author | mr |
Tue, 29 Oct 2019 13:52:04 -0700 | |
changeset 58850 | f4290bf1cc21 |
parent 58488 | 165b193b30dd |
child 58495 | 465ba4fefe62 |
child 58679 | 9c3209ff7550 |
child 59132 | 189f47d990b5 |
permissions | -rw-r--r-- |
1 | 1 |
/* |
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* Copyright (c) 1997, 2019, 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_RUNTIME_THREAD_HPP |
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#define SHARE_RUNTIME_THREAD_HPP |
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#include "jni.h" |
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#include "code/compiledMethod.hpp" |
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#include "gc/shared/gcThreadLocalData.hpp" |
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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/globals.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/stubRoutines.hpp" |
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#include "runtime/threadHeapSampler.hpp" |
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#include "runtime/threadLocalStorage.hpp" |
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#include "runtime/threadStatisticalInfo.hpp" |
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#include "runtime/unhandledOops.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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#ifdef ZERO |
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# include "stack_zero.hpp" |
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#endif |
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#if INCLUDE_JFR |
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#include "jfr/support/jfrThreadExtension.hpp" |
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#endif |
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||
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class SafeThreadsListPtr; |
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class ThreadSafepointState; |
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class ThreadsList; |
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class ThreadsSMRSupport; |
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class JvmtiRawMonitor; |
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class JvmtiThreadState; |
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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 MonitorInfo; |
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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 vframe; |
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class javaVFrame; |
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class DeoptResourceMark; |
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class jvmtiDeferredLocalVariableSet; |
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class ThreadClosure; |
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class ICRefillVerifier; |
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class IdealGraphPrinter; |
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class JVMCIEnv; |
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class JVMCIPrimitiveArray; |
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class Metadata; |
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class ResourceArea; |
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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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// - JavaThread |
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// - various subclasses eg CompilerThread, ServiceThread |
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// - NonJavaThread |
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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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// - WatcherThread |
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// - JfrThreadSampler |
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// |
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// All Thread subclasses must be either JavaThread or NonJavaThread. |
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// This means !t->is_Java_thread() iff t is a NonJavaThread, or t is |
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// a partially constructed/destroyed Thread. |
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// Thread execution sequence and actions: |
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// All threads: |
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// - thread_native_entry // per-OS native entry point |
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// - stack initialization |
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// - other OS-level initialization (signal masks etc) |
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// - handshake with creating thread (if not started suspended) |
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// - this->call_run() // common shared entry point |
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// - shared common initialization |
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// - this->pre_run() // virtual per-thread-type initialization |
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// - this->run() // virtual per-thread-type "main" logic |
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// - shared common tear-down |
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// - this->post_run() // virtual per-thread-type tear-down |
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// - // 'this' no longer referenceable |
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// - OS-level tear-down (minimal) |
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// - final logging |
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// |
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// For JavaThread: |
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// - this->run() // virtual but not normally overridden |
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// - this->thread_main_inner() // extra call level to ensure correct stack calculations |
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// - this->entry_point() // set differently for each kind of JavaThread |
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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 Thread* _thr_current; |
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#endif |
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// Thread local data area available to the GC. The internal |
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// structure and contents of this data area is GC-specific. |
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// Only GC and GC barrier code should access this data area. |
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GCThreadLocalData _gc_data; |
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public: |
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static ByteSize gc_data_offset() { |
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return byte_offset_of(Thread, _gc_data); |
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} |
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|
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template <typename T> T* gc_data() { |
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STATIC_ASSERT(sizeof(T) <= sizeof(_gc_data)); |
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return reinterpret_cast<T*>(&_gc_data); |
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} |
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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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DEBUG_ONLY(static Thread* _starting_thread;) |
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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 SafeThreadsListPtr; // for _threads_list_ptr, cmpxchg_threads_hazard_ptr(), {dec_,inc_,}nested_threads_hazard_ptr_cnt(), {g,s}et_threads_hazard_ptr(), inc_nested_handle_cnt(), tag_hazard_ptr() access |
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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_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 ThreadsSMRSupport; // for _nested_threads_hazard_ptr_cnt, _threads_hazard_ptr, _threads_list_ptr access |
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ThreadsList* volatile _threads_hazard_ptr; |
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SafeThreadsListPtr* _threads_list_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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188 |
static bool is_hazard_ptr_tagged(ThreadsList* list) { |
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189 |
return (intptr_t(list) & intptr_t(1)) == intptr_t(1); |
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190 |
} |
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191 |
static ThreadsList* tag_hazard_ptr(ThreadsList* list) { |
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192 |
return (ThreadsList*)(intptr_t(list) | intptr_t(1)); |
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193 |
} |
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194 |
static ThreadsList* untag_hazard_ptr(ThreadsList* list) { |
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195 |
return (ThreadsList*)(intptr_t(list) & ~intptr_t(1)); |
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196 |
} |
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197 |
// This field is enabled via -XX:+EnableThreadSMRStatistics: |
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198 |
uint _nested_threads_hazard_ptr_cnt; |
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199 |
void dec_nested_threads_hazard_ptr_cnt() { |
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200 |
assert(_nested_threads_hazard_ptr_cnt != 0, "mismatched {dec,inc}_nested_threads_hazard_ptr_cnt()"); |
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201 |
_nested_threads_hazard_ptr_cnt--; |
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202 |
} |
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203 |
void inc_nested_threads_hazard_ptr_cnt() { |
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204 |
_nested_threads_hazard_ptr_cnt++; |
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205 |
} |
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206 |
uint nested_threads_hazard_ptr_cnt() { |
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207 |
return _nested_threads_hazard_ptr_cnt; |
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208 |
} |
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209 |
|
1 | 210 |
public: |
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211 |
void* operator new(size_t size) throw() { return allocate(size, true); } |
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212 |
void* operator new(size_t size, const std::nothrow_t& nothrow_constant) throw() { |
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213 |
return allocate(size, false); } |
1 | 214 |
void operator delete(void* p); |
13195 | 215 |
|
216 |
protected: |
|
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217 |
static void* allocate(size_t size, bool throw_excpt, MEMFLAGS flags = mtThread); |
1 | 218 |
private: |
219 |
||
220 |
// *************************************************************** |
|
221 |
// Suspend and resume support |
|
222 |
// *************************************************************** |
|
223 |
// |
|
224 |
// VM suspend/resume no longer exists - it was once used for various |
|
225 |
// things including safepoints but was deprecated and finally removed |
|
226 |
// in Java 7. Because VM suspension was considered "internal" Java-level |
|
227 |
// suspension was considered "external", and this legacy naming scheme |
|
228 |
// remains. |
|
229 |
// |
|
230 |
// External suspend/resume requests come from JVM_SuspendThread, |
|
231 |
// JVM_ResumeThread, JVMTI SuspendThread, and finally JVMTI |
|
232 |
// ResumeThread. External |
|
233 |
// suspend requests cause _external_suspend to be set and external |
|
234 |
// resume requests cause _external_suspend to be cleared. |
|
235 |
// External suspend requests do not nest on top of other external |
|
236 |
// suspend requests. The higher level APIs reject suspend requests |
|
237 |
// for already suspended threads. |
|
238 |
// |
|
239 |
// The external_suspend |
|
240 |
// flag is checked by has_special_runtime_exit_condition() and java thread |
|
241 |
// will self-suspend when handle_special_runtime_exit_condition() is |
|
242 |
// called. Most uses of the _thread_blocked state in JavaThreads are |
|
243 |
// considered the same as being externally suspended; if the blocking |
|
244 |
// condition lifts, the JavaThread will self-suspend. Other places |
|
245 |
// where VM checks for external_suspend include: |
|
246 |
// + mutex granting (do not enter monitors when thread is suspended) |
|
247 |
// + state transitions from _thread_in_native |
|
248 |
// |
|
249 |
// In general, java_suspend() does not wait for an external suspend |
|
250 |
// request to complete. When it returns, the only guarantee is that |
|
251 |
// the _external_suspend field is true. |
|
252 |
// |
|
253 |
// wait_for_ext_suspend_completion() is used to wait for an external |
|
254 |
// suspend request to complete. External suspend requests are usually |
|
255 |
// followed by some other interface call that requires the thread to |
|
256 |
// be quiescent, e.g., GetCallTrace(). By moving the "wait time" into |
|
257 |
// the interface that requires quiescence, we give the JavaThread a |
|
258 |
// chance to self-suspend before we need it to be quiescent. This |
|
259 |
// improves overall suspend/query performance. |
|
260 |
// |
|
261 |
// _suspend_flags controls the behavior of java_ suspend/resume. |
|
262 |
// It must be set under the protection of SR_lock. Read from the flag is |
|
263 |
// OK without SR_lock as long as the value is only used as a hint. |
|
264 |
// (e.g., check _external_suspend first without lock and then recheck |
|
265 |
// inside SR_lock and finish the suspension) |
|
266 |
// |
|
267 |
// _suspend_flags is also overloaded for other "special conditions" so |
|
268 |
// that a single check indicates whether any special action is needed |
|
269 |
// eg. for async exceptions. |
|
270 |
// ------------------------------------------------------------------- |
|
271 |
// Notes: |
|
272 |
// 1. The suspend/resume logic no longer uses ThreadState in OSThread |
|
273 |
// but we still update its value to keep other part of the system (mainly |
|
274 |
// JVMTI) happy. ThreadState is legacy code (see notes in |
|
275 |
// osThread.hpp). |
|
276 |
// |
|
277 |
// 2. It would be more natural if set_external_suspend() is private and |
|
278 |
// part of java_suspend(), but that probably would affect the suspend/query |
|
279 |
// performance. Need more investigation on this. |
|
280 |
||
281 |
// suspend/resume lock: used for self-suspend |
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282 |
Monitor* _SR_lock; |
1 | 283 |
|
284 |
protected: |
|
285 |
enum SuspendFlags { |
|
286 |
// NOTE: avoid using the sign-bit as cc generates different test code |
|
287 |
// when the sign-bit is used, and sometimes incorrectly - see CR 6398077 |
|
288 |
||
289 |
_external_suspend = 0x20000000U, // thread is asked to self suspend |
|
290 |
_ext_suspended = 0x40000000U, // thread has self-suspended |
|
291 |
||
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292 |
_has_async_exception = 0x00000001U, // there is a pending async exception |
46643 | 293 |
_critical_native_unlock = 0x00000002U, // Must call back to unlock JNI critical lock |
294 |
||
295 |
_trace_flag = 0x00000004U // call tracing backend |
|
1 | 296 |
}; |
297 |
||
298 |
// various suspension related flags - atomically updated |
|
299 |
// overloaded for async exception checking in check_special_condition_for_native_trans. |
|
300 |
volatile uint32_t _suspend_flags; |
|
301 |
||
302 |
private: |
|
303 |
int _num_nested_signal; |
|
304 |
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305 |
DEBUG_ONLY(bool _suspendible_thread;) |
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306 |
|
1 | 307 |
public: |
308 |
void enter_signal_handler() { _num_nested_signal++; } |
|
309 |
void leave_signal_handler() { _num_nested_signal--; } |
|
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310 |
bool is_inside_signal_handler() const { return _num_nested_signal > 0; } |
1 | 311 |
|
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312 |
// Determines if a heap allocation failure will be retried |
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313 |
// (e.g., by deoptimizing and re-executing in the interpreter). |
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314 |
// In this case, the failed allocation must raise |
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315 |
// Universe::out_of_memory_error_retry() and omit side effects |
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316 |
// such as JVMTI events and handling -XX:+HeapDumpOnOutOfMemoryError |
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317 |
// and -XX:OnOutOfMemoryError. |
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318 |
virtual bool in_retryable_allocation() const { return false; } |
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319 |
|
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|
320 |
#ifdef ASSERT |
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|
321 |
void set_suspendible_thread() { |
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322 |
_suspendible_thread = true; |
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323 |
} |
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|
324 |
|
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325 |
void clear_suspendible_thread() { |
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|
326 |
_suspendible_thread = false; |
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327 |
} |
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|
328 |
|
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329 |
bool is_suspendible_thread() { return _suspendible_thread; } |
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|
330 |
#endif |
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|
331 |
|
1 | 332 |
private: |
333 |
// Active_handles points to a block of handles |
|
334 |
JNIHandleBlock* _active_handles; |
|
335 |
||
336 |
// One-element thread local free list |
|
337 |
JNIHandleBlock* _free_handle_block; |
|
338 |
||
339 |
// Point to the last handle mark |
|
340 |
HandleMark* _last_handle_mark; |
|
341 |
||
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|
342 |
// Claim value for parallel iteration over threads. |
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|
343 |
uintx _threads_do_token; |
1 | 344 |
|
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|
345 |
// Support for GlobalCounter |
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346 |
private: |
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347 |
volatile uintx _rcu_counter; |
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|
348 |
public: |
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|
349 |
volatile uintx* get_rcu_counter() { |
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|
350 |
return &_rcu_counter; |
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|
351 |
} |
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|
352 |
|
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|
353 |
public: |
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|
354 |
void set_last_handle_mark(HandleMark* mark) { _last_handle_mark = mark; } |
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|
355 |
HandleMark* last_handle_mark() const { return _last_handle_mark; } |
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|
356 |
private: |
1 | 357 |
|
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|
358 |
#ifdef ASSERT |
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|
359 |
ICRefillVerifier* _missed_ic_stub_refill_verifier; |
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|
360 |
|
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361 |
public: |
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|
362 |
ICRefillVerifier* missed_ic_stub_refill_verifier() { |
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|
363 |
return _missed_ic_stub_refill_verifier; |
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|
364 |
} |
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|
365 |
|
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|
366 |
void set_missed_ic_stub_refill_verifier(ICRefillVerifier* verifier) { |
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|
367 |
_missed_ic_stub_refill_verifier = verifier; |
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|
368 |
} |
57745 | 369 |
#endif // ASSERT |
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|
370 |
|
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371 |
private: |
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|
372 |
|
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|
373 |
// Debug support for checking if code allows safepoints or not. |
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|
374 |
// Safepoints in the VM can happen because of allocation, invoking a VM operation, or blocking on |
1 | 375 |
// mutex, or blocking on an object synchronizer (Java locking). |
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|
376 |
// If _no_safepoint_count is non-zero, then an assertion failure will happen in any of |
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|
377 |
// the above cases. |
1 | 378 |
// |
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|
379 |
// The class NoSafepointVerifier is used to set this counter. |
1 | 380 |
// |
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changeset
|
381 |
NOT_PRODUCT(int _no_safepoint_count;) // If 0, thread allow a safepoint to happen |
1 | 382 |
|
57745 | 383 |
private: |
2995
d8283445992a
6820167: GCALotAtAllSafepoints + FullGCALot(ScavengeALot) options crash JVM
ysr
parents:
2526
diff
changeset
|
384 |
// Used by SkipGCALot class. |
7724
a92d706dbdd5
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
7399
diff
changeset
|
385 |
NOT_PRODUCT(bool _skip_gcalot;) // Should we elide gc-a-lot? |
2995
d8283445992a
6820167: GCALotAtAllSafepoints + FullGCALot(ScavengeALot) options crash JVM
ysr
parents:
2526
diff
changeset
|
386 |
|
57745 | 387 |
friend class GCLocker; |
35492
c8c0273e6b91
8146690: Make all classes in GC follow the naming convention.
david
parents:
35481
diff
changeset
|
388 |
friend class NoSafepointVerifier; |
c8c0273e6b91
8146690: Make all classes in GC follow the naming convention.
david
parents:
35481
diff
changeset
|
389 |
friend class PauseNoSafepointVerifier; |
1 | 390 |
|
47881
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
391 |
volatile void* _polling_page; // Thread local polling page |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
392 |
|
7724
a92d706dbdd5
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
7399
diff
changeset
|
393 |
ThreadLocalAllocBuffer _tlab; // Thread-local eden |
a92d706dbdd5
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
7399
diff
changeset
|
394 |
jlong _allocated_bytes; // Cumulative number of bytes allocated on |
a92d706dbdd5
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
7399
diff
changeset
|
395 |
// the Java heap |
50578
e2a7f431f65c
8203394: Implementation of JEP 331: Low-Overhead Heap Profiling
jcbeyler
parents:
50113
diff
changeset
|
396 |
ThreadHeapSampler _heap_sampler; // For use when sampling the memory. |
1 | 397 |
|
50785
d1b24f2ceca5
8200720: Print additional information in thread dump (times, allocated bytes etc.)
ghaug
parents:
50578
diff
changeset
|
398 |
ThreadStatisticalInfo _statistical_info; // Statistics about the thread |
d1b24f2ceca5
8200720: Print additional information in thread dump (times, allocated bytes etc.)
ghaug
parents:
50578
diff
changeset
|
399 |
|
50113 | 400 |
JFR_ONLY(DEFINE_THREAD_LOCAL_FIELD_JFR;) // Thread-local data for jfr |
11480
1bf714e8adb4
7115199: Add event tracing hooks and Java Flight Recorder infrastructure
phh
parents:
10739
diff
changeset
|
401 |
|
7724
a92d706dbdd5
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
7399
diff
changeset
|
402 |
int _vm_operation_started_count; // VM_Operation support |
a92d706dbdd5
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
7399
diff
changeset
|
403 |
int _vm_operation_completed_count; // VM_Operation support |
1 | 404 |
|
7724
a92d706dbdd5
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
7399
diff
changeset
|
405 |
ObjectMonitor* _current_pending_monitor; // ObjectMonitor this thread |
a92d706dbdd5
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
7399
diff
changeset
|
406 |
// is waiting to lock |
a92d706dbdd5
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
7399
diff
changeset
|
407 |
bool _current_pending_monitor_is_from_java; // locking is from Java code |
58488
165b193b30dd
8231289: Disentangle JvmtiRawMonitor from ObjectMonitor and clean it up
dholmes
parents:
58291
diff
changeset
|
408 |
JvmtiRawMonitor* _current_pending_raw_monitor; // JvmtiRawMonitor this thread |
165b193b30dd
8231289: Disentangle JvmtiRawMonitor from ObjectMonitor and clean it up
dholmes
parents:
58291
diff
changeset
|
409 |
// is waiting to lock |
165b193b30dd
8231289: Disentangle JvmtiRawMonitor from ObjectMonitor and clean it up
dholmes
parents:
58291
diff
changeset
|
410 |
|
1 | 411 |
|
412 |
// ObjectMonitor on which this thread called Object.wait() |
|
413 |
ObjectMonitor* _current_waiting_monitor; |
|
414 |
||
57906
e17f768b3b71
8230184: rename, whitespace, indent and comments changes in preparation for lock free Monitor lists
dcubed
parents:
57840
diff
changeset
|
415 |
// Per-thread ObjectMonitor lists: |
1 | 416 |
public: |
57906
e17f768b3b71
8230184: rename, whitespace, indent and comments changes in preparation for lock free Monitor lists
dcubed
parents:
57840
diff
changeset
|
417 |
ObjectMonitor* om_free_list; // SLL of free ObjectMonitors |
e17f768b3b71
8230184: rename, whitespace, indent and comments changes in preparation for lock free Monitor lists
dcubed
parents:
57840
diff
changeset
|
418 |
int om_free_count; // # on om_free_list |
e17f768b3b71
8230184: rename, whitespace, indent and comments changes in preparation for lock free Monitor lists
dcubed
parents:
57840
diff
changeset
|
419 |
int om_free_provision; // # to try to allocate next |
e17f768b3b71
8230184: rename, whitespace, indent and comments changes in preparation for lock free Monitor lists
dcubed
parents:
57840
diff
changeset
|
420 |
ObjectMonitor* om_in_use_list; // SLL of in-use ObjectMonitors |
e17f768b3b71
8230184: rename, whitespace, indent and comments changes in preparation for lock free Monitor lists
dcubed
parents:
57840
diff
changeset
|
421 |
int om_in_use_count; // # on om_in_use_list |
1 | 422 |
|
12108
b2ee55606008
7150390: JFR test crashed on assert(_jni_lock_count == count) failed: must be equal
never
parents:
11637
diff
changeset
|
423 |
#ifdef ASSERT |
b2ee55606008
7150390: JFR test crashed on assert(_jni_lock_count == count) failed: must be equal
never
parents:
11637
diff
changeset
|
424 |
private: |
53775 | 425 |
volatile uint64_t _visited_for_critical_count; |
12108
b2ee55606008
7150390: JFR test crashed on assert(_jni_lock_count == count) failed: must be equal
never
parents:
11637
diff
changeset
|
426 |
|
b2ee55606008
7150390: JFR test crashed on assert(_jni_lock_count == count) failed: must be equal
never
parents:
11637
diff
changeset
|
427 |
public: |
53775 | 428 |
void set_visited_for_critical_count(uint64_t safepoint_id) { |
429 |
assert(_visited_for_critical_count == 0, "Must be reset before set"); |
|
430 |
assert((safepoint_id & 0x1) == 1, "Must be odd"); |
|
431 |
_visited_for_critical_count = safepoint_id; |
|
432 |
} |
|
433 |
void reset_visited_for_critical_count(uint64_t safepoint_id) { |
|
434 |
assert(_visited_for_critical_count == safepoint_id, "Was not visited"); |
|
435 |
_visited_for_critical_count = 0; |
|
436 |
} |
|
437 |
bool was_visited_for_critical_count(uint64_t safepoint_id) const { |
|
438 |
return _visited_for_critical_count == safepoint_id; |
|
439 |
} |
|
12108
b2ee55606008
7150390: JFR test crashed on assert(_jni_lock_count == count) failed: must be equal
never
parents:
11637
diff
changeset
|
440 |
#endif |
b2ee55606008
7150390: JFR test crashed on assert(_jni_lock_count == count) failed: must be equal
never
parents:
11637
diff
changeset
|
441 |
|
1 | 442 |
public: |
443 |
enum { |
|
444 |
is_definitely_current_thread = true |
|
445 |
}; |
|
446 |
||
447 |
// Constructor |
|
448 |
Thread(); |
|
51548 | 449 |
virtual ~Thread() = 0; // Thread is abstract. |
1 | 450 |
|
34633
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
33792
diff
changeset
|
451 |
// Manage Thread::current() |
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
33792
diff
changeset
|
452 |
void initialize_thread_current(); |
52302
912b79d983d9
8212173: Thread._stack_base/_stack_size initialized too late for new threads
stuefe
parents:
52033
diff
changeset
|
453 |
static void clear_thread_current(); // TLS cleanup needed before threads terminate |
912b79d983d9
8212173: Thread._stack_base/_stack_size initialized too late for new threads
stuefe
parents:
52033
diff
changeset
|
454 |
|
912b79d983d9
8212173: Thread._stack_base/_stack_size initialized too late for new threads
stuefe
parents:
52033
diff
changeset
|
455 |
protected: |
912b79d983d9
8212173: Thread._stack_base/_stack_size initialized too late for new threads
stuefe
parents:
52033
diff
changeset
|
456 |
// To be implemented by children. |
912b79d983d9
8212173: Thread._stack_base/_stack_size initialized too late for new threads
stuefe
parents:
52033
diff
changeset
|
457 |
virtual void run() = 0; |
53103
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
458 |
virtual void pre_run() = 0; |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
459 |
virtual void post_run() = 0; // Note: Thread must not be deleted prior to calling this! |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
460 |
|
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
461 |
#ifdef ASSERT |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
462 |
enum RunState { |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
463 |
PRE_CALL_RUN, |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
464 |
CALL_RUN, |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
465 |
PRE_RUN, |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
466 |
RUN, |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
467 |
POST_RUN |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
468 |
// POST_CALL_RUN - can't define this one as 'this' may be deleted when we want to set it |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
469 |
}; |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
470 |
RunState _run_state; // for lifecycle checks |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
471 |
#endif |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
472 |
|
1 | 473 |
|
49800
69d7398038c5
8195099: Concurrent safe-memory-reclamation mechanism
rehn
parents:
49756
diff
changeset
|
474 |
public: |
52302
912b79d983d9
8212173: Thread._stack_base/_stack_size initialized too late for new threads
stuefe
parents:
52033
diff
changeset
|
475 |
// invokes <ChildThreadClass>::run(), with common preparations and cleanups. |
912b79d983d9
8212173: Thread._stack_base/_stack_size initialized too late for new threads
stuefe
parents:
52033
diff
changeset
|
476 |
void call_run(); |
1 | 477 |
|
478 |
// Testers |
|
479 |
virtual bool is_VM_thread() const { return false; } |
|
480 |
virtual bool is_Java_thread() const { return false; } |
|
481 |
virtual bool is_Compiler_thread() const { return false; } |
|
27420
04e6f914cce1
8046809: vm/mlvm/meth/stress/compiler/deoptimize CodeCache is full.
anoll
parents:
26834
diff
changeset
|
482 |
virtual bool is_Code_cache_sweeper_thread() const { return false; } |
1 | 483 |
virtual bool is_hidden_from_external_view() const { return false; } |
484 |
virtual bool is_jvmti_agent_thread() const { return false; } |
|
485 |
// True iff the thread can perform GC operations at a safepoint. |
|
486 |
// Generally will be true only of VM thread and parallel GC WorkGang |
|
487 |
// threads. |
|
488 |
virtual bool is_GC_task_thread() const { return false; } |
|
489 |
virtual bool is_Watcher_thread() const { return false; } |
|
490 |
virtual bool is_ConcurrentGC_thread() const { return false; } |
|
4489
514173c9a0c2
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
4030
diff
changeset
|
491 |
virtual bool is_Named_thread() const { return false; } |
7399
4ecd771fa2d1
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
7397
diff
changeset
|
492 |
virtual bool is_Worker_thread() const { return false; } |
4ecd771fa2d1
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
7397
diff
changeset
|
493 |
|
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
494 |
// Can this thread make Java upcalls |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
495 |
virtual bool can_call_java() const { return false; } |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
496 |
|
57699
4aea554692aa
8226228: Make Threads_lock an always safepoint checked lock.
rehn
parents:
57603
diff
changeset
|
497 |
// Is this a JavaThread that is on the VM's current ThreadsList? |
4aea554692aa
8226228: Make Threads_lock an always safepoint checked lock.
rehn
parents:
57603
diff
changeset
|
498 |
// If so it must participate in the safepoint protocol. |
4aea554692aa
8226228: Make Threads_lock an always safepoint checked lock.
rehn
parents:
57603
diff
changeset
|
499 |
virtual bool is_active_Java_thread() const { return false; } |
4aea554692aa
8226228: Make Threads_lock an always safepoint checked lock.
rehn
parents:
57603
diff
changeset
|
500 |
|
7399
4ecd771fa2d1
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
7397
diff
changeset
|
501 |
// Casts |
4ecd771fa2d1
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
7397
diff
changeset
|
502 |
virtual WorkerThread* as_Worker_thread() const { return NULL; } |
1 | 503 |
|
504 |
virtual char* name() const { return (char*)"Unknown thread"; } |
|
505 |
||
34633
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
33792
diff
changeset
|
506 |
// Returns the current thread (ASSERTS if NULL) |
1 | 507 |
static inline Thread* current(); |
34633
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
33792
diff
changeset
|
508 |
// Returns the current thread, or NULL if not attached |
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
33792
diff
changeset
|
509 |
static inline Thread* current_or_null(); |
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
33792
diff
changeset
|
510 |
// Returns the current thread, or NULL if not attached, and is |
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
33792
diff
changeset
|
511 |
// safe for use from signal-handlers |
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
33792
diff
changeset
|
512 |
static inline Thread* current_or_null_safe(); |
1 | 513 |
|
514 |
// Common thread operations |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
515 |
#ifdef ASSERT |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
516 |
static void check_for_dangling_thread_pointer(Thread *thread); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
517 |
#endif |
1 | 518 |
static void set_priority(Thread* thread, ThreadPriority priority); |
519 |
static ThreadPriority get_priority(const Thread* const thread); |
|
520 |
static void start(Thread* thread); |
|
521 |
||
10739 | 522 |
void set_native_thread_name(const char *name) { |
523 |
assert(Thread::current() == this, "set_native_thread_name can only be called on the current thread"); |
|
524 |
os::set_native_thread_name(name); |
|
525 |
} |
|
526 |
||
57906
e17f768b3b71
8230184: rename, whitespace, indent and comments changes in preparation for lock free Monitor lists
dcubed
parents:
57840
diff
changeset
|
527 |
ObjectMonitor** om_in_use_list_addr() { return (ObjectMonitor **)&om_in_use_list; } |
1 | 528 |
Monitor* SR_lock() const { return _SR_lock; } |
529 |
||
530 |
bool has_async_exception() const { return (_suspend_flags & _has_async_exception) != 0; } |
|
531 |
||
25351
7c198a690050
8044775: Improve usage of umbrella header atomic.inline.hpp.
goetz
parents:
25064
diff
changeset
|
532 |
inline void set_suspend_flag(SuspendFlags f); |
7c198a690050
8044775: Improve usage of umbrella header atomic.inline.hpp.
goetz
parents:
25064
diff
changeset
|
533 |
inline void clear_suspend_flag(SuspendFlags f); |
1 | 534 |
|
25351
7c198a690050
8044775: Improve usage of umbrella header atomic.inline.hpp.
goetz
parents:
25064
diff
changeset
|
535 |
inline void set_has_async_exception(); |
7c198a690050
8044775: Improve usage of umbrella header atomic.inline.hpp.
goetz
parents:
25064
diff
changeset
|
536 |
inline void clear_has_async_exception(); |
1 | 537 |
|
11637
030466036615
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
11631
diff
changeset
|
538 |
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
|
539 |
|
25351
7c198a690050
8044775: Improve usage of umbrella header atomic.inline.hpp.
goetz
parents:
25064
diff
changeset
|
540 |
inline void set_critical_native_unlock(); |
7c198a690050
8044775: Improve usage of umbrella header atomic.inline.hpp.
goetz
parents:
25064
diff
changeset
|
541 |
inline void clear_critical_native_unlock(); |
11637
030466036615
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
11631
diff
changeset
|
542 |
|
46643 | 543 |
inline void set_trace_flag(); |
544 |
inline void clear_trace_flag(); |
|
545 |
||
1 | 546 |
// Support for Unhandled Oop detection |
32575 | 547 |
// Add the field for both, fastdebug and debug, builds to keep |
548 |
// Thread's fields layout the same. |
|
549 |
// Note: CHECK_UNHANDLED_OOPS is defined only for fastdebug build. |
|
1 | 550 |
#ifdef CHECK_UNHANDLED_OOPS |
551 |
private: |
|
7724
a92d706dbdd5
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
7399
diff
changeset
|
552 |
UnhandledOops* _unhandled_oops; |
32575 | 553 |
#elif defined(ASSERT) |
554 |
private: |
|
555 |
void* _unhandled_oops; |
|
556 |
#endif |
|
557 |
#ifdef CHECK_UNHANDLED_OOPS |
|
1 | 558 |
public: |
7724
a92d706dbdd5
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
7399
diff
changeset
|
559 |
UnhandledOops* unhandled_oops() { return _unhandled_oops; } |
1 | 560 |
// 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
|
561 |
void allow_unhandled_oop(oop *op) { |
1 | 562 |
if (CheckUnhandledOops) unhandled_oops()->allow_unhandled_oop(op); |
563 |
} |
|
564 |
// 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
|
565 |
void clear_unhandled_oops() { |
1 | 566 |
if (CheckUnhandledOops) unhandled_oops()->clear_unhandled_oops(); |
567 |
} |
|
568 |
#endif // CHECK_UNHANDLED_OOPS |
|
569 |
||
32575 | 570 |
public: |
2995
d8283445992a
6820167: GCALotAtAllSafepoints + FullGCALot(ScavengeALot) options crash JVM
ysr
parents:
2526
diff
changeset
|
571 |
#ifndef PRODUCT |
d8283445992a
6820167: GCALotAtAllSafepoints + FullGCALot(ScavengeALot) options crash JVM
ysr
parents:
2526
diff
changeset
|
572 |
bool skip_gcalot() { return _skip_gcalot; } |
d8283445992a
6820167: GCALotAtAllSafepoints + FullGCALot(ScavengeALot) options crash JVM
ysr
parents:
2526
diff
changeset
|
573 |
void set_skip_gcalot(bool v) { _skip_gcalot = v; } |
d8283445992a
6820167: GCALotAtAllSafepoints + FullGCALot(ScavengeALot) options crash JVM
ysr
parents:
2526
diff
changeset
|
574 |
#endif |
d8283445992a
6820167: GCALotAtAllSafepoints + FullGCALot(ScavengeALot) options crash JVM
ysr
parents:
2526
diff
changeset
|
575 |
|
1 | 576 |
// Installs a pending exception to be inserted later |
577 |
static void send_async_exception(oop thread_oop, oop java_throwable); |
|
578 |
||
579 |
// Resource area |
|
580 |
ResourceArea* resource_area() const { return _resource_area; } |
|
581 |
void set_resource_area(ResourceArea* area) { _resource_area = area; } |
|
582 |
||
583 |
OSThread* osthread() const { return _osthread; } |
|
584 |
void set_osthread(OSThread* thread) { _osthread = thread; } |
|
585 |
||
586 |
// JNI handle support |
|
587 |
JNIHandleBlock* active_handles() const { return _active_handles; } |
|
588 |
void set_active_handles(JNIHandleBlock* block) { _active_handles = block; } |
|
589 |
JNIHandleBlock* free_handle_block() const { return _free_handle_block; } |
|
590 |
void set_free_handle_block(JNIHandleBlock* block) { _free_handle_block = block; } |
|
591 |
||
592 |
// Internal handle support |
|
593 |
HandleArea* handle_area() const { return _handle_area; } |
|
594 |
void set_handle_area(HandleArea* area) { _handle_area = area; } |
|
595 |
||
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
596 |
GrowableArray<Metadata*>* metadata_handles() const { return _metadata_handles; } |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
597 |
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
|
598 |
|
1 | 599 |
// Thread-Local Allocation Buffer (TLAB) support |
600 |
ThreadLocalAllocBuffer& tlab() { return _tlab; } |
|
601 |
void initialize_tlab() { |
|
602 |
if (UseTLAB) { |
|
603 |
tlab().initialize(); |
|
604 |
} |
|
605 |
} |
|
606 |
||
7724
a92d706dbdd5
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
7399
diff
changeset
|
607 |
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
|
608 |
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
|
609 |
void incr_allocated_bytes(jlong size) { _allocated_bytes += size; } |
24351
61b33cc6d3cf
8042195: Introduce umbrella header orderAccess.inline.hpp.
goetz
parents:
23855
diff
changeset
|
610 |
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
|
611 |
|
50578
e2a7f431f65c
8203394: Implementation of JEP 331: Low-Overhead Heap Profiling
jcbeyler
parents:
50113
diff
changeset
|
612 |
ThreadHeapSampler& heap_sampler() { return _heap_sampler; } |
e2a7f431f65c
8203394: Implementation of JEP 331: Low-Overhead Heap Profiling
jcbeyler
parents:
50113
diff
changeset
|
613 |
|
50785
d1b24f2ceca5
8200720: Print additional information in thread dump (times, allocated bytes etc.)
ghaug
parents:
50578
diff
changeset
|
614 |
ThreadStatisticalInfo& statistical_info() { return _statistical_info; } |
d1b24f2ceca5
8200720: Print additional information in thread dump (times, allocated bytes etc.)
ghaug
parents:
50578
diff
changeset
|
615 |
|
50113 | 616 |
JFR_ONLY(DEFINE_THREAD_LOCAL_ACCESSOR_JFR;) |
617 |
||
46643 | 618 |
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
|
619 |
|
1 | 620 |
// VM operation support |
621 |
int vm_operation_ticket() { return ++_vm_operation_started_count; } |
|
622 |
int vm_operation_completed_count() { return _vm_operation_completed_count; } |
|
623 |
void increment_vm_operation_completed_count() { _vm_operation_completed_count++; } |
|
624 |
||
625 |
// For tracking the heavyweight monitor the thread is pending on. |
|
626 |
ObjectMonitor* current_pending_monitor() { |
|
627 |
return _current_pending_monitor; |
|
628 |
} |
|
629 |
void set_current_pending_monitor(ObjectMonitor* monitor) { |
|
630 |
_current_pending_monitor = monitor; |
|
631 |
} |
|
632 |
void set_current_pending_monitor_is_from_java(bool from_java) { |
|
633 |
_current_pending_monitor_is_from_java = from_java; |
|
634 |
} |
|
635 |
bool current_pending_monitor_is_from_java() { |
|
636 |
return _current_pending_monitor_is_from_java; |
|
637 |
} |
|
638 |
||
639 |
// For tracking the ObjectMonitor on which this thread called Object.wait() |
|
640 |
ObjectMonitor* current_waiting_monitor() { |
|
641 |
return _current_waiting_monitor; |
|
642 |
} |
|
643 |
void set_current_waiting_monitor(ObjectMonitor* monitor) { |
|
644 |
_current_waiting_monitor = monitor; |
|
645 |
} |
|
646 |
||
58488
165b193b30dd
8231289: Disentangle JvmtiRawMonitor from ObjectMonitor and clean it up
dholmes
parents:
58291
diff
changeset
|
647 |
// For tracking the Jvmti raw monitor the thread is pending on. |
165b193b30dd
8231289: Disentangle JvmtiRawMonitor from ObjectMonitor and clean it up
dholmes
parents:
58291
diff
changeset
|
648 |
JvmtiRawMonitor* current_pending_raw_monitor() { |
165b193b30dd
8231289: Disentangle JvmtiRawMonitor from ObjectMonitor and clean it up
dholmes
parents:
58291
diff
changeset
|
649 |
return _current_pending_raw_monitor; |
165b193b30dd
8231289: Disentangle JvmtiRawMonitor from ObjectMonitor and clean it up
dholmes
parents:
58291
diff
changeset
|
650 |
} |
165b193b30dd
8231289: Disentangle JvmtiRawMonitor from ObjectMonitor and clean it up
dholmes
parents:
58291
diff
changeset
|
651 |
void set_current_pending_raw_monitor(JvmtiRawMonitor* monitor) { |
165b193b30dd
8231289: Disentangle JvmtiRawMonitor from ObjectMonitor and clean it up
dholmes
parents:
58291
diff
changeset
|
652 |
_current_pending_raw_monitor = monitor; |
165b193b30dd
8231289: Disentangle JvmtiRawMonitor from ObjectMonitor and clean it up
dholmes
parents:
58291
diff
changeset
|
653 |
} |
165b193b30dd
8231289: Disentangle JvmtiRawMonitor from ObjectMonitor and clean it up
dholmes
parents:
58291
diff
changeset
|
654 |
|
1 | 655 |
// GC support |
656 |
// 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
|
657 |
// Used by JavaThread::oops_do. |
3908
24b55ad4c228
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
3261
diff
changeset
|
658 |
// 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
|
659 |
virtual void oops_do(OopClosure* f, CodeBlobClosure* cf); |
1 | 660 |
|
54385
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54278
diff
changeset
|
661 |
// Handles the parallel case for claim_threads_do. |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
662 |
private: |
54385
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54278
diff
changeset
|
663 |
bool claim_par_threads_do(uintx claim_token); |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
664 |
public: |
54385
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54278
diff
changeset
|
665 |
// Requires that "claim_token" is that of the current iteration. |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54278
diff
changeset
|
666 |
// If "is_par" is false, sets the token of "this" to |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54278
diff
changeset
|
667 |
// "claim_token", and returns "true". If "is_par" is true, |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54278
diff
changeset
|
668 |
// uses an atomic instruction to set the current thread's token to |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54278
diff
changeset
|
669 |
// "claim_token", if it is not already. Returns "true" iff the |
1 | 670 |
// calling thread does the update, this indicates that the calling thread |
54385
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54278
diff
changeset
|
671 |
// has claimed the thread in the current iteration. |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54278
diff
changeset
|
672 |
bool claim_threads_do(bool is_par, uintx claim_token) { |
1 | 673 |
if (!is_par) { |
54385
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54278
diff
changeset
|
674 |
_threads_do_token = claim_token; |
1 | 675 |
return true; |
676 |
} else { |
|
54385
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54278
diff
changeset
|
677 |
return claim_par_threads_do(claim_token); |
1 | 678 |
} |
679 |
} |
|
680 |
||
54385
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54278
diff
changeset
|
681 |
uintx threads_do_token() const { return _threads_do_token; } |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54278
diff
changeset
|
682 |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
683 |
// jvmtiRedefineClasses support |
29576
c223b0a9872e
8061205: MetadataOnStackMark only needs to walk code cache during class redefinition
coleenp
parents:
29362
diff
changeset
|
684 |
void metadata_handles_do(void f(Metadata*)); |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
685 |
|
2526
39a58a50be35
6699669: Hotspot server leaves synchronized block with monitor in bad state
xlu
parents:
2135
diff
changeset
|
686 |
// Used by fast lock support |
1 | 687 |
virtual bool is_lock_owned(address adr) const; |
688 |
||
689 |
// 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
|
690 |
// Warning: the method can only be used on the running thread |
1 | 691 |
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
|
692 |
// 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
|
693 |
// guard pages) |
ff8f8cec9434
8016131: nsk/sysdict/vm/stress/chain tests crash the VM in 'entry_frame_is_first()'
rbackman
parents:
18928
diff
changeset
|
694 |
bool is_in_usable_stack(address adr) const; |
1 | 695 |
|
696 |
// Sets this thread as starting thread. Returns failure if thread |
|
697 |
// creation fails due to lack of memory, too many threads etc. |
|
698 |
bool set_as_starting_thread(); |
|
699 |
||
27247
99db666dbe8e
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
26834
diff
changeset
|
700 |
protected: |
1 | 701 |
// OS data associated with the thread |
702 |
OSThread* _osthread; // Platform-specific thread information |
|
703 |
||
704 |
// Thread local resource area for temporary allocation within the VM |
|
705 |
ResourceArea* _resource_area; |
|
706 |
||
18928
ac0163dd0a50
7143807: ResourceMark nesting problem in stringStream
fparain
parents:
18025
diff
changeset
|
707 |
DEBUG_ONLY(ResourceMark* _current_resource_mark;) |
ac0163dd0a50
7143807: ResourceMark nesting problem in stringStream
fparain
parents:
18025
diff
changeset
|
708 |
|
1 | 709 |
// Thread local handle area for allocation of handles within the VM |
710 |
HandleArea* _handle_area; |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
711 |
GrowableArray<Metadata*>* _metadata_handles; |
1 | 712 |
|
713 |
// Support for stack overflow handling, get_thread, etc. |
|
714 |
address _stack_base; |
|
715 |
size_t _stack_size; |
|
716 |
int _lgrp_id; |
|
717 |
||
47881
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
718 |
volatile void** polling_page_addr() { return &_polling_page; } |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
719 |
|
1 | 720 |
public: |
721 |
// Stack overflow support |
|
722 |
address stack_base() const { assert(_stack_base != NULL,"Sanity check"); return _stack_base; } |
|
723 |
void set_stack_base(address base) { _stack_base = base; } |
|
724 |
size_t stack_size() const { return _stack_size; } |
|
725 |
void set_stack_size(size_t size) { _stack_size = size; } |
|
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
726 |
address stack_end() const { return stack_base() - stack_size(); } |
1 | 727 |
void record_stack_base_and_size(); |
52302
912b79d983d9
8212173: Thread._stack_base/_stack_size initialized too late for new threads
stuefe
parents:
52033
diff
changeset
|
728 |
void register_thread_stack_with_NMT() NOT_NMT_RETURN; |
1 | 729 |
|
6183
4c74cfe14f20
6975078: assert(allocated_on_res_area() || allocated_on_C_heap() || allocated_on_arena()
kvn
parents:
5920
diff
changeset
|
730 |
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
|
731 |
// 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
|
732 |
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
|
733 |
} |
4c74cfe14f20
6975078: assert(allocated_on_res_area() || allocated_on_C_heap() || allocated_on_arena()
kvn
parents:
5920
diff
changeset
|
734 |
|
7724
a92d706dbdd5
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
7399
diff
changeset
|
735 |
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
|
736 |
void set_lgrp_id(int value) { _lgrp_id = value; } |
1 | 737 |
|
738 |
// Printing |
|
50785
d1b24f2ceca5
8200720: Print additional information in thread dump (times, allocated bytes etc.)
ghaug
parents:
50578
diff
changeset
|
739 |
void print_on(outputStream* st, bool print_extended_info) const; |
d1b24f2ceca5
8200720: Print additional information in thread dump (times, allocated bytes etc.)
ghaug
parents:
50578
diff
changeset
|
740 |
virtual void print_on(outputStream* st) const { print_on(st, false); } |
54807 | 741 |
void print() const; |
1 | 742 |
virtual void print_on_error(outputStream* st, char* buf, int buflen) const; |
46742 | 743 |
void print_value_on(outputStream* st) const; |
1 | 744 |
|
745 |
// Debug-only code |
|
746 |
#ifdef ASSERT |
|
747 |
private: |
|
748 |
// Deadlock detection support for Mutex locks. List of locks own by thread. |
|
57840 | 749 |
Mutex* _owned_locks; |
1 | 750 |
// Mutex::set_owner_implementation is the only place where _owned_locks is modified, |
751 |
// thus the friendship |
|
752 |
friend class Mutex; |
|
753 |
friend class Monitor; |
|
754 |
||
755 |
public: |
|
756 |
void print_owned_locks_on(outputStream* st) const; |
|
757 |
void print_owned_locks() const { print_owned_locks_on(tty); } |
|
57840 | 758 |
Mutex* owned_locks() const { return _owned_locks; } |
1 | 759 |
bool owns_locks() const { return owned_locks() != NULL; } |
760 |
||
761 |
// Deadlock detection |
|
18928
ac0163dd0a50
7143807: ResourceMark nesting problem in stringStream
fparain
parents:
18025
diff
changeset
|
762 |
ResourceMark* current_resource_mark() { return _current_resource_mark; } |
ac0163dd0a50
7143807: ResourceMark nesting problem in stringStream
fparain
parents:
18025
diff
changeset
|
763 |
void set_current_resource_mark(ResourceMark* rm) { _current_resource_mark = rm; } |
57745 | 764 |
#endif // ASSERT |
1 | 765 |
|
57745 | 766 |
// These functions check conditions on a JavaThread before possibly going to a safepoint, |
767 |
// including NoSafepointVerifier. |
|
58291
a013100f7a35
8213150: Add verification for locking by VMThread
coleenp
parents:
58282
diff
changeset
|
768 |
void check_for_valid_safepoint_state() NOT_DEBUG_RETURN; |
57745 | 769 |
void check_possible_safepoint() NOT_DEBUG_RETURN; |
1 | 770 |
|
771 |
private: |
|
772 |
volatile int _jvmti_env_iteration_count; |
|
773 |
||
774 |
public: |
|
775 |
void entering_jvmti_env_iteration() { ++_jvmti_env_iteration_count; } |
|
776 |
void leaving_jvmti_env_iteration() { --_jvmti_env_iteration_count; } |
|
777 |
bool is_inside_jvmti_env_iteration() { return _jvmti_env_iteration_count > 0; } |
|
778 |
||
779 |
// Code generation |
|
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
780 |
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
|
781 |
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
|
782 |
static ByteSize active_handles_offset() { return byte_offset_of(Thread, _active_handles); } |
1 | 783 |
|
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
784 |
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
|
785 |
static ByteSize stack_size_offset() { return byte_offset_of(Thread, _stack_size); } |
1 | 786 |
|
47881
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
787 |
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
|
788 |
|
51743
47466ac8dcf0
8210711: Remove unused offset getters in ThreadLocalAllocBuffer
pliden
parents:
51600
diff
changeset
|
789 |
static ByteSize tlab_start_offset() { return byte_offset_of(Thread, _tlab) + ThreadLocalAllocBuffer::start_offset(); } |
47466ac8dcf0
8210711: Remove unused offset getters in ThreadLocalAllocBuffer
pliden
parents:
51600
diff
changeset
|
790 |
static ByteSize tlab_end_offset() { return byte_offset_of(Thread, _tlab) + ThreadLocalAllocBuffer::end_offset(); } |
47466ac8dcf0
8210711: Remove unused offset getters in ThreadLocalAllocBuffer
pliden
parents:
51600
diff
changeset
|
791 |
static ByteSize tlab_top_offset() { return byte_offset_of(Thread, _tlab) + ThreadLocalAllocBuffer::top_offset(); } |
47466ac8dcf0
8210711: Remove unused offset getters in ThreadLocalAllocBuffer
pliden
parents:
51600
diff
changeset
|
792 |
static ByteSize tlab_pf_top_offset() { return byte_offset_of(Thread, _tlab) + ThreadLocalAllocBuffer::pf_top_offset(); } |
1 | 793 |
|
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
794 |
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
|
795 |
|
50113 | 796 |
JFR_ONLY(DEFINE_THREAD_LOCAL_OFFSET_JFR;) |
797 |
||
1 | 798 |
public: |
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
799 |
volatile intptr_t _Stalled; |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
800 |
volatile int _TypeTag; |
58488
165b193b30dd
8231289: Disentangle JvmtiRawMonitor from ObjectMonitor and clean it up
dholmes
parents:
58291
diff
changeset
|
801 |
ParkEvent * _ParkEvent; // for Object monitors and JVMTI raw monitors |
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
802 |
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
|
803 |
int NativeSyncRecursion; // diagnostic |
1 | 804 |
|
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
805 |
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
|
806 |
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
|
807 |
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
|
808 |
jint _hashStateY; |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
809 |
jint _hashStateZ; |
1 | 810 |
|
811 |
// Low-level leaf-lock primitives used to implement synchronization |
|
812 |
// and native monitor-mutex infrastructure. |
|
813 |
// 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
|
814 |
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
|
815 |
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
|
816 |
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
|
817 |
static void muxRelease(volatile intptr_t * Lock); |
1 | 818 |
}; |
819 |
||
820 |
// Inline implementation of Thread::current() |
|
34633
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
33792
diff
changeset
|
821 |
inline Thread* Thread::current() { |
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
33792
diff
changeset
|
822 |
Thread* current = current_or_null(); |
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
33792
diff
changeset
|
823 |
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
|
824 |
return current; |
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
33792
diff
changeset
|
825 |
} |
1 | 826 |
|
34633
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
33792
diff
changeset
|
827 |
inline Thread* Thread::current_or_null() { |
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
33792
diff
changeset
|
828 |
#ifndef USE_LIBRARY_BASED_TLS_ONLY |
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
33792
diff
changeset
|
829 |
return _thr_current; |
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
33792
diff
changeset
|
830 |
#else |
46688
d33b4d593f9b
8184339: Thread::current_or_null() shall not assert if Posix TLS is not yet initialized
stuefe
parents:
46644
diff
changeset
|
831 |
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
|
832 |
return ThreadLocalStorage::thread(); |
d33b4d593f9b
8184339: Thread::current_or_null() shall not assert if Posix TLS is not yet initialized
stuefe
parents:
46644
diff
changeset
|
833 |
} |
d33b4d593f9b
8184339: Thread::current_or_null() shall not assert if Posix TLS is not yet initialized
stuefe
parents:
46644
diff
changeset
|
834 |
return NULL; |
1 | 835 |
#endif |
34633
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
33792
diff
changeset
|
836 |
} |
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
33792
diff
changeset
|
837 |
|
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
33792
diff
changeset
|
838 |
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
|
839 |
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
|
840 |
return ThreadLocalStorage::thread(); |
d33b4d593f9b
8184339: Thread::current_or_null() shall not assert if Posix TLS is not yet initialized
stuefe
parents:
46644
diff
changeset
|
841 |
} |
d33b4d593f9b
8184339: Thread::current_or_null() shall not assert if Posix TLS is not yet initialized
stuefe
parents:
46644
diff
changeset
|
842 |
return NULL; |
1 | 843 |
} |
844 |
||
51548 | 845 |
class NonJavaThread: public Thread { |
846 |
friend class VMStructs; |
|
847 |
||
848 |
NonJavaThread* volatile _next; |
|
849 |
||
850 |
class List; |
|
851 |
static List _the_list; |
|
852 |
||
53103
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
853 |
void add_to_the_list(); |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
854 |
void remove_from_the_list(); |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
855 |
|
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
856 |
protected: |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
857 |
virtual void pre_run(); |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
858 |
virtual void post_run(); |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
859 |
|
51548 | 860 |
public: |
861 |
NonJavaThread(); |
|
862 |
~NonJavaThread(); |
|
863 |
||
864 |
class Iterator; |
|
865 |
}; |
|
866 |
||
53103
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
867 |
// Provides iteration over the list of NonJavaThreads. |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
868 |
// List addition occurs in pre_run(), and removal occurs in post_run(), |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
869 |
// so that only live fully-initialized threads can be found in the list. |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
870 |
// Threads created after an iterator is constructed will not be visited |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
871 |
// by the iterator. The scope of an iterator is a critical section; there |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
872 |
// must be no safepoint checks in that scope. |
51548 | 873 |
class NonJavaThread::Iterator : public StackObj { |
874 |
uint _protect_enter; |
|
875 |
NonJavaThread* _current; |
|
876 |
||
877 |
// Noncopyable. |
|
878 |
Iterator(const Iterator&); |
|
879 |
Iterator& operator=(const Iterator&); |
|
880 |
||
881 |
public: |
|
882 |
Iterator(); |
|
883 |
~Iterator(); |
|
884 |
||
885 |
bool end() const { return _current == NULL; } |
|
886 |
NonJavaThread* current() const { return _current; } |
|
887 |
void step(); |
|
888 |
}; |
|
889 |
||
1 | 890 |
// Name support for threads. non-JavaThread subclasses with multiple |
891 |
// uniquely named instances should derive from this. |
|
51548 | 892 |
class NamedThread: public NonJavaThread { |
1 | 893 |
friend class VMStructs; |
894 |
enum { |
|
895 |
max_name_len = 64 |
|
896 |
}; |
|
897 |
private: |
|
898 |
char* _name; |
|
4489
514173c9a0c2
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
4030
diff
changeset
|
899 |
// log JavaThread being processed by oops_do |
514173c9a0c2
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
4030
diff
changeset
|
900 |
JavaThread* _processed_thread; |
33107
77bf0d2069a3
8134953: Make the GC ID available in a central place
brutisso
parents:
32575
diff
changeset
|
901 |
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
|
902 |
|
1 | 903 |
public: |
904 |
NamedThread(); |
|
905 |
~NamedThread(); |
|
906 |
// May only be called once per thread. |
|
24424
2658d7834c6e
8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents:
24352
diff
changeset
|
907 |
void set_name(const char* format, ...) ATTRIBUTE_PRINTF(2, 3); |
4489
514173c9a0c2
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
4030
diff
changeset
|
908 |
virtual bool is_Named_thread() const { return true; } |
1 | 909 |
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
|
910 |
JavaThread *processed_thread() { return _processed_thread; } |
514173c9a0c2
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
4030
diff
changeset
|
911 |
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
|
912 |
virtual void print_on(outputStream* st) const; |
33107
77bf0d2069a3
8134953: Make the GC ID available in a central place
brutisso
parents:
32575
diff
changeset
|
913 |
|
77bf0d2069a3
8134953: Make the GC ID available in a central place
brutisso
parents:
32575
diff
changeset
|
914 |
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
|
915 |
uint gc_id() { return _gc_id; } |
1 | 916 |
}; |
917 |
||
918 |
// Worker threads are named and have an id of an assigned work. |
|
919 |
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
|
920 |
private: |
1 | 921 |
uint _id; |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
922 |
public: |
7399
4ecd771fa2d1
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
7397
diff
changeset
|
923 |
WorkerThread() : _id(0) { } |
4ecd771fa2d1
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
7397
diff
changeset
|
924 |
virtual bool is_Worker_thread() const { return true; } |
4ecd771fa2d1
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
7397
diff
changeset
|
925 |
|
4ecd771fa2d1
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
7397
diff
changeset
|
926 |
virtual WorkerThread* as_Worker_thread() const { |
4ecd771fa2d1
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
7397
diff
changeset
|
927 |
assert(is_Worker_thread(), "Dubious cast to WorkerThread*?"); |
4ecd771fa2d1
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
7397
diff
changeset
|
928 |
return (WorkerThread*) this; |
4ecd771fa2d1
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
7397
diff
changeset
|
929 |
} |
4ecd771fa2d1
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
7397
diff
changeset
|
930 |
|
4ecd771fa2d1
6983204: G1: Nightly test nsk/regression/b4958615 failing with +ExplicitGCInvokesConcurrent
johnc
parents:
7397
diff
changeset
|
931 |
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
|
932 |
uint id() const { return _id; } |
1 | 933 |
}; |
934 |
||
935 |
// A single WatcherThread is used for simulating timer interrupts. |
|
51548 | 936 |
class WatcherThread: public NonJavaThread { |
1 | 937 |
friend class VMStructs; |
53103
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
938 |
protected: |
1 | 939 |
virtual void run(); |
940 |
||
941 |
private: |
|
942 |
static WatcherThread* _watcher_thread; |
|
943 |
||
14390
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14083
diff
changeset
|
944 |
static bool _startable; |
29321 | 945 |
// volatile due to at least one lock-free read |
946 |
volatile static bool _should_terminate; |
|
1 | 947 |
public: |
948 |
enum SomeConstants { |
|
949 |
delay_interval = 10 // interrupt delay in milliseconds |
|
950 |
}; |
|
951 |
||
952 |
// Constructor |
|
953 |
WatcherThread(); |
|
954 |
||
38290
6b194cfc1557
8154715: Missing destructor and/or TLS clearing calls for terminating threads
dholmes
parents:
38144
diff
changeset
|
955 |
// No destruction allowed |
6b194cfc1557
8154715: Missing destructor and/or TLS clearing calls for terminating threads
dholmes
parents:
38144
diff
changeset
|
956 |
~WatcherThread() { |
6b194cfc1557
8154715: Missing destructor and/or TLS clearing calls for terminating threads
dholmes
parents:
38144
diff
changeset
|
957 |
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
|
958 |
} |
6b194cfc1557
8154715: Missing destructor and/or TLS clearing calls for terminating threads
dholmes
parents:
38144
diff
changeset
|
959 |
|
1 | 960 |
// Tester |
961 |
bool is_Watcher_thread() const { return true; } |
|
962 |
||
963 |
// Printing |
|
964 |
char* name() const { return (char*)"VM Periodic Task Thread"; } |
|
965 |
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
|
966 |
void unpark(); |
1 | 967 |
|
968 |
// Returns the single instance of WatcherThread |
|
969 |
static WatcherThread* watcher_thread() { return _watcher_thread; } |
|
970 |
||
971 |
// Create and start the single instance of WatcherThread, or stop it on shutdown |
|
972 |
static void start(); |
|
973 |
static void stop(); |
|
14390
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14083
diff
changeset
|
974 |
// 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
|
975 |
// 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
|
976 |
static void make_startable(); |
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14083
diff
changeset
|
977 |
private: |
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14083
diff
changeset
|
978 |
int sleep() const; |
1 | 979 |
}; |
980 |
||
981 |
||
982 |
class CompilerThread; |
|
983 |
||
984 |
typedef void (*ThreadFunction)(JavaThread*, TRAPS); |
|
985 |
||
986 |
class JavaThread: public Thread { |
|
987 |
friend class VMStructs; |
|
35123
b0b89d83bcf5
8134994: use separate VMStructs databases for SA and JVMCI
twisti
parents:
33792
diff
changeset
|
988 |
friend class JVMCIVMStructs; |
27917
c5937f7b4e8b
8064669: compiler/whitebox/AllocationCodeBlobTest.java crashes / asserts
iignatyev
parents:
27651
diff
changeset
|
989 |
friend class WhiteBox; |
1 | 990 |
private: |
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
991 |
bool _on_thread_list; // Is set when this JavaThread is added to the Threads list |
1 | 992 |
oop _threadObj; // The Java level thread object |
993 |
||
994 |
#ifdef ASSERT |
|
995 |
private: |
|
996 |
int _java_call_counter; |
|
997 |
||
998 |
public: |
|
999 |
int java_call_counter() { return _java_call_counter; } |
|
1000 |
void inc_java_call_counter() { _java_call_counter++; } |
|
1001 |
void dec_java_call_counter() { |
|
1002 |
assert(_java_call_counter > 0, "Invalid nesting of JavaCallWrapper"); |
|
1003 |
_java_call_counter--; |
|
1004 |
} |
|
1005 |
private: // restore original namespace restriction |
|
1006 |
#endif // ifdef ASSERT |
|
1007 |
||
1008 |
#ifndef PRODUCT |
|
1009 |
public: |
|
1010 |
enum { |
|
1011 |
jump_ring_buffer_size = 16 |
|
1012 |
}; |
|
1013 |
private: // restore original namespace restriction |
|
1014 |
#endif |
|
1015 |
||
1016 |
JavaFrameAnchor _anchor; // Encapsulation of current java frame and it state |
|
1017 |
||
1018 |
ThreadFunction _entry_point; |
|
1019 |
||
1020 |
JNIEnv _jni_environment; |
|
1021 |
||
1022 |
// Deopt support |
|
1023 |
DeoptResourceMark* _deopt_mark; // Holds special ResourceMark for deoptimization |
|
1024 |
||
38133
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
37474
diff
changeset
|
1025 |
CompiledMethod* _deopt_nmethod; // CompiledMethod that is currently being deoptimized |
1 | 1026 |
vframeArray* _vframe_array_head; // Holds the heap of the active vframeArrays |
1027 |
vframeArray* _vframe_array_last; // Holds last vFrameArray we popped |
|
1028 |
// Because deoptimization is lazy we must save jvmti requests to set locals |
|
1029 |
// in compiled frames until we deoptimize and we have an interpreter frame. |
|
1030 |
// This holds the pointer to array (yeah like there might be more than one) of |
|
1031 |
// description of compiled vframes that have locals that need to be updated. |
|
1032 |
GrowableArray<jvmtiDeferredLocalVariableSet*>* _deferred_locals_updates; |
|
1033 |
||
1034 |
// 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
|
1035 |
// adapter to store the callee Method*. This value is NEVER live |
1 | 1036 |
// across a gc point so it does NOT have to be gc'd |
1037 |
// The handshake is open ended since we can't be certain that it will |
|
1038 |
// be NULLed. This is because we rarely ever see the race and end up |
|
1039 |
// in handle_wrong_method which is the backend of the handshake. See |
|
1040 |
// code in i2c adapters and handle_wrong_method. |
|
1041 |
||
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
1042 |
Method* _callee_target; |
1 | 1043 |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
1044 |
// 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
|
1045 |
oop _vm_result; // oop result is GC-preserved |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
1046 |
Metadata* _vm_result_2; // non-oop result |
4030
4c471254865e
6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning
ysr
parents:
3916
diff
changeset
|
1047 |
|
4c471254865e
6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning
ysr
parents:
3916
diff
changeset
|
1048 |
// 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
|
1049 |
// 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
|
1050 |
// 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
|
1051 |
MemRegion _deferred_card_mark; |
1 | 1052 |
|
1053 |
MonitorChunk* _monitor_chunks; // Contains the off stack monitors |
|
1054 |
// allocated during deoptimization |
|
1055 |
// and by JNI_MonitorEnter/Exit |
|
1056 |
||
1057 |
// Async. requests support |
|
1058 |
enum AsyncRequests { |
|
1059 |
_no_async_condition = 0, |
|
1060 |
_async_exception, |
|
1061 |
_async_unsafe_access_error |
|
1062 |
}; |
|
1063 |
AsyncRequests _special_runtime_exit_condition; // Enum indicating pending async. request |
|
1064 |
oop _pending_async_exception; |
|
1065 |
||
1066 |
// Safepoint support |
|
1067 |
public: // Expose _thread_state for SafeFetchInt() |
|
1068 |
volatile JavaThreadState _thread_state; |
|
1069 |
private: |
|
52673 | 1070 |
ThreadSafepointState* _safepoint_state; // Holds information about a thread during a safepoint |
1 | 1071 |
address _saved_exception_pc; // Saved pc of instruction where last implicit exception happened |
1072 |
||
1073 |
// JavaThread termination support |
|
1074 |
enum TerminatedTypes { |
|
1075 |
_not_terminated = 0xDEAD - 2, |
|
1076 |
_thread_exiting, // JavaThread::exit() has been called for this thread |
|
1077 |
_thread_terminated, // JavaThread is removed from thread list |
|
1078 |
_vm_exited // JavaThread is still executing native code, but VM is terminated |
|
1079 |
// only VM_Exit can set _vm_exited |
|
1080 |
}; |
|
1081 |
||
1082 |
// In general a JavaThread's _terminated field transitions as follows: |
|
1083 |
// |
|
1084 |
// _not_terminated => _thread_exiting => _thread_terminated |
|
1085 |
// |
|
1086 |
// _vm_exited is a special value to cover the case of a JavaThread |
|
1087 |
// executing native code after the VM itself is terminated. |
|
7897
201a8b00ec91
6814943: getcpool001 catches more than one JvmtiThreadState problem
kamg
parents:
7724
diff
changeset
|
1088 |
volatile TerminatedTypes _terminated; |
1 | 1089 |
// suspend/resume support |
1090 |
volatile bool _suspend_equivalent; // Suspend equivalent condition |
|
1091 |
jint _in_deopt_handler; // count of deoptimization |
|
1092 |
// handlers thread is in |
|
1093 |
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
|
1094 |
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
|
1095 |
// never locked) when throwing an exception. Used by interpreter only. |
1 | 1096 |
|
10739 | 1097 |
// JNI attach states: |
1098 |
enum JNIAttachStates { |
|
1099 |
_not_attaching_via_jni = 1, // thread is not attaching via JNI |
|
1100 |
_attaching_via_jni, // thread is attaching via JNI |
|
1101 |
_attached_via_jni // thread has attached via JNI |
|
1102 |
}; |
|
1103 |
||
1104 |
// A regular JavaThread's _jni_attach_state is _not_attaching_via_jni. |
|
1105 |
// A native thread that is attaching via JNI starts with a value |
|
1106 |
// of _attaching_via_jni and transitions to _attached_via_jni. |
|
1107 |
volatile JNIAttachStates _jni_attach_state; |
|
1 | 1108 |
|
1109 |
public: |
|
1110 |
// State of the stack guard pages for this thread. |
|
1111 |
enum StackGuardState { |
|
1112 |
stack_guard_unused, // not needed |
|
35071
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34666
diff
changeset
|
1113 |
stack_guard_reserved_disabled, |
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1114 |
stack_guard_yellow_reserved_disabled,// disabled (temporarily) after stack overflow |
1 | 1115 |
stack_guard_enabled // enabled |
1116 |
}; |
|
1117 |
||
1118 |
private: |
|
1119 |
||
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1120 |
#if INCLUDE_JVMCI |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1121 |
// The _pending_* fields below are used to communicate extra information |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1122 |
// 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
|
1123 |
|
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1124 |
// Communicates the DeoptReason and DeoptAction of the uncommon trap |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1125 |
int _pending_deoptimization; |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1126 |
|
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1127 |
// 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
|
1128 |
// before the monitor has been acquired. |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1129 |
bool _pending_monitorenter; |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1130 |
|
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1131 |
// 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
|
1132 |
bool _pending_transfer_to_interpreter; |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1133 |
|
52033
d6aa9ea2405d
8208686: [AOT] JVMTI ResourceExhausted event repeated for same allocation
dnsimon
parents:
51743
diff
changeset
|
1134 |
// True if in a runtime call from compiled code that will deoptimize |
d6aa9ea2405d
8208686: [AOT] JVMTI ResourceExhausted event repeated for same allocation
dnsimon
parents:
51743
diff
changeset
|
1135 |
// and re-execute a failed heap allocation in the interpreter. |
d6aa9ea2405d
8208686: [AOT] JVMTI ResourceExhausted event repeated for same allocation
dnsimon
parents:
51743
diff
changeset
|
1136 |
bool _in_retryable_allocation; |
d6aa9ea2405d
8208686: [AOT] JVMTI ResourceExhausted event repeated for same allocation
dnsimon
parents:
51743
diff
changeset
|
1137 |
|
50858 | 1138 |
// An id of a speculation that JVMCI compiled code can use to further describe and |
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1139 |
// uniquely identify the speculative optimization guarded by the uncommon trap |
54669
ad45b3802d4e
8220623: [JVMCI] Update JVMCI to support JVMCI based Compiler compiled into shared library
kvn
parents:
54647
diff
changeset
|
1140 |
jlong _pending_failed_speculation; |
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1141 |
|
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1142 |
// These fields are mutually exclusive in terms of live ranges. |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1143 |
union { |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1144 |
// 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
|
1145 |
// from the signal handler to a deoptimization stub. |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1146 |
address _implicit_exception_pc; |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1147 |
|
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1148 |
// 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
|
1149 |
address _alternate_call_target; |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1150 |
} _jvmci; |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1151 |
|
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1152 |
// 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
|
1153 |
jlong* _jvmci_counters; |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1154 |
|
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1155 |
public: |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1156 |
static jlong* _jvmci_old_thread_counters; |
54732 | 1157 |
static void collect_counters(jlong* array, int length); |
58282
03fce7b04b42
8230395: Code checks for NULL value returned from NEW_C_HEAP_ARRAY which can not happen
dholmes
parents:
58243
diff
changeset
|
1158 |
void resize_counters(int current_size, int new_size); |
03fce7b04b42
8230395: Code checks for NULL value returned from NEW_C_HEAP_ARRAY which can not happen
dholmes
parents:
58243
diff
changeset
|
1159 |
static void resize_all_jvmci_counters(int new_size); |
55206 | 1160 |
|
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1161 |
private: |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1162 |
#endif // INCLUDE_JVMCI |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1163 |
|
22810
3a4dae5224c7
8017313: PPC64 (part 6): stack handling improvements
goetz
parents:
18025
diff
changeset
|
1164 |
StackGuardState _stack_guard_state; |
3a4dae5224c7
8017313: PPC64 (part 6): stack handling improvements
goetz
parents:
18025
diff
changeset
|
1165 |
|
3a4dae5224c7
8017313: PPC64 (part 6): stack handling improvements
goetz
parents:
18025
diff
changeset
|
1166 |
// 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
|
1167 |
// 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
|
1168 |
address _stack_overflow_limit; |
35071
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34666
diff
changeset
|
1169 |
address _reserved_stack_activation; |
1 | 1170 |
|
1171 |
// Compiler exception handling (NOTE: The _exception_oop is *NOT* the same as _pending_exception. It is |
|
1172 |
// used to temp. parsing values into and out of the runtime system during exception handling for compiled |
|
1173 |
// code) |
|
1174 |
volatile oop _exception_oop; // Exception thrown in compiled code |
|
1175 |
volatile address _exception_pc; // PC where exception happened |
|
1176 |
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
|
1177 |
volatile int _is_method_handle_return; // true (== 1) if the current exception PC is a MethodHandle call site. |
1 | 1178 |
|
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1179 |
private: |
1 | 1180 |
// support for JNI critical regions |
1181 |
jint _jni_active_critical; // count of entries into JNI critical region |
|
1182 |
||
25058
4542f853c2ac
8043224: -Xcheck:jni improvements to exception checking and excessive local refs
dsimms
parents:
24424
diff
changeset
|
1183 |
// Checked JNI: function name requires exception check |
4542f853c2ac
8043224: -Xcheck:jni improvements to exception checking and excessive local refs
dsimms
parents:
24424
diff
changeset
|
1184 |
char* _pending_jni_exception_check_fn; |
4542f853c2ac
8043224: -Xcheck:jni improvements to exception checking and excessive local refs
dsimms
parents:
24424
diff
changeset
|
1185 |
|
1 | 1186 |
// For deadlock detection. |
1187 |
int _depth_first_number; |
|
1188 |
||
1189 |
// JVMTI PopFrame support |
|
1190 |
// This is set to popframe_pending to signal that top Java frame should be popped immediately |
|
1191 |
int _popframe_condition; |
|
1192 |
||
28039
bf5a8340bf8a
6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents:
27917
diff
changeset
|
1193 |
// 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
|
1194 |
// 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
|
1195 |
// _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
|
1196 |
// failed reallocations. |
bf5a8340bf8a
6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents:
27917
diff
changeset
|
1197 |
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
|
1198 |
|
1 | 1199 |
friend class VMThread; |
1200 |
friend class ThreadWaitTransition; |
|
1201 |
friend class VM_Exit; |
|
1202 |
||
1203 |
void initialize(); // Initialized the instance variables |
|
1204 |
||
1205 |
public: |
|
1206 |
// Constructor |
|
10739 | 1207 |
JavaThread(bool is_attaching_via_jni = false); // for main thread and JNI attached threads |
1 | 1208 |
JavaThread(ThreadFunction entry_point, size_t stack_size = 0); |
1209 |
~JavaThread(); |
|
1210 |
||
1211 |
#ifdef ASSERT |
|
1212 |
// verify this JavaThread hasn't be published in the Threads::list yet |
|
1213 |
void verify_not_published(); |
|
57745 | 1214 |
#endif // ASSERT |
1 | 1215 |
|
1216 |
//JNI functiontable getter/setter for JVMTI jni function table interception API. |
|
1217 |
void set_jni_functions(struct JNINativeInterface_* functionTable) { |
|
1218 |
_jni_environment.functions = functionTable; |
|
1219 |
} |
|
1220 |
struct JNINativeInterface_* get_jni_functions() { |
|
1221 |
return (struct JNINativeInterface_ *)_jni_environment.functions; |
|
1222 |
} |
|
1223 |
||
6176
4d9030fe341f
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
5920
diff
changeset
|
1224 |
// This function is called at thread creation to allow |
4d9030fe341f
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
5920
diff
changeset
|
1225 |
// platform specific thread variables to be initialized. |
4d9030fe341f
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
5920
diff
changeset
|
1226 |
void cache_global_variables(); |
4d9030fe341f
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
5920
diff
changeset
|
1227 |
|
1 | 1228 |
// Executes Shutdown.shutdown() |
1229 |
void invoke_shutdown_hooks(); |
|
1230 |
||
1231 |
// Cleanup on thread exit |
|
1232 |
enum ExitType { |
|
1233 |
normal_exit, |
|
1234 |
jni_detach |
|
1235 |
}; |
|
1236 |
void exit(bool destroy_vm, ExitType exit_type = normal_exit); |
|
1237 |
||
54416
b788c494aa46
8218483: Crash in "assert(_daemon_threads_count->get_value() > daemon_count) failed: thread count mismatch 5 : 5"
dholmes
parents:
54385
diff
changeset
|
1238 |
void cleanup_failed_attach_current_thread(bool is_daemon); |
1 | 1239 |
|
1240 |
// Testers |
|
1241 |
virtual bool is_Java_thread() const { return true; } |
|
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1242 |
virtual bool can_call_java() const { return true; } |
1 | 1243 |
|
57699
4aea554692aa
8226228: Make Threads_lock an always safepoint checked lock.
rehn
parents:
57603
diff
changeset
|
1244 |
virtual bool is_active_Java_thread() const { |
4aea554692aa
8226228: Make Threads_lock an always safepoint checked lock.
rehn
parents:
57603
diff
changeset
|
1245 |
return on_thread_list() && !is_terminated(); |
4aea554692aa
8226228: Make Threads_lock an always safepoint checked lock.
rehn
parents:
57603
diff
changeset
|
1246 |
} |
4aea554692aa
8226228: Make Threads_lock an always safepoint checked lock.
rehn
parents:
57603
diff
changeset
|
1247 |
|
1 | 1248 |
// Thread oop. threadObj() can be NULL for initial JavaThread |
1249 |
// (or for threads attached via JNI) |
|
1250 |
oop threadObj() const { return _threadObj; } |
|
1251 |
void set_threadObj(oop p) { _threadObj = p; } |
|
1252 |
||
1253 |
// Prepare thread and add to priority queue. If a priority is |
|
1254 |
// not specified, use the priority of the thread object. Threads_lock |
|
1255 |
// must be held while this function is called. |
|
1256 |
void prepare(jobject jni_thread, ThreadPriority prio=NoPriority); |
|
1257 |
||
1258 |
void set_saved_exception_pc(address pc) { _saved_exception_pc = pc; } |
|
1259 |
address saved_exception_pc() { return _saved_exception_pc; } |
|
1260 |
||
1261 |
||
1262 |
ThreadFunction entry_point() const { return _entry_point; } |
|
1263 |
||
1264 |
// 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
|
1265 |
void allocate_threadObj(Handle thread_group, const char* thread_name, bool daemon, TRAPS); |
1 | 1266 |
|
1267 |
// Last frame anchor routines |
|
1268 |
||
22870
f939d9a0440d
8032634: Add #ifdef PPC64 around OrderAccess operations on _thread_state.
goetz
parents:
22859
diff
changeset
|
1269 |
JavaFrameAnchor* frame_anchor(void) { return &_anchor; } |
1 | 1270 |
|
1271 |
// last_Java_sp |
|
22870
f939d9a0440d
8032634: Add #ifdef PPC64 around OrderAccess operations on _thread_state.
goetz
parents:
22859
diff
changeset
|
1272 |
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
|
1273 |
intptr_t* last_Java_sp() const { return _anchor.last_Java_sp(); } |
1 | 1274 |
|
1275 |
// last_Java_pc |
|
1276 |
||
22870
f939d9a0440d
8032634: Add #ifdef PPC64 around OrderAccess operations on _thread_state.
goetz
parents:
22859
diff
changeset
|
1277 |
address last_Java_pc(void) { return _anchor.last_Java_pc(); } |
1 | 1278 |
|
1279 |
// Safepoint support |
|
24351
61b33cc6d3cf
8042195: Introduce umbrella header orderAccess.inline.hpp.
goetz
parents:
23855
diff
changeset
|
1280 |
inline JavaThreadState thread_state() const; |
61b33cc6d3cf
8042195: Introduce umbrella header orderAccess.inline.hpp.
goetz
parents:
23855
diff
changeset
|
1281 |
inline void set_thread_state(JavaThreadState s); |
54495
941db9c0b5b5
8222231: Clean up interfaceSupport.inline.hpp duplicated code
coleenp
parents:
54416
diff
changeset
|
1282 |
inline void set_thread_state_fence(JavaThreadState s); // fence after setting thread state |
52673 | 1283 |
inline ThreadSafepointState* safepoint_state() const; |
1284 |
inline void set_safepoint_state(ThreadSafepointState* state); |
|
1285 |
inline bool is_at_poll_safepoint(); |
|
1 | 1286 |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
1287 |
// JavaThread termination and lifecycle support: |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
1288 |
void smr_delete(); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
1289 |
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
|
1290 |
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
|
1291 |
|
1 | 1292 |
// 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
|
1293 |
bool is_exiting() const; |
1 | 1294 |
// thread is terminated (no longer on the threads list); we compare |
1295 |
// against the two non-terminated values so that a freed JavaThread |
|
1296 |
// will also be considered terminated. |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
1297 |
bool check_is_terminated(TerminatedTypes l_terminated) const { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
1298 |
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
|
1299 |
} |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
1300 |
bool is_terminated() const; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
1301 |
void set_terminated(TerminatedTypes t); |
1 | 1302 |
// special for Threads::remove() which is static: |
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
1303 |
void set_terminated_value(); |
1 | 1304 |
void block_if_vm_exited(); |
1305 |
||
1306 |
bool doing_unsafe_access() { return _doing_unsafe_access; } |
|
1307 |
void set_doing_unsafe_access(bool val) { _doing_unsafe_access = val; } |
|
1308 |
||
1309 |
bool do_not_unlock_if_synchronized() { return _do_not_unlock_if_synchronized; } |
|
1310 |
void set_do_not_unlock_if_synchronized(bool val) { _do_not_unlock_if_synchronized = val; } |
|
1311 |
||
50921
7f462e8383f6
8206003: SafepointSynchronize with TLH: StoreStore barriers should be moved out of the loop
mdoerr
parents:
50858
diff
changeset
|
1312 |
inline void set_polling_page_release(void* poll_value); |
47881
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1313 |
inline void set_polling_page(void* poll_value); |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1314 |
inline volatile void* get_polling_page(); |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1315 |
|
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1316 |
private: |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1317 |
// Support for thread handshake operations |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1318 |
HandshakeState _handshake; |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1319 |
public: |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1320 |
void set_handshake_operation(HandshakeOperation* op) { |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1321 |
_handshake.set_operation(this, op); |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1322 |
} |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1323 |
|
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1324 |
bool has_handshake() const { |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1325 |
return _handshake.has_operation(); |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1326 |
} |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1327 |
|
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1328 |
void handshake_process_by_self() { |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1329 |
_handshake.process_by_self(this); |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1330 |
} |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1331 |
|
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1332 |
void handshake_process_by_vmthread() { |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1333 |
_handshake.process_by_vmthread(this); |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1334 |
} |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47765
diff
changeset
|
1335 |
|
1 | 1336 |
// Suspend/resume support for JavaThread |
1337 |
private: |
|
25351
7c198a690050
8044775: Improve usage of umbrella header atomic.inline.hpp.
goetz
parents:
25064
diff
changeset
|
1338 |
inline void set_ext_suspended(); |
7c198a690050
8044775: Improve usage of umbrella header atomic.inline.hpp.
goetz
parents:
25064
diff
changeset
|
1339 |
inline void clear_ext_suspended(); |
1 | 1340 |
|
1341 |
public: |
|
54259 | 1342 |
void java_suspend(); // higher-level suspension logic called by the public APIs |
1343 |
void java_resume(); // higher-level resume logic called by the public APIs |
|
1344 |
int java_suspend_self(); // low-level self-suspension mechanics |
|
1 | 1345 |
|
54259 | 1346 |
private: |
1347 |
// mid-level wrapper around java_suspend_self to set up correct state and |
|
1348 |
// check for a pending safepoint at the end |
|
1349 |
void java_suspend_self_with_safepoint_check(); |
|
1350 |
||
1351 |
public: |
|
1 | 1352 |
void check_and_wait_while_suspended() { |
1353 |
assert(JavaThread::current() == this, "sanity check"); |
|
1354 |
||
1355 |
bool do_self_suspend; |
|
1356 |
do { |
|
1357 |
// were we externally suspended while we were waiting? |
|
1358 |
do_self_suspend = handle_special_suspend_equivalent_condition(); |
|
1359 |
if (do_self_suspend) { |
|
1360 |
// don't surprise the thread that suspended us by returning |
|
1361 |
java_suspend_self(); |
|
1362 |
set_suspend_equivalent(); |
|
1363 |
} |
|
1364 |
} while (do_self_suspend); |
|
1365 |
} |
|
1366 |
static void check_safepoint_and_suspend_for_native_trans(JavaThread *thread); |
|
1367 |
// Check for async exception in addition to safepoint and suspend request. |
|
1368 |
static void check_special_condition_for_native_trans(JavaThread *thread); |
|
1369 |
||
11637
030466036615
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
11631
diff
changeset
|
1370 |
// 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
|
1371 |
// 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
|
1372 |
// block. |
030466036615
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
11631
diff
changeset
|
1373 |
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
|
1374 |
|
1 | 1375 |
bool is_ext_suspend_completed(bool called_by_wait, int delay, uint32_t *bits); |
1376 |
bool is_ext_suspend_completed_with_lock(uint32_t *bits) { |
|
54623
1126f0607c70
8222811: Consolidate MutexLockerEx and MutexLocker
coleenp
parents:
54562
diff
changeset
|
1377 |
MutexLocker ml(SR_lock(), Mutex::_no_safepoint_check_flag); |
1 | 1378 |
// Warning: is_ext_suspend_completed() may temporarily drop the |
1379 |
// SR_lock to allow the thread to reach a stable thread state if |
|
1380 |
// 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
|
1381 |
return is_ext_suspend_completed(false /* !called_by_wait */, |
1 | 1382 |
SuspendRetryDelay, bits); |
1383 |
} |
|
1384 |
||
1385 |
// We cannot allow wait_for_ext_suspend_completion() to run forever or |
|
1386 |
// we could hang. SuspendRetryCount and SuspendRetryDelay are normally |
|
1387 |
// passed as the count and delay parameters. Experiments with specific |
|
1388 |
// calls to wait_for_ext_suspend_completion() can be done by passing |
|
1389 |
// other values in the code. Experiments with all calls can be done |
|
1390 |
// via the appropriate -XX options. |
|
1391 |
bool wait_for_ext_suspend_completion(int count, int delay, uint32_t *bits); |
|
1392 |
||
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
1393 |
// 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
|
1394 |
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
|
1395 |
|
25351
7c198a690050
8044775: Improve usage of umbrella header atomic.inline.hpp.
goetz
parents:
25064
diff
changeset
|
1396 |
inline void set_external_suspend(); |
7c198a690050
8044775: Improve usage of umbrella header atomic.inline.hpp.
goetz
parents:
25064
diff
changeset
|
1397 |
inline void clear_external_suspend(); |
1 | 1398 |
|
1399 |
bool is_external_suspend() const { |
|
1400 |
return (_suspend_flags & _external_suspend) != 0; |
|
1401 |
} |
|
1402 |
// Whenever a thread transitions from native to vm/java it must suspend |
|
1403 |
// if external|deopt suspend is present. |
|
1404 |
bool is_suspend_after_native() const { |
|
54631 | 1405 |
return (_suspend_flags & (_external_suspend JFR_ONLY(| _trace_flag))) != 0; |
1 | 1406 |
} |
1407 |
||
1408 |
// external suspend request is completed |
|
1409 |
bool is_ext_suspended() const { |
|
1410 |
return (_suspend_flags & _ext_suspended) != 0; |
|
1411 |
} |
|
1412 |
||
1413 |
bool is_external_suspend_with_lock() const { |
|
54623
1126f0607c70
8222811: Consolidate MutexLockerEx and MutexLocker
coleenp
parents:
54562
diff
changeset
|
1414 |
MutexLocker ml(SR_lock(), Mutex::_no_safepoint_check_flag); |
1 | 1415 |
return is_external_suspend(); |
1416 |
} |
|
1417 |
||
1418 |
// Special method to handle a pending external suspend request |
|
1419 |
// when a suspend equivalent condition lifts. |
|
1420 |
bool handle_special_suspend_equivalent_condition() { |
|
1421 |
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
|
1422 |
"should only be called in a suspend equivalence condition"); |
54623
1126f0607c70
8222811: Consolidate MutexLockerEx and MutexLocker
coleenp
parents:
54562
diff
changeset
|
1423 |
MutexLocker ml(SR_lock(), Mutex::_no_safepoint_check_flag); |
1 | 1424 |
bool ret = is_external_suspend(); |
1425 |
if (!ret) { |
|
1426 |
// not about to self-suspend so clear suspend equivalence |
|
1427 |
clear_suspend_equivalent(); |
|
1428 |
} |
|
1429 |
// implied else: |
|
1430 |
// We have a pending external suspend request so we leave the |
|
1431 |
// suspend_equivalent flag set until java_suspend_self() sets |
|
1432 |
// the ext_suspended flag and clears the suspend_equivalent |
|
1433 |
// flag. This insures that wait_for_ext_suspend_completion() |
|
1434 |
// will return consistent values. |
|
1435 |
return ret; |
|
1436 |
} |
|
1437 |
||
1438 |
// utility methods to see if we are doing some kind of suspension |
|
1439 |
bool is_being_ext_suspended() const { |
|
54623
1126f0607c70
8222811: Consolidate MutexLockerEx and MutexLocker
coleenp
parents:
54562
diff
changeset
|
1440 |
MutexLocker ml(SR_lock(), Mutex::_no_safepoint_check_flag); |
1 | 1441 |
return is_ext_suspended() || is_external_suspend(); |
1442 |
} |
|
1443 |
||
1444 |
bool is_suspend_equivalent() const { return _suspend_equivalent; } |
|
1445 |
||
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1446 |
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
|
1447 |
void clear_suspend_equivalent() { _suspend_equivalent = false; } |
1 | 1448 |
|
1449 |
// Thread.stop support |
|
1450 |
void send_thread_stop(oop throwable); |
|
1451 |
AsyncRequests clear_special_runtime_exit_condition() { |
|
1452 |
AsyncRequests x = _special_runtime_exit_condition; |
|
1453 |
_special_runtime_exit_condition = _no_async_condition; |
|
1454 |
return x; |
|
1455 |
} |
|
1456 |
||
1457 |
// Are any async conditions present? |
|
1458 |
bool has_async_condition() { return (_special_runtime_exit_condition != _no_async_condition); } |
|
1459 |
||
1460 |
void check_and_handle_async_exceptions(bool check_unsafe_error = true); |
|
1461 |
||
1462 |
// these next two are also used for self-suspension and async exception support |
|
1463 |
void handle_special_runtime_exit_condition(bool check_asyncs = true); |
|
1464 |
||
1465 |
// Return true if JavaThread has an asynchronous condition or |
|
1466 |
// if external suspension is requested. |
|
1467 |
bool has_special_runtime_exit_condition() { |
|
46643 | 1468 |
// Because we don't use is_external_suspend_with_lock |
1 | 1469 |
// it is possible that we won't see an asynchronous external suspend |
1470 |
// request that has just gotten started, i.e., SR_lock grabbed but |
|
1471 |
// _external_suspend field change either not made yet or not visible |
|
1472 |
// yet. However, this is okay because the request is asynchronous and |
|
1473 |
// we will see the new flag value the next time through. It's also |
|
1474 |
// possible that the external suspend request is dropped after |
|
1475 |
// we have checked is_external_suspend(), we will recheck its value |
|
1476 |
// under SR_lock in java_suspend_self(). |
|
1477 |
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
|
1478 |
is_external_suspend() || is_trace_suspend(); |
1 | 1479 |
} |
1480 |
||
1481 |
void set_pending_unsafe_access_error() { _special_runtime_exit_condition = _async_unsafe_access_error; } |
|
1482 |
||
25351
7c198a690050
8044775: Improve usage of umbrella header atomic.inline.hpp.
goetz
parents:
25064
diff
changeset
|
1483 |
inline void set_pending_async_exception(oop e); |
1 | 1484 |
|
1485 |
// Fast-locking support |
|
1486 |
bool is_lock_owned(address adr) const; |
|
1487 |
||
1488 |
// Accessors for vframe array top |
|
1489 |
// The linked list of vframe arrays are sorted on sp. This means when we |
|
1490 |
// unpack the head must contain the vframe array to unpack. |
|
1491 |
void set_vframe_array_head(vframeArray* value) { _vframe_array_head = value; } |
|
1492 |
vframeArray* vframe_array_head() const { return _vframe_array_head; } |
|
1493 |
||
22551 | 1494 |
// Side structure for deferring update of java frame locals until deopt occurs |
1 | 1495 |
GrowableArray<jvmtiDeferredLocalVariableSet*>* deferred_locals() const { return _deferred_locals_updates; } |
1496 |
void set_deferred_locals(GrowableArray<jvmtiDeferredLocalVariableSet *>* vf) { _deferred_locals_updates = vf; } |
|
1497 |
||
1498 |
// These only really exist to make debugging deopt problems simpler |
|
1499 |
||
1500 |
void set_vframe_array_last(vframeArray* value) { _vframe_array_last = value; } |
|
1501 |
vframeArray* vframe_array_last() const { return _vframe_array_last; } |
|
1502 |
||
1503 |
// The special resourceMark used during deoptimization |
|
1504 |
||
1505 |
void set_deopt_mark(DeoptResourceMark* value) { _deopt_mark = value; } |
|
1506 |
DeoptResourceMark* deopt_mark(void) { return _deopt_mark; } |
|
1507 |
||
38133
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
37474
diff
changeset
|
1508 |
void set_deopt_compiled_method(CompiledMethod* nm) { _deopt_nmethod = nm; } |
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
37474
diff
changeset
|
1509 |
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
|
1510 |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
1511 |
Method* callee_target() const { return _callee_target; } |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
1512 |
void set_callee_target (Method* x) { _callee_target = x; } |
1 | 1513 |
|
1514 |
// Oop results of vm runtime calls |
|
1515 |
oop vm_result() const { return _vm_result; } |
|
1516 |
void set_vm_result (oop x) { _vm_result = x; } |
|
1517 |
||
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
1518 |
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
|
1519 |
void set_vm_result_2 (Metadata* x) { _vm_result_2 = x; } |
1 | 1520 |
|
4030
4c471254865e
6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning
ysr
parents:
3916
diff
changeset
|
1521 |
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
|
1522 |
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
|
1523 |
|
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1524 |
#if INCLUDE_JVMCI |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1525 |
int pending_deoptimization() const { return _pending_deoptimization; } |
54669
ad45b3802d4e
8220623: [JVMCI] Update JVMCI to support JVMCI based Compiler compiled into shared library
kvn
parents:
54647
diff
changeset
|
1526 |
jlong pending_failed_speculation() const { return _pending_failed_speculation; } |
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1527 |
bool has_pending_monitorenter() const { return _pending_monitorenter; } |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1528 |
void set_pending_monitorenter(bool b) { _pending_monitorenter = b; } |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1529 |
void set_pending_deoptimization(int reason) { _pending_deoptimization = reason; } |
54669
ad45b3802d4e
8220623: [JVMCI] Update JVMCI to support JVMCI based Compiler compiled into shared library
kvn
parents:
54647
diff
changeset
|
1530 |
void set_pending_failed_speculation(jlong failed_speculation) { _pending_failed_speculation = failed_speculation; } |
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1531 |
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
|
1532 |
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
|
1533 |
void set_jvmci_implicit_exception_pc(address a) { assert(_jvmci._implicit_exception_pc == NULL, "must be"); _jvmci._implicit_exception_pc = a; } |
52033
d6aa9ea2405d
8208686: [AOT] JVMTI ResourceExhausted event repeated for same allocation
dnsimon
parents:
51743
diff
changeset
|
1534 |
|
d6aa9ea2405d
8208686: [AOT] JVMTI ResourceExhausted event repeated for same allocation
dnsimon
parents:
51743
diff
changeset
|
1535 |
virtual bool in_retryable_allocation() const { return _in_retryable_allocation; } |
d6aa9ea2405d
8208686: [AOT] JVMTI ResourceExhausted event repeated for same allocation
dnsimon
parents:
51743
diff
changeset
|
1536 |
void set_in_retryable_allocation(bool b) { _in_retryable_allocation = b; } |
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1537 |
#endif // INCLUDE_JVMCI |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1538 |
|
1 | 1539 |
// Exception handling for compiled methods |
1540 |
oop exception_oop() const { return _exception_oop; } |
|
1541 |
address exception_pc() const { return _exception_pc; } |
|
1542 |
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
|
1543 |
bool is_method_handle_return() const { return _is_method_handle_return == 1; } |
1 | 1544 |
|
20282
7f9cbdf89af2
7195622: CheckUnhandledOops has limited usefulness now
hseigel
parents:
19696
diff
changeset
|
1545 |
void set_exception_oop(oop o) { (void)const_cast<oop&>(_exception_oop = o); } |
1 | 1546 |
void set_exception_pc(address a) { _exception_pc = a; } |
1547 |
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
|
1548 |
void set_is_method_handle_return(bool value) { _is_method_handle_return = value ? 1 : 0; } |
1 | 1549 |
|
20703
2de7fe0e9693
8005173: assert(false) failed: DEBUG MESSAGE: exception oop must be empty (macroAssembler_x86.cpp:625)
twisti
parents:
20282
diff
changeset
|
1550 |
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
|
1551 |
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
|
1552 |
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
|
1553 |
} |
2de7fe0e9693
8005173: assert(false) failed: DEBUG MESSAGE: exception oop must be empty (macroAssembler_x86.cpp:625)
twisti
parents:
20282
diff
changeset
|
1554 |
|
1 | 1555 |
// Stack overflow support |
35201
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 |
// (small addresses) |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1558 |
// |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1559 |
// -- <-- stack_end() --- |
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 |
// | red pages | |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1562 |
// | | |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1563 |
// -- <-- stack_red_zone_base() | |
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 |
// | guard |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1566 |
// | yellow pages zone |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1567 |
// | | |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1568 |
// | | |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1569 |
// -- <-- stack_yellow_zone_base() | |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1570 |
// | | |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1571 |
// | | |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1572 |
// | reserved pages | |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1573 |
// | | |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1574 |
// -- <-- stack_reserved_zone_base() --- --- |
38734
69ced2325f58
8156922: [ppc] Implement template interpreter stack overflow checks as on x86/sparc.
goetz
parents:
38697
diff
changeset
|
1575 |
// /|\ shadow <-- stack_overflow_limit() (somewhere in here) |
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1576 |
// | zone |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1577 |
// \|/ size |
38734
69ced2325f58
8156922: [ppc] Implement template interpreter stack overflow checks as on x86/sparc.
goetz
parents:
38697
diff
changeset
|
1578 |
// some untouched memory --- |
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1579 |
// |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1580 |
// |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1581 |
// -- |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1582 |
// | |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1583 |
// | shadow zone |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1584 |
// | |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1585 |
// -- |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1586 |
// x frame n |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1587 |
// -- |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1588 |
// x frame n-1 |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1589 |
// x |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1590 |
// -- |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1591 |
// ... |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1592 |
// |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1593 |
// -- |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1594 |
// x frame 0 |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1595 |
// -- <-- stack_base() |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1596 |
// |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1597 |
// (large addresses) |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1598 |
// |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1599 |
|
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1600 |
private: |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1601 |
// These values are derived from flags StackRedPages, StackYellowPages, |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1602 |
// StackReservedPages and StackShadowPages. The zone size is determined |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1603 |
// ergonomically if page_size > 4K. |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1604 |
static size_t _stack_red_zone_size; |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1605 |
static size_t _stack_yellow_zone_size; |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1606 |
static size_t _stack_reserved_zone_size; |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1607 |
static size_t _stack_shadow_zone_size; |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1608 |
public: |
1 | 1609 |
inline size_t stack_available(address cur_sp); |
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1610 |
|
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1611 |
static size_t stack_red_zone_size() { |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1612 |
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
|
1613 |
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
|
1614 |
} |
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1615 |
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
|
1616 |
assert(is_aligned(s, os::vm_page_size()), |
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1617 |
"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
|
1618 |
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
|
1619 |
_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
|
1620 |
} |
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1621 |
address stack_red_zone_base() { |
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1622 |
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
|
1623 |
} |
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1624 |
bool in_stack_red_zone(address a) { |
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1625 |
return a <= stack_red_zone_base() && a >= stack_end(); |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1626 |
} |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1627 |
|
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1628 |
static size_t stack_yellow_zone_size() { |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1629 |
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
|
1630 |
return _stack_yellow_zone_size; |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1631 |
} |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1632 |
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
|
1633 |
assert(is_aligned(s, os::vm_page_size()), |
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1634 |
"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
|
1635 |
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
|
1636 |
_stack_yellow_zone_size = s; |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1637 |
} |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1638 |
|
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1639 |
static size_t stack_reserved_zone_size() { |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1640 |
// _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
|
1641 |
return _stack_reserved_zone_size; |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1642 |
} |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1643 |
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
|
1644 |
assert(is_aligned(s, os::vm_page_size()), |
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1645 |
"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
|
1646 |
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
|
1647 |
_stack_reserved_zone_size = s; |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1648 |
} |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1649 |
address stack_reserved_zone_base() { |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1650 |
return (address)(stack_end() + |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1651 |
(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
|
1652 |
} |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1653 |
bool in_stack_reserved_zone(address a) { |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1654 |
return (a <= stack_reserved_zone_base()) && |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1655 |
(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
|
1656 |
} |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1657 |
|
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1658 |
static size_t stack_yellow_reserved_zone_size() { |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1659 |
return _stack_yellow_zone_size + _stack_reserved_zone_size; |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1660 |
} |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1661 |
bool in_stack_yellow_reserved_zone(address a) { |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1662 |
return (a <= stack_reserved_zone_base()) && (a >= stack_red_zone_base()); |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1663 |
} |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1664 |
|
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1665 |
// Size of red + yellow + reserved zones. |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1666 |
static size_t stack_guard_zone_size() { |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1667 |
return stack_red_zone_size() + stack_yellow_reserved_zone_size(); |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1668 |
} |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1669 |
|
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1670 |
static size_t stack_shadow_zone_size() { |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1671 |
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
|
1672 |
return _stack_shadow_zone_size; |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1673 |
} |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1674 |
static void set_stack_shadow_zone_size(size_t s) { |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1675 |
// The shadow area is not allocated or protected, so |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1676 |
// it needs not be page aligned. |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1677 |
// But the stack bang currently assumes that it is a |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1678 |
// multiple of page size. This guarantees that the bang |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1679 |
// loop touches all pages in the shadow zone. |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1680 |
// This can be guaranteed differently, as well. E.g., if |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1681 |
// 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
|
1682 |
// suffices to touch all pages. (Some pages are banged |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1683 |
// several times, though.) |
46619
a3919f5e8d2b
8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents:
41084
diff
changeset
|
1684 |
assert(is_aligned(s, os::vm_page_size()), |
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1685 |
"Stack bang assumes multiple of page size."); |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1686 |
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
|
1687 |
_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
|
1688 |
} |
1 | 1689 |
|
1690 |
void create_stack_guard_pages(); |
|
1691 |
void remove_stack_guard_pages(); |
|
1692 |
||
35071
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34666
diff
changeset
|
1693 |
void enable_stack_reserved_zone(); |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34666
diff
changeset
|
1694 |
void disable_stack_reserved_zone(); |
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1695 |
void enable_stack_yellow_reserved_zone(); |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1696 |
void disable_stack_yellow_reserved_zone(); |
1 | 1697 |
void enable_stack_red_zone(); |
1698 |
void disable_stack_red_zone(); |
|
1699 |
||
15926
8e87d545195f
7107135: Stack guard pages are no more protected after loading a shared library with executable stack
iklam
parents:
15482
diff
changeset
|
1700 |
inline bool stack_guard_zone_unused(); |
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1701 |
inline bool stack_yellow_reserved_zone_disabled(); |
35071
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34666
diff
changeset
|
1702 |
inline bool stack_reserved_zone_disabled(); |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34666
diff
changeset
|
1703 |
inline bool stack_guards_enabled(); |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34666
diff
changeset
|
1704 |
|
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34666
diff
changeset
|
1705 |
address reserved_stack_activation() const { return _reserved_stack_activation; } |
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1706 |
void set_reserved_stack_activation(address addr) { |
35071
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34666
diff
changeset
|
1707 |
assert(_reserved_stack_activation == stack_base() |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34666
diff
changeset
|
1708 |
|| _reserved_stack_activation == NULL |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34666
diff
changeset
|
1709 |
|| addr == stack_base(), "Must not be set twice"); |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34666
diff
changeset
|
1710 |
_reserved_stack_activation = addr; |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34666
diff
changeset
|
1711 |
} |
1 | 1712 |
|
1713 |
// Attempt to reguard the stack after a stack overflow may have occurred. |
|
1714 |
// Returns true if (a) guard pages are not needed on this thread, (b) the |
|
1715 |
// pages are already guarded, or (c) the pages were successfully reguarded. |
|
1716 |
// Returns false if there is not enough stack space to reguard the pages, in |
|
1717 |
// which case the caller should unwind a frame and try again. The argument |
|
1718 |
// should be the caller's (approximate) sp. |
|
1719 |
bool reguard_stack(address cur_sp); |
|
1720 |
// Similar to above but see if current stackpoint is out of the guard area |
|
1721 |
// and reguard if possible. |
|
1722 |
bool reguard_stack(void); |
|
1723 |
||
22810
3a4dae5224c7
8017313: PPC64 (part 6): stack handling improvements
goetz
parents:
18025
diff
changeset
|
1724 |
address stack_overflow_limit() { return _stack_overflow_limit; } |
3a4dae5224c7
8017313: PPC64 (part 6): stack handling improvements
goetz
parents:
18025
diff
changeset
|
1725 |
void set_stack_overflow_limit() { |
38734
69ced2325f58
8156922: [ppc] Implement template interpreter stack overflow checks as on x86/sparc.
goetz
parents:
38697
diff
changeset
|
1726 |
_stack_overflow_limit = |
69ced2325f58
8156922: [ppc] Implement template interpreter stack overflow checks as on x86/sparc.
goetz
parents:
38697
diff
changeset
|
1727 |
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
|
1728 |
} |
3a4dae5224c7
8017313: PPC64 (part 6): stack handling improvements
goetz
parents:
18025
diff
changeset
|
1729 |
|
1 | 1730 |
// Misc. accessors/mutators |
1731 |
void set_do_not_unlock(void) { _do_not_unlock_if_synchronized = true; } |
|
1732 |
void clr_do_not_unlock(void) { _do_not_unlock_if_synchronized = false; } |
|
1733 |
bool do_not_unlock(void) { return _do_not_unlock_if_synchronized; } |
|
1734 |
||
1735 |
// For assembly stub generation |
|
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
1736 |
static ByteSize threadObj_offset() { return byte_offset_of(JavaThread, _threadObj); } |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
1737 |
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
|
1738 |
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
|
1739 |
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
|
1740 |
} |
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
1741 |
static ByteSize last_Java_sp_offset() { |
1 | 1742 |
return byte_offset_of(JavaThread, _anchor) + JavaFrameAnchor::last_Java_sp_offset(); |
1743 |
} |
|
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
1744 |
static ByteSize last_Java_pc_offset() { |
1 | 1745 |
return byte_offset_of(JavaThread, _anchor) + JavaFrameAnchor::last_Java_pc_offset(); |
1746 |
} |
|
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
1747 |
static ByteSize frame_anchor_offset() { |
1 | 1748 |
return byte_offset_of(JavaThread, _anchor); |
1749 |
} |
|
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
1750 |
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
|
1751 |
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
|
1752 |
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
|
1753 |
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
|
1754 |
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
|
1755 |
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
|
1756 |
#if INCLUDE_JVMCI |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
1757 |
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
|
1758 |
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
|
1759 |
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
|
1760 |
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
|
1761 |
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
|
1762 |
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
|
1763 |
#endif // INCLUDE_JVMCI |
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
1764 |
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
|
1765 |
static ByteSize exception_pc_offset() { return byte_offset_of(JavaThread, _exception_pc); } |
1 | 1766 |
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
|
1767 |
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
|
1768 |
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
|
1769 |
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
|
1770 |
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
|
1771 |
static ByteSize suspend_flags_offset() { return byte_offset_of(JavaThread, _suspend_flags); } |
1 | 1772 |
|
1773 |
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
|
1774 |
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
|
1775 |
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
|
1776 |
} |
55490
3f3dc00a69a5
8191278: MappedByteBuffer bulk access memory failures are not handled gracefully
jcm
parents:
55479
diff
changeset
|
1777 |
static ByteSize doing_unsafe_access_offset() { return byte_offset_of(JavaThread, _doing_unsafe_access); } |
1 | 1778 |
|
1779 |
// Returns the jni environment for this thread |
|
1780 |
JNIEnv* jni_environment() { return &_jni_environment; } |
|
1781 |
||
1782 |
static JavaThread* thread_from_jni_environment(JNIEnv* env) { |
|
1783 |
JavaThread *thread_from_jni_env = (JavaThread*)((intptr_t)env - in_bytes(jni_environment_offset())); |
|
1784 |
// Only return NULL if thread is off the thread list; starting to |
|
1785 |
// exit should not return NULL. |
|
1786 |
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
|
1787 |
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
|
1788 |
return NULL; |
1 | 1789 |
} else { |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1790 |
return thread_from_jni_env; |
1 | 1791 |
} |
1792 |
} |
|
1793 |
||
1794 |
// JNI critical regions. These can nest. |
|
1795 |
bool in_critical() { return _jni_active_critical > 0; } |
|
11631
33813f69207b
7129164: JNI Get/ReleasePrimitiveArrayCritical doesn't scale
never
parents:
11480
diff
changeset
|
1796 |
bool in_last_critical() { return _jni_active_critical == 1; } |
52673 | 1797 |
inline void enter_critical(); |
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1798 |
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
|
1799 |
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
|
1800 |
_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
|
1801 |
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
|
1802 |
} |
1 | 1803 |
|
41084
fc5db29fa08e
8164086: Checked JNI pending exception check should be cleared when returning to Java frame
dsimms
parents:
40010
diff
changeset
|
1804 |
// 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
|
1805 |
// 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
|
1806 |
// 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
|
1807 |
// 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
|
1808 |
// 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
|
1809 |
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
|
1810 |
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
|
1811 |
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
|
1812 |
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
|
1813 |
|
1 | 1814 |
// For deadlock detection |
1815 |
int depth_first_number() { return _depth_first_number; } |
|
1816 |
void set_depth_first_number(int dfn) { _depth_first_number = dfn; } |
|
1817 |
||
1818 |
private: |
|
1819 |
void set_monitor_chunks(MonitorChunk* monitor_chunks) { _monitor_chunks = monitor_chunks; } |
|
1820 |
||
1821 |
public: |
|
1822 |
MonitorChunk* monitor_chunks() const { return _monitor_chunks; } |
|
1823 |
void add_monitor_chunk(MonitorChunk* chunk); |
|
1824 |
void remove_monitor_chunk(MonitorChunk* chunk); |
|
1825 |
bool in_deopt_handler() const { return _in_deopt_handler > 0; } |
|
1826 |
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
|
1827 |
void dec_in_deopt_handler() { |
1 | 1828 |
assert(_in_deopt_handler > 0, "mismatched deopt nesting"); |
1829 |
if (_in_deopt_handler > 0) { // robustness |
|
1830 |
_in_deopt_handler--; |
|
1831 |
} |
|
1832 |
} |
|
1833 |
||
1834 |
private: |
|
1835 |
void set_entry_point(ThreadFunction entry_point) { _entry_point = entry_point; } |
|
1836 |
||
1837 |
public: |
|
1838 |
||
1839 |
// Frame iteration; calls the function f for all frames on the stack |
|
1840 |
void frames_do(void f(frame*, const RegisterMap*)); |
|
1841 |
||
1842 |
// Memory operations |
|
38074
8475fdc6dcc3
8154580: Save mirror in interpreter frame to enable cleanups of CLDClosure
coleenp
parents:
37474
diff
changeset
|
1843 |
void oops_do(OopClosure* f, CodeBlobClosure* cf); |
1 | 1844 |
|
1845 |
// Sweeper operations |
|
37288
a31d47bbbdf6
8074553: Crash with assert(!is_unloaded()) failed: should not call follow on unloaded nmethod
thartmann
parents:
36384
diff
changeset
|
1846 |
virtual void nmethods_do(CodeBlobClosure* cf); |
1 | 1847 |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
1848 |
// RedefineClasses Support |
54150
5529640c5f67
8220512: Deoptimize redefinition functions that have dirty ICs
coleenp
parents:
54015
diff
changeset
|
1849 |
void metadata_do(MetadataClosure* f); |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
1850 |
|
54278 | 1851 |
// Debug method asserting thread states are correct during a handshake operation. |
1852 |
DEBUG_ONLY(void verify_states_for_handshake();) |
|
1853 |
||
1 | 1854 |
// Misc. operations |
1855 |
char* name() const { return (char*)get_thread_name(); } |
|
50785
d1b24f2ceca5
8200720: Print additional information in thread dump (times, allocated bytes etc.)
ghaug
parents:
50578
diff
changeset
|
1856 |
void print_on(outputStream* st, bool print_extended_info) const; |
d1b24f2ceca5
8200720: Print additional information in thread dump (times, allocated bytes etc.)
ghaug
parents:
50578
diff
changeset
|
1857 |
void print_on(outputStream* st) const { print_on(st, false); } |
54807 | 1858 |
void print() const; |
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1859 |
void print_thread_state_on(outputStream*) const PRODUCT_RETURN; |
1 | 1860 |
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
|
1861 |
void print_name_on_error(outputStream* st, char* buf, int buflen) const; |
1 | 1862 |
void verify(); |
1863 |
const char* get_thread_name() const; |
|
53103
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1864 |
protected: |
1 | 1865 |
// factor out low-level mechanics for use in both normal and error cases |
53103
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1866 |
virtual 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
|
1867 |
public: |
1 | 1868 |
// Accessing frames |
1869 |
frame last_frame() { |
|
1870 |
_anchor.make_walkable(this); |
|
1871 |
return pd_last_frame(); |
|
1872 |
} |
|
1873 |
javaVFrame* last_java_vframe(RegisterMap* reg_map); |
|
1874 |
||
1875 |
// Returns method at 'depth' java or native frames down the stack |
|
1876 |
// Used for security checks |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
1877 |
Klass* security_get_caller_class(int depth); |
1 | 1878 |
|
1879 |
// Print stack trace in external format |
|
1880 |
void print_stack_on(outputStream* st); |
|
1881 |
void print_stack() { print_stack_on(tty); } |
|
1882 |
||
1883 |
// Print stack traces in various internal formats |
|
1884 |
void trace_stack() PRODUCT_RETURN; |
|
1885 |
void trace_stack_from(vframe* start_vf) PRODUCT_RETURN; |
|
1886 |
void trace_frames() PRODUCT_RETURN; |
|
1887 |
||
9437
9981851b4b8c
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents:
8110
diff
changeset
|
1888 |
// Print an annotated view of the stack frames |
9942
2e86734ba620
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
9437
diff
changeset
|
1889 |
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
|
1890 |
void validate_frame_layout() { |
9981851b4b8c
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents:
8110
diff
changeset
|
1891 |
print_frame_layout(0, true); |
9981851b4b8c
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents:
8110
diff
changeset
|
1892 |
} |
9981851b4b8c
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents:
8110
diff
changeset
|
1893 |
|
1 | 1894 |
// Function for testing deoptimization |
1895 |
void deoptimize(); |
|
1896 |
void make_zombies(); |
|
1897 |
||
58226 | 1898 |
void deoptimize_marked_methods(); |
1 | 1899 |
|
1900 |
public: |
|
1901 |
// Returns the running thread as a JavaThread |
|
1902 |
static inline JavaThread* current(); |
|
1903 |
||
1904 |
// Returns the active Java thread. Do not use this if you know you are calling |
|
1905 |
// from a JavaThread, as it's slower than JavaThread::current. If called from |
|
1906 |
// the VMThread, it also returns the JavaThread that instigated the VMThread's |
|
1907 |
// operation. You may not want that either. |
|
1908 |
static JavaThread* active(); |
|
1909 |
||
1910 |
inline CompilerThread* as_CompilerThread(); |
|
1911 |
||
53103
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1912 |
protected: |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1913 |
virtual void pre_run(); |
1 | 1914 |
virtual void run(); |
1915 |
void thread_main_inner(); |
|
53103
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1916 |
virtual void post_run(); |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1917 |
|
1 | 1918 |
|
1919 |
private: |
|
1920 |
GrowableArray<oop>* _array_for_gc; |
|
1921 |
public: |
|
1922 |
||
1923 |
void register_array_for_gc(GrowableArray<oop>* array) { _array_for_gc = array; } |
|
1924 |
||
1925 |
public: |
|
1926 |
// Thread local information maintained by JVMTI. |
|
1927 |
void set_jvmti_thread_state(JvmtiThreadState *value) { _jvmti_thread_state = value; } |
|
2135
f82c3012ec86
6800721: 3/4 JavaThread::jvmti_thread_state() and JvmtiThreadState::state_for() robustness
dcubed
parents:
1623
diff
changeset
|
1928 |
// A JvmtiThreadState is lazily allocated. This jvmti_thread_state() |
f82c3012ec86
6800721: 3/4 JavaThread::jvmti_thread_state() and JvmtiThreadState::state_for() robustness
dcubed
parents:
1623
diff
changeset
|
1929 |
// 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
dcubed
parents:
1623
diff
changeset
|
1930 |
// one which means NULL can be returned. JvmtiThreadState::state_for() |
f82c3012ec86
6800721: 3/4 JavaThread::jvmti_thread_state() and JvmtiThreadState::state_for() robustness
dcubed
parents:
1623
diff
changeset
|
1931 |
// is used to get the specified JavaThread's JvmtiThreadState if it has |
f82c3012ec86
6800721: 3/4 JavaThread::jvmti_thread_state() and JvmtiThreadState::state_for() robustness
dcubed
parents:
1623
diff
changeset
|
1932 |
// one or it allocates a new JvmtiThreadState for the JavaThread and |
f82c3012ec86
6800721: 3/4 JavaThread::jvmti_thread_state() and JvmtiThreadState::state_for() robustness
dcubed
parents:
1623
diff
changeset
|
1933 |
// returns it. JvmtiThreadState::state_for() will return NULL only if |
f82c3012ec86
6800721: 3/4 JavaThread::jvmti_thread_state() and JvmtiThreadState::state_for() robustness
dcubed
parents:
1623
diff
changeset
|
1934 |
// the specified JavaThread is exiting. |
1 | 1935 |
JvmtiThreadState *jvmti_thread_state() const { return _jvmti_thread_state; } |
1936 |
static ByteSize jvmti_thread_state_offset() { return byte_offset_of(JavaThread, _jvmti_thread_state); } |
|
1937 |
||
1938 |
// JVMTI PopFrame support |
|
1939 |
// Setting and clearing popframe_condition |
|
1940 |
// All of these enumerated values are bits. popframe_pending |
|
1941 |
// indicates that a PopFrame() has been requested and not yet been |
|
1942 |
// completed. popframe_processing indicates that that PopFrame() is in |
|
1943 |
// the process of being completed. popframe_force_deopt_reexecution_bit |
|
1944 |
// indicates that special handling is required when returning to a |
|
1945 |
// deoptimized caller. |
|
1946 |
enum PopCondition { |
|
1947 |
popframe_inactive = 0x00, |
|
1948 |
popframe_pending_bit = 0x01, |
|
1949 |
popframe_processing_bit = 0x02, |
|
1950 |
popframe_force_deopt_reexecution_bit = 0x04 |
|
1951 |
}; |
|
1952 |
PopCondition popframe_condition() { return (PopCondition) _popframe_condition; } |
|
1953 |
void set_popframe_condition(PopCondition c) { _popframe_condition = c; } |
|
1954 |
void set_popframe_condition_bit(PopCondition c) { _popframe_condition |= c; } |
|
1955 |
void clear_popframe_condition() { _popframe_condition = popframe_inactive; } |
|
1956 |
static ByteSize popframe_condition_offset() { return byte_offset_of(JavaThread, _popframe_condition); } |
|
1957 |
bool has_pending_popframe() { return (popframe_condition() & popframe_pending_bit) != 0; } |
|
1958 |
bool popframe_forcing_deopt_reexecution() { return (popframe_condition() & popframe_force_deopt_reexecution_bit) != 0; } |
|
1959 |
void clear_popframe_forcing_deopt_reexecution() { _popframe_condition &= ~popframe_force_deopt_reexecution_bit; } |
|
1960 |
#ifdef CC_INTERP |
|
1961 |
bool pop_frame_pending(void) { return ((_popframe_condition & popframe_pending_bit) != 0); } |
|
1962 |
void clr_pop_frame_pending(void) { _popframe_condition = popframe_inactive; } |
|
1963 |
bool pop_frame_in_process(void) { return ((_popframe_condition & popframe_processing_bit) != 0); } |
|
1964 |
void set_pop_frame_in_process(void) { _popframe_condition |= popframe_processing_bit; } |
|
1965 |
void clr_pop_frame_in_process(void) { _popframe_condition &= ~popframe_processing_bit; } |
|
1966 |
#endif |
|
1967 |
||
28039
bf5a8340bf8a
6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents:
27917
diff
changeset
|
1968 |
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
|
1969 |
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
|
1970 |
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
|
1971 |
|
1 | 1972 |
private: |
1973 |
// Saved incoming arguments to popped frame. |
|
1974 |
// Used only when popped interpreted frame returns to deoptimized frame. |
|
1975 |
void* _popframe_preserved_args; |
|
1976 |
int _popframe_preserved_args_size; |
|
1977 |
||
1978 |
public: |
|
1979 |
void popframe_preserve_args(ByteSize size_in_bytes, void* start); |
|
1980 |
void* popframe_preserved_args(); |
|
1981 |
ByteSize popframe_preserved_args_size(); |
|
1982 |
WordSize popframe_preserved_args_size_in_words(); |
|
1983 |
void popframe_free_preserved_args(); |
|
1984 |
||
1985 |
||
1986 |
private: |
|
1987 |
JvmtiThreadState *_jvmti_thread_state; |
|
1988 |
||
1989 |
// Used by the interpreter in fullspeed mode for frame pop, method |
|
1990 |
// entry, method exit and single stepping support. This field is |
|
1991 |
// only set to non-zero by the VM_EnterInterpOnlyMode VM operation. |
|
1992 |
// It can be set to zero asynchronously (i.e., without a VM operation |
|
1993 |
// or a lock) so we have to be very careful. |
|
1994 |
int _interp_only_mode; |
|
1995 |
||
1996 |
public: |
|
1997 |
// used by the interpreter for fullspeed debugging support (see above) |
|
1998 |
static ByteSize interp_only_mode_offset() { return byte_offset_of(JavaThread, _interp_only_mode); } |
|
1999 |
bool is_interp_only_mode() { return (_interp_only_mode != 0); } |
|
2000 |
int get_interp_only_mode() { return _interp_only_mode; } |
|
2001 |
void increment_interp_only_mode() { ++_interp_only_mode; } |
|
2002 |
void decrement_interp_only_mode() { --_interp_only_mode; } |
|
2003 |
||
4761
bdb7375a1fee
6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents:
4573
diff
changeset
|
2004 |
// 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
|
2005 |
// 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
|
2006 |
// 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
|
2007 |
private: |
bdb7375a1fee
6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents:
4573
diff
changeset
|
2008 |
int _should_post_on_exceptions_flag; |
bdb7375a1fee
6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents:
4573
diff
changeset
|
2009 |
|
bdb7375a1fee
6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents:
4573
diff
changeset
|
2010 |
public: |
bdb7375a1fee
6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents:
4573
diff
changeset
|
2011 |
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
|
2012 |
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
|
2013 |
|
1 | 2014 |
private: |
2015 |
ThreadStatistics *_thread_stat; |
|
2016 |
||
2017 |
public: |
|
2018 |
ThreadStatistics* get_thread_stat() const { return _thread_stat; } |
|
2019 |
||
2020 |
// Return a blocker object for which this thread is blocked parking. |
|
2021 |
oop current_park_blocker(); |
|
2022 |
||
2023 |
private: |
|
2024 |
static size_t _stack_size_at_create; |
|
2025 |
||
2026 |
public: |
|
2027 |
static inline size_t stack_size_at_create(void) { |
|
2028 |
return _stack_size_at_create; |
|
2029 |
} |
|
2030 |
static inline void set_stack_size_at_create(size_t value) { |
|
2031 |
_stack_size_at_create = value; |
|
2032 |
} |
|
2033 |
||
2034 |
// Machine dependent stuff |
|
40010 | 2035 |
#include OS_CPU_HEADER(thread) |
1 | 2036 |
|
2037 |
// 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
|
2038 |
private: |
1 | 2039 |
Parker* _parker; |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
2040 |
public: |
1 | 2041 |
Parker* parker() { return _parker; } |
2042 |
||
2043 |
// 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
|
2044 |
private: |
1 | 2045 |
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
|
2046 |
public: |
1 | 2047 |
GrowableArray<MonitorInfo*>* cached_monitor_info() { return _cached_monitor_info; } |
2048 |
void set_cached_monitor_info(GrowableArray<MonitorInfo*>* info) { _cached_monitor_info = info; } |
|
2049 |
||
2050 |
// clearing/querying jni attach status |
|
10739 | 2051 |
bool is_attaching_via_jni() const { return _jni_attach_state == _attaching_via_jni; } |
2052 |
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
|
2053 |
inline void set_done_attaching_via_jni(); |
53305
d193d58ae79d
8213397: Stack dump should show more clearly when a thread is blocked on a class initialization monitor
dholmes
parents:
53244
diff
changeset
|
2054 |
|
d193d58ae79d
8213397: Stack dump should show more clearly when a thread is blocked on a class initialization monitor
dholmes
parents:
53244
diff
changeset
|
2055 |
// Stack dump assistance: |
d193d58ae79d
8213397: Stack dump should show more clearly when a thread is blocked on a class initialization monitor
dholmes
parents:
53244
diff
changeset
|
2056 |
// Track the class we want to initialize but for which we have to wait |
d193d58ae79d
8213397: Stack dump should show more clearly when a thread is blocked on a class initialization monitor
dholmes
parents:
53244
diff
changeset
|
2057 |
// on its init_lock() because it is already being initialized. |
d193d58ae79d
8213397: Stack dump should show more clearly when a thread is blocked on a class initialization monitor
dholmes
parents:
53244
diff
changeset
|
2058 |
void set_class_to_be_initialized(InstanceKlass* k); |
d193d58ae79d
8213397: Stack dump should show more clearly when a thread is blocked on a class initialization monitor
dholmes
parents:
53244
diff
changeset
|
2059 |
InstanceKlass* class_to_be_initialized() const; |
d193d58ae79d
8213397: Stack dump should show more clearly when a thread is blocked on a class initialization monitor
dholmes
parents:
53244
diff
changeset
|
2060 |
|
d193d58ae79d
8213397: Stack dump should show more clearly when a thread is blocked on a class initialization monitor
dholmes
parents:
53244
diff
changeset
|
2061 |
private: |
d193d58ae79d
8213397: Stack dump should show more clearly when a thread is blocked on a class initialization monitor
dholmes
parents:
53244
diff
changeset
|
2062 |
InstanceKlass* _class_to_be_initialized; |
d193d58ae79d
8213397: Stack dump should show more clearly when a thread is blocked on a class initialization monitor
dholmes
parents:
53244
diff
changeset
|
2063 |
|
58095 | 2064 |
// java.lang.Thread.sleep support |
58196
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
2065 |
ParkEvent * _SleepEvent; |
58095 | 2066 |
public: |
2067 |
bool sleep(jlong millis); |
|
58196
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
2068 |
|
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
2069 |
// java.lang.Thread interruption support |
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
2070 |
void interrupt(); |
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
2071 |
bool is_interrupted(bool clear_interrupted); |
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
2072 |
|
1 | 2073 |
}; |
2074 |
||
2075 |
// Inline implementation of JavaThread::current |
|
2076 |
inline JavaThread* JavaThread::current() { |
|
34633
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
33792
diff
changeset
|
2077 |
Thread* thread = Thread::current(); |
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
33792
diff
changeset
|
2078 |
assert(thread->is_Java_thread(), "just checking"); |
1 | 2079 |
return (JavaThread*)thread; |
2080 |
} |
|
2081 |
||
2082 |
inline CompilerThread* JavaThread::as_CompilerThread() { |
|
2083 |
assert(is_Compiler_thread(), "just checking"); |
|
2084 |
return (CompilerThread*)this; |
|
2085 |
} |
|
2086 |
||
27420
04e6f914cce1
8046809: vm/mlvm/meth/stress/compiler/deoptimize CodeCache is full.
anoll
parents:
26834
diff
changeset
|
2087 |
// Dedicated thread to sweep the code cache |
04e6f914cce1
8046809: vm/mlvm/meth/stress/compiler/deoptimize CodeCache is full.
anoll
parents:
26834
diff
changeset
|
2088 |
class CodeCacheSweeperThread : public JavaThread { |
38133
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
37474
diff
changeset
|
2089 |
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
|
2090 |
public: |
04e6f914cce1
8046809: vm/mlvm/meth/stress/compiler/deoptimize CodeCache is full.
anoll
parents:
26834
diff
changeset
|
2091 |
CodeCacheSweeperThread(); |
04e6f914cce1
8046809: vm/mlvm/meth/stress/compiler/deoptimize CodeCache is full.
anoll
parents:
26834
diff
changeset
|
2092 |
// Track the nmethod currently being scanned by the sweeper |
38133
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
37474
diff
changeset
|
2093 |
void set_scanned_compiled_method(CompiledMethod* cm) { |
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
37474
diff
changeset
|
2094 |
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
|
2095 |
_scanned_compiled_method = cm; |
27420
04e6f914cce1
8046809: vm/mlvm/meth/stress/compiler/deoptimize CodeCache is full.
anoll
parents:
26834
diff
changeset
|
2096 |
} |
04e6f914cce1
8046809: vm/mlvm/meth/stress/compiler/deoptimize CodeCache is full.
anoll
parents:
26834
diff
changeset
|
2097 |
|
27433
b276c91c1264
8062284: Sweeper thread should not be visible when calling Thread.getAllStackTraces()
anoll
parents:
27429
diff
changeset
|
2098 |
// Hide sweeper thread from external view. |
b276c91c1264
8062284: Sweeper thread should not be visible when calling Thread.getAllStackTraces()
anoll
parents:
27429
diff
changeset
|
2099 |
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
|
2100 |
|
27420
04e6f914cce1
8046809: vm/mlvm/meth/stress/compiler/deoptimize CodeCache is full.
anoll
parents:
26834
diff
changeset
|
2101 |
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
|
2102 |
|
38133
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
37474
diff
changeset
|
2103 |
// 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
|
2104 |
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
|
2105 |
void nmethods_do(CodeBlobClosure* cf); |
27420
04e6f914cce1
8046809: vm/mlvm/meth/stress/compiler/deoptimize CodeCache is full.
anoll
parents:
26834
diff
changeset
|
2106 |
}; |
04e6f914cce1
8046809: vm/mlvm/meth/stress/compiler/deoptimize CodeCache is full.
anoll
parents:
26834
diff
changeset
|
2107 |
|
1 | 2108 |
// A thread used for Compilation. |
2109 |
class CompilerThread : public JavaThread { |
|
2110 |
friend class VMStructs; |
|
2111 |
private: |
|
2112 |
CompilerCounters* _counters; |
|
2113 |
||
48428 | 2114 |
ciEnv* _env; |
2115 |
CompileLog* _log; |
|
2116 |
CompileTask* volatile _task; // print_threads_compiling can read this concurrently. |
|
2117 |
CompileQueue* _queue; |
|
2118 |
BufferBlob* _buffer_blob; |
|
1 | 2119 |
|
48428 | 2120 |
AbstractCompiler* _compiler; |
49848 | 2121 |
TimeStamp _idle_time; |
9942
2e86734ba620
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
9437
diff
changeset
|
2122 |
|
1 | 2123 |
public: |
2124 |
||
2125 |
static CompilerThread* current(); |
|
2126 |
||
2127 |
CompilerThread(CompileQueue* queue, CompilerCounters* counters); |
|
49848 | 2128 |
~CompilerThread(); |
1 | 2129 |
|
2130 |
bool is_Compiler_thread() const { return true; } |
|
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
2131 |
|
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
2132 |
virtual bool can_call_java() const; |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
2133 |
|
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
2134 |
// Hide native compiler threads from external view. |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32575
diff
changeset
|
2135 |
bool is_hidden_from_external_view() const { return !can_call_java(); } |
1 | 2136 |
|
20707
b3b658c6d1f8
8023014: CodeSweeperSweepNoFlushTest.java fails with HS crash
anoll
parents:
20703
diff
changeset
|
2137 |
void set_compiler(AbstractCompiler* c) { _compiler = c; } |
b3b658c6d1f8
8023014: CodeSweeperSweepNoFlushTest.java fails with HS crash
anoll
parents:
20703
diff
changeset
|
2138 |
AbstractCompiler* compiler() const { return _compiler; } |
b3b658c6d1f8
8023014: CodeSweeperSweepNoFlushTest.java fails with HS crash
anoll
parents:
20703
diff
changeset
|
2139 |
|
b3b658c6d1f8
8023014: CodeSweeperSweepNoFlushTest.java fails with HS crash
anoll
parents:
20703
diff
changeset
|
2140 |
CompileQueue* queue() const { return _queue; } |
b3b658c6d1f8
8023014: CodeSweeperSweepNoFlushTest.java fails with HS crash
anoll
parents:
20703
diff
changeset
|
2141 |
CompilerCounters* counters() const { return _counters; } |
1 | 2142 |
|
2143 |
// Get/set the thread's compilation environment. |
|
2144 |
ciEnv* env() { return _env; } |
|
2145 |
void set_env(ciEnv* env) { _env = env; } |
|
2146 |
||
20707
b3b658c6d1f8
8023014: CodeSweeperSweepNoFlushTest.java fails with HS crash
anoll
parents:
20703
diff
changeset
|
2147 |
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
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parents:
26683
diff
changeset
|
2148 |
void set_buffer_blob(BufferBlob* b) { _buffer_blob = b; } |
5707 | 2149 |
|
1 | 2150 |
// Get/set the thread's logging information |
2151 |
CompileLog* log() { return _log; } |
|
2152 |
void init_log(CompileLog* log) { |
|
2153 |
// Set once, for good. |
|
2154 |
assert(_log == NULL, "set only once"); |
|
2155 |
_log = log; |
|
2156 |
} |
|
2157 |
||
49848 | 2158 |
void start_idle_timer() { _idle_time.update(); } |
2159 |
jlong idle_time_millis() { |
|
2160 |
return TimeHelper::counter_to_millis(_idle_time.ticks_since_update()); |
|
2161 |
} |
|
2162 |
||
1 | 2163 |
#ifndef PRODUCT |
26683
a02753d5a0b2
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parents:
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diff
changeset
|
2164 |
private: |
1 | 2165 |
IdealGraphPrinter *_ideal_graph_printer; |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
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parents:
25946
diff
changeset
|
2166 |
public: |
27420
04e6f914cce1
8046809: vm/mlvm/meth/stress/compiler/deoptimize CodeCache is full.
anoll
parents:
26834
diff
changeset
|
2167 |
IdealGraphPrinter *ideal_graph_printer() { return _ideal_graph_printer; } |
04e6f914cce1
8046809: vm/mlvm/meth/stress/compiler/deoptimize CodeCache is full.
anoll
parents:
26834
diff
changeset
|
2168 |
void set_ideal_graph_printer(IdealGraphPrinter *n) { _ideal_graph_printer = n; } |
1 | 2169 |
#endif |
2170 |
||
2171 |
// Get/set the thread's current task |
|
27420
04e6f914cce1
8046809: vm/mlvm/meth/stress/compiler/deoptimize CodeCache is full.
anoll
parents:
26834
diff
changeset
|
2172 |
CompileTask* task() { return _task; } |
04e6f914cce1
8046809: vm/mlvm/meth/stress/compiler/deoptimize CodeCache is full.
anoll
parents:
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diff
changeset
|
2173 |
void set_task(CompileTask* task) { _task = task; } |
1 | 2174 |
}; |
2175 |
||
2176 |
inline CompilerThread* CompilerThread::current() { |
|
2177 |
return JavaThread::current()->as_CompilerThread(); |
|
2178 |
} |
|
2179 |
||
2180 |
// The active thread queue. It also keeps track of the current used |
|
2181 |
// thread priorities. |
|
2182 |
class Threads: AllStatic { |
|
2183 |
friend class VMStructs; |
|
2184 |
private: |
|
48312
2a1413298af0
8191789: migrate more Thread-SMR stuff from thread.[ch]pp -> threadSMR.[ch]pp
dcubed
parents:
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diff
changeset
|
2185 |
static int _number_of_threads; |
2a1413298af0
8191789: migrate more Thread-SMR stuff from thread.[ch]pp -> threadSMR.[ch]pp
dcubed
parents:
48173
diff
changeset
|
2186 |
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
|
2187 |
static int _return_code; |
54385
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54278
diff
changeset
|
2188 |
static uintx _thread_claim_token; |
13728
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6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
2189 |
#ifdef ASSERT |
48312
2a1413298af0
8191789: migrate more Thread-SMR stuff from thread.[ch]pp -> threadSMR.[ch]pp
dcubed
parents:
48173
diff
changeset
|
2190 |
static bool _vm_complete; |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
2191 |
#endif |
1 | 2192 |
|
22539
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
20707
diff
changeset
|
2193 |
static void initialize_java_lang_classes(JavaThread* main_thread, TRAPS); |
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
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diff
changeset
|
2194 |
static void initialize_jsr292_core_classes(TRAPS); |
48105
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dcubed
parents:
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diff
changeset
|
2195 |
|
1 | 2196 |
public: |
2197 |
// Thread management |
|
2198 |
// force_daemon is a concession to JNI, where we may need to add a |
|
2199 |
// thread to the thread list before allocating its thread object |
|
2200 |
static void add(JavaThread* p, bool force_daemon = false); |
|
54416
b788c494aa46
8218483: Crash in "assert(_daemon_threads_count->get_value() > daemon_count) failed: thread count mismatch 5 : 5"
dholmes
parents:
54385
diff
changeset
|
2201 |
static void remove(JavaThread* p, bool is_daemon); |
49756
129d60b5dac7
8200374: Add ThreadsSMRSupport::verify_hazard_pointer_scanned() to verify threads_do().
dcubed
parents:
49752
diff
changeset
|
2202 |
static void non_java_threads_do(ThreadClosure* tc); |
50058
f7e564cacfbc
8202649: Move the Parallel GC specific task creation functions out of Threads
stefank
parents:
49982
diff
changeset
|
2203 |
static void java_threads_do(ThreadClosure* tc); |
f7e564cacfbc
8202649: Move the Parallel GC specific task creation functions out of Threads
stefank
parents:
49982
diff
changeset
|
2204 |
static void java_threads_and_vm_thread_do(ThreadClosure* tc); |
1 | 2205 |
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
|
2206 |
static void possibly_parallel_threads_do(bool is_par, ThreadClosure* tc); |
1 | 2207 |
|
2208 |
// Initializes the vm and creates the vm thread |
|
2209 |
static jint create_vm(JavaVMInitArgs* args, bool* canTryAgain); |
|
2210 |
static void convert_vm_init_libraries_to_agents(); |
|
2211 |
static void create_vm_init_libraries(); |
|
2212 |
static void create_vm_init_agents(); |
|
2213 |
static void shutdown_vm_agents(); |
|
2214 |
static bool destroy_vm(); |
|
2215 |
// Supported VM versions via JNI |
|
2216 |
// Includes JNI_VERSION_1_1 |
|
2217 |
static jboolean is_supported_jni_version_including_1_1(jint version); |
|
2218 |
// Does not include JNI_VERSION_1_1 |
|
2219 |
static jboolean is_supported_jni_version(jint version); |
|
2220 |
||
54385
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54278
diff
changeset
|
2221 |
// The "thread claim token" provides a way for threads to be claimed |
30153
596ed88949ad
8076289: Move the StrongRootsScope out of SharedHeap
brutisso
parents:
30147
diff
changeset
|
2222 |
// by parallel worker tasks. |
596ed88949ad
8076289: Move the StrongRootsScope out of SharedHeap
brutisso
parents:
30147
diff
changeset
|
2223 |
// |
54385
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54278
diff
changeset
|
2224 |
// Each thread contains a "token" field. A task will claim the |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54278
diff
changeset
|
2225 |
// thread only if its token is different from the global token, |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54278
diff
changeset
|
2226 |
// which is updated by calling change_thread_claim_token(). When |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54278
diff
changeset
|
2227 |
// a thread is claimed, it's token is set to the global token value |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54278
diff
changeset
|
2228 |
// so other threads in the same iteration pass won't claim it. |
30153
596ed88949ad
8076289: Move the StrongRootsScope out of SharedHeap
brutisso
parents:
30147
diff
changeset
|
2229 |
// |
54385
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54278
diff
changeset
|
2230 |
// For this to work change_thread_claim_token() needs to be called |
30153
596ed88949ad
8076289: Move the StrongRootsScope out of SharedHeap
brutisso
parents:
30147
diff
changeset
|
2231 |
// exactly once in sequential code before starting parallel tasks |
596ed88949ad
8076289: Move the StrongRootsScope out of SharedHeap
brutisso
parents:
30147
diff
changeset
|
2232 |
// that should claim threads. |
596ed88949ad
8076289: Move the StrongRootsScope out of SharedHeap
brutisso
parents:
30147
diff
changeset
|
2233 |
// |
54385
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54278
diff
changeset
|
2234 |
// New threads get their token set to 0 and change_thread_claim_token() |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54278
diff
changeset
|
2235 |
// never sets the global token to 0. |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54278
diff
changeset
|
2236 |
static uintx thread_claim_token() { return _thread_claim_token; } |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54278
diff
changeset
|
2237 |
static void change_thread_claim_token(); |
30174 | 2238 |
static void assert_all_threads_claimed() NOT_DEBUG_RETURN; |
1 | 2239 |
|
2240 |
// Apply "f->do_oop" to all root oops in all threads. |
|
2241 |
// 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
|
2242 |
static void oops_do(OopClosure* f, CodeBlobClosure* cf); |
1 | 2243 |
// 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
|
2244 |
static void possibly_parallel_oops_do(bool is_par, OopClosure* f, CodeBlobClosure* cf); |
1 | 2245 |
|
2246 |
// Sweeper |
|
3908
24b55ad4c228
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
3261
diff
changeset
|
2247 |
static void nmethods_do(CodeBlobClosure* cf); |
1 | 2248 |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
2249 |
// RedefineClasses support |
54150
5529640c5f67
8220512: Deoptimize redefinition functions that have dirty ICs
coleenp
parents:
54015
diff
changeset
|
2250 |
static void metadata_do(MetadataClosure* f); |
29576
c223b0a9872e
8061205: MetadataOnStackMark only needs to walk code cache during class redefinition
coleenp
parents:
29362
diff
changeset
|
2251 |
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
|
2252 |
|
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
2253 |
#ifdef ASSERT |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
2254 |
static bool is_vm_complete() { return _vm_complete; } |
51600 | 2255 |
#endif // ASSERT |
1 | 2256 |
|
2257 |
// Verification |
|
2258 |
static void verify(); |
|
50785
d1b24f2ceca5
8200720: Print additional information in thread dump (times, allocated bytes etc.)
ghaug
parents:
50578
diff
changeset
|
2259 |
static void print_on(outputStream* st, bool print_stacks, bool internal_format, bool print_concurrent_locks, bool print_extended_info); |
1 | 2260 |
static void print(bool print_stacks, bool internal_format) { |
2261 |
// this function is only used by debug.cpp |
|
50785
d1b24f2ceca5
8200720: Print additional information in thread dump (times, allocated bytes etc.)
ghaug
parents:
50578
diff
changeset
|
2262 |
print_on(tty, print_stacks, internal_format, false /* no concurrent lock printed */, false /* simple format */); |
1 | 2263 |
} |
2264 |
static void print_on_error(outputStream* st, Thread* current, char* buf, int buflen); |
|
37474 | 2265 |
static void print_on_error(Thread* this_thread, outputStream* st, Thread* current, char* buf, |
2266 |
int buflen, bool* found_current); |
|
54015
cd701366fcf8
8163511: Allocation of compile task fails with assert: "Leaking compilation tasks?"
thartmann
parents:
53775
diff
changeset
|
2267 |
static void print_threads_compiling(outputStream* st, char* buf, int buflen, bool short_form = false); |
1 | 2268 |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
2269 |
// 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
|
2270 |
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
|
2271 |
int count, address monitor); |
1 | 2272 |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47881
diff
changeset
|
2273 |
// 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
|
2274 |
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
|
2275 |
address owner); |
1 | 2276 |
|
2277 |
// Number of threads on the active threads list |
|
2278 |
static int number_of_threads() { return _number_of_threads; } |
|
2279 |
// Number of non-daemon threads on the active threads list |
|
2280 |
static int number_of_non_daemon_threads() { return _number_of_non_daemon_threads; } |
|
2281 |
||
2282 |
// Deoptimizes all frames tied to marked nmethods |
|
2283 |
static void deoptimized_wrt_marked_nmethods(); |
|
54385
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54278
diff
changeset
|
2284 |
|
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54278
diff
changeset
|
2285 |
struct Test; // For private gtest access. |
1 | 2286 |
}; |
2287 |
||
2288 |
||
2289 |
// Thread iterator |
|
2290 |
class ThreadClosure: public StackObj { |
|
2291 |
public: |
|
2292 |
virtual void do_thread(Thread* thread) = 0; |
|
2293 |
}; |
|
2294 |
||
2295 |
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
|
2296 |
private: |
1 | 2297 |
Thread* _thread; |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
2298 |
public: |
1 | 2299 |
SignalHandlerMark(Thread* t) { |
2300 |
_thread = t; |
|
2301 |
if (_thread) _thread->enter_signal_handler(); |
|
2302 |
} |
|
2303 |
~SignalHandlerMark() { |
|
2304 |
if (_thread) _thread->leave_signal_handler(); |
|
2305 |
_thread = NULL; |
|
2306 |
} |
|
2307 |
}; |
|
2308 |
||
7397 | 2309 |
|
53244
9807daeb47c4
8216167: Update include guards to reflect correct directories
coleenp
parents:
53149
diff
changeset
|
2310 |
#endif // SHARE_RUNTIME_THREAD_HPP |