author | goetz |
Wed, 03 Jan 2018 14:41:17 -0800 | |
changeset 48428 | e569e83139fd |
parent 48312 | 2a1413298af0 |
child 49006 | c6d1c4ad90f4 |
permissions | -rw-r--r-- |
1 | 1 |
/* |
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* Copyright (c) 1997, 2017, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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||
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#ifndef SHARE_VM_RUNTIME_THREAD_HPP |
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#define SHARE_VM_RUNTIME_THREAD_HPP |
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#include "jni.h" |
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#include "gc/shared/threadLocalAllocBuffer.hpp" |
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#include "memory/allocation.hpp" |
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#include "oops/oop.hpp" |
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#include "prims/jvmtiExport.hpp" |
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#include "runtime/frame.hpp" |
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#include "runtime/handshake.hpp" |
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#include "runtime/javaFrameAnchor.hpp" |
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#include "runtime/jniHandles.hpp" |
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#include "runtime/mutexLocker.hpp" |
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#include "runtime/os.hpp" |
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#include "runtime/osThread.hpp" |
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#include "runtime/park.hpp" |
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#include "runtime/safepoint.hpp" |
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#include "runtime/stubRoutines.hpp" |
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#include "runtime/threadLocalStorage.hpp" |
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#include "runtime/thread_ext.hpp" |
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#include "runtime/unhandledOops.hpp" |
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#include "trace/traceBackend.hpp" |
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#include "trace/traceMacros.hpp" |
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#include "utilities/align.hpp" |
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#include "utilities/exceptions.hpp" |
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#include "utilities/macros.hpp" |
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#if INCLUDE_ALL_GCS |
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#include "gc/g1/dirtyCardQueue.hpp" |
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#include "gc/g1/satbMarkQueue.hpp" |
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#endif // INCLUDE_ALL_GCS |
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#ifdef ZERO |
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# include "stack_zero.hpp" |
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#endif |
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class ThreadSafepointState; |
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class ThreadsList; |
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class ThreadsSMRSupport; |
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class NestedThreadsList; |
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class JvmtiThreadState; |
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class JvmtiGetLoadedClassesClosure; |
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class ThreadStatistics; |
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class ConcurrentLocksDump; |
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class ParkEvent; |
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class Parker; |
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class ciEnv; |
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class CompileThread; |
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class CompileLog; |
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class CompileTask; |
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class CompileQueue; |
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class CompilerCounters; |
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class vframeArray; |
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class DeoptResourceMark; |
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class jvmtiDeferredLocalVariableSet; |
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class GCTaskQueue; |
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class ThreadClosure; |
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class IdealGraphPrinter; |
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class Metadata; |
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template <class T, MEMFLAGS F> class ChunkedList; |
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typedef ChunkedList<Metadata*, mtInternal> MetadataOnStackBuffer; |
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DEBUG_ONLY(class ResourceMark;) |
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class WorkerThread; |
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// Class hierarchy |
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// - Thread |
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// - NamedThread |
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// - VMThread |
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// - ConcurrentGCThread |
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// - WorkerThread |
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// - GangWorker |
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// - GCTaskThread |
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// - JavaThread |
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// - various subclasses eg CompilerThread, ServiceThread |
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// - WatcherThread |
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class Thread: public ThreadShadow { |
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friend class VMStructs; |
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friend class JVMCIVMStructs; |
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private: |
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#ifndef USE_LIBRARY_BASED_TLS_ONLY |
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// Current thread is maintained as a thread-local variable |
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static THREAD_LOCAL_DECL Thread* _thr_current; |
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#endif |
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// Exception handling |
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// (Note: _pending_exception and friends are in ThreadShadow) |
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//oop _pending_exception; // pending exception for current thread |
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// const char* _exception_file; // file information for exception (debugging only) |
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// int _exception_line; // line information for exception (debugging only) |
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protected: |
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// Support for forcing alignment of thread objects for biased locking |
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void* _real_malloc_address; |
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// JavaThread lifecycle support: |
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friend class ScanHazardPtrGatherProtectedThreadsClosure; // for cmpxchg_threads_hazard_ptr(), get_threads_hazard_ptr(), is_hazard_ptr_tagged() access |
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friend class ScanHazardPtrGatherThreadsListClosure; // for get_nested_threads_hazard_ptr(), get_threads_hazard_ptr(), untag_hazard_ptr() access |
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friend class ScanHazardPtrPrintMatchingThreadsClosure; // for get_threads_hazard_ptr(), is_hazard_ptr_tagged() access |
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friend class ThreadsListSetter; // for get_threads_hazard_ptr() access |
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friend class ThreadsSMRSupport; // for get_threads_hazard_ptr() access |
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ThreadsList* volatile _threads_hazard_ptr; |
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ThreadsList* cmpxchg_threads_hazard_ptr(ThreadsList* exchange_value, ThreadsList* compare_value); |
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ThreadsList* get_threads_hazard_ptr(); |
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void set_threads_hazard_ptr(ThreadsList* new_list); |
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static bool is_hazard_ptr_tagged(ThreadsList* list) { |
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return (intptr_t(list) & intptr_t(1)) == intptr_t(1); |
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} |
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static ThreadsList* tag_hazard_ptr(ThreadsList* list) { |
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return (ThreadsList*)(intptr_t(list) | intptr_t(1)); |
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} |
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static ThreadsList* untag_hazard_ptr(ThreadsList* list) { |
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return (ThreadsList*)(intptr_t(list) & ~intptr_t(1)); |
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} |
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NestedThreadsList* _nested_threads_hazard_ptr; |
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NestedThreadsList* get_nested_threads_hazard_ptr() { |
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return _nested_threads_hazard_ptr; |
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} |
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void set_nested_threads_hazard_ptr(NestedThreadsList* value) { |
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assert(Threads_lock->owned_by_self(), |
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"must own Threads_lock for _nested_threads_hazard_ptr to be valid."); |
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_nested_threads_hazard_ptr = value; |
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} |
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// This field is enabled via -XX:+EnableThreadSMRStatistics: |
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uint _nested_threads_hazard_ptr_cnt; |
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void dec_nested_threads_hazard_ptr_cnt() { |
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assert(_nested_threads_hazard_ptr_cnt != 0, "mismatched {dec,inc}_nested_threads_hazard_ptr_cnt()"); |
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_nested_threads_hazard_ptr_cnt--; |
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} |
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void inc_nested_threads_hazard_ptr_cnt() { |
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_nested_threads_hazard_ptr_cnt++; |
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} |
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uint nested_threads_hazard_ptr_cnt() { |
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return _nested_threads_hazard_ptr_cnt; |
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} |
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166 |
|
1 | 167 |
public: |
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void* operator new(size_t size) throw() { return allocate(size, true); } |
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void* operator new(size_t size, const std::nothrow_t& nothrow_constant) throw() { |
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return allocate(size, false); } |
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void operator delete(void* p); |
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protected: |
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static void* allocate(size_t size, bool throw_excpt, MEMFLAGS flags = mtThread); |
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private: |
176 |
||
177 |
// *************************************************************** |
|
178 |
// Suspend and resume support |
|
179 |
// *************************************************************** |
|
180 |
// |
|
181 |
// VM suspend/resume no longer exists - it was once used for various |
|
182 |
// things including safepoints but was deprecated and finally removed |
|
183 |
// in Java 7. Because VM suspension was considered "internal" Java-level |
|
184 |
// suspension was considered "external", and this legacy naming scheme |
|
185 |
// remains. |
|
186 |
// |
|
187 |
// External suspend/resume requests come from JVM_SuspendThread, |
|
188 |
// JVM_ResumeThread, JVMTI SuspendThread, and finally JVMTI |
|
189 |
// ResumeThread. External |
|
190 |
// suspend requests cause _external_suspend to be set and external |
|
191 |
// resume requests cause _external_suspend to be cleared. |
|
192 |
// External suspend requests do not nest on top of other external |
|
193 |
// suspend requests. The higher level APIs reject suspend requests |
|
194 |
// for already suspended threads. |
|
195 |
// |
|
196 |
// The external_suspend |
|
197 |
// flag is checked by has_special_runtime_exit_condition() and java thread |
|
198 |
// will self-suspend when handle_special_runtime_exit_condition() is |
|
199 |
// called. Most uses of the _thread_blocked state in JavaThreads are |
|
200 |
// considered the same as being externally suspended; if the blocking |
|
201 |
// condition lifts, the JavaThread will self-suspend. Other places |
|
202 |
// where VM checks for external_suspend include: |
|
203 |
// + mutex granting (do not enter monitors when thread is suspended) |
|
204 |
// + state transitions from _thread_in_native |
|
205 |
// |
|
206 |
// In general, java_suspend() does not wait for an external suspend |
|
207 |
// request to complete. When it returns, the only guarantee is that |
|
208 |
// the _external_suspend field is true. |
|
209 |
// |
|
210 |
// wait_for_ext_suspend_completion() is used to wait for an external |
|
211 |
// suspend request to complete. External suspend requests are usually |
|
212 |
// followed by some other interface call that requires the thread to |
|
213 |
// be quiescent, e.g., GetCallTrace(). By moving the "wait time" into |
|
214 |
// the interface that requires quiescence, we give the JavaThread a |
|
215 |
// chance to self-suspend before we need it to be quiescent. This |
|
216 |
// improves overall suspend/query performance. |
|
217 |
// |
|
218 |
// _suspend_flags controls the behavior of java_ suspend/resume. |
|
219 |
// It must be set under the protection of SR_lock. Read from the flag is |
|
220 |
// OK without SR_lock as long as the value is only used as a hint. |
|
221 |
// (e.g., check _external_suspend first without lock and then recheck |
|
222 |
// inside SR_lock and finish the suspension) |
|
223 |
// |
|
224 |
// _suspend_flags is also overloaded for other "special conditions" so |
|
225 |
// that a single check indicates whether any special action is needed |
|
226 |
// eg. for async exceptions. |
|
227 |
// ------------------------------------------------------------------- |
|
228 |
// Notes: |
|
229 |
// 1. The suspend/resume logic no longer uses ThreadState in OSThread |
|
230 |
// but we still update its value to keep other part of the system (mainly |
|
231 |
// JVMTI) happy. ThreadState is legacy code (see notes in |
|
232 |
// osThread.hpp). |
|
233 |
// |
|
234 |
// 2. It would be more natural if set_external_suspend() is private and |
|
235 |
// part of java_suspend(), but that probably would affect the suspend/query |
|
236 |
// performance. Need more investigation on this. |
|
237 |
||
238 |
// suspend/resume lock: used for self-suspend |
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Monitor* _SR_lock; |
1 | 240 |
|
241 |
protected: |
|
242 |
enum SuspendFlags { |
|
243 |
// NOTE: avoid using the sign-bit as cc generates different test code |
|
244 |
// when the sign-bit is used, and sometimes incorrectly - see CR 6398077 |
|
245 |
||
246 |
_external_suspend = 0x20000000U, // thread is asked to self suspend |
|
247 |
_ext_suspended = 0x40000000U, // thread has self-suspended |
|
248 |
_deopt_suspend = 0x10000000U, // thread needs to self suspend for deopt |
|
249 |
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_has_async_exception = 0x00000001U, // there is a pending async exception |
46643 | 251 |
_critical_native_unlock = 0x00000002U, // Must call back to unlock JNI critical lock |
252 |
||
253 |
_trace_flag = 0x00000004U // call tracing backend |
|
1 | 254 |
}; |
255 |
||
256 |
// various suspension related flags - atomically updated |
|
257 |
// overloaded for async exception checking in check_special_condition_for_native_trans. |
|
258 |
volatile uint32_t _suspend_flags; |
|
259 |
||
260 |
private: |
|
261 |
int _num_nested_signal; |
|
262 |
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DEBUG_ONLY(bool _suspendible_thread;) |
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264 |
|
1 | 265 |
public: |
266 |
void enter_signal_handler() { _num_nested_signal++; } |
|
267 |
void leave_signal_handler() { _num_nested_signal--; } |
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bool is_inside_signal_handler() const { return _num_nested_signal > 0; } |
1 | 269 |
|
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#ifdef ASSERT |
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void set_suspendible_thread() { |
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_suspendible_thread = true; |
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} |
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274 |
|
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void clear_suspendible_thread() { |
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_suspendible_thread = false; |
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} |
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278 |
|
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bool is_suspendible_thread() { return _suspendible_thread; } |
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#endif |
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281 |
|
1 | 282 |
private: |
283 |
// Active_handles points to a block of handles |
|
284 |
JNIHandleBlock* _active_handles; |
|
285 |
||
286 |
// One-element thread local free list |
|
287 |
JNIHandleBlock* _free_handle_block; |
|
288 |
||
289 |
// Point to the last handle mark |
|
290 |
HandleMark* _last_handle_mark; |
|
291 |
||
292 |
// The parity of the last strong_roots iteration in which this thread was |
|
293 |
// claimed as a task. |
|
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int _oops_do_parity; |
1 | 295 |
|
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296 |
public: |
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297 |
void set_last_handle_mark(HandleMark* mark) { _last_handle_mark = mark; } |
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298 |
HandleMark* last_handle_mark() const { return _last_handle_mark; } |
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299 |
private: |
1 | 300 |
|
301 |
// debug support for checking if code does allow safepoints or not |
|
302 |
// GC points in the VM can happen because of allocation, invoking a VM operation, or blocking on |
|
303 |
// mutex, or blocking on an object synchronizer (Java locking). |
|
304 |
// If !allow_safepoint(), then an assertion failure will happen in any of the above cases |
|
305 |
// If !allow_allocation(), then an assertion failure will happen during allocation |
|
306 |
// (Hence, !allow_safepoint() => !allow_allocation()). |
|
307 |
// |
|
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// The two classes NoSafepointVerifier and No_Allocation_Verifier are used to set these counters. |
1 | 309 |
// |
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310 |
NOT_PRODUCT(int _allow_safepoint_count;) // If 0, thread allow a safepoint to happen |
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311 |
debug_only(int _allow_allocation_count;) // If 0, the thread is allowed to allocate oops. |
1 | 312 |
|
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313 |
// Used by SkipGCALot class. |
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314 |
NOT_PRODUCT(bool _skip_gcalot;) // Should we elide gc-a-lot? |
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315 |
|
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|
316 |
friend class NoAllocVerifier; |
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317 |
friend class NoSafepointVerifier; |
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|
318 |
friend class PauseNoSafepointVerifier; |
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|
319 |
friend class GCLocker; |
1 | 320 |
|
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|
321 |
volatile void* _polling_page; // Thread local polling page |
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|
322 |
|
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|
323 |
ThreadLocalAllocBuffer _tlab; // Thread-local eden |
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|
324 |
jlong _allocated_bytes; // Cumulative number of bytes allocated on |
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325 |
// the Java heap |
1 | 326 |
|
34666 | 327 |
mutable TRACE_DATA _trace_data; // Thread-local data for tracing |
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|
328 |
|
26834 | 329 |
ThreadExt _ext; |
330 |
||
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|
331 |
int _vm_operation_started_count; // VM_Operation support |
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|
332 |
int _vm_operation_completed_count; // VM_Operation support |
1 | 333 |
|
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|
334 |
ObjectMonitor* _current_pending_monitor; // ObjectMonitor this thread |
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|
335 |
// is waiting to lock |
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|
336 |
bool _current_pending_monitor_is_from_java; // locking is from Java code |
1 | 337 |
|
338 |
// ObjectMonitor on which this thread called Object.wait() |
|
339 |
ObjectMonitor* _current_waiting_monitor; |
|
340 |
||
341 |
// Private thread-local objectmonitor list - a simple cache organized as a SLL. |
|
342 |
public: |
|
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|
343 |
ObjectMonitor* omFreeList; |
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344 |
int omFreeCount; // length of omFreeList |
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|
345 |
int omFreeProvision; // reload chunk size |
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|
346 |
ObjectMonitor* omInUseList; // SLL to track monitors in circulation |
5710 | 347 |
int omInUseCount; // length of omInUseList |
1 | 348 |
|
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|
349 |
#ifdef ASSERT |
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|
350 |
private: |
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|
351 |
bool _visited_for_critical_count; |
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|
352 |
|
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|
353 |
public: |
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|
354 |
void set_visited_for_critical_count(bool z) { _visited_for_critical_count = z; } |
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|
355 |
bool was_visited_for_critical_count() const { return _visited_for_critical_count; } |
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|
356 |
#endif |
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|
357 |
|
1 | 358 |
public: |
359 |
enum { |
|
360 |
is_definitely_current_thread = true |
|
361 |
}; |
|
362 |
||
363 |
// Constructor |
|
364 |
Thread(); |
|
365 |
virtual ~Thread(); |
|
366 |
||
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367 |
// Manage Thread::current() |
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368 |
void initialize_thread_current(); |
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|
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void clear_thread_current(); // TLS cleanup needed before threads terminate |
1 | 370 |
|
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|
371 |
public: |
1 | 372 |
// thread entry point |
373 |
virtual void run(); |
|
374 |
||
375 |
// Testers |
|
376 |
virtual bool is_VM_thread() const { return false; } |
|
377 |
virtual bool is_Java_thread() const { return false; } |
|
378 |
virtual bool is_Compiler_thread() const { return false; } |
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|
379 |
virtual bool is_Code_cache_sweeper_thread() const { return false; } |
1 | 380 |
virtual bool is_hidden_from_external_view() const { return false; } |
381 |
virtual bool is_jvmti_agent_thread() const { return false; } |
|
382 |
// True iff the thread can perform GC operations at a safepoint. |
|
383 |
// Generally will be true only of VM thread and parallel GC WorkGang |
|
384 |
// threads. |
|
385 |
virtual bool is_GC_task_thread() const { return false; } |
|
386 |
virtual bool is_Watcher_thread() const { return false; } |
|
387 |
virtual bool is_ConcurrentGC_thread() const { return false; } |
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|
388 |
virtual bool is_Named_thread() const { return false; } |
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|
389 |
virtual bool is_Worker_thread() const { return false; } |
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|
390 |
|
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|
391 |
// Can this thread make Java upcalls |
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|
392 |
virtual bool can_call_java() const { return false; } |
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|
393 |
|
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|
394 |
// Casts |
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|
395 |
virtual WorkerThread* as_Worker_thread() const { return NULL; } |
1 | 396 |
|
397 |
virtual char* name() const { return (char*)"Unknown thread"; } |
|
398 |
||
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|
399 |
// Returns the current thread (ASSERTS if NULL) |
1 | 400 |
static inline Thread* current(); |
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|
401 |
// Returns the current thread, or NULL if not attached |
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|
402 |
static inline Thread* current_or_null(); |
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|
403 |
// Returns the current thread, or NULL if not attached, and is |
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|
404 |
// safe for use from signal-handlers |
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|
405 |
static inline Thread* current_or_null_safe(); |
1 | 406 |
|
407 |
// Common thread operations |
|
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|
408 |
#ifdef ASSERT |
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|
409 |
static void check_for_dangling_thread_pointer(Thread *thread); |
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|
410 |
#endif |
1 | 411 |
static void set_priority(Thread* thread, ThreadPriority priority); |
412 |
static ThreadPriority get_priority(const Thread* const thread); |
|
413 |
static void start(Thread* thread); |
|
414 |
static void interrupt(Thread* thr); |
|
415 |
static bool is_interrupted(Thread* thr, bool clear_interrupted); |
|
416 |
||
10739 | 417 |
void set_native_thread_name(const char *name) { |
418 |
assert(Thread::current() == this, "set_native_thread_name can only be called on the current thread"); |
|
419 |
os::set_native_thread_name(name); |
|
420 |
} |
|
421 |
||
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|
422 |
ObjectMonitor** omInUseList_addr() { return (ObjectMonitor **)&omInUseList; } |
1 | 423 |
Monitor* SR_lock() const { return _SR_lock; } |
424 |
||
425 |
bool has_async_exception() const { return (_suspend_flags & _has_async_exception) != 0; } |
|
426 |
||
25351
7c198a690050
8044775: Improve usage of umbrella header atomic.inline.hpp.
goetz
parents:
25064
diff
changeset
|
427 |
inline void set_suspend_flag(SuspendFlags f); |
7c198a690050
8044775: Improve usage of umbrella header atomic.inline.hpp.
goetz
parents:
25064
diff
changeset
|
428 |
inline void clear_suspend_flag(SuspendFlags f); |
1 | 429 |
|
25351
7c198a690050
8044775: Improve usage of umbrella header atomic.inline.hpp.
goetz
parents:
25064
diff
changeset
|
430 |
inline void set_has_async_exception(); |
7c198a690050
8044775: Improve usage of umbrella header atomic.inline.hpp.
goetz
parents:
25064
diff
changeset
|
431 |
inline void clear_has_async_exception(); |
1 | 432 |
|
11637
030466036615
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
11631
diff
changeset
|
433 |
bool do_critical_native_unlock() const { return (_suspend_flags & _critical_native_unlock) != 0; } |
030466036615
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
11631
diff
changeset
|
434 |
|
25351
7c198a690050
8044775: Improve usage of umbrella header atomic.inline.hpp.
goetz
parents:
25064
diff
changeset
|
435 |
inline void set_critical_native_unlock(); |
7c198a690050
8044775: Improve usage of umbrella header atomic.inline.hpp.
goetz
parents:
25064
diff
changeset
|
436 |
inline void clear_critical_native_unlock(); |
11637
030466036615
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
11631
diff
changeset
|
437 |
|
46643 | 438 |
inline void set_trace_flag(); |
439 |
inline void clear_trace_flag(); |
|
440 |
||
1 | 441 |
// Support for Unhandled Oop detection |
32575 | 442 |
// Add the field for both, fastdebug and debug, builds to keep |
443 |
// Thread's fields layout the same. |
|
444 |
// Note: CHECK_UNHANDLED_OOPS is defined only for fastdebug build. |
|
1 | 445 |
#ifdef CHECK_UNHANDLED_OOPS |
446 |
private: |
|
7724
a92d706dbdd5
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
7399
diff
changeset
|
447 |
UnhandledOops* _unhandled_oops; |
32575 | 448 |
#elif defined(ASSERT) |
449 |
private: |
|
450 |
void* _unhandled_oops; |
|
451 |
#endif |
|
452 |
#ifdef CHECK_UNHANDLED_OOPS |
|
1 | 453 |
public: |
7724
a92d706dbdd5
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
7399
diff
changeset
|
454 |
UnhandledOops* unhandled_oops() { return _unhandled_oops; } |
1 | 455 |
// Mark oop safe for gc. It may be stack allocated but won't move. |
7724
a92d706dbdd5
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
7399
diff
changeset
|
456 |
void allow_unhandled_oop(oop *op) { |
1 | 457 |
if (CheckUnhandledOops) unhandled_oops()->allow_unhandled_oop(op); |
458 |
} |
|
459 |
// Clear oops at safepoint so crashes point to unhandled oop violator |
|
7724
a92d706dbdd5
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
7399
diff
changeset
|
460 |
void clear_unhandled_oops() { |
1 | 461 |
if (CheckUnhandledOops) unhandled_oops()->clear_unhandled_oops(); |
462 |
} |
|
463 |
#endif // CHECK_UNHANDLED_OOPS |
|
464 |
||
32575 | 465 |
public: |
2995
d8283445992a
6820167: GCALotAtAllSafepoints + FullGCALot(ScavengeALot) options crash JVM
ysr
parents:
2526
diff
changeset
|
466 |
#ifndef PRODUCT |
d8283445992a
6820167: GCALotAtAllSafepoints + FullGCALot(ScavengeALot) options crash JVM
ysr
parents:
2526
diff
changeset
|
467 |
bool skip_gcalot() { return _skip_gcalot; } |
d8283445992a
6820167: GCALotAtAllSafepoints + FullGCALot(ScavengeALot) options crash JVM
ysr
parents:
2526
diff
changeset
|
468 |
void set_skip_gcalot(bool v) { _skip_gcalot = v; } |
d8283445992a
6820167: GCALotAtAllSafepoints + FullGCALot(ScavengeALot) options crash JVM
ysr
parents:
2526
diff
changeset
|
469 |
#endif |
d8283445992a
6820167: GCALotAtAllSafepoints + FullGCALot(ScavengeALot) options crash JVM
ysr
parents:
2526
diff
changeset
|
470 |
|
1 | 471 |
// Installs a pending exception to be inserted later |
472 |
static void send_async_exception(oop thread_oop, oop java_throwable); |
|
473 |
||
474 |
// Resource area |
|
475 |
ResourceArea* resource_area() const { return _resource_area; } |
|
476 |
void set_resource_area(ResourceArea* area) { _resource_area = area; } |
|
477 |
||
478 |
OSThread* osthread() const { return _osthread; } |
|
479 |
void set_osthread(OSThread* thread) { _osthread = thread; } |
|
480 |
||
481 |
// JNI handle support |
|
482 |
JNIHandleBlock* active_handles() const { return _active_handles; } |
|
483 |
void set_active_handles(JNIHandleBlock* block) { _active_handles = block; } |
|
484 |
JNIHandleBlock* free_handle_block() const { return _free_handle_block; } |
|
485 |
void set_free_handle_block(JNIHandleBlock* block) { _free_handle_block = block; } |
|
486 |
||
487 |
// Internal handle support |
|
488 |
HandleArea* handle_area() const { return _handle_area; } |
|
489 |
void set_handle_area(HandleArea* area) { _handle_area = area; } |
|
490 |
||
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
491 |
GrowableArray<Metadata*>* metadata_handles() const { return _metadata_handles; } |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
492 |
void set_metadata_handles(GrowableArray<Metadata*>* handles){ _metadata_handles = handles; } |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
493 |
|
1 | 494 |
// Thread-Local Allocation Buffer (TLAB) support |
495 |
ThreadLocalAllocBuffer& tlab() { return _tlab; } |
|
496 |
void initialize_tlab() { |
|
497 |
if (UseTLAB) { |
|
498 |
tlab().initialize(); |
|
499 |
} |
|
500 |
} |
|
501 |
||
7724
a92d706dbdd5
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
7399
diff
changeset
|
502 |
jlong allocated_bytes() { return _allocated_bytes; } |
a92d706dbdd5
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
7399
diff
changeset
|
503 |
void set_allocated_bytes(jlong value) { _allocated_bytes = value; } |
a92d706dbdd5
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
7399
diff
changeset
|
504 |
void incr_allocated_bytes(jlong size) { _allocated_bytes += size; } |
24351
61b33cc6d3cf
8042195: Introduce umbrella header orderAccess.inline.hpp.
goetz
parents:
23855
diff
changeset
|
505 |
inline jlong cooked_allocated_bytes(); |
7724
a92d706dbdd5
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
7399
diff
changeset
|
506 |
|
36384 | 507 |
TRACE_DEFINE_THREAD_TRACE_DATA_OFFSET; |
508 |
TRACE_DATA* trace_data() const { return &_trace_data; } |
|
46643 | 509 |
bool is_trace_suspend() { return (_suspend_flags & _trace_flag) != 0; } |
11480
1bf714e8adb4
7115199: Add event tracing hooks and Java Flight Recorder infrastructure
phh
parents:
10739
diff
changeset
|
510 |
|
26834 | 511 |
const ThreadExt& ext() const { return _ext; } |
512 |
ThreadExt& ext() { return _ext; } |
|
513 |
||
1 | 514 |
// VM operation support |
515 |
int vm_operation_ticket() { return ++_vm_operation_started_count; } |
|
516 |
int vm_operation_completed_count() { return _vm_operation_completed_count; } |
|
517 |
void increment_vm_operation_completed_count() { _vm_operation_completed_count++; } |
|
518 |
||
519 |
// For tracking the heavyweight monitor the thread is pending on. |
|
520 |
ObjectMonitor* current_pending_monitor() { |
|
521 |
return _current_pending_monitor; |
|
522 |
} |
|
523 |
void set_current_pending_monitor(ObjectMonitor* monitor) { |
|
524 |
_current_pending_monitor = monitor; |
|
525 |
} |
|
526 |
void set_current_pending_monitor_is_from_java(bool from_java) { |
|
527 |
_current_pending_monitor_is_from_java = from_java; |
|
528 |
} |
|
529 |
bool current_pending_monitor_is_from_java() { |
|
530 |
return _current_pending_monitor_is_from_java; |
|
531 |
} |
|
532 |
||
533 |
// For tracking the ObjectMonitor on which this thread called Object.wait() |
|
534 |
ObjectMonitor* current_waiting_monitor() { |
|
535 |
return _current_waiting_monitor; |
|
536 |
} |
|
537 |
void set_current_waiting_monitor(ObjectMonitor* monitor) { |
|
538 |
_current_waiting_monitor = monitor; |
|
539 |
} |
|
540 |
||
541 |
// GC support |
|
542 |
// Apply "f->do_oop" to all root oops in "this". |
|
14582
490bb6c0df7c
8003720: NPG: Method in interpreter stack frame can be deallocated
stefank
parents:
14390
diff
changeset
|
543 |
// Used by JavaThread::oops_do. |
3908
24b55ad4c228
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
3261
diff
changeset
|
544 |
// Apply "cf->do_code_blob" (if !NULL) to all code blobs active in frames |
38074
8475fdc6dcc3
8154580: Save mirror in interpreter frame to enable cleanups of CLDClosure
coleenp
parents:
37474
diff
changeset
|
545 |
virtual void oops_do(OopClosure* f, CodeBlobClosure* cf); |
1 | 546 |
|
547 |
// Handles the parallel case for the method below. |
|
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
548 |
private: |
1 | 549 |
bool claim_oops_do_par_case(int collection_parity); |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
550 |
public: |
25492
d27050bdfb04
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
25491
diff
changeset
|
551 |
// Requires that "collection_parity" is that of the current roots |
1 | 552 |
// iteration. If "is_par" is false, sets the parity of "this" to |
553 |
// "collection_parity", and returns "true". If "is_par" is true, |
|
554 |
// uses an atomic instruction to set the current threads parity to |
|
555 |
// "collection_parity", if it is not already. Returns "true" iff the |
|
556 |
// calling thread does the update, this indicates that the calling thread |
|
557 |
// has claimed the thread's stack as a root groop in the current |
|
558 |
// collection. |
|
559 |
bool claim_oops_do(bool is_par, int collection_parity) { |
|
560 |
if (!is_par) { |
|
561 |
_oops_do_parity = collection_parity; |
|
562 |
return true; |
|
563 |
} else { |
|
564 |
return claim_oops_do_par_case(collection_parity); |
|
565 |
} |
|
566 |
} |
|
567 |
||
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
568 |
// jvmtiRedefineClasses support |
29576
c223b0a9872e
8061205: MetadataOnStackMark only needs to walk code cache during class redefinition
coleenp
parents:
29362
diff
changeset
|
569 |
void metadata_handles_do(void f(Metadata*)); |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
570 |
|
2526
39a58a50be35
6699669: Hotspot server leaves synchronized block with monitor in bad state
xlu
parents:
2135
diff
changeset
|
571 |
// Used by fast lock support |
1 | 572 |
virtual bool is_lock_owned(address adr) const; |
573 |
||
574 |
// Check if address is in the stack of the thread (not just for locks). |
|
2526
39a58a50be35
6699669: Hotspot server leaves synchronized block with monitor in bad state
xlu
parents:
2135
diff
changeset
|
575 |
// Warning: the method can only be used on the running thread |
1 | 576 |
bool is_in_stack(address adr) const; |
18938
ff8f8cec9434
8016131: nsk/sysdict/vm/stress/chain tests crash the VM in 'entry_frame_is_first()'
rbackman
parents:
18928
diff
changeset
|
577 |
// Check if address is in the usable part of the stack (excludes protected |
ff8f8cec9434
8016131: nsk/sysdict/vm/stress/chain tests crash the VM in 'entry_frame_is_first()'
rbackman
parents:
18928
diff
changeset
|
578 |
// guard pages) |
ff8f8cec9434
8016131: nsk/sysdict/vm/stress/chain tests crash the VM in 'entry_frame_is_first()'
rbackman
parents:
18928
diff
changeset
|
579 |
bool is_in_usable_stack(address adr) const; |
1 | 580 |
|
581 |
// Sets this thread as starting thread. Returns failure if thread |
|
582 |
// creation fails due to lack of memory, too many threads etc. |
|
583 |
bool set_as_starting_thread(); |
|
584 |
||
27247
99db666dbe8e
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
26834
diff
changeset
|
585 |
protected: |
1 | 586 |
// OS data associated with the thread |
587 |
OSThread* _osthread; // Platform-specific thread information |
|
588 |
||
589 |
// Thread local resource area for temporary allocation within the VM |
|
590 |
ResourceArea* _resource_area; |
|
591 |
||
18928
ac0163dd0a50
7143807: ResourceMark nesting problem in stringStream
fparain
parents:
18025
diff
changeset
|
592 |
DEBUG_ONLY(ResourceMark* _current_resource_mark;) |
ac0163dd0a50
7143807: ResourceMark nesting problem in stringStream
fparain
parents:
18025
diff
changeset
|
593 |
|
1 | 594 |
// Thread local handle area for allocation of handles within the VM |
595 |
HandleArea* _handle_area; |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
596 |
GrowableArray<Metadata*>* _metadata_handles; |
1 | 597 |
|
598 |
// Support for stack overflow handling, get_thread, etc. |
|
599 |
address _stack_base; |
|
600 |
size_t _stack_size; |
|
601 |
uintptr_t _self_raw_id; // used by get_thread (mutable) |
|
602 |
int _lgrp_id; |
|
603 |
||
47881
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
604 |
volatile void** polling_page_addr() { return &_polling_page; } |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
605 |
|
1 | 606 |
public: |
607 |
// Stack overflow support |
|
608 |
address stack_base() const { assert(_stack_base != NULL,"Sanity check"); return _stack_base; } |
|
609 |
void set_stack_base(address base) { _stack_base = base; } |
|
610 |
size_t stack_size() const { return _stack_size; } |
|
611 |
void set_stack_size(size_t size) { _stack_size = size; } |
|
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
612 |
address stack_end() const { return stack_base() - stack_size(); } |
1 | 613 |
void record_stack_base_and_size(); |
614 |
||
6183
4c74cfe14f20
6975078: assert(allocated_on_res_area() || allocated_on_C_heap() || allocated_on_arena()
kvn
parents:
5920
diff
changeset
|
615 |
bool on_local_stack(address adr) const { |
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
616 |
// QQQ this has knowledge of direction, ought to be a stack method |
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
617 |
return (_stack_base >= adr && adr >= stack_end()); |
6183
4c74cfe14f20
6975078: assert(allocated_on_res_area() || allocated_on_C_heap() || allocated_on_arena()
kvn
parents:
5920
diff
changeset
|
618 |
} |
4c74cfe14f20
6975078: assert(allocated_on_res_area() || allocated_on_C_heap() || allocated_on_arena()
kvn
parents:
5920
diff
changeset
|
619 |
|
7724
a92d706dbdd5
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
7399
diff
changeset
|
620 |
uintptr_t self_raw_id() { return _self_raw_id; } |
a92d706dbdd5
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
7399
diff
changeset
|
621 |
void set_self_raw_id(uintptr_t value) { _self_raw_id = value; } |
a92d706dbdd5
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
7399
diff
changeset
|
622 |
|
a92d706dbdd5
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
7399
diff
changeset
|
623 |
int lgrp_id() const { return _lgrp_id; } |
a92d706dbdd5
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
7399
diff
changeset
|
624 |
void set_lgrp_id(int value) { _lgrp_id = value; } |
1 | 625 |
|
626 |
// Printing |
|
24331
c0bc7e5653fb
6885993: Named Thread: introduce print() and print_on(outputStream* st) methods
zgu
parents:
23855
diff
changeset
|
627 |
virtual void print_on(outputStream* st) const; |
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
628 |
virtual void print_nested_threads_hazard_ptrs_on(outputStream* st) const; |
1 | 629 |
void print() const { print_on(tty); } |
630 |
virtual void print_on_error(outputStream* st, char* buf, int buflen) const; |
|
46742 | 631 |
void print_value_on(outputStream* st) const; |
1 | 632 |
|
633 |
// Debug-only code |
|
634 |
#ifdef ASSERT |
|
635 |
private: |
|
636 |
// Deadlock detection support for Mutex locks. List of locks own by thread. |
|
7724
a92d706dbdd5
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
7399
diff
changeset
|
637 |
Monitor* _owned_locks; |
1 | 638 |
// Mutex::set_owner_implementation is the only place where _owned_locks is modified, |
639 |
// thus the friendship |
|
640 |
friend class Mutex; |
|
641 |
friend class Monitor; |
|
642 |
||
643 |
public: |
|
644 |
void print_owned_locks_on(outputStream* st) const; |
|
645 |
void print_owned_locks() const { print_owned_locks_on(tty); } |
|
7724
a92d706dbdd5
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
7399
diff
changeset
|
646 |
Monitor* owned_locks() const { return _owned_locks; } |
1 | 647 |
bool owns_locks() const { return owned_locks() != NULL; } |
648 |
bool owns_locks_but_compiled_lock() const; |
|
29802
d485440c958a
8076225: Move the thread claim parity from SharedHeap to Thread
mgerdin
parents:
29576
diff
changeset
|
649 |
int oops_do_parity() const { return _oops_do_parity; } |
1 | 650 |
|
651 |
// Deadlock detection |
|
652 |
bool allow_allocation() { return _allow_allocation_count == 0; } |
|
18928
ac0163dd0a50
7143807: ResourceMark nesting problem in stringStream
fparain
parents:
18025
diff
changeset
|
653 |
ResourceMark* current_resource_mark() { return _current_resource_mark; } |
ac0163dd0a50
7143807: ResourceMark nesting problem in stringStream
fparain
parents:
18025
diff
changeset
|
654 |
void set_current_resource_mark(ResourceMark* rm) { _current_resource_mark = rm; } |
1 | 655 |
#endif |
656 |
||
657 |
void check_for_valid_safepoint_state(bool potential_vm_operation) PRODUCT_RETURN; |
|
658 |
||
659 |
private: |
|
660 |
volatile int _jvmti_env_iteration_count; |
|
661 |
||
662 |
public: |
|
663 |
void entering_jvmti_env_iteration() { ++_jvmti_env_iteration_count; } |
|
664 |
void leaving_jvmti_env_iteration() { --_jvmti_env_iteration_count; } |
|
665 |
bool is_inside_jvmti_env_iteration() { return _jvmti_env_iteration_count > 0; } |
|
666 |
||
667 |
// Code generation |
|
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
668 |
static ByteSize exception_file_offset() { return byte_offset_of(Thread, _exception_file); } |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
669 |
static ByteSize exception_line_offset() { return byte_offset_of(Thread, _exception_line); } |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
670 |
static ByteSize active_handles_offset() { return byte_offset_of(Thread, _active_handles); } |
1 | 671 |
|
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
672 |
static ByteSize stack_base_offset() { return byte_offset_of(Thread, _stack_base); } |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
673 |
static ByteSize stack_size_offset() { return byte_offset_of(Thread, _stack_size); } |
1 | 674 |
|
47881
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
675 |
static ByteSize polling_page_offset() { return byte_offset_of(Thread, _polling_page); } |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
676 |
|
1 | 677 |
#define TLAB_FIELD_OFFSET(name) \ |
7724
a92d706dbdd5
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
7399
diff
changeset
|
678 |
static ByteSize tlab_##name##_offset() { return byte_offset_of(Thread, _tlab) + ThreadLocalAllocBuffer::name##_offset(); } |
1 | 679 |
|
680 |
TLAB_FIELD_OFFSET(start) |
|
681 |
TLAB_FIELD_OFFSET(end) |
|
682 |
TLAB_FIELD_OFFSET(top) |
|
683 |
TLAB_FIELD_OFFSET(pf_top) |
|
684 |
TLAB_FIELD_OFFSET(size) // desired_size |
|
685 |
TLAB_FIELD_OFFSET(refill_waste_limit) |
|
686 |
TLAB_FIELD_OFFSET(number_of_refills) |
|
687 |
TLAB_FIELD_OFFSET(fast_refill_waste) |
|
688 |
TLAB_FIELD_OFFSET(slow_allocations) |
|
689 |
||
690 |
#undef TLAB_FIELD_OFFSET |
|
691 |
||
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
692 |
static ByteSize allocated_bytes_offset() { return byte_offset_of(Thread, _allocated_bytes); } |
7724
a92d706dbdd5
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
7399
diff
changeset
|
693 |
|
1 | 694 |
public: |
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
695 |
volatile intptr_t _Stalled; |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
696 |
volatile int _TypeTag; |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
697 |
ParkEvent * _ParkEvent; // for synchronized() |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
698 |
ParkEvent * _SleepEvent; // for Thread.sleep |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
699 |
ParkEvent * _MutexEvent; // for native internal Mutex/Monitor |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
700 |
ParkEvent * _MuxEvent; // for low-level muxAcquire-muxRelease |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
701 |
int NativeSyncRecursion; // diagnostic |
1 | 702 |
|
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
703 |
volatile int _OnTrap; // Resume-at IP delta |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
704 |
jint _hashStateW; // Marsaglia Shift-XOR thread-local RNG |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
705 |
jint _hashStateX; // thread-specific hashCode generator state |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
706 |
jint _hashStateY; |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
707 |
jint _hashStateZ; |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
708 |
void * _schedctl; |
1 | 709 |
|
710 |
||
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
711 |
volatile jint rng[4]; // RNG for spin loop |
1 | 712 |
|
713 |
// Low-level leaf-lock primitives used to implement synchronization |
|
714 |
// and native monitor-mutex infrastructure. |
|
715 |
// Not for general synchronization use. |
|
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
716 |
static void SpinAcquire(volatile int * Lock, const char * Name); |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
717 |
static void SpinRelease(volatile int * Lock); |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
718 |
static void muxAcquire(volatile intptr_t * Lock, const char * Name); |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
719 |
static void muxAcquireW(volatile intptr_t * Lock, ParkEvent * ev); |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
720 |
static void muxRelease(volatile intptr_t * Lock); |
1 | 721 |
}; |
722 |
||
723 |
// Inline implementation of Thread::current() |
|
34633
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
33792
diff
changeset
|
724 |
inline Thread* Thread::current() { |
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
33792
diff
changeset
|
725 |
Thread* current = current_or_null(); |
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
33792
diff
changeset
|
726 |
assert(current != NULL, "Thread::current() called on detached thread"); |
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
33792
diff
changeset
|
727 |
return current; |
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
33792
diff
changeset
|
728 |
} |
1 | 729 |
|
34633
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
33792
diff
changeset
|
730 |
inline Thread* Thread::current_or_null() { |
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
33792
diff
changeset
|
731 |
#ifndef USE_LIBRARY_BASED_TLS_ONLY |
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
33792
diff
changeset
|
732 |
return _thr_current; |
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
33792
diff
changeset
|
733 |
#else |
46688
d33b4d593f9b
8184339: Thread::current_or_null() shall not assert if Posix TLS is not yet initialized
stuefe
parents:
46644
diff
changeset
|
734 |
if (ThreadLocalStorage::is_initialized()) { |
d33b4d593f9b
8184339: Thread::current_or_null() shall not assert if Posix TLS is not yet initialized
stuefe
parents:
46644
diff
changeset
|
735 |
return ThreadLocalStorage::thread(); |
d33b4d593f9b
8184339: Thread::current_or_null() shall not assert if Posix TLS is not yet initialized
stuefe
parents:
46644
diff
changeset
|
736 |
} |
d33b4d593f9b
8184339: Thread::current_or_null() shall not assert if Posix TLS is not yet initialized
stuefe
parents:
46644
diff
changeset
|
737 |
return NULL; |
1 | 738 |
#endif |
34633
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
33792
diff
changeset
|
739 |
} |
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
33792
diff
changeset
|
740 |
|
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
33792
diff
changeset
|
741 |
inline Thread* Thread::current_or_null_safe() { |
46688
d33b4d593f9b
8184339: Thread::current_or_null() shall not assert if Posix TLS is not yet initialized
stuefe
parents:
46644
diff
changeset
|
742 |
if (ThreadLocalStorage::is_initialized()) { |
d33b4d593f9b
8184339: Thread::current_or_null() shall not assert if Posix TLS is not yet initialized
stuefe
parents:
46644
diff
changeset
|
743 |
return ThreadLocalStorage::thread(); |
d33b4d593f9b
8184339: Thread::current_or_null() shall not assert if Posix TLS is not yet initialized
stuefe
parents:
46644
diff
changeset
|
744 |
} |
d33b4d593f9b
8184339: Thread::current_or_null() shall not assert if Posix TLS is not yet initialized
stuefe
parents:
46644
diff
changeset
|
745 |
return NULL; |
1 | 746 |
} |
747 |
||
748 |
// Name support for threads. non-JavaThread subclasses with multiple |
|
749 |
// uniquely named instances should derive from this. |
|
750 |
class NamedThread: public Thread { |
|
751 |
friend class VMStructs; |
|
752 |
enum { |
|
753 |
max_name_len = 64 |
|
754 |
}; |
|
755 |
private: |
|
756 |
char* _name; |
|
4489
514173c9a0c2
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
4030
diff
changeset
|
757 |
// log JavaThread being processed by oops_do |
514173c9a0c2
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
4030
diff
changeset
|
758 |
JavaThread* _processed_thread; |
33107
77bf0d2069a3
8134953: Make the GC ID available in a central place
brutisso
parents:
32575
diff
changeset
|
759 |
uint _gc_id; // The current GC id when a thread takes part in GC |
4489
514173c9a0c2
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
4030
diff
changeset
|
760 |
|
1 | 761 |
public: |
762 |
NamedThread(); |
|
763 |
~NamedThread(); |
|
764 |
// May only be called once per thread. |
|
24424
2658d7834c6e
8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents:
24352
diff
changeset
|
765 |
void set_name(const char* format, ...) ATTRIBUTE_PRINTF(2, 3); |
29326 | 766 |
void initialize_named_thread(); |
4489
514173c9a0c2
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
4030
diff
changeset
|
767 |
virtual bool is_Named_thread() const { return true; } |
1 | 768 |
virtual char* name() const { return _name == NULL ? (char*)"Unknown Thread" : _name; } |
4489
514173c9a0c2
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
4030
diff
changeset
|
769 |
JavaThread *processed_thread() { return _processed_thread; } |
514173c9a0c2
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
4030
diff
changeset
|
770 |
void set_processed_thread(JavaThread *thread) { _processed_thread = thread; } |
24331
c0bc7e5653fb
6885993: Named Thread: introduce print() and print_on(outputStream* st) methods
zgu
parents:
23855
diff
changeset
|
771 |
virtual void print_on(outputStream* st) const; |
33107
77bf0d2069a3
8134953: Make the GC ID available in a central place
brutisso
parents:
32575
diff
changeset
|
772 |
|
77bf0d2069a3
8134953: Make the GC ID available in a central place
brutisso
parents:
32575
diff
changeset
|
773 |
void set_gc_id(uint gc_id) { _gc_id = gc_id; } |
77bf0d2069a3
8134953: Make the GC ID available in a central place
brutisso
parents:
32575
diff
changeset
|
774 |
uint gc_id() { return _gc_id; } |
1 | 775 |
}; |
776 |
||
777 |
// Worker threads are named and have an id of an assigned work. |
|
778 |
class WorkerThread: public NamedThread { |
|
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
779 |
private: |
1 | 780 |
uint _id; |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
781 |
public: |
7399
4ecd771fa2d1
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
7397
diff
changeset
|
782 |
WorkerThread() : _id(0) { } |
4ecd771fa2d1
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
7397
diff
changeset
|
783 |
virtual bool is_Worker_thread() const { return true; } |
4ecd771fa2d1
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
7397
diff
changeset
|
784 |
|
4ecd771fa2d1
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
7397
diff
changeset
|
785 |
virtual WorkerThread* as_Worker_thread() const { |
4ecd771fa2d1
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
7397
diff
changeset
|
786 |
assert(is_Worker_thread(), "Dubious cast to WorkerThread*?"); |
4ecd771fa2d1
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
7397
diff
changeset
|
787 |
return (WorkerThread*) this; |
4ecd771fa2d1
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
7397
diff
changeset
|
788 |
} |
4ecd771fa2d1
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
7397
diff
changeset
|
789 |
|
4ecd771fa2d1
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
7397
diff
changeset
|
790 |
void set_id(uint work_id) { _id = work_id; } |
4ecd771fa2d1
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
7397
diff
changeset
|
791 |
uint id() const { return _id; } |
1 | 792 |
}; |
793 |
||
794 |
// A single WatcherThread is used for simulating timer interrupts. |
|
795 |
class WatcherThread: public Thread { |
|
796 |
friend class VMStructs; |
|
797 |
public: |
|
798 |
virtual void run(); |
|
799 |
||
800 |
private: |
|
801 |
static WatcherThread* _watcher_thread; |
|
802 |
||
14390
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14083
diff
changeset
|
803 |
static bool _startable; |
29321 | 804 |
// volatile due to at least one lock-free read |
805 |
volatile static bool _should_terminate; |
|
1 | 806 |
public: |
807 |
enum SomeConstants { |
|
808 |
delay_interval = 10 // interrupt delay in milliseconds |
|
809 |
}; |
|
810 |
||
811 |
// Constructor |
|
812 |
WatcherThread(); |
|
813 |
||
38290
6b194cfc1557
8154715: Missing destructor and/or TLS clearing calls for terminating threads
dholmes
parents:
38144
diff
changeset
|
814 |
// No destruction allowed |
6b194cfc1557
8154715: Missing destructor and/or TLS clearing calls for terminating threads
dholmes
parents:
38144
diff
changeset
|
815 |
~WatcherThread() { |
6b194cfc1557
8154715: Missing destructor and/or TLS clearing calls for terminating threads
dholmes
parents:
38144
diff
changeset
|
816 |
guarantee(false, "WatcherThread deletion must fix the race with VM termination"); |
6b194cfc1557
8154715: Missing destructor and/or TLS clearing calls for terminating threads
dholmes
parents:
38144
diff
changeset
|
817 |
} |
6b194cfc1557
8154715: Missing destructor and/or TLS clearing calls for terminating threads
dholmes
parents:
38144
diff
changeset
|
818 |
|
1 | 819 |
// Tester |
820 |
bool is_Watcher_thread() const { return true; } |
|
821 |
||
822 |
// Printing |
|
823 |
char* name() const { return (char*)"VM Periodic Task Thread"; } |
|
824 |
void print_on(outputStream* st) const; |
|
14390
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14083
diff
changeset
|
825 |
void unpark(); |
1 | 826 |
|
827 |
// Returns the single instance of WatcherThread |
|
828 |
static WatcherThread* watcher_thread() { return _watcher_thread; } |
|
829 |
||
830 |
// Create and start the single instance of WatcherThread, or stop it on shutdown |
|
831 |
static void start(); |
|
832 |
static void stop(); |
|
14390
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14083
diff
changeset
|
833 |
// Only allow start once the VM is sufficiently initialized |
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14083
diff
changeset
|
834 |
// Otherwise the first task to enroll will trigger the start |
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14083
diff
changeset
|
835 |
static void make_startable(); |
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14083
diff
changeset
|
836 |
private: |
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14083
diff
changeset
|
837 |
int sleep() const; |
1 | 838 |
}; |
839 |
||
840 |
||
841 |
class CompilerThread; |
|
842 |
||
843 |
typedef void (*ThreadFunction)(JavaThread*, TRAPS); |
|
844 |
||
845 |
class JavaThread: public Thread { |
|
846 |
friend class VMStructs; |
|
35123
b0b89d83bcf5
8134994: use separate VMStructs databases for SA and JVMCI
twisti
parents:
33792
diff
changeset
|
847 |
friend class JVMCIVMStructs; |
27917
c5937f7b4e8b
8064669: compiler/whitebox/AllocationCodeBlobTest.java crashes / asserts
iignatyev
parents:
27651
diff
changeset
|
848 |
friend class WhiteBox; |
1 | 849 |
private: |
850 |
JavaThread* _next; // The next thread in the Threads list |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
851 |
bool _on_thread_list; // Is set when this JavaThread is added to the Threads list |
1 | 852 |
oop _threadObj; // The Java level thread object |
853 |
||
854 |
#ifdef ASSERT |
|
855 |
private: |
|
856 |
int _java_call_counter; |
|
857 |
||
858 |
public: |
|
859 |
int java_call_counter() { return _java_call_counter; } |
|
860 |
void inc_java_call_counter() { _java_call_counter++; } |
|
861 |
void dec_java_call_counter() { |
|
862 |
assert(_java_call_counter > 0, "Invalid nesting of JavaCallWrapper"); |
|
863 |
_java_call_counter--; |
|
864 |
} |
|
865 |
private: // restore original namespace restriction |
|
866 |
#endif // ifdef ASSERT |
|
867 |
||
868 |
#ifndef PRODUCT |
|
869 |
public: |
|
870 |
enum { |
|
871 |
jump_ring_buffer_size = 16 |
|
872 |
}; |
|
873 |
private: // restore original namespace restriction |
|
874 |
#endif |
|
875 |
||
876 |
JavaFrameAnchor _anchor; // Encapsulation of current java frame and it state |
|
877 |
||
878 |
ThreadFunction _entry_point; |
|
879 |
||
880 |
JNIEnv _jni_environment; |
|
881 |
||
882 |
// Deopt support |
|
883 |
DeoptResourceMark* _deopt_mark; // Holds special ResourceMark for deoptimization |
|
884 |
||
885 |
intptr_t* _must_deopt_id; // id of frame that needs to be deopted once we |
|
886 |
// transition out of native |
|
38133
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
37474
diff
changeset
|
887 |
CompiledMethod* _deopt_nmethod; // CompiledMethod that is currently being deoptimized |
1 | 888 |
vframeArray* _vframe_array_head; // Holds the heap of the active vframeArrays |
889 |
vframeArray* _vframe_array_last; // Holds last vFrameArray we popped |
|
890 |
// Because deoptimization is lazy we must save jvmti requests to set locals |
|
891 |
// in compiled frames until we deoptimize and we have an interpreter frame. |
|
892 |
// This holds the pointer to array (yeah like there might be more than one) of |
|
893 |
// description of compiled vframes that have locals that need to be updated. |
|
894 |
GrowableArray<jvmtiDeferredLocalVariableSet*>* _deferred_locals_updates; |
|
895 |
||
896 |
// Handshake value for fixing 6243940. We need a place for the i2c |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
897 |
// adapter to store the callee Method*. This value is NEVER live |
1 | 898 |
// across a gc point so it does NOT have to be gc'd |
899 |
// The handshake is open ended since we can't be certain that it will |
|
900 |
// be NULLed. This is because we rarely ever see the race and end up |
|
901 |
// in handle_wrong_method which is the backend of the handshake. See |
|
902 |
// code in i2c adapters and handle_wrong_method. |
|
903 |
||
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
904 |
Method* _callee_target; |
1 | 905 |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
906 |
// Used to pass back results to the interpreter or generated code running Java code. |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
907 |
oop _vm_result; // oop result is GC-preserved |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
908 |
Metadata* _vm_result_2; // non-oop result |
4030
4c471254865e
6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning
ysr
parents:
3916
diff
changeset
|
909 |
|
4c471254865e
6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning
ysr
parents:
3916
diff
changeset
|
910 |
// See ReduceInitialCardMarks: this holds the precise space interval of |
4c471254865e
6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning
ysr
parents:
3916
diff
changeset
|
911 |
// the most recent slow path allocation for which compiled code has |
4c471254865e
6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning
ysr
parents:
3916
diff
changeset
|
912 |
// elided card-marks for performance along the fast-path. |
4c471254865e
6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning
ysr
parents:
3916
diff
changeset
|
913 |
MemRegion _deferred_card_mark; |
1 | 914 |
|
915 |
MonitorChunk* _monitor_chunks; // Contains the off stack monitors |
|
916 |
// allocated during deoptimization |
|
917 |
// and by JNI_MonitorEnter/Exit |
|
918 |
||
919 |
// Async. requests support |
|
920 |
enum AsyncRequests { |
|
921 |
_no_async_condition = 0, |
|
922 |
_async_exception, |
|
923 |
_async_unsafe_access_error |
|
924 |
}; |
|
925 |
AsyncRequests _special_runtime_exit_condition; // Enum indicating pending async. request |
|
926 |
oop _pending_async_exception; |
|
927 |
||
928 |
// Safepoint support |
|
929 |
public: // Expose _thread_state for SafeFetchInt() |
|
930 |
volatile JavaThreadState _thread_state; |
|
931 |
private: |
|
932 |
ThreadSafepointState *_safepoint_state; // Holds information about a thread during a safepoint |
|
933 |
address _saved_exception_pc; // Saved pc of instruction where last implicit exception happened |
|
934 |
||
935 |
// JavaThread termination support |
|
936 |
enum TerminatedTypes { |
|
937 |
_not_terminated = 0xDEAD - 2, |
|
938 |
_thread_exiting, // JavaThread::exit() has been called for this thread |
|
939 |
_thread_terminated, // JavaThread is removed from thread list |
|
940 |
_vm_exited // JavaThread is still executing native code, but VM is terminated |
|
941 |
// only VM_Exit can set _vm_exited |
|
942 |
}; |
|
943 |
||
944 |
// In general a JavaThread's _terminated field transitions as follows: |
|
945 |
// |
|
946 |
// _not_terminated => _thread_exiting => _thread_terminated |
|
947 |
// |
|
948 |
// _vm_exited is a special value to cover the case of a JavaThread |
|
949 |
// executing native code after the VM itself is terminated. |
|
7897
201a8b00ec91
6814943: getcpool001 catches more than one JvmtiThreadState problem
kamg
parents:
7724
diff
changeset
|
950 |
volatile TerminatedTypes _terminated; |
1 | 951 |
// suspend/resume support |
952 |
volatile bool _suspend_equivalent; // Suspend equivalent condition |
|
953 |
jint _in_deopt_handler; // count of deoptimization |
|
954 |
// handlers thread is in |
|
955 |
volatile bool _doing_unsafe_access; // Thread may fault due to unsafe access |
|
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
956 |
bool _do_not_unlock_if_synchronized; // Do not unlock the receiver of a synchronized method (since it was |
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
957 |
// never locked) when throwing an exception. Used by interpreter only. |
1 | 958 |
|
10739 | 959 |
// JNI attach states: |
960 |
enum JNIAttachStates { |
|
961 |
_not_attaching_via_jni = 1, // thread is not attaching via JNI |
|
962 |
_attaching_via_jni, // thread is attaching via JNI |
|
963 |
_attached_via_jni // thread has attached via JNI |
|
964 |
}; |
|
965 |
||
966 |
// A regular JavaThread's _jni_attach_state is _not_attaching_via_jni. |
|
967 |
// A native thread that is attaching via JNI starts with a value |
|
968 |
// of _attaching_via_jni and transitions to _attached_via_jni. |
|
969 |
volatile JNIAttachStates _jni_attach_state; |
|
1 | 970 |
|
971 |
public: |
|
972 |
// State of the stack guard pages for this thread. |
|
973 |
enum StackGuardState { |
|
974 |
stack_guard_unused, // not needed |
|
35071
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34666
diff
changeset
|
975 |
stack_guard_reserved_disabled, |
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
976 |
stack_guard_yellow_reserved_disabled,// disabled (temporarily) after stack overflow |
1 | 977 |
stack_guard_enabled // enabled |
978 |
}; |
|
979 |
||
980 |
private: |
|
981 |
||
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
982 |
#if INCLUDE_JVMCI |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
983 |
// The _pending_* fields below are used to communicate extra information |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
984 |
// from an uncommon trap in JVMCI compiled code to the uncommon trap handler. |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
985 |
|
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
986 |
// Communicates the DeoptReason and DeoptAction of the uncommon trap |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
987 |
int _pending_deoptimization; |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
988 |
|
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
989 |
// Specifies whether the uncommon trap is to bci 0 of a synchronized method |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
990 |
// before the monitor has been acquired. |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
991 |
bool _pending_monitorenter; |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
992 |
|
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
993 |
// Specifies if the DeoptReason for the last uncommon trap was Reason_transfer_to_interpreter |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
994 |
bool _pending_transfer_to_interpreter; |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
995 |
|
38666
5ff19807abd5
8152311: [JVMCI] allow JVMCI compiler to change the compilation policy for a method
dnsimon
parents:
38144
diff
changeset
|
996 |
// Guard for re-entrant call to JVMCIRuntime::adjust_comp_level |
5ff19807abd5
8152311: [JVMCI] allow JVMCI compiler to change the compilation policy for a method
dnsimon
parents:
38144
diff
changeset
|
997 |
bool _adjusting_comp_level; |
5ff19807abd5
8152311: [JVMCI] allow JVMCI compiler to change the compilation policy for a method
dnsimon
parents:
38144
diff
changeset
|
998 |
|
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
999 |
// An object that JVMCI compiled code can use to further describe and |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1000 |
// uniquely identify the speculative optimization guarded by the uncommon trap |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1001 |
oop _pending_failed_speculation; |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1002 |
|
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1003 |
// These fields are mutually exclusive in terms of live ranges. |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1004 |
union { |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1005 |
// Communicates the pc at which the most recent implicit exception occurred |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1006 |
// from the signal handler to a deoptimization stub. |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1007 |
address _implicit_exception_pc; |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1008 |
|
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1009 |
// Communicates an alternative call target to an i2c stub from a JavaCall . |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1010 |
address _alternate_call_target; |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1011 |
} _jvmci; |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1012 |
|
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1013 |
// Support for high precision, thread sensitive counters in JVMCI compiled code. |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1014 |
jlong* _jvmci_counters; |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1015 |
|
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1016 |
public: |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1017 |
static jlong* _jvmci_old_thread_counters; |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1018 |
static void collect_counters(typeArrayOop array); |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1019 |
private: |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1020 |
#endif // INCLUDE_JVMCI |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1021 |
|
22810
3a4dae5224c7
8017313: PPC64 (part 6): stack handling improvements
goetz
parents:
18025
diff
changeset
|
1022 |
StackGuardState _stack_guard_state; |
3a4dae5224c7
8017313: PPC64 (part 6): stack handling improvements
goetz
parents:
18025
diff
changeset
|
1023 |
|
3a4dae5224c7
8017313: PPC64 (part 6): stack handling improvements
goetz
parents:
18025
diff
changeset
|
1024 |
// Precompute the limit of the stack as used in stack overflow checks. |
3a4dae5224c7
8017313: PPC64 (part 6): stack handling improvements
goetz
parents:
18025
diff
changeset
|
1025 |
// We load it from here to simplify the stack overflow check in assembly. |
3a4dae5224c7
8017313: PPC64 (part 6): stack handling improvements
goetz
parents:
18025
diff
changeset
|
1026 |
address _stack_overflow_limit; |
35071
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34666
diff
changeset
|
1027 |
address _reserved_stack_activation; |
1 | 1028 |
|
1029 |
// Compiler exception handling (NOTE: The _exception_oop is *NOT* the same as _pending_exception. It is |
|
1030 |
// used to temp. parsing values into and out of the runtime system during exception handling for compiled |
|
1031 |
// code) |
|
1032 |
volatile oop _exception_oop; // Exception thrown in compiled code |
|
1033 |
volatile address _exception_pc; // PC where exception happened |
|
1034 |
volatile address _exception_handler_pc; // PC for handler of exception |
|
5252
58f23871a5b6
6941529: SharedRuntime::raw_exception_handler_for_return_address must reset thread MethodHandle flag
twisti
parents:
4761
diff
changeset
|
1035 |
volatile int _is_method_handle_return; // true (== 1) if the current exception PC is a MethodHandle call site. |
1 | 1036 |
|
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1037 |
private: |
1 | 1038 |
// support for JNI critical regions |
1039 |
jint _jni_active_critical; // count of entries into JNI critical region |
|
1040 |
||
25058
4542f853c2ac
8043224: -Xcheck:jni improvements to exception checking and excessive local refs
dsimms
parents:
24424
diff
changeset
|
1041 |
// Checked JNI: function name requires exception check |
4542f853c2ac
8043224: -Xcheck:jni improvements to exception checking and excessive local refs
dsimms
parents:
24424
diff
changeset
|
1042 |
char* _pending_jni_exception_check_fn; |
4542f853c2ac
8043224: -Xcheck:jni improvements to exception checking and excessive local refs
dsimms
parents:
24424
diff
changeset
|
1043 |
|
1 | 1044 |
// For deadlock detection. |
1045 |
int _depth_first_number; |
|
1046 |
||
1047 |
// JVMTI PopFrame support |
|
1048 |
// This is set to popframe_pending to signal that top Java frame should be popped immediately |
|
1049 |
int _popframe_condition; |
|
1050 |
||
28039
bf5a8340bf8a
6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents:
27917
diff
changeset
|
1051 |
// If reallocation of scalar replaced objects fails, we throw OOM |
bf5a8340bf8a
6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents:
27917
diff
changeset
|
1052 |
// and during exception propagation, pop the top |
bf5a8340bf8a
6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents:
27917
diff
changeset
|
1053 |
// _frames_to_pop_failed_realloc frames, the ones that reference |
bf5a8340bf8a
6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents:
27917
diff
changeset
|
1054 |
// failed reallocations. |
bf5a8340bf8a
6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents:
27917
diff
changeset
|
1055 |
int _frames_to_pop_failed_realloc; |
bf5a8340bf8a
6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents:
27917
diff
changeset
|
1056 |
|
1 | 1057 |
#ifndef PRODUCT |
1058 |
int _jmp_ring_index; |
|
1059 |
struct { |
|
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1060 |
// We use intptr_t instead of address so debugger doesn't try and display strings |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1061 |
intptr_t _target; |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1062 |
intptr_t _instruction; |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1063 |
const char* _file; |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1064 |
int _line; |
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
1065 |
} _jmp_ring[jump_ring_buffer_size]; |
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1066 |
#endif // PRODUCT |
1 | 1067 |
|
15482
470d0b0c09f1
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
14582
diff
changeset
|
1068 |
#if INCLUDE_ALL_GCS |
1374 | 1069 |
// Support for G1 barriers |
1070 |
||
33792 | 1071 |
SATBMarkQueue _satb_mark_queue; // Thread-local log for SATB barrier. |
1374 | 1072 |
// Set of all such queues. |
1073 |
static SATBMarkQueueSet _satb_mark_queue_set; |
|
1074 |
||
1075 |
DirtyCardQueue _dirty_card_queue; // Thread-local log for dirty cards. |
|
1076 |
// Set of all such queues. |
|
1077 |
static DirtyCardQueueSet _dirty_card_queue_set; |
|
1560
1b328492b7f8
6770608: G1: Mutator thread can flush barrier and satb queues during safepoint
iveresov
parents:
1374
diff
changeset
|
1078 |
|
1b328492b7f8
6770608: G1: Mutator thread can flush barrier and satb queues during safepoint
iveresov
parents:
1374
diff
changeset
|
1079 |
void flush_barrier_queues(); |
15482
470d0b0c09f1
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
14582
diff
changeset
|
1080 |
#endif // INCLUDE_ALL_GCS |
1374 | 1081 |
|
1 | 1082 |
friend class VMThread; |
1083 |
friend class ThreadWaitTransition; |
|
1084 |
friend class VM_Exit; |
|
1085 |
||
1086 |
void initialize(); // Initialized the instance variables |
|
1087 |
||
1088 |
public: |
|
1089 |
// Constructor |
|
10739 | 1090 |
JavaThread(bool is_attaching_via_jni = false); // for main thread and JNI attached threads |
1 | 1091 |
JavaThread(ThreadFunction entry_point, size_t stack_size = 0); |
1092 |
~JavaThread(); |
|
1093 |
||
1094 |
#ifdef ASSERT |
|
1095 |
// verify this JavaThread hasn't be published in the Threads::list yet |
|
1096 |
void verify_not_published(); |
|
1097 |
#endif |
|
1098 |
||
1099 |
//JNI functiontable getter/setter for JVMTI jni function table interception API. |
|
1100 |
void set_jni_functions(struct JNINativeInterface_* functionTable) { |
|
1101 |
_jni_environment.functions = functionTable; |
|
1102 |
} |
|
1103 |
struct JNINativeInterface_* get_jni_functions() { |
|
1104 |
return (struct JNINativeInterface_ *)_jni_environment.functions; |
|
1105 |
} |
|
1106 |
||
6176
4d9030fe341f
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
5920
diff
changeset
|
1107 |
// This function is called at thread creation to allow |
4d9030fe341f
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
5920
diff
changeset
|
1108 |
// platform specific thread variables to be initialized. |
4d9030fe341f
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
5920
diff
changeset
|
1109 |
void cache_global_variables(); |
4d9030fe341f
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
5920
diff
changeset
|
1110 |
|
1 | 1111 |
// Executes Shutdown.shutdown() |
1112 |
void invoke_shutdown_hooks(); |
|
1113 |
||
1114 |
// Cleanup on thread exit |
|
1115 |
enum ExitType { |
|
1116 |
normal_exit, |
|
1117 |
jni_detach |
|
1118 |
}; |
|
1119 |
void exit(bool destroy_vm, ExitType exit_type = normal_exit); |
|
1120 |
||
1121 |
void cleanup_failed_attach_current_thread(); |
|
1122 |
||
1123 |
// Testers |
|
1124 |
virtual bool is_Java_thread() const { return true; } |
|
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1125 |
virtual bool can_call_java() const { return true; } |
1 | 1126 |
|
1127 |
// Thread chain operations |
|
1128 |
JavaThread* next() const { return _next; } |
|
1129 |
void set_next(JavaThread* p) { _next = p; } |
|
1130 |
||
1131 |
// Thread oop. threadObj() can be NULL for initial JavaThread |
|
1132 |
// (or for threads attached via JNI) |
|
1133 |
oop threadObj() const { return _threadObj; } |
|
1134 |
void set_threadObj(oop p) { _threadObj = p; } |
|
1135 |
||
1136 |
ThreadPriority java_priority() const; // Read from threadObj() |
|
1137 |
||
1138 |
// Prepare thread and add to priority queue. If a priority is |
|
1139 |
// not specified, use the priority of the thread object. Threads_lock |
|
1140 |
// must be held while this function is called. |
|
1141 |
void prepare(jobject jni_thread, ThreadPriority prio=NoPriority); |
|
26834 | 1142 |
void prepare_ext(); |
1 | 1143 |
|
1144 |
void set_saved_exception_pc(address pc) { _saved_exception_pc = pc; } |
|
1145 |
address saved_exception_pc() { return _saved_exception_pc; } |
|
1146 |
||
1147 |
||
1148 |
ThreadFunction entry_point() const { return _entry_point; } |
|
1149 |
||
1150 |
// Allocates a new Java level thread object for this thread. thread_name may be NULL. |
|
27917
c5937f7b4e8b
8064669: compiler/whitebox/AllocationCodeBlobTest.java crashes / asserts
iignatyev
parents:
27651
diff
changeset
|
1151 |
void allocate_threadObj(Handle thread_group, const char* thread_name, bool daemon, TRAPS); |
1 | 1152 |
|
1153 |
// Last frame anchor routines |
|
1154 |
||
22870
f939d9a0440d
8032634: Add #ifdef PPC64 around OrderAccess operations on _thread_state.
goetz
parents:
22859
diff
changeset
|
1155 |
JavaFrameAnchor* frame_anchor(void) { return &_anchor; } |
1 | 1156 |
|
1157 |
// last_Java_sp |
|
22870
f939d9a0440d
8032634: Add #ifdef PPC64 around OrderAccess operations on _thread_state.
goetz
parents:
22859
diff
changeset
|
1158 |
bool has_last_Java_frame() const { return _anchor.has_last_Java_frame(); } |
f939d9a0440d
8032634: Add #ifdef PPC64 around OrderAccess operations on _thread_state.
goetz
parents:
22859
diff
changeset
|
1159 |
intptr_t* last_Java_sp() const { return _anchor.last_Java_sp(); } |
1 | 1160 |
|
1161 |
// last_Java_pc |
|
1162 |
||
22870
f939d9a0440d
8032634: Add #ifdef PPC64 around OrderAccess operations on _thread_state.
goetz
parents:
22859
diff
changeset
|
1163 |
address last_Java_pc(void) { return _anchor.last_Java_pc(); } |
1 | 1164 |
|
1165 |
// Safepoint support |
|
29186
d5e61d9743aa
8069593: Changes to JavaThread::_thread_state must use acquire and release
aph
parents:
29185
diff
changeset
|
1166 |
#if !(defined(PPC64) || defined(AARCH64)) |
22870
f939d9a0440d
8032634: Add #ifdef PPC64 around OrderAccess operations on _thread_state.
goetz
parents:
22859
diff
changeset
|
1167 |
JavaThreadState thread_state() const { return _thread_state; } |
f939d9a0440d
8032634: Add #ifdef PPC64 around OrderAccess operations on _thread_state.
goetz
parents:
22859
diff
changeset
|
1168 |
void set_thread_state(JavaThreadState s) { _thread_state = s; } |
f939d9a0440d
8032634: Add #ifdef PPC64 around OrderAccess operations on _thread_state.
goetz
parents:
22859
diff
changeset
|
1169 |
#else |
22859
7b88983393b7
8029396: PPC64 (part 212): Several memory ordering fixes in C-code.
goetz
parents:
22838
diff
changeset
|
1170 |
// Use membars when accessing volatile _thread_state. See |
7b88983393b7
8029396: PPC64 (part 212): Several memory ordering fixes in C-code.
goetz
parents:
22838
diff
changeset
|
1171 |
// Threads::create_vm() for size checks. |
24351
61b33cc6d3cf
8042195: Introduce umbrella header orderAccess.inline.hpp.
goetz
parents:
23855
diff
changeset
|
1172 |
inline JavaThreadState thread_state() const; |
61b33cc6d3cf
8042195: Introduce umbrella header orderAccess.inline.hpp.
goetz
parents:
23855
diff
changeset
|
1173 |
inline void set_thread_state(JavaThreadState s); |
22870
f939d9a0440d
8032634: Add #ifdef PPC64 around OrderAccess operations on _thread_state.
goetz
parents:
22859
diff
changeset
|
1174 |
#endif |
f939d9a0440d
8032634: Add #ifdef PPC64 around OrderAccess operations on _thread_state.
goetz
parents:
22859
diff
changeset
|
1175 |
ThreadSafepointState *safepoint_state() const { return _safepoint_state; } |
1 | 1176 |
void set_safepoint_state(ThreadSafepointState *state) { _safepoint_state = state; } |
1177 |
bool is_at_poll_safepoint() { return _safepoint_state->is_at_poll_safepoint(); } |
|
1178 |
||
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
1179 |
// JavaThread termination and lifecycle support: |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
1180 |
void smr_delete(); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
1181 |
bool on_thread_list() const { return _on_thread_list; } |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
1182 |
void set_on_thread_list() { _on_thread_list = true; } |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
1183 |
|
1 | 1184 |
// thread has called JavaThread::exit() or is terminated |
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
1185 |
bool is_exiting() const; |
1 | 1186 |
// thread is terminated (no longer on the threads list); we compare |
1187 |
// against the two non-terminated values so that a freed JavaThread |
|
1188 |
// will also be considered terminated. |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
1189 |
bool check_is_terminated(TerminatedTypes l_terminated) const { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
1190 |
return l_terminated != _not_terminated && l_terminated != _thread_exiting; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
1191 |
} |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
1192 |
bool is_terminated() const; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
1193 |
void set_terminated(TerminatedTypes t); |
1 | 1194 |
// special for Threads::remove() which is static: |
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
1195 |
void set_terminated_value(); |
1 | 1196 |
void block_if_vm_exited(); |
1197 |
||
1198 |
bool doing_unsafe_access() { return _doing_unsafe_access; } |
|
1199 |
void set_doing_unsafe_access(bool val) { _doing_unsafe_access = val; } |
|
1200 |
||
1201 |
bool do_not_unlock_if_synchronized() { return _do_not_unlock_if_synchronized; } |
|
1202 |
void set_do_not_unlock_if_synchronized(bool val) { _do_not_unlock_if_synchronized = val; } |
|
1203 |
||
47881
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1204 |
inline void set_polling_page(void* poll_value); |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1205 |
inline volatile void* get_polling_page(); |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1206 |
|
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1207 |
private: |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1208 |
// Support for thread handshake operations |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1209 |
HandshakeState _handshake; |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1210 |
public: |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1211 |
void set_handshake_operation(HandshakeOperation* op) { |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1212 |
_handshake.set_operation(this, op); |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1213 |
} |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1214 |
|
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1215 |
bool has_handshake() const { |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1216 |
return _handshake.has_operation(); |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1217 |
} |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1218 |
|
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1219 |
void cancel_handshake() { |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1220 |
_handshake.cancel(this); |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1221 |
} |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1222 |
|
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1223 |
void handshake_process_by_self() { |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1224 |
_handshake.process_by_self(this); |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1225 |
} |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1226 |
|
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1227 |
void handshake_process_by_vmthread() { |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1228 |
_handshake.process_by_vmthread(this); |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1229 |
} |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1230 |
|
1 | 1231 |
// Suspend/resume support for JavaThread |
1232 |
private: |
|
25351
7c198a690050
8044775: Improve usage of umbrella header atomic.inline.hpp.
goetz
parents:
25064
diff
changeset
|
1233 |
inline void set_ext_suspended(); |
7c198a690050
8044775: Improve usage of umbrella header atomic.inline.hpp.
goetz
parents:
25064
diff
changeset
|
1234 |
inline void clear_ext_suspended(); |
1 | 1235 |
|
1236 |
public: |
|
1237 |
void java_suspend(); |
|
1238 |
void java_resume(); |
|
1239 |
int java_suspend_self(); |
|
1240 |
||
1241 |
void check_and_wait_while_suspended() { |
|
1242 |
assert(JavaThread::current() == this, "sanity check"); |
|
1243 |
||
1244 |
bool do_self_suspend; |
|
1245 |
do { |
|
1246 |
// were we externally suspended while we were waiting? |
|
1247 |
do_self_suspend = handle_special_suspend_equivalent_condition(); |
|
1248 |
if (do_self_suspend) { |
|
1249 |
// don't surprise the thread that suspended us by returning |
|
1250 |
java_suspend_self(); |
|
1251 |
set_suspend_equivalent(); |
|
1252 |
} |
|
1253 |
} while (do_self_suspend); |
|
1254 |
} |
|
1255 |
static void check_safepoint_and_suspend_for_native_trans(JavaThread *thread); |
|
1256 |
// Check for async exception in addition to safepoint and suspend request. |
|
1257 |
static void check_special_condition_for_native_trans(JavaThread *thread); |
|
1258 |
||
11637
030466036615
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
11631
diff
changeset
|
1259 |
// Same as check_special_condition_for_native_trans but finishes the |
030466036615
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
11631
diff
changeset
|
1260 |
// transition into thread_in_Java mode so that it can potentially |
030466036615
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
11631
diff
changeset
|
1261 |
// block. |
030466036615
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
11631
diff
changeset
|
1262 |
static void check_special_condition_for_native_trans_and_transition(JavaThread *thread); |
030466036615
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
11631
diff
changeset
|
1263 |
|
1 | 1264 |
bool is_ext_suspend_completed(bool called_by_wait, int delay, uint32_t *bits); |
1265 |
bool is_ext_suspend_completed_with_lock(uint32_t *bits) { |
|
1266 |
MutexLockerEx ml(SR_lock(), Mutex::_no_safepoint_check_flag); |
|
1267 |
// Warning: is_ext_suspend_completed() may temporarily drop the |
|
1268 |
// SR_lock to allow the thread to reach a stable thread state if |
|
1269 |
// it is currently in a transient thread state. |
|
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1270 |
return is_ext_suspend_completed(false /* !called_by_wait */, |
1 | 1271 |
SuspendRetryDelay, bits); |
1272 |
} |
|
1273 |
||
1274 |
// We cannot allow wait_for_ext_suspend_completion() to run forever or |
|
1275 |
// we could hang. SuspendRetryCount and SuspendRetryDelay are normally |
|
1276 |
// passed as the count and delay parameters. Experiments with specific |
|
1277 |
// calls to wait_for_ext_suspend_completion() can be done by passing |
|
1278 |
// other values in the code. Experiments with all calls can be done |
|
1279 |
// via the appropriate -XX options. |
|
1280 |
bool wait_for_ext_suspend_completion(int count, int delay, uint32_t *bits); |
|
1281 |
||
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
1282 |
// test for suspend - most (all?) of these should go away |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
1283 |
bool is_thread_fully_suspended(bool wait_for_suspend, uint32_t *bits); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
1284 |
|
25351
7c198a690050
8044775: Improve usage of umbrella header atomic.inline.hpp.
goetz
parents:
25064
diff
changeset
|
1285 |
inline void set_external_suspend(); |
7c198a690050
8044775: Improve usage of umbrella header atomic.inline.hpp.
goetz
parents:
25064
diff
changeset
|
1286 |
inline void clear_external_suspend(); |
1 | 1287 |
|
25351
7c198a690050
8044775: Improve usage of umbrella header atomic.inline.hpp.
goetz
parents:
25064
diff
changeset
|
1288 |
inline void set_deopt_suspend(); |
7c198a690050
8044775: Improve usage of umbrella header atomic.inline.hpp.
goetz
parents:
25064
diff
changeset
|
1289 |
inline void clear_deopt_suspend(); |
1 | 1290 |
bool is_deopt_suspend() { return (_suspend_flags & _deopt_suspend) != 0; } |
1291 |
||
1292 |
bool is_external_suspend() const { |
|
1293 |
return (_suspend_flags & _external_suspend) != 0; |
|
1294 |
} |
|
1295 |
// Whenever a thread transitions from native to vm/java it must suspend |
|
1296 |
// if external|deopt suspend is present. |
|
1297 |
bool is_suspend_after_native() const { |
|
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1298 |
return (_suspend_flags & (_external_suspend | _deopt_suspend)) != 0; |
1 | 1299 |
} |
1300 |
||
1301 |
// external suspend request is completed |
|
1302 |
bool is_ext_suspended() const { |
|
1303 |
return (_suspend_flags & _ext_suspended) != 0; |
|
1304 |
} |
|
1305 |
||
1306 |
bool is_external_suspend_with_lock() const { |
|
1307 |
MutexLockerEx ml(SR_lock(), Mutex::_no_safepoint_check_flag); |
|
1308 |
return is_external_suspend(); |
|
1309 |
} |
|
1310 |
||
1311 |
// Special method to handle a pending external suspend request |
|
1312 |
// when a suspend equivalent condition lifts. |
|
1313 |
bool handle_special_suspend_equivalent_condition() { |
|
1314 |
assert(is_suspend_equivalent(), |
|
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1315 |
"should only be called in a suspend equivalence condition"); |
1 | 1316 |
MutexLockerEx ml(SR_lock(), Mutex::_no_safepoint_check_flag); |
1317 |
bool ret = is_external_suspend(); |
|
1318 |
if (!ret) { |
|
1319 |
// not about to self-suspend so clear suspend equivalence |
|
1320 |
clear_suspend_equivalent(); |
|
1321 |
} |
|
1322 |
// implied else: |
|
1323 |
// We have a pending external suspend request so we leave the |
|
1324 |
// suspend_equivalent flag set until java_suspend_self() sets |
|
1325 |
// the ext_suspended flag and clears the suspend_equivalent |
|
1326 |
// flag. This insures that wait_for_ext_suspend_completion() |
|
1327 |
// will return consistent values. |
|
1328 |
return ret; |
|
1329 |
} |
|
1330 |
||
1331 |
// utility methods to see if we are doing some kind of suspension |
|
1332 |
bool is_being_ext_suspended() const { |
|
1333 |
MutexLockerEx ml(SR_lock(), Mutex::_no_safepoint_check_flag); |
|
1334 |
return is_ext_suspended() || is_external_suspend(); |
|
1335 |
} |
|
1336 |
||
1337 |
bool is_suspend_equivalent() const { return _suspend_equivalent; } |
|
1338 |
||
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1339 |
void set_suspend_equivalent() { _suspend_equivalent = true; } |
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1340 |
void clear_suspend_equivalent() { _suspend_equivalent = false; } |
1 | 1341 |
|
1342 |
// Thread.stop support |
|
1343 |
void send_thread_stop(oop throwable); |
|
1344 |
AsyncRequests clear_special_runtime_exit_condition() { |
|
1345 |
AsyncRequests x = _special_runtime_exit_condition; |
|
1346 |
_special_runtime_exit_condition = _no_async_condition; |
|
1347 |
return x; |
|
1348 |
} |
|
1349 |
||
1350 |
// Are any async conditions present? |
|
1351 |
bool has_async_condition() { return (_special_runtime_exit_condition != _no_async_condition); } |
|
1352 |
||
1353 |
void check_and_handle_async_exceptions(bool check_unsafe_error = true); |
|
1354 |
||
1355 |
// these next two are also used for self-suspension and async exception support |
|
1356 |
void handle_special_runtime_exit_condition(bool check_asyncs = true); |
|
1357 |
||
1358 |
// Return true if JavaThread has an asynchronous condition or |
|
1359 |
// if external suspension is requested. |
|
1360 |
bool has_special_runtime_exit_condition() { |
|
46643 | 1361 |
// Because we don't use is_external_suspend_with_lock |
1 | 1362 |
// it is possible that we won't see an asynchronous external suspend |
1363 |
// request that has just gotten started, i.e., SR_lock grabbed but |
|
1364 |
// _external_suspend field change either not made yet or not visible |
|
1365 |
// yet. However, this is okay because the request is asynchronous and |
|
1366 |
// we will see the new flag value the next time through. It's also |
|
1367 |
// possible that the external suspend request is dropped after |
|
1368 |
// we have checked is_external_suspend(), we will recheck its value |
|
1369 |
// under SR_lock in java_suspend_self(). |
|
1370 |
return (_special_runtime_exit_condition != _no_async_condition) || |
|
47699
068d316e905e
6523512: has_special_runtime_exit_condition checks for is_deopt_suspend needlessly
jcm
parents:
47659
diff
changeset
|
1371 |
is_external_suspend() || is_trace_suspend(); |
1 | 1372 |
} |
1373 |
||
1374 |
void set_pending_unsafe_access_error() { _special_runtime_exit_condition = _async_unsafe_access_error; } |
|
1375 |
||
25351
7c198a690050
8044775: Improve usage of umbrella header atomic.inline.hpp.
goetz
parents:
25064
diff
changeset
|
1376 |
inline void set_pending_async_exception(oop e); |
1 | 1377 |
|
1378 |
// Fast-locking support |
|
1379 |
bool is_lock_owned(address adr) const; |
|
1380 |
||
1381 |
// Accessors for vframe array top |
|
1382 |
// The linked list of vframe arrays are sorted on sp. This means when we |
|
1383 |
// unpack the head must contain the vframe array to unpack. |
|
1384 |
void set_vframe_array_head(vframeArray* value) { _vframe_array_head = value; } |
|
1385 |
vframeArray* vframe_array_head() const { return _vframe_array_head; } |
|
1386 |
||
22551 | 1387 |
// Side structure for deferring update of java frame locals until deopt occurs |
1 | 1388 |
GrowableArray<jvmtiDeferredLocalVariableSet*>* deferred_locals() const { return _deferred_locals_updates; } |
1389 |
void set_deferred_locals(GrowableArray<jvmtiDeferredLocalVariableSet *>* vf) { _deferred_locals_updates = vf; } |
|
1390 |
||
1391 |
// These only really exist to make debugging deopt problems simpler |
|
1392 |
||
1393 |
void set_vframe_array_last(vframeArray* value) { _vframe_array_last = value; } |
|
1394 |
vframeArray* vframe_array_last() const { return _vframe_array_last; } |
|
1395 |
||
1396 |
// The special resourceMark used during deoptimization |
|
1397 |
||
1398 |
void set_deopt_mark(DeoptResourceMark* value) { _deopt_mark = value; } |
|
1399 |
DeoptResourceMark* deopt_mark(void) { return _deopt_mark; } |
|
1400 |
||
1401 |
intptr_t* must_deopt_id() { return _must_deopt_id; } |
|
1402 |
void set_must_deopt_id(intptr_t* id) { _must_deopt_id = id; } |
|
1403 |
void clear_must_deopt_id() { _must_deopt_id = NULL; } |
|
1404 |
||
38133
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
37474
diff
changeset
|
1405 |
void set_deopt_compiled_method(CompiledMethod* nm) { _deopt_nmethod = nm; } |
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
37474
diff
changeset
|
1406 |
CompiledMethod* deopt_compiled_method() { return _deopt_nmethod; } |
6740
2bc601284215
6986270: guarantee(*bcp != Bytecodes::_monitorenter || exec_mode != Deoptimization::Unpack_exception) fails
iveresov
parents:
6184
diff
changeset
|
1407 |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
1408 |
Method* callee_target() const { return _callee_target; } |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
1409 |
void set_callee_target (Method* x) { _callee_target = x; } |
1 | 1410 |
|
1411 |
// Oop results of vm runtime calls |
|
1412 |
oop vm_result() const { return _vm_result; } |
|
1413 |
void set_vm_result (oop x) { _vm_result = x; } |
|
1414 |
||
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
1415 |
Metadata* vm_result_2() const { return _vm_result_2; } |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
1416 |
void set_vm_result_2 (Metadata* x) { _vm_result_2 = x; } |
1 | 1417 |
|
4030
4c471254865e
6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning
ysr
parents:
3916
diff
changeset
|
1418 |
MemRegion deferred_card_mark() const { return _deferred_card_mark; } |
4c471254865e
6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning
ysr
parents:
3916
diff
changeset
|
1419 |
void set_deferred_card_mark(MemRegion mr) { _deferred_card_mark = mr; } |
4c471254865e
6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning
ysr
parents:
3916
diff
changeset
|
1420 |
|
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1421 |
#if INCLUDE_JVMCI |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1422 |
int pending_deoptimization() const { return _pending_deoptimization; } |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1423 |
oop pending_failed_speculation() const { return _pending_failed_speculation; } |
38666
5ff19807abd5
8152311: [JVMCI] allow JVMCI compiler to change the compilation policy for a method
dnsimon
parents:
38144
diff
changeset
|
1424 |
bool adjusting_comp_level() const { return _adjusting_comp_level; } |
5ff19807abd5
8152311: [JVMCI] allow JVMCI compiler to change the compilation policy for a method
dnsimon
parents:
38144
diff
changeset
|
1425 |
void set_adjusting_comp_level(bool b) { _adjusting_comp_level = b; } |
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1426 |
bool has_pending_monitorenter() const { return _pending_monitorenter; } |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1427 |
void set_pending_monitorenter(bool b) { _pending_monitorenter = b; } |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1428 |
void set_pending_deoptimization(int reason) { _pending_deoptimization = reason; } |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1429 |
void set_pending_failed_speculation(oop failed_speculation) { _pending_failed_speculation = failed_speculation; } |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1430 |
void set_pending_transfer_to_interpreter(bool b) { _pending_transfer_to_interpreter = b; } |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1431 |
void set_jvmci_alternate_call_target(address a) { assert(_jvmci._alternate_call_target == NULL, "must be"); _jvmci._alternate_call_target = a; } |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1432 |
void set_jvmci_implicit_exception_pc(address a) { assert(_jvmci._implicit_exception_pc == NULL, "must be"); _jvmci._implicit_exception_pc = a; } |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1433 |
#endif // INCLUDE_JVMCI |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1434 |
|
1 | 1435 |
// Exception handling for compiled methods |
1436 |
oop exception_oop() const { return _exception_oop; } |
|
1437 |
address exception_pc() const { return _exception_pc; } |
|
1438 |
address exception_handler_pc() const { return _exception_handler_pc; } |
|
5252
58f23871a5b6
6941529: SharedRuntime::raw_exception_handler_for_return_address must reset thread MethodHandle flag
twisti
parents:
4761
diff
changeset
|
1439 |
bool is_method_handle_return() const { return _is_method_handle_return == 1; } |
1 | 1440 |
|
20282
7f9cbdf89af2
7195622: CheckUnhandledOops has limited usefulness now
hseigel
parents:
19696
diff
changeset
|
1441 |
void set_exception_oop(oop o) { (void)const_cast<oop&>(_exception_oop = o); } |
1 | 1442 |
void set_exception_pc(address a) { _exception_pc = a; } |
1443 |
void set_exception_handler_pc(address a) { _exception_handler_pc = a; } |
|
5252
58f23871a5b6
6941529: SharedRuntime::raw_exception_handler_for_return_address must reset thread MethodHandle flag
twisti
parents:
4761
diff
changeset
|
1444 |
void set_is_method_handle_return(bool value) { _is_method_handle_return = value ? 1 : 0; } |
1 | 1445 |
|
20703
2de7fe0e9693
8005173: assert(false) failed: DEBUG MESSAGE: exception oop must be empty (macroAssembler_x86.cpp:625)
twisti
parents:
20282
diff
changeset
|
1446 |
void clear_exception_oop_and_pc() { |
2de7fe0e9693
8005173: assert(false) failed: DEBUG MESSAGE: exception oop must be empty (macroAssembler_x86.cpp:625)
twisti
parents:
20282
diff
changeset
|
1447 |
set_exception_oop(NULL); |
2de7fe0e9693
8005173: assert(false) failed: DEBUG MESSAGE: exception oop must be empty (macroAssembler_x86.cpp:625)
twisti
parents:
20282
diff
changeset
|
1448 |
set_exception_pc(NULL); |
2de7fe0e9693
8005173: assert(false) failed: DEBUG MESSAGE: exception oop must be empty (macroAssembler_x86.cpp:625)
twisti
parents:
20282
diff
changeset
|
1449 |
} |
2de7fe0e9693
8005173: assert(false) failed: DEBUG MESSAGE: exception oop must be empty (macroAssembler_x86.cpp:625)
twisti
parents:
20282
diff
changeset
|
1450 |
|
1 | 1451 |
// Stack overflow support |
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1452 |
// |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1453 |
// (small addresses) |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1454 |
// |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1455 |
// -- <-- stack_end() --- |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1456 |
// | | |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1457 |
// | red pages | |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1458 |
// | | |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1459 |
// -- <-- stack_red_zone_base() | |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1460 |
// | | |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1461 |
// | guard |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1462 |
// | yellow pages zone |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1463 |
// | | |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1464 |
// | | |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1465 |
// -- <-- stack_yellow_zone_base() | |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1466 |
// | | |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1467 |
// | | |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1468 |
// | reserved pages | |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1469 |
// | | |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1470 |
// -- <-- stack_reserved_zone_base() --- --- |
38734
69ced2325f58
8156922: [ppc] Implement template interpreter stack overflow checks as on x86/sparc.
goetz
parents:
38697
diff
changeset
|
1471 |
// /|\ shadow <-- stack_overflow_limit() (somewhere in here) |
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1472 |
// | zone |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1473 |
// \|/ size |
38734
69ced2325f58
8156922: [ppc] Implement template interpreter stack overflow checks as on x86/sparc.
goetz
parents:
38697
diff
changeset
|
1474 |
// some untouched memory --- |
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1475 |
// |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1476 |
// |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1477 |
// -- |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1478 |
// | |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1479 |
// | shadow zone |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1480 |
// | |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1481 |
// -- |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1482 |
// x frame n |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1483 |
// -- |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1484 |
// x frame n-1 |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1485 |
// x |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1486 |
// -- |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1487 |
// ... |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1488 |
// |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1489 |
// -- |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1490 |
// x frame 0 |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1491 |
// -- <-- stack_base() |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1492 |
// |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1493 |
// (large addresses) |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1494 |
// |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1495 |
|
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1496 |
private: |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1497 |
// These values are derived from flags StackRedPages, StackYellowPages, |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1498 |
// StackReservedPages and StackShadowPages. The zone size is determined |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1499 |
// ergonomically if page_size > 4K. |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1500 |
static size_t _stack_red_zone_size; |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1501 |
static size_t _stack_yellow_zone_size; |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1502 |
static size_t _stack_reserved_zone_size; |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1503 |
static size_t _stack_shadow_zone_size; |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1504 |
public: |
1 | 1505 |
inline size_t stack_available(address cur_sp); |
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1506 |
|
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1507 |
static size_t stack_red_zone_size() { |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1508 |
assert(_stack_red_zone_size > 0, "Don't call this before the field is initialized."); |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1509 |
return _stack_red_zone_size; |
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1510 |
} |
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1511 |
static void set_stack_red_zone_size(size_t s) { |
46619
a3919f5e8d2b
8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents:
41084
diff
changeset
|
1512 |
assert(is_aligned(s, os::vm_page_size()), |
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1513 |
"We can not protect if the red zone size is not page aligned."); |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1514 |
assert(_stack_red_zone_size == 0, "This should be called only once."); |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1515 |
_stack_red_zone_size = s; |
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1516 |
} |
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1517 |
address stack_red_zone_base() { |
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1518 |
return (address)(stack_end() + stack_red_zone_size()); |
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1519 |
} |
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1520 |
bool in_stack_red_zone(address a) { |
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1521 |
return a <= stack_red_zone_base() && a >= stack_end(); |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1522 |
} |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1523 |
|
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1524 |
static size_t stack_yellow_zone_size() { |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1525 |
assert(_stack_yellow_zone_size > 0, "Don't call this before the field is initialized."); |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1526 |
return _stack_yellow_zone_size; |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1527 |
} |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1528 |
static void set_stack_yellow_zone_size(size_t s) { |
46619
a3919f5e8d2b
8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents:
41084
diff
changeset
|
1529 |
assert(is_aligned(s, os::vm_page_size()), |
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1530 |
"We can not protect if the yellow zone size is not page aligned."); |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1531 |
assert(_stack_yellow_zone_size == 0, "This should be called only once."); |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1532 |
_stack_yellow_zone_size = s; |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1533 |
} |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1534 |
|
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1535 |
static size_t stack_reserved_zone_size() { |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1536 |
// _stack_reserved_zone_size may be 0. This indicates the feature is off. |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1537 |
return _stack_reserved_zone_size; |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1538 |
} |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1539 |
static void set_stack_reserved_zone_size(size_t s) { |
46619
a3919f5e8d2b
8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents:
41084
diff
changeset
|
1540 |
assert(is_aligned(s, os::vm_page_size()), |
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1541 |
"We can not protect if the reserved zone size is not page aligned."); |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1542 |
assert(_stack_reserved_zone_size == 0, "This should be called only once."); |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1543 |
_stack_reserved_zone_size = s; |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1544 |
} |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1545 |
address stack_reserved_zone_base() { |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1546 |
return (address)(stack_end() + |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1547 |
(stack_red_zone_size() + stack_yellow_zone_size() + stack_reserved_zone_size())); |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1548 |
} |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1549 |
bool in_stack_reserved_zone(address a) { |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1550 |
return (a <= stack_reserved_zone_base()) && |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1551 |
(a >= (address)((intptr_t)stack_reserved_zone_base() - stack_reserved_zone_size())); |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1552 |
} |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1553 |
|
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1554 |
static size_t stack_yellow_reserved_zone_size() { |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1555 |
return _stack_yellow_zone_size + _stack_reserved_zone_size; |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1556 |
} |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1557 |
bool in_stack_yellow_reserved_zone(address a) { |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1558 |
return (a <= stack_reserved_zone_base()) && (a >= stack_red_zone_base()); |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1559 |
} |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1560 |
|
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1561 |
// Size of red + yellow + reserved zones. |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1562 |
static size_t stack_guard_zone_size() { |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1563 |
return stack_red_zone_size() + stack_yellow_reserved_zone_size(); |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1564 |
} |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1565 |
|
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1566 |
static size_t stack_shadow_zone_size() { |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1567 |
assert(_stack_shadow_zone_size > 0, "Don't call this before the field is initialized."); |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1568 |
return _stack_shadow_zone_size; |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1569 |
} |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1570 |
static void set_stack_shadow_zone_size(size_t s) { |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1571 |
// The shadow area is not allocated or protected, so |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1572 |
// it needs not be page aligned. |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1573 |
// But the stack bang currently assumes that it is a |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1574 |
// multiple of page size. This guarantees that the bang |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1575 |
// loop touches all pages in the shadow zone. |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1576 |
// This can be guaranteed differently, as well. E.g., if |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1577 |
// the page size is a multiple of 4K, banging in 4K steps |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1578 |
// suffices to touch all pages. (Some pages are banged |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1579 |
// several times, though.) |
46619
a3919f5e8d2b
8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents:
41084
diff
changeset
|
1580 |
assert(is_aligned(s, os::vm_page_size()), |
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1581 |
"Stack bang assumes multiple of page size."); |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1582 |
assert(_stack_shadow_zone_size == 0, "This should be called only once."); |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1583 |
_stack_shadow_zone_size = s; |
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1584 |
} |
1 | 1585 |
|
1586 |
void create_stack_guard_pages(); |
|
1587 |
void remove_stack_guard_pages(); |
|
1588 |
||
35071
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34666
diff
changeset
|
1589 |
void enable_stack_reserved_zone(); |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34666
diff
changeset
|
1590 |
void disable_stack_reserved_zone(); |
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1591 |
void enable_stack_yellow_reserved_zone(); |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1592 |
void disable_stack_yellow_reserved_zone(); |
1 | 1593 |
void enable_stack_red_zone(); |
1594 |
void disable_stack_red_zone(); |
|
1595 |
||
15926
8e87d545195f
7107135: Stack guard pages are no more protected after loading a shared library with executable stack
iklam
parents:
15482
diff
changeset
|
1596 |
inline bool stack_guard_zone_unused(); |
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1597 |
inline bool stack_yellow_reserved_zone_disabled(); |
35071
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34666
diff
changeset
|
1598 |
inline bool stack_reserved_zone_disabled(); |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34666
diff
changeset
|
1599 |
inline bool stack_guards_enabled(); |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34666
diff
changeset
|
1600 |
|
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34666
diff
changeset
|
1601 |
address reserved_stack_activation() const { return _reserved_stack_activation; } |
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1602 |
void set_reserved_stack_activation(address addr) { |
35071
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34666
diff
changeset
|
1603 |
assert(_reserved_stack_activation == stack_base() |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34666
diff
changeset
|
1604 |
|| _reserved_stack_activation == NULL |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34666
diff
changeset
|
1605 |
|| addr == stack_base(), "Must not be set twice"); |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34666
diff
changeset
|
1606 |
_reserved_stack_activation = addr; |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34666
diff
changeset
|
1607 |
} |
1 | 1608 |
|
1609 |
// Attempt to reguard the stack after a stack overflow may have occurred. |
|
1610 |
// Returns true if (a) guard pages are not needed on this thread, (b) the |
|
1611 |
// pages are already guarded, or (c) the pages were successfully reguarded. |
|
1612 |
// Returns false if there is not enough stack space to reguard the pages, in |
|
1613 |
// which case the caller should unwind a frame and try again. The argument |
|
1614 |
// should be the caller's (approximate) sp. |
|
1615 |
bool reguard_stack(address cur_sp); |
|
1616 |
// Similar to above but see if current stackpoint is out of the guard area |
|
1617 |
// and reguard if possible. |
|
1618 |
bool reguard_stack(void); |
|
1619 |
||
22810
3a4dae5224c7
8017313: PPC64 (part 6): stack handling improvements
goetz
parents:
18025
diff
changeset
|
1620 |
address stack_overflow_limit() { return _stack_overflow_limit; } |
3a4dae5224c7
8017313: PPC64 (part 6): stack handling improvements
goetz
parents:
18025
diff
changeset
|
1621 |
void set_stack_overflow_limit() { |
38734
69ced2325f58
8156922: [ppc] Implement template interpreter stack overflow checks as on x86/sparc.
goetz
parents:
38697
diff
changeset
|
1622 |
_stack_overflow_limit = |
69ced2325f58
8156922: [ppc] Implement template interpreter stack overflow checks as on x86/sparc.
goetz
parents:
38697
diff
changeset
|
1623 |
stack_end() + MAX2(JavaThread::stack_guard_zone_size(), JavaThread::stack_shadow_zone_size()); |
22810
3a4dae5224c7
8017313: PPC64 (part 6): stack handling improvements
goetz
parents:
18025
diff
changeset
|
1624 |
} |
3a4dae5224c7
8017313: PPC64 (part 6): stack handling improvements
goetz
parents:
18025
diff
changeset
|
1625 |
|
1 | 1626 |
// Misc. accessors/mutators |
1627 |
void set_do_not_unlock(void) { _do_not_unlock_if_synchronized = true; } |
|
1628 |
void clr_do_not_unlock(void) { _do_not_unlock_if_synchronized = false; } |
|
1629 |
bool do_not_unlock(void) { return _do_not_unlock_if_synchronized; } |
|
1630 |
||
1631 |
#ifndef PRODUCT |
|
1632 |
void record_jump(address target, address instr, const char* file, int line); |
|
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1633 |
#endif // PRODUCT |
1 | 1634 |
|
1635 |
// For assembly stub generation |
|
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
1636 |
static ByteSize threadObj_offset() { return byte_offset_of(JavaThread, _threadObj); } |
1 | 1637 |
#ifndef PRODUCT |
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
1638 |
static ByteSize jmp_ring_index_offset() { return byte_offset_of(JavaThread, _jmp_ring_index); } |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
1639 |
static ByteSize jmp_ring_offset() { return byte_offset_of(JavaThread, _jmp_ring); } |
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1640 |
#endif // PRODUCT |
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
1641 |
static ByteSize jni_environment_offset() { return byte_offset_of(JavaThread, _jni_environment); } |
41084
fc5db29fa08e
8164086: Checked JNI pending exception check should be cleared when returning to Java frame
dsimms
parents:
40010
diff
changeset
|
1642 |
static ByteSize pending_jni_exception_check_fn_offset() { |
fc5db29fa08e
8164086: Checked JNI pending exception check should be cleared when returning to Java frame
dsimms
parents:
40010
diff
changeset
|
1643 |
return byte_offset_of(JavaThread, _pending_jni_exception_check_fn); |
fc5db29fa08e
8164086: Checked JNI pending exception check should be cleared when returning to Java frame
dsimms
parents:
40010
diff
changeset
|
1644 |
} |
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
1645 |
static ByteSize last_Java_sp_offset() { |
1 | 1646 |
return byte_offset_of(JavaThread, _anchor) + JavaFrameAnchor::last_Java_sp_offset(); |
1647 |
} |
|
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
1648 |
static ByteSize last_Java_pc_offset() { |
1 | 1649 |
return byte_offset_of(JavaThread, _anchor) + JavaFrameAnchor::last_Java_pc_offset(); |
1650 |
} |
|
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
1651 |
static ByteSize frame_anchor_offset() { |
1 | 1652 |
return byte_offset_of(JavaThread, _anchor); |
1653 |
} |
|
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
1654 |
static ByteSize callee_target_offset() { return byte_offset_of(JavaThread, _callee_target); } |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
1655 |
static ByteSize vm_result_offset() { return byte_offset_of(JavaThread, _vm_result); } |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
1656 |
static ByteSize vm_result_2_offset() { return byte_offset_of(JavaThread, _vm_result_2); } |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
1657 |
static ByteSize thread_state_offset() { return byte_offset_of(JavaThread, _thread_state); } |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
1658 |
static ByteSize saved_exception_pc_offset() { return byte_offset_of(JavaThread, _saved_exception_pc); } |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
1659 |
static ByteSize osthread_offset() { return byte_offset_of(JavaThread, _osthread); } |
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1660 |
#if INCLUDE_JVMCI |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1661 |
static ByteSize pending_deoptimization_offset() { return byte_offset_of(JavaThread, _pending_deoptimization); } |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1662 |
static ByteSize pending_monitorenter_offset() { return byte_offset_of(JavaThread, _pending_monitorenter); } |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1663 |
static ByteSize pending_failed_speculation_offset() { return byte_offset_of(JavaThread, _pending_failed_speculation); } |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1664 |
static ByteSize jvmci_alternate_call_target_offset() { return byte_offset_of(JavaThread, _jvmci._alternate_call_target); } |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1665 |
static ByteSize jvmci_implicit_exception_pc_offset() { return byte_offset_of(JavaThread, _jvmci._implicit_exception_pc); } |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1666 |
static ByteSize jvmci_counters_offset() { return byte_offset_of(JavaThread, _jvmci_counters); } |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1667 |
#endif // INCLUDE_JVMCI |
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
1668 |
static ByteSize exception_oop_offset() { return byte_offset_of(JavaThread, _exception_oop); } |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
1669 |
static ByteSize exception_pc_offset() { return byte_offset_of(JavaThread, _exception_pc); } |
1 | 1670 |
static ByteSize exception_handler_pc_offset() { return byte_offset_of(JavaThread, _exception_handler_pc); } |
22810
3a4dae5224c7
8017313: PPC64 (part 6): stack handling improvements
goetz
parents:
18025
diff
changeset
|
1671 |
static ByteSize stack_overflow_limit_offset() { return byte_offset_of(JavaThread, _stack_overflow_limit); } |
5252
58f23871a5b6
6941529: SharedRuntime::raw_exception_handler_for_return_address must reset thread MethodHandle flag
twisti
parents:
4761
diff
changeset
|
1672 |
static ByteSize is_method_handle_return_offset() { return byte_offset_of(JavaThread, _is_method_handle_return); } |
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
1673 |
static ByteSize stack_guard_state_offset() { return byte_offset_of(JavaThread, _stack_guard_state); } |
35071
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34666
diff
changeset
|
1674 |
static ByteSize reserved_stack_activation_offset() { return byte_offset_of(JavaThread, _reserved_stack_activation); } |
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
1675 |
static ByteSize suspend_flags_offset() { return byte_offset_of(JavaThread, _suspend_flags); } |
1 | 1676 |
|
1677 |
static ByteSize do_not_unlock_if_synchronized_offset() { return byte_offset_of(JavaThread, _do_not_unlock_if_synchronized); } |
|
4761
bdb7375a1fee
6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents:
4573
diff
changeset
|
1678 |
static ByteSize should_post_on_exceptions_flag_offset() { |
bdb7375a1fee
6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents:
4573
diff
changeset
|
1679 |
return byte_offset_of(JavaThread, _should_post_on_exceptions_flag); |
bdb7375a1fee
6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents:
4573
diff
changeset
|
1680 |
} |
1 | 1681 |
|
15482
470d0b0c09f1
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
14582
diff
changeset
|
1682 |
#if INCLUDE_ALL_GCS |
1374 | 1683 |
static ByteSize satb_mark_queue_offset() { return byte_offset_of(JavaThread, _satb_mark_queue); } |
1684 |
static ByteSize dirty_card_queue_offset() { return byte_offset_of(JavaThread, _dirty_card_queue); } |
|
15482
470d0b0c09f1
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
14582
diff
changeset
|
1685 |
#endif // INCLUDE_ALL_GCS |
1374 | 1686 |
|
1 | 1687 |
// Returns the jni environment for this thread |
1688 |
JNIEnv* jni_environment() { return &_jni_environment; } |
|
1689 |
||
1690 |
static JavaThread* thread_from_jni_environment(JNIEnv* env) { |
|
1691 |
JavaThread *thread_from_jni_env = (JavaThread*)((intptr_t)env - in_bytes(jni_environment_offset())); |
|
1692 |
// Only return NULL if thread is off the thread list; starting to |
|
1693 |
// exit should not return NULL. |
|
1694 |
if (thread_from_jni_env->is_terminated()) { |
|
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1695 |
thread_from_jni_env->block_if_vm_exited(); |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1696 |
return NULL; |
1 | 1697 |
} else { |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1698 |
return thread_from_jni_env; |
1 | 1699 |
} |
1700 |
} |
|
1701 |
||
1702 |
// JNI critical regions. These can nest. |
|
1703 |
bool in_critical() { return _jni_active_critical > 0; } |
|
11631
33813f69207b
7129164: JNI Get/ReleasePrimitiveArrayCritical doesn't scale
never
parents:
11480
diff
changeset
|
1704 |
bool in_last_critical() { return _jni_active_critical == 1; } |
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1705 |
void enter_critical() { |
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1706 |
assert(Thread::current() == this || |
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1707 |
(Thread::current()->is_VM_thread() && |
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1708 |
SafepointSynchronize::is_synchronizing()), |
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1709 |
"this must be current thread or synchronizing"); |
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1710 |
_jni_active_critical++; |
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1711 |
} |
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1712 |
void exit_critical() { |
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1713 |
assert(Thread::current() == this, "this must be current thread"); |
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1714 |
_jni_active_critical--; |
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1715 |
assert(_jni_active_critical >= 0, "JNI critical nesting problem?"); |
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1716 |
} |
1 | 1717 |
|
41084
fc5db29fa08e
8164086: Checked JNI pending exception check should be cleared when returning to Java frame
dsimms
parents:
40010
diff
changeset
|
1718 |
// Checked JNI: is the programmer required to check for exceptions, if so specify |
fc5db29fa08e
8164086: Checked JNI pending exception check should be cleared when returning to Java frame
dsimms
parents:
40010
diff
changeset
|
1719 |
// which function name. Returning to a Java frame should implicitly clear the |
fc5db29fa08e
8164086: Checked JNI pending exception check should be cleared when returning to Java frame
dsimms
parents:
40010
diff
changeset
|
1720 |
// pending check, this is done for Native->Java transitions (i.e. user JNI code). |
fc5db29fa08e
8164086: Checked JNI pending exception check should be cleared when returning to Java frame
dsimms
parents:
40010
diff
changeset
|
1721 |
// VM->Java transistions are not cleared, it is expected that JNI code enclosed |
fc5db29fa08e
8164086: Checked JNI pending exception check should be cleared when returning to Java frame
dsimms
parents:
40010
diff
changeset
|
1722 |
// within ThreadToNativeFromVM makes proper exception checks (i.e. VM internal). |
25058
4542f853c2ac
8043224: -Xcheck:jni improvements to exception checking and excessive local refs
dsimms
parents:
24424
diff
changeset
|
1723 |
bool is_pending_jni_exception_check() const { return _pending_jni_exception_check_fn != NULL; } |
4542f853c2ac
8043224: -Xcheck:jni improvements to exception checking and excessive local refs
dsimms
parents:
24424
diff
changeset
|
1724 |
void clear_pending_jni_exception_check() { _pending_jni_exception_check_fn = NULL; } |
4542f853c2ac
8043224: -Xcheck:jni improvements to exception checking and excessive local refs
dsimms
parents:
24424
diff
changeset
|
1725 |
const char* get_pending_jni_exception_check() const { return _pending_jni_exception_check_fn; } |
4542f853c2ac
8043224: -Xcheck:jni improvements to exception checking and excessive local refs
dsimms
parents:
24424
diff
changeset
|
1726 |
void set_pending_jni_exception_check(const char* fn_name) { _pending_jni_exception_check_fn = (char*) fn_name; } |
4542f853c2ac
8043224: -Xcheck:jni improvements to exception checking and excessive local refs
dsimms
parents:
24424
diff
changeset
|
1727 |
|
1 | 1728 |
// For deadlock detection |
1729 |
int depth_first_number() { return _depth_first_number; } |
|
1730 |
void set_depth_first_number(int dfn) { _depth_first_number = dfn; } |
|
1731 |
||
1732 |
private: |
|
1733 |
void set_monitor_chunks(MonitorChunk* monitor_chunks) { _monitor_chunks = monitor_chunks; } |
|
1734 |
||
1735 |
public: |
|
1736 |
MonitorChunk* monitor_chunks() const { return _monitor_chunks; } |
|
1737 |
void add_monitor_chunk(MonitorChunk* chunk); |
|
1738 |
void remove_monitor_chunk(MonitorChunk* chunk); |
|
1739 |
bool in_deopt_handler() const { return _in_deopt_handler > 0; } |
|
1740 |
void inc_in_deopt_handler() { _in_deopt_handler++; } |
|
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
1741 |
void dec_in_deopt_handler() { |
1 | 1742 |
assert(_in_deopt_handler > 0, "mismatched deopt nesting"); |
1743 |
if (_in_deopt_handler > 0) { // robustness |
|
1744 |
_in_deopt_handler--; |
|
1745 |
} |
|
1746 |
} |
|
1747 |
||
1748 |
private: |
|
1749 |
void set_entry_point(ThreadFunction entry_point) { _entry_point = entry_point; } |
|
1750 |
||
1751 |
public: |
|
1752 |
||
1753 |
// Frame iteration; calls the function f for all frames on the stack |
|
1754 |
void frames_do(void f(frame*, const RegisterMap*)); |
|
1755 |
||
1756 |
// Memory operations |
|
38074
8475fdc6dcc3
8154580: Save mirror in interpreter frame to enable cleanups of CLDClosure
coleenp
parents:
37474
diff
changeset
|
1757 |
void oops_do(OopClosure* f, CodeBlobClosure* cf); |
1 | 1758 |
|
1759 |
// Sweeper operations |
|
37288
a31d47bbbdf6
8074553: Crash with assert(!is_unloaded()) failed: should not call follow on unloaded nmethod
thartmann
parents:
36384
diff
changeset
|
1760 |
virtual void nmethods_do(CodeBlobClosure* cf); |
1 | 1761 |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
1762 |
// RedefineClasses Support |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
1763 |
void metadata_do(void f(Metadata*)); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
1764 |
|
1 | 1765 |
// Misc. operations |
1766 |
char* name() const { return (char*)get_thread_name(); } |
|
1767 |
void print_on(outputStream* st) const; |
|
1768 |
void print_value(); |
|
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1769 |
void print_thread_state_on(outputStream*) const PRODUCT_RETURN; |
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1770 |
void print_thread_state() const PRODUCT_RETURN; |
1 | 1771 |
void print_on_error(outputStream* st, char* buf, int buflen) const; |
35825
7c7652ee137b
8063112: Compiler diagnostic commands should have locking instead of safepoint
neliasso
parents:
35495
diff
changeset
|
1772 |
void print_name_on_error(outputStream* st, char* buf, int buflen) const; |
1 | 1773 |
void verify(); |
1774 |
const char* get_thread_name() const; |
|
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1775 |
private: |
1 | 1776 |
// factor out low-level mechanics for use in both normal and error cases |
1777 |
const char* get_thread_name_string(char* buf = NULL, int buflen = 0) const; |
|
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1778 |
public: |
1 | 1779 |
const char* get_threadgroup_name() const; |
1780 |
const char* get_parent_name() const; |
|
1781 |
||
1782 |
// Accessing frames |
|
1783 |
frame last_frame() { |
|
1784 |
_anchor.make_walkable(this); |
|
1785 |
return pd_last_frame(); |
|
1786 |
} |
|
1787 |
javaVFrame* last_java_vframe(RegisterMap* reg_map); |
|
1788 |
||
1789 |
// Returns method at 'depth' java or native frames down the stack |
|
1790 |
// Used for security checks |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
1791 |
Klass* security_get_caller_class(int depth); |
1 | 1792 |
|
1793 |
// Print stack trace in external format |
|
1794 |
void print_stack_on(outputStream* st); |
|
1795 |
void print_stack() { print_stack_on(tty); } |
|
1796 |
||
1797 |
// Print stack traces in various internal formats |
|
1798 |
void trace_stack() PRODUCT_RETURN; |
|
1799 |
void trace_stack_from(vframe* start_vf) PRODUCT_RETURN; |
|
1800 |
void trace_frames() PRODUCT_RETURN; |
|
10517
f92c9ff3a15f
7051798: SA-JDI: NPE in Frame.addressOfStackSlot(Frame.java:244)
never
parents:
10508
diff
changeset
|
1801 |
void trace_oops() PRODUCT_RETURN; |
1 | 1802 |
|
9437
9981851b4b8c
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents:
8110
diff
changeset
|
1803 |
// Print an annotated view of the stack frames |
9942
2e86734ba620
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
9437
diff
changeset
|
1804 |
void print_frame_layout(int depth = 0, bool validate_only = false) NOT_DEBUG_RETURN; |
9437
9981851b4b8c
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents:
8110
diff
changeset
|
1805 |
void validate_frame_layout() { |
9981851b4b8c
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents:
8110
diff
changeset
|
1806 |
print_frame_layout(0, true); |
9981851b4b8c
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents:
8110
diff
changeset
|
1807 |
} |
9981851b4b8c
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
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8110
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|
1808 |
|
1 | 1809 |
// Returns the number of stack frames on the stack |
1810 |
int depth() const; |
|
1811 |
||
1812 |
// Function for testing deoptimization |
|
1813 |
void deoptimize(); |
|
1814 |
void make_zombies(); |
|
1815 |
||
1816 |
void deoptimized_wrt_marked_nmethods(); |
|
1817 |
||
1818 |
public: |
|
1819 |
// Returns the running thread as a JavaThread |
|
1820 |
static inline JavaThread* current(); |
|
1821 |
||
1822 |
// Returns the active Java thread. Do not use this if you know you are calling |
|
1823 |
// from a JavaThread, as it's slower than JavaThread::current. If called from |
|
1824 |
// the VMThread, it also returns the JavaThread that instigated the VMThread's |
|
1825 |
// operation. You may not want that either. |
|
1826 |
static JavaThread* active(); |
|
1827 |
||
1828 |
inline CompilerThread* as_CompilerThread(); |
|
1829 |
||
1830 |
public: |
|
1831 |
virtual void run(); |
|
1832 |
void thread_main_inner(); |
|
1833 |
||
1834 |
private: |
|
1835 |
// PRIVILEGED STACK |
|
1836 |
PrivilegedElement* _privileged_stack_top; |
|
1837 |
GrowableArray<oop>* _array_for_gc; |
|
1838 |
public: |
|
1839 |
||
1840 |
// Returns the privileged_stack information. |
|
1841 |
PrivilegedElement* privileged_stack_top() const { return _privileged_stack_top; } |
|
1842 |
void set_privileged_stack_top(PrivilegedElement *e) { _privileged_stack_top = e; } |
|
1843 |
void register_array_for_gc(GrowableArray<oop>* array) { _array_for_gc = array; } |
|
1844 |
||
1845 |
public: |
|
1846 |
// Thread local information maintained by JVMTI. |
|
1847 |
void set_jvmti_thread_state(JvmtiThreadState *value) { _jvmti_thread_state = value; } |
|
2135
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diff
changeset
|
1848 |
// A JvmtiThreadState is lazily allocated. This jvmti_thread_state() |
f82c3012ec86
6800721: 3/4 JavaThread::jvmti_thread_state() and JvmtiThreadState::state_for() robustness
dcubed
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diff
changeset
|
1849 |
// getter is used to get this JavaThread's JvmtiThreadState if it has |
f82c3012ec86
6800721: 3/4 JavaThread::jvmti_thread_state() and JvmtiThreadState::state_for() robustness
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parents:
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diff
changeset
|
1850 |
// one which means NULL can be returned. JvmtiThreadState::state_for() |
f82c3012ec86
6800721: 3/4 JavaThread::jvmti_thread_state() and JvmtiThreadState::state_for() robustness
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parents:
1623
diff
changeset
|
1851 |
// is used to get the specified JavaThread's JvmtiThreadState if it has |
f82c3012ec86
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parents:
1623
diff
changeset
|
1852 |
// one or it allocates a new JvmtiThreadState for the JavaThread and |
f82c3012ec86
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dcubed
parents:
1623
diff
changeset
|
1853 |
// returns it. JvmtiThreadState::state_for() will return NULL only if |
f82c3012ec86
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dcubed
parents:
1623
diff
changeset
|
1854 |
// the specified JavaThread is exiting. |
1 | 1855 |
JvmtiThreadState *jvmti_thread_state() const { return _jvmti_thread_state; } |
1856 |
static ByteSize jvmti_thread_state_offset() { return byte_offset_of(JavaThread, _jvmti_thread_state); } |
|
1857 |
void set_jvmti_get_loaded_classes_closure(JvmtiGetLoadedClassesClosure* value) { _jvmti_get_loaded_classes_closure = value; } |
|
1858 |
JvmtiGetLoadedClassesClosure* get_jvmti_get_loaded_classes_closure() const { return _jvmti_get_loaded_classes_closure; } |
|
1859 |
||
1860 |
// JVMTI PopFrame support |
|
1861 |
// Setting and clearing popframe_condition |
|
1862 |
// All of these enumerated values are bits. popframe_pending |
|
1863 |
// indicates that a PopFrame() has been requested and not yet been |
|
1864 |
// completed. popframe_processing indicates that that PopFrame() is in |
|
1865 |
// the process of being completed. popframe_force_deopt_reexecution_bit |
|
1866 |
// indicates that special handling is required when returning to a |
|
1867 |
// deoptimized caller. |
|
1868 |
enum PopCondition { |
|
1869 |
popframe_inactive = 0x00, |
|
1870 |
popframe_pending_bit = 0x01, |
|
1871 |
popframe_processing_bit = 0x02, |
|
1872 |
popframe_force_deopt_reexecution_bit = 0x04 |
|
1873 |
}; |
|
1874 |
PopCondition popframe_condition() { return (PopCondition) _popframe_condition; } |
|
1875 |
void set_popframe_condition(PopCondition c) { _popframe_condition = c; } |
|
1876 |
void set_popframe_condition_bit(PopCondition c) { _popframe_condition |= c; } |
|
1877 |
void clear_popframe_condition() { _popframe_condition = popframe_inactive; } |
|
1878 |
static ByteSize popframe_condition_offset() { return byte_offset_of(JavaThread, _popframe_condition); } |
|
1879 |
bool has_pending_popframe() { return (popframe_condition() & popframe_pending_bit) != 0; } |
|
1880 |
bool popframe_forcing_deopt_reexecution() { return (popframe_condition() & popframe_force_deopt_reexecution_bit) != 0; } |
|
1881 |
void clear_popframe_forcing_deopt_reexecution() { _popframe_condition &= ~popframe_force_deopt_reexecution_bit; } |
|
1882 |
#ifdef CC_INTERP |
|
1883 |
bool pop_frame_pending(void) { return ((_popframe_condition & popframe_pending_bit) != 0); } |
|
1884 |
void clr_pop_frame_pending(void) { _popframe_condition = popframe_inactive; } |
|
1885 |
bool pop_frame_in_process(void) { return ((_popframe_condition & popframe_processing_bit) != 0); } |
|
1886 |
void set_pop_frame_in_process(void) { _popframe_condition |= popframe_processing_bit; } |
|
1887 |
void clr_pop_frame_in_process(void) { _popframe_condition &= ~popframe_processing_bit; } |
|
1888 |
#endif |
|
1889 |
||
28039
bf5a8340bf8a
6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents:
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diff
changeset
|
1890 |
int frames_to_pop_failed_realloc() const { return _frames_to_pop_failed_realloc; } |
bf5a8340bf8a
6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents:
27917
diff
changeset
|
1891 |
void set_frames_to_pop_failed_realloc(int nb) { _frames_to_pop_failed_realloc = nb; } |
bf5a8340bf8a
6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents:
27917
diff
changeset
|
1892 |
void dec_frames_to_pop_failed_realloc() { _frames_to_pop_failed_realloc--; } |
bf5a8340bf8a
6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents:
27917
diff
changeset
|
1893 |
|
1 | 1894 |
private: |
1895 |
// Saved incoming arguments to popped frame. |
|
1896 |
// Used only when popped interpreted frame returns to deoptimized frame. |
|
1897 |
void* _popframe_preserved_args; |
|
1898 |
int _popframe_preserved_args_size; |
|
1899 |
||
1900 |
public: |
|
1901 |
void popframe_preserve_args(ByteSize size_in_bytes, void* start); |
|
1902 |
void* popframe_preserved_args(); |
|
1903 |
ByteSize popframe_preserved_args_size(); |
|
1904 |
WordSize popframe_preserved_args_size_in_words(); |
|
1905 |
void popframe_free_preserved_args(); |
|
1906 |
||
1907 |
||
1908 |
private: |
|
1909 |
JvmtiThreadState *_jvmti_thread_state; |
|
1910 |
JvmtiGetLoadedClassesClosure* _jvmti_get_loaded_classes_closure; |
|
1911 |
||
1912 |
// Used by the interpreter in fullspeed mode for frame pop, method |
|
1913 |
// entry, method exit and single stepping support. This field is |
|
1914 |
// only set to non-zero by the VM_EnterInterpOnlyMode VM operation. |
|
1915 |
// It can be set to zero asynchronously (i.e., without a VM operation |
|
1916 |
// or a lock) so we have to be very careful. |
|
1917 |
int _interp_only_mode; |
|
1918 |
||
1919 |
public: |
|
1920 |
// used by the interpreter for fullspeed debugging support (see above) |
|
1921 |
static ByteSize interp_only_mode_offset() { return byte_offset_of(JavaThread, _interp_only_mode); } |
|
1922 |
bool is_interp_only_mode() { return (_interp_only_mode != 0); } |
|
1923 |
int get_interp_only_mode() { return _interp_only_mode; } |
|
1924 |
void increment_interp_only_mode() { ++_interp_only_mode; } |
|
1925 |
void decrement_interp_only_mode() { --_interp_only_mode; } |
|
1926 |
||
4761
bdb7375a1fee
6902182: 4/4 Starting with jdwp agent should not incur performance penalty
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parents:
4573
diff
changeset
|
1927 |
// support for cached flag that indicates whether exceptions need to be posted for this thread |
bdb7375a1fee
6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents:
4573
diff
changeset
|
1928 |
// if this is false, we can avoid deoptimizing when events are thrown |
bdb7375a1fee
6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents:
4573
diff
changeset
|
1929 |
// this gets set to reflect whether jvmtiExport::post_exception_throw would actually do anything |
bdb7375a1fee
6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents:
4573
diff
changeset
|
1930 |
private: |
bdb7375a1fee
6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents:
4573
diff
changeset
|
1931 |
int _should_post_on_exceptions_flag; |
bdb7375a1fee
6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents:
4573
diff
changeset
|
1932 |
|
bdb7375a1fee
6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents:
4573
diff
changeset
|
1933 |
public: |
bdb7375a1fee
6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents:
4573
diff
changeset
|
1934 |
int should_post_on_exceptions_flag() { return _should_post_on_exceptions_flag; } |
bdb7375a1fee
6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents:
4573
diff
changeset
|
1935 |
void set_should_post_on_exceptions_flag(int val) { _should_post_on_exceptions_flag = val; } |
bdb7375a1fee
6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents:
4573
diff
changeset
|
1936 |
|
1 | 1937 |
private: |
1938 |
ThreadStatistics *_thread_stat; |
|
1939 |
||
1940 |
public: |
|
1941 |
ThreadStatistics* get_thread_stat() const { return _thread_stat; } |
|
1942 |
||
1943 |
// Return a blocker object for which this thread is blocked parking. |
|
1944 |
oop current_park_blocker(); |
|
1945 |
||
1946 |
private: |
|
1947 |
static size_t _stack_size_at_create; |
|
1948 |
||
1949 |
public: |
|
1950 |
static inline size_t stack_size_at_create(void) { |
|
1951 |
return _stack_size_at_create; |
|
1952 |
} |
|
1953 |
static inline void set_stack_size_at_create(size_t value) { |
|
1954 |
_stack_size_at_create = value; |
|
1955 |
} |
|
1956 |
||
15482
470d0b0c09f1
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
14582
diff
changeset
|
1957 |
#if INCLUDE_ALL_GCS |
1374 | 1958 |
// SATB marking queue support |
33792 | 1959 |
SATBMarkQueue& satb_mark_queue() { return _satb_mark_queue; } |
1374 | 1960 |
static SATBMarkQueueSet& satb_mark_queue_set() { |
1961 |
return _satb_mark_queue_set; |
|
1962 |
} |
|
1963 |
||
1964 |
// Dirty card queue support |
|
1965 |
DirtyCardQueue& dirty_card_queue() { return _dirty_card_queue; } |
|
1966 |
static DirtyCardQueueSet& dirty_card_queue_set() { |
|
1967 |
return _dirty_card_queue_set; |
|
1968 |
} |
|
15482
470d0b0c09f1
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
14582
diff
changeset
|
1969 |
#endif // INCLUDE_ALL_GCS |
1374 | 1970 |
|
6768
71338ecb7813
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
6184
diff
changeset
|
1971 |
// This method initializes the SATB and dirty card queues before a |
71338ecb7813
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
6184
diff
changeset
|
1972 |
// JavaThread is added to the Java thread list. Right now, we don't |
71338ecb7813
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
6184
diff
changeset
|
1973 |
// have to do anything to the dirty card queue (it should have been |
71338ecb7813
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
6184
diff
changeset
|
1974 |
// activated when the thread was created), but we have to activate |
71338ecb7813
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
6184
diff
changeset
|
1975 |
// the SATB queue if the thread is created while a marking cycle is |
71338ecb7813
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
6184
diff
changeset
|
1976 |
// in progress. The activation / de-activation of the SATB queues at |
71338ecb7813
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
6184
diff
changeset
|
1977 |
// the beginning / end of a marking cycle is done during safepoints |
71338ecb7813
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
6184
diff
changeset
|
1978 |
// so we have to make sure this method is called outside one to be |
71338ecb7813
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
6184
diff
changeset
|
1979 |
// able to safely read the active field of the SATB queue set. Right |
71338ecb7813
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
6184
diff
changeset
|
1980 |
// now, it is called just before the thread is added to the Java |
71338ecb7813
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
6184
diff
changeset
|
1981 |
// thread list in the Threads::add() method. That method is holding |
71338ecb7813
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
6184
diff
changeset
|
1982 |
// the Threads_lock which ensures we are outside a safepoint. We |
71338ecb7813
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
6184
diff
changeset
|
1983 |
// cannot do the obvious and set the active field of the SATB queue |
71338ecb7813
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
6184
diff
changeset
|
1984 |
// when the thread is created given that, in some cases, safepoints |
71338ecb7813
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
6184
diff
changeset
|
1985 |
// might happen between the JavaThread constructor being called and the |
71338ecb7813
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
6184
diff
changeset
|
1986 |
// thread being added to the Java thread list (an example of this is |
71338ecb7813
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
6184
diff
changeset
|
1987 |
// when the structure for the DestroyJavaVM thread is created). |
15482
470d0b0c09f1
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
14582
diff
changeset
|
1988 |
#if INCLUDE_ALL_GCS |
6768
71338ecb7813
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
6184
diff
changeset
|
1989 |
void initialize_queues(); |
15482
470d0b0c09f1
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
14582
diff
changeset
|
1990 |
#else // INCLUDE_ALL_GCS |
6768
71338ecb7813
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
6184
diff
changeset
|
1991 |
void initialize_queues() { } |
15482
470d0b0c09f1
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
14582
diff
changeset
|
1992 |
#endif // INCLUDE_ALL_GCS |
6768
71338ecb7813
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
6184
diff
changeset
|
1993 |
|
1 | 1994 |
// Machine dependent stuff |
40010 | 1995 |
#include OS_CPU_HEADER(thread) |
1 | 1996 |
|
1997 |
public: |
|
1998 |
void set_blocked_on_compilation(bool value) { |
|
1999 |
_blocked_on_compilation = value; |
|
2000 |
} |
|
2001 |
||
2002 |
bool blocked_on_compilation() { |
|
2003 |
return _blocked_on_compilation; |
|
2004 |
} |
|
2005 |
protected: |
|
2006 |
bool _blocked_on_compilation; |
|
2007 |
||
2008 |
||
2009 |
// JSR166 per-thread parker |
|
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
2010 |
private: |
1 | 2011 |
Parker* _parker; |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
2012 |
public: |
1 | 2013 |
Parker* parker() { return _parker; } |
2014 |
||
2015 |
// Biased locking support |
|
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
2016 |
private: |
1 | 2017 |
GrowableArray<MonitorInfo*>* _cached_monitor_info; |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
2018 |
public: |
1 | 2019 |
GrowableArray<MonitorInfo*>* cached_monitor_info() { return _cached_monitor_info; } |
2020 |
void set_cached_monitor_info(GrowableArray<MonitorInfo*>* info) { _cached_monitor_info = info; } |
|
2021 |
||
2022 |
// clearing/querying jni attach status |
|
10739 | 2023 |
bool is_attaching_via_jni() const { return _jni_attach_state == _attaching_via_jni; } |
2024 |
bool has_attached_via_jni() const { return is_attaching_via_jni() || _jni_attach_state == _attached_via_jni; } |
|
24351
61b33cc6d3cf
8042195: Introduce umbrella header orderAccess.inline.hpp.
goetz
parents:
23855
diff
changeset
|
2025 |
inline void set_done_attaching_via_jni(); |
1 | 2026 |
}; |
2027 |
||
2028 |
// Inline implementation of JavaThread::current |
|
2029 |
inline JavaThread* JavaThread::current() { |
|
34633
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
33792
diff
changeset
|
2030 |
Thread* thread = Thread::current(); |
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
33792
diff
changeset
|
2031 |
assert(thread->is_Java_thread(), "just checking"); |
1 | 2032 |
return (JavaThread*)thread; |
2033 |
} |
|
2034 |
||
2035 |
inline CompilerThread* JavaThread::as_CompilerThread() { |
|
2036 |
assert(is_Compiler_thread(), "just checking"); |
|
2037 |
return (CompilerThread*)this; |
|
2038 |
} |
|
2039 |
||
27420
04e6f914cce1
8046809: vm/mlvm/meth/stress/compiler/deoptimize CodeCache is full.
anoll
parents:
26834
diff
changeset
|
2040 |
// Dedicated thread to sweep the code cache |
04e6f914cce1
8046809: vm/mlvm/meth/stress/compiler/deoptimize CodeCache is full.
anoll
parents:
26834
diff
changeset
|
2041 |
class CodeCacheSweeperThread : public JavaThread { |
38133
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
37474
diff
changeset
|
2042 |
CompiledMethod* _scanned_compiled_method; // nmethod being scanned by the sweeper |
27420
04e6f914cce1
8046809: vm/mlvm/meth/stress/compiler/deoptimize CodeCache is full.
anoll
parents:
26834
diff
changeset
|
2043 |
public: |
04e6f914cce1
8046809: vm/mlvm/meth/stress/compiler/deoptimize CodeCache is full.
anoll
parents:
26834
diff
changeset
|
2044 |
CodeCacheSweeperThread(); |
04e6f914cce1
8046809: vm/mlvm/meth/stress/compiler/deoptimize CodeCache is full.
anoll
parents:
26834
diff
changeset
|
2045 |
// Track the nmethod currently being scanned by the sweeper |
38133
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
37474
diff
changeset
|
2046 |
void set_scanned_compiled_method(CompiledMethod* cm) { |
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
37474
diff
changeset
|
2047 |
assert(_scanned_compiled_method == NULL || cm == NULL, "should reset to NULL before writing a new value"); |
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
37474
diff
changeset
|
2048 |
_scanned_compiled_method = cm; |
27420
04e6f914cce1
8046809: vm/mlvm/meth/stress/compiler/deoptimize CodeCache is full.
anoll
parents:
26834
diff
changeset
|
2049 |
} |
04e6f914cce1
8046809: vm/mlvm/meth/stress/compiler/deoptimize CodeCache is full.
anoll
parents:
26834
diff
changeset
|
2050 |
|
27433
b276c91c1264
8062284: Sweeper thread should not be visible when calling Thread.getAllStackTraces()
anoll
parents:
27429
diff
changeset
|
2051 |
// Hide sweeper thread from external view. |
b276c91c1264
8062284: Sweeper thread should not be visible when calling Thread.getAllStackTraces()
anoll
parents:
27429
diff
changeset
|
2052 |
bool is_hidden_from_external_view() const { return true; } |
b276c91c1264
8062284: Sweeper thread should not be visible when calling Thread.getAllStackTraces()
anoll
parents:
27429
diff
changeset
|
2053 |
|
27420
04e6f914cce1
8046809: vm/mlvm/meth/stress/compiler/deoptimize CodeCache is full.
anoll
parents:
26834
diff
changeset
|
2054 |
bool is_Code_cache_sweeper_thread() const { return true; } |
37288
a31d47bbbdf6
8074553: Crash with assert(!is_unloaded()) failed: should not call follow on unloaded nmethod
thartmann
parents:
36384
diff
changeset
|
2055 |
|
38133
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
37474
diff
changeset
|
2056 |
// Prevent GC from unloading _scanned_compiled_method |
38074
8475fdc6dcc3
8154580: Save mirror in interpreter frame to enable cleanups of CLDClosure
coleenp
parents:
37474
diff
changeset
|
2057 |
void oops_do(OopClosure* f, CodeBlobClosure* cf); |
37288
a31d47bbbdf6
8074553: Crash with assert(!is_unloaded()) failed: should not call follow on unloaded nmethod
thartmann
parents:
36384
diff
changeset
|
2058 |
void nmethods_do(CodeBlobClosure* cf); |
27420
04e6f914cce1
8046809: vm/mlvm/meth/stress/compiler/deoptimize CodeCache is full.
anoll
parents:
26834
diff
changeset
|
2059 |
}; |
04e6f914cce1
8046809: vm/mlvm/meth/stress/compiler/deoptimize CodeCache is full.
anoll
parents:
26834
diff
changeset
|
2060 |
|
1 | 2061 |
// A thread used for Compilation. |
2062 |
class CompilerThread : public JavaThread { |
|
2063 |
friend class VMStructs; |
|
2064 |
private: |
|
2065 |
CompilerCounters* _counters; |
|
2066 |
||
48428 | 2067 |
ciEnv* _env; |
2068 |
CompileLog* _log; |
|
2069 |
CompileTask* volatile _task; // print_threads_compiling can read this concurrently. |
|
2070 |
CompileQueue* _queue; |
|
2071 |
BufferBlob* _buffer_blob; |
|
1 | 2072 |
|
48428 | 2073 |
AbstractCompiler* _compiler; |
9942
2e86734ba620
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
9437
diff
changeset
|
2074 |
|
1 | 2075 |
public: |
2076 |
||
2077 |
static CompilerThread* current(); |
|
2078 |
||
2079 |
CompilerThread(CompileQueue* queue, CompilerCounters* counters); |
|
2080 |
||
2081 |
bool is_Compiler_thread() const { return true; } |
|
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
2082 |
|
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
2083 |
virtual bool can_call_java() const; |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
2084 |
|
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
2085 |
// Hide native compiler threads from external view. |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
2086 |
bool is_hidden_from_external_view() const { return !can_call_java(); } |
1 | 2087 |
|
20707
b3b658c6d1f8
8023014: CodeSweeperSweepNoFlushTest.java fails with HS crash
anoll
parents:
20703
diff
changeset
|
2088 |
void set_compiler(AbstractCompiler* c) { _compiler = c; } |
b3b658c6d1f8
8023014: CodeSweeperSweepNoFlushTest.java fails with HS crash
anoll
parents:
20703
diff
changeset
|
2089 |
AbstractCompiler* compiler() const { return _compiler; } |
b3b658c6d1f8
8023014: CodeSweeperSweepNoFlushTest.java fails with HS crash
anoll
parents:
20703
diff
changeset
|
2090 |
|
b3b658c6d1f8
8023014: CodeSweeperSweepNoFlushTest.java fails with HS crash
anoll
parents:
20703
diff
changeset
|
2091 |
CompileQueue* queue() const { return _queue; } |
b3b658c6d1f8
8023014: CodeSweeperSweepNoFlushTest.java fails with HS crash
anoll
parents:
20703
diff
changeset
|
2092 |
CompilerCounters* counters() const { return _counters; } |
1 | 2093 |
|
2094 |
// Get/set the thread's compilation environment. |
|
2095 |
ciEnv* env() { return _env; } |
|
2096 |
void set_env(ciEnv* env) { _env = env; } |
|
2097 |
||
20707
b3b658c6d1f8
8023014: CodeSweeperSweepNoFlushTest.java fails with HS crash
anoll
parents:
20703
diff
changeset
|
2098 |
BufferBlob* get_buffer_blob() const { return _buffer_blob; } |
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
2099 |
void set_buffer_blob(BufferBlob* b) { _buffer_blob = b; } |
5707 | 2100 |
|
1 | 2101 |
// Get/set the thread's logging information |
2102 |
CompileLog* log() { return _log; } |
|
2103 |
void init_log(CompileLog* log) { |
|
2104 |
// Set once, for good. |
|
2105 |
assert(_log == NULL, "set only once"); |
|
2106 |
_log = log; |
|
2107 |
} |
|
2108 |
||
2109 |
#ifndef PRODUCT |
|
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
2110 |
private: |
1 | 2111 |
IdealGraphPrinter *_ideal_graph_printer; |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
2112 |
public: |
27420
04e6f914cce1
8046809: vm/mlvm/meth/stress/compiler/deoptimize CodeCache is full.
anoll
parents:
26834
diff
changeset
|
2113 |
IdealGraphPrinter *ideal_graph_printer() { return _ideal_graph_printer; } |
04e6f914cce1
8046809: vm/mlvm/meth/stress/compiler/deoptimize CodeCache is full.
anoll
parents:
26834
diff
changeset
|
2114 |
void set_ideal_graph_printer(IdealGraphPrinter *n) { _ideal_graph_printer = n; } |
1 | 2115 |
#endif |
2116 |
||
2117 |
// Get/set the thread's current task |
|
27420
04e6f914cce1
8046809: vm/mlvm/meth/stress/compiler/deoptimize CodeCache is full.
anoll
parents:
26834
diff
changeset
|
2118 |
CompileTask* task() { return _task; } |
04e6f914cce1
8046809: vm/mlvm/meth/stress/compiler/deoptimize CodeCache is full.
anoll
parents:
26834
diff
changeset
|
2119 |
void set_task(CompileTask* task) { _task = task; } |
1 | 2120 |
}; |
2121 |
||
2122 |
inline CompilerThread* CompilerThread::current() { |
|
2123 |
return JavaThread::current()->as_CompilerThread(); |
|
2124 |
} |
|
2125 |
||
2126 |
// The active thread queue. It also keeps track of the current used |
|
2127 |
// thread priorities. |
|
2128 |
class Threads: AllStatic { |
|
2129 |
friend class VMStructs; |
|
2130 |
private: |
|
48312
2a1413298af0
8191789: migrate more Thread-SMR stuff from thread.[ch]pp -> threadSMR.[ch]pp
dcubed
parents:
48173
diff
changeset
|
2131 |
static JavaThread* _thread_list; |
2a1413298af0
8191789: migrate more Thread-SMR stuff from thread.[ch]pp -> threadSMR.[ch]pp
dcubed
parents:
48173
diff
changeset
|
2132 |
static int _number_of_threads; |
2a1413298af0
8191789: migrate more Thread-SMR stuff from thread.[ch]pp -> threadSMR.[ch]pp
dcubed
parents:
48173
diff
changeset
|
2133 |
static int _number_of_non_daemon_threads; |
2a1413298af0
8191789: migrate more Thread-SMR stuff from thread.[ch]pp -> threadSMR.[ch]pp
dcubed
parents:
48173
diff
changeset
|
2134 |
static int _return_code; |
2a1413298af0
8191789: migrate more Thread-SMR stuff from thread.[ch]pp -> threadSMR.[ch]pp
dcubed
parents:
48173
diff
changeset
|
2135 |
static int _thread_claim_parity; |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
2136 |
#ifdef ASSERT |
48312
2a1413298af0
8191789: migrate more Thread-SMR stuff from thread.[ch]pp -> threadSMR.[ch]pp
dcubed
parents:
48173
diff
changeset
|
2137 |
static bool _vm_complete; |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
2138 |
#endif |
1 | 2139 |
|
22539
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
20707
diff
changeset
|
2140 |
static void initialize_java_lang_classes(JavaThread* main_thread, TRAPS); |
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
20707
diff
changeset
|
2141 |
static void initialize_jsr292_core_classes(TRAPS); |
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
2142 |
|
1 | 2143 |
public: |
2144 |
// Thread management |
|
2145 |
// force_daemon is a concession to JNI, where we may need to add a |
|
2146 |
// thread to the thread list before allocating its thread object |
|
2147 |
static void add(JavaThread* p, bool force_daemon = false); |
|
2148 |
static void remove(JavaThread* p); |
|
2149 |
static void threads_do(ThreadClosure* tc); |
|
47637
87141990dde5
8185580: Refactor Threads::possibly_parallel_oops_do() to use Threads::parallel_java_threads_do()
rkennke
parents:
47216
diff
changeset
|
2150 |
static void possibly_parallel_threads_do(bool is_par, ThreadClosure* tc); |
1 | 2151 |
|
2152 |
// Initializes the vm and creates the vm thread |
|
2153 |
static jint create_vm(JavaVMInitArgs* args, bool* canTryAgain); |
|
2154 |
static void convert_vm_init_libraries_to_agents(); |
|
2155 |
static void create_vm_init_libraries(); |
|
2156 |
static void create_vm_init_agents(); |
|
2157 |
static void shutdown_vm_agents(); |
|
2158 |
static bool destroy_vm(); |
|
2159 |
// Supported VM versions via JNI |
|
2160 |
// Includes JNI_VERSION_1_1 |
|
2161 |
static jboolean is_supported_jni_version_including_1_1(jint version); |
|
2162 |
// Does not include JNI_VERSION_1_1 |
|
2163 |
static jboolean is_supported_jni_version(jint version); |
|
2164 |
||
30153
596ed88949ad
8076289: Move the StrongRootsScope out of SharedHeap
brutisso
parents:
30147
diff
changeset
|
2165 |
// The "thread claim parity" provides a way for threads to be claimed |
596ed88949ad
8076289: Move the StrongRootsScope out of SharedHeap
brutisso
parents:
30147
diff
changeset
|
2166 |
// by parallel worker tasks. |
596ed88949ad
8076289: Move the StrongRootsScope out of SharedHeap
brutisso
parents:
30147
diff
changeset
|
2167 |
// |
596ed88949ad
8076289: Move the StrongRootsScope out of SharedHeap
brutisso
parents:
30147
diff
changeset
|
2168 |
// Each thread contains a a "parity" field. A task will claim the |
596ed88949ad
8076289: Move the StrongRootsScope out of SharedHeap
brutisso
parents:
30147
diff
changeset
|
2169 |
// thread only if its parity field is the same as the global parity, |
596ed88949ad
8076289: Move the StrongRootsScope out of SharedHeap
brutisso
parents:
30147
diff
changeset
|
2170 |
// which is updated by calling change_thread_claim_parity(). |
596ed88949ad
8076289: Move the StrongRootsScope out of SharedHeap
brutisso
parents:
30147
diff
changeset
|
2171 |
// |
596ed88949ad
8076289: Move the StrongRootsScope out of SharedHeap
brutisso
parents:
30147
diff
changeset
|
2172 |
// For this to work change_thread_claim_parity() needs to be called |
596ed88949ad
8076289: Move the StrongRootsScope out of SharedHeap
brutisso
parents:
30147
diff
changeset
|
2173 |
// exactly once in sequential code before starting parallel tasks |
596ed88949ad
8076289: Move the StrongRootsScope out of SharedHeap
brutisso
parents:
30147
diff
changeset
|
2174 |
// that should claim threads. |
596ed88949ad
8076289: Move the StrongRootsScope out of SharedHeap
brutisso
parents:
30147
diff
changeset
|
2175 |
// |
596ed88949ad
8076289: Move the StrongRootsScope out of SharedHeap
brutisso
parents:
30147
diff
changeset
|
2176 |
// New threads get their parity set to 0 and change_thread_claim_parity() |
596ed88949ad
8076289: Move the StrongRootsScope out of SharedHeap
brutisso
parents:
30147
diff
changeset
|
2177 |
// never set the global parity to 0. |
29802
d485440c958a
8076225: Move the thread claim parity from SharedHeap to Thread
mgerdin
parents:
29576
diff
changeset
|
2178 |
static int thread_claim_parity() { return _thread_claim_parity; } |
d485440c958a
8076225: Move the thread claim parity from SharedHeap to Thread
mgerdin
parents:
29576
diff
changeset
|
2179 |
static void change_thread_claim_parity(); |
30174 | 2180 |
static void assert_all_threads_claimed() NOT_DEBUG_RETURN; |
1 | 2181 |
|
2182 |
// Apply "f->do_oop" to all root oops in all threads. |
|
2183 |
// This version may only be called by sequential code. |
|
38074
8475fdc6dcc3
8154580: Save mirror in interpreter frame to enable cleanups of CLDClosure
coleenp
parents:
37474
diff
changeset
|
2184 |
static void oops_do(OopClosure* f, CodeBlobClosure* cf); |
1 | 2185 |
// This version may be called by sequential or parallel code. |
38074
8475fdc6dcc3
8154580: Save mirror in interpreter frame to enable cleanups of CLDClosure
coleenp
parents:
37474
diff
changeset
|
2186 |
static void possibly_parallel_oops_do(bool is_par, OopClosure* f, CodeBlobClosure* cf); |
1 | 2187 |
// This creates a list of GCTasks, one per thread. |
2188 |
static void create_thread_roots_tasks(GCTaskQueue* q); |
|
2189 |
// This creates a list of GCTasks, one per thread, for marking objects. |
|
2190 |
static void create_thread_roots_marking_tasks(GCTaskQueue* q); |
|
2191 |
||
2192 |
// Apply "f->do_oop" to roots in all threads that |
|
2193 |
// are part of compiled frames |
|
3908
24b55ad4c228
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
3261
diff
changeset
|
2194 |
static void compiled_frame_oops_do(OopClosure* f, CodeBlobClosure* cf); |
1 | 2195 |
|
2196 |
static void convert_hcode_pointers(); |
|
2197 |
static void restore_hcode_pointers(); |
|
2198 |
||
2199 |
// Sweeper |
|
3908
24b55ad4c228
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
3261
diff
changeset
|
2200 |
static void nmethods_do(CodeBlobClosure* cf); |
1 | 2201 |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
2202 |
// RedefineClasses support |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
2203 |
static void metadata_do(void f(Metadata*)); |
29576
c223b0a9872e
8061205: MetadataOnStackMark only needs to walk code cache during class redefinition
coleenp
parents:
29362
diff
changeset
|
2204 |
static void metadata_handles_do(void f(Metadata*)); |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
2205 |
|
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
2206 |
#ifdef ASSERT |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
2207 |
static bool is_vm_complete() { return _vm_complete; } |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
2208 |
#endif |
1 | 2209 |
|
2210 |
// Verification |
|
2211 |
static void verify(); |
|
2212 |
static void print_on(outputStream* st, bool print_stacks, bool internal_format, bool print_concurrent_locks); |
|
2213 |
static void print(bool print_stacks, bool internal_format) { |
|
2214 |
// this function is only used by debug.cpp |
|
2215 |
print_on(tty, print_stacks, internal_format, false /* no concurrent lock printed */); |
|
2216 |
} |
|
2217 |
static void print_on_error(outputStream* st, Thread* current, char* buf, int buflen); |
|
37474 | 2218 |
static void print_on_error(Thread* this_thread, outputStream* st, Thread* current, char* buf, |
2219 |
int buflen, bool* found_current); |
|
35825
7c7652ee137b
8063112: Compiler diagnostic commands should have locking instead of safepoint
neliasso
parents:
35495
diff
changeset
|
2220 |
static void print_threads_compiling(outputStream* st, char* buf, int buflen); |
1 | 2221 |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
2222 |
// Get Java threads that are waiting to enter a monitor. |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
2223 |
static GrowableArray<JavaThread*>* get_pending_threads(ThreadsList * t_list, |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
2224 |
int count, address monitor); |
1 | 2225 |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
2226 |
// Get owning Java thread from the monitor's owner field. |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
2227 |
static JavaThread *owning_thread_from_monitor_owner(ThreadsList * t_list, |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
2228 |
address owner); |
1 | 2229 |
|
2230 |
// Number of threads on the active threads list |
|
2231 |
static int number_of_threads() { return _number_of_threads; } |
|
2232 |
// Number of non-daemon threads on the active threads list |
|
2233 |
static int number_of_non_daemon_threads() { return _number_of_non_daemon_threads; } |
|
2234 |
||
2235 |
// Deoptimizes all frames tied to marked nmethods |
|
2236 |
static void deoptimized_wrt_marked_nmethods(); |
|
2237 |
}; |
|
2238 |
||
2239 |
||
2240 |
// Thread iterator |
|
2241 |
class ThreadClosure: public StackObj { |
|
2242 |
public: |
|
2243 |
virtual void do_thread(Thread* thread) = 0; |
|
2244 |
}; |
|
2245 |
||
2246 |
class SignalHandlerMark: public StackObj { |
|
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
2247 |
private: |
1 | 2248 |
Thread* _thread; |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
2249 |
public: |
1 | 2250 |
SignalHandlerMark(Thread* t) { |
2251 |
_thread = t; |
|
2252 |
if (_thread) _thread->enter_signal_handler(); |
|
2253 |
} |
|
2254 |
~SignalHandlerMark() { |
|
2255 |
if (_thread) _thread->leave_signal_handler(); |
|
2256 |
_thread = NULL; |
|
2257 |
} |
|
2258 |
}; |
|
2259 |
||
7397 | 2260 |
|
2261 |
#endif // SHARE_VM_RUNTIME_THREAD_HPP |