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src/share/vm/classfile/javaClasses.hpp@df1347358fe6 (annotated)

src/share/vm/classfile/javaClasses.hpp

Mon, 07 Mar 2011 16:03:28 -0500

author

coleenp

date

Mon, 07 Mar 2011 16:03:28 -0500

changeset 2618

df1347358fe6

parent 2497

3582bf76420e

child 2639

8033953d67ff

permissions

-rw-r--r--

7024584: Symbol printouts shouldnt be under PrintGCDetails
Summary: Put symbol printing under Verbose and WizardMode so you can get this information if you really want it.
Reviewed-by: phh, stefank, never, dholmes, jcoomes

duke@435	1	/*
stefank@2314	2	* Copyright (c) 1997, 2010, 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 {
duke@435	141	hc_klass_offset = 0,
duke@435	142	hc_array_klass_offset = 1,
duke@435	143	hc_resolved_constructor_offset = 2,
duke@435	144	hc_number_of_fake_oop_fields = 3
duke@435	145	};
duke@435	146
duke@435	147	static int klass_offset;
duke@435	148	static int resolved_constructor_offset;
duke@435	149	static int array_klass_offset;
duke@435	150	static int number_of_fake_oop_fields;
duke@435	151
duke@435	152	static void compute_offsets();
duke@435	153	static bool offsets_computed;
duke@435	154	static int classRedefinedCount_offset;
acorn@949	155	static int parallelCapable_offset;
duke@435	156
duke@435	157	public:
duke@435	158	// Instance creation
duke@435	159	static oop create_mirror(KlassHandle k, TRAPS);
duke@435	160	static oop create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS);
duke@435	161	// Conversion
duke@435	162	static klassOop as_klassOop(oop java_class);
jrose@1100	163	static BasicType as_BasicType(oop java_class, klassOop* reference_klass = NULL);
jrose@1145	164	static BasicType as_BasicType(oop java_class, KlassHandle* reference_klass) {
jrose@1145	165	klassOop refk_oop = NULL;
jrose@1145	166	BasicType result = as_BasicType(java_class, &refk_oop);
jrose@1145	167	(*reference_klass) = KlassHandle(refk_oop);
jrose@1145	168	return result;
jrose@1145	169	}
coleenp@2497	170	static Symbol* as_signature(oop java_class, bool intern_if_not_found, TRAPS);
jrose@1100	171	static void print_signature(oop java_class, outputStream *st);
duke@435	172	// Testing
jrose@567	173	static bool is_instance(oop obj) {
never@1577	174	return obj != NULL && obj->klass() == SystemDictionary::Class_klass();
jrose@567	175	}
duke@435	176	static bool is_primitive(oop java_class);
duke@435	177	static BasicType primitive_type(oop java_class);
duke@435	178	static oop primitive_mirror(BasicType t);
duke@435	179	// JVM_NewInstance support
duke@435	180	static methodOop resolved_constructor(oop java_class);
duke@435	181	static void set_resolved_constructor(oop java_class, methodOop constructor);
duke@435	182	// JVM_NewArray support
duke@435	183	static klassOop array_klass(oop java_class);
duke@435	184	static void set_array_klass(oop java_class, klassOop klass);
duke@435	185	// compiler support for class operations
duke@435	186	static int klass_offset_in_bytes() { return klass_offset; }
duke@435	187	static int resolved_constructor_offset_in_bytes() { return resolved_constructor_offset; }
duke@435	188	static int array_klass_offset_in_bytes() { return array_klass_offset; }
duke@435	189	// Support for classRedefinedCount field
duke@435	190	static int classRedefinedCount(oop the_class_mirror);
duke@435	191	static void set_classRedefinedCount(oop the_class_mirror, int value);
acorn@949	192	// Support for parallelCapable field
acorn@949	193	static bool parallelCapable(oop the_class_mirror);
duke@435	194	// Debugging
duke@435	195	friend class JavaClasses;
duke@435	196	friend class instanceKlass; // verification code accesses offsets
duke@435	197	friend class ClassFileParser; // access to number_of_fake_fields
duke@435	198	};
duke@435	199
duke@435	200	// Interface to java.lang.Thread objects
duke@435	201
duke@435	202	class java_lang_Thread : AllStatic {
duke@435	203	private:
duke@435	204	// Note that for this class the layout changed between JDK1.2 and JDK1.3,
duke@435	205	// so we compute the offsets at startup rather than hard-wiring them.
duke@435	206	static int _name_offset;
duke@435	207	static int _group_offset;
duke@435	208	static int _contextClassLoader_offset;
duke@435	209	static int _inheritedAccessControlContext_offset;
duke@435	210	static int _priority_offset;
duke@435	211	static int _eetop_offset;
duke@435	212	static int _daemon_offset;
duke@435	213	static int _stillborn_offset;
duke@435	214	static int _stackSize_offset;
duke@435	215	static int _tid_offset;
duke@435	216	static int _thread_status_offset;
duke@435	217	static int _park_blocker_offset;
duke@435	218	static int _park_event_offset ;
duke@435	219
duke@435	220	static void compute_offsets();
duke@435	221
duke@435	222	public:
duke@435	223	// Instance creation
duke@435	224	static oop create();
duke@435	225	// Returns the JavaThread associated with the thread obj
duke@435	226	static JavaThread* thread(oop java_thread);
duke@435	227	// Set JavaThread for instance
duke@435	228	static void set_thread(oop java_thread, JavaThread* thread);
duke@435	229	// Name
duke@435	230	static typeArrayOop name(oop java_thread);
duke@435	231	static void set_name(oop java_thread, typeArrayOop name);
duke@435	232	// Priority
duke@435	233	static ThreadPriority priority(oop java_thread);
duke@435	234	static void set_priority(oop java_thread, ThreadPriority priority);
duke@435	235	// Thread group
duke@435	236	static oop threadGroup(oop java_thread);
duke@435	237	// Stillborn
duke@435	238	static bool is_stillborn(oop java_thread);
duke@435	239	static void set_stillborn(oop java_thread);
duke@435	240	// Alive (NOTE: this is not really a field, but provides the correct
duke@435	241	// definition without doing a Java call)
duke@435	242	static bool is_alive(oop java_thread);
duke@435	243	// Daemon
duke@435	244	static bool is_daemon(oop java_thread);
duke@435	245	static void set_daemon(oop java_thread);
duke@435	246	// Context ClassLoader
duke@435	247	static oop context_class_loader(oop java_thread);
duke@435	248	// Control context
duke@435	249	static oop inherited_access_control_context(oop java_thread);
duke@435	250	// Stack size hint
duke@435	251	static jlong stackSize(oop java_thread);
duke@435	252	// Thread ID
duke@435	253	static jlong thread_id(oop java_thread);
duke@435	254
duke@435	255	// Blocker object responsible for thread parking
duke@435	256	static oop park_blocker(oop java_thread);
duke@435	257
duke@435	258	// Pointer to type-stable park handler, encoded as jlong.
duke@435	259	// Should be set when apparently null
duke@435	260	// For details, see unsafe.cpp Unsafe_Unpark
duke@435	261	static jlong park_event(oop java_thread);
duke@435	262	static bool set_park_event(oop java_thread, jlong ptr);
duke@435	263
duke@435	264	// Java Thread Status for JVMTI and M&M use.
duke@435	265	// This thread status info is saved in threadStatus field of
duke@435	266	// java.lang.Thread java class.
duke@435	267	enum ThreadStatus {
duke@435	268	NEW = 0,
duke@435	269	RUNNABLE = JVMTI_THREAD_STATE_ALIVE + // runnable / running
duke@435	270	JVMTI_THREAD_STATE_RUNNABLE,
duke@435	271	SLEEPING = JVMTI_THREAD_STATE_ALIVE + // Thread.sleep()
duke@435	272	JVMTI_THREAD_STATE_WAITING +
duke@435	273	JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT +
duke@435	274	JVMTI_THREAD_STATE_SLEEPING,
duke@435	275	IN_OBJECT_WAIT = JVMTI_THREAD_STATE_ALIVE + // Object.wait()
duke@435	276	JVMTI_THREAD_STATE_WAITING +
duke@435	277	JVMTI_THREAD_STATE_WAITING_INDEFINITELY +
duke@435	278	JVMTI_THREAD_STATE_IN_OBJECT_WAIT,
duke@435	279	IN_OBJECT_WAIT_TIMED = JVMTI_THREAD_STATE_ALIVE + // Object.wait(long)
duke@435	280	JVMTI_THREAD_STATE_WAITING +
duke@435	281	JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT +
duke@435	282	JVMTI_THREAD_STATE_IN_OBJECT_WAIT,
duke@435	283	PARKED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park()
duke@435	284	JVMTI_THREAD_STATE_WAITING +
duke@435	285	JVMTI_THREAD_STATE_WAITING_INDEFINITELY +
duke@435	286	JVMTI_THREAD_STATE_PARKED,
duke@435	287	PARKED_TIMED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park(long)
duke@435	288	JVMTI_THREAD_STATE_WAITING +
duke@435	289	JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT +
duke@435	290	JVMTI_THREAD_STATE_PARKED,
duke@435	291	BLOCKED_ON_MONITOR_ENTER = JVMTI_THREAD_STATE_ALIVE + // (re-)entering a synchronization block
duke@435	292	JVMTI_THREAD_STATE_BLOCKED_ON_MONITOR_ENTER,
duke@435	293	TERMINATED = JVMTI_THREAD_STATE_TERMINATED
duke@435	294	};
duke@435	295	// Write thread status info to threadStatus field of java.lang.Thread.
duke@435	296	static void set_thread_status(oop java_thread_oop, ThreadStatus status);
duke@435	297	// Read thread status info from threadStatus field of java.lang.Thread.
duke@435	298	static ThreadStatus get_thread_status(oop java_thread_oop);
duke@435	299
duke@435	300	static const char* thread_status_name(oop java_thread_oop);
duke@435	301
duke@435	302	// Debugging
duke@435	303	friend class JavaClasses;
duke@435	304	};
duke@435	305
duke@435	306	// Interface to java.lang.ThreadGroup objects
duke@435	307
duke@435	308	class java_lang_ThreadGroup : AllStatic {
duke@435	309	private:
duke@435	310	static int _parent_offset;
duke@435	311	static int _name_offset;
duke@435	312	static int _threads_offset;
duke@435	313	static int _groups_offset;
duke@435	314	static int _maxPriority_offset;
duke@435	315	static int _destroyed_offset;
duke@435	316	static int _daemon_offset;
duke@435	317	static int _vmAllowSuspension_offset;
duke@435	318	static int _nthreads_offset;
duke@435	319	static int _ngroups_offset;
duke@435	320
duke@435	321	static void compute_offsets();
duke@435	322
duke@435	323	public:
duke@435	324	// parent ThreadGroup
duke@435	325	static oop parent(oop java_thread_group);
duke@435	326	// name
duke@435	327	static typeArrayOop name(oop java_thread_group);
duke@435	328	// ("name as oop" accessor is not necessary)
duke@435	329	// Number of threads in group
duke@435	330	static int nthreads(oop java_thread_group);
duke@435	331	// threads
duke@435	332	static objArrayOop threads(oop java_thread_group);
duke@435	333	// Number of threads in group
duke@435	334	static int ngroups(oop java_thread_group);
duke@435	335	// groups
duke@435	336	static objArrayOop groups(oop java_thread_group);
duke@435	337	// maxPriority in group
duke@435	338	static ThreadPriority maxPriority(oop java_thread_group);
duke@435	339	// Destroyed
duke@435	340	static bool is_destroyed(oop java_thread_group);
duke@435	341	// Daemon
duke@435	342	static bool is_daemon(oop java_thread_group);
duke@435	343	// vmAllowSuspension
duke@435	344	static bool is_vmAllowSuspension(oop java_thread_group);
duke@435	345	// Debugging
duke@435	346	friend class JavaClasses;
duke@435	347	};
duke@435	348
duke@435	349
duke@435	350
duke@435	351	// Interface to java.lang.Throwable objects
duke@435	352
duke@435	353	class java_lang_Throwable: AllStatic {
duke@435	354	friend class BacktraceBuilder;
duke@435	355
duke@435	356	private:
duke@435	357	// Offsets
duke@435	358	enum {
duke@435	359	hc_backtrace_offset = 0,
duke@435	360	hc_detailMessage_offset = 1,
duke@435	361	hc_cause_offset = 2, // New since 1.4
duke@435	362	hc_stackTrace_offset = 3 // New since 1.4
duke@435	363	};
duke@435	364	// Trace constants
duke@435	365	enum {
duke@435	366	trace_methods_offset = 0,
duke@435	367	trace_bcis_offset = 1,
duke@435	368	trace_next_offset = 2,
duke@435	369	trace_size = 3,
duke@435	370	trace_chunk_size = 32
duke@435	371	};
duke@435	372
duke@435	373	static int backtrace_offset;
duke@435	374	static int detailMessage_offset;
duke@435	375	static int cause_offset;
duke@435	376	static int stackTrace_offset;
duke@435	377
duke@435	378	// Printing
duke@435	379	static char* print_stack_element_to_buffer(methodOop method, int bci);
duke@435	380	static void print_to_stream(Handle stream, const char* str);
duke@435	381	// StackTrace (programmatic access, new since 1.4)
duke@435	382	static void clear_stacktrace(oop throwable);
duke@435	383	// No stack trace available
duke@435	384	static const char* no_stack_trace_message();
duke@435	385
duke@435	386	public:
duke@435	387	// Backtrace
duke@435	388	static oop backtrace(oop throwable);
duke@435	389	static void set_backtrace(oop throwable, oop value);
duke@435	390	// Needed by JVMTI to filter out this internal field.
duke@435	391	static int get_backtrace_offset() { return backtrace_offset;}
duke@435	392	static int get_detailMessage_offset() { return detailMessage_offset;}
duke@435	393	// Message
duke@435	394	static oop message(oop throwable);
duke@435	395	static oop message(Handle throwable);
duke@435	396	static void set_message(oop throwable, oop value);
duke@435	397	// Print stack trace stored in exception by call-back to Java
duke@435	398	// Note: this is no longer used in Merlin, but we still suppport
duke@435	399	// it for compatibility.
duke@435	400	static void print_stack_trace(oop throwable, oop print_stream);
duke@435	401	static void print_stack_element(Handle stream, methodOop method, int bci);
duke@435	402	static void print_stack_element(outputStream *st, methodOop method, int bci);
duke@435	403	static void print_stack_usage(Handle stream);
duke@435	404
duke@435	405	// Allocate space for backtrace (created but stack trace not filled in)
duke@435	406	static void allocate_backtrace(Handle throwable, TRAPS);
duke@435	407	// Fill in current stack trace for throwable with preallocated backtrace (no GC)
duke@435	408	static void fill_in_stack_trace_of_preallocated_backtrace(Handle throwable);
duke@435	409
duke@435	410	// Fill in current stack trace, can cause GC
duke@435	411	static void fill_in_stack_trace(Handle throwable, TRAPS);
duke@435	412	static void fill_in_stack_trace(Handle throwable);
duke@435	413	// Programmatic access to stack trace
duke@435	414	static oop get_stack_trace_element(oop throwable, int index, TRAPS);
duke@435	415	static int get_stack_trace_depth(oop throwable, TRAPS);
duke@435	416	// Printing
duke@435	417	static void print(oop throwable, outputStream* st);
duke@435	418	static void print(Handle throwable, outputStream* st);
duke@435	419	static void print_stack_trace(oop throwable, outputStream* st);
duke@435	420	// Debugging
duke@435	421	friend class JavaClasses;
duke@435	422	};
duke@435	423
duke@435	424
duke@435	425	// Interface to java.lang.reflect.AccessibleObject objects
duke@435	426
duke@435	427	class java_lang_reflect_AccessibleObject: AllStatic {
duke@435	428	private:
duke@435	429	// Note that to reduce dependencies on the JDK we compute these
duke@435	430	// offsets at run-time.
duke@435	431	static int override_offset;
duke@435	432
duke@435	433	static void compute_offsets();
duke@435	434
duke@435	435	public:
duke@435	436	// Accessors
duke@435	437	static jboolean override(oop reflect);
duke@435	438	static void set_override(oop reflect, jboolean value);
duke@435	439
duke@435	440	// Debugging
duke@435	441	friend class JavaClasses;
duke@435	442	};
duke@435	443
duke@435	444
duke@435	445	// Interface to java.lang.reflect.Method objects
duke@435	446
duke@435	447	class java_lang_reflect_Method : public java_lang_reflect_AccessibleObject {
duke@435	448	private:
duke@435	449	// Note that to reduce dependencies on the JDK we compute these
duke@435	450	// offsets at run-time.
duke@435	451	static int clazz_offset;
duke@435	452	static int name_offset;
duke@435	453	static int returnType_offset;
duke@435	454	static int parameterTypes_offset;
duke@435	455	static int exceptionTypes_offset;
duke@435	456	static int slot_offset;
duke@435	457	static int modifiers_offset;
duke@435	458	static int signature_offset;
duke@435	459	static int annotations_offset;
duke@435	460	static int parameter_annotations_offset;
duke@435	461	static int annotation_default_offset;
duke@435	462
duke@435	463	static void compute_offsets();
duke@435	464
duke@435	465	public:
duke@435	466	// Allocation
duke@435	467	static Handle create(TRAPS);
duke@435	468
duke@435	469	// Accessors
duke@435	470	static oop clazz(oop reflect);
duke@435	471	static void set_clazz(oop reflect, oop value);
duke@435	472
duke@435	473	static oop name(oop method);
duke@435	474	static void set_name(oop method, oop value);
duke@435	475
duke@435	476	static oop return_type(oop method);
duke@435	477	static void set_return_type(oop method, oop value);
duke@435	478
duke@435	479	static oop parameter_types(oop method);
duke@435	480	static void set_parameter_types(oop method, oop value);
duke@435	481
duke@435	482	static oop exception_types(oop method);
duke@435	483	static void set_exception_types(oop method, oop value);
duke@435	484
duke@435	485	static int slot(oop reflect);
duke@435	486	static void set_slot(oop reflect, int value);
duke@435	487
duke@435	488	static int modifiers(oop method);
duke@435	489	static void set_modifiers(oop method, int value);
duke@435	490
duke@435	491	static bool has_signature_field();
duke@435	492	static oop signature(oop method);
duke@435	493	static void set_signature(oop method, oop value);
duke@435	494
duke@435	495	static bool has_annotations_field();
duke@435	496	static oop annotations(oop method);
duke@435	497	static void set_annotations(oop method, oop value);
duke@435	498
duke@435	499	static bool has_parameter_annotations_field();
duke@435	500	static oop parameter_annotations(oop method);
duke@435	501	static void set_parameter_annotations(oop method, oop value);
duke@435	502
duke@435	503	static bool has_annotation_default_field();
duke@435	504	static oop annotation_default(oop method);
duke@435	505	static void set_annotation_default(oop method, oop value);
duke@435	506
duke@435	507	// Debugging
duke@435	508	friend class JavaClasses;
duke@435	509	};
duke@435	510
duke@435	511
duke@435	512	// Interface to java.lang.reflect.Constructor objects
duke@435	513
duke@435	514	class java_lang_reflect_Constructor : public java_lang_reflect_AccessibleObject {
duke@435	515	private:
duke@435	516	// Note that to reduce dependencies on the JDK we compute these
duke@435	517	// offsets at run-time.
duke@435	518	static int clazz_offset;
duke@435	519	static int parameterTypes_offset;
duke@435	520	static int exceptionTypes_offset;
duke@435	521	static int slot_offset;
duke@435	522	static int modifiers_offset;
duke@435	523	static int signature_offset;
duke@435	524	static int annotations_offset;
duke@435	525	static int parameter_annotations_offset;
duke@435	526
duke@435	527	static void compute_offsets();
duke@435	528
duke@435	529	public:
duke@435	530	// Allocation
duke@435	531	static Handle create(TRAPS);
duke@435	532
duke@435	533	// Accessors
duke@435	534	static oop clazz(oop reflect);
duke@435	535	static void set_clazz(oop reflect, oop value);
duke@435	536
duke@435	537	static oop parameter_types(oop constructor);
duke@435	538	static void set_parameter_types(oop constructor, oop value);
duke@435	539
duke@435	540	static oop exception_types(oop constructor);
duke@435	541	static void set_exception_types(oop constructor, oop value);
duke@435	542
duke@435	543	static int slot(oop reflect);
duke@435	544	static void set_slot(oop reflect, int value);
duke@435	545
duke@435	546	static int modifiers(oop constructor);
duke@435	547	static void set_modifiers(oop constructor, int value);
duke@435	548
duke@435	549	static bool has_signature_field();
duke@435	550	static oop signature(oop constructor);
duke@435	551	static void set_signature(oop constructor, oop value);
duke@435	552
duke@435	553	static bool has_annotations_field();
duke@435	554	static oop annotations(oop constructor);
duke@435	555	static void set_annotations(oop constructor, oop value);
duke@435	556
duke@435	557	static bool has_parameter_annotations_field();
duke@435	558	static oop parameter_annotations(oop method);
duke@435	559	static void set_parameter_annotations(oop method, oop value);
duke@435	560
duke@435	561	// Debugging
duke@435	562	friend class JavaClasses;
duke@435	563	};
duke@435	564
duke@435	565
duke@435	566	// Interface to java.lang.reflect.Field objects
duke@435	567
duke@435	568	class java_lang_reflect_Field : public java_lang_reflect_AccessibleObject {
duke@435	569	private:
duke@435	570	// Note that to reduce dependencies on the JDK we compute these
duke@435	571	// offsets at run-time.
duke@435	572	static int clazz_offset;
duke@435	573	static int name_offset;
duke@435	574	static int type_offset;
duke@435	575	static int slot_offset;
duke@435	576	static int modifiers_offset;
duke@435	577	static int signature_offset;
duke@435	578	static int annotations_offset;
duke@435	579
duke@435	580	static void compute_offsets();
duke@435	581
duke@435	582	public:
duke@435	583	// Allocation
duke@435	584	static Handle create(TRAPS);
duke@435	585
duke@435	586	// Accessors
duke@435	587	static oop clazz(oop reflect);
duke@435	588	static void set_clazz(oop reflect, oop value);
duke@435	589
duke@435	590	static oop name(oop field);
duke@435	591	static void set_name(oop field, oop value);
duke@435	592
duke@435	593	static oop type(oop field);
duke@435	594	static void set_type(oop field, oop value);
duke@435	595
duke@435	596	static int slot(oop reflect);
duke@435	597	static void set_slot(oop reflect, int value);
duke@435	598
duke@435	599	static int modifiers(oop field);
duke@435	600	static void set_modifiers(oop field, int value);
duke@435	601
duke@435	602	static bool has_signature_field();
duke@435	603	static oop signature(oop constructor);
duke@435	604	static void set_signature(oop constructor, oop value);
duke@435	605
duke@435	606	static bool has_annotations_field();
duke@435	607	static oop annotations(oop constructor);
duke@435	608	static void set_annotations(oop constructor, oop value);
duke@435	609
duke@435	610	static bool has_parameter_annotations_field();
duke@435	611	static oop parameter_annotations(oop method);
duke@435	612	static void set_parameter_annotations(oop method, oop value);
duke@435	613
duke@435	614	static bool has_annotation_default_field();
duke@435	615	static oop annotation_default(oop method);
duke@435	616	static void set_annotation_default(oop method, oop value);
duke@435	617
duke@435	618	// Debugging
duke@435	619	friend class JavaClasses;
duke@435	620	};
duke@435	621
duke@435	622	// Interface to sun.reflect.ConstantPool objects
duke@435	623	class sun_reflect_ConstantPool {
duke@435	624	private:
duke@435	625	// Note that to reduce dependencies on the JDK we compute these
duke@435	626	// offsets at run-time.
duke@435	627	static int _cp_oop_offset;
duke@435	628
duke@435	629	static void compute_offsets();
duke@435	630
duke@435	631	public:
duke@435	632	// Allocation
duke@435	633	static Handle create(TRAPS);
duke@435	634
duke@435	635	// Accessors
duke@435	636	static oop cp_oop(oop reflect);
duke@435	637	static void set_cp_oop(oop reflect, oop value);
duke@435	638	static int cp_oop_offset() {
duke@435	639	return _cp_oop_offset;
duke@435	640	}
duke@435	641
duke@435	642	// Debugging
duke@435	643	friend class JavaClasses;
duke@435	644	};
duke@435	645
duke@435	646	// Interface to sun.reflect.UnsafeStaticFieldAccessorImpl objects
duke@435	647	class sun_reflect_UnsafeStaticFieldAccessorImpl {
duke@435	648	private:
duke@435	649	static int _base_offset;
duke@435	650	static void compute_offsets();
duke@435	651
duke@435	652	public:
duke@435	653	static int base_offset() {
duke@435	654	return _base_offset;
duke@435	655	}
duke@435	656
duke@435	657	// Debugging
duke@435	658	friend class JavaClasses;
duke@435	659	};
duke@435	660
duke@435	661	// Interface to java.lang primitive type boxing objects:
duke@435	662	// - java.lang.Boolean
duke@435	663	// - java.lang.Character
duke@435	664	// - java.lang.Float
duke@435	665	// - java.lang.Double
duke@435	666	// - java.lang.Byte
duke@435	667	// - java.lang.Short
duke@435	668	// - java.lang.Integer
duke@435	669	// - java.lang.Long
duke@435	670
duke@435	671	// This could be separated out into 8 individual classes.
duke@435	672
duke@435	673	class java_lang_boxing_object: AllStatic {
duke@435	674	private:
duke@435	675	enum {
duke@435	676	hc_value_offset = 0
duke@435	677	};
duke@435	678	static int value_offset;
kvn@600	679	static int long_value_offset;
duke@435	680
jrose@567	681	static oop initialize_and_allocate(BasicType type, TRAPS);
duke@435	682	public:
duke@435	683	// Allocation. Returns a boxed value, or NULL for invalid type.
duke@435	684	static oop create(BasicType type, jvalue* value, TRAPS);
duke@435	685	// Accessors. Returns the basic type being boxed, or T_ILLEGAL for invalid oop.
duke@435	686	static BasicType get_value(oop box, jvalue* value);
duke@435	687	static BasicType set_value(oop box, jvalue* value);
jrose@567	688	static BasicType basic_type(oop box);
jrose@567	689	static bool is_instance(oop box) { return basic_type(box) != T_ILLEGAL; }
jrose@567	690	static bool is_instance(oop box, BasicType type) { return basic_type(box) == type; }
jrose@1100	691	static void print(oop box, outputStream* st) { jvalue value; print(get_value(box, &value), &value, st); }
jrose@1100	692	static void print(BasicType type, jvalue* value, outputStream* st);
duke@435	693
kvn@600	694	static int value_offset_in_bytes(BasicType type) {
kvn@600	695	return ( type == T_LONG || type == T_DOUBLE ) ? long_value_offset :
kvn@600	696	value_offset;
kvn@600	697	}
duke@435	698
duke@435	699	// Debugging
duke@435	700	friend class JavaClasses;
duke@435	701	};
duke@435	702
duke@435	703
duke@435	704
duke@435	705	// Interface to java.lang.ref.Reference objects
duke@435	706
duke@435	707	class java_lang_ref_Reference: AllStatic {
duke@435	708	public:
duke@435	709	enum {
duke@435	710	hc_referent_offset = 0,
duke@435	711	hc_queue_offset = 1,
duke@435	712	hc_next_offset = 2,
duke@435	713	hc_discovered_offset = 3 // Is not last, see SoftRefs.
duke@435	714	};
duke@435	715	enum {
duke@435	716	hc_static_lock_offset = 0,
duke@435	717	hc_static_pending_offset = 1
duke@435	718	};
duke@435	719
duke@435	720	static int referent_offset;
duke@435	721	static int queue_offset;
duke@435	722	static int next_offset;
duke@435	723	static int discovered_offset;
duke@435	724	static int static_lock_offset;
duke@435	725	static int static_pending_offset;
duke@435	726	static int number_of_fake_oop_fields;
duke@435	727
duke@435	728	// Accessors
coleenp@548	729	static oop referent(oop ref) {
coleenp@548	730	return ref->obj_field(referent_offset);
coleenp@548	731	}
coleenp@548	732	static void set_referent(oop ref, oop value) {
coleenp@548	733	ref->obj_field_put(referent_offset, value);
coleenp@548	734	}
coleenp@548	735	static void set_referent_raw(oop ref, oop value) {
coleenp@548	736	ref->obj_field_raw_put(referent_offset, value);
coleenp@548	737	}
coleenp@548	738	static HeapWord* referent_addr(oop ref) {
coleenp@548	739	return ref->obj_field_addr<HeapWord>(referent_offset);
coleenp@548	740	}
coleenp@548	741	static oop next(oop ref) {
coleenp@548	742	return ref->obj_field(next_offset);
coleenp@548	743	}
coleenp@548	744	static void set_next(oop ref, oop value) {
coleenp@548	745	ref->obj_field_put(next_offset, value);
coleenp@548	746	}
coleenp@548	747	static void set_next_raw(oop ref, oop value) {
coleenp@548	748	ref->obj_field_raw_put(next_offset, value);
coleenp@548	749	}
coleenp@548	750	static HeapWord* next_addr(oop ref) {
coleenp@548	751	return ref->obj_field_addr<HeapWord>(next_offset);
coleenp@548	752	}
coleenp@548	753	static oop discovered(oop ref) {
coleenp@548	754	return ref->obj_field(discovered_offset);
coleenp@548	755	}
coleenp@548	756	static void set_discovered(oop ref, oop value) {
coleenp@548	757	ref->obj_field_put(discovered_offset, value);
coleenp@548	758	}
coleenp@548	759	static void set_discovered_raw(oop ref, oop value) {
coleenp@548	760	ref->obj_field_raw_put(discovered_offset, value);
coleenp@548	761	}
coleenp@548	762	static HeapWord* discovered_addr(oop ref) {
coleenp@548	763	return ref->obj_field_addr<HeapWord>(discovered_offset);
coleenp@548	764	}
coleenp@548	765	// Accessors for statics
coleenp@548	766	static oop pending_list_lock();
coleenp@548	767	static oop pending_list();
duke@435	768
coleenp@548	769	static HeapWord* pending_list_addr();
duke@435	770	};
duke@435	771
duke@435	772
duke@435	773	// Interface to java.lang.ref.SoftReference objects
duke@435	774
duke@435	775	class java_lang_ref_SoftReference: public java_lang_ref_Reference {
duke@435	776	public:
duke@435	777	enum {
duke@435	778	// The timestamp is a long field and may need to be adjusted for alignment.
kvn@600	779	hc_timestamp_offset = hc_discovered_offset + 1
duke@435	780	};
duke@435	781	enum {
duke@435	782	hc_static_clock_offset = 0
duke@435	783	};
duke@435	784
duke@435	785	static int timestamp_offset;
duke@435	786	static int static_clock_offset;
duke@435	787
duke@435	788	// Accessors
duke@435	789	static jlong timestamp(oop ref);
duke@435	790
duke@435	791	// Accessors for statics
duke@435	792	static jlong clock();
duke@435	793	static void set_clock(jlong value);
duke@435	794	};
duke@435	795
duke@435	796
jrose@1145	797	// Interface to java.dyn.MethodHandle objects
jrose@1145	798
jrose@1145	799	class MethodHandleEntry;
jrose@1145	800
jrose@1145	801	class java_dyn_MethodHandle: AllStatic {
jrose@1145	802	friend class JavaClasses;
jrose@1145	803
jrose@1145	804	private:
jrose@1145	805	static int _vmentry_offset; // assembly code trampoline for MH
jrose@1145	806	static int _vmtarget_offset; // class-specific target reference
jrose@1145	807	static int _type_offset; // the MethodType of this MH
jrose@1145	808	static int _vmslots_offset; // OPTIONAL hoisted type.form.vmslots
jrose@1145	809
jrose@1145	810	static void compute_offsets();
jrose@1145	811
jrose@1145	812	public:
jrose@1145	813	// Accessors
jrose@1145	814	static oop type(oop mh);
jrose@1145	815	static void set_type(oop mh, oop mtype);
jrose@1145	816
jrose@1145	817	static oop vmtarget(oop mh);
jrose@1145	818	static void set_vmtarget(oop mh, oop target);
jrose@1145	819
jrose@1145	820	static MethodHandleEntry* vmentry(oop mh);
jrose@1145	821	static void set_vmentry(oop mh, MethodHandleEntry* data);
jrose@1145	822
jrose@1145	823	static int vmslots(oop mh);
jrose@1145	824	static void init_vmslots(oop mh);
jrose@1145	825	static int compute_vmslots(oop mh);
jrose@1145	826
jrose@1145	827	// Testers
jrose@1145	828	static bool is_subclass(klassOop klass) {
jrose@1145	829	return Klass::cast(klass)->is_subclass_of(SystemDictionary::MethodHandle_klass());
jrose@1145	830	}
jrose@1145	831	static bool is_instance(oop obj) {
jrose@1145	832	return obj != NULL && is_subclass(obj->klass());
jrose@1145	833	}
jrose@1145	834
jrose@1145	835	// Accessors for code generation:
jrose@1145	836	static int type_offset_in_bytes() { return _type_offset; }
jrose@1145	837	static int vmtarget_offset_in_bytes() { return _vmtarget_offset; }
jrose@1145	838	static int vmentry_offset_in_bytes() { return _vmentry_offset; }
jrose@1145	839	static int vmslots_offset_in_bytes() { return _vmslots_offset; }
jrose@1145	840	};
jrose@1145	841
jrose@1145	842	class sun_dyn_DirectMethodHandle: public java_dyn_MethodHandle {
jrose@1145	843	friend class JavaClasses;
jrose@1145	844
jrose@1145	845	private:
jrose@1145	846	// _vmtarget_offset; // method or class or interface
jrose@1145	847	static int _vmindex_offset; // negative or vtable idx or itable idx
jrose@1145	848	static void compute_offsets();
jrose@1145	849
jrose@1145	850	public:
jrose@1145	851	// Accessors
jrose@1145	852	static int vmindex(oop mh);
jrose@1145	853	static void set_vmindex(oop mh, int index);
jrose@1145	854
jrose@1145	855	// Testers
jrose@1145	856	static bool is_subclass(klassOop klass) {
jrose@1145	857	return Klass::cast(klass)->is_subclass_of(SystemDictionary::DirectMethodHandle_klass());
jrose@1145	858	}
jrose@1145	859	static bool is_instance(oop obj) {
jrose@1145	860	return obj != NULL && is_subclass(obj->klass());
jrose@1145	861	}
jrose@1145	862
jrose@1145	863	// Accessors for code generation:
jrose@1145	864	static int vmindex_offset_in_bytes() { return _vmindex_offset; }
jrose@1145	865	};
jrose@1145	866
jrose@1145	867	class sun_dyn_BoundMethodHandle: public java_dyn_MethodHandle {
jrose@1145	868	friend class JavaClasses;
jrose@1145	869
jrose@1145	870	private:
jrose@1145	871	static int _argument_offset; // argument value bound into this MH
jrose@1145	872	static int _vmargslot_offset; // relevant argument slot (<= vmslots)
jrose@1145	873	static void compute_offsets();
jrose@1145	874
jrose@1145	875	public:
jrose@1145	876	static oop argument(oop mh);
jrose@1145	877	static void set_argument(oop mh, oop ref);
jrose@1145	878
jrose@1145	879	static jint vmargslot(oop mh);
jrose@1145	880	static void set_vmargslot(oop mh, jint slot);
jrose@1145	881
jrose@1145	882	// Testers
jrose@1145	883	static bool is_subclass(klassOop klass) {
jrose@1145	884	return Klass::cast(klass)->is_subclass_of(SystemDictionary::BoundMethodHandle_klass());
jrose@1145	885	}
jrose@1145	886	static bool is_instance(oop obj) {
jrose@1145	887	return obj != NULL && is_subclass(obj->klass());
jrose@1145	888	}
jrose@1145	889
jrose@1145	890	static int argument_offset_in_bytes() { return _argument_offset; }
jrose@1145	891	static int vmargslot_offset_in_bytes() { return _vmargslot_offset; }
jrose@1145	892	};
jrose@1145	893
jrose@1145	894	class sun_dyn_AdapterMethodHandle: public sun_dyn_BoundMethodHandle {
jrose@1145	895	friend class JavaClasses;
jrose@1145	896
jrose@1145	897	private:
jrose@1145	898	static int _conversion_offset; // type of conversion to apply
jrose@1145	899	static void compute_offsets();
jrose@1145	900
jrose@1145	901	public:
jrose@1145	902	static int conversion(oop mh);
jrose@1145	903	static void set_conversion(oop mh, int conv);
jrose@1145	904
jrose@1145	905	// Testers
jrose@1145	906	static bool is_subclass(klassOop klass) {
jrose@1145	907	return Klass::cast(klass)->is_subclass_of(SystemDictionary::AdapterMethodHandle_klass());
jrose@1145	908	}
jrose@1145	909	static bool is_instance(oop obj) {
jrose@1145	910	return obj != NULL && is_subclass(obj->klass());
jrose@1145	911	}
jrose@1145	912
jrose@1145	913	// Relevant integer codes (keep these in synch. with MethodHandleNatives.Constants):
jrose@1145	914	enum {
jrose@1145	915	OP_RETYPE_ONLY = 0x0, // no argument changes; straight retype
jrose@1474	916	OP_RETYPE_RAW = 0x1, // straight retype, trusted (void->int, Object->T)
jrose@1474	917	OP_CHECK_CAST = 0x2, // ref-to-ref conversion; requires a Class argument
jrose@1474	918	OP_PRIM_TO_PRIM = 0x3, // converts from one primitive to another
jrose@1474	919	OP_REF_TO_PRIM = 0x4, // unboxes a wrapper to produce a primitive
jrose@1474	920	OP_PRIM_TO_REF = 0x5, // boxes a primitive into a wrapper (NYI)
jrose@1474	921	OP_SWAP_ARGS = 0x6, // swap arguments (vminfo is 2nd arg)
jrose@1474	922	OP_ROT_ARGS = 0x7, // rotate arguments (vminfo is displaced arg)
jrose@1474	923	OP_DUP_ARGS = 0x8, // duplicates one or more arguments (at TOS)
jrose@1474	924	OP_DROP_ARGS = 0x9, // remove one or more argument slots
jrose@1474	925	OP_COLLECT_ARGS = 0xA, // combine one or more arguments into a varargs (NYI)
jrose@1474	926	OP_SPREAD_ARGS = 0xB, // expand in place a varargs array (of known size)
jrose@1474	927	OP_FLYBY = 0xC, // operate first on reified argument list (NYI)
jrose@1474	928	OP_RICOCHET = 0xD, // run an adapter chain on the return value (NYI)
jrose@1474	929	CONV_OP_LIMIT = 0xE, // limit of CONV_OP enumeration
jrose@1145	930
jrose@1145	931	CONV_OP_MASK = 0xF00, // this nybble contains the conversion op field
jrose@1145	932	CONV_VMINFO_MASK = 0x0FF, // LSB is reserved for JVM use
jrose@1145	933	CONV_VMINFO_SHIFT = 0, // position of bits in CONV_VMINFO_MASK
jrose@1145	934	CONV_OP_SHIFT = 8, // position of bits in CONV_OP_MASK
jrose@1145	935	CONV_DEST_TYPE_SHIFT = 12, // byte 2 has the adapter BasicType (if needed)
jrose@1145	936	CONV_SRC_TYPE_SHIFT = 16, // byte 2 has the source BasicType (if needed)
jrose@1145	937	CONV_STACK_MOVE_SHIFT = 20, // high 12 bits give signed SP change
jrose@1145	938	CONV_STACK_MOVE_MASK = (1 << (32 - CONV_STACK_MOVE_SHIFT)) - 1
jrose@1145	939	};
jrose@1145	940
jrose@1145	941	static int conversion_offset_in_bytes() { return _conversion_offset; }
jrose@1145	942	};
jrose@1145	943
jrose@1145	944
jrose@1145	945	// Interface to sun.dyn.MemberName objects
jrose@1145	946	// (These are a private interface for Java code to query the class hierarchy.)
jrose@1145	947
jrose@1145	948	class sun_dyn_MemberName: AllStatic {
jrose@1145	949	friend class JavaClasses;
jrose@1145	950
jrose@1145	951	private:
jrose@1145	952	// From java.dyn.MemberName:
jrose@1145	953	// private Class<?> clazz; // class in which the method is defined
jrose@1145	954	// private String name; // may be null if not yet materialized
jrose@1145	955	// private Object type; // may be null if not yet materialized
jrose@1145	956	// private int flags; // modifier bits; see reflect.Modifier
jrose@1145	957	// private Object vmtarget; // VM-specific target value
jrose@1145	958	// private int vmindex; // method index within class or interface
jrose@1145	959	static int _clazz_offset;
jrose@1145	960	static int _name_offset;
jrose@1145	961	static int _type_offset;
jrose@1145	962	static int _flags_offset;
jrose@1145	963	static int _vmtarget_offset;
jrose@1145	964	static int _vmindex_offset;
jrose@1145	965
jrose@1145	966	static void compute_offsets();
jrose@1145	967
jrose@1145	968	public:
jrose@1145	969	// Accessors
jrose@1145	970	static oop clazz(oop mname);
jrose@1145	971	static void set_clazz(oop mname, oop clazz);
jrose@1145	972
jrose@1145	973	static oop type(oop mname);
jrose@1145	974	static void set_type(oop mname, oop type);
jrose@1145	975
jrose@1145	976	static oop name(oop mname);
jrose@1145	977	static void set_name(oop mname, oop name);
jrose@1145	978
jrose@1145	979	static int flags(oop mname);
jrose@1145	980	static void set_flags(oop mname, int flags);
jrose@1145	981
jrose@1145	982	static int modifiers(oop mname) { return (u2) flags(mname); }
jrose@1145	983	static void set_modifiers(oop mname, int mods)
jrose@1145	984	{ set_flags(mname, (flags(mname) &~ (u2)-1) | (u2)mods); }
jrose@1145	985
jrose@1145	986	static oop vmtarget(oop mname);
jrose@1145	987	static void set_vmtarget(oop mname, oop target);
jrose@1145	988
jrose@1145	989	static int vmindex(oop mname);
jrose@1145	990	static void set_vmindex(oop mname, int index);
jrose@1145	991
jrose@1145	992	// Testers
jrose@1145	993	static bool is_subclass(klassOop klass) {
jrose@1145	994	return Klass::cast(klass)->is_subclass_of(SystemDictionary::MemberName_klass());
jrose@1145	995	}
jrose@1145	996	static bool is_instance(oop obj) {
jrose@1145	997	return obj != NULL && is_subclass(obj->klass());
jrose@1145	998	}
jrose@1145	999
jrose@1145	1000	// Relevant integer codes (keep these in synch. with MethodHandleNatives.Constants):
jrose@1145	1001	enum {
jrose@1145	1002	MN_IS_METHOD = 0x00010000, // method (not constructor)
jrose@1145	1003	MN_IS_CONSTRUCTOR = 0x00020000, // constructor
jrose@1145	1004	MN_IS_FIELD = 0x00040000, // field
jrose@1145	1005	MN_IS_TYPE = 0x00080000, // nested type
jrose@1145	1006	MN_SEARCH_SUPERCLASSES = 0x00100000, // for MHN.getMembers
jrose@1145	1007	MN_SEARCH_INTERFACES = 0x00200000, // for MHN.getMembers
jrose@1145	1008	VM_INDEX_UNINITIALIZED = -99
jrose@1145	1009	};
jrose@1145	1010
jrose@1145	1011	// Accessors for code generation:
jrose@1145	1012	static int clazz_offset_in_bytes() { return _clazz_offset; }
jrose@1145	1013	static int type_offset_in_bytes() { return _type_offset; }
jrose@1145	1014	static int name_offset_in_bytes() { return _name_offset; }
jrose@1145	1015	static int flags_offset_in_bytes() { return _flags_offset; }
jrose@1145	1016	static int vmtarget_offset_in_bytes() { return _vmtarget_offset; }
jrose@1145	1017	static int vmindex_offset_in_bytes() { return _vmindex_offset; }
jrose@1145	1018	};
jrose@1145	1019
jrose@1145	1020
jrose@1145	1021	// Interface to java.dyn.MethodType objects
jrose@1145	1022
jrose@1145	1023	class java_dyn_MethodType: AllStatic {
jrose@1145	1024	friend class JavaClasses;
jrose@1145	1025
jrose@1145	1026	private:
jrose@1145	1027	static int _rtype_offset;
jrose@1145	1028	static int _ptypes_offset;
jrose@1145	1029	static int _form_offset;
jrose@1145	1030
jrose@1145	1031	static void compute_offsets();
jrose@1145	1032
jrose@1145	1033	public:
jrose@1145	1034	// Accessors
jrose@1145	1035	static oop rtype(oop mt);
jrose@1145	1036	static objArrayOop ptypes(oop mt);
jrose@1145	1037	static oop form(oop mt);
jrose@1145	1038
jrose@1145	1039	static oop ptype(oop mt, int index);
twisti@1568	1040	static int ptype_count(oop mt);
jrose@1145	1041
coleenp@2497	1042	static Symbol* as_signature(oop mt, bool intern_if_not_found, TRAPS);
jrose@1145	1043	static void print_signature(oop mt, outputStream* st);
jrose@1145	1044
jrose@1145	1045	static bool is_instance(oop obj) {
jrose@1145	1046	return obj != NULL && obj->klass() == SystemDictionary::MethodType_klass();
jrose@1145	1047	}
jrose@1145	1048
jrose@1145	1049	// Accessors for code generation:
jrose@1145	1050	static int rtype_offset_in_bytes() { return _rtype_offset; }
jrose@1145	1051	static int ptypes_offset_in_bytes() { return _ptypes_offset; }
jrose@1145	1052	static int form_offset_in_bytes() { return _form_offset; }
jrose@1145	1053	};
jrose@1145	1054
jrose@1145	1055	class java_dyn_MethodTypeForm: AllStatic {
jrose@1145	1056	friend class JavaClasses;
jrose@1145	1057
jrose@1145	1058	private:
jrose@1145	1059	static int _vmslots_offset; // number of argument slots needed
jrose@1145	1060	static int _erasedType_offset; // erasedType = canonical MethodType
jrose@2148	1061	static int _genericInvoker_offset; // genericInvoker = adapter for invokeGeneric
jrose@1145	1062
jrose@1145	1063	static void compute_offsets();
jrose@1145	1064
jrose@1145	1065	public:
jrose@1145	1066	// Accessors
jrose@1145	1067	static int vmslots(oop mtform);
jrose@1145	1068	static oop erasedType(oop mtform);
jrose@2148	1069	static oop genericInvoker(oop mtform);
jrose@1145	1070
jrose@1145	1071	// Accessors for code generation:
jrose@1145	1072	static int vmslots_offset_in_bytes() { return _vmslots_offset; }
jrose@1145	1073	static int erasedType_offset_in_bytes() { return _erasedType_offset; }
jrose@2148	1074	static int genericInvoker_offset_in_bytes() { return _genericInvoker_offset; }
jrose@1145	1075	};
jrose@1145	1076
jrose@1145	1077
jrose@1494	1078	// Interface to java.dyn.CallSite objects
jrose@1161	1079
jrose@1494	1080	class java_dyn_CallSite: AllStatic {
jrose@1161	1081	friend class JavaClasses;
jrose@1161	1082
jrose@1161	1083	private:
jrose@1161	1084	static int _target_offset;
jrose@1862	1085	static int _caller_method_offset;
jrose@1862	1086	static int _caller_bci_offset;
jrose@1161	1087
jrose@1161	1088	static void compute_offsets();
jrose@1161	1089
jrose@1161	1090	public:
jrose@1161	1091	// Accessors
jrose@1161	1092	static oop target(oop site);
jrose@1161	1093	static void set_target(oop site, oop target);
jrose@1161	1094
jrose@1862	1095	static oop caller_method(oop site);
jrose@1862	1096	static void set_caller_method(oop site, oop ref);
jrose@1862	1097
jrose@1862	1098	static jint caller_bci(oop site);
jrose@1862	1099	static void set_caller_bci(oop site, jint bci);
jrose@1161	1100
twisti@1570	1101	// Testers
twisti@1570	1102	static bool is_subclass(klassOop klass) {
twisti@1570	1103	return Klass::cast(klass)->is_subclass_of(SystemDictionary::CallSite_klass());
twisti@1570	1104	}
twisti@1570	1105	static bool is_instance(oop obj) {
twisti@1570	1106	return obj != NULL && is_subclass(obj->klass());
twisti@1570	1107	}
twisti@1570	1108
jrose@1161	1109	// Accessors for code generation:
jrose@1161	1110	static int target_offset_in_bytes() { return _target_offset; }
jrose@1862	1111	static int caller_method_offset_in_bytes() { return _caller_method_offset; }
jrose@1862	1112	static int caller_bci_offset_in_bytes() { return _caller_bci_offset; }
jrose@1161	1113	};
jrose@1145	1114
jrose@1145	1115
duke@435	1116	// Interface to java.security.AccessControlContext objects
duke@435	1117
duke@435	1118	class java_security_AccessControlContext: AllStatic {
duke@435	1119	private:
duke@435	1120	// Note that for this class the layout changed between JDK1.2 and JDK1.3,
duke@435	1121	// so we compute the offsets at startup rather than hard-wiring them.
duke@435	1122	static int _context_offset;
duke@435	1123	static int _privilegedContext_offset;
duke@435	1124	static int _isPrivileged_offset;
duke@435	1125
duke@435	1126	static void compute_offsets();
duke@435	1127	public:
duke@435	1128	static oop create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS);
duke@435	1129
duke@435	1130	// Debugging/initialization
duke@435	1131	friend class JavaClasses;
duke@435	1132	};
duke@435	1133
duke@435	1134
duke@435	1135	// Interface to java.lang.ClassLoader objects
duke@435	1136
duke@435	1137	class java_lang_ClassLoader : AllStatic {
duke@435	1138	private:
duke@435	1139	enum {
duke@435	1140	hc_parent_offset = 0
duke@435	1141	};
duke@435	1142
duke@435	1143	static int parent_offset;
duke@435	1144
duke@435	1145	public:
duke@435	1146	static oop parent(oop loader);
duke@435	1147
duke@435	1148	static bool is_trusted_loader(oop loader);
duke@435	1149
duke@435	1150	// Fix for 4474172
duke@435	1151	static oop non_reflection_class_loader(oop loader);
duke@435	1152
duke@435	1153	// Debugging
duke@435	1154	friend class JavaClasses;
duke@435	1155	};
duke@435	1156
duke@435	1157
duke@435	1158	// Interface to java.lang.System objects
duke@435	1159
duke@435	1160	class java_lang_System : AllStatic {
duke@435	1161	private:
duke@435	1162	enum {
duke@435	1163	hc_static_in_offset = 0,
duke@435	1164	hc_static_out_offset = 1,
duke@435	1165	hc_static_err_offset = 2
duke@435	1166	};
duke@435	1167
duke@435	1168	static int offset_of_static_fields;
duke@435	1169	static int static_in_offset;
duke@435	1170	static int static_out_offset;
duke@435	1171	static int static_err_offset;
duke@435	1172
duke@435	1173	static void compute_offsets();
duke@435	1174
duke@435	1175	public:
duke@435	1176	static int in_offset_in_bytes();
duke@435	1177	static int out_offset_in_bytes();
duke@435	1178	static int err_offset_in_bytes();
duke@435	1179
duke@435	1180	// Debugging
duke@435	1181	friend class JavaClasses;
duke@435	1182	};
duke@435	1183
duke@435	1184
duke@435	1185	// Interface to java.lang.StackTraceElement objects
duke@435	1186
duke@435	1187	class java_lang_StackTraceElement: AllStatic {
duke@435	1188	private:
duke@435	1189	enum {
duke@435	1190	hc_declaringClass_offset = 0,
duke@435	1191	hc_methodName_offset = 1,
duke@435	1192	hc_fileName_offset = 2,
duke@435	1193	hc_lineNumber_offset = 3
duke@435	1194	};
duke@435	1195
duke@435	1196	static int declaringClass_offset;
duke@435	1197	static int methodName_offset;
duke@435	1198	static int fileName_offset;
duke@435	1199	static int lineNumber_offset;
duke@435	1200
duke@435	1201	public:
duke@435	1202	// Setters
duke@435	1203	static void set_declaringClass(oop element, oop value);
duke@435	1204	static void set_methodName(oop element, oop value);
duke@435	1205	static void set_fileName(oop element, oop value);
duke@435	1206	static void set_lineNumber(oop element, int value);
duke@435	1207
duke@435	1208	// Create an instance of StackTraceElement
duke@435	1209	static oop create(methodHandle m, int bci, TRAPS);
duke@435	1210
duke@435	1211	// Debugging
duke@435	1212	friend class JavaClasses;
duke@435	1213	};
duke@435	1214
duke@435	1215
duke@435	1216	// Interface to java.lang.AssertionStatusDirectives objects
duke@435	1217
duke@435	1218	class java_lang_AssertionStatusDirectives: AllStatic {
duke@435	1219	private:
duke@435	1220	enum {
duke@435	1221	hc_classes_offset,
duke@435	1222	hc_classEnabled_offset,
duke@435	1223	hc_packages_offset,
duke@435	1224	hc_packageEnabled_offset,
duke@435	1225	hc_deflt_offset
duke@435	1226	};
duke@435	1227
duke@435	1228	static int classes_offset;
duke@435	1229	static int classEnabled_offset;
duke@435	1230	static int packages_offset;
duke@435	1231	static int packageEnabled_offset;
duke@435	1232	static int deflt_offset;
duke@435	1233
duke@435	1234	public:
duke@435	1235	// Setters
duke@435	1236	static void set_classes(oop obj, oop val);
duke@435	1237	static void set_classEnabled(oop obj, oop val);
duke@435	1238	static void set_packages(oop obj, oop val);
duke@435	1239	static void set_packageEnabled(oop obj, oop val);
duke@435	1240	static void set_deflt(oop obj, bool val);
duke@435	1241	// Debugging
duke@435	1242	friend class JavaClasses;
duke@435	1243	};
duke@435	1244
duke@435	1245
duke@435	1246	class java_nio_Buffer: AllStatic {
duke@435	1247	private:
duke@435	1248	static int _limit_offset;
duke@435	1249
duke@435	1250	public:
duke@435	1251	static int limit_offset();
duke@435	1252	static void compute_offsets();
duke@435	1253	};
duke@435	1254
duke@435	1255	class sun_misc_AtomicLongCSImpl: AllStatic {
duke@435	1256	private:
duke@435	1257	static int _value_offset;
duke@435	1258
duke@435	1259	public:
duke@435	1260	static int value_offset();
duke@435	1261	static void compute_offsets();
duke@435	1262	};
duke@435	1263
duke@435	1264	class java_util_concurrent_locks_AbstractOwnableSynchronizer : AllStatic {
duke@435	1265	private:
duke@435	1266	static int _owner_offset;
duke@435	1267	public:
duke@435	1268	static void initialize(TRAPS);
duke@435	1269	static oop get_owner_threadObj(oop obj);
duke@435	1270	};
duke@435	1271
duke@435	1272	// Interface to hard-coded offset checking
duke@435	1273
duke@435	1274	class JavaClasses : AllStatic {
duke@435	1275	private:
duke@435	1276	static bool check_offset(const char *klass_name, int offset, const char *field_name, const char* field_sig) PRODUCT_RETURN0;
duke@435	1277	static bool check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) PRODUCT_RETURN0;
jrose@567	1278	static bool check_constant(const char *klass_name, int constant, const char *field_name, const char* field_sig) PRODUCT_RETURN0;
duke@435	1279	public:
duke@435	1280	static void compute_hard_coded_offsets();
duke@435	1281	static void compute_offsets();
duke@435	1282	static void check_offsets() PRODUCT_RETURN;
duke@435	1283	};
stefank@2314	1284
stefank@2314	1285	#endif // SHARE_VM_CLASSFILE_JAVACLASSES_HPP