author | iklam |
Tue, 22 Oct 2013 14:29:02 -0700 | |
changeset 21079 | 7028d0cb9b49 |
parent 20391 | 7b146c5ebb18 |
child 21768 | b7dba4cde1c6 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 1997, 2013, 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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#ifndef SHARE_VM_OOPS_INSTANCEKLASS_HPP |
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#define SHARE_VM_OOPS_INSTANCEKLASS_HPP |
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#include "classfile/classLoaderData.hpp" |
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#include "memory/referenceType.hpp" |
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#include "oops/annotations.hpp" |
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#include "oops/constMethod.hpp" |
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#include "oops/fieldInfo.hpp" |
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#include "oops/instanceOop.hpp" |
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#include "oops/klassVtable.hpp" |
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#include "runtime/atomic.hpp" |
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#include "runtime/handles.hpp" |
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#include "runtime/os.hpp" |
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#include "utilities/accessFlags.hpp" |
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#include "utilities/bitMap.inline.hpp" |
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#include "utilities/macros.hpp" |
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#include "trace/traceMacros.hpp" |
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// An InstanceKlass is the VM level representation of a Java class. |
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// It contains all information needed for at class at execution runtime. |
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// InstanceKlass layout: |
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// [C++ vtbl pointer ] Klass |
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// [subtype cache ] Klass |
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// [instance size ] Klass |
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// [java mirror ] Klass |
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// [super ] Klass |
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// [access_flags ] Klass |
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// [name ] Klass |
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// [first subklass ] Klass |
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// [next sibling ] Klass |
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// [array klasses ] |
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// [methods ] |
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// [local interfaces ] |
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// [transitive interfaces ] |
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// [fields ] |
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// [constants ] |
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// [class loader ] |
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// [source file name ] |
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// [inner classes ] |
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// [static field size ] |
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// [nonstatic field size ] |
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// [static oop fields size ] |
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// [nonstatic oop maps size ] |
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// [has finalize method ] |
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// [deoptimization mark bit ] |
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// [initialization state ] |
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// [initializing thread ] |
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// [Java vtable length ] |
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// [oop map cache (stack maps) ] |
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// [EMBEDDED Java vtable ] size in words = vtable_len |
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// [EMBEDDED nonstatic oop-map blocks] size in words = nonstatic_oop_map_size |
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// The embedded nonstatic oop-map blocks are short pairs (offset, length) |
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// indicating where oops are located in instances of this klass. |
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// [EMBEDDED implementor of the interface] only exist for interface |
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// [EMBEDDED host klass ] only exist for an anonymous class (JSR 292 enabled) |
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// forward declaration for class -- see below for definition |
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class SuperTypeClosure; |
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class JNIid; |
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class jniIdMapBase; |
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class BreakpointInfo; |
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class fieldDescriptor; |
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class DepChange; |
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class nmethodBucket; |
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class PreviousVersionNode; |
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class JvmtiCachedClassFieldMap; |
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class MemberNameTable; |
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// This is used in iterators below. |
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class FieldClosure: public StackObj { |
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public: |
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virtual void do_field(fieldDescriptor* fd) = 0; |
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}; |
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#ifndef PRODUCT |
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// Print fields. |
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// If "obj" argument to constructor is NULL, prints static fields, otherwise prints non-static fields. |
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class FieldPrinter: public FieldClosure { |
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oop _obj; |
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outputStream* _st; |
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public: |
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FieldPrinter(outputStream* st, oop obj = NULL) : _obj(obj), _st(st) {} |
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void do_field(fieldDescriptor* fd); |
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}; |
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#endif // !PRODUCT |
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// ValueObjs embedded in klass. Describes where oops are located in instances of |
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// this klass. |
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class OopMapBlock VALUE_OBJ_CLASS_SPEC { |
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public: |
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// Byte offset of the first oop mapped by this block. |
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int offset() const { return _offset; } |
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void set_offset(int offset) { _offset = offset; } |
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// Number of oops in this block. |
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uint count() const { return _count; } |
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void set_count(uint count) { _count = count; } |
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// sizeof(OopMapBlock) in HeapWords. |
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static const int size_in_words() { |
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return align_size_up(int(sizeof(OopMapBlock)), HeapWordSize) >> |
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LogHeapWordSize; |
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} |
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private: |
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int _offset; |
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uint _count; |
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}; |
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struct JvmtiCachedClassFileData; |
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class InstanceKlass: public Klass { |
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friend class VMStructs; |
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friend class ClassFileParser; |
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friend class CompileReplay; |
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protected: |
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// Constructor |
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InstanceKlass(int vtable_len, |
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int itable_len, |
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int static_field_size, |
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int nonstatic_oop_map_size, |
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ReferenceType rt, |
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AccessFlags access_flags, |
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bool is_anonymous); |
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public: |
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static InstanceKlass* allocate_instance_klass( |
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ClassLoaderData* loader_data, |
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int vtable_len, |
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int itable_len, |
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int static_field_size, |
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int nonstatic_oop_map_size, |
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ReferenceType rt, |
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AccessFlags access_flags, |
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Symbol* name, |
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Klass* super_klass, |
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bool is_anonymous, |
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TRAPS); |
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InstanceKlass() { assert(DumpSharedSpaces || UseSharedSpaces, "only for CDS"); } |
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// See "The Java Virtual Machine Specification" section 2.16.2-5 for a detailed description |
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// of the class loading & initialization procedure, and the use of the states. |
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enum ClassState { |
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allocated, // allocated (but not yet linked) |
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loaded, // loaded and inserted in class hierarchy (but not linked yet) |
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linked, // successfully linked/verified (but not initialized yet) |
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being_initialized, // currently running class initializer |
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fully_initialized, // initialized (successfull final state) |
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initialization_error // error happened during initialization |
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}; |
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static int number_of_instance_classes() { return _total_instanceKlass_count; } |
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private: |
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static volatile int _total_instanceKlass_count; |
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protected: |
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// Annotations for this class |
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Annotations* _annotations; |
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// Array classes holding elements of this class. |
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Klass* _array_klasses; |
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// Constant pool for this class. |
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ConstantPool* _constants; |
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// The InnerClasses attribute and EnclosingMethod attribute. The |
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// _inner_classes is an array of shorts. If the class has InnerClasses |
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// attribute, then the _inner_classes array begins with 4-tuples of shorts |
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// [inner_class_info_index, outer_class_info_index, |
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// inner_name_index, inner_class_access_flags] for the InnerClasses |
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// attribute. If the EnclosingMethod attribute exists, it occupies the |
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// last two shorts [class_index, method_index] of the array. If only |
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// the InnerClasses attribute exists, the _inner_classes array length is |
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// number_of_inner_classes * 4. If the class has both InnerClasses |
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// and EnclosingMethod attributes the _inner_classes array length is |
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// number_of_inner_classes * 4 + enclosing_method_attribute_size. |
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Array<jushort>* _inner_classes; |
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// the source debug extension for this klass, NULL if not specified. |
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// Specified as UTF-8 string without terminating zero byte in the classfile, |
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// it is stored in the instanceklass as a NULL-terminated UTF-8 string |
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char* _source_debug_extension; |
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// Array name derived from this class which needs unreferencing |
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// if this class is unloaded. |
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Symbol* _array_name; |
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// Number of heapOopSize words used by non-static fields in this klass |
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// (including inherited fields but after header_size()). |
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int _nonstatic_field_size; |
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int _static_field_size; // number words used by static fields (oop and non-oop) in this klass |
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// Constant pool index to the utf8 entry of the Generic signature, |
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// or 0 if none. |
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u2 _generic_signature_index; |
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// Constant pool index to the utf8 entry for the name of source file |
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// containing this klass, 0 if not specified. |
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u2 _source_file_name_index; |
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u2 _static_oop_field_count;// number of static oop fields in this klass |
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u2 _java_fields_count; // The number of declared Java fields |
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int _nonstatic_oop_map_size;// size in words of nonstatic oop map blocks |
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|
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// _is_marked_dependent can be set concurrently, thus cannot be part of the |
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// _misc_flags. |
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bool _is_marked_dependent; // used for marking during flushing and deoptimization |
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|
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enum { |
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_misc_rewritten = 1 << 0, // methods rewritten. |
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_misc_has_nonstatic_fields = 1 << 1, // for sizing with UseCompressedOops |
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_misc_should_verify_class = 1 << 2, // allow caching of preverification |
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_misc_is_anonymous = 1 << 3, // has embedded _host_klass field |
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_misc_is_contended = 1 << 4, // marked with contended annotation |
236 |
_misc_has_default_methods = 1 << 5 // class/superclass/implemented interfaces has default methods |
|
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}; |
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u2 _misc_flags; |
1 | 239 |
u2 _minor_version; // minor version number of class file |
240 |
u2 _major_version; // major version number of class file |
|
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Thread* _init_thread; // Pointer to current thread doing initialization (to handle recusive initialization) |
|
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int _vtable_len; // length of Java vtable (in words) |
|
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int _itable_len; // length of Java itable (in words) |
|
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OopMapCache* volatile _oop_map_cache; // OopMapCache for all methods in the klass (allocated lazily) |
|
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MemberNameTable* _member_names; // Member names |
1 | 246 |
JNIid* _jni_ids; // First JNI identifier for static fields in this class |
247 |
jmethodID* _methods_jmethod_ids; // jmethodIDs corresponding to method_idnum, or NULL if none |
|
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nmethodBucket* _dependencies; // list of dependent nmethods |
|
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nmethod* _osr_nmethods_head; // Head of list of on-stack replacement nmethods for this class |
|
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BreakpointInfo* _breakpoints; // bpt lists, managed by Method* |
1 | 251 |
// Array of interesting part(s) of the previous version(s) of this |
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// InstanceKlass. See PreviousVersionWalker below. |
1 | 253 |
GrowableArray<PreviousVersionNode *>* _previous_versions; |
254 |
// JVMTI fields can be moved to their own structure - see 6315920 |
|
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// JVMTI: cached class file, before retransformable agent modified it in CFLH |
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JvmtiCachedClassFileData* _cached_class_file; |
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|
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volatile u2 _idnum_allocated_count; // JNI/JVMTI: increments with the addition of methods, old ids don't change |
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|
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// Class states are defined as ClassState (see above). |
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// Place the _init_state here to utilize the unused 2-byte after |
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// _idnum_allocated_count. |
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u1 _init_state; // state of class |
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u1 _reference_type; // reference type |
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|
1 | 266 |
JvmtiCachedClassFieldMap* _jvmti_cached_class_field_map; // JVMTI: used during heap iteration |
14385 | 267 |
|
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NOT_PRODUCT(int _verify_count;) // to avoid redundant verifies |
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|
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// Method array. |
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Array<Method*>* _methods; |
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// Default Method Array, concrete methods inherited from interfaces |
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Array<Method*>* _default_methods; |
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// Interface (Klass*s) this class declares locally to implement. |
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Array<Klass*>* _local_interfaces; |
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// Interface (Klass*s) this class implements transitively. |
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Array<Klass*>* _transitive_interfaces; |
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// Int array containing the original order of method in the class file (for JVMTI). |
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Array<int>* _method_ordering; |
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// Int array containing the vtable_indices for default_methods |
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// offset matches _default_methods offset |
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Array<int>* _default_vtable_indices; |
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|
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// Instance and static variable information, starts with 6-tuples of shorts |
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// [access, name index, sig index, initval index, low_offset, high_offset] |
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// for all fields, followed by the generic signature data at the end of |
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// the array. Only fields with generic signature attributes have the generic |
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// signature data set in the array. The fields array looks like following: |
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// |
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// f1: [access, name index, sig index, initial value index, low_offset, high_offset] |
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// f2: [access, name index, sig index, initial value index, low_offset, high_offset] |
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// ... |
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// fn: [access, name index, sig index, initial value index, low_offset, high_offset] |
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// [generic signature index] |
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// [generic signature index] |
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// ... |
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Array<u2>* _fields; |
1 | 298 |
|
299 |
// embedded Java vtable follows here |
|
300 |
// embedded Java itables follows here |
|
301 |
// embedded static fields follows here |
|
302 |
// embedded nonstatic oop-map blocks follows here |
|
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// embedded implementor of this interface follows here |
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// The embedded implementor only exists if the current klass is an |
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// iterface. The possible values of the implementor fall into following |
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// three cases: |
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// NULL: no implementor. |
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// A Klass* that's not itself: one implementor. |
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// Itsef: more than one implementors. |
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// embedded host klass follows here |
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// The embedded host klass only exists in an anonymous class for |
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// dynamic language support (JSR 292 enabled). The host class grants |
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// its access privileges to this class also. The host class is either |
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// named, or a previously loaded anonymous class. A non-anonymous class |
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// or an anonymous class loaded through normal classloading does not |
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// have this embedded field. |
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// |
1 | 318 |
|
319 |
friend class SystemDictionary; |
|
320 |
||
321 |
public: |
|
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bool has_nonstatic_fields() const { |
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return (_misc_flags & _misc_has_nonstatic_fields) != 0; |
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} |
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void set_has_nonstatic_fields(bool b) { |
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if (b) { |
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_misc_flags |= _misc_has_nonstatic_fields; |
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} else { |
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_misc_flags &= ~_misc_has_nonstatic_fields; |
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} |
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331 |
} |
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332 |
|
1 | 333 |
// field sizes |
334 |
int nonstatic_field_size() const { return _nonstatic_field_size; } |
|
335 |
void set_nonstatic_field_size(int size) { _nonstatic_field_size = size; } |
|
336 |
||
337 |
int static_field_size() const { return _static_field_size; } |
|
338 |
void set_static_field_size(int size) { _static_field_size = size; } |
|
339 |
||
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int static_oop_field_count() const { return (int)_static_oop_field_count; } |
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void set_static_oop_field_count(u2 size) { _static_oop_field_count = size; } |
1 | 342 |
|
343 |
// Java vtable |
|
344 |
int vtable_length() const { return _vtable_len; } |
|
345 |
void set_vtable_length(int len) { _vtable_len = len; } |
|
346 |
||
347 |
// Java itable |
|
348 |
int itable_length() const { return _itable_len; } |
|
349 |
void set_itable_length(int len) { _itable_len = len; } |
|
350 |
||
351 |
// array klasses |
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Klass* array_klasses() const { return _array_klasses; } |
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353 |
void set_array_klasses(Klass* k) { _array_klasses = k; } |
1 | 354 |
|
355 |
// methods |
|
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356 |
Array<Method*>* methods() const { return _methods; } |
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|
357 |
void set_methods(Array<Method*>* a) { _methods = a; } |
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|
358 |
Method* method_with_idnum(int idnum); |
1 | 359 |
|
360 |
// method ordering |
|
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|
361 |
Array<int>* method_ordering() const { return _method_ordering; } |
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|
362 |
void set_method_ordering(Array<int>* m) { _method_ordering = m; } |
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|
363 |
void copy_method_ordering(intArray* m, TRAPS); |
1 | 364 |
|
20391
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|
365 |
// default_methods |
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|
366 |
Array<Method*>* default_methods() const { return _default_methods; } |
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|
367 |
void set_default_methods(Array<Method*>* a) { _default_methods = a; } |
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|
368 |
|
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|
369 |
// default method vtable_indices |
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|
370 |
Array<int>* default_vtable_indices() const { return _default_vtable_indices; } |
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|
371 |
void set_default_vtable_indices(Array<int>* v) { _default_vtable_indices = v; } |
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|
372 |
Array<int>* create_new_default_vtable_indices(int len, TRAPS); |
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|
373 |
|
1 | 374 |
// interfaces |
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|
375 |
Array<Klass*>* local_interfaces() const { return _local_interfaces; } |
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|
376 |
void set_local_interfaces(Array<Klass*>* a) { |
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guarantee(_local_interfaces == NULL || a == NULL, "Just checking"); |
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|
378 |
_local_interfaces = a; } |
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|
379 |
|
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|
380 |
Array<Klass*>* transitive_interfaces() const { return _transitive_interfaces; } |
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|
381 |
void set_transitive_interfaces(Array<Klass*>* a) { |
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|
382 |
guarantee(_transitive_interfaces == NULL || a == NULL, "Just checking"); |
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383 |
_transitive_interfaces = a; |
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|
384 |
} |
1 | 385 |
|
10546 | 386 |
private: |
387 |
friend class fieldDescriptor; |
|
388 |
FieldInfo* field(int index) const { return FieldInfo::from_field_array(_fields, index); } |
|
389 |
||
390 |
public: |
|
391 |
int field_offset (int index) const { return field(index)->offset(); } |
|
392 |
int field_access_flags(int index) const { return field(index)->access_flags(); } |
|
393 |
Symbol* field_name (int index) const { return field(index)->name(constants()); } |
|
394 |
Symbol* field_signature (int index) const { return field(index)->signature(constants()); } |
|
395 |
||
396 |
// Number of Java declared fields |
|
11412
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|
397 |
int java_fields_count() const { return (int)_java_fields_count; } |
10546 | 398 |
|
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|
399 |
Array<u2>* fields() const { return _fields; } |
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|
400 |
void set_fields(Array<u2>* f, u2 java_fields_count) { |
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|
401 |
guarantee(_fields == NULL || f == NULL, "Just checking"); |
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|
402 |
_fields = f; |
10546 | 403 |
_java_fields_count = java_fields_count; |
1 | 404 |
} |
405 |
||
406 |
// inner classes |
|
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|
407 |
Array<u2>* inner_classes() const { return _inner_classes; } |
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|
408 |
void set_inner_classes(Array<u2>* f) { _inner_classes = f; } |
1 | 409 |
|
410 |
enum InnerClassAttributeOffset { |
|
411 |
// From http://mirror.eng/products/jdk/1.1/docs/guide/innerclasses/spec/innerclasses.doc10.html#18814 |
|
412 |
inner_class_inner_class_info_offset = 0, |
|
413 |
inner_class_outer_class_info_offset = 1, |
|
414 |
inner_class_inner_name_offset = 2, |
|
415 |
inner_class_access_flags_offset = 3, |
|
416 |
inner_class_next_offset = 4 |
|
417 |
}; |
|
418 |
||
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changeset
|
419 |
enum EnclosingMethodAttributeOffset { |
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|
420 |
enclosing_method_class_index_offset = 0, |
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|
421 |
enclosing_method_method_index_offset = 1, |
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|
422 |
enclosing_method_attribute_size = 2 |
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|
423 |
}; |
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changeset
|
424 |
|
2264
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4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
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|
425 |
// method override check |
8076
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|
426 |
bool is_override(methodHandle super_method, Handle targetclassloader, Symbol* targetclassname, TRAPS); |
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|
427 |
|
1 | 428 |
// package |
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|
429 |
bool is_same_class_package(Klass* class2); |
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|
430 |
bool is_same_class_package(oop classloader2, Symbol* classname2); |
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|
431 |
static bool is_same_class_package(oop class_loader1, Symbol* class_name1, oop class_loader2, Symbol* class_name2); |
1 | 432 |
|
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|
433 |
// find an enclosing class (defined where original code was, in jvm.cpp!) |
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|
434 |
Klass* compute_enclosing_class(bool* inner_is_member, TRAPS) { |
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|
435 |
instanceKlassHandle self(THREAD, this); |
4496
c5a0b15a8e7d
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changeset
|
436 |
return compute_enclosing_class_impl(self, inner_is_member, THREAD); |
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|
437 |
} |
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|
438 |
static Klass* compute_enclosing_class_impl(instanceKlassHandle self, |
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|
439 |
bool* inner_is_member, TRAPS); |
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|
440 |
|
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|
441 |
// tell if two classes have the same enclosing class (at package level) |
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changeset
|
442 |
bool is_same_package_member(Klass* class2, TRAPS) { |
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changeset
|
443 |
instanceKlassHandle self(THREAD, this); |
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changeset
|
444 |
return is_same_package_member_impl(self, class2, THREAD); |
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jrose
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changeset
|
445 |
} |
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changeset
|
446 |
static bool is_same_package_member_impl(instanceKlassHandle self, |
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changeset
|
447 |
Klass* class2, TRAPS); |
2332
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changeset
|
448 |
|
1 | 449 |
// initialization state |
450 |
bool is_loaded() const { return _init_state >= loaded; } |
|
451 |
bool is_linked() const { return _init_state >= linked; } |
|
452 |
bool is_initialized() const { return _init_state == fully_initialized; } |
|
453 |
bool is_not_initialized() const { return _init_state < being_initialized; } |
|
454 |
bool is_being_initialized() const { return _init_state == being_initialized; } |
|
455 |
bool is_in_error_state() const { return _init_state == initialization_error; } |
|
456 |
bool is_reentrant_initialization(Thread *thread) { return thread == _init_thread; } |
|
11407
5399831730cd
7117052: instanceKlass::_init_state can be u1 type
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changeset
|
457 |
ClassState init_state() { return (ClassState)_init_state; } |
12587
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
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changeset
|
458 |
bool is_rewritten() const { return (_misc_flags & _misc_rewritten) != 0; } |
3820
0a8fbbe180db
6830542: Performance: JVM_DefineClass already verified.
acorn
parents:
2570
diff
changeset
|
459 |
|
0a8fbbe180db
6830542: Performance: JVM_DefineClass already verified.
acorn
parents:
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diff
changeset
|
460 |
// defineClass specified verification |
12587
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7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents:
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diff
changeset
|
461 |
bool should_verify_class() const { |
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
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diff
changeset
|
462 |
return (_misc_flags & _misc_should_verify_class) != 0; |
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents:
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diff
changeset
|
463 |
} |
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
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changeset
|
464 |
void set_should_verify_class(bool value) { |
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
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changeset
|
465 |
if (value) { |
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
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changeset
|
466 |
_misc_flags |= _misc_should_verify_class; |
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents:
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diff
changeset
|
467 |
} else { |
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents:
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diff
changeset
|
468 |
_misc_flags &= ~_misc_should_verify_class; |
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents:
12377
diff
changeset
|
469 |
} |
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents:
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diff
changeset
|
470 |
} |
1 | 471 |
|
472 |
// marking |
|
11440
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7129240: backout fix for 7102776 until 7128770 is resolved
dcubed
parents:
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diff
changeset
|
473 |
bool is_marked_dependent() const { return _is_marked_dependent; } |
dea12ec80745
7129240: backout fix for 7102776 until 7128770 is resolved
dcubed
parents:
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diff
changeset
|
474 |
void set_is_marked_dependent(bool value) { _is_marked_dependent = value; } |
1 | 475 |
|
476 |
// initialization (virtuals from Klass) |
|
477 |
bool should_be_initialized() const; // means that initialize should be called |
|
478 |
void initialize(TRAPS); |
|
479 |
void link_class(TRAPS); |
|
480 |
bool link_class_or_fail(TRAPS); // returns false on failure |
|
481 |
void unlink_class(); |
|
482 |
void rewrite_class(TRAPS); |
|
15099
b31d40895bbb
8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents:
15097
diff
changeset
|
483 |
void link_methods(TRAPS); |
13728
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changeset
|
484 |
Method* class_initializer(); |
1 | 485 |
|
486 |
// set the class to initialized if no static initializer is present |
|
487 |
void eager_initialize(Thread *thread); |
|
488 |
||
489 |
// reference type |
|
11729
77f7d412d0a1
7132690: InstanceKlass:_reference_type should be u1 type
jiangli
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diff
changeset
|
490 |
ReferenceType reference_type() const { return (ReferenceType)_reference_type; } |
77f7d412d0a1
7132690: InstanceKlass:_reference_type should be u1 type
jiangli
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diff
changeset
|
491 |
void set_reference_type(ReferenceType t) { |
77f7d412d0a1
7132690: InstanceKlass:_reference_type should be u1 type
jiangli
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diff
changeset
|
492 |
assert(t == (u1)t, "overflow"); |
77f7d412d0a1
7132690: InstanceKlass:_reference_type should be u1 type
jiangli
parents:
11440
diff
changeset
|
493 |
_reference_type = (u1)t; |
77f7d412d0a1
7132690: InstanceKlass:_reference_type should be u1 type
jiangli
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11440
diff
changeset
|
494 |
} |
1 | 495 |
|
13728
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diff
changeset
|
496 |
static ByteSize reference_type_offset() { return in_ByteSize(offset_of(InstanceKlass, _reference_type)); } |
9176
42d9d1010f38
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
8725
diff
changeset
|
497 |
|
1 | 498 |
// find local field, returns true if found |
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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7397
diff
changeset
|
499 |
bool find_local_field(Symbol* name, Symbol* sig, fieldDescriptor* fd) const; |
1 | 500 |
// find field in direct superinterfaces, returns the interface in which the field is defined |
13728
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coleenp
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diff
changeset
|
501 |
Klass* find_interface_field(Symbol* name, Symbol* sig, fieldDescriptor* fd) const; |
1 | 502 |
// find field according to JVM spec 5.4.3.2, returns the klass in which the field is defined |
13728
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6964458: Reimplement class meta-data storage to use native memory
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changeset
|
503 |
Klass* find_field(Symbol* name, Symbol* sig, fieldDescriptor* fd) const; |
1 | 504 |
// find instance or static fields according to JVM spec 5.4.3.2, returns the klass in which the field is defined |
13728
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6964458: Reimplement class meta-data storage to use native memory
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changeset
|
505 |
Klass* find_field(Symbol* name, Symbol* sig, bool is_static, fieldDescriptor* fd) const; |
1 | 506 |
|
507 |
// find a non-static or static field given its offset within the class. |
|
508 |
bool contains_field_offset(int offset) { |
|
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
222
diff
changeset
|
509 |
return instanceOopDesc::contains_field_offset(offset, nonstatic_field_size()); |
1 | 510 |
} |
511 |
||
512 |
bool find_local_field_from_offset(int offset, bool is_static, fieldDescriptor* fd) const; |
|
513 |
bool find_field_from_offset(int offset, bool is_static, fieldDescriptor* fd) const; |
|
514 |
||
515 |
// find a local method (returns NULL if not found) |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
516 |
Method* find_method(Symbol* name, Symbol* signature) const; |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
517 |
static Method* find_method(Array<Method*>* methods, Symbol* name, Symbol* signature); |
1 | 518 |
|
20391
7b146c5ebb18
8009130: Lambda: Fix access controls, loader constraints.
acorn
parents:
20379
diff
changeset
|
519 |
// find a local method index in default_methods (returns -1 if not found) |
7b146c5ebb18
8009130: Lambda: Fix access controls, loader constraints.
acorn
parents:
20379
diff
changeset
|
520 |
static int find_method_index(Array<Method*>* methods, Symbol* name, Symbol* signature); |
7b146c5ebb18
8009130: Lambda: Fix access controls, loader constraints.
acorn
parents:
20379
diff
changeset
|
521 |
|
1 | 522 |
// lookup operation (returns NULL if not found) |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
523 |
Method* uncached_lookup_method(Symbol* name, Symbol* signature) const; |
1 | 524 |
|
525 |
// lookup a method in all the interfaces that this class implements |
|
526 |
// (returns NULL if not found) |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
527 |
Method* lookup_method_in_all_interfaces(Symbol* name, Symbol* signature) const; |
20391
7b146c5ebb18
8009130: Lambda: Fix access controls, loader constraints.
acorn
parents:
20379
diff
changeset
|
528 |
// lookup a method in local defaults then in all interfaces |
7b146c5ebb18
8009130: Lambda: Fix access controls, loader constraints.
acorn
parents:
20379
diff
changeset
|
529 |
// (returns NULL if not found) |
7b146c5ebb18
8009130: Lambda: Fix access controls, loader constraints.
acorn
parents:
20379
diff
changeset
|
530 |
Method* lookup_method_in_ordered_interfaces(Symbol* name, Symbol* signature) const; |
1 | 531 |
|
14385 | 532 |
// Find method indices by name. If a method with the specified name is |
533 |
// found the index to the first method is returned, and 'end' is filled in |
|
534 |
// with the index of first non-name-matching method. If no method is found |
|
535 |
// -1 is returned. |
|
536 |
int find_method_by_name(Symbol* name, int* end); |
|
537 |
static int find_method_by_name(Array<Method*>* methods, Symbol* name, int* end); |
|
538 |
||
1 | 539 |
// constant pool |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
540 |
ConstantPool* constants() const { return _constants; } |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
541 |
void set_constants(ConstantPool* c) { _constants = c; } |
1 | 542 |
|
543 |
// protection domain |
|
17826
9ad5cd464a75
8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents:
17370
diff
changeset
|
544 |
oop protection_domain() const; |
9ad5cd464a75
8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents:
17370
diff
changeset
|
545 |
|
9ad5cd464a75
8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents:
17370
diff
changeset
|
546 |
// signers |
9ad5cd464a75
8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents:
17370
diff
changeset
|
547 |
objArrayOop signers() const; |
1 | 548 |
|
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
1388
diff
changeset
|
549 |
// host class |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
550 |
Klass* host_klass() const { |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
551 |
Klass** hk = (Klass**)adr_host_klass(); |
12587
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents:
12377
diff
changeset
|
552 |
if (hk == NULL) { |
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents:
12377
diff
changeset
|
553 |
return NULL; |
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents:
12377
diff
changeset
|
554 |
} else { |
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents:
12377
diff
changeset
|
555 |
return *hk; |
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents:
12377
diff
changeset
|
556 |
} |
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents:
12377
diff
changeset
|
557 |
} |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
558 |
void set_host_klass(Klass* host) { |
12587
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents:
12377
diff
changeset
|
559 |
assert(is_anonymous(), "not anonymous"); |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
560 |
Klass** addr = (Klass**)adr_host_klass(); |
12587
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents:
12377
diff
changeset
|
561 |
assert(addr != NULL, "no reversed space"); |
15873
5ce4f526e0ba
8008750: [partfait] Null pointer deference in hotspot/src/share/vm/oops/instanceKlass.hpp
morris
parents:
15601
diff
changeset
|
562 |
if (addr != NULL) { |
5ce4f526e0ba
8008750: [partfait] Null pointer deference in hotspot/src/share/vm/oops/instanceKlass.hpp
morris
parents:
15601
diff
changeset
|
563 |
*addr = host; |
5ce4f526e0ba
8008750: [partfait] Null pointer deference in hotspot/src/share/vm/oops/instanceKlass.hpp
morris
parents:
15601
diff
changeset
|
564 |
} |
12587
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents:
12377
diff
changeset
|
565 |
} |
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents:
12377
diff
changeset
|
566 |
bool is_anonymous() const { |
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents:
12377
diff
changeset
|
567 |
return (_misc_flags & _misc_is_anonymous) != 0; |
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents:
12377
diff
changeset
|
568 |
} |
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents:
12377
diff
changeset
|
569 |
void set_is_anonymous(bool value) { |
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents:
12377
diff
changeset
|
570 |
if (value) { |
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents:
12377
diff
changeset
|
571 |
_misc_flags |= _misc_is_anonymous; |
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents:
12377
diff
changeset
|
572 |
} else { |
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents:
12377
diff
changeset
|
573 |
_misc_flags &= ~_misc_is_anonymous; |
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents:
12377
diff
changeset
|
574 |
} |
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents:
12377
diff
changeset
|
575 |
} |
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
1388
diff
changeset
|
576 |
|
14816 | 577 |
// Oop that keeps the metadata for this class from being unloaded |
578 |
// in places where the metadata is stored in other places, like nmethods |
|
579 |
oop klass_holder() const { |
|
580 |
return is_anonymous() ? java_mirror() : class_loader(); |
|
581 |
} |
|
582 |
||
15193
8e6b5694267f
8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents:
15105
diff
changeset
|
583 |
bool is_contended() const { |
8e6b5694267f
8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents:
15105
diff
changeset
|
584 |
return (_misc_flags & _misc_is_contended) != 0; |
8e6b5694267f
8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents:
15105
diff
changeset
|
585 |
} |
8e6b5694267f
8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents:
15105
diff
changeset
|
586 |
void set_is_contended(bool value) { |
8e6b5694267f
8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents:
15105
diff
changeset
|
587 |
if (value) { |
8e6b5694267f
8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents:
15105
diff
changeset
|
588 |
_misc_flags |= _misc_is_contended; |
8e6b5694267f
8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents:
15105
diff
changeset
|
589 |
} else { |
8e6b5694267f
8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents:
15105
diff
changeset
|
590 |
_misc_flags &= ~_misc_is_contended; |
8e6b5694267f
8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents:
15105
diff
changeset
|
591 |
} |
8e6b5694267f
8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents:
15105
diff
changeset
|
592 |
} |
8e6b5694267f
8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents:
15105
diff
changeset
|
593 |
|
1 | 594 |
// source file name |
19326
14cb6cf26a96
8021948: Change InstanceKlass::_source_file_name and _generic_signature from Symbol* to constant pool indexes.
jiangli
parents:
18940
diff
changeset
|
595 |
Symbol* source_file_name() const { |
14cb6cf26a96
8021948: Change InstanceKlass::_source_file_name and _generic_signature from Symbol* to constant pool indexes.
jiangli
parents:
18940
diff
changeset
|
596 |
return (_source_file_name_index == 0) ? |
14cb6cf26a96
8021948: Change InstanceKlass::_source_file_name and _generic_signature from Symbol* to constant pool indexes.
jiangli
parents:
18940
diff
changeset
|
597 |
(Symbol*)NULL : _constants->symbol_at(_source_file_name_index); |
14cb6cf26a96
8021948: Change InstanceKlass::_source_file_name and _generic_signature from Symbol* to constant pool indexes.
jiangli
parents:
18940
diff
changeset
|
598 |
} |
14cb6cf26a96
8021948: Change InstanceKlass::_source_file_name and _generic_signature from Symbol* to constant pool indexes.
jiangli
parents:
18940
diff
changeset
|
599 |
u2 source_file_name_index() const { |
14cb6cf26a96
8021948: Change InstanceKlass::_source_file_name and _generic_signature from Symbol* to constant pool indexes.
jiangli
parents:
18940
diff
changeset
|
600 |
return _source_file_name_index; |
14cb6cf26a96
8021948: Change InstanceKlass::_source_file_name and _generic_signature from Symbol* to constant pool indexes.
jiangli
parents:
18940
diff
changeset
|
601 |
} |
14cb6cf26a96
8021948: Change InstanceKlass::_source_file_name and _generic_signature from Symbol* to constant pool indexes.
jiangli
parents:
18940
diff
changeset
|
602 |
void set_source_file_name_index(u2 sourcefile_index) { |
14cb6cf26a96
8021948: Change InstanceKlass::_source_file_name and _generic_signature from Symbol* to constant pool indexes.
jiangli
parents:
18940
diff
changeset
|
603 |
_source_file_name_index = sourcefile_index; |
14cb6cf26a96
8021948: Change InstanceKlass::_source_file_name and _generic_signature from Symbol* to constant pool indexes.
jiangli
parents:
18940
diff
changeset
|
604 |
} |
1 | 605 |
|
606 |
// minor and major version numbers of class file |
|
607 |
u2 minor_version() const { return _minor_version; } |
|
608 |
void set_minor_version(u2 minor_version) { _minor_version = minor_version; } |
|
609 |
u2 major_version() const { return _major_version; } |
|
610 |
void set_major_version(u2 major_version) { _major_version = major_version; } |
|
611 |
||
612 |
// source debug extension |
|
13201
69f157caabcc
6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents:
13195
diff
changeset
|
613 |
char* source_debug_extension() const { return _source_debug_extension; } |
69f157caabcc
6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents:
13195
diff
changeset
|
614 |
void set_source_debug_extension(char* array, int length); |
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7397
diff
changeset
|
615 |
|
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7397
diff
changeset
|
616 |
// symbol unloading support (refcount already added) |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7397
diff
changeset
|
617 |
Symbol* array_name() { return _array_name; } |
15928
f9d5c6e4107f
8003553: NPG: metaspace objects should be zeroed in constructors
coleenp
parents:
15601
diff
changeset
|
618 |
void set_array_name(Symbol* name) { assert(_array_name == NULL || name == NULL, "name already created"); _array_name = name; } |
1 | 619 |
|
620 |
// nonstatic oop-map blocks |
|
3694
942b7bc7f28c
6845368: large objects cause a crash or unexpected exception
jcoomes
parents:
3693
diff
changeset
|
621 |
static int nonstatic_oop_map_size(unsigned int oop_map_count) { |
3693 | 622 |
return oop_map_count * OopMapBlock::size_in_words(); |
623 |
} |
|
3694
942b7bc7f28c
6845368: large objects cause a crash or unexpected exception
jcoomes
parents:
3693
diff
changeset
|
624 |
unsigned int nonstatic_oop_map_count() const { |
3693 | 625 |
return _nonstatic_oop_map_size / OopMapBlock::size_in_words(); |
626 |
} |
|
627 |
int nonstatic_oop_map_size() const { return _nonstatic_oop_map_size; } |
|
628 |
void set_nonstatic_oop_map_size(int words) { |
|
629 |
_nonstatic_oop_map_size = words; |
|
630 |
} |
|
1 | 631 |
|
632 |
// RedefineClasses() support for previous versions: |
|
633 |
void add_previous_version(instanceKlassHandle ikh, BitMap *emcp_methods, |
|
634 |
int emcp_method_count); |
|
3824
86e9e4b25bdf
6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents:
3822
diff
changeset
|
635 |
// If the _previous_versions array is non-NULL, then this klass |
86e9e4b25bdf
6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents:
3822
diff
changeset
|
636 |
// has been redefined at least once even if we aren't currently |
86e9e4b25bdf
6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents:
3822
diff
changeset
|
637 |
// tracking a previous version. |
86e9e4b25bdf
6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents:
3822
diff
changeset
|
638 |
bool has_been_redefined() const { return _previous_versions != NULL; } |
1 | 639 |
bool has_previous_version() const; |
640 |
void init_previous_versions() { |
|
641 |
_previous_versions = NULL; |
|
642 |
} |
|
643 |
GrowableArray<PreviousVersionNode *>* previous_versions() const { |
|
644 |
return _previous_versions; |
|
645 |
} |
|
646 |
||
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
647 |
static void purge_previous_versions(InstanceKlass* ik); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
648 |
|
1 | 649 |
// JVMTI: Support for caching a class file before it is modified by an agent that can do retransformation |
18940
d39d4765e6cb
8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents:
18687
diff
changeset
|
650 |
void set_cached_class_file(JvmtiCachedClassFileData *data) { |
d39d4765e6cb
8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents:
18687
diff
changeset
|
651 |
_cached_class_file = data; |
d39d4765e6cb
8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents:
18687
diff
changeset
|
652 |
} |
d39d4765e6cb
8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents:
18687
diff
changeset
|
653 |
JvmtiCachedClassFileData * get_cached_class_file() { return _cached_class_file; } |
d39d4765e6cb
8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents:
18687
diff
changeset
|
654 |
jint get_cached_class_file_len(); |
d39d4765e6cb
8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents:
18687
diff
changeset
|
655 |
unsigned char * get_cached_class_file_bytes(); |
1 | 656 |
|
657 |
// JVMTI: Support for caching of field indices, types, and offsets |
|
658 |
void set_jvmti_cached_class_field_map(JvmtiCachedClassFieldMap* descriptor) { |
|
659 |
_jvmti_cached_class_field_map = descriptor; |
|
660 |
} |
|
661 |
JvmtiCachedClassFieldMap* jvmti_cached_class_field_map() const { |
|
662 |
return _jvmti_cached_class_field_map; |
|
663 |
} |
|
664 |
||
15199
f6ca17e14c5f
8005895: Inefficient InstanceKlass field packing wasts memory.
jiangli
parents:
15105
diff
changeset
|
665 |
bool has_default_methods() const { |
f6ca17e14c5f
8005895: Inefficient InstanceKlass field packing wasts memory.
jiangli
parents:
15105
diff
changeset
|
666 |
return (_misc_flags & _misc_has_default_methods) != 0; |
f6ca17e14c5f
8005895: Inefficient InstanceKlass field packing wasts memory.
jiangli
parents:
15105
diff
changeset
|
667 |
} |
f6ca17e14c5f
8005895: Inefficient InstanceKlass field packing wasts memory.
jiangli
parents:
15105
diff
changeset
|
668 |
void set_has_default_methods(bool b) { |
f6ca17e14c5f
8005895: Inefficient InstanceKlass field packing wasts memory.
jiangli
parents:
15105
diff
changeset
|
669 |
if (b) { |
f6ca17e14c5f
8005895: Inefficient InstanceKlass field packing wasts memory.
jiangli
parents:
15105
diff
changeset
|
670 |
_misc_flags |= _misc_has_default_methods; |
f6ca17e14c5f
8005895: Inefficient InstanceKlass field packing wasts memory.
jiangli
parents:
15105
diff
changeset
|
671 |
} else { |
f6ca17e14c5f
8005895: Inefficient InstanceKlass field packing wasts memory.
jiangli
parents:
15105
diff
changeset
|
672 |
_misc_flags &= ~_misc_has_default_methods; |
f6ca17e14c5f
8005895: Inefficient InstanceKlass field packing wasts memory.
jiangli
parents:
15105
diff
changeset
|
673 |
} |
f6ca17e14c5f
8005895: Inefficient InstanceKlass field packing wasts memory.
jiangli
parents:
15105
diff
changeset
|
674 |
} |
14385 | 675 |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
676 |
// for adding methods, ConstMethod::UNSET_IDNUM means no more ids available |
1 | 677 |
inline u2 next_method_idnum(); |
678 |
void set_initial_method_idnum(u2 value) { _idnum_allocated_count = value; } |
|
679 |
||
680 |
// generics support |
|
19326
14cb6cf26a96
8021948: Change InstanceKlass::_source_file_name and _generic_signature from Symbol* to constant pool indexes.
jiangli
parents:
18940
diff
changeset
|
681 |
Symbol* generic_signature() const { |
14cb6cf26a96
8021948: Change InstanceKlass::_source_file_name and _generic_signature from Symbol* to constant pool indexes.
jiangli
parents:
18940
diff
changeset
|
682 |
return (_generic_signature_index == 0) ? |
14cb6cf26a96
8021948: Change InstanceKlass::_source_file_name and _generic_signature from Symbol* to constant pool indexes.
jiangli
parents:
18940
diff
changeset
|
683 |
(Symbol*)NULL : _constants->symbol_at(_generic_signature_index); |
14cb6cf26a96
8021948: Change InstanceKlass::_source_file_name and _generic_signature from Symbol* to constant pool indexes.
jiangli
parents:
18940
diff
changeset
|
684 |
} |
14cb6cf26a96
8021948: Change InstanceKlass::_source_file_name and _generic_signature from Symbol* to constant pool indexes.
jiangli
parents:
18940
diff
changeset
|
685 |
u2 generic_signature_index() const { |
14cb6cf26a96
8021948: Change InstanceKlass::_source_file_name and _generic_signature from Symbol* to constant pool indexes.
jiangli
parents:
18940
diff
changeset
|
686 |
return _generic_signature_index; |
14cb6cf26a96
8021948: Change InstanceKlass::_source_file_name and _generic_signature from Symbol* to constant pool indexes.
jiangli
parents:
18940
diff
changeset
|
687 |
} |
14cb6cf26a96
8021948: Change InstanceKlass::_source_file_name and _generic_signature from Symbol* to constant pool indexes.
jiangli
parents:
18940
diff
changeset
|
688 |
void set_generic_signature_index(u2 sig_index) { |
14cb6cf26a96
8021948: Change InstanceKlass::_source_file_name and _generic_signature from Symbol* to constant pool indexes.
jiangli
parents:
18940
diff
changeset
|
689 |
_generic_signature_index = sig_index; |
14cb6cf26a96
8021948: Change InstanceKlass::_source_file_name and _generic_signature from Symbol* to constant pool indexes.
jiangli
parents:
18940
diff
changeset
|
690 |
} |
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7397
diff
changeset
|
691 |
|
12231
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11731
diff
changeset
|
692 |
u2 enclosing_method_data(int offset); |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11731
diff
changeset
|
693 |
u2 enclosing_method_class_index() { |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11731
diff
changeset
|
694 |
return enclosing_method_data(enclosing_method_class_index_offset); |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11731
diff
changeset
|
695 |
} |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11731
diff
changeset
|
696 |
u2 enclosing_method_method_index() { |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11731
diff
changeset
|
697 |
return enclosing_method_data(enclosing_method_method_index_offset); |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11731
diff
changeset
|
698 |
} |
1 | 699 |
void set_enclosing_method_indices(u2 class_index, |
12231
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11731
diff
changeset
|
700 |
u2 method_index); |
1 | 701 |
|
702 |
// jmethodID support |
|
3824
86e9e4b25bdf
6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents:
3822
diff
changeset
|
703 |
static jmethodID get_jmethod_id(instanceKlassHandle ik_h, |
86e9e4b25bdf
6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents:
3822
diff
changeset
|
704 |
methodHandle method_h); |
86e9e4b25bdf
6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents:
3822
diff
changeset
|
705 |
static jmethodID get_jmethod_id_fetch_or_update(instanceKlassHandle ik_h, |
86e9e4b25bdf
6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents:
3822
diff
changeset
|
706 |
size_t idnum, jmethodID new_id, jmethodID* new_jmeths, |
86e9e4b25bdf
6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents:
3822
diff
changeset
|
707 |
jmethodID* to_dealloc_id_p, |
86e9e4b25bdf
6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents:
3822
diff
changeset
|
708 |
jmethodID** to_dealloc_jmeths_p); |
86e9e4b25bdf
6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents:
3822
diff
changeset
|
709 |
static void get_jmethod_id_length_value(jmethodID* cache, size_t idnum, |
86e9e4b25bdf
6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents:
3822
diff
changeset
|
710 |
size_t *length_p, jmethodID* id_p); |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
711 |
jmethodID jmethod_id_or_null(Method* method); |
1 | 712 |
|
713 |
// annotations support |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
714 |
Annotations* annotations() const { return _annotations; } |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
715 |
void set_annotations(Annotations* anno) { _annotations = anno; } |
15601 | 716 |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
717 |
AnnotationArray* class_annotations() const { |
15601 | 718 |
return (_annotations != NULL) ? _annotations->class_annotations() : NULL; |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
719 |
} |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
720 |
Array<AnnotationArray*>* fields_annotations() const { |
15601 | 721 |
return (_annotations != NULL) ? _annotations->fields_annotations() : NULL; |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
722 |
} |
15601 | 723 |
AnnotationArray* class_type_annotations() const { |
724 |
return (_annotations != NULL) ? _annotations->class_type_annotations() : NULL; |
|
15097
9db149412e0e
8004823: Add VM support for type annotation reflection
stefank
parents:
14816
diff
changeset
|
725 |
} |
15601 | 726 |
Array<AnnotationArray*>* fields_type_annotations() const { |
727 |
return (_annotations != NULL) ? _annotations->fields_type_annotations() : NULL; |
|
728 |
} |
|
1 | 729 |
// allocation |
730 |
instanceOop allocate_instance(TRAPS); |
|
731 |
||
732 |
// additional member function to return a handle |
|
733 |
instanceHandle allocate_instance_handle(TRAPS) { return instanceHandle(THREAD, allocate_instance(THREAD)); } |
|
734 |
||
735 |
objArrayOop allocate_objArray(int n, int length, TRAPS); |
|
736 |
// Helper function |
|
737 |
static instanceOop register_finalizer(instanceOop i, TRAPS); |
|
738 |
||
739 |
// Check whether reflection/jni/jvm code is allowed to instantiate this class; |
|
740 |
// if not, throw either an Error or an Exception. |
|
741 |
virtual void check_valid_for_instantiation(bool throwError, TRAPS); |
|
742 |
||
743 |
// initialization |
|
744 |
void call_class_initializer(TRAPS); |
|
745 |
void set_initialization_state_and_notify(ClassState state, TRAPS); |
|
746 |
||
747 |
// OopMapCache support |
|
748 |
OopMapCache* oop_map_cache() { return _oop_map_cache; } |
|
749 |
void set_oop_map_cache(OopMapCache *cache) { _oop_map_cache = cache; } |
|
750 |
void mask_for(methodHandle method, int bci, InterpreterOopMap* entry); |
|
751 |
||
752 |
// JNI identifier support (for static fields - for jni performance) |
|
753 |
JNIid* jni_ids() { return _jni_ids; } |
|
754 |
void set_jni_ids(JNIid* ids) { _jni_ids = ids; } |
|
755 |
JNIid* jni_id_for(int offset); |
|
756 |
||
757 |
// maintenance of deoptimization dependencies |
|
758 |
int mark_dependent_nmethods(DepChange& changes); |
|
759 |
void add_dependent_nmethod(nmethod* nm); |
|
760 |
void remove_dependent_nmethod(nmethod* nm); |
|
761 |
||
762 |
// On-stack replacement support |
|
763 |
nmethod* osr_nmethods_head() const { return _osr_nmethods_head; }; |
|
764 |
void set_osr_nmethods_head(nmethod* h) { _osr_nmethods_head = h; }; |
|
765 |
void add_osr_nmethod(nmethod* n); |
|
766 |
void remove_osr_nmethod(nmethod* n); |
|
17370
59a0620561fa
8003557: NPG: Klass* const k should be const Klass* k.
minqi
parents:
17078
diff
changeset
|
767 |
nmethod* lookup_osr_nmethod(const Method* m, int bci, int level, bool match_level) const; |
1 | 768 |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
769 |
// Breakpoint support (see methods on Method* for details) |
1 | 770 |
BreakpointInfo* breakpoints() const { return _breakpoints; }; |
771 |
void set_breakpoints(BreakpointInfo* bps) { _breakpoints = bps; }; |
|
772 |
||
773 |
// support for stub routines |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
774 |
static ByteSize init_state_offset() { return in_ByteSize(offset_of(InstanceKlass, _init_state)); } |
12377
ae6def2813e0
7160570: Intrinsification support for tracing framework
rbackman
parents:
12369
diff
changeset
|
775 |
TRACE_DEFINE_OFFSET; |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
776 |
static ByteSize init_thread_offset() { return in_ByteSize(offset_of(InstanceKlass, _init_thread)); } |
1 | 777 |
|
778 |
// subclass/subinterface checks |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
779 |
bool implements_interface(Klass* k) const; |
1 | 780 |
|
12369
48fd3da4025c
7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents:
12231
diff
changeset
|
781 |
// Access to the implementor of an interface. |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
782 |
Klass* implementor() const |
12369
48fd3da4025c
7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents:
12231
diff
changeset
|
783 |
{ |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
784 |
Klass** k = adr_implementor(); |
12369
48fd3da4025c
7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents:
12231
diff
changeset
|
785 |
if (k == NULL) { |
48fd3da4025c
7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents:
12231
diff
changeset
|
786 |
return NULL; |
48fd3da4025c
7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents:
12231
diff
changeset
|
787 |
} else { |
48fd3da4025c
7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents:
12231
diff
changeset
|
788 |
return *k; |
48fd3da4025c
7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents:
12231
diff
changeset
|
789 |
} |
1 | 790 |
} |
12369
48fd3da4025c
7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents:
12231
diff
changeset
|
791 |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
792 |
void set_implementor(Klass* k) { |
12369
48fd3da4025c
7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents:
12231
diff
changeset
|
793 |
assert(is_interface(), "not interface"); |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
794 |
Klass** addr = adr_implementor(); |
15873
5ce4f526e0ba
8008750: [partfait] Null pointer deference in hotspot/src/share/vm/oops/instanceKlass.hpp
morris
parents:
15601
diff
changeset
|
795 |
assert(addr != NULL, "null addr"); |
5ce4f526e0ba
8008750: [partfait] Null pointer deference in hotspot/src/share/vm/oops/instanceKlass.hpp
morris
parents:
15601
diff
changeset
|
796 |
if (addr != NULL) { |
5ce4f526e0ba
8008750: [partfait] Null pointer deference in hotspot/src/share/vm/oops/instanceKlass.hpp
morris
parents:
15601
diff
changeset
|
797 |
*addr = k; |
5ce4f526e0ba
8008750: [partfait] Null pointer deference in hotspot/src/share/vm/oops/instanceKlass.hpp
morris
parents:
15601
diff
changeset
|
798 |
} |
12369
48fd3da4025c
7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents:
12231
diff
changeset
|
799 |
} |
48fd3da4025c
7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents:
12231
diff
changeset
|
800 |
|
48fd3da4025c
7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents:
12231
diff
changeset
|
801 |
int nof_implementors() const { |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
802 |
Klass* k = implementor(); |
12369
48fd3da4025c
7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents:
12231
diff
changeset
|
803 |
if (k == NULL) { |
48fd3da4025c
7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents:
12231
diff
changeset
|
804 |
return 0; |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
805 |
} else if (k != this) { |
12369
48fd3da4025c
7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents:
12231
diff
changeset
|
806 |
return 1; |
48fd3da4025c
7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents:
12231
diff
changeset
|
807 |
} else { |
48fd3da4025c
7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents:
12231
diff
changeset
|
808 |
return 2; |
48fd3da4025c
7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents:
12231
diff
changeset
|
809 |
} |
48fd3da4025c
7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents:
12231
diff
changeset
|
810 |
} |
48fd3da4025c
7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents:
12231
diff
changeset
|
811 |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
812 |
void add_implementor(Klass* k); // k is a new class that implements this interface |
1 | 813 |
void init_implementor(); // initialize |
814 |
||
815 |
// link this class into the implementors list of every interface it implements |
|
816 |
void process_interfaces(Thread *thread); |
|
817 |
||
818 |
// virtual operations from Klass |
|
819 |
bool is_leaf_class() const { return _subklass == NULL; } |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
820 |
GrowableArray<Klass*>* compute_secondary_supers(int num_extra_slots); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
821 |
bool compute_is_subtype_of(Klass* k); |
1 | 822 |
bool can_be_primary_super_slow() const; |
823 |
int oop_size(oop obj) const { return size_helper(); } |
|
824 |
bool oop_is_instance_slow() const { return true; } |
|
825 |
||
826 |
// Iterators |
|
827 |
void do_local_static_fields(FieldClosure* cl); |
|
828 |
void do_nonstatic_fields(FieldClosure* cl); // including inherited fields |
|
829 |
void do_local_static_fields(void f(fieldDescriptor*, TRAPS), TRAPS); |
|
830 |
||
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
831 |
void methods_do(void f(Method* method)); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
832 |
void array_klasses_do(void f(Klass* k)); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
833 |
void array_klasses_do(void f(Klass* k, TRAPS), TRAPS); |
1 | 834 |
bool super_types_do(SuperTypeClosure* blk); |
835 |
||
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
836 |
// Casting from Klass* |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
837 |
static InstanceKlass* cast(Klass* k) { |
8725
8c1e3dd5fe1b
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
8676
diff
changeset
|
838 |
assert(k->is_klass(), "must be"); |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
839 |
assert(k->oop_is_instance(), "cast to InstanceKlass"); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
840 |
return (InstanceKlass*) k; |
1 | 841 |
} |
842 |
||
14385 | 843 |
InstanceKlass* java_super() const { |
844 |
return (super() == NULL) ? NULL : cast(super()); |
|
845 |
} |
|
846 |
||
1 | 847 |
// Sizing (in words) |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
848 |
static int header_size() { return align_object_offset(sizeof(InstanceKlass)/HeapWordSize); } |
15601 | 849 |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
850 |
static int size(int vtable_length, int itable_length, |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
851 |
int nonstatic_oop_map_size, |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
852 |
bool is_interface, bool is_anonymous) { |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
853 |
return align_object_size(header_size() + |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
854 |
align_object_offset(vtable_length) + |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
855 |
align_object_offset(itable_length) + |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
856 |
((is_interface || is_anonymous) ? |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
857 |
align_object_offset(nonstatic_oop_map_size) : |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
858 |
nonstatic_oop_map_size) + |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
859 |
(is_interface ? (int)sizeof(Klass*)/HeapWordSize : 0) + |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
860 |
(is_anonymous ? (int)sizeof(Klass*)/HeapWordSize : 0)); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
861 |
} |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
862 |
int size() const { return size(vtable_length(), |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
863 |
itable_length(), |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
864 |
nonstatic_oop_map_size(), |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
865 |
is_interface(), |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
866 |
is_anonymous()); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
867 |
} |
15437 | 868 |
#if INCLUDE_SERVICES |
869 |
virtual void collect_statistics(KlassSizeStats *sz) const; |
|
870 |
#endif |
|
12369
48fd3da4025c
7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents:
12231
diff
changeset
|
871 |
|
1 | 872 |
static int vtable_start_offset() { return header_size(); } |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
873 |
static int vtable_length_offset() { return offset_of(InstanceKlass, _vtable_len) / HeapWordSize; } |
1 | 874 |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
875 |
intptr_t* start_of_vtable() const { return ((intptr_t*)this) + vtable_start_offset(); } |
1 | 876 |
intptr_t* start_of_itable() const { return start_of_vtable() + align_object_offset(vtable_length()); } |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
877 |
int itable_offset_in_words() const { return start_of_itable() - (intptr_t*)this; } |
1 | 878 |
|
879 |
intptr_t* end_of_itable() const { return start_of_itable() + itable_length(); } |
|
880 |
||
8725
8c1e3dd5fe1b
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
8676
diff
changeset
|
881 |
address static_field_addr(int offset); |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
222
diff
changeset
|
882 |
|
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
222
diff
changeset
|
883 |
OopMapBlock* start_of_nonstatic_oop_maps() const { |
8725
8c1e3dd5fe1b
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
8676
diff
changeset
|
884 |
return (OopMapBlock*)(start_of_itable() + align_object_offset(itable_length())); |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
222
diff
changeset
|
885 |
} |
1 | 886 |
|
15601 | 887 |
Klass** end_of_nonstatic_oop_maps() const { |
888 |
return (Klass**)(start_of_nonstatic_oop_maps() + |
|
889 |
nonstatic_oop_map_count()); |
|
890 |
} |
|
891 |
||
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
892 |
Klass** adr_implementor() const { |
12369
48fd3da4025c
7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents:
12231
diff
changeset
|
893 |
if (is_interface()) { |
15601 | 894 |
return (Klass**)end_of_nonstatic_oop_maps(); |
12369
48fd3da4025c
7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents:
12231
diff
changeset
|
895 |
} else { |
48fd3da4025c
7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents:
12231
diff
changeset
|
896 |
return NULL; |
48fd3da4025c
7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents:
12231
diff
changeset
|
897 |
} |
48fd3da4025c
7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents:
12231
diff
changeset
|
898 |
}; |
48fd3da4025c
7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents:
12231
diff
changeset
|
899 |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
900 |
Klass** adr_host_klass() const { |
12587
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents:
12377
diff
changeset
|
901 |
if (is_anonymous()) { |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
902 |
Klass** adr_impl = adr_implementor(); |
12587
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents:
12377
diff
changeset
|
903 |
if (adr_impl != NULL) { |
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents:
12377
diff
changeset
|
904 |
return adr_impl + 1; |
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents:
12377
diff
changeset
|
905 |
} else { |
15601 | 906 |
return end_of_nonstatic_oop_maps(); |
12587
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents:
12377
diff
changeset
|
907 |
} |
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents:
12377
diff
changeset
|
908 |
} else { |
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents:
12377
diff
changeset
|
909 |
return NULL; |
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents:
12377
diff
changeset
|
910 |
} |
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents:
12377
diff
changeset
|
911 |
} |
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents:
12377
diff
changeset
|
912 |
|
1 | 913 |
// Use this to return the size of an instance in heap words: |
914 |
int size_helper() const { |
|
915 |
return layout_helper_to_size_helper(layout_helper()); |
|
916 |
} |
|
917 |
||
918 |
// This bit is initialized in classFileParser.cpp. |
|
919 |
// It is false under any of the following conditions: |
|
920 |
// - the class is abstract (including any interface) |
|
921 |
// - the class has a finalizer (if !RegisterFinalizersAtInit) |
|
922 |
// - the class size is larger than FastAllocateSizeLimit |
|
923 |
// - the class is java/lang/Class, which cannot be allocated directly |
|
924 |
bool can_be_fastpath_allocated() const { |
|
925 |
return !layout_helper_needs_slow_path(layout_helper()); |
|
926 |
} |
|
927 |
||
928 |
// Java vtable/itable |
|
929 |
klassVtable* vtable() const; // return new klassVtable wrapper |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
930 |
inline Method* method_at_vtable(int index); |
1 | 931 |
klassItable* itable() const; // return new klassItable wrapper |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
932 |
Method* method_at_itable(Klass* holder, int index, TRAPS); |
1 | 933 |
|
20391
7b146c5ebb18
8009130: Lambda: Fix access controls, loader constraints.
acorn
parents:
20379
diff
changeset
|
934 |
#if INCLUDE_JVMTI |
7b146c5ebb18
8009130: Lambda: Fix access controls, loader constraints.
acorn
parents:
20379
diff
changeset
|
935 |
void adjust_default_methods(Method** old_methods, Method** new_methods, |
7b146c5ebb18
8009130: Lambda: Fix access controls, loader constraints.
acorn
parents:
20379
diff
changeset
|
936 |
int methods_length, bool* trace_name_printed); |
7b146c5ebb18
8009130: Lambda: Fix access controls, loader constraints.
acorn
parents:
20379
diff
changeset
|
937 |
#endif // INCLUDE_JVMTI |
7b146c5ebb18
8009130: Lambda: Fix access controls, loader constraints.
acorn
parents:
20379
diff
changeset
|
938 |
|
1 | 939 |
// Garbage collection |
940 |
void oop_follow_contents(oop obj); |
|
941 |
int oop_adjust_pointers(oop obj); |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
942 |
|
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
943 |
void clean_implementors_list(BoolObjectClosure* is_alive); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
944 |
void clean_method_data(BoolObjectClosure* is_alive); |
1 | 945 |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
946 |
// Explicit metaspace deallocation of fields |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15930
diff
changeset
|
947 |
// For RedefineClasses and class file parsing errors, we need to deallocate |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15930
diff
changeset
|
948 |
// instanceKlasses and the metadata they point to. |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
949 |
void deallocate_contents(ClassLoaderData* loader_data); |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15930
diff
changeset
|
950 |
static void deallocate_methods(ClassLoaderData* loader_data, |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15930
diff
changeset
|
951 |
Array<Method*>* methods); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15930
diff
changeset
|
952 |
void static deallocate_interfaces(ClassLoaderData* loader_data, |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15930
diff
changeset
|
953 |
Klass* super_klass, |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15930
diff
changeset
|
954 |
Array<Klass*>* local_interfaces, |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15930
diff
changeset
|
955 |
Array<Klass*>* transitive_interfaces); |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
956 |
|
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
957 |
// The constant pool is on stack if any of the methods are executing or |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
958 |
// referenced by handles. |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
959 |
bool on_stack() const { return _constants->on_stack(); } |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
960 |
|
17075
b53332c50aba
8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents:
17029
diff
changeset
|
961 |
// callbacks for actions during class unloading |
b53332c50aba
8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents:
17029
diff
changeset
|
962 |
static void notify_unload_class(InstanceKlass* ik); |
b53332c50aba
8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents:
17029
diff
changeset
|
963 |
static void release_C_heap_structures(InstanceKlass* ik); |
1 | 964 |
|
965 |
// Parallel Scavenge and Parallel Old |
|
966 |
PARALLEL_GC_DECLS |
|
967 |
||
968 |
// Naming |
|
4094
1f424b2b2171
6815692: method handle code needs some cleanup (post-6655638)
jrose
parents:
3824
diff
changeset
|
969 |
const char* signature_name() const; |
1 | 970 |
|
971 |
// Iterators |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
972 |
int oop_oop_iterate(oop obj, ExtendedOopClosure* blk) { |
1 | 973 |
return oop_oop_iterate_v(obj, blk); |
974 |
} |
|
975 |
||
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
976 |
int oop_oop_iterate_m(oop obj, ExtendedOopClosure* blk, MemRegion mr) { |
1 | 977 |
return oop_oop_iterate_v_m(obj, blk, mr); |
978 |
} |
|
979 |
||
1374
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
360
diff
changeset
|
980 |
#define InstanceKlass_OOP_OOP_ITERATE_DECL(OopClosureType, nv_suffix) \ |
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
360
diff
changeset
|
981 |
int oop_oop_iterate##nv_suffix(oop obj, OopClosureType* blk); \ |
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
360
diff
changeset
|
982 |
int oop_oop_iterate##nv_suffix##_m(oop obj, OopClosureType* blk, \ |
1 | 983 |
MemRegion mr); |
984 |
||
985 |
ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceKlass_OOP_OOP_ITERATE_DECL) |
|
1374
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
360
diff
changeset
|
986 |
ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceKlass_OOP_OOP_ITERATE_DECL) |
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
360
diff
changeset
|
987 |
|
15482
470d0b0c09f1
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
15202
diff
changeset
|
988 |
#if INCLUDE_ALL_GCS |
1374
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
360
diff
changeset
|
989 |
#define InstanceKlass_OOP_OOP_ITERATE_BACKWARDS_DECL(OopClosureType, nv_suffix) \ |
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
360
diff
changeset
|
990 |
int oop_oop_iterate_backwards##nv_suffix(oop obj, OopClosureType* blk); |
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
360
diff
changeset
|
991 |
|
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
360
diff
changeset
|
992 |
ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceKlass_OOP_OOP_ITERATE_BACKWARDS_DECL) |
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
360
diff
changeset
|
993 |
ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceKlass_OOP_OOP_ITERATE_BACKWARDS_DECL) |
15482
470d0b0c09f1
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
15202
diff
changeset
|
994 |
#endif // INCLUDE_ALL_GCS |
1 | 995 |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
996 |
u2 idnum_allocated_count() const { return _idnum_allocated_count; } |
17078
a37993c37937
8008962: NPG: Memory regression: One extra Monitor per ConstantPool
iklam
parents:
17075
diff
changeset
|
997 |
|
1 | 998 |
private: |
999 |
// initialization state |
|
1000 |
#ifdef ASSERT |
|
1001 |
void set_init_state(ClassState state); |
|
1002 |
#else |
|
11407
5399831730cd
7117052: instanceKlass::_init_state can be u1 type
coleenp
parents:
11405
diff
changeset
|
1003 |
void set_init_state(ClassState state) { _init_state = (u1)state; } |
1 | 1004 |
#endif |
12587
8f819769ca1b
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents:
12377
diff
changeset
|
1005 |
void set_rewritten() { _misc_flags |= _misc_rewritten; } |
1 | 1006 |
void set_init_thread(Thread *thread) { _init_thread = thread; } |
1007 |
||
3824
86e9e4b25bdf
6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents:
3822
diff
changeset
|
1008 |
// The RedefineClasses() API can cause new method idnums to be needed |
86e9e4b25bdf
6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents:
3822
diff
changeset
|
1009 |
// which will cause the caches to grow. Safety requires different |
86e9e4b25bdf
6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents:
3822
diff
changeset
|
1010 |
// cache management logic if the caches can grow instead of just |
86e9e4b25bdf
6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents:
3822
diff
changeset
|
1011 |
// going from NULL to non-NULL. |
86e9e4b25bdf
6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents:
3822
diff
changeset
|
1012 |
bool idnum_can_increment() const { return has_been_redefined(); } |
1 | 1013 |
jmethodID* methods_jmethod_ids_acquire() const |
1014 |
{ return (jmethodID*)OrderAccess::load_ptr_acquire(&_methods_jmethod_ids); } |
|
1015 |
void release_set_methods_jmethod_ids(jmethodID* jmeths) |
|
1016 |
{ OrderAccess::release_store_ptr(&_methods_jmethod_ids, jmeths); } |
|
1017 |
||
13728
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coleenp
parents:
13201
diff
changeset
|
1018 |
// Lock during initialization |
17078
a37993c37937
8008962: NPG: Memory regression: One extra Monitor per ConstantPool
iklam
parents:
17075
diff
changeset
|
1019 |
public: |
17826
9ad5cd464a75
8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents:
17370
diff
changeset
|
1020 |
// Lock for (1) initialization; (2) access to the ConstantPool of this class. |
9ad5cd464a75
8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents:
17370
diff
changeset
|
1021 |
// Must be one per class and it has to be a VM internal object so java code |
9ad5cd464a75
8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents:
17370
diff
changeset
|
1022 |
// cannot lock it (like the mirror). |
9ad5cd464a75
8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents:
17370
diff
changeset
|
1023 |
// It has to be an object not a Mutex because it's held through java calls. |
20379
a4c59d30d67d
8025004: -XX:+CheckUnhandledOops asserts for JDK 8 Solaris fastdebug binaries
coleenp
parents:
20065
diff
changeset
|
1024 |
oop init_lock() const; |
17078
a37993c37937
8008962: NPG: Memory regression: One extra Monitor per ConstantPool
iklam
parents:
17075
diff
changeset
|
1025 |
private: |
21079
7028d0cb9b49
8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents:
20391
diff
changeset
|
1026 |
void fence_and_clear_init_lock(); |
1 | 1027 |
|
1028 |
// Static methods that are used to implement member methods where an exposed this pointer |
|
1029 |
// is needed due to possible GCs |
|
1030 |
static bool link_class_impl (instanceKlassHandle this_oop, bool throw_verifyerror, TRAPS); |
|
1031 |
static bool verify_code (instanceKlassHandle this_oop, bool throw_verifyerror, TRAPS); |
|
1032 |
static void initialize_impl (instanceKlassHandle this_oop, TRAPS); |
|
1033 |
static void eager_initialize_impl (instanceKlassHandle this_oop); |
|
1034 |
static void set_initialization_state_and_notify_impl (instanceKlassHandle this_oop, ClassState state, TRAPS); |
|
1035 |
static void call_class_initializer_impl (instanceKlassHandle this_oop, TRAPS); |
|
13728
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coleenp
parents:
13201
diff
changeset
|
1036 |
static Klass* array_klass_impl (instanceKlassHandle this_oop, bool or_null, int n, TRAPS); |
1 | 1037 |
static void do_local_static_fields_impl (instanceKlassHandle this_oop, void f(fieldDescriptor* fd, TRAPS), TRAPS); |
1038 |
/* jni_id_for_impl for jfieldID only */ |
|
1039 |
static JNIid* jni_id_for_impl (instanceKlassHandle this_oop, int offset); |
|
1040 |
||
1041 |
// Returns the array class for the n'th dimension |
|
13728
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6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
1042 |
Klass* array_klass_impl(bool or_null, int n, TRAPS); |
1 | 1043 |
|
1044 |
// Returns the array class with this class as element type |
|
13728
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6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
1045 |
Klass* array_klass_impl(bool or_null, TRAPS); |
1 | 1046 |
|
17075
b53332c50aba
8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents:
17029
diff
changeset
|
1047 |
// Free CHeap allocated fields. |
b53332c50aba
8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents:
17029
diff
changeset
|
1048 |
void release_C_heap_structures(); |
1 | 1049 |
public: |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
1050 |
// CDS support - remove and restore oops from metadata. Oops are not shared. |
1 | 1051 |
virtual void remove_unshareable_info(); |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
1052 |
virtual void restore_unshareable_info(TRAPS); |
1 | 1053 |
|
1054 |
// jvm support |
|
1055 |
jint compute_modifier_flags(TRAPS) const; |
|
1056 |
||
17029
9ff8d7c0ed79
8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
parents:
15935
diff
changeset
|
1057 |
// JSR-292 support |
9ff8d7c0ed79
8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
parents:
15935
diff
changeset
|
1058 |
MemberNameTable* member_names() { return _member_names; } |
9ff8d7c0ed79
8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
parents:
15935
diff
changeset
|
1059 |
void set_member_names(MemberNameTable* member_names) { _member_names = member_names; } |
17828
17131ab4b3b5
8014288: perf regression in nashorn JDK-8008448.js test after 8008511 changes
sspitsyn
parents:
17826
diff
changeset
|
1060 |
void add_member_name(int index, Handle member_name); |
17131ab4b3b5
8014288: perf regression in nashorn JDK-8008448.js test after 8008511 changes
sspitsyn
parents:
17826
diff
changeset
|
1061 |
oop get_member_name(int index); |
17029
9ff8d7c0ed79
8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
parents:
15935
diff
changeset
|
1062 |
|
1 | 1063 |
public: |
1064 |
// JVMTI support |
|
1065 |
jint jvmti_class_status() const; |
|
1066 |
||
1067 |
public: |
|
1068 |
// Printing |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
1069 |
#ifndef PRODUCT |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
1070 |
void print_on(outputStream* st) const; |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
1071 |
#endif |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
1072 |
void print_value_on(outputStream* st) const; |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
1073 |
|
4584
e2a449e8cc6f
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
4496
diff
changeset
|
1074 |
void oop_print_value_on(oop obj, outputStream* st); |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
1075 |
|
4584
e2a449e8cc6f
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
4496
diff
changeset
|
1076 |
#ifndef PRODUCT |
1 | 1077 |
void oop_print_on (oop obj, outputStream* st); |
1078 |
||
1079 |
void print_dependent_nmethods(bool verbose = false); |
|
1080 |
bool is_dependent_nmethod(nmethod* nm); |
|
1081 |
#endif |
|
1082 |
||
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
1083 |
const char* internal_name() const; |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
1084 |
|
1 | 1085 |
// Verification |
18439 | 1086 |
void verify_on(outputStream* st, bool check_dictionary); |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
1087 |
|
1 | 1088 |
void oop_verify_on(oop obj, outputStream* st); |
1089 |
}; |
|
1090 |
||
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
1091 |
inline Method* InstanceKlass::method_at_vtable(int index) { |
1 | 1092 |
#ifndef PRODUCT |
1093 |
assert(index >= 0, "valid vtable index"); |
|
1094 |
if (DebugVtables) { |
|
1095 |
verify_vtable_index(index); |
|
1096 |
} |
|
1097 |
#endif |
|
1098 |
vtableEntry* ve = (vtableEntry*)start_of_vtable(); |
|
1099 |
return ve[index].method(); |
|
1100 |
} |
|
1101 |
||
1102 |
// for adding methods |
|
1103 |
// UNSET_IDNUM return means no more ids available |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
1104 |
inline u2 InstanceKlass::next_method_idnum() { |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
1105 |
if (_idnum_allocated_count == ConstMethod::MAX_IDNUM) { |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
1106 |
return ConstMethod::UNSET_IDNUM; // no more ids available |
1 | 1107 |
} else { |
1108 |
return _idnum_allocated_count++; |
|
1109 |
} |
|
1110 |
} |
|
1111 |
||
1112 |
||
1113 |
/* JNIid class for jfieldIDs only */ |
|
13195 | 1114 |
class JNIid: public CHeapObj<mtClass> { |
1 | 1115 |
friend class VMStructs; |
1116 |
private: |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
1117 |
Klass* _holder; |
1 | 1118 |
JNIid* _next; |
1119 |
int _offset; |
|
1120 |
#ifdef ASSERT |
|
1121 |
bool _is_static_field_id; |
|
1122 |
#endif |
|
1123 |
||
1124 |
public: |
|
1125 |
// Accessors |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
1126 |
Klass* holder() const { return _holder; } |
1 | 1127 |
int offset() const { return _offset; } |
1128 |
JNIid* next() { return _next; } |
|
1129 |
// Constructor |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
1130 |
JNIid(Klass* holder, int offset, JNIid* next); |
1 | 1131 |
// Identifier lookup |
1132 |
JNIid* find(int offset); |
|
1133 |
||
8725
8c1e3dd5fe1b
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
8676
diff
changeset
|
1134 |
bool find_local_field(fieldDescriptor* fd) { |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
1135 |
return InstanceKlass::cast(holder())->find_local_field_from_offset(offset(), true, fd); |
8725
8c1e3dd5fe1b
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
8676
diff
changeset
|
1136 |
} |
8c1e3dd5fe1b
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
8676
diff
changeset
|
1137 |
|
1 | 1138 |
static void deallocate(JNIid* id); |
1139 |
// Debugging |
|
1140 |
#ifdef ASSERT |
|
1141 |
bool is_static_field_id() const { return _is_static_field_id; } |
|
1142 |
void set_is_static_field_id() { _is_static_field_id = true; } |
|
1143 |
#endif |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
1144 |
void verify(Klass* holder); |
1 | 1145 |
}; |
1146 |
||
1147 |
||
1148 |
// If breakpoints are more numerous than just JVMTI breakpoints, |
|
1149 |
// consider compressing this data structure. |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
1150 |
// It is currently a simple linked list defined in method.hpp. |
1 | 1151 |
|
1152 |
class BreakpointInfo; |
|
1153 |
||
1154 |
||
1155 |
// A collection point for interesting information about the previous |
|
20059
c26474fd5ac0
8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents:
19326
diff
changeset
|
1156 |
// version(s) of an InstanceKlass. A GrowableArray of PreviousVersionNodes |
c26474fd5ac0
8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents:
19326
diff
changeset
|
1157 |
// is attached to the InstanceKlass as needed. See PreviousVersionWalker below. |
13195 | 1158 |
class PreviousVersionNode : public CHeapObj<mtClass> { |
1 | 1159 |
private: |
20059
c26474fd5ac0
8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents:
19326
diff
changeset
|
1160 |
ConstantPool* _prev_constant_pool; |
220
e6ef4818c49d
6497639: 4/3 Profiling Swing application caused JVM crash
dcubed
parents:
1
diff
changeset
|
1161 |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
1162 |
// If the previous version of the InstanceKlass doesn't have any |
1 | 1163 |
// EMCP methods, then _prev_EMCP_methods will be NULL. If all the |
1164 |
// EMCP methods have been collected, then _prev_EMCP_methods can |
|
1165 |
// have a length of zero. |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
1166 |
GrowableArray<Method*>* _prev_EMCP_methods; |
1 | 1167 |
|
1168 |
public: |
|
20059
c26474fd5ac0
8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents:
19326
diff
changeset
|
1169 |
PreviousVersionNode(ConstantPool* prev_constant_pool, |
c26474fd5ac0
8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents:
19326
diff
changeset
|
1170 |
GrowableArray<Method*>* prev_EMCP_methods); |
1 | 1171 |
~PreviousVersionNode(); |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
1172 |
ConstantPool* prev_constant_pool() const { |
1 | 1173 |
return _prev_constant_pool; |
1174 |
} |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
1175 |
GrowableArray<Method*>* prev_EMCP_methods() const { |
1 | 1176 |
return _prev_EMCP_methods; |
1177 |
} |
|
1178 |
}; |
|
1179 |
||
1180 |
||
20059
c26474fd5ac0
8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents:
19326
diff
changeset
|
1181 |
// Helper object for walking previous versions. |
1 | 1182 |
class PreviousVersionWalker : public StackObj { |
1183 |
private: |
|
20059
c26474fd5ac0
8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents:
19326
diff
changeset
|
1184 |
Thread* _thread; |
1 | 1185 |
GrowableArray<PreviousVersionNode *>* _previous_versions; |
1186 |
int _current_index; |
|
20059
c26474fd5ac0
8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents:
19326
diff
changeset
|
1187 |
|
c26474fd5ac0
8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents:
19326
diff
changeset
|
1188 |
// A pointer to the current node object so we can handle the deletes. |
c26474fd5ac0
8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents:
19326
diff
changeset
|
1189 |
PreviousVersionNode* _current_p; |
1 | 1190 |
|
20059
c26474fd5ac0
8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents:
19326
diff
changeset
|
1191 |
// The constant pool handle keeps all the methods in this class from being |
c26474fd5ac0
8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents:
19326
diff
changeset
|
1192 |
// deallocated from the metaspace during class unloading. |
c26474fd5ac0
8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents:
19326
diff
changeset
|
1193 |
constantPoolHandle _current_constant_pool_handle; |
1 | 1194 |
|
1195 |
public: |
|
20059
c26474fd5ac0
8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents:
19326
diff
changeset
|
1196 |
PreviousVersionWalker(Thread* thread, InstanceKlass *ik); |
1 | 1197 |
|
1198 |
// Return the interesting information for the next previous version |
|
1199 |
// of the klass. Returns NULL if there are no more previous versions. |
|
20059
c26474fd5ac0
8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents:
19326
diff
changeset
|
1200 |
PreviousVersionNode* next_previous_version(); |
1 | 1201 |
}; |
7397 | 1202 |
|
10547 | 1203 |
|
1204 |
// |
|
1205 |
// nmethodBucket is used to record dependent nmethods for |
|
1206 |
// deoptimization. nmethod dependencies are actually <klass, method> |
|
1207 |
// pairs but we really only care about the klass part for purposes of |
|
1208 |
// finding nmethods which might need to be deoptimized. Instead of |
|
1209 |
// recording the method, a count of how many times a particular nmethod |
|
1210 |
// was recorded is kept. This ensures that any recording errors are |
|
1211 |
// noticed since an nmethod should be removed as many times are it's |
|
1212 |
// added. |
|
1213 |
// |
|
13195 | 1214 |
class nmethodBucket: public CHeapObj<mtClass> { |
10547 | 1215 |
friend class VMStructs; |
1216 |
private: |
|
1217 |
nmethod* _nmethod; |
|
1218 |
int _count; |
|
1219 |
nmethodBucket* _next; |
|
1220 |
||
1221 |
public: |
|
1222 |
nmethodBucket(nmethod* nmethod, nmethodBucket* next) { |
|
1223 |
_nmethod = nmethod; |
|
1224 |
_next = next; |
|
1225 |
_count = 1; |
|
1226 |
} |
|
1227 |
int count() { return _count; } |
|
1228 |
int increment() { _count += 1; return _count; } |
|
1229 |
int decrement() { _count -= 1; assert(_count >= 0, "don't underflow"); return _count; } |
|
1230 |
nmethodBucket* next() { return _next; } |
|
1231 |
void set_next(nmethodBucket* b) { _next = b; } |
|
1232 |
nmethod* get_nmethod() { return _nmethod; } |
|
1233 |
}; |
|
1234 |
||
12231
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11731
diff
changeset
|
1235 |
// An iterator that's used to access the inner classes indices in the |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
1236 |
// InstanceKlass::_inner_classes array. |
12231
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|
1237 |
class InnerClassesIterator : public StackObj { |
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|
1238 |
private: |
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|
1239 |
Array<jushort>* _inner_classes; |
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|
1240 |
int _length; |
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|
1241 |
int _idx; |
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|
1242 |
public: |
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|
1243 |
|
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|
1244 |
InnerClassesIterator(instanceKlassHandle k) { |
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|
1245 |
_inner_classes = k->inner_classes(); |
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|
1246 |
if (k->inner_classes() != NULL) { |
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|
1247 |
_length = _inner_classes->length(); |
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|
1248 |
// The inner class array's length should be the multiple of |
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|
1249 |
// inner_class_next_offset if it only contains the InnerClasses |
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|
1250 |
// attribute data, or it should be |
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|
1251 |
// n*inner_class_next_offset+enclosing_method_attribute_size |
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|
1252 |
// if it also contains the EnclosingMethod data. |
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|
1253 |
assert((_length % InstanceKlass::inner_class_next_offset == 0 || |
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|
1254 |
_length % InstanceKlass::inner_class_next_offset == InstanceKlass::enclosing_method_attribute_size), |
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|
1255 |
"just checking"); |
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|
1256 |
// Remove the enclosing_method portion if exists. |
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|
1257 |
if (_length % InstanceKlass::inner_class_next_offset == InstanceKlass::enclosing_method_attribute_size) { |
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|
1258 |
_length -= InstanceKlass::enclosing_method_attribute_size; |
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|
1259 |
} |
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|
1260 |
} else { |
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|
1261 |
_length = 0; |
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|
1262 |
} |
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|
1263 |
_idx = 0; |
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|
1264 |
} |
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|
1265 |
|
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|
1266 |
int length() const { |
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|
1267 |
return _length; |
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|
1268 |
} |
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changeset
|
1269 |
|
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|
1270 |
void next() { |
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|
1271 |
_idx += InstanceKlass::inner_class_next_offset; |
12231
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|
1272 |
} |
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changeset
|
1273 |
|
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|
1274 |
bool done() const { |
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|
1275 |
return (_idx >= _length); |
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|
1276 |
} |
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changeset
|
1277 |
|
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|
1278 |
u2 inner_class_info_index() const { |
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|
1279 |
return _inner_classes->at( |
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|
1280 |
_idx + InstanceKlass::inner_class_inner_class_info_offset); |
12231
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|
1281 |
} |
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changeset
|
1282 |
|
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|
1283 |
void set_inner_class_info_index(u2 index) { |
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|
1284 |
_inner_classes->at_put( |
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changeset
|
1285 |
_idx + InstanceKlass::inner_class_inner_class_info_offset, index); |
12231
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|
1286 |
} |
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changeset
|
1287 |
|
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|
1288 |
u2 outer_class_info_index() const { |
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|
1289 |
return _inner_classes->at( |
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changeset
|
1290 |
_idx + InstanceKlass::inner_class_outer_class_info_offset); |
12231
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changeset
|
1291 |
} |
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changeset
|
1292 |
|
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
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changeset
|
1293 |
void set_outer_class_info_index(u2 index) { |
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|
1294 |
_inner_classes->at_put( |
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changeset
|
1295 |
_idx + InstanceKlass::inner_class_outer_class_info_offset, index); |
12231
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changeset
|
1296 |
} |
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changeset
|
1297 |
|
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
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|
1298 |
u2 inner_name_index() const { |
13728
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changeset
|
1299 |
return _inner_classes->at( |
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changeset
|
1300 |
_idx + InstanceKlass::inner_class_inner_name_offset); |
12231
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changeset
|
1301 |
} |
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changeset
|
1302 |
|
6a9cfc59a18a
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changeset
|
1303 |
void set_inner_name_index(u2 index) { |
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changeset
|
1304 |
_inner_classes->at_put( |
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changeset
|
1305 |
_idx + InstanceKlass::inner_class_inner_name_offset, index); |
12231
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changeset
|
1306 |
} |
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changeset
|
1307 |
|
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
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changeset
|
1308 |
u2 inner_access_flags() const { |
13728
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changeset
|
1309 |
return _inner_classes->at( |
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diff
changeset
|
1310 |
_idx + InstanceKlass::inner_class_access_flags_offset); |
12231
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changeset
|
1311 |
} |
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changeset
|
1312 |
}; |
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|
1313 |
|
7397 | 1314 |
#endif // SHARE_VM_OOPS_INSTANCEKLASS_HPP |