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src/share/vm/classfile/javaClasses.hpp@c7d713375c94 (annotated)

src/share/vm/classfile/javaClasses.hpp

Wed, 05 Dec 2007 09:02:00 -0800

author

phh

date

Wed, 05 Dec 2007 09:02:00 -0800

changeset 453

c7d713375c94

parent 435

a61af66fc99e

child 457

90f5ddc7297b

permissions

-rw-r--r--

6621621: HashMap front cache should be enabled only with AggressiveOpts
Reviewed-by: sbohne, xlu

duke@435	1	/*
duke@435	2	* Copyright 1997-2007 Sun Microsystems, Inc. All Rights Reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
duke@435	19	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435	20	* CA 95054 USA or visit www.sun.com if you need additional information or
duke@435	21	* have any questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
duke@435	25	// Interface for manipulating the basic Java classes.
duke@435	26	//
duke@435	27	// All dependencies on layout of actual Java classes should be kept here.
duke@435	28	// If the layout of any of the classes above changes the offsets must be adjusted.
duke@435	29	//
duke@435	30	// For most classes we hardwire the offsets for performance reasons. In certain
duke@435	31	// cases (e.g. java.security.AccessControlContext) we compute the offsets at
duke@435	32	// startup since the layout here differs between JDK1.2 and JDK1.3.
duke@435	33	//
duke@435	34	// Note that fields (static and non-static) are arranged with oops before non-oops
duke@435	35	// on a per class basis. The offsets below have to reflect this ordering.
duke@435	36	//
duke@435	37	// When editing the layouts please update the check_offset verification code
duke@435	38	// correspondingly. The names in the enums must be identical to the actual field
duke@435	39	// names in order for the verification code to work.
duke@435	40
duke@435	41
duke@435	42	// Interface to java.lang.String objects
duke@435	43
duke@435	44	class java_lang_String : AllStatic {
duke@435	45	private:
duke@435	46	enum {
duke@435	47	hc_value_offset = 0,
duke@435	48	hc_offset_offset = 1,
duke@435	49	hc_count_offset = 2,
duke@435	50	hc_hash_offset = 3
duke@435	51	};
duke@435	52
duke@435	53	static int value_offset;
duke@435	54	static int offset_offset;
duke@435	55	static int count_offset;
duke@435	56	static int hash_offset;
duke@435	57
duke@435	58	static Handle basic_create(int length, bool tenured, TRAPS);
duke@435	59	static Handle basic_create_from_unicode(jchar* unicode, int length, bool tenured, TRAPS);
duke@435	60
duke@435	61	static void set_value( oop string, typeArrayOop buffer) { string->obj_field_put(value_offset, (oop)buffer); }
duke@435	62	static void set_offset(oop string, int offset) { string->int_field_put(offset_offset, offset); }
duke@435	63	static void set_count( oop string, int count) { string->int_field_put(count_offset, count); }
duke@435	64
duke@435	65	public:
duke@435	66	// Instance creation
duke@435	67	static Handle create_from_unicode(jchar* unicode, int len, TRAPS);
duke@435	68	static Handle create_tenured_from_unicode(jchar* unicode, int len, TRAPS);
duke@435	69	static oop create_oop_from_unicode(jchar* unicode, int len, TRAPS);
duke@435	70	static Handle create_from_str(const char* utf8_str, TRAPS);
duke@435	71	static oop create_oop_from_str(const char* utf8_str, TRAPS);
duke@435	72	static Handle create_from_symbol(symbolHandle symbol, TRAPS);
duke@435	73	static Handle create_from_platform_dependent_str(const char* str, TRAPS);
duke@435	74	static Handle char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS);
duke@435	75
duke@435	76	static int value_offset_in_bytes() { return value_offset; }
duke@435	77	static int count_offset_in_bytes() { return count_offset; }
duke@435	78	static int offset_offset_in_bytes() { return offset_offset; }
duke@435	79	static int hash_offset_in_bytes() { return hash_offset; }
duke@435	80
duke@435	81	// Accessors
duke@435	82	static typeArrayOop value(oop java_string) {
duke@435	83	assert(is_instance(java_string), "must be java_string");
duke@435	84	return (typeArrayOop) java_string->obj_field(value_offset);
duke@435	85	}
duke@435	86	static int offset(oop java_string) {
duke@435	87	assert(is_instance(java_string), "must be java_string");
duke@435	88	return java_string->int_field(offset_offset);
duke@435	89	}
duke@435	90	static int length(oop java_string) {
duke@435	91	assert(is_instance(java_string), "must be java_string");
duke@435	92	return java_string->int_field(count_offset);
duke@435	93	}
duke@435	94	static int utf8_length(oop java_string);
duke@435	95
duke@435	96	// String converters
duke@435	97	static char* as_utf8_string(oop java_string);
duke@435	98	static char* as_utf8_string(oop java_string, int start, int len);
duke@435	99	static jchar* as_unicode_string(oop java_string, int& length);
duke@435	100
duke@435	101	static bool equals(oop java_string, jchar* chars, int len);
duke@435	102
duke@435	103	// Conversion between '.' and '/' formats
duke@435	104	static Handle externalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '/', '.', THREAD); }
duke@435	105	static Handle internalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '.', '/', THREAD); }
duke@435	106
duke@435	107	// Conversion
duke@435	108	static symbolHandle as_symbol(Handle java_string, TRAPS);
duke@435	109
duke@435	110	// Testers
duke@435	111	static bool is_instance(oop obj) {
duke@435	112	return obj != NULL && obj->klass() == SystemDictionary::string_klass();
duke@435	113	}
duke@435	114
duke@435	115	// Debugging
duke@435	116	static void print(Handle java_string, outputStream* st);
duke@435	117	friend class JavaClasses;
duke@435	118	};
duke@435	119
duke@435	120
duke@435	121	// Interface to java.lang.Class objects
duke@435	122
duke@435	123	class java_lang_Class : AllStatic {
duke@435	124	friend class VMStructs;
duke@435	125	private:
duke@435	126	// The fake offsets are added by the class loader when java.lang.Class is loaded
duke@435	127
duke@435	128	enum {
duke@435	129	hc_klass_offset = 0,
duke@435	130	hc_array_klass_offset = 1,
duke@435	131	hc_resolved_constructor_offset = 2,
duke@435	132	hc_number_of_fake_oop_fields = 3
duke@435	133	};
duke@435	134
duke@435	135	static int klass_offset;
duke@435	136	static int resolved_constructor_offset;
duke@435	137	static int array_klass_offset;
duke@435	138	static int number_of_fake_oop_fields;
duke@435	139
duke@435	140	static void compute_offsets();
duke@435	141	static bool offsets_computed;
duke@435	142	static int classRedefinedCount_offset;
duke@435	143
duke@435	144	public:
duke@435	145	// Instance creation
duke@435	146	static oop create_mirror(KlassHandle k, TRAPS);
duke@435	147	static oop create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS);
duke@435	148	// Conversion
duke@435	149	static klassOop as_klassOop(oop java_class);
duke@435	150	// Testing
duke@435	151	static bool is_primitive(oop java_class);
duke@435	152	static BasicType primitive_type(oop java_class);
duke@435	153	static oop primitive_mirror(BasicType t);
duke@435	154	// JVM_NewInstance support
duke@435	155	static methodOop resolved_constructor(oop java_class);
duke@435	156	static void set_resolved_constructor(oop java_class, methodOop constructor);
duke@435	157	// JVM_NewArray support
duke@435	158	static klassOop array_klass(oop java_class);
duke@435	159	static void set_array_klass(oop java_class, klassOop klass);
duke@435	160	// compiler support for class operations
duke@435	161	static int klass_offset_in_bytes() { return klass_offset; }
duke@435	162	static int resolved_constructor_offset_in_bytes() { return resolved_constructor_offset; }
duke@435	163	static int array_klass_offset_in_bytes() { return array_klass_offset; }
duke@435	164	// Support for classRedefinedCount field
duke@435	165	static int classRedefinedCount(oop the_class_mirror);
duke@435	166	static void set_classRedefinedCount(oop the_class_mirror, int value);
duke@435	167	// Debugging
duke@435	168	friend class JavaClasses;
duke@435	169	friend class instanceKlass; // verification code accesses offsets
duke@435	170	friend class ClassFileParser; // access to number_of_fake_fields
duke@435	171	};
duke@435	172
duke@435	173	// Interface to java.lang.Thread objects
duke@435	174
duke@435	175	class java_lang_Thread : AllStatic {
duke@435	176	private:
duke@435	177	// Note that for this class the layout changed between JDK1.2 and JDK1.3,
duke@435	178	// so we compute the offsets at startup rather than hard-wiring them.
duke@435	179	static int _name_offset;
duke@435	180	static int _group_offset;
duke@435	181	static int _contextClassLoader_offset;
duke@435	182	static int _inheritedAccessControlContext_offset;
duke@435	183	static int _priority_offset;
duke@435	184	static int _eetop_offset;
duke@435	185	static int _daemon_offset;
duke@435	186	static int _stillborn_offset;
duke@435	187	static int _stackSize_offset;
duke@435	188	static int _tid_offset;
duke@435	189	static int _thread_status_offset;
duke@435	190	static int _park_blocker_offset;
duke@435	191	static int _park_event_offset ;
duke@435	192
duke@435	193	static void compute_offsets();
duke@435	194
duke@435	195	public:
duke@435	196	// Instance creation
duke@435	197	static oop create();
duke@435	198	// Returns the JavaThread associated with the thread obj
duke@435	199	static JavaThread* thread(oop java_thread);
duke@435	200	// Set JavaThread for instance
duke@435	201	static void set_thread(oop java_thread, JavaThread* thread);
duke@435	202	// Name
duke@435	203	static typeArrayOop name(oop java_thread);
duke@435	204	static void set_name(oop java_thread, typeArrayOop name);
duke@435	205	// Priority
duke@435	206	static ThreadPriority priority(oop java_thread);
duke@435	207	static void set_priority(oop java_thread, ThreadPriority priority);
duke@435	208	// Thread group
duke@435	209	static oop threadGroup(oop java_thread);
duke@435	210	// Stillborn
duke@435	211	static bool is_stillborn(oop java_thread);
duke@435	212	static void set_stillborn(oop java_thread);
duke@435	213	// Alive (NOTE: this is not really a field, but provides the correct
duke@435	214	// definition without doing a Java call)
duke@435	215	static bool is_alive(oop java_thread);
duke@435	216	// Daemon
duke@435	217	static bool is_daemon(oop java_thread);
duke@435	218	static void set_daemon(oop java_thread);
duke@435	219	// Context ClassLoader
duke@435	220	static oop context_class_loader(oop java_thread);
duke@435	221	// Control context
duke@435	222	static oop inherited_access_control_context(oop java_thread);
duke@435	223	// Stack size hint
duke@435	224	static jlong stackSize(oop java_thread);
duke@435	225	// Thread ID
duke@435	226	static jlong thread_id(oop java_thread);
duke@435	227
duke@435	228	// Blocker object responsible for thread parking
duke@435	229	static oop park_blocker(oop java_thread);
duke@435	230
duke@435	231	// Pointer to type-stable park handler, encoded as jlong.
duke@435	232	// Should be set when apparently null
duke@435	233	// For details, see unsafe.cpp Unsafe_Unpark
duke@435	234	static jlong park_event(oop java_thread);
duke@435	235	static bool set_park_event(oop java_thread, jlong ptr);
duke@435	236
duke@435	237	// Java Thread Status for JVMTI and M&M use.
duke@435	238	// This thread status info is saved in threadStatus field of
duke@435	239	// java.lang.Thread java class.
duke@435	240	enum ThreadStatus {
duke@435	241	NEW = 0,
duke@435	242	RUNNABLE = JVMTI_THREAD_STATE_ALIVE + // runnable / running
duke@435	243	JVMTI_THREAD_STATE_RUNNABLE,
duke@435	244	SLEEPING = JVMTI_THREAD_STATE_ALIVE + // Thread.sleep()
duke@435	245	JVMTI_THREAD_STATE_WAITING +
duke@435	246	JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT +
duke@435	247	JVMTI_THREAD_STATE_SLEEPING,
duke@435	248	IN_OBJECT_WAIT = JVMTI_THREAD_STATE_ALIVE + // Object.wait()
duke@435	249	JVMTI_THREAD_STATE_WAITING +
duke@435	250	JVMTI_THREAD_STATE_WAITING_INDEFINITELY +
duke@435	251	JVMTI_THREAD_STATE_IN_OBJECT_WAIT,
duke@435	252	IN_OBJECT_WAIT_TIMED = JVMTI_THREAD_STATE_ALIVE + // Object.wait(long)
duke@435	253	JVMTI_THREAD_STATE_WAITING +
duke@435	254	JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT +
duke@435	255	JVMTI_THREAD_STATE_IN_OBJECT_WAIT,
duke@435	256	PARKED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park()
duke@435	257	JVMTI_THREAD_STATE_WAITING +
duke@435	258	JVMTI_THREAD_STATE_WAITING_INDEFINITELY +
duke@435	259	JVMTI_THREAD_STATE_PARKED,
duke@435	260	PARKED_TIMED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park(long)
duke@435	261	JVMTI_THREAD_STATE_WAITING +
duke@435	262	JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT +
duke@435	263	JVMTI_THREAD_STATE_PARKED,
duke@435	264	BLOCKED_ON_MONITOR_ENTER = JVMTI_THREAD_STATE_ALIVE + // (re-)entering a synchronization block
duke@435	265	JVMTI_THREAD_STATE_BLOCKED_ON_MONITOR_ENTER,
duke@435	266	TERMINATED = JVMTI_THREAD_STATE_TERMINATED
duke@435	267	};
duke@435	268	// Write thread status info to threadStatus field of java.lang.Thread.
duke@435	269	static void set_thread_status(oop java_thread_oop, ThreadStatus status);
duke@435	270	// Read thread status info from threadStatus field of java.lang.Thread.
duke@435	271	static ThreadStatus get_thread_status(oop java_thread_oop);
duke@435	272
duke@435	273	static const char* thread_status_name(oop java_thread_oop);
duke@435	274
duke@435	275	// Debugging
duke@435	276	friend class JavaClasses;
duke@435	277	};
duke@435	278
duke@435	279	// Interface to java.lang.ThreadGroup objects
duke@435	280
duke@435	281	class java_lang_ThreadGroup : AllStatic {
duke@435	282	private:
duke@435	283	static int _parent_offset;
duke@435	284	static int _name_offset;
duke@435	285	static int _threads_offset;
duke@435	286	static int _groups_offset;
duke@435	287	static int _maxPriority_offset;
duke@435	288	static int _destroyed_offset;
duke@435	289	static int _daemon_offset;
duke@435	290	static int _vmAllowSuspension_offset;
duke@435	291	static int _nthreads_offset;
duke@435	292	static int _ngroups_offset;
duke@435	293
duke@435	294	static void compute_offsets();
duke@435	295
duke@435	296	public:
duke@435	297	// parent ThreadGroup
duke@435	298	static oop parent(oop java_thread_group);
duke@435	299	// name
duke@435	300	static typeArrayOop name(oop java_thread_group);
duke@435	301	// ("name as oop" accessor is not necessary)
duke@435	302	// Number of threads in group
duke@435	303	static int nthreads(oop java_thread_group);
duke@435	304	// threads
duke@435	305	static objArrayOop threads(oop java_thread_group);
duke@435	306	// Number of threads in group
duke@435	307	static int ngroups(oop java_thread_group);
duke@435	308	// groups
duke@435	309	static objArrayOop groups(oop java_thread_group);
duke@435	310	// maxPriority in group
duke@435	311	static ThreadPriority maxPriority(oop java_thread_group);
duke@435	312	// Destroyed
duke@435	313	static bool is_destroyed(oop java_thread_group);
duke@435	314	// Daemon
duke@435	315	static bool is_daemon(oop java_thread_group);
duke@435	316	// vmAllowSuspension
duke@435	317	static bool is_vmAllowSuspension(oop java_thread_group);
duke@435	318	// Debugging
duke@435	319	friend class JavaClasses;
duke@435	320	};
duke@435	321
duke@435	322
duke@435	323
duke@435	324	// Interface to java.lang.Throwable objects
duke@435	325
duke@435	326	class java_lang_Throwable: AllStatic {
duke@435	327	friend class BacktraceBuilder;
duke@435	328
duke@435	329	private:
duke@435	330	// Offsets
duke@435	331	enum {
duke@435	332	hc_backtrace_offset = 0,
duke@435	333	hc_detailMessage_offset = 1,
duke@435	334	hc_cause_offset = 2, // New since 1.4
duke@435	335	hc_stackTrace_offset = 3 // New since 1.4
duke@435	336	};
duke@435	337	// Trace constants
duke@435	338	enum {
duke@435	339	trace_methods_offset = 0,
duke@435	340	trace_bcis_offset = 1,
duke@435	341	trace_next_offset = 2,
duke@435	342	trace_size = 3,
duke@435	343	trace_chunk_size = 32
duke@435	344	};
duke@435	345
duke@435	346	static int backtrace_offset;
duke@435	347	static int detailMessage_offset;
duke@435	348	static int cause_offset;
duke@435	349	static int stackTrace_offset;
duke@435	350
duke@435	351	// Printing
duke@435	352	static char* print_stack_element_to_buffer(methodOop method, int bci);
duke@435	353	static void print_to_stream(Handle stream, const char* str);
duke@435	354	// StackTrace (programmatic access, new since 1.4)
duke@435	355	static void clear_stacktrace(oop throwable);
duke@435	356	// No stack trace available
duke@435	357	static const char* no_stack_trace_message();
duke@435	358
duke@435	359	public:
duke@435	360	// Backtrace
duke@435	361	static oop backtrace(oop throwable);
duke@435	362	static void set_backtrace(oop throwable, oop value);
duke@435	363	// Needed by JVMTI to filter out this internal field.
duke@435	364	static int get_backtrace_offset() { return backtrace_offset;}
duke@435	365	static int get_detailMessage_offset() { return detailMessage_offset;}
duke@435	366	// Message
duke@435	367	static oop message(oop throwable);
duke@435	368	static oop message(Handle throwable);
duke@435	369	static void set_message(oop throwable, oop value);
duke@435	370	// Print stack trace stored in exception by call-back to Java
duke@435	371	// Note: this is no longer used in Merlin, but we still suppport
duke@435	372	// it for compatibility.
duke@435	373	static void print_stack_trace(oop throwable, oop print_stream);
duke@435	374	static void print_stack_element(Handle stream, methodOop method, int bci);
duke@435	375	static void print_stack_element(outputStream *st, methodOop method, int bci);
duke@435	376	static void print_stack_usage(Handle stream);
duke@435	377
duke@435	378	// Allocate space for backtrace (created but stack trace not filled in)
duke@435	379	static void allocate_backtrace(Handle throwable, TRAPS);
duke@435	380	// Fill in current stack trace for throwable with preallocated backtrace (no GC)
duke@435	381	static void fill_in_stack_trace_of_preallocated_backtrace(Handle throwable);
duke@435	382
duke@435	383	// Fill in current stack trace, can cause GC
duke@435	384	static void fill_in_stack_trace(Handle throwable, TRAPS);
duke@435	385	static void fill_in_stack_trace(Handle throwable);
duke@435	386	// Programmatic access to stack trace
duke@435	387	static oop get_stack_trace_element(oop throwable, int index, TRAPS);
duke@435	388	static int get_stack_trace_depth(oop throwable, TRAPS);
duke@435	389	// Printing
duke@435	390	static void print(oop throwable, outputStream* st);
duke@435	391	static void print(Handle throwable, outputStream* st);
duke@435	392	static void print_stack_trace(oop throwable, outputStream* st);
duke@435	393	// Debugging
duke@435	394	friend class JavaClasses;
duke@435	395	};
duke@435	396
duke@435	397
duke@435	398	// Interface to java.lang.reflect.AccessibleObject objects
duke@435	399
duke@435	400	class java_lang_reflect_AccessibleObject: AllStatic {
duke@435	401	private:
duke@435	402	// Note that to reduce dependencies on the JDK we compute these
duke@435	403	// offsets at run-time.
duke@435	404	static int override_offset;
duke@435	405
duke@435	406	static void compute_offsets();
duke@435	407
duke@435	408	public:
duke@435	409	// Accessors
duke@435	410	static jboolean override(oop reflect);
duke@435	411	static void set_override(oop reflect, jboolean value);
duke@435	412
duke@435	413	// Debugging
duke@435	414	friend class JavaClasses;
duke@435	415	};
duke@435	416
duke@435	417
duke@435	418	// Interface to java.lang.reflect.Method objects
duke@435	419
duke@435	420	class java_lang_reflect_Method : public java_lang_reflect_AccessibleObject {
duke@435	421	private:
duke@435	422	// Note that to reduce dependencies on the JDK we compute these
duke@435	423	// offsets at run-time.
duke@435	424	static int clazz_offset;
duke@435	425	static int name_offset;
duke@435	426	static int returnType_offset;
duke@435	427	static int parameterTypes_offset;
duke@435	428	static int exceptionTypes_offset;
duke@435	429	static int slot_offset;
duke@435	430	static int modifiers_offset;
duke@435	431	static int signature_offset;
duke@435	432	static int annotations_offset;
duke@435	433	static int parameter_annotations_offset;
duke@435	434	static int annotation_default_offset;
duke@435	435
duke@435	436	static void compute_offsets();
duke@435	437
duke@435	438	public:
duke@435	439	// Allocation
duke@435	440	static Handle create(TRAPS);
duke@435	441
duke@435	442	// Accessors
duke@435	443	static oop clazz(oop reflect);
duke@435	444	static void set_clazz(oop reflect, oop value);
duke@435	445
duke@435	446	static oop name(oop method);
duke@435	447	static void set_name(oop method, oop value);
duke@435	448
duke@435	449	static oop return_type(oop method);
duke@435	450	static void set_return_type(oop method, oop value);
duke@435	451
duke@435	452	static oop parameter_types(oop method);
duke@435	453	static void set_parameter_types(oop method, oop value);
duke@435	454
duke@435	455	static oop exception_types(oop method);
duke@435	456	static void set_exception_types(oop method, oop value);
duke@435	457
duke@435	458	static int slot(oop reflect);
duke@435	459	static void set_slot(oop reflect, int value);
duke@435	460
duke@435	461	static int modifiers(oop method);
duke@435	462	static void set_modifiers(oop method, int value);
duke@435	463
duke@435	464	static bool has_signature_field();
duke@435	465	static oop signature(oop method);
duke@435	466	static void set_signature(oop method, oop value);
duke@435	467
duke@435	468	static bool has_annotations_field();
duke@435	469	static oop annotations(oop method);
duke@435	470	static void set_annotations(oop method, oop value);
duke@435	471
duke@435	472	static bool has_parameter_annotations_field();
duke@435	473	static oop parameter_annotations(oop method);
duke@435	474	static void set_parameter_annotations(oop method, oop value);
duke@435	475
duke@435	476	static bool has_annotation_default_field();
duke@435	477	static oop annotation_default(oop method);
duke@435	478	static void set_annotation_default(oop method, oop value);
duke@435	479
duke@435	480	// Debugging
duke@435	481	friend class JavaClasses;
duke@435	482	};
duke@435	483
duke@435	484
duke@435	485	// Interface to java.lang.reflect.Constructor objects
duke@435	486
duke@435	487	class java_lang_reflect_Constructor : public java_lang_reflect_AccessibleObject {
duke@435	488	private:
duke@435	489	// Note that to reduce dependencies on the JDK we compute these
duke@435	490	// offsets at run-time.
duke@435	491	static int clazz_offset;
duke@435	492	static int parameterTypes_offset;
duke@435	493	static int exceptionTypes_offset;
duke@435	494	static int slot_offset;
duke@435	495	static int modifiers_offset;
duke@435	496	static int signature_offset;
duke@435	497	static int annotations_offset;
duke@435	498	static int parameter_annotations_offset;
duke@435	499
duke@435	500	static void compute_offsets();
duke@435	501
duke@435	502	public:
duke@435	503	// Allocation
duke@435	504	static Handle create(TRAPS);
duke@435	505
duke@435	506	// Accessors
duke@435	507	static oop clazz(oop reflect);
duke@435	508	static void set_clazz(oop reflect, oop value);
duke@435	509
duke@435	510	static oop parameter_types(oop constructor);
duke@435	511	static void set_parameter_types(oop constructor, oop value);
duke@435	512
duke@435	513	static oop exception_types(oop constructor);
duke@435	514	static void set_exception_types(oop constructor, oop value);
duke@435	515
duke@435	516	static int slot(oop reflect);
duke@435	517	static void set_slot(oop reflect, int value);
duke@435	518
duke@435	519	static int modifiers(oop constructor);
duke@435	520	static void set_modifiers(oop constructor, int value);
duke@435	521
duke@435	522	static bool has_signature_field();
duke@435	523	static oop signature(oop constructor);
duke@435	524	static void set_signature(oop constructor, oop value);
duke@435	525
duke@435	526	static bool has_annotations_field();
duke@435	527	static oop annotations(oop constructor);
duke@435	528	static void set_annotations(oop constructor, oop value);
duke@435	529
duke@435	530	static bool has_parameter_annotations_field();
duke@435	531	static oop parameter_annotations(oop method);
duke@435	532	static void set_parameter_annotations(oop method, oop value);
duke@435	533
duke@435	534	// Debugging
duke@435	535	friend class JavaClasses;
duke@435	536	};
duke@435	537
duke@435	538
duke@435	539	// Interface to java.lang.reflect.Field objects
duke@435	540
duke@435	541	class java_lang_reflect_Field : public java_lang_reflect_AccessibleObject {
duke@435	542	private:
duke@435	543	// Note that to reduce dependencies on the JDK we compute these
duke@435	544	// offsets at run-time.
duke@435	545	static int clazz_offset;
duke@435	546	static int name_offset;
duke@435	547	static int type_offset;
duke@435	548	static int slot_offset;
duke@435	549	static int modifiers_offset;
duke@435	550	static int signature_offset;
duke@435	551	static int annotations_offset;
duke@435	552
duke@435	553	static void compute_offsets();
duke@435	554
duke@435	555	public:
duke@435	556	// Allocation
duke@435	557	static Handle create(TRAPS);
duke@435	558
duke@435	559	// Accessors
duke@435	560	static oop clazz(oop reflect);
duke@435	561	static void set_clazz(oop reflect, oop value);
duke@435	562
duke@435	563	static oop name(oop field);
duke@435	564	static void set_name(oop field, oop value);
duke@435	565
duke@435	566	static oop type(oop field);
duke@435	567	static void set_type(oop field, oop value);
duke@435	568
duke@435	569	static int slot(oop reflect);
duke@435	570	static void set_slot(oop reflect, int value);
duke@435	571
duke@435	572	static int modifiers(oop field);
duke@435	573	static void set_modifiers(oop field, int value);
duke@435	574
duke@435	575	static bool has_signature_field();
duke@435	576	static oop signature(oop constructor);
duke@435	577	static void set_signature(oop constructor, oop value);
duke@435	578
duke@435	579	static bool has_annotations_field();
duke@435	580	static oop annotations(oop constructor);
duke@435	581	static void set_annotations(oop constructor, oop value);
duke@435	582
duke@435	583	static bool has_parameter_annotations_field();
duke@435	584	static oop parameter_annotations(oop method);
duke@435	585	static void set_parameter_annotations(oop method, oop value);
duke@435	586
duke@435	587	static bool has_annotation_default_field();
duke@435	588	static oop annotation_default(oop method);
duke@435	589	static void set_annotation_default(oop method, oop value);
duke@435	590
duke@435	591	// Debugging
duke@435	592	friend class JavaClasses;
duke@435	593	};
duke@435	594
duke@435	595	// Interface to sun.reflect.ConstantPool objects
duke@435	596	class sun_reflect_ConstantPool {
duke@435	597	private:
duke@435	598	// Note that to reduce dependencies on the JDK we compute these
duke@435	599	// offsets at run-time.
duke@435	600	static int _cp_oop_offset;
duke@435	601
duke@435	602	static void compute_offsets();
duke@435	603
duke@435	604	public:
duke@435	605	// Allocation
duke@435	606	static Handle create(TRAPS);
duke@435	607
duke@435	608	// Accessors
duke@435	609	static oop cp_oop(oop reflect);
duke@435	610	static void set_cp_oop(oop reflect, oop value);
duke@435	611	static int cp_oop_offset() {
duke@435	612	return _cp_oop_offset;
duke@435	613	}
duke@435	614
duke@435	615	// Debugging
duke@435	616	friend class JavaClasses;
duke@435	617	};
duke@435	618
duke@435	619	// Interface to sun.reflect.UnsafeStaticFieldAccessorImpl objects
duke@435	620	class sun_reflect_UnsafeStaticFieldAccessorImpl {
duke@435	621	private:
duke@435	622	static int _base_offset;
duke@435	623	static void compute_offsets();
duke@435	624
duke@435	625	public:
duke@435	626	static int base_offset() {
duke@435	627	return _base_offset;
duke@435	628	}
duke@435	629
duke@435	630	// Debugging
duke@435	631	friend class JavaClasses;
duke@435	632	};
duke@435	633
duke@435	634	// Interface to java.lang primitive type boxing objects:
duke@435	635	// - java.lang.Boolean
duke@435	636	// - java.lang.Character
duke@435	637	// - java.lang.Float
duke@435	638	// - java.lang.Double
duke@435	639	// - java.lang.Byte
duke@435	640	// - java.lang.Short
duke@435	641	// - java.lang.Integer
duke@435	642	// - java.lang.Long
duke@435	643
duke@435	644	// This could be separated out into 8 individual classes.
duke@435	645
duke@435	646	class java_lang_boxing_object: AllStatic {
duke@435	647	private:
duke@435	648	enum {
duke@435	649	hc_value_offset = 0
duke@435	650	};
duke@435	651	static int value_offset;
duke@435	652
duke@435	653	static oop initialize_and_allocate(klassOop klass, TRAPS);
duke@435	654	public:
duke@435	655	// Allocation. Returns a boxed value, or NULL for invalid type.
duke@435	656	static oop create(BasicType type, jvalue* value, TRAPS);
duke@435	657	// Accessors. Returns the basic type being boxed, or T_ILLEGAL for invalid oop.
duke@435	658	static BasicType get_value(oop box, jvalue* value);
duke@435	659	static BasicType set_value(oop box, jvalue* value);
duke@435	660
duke@435	661	static int value_offset_in_bytes() { return value_offset; }
duke@435	662
duke@435	663	// Debugging
duke@435	664	friend class JavaClasses;
duke@435	665	};
duke@435	666
duke@435	667
duke@435	668
duke@435	669	// Interface to java.lang.ref.Reference objects
duke@435	670
duke@435	671	class java_lang_ref_Reference: AllStatic {
duke@435	672	public:
duke@435	673	enum {
duke@435	674	hc_referent_offset = 0,
duke@435	675	hc_queue_offset = 1,
duke@435	676	hc_next_offset = 2,
duke@435	677	hc_discovered_offset = 3 // Is not last, see SoftRefs.
duke@435	678	};
duke@435	679	enum {
duke@435	680	hc_static_lock_offset = 0,
duke@435	681	hc_static_pending_offset = 1
duke@435	682	};
duke@435	683
duke@435	684	static int referent_offset;
duke@435	685	static int queue_offset;
duke@435	686	static int next_offset;
duke@435	687	static int discovered_offset;
duke@435	688	static int static_lock_offset;
duke@435	689	static int static_pending_offset;
duke@435	690	static int number_of_fake_oop_fields;
duke@435	691
duke@435	692	// Accessors
duke@435	693	static oop referent(oop ref) { return *referent_addr(ref); }
duke@435	694	static void set_referent(oop ref, oop value);
duke@435	695	static oop* referent_addr(oop ref);
duke@435	696
duke@435	697	static oop next(oop ref) { return *next_addr(ref); }
duke@435	698	static void set_next(oop ref, oop value);
duke@435	699	static oop* next_addr(oop ref);
duke@435	700
duke@435	701	static oop discovered(oop ref) { return *discovered_addr(ref); }
duke@435	702	static void set_discovered(oop ref, oop value);
duke@435	703	static oop* discovered_addr(oop ref);
duke@435	704
duke@435	705	// Accessors for statics
duke@435	706	static oop pending_list_lock() { return *pending_list_lock_addr(); }
duke@435	707	static oop pending_list() { return *pending_list_addr(); }
duke@435	708
duke@435	709	static oop* pending_list_lock_addr();
duke@435	710	static oop* pending_list_addr();
duke@435	711	};
duke@435	712
duke@435	713
duke@435	714	// Interface to java.lang.ref.SoftReference objects
duke@435	715
duke@435	716	class java_lang_ref_SoftReference: public java_lang_ref_Reference {
duke@435	717	public:
duke@435	718	enum {
duke@435	719	// The timestamp is a long field and may need to be adjusted for alignment.
duke@435	720	hc_timestamp_offset = align_object_offset_(hc_discovered_offset + 1)
duke@435	721	};
duke@435	722	enum {
duke@435	723	hc_static_clock_offset = 0
duke@435	724	};
duke@435	725
duke@435	726	static int timestamp_offset;
duke@435	727	static int static_clock_offset;
duke@435	728
duke@435	729	// Accessors
duke@435	730	static jlong timestamp(oop ref);
duke@435	731
duke@435	732	// Accessors for statics
duke@435	733	static jlong clock();
duke@435	734	static void set_clock(jlong value);
duke@435	735	};
duke@435	736
duke@435	737
duke@435	738	// Interface to java.security.AccessControlContext objects
duke@435	739
duke@435	740	class java_security_AccessControlContext: AllStatic {
duke@435	741	private:
duke@435	742	// Note that for this class the layout changed between JDK1.2 and JDK1.3,
duke@435	743	// so we compute the offsets at startup rather than hard-wiring them.
duke@435	744	static int _context_offset;
duke@435	745	static int _privilegedContext_offset;
duke@435	746	static int _isPrivileged_offset;
duke@435	747
duke@435	748	static void compute_offsets();
duke@435	749	public:
duke@435	750	static oop create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS);
duke@435	751
duke@435	752	// Debugging/initialization
duke@435	753	friend class JavaClasses;
duke@435	754	};
duke@435	755
duke@435	756
duke@435	757	// Interface to java.lang.ClassLoader objects
duke@435	758
duke@435	759	class java_lang_ClassLoader : AllStatic {
duke@435	760	private:
duke@435	761	enum {
duke@435	762	hc_parent_offset = 0
duke@435	763	};
duke@435	764
duke@435	765	static int parent_offset;
duke@435	766
duke@435	767	public:
duke@435	768	static oop parent(oop loader);
duke@435	769
duke@435	770	static bool is_trusted_loader(oop loader);
duke@435	771
duke@435	772	// Fix for 4474172
duke@435	773	static oop non_reflection_class_loader(oop loader);
duke@435	774
duke@435	775	// Debugging
duke@435	776	friend class JavaClasses;
duke@435	777	};
duke@435	778
duke@435	779
duke@435	780	// Interface to java.lang.System objects
duke@435	781
duke@435	782	class java_lang_System : AllStatic {
duke@435	783	private:
duke@435	784	enum {
duke@435	785	hc_static_in_offset = 0,
duke@435	786	hc_static_out_offset = 1,
duke@435	787	hc_static_err_offset = 2
duke@435	788	};
duke@435	789
duke@435	790	static int offset_of_static_fields;
duke@435	791	static int static_in_offset;
duke@435	792	static int static_out_offset;
duke@435	793	static int static_err_offset;
duke@435	794
duke@435	795	static void compute_offsets();
duke@435	796
duke@435	797	public:
duke@435	798	static int in_offset_in_bytes();
duke@435	799	static int out_offset_in_bytes();
duke@435	800	static int err_offset_in_bytes();
duke@435	801
duke@435	802	// Debugging
duke@435	803	friend class JavaClasses;
duke@435	804	};
duke@435	805
duke@435	806
duke@435	807	// Interface to java.lang.StackTraceElement objects
duke@435	808
duke@435	809	class java_lang_StackTraceElement: AllStatic {
duke@435	810	private:
duke@435	811	enum {
duke@435	812	hc_declaringClass_offset = 0,
duke@435	813	hc_methodName_offset = 1,
duke@435	814	hc_fileName_offset = 2,
duke@435	815	hc_lineNumber_offset = 3
duke@435	816	};
duke@435	817
duke@435	818	static int declaringClass_offset;
duke@435	819	static int methodName_offset;
duke@435	820	static int fileName_offset;
duke@435	821	static int lineNumber_offset;
duke@435	822
duke@435	823	public:
duke@435	824	// Setters
duke@435	825	static void set_declaringClass(oop element, oop value);
duke@435	826	static void set_methodName(oop element, oop value);
duke@435	827	static void set_fileName(oop element, oop value);
duke@435	828	static void set_lineNumber(oop element, int value);
duke@435	829
duke@435	830	// Create an instance of StackTraceElement
duke@435	831	static oop create(methodHandle m, int bci, TRAPS);
duke@435	832
duke@435	833	// Debugging
duke@435	834	friend class JavaClasses;
duke@435	835	};
duke@435	836
duke@435	837
duke@435	838	// Interface to java.lang.AssertionStatusDirectives objects
duke@435	839
duke@435	840	class java_lang_AssertionStatusDirectives: AllStatic {
duke@435	841	private:
duke@435	842	enum {
duke@435	843	hc_classes_offset,
duke@435	844	hc_classEnabled_offset,
duke@435	845	hc_packages_offset,
duke@435	846	hc_packageEnabled_offset,
duke@435	847	hc_deflt_offset
duke@435	848	};
duke@435	849
duke@435	850	static int classes_offset;
duke@435	851	static int classEnabled_offset;
duke@435	852	static int packages_offset;
duke@435	853	static int packageEnabled_offset;
duke@435	854	static int deflt_offset;
duke@435	855
duke@435	856	public:
duke@435	857	// Setters
duke@435	858	static void set_classes(oop obj, oop val);
duke@435	859	static void set_classEnabled(oop obj, oop val);
duke@435	860	static void set_packages(oop obj, oop val);
duke@435	861	static void set_packageEnabled(oop obj, oop val);
duke@435	862	static void set_deflt(oop obj, bool val);
duke@435	863	// Debugging
duke@435	864	friend class JavaClasses;
duke@435	865	};
duke@435	866
duke@435	867
duke@435	868	class java_nio_Buffer: AllStatic {
duke@435	869	private:
duke@435	870	static int _limit_offset;
duke@435	871
duke@435	872	public:
duke@435	873	static int limit_offset();
duke@435	874	static void compute_offsets();
duke@435	875	};
duke@435	876
duke@435	877	class sun_misc_AtomicLongCSImpl: AllStatic {
duke@435	878	private:
duke@435	879	static int _value_offset;
duke@435	880
duke@435	881	public:
duke@435	882	static int value_offset();
duke@435	883	static void compute_offsets();
duke@435	884	};
duke@435	885
duke@435	886	class java_util_concurrent_locks_AbstractOwnableSynchronizer : AllStatic {
duke@435	887	private:
duke@435	888	static int _owner_offset;
duke@435	889	public:
duke@435	890	static void initialize(TRAPS);
duke@435	891	static oop get_owner_threadObj(oop obj);
duke@435	892	};
duke@435	893
duke@435	894	// Interface to hard-coded offset checking
duke@435	895
duke@435	896	class JavaClasses : AllStatic {
duke@435	897	private:
duke@435	898	static bool check_offset(const char *klass_name, int offset, const char *field_name, const char* field_sig) PRODUCT_RETURN0;
duke@435	899	static bool check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) PRODUCT_RETURN0;
duke@435	900	public:
duke@435	901	static void compute_hard_coded_offsets();
duke@435	902	static void compute_offsets();
duke@435	903	static void check_offsets() PRODUCT_RETURN;
duke@435	904	};