src/hotspot/share/memory/universe.cpp
author eosterlund
Thu, 01 Nov 2018 14:57:26 +0100
changeset 52384 d6dc479bcdd3
parent 52356 19c4a3eec4d7
child 52431 b0af758a092c
permissions -rw-r--r--
8212681: Refactor IC locking to use a fine grained CompiledICLocker Reviewed-by: coleenp, rehn, kvn
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/*
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 * Copyright (c) 1997, 2018, 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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#include "precompiled.hpp"
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#include "aot/aotLoader.hpp"
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#include "classfile/classLoader.hpp"
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#include "classfile/classLoaderDataGraph.hpp"
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#include "classfile/javaClasses.hpp"
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#include "classfile/stringTable.hpp"
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#include "classfile/systemDictionary.hpp"
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#include "classfile/vmSymbols.hpp"
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#include "code/codeBehaviours.hpp"
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#include "code/codeCache.hpp"
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#include "code/dependencies.hpp"
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#include "gc/shared/collectedHeap.inline.hpp"
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#include "gc/shared/gcArguments.hpp"
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#include "gc/shared/gcConfig.hpp"
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#include "gc/shared/gcTraceTime.inline.hpp"
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#include "interpreter/interpreter.hpp"
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#include "logging/log.hpp"
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#include "logging/logStream.hpp"
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#include "memory/heapShared.hpp"
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#include "memory/filemap.hpp"
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#include "memory/metadataFactory.hpp"
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#include "memory/metaspaceClosure.hpp"
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#include "memory/metaspaceCounters.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 "memory/universe.hpp"
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#include "oops/constantPool.hpp"
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#include "oops/instanceClassLoaderKlass.hpp"
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#include "oops/instanceKlass.hpp"
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#include "oops/instanceMirrorKlass.hpp"
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#include "oops/instanceRefKlass.hpp"
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#include "oops/objArrayOop.inline.hpp"
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#include "oops/oop.inline.hpp"
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#include "oops/typeArrayKlass.hpp"
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#include "prims/resolvedMethodTable.hpp"
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#include "runtime/arguments.hpp"
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#include "runtime/atomic.hpp"
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#include "runtime/deoptimization.hpp"
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#include "runtime/flags/flagSetting.hpp"
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#include "runtime/flags/jvmFlagConstraintList.hpp"
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#include "runtime/handles.inline.hpp"
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#include "runtime/init.hpp"
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#include "runtime/java.hpp"
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#include "runtime/javaCalls.hpp"
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#include "runtime/sharedRuntime.hpp"
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#include "runtime/synchronizer.hpp"
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#include "runtime/thread.inline.hpp"
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#include "runtime/timerTrace.hpp"
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#include "runtime/vm_operations.hpp"
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#include "services/memoryService.hpp"
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#include "utilities/align.hpp"
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#include "utilities/copy.hpp"
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#include "utilities/debug.hpp"
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#include "utilities/events.hpp"
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#include "utilities/formatBuffer.hpp"
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#include "utilities/hashtable.inline.hpp"
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#include "utilities/macros.hpp"
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#include "utilities/ostream.hpp"
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#include "utilities/preserveException.hpp"
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// Known objects
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Klass* Universe::_typeArrayKlassObjs[T_LONG+1]        = { NULL /*, NULL...*/ };
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Klass* Universe::_objectArrayKlassObj                 = NULL;
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oop Universe::_int_mirror                             = NULL;
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oop Universe::_float_mirror                           = NULL;
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oop Universe::_double_mirror                          = NULL;
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oop Universe::_byte_mirror                            = NULL;
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oop Universe::_bool_mirror                            = NULL;
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oop Universe::_char_mirror                            = NULL;
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oop Universe::_long_mirror                            = NULL;
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oop Universe::_short_mirror                           = NULL;
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oop Universe::_void_mirror                            = NULL;
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oop Universe::_mirrors[T_VOID+1]                      = { NULL /*, NULL...*/ };
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oop Universe::_main_thread_group                      = NULL;
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oop Universe::_system_thread_group                    = NULL;
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objArrayOop Universe::_the_empty_class_klass_array    = NULL;
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Array<Klass*>* Universe::_the_array_interfaces_array = NULL;
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oop Universe::_the_null_sentinel                      = NULL;
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oop Universe::_the_null_string                        = NULL;
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oop Universe::_the_min_jint_string                   = NULL;
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LatestMethodCache* Universe::_finalizer_register_cache = NULL;
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LatestMethodCache* Universe::_loader_addClass_cache    = NULL;
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LatestMethodCache* Universe::_pd_implies_cache         = NULL;
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LatestMethodCache* Universe::_throw_illegal_access_error_cache = NULL;
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LatestMethodCache* Universe::_do_stack_walk_cache     = NULL;
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oop Universe::_out_of_memory_error_java_heap          = NULL;
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oop Universe::_out_of_memory_error_metaspace          = NULL;
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oop Universe::_out_of_memory_error_class_metaspace    = NULL;
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oop Universe::_out_of_memory_error_array_size         = NULL;
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oop Universe::_out_of_memory_error_gc_overhead_limit  = NULL;
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oop Universe::_out_of_memory_error_realloc_objects    = NULL;
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oop Universe::_out_of_memory_error_retry              = NULL;
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oop Universe::_delayed_stack_overflow_error_message   = NULL;
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objArrayOop Universe::_preallocated_out_of_memory_error_array = NULL;
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volatile jint Universe::_preallocated_out_of_memory_error_avail_count = 0;
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bool Universe::_verify_in_progress                    = false;
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long Universe::verify_flags                           = Universe::Verify_All;
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oop Universe::_null_ptr_exception_instance            = NULL;
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oop Universe::_arithmetic_exception_instance          = NULL;
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oop Universe::_virtual_machine_error_instance         = NULL;
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oop Universe::_vm_exception                           = NULL;
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oop Universe::_reference_pending_list                 = NULL;
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Array<int>* Universe::_the_empty_int_array            = NULL;
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Array<u2>* Universe::_the_empty_short_array           = NULL;
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Array<Klass*>* Universe::_the_empty_klass_array     = NULL;
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Array<InstanceKlass*>* Universe::_the_empty_instance_klass_array  = NULL;
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Array<Method*>* Universe::_the_empty_method_array   = NULL;
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// These variables are guarded by FullGCALot_lock.
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debug_only(objArrayOop Universe::_fullgc_alot_dummy_array = NULL;)
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debug_only(int Universe::_fullgc_alot_dummy_next      = 0;)
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// Heap
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int             Universe::_verify_count = 0;
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// Oop verification (see MacroAssembler::verify_oop)
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uintptr_t       Universe::_verify_oop_mask = 0;
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uintptr_t       Universe::_verify_oop_bits = (uintptr_t) -1;
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int             Universe::_base_vtable_size = 0;
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bool            Universe::_bootstrapping = false;
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bool            Universe::_module_initialized = false;
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bool            Universe::_fully_initialized = false;
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size_t          Universe::_heap_capacity_at_last_gc;
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size_t          Universe::_heap_used_at_last_gc = 0;
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CollectedHeap*  Universe::_collectedHeap = NULL;
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NarrowPtrStruct Universe::_narrow_oop = { NULL, 0, true };
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NarrowPtrStruct Universe::_narrow_klass = { NULL, 0, true };
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address Universe::_narrow_ptrs_base;
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uint64_t Universe::_narrow_klass_range = (uint64_t(max_juint)+1);
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void Universe::basic_type_classes_do(void f(Klass*)) {
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  for (int i = T_BOOLEAN; i < T_LONG+1; i++) {
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    f(_typeArrayKlassObjs[i]);
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  }
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}
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void Universe::basic_type_classes_do(KlassClosure *closure) {
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  for (int i = T_BOOLEAN; i < T_LONG+1; i++) {
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    closure->do_klass(_typeArrayKlassObjs[i]);
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  }
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}
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void Universe::oops_do(OopClosure* f) {
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  f->do_oop((oop*) &_int_mirror);
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  f->do_oop((oop*) &_float_mirror);
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  f->do_oop((oop*) &_double_mirror);
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  f->do_oop((oop*) &_byte_mirror);
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  f->do_oop((oop*) &_bool_mirror);
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  f->do_oop((oop*) &_char_mirror);
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  f->do_oop((oop*) &_long_mirror);
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  f->do_oop((oop*) &_short_mirror);
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  f->do_oop((oop*) &_void_mirror);
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  for (int i = T_BOOLEAN; i < T_VOID+1; i++) {
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    f->do_oop((oop*) &_mirrors[i]);
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  }
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  assert(_mirrors[0] == NULL && _mirrors[T_BOOLEAN - 1] == NULL, "checking");
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  f->do_oop((oop*)&_the_empty_class_klass_array);
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  f->do_oop((oop*)&_the_null_sentinel);
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  f->do_oop((oop*)&_the_null_string);
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  f->do_oop((oop*)&_the_min_jint_string);
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  f->do_oop((oop*)&_out_of_memory_error_java_heap);
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  f->do_oop((oop*)&_out_of_memory_error_metaspace);
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  f->do_oop((oop*)&_out_of_memory_error_class_metaspace);
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  f->do_oop((oop*)&_out_of_memory_error_array_size);
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  f->do_oop((oop*)&_out_of_memory_error_gc_overhead_limit);
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  f->do_oop((oop*)&_out_of_memory_error_realloc_objects);
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  f->do_oop((oop*)&_out_of_memory_error_retry);
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  f->do_oop((oop*)&_delayed_stack_overflow_error_message);
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  f->do_oop((oop*)&_preallocated_out_of_memory_error_array);
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  f->do_oop((oop*)&_null_ptr_exception_instance);
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  f->do_oop((oop*)&_arithmetic_exception_instance);
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  f->do_oop((oop*)&_virtual_machine_error_instance);
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  f->do_oop((oop*)&_main_thread_group);
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  f->do_oop((oop*)&_system_thread_group);
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  f->do_oop((oop*)&_vm_exception);
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  f->do_oop((oop*)&_reference_pending_list);
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  debug_only(f->do_oop((oop*)&_fullgc_alot_dummy_array);)
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}
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void LatestMethodCache::metaspace_pointers_do(MetaspaceClosure* it) {
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  it->push(&_klass);
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}
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void Universe::metaspace_pointers_do(MetaspaceClosure* it) {
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  for (int i = 0; i < T_LONG+1; i++) {
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    it->push(&_typeArrayKlassObjs[i]);
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  }
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  it->push(&_objectArrayKlassObj);
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  it->push(&_the_empty_int_array);
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  it->push(&_the_empty_short_array);
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  it->push(&_the_empty_klass_array);
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  it->push(&_the_empty_instance_klass_array);
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  it->push(&_the_empty_method_array);
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  it->push(&_the_array_interfaces_array);
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  _finalizer_register_cache->metaspace_pointers_do(it);
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  _loader_addClass_cache->metaspace_pointers_do(it);
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  _pd_implies_cache->metaspace_pointers_do(it);
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  _throw_illegal_access_error_cache->metaspace_pointers_do(it);
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  _do_stack_walk_cache->metaspace_pointers_do(it);
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}
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// Serialize metadata and pointers to primitive type mirrors in and out of CDS archive
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void Universe::serialize(SerializeClosure* f) {
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  for (int i = 0; i < T_LONG+1; i++) {
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    f->do_ptr((void**)&_typeArrayKlassObjs[i]);
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  }
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  f->do_ptr((void**)&_objectArrayKlassObj);
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#if INCLUDE_CDS_JAVA_HEAP
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#ifdef ASSERT
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  if (DumpSharedSpaces && !HeapShared::is_heap_object_archiving_allowed()) {
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    assert(_int_mirror == NULL    && _float_mirror == NULL &&
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           _double_mirror == NULL && _byte_mirror == NULL  &&
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           _bool_mirror == NULL   && _char_mirror == NULL  &&
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           _long_mirror == NULL   && _short_mirror == NULL &&
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           _void_mirror == NULL, "mirrors should be NULL");
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  }
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#endif
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  f->do_oop(&_int_mirror);
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  f->do_oop(&_float_mirror);
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  f->do_oop(&_double_mirror);
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  f->do_oop(&_byte_mirror);
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  f->do_oop(&_bool_mirror);
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  f->do_oop(&_char_mirror);
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  f->do_oop(&_long_mirror);
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  f->do_oop(&_short_mirror);
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  f->do_oop(&_void_mirror);
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#endif
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  f->do_ptr((void**)&_the_array_interfaces_array);
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  f->do_ptr((void**)&_the_empty_int_array);
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  f->do_ptr((void**)&_the_empty_short_array);
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  f->do_ptr((void**)&_the_empty_method_array);
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  f->do_ptr((void**)&_the_empty_klass_array);
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  f->do_ptr((void**)&_the_empty_instance_klass_array);
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  _finalizer_register_cache->serialize(f);
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  _loader_addClass_cache->serialize(f);
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  _pd_implies_cache->serialize(f);
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  _throw_illegal_access_error_cache->serialize(f);
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  _do_stack_walk_cache->serialize(f);
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}
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void Universe::check_alignment(uintx size, uintx alignment, const char* name) {
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  if (size < alignment || size % alignment != 0) {
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    vm_exit_during_initialization(
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      err_msg("Size of %s (" UINTX_FORMAT " bytes) must be aligned to " UINTX_FORMAT " bytes", name, size, alignment));
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  }
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}
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void initialize_basic_type_klass(Klass* k, TRAPS) {
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  Klass* ok = SystemDictionary::Object_klass();
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#if INCLUDE_CDS
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  if (UseSharedSpaces) {
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    ClassLoaderData* loader_data = ClassLoaderData::the_null_class_loader_data();
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    assert(k->super() == ok, "u3");
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    k->restore_unshareable_info(loader_data, Handle(), CHECK);
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  } else
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#endif
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  {
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    k->initialize_supers(ok, NULL, CHECK);
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  }
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  k->append_to_sibling_list();
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}
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void Universe::genesis(TRAPS) {
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  ResourceMark rm;
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  { FlagSetting fs(_bootstrapping, true);
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    { MutexLocker mc(Compile_lock);
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      java_lang_Class::allocate_fixup_lists();
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      // determine base vtable size; without that we cannot create the array klasses
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      compute_base_vtable_size();
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      if (!UseSharedSpaces) {
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        for (int i = T_BOOLEAN; i < T_LONG+1; i++) {
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          _typeArrayKlassObjs[i] = TypeArrayKlass::create_klass((BasicType)i, CHECK);
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        }
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        ClassLoaderData* null_cld = ClassLoaderData::the_null_class_loader_data();
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        _the_array_interfaces_array     = MetadataFactory::new_array<Klass*>(null_cld, 2, NULL, CHECK);
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        _the_empty_int_array            = MetadataFactory::new_array<int>(null_cld, 0, CHECK);
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        _the_empty_short_array          = MetadataFactory::new_array<u2>(null_cld, 0, CHECK);
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        _the_empty_method_array         = MetadataFactory::new_array<Method*>(null_cld, 0, CHECK);
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        _the_empty_klass_array          = MetadataFactory::new_array<Klass*>(null_cld, 0, CHECK);
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        _the_empty_instance_klass_array = MetadataFactory::new_array<InstanceKlass*>(null_cld, 0, CHECK);
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      }
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    }
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    vmSymbols::initialize(CHECK);
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    SystemDictionary::initialize(CHECK);
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    Klass* ok = SystemDictionary::Object_klass();
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    _the_null_string            = StringTable::intern("null", CHECK);
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    _the_min_jint_string       = StringTable::intern("-2147483648", CHECK);
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#if INCLUDE_CDS
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    if (UseSharedSpaces) {
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      // Verify shared interfaces array.
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      assert(_the_array_interfaces_array->at(0) ==
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             SystemDictionary::Cloneable_klass(), "u3");
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      assert(_the_array_interfaces_array->at(1) ==
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             SystemDictionary::Serializable_klass(), "u3");
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    } else
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#endif
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    {
1
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      // Set up shared interfaces array.  (Do this before supers are set up.)
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      _the_array_interfaces_array->at_put(0, SystemDictionary::Cloneable_klass());
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      _the_array_interfaces_array->at_put(1, SystemDictionary::Serializable_klass());
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    }
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    initialize_basic_type_klass(boolArrayKlassObj(), CHECK);
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    initialize_basic_type_klass(charArrayKlassObj(), CHECK);
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    initialize_basic_type_klass(floatArrayKlassObj(), CHECK);
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    initialize_basic_type_klass(doubleArrayKlassObj(), CHECK);
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    initialize_basic_type_klass(byteArrayKlassObj(), CHECK);
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    initialize_basic_type_klass(shortArrayKlassObj(), CHECK);
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    initialize_basic_type_klass(intArrayKlassObj(), CHECK);
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   361
    initialize_basic_type_klass(longArrayKlassObj(), CHECK);
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   362
  } // end of core bootstrapping
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   363
48826
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   364
  {
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   365
    Handle tns = java_lang_String::create_from_str("<null_sentinel>", CHECK);
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   366
    _the_null_sentinel = tns();
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   367
  }
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   368
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  // Maybe this could be lifted up now that object array can be initialized
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   370
  // during the bootstrapping.
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   371
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   372
  // OLD
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  // Initialize _objectArrayKlass after core bootstraping to make
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   374
  // sure the super class is set up properly for _objectArrayKlass.
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   375
  // ---
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   376
  // NEW
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   377
  // Since some of the old system object arrays have been converted to
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   378
  // ordinary object arrays, _objectArrayKlass will be loaded when
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   379
  // SystemDictionary::initialize(CHECK); is run. See the extra check
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   380
  // for Object_klass_loaded in objArrayKlassKlass::allocate_objArray_klass_impl.
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   381
  _objectArrayKlassObj = InstanceKlass::
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   382
    cast(SystemDictionary::Object_klass())->array_klass(1, CHECK);
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   383
  // OLD
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   384
  // Add the class to the class hierarchy manually to make sure that
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   385
  // its vtable is initialized after core bootstrapping is completed.
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diff changeset
   386
  // ---
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   387
  // New
882756847a04 6964458: Reimplement class meta-data storage to use native memory
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   388
  // Have already been initialized.
14488
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
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   389
  _objectArrayKlassObj->append_to_sibling_list();
1
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   390
489c9b5090e2 Initial load
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   391
  #ifdef ASSERT
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   392
  if (FullGCALot) {
489c9b5090e2 Initial load
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   393
    // Allocate an array of dummy objects.
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parents:
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   394
    // We'd like these to be at the bottom of the old generation,
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   395
    // so that when we free one and then collect,
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   396
    // (almost) the whole heap moves
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   397
    // and we find out if we actually update all the oops correctly.
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diff changeset
   398
    // But we can't allocate directly in the old generation,
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diff changeset
   399
    // so we allocate wherever, and hope that the first collection
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   400
    // moves these objects to the bottom of the old generation.
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parents:
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   401
    // We can allocate directly in the permanent generation, so we do.
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   402
    int size;
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diff changeset
   403
    if (UseConcMarkSweepGC) {
37073
c39d0903390b 8151605: Change warning() to log_warning(gc) in the GC code
brutisso
parents: 36178
diff changeset
   404
      log_warning(gc)("Using +FullGCALot with concurrent mark sweep gc will not force all objects to relocate");
1
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parents:
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   405
      size = FullGCALotDummies;
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   406
    } else {
489c9b5090e2 Initial load
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diff changeset
   407
      size = FullGCALotDummies * 2;
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diff changeset
   408
    }
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   409
    objArrayOop    naked_array = oopFactory::new_objArray(SystemDictionary::Object_klass(), size, CHECK);
1
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diff changeset
   410
    objArrayHandle dummy_array(THREAD, naked_array);
489c9b5090e2 Initial load
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   411
    int i = 0;
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parents:
diff changeset
   412
    while (i < size) {
489c9b5090e2 Initial load
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parents:
diff changeset
   413
        // Allocate dummy in old generation
33602
16053580a684 8139163: InstanceKlass::cast passes through NULL
coleenp
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diff changeset
   414
      oop dummy = SystemDictionary::Object_klass()->allocate_instance(CHECK);
1
489c9b5090e2 Initial load
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   415
      dummy_array->obj_at_put(i++, dummy);
489c9b5090e2 Initial load
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diff changeset
   416
    }
489c9b5090e2 Initial load
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diff changeset
   417
    {
489c9b5090e2 Initial load
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diff changeset
   418
      // Only modify the global variable inside the mutex.
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parents:
diff changeset
   419
      // If we had a race to here, the other dummy_array instances
489c9b5090e2 Initial load
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parents:
diff changeset
   420
      // and their elements just get dropped on the floor, which is fine.
489c9b5090e2 Initial load
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parents:
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   421
      MutexLocker ml(FullGCALot_lock);
489c9b5090e2 Initial load
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parents:
diff changeset
   422
      if (_fullgc_alot_dummy_array == NULL) {
489c9b5090e2 Initial load
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parents:
diff changeset
   423
        _fullgc_alot_dummy_array = dummy_array();
489c9b5090e2 Initial load
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diff changeset
   424
      }
489c9b5090e2 Initial load
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diff changeset
   425
    }
489c9b5090e2 Initial load
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parents:
diff changeset
   426
    assert(i == _fullgc_alot_dummy_array->length(), "just checking");
489c9b5090e2 Initial load
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parents:
diff changeset
   427
  }
489c9b5090e2 Initial load
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parents:
diff changeset
   428
  #endif
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parents:
diff changeset
   429
}
489c9b5090e2 Initial load
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parents:
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   430
489c9b5090e2 Initial load
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   431
void Universe::initialize_basic_type_mirrors(TRAPS) {
49329
04ed29f9ef33 8194759: Support caching class mirror objects.
jiangli
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diff changeset
   432
#if INCLUDE_CDS_JAVA_HEAP
04ed29f9ef33 8194759: Support caching class mirror objects.
jiangli
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diff changeset
   433
    if (UseSharedSpaces &&
52062
8dbf1a13af49 8206009: Move CDS java heap object archiving code to heapShared.hpp and heapShared.cpp
jiangli
parents: 52033
diff changeset
   434
        HeapShared::open_archive_heap_region_mapped() &&
49329
04ed29f9ef33 8194759: Support caching class mirror objects.
jiangli
parents: 49186
diff changeset
   435
        _int_mirror != NULL) {
52062
8dbf1a13af49 8206009: Move CDS java heap object archiving code to heapShared.hpp and heapShared.cpp
jiangli
parents: 52033
diff changeset
   436
      assert(HeapShared::is_heap_object_archiving_allowed(), "Sanity");
49329
04ed29f9ef33 8194759: Support caching class mirror objects.
jiangli
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diff changeset
   437
      assert(_float_mirror != NULL && _double_mirror != NULL &&
04ed29f9ef33 8194759: Support caching class mirror objects.
jiangli
parents: 49186
diff changeset
   438
             _byte_mirror  != NULL && _byte_mirror   != NULL &&
04ed29f9ef33 8194759: Support caching class mirror objects.
jiangli
parents: 49186
diff changeset
   439
             _bool_mirror  != NULL && _char_mirror   != NULL &&
04ed29f9ef33 8194759: Support caching class mirror objects.
jiangli
parents: 49186
diff changeset
   440
             _long_mirror  != NULL && _short_mirror  != NULL &&
04ed29f9ef33 8194759: Support caching class mirror objects.
jiangli
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diff changeset
   441
             _void_mirror  != NULL, "Sanity");
04ed29f9ef33 8194759: Support caching class mirror objects.
jiangli
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diff changeset
   442
    } else
04ed29f9ef33 8194759: Support caching class mirror objects.
jiangli
parents: 49186
diff changeset
   443
#endif
04ed29f9ef33 8194759: Support caching class mirror objects.
jiangli
parents: 49186
diff changeset
   444
    {
04ed29f9ef33 8194759: Support caching class mirror objects.
jiangli
parents: 49186
diff changeset
   445
      _int_mirror     =
04ed29f9ef33 8194759: Support caching class mirror objects.
jiangli
parents: 49186
diff changeset
   446
        java_lang_Class::create_basic_type_mirror("int",    T_INT, CHECK);
04ed29f9ef33 8194759: Support caching class mirror objects.
jiangli
parents: 49186
diff changeset
   447
      _float_mirror   =
04ed29f9ef33 8194759: Support caching class mirror objects.
jiangli
parents: 49186
diff changeset
   448
        java_lang_Class::create_basic_type_mirror("float",  T_FLOAT,   CHECK);
04ed29f9ef33 8194759: Support caching class mirror objects.
jiangli
parents: 49186
diff changeset
   449
      _double_mirror  =
04ed29f9ef33 8194759: Support caching class mirror objects.
jiangli
parents: 49186
diff changeset
   450
        java_lang_Class::create_basic_type_mirror("double", T_DOUBLE,  CHECK);
04ed29f9ef33 8194759: Support caching class mirror objects.
jiangli
parents: 49186
diff changeset
   451
      _byte_mirror    =
04ed29f9ef33 8194759: Support caching class mirror objects.
jiangli
parents: 49186
diff changeset
   452
        java_lang_Class::create_basic_type_mirror("byte",   T_BYTE, CHECK);
04ed29f9ef33 8194759: Support caching class mirror objects.
jiangli
parents: 49186
diff changeset
   453
      _bool_mirror    =
04ed29f9ef33 8194759: Support caching class mirror objects.
jiangli
parents: 49186
diff changeset
   454
        java_lang_Class::create_basic_type_mirror("boolean",T_BOOLEAN, CHECK);
04ed29f9ef33 8194759: Support caching class mirror objects.
jiangli
parents: 49186
diff changeset
   455
      _char_mirror    =
04ed29f9ef33 8194759: Support caching class mirror objects.
jiangli
parents: 49186
diff changeset
   456
        java_lang_Class::create_basic_type_mirror("char",   T_CHAR, CHECK);
04ed29f9ef33 8194759: Support caching class mirror objects.
jiangli
parents: 49186
diff changeset
   457
      _long_mirror    =
04ed29f9ef33 8194759: Support caching class mirror objects.
jiangli
parents: 49186
diff changeset
   458
        java_lang_Class::create_basic_type_mirror("long",   T_LONG, CHECK);
04ed29f9ef33 8194759: Support caching class mirror objects.
jiangli
parents: 49186
diff changeset
   459
      _short_mirror   =
04ed29f9ef33 8194759: Support caching class mirror objects.
jiangli
parents: 49186
diff changeset
   460
        java_lang_Class::create_basic_type_mirror("short",  T_SHORT,   CHECK);
04ed29f9ef33 8194759: Support caching class mirror objects.
jiangli
parents: 49186
diff changeset
   461
      _void_mirror    =
04ed29f9ef33 8194759: Support caching class mirror objects.
jiangli
parents: 49186
diff changeset
   462
        java_lang_Class::create_basic_type_mirror("void",   T_VOID, CHECK);
04ed29f9ef33 8194759: Support caching class mirror objects.
jiangli
parents: 49186
diff changeset
   463
    }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   464
489c9b5090e2 Initial load
duke
parents:
diff changeset
   465
    _mirrors[T_INT]     = _int_mirror;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   466
    _mirrors[T_FLOAT]   = _float_mirror;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   467
    _mirrors[T_DOUBLE]  = _double_mirror;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   468
    _mirrors[T_BYTE]    = _byte_mirror;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   469
    _mirrors[T_BOOLEAN] = _bool_mirror;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   470
    _mirrors[T_CHAR]    = _char_mirror;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   471
    _mirrors[T_LONG]    = _long_mirror;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   472
    _mirrors[T_SHORT]   = _short_mirror;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   473
    _mirrors[T_VOID]    = _void_mirror;
33602
16053580a684 8139163: InstanceKlass::cast passes through NULL
coleenp
parents: 33230
diff changeset
   474
  //_mirrors[T_OBJECT]  = _object_klass->java_mirror();
16053580a684 8139163: InstanceKlass::cast passes through NULL
coleenp
parents: 33230
diff changeset
   475
  //_mirrors[T_ARRAY]   = _object_klass->java_mirror();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   476
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   477
489c9b5090e2 Initial load
duke
parents:
diff changeset
   478
void Universe::fixup_mirrors(TRAPS) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   479
  // Bootstrap problem: all classes gets a mirror (java.lang.Class instance) assigned eagerly,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   480
  // but we cannot do that for classes created before java.lang.Class is loaded. Here we simply
489c9b5090e2 Initial load
duke
parents:
diff changeset
   481
  // walk over permanent objects created so far (mostly classes) and fixup their mirrors. Note
489c9b5090e2 Initial load
duke
parents:
diff changeset
   482
  // that the number of objects allocated at this point is very small.
4571
80b553bddc26 6914300: ciEnv should export all well known classes
never
parents: 4450
diff changeset
   483
  assert(SystemDictionary::Class_klass_loaded(), "java.lang.Class should be loaded");
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   484
  HandleMark hm(THREAD);
51491
187c84a5efe1 8208658: Make CDS archived heap regions usable even if compressed oop encoding has changed
iklam
parents: 51329
diff changeset
   485
187c84a5efe1 8208658: Make CDS archived heap regions usable even if compressed oop encoding has changed
iklam
parents: 51329
diff changeset
   486
  if (!UseSharedSpaces) {
187c84a5efe1 8208658: Make CDS archived heap regions usable even if compressed oop encoding has changed
iklam
parents: 51329
diff changeset
   487
    // Cache the start of the static fields
187c84a5efe1 8208658: Make CDS archived heap regions usable even if compressed oop encoding has changed
iklam
parents: 51329
diff changeset
   488
    InstanceMirrorKlass::init_offset_of_static_fields();
187c84a5efe1 8208658: Make CDS archived heap regions usable even if compressed oop encoding has changed
iklam
parents: 51329
diff changeset
   489
  }
8725
8c1e3dd5fe1b 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 8724
diff changeset
   490
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   491
  GrowableArray <Klass*>* list = java_lang_Class::fixup_mirror_list();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   492
  int list_length = list->length();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   493
  for (int i = 0; i < list_length; i++) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   494
    Klass* k = list->at(i);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   495
    assert(k->is_klass(), "List should only hold classes");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   496
    EXCEPTION_MARK;
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46324
diff changeset
   497
    java_lang_Class::fixup_mirror(k, CATCH);
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46324
diff changeset
   498
  }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   499
  delete java_lang_Class::fixup_mirror_list();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   500
  java_lang_Class::set_fixup_mirror_list(NULL);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   501
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   502
40892
330a02d935ad 8156500: Move Reference pending list into VM to prevent deadlocks
kbarrett
parents: 40667
diff changeset
   503
#define assert_pll_locked(test) \
330a02d935ad 8156500: Move Reference pending list into VM to prevent deadlocks
kbarrett
parents: 40667
diff changeset
   504
  assert(Heap_lock->test(), "Reference pending list access requires lock")
330a02d935ad 8156500: Move Reference pending list into VM to prevent deadlocks
kbarrett
parents: 40667
diff changeset
   505
330a02d935ad 8156500: Move Reference pending list into VM to prevent deadlocks
kbarrett
parents: 40667
diff changeset
   506
#define assert_pll_ownership() assert_pll_locked(owned_by_self)
330a02d935ad 8156500: Move Reference pending list into VM to prevent deadlocks
kbarrett
parents: 40667
diff changeset
   507
330a02d935ad 8156500: Move Reference pending list into VM to prevent deadlocks
kbarrett
parents: 40667
diff changeset
   508
oop Universe::reference_pending_list() {
46116
94a8161e3509 8185133: Reference pending list root might not get marked
mgerdin
parents: 42650
diff changeset
   509
  if (Thread::current()->is_VM_thread()) {
94a8161e3509 8185133: Reference pending list root might not get marked
mgerdin
parents: 42650
diff changeset
   510
    assert_pll_locked(is_locked);
94a8161e3509 8185133: Reference pending list root might not get marked
mgerdin
parents: 42650
diff changeset
   511
  } else {
94a8161e3509 8185133: Reference pending list root might not get marked
mgerdin
parents: 42650
diff changeset
   512
    assert_pll_ownership();
94a8161e3509 8185133: Reference pending list root might not get marked
mgerdin
parents: 42650
diff changeset
   513
  }
40892
330a02d935ad 8156500: Move Reference pending list into VM to prevent deadlocks
kbarrett
parents: 40667
diff changeset
   514
  return _reference_pending_list;
330a02d935ad 8156500: Move Reference pending list into VM to prevent deadlocks
kbarrett
parents: 40667
diff changeset
   515
}
330a02d935ad 8156500: Move Reference pending list into VM to prevent deadlocks
kbarrett
parents: 40667
diff changeset
   516
330a02d935ad 8156500: Move Reference pending list into VM to prevent deadlocks
kbarrett
parents: 40667
diff changeset
   517
void Universe::set_reference_pending_list(oop list) {
330a02d935ad 8156500: Move Reference pending list into VM to prevent deadlocks
kbarrett
parents: 40667
diff changeset
   518
  assert_pll_ownership();
330a02d935ad 8156500: Move Reference pending list into VM to prevent deadlocks
kbarrett
parents: 40667
diff changeset
   519
  _reference_pending_list = list;
330a02d935ad 8156500: Move Reference pending list into VM to prevent deadlocks
kbarrett
parents: 40667
diff changeset
   520
}
330a02d935ad 8156500: Move Reference pending list into VM to prevent deadlocks
kbarrett
parents: 40667
diff changeset
   521
330a02d935ad 8156500: Move Reference pending list into VM to prevent deadlocks
kbarrett
parents: 40667
diff changeset
   522
bool Universe::has_reference_pending_list() {
330a02d935ad 8156500: Move Reference pending list into VM to prevent deadlocks
kbarrett
parents: 40667
diff changeset
   523
  assert_pll_ownership();
330a02d935ad 8156500: Move Reference pending list into VM to prevent deadlocks
kbarrett
parents: 40667
diff changeset
   524
  return _reference_pending_list != NULL;
330a02d935ad 8156500: Move Reference pending list into VM to prevent deadlocks
kbarrett
parents: 40667
diff changeset
   525
}
330a02d935ad 8156500: Move Reference pending list into VM to prevent deadlocks
kbarrett
parents: 40667
diff changeset
   526
330a02d935ad 8156500: Move Reference pending list into VM to prevent deadlocks
kbarrett
parents: 40667
diff changeset
   527
oop Universe::swap_reference_pending_list(oop list) {
330a02d935ad 8156500: Move Reference pending list into VM to prevent deadlocks
kbarrett
parents: 40667
diff changeset
   528
  assert_pll_locked(is_locked);
47634
6a0c42c40cd1 8188220: Remove Atomic::*_ptr() uses and overloads from hotspot
coleenp
parents: 47622
diff changeset
   529
  return Atomic::xchg(list, &_reference_pending_list);
40892
330a02d935ad 8156500: Move Reference pending list into VM to prevent deadlocks
kbarrett
parents: 40667
diff changeset
   530
}
330a02d935ad 8156500: Move Reference pending list into VM to prevent deadlocks
kbarrett
parents: 40667
diff changeset
   531
330a02d935ad 8156500: Move Reference pending list into VM to prevent deadlocks
kbarrett
parents: 40667
diff changeset
   532
#undef assert_pll_locked
330a02d935ad 8156500: Move Reference pending list into VM to prevent deadlocks
kbarrett
parents: 40667
diff changeset
   533
#undef assert_pll_ownership
330a02d935ad 8156500: Move Reference pending list into VM to prevent deadlocks
kbarrett
parents: 40667
diff changeset
   534
52356
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
   535
// initialize_vtable could cause gc if
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
   536
// 1) we specified true to initialize_vtable and
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
   537
// 2) this ran after gc was enabled
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
   538
// In case those ever change we use handles for oops
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46324
diff changeset
   539
void Universe::reinitialize_vtable_of(Klass* ko, TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   540
  // init vtable of k and all subclasses
46408
70aab0c2ea8b 8178350: klassVtable and klassItable should be ValueObj
iklam
parents: 46329
diff changeset
   541
  ko->vtable().initialize_vtable(false, CHECK);
33611
9abd65805e19 8139203: Consistent naming for klass type predicates
coleenp
parents: 33602
diff changeset
   542
  if (ko->is_instance_klass()) {
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46324
diff changeset
   543
    for (Klass* sk = ko->subklass();
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46324
diff changeset
   544
         sk != NULL;
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46324
diff changeset
   545
         sk = sk->next_sibling()) {
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46324
diff changeset
   546
      reinitialize_vtable_of(sk, CHECK);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   547
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   548
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   549
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   550
489c9b5090e2 Initial load
duke
parents:
diff changeset
   551
46729
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46701
diff changeset
   552
void initialize_itable_for_klass(InstanceKlass* k, TRAPS) {
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46701
diff changeset
   553
  k->itable().initialize_itable(false, CHECK);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   554
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   555
489c9b5090e2 Initial load
duke
parents:
diff changeset
   556
489c9b5090e2 Initial load
duke
parents:
diff changeset
   557
void Universe::reinitialize_itables(TRAPS) {
51608
625a5bdde0c5 8210155: Lock ClassLoaderDataGraph
coleenp
parents: 51554
diff changeset
   558
  MutexLocker mcld(ClassLoaderDataGraph_lock);
46729
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46701
diff changeset
   559
  ClassLoaderDataGraph::dictionary_classes_do(initialize_itable_for_klass, CHECK);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   560
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   561
489c9b5090e2 Initial load
duke
parents:
diff changeset
   562
489c9b5090e2 Initial load
duke
parents:
diff changeset
   563
bool Universe::on_page_boundary(void* addr) {
46619
a3919f5e8d2b 8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents: 46618
diff changeset
   564
  return is_aligned(addr, os::vm_page_size());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   565
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   566
489c9b5090e2 Initial load
duke
parents:
diff changeset
   567
489c9b5090e2 Initial load
duke
parents:
diff changeset
   568
bool Universe::should_fill_in_stack_trace(Handle throwable) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   569
  // never attempt to fill in the stack trace of preallocated errors that do not have
489c9b5090e2 Initial load
duke
parents:
diff changeset
   570
  // backtrace. These errors are kept alive forever and may be "re-used" when all
489c9b5090e2 Initial load
duke
parents:
diff changeset
   571
  // preallocated errors with backtrace have been consumed. Also need to avoid
489c9b5090e2 Initial load
duke
parents:
diff changeset
   572
  // a potential loop which could happen if an out of memory occurs when attempting
489c9b5090e2 Initial load
duke
parents:
diff changeset
   573
  // to allocate the backtrace.
49658
8237a91c1cca 8199781: Don't use naked == for comparing oops
rkennke
parents: 49629
diff changeset
   574
  return ((!oopDesc::equals(throwable(), Universe::_out_of_memory_error_java_heap)) &&
8237a91c1cca 8199781: Don't use naked == for comparing oops
rkennke
parents: 49629
diff changeset
   575
          (!oopDesc::equals(throwable(), Universe::_out_of_memory_error_metaspace))  &&
8237a91c1cca 8199781: Don't use naked == for comparing oops
rkennke
parents: 49629
diff changeset
   576
          (!oopDesc::equals(throwable(), Universe::_out_of_memory_error_class_metaspace))  &&
8237a91c1cca 8199781: Don't use naked == for comparing oops
rkennke
parents: 49629
diff changeset
   577
          (!oopDesc::equals(throwable(), Universe::_out_of_memory_error_array_size)) &&
8237a91c1cca 8199781: Don't use naked == for comparing oops
rkennke
parents: 49629
diff changeset
   578
          (!oopDesc::equals(throwable(), Universe::_out_of_memory_error_gc_overhead_limit)) &&
52033
d6aa9ea2405d 8208686: [AOT] JVMTI ResourceExhausted event repeated for same allocation
dnsimon
parents: 51959
diff changeset
   579
          (!oopDesc::equals(throwable(), Universe::_out_of_memory_error_realloc_objects)) &&
d6aa9ea2405d 8208686: [AOT] JVMTI ResourceExhausted event repeated for same allocation
dnsimon
parents: 51959
diff changeset
   580
          (!oopDesc::equals(throwable(), Universe::_out_of_memory_error_retry)));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   581
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   582
489c9b5090e2 Initial load
duke
parents:
diff changeset
   583
489c9b5090e2 Initial load
duke
parents:
diff changeset
   584
oop Universe::gen_out_of_memory_error(oop default_err) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   585
  // generate an out of memory error:
40892
330a02d935ad 8156500: Move Reference pending list into VM to prevent deadlocks
kbarrett
parents: 40667
diff changeset
   586
  // - if there is a preallocated error and stack traces are available
330a02d935ad 8156500: Move Reference pending list into VM to prevent deadlocks
kbarrett
parents: 40667
diff changeset
   587
  //   (j.l.Throwable is initialized), then return the preallocated
330a02d935ad 8156500: Move Reference pending list into VM to prevent deadlocks
kbarrett
parents: 40667
diff changeset
   588
  //   error with a filled in stack trace, and with the message
330a02d935ad 8156500: Move Reference pending list into VM to prevent deadlocks
kbarrett
parents: 40667
diff changeset
   589
  //   provided by the default error.
330a02d935ad 8156500: Move Reference pending list into VM to prevent deadlocks
kbarrett
parents: 40667
diff changeset
   590
  // - otherwise, return the default error, without a stack trace.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   591
  int next;
40892
330a02d935ad 8156500: Move Reference pending list into VM to prevent deadlocks
kbarrett
parents: 40667
diff changeset
   592
  if ((_preallocated_out_of_memory_error_avail_count > 0) &&
330a02d935ad 8156500: Move Reference pending list into VM to prevent deadlocks
kbarrett
parents: 40667
diff changeset
   593
      SystemDictionary::Throwable_klass()->is_initialized()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   594
    next = (int)Atomic::add(-1, &_preallocated_out_of_memory_error_avail_count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   595
    assert(next < (int)PreallocatedOutOfMemoryErrorCount, "avail count is corrupt");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   596
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   597
    next = -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   598
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   599
  if (next < 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   600
    // all preallocated errors have been used.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   601
    // return default
489c9b5090e2 Initial load
duke
parents:
diff changeset
   602
    return default_err;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   603
  } else {
46271
979ebd346ecf 8169881: Remove implicit Handle conversions oop->Handle
coleenp
parents: 42650
diff changeset
   604
    Thread* THREAD = Thread::current();
979ebd346ecf 8169881: Remove implicit Handle conversions oop->Handle
coleenp
parents: 42650
diff changeset
   605
    Handle default_err_h(THREAD, default_err);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   606
    // get the error object at the slot and set set it to NULL so that the
489c9b5090e2 Initial load
duke
parents:
diff changeset
   607
    // array isn't keeping it alive anymore.
46271
979ebd346ecf 8169881: Remove implicit Handle conversions oop->Handle
coleenp
parents: 42650
diff changeset
   608
    Handle exc(THREAD, preallocated_out_of_memory_errors()->obj_at(next));
979ebd346ecf 8169881: Remove implicit Handle conversions oop->Handle
coleenp
parents: 42650
diff changeset
   609
    assert(exc() != NULL, "slot has been used already");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   610
    preallocated_out_of_memory_errors()->obj_at_put(next, NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   611
489c9b5090e2 Initial load
duke
parents:
diff changeset
   612
    // use the message from the default error
46271
979ebd346ecf 8169881: Remove implicit Handle conversions oop->Handle
coleenp
parents: 42650
diff changeset
   613
    oop msg = java_lang_Throwable::message(default_err_h());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   614
    assert(msg != NULL, "no message");
46271
979ebd346ecf 8169881: Remove implicit Handle conversions oop->Handle
coleenp
parents: 42650
diff changeset
   615
    java_lang_Throwable::set_message(exc(), msg);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   616
489c9b5090e2 Initial load
duke
parents:
diff changeset
   617
    // populate the stack trace and return it.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   618
    java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(exc);
46271
979ebd346ecf 8169881: Remove implicit Handle conversions oop->Handle
coleenp
parents: 42650
diff changeset
   619
    return exc();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   620
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   621
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   622
20011
d74937287461 8024760: add more types, fields and constants to VMStructs
twisti
parents: 19546
diff changeset
   623
intptr_t Universe::_non_oop_bits = 0;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   624
489c9b5090e2 Initial load
duke
parents:
diff changeset
   625
void* Universe::non_oop_word() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   626
  // Neither the high bits nor the low bits of this value is allowed
489c9b5090e2 Initial load
duke
parents:
diff changeset
   627
  // to look like (respectively) the high or low bits of a real oop.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   628
  //
489c9b5090e2 Initial load
duke
parents:
diff changeset
   629
  // High and low are CPU-specific notions, but low always includes
489c9b5090e2 Initial load
duke
parents:
diff changeset
   630
  // the low-order bit.  Since oops are always aligned at least mod 4,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   631
  // setting the low-order bit will ensure that the low half of the
489c9b5090e2 Initial load
duke
parents:
diff changeset
   632
  // word will never look like that of a real oop.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   633
  //
489c9b5090e2 Initial load
duke
parents:
diff changeset
   634
  // Using the OS-supplied non-memory-address word (usually 0 or -1)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   635
  // will take care of the high bits, however many there are.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   636
20011
d74937287461 8024760: add more types, fields and constants to VMStructs
twisti
parents: 19546
diff changeset
   637
  if (_non_oop_bits == 0) {
d74937287461 8024760: add more types, fields and constants to VMStructs
twisti
parents: 19546
diff changeset
   638
    _non_oop_bits = (intptr_t)os::non_memory_address_word() | 1;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   639
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   640
20011
d74937287461 8024760: add more types, fields and constants to VMStructs
twisti
parents: 19546
diff changeset
   641
  return (void*)_non_oop_bits;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   642
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   643
52384
d6dc479bcdd3 8212681: Refactor IC locking to use a fine grained CompiledICLocker
eosterlund
parents: 52356
diff changeset
   644
static void initialize_global_behaviours() {
d6dc479bcdd3 8212681: Refactor IC locking to use a fine grained CompiledICLocker
eosterlund
parents: 52356
diff changeset
   645
  CompiledICProtectionBehaviour::set_current(new DefaultICProtectionBehaviour());
d6dc479bcdd3 8212681: Refactor IC locking to use a fine grained CompiledICLocker
eosterlund
parents: 52356
diff changeset
   646
}
d6dc479bcdd3 8212681: Refactor IC locking to use a fine grained CompiledICLocker
eosterlund
parents: 52356
diff changeset
   647
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   648
jint universe_init() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   649
  assert(!Universe::_fully_initialized, "called after initialize_vtables");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   650
  guarantee(1 << LogHeapWordSize == sizeof(HeapWord),
489c9b5090e2 Initial load
duke
parents:
diff changeset
   651
         "LogHeapWordSize is incorrect.");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   652
  guarantee(sizeof(oop) >= sizeof(HeapWord), "HeapWord larger than oop?");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   653
  guarantee(sizeof(oop) % sizeof(HeapWord) == 0,
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
   654
            "oop size is not not a multiple of HeapWord size");
36178
9739f8c767da 8148630: Convert TraceStartupTime to Unified Logging
rprotacio
parents: 35509
diff changeset
   655
37161
e881f320966e 8150015: Integrate TraceTime with Unified Logging more seamlessly
rehn
parents: 37084
diff changeset
   656
  TraceTime timer("Genesis", TRACETIME_LOG(Info, startuptime));
36178
9739f8c767da 8148630: Convert TraceStartupTime to Unified Logging
rprotacio
parents: 35509
diff changeset
   657
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   658
  JavaClasses::compute_hard_coded_offsets();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   659
52384
d6dc479bcdd3 8212681: Refactor IC locking to use a fine grained CompiledICLocker
eosterlund
parents: 52356
diff changeset
   660
  initialize_global_behaviours();
d6dc479bcdd3 8212681: Refactor IC locking to use a fine grained CompiledICLocker
eosterlund
parents: 52356
diff changeset
   661
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   662
  jint status = Universe::initialize_heap();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   663
  if (status != JNI_OK) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   664
    return status;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   665
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   666
49738
a7bc87a63dd8 8198313: Wrap holder object for ClassLoaderData in a WeakHandle
coleenp
parents: 49658
diff changeset
   667
  SystemDictionary::initialize_oop_storage();
a7bc87a63dd8 8198313: Wrap holder object for ClassLoaderData in a WeakHandle
coleenp
parents: 49658
diff changeset
   668
19319
0ad35be0733a 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 19278
diff changeset
   669
  Metaspace::global_initialize();
0ad35be0733a 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 19278
diff changeset
   670
48092
72855b7d10ac 8187819: gc/TestFullGCALot.java fails on jdk10 started with "-XX:-UseCompressedOops" option
aharlap
parents: 47913
diff changeset
   671
  // Initialize performance counters for metaspaces
72855b7d10ac 8187819: gc/TestFullGCALot.java fails on jdk10 started with "-XX:-UseCompressedOops" option
aharlap
parents: 47913
diff changeset
   672
  MetaspaceCounters::initialize_performance_counters();
72855b7d10ac 8187819: gc/TestFullGCALot.java fails on jdk10 started with "-XX:-UseCompressedOops" option
aharlap
parents: 47913
diff changeset
   673
  CompressedClassSpaceCounters::initialize_performance_counters();
72855b7d10ac 8187819: gc/TestFullGCALot.java fails on jdk10 started with "-XX:-UseCompressedOops" option
aharlap
parents: 47913
diff changeset
   674
42650
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 40892
diff changeset
   675
  AOTLoader::universe_init();
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 40892
diff changeset
   676
31995
aa4049b4184a 8130459: Add additional validation after heap creation
sangheki
parents: 31592
diff changeset
   677
  // Checks 'AfterMemoryInit' constraints.
49902
3661f31c6df4 8202150: [REDO] Split globals.hpp to factor out the Flag class
gziemski
parents: 49860
diff changeset
   678
  if (!JVMFlagConstraintList::check_constraints(JVMFlagConstraint::AfterMemoryInit)) {
31995
aa4049b4184a 8130459: Add additional validation after heap creation
sangheki
parents: 31592
diff changeset
   679
    return JNI_EINVAL;
aa4049b4184a 8130459: Add additional validation after heap creation
sangheki
parents: 31592
diff changeset
   680
  }
aa4049b4184a 8130459: Add additional validation after heap creation
sangheki
parents: 31592
diff changeset
   681
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   682
  // Create memory for metadata.  Must be after initializing heap for
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   683
  // DumpSharedSpaces.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   684
  ClassLoaderData::init_null_class_loader_data();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   685
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   686
  // We have a heap so create the Method* caches before
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   687
  // Metaspace::initialize_shared_spaces() tries to populate them.
19278
c4355bebb414 8009728: nsk/jvmti/AttachOnDemand/attach030 crashes on Win32
coleenp
parents: 18687
diff changeset
   688
  Universe::_finalizer_register_cache = new LatestMethodCache();
c4355bebb414 8009728: nsk/jvmti/AttachOnDemand/attach030 crashes on Win32
coleenp
parents: 18687
diff changeset
   689
  Universe::_loader_addClass_cache    = new LatestMethodCache();
c4355bebb414 8009728: nsk/jvmti/AttachOnDemand/attach030 crashes on Win32
coleenp
parents: 18687
diff changeset
   690
  Universe::_pd_implies_cache         = new LatestMethodCache();
28734
a7ef74a8eca2 8068162: jvmtiRedefineClasses.cpp: guarantee(false) failed: OLD and/or OBSOLETE method(s) found
sspitsyn
parents: 28374
diff changeset
   691
  Universe::_throw_illegal_access_error_cache = new LatestMethodCache();
34280
72bfaaffee36 8143911: Reintegrate JEP 259: Stack-Walking API
mchung
parents: 34273
diff changeset
   692
  Universe::_do_stack_walk_cache = new LatestMethodCache();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   693
46689
59f0972cf342 8184323: compile-time guard some UseSharedSpaces-only coding with the INCLUDE_CDS macro
mbaesken
parents: 46630
diff changeset
   694
#if INCLUDE_CDS
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   695
  if (UseSharedSpaces) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   696
    // Read the data structures supporting the shared spaces (shared
489c9b5090e2 Initial load
duke
parents:
diff changeset
   697
    // system dictionary, symbol table, etc.).  After that, access to
489c9b5090e2 Initial load
duke
parents:
diff changeset
   698
    // the file (other than the mapped regions) is no longer needed, and
489c9b5090e2 Initial load
duke
parents:
diff changeset
   699
    // the file is closed. Closing the file does not affect the
489c9b5090e2 Initial load
duke
parents:
diff changeset
   700
    // currently mapped regions.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   701
    MetaspaceShared::initialize_shared_spaces();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   702
    StringTable::create_table();
46689
59f0972cf342 8184323: compile-time guard some UseSharedSpaces-only coding with the INCLUDE_CDS macro
mbaesken
parents: 46630
diff changeset
   703
  } else
59f0972cf342 8184323: compile-time guard some UseSharedSpaces-only coding with the INCLUDE_CDS macro
mbaesken
parents: 46630
diff changeset
   704
#endif
59f0972cf342 8184323: compile-time guard some UseSharedSpaces-only coding with the INCLUDE_CDS macro
mbaesken
parents: 46630
diff changeset
   705
  {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   706
    SymbolTable::create_table();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   707
    StringTable::create_table();
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25485
diff changeset
   708
46689
59f0972cf342 8184323: compile-time guard some UseSharedSpaces-only coding with the INCLUDE_CDS macro
mbaesken
parents: 46630
diff changeset
   709
#if INCLUDE_CDS
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25485
diff changeset
   710
    if (DumpSharedSpaces) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25485
diff changeset
   711
      MetaspaceShared::prepare_for_dumping();
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25485
diff changeset
   712
    }
46689
59f0972cf342 8184323: compile-time guard some UseSharedSpaces-only coding with the INCLUDE_CDS macro
mbaesken
parents: 46630
diff changeset
   713
#endif
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   714
  }
35509
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
   715
  if (strlen(VerifySubSet) > 0) {
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
   716
    Universe::initialize_verify_flags();
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
   717
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   718
46505
fd4bc78630b1 8174749: Use hash table/oops for MemberName table
coleenp
parents: 46408
diff changeset
   719
  ResolvedMethodTable::create_table();
fd4bc78630b1 8174749: Use hash table/oops for MemberName table
coleenp
parents: 46408
diff changeset
   720
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   721
  return JNI_OK;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   722
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   723
32375
b84c2d16ba53 8133821: Refactor initialization of the heap and the collector policy
ehelin
parents: 31995
diff changeset
   724
CollectedHeap* Universe::create_heap() {
30260
a7bfa4e20897 8077417: Cleanup of Universe::initialize_heap()
pliden
parents: 29800
diff changeset
   725
  assert(_collectedHeap == NULL, "Heap already created");
49629
b786280276dc 8199925: Break out GC selection logic from GCArguments to GCConfig
pliden
parents: 49602
diff changeset
   726
  return GCConfig::arguments()->create_heap();
30260
a7bfa4e20897 8077417: Cleanup of Universe::initialize_heap()
pliden
parents: 29800
diff changeset
   727
}
a7bfa4e20897 8077417: Cleanup of Universe::initialize_heap()
pliden
parents: 29800
diff changeset
   728
2254
f13dda645a4b 6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents: 1681
diff changeset
   729
// Choose the heap base address and oop encoding mode
f13dda645a4b 6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents: 1681
diff changeset
   730
// when compressed oops are used:
f13dda645a4b 6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents: 1681
diff changeset
   731
// Unscaled  - Use 32-bits oops without encoding when
f13dda645a4b 6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents: 1681
diff changeset
   732
//     NarrowOopHeapBaseMin + heap_size < 4Gb
f13dda645a4b 6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents: 1681
diff changeset
   733
// ZeroBased - Use zero based compressed oops with encoding when
f13dda645a4b 6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents: 1681
diff changeset
   734
//     NarrowOopHeapBaseMin + heap_size < 32Gb
f13dda645a4b 6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents: 1681
diff changeset
   735
// HeapBased - Use compressed oops with heap base + encoding.
f13dda645a4b 6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents: 1681
diff changeset
   736
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   737
jint Universe::initialize_heap() {
49184
8026f64901de 8197841: Remove unused function Universe::create_heap_ext
ehelin
parents: 49054
diff changeset
   738
  _collectedHeap = create_heap();
8026f64901de 8197841: Remove unused function Universe::create_heap_ext
ehelin
parents: 49054
diff changeset
   739
  jint status = _collectedHeap->initialize();
30260
a7bfa4e20897 8077417: Cleanup of Universe::initialize_heap()
pliden
parents: 29800
diff changeset
   740
  if (status != JNI_OK) {
a7bfa4e20897 8077417: Cleanup of Universe::initialize_heap()
pliden
parents: 29800
diff changeset
   741
    return status;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   742
  }
35061
be6025ebffea 8145092: Use Unified Logging for the GC logging
brutisso
parents: 34319
diff changeset
   743
  log_info(gc)("Using %s", _collectedHeap->name());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   744
22552
a29022212180 8030177: G1: Enable TLAB resizing
brutisso
parents: 22551
diff changeset
   745
  ThreadLocalAllocBuffer::set_max_size(Universe::heap()->max_tlab_size());
a29022212180 8030177: G1: Enable TLAB resizing
brutisso
parents: 22551
diff changeset
   746
2254
f13dda645a4b 6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents: 1681
diff changeset
   747
#ifdef _LP64
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
   748
  if (UseCompressedOops) {
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
   749
    // Subtract a page because something can get allocated at heap base.
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
   750
    // This also makes implicit null checking work, because the
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
   751
    // memory+1 page below heap_base needs to cause a signal.
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
   752
    // See needs_explicit_null_check.
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
   753
    // Only set the heap base for compressed oops because it indicates
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
   754
    // compressed oops for pstack code.
28372
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   755
    if ((uint64_t)Universe::heap()->reserved_region().end() > UnscaledOopHeapMax) {
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   756
      // Didn't reserve heap below 4Gb.  Must shift.
2254
f13dda645a4b 6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents: 1681
diff changeset
   757
      Universe::set_narrow_oop_shift(LogMinObjAlignmentInBytes);
28372
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   758
    }
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   759
    if ((uint64_t)Universe::heap()->reserved_region().end() <= OopEncodingHeapMax) {
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   760
      // Did reserve heap below 32Gb. Can use base == 0;
2254
f13dda645a4b 6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents: 1681
diff changeset
   761
      Universe::set_narrow_oop_base(0);
f13dda645a4b 6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents: 1681
diff changeset
   762
    }
49847
f22c0b4caad7 8201850: [AOT] vm crash when run test compiler/aot/fingerprint/SelfChangedCDS.java
kvn
parents: 49824
diff changeset
   763
    AOTLoader::set_narrow_oop_shift();
19319
0ad35be0733a 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 19278
diff changeset
   764
26688
bb0cdd873e51 8022865: [TESTBUG] Compressed Oops testing needs to be revised
ctornqvi
parents: 26563
diff changeset
   765
    Universe::set_narrow_ptrs_base(Universe::narrow_oop_base());
bb0cdd873e51 8022865: [TESTBUG] Compressed Oops testing needs to be revised
ctornqvi
parents: 26563
diff changeset
   766
46701
f559541c0daa 8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents: 46689
diff changeset
   767
    LogTarget(Info, gc, heap, coops) lt;
f559541c0daa 8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents: 46689
diff changeset
   768
    if (lt.is_enabled()) {
37428
6e724f3d488b 8152896: Convert PrintCompressedOopsMode to Unified Logging
rprotacio
parents: 37248
diff changeset
   769
      ResourceMark rm;
46701
f559541c0daa 8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents: 46689
diff changeset
   770
      LogStream ls(lt);
f559541c0daa 8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents: 46689
diff changeset
   771
      Universe::print_compressed_oops_mode(&ls);
2254
f13dda645a4b 6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents: 1681
diff changeset
   772
    }
28372
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   773
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   774
    // Tell tests in which mode we run.
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   775
    Arguments::PropertyList_add(new SystemProperty("java.vm.compressedOopsMode",
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   776
                                                   narrow_oop_mode_to_string(narrow_oop_mode()),
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   777
                                                   false));
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
   778
  }
19319
0ad35be0733a 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 19278
diff changeset
   779
  // Universe::narrow_oop_base() is one page below the heap.
0ad35be0733a 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 19278
diff changeset
   780
  assert((intptr_t)Universe::narrow_oop_base() <= (intptr_t)(Universe::heap()->base() -
0ad35be0733a 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 19278
diff changeset
   781
         os::vm_page_size()) ||
2254
f13dda645a4b 6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents: 1681
diff changeset
   782
         Universe::narrow_oop_base() == NULL, "invalid value");
f13dda645a4b 6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents: 1681
diff changeset
   783
  assert(Universe::narrow_oop_shift() == LogMinObjAlignmentInBytes ||
f13dda645a4b 6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents: 1681
diff changeset
   784
         Universe::narrow_oop_shift() == 0, "invalid value");
f13dda645a4b 6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents: 1681
diff changeset
   785
#endif
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   786
489c9b5090e2 Initial load
duke
parents:
diff changeset
   787
  // We will never reach the CATCH below since Exceptions::_throw will cause
489c9b5090e2 Initial load
duke
parents:
diff changeset
   788
  // the VM to exit if an exception is thrown during initialization
489c9b5090e2 Initial load
duke
parents:
diff changeset
   789
489c9b5090e2 Initial load
duke
parents:
diff changeset
   790
  if (UseTLAB) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   791
    assert(Universe::heap()->supports_tlab_allocation(),
489c9b5090e2 Initial load
duke
parents:
diff changeset
   792
           "Should support thread-local allocation buffers");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   793
    ThreadLocalAllocBuffer::startup_initialization();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   794
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   795
  return JNI_OK;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   796
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   797
31335
60081f497e75 8035074: hs_err improvement: Add time zone information in the hs_err file
coleenp
parents: 30764
diff changeset
   798
void Universe::print_compressed_oops_mode(outputStream* st) {
37428
6e724f3d488b 8152896: Convert PrintCompressedOopsMode to Unified Logging
rprotacio
parents: 37248
diff changeset
   799
  st->print("Heap address: " PTR_FORMAT ", size: " SIZE_FORMAT " MB",
6e724f3d488b 8152896: Convert PrintCompressedOopsMode to Unified Logging
rprotacio
parents: 37248
diff changeset
   800
            p2i(Universe::heap()->base()), Universe::heap()->reserved_region().byte_size()/M);
26688
bb0cdd873e51 8022865: [TESTBUG] Compressed Oops testing needs to be revised
ctornqvi
parents: 26563
diff changeset
   801
31335
60081f497e75 8035074: hs_err improvement: Add time zone information in the hs_err file
coleenp
parents: 30764
diff changeset
   802
  st->print(", Compressed Oops mode: %s", narrow_oop_mode_to_string(narrow_oop_mode()));
26688
bb0cdd873e51 8022865: [TESTBUG] Compressed Oops testing needs to be revised
ctornqvi
parents: 26563
diff changeset
   803
bb0cdd873e51 8022865: [TESTBUG] Compressed Oops testing needs to be revised
ctornqvi
parents: 26563
diff changeset
   804
  if (Universe::narrow_oop_base() != 0) {
31335
60081f497e75 8035074: hs_err improvement: Add time zone information in the hs_err file
coleenp
parents: 30764
diff changeset
   805
    st->print(": " PTR_FORMAT, p2i(Universe::narrow_oop_base()));
26688
bb0cdd873e51 8022865: [TESTBUG] Compressed Oops testing needs to be revised
ctornqvi
parents: 26563
diff changeset
   806
  }
bb0cdd873e51 8022865: [TESTBUG] Compressed Oops testing needs to be revised
ctornqvi
parents: 26563
diff changeset
   807
bb0cdd873e51 8022865: [TESTBUG] Compressed Oops testing needs to be revised
ctornqvi
parents: 26563
diff changeset
   808
  if (Universe::narrow_oop_shift() != 0) {
31335
60081f497e75 8035074: hs_err improvement: Add time zone information in the hs_err file
coleenp
parents: 30764
diff changeset
   809
    st->print(", Oop shift amount: %d", Universe::narrow_oop_shift());
26688
bb0cdd873e51 8022865: [TESTBUG] Compressed Oops testing needs to be revised
ctornqvi
parents: 26563
diff changeset
   810
  }
bb0cdd873e51 8022865: [TESTBUG] Compressed Oops testing needs to be revised
ctornqvi
parents: 26563
diff changeset
   811
28372
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   812
  if (!Universe::narrow_oop_use_implicit_null_checks()) {
31335
60081f497e75 8035074: hs_err improvement: Add time zone information in the hs_err file
coleenp
parents: 30764
diff changeset
   813
    st->print(", no protected page in front of the heap");
28372
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   814
  }
31335
60081f497e75 8035074: hs_err improvement: Add time zone information in the hs_err file
coleenp
parents: 30764
diff changeset
   815
  st->cr();
26688
bb0cdd873e51 8022865: [TESTBUG] Compressed Oops testing needs to be revised
ctornqvi
parents: 26563
diff changeset
   816
}
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   817
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   818
ReservedSpace Universe::reserve_heap(size_t heap_size, size_t alignment) {
28372
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   819
19986
33d188c66ed9 8010722: assert: failed: heap size is too big for compressed oops
tschatzl
parents: 19979
diff changeset
   820
  assert(alignment <= Arguments::conservative_max_heap_alignment(),
33105
294e48b4f704 8080775: Better argument formatting for assert() and friends
david
parents: 32376
diff changeset
   821
         "actual alignment " SIZE_FORMAT " must be within maximum heap alignment " SIZE_FORMAT,
294e48b4f704 8080775: Better argument formatting for assert() and friends
david
parents: 32376
diff changeset
   822
         alignment, Arguments::conservative_max_heap_alignment());
28372
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   823
46619
a3919f5e8d2b 8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents: 46618
diff changeset
   824
  size_t total_reserved = align_up(heap_size, alignment);
15957
58302a2ffb9a 8001049: VM crashes when running with large -Xms and not specifying ObjectAlignmentInBytes
brutisso
parents: 15484
diff changeset
   825
  assert(!UseCompressedOops || (total_reserved <= (OopEncodingHeapMax - os::vm_page_size())),
58302a2ffb9a 8001049: VM crashes when running with large -Xms and not specifying ObjectAlignmentInBytes
brutisso
parents: 15484
diff changeset
   826
      "heap size is too big for compressed oops");
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   827
46619
a3919f5e8d2b 8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents: 46618
diff changeset
   828
  bool use_large_pages = UseLargePages && is_aligned(alignment, os::large_page_size());
19546
f6b7c9e96ea3 8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents: 19322
diff changeset
   829
  assert(!UseLargePages
19996
a98fdabb2ba9 8024396: VM crashing with assert(!UseLargePages || UseParallelOldGC || use_large_pages) failed: Wrong alignment to use large pages
tschatzl
parents: 19986
diff changeset
   830
      || UseParallelGC
19546
f6b7c9e96ea3 8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents: 19322
diff changeset
   831
      || use_large_pages, "Wrong alignment to use large pages");
f6b7c9e96ea3 8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents: 19322
diff changeset
   832
28372
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   833
  // Now create the space.
48153
cfa2c43e58c2 8190308: Implementation: JEP 316: Heap Allocation on Alternative Memory Devices
kkharbas
parents: 48092
diff changeset
   834
  ReservedHeapSpace total_rs(total_reserved, alignment, use_large_pages, AllocateHeapAt);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   835
28372
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   836
  if (total_rs.is_reserved()) {
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   837
    assert((total_reserved == total_rs.size()) && ((uintptr_t)total_rs.base() % alignment == 0),
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   838
           "must be exactly of required size and alignment");
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   839
    // We are good.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   840
28372
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   841
    if (UseCompressedOops) {
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   842
      // Universe::initialize_heap() will reset this to NULL if unscaled
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   843
      // or zero-based narrow oops are actually used.
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   844
      // Else heap start and base MUST differ, so that NULL can be encoded nonambigous.
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   845
      Universe::set_narrow_oop_base((address)total_rs.compressed_oop_base());
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   846
    }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   847
48153
cfa2c43e58c2 8190308: Implementation: JEP 316: Heap Allocation on Alternative Memory Devices
kkharbas
parents: 48092
diff changeset
   848
    if (AllocateHeapAt != NULL) {
cfa2c43e58c2 8190308: Implementation: JEP 316: Heap Allocation on Alternative Memory Devices
kkharbas
parents: 48092
diff changeset
   849
      log_info(gc,heap)("Successfully allocated Java heap at location %s", AllocateHeapAt);
cfa2c43e58c2 8190308: Implementation: JEP 316: Heap Allocation on Alternative Memory Devices
kkharbas
parents: 48092
diff changeset
   850
    }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   851
    return total_rs;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   852
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   853
28372
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   854
  vm_exit_during_initialization(
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   855
    err_msg("Could not reserve enough space for " SIZE_FORMAT "KB object heap",
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   856
            total_reserved/K));
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   857
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   858
  // satisfy compiler
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   859
  ShouldNotReachHere();
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   860
  return ReservedHeapSpace(0, 0, false);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   861
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   862
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   863
19319
0ad35be0733a 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 19278
diff changeset
   864
// It's the caller's responsibility to ensure glitch-freedom
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   865
// (if required).
489c9b5090e2 Initial load
duke
parents:
diff changeset
   866
void Universe::update_heap_info_at_gc() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   867
  _heap_capacity_at_last_gc = heap()->capacity();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   868
  _heap_used_at_last_gc     = heap()->used();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   869
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   870
489c9b5090e2 Initial load
duke
parents:
diff changeset
   871
18025
b7bcf7497f93 8005849: JEP 167: Event-Based JVM Tracing
sla
parents: 17841
diff changeset
   872
const char* Universe::narrow_oop_mode_to_string(Universe::NARROW_OOP_MODE mode) {
b7bcf7497f93 8005849: JEP 167: Event-Based JVM Tracing
sla
parents: 17841
diff changeset
   873
  switch (mode) {
b7bcf7497f93 8005849: JEP 167: Event-Based JVM Tracing
sla
parents: 17841
diff changeset
   874
    case UnscaledNarrowOop:
26688
bb0cdd873e51 8022865: [TESTBUG] Compressed Oops testing needs to be revised
ctornqvi
parents: 26563
diff changeset
   875
      return "32-bit";
18025
b7bcf7497f93 8005849: JEP 167: Event-Based JVM Tracing
sla
parents: 17841
diff changeset
   876
    case ZeroBasedNarrowOop:
26688
bb0cdd873e51 8022865: [TESTBUG] Compressed Oops testing needs to be revised
ctornqvi
parents: 26563
diff changeset
   877
      return "Zero based";
28372
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   878
    case DisjointBaseNarrowOop:
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   879
      return "Non-zero disjoint base";
18025
b7bcf7497f93 8005849: JEP 167: Event-Based JVM Tracing
sla
parents: 17841
diff changeset
   880
    case HeapBasedNarrowOop:
26688
bb0cdd873e51 8022865: [TESTBUG] Compressed Oops testing needs to be revised
ctornqvi
parents: 26563
diff changeset
   881
      return "Non-zero based";
46630
75aa3e39d02c 8182299: Enable disabled clang warnings, build on OSX 10 + Xcode 8
jwilhelm
parents: 46625
diff changeset
   882
    default:
75aa3e39d02c 8182299: Enable disabled clang warnings, build on OSX 10 + Xcode 8
jwilhelm
parents: 46625
diff changeset
   883
      ShouldNotReachHere();
75aa3e39d02c 8182299: Enable disabled clang warnings, build on OSX 10 + Xcode 8
jwilhelm
parents: 46625
diff changeset
   884
      return "";
18025
b7bcf7497f93 8005849: JEP 167: Event-Based JVM Tracing
sla
parents: 17841
diff changeset
   885
  }
b7bcf7497f93 8005849: JEP 167: Event-Based JVM Tracing
sla
parents: 17841
diff changeset
   886
}
b7bcf7497f93 8005849: JEP 167: Event-Based JVM Tracing
sla
parents: 17841
diff changeset
   887
b7bcf7497f93 8005849: JEP 167: Event-Based JVM Tracing
sla
parents: 17841
diff changeset
   888
b7bcf7497f93 8005849: JEP 167: Event-Based JVM Tracing
sla
parents: 17841
diff changeset
   889
Universe::NARROW_OOP_MODE Universe::narrow_oop_mode() {
28372
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   890
  if (narrow_oop_base_disjoint()) {
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   891
    return DisjointBaseNarrowOop;
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   892
  }
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 28363
diff changeset
   893
18025
b7bcf7497f93 8005849: JEP 167: Event-Based JVM Tracing
sla
parents: 17841
diff changeset
   894
  if (narrow_oop_base() != 0) {
b7bcf7497f93 8005849: JEP 167: Event-Based JVM Tracing
sla
parents: 17841
diff changeset
   895
    return HeapBasedNarrowOop;
b7bcf7497f93 8005849: JEP 167: Event-Based JVM Tracing
sla
parents: 17841
diff changeset
   896
  }
b7bcf7497f93 8005849: JEP 167: Event-Based JVM Tracing
sla
parents: 17841
diff changeset
   897
b7bcf7497f93 8005849: JEP 167: Event-Based JVM Tracing
sla
parents: 17841
diff changeset
   898
  if (narrow_oop_shift() != 0) {
b7bcf7497f93 8005849: JEP 167: Event-Based JVM Tracing
sla
parents: 17841
diff changeset
   899
    return ZeroBasedNarrowOop;
b7bcf7497f93 8005849: JEP 167: Event-Based JVM Tracing
sla
parents: 17841
diff changeset
   900
  }
b7bcf7497f93 8005849: JEP 167: Event-Based JVM Tracing
sla
parents: 17841
diff changeset
   901
b7bcf7497f93 8005849: JEP 167: Event-Based JVM Tracing
sla
parents: 17841
diff changeset
   902
  return UnscaledNarrowOop;
b7bcf7497f93 8005849: JEP 167: Event-Based JVM Tracing
sla
parents: 17841
diff changeset
   903
}
b7bcf7497f93 8005849: JEP 167: Event-Based JVM Tracing
sla
parents: 17841
diff changeset
   904
37186
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   905
void initialize_known_method(LatestMethodCache* method_cache,
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   906
                             InstanceKlass* ik,
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   907
                             const char* method,
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   908
                             Symbol* signature,
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   909
                             bool is_static, TRAPS)
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   910
{
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   911
  TempNewSymbol name = SymbolTable::new_symbol(method, CHECK);
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   912
  Method* m = NULL;
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   913
  // The klass must be linked before looking up the method.
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   914
  if (!ik->link_class_or_fail(THREAD) ||
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   915
      ((m = ik->find_method(name, signature)) == NULL) ||
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   916
      is_static != m->is_static()) {
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   917
    ResourceMark rm(THREAD);
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   918
    // NoSuchMethodException doesn't actually work because it tries to run the
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   919
    // <init> function before java_lang_Class is linked. Print error and exit.
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   920
    vm_exit_during_initialization(err_msg("Unable to link/verify %s.%s method",
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   921
                                 ik->name()->as_C_string(), method));
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   922
  }
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   923
  method_cache->init(ik, m);
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   924
}
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   925
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   926
void Universe::initialize_known_methods(TRAPS) {
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   927
  // Set up static method for registering finalizers
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   928
  initialize_known_method(_finalizer_register_cache,
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   929
                          SystemDictionary::Finalizer_klass(),
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   930
                          "register",
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   931
                          vmSymbols::object_void_signature(), true, CHECK);
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   932
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   933
  initialize_known_method(_throw_illegal_access_error_cache,
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   934
                          SystemDictionary::internal_Unsafe_klass(),
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   935
                          "throwIllegalAccessError",
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   936
                          vmSymbols::void_method_signature(), true, CHECK);
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   937
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   938
  // Set up method for registering loaded classes in class loader vector
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   939
  initialize_known_method(_loader_addClass_cache,
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   940
                          SystemDictionary::ClassLoader_klass(),
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   941
                          "addClass",
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   942
                          vmSymbols::class_void_signature(), false, CHECK);
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   943
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   944
  // Set up method for checking protection domain
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   945
  initialize_known_method(_pd_implies_cache,
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   946
                          SystemDictionary::ProtectionDomain_klass(),
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   947
                          "impliesCreateAccessControlContext",
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   948
                          vmSymbols::void_boolean_signature(), false, CHECK);
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   949
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   950
  // Set up method for stack walking
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   951
  initialize_known_method(_do_stack_walk_cache,
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   952
                          SystemDictionary::AbstractStackWalker_klass(),
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   953
                          "doStackWalk",
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   954
                          vmSymbols::doStackWalk_signature(), false, CHECK);
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   955
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   956
489c9b5090e2 Initial load
duke
parents:
diff changeset
   957
void universe2_init() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   958
  EXCEPTION_MARK;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   959
  Universe::genesis(CATCH);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   960
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   961
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36178
diff changeset
   962
// Set after initialization of the module runtime, call_initModuleRuntime
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36178
diff changeset
   963
void universe_post_module_init() {
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36178
diff changeset
   964
  Universe::_module_initialized = true;
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36178
diff changeset
   965
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   966
489c9b5090e2 Initial load
duke
parents:
diff changeset
   967
bool universe_post_init() {
7384
71eebb634028 7000578: CMS: assert(SafepointSynchronize::is_at_safepoint()) failed: Else races are possible
ysr
parents: 5702
diff changeset
   968
  assert(!is_init_completed(), "Error: initialization not yet completed!");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   969
  Universe::_fully_initialized = true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   970
  EXCEPTION_MARK;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   971
  { ResourceMark rm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   972
    Interpreter::initialize();      // needed for interpreter entry points
489c9b5090e2 Initial load
duke
parents:
diff changeset
   973
    if (!UseSharedSpaces) {
52356
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
   974
      HandleMark hm(THREAD);
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
   975
      Klass* ok = SystemDictionary::Object_klass();
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
   976
      Universe::reinitialize_vtable_of(ok, CHECK_false);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   977
      Universe::reinitialize_itables(CHECK_false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   978
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   979
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   980
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   981
  HandleMark hm(THREAD);
37186
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   982
  // Setup preallocated empty java.lang.Class array
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   983
  Universe::_the_empty_class_klass_array = oopFactory::new_objArray(SystemDictionary::Class_klass(), 0, CHECK_false);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   984
37186
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   985
  // Setup preallocated OutOfMemoryError errors
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46324
diff changeset
   986
  Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::java_lang_OutOfMemoryError(), true, CHECK_false);
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46324
diff changeset
   987
  InstanceKlass* ik = InstanceKlass::cast(k);
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46324
diff changeset
   988
  Universe::_out_of_memory_error_java_heap = ik->allocate_instance(CHECK_false);
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46324
diff changeset
   989
  Universe::_out_of_memory_error_metaspace = ik->allocate_instance(CHECK_false);
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46324
diff changeset
   990
  Universe::_out_of_memory_error_class_metaspace = ik->allocate_instance(CHECK_false);
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46324
diff changeset
   991
  Universe::_out_of_memory_error_array_size = ik->allocate_instance(CHECK_false);
37186
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   992
  Universe::_out_of_memory_error_gc_overhead_limit =
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46324
diff changeset
   993
    ik->allocate_instance(CHECK_false);
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46324
diff changeset
   994
  Universe::_out_of_memory_error_realloc_objects = ik->allocate_instance(CHECK_false);
52033
d6aa9ea2405d 8208686: [AOT] JVMTI ResourceExhausted event repeated for same allocation
dnsimon
parents: 51959
diff changeset
   995
  Universe::_out_of_memory_error_retry = ik->allocate_instance(CHECK_false);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   996
37186
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   997
  // Setup preallocated cause message for delayed StackOverflowError
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   998
  if (StackReservedPages > 0) {
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
   999
    Universe::_delayed_stack_overflow_error_message =
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
  1000
      java_lang_String::create_oop_from_str("Delayed StackOverflowError due to ReservedStackAccess annotated method", CHECK_false);
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
  1001
  }
35071
a0910b1d3e0d 8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents: 35061
diff changeset
  1002
37186
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
  1003
  // Setup preallocated NullPointerException
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
  1004
  // (this is currently used for a cheap & dirty solution in compiler exception handling)
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
  1005
  k = SystemDictionary::resolve_or_fail(vmSymbols::java_lang_NullPointerException(), true, CHECK_false);
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
  1006
  Universe::_null_ptr_exception_instance = InstanceKlass::cast(k)->allocate_instance(CHECK_false);
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
  1007
  // Setup preallocated ArithmeticException
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
  1008
  // (this is currently used for a cheap & dirty solution in compiler exception handling)
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
  1009
  k = SystemDictionary::resolve_or_fail(vmSymbols::java_lang_ArithmeticException(), true, CHECK_false);
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
  1010
  Universe::_arithmetic_exception_instance = InstanceKlass::cast(k)->allocate_instance(CHECK_false);
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
  1011
  // Virtual Machine Error for when we get into a situation we can't resolve
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
  1012
  k = SystemDictionary::resolve_or_fail(
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
  1013
    vmSymbols::java_lang_VirtualMachineError(), true, CHECK_false);
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
  1014
  bool linked = InstanceKlass::cast(k)->link_class_or_fail(CHECK_false);
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
  1015
  if (!linked) {
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46324
diff changeset
  1016
     tty->print_cr("Unable to link/verify VirtualMachineError class");
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46324
diff changeset
  1017
     return false; // initialization failed
37186
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
  1018
  }
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
  1019
  Universe::_virtual_machine_error_instance =
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
  1020
    InstanceKlass::cast(k)->allocate_instance(CHECK_false);
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7704
diff changeset
  1021
37186
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
  1022
  Universe::_vm_exception = InstanceKlass::cast(k)->allocate_instance(CHECK_false);
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7704
diff changeset
  1023
47548
664b9d44db74 8068314: "Java fields that are currently set during shared space dumping" comment is incorrect
jiangli
parents: 47216
diff changeset
  1024
  Handle msg = java_lang_String::create_from_str("Java heap space", CHECK_false);
664b9d44db74 8068314: "Java fields that are currently set during shared space dumping" comment is incorrect
jiangli
parents: 47216
diff changeset
  1025
  java_lang_Throwable::set_message(Universe::_out_of_memory_error_java_heap, msg());
664b9d44db74 8068314: "Java fields that are currently set during shared space dumping" comment is incorrect
jiangli
parents: 47216
diff changeset
  1026
664b9d44db74 8068314: "Java fields that are currently set during shared space dumping" comment is incorrect
jiangli
parents: 47216
diff changeset
  1027
  msg = java_lang_String::create_from_str("Metaspace", CHECK_false);
664b9d44db74 8068314: "Java fields that are currently set during shared space dumping" comment is incorrect
jiangli
parents: 47216
diff changeset
  1028
  java_lang_Throwable::set_message(Universe::_out_of_memory_error_metaspace, msg());
664b9d44db74 8068314: "Java fields that are currently set during shared space dumping" comment is incorrect
jiangli
parents: 47216
diff changeset
  1029
  msg = java_lang_String::create_from_str("Compressed class space", CHECK_false);
664b9d44db74 8068314: "Java fields that are currently set during shared space dumping" comment is incorrect
jiangli
parents: 47216
diff changeset
  1030
  java_lang_Throwable::set_message(Universe::_out_of_memory_error_class_metaspace, msg());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1031
47548
664b9d44db74 8068314: "Java fields that are currently set during shared space dumping" comment is incorrect
jiangli
parents: 47216
diff changeset
  1032
  msg = java_lang_String::create_from_str("Requested array size exceeds VM limit", CHECK_false);
664b9d44db74 8068314: "Java fields that are currently set during shared space dumping" comment is incorrect
jiangli
parents: 47216
diff changeset
  1033
  java_lang_Throwable::set_message(Universe::_out_of_memory_error_array_size, msg());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1034
47548
664b9d44db74 8068314: "Java fields that are currently set during shared space dumping" comment is incorrect
jiangli
parents: 47216
diff changeset
  1035
  msg = java_lang_String::create_from_str("GC overhead limit exceeded", CHECK_false);
664b9d44db74 8068314: "Java fields that are currently set during shared space dumping" comment is incorrect
jiangli
parents: 47216
diff changeset
  1036
  java_lang_Throwable::set_message(Universe::_out_of_memory_error_gc_overhead_limit, msg());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1037
47548
664b9d44db74 8068314: "Java fields that are currently set during shared space dumping" comment is incorrect
jiangli
parents: 47216
diff changeset
  1038
  msg = java_lang_String::create_from_str("Java heap space: failed reallocation of scalar replaced objects", CHECK_false);
664b9d44db74 8068314: "Java fields that are currently set during shared space dumping" comment is incorrect
jiangli
parents: 47216
diff changeset
  1039
  java_lang_Throwable::set_message(Universe::_out_of_memory_error_realloc_objects, msg());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1040
52033
d6aa9ea2405d 8208686: [AOT] JVMTI ResourceExhausted event repeated for same allocation
dnsimon
parents: 51959
diff changeset
  1041
  msg = java_lang_String::create_from_str("Java heap space: failed retryable allocation", CHECK_false);
d6aa9ea2405d 8208686: [AOT] JVMTI ResourceExhausted event repeated for same allocation
dnsimon
parents: 51959
diff changeset
  1042
  java_lang_Throwable::set_message(Universe::_out_of_memory_error_retry, msg());
d6aa9ea2405d 8208686: [AOT] JVMTI ResourceExhausted event repeated for same allocation
dnsimon
parents: 51959
diff changeset
  1043
47548
664b9d44db74 8068314: "Java fields that are currently set during shared space dumping" comment is incorrect
jiangli
parents: 47216
diff changeset
  1044
  msg = java_lang_String::create_from_str("/ by zero", CHECK_false);
664b9d44db74 8068314: "Java fields that are currently set during shared space dumping" comment is incorrect
jiangli
parents: 47216
diff changeset
  1045
  java_lang_Throwable::set_message(Universe::_arithmetic_exception_instance, msg());
28039
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27892
diff changeset
  1046
47548
664b9d44db74 8068314: "Java fields that are currently set during shared space dumping" comment is incorrect
jiangli
parents: 47216
diff changeset
  1047
  // Setup the array of errors that have preallocated backtrace
664b9d44db74 8068314: "Java fields that are currently set during shared space dumping" comment is incorrect
jiangli
parents: 47216
diff changeset
  1048
  k = Universe::_out_of_memory_error_java_heap->klass();
664b9d44db74 8068314: "Java fields that are currently set during shared space dumping" comment is incorrect
jiangli
parents: 47216
diff changeset
  1049
  assert(k->name() == vmSymbols::java_lang_OutOfMemoryError(), "should be out of memory error");
664b9d44db74 8068314: "Java fields that are currently set during shared space dumping" comment is incorrect
jiangli
parents: 47216
diff changeset
  1050
  ik = InstanceKlass::cast(k);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1051
47548
664b9d44db74 8068314: "Java fields that are currently set during shared space dumping" comment is incorrect
jiangli
parents: 47216
diff changeset
  1052
  int len = (StackTraceInThrowable) ? (int)PreallocatedOutOfMemoryErrorCount : 0;
664b9d44db74 8068314: "Java fields that are currently set during shared space dumping" comment is incorrect
jiangli
parents: 47216
diff changeset
  1053
  Universe::_preallocated_out_of_memory_error_array = oopFactory::new_objArray(ik, len, CHECK_false);
664b9d44db74 8068314: "Java fields that are currently set during shared space dumping" comment is incorrect
jiangli
parents: 47216
diff changeset
  1054
  for (int i=0; i<len; i++) {
664b9d44db74 8068314: "Java fields that are currently set during shared space dumping" comment is incorrect
jiangli
parents: 47216
diff changeset
  1055
    oop err = ik->allocate_instance(CHECK_false);
664b9d44db74 8068314: "Java fields that are currently set during shared space dumping" comment is incorrect
jiangli
parents: 47216
diff changeset
  1056
    Handle err_h = Handle(THREAD, err);
664b9d44db74 8068314: "Java fields that are currently set during shared space dumping" comment is incorrect
jiangli
parents: 47216
diff changeset
  1057
    java_lang_Throwable::allocate_backtrace(err_h, CHECK_false);
664b9d44db74 8068314: "Java fields that are currently set during shared space dumping" comment is incorrect
jiangli
parents: 47216
diff changeset
  1058
    Universe::preallocated_out_of_memory_errors()->obj_at_put(i, err_h());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1059
  }
47548
664b9d44db74 8068314: "Java fields that are currently set during shared space dumping" comment is incorrect
jiangli
parents: 47216
diff changeset
  1060
  Universe::_preallocated_out_of_memory_error_avail_count = (jint)len;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1061
37186
3975b781def9 8143269: Refactor code in universe_post_init that sets up methods to upcall
coleenp
parents: 37179
diff changeset
  1062
  Universe::initialize_known_methods(CHECK_false);
34280
72bfaaffee36 8143911: Reintegrate JEP 259: Stack-Walking API
mchung
parents: 34273
diff changeset
  1063
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1064
  // This needs to be done before the first scavenge/gc, since
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1065
  // it's an input to soft ref clearing policy.
1374
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 360
diff changeset
  1066
  {
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 360
diff changeset
  1067
    MutexLocker x(Heap_lock);
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 360
diff changeset
  1068
    Universe::update_heap_info_at_gc();
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 360
diff changeset
  1069
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1070
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1071
  // ("weak") refs processing infrastructure initialization
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1072
  Universe::heap()->post_initialize();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1073
18444
8adb4bc92f18 8013590: NPG: Add a memory pool MXBean for Metaspace
ehelin
parents: 18073
diff changeset
  1074
  MemoryService::add_metaspace_memory_pools();
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
  1075
30260
a7bfa4e20897 8077417: Cleanup of Universe::initialize_heap()
pliden
parents: 29800
diff changeset
  1076
  MemoryService::set_universe_heap(Universe::heap());
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25485
diff changeset
  1077
#if INCLUDE_CDS
50039
9fec54fe663d 8197954: Remove unnecessary intermediary APIs from AppCDS implementation
iklam
parents: 49982
diff changeset
  1078
  MetaspaceShared::post_initialize(CHECK_false);
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25485
diff changeset
  1079
#endif
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1080
  return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1081
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1082
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1083
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1084
void Universe::compute_base_vtable_size() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1085
  _base_vtable_size = ClassLoader::compute_Object_vtable();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1086
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1087
35061
be6025ebffea 8145092: Use Unified Logging for the GC logging
brutisso
parents: 34319
diff changeset
  1088
void Universe::print_on(outputStream* st) {
39401
318e93828de1 8155730: HeapInfoDCmd should get Heap_lock
ysuenaga
parents: 38259
diff changeset
  1089
  GCMutexLocker hl(Heap_lock); // Heap_lock might be locked by caller thread.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1090
  st->print_cr("Heap");
35061
be6025ebffea 8145092: Use Unified Logging for the GC logging
brutisso
parents: 34319
diff changeset
  1091
  heap()->print_on(st);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1092
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1093
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1094
void Universe::print_heap_at_SIGBREAK() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1095
  if (PrintHeapAtSIGBREAK) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1096
    print_on(tty);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1097
    tty->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1098
    tty->flush();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1099
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1100
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1101
35061
be6025ebffea 8145092: Use Unified Logging for the GC logging
brutisso
parents: 34319
diff changeset
  1102
void Universe::print_heap_before_gc() {
46701
f559541c0daa 8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents: 46689
diff changeset
  1103
  LogTarget(Debug, gc, heap) lt;
f559541c0daa 8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents: 46689
diff changeset
  1104
  if (lt.is_enabled()) {
f559541c0daa 8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents: 46689
diff changeset
  1105
    LogStream ls(lt);
f559541c0daa 8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents: 46689
diff changeset
  1106
    ls.print("Heap before GC invocations=%u (full %u):", heap()->total_collections(), heap()->total_full_collections());
35061
be6025ebffea 8145092: Use Unified Logging for the GC logging
brutisso
parents: 34319
diff changeset
  1107
    ResourceMark rm;
46701
f559541c0daa 8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents: 46689
diff changeset
  1108
    heap()->print_on(&ls);
10997
0be4b3be7197 7099849: G1: include heap region information in hs_err files
tonyp
parents: 10746
diff changeset
  1109
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1110
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1111
35061
be6025ebffea 8145092: Use Unified Logging for the GC logging
brutisso
parents: 34319
diff changeset
  1112
void Universe::print_heap_after_gc() {
46701
f559541c0daa 8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents: 46689
diff changeset
  1113
  LogTarget(Debug, gc, heap) lt;
f559541c0daa 8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents: 46689
diff changeset
  1114
  if (lt.is_enabled()) {
f559541c0daa 8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents: 46689
diff changeset
  1115
    LogStream ls(lt);
f559541c0daa 8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents: 46689
diff changeset
  1116
    ls.print("Heap after GC invocations=%u (full %u):", heap()->total_collections(), heap()->total_full_collections());
35061
be6025ebffea 8145092: Use Unified Logging for the GC logging
brutisso
parents: 34319
diff changeset
  1117
    ResourceMark rm;
46701
f559541c0daa 8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents: 46689
diff changeset
  1118
    heap()->print_on(&ls);
10997
0be4b3be7197 7099849: G1: include heap region information in hs_err files
tonyp
parents: 10746
diff changeset
  1119
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1120
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1121
35509
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1122
void Universe::initialize_verify_flags() {
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1123
  verify_flags = 0;
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1124
  const char delimiter[] = " ,";
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1125
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1126
  size_t length = strlen(VerifySubSet);
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1127
  char* subset_list = NEW_C_HEAP_ARRAY(char, length + 1, mtInternal);
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1128
  strncpy(subset_list, VerifySubSet, length + 1);
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1129
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1130
  char* token = strtok(subset_list, delimiter);
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1131
  while (token != NULL) {
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1132
    if (strcmp(token, "threads") == 0) {
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1133
      verify_flags |= Verify_Threads;
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1134
    } else if (strcmp(token, "heap") == 0) {
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1135
      verify_flags |= Verify_Heap;
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1136
    } else if (strcmp(token, "symbol_table") == 0) {
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1137
      verify_flags |= Verify_SymbolTable;
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1138
    } else if (strcmp(token, "string_table") == 0) {
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1139
      verify_flags |= Verify_StringTable;
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1140
    } else if (strcmp(token, "codecache") == 0) {
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1141
      verify_flags |= Verify_CodeCache;
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1142
    } else if (strcmp(token, "dictionary") == 0) {
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1143
      verify_flags |= Verify_SystemDictionary;
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1144
    } else if (strcmp(token, "classloader_data_graph") == 0) {
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1145
      verify_flags |= Verify_ClassLoaderDataGraph;
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1146
    } else if (strcmp(token, "metaspace") == 0) {
49389
9ef2eee8ca7c 8199430: Rename MetaspaceAux to something more meaningful
stuefe
parents: 49359
diff changeset
  1147
      verify_flags |= Verify_MetaspaceUtils;
35509
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1148
    } else if (strcmp(token, "jni_handles") == 0) {
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1149
      verify_flags |= Verify_JNIHandles;
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1150
    } else if (strcmp(token, "codecache_oops") == 0) {
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1151
      verify_flags |= Verify_CodeCacheOops;
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1152
    } else {
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1153
      vm_exit_during_initialization(err_msg("VerifySubSet: \'%s\' memory sub-system is unknown, please correct it", token));
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1154
    }
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1155
    token = strtok(NULL, delimiter);
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1156
  }
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1157
  FREE_C_HEAP_ARRAY(char, subset_list);
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1158
}
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1159
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1160
bool Universe::should_verify_subset(uint subset) {
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1161
  if (verify_flags & subset) {
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1162
    return true;
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1163
  }
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1164
  return false;
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1165
}
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1166
35061
be6025ebffea 8145092: Use Unified Logging for the GC logging
brutisso
parents: 34319
diff changeset
  1167
void Universe::verify(VerifyOption option, const char* prefix) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1168
  // The use of _verify_in_progress is a temporary work around for
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1169
  // 6320749.  Don't bother with a creating a class to set and clear
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1170
  // it since it is only used in this method and the control flow is
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1171
  // straight forward.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1172
  _verify_in_progress = true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1173
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1174
  COMPILER2_PRESENT(
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1175
    assert(!DerivedPointerTable::is_active(),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1176
         "DPT should not be active during verification "
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1177
         "(of thread stacks below)");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1178
  )
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1179
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1180
  ResourceMark rm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1181
  HandleMark hm;  // Handles created during verification can be zapped
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1182
  _verify_count++;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1183
35061
be6025ebffea 8145092: Use Unified Logging for the GC logging
brutisso
parents: 34319
diff changeset
  1184
  FormatBuffer<> title("Verifying %s", prefix);
be6025ebffea 8145092: Use Unified Logging for the GC logging
brutisso
parents: 34319
diff changeset
  1185
  GCTraceTime(Info, gc, verify) tm(title.buffer());
35509
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1186
  if (should_verify_subset(Verify_Threads)) {
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1187
    log_debug(gc, verify)("Threads");
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1188
    Threads::verify();
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1189
  }
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1190
  if (should_verify_subset(Verify_Heap)) {
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1191
    log_debug(gc, verify)("Heap");
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1192
    heap()->verify(option);
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1193
  }
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1194
  if (should_verify_subset(Verify_SymbolTable)) {
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1195
    log_debug(gc, verify)("SymbolTable");
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1196
    SymbolTable::verify();
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1197
  }
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1198
  if (should_verify_subset(Verify_StringTable)) {
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1199
    log_debug(gc, verify)("StringTable");
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1200
    StringTable::verify();
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1201
  }
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1202
  if (should_verify_subset(Verify_CodeCache)) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1203
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1204
    MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
35061
be6025ebffea 8145092: Use Unified Logging for the GC logging
brutisso
parents: 34319
diff changeset
  1205
    log_debug(gc, verify)("CodeCache");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1206
    CodeCache::verify();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1207
  }
35509
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1208
  }
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1209
  if (should_verify_subset(Verify_SystemDictionary)) {
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1210
    log_debug(gc, verify)("SystemDictionary");
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1211
    SystemDictionary::verify();
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1212
  }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
  1213
#ifndef PRODUCT
35509
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1214
  if (should_verify_subset(Verify_ClassLoaderDataGraph)) {
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1215
    log_debug(gc, verify)("ClassLoaderDataGraph");
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1216
    ClassLoaderDataGraph::verify();
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1217
  }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
  1218
#endif
49389
9ef2eee8ca7c 8199430: Rename MetaspaceAux to something more meaningful
stuefe
parents: 49359
diff changeset
  1219
  if (should_verify_subset(Verify_MetaspaceUtils)) {
9ef2eee8ca7c 8199430: Rename MetaspaceAux to something more meaningful
stuefe
parents: 49359
diff changeset
  1220
    log_debug(gc, verify)("MetaspaceUtils");
9ef2eee8ca7c 8199430: Rename MetaspaceAux to something more meaningful
stuefe
parents: 49359
diff changeset
  1221
    MetaspaceUtils::verify_free_chunks();
35509
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1222
  }
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1223
  if (should_verify_subset(Verify_JNIHandles)) {
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1224
    log_debug(gc, verify)("JNIHandles");
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1225
    JNIHandles::verify();
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1226
  }
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1227
  if (should_verify_subset(Verify_CodeCacheOops)) {
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1228
    log_debug(gc, verify)("CodeCache Oops");
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1229
    CodeCache::verify_oops();
15f2d488eeee 8072725: Provide more granular levels for GC verification
poonam
parents: 35071
diff changeset
  1230
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1231
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1232
  _verify_in_progress = false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1233
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1234
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1235
16670
4af09aff4237 8003310: Enable -Wunused-function when compiling with gcc
mikael
parents: 16453
diff changeset
  1236
#ifndef PRODUCT
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 32376
diff changeset
  1237
void Universe::calculate_verify_data(HeapWord* low_boundary, HeapWord* high_boundary) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1238
  assert(low_boundary < high_boundary, "bad interval");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1239
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1240
  // decide which low-order bits we require to be clear:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1241
  size_t alignSize = MinObjAlignmentInBytes;
5694
1e0532a6abff 6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents: 5420
diff changeset
  1242
  size_t min_object_size = CollectedHeap::min_fill_size();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1243
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1244
  // make an inclusive limit:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1245
  uintptr_t max = (uintptr_t)high_boundary - min_object_size*wordSize;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1246
  uintptr_t min = (uintptr_t)low_boundary;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1247
  assert(min < max, "bad interval");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1248
  uintptr_t diff = max ^ min;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1249
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1250
  // throw away enough low-order bits to make the diff vanish
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1251
  uintptr_t mask = (uintptr_t)(-1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1252
  while ((mask & diff) != 0)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1253
    mask <<= 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1254
  uintptr_t bits = (min & mask);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1255
  assert(bits == (max & mask), "correct mask");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1256
  // check an intermediate value between min and max, just to make sure:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1257
  assert(bits == ((min + (max-min)/2) & mask), "correct mask");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1258
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1259
  // require address alignment, too:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1260
  mask |= (alignSize - 1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1261
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 32376
diff changeset
  1262
  if (!(_verify_oop_mask == 0 && _verify_oop_bits == (uintptr_t)-1)) {
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 32376
diff changeset
  1263
    assert(_verify_oop_mask == mask && _verify_oop_bits == bits, "mask stability");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1264
  }
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 32376
diff changeset
  1265
  _verify_oop_mask = mask;
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 32376
diff changeset
  1266
  _verify_oop_bits = bits;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1267
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1268
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1269
// Oop verification (see MacroAssembler::verify_oop)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1270
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1271
uintptr_t Universe::verify_oop_mask() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1272
  MemRegion m = heap()->reserved_region();
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 32376
diff changeset
  1273
  calculate_verify_data(m.start(), m.end());
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 32376
diff changeset
  1274
  return _verify_oop_mask;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1275
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1276
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1277
uintptr_t Universe::verify_oop_bits() {
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 32376
diff changeset
  1278
  MemRegion m = heap()->reserved_region();
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 32376
diff changeset
  1279
  calculate_verify_data(m.start(), m.end());
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 32376
diff changeset
  1280
  return _verify_oop_bits;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1281
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1282
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1283
uintptr_t Universe::verify_mark_mask() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1284
  return markOopDesc::lock_mask_in_place;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1285
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1286
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1287
uintptr_t Universe::verify_mark_bits() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1288
  intptr_t mask = verify_mark_mask();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1289
  intptr_t bits = (intptr_t)markOopDesc::prototype();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1290
  assert((bits & ~mask) == 0, "no stray header bits");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1291
  return bits;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1292
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1293
#endif // PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1294
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1295
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1296
void Universe::compute_verify_oop_data() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1297
  verify_oop_mask();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1298
  verify_oop_bits();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1299
  verify_mark_mask();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1300
  verify_mark_bits();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1301
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1302
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1303
19278
c4355bebb414 8009728: nsk/jvmti/AttachOnDemand/attach030 crashes on Win32
coleenp
parents: 18687
diff changeset
  1304
void LatestMethodCache::init(Klass* k, Method* m) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1305
  if (!UseSharedSpaces) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1306
    _klass = k;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1307
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1308
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1309
  else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1310
    // sharing initilization should have already set up _klass
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1311
    assert(_klass != NULL, "just checking");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1312
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1313
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1314
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1315
  _method_idnum = m->method_idnum();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1316
  assert(_method_idnum >= 0, "sanity check");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1317
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1318
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1319
19278
c4355bebb414 8009728: nsk/jvmti/AttachOnDemand/attach030 crashes on Win32
coleenp
parents: 18687
diff changeset
  1320
Method* LatestMethodCache::get_method() {
18056
0e99ee964114 8001330: Improve on checking order
mullan
parents: 16672
diff changeset
  1321
  if (klass() == NULL) return NULL;
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
  1322
  InstanceKlass* ik = InstanceKlass::cast(klass());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
  1323
  Method* m = ik->method_with_idnum(method_idnum());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1324
  assert(m != NULL, "sanity check");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1325
  return m;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1326
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1327
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1328
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1329
#ifdef ASSERT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1330
// Release dummy object(s) at bottom of heap
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1331
bool Universe::release_fullgc_alot_dummy() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1332
  MutexLocker ml(FullGCALot_lock);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1333
  if (_fullgc_alot_dummy_array != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1334
    if (_fullgc_alot_dummy_next >= _fullgc_alot_dummy_array->length()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1335
      // No more dummies to release, release entire array instead
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1336
      _fullgc_alot_dummy_array = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1337
      return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1338
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1339
    if (!UseConcMarkSweepGC) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1340
      // Release dummy at bottom of old generation
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1341
      _fullgc_alot_dummy_array->obj_at_put(_fullgc_alot_dummy_next++, NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1342
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1343
    // Release dummy at bottom of permanent generation
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1344
    _fullgc_alot_dummy_array->obj_at_put(_fullgc_alot_dummy_next++, NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1345
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1346
  return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1347
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1348
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1349
#endif // ASSERT