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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
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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 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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// 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;
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static int _name_offset;
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static int _threads_offset;
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static int _groups_offset;
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static int _maxPriority_offset;
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static int _destroyed_offset;
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static int _daemon_offset;
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static int _vmAllowSuspension_offset;
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static int _nthreads_offset;
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static int _ngroups_offset;
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static void compute_offsets();
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public:
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// parent ThreadGroup
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static oop parent(oop java_thread_group);
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// name
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static typeArrayOop name(oop java_thread_group);
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// ("name as oop" accessor is not necessary)
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// Number of threads in group
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static int nthreads(oop java_thread_group);
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// threads
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static objArrayOop threads(oop java_thread_group);
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// Number of threads in group
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static int ngroups(oop java_thread_group);
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// groups
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static objArrayOop groups(oop java_thread_group);
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// maxPriority in group
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static ThreadPriority maxPriority(oop java_thread_group);
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// Destroyed
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static bool is_destroyed(oop java_thread_group);
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// Daemon
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static bool is_daemon(oop java_thread_group);
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// vmAllowSuspension
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static bool is_vmAllowSuspension(oop java_thread_group);
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// Debugging
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friend class JavaClasses;
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};
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// Interface to java.lang.Throwable objects
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class java_lang_Throwable: AllStatic {
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friend class BacktraceBuilder;
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private:
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// Offsets
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enum {
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hc_backtrace_offset = 0,
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hc_detailMessage_offset = 1,
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hc_cause_offset = 2, // New since 1.4
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hc_stackTrace_offset = 3 // New since 1.4
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};
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// Trace constants
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enum {
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trace_methods_offset = 0,
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trace_bcis_offset = 1,
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trace_next_offset = 2,
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trace_size = 3,
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trace_chunk_size = 32
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};
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static int backtrace_offset;
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static int detailMessage_offset;
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static int cause_offset;
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static int stackTrace_offset;
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// Printing
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static char* print_stack_element_to_buffer(methodOop method, int bci);
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static void print_to_stream(Handle stream, const char* str);
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// StackTrace (programmatic access, new since 1.4)
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static void clear_stacktrace(oop throwable);
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// No stack trace available
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static const char* no_stack_trace_message();
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public:
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// Backtrace
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static oop backtrace(oop throwable);
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static void set_backtrace(oop throwable, oop value);
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// Needed by JVMTI to filter out this internal field.
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static int get_backtrace_offset() { return backtrace_offset;}
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static int get_detailMessage_offset() { return detailMessage_offset;}
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// Message
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static oop message(oop throwable);
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static oop message(Handle throwable);
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static void set_message(oop throwable, oop value);
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// Print stack trace stored in exception by call-back to Java
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// Note: this is no longer used in Merlin, but we still suppport
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// it for compatibility.
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static void print_stack_trace(oop throwable, oop print_stream);
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static void print_stack_element(Handle stream, methodOop method, int bci);
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static void print_stack_element(outputStream *st, methodOop method, int bci);
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static void print_stack_usage(Handle stream);
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// Allocate space for backtrace (created but stack trace not filled in)
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static void allocate_backtrace(Handle throwable, TRAPS);
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// Fill in current stack trace for throwable with preallocated backtrace (no GC)
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static void fill_in_stack_trace_of_preallocated_backtrace(Handle throwable);
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|
383 |
// Fill in current stack trace, can cause GC
|
|
384 |
static void fill_in_stack_trace(Handle throwable, TRAPS);
|
|
385 |
static void fill_in_stack_trace(Handle throwable);
|
|
386 |
// Programmatic access to stack trace
|
|
387 |
static oop get_stack_trace_element(oop throwable, int index, TRAPS);
|
|
388 |
static int get_stack_trace_depth(oop throwable, TRAPS);
|
|
389 |
// Printing
|
|
390 |
static void print(oop throwable, outputStream* st);
|
|
391 |
static void print(Handle throwable, outputStream* st);
|
|
392 |
static void print_stack_trace(oop throwable, outputStream* st);
|
|
393 |
// Debugging
|
|
394 |
friend class JavaClasses;
|
|
395 |
};
|
|
396 |
|
|
397 |
|
|
398 |
// Interface to java.lang.reflect.AccessibleObject objects
|
|
399 |
|
|
400 |
class java_lang_reflect_AccessibleObject: AllStatic {
|
|
401 |
private:
|
|
402 |
// Note that to reduce dependencies on the JDK we compute these
|
|
403 |
// offsets at run-time.
|
|
404 |
static int override_offset;
|
|
405 |
|
|
406 |
static void compute_offsets();
|
|
407 |
|
|
408 |
public:
|
|
409 |
// Accessors
|
|
410 |
static jboolean override(oop reflect);
|
|
411 |
static void set_override(oop reflect, jboolean value);
|
|
412 |
|
|
413 |
// Debugging
|
|
414 |
friend class JavaClasses;
|
|
415 |
};
|
|
416 |
|
|
417 |
|
|
418 |
// Interface to java.lang.reflect.Method objects
|
|
419 |
|
|
420 |
class java_lang_reflect_Method : public java_lang_reflect_AccessibleObject {
|
|
421 |
private:
|
|
422 |
// Note that to reduce dependencies on the JDK we compute these
|
|
423 |
// offsets at run-time.
|
|
424 |
static int clazz_offset;
|
|
425 |
static int name_offset;
|
|
426 |
static int returnType_offset;
|
|
427 |
static int parameterTypes_offset;
|
|
428 |
static int exceptionTypes_offset;
|
|
429 |
static int slot_offset;
|
|
430 |
static int modifiers_offset;
|
|
431 |
static int signature_offset;
|
|
432 |
static int annotations_offset;
|
|
433 |
static int parameter_annotations_offset;
|
|
434 |
static int annotation_default_offset;
|
|
435 |
|
|
436 |
static void compute_offsets();
|
|
437 |
|
|
438 |
public:
|
|
439 |
// Allocation
|
|
440 |
static Handle create(TRAPS);
|
|
441 |
|
|
442 |
// Accessors
|
|
443 |
static oop clazz(oop reflect);
|
|
444 |
static void set_clazz(oop reflect, oop value);
|
|
445 |
|
|
446 |
static oop name(oop method);
|
|
447 |
static void set_name(oop method, oop value);
|
|
448 |
|
|
449 |
static oop return_type(oop method);
|
|
450 |
static void set_return_type(oop method, oop value);
|
|
451 |
|
|
452 |
static oop parameter_types(oop method);
|
|
453 |
static void set_parameter_types(oop method, oop value);
|
|
454 |
|
|
455 |
static oop exception_types(oop method);
|
|
456 |
static void set_exception_types(oop method, oop value);
|
|
457 |
|
|
458 |
static int slot(oop reflect);
|
|
459 |
static void set_slot(oop reflect, int value);
|
|
460 |
|
|
461 |
static int modifiers(oop method);
|
|
462 |
static void set_modifiers(oop method, int value);
|
|
463 |
|
|
464 |
static bool has_signature_field();
|
|
465 |
static oop signature(oop method);
|
|
466 |
static void set_signature(oop method, oop value);
|
|
467 |
|
|
468 |
static bool has_annotations_field();
|
|
469 |
static oop annotations(oop method);
|
|
470 |
static void set_annotations(oop method, oop value);
|
|
471 |
|
|
472 |
static bool has_parameter_annotations_field();
|
|
473 |
static oop parameter_annotations(oop method);
|
|
474 |
static void set_parameter_annotations(oop method, oop value);
|
|
475 |
|
|
476 |
static bool has_annotation_default_field();
|
|
477 |
static oop annotation_default(oop method);
|
|
478 |
static void set_annotation_default(oop method, oop value);
|
|
479 |
|
|
480 |
// Debugging
|
|
481 |
friend class JavaClasses;
|
|
482 |
};
|
|
483 |
|
|
484 |
|
|
485 |
// Interface to java.lang.reflect.Constructor objects
|
|
486 |
|
|
487 |
class java_lang_reflect_Constructor : public java_lang_reflect_AccessibleObject {
|
|
488 |
private:
|
|
489 |
// Note that to reduce dependencies on the JDK we compute these
|
|
490 |
// offsets at run-time.
|
|
491 |
static int clazz_offset;
|
|
492 |
static int parameterTypes_offset;
|
|
493 |
static int exceptionTypes_offset;
|
|
494 |
static int slot_offset;
|
|
495 |
static int modifiers_offset;
|
|
496 |
static int signature_offset;
|
|
497 |
static int annotations_offset;
|
|
498 |
static int parameter_annotations_offset;
|
|
499 |
|
|
500 |
static void compute_offsets();
|
|
501 |
|
|
502 |
public:
|
|
503 |
// Allocation
|
|
504 |
static Handle create(TRAPS);
|
|
505 |
|
|
506 |
// Accessors
|
|
507 |
static oop clazz(oop reflect);
|
|
508 |
static void set_clazz(oop reflect, oop value);
|
|
509 |
|
|
510 |
static oop parameter_types(oop constructor);
|
|
511 |
static void set_parameter_types(oop constructor, oop value);
|
|
512 |
|
|
513 |
static oop exception_types(oop constructor);
|
|
514 |
static void set_exception_types(oop constructor, oop value);
|
|
515 |
|
|
516 |
static int slot(oop reflect);
|
|
517 |
static void set_slot(oop reflect, int value);
|
|
518 |
|
|
519 |
static int modifiers(oop constructor);
|
|
520 |
static void set_modifiers(oop constructor, int value);
|
|
521 |
|
|
522 |
static bool has_signature_field();
|
|
523 |
static oop signature(oop constructor);
|
|
524 |
static void set_signature(oop constructor, oop value);
|
|
525 |
|
|
526 |
static bool has_annotations_field();
|
|
527 |
static oop annotations(oop constructor);
|
|
528 |
static void set_annotations(oop constructor, oop value);
|
|
529 |
|
|
530 |
static bool has_parameter_annotations_field();
|
|
531 |
static oop parameter_annotations(oop method);
|
|
532 |
static void set_parameter_annotations(oop method, oop value);
|
|
533 |
|
|
534 |
// Debugging
|
|
535 |
friend class JavaClasses;
|
|
536 |
};
|
|
537 |
|
|
538 |
|
|
539 |
// Interface to java.lang.reflect.Field objects
|
|
540 |
|
|
541 |
class java_lang_reflect_Field : public java_lang_reflect_AccessibleObject {
|
|
542 |
private:
|
|
543 |
// Note that to reduce dependencies on the JDK we compute these
|
|
544 |
// offsets at run-time.
|
|
545 |
static int clazz_offset;
|
|
546 |
static int name_offset;
|
|
547 |
static int type_offset;
|
|
548 |
static int slot_offset;
|
|
549 |
static int modifiers_offset;
|
|
550 |
static int signature_offset;
|
|
551 |
static int annotations_offset;
|
|
552 |
|
|
553 |
static void compute_offsets();
|
|
554 |
|
|
555 |
public:
|
|
556 |
// Allocation
|
|
557 |
static Handle create(TRAPS);
|
|
558 |
|
|
559 |
// Accessors
|
|
560 |
static oop clazz(oop reflect);
|
|
561 |
static void set_clazz(oop reflect, oop value);
|
|
562 |
|
|
563 |
static oop name(oop field);
|
|
564 |
static void set_name(oop field, oop value);
|
|
565 |
|
|
566 |
static oop type(oop field);
|
|
567 |
static void set_type(oop field, oop value);
|
|
568 |
|
|
569 |
static int slot(oop reflect);
|
|
570 |
static void set_slot(oop reflect, int value);
|
|
571 |
|
|
572 |
static int modifiers(oop field);
|
|
573 |
static void set_modifiers(oop field, int value);
|
|
574 |
|
|
575 |
static bool has_signature_field();
|
|
576 |
static oop signature(oop constructor);
|
|
577 |
static void set_signature(oop constructor, oop value);
|
|
578 |
|
|
579 |
static bool has_annotations_field();
|
|
580 |
static oop annotations(oop constructor);
|
|
581 |
static void set_annotations(oop constructor, oop value);
|
|
582 |
|
|
583 |
static bool has_parameter_annotations_field();
|
|
584 |
static oop parameter_annotations(oop method);
|
|
585 |
static void set_parameter_annotations(oop method, oop value);
|
|
586 |
|
|
587 |
static bool has_annotation_default_field();
|
|
588 |
static oop annotation_default(oop method);
|
|
589 |
static void set_annotation_default(oop method, oop value);
|
|
590 |
|
|
591 |
// Debugging
|
|
592 |
friend class JavaClasses;
|
|
593 |
};
|
|
594 |
|
|
595 |
// Interface to sun.reflect.ConstantPool objects
|
|
596 |
class sun_reflect_ConstantPool {
|
|
597 |
private:
|
|
598 |
// Note that to reduce dependencies on the JDK we compute these
|
|
599 |
// offsets at run-time.
|
|
600 |
static int _cp_oop_offset;
|
|
601 |
|
|
602 |
static void compute_offsets();
|
|
603 |
|
|
604 |
public:
|
|
605 |
// Allocation
|
|
606 |
static Handle create(TRAPS);
|
|
607 |
|
|
608 |
// Accessors
|
|
609 |
static oop cp_oop(oop reflect);
|
|
610 |
static void set_cp_oop(oop reflect, oop value);
|
|
611 |
static int cp_oop_offset() {
|
|
612 |
return _cp_oop_offset;
|
|
613 |
}
|
|
614 |
|
|
615 |
// Debugging
|
|
616 |
friend class JavaClasses;
|
|
617 |
};
|
|
618 |
|
|
619 |
// Interface to sun.reflect.UnsafeStaticFieldAccessorImpl objects
|
|
620 |
class sun_reflect_UnsafeStaticFieldAccessorImpl {
|
|
621 |
private:
|
|
622 |
static int _base_offset;
|
|
623 |
static void compute_offsets();
|
|
624 |
|
|
625 |
public:
|
|
626 |
static int base_offset() {
|
|
627 |
return _base_offset;
|
|
628 |
}
|
|
629 |
|
|
630 |
// Debugging
|
|
631 |
friend class JavaClasses;
|
|
632 |
};
|
|
633 |
|
|
634 |
// Interface to java.lang primitive type boxing objects:
|
|
635 |
// - java.lang.Boolean
|
|
636 |
// - java.lang.Character
|
|
637 |
// - java.lang.Float
|
|
638 |
// - java.lang.Double
|
|
639 |
// - java.lang.Byte
|
|
640 |
// - java.lang.Short
|
|
641 |
// - java.lang.Integer
|
|
642 |
// - java.lang.Long
|
|
643 |
|
|
644 |
// This could be separated out into 8 individual classes.
|
|
645 |
|
|
646 |
class java_lang_boxing_object: AllStatic {
|
|
647 |
private:
|
|
648 |
enum {
|
|
649 |
hc_value_offset = 0
|
|
650 |
};
|
|
651 |
static int value_offset;
|
|
652 |
|
|
653 |
static oop initialize_and_allocate(klassOop klass, TRAPS);
|
|
654 |
public:
|
|
655 |
// Allocation. Returns a boxed value, or NULL for invalid type.
|
|
656 |
static oop create(BasicType type, jvalue* value, TRAPS);
|
|
657 |
// Accessors. Returns the basic type being boxed, or T_ILLEGAL for invalid oop.
|
|
658 |
static BasicType get_value(oop box, jvalue* value);
|
|
659 |
static BasicType set_value(oop box, jvalue* value);
|
|
660 |
|
|
661 |
static int value_offset_in_bytes() { return value_offset; }
|
|
662 |
|
|
663 |
// Debugging
|
|
664 |
friend class JavaClasses;
|
|
665 |
};
|
|
666 |
|
|
667 |
|
|
668 |
|
|
669 |
// Interface to java.lang.ref.Reference objects
|
|
670 |
|
|
671 |
class java_lang_ref_Reference: AllStatic {
|
|
672 |
public:
|
|
673 |
enum {
|
|
674 |
hc_referent_offset = 0,
|
|
675 |
hc_queue_offset = 1,
|
|
676 |
hc_next_offset = 2,
|
|
677 |
hc_discovered_offset = 3 // Is not last, see SoftRefs.
|
|
678 |
};
|
|
679 |
enum {
|
|
680 |
hc_static_lock_offset = 0,
|
|
681 |
hc_static_pending_offset = 1
|
|
682 |
};
|
|
683 |
|
|
684 |
static int referent_offset;
|
|
685 |
static int queue_offset;
|
|
686 |
static int next_offset;
|
|
687 |
static int discovered_offset;
|
|
688 |
static int static_lock_offset;
|
|
689 |
static int static_pending_offset;
|
|
690 |
static int number_of_fake_oop_fields;
|
|
691 |
|
|
692 |
// Accessors
|
|
693 |
static oop referent(oop ref) { return *referent_addr(ref); }
|
|
694 |
static void set_referent(oop ref, oop value);
|
|
695 |
static oop* referent_addr(oop ref);
|
|
696 |
|
|
697 |
static oop next(oop ref) { return *next_addr(ref); }
|
|
698 |
static void set_next(oop ref, oop value);
|
|
699 |
static oop* next_addr(oop ref);
|
|
700 |
|
|
701 |
static oop discovered(oop ref) { return *discovered_addr(ref); }
|
|
702 |
static void set_discovered(oop ref, oop value);
|
|
703 |
static oop* discovered_addr(oop ref);
|
|
704 |
|
|
705 |
// Accessors for statics
|
|
706 |
static oop pending_list_lock() { return *pending_list_lock_addr(); }
|
|
707 |
static oop pending_list() { return *pending_list_addr(); }
|
|
708 |
|
|
709 |
static oop* pending_list_lock_addr();
|
|
710 |
static oop* pending_list_addr();
|
|
711 |
};
|
|
712 |
|
|
713 |
|
|
714 |
// Interface to java.lang.ref.SoftReference objects
|
|
715 |
|
|
716 |
class java_lang_ref_SoftReference: public java_lang_ref_Reference {
|
|
717 |
public:
|
|
718 |
enum {
|
|
719 |
// The timestamp is a long field and may need to be adjusted for alignment.
|
|
720 |
hc_timestamp_offset = align_object_offset_(hc_discovered_offset + 1)
|
|
721 |
};
|
|
722 |
enum {
|
|
723 |
hc_static_clock_offset = 0
|
|
724 |
};
|
|
725 |
|
|
726 |
static int timestamp_offset;
|
|
727 |
static int static_clock_offset;
|
|
728 |
|
|
729 |
// Accessors
|
|
730 |
static jlong timestamp(oop ref);
|
|
731 |
|
|
732 |
// Accessors for statics
|
|
733 |
static jlong clock();
|
|
734 |
static void set_clock(jlong value);
|
|
735 |
};
|
|
736 |
|
|
737 |
|
|
738 |
// Interface to java.security.AccessControlContext objects
|
|
739 |
|
|
740 |
class java_security_AccessControlContext: AllStatic {
|
|
741 |
private:
|
|
742 |
// Note that for this class the layout changed between JDK1.2 and JDK1.3,
|
|
743 |
// so we compute the offsets at startup rather than hard-wiring them.
|
|
744 |
static int _context_offset;
|
|
745 |
static int _privilegedContext_offset;
|
|
746 |
static int _isPrivileged_offset;
|
|
747 |
|
|
748 |
static void compute_offsets();
|
|
749 |
public:
|
|
750 |
static oop create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS);
|
|
751 |
|
|
752 |
// Debugging/initialization
|
|
753 |
friend class JavaClasses;
|
|
754 |
};
|
|
755 |
|
|
756 |
|
|
757 |
// Interface to java.lang.ClassLoader objects
|
|
758 |
|
|
759 |
class java_lang_ClassLoader : AllStatic {
|
|
760 |
private:
|
|
761 |
enum {
|
|
762 |
hc_parent_offset = 0
|
|
763 |
};
|
|
764 |
|
|
765 |
static int parent_offset;
|
|
766 |
|
|
767 |
public:
|
|
768 |
static oop parent(oop loader);
|
|
769 |
|
|
770 |
static bool is_trusted_loader(oop loader);
|
|
771 |
|
|
772 |
// Fix for 4474172
|
|
773 |
static oop non_reflection_class_loader(oop loader);
|
|
774 |
|
|
775 |
// Debugging
|
|
776 |
friend class JavaClasses;
|
|
777 |
};
|
|
778 |
|
|
779 |
|
|
780 |
// Interface to java.lang.System objects
|
|
781 |
|
|
782 |
class java_lang_System : AllStatic {
|
|
783 |
private:
|
|
784 |
enum {
|
|
785 |
hc_static_in_offset = 0,
|
|
786 |
hc_static_out_offset = 1,
|
|
787 |
hc_static_err_offset = 2
|
|
788 |
};
|
|
789 |
|
|
790 |
static int offset_of_static_fields;
|
|
791 |
static int static_in_offset;
|
|
792 |
static int static_out_offset;
|
|
793 |
static int static_err_offset;
|
|
794 |
|
|
795 |
static void compute_offsets();
|
|
796 |
|
|
797 |
public:
|
|
798 |
static int in_offset_in_bytes();
|
|
799 |
static int out_offset_in_bytes();
|
|
800 |
static int err_offset_in_bytes();
|
|
801 |
|
|
802 |
// Debugging
|
|
803 |
friend class JavaClasses;
|
|
804 |
};
|
|
805 |
|
|
806 |
|
|
807 |
// Interface to java.lang.StackTraceElement objects
|
|
808 |
|
|
809 |
class java_lang_StackTraceElement: AllStatic {
|
|
810 |
private:
|
|
811 |
enum {
|
|
812 |
hc_declaringClass_offset = 0,
|
|
813 |
hc_methodName_offset = 1,
|
|
814 |
hc_fileName_offset = 2,
|
|
815 |
hc_lineNumber_offset = 3
|
|
816 |
};
|
|
817 |
|
|
818 |
static int declaringClass_offset;
|
|
819 |
static int methodName_offset;
|
|
820 |
static int fileName_offset;
|
|
821 |
static int lineNumber_offset;
|
|
822 |
|
|
823 |
public:
|
|
824 |
// Setters
|
|
825 |
static void set_declaringClass(oop element, oop value);
|
|
826 |
static void set_methodName(oop element, oop value);
|
|
827 |
static void set_fileName(oop element, oop value);
|
|
828 |
static void set_lineNumber(oop element, int value);
|
|
829 |
|
|
830 |
// Create an instance of StackTraceElement
|
|
831 |
static oop create(methodHandle m, int bci, TRAPS);
|
|
832 |
|
|
833 |
// Debugging
|
|
834 |
friend class JavaClasses;
|
|
835 |
};
|
|
836 |
|
|
837 |
|
|
838 |
// Interface to java.lang.AssertionStatusDirectives objects
|
|
839 |
|
|
840 |
class java_lang_AssertionStatusDirectives: AllStatic {
|
|
841 |
private:
|
|
842 |
enum {
|
|
843 |
hc_classes_offset,
|
|
844 |
hc_classEnabled_offset,
|
|
845 |
hc_packages_offset,
|
|
846 |
hc_packageEnabled_offset,
|
|
847 |
hc_deflt_offset
|
|
848 |
};
|
|
849 |
|
|
850 |
static int classes_offset;
|
|
851 |
static int classEnabled_offset;
|
|
852 |
static int packages_offset;
|
|
853 |
static int packageEnabled_offset;
|
|
854 |
static int deflt_offset;
|
|
855 |
|
|
856 |
public:
|
|
857 |
// Setters
|
|
858 |
static void set_classes(oop obj, oop val);
|
|
859 |
static void set_classEnabled(oop obj, oop val);
|
|
860 |
static void set_packages(oop obj, oop val);
|
|
861 |
static void set_packageEnabled(oop obj, oop val);
|
|
862 |
static void set_deflt(oop obj, bool val);
|
|
863 |
// Debugging
|
|
864 |
friend class JavaClasses;
|
|
865 |
};
|
|
866 |
|
|
867 |
|
|
868 |
class java_nio_Buffer: AllStatic {
|
|
869 |
private:
|
|
870 |
static int _limit_offset;
|
|
871 |
|
|
872 |
public:
|
|
873 |
static int limit_offset();
|
|
874 |
static void compute_offsets();
|
|
875 |
};
|
|
876 |
|
|
877 |
class sun_misc_AtomicLongCSImpl: AllStatic {
|
|
878 |
private:
|
|
879 |
static int _value_offset;
|
|
880 |
|
|
881 |
public:
|
|
882 |
static int value_offset();
|
|
883 |
static void compute_offsets();
|
|
884 |
};
|
|
885 |
|
|
886 |
class java_util_concurrent_locks_AbstractOwnableSynchronizer : AllStatic {
|
|
887 |
private:
|
|
888 |
static int _owner_offset;
|
|
889 |
public:
|
|
890 |
static void initialize(TRAPS);
|
|
891 |
static oop get_owner_threadObj(oop obj);
|
|
892 |
};
|
|
893 |
|
|
894 |
// Interface to hard-coded offset checking
|
|
895 |
|
|
896 |
class JavaClasses : AllStatic {
|
|
897 |
private:
|
|
898 |
static bool check_offset(const char *klass_name, int offset, const char *field_name, const char* field_sig) PRODUCT_RETURN0;
|
|
899 |
static bool check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) PRODUCT_RETURN0;
|
|
900 |
public:
|
|
901 |
static void compute_hard_coded_offsets();
|
|
902 |
static void compute_offsets();
|
|
903 |
static void check_offsets() PRODUCT_RETURN;
|
|
904 |
};
|