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src/share/vm/classfile/javaClasses.hpp@c7f3d0b4570f (annotated)

src/share/vm/classfile/javaClasses.hpp

Fri, 18 Mar 2011 16:00:34 -0700

author

never

date

Fri, 18 Mar 2011 16:00:34 -0700

changeset 2658

c7f3d0b4570f

parent 2639

8033953d67ff

child 2700

352622fd140a

permissions

-rw-r--r--

7017732: move static fields into Class to prepare for perm gen removal
Reviewed-by: kvn, coleenp, twisti, stefank

duke@435	1	/*
jrose@2639	2	* Copyright (c) 1997, 2011, Oracle and/or its affiliates. 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	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
stefank@2314	25	#ifndef SHARE_VM_CLASSFILE_JAVACLASSES_HPP
stefank@2314	26	#define SHARE_VM_CLASSFILE_JAVACLASSES_HPP
stefank@2314	27
stefank@2314	28	#include "classfile/systemDictionary.hpp"
stefank@2314	29	#include "jvmtifiles/jvmti.h"
stefank@2314	30	#include "oops/oop.hpp"
stefank@2314	31	#include "runtime/os.hpp"
stefank@2314	32	#include "utilities/utf8.hpp"
stefank@2314	33
duke@435	34	// Interface for manipulating the basic Java classes.
duke@435	35	//
duke@435	36	// All dependencies on layout of actual Java classes should be kept here.
duke@435	37	// If the layout of any of the classes above changes the offsets must be adjusted.
duke@435	38	//
duke@435	39	// For most classes we hardwire the offsets for performance reasons. In certain
duke@435	40	// cases (e.g. java.security.AccessControlContext) we compute the offsets at
duke@435	41	// startup since the layout here differs between JDK1.2 and JDK1.3.
duke@435	42	//
duke@435	43	// Note that fields (static and non-static) are arranged with oops before non-oops
duke@435	44	// on a per class basis. The offsets below have to reflect this ordering.
duke@435	45	//
duke@435	46	// When editing the layouts please update the check_offset verification code
duke@435	47	// correspondingly. The names in the enums must be identical to the actual field
duke@435	48	// names in order for the verification code to work.
duke@435	49
duke@435	50
duke@435	51	// Interface to java.lang.String objects
duke@435	52
duke@435	53	class java_lang_String : AllStatic {
duke@435	54	private:
duke@435	55	enum {
duke@435	56	hc_value_offset = 0,
jrose@567	57	hc_offset_offset = 1
jrose@567	58	//hc_count_offset = 2 -- not a word-scaled offset
jrose@567	59	//hc_hash_offset = 3 -- not a word-scaled offset
duke@435	60	};
duke@435	61
duke@435	62	static int value_offset;
duke@435	63	static int offset_offset;
duke@435	64	static int count_offset;
duke@435	65	static int hash_offset;
duke@435	66
duke@435	67	static Handle basic_create(int length, bool tenured, TRAPS);
duke@435	68	static Handle basic_create_from_unicode(jchar* unicode, int length, bool tenured, TRAPS);
duke@435	69
duke@435	70	static void set_value( oop string, typeArrayOop buffer) { string->obj_field_put(value_offset, (oop)buffer); }
duke@435	71	static void set_offset(oop string, int offset) { string->int_field_put(offset_offset, offset); }
duke@435	72	static void set_count( oop string, int count) { string->int_field_put(count_offset, count); }
duke@435	73
duke@435	74	public:
duke@435	75	// Instance creation
duke@435	76	static Handle create_from_unicode(jchar* unicode, int len, TRAPS);
duke@435	77	static Handle create_tenured_from_unicode(jchar* unicode, int len, TRAPS);
duke@435	78	static oop create_oop_from_unicode(jchar* unicode, int len, TRAPS);
duke@435	79	static Handle create_from_str(const char* utf8_str, TRAPS);
duke@435	80	static oop create_oop_from_str(const char* utf8_str, TRAPS);
coleenp@2497	81	static Handle create_from_symbol(Symbol* symbol, TRAPS);
duke@435	82	static Handle create_from_platform_dependent_str(const char* str, TRAPS);
duke@435	83	static Handle char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS);
duke@435	84
duke@435	85	static int value_offset_in_bytes() { return value_offset; }
duke@435	86	static int count_offset_in_bytes() { return count_offset; }
duke@435	87	static int offset_offset_in_bytes() { return offset_offset; }
duke@435	88	static int hash_offset_in_bytes() { return hash_offset; }
duke@435	89
duke@435	90	// Accessors
duke@435	91	static typeArrayOop value(oop java_string) {
duke@435	92	assert(is_instance(java_string), "must be java_string");
duke@435	93	return (typeArrayOop) java_string->obj_field(value_offset);
duke@435	94	}
duke@435	95	static int offset(oop java_string) {
duke@435	96	assert(is_instance(java_string), "must be java_string");
duke@435	97	return java_string->int_field(offset_offset);
duke@435	98	}
duke@435	99	static int length(oop java_string) {
duke@435	100	assert(is_instance(java_string), "must be java_string");
duke@435	101	return java_string->int_field(count_offset);
duke@435	102	}
duke@435	103	static int utf8_length(oop java_string);
duke@435	104
duke@435	105	// String converters
duke@435	106	static char* as_utf8_string(oop java_string);
sla@2331	107	static char* as_utf8_string(oop java_string, char* buf, int buflen);
duke@435	108	static char* as_utf8_string(oop java_string, int start, int len);
coleenp@457	109	static char* as_platform_dependent_str(Handle java_string, TRAPS);
duke@435	110	static jchar* as_unicode_string(oop java_string, int& length);
duke@435	111
duke@435	112	static bool equals(oop java_string, jchar* chars, int len);
duke@435	113
duke@435	114	// Conversion between '.' and '/' formats
duke@435	115	static Handle externalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '/', '.', THREAD); }
duke@435	116	static Handle internalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '.', '/', THREAD); }
duke@435	117
duke@435	118	// Conversion
coleenp@2497	119	static Symbol* as_symbol(Handle java_string, TRAPS);
coleenp@2497	120	static Symbol* as_symbol_or_null(oop java_string);
duke@435	121
duke@435	122	// Testers
duke@435	123	static bool is_instance(oop obj) {
never@1577	124	return obj != NULL && obj->klass() == SystemDictionary::String_klass();
duke@435	125	}
duke@435	126
duke@435	127	// Debugging
duke@435	128	static void print(Handle java_string, outputStream* st);
duke@435	129	friend class JavaClasses;
duke@435	130	};
duke@435	131
duke@435	132
duke@435	133	// Interface to java.lang.Class objects
duke@435	134
duke@435	135	class java_lang_Class : AllStatic {
duke@435	136	friend class VMStructs;
duke@435	137	private:
duke@435	138	// The fake offsets are added by the class loader when java.lang.Class is loaded
duke@435	139
duke@435	140	enum {
never@2658	141	hc_number_of_fake_oop_fields = 3,
never@2658	142	hc_number_of_fake_int_fields = 2
duke@435	143	};
duke@435	144
duke@435	145	static int klass_offset;
duke@435	146	static int resolved_constructor_offset;
duke@435	147	static int array_klass_offset;
duke@435	148	static int number_of_fake_oop_fields;
duke@435	149
never@2658	150	static int oop_size_offset;
never@2658	151	static int static_oop_field_count_offset;
never@2658	152
duke@435	153	static void compute_offsets();
duke@435	154	static bool offsets_computed;
duke@435	155	static int classRedefinedCount_offset;
acorn@949	156	static int parallelCapable_offset;
duke@435	157
duke@435	158	public:
duke@435	159	// Instance creation
duke@435	160	static oop create_mirror(KlassHandle k, TRAPS);
never@2658	161	static void fixup_mirror(KlassHandle k, TRAPS);
duke@435	162	static oop create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS);
duke@435	163	// Conversion
duke@435	164	static klassOop as_klassOop(oop java_class);
jrose@1100	165	static BasicType as_BasicType(oop java_class, klassOop* reference_klass = NULL);
jrose@1145	166	static BasicType as_BasicType(oop java_class, KlassHandle* reference_klass) {
jrose@1145	167	klassOop refk_oop = NULL;
jrose@1145	168	BasicType result = as_BasicType(java_class, &refk_oop);
jrose@1145	169	(*reference_klass) = KlassHandle(refk_oop);
jrose@1145	170	return result;
jrose@1145	171	}
coleenp@2497	172	static Symbol* as_signature(oop java_class, bool intern_if_not_found, TRAPS);
jrose@1100	173	static void print_signature(oop java_class, outputStream *st);
duke@435	174	// Testing
jrose@567	175	static bool is_instance(oop obj) {
never@1577	176	return obj != NULL && obj->klass() == SystemDictionary::Class_klass();
jrose@567	177	}
duke@435	178	static bool is_primitive(oop java_class);
duke@435	179	static BasicType primitive_type(oop java_class);
duke@435	180	static oop primitive_mirror(BasicType t);
duke@435	181	// JVM_NewInstance support
duke@435	182	static methodOop resolved_constructor(oop java_class);
duke@435	183	static void set_resolved_constructor(oop java_class, methodOop constructor);
duke@435	184	// JVM_NewArray support
duke@435	185	static klassOop array_klass(oop java_class);
duke@435	186	static void set_array_klass(oop java_class, klassOop klass);
duke@435	187	// compiler support for class operations
duke@435	188	static int klass_offset_in_bytes() { return klass_offset; }
duke@435	189	static int resolved_constructor_offset_in_bytes() { return resolved_constructor_offset; }
duke@435	190	static int array_klass_offset_in_bytes() { return array_klass_offset; }
duke@435	191	// Support for classRedefinedCount field
duke@435	192	static int classRedefinedCount(oop the_class_mirror);
duke@435	193	static void set_classRedefinedCount(oop the_class_mirror, int value);
acorn@949	194	// Support for parallelCapable field
acorn@949	195	static bool parallelCapable(oop the_class_mirror);
never@2658	196
never@2658	197	static int oop_size(oop java_class);
never@2658	198	static void set_oop_size(oop java_class, int size);
never@2658	199	static int static_oop_field_count(oop java_class);
never@2658	200	static void set_static_oop_field_count(oop java_class, int size);
never@2658	201
duke@435	202	// Debugging
duke@435	203	friend class JavaClasses;
duke@435	204	friend class instanceKlass; // verification code accesses offsets
duke@435	205	friend class ClassFileParser; // access to number_of_fake_fields
duke@435	206	};
duke@435	207
duke@435	208	// Interface to java.lang.Thread objects
duke@435	209
duke@435	210	class java_lang_Thread : AllStatic {
duke@435	211	private:
duke@435	212	// Note that for this class the layout changed between JDK1.2 and JDK1.3,
duke@435	213	// so we compute the offsets at startup rather than hard-wiring them.
duke@435	214	static int _name_offset;
duke@435	215	static int _group_offset;
duke@435	216	static int _contextClassLoader_offset;
duke@435	217	static int _inheritedAccessControlContext_offset;
duke@435	218	static int _priority_offset;
duke@435	219	static int _eetop_offset;
duke@435	220	static int _daemon_offset;
duke@435	221	static int _stillborn_offset;
duke@435	222	static int _stackSize_offset;
duke@435	223	static int _tid_offset;
duke@435	224	static int _thread_status_offset;
duke@435	225	static int _park_blocker_offset;
duke@435	226	static int _park_event_offset ;
duke@435	227
duke@435	228	static void compute_offsets();
duke@435	229
duke@435	230	public:
duke@435	231	// Instance creation
duke@435	232	static oop create();
duke@435	233	// Returns the JavaThread associated with the thread obj
duke@435	234	static JavaThread* thread(oop java_thread);
duke@435	235	// Set JavaThread for instance
duke@435	236	static void set_thread(oop java_thread, JavaThread* thread);
duke@435	237	// Name
duke@435	238	static typeArrayOop name(oop java_thread);
duke@435	239	static void set_name(oop java_thread, typeArrayOop name);
duke@435	240	// Priority
duke@435	241	static ThreadPriority priority(oop java_thread);
duke@435	242	static void set_priority(oop java_thread, ThreadPriority priority);
duke@435	243	// Thread group
duke@435	244	static oop threadGroup(oop java_thread);
duke@435	245	// Stillborn
duke@435	246	static bool is_stillborn(oop java_thread);
duke@435	247	static void set_stillborn(oop java_thread);
duke@435	248	// Alive (NOTE: this is not really a field, but provides the correct
duke@435	249	// definition without doing a Java call)
duke@435	250	static bool is_alive(oop java_thread);
duke@435	251	// Daemon
duke@435	252	static bool is_daemon(oop java_thread);
duke@435	253	static void set_daemon(oop java_thread);
duke@435	254	// Context ClassLoader
duke@435	255	static oop context_class_loader(oop java_thread);
duke@435	256	// Control context
duke@435	257	static oop inherited_access_control_context(oop java_thread);
duke@435	258	// Stack size hint
duke@435	259	static jlong stackSize(oop java_thread);
duke@435	260	// Thread ID
duke@435	261	static jlong thread_id(oop java_thread);
duke@435	262
duke@435	263	// Blocker object responsible for thread parking
duke@435	264	static oop park_blocker(oop java_thread);
duke@435	265
duke@435	266	// Pointer to type-stable park handler, encoded as jlong.
duke@435	267	// Should be set when apparently null
duke@435	268	// For details, see unsafe.cpp Unsafe_Unpark
duke@435	269	static jlong park_event(oop java_thread);
duke@435	270	static bool set_park_event(oop java_thread, jlong ptr);
duke@435	271
duke@435	272	// Java Thread Status for JVMTI and M&M use.
duke@435	273	// This thread status info is saved in threadStatus field of
duke@435	274	// java.lang.Thread java class.
duke@435	275	enum ThreadStatus {
duke@435	276	NEW = 0,
duke@435	277	RUNNABLE = JVMTI_THREAD_STATE_ALIVE + // runnable / running
duke@435	278	JVMTI_THREAD_STATE_RUNNABLE,
duke@435	279	SLEEPING = JVMTI_THREAD_STATE_ALIVE + // Thread.sleep()
duke@435	280	JVMTI_THREAD_STATE_WAITING +
duke@435	281	JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT +
duke@435	282	JVMTI_THREAD_STATE_SLEEPING,
duke@435	283	IN_OBJECT_WAIT = JVMTI_THREAD_STATE_ALIVE + // Object.wait()
duke@435	284	JVMTI_THREAD_STATE_WAITING +
duke@435	285	JVMTI_THREAD_STATE_WAITING_INDEFINITELY +
duke@435	286	JVMTI_THREAD_STATE_IN_OBJECT_WAIT,
duke@435	287	IN_OBJECT_WAIT_TIMED = JVMTI_THREAD_STATE_ALIVE + // Object.wait(long)
duke@435	288	JVMTI_THREAD_STATE_WAITING +
duke@435	289	JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT +
duke@435	290	JVMTI_THREAD_STATE_IN_OBJECT_WAIT,
duke@435	291	PARKED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park()
duke@435	292	JVMTI_THREAD_STATE_WAITING +
duke@435	293	JVMTI_THREAD_STATE_WAITING_INDEFINITELY +
duke@435	294	JVMTI_THREAD_STATE_PARKED,
duke@435	295	PARKED_TIMED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park(long)
duke@435	296	JVMTI_THREAD_STATE_WAITING +
duke@435	297	JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT +
duke@435	298	JVMTI_THREAD_STATE_PARKED,
duke@435	299	BLOCKED_ON_MONITOR_ENTER = JVMTI_THREAD_STATE_ALIVE + // (re-)entering a synchronization block
duke@435	300	JVMTI_THREAD_STATE_BLOCKED_ON_MONITOR_ENTER,
duke@435	301	TERMINATED = JVMTI_THREAD_STATE_TERMINATED
duke@435	302	};
duke@435	303	// Write thread status info to threadStatus field of java.lang.Thread.
duke@435	304	static void set_thread_status(oop java_thread_oop, ThreadStatus status);
duke@435	305	// Read thread status info from threadStatus field of java.lang.Thread.
duke@435	306	static ThreadStatus get_thread_status(oop java_thread_oop);
duke@435	307
duke@435	308	static const char* thread_status_name(oop java_thread_oop);
duke@435	309
duke@435	310	// Debugging
duke@435	311	friend class JavaClasses;
duke@435	312	};
duke@435	313
duke@435	314	// Interface to java.lang.ThreadGroup objects
duke@435	315
duke@435	316	class java_lang_ThreadGroup : AllStatic {
duke@435	317	private:
duke@435	318	static int _parent_offset;
duke@435	319	static int _name_offset;
duke@435	320	static int _threads_offset;
duke@435	321	static int _groups_offset;
duke@435	322	static int _maxPriority_offset;
duke@435	323	static int _destroyed_offset;
duke@435	324	static int _daemon_offset;
duke@435	325	static int _vmAllowSuspension_offset;
duke@435	326	static int _nthreads_offset;
duke@435	327	static int _ngroups_offset;
duke@435	328
duke@435	329	static void compute_offsets();
duke@435	330
duke@435	331	public:
duke@435	332	// parent ThreadGroup
duke@435	333	static oop parent(oop java_thread_group);
duke@435	334	// name
duke@435	335	static typeArrayOop name(oop java_thread_group);
duke@435	336	// ("name as oop" accessor is not necessary)
duke@435	337	// Number of threads in group
duke@435	338	static int nthreads(oop java_thread_group);
duke@435	339	// threads
duke@435	340	static objArrayOop threads(oop java_thread_group);
duke@435	341	// Number of threads in group
duke@435	342	static int ngroups(oop java_thread_group);
duke@435	343	// groups
duke@435	344	static objArrayOop groups(oop java_thread_group);
duke@435	345	// maxPriority in group
duke@435	346	static ThreadPriority maxPriority(oop java_thread_group);
duke@435	347	// Destroyed
duke@435	348	static bool is_destroyed(oop java_thread_group);
duke@435	349	// Daemon
duke@435	350	static bool is_daemon(oop java_thread_group);
duke@435	351	// vmAllowSuspension
duke@435	352	static bool is_vmAllowSuspension(oop java_thread_group);
duke@435	353	// Debugging
duke@435	354	friend class JavaClasses;
duke@435	355	};
duke@435	356
duke@435	357
duke@435	358
duke@435	359	// Interface to java.lang.Throwable objects
duke@435	360
duke@435	361	class java_lang_Throwable: AllStatic {
duke@435	362	friend class BacktraceBuilder;
duke@435	363
duke@435	364	private:
duke@435	365	// Offsets
duke@435	366	enum {
duke@435	367	hc_backtrace_offset = 0,
duke@435	368	hc_detailMessage_offset = 1,
duke@435	369	hc_cause_offset = 2, // New since 1.4
duke@435	370	hc_stackTrace_offset = 3 // New since 1.4
duke@435	371	};
duke@435	372	// Trace constants
duke@435	373	enum {
duke@435	374	trace_methods_offset = 0,
duke@435	375	trace_bcis_offset = 1,
duke@435	376	trace_next_offset = 2,
duke@435	377	trace_size = 3,
duke@435	378	trace_chunk_size = 32
duke@435	379	};
duke@435	380
duke@435	381	static int backtrace_offset;
duke@435	382	static int detailMessage_offset;
duke@435	383	static int cause_offset;
duke@435	384	static int stackTrace_offset;
duke@435	385
duke@435	386	// Printing
duke@435	387	static char* print_stack_element_to_buffer(methodOop method, int bci);
duke@435	388	static void print_to_stream(Handle stream, const char* str);
duke@435	389	// StackTrace (programmatic access, new since 1.4)
duke@435	390	static void clear_stacktrace(oop throwable);
duke@435	391	// No stack trace available
duke@435	392	static const char* no_stack_trace_message();
duke@435	393
duke@435	394	public:
duke@435	395	// Backtrace
duke@435	396	static oop backtrace(oop throwable);
duke@435	397	static void set_backtrace(oop throwable, oop value);
duke@435	398	// Needed by JVMTI to filter out this internal field.
duke@435	399	static int get_backtrace_offset() { return backtrace_offset;}
duke@435	400	static int get_detailMessage_offset() { return detailMessage_offset;}
duke@435	401	// Message
duke@435	402	static oop message(oop throwable);
duke@435	403	static oop message(Handle throwable);
duke@435	404	static void set_message(oop throwable, oop value);
duke@435	405	// Print stack trace stored in exception by call-back to Java
duke@435	406	// Note: this is no longer used in Merlin, but we still suppport
duke@435	407	// it for compatibility.
duke@435	408	static void print_stack_trace(oop throwable, oop print_stream);
duke@435	409	static void print_stack_element(Handle stream, methodOop method, int bci);
duke@435	410	static void print_stack_element(outputStream *st, methodOop method, int bci);
duke@435	411	static void print_stack_usage(Handle stream);
duke@435	412
duke@435	413	// Allocate space for backtrace (created but stack trace not filled in)
duke@435	414	static void allocate_backtrace(Handle throwable, TRAPS);
duke@435	415	// Fill in current stack trace for throwable with preallocated backtrace (no GC)
duke@435	416	static void fill_in_stack_trace_of_preallocated_backtrace(Handle throwable);
duke@435	417
duke@435	418	// Fill in current stack trace, can cause GC
duke@435	419	static void fill_in_stack_trace(Handle throwable, TRAPS);
duke@435	420	static void fill_in_stack_trace(Handle throwable);
duke@435	421	// Programmatic access to stack trace
duke@435	422	static oop get_stack_trace_element(oop throwable, int index, TRAPS);
duke@435	423	static int get_stack_trace_depth(oop throwable, TRAPS);
duke@435	424	// Printing
duke@435	425	static void print(oop throwable, outputStream* st);
duke@435	426	static void print(Handle throwable, outputStream* st);
duke@435	427	static void print_stack_trace(oop throwable, outputStream* st);
duke@435	428	// Debugging
duke@435	429	friend class JavaClasses;
duke@435	430	};
duke@435	431
duke@435	432
duke@435	433	// Interface to java.lang.reflect.AccessibleObject objects
duke@435	434
duke@435	435	class java_lang_reflect_AccessibleObject: AllStatic {
duke@435	436	private:
duke@435	437	// Note that to reduce dependencies on the JDK we compute these
duke@435	438	// offsets at run-time.
duke@435	439	static int override_offset;
duke@435	440
duke@435	441	static void compute_offsets();
duke@435	442
duke@435	443	public:
duke@435	444	// Accessors
duke@435	445	static jboolean override(oop reflect);
duke@435	446	static void set_override(oop reflect, jboolean value);
duke@435	447
duke@435	448	// Debugging
duke@435	449	friend class JavaClasses;
duke@435	450	};
duke@435	451
duke@435	452
duke@435	453	// Interface to java.lang.reflect.Method objects
duke@435	454
duke@435	455	class java_lang_reflect_Method : public java_lang_reflect_AccessibleObject {
duke@435	456	private:
duke@435	457	// Note that to reduce dependencies on the JDK we compute these
duke@435	458	// offsets at run-time.
duke@435	459	static int clazz_offset;
duke@435	460	static int name_offset;
duke@435	461	static int returnType_offset;
duke@435	462	static int parameterTypes_offset;
duke@435	463	static int exceptionTypes_offset;
duke@435	464	static int slot_offset;
duke@435	465	static int modifiers_offset;
duke@435	466	static int signature_offset;
duke@435	467	static int annotations_offset;
duke@435	468	static int parameter_annotations_offset;
duke@435	469	static int annotation_default_offset;
duke@435	470
duke@435	471	static void compute_offsets();
duke@435	472
duke@435	473	public:
duke@435	474	// Allocation
duke@435	475	static Handle create(TRAPS);
duke@435	476
duke@435	477	// Accessors
duke@435	478	static oop clazz(oop reflect);
duke@435	479	static void set_clazz(oop reflect, oop value);
duke@435	480
duke@435	481	static oop name(oop method);
duke@435	482	static void set_name(oop method, oop value);
duke@435	483
duke@435	484	static oop return_type(oop method);
duke@435	485	static void set_return_type(oop method, oop value);
duke@435	486
duke@435	487	static oop parameter_types(oop method);
duke@435	488	static void set_parameter_types(oop method, oop value);
duke@435	489
duke@435	490	static oop exception_types(oop method);
duke@435	491	static void set_exception_types(oop method, oop value);
duke@435	492
duke@435	493	static int slot(oop reflect);
duke@435	494	static void set_slot(oop reflect, int value);
duke@435	495
duke@435	496	static int modifiers(oop method);
duke@435	497	static void set_modifiers(oop method, int value);
duke@435	498
duke@435	499	static bool has_signature_field();
duke@435	500	static oop signature(oop method);
duke@435	501	static void set_signature(oop method, oop value);
duke@435	502
duke@435	503	static bool has_annotations_field();
duke@435	504	static oop annotations(oop method);
duke@435	505	static void set_annotations(oop method, oop value);
duke@435	506
duke@435	507	static bool has_parameter_annotations_field();
duke@435	508	static oop parameter_annotations(oop method);
duke@435	509	static void set_parameter_annotations(oop method, oop value);
duke@435	510
duke@435	511	static bool has_annotation_default_field();
duke@435	512	static oop annotation_default(oop method);
duke@435	513	static void set_annotation_default(oop method, oop value);
duke@435	514
duke@435	515	// Debugging
duke@435	516	friend class JavaClasses;
duke@435	517	};
duke@435	518
duke@435	519
duke@435	520	// Interface to java.lang.reflect.Constructor objects
duke@435	521
duke@435	522	class java_lang_reflect_Constructor : public java_lang_reflect_AccessibleObject {
duke@435	523	private:
duke@435	524	// Note that to reduce dependencies on the JDK we compute these
duke@435	525	// offsets at run-time.
duke@435	526	static int clazz_offset;
duke@435	527	static int parameterTypes_offset;
duke@435	528	static int exceptionTypes_offset;
duke@435	529	static int slot_offset;
duke@435	530	static int modifiers_offset;
duke@435	531	static int signature_offset;
duke@435	532	static int annotations_offset;
duke@435	533	static int parameter_annotations_offset;
duke@435	534
duke@435	535	static void compute_offsets();
duke@435	536
duke@435	537	public:
duke@435	538	// Allocation
duke@435	539	static Handle create(TRAPS);
duke@435	540
duke@435	541	// Accessors
duke@435	542	static oop clazz(oop reflect);
duke@435	543	static void set_clazz(oop reflect, oop value);
duke@435	544
duke@435	545	static oop parameter_types(oop constructor);
duke@435	546	static void set_parameter_types(oop constructor, oop value);
duke@435	547
duke@435	548	static oop exception_types(oop constructor);
duke@435	549	static void set_exception_types(oop constructor, oop value);
duke@435	550
duke@435	551	static int slot(oop reflect);
duke@435	552	static void set_slot(oop reflect, int value);
duke@435	553
duke@435	554	static int modifiers(oop constructor);
duke@435	555	static void set_modifiers(oop constructor, int value);
duke@435	556
duke@435	557	static bool has_signature_field();
duke@435	558	static oop signature(oop constructor);
duke@435	559	static void set_signature(oop constructor, oop value);
duke@435	560
duke@435	561	static bool has_annotations_field();
duke@435	562	static oop annotations(oop constructor);
duke@435	563	static void set_annotations(oop constructor, oop value);
duke@435	564
duke@435	565	static bool has_parameter_annotations_field();
duke@435	566	static oop parameter_annotations(oop method);
duke@435	567	static void set_parameter_annotations(oop method, oop value);
duke@435	568
duke@435	569	// Debugging
duke@435	570	friend class JavaClasses;
duke@435	571	};
duke@435	572
duke@435	573
duke@435	574	// Interface to java.lang.reflect.Field objects
duke@435	575
duke@435	576	class java_lang_reflect_Field : public java_lang_reflect_AccessibleObject {
duke@435	577	private:
duke@435	578	// Note that to reduce dependencies on the JDK we compute these
duke@435	579	// offsets at run-time.
duke@435	580	static int clazz_offset;
duke@435	581	static int name_offset;
duke@435	582	static int type_offset;
duke@435	583	static int slot_offset;
duke@435	584	static int modifiers_offset;
duke@435	585	static int signature_offset;
duke@435	586	static int annotations_offset;
duke@435	587
duke@435	588	static void compute_offsets();
duke@435	589
duke@435	590	public:
duke@435	591	// Allocation
duke@435	592	static Handle create(TRAPS);
duke@435	593
duke@435	594	// Accessors
duke@435	595	static oop clazz(oop reflect);
duke@435	596	static void set_clazz(oop reflect, oop value);
duke@435	597
duke@435	598	static oop name(oop field);
duke@435	599	static void set_name(oop field, oop value);
duke@435	600
duke@435	601	static oop type(oop field);
duke@435	602	static void set_type(oop field, oop value);
duke@435	603
duke@435	604	static int slot(oop reflect);
duke@435	605	static void set_slot(oop reflect, int value);
duke@435	606
duke@435	607	static int modifiers(oop field);
duke@435	608	static void set_modifiers(oop field, int value);
duke@435	609
duke@435	610	static bool has_signature_field();
duke@435	611	static oop signature(oop constructor);
duke@435	612	static void set_signature(oop constructor, oop value);
duke@435	613
duke@435	614	static bool has_annotations_field();
duke@435	615	static oop annotations(oop constructor);
duke@435	616	static void set_annotations(oop constructor, oop value);
duke@435	617
duke@435	618	static bool has_parameter_annotations_field();
duke@435	619	static oop parameter_annotations(oop method);
duke@435	620	static void set_parameter_annotations(oop method, oop value);
duke@435	621
duke@435	622	static bool has_annotation_default_field();
duke@435	623	static oop annotation_default(oop method);
duke@435	624	static void set_annotation_default(oop method, oop value);
duke@435	625
duke@435	626	// Debugging
duke@435	627	friend class JavaClasses;
duke@435	628	};
duke@435	629
duke@435	630	// Interface to sun.reflect.ConstantPool objects
duke@435	631	class sun_reflect_ConstantPool {
duke@435	632	private:
duke@435	633	// Note that to reduce dependencies on the JDK we compute these
duke@435	634	// offsets at run-time.
duke@435	635	static int _cp_oop_offset;
duke@435	636
duke@435	637	static void compute_offsets();
duke@435	638
duke@435	639	public:
duke@435	640	// Allocation
duke@435	641	static Handle create(TRAPS);
duke@435	642
duke@435	643	// Accessors
duke@435	644	static oop cp_oop(oop reflect);
duke@435	645	static void set_cp_oop(oop reflect, oop value);
duke@435	646	static int cp_oop_offset() {
duke@435	647	return _cp_oop_offset;
duke@435	648	}
duke@435	649
duke@435	650	// Debugging
duke@435	651	friend class JavaClasses;
duke@435	652	};
duke@435	653
duke@435	654	// Interface to sun.reflect.UnsafeStaticFieldAccessorImpl objects
duke@435	655	class sun_reflect_UnsafeStaticFieldAccessorImpl {
duke@435	656	private:
duke@435	657	static int _base_offset;
duke@435	658	static void compute_offsets();
duke@435	659
duke@435	660	public:
duke@435	661	static int base_offset() {
duke@435	662	return _base_offset;
duke@435	663	}
duke@435	664
duke@435	665	// Debugging
duke@435	666	friend class JavaClasses;
duke@435	667	};
duke@435	668
duke@435	669	// Interface to java.lang primitive type boxing objects:
duke@435	670	// - java.lang.Boolean
duke@435	671	// - java.lang.Character
duke@435	672	// - java.lang.Float
duke@435	673	// - java.lang.Double
duke@435	674	// - java.lang.Byte
duke@435	675	// - java.lang.Short
duke@435	676	// - java.lang.Integer
duke@435	677	// - java.lang.Long
duke@435	678
duke@435	679	// This could be separated out into 8 individual classes.
duke@435	680
duke@435	681	class java_lang_boxing_object: AllStatic {
duke@435	682	private:
duke@435	683	enum {
duke@435	684	hc_value_offset = 0
duke@435	685	};
duke@435	686	static int value_offset;
kvn@600	687	static int long_value_offset;
duke@435	688
jrose@567	689	static oop initialize_and_allocate(BasicType type, TRAPS);
duke@435	690	public:
duke@435	691	// Allocation. Returns a boxed value, or NULL for invalid type.
duke@435	692	static oop create(BasicType type, jvalue* value, TRAPS);
duke@435	693	// Accessors. Returns the basic type being boxed, or T_ILLEGAL for invalid oop.
duke@435	694	static BasicType get_value(oop box, jvalue* value);
duke@435	695	static BasicType set_value(oop box, jvalue* value);
jrose@567	696	static BasicType basic_type(oop box);
jrose@567	697	static bool is_instance(oop box) { return basic_type(box) != T_ILLEGAL; }
jrose@567	698	static bool is_instance(oop box, BasicType type) { return basic_type(box) == type; }
jrose@1100	699	static void print(oop box, outputStream* st) { jvalue value; print(get_value(box, &value), &value, st); }
jrose@1100	700	static void print(BasicType type, jvalue* value, outputStream* st);
duke@435	701
kvn@600	702	static int value_offset_in_bytes(BasicType type) {
kvn@600	703	return ( type == T_LONG || type == T_DOUBLE ) ? long_value_offset :
kvn@600	704	value_offset;
kvn@600	705	}
duke@435	706
duke@435	707	// Debugging
duke@435	708	friend class JavaClasses;
duke@435	709	};
duke@435	710
duke@435	711
duke@435	712
duke@435	713	// Interface to java.lang.ref.Reference objects
duke@435	714
duke@435	715	class java_lang_ref_Reference: AllStatic {
duke@435	716	public:
duke@435	717	enum {
duke@435	718	hc_referent_offset = 0,
duke@435	719	hc_queue_offset = 1,
duke@435	720	hc_next_offset = 2,
duke@435	721	hc_discovered_offset = 3 // Is not last, see SoftRefs.
duke@435	722	};
duke@435	723	enum {
duke@435	724	hc_static_lock_offset = 0,
duke@435	725	hc_static_pending_offset = 1
duke@435	726	};
duke@435	727
duke@435	728	static int referent_offset;
duke@435	729	static int queue_offset;
duke@435	730	static int next_offset;
duke@435	731	static int discovered_offset;
duke@435	732	static int static_lock_offset;
duke@435	733	static int static_pending_offset;
duke@435	734	static int number_of_fake_oop_fields;
duke@435	735
duke@435	736	// Accessors
coleenp@548	737	static oop referent(oop ref) {
coleenp@548	738	return ref->obj_field(referent_offset);
coleenp@548	739	}
coleenp@548	740	static void set_referent(oop ref, oop value) {
coleenp@548	741	ref->obj_field_put(referent_offset, value);
coleenp@548	742	}
coleenp@548	743	static void set_referent_raw(oop ref, oop value) {
coleenp@548	744	ref->obj_field_raw_put(referent_offset, value);
coleenp@548	745	}
coleenp@548	746	static HeapWord* referent_addr(oop ref) {
coleenp@548	747	return ref->obj_field_addr<HeapWord>(referent_offset);
coleenp@548	748	}
coleenp@548	749	static oop next(oop ref) {
coleenp@548	750	return ref->obj_field(next_offset);
coleenp@548	751	}
coleenp@548	752	static void set_next(oop ref, oop value) {
coleenp@548	753	ref->obj_field_put(next_offset, value);
coleenp@548	754	}
coleenp@548	755	static void set_next_raw(oop ref, oop value) {
coleenp@548	756	ref->obj_field_raw_put(next_offset, value);
coleenp@548	757	}
coleenp@548	758	static HeapWord* next_addr(oop ref) {
coleenp@548	759	return ref->obj_field_addr<HeapWord>(next_offset);
coleenp@548	760	}
coleenp@548	761	static oop discovered(oop ref) {
coleenp@548	762	return ref->obj_field(discovered_offset);
coleenp@548	763	}
coleenp@548	764	static void set_discovered(oop ref, oop value) {
coleenp@548	765	ref->obj_field_put(discovered_offset, value);
coleenp@548	766	}
coleenp@548	767	static void set_discovered_raw(oop ref, oop value) {
coleenp@548	768	ref->obj_field_raw_put(discovered_offset, value);
coleenp@548	769	}
coleenp@548	770	static HeapWord* discovered_addr(oop ref) {
coleenp@548	771	return ref->obj_field_addr<HeapWord>(discovered_offset);
coleenp@548	772	}
coleenp@548	773	// Accessors for statics
coleenp@548	774	static oop pending_list_lock();
coleenp@548	775	static oop pending_list();
duke@435	776
coleenp@548	777	static HeapWord* pending_list_addr();
duke@435	778	};
duke@435	779
duke@435	780
duke@435	781	// Interface to java.lang.ref.SoftReference objects
duke@435	782
duke@435	783	class java_lang_ref_SoftReference: public java_lang_ref_Reference {
duke@435	784	public:
duke@435	785	enum {
duke@435	786	// The timestamp is a long field and may need to be adjusted for alignment.
kvn@600	787	hc_timestamp_offset = hc_discovered_offset + 1
duke@435	788	};
duke@435	789	enum {
duke@435	790	hc_static_clock_offset = 0
duke@435	791	};
duke@435	792
duke@435	793	static int timestamp_offset;
duke@435	794	static int static_clock_offset;
duke@435	795
duke@435	796	// Accessors
duke@435	797	static jlong timestamp(oop ref);
duke@435	798
duke@435	799	// Accessors for statics
duke@435	800	static jlong clock();
duke@435	801	static void set_clock(jlong value);
duke@435	802	};
duke@435	803
duke@435	804
jrose@2639	805	// Interface to java.lang.invoke.MethodHandle objects
jrose@1145	806
jrose@1145	807	class MethodHandleEntry;
jrose@1145	808
jrose@2639	809	class java_lang_invoke_MethodHandle: AllStatic {
jrose@1145	810	friend class JavaClasses;
jrose@1145	811
jrose@1145	812	private:
jrose@1145	813	static int _vmentry_offset; // assembly code trampoline for MH
jrose@1145	814	static int _vmtarget_offset; // class-specific target reference
jrose@1145	815	static int _type_offset; // the MethodType of this MH
jrose@1145	816	static int _vmslots_offset; // OPTIONAL hoisted type.form.vmslots
jrose@1145	817
jrose@1145	818	static void compute_offsets();
jrose@1145	819
jrose@1145	820	public:
jrose@1145	821	// Accessors
jrose@1145	822	static oop type(oop mh);
jrose@1145	823	static void set_type(oop mh, oop mtype);
jrose@1145	824
jrose@1145	825	static oop vmtarget(oop mh);
jrose@1145	826	static void set_vmtarget(oop mh, oop target);
jrose@1145	827
jrose@1145	828	static MethodHandleEntry* vmentry(oop mh);
jrose@1145	829	static void set_vmentry(oop mh, MethodHandleEntry* data);
jrose@1145	830
jrose@1145	831	static int vmslots(oop mh);
jrose@1145	832	static void init_vmslots(oop mh);
jrose@1145	833	static int compute_vmslots(oop mh);
jrose@1145	834
jrose@1145	835	// Testers
jrose@1145	836	static bool is_subclass(klassOop klass) {
jrose@1145	837	return Klass::cast(klass)->is_subclass_of(SystemDictionary::MethodHandle_klass());
jrose@1145	838	}
jrose@1145	839	static bool is_instance(oop obj) {
jrose@1145	840	return obj != NULL && is_subclass(obj->klass());
jrose@1145	841	}
jrose@1145	842
jrose@1145	843	// Accessors for code generation:
jrose@1145	844	static int type_offset_in_bytes() { return _type_offset; }
jrose@1145	845	static int vmtarget_offset_in_bytes() { return _vmtarget_offset; }
jrose@1145	846	static int vmentry_offset_in_bytes() { return _vmentry_offset; }
jrose@1145	847	static int vmslots_offset_in_bytes() { return _vmslots_offset; }
jrose@1145	848	};
jrose@1145	849
jrose@2639	850	class java_lang_invoke_DirectMethodHandle: public java_lang_invoke_MethodHandle {
jrose@1145	851	friend class JavaClasses;
jrose@1145	852
jrose@1145	853	private:
jrose@1145	854	// _vmtarget_offset; // method or class or interface
jrose@1145	855	static int _vmindex_offset; // negative or vtable idx or itable idx
jrose@1145	856	static void compute_offsets();
jrose@1145	857
jrose@1145	858	public:
jrose@1145	859	// Accessors
jrose@1145	860	static int vmindex(oop mh);
jrose@1145	861	static void set_vmindex(oop mh, int index);
jrose@1145	862
jrose@1145	863	// Testers
jrose@1145	864	static bool is_subclass(klassOop klass) {
jrose@1145	865	return Klass::cast(klass)->is_subclass_of(SystemDictionary::DirectMethodHandle_klass());
jrose@1145	866	}
jrose@1145	867	static bool is_instance(oop obj) {
jrose@1145	868	return obj != NULL && is_subclass(obj->klass());
jrose@1145	869	}
jrose@1145	870
jrose@1145	871	// Accessors for code generation:
jrose@1145	872	static int vmindex_offset_in_bytes() { return _vmindex_offset; }
jrose@1145	873	};
jrose@1145	874
jrose@2639	875	class java_lang_invoke_BoundMethodHandle: public java_lang_invoke_MethodHandle {
jrose@1145	876	friend class JavaClasses;
jrose@1145	877
jrose@1145	878	private:
jrose@1145	879	static int _argument_offset; // argument value bound into this MH
jrose@1145	880	static int _vmargslot_offset; // relevant argument slot (<= vmslots)
jrose@1145	881	static void compute_offsets();
jrose@1145	882
jrose@1145	883	public:
jrose@1145	884	static oop argument(oop mh);
jrose@1145	885	static void set_argument(oop mh, oop ref);
jrose@1145	886
jrose@1145	887	static jint vmargslot(oop mh);
jrose@1145	888	static void set_vmargslot(oop mh, jint slot);
jrose@1145	889
jrose@1145	890	// Testers
jrose@1145	891	static bool is_subclass(klassOop klass) {
jrose@1145	892	return Klass::cast(klass)->is_subclass_of(SystemDictionary::BoundMethodHandle_klass());
jrose@1145	893	}
jrose@1145	894	static bool is_instance(oop obj) {
jrose@1145	895	return obj != NULL && is_subclass(obj->klass());
jrose@1145	896	}
jrose@1145	897
jrose@1145	898	static int argument_offset_in_bytes() { return _argument_offset; }
jrose@1145	899	static int vmargslot_offset_in_bytes() { return _vmargslot_offset; }
jrose@1145	900	};
jrose@1145	901
jrose@2639	902	class java_lang_invoke_AdapterMethodHandle: public java_lang_invoke_BoundMethodHandle {
jrose@1145	903	friend class JavaClasses;
jrose@1145	904
jrose@1145	905	private:
jrose@1145	906	static int _conversion_offset; // type of conversion to apply
jrose@1145	907	static void compute_offsets();
jrose@1145	908
jrose@1145	909	public:
jrose@1145	910	static int conversion(oop mh);
jrose@1145	911	static void set_conversion(oop mh, int conv);
jrose@1145	912
jrose@1145	913	// Testers
jrose@1145	914	static bool is_subclass(klassOop klass) {
jrose@1145	915	return Klass::cast(klass)->is_subclass_of(SystemDictionary::AdapterMethodHandle_klass());
jrose@1145	916	}
jrose@1145	917	static bool is_instance(oop obj) {
jrose@1145	918	return obj != NULL && is_subclass(obj->klass());
jrose@1145	919	}
jrose@1145	920
jrose@1145	921	// Relevant integer codes (keep these in synch. with MethodHandleNatives.Constants):
jrose@1145	922	enum {
jrose@1145	923	OP_RETYPE_ONLY = 0x0, // no argument changes; straight retype
jrose@1474	924	OP_RETYPE_RAW = 0x1, // straight retype, trusted (void->int, Object->T)
jrose@1474	925	OP_CHECK_CAST = 0x2, // ref-to-ref conversion; requires a Class argument
jrose@1474	926	OP_PRIM_TO_PRIM = 0x3, // converts from one primitive to another
jrose@1474	927	OP_REF_TO_PRIM = 0x4, // unboxes a wrapper to produce a primitive
jrose@1474	928	OP_PRIM_TO_REF = 0x5, // boxes a primitive into a wrapper (NYI)
jrose@1474	929	OP_SWAP_ARGS = 0x6, // swap arguments (vminfo is 2nd arg)
jrose@1474	930	OP_ROT_ARGS = 0x7, // rotate arguments (vminfo is displaced arg)
jrose@1474	931	OP_DUP_ARGS = 0x8, // duplicates one or more arguments (at TOS)
jrose@1474	932	OP_DROP_ARGS = 0x9, // remove one or more argument slots
jrose@1474	933	OP_COLLECT_ARGS = 0xA, // combine one or more arguments into a varargs (NYI)
jrose@1474	934	OP_SPREAD_ARGS = 0xB, // expand in place a varargs array (of known size)
jrose@1474	935	OP_FLYBY = 0xC, // operate first on reified argument list (NYI)
jrose@1474	936	OP_RICOCHET = 0xD, // run an adapter chain on the return value (NYI)
jrose@1474	937	CONV_OP_LIMIT = 0xE, // limit of CONV_OP enumeration
jrose@1145	938
jrose@1145	939	CONV_OP_MASK = 0xF00, // this nybble contains the conversion op field
jrose@1145	940	CONV_VMINFO_MASK = 0x0FF, // LSB is reserved for JVM use
jrose@1145	941	CONV_VMINFO_SHIFT = 0, // position of bits in CONV_VMINFO_MASK
jrose@1145	942	CONV_OP_SHIFT = 8, // position of bits in CONV_OP_MASK
jrose@1145	943	CONV_DEST_TYPE_SHIFT = 12, // byte 2 has the adapter BasicType (if needed)
jrose@1145	944	CONV_SRC_TYPE_SHIFT = 16, // byte 2 has the source BasicType (if needed)
jrose@1145	945	CONV_STACK_MOVE_SHIFT = 20, // high 12 bits give signed SP change
jrose@1145	946	CONV_STACK_MOVE_MASK = (1 << (32 - CONV_STACK_MOVE_SHIFT)) - 1
jrose@1145	947	};
jrose@1145	948
jrose@1145	949	static int conversion_offset_in_bytes() { return _conversion_offset; }
jrose@1145	950	};
jrose@1145	951
jrose@1145	952
jrose@2639	953	// Interface to java.lang.invoke.MemberName objects
jrose@1145	954	// (These are a private interface for Java code to query the class hierarchy.)
jrose@1145	955
jrose@2639	956	class java_lang_invoke_MemberName: AllStatic {
jrose@1145	957	friend class JavaClasses;
jrose@1145	958
jrose@1145	959	private:
jrose@2639	960	// From java.lang.invoke.MemberName:
jrose@1145	961	// private Class<?> clazz; // class in which the method is defined
jrose@1145	962	// private String name; // may be null if not yet materialized
jrose@1145	963	// private Object type; // may be null if not yet materialized
jrose@1145	964	// private int flags; // modifier bits; see reflect.Modifier
jrose@1145	965	// private Object vmtarget; // VM-specific target value
jrose@1145	966	// private int vmindex; // method index within class or interface
jrose@1145	967	static int _clazz_offset;
jrose@1145	968	static int _name_offset;
jrose@1145	969	static int _type_offset;
jrose@1145	970	static int _flags_offset;
jrose@1145	971	static int _vmtarget_offset;
jrose@1145	972	static int _vmindex_offset;
jrose@1145	973
jrose@1145	974	static void compute_offsets();
jrose@1145	975
jrose@1145	976	public:
jrose@1145	977	// Accessors
jrose@1145	978	static oop clazz(oop mname);
jrose@1145	979	static void set_clazz(oop mname, oop clazz);
jrose@1145	980
jrose@1145	981	static oop type(oop mname);
jrose@1145	982	static void set_type(oop mname, oop type);
jrose@1145	983
jrose@1145	984	static oop name(oop mname);
jrose@1145	985	static void set_name(oop mname, oop name);
jrose@1145	986
jrose@1145	987	static int flags(oop mname);
jrose@1145	988	static void set_flags(oop mname, int flags);
jrose@1145	989
jrose@1145	990	static int modifiers(oop mname) { return (u2) flags(mname); }
jrose@1145	991	static void set_modifiers(oop mname, int mods)
jrose@1145	992	{ set_flags(mname, (flags(mname) &~ (u2)-1) | (u2)mods); }
jrose@1145	993
jrose@1145	994	static oop vmtarget(oop mname);
jrose@1145	995	static void set_vmtarget(oop mname, oop target);
jrose@1145	996
jrose@1145	997	static int vmindex(oop mname);
jrose@1145	998	static void set_vmindex(oop mname, int index);
jrose@1145	999
jrose@1145	1000	// Testers
jrose@1145	1001	static bool is_subclass(klassOop klass) {
jrose@1145	1002	return Klass::cast(klass)->is_subclass_of(SystemDictionary::MemberName_klass());
jrose@1145	1003	}
jrose@1145	1004	static bool is_instance(oop obj) {
jrose@1145	1005	return obj != NULL && is_subclass(obj->klass());
jrose@1145	1006	}
jrose@1145	1007
jrose@1145	1008	// Relevant integer codes (keep these in synch. with MethodHandleNatives.Constants):
jrose@1145	1009	enum {
jrose@1145	1010	MN_IS_METHOD = 0x00010000, // method (not constructor)
jrose@1145	1011	MN_IS_CONSTRUCTOR = 0x00020000, // constructor
jrose@1145	1012	MN_IS_FIELD = 0x00040000, // field
jrose@1145	1013	MN_IS_TYPE = 0x00080000, // nested type
jrose@1145	1014	MN_SEARCH_SUPERCLASSES = 0x00100000, // for MHN.getMembers
jrose@1145	1015	MN_SEARCH_INTERFACES = 0x00200000, // for MHN.getMembers
jrose@1145	1016	VM_INDEX_UNINITIALIZED = -99
jrose@1145	1017	};
jrose@1145	1018
jrose@1145	1019	// Accessors for code generation:
jrose@1145	1020	static int clazz_offset_in_bytes() { return _clazz_offset; }
jrose@1145	1021	static int type_offset_in_bytes() { return _type_offset; }
jrose@1145	1022	static int name_offset_in_bytes() { return _name_offset; }
jrose@1145	1023	static int flags_offset_in_bytes() { return _flags_offset; }
jrose@1145	1024	static int vmtarget_offset_in_bytes() { return _vmtarget_offset; }
jrose@1145	1025	static int vmindex_offset_in_bytes() { return _vmindex_offset; }
jrose@1145	1026	};
jrose@1145	1027
jrose@1145	1028
jrose@2639	1029	// Interface to java.lang.invoke.MethodType objects
jrose@1145	1030
jrose@2639	1031	class java_lang_invoke_MethodType: AllStatic {
jrose@1145	1032	friend class JavaClasses;
jrose@1145	1033
jrose@1145	1034	private:
jrose@1145	1035	static int _rtype_offset;
jrose@1145	1036	static int _ptypes_offset;
jrose@1145	1037	static int _form_offset;
jrose@1145	1038
jrose@1145	1039	static void compute_offsets();
jrose@1145	1040
jrose@1145	1041	public:
jrose@1145	1042	// Accessors
jrose@1145	1043	static oop rtype(oop mt);
jrose@1145	1044	static objArrayOop ptypes(oop mt);
jrose@1145	1045	static oop form(oop mt);
jrose@1145	1046
jrose@1145	1047	static oop ptype(oop mt, int index);
twisti@1568	1048	static int ptype_count(oop mt);
jrose@1145	1049
coleenp@2497	1050	static Symbol* as_signature(oop mt, bool intern_if_not_found, TRAPS);
jrose@1145	1051	static void print_signature(oop mt, outputStream* st);
jrose@1145	1052
jrose@1145	1053	static bool is_instance(oop obj) {
jrose@1145	1054	return obj != NULL && obj->klass() == SystemDictionary::MethodType_klass();
jrose@1145	1055	}
jrose@1145	1056
jrose@1145	1057	// Accessors for code generation:
jrose@1145	1058	static int rtype_offset_in_bytes() { return _rtype_offset; }
jrose@1145	1059	static int ptypes_offset_in_bytes() { return _ptypes_offset; }
jrose@1145	1060	static int form_offset_in_bytes() { return _form_offset; }
jrose@1145	1061	};
jrose@1145	1062
jrose@2639	1063	class java_lang_invoke_MethodTypeForm: AllStatic {
jrose@1145	1064	friend class JavaClasses;
jrose@1145	1065
jrose@1145	1066	private:
jrose@1145	1067	static int _vmslots_offset; // number of argument slots needed
jrose@1145	1068	static int _erasedType_offset; // erasedType = canonical MethodType
jrose@2148	1069	static int _genericInvoker_offset; // genericInvoker = adapter for invokeGeneric
jrose@1145	1070
jrose@1145	1071	static void compute_offsets();
jrose@1145	1072
jrose@1145	1073	public:
jrose@1145	1074	// Accessors
jrose@1145	1075	static int vmslots(oop mtform);
jrose@1145	1076	static oop erasedType(oop mtform);
jrose@2148	1077	static oop genericInvoker(oop mtform);
jrose@1145	1078
jrose@1145	1079	// Accessors for code generation:
jrose@1145	1080	static int vmslots_offset_in_bytes() { return _vmslots_offset; }
jrose@1145	1081	static int erasedType_offset_in_bytes() { return _erasedType_offset; }
jrose@2148	1082	static int genericInvoker_offset_in_bytes() { return _genericInvoker_offset; }
jrose@1145	1083	};
jrose@1145	1084
jrose@1145	1085
jrose@2639	1086	// Interface to java.lang.invoke.CallSite objects
jrose@1161	1087
jrose@2639	1088	class java_lang_invoke_CallSite: AllStatic {
jrose@1161	1089	friend class JavaClasses;
jrose@1161	1090
jrose@1161	1091	private:
jrose@1161	1092	static int _target_offset;
jrose@1862	1093	static int _caller_method_offset;
jrose@1862	1094	static int _caller_bci_offset;
jrose@1161	1095
jrose@1161	1096	static void compute_offsets();
jrose@1161	1097
jrose@1161	1098	public:
jrose@1161	1099	// Accessors
jrose@1161	1100	static oop target(oop site);
jrose@1161	1101	static void set_target(oop site, oop target);
jrose@1161	1102
jrose@1862	1103	static oop caller_method(oop site);
jrose@1862	1104	static void set_caller_method(oop site, oop ref);
jrose@1862	1105
jrose@1862	1106	static jint caller_bci(oop site);
jrose@1862	1107	static void set_caller_bci(oop site, jint bci);
jrose@1161	1108
twisti@1570	1109	// Testers
twisti@1570	1110	static bool is_subclass(klassOop klass) {
twisti@1570	1111	return Klass::cast(klass)->is_subclass_of(SystemDictionary::CallSite_klass());
twisti@1570	1112	}
twisti@1570	1113	static bool is_instance(oop obj) {
twisti@1570	1114	return obj != NULL && is_subclass(obj->klass());
twisti@1570	1115	}
twisti@1570	1116
jrose@1161	1117	// Accessors for code generation:
jrose@1161	1118	static int target_offset_in_bytes() { return _target_offset; }
jrose@1862	1119	static int caller_method_offset_in_bytes() { return _caller_method_offset; }
jrose@1862	1120	static int caller_bci_offset_in_bytes() { return _caller_bci_offset; }
jrose@1161	1121	};
jrose@1145	1122
jrose@1145	1123
duke@435	1124	// Interface to java.security.AccessControlContext objects
duke@435	1125
duke@435	1126	class java_security_AccessControlContext: AllStatic {
duke@435	1127	private:
duke@435	1128	// Note that for this class the layout changed between JDK1.2 and JDK1.3,
duke@435	1129	// so we compute the offsets at startup rather than hard-wiring them.
duke@435	1130	static int _context_offset;
duke@435	1131	static int _privilegedContext_offset;
duke@435	1132	static int _isPrivileged_offset;
duke@435	1133
duke@435	1134	static void compute_offsets();
duke@435	1135	public:
duke@435	1136	static oop create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS);
duke@435	1137
duke@435	1138	// Debugging/initialization
duke@435	1139	friend class JavaClasses;
duke@435	1140	};
duke@435	1141
duke@435	1142
duke@435	1143	// Interface to java.lang.ClassLoader objects
duke@435	1144
duke@435	1145	class java_lang_ClassLoader : AllStatic {
duke@435	1146	private:
duke@435	1147	enum {
duke@435	1148	hc_parent_offset = 0
duke@435	1149	};
duke@435	1150
duke@435	1151	static int parent_offset;
duke@435	1152
duke@435	1153	public:
duke@435	1154	static oop parent(oop loader);
duke@435	1155
duke@435	1156	static bool is_trusted_loader(oop loader);
duke@435	1157
duke@435	1158	// Fix for 4474172
duke@435	1159	static oop non_reflection_class_loader(oop loader);
duke@435	1160
duke@435	1161	// Debugging
duke@435	1162	friend class JavaClasses;
duke@435	1163	};
duke@435	1164
duke@435	1165
duke@435	1166	// Interface to java.lang.System objects
duke@435	1167
duke@435	1168	class java_lang_System : AllStatic {
duke@435	1169	private:
duke@435	1170	enum {
duke@435	1171	hc_static_in_offset = 0,
duke@435	1172	hc_static_out_offset = 1,
duke@435	1173	hc_static_err_offset = 2
duke@435	1174	};
duke@435	1175
duke@435	1176	static int static_in_offset;
duke@435	1177	static int static_out_offset;
duke@435	1178	static int static_err_offset;
duke@435	1179
duke@435	1180	public:
duke@435	1181	static int in_offset_in_bytes();
duke@435	1182	static int out_offset_in_bytes();
duke@435	1183	static int err_offset_in_bytes();
duke@435	1184
duke@435	1185	// Debugging
duke@435	1186	friend class JavaClasses;
duke@435	1187	};
duke@435	1188
duke@435	1189
duke@435	1190	// Interface to java.lang.StackTraceElement objects
duke@435	1191
duke@435	1192	class java_lang_StackTraceElement: AllStatic {
duke@435	1193	private:
duke@435	1194	enum {
duke@435	1195	hc_declaringClass_offset = 0,
duke@435	1196	hc_methodName_offset = 1,
duke@435	1197	hc_fileName_offset = 2,
duke@435	1198	hc_lineNumber_offset = 3
duke@435	1199	};
duke@435	1200
duke@435	1201	static int declaringClass_offset;
duke@435	1202	static int methodName_offset;
duke@435	1203	static int fileName_offset;
duke@435	1204	static int lineNumber_offset;
duke@435	1205
duke@435	1206	public:
duke@435	1207	// Setters
duke@435	1208	static void set_declaringClass(oop element, oop value);
duke@435	1209	static void set_methodName(oop element, oop value);
duke@435	1210	static void set_fileName(oop element, oop value);
duke@435	1211	static void set_lineNumber(oop element, int value);
duke@435	1212
duke@435	1213	// Create an instance of StackTraceElement
duke@435	1214	static oop create(methodHandle m, int bci, TRAPS);
duke@435	1215
duke@435	1216	// Debugging
duke@435	1217	friend class JavaClasses;
duke@435	1218	};
duke@435	1219
duke@435	1220
duke@435	1221	// Interface to java.lang.AssertionStatusDirectives objects
duke@435	1222
duke@435	1223	class java_lang_AssertionStatusDirectives: AllStatic {
duke@435	1224	private:
duke@435	1225	enum {
duke@435	1226	hc_classes_offset,
duke@435	1227	hc_classEnabled_offset,
duke@435	1228	hc_packages_offset,
duke@435	1229	hc_packageEnabled_offset,
duke@435	1230	hc_deflt_offset
duke@435	1231	};
duke@435	1232
duke@435	1233	static int classes_offset;
duke@435	1234	static int classEnabled_offset;
duke@435	1235	static int packages_offset;
duke@435	1236	static int packageEnabled_offset;
duke@435	1237	static int deflt_offset;
duke@435	1238
duke@435	1239	public:
duke@435	1240	// Setters
duke@435	1241	static void set_classes(oop obj, oop val);
duke@435	1242	static void set_classEnabled(oop obj, oop val);
duke@435	1243	static void set_packages(oop obj, oop val);
duke@435	1244	static void set_packageEnabled(oop obj, oop val);
duke@435	1245	static void set_deflt(oop obj, bool val);
duke@435	1246	// Debugging
duke@435	1247	friend class JavaClasses;
duke@435	1248	};
duke@435	1249
duke@435	1250
duke@435	1251	class java_nio_Buffer: AllStatic {
duke@435	1252	private:
duke@435	1253	static int _limit_offset;
duke@435	1254
duke@435	1255	public:
duke@435	1256	static int limit_offset();
duke@435	1257	static void compute_offsets();
duke@435	1258	};
duke@435	1259
duke@435	1260	class sun_misc_AtomicLongCSImpl: AllStatic {
duke@435	1261	private:
duke@435	1262	static int _value_offset;
duke@435	1263
duke@435	1264	public:
duke@435	1265	static int value_offset();
duke@435	1266	static void compute_offsets();
duke@435	1267	};
duke@435	1268
duke@435	1269	class java_util_concurrent_locks_AbstractOwnableSynchronizer : AllStatic {
duke@435	1270	private:
duke@435	1271	static int _owner_offset;
duke@435	1272	public:
duke@435	1273	static void initialize(TRAPS);
duke@435	1274	static oop get_owner_threadObj(oop obj);
duke@435	1275	};
duke@435	1276
duke@435	1277	// Interface to hard-coded offset checking
duke@435	1278
duke@435	1279	class JavaClasses : AllStatic {
duke@435	1280	private:
duke@435	1281	static bool check_offset(const char *klass_name, int offset, const char *field_name, const char* field_sig) PRODUCT_RETURN0;
duke@435	1282	static bool check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) PRODUCT_RETURN0;
jrose@567	1283	static bool check_constant(const char *klass_name, int constant, const char *field_name, const char* field_sig) PRODUCT_RETURN0;
duke@435	1284	public:
duke@435	1285	static void compute_hard_coded_offsets();
duke@435	1286	static void compute_offsets();
duke@435	1287	static void check_offsets() PRODUCT_RETURN;
duke@435	1288	};
stefank@2314	1289
stefank@2314	1290	#endif // SHARE_VM_CLASSFILE_JAVACLASSES_HPP