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904
hotspot/src/share/vm/classfile/javaClasses.hpp
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904
hotspot/src/share/vm/classfile/javaClasses.hpp
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@ -0,0 +1,904 @@
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/*
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* Copyright 1997-2007 Sun Microsystems, Inc. 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
|
||||
* 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
|
||||
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||||
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
||||
* version 2 for more details (a copy is included in the LICENSE file that
|
||||
* accompanied this code).
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License version
|
||||
* 2 along with this work; if not, write to the Free Software Foundation,
|
||||
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
*
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||||
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
|
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* have any questions.
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*
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*/
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// Interface for manipulating the basic Java classes.
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//
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// All dependencies on layout of actual Java classes should be kept here.
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// If the layout of any of the classes above changes the offsets must be adjusted.
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//
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// For most classes we hardwire the offsets for performance reasons. In certain
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// cases (e.g. java.security.AccessControlContext) we compute the offsets at
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// startup since the layout here differs between JDK1.2 and JDK1.3.
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//
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// Note that fields (static and non-static) are arranged with oops before non-oops
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// on a per class basis. The offsets below have to reflect this ordering.
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//
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// When editing the layouts please update the check_offset verification code
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// correspondingly. The names in the enums must be identical to the actual field
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// names in order for the verification code to work.
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// Interface to java.lang.String objects
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class java_lang_String : AllStatic {
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private:
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enum {
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hc_value_offset = 0,
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hc_offset_offset = 1,
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hc_count_offset = 2,
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hc_hash_offset = 3
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};
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static int value_offset;
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static int offset_offset;
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static int count_offset;
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static int hash_offset;
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static Handle basic_create(int length, bool tenured, TRAPS);
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static Handle basic_create_from_unicode(jchar* unicode, int length, bool tenured, TRAPS);
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static void set_value( oop string, typeArrayOop buffer) { string->obj_field_put(value_offset, (oop)buffer); }
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static void set_offset(oop string, int offset) { string->int_field_put(offset_offset, offset); }
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static void set_count( oop string, int count) { string->int_field_put(count_offset, count); }
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public:
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// Instance creation
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static Handle create_from_unicode(jchar* unicode, int len, TRAPS);
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static Handle create_tenured_from_unicode(jchar* unicode, int len, TRAPS);
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static oop create_oop_from_unicode(jchar* unicode, int len, TRAPS);
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static Handle create_from_str(const char* utf8_str, TRAPS);
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static oop create_oop_from_str(const char* utf8_str, TRAPS);
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static Handle create_from_symbol(symbolHandle symbol, TRAPS);
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static Handle create_from_platform_dependent_str(const char* str, TRAPS);
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static Handle char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS);
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static int value_offset_in_bytes() { return value_offset; }
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static int count_offset_in_bytes() { return count_offset; }
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static int offset_offset_in_bytes() { return offset_offset; }
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static int hash_offset_in_bytes() { return hash_offset; }
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// Accessors
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static typeArrayOop value(oop java_string) {
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assert(is_instance(java_string), "must be java_string");
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return (typeArrayOop) java_string->obj_field(value_offset);
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}
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static int offset(oop java_string) {
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assert(is_instance(java_string), "must be java_string");
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return java_string->int_field(offset_offset);
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}
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static int length(oop java_string) {
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assert(is_instance(java_string), "must be java_string");
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return java_string->int_field(count_offset);
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}
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static int utf8_length(oop java_string);
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// String converters
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static char* as_utf8_string(oop java_string);
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static char* as_utf8_string(oop java_string, int start, int len);
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static jchar* as_unicode_string(oop java_string, int& length);
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static bool equals(oop java_string, jchar* chars, int len);
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// Conversion between '.' and '/' formats
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static Handle externalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '/', '.', THREAD); }
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static Handle internalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '.', '/', THREAD); }
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// Conversion
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static symbolHandle as_symbol(Handle java_string, TRAPS);
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// Testers
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static bool is_instance(oop obj) {
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return obj != NULL && obj->klass() == SystemDictionary::string_klass();
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}
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// Debugging
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static void print(Handle java_string, outputStream* st);
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friend class JavaClasses;
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};
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// Interface to java.lang.Class objects
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class java_lang_Class : AllStatic {
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friend class VMStructs;
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private:
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// The fake offsets are added by the class loader when java.lang.Class is loaded
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enum {
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hc_klass_offset = 0,
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hc_array_klass_offset = 1,
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hc_resolved_constructor_offset = 2,
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hc_number_of_fake_oop_fields = 3
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};
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static int klass_offset;
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static int resolved_constructor_offset;
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static int array_klass_offset;
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static int number_of_fake_oop_fields;
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static void compute_offsets();
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static bool offsets_computed;
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static int classRedefinedCount_offset;
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public:
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// Instance creation
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static oop create_mirror(KlassHandle k, TRAPS);
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static oop create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS);
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// Conversion
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static klassOop as_klassOop(oop java_class);
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// Testing
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static bool is_primitive(oop java_class);
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static BasicType primitive_type(oop java_class);
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static oop primitive_mirror(BasicType t);
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// JVM_NewInstance support
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static methodOop resolved_constructor(oop java_class);
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static void set_resolved_constructor(oop java_class, methodOop constructor);
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// JVM_NewArray support
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static klassOop array_klass(oop java_class);
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static void set_array_klass(oop java_class, klassOop klass);
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// compiler support for class operations
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static int klass_offset_in_bytes() { return klass_offset; }
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static int resolved_constructor_offset_in_bytes() { return resolved_constructor_offset; }
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static int array_klass_offset_in_bytes() { return array_klass_offset; }
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// Support for classRedefinedCount field
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static int classRedefinedCount(oop the_class_mirror);
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static void set_classRedefinedCount(oop the_class_mirror, int value);
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// Debugging
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friend class JavaClasses;
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friend class instanceKlass; // verification code accesses offsets
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friend class ClassFileParser; // access to number_of_fake_fields
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};
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// Interface to java.lang.Thread objects
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class java_lang_Thread : AllStatic {
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private:
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// Note that for this class the layout changed between JDK1.2 and JDK1.3,
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// so we compute the offsets at startup rather than hard-wiring them.
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static int _name_offset;
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static int _group_offset;
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static int _contextClassLoader_offset;
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static int _inheritedAccessControlContext_offset;
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static int _priority_offset;
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static int _eetop_offset;
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static int _daemon_offset;
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static int _stillborn_offset;
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static int _stackSize_offset;
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static int _tid_offset;
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static int _thread_status_offset;
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static int _park_blocker_offset;
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static int _park_event_offset ;
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static void compute_offsets();
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public:
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// Instance creation
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static oop create();
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// Returns the JavaThread associated with the thread obj
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static JavaThread* thread(oop java_thread);
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// Set JavaThread for instance
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static void set_thread(oop java_thread, JavaThread* thread);
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// Name
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static typeArrayOop name(oop java_thread);
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static void set_name(oop java_thread, typeArrayOop name);
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// Priority
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static ThreadPriority priority(oop java_thread);
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static void set_priority(oop java_thread, ThreadPriority priority);
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// Thread group
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static oop threadGroup(oop java_thread);
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// Stillborn
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static bool is_stillborn(oop java_thread);
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static void set_stillborn(oop java_thread);
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// Alive (NOTE: this is not really a field, but provides the correct
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// definition without doing a Java call)
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static bool is_alive(oop java_thread);
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// Daemon
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static bool is_daemon(oop java_thread);
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static void set_daemon(oop java_thread);
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// Context ClassLoader
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static oop context_class_loader(oop java_thread);
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// Control context
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static oop inherited_access_control_context(oop java_thread);
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// Stack size hint
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static jlong stackSize(oop java_thread);
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// Thread ID
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static jlong thread_id(oop java_thread);
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// Blocker object responsible for thread parking
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static oop park_blocker(oop java_thread);
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// Pointer to type-stable park handler, encoded as jlong.
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// Should be set when apparently null
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// For details, see unsafe.cpp Unsafe_Unpark
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static jlong park_event(oop java_thread);
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static bool set_park_event(oop java_thread, jlong ptr);
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// Java Thread Status for JVMTI and M&M use.
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// This thread status info is saved in threadStatus field of
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// java.lang.Thread java class.
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enum ThreadStatus {
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NEW = 0,
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RUNNABLE = JVMTI_THREAD_STATE_ALIVE + // runnable / running
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JVMTI_THREAD_STATE_RUNNABLE,
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SLEEPING = JVMTI_THREAD_STATE_ALIVE + // Thread.sleep()
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JVMTI_THREAD_STATE_WAITING +
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JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT +
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JVMTI_THREAD_STATE_SLEEPING,
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IN_OBJECT_WAIT = JVMTI_THREAD_STATE_ALIVE + // Object.wait()
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JVMTI_THREAD_STATE_WAITING +
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JVMTI_THREAD_STATE_WAITING_INDEFINITELY +
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JVMTI_THREAD_STATE_IN_OBJECT_WAIT,
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IN_OBJECT_WAIT_TIMED = JVMTI_THREAD_STATE_ALIVE + // Object.wait(long)
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JVMTI_THREAD_STATE_WAITING +
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JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT +
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JVMTI_THREAD_STATE_IN_OBJECT_WAIT,
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PARKED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park()
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JVMTI_THREAD_STATE_WAITING +
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JVMTI_THREAD_STATE_WAITING_INDEFINITELY +
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JVMTI_THREAD_STATE_PARKED,
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PARKED_TIMED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park(long)
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JVMTI_THREAD_STATE_WAITING +
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JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT +
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JVMTI_THREAD_STATE_PARKED,
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BLOCKED_ON_MONITOR_ENTER = JVMTI_THREAD_STATE_ALIVE + // (re-)entering a synchronization block
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JVMTI_THREAD_STATE_BLOCKED_ON_MONITOR_ENTER,
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TERMINATED = JVMTI_THREAD_STATE_TERMINATED
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};
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// Write thread status info to threadStatus field of java.lang.Thread.
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static void set_thread_status(oop java_thread_oop, ThreadStatus status);
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// Read thread status info from threadStatus field of java.lang.Thread.
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static ThreadStatus get_thread_status(oop java_thread_oop);
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static const char* thread_status_name(oop java_thread_oop);
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// Debugging
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friend class JavaClasses;
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};
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||||
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// Interface to java.lang.ThreadGroup objects
|
||||
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class java_lang_ThreadGroup : AllStatic {
|
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private:
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static int _parent_offset;
|
||||
static int _name_offset;
|
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static int _threads_offset;
|
||||
static int _groups_offset;
|
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static int _maxPriority_offset;
|
||||
static int _destroyed_offset;
|
||||
static int _daemon_offset;
|
||||
static int _vmAllowSuspension_offset;
|
||||
static int _nthreads_offset;
|
||||
static int _ngroups_offset;
|
||||
|
||||
static void compute_offsets();
|
||||
|
||||
public:
|
||||
// parent ThreadGroup
|
||||
static oop parent(oop java_thread_group);
|
||||
// name
|
||||
static typeArrayOop name(oop java_thread_group);
|
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// ("name as oop" accessor is not necessary)
|
||||
// Number of threads in group
|
||||
static int nthreads(oop java_thread_group);
|
||||
// threads
|
||||
static objArrayOop threads(oop java_thread_group);
|
||||
// Number of threads in group
|
||||
static int ngroups(oop java_thread_group);
|
||||
// groups
|
||||
static objArrayOop groups(oop java_thread_group);
|
||||
// maxPriority in group
|
||||
static ThreadPriority maxPriority(oop java_thread_group);
|
||||
// Destroyed
|
||||
static bool is_destroyed(oop java_thread_group);
|
||||
// Daemon
|
||||
static bool is_daemon(oop java_thread_group);
|
||||
// vmAllowSuspension
|
||||
static bool is_vmAllowSuspension(oop java_thread_group);
|
||||
// Debugging
|
||||
friend class JavaClasses;
|
||||
};
|
||||
|
||||
|
||||
|
||||
// Interface to java.lang.Throwable objects
|
||||
|
||||
class java_lang_Throwable: AllStatic {
|
||||
friend class BacktraceBuilder;
|
||||
|
||||
private:
|
||||
// Offsets
|
||||
enum {
|
||||
hc_backtrace_offset = 0,
|
||||
hc_detailMessage_offset = 1,
|
||||
hc_cause_offset = 2, // New since 1.4
|
||||
hc_stackTrace_offset = 3 // New since 1.4
|
||||
};
|
||||
// Trace constants
|
||||
enum {
|
||||
trace_methods_offset = 0,
|
||||
trace_bcis_offset = 1,
|
||||
trace_next_offset = 2,
|
||||
trace_size = 3,
|
||||
trace_chunk_size = 32
|
||||
};
|
||||
|
||||
static int backtrace_offset;
|
||||
static int detailMessage_offset;
|
||||
static int cause_offset;
|
||||
static int stackTrace_offset;
|
||||
|
||||
// Printing
|
||||
static char* print_stack_element_to_buffer(methodOop method, int bci);
|
||||
static void print_to_stream(Handle stream, const char* str);
|
||||
// StackTrace (programmatic access, new since 1.4)
|
||||
static void clear_stacktrace(oop throwable);
|
||||
// No stack trace available
|
||||
static const char* no_stack_trace_message();
|
||||
|
||||
public:
|
||||
// Backtrace
|
||||
static oop backtrace(oop throwable);
|
||||
static void set_backtrace(oop throwable, oop value);
|
||||
// Needed by JVMTI to filter out this internal field.
|
||||
static int get_backtrace_offset() { return backtrace_offset;}
|
||||
static int get_detailMessage_offset() { return detailMessage_offset;}
|
||||
// Message
|
||||
static oop message(oop throwable);
|
||||
static oop message(Handle throwable);
|
||||
static void set_message(oop throwable, oop value);
|
||||
// Print stack trace stored in exception by call-back to Java
|
||||
// Note: this is no longer used in Merlin, but we still suppport
|
||||
// it for compatibility.
|
||||
static void print_stack_trace(oop throwable, oop print_stream);
|
||||
static void print_stack_element(Handle stream, methodOop method, int bci);
|
||||
static void print_stack_element(outputStream *st, methodOop method, int bci);
|
||||
static void print_stack_usage(Handle stream);
|
||||
|
||||
// Allocate space for backtrace (created but stack trace not filled in)
|
||||
static void allocate_backtrace(Handle throwable, TRAPS);
|
||||
// Fill in current stack trace for throwable with preallocated backtrace (no GC)
|
||||
static void fill_in_stack_trace_of_preallocated_backtrace(Handle throwable);
|
||||
|
||||
// Fill in current stack trace, can cause GC
|
||||
static void fill_in_stack_trace(Handle throwable, TRAPS);
|
||||
static void fill_in_stack_trace(Handle throwable);
|
||||
// Programmatic access to stack trace
|
||||
static oop get_stack_trace_element(oop throwable, int index, TRAPS);
|
||||
static int get_stack_trace_depth(oop throwable, TRAPS);
|
||||
// Printing
|
||||
static void print(oop throwable, outputStream* st);
|
||||
static void print(Handle throwable, outputStream* st);
|
||||
static void print_stack_trace(oop throwable, outputStream* st);
|
||||
// Debugging
|
||||
friend class JavaClasses;
|
||||
};
|
||||
|
||||
|
||||
// Interface to java.lang.reflect.AccessibleObject objects
|
||||
|
||||
class java_lang_reflect_AccessibleObject: AllStatic {
|
||||
private:
|
||||
// Note that to reduce dependencies on the JDK we compute these
|
||||
// offsets at run-time.
|
||||
static int override_offset;
|
||||
|
||||
static void compute_offsets();
|
||||
|
||||
public:
|
||||
// Accessors
|
||||
static jboolean override(oop reflect);
|
||||
static void set_override(oop reflect, jboolean value);
|
||||
|
||||
// Debugging
|
||||
friend class JavaClasses;
|
||||
};
|
||||
|
||||
|
||||
// Interface to java.lang.reflect.Method objects
|
||||
|
||||
class java_lang_reflect_Method : public java_lang_reflect_AccessibleObject {
|
||||
private:
|
||||
// Note that to reduce dependencies on the JDK we compute these
|
||||
// offsets at run-time.
|
||||
static int clazz_offset;
|
||||
static int name_offset;
|
||||
static int returnType_offset;
|
||||
static int parameterTypes_offset;
|
||||
static int exceptionTypes_offset;
|
||||
static int slot_offset;
|
||||
static int modifiers_offset;
|
||||
static int signature_offset;
|
||||
static int annotations_offset;
|
||||
static int parameter_annotations_offset;
|
||||
static int annotation_default_offset;
|
||||
|
||||
static void compute_offsets();
|
||||
|
||||
public:
|
||||
// Allocation
|
||||
static Handle create(TRAPS);
|
||||
|
||||
// Accessors
|
||||
static oop clazz(oop reflect);
|
||||
static void set_clazz(oop reflect, oop value);
|
||||
|
||||
static oop name(oop method);
|
||||
static void set_name(oop method, oop value);
|
||||
|
||||
static oop return_type(oop method);
|
||||
static void set_return_type(oop method, oop value);
|
||||
|
||||
static oop parameter_types(oop method);
|
||||
static void set_parameter_types(oop method, oop value);
|
||||
|
||||
static oop exception_types(oop method);
|
||||
static void set_exception_types(oop method, oop value);
|
||||
|
||||
static int slot(oop reflect);
|
||||
static void set_slot(oop reflect, int value);
|
||||
|
||||
static int modifiers(oop method);
|
||||
static void set_modifiers(oop method, int value);
|
||||
|
||||
static bool has_signature_field();
|
||||
static oop signature(oop method);
|
||||
static void set_signature(oop method, oop value);
|
||||
|
||||
static bool has_annotations_field();
|
||||
static oop annotations(oop method);
|
||||
static void set_annotations(oop method, oop value);
|
||||
|
||||
static bool has_parameter_annotations_field();
|
||||
static oop parameter_annotations(oop method);
|
||||
static void set_parameter_annotations(oop method, oop value);
|
||||
|
||||
static bool has_annotation_default_field();
|
||||
static oop annotation_default(oop method);
|
||||
static void set_annotation_default(oop method, oop value);
|
||||
|
||||
// Debugging
|
||||
friend class JavaClasses;
|
||||
};
|
||||
|
||||
|
||||
// Interface to java.lang.reflect.Constructor objects
|
||||
|
||||
class java_lang_reflect_Constructor : public java_lang_reflect_AccessibleObject {
|
||||
private:
|
||||
// Note that to reduce dependencies on the JDK we compute these
|
||||
// offsets at run-time.
|
||||
static int clazz_offset;
|
||||
static int parameterTypes_offset;
|
||||
static int exceptionTypes_offset;
|
||||
static int slot_offset;
|
||||
static int modifiers_offset;
|
||||
static int signature_offset;
|
||||
static int annotations_offset;
|
||||
static int parameter_annotations_offset;
|
||||
|
||||
static void compute_offsets();
|
||||
|
||||
public:
|
||||
// Allocation
|
||||
static Handle create(TRAPS);
|
||||
|
||||
// Accessors
|
||||
static oop clazz(oop reflect);
|
||||
static void set_clazz(oop reflect, oop value);
|
||||
|
||||
static oop parameter_types(oop constructor);
|
||||
static void set_parameter_types(oop constructor, oop value);
|
||||
|
||||
static oop exception_types(oop constructor);
|
||||
static void set_exception_types(oop constructor, oop value);
|
||||
|
||||
static int slot(oop reflect);
|
||||
static void set_slot(oop reflect, int value);
|
||||
|
||||
static int modifiers(oop constructor);
|
||||
static void set_modifiers(oop constructor, int value);
|
||||
|
||||
static bool has_signature_field();
|
||||
static oop signature(oop constructor);
|
||||
static void set_signature(oop constructor, oop value);
|
||||
|
||||
static bool has_annotations_field();
|
||||
static oop annotations(oop constructor);
|
||||
static void set_annotations(oop constructor, oop value);
|
||||
|
||||
static bool has_parameter_annotations_field();
|
||||
static oop parameter_annotations(oop method);
|
||||
static void set_parameter_annotations(oop method, oop value);
|
||||
|
||||
// Debugging
|
||||
friend class JavaClasses;
|
||||
};
|
||||
|
||||
|
||||
// Interface to java.lang.reflect.Field objects
|
||||
|
||||
class java_lang_reflect_Field : public java_lang_reflect_AccessibleObject {
|
||||
private:
|
||||
// Note that to reduce dependencies on the JDK we compute these
|
||||
// offsets at run-time.
|
||||
static int clazz_offset;
|
||||
static int name_offset;
|
||||
static int type_offset;
|
||||
static int slot_offset;
|
||||
static int modifiers_offset;
|
||||
static int signature_offset;
|
||||
static int annotations_offset;
|
||||
|
||||
static void compute_offsets();
|
||||
|
||||
public:
|
||||
// Allocation
|
||||
static Handle create(TRAPS);
|
||||
|
||||
// Accessors
|
||||
static oop clazz(oop reflect);
|
||||
static void set_clazz(oop reflect, oop value);
|
||||
|
||||
static oop name(oop field);
|
||||
static void set_name(oop field, oop value);
|
||||
|
||||
static oop type(oop field);
|
||||
static void set_type(oop field, oop value);
|
||||
|
||||
static int slot(oop reflect);
|
||||
static void set_slot(oop reflect, int value);
|
||||
|
||||
static int modifiers(oop field);
|
||||
static void set_modifiers(oop field, int value);
|
||||
|
||||
static bool has_signature_field();
|
||||
static oop signature(oop constructor);
|
||||
static void set_signature(oop constructor, oop value);
|
||||
|
||||
static bool has_annotations_field();
|
||||
static oop annotations(oop constructor);
|
||||
static void set_annotations(oop constructor, oop value);
|
||||
|
||||
static bool has_parameter_annotations_field();
|
||||
static oop parameter_annotations(oop method);
|
||||
static void set_parameter_annotations(oop method, oop value);
|
||||
|
||||
static bool has_annotation_default_field();
|
||||
static oop annotation_default(oop method);
|
||||
static void set_annotation_default(oop method, oop value);
|
||||
|
||||
// Debugging
|
||||
friend class JavaClasses;
|
||||
};
|
||||
|
||||
// Interface to sun.reflect.ConstantPool objects
|
||||
class sun_reflect_ConstantPool {
|
||||
private:
|
||||
// Note that to reduce dependencies on the JDK we compute these
|
||||
// offsets at run-time.
|
||||
static int _cp_oop_offset;
|
||||
|
||||
static void compute_offsets();
|
||||
|
||||
public:
|
||||
// Allocation
|
||||
static Handle create(TRAPS);
|
||||
|
||||
// Accessors
|
||||
static oop cp_oop(oop reflect);
|
||||
static void set_cp_oop(oop reflect, oop value);
|
||||
static int cp_oop_offset() {
|
||||
return _cp_oop_offset;
|
||||
}
|
||||
|
||||
// Debugging
|
||||
friend class JavaClasses;
|
||||
};
|
||||
|
||||
// Interface to sun.reflect.UnsafeStaticFieldAccessorImpl objects
|
||||
class sun_reflect_UnsafeStaticFieldAccessorImpl {
|
||||
private:
|
||||
static int _base_offset;
|
||||
static void compute_offsets();
|
||||
|
||||
public:
|
||||
static int base_offset() {
|
||||
return _base_offset;
|
||||
}
|
||||
|
||||
// Debugging
|
||||
friend class JavaClasses;
|
||||
};
|
||||
|
||||
// Interface to java.lang primitive type boxing objects:
|
||||
// - java.lang.Boolean
|
||||
// - java.lang.Character
|
||||
// - java.lang.Float
|
||||
// - java.lang.Double
|
||||
// - java.lang.Byte
|
||||
// - java.lang.Short
|
||||
// - java.lang.Integer
|
||||
// - java.lang.Long
|
||||
|
||||
// This could be separated out into 8 individual classes.
|
||||
|
||||
class java_lang_boxing_object: AllStatic {
|
||||
private:
|
||||
enum {
|
||||
hc_value_offset = 0
|
||||
};
|
||||
static int value_offset;
|
||||
|
||||
static oop initialize_and_allocate(klassOop klass, TRAPS);
|
||||
public:
|
||||
// Allocation. Returns a boxed value, or NULL for invalid type.
|
||||
static oop create(BasicType type, jvalue* value, TRAPS);
|
||||
// Accessors. Returns the basic type being boxed, or T_ILLEGAL for invalid oop.
|
||||
static BasicType get_value(oop box, jvalue* value);
|
||||
static BasicType set_value(oop box, jvalue* value);
|
||||
|
||||
static int value_offset_in_bytes() { return value_offset; }
|
||||
|
||||
// Debugging
|
||||
friend class JavaClasses;
|
||||
};
|
||||
|
||||
|
||||
|
||||
// Interface to java.lang.ref.Reference objects
|
||||
|
||||
class java_lang_ref_Reference: AllStatic {
|
||||
public:
|
||||
enum {
|
||||
hc_referent_offset = 0,
|
||||
hc_queue_offset = 1,
|
||||
hc_next_offset = 2,
|
||||
hc_discovered_offset = 3 // Is not last, see SoftRefs.
|
||||
};
|
||||
enum {
|
||||
hc_static_lock_offset = 0,
|
||||
hc_static_pending_offset = 1
|
||||
};
|
||||
|
||||
static int referent_offset;
|
||||
static int queue_offset;
|
||||
static int next_offset;
|
||||
static int discovered_offset;
|
||||
static int static_lock_offset;
|
||||
static int static_pending_offset;
|
||||
static int number_of_fake_oop_fields;
|
||||
|
||||
// Accessors
|
||||
static oop referent(oop ref) { return *referent_addr(ref); }
|
||||
static void set_referent(oop ref, oop value);
|
||||
static oop* referent_addr(oop ref);
|
||||
|
||||
static oop next(oop ref) { return *next_addr(ref); }
|
||||
static void set_next(oop ref, oop value);
|
||||
static oop* next_addr(oop ref);
|
||||
|
||||
static oop discovered(oop ref) { return *discovered_addr(ref); }
|
||||
static void set_discovered(oop ref, oop value);
|
||||
static oop* discovered_addr(oop ref);
|
||||
|
||||
// Accessors for statics
|
||||
static oop pending_list_lock() { return *pending_list_lock_addr(); }
|
||||
static oop pending_list() { return *pending_list_addr(); }
|
||||
|
||||
static oop* pending_list_lock_addr();
|
||||
static oop* pending_list_addr();
|
||||
};
|
||||
|
||||
|
||||
// Interface to java.lang.ref.SoftReference objects
|
||||
|
||||
class java_lang_ref_SoftReference: public java_lang_ref_Reference {
|
||||
public:
|
||||
enum {
|
||||
// The timestamp is a long field and may need to be adjusted for alignment.
|
||||
hc_timestamp_offset = align_object_offset_(hc_discovered_offset + 1)
|
||||
};
|
||||
enum {
|
||||
hc_static_clock_offset = 0
|
||||
};
|
||||
|
||||
static int timestamp_offset;
|
||||
static int static_clock_offset;
|
||||
|
||||
// Accessors
|
||||
static jlong timestamp(oop ref);
|
||||
|
||||
// Accessors for statics
|
||||
static jlong clock();
|
||||
static void set_clock(jlong value);
|
||||
};
|
||||
|
||||
|
||||
// Interface to java.security.AccessControlContext objects
|
||||
|
||||
class java_security_AccessControlContext: AllStatic {
|
||||
private:
|
||||
// Note that for this class the layout changed between JDK1.2 and JDK1.3,
|
||||
// so we compute the offsets at startup rather than hard-wiring them.
|
||||
static int _context_offset;
|
||||
static int _privilegedContext_offset;
|
||||
static int _isPrivileged_offset;
|
||||
|
||||
static void compute_offsets();
|
||||
public:
|
||||
static oop create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS);
|
||||
|
||||
// Debugging/initialization
|
||||
friend class JavaClasses;
|
||||
};
|
||||
|
||||
|
||||
// Interface to java.lang.ClassLoader objects
|
||||
|
||||
class java_lang_ClassLoader : AllStatic {
|
||||
private:
|
||||
enum {
|
||||
hc_parent_offset = 0
|
||||
};
|
||||
|
||||
static int parent_offset;
|
||||
|
||||
public:
|
||||
static oop parent(oop loader);
|
||||
|
||||
static bool is_trusted_loader(oop loader);
|
||||
|
||||
// Fix for 4474172
|
||||
static oop non_reflection_class_loader(oop loader);
|
||||
|
||||
// Debugging
|
||||
friend class JavaClasses;
|
||||
};
|
||||
|
||||
|
||||
// Interface to java.lang.System objects
|
||||
|
||||
class java_lang_System : AllStatic {
|
||||
private:
|
||||
enum {
|
||||
hc_static_in_offset = 0,
|
||||
hc_static_out_offset = 1,
|
||||
hc_static_err_offset = 2
|
||||
};
|
||||
|
||||
static int offset_of_static_fields;
|
||||
static int static_in_offset;
|
||||
static int static_out_offset;
|
||||
static int static_err_offset;
|
||||
|
||||
static void compute_offsets();
|
||||
|
||||
public:
|
||||
static int in_offset_in_bytes();
|
||||
static int out_offset_in_bytes();
|
||||
static int err_offset_in_bytes();
|
||||
|
||||
// Debugging
|
||||
friend class JavaClasses;
|
||||
};
|
||||
|
||||
|
||||
// Interface to java.lang.StackTraceElement objects
|
||||
|
||||
class java_lang_StackTraceElement: AllStatic {
|
||||
private:
|
||||
enum {
|
||||
hc_declaringClass_offset = 0,
|
||||
hc_methodName_offset = 1,
|
||||
hc_fileName_offset = 2,
|
||||
hc_lineNumber_offset = 3
|
||||
};
|
||||
|
||||
static int declaringClass_offset;
|
||||
static int methodName_offset;
|
||||
static int fileName_offset;
|
||||
static int lineNumber_offset;
|
||||
|
||||
public:
|
||||
// Setters
|
||||
static void set_declaringClass(oop element, oop value);
|
||||
static void set_methodName(oop element, oop value);
|
||||
static void set_fileName(oop element, oop value);
|
||||
static void set_lineNumber(oop element, int value);
|
||||
|
||||
// Create an instance of StackTraceElement
|
||||
static oop create(methodHandle m, int bci, TRAPS);
|
||||
|
||||
// Debugging
|
||||
friend class JavaClasses;
|
||||
};
|
||||
|
||||
|
||||
// Interface to java.lang.AssertionStatusDirectives objects
|
||||
|
||||
class java_lang_AssertionStatusDirectives: AllStatic {
|
||||
private:
|
||||
enum {
|
||||
hc_classes_offset,
|
||||
hc_classEnabled_offset,
|
||||
hc_packages_offset,
|
||||
hc_packageEnabled_offset,
|
||||
hc_deflt_offset
|
||||
};
|
||||
|
||||
static int classes_offset;
|
||||
static int classEnabled_offset;
|
||||
static int packages_offset;
|
||||
static int packageEnabled_offset;
|
||||
static int deflt_offset;
|
||||
|
||||
public:
|
||||
// Setters
|
||||
static void set_classes(oop obj, oop val);
|
||||
static void set_classEnabled(oop obj, oop val);
|
||||
static void set_packages(oop obj, oop val);
|
||||
static void set_packageEnabled(oop obj, oop val);
|
||||
static void set_deflt(oop obj, bool val);
|
||||
// Debugging
|
||||
friend class JavaClasses;
|
||||
};
|
||||
|
||||
|
||||
class java_nio_Buffer: AllStatic {
|
||||
private:
|
||||
static int _limit_offset;
|
||||
|
||||
public:
|
||||
static int limit_offset();
|
||||
static void compute_offsets();
|
||||
};
|
||||
|
||||
class sun_misc_AtomicLongCSImpl: AllStatic {
|
||||
private:
|
||||
static int _value_offset;
|
||||
|
||||
public:
|
||||
static int value_offset();
|
||||
static void compute_offsets();
|
||||
};
|
||||
|
||||
class java_util_concurrent_locks_AbstractOwnableSynchronizer : AllStatic {
|
||||
private:
|
||||
static int _owner_offset;
|
||||
public:
|
||||
static void initialize(TRAPS);
|
||||
static oop get_owner_threadObj(oop obj);
|
||||
};
|
||||
|
||||
// Interface to hard-coded offset checking
|
||||
|
||||
class JavaClasses : AllStatic {
|
||||
private:
|
||||
static bool check_offset(const char *klass_name, int offset, const char *field_name, const char* field_sig) PRODUCT_RETURN0;
|
||||
static bool check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) PRODUCT_RETURN0;
|
||||
public:
|
||||
static void compute_hard_coded_offsets();
|
||||
static void compute_offsets();
|
||||
static void check_offsets() PRODUCT_RETURN;
|
||||
};
|
||||
Loading…
Add table
Add a link
Reference in a new issue