author | phh |
Sat, 30 Nov 2019 14:33:05 -0800 | |
changeset 59330 | 5b96c12f909d |
parent 59325 | 3636bab5e81e |
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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#include "precompiled.hpp" |
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#include "jvm.h" |
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#include "aot/aotLoader.hpp" |
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#include "classfile/classLoader.hpp" |
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#include "classfile/javaClasses.hpp" |
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#include "classfile/moduleEntry.hpp" |
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#include "classfile/systemDictionary.hpp" |
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#include "classfile/vmSymbols.hpp" |
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#include "code/codeCache.hpp" |
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#include "code/scopeDesc.hpp" |
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#include "compiler/compileBroker.hpp" |
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#include "compiler/compileTask.hpp" |
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#include "gc/shared/barrierSet.hpp" |
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#include "gc/shared/gcId.hpp" |
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#include "gc/shared/gcLocker.inline.hpp" |
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#include "gc/shared/workgroup.hpp" |
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#include "interpreter/interpreter.hpp" |
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#include "interpreter/linkResolver.hpp" |
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#include "interpreter/oopMapCache.hpp" |
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#include "jfr/jfrEvents.hpp" |
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#include "jvmtifiles/jvmtiEnv.hpp" |
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#include "logging/log.hpp" |
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#include "logging/logConfiguration.hpp" |
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#include "logging/logStream.hpp" |
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#include "memory/allocation.inline.hpp" |
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#include "memory/metaspaceShared.hpp" |
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#include "memory/oopFactory.hpp" |
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#include "memory/resourceArea.hpp" |
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#include "memory/universe.hpp" |
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#include "oops/access.inline.hpp" |
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#include "oops/instanceKlass.hpp" |
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#include "oops/objArrayOop.hpp" |
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#include "oops/oop.inline.hpp" |
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#include "oops/symbol.hpp" |
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#include "oops/typeArrayOop.inline.hpp" |
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#include "oops/verifyOopClosure.hpp" |
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#include "prims/jvm_misc.hpp" |
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#include "prims/jvmtiExport.hpp" |
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#include "prims/jvmtiThreadState.hpp" |
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#include "runtime/arguments.hpp" |
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#include "runtime/atomic.hpp" |
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#include "runtime/biasedLocking.hpp" |
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#include "runtime/fieldDescriptor.inline.hpp" |
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#include "runtime/flags/jvmFlagConstraintList.hpp" |
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#include "runtime/flags/jvmFlagRangeList.hpp" |
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#include "runtime/flags/jvmFlagWriteableList.hpp" |
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#include "runtime/deoptimization.hpp" |
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#include "runtime/frame.inline.hpp" |
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#include "runtime/handles.inline.hpp" |
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#include "runtime/handshake.hpp" |
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#include "runtime/init.hpp" |
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#include "runtime/interfaceSupport.inline.hpp" |
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#include "runtime/java.hpp" |
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#include "runtime/javaCalls.hpp" |
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#include "runtime/jniHandles.inline.hpp" |
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#include "runtime/jniPeriodicChecker.hpp" |
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#include "runtime/memprofiler.hpp" |
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#include "runtime/mutexLocker.hpp" |
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#include "runtime/objectMonitor.hpp" |
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#include "runtime/orderAccess.hpp" |
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#include "runtime/osThread.hpp" |
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#include "runtime/prefetch.inline.hpp" |
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#include "runtime/safepoint.hpp" |
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#include "runtime/safepointMechanism.inline.hpp" |
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#include "runtime/safepointVerifiers.hpp" |
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#include "runtime/sharedRuntime.hpp" |
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#include "runtime/statSampler.hpp" |
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#include "runtime/stubRoutines.hpp" |
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#include "runtime/sweeper.hpp" |
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#include "runtime/task.hpp" |
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#include "runtime/thread.inline.hpp" |
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#include "runtime/threadCritical.hpp" |
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#include "runtime/threadSMR.inline.hpp" |
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#include "runtime/threadStatisticalInfo.hpp" |
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#include "runtime/timer.hpp" |
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#include "runtime/timerTrace.hpp" |
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#include "runtime/vframe.inline.hpp" |
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#include "runtime/vframeArray.hpp" |
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#include "runtime/vframe_hp.hpp" |
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#include "runtime/vmThread.hpp" |
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#include "runtime/vmOperations.hpp" |
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#include "runtime/vm_version.hpp" |
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#include "services/attachListener.hpp" |
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#include "services/management.hpp" |
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#include "services/memTracker.hpp" |
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#include "services/threadService.hpp" |
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#include "utilities/align.hpp" |
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#include "utilities/copy.hpp" |
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#include "utilities/defaultStream.hpp" |
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#include "utilities/dtrace.hpp" |
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#include "utilities/events.hpp" |
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#include "utilities/macros.hpp" |
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#include "utilities/preserveException.hpp" |
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#include "utilities/singleWriterSynchronizer.hpp" |
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#include "utilities/vmError.hpp" |
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#if INCLUDE_JVMCI |
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#include "jvmci/jvmci.hpp" |
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#include "jvmci/jvmciEnv.hpp" |
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#endif |
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#ifdef COMPILER1 |
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#include "c1/c1_Compiler.hpp" |
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#endif |
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#ifdef COMPILER2 |
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#include "opto/c2compiler.hpp" |
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#include "opto/idealGraphPrinter.hpp" |
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#endif |
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#if INCLUDE_RTM_OPT |
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#include "runtime/rtmLocking.hpp" |
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#endif |
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#if INCLUDE_JFR |
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#include "jfr/jfr.hpp" |
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#endif |
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// Initialization after module runtime initialization |
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void universe_post_module_init(); // must happen after call_initPhase2 |
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#ifdef DTRACE_ENABLED |
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// Only bother with this argument setup if dtrace is available |
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#define HOTSPOT_THREAD_PROBE_start HOTSPOT_THREAD_START |
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#define HOTSPOT_THREAD_PROBE_stop HOTSPOT_THREAD_STOP |
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#define DTRACE_THREAD_PROBE(probe, javathread) \ |
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{ \ |
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ResourceMark rm(this); \ |
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int len = 0; \ |
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const char* name = (javathread)->get_thread_name(); \ |
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len = strlen(name); \ |
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HOTSPOT_THREAD_PROBE_##probe(/* probe = start, stop */ \ |
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(char *) name, len, \ |
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java_lang_Thread::thread_id((javathread)->threadObj()), \ |
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(uintptr_t) (javathread)->osthread()->thread_id(), \ |
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java_lang_Thread::is_daemon((javathread)->threadObj())); \ |
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} |
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#else // ndef DTRACE_ENABLED |
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#define DTRACE_THREAD_PROBE(probe, javathread) |
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#endif // ndef DTRACE_ENABLED |
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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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THREAD_LOCAL Thread* Thread::_thr_current = NULL; |
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#endif |
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|
172 |
// ======= Thread ======== |
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173 |
// Support for forcing alignment of thread objects for biased locking |
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void* Thread::allocate(size_t size, bool throw_excpt, MEMFLAGS flags) { |
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if (UseBiasedLocking) { |
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const size_t alignment = markWord::biased_lock_alignment; |
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size_t aligned_size = size + (alignment - sizeof(intptr_t)); |
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void* real_malloc_addr = throw_excpt? AllocateHeap(aligned_size, flags, CURRENT_PC) |
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: AllocateHeap(aligned_size, flags, CURRENT_PC, |
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AllocFailStrategy::RETURN_NULL); |
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void* aligned_addr = align_up(real_malloc_addr, alignment); |
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assert(((uintptr_t) aligned_addr + (uintptr_t) size) <= |
183 |
((uintptr_t) real_malloc_addr + (uintptr_t) aligned_size), |
|
184 |
"JavaThread alignment code overflowed allocated storage"); |
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if (aligned_addr != real_malloc_addr) { |
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log_info(biasedlocking)("Aligned thread " INTPTR_FORMAT " to " INTPTR_FORMAT, |
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p2i(real_malloc_addr), |
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p2i(aligned_addr)); |
1 | 189 |
} |
190 |
((Thread*) aligned_addr)->_real_malloc_address = real_malloc_addr; |
|
191 |
return aligned_addr; |
|
192 |
} else { |
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return throw_excpt? AllocateHeap(size, flags, CURRENT_PC) |
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: AllocateHeap(size, flags, CURRENT_PC, AllocFailStrategy::RETURN_NULL); |
1 | 195 |
} |
196 |
} |
|
197 |
||
198 |
void Thread::operator delete(void* p) { |
|
199 |
if (UseBiasedLocking) { |
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FreeHeap(((Thread*) p)->_real_malloc_address); |
1 | 201 |
} else { |
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202 |
FreeHeap(p); |
1 | 203 |
} |
204 |
} |
|
205 |
||
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206 |
void JavaThread::smr_delete() { |
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207 |
if (_on_thread_list) { |
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208 |
ThreadsSMRSupport::smr_delete(this); |
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209 |
} else { |
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210 |
delete this; |
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|
211 |
} |
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212 |
} |
1 | 213 |
|
214 |
// Base class for all threads: VMThread, WatcherThread, ConcurrentMarkSweepThread, |
|
215 |
// JavaThread |
|
216 |
||
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217 |
DEBUG_ONLY(Thread* Thread::_starting_thread = NULL;) |
1 | 218 |
|
219 |
Thread::Thread() { |
|
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220 |
|
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221 |
DEBUG_ONLY(_run_state = PRE_CALL_RUN;) |
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222 |
|
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223 |
// stack and get_thread |
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224 |
set_stack_base(NULL); |
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225 |
set_stack_size(0); |
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|
226 |
set_lgrp_id(-1); |
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|
227 |
DEBUG_ONLY(clear_suspendible_thread();) |
1 | 228 |
|
229 |
// allocated data structures |
|
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|
230 |
set_osthread(NULL); |
13195 | 231 |
set_resource_area(new (mtThread)ResourceArea()); |
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|
232 |
DEBUG_ONLY(_current_resource_mark = NULL;) |
13195 | 233 |
set_handle_area(new (mtThread) HandleArea(NULL)); |
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|
234 |
set_metadata_handles(new (ResourceObj::C_HEAP, mtClass) GrowableArray<Metadata*>(30, true)); |
1 | 235 |
set_active_handles(NULL); |
236 |
set_free_handle_block(NULL); |
|
237 |
set_last_handle_mark(NULL); |
|
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|
238 |
DEBUG_ONLY(_missed_ic_stub_refill_verifier = NULL); |
1 | 239 |
|
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|
240 |
// Initial value of zero ==> never claimed. |
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|
241 |
_threads_do_token = 0; |
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|
242 |
_threads_hazard_ptr = NULL; |
49956
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|
243 |
_threads_list_ptr = NULL; |
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|
244 |
_nested_threads_hazard_ptr_cnt = 0; |
49800
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|
245 |
_rcu_counter = 0; |
1 | 246 |
|
247 |
// the handle mark links itself to last_handle_mark |
|
17031 | 248 |
new HandleMark(this); |
249 |
||
1 | 250 |
// plain initialization |
251 |
debug_only(_owned_locks = NULL;) |
|
57603
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|
252 |
NOT_PRODUCT(_no_safepoint_count = 0;) |
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|
253 |
NOT_PRODUCT(_skip_gcalot = false;) |
1 | 254 |
_jvmti_env_iteration_count = 0; |
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|
255 |
set_allocated_bytes(0); |
1 | 256 |
_vm_operation_started_count = 0; |
257 |
_vm_operation_completed_count = 0; |
|
258 |
_current_pending_monitor = NULL; |
|
259 |
_current_pending_monitor_is_from_java = true; |
|
260 |
_current_waiting_monitor = NULL; |
|
58488
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8231289: Disentangle JvmtiRawMonitor from ObjectMonitor and clean it up
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|
261 |
_current_pending_raw_monitor = NULL; |
1 | 262 |
_num_nested_signal = 0; |
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|
263 |
om_free_list = NULL; |
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|
264 |
om_free_count = 0; |
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|
265 |
om_free_provision = 32; |
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|
266 |
om_in_use_list = NULL; |
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|
267 |
om_in_use_count = 0; |
1 | 268 |
|
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|
269 |
#ifdef ASSERT |
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|
270 |
_visited_for_critical_count = false; |
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|
271 |
#endif |
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|
272 |
|
28163
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8047290: Make Mutex::_no_safepoint_check_flag locks verify that this lock never checks for safepoint
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|
273 |
_SR_lock = new Monitor(Mutex::suspend_resume, "SR_lock", true, |
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|
274 |
Monitor::_safepoint_check_sometimes); |
1 | 275 |
_suspend_flags = 0; |
276 |
||
277 |
// thread-specific hashCode stream generator state - Marsaglia shift-xor form |
|
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|
278 |
_hashStateX = os::random(); |
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|
279 |
_hashStateY = 842502087; |
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|
280 |
_hashStateZ = 0x8767; // (int)(3579807591LL & 0xffff) ; |
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|
281 |
_hashStateW = 273326509; |
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|
282 |
|
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|
283 |
_OnTrap = 0; |
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|
284 |
_Stalled = 0; |
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|
285 |
_TypeTag = 0x2BAD; |
1 | 286 |
|
287 |
// Many of the following fields are effectively final - immutable |
|
288 |
// Note that nascent threads can't use the Native Monitor-Mutex |
|
289 |
// construct until the _MutexEvent is initialized ... |
|
290 |
// CONSIDER: instead of using a fixed set of purpose-dedicated ParkEvents |
|
291 |
// we might instead use a stack of ParkEvents that we could provision on-demand. |
|
292 |
// The stack would act as a cache to avoid calls to ParkEvent::Allocate() |
|
293 |
// and ::Release() |
|
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|
294 |
_ParkEvent = ParkEvent::Allocate(this); |
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|
295 |
_MuxEvent = ParkEvent::Allocate(this); |
1 | 296 |
|
297 |
#ifdef CHECK_UNHANDLED_OOPS |
|
298 |
if (CheckUnhandledOops) { |
|
299 |
_unhandled_oops = new UnhandledOops(this); |
|
300 |
} |
|
301 |
#endif // CHECK_UNHANDLED_OOPS |
|
302 |
#ifdef ASSERT |
|
303 |
if (UseBiasedLocking) { |
|
57959
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8230203: Replace markWord enums with typed constants
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|
304 |
assert(is_aligned(this, markWord::biased_lock_alignment), "forced alignment of thread object failed"); |
1 | 305 |
assert(this == _real_malloc_address || |
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|
306 |
this == align_up(_real_malloc_address, markWord::biased_lock_alignment), |
1 | 307 |
"bug in forced alignment of thread objects"); |
308 |
} |
|
26684
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|
309 |
#endif // ASSERT |
49752
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|
310 |
|
52955
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8215097: Do not create NonJavaThreads before BarrierSet
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changeset
|
311 |
// Notify the barrier set that a thread is being created. The initial |
f0f3dc30e3bb
8215097: Do not create NonJavaThreads before BarrierSet
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|
312 |
// thread is created before the barrier set is available. The call to |
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|
313 |
// BarrierSet::on_thread_create() for this thread is therefore deferred |
51600 | 314 |
// to BarrierSet::set_barrier_set(). |
49752
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|
315 |
BarrierSet* const barrier_set = BarrierSet::barrier_set(); |
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|
316 |
if (barrier_set != NULL) { |
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|
317 |
barrier_set->on_thread_create(this); |
51600 | 318 |
} else { |
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|
319 |
// Only the main thread should be created before the barrier set |
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|
320 |
// and that happens just before Thread::current is set. No other thread |
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|
321 |
// can attach as the VM is not created yet, so they can't execute this code. |
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|
322 |
// If the main thread creates other threads before the barrier set that is an error. |
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|
323 |
assert(Thread::current_or_null() == NULL, "creating thread before barrier set"); |
49752
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changeset
|
324 |
} |
1 | 325 |
} |
326 |
||
34633
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8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
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changeset
|
327 |
void Thread::initialize_thread_current() { |
2a6c7c7b30a7
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changeset
|
328 |
#ifndef USE_LIBRARY_BASED_TLS_ONLY |
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|
329 |
assert(_thr_current == NULL, "Thread::current already initialized"); |
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|
330 |
_thr_current = this; |
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|
331 |
#endif |
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changeset
|
332 |
assert(ThreadLocalStorage::thread() == NULL, "ThreadLocalStorage::thread already initialized"); |
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changeset
|
333 |
ThreadLocalStorage::set_thread(this); |
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changeset
|
334 |
assert(Thread::current() == ThreadLocalStorage::thread(), "TLS mismatch!"); |
30175 | 335 |
} |
336 |
||
34633
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changeset
|
337 |
void Thread::clear_thread_current() { |
2a6c7c7b30a7
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diff
changeset
|
338 |
assert(Thread::current() == ThreadLocalStorage::thread(), "TLS mismatch!"); |
2a6c7c7b30a7
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diff
changeset
|
339 |
#ifndef USE_LIBRARY_BASED_TLS_ONLY |
2a6c7c7b30a7
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diff
changeset
|
340 |
_thr_current = NULL; |
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changeset
|
341 |
#endif |
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8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
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diff
changeset
|
342 |
ThreadLocalStorage::set_thread(NULL); |
1 | 343 |
} |
344 |
||
345 |
void Thread::record_stack_base_and_size() { |
|
52302
912b79d983d9
8212173: Thread._stack_base/_stack_size initialized too late for new threads
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changeset
|
346 |
// Note: at this point, Thread object is not yet initialized. Do not rely on |
912b79d983d9
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|
347 |
// any members being initialized. Do not rely on Thread::current() being set. |
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|
348 |
// If possible, refrain from doing anything which may crash or assert since |
912b79d983d9
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diff
changeset
|
349 |
// quite probably those crash dumps will be useless. |
1 | 350 |
set_stack_base(os::current_stack_base()); |
351 |
set_stack_size(os::current_stack_size()); |
|
52302
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changeset
|
352 |
|
912b79d983d9
8212173: Thread._stack_base/_stack_size initialized too late for new threads
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diff
changeset
|
353 |
#ifdef SOLARIS |
912b79d983d9
8212173: Thread._stack_base/_stack_size initialized too late for new threads
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diff
changeset
|
354 |
if (os::is_primordial_thread()) { |
912b79d983d9
8212173: Thread._stack_base/_stack_size initialized too late for new threads
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diff
changeset
|
355 |
os::Solaris::correct_stack_boundaries_for_primordial_thread(this); |
912b79d983d9
8212173: Thread._stack_base/_stack_size initialized too late for new threads
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diff
changeset
|
356 |
} |
912b79d983d9
8212173: Thread._stack_base/_stack_size initialized too late for new threads
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diff
changeset
|
357 |
#endif |
13859
7fe4578493fc
7190089: NMT ON: NMT failed assertion on thread's stack base address
zgu
parents:
13748
diff
changeset
|
358 |
|
35222
fc89375d788d
8146011: sun/management/jmxremote/bootstrap/CustomLauncherTest crash at assert(stack_size)
coleenp
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35216
diff
changeset
|
359 |
// Set stack limits after thread is initialized. |
fc89375d788d
8146011: sun/management/jmxremote/bootstrap/CustomLauncherTest crash at assert(stack_size)
coleenp
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35216
diff
changeset
|
360 |
if (is_Java_thread()) { |
fc89375d788d
8146011: sun/management/jmxremote/bootstrap/CustomLauncherTest crash at assert(stack_size)
coleenp
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35216
diff
changeset
|
361 |
((JavaThread*) this)->set_stack_overflow_limit(); |
fc89375d788d
8146011: sun/management/jmxremote/bootstrap/CustomLauncherTest crash at assert(stack_size)
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parents:
35216
diff
changeset
|
362 |
((JavaThread*) this)->set_reserved_stack_activation(stack_base()); |
fc89375d788d
8146011: sun/management/jmxremote/bootstrap/CustomLauncherTest crash at assert(stack_size)
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diff
changeset
|
363 |
} |
52302
912b79d983d9
8212173: Thread._stack_base/_stack_size initialized too late for new threads
stuefe
parents:
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diff
changeset
|
364 |
} |
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8212173: Thread._stack_base/_stack_size initialized too late for new threads
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diff
changeset
|
365 |
|
13975
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changeset
|
366 |
#if INCLUDE_NMT |
52302
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|
367 |
void Thread::register_thread_stack_with_NMT() { |
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
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diff
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|
368 |
MemTracker::record_thread_stack(stack_end(), stack_size()); |
52302
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|
369 |
} |
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|
370 |
#endif // INCLUDE_NMT |
52302
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changeset
|
371 |
|
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changeset
|
372 |
void Thread::call_run() { |
53103
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|
373 |
DEBUG_ONLY(_run_state = CALL_RUN;) |
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|
374 |
|
52302
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|
375 |
// At this point, Thread object should be fully initialized and |
912b79d983d9
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|
376 |
// Thread::current() should be set. |
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changeset
|
377 |
|
53103
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changeset
|
378 |
assert(Thread::current_or_null() != NULL, "current thread is unset"); |
67e3a8b3449c
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changeset
|
379 |
assert(Thread::current_or_null() == this, "current thread is wrong"); |
67e3a8b3449c
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changeset
|
380 |
|
67e3a8b3449c
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changeset
|
381 |
// Perform common initialization actions |
67e3a8b3449c
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changeset
|
382 |
|
52302
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changeset
|
383 |
register_thread_stack_with_NMT(); |
912b79d983d9
8212173: Thread._stack_base/_stack_size initialized too late for new threads
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parents:
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diff
changeset
|
384 |
|
52569
1a534c7926cc
8210024: JFR calls virtual is_Java_thread from ~Thread()
mgronlun
parents:
52431
diff
changeset
|
385 |
JFR_ONLY(Jfr::on_thread_start(this);) |
1a534c7926cc
8210024: JFR calls virtual is_Java_thread from ~Thread()
mgronlun
parents:
52431
diff
changeset
|
386 |
|
36355
dd339cbafd31
8149036: Add tracing for thread related events at os level
stuefe
parents:
36199
diff
changeset
|
387 |
log_debug(os, thread)("Thread " UINTX_FORMAT " stack dimensions: " |
dd339cbafd31
8149036: Add tracing for thread related events at os level
stuefe
parents:
36199
diff
changeset
|
388 |
PTR_FORMAT "-" PTR_FORMAT " (" SIZE_FORMAT "k).", |
dd339cbafd31
8149036: Add tracing for thread related events at os level
stuefe
parents:
36199
diff
changeset
|
389 |
os::current_thread_id(), p2i(stack_base() - stack_size()), |
dd339cbafd31
8149036: Add tracing for thread related events at os level
stuefe
parents:
36199
diff
changeset
|
390 |
p2i(stack_base()), stack_size()/1024); |
52302
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8212173: Thread._stack_base/_stack_size initialized too late for new threads
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changeset
|
391 |
|
53103
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changeset
|
392 |
// Perform <ChildClass> initialization actions |
67e3a8b3449c
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changeset
|
393 |
DEBUG_ONLY(_run_state = PRE_RUN;) |
67e3a8b3449c
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diff
changeset
|
394 |
this->pre_run(); |
67e3a8b3449c
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parents:
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diff
changeset
|
395 |
|
52302
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parents:
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changeset
|
396 |
// Invoke <ChildClass>::run() |
53103
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changeset
|
397 |
DEBUG_ONLY(_run_state = RUN;) |
52302
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changeset
|
398 |
this->run(); |
912b79d983d9
8212173: Thread._stack_base/_stack_size initialized too late for new threads
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parents:
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changeset
|
399 |
// Returned from <ChildClass>::run(). Thread finished. |
912b79d983d9
8212173: Thread._stack_base/_stack_size initialized too late for new threads
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parents:
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diff
changeset
|
400 |
|
53103
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parents:
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diff
changeset
|
401 |
// Perform common tear-down actions |
67e3a8b3449c
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dholmes
parents:
53084
diff
changeset
|
402 |
|
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
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parents:
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diff
changeset
|
403 |
assert(Thread::current_or_null() != NULL, "current thread is unset"); |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
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parents:
53084
diff
changeset
|
404 |
assert(Thread::current_or_null() == this, "current thread is wrong"); |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
405 |
|
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
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parents:
53084
diff
changeset
|
406 |
// Perform <ChildClass> tear-down actions |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
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parents:
53084
diff
changeset
|
407 |
DEBUG_ONLY(_run_state = POST_RUN;) |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
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diff
changeset
|
408 |
this->post_run(); |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
409 |
|
67e3a8b3449c
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parents:
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diff
changeset
|
410 |
// Note: at this point the thread object may already have deleted itself, |
67e3a8b3449c
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dholmes
parents:
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diff
changeset
|
411 |
// so from here on do not dereference *this*. Not all thread types currently |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
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parents:
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diff
changeset
|
412 |
// delete themselves when they terminate. But no thread should ever be deleted |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
413 |
// asynchronously with respect to its termination - that is what _run_state can |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
414 |
// be used to check. |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
415 |
|
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
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parents:
53084
diff
changeset
|
416 |
assert(Thread::current_or_null() == NULL, "current thread still present"); |
1 | 417 |
} |
418 |
||
419 |
Thread::~Thread() { |
|
53103
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8214097: Rework thread initialization and teardown logic
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changeset
|
420 |
|
67e3a8b3449c
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parents:
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diff
changeset
|
421 |
// Attached threads will remain in PRE_CALL_RUN, as will threads that don't actually |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
422 |
// get started due to errors etc. Any active thread should at least reach post_run |
67e3a8b3449c
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dholmes
parents:
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diff
changeset
|
423 |
// before it is deleted (usually in post_run()). |
67e3a8b3449c
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dholmes
parents:
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diff
changeset
|
424 |
assert(_run_state == PRE_CALL_RUN || |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
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parents:
53084
diff
changeset
|
425 |
_run_state == POST_RUN, "Active Thread deleted before post_run(): " |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
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parents:
53084
diff
changeset
|
426 |
"_run_state=%d", (int)_run_state); |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
427 |
|
49752
93d84f667d12
8201318: Introduce GCThreadLocalData to abstract GC-specific data belonging to a thread
pliden
parents:
49751
diff
changeset
|
428 |
// Notify the barrier set that a thread is being destroyed. Note that a barrier |
93d84f667d12
8201318: Introduce GCThreadLocalData to abstract GC-specific data belonging to a thread
pliden
parents:
49751
diff
changeset
|
429 |
// set might not be available if we encountered errors during bootstrapping. |
93d84f667d12
8201318: Introduce GCThreadLocalData to abstract GC-specific data belonging to a thread
pliden
parents:
49751
diff
changeset
|
430 |
BarrierSet* const barrier_set = BarrierSet::barrier_set(); |
93d84f667d12
8201318: Introduce GCThreadLocalData to abstract GC-specific data belonging to a thread
pliden
parents:
49751
diff
changeset
|
431 |
if (barrier_set != NULL) { |
93d84f667d12
8201318: Introduce GCThreadLocalData to abstract GC-specific data belonging to a thread
pliden
parents:
49751
diff
changeset
|
432 |
barrier_set->on_thread_destroy(this); |
93d84f667d12
8201318: Introduce GCThreadLocalData to abstract GC-specific data belonging to a thread
pliden
parents:
49751
diff
changeset
|
433 |
} |
93d84f667d12
8201318: Introduce GCThreadLocalData to abstract GC-specific data belonging to a thread
pliden
parents:
49751
diff
changeset
|
434 |
|
13748
c4455a44f974
7198529: NPG: assert with NMT code in Thread destructor
zgu
parents:
13744
diff
changeset
|
435 |
// stack_base can be NULL if the thread is never started or exited before |
c4455a44f974
7198529: NPG: assert with NMT code in Thread destructor
zgu
parents:
13744
diff
changeset
|
436 |
// record_stack_base_and_size called. Although, we would like to ensure |
c4455a44f974
7198529: NPG: assert with NMT code in Thread destructor
zgu
parents:
13744
diff
changeset
|
437 |
// that all started threads do call record_stack_base_and_size(), there is |
c4455a44f974
7198529: NPG: assert with NMT code in Thread destructor
zgu
parents:
13744
diff
changeset
|
438 |
// not proper way to enforce that. |
13975
2f7431485cfa
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
13860
diff
changeset
|
439 |
#if INCLUDE_NMT |
13748
c4455a44f974
7198529: NPG: assert with NMT code in Thread destructor
zgu
parents:
13744
diff
changeset
|
440 |
if (_stack_base != NULL) { |
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
441 |
MemTracker::release_thread_stack(stack_end(), stack_size()); |
14120
7d298141c258
7199092: NMT: NMT needs to deal overlapped virtual memory ranges
zgu
parents:
14083
diff
changeset
|
442 |
#ifdef ASSERT |
7d298141c258
7199092: NMT: NMT needs to deal overlapped virtual memory ranges
zgu
parents:
14083
diff
changeset
|
443 |
set_stack_base(NULL); |
7d298141c258
7199092: NMT: NMT needs to deal overlapped virtual memory ranges
zgu
parents:
14083
diff
changeset
|
444 |
#endif |
13748
c4455a44f974
7198529: NPG: assert with NMT code in Thread destructor
zgu
parents:
13744
diff
changeset
|
445 |
} |
13975
2f7431485cfa
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
13860
diff
changeset
|
446 |
#endif // INCLUDE_NMT |
13195 | 447 |
|
1 | 448 |
// deallocate data structures |
449 |
delete resource_area(); |
|
450 |
// since the handle marks are using the handle area, we have to deallocated the root |
|
451 |
// handle mark before deallocating the thread's handle area, |
|
452 |
assert(last_handle_mark() != NULL, "check we have an element"); |
|
17031 | 453 |
delete last_handle_mark(); |
454 |
assert(last_handle_mark() == NULL, "check we have reached the end"); |
|
1 | 455 |
|
456 |
// It's possible we can encounter a null _ParkEvent, etc., in stillborn threads. |
|
457 |
// We NULL out the fields for good hygiene. |
|
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
458 |
ParkEvent::Release(_ParkEvent); _ParkEvent = NULL; |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
459 |
ParkEvent::Release(_MuxEvent); _MuxEvent = NULL; |
1 | 460 |
|
461 |
delete handle_area(); |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
462 |
delete metadata_handles(); |
1 | 463 |
|
40377
b77bf599c11b
8159461: bigapps/Kitchensink/stressExitCode hits assert: Must be VMThread or JavaThread
dholmes
parents:
40074
diff
changeset
|
464 |
// SR_handler uses this as a termination indicator - |
b77bf599c11b
8159461: bigapps/Kitchensink/stressExitCode hits assert: Must be VMThread or JavaThread
dholmes
parents:
40074
diff
changeset
|
465 |
// needs to happen before os::free_thread() |
b77bf599c11b
8159461: bigapps/Kitchensink/stressExitCode hits assert: Must be VMThread or JavaThread
dholmes
parents:
40074
diff
changeset
|
466 |
delete _SR_lock; |
b77bf599c11b
8159461: bigapps/Kitchensink/stressExitCode hits assert: Must be VMThread or JavaThread
dholmes
parents:
40074
diff
changeset
|
467 |
_SR_lock = NULL; |
b77bf599c11b
8159461: bigapps/Kitchensink/stressExitCode hits assert: Must be VMThread or JavaThread
dholmes
parents:
40074
diff
changeset
|
468 |
|
1 | 469 |
// osthread() can be NULL, if creation of thread failed. |
470 |
if (osthread() != NULL) os::free_thread(osthread()); |
|
471 |
||
53103
67e3a8b3449c
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diff
changeset
|
472 |
// Clear Thread::current if thread is deleting itself and it has not |
67e3a8b3449c
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dholmes
parents:
53084
diff
changeset
|
473 |
// already been done. This must be done before the memory is deallocated. |
34633
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
34285
diff
changeset
|
474 |
// Needed to ensure JNI correctly detects non-attached threads. |
53103
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changeset
|
475 |
if (this == Thread::current_or_null()) { |
52302
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parents:
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diff
changeset
|
476 |
Thread::clear_thread_current(); |
1 | 477 |
} |
34633
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
34285
diff
changeset
|
478 |
|
1 | 479 |
CHECK_UNHANDLED_OOPS_ONLY(if (CheckUnhandledOops) delete unhandled_oops();) |
480 |
} |
|
481 |
||
482 |
#ifdef ASSERT |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
483 |
// A JavaThread is considered "dangling" if it is not the current |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
484 |
// thread, has been added the Threads list, the system is not at a |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
485 |
// safepoint and the Thread is not "protected". |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
486 |
// |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
487 |
void Thread::check_for_dangling_thread_pointer(Thread *thread) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
488 |
assert(!thread->is_Java_thread() || Thread::current() == thread || |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
489 |
!((JavaThread *) thread)->on_thread_list() || |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
490 |
SafepointSynchronize::is_at_safepoint() || |
48312
2a1413298af0
8191789: migrate more Thread-SMR stuff from thread.[ch]pp -> threadSMR.[ch]pp
dcubed
parents:
48173
diff
changeset
|
491 |
ThreadsSMRSupport::is_a_protected_JavaThread_with_lock((JavaThread *) thread), |
1 | 492 |
"possibility of dangling Thread pointer"); |
493 |
} |
|
494 |
#endif |
|
495 |
||
496 |
ThreadPriority Thread::get_priority(const Thread* const thread) { |
|
497 |
ThreadPriority priority; |
|
498 |
// Can return an error! |
|
499 |
(void)os::get_priority(thread, priority); |
|
500 |
assert(MinPriority <= priority && priority <= MaxPriority, "non-Java priority found"); |
|
501 |
return priority; |
|
502 |
} |
|
503 |
||
504 |
void Thread::set_priority(Thread* thread, ThreadPriority priority) { |
|
505 |
debug_only(check_for_dangling_thread_pointer(thread);) |
|
506 |
// Can return an error! |
|
507 |
(void)os::set_priority(thread, priority); |
|
508 |
} |
|
509 |
||
510 |
||
511 |
void Thread::start(Thread* thread) { |
|
512 |
// Start is different from resume in that its safety is guaranteed by context or |
|
513 |
// being called from a Java method synchronized on the Thread object. |
|
514 |
if (!DisableStartThread) { |
|
515 |
if (thread->is_Java_thread()) { |
|
516 |
// Initialize the thread state to RUNNABLE before starting this thread. |
|
517 |
// Can not set it after the thread started because we do not know the |
|
518 |
// exact thread state at that time. It could be in MONITOR_WAIT or |
|
519 |
// in SLEEPING or some other state. |
|
520 |
java_lang_Thread::set_thread_status(((JavaThread*)thread)->threadObj(), |
|
521 |
java_lang_Thread::RUNNABLE); |
|
522 |
} |
|
523 |
os::start_thread(thread); |
|
524 |
} |
|
525 |
} |
|
526 |
||
527 |
void Thread::send_async_exception(oop java_thread, oop java_throwable) { |
|
59325 | 528 |
VM_ThreadStop vm_stop(java_thread, java_throwable); |
529 |
VMThread::execute(&vm_stop); |
|
1 | 530 |
} |
531 |
||
532 |
||
533 |
// Check if an external suspend request has completed (or has been |
|
534 |
// cancelled). Returns true if the thread is externally suspended and |
|
535 |
// false otherwise. |
|
536 |
// |
|
537 |
// The bits parameter returns information about the code path through |
|
538 |
// the routine. Useful for debugging: |
|
539 |
// |
|
540 |
// set in is_ext_suspend_completed(): |
|
541 |
// 0x00000001 - routine was entered |
|
542 |
// 0x00000010 - routine return false at end |
|
543 |
// 0x00000100 - thread exited (return false) |
|
544 |
// 0x00000200 - suspend request cancelled (return false) |
|
545 |
// 0x00000400 - thread suspended (return true) |
|
546 |
// 0x00001000 - thread is in a suspend equivalent state (return true) |
|
547 |
// 0x00002000 - thread is native and walkable (return true) |
|
548 |
// 0x00004000 - thread is native_trans and walkable (needed retry) |
|
549 |
// |
|
550 |
// set in wait_for_ext_suspend_completion(): |
|
551 |
// 0x00010000 - routine was entered |
|
552 |
// 0x00020000 - suspend request cancelled before loop (return false) |
|
553 |
// 0x00040000 - thread suspended before loop (return true) |
|
554 |
// 0x00080000 - suspend request cancelled in loop (return false) |
|
555 |
// 0x00100000 - thread suspended in loop (return true) |
|
556 |
// 0x00200000 - suspend not completed during retry loop (return false) |
|
557 |
||
558 |
// Helper class for tracing suspend wait debug bits. |
|
559 |
// |
|
560 |
// 0x00000100 indicates that the target thread exited before it could |
|
561 |
// self-suspend which is not a wait failure. 0x00000200, 0x00020000 and |
|
562 |
// 0x00080000 each indicate a cancelled suspend request so they don't |
|
563 |
// count as wait failures either. |
|
564 |
#define DEBUG_FALSE_BITS (0x00000010 | 0x00200000) |
|
565 |
||
566 |
class TraceSuspendDebugBits : public StackObj { |
|
567 |
private: |
|
568 |
JavaThread * jt; |
|
569 |
bool is_wait; |
|
570 |
bool called_by_wait; // meaningful when !is_wait |
|
571 |
uint32_t * bits; |
|
572 |
||
573 |
public: |
|
574 |
TraceSuspendDebugBits(JavaThread *_jt, bool _is_wait, bool _called_by_wait, |
|
575 |
uint32_t *_bits) { |
|
576 |
jt = _jt; |
|
577 |
is_wait = _is_wait; |
|
578 |
called_by_wait = _called_by_wait; |
|
579 |
bits = _bits; |
|
580 |
} |
|
581 |
||
582 |
~TraceSuspendDebugBits() { |
|
583 |
if (!is_wait) { |
|
584 |
#if 1 |
|
585 |
// By default, don't trace bits for is_ext_suspend_completed() calls. |
|
586 |
// That trace is very chatty. |
|
587 |
return; |
|
588 |
#else |
|
589 |
if (!called_by_wait) { |
|
590 |
// If tracing for is_ext_suspend_completed() is enabled, then only |
|
591 |
// trace calls to it from wait_for_ext_suspend_completion() |
|
592 |
return; |
|
593 |
} |
|
594 |
#endif |
|
595 |
} |
|
596 |
||
597 |
if (AssertOnSuspendWaitFailure || TraceSuspendWaitFailures) { |
|
598 |
if (bits != NULL && (*bits & DEBUG_FALSE_BITS) != 0) { |
|
599 |
MutexLocker ml(Threads_lock); // needed for get_thread_name() |
|
600 |
ResourceMark rm; |
|
601 |
||
602 |
tty->print_cr( |
|
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
603 |
"Failed wait_for_ext_suspend_completion(thread=%s, debug_bits=%x)", |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
604 |
jt->get_thread_name(), *bits); |
1 | 605 |
|
606 |
guarantee(!AssertOnSuspendWaitFailure, "external suspend wait failed"); |
|
607 |
} |
|
608 |
} |
|
609 |
} |
|
610 |
}; |
|
611 |
#undef DEBUG_FALSE_BITS |
|
612 |
||
613 |
||
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
614 |
bool JavaThread::is_ext_suspend_completed(bool called_by_wait, int delay, |
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
615 |
uint32_t *bits) { |
1 | 616 |
TraceSuspendDebugBits tsdb(this, false /* !is_wait */, called_by_wait, bits); |
617 |
||
618 |
bool did_trans_retry = false; // only do thread_in_native_trans retry once |
|
619 |
bool do_trans_retry; // flag to force the retry |
|
620 |
||
621 |
*bits |= 0x00000001; |
|
622 |
||
623 |
do { |
|
624 |
do_trans_retry = false; |
|
625 |
||
626 |
if (is_exiting()) { |
|
627 |
// Thread is in the process of exiting. This is always checked |
|
628 |
// first to reduce the risk of dereferencing a freed JavaThread. |
|
629 |
*bits |= 0x00000100; |
|
630 |
return false; |
|
631 |
} |
|
632 |
||
633 |
if (!is_external_suspend()) { |
|
634 |
// Suspend request is cancelled. This is always checked before |
|
635 |
// is_ext_suspended() to reduce the risk of a rogue resume |
|
636 |
// confusing the thread that made the suspend request. |
|
637 |
*bits |= 0x00000200; |
|
638 |
return false; |
|
639 |
} |
|
640 |
||
641 |
if (is_ext_suspended()) { |
|
642 |
// thread is suspended |
|
643 |
*bits |= 0x00000400; |
|
644 |
return true; |
|
645 |
} |
|
646 |
||
647 |
// Now that we no longer do hard suspends of threads running |
|
648 |
// native code, the target thread can be changing thread state |
|
649 |
// while we are in this routine: |
|
650 |
// |
|
651 |
// _thread_in_native -> _thread_in_native_trans -> _thread_blocked |
|
652 |
// |
|
653 |
// We save a copy of the thread state as observed at this moment |
|
654 |
// and make our decision about suspend completeness based on the |
|
655 |
// copy. This closes the race where the thread state is seen as |
|
656 |
// _thread_in_native_trans in the if-thread_blocked check, but is |
|
657 |
// seen as _thread_blocked in if-thread_in_native_trans check. |
|
658 |
JavaThreadState save_state = thread_state(); |
|
659 |
||
660 |
if (save_state == _thread_blocked && is_suspend_equivalent()) { |
|
661 |
// If the thread's state is _thread_blocked and this blocking |
|
662 |
// condition is known to be equivalent to a suspend, then we can |
|
663 |
// consider the thread to be externally suspended. This means that |
|
664 |
// the code that sets _thread_blocked has been modified to do |
|
665 |
// self-suspension if the blocking condition releases. We also |
|
666 |
// used to check for CONDVAR_WAIT here, but that is now covered by |
|
667 |
// the _thread_blocked with self-suspension check. |
|
668 |
// |
|
669 |
// Return true since we wouldn't be here unless there was still an |
|
670 |
// external suspend request. |
|
671 |
*bits |= 0x00001000; |
|
672 |
return true; |
|
673 |
} else if (save_state == _thread_in_native && frame_anchor()->walkable()) { |
|
674 |
// Threads running native code will self-suspend on native==>VM/Java |
|
675 |
// transitions. If its stack is walkable (should always be the case |
|
676 |
// unless this function is called before the actual java_suspend() |
|
677 |
// call), then the wait is done. |
|
678 |
*bits |= 0x00002000; |
|
679 |
return true; |
|
680 |
} else if (!called_by_wait && !did_trans_retry && |
|
681 |
save_state == _thread_in_native_trans && |
|
682 |
frame_anchor()->walkable()) { |
|
683 |
// The thread is transitioning from thread_in_native to another |
|
684 |
// thread state. check_safepoint_and_suspend_for_native_trans() |
|
685 |
// will force the thread to self-suspend. If it hasn't gotten |
|
686 |
// there yet we may have caught the thread in-between the native |
|
687 |
// code check above and the self-suspend. Lucky us. If we were |
|
688 |
// called by wait_for_ext_suspend_completion(), then it |
|
689 |
// will be doing the retries so we don't have to. |
|
690 |
// |
|
691 |
// Since we use the saved thread state in the if-statement above, |
|
692 |
// there is a chance that the thread has already transitioned to |
|
693 |
// _thread_blocked by the time we get here. In that case, we will |
|
694 |
// make a single unnecessary pass through the logic below. This |
|
695 |
// doesn't hurt anything since we still do the trans retry. |
|
696 |
||
697 |
*bits |= 0x00004000; |
|
698 |
||
699 |
// Once the thread leaves thread_in_native_trans for another |
|
700 |
// thread state, we break out of this retry loop. We shouldn't |
|
701 |
// need this flag to prevent us from getting back here, but |
|
702 |
// sometimes paranoia is good. |
|
703 |
did_trans_retry = true; |
|
704 |
||
705 |
// We wait for the thread to transition to a more usable state. |
|
706 |
for (int i = 1; i <= SuspendRetryCount; i++) { |
|
707 |
// We used to do an "os::yield_all(i)" call here with the intention |
|
708 |
// that yielding would increase on each retry. However, the parameter |
|
709 |
// is ignored on Linux which means the yield didn't scale up. Waiting |
|
710 |
// on the SR_lock below provides a much more predictable scale up for |
|
711 |
// the delay. It also provides a simple/direct point to check for any |
|
712 |
// safepoint requests from the VMThread |
|
713 |
||
714 |
// temporarily drops SR_lock while doing wait with safepoint check |
|
715 |
// (if we're a JavaThread - the WatcherThread can also call this) |
|
716 |
// and increase delay with each retry |
|
54623
1126f0607c70
8222811: Consolidate MutexLockerEx and MutexLocker
coleenp
parents:
54495
diff
changeset
|
717 |
if (Thread::current()->is_Java_thread()) { |
1126f0607c70
8222811: Consolidate MutexLockerEx and MutexLocker
coleenp
parents:
54495
diff
changeset
|
718 |
SR_lock()->wait(i * delay); |
1126f0607c70
8222811: Consolidate MutexLockerEx and MutexLocker
coleenp
parents:
54495
diff
changeset
|
719 |
} else { |
1126f0607c70
8222811: Consolidate MutexLockerEx and MutexLocker
coleenp
parents:
54495
diff
changeset
|
720 |
SR_lock()->wait_without_safepoint_check(i * delay); |
1126f0607c70
8222811: Consolidate MutexLockerEx and MutexLocker
coleenp
parents:
54495
diff
changeset
|
721 |
} |
1 | 722 |
|
723 |
// check the actual thread state instead of what we saved above |
|
724 |
if (thread_state() != _thread_in_native_trans) { |
|
725 |
// the thread has transitioned to another thread state so |
|
726 |
// try all the checks (except this one) one more time. |
|
727 |
do_trans_retry = true; |
|
728 |
break; |
|
729 |
} |
|
730 |
} // end retry loop |
|
731 |
||
732 |
||
733 |
} |
|
734 |
} while (do_trans_retry); |
|
735 |
||
736 |
*bits |= 0x00000010; |
|
737 |
return false; |
|
738 |
} |
|
739 |
||
740 |
// Wait for an external suspend request to complete (or be cancelled). |
|
741 |
// Returns true if the thread is externally suspended and false otherwise. |
|
742 |
// |
|
743 |
bool JavaThread::wait_for_ext_suspend_completion(int retries, int delay, |
|
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
744 |
uint32_t *bits) { |
1 | 745 |
TraceSuspendDebugBits tsdb(this, true /* is_wait */, |
746 |
false /* !called_by_wait */, bits); |
|
747 |
||
748 |
// local flag copies to minimize SR_lock hold time |
|
749 |
bool is_suspended; |
|
750 |
bool pending; |
|
751 |
uint32_t reset_bits; |
|
752 |
||
753 |
// set a marker so is_ext_suspend_completed() knows we are the caller |
|
754 |
*bits |= 0x00010000; |
|
755 |
||
756 |
// We use reset_bits to reinitialize the bits value at the top of |
|
757 |
// each retry loop. This allows the caller to make use of any |
|
758 |
// unused bits for their own marking purposes. |
|
759 |
reset_bits = *bits; |
|
760 |
||
761 |
{ |
|
54623
1126f0607c70
8222811: Consolidate MutexLockerEx and MutexLocker
coleenp
parents:
54495
diff
changeset
|
762 |
MutexLocker ml(SR_lock(), Mutex::_no_safepoint_check_flag); |
1 | 763 |
is_suspended = is_ext_suspend_completed(true /* called_by_wait */, |
764 |
delay, bits); |
|
765 |
pending = is_external_suspend(); |
|
766 |
} |
|
767 |
// must release SR_lock to allow suspension to complete |
|
768 |
||
769 |
if (!pending) { |
|
770 |
// A cancelled suspend request is the only false return from |
|
771 |
// is_ext_suspend_completed() that keeps us from entering the |
|
772 |
// retry loop. |
|
773 |
*bits |= 0x00020000; |
|
774 |
return false; |
|
775 |
} |
|
776 |
||
777 |
if (is_suspended) { |
|
778 |
*bits |= 0x00040000; |
|
779 |
return true; |
|
780 |
} |
|
781 |
||
782 |
for (int i = 1; i <= retries; i++) { |
|
783 |
*bits = reset_bits; // reinit to only track last retry |
|
784 |
||
785 |
// We used to do an "os::yield_all(i)" call here with the intention |
|
786 |
// that yielding would increase on each retry. However, the parameter |
|
787 |
// is ignored on Linux which means the yield didn't scale up. Waiting |
|
788 |
// on the SR_lock below provides a much more predictable scale up for |
|
789 |
// the delay. It also provides a simple/direct point to check for any |
|
790 |
// safepoint requests from the VMThread |
|
791 |
||
792 |
{ |
|
54645
05aaccf7d558
8222988: Use MonitorLocker rather than MutexLocker when wait/notify used
coleenp
parents:
54631
diff
changeset
|
793 |
Thread* t = Thread::current(); |
05aaccf7d558
8222988: Use MonitorLocker rather than MutexLocker when wait/notify used
coleenp
parents:
54631
diff
changeset
|
794 |
MonitorLocker ml(SR_lock(), |
05aaccf7d558
8222988: Use MonitorLocker rather than MutexLocker when wait/notify used
coleenp
parents:
54631
diff
changeset
|
795 |
t->is_Java_thread() ? Mutex::_safepoint_check_flag : Mutex::_no_safepoint_check_flag); |
1 | 796 |
// wait with safepoint check (if we're a JavaThread - the WatcherThread |
797 |
// can also call this) and increase delay with each retry |
|
54645
05aaccf7d558
8222988: Use MonitorLocker rather than MutexLocker when wait/notify used
coleenp
parents:
54631
diff
changeset
|
798 |
ml.wait(i * delay); |
1 | 799 |
|
800 |
is_suspended = is_ext_suspend_completed(true /* called_by_wait */, |
|
801 |
delay, bits); |
|
802 |
||
803 |
// It is possible for the external suspend request to be cancelled |
|
804 |
// (by a resume) before the actual suspend operation is completed. |
|
805 |
// Refresh our local copy to see if we still need to wait. |
|
806 |
pending = is_external_suspend(); |
|
807 |
} |
|
808 |
||
809 |
if (!pending) { |
|
810 |
// A cancelled suspend request is the only false return from |
|
811 |
// is_ext_suspend_completed() that keeps us from staying in the |
|
812 |
// retry loop. |
|
813 |
*bits |= 0x00080000; |
|
814 |
return false; |
|
815 |
} |
|
816 |
||
817 |
if (is_suspended) { |
|
818 |
*bits |= 0x00100000; |
|
819 |
return true; |
|
820 |
} |
|
821 |
} // end retry loop |
|
822 |
||
823 |
// thread did not suspend after all our retries |
|
824 |
*bits |= 0x00200000; |
|
825 |
return false; |
|
826 |
} |
|
827 |
||
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
828 |
// Called from API entry points which perform stack walking. If the |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
829 |
// associated JavaThread is the current thread, then wait_for_suspend |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
830 |
// is not used. Otherwise, it determines if we should wait for the |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
831 |
// "other" thread to complete external suspension. (NOTE: in future |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
832 |
// releases the suspension mechanism should be reimplemented so this |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
833 |
// is not necessary.) |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
834 |
// |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
835 |
bool |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
836 |
JavaThread::is_thread_fully_suspended(bool wait_for_suspend, uint32_t *bits) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
837 |
if (this != JavaThread::current()) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
838 |
// "other" threads require special handling. |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
839 |
if (wait_for_suspend) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
840 |
// We are allowed to wait for the external suspend to complete |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
841 |
// so give the other thread a chance to get suspended. |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
842 |
if (!wait_for_ext_suspend_completion(SuspendRetryCount, |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
843 |
SuspendRetryDelay, bits)) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
844 |
// Didn't make it so let the caller know. |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
845 |
return false; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
846 |
} |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
847 |
} |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
848 |
// We aren't allowed to wait for the external suspend to complete |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
849 |
// so if the other thread isn't externally suspended we need to |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
850 |
// let the caller know. |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
851 |
else if (!is_ext_suspend_completed_with_lock(bits)) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
852 |
return false; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
853 |
} |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
854 |
} |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
855 |
|
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
856 |
return true; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
857 |
} |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
858 |
|
1 | 859 |
// GC Support |
54385
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54366
diff
changeset
|
860 |
bool Thread::claim_par_threads_do(uintx claim_token) { |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54366
diff
changeset
|
861 |
uintx token = _threads_do_token; |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54366
diff
changeset
|
862 |
if (token != claim_token) { |
59252
623722a6aeb9
8234740: Harmonize parameter order in Atomic - cmpxchg
stefank
parents:
59247
diff
changeset
|
863 |
uintx res = Atomic::cmpxchg(&_threads_do_token, token, claim_token); |
54385
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54366
diff
changeset
|
864 |
if (res == token) { |
10670
4ea0e7d2ffbc
6484982: G1: process references during evacuation pauses
johnc
parents:
10546
diff
changeset
|
865 |
return true; |
1 | 866 |
} |
54385
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54366
diff
changeset
|
867 |
guarantee(res == claim_token, "invariant"); |
1 | 868 |
} |
869 |
return false; |
|
870 |
} |
|
871 |
||
38074
8475fdc6dcc3
8154580: Save mirror in interpreter frame to enable cleanups of CLDClosure
coleenp
parents:
37477
diff
changeset
|
872 |
void Thread::oops_do(OopClosure* f, CodeBlobClosure* cf) { |
1 | 873 |
active_handles()->oops_do(f); |
874 |
// Do oop for ThreadShadow |
|
875 |
f->do_oop((oop*)&_pending_exception); |
|
876 |
handle_area()->oops_do(f); |
|
46474
c872a196b75f
8180175: ObjectSynchronizer only needs to iterate in-use monitors
rkennke
parents:
46458
diff
changeset
|
877 |
|
51998
27b48d82272c
8211384: Obsolete -XX:+/-MonitorInUseLists option
redestad
parents:
51860
diff
changeset
|
878 |
// We scan thread local monitor lists here, and the remaining global |
27b48d82272c
8211384: Obsolete -XX:+/-MonitorInUseLists option
redestad
parents:
51860
diff
changeset
|
879 |
// monitors in ObjectSynchronizer::oops_do(). |
27b48d82272c
8211384: Obsolete -XX:+/-MonitorInUseLists option
redestad
parents:
51860
diff
changeset
|
880 |
ObjectSynchronizer::thread_local_used_oops_do(this, f); |
1 | 881 |
} |
882 |
||
29576
c223b0a9872e
8061205: MetadataOnStackMark only needs to walk code cache during class redefinition
coleenp
parents:
29332
diff
changeset
|
883 |
void Thread::metadata_handles_do(void f(Metadata*)) { |
c223b0a9872e
8061205: MetadataOnStackMark only needs to walk code cache during class redefinition
coleenp
parents:
29332
diff
changeset
|
884 |
// Only walk the Handles in Thread. |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
885 |
if (metadata_handles() != NULL) { |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
886 |
for (int i = 0; i< metadata_handles()->length(); i++) { |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
887 |
f(metadata_handles()->at(i)); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
888 |
} |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
889 |
} |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
890 |
} |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
891 |
|
50785
d1b24f2ceca5
8200720: Print additional information in thread dump (times, allocated bytes etc.)
ghaug
parents:
50626
diff
changeset
|
892 |
void Thread::print_on(outputStream* st, bool print_extended_info) const { |
1 | 893 |
// get_priority assumes osthread initialized |
894 |
if (osthread() != NULL) { |
|
13857 | 895 |
int os_prio; |
896 |
if (os::get_native_priority(this, &os_prio) == OS_OK) { |
|
897 |
st->print("os_prio=%d ", os_prio); |
|
898 |
} |
|
50785
d1b24f2ceca5
8200720: Print additional information in thread dump (times, allocated bytes etc.)
ghaug
parents:
50626
diff
changeset
|
899 |
|
d1b24f2ceca5
8200720: Print additional information in thread dump (times, allocated bytes etc.)
ghaug
parents:
50626
diff
changeset
|
900 |
st->print("cpu=%.2fms ", |
d1b24f2ceca5
8200720: Print additional information in thread dump (times, allocated bytes etc.)
ghaug
parents:
50626
diff
changeset
|
901 |
os::thread_cpu_time(const_cast<Thread*>(this), true) / 1000000.0 |
d1b24f2ceca5
8200720: Print additional information in thread dump (times, allocated bytes etc.)
ghaug
parents:
50626
diff
changeset
|
902 |
); |
d1b24f2ceca5
8200720: Print additional information in thread dump (times, allocated bytes etc.)
ghaug
parents:
50626
diff
changeset
|
903 |
st->print("elapsed=%.2fs ", |
d1b24f2ceca5
8200720: Print additional information in thread dump (times, allocated bytes etc.)
ghaug
parents:
50626
diff
changeset
|
904 |
_statistical_info.getElapsedTime() / 1000.0 |
d1b24f2ceca5
8200720: Print additional information in thread dump (times, allocated bytes etc.)
ghaug
parents:
50626
diff
changeset
|
905 |
); |
d1b24f2ceca5
8200720: Print additional information in thread dump (times, allocated bytes etc.)
ghaug
parents:
50626
diff
changeset
|
906 |
if (is_Java_thread() && (PrintExtendedThreadInfo || print_extended_info)) { |
d1b24f2ceca5
8200720: Print additional information in thread dump (times, allocated bytes etc.)
ghaug
parents:
50626
diff
changeset
|
907 |
size_t allocated_bytes = (size_t) const_cast<Thread*>(this)->cooked_allocated_bytes(); |
d1b24f2ceca5
8200720: Print additional information in thread dump (times, allocated bytes etc.)
ghaug
parents:
50626
diff
changeset
|
908 |
st->print("allocated=" SIZE_FORMAT "%s ", |
d1b24f2ceca5
8200720: Print additional information in thread dump (times, allocated bytes etc.)
ghaug
parents:
50626
diff
changeset
|
909 |
byte_size_in_proper_unit(allocated_bytes), |
d1b24f2ceca5
8200720: Print additional information in thread dump (times, allocated bytes etc.)
ghaug
parents:
50626
diff
changeset
|
910 |
proper_unit_for_byte_size(allocated_bytes) |
d1b24f2ceca5
8200720: Print additional information in thread dump (times, allocated bytes etc.)
ghaug
parents:
50626
diff
changeset
|
911 |
); |
d1b24f2ceca5
8200720: Print additional information in thread dump (times, allocated bytes etc.)
ghaug
parents:
50626
diff
changeset
|
912 |
st->print("defined_classes=" INT64_FORMAT " ", _statistical_info.getDefineClassCount()); |
d1b24f2ceca5
8200720: Print additional information in thread dump (times, allocated bytes etc.)
ghaug
parents:
50626
diff
changeset
|
913 |
} |
d1b24f2ceca5
8200720: Print additional information in thread dump (times, allocated bytes etc.)
ghaug
parents:
50626
diff
changeset
|
914 |
|
33148
68fa8b6c4340
8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents:
33107
diff
changeset
|
915 |
st->print("tid=" INTPTR_FORMAT " ", p2i(this)); |
1 | 916 |
osthread()->print_on(st); |
917 |
} |
|
49956
a87f2e7a527c
8191798: redo nested ThreadsListHandle to drop Threads_lock
dcubed
parents:
49902
diff
changeset
|
918 |
ThreadsSMRSupport::print_info_on(this, st); |
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
919 |
st->print(" "); |
1 | 920 |
debug_only(if (WizardMode) print_owned_locks_on(st);) |
921 |
} |
|
922 |
||
54807 | 923 |
void Thread::print() const { print_on(tty); } |
924 |
||
1 | 925 |
// Thread::print_on_error() is called by fatal error handler. Don't use |
926 |
// any lock or allocate memory. |
|
927 |
void Thread::print_on_error(outputStream* st, char* buf, int buflen) const { |
|
37474 | 928 |
assert(!(is_Compiler_thread() || is_Java_thread()), "Can't call name() here if it allocates"); |
929 |
||
930 |
if (is_VM_thread()) { st->print("VMThread"); } |
|
931 |
else if (is_GC_task_thread()) { st->print("GCTaskThread"); } |
|
932 |
else if (is_Watcher_thread()) { st->print("WatcherThread"); } |
|
933 |
else if (is_ConcurrentGC_thread()) { st->print("ConcurrentGCThread"); } |
|
934 |
else { st->print("Thread"); } |
|
935 |
||
936 |
if (is_Named_thread()) { |
|
937 |
st->print(" \"%s\"", name()); |
|
938 |
} |
|
1 | 939 |
|
940 |
st->print(" [stack: " PTR_FORMAT "," PTR_FORMAT "]", |
|
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
941 |
p2i(stack_end()), p2i(stack_base())); |
1 | 942 |
|
943 |
if (osthread()) { |
|
944 |
st->print(" [id=%d]", osthread()->thread_id()); |
|
945 |
} |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
946 |
|
49956
a87f2e7a527c
8191798: redo nested ThreadsListHandle to drop Threads_lock
dcubed
parents:
49902
diff
changeset
|
947 |
ThreadsSMRSupport::print_info_on(this, st); |
1 | 948 |
} |
949 |
||
46742 | 950 |
void Thread::print_value_on(outputStream* st) const { |
951 |
if (is_Named_thread()) { |
|
952 |
st->print(" \"%s\" ", name()); |
|
953 |
} |
|
954 |
st->print(INTPTR_FORMAT, p2i(this)); // print address |
|
955 |
} |
|
956 |
||
1 | 957 |
#ifdef ASSERT |
958 |
void Thread::print_owned_locks_on(outputStream* st) const { |
|
57840 | 959 |
Mutex* cur = _owned_locks; |
1 | 960 |
if (cur == NULL) { |
961 |
st->print(" (no locks) "); |
|
962 |
} else { |
|
963 |
st->print_cr(" Locks owned:"); |
|
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
964 |
while (cur) { |
1 | 965 |
cur->print_on(st); |
966 |
cur = cur->next(); |
|
967 |
} |
|
968 |
} |
|
969 |
} |
|
970 |
||
57745 | 971 |
// Checks safepoint allowed and clears unhandled oops at potential safepoints. |
972 |
void Thread::check_possible_safepoint() { |
|
973 |
if (!is_Java_thread()) return; |
|
974 |
||
975 |
if (_no_safepoint_count > 0) { |
|
58291
a013100f7a35
8213150: Add verification for locking by VMThread
coleenp
parents:
58282
diff
changeset
|
976 |
print_owned_locks(); |
57745 | 977 |
fatal("Possible safepoint reached by thread that does not allow it"); |
978 |
} |
|
979 |
#ifdef CHECK_UNHANDLED_OOPS |
|
980 |
// Clear unhandled oops in JavaThreads so we get a crash right away. |
|
981 |
clear_unhandled_oops(); |
|
982 |
#endif // CHECK_UNHANDLED_OOPS |
|
983 |
} |
|
1 | 984 |
|
58291
a013100f7a35
8213150: Add verification for locking by VMThread
coleenp
parents:
58282
diff
changeset
|
985 |
void Thread::check_for_valid_safepoint_state() { |
57745 | 986 |
if (!is_Java_thread()) return; |
987 |
||
58291
a013100f7a35
8213150: Add verification for locking by VMThread
coleenp
parents:
58282
diff
changeset
|
988 |
// Check NoSafepointVerifier, which is implied by locks taken that can be |
a013100f7a35
8213150: Add verification for locking by VMThread
coleenp
parents:
58282
diff
changeset
|
989 |
// shared with the VM thread. This makes sure that no locks with allow_vm_block |
a013100f7a35
8213150: Add verification for locking by VMThread
coleenp
parents:
58282
diff
changeset
|
990 |
// are held. |
57745 | 991 |
check_possible_safepoint(); |
992 |
||
993 |
if (((JavaThread*)this)->thread_state() != _thread_in_vm) { |
|
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
994 |
fatal("LEAF method calling lock?"); |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
995 |
} |
1 | 996 |
|
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
997 |
if (GCALotAtAllSafepoints) { |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
998 |
// We could enter a safepoint here and thus have a gc |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
999 |
InterfaceSupport::check_gc_alot(); |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1000 |
} |
1 | 1001 |
} |
57745 | 1002 |
#endif // ASSERT |
1 | 1003 |
|
1004 |
bool Thread::is_in_stack(address adr) const { |
|
1005 |
assert(Thread::current() == this, "is_in_stack can only be called from current thread"); |
|
1006 |
address end = os::current_stack_pointer(); |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
1007 |
// Allow non Java threads to call this without stack_base |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
1008 |
if (_stack_base == NULL) return true; |
59132
189f47d990b5
8215355: Object monitor deadlock with no threads holding the monitor (using jemalloc 5.1)
dholmes
parents:
59053
diff
changeset
|
1009 |
if (stack_base() > adr && adr >= end) return true; |
1 | 1010 |
|
1011 |
return false; |
|
1012 |
} |
|
1013 |
||
18938
ff8f8cec9434
8016131: nsk/sysdict/vm/stress/chain tests crash the VM in 'entry_frame_is_first()'
rbackman
parents:
18931
diff
changeset
|
1014 |
bool Thread::is_in_usable_stack(address adr) const { |
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1015 |
size_t stack_guard_size = os::uses_stack_guard_pages() ? JavaThread::stack_guard_zone_size() : 0; |
18938
ff8f8cec9434
8016131: nsk/sysdict/vm/stress/chain tests crash the VM in 'entry_frame_is_first()'
rbackman
parents:
18931
diff
changeset
|
1016 |
size_t usable_stack_size = _stack_size - stack_guard_size; |
ff8f8cec9434
8016131: nsk/sysdict/vm/stress/chain tests crash the VM in 'entry_frame_is_first()'
rbackman
parents:
18931
diff
changeset
|
1017 |
|
ff8f8cec9434
8016131: nsk/sysdict/vm/stress/chain tests crash the VM in 'entry_frame_is_first()'
rbackman
parents:
18931
diff
changeset
|
1018 |
return ((adr < stack_base()) && (adr >= stack_base() - usable_stack_size)); |
ff8f8cec9434
8016131: nsk/sysdict/vm/stress/chain tests crash the VM in 'entry_frame_is_first()'
rbackman
parents:
18931
diff
changeset
|
1019 |
} |
ff8f8cec9434
8016131: nsk/sysdict/vm/stress/chain tests crash the VM in 'entry_frame_is_first()'
rbackman
parents:
18931
diff
changeset
|
1020 |
|
ff8f8cec9434
8016131: nsk/sysdict/vm/stress/chain tests crash the VM in 'entry_frame_is_first()'
rbackman
parents:
18931
diff
changeset
|
1021 |
|
1 | 1022 |
// We had to move these methods here, because vm threads get into ObjectSynchronizer::enter |
1023 |
// However, there is a note in JavaThread::is_lock_owned() about the VM threads not being |
|
1024 |
// used for compilation in the future. If that change is made, the need for these methods |
|
1025 |
// should be revisited, and they should be removed if possible. |
|
1026 |
||
1027 |
bool Thread::is_lock_owned(address adr) const { |
|
6183
4c74cfe14f20
6975078: assert(allocated_on_res_area() || allocated_on_C_heap() || allocated_on_arena()
kvn
parents:
5888
diff
changeset
|
1028 |
return on_local_stack(adr); |
1 | 1029 |
} |
1030 |
||
1031 |
bool Thread::set_as_starting_thread() { |
|
53103
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1032 |
assert(_starting_thread == NULL, "already initialized: " |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1033 |
"_starting_thread=" INTPTR_FORMAT, p2i(_starting_thread)); |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1034 |
// NOTE: this must be called inside the main thread. |
53103
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1035 |
DEBUG_ONLY(_starting_thread = this;) |
1 | 1036 |
return os::create_main_thread((JavaThread*)this); |
1037 |
} |
|
1038 |
||
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
8061
diff
changeset
|
1039 |
static void initialize_class(Symbol* class_name, TRAPS) { |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
1040 |
Klass* klass = SystemDictionary::resolve_or_fail(class_name, true, CHECK); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
1041 |
InstanceKlass::cast(klass)->initialize(CHECK); |
1 | 1042 |
} |
1043 |
||
1044 |
||
1045 |
// Creates the initial ThreadGroup |
|
1046 |
static Handle create_initial_thread_group(TRAPS) { |
|
50217
843fc56f4686
8203381: Replace InstanceKlass::allocate_instance_handle with JavaCalls::construct_new_instance
iklam
parents:
50184
diff
changeset
|
1047 |
Handle system_instance = JavaCalls::construct_new_instance( |
843fc56f4686
8203381: Replace InstanceKlass::allocate_instance_handle with JavaCalls::construct_new_instance
iklam
parents:
50184
diff
changeset
|
1048 |
SystemDictionary::ThreadGroup_klass(), |
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
8061
diff
changeset
|
1049 |
vmSymbols::void_method_signature(), |
1 | 1050 |
CHECK_NH); |
1051 |
Universe::set_system_thread_group(system_instance()); |
|
1052 |
||
50217
843fc56f4686
8203381: Replace InstanceKlass::allocate_instance_handle with JavaCalls::construct_new_instance
iklam
parents:
50184
diff
changeset
|
1053 |
Handle string = java_lang_String::create_from_str("main", CHECK_NH); |
843fc56f4686
8203381: Replace InstanceKlass::allocate_instance_handle with JavaCalls::construct_new_instance
iklam
parents:
50184
diff
changeset
|
1054 |
Handle main_instance = JavaCalls::construct_new_instance( |
843fc56f4686
8203381: Replace InstanceKlass::allocate_instance_handle with JavaCalls::construct_new_instance
iklam
parents:
50184
diff
changeset
|
1055 |
SystemDictionary::ThreadGroup_klass(), |
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
8061
diff
changeset
|
1056 |
vmSymbols::threadgroup_string_void_signature(), |
1 | 1057 |
system_instance, |
1058 |
string, |
|
1059 |
CHECK_NH); |
|
1060 |
return main_instance; |
|
1061 |
} |
|
1062 |
||
1063 |
// Creates the initial Thread |
|
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1064 |
static oop create_initial_thread(Handle thread_group, JavaThread* thread, |
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1065 |
TRAPS) { |
50217
843fc56f4686
8203381: Replace InstanceKlass::allocate_instance_handle with JavaCalls::construct_new_instance
iklam
parents:
50184
diff
changeset
|
1066 |
InstanceKlass* ik = SystemDictionary::Thread_klass(); |
843fc56f4686
8203381: Replace InstanceKlass::allocate_instance_handle with JavaCalls::construct_new_instance
iklam
parents:
50184
diff
changeset
|
1067 |
assert(ik->is_initialized(), "must be"); |
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
46284
diff
changeset
|
1068 |
instanceHandle thread_oop = ik->allocate_instance_handle(CHECK_NULL); |
1 | 1069 |
|
50217
843fc56f4686
8203381: Replace InstanceKlass::allocate_instance_handle with JavaCalls::construct_new_instance
iklam
parents:
50184
diff
changeset
|
1070 |
// Cannot use JavaCalls::construct_new_instance because the java.lang.Thread |
843fc56f4686
8203381: Replace InstanceKlass::allocate_instance_handle with JavaCalls::construct_new_instance
iklam
parents:
50184
diff
changeset
|
1071 |
// constructor calls Thread.current(), which must be set here for the |
843fc56f4686
8203381: Replace InstanceKlass::allocate_instance_handle with JavaCalls::construct_new_instance
iklam
parents:
50184
diff
changeset
|
1072 |
// initial thread. |
1 | 1073 |
java_lang_Thread::set_thread(thread_oop(), thread); |
1074 |
java_lang_Thread::set_priority(thread_oop(), NormPriority); |
|
1075 |
thread->set_threadObj(thread_oop()); |
|
1076 |
||
1077 |
Handle string = java_lang_String::create_from_str("main", CHECK_NULL); |
|
1078 |
||
1079 |
JavaValue result(T_VOID); |
|
1080 |
JavaCalls::call_special(&result, thread_oop, |
|
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
46284
diff
changeset
|
1081 |
ik, |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1082 |
vmSymbols::object_initializer_name(), |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1083 |
vmSymbols::threadgroup_string_void_signature(), |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1084 |
thread_group, |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1085 |
string, |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1086 |
CHECK_NULL); |
1 | 1087 |
return thread_oop(); |
1088 |
} |
|
1089 |
||
13106 | 1090 |
char java_runtime_name[128] = ""; |
14289
aec758622b4b
8002078: hs_err_pid file should report full JDK version string
sla
parents:
14120
diff
changeset
|
1091 |
char java_runtime_version[128] = ""; |
58842
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1092 |
char java_runtime_vendor_version[128] = ""; |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1093 |
char java_runtime_vendor_vm_bug_url[128] = ""; |
13106 | 1094 |
|
36207
09a0c20ff517
8150162: Move sun.misc.Version to a truly internal package
chegar
parents:
36199
diff
changeset
|
1095 |
// extract the JRE name from java.lang.VersionProps.java_runtime_name |
13106 | 1096 |
static const char* get_java_runtime_name(TRAPS) { |
36207
09a0c20ff517
8150162: Move sun.misc.Version to a truly internal package
chegar
parents:
36199
diff
changeset
|
1097 |
Klass* k = SystemDictionary::find(vmSymbols::java_lang_VersionProps(), |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1098 |
Handle(), Handle(), CHECK_AND_CLEAR_NULL); |
13106 | 1099 |
fieldDescriptor fd; |
1100 |
bool found = k != NULL && |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
1101 |
InstanceKlass::cast(k)->find_local_field(vmSymbols::java_runtime_name_name(), |
13106 | 1102 |
vmSymbols::string_signature(), &fd); |
1103 |
if (found) { |
|
1104 |
oop name_oop = k->java_mirror()->obj_field(fd.offset()); |
|
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1105 |
if (name_oop == NULL) { |
13106 | 1106 |
return NULL; |
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1107 |
} |
13106 | 1108 |
const char* name = java_lang_String::as_utf8_string(name_oop, |
1109 |
java_runtime_name, |
|
1110 |
sizeof(java_runtime_name)); |
|
1111 |
return name; |
|
1112 |
} else { |
|
1113 |
return NULL; |
|
1114 |
} |
|
1115 |
} |
|
1116 |
||
36207
09a0c20ff517
8150162: Move sun.misc.Version to a truly internal package
chegar
parents:
36199
diff
changeset
|
1117 |
// extract the JRE version from java.lang.VersionProps.java_runtime_version |
14289
aec758622b4b
8002078: hs_err_pid file should report full JDK version string
sla
parents:
14120
diff
changeset
|
1118 |
static const char* get_java_runtime_version(TRAPS) { |
36207
09a0c20ff517
8150162: Move sun.misc.Version to a truly internal package
chegar
parents:
36199
diff
changeset
|
1119 |
Klass* k = SystemDictionary::find(vmSymbols::java_lang_VersionProps(), |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1120 |
Handle(), Handle(), CHECK_AND_CLEAR_NULL); |
14289
aec758622b4b
8002078: hs_err_pid file should report full JDK version string
sla
parents:
14120
diff
changeset
|
1121 |
fieldDescriptor fd; |
aec758622b4b
8002078: hs_err_pid file should report full JDK version string
sla
parents:
14120
diff
changeset
|
1122 |
bool found = k != NULL && |
aec758622b4b
8002078: hs_err_pid file should report full JDK version string
sla
parents:
14120
diff
changeset
|
1123 |
InstanceKlass::cast(k)->find_local_field(vmSymbols::java_runtime_version_name(), |
aec758622b4b
8002078: hs_err_pid file should report full JDK version string
sla
parents:
14120
diff
changeset
|
1124 |
vmSymbols::string_signature(), &fd); |
aec758622b4b
8002078: hs_err_pid file should report full JDK version string
sla
parents:
14120
diff
changeset
|
1125 |
if (found) { |
aec758622b4b
8002078: hs_err_pid file should report full JDK version string
sla
parents:
14120
diff
changeset
|
1126 |
oop name_oop = k->java_mirror()->obj_field(fd.offset()); |
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1127 |
if (name_oop == NULL) { |
14289
aec758622b4b
8002078: hs_err_pid file should report full JDK version string
sla
parents:
14120
diff
changeset
|
1128 |
return NULL; |
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1129 |
} |
14289
aec758622b4b
8002078: hs_err_pid file should report full JDK version string
sla
parents:
14120
diff
changeset
|
1130 |
const char* name = java_lang_String::as_utf8_string(name_oop, |
aec758622b4b
8002078: hs_err_pid file should report full JDK version string
sla
parents:
14120
diff
changeset
|
1131 |
java_runtime_version, |
aec758622b4b
8002078: hs_err_pid file should report full JDK version string
sla
parents:
14120
diff
changeset
|
1132 |
sizeof(java_runtime_version)); |
aec758622b4b
8002078: hs_err_pid file should report full JDK version string
sla
parents:
14120
diff
changeset
|
1133 |
return name; |
aec758622b4b
8002078: hs_err_pid file should report full JDK version string
sla
parents:
14120
diff
changeset
|
1134 |
} else { |
aec758622b4b
8002078: hs_err_pid file should report full JDK version string
sla
parents:
14120
diff
changeset
|
1135 |
return NULL; |
aec758622b4b
8002078: hs_err_pid file should report full JDK version string
sla
parents:
14120
diff
changeset
|
1136 |
} |
aec758622b4b
8002078: hs_err_pid file should report full JDK version string
sla
parents:
14120
diff
changeset
|
1137 |
} |
aec758622b4b
8002078: hs_err_pid file should report full JDK version string
sla
parents:
14120
diff
changeset
|
1138 |
|
58842
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1139 |
// extract the JRE vendor version from java.lang.VersionProps.VENDOR_VERSION |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1140 |
static const char* get_java_runtime_vendor_version(TRAPS) { |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1141 |
Klass* k = SystemDictionary::find(vmSymbols::java_lang_VersionProps(), |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1142 |
Handle(), Handle(), CHECK_AND_CLEAR_NULL); |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1143 |
fieldDescriptor fd; |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1144 |
bool found = k != NULL && |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1145 |
InstanceKlass::cast(k)->find_local_field(vmSymbols::java_runtime_vendor_version_name(), |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1146 |
vmSymbols::string_signature(), &fd); |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1147 |
if (found) { |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1148 |
oop name_oop = k->java_mirror()->obj_field(fd.offset()); |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1149 |
if (name_oop == NULL) { |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1150 |
return NULL; |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1151 |
} |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1152 |
const char* name = java_lang_String::as_utf8_string(name_oop, |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1153 |
java_runtime_vendor_version, |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1154 |
sizeof(java_runtime_vendor_version)); |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1155 |
return name; |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1156 |
} else { |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1157 |
return NULL; |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1158 |
} |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1159 |
} |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1160 |
|
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1161 |
// extract the JRE vendor VM bug URL from java.lang.VersionProps.VENDOR_URL_VM_BUG |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1162 |
static const char* get_java_runtime_vendor_vm_bug_url(TRAPS) { |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1163 |
Klass* k = SystemDictionary::find(vmSymbols::java_lang_VersionProps(), |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1164 |
Handle(), Handle(), CHECK_AND_CLEAR_NULL); |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1165 |
fieldDescriptor fd; |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1166 |
bool found = k != NULL && |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1167 |
InstanceKlass::cast(k)->find_local_field(vmSymbols::java_runtime_vendor_vm_bug_url_name(), |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1168 |
vmSymbols::string_signature(), &fd); |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1169 |
if (found) { |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1170 |
oop name_oop = k->java_mirror()->obj_field(fd.offset()); |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1171 |
if (name_oop == NULL) { |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1172 |
return NULL; |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1173 |
} |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1174 |
const char* name = java_lang_String::as_utf8_string(name_oop, |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1175 |
java_runtime_vendor_vm_bug_url, |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1176 |
sizeof(java_runtime_vendor_vm_bug_url)); |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1177 |
return name; |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1178 |
} else { |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1179 |
return NULL; |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1180 |
} |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1181 |
} |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
1182 |
|
7900
4c7fc6332f7e
6994753: Implement optional hook to a Java method at VM startup.
kevinw
parents:
7897
diff
changeset
|
1183 |
// General purpose hook into Java code, run once when the VM is initialized. |
4c7fc6332f7e
6994753: Implement optional hook to a Java method at VM startup.
kevinw
parents:
7897
diff
changeset
|
1184 |
// The Java library method itself may be changed independently from the VM. |
4c7fc6332f7e
6994753: Implement optional hook to a Java method at VM startup.
kevinw
parents:
7897
diff
changeset
|
1185 |
static void call_postVMInitHook(TRAPS) { |
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
46284
diff
changeset
|
1186 |
Klass* klass = SystemDictionary::resolve_or_null(vmSymbols::jdk_internal_vm_PostVMInitHook(), THREAD); |
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
46284
diff
changeset
|
1187 |
if (klass != NULL) { |
7900
4c7fc6332f7e
6994753: Implement optional hook to a Java method at VM startup.
kevinw
parents:
7897
diff
changeset
|
1188 |
JavaValue result(T_VOID); |
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
8061
diff
changeset
|
1189 |
JavaCalls::call_static(&result, klass, vmSymbols::run_method_name(), |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1190 |
vmSymbols::void_method_signature(), |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1191 |
CHECK); |
7900
4c7fc6332f7e
6994753: Implement optional hook to a Java method at VM startup.
kevinw
parents:
7897
diff
changeset
|
1192 |
} |
4c7fc6332f7e
6994753: Implement optional hook to a Java method at VM startup.
kevinw
parents:
7897
diff
changeset
|
1193 |
} |
4c7fc6332f7e
6994753: Implement optional hook to a Java method at VM startup.
kevinw
parents:
7897
diff
changeset
|
1194 |
|
27917
c5937f7b4e8b
8064669: compiler/whitebox/AllocationCodeBlobTest.java crashes / asserts
iignatyev
parents:
27656
diff
changeset
|
1195 |
void JavaThread::allocate_threadObj(Handle thread_group, const char* thread_name, |
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1196 |
bool daemon, TRAPS) { |
1 | 1197 |
assert(thread_group.not_null(), "thread group should be specified"); |
1198 |
assert(threadObj() == NULL, "should only create Java thread object once"); |
|
1199 |
||
50217
843fc56f4686
8203381: Replace InstanceKlass::allocate_instance_handle with JavaCalls::construct_new_instance
iklam
parents:
50184
diff
changeset
|
1200 |
InstanceKlass* ik = SystemDictionary::Thread_klass(); |
843fc56f4686
8203381: Replace InstanceKlass::allocate_instance_handle with JavaCalls::construct_new_instance
iklam
parents:
50184
diff
changeset
|
1201 |
assert(ik->is_initialized(), "must be"); |
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
46284
diff
changeset
|
1202 |
instanceHandle thread_oop = ik->allocate_instance_handle(CHECK); |
1 | 1203 |
|
50217
843fc56f4686
8203381: Replace InstanceKlass::allocate_instance_handle with JavaCalls::construct_new_instance
iklam
parents:
50184
diff
changeset
|
1204 |
// We are called from jni_AttachCurrentThread/jni_AttachCurrentThreadAsDaemon. |
843fc56f4686
8203381: Replace InstanceKlass::allocate_instance_handle with JavaCalls::construct_new_instance
iklam
parents:
50184
diff
changeset
|
1205 |
// We cannot use JavaCalls::construct_new_instance because the java.lang.Thread |
843fc56f4686
8203381: Replace InstanceKlass::allocate_instance_handle with JavaCalls::construct_new_instance
iklam
parents:
50184
diff
changeset
|
1206 |
// constructor calls Thread.current(), which must be set here. |
1 | 1207 |
java_lang_Thread::set_thread(thread_oop(), this); |
1208 |
java_lang_Thread::set_priority(thread_oop(), NormPriority); |
|
1209 |
set_threadObj(thread_oop()); |
|
1210 |
||
1211 |
JavaValue result(T_VOID); |
|
1212 |
if (thread_name != NULL) { |
|
1213 |
Handle name = java_lang_String::create_from_str(thread_name, CHECK); |
|
1214 |
// Thread gets assigned specified name and null target |
|
1215 |
JavaCalls::call_special(&result, |
|
1216 |
thread_oop, |
|
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
46284
diff
changeset
|
1217 |
ik, |
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
8061
diff
changeset
|
1218 |
vmSymbols::object_initializer_name(), |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
8061
diff
changeset
|
1219 |
vmSymbols::threadgroup_string_void_signature(), |
50217
843fc56f4686
8203381: Replace InstanceKlass::allocate_instance_handle with JavaCalls::construct_new_instance
iklam
parents:
50184
diff
changeset
|
1220 |
thread_group, |
843fc56f4686
8203381: Replace InstanceKlass::allocate_instance_handle with JavaCalls::construct_new_instance
iklam
parents:
50184
diff
changeset
|
1221 |
name, |
1 | 1222 |
THREAD); |
1223 |
} else { |
|
1224 |
// Thread gets assigned name "Thread-nnn" and null target |
|
1225 |
// (java.lang.Thread doesn't have a constructor taking only a ThreadGroup argument) |
|
1226 |
JavaCalls::call_special(&result, |
|
1227 |
thread_oop, |
|
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
46284
diff
changeset
|
1228 |
ik, |
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
8061
diff
changeset
|
1229 |
vmSymbols::object_initializer_name(), |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
8061
diff
changeset
|
1230 |
vmSymbols::threadgroup_runnable_void_signature(), |
50217
843fc56f4686
8203381: Replace InstanceKlass::allocate_instance_handle with JavaCalls::construct_new_instance
iklam
parents:
50184
diff
changeset
|
1231 |
thread_group, |
843fc56f4686
8203381: Replace InstanceKlass::allocate_instance_handle with JavaCalls::construct_new_instance
iklam
parents:
50184
diff
changeset
|
1232 |
Handle(), |
1 | 1233 |
THREAD); |
1234 |
} |
|
1235 |
||
1236 |
||
1237 |
if (daemon) { |
|
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1238 |
java_lang_Thread::set_daemon(thread_oop()); |
1 | 1239 |
} |
1240 |
||
1241 |
if (HAS_PENDING_EXCEPTION) { |
|
1242 |
return; |
|
1243 |
} |
|
1244 |
||
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
46284
diff
changeset
|
1245 |
Klass* group = SystemDictionary::ThreadGroup_klass(); |
27917
c5937f7b4e8b
8064669: compiler/whitebox/AllocationCodeBlobTest.java crashes / asserts
iignatyev
parents:
27656
diff
changeset
|
1246 |
Handle threadObj(THREAD, this->threadObj()); |
1 | 1247 |
|
1248 |
JavaCalls::call_special(&result, |
|
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1249 |
thread_group, |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1250 |
group, |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1251 |
vmSymbols::add_method_name(), |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1252 |
vmSymbols::thread_void_signature(), |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1253 |
threadObj, // Arg 1 |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1254 |
THREAD); |
1 | 1255 |
} |
1256 |
||
51548 | 1257 |
// List of all NonJavaThreads and safe iteration over that list. |
1258 |
||
1259 |
class NonJavaThread::List { |
|
51511
eb8d5aeabab3
8209850: Allow NamedThreads to use GlobalCounter critical sections
kbarrett
parents:
51467
diff
changeset
|
1260 |
public: |
51548 | 1261 |
NonJavaThread* volatile _head; |
51511
eb8d5aeabab3
8209850: Allow NamedThreads to use GlobalCounter critical sections
kbarrett
parents:
51467
diff
changeset
|
1262 |
SingleWriterSynchronizer _protect; |
eb8d5aeabab3
8209850: Allow NamedThreads to use GlobalCounter critical sections
kbarrett
parents:
51467
diff
changeset
|
1263 |
|
eb8d5aeabab3
8209850: Allow NamedThreads to use GlobalCounter critical sections
kbarrett
parents:
51467
diff
changeset
|
1264 |
List() : _head(NULL), _protect() {} |
eb8d5aeabab3
8209850: Allow NamedThreads to use GlobalCounter critical sections
kbarrett
parents:
51467
diff
changeset
|
1265 |
}; |
eb8d5aeabab3
8209850: Allow NamedThreads to use GlobalCounter critical sections
kbarrett
parents:
51467
diff
changeset
|
1266 |
|
51548 | 1267 |
NonJavaThread::List NonJavaThread::_the_list; |
1268 |
||
1269 |
NonJavaThread::Iterator::Iterator() : |
|
51511
eb8d5aeabab3
8209850: Allow NamedThreads to use GlobalCounter critical sections
kbarrett
parents:
51467
diff
changeset
|
1270 |
_protect_enter(_the_list._protect.enter()), |
59247
56bf71d64d51
8234562: Move OrderAccess::release_store*/load_acquire to Atomic
stefank
parents:
59132
diff
changeset
|
1271 |
_current(Atomic::load_acquire(&_the_list._head)) |
51511
eb8d5aeabab3
8209850: Allow NamedThreads to use GlobalCounter critical sections
kbarrett
parents:
51467
diff
changeset
|
1272 |
{} |
eb8d5aeabab3
8209850: Allow NamedThreads to use GlobalCounter critical sections
kbarrett
parents:
51467
diff
changeset
|
1273 |
|
51548 | 1274 |
NonJavaThread::Iterator::~Iterator() { |
51511
eb8d5aeabab3
8209850: Allow NamedThreads to use GlobalCounter critical sections
kbarrett
parents:
51467
diff
changeset
|
1275 |
_the_list._protect.exit(_protect_enter); |
eb8d5aeabab3
8209850: Allow NamedThreads to use GlobalCounter critical sections
kbarrett
parents:
51467
diff
changeset
|
1276 |
} |
eb8d5aeabab3
8209850: Allow NamedThreads to use GlobalCounter critical sections
kbarrett
parents:
51467
diff
changeset
|
1277 |
|
51548 | 1278 |
void NonJavaThread::Iterator::step() { |
51511
eb8d5aeabab3
8209850: Allow NamedThreads to use GlobalCounter critical sections
kbarrett
parents:
51467
diff
changeset
|
1279 |
assert(!end(), "precondition"); |
59247
56bf71d64d51
8234562: Move OrderAccess::release_store*/load_acquire to Atomic
stefank
parents:
59132
diff
changeset
|
1280 |
_current = Atomic::load_acquire(&_current->_next); |
51548 | 1281 |
} |
1282 |
||
1283 |
NonJavaThread::NonJavaThread() : Thread(), _next(NULL) { |
|
53103
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1284 |
assert(BarrierSet::barrier_set() != NULL, "NonJavaThread created too soon!"); |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1285 |
} |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1286 |
|
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1287 |
NonJavaThread::~NonJavaThread() { } |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1288 |
|
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1289 |
void NonJavaThread::add_to_the_list() { |
54623
1126f0607c70
8222811: Consolidate MutexLockerEx and MutexLocker
coleenp
parents:
54495
diff
changeset
|
1290 |
MutexLocker ml(NonJavaThreadsList_lock, Mutex::_no_safepoint_check_flag); |
54366
2b48cedce327
8220671: Initialization race for non-JavaThread PtrQueues
kbarrett
parents:
54329
diff
changeset
|
1291 |
// Initialize BarrierSet-related data before adding to list. |
2b48cedce327
8220671: Initialization race for non-JavaThread PtrQueues
kbarrett
parents:
54329
diff
changeset
|
1292 |
BarrierSet::barrier_set()->on_thread_attach(this); |
59247
56bf71d64d51
8234562: Move OrderAccess::release_store*/load_acquire to Atomic
stefank
parents:
59132
diff
changeset
|
1293 |
Atomic::release_store(&_next, _the_list._head); |
56bf71d64d51
8234562: Move OrderAccess::release_store*/load_acquire to Atomic
stefank
parents:
59132
diff
changeset
|
1294 |
Atomic::release_store(&_the_list._head, this); |
51548 | 1295 |
} |
1296 |
||
53103
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1297 |
void NonJavaThread::remove_from_the_list() { |
54366
2b48cedce327
8220671: Initialization race for non-JavaThread PtrQueues
kbarrett
parents:
54329
diff
changeset
|
1298 |
{ |
54623
1126f0607c70
8222811: Consolidate MutexLockerEx and MutexLocker
coleenp
parents:
54495
diff
changeset
|
1299 |
MutexLocker ml(NonJavaThreadsList_lock, Mutex::_no_safepoint_check_flag); |
54366
2b48cedce327
8220671: Initialization race for non-JavaThread PtrQueues
kbarrett
parents:
54329
diff
changeset
|
1300 |
// Cleanup BarrierSet-related data before removing from list. |
2b48cedce327
8220671: Initialization race for non-JavaThread PtrQueues
kbarrett
parents:
54329
diff
changeset
|
1301 |
BarrierSet::barrier_set()->on_thread_detach(this); |
2b48cedce327
8220671: Initialization race for non-JavaThread PtrQueues
kbarrett
parents:
54329
diff
changeset
|
1302 |
NonJavaThread* volatile* p = &_the_list._head; |
2b48cedce327
8220671: Initialization race for non-JavaThread PtrQueues
kbarrett
parents:
54329
diff
changeset
|
1303 |
for (NonJavaThread* t = *p; t != NULL; p = &t->_next, t = *p) { |
2b48cedce327
8220671: Initialization race for non-JavaThread PtrQueues
kbarrett
parents:
54329
diff
changeset
|
1304 |
if (t == this) { |
2b48cedce327
8220671: Initialization race for non-JavaThread PtrQueues
kbarrett
parents:
54329
diff
changeset
|
1305 |
*p = _next; |
2b48cedce327
8220671: Initialization race for non-JavaThread PtrQueues
kbarrett
parents:
54329
diff
changeset
|
1306 |
break; |
2b48cedce327
8220671: Initialization race for non-JavaThread PtrQueues
kbarrett
parents:
54329
diff
changeset
|
1307 |
} |
51548 | 1308 |
} |
1309 |
} |
|
54366
2b48cedce327
8220671: Initialization race for non-JavaThread PtrQueues
kbarrett
parents:
54329
diff
changeset
|
1310 |
// Wait for any in-progress iterators. Concurrent synchronize is not |
2b48cedce327
8220671: Initialization race for non-JavaThread PtrQueues
kbarrett
parents:
54329
diff
changeset
|
1311 |
// allowed, so do it while holding a dedicated lock. Outside and distinct |
2b48cedce327
8220671: Initialization race for non-JavaThread PtrQueues
kbarrett
parents:
54329
diff
changeset
|
1312 |
// from NJTList_lock in case an iteration attempts to lock it. |
54623
1126f0607c70
8222811: Consolidate MutexLockerEx and MutexLocker
coleenp
parents:
54495
diff
changeset
|
1313 |
MutexLocker ml(NonJavaThreadsListSync_lock, Mutex::_no_safepoint_check_flag); |
54366
2b48cedce327
8220671: Initialization race for non-JavaThread PtrQueues
kbarrett
parents:
54329
diff
changeset
|
1314 |
_the_list._protect.synchronize(); |
2b48cedce327
8220671: Initialization race for non-JavaThread PtrQueues
kbarrett
parents:
54329
diff
changeset
|
1315 |
_next = NULL; // Safe to drop the link now. |
51511
eb8d5aeabab3
8209850: Allow NamedThreads to use GlobalCounter critical sections
kbarrett
parents:
51467
diff
changeset
|
1316 |
} |
eb8d5aeabab3
8209850: Allow NamedThreads to use GlobalCounter critical sections
kbarrett
parents:
51467
diff
changeset
|
1317 |
|
53103
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1318 |
void NonJavaThread::pre_run() { |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1319 |
add_to_the_list(); |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1320 |
|
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1321 |
// This is slightly odd in that NamedThread is a subclass, but |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1322 |
// in fact name() is defined in Thread |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1323 |
assert(this->name() != NULL, "thread name was not set before it was started"); |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1324 |
this->set_native_thread_name(this->name()); |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1325 |
} |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1326 |
|
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1327 |
void NonJavaThread::post_run() { |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1328 |
JFR_ONLY(Jfr::on_thread_exit(this);) |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1329 |
remove_from_the_list(); |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1330 |
// Ensure thread-local-storage is cleared before termination. |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1331 |
Thread::clear_thread_current(); |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1332 |
} |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1333 |
|
1 | 1334 |
// NamedThread -- non-JavaThread subclasses with multiple |
1335 |
// uniquely named instances should derive from this. |
|
51511
eb8d5aeabab3
8209850: Allow NamedThreads to use GlobalCounter critical sections
kbarrett
parents:
51467
diff
changeset
|
1336 |
NamedThread::NamedThread() : |
51548 | 1337 |
NonJavaThread(), |
51511
eb8d5aeabab3
8209850: Allow NamedThreads to use GlobalCounter critical sections
kbarrett
parents:
51467
diff
changeset
|
1338 |
_name(NULL), |
eb8d5aeabab3
8209850: Allow NamedThreads to use GlobalCounter critical sections
kbarrett
parents:
51467
diff
changeset
|
1339 |
_processed_thread(NULL), |
51548 | 1340 |
_gc_id(GCId::undefined()) |
1341 |
{} |
|
1 | 1342 |
|
1343 |
NamedThread::~NamedThread() { |
|
58084
cddef3bde924
8230398: Remove NULL checks before FREE_C_HEAP_ARRAY
lkorinth
parents:
58083
diff
changeset
|
1344 |
FREE_C_HEAP_ARRAY(char, _name); |
1 | 1345 |
} |
1346 |
||
1347 |
void NamedThread::set_name(const char* format, ...) { |
|
1348 |
guarantee(_name == NULL, "Only get to set name once."); |
|
13195 | 1349 |
_name = NEW_C_HEAP_ARRAY(char, max_name_len, mtThread); |
1 | 1350 |
va_list ap; |
1351 |
va_start(ap, format); |
|
1352 |
jio_vsnprintf(_name, max_name_len, format, ap); |
|
1353 |
va_end(ap); |
|
1354 |
} |
|
1355 |
||
24331
c0bc7e5653fb
6885993: Named Thread: introduce print() and print_on(outputStream* st) methods
zgu
parents:
23855
diff
changeset
|
1356 |
void NamedThread::print_on(outputStream* st) const { |
c0bc7e5653fb
6885993: Named Thread: introduce print() and print_on(outputStream* st) methods
zgu
parents:
23855
diff
changeset
|
1357 |
st->print("\"%s\" ", name()); |
c0bc7e5653fb
6885993: Named Thread: introduce print() and print_on(outputStream* st) methods
zgu
parents:
23855
diff
changeset
|
1358 |
Thread::print_on(st); |
c0bc7e5653fb
6885993: Named Thread: introduce print() and print_on(outputStream* st) methods
zgu
parents:
23855
diff
changeset
|
1359 |
st->cr(); |
c0bc7e5653fb
6885993: Named Thread: introduce print() and print_on(outputStream* st) methods
zgu
parents:
23855
diff
changeset
|
1360 |
} |
c0bc7e5653fb
6885993: Named Thread: introduce print() and print_on(outputStream* st) methods
zgu
parents:
23855
diff
changeset
|
1361 |
|
c0bc7e5653fb
6885993: Named Thread: introduce print() and print_on(outputStream* st) methods
zgu
parents:
23855
diff
changeset
|
1362 |
|
1 | 1363 |
// ======= WatcherThread ======== |
1364 |
||
1365 |
// The watcher thread exists to simulate timer interrupts. It should |
|
1366 |
// be replaced by an abstraction over whatever native support for |
|
1367 |
// timer interrupts exists on the platform. |
|
1368 |
||
1369 |
WatcherThread* WatcherThread::_watcher_thread = NULL; |
|
14390
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1370 |
bool WatcherThread::_startable = false; |
6176
4d9030fe341f
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
5888
diff
changeset
|
1371 |
volatile bool WatcherThread::_should_terminate = false; |
1 | 1372 |
|
51548 | 1373 |
WatcherThread::WatcherThread() : NonJavaThread() { |
1 | 1374 |
assert(watcher_thread() == NULL, "we can only allocate one WatcherThread"); |
1375 |
if (os::create_thread(this, os::watcher_thread)) { |
|
1376 |
_watcher_thread = this; |
|
1377 |
||
1378 |
// Set the watcher thread to the highest OS priority which should not be |
|
1379 |
// used, unless a Java thread with priority java.lang.Thread.MAX_PRIORITY |
|
1380 |
// is created. The only normal thread using this priority is the reference |
|
1381 |
// handler thread, which runs for very short intervals only. |
|
1382 |
// If the VMThread's priority is not lower than the WatcherThread profiling |
|
1383 |
// will be inaccurate. |
|
1384 |
os::set_priority(this, MaxPriority); |
|
1385 |
if (!DisableStartThread) { |
|
1386 |
os::start_thread(this); |
|
1387 |
} |
|
1388 |
} |
|
1389 |
} |
|
1390 |
||
14390
bd0d881cf1c5
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14289
diff
changeset
|
1391 |
int WatcherThread::sleep() const { |
29321 | 1392 |
// The WatcherThread does not participate in the safepoint protocol |
1393 |
// for the PeriodicTask_lock because it is not a JavaThread. |
|
54645
05aaccf7d558
8222988: Use MonitorLocker rather than MutexLocker when wait/notify used
coleenp
parents:
54631
diff
changeset
|
1394 |
MonitorLocker ml(PeriodicTask_lock, Mutex::_no_safepoint_check_flag); |
14390
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
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diff
changeset
|
1395 |
|
29321 | 1396 |
if (_should_terminate) { |
1397 |
// check for termination before we do any housekeeping or wait |
|
1398 |
return 0; // we did not sleep. |
|
1399 |
} |
|
1400 |
||
14390
bd0d881cf1c5
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parents:
14289
diff
changeset
|
1401 |
// remaining will be zero if there are no tasks, |
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1402 |
// causing the WatcherThread to sleep until a task is |
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1403 |
// enrolled |
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
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parents:
14289
diff
changeset
|
1404 |
int remaining = PeriodicTask::time_to_wait(); |
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1405 |
int time_slept = 0; |
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1406 |
|
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
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parents:
14289
diff
changeset
|
1407 |
// we expect this to timeout - we only ever get unparked when |
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1408 |
// we should terminate or when a new task has been enrolled |
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1409 |
OSThreadWaitState osts(this->osthread(), false /* not Object.wait() */); |
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1410 |
|
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1411 |
jlong time_before_loop = os::javaTimeNanos(); |
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1412 |
|
29321 | 1413 |
while (true) { |
54645
05aaccf7d558
8222988: Use MonitorLocker rather than MutexLocker when wait/notify used
coleenp
parents:
54631
diff
changeset
|
1414 |
bool timedout = ml.wait(remaining); |
14390
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1415 |
jlong now = os::javaTimeNanos(); |
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1416 |
|
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
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parents:
14289
diff
changeset
|
1417 |
if (remaining == 0) { |
26683
a02753d5a0b2
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dcubed
parents:
25946
diff
changeset
|
1418 |
// if we didn't have any tasks we could have waited for a long time |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1419 |
// consider the time_slept zero and reset time_before_loop |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1420 |
time_slept = 0; |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1421 |
time_before_loop = now; |
14390
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
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diff
changeset
|
1422 |
} else { |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1423 |
// need to recalculate since we might have new tasks in _tasks |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1424 |
time_slept = (int) ((now - time_before_loop) / 1000000); |
14390
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1425 |
} |
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1426 |
|
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1427 |
// Change to task list or spurious wakeup of some kind |
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1428 |
if (timedout || _should_terminate) { |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1429 |
break; |
14390
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1430 |
} |
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1431 |
|
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1432 |
remaining = PeriodicTask::time_to_wait(); |
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1433 |
if (remaining == 0) { |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1434 |
// Last task was just disenrolled so loop around and wait until |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1435 |
// another task gets enrolled |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1436 |
continue; |
14390
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1437 |
} |
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1438 |
|
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1439 |
remaining -= time_slept; |
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1440 |
if (remaining <= 0) { |
14390
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1441 |
break; |
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
1442 |
} |
14390
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1443 |
} |
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1444 |
|
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1445 |
return time_slept; |
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1446 |
} |
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1447 |
|
1 | 1448 |
void WatcherThread::run() { |
1449 |
assert(this == watcher_thread(), "just checking"); |
|
1450 |
||
1451 |
this->set_active_handles(JNIHandleBlock::allocate_block()); |
|
29321 | 1452 |
while (true) { |
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
1453 |
assert(watcher_thread() == Thread::current(), "thread consistency check"); |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
1454 |
assert(watcher_thread() == this, "thread consistency check"); |
1 | 1455 |
|
1456 |
// Calculate how long it'll be until the next PeriodicTask work |
|
1457 |
// should be done, and sleep that amount of time. |
|
14390
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1458 |
int time_waited = sleep(); |
1 | 1459 |
|
46589 | 1460 |
if (VMError::is_error_reported()) { |
1 | 1461 |
// A fatal error has happened, the error handler(VMError::report_and_die) |
1462 |
// should abort JVM after creating an error log file. However in some |
|
46284
ad578adff5df
8166944: Hanging Error Reporting steps may lead to torn error logs.
stuefe
parents:
46273
diff
changeset
|
1463 |
// rare cases, the error handler itself might deadlock. Here periodically |
ad578adff5df
8166944: Hanging Error Reporting steps may lead to torn error logs.
stuefe
parents:
46273
diff
changeset
|
1464 |
// check for error reporting timeouts, and if it happens, just proceed to |
ad578adff5df
8166944: Hanging Error Reporting steps may lead to torn error logs.
stuefe
parents:
46273
diff
changeset
|
1465 |
// abort the VM. |
ad578adff5df
8166944: Hanging Error Reporting steps may lead to torn error logs.
stuefe
parents:
46273
diff
changeset
|
1466 |
|
1 | 1467 |
// This code is in WatcherThread because WatcherThread wakes up |
1468 |
// periodically so the fatal error handler doesn't need to do anything; |
|
1469 |
// also because the WatcherThread is less likely to crash than other |
|
1470 |
// threads. |
|
1471 |
||
1472 |
for (;;) { |
|
46284
ad578adff5df
8166944: Hanging Error Reporting steps may lead to torn error logs.
stuefe
parents:
46273
diff
changeset
|
1473 |
// Note: we use naked sleep in this loop because we want to avoid using |
ad578adff5df
8166944: Hanging Error Reporting steps may lead to torn error logs.
stuefe
parents:
46273
diff
changeset
|
1474 |
// any kind of VM infrastructure which may be broken at this point. |
ad578adff5df
8166944: Hanging Error Reporting steps may lead to torn error logs.
stuefe
parents:
46273
diff
changeset
|
1475 |
if (VMError::check_timeout()) { |
ad578adff5df
8166944: Hanging Error Reporting steps may lead to torn error logs.
stuefe
parents:
46273
diff
changeset
|
1476 |
// We hit error reporting timeout. Error reporting was interrupted and |
ad578adff5df
8166944: Hanging Error Reporting steps may lead to torn error logs.
stuefe
parents:
46273
diff
changeset
|
1477 |
// will be wrapping things up now (closing files etc). Give it some more |
ad578adff5df
8166944: Hanging Error Reporting steps may lead to torn error logs.
stuefe
parents:
46273
diff
changeset
|
1478 |
// time, then quit the VM. |
ad578adff5df
8166944: Hanging Error Reporting steps may lead to torn error logs.
stuefe
parents:
46273
diff
changeset
|
1479 |
os::naked_short_sleep(200); |
ad578adff5df
8166944: Hanging Error Reporting steps may lead to torn error logs.
stuefe
parents:
46273
diff
changeset
|
1480 |
// Print a message to stderr. |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1481 |
fdStream err(defaultStream::output_fd()); |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1482 |
err.print_raw_cr("# [ timer expired, abort... ]"); |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1483 |
// skip atexit/vm_exit/vm_abort hooks |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
1484 |
os::die(); |
1 | 1485 |
} |
1486 |
||
46284
ad578adff5df
8166944: Hanging Error Reporting steps may lead to torn error logs.
stuefe
parents:
46273
diff
changeset
|
1487 |
// Wait a second, then recheck for timeout. |
ad578adff5df
8166944: Hanging Error Reporting steps may lead to torn error logs.
stuefe
parents:
46273
diff
changeset
|
1488 |
os::naked_short_sleep(999); |
1 | 1489 |
} |
1490 |
} |
|
1491 |
||
29321 | 1492 |
if (_should_terminate) { |
1493 |
// check for termination before posting the next tick |
|
1494 |
break; |
|
1495 |
} |
|
1496 |
||
14390
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1497 |
PeriodicTask::real_time_tick(time_waited); |
1 | 1498 |
} |
1499 |
||
1500 |
// Signal that it is terminated |
|
1501 |
{ |
|
54623
1126f0607c70
8222811: Consolidate MutexLockerEx and MutexLocker
coleenp
parents:
54495
diff
changeset
|
1502 |
MutexLocker mu(Terminator_lock, Mutex::_no_safepoint_check_flag); |
1 | 1503 |
_watcher_thread = NULL; |
54329 | 1504 |
Terminator_lock->notify_all(); |
1 | 1505 |
} |
1506 |
} |
|
1507 |
||
1508 |
void WatcherThread::start() { |
|
14390
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1509 |
assert(PeriodicTask_lock->owned_by_self(), "PeriodicTask_lock required"); |
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1510 |
|
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1511 |
if (watcher_thread() == NULL && _startable) { |
1 | 1512 |
_should_terminate = false; |
1513 |
// Create the single instance of WatcherThread |
|
1514 |
new WatcherThread(); |
|
1515 |
} |
|
1516 |
} |
|
1517 |
||
14390
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1518 |
void WatcherThread::make_startable() { |
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1519 |
assert(PeriodicTask_lock->owned_by_self(), "PeriodicTask_lock required"); |
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1520 |
_startable = true; |
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1521 |
} |
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1522 |
|
1 | 1523 |
void WatcherThread::stop() { |
29321 | 1524 |
{ |
1525 |
// Follow normal safepoint aware lock enter protocol since the |
|
1526 |
// WatcherThread is stopped by another JavaThread. |
|
1527 |
MutexLocker ml(PeriodicTask_lock); |
|
1528 |
_should_terminate = true; |
|
1529 |
||
14390
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1530 |
WatcherThread* watcher = watcher_thread(); |
25373 | 1531 |
if (watcher != NULL) { |
29321 | 1532 |
// unpark the WatcherThread so it can see that it should terminate |
14390
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1533 |
watcher->unpark(); |
25373 | 1534 |
} |
14390
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1535 |
} |
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1536 |
|
54645
05aaccf7d558
8222988: Use MonitorLocker rather than MutexLocker when wait/notify used
coleenp
parents:
54631
diff
changeset
|
1537 |
MonitorLocker mu(Terminator_lock); |
6176
4d9030fe341f
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
5888
diff
changeset
|
1538 |
|
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
1539 |
while (watcher_thread() != NULL) { |
1 | 1540 |
// This wait should make safepoint checks, wait without a timeout, |
1541 |
// and wait as a suspend-equivalent condition. |
|
54645
05aaccf7d558
8222988: Use MonitorLocker rather than MutexLocker when wait/notify used
coleenp
parents:
54631
diff
changeset
|
1542 |
mu.wait(0, Mutex::_as_suspend_equivalent_flag); |
1 | 1543 |
} |
1544 |
} |
|
1545 |
||
14390
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1546 |
void WatcherThread::unpark() { |
29321 | 1547 |
assert(PeriodicTask_lock->owned_by_self(), "PeriodicTask_lock required"); |
14390
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1548 |
PeriodicTask_lock->notify(); |
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1549 |
} |
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
1550 |
|
1 | 1551 |
void WatcherThread::print_on(outputStream* st) const { |
1552 |
st->print("\"%s\" ", name()); |
|
1553 |
Thread::print_on(st); |
|
1554 |
st->cr(); |
|
1555 |
} |
|
1556 |
||
1557 |
// ======= JavaThread ======== |
|
1558 |
||
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
1559 |
#if INCLUDE_JVMCI |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
1560 |
|
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
1561 |
jlong* JavaThread::_jvmci_old_thread_counters; |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
1562 |
|
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
1563 |
bool jvmci_counters_include(JavaThread* thread) { |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
1564 |
return !JVMCICountersExcludeCompiler || !thread->is_Compiler_thread(); |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
1565 |
} |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
1566 |
|
54732 | 1567 |
void JavaThread::collect_counters(jlong* array, int length) { |
1568 |
assert(length == JVMCICounterSize, "wrong value"); |
|
1569 |
for (int i = 0; i < length; i++) { |
|
1570 |
array[i] = _jvmci_old_thread_counters[i]; |
|
1571 |
} |
|
1572 |
for (JavaThreadIteratorWithHandle jtiwh; JavaThread *tp = jtiwh.next(); ) { |
|
1573 |
if (jvmci_counters_include(tp)) { |
|
1574 |
for (int i = 0; i < length; i++) { |
|
1575 |
array[i] += tp->_jvmci_counters[i]; |
|
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
1576 |
} |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
1577 |
} |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
1578 |
} |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
1579 |
} |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
1580 |
|
55206 | 1581 |
// Attempt to enlarge the array for per thread counters. |
1582 |
jlong* resize_counters_array(jlong* old_counters, int current_size, int new_size) { |
|
1583 |
jlong* new_counters = NEW_C_HEAP_ARRAY(jlong, new_size, mtJVMCI); |
|
1584 |
if (old_counters == NULL) { |
|
1585 |
old_counters = new_counters; |
|
1586 |
memset(old_counters, 0, sizeof(jlong) * new_size); |
|
1587 |
} else { |
|
1588 |
for (int i = 0; i < MIN2((int) current_size, new_size); i++) { |
|
1589 |
new_counters[i] = old_counters[i]; |
|
1590 |
} |
|
1591 |
if (new_size > current_size) { |
|
1592 |
memset(new_counters + current_size, 0, sizeof(jlong) * (new_size - current_size)); |
|
1593 |
} |
|
1594 |
FREE_C_HEAP_ARRAY(jlong, old_counters); |
|
1595 |
} |
|
1596 |
return new_counters; |
|
1597 |
} |
|
1598 |
||
1599 |
// Attempt to enlarge the array for per thread counters. |
|
58282
03fce7b04b42
8230395: Code checks for NULL value returned from NEW_C_HEAP_ARRAY which can not happen
dholmes
parents:
58279
diff
changeset
|
1600 |
void JavaThread::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:
58279
diff
changeset
|
1601 |
_jvmci_counters = resize_counters_array(_jvmci_counters, current_size, new_size); |
55206 | 1602 |
} |
1603 |
||
1604 |
class VM_JVMCIResizeCounters : public VM_Operation { |
|
1605 |
private: |
|
1606 |
int _new_size; |
|
1607 |
||
1608 |
public: |
|
58282
03fce7b04b42
8230395: Code checks for NULL value returned from NEW_C_HEAP_ARRAY which can not happen
dholmes
parents:
58279
diff
changeset
|
1609 |
VM_JVMCIResizeCounters(int new_size) : _new_size(new_size) { } |
55206 | 1610 |
VMOp_Type type() const { return VMOp_JVMCIResizeCounters; } |
1611 |
bool allow_nested_vm_operations() const { return true; } |
|
1612 |
void doit() { |
|
1613 |
// Resize the old thread counters array |
|
1614 |
jlong* new_counters = resize_counters_array(JavaThread::_jvmci_old_thread_counters, JVMCICounterSize, _new_size); |
|
58282
03fce7b04b42
8230395: Code checks for NULL value returned from NEW_C_HEAP_ARRAY which can not happen
dholmes
parents:
58279
diff
changeset
|
1615 |
JavaThread::_jvmci_old_thread_counters = new_counters; |
55206 | 1616 |
|
1617 |
// Now resize each threads array |
|
1618 |
for (JavaThreadIteratorWithHandle jtiwh; JavaThread *tp = jtiwh.next(); ) { |
|
58282
03fce7b04b42
8230395: Code checks for NULL value returned from NEW_C_HEAP_ARRAY which can not happen
dholmes
parents:
58279
diff
changeset
|
1619 |
tp->resize_counters(JVMCICounterSize, _new_size); |
55206 | 1620 |
} |
58282
03fce7b04b42
8230395: Code checks for NULL value returned from NEW_C_HEAP_ARRAY which can not happen
dholmes
parents:
58279
diff
changeset
|
1621 |
JVMCICounterSize = _new_size; |
03fce7b04b42
8230395: Code checks for NULL value returned from NEW_C_HEAP_ARRAY which can not happen
dholmes
parents:
58279
diff
changeset
|
1622 |
} |
55206 | 1623 |
}; |
1624 |
||
58282
03fce7b04b42
8230395: Code checks for NULL value returned from NEW_C_HEAP_ARRAY which can not happen
dholmes
parents:
58279
diff
changeset
|
1625 |
void JavaThread::resize_all_jvmci_counters(int new_size) { |
55206 | 1626 |
VM_JVMCIResizeCounters op(new_size); |
1627 |
VMThread::execute(&op); |
|
1628 |
} |
|
1629 |
||
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
1630 |
#endif // INCLUDE_JVMCI |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
1631 |
|
1 | 1632 |
// A JavaThread is a normal Java thread |
1633 |
||
1634 |
void JavaThread::initialize() { |
|
1635 |
// Initialize fields |
|
1374
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
235
diff
changeset
|
1636 |
|
1 | 1637 |
set_saved_exception_pc(NULL); |
1638 |
set_threadObj(NULL); |
|
1639 |
_anchor.clear(); |
|
1640 |
set_entry_point(NULL); |
|
1641 |
set_jni_functions(jni_functions()); |
|
1642 |
set_callee_target(NULL); |
|
1643 |
set_vm_result(NULL); |
|
1644 |
set_vm_result_2(NULL); |
|
1645 |
set_vframe_array_head(NULL); |
|
1646 |
set_vframe_array_last(NULL); |
|
1647 |
set_deferred_locals(NULL); |
|
1648 |
set_deopt_mark(NULL); |
|
38133
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
37477
diff
changeset
|
1649 |
set_deopt_compiled_method(NULL); |
1 | 1650 |
set_monitor_chunks(NULL); |
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
1651 |
_on_thread_list = false; |
1 | 1652 |
set_thread_state(_thread_new); |
1653 |
_terminated = _not_terminated; |
|
1654 |
_array_for_gc = NULL; |
|
1655 |
_suspend_equivalent = false; |
|
1656 |
_in_deopt_handler = 0; |
|
1657 |
_doing_unsafe_access = false; |
|
1658 |
_stack_guard_state = stack_guard_unused; |
|
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
1659 |
#if INCLUDE_JVMCI |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
1660 |
_pending_monitorenter = false; |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
1661 |
_pending_deoptimization = -1; |
50858 | 1662 |
_pending_failed_speculation = 0; |
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
1663 |
_pending_transfer_to_interpreter = false; |
52033
d6aa9ea2405d
8208686: [AOT] JVMTI ResourceExhausted event repeated for same allocation
dnsimon
parents:
51998
diff
changeset
|
1664 |
_in_retryable_allocation = false; |
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
1665 |
_jvmci._alternate_call_target = NULL; |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
1666 |
assert(_jvmci._implicit_exception_pc == NULL, "must be"); |
55206 | 1667 |
_jvmci_counters = NULL; |
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
1668 |
if (JVMCICounterSize > 0) { |
55206 | 1669 |
resize_counters(0, (int) JVMCICounterSize); |
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
1670 |
} |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
1671 |
#endif // INCLUDE_JVMCI |
35071
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
1672 |
_reserved_stack_activation = NULL; // stack base not known yet |
24831
e4df2f64bb2e
8041623: Solaris Studio 12.4 C++ 5.13, CHECK_UNHANDLED_OOPS use of class oop's copy constructor definitions causing error level diagnostic.
lfoltan
parents:
24424
diff
changeset
|
1673 |
(void)const_cast<oop&>(_exception_oop = oop(NULL)); |
1 | 1674 |
_exception_pc = 0; |
1675 |
_exception_handler_pc = 0; |
|
7104 | 1676 |
_is_method_handle_return = 0; |
1 | 1677 |
_jvmti_thread_state= NULL; |
4761
bdb7375a1fee
6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents:
4637
diff
changeset
|
1678 |
_should_post_on_exceptions_flag = JNI_FALSE; |
1 | 1679 |
_interp_only_mode = 0; |
1680 |
_special_runtime_exit_condition = _no_async_condition; |
|
1681 |
_pending_async_exception = NULL; |
|
1682 |
_thread_stat = NULL; |
|
1683 |
_thread_stat = new ThreadStatistics(); |
|
1684 |
_jni_active_critical = 0; |
|
25058
4542f853c2ac
8043224: -Xcheck:jni improvements to exception checking and excessive local refs
dsimms
parents:
25057
diff
changeset
|
1685 |
_pending_jni_exception_check_fn = NULL; |
1 | 1686 |
_do_not_unlock_if_synchronized = false; |
1687 |
_cached_monitor_info = NULL; |
|
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
1688 |
_parker = Parker::Allocate(this); |
58095 | 1689 |
_SleepEvent = ParkEvent::Allocate(this); |
1 | 1690 |
// Setup safepoint state info for this thread |
1691 |
ThreadSafepointState::create(this); |
|
1692 |
||
1693 |
debug_only(_java_call_counter = 0); |
|
1694 |
||
1695 |
// JVMTI PopFrame support |
|
1696 |
_popframe_condition = popframe_inactive; |
|
1697 |
_popframe_preserved_args = NULL; |
|
1698 |
_popframe_preserved_args_size = 0; |
|
28039
bf5a8340bf8a
6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents:
27923
diff
changeset
|
1699 |
_frames_to_pop_failed_realloc = 0; |
1 | 1700 |
|
47881
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47799
diff
changeset
|
1701 |
if (SafepointMechanism::uses_thread_local_poll()) { |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47799
diff
changeset
|
1702 |
SafepointMechanism::initialize_header(this); |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47799
diff
changeset
|
1703 |
} |
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47799
diff
changeset
|
1704 |
|
53305
d193d58ae79d
8213397: Stack dump should show more clearly when a thread is blocked on a class initialization monitor
dholmes
parents:
53299
diff
changeset
|
1705 |
_class_to_be_initialized = NULL; |
d193d58ae79d
8213397: Stack dump should show more clearly when a thread is blocked on a class initialization monitor
dholmes
parents:
53299
diff
changeset
|
1706 |
|
1 | 1707 |
pd_initialize(); |
1708 |
} |
|
1709 |
||
10739 | 1710 |
JavaThread::JavaThread(bool is_attaching_via_jni) : |
49752
93d84f667d12
8201318: Introduce GCThreadLocalData to abstract GC-specific data belonging to a thread
pliden
parents:
49751
diff
changeset
|
1711 |
Thread() { |
1 | 1712 |
initialize(); |
10739 | 1713 |
if (is_attaching_via_jni) { |
1714 |
_jni_attach_state = _attaching_via_jni; |
|
1715 |
} else { |
|
1716 |
_jni_attach_state = _not_attaching_via_jni; |
|
1717 |
} |
|
15492
7d3684b41115
8001384: G1: assert(!is_null(v)) failed: narrow oop value can never be zero
johnc
parents:
15221
diff
changeset
|
1718 |
assert(deferred_card_mark().is_empty(), "Default MemRegion ctor"); |
1 | 1719 |
} |
1720 |
||
58196
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
1721 |
|
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
1722 |
// interrupt support |
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
1723 |
|
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
1724 |
void JavaThread::interrupt() { |
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
1725 |
debug_only(check_for_dangling_thread_pointer(this);) |
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
1726 |
|
58901
2700c409ff10
8229516: Thread.isInterrupted() always returns false after thread termination
dholmes
parents:
58842
diff
changeset
|
1727 |
// For Windows _interrupt_event |
2700c409ff10
8229516: Thread.isInterrupted() always returns false after thread termination
dholmes
parents:
58842
diff
changeset
|
1728 |
osthread()->set_interrupted(true); |
2700c409ff10
8229516: Thread.isInterrupted() always returns false after thread termination
dholmes
parents:
58842
diff
changeset
|
1729 |
|
2700c409ff10
8229516: Thread.isInterrupted() always returns false after thread termination
dholmes
parents:
58842
diff
changeset
|
1730 |
// For Thread.sleep |
2700c409ff10
8229516: Thread.isInterrupted() always returns false after thread termination
dholmes
parents:
58842
diff
changeset
|
1731 |
_SleepEvent->unpark(); |
2700c409ff10
8229516: Thread.isInterrupted() always returns false after thread termination
dholmes
parents:
58842
diff
changeset
|
1732 |
|
2700c409ff10
8229516: Thread.isInterrupted() always returns false after thread termination
dholmes
parents:
58842
diff
changeset
|
1733 |
// For JSR166 LockSupport.park |
58196
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
1734 |
parker()->unpark(); |
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
1735 |
|
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
1736 |
// For ObjectMonitor and JvmtiRawMonitor |
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
1737 |
_ParkEvent->unpark(); |
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
1738 |
} |
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
1739 |
|
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
1740 |
|
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
1741 |
bool JavaThread::is_interrupted(bool clear_interrupted) { |
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
1742 |
debug_only(check_for_dangling_thread_pointer(this);) |
58956
9a0a5e70eeb2
8233454: Test fails with assert(!is_init_completed(), "should only happen during init") after JDK-8229516
dholmes
parents:
58901
diff
changeset
|
1743 |
|
9a0a5e70eeb2
8233454: Test fails with assert(!is_init_completed(), "should only happen during init") after JDK-8229516
dholmes
parents:
58901
diff
changeset
|
1744 |
if (threadObj() == NULL) { |
9a0a5e70eeb2
8233454: Test fails with assert(!is_init_completed(), "should only happen during init") after JDK-8229516
dholmes
parents:
58901
diff
changeset
|
1745 |
// If there is no j.l.Thread then it is impossible to have |
9a0a5e70eeb2
8233454: Test fails with assert(!is_init_completed(), "should only happen during init") after JDK-8229516
dholmes
parents:
58901
diff
changeset
|
1746 |
// been interrupted. We can find NULL during VM initialization |
9a0a5e70eeb2
8233454: Test fails with assert(!is_init_completed(), "should only happen during init") after JDK-8229516
dholmes
parents:
58901
diff
changeset
|
1747 |
// or when a JNI thread is still in the process of attaching. |
9a0a5e70eeb2
8233454: Test fails with assert(!is_init_completed(), "should only happen during init") after JDK-8229516
dholmes
parents:
58901
diff
changeset
|
1748 |
// In such cases this must be the current thread. |
9a0a5e70eeb2
8233454: Test fails with assert(!is_init_completed(), "should only happen during init") after JDK-8229516
dholmes
parents:
58901
diff
changeset
|
1749 |
assert(this == Thread::current(), "invariant"); |
9a0a5e70eeb2
8233454: Test fails with assert(!is_init_completed(), "should only happen during init") after JDK-8229516
dholmes
parents:
58901
diff
changeset
|
1750 |
return false; |
9a0a5e70eeb2
8233454: Test fails with assert(!is_init_completed(), "should only happen during init") after JDK-8229516
dholmes
parents:
58901
diff
changeset
|
1751 |
} |
9a0a5e70eeb2
8233454: Test fails with assert(!is_init_completed(), "should only happen during init") after JDK-8229516
dholmes
parents:
58901
diff
changeset
|
1752 |
|
58901
2700c409ff10
8229516: Thread.isInterrupted() always returns false after thread termination
dholmes
parents:
58842
diff
changeset
|
1753 |
bool interrupted = java_lang_Thread::interrupted(threadObj()); |
58196
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
1754 |
|
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
1755 |
// NOTE that since there is no "lock" around the interrupt and |
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
1756 |
// is_interrupted operations, there is the possibility that the |
58901
2700c409ff10
8229516: Thread.isInterrupted() always returns false after thread termination
dholmes
parents:
58842
diff
changeset
|
1757 |
// interrupted flag will be "false" but that the |
58196
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
1758 |
// low-level events will be in the signaled state. This is |
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
1759 |
// intentional. The effect of this is that Object.wait() and |
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
1760 |
// LockSupport.park() will appear to have a spurious wakeup, which |
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
1761 |
// is allowed and not harmful, and the possibility is so rare that |
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
1762 |
// it is not worth the added complexity to add yet another lock. |
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
1763 |
// For the sleep event an explicit reset is performed on entry |
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
1764 |
// to JavaThread::sleep, so there is no early return. It has also been |
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
1765 |
// recommended not to put the interrupted flag into the "event" |
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
1766 |
// structure because it hides the issue. |
58901
2700c409ff10
8229516: Thread.isInterrupted() always returns false after thread termination
dholmes
parents:
58842
diff
changeset
|
1767 |
// Also, because there is no lock, we must only clear the interrupt |
2700c409ff10
8229516: Thread.isInterrupted() always returns false after thread termination
dholmes
parents:
58842
diff
changeset
|
1768 |
// state if we are going to report that we were interrupted; otherwise |
2700c409ff10
8229516: Thread.isInterrupted() always returns false after thread termination
dholmes
parents:
58842
diff
changeset
|
1769 |
// an interrupt that happens just after we read the field would be lost. |
58196
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
1770 |
if (interrupted && clear_interrupted) { |
58956
9a0a5e70eeb2
8233454: Test fails with assert(!is_init_completed(), "should only happen during init") after JDK-8229516
dholmes
parents:
58901
diff
changeset
|
1771 |
assert(this == Thread::current(), "only the current thread can clear"); |
58901
2700c409ff10
8229516: Thread.isInterrupted() always returns false after thread termination
dholmes
parents:
58842
diff
changeset
|
1772 |
java_lang_Thread::set_interrupted(threadObj(), false); |
58196
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
1773 |
osthread()->set_interrupted(false); |
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
1774 |
} |
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
1775 |
|
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
1776 |
return interrupted; |
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
1777 |
} |
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
1778 |
|
1 | 1779 |
bool JavaThread::reguard_stack(address cur_sp) { |
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1780 |
if (_stack_guard_state != stack_guard_yellow_reserved_disabled |
35071
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
1781 |
&& _stack_guard_state != stack_guard_reserved_disabled) { |
1 | 1782 |
return true; // Stack already guarded or guard pages not needed. |
1783 |
} |
|
1784 |
||
1785 |
if (register_stack_overflow()) { |
|
1786 |
// For those architectures which have separate register and |
|
1787 |
// memory stacks, we must check the register stack to see if |
|
1788 |
// it has overflowed. |
|
1789 |
return false; |
|
1790 |
} |
|
1791 |
||
1792 |
// Java code never executes within the yellow zone: the latter is only |
|
1793 |
// there to provoke an exception during stack banging. If java code |
|
1794 |
// is executing there, either StackShadowPages should be larger, or |
|
1795 |
// some exception code in c1, c2 or the interpreter isn't unwinding |
|
1796 |
// when it should. |
|
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1797 |
guarantee(cur_sp > stack_reserved_zone_base(), |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1798 |
"not enough space to reguard - increase StackShadowPages"); |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1799 |
if (_stack_guard_state == stack_guard_yellow_reserved_disabled) { |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
1800 |
enable_stack_yellow_reserved_zone(); |
35071
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
1801 |
if (reserved_stack_activation() != stack_base()) { |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
1802 |
set_reserved_stack_activation(stack_base()); |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
1803 |
} |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
1804 |
} else if (_stack_guard_state == stack_guard_reserved_disabled) { |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
1805 |
set_reserved_stack_activation(stack_base()); |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
1806 |
enable_stack_reserved_zone(); |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
1807 |
} |
1 | 1808 |
return true; |
1809 |
} |
|
1810 |
||
1811 |
bool JavaThread::reguard_stack(void) { |
|
1812 |
return reguard_stack(os::current_stack_pointer()); |
|
1813 |
} |
|
1814 |
||
1815 |
||
1816 |
void JavaThread::block_if_vm_exited() { |
|
1817 |
if (_terminated == _vm_exited) { |
|
1818 |
// _vm_exited is set at safepoint, and Threads_lock is never released |
|
58279
448fe2bfd505
8229778: TestJstatdDefaults.java failed due to "fatal error: LEAF method calling lock?"
rehn
parents:
58243
diff
changeset
|
1819 |
// we will block here forever. |
448fe2bfd505
8229778: TestJstatdDefaults.java failed due to "fatal error: LEAF method calling lock?"
rehn
parents:
58243
diff
changeset
|
1820 |
// Here we can be doing a jump from a safe state to an unsafe state without |
448fe2bfd505
8229778: TestJstatdDefaults.java failed due to "fatal error: LEAF method calling lock?"
rehn
parents:
58243
diff
changeset
|
1821 |
// proper transition, but it happens after the final safepoint has begun. |
448fe2bfd505
8229778: TestJstatdDefaults.java failed due to "fatal error: LEAF method calling lock?"
rehn
parents:
58243
diff
changeset
|
1822 |
set_thread_state(_thread_in_vm); |
57699
4aea554692aa
8226228: Make Threads_lock an always safepoint checked lock.
rehn
parents:
57603
diff
changeset
|
1823 |
Threads_lock->lock(); |
1 | 1824 |
ShouldNotReachHere(); |
1825 |
} |
|
1826 |
} |
|
1827 |
||
1828 |
||
1829 |
// Remove this ifdef when C1 is ported to the compiler interface. |
|
1830 |
static void compiler_thread_entry(JavaThread* thread, TRAPS); |
|
27420
04e6f914cce1
8046809: vm/mlvm/meth/stress/compiler/deoptimize CodeCache is full.
anoll
parents:
27164
diff
changeset
|
1831 |
static void sweeper_thread_entry(JavaThread* thread, TRAPS); |
1 | 1832 |
|
1374
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
235
diff
changeset
|
1833 |
JavaThread::JavaThread(ThreadFunction entry_point, size_t stack_sz) : |
49752
93d84f667d12
8201318: Introduce GCThreadLocalData to abstract GC-specific data belonging to a thread
pliden
parents:
49751
diff
changeset
|
1834 |
Thread() { |
1 | 1835 |
initialize(); |
10739 | 1836 |
_jni_attach_state = _not_attaching_via_jni; |
1 | 1837 |
set_entry_point(entry_point); |
1838 |
// Create the native thread itself. |
|
1839 |
// %note runtime_23 |
|
1840 |
os::ThreadType thr_type = os::java_thread; |
|
1841 |
thr_type = entry_point == &compiler_thread_entry ? os::compiler_thread : |
|
1842 |
os::java_thread; |
|
1843 |
os::create_thread(this, thr_type, stack_sz); |
|
1844 |
// The _osthread may be NULL here because we ran out of memory (too many threads active). |
|
1845 |
// We need to throw and OutOfMemoryError - however we cannot do this here because the caller |
|
1846 |
// may hold a lock and all locks must be unlocked before throwing the exception (throwing |
|
1847 |
// the exception consists of creating the exception object & initializing it, initialization |
|
1848 |
// will leave the VM via a JavaCall and then all locks must be unlocked). |
|
1849 |
// |
|
1850 |
// The thread is still suspended when we reach here. Thread must be explicit started |
|
1851 |
// by creator! Furthermore, the thread must also explicitly be added to the Threads list |
|
1852 |
// by calling Threads:add. The reason why this is not done here, is because the thread |
|
1853 |
// object must be fully initialized (take a look at JVM_Start) |
|
1854 |
} |
|
1855 |
||
1856 |
JavaThread::~JavaThread() { |
|
1857 |
||
1858 |
// JSR166 -- return the parker to the free list |
|
1859 |
Parker::Release(_parker); |
|
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
1860 |
_parker = NULL; |
1 | 1861 |
|
58095 | 1862 |
// Return the sleep event to the free list |
1863 |
ParkEvent::Release(_SleepEvent); |
|
1864 |
_SleepEvent = NULL; |
|
1865 |
||
1 | 1866 |
// Free any remaining previous UnrollBlock |
1867 |
vframeArray* old_array = vframe_array_last(); |
|
1868 |
||
1869 |
if (old_array != NULL) { |
|
1870 |
Deoptimization::UnrollBlock* old_info = old_array->unroll_block(); |
|
1871 |
old_array->set_unroll_block(NULL); |
|
1872 |
delete old_info; |
|
1873 |
delete old_array; |
|
1874 |
} |
|
1875 |
||
1876 |
GrowableArray<jvmtiDeferredLocalVariableSet*>* deferred = deferred_locals(); |
|
1877 |
if (deferred != NULL) { |
|
1878 |
// This can only happen if thread is destroyed before deoptimization occurs. |
|
1879 |
assert(deferred->length() != 0, "empty array!"); |
|
1880 |
do { |
|
1881 |
jvmtiDeferredLocalVariableSet* dlv = deferred->at(0); |
|
1882 |
deferred->remove_at(0); |
|
1883 |
// individual jvmtiDeferredLocalVariableSet are CHeapObj's |
|
1884 |
delete dlv; |
|
1885 |
} while (deferred->length() != 0); |
|
1886 |
delete deferred; |
|
1887 |
} |
|
1888 |
||
1889 |
// All Java related clean up happens in exit |
|
1890 |
ThreadSafepointState::destroy(this); |
|
1891 |
if (_thread_stat != NULL) delete _thread_stat; |
|
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
1892 |
|
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
1893 |
#if INCLUDE_JVMCI |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
1894 |
if (JVMCICounterSize > 0) { |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
1895 |
if (jvmci_counters_include(this)) { |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
1896 |
for (int i = 0; i < JVMCICounterSize; i++) { |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
1897 |
_jvmci_old_thread_counters[i] += _jvmci_counters[i]; |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
1898 |
} |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
1899 |
} |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
1900 |
FREE_C_HEAP_ARRAY(jlong, _jvmci_counters); |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
1901 |
} |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
1902 |
#endif // INCLUDE_JVMCI |
1 | 1903 |
} |
1904 |
||
1905 |
||
53103
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1906 |
// First JavaThread specific code executed by a new Java thread. |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1907 |
void JavaThread::pre_run() { |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1908 |
// empty - see comments in run() |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1909 |
} |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1910 |
|
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1911 |
// The main routine called by a new Java thread. This isn't overridden |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1912 |
// by subclasses, instead different subclasses define a different "entry_point" |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1913 |
// which defines the actual logic for that kind of thread. |
1 | 1914 |
void JavaThread::run() { |
1915 |
// initialize thread-local alloc buffer related fields |
|
1916 |
this->initialize_tlab(); |
|
1917 |
||
53103
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1918 |
// Used to test validity of stack trace backs. |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1919 |
// This can't be moved into pre_run() else we invalidate |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1920 |
// the requirement that thread_main_inner is lower on |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1921 |
// the stack. Consequently all the initialization logic |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1922 |
// stays here in run() rather than pre_run(). |
1 | 1923 |
this->record_base_of_stack_pointer(); |
1924 |
||
1925 |
this->create_stack_guard_pages(); |
|
1926 |
||
6176
4d9030fe341f
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
5888
diff
changeset
|
1927 |
this->cache_global_variables(); |
4d9030fe341f
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
5888
diff
changeset
|
1928 |
|
53103
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1929 |
// Thread is now sufficiently initialized to be handled by the safepoint code as being |
1 | 1930 |
// in the VM. Change thread state from _thread_new to _thread_in_vm |
54495
941db9c0b5b5
8222231: Clean up interfaceSupport.inline.hpp duplicated code
coleenp
parents:
54439
diff
changeset
|
1931 |
ThreadStateTransition::transition(this, _thread_new, _thread_in_vm); |
54323 | 1932 |
// Before a thread is on the threads list it is always safe, so after leaving the |
1933 |
// _thread_new we should emit a instruction barrier. The distance to modified code |
|
1934 |
// from here is probably far enough, but this is consistent and safe. |
|
1935 |
OrderAccess::cross_modify_fence(); |
|
1 | 1936 |
|
1937 |
assert(JavaThread::current() == this, "sanity check"); |
|
1938 |
assert(!Thread::current()->owns_locks(), "sanity check"); |
|
1939 |
||
1940 |
DTRACE_THREAD_PROBE(start, this); |
|
1941 |
||
1942 |
// This operation might block. We call that after all safepoint checks for a new thread has |
|
1943 |
// been completed. |
|
1944 |
this->set_active_handles(JNIHandleBlock::allocate_block()); |
|
1945 |
||
1946 |
if (JvmtiExport::should_post_thread_life()) { |
|
1947 |
JvmtiExport::post_thread_start(this); |
|
52569
1a534c7926cc
8210024: JFR calls virtual is_Java_thread from ~Thread()
mgronlun
parents:
52431
diff
changeset
|
1948 |
|
18025 | 1949 |
} |
11480
1bf714e8adb4
7115199: Add event tracing hooks and Java Flight Recorder infrastructure
phh
parents:
11174
diff
changeset
|
1950 |
|
1 | 1951 |
// We call another function to do the rest so we are sure that the stack addresses used |
53103
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1952 |
// from there will be lower than the stack base just computed. |
1 | 1953 |
thread_main_inner(); |
1954 |
} |
|
1955 |
||
1956 |
void JavaThread::thread_main_inner() { |
|
1957 |
assert(JavaThread::current() == this, "sanity check"); |
|
1958 |
assert(this->threadObj() != NULL, "just checking"); |
|
1959 |
||
8061
07585870d15f
6566340: Restore use of stillborn flag to signify a thread that was stopped before it started
dholmes
parents:
7900
diff
changeset
|
1960 |
// Execute thread entry point unless this thread has a pending exception |
07585870d15f
6566340: Restore use of stillborn flag to signify a thread that was stopped before it started
dholmes
parents:
7900
diff
changeset
|
1961 |
// or has been stopped before starting. |
1 | 1962 |
// Note: Due to JVM_StopThread we can have pending exceptions already! |
8061
07585870d15f
6566340: Restore use of stillborn flag to signify a thread that was stopped before it started
dholmes
parents:
7900
diff
changeset
|
1963 |
if (!this->has_pending_exception() && |
07585870d15f
6566340: Restore use of stillborn flag to signify a thread that was stopped before it started
dholmes
parents:
7900
diff
changeset
|
1964 |
!java_lang_Thread::is_stillborn(this->threadObj())) { |
10739 | 1965 |
{ |
1966 |
ResourceMark rm(this); |
|
1967 |
this->set_native_thread_name(this->get_thread_name()); |
|
1968 |
} |
|
1 | 1969 |
HandleMark hm(this); |
1970 |
this->entry_point()(this, this); |
|
1971 |
} |
|
1972 |
||
1973 |
DTRACE_THREAD_PROBE(stop, this); |
|
1974 |
||
53103
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1975 |
// Cleanup is handled in post_run() |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1976 |
} |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1977 |
|
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1978 |
// Shared teardown for all JavaThreads |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1979 |
void JavaThread::post_run() { |
1 | 1980 |
this->exit(false); |
53103
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1981 |
// Defer deletion to here to ensure 'this' is still referenceable in call_run |
67e3a8b3449c
8214097: Rework thread initialization and teardown logic
dholmes
parents:
53084
diff
changeset
|
1982 |
// for any shared tear-down. |
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
1983 |
this->smr_delete(); |
1 | 1984 |
} |
1985 |
||
1986 |
static void ensure_join(JavaThread* thread) { |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
1987 |
// We do not need to grab the Threads_lock, since we are operating on ourself. |
1 | 1988 |
Handle threadObj(thread, thread->threadObj()); |
1989 |
assert(threadObj.not_null(), "java thread object must exist"); |
|
1990 |
ObjectLocker lock(threadObj, thread); |
|
1991 |
// Ignore pending exception (ThreadDeath), since we are exiting anyway |
|
1992 |
thread->clear_pending_exception(); |
|
1993 |
// Thread is exiting. So set thread_status field in java.lang.Thread class to TERMINATED. |
|
1994 |
java_lang_Thread::set_thread_status(threadObj(), java_lang_Thread::TERMINATED); |
|
8061
07585870d15f
6566340: Restore use of stillborn flag to signify a thread that was stopped before it started
dholmes
parents:
7900
diff
changeset
|
1995 |
// Clear the native thread instance - this makes isAlive return false and allows the join() |
07585870d15f
6566340: Restore use of stillborn flag to signify a thread that was stopped before it started
dholmes
parents:
7900
diff
changeset
|
1996 |
// to complete once we've done the notify_all below |
1 | 1997 |
java_lang_Thread::set_thread(threadObj(), NULL); |
1998 |
lock.notify_all(thread); |
|
1999 |
// Ignore pending exception (ThreadDeath), since we are exiting anyway |
|
2000 |
thread->clear_pending_exception(); |
|
2001 |
} |
|
2002 |
||
52297
99962c340e73
8021335: Missing synchronization when reading counters for live threads and peak thread count
dlong
parents:
52148
diff
changeset
|
2003 |
static bool is_daemon(oop threadObj) { |
99962c340e73
8021335: Missing synchronization when reading counters for live threads and peak thread count
dlong
parents:
52148
diff
changeset
|
2004 |
return (threadObj != NULL && java_lang_Thread::is_daemon(threadObj)); |
99962c340e73
8021335: Missing synchronization when reading counters for live threads and peak thread count
dlong
parents:
52148
diff
changeset
|
2005 |
} |
1560
1b328492b7f8
6770608: G1: Mutator thread can flush barrier and satb queues during safepoint
iveresov
parents:
1415
diff
changeset
|
2006 |
|
1 | 2007 |
// For any new cleanup additions, please check to see if they need to be applied to |
2008 |
// cleanup_failed_attach_current_thread as well. |
|
2009 |
void JavaThread::exit(bool destroy_vm, ExitType exit_type) { |
|
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
2010 |
assert(this == JavaThread::current(), "thread consistency check"); |
1 | 2011 |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2012 |
elapsedTimer _timer_exit_phase1; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2013 |
elapsedTimer _timer_exit_phase2; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2014 |
elapsedTimer _timer_exit_phase3; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2015 |
elapsedTimer _timer_exit_phase4; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2016 |
|
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2017 |
if (log_is_enabled(Debug, os, thread, timer)) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2018 |
_timer_exit_phase1.start(); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2019 |
} |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2020 |
|
1 | 2021 |
HandleMark hm(this); |
2022 |
Handle uncaught_exception(this, this->pending_exception()); |
|
2023 |
this->clear_pending_exception(); |
|
2024 |
Handle threadObj(this, this->threadObj()); |
|
2025 |
assert(threadObj.not_null(), "Java thread object should be created"); |
|
2026 |
||
2027 |
// FIXIT: This code should be moved into else part, when reliable 1.2/1.3 check is in place |
|
2028 |
{ |
|
2029 |
EXCEPTION_MARK; |
|
2030 |
||
2031 |
CLEAR_PENDING_EXCEPTION; |
|
2032 |
} |
|
25057 | 2033 |
if (!destroy_vm) { |
1 | 2034 |
if (uncaught_exception.not_null()) { |
25057 | 2035 |
EXCEPTION_MARK; |
2036 |
// Call method Thread.dispatchUncaughtException(). |
|
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
46284
diff
changeset
|
2037 |
Klass* thread_klass = SystemDictionary::Thread_klass(); |
25057 | 2038 |
JavaValue result(T_VOID); |
2039 |
JavaCalls::call_virtual(&result, |
|
2040 |
threadObj, thread_klass, |
|
2041 |
vmSymbols::dispatchUncaughtException_name(), |
|
2042 |
vmSymbols::throwable_void_signature(), |
|
2043 |
uncaught_exception, |
|
2044 |
THREAD); |
|
2045 |
if (HAS_PENDING_EXCEPTION) { |
|
2046 |
ResourceMark rm(this); |
|
2047 |
jio_fprintf(defaultStream::error_stream(), |
|
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
2048 |
"\nException: %s thrown from the UncaughtExceptionHandler" |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
2049 |
" in thread \"%s\"\n", |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
2050 |
pending_exception()->klass()->external_name(), |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
2051 |
get_thread_name()); |
1 | 2052 |
CLEAR_PENDING_EXCEPTION; |
2053 |
} |
|
2054 |
} |
|
52569
1a534c7926cc
8210024: JFR calls virtual is_Java_thread from ~Thread()
mgronlun
parents:
52431
diff
changeset
|
2055 |
JFR_ONLY(Jfr::on_java_thread_dismantle(this);) |
11480
1bf714e8adb4
7115199: Add event tracing hooks and Java Flight Recorder infrastructure
phh
parents:
11174
diff
changeset
|
2056 |
|
1 | 2057 |
// Call Thread.exit(). We try 3 times in case we got another Thread.stop during |
2058 |
// the execution of the method. If that is not enough, then we don't really care. Thread.stop |
|
2059 |
// is deprecated anyhow. |
|
20707
b3b658c6d1f8
8023014: CodeSweeperSweepNoFlushTest.java fails with HS crash
anoll
parents:
20282
diff
changeset
|
2060 |
if (!is_Compiler_thread()) { |
b3b658c6d1f8
8023014: CodeSweeperSweepNoFlushTest.java fails with HS crash
anoll
parents:
20282
diff
changeset
|
2061 |
int count = 3; |
1 | 2062 |
while (java_lang_Thread::threadGroup(threadObj()) != NULL && (count-- > 0)) { |
2063 |
EXCEPTION_MARK; |
|
2064 |
JavaValue result(T_VOID); |
|
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
46284
diff
changeset
|
2065 |
Klass* thread_klass = SystemDictionary::Thread_klass(); |
1 | 2066 |
JavaCalls::call_virtual(&result, |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
2067 |
threadObj, thread_klass, |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
2068 |
vmSymbols::exit_method_name(), |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
2069 |
vmSymbols::void_method_signature(), |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
2070 |
THREAD); |
1 | 2071 |
CLEAR_PENDING_EXCEPTION; |
2072 |
} |
|
2073 |
} |
|
2074 |
// notify JVMTI |
|
2075 |
if (JvmtiExport::should_post_thread_life()) { |
|
2076 |
JvmtiExport::post_thread_end(this); |
|
2077 |
} |
|
2078 |
||
2079 |
// We have notified the agents that we are exiting, before we go on, |
|
2080 |
// we must check for a pending external suspend request and honor it |
|
2081 |
// in order to not surprise the thread that made the suspend request. |
|
2082 |
while (true) { |
|
2083 |
{ |
|
54623
1126f0607c70
8222811: Consolidate MutexLockerEx and MutexLocker
coleenp
parents:
54495
diff
changeset
|
2084 |
MutexLocker ml(SR_lock(), Mutex::_no_safepoint_check_flag); |
1 | 2085 |
if (!is_external_suspend()) { |
2086 |
set_terminated(_thread_exiting); |
|
52297
99962c340e73
8021335: Missing synchronization when reading counters for live threads and peak thread count
dlong
parents:
52148
diff
changeset
|
2087 |
ThreadService::current_thread_exiting(this, is_daemon(threadObj())); |
1 | 2088 |
break; |
2089 |
} |
|
2090 |
// Implied else: |
|
2091 |
// Things get a little tricky here. We have a pending external |
|
2092 |
// suspend request, but we are holding the SR_lock so we |
|
2093 |
// can't just self-suspend. So we temporarily drop the lock |
|
2094 |
// and then self-suspend. |
|
2095 |
} |
|
2096 |
||
2097 |
ThreadBlockInVM tbivm(this); |
|
2098 |
java_suspend_self(); |
|
2099 |
||
2100 |
// We're done with this suspend request, but we have to loop around |
|
2101 |
// and check again. Eventually we will get SR_lock without a pending |
|
2102 |
// external suspend request and will be able to mark ourselves as |
|
2103 |
// exiting. |
|
2104 |
} |
|
2105 |
// no more external suspends are allowed at this point |
|
2106 |
} else { |
|
52297
99962c340e73
8021335: Missing synchronization when reading counters for live threads and peak thread count
dlong
parents:
52148
diff
changeset
|
2107 |
assert(!is_terminated() && !is_exiting(), "must not be exiting"); |
1 | 2108 |
// before_exit() has already posted JVMTI THREAD_END events |
2109 |
} |
|
2110 |
||
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2111 |
if (log_is_enabled(Debug, os, thread, timer)) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2112 |
_timer_exit_phase1.stop(); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2113 |
_timer_exit_phase2.start(); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2114 |
} |
54416
b788c494aa46
8218483: Crash in "assert(_daemon_threads_count->get_value() > daemon_count) failed: thread count mismatch 5 : 5"
dholmes
parents:
54385
diff
changeset
|
2115 |
|
b788c494aa46
8218483: Crash in "assert(_daemon_threads_count->get_value() > daemon_count) failed: thread count mismatch 5 : 5"
dholmes
parents:
54385
diff
changeset
|
2116 |
// Capture daemon status before the thread is marked as terminated. |
b788c494aa46
8218483: Crash in "assert(_daemon_threads_count->get_value() > daemon_count) failed: thread count mismatch 5 : 5"
dholmes
parents:
54385
diff
changeset
|
2117 |
bool daemon = is_daemon(threadObj()); |
b788c494aa46
8218483: Crash in "assert(_daemon_threads_count->get_value() > daemon_count) failed: thread count mismatch 5 : 5"
dholmes
parents:
54385
diff
changeset
|
2118 |
|
1 | 2119 |
// Notify waiters on thread object. This has to be done after exit() is called |
2120 |
// on the thread (if the thread is the last thread in a daemon ThreadGroup the |
|
2121 |
// group should have the destroyed bit set before waiters are notified). |
|
2122 |
ensure_join(this); |
|
2123 |
assert(!this->has_pending_exception(), "ensure_join should have cleared"); |
|
2124 |
||
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2125 |
if (log_is_enabled(Debug, os, thread, timer)) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2126 |
_timer_exit_phase2.stop(); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2127 |
_timer_exit_phase3.start(); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2128 |
} |
1 | 2129 |
// 6282335 JNI DetachCurrentThread spec states that all Java monitors |
31782
b23b74f8ae8d
8130448: thread dump improvements, comment additions, new diagnostics inspired by 8077392
dcubed
parents:
31620
diff
changeset
|
2130 |
// held by this thread must be released. The spec does not distinguish |
b23b74f8ae8d
8130448: thread dump improvements, comment additions, new diagnostics inspired by 8077392
dcubed
parents:
31620
diff
changeset
|
2131 |
// between JNI-acquired and regular Java monitors. We can only see |
b23b74f8ae8d
8130448: thread dump improvements, comment additions, new diagnostics inspired by 8077392
dcubed
parents:
31620
diff
changeset
|
2132 |
// regular Java monitors here if monitor enter-exit matching is broken. |
b23b74f8ae8d
8130448: thread dump improvements, comment additions, new diagnostics inspired by 8077392
dcubed
parents:
31620
diff
changeset
|
2133 |
// |
b23b74f8ae8d
8130448: thread dump improvements, comment additions, new diagnostics inspired by 8077392
dcubed
parents:
31620
diff
changeset
|
2134 |
// ensure_join() ignores IllegalThreadStateExceptions, and so does |
b23b74f8ae8d
8130448: thread dump improvements, comment additions, new diagnostics inspired by 8077392
dcubed
parents:
31620
diff
changeset
|
2135 |
// ObjectSynchronizer::release_monitors_owned_by_thread(). |
51860 | 2136 |
if (exit_type == jni_detach) { |
31782
b23b74f8ae8d
8130448: thread dump improvements, comment additions, new diagnostics inspired by 8077392
dcubed
parents:
31620
diff
changeset
|
2137 |
// Sanity check even though JNI DetachCurrentThread() would have |
b23b74f8ae8d
8130448: thread dump improvements, comment additions, new diagnostics inspired by 8077392
dcubed
parents:
31620
diff
changeset
|
2138 |
// returned JNI_ERR if there was a Java frame. JavaThread exit |
b23b74f8ae8d
8130448: thread dump improvements, comment additions, new diagnostics inspired by 8077392
dcubed
parents:
31620
diff
changeset
|
2139 |
// should be done executing Java code by the time we get here. |
b23b74f8ae8d
8130448: thread dump improvements, comment additions, new diagnostics inspired by 8077392
dcubed
parents:
31620
diff
changeset
|
2140 |
assert(!this->has_last_Java_frame(), |
b23b74f8ae8d
8130448: thread dump improvements, comment additions, new diagnostics inspired by 8077392
dcubed
parents:
31620
diff
changeset
|
2141 |
"should not have a Java frame when detaching or exiting"); |
1 | 2142 |
ObjectSynchronizer::release_monitors_owned_by_thread(this); |
2143 |
assert(!this->has_pending_exception(), "release_monitors should have cleared"); |
|
2144 |
} |
|
2145 |
||
2146 |
// These things needs to be done while we are still a Java Thread. Make sure that thread |
|
2147 |
// is in a consistent state, in case GC happens |
|
52569
1a534c7926cc
8210024: JFR calls virtual is_Java_thread from ~Thread()
mgronlun
parents:
52431
diff
changeset
|
2148 |
JFR_ONLY(Jfr::on_thread_exit(this);) |
1 | 2149 |
|
2150 |
if (active_handles() != NULL) { |
|
2151 |
JNIHandleBlock* block = active_handles(); |
|
2152 |
set_active_handles(NULL); |
|
2153 |
JNIHandleBlock::release_block(block); |
|
2154 |
} |
|
2155 |
||
2156 |
if (free_handle_block() != NULL) { |
|
2157 |
JNIHandleBlock* block = free_handle_block(); |
|
2158 |
set_free_handle_block(NULL); |
|
2159 |
JNIHandleBlock::release_block(block); |
|
2160 |
} |
|
2161 |
||
2162 |
// These have to be removed while this is still a valid thread. |
|
2163 |
remove_stack_guard_pages(); |
|
2164 |
||
2165 |
if (UseTLAB) { |
|
51817
46eac084082d
8210857: Allow retiring TLABs and collecting statistics in parallel
pliden
parents:
51702
diff
changeset
|
2166 |
tlab().retire(); |
1 | 2167 |
} |
2168 |
||
7897
201a8b00ec91
6814943: getcpool001 catches more than one JvmtiThreadState problem
kamg
parents:
7724
diff
changeset
|
2169 |
if (JvmtiEnv::environments_might_exist()) { |
222
3d1795325749
6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents:
1
diff
changeset
|
2170 |
JvmtiExport::cleanup_thread(this); |
3d1795325749
6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents:
1
diff
changeset
|
2171 |
} |
3d1795325749
6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents:
1
diff
changeset
|
2172 |
|
48961
120b61d50f85
8195103: Refactor out card table from CardTableModRefBS to flatten the BarrierSet hierarchy
eosterlund
parents:
48823
diff
changeset
|
2173 |
// We must flush any deferred card marks and other various GC barrier |
120b61d50f85
8195103: Refactor out card table from CardTableModRefBS to flatten the BarrierSet hierarchy
eosterlund
parents:
48823
diff
changeset
|
2174 |
// related buffers (e.g. G1 SATB buffer and G1 dirty card queue buffer) |
120b61d50f85
8195103: Refactor out card table from CardTableModRefBS to flatten the BarrierSet hierarchy
eosterlund
parents:
48823
diff
changeset
|
2175 |
// before removing a thread from the list of active threads. |
49007
82d9d5744e5f
8197994: Move JavaThread::initialize_queues() logic to G1SATBCardTableLoggingModRefBS
pliden
parents:
49006
diff
changeset
|
2176 |
BarrierSet::barrier_set()->on_thread_detach(this); |
1560
1b328492b7f8
6770608: G1: Mutator thread can flush barrier and satb queues during safepoint
iveresov
parents:
1415
diff
changeset
|
2177 |
|
36379
0c596dc28ed7
8150619: Improve thread based logging introduced with 8149036
stuefe
parents:
36355
diff
changeset
|
2178 |
log_info(os, thread)("JavaThread %s (tid: " UINTX_FORMAT ").", |
0c596dc28ed7
8150619: Improve thread based logging introduced with 8149036
stuefe
parents:
36355
diff
changeset
|
2179 |
exit_type == JavaThread::normal_exit ? "exiting" : "detaching", |
0c596dc28ed7
8150619: Improve thread based logging introduced with 8149036
stuefe
parents:
36355
diff
changeset
|
2180 |
os::current_thread_id()); |
0c596dc28ed7
8150619: Improve thread based logging introduced with 8149036
stuefe
parents:
36355
diff
changeset
|
2181 |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2182 |
if (log_is_enabled(Debug, os, thread, timer)) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2183 |
_timer_exit_phase3.stop(); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2184 |
_timer_exit_phase4.start(); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2185 |
} |
1 | 2186 |
// Remove from list of active threads list, and notify VM thread if we are the last non-daemon thread |
54416
b788c494aa46
8218483: Crash in "assert(_daemon_threads_count->get_value() > daemon_count) failed: thread count mismatch 5 : 5"
dholmes
parents:
54385
diff
changeset
|
2187 |
Threads::remove(this, daemon); |
47881
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47799
diff
changeset
|
2188 |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2189 |
if (log_is_enabled(Debug, os, thread, timer)) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2190 |
_timer_exit_phase4.stop(); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2191 |
ResourceMark rm(this); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2192 |
log_debug(os, thread, timer)("name='%s'" |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2193 |
", exit-phase1=" JLONG_FORMAT |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2194 |
", exit-phase2=" JLONG_FORMAT |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2195 |
", exit-phase3=" JLONG_FORMAT |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2196 |
", exit-phase4=" JLONG_FORMAT, |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2197 |
get_thread_name(), |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2198 |
_timer_exit_phase1.milliseconds(), |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2199 |
_timer_exit_phase2.milliseconds(), |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2200 |
_timer_exit_phase3.milliseconds(), |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2201 |
_timer_exit_phase4.milliseconds()); |
47881
0ce0ac68ace7
8189941: Implementation JEP 312: Thread-local handshake
rehn
parents:
47799
diff
changeset
|
2202 |
} |
1 | 2203 |
} |
2204 |
||
54416
b788c494aa46
8218483: Crash in "assert(_daemon_threads_count->get_value() > daemon_count) failed: thread count mismatch 5 : 5"
dholmes
parents:
54385
diff
changeset
|
2205 |
void JavaThread::cleanup_failed_attach_current_thread(bool is_daemon) { |
1560
1b328492b7f8
6770608: G1: Mutator thread can flush barrier and satb queues during safepoint
iveresov
parents:
1415
diff
changeset
|
2206 |
if (active_handles() != NULL) { |
1b328492b7f8
6770608: G1: Mutator thread can flush barrier and satb queues during safepoint
iveresov
parents:
1415
diff
changeset
|
2207 |
JNIHandleBlock* block = active_handles(); |
1b328492b7f8
6770608: G1: Mutator thread can flush barrier and satb queues during safepoint
iveresov
parents:
1415
diff
changeset
|
2208 |
set_active_handles(NULL); |
1b328492b7f8
6770608: G1: Mutator thread can flush barrier and satb queues during safepoint
iveresov
parents:
1415
diff
changeset
|
2209 |
JNIHandleBlock::release_block(block); |
1b328492b7f8
6770608: G1: Mutator thread can flush barrier and satb queues during safepoint
iveresov
parents:
1415
diff
changeset
|
2210 |
} |
1b328492b7f8
6770608: G1: Mutator thread can flush barrier and satb queues during safepoint
iveresov
parents:
1415
diff
changeset
|
2211 |
|
1b328492b7f8
6770608: G1: Mutator thread can flush barrier and satb queues during safepoint
iveresov
parents:
1415
diff
changeset
|
2212 |
if (free_handle_block() != NULL) { |
1b328492b7f8
6770608: G1: Mutator thread can flush barrier and satb queues during safepoint
iveresov
parents:
1415
diff
changeset
|
2213 |
JNIHandleBlock* block = free_handle_block(); |
1b328492b7f8
6770608: G1: Mutator thread can flush barrier and satb queues during safepoint
iveresov
parents:
1415
diff
changeset
|
2214 |
set_free_handle_block(NULL); |
1b328492b7f8
6770608: G1: Mutator thread can flush barrier and satb queues during safepoint
iveresov
parents:
1415
diff
changeset
|
2215 |
JNIHandleBlock::release_block(block); |
1b328492b7f8
6770608: G1: Mutator thread can flush barrier and satb queues during safepoint
iveresov
parents:
1415
diff
changeset
|
2216 |
} |
1b328492b7f8
6770608: G1: Mutator thread can flush barrier and satb queues during safepoint
iveresov
parents:
1415
diff
changeset
|
2217 |
|
5041
5bce37d77dde
6914050: jvm assertion "guard pages must be in use" in -Xcomp mode
coleenp
parents:
4761
diff
changeset
|
2218 |
// These have to be removed while this is still a valid thread. |
5bce37d77dde
6914050: jvm assertion "guard pages must be in use" in -Xcomp mode
coleenp
parents:
4761
diff
changeset
|
2219 |
remove_stack_guard_pages(); |
5bce37d77dde
6914050: jvm assertion "guard pages must be in use" in -Xcomp mode
coleenp
parents:
4761
diff
changeset
|
2220 |
|
1560
1b328492b7f8
6770608: G1: Mutator thread can flush barrier and satb queues during safepoint
iveresov
parents:
1415
diff
changeset
|
2221 |
if (UseTLAB) { |
51817
46eac084082d
8210857: Allow retiring TLABs and collecting statistics in parallel
pliden
parents:
51702
diff
changeset
|
2222 |
tlab().retire(); |
1560
1b328492b7f8
6770608: G1: Mutator thread can flush barrier and satb queues during safepoint
iveresov
parents:
1415
diff
changeset
|
2223 |
} |
1b328492b7f8
6770608: G1: Mutator thread can flush barrier and satb queues during safepoint
iveresov
parents:
1415
diff
changeset
|
2224 |
|
49007
82d9d5744e5f
8197994: Move JavaThread::initialize_queues() logic to G1SATBCardTableLoggingModRefBS
pliden
parents:
49006
diff
changeset
|
2225 |
BarrierSet::barrier_set()->on_thread_detach(this); |
1560
1b328492b7f8
6770608: G1: Mutator thread can flush barrier and satb queues during safepoint
iveresov
parents:
1415
diff
changeset
|
2226 |
|
54416
b788c494aa46
8218483: Crash in "assert(_daemon_threads_count->get_value() > daemon_count) failed: thread count mismatch 5 : 5"
dholmes
parents:
54385
diff
changeset
|
2227 |
Threads::remove(this, is_daemon); |
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2228 |
this->smr_delete(); |
1 | 2229 |
} |
2230 |
||
2231 |
JavaThread* JavaThread::active() { |
|
34633
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
34285
diff
changeset
|
2232 |
Thread* thread = Thread::current(); |
1 | 2233 |
if (thread->is_Java_thread()) { |
2234 |
return (JavaThread*) thread; |
|
2235 |
} else { |
|
2236 |
assert(thread->is_VM_thread(), "this must be a vm thread"); |
|
2237 |
VM_Operation* op = ((VMThread*) thread)->vm_operation(); |
|
2238 |
JavaThread *ret=op == NULL ? NULL : (JavaThread *)op->calling_thread(); |
|
2239 |
assert(ret->is_Java_thread(), "must be a Java thread"); |
|
2240 |
return ret; |
|
2241 |
} |
|
2242 |
} |
|
2243 |
||
2244 |
bool JavaThread::is_lock_owned(address adr) const { |
|
2526
39a58a50be35
6699669: Hotspot server leaves synchronized block with monitor in bad state
xlu
parents:
2336
diff
changeset
|
2245 |
if (Thread::is_lock_owned(adr)) return true; |
1 | 2246 |
|
2247 |
for (MonitorChunk* chunk = monitor_chunks(); chunk != NULL; chunk = chunk->next()) { |
|
2248 |
if (chunk->contains(adr)) return true; |
|
2249 |
} |
|
2250 |
||
2251 |
return false; |
|
2252 |
} |
|
2253 |
||
2254 |
||
2255 |
void JavaThread::add_monitor_chunk(MonitorChunk* chunk) { |
|
2256 |
chunk->set_next(monitor_chunks()); |
|
2257 |
set_monitor_chunks(chunk); |
|
2258 |
} |
|
2259 |
||
2260 |
void JavaThread::remove_monitor_chunk(MonitorChunk* chunk) { |
|
2261 |
guarantee(monitor_chunks() != NULL, "must be non empty"); |
|
2262 |
if (monitor_chunks() == chunk) { |
|
2263 |
set_monitor_chunks(chunk->next()); |
|
2264 |
} else { |
|
2265 |
MonitorChunk* prev = monitor_chunks(); |
|
2266 |
while (prev->next() != chunk) prev = prev->next(); |
|
2267 |
prev->set_next(chunk->next()); |
|
2268 |
} |
|
2269 |
} |
|
2270 |
||
2271 |
// JVM support. |
|
2272 |
||
2273 |
// Note: this function shouldn't block if it's called in |
|
2274 |
// _thread_in_native_trans state (such as from |
|
2275 |
// check_special_condition_for_native_trans()). |
|
2276 |
void JavaThread::check_and_handle_async_exceptions(bool check_unsafe_error) { |
|
2277 |
||
2278 |
if (has_last_Java_frame() && has_async_condition()) { |
|
2279 |
// If we are at a polling page safepoint (not a poll return) |
|
2280 |
// then we must defer async exception because live registers |
|
2281 |
// will be clobbered by the exception path. Poll return is |
|
2282 |
// ok because the call we a returning from already collides |
|
2283 |
// with exception handling registers and so there is no issue. |
|
2284 |
// (The exception handling path kills call result registers but |
|
2285 |
// this is ok since the exception kills the result anyway). |
|
2286 |
||
2287 |
if (is_at_poll_safepoint()) { |
|
2288 |
// if the code we are returning to has deoptimized we must defer |
|
2289 |
// the exception otherwise live registers get clobbered on the |
|
2290 |
// exception path before deoptimization is able to retrieve them. |
|
2291 |
// |
|
2292 |
RegisterMap map(this, false); |
|
2293 |
frame caller_fr = last_frame().sender(&map); |
|
2294 |
assert(caller_fr.is_compiled_frame(), "what?"); |
|
2295 |
if (caller_fr.is_deoptimized_frame()) { |
|
35216
71c463a17b3b
8141211: Convert TraceExceptions to Unified Logging
rprotacio
parents:
35201
diff
changeset
|
2296 |
log_info(exceptions)("deferred async exception at compiled safepoint"); |
1 | 2297 |
return; |
2298 |
} |
|
2299 |
} |
|
2300 |
} |
|
2301 |
||
2302 |
JavaThread::AsyncRequests condition = clear_special_runtime_exit_condition(); |
|
2303 |
if (condition == _no_async_condition) { |
|
2304 |
// Conditions have changed since has_special_runtime_exit_condition() |
|
2305 |
// was called: |
|
2306 |
// - if we were here only because of an external suspend request, |
|
2307 |
// then that was taken care of above (or cancelled) so we are done |
|
2308 |
// - if we were here because of another async request, then it has |
|
2309 |
// been cleared between the has_special_runtime_exit_condition() |
|
2310 |
// and now so again we are done |
|
2311 |
return; |
|
2312 |
} |
|
2313 |
||
2314 |
// Check for pending async. exception |
|
2315 |
if (_pending_async_exception != NULL) { |
|
2316 |
// Only overwrite an already pending exception, if it is not a threadDeath. |
|
4571 | 2317 |
if (!has_pending_exception() || !pending_exception()->is_a(SystemDictionary::ThreadDeath_klass())) { |
1 | 2318 |
|
2319 |
// We cannot call Exceptions::_throw(...) here because we cannot block |
|
2320 |
set_pending_exception(_pending_async_exception, __FILE__, __LINE__); |
|
2321 |
||
46701
f559541c0daa
8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents:
46658
diff
changeset
|
2322 |
LogTarget(Info, exceptions) lt; |
f559541c0daa
8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents:
46658
diff
changeset
|
2323 |
if (lt.is_enabled()) { |
1 | 2324 |
ResourceMark rm; |
46701
f559541c0daa
8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents:
46658
diff
changeset
|
2325 |
LogStream ls(lt); |
f559541c0daa
8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents:
46658
diff
changeset
|
2326 |
ls.print("Async. exception installed at runtime exit (" INTPTR_FORMAT ")", p2i(this)); |
35216
71c463a17b3b
8141211: Convert TraceExceptions to Unified Logging
rprotacio
parents:
35201
diff
changeset
|
2327 |
if (has_last_Java_frame()) { |
71c463a17b3b
8141211: Convert TraceExceptions to Unified Logging
rprotacio
parents:
35201
diff
changeset
|
2328 |
frame f = last_frame(); |
46701
f559541c0daa
8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents:
46658
diff
changeset
|
2329 |
ls.print(" (pc: " INTPTR_FORMAT " sp: " INTPTR_FORMAT " )", p2i(f.pc()), p2i(f.sp())); |
35216
71c463a17b3b
8141211: Convert TraceExceptions to Unified Logging
rprotacio
parents:
35201
diff
changeset
|
2330 |
} |
46701
f559541c0daa
8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents:
46658
diff
changeset
|
2331 |
ls.print_cr(" of type: %s", _pending_async_exception->klass()->external_name()); |
1 | 2332 |
} |
2333 |
_pending_async_exception = NULL; |
|
2334 |
clear_has_async_exception(); |
|
2335 |
} |
|
2336 |
} |
|
2337 |
||
2338 |
if (check_unsafe_error && |
|
2339 |
condition == _async_unsafe_access_error && !has_pending_exception()) { |
|
2340 |
condition = _no_async_condition; // done |
|
2341 |
switch (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
|
2342 |
case _thread_in_vm: { |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
2343 |
JavaThread* THREAD = this; |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
2344 |
THROW_MSG(vmSymbols::java_lang_InternalError(), "a fault occurred in an unsafe memory access operation"); |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
2345 |
} |
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
2346 |
case _thread_in_native: { |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
2347 |
ThreadInVMfromNative tiv(this); |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
2348 |
JavaThread* THREAD = this; |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
2349 |
THROW_MSG(vmSymbols::java_lang_InternalError(), "a fault occurred in an unsafe memory access operation"); |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
2350 |
} |
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
2351 |
case _thread_in_Java: { |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
2352 |
ThreadInVMfromJava tiv(this); |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
2353 |
JavaThread* THREAD = this; |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
2354 |
THROW_MSG(vmSymbols::java_lang_InternalError(), "a fault occurred in a recent unsafe memory access operation in compiled Java code"); |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
2355 |
} |
1 | 2356 |
default: |
2357 |
ShouldNotReachHere(); |
|
2358 |
} |
|
2359 |
} |
|
2360 |
||
2361 |
assert(condition == _no_async_condition || has_pending_exception() || |
|
2362 |
(!check_unsafe_error && condition == _async_unsafe_access_error), |
|
2363 |
"must have handled the async condition, if no exception"); |
|
2364 |
} |
|
2365 |
||
2366 |
void JavaThread::handle_special_runtime_exit_condition(bool check_asyncs) { |
|
57559 | 2367 |
|
54259 | 2368 |
// Check for pending external suspend. |
57559 | 2369 |
if (is_external_suspend_with_lock()) { |
1 | 2370 |
frame_anchor()->make_walkable(this); |
54259 | 2371 |
java_suspend_self_with_safepoint_check(); |
2372 |
} |
|
2373 |
||
2374 |
// We might be here for reasons in addition to the self-suspend request |
|
2375 |
// so check for other async requests. |
|
1 | 2376 |
if (check_asyncs) { |
2377 |
check_and_handle_async_exceptions(); |
|
2378 |
} |
|
50113 | 2379 |
|
2380 |
JFR_ONLY(SUSPEND_THREAD_CONDITIONAL(this);) |
|
1 | 2381 |
} |
2382 |
||
2383 |
void JavaThread::send_thread_stop(oop java_throwable) { |
|
2384 |
assert(Thread::current()->is_VM_thread(), "should be in the vm thread"); |
|
2385 |
assert(Threads_lock->is_locked(), "Threads_lock should be locked by safepoint code"); |
|
2386 |
assert(SafepointSynchronize::is_at_safepoint(), "all threads are stopped"); |
|
2387 |
||
2388 |
// Do not throw asynchronous exceptions against the compiler thread |
|
2389 |
// (the compiler thread should not be a Java thread -- fix in 1.4.2) |
|
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
2390 |
if (!can_call_java()) return; |
1 | 2391 |
|
2392 |
{ |
|
2393 |
// Actually throw the Throwable against the target Thread - however |
|
2394 |
// only if there is no thread death exception installed already. |
|
4571 | 2395 |
if (_pending_async_exception == NULL || !_pending_async_exception->is_a(SystemDictionary::ThreadDeath_klass())) { |
1 | 2396 |
// If the topmost frame is a runtime stub, then we are calling into |
2397 |
// OptoRuntime from compiled code. Some runtime stubs (new, monitor_exit..) |
|
2398 |
// must deoptimize the caller before continuing, as the compiled exception handler table |
|
2399 |
// may not be valid |
|
2400 |
if (has_last_Java_frame()) { |
|
2401 |
frame f = last_frame(); |
|
2402 |
if (f.is_runtime_frame() || f.is_safepoint_blob_frame()) { |
|
2403 |
// BiasedLocking needs an updated RegisterMap for the revoke monitors pass |
|
2404 |
RegisterMap reg_map(this, UseBiasedLocking); |
|
2405 |
frame compiled_frame = f.sender(®_map); |
|
14835
70896cb93c35
8004741: Missing compiled exception handle table entry for multidimensional array allocation
kvn
parents:
14633
diff
changeset
|
2406 |
if (!StressCompiledExceptionHandlers && compiled_frame.can_be_deoptimized()) { |
1 | 2407 |
Deoptimization::deoptimize(this, compiled_frame, ®_map); |
2408 |
} |
|
2409 |
} |
|
2410 |
} |
|
2411 |
||
2412 |
// Set async. pending exception in thread. |
|
2413 |
set_pending_async_exception(java_throwable); |
|
2414 |
||
35216
71c463a17b3b
8141211: Convert TraceExceptions to Unified Logging
rprotacio
parents:
35201
diff
changeset
|
2415 |
if (log_is_enabled(Info, exceptions)) { |
71c463a17b3b
8141211: Convert TraceExceptions to Unified Logging
rprotacio
parents:
35201
diff
changeset
|
2416 |
ResourceMark rm; |
71c463a17b3b
8141211: Convert TraceExceptions to Unified Logging
rprotacio
parents:
35201
diff
changeset
|
2417 |
log_info(exceptions)("Pending Async. exception installed of type: %s", |
71c463a17b3b
8141211: Convert TraceExceptions to Unified Logging
rprotacio
parents:
35201
diff
changeset
|
2418 |
InstanceKlass::cast(_pending_async_exception->klass())->external_name()); |
1 | 2419 |
} |
2420 |
// for AbortVMOnException flag |
|
33602 | 2421 |
Exceptions::debug_check_abort(_pending_async_exception->klass()->external_name()); |
1 | 2422 |
} |
2423 |
} |
|
2424 |
||
2425 |
||
58196
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
2426 |
// Interrupt thread so it will wake up from a potential wait()/sleep()/park() |
58901
2700c409ff10
8229516: Thread.isInterrupted() always returns false after thread termination
dholmes
parents:
58842
diff
changeset
|
2427 |
java_lang_Thread::set_interrupted(threadObj(), true); |
58196
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
2428 |
this->interrupt(); |
1 | 2429 |
} |
2430 |
||
2431 |
// External suspension mechanism. |
|
2432 |
// |
|
2433 |
// Tell the VM to suspend a thread when ever it knows that it does not hold on |
|
2434 |
// to any VM_locks and it is at a transition |
|
2435 |
// Self-suspension will happen on the transition out of the vm. |
|
2436 |
// Catch "this" coming in from JNIEnv pointers when the thread has been freed |
|
2437 |
// |
|
2438 |
// Guarantees on return: |
|
2439 |
// + Target thread will not execute any new bytecode (that's why we need to |
|
2440 |
// force a safepoint) |
|
2441 |
// + Target thread will not enter any new monitors |
|
2442 |
// |
|
2443 |
void JavaThread::java_suspend() { |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2444 |
ThreadsListHandle tlh; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2445 |
if (!tlh.includes(this) || threadObj() == NULL || is_exiting()) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2446 |
return; |
1 | 2447 |
} |
2448 |
||
54623
1126f0607c70
8222811: Consolidate MutexLockerEx and MutexLocker
coleenp
parents:
54495
diff
changeset
|
2449 |
{ MutexLocker ml(SR_lock(), Mutex::_no_safepoint_check_flag); |
1 | 2450 |
if (!is_external_suspend()) { |
2451 |
// a racing resume has cancelled us; bail out now |
|
2452 |
return; |
|
2453 |
} |
|
2454 |
||
2455 |
// suspend is done |
|
2456 |
uint32_t debug_bits = 0; |
|
2457 |
// Warning: is_ext_suspend_completed() may temporarily drop the |
|
2458 |
// SR_lock to allow the thread to reach a stable thread state if |
|
2459 |
// it is currently in a transient thread state. |
|
2460 |
if (is_ext_suspend_completed(false /* !called_by_wait */, |
|
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
2461 |
SuspendRetryDelay, &debug_bits)) { |
1 | 2462 |
return; |
2463 |
} |
|
2464 |
} |
|
2465 |
||
53518
2181425e0460
8217618: JVM TI SuspendThread doesn't suspend the current thread before returning
dholmes
parents:
53305
diff
changeset
|
2466 |
if (Thread::current() == this) { |
2181425e0460
8217618: JVM TI SuspendThread doesn't suspend the current thread before returning
dholmes
parents:
53305
diff
changeset
|
2467 |
// Safely self-suspend. |
2181425e0460
8217618: JVM TI SuspendThread doesn't suspend the current thread before returning
dholmes
parents:
53305
diff
changeset
|
2468 |
// If we don't do this explicitly it will implicitly happen |
2181425e0460
8217618: JVM TI SuspendThread doesn't suspend the current thread before returning
dholmes
parents:
53305
diff
changeset
|
2469 |
// before we transition back to Java, and on some other thread-state |
2181425e0460
8217618: JVM TI SuspendThread doesn't suspend the current thread before returning
dholmes
parents:
53305
diff
changeset
|
2470 |
// transition paths, but not as we exit a JVM TI SuspendThread call. |
2181425e0460
8217618: JVM TI SuspendThread doesn't suspend the current thread before returning
dholmes
parents:
53305
diff
changeset
|
2471 |
// As SuspendThread(current) must not return (until resumed) we must |
2181425e0460
8217618: JVM TI SuspendThread doesn't suspend the current thread before returning
dholmes
parents:
53305
diff
changeset
|
2472 |
// self-suspend here. |
2181425e0460
8217618: JVM TI SuspendThread doesn't suspend the current thread before returning
dholmes
parents:
53305
diff
changeset
|
2473 |
ThreadBlockInVM tbivm(this); |
2181425e0460
8217618: JVM TI SuspendThread doesn't suspend the current thread before returning
dholmes
parents:
53305
diff
changeset
|
2474 |
java_suspend_self(); |
2181425e0460
8217618: JVM TI SuspendThread doesn't suspend the current thread before returning
dholmes
parents:
53305
diff
changeset
|
2475 |
} else { |
2181425e0460
8217618: JVM TI SuspendThread doesn't suspend the current thread before returning
dholmes
parents:
53305
diff
changeset
|
2476 |
VM_ThreadSuspend vm_suspend; |
2181425e0460
8217618: JVM TI SuspendThread doesn't suspend the current thread before returning
dholmes
parents:
53305
diff
changeset
|
2477 |
VMThread::execute(&vm_suspend); |
2181425e0460
8217618: JVM TI SuspendThread doesn't suspend the current thread before returning
dholmes
parents:
53305
diff
changeset
|
2478 |
} |
1 | 2479 |
} |
2480 |
||
2481 |
// Part II of external suspension. |
|
2482 |
// A JavaThread self suspends when it detects a pending external suspend |
|
2483 |
// request. This is usually on transitions. It is also done in places |
|
2484 |
// where continuing to the next transition would surprise the caller, |
|
2485 |
// e.g., monitor entry. |
|
2486 |
// |
|
2487 |
// Returns the number of times that the thread self-suspended. |
|
2488 |
// |
|
2489 |
// Note: DO NOT call java_suspend_self() when you just want to block current |
|
2490 |
// thread. java_suspend_self() is the second stage of cooperative |
|
2491 |
// suspension for external suspend requests and should only be used |
|
2492 |
// to complete an external suspend request. |
|
2493 |
// |
|
2494 |
int JavaThread::java_suspend_self() { |
|
54259 | 2495 |
assert(thread_state() == _thread_blocked, "wrong state for java_suspend_self()"); |
1 | 2496 |
int ret = 0; |
2497 |
||
2498 |
// we are in the process of exiting so don't suspend |
|
2499 |
if (is_exiting()) { |
|
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
2500 |
clear_external_suspend(); |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
2501 |
return ret; |
1 | 2502 |
} |
2503 |
||
2504 |
assert(_anchor.walkable() || |
|
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
2505 |
(is_Java_thread() && !((JavaThread*)this)->has_last_Java_frame()), |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
2506 |
"must have walkable stack"); |
1 | 2507 |
|
54645
05aaccf7d558
8222988: Use MonitorLocker rather than MutexLocker when wait/notify used
coleenp
parents:
54631
diff
changeset
|
2508 |
MonitorLocker ml(SR_lock(), Mutex::_no_safepoint_check_flag); |
1 | 2509 |
|
3826 | 2510 |
assert(!this->is_ext_suspended(), |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
2511 |
"a thread trying to self-suspend should not already be suspended"); |
1 | 2512 |
|
2513 |
if (this->is_suspend_equivalent()) { |
|
2514 |
// If we are self-suspending as a result of the lifting of a |
|
2515 |
// suspend equivalent condition, then the suspend_equivalent |
|
2516 |
// flag is not cleared until we set the ext_suspended flag so |
|
2517 |
// that wait_for_ext_suspend_completion() returns consistent |
|
2518 |
// results. |
|
2519 |
this->clear_suspend_equivalent(); |
|
2520 |
} |
|
2521 |
||
2522 |
// A racing resume may have cancelled us before we grabbed SR_lock |
|
2523 |
// above. Or another external suspend request could be waiting for us |
|
2524 |
// by the time we return from SR_lock()->wait(). The thread |
|
2525 |
// that requested the suspension may already be trying to walk our |
|
2526 |
// stack and if we return now, we can change the stack out from under |
|
2527 |
// it. This would be a "bad thing (TM)" and cause the stack walker |
|
2528 |
// to crash. We stay self-suspended until there are no more pending |
|
2529 |
// external suspend requests. |
|
2530 |
while (is_external_suspend()) { |
|
2531 |
ret++; |
|
2532 |
this->set_ext_suspended(); |
|
2533 |
||
2534 |
// _ext_suspended flag is cleared by java_resume() |
|
2535 |
while (is_ext_suspended()) { |
|
54645
05aaccf7d558
8222988: Use MonitorLocker rather than MutexLocker when wait/notify used
coleenp
parents:
54631
diff
changeset
|
2536 |
ml.wait(); |
1 | 2537 |
} |
2538 |
} |
|
2539 |
return ret; |
|
2540 |
} |
|
2541 |
||
54259 | 2542 |
// Helper routine to set up the correct thread state before calling java_suspend_self. |
2543 |
// This is called when regular thread-state transition helpers can't be used because |
|
2544 |
// we can be in various states, in particular _thread_in_native_trans. |
|
2545 |
// Because this thread is external suspended the safepoint code will count it as at |
|
2546 |
// a safepoint, regardless of what its actual current thread-state is. But |
|
2547 |
// is_ext_suspend_completed() may be waiting to see a thread transition from |
|
2548 |
// _thread_in_native_trans to _thread_blocked. So we set the thread state directly |
|
2549 |
// to _thread_blocked. The problem with setting thread state directly is that a |
|
2550 |
// safepoint could happen just after java_suspend_self() returns after being resumed, |
|
2551 |
// and the VM thread will see the _thread_blocked state. So we must check for a safepoint |
|
2552 |
// after restoring the state to make sure we won't leave while a safepoint is in progress. |
|
2553 |
// However, not all initial-states are allowed when performing a safepoint check, as we |
|
2554 |
// should never be blocking at a safepoint whilst in those states. Of these 'bad' states |
|
2555 |
// only _thread_in_native is possible when executing this code (based on our two callers). |
|
2556 |
// A thread that is _thread_in_native is already safepoint-safe and so it doesn't matter |
|
2557 |
// whether the VMThread sees the _thread_blocked state, or the _thread_in_native state, |
|
2558 |
// and so we don't need the explicit safepoint check. |
|
2559 |
||
2560 |
void JavaThread::java_suspend_self_with_safepoint_check() { |
|
2561 |
assert(this == Thread::current(), "invariant"); |
|
2562 |
JavaThreadState state = thread_state(); |
|
2563 |
set_thread_state(_thread_blocked); |
|
2564 |
java_suspend_self(); |
|
54495
941db9c0b5b5
8222231: Clean up interfaceSupport.inline.hpp duplicated code
coleenp
parents:
54439
diff
changeset
|
2565 |
set_thread_state_fence(state); |
54323 | 2566 |
// Since we are not using a regular thread-state transition helper here, |
2567 |
// we must manually emit the instruction barrier after leaving a safe state. |
|
2568 |
OrderAccess::cross_modify_fence(); |
|
54259 | 2569 |
if (state != _thread_in_native) { |
2570 |
SafepointMechanism::block_if_requested(this); |
|
2571 |
} |
|
2572 |
} |
|
2573 |
||
1 | 2574 |
#ifdef ASSERT |
49636 | 2575 |
// Verify the JavaThread has not yet been published in the Threads::list, and |
2576 |
// hence doesn't need protection from concurrent access at this stage. |
|
1 | 2577 |
void JavaThread::verify_not_published() { |
49636 | 2578 |
// Cannot create a ThreadsListHandle here and check !tlh.includes(this) |
2579 |
// since an unpublished JavaThread doesn't participate in the |
|
2580 |
// Thread-SMR protocol for keeping a ThreadsList alive. |
|
2581 |
assert(!on_thread_list(), "JavaThread shouldn't have been published yet!"); |
|
1 | 2582 |
} |
2583 |
#endif |
|
2584 |
||
2585 |
// Slow path when the native==>VM/Java barriers detect a safepoint is in |
|
2586 |
// progress or when _suspend_flags is non-zero. |
|
2587 |
// Current thread needs to self-suspend if there is a suspend request and/or |
|
2588 |
// block if a safepoint is in progress. |
|
2589 |
// Async exception ISN'T checked. |
|
2590 |
// Note only the ThreadInVMfromNative transition can call this function |
|
2591 |
// directly and when thread state is _thread_in_native_trans |
|
2592 |
void JavaThread::check_safepoint_and_suspend_for_native_trans(JavaThread *thread) { |
|
2593 |
assert(thread->thread_state() == _thread_in_native_trans, "wrong state"); |
|
2594 |
||
57559 | 2595 |
assert(!thread->has_last_Java_frame() || thread->frame_anchor()->walkable(), "Unwalkable stack in native->vm transition"); |
2596 |
||
2597 |
if (thread->is_external_suspend()) { |
|
54259 | 2598 |
thread->java_suspend_self_with_safepoint_check(); |
2599 |
} else { |
|
57559 | 2600 |
SafepointMechanism::block_if_requested(thread); |
54259 | 2601 |
} |
1 | 2602 |
|
50113 | 2603 |
JFR_ONLY(SUSPEND_THREAD_CONDITIONAL(thread);) |
1 | 2604 |
} |
2605 |
||
2606 |
// Slow path when the native==>VM/Java barriers detect a safepoint is in |
|
2607 |
// progress or when _suspend_flags is non-zero. |
|
2608 |
// Current thread needs to self-suspend if there is a suspend request and/or |
|
2609 |
// block if a safepoint is in progress. |
|
2610 |
// Also check for pending async exception (not including unsafe access error). |
|
2611 |
// Note only the native==>VM/Java barriers can call this function and when |
|
2612 |
// thread state is _thread_in_native_trans. |
|
2613 |
void JavaThread::check_special_condition_for_native_trans(JavaThread *thread) { |
|
2614 |
check_safepoint_and_suspend_for_native_trans(thread); |
|
2615 |
||
2616 |
if (thread->has_async_exception()) { |
|
2617 |
// We are in _thread_in_native_trans state, don't handle unsafe |
|
2618 |
// access error since that may block. |
|
2619 |
thread->check_and_handle_async_exceptions(false); |
|
2620 |
} |
|
2621 |
} |
|
2622 |
||
11637
030466036615
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
11636
diff
changeset
|
2623 |
// This is a variant of the normal |
030466036615
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
11636
diff
changeset
|
2624 |
// check_special_condition_for_native_trans with slightly different |
030466036615
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
11636
diff
changeset
|
2625 |
// semantics for use by critical native wrappers. It does all the |
030466036615
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
11636
diff
changeset
|
2626 |
// normal checks but also performs the transition back into |
030466036615
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
11636
diff
changeset
|
2627 |
// thread_in_Java state. This is required so that critical natives |
030466036615
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
11636
diff
changeset
|
2628 |
// can potentially block and perform a GC if they are the last thread |
35492
c8c0273e6b91
8146690: Make all classes in GC follow the naming convention.
david
parents:
35481
diff
changeset
|
2629 |
// exiting the GCLocker. |
11637
030466036615
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
11636
diff
changeset
|
2630 |
void JavaThread::check_special_condition_for_native_trans_and_transition(JavaThread *thread) { |
030466036615
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
11636
diff
changeset
|
2631 |
check_special_condition_for_native_trans(thread); |
030466036615
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
11636
diff
changeset
|
2632 |
|
030466036615
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
11636
diff
changeset
|
2633 |
// Finish the transition |
030466036615
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
11636
diff
changeset
|
2634 |
thread->set_thread_state(_thread_in_Java); |
030466036615
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
11636
diff
changeset
|
2635 |
|
030466036615
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
11636
diff
changeset
|
2636 |
if (thread->do_critical_native_unlock()) { |
030466036615
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
11636
diff
changeset
|
2637 |
ThreadInVMfromJavaNoAsyncException tiv(thread); |
35492
c8c0273e6b91
8146690: Make all classes in GC follow the naming convention.
david
parents:
35481
diff
changeset
|
2638 |
GCLocker::unlock_critical(thread); |
11637
030466036615
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
11636
diff
changeset
|
2639 |
thread->clear_critical_native_unlock(); |
030466036615
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
11636
diff
changeset
|
2640 |
} |
030466036615
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
11636
diff
changeset
|
2641 |
} |
030466036615
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
11636
diff
changeset
|
2642 |
|
1 | 2643 |
// We need to guarantee the Threads_lock here, since resumes are not |
2644 |
// allowed during safepoint synchronization |
|
2645 |
// Can only resume from an external suspension |
|
2646 |
void JavaThread::java_resume() { |
|
2647 |
assert_locked_or_safepoint(Threads_lock); |
|
2648 |
||
2649 |
// Sanity check: thread is gone, has started exiting or the thread |
|
2650 |
// was not externally suspended. |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2651 |
ThreadsListHandle tlh; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
2652 |
if (!tlh.includes(this) || is_exiting() || !is_external_suspend()) { |
1 | 2653 |
return; |
2654 |
} |
|
2655 |
||
54623
1126f0607c70
8222811: Consolidate MutexLockerEx and MutexLocker
coleenp
parents:
54495
diff
changeset
|
2656 |
MutexLocker ml(SR_lock(), Mutex::_no_safepoint_check_flag); |
1 | 2657 |
|
2658 |
clear_external_suspend(); |
|
2659 |
||
2660 |
if (is_ext_suspended()) { |
|
2661 |
clear_ext_suspended(); |
|
2662 |
SR_lock()->notify_all(); |
|
2663 |
} |
|
2664 |
} |
|
2665 |
||
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
2666 |
size_t JavaThread::_stack_red_zone_size = 0; |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
2667 |
size_t JavaThread::_stack_yellow_zone_size = 0; |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
2668 |
size_t JavaThread::_stack_reserved_zone_size = 0; |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
2669 |
size_t JavaThread::_stack_shadow_zone_size = 0; |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
2670 |
|
1 | 2671 |
void JavaThread::create_stack_guard_pages() { |
48005
9fd89aabb6cd
8189170: Add option to disable stack overflow checking in primordial thread for use with JNI_CreateJavaJVM
dholmes
parents:
47917
diff
changeset
|
2672 |
if (!os::uses_stack_guard_pages() || |
9fd89aabb6cd
8189170: Add option to disable stack overflow checking in primordial thread for use with JNI_CreateJavaJVM
dholmes
parents:
47917
diff
changeset
|
2673 |
_stack_guard_state != stack_guard_unused || |
9fd89aabb6cd
8189170: Add option to disable stack overflow checking in primordial thread for use with JNI_CreateJavaJVM
dholmes
parents:
47917
diff
changeset
|
2674 |
(DisablePrimordialThreadGuardPages && os::is_primordial_thread())) { |
9fd89aabb6cd
8189170: Add option to disable stack overflow checking in primordial thread for use with JNI_CreateJavaJVM
dholmes
parents:
47917
diff
changeset
|
2675 |
log_info(os, thread)("Stack guard page creation for thread " |
9fd89aabb6cd
8189170: Add option to disable stack overflow checking in primordial thread for use with JNI_CreateJavaJVM
dholmes
parents:
47917
diff
changeset
|
2676 |
UINTX_FORMAT " disabled", os::current_thread_id()); |
9fd89aabb6cd
8189170: Add option to disable stack overflow checking in primordial thread for use with JNI_CreateJavaJVM
dholmes
parents:
47917
diff
changeset
|
2677 |
return; |
9fd89aabb6cd
8189170: Add option to disable stack overflow checking in primordial thread for use with JNI_CreateJavaJVM
dholmes
parents:
47917
diff
changeset
|
2678 |
} |
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
2679 |
address low_addr = stack_end(); |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
2680 |
size_t len = stack_guard_zone_size(); |
1 | 2681 |
|
46974
2c6c8846e176
8186286: [BSD] Primary thread's stack size is reported incorrectly
ghaug
parents:
46968
diff
changeset
|
2682 |
assert(is_aligned(low_addr, os::vm_page_size()), "Stack base should be the start of a page"); |
2c6c8846e176
8186286: [BSD] Primary thread's stack size is reported incorrectly
ghaug
parents:
46968
diff
changeset
|
2683 |
assert(is_aligned(len, os::vm_page_size()), "Stack size should be a multiple of page size"); |
2c6c8846e176
8186286: [BSD] Primary thread's stack size is reported incorrectly
ghaug
parents:
46968
diff
changeset
|
2684 |
|
39390
edf6a424a8b7
8159335: Fix problems with stack overflow handling.
goetz
parents:
38697
diff
changeset
|
2685 |
int must_commit = os::must_commit_stack_guard_pages(); |
1 | 2686 |
// warning("Guarding at " PTR_FORMAT " for len " SIZE_FORMAT "\n", low_addr, len); |
2687 |
||
39390
edf6a424a8b7
8159335: Fix problems with stack overflow handling.
goetz
parents:
38697
diff
changeset
|
2688 |
if (must_commit && !os::create_stack_guard_pages((char *) low_addr, len)) { |
36355
dd339cbafd31
8149036: Add tracing for thread related events at os level
stuefe
parents:
36199
diff
changeset
|
2689 |
log_warning(os, thread)("Attempt to allocate stack guard pages failed."); |
1 | 2690 |
return; |
2691 |
} |
|
2692 |
||
2693 |
if (os::guard_memory((char *) low_addr, len)) { |
|
2694 |
_stack_guard_state = stack_guard_enabled; |
|
2695 |
} else { |
|
36355
dd339cbafd31
8149036: Add tracing for thread related events at os level
stuefe
parents:
36199
diff
changeset
|
2696 |
log_warning(os, thread)("Attempt to protect stack guard pages failed (" |
dd339cbafd31
8149036: Add tracing for thread related events at os level
stuefe
parents:
36199
diff
changeset
|
2697 |
PTR_FORMAT "-" PTR_FORMAT ").", p2i(low_addr), p2i(low_addr + len)); |
1 | 2698 |
if (os::uncommit_memory((char *) low_addr, len)) { |
36355
dd339cbafd31
8149036: Add tracing for thread related events at os level
stuefe
parents:
36199
diff
changeset
|
2699 |
log_warning(os, thread)("Attempt to deallocate stack guard pages failed."); |
1 | 2700 |
} |
36355
dd339cbafd31
8149036: Add tracing for thread related events at os level
stuefe
parents:
36199
diff
changeset
|
2701 |
return; |
1 | 2702 |
} |
36355
dd339cbafd31
8149036: Add tracing for thread related events at os level
stuefe
parents:
36199
diff
changeset
|
2703 |
|
dd339cbafd31
8149036: Add tracing for thread related events at os level
stuefe
parents:
36199
diff
changeset
|
2704 |
log_debug(os, thread)("Thread " UINTX_FORMAT " stack guard pages activated: " |
dd339cbafd31
8149036: Add tracing for thread related events at os level
stuefe
parents:
36199
diff
changeset
|
2705 |
PTR_FORMAT "-" PTR_FORMAT ".", |
dd339cbafd31
8149036: Add tracing for thread related events at os level
stuefe
parents:
36199
diff
changeset
|
2706 |
os::current_thread_id(), p2i(low_addr), p2i(low_addr + len)); |
1 | 2707 |
} |
2708 |
||
2709 |
void JavaThread::remove_stack_guard_pages() { |
|
14120
7d298141c258
7199092: NMT: NMT needs to deal overlapped virtual memory ranges
zgu
parents:
14083
diff
changeset
|
2710 |
assert(Thread::current() == this, "from different thread"); |
1 | 2711 |
if (_stack_guard_state == stack_guard_unused) return; |
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
2712 |
address low_addr = stack_end(); |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
2713 |
size_t len = stack_guard_zone_size(); |
1 | 2714 |
|
39390
edf6a424a8b7
8159335: Fix problems with stack overflow handling.
goetz
parents:
38697
diff
changeset
|
2715 |
if (os::must_commit_stack_guard_pages()) { |
5085
4f0c435f8c3c
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
5041
diff
changeset
|
2716 |
if (os::remove_stack_guard_pages((char *) low_addr, len)) { |
1 | 2717 |
_stack_guard_state = stack_guard_unused; |
2718 |
} else { |
|
36355
dd339cbafd31
8149036: Add tracing for thread related events at os level
stuefe
parents:
36199
diff
changeset
|
2719 |
log_warning(os, thread)("Attempt to deallocate stack guard pages failed (" |
dd339cbafd31
8149036: Add tracing for thread related events at os level
stuefe
parents:
36199
diff
changeset
|
2720 |
PTR_FORMAT "-" PTR_FORMAT ").", p2i(low_addr), p2i(low_addr + len)); |
dd339cbafd31
8149036: Add tracing for thread related events at os level
stuefe
parents:
36199
diff
changeset
|
2721 |
return; |
1 | 2722 |
} |
2723 |
} else { |
|
2724 |
if (_stack_guard_state == stack_guard_unused) return; |
|
2725 |
if (os::unguard_memory((char *) low_addr, len)) { |
|
2726 |
_stack_guard_state = stack_guard_unused; |
|
2727 |
} else { |
|
36355
dd339cbafd31
8149036: Add tracing for thread related events at os level
stuefe
parents:
36199
diff
changeset
|
2728 |
log_warning(os, thread)("Attempt to unprotect stack guard pages failed (" |
dd339cbafd31
8149036: Add tracing for thread related events at os level
stuefe
parents:
36199
diff
changeset
|
2729 |
PTR_FORMAT "-" PTR_FORMAT ").", p2i(low_addr), p2i(low_addr + len)); |
dd339cbafd31
8149036: Add tracing for thread related events at os level
stuefe
parents:
36199
diff
changeset
|
2730 |
return; |
1 | 2731 |
} |
2732 |
} |
|
36355
dd339cbafd31
8149036: Add tracing for thread related events at os level
stuefe
parents:
36199
diff
changeset
|
2733 |
|
dd339cbafd31
8149036: Add tracing for thread related events at os level
stuefe
parents:
36199
diff
changeset
|
2734 |
log_debug(os, thread)("Thread " UINTX_FORMAT " stack guard pages removed: " |
dd339cbafd31
8149036: Add tracing for thread related events at os level
stuefe
parents:
36199
diff
changeset
|
2735 |
PTR_FORMAT "-" PTR_FORMAT ".", |
dd339cbafd31
8149036: Add tracing for thread related events at os level
stuefe
parents:
36199
diff
changeset
|
2736 |
os::current_thread_id(), p2i(low_addr), p2i(low_addr + len)); |
1 | 2737 |
} |
2738 |
||
35071
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
2739 |
void JavaThread::enable_stack_reserved_zone() { |
53115
b5c41404f2d1
8215879: AArch64: ReservedStackAccess may leave stack guard in inconsistent state
aph
parents:
53084
diff
changeset
|
2740 |
assert(_stack_guard_state == stack_guard_reserved_disabled, "inconsistent state"); |
35071
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
2741 |
|
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
2742 |
// The base notation is from the stack's point of view, growing downward. |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
2743 |
// We need to adjust it to work correctly with guard_memory() |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
2744 |
address base = stack_reserved_zone_base() - stack_reserved_zone_size(); |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
2745 |
|
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
2746 |
guarantee(base < stack_base(),"Error calculating stack reserved zone"); |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
2747 |
guarantee(base < os::current_stack_pointer(),"Error calculating stack reserved zone"); |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
2748 |
|
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
2749 |
if (os::guard_memory((char *) base, stack_reserved_zone_size())) { |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
2750 |
_stack_guard_state = stack_guard_enabled; |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
2751 |
} else { |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
2752 |
warning("Attempt to guard stack reserved zone failed."); |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
2753 |
} |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
2754 |
enable_register_stack_guard(); |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
2755 |
} |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
2756 |
|
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
2757 |
void JavaThread::disable_stack_reserved_zone() { |
53115
b5c41404f2d1
8215879: AArch64: ReservedStackAccess may leave stack guard in inconsistent state
aph
parents:
53084
diff
changeset
|
2758 |
assert(_stack_guard_state == stack_guard_enabled, "inconsistent state"); |
35071
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
2759 |
|
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
2760 |
// Simply return if called for a thread that does not use guard pages. |
53115
b5c41404f2d1
8215879: AArch64: ReservedStackAccess may leave stack guard in inconsistent state
aph
parents:
53084
diff
changeset
|
2761 |
if (_stack_guard_state != stack_guard_enabled) return; |
35071
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
2762 |
|
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
2763 |
// The base notation is from the stack's point of view, growing downward. |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
2764 |
// We need to adjust it to work correctly with guard_memory() |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
2765 |
address base = stack_reserved_zone_base() - stack_reserved_zone_size(); |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
2766 |
|
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
2767 |
if (os::unguard_memory((char *)base, stack_reserved_zone_size())) { |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
2768 |
_stack_guard_state = stack_guard_reserved_disabled; |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
2769 |
} else { |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
2770 |
warning("Attempt to unguard stack reserved zone failed."); |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
2771 |
} |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
2772 |
disable_register_stack_guard(); |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
2773 |
} |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34633
diff
changeset
|
2774 |
|
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
2775 |
void JavaThread::enable_stack_yellow_reserved_zone() { |
1 | 2776 |
assert(_stack_guard_state != stack_guard_unused, "must be using guard pages."); |
2777 |
assert(_stack_guard_state != stack_guard_enabled, "already enabled"); |
|
2778 |
||
2779 |
// The base notation is from the stacks point of view, growing downward. |
|
2780 |
// We need to adjust it to work correctly with guard_memory() |
|
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
2781 |
address base = stack_red_zone_base(); |
1 | 2782 |
|
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
2783 |
guarantee(base < stack_base(), "Error calculating stack yellow zone"); |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
2784 |
guarantee(base < os::current_stack_pointer(), "Error calculating stack yellow zone"); |
1 | 2785 |
|
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
2786 |
if (os::guard_memory((char *) base, stack_yellow_reserved_zone_size())) { |
1 | 2787 |
_stack_guard_state = stack_guard_enabled; |
2788 |
} else { |
|
2789 |
warning("Attempt to guard stack yellow zone failed."); |
|
2790 |
} |
|
2791 |
enable_register_stack_guard(); |
|
2792 |
} |
|
2793 |
||
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
2794 |
void JavaThread::disable_stack_yellow_reserved_zone() { |
1 | 2795 |
assert(_stack_guard_state != stack_guard_unused, "must be using guard pages."); |
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
2796 |
assert(_stack_guard_state != stack_guard_yellow_reserved_disabled, "already disabled"); |
1 | 2797 |
|
2798 |
// Simply return if called for a thread that does not use guard pages. |
|
2799 |
if (_stack_guard_state == stack_guard_unused) return; |
|
2800 |
||
2801 |
// The base notation is from the stacks point of view, growing downward. |
|
2802 |
// We need to adjust it to work correctly with guard_memory() |
|
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
2803 |
address base = stack_red_zone_base(); |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
2804 |
|
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
2805 |
if (os::unguard_memory((char *)base, stack_yellow_reserved_zone_size())) { |
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
2806 |
_stack_guard_state = stack_guard_yellow_reserved_disabled; |
1 | 2807 |
} else { |
2808 |
warning("Attempt to unguard stack yellow zone failed."); |
|
2809 |
} |
|
2810 |
disable_register_stack_guard(); |
|
2811 |
} |
|
2812 |
||
2813 |
void JavaThread::enable_stack_red_zone() { |
|
2814 |
// The base notation is from the stacks point of view, growing downward. |
|
2815 |
// We need to adjust it to work correctly with guard_memory() |
|
2816 |
assert(_stack_guard_state != stack_guard_unused, "must be using guard pages."); |
|
2817 |
address base = stack_red_zone_base() - stack_red_zone_size(); |
|
2818 |
||
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
2819 |
guarantee(base < stack_base(), "Error calculating stack red zone"); |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
2820 |
guarantee(base < os::current_stack_pointer(), "Error calculating stack red zone"); |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
2821 |
|
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
2822 |
if (!os::guard_memory((char *) base, stack_red_zone_size())) { |
1 | 2823 |
warning("Attempt to guard stack red zone failed."); |
2824 |
} |
|
2825 |
} |
|
2826 |
||
2827 |
void JavaThread::disable_stack_red_zone() { |
|
2828 |
// The base notation is from the stacks point of view, growing downward. |
|
2829 |
// We need to adjust it to work correctly with guard_memory() |
|
2830 |
assert(_stack_guard_state != stack_guard_unused, "must be using guard pages."); |
|
2831 |
address base = stack_red_zone_base() - stack_red_zone_size(); |
|
2832 |
if (!os::unguard_memory((char *)base, stack_red_zone_size())) { |
|
2833 |
warning("Attempt to unguard stack red zone failed."); |
|
2834 |
} |
|
2835 |
} |
|
2836 |
||
2837 |
void JavaThread::frames_do(void f(frame*, const RegisterMap* map)) { |
|
2838 |
// ignore is there is no stack |
|
2839 |
if (!has_last_Java_frame()) return; |
|
2840 |
// traverse the stack frames. Starts from top frame. |
|
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
2841 |
for (StackFrameStream fst(this); !fst.is_done(); fst.next()) { |
1 | 2842 |
frame* fr = fst.current(); |
2843 |
f(fr, fst.register_map()); |
|
2844 |
} |
|
2845 |
} |
|
2846 |
||
2847 |
||
2848 |
#ifndef PRODUCT |
|
2849 |
// Deoptimization |
|
2850 |
// Function for testing deoptimization |
|
2851 |
void JavaThread::deoptimize() { |
|
2852 |
// BiasedLocking needs an updated RegisterMap for the revoke monitors pass |
|
2853 |
StackFrameStream fst(this, UseBiasedLocking); |
|
2854 |
bool deopt = false; // Dump stack only if a deopt actually happens. |
|
2855 |
bool only_at = strlen(DeoptimizeOnlyAt) > 0; |
|
2856 |
// Iterate over all frames in the thread and deoptimize |
|
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
2857 |
for (; !fst.is_done(); fst.next()) { |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
2858 |
if (fst.current()->can_be_deoptimized()) { |
1 | 2859 |
|
2860 |
if (only_at) { |
|
2861 |
// Deoptimize only at particular bcis. DeoptimizeOnlyAt |
|
2862 |
// consists of comma or carriage return separated numbers so |
|
2863 |
// search for the current bci in that string. |
|
2864 |
address pc = fst.current()->pc(); |
|
2865 |
nmethod* nm = (nmethod*) fst.current()->cb(); |
|
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
2866 |
ScopeDesc* sd = nm->scope_desc_at(pc); |
1 | 2867 |
char buffer[8]; |
2868 |
jio_snprintf(buffer, sizeof(buffer), "%d", sd->bci()); |
|
2869 |
size_t len = strlen(buffer); |
|
2870 |
const char * found = strstr(DeoptimizeOnlyAt, buffer); |
|
2871 |
while (found != NULL) { |
|
2872 |
if ((found[len] == ',' || found[len] == '\n' || found[len] == '\0') && |
|
2873 |
(found == DeoptimizeOnlyAt || found[-1] == ',' || found[-1] == '\n')) { |
|
2874 |
// Check that the bci found is bracketed by terminators. |
|
2875 |
break; |
|
2876 |
} |
|
2877 |
found = strstr(found + 1, buffer); |
|
2878 |
} |
|
2879 |
if (!found) { |
|
2880 |
continue; |
|
2881 |
} |
|
2882 |
} |
|
2883 |
||
2884 |
if (DebugDeoptimization && !deopt) { |
|
2885 |
deopt = true; // One-time only print before deopt |
|
2886 |
tty->print_cr("[BEFORE Deoptimization]"); |
|
2887 |
trace_frames(); |
|
2888 |
trace_stack(); |
|
2889 |
} |
|
2890 |
Deoptimization::deoptimize(this, *fst.current(), fst.register_map()); |
|
2891 |
} |
|
2892 |
} |
|
2893 |
||
2894 |
if (DebugDeoptimization && deopt) { |
|
2895 |
tty->print_cr("[AFTER Deoptimization]"); |
|
2896 |
trace_frames(); |
|
2897 |
} |
|
2898 |
} |
|
2899 |
||
2900 |
||
2901 |
// Make zombies |
|
2902 |
void JavaThread::make_zombies() { |
|
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
2903 |
for (StackFrameStream fst(this); !fst.is_done(); fst.next()) { |
1 | 2904 |
if (fst.current()->can_be_deoptimized()) { |
2905 |
// it is a Java nmethod |
|
2906 |
nmethod* nm = CodeCache::find_nmethod(fst.current()->pc()); |
|
2907 |
nm->make_not_entrant(); |
|
2908 |
} |
|
2909 |
} |
|
2910 |
} |
|
2911 |
#endif // PRODUCT |
|
2912 |
||
2913 |
||
58226 | 2914 |
void JavaThread::deoptimize_marked_methods() { |
1 | 2915 |
if (!has_last_Java_frame()) return; |
2916 |
// BiasedLocking needs an updated RegisterMap for the revoke monitors pass |
|
2917 |
StackFrameStream fst(this, UseBiasedLocking); |
|
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
2918 |
for (; !fst.is_done(); fst.next()) { |
1 | 2919 |
if (fst.current()->should_be_deoptimized()) { |
55479
80b27dc96ca3
8226699: [BACKOUT] JDK-8221734 Deoptimize with handshakes
dcubed
parents:
55206
diff
changeset
|
2920 |
Deoptimization::deoptimize(this, *fst.current(), fst.register_map()); |
1 | 2921 |
} |
2922 |
} |
|
2923 |
} |
|
2924 |
||
4489
514173c9a0c2
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
4485
diff
changeset
|
2925 |
// If the caller is a NamedThread, then remember, in the current scope, |
514173c9a0c2
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
4485
diff
changeset
|
2926 |
// the given JavaThread in its _processed_thread field. |
514173c9a0c2
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
4485
diff
changeset
|
2927 |
class RememberProcessedThread: public StackObj { |
514173c9a0c2
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
4485
diff
changeset
|
2928 |
NamedThread* _cur_thr; |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
2929 |
public: |
4489
514173c9a0c2
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
4485
diff
changeset
|
2930 |
RememberProcessedThread(JavaThread* jthr) { |
514173c9a0c2
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
4485
diff
changeset
|
2931 |
Thread* thread = Thread::current(); |
514173c9a0c2
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
4485
diff
changeset
|
2932 |
if (thread->is_Named_thread()) { |
514173c9a0c2
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
4485
diff
changeset
|
2933 |
_cur_thr = (NamedThread *)thread; |
514173c9a0c2
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
4485
diff
changeset
|
2934 |
_cur_thr->set_processed_thread(jthr); |
514173c9a0c2
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
4485
diff
changeset
|
2935 |
} else { |
514173c9a0c2
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
4485
diff
changeset
|
2936 |
_cur_thr = NULL; |
514173c9a0c2
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
4485
diff
changeset
|
2937 |
} |
514173c9a0c2
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
4485
diff
changeset
|
2938 |
} |
514173c9a0c2
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
4485
diff
changeset
|
2939 |
|
514173c9a0c2
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
4485
diff
changeset
|
2940 |
~RememberProcessedThread() { |
514173c9a0c2
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
4485
diff
changeset
|
2941 |
if (_cur_thr) { |
514173c9a0c2
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
4485
diff
changeset
|
2942 |
_cur_thr->set_processed_thread(NULL); |
514173c9a0c2
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
4485
diff
changeset
|
2943 |
} |
514173c9a0c2
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
4485
diff
changeset
|
2944 |
} |
514173c9a0c2
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
4485
diff
changeset
|
2945 |
}; |
1 | 2946 |
|
38074
8475fdc6dcc3
8154580: Save mirror in interpreter frame to enable cleanups of CLDClosure
coleenp
parents:
37477
diff
changeset
|
2947 |
void JavaThread::oops_do(OopClosure* f, CodeBlobClosure* cf) { |
4637 | 2948 |
// Verify that the deferred card marks have been flushed. |
2949 |
assert(deferred_card_mark().is_empty(), "Should be empty during GC"); |
|
4030
4c471254865e
6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning
ysr
parents:
3916
diff
changeset
|
2950 |
|
1 | 2951 |
// Traverse the GCHandles |
38074
8475fdc6dcc3
8154580: Save mirror in interpreter frame to enable cleanups of CLDClosure
coleenp
parents:
37477
diff
changeset
|
2952 |
Thread::oops_do(f, cf); |
1 | 2953 |
|
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
2954 |
assert((!has_last_Java_frame() && java_call_counter() == 0) || |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
2955 |
(has_last_Java_frame() && java_call_counter() > 0), "wrong java_sp info!"); |
1 | 2956 |
|
2957 |
if (has_last_Java_frame()) { |
|
4489
514173c9a0c2
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
4485
diff
changeset
|
2958 |
// Record JavaThread to GC thread |
514173c9a0c2
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
4485
diff
changeset
|
2959 |
RememberProcessedThread rpt(this); |
1 | 2960 |
|
2961 |
// traverse the registered growable array |
|
2962 |
if (_array_for_gc != NULL) { |
|
2963 |
for (int index = 0; index < _array_for_gc->length(); index++) { |
|
2964 |
f->do_oop(_array_for_gc->adr_at(index)); |
|
2965 |
} |
|
2966 |
} |
|
2967 |
||
2968 |
// Traverse the monitor chunks |
|
2969 |
for (MonitorChunk* chunk = monitor_chunks(); chunk != NULL; chunk = chunk->next()) { |
|
2970 |
chunk->oops_do(f); |
|
2971 |
} |
|
2972 |
||
2973 |
// Traverse the execution stack |
|
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
2974 |
for (StackFrameStream fst(this); !fst.is_done(); fst.next()) { |
38074
8475fdc6dcc3
8154580: Save mirror in interpreter frame to enable cleanups of CLDClosure
coleenp
parents:
37477
diff
changeset
|
2975 |
fst.current()->oops_do(f, cf, fst.register_map()); |
1 | 2976 |
} |
2977 |
} |
|
2978 |
||
2979 |
assert(vframe_array_head() == NULL, "deopt in progress at a safepoint!"); |
|
2980 |
// If we have deferred set_locals there might be oops waiting to be |
|
2981 |
// written |
|
2982 |
GrowableArray<jvmtiDeferredLocalVariableSet*>* list = deferred_locals(); |
|
2983 |
if (list != NULL) { |
|
2984 |
for (int i = 0; i < list->length(); i++) { |
|
2985 |
list->at(i)->oops_do(f); |
|
2986 |
} |
|
2987 |
} |
|
2988 |
||
2989 |
// Traverse instance variables at the end since the GC may be moving things |
|
2990 |
// around using this function |
|
2991 |
f->do_oop((oop*) &_threadObj); |
|
2992 |
f->do_oop((oop*) &_vm_result); |
|
2993 |
f->do_oop((oop*) &_exception_oop); |
|
2994 |
f->do_oop((oop*) &_pending_async_exception); |
|
2995 |
||
2996 |
if (jvmti_thread_state() != NULL) { |
|
2997 |
jvmti_thread_state()->oops_do(f); |
|
2998 |
} |
|
2999 |
} |
|
3000 |
||
54278 | 3001 |
#ifdef ASSERT |
3002 |
void JavaThread::verify_states_for_handshake() { |
|
3003 |
// This checks that the thread has a correct frame state during a handshake. |
|
3004 |
assert((!has_last_Java_frame() && java_call_counter() == 0) || |
|
3005 |
(has_last_Java_frame() && java_call_counter() > 0), |
|
3006 |
"unexpected frame info: has_last_frame=%d, java_call_counter=%d", |
|
3007 |
has_last_Java_frame(), java_call_counter()); |
|
3008 |
} |
|
3009 |
#endif |
|
3010 |
||
3908
24b55ad4c228
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
3261
diff
changeset
|
3011 |
void JavaThread::nmethods_do(CodeBlobClosure* cf) { |
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
3012 |
assert((!has_last_Java_frame() && java_call_counter() == 0) || |
54278 | 3013 |
(has_last_Java_frame() && java_call_counter() > 0), |
3014 |
"unexpected frame info: has_last_frame=%d, java_call_counter=%d", |
|
3015 |
has_last_Java_frame(), java_call_counter()); |
|
1 | 3016 |
|
3017 |
if (has_last_Java_frame()) { |
|
3018 |
// Traverse the execution stack |
|
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
3019 |
for (StackFrameStream fst(this); !fst.is_done(); fst.next()) { |
3908
24b55ad4c228
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
3261
diff
changeset
|
3020 |
fst.current()->nmethods_do(cf); |
1 | 3021 |
} |
3022 |
} |
|
3023 |
} |
|
3024 |
||
54150
5529640c5f67
8220512: Deoptimize redefinition functions that have dirty ICs
coleenp
parents:
54015
diff
changeset
|
3025 |
void JavaThread::metadata_do(MetadataClosure* f) { |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
3026 |
if (has_last_Java_frame()) { |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
3027 |
// Traverse the execution stack to call f() on the methods in the stack |
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
3028 |
for (StackFrameStream fst(this); !fst.is_done(); fst.next()) { |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
3029 |
fst.current()->metadata_do(f); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
3030 |
} |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
3031 |
} else if (is_Compiler_thread()) { |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
3032 |
// need to walk ciMetadata in current compile tasks to keep alive. |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
3033 |
CompilerThread* ct = (CompilerThread*)this; |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
3034 |
if (ct->env() != NULL) { |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
3035 |
ct->env()->metadata_do(f); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
3036 |
} |
48428 | 3037 |
CompileTask* task = ct->task(); |
3038 |
if (task != NULL) { |
|
3039 |
task->metadata_do(f); |
|
31981
9caa094a485f
8082782: vm crash on StressRedefineWithoutBytecodeCorruption fails with assert(((Metadata*)obj)->is_valid()) failed: obj is valid
coleenp
parents:
31782
diff
changeset
|
3040 |
} |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
3041 |
} |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
3042 |
} |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
3043 |
|
1 | 3044 |
// Printing |
3045 |
const char* _get_thread_state_name(JavaThreadState _thread_state) { |
|
3046 |
switch (_thread_state) { |
|
3047 |
case _thread_uninitialized: return "_thread_uninitialized"; |
|
3048 |
case _thread_new: return "_thread_new"; |
|
3049 |
case _thread_new_trans: return "_thread_new_trans"; |
|
3050 |
case _thread_in_native: return "_thread_in_native"; |
|
3051 |
case _thread_in_native_trans: return "_thread_in_native_trans"; |
|
3052 |
case _thread_in_vm: return "_thread_in_vm"; |
|
3053 |
case _thread_in_vm_trans: return "_thread_in_vm_trans"; |
|
3054 |
case _thread_in_Java: return "_thread_in_Java"; |
|
3055 |
case _thread_in_Java_trans: return "_thread_in_Java_trans"; |
|
3056 |
case _thread_blocked: return "_thread_blocked"; |
|
3057 |
case _thread_blocked_trans: return "_thread_blocked_trans"; |
|
3058 |
default: return "unknown thread state"; |
|
3059 |
} |
|
3060 |
} |
|
3061 |
||
3062 |
#ifndef PRODUCT |
|
3063 |
void JavaThread::print_thread_state_on(outputStream *st) const { |
|
3064 |
st->print_cr(" JavaThread state: %s", _get_thread_state_name(_thread_state)); |
|
3065 |
}; |
|
3066 |
#endif // PRODUCT |
|
3067 |
||
3068 |
// Called by Threads::print() for VM_PrintThreads operation |
|
50785
d1b24f2ceca5
8200720: Print additional information in thread dump (times, allocated bytes etc.)
ghaug
parents:
50626
diff
changeset
|
3069 |
void JavaThread::print_on(outputStream *st, bool print_extended_info) const { |
37227
8c40b5b4e525
8151442: jstack doesn't close quotation marks properly with threads' name greater than 1996 characters
csahu
parents:
37179
diff
changeset
|
3070 |
st->print_raw("\""); |
8c40b5b4e525
8151442: jstack doesn't close quotation marks properly with threads' name greater than 1996 characters
csahu
parents:
37179
diff
changeset
|
3071 |
st->print_raw(get_thread_name()); |
8c40b5b4e525
8151442: jstack doesn't close quotation marks properly with threads' name greater than 1996 characters
csahu
parents:
37179
diff
changeset
|
3072 |
st->print_raw("\" "); |
1 | 3073 |
oop thread_oop = threadObj(); |
13857 | 3074 |
if (thread_oop != NULL) { |
46630
75aa3e39d02c
8182299: Enable disabled clang warnings, build on OSX 10 + Xcode 8
jwilhelm
parents:
46625
diff
changeset
|
3075 |
st->print("#" INT64_FORMAT " ", (int64_t)java_lang_Thread::thread_id(thread_oop)); |
13857 | 3076 |
if (java_lang_Thread::is_daemon(thread_oop)) st->print("daemon "); |
3077 |
st->print("prio=%d ", java_lang_Thread::priority(thread_oop)); |
|
3078 |
} |
|
50785
d1b24f2ceca5
8200720: Print additional information in thread dump (times, allocated bytes etc.)
ghaug
parents:
50626
diff
changeset
|
3079 |
Thread::print_on(st, print_extended_info); |
1 | 3080 |
// print guess for valid stack memory region (assume 4K pages); helps lock debugging |
2526
39a58a50be35
6699669: Hotspot server leaves synchronized block with monitor in bad state
xlu
parents:
2336
diff
changeset
|
3081 |
st->print_cr("[" INTPTR_FORMAT "]", (intptr_t)last_Java_sp() & ~right_n_bits(12)); |
25057 | 3082 |
if (thread_oop != NULL) { |
1 | 3083 |
st->print_cr(" java.lang.Thread.State: %s", java_lang_Thread::thread_status_name(thread_oop)); |
3084 |
} |
|
3085 |
#ifndef PRODUCT |
|
3086 |
_safepoint_state->print_on(st); |
|
3087 |
#endif // PRODUCT |
|
35825
7c7652ee137b
8063112: Compiler diagnostic commands should have locking instead of safepoint
neliasso
parents:
35495
diff
changeset
|
3088 |
if (is_Compiler_thread()) { |
48428 | 3089 |
CompileTask *task = ((CompilerThread*)this)->task(); |
3090 |
if (task != NULL) { |
|
35825
7c7652ee137b
8063112: Compiler diagnostic commands should have locking instead of safepoint
neliasso
parents:
35495
diff
changeset
|
3091 |
st->print(" Compiling: "); |
48428 | 3092 |
task->print(st, NULL, true, false); |
35825
7c7652ee137b
8063112: Compiler diagnostic commands should have locking instead of safepoint
neliasso
parents:
35495
diff
changeset
|
3093 |
} else { |
7c7652ee137b
8063112: Compiler diagnostic commands should have locking instead of safepoint
neliasso
parents:
35495
diff
changeset
|
3094 |
st->print(" No compile task"); |
7c7652ee137b
8063112: Compiler diagnostic commands should have locking instead of safepoint
neliasso
parents:
35495
diff
changeset
|
3095 |
} |
7c7652ee137b
8063112: Compiler diagnostic commands should have locking instead of safepoint
neliasso
parents:
35495
diff
changeset
|
3096 |
st->cr(); |
7c7652ee137b
8063112: Compiler diagnostic commands should have locking instead of safepoint
neliasso
parents:
35495
diff
changeset
|
3097 |
} |
7c7652ee137b
8063112: Compiler diagnostic commands should have locking instead of safepoint
neliasso
parents:
35495
diff
changeset
|
3098 |
} |
7c7652ee137b
8063112: Compiler diagnostic commands should have locking instead of safepoint
neliasso
parents:
35495
diff
changeset
|
3099 |
|
54807 | 3100 |
void JavaThread::print() const { print_on(tty); } |
3101 |
||
35825
7c7652ee137b
8063112: Compiler diagnostic commands should have locking instead of safepoint
neliasso
parents:
35495
diff
changeset
|
3102 |
void JavaThread::print_name_on_error(outputStream* st, char *buf, int buflen) const { |
7c7652ee137b
8063112: Compiler diagnostic commands should have locking instead of safepoint
neliasso
parents:
35495
diff
changeset
|
3103 |
st->print("%s", get_thread_name_string(buf, buflen)); |
1 | 3104 |
} |
3105 |
||
3106 |
// Called by fatal error handler. The difference between this and |
|
3107 |
// JavaThread::print() is that we can't grab lock or allocate memory. |
|
3108 |
void JavaThread::print_on_error(outputStream* st, char *buf, int buflen) const { |
|
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
3109 |
st->print("JavaThread \"%s\"", get_thread_name_string(buf, buflen)); |
1 | 3110 |
oop thread_obj = threadObj(); |
3111 |
if (thread_obj != NULL) { |
|
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
3112 |
if (java_lang_Thread::is_daemon(thread_obj)) st->print(" daemon"); |
1 | 3113 |
} |
3114 |
st->print(" ["); |
|
3115 |
st->print("%s", _get_thread_state_name(_thread_state)); |
|
3116 |
if (osthread()) { |
|
3117 |
st->print(", id=%d", osthread()->thread_id()); |
|
3118 |
} |
|
3119 |
st->print(", stack(" PTR_FORMAT "," PTR_FORMAT ")", |
|
35201
996db89f378e
8139864: Improve handling of stack protection zones.
goetz
parents:
35071
diff
changeset
|
3120 |
p2i(stack_end()), p2i(stack_base())); |
1 | 3121 |
st->print("]"); |
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
3122 |
|
49956
a87f2e7a527c
8191798: redo nested ThreadsListHandle to drop Threads_lock
dcubed
parents:
49902
diff
changeset
|
3123 |
ThreadsSMRSupport::print_info_on(this, st); |
1 | 3124 |
return; |
3125 |
} |
|
3126 |
||
3127 |
// Verification |
|
3128 |
||
3129 |
static void frame_verify(frame* f, const RegisterMap *map) { f->verify(map); } |
|
3130 |
||
3131 |
void JavaThread::verify() { |
|
3132 |
// Verify oops in the thread. |
|
38074
8475fdc6dcc3
8154580: Save mirror in interpreter frame to enable cleanups of CLDClosure
coleenp
parents:
37477
diff
changeset
|
3133 |
oops_do(&VerifyOopClosure::verify_oop, NULL); |
1 | 3134 |
|
3135 |
// Verify the stack frames. |
|
3136 |
frames_do(frame_verify); |
|
3137 |
} |
|
3138 |
||
3139 |
// CR 6300358 (sub-CR 2137150) |
|
3140 |
// Most callers of this method assume that it can't return NULL but a |
|
3141 |
// thread may not have a name whilst it is in the process of attaching to |
|
3142 |
// the VM - see CR 6412693, and there are places where a JavaThread can be |
|
3143 |
// seen prior to having it's threadObj set (eg JNI attaching threads and |
|
3144 |
// if vm exit occurs during initialization). These cases can all be accounted |
|
3145 |
// for such that this method never returns NULL. |
|
3146 |
const char* JavaThread::get_thread_name() const { |
|
3147 |
#ifdef ASSERT |
|
3148 |
// early safepoints can hit while current thread does not yet have TLS |
|
3149 |
if (!SafepointSynchronize::is_at_safepoint()) { |
|
3150 |
Thread *cur = Thread::current(); |
|
3151 |
if (!(cur->is_Java_thread() && cur == this)) { |
|
3152 |
// Current JavaThreads are allowed to get their own name without |
|
3153 |
// the Threads_lock. |
|
3154 |
assert_locked_or_safepoint(Threads_lock); |
|
3155 |
} |
|
3156 |
} |
|
3157 |
#endif // ASSERT |
|
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
3158 |
return get_thread_name_string(); |
1 | 3159 |
} |
3160 |
||
3161 |
// Returns a non-NULL representation of this thread's name, or a suitable |
|
3162 |
// descriptive string if there is no set name |
|
3163 |
const char* JavaThread::get_thread_name_string(char* buf, int buflen) const { |
|
3164 |
const char* name_str; |
|
3165 |
oop thread_obj = threadObj(); |
|
3166 |
if (thread_obj != NULL) { |
|
27654 | 3167 |
oop name = java_lang_Thread::name(thread_obj); |
1 | 3168 |
if (name != NULL) { |
3169 |
if (buf == NULL) { |
|
27654 | 3170 |
name_str = java_lang_String::as_utf8_string(name); |
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
3171 |
} else { |
27654 | 3172 |
name_str = java_lang_String::as_utf8_string(name, buf, buflen); |
1 | 3173 |
} |
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
3174 |
} else if (is_attaching_via_jni()) { // workaround for 6412693 - see 6404306 |
1 | 3175 |
name_str = "<no-name - thread is attaching>"; |
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
3176 |
} else { |
1 | 3177 |
name_str = Thread::name(); |
3178 |
} |
|
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
3179 |
} else { |
1 | 3180 |
name_str = Thread::name(); |
3181 |
} |
|
3182 |
assert(name_str != NULL, "unexpected NULL thread name"); |
|
3183 |
return name_str; |
|
3184 |
} |
|
3185 |
||
3186 |
void JavaThread::prepare(jobject jni_thread, ThreadPriority prio) { |
|
3187 |
||
3188 |
assert(Threads_lock->owner() == Thread::current(), "must have threads lock"); |
|
57758 | 3189 |
assert(NoPriority <= prio && prio <= MaxPriority, "sanity check"); |
1 | 3190 |
// Link Java Thread object <-> C++ Thread |
3191 |
||
3192 |
// Get the C++ thread object (an oop) from the JNI handle (a jthread) |
|
3193 |
// and put it into a new Handle. The Handle "thread_oop" can then |
|
3194 |
// be used to pass the C++ thread object to other methods. |
|
3195 |
||
3196 |
// Set the Java level thread object (jthread) field of the |
|
3197 |
// new thread (a JavaThread *) to C++ thread object using the |
|
3198 |
// "thread_oop" handle. |
|
3199 |
||
3200 |
// Set the thread field (a JavaThread *) of the |
|
3201 |
// oop representing the java_lang_Thread to the new thread (a JavaThread *). |
|
3202 |
||
3203 |
Handle thread_oop(Thread::current(), |
|
3204 |
JNIHandles::resolve_non_null(jni_thread)); |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
3205 |
assert(InstanceKlass::cast(thread_oop->klass())->is_linked(), |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
3206 |
"must be initialized"); |
1 | 3207 |
set_threadObj(thread_oop()); |
3208 |
java_lang_Thread::set_thread(thread_oop(), this); |
|
3209 |
||
3210 |
if (prio == NoPriority) { |
|
3211 |
prio = java_lang_Thread::priority(thread_oop()); |
|
3212 |
assert(prio != NoPriority, "A valid priority should be present"); |
|
3213 |
} |
|
3214 |
||
3215 |
// Push the Java priority down to the native thread; needs Threads_lock |
|
3216 |
Thread::set_priority(this, prio); |
|
3217 |
||
3218 |
// Add the new thread to the Threads list and set it in motion. |
|
3219 |
// We must have threads lock in order to call Threads::add. |
|
3220 |
// It is crucial that we do not block before the thread is |
|
3221 |
// added to the Threads list for if a GC happens, then the java_thread oop |
|
3222 |
// will not be visited by GC. |
|
3223 |
Threads::add(this); |
|
3224 |
} |
|
3225 |
||
3226 |
oop JavaThread::current_park_blocker() { |
|
3227 |
// Support for JSR-166 locks |
|
3228 |
oop thread_oop = threadObj(); |
|
54795
fd08f5a976e6
8189208: Cleanup ancient argument processing code
gziemski
parents:
54732
diff
changeset
|
3229 |
if (thread_oop != NULL) { |
1 | 3230 |
return java_lang_Thread::park_blocker(thread_oop); |
3231 |
} |
|
3232 |
return NULL; |
|
3233 |
} |
|
3234 |
||
3235 |
||
3236 |
void JavaThread::print_stack_on(outputStream* st) { |
|
3237 |
if (!has_last_Java_frame()) return; |
|
3238 |
ResourceMark rm; |
|
3239 |
HandleMark hm; |
|
3240 |
||
3241 |
RegisterMap reg_map(this); |
|
3242 |
vframe* start_vf = last_java_vframe(®_map); |
|
3243 |
int count = 0; |
|
48823
99c973b56994
7179701: MaxJavaStackTraceDepth of zero is not handled correctly/consistently in the VM
coleenp
parents:
48490
diff
changeset
|
3244 |
for (vframe* f = start_vf; f != NULL; f = f->sender()) { |
1 | 3245 |
if (f->is_java_frame()) { |
3246 |
javaVFrame* jvf = javaVFrame::cast(f); |
|
3247 |
java_lang_Throwable::print_stack_element(st, jvf->method(), jvf->bci()); |
|
3248 |
||
3249 |
// Print out lock information |
|
3250 |
if (JavaMonitorsInStackTrace) { |
|
3251 |
jvf->print_lock_info_on(st, count); |
|
3252 |
} |
|
3253 |
} else { |
|
3254 |
// Ignore non-Java frames |
|
3255 |
} |
|
3256 |
||
48823
99c973b56994
7179701: MaxJavaStackTraceDepth of zero is not handled correctly/consistently in the VM
coleenp
parents:
48490
diff
changeset
|
3257 |
// Bail-out case for too deep stacks if MaxJavaStackTraceDepth > 0 |
1 | 3258 |
count++; |
48823
99c973b56994
7179701: MaxJavaStackTraceDepth of zero is not handled correctly/consistently in the VM
coleenp
parents:
48490
diff
changeset
|
3259 |
if (MaxJavaStackTraceDepth > 0 && MaxJavaStackTraceDepth == count) return; |
1 | 3260 |
} |
3261 |
} |
|
3262 |
||
3263 |
||
3264 |
// JVMTI PopFrame support |
|
3265 |
void JavaThread::popframe_preserve_args(ByteSize size_in_bytes, void* start) { |
|
3266 |
assert(_popframe_preserved_args == NULL, "should not wipe out old PopFrame preserved arguments"); |
|
3267 |
if (in_bytes(size_in_bytes) != 0) { |
|
13195 | 3268 |
_popframe_preserved_args = NEW_C_HEAP_ARRAY(char, in_bytes(size_in_bytes), mtThread); |
1 | 3269 |
_popframe_preserved_args_size = in_bytes(size_in_bytes); |
5883
8dc4bdc132d5
6730276: JDI_REGRESSION tests fail with "Error: count must be non-zero" error on x86
kvn
parents:
5707
diff
changeset
|
3270 |
Copy::conjoint_jbytes(start, _popframe_preserved_args, _popframe_preserved_args_size); |
1 | 3271 |
} |
3272 |
} |
|
3273 |
||
3274 |
void* JavaThread::popframe_preserved_args() { |
|
3275 |
return _popframe_preserved_args; |
|
3276 |
} |
|
3277 |
||
3278 |
ByteSize JavaThread::popframe_preserved_args_size() { |
|
3279 |
return in_ByteSize(_popframe_preserved_args_size); |
|
3280 |
} |
|
3281 |
||
3282 |
WordSize JavaThread::popframe_preserved_args_size_in_words() { |
|
3283 |
int sz = in_bytes(popframe_preserved_args_size()); |
|
3284 |
assert(sz % wordSize == 0, "argument size must be multiple of wordSize"); |
|
3285 |
return in_WordSize(sz / wordSize); |
|
3286 |
} |
|
3287 |
||
3288 |
void JavaThread::popframe_free_preserved_args() { |
|
3289 |
assert(_popframe_preserved_args != NULL, "should not free PopFrame preserved arguments twice"); |
|
58084
cddef3bde924
8230398: Remove NULL checks before FREE_C_HEAP_ARRAY
lkorinth
parents:
58083
diff
changeset
|
3290 |
FREE_C_HEAP_ARRAY(char, (char*)_popframe_preserved_args); |
1 | 3291 |
_popframe_preserved_args = NULL; |
3292 |
_popframe_preserved_args_size = 0; |
|
3293 |
} |
|
3294 |
||
3295 |
#ifndef PRODUCT |
|
3296 |
||
3297 |
void JavaThread::trace_frames() { |
|
3298 |
tty->print_cr("[Describe stack]"); |
|
3299 |
int frame_no = 1; |
|
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
3300 |
for (StackFrameStream fst(this); !fst.is_done(); fst.next()) { |
1 | 3301 |
tty->print(" %d. ", frame_no++); |
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
3302 |
fst.current()->print_value_on(tty, this); |
1 | 3303 |
tty->cr(); |
3304 |
} |
|
3305 |
} |
|
3306 |
||
10517
f92c9ff3a15f
7051798: SA-JDI: NPE in Frame.addressOfStackSlot(Frame.java:244)
never
parents:
10508
diff
changeset
|
3307 |
class PrintAndVerifyOopClosure: public OopClosure { |
f92c9ff3a15f
7051798: SA-JDI: NPE in Frame.addressOfStackSlot(Frame.java:244)
never
parents:
10508
diff
changeset
|
3308 |
protected: |
f92c9ff3a15f
7051798: SA-JDI: NPE in Frame.addressOfStackSlot(Frame.java:244)
never
parents:
10508
diff
changeset
|
3309 |
template <class T> inline void do_oop_work(T* p) { |
49592
77fb0be7d19f
8199946: Move load/store and encode/decode out of oopDesc
stefank
parents:
49480
diff
changeset
|
3310 |
oop obj = RawAccess<>::oop_load(p); |
10517
f92c9ff3a15f
7051798: SA-JDI: NPE in Frame.addressOfStackSlot(Frame.java:244)
never
parents:
10508
diff
changeset
|
3311 |
if (obj == NULL) return; |
33148
68fa8b6c4340
8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents:
33107
diff
changeset
|
3312 |
tty->print(INTPTR_FORMAT ": ", p2i(p)); |
46968
9119841280f4
8160399: is_oop_or_null involves undefined behavior
coleenp
parents:
46742
diff
changeset
|
3313 |
if (oopDesc::is_oop_or_null(obj)) { |
10517
f92c9ff3a15f
7051798: SA-JDI: NPE in Frame.addressOfStackSlot(Frame.java:244)
never
parents:
10508
diff
changeset
|
3314 |
if (obj->is_objArray()) { |
33148
68fa8b6c4340
8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents:
33107
diff
changeset
|
3315 |
tty->print_cr("valid objArray: " INTPTR_FORMAT, p2i(obj)); |
10517
f92c9ff3a15f
7051798: SA-JDI: NPE in Frame.addressOfStackSlot(Frame.java:244)
never
parents:
10508
diff
changeset
|
3316 |
} else { |
f92c9ff3a15f
7051798: SA-JDI: NPE in Frame.addressOfStackSlot(Frame.java:244)
never
parents:
10508
diff
changeset
|
3317 |
obj->print(); |
f92c9ff3a15f
7051798: SA-JDI: NPE in Frame.addressOfStackSlot(Frame.java:244)
never
parents:
10508
diff
changeset
|
3318 |
} |
f92c9ff3a15f
7051798: SA-JDI: NPE in Frame.addressOfStackSlot(Frame.java:244)
never
parents:
10508
diff
changeset
|
3319 |
} else { |
33148
68fa8b6c4340
8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents:
33107
diff
changeset
|
3320 |
tty->print_cr("invalid oop: " INTPTR_FORMAT, p2i(obj)); |
10517
f92c9ff3a15f
7051798: SA-JDI: NPE in Frame.addressOfStackSlot(Frame.java:244)
never
parents:
10508
diff
changeset
|
3321 |
} |
f92c9ff3a15f
7051798: SA-JDI: NPE in Frame.addressOfStackSlot(Frame.java:244)
never
parents:
10508
diff
changeset
|
3322 |
tty->cr(); |
f92c9ff3a15f
7051798: SA-JDI: NPE in Frame.addressOfStackSlot(Frame.java:244)
never
parents:
10508
diff
changeset
|
3323 |
} |
f92c9ff3a15f
7051798: SA-JDI: NPE in Frame.addressOfStackSlot(Frame.java:244)
never
parents:
10508
diff
changeset
|
3324 |
public: |
f92c9ff3a15f
7051798: SA-JDI: NPE in Frame.addressOfStackSlot(Frame.java:244)
never
parents:
10508
diff
changeset
|
3325 |
virtual void do_oop(oop* p) { do_oop_work(p); } |
f92c9ff3a15f
7051798: SA-JDI: NPE in Frame.addressOfStackSlot(Frame.java:244)
never
parents:
10508
diff
changeset
|
3326 |
virtual void do_oop(narrowOop* p) { do_oop_work(p); } |
f92c9ff3a15f
7051798: SA-JDI: NPE in Frame.addressOfStackSlot(Frame.java:244)
never
parents:
10508
diff
changeset
|
3327 |
}; |
f92c9ff3a15f
7051798: SA-JDI: NPE in Frame.addressOfStackSlot(Frame.java:244)
never
parents:
10508
diff
changeset
|
3328 |
|
9946
b3d5b50e2289
7045513: JSR 292 inlining causes crashes in methodHandleWalk.cpp
never
parents:
9942
diff
changeset
|
3329 |
#ifdef ASSERT |
9437
9981851b4b8c
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents:
8883
diff
changeset
|
3330 |
// Print or validate the layout of stack frames |
9981851b4b8c
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents:
8883
diff
changeset
|
3331 |
void JavaThread::print_frame_layout(int depth, bool validate_only) { |
9981851b4b8c
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents:
8883
diff
changeset
|
3332 |
ResourceMark rm; |
9981851b4b8c
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents:
8883
diff
changeset
|
3333 |
PRESERVE_EXCEPTION_MARK; |
9981851b4b8c
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents:
8883
diff
changeset
|
3334 |
FrameValues values; |
9981851b4b8c
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents:
8883
diff
changeset
|
3335 |
int frame_no = 0; |
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
3336 |
for (StackFrameStream fst(this, false); !fst.is_done(); fst.next()) { |
9437
9981851b4b8c
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents:
8883
diff
changeset
|
3337 |
fst.current()->describe(values, ++frame_no); |
9981851b4b8c
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents:
8883
diff
changeset
|
3338 |
if (depth == frame_no) break; |
9981851b4b8c
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents:
8883
diff
changeset
|
3339 |
} |
9981851b4b8c
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents:
8883
diff
changeset
|
3340 |
if (validate_only) { |
9981851b4b8c
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents:
8883
diff
changeset
|
3341 |
values.validate(); |
9981851b4b8c
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents:
8883
diff
changeset
|
3342 |
} else { |
9981851b4b8c
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents:
8883
diff
changeset
|
3343 |
tty->print_cr("[Describe stack layout]"); |
10966
0c9ed2dfc6a2
7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
twisti
parents:
10740
diff
changeset
|
3344 |
values.print(this); |
9437
9981851b4b8c
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents:
8883
diff
changeset
|
3345 |
} |
9981851b4b8c
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents:
8883
diff
changeset
|
3346 |
} |
9946
b3d5b50e2289
7045513: JSR 292 inlining causes crashes in methodHandleWalk.cpp
never
parents:
9942
diff
changeset
|
3347 |
#endif |
9437
9981851b4b8c
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents:
8883
diff
changeset
|
3348 |
|
1 | 3349 |
void JavaThread::trace_stack_from(vframe* start_vf) { |
3350 |
ResourceMark rm; |
|
3351 |
int vframe_no = 1; |
|
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
3352 |
for (vframe* f = start_vf; f; f = f->sender()) { |
1 | 3353 |
if (f->is_java_frame()) { |
3354 |
javaVFrame::cast(f)->print_activation(vframe_no++); |
|
3355 |
} else { |
|
3356 |
f->print(); |
|
3357 |
} |
|
3358 |
if (vframe_no > StackPrintLimit) { |
|
3359 |
tty->print_cr("...<more frames>..."); |
|
3360 |
return; |
|
3361 |
} |
|
3362 |
} |
|
3363 |
} |
|
3364 |
||
3365 |
||
3366 |
void JavaThread::trace_stack() { |
|
3367 |
if (!has_last_Java_frame()) return; |
|
3368 |
ResourceMark rm; |
|
3369 |
HandleMark hm; |
|
3370 |
RegisterMap reg_map(this); |
|
3371 |
trace_stack_from(last_java_vframe(®_map)); |
|
3372 |
} |
|
3373 |
||
3374 |
||
3375 |
#endif // PRODUCT |
|
3376 |
||
3377 |
||
3378 |
javaVFrame* JavaThread::last_java_vframe(RegisterMap *reg_map) { |
|
3379 |
assert(reg_map != NULL, "a map must be given"); |
|
3380 |
frame f = last_frame(); |
|
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
3381 |
for (vframe* vf = vframe::new_vframe(&f, reg_map, this); vf; vf = vf->sender()) { |
1 | 3382 |
if (vf->is_java_frame()) return javaVFrame::cast(vf); |
3383 |
} |
|
3384 |
return NULL; |
|
3385 |
} |
|
3386 |
||
3387 |
||
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
3388 |
Klass* JavaThread::security_get_caller_class(int depth) { |
1 | 3389 |
vframeStream vfst(this); |
3390 |
vfst.security_get_caller_frame(depth); |
|
3391 |
if (!vfst.at_end()) { |
|
3392 |
return vfst.method()->method_holder(); |
|
3393 |
} |
|
3394 |
return NULL; |
|
3395 |
} |
|
3396 |
||
58095 | 3397 |
// java.lang.Thread.sleep support |
3398 |
// Returns true if sleep time elapsed as expected, and false |
|
3399 |
// if the thread was interrupted. |
|
3400 |
bool JavaThread::sleep(jlong millis) { |
|
3401 |
assert(this == Thread::current(), "thread consistency check"); |
|
3402 |
||
3403 |
ParkEvent * const slp = this->_SleepEvent; |
|
3404 |
// Because there can be races with thread interruption sending an unpark() |
|
3405 |
// to the event, we explicitly reset it here to avoid an immediate return. |
|
3406 |
// The actual interrupt state will be checked before we park(). |
|
3407 |
slp->reset(); |
|
3408 |
// Thread interruption establishes a happens-before ordering in the |
|
3409 |
// Java Memory Model, so we need to ensure we synchronize with the |
|
3410 |
// interrupt state. |
|
3411 |
OrderAccess::fence(); |
|
3412 |
||
3413 |
jlong prevtime = os::javaTimeNanos(); |
|
3414 |
||
3415 |
for (;;) { |
|
3416 |
// interruption has precedence over timing out |
|
58196
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
3417 |
if (this->is_interrupted(true)) { |
58095 | 3418 |
return false; |
3419 |
} |
|
3420 |
||
3421 |
if (millis <= 0) { |
|
3422 |
return true; |
|
3423 |
} |
|
3424 |
||
3425 |
{ |
|
3426 |
ThreadBlockInVM tbivm(this); |
|
3427 |
OSThreadWaitState osts(this->osthread(), false /* not Object.wait() */); |
|
3428 |
||
3429 |
this->set_suspend_equivalent(); |
|
3430 |
// cleared by handle_special_suspend_equivalent_condition() or |
|
3431 |
// java_suspend_self() via check_and_wait_while_suspended() |
|
3432 |
||
3433 |
slp->park(millis); |
|
3434 |
||
3435 |
// were we externally suspended while we were waiting? |
|
3436 |
this->check_and_wait_while_suspended(); |
|
3437 |
} |
|
3438 |
||
3439 |
// Update elapsed time tracking |
|
3440 |
jlong newtime = os::javaTimeNanos(); |
|
3441 |
if (newtime - prevtime < 0) { |
|
3442 |
// time moving backwards, should only happen if no monotonic clock |
|
3443 |
// not a guarantee() because JVM should not abort on kernel/glibc bugs |
|
3444 |
assert(!os::supports_monotonic_clock(), |
|
58196
cea6839598e8
8230424: Use platform independent code for Thread.interrupt support
dholmes
parents:
58124
diff
changeset
|
3445 |
"unexpected time moving backwards detected in JavaThread::sleep()"); |
58095 | 3446 |
} else { |
3447 |
millis -= (newtime - prevtime) / NANOSECS_PER_MILLISEC; |
|
3448 |
} |
|
3449 |
prevtime = newtime; |
|
3450 |
} |
|
3451 |
} |
|
3452 |
||
1 | 3453 |
static void compiler_thread_entry(JavaThread* thread, TRAPS) { |
3454 |
assert(thread->is_Compiler_thread(), "must be compiler thread"); |
|
3455 |
CompileBroker::compiler_thread_loop(); |
|
3456 |
} |
|
3457 |
||
27420
04e6f914cce1
8046809: vm/mlvm/meth/stress/compiler/deoptimize CodeCache is full.
anoll
parents:
27164
diff
changeset
|
3458 |
static void sweeper_thread_entry(JavaThread* thread, TRAPS) { |
04e6f914cce1
8046809: vm/mlvm/meth/stress/compiler/deoptimize CodeCache is full.
anoll
parents:
27164
diff
changeset
|
3459 |
NMethodSweeper::sweeper_loop(); |
04e6f914cce1
8046809: vm/mlvm/meth/stress/compiler/deoptimize CodeCache is full.
anoll
parents:
27164
diff
changeset
|
3460 |
} |
04e6f914cce1
8046809: vm/mlvm/meth/stress/compiler/deoptimize CodeCache is full.
anoll
parents:
27164
diff
changeset
|
3461 |
|
1 | 3462 |
// Create a CompilerThread |
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
3463 |
CompilerThread::CompilerThread(CompileQueue* queue, |
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
3464 |
CompilerCounters* counters) |
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
3465 |
: JavaThread(&compiler_thread_entry) { |
1 | 3466 |
_env = NULL; |
3467 |
_log = NULL; |
|
3468 |
_task = NULL; |
|
3469 |
_queue = queue; |
|
3470 |
_counters = counters; |
|
5707 | 3471 |
_buffer_blob = NULL; |
20707
b3b658c6d1f8
8023014: CodeSweeperSweepNoFlushTest.java fails with HS crash
anoll
parents:
20282
diff
changeset
|
3472 |
_compiler = NULL; |
1 | 3473 |
|
47600
5c8607bb3d2d
8187685: NMT: Tracking compiler memory usage of thread's resource area
zgu
parents:
47216
diff
changeset
|
3474 |
// Compiler uses resource area for compilation, let's bias it to mtCompiler |
5c8607bb3d2d
8187685: NMT: Tracking compiler memory usage of thread's resource area
zgu
parents:
47216
diff
changeset
|
3475 |
resource_area()->bias_to(mtCompiler); |
5c8607bb3d2d
8187685: NMT: Tracking compiler memory usage of thread's resource area
zgu
parents:
47216
diff
changeset
|
3476 |
|
1 | 3477 |
#ifndef PRODUCT |
3478 |
_ideal_graph_printer = NULL; |
|
3479 |
#endif |
|
3480 |
} |
|
3481 |
||
49848 | 3482 |
CompilerThread::~CompilerThread() { |
3483 |
// Delete objects which were allocated on heap. |
|
3484 |
delete _counters; |
|
3485 |
} |
|
3486 |
||
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
3487 |
bool CompilerThread::can_call_java() const { |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
3488 |
return _compiler != NULL && _compiler->is_jvmci(); |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
3489 |
} |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
3490 |
|
27420
04e6f914cce1
8046809: vm/mlvm/meth/stress/compiler/deoptimize CodeCache is full.
anoll
parents:
27164
diff
changeset
|
3491 |
// Create sweeper thread |
04e6f914cce1
8046809: vm/mlvm/meth/stress/compiler/deoptimize CodeCache is full.
anoll
parents:
27164
diff
changeset
|
3492 |
CodeCacheSweeperThread::CodeCacheSweeperThread() |
04e6f914cce1
8046809: vm/mlvm/meth/stress/compiler/deoptimize CodeCache is full.
anoll
parents:
27164
diff
changeset
|
3493 |
: JavaThread(&sweeper_thread_entry) { |
38133
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
37477
diff
changeset
|
3494 |
_scanned_compiled_method = NULL; |
27420
04e6f914cce1
8046809: vm/mlvm/meth/stress/compiler/deoptimize CodeCache is full.
anoll
parents:
27164
diff
changeset
|
3495 |
} |
37288
a31d47bbbdf6
8074553: Crash with assert(!is_unloaded()) failed: should not call follow on unloaded nmethod
thartmann
parents:
36616
diff
changeset
|
3496 |
|
38074
8475fdc6dcc3
8154580: Save mirror in interpreter frame to enable cleanups of CLDClosure
coleenp
parents:
37477
diff
changeset
|
3497 |
void CodeCacheSweeperThread::oops_do(OopClosure* f, CodeBlobClosure* cf) { |
8475fdc6dcc3
8154580: Save mirror in interpreter frame to enable cleanups of CLDClosure
coleenp
parents:
37477
diff
changeset
|
3498 |
JavaThread::oops_do(f, cf); |
38133
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
37477
diff
changeset
|
3499 |
if (_scanned_compiled_method != NULL && cf != NULL) { |
9942
2e86734ba620
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
9437
diff
changeset
|
3500 |
// Safepoints can occur when the sweeper is scanning an nmethod so |
2e86734ba620
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
9437
diff
changeset
|
3501 |
// process it here to make sure it isn't unloaded in the middle of |
2e86734ba620
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
9437
diff
changeset
|
3502 |
// a scan. |
38133
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
37477
diff
changeset
|
3503 |
cf->do_code_blob(_scanned_compiled_method); |
9942
2e86734ba620
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
9437
diff
changeset
|
3504 |
} |
2e86734ba620
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
9437
diff
changeset
|
3505 |
} |
1 | 3506 |
|
37288
a31d47bbbdf6
8074553: Crash with assert(!is_unloaded()) failed: should not call follow on unloaded nmethod
thartmann
parents:
36616
diff
changeset
|
3507 |
void CodeCacheSweeperThread::nmethods_do(CodeBlobClosure* cf) { |
a31d47bbbdf6
8074553: Crash with assert(!is_unloaded()) failed: should not call follow on unloaded nmethod
thartmann
parents:
36616
diff
changeset
|
3508 |
JavaThread::nmethods_do(cf); |
38133
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
37477
diff
changeset
|
3509 |
if (_scanned_compiled_method != NULL && cf != NULL) { |
37288
a31d47bbbdf6
8074553: Crash with assert(!is_unloaded()) failed: should not call follow on unloaded nmethod
thartmann
parents:
36616
diff
changeset
|
3510 |
// Safepoints can occur when the sweeper is scanning an nmethod so |
a31d47bbbdf6
8074553: Crash with assert(!is_unloaded()) failed: should not call follow on unloaded nmethod
thartmann
parents:
36616
diff
changeset
|
3511 |
// process it here to make sure it isn't unloaded in the middle of |
a31d47bbbdf6
8074553: Crash with assert(!is_unloaded()) failed: should not call follow on unloaded nmethod
thartmann
parents:
36616
diff
changeset
|
3512 |
// a scan. |
38133
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
37477
diff
changeset
|
3513 |
cf->do_code_blob(_scanned_compiled_method); |
37288
a31d47bbbdf6
8074553: Crash with assert(!is_unloaded()) failed: should not call follow on unloaded nmethod
thartmann
parents:
36616
diff
changeset
|
3514 |
} |
a31d47bbbdf6
8074553: Crash with assert(!is_unloaded()) failed: should not call follow on unloaded nmethod
thartmann
parents:
36616
diff
changeset
|
3515 |
} |
a31d47bbbdf6
8074553: Crash with assert(!is_unloaded()) failed: should not call follow on unloaded nmethod
thartmann
parents:
36616
diff
changeset
|
3516 |
|
20707
b3b658c6d1f8
8023014: CodeSweeperSweepNoFlushTest.java fails with HS crash
anoll
parents:
20282
diff
changeset
|
3517 |
|
1 | 3518 |
// ======= Threads ======== |
3519 |
||
3520 |
// The Threads class links together all active threads, and provides |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
3521 |
// operations over all threads. It is protected by the Threads_lock, |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
3522 |
// which is also used in other global contexts like safepointing. |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
3523 |
// ThreadsListHandles are used to safely perform operations on one |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
3524 |
// or more threads without the risk of the thread exiting during the |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
3525 |
// operation. |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
3526 |
// |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
3527 |
// Note: The Threads_lock is currently more widely used than we |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
3528 |
// would like. We are actively migrating Threads_lock uses to other |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
3529 |
// mechanisms in order to reduce Threads_lock contention. |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
3530 |
|
48312
2a1413298af0
8191789: migrate more Thread-SMR stuff from thread.[ch]pp -> threadSMR.[ch]pp
dcubed
parents:
48173
diff
changeset
|
3531 |
int Threads::_number_of_threads = 0; |
2a1413298af0
8191789: migrate more Thread-SMR stuff from thread.[ch]pp -> threadSMR.[ch]pp
dcubed
parents:
48173
diff
changeset
|
3532 |
int Threads::_number_of_non_daemon_threads = 0; |
2a1413298af0
8191789: migrate more Thread-SMR stuff from thread.[ch]pp -> threadSMR.[ch]pp
dcubed
parents:
48173
diff
changeset
|
3533 |
int Threads::_return_code = 0; |
54385
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54366
diff
changeset
|
3534 |
uintx Threads::_thread_claim_token = 1; // Never zero. |
48312
2a1413298af0
8191789: migrate more Thread-SMR stuff from thread.[ch]pp -> threadSMR.[ch]pp
dcubed
parents:
48173
diff
changeset
|
3535 |
size_t JavaThread::_stack_size_at_create = 0; |
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
3536 |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
3537 |
#ifdef ASSERT |
48312
2a1413298af0
8191789: migrate more Thread-SMR stuff from thread.[ch]pp -> threadSMR.[ch]pp
dcubed
parents:
48173
diff
changeset
|
3538 |
bool Threads::_vm_complete = false; |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
3539 |
#endif |
1 | 3540 |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
3541 |
static inline void *prefetch_and_load_ptr(void **addr, intx prefetch_interval) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
3542 |
Prefetch::read((void*)addr, prefetch_interval); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
3543 |
return *addr; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
3544 |
} |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
3545 |
|
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
3546 |
// Possibly the ugliest for loop the world has seen. C++ does not allow |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
3547 |
// multiple types in the declaration section of the for loop. In this case |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
3548 |
// we are only dealing with pointers and hence can cast them. It looks ugly |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
3549 |
// but macros are ugly and therefore it's fine to make things absurdly ugly. |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
3550 |
#define DO_JAVA_THREADS(LIST, X) \ |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
3551 |
for (JavaThread *MACRO_scan_interval = (JavaThread*)(uintptr_t)PrefetchScanIntervalInBytes, \ |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
3552 |
*MACRO_list = (JavaThread*)(LIST), \ |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
3553 |
**MACRO_end = ((JavaThread**)((ThreadsList*)MACRO_list)->threads()) + ((ThreadsList*)MACRO_list)->length(), \ |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
3554 |
**MACRO_current_p = (JavaThread**)((ThreadsList*)MACRO_list)->threads(), \ |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
3555 |
*X = (JavaThread*)prefetch_and_load_ptr((void**)MACRO_current_p, (intx)MACRO_scan_interval); \ |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
3556 |
MACRO_current_p != MACRO_end; \ |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
3557 |
MACRO_current_p++, \ |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
3558 |
X = (JavaThread*)prefetch_and_load_ptr((void**)MACRO_current_p, (intx)MACRO_scan_interval)) |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
3559 |
|
1 | 3560 |
// All JavaThreads |
48382
0997d6959851
8193135: get rid of redundant _smr_ prefix/infix in ThreadSMRSupport stuff
dcubed
parents:
48312
diff
changeset
|
3561 |
#define ALL_JAVA_THREADS(X) DO_JAVA_THREADS(ThreadsSMRSupport::get_java_thread_list(), X) |
1 | 3562 |
|
51548 | 3563 |
// All NonJavaThreads (i.e., every non-JavaThread in the system). |
49756
129d60b5dac7
8200374: Add ThreadsSMRSupport::verify_hazard_pointer_scanned() to verify threads_do().
dcubed
parents:
49752
diff
changeset
|
3564 |
void Threads::non_java_threads_do(ThreadClosure* tc) { |
57603
f9d9bed12d1a
8228630: Remove always true parameter to NoSafepointVerifier
coleenp
parents:
57559
diff
changeset
|
3565 |
NoSafepointVerifier nsv; |
51548 | 3566 |
for (NonJavaThread::Iterator njti; !njti.end(); njti.step()) { |
3567 |
tc->do_thread(njti.current()); |
|
3568 |
} |
|
1 | 3569 |
} |
3570 |
||
50058
f7e564cacfbc
8202649: Move the Parallel GC specific task creation functions out of Threads
stefank
parents:
49982
diff
changeset
|
3571 |
// All JavaThreads |
f7e564cacfbc
8202649: Move the Parallel GC specific task creation functions out of Threads
stefank
parents:
49982
diff
changeset
|
3572 |
void Threads::java_threads_do(ThreadClosure* tc) { |
49756
129d60b5dac7
8200374: Add ThreadsSMRSupport::verify_hazard_pointer_scanned() to verify threads_do().
dcubed
parents:
49752
diff
changeset
|
3573 |
assert_locked_or_safepoint(Threads_lock); |
129d60b5dac7
8200374: Add ThreadsSMRSupport::verify_hazard_pointer_scanned() to verify threads_do().
dcubed
parents:
49752
diff
changeset
|
3574 |
// ALL_JAVA_THREADS iterates through all JavaThreads. |
129d60b5dac7
8200374: Add ThreadsSMRSupport::verify_hazard_pointer_scanned() to verify threads_do().
dcubed
parents:
49752
diff
changeset
|
3575 |
ALL_JAVA_THREADS(p) { |
129d60b5dac7
8200374: Add ThreadsSMRSupport::verify_hazard_pointer_scanned() to verify threads_do().
dcubed
parents:
49752
diff
changeset
|
3576 |
tc->do_thread(p); |
129d60b5dac7
8200374: Add ThreadsSMRSupport::verify_hazard_pointer_scanned() to verify threads_do().
dcubed
parents:
49752
diff
changeset
|
3577 |
} |
50058
f7e564cacfbc
8202649: Move the Parallel GC specific task creation functions out of Threads
stefank
parents:
49982
diff
changeset
|
3578 |
} |
f7e564cacfbc
8202649: Move the Parallel GC specific task creation functions out of Threads
stefank
parents:
49982
diff
changeset
|
3579 |
|
f7e564cacfbc
8202649: Move the Parallel GC specific task creation functions out of Threads
stefank
parents:
49982
diff
changeset
|
3580 |
void Threads::java_threads_and_vm_thread_do(ThreadClosure* tc) { |
f7e564cacfbc
8202649: Move the Parallel GC specific task creation functions out of Threads
stefank
parents:
49982
diff
changeset
|
3581 |
assert_locked_or_safepoint(Threads_lock); |
f7e564cacfbc
8202649: Move the Parallel GC specific task creation functions out of Threads
stefank
parents:
49982
diff
changeset
|
3582 |
java_threads_do(tc); |
f7e564cacfbc
8202649: Move the Parallel GC specific task creation functions out of Threads
stefank
parents:
49982
diff
changeset
|
3583 |
tc->do_thread(VMThread::vm_thread()); |
f7e564cacfbc
8202649: Move the Parallel GC specific task creation functions out of Threads
stefank
parents:
49982
diff
changeset
|
3584 |
} |
f7e564cacfbc
8202649: Move the Parallel GC specific task creation functions out of Threads
stefank
parents:
49982
diff
changeset
|
3585 |
|
f7e564cacfbc
8202649: Move the Parallel GC specific task creation functions out of Threads
stefank
parents:
49982
diff
changeset
|
3586 |
// All JavaThreads + all non-JavaThreads (i.e., every thread in the system). |
f7e564cacfbc
8202649: Move the Parallel GC specific task creation functions out of Threads
stefank
parents:
49982
diff
changeset
|
3587 |
void Threads::threads_do(ThreadClosure* tc) { |
f7e564cacfbc
8202649: Move the Parallel GC specific task creation functions out of Threads
stefank
parents:
49982
diff
changeset
|
3588 |
assert_locked_or_safepoint(Threads_lock); |
f7e564cacfbc
8202649: Move the Parallel GC specific task creation functions out of Threads
stefank
parents:
49982
diff
changeset
|
3589 |
java_threads_do(tc); |
49756
129d60b5dac7
8200374: Add ThreadsSMRSupport::verify_hazard_pointer_scanned() to verify threads_do().
dcubed
parents:
49752
diff
changeset
|
3590 |
non_java_threads_do(tc); |
129d60b5dac7
8200374: Add ThreadsSMRSupport::verify_hazard_pointer_scanned() to verify threads_do().
dcubed
parents:
49752
diff
changeset
|
3591 |
} |
129d60b5dac7
8200374: Add ThreadsSMRSupport::verify_hazard_pointer_scanned() to verify threads_do().
dcubed
parents:
49752
diff
changeset
|
3592 |
|
47637
87141990dde5
8185580: Refactor Threads::possibly_parallel_oops_do() to use Threads::parallel_java_threads_do()
rkennke
parents:
47634
diff
changeset
|
3593 |
void Threads::possibly_parallel_threads_do(bool is_par, ThreadClosure* tc) { |
54385
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54366
diff
changeset
|
3594 |
uintx claim_token = Threads::thread_claim_token(); |
46702 | 3595 |
ALL_JAVA_THREADS(p) { |
54385
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54366
diff
changeset
|
3596 |
if (p->claim_threads_do(is_par, claim_token)) { |
46702 | 3597 |
tc->do_thread(p); |
3598 |
} |
|
3599 |
} |
|
46732
05423d4b10d2
8185273: Test8004741.java crashes with SIGSEGV in JDK10-hs nightly
dcubed
parents:
46702
diff
changeset
|
3600 |
VMThread* vmt = VMThread::vm_thread(); |
54385
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54366
diff
changeset
|
3601 |
if (vmt->claim_threads_do(is_par, claim_token)) { |
47637
87141990dde5
8185580: Refactor Threads::possibly_parallel_oops_do() to use Threads::parallel_java_threads_do()
rkennke
parents:
47634
diff
changeset
|
3602 |
tc->do_thread(vmt); |
87141990dde5
8185580: Refactor Threads::possibly_parallel_oops_do() to use Threads::parallel_java_threads_do()
rkennke
parents:
47634
diff
changeset
|
3603 |
} |
46702 | 3604 |
} |
3605 |
||
36508 | 3606 |
// The system initialization in the library has three phases. |
3607 |
// |
|
3608 |
// Phase 1: java.lang.System class initialization |
|
3609 |
// java.lang.System is a primordial class loaded and initialized |
|
3610 |
// by the VM early during startup. java.lang.System.<clinit> |
|
3611 |
// only does registerNatives and keeps the rest of the class |
|
3612 |
// initialization work later until thread initialization completes. |
|
3613 |
// |
|
3614 |
// System.initPhase1 initializes the system properties, the static |
|
3615 |
// fields in, out, and err. Set up java signal handlers, OS-specific |
|
3616 |
// system settings, and thread group of the main thread. |
|
3617 |
static void call_initPhase1(TRAPS) { |
|
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
46284
diff
changeset
|
3618 |
Klass* klass = SystemDictionary::resolve_or_fail(vmSymbols::java_lang_System(), true, CHECK); |
36508 | 3619 |
JavaValue result(T_VOID); |
3620 |
JavaCalls::call_static(&result, klass, vmSymbols::initPhase1_name(), |
|
3621 |
vmSymbols::void_method_signature(), CHECK); |
|
3622 |
} |
|
3623 |
||
3624 |
// Phase 2. Module system initialization |
|
3625 |
// This will initialize the module system. Only java.base classes |
|
3626 |
// can be loaded until phase 2 completes. |
|
3627 |
// |
|
3628 |
// Call System.initPhase2 after the compiler initialization and jsr292 |
|
3629 |
// classes get initialized because module initialization runs a lot of java |
|
3630 |
// code, that for performance reasons, should be compiled. Also, this will |
|
3631 |
// enable the startup code to use lambda and other language features in this |
|
3632 |
// phase and onward. |
|
3633 |
// |
|
3634 |
// After phase 2, The VM will begin search classes from -Xbootclasspath/a. |
|
3635 |
static void call_initPhase2(TRAPS) { |
|
46658
72c739e058d4
8184281: -Xlog:startuptime does not include call to initPhase2
hseigel
parents:
46644
diff
changeset
|
3636 |
TraceTime timer("Initialize module system", TRACETIME_LOG(Info, startuptime)); |
39292
8ef14e411eed
8153394: Add Unified Logging to make it easy to trace time taken in initPhase2
rprotacio
parents:
38697
diff
changeset
|
3637 |
|
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
46284
diff
changeset
|
3638 |
Klass* klass = SystemDictionary::resolve_or_fail(vmSymbols::java_lang_System(), true, CHECK); |
36508 | 3639 |
|
44326
6c59cca7ff07
8174823: Module system implementation refresh (3/2017)
alanb
parents:
42664
diff
changeset
|
3640 |
JavaValue result(T_INT); |
6c59cca7ff07
8174823: Module system implementation refresh (3/2017)
alanb
parents:
42664
diff
changeset
|
3641 |
JavaCallArguments args; |
6c59cca7ff07
8174823: Module system implementation refresh (3/2017)
alanb
parents:
42664
diff
changeset
|
3642 |
args.push_int(DisplayVMOutputToStderr); |
6c59cca7ff07
8174823: Module system implementation refresh (3/2017)
alanb
parents:
42664
diff
changeset
|
3643 |
args.push_int(log_is_enabled(Debug, init)); // print stack trace if exception thrown |
36508 | 3644 |
JavaCalls::call_static(&result, klass, vmSymbols::initPhase2_name(), |
44326
6c59cca7ff07
8174823: Module system implementation refresh (3/2017)
alanb
parents:
42664
diff
changeset
|
3645 |
vmSymbols::boolean_boolean_int_signature(), &args, CHECK); |
6c59cca7ff07
8174823: Module system implementation refresh (3/2017)
alanb
parents:
42664
diff
changeset
|
3646 |
if (result.get_jint() != JNI_OK) { |
6c59cca7ff07
8174823: Module system implementation refresh (3/2017)
alanb
parents:
42664
diff
changeset
|
3647 |
vm_exit_during_initialization(); // no message or exception |
6c59cca7ff07
8174823: Module system implementation refresh (3/2017)
alanb
parents:
42664
diff
changeset
|
3648 |
} |
6c59cca7ff07
8174823: Module system implementation refresh (3/2017)
alanb
parents:
42664
diff
changeset
|
3649 |
|
36508 | 3650 |
universe_post_module_init(); |
3651 |
} |
|
3652 |
||
3653 |
// Phase 3. final setup - set security manager, system class loader and TCCL |
|
3654 |
// |
|
3655 |
// This will instantiate and set the security manager, set the system class |
|
3656 |
// loader as well as the thread context class loader. The security manager |
|
3657 |
// and system class loader may be a custom class loaded from -Xbootclasspath/a, |
|
3658 |
// other modules or the application's classpath. |
|
3659 |
static void call_initPhase3(TRAPS) { |
|
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
46284
diff
changeset
|
3660 |
Klass* klass = SystemDictionary::resolve_or_fail(vmSymbols::java_lang_System(), true, CHECK); |
36508 | 3661 |
JavaValue result(T_VOID); |
3662 |
JavaCalls::call_static(&result, klass, vmSymbols::initPhase3_name(), |
|
3663 |
vmSymbols::void_method_signature(), CHECK); |
|
3664 |
} |
|
3665 |
||
22539
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3666 |
void Threads::initialize_java_lang_classes(JavaThread* main_thread, TRAPS) { |
37161
e881f320966e
8150015: Integrate TraceTime with Unified Logging more seamlessly
rehn
parents:
37129
diff
changeset
|
3667 |
TraceTime timer("Initialize java.lang classes", TRACETIME_LOG(Info, startuptime)); |
22539
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3668 |
|
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3669 |
if (EagerXrunInit && Arguments::init_libraries_at_startup()) { |
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3670 |
create_vm_init_libraries(); |
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3671 |
} |
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3672 |
|
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3673 |
initialize_class(vmSymbols::java_lang_String(), CHECK); |
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3674 |
|
33628 | 3675 |
// Inject CompactStrings value after the static initializers for String ran. |
3676 |
java_lang_String::set_compact_strings(CompactStrings); |
|
3677 |
||
22539
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3678 |
// Initialize java_lang.System (needed before creating the thread) |
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3679 |
initialize_class(vmSymbols::java_lang_System(), CHECK); |
30606
9dae6b41c617
8069005: Hotspot crashes in System.out.println with assert(resolved_method->method_holder()->is_linked()) failed: must be linked
coleenp
parents:
30175
diff
changeset
|
3680 |
// The VM creates & returns objects of this class. Make sure it's initialized. |
9dae6b41c617
8069005: Hotspot crashes in System.out.println with assert(resolved_method->method_holder()->is_linked()) failed: must be linked
coleenp
parents:
30175
diff
changeset
|
3681 |
initialize_class(vmSymbols::java_lang_Class(), CHECK); |
22539
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3682 |
initialize_class(vmSymbols::java_lang_ThreadGroup(), CHECK); |
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3683 |
Handle thread_group = create_initial_thread_group(CHECK); |
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3684 |
Universe::set_main_thread_group(thread_group()); |
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3685 |
initialize_class(vmSymbols::java_lang_Thread(), CHECK); |
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3686 |
oop thread_object = create_initial_thread(thread_group, main_thread, CHECK); |
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3687 |
main_thread->set_threadObj(thread_object); |
54439
d9b46b7de028
8221477: Inject os/cpu-specific constants into Unsafe from JVM
adinn
parents:
54416
diff
changeset
|
3688 |
|
22539
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3689 |
// Set thread status to running since main thread has |
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3690 |
// been started and running. |
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3691 |
java_lang_Thread::set_thread_status(thread_object, |
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3692 |
java_lang_Thread::RUNNABLE); |
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3693 |
|
36508 | 3694 |
// The VM creates objects of this class. |
44520
0553e129e0ec
8177530: Module system implementation refresh (4/2017)
alanb
parents:
44326
diff
changeset
|
3695 |
initialize_class(vmSymbols::java_lang_Module(), CHECK); |
36508 | 3696 |
|
54439
d9b46b7de028
8221477: Inject os/cpu-specific constants into Unsafe from JVM
adinn
parents:
54416
diff
changeset
|
3697 |
#ifdef ASSERT |
d9b46b7de028
8221477: Inject os/cpu-specific constants into Unsafe from JVM
adinn
parents:
54416
diff
changeset
|
3698 |
InstanceKlass *k = SystemDictionary::UnsafeConstants_klass(); |
d9b46b7de028
8221477: Inject os/cpu-specific constants into Unsafe from JVM
adinn
parents:
54416
diff
changeset
|
3699 |
assert(k->is_not_initialized(), "UnsafeConstants should not already be initialized"); |
d9b46b7de028
8221477: Inject os/cpu-specific constants into Unsafe from JVM
adinn
parents:
54416
diff
changeset
|
3700 |
#endif |
d9b46b7de028
8221477: Inject os/cpu-specific constants into Unsafe from JVM
adinn
parents:
54416
diff
changeset
|
3701 |
|
d9b46b7de028
8221477: Inject os/cpu-specific constants into Unsafe from JVM
adinn
parents:
54416
diff
changeset
|
3702 |
// initialize the hardware-specific constants needed by Unsafe |
d9b46b7de028
8221477: Inject os/cpu-specific constants into Unsafe from JVM
adinn
parents:
54416
diff
changeset
|
3703 |
initialize_class(vmSymbols::jdk_internal_misc_UnsafeConstants(), CHECK); |
d9b46b7de028
8221477: Inject os/cpu-specific constants into Unsafe from JVM
adinn
parents:
54416
diff
changeset
|
3704 |
jdk_internal_misc_UnsafeConstants::set_unsafe_constants(); |
d9b46b7de028
8221477: Inject os/cpu-specific constants into Unsafe from JVM
adinn
parents:
54416
diff
changeset
|
3705 |
|
22539
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3706 |
// The VM preresolves methods to these classes. Make sure that they get initialized |
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3707 |
initialize_class(vmSymbols::java_lang_reflect_Method(), CHECK); |
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
3708 |
initialize_class(vmSymbols::java_lang_ref_Finalizer(), CHECK); |
36508 | 3709 |
|
3710 |
// Phase 1 of the system initialization in the library, java.lang.System class initialization |
|
3711 |
call_initPhase1(CHECK); |
|
22539
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3712 |
|
58842
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
3713 |
// get the Java runtime name, version, and vendor info after java.lang.System is initialized |
22539
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3714 |
JDK_Version::set_runtime_name(get_java_runtime_name(THREAD)); |
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3715 |
JDK_Version::set_runtime_version(get_java_runtime_version(THREAD)); |
58842
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
3716 |
JDK_Version::set_runtime_vendor_version(get_java_runtime_vendor_version(THREAD)); |
6c255334120d
8232080: jlink plugins for vendor information and run-time options
mr
parents:
58488
diff
changeset
|
3717 |
JDK_Version::set_runtime_vendor_vm_bug_url(get_java_runtime_vendor_vm_bug_url(THREAD)); |
22539
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3718 |
|
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3719 |
// an instance of OutOfMemory exception has been allocated earlier |
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3720 |
initialize_class(vmSymbols::java_lang_OutOfMemoryError(), CHECK); |
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3721 |
initialize_class(vmSymbols::java_lang_NullPointerException(), CHECK); |
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3722 |
initialize_class(vmSymbols::java_lang_ClassCastException(), CHECK); |
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3723 |
initialize_class(vmSymbols::java_lang_ArrayStoreException(), CHECK); |
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3724 |
initialize_class(vmSymbols::java_lang_ArithmeticException(), CHECK); |
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3725 |
initialize_class(vmSymbols::java_lang_StackOverflowError(), CHECK); |
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3726 |
initialize_class(vmSymbols::java_lang_IllegalMonitorStateException(), CHECK); |
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3727 |
initialize_class(vmSymbols::java_lang_IllegalArgumentException(), CHECK); |
55159
a38132298eda
8223320: [AOT] jck test api/javax_script/ScriptEngine/PutGet.html fails when test classes are AOTed
iveresov
parents:
55005
diff
changeset
|
3728 |
|
a38132298eda
8223320: [AOT] jck test api/javax_script/ScriptEngine/PutGet.html fails when test classes are AOTed
iveresov
parents:
55005
diff
changeset
|
3729 |
// Eager box cache initialization only if AOT is on and any library is loaded. |
a38132298eda
8223320: [AOT] jck test api/javax_script/ScriptEngine/PutGet.html fails when test classes are AOTed
iveresov
parents:
55005
diff
changeset
|
3730 |
AOTLoader::initialize_box_caches(CHECK); |
22539
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3731 |
} |
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3732 |
|
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3733 |
void Threads::initialize_jsr292_core_classes(TRAPS) { |
37161
e881f320966e
8150015: Integrate TraceTime with Unified Logging more seamlessly
rehn
parents:
37129
diff
changeset
|
3734 |
TraceTime timer("Initialize java.lang.invoke classes", TRACETIME_LOG(Info, startuptime)); |
36178
9739f8c767da
8148630: Convert TraceStartupTime to Unified Logging
rprotacio
parents:
35825
diff
changeset
|
3735 |
|
22539
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3736 |
initialize_class(vmSymbols::java_lang_invoke_MethodHandle(), CHECK); |
46505
fd4bc78630b1
8174749: Use hash table/oops for MemberName table
coleenp
parents:
46495
diff
changeset
|
3737 |
initialize_class(vmSymbols::java_lang_invoke_ResolvedMethodName(), CHECK); |
22539
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3738 |
initialize_class(vmSymbols::java_lang_invoke_MemberName(), CHECK); |
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3739 |
initialize_class(vmSymbols::java_lang_invoke_MethodHandleNatives(), CHECK); |
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3740 |
} |
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3741 |
|
1 | 3742 |
jint Threads::create_vm(JavaVMInitArgs* args, bool* canTryAgain) { |
950 | 3743 |
extern void JDK_Version_init(); |
3744 |
||
31367
25d3fbc1fa5f
8080776: ARM 32 bit binaries do not run on 64 bit ARM v8 hardware
bpittore
parents:
30764
diff
changeset
|
3745 |
// Preinitialize version info. |
25d3fbc1fa5f
8080776: ARM 32 bit binaries do not run on 64 bit ARM v8 hardware
bpittore
parents:
30764
diff
changeset
|
3746 |
VM_Version::early_initialize(); |
25d3fbc1fa5f
8080776: ARM 32 bit binaries do not run on 64 bit ARM v8 hardware
bpittore
parents:
30764
diff
changeset
|
3747 |
|
1 | 3748 |
// Check version |
3749 |
if (!is_supported_jni_version(args->version)) return JNI_EVERSION; |
|
3750 |
||
35468
32c11a4f200c
8146222: assert(_initialized) failed: TLS not initialized yet!
dholmes
parents:
35222
diff
changeset
|
3751 |
// Initialize library-based TLS |
32c11a4f200c
8146222: assert(_initialized) failed: TLS not initialized yet!
dholmes
parents:
35222
diff
changeset
|
3752 |
ThreadLocalStorage::init(); |
32c11a4f200c
8146222: assert(_initialized) failed: TLS not initialized yet!
dholmes
parents:
35222
diff
changeset
|
3753 |
|
1 | 3754 |
// Initialize the output stream module |
3755 |
ostream_init(); |
|
3756 |
||
3757 |
// Process java launcher properties. |
|
3758 |
Arguments::process_sun_java_launcher_properties(args); |
|
3759 |
||
35468
32c11a4f200c
8146222: assert(_initialized) failed: TLS not initialized yet!
dholmes
parents:
35222
diff
changeset
|
3760 |
// Initialize the os module |
1 | 3761 |
os::init(); |
3762 |
||
33097 | 3763 |
// Record VM creation timing statistics |
3764 |
TraceVmCreationTime create_vm_timer; |
|
3765 |
create_vm_timer.start(); |
|
3766 |
||
1 | 3767 |
// Initialize system properties. |
3768 |
Arguments::init_system_properties(); |
|
3769 |
||
22551 | 3770 |
// So that JDK version can be used as a discriminator when parsing arguments |
950 | 3771 |
JDK_Version_init(); |
3772 |
||
6961
a32b2fc66321
6988363: Rebrand vm vendor property settings (jdk7 only)
zgu
parents:
6273
diff
changeset
|
3773 |
// Update/Initialize System properties after JDK version number is known |
a32b2fc66321
6988363: Rebrand vm vendor property settings (jdk7 only)
zgu
parents:
6273
diff
changeset
|
3774 |
Arguments::init_version_specific_system_properties(); |
a32b2fc66321
6988363: Rebrand vm vendor property settings (jdk7 only)
zgu
parents:
6273
diff
changeset
|
3775 |
|
33097 | 3776 |
// Make sure to initialize log configuration *before* parsing arguments |
3777 |
LogConfiguration::initialize(create_vm_timer.begin_time()); |
|
3778 |
||
1 | 3779 |
// Parse arguments |
47903
7f22774a5f42
8146115: Improve docker container detection and resource configuration usage
bobv
parents:
47881
diff
changeset
|
3780 |
// Note: this internally calls os::init_container_support() |
1 | 3781 |
jint parse_result = Arguments::parse(args); |
3782 |
if (parse_result != JNI_OK) return parse_result; |
|
3783 |
||
19986
33d188c66ed9
8010722: assert: failed: heap size is too big for compressed oops
tschatzl
parents:
19723
diff
changeset
|
3784 |
os::init_before_ergo(); |
33d188c66ed9
8010722: assert: failed: heap size is too big for compressed oops
tschatzl
parents:
19723
diff
changeset
|
3785 |
|
33d188c66ed9
8010722: assert: failed: heap size is too big for compressed oops
tschatzl
parents:
19723
diff
changeset
|
3786 |
jint ergo_result = Arguments::apply_ergo(); |
33d188c66ed9
8010722: assert: failed: heap size is too big for compressed oops
tschatzl
parents:
19723
diff
changeset
|
3787 |
if (ergo_result != JNI_OK) return ergo_result; |
33d188c66ed9
8010722: assert: failed: heap size is too big for compressed oops
tschatzl
parents:
19723
diff
changeset
|
3788 |
|
31995
aa4049b4184a
8130459: Add additional validation after heap creation
sangheki
parents:
31981
diff
changeset
|
3789 |
// Final check of all ranges after ergonomics which may change values. |
49902
3661f31c6df4
8202150: [REDO] Split globals.hpp to factor out the Flag class
gziemski
parents:
49860
diff
changeset
|
3790 |
if (!JVMFlagRangeList::check_ranges()) { |
31995
aa4049b4184a
8130459: Add additional validation after heap creation
sangheki
parents:
31981
diff
changeset
|
3791 |
return JNI_EINVAL; |
aa4049b4184a
8130459: Add additional validation after heap creation
sangheki
parents:
31981
diff
changeset
|
3792 |
} |
aa4049b4184a
8130459: Add additional validation after heap creation
sangheki
parents:
31981
diff
changeset
|
3793 |
|
aa4049b4184a
8130459: Add additional validation after heap creation
sangheki
parents:
31981
diff
changeset
|
3794 |
// Final check of all 'AfterErgo' constraints after ergonomics which may change values. |
49902
3661f31c6df4
8202150: [REDO] Split globals.hpp to factor out the Flag class
gziemski
parents:
49860
diff
changeset
|
3795 |
bool constraint_result = JVMFlagConstraintList::check_constraints(JVMFlagConstraint::AfterErgo); |
31995
aa4049b4184a
8130459: Add additional validation after heap creation
sangheki
parents:
31981
diff
changeset
|
3796 |
if (!constraint_result) { |
31371
311143309e73
8122937: [JEP 245] Validate JVM Command-Line Flag Arguments.
gziemski
parents:
30764
diff
changeset
|
3797 |
return JNI_EINVAL; |
311143309e73
8122937: [JEP 245] Validate JVM Command-Line Flag Arguments.
gziemski
parents:
30764
diff
changeset
|
3798 |
} |
311143309e73
8122937: [JEP 245] Validate JVM Command-Line Flag Arguments.
gziemski
parents:
30764
diff
changeset
|
3799 |
|
49902
3661f31c6df4
8202150: [REDO] Split globals.hpp to factor out the Flag class
gziemski
parents:
49860
diff
changeset
|
3800 |
JVMFlagWriteableList::mark_startup(); |
38273
2634194d7555
8073500: Prevent certain commercial flags from being changed at runtime
gziemski
parents:
38144
diff
changeset
|
3801 |
|
1 | 3802 |
if (PauseAtStartup) { |
3803 |
os::pause(); |
|
3804 |
} |
|
3805 |
||
10739 | 3806 |
HOTSPOT_VM_INIT_BEGIN(); |
1 | 3807 |
|
3808 |
// Timing (must come after argument parsing) |
|
37161
e881f320966e
8150015: Integrate TraceTime with Unified Logging more seamlessly
rehn
parents:
37129
diff
changeset
|
3809 |
TraceTime timer("Create VM", TRACETIME_LOG(Info, startuptime)); |
1 | 3810 |
|
53299
0b2574a2a6c7
8216982: Assertion poison page established too early
stuefe
parents:
53121
diff
changeset
|
3811 |
// Initialize the os module after parsing the args |
0b2574a2a6c7
8216982: Assertion poison page established too early
stuefe
parents:
53121
diff
changeset
|
3812 |
jint os_init_2_result = os::init_2(); |
0b2574a2a6c7
8216982: Assertion poison page established too early
stuefe
parents:
53121
diff
changeset
|
3813 |
if (os_init_2_result != JNI_OK) return os_init_2_result; |
0b2574a2a6c7
8216982: Assertion poison page established too early
stuefe
parents:
53121
diff
changeset
|
3814 |
|
49653
a569cb4425f3
8191101: Show register content in hs-err file on assert
stuefe
parents:
49636
diff
changeset
|
3815 |
#ifdef CAN_SHOW_REGISTERS_ON_ASSERT |
a569cb4425f3
8191101: Show register content in hs-err file on assert
stuefe
parents:
49636
diff
changeset
|
3816 |
// Initialize assert poison page mechanism. |
a569cb4425f3
8191101: Show register content in hs-err file on assert
stuefe
parents:
49636
diff
changeset
|
3817 |
if (ShowRegistersOnAssert) { |
a569cb4425f3
8191101: Show register content in hs-err file on assert
stuefe
parents:
49636
diff
changeset
|
3818 |
initialize_assert_poison(); |
a569cb4425f3
8191101: Show register content in hs-err file on assert
stuefe
parents:
49636
diff
changeset
|
3819 |
} |
a569cb4425f3
8191101: Show register content in hs-err file on assert
stuefe
parents:
49636
diff
changeset
|
3820 |
#endif // CAN_SHOW_REGISTERS_ON_ASSERT |
a569cb4425f3
8191101: Show register content in hs-err file on assert
stuefe
parents:
49636
diff
changeset
|
3821 |
|
47917 | 3822 |
SafepointMechanism::initialize(); |
3823 |
||
14580
3e2316663327
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
14490
diff
changeset
|
3824 |
jint adjust_after_os_result = Arguments::adjust_after_os(); |
3e2316663327
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
14490
diff
changeset
|
3825 |
if (adjust_after_os_result != JNI_OK) return adjust_after_os_result; |
3e2316663327
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
14490
diff
changeset
|
3826 |
|
1 | 3827 |
// Initialize output stream logging |
3828 |
ostream_init_log(); |
|
3829 |
||
3830 |
// Convert -Xrun to -agentlib: if there is no JVM_OnLoad |
|
3831 |
// Must be before create_vm_init_agents() |
|
3832 |
if (Arguments::init_libraries_at_startup()) { |
|
3833 |
convert_vm_init_libraries_to_agents(); |
|
3834 |
} |
|
3835 |
||
3836 |
// Launch -agentlib/-agentpath and converted -Xrun agents |
|
3837 |
if (Arguments::init_agents_at_startup()) { |
|
3838 |
create_vm_init_agents(); |
|
3839 |
} |
|
3840 |
||
3841 |
// Initialize Threads state |
|
3842 |
_number_of_threads = 0; |
|
3843 |
_number_of_non_daemon_threads = 0; |
|
3844 |
||
3845 |
// Initialize global data structures and create system classes in heap |
|
3846 |
vm_init_globals(); |
|
3847 |
||
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
3848 |
#if INCLUDE_JVMCI |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
3849 |
if (JVMCICounterSize > 0) { |
55206 | 3850 |
JavaThread::_jvmci_old_thread_counters = NEW_C_HEAP_ARRAY(jlong, JVMCICounterSize, mtJVMCI); |
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
3851 |
memset(JavaThread::_jvmci_old_thread_counters, 0, sizeof(jlong) * JVMCICounterSize); |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
3852 |
} else { |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
3853 |
JavaThread::_jvmci_old_thread_counters = NULL; |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
3854 |
} |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
3855 |
#endif // INCLUDE_JVMCI |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
3856 |
|
1 | 3857 |
// Attach the main thread to this os thread |
3858 |
JavaThread* main_thread = new JavaThread(); |
|
3859 |
main_thread->set_thread_state(_thread_in_vm); |
|
34633
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
34285
diff
changeset
|
3860 |
main_thread->initialize_thread_current(); |
2a6c7c7b30a7
8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
dholmes
parents:
34285
diff
changeset
|
3861 |
// must do this before set_active_handles |
1 | 3862 |
main_thread->record_stack_base_and_size(); |
52302
912b79d983d9
8212173: Thread._stack_base/_stack_size initialized too late for new threads
stuefe
parents:
52297
diff
changeset
|
3863 |
main_thread->register_thread_stack_with_NMT(); |
1 | 3864 |
main_thread->set_active_handles(JNIHandleBlock::allocate_block()); |
3865 |
||
3866 |
if (!main_thread->set_as_starting_thread()) { |
|
3867 |
vm_shutdown_during_initialization( |
|
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
3868 |
"Failed necessary internal allocation. Out of swap space"); |
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
3869 |
main_thread->smr_delete(); |
1 | 3870 |
*canTryAgain = false; // don't let caller call JNI_CreateJavaVM again |
3871 |
return JNI_ENOMEM; |
|
3872 |
} |
|
3873 |
||
3874 |
// Enable guard page *after* os::create_main_thread(), otherwise it would |
|
3875 |
// crash Linux VM, see notes in os_linux.cpp. |
|
3876 |
main_thread->create_stack_guard_pages(); |
|
3877 |
||
6975 | 3878 |
// Initialize Java-Level synchronization subsystem |
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
3879 |
ObjectMonitor::Initialize(); |
1 | 3880 |
|
3881 |
// Initialize global modules |
|
3882 |
jint status = init_globals(); |
|
3883 |
if (status != JNI_OK) { |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
3884 |
main_thread->smr_delete(); |
1 | 3885 |
*canTryAgain = false; // don't let caller call JNI_CreateJavaVM again |
3886 |
return status; |
|
3887 |
} |
|
3888 |
||
59259
127ca611f19b
8233197: Invert JvmtiExport::post_vm_initialized() and Jfr:on_vm_start() start-up order for correct option parsing
mgronlun
parents:
59252
diff
changeset
|
3889 |
JFR_ONLY(Jfr::on_create_vm_1();) |
36384 | 3890 |
|
6176
4d9030fe341f
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
5888
diff
changeset
|
3891 |
// Should be done after the heap is fully created |
4d9030fe341f
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
5888
diff
changeset
|
3892 |
main_thread->cache_global_variables(); |
4d9030fe341f
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
5888
diff
changeset
|
3893 |
|
1 | 3894 |
HandleMark hm; |
3895 |
||
3896 |
{ MutexLocker mu(Threads_lock); |
|
3897 |
Threads::add(main_thread); |
|
3898 |
} |
|
3899 |
||
3900 |
// Any JVMTI raw monitors entered in onload will transition into |
|
3901 |
// real raw monitor. VM is setup enough here for raw monitor enter. |
|
3902 |
JvmtiExport::transition_pending_onload_raw_monitors(); |
|
3903 |
||
3904 |
// Create the VMThread |
|
37161
e881f320966e
8150015: Integrate TraceTime with Unified Logging more seamlessly
rehn
parents:
37129
diff
changeset
|
3905 |
{ TraceTime timer("Start VMThread", TRACETIME_LOG(Info, startuptime)); |
36178
9739f8c767da
8148630: Convert TraceStartupTime to Unified Logging
rprotacio
parents:
35825
diff
changeset
|
3906 |
|
58488
165b193b30dd
8231289: Disentangle JvmtiRawMonitor from ObjectMonitor and clean it up
dholmes
parents:
58447
diff
changeset
|
3907 |
VMThread::create(); |
1 | 3908 |
Thread* vmthread = VMThread::vm_thread(); |
3909 |
||
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
3910 |
if (!os::create_thread(vmthread, os::vm_thread)) { |
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
3911 |
vm_exit_during_initialization("Cannot create VM thread. " |
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
3912 |
"Out of system resources."); |
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
3913 |
} |
1 | 3914 |
|
3915 |
// Wait for the VM thread to become ready, and VMThread::run to initialize |
|
3916 |
// Monitors can have spurious returns, must always check another state flag |
|
3917 |
{ |
|
54645
05aaccf7d558
8222988: Use MonitorLocker rather than MutexLocker when wait/notify used
coleenp
parents:
54631
diff
changeset
|
3918 |
MonitorLocker ml(Notify_lock); |
1 | 3919 |
os::start_thread(vmthread); |
3920 |
while (vmthread->active_handles() == NULL) { |
|
54645
05aaccf7d558
8222988: Use MonitorLocker rather than MutexLocker when wait/notify used
coleenp
parents:
54631
diff
changeset
|
3921 |
ml.wait(); |
1 | 3922 |
} |
3923 |
} |
|
3924 |
} |
|
3925 |
||
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
3926 |
assert(Universe::is_fully_initialized(), "not initialized"); |
16680
960505df90e7
8011343: Add new flag for verifying the heap during startup
johnc
parents:
16606
diff
changeset
|
3927 |
if (VerifyDuringStartup) { |
17112
e49af4ba7755
8013132: Add a flag to turn off the output of the verbose verification code
stefank
parents:
16680
diff
changeset
|
3928 |
// Make sure we're starting with a clean slate. |
e49af4ba7755
8013132: Add a flag to turn off the output of the verbose verification code
stefank
parents:
16680
diff
changeset
|
3929 |
VM_Verify verify_op; |
16680
960505df90e7
8011343: Add new flag for verifying the heap during startup
johnc
parents:
16606
diff
changeset
|
3930 |
VMThread::execute(&verify_op); |
16606
926ac1e006db
8010463: G1: Crashes with -UseTLAB and heap verification
johnc
parents:
16394
diff
changeset
|
3931 |
} |
926ac1e006db
8010463: G1: Crashes with -UseTLAB and heap verification
johnc
parents:
16394
diff
changeset
|
3932 |
|
50557
83e2deb73612
8204668: Cleanup management of the java.vm.info System property
dholmes
parents:
50456
diff
changeset
|
3933 |
// We need this to update the java.vm.info property in case any flags used |
83e2deb73612
8204668: Cleanup management of the java.vm.info System property
dholmes
parents:
50456
diff
changeset
|
3934 |
// to initially define it have been changed. This is needed for both CDS and |
83e2deb73612
8204668: Cleanup management of the java.vm.info System property
dholmes
parents:
50456
diff
changeset
|
3935 |
// AOT, since UseSharedSpaces and UseAOT may be changed after java.vm.info |
83e2deb73612
8204668: Cleanup management of the java.vm.info System property
dholmes
parents:
50456
diff
changeset
|
3936 |
// is initially computed. See Abstract_VM_Version::vm_info_string(). |
83e2deb73612
8204668: Cleanup management of the java.vm.info System property
dholmes
parents:
50456
diff
changeset
|
3937 |
// This update must happen before we initialize the java classes, but |
83e2deb73612
8204668: Cleanup management of the java.vm.info System property
dholmes
parents:
50456
diff
changeset
|
3938 |
// after any initialization logic that might modify the flags. |
83e2deb73612
8204668: Cleanup management of the java.vm.info System property
dholmes
parents:
50456
diff
changeset
|
3939 |
Arguments::update_vm_info_property(VM_Version::vm_info_string()); |
83e2deb73612
8204668: Cleanup management of the java.vm.info System property
dholmes
parents:
50456
diff
changeset
|
3940 |
|
22539
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3941 |
Thread* THREAD = Thread::current(); |
1 | 3942 |
|
3943 |
// Always call even when there are not JVMTI environments yet, since environments |
|
3944 |
// may be attached late and JVMTI must track phases of VM execution |
|
36508 | 3945 |
JvmtiExport::enter_early_start_phase(); |
1 | 3946 |
|
3947 |
// Notify JVMTI agents that VM has started (JNI is up) - nop if no agents. |
|
36508 | 3948 |
JvmtiExport::post_early_vm_start(); |
1 | 3949 |
|
22539
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3950 |
initialize_java_lang_classes(main_thread, CHECK_JNI_ERR); |
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
3951 |
|
1 | 3952 |
quicken_jni_functions(); |
3953 |
||
36074
11263906664c
8138922: StubCodeDesc constructor publishes partially-constructed objects on StubCodeDesc::_list
vlivanov
parents:
35825
diff
changeset
|
3954 |
// No more stub generation allowed after that point. |
11263906664c
8138922: StubCodeDesc constructor publishes partially-constructed objects on StubCodeDesc::_list
vlivanov
parents:
35825
diff
changeset
|
3955 |
StubCodeDesc::freeze(); |
11263906664c
8138922: StubCodeDesc constructor publishes partially-constructed objects on StubCodeDesc::_list
vlivanov
parents:
35825
diff
changeset
|
3956 |
|
1 | 3957 |
// Set flag that basic initialization has completed. Used by exceptions and various |
3958 |
// debug stuff, that does not work until all basic classes have been initialized. |
|
3959 |
set_init_completed(); |
|
3960 |
||
33097 | 3961 |
LogConfiguration::post_initialize(); |
24847
37c354b113fe
8042933: assert(capacity_until_gc >= committed_bytes) failed
ehelin
parents:
24844
diff
changeset
|
3962 |
Metaspace::post_initialize(); |
37c354b113fe
8042933: assert(capacity_until_gc >= committed_bytes) failed
ehelin
parents:
24844
diff
changeset
|
3963 |
|
10739 | 3964 |
HOTSPOT_VM_INIT_END(); |
1 | 3965 |
|
3966 |
// record VM initialization completion time |
|
13975
2f7431485cfa
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
13860
diff
changeset
|
3967 |
#if INCLUDE_MANAGEMENT |
1 | 3968 |
Management::record_vm_init_completed(); |
13975
2f7431485cfa
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
13860
diff
changeset
|
3969 |
#endif // INCLUDE_MANAGEMENT |
1 | 3970 |
|
3971 |
// Signal Dispatcher needs to be started before VMInit event is posted |
|
50184
1a4101ebec92
8202014: Possible to receive signal before signal semaphore created
coleenp
parents:
50113
diff
changeset
|
3972 |
os::initialize_jdk_signal_support(CHECK_JNI_ERR); |
1 | 3973 |
|
3974 |
// Start Attach Listener if +StartAttachListener or it can't be started lazily |
|
3975 |
if (!DisableAttachMechanism) { |
|
18931
5de3638104b4
7162400: Intermittent java.io.IOException: Bad file number during HotSpotVirtualMachine.executeCommand
allwin
parents:
18928
diff
changeset
|
3976 |
AttachListener::vm_start(); |
1 | 3977 |
if (StartAttachListener || AttachListener::init_at_startup()) { |
3978 |
AttachListener::init(); |
|
3979 |
} |
|
3980 |
} |
|
3981 |
||
3982 |
// Launch -Xrun agents |
|
3983 |
// Must be done in the JVMTI live phase so that for backward compatibility the JDWP |
|
3984 |
// back-end can launch with -Xdebug -Xrunjdwp. |
|
3985 |
if (!EagerXrunInit && Arguments::init_libraries_at_startup()) { |
|
3986 |
create_vm_init_libraries(); |
|
3987 |
} |
|
3988 |
||
10022
377345fb5fb5
7061204: clean the chunk table synchronously in embedded builds
jcoomes
parents:
9992
diff
changeset
|
3989 |
if (CleanChunkPoolAsync) { |
377345fb5fb5
7061204: clean the chunk table synchronously in embedded builds
jcoomes
parents:
9992
diff
changeset
|
3990 |
Chunk::start_chunk_pool_cleaner_task(); |
377345fb5fb5
7061204: clean the chunk table synchronously in embedded builds
jcoomes
parents:
9992
diff
changeset
|
3991 |
} |
1 | 3992 |
|
55159
a38132298eda
8223320: [AOT] jck test api/javax_script/ScriptEngine/PutGet.html fails when test classes are AOTed
iveresov
parents:
55005
diff
changeset
|
3993 |
|
1 | 3994 |
// initialize compiler(s) |
47799 | 3995 |
#if defined(COMPILER1) || COMPILER2_OR_JVMCI |
49618
c5b066caefba
8200230: [Graal] Compilations should not be enqueued before Graal is initialized
thartmann
parents:
49592
diff
changeset
|
3996 |
#if INCLUDE_JVMCI |
c5b066caefba
8200230: [Graal] Compilations should not be enqueued before Graal is initialized
thartmann
parents:
49592
diff
changeset
|
3997 |
bool force_JVMCI_intialization = false; |
c5b066caefba
8200230: [Graal] Compilations should not be enqueued before Graal is initialized
thartmann
parents:
49592
diff
changeset
|
3998 |
if (EnableJVMCI) { |
c5b066caefba
8200230: [Graal] Compilations should not be enqueued before Graal is initialized
thartmann
parents:
49592
diff
changeset
|
3999 |
// Initialize JVMCI eagerly when it is explicitly requested. |
54669
ad45b3802d4e
8220623: [JVMCI] Update JVMCI to support JVMCI based Compiler compiled into shared library
kvn
parents:
54647
diff
changeset
|
4000 |
// Or when JVMCILibDumpJNIConfig or JVMCIPrintProperties is enabled. |
ad45b3802d4e
8220623: [JVMCI] Update JVMCI to support JVMCI based Compiler compiled into shared library
kvn
parents:
54647
diff
changeset
|
4001 |
force_JVMCI_intialization = EagerJVMCI || JVMCIPrintProperties || JVMCILibDumpJNIConfig; |
49618
c5b066caefba
8200230: [Graal] Compilations should not be enqueued before Graal is initialized
thartmann
parents:
49592
diff
changeset
|
4002 |
|
c5b066caefba
8200230: [Graal] Compilations should not be enqueued before Graal is initialized
thartmann
parents:
49592
diff
changeset
|
4003 |
if (!force_JVMCI_intialization) { |
c5b066caefba
8200230: [Graal] Compilations should not be enqueued before Graal is initialized
thartmann
parents:
49592
diff
changeset
|
4004 |
// 8145270: Force initialization of JVMCI runtime otherwise requests for blocking |
c5b066caefba
8200230: [Graal] Compilations should not be enqueued before Graal is initialized
thartmann
parents:
49592
diff
changeset
|
4005 |
// compilations via JVMCI will not actually block until JVMCI is initialized. |
c5b066caefba
8200230: [Graal] Compilations should not be enqueued before Graal is initialized
thartmann
parents:
49592
diff
changeset
|
4006 |
force_JVMCI_intialization = UseJVMCICompiler && (!UseInterpreter || !BackgroundCompilation); |
c5b066caefba
8200230: [Graal] Compilations should not be enqueued before Graal is initialized
thartmann
parents:
49592
diff
changeset
|
4007 |
} |
c5b066caefba
8200230: [Graal] Compilations should not be enqueued before Graal is initialized
thartmann
parents:
49592
diff
changeset
|
4008 |
} |
c5b066caefba
8200230: [Graal] Compilations should not be enqueued before Graal is initialized
thartmann
parents:
49592
diff
changeset
|
4009 |
#endif |
c5b066caefba
8200230: [Graal] Compilations should not be enqueued before Graal is initialized
thartmann
parents:
49592
diff
changeset
|
4010 |
CompileBroker::compilation_init_phase1(CHECK_JNI_ERR); |
c5b066caefba
8200230: [Graal] Compilations should not be enqueued before Graal is initialized
thartmann
parents:
49592
diff
changeset
|
4011 |
// Postpone completion of compiler initialization to after JVMCI |
c5b066caefba
8200230: [Graal] Compilations should not be enqueued before Graal is initialized
thartmann
parents:
49592
diff
changeset
|
4012 |
// is initialized to avoid timeouts of blocking compilations. |
c5b066caefba
8200230: [Graal] Compilations should not be enqueued before Graal is initialized
thartmann
parents:
49592
diff
changeset
|
4013 |
if (JVMCI_ONLY(!force_JVMCI_intialization) NOT_JVMCI(true)) { |
c5b066caefba
8200230: [Graal] Compilations should not be enqueued before Graal is initialized
thartmann
parents:
49592
diff
changeset
|
4014 |
CompileBroker::compilation_init_phase2(); |
c5b066caefba
8200230: [Graal] Compilations should not be enqueued before Graal is initialized
thartmann
parents:
49592
diff
changeset
|
4015 |
} |
13975
2f7431485cfa
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
13860
diff
changeset
|
4016 |
#endif |
2f7431485cfa
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
13860
diff
changeset
|
4017 |
|
22539
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
4018 |
// Pre-initialize some JSR292 core classes to avoid deadlock during class loading. |
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
4019 |
// It is done after compilers are initialized, because otherwise compilations of |
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
4020 |
// signature polymorphic MH intrinsics can be missed |
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
4021 |
// (see SystemDictionary::find_method_handle_intrinsic). |
24322 | 4022 |
initialize_jsr292_core_classes(CHECK_JNI_ERR); |
19713
8ef23b417f55
8022595: JSR292: deadlock during class loading of MethodHandles, MethodHandleImpl & MethodHandleNatives
vlivanov
parents:
18946
diff
changeset
|
4023 |
|
36508 | 4024 |
// This will initialize the module system. Only java.base classes can be |
4025 |
// loaded until phase 2 completes |
|
4026 |
call_initPhase2(CHECK_JNI_ERR); |
|
4027 |
||
59259
127ca611f19b
8233197: Invert JvmtiExport::post_vm_initialized() and Jfr:on_vm_start() start-up order for correct option parsing
mgronlun
parents:
59252
diff
changeset
|
4028 |
JFR_ONLY(Jfr::on_create_vm_2();) |
127ca611f19b
8233197: Invert JvmtiExport::post_vm_initialized() and Jfr:on_vm_start() start-up order for correct option parsing
mgronlun
parents:
59252
diff
changeset
|
4029 |
|
36508 | 4030 |
// Always call even when there are not JVMTI environments yet, since environments |
4031 |
// may be attached late and JVMTI must track phases of VM execution |
|
4032 |
JvmtiExport::enter_start_phase(); |
|
4033 |
||
4034 |
// Notify JVMTI agents that VM has started (JNI is up) - nop if no agents. |
|
4035 |
JvmtiExport::post_vm_start(); |
|
4036 |
||
4037 |
// Final system initialization including security manager and system class loader |
|
4038 |
call_initPhase3(CHECK_JNI_ERR); |
|
4039 |
||
47614
0ecfd6c951a6
8185694: Replace SystemDictionaryShared::_java_platform_loader with SystemDictionary::is_platform_class_loader()
ccheung
parents:
47613
diff
changeset
|
4040 |
// cache the system and platform class loaders |
0ecfd6c951a6
8185694: Replace SystemDictionaryShared::_java_platform_loader with SystemDictionary::is_platform_class_loader()
ccheung
parents:
47613
diff
changeset
|
4041 |
SystemDictionary::compute_java_loaders(CHECK_JNI_ERR); |
40074
135bb8aa1e18
8161274: [JVMCI] compiler/jvmci/events/JvmciNotifyInstallEventTest.java fails with NoClassDefFound
dnsimon
parents:
40034
diff
changeset
|
4042 |
|
49746 | 4043 |
#if INCLUDE_CDS |
54927 | 4044 |
// capture the module path info from the ModuleEntryTable |
4045 |
ClassLoader::initialize_module_path(THREAD); |
|
49746 | 4046 |
#endif |
49739
00805b129186
8194812: Extend class-data sharing to support the module path
ccheung
parents:
49659
diff
changeset
|
4047 |
|
40034
4a288aaf8511
8160121: [JVMCI] JvmciNotifyBootstrapFinishedEventTest.java failed NoClassDefFoundError: jdk/vm/ci/runtime/JVMCI
never
parents:
39391
diff
changeset
|
4048 |
#if INCLUDE_JVMCI |
49618
c5b066caefba
8200230: [Graal] Compilations should not be enqueued before Graal is initialized
thartmann
parents:
49592
diff
changeset
|
4049 |
if (force_JVMCI_intialization) { |
54669
ad45b3802d4e
8220623: [JVMCI] Update JVMCI to support JVMCI based Compiler compiled into shared library
kvn
parents:
54647
diff
changeset
|
4050 |
JVMCI::initialize_compiler(CHECK_JNI_ERR); |
49618
c5b066caefba
8200230: [Graal] Compilations should not be enqueued before Graal is initialized
thartmann
parents:
49592
diff
changeset
|
4051 |
CompileBroker::compilation_init_phase2(); |
40034
4a288aaf8511
8160121: [JVMCI] JvmciNotifyBootstrapFinishedEventTest.java failed NoClassDefFoundError: jdk/vm/ci/runtime/JVMCI
never
parents:
39391
diff
changeset
|
4052 |
} |
4a288aaf8511
8160121: [JVMCI] JvmciNotifyBootstrapFinishedEventTest.java failed NoClassDefFoundError: jdk/vm/ci/runtime/JVMCI
never
parents:
39391
diff
changeset
|
4053 |
#endif |
36508 | 4054 |
|
4055 |
// Always call even when there are not JVMTI environments yet, since environments |
|
4056 |
// may be attached late and JVMTI must track phases of VM execution |
|
4057 |
JvmtiExport::enter_live_phase(); |
|
4058 |
||
52816
03253c32d8e7
8176828: jtools do not list VM process launched with the debugger option suspend=y
gadams
parents:
52701
diff
changeset
|
4059 |
// Make perfmemory accessible |
03253c32d8e7
8176828: jtools do not list VM process launched with the debugger option suspend=y
gadams
parents:
52701
diff
changeset
|
4060 |
PerfMemory::set_accessible(true); |
03253c32d8e7
8176828: jtools do not list VM process launched with the debugger option suspend=y
gadams
parents:
52701
diff
changeset
|
4061 |
|
36508 | 4062 |
// Notify JVMTI agents that VM initialization is complete - nop if no agents. |
4063 |
JvmtiExport::post_vm_initialized(); |
|
4064 |
||
59259
127ca611f19b
8233197: Invert JvmtiExport::post_vm_initialized() and Jfr:on_vm_start() start-up order for correct option parsing
mgronlun
parents:
59252
diff
changeset
|
4065 |
JFR_ONLY(Jfr::on_create_vm_3();) |
36508 | 4066 |
|
13975
2f7431485cfa
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
13860
diff
changeset
|
4067 |
#if INCLUDE_MANAGEMENT |
1 | 4068 |
Management::initialize(THREAD); |
13975
2f7431485cfa
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
13860
diff
changeset
|
4069 |
|
1 | 4070 |
if (HAS_PENDING_EXCEPTION) { |
4071 |
// management agent fails to start possibly due to |
|
4072 |
// configuration problem and is responsible for printing |
|
4073 |
// stack trace if appropriate. Simply exit VM. |
|
4074 |
vm_exit(1); |
|
4075 |
} |
|
22539
a27fa687eca8
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
22533
diff
changeset
|
4076 |
#endif // INCLUDE_MANAGEMENT |
1 | 4077 |
|
4078 |
if (MemProfiling) MemProfiler::engage(); |
|
4079 |
StatSampler::engage(); |
|
4080 |
if (CheckJNICalls) JniPeriodicChecker::engage(); |
|
4081 |
||
4082 |
BiasedLocking::init(); |
|
4083 |
||
23491 | 4084 |
#if INCLUDE_RTM_OPT |
4085 |
RTMLockingCounters::init(); |
|
4086 |
#endif |
|
4087 |
||
54795
fd08f5a976e6
8189208: Cleanup ancient argument processing code
gziemski
parents:
54732
diff
changeset
|
4088 |
call_postVMInitHook(THREAD); |
fd08f5a976e6
8189208: Cleanup ancient argument processing code
gziemski
parents:
54732
diff
changeset
|
4089 |
// The Java side of PostVMInitHook.run must deal with all |
fd08f5a976e6
8189208: Cleanup ancient argument processing code
gziemski
parents:
54732
diff
changeset
|
4090 |
// exceptions and provide means of diagnosis. |
fd08f5a976e6
8189208: Cleanup ancient argument processing code
gziemski
parents:
54732
diff
changeset
|
4091 |
if (HAS_PENDING_EXCEPTION) { |
fd08f5a976e6
8189208: Cleanup ancient argument processing code
gziemski
parents:
54732
diff
changeset
|
4092 |
CLEAR_PENDING_EXCEPTION; |
7900
4c7fc6332f7e
6994753: Implement optional hook to a Java method at VM startup.
kevinw
parents:
7897
diff
changeset
|
4093 |
} |
1 | 4094 |
|
14390
bd0d881cf1c5
7127792: Add the ability to change an existing PeriodicTask's execution interval
rbackman
parents:
14289
diff
changeset
|
4095 |
{ |
29321 | 4096 |
MutexLocker ml(PeriodicTask_lock); |
4097 |
// Make sure the WatcherThread can be started by WatcherThread::start() |
|
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4098 |
// or by dynamic enrollment. |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4099 |
WatcherThread::make_startable(); |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4100 |
// Start up the WatcherThread if there are any periodic tasks |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4101 |
// NOTE: All PeriodicTasks should be registered by now. If they |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4102 |
// aren't, late joiners might appear to start slowly (we might |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4103 |
// take a while to process their first tick). |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4104 |
if (PeriodicTask::num_tasks() > 0) { |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4105 |
WatcherThread::start(); |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4106 |
} |
1 | 4107 |
} |
4108 |
||
4109 |
create_vm_timer.end(); |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
4110 |
#ifdef ASSERT |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
4111 |
_vm_complete = true; |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
4112 |
#endif |
47103
a993ec29ec75
8186842: Use Java class loaders for creating the CDS archive
ccheung
parents:
47089
diff
changeset
|
4113 |
|
a993ec29ec75
8186842: Use Java class loaders for creating the CDS archive
ccheung
parents:
47089
diff
changeset
|
4114 |
if (DumpSharedSpaces) { |
a993ec29ec75
8186842: Use Java class loaders for creating the CDS archive
ccheung
parents:
47089
diff
changeset
|
4115 |
MetaspaceShared::preload_and_dump(CHECK_JNI_ERR); |
a993ec29ec75
8186842: Use Java class loaders for creating the CDS archive
ccheung
parents:
47089
diff
changeset
|
4116 |
ShouldNotReachHere(); |
a993ec29ec75
8186842: Use Java class loaders for creating the CDS archive
ccheung
parents:
47089
diff
changeset
|
4117 |
} |
a993ec29ec75
8186842: Use Java class loaders for creating the CDS archive
ccheung
parents:
47089
diff
changeset
|
4118 |
|
1 | 4119 |
return JNI_OK; |
4120 |
} |
|
4121 |
||
4122 |
// type for the Agent_OnLoad and JVM_OnLoad entry points |
|
4123 |
extern "C" { |
|
4124 |
typedef jint (JNICALL *OnLoadEntry_t)(JavaVM *, char *, void *); |
|
4125 |
} |
|
4126 |
// Find a command line agent library and return its entry point for |
|
4127 |
// -agentlib: -agentpath: -Xrun |
|
4128 |
// num_symbol_entries must be passed-in since only the caller knows the number of symbols in the array. |
|
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
4129 |
static OnLoadEntry_t lookup_on_load(AgentLibrary* agent, |
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
4130 |
const char *on_load_symbols[], |
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
4131 |
size_t num_symbol_entries) { |
1 | 4132 |
OnLoadEntry_t on_load_entry = NULL; |
19553
9bbd930be684
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
18946
diff
changeset
|
4133 |
void *library = NULL; |
9bbd930be684
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
18946
diff
changeset
|
4134 |
|
9bbd930be684
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
18946
diff
changeset
|
4135 |
if (!agent->valid()) { |
1 | 4136 |
char buffer[JVM_MAXPATHLEN]; |
27471 | 4137 |
char ebuf[1024] = ""; |
1 | 4138 |
const char *name = agent->name(); |
6189
9dcd5f57dcc3
6378314: Bad warning message when agent library not found. local directory is not searched.
rasbold
parents:
6176
diff
changeset
|
4139 |
const char *msg = "Could not find agent library "; |
1 | 4140 |
|
19973 | 4141 |
// First check to see if agent is statically linked into executable |
19553
9bbd930be684
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
18946
diff
changeset
|
4142 |
if (os::find_builtin_agent(agent, on_load_symbols, num_symbol_entries)) { |
9bbd930be684
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
18946
diff
changeset
|
4143 |
library = agent->os_lib(); |
9bbd930be684
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
18946
diff
changeset
|
4144 |
} else if (agent->is_absolute_path()) { |
7405
e6fc8d3926f8
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
7397
diff
changeset
|
4145 |
library = os::dll_load(name, ebuf, sizeof ebuf); |
1 | 4146 |
if (library == NULL) { |
6189
9dcd5f57dcc3
6378314: Bad warning message when agent library not found. local directory is not searched.
rasbold
parents:
6176
diff
changeset
|
4147 |
const char *sub_msg = " in absolute path, with error: "; |
9dcd5f57dcc3
6378314: Bad warning message when agent library not found. local directory is not searched.
rasbold
parents:
6176
diff
changeset
|
4148 |
size_t len = strlen(msg) + strlen(name) + strlen(sub_msg) + strlen(ebuf) + 1; |
13195 | 4149 |
char *buf = NEW_C_HEAP_ARRAY(char, len, mtThread); |
6189
9dcd5f57dcc3
6378314: Bad warning message when agent library not found. local directory is not searched.
rasbold
parents:
6176
diff
changeset
|
4150 |
jio_snprintf(buf, len, "%s%s%s%s", msg, name, sub_msg, ebuf); |
1 | 4151 |
// If we can't find the agent, exit. |
6189
9dcd5f57dcc3
6378314: Bad warning message when agent library not found. local directory is not searched.
rasbold
parents:
6176
diff
changeset
|
4152 |
vm_exit_during_initialization(buf, NULL); |
27880
afb974a04396
8060074: os::free() takes MemoryTrackingLevel but doesn't need it
coleenp
parents:
27656
diff
changeset
|
4153 |
FREE_C_HEAP_ARRAY(char, buf); |
1 | 4154 |
} |
4155 |
} else { |
|
4156 |
// Try to load the agent from the standard dll directory |
|
47089
27050b653624
8186072: dll_build_name returns true even if file is missing.
goetz
parents:
46974
diff
changeset
|
4157 |
if (os::dll_locate_lib(buffer, sizeof(buffer), Arguments::get_dll_dir(), |
14471
f3a6b82e25cf
8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
bpittore
parents:
14289
diff
changeset
|
4158 |
name)) { |
f3a6b82e25cf
8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
bpittore
parents:
14289
diff
changeset
|
4159 |
library = os::dll_load(buffer, ebuf, sizeof ebuf); |
f3a6b82e25cf
8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
bpittore
parents:
14289
diff
changeset
|
4160 |
} |
47089
27050b653624
8186072: dll_build_name returns true even if file is missing.
goetz
parents:
46974
diff
changeset
|
4161 |
if (library == NULL) { // Try the library path directory. |
27050b653624
8186072: dll_build_name returns true even if file is missing.
goetz
parents:
46974
diff
changeset
|
4162 |
if (os::dll_build_name(buffer, sizeof(buffer), name)) { |
14471
f3a6b82e25cf
8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
bpittore
parents:
14289
diff
changeset
|
4163 |
library = os::dll_load(buffer, ebuf, sizeof ebuf); |
f3a6b82e25cf
8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
bpittore
parents:
14289
diff
changeset
|
4164 |
} |
1 | 4165 |
if (library == NULL) { |
6189
9dcd5f57dcc3
6378314: Bad warning message when agent library not found. local directory is not searched.
rasbold
parents:
6176
diff
changeset
|
4166 |
const char *sub_msg = " on the library path, with error: "; |
48474
6e69aea2aee7
8180709: java -javaagent:agent.jar with run-time that does not contain java.instrument prints confusing error
gadams
parents:
48382
diff
changeset
|
4167 |
const char *sub_msg2 = "\nModule java.instrument may be missing from runtime image."; |
6e69aea2aee7
8180709: java -javaagent:agent.jar with run-time that does not contain java.instrument prints confusing error
gadams
parents:
48382
diff
changeset
|
4168 |
|
6e69aea2aee7
8180709: java -javaagent:agent.jar with run-time that does not contain java.instrument prints confusing error
gadams
parents:
48382
diff
changeset
|
4169 |
size_t len = strlen(msg) + strlen(name) + strlen(sub_msg) + |
6e69aea2aee7
8180709: java -javaagent:agent.jar with run-time that does not contain java.instrument prints confusing error
gadams
parents:
48382
diff
changeset
|
4170 |
strlen(ebuf) + strlen(sub_msg2) + 1; |
13195 | 4171 |
char *buf = NEW_C_HEAP_ARRAY(char, len, mtThread); |
48474
6e69aea2aee7
8180709: java -javaagent:agent.jar with run-time that does not contain java.instrument prints confusing error
gadams
parents:
48382
diff
changeset
|
4172 |
if (!agent->is_instrument_lib()) { |
6e69aea2aee7
8180709: java -javaagent:agent.jar with run-time that does not contain java.instrument prints confusing error
gadams
parents:
48382
diff
changeset
|
4173 |
jio_snprintf(buf, len, "%s%s%s%s", msg, name, sub_msg, ebuf); |
6e69aea2aee7
8180709: java -javaagent:agent.jar with run-time that does not contain java.instrument prints confusing error
gadams
parents:
48382
diff
changeset
|
4174 |
} else { |
6e69aea2aee7
8180709: java -javaagent:agent.jar with run-time that does not contain java.instrument prints confusing error
gadams
parents:
48382
diff
changeset
|
4175 |
jio_snprintf(buf, len, "%s%s%s%s%s", msg, name, sub_msg, ebuf, sub_msg2); |
6e69aea2aee7
8180709: java -javaagent:agent.jar with run-time that does not contain java.instrument prints confusing error
gadams
parents:
48382
diff
changeset
|
4176 |
} |
1 | 4177 |
// If we can't find the agent, exit. |
6189
9dcd5f57dcc3
6378314: Bad warning message when agent library not found. local directory is not searched.
rasbold
parents:
6176
diff
changeset
|
4178 |
vm_exit_during_initialization(buf, NULL); |
27880
afb974a04396
8060074: os::free() takes MemoryTrackingLevel but doesn't need it
coleenp
parents:
27656
diff
changeset
|
4179 |
FREE_C_HEAP_ARRAY(char, buf); |
1 | 4180 |
} |
4181 |
} |
|
4182 |
} |
|
4183 |
agent->set_os_lib(library); |
|
19553
9bbd930be684
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
18946
diff
changeset
|
4184 |
agent->set_valid(); |
1 | 4185 |
} |
4186 |
||
4187 |
// Find the OnLoad function. |
|
19553
9bbd930be684
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
18946
diff
changeset
|
4188 |
on_load_entry = |
9bbd930be684
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
18946
diff
changeset
|
4189 |
CAST_TO_FN_PTR(OnLoadEntry_t, os::find_agent_function(agent, |
9bbd930be684
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
18946
diff
changeset
|
4190 |
false, |
9bbd930be684
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
18946
diff
changeset
|
4191 |
on_load_symbols, |
9bbd930be684
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
18946
diff
changeset
|
4192 |
num_symbol_entries)); |
1 | 4193 |
return on_load_entry; |
4194 |
} |
|
4195 |
||
4196 |
// Find the JVM_OnLoad entry point |
|
4197 |
static OnLoadEntry_t lookup_jvm_on_load(AgentLibrary* agent) { |
|
4198 |
const char *on_load_symbols[] = JVM_ONLOAD_SYMBOLS; |
|
4199 |
return lookup_on_load(agent, on_load_symbols, sizeof(on_load_symbols) / sizeof(char*)); |
|
4200 |
} |
|
4201 |
||
4202 |
// Find the Agent_OnLoad entry point |
|
4203 |
static OnLoadEntry_t lookup_agent_on_load(AgentLibrary* agent) { |
|
4204 |
const char *on_load_symbols[] = AGENT_ONLOAD_SYMBOLS; |
|
4205 |
return lookup_on_load(agent, on_load_symbols, sizeof(on_load_symbols) / sizeof(char*)); |
|
4206 |
} |
|
4207 |
||
4208 |
// For backwards compatibility with -Xrun |
|
4209 |
// Convert libraries with no JVM_OnLoad, but which have Agent_OnLoad to be |
|
4210 |
// treated like -agentpath: |
|
4211 |
// Must be called before agent libraries are created |
|
4212 |
void Threads::convert_vm_init_libraries_to_agents() { |
|
4213 |
AgentLibrary* agent; |
|
4214 |
AgentLibrary* next; |
|
4215 |
||
4216 |
for (agent = Arguments::libraries(); agent != NULL; agent = next) { |
|
4217 |
next = agent->next(); // cache the next agent now as this agent may get moved off this list |
|
4218 |
OnLoadEntry_t on_load_entry = lookup_jvm_on_load(agent); |
|
4219 |
||
4220 |
// If there is an JVM_OnLoad function it will get called later, |
|
4221 |
// otherwise see if there is an Agent_OnLoad |
|
4222 |
if (on_load_entry == NULL) { |
|
4223 |
on_load_entry = lookup_agent_on_load(agent); |
|
4224 |
if (on_load_entry != NULL) { |
|
4225 |
// switch it to the agent list -- so that Agent_OnLoad will be called, |
|
4226 |
// JVM_OnLoad won't be attempted and Agent_OnUnload will |
|
4227 |
Arguments::convert_library_to_agent(agent); |
|
4228 |
} else { |
|
4229 |
vm_exit_during_initialization("Could not find JVM_OnLoad or Agent_OnLoad function in the library", agent->name()); |
|
4230 |
} |
|
4231 |
} |
|
4232 |
} |
|
4233 |
} |
|
4234 |
||
4235 |
// Create agents for -agentlib: -agentpath: and converted -Xrun |
|
4236 |
// Invokes Agent_OnLoad |
|
4237 |
// Called very early -- before JavaThreads exist |
|
4238 |
void Threads::create_vm_init_agents() { |
|
4239 |
extern struct JavaVM_ main_vm; |
|
4240 |
AgentLibrary* agent; |
|
4241 |
||
4242 |
JvmtiExport::enter_onload_phase(); |
|
13975
2f7431485cfa
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
13860
diff
changeset
|
4243 |
|
1 | 4244 |
for (agent = Arguments::agents(); agent != NULL; agent = agent->next()) { |
52596
dfa02b3f728c
8201375: Add the AllowArchivingWithJavaAgent diagnostic vm option to allow the use of the -javaagent option during CDS dumping
ccheung
parents:
52569
diff
changeset
|
4245 |
// CDS dumping does not support native JVMTI agent. |
dfa02b3f728c
8201375: Add the AllowArchivingWithJavaAgent diagnostic vm option to allow the use of the -javaagent option during CDS dumping
ccheung
parents:
52569
diff
changeset
|
4246 |
// CDS dumping supports Java agent if the AllowArchivingWithJavaAgent diagnostic option is specified. |
58447
319173c62caa
8231606: _method_ordering is not set during CDS dynamic dump time
ccheung
parents:
58291
diff
changeset
|
4247 |
if (Arguments::is_dumping_archive()) { |
52596
dfa02b3f728c
8201375: Add the AllowArchivingWithJavaAgent diagnostic vm option to allow the use of the -javaagent option during CDS dumping
ccheung
parents:
52569
diff
changeset
|
4248 |
if(!agent->is_instrument_lib()) { |
dfa02b3f728c
8201375: Add the AllowArchivingWithJavaAgent diagnostic vm option to allow the use of the -javaagent option during CDS dumping
ccheung
parents:
52569
diff
changeset
|
4249 |
vm_exit_during_cds_dumping("CDS dumping does not support native JVMTI agent, name", agent->name()); |
dfa02b3f728c
8201375: Add the AllowArchivingWithJavaAgent diagnostic vm option to allow the use of the -javaagent option during CDS dumping
ccheung
parents:
52569
diff
changeset
|
4250 |
} else if (!AllowArchivingWithJavaAgent) { |
dfa02b3f728c
8201375: Add the AllowArchivingWithJavaAgent diagnostic vm option to allow the use of the -javaagent option during CDS dumping
ccheung
parents:
52569
diff
changeset
|
4251 |
vm_exit_during_cds_dumping( |
dfa02b3f728c
8201375: Add the AllowArchivingWithJavaAgent diagnostic vm option to allow the use of the -javaagent option during CDS dumping
ccheung
parents:
52569
diff
changeset
|
4252 |
"Must enable AllowArchivingWithJavaAgent in order to run Java agent during CDS dumping"); |
dfa02b3f728c
8201375: Add the AllowArchivingWithJavaAgent diagnostic vm option to allow the use of the -javaagent option during CDS dumping
ccheung
parents:
52569
diff
changeset
|
4253 |
} |
dfa02b3f728c
8201375: Add the AllowArchivingWithJavaAgent diagnostic vm option to allow the use of the -javaagent option during CDS dumping
ccheung
parents:
52569
diff
changeset
|
4254 |
} |
dfa02b3f728c
8201375: Add the AllowArchivingWithJavaAgent diagnostic vm option to allow the use of the -javaagent option during CDS dumping
ccheung
parents:
52569
diff
changeset
|
4255 |
|
1 | 4256 |
OnLoadEntry_t on_load_entry = lookup_agent_on_load(agent); |
4257 |
||
4258 |
if (on_load_entry != NULL) { |
|
4259 |
// Invoke the Agent_OnLoad function |
|
4260 |
jint err = (*on_load_entry)(&main_vm, agent->options(), NULL); |
|
4261 |
if (err != JNI_OK) { |
|
4262 |
vm_exit_during_initialization("agent library failed to init", agent->name()); |
|
4263 |
} |
|
4264 |
} else { |
|
4265 |
vm_exit_during_initialization("Could not find Agent_OnLoad function in the agent library", agent->name()); |
|
4266 |
} |
|
4267 |
} |
|
52596
dfa02b3f728c
8201375: Add the AllowArchivingWithJavaAgent diagnostic vm option to allow the use of the -javaagent option during CDS dumping
ccheung
parents:
52569
diff
changeset
|
4268 |
|
1 | 4269 |
JvmtiExport::enter_primordial_phase(); |
4270 |
} |
|
4271 |
||
4272 |
extern "C" { |
|
4273 |
typedef void (JNICALL *Agent_OnUnload_t)(JavaVM *); |
|
4274 |
} |
|
4275 |
||
4276 |
void Threads::shutdown_vm_agents() { |
|
4277 |
// Send any Agent_OnUnload notifications |
|
4278 |
const char *on_unload_symbols[] = AGENT_ONUNLOAD_SYMBOLS; |
|
19553
9bbd930be684
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
18946
diff
changeset
|
4279 |
size_t num_symbol_entries = ARRAY_SIZE(on_unload_symbols); |
1 | 4280 |
extern struct JavaVM_ main_vm; |
4281 |
for (AgentLibrary* agent = Arguments::agents(); agent != NULL; agent = agent->next()) { |
|
4282 |
||
4283 |
// Find the Agent_OnUnload function. |
|
19553
9bbd930be684
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
18946
diff
changeset
|
4284 |
Agent_OnUnload_t unload_entry = CAST_TO_FN_PTR(Agent_OnUnload_t, |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4285 |
os::find_agent_function(agent, |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4286 |
false, |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4287 |
on_unload_symbols, |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4288 |
num_symbol_entries)); |
19553
9bbd930be684
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
18946
diff
changeset
|
4289 |
|
9bbd930be684
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
18946
diff
changeset
|
4290 |
// Invoke the Agent_OnUnload function |
9bbd930be684
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
18946
diff
changeset
|
4291 |
if (unload_entry != NULL) { |
9bbd930be684
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
18946
diff
changeset
|
4292 |
JavaThread* thread = JavaThread::current(); |
9bbd930be684
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
18946
diff
changeset
|
4293 |
ThreadToNativeFromVM ttn(thread); |
9bbd930be684
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
18946
diff
changeset
|
4294 |
HandleMark hm(thread); |
9bbd930be684
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
18946
diff
changeset
|
4295 |
(*unload_entry)(&main_vm); |
1 | 4296 |
} |
4297 |
} |
|
4298 |
} |
|
4299 |
||
4300 |
// Called for after the VM is initialized for -Xrun libraries which have not been converted to agent libraries |
|
4301 |
// Invokes JVM_OnLoad |
|
4302 |
void Threads::create_vm_init_libraries() { |
|
4303 |
extern struct JavaVM_ main_vm; |
|
4304 |
AgentLibrary* agent; |
|
4305 |
||
4306 |
for (agent = Arguments::libraries(); agent != NULL; agent = agent->next()) { |
|
4307 |
OnLoadEntry_t on_load_entry = lookup_jvm_on_load(agent); |
|
4308 |
||
4309 |
if (on_load_entry != NULL) { |
|
4310 |
// Invoke the JVM_OnLoad function |
|
4311 |
JavaThread* thread = JavaThread::current(); |
|
4312 |
ThreadToNativeFromVM ttn(thread); |
|
4313 |
HandleMark hm(thread); |
|
4314 |
jint err = (*on_load_entry)(&main_vm, agent->options(), NULL); |
|
4315 |
if (err != JNI_OK) { |
|
4316 |
vm_exit_during_initialization("-Xrun library failed to init", agent->name()); |
|
4317 |
} |
|
4318 |
} else { |
|
4319 |
vm_exit_during_initialization("Could not find JVM_OnLoad function in -Xrun library", agent->name()); |
|
4320 |
} |
|
4321 |
} |
|
4322 |
} |
|
4323 |
||
26834 | 4324 |
|
1 | 4325 |
// Last thread running calls java.lang.Shutdown.shutdown() |
4326 |
void JavaThread::invoke_shutdown_hooks() { |
|
4327 |
HandleMark hm(this); |
|
4328 |
||
4329 |
// We could get here with a pending exception, if so clear it now. |
|
4330 |
if (this->has_pending_exception()) { |
|
4331 |
this->clear_pending_exception(); |
|
4332 |
} |
|
4333 |
||
4334 |
EXCEPTION_MARK; |
|
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
46284
diff
changeset
|
4335 |
Klass* shutdown_klass = |
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
8061
diff
changeset
|
4336 |
SystemDictionary::resolve_or_null(vmSymbols::java_lang_Shutdown(), |
1 | 4337 |
THREAD); |
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
46284
diff
changeset
|
4338 |
if (shutdown_klass != NULL) { |
1 | 4339 |
// SystemDictionary::resolve_or_null will return null if there was |
4340 |
// an exception. If we cannot load the Shutdown class, just don't |
|
4341 |
// call Shutdown.shutdown() at all. This will mean the shutdown hooks |
|
48942
a6c4b85163c1
8198249: Remove deprecated Runtime::runFinalizersOnExit and System::runFinalizersOnExit
mchung
parents:
48823
diff
changeset
|
4342 |
// won't be run. Note that if a shutdown hook was registered, |
a6c4b85163c1
8198249: Remove deprecated Runtime::runFinalizersOnExit and System::runFinalizersOnExit
mchung
parents:
48823
diff
changeset
|
4343 |
// the Shutdown class would have already been loaded |
a6c4b85163c1
8198249: Remove deprecated Runtime::runFinalizersOnExit and System::runFinalizersOnExit
mchung
parents:
48823
diff
changeset
|
4344 |
// (Runtime.addShutdownHook will load it). |
1 | 4345 |
JavaValue result(T_VOID); |
4346 |
JavaCalls::call_static(&result, |
|
4347 |
shutdown_klass, |
|
54669
ad45b3802d4e
8220623: [JVMCI] Update JVMCI to support JVMCI based Compiler compiled into shared library
kvn
parents:
54647
diff
changeset
|
4348 |
vmSymbols::shutdown_name(), |
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
8061
diff
changeset
|
4349 |
vmSymbols::void_method_signature(), |
1 | 4350 |
THREAD); |
4351 |
} |
|
4352 |
CLEAR_PENDING_EXCEPTION; |
|
4353 |
} |
|
4354 |
||
4355 |
// Threads::destroy_vm() is normally called from jni_DestroyJavaVM() when |
|
4356 |
// the program falls off the end of main(). Another VM exit path is through |
|
4357 |
// vm_exit() when the program calls System.exit() to return a value or when |
|
4358 |
// there is a serious error in VM. The two shutdown paths are not exactly |
|
4359 |
// the same, but they share Shutdown.shutdown() at Java level and before_exit() |
|
4360 |
// and VM_Exit op at VM level. |
|
4361 |
// |
|
4362 |
// Shutdown sequence: |
|
13195 | 4363 |
// + Shutdown native memory tracking if it is on |
1 | 4364 |
// + Wait until we are the last non-daemon thread to execute |
4365 |
// <-- every thing is still working at this moment --> |
|
4366 |
// + Call java.lang.Shutdown.shutdown(), which will invoke Java level |
|
48942
a6c4b85163c1
8198249: Remove deprecated Runtime::runFinalizersOnExit and System::runFinalizersOnExit
mchung
parents:
48823
diff
changeset
|
4367 |
// shutdown hooks |
1 | 4368 |
// + Call before_exit(), prepare for VM exit |
4369 |
// > run VM level shutdown hooks (they are registered through JVM_OnExit(), |
|
4370 |
// currently the only user of this mechanism is File.deleteOnExit()) |
|
59053
ba6c248cae19
8232365: Implementation for JEP 363: Remove the Concurrent Mark Sweep (CMS) Garbage Collector
lkorinth
parents:
58956
diff
changeset
|
4371 |
// > stop StatSampler, watcher thread, |
1 | 4372 |
// post thread end and vm death events to JVMTI, |
4373 |
// stop signal thread |
|
4374 |
// + Call JavaThread::exit(), it will: |
|
4375 |
// > release JNI handle blocks, remove stack guard pages |
|
4376 |
// > remove this thread from Threads list |
|
4377 |
// <-- no more Java code from this thread after this point --> |
|
4378 |
// + Stop VM thread, it will bring the remaining VM to a safepoint and stop |
|
4379 |
// the compiler threads at safepoint |
|
4380 |
// <-- do not use anything that could get blocked by Safepoint --> |
|
4381 |
// + Disable tracing at JNI/JVM barriers |
|
4382 |
// + Set _vm_exited flag for threads that are still running native code |
|
4383 |
// + Call exit_globals() |
|
4384 |
// > deletes tty |
|
4385 |
// > deletes PerfMemory resources |
|
52097 | 4386 |
// + Delete this thread |
1 | 4387 |
// + Return to caller |
4388 |
||
4389 |
bool Threads::destroy_vm() { |
|
4390 |
JavaThread* thread = JavaThread::current(); |
|
4391 |
||
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
4392 |
#ifdef ASSERT |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
4393 |
_vm_complete = false; |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
4394 |
#endif |
1 | 4395 |
// Wait until we are the last non-daemon thread to execute |
54645
05aaccf7d558
8222988: Use MonitorLocker rather than MutexLocker when wait/notify used
coleenp
parents:
54631
diff
changeset
|
4396 |
{ MonitorLocker nu(Threads_lock); |
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
4397 |
while (Threads::number_of_non_daemon_threads() > 1) |
1 | 4398 |
// This wait should make safepoint checks, wait without a timeout, |
4399 |
// and wait as a suspend-equivalent condition. |
|
54645
05aaccf7d558
8222988: Use MonitorLocker rather than MutexLocker when wait/notify used
coleenp
parents:
54631
diff
changeset
|
4400 |
nu.wait(0, Mutex::_as_suspend_equivalent_flag); |
1 | 4401 |
} |
4402 |
||
49176 | 4403 |
EventShutdown e; |
4404 |
if (e.should_commit()) { |
|
4405 |
e.set_reason("No remaining non-daemon Java threads"); |
|
4406 |
e.commit(); |
|
4407 |
} |
|
4408 |
||
1 | 4409 |
// Hang forever on exit if we are reporting an error. |
46589 | 4410 |
if (ShowMessageBoxOnError && VMError::is_error_reported()) { |
1 | 4411 |
os::infinite_sleep(); |
4412 |
} |
|
8476
7e34c2d4cf9b
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
8118
diff
changeset
|
4413 |
os::wait_for_keypress_at_exit(); |
1 | 4414 |
|
25057 | 4415 |
// run Java level shutdown hooks |
4416 |
thread->invoke_shutdown_hooks(); |
|
1 | 4417 |
|
4418 |
before_exit(thread); |
|
4419 |
||
4420 |
thread->exit(true); |
|
4421 |
||
4422 |
// Stop VM thread. |
|
4423 |
{ |
|
4424 |
// 4945125 The vm thread comes to a safepoint during exit. |
|
4425 |
// GC vm_operations can get caught at the safepoint, and the |
|
4426 |
// heap is unparseable if they are caught. Grab the Heap_lock |
|
4427 |
// to prevent this. The GC vm_operations will not be able to |
|
25070 | 4428 |
// queue until after the vm thread is dead. After this point, |
4429 |
// we'll never emerge out of the safepoint before the VM exits. |
|
9992
0d82cce3e655
7051430: CMS: ongoing CMS cycle should terminate abruptly to allow prompt JVM termination at exit
ysr
parents:
9946
diff
changeset
|
4430 |
|
54623
1126f0607c70
8222811: Consolidate MutexLockerEx and MutexLocker
coleenp
parents:
54495
diff
changeset
|
4431 |
MutexLocker ml(Heap_lock, Mutex::_no_safepoint_check_flag); |
1 | 4432 |
|
4433 |
VMThread::wait_for_vm_thread_exit(); |
|
4434 |
assert(SafepointSynchronize::is_at_safepoint(), "VM thread should exit at Safepoint"); |
|
4435 |
VMThread::destroy(); |
|
4436 |
} |
|
4437 |
||
4438 |
// Now, all Java threads are gone except daemon threads. Daemon threads |
|
4439 |
// running Java code or in VM are stopped by the Safepoint. However, |
|
4440 |
// daemon threads executing native code are still running. But they |
|
4441 |
// will be stopped at native=>Java/VM barriers. Note that we can't |
|
4442 |
// simply kill or suspend them, as it is inherently deadlock-prone. |
|
4443 |
||
4444 |
VM_Exit::set_vm_exited(); |
|
4445 |
||
49636 | 4446 |
// Clean up ideal graph printers after the VMThread has started |
4447 |
// the final safepoint which will block all the Compiler threads. |
|
4448 |
// Note that this Thread has already logically exited so the |
|
4449 |
// clean_up() function's use of a JavaThreadIteratorWithHandle |
|
4450 |
// would be a problem except set_vm_exited() has remembered the |
|
4451 |
// shutdown thread which is granted a policy exception. |
|
4452 |
#if defined(COMPILER2) && !defined(PRODUCT) |
|
4453 |
IdealGraphPrinter::clean_up(); |
|
4454 |
#endif |
|
4455 |
||
1 | 4456 |
notify_vm_shutdown(); |
4457 |
||
52097 | 4458 |
// exit_globals() will delete tty |
4459 |
exit_globals(); |
|
4460 |
||
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4461 |
// We are after VM_Exit::set_vm_exited() so we can't call |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4462 |
// thread->smr_delete() or we will block on the Threads_lock. |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4463 |
// Deleting the shutdown thread here is safe because another |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4464 |
// JavaThread cannot have an active ThreadsListHandle for |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4465 |
// this JavaThread. |
1 | 4466 |
delete thread; |
4467 |
||
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
4468 |
#if INCLUDE_JVMCI |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
4469 |
if (JVMCICounterSize > 0) { |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
4470 |
FREE_C_HEAP_ARRAY(jlong, JavaThread::_jvmci_old_thread_counters); |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
4471 |
} |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
4472 |
#endif |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
4473 |
|
33097 | 4474 |
LogConfiguration::finalize(); |
4475 |
||
1 | 4476 |
return true; |
4477 |
} |
|
4478 |
||
4479 |
||
4480 |
jboolean Threads::is_supported_jni_version_including_1_1(jint version) { |
|
4481 |
if (version == JNI_VERSION_1_1) return JNI_TRUE; |
|
4482 |
return is_supported_jni_version(version); |
|
4483 |
} |
|
4484 |
||
4485 |
||
4486 |
jboolean Threads::is_supported_jni_version(jint version) { |
|
4487 |
if (version == JNI_VERSION_1_2) return JNI_TRUE; |
|
4488 |
if (version == JNI_VERSION_1_4) return JNI_TRUE; |
|
4489 |
if (version == JNI_VERSION_1_6) return JNI_TRUE; |
|
16394
b5940f63d436
8005716: Enhance JNI specification to allow support of static JNI libraries in Embedded JREs
bpittore
parents:
15853
diff
changeset
|
4490 |
if (version == JNI_VERSION_1_8) return JNI_TRUE; |
36396
26a241a959de
8145098: JNI GetVersion should return JNI_VERSION_9
rprotacio
parents:
36384
diff
changeset
|
4491 |
if (version == JNI_VERSION_9) return JNI_TRUE; |
47613
af241e3e5a13
8188052: JNI FindClass needs to specify the class loading context used for library lifecycle hooks
mchung
parents:
47600
diff
changeset
|
4492 |
if (version == JNI_VERSION_10) return JNI_TRUE; |
1 | 4493 |
return JNI_FALSE; |
4494 |
} |
|
4495 |
||
4496 |
||
4497 |
void Threads::add(JavaThread* p, bool force_daemon) { |
|
4498 |
// The threads lock must be owned at this point |
|
52297
99962c340e73
8021335: Missing synchronization when reading counters for live threads and peak thread count
dlong
parents:
52148
diff
changeset
|
4499 |
assert(Threads_lock->owned_by_self(), "must have threads lock"); |
6768
71338ecb7813
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
6764
diff
changeset
|
4500 |
|
49007
82d9d5744e5f
8197994: Move JavaThread::initialize_queues() logic to G1SATBCardTableLoggingModRefBS
pliden
parents:
49006
diff
changeset
|
4501 |
BarrierSet::barrier_set()->on_thread_attach(p); |
82d9d5744e5f
8197994: Move JavaThread::initialize_queues() logic to G1SATBCardTableLoggingModRefBS
pliden
parents:
49006
diff
changeset
|
4502 |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4503 |
// Once a JavaThread is added to the Threads list, smr_delete() has |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4504 |
// to be used to delete it. Otherwise we can just delete it directly. |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4505 |
p->set_on_thread_list(); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4506 |
|
1 | 4507 |
_number_of_threads++; |
4508 |
oop threadObj = p->threadObj(); |
|
4509 |
bool daemon = true; |
|
4510 |
// Bootstrapping problem: threadObj can be null for initial |
|
4511 |
// JavaThread (or for threads attached via JNI) |
|
52297
99962c340e73
8021335: Missing synchronization when reading counters for live threads and peak thread count
dlong
parents:
52148
diff
changeset
|
4512 |
if ((!force_daemon) && !is_daemon((threadObj))) { |
1 | 4513 |
_number_of_non_daemon_threads++; |
4514 |
daemon = false; |
|
4515 |
} |
|
4516 |
||
4517 |
ThreadService::add_thread(p, daemon); |
|
4518 |
||
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4519 |
// Maintain fast thread list |
48312
2a1413298af0
8191789: migrate more Thread-SMR stuff from thread.[ch]pp -> threadSMR.[ch]pp
dcubed
parents:
48173
diff
changeset
|
4520 |
ThreadsSMRSupport::add_thread(p); |
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4521 |
|
1 | 4522 |
// Possible GC point. |
33148
68fa8b6c4340
8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents:
33107
diff
changeset
|
4523 |
Events::log(p, "Thread added: " INTPTR_FORMAT, p2i(p)); |
1 | 4524 |
} |
4525 |
||
54416
b788c494aa46
8218483: Crash in "assert(_daemon_threads_count->get_value() > daemon_count) failed: thread count mismatch 5 : 5"
dholmes
parents:
54385
diff
changeset
|
4526 |
void Threads::remove(JavaThread* p, bool is_daemon) { |
46484
688e3a206b86
8180599: Possibly miss to iterate monitors on thread exit
rkennke
parents:
46474
diff
changeset
|
4527 |
|
57906
e17f768b3b71
8230184: rename, whitespace, indent and comments changes in preparation for lock free Monitor lists
dcubed
parents:
57840
diff
changeset
|
4528 |
// Reclaim the ObjectMonitors from the om_in_use_list and om_free_list of the moribund thread. |
e17f768b3b71
8230184: rename, whitespace, indent and comments changes in preparation for lock free Monitor lists
dcubed
parents:
57840
diff
changeset
|
4529 |
ObjectSynchronizer::om_flush(p); |
46484
688e3a206b86
8180599: Possibly miss to iterate monitors on thread exit
rkennke
parents:
46474
diff
changeset
|
4530 |
|
1 | 4531 |
// Extra scope needed for Thread_lock, so we can check |
4532 |
// that we do not remove thread without safepoint code notice |
|
54645
05aaccf7d558
8222988: Use MonitorLocker rather than MutexLocker when wait/notify used
coleenp
parents:
54631
diff
changeset
|
4533 |
{ MonitorLocker ml(Threads_lock); |
1 | 4534 |
|
48382
0997d6959851
8193135: get rid of redundant _smr_ prefix/infix in ThreadSMRSupport stuff
dcubed
parents:
48312
diff
changeset
|
4535 |
assert(ThreadsSMRSupport::get_java_thread_list()->includes(p), "p must be present"); |
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4536 |
|
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4537 |
// Maintain fast thread list |
48312
2a1413298af0
8191789: migrate more Thread-SMR stuff from thread.[ch]pp -> threadSMR.[ch]pp
dcubed
parents:
48173
diff
changeset
|
4538 |
ThreadsSMRSupport::remove_thread(p); |
1 | 4539 |
|
4540 |
_number_of_threads--; |
|
54416
b788c494aa46
8218483: Crash in "assert(_daemon_threads_count->get_value() > daemon_count) failed: thread count mismatch 5 : 5"
dholmes
parents:
54385
diff
changeset
|
4541 |
if (!is_daemon) { |
1 | 4542 |
_number_of_non_daemon_threads--; |
4543 |
||
4544 |
// Only one thread left, do a notify on the Threads_lock so a thread waiting |
|
4545 |
// on destroy_vm will wake up. |
|
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
4546 |
if (number_of_non_daemon_threads() == 1) { |
54645
05aaccf7d558
8222988: Use MonitorLocker rather than MutexLocker when wait/notify used
coleenp
parents:
54631
diff
changeset
|
4547 |
ml.notify_all(); |
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
4548 |
} |
1 | 4549 |
} |
54416
b788c494aa46
8218483: Crash in "assert(_daemon_threads_count->get_value() > daemon_count) failed: thread count mismatch 5 : 5"
dholmes
parents:
54385
diff
changeset
|
4550 |
ThreadService::remove_thread(p, is_daemon); |
1 | 4551 |
|
4552 |
// Make sure that safepoint code disregard this thread. This is needed since |
|
4553 |
// the thread might mess around with locks after this point. This can cause it |
|
4554 |
// to do callbacks into the safepoint code. However, the safepoint code is not aware |
|
4555 |
// of this thread since it is removed from the queue. |
|
4556 |
p->set_terminated_value(); |
|
4557 |
} // unlock Threads_lock |
|
4558 |
||
4559 |
// Since Events::log uses a lock, we grab it outside the Threads_lock |
|
33148
68fa8b6c4340
8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents:
33107
diff
changeset
|
4560 |
Events::log(p, "Thread exited: " INTPTR_FORMAT, p2i(p)); |
1 | 4561 |
} |
4562 |
||
4563 |
// Operations on the Threads list for GC. These are not explicitly locked, |
|
4564 |
// but the garbage collector must provide a safe context for them to run. |
|
4565 |
// In particular, these things should never be called when the Threads_lock |
|
4566 |
// is held by some other thread. (Note: the Safepoint abstraction also |
|
22551 | 4567 |
// uses the Threads_lock to guarantee this property. It also makes sure that |
1 | 4568 |
// all threads gets blocked when exiting or starting). |
4569 |
||
38074
8475fdc6dcc3
8154580: Save mirror in interpreter frame to enable cleanups of CLDClosure
coleenp
parents:
37477
diff
changeset
|
4570 |
void Threads::oops_do(OopClosure* f, CodeBlobClosure* cf) { |
1 | 4571 |
ALL_JAVA_THREADS(p) { |
38074
8475fdc6dcc3
8154580: Save mirror in interpreter frame to enable cleanups of CLDClosure
coleenp
parents:
37477
diff
changeset
|
4572 |
p->oops_do(f, cf); |
8475fdc6dcc3
8154580: Save mirror in interpreter frame to enable cleanups of CLDClosure
coleenp
parents:
37477
diff
changeset
|
4573 |
} |
8475fdc6dcc3
8154580: Save mirror in interpreter frame to enable cleanups of CLDClosure
coleenp
parents:
37477
diff
changeset
|
4574 |
VMThread::vm_thread()->oops_do(f, cf); |
1 | 4575 |
} |
4576 |
||
54385
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54366
diff
changeset
|
4577 |
void Threads::change_thread_claim_token() { |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54366
diff
changeset
|
4578 |
if (++_thread_claim_token == 0) { |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54366
diff
changeset
|
4579 |
// On overflow of the token counter, there is a risk of future |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54366
diff
changeset
|
4580 |
// collisions between a new global token value and a stale token |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54366
diff
changeset
|
4581 |
// for a thread, because not all iterations visit all threads. |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54366
diff
changeset
|
4582 |
// (Though it's pretty much a theoretical concern for non-trivial |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54366
diff
changeset
|
4583 |
// token counter sizes.) To deal with the possibility, reset all |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54366
diff
changeset
|
4584 |
// the thread tokens to zero on global token overflow. |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54366
diff
changeset
|
4585 |
struct ResetClaims : public ThreadClosure { |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54366
diff
changeset
|
4586 |
virtual void do_thread(Thread* t) { |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54366
diff
changeset
|
4587 |
t->claim_threads_do(false, 0); |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54366
diff
changeset
|
4588 |
} |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54366
diff
changeset
|
4589 |
} reset_claims; |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54366
diff
changeset
|
4590 |
Threads::threads_do(&reset_claims); |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54366
diff
changeset
|
4591 |
// On overflow, update the global token to non-zero, to |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54366
diff
changeset
|
4592 |
// avoid the special "never claimed" initial thread value. |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54366
diff
changeset
|
4593 |
_thread_claim_token = 1; |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54366
diff
changeset
|
4594 |
} |
29802
d485440c958a
8076225: Move the thread claim parity from SharedHeap to Thread
mgerdin
parents:
29699
diff
changeset
|
4595 |
} |
d485440c958a
8076225: Move the thread claim parity from SharedHeap to Thread
mgerdin
parents:
29699
diff
changeset
|
4596 |
|
30174 | 4597 |
#ifdef ASSERT |
54385
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54366
diff
changeset
|
4598 |
void assert_thread_claimed(const char* kind, Thread* t, uintx expected) { |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54366
diff
changeset
|
4599 |
const uintx token = t->threads_do_token(); |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54366
diff
changeset
|
4600 |
assert(token == expected, |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54366
diff
changeset
|
4601 |
"%s " PTR_FORMAT " has incorrect value " UINTX_FORMAT " != " |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54366
diff
changeset
|
4602 |
UINTX_FORMAT, kind, p2i(t), token, expected); |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54366
diff
changeset
|
4603 |
} |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54366
diff
changeset
|
4604 |
|
29802
d485440c958a
8076225: Move the thread claim parity from SharedHeap to Thread
mgerdin
parents:
29699
diff
changeset
|
4605 |
void Threads::assert_all_threads_claimed() { |
d485440c958a
8076225: Move the thread claim parity from SharedHeap to Thread
mgerdin
parents:
29699
diff
changeset
|
4606 |
ALL_JAVA_THREADS(p) { |
54385
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54366
diff
changeset
|
4607 |
assert_thread_claimed("Thread", p, _thread_claim_token); |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54366
diff
changeset
|
4608 |
} |
9559ba212c18
8221102: Allow GC threads to participate in threads claiming protocol
kbarrett
parents:
54366
diff
changeset
|
4609 |
assert_thread_claimed("VMThread", VMThread::vm_thread(), _thread_claim_token); |
29802
d485440c958a
8076225: Move the thread claim parity from SharedHeap to Thread
mgerdin
parents:
29699
diff
changeset
|
4610 |
} |
30174 | 4611 |
#endif // ASSERT |
29802
d485440c958a
8076225: Move the thread claim parity from SharedHeap to Thread
mgerdin
parents:
29699
diff
changeset
|
4612 |
|
47637
87141990dde5
8185580: Refactor Threads::possibly_parallel_oops_do() to use Threads::parallel_java_threads_do()
rkennke
parents:
47634
diff
changeset
|
4613 |
class ParallelOopsDoThreadClosure : public ThreadClosure { |
87141990dde5
8185580: Refactor Threads::possibly_parallel_oops_do() to use Threads::parallel_java_threads_do()
rkennke
parents:
47634
diff
changeset
|
4614 |
private: |
87141990dde5
8185580: Refactor Threads::possibly_parallel_oops_do() to use Threads::parallel_java_threads_do()
rkennke
parents:
47634
diff
changeset
|
4615 |
OopClosure* _f; |
87141990dde5
8185580: Refactor Threads::possibly_parallel_oops_do() to use Threads::parallel_java_threads_do()
rkennke
parents:
47634
diff
changeset
|
4616 |
CodeBlobClosure* _cf; |
87141990dde5
8185580: Refactor Threads::possibly_parallel_oops_do() to use Threads::parallel_java_threads_do()
rkennke
parents:
47634
diff
changeset
|
4617 |
public: |
87141990dde5
8185580: Refactor Threads::possibly_parallel_oops_do() to use Threads::parallel_java_threads_do()
rkennke
parents:
47634
diff
changeset
|
4618 |
ParallelOopsDoThreadClosure(OopClosure* f, CodeBlobClosure* cf) : _f(f), _cf(cf) {} |
87141990dde5
8185580: Refactor Threads::possibly_parallel_oops_do() to use Threads::parallel_java_threads_do()
rkennke
parents:
47634
diff
changeset
|
4619 |
void do_thread(Thread* t) { |
87141990dde5
8185580: Refactor Threads::possibly_parallel_oops_do() to use Threads::parallel_java_threads_do()
rkennke
parents:
47634
diff
changeset
|
4620 |
t->oops_do(_f, _cf); |
87141990dde5
8185580: Refactor Threads::possibly_parallel_oops_do() to use Threads::parallel_java_threads_do()
rkennke
parents:
47634
diff
changeset
|
4621 |
} |
87141990dde5
8185580: Refactor Threads::possibly_parallel_oops_do() to use Threads::parallel_java_threads_do()
rkennke
parents:
47634
diff
changeset
|
4622 |
}; |
87141990dde5
8185580: Refactor Threads::possibly_parallel_oops_do() to use Threads::parallel_java_threads_do()
rkennke
parents:
47634
diff
changeset
|
4623 |
|
38074
8475fdc6dcc3
8154580: Save mirror in interpreter frame to enable cleanups of CLDClosure
coleenp
parents:
37477
diff
changeset
|
4624 |
void Threads::possibly_parallel_oops_do(bool is_par, OopClosure* f, CodeBlobClosure* cf) { |
47637
87141990dde5
8185580: Refactor Threads::possibly_parallel_oops_do() to use Threads::parallel_java_threads_do()
rkennke
parents:
47634
diff
changeset
|
4625 |
ParallelOopsDoThreadClosure tc(f, cf); |
87141990dde5
8185580: Refactor Threads::possibly_parallel_oops_do() to use Threads::parallel_java_threads_do()
rkennke
parents:
47634
diff
changeset
|
4626 |
possibly_parallel_threads_do(is_par, &tc); |
1 | 4627 |
} |
4628 |
||
3908
24b55ad4c228
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
3261
diff
changeset
|
4629 |
void Threads::nmethods_do(CodeBlobClosure* cf) { |
1 | 4630 |
ALL_JAVA_THREADS(p) { |
37288
a31d47bbbdf6
8074553: Crash with assert(!is_unloaded()) failed: should not call follow on unloaded nmethod
thartmann
parents:
36616
diff
changeset
|
4631 |
// This is used by the code cache sweeper to mark nmethods that are active |
a31d47bbbdf6
8074553: Crash with assert(!is_unloaded()) failed: should not call follow on unloaded nmethod
thartmann
parents:
36616
diff
changeset
|
4632 |
// on the stack of a Java thread. Ignore the sweeper thread itself to avoid |
38133
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
37477
diff
changeset
|
4633 |
// marking CodeCacheSweeperThread::_scanned_compiled_method as active. |
37288
a31d47bbbdf6
8074553: Crash with assert(!is_unloaded()) failed: should not call follow on unloaded nmethod
thartmann
parents:
36616
diff
changeset
|
4634 |
if(!p->is_Code_cache_sweeper_thread()) { |
a31d47bbbdf6
8074553: Crash with assert(!is_unloaded()) failed: should not call follow on unloaded nmethod
thartmann
parents:
36616
diff
changeset
|
4635 |
p->nmethods_do(cf); |
a31d47bbbdf6
8074553: Crash with assert(!is_unloaded()) failed: should not call follow on unloaded nmethod
thartmann
parents:
36616
diff
changeset
|
4636 |
} |
a31d47bbbdf6
8074553: Crash with assert(!is_unloaded()) failed: should not call follow on unloaded nmethod
thartmann
parents:
36616
diff
changeset
|
4637 |
} |
1 | 4638 |
} |
4639 |
||
54150
5529640c5f67
8220512: Deoptimize redefinition functions that have dirty ICs
coleenp
parents:
54015
diff
changeset
|
4640 |
void Threads::metadata_do(MetadataClosure* f) { |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
4641 |
ALL_JAVA_THREADS(p) { |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
4642 |
p->metadata_do(f); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
4643 |
} |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
4644 |
} |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13196
diff
changeset
|
4645 |
|
29576
c223b0a9872e
8061205: MetadataOnStackMark only needs to walk code cache during class redefinition
coleenp
parents:
29332
diff
changeset
|
4646 |
class ThreadHandlesClosure : public ThreadClosure { |
c223b0a9872e
8061205: MetadataOnStackMark only needs to walk code cache during class redefinition
coleenp
parents:
29332
diff
changeset
|
4647 |
void (*_f)(Metadata*); |
c223b0a9872e
8061205: MetadataOnStackMark only needs to walk code cache during class redefinition
coleenp
parents:
29332
diff
changeset
|
4648 |
public: |
c223b0a9872e
8061205: MetadataOnStackMark only needs to walk code cache during class redefinition
coleenp
parents:
29332
diff
changeset
|
4649 |
ThreadHandlesClosure(void f(Metadata*)) : _f(f) {} |
c223b0a9872e
8061205: MetadataOnStackMark only needs to walk code cache during class redefinition
coleenp
parents:
29332
diff
changeset
|
4650 |
virtual void do_thread(Thread* thread) { |
c223b0a9872e
8061205: MetadataOnStackMark only needs to walk code cache during class redefinition
coleenp
parents:
29332
diff
changeset
|
4651 |
thread->metadata_handles_do(_f); |
c223b0a9872e
8061205: MetadataOnStackMark only needs to walk code cache during class redefinition
coleenp
parents:
29332
diff
changeset
|
4652 |
} |
c223b0a9872e
8061205: MetadataOnStackMark only needs to walk code cache during class redefinition
coleenp
parents:
29332
diff
changeset
|
4653 |
}; |
c223b0a9872e
8061205: MetadataOnStackMark only needs to walk code cache during class redefinition
coleenp
parents:
29332
diff
changeset
|
4654 |
|
c223b0a9872e
8061205: MetadataOnStackMark only needs to walk code cache during class redefinition
coleenp
parents:
29332
diff
changeset
|
4655 |
void Threads::metadata_handles_do(void f(Metadata*)) { |
c223b0a9872e
8061205: MetadataOnStackMark only needs to walk code cache during class redefinition
coleenp
parents:
29332
diff
changeset
|
4656 |
// Only walk the Handles in Thread. |
c223b0a9872e
8061205: MetadataOnStackMark only needs to walk code cache during class redefinition
coleenp
parents:
29332
diff
changeset
|
4657 |
ThreadHandlesClosure handles_closure(f); |
c223b0a9872e
8061205: MetadataOnStackMark only needs to walk code cache during class redefinition
coleenp
parents:
29332
diff
changeset
|
4658 |
threads_do(&handles_closure); |
c223b0a9872e
8061205: MetadataOnStackMark only needs to walk code cache during class redefinition
coleenp
parents:
29332
diff
changeset
|
4659 |
} |
c223b0a9872e
8061205: MetadataOnStackMark only needs to walk code cache during class redefinition
coleenp
parents:
29332
diff
changeset
|
4660 |
|
1 | 4661 |
// Get count Java threads that are waiting to enter the specified monitor. |
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4662 |
GrowableArray<JavaThread*>* Threads::get_pending_threads(ThreadsList * t_list, |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4663 |
int count, |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4664 |
address monitor) { |
1 | 4665 |
GrowableArray<JavaThread*>* result = new GrowableArray<JavaThread*>(count); |
4666 |
||
4667 |
int i = 0; |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4668 |
DO_JAVA_THREADS(t_list, p) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4669 |
if (!p->can_call_java()) continue; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4670 |
|
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4671 |
address pending = (address)p->current_pending_monitor(); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4672 |
if (pending == monitor) { // found a match |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4673 |
if (i < count) result->append(p); // save the first count matches |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4674 |
i++; |
1 | 4675 |
} |
4676 |
} |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4677 |
|
1 | 4678 |
return result; |
4679 |
} |
|
4680 |
||
4681 |
||
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4682 |
JavaThread *Threads::owning_thread_from_monitor_owner(ThreadsList * t_list, |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4683 |
address owner) { |
1 | 4684 |
// NULL owner means not locked so we can skip the search |
4685 |
if (owner == NULL) return NULL; |
|
4686 |
||
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4687 |
DO_JAVA_THREADS(t_list, p) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4688 |
// first, see if owner is the address of a Java thread |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4689 |
if (owner == (address)p) return p; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4690 |
} |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4691 |
|
15853
1c4e16950e96
8007476: assert(the_owner != NULL) failed: Did not find owning Java thread for lock word address
dcubed
parents:
15611
diff
changeset
|
4692 |
// Cannot assert on lack of success here since this function may be |
1c4e16950e96
8007476: assert(the_owner != NULL) failed: Did not find owning Java thread for lock word address
dcubed
parents:
15611
diff
changeset
|
4693 |
// used by code that is trying to report useful problem information |
1c4e16950e96
8007476: assert(the_owner != NULL) failed: Did not find owning Java thread for lock word address
dcubed
parents:
15611
diff
changeset
|
4694 |
// like deadlock detection. |
1 | 4695 |
if (UseHeavyMonitors) return NULL; |
4696 |
||
4697 |
// If we didn't find a matching Java thread and we didn't force use of |
|
4698 |
// heavyweight monitors, then the owner is the stack address of the |
|
4699 |
// Lock Word in the owning Java thread's stack. |
|
4700 |
// |
|
4701 |
JavaThread* the_owner = NULL; |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4702 |
DO_JAVA_THREADS(t_list, q) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4703 |
if (q->is_lock_owned(owner)) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4704 |
the_owner = q; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4705 |
break; |
1 | 4706 |
} |
4707 |
} |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4708 |
|
15853
1c4e16950e96
8007476: assert(the_owner != NULL) failed: Did not find owning Java thread for lock word address
dcubed
parents:
15611
diff
changeset
|
4709 |
// cannot assert on lack of success here; see above comment |
1 | 4710 |
return the_owner; |
4711 |
} |
|
4712 |
||
4713 |
// Threads::print_on() is called at safepoint by VM_PrintThreads operation. |
|
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
4714 |
void Threads::print_on(outputStream* st, bool print_stacks, |
50785
d1b24f2ceca5
8200720: Print additional information in thread dump (times, allocated bytes etc.)
ghaug
parents:
50626
diff
changeset
|
4715 |
bool internal_format, bool print_concurrent_locks, |
d1b24f2ceca5
8200720: Print additional information in thread dump (times, allocated bytes etc.)
ghaug
parents:
50626
diff
changeset
|
4716 |
bool print_extended_info) { |
1 | 4717 |
char buf[32]; |
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32366
diff
changeset
|
4718 |
st->print_raw_cr(os::local_time_string(buf, sizeof(buf))); |
1 | 4719 |
|
4720 |
st->print_cr("Full thread dump %s (%s %s):", |
|
52148
2d9f8845d0ae
7041262: VM_Version should be called instead of Abstract_VM_Version so that overriding works
hseigel
parents:
52097
diff
changeset
|
4721 |
VM_Version::vm_name(), |
2d9f8845d0ae
7041262: VM_Version should be called instead of Abstract_VM_Version so that overriding works
hseigel
parents:
52097
diff
changeset
|
4722 |
VM_Version::vm_release(), |
2d9f8845d0ae
7041262: VM_Version should be called instead of Abstract_VM_Version so that overriding works
hseigel
parents:
52097
diff
changeset
|
4723 |
VM_Version::vm_info_string()); |
1 | 4724 |
st->cr(); |
4725 |
||
30567
497b3caa8243
8078601: print_concurrent_locks should be guarded with INCLUDE_SERVICES
stefank
parents:
30175
diff
changeset
|
4726 |
#if INCLUDE_SERVICES |
1 | 4727 |
// Dump concurrent locks |
4728 |
ConcurrentLocksDump concurrent_locks; |
|
4729 |
if (print_concurrent_locks) { |
|
4730 |
concurrent_locks.dump_at_safepoint(); |
|
4731 |
} |
|
30567
497b3caa8243
8078601: print_concurrent_locks should be guarded with INCLUDE_SERVICES
stefank
parents:
30175
diff
changeset
|
4732 |
#endif // INCLUDE_SERVICES |
1 | 4733 |
|
48382
0997d6959851
8193135: get rid of redundant _smr_ prefix/infix in ThreadSMRSupport stuff
dcubed
parents:
48312
diff
changeset
|
4734 |
ThreadsSMRSupport::print_info_on(st); |
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4735 |
st->cr(); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4736 |
|
1 | 4737 |
ALL_JAVA_THREADS(p) { |
4738 |
ResourceMark rm; |
|
50785
d1b24f2ceca5
8200720: Print additional information in thread dump (times, allocated bytes etc.)
ghaug
parents:
50626
diff
changeset
|
4739 |
p->print_on(st, print_extended_info); |
1 | 4740 |
if (print_stacks) { |
4741 |
if (internal_format) { |
|
4742 |
p->trace_stack(); |
|
4743 |
} else { |
|
4744 |
p->print_stack_on(st); |
|
4745 |
} |
|
4746 |
} |
|
4747 |
st->cr(); |
|
30567
497b3caa8243
8078601: print_concurrent_locks should be guarded with INCLUDE_SERVICES
stefank
parents:
30175
diff
changeset
|
4748 |
#if INCLUDE_SERVICES |
1 | 4749 |
if (print_concurrent_locks) { |
4750 |
concurrent_locks.print_locks_on(p, st); |
|
4751 |
} |
|
30567
497b3caa8243
8078601: print_concurrent_locks should be guarded with INCLUDE_SERVICES
stefank
parents:
30175
diff
changeset
|
4752 |
#endif // INCLUDE_SERVICES |
1 | 4753 |
} |
4754 |
||
4755 |
VMThread::vm_thread()->print_on(st); |
|
4756 |
st->cr(); |
|
4757 |
Universe::heap()->print_gc_threads_on(st); |
|
4758 |
WatcherThread* wt = WatcherThread::watcher_thread(); |
|
13857 | 4759 |
if (wt != NULL) { |
4760 |
wt->print_on(st); |
|
4761 |
st->cr(); |
|
4762 |
} |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4763 |
|
1 | 4764 |
st->flush(); |
4765 |
} |
|
4766 |
||
37474 | 4767 |
void Threads::print_on_error(Thread* this_thread, outputStream* st, Thread* current, char* buf, |
4768 |
int buflen, bool* found_current) { |
|
4769 |
if (this_thread != NULL) { |
|
4770 |
bool is_current = (current == this_thread); |
|
4771 |
*found_current = *found_current || is_current; |
|
4772 |
st->print("%s", is_current ? "=>" : " "); |
|
4773 |
||
4774 |
st->print(PTR_FORMAT, p2i(this_thread)); |
|
4775 |
st->print(" "); |
|
4776 |
this_thread->print_on_error(st, buf, buflen); |
|
4777 |
st->cr(); |
|
4778 |
} |
|
4779 |
} |
|
4780 |
||
4781 |
class PrintOnErrorClosure : public ThreadClosure { |
|
4782 |
outputStream* _st; |
|
4783 |
Thread* _current; |
|
4784 |
char* _buf; |
|
4785 |
int _buflen; |
|
4786 |
bool* _found_current; |
|
4787 |
public: |
|
4788 |
PrintOnErrorClosure(outputStream* st, Thread* current, char* buf, |
|
4789 |
int buflen, bool* found_current) : |
|
4790 |
_st(st), _current(current), _buf(buf), _buflen(buflen), _found_current(found_current) {} |
|
4791 |
||
4792 |
virtual void do_thread(Thread* thread) { |
|
4793 |
Threads::print_on_error(thread, _st, _current, _buf, _buflen, _found_current); |
|
4794 |
} |
|
4795 |
}; |
|
4796 |
||
1 | 4797 |
// Threads::print_on_error() is called by fatal error handler. It's possible |
4798 |
// that VM is not at safepoint and/or current thread is inside signal handler. |
|
4799 |
// Don't print stack trace, as the stack may not be walkable. Don't allocate |
|
4800 |
// memory (even in resource area), it might deadlock the error handler. |
|
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
4801 |
void Threads::print_on_error(outputStream* st, Thread* current, char* buf, |
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
4802 |
int buflen) { |
48382
0997d6959851
8193135: get rid of redundant _smr_ prefix/infix in ThreadSMRSupport stuff
dcubed
parents:
48312
diff
changeset
|
4803 |
ThreadsSMRSupport::print_info_on(st); |
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4804 |
st->cr(); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4805 |
|
1 | 4806 |
bool found_current = false; |
4807 |
st->print_cr("Java Threads: ( => current thread )"); |
|
4808 |
ALL_JAVA_THREADS(thread) { |
|
37474 | 4809 |
print_on_error(thread, st, current, buf, buflen, &found_current); |
1 | 4810 |
} |
4811 |
st->cr(); |
|
4812 |
||
4813 |
st->print_cr("Other Threads:"); |
|
37474 | 4814 |
print_on_error(VMThread::vm_thread(), st, current, buf, buflen, &found_current); |
4815 |
print_on_error(WatcherThread::watcher_thread(), st, current, buf, buflen, &found_current); |
|
4816 |
||
4817 |
PrintOnErrorClosure print_closure(st, current, buf, buflen, &found_current); |
|
4818 |
Universe::heap()->gc_threads_do(&print_closure); |
|
4819 |
||
1 | 4820 |
if (!found_current) { |
4821 |
st->cr(); |
|
33148
68fa8b6c4340
8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents:
33107
diff
changeset
|
4822 |
st->print("=>" PTR_FORMAT " (exited) ", p2i(current)); |
1 | 4823 |
current->print_on_error(st, buf, buflen); |
4824 |
st->cr(); |
|
4825 |
} |
|
35825
7c7652ee137b
8063112: Compiler diagnostic commands should have locking instead of safepoint
neliasso
parents:
35495
diff
changeset
|
4826 |
st->cr(); |
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
48005
diff
changeset
|
4827 |
|
35825
7c7652ee137b
8063112: Compiler diagnostic commands should have locking instead of safepoint
neliasso
parents:
35495
diff
changeset
|
4828 |
st->print_cr("Threads with active compile tasks:"); |
7c7652ee137b
8063112: Compiler diagnostic commands should have locking instead of safepoint
neliasso
parents:
35495
diff
changeset
|
4829 |
print_threads_compiling(st, buf, buflen); |
1 | 4830 |
} |
4831 |
||
54015
cd701366fcf8
8163511: Allocation of compile task fails with assert: "Leaking compilation tasks?"
thartmann
parents:
54006
diff
changeset
|
4832 |
void Threads::print_threads_compiling(outputStream* st, char* buf, int buflen, bool short_form) { |
35825
7c7652ee137b
8063112: Compiler diagnostic commands should have locking instead of safepoint
neliasso
parents:
35495
diff
changeset
|
4833 |
ALL_JAVA_THREADS(thread) { |
7c7652ee137b
8063112: Compiler diagnostic commands should have locking instead of safepoint
neliasso
parents:
35495
diff
changeset
|
4834 |
if (thread->is_Compiler_thread()) { |
7c7652ee137b
8063112: Compiler diagnostic commands should have locking instead of safepoint
neliasso
parents:
35495
diff
changeset
|
4835 |
CompilerThread* ct = (CompilerThread*) thread; |
48428 | 4836 |
|
4837 |
// Keep task in local variable for NULL check. |
|
4838 |
// ct->_task might be set to NULL by concurring compiler thread |
|
4839 |
// because it completed the compilation. The task is never freed, |
|
4840 |
// though, just returned to a free list. |
|
4841 |
CompileTask* task = ct->task(); |
|
4842 |
if (task != NULL) { |
|
35825
7c7652ee137b
8063112: Compiler diagnostic commands should have locking instead of safepoint
neliasso
parents:
35495
diff
changeset
|
4843 |
thread->print_name_on_error(st, buf, buflen); |
52599
a2e22b1ee4a1
8214004: Missing space between compiler thread name and task info in hs_err
shade
parents:
52596
diff
changeset
|
4844 |
st->print(" "); |
54015
cd701366fcf8
8163511: Allocation of compile task fails with assert: "Leaking compilation tasks?"
thartmann
parents:
54006
diff
changeset
|
4845 |
task->print(st, NULL, short_form, true); |
35825
7c7652ee137b
8063112: Compiler diagnostic commands should have locking instead of safepoint
neliasso
parents:
35495
diff
changeset
|
4846 |
} |
7c7652ee137b
8063112: Compiler diagnostic commands should have locking instead of safepoint
neliasso
parents:
35495
diff
changeset
|
4847 |
} |
7c7652ee137b
8063112: Compiler diagnostic commands should have locking instead of safepoint
neliasso
parents:
35495
diff
changeset
|
4848 |
} |
7c7652ee137b
8063112: Compiler diagnostic commands should have locking instead of safepoint
neliasso
parents:
35495
diff
changeset
|
4849 |
} |
7c7652ee137b
8063112: Compiler diagnostic commands should have locking instead of safepoint
neliasso
parents:
35495
diff
changeset
|
4850 |
|
7c7652ee137b
8063112: Compiler diagnostic commands should have locking instead of safepoint
neliasso
parents:
35495
diff
changeset
|
4851 |
|
6975 | 4852 |
// Internal SpinLock and Mutex |
4853 |
// Based on ParkEvent |
|
4854 |
||
4855 |
// Ad-hoc mutual exclusion primitives: SpinLock and Mux |
|
1 | 4856 |
// |
6975 | 4857 |
// We employ SpinLocks _only for low-contention, fixed-length |
4858 |
// short-duration critical sections where we're concerned |
|
4859 |
// about native mutex_t or HotSpot Mutex:: latency. |
|
4860 |
// The mux construct provides a spin-then-block mutual exclusion |
|
4861 |
// mechanism. |
|
4862 |
// |
|
4863 |
// Testing has shown that contention on the ListLock guarding gFreeList |
|
4864 |
// is common. If we implement ListLock as a simple SpinLock it's common |
|
4865 |
// for the JVM to devolve to yielding with little progress. This is true |
|
4866 |
// despite the fact that the critical sections protected by ListLock are |
|
4867 |
// extremely short. |
|
1 | 4868 |
// |
6975 | 4869 |
// TODO-FIXME: ListLock should be of type SpinLock. |
4870 |
// We should make this a 1st-class type, integrated into the lock |
|
4871 |
// hierarchy as leaf-locks. Critically, the SpinLock structure |
|
4872 |
// should have sufficient padding to avoid false-sharing and excessive |
|
4873 |
// cache-coherency traffic. |
|
4874 |
||
4875 |
||
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
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25058
diff
changeset
|
4876 |
typedef volatile int SpinLockT; |
6975 | 4877 |
|
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
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26683
diff
changeset
|
4878 |
void Thread::SpinAcquire(volatile int * adr, const char * LockName) { |
59252
623722a6aeb9
8234740: Harmonize parameter order in Atomic - cmpxchg
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parents:
59247
diff
changeset
|
4879 |
if (Atomic::cmpxchg(adr, 0, 1) == 0) { |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4880 |
return; // normal fast-path return |
6975 | 4881 |
} |
4882 |
||
4883 |
// Slow-path : We've encountered contention -- Spin/Yield/Block strategy. |
|
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
4884 |
int ctr = 0; |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
4885 |
int Yields = 0; |
1 | 4886 |
for (;;) { |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4887 |
while (*adr != 0) { |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4888 |
++ctr; |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4889 |
if ((ctr & 0xFFF) == 0 || !os::is_MP()) { |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4890 |
if (Yields > 5) { |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4891 |
os::naked_short_sleep(1); |
6975 | 4892 |
} else { |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4893 |
os::naked_yield(); |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4894 |
++Yields; |
1 | 4895 |
} |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4896 |
} else { |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4897 |
SpinPause(); |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4898 |
} |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4899 |
} |
59252
623722a6aeb9
8234740: Harmonize parameter order in Atomic - cmpxchg
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parents:
59247
diff
changeset
|
4900 |
if (Atomic::cmpxchg(adr, 0, 1) == 0) return; |
1 | 4901 |
} |
4902 |
} |
|
4903 |
||
26684
d1221849ea3d
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26683
diff
changeset
|
4904 |
void Thread::SpinRelease(volatile int * adr) { |
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
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parents:
25058
diff
changeset
|
4905 |
assert(*adr != 0, "invariant"); |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
4906 |
OrderAccess::fence(); // guarantee at least release consistency. |
6975 | 4907 |
// Roach-motel semantics. |
4908 |
// It's safe if subsequent LDs and STs float "up" into the critical section, |
|
4909 |
// but prior LDs and STs within the critical section can't be allowed |
|
4910 |
// to reorder or float past the ST that releases the lock. |
|
25472
381638db28e6
8047104: cleanup misc issues prior to Contended Locking reorder and cache
dcubed
parents:
25468
diff
changeset
|
4911 |
// Loads and stores in the critical section - which appear in program |
381638db28e6
8047104: cleanup misc issues prior to Contended Locking reorder and cache
dcubed
parents:
25468
diff
changeset
|
4912 |
// order before the store that releases the lock - must also appear |
381638db28e6
8047104: cleanup misc issues prior to Contended Locking reorder and cache
dcubed
parents:
25468
diff
changeset
|
4913 |
// before the store that releases the lock in memory visibility order. |
381638db28e6
8047104: cleanup misc issues prior to Contended Locking reorder and cache
dcubed
parents:
25468
diff
changeset
|
4914 |
// Conceptually we need a #loadstore|#storestore "release" MEMBAR before |
381638db28e6
8047104: cleanup misc issues prior to Contended Locking reorder and cache
dcubed
parents:
25468
diff
changeset
|
4915 |
// the ST of 0 into the lock-word which releases the lock, so fence |
381638db28e6
8047104: cleanup misc issues prior to Contended Locking reorder and cache
dcubed
parents:
25468
diff
changeset
|
4916 |
// more than covers this on all platforms. |
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
4917 |
*adr = 0; |
1 | 4918 |
} |
4919 |
||
6975 | 4920 |
// muxAcquire and muxRelease: |
4921 |
// |
|
4922 |
// * muxAcquire and muxRelease support a single-word lock-word construct. |
|
4923 |
// The LSB of the word is set IFF the lock is held. |
|
4924 |
// The remainder of the word points to the head of a singly-linked list |
|
4925 |
// of threads blocked on the lock. |
|
4926 |
// |
|
4927 |
// * The current implementation of muxAcquire-muxRelease uses its own |
|
4928 |
// dedicated Thread._MuxEvent instance. If we're interested in |
|
4929 |
// minimizing the peak number of extant ParkEvent instances then |
|
4930 |
// we could eliminate _MuxEvent and "borrow" _ParkEvent as long |
|
4931 |
// as certain invariants were satisfied. Specifically, care would need |
|
4932 |
// to be taken with regards to consuming unpark() "permits". |
|
4933 |
// A safe rule of thumb is that a thread would never call muxAcquire() |
|
4934 |
// if it's enqueued (cxq, EntryList, WaitList, etc) and will subsequently |
|
4935 |
// park(). Otherwise the _ParkEvent park() operation in muxAcquire() could |
|
4936 |
// consume an unpark() permit intended for monitorenter, for instance. |
|
4937 |
// One way around this would be to widen the restricted-range semaphore |
|
4938 |
// implemented in park(). Another alternative would be to provide |
|
4939 |
// multiple instances of the PlatformEvent() for each thread. One |
|
4940 |
// instance would be dedicated to muxAcquire-muxRelease, for instance. |
|
4941 |
// |
|
4942 |
// * Usage: |
|
4943 |
// -- Only as leaf locks |
|
4944 |
// -- for short-term locking only as muxAcquire does not perform |
|
4945 |
// thread state transitions. |
|
4946 |
// |
|
4947 |
// Alternatives: |
|
4948 |
// * We could implement muxAcquire and muxRelease with MCS or CLH locks |
|
4949 |
// but with parking or spin-then-park instead of pure spinning. |
|
4950 |
// * Use Taura-Oyama-Yonenzawa locks. |
|
4951 |
// * It's possible to construct a 1-0 lock if we encode the lockword as |
|
4952 |
// (List,LockByte). Acquire will CAS the full lockword while Release |
|
4953 |
// will STB 0 into the LockByte. The 1-0 scheme admits stranding, so |
|
4954 |
// acquiring threads use timers (ParkTimed) to detect and recover from |
|
4955 |
// the stranding window. Thread/Node structures must be aligned on 256-byte |
|
4956 |
// boundaries by using placement-new. |
|
4957 |
// * Augment MCS with advisory back-link fields maintained with CAS(). |
|
4958 |
// Pictorially: LockWord -> T1 <-> T2 <-> T3 <-> ... <-> Tn <-> Owner. |
|
4959 |
// The validity of the backlinks must be ratified before we trust the value. |
|
4960 |
// If the backlinks are invalid the exiting thread must back-track through the |
|
4961 |
// the forward links, which are always trustworthy. |
|
4962 |
// * Add a successor indication. The LockWord is currently encoded as |
|
4963 |
// (List, LOCKBIT:1). We could also add a SUCCBIT or an explicit _succ variable |
|
4964 |
// to provide the usual futile-wakeup optimization. |
|
4965 |
// See RTStt for details. |
|
4966 |
// |
|
4967 |
||
4968 |
||
47634
6a0c42c40cd1
8188220: Remove Atomic::*_ptr() uses and overloads from hotspot
coleenp
parents:
47614
diff
changeset
|
4969 |
const intptr_t LOCKBIT = 1; |
6975 | 4970 |
|
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
4971 |
void Thread::muxAcquire(volatile intptr_t * Lock, const char * LockName) { |
59252
623722a6aeb9
8234740: Harmonize parameter order in Atomic - cmpxchg
stefank
parents:
59247
diff
changeset
|
4972 |
intptr_t w = Atomic::cmpxchg(Lock, (intptr_t)0, LOCKBIT); |
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
4973 |
if (w == 0) return; |
59252
623722a6aeb9
8234740: Harmonize parameter order in Atomic - cmpxchg
stefank
parents:
59247
diff
changeset
|
4974 |
if ((w & LOCKBIT) == 0 && Atomic::cmpxchg(Lock, w, w|LOCKBIT) == w) { |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4975 |
return; |
6975 | 4976 |
} |
4977 |
||
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
4978 |
ParkEvent * const Self = Thread::current()->_MuxEvent; |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
4979 |
assert((intptr_t(Self) & LOCKBIT) == 0, "invariant"); |
1 | 4980 |
for (;;) { |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4981 |
int its = (os::is_MP() ? 100 : 0) + 1; |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4982 |
|
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4983 |
// Optional spin phase: spin-then-park strategy |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4984 |
while (--its >= 0) { |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4985 |
w = *Lock; |
59252
623722a6aeb9
8234740: Harmonize parameter order in Atomic - cmpxchg
stefank
parents:
59247
diff
changeset
|
4986 |
if ((w & LOCKBIT) == 0 && Atomic::cmpxchg(Lock, w, w|LOCKBIT) == w) { |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4987 |
return; |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4988 |
} |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4989 |
} |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4990 |
|
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4991 |
Self->reset(); |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4992 |
Self->OnList = intptr_t(Lock); |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4993 |
// The following fence() isn't _strictly necessary as the subsequent |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4994 |
// CAS() both serializes execution and ratifies the fetched *Lock value. |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4995 |
OrderAccess::fence(); |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4996 |
for (;;) { |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4997 |
w = *Lock; |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
4998 |
if ((w & LOCKBIT) == 0) { |
59252
623722a6aeb9
8234740: Harmonize parameter order in Atomic - cmpxchg
stefank
parents:
59247
diff
changeset
|
4999 |
if (Atomic::cmpxchg(Lock, w, w|LOCKBIT) == w) { |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
5000 |
Self->OnList = 0; // hygiene - allows stronger asserts |
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
5001 |
return; |
1 | 5002 |
} |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
5003 |
continue; // Interference -- *Lock changed -- Just retry |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
5004 |
} |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
5005 |
assert(w & LOCKBIT, "invariant"); |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
5006 |
Self->ListNext = (ParkEvent *) (w & ~LOCKBIT); |
59252
623722a6aeb9
8234740: Harmonize parameter order in Atomic - cmpxchg
stefank
parents:
59247
diff
changeset
|
5007 |
if (Atomic::cmpxchg(Lock, w, intptr_t(Self)|LOCKBIT) == w) break; |
26683
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
5008 |
} |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
5009 |
|
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
5010 |
while (Self->OnList != 0) { |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
5011 |
Self->park(); |
a02753d5a0b2
8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
25946
diff
changeset
|
5012 |
} |
1 | 5013 |
} |
5014 |
} |
|
5015 |
||
6975 | 5016 |
// Release() must extract a successor from the list and then wake that thread. |
5017 |
// It can "pop" the front of the list or use a detach-modify-reattach (DMR) scheme |
|
5018 |
// similar to that used by ParkEvent::Allocate() and ::Release(). DMR-based |
|
5019 |
// Release() would : |
|
5020 |
// (A) CAS() or swap() null to *Lock, releasing the lock and detaching the list. |
|
5021 |
// (B) Extract a successor from the private list "in-hand" |
|
5022 |
// (C) attempt to CAS() the residual back into *Lock over null. |
|
5023 |
// If there were any newly arrived threads and the CAS() would fail. |
|
5024 |
// In that case Release() would detach the RATs, re-merge the list in-hand |
|
5025 |
// with the RATs and repeat as needed. Alternately, Release() might |
|
5026 |
// detach and extract a successor, but then pass the residual list to the wakee. |
|
5027 |
// The wakee would be responsible for reattaching and remerging before it |
|
5028 |
// competed for the lock. |
|
5029 |
// |
|
5030 |
// Both "pop" and DMR are immune from ABA corruption -- there can be |
|
5031 |
// multiple concurrent pushers, but only one popper or detacher. |
|
5032 |
// This implementation pops from the head of the list. This is unfair, |
|
5033 |
// but tends to provide excellent throughput as hot threads remain hot. |
|
5034 |
// (We wake recently run threads first). |
|
25472
381638db28e6
8047104: cleanup misc issues prior to Contended Locking reorder and cache
dcubed
parents:
25468
diff
changeset
|
5035 |
// |
381638db28e6
8047104: cleanup misc issues prior to Contended Locking reorder and cache
dcubed
parents:
25468
diff
changeset
|
5036 |
// All paths through muxRelease() will execute a CAS. |
381638db28e6
8047104: cleanup misc issues prior to Contended Locking reorder and cache
dcubed
parents:
25468
diff
changeset
|
5037 |
// Release consistency -- We depend on the CAS in muxRelease() to provide full |
381638db28e6
8047104: cleanup misc issues prior to Contended Locking reorder and cache
dcubed
parents:
25468
diff
changeset
|
5038 |
// bidirectional fence/MEMBAR semantics, ensuring that all prior memory operations |
381638db28e6
8047104: cleanup misc issues prior to Contended Locking reorder and cache
dcubed
parents:
25468
diff
changeset
|
5039 |
// executed within the critical section are complete and globally visible before the |
381638db28e6
8047104: cleanup misc issues prior to Contended Locking reorder and cache
dcubed
parents:
25468
diff
changeset
|
5040 |
// store (CAS) to the lock-word that releases the lock becomes globally visible. |
26684
d1221849ea3d
8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents:
26683
diff
changeset
|
5041 |
void Thread::muxRelease(volatile intptr_t * Lock) { |
6975 | 5042 |
for (;;) { |
59252
623722a6aeb9
8234740: Harmonize parameter order in Atomic - cmpxchg
stefank
parents:
59247
diff
changeset
|
5043 |
const intptr_t w = Atomic::cmpxchg(Lock, LOCKBIT, (intptr_t)0); |
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
5044 |
assert(w & LOCKBIT, "invariant"); |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
5045 |
if (w == LOCKBIT) return; |
25472
381638db28e6
8047104: cleanup misc issues prior to Contended Locking reorder and cache
dcubed
parents:
25468
diff
changeset
|
5046 |
ParkEvent * const List = (ParkEvent *) (w & ~LOCKBIT); |
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
5047 |
assert(List != NULL, "invariant"); |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
5048 |
assert(List->OnList == intptr_t(Lock), "invariant"); |
25472
381638db28e6
8047104: cleanup misc issues prior to Contended Locking reorder and cache
dcubed
parents:
25468
diff
changeset
|
5049 |
ParkEvent * const nxt = List->ListNext; |
381638db28e6
8047104: cleanup misc issues prior to Contended Locking reorder and cache
dcubed
parents:
25468
diff
changeset
|
5050 |
guarantee((intptr_t(nxt) & LOCKBIT) == 0, "invariant"); |
6975 | 5051 |
|
5052 |
// The following CAS() releases the lock and pops the head element. |
|
25472
381638db28e6
8047104: cleanup misc issues prior to Contended Locking reorder and cache
dcubed
parents:
25468
diff
changeset
|
5053 |
// The CAS() also ratifies the previously fetched lock-word value. |
59252
623722a6aeb9
8234740: Harmonize parameter order in Atomic - cmpxchg
stefank
parents:
59247
diff
changeset
|
5054 |
if (Atomic::cmpxchg(Lock, w, intptr_t(nxt)) != w) { |
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
5055 |
continue; |
6975 | 5056 |
} |
25064
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
5057 |
List->OnList = 0; |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
5058 |
OrderAccess::fence(); |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
5059 |
List->unpark(); |
244218e6ec0a
8046758: cleanup non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents:
25058
diff
changeset
|
5060 |
return; |
6975 | 5061 |
} |
5062 |
} |
|
5063 |
||
5064 |
||
1 | 5065 |
void Threads::verify() { |
5066 |
ALL_JAVA_THREADS(p) { |
|
5067 |
p->verify(); |
|
5068 |
} |
|
5069 |
VMThread* thread = VMThread::vm_thread(); |
|
5070 |
if (thread != NULL) thread->verify(); |
|
5071 |
} |