSERT |
541c4a5e7b88
7150390: JFR test crashed on assert(_jni_lock_count == count) failed: must be equal
never
parents:
4873
diff
changeset
|
286 private: |
541c4a5e7b88
7150390: JFR test crashed on assert(_jni_lock_count == count) failed: must be equal
never
parents:
4873
diff
changeset
|
287 bool _visited_for_critical_count; |
541c4a5e7b88
7150390: JFR test crashed on assert(_jni_lock_count == count) failed: must be equal
never
parents:
4873
diff
changeset
|
288 |
541c4a5e7b88
7150390: JFR test crashed on assert(_jni_lock_count == count) failed: must be equal
never
parents:
4873
diff
changeset
|
289 public: |
541c4a5e7b88
7150390: JFR test crashed on assert(_jni_lock_count == count) failed: must be equal
never
parents:
4873
diff
changeset
|
290 void set_visited_for_critical_count(bool z) { _visited_for_critical_count = z; } |
541c4a5e7b88
7150390: JFR test crashed on assert(_jni_lock_count == count) failed: must be equal
never
parents:
4873
diff
changeset
|
291 bool was_visited_for_critical_count() const { return _visited_for_critical_count; } |
541c4a5e7b88
7150390: JFR test crashed on assert(_jni_lock_count == count) failed: must be equal
never
parents:
4873
diff
changeset
|
292 #endif |
541c4a5e7b88
7150390: JFR test crashed on assert(_jni_lock_count == count) failed: must be equal
never
parents:
4873
diff
changeset
|
293 |
0 | 294 public: |
295 enum { | |
296 is_definitely_current_thread = true | |
297 }; | |
298 | |
299 // Constructor | |
300 Thread(); | |
301 virtual ~Thread(); | |
302 | |
303 // initializtion | |
304 void initialize_thread_local_storage(); | |
305 | |
306 // thread entry point | |
307 virtual void run(); | |
308 | |
309 // Testers | |
310 virtual bool is_VM_thread() const { return false; } | |
311 virtual bool is_Java_thread() const { return false; } | |
312 virtual bool is_Compiler_thread() const { return false; } | |
313 virtual bool is_hidden_from_external_view() const { return false; } | |
314 virtual bool is_jvmti_agent_thread() const { return false; } | |
315 // True iff the thread can perform GC operations at a safepoint. | |
316 // Generally will be true only of VM thread and parallel GC WorkGang | |
317 // threads. | |
318 virtual bool is_GC_task_thread() const { return false; } | |
319 virtual bool is_Watcher_thread() const { return false; } | |
320 virtual bool is_ConcurrentGC_thread() const { return false; } | |
1119
547f81740344
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
1027
diff
changeset
|
321 virtual bool is_Named_thread() const { return false; } |
1974
fd1d227ef1b9
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
1972
diff
changeset
|
322 virtual bool is_Worker_thread() const { return false; } |
fd1d227ef1b9
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
1972
diff
changeset
|
323 |
15463
a20be10ad437
made Graal work with the HotSpot compiler queue and compiler threads, enabled by -XX:-UseGraalCompilationQueue
Doug Simon <doug.simon@oracle.com>
parents:
14909
diff
changeset
|
324 // Can this thread make Java upcalls |
a20be10ad437
made Graal work with the HotSpot compiler queue and compiler threads, enabled by -XX:-UseGraalCompilationQueue
Doug Simon <doug.simon@oracle.com>
parents:
14909
diff
changeset
|
325 virtual bool can_call_java() const { return true; } |
a20be10ad437
made Graal work with the HotSpot compiler queue and compiler threads, enabled by -XX:-UseGraalCompilationQueue
Doug Simon <doug.simon@oracle.com>
parents:
14909
diff
changeset
|
326 |
1974
fd1d227ef1b9
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
1972
diff
changeset
|
327 // Casts |
fd1d227ef1b9
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
1972
diff
changeset
|
328 virtual WorkerThread* as_Worker_thread() const { return NULL; } |
0 | 329 |
330 virtual char* name() const { return (char*)"Unknown thread"; } | |
331 | |
332 // Returns the current thread | |
333 static inline Thread* current(); | |
334 | |
335 // Common thread operations | |
336 static void set_priority(Thread* thread, ThreadPriority priority); | |
337 static ThreadPriority get_priority(const Thread* const thread); | |
338 static void start(Thread* thread); | |
339 static void interrupt(Thread* thr); | |
340 static bool is_interrupted(Thread* thr, bool clear_interrupted); | |
341 | |
4006 | 342 void set_native_thread_name(const char *name) { |
343 assert(Thread::current() == this, "set_native_thread_name can only be called on the current thread"); | |
344 os::set_native_thread_name(name); | |
345 } | |
346 | |
1640
bfc89697cccb
6964164: MonitorInUseLists leak of contended objects
acorn
parents:
1590
diff
changeset
|
347 ObjectMonitor** omInUseList_addr() { return (ObjectMonitor **)&omInUseList; } |
0 | 348 Monitor* SR_lock() const { return _SR_lock; } |
349 | |
350 bool has_async_exception() const { return (_suspend_flags & _has_async_exception) != 0; } | |
351 | |
352 void set_suspend_flag(SuspendFlags f) { | |
353 assert(sizeof(jint) == sizeof(_suspend_flags), "size mismatch"); | |
354 uint32_t flags; | |
355 do { | |
356 flags = _suspend_flags; | |
357 } | |
358 while (Atomic::cmpxchg((jint)(flags | f), | |
359 (volatile jint*)&_suspend_flags, | |
360 (jint)flags) != (jint)flags); | |
361 } | |
362 void clear_suspend_flag(SuspendFlags f) { | |
363 assert(sizeof(jint) == sizeof(_suspend_flags), "size mismatch"); | |
364 uint32_t flags; | |
365 do { | |
366 flags = _suspend_flags; | |
367 } | |
368 while (Atomic::cmpxchg((jint)(flags & ~f), | |
369 (volatile jint*)&_suspend_flags, | |
370 (jint)flags) != (jint)flags); | |
371 } | |
372 | |
373 void set_has_async_exception() { | |
374 set_suspend_flag(_has_async_exception); | |
375 } | |
376 void clear_has_async_exception() { | |
377 clear_suspend_flag(_has_async_exception); | |
378 } | |
379 | |
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4867
diff
changeset
|
380 bool do_critical_native_unlock() const { return (_suspend_flags & _critical_native_unlock) != 0; } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4867
diff
changeset
|
381 |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4867
diff
changeset
|
382 void set_critical_native_unlock() { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4867
diff
changeset
|
383 set_suspend_flag(_critical_native_unlock); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4867
diff
changeset
|
384 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4867
diff
changeset
|
385 void clear_critical_native_unlock() { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4867
diff
changeset
|
386 clear_suspend_flag(_critical_native_unlock); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4867
diff
changeset
|
387 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4867
diff
changeset
|
388 |
0 | 389 // Support for Unhandled Oop detection |
390 #ifdef CHECK_UNHANDLED_OOPS | |
391 private: | |
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
392 UnhandledOops* _unhandled_oops; |
0 | 393 public: |
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
394 UnhandledOops* unhandled_oops() { return _unhandled_oops; } |
0 | 395 // Mark oop safe for gc. It may be stack allocated but won't move. |
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
396 void allow_unhandled_oop(oop *op) { |
0 | 397 if (CheckUnhandledOops) unhandled_oops()->allow_unhandled_oop(op); |
398 } | |
399 // Clear oops at safepoint so crashes point to unhandled oop violator | |
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
400 void clear_unhandled_oops() { |
0 | 401 if (CheckUnhandledOops) unhandled_oops()->clear_unhandled_oops(); |
402 } | |
403 bool is_gc_locked_out() { return _gc_locked_out_count > 0; } | |
404 #endif // CHECK_UNHANDLED_OOPS | |
405 | |
806
821269eca479
6820167: GCALotAtAllSafepoints + FullGCALot(ScavengeALot) options crash JVM
ysr
parents:
702
diff
changeset
|
406 #ifndef PRODUCT |
821269eca479
6820167: GCALotAtAllSafepoints + FullGCALot(ScavengeALot) options crash JVM
ysr
parents:
702
diff
changeset
|
407 bool skip_gcalot() { return _skip_gcalot; } |
821269eca479
6820167: GCALotAtAllSafepoints + FullGCALot(ScavengeALot) options crash JVM
ysr
parents:
702
diff
changeset
|
408 void set_skip_gcalot(bool v) { _skip_gcalot = v; } |
821269eca479
6820167: GCALotAtAllSafepoints + FullGCALot(ScavengeALot) options crash JVM
ysr
parents:
702
diff
changeset
|
409 #endif |
821269eca479
6820167: GCALotAtAllSafepoints + FullGCALot(ScavengeALot) options crash JVM
ysr
parents:
702
diff
changeset
|
410 |
0 | 411 public: |
412 // Installs a pending exception to be inserted later | |
413 static void send_async_exception(oop thread_oop, oop java_throwable); | |
414 | |
415 // Resource area | |
416 ResourceArea* resource_area() const { return _resource_area; } | |
417 void set_resource_area(ResourceArea* area) { _resource_area = area; } | |
418 | |
419 OSThread* osthread() const { return _osthread; } | |
420 void set_osthread(OSThread* thread) { _osthread = thread; } | |
421 | |
422 // JNI handle support | |
423 JNIHandleBlock* active_handles() const { return _active_handles; } | |
424 void set_active_handles(JNIHandleBlock* block) { _active_handles = block; } | |
425 JNIHandleBlock* free_handle_block() const { return _free_handle_block; } | |
426 void set_free_handle_block(JNIHandleBlock* block) { _free_handle_block = block; } | |
427 | |
428 // Internal handle support | |
429 HandleArea* handle_area() const { return _handle_area; } | |
430 void set_handle_area(HandleArea* area) { _handle_area = area; } | |
431 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
432 GrowableArray<Metadata*>* metadata_handles() const { return _metadata_handles; } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
433 void set_metadata_handles(GrowableArray<Metadata*>* handles){ _metadata_handles = handles; } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
434 |
0 | 435 // Thread-Local Allocation Buffer (TLAB) support |
436 ThreadLocalAllocBuffer& tlab() { return _tlab; } | |
437 void initialize_tlab() { | |
438 if (UseTLAB) { | |
439 tlab().initialize(); | |
440 } | |
441 } | |
442 | |
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
443 jlong allocated_bytes() { return _allocated_bytes; } |
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
444 void set_allocated_bytes(jlong value) { _allocated_bytes = value; } |
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
445 void incr_allocated_bytes(jlong size) { _allocated_bytes += size; } |
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
446 jlong cooked_allocated_bytes() { |
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
447 jlong allocated_bytes = OrderAccess::load_acquire(&_allocated_bytes); |
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
448 if (UseTLAB) { |
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
449 size_t used_bytes = tlab().used_bytes(); |
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
450 if ((ssize_t)used_bytes > 0) { |
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
451 // More-or-less valid tlab. The load_acquire above should ensure |
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
452 // that the result of the add is <= the instantaneous value |
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
453 return allocated_bytes + used_bytes; |
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
454 } |
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
455 } |
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
456 return allocated_bytes; |
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
457 } |
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
458 |
10405 | 459 TRACE_DATA* trace_data() { return &_trace_data; } |
4800
94ec88ca68e2
7115199: Add event tracing hooks and Java Flight Recorder infrastructure
phh
parents:
4006
diff
changeset
|
460 |
0 | 461 // VM operation support |
462 int vm_operation_ticket() { return ++_vm_operation_started_count; } | |
463 int vm_operation_completed_count() { return _vm_operation_completed_count; } | |
464 void increment_vm_operation_completed_count() { _vm_operation_completed_count++; } | |
465 | |
466 // For tracking the heavyweight monitor the thread is pending on. | |
467 ObjectMonitor* current_pending_monitor() { | |
468 return _current_pending_monitor; | |
469 } | |
470 void set_current_pending_monitor(ObjectMonitor* monitor) { | |
471 _current_pending_monitor = monitor; | |
472 } | |
473 void set_current_pending_monitor_is_from_java(bool from_java) { | |
474 _current_pending_monitor_is_from_java = from_java; | |
475 } | |
476 bool current_pending_monitor_is_from_java() { | |
477 return _current_pending_monitor_is_from_java; | |
478 } | |
479 | |
480 // For tracking the ObjectMonitor on which this thread called Object.wait() | |
481 ObjectMonitor* current_waiting_monitor() { | |
482 return _current_waiting_monitor; | |
483 } | |
484 void set_current_waiting_monitor(ObjectMonitor* monitor) { | |
485 _current_waiting_monitor = monitor; | |
486 } | |
487 | |
488 // GC support | |
489 // Apply "f->do_oop" to all root oops in "this". | |
7179
d0aa87f04bd5
8003720: NPG: Method in interpreter stack frame can be deallocated
stefank
parents:
6939
diff
changeset
|
490 // Apply "cld_f->do_cld" to CLDs that are otherwise not kept alive. |
d0aa87f04bd5
8003720: NPG: Method in interpreter stack frame can be deallocated
stefank
parents:
6939
diff
changeset
|
491 // Used by JavaThread::oops_do. |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
844
diff
changeset
|
492 // Apply "cf->do_code_blob" (if !NULL) to all code blobs active in frames |
14909 | 493 virtual void oops_do(OopClosure* f, CLDToOopClosure* cld_f, CodeBlobClosure* cf); |
0 | 494 |
495 // Handles the parallel case for the method below. | |
496 private: | |
497 bool claim_oops_do_par_case(int collection_parity); | |
498 public: | |
499 // Requires that "collection_parity" is that of the current strong roots | |
500 // iteration. If "is_par" is false, sets the parity of "this" to | |
501 // "collection_parity", and returns "true". If "is_par" is true, | |
502 // uses an atomic instruction to set the current threads parity to | |
503 // "collection_parity", if it is not already. Returns "true" iff the | |
504 // calling thread does the update, this indicates that the calling thread | |
505 // has claimed the thread's stack as a root groop in the current | |
506 // collection. | |
507 bool claim_oops_do(bool is_par, int collection_parity) { | |
508 if (!is_par) { | |
509 _oops_do_parity = collection_parity; | |
510 return true; | |
511 } else { | |
512 return claim_oops_do_par_case(collection_parity); | |
513 } | |
514 } | |
515 | |
516 // Sweeper support | |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
844
diff
changeset
|
517 void nmethods_do(CodeBlobClosure* cf); |
0 | 518 |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
519 // jvmtiRedefineClasses support |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
520 void metadata_do(void f(Metadata*)); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
521 |
702
b9fba36710f2
6699669: Hotspot server leaves synchronized block with monitor in bad state
xlu
parents:
609
diff
changeset
|
522 // Used by fast lock support |
0 | 523 virtual bool is_lock_owned(address adr) const; |
524 | |
525 // Check if address is in the stack of the thread (not just for locks). | |
702
b9fba36710f2
6699669: Hotspot server leaves synchronized block with monitor in bad state
xlu
parents:
609
diff
changeset
|
526 // Warning: the method can only be used on the running thread |
0 | 527 bool is_in_stack(address adr) const; |
11146
e619a2766bcc
8016131: nsk/sysdict/vm/stress/chain tests crash the VM in 'entry_frame_is_first()'
rbackman
parents:
11136
diff
changeset
|
528 // Check if address is in the usable part of the stack (excludes protected |
e619a2766bcc
8016131: nsk/sysdict/vm/stress/chain tests crash the VM in 'entry_frame_is_first()'
rbackman
parents:
11136
diff
changeset
|
529 // guard pages) |
e619a2766bcc
8016131: nsk/sysdict/vm/stress/chain tests crash the VM in 'entry_frame_is_first()'
rbackman
parents:
11136
diff
changeset
|
530 bool is_in_usable_stack(address adr) const; |
0 | 531 |
532 // Sets this thread as starting thread. Returns failure if thread | |
533 // creation fails due to lack of memory, too many threads etc. | |
534 bool set_as_starting_thread(); | |
535 | |
536 protected: | |
537 // OS data associated with the thread | |
538 OSThread* _osthread; // Platform-specific thread information | |
539 | |
540 // Thread local resource area for temporary allocation within the VM | |
541 ResourceArea* _resource_area; | |
542 | |
11136
dbc0b5dc08f5
7143807: ResourceMark nesting problem in stringStream
fparain
parents:
10405
diff
changeset
|
543 DEBUG_ONLY(ResourceMark* _current_resource_mark;) |
dbc0b5dc08f5
7143807: ResourceMark nesting problem in stringStream
fparain
parents:
10405
diff
changeset
|
544 |
0 | 545 // Thread local handle area for allocation of handles within the VM |
546 HandleArea* _handle_area; | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
547 GrowableArray<Metadata*>* _metadata_handles; |
0 | 548 |
549 // Support for stack overflow handling, get_thread, etc. | |
550 address _stack_base; | |
551 size_t _stack_size; | |
552 uintptr_t _self_raw_id; // used by get_thread (mutable) | |
553 int _lgrp_id; | |
554 | |
555 public: | |
556 // Stack overflow support | |
557 address stack_base() const { assert(_stack_base != NULL,"Sanity check"); return _stack_base; } | |
558 | |
559 void set_stack_base(address base) { _stack_base = base; } | |
560 size_t stack_size() const { return _stack_size; } | |
561 void set_stack_size(size_t size) { _stack_size = size; } | |
562 void record_stack_base_and_size(); | |
563 | |
1688
2dfd013a7465
6975078: assert(allocated_on_res_area() || allocated_on_C_heap() || allocated_on_arena()
kvn
parents:
1640
diff
changeset
|
564 bool on_local_stack(address adr) const { |
2dfd013a7465
6975078: assert(allocated_on_res_area() || allocated_on_C_heap() || allocated_on_arena()
kvn
parents:
1640
diff
changeset
|
565 /* QQQ this has knowledge of direction, ought to be a stack method */ |
2dfd013a7465
6975078: assert(allocated_on_res_area() || allocated_on_C_heap() || allocated_on_arena()
kvn
parents:
1640
diff
changeset
|
566 return (_stack_base >= adr && adr >= (_stack_base - _stack_size)); |
2dfd013a7465
6975078: assert(allocated_on_res_area() || allocated_on_C_heap() || allocated_on_arena()
kvn
parents:
1640
diff
changeset
|
567 } |
2dfd013a7465
6975078: assert(allocated_on_res_area() || allocated_on_C_heap() || allocated_on_arena()
kvn
parents:
1640
diff
changeset
|
568 |
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
569 uintptr_t self_raw_id() { return _self_raw_id; } |
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
570 void set_self_raw_id(uintptr_t value) { _self_raw_id = value; } |
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
571 |
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
572 int lgrp_id() const { return _lgrp_id; } |
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
573 void set_lgrp_id(int value) { _lgrp_id = value; } |
0 | 574 |
575 // Printing | |
576 void print_on(outputStream* st) const; | |
577 void print() const { print_on(tty); } | |
578 virtual void print_on_error(outputStream* st, char* buf, int buflen) const; | |
579 | |
580 // Debug-only code | |
581 #ifdef ASSERT | |
582 private: | |
583 // Deadlock detection support for Mutex locks. List of locks own by thread. | |
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
584 Monitor* _owned_locks; |
0 | 585 // Mutex::set_owner_implementation is the only place where _owned_locks is modified, |
586 // thus the friendship | |
587 friend class Mutex; | |
588 friend class Monitor; | |
589 | |
590 public: | |
591 void print_owned_locks_on(outputStream* st) const; | |
592 void print_owned_locks() const { print_owned_locks_on(tty); } | |
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
593 Monitor* owned_locks() const { return _owned_locks; } |
0 | 594 bool owns_locks() const { return owned_locks() != NULL; } |
595 bool owns_locks_but_compiled_lock() const; | |
596 | |
597 // Deadlock detection | |
598 bool allow_allocation() { return _allow_allocation_count == 0; } | |
11136
dbc0b5dc08f5
7143807: ResourceMark nesting problem in stringStream
fparain
parents:
10405
diff
changeset
|
599 ResourceMark* current_resource_mark() { return _current_resource_mark; } |
dbc0b5dc08f5
7143807: ResourceMark nesting problem in stringStream
fparain
parents:
10405
diff
changeset
|
600 void set_current_resource_mark(ResourceMark* rm) { _current_resource_mark = rm; } |
0 | 601 #endif |
602 | |
603 void check_for_valid_safepoint_state(bool potential_vm_operation) PRODUCT_RETURN; | |
604 | |
605 private: | |
606 volatile int _jvmti_env_iteration_count; | |
607 | |
608 public: | |
609 void entering_jvmti_env_iteration() { ++_jvmti_env_iteration_count; } | |
610 void leaving_jvmti_env_iteration() { --_jvmti_env_iteration_count; } | |
611 bool is_inside_jvmti_env_iteration() { return _jvmti_env_iteration_count > 0; } | |
612 | |
613 // Code generation | |
614 static ByteSize exception_file_offset() { return byte_offset_of(Thread, _exception_file ); } | |
615 static ByteSize exception_line_offset() { return byte_offset_of(Thread, _exception_line ); } | |
616 static ByteSize active_handles_offset() { return byte_offset_of(Thread, _active_handles ); } | |
617 | |
618 static ByteSize stack_base_offset() { return byte_offset_of(Thread, _stack_base ); } | |
619 static ByteSize stack_size_offset() { return byte_offset_of(Thread, _stack_size ); } | |
620 | |
621 #define TLAB_FIELD_OFFSET(name) \ | |
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
622 static ByteSize tlab_##name##_offset() { return byte_offset_of(Thread, _tlab) + ThreadLocalAllocBuffer::name##_offset(); } |
0 | 623 |
624 TLAB_FIELD_OFFSET(start) | |
625 TLAB_FIELD_OFFSET(end) | |
626 TLAB_FIELD_OFFSET(top) | |
627 TLAB_FIELD_OFFSET(pf_top) | |
628 TLAB_FIELD_OFFSET(size) // desired_size | |
629 TLAB_FIELD_OFFSET(refill_waste_limit) | |
630 TLAB_FIELD_OFFSET(number_of_refills) | |
631 TLAB_FIELD_OFFSET(fast_refill_waste) | |
632 TLAB_FIELD_OFFSET(slow_allocations) | |
633 | |
634 #undef TLAB_FIELD_OFFSET | |
635 | |
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
636 static ByteSize allocated_bytes_offset() { return byte_offset_of(Thread, _allocated_bytes ); } |
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1974
diff
changeset
|
637 |
0 | 638 public: |
639 volatile intptr_t _Stalled ; | |
640 volatile int _TypeTag ; | |
641 ParkEvent * _ParkEvent ; // for synchronized() | |
642 ParkEvent * _SleepEvent ; // for Thread.sleep | |
643 ParkEvent * _MutexEvent ; // for native internal Mutex/Monitor | |
644 ParkEvent * _MuxEvent ; // for low-level muxAcquire-muxRelease | |
645 int NativeSyncRecursion ; // diagnostic | |
646 | |
647 volatile int _OnTrap ; // Resume-at IP delta | |
648 jint _hashStateW ; // Marsaglia Shift-XOR thread-local RNG | |
649 jint _hashStateX ; // thread-specific hashCode generator state | |
650 jint _hashStateY ; | |
651 jint _hashStateZ ; | |
652 void * _schedctl ; | |
653 | |
654 | |
655 volatile jint rng [4] ; // RNG for spin loop | |
656 | |
657 // Low-level leaf-lock primitives used to implement synchronization | |
658 // and native monitor-mutex infrastructure. | |
659 // Not for general synchronization use. | |
660 static void SpinAcquire (volatile int * Lock, const char * Name) ; | |
661 static void SpinRelease (volatile int * Lock) ; | |
662 static void muxAcquire (volatile intptr_t * Lock, const char * Name) ; | |
663 static void muxAcquireW (volatile intptr_t * Lock, ParkEvent * ev) ; | |
664 static void muxRelease (volatile intptr_t * Lock) ; | |
665 }; | |
666 | |
667 // Inline implementation of Thread::current() | |
668 // Thread::current is "hot" it's called > 128K times in the 1st 500 msecs of | |
669 // startup. | |
670 // ThreadLocalStorage::thread is warm -- it's called > 16K times in the same | |
671 // period. This is inlined in thread_<os_family>.inline.hpp. | |
672 | |
673 inline Thread* Thread::current() { | |
674 #ifdef ASSERT | |
675 // This function is very high traffic. Define PARANOID to enable expensive | |
676 // asserts. | |
677 #ifdef PARANOID | |
678 // Signal handler should call ThreadLocalStorage::get_thread_slow() | |
679 Thread* t = ThreadLocalStorage::get_thread_slow(); | |
680 assert(t != NULL && !t->is_inside_signal_handler(), | |
681 "Don't use Thread::current() inside signal handler"); | |
682 #endif | |
683 #endif | |
684 Thread* thread = ThreadLocalStorage::thread(); | |
685 assert(thread != NULL, "just checking"); | |
686 return thread; | |
687 } | |
688 | |
689 // Name support for threads. non-JavaThread subclasses with multiple | |
690 // uniquely named instances should derive from this. | |
691 class NamedThread: public Thread { | |
692 friend class VMStructs; | |
693 enum { | |
694 max_name_len = 64 | |
695 }; | |
696 private: | |
697 char* _name; | |
1119
547f81740344
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
1027
diff
changeset
|
698 // log JavaThread being processed by oops_do |
547f81740344
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
1027
diff
changeset
|
699 JavaThread* _processed_thread; |
547f81740344
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
1027
diff
changeset
|
700 |
0 | 701 public: |
702 NamedThread(); | |
703 ~NamedThread(); | |
704 // May only be called once per thread. | |
705 void set_name(const char* format, ...); | |
1119
547f81740344
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
1027
diff
changeset
|
706 virtual bool is_Named_thread() const { return true; } |
0 | 707 virtual char* name() const { return _name == NULL ? (char*)"Unknown Thread" : _name; } |
1119
547f81740344
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
1027
diff
changeset
|
708 JavaThread *processed_thread() { return _processed_thread; } |
547f81740344
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
1027
diff
changeset
|
709 void set_processed_thread(JavaThread *thread) { _processed_thread = thread; } |
0 | 710 }; |
711 | |
712 // Worker threads are named and have an id of an assigned work. | |
713 class WorkerThread: public NamedThread { | |
714 private: | |
715 uint _id; | |
716 public: | |
1974
fd1d227ef1b9
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
1972
diff
changeset
|
717 WorkerThread() : _id(0) { } |
fd1d227ef1b9
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
1972
diff
changeset
|
718 virtual bool is_Worker_thread() const { return true; } |
fd1d227ef1b9
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
1972
diff
changeset
|
719 |
fd1d227ef1b9
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
1972
diff
changeset
|
720 virtual WorkerThread* as_Worker_thread() const { |
fd1d227ef1b9
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
1972
diff
changeset
|
721 assert(is_Worker_thread(), "Dubious cast to WorkerThread*?"); |
fd1d227ef1b9
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
1972
diff
changeset
|
722 return (WorkerThread*) this; |
fd1d227ef1b9
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
1972
diff
changeset
|
723 } |
fd1d227ef1b9
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
1972
diff
changeset
|
724 |
fd1d227ef1b9
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
1972
diff
changeset
|
725 void set_id(uint work_id) { _id = work_id; } |
fd1d227ef1b9
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
1972
diff
changeset
|
726 uint id() const { return _id; } |
0 | 727 }; |
728 | |
729 // A single WatcherThread is used for simulating timer interrupts. | |
730 class WatcherThread: public Thread { | |
731 friend class VMStructs; | |
732 public: | |
733 virtual void run(); | |
734 | |
735 private: | |
736 static WatcherThread* _watcher_thread; | |
737 | |
6939
c284cf4781f0
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
6872
diff
changeset
|
738 static bool _startable; |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1640
diff
changeset
|
739 volatile static bool _should_terminate; // updated without holding lock |
11151 | 740 |
741 os::WatcherThreadCrashProtection* _crash_protection; | |
0 | 742 public: |
743 enum SomeConstants { | |
744 delay_interval = 10 // interrupt delay in milliseconds | |
745 }; | |
746 | |
747 // Constructor | |
748 WatcherThread(); | |
749 | |
750 // Tester | |
751 bool is_Watcher_thread() const { return true; } | |
752 | |
753 // Printing | |
754 char* name() const { return (char*)"VM Periodic Task Thread"; } | |
755 void print_on(outputStream* st) const; | |
756 void print() const { print_on(tty); } | |
6939
c284cf4781f0
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
6872
diff
changeset
|
757 void unpark(); |
0 | 758 |
759 // Returns the single instance of WatcherThread | |
760 static WatcherThread* watcher_thread() { return _watcher_thread; } | |
761 | |
762 // Create and start the single instance of WatcherThread, or stop it on shutdown | |
763 static void start(); | |
764 static void stop(); | |
6939
c284cf4781f0
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
6872
diff
changeset
|
765 // Only allow start once the VM is sufficiently initialized |
c284cf4781f0
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
6872
diff
changeset
|
766 // Otherwise the first task to enroll will trigger the start |
c284cf4781f0
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
6872
diff
changeset
|
767 static void make_startable(); |
c284cf4781f0
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
6872
diff
changeset
|
768 |
11151 | 769 void set_crash_protection(os::WatcherThreadCrashProtection* crash_protection) { |
770 assert(Thread::current()->is_Watcher_thread(), "Can only be set by WatcherThread"); | |
771 _crash_protection = crash_protection; | |
772 } | |
773 | |
774 bool has_crash_protection() const { return _crash_protection != NULL; } | |
775 os::WatcherThreadCrashProtection* crash_protection() const { return _crash_protection; } | |
776 | |
6939
c284cf4781f0
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
6872
diff
changeset
|
777 private: |
c284cf4781f0
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
6872
diff
changeset
|
778 int sleep() const; |
0 | 779 }; |
780 | |
781 | |
782 class CompilerThread; | |
783 | |
784 typedef void (*ThreadFunction)(JavaThread*, TRAPS); | |
785 | |
786 class JavaThread: public Thread { | |
787 friend class VMStructs; | |
788 private: | |
789 JavaThread* _next; // The next thread in the Threads list | |
790 oop _threadObj; // The Java level thread object | |
791 | |
8151
b8f261ba79c6
Minimize diff to plain HotSpot version.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
8124
diff
changeset
|
792 // (thomaswue) Necessary for holding a compilation buffer. |
6948
e522a00b91aa
Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/ after NPG - C++ build works
Doug Simon <doug.simon@oracle.com>
diff
changeset
|
793 // Moved up from CompilerThread to JavaThread in order to enable code |
e522a00b91aa
Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/ after NPG - C++ build works
Doug Simon <doug.simon@oracle.com>
diff
changeset
|
794 // installation from Java application code. |
3555
22d11b3bc561
Various hacks to be able to install machine code from a Java thread.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
3543
diff
changeset
|
795 BufferBlob* _buffer_blob; |
0 | 796 #ifdef ASSERT |
797 private: | |
798 int _java_call_counter; | |
799 | |
800 public: | |
801 int java_call_counter() { return _java_call_counter; } | |
802 void inc_java_call_counter() { _java_call_counter++; } | |
803 void dec_java_call_counter() { | |
804 assert(_java_call_counter > 0, "Invalid nesting of JavaCallWrapper"); | |
805 _java_call_counter--; | |
806 } | |
807 private: // restore original namespace restriction | |
808 #endif // ifdef ASSERT | |
809 | |
810 #ifndef PRODUCT | |
811 public: | |
812 enum { | |
813 jump_ring_buffer_size = 16 | |
814 }; | |
815 private: // restore original namespace restriction | |
816 #endif | |
817 | |
818 JavaFrameAnchor _anchor; // Encapsulation of current java frame and it state | |
819 | |
820 ThreadFunction _entry_point; | |
821 | |
822 JNIEnv _jni_environment; | |
823 | |
824 // Deopt support | |
825 DeoptResourceMark* _deopt_mark; // Holds special ResourceMark for deoptimization | |
826 | |
827 intptr_t* _must_deopt_id; // id of frame that needs to be deopted once we | |
828 // transition out of native | |
1814
fd5d4527cdf5
6986270: guarantee(*bcp != Bytecodes::_monitorenter || exec_mode != Deoptimization::Unpack_exception) fails
iveresov
parents:
1689
diff
changeset
|
829 nmethod* _deopt_nmethod; // nmethod that is currently being deoptimized |
0 | 830 vframeArray* _vframe_array_head; // Holds the heap of the active vframeArrays |
831 vframeArray* _vframe_array_last; // Holds last vFrameArray we popped | |
832 // Because deoptimization is lazy we must save jvmti requests to set locals | |
833 // in compiled frames until we deoptimize and we have an interpreter frame. | |
834 // This holds the pointer to array (yeah like there might be more than one) of | |
835 // description of compiled vframes that have locals that need to be updated. | |
836 GrowableArray<jvmtiDeferredLocalVariableSet*>* _deferred_locals_updates; | |
837 | |
838 // Handshake value for fixing 6243940. We need a place for the i2c | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
839 // adapter to store the callee Method*. This value is NEVER live |
0 | 840 // across a gc point so it does NOT have to be gc'd |
841 // The handshake is open ended since we can't be certain that it will | |
842 // be NULLed. This is because we rarely ever see the race and end up | |
843 // in handle_wrong_method which is the backend of the handshake. See | |
844 // code in i2c adapters and handle_wrong_method. | |
845 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
846 Method* _callee_target; |
0 | 847 |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
848 // Used to pass back results to the interpreter or generated code running Java code. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
849 oop _vm_result; // oop result is GC-preserved |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
850 Metadata* _vm_result_2; // non-oop result |
1027
39b01ab7035a
6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning
ysr
parents:
997
diff
changeset
|
851 |
39b01ab7035a
6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning
ysr
parents:
997
diff
changeset
|
852 // See ReduceInitialCardMarks: this holds the precise space interval of |
39b01ab7035a
6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning
ysr
parents:
997
diff
changeset
|
853 // the most recent slow path allocation for which compiled code has |
39b01ab7035a
6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning
ysr
parents:
997
diff
changeset
|
854 // elided card-marks for performance along the fast-path. |
39b01ab7035a
6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning
ysr
parents:
997
diff
changeset
|
855 MemRegion _deferred_card_mark; |
0 | 856 |
857 MonitorChunk* _monitor_chunks; // Contains the off stack monitors | |
858 // allocated during deoptimization | |
859 // and by JNI_MonitorEnter/Exit | |
860 | |
861 // Async. requests support | |
862 enum AsyncRequests { | |
863 _no_async_condition = 0, | |
864 _async_exception, | |
865 _async_unsafe_access_error | |
866 }; | |
867 AsyncRequests _special_runtime_exit_condition; // Enum indicating pending async. request | |
868 oop _pending_async_exception; | |
869 | |
870 // Safepoint support | |
871 public: // Expose _thread_state for SafeFetchInt() | |
872 volatile JavaThreadState _thread_state; | |
873 private: | |
874 ThreadSafepointState *_safepoint_state; // Holds information about a thread during a safepoint | |
875 address _saved_exception_pc; // Saved pc of instruction where last implicit exception happened | |
876 | |
877 // JavaThread termination support | |
878 enum TerminatedTypes { | |
879 _not_terminated = 0xDEAD - 2, | |
880 _thread_exiting, // JavaThread::exit() has been called for this thread | |
881 _thread_terminated, // JavaThread is removed from thread list | |
882 _vm_exited // JavaThread is still executing native code, but VM is terminated | |
883 // only VM_Exit can set _vm_exited | |
884 }; | |
885 | |
886 // In general a JavaThread's _terminated field transitions as follows: | |
887 // | |
888 // _not_terminated => _thread_exiting => _thread_terminated | |
889 // | |
890 // _vm_exited is a special value to cover the case of a JavaThread | |
891 // executing native code after the VM itself is terminated. | |
2126
db2b0f8c1cef
6814943: getcpool001 catches more than one JvmtiThreadState problem
kamg
parents:
2100
diff
changeset
|
892 volatile TerminatedTypes _terminated; |
0 | 893 // suspend/resume support |
894 volatile bool _suspend_equivalent; // Suspend equivalent condition | |
895 jint _in_deopt_handler; // count of deoptimization | |
896 // handlers thread is in | |
897 volatile bool _doing_unsafe_access; // Thread may fault due to unsafe access | |
898 bool _do_not_unlock_if_synchronized; // Do not unlock the receiver of a synchronized method (since it was | |
899 // never locked) when throwing an exception. Used by interpreter only. | |
900 | |
4006 | 901 // JNI attach states: |
902 enum JNIAttachStates { | |
903 _not_attaching_via_jni = 1, // thread is not attaching via JNI | |
904 _attaching_via_jni, // thread is attaching via JNI | |
905 _attached_via_jni // thread has attached via JNI | |
906 }; | |
907 | |
908 // A regular JavaThread's _jni_attach_state is _not_attaching_via_jni. | |
909 // A native thread that is attaching via JNI starts with a value | |
910 // of _attaching_via_jni and transitions to _attached_via_jni. | |
911 volatile JNIAttachStates _jni_attach_state; | |
0 | 912 |
913 public: | |
914 // State of the stack guard pages for this thread. | |
915 enum StackGuardState { | |
916 stack_guard_unused, // not needed | |
917 stack_guard_yellow_disabled,// disabled (temporarily) after stack overflow | |
918 stack_guard_enabled // enabled | |
919 }; | |
920 | |
921 private: | |
922 | |
5747
120820e30baa
added basic high-level interpreter support to HotSpot
Christian Haeubl <haeubl@ssw.jku.at>
parents:
5056
diff
changeset
|
923 #ifdef GRAAL |
10409 | 924 address _graal_alternate_call_target; |
16006
66a9286203a2
decoupled Graal runtime initialization and Graal compilation queue initialization
Doug Simon <doug.simon@oracle.com>
parents:
15463
diff
changeset
|
925 address _graal_implicit_exception_pc; // pc at which the most recent implicit exception occurred |
11852
d7964e96b0b0
move benchmark counters into separate class and make them correct for multithreaded applications
Lukas Stadler <lukas.stadler@jku.at>
parents:
11173
diff
changeset
|
926 |
13796
8cd953e97e2d
rework of benchmark counters: fix size at VM entry, not at build time
Lukas Stadler <lukas.stadler@jku.at>
parents:
13089
diff
changeset
|
927 jlong* _graal_counters; |
11852
d7964e96b0b0
move benchmark counters into separate class and make them correct for multithreaded applications
Lukas Stadler <lukas.stadler@jku.at>
parents:
11173
diff
changeset
|
928 |
d7964e96b0b0
move benchmark counters into separate class and make them correct for multithreaded applications
Lukas Stadler <lukas.stadler@jku.at>
parents:
11173
diff
changeset
|
929 public: |
13796
8cd953e97e2d
rework of benchmark counters: fix size at VM entry, not at build time
Lukas Stadler <lukas.stadler@jku.at>
parents:
13089
diff
changeset
|
930 static jlong* _graal_old_thread_counters; |
11852
d7964e96b0b0
move benchmark counters into separate class and make them correct for multithreaded applications
Lukas Stadler <lukas.stadler@jku.at>
parents:
11173
diff
changeset
|
931 static void collect_counters(typeArrayOop array); |
d7964e96b0b0
move benchmark counters into separate class and make them correct for multithreaded applications
Lukas Stadler <lukas.stadler@jku.at>
parents:
11173
diff
changeset
|
932 private: |
11893
ec267141f753
more javadoc and output tweaks for dynamic counters
Lukas Stadler <lukas.stadler@jku.at>
parents:
11852
diff
changeset
|
933 #endif // GRAAL |
14909 | 934 StackGuardState _stack_guard_state; |
0 | 935 |
3696
dc7902820c9b
Make NMethodSweeper work on any JavaThread
Gilles Duboscq <gilles.m.duboscq@gmail.com>
parents:
3650
diff
changeset
|
936 nmethod* _scanned_nmethod; // nmethod being scanned by the sweeper |
dc7902820c9b
Make NMethodSweeper work on any JavaThread
Gilles Duboscq <gilles.m.duboscq@gmail.com>
parents:
3650
diff
changeset
|
937 |
0 | 938 // Compiler exception handling (NOTE: The _exception_oop is *NOT* the same as _pending_exception. It is |
939 // used to temp. parsing values into and out of the runtime system during exception handling for compiled | |
940 // code) | |
941 volatile oop _exception_oop; // Exception thrown in compiled code | |
942 volatile address _exception_pc; // PC where exception happened | |
943 volatile address _exception_handler_pc; // PC for handler of exception | |
1368
93767e6a2dfd
6941529: SharedRuntime::raw_exception_handler_for_return_address must reset thread MethodHandle flag
twisti
parents:
1213
diff
changeset
|
944 volatile int _is_method_handle_return; // true (== 1) if the current exception PC is a MethodHandle call site. |
0 | 945 |
16242
e9998e2be7f5
use oops_do to modify saved hsail state
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
16023
diff
changeset
|
946 #ifdef GRAAL |
14768
3e9a960f0da1
HSAIL: preliminary deopt support
Doug Simon <doug.simon@oracle.com>
parents:
14518
diff
changeset
|
947 // Record the method and bci from a gpu kernel exception so |
3e9a960f0da1
HSAIL: preliminary deopt support
Doug Simon <doug.simon@oracle.com>
parents:
14518
diff
changeset
|
948 // it can be added into the exception stack trace |
3e9a960f0da1
HSAIL: preliminary deopt support
Doug Simon <doug.simon@oracle.com>
parents:
14518
diff
changeset
|
949 jint _gpu_exception_bci; |
3e9a960f0da1
HSAIL: preliminary deopt support
Doug Simon <doug.simon@oracle.com>
parents:
14518
diff
changeset
|
950 Method* _gpu_exception_method; |
16242
e9998e2be7f5
use oops_do to modify saved hsail state
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
16023
diff
changeset
|
951 // Record the hsailDeoptimization info so gc oops_do processing can find it |
e9998e2be7f5
use oops_do to modify saved hsail state
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
16023
diff
changeset
|
952 void* _gpu_hsail_deopt_info; |
e9998e2be7f5
use oops_do to modify saved hsail state
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
16023
diff
changeset
|
953 #endif |
e9998e2be7f5
use oops_do to modify saved hsail state
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
16023
diff
changeset
|
954 |
14768
3e9a960f0da1
HSAIL: preliminary deopt support
Doug Simon <doug.simon@oracle.com>
parents:
14518
diff
changeset
|
955 public: |
16242
e9998e2be7f5
use oops_do to modify saved hsail state
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
16023
diff
changeset
|
956 #ifdef GRAAL |
14768
3e9a960f0da1
HSAIL: preliminary deopt support
Doug Simon <doug.simon@oracle.com>
parents:
14518
diff
changeset
|
957 void set_gpu_exception_bci(jint bci) { _gpu_exception_bci = bci; } |
3e9a960f0da1
HSAIL: preliminary deopt support
Doug Simon <doug.simon@oracle.com>
parents:
14518
diff
changeset
|
958 jint get_gpu_exception_bci() { return _gpu_exception_bci; } |
3e9a960f0da1
HSAIL: preliminary deopt support
Doug Simon <doug.simon@oracle.com>
parents:
14518
diff
changeset
|
959 void set_gpu_exception_method(Method* method) { _gpu_exception_method = method; } |
3e9a960f0da1
HSAIL: preliminary deopt support
Doug Simon <doug.simon@oracle.com>
parents:
14518
diff
changeset
|
960 Method* get_gpu_exception_method() { return _gpu_exception_method; } |
16242
e9998e2be7f5
use oops_do to modify saved hsail state
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
16023
diff
changeset
|
961 void set_gpu_hsail_deopt_info(void * deoptInfo) { _gpu_hsail_deopt_info = deoptInfo; } |
e9998e2be7f5
use oops_do to modify saved hsail state
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
16023
diff
changeset
|
962 void* get_gpu_hsail_deopt_info() { return _gpu_hsail_deopt_info; } |
e9998e2be7f5
use oops_do to modify saved hsail state
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
16023
diff
changeset
|
963 #endif |
14768
3e9a960f0da1
HSAIL: preliminary deopt support
Doug Simon <doug.simon@oracle.com>
parents:
14518
diff
changeset
|
964 |
3e9a960f0da1
HSAIL: preliminary deopt support
Doug Simon <doug.simon@oracle.com>
parents:
14518
diff
changeset
|
965 private: |
0 | 966 // support for JNI critical regions |
967 jint _jni_active_critical; // count of entries into JNI critical region | |
968 | |
969 // For deadlock detection. | |
970 int _depth_first_number; | |
971 | |
972 // JVMTI PopFrame support | |
973 // This is set to popframe_pending to signal that top Java frame should be popped immediately | |
974 int _popframe_condition; | |
975 | |
976 #ifndef PRODUCT | |
977 int _jmp_ring_index; | |
978 struct { | |
979 // We use intptr_t instead of address so debugger doesn't try and display strings | |
980 intptr_t _target; | |
981 intptr_t _instruction; | |
982 const char* _file; | |
983 int _line; | |
984 } _jmp_ring[ jump_ring_buffer_size ]; | |
985 #endif /* PRODUCT */ | |
986 | |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7179
diff
changeset
|
987 #if INCLUDE_ALL_GCS |
342 | 988 // Support for G1 barriers |
989 | |
990 ObjPtrQueue _satb_mark_queue; // Thread-local log for SATB barrier. | |
991 // Set of all such queues. | |
992 static SATBMarkQueueSet _satb_mark_queue_set; | |
993 | |
994 DirtyCardQueue _dirty_card_queue; // Thread-local log for dirty cards. | |
995 // Set of all such queues. | |
996 static DirtyCardQueueSet _dirty_card_queue_set; | |
441
da9cb4e97a5f
6770608: G1: Mutator thread can flush barrier and satb queues during safepoint
iveresov
parents:
342
diff
changeset
|
997 |
da9cb4e97a5f
6770608: G1: Mutator thread can flush barrier and satb queues during safepoint
iveresov
parents:
342
diff
changeset
|
998 void flush_barrier_queues(); |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7179
diff
changeset
|
999 #endif // INCLUDE_ALL_GCS |
342 | 1000 |
0 | 1001 friend class VMThread; |
1002 friend class ThreadWaitTransition; | |
1003 friend class VM_Exit; | |
1004 | |
1005 void initialize(); // Initialized the instance variables | |
1006 | |
1007 public: | |
1008 // Constructor | |
4006 | 1009 JavaThread(bool is_attaching_via_jni = false); // for main thread and JNI attached threads |
0 | 1010 JavaThread(ThreadFunction entry_point, size_t stack_size = 0); |
1011 ~JavaThread(); | |
1012 | |
1013 #ifdef ASSERT | |
1014 // verify this JavaThread hasn't be published in the Threads::list yet | |
1015 void verify_not_published(); | |
1016 #endif | |
1017 | |
1018 //JNI functiontable getter/setter for JVMTI jni function table interception API. | |
1019 void set_jni_functions(struct JNINativeInterface_* functionTable) { | |
1020 _jni_environment.functions = functionTable; | |
1021 } | |
1022 struct JNINativeInterface_* get_jni_functions() { | |
1023 return (struct JNINativeInterface_ *)_jni_environment.functions; | |
1024 } | |
1025 | |
3555
22d11b3bc561
Various hacks to be able to install machine code from a Java thread.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
3543
diff
changeset
|
1026 |
22d11b3bc561
Various hacks to be able to install machine code from a Java thread.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
3543
diff
changeset
|
1027 BufferBlob* get_buffer_blob() { return _buffer_blob; } |
22d11b3bc561
Various hacks to be able to install machine code from a Java thread.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
3543
diff
changeset
|
1028 void set_buffer_blob(BufferBlob* b) { _buffer_blob = b; }; |
0 | 1029 |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1640
diff
changeset
|
1030 // This function is called at thread creation to allow |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1640
diff
changeset
|
1031 // platform specific thread variables to be initialized. |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1640
diff
changeset
|
1032 void cache_global_variables(); |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1640
diff
changeset
|
1033 |
0 | 1034 // Executes Shutdown.shutdown() |
1035 void invoke_shutdown_hooks(); | |
1036 | |
1037 // Cleanup on thread exit | |
1038 enum ExitType { | |
1039 normal_exit, | |
1040 jni_detach | |
1041 }; | |
1042 void exit(bool destroy_vm, ExitType exit_type = normal_exit); | |
1043 | |
1044 void cleanup_failed_attach_current_thread(); | |
1045 | |
3696
dc7902820c9b
Make NMethodSweeper work on any JavaThread
Gilles Duboscq <gilles.m.duboscq@gmail.com>
parents:
3650
diff
changeset
|
1046 // Track the nmethod currently being scanned by the sweeper |
dc7902820c9b
Make NMethodSweeper work on any JavaThread
Gilles Duboscq <gilles.m.duboscq@gmail.com>
parents:
3650
diff
changeset
|
1047 void set_scanned_nmethod(nmethod* nm) { |
dc7902820c9b
Make NMethodSweeper work on any JavaThread
Gilles Duboscq <gilles.m.duboscq@gmail.com>
parents:
3650
diff
changeset
|
1048 assert(_scanned_nmethod == NULL || nm == NULL, "should reset to NULL before writing a new value"); |
dc7902820c9b
Make NMethodSweeper work on any JavaThread
Gilles Duboscq <gilles.m.duboscq@gmail.com>
parents:
3650
diff
changeset
|
1049 _scanned_nmethod = nm; |
dc7902820c9b
Make NMethodSweeper work on any JavaThread
Gilles Duboscq <gilles.m.duboscq@gmail.com>
parents:
3650
diff
changeset
|
1050 } |
dc7902820c9b
Make NMethodSweeper work on any JavaThread
Gilles Duboscq <gilles.m.duboscq@gmail.com>
parents:
3650
diff
changeset
|
1051 |
0 | 1052 // Testers |
1053 virtual bool is_Java_thread() const { return true; } | |
1054 | |
1055 // Thread chain operations | |
1056 JavaThread* next() const { return _next; } | |
1057 void set_next(JavaThread* p) { _next = p; } | |
1058 | |
1059 // Thread oop. threadObj() can be NULL for initial JavaThread | |
1060 // (or for threads attached via JNI) | |
1061 oop threadObj() const { return _threadObj; } | |
1062 void set_threadObj(oop p) { _threadObj = p; } | |
1063 | |
1064 ThreadPriority java_priority() const; // Read from threadObj() | |
1065 | |
1066 // Prepare thread and add to priority queue. If a priority is | |
1067 // not specified, use the priority of the thread object. Threads_lock | |
1068 // must be held while this function is called. | |
1069 void prepare(jobject jni_thread, ThreadPriority prio=NoPriority); | |
1070 | |
1071 void set_saved_exception_pc(address pc) { _saved_exception_pc = pc; } | |
1072 address saved_exception_pc() { return _saved_exception_pc; } | |
1073 | |
1074 | |
1075 ThreadFunction entry_point() const { return _entry_point; } | |
1076 | |
1077 // Allocates a new Java level thread object for this thread. thread_name may be NULL. | |
1078 void allocate_threadObj(Handle thread_group, char* thread_name, bool daemon, TRAPS); | |
1079 | |
1080 // Last frame anchor routines | |
1081 | |
14909 | 1082 JavaFrameAnchor* frame_anchor(void) { return &_anchor; } |
0 | 1083 |
1084 // last_Java_sp | |
14909 | 1085 bool has_last_Java_frame() const { return _anchor.has_last_Java_frame(); } |
1086 intptr_t* last_Java_sp() const { return _anchor.last_Java_sp(); } | |
0 | 1087 |
1088 // last_Java_pc | |
1089 | |
14909 | 1090 address last_Java_pc(void) { return _anchor.last_Java_pc(); } |
0 | 1091 |
1092 // Safepoint support | |
14454
6a6c94b49dab
8032634: Add #ifdef PPC64 around OrderAccess operations on _thread_state.
goetz
parents:
14443
diff
changeset
|
1093 JavaThreadState thread_state() const { return _thread_state; } |
14909 | 1094 void set_thread_state(JavaThreadState s) { _thread_state=s; } |
1095 ThreadSafepointState *safepoint_state() const { return _safepoint_state; } | |
0 | 1096 void set_safepoint_state(ThreadSafepointState *state) { _safepoint_state = state; } |
1097 bool is_at_poll_safepoint() { return _safepoint_state->is_at_poll_safepoint(); } | |
1098 | |
1099 // thread has called JavaThread::exit() or is terminated | |
1100 bool is_exiting() { return _terminated == _thread_exiting || is_terminated(); } | |
1101 // thread is terminated (no longer on the threads list); we compare | |
1102 // against the two non-terminated values so that a freed JavaThread | |
1103 // will also be considered terminated. | |
1104 bool is_terminated() { return _terminated != _not_terminated && _terminated != _thread_exiting; } | |
1105 void set_terminated(TerminatedTypes t) { _terminated = t; } | |
1106 // special for Threads::remove() which is static: | |
1107 void set_terminated_value() { _terminated = _thread_terminated; } | |
1108 void block_if_vm_exited(); | |
1109 | |
1110 bool doing_unsafe_access() { return _doing_unsafe_access; } | |
1111 void set_doing_unsafe_access(bool val) { _doing_unsafe_access = val; } | |
1112 | |
1113 bool do_not_unlock_if_synchronized() { return _do_not_unlock_if_synchronized; } | |
1114 void set_do_not_unlock_if_synchronized(bool val) { _do_not_unlock_if_synchronized = val; } | |
1115 | |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6725
diff
changeset
|
1116 #if INCLUDE_NMT |
6197 | 1117 // native memory tracking |
1118 inline MemRecorder* get_recorder() const { return (MemRecorder*)_recorder; } | |
10096
35f8765422b9
8010151: nsk/regression/b6653214 fails "assert(snapshot != NULL) failed: Worker should not be started"
zgu
parents:
8710
diff
changeset
|
1119 inline void set_recorder(MemRecorder* rc) { _recorder = rc; } |
6197 | 1120 |
1121 private: | |
1122 // per-thread memory recorder | |
10096
35f8765422b9
8010151: nsk/regression/b6653214 fails "assert(snapshot != NULL) failed: Worker should not be started"
zgu
parents:
8710
diff
changeset
|
1123 MemRecorder* volatile _recorder; |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6725
diff
changeset
|
1124 #endif // INCLUDE_NMT |
0 | 1125 |
1126 // Suspend/resume support for JavaThread | |
1127 private: | |
1128 void set_ext_suspended() { set_suspend_flag (_ext_suspended); } | |
1129 void clear_ext_suspended() { clear_suspend_flag(_ext_suspended); } | |
1130 | |
1131 public: | |
1132 void java_suspend(); | |
1133 void java_resume(); | |
1134 int java_suspend_self(); | |
1135 | |
1136 void check_and_wait_while_suspended() { | |
1137 assert(JavaThread::current() == this, "sanity check"); | |
1138 | |
1139 bool do_self_suspend; | |
1140 do { | |
1141 // were we externally suspended while we were waiting? | |
1142 do_self_suspend = handle_special_suspend_equivalent_condition(); | |
1143 if (do_self_suspend) { | |
1144 // don't surprise the thread that suspended us by returning | |
1145 java_suspend_self(); | |
1146 set_suspend_equivalent(); | |
1147 } | |
1148 } while (do_self_suspend); | |
1149 } | |
1150 static void check_safepoint_and_suspend_for_native_trans(JavaThread *thread); | |
1151 // Check for async exception in addition to safepoint and suspend request. | |
1152 static void check_special_condition_for_native_trans(JavaThread *thread); | |
1153 | |
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4867
diff
changeset
|
1154 // Same as check_special_condition_for_native_trans but finishes the |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4867
diff
changeset
|
1155 // transition into thread_in_Java mode so that it can potentially |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4867
diff
changeset
|
1156 // block. |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4867
diff
changeset
|
1157 static void check_special_condition_for_native_trans_and_transition(JavaThread *thread); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4867
diff
changeset
|
1158 |
0 | 1159 bool is_ext_suspend_completed(bool called_by_wait, int delay, uint32_t *bits); |
1160 bool is_ext_suspend_completed_with_lock(uint32_t *bits) { | |
1161 MutexLockerEx ml(SR_lock(), Mutex::_no_safepoint_check_flag); | |
1162 // Warning: is_ext_suspend_completed() may temporarily drop the | |
1163 // SR_lock to allow the thread to reach a stable thread state if | |
1164 // it is currently in a transient thread state. | |
1165 return is_ext_suspend_completed(false /*!called_by_wait */, | |
1166 SuspendRetryDelay, bits); | |
1167 } | |
1168 | |
1169 // We cannot allow wait_for_ext_suspend_completion() to run forever or | |
1170 // we could hang. SuspendRetryCount and SuspendRetryDelay are normally | |
1171 // passed as the count and delay parameters. Experiments with specific | |
1172 // calls to wait_for_ext_suspend_completion() can be done by passing | |
1173 // other values in the code. Experiments with all calls can be done | |
1174 // via the appropriate -XX options. | |
1175 bool wait_for_ext_suspend_completion(int count, int delay, uint32_t *bits); | |
1176 | |
1177 void set_external_suspend() { set_suspend_flag (_external_suspend); } | |
1178 void clear_external_suspend() { clear_suspend_flag(_external_suspend); } | |
1179 | |
1180 void set_deopt_suspend() { set_suspend_flag (_deopt_suspend); } | |
1181 void clear_deopt_suspend() { clear_suspend_flag(_deopt_suspend); } | |
1182 bool is_deopt_suspend() { return (_suspend_flags & _deopt_suspend) != 0; } | |
1183 | |
1184 bool is_external_suspend() const { | |
1185 return (_suspend_flags & _external_suspend) != 0; | |
1186 } | |
1187 // Whenever a thread transitions from native to vm/java it must suspend | |
1188 // if external|deopt suspend is present. | |
1189 bool is_suspend_after_native() const { | |
1190 return (_suspend_flags & (_external_suspend | _deopt_suspend) ) != 0; | |
1191 } | |
1192 | |
1193 // external suspend request is completed | |
1194 bool is_ext_suspended() const { | |
1195 return (_suspend_flags & _ext_suspended) != 0; | |
1196 } | |
1197 | |
1198 bool is_external_suspend_with_lock() const { | |
1199 MutexLockerEx ml(SR_lock(), Mutex::_no_safepoint_check_flag); | |
1200 return is_external_suspend(); | |
1201 } | |
1202 | |
1203 // Special method to handle a pending external suspend request | |
1204 // when a suspend equivalent condition lifts. | |
1205 bool handle_special_suspend_equivalent_condition() { | |
1206 assert(is_suspend_equivalent(), | |
1207 "should only be called in a suspend equivalence condition"); | |
1208 MutexLockerEx ml(SR_lock(), Mutex::_no_safepoint_check_flag); | |
1209 bool ret = is_external_suspend(); | |
1210 if (!ret) { | |
1211 // not about to self-suspend so clear suspend equivalence | |
1212 clear_suspend_equivalent(); | |
1213 } | |
1214 // implied else: | |
1215 // We have a pending external suspend request so we leave the | |
1216 // suspend_equivalent flag set until java_suspend_self() sets | |
1217 // the ext_suspended flag and clears the suspend_equivalent | |
1218 // flag. This insures that wait_for_ext_suspend_completion() | |
1219 // will return consistent values. | |
1220 return ret; | |
1221 } | |
1222 | |
1223 // utility methods to see if we are doing some kind of suspension | |
1224 bool is_being_ext_suspended() const { | |
1225 MutexLockerEx ml(SR_lock(), Mutex::_no_safepoint_check_flag); | |
1226 return is_ext_suspended() || is_external_suspend(); | |
1227 } | |
1228 | |
1229 bool is_suspend_equivalent() const { return _suspend_equivalent; } | |
1230 | |
1231 void set_suspend_equivalent() { _suspend_equivalent = true; }; | |
1232 void clear_suspend_equivalent() { _suspend_equivalent = false; }; | |
1233 | |
1234 // Thread.stop support | |
1235 void send_thread_stop(oop throwable); | |
1236 AsyncRequests clear_special_runtime_exit_condition() { | |
1237 AsyncRequests x = _special_runtime_exit_condition; | |
1238 _special_runtime_exit_condition = _no_async_condition; | |
1239 return x; | |
1240 } | |
1241 | |
1242 // Are any async conditions present? | |
1243 bool has_async_condition() { return (_special_runtime_exit_condition != _no_async_condition); } | |
1244 | |
1245 void check_and_handle_async_exceptions(bool check_unsafe_error = true); | |
1246 | |
1247 // these next two are also used for self-suspension and async exception support | |
1248 void handle_special_runtime_exit_condition(bool check_asyncs = true); | |
1249 | |
1250 // Return true if JavaThread has an asynchronous condition or | |
1251 // if external suspension is requested. | |
1252 bool has_special_runtime_exit_condition() { | |
1253 // We call is_external_suspend() last since external suspend should | |
1254 // be less common. Because we don't use is_external_suspend_with_lock | |
1255 // it is possible that we won't see an asynchronous external suspend | |
1256 // request that has just gotten started, i.e., SR_lock grabbed but | |
1257 // _external_suspend field change either not made yet or not visible | |
1258 // yet. However, this is okay because the request is asynchronous and | |
1259 // we will see the new flag value the next time through. It's also | |
1260 // possible that the external suspend request is dropped after | |
1261 // we have checked is_external_suspend(), we will recheck its value | |
1262 // under SR_lock in java_suspend_self(). | |
1263 return (_special_runtime_exit_condition != _no_async_condition) || | |
1264 is_external_suspend() || is_deopt_suspend(); | |
1265 } | |
1266 | |
1267 void set_pending_unsafe_access_error() { _special_runtime_exit_condition = _async_unsafe_access_error; } | |
1268 | |
1269 void set_pending_async_exception(oop e) { | |
1270 _pending_async_exception = e; | |
1271 _special_runtime_exit_condition = _async_exception; | |
1272 set_has_async_exception(); | |
1273 } | |
1274 | |
1275 // Fast-locking support | |
1276 bool is_lock_owned(address adr) const; | |
1277 | |
1278 // Accessors for vframe array top | |
1279 // The linked list of vframe arrays are sorted on sp. This means when we | |
1280 // unpack the head must contain the vframe array to unpack. | |
1281 void set_vframe_array_head(vframeArray* value) { _vframe_array_head = value; } | |
1282 vframeArray* vframe_array_head() const { return _vframe_array_head; } | |
1283 | |
14909 | 1284 // Side structure for defering update of java frame locals until deopt occurs |
0 | 1285 GrowableArray<jvmtiDeferredLocalVariableSet*>* deferred_locals() const { return _deferred_locals_updates; } |
1286 void set_deferred_locals(GrowableArray<jvmtiDeferredLocalVariableSet *>* vf) { _deferred_locals_updates = vf; } | |
1287 | |
1288 // These only really exist to make debugging deopt problems simpler | |
1289 | |
1290 void set_vframe_array_last(vframeArray* value) { _vframe_array_last = value; } | |
1291 vframeArray* vframe_array_last() const { return _vframe_array_last; } | |
1292 | |
1293 // The special resourceMark used during deoptimization | |
1294 | |
1295 void set_deopt_mark(DeoptResourceMark* value) { _deopt_mark = value; } | |
1296 DeoptResourceMark* deopt_mark(void) { return _deopt_mark; } | |
1297 | |
1298 intptr_t* must_deopt_id() { return _must_deopt_id; } | |
1299 void set_must_deopt_id(intptr_t* id) { _must_deopt_id = id; } | |
1300 void clear_must_deopt_id() { _must_deopt_id = NULL; } | |
1301 | |
1814
fd5d4527cdf5
6986270: guarantee(*bcp != Bytecodes::_monitorenter || exec_mode != Deoptimization::Unpack_exception) fails
iveresov
parents:
1689
diff
changeset
|
1302 void set_deopt_nmethod(nmethod* nm) { _deopt_nmethod = nm; } |
fd5d4527cdf5
6986270: guarantee(*bcp != Bytecodes::_monitorenter || exec_mode != Deoptimization::Unpack_exception) fails
iveresov
parents:
1689
diff
changeset
|
1303 nmethod* deopt_nmethod() { return _deopt_nmethod; } |
fd5d4527cdf5
6986270: guarantee(*bcp != Bytecodes::_monitorenter || exec_mode != Deoptimization::Unpack_exception) fails
iveresov
parents:
1689
diff
changeset
|
1304 |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1305 Method* callee_target() const { return _callee_target; } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1306 void set_callee_target (Method* x) { _callee_target = x; } |
0 | 1307 |
1308 // Oop results of vm runtime calls | |
1309 oop vm_result() const { return _vm_result; } | |
1310 void set_vm_result (oop x) { _vm_result = x; } | |
1311 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1312 Metadata* vm_result_2() const { return _vm_result_2; } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1313 void set_vm_result_2 (Metadata* x) { _vm_result_2 = x; } |
0 | 1314 |
1027
39b01ab7035a
6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning
ysr
parents:
997
diff
changeset
|
1315 MemRegion deferred_card_mark() const { return _deferred_card_mark; } |
39b01ab7035a
6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning
ysr
parents:
997
diff
changeset
|
1316 void set_deferred_card_mark(MemRegion mr) { _deferred_card_mark = mr; } |
39b01ab7035a
6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning
ysr
parents:
997
diff
changeset
|
1317 |
5747
120820e30baa
added basic high-level interpreter support to HotSpot
Christian Haeubl <haeubl@ssw.jku.at>
parents:
5056
diff
changeset
|
1318 #ifdef GRAAL |
4993
897b7d18bebc
added RiCompiledMethod.execute and the required VM infrastructure
Lukas Stadler <lukas.stadler@jku.at>
parents:
4970
diff
changeset
|
1319 void set_graal_alternate_call_target(address a) { _graal_alternate_call_target = a; } |
10409 | 1320 void set_graal_implicit_exception_pc(address a) { _graal_implicit_exception_pc = a; } |
5747
120820e30baa
added basic high-level interpreter support to HotSpot
Christian Haeubl <haeubl@ssw.jku.at>
parents:
5056
diff
changeset
|
1321 #endif |
4993
897b7d18bebc
added RiCompiledMethod.execute and the required VM infrastructure
Lukas Stadler <lukas.stadler@jku.at>
parents:
4970
diff
changeset
|
1322 |
0 | 1323 // Exception handling for compiled methods |
1324 oop exception_oop() const { return _exception_oop; } | |
1325 address exception_pc() const { return _exception_pc; } | |
1326 address exception_handler_pc() const { return _exception_handler_pc; } | |
1368
93767e6a2dfd
6941529: SharedRuntime::raw_exception_handler_for_return_address must reset thread MethodHandle flag
twisti
parents:
1213
diff
changeset
|
1327 bool is_method_handle_return() const { return _is_method_handle_return == 1; } |
0 | 1328 |
12316
190899198332
7195622: CheckUnhandledOops has limited usefulness now
hseigel
parents:
12146
diff
changeset
|
1329 void set_exception_oop(oop o) { (void)const_cast<oop&>(_exception_oop = o); } |
0 | 1330 void set_exception_pc(address a) { _exception_pc = a; } |
1331 void set_exception_handler_pc(address a) { _exception_handler_pc = a; } | |
1368
93767e6a2dfd
6941529: SharedRuntime::raw_exception_handler_for_return_address must reset thread MethodHandle flag
twisti
parents:
1213
diff
changeset
|
1332 void set_is_method_handle_return(bool value) { _is_method_handle_return = value ? 1 : 0; } |
0 | 1333 |
12876
8b80b262e501
8005173: assert(false) failed: DEBUG MESSAGE: exception oop must be empty (macroAssembler_x86.cpp:625)
twisti
parents:
12316
diff
changeset
|
1334 void clear_exception_oop_and_pc() { |
8b80b262e501
8005173: assert(false) failed: DEBUG MESSAGE: exception oop must be empty (macroAssembler_x86.cpp:625)
twisti
parents:
12316
diff
changeset
|
1335 set_exception_oop(NULL); |
8b80b262e501
8005173: assert(false) failed: DEBUG MESSAGE: exception oop must be empty (macroAssembler_x86.cpp:625)
twisti
parents:
12316
diff
changeset
|
1336 set_exception_pc(NULL); |
8b80b262e501
8005173: assert(false) failed: DEBUG MESSAGE: exception oop must be empty (macroAssembler_x86.cpp:625)
twisti
parents:
12316
diff
changeset
|
1337 } |
8b80b262e501
8005173: assert(false) failed: DEBUG MESSAGE: exception oop must be empty (macroAssembler_x86.cpp:625)
twisti
parents:
12316
diff
changeset
|
1338 |
0 | 1339 // Stack overflow support |
1340 inline size_t stack_available(address cur_sp); | |
1341 address stack_yellow_zone_base() | |
1342 { return (address)(stack_base() - (stack_size() - (stack_red_zone_size() + stack_yellow_zone_size()))); } | |
1343 size_t stack_yellow_zone_size() | |
1344 { return StackYellowPages * os::vm_page_size(); } | |
1345 address stack_red_zone_base() | |
1346 { return (address)(stack_base() - (stack_size() - stack_red_zone_size())); } | |
1347 size_t stack_red_zone_size() | |
1348 { return StackRedPages * os::vm_page_size(); } | |
1349 bool in_stack_yellow_zone(address a) | |
1350 { return (a <= stack_yellow_zone_base()) && (a >= stack_red_zone_base()); } | |
1351 bool in_stack_red_zone(address a) | |
1352 { return (a <= stack_red_zone_base()) && (a >= (address)((intptr_t)stack_base() - stack_size())); } | |
1353 | |
1354 void create_stack_guard_pages(); | |
1355 void remove_stack_guard_pages(); | |
1356 | |
1357 void enable_stack_yellow_zone(); | |
1358 void disable_stack_yellow_zone(); | |
1359 void enable_stack_red_zone(); | |
1360 void disable_stack_red_zone(); | |
1361 | |
8710
9058789475af
7107135: Stack guard pages are no more protected after loading a shared library with executable stack
iklam
parents:
8001
diff
changeset
|
1362 inline bool stack_guard_zone_unused(); |
0 | 1363 inline bool stack_yellow_zone_disabled(); |
1364 inline bool stack_yellow_zone_enabled(); | |
1365 | |
1366 // Attempt to reguard the stack after a stack overflow may have occurred. | |
1367 // Returns true if (a) guard pages are not needed on this thread, (b) the | |
1368 // pages are already guarded, or (c) the pages were successfully reguarded. | |
1369 // Returns false if there is not enough stack space to reguard the pages, in | |
1370 // which case the caller should unwind a frame and try again. The argument | |
1371 // should be the caller's (approximate) sp. | |
1372 bool reguard_stack(address cur_sp); | |
1373 // Similar to above but see if current stackpoint is out of the guard area | |
1374 // and reguard if possible. | |
1375 bool reguard_stack(void); | |
1376 | |
1377 // Misc. accessors/mutators | |
1378 void set_do_not_unlock(void) { _do_not_unlock_if_synchronized = true; } | |
1379 void clr_do_not_unlock(void) { _do_not_unlock_if_synchronized = false; } | |
1380 bool do_not_unlock(void) { return _do_not_unlock_if_synchronized; } | |
1381 | |
1382 #ifndef PRODUCT | |
1383 void record_jump(address target, address instr, const char* file, int line); | |
1384 #endif /* PRODUCT */ | |
1385 | |
1386 // For assembly stub generation | |
1387 static ByteSize threadObj_offset() { return byte_offset_of(JavaThread, _threadObj ); } | |
1388 #ifndef PRODUCT | |
1389 static ByteSize jmp_ring_index_offset() { return byte_offset_of(JavaThread, _jmp_ring_index ); } | |
1390 static ByteSize jmp_ring_offset() { return byte_offset_of(JavaThread, _jmp_ring ); } | |
1391 #endif /* PRODUCT */ | |
1392 static ByteSize jni_environment_offset() { return byte_offset_of(JavaThread, _jni_environment ); } | |
1393 static ByteSize last_Java_sp_offset() { | |
1394 return byte_offset_of(JavaThread, _anchor) + JavaFrameAnchor::last_Java_sp_offset(); | |
1395 } | |
1396 static ByteSize last_Java_pc_offset() { | |
1397 return byte_offset_of(JavaThread, _anchor) + JavaFrameAnchor::last_Java_pc_offset(); | |
1398 } | |
1399 static ByteSize frame_anchor_offset() { | |
1400 return byte_offset_of(JavaThread, _anchor); | |
1401 } | |
1402 static ByteSize callee_target_offset() { return byte_offset_of(JavaThread, _callee_target ); } | |
1403 static ByteSize vm_result_offset() { return byte_offset_of(JavaThread, _vm_result ); } | |
1404 static ByteSize vm_result_2_offset() { return byte_offset_of(JavaThread, _vm_result_2 ); } | |
1405 static ByteSize thread_state_offset() { return byte_offset_of(JavaThread, _thread_state ); } | |
1406 static ByteSize saved_exception_pc_offset() { return byte_offset_of(JavaThread, _saved_exception_pc ); } | |
1407 static ByteSize osthread_offset() { return byte_offset_of(JavaThread, _osthread ); } | |
5747
120820e30baa
added basic high-level interpreter support to HotSpot
Christian Haeubl <haeubl@ssw.jku.at>
parents:
5056
diff
changeset
|
1408 #ifdef GRAAL |
4993
897b7d18bebc
added RiCompiledMethod.execute and the required VM infrastructure
Lukas Stadler <lukas.stadler@jku.at>
parents:
4970
diff
changeset
|
1409 static ByteSize graal_alternate_call_target_offset() { return byte_offset_of(JavaThread, _graal_alternate_call_target); } |
10409 | 1410 static ByteSize graal_implicit_exception_pc_offset() { return byte_offset_of(JavaThread, _graal_implicit_exception_pc); } |
11893
ec267141f753
more javadoc and output tweaks for dynamic counters
Lukas Stadler <lukas.stadler@jku.at>
parents:
11852
diff
changeset
|
1411 static ByteSize graal_counters_offset() { return byte_offset_of(JavaThread, _graal_counters ); } |
ec267141f753
more javadoc and output tweaks for dynamic counters
Lukas Stadler <lukas.stadler@jku.at>
parents:
11852
diff
changeset
|
1412 #endif // GRAAL |
0 | 1413 static ByteSize exception_oop_offset() { return byte_offset_of(JavaThread, _exception_oop ); } |
1414 static ByteSize exception_pc_offset() { return byte_offset_of(JavaThread, _exception_pc ); } | |
1415 static ByteSize exception_handler_pc_offset() { return byte_offset_of(JavaThread, _exception_handler_pc); } | |
1368
93767e6a2dfd
6941529: SharedRuntime::raw_exception_handler_for_return_address must reset thread MethodHandle flag
twisti
parents:
1213
diff
changeset
|
1416 static ByteSize is_method_handle_return_offset() { return byte_offset_of(JavaThread, _is_method_handle_return); } |
0 | 1417 static ByteSize stack_guard_state_offset() { return byte_offset_of(JavaThread, _stack_guard_state ); } |
1418 static ByteSize suspend_flags_offset() { return byte_offset_of(JavaThread, _suspend_flags ); } | |
1419 | |
1420 static ByteSize do_not_unlock_if_synchronized_offset() { return byte_offset_of(JavaThread, _do_not_unlock_if_synchronized); } | |
1213
6deeaebad47a
6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents:
1144
diff
changeset
|
1421 static ByteSize should_post_on_exceptions_flag_offset() { |
6deeaebad47a
6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents:
1144
diff
changeset
|
1422 return byte_offset_of(JavaThread, _should_post_on_exceptions_flag); |
6deeaebad47a
6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents:
1144
diff
changeset
|
1423 } |
0 | 1424 |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7179
diff
changeset
|
1425 #if INCLUDE_ALL_GCS |
342 | 1426 static ByteSize satb_mark_queue_offset() { return byte_offset_of(JavaThread, _satb_mark_queue); } |
1427 static ByteSize dirty_card_queue_offset() { return byte_offset_of(JavaThread, _dirty_card_queue); } | |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7179
diff
changeset
|
1428 #endif // INCLUDE_ALL_GCS |
342 | 1429 |
0 | 1430 // Returns the jni environment for this thread |
1431 JNIEnv* jni_environment() { return &_jni_environment; } | |
1432 | |
1433 static JavaThread* thread_from_jni_environment(JNIEnv* env) { | |
1434 JavaThread *thread_from_jni_env = (JavaThread*)((intptr_t)env - in_bytes(jni_environment_offset())); | |
1435 // Only return NULL if thread is off the thread list; starting to | |
1436 // exit should not return NULL. | |
1437 if (thread_from_jni_env->is_terminated()) { | |
1438 thread_from_jni_env->block_if_vm_exited(); | |
1439 return NULL; | |
1440 } else { | |
1441 return thread_from_jni_env; | |
1442 } | |
1443 } | |
1444 | |
1445 // JNI critical regions. These can nest. | |
1446 bool in_critical() { return _jni_active_critical > 0; } | |
4867
1a2723f7ad8e
7129164: JNI Get/ReleasePrimitiveArrayCritical doesn't scale
never
parents:
4800
diff
changeset
|
1447 bool in_last_critical() { return _jni_active_critical == 1; } |
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4867
diff
changeset
|
1448 void enter_critical() { assert(Thread::current() == this || |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4867
diff
changeset
|
1449 Thread::current()->is_VM_thread() && SafepointSynchronize::is_synchronizing(), |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4867
diff
changeset
|
1450 "this must be current thread or synchronizing"); |
0 | 1451 _jni_active_critical++; } |
1452 void exit_critical() { assert(Thread::current() == this, | |
1453 "this must be current thread"); | |
1454 _jni_active_critical--; | |
1455 assert(_jni_active_critical >= 0, | |
1456 "JNI critical nesting problem?"); } | |
1457 | |
1458 // For deadlock detection | |
1459 int depth_first_number() { return _depth_first_number; } | |
1460 void set_depth_first_number(int dfn) { _depth_first_number = dfn; } | |
1461 | |
1462 private: | |
1463 void set_monitor_chunks(MonitorChunk* monitor_chunks) { _monitor_chunks = monitor_chunks; } | |
1464 | |
1465 public: | |
1466 MonitorChunk* monitor_chunks() const { return _monitor_chunks; } | |
1467 void add_monitor_chunk(MonitorChunk* chunk); | |
1468 void remove_monitor_chunk(MonitorChunk* chunk); | |
1469 bool in_deopt_handler() const { return _in_deopt_handler > 0; } | |
1470 void inc_in_deopt_handler() { _in_deopt_handler++; } | |
1471 void dec_in_deopt_handler() { | |
1472 assert(_in_deopt_handler > 0, "mismatched deopt nesting"); | |
1473 if (_in_deopt_handler > 0) { // robustness | |
1474 _in_deopt_handler--; | |
1475 } | |
1476 } | |
1477 | |
1478 private: | |
1479 void set_entry_point(ThreadFunction entry_point) { _entry_point = entry_point; } | |
1480 | |
1481 public: | |
1482 | |
1483 // Frame iteration; calls the function f for all frames on the stack | |
1484 void frames_do(void f(frame*, const RegisterMap*)); | |
1485 | |
1486 // Memory operations | |
14909 | 1487 void oops_do(OopClosure* f, CLDToOopClosure* cld_f, CodeBlobClosure* cf); |
0 | 1488 |
1489 // Sweeper operations | |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
844
diff
changeset
|
1490 void nmethods_do(CodeBlobClosure* cf); |
0 | 1491 |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1492 // RedefineClasses Support |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1493 void metadata_do(void f(Metadata*)); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1494 |
0 | 1495 // Memory management operations |
1496 void gc_epilogue(); | |
1497 void gc_prologue(); | |
1498 | |
1499 // Misc. operations | |
1500 char* name() const { return (char*)get_thread_name(); } | |
1501 void print_on(outputStream* st) const; | |
1502 void print() const { print_on(tty); } | |
1503 void print_value(); | |
1504 void print_thread_state_on(outputStream* ) const PRODUCT_RETURN; | |
1505 void print_thread_state() const PRODUCT_RETURN; | |
1506 void print_on_error(outputStream* st, char* buf, int buflen) const; | |
1507 void verify(); | |
1508 const char* get_thread_name() const; | |
1509 private: | |
1510 // factor out low-level mechanics for use in both normal and error cases | |
1511 const char* get_thread_name_string(char* buf = NULL, int buflen = 0) const; | |
1512 public: | |
1513 const char* get_threadgroup_name() const; | |
1514 const char* get_parent_name() const; | |
1515 | |
1516 // Accessing frames | |
1517 frame last_frame() { | |
1518 _anchor.make_walkable(this); | |
1519 return pd_last_frame(); | |
1520 } | |
1521 javaVFrame* last_java_vframe(RegisterMap* reg_map); | |
1522 | |
1523 // Returns method at 'depth' java or native frames down the stack | |
1524 // Used for security checks | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1525 Klass* security_get_caller_class(int depth); |
0 | 1526 |
1527 // Print stack trace in external format | |
1528 void print_stack_on(outputStream* st); | |
1529 void print_stack() { print_stack_on(tty); } | |
1530 | |
1531 // Print stack traces in various internal formats | |
1532 void trace_stack() PRODUCT_RETURN; | |
1533 void trace_stack_from(vframe* start_vf) PRODUCT_RETURN; | |
1534 void trace_frames() PRODUCT_RETURN; | |
3908
7588156f5cf9
7051798: SA-JDI: NPE in Frame.addressOfStackSlot(Frame.java:244)
never
parents:
3899
diff
changeset
|
1535 void trace_oops() PRODUCT_RETURN; |
0 | 1536 |
3336
2e038ad0c1d0
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents:
2195
diff
changeset
|
1537 // Print an annotated view of the stack frames |
3384
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3336
diff
changeset
|
1538 void print_frame_layout(int depth = 0, bool validate_only = false) NOT_DEBUG_RETURN; |
3336
2e038ad0c1d0
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents:
2195
diff
changeset
|
1539 void validate_frame_layout() { |
2e038ad0c1d0
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents:
2195
diff
changeset
|
1540 print_frame_layout(0, true); |
2e038ad0c1d0
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents:
2195
diff
changeset
|
1541 } |
2e038ad0c1d0
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents:
2195
diff
changeset
|
1542 |
0 | 1543 // Returns the number of stack frames on the stack |
1544 int depth() const; | |
1545 | |
1546 // Function for testing deoptimization | |
1547 void deoptimize(); | |
1548 void make_zombies(); | |
1549 | |
1550 void deoptimized_wrt_marked_nmethods(); | |
1551 | |
1552 // Profiling operation (see fprofile.cpp) | |
1553 public: | |
1554 bool profile_last_Java_frame(frame* fr); | |
1555 | |
1556 private: | |
1557 ThreadProfiler* _thread_profiler; | |
1558 private: | |
1559 friend class FlatProfiler; // uses both [gs]et_thread_profiler. | |
1560 friend class FlatProfilerTask; // uses get_thread_profiler. | |
1561 friend class ThreadProfilerMark; // uses get_thread_profiler. | |
1562 ThreadProfiler* get_thread_profiler() { return _thread_profiler; } | |
1563 ThreadProfiler* set_thread_profiler(ThreadProfiler* tp) { | |
1564 ThreadProfiler* result = _thread_profiler; | |
1565 _thread_profiler = tp; | |
1566 return result; | |
1567 } | |
1568 | |
6197 | 1569 // NMT (Native memory tracking) support. |
1570 // This flag helps NMT to determine if this JavaThread will be blocked | |
1571 // at safepoint. If not, ThreadCritical is needed for writing memory records. | |
1572 // JavaThread is only safepoint visible when it is in Threads' thread list, | |
1573 // it is not visible until it is added to the list and becomes invisible | |
1574 // once it is removed from the list. | |
1575 public: | |
1576 bool is_safepoint_visible() const { return _safepoint_visible; } | |
1577 void set_safepoint_visible(bool visible) { _safepoint_visible = visible; } | |
1578 private: | |
1579 bool _safepoint_visible; | |
1580 | |
0 | 1581 // Static operations |
1582 public: | |
1583 // Returns the running thread as a JavaThread | |
1584 static inline JavaThread* current(); | |
1585 | |
1586 // Returns the active Java thread. Do not use this if you know you are calling | |
1587 // from a JavaThread, as it's slower than JavaThread::current. If called from | |
1588 // the VMThread, it also returns the JavaThread that instigated the VMThread's | |
1589 // operation. You may not want that either. | |
1590 static JavaThread* active(); | |
1591 | |
1592 inline CompilerThread* as_CompilerThread(); | |
1593 | |
1594 public: | |
1595 virtual void run(); | |
1596 void thread_main_inner(); | |
1597 | |
1598 private: | |
1599 // PRIVILEGED STACK | |
1600 PrivilegedElement* _privileged_stack_top; | |
1601 GrowableArray<oop>* _array_for_gc; | |
1602 public: | |
1603 | |
1604 // Returns the privileged_stack information. | |
1605 PrivilegedElement* privileged_stack_top() const { return _privileged_stack_top; } | |
1606 void set_privileged_stack_top(PrivilegedElement *e) { _privileged_stack_top = e; } | |
1607 void register_array_for_gc(GrowableArray<oop>* array) { _array_for_gc = array; } | |
1608 | |
1609 public: | |
1610 // Thread local information maintained by JVMTI. | |
1611 void set_jvmti_thread_state(JvmtiThreadState *value) { _jvmti_thread_state = value; } | |
609
ea20d7ce26b0
6800721: 3/4 JavaThread::jvmti_thread_state() and JvmtiThreadState::state_for() robustness
dcubed
parents:
470
diff
changeset
|
1612 // A JvmtiThreadState is lazily allocated. This jvmti_thread_state() |
ea20d7ce26b0
6800721: 3/4 JavaThread::jvmti_thread_state() and JvmtiThreadState::state_for() robustness
dcubed
parents:
470
diff
changeset
|
1613 // getter is used to get this JavaThread's JvmtiThreadState if it has |
ea20d7ce26b0
6800721: 3/4 JavaThread::jvmti_thread_state() and JvmtiThreadState::state_for() robustness
dcubed
parents:
470
diff
changeset
|
1614 // one which means NULL can be returned. JvmtiThreadState::state_for() |
ea20d7ce26b0
6800721: 3/4 JavaThread::jvmti_thread_state() and JvmtiThreadState::state_for() robustness
dcubed
parents:
470
diff
changeset
|
1615 // is used to get the specified JavaThread's JvmtiThreadState if it has |
ea20d7ce26b0
6800721: 3/4 JavaThread::jvmti_thread_state() and JvmtiThreadState::state_for() robustness
dcubed
parents:
470
diff
changeset
|
1616 // one or it allocates a new JvmtiThreadState for the JavaThread and |
ea20d7ce26b0
6800721: 3/4 JavaThread::jvmti_thread_state() and JvmtiThreadState::state_for() robustness
dcubed
parents:
470
diff
changeset
|
1617 // returns it. JvmtiThreadState::state_for() will return NULL only if |
ea20d7ce26b0
6800721: 3/4 JavaThread::jvmti_thread_state() and JvmtiThreadState::state_for() robustness
dcubed
parents:
470
diff
changeset
|
1618 // the specified JavaThread is exiting. |
0 | 1619 JvmtiThreadState *jvmti_thread_state() const { return _jvmti_thread_state; } |
1620 static ByteSize jvmti_thread_state_offset() { return byte_offset_of(JavaThread, _jvmti_thread_state); } | |
1621 void set_jvmti_get_loaded_classes_closure(JvmtiGetLoadedClassesClosure* value) { _jvmti_get_loaded_classes_closure = value; } | |
1622 JvmtiGetLoadedClassesClosure* get_jvmti_get_loaded_classes_closure() const { return _jvmti_get_loaded_classes_closure; } | |
1623 | |
1624 // JVMTI PopFrame support | |
1625 // Setting and clearing popframe_condition | |
1626 // All of these enumerated values are bits. popframe_pending | |
1627 // indicates that a PopFrame() has been requested and not yet been | |
1628 // completed. popframe_processing indicates that that PopFrame() is in | |
1629 // the process of being completed. popframe_force_deopt_reexecution_bit | |
1630 // indicates that special handling is required when returning to a | |
1631 // deoptimized caller. | |
1632 enum PopCondition { | |
1633 popframe_inactive = 0x00, | |
1634 popframe_pending_bit = 0x01, | |
1635 popframe_processing_bit = 0x02, | |
1636 popframe_force_deopt_reexecution_bit = 0x04 | |
1637 }; | |
1638 PopCondition popframe_condition() { return (PopCondition) _popframe_condition; } | |
1639 void set_popframe_condition(PopCondition c) { _popframe_condition = c; } | |
1640 void set_popframe_condition_bit(PopCondition c) { _popframe_condition |= c; } | |
1641 void clear_popframe_condition() { _popframe_condition = popframe_inactive; } | |
1642 static ByteSize popframe_condition_offset() { return byte_offset_of(JavaThread, _popframe_condition); } | |
1643 bool has_pending_popframe() { return (popframe_condition() & popframe_pending_bit) != 0; } | |
1644 bool popframe_forcing_deopt_reexecution() { return (popframe_condition() & popframe_force_deopt_reexecution_bit) != 0; } | |
1645 void clear_popframe_forcing_deopt_reexecution() { _popframe_condition &= ~popframe_force_deopt_reexecution_bit; } | |
1646 #ifdef CC_INTERP | |
1647 bool pop_frame_pending(void) { return ((_popframe_condition & popframe_pending_bit) != 0); } | |
1648 void clr_pop_frame_pending(void) { _popframe_condition = popframe_inactive; } | |
1649 bool pop_frame_in_process(void) { return ((_popframe_condition & popframe_processing_bit) != 0); } | |
1650 void set_pop_frame_in_process(void) { _popframe_condition |= popframe_processing_bit; } | |
1651 void clr_pop_frame_in_process(void) { _popframe_condition &= ~popframe_processing_bit; } | |
1652 #endif | |
1653 | |
1654 private: | |
1655 // Saved incoming arguments to popped frame. | |
1656 // Used only when popped interpreted frame returns to deoptimized frame. | |
1657 void* _popframe_preserved_args; | |
1658 int _popframe_preserved_args_size; | |
1659 | |
1660 public: | |
1661 void popframe_preserve_args(ByteSize size_in_bytes, void* start); | |
1662 void* popframe_preserved_args(); | |
1663 ByteSize popframe_preserved_args_size(); | |
1664 WordSize popframe_preserved_args_size_in_words(); | |
1665 void popframe_free_preserved_args(); | |
1666 | |
1667 | |
1668 private: | |
1669 JvmtiThreadState *_jvmti_thread_state; | |
1670 JvmtiGetLoadedClassesClosure* _jvmti_get_loaded_classes_closure; | |
1671 | |
1672 // Used by the interpreter in fullspeed mode for frame pop, method | |
1673 // entry, method exit and single stepping support. This field is | |
1674 // only set to non-zero by the VM_EnterInterpOnlyMode VM operation. | |
1675 // It can be set to zero asynchronously (i.e., without a VM operation | |
1676 // or a lock) so we have to be very careful. | |
1677 int _interp_only_mode; | |
1678 | |
1679 public: | |
1680 // used by the interpreter for fullspeed debugging support (see above) | |
1681 static ByteSize interp_only_mode_offset() { return byte_offset_of(JavaThread, _interp_only_mode); } | |
1682 bool is_interp_only_mode() { return (_interp_only_mode != 0); } | |
1683 int get_interp_only_mode() { return _interp_only_mode; } | |
1684 void increment_interp_only_mode() { ++_interp_only_mode; } | |
1685 void decrement_interp_only_mode() { --_interp_only_mode; } | |
1686 | |
1213
6deeaebad47a
6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents:
1144
diff
changeset
|
1687 // support for cached flag that indicates whether exceptions need to be posted for this thread |
6deeaebad47a
6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents:
1144
diff
changeset
|
1688 // if this is false, we can avoid deoptimizing when events are thrown |
6deeaebad47a
6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents:
1144
diff
changeset
|
1689 // this gets set to reflect whether jvmtiExport::post_exception_throw would actually do anything |
6deeaebad47a
6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents:
1144
diff
changeset
|
1690 private: |
6deeaebad47a
6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents:
1144
diff
changeset
|
1691 int _should_post_on_exceptions_flag; |
6deeaebad47a
6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents:
1144
diff
changeset
|
1692 |
6deeaebad47a
6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents:
1144
diff
changeset
|
1693 public: |
6deeaebad47a
6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents:
1144
diff
changeset
|
1694 int should_post_on_exceptions_flag() { return _should_post_on_exceptions_flag; } |
6deeaebad47a
6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents:
1144
diff
changeset
|
1695 void set_should_post_on_exceptions_flag(int val) { _should_post_on_exceptions_flag = val; } |
6deeaebad47a
6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents:
1144
diff
changeset
|
1696 |
0 | 1697 private: |
1698 ThreadStatistics *_thread_stat; | |
1699 | |
1700 public: | |
1701 ThreadStatistics* get_thread_stat() const { return _thread_stat; } | |
1702 | |
1703 // Return a blocker object for which this thread is blocked parking. | |
1704 oop current_park_blocker(); | |
1705 | |
1706 private: | |
1707 static size_t _stack_size_at_create; | |
1708 | |
1709 public: | |
1710 static inline size_t stack_size_at_create(void) { | |
1711 return _stack_size_at_create; | |
1712 } | |
1713 static inline void set_stack_size_at_create(size_t value) { | |
1714 _stack_size_at_create = value; | |
1715 } | |
1716 | |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7179
diff
changeset
|
1717 #if INCLUDE_ALL_GCS |
342 | 1718 // SATB marking queue support |
1719 ObjPtrQueue& satb_mark_queue() { return _satb_mark_queue; } | |
1720 static SATBMarkQueueSet& satb_mark_queue_set() { | |
1721 return _satb_mark_queue_set; | |
1722 } | |
1723 | |
1724 // Dirty card queue support | |
1725 DirtyCardQueue& dirty_card_queue() { return _dirty_card_queue; } | |
1726 static DirtyCardQueueSet& dirty_card_queue_set() { | |
1727 return _dirty_card_queue_set; | |
1728 } | |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7179
diff
changeset
|
1729 #endif // INCLUDE_ALL_GCS |
342 | 1730 |
1842
6e0aac35bfa9
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
1689
diff
changeset
|
1731 // This method initializes the SATB and dirty card queues before a |
6e0aac35bfa9
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
1689
diff
changeset
|
1732 // JavaThread is added to the Java thread list. Right now, we don't |
6e0aac35bfa9
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
1689
diff
changeset
|
1733 // have to do anything to the dirty card queue (it should have been |
6e0aac35bfa9
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
1689
diff
changeset
|
1734 // activated when the thread was created), but we have to activate |
6e0aac35bfa9
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
1689
diff
changeset
|
1735 // the SATB queue if the thread is created while a marking cycle is |
6e0aac35bfa9
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
1689
diff
changeset
|
1736 // in progress. The activation / de-activation of the SATB queues at |
6e0aac35bfa9
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
1689
diff
changeset
|
1737 // the beginning / end of a marking cycle is done during safepoints |
6e0aac35bfa9
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
1689
diff
changeset
|
1738 // so we have to make sure this method is called outside one to be |
6e0aac35bfa9
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
1689
diff
changeset
|
1739 // able to safely read the active field of the SATB queue set. Right |
6e0aac35bfa9
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
1689
diff
changeset
|
1740 // now, it is called just before the thread is added to the Java |
6e0aac35bfa9
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
1689
diff
changeset
|
1741 // thread list in the Threads::add() method. That method is holding |
6e0aac35bfa9
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
1689
diff
changeset
|
1742 // the Threads_lock which ensures we are outside a safepoint. We |
6e0aac35bfa9
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
1689
diff
changeset
|
1743 // cannot do the obvious and set the active field of the SATB queue |
6e0aac35bfa9
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
1689
diff
changeset
|
1744 // when the thread is created given that, in some cases, safepoints |
6e0aac35bfa9
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
1689
diff
changeset
|
1745 // might happen between the JavaThread constructor being called and the |
6e0aac35bfa9
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
1689
diff
changeset
|
1746 // thread being added to the Java thread list (an example of this is |
6e0aac35bfa9
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
1689
diff
changeset
|
1747 // when the structure for the DestroyJavaVM thread is created). |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7179
diff
changeset
|
1748 #if INCLUDE_ALL_GCS |
1842
6e0aac35bfa9
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
1689
diff
changeset
|
1749 void initialize_queues(); |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7179
diff
changeset
|
1750 #else // INCLUDE_ALL_GCS |
1842
6e0aac35bfa9
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
1689
diff
changeset
|
1751 void initialize_queues() { } |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7179
diff
changeset
|
1752 #endif // INCLUDE_ALL_GCS |
1842
6e0aac35bfa9
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
1689
diff
changeset
|
1753 |
0 | 1754 // Machine dependent stuff |
1972 | 1755 #ifdef TARGET_OS_ARCH_linux_x86 |
1756 # include "thread_linux_x86.hpp" | |
1757 #endif | |
1758 #ifdef TARGET_OS_ARCH_linux_sparc | |
1759 # include "thread_linux_sparc.hpp" | |
1760 #endif | |
1761 #ifdef TARGET_OS_ARCH_linux_zero | |
1762 # include "thread_linux_zero.hpp" | |
1763 #endif | |
1764 #ifdef TARGET_OS_ARCH_solaris_x86 | |
1765 # include "thread_solaris_x86.hpp" | |
1766 #endif | |
1767 #ifdef TARGET_OS_ARCH_solaris_sparc | |
1768 # include "thread_solaris_sparc.hpp" | |
1769 #endif | |
1770 #ifdef TARGET_OS_ARCH_windows_x86 | |
1771 # include "thread_windows_x86.hpp" | |
1772 #endif | |
2192
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2126
diff
changeset
|
1773 #ifdef TARGET_OS_ARCH_linux_arm |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2126
diff
changeset
|
1774 # include "thread_linux_arm.hpp" |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2126
diff
changeset
|
1775 #endif |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2126
diff
changeset
|
1776 #ifdef TARGET_OS_ARCH_linux_ppc |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2126
diff
changeset
|
1777 # include "thread_linux_ppc.hpp" |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2126
diff
changeset
|
1778 #endif |
3960 | 1779 #ifdef TARGET_OS_ARCH_bsd_x86 |
1780 # include "thread_bsd_x86.hpp" | |
1781 #endif | |
1782 #ifdef TARGET_OS_ARCH_bsd_zero | |
1783 # include "thread_bsd_zero.hpp" | |
1784 #endif | |
1972 | 1785 |
0 | 1786 |
1787 public: | |
1788 void set_blocked_on_compilation(bool value) { | |
1789 _blocked_on_compilation = value; | |
1790 } | |
1791 | |
1792 bool blocked_on_compilation() { | |
1793 return _blocked_on_compilation; | |
1794 } | |
1795 protected: | |
1796 bool _blocked_on_compilation; | |
1797 | |
1798 | |
1799 // JSR166 per-thread parker | |
1800 private: | |
1801 Parker* _parker; | |
1802 public: | |
1803 Parker* parker() { return _parker; } | |
1804 | |
1805 // Biased locking support | |
1806 private: | |
1807 GrowableArray<MonitorInfo*>* _cached_monitor_info; | |
1808 public: | |
1809 GrowableArray<MonitorInfo*>* cached_monitor_info() { return _cached_monitor_info; } | |
1810 void set_cached_monitor_info(GrowableArray<MonitorInfo*>* info) { _cached_monitor_info = info; } | |
1811 | |
1812 // clearing/querying jni attach status | |
4006 | 1813 bool is_attaching_via_jni() const { return _jni_attach_state == _attaching_via_jni; } |
1814 bool has_attached_via_jni() const { return is_attaching_via_jni() || _jni_attach_state == _attached_via_jni; } | |
1815 void set_done_attaching_via_jni() { _jni_attach_state = _attached_via_jni; OrderAccess::fence(); } | |
342 | 1816 private: |
1817 // This field is used to determine if a thread has claimed | |
1818 // a par_id: it is -1 if the thread has not claimed a par_id; | |
1819 // otherwise its value is the par_id that has been claimed. | |
1820 int _claimed_par_id; | |
1821 public: | |
1822 int get_claimed_par_id() { return _claimed_par_id; } | |
1823 void set_claimed_par_id(int id) { _claimed_par_id = id;} | |
0 | 1824 }; |
1825 | |
1826 // Inline implementation of JavaThread::current | |
1827 inline JavaThread* JavaThread::current() { | |
1828 Thread* thread = ThreadLocalStorage::thread(); | |
1829 assert(thread != NULL && thread->is_Java_thread(), "just checking"); | |
1830 return (JavaThread*)thread; | |
1831 } | |
1832 | |
1833 inline CompilerThread* JavaThread::as_CompilerThread() { | |
1834 assert(is_Compiler_thread(), "just checking"); | |
1835 return (CompilerThread*)this; | |
1836 } | |
1837 | |
8710
9058789475af
7107135: Stack guard pages are no more protected after loading a shared library with executable stack
iklam
parents:
8001
diff
changeset
|
1838 inline bool JavaThread::stack_guard_zone_unused() { |
9058789475af
7107135: Stack guard pages are no more protected after loading a shared library with executable stack
iklam
parents:
8001
diff
changeset
|
1839 return _stack_guard_state == stack_guard_unused; |
9058789475af
7107135: Stack guard pages are no more protected after loading a shared library with executable stack
iklam
parents:
8001
diff
changeset
|
1840 } |
9058789475af
7107135: Stack guard pages are no more protected after loading a shared library with executable stack
iklam
parents:
8001
diff
changeset
|
1841 |
0 | 1842 inline bool JavaThread::stack_yellow_zone_disabled() { |
1843 return _stack_guard_state == stack_guard_yellow_disabled; | |
1844 } | |
1845 | |
1846 inline bool JavaThread::stack_yellow_zone_enabled() { | |
1847 #ifdef ASSERT | |
1848 if (os::uses_stack_guard_pages()) { | |
1849 assert(_stack_guard_state != stack_guard_unused, "guard pages must be in use"); | |
1850 } | |
1851 #endif | |
1852 return _stack_guard_state == stack_guard_enabled; | |
1853 } | |
1854 | |
1855 inline size_t JavaThread::stack_available(address cur_sp) { | |
1856 // This code assumes java stacks grow down | |
1857 address low_addr; // Limit on the address for deepest stack depth | |
1858 if ( _stack_guard_state == stack_guard_unused) { | |
1859 low_addr = stack_base() - stack_size(); | |
1860 } else { | |
1861 low_addr = stack_yellow_zone_base(); | |
1862 } | |
1863 return cur_sp > low_addr ? cur_sp - low_addr : 0; | |
1864 } | |
1865 | |
1866 // A thread used for Compilation. | |
1867 class CompilerThread : public JavaThread { | |
1868 friend class VMStructs; | |
1869 private: | |
1870 CompilerCounters* _counters; | |
1871 | |
12880
469216acdb28
8023014: CodeSweeperSweepNoFlushTest.java fails with HS crash
anoll
parents:
12876
diff
changeset
|
1872 ciEnv* _env; |
469216acdb28
8023014: CodeSweeperSweepNoFlushTest.java fails with HS crash
anoll
parents:
12876
diff
changeset
|
1873 CompileLog* _log; |
469216acdb28
8023014: CodeSweeperSweepNoFlushTest.java fails with HS crash
anoll
parents:
12876
diff
changeset
|
1874 CompileTask* _task; |
469216acdb28
8023014: CodeSweeperSweepNoFlushTest.java fails with HS crash
anoll
parents:
12876
diff
changeset
|
1875 CompileQueue* _queue; |
469216acdb28
8023014: CodeSweeperSweepNoFlushTest.java fails with HS crash
anoll
parents:
12876
diff
changeset
|
1876 BufferBlob* _buffer_blob; |
0 | 1877 |
12880
469216acdb28
8023014: CodeSweeperSweepNoFlushTest.java fails with HS crash
anoll
parents:
12876
diff
changeset
|
1878 nmethod* _scanned_nmethod; // nmethod being scanned by the sweeper |
469216acdb28
8023014: CodeSweeperSweepNoFlushTest.java fails with HS crash
anoll
parents:
12876
diff
changeset
|
1879 AbstractCompiler* _compiler; |
3384
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3336
diff
changeset
|
1880 |
0 | 1881 public: |
1882 | |
1883 static CompilerThread* current(); | |
1884 | |
1885 CompilerThread(CompileQueue* queue, CompilerCounters* counters); | |
1886 | |
1887 bool is_Compiler_thread() const { return true; } | |
15463
a20be10ad437
made Graal work with the HotSpot compiler queue and compiler threads, enabled by -XX:-UseGraalCompilationQueue
Doug Simon <doug.simon@oracle.com>
parents:
14909
diff
changeset
|
1888 |
a20be10ad437
made Graal work with the HotSpot compiler queue and compiler threads, enabled by -XX:-UseGraalCompilationQueue
Doug Simon <doug.simon@oracle.com>
parents:
14909
diff
changeset
|
1889 #ifdef COMPILERGRAAL |
a20be10ad437
made Graal work with the HotSpot compiler queue and compiler threads, enabled by -XX:-UseGraalCompilationQueue
Doug Simon <doug.simon@oracle.com>
parents:
14909
diff
changeset
|
1890 virtual bool can_call_java() const; |
16023
774349ad0b03
fixed hang in non-COMPILERGRAAL builds when -Xcomp is specified
Doug Simon <doug.simon@oracle.com>
parents:
16006
diff
changeset
|
1891 #else |
774349ad0b03
fixed hang in non-COMPILERGRAAL builds when -Xcomp is specified
Doug Simon <doug.simon@oracle.com>
parents:
16006
diff
changeset
|
1892 virtual bool can_call_java() const { return false; } |
15463
a20be10ad437
made Graal work with the HotSpot compiler queue and compiler threads, enabled by -XX:-UseGraalCompilationQueue
Doug Simon <doug.simon@oracle.com>
parents:
14909
diff
changeset
|
1893 #endif |
a20be10ad437
made Graal work with the HotSpot compiler queue and compiler threads, enabled by -XX:-UseGraalCompilationQueue
Doug Simon <doug.simon@oracle.com>
parents:
14909
diff
changeset
|
1894 |
0 | 1895 // Hide this compiler thread from external view. |
15463
a20be10ad437
made Graal work with the HotSpot compiler queue and compiler threads, enabled by -XX:-UseGraalCompilationQueue
Doug Simon <doug.simon@oracle.com>
parents:
14909
diff
changeset
|
1896 bool is_hidden_from_external_view() const { return !can_call_java(); } |
0 | 1897 |
12880
469216acdb28
8023014: CodeSweeperSweepNoFlushTest.java fails with HS crash
anoll
parents:
12876
diff
changeset
|
1898 void set_compiler(AbstractCompiler* c) { _compiler = c; } |
469216acdb28
8023014: CodeSweeperSweepNoFlushTest.java fails with HS crash
anoll
parents:
12876
diff
changeset
|
1899 AbstractCompiler* compiler() const { return _compiler; } |
469216acdb28
8023014: CodeSweeperSweepNoFlushTest.java fails with HS crash
anoll
parents:
12876
diff
changeset
|
1900 |
469216acdb28
8023014: CodeSweeperSweepNoFlushTest.java fails with HS crash
anoll
parents:
12876
diff
changeset
|
1901 CompileQueue* queue() const { return _queue; } |
469216acdb28
8023014: CodeSweeperSweepNoFlushTest.java fails with HS crash
anoll
parents:
12876
diff
changeset
|
1902 CompilerCounters* counters() const { return _counters; } |
0 | 1903 |
1904 // Get/set the thread's compilation environment. | |
1905 ciEnv* env() { return _env; } | |
1906 void set_env(ciEnv* env) { _env = env; } | |
1907 | |
12880
469216acdb28
8023014: CodeSweeperSweepNoFlushTest.java fails with HS crash
anoll
parents:
12876
diff
changeset
|
1908 BufferBlob* get_buffer_blob() const { return _buffer_blob; } |
1584 | 1909 void set_buffer_blob(BufferBlob* b) { _buffer_blob = b; }; |
1910 | |
0 | 1911 // Get/set the thread's logging information |
1912 CompileLog* log() { return _log; } | |
1913 void init_log(CompileLog* log) { | |
1914 // Set once, for good. | |
1915 assert(_log == NULL, "set only once"); | |
1916 _log = log; | |
1917 } | |
1918 | |
3384
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3336
diff
changeset
|
1919 // GC support |
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3336
diff
changeset
|
1920 // Apply "f->do_oop" to all root oops in "this". |
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3336
diff
changeset
|
1921 // Apply "cf->do_code_blob" (if !NULL) to all code blobs active in frames |
14909 | 1922 void oops_do(OopClosure* f, CLDToOopClosure* cld_f, CodeBlobClosure* cf); |
3384
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3336
diff
changeset
|
1923 |
0 | 1924 #ifndef PRODUCT |
1925 private: | |
1926 IdealGraphPrinter *_ideal_graph_printer; | |
1927 public: | |
1928 IdealGraphPrinter *ideal_graph_printer() { return _ideal_graph_printer; } | |
1929 void set_ideal_graph_printer(IdealGraphPrinter *n) { _ideal_graph_printer = n; } | |
1930 #endif | |
1931 | |
1932 // Get/set the thread's current task | |
1933 CompileTask* task() { return _task; } | |
1934 void set_task(CompileTask* task) { _task = task; } | |
3384
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3336
diff
changeset
|
1935 |
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3336
diff
changeset
|
1936 // Track the nmethod currently being scanned by the sweeper |
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3336
diff
changeset
|
1937 void set_scanned_nmethod(nmethod* nm) { |
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3336
diff
changeset
|
1938 assert(_scanned_nmethod == NULL || nm == NULL, "should reset to NULL before writing a new value"); |
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3336
diff
changeset
|
1939 _scanned_nmethod = nm; |
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3336
diff
changeset
|
1940 } |
0 | 1941 }; |
1942 | |
1943 inline CompilerThread* CompilerThread::current() { | |
1944 return JavaThread::current()->as_CompilerThread(); | |
1945 } | |
1946 | |
1947 | |
1948 // The active thread queue. It also keeps track of the current used | |
1949 // thread priorities. | |
1950 class Threads: AllStatic { | |
1951 friend class VMStructs; | |
1952 private: | |
1953 static JavaThread* _thread_list; | |
1954 static int _number_of_threads; | |
1955 static int _number_of_non_daemon_threads; | |
1956 static int _return_code; | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1957 #ifdef ASSERT |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1958 static bool _vm_complete; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1959 #endif |
0 | 1960 |
1961 public: | |
1962 // Thread management | |
1963 // force_daemon is a concession to JNI, where we may need to add a | |
1964 // thread to the thread list before allocating its thread object | |
1965 static void add(JavaThread* p, bool force_daemon = false); | |
1966 static void remove(JavaThread* p); | |
1967 static bool includes(JavaThread* p); | |
1968 static JavaThread* first() { return _thread_list; } | |
1969 static void threads_do(ThreadClosure* tc); | |
1970 | |
1971 // Initializes the vm and creates the vm thread | |
1972 static jint create_vm(JavaVMInitArgs* args, bool* canTryAgain); | |
1973 static void convert_vm_init_libraries_to_agents(); | |
1974 static void create_vm_init_libraries(); | |
1975 static void create_vm_init_agents(); | |
1976 static void shutdown_vm_agents(); | |
1977 static bool destroy_vm(); | |
1978 // Supported VM versions via JNI | |
1979 // Includes JNI_VERSION_1_1 | |
1980 static jboolean is_supported_jni_version_including_1_1(jint version); | |
1981 // Does not include JNI_VERSION_1_1 | |
1982 static jboolean is_supported_jni_version(jint version); | |
1983 | |
1984 // Garbage collection | |
1985 static void follow_other_roots(void f(oop*)); | |
1986 | |
1987 // Apply "f->do_oop" to all root oops in all threads. | |
1988 // This version may only be called by sequential code. | |
14909 | 1989 static void oops_do(OopClosure* f, CLDToOopClosure* cld_f, CodeBlobClosure* cf); |
0 | 1990 // This version may be called by sequential or parallel code. |
14909 | 1991 static void possibly_parallel_oops_do(OopClosure* f, CLDToOopClosure* cld_f, CodeBlobClosure* cf); |
0 | 1992 // This creates a list of GCTasks, one per thread. |
1993 static void create_thread_roots_tasks(GCTaskQueue* q); | |
1994 // This creates a list of GCTasks, one per thread, for marking objects. | |
1995 static void create_thread_roots_marking_tasks(GCTaskQueue* q); | |
1996 | |
1997 // Apply "f->do_oop" to roots in all threads that | |
1998 // are part of compiled frames | |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
844
diff
changeset
|
1999 static void compiled_frame_oops_do(OopClosure* f, CodeBlobClosure* cf); |
0 | 2000 |
2001 static void convert_hcode_pointers(); | |
2002 static void restore_hcode_pointers(); | |
2003 | |
2004 // Sweeper | |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
844
diff
changeset
|
2005 static void nmethods_do(CodeBlobClosure* cf); |
0 | 2006 |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
2007 // RedefineClasses support |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
2008 static void metadata_do(void f(Metadata*)); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
2009 |
0 | 2010 static void gc_epilogue(); |
2011 static void gc_prologue(); | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
2012 #ifdef ASSERT |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
2013 static bool is_vm_complete() { return _vm_complete; } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
2014 #endif |
0 | 2015 |
2016 // Verification | |
2017 static void verify(); | |
2018 static void print_on(outputStream* st, bool print_stacks, bool internal_format, bool print_concurrent_locks); | |
2019 static void print(bool print_stacks, bool internal_format) { | |
2020 // this function is only used by debug.cpp | |
2021 print_on(tty, print_stacks, internal_format, false /* no concurrent lock printed */); | |
2022 } | |
2023 static void print_on_error(outputStream* st, Thread* current, char* buf, int buflen); | |
2024 | |
2025 // Get Java threads that are waiting to enter a monitor. If doLock | |
2026 // is true, then Threads_lock is grabbed as needed. Otherwise, the | |
2027 // VM needs to be at a safepoint. | |
2028 static GrowableArray<JavaThread*>* get_pending_threads(int count, | |
2029 address monitor, bool doLock); | |
2030 | |
2031 // Get owning Java thread from the monitor's owner field. If doLock | |
2032 // is true, then Threads_lock is grabbed as needed. Otherwise, the | |
2033 // VM needs to be at a safepoint. | |
2034 static JavaThread *owning_thread_from_monitor_owner(address owner, | |
2035 bool doLock); | |
2036 | |
2037 // Number of threads on the active threads list | |
2038 static int number_of_threads() { return _number_of_threads; } | |
2039 // Number of non-daemon threads on the active threads list | |
2040 static int number_of_non_daemon_threads() { return _number_of_non_daemon_threads; } | |
2041 | |
2042 // Deoptimizes all frames tied to marked nmethods | |
2043 static void deoptimized_wrt_marked_nmethods(); | |
2044 | |
2045 }; | |
2046 | |
2047 | |
2048 // Thread iterator | |
2049 class ThreadClosure: public StackObj { | |
2050 public: | |
2051 virtual void do_thread(Thread* thread) = 0; | |
2052 }; | |
2053 | |
2054 class SignalHandlerMark: public StackObj { | |
2055 private: | |
2056 Thread* _thread; | |
2057 public: | |
2058 SignalHandlerMark(Thread* t) { | |
2059 _thread = t; | |
2060 if (_thread) _thread->enter_signal_handler(); | |
2061 } | |
2062 ~SignalHandlerMark() { | |
2063 if (_thread) _thread->leave_signal_handler(); | |
2064 _thread = NULL; | |
2065 } | |
2066 }; | |
2067 | |
1972 | 2068 |
2069 #endif // SHARE_VM_RUNTIME_THREAD_HPP |