Wed, 02 May 2012 13:21:36 -0400
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
Summary: Change the _host_klass to be conditionally created embedded instanceKlass field.
Reviewed-by: jrose, coleenp, dholmes
1 /*
2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
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25 #ifndef SHARE_VM_CLASSFILE_JAVACLASSES_HPP
26 #define SHARE_VM_CLASSFILE_JAVACLASSES_HPP
28 #include "classfile/systemDictionary.hpp"
29 #include "jvmtifiles/jvmti.h"
30 #include "oops/oop.hpp"
31 #include "runtime/os.hpp"
32 #include "utilities/utf8.hpp"
34 // Interface for manipulating the basic Java classes.
35 //
36 // All dependencies on layout of actual Java classes should be kept here.
37 // If the layout of any of the classes above changes the offsets must be adjusted.
38 //
39 // For most classes we hardwire the offsets for performance reasons. In certain
40 // cases (e.g. java.security.AccessControlContext) we compute the offsets at
41 // startup since the layout here differs between JDK1.2 and JDK1.3.
42 //
43 // Note that fields (static and non-static) are arranged with oops before non-oops
44 // on a per class basis. The offsets below have to reflect this ordering.
45 //
46 // When editing the layouts please update the check_offset verification code
47 // correspondingly. The names in the enums must be identical to the actual field
48 // names in order for the verification code to work.
51 // Interface to java.lang.String objects
53 class java_lang_String : AllStatic {
54 private:
55 enum {
56 hc_value_offset = 0,
57 hc_offset_offset = 1
58 //hc_count_offset = 2 -- not a word-scaled offset
59 //hc_hash_offset = 3 -- not a word-scaled offset
60 };
62 static int value_offset;
63 static int offset_offset;
64 static int count_offset;
65 static int hash_offset;
67 static Handle basic_create(int length, bool tenured, TRAPS);
68 static Handle basic_create_from_unicode(jchar* unicode, int length, bool tenured, TRAPS);
70 static void set_value( oop string, typeArrayOop buffer) { string->obj_field_put(value_offset, (oop)buffer); }
71 static void set_offset(oop string, int offset) { string->int_field_put(offset_offset, offset); }
72 static void set_count( oop string, int count) { string->int_field_put(count_offset, count); }
74 public:
75 // Instance creation
76 static Handle create_from_unicode(jchar* unicode, int len, TRAPS);
77 static Handle create_tenured_from_unicode(jchar* unicode, int len, TRAPS);
78 static oop create_oop_from_unicode(jchar* unicode, int len, TRAPS);
79 static Handle create_from_str(const char* utf8_str, TRAPS);
80 static oop create_oop_from_str(const char* utf8_str, TRAPS);
81 static Handle create_from_symbol(Symbol* symbol, TRAPS);
82 static Handle create_from_platform_dependent_str(const char* str, TRAPS);
83 static Handle char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS);
85 static int value_offset_in_bytes() { return value_offset; }
86 static int count_offset_in_bytes() { return count_offset; }
87 static int offset_offset_in_bytes() { return offset_offset; }
88 static int hash_offset_in_bytes() { return hash_offset; }
90 // Accessors
91 static typeArrayOop value(oop java_string) {
92 assert(is_instance(java_string), "must be java_string");
93 return (typeArrayOop) java_string->obj_field(value_offset);
94 }
95 static int offset(oop java_string) {
96 assert(is_instance(java_string), "must be java_string");
97 return java_string->int_field(offset_offset);
98 }
99 static int length(oop java_string) {
100 assert(is_instance(java_string), "must be java_string");
101 return java_string->int_field(count_offset);
102 }
103 static int utf8_length(oop java_string);
105 // String converters
106 static char* as_utf8_string(oop java_string);
107 static char* as_utf8_string(oop java_string, char* buf, int buflen);
108 static char* as_utf8_string(oop java_string, int start, int len);
109 static char* as_platform_dependent_str(Handle java_string, TRAPS);
110 static jchar* as_unicode_string(oop java_string, int& length);
112 // Compute the hash value for a java.lang.String object which would
113 // contain the characters passed in. This hash value is used for at
114 // least two purposes.
115 //
116 // (a) As the hash value used by the StringTable for bucket selection
117 // and comparison (stored in the HashtableEntry structures). This
118 // is used in the String.intern() method.
119 //
120 // (b) As the hash value used by the String object itself, in
121 // String.hashCode(). This value is normally calculate in Java code
122 // in the String.hashCode method(), but is precomputed for String
123 // objects in the shared archive file.
124 //
125 // For this reason, THIS ALGORITHM MUST MATCH String.hashCode().
126 static unsigned int hash_string(jchar* s, int len) {
127 unsigned int h = 0;
128 while (len-- > 0) {
129 h = 31*h + (unsigned int) *s;
130 s++;
131 }
132 return h;
133 }
134 static unsigned int hash_string(oop java_string);
136 static bool equals(oop java_string, jchar* chars, int len);
138 // Conversion between '.' and '/' formats
139 static Handle externalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '/', '.', THREAD); }
140 static Handle internalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '.', '/', THREAD); }
142 // Conversion
143 static Symbol* as_symbol(Handle java_string, TRAPS);
144 static Symbol* as_symbol_or_null(oop java_string);
146 // Testers
147 static bool is_instance(oop obj) {
148 return obj != NULL && obj->klass() == SystemDictionary::String_klass();
149 }
151 // Debugging
152 static void print(Handle java_string, outputStream* st);
153 friend class JavaClasses;
154 };
157 // Interface to java.lang.Class objects
159 #define CLASS_INJECTED_FIELDS(macro) \
160 macro(java_lang_Class, klass, object_signature, false) \
161 macro(java_lang_Class, resolved_constructor, object_signature, false) \
162 macro(java_lang_Class, array_klass, object_signature, false) \
163 macro(java_lang_Class, oop_size, int_signature, false) \
164 macro(java_lang_Class, static_oop_field_count, int_signature, false)
166 class java_lang_Class : AllStatic {
167 friend class VMStructs;
169 private:
170 // The fake offsets are added by the class loader when java.lang.Class is loaded
172 static int _klass_offset;
173 static int _resolved_constructor_offset;
174 static int _array_klass_offset;
176 static int _oop_size_offset;
177 static int _static_oop_field_count_offset;
179 static bool offsets_computed;
180 static int classRedefinedCount_offset;
182 public:
183 static void compute_offsets();
185 // Instance creation
186 static oop create_mirror(KlassHandle k, TRAPS);
187 static void fixup_mirror(KlassHandle k, TRAPS);
188 static oop create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS);
189 // Conversion
190 static klassOop as_klassOop(oop java_class);
191 static void set_klass(oop java_class, klassOop klass);
192 static BasicType as_BasicType(oop java_class, klassOop* reference_klass = NULL);
193 static BasicType as_BasicType(oop java_class, KlassHandle* reference_klass) {
194 klassOop refk_oop = NULL;
195 BasicType result = as_BasicType(java_class, &refk_oop);
196 (*reference_klass) = KlassHandle(refk_oop);
197 return result;
198 }
199 static Symbol* as_signature(oop java_class, bool intern_if_not_found, TRAPS);
200 static void print_signature(oop java_class, outputStream *st);
201 // Testing
202 static bool is_instance(oop obj) {
203 return obj != NULL && obj->klass() == SystemDictionary::Class_klass();
204 }
205 static bool is_primitive(oop java_class);
206 static BasicType primitive_type(oop java_class);
207 static oop primitive_mirror(BasicType t);
208 // JVM_NewInstance support
209 static methodOop resolved_constructor(oop java_class);
210 static void set_resolved_constructor(oop java_class, methodOop constructor);
211 // JVM_NewArray support
212 static klassOop array_klass(oop java_class);
213 static void set_array_klass(oop java_class, klassOop klass);
214 // compiler support for class operations
215 static int klass_offset_in_bytes() { return _klass_offset; }
216 static int resolved_constructor_offset_in_bytes() { return _resolved_constructor_offset; }
217 static int array_klass_offset_in_bytes() { return _array_klass_offset; }
218 // Support for classRedefinedCount field
219 static int classRedefinedCount(oop the_class_mirror);
220 static void set_classRedefinedCount(oop the_class_mirror, int value);
222 static int oop_size(oop java_class);
223 static void set_oop_size(oop java_class, int size);
224 static int static_oop_field_count(oop java_class);
225 static void set_static_oop_field_count(oop java_class, int size);
227 // Debugging
228 friend class JavaClasses;
229 friend class instanceKlass; // verification code accesses offsets
230 friend class ClassFileParser; // access to number_of_fake_fields
231 };
233 // Interface to java.lang.Thread objects
235 class java_lang_Thread : AllStatic {
236 private:
237 // Note that for this class the layout changed between JDK1.2 and JDK1.3,
238 // so we compute the offsets at startup rather than hard-wiring them.
239 static int _name_offset;
240 static int _group_offset;
241 static int _contextClassLoader_offset;
242 static int _inheritedAccessControlContext_offset;
243 static int _priority_offset;
244 static int _eetop_offset;
245 static int _daemon_offset;
246 static int _stillborn_offset;
247 static int _stackSize_offset;
248 static int _tid_offset;
249 static int _thread_status_offset;
250 static int _park_blocker_offset;
251 static int _park_event_offset ;
253 static void compute_offsets();
255 public:
256 // Instance creation
257 static oop create();
258 // Returns the JavaThread associated with the thread obj
259 static JavaThread* thread(oop java_thread);
260 // Set JavaThread for instance
261 static void set_thread(oop java_thread, JavaThread* thread);
262 // Name
263 static typeArrayOop name(oop java_thread);
264 static void set_name(oop java_thread, typeArrayOop name);
265 // Priority
266 static ThreadPriority priority(oop java_thread);
267 static void set_priority(oop java_thread, ThreadPriority priority);
268 // Thread group
269 static oop threadGroup(oop java_thread);
270 // Stillborn
271 static bool is_stillborn(oop java_thread);
272 static void set_stillborn(oop java_thread);
273 // Alive (NOTE: this is not really a field, but provides the correct
274 // definition without doing a Java call)
275 static bool is_alive(oop java_thread);
276 // Daemon
277 static bool is_daemon(oop java_thread);
278 static void set_daemon(oop java_thread);
279 // Context ClassLoader
280 static oop context_class_loader(oop java_thread);
281 // Control context
282 static oop inherited_access_control_context(oop java_thread);
283 // Stack size hint
284 static jlong stackSize(oop java_thread);
285 // Thread ID
286 static jlong thread_id(oop java_thread);
288 // Blocker object responsible for thread parking
289 static oop park_blocker(oop java_thread);
291 // Pointer to type-stable park handler, encoded as jlong.
292 // Should be set when apparently null
293 // For details, see unsafe.cpp Unsafe_Unpark
294 static jlong park_event(oop java_thread);
295 static bool set_park_event(oop java_thread, jlong ptr);
297 // Java Thread Status for JVMTI and M&M use.
298 // This thread status info is saved in threadStatus field of
299 // java.lang.Thread java class.
300 enum ThreadStatus {
301 NEW = 0,
302 RUNNABLE = JVMTI_THREAD_STATE_ALIVE + // runnable / running
303 JVMTI_THREAD_STATE_RUNNABLE,
304 SLEEPING = JVMTI_THREAD_STATE_ALIVE + // Thread.sleep()
305 JVMTI_THREAD_STATE_WAITING +
306 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT +
307 JVMTI_THREAD_STATE_SLEEPING,
308 IN_OBJECT_WAIT = JVMTI_THREAD_STATE_ALIVE + // Object.wait()
309 JVMTI_THREAD_STATE_WAITING +
310 JVMTI_THREAD_STATE_WAITING_INDEFINITELY +
311 JVMTI_THREAD_STATE_IN_OBJECT_WAIT,
312 IN_OBJECT_WAIT_TIMED = JVMTI_THREAD_STATE_ALIVE + // Object.wait(long)
313 JVMTI_THREAD_STATE_WAITING +
314 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT +
315 JVMTI_THREAD_STATE_IN_OBJECT_WAIT,
316 PARKED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park()
317 JVMTI_THREAD_STATE_WAITING +
318 JVMTI_THREAD_STATE_WAITING_INDEFINITELY +
319 JVMTI_THREAD_STATE_PARKED,
320 PARKED_TIMED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park(long)
321 JVMTI_THREAD_STATE_WAITING +
322 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT +
323 JVMTI_THREAD_STATE_PARKED,
324 BLOCKED_ON_MONITOR_ENTER = JVMTI_THREAD_STATE_ALIVE + // (re-)entering a synchronization block
325 JVMTI_THREAD_STATE_BLOCKED_ON_MONITOR_ENTER,
326 TERMINATED = JVMTI_THREAD_STATE_TERMINATED
327 };
328 // Write thread status info to threadStatus field of java.lang.Thread.
329 static void set_thread_status(oop java_thread_oop, ThreadStatus status);
330 // Read thread status info from threadStatus field of java.lang.Thread.
331 static ThreadStatus get_thread_status(oop java_thread_oop);
333 static const char* thread_status_name(oop java_thread_oop);
335 // Debugging
336 friend class JavaClasses;
337 };
339 // Interface to java.lang.ThreadGroup objects
341 class java_lang_ThreadGroup : AllStatic {
342 private:
343 static int _parent_offset;
344 static int _name_offset;
345 static int _threads_offset;
346 static int _groups_offset;
347 static int _maxPriority_offset;
348 static int _destroyed_offset;
349 static int _daemon_offset;
350 static int _vmAllowSuspension_offset;
351 static int _nthreads_offset;
352 static int _ngroups_offset;
354 static void compute_offsets();
356 public:
357 // parent ThreadGroup
358 static oop parent(oop java_thread_group);
359 // name
360 static typeArrayOop name(oop java_thread_group);
361 // ("name as oop" accessor is not necessary)
362 // Number of threads in group
363 static int nthreads(oop java_thread_group);
364 // threads
365 static objArrayOop threads(oop java_thread_group);
366 // Number of threads in group
367 static int ngroups(oop java_thread_group);
368 // groups
369 static objArrayOop groups(oop java_thread_group);
370 // maxPriority in group
371 static ThreadPriority maxPriority(oop java_thread_group);
372 // Destroyed
373 static bool is_destroyed(oop java_thread_group);
374 // Daemon
375 static bool is_daemon(oop java_thread_group);
376 // vmAllowSuspension
377 static bool is_vmAllowSuspension(oop java_thread_group);
378 // Debugging
379 friend class JavaClasses;
380 };
384 // Interface to java.lang.Throwable objects
386 class java_lang_Throwable: AllStatic {
387 friend class BacktraceBuilder;
389 private:
390 // Offsets
391 enum {
392 hc_backtrace_offset = 0,
393 hc_detailMessage_offset = 1,
394 hc_cause_offset = 2, // New since 1.4
395 hc_stackTrace_offset = 3 // New since 1.4
396 };
397 enum {
398 hc_static_unassigned_stacktrace_offset = 0 // New since 1.7
399 };
400 // Trace constants
401 enum {
402 trace_methods_offset = 0,
403 trace_bcis_offset = 1,
404 trace_next_offset = 2,
405 trace_size = 3,
406 trace_chunk_size = 32
407 };
409 static int backtrace_offset;
410 static int detailMessage_offset;
411 static int cause_offset;
412 static int stackTrace_offset;
413 static int static_unassigned_stacktrace_offset;
415 // Printing
416 static char* print_stack_element_to_buffer(methodOop method, int bci);
417 static void print_to_stream(Handle stream, const char* str);
418 // StackTrace (programmatic access, new since 1.4)
419 static void clear_stacktrace(oop throwable);
420 // No stack trace available
421 static const char* no_stack_trace_message();
422 // Stacktrace (post JDK 1.7.0 to allow immutability protocol to be followed)
423 static void set_stacktrace(oop throwable, oop st_element_array);
424 static oop unassigned_stacktrace();
426 public:
427 // Backtrace
428 static oop backtrace(oop throwable);
429 static void set_backtrace(oop throwable, oop value);
430 // Needed by JVMTI to filter out this internal field.
431 static int get_backtrace_offset() { return backtrace_offset;}
432 static int get_detailMessage_offset() { return detailMessage_offset;}
433 // Message
434 static oop message(oop throwable);
435 static oop message(Handle throwable);
436 static void set_message(oop throwable, oop value);
437 // Print stack trace stored in exception by call-back to Java
438 // Note: this is no longer used in Merlin, but we still suppport
439 // it for compatibility.
440 static void print_stack_trace(oop throwable, oop print_stream);
441 static void print_stack_element(Handle stream, methodOop method, int bci);
442 static void print_stack_element(outputStream *st, methodOop method, int bci);
443 static void print_stack_usage(Handle stream);
445 // Allocate space for backtrace (created but stack trace not filled in)
446 static void allocate_backtrace(Handle throwable, TRAPS);
447 // Fill in current stack trace for throwable with preallocated backtrace (no GC)
448 static void fill_in_stack_trace_of_preallocated_backtrace(Handle throwable);
449 // Fill in current stack trace, can cause GC
450 static void fill_in_stack_trace(Handle throwable, methodHandle method, TRAPS);
451 static void fill_in_stack_trace(Handle throwable, methodHandle method = methodHandle());
452 // Programmatic access to stack trace
453 static oop get_stack_trace_element(oop throwable, int index, TRAPS);
454 static int get_stack_trace_depth(oop throwable, TRAPS);
455 // Printing
456 static void print(oop throwable, outputStream* st);
457 static void print(Handle throwable, outputStream* st);
458 static void print_stack_trace(oop throwable, outputStream* st);
459 // Debugging
460 friend class JavaClasses;
461 };
464 // Interface to java.lang.reflect.AccessibleObject objects
466 class java_lang_reflect_AccessibleObject: AllStatic {
467 private:
468 // Note that to reduce dependencies on the JDK we compute these
469 // offsets at run-time.
470 static int override_offset;
472 static void compute_offsets();
474 public:
475 // Accessors
476 static jboolean override(oop reflect);
477 static void set_override(oop reflect, jboolean value);
479 // Debugging
480 friend class JavaClasses;
481 };
484 // Interface to java.lang.reflect.Method objects
486 class java_lang_reflect_Method : public java_lang_reflect_AccessibleObject {
487 private:
488 // Note that to reduce dependencies on the JDK we compute these
489 // offsets at run-time.
490 static int clazz_offset;
491 static int name_offset;
492 static int returnType_offset;
493 static int parameterTypes_offset;
494 static int exceptionTypes_offset;
495 static int slot_offset;
496 static int modifiers_offset;
497 static int signature_offset;
498 static int annotations_offset;
499 static int parameter_annotations_offset;
500 static int annotation_default_offset;
502 static void compute_offsets();
504 public:
505 // Allocation
506 static Handle create(TRAPS);
508 // Accessors
509 static oop clazz(oop reflect);
510 static void set_clazz(oop reflect, oop value);
512 static oop name(oop method);
513 static void set_name(oop method, oop value);
515 static oop return_type(oop method);
516 static void set_return_type(oop method, oop value);
518 static oop parameter_types(oop method);
519 static void set_parameter_types(oop method, oop value);
521 static oop exception_types(oop method);
522 static void set_exception_types(oop method, oop value);
524 static int slot(oop reflect);
525 static void set_slot(oop reflect, int value);
527 static int modifiers(oop method);
528 static void set_modifiers(oop method, int value);
530 static bool has_signature_field();
531 static oop signature(oop method);
532 static void set_signature(oop method, oop value);
534 static bool has_annotations_field();
535 static oop annotations(oop method);
536 static void set_annotations(oop method, oop value);
538 static bool has_parameter_annotations_field();
539 static oop parameter_annotations(oop method);
540 static void set_parameter_annotations(oop method, oop value);
542 static bool has_annotation_default_field();
543 static oop annotation_default(oop method);
544 static void set_annotation_default(oop method, oop value);
546 // Debugging
547 friend class JavaClasses;
548 };
551 // Interface to java.lang.reflect.Constructor objects
553 class java_lang_reflect_Constructor : public java_lang_reflect_AccessibleObject {
554 private:
555 // Note that to reduce dependencies on the JDK we compute these
556 // offsets at run-time.
557 static int clazz_offset;
558 static int parameterTypes_offset;
559 static int exceptionTypes_offset;
560 static int slot_offset;
561 static int modifiers_offset;
562 static int signature_offset;
563 static int annotations_offset;
564 static int parameter_annotations_offset;
566 static void compute_offsets();
568 public:
569 // Allocation
570 static Handle create(TRAPS);
572 // Accessors
573 static oop clazz(oop reflect);
574 static void set_clazz(oop reflect, oop value);
576 static oop parameter_types(oop constructor);
577 static void set_parameter_types(oop constructor, oop value);
579 static oop exception_types(oop constructor);
580 static void set_exception_types(oop constructor, oop value);
582 static int slot(oop reflect);
583 static void set_slot(oop reflect, int value);
585 static int modifiers(oop constructor);
586 static void set_modifiers(oop constructor, int value);
588 static bool has_signature_field();
589 static oop signature(oop constructor);
590 static void set_signature(oop constructor, oop value);
592 static bool has_annotations_field();
593 static oop annotations(oop constructor);
594 static void set_annotations(oop constructor, oop value);
596 static bool has_parameter_annotations_field();
597 static oop parameter_annotations(oop method);
598 static void set_parameter_annotations(oop method, oop value);
600 // Debugging
601 friend class JavaClasses;
602 };
605 // Interface to java.lang.reflect.Field objects
607 class java_lang_reflect_Field : public java_lang_reflect_AccessibleObject {
608 private:
609 // Note that to reduce dependencies on the JDK we compute these
610 // offsets at run-time.
611 static int clazz_offset;
612 static int name_offset;
613 static int type_offset;
614 static int slot_offset;
615 static int modifiers_offset;
616 static int signature_offset;
617 static int annotations_offset;
619 static void compute_offsets();
621 public:
622 // Allocation
623 static Handle create(TRAPS);
625 // Accessors
626 static oop clazz(oop reflect);
627 static void set_clazz(oop reflect, oop value);
629 static oop name(oop field);
630 static void set_name(oop field, oop value);
632 static oop type(oop field);
633 static void set_type(oop field, oop value);
635 static int slot(oop reflect);
636 static void set_slot(oop reflect, int value);
638 static int modifiers(oop field);
639 static void set_modifiers(oop field, int value);
641 static bool has_signature_field();
642 static oop signature(oop constructor);
643 static void set_signature(oop constructor, oop value);
645 static bool has_annotations_field();
646 static oop annotations(oop constructor);
647 static void set_annotations(oop constructor, oop value);
649 static bool has_parameter_annotations_field();
650 static oop parameter_annotations(oop method);
651 static void set_parameter_annotations(oop method, oop value);
653 static bool has_annotation_default_field();
654 static oop annotation_default(oop method);
655 static void set_annotation_default(oop method, oop value);
657 // Debugging
658 friend class JavaClasses;
659 };
661 // Interface to sun.reflect.ConstantPool objects
662 class sun_reflect_ConstantPool {
663 private:
664 // Note that to reduce dependencies on the JDK we compute these
665 // offsets at run-time.
666 static int _cp_oop_offset;
668 static void compute_offsets();
670 public:
671 // Allocation
672 static Handle create(TRAPS);
674 // Accessors
675 static oop cp_oop(oop reflect);
676 static void set_cp_oop(oop reflect, oop value);
677 static int cp_oop_offset() {
678 return _cp_oop_offset;
679 }
681 // Debugging
682 friend class JavaClasses;
683 };
685 // Interface to sun.reflect.UnsafeStaticFieldAccessorImpl objects
686 class sun_reflect_UnsafeStaticFieldAccessorImpl {
687 private:
688 static int _base_offset;
689 static void compute_offsets();
691 public:
692 static int base_offset() {
693 return _base_offset;
694 }
696 // Debugging
697 friend class JavaClasses;
698 };
700 // Interface to java.lang primitive type boxing objects:
701 // - java.lang.Boolean
702 // - java.lang.Character
703 // - java.lang.Float
704 // - java.lang.Double
705 // - java.lang.Byte
706 // - java.lang.Short
707 // - java.lang.Integer
708 // - java.lang.Long
710 // This could be separated out into 8 individual classes.
712 class java_lang_boxing_object: AllStatic {
713 private:
714 enum {
715 hc_value_offset = 0
716 };
717 static int value_offset;
718 static int long_value_offset;
720 static oop initialize_and_allocate(BasicType type, TRAPS);
721 public:
722 // Allocation. Returns a boxed value, or NULL for invalid type.
723 static oop create(BasicType type, jvalue* value, TRAPS);
724 // Accessors. Returns the basic type being boxed, or T_ILLEGAL for invalid oop.
725 static BasicType get_value(oop box, jvalue* value);
726 static BasicType set_value(oop box, jvalue* value);
727 static BasicType basic_type(oop box);
728 static bool is_instance(oop box) { return basic_type(box) != T_ILLEGAL; }
729 static bool is_instance(oop box, BasicType type) { return basic_type(box) == type; }
730 static void print(oop box, outputStream* st) { jvalue value; print(get_value(box, &value), &value, st); }
731 static void print(BasicType type, jvalue* value, outputStream* st);
733 static int value_offset_in_bytes(BasicType type) {
734 return ( type == T_LONG || type == T_DOUBLE ) ? long_value_offset :
735 value_offset;
736 }
738 // Debugging
739 friend class JavaClasses;
740 };
744 // Interface to java.lang.ref.Reference objects
746 class java_lang_ref_Reference: AllStatic {
747 public:
748 enum {
749 hc_referent_offset = 0,
750 hc_queue_offset = 1,
751 hc_next_offset = 2,
752 hc_discovered_offset = 3 // Is not last, see SoftRefs.
753 };
754 enum {
755 hc_static_lock_offset = 0,
756 hc_static_pending_offset = 1
757 };
759 static int referent_offset;
760 static int queue_offset;
761 static int next_offset;
762 static int discovered_offset;
763 static int static_lock_offset;
764 static int static_pending_offset;
765 static int number_of_fake_oop_fields;
767 // Accessors
768 static oop referent(oop ref) {
769 return ref->obj_field(referent_offset);
770 }
771 static void set_referent(oop ref, oop value) {
772 ref->obj_field_put(referent_offset, value);
773 }
774 static void set_referent_raw(oop ref, oop value) {
775 ref->obj_field_put_raw(referent_offset, value);
776 }
777 static HeapWord* referent_addr(oop ref) {
778 return ref->obj_field_addr<HeapWord>(referent_offset);
779 }
780 static oop next(oop ref) {
781 return ref->obj_field(next_offset);
782 }
783 static void set_next(oop ref, oop value) {
784 ref->obj_field_put(next_offset, value);
785 }
786 static void set_next_raw(oop ref, oop value) {
787 ref->obj_field_put_raw(next_offset, value);
788 }
789 static HeapWord* next_addr(oop ref) {
790 return ref->obj_field_addr<HeapWord>(next_offset);
791 }
792 static oop discovered(oop ref) {
793 return ref->obj_field(discovered_offset);
794 }
795 static void set_discovered(oop ref, oop value) {
796 ref->obj_field_put(discovered_offset, value);
797 }
798 static void set_discovered_raw(oop ref, oop value) {
799 ref->obj_field_put_raw(discovered_offset, value);
800 }
801 static HeapWord* discovered_addr(oop ref) {
802 return ref->obj_field_addr<HeapWord>(discovered_offset);
803 }
804 // Accessors for statics
805 static oop pending_list_lock();
806 static oop pending_list();
808 static HeapWord* pending_list_addr();
809 };
812 // Interface to java.lang.ref.SoftReference objects
814 class java_lang_ref_SoftReference: public java_lang_ref_Reference {
815 public:
816 enum {
817 // The timestamp is a long field and may need to be adjusted for alignment.
818 hc_timestamp_offset = hc_discovered_offset + 1
819 };
820 enum {
821 hc_static_clock_offset = 0
822 };
824 static int timestamp_offset;
825 static int static_clock_offset;
827 // Accessors
828 static jlong timestamp(oop ref);
830 // Accessors for statics
831 static jlong clock();
832 static void set_clock(jlong value);
833 };
836 // Interface to java.lang.invoke.MethodHandle objects
838 #define METHODHANDLE_INJECTED_FIELDS(macro) \
839 macro(java_lang_invoke_MethodHandle, vmentry, intptr_signature, false) \
840 macro(java_lang_invoke_MethodHandle, vmtarget, object_signature, true)
842 class MethodHandleEntry;
844 class java_lang_invoke_MethodHandle: AllStatic {
845 friend class JavaClasses;
847 private:
848 static int _vmentry_offset; // assembly code trampoline for MH
849 static int _vmtarget_offset; // class-specific target reference
850 static int _type_offset; // the MethodType of this MH
852 static void compute_offsets();
854 public:
855 // Accessors
856 static oop type(oop mh);
857 static void set_type(oop mh, oop mtype);
859 static oop vmtarget(oop mh);
860 static void set_vmtarget(oop mh, oop target);
862 static MethodHandleEntry* vmentry(oop mh);
863 static void set_vmentry(oop mh, MethodHandleEntry* data);
865 static int vmslots(oop mh);
867 // Testers
868 static bool is_subclass(klassOop klass) {
869 return Klass::cast(klass)->is_subclass_of(SystemDictionary::MethodHandle_klass());
870 }
871 static bool is_instance(oop obj) {
872 return obj != NULL && is_subclass(obj->klass());
873 }
875 // Accessors for code generation:
876 static int type_offset_in_bytes() { return _type_offset; }
877 static int vmtarget_offset_in_bytes() { return _vmtarget_offset; }
878 static int vmentry_offset_in_bytes() { return _vmentry_offset; }
879 };
881 #define DIRECTMETHODHANDLE_INJECTED_FIELDS(macro) \
882 macro(java_lang_invoke_DirectMethodHandle, vmindex, int_signature, true)
884 class java_lang_invoke_DirectMethodHandle: public java_lang_invoke_MethodHandle {
885 friend class JavaClasses;
887 private:
888 static int _vmindex_offset; // negative or vtable idx or itable idx
889 static void compute_offsets();
891 public:
892 // Accessors
893 static int vmindex(oop mh);
894 static void set_vmindex(oop mh, int index);
896 // Testers
897 static bool is_subclass(klassOop klass) {
898 return Klass::cast(klass)->is_subclass_of(SystemDictionary::DirectMethodHandle_klass());
899 }
900 static bool is_instance(oop obj) {
901 return obj != NULL && is_subclass(obj->klass());
902 }
904 // Accessors for code generation:
905 static int vmindex_offset_in_bytes() { return _vmindex_offset; }
906 };
908 class java_lang_invoke_BoundMethodHandle: public java_lang_invoke_MethodHandle {
909 friend class JavaClasses;
911 private:
912 static int _argument_offset; // argument value bound into this MH
913 static int _vmargslot_offset; // relevant argument slot (<= vmslots)
914 static void compute_offsets();
916 public:
917 static oop argument(oop mh);
918 static void set_argument(oop mh, oop ref);
920 static jint vmargslot(oop mh);
921 static void set_vmargslot(oop mh, jint slot);
923 // Testers
924 static bool is_subclass(klassOop klass) {
925 return Klass::cast(klass)->is_subclass_of(SystemDictionary::BoundMethodHandle_klass());
926 }
927 static bool is_instance(oop obj) {
928 return obj != NULL && is_subclass(obj->klass());
929 }
931 static int argument_offset_in_bytes() { return _argument_offset; }
932 static int vmargslot_offset_in_bytes() { return _vmargslot_offset; }
933 };
935 class java_lang_invoke_AdapterMethodHandle: public java_lang_invoke_BoundMethodHandle {
936 friend class JavaClasses;
938 private:
939 static int _conversion_offset; // type of conversion to apply
940 static void compute_offsets();
942 public:
943 static int conversion(oop mh);
944 static void set_conversion(oop mh, int conv);
946 // Testers
947 static bool is_subclass(klassOop klass) {
948 return Klass::cast(klass)->is_subclass_of(SystemDictionary::AdapterMethodHandle_klass());
949 }
950 static bool is_instance(oop obj) {
951 return obj != NULL && is_subclass(obj->klass());
952 }
954 // Relevant integer codes (keep these in synch. with MethodHandleNatives.Constants):
955 enum {
956 OP_RETYPE_ONLY = 0x0, // no argument changes; straight retype
957 OP_RETYPE_RAW = 0x1, // straight retype, trusted (void->int, Object->T)
958 OP_CHECK_CAST = 0x2, // ref-to-ref conversion; requires a Class argument
959 OP_PRIM_TO_PRIM = 0x3, // converts from one primitive to another
960 OP_REF_TO_PRIM = 0x4, // unboxes a wrapper to produce a primitive
961 OP_PRIM_TO_REF = 0x5, // boxes a primitive into a wrapper
962 OP_SWAP_ARGS = 0x6, // swap arguments (vminfo is 2nd arg)
963 OP_ROT_ARGS = 0x7, // rotate arguments (vminfo is displaced arg)
964 OP_DUP_ARGS = 0x8, // duplicates one or more arguments (at TOS)
965 OP_DROP_ARGS = 0x9, // remove one or more argument slots
966 OP_COLLECT_ARGS = 0xA, // combine arguments using an auxiliary function
967 OP_SPREAD_ARGS = 0xB, // expand in place a varargs array (of known size)
968 OP_FOLD_ARGS = 0xC, // combine but do not remove arguments; prepend result
969 //OP_UNUSED_13 = 0xD, // unused code, perhaps for reified argument lists
970 CONV_OP_LIMIT = 0xE, // limit of CONV_OP enumeration
972 CONV_OP_MASK = 0xF00, // this nybble contains the conversion op field
973 CONV_TYPE_MASK = 0x0F, // fits T_ADDRESS and below
974 CONV_VMINFO_MASK = 0x0FF, // LSB is reserved for JVM use
975 CONV_VMINFO_SHIFT = 0, // position of bits in CONV_VMINFO_MASK
976 CONV_OP_SHIFT = 8, // position of bits in CONV_OP_MASK
977 CONV_DEST_TYPE_SHIFT = 12, // byte 2 has the adapter BasicType (if needed)
978 CONV_SRC_TYPE_SHIFT = 16, // byte 2 has the source BasicType (if needed)
979 CONV_STACK_MOVE_SHIFT = 20, // high 12 bits give signed SP change
980 CONV_STACK_MOVE_MASK = (1 << (32 - CONV_STACK_MOVE_SHIFT)) - 1
981 };
983 static int conversion_offset_in_bytes() { return _conversion_offset; }
984 };
987 // A simple class that maintains an invocation count
988 class java_lang_invoke_CountingMethodHandle: public java_lang_invoke_MethodHandle {
989 friend class JavaClasses;
991 private:
992 static int _vmcount_offset;
993 static void compute_offsets();
995 public:
996 // Accessors
997 static int vmcount(oop mh);
998 static void set_vmcount(oop mh, int count);
1000 // Testers
1001 static bool is_subclass(klassOop klass) {
1002 return SystemDictionary::CountingMethodHandle_klass() != NULL &&
1003 Klass::cast(klass)->is_subclass_of(SystemDictionary::CountingMethodHandle_klass());
1004 }
1005 static bool is_instance(oop obj) {
1006 return obj != NULL && is_subclass(obj->klass());
1007 }
1009 // Accessors for code generation:
1010 static int vmcount_offset_in_bytes() { return _vmcount_offset; }
1011 };
1015 // Interface to java.lang.invoke.MemberName objects
1016 // (These are a private interface for Java code to query the class hierarchy.)
1018 #define MEMBERNAME_INJECTED_FIELDS(macro) \
1019 macro(java_lang_invoke_MemberName, vmtarget, object_signature, true)
1021 class java_lang_invoke_MemberName: AllStatic {
1022 friend class JavaClasses;
1024 private:
1025 // From java.lang.invoke.MemberName:
1026 // private Class<?> clazz; // class in which the method is defined
1027 // private String name; // may be null if not yet materialized
1028 // private Object type; // may be null if not yet materialized
1029 // private int flags; // modifier bits; see reflect.Modifier
1030 // private Object vmtarget; // VM-specific target value
1031 // private int vmindex; // method index within class or interface
1032 static int _clazz_offset;
1033 static int _name_offset;
1034 static int _type_offset;
1035 static int _flags_offset;
1036 static int _vmtarget_offset;
1037 static int _vmindex_offset;
1039 static void compute_offsets();
1041 public:
1042 // Accessors
1043 static oop clazz(oop mname);
1044 static void set_clazz(oop mname, oop clazz);
1046 static oop type(oop mname);
1047 static void set_type(oop mname, oop type);
1049 static oop name(oop mname);
1050 static void set_name(oop mname, oop name);
1052 static int flags(oop mname);
1053 static void set_flags(oop mname, int flags);
1055 static int modifiers(oop mname) { return (u2) flags(mname); }
1056 static void set_modifiers(oop mname, int mods)
1057 { set_flags(mname, (flags(mname) &~ (u2)-1) | (u2)mods); }
1059 static oop vmtarget(oop mname);
1060 static void set_vmtarget(oop mname, oop target);
1062 static int vmindex(oop mname);
1063 static void set_vmindex(oop mname, int index);
1065 // Testers
1066 static bool is_subclass(klassOop klass) {
1067 return Klass::cast(klass)->is_subclass_of(SystemDictionary::MemberName_klass());
1068 }
1069 static bool is_instance(oop obj) {
1070 return obj != NULL && is_subclass(obj->klass());
1071 }
1073 // Relevant integer codes (keep these in synch. with MethodHandleNatives.Constants):
1074 enum {
1075 MN_IS_METHOD = 0x00010000, // method (not constructor)
1076 MN_IS_CONSTRUCTOR = 0x00020000, // constructor
1077 MN_IS_FIELD = 0x00040000, // field
1078 MN_IS_TYPE = 0x00080000, // nested type
1079 MN_SEARCH_SUPERCLASSES = 0x00100000, // for MHN.getMembers
1080 MN_SEARCH_INTERFACES = 0x00200000, // for MHN.getMembers
1081 VM_INDEX_UNINITIALIZED = -99
1082 };
1084 // Accessors for code generation:
1085 static int clazz_offset_in_bytes() { return _clazz_offset; }
1086 static int type_offset_in_bytes() { return _type_offset; }
1087 static int name_offset_in_bytes() { return _name_offset; }
1088 static int flags_offset_in_bytes() { return _flags_offset; }
1089 static int vmtarget_offset_in_bytes() { return _vmtarget_offset; }
1090 static int vmindex_offset_in_bytes() { return _vmindex_offset; }
1091 };
1094 // Interface to java.lang.invoke.MethodType objects
1096 class java_lang_invoke_MethodType: AllStatic {
1097 friend class JavaClasses;
1099 private:
1100 static int _rtype_offset;
1101 static int _ptypes_offset;
1102 static int _form_offset;
1104 static void compute_offsets();
1106 public:
1107 // Accessors
1108 static oop rtype(oop mt);
1109 static objArrayOop ptypes(oop mt);
1110 static oop form(oop mt);
1112 static oop ptype(oop mt, int index);
1113 static int ptype_count(oop mt);
1115 static Symbol* as_signature(oop mt, bool intern_if_not_found, TRAPS);
1116 static void print_signature(oop mt, outputStream* st);
1118 static bool is_instance(oop obj) {
1119 return obj != NULL && obj->klass() == SystemDictionary::MethodType_klass();
1120 }
1122 static bool equals(oop mt1, oop mt2);
1124 // Accessors for code generation:
1125 static int rtype_offset_in_bytes() { return _rtype_offset; }
1126 static int ptypes_offset_in_bytes() { return _ptypes_offset; }
1127 static int form_offset_in_bytes() { return _form_offset; }
1128 };
1130 #define METHODTYPEFORM_INJECTED_FIELDS(macro) \
1131 macro(java_lang_invoke_MethodTypeForm, vmslots, int_signature, true) \
1132 macro(java_lang_invoke_MethodTypeForm, vmlayout, object_signature, true)
1134 class java_lang_invoke_MethodTypeForm: AllStatic {
1135 friend class JavaClasses;
1137 private:
1138 static int _vmslots_offset; // number of argument slots needed
1139 static int _vmlayout_offset; // object describing internal calling sequence
1140 static int _erasedType_offset; // erasedType = canonical MethodType
1141 static int _genericInvoker_offset; // genericInvoker = adapter for invokeGeneric
1143 static void compute_offsets();
1145 public:
1146 // Accessors
1147 static int vmslots(oop mtform);
1148 static void set_vmslots(oop mtform, int vmslots);
1150 static oop erasedType(oop mtform);
1151 static oop genericInvoker(oop mtform);
1153 static oop vmlayout(oop mtform);
1154 static oop init_vmlayout(oop mtform, oop cookie);
1156 // Accessors for code generation:
1157 static int vmslots_offset_in_bytes() { return _vmslots_offset; }
1158 static int vmlayout_offset_in_bytes() { return _vmlayout_offset; }
1159 static int erasedType_offset_in_bytes() { return _erasedType_offset; }
1160 static int genericInvoker_offset_in_bytes() { return _genericInvoker_offset; }
1161 };
1164 // Interface to java.lang.invoke.CallSite objects
1166 class java_lang_invoke_CallSite: AllStatic {
1167 friend class JavaClasses;
1169 private:
1170 static int _target_offset;
1172 static void compute_offsets();
1174 public:
1175 // Accessors
1176 static oop target( oop site) { return site->obj_field( _target_offset); }
1177 static void set_target( oop site, oop target) { site->obj_field_put( _target_offset, target); }
1179 static volatile oop target_volatile(oop site) { return site->obj_field_volatile( _target_offset); }
1180 static void set_target_volatile(oop site, oop target) { site->obj_field_put_volatile(_target_offset, target); }
1182 // Testers
1183 static bool is_subclass(klassOop klass) {
1184 return Klass::cast(klass)->is_subclass_of(SystemDictionary::CallSite_klass());
1185 }
1186 static bool is_instance(oop obj) {
1187 return obj != NULL && is_subclass(obj->klass());
1188 }
1190 // Accessors for code generation:
1191 static int target_offset_in_bytes() { return _target_offset; }
1192 };
1195 // Interface to java.security.AccessControlContext objects
1197 class java_security_AccessControlContext: AllStatic {
1198 private:
1199 // Note that for this class the layout changed between JDK1.2 and JDK1.3,
1200 // so we compute the offsets at startup rather than hard-wiring them.
1201 static int _context_offset;
1202 static int _privilegedContext_offset;
1203 static int _isPrivileged_offset;
1205 static void compute_offsets();
1206 public:
1207 static oop create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS);
1209 // Debugging/initialization
1210 friend class JavaClasses;
1211 };
1214 // Interface to java.lang.ClassLoader objects
1216 class java_lang_ClassLoader : AllStatic {
1217 private:
1218 enum {
1219 hc_parent_offset = 0
1220 };
1222 static bool offsets_computed;
1223 static int parent_offset;
1224 static int parallelCapable_offset;
1226 static void compute_offsets();
1228 public:
1229 static oop parent(oop loader);
1231 // Support for parallelCapable field
1232 static bool parallelCapable(oop the_class_mirror);
1234 static bool is_trusted_loader(oop loader);
1236 // Fix for 4474172
1237 static oop non_reflection_class_loader(oop loader);
1239 // Debugging
1240 friend class JavaClasses;
1241 };
1244 // Interface to java.lang.System objects
1246 class java_lang_System : AllStatic {
1247 private:
1248 enum {
1249 hc_static_in_offset = 0,
1250 hc_static_out_offset = 1,
1251 hc_static_err_offset = 2
1252 };
1254 static int static_in_offset;
1255 static int static_out_offset;
1256 static int static_err_offset;
1258 public:
1259 static int in_offset_in_bytes();
1260 static int out_offset_in_bytes();
1261 static int err_offset_in_bytes();
1263 // Debugging
1264 friend class JavaClasses;
1265 };
1268 // Interface to java.lang.StackTraceElement objects
1270 class java_lang_StackTraceElement: AllStatic {
1271 private:
1272 enum {
1273 hc_declaringClass_offset = 0,
1274 hc_methodName_offset = 1,
1275 hc_fileName_offset = 2,
1276 hc_lineNumber_offset = 3
1277 };
1279 static int declaringClass_offset;
1280 static int methodName_offset;
1281 static int fileName_offset;
1282 static int lineNumber_offset;
1284 public:
1285 // Setters
1286 static void set_declaringClass(oop element, oop value);
1287 static void set_methodName(oop element, oop value);
1288 static void set_fileName(oop element, oop value);
1289 static void set_lineNumber(oop element, int value);
1291 // Create an instance of StackTraceElement
1292 static oop create(methodHandle m, int bci, TRAPS);
1294 // Debugging
1295 friend class JavaClasses;
1296 };
1299 // Interface to java.lang.AssertionStatusDirectives objects
1301 class java_lang_AssertionStatusDirectives: AllStatic {
1302 private:
1303 enum {
1304 hc_classes_offset,
1305 hc_classEnabled_offset,
1306 hc_packages_offset,
1307 hc_packageEnabled_offset,
1308 hc_deflt_offset
1309 };
1311 static int classes_offset;
1312 static int classEnabled_offset;
1313 static int packages_offset;
1314 static int packageEnabled_offset;
1315 static int deflt_offset;
1317 public:
1318 // Setters
1319 static void set_classes(oop obj, oop val);
1320 static void set_classEnabled(oop obj, oop val);
1321 static void set_packages(oop obj, oop val);
1322 static void set_packageEnabled(oop obj, oop val);
1323 static void set_deflt(oop obj, bool val);
1324 // Debugging
1325 friend class JavaClasses;
1326 };
1329 class java_nio_Buffer: AllStatic {
1330 private:
1331 static int _limit_offset;
1333 public:
1334 static int limit_offset();
1335 static void compute_offsets();
1336 };
1338 class sun_misc_AtomicLongCSImpl: AllStatic {
1339 private:
1340 static int _value_offset;
1342 public:
1343 static int value_offset();
1344 static void compute_offsets();
1345 };
1347 class java_util_concurrent_locks_AbstractOwnableSynchronizer : AllStatic {
1348 private:
1349 static int _owner_offset;
1350 public:
1351 static void initialize(TRAPS);
1352 static oop get_owner_threadObj(oop obj);
1353 };
1355 // Use to declare fields that need to be injected into Java classes
1356 // for the JVM to use. The name_index and signature_index are
1357 // declared in vmSymbols. The may_be_java flag is used to declare
1358 // fields that might already exist in Java but should be injected if
1359 // they don't. Otherwise the field is unconditionally injected and
1360 // the JVM uses the injected one. This is to ensure that name
1361 // collisions don't occur. In general may_be_java should be false
1362 // unless there's a good reason.
1364 class InjectedField {
1365 public:
1366 const SystemDictionary::WKID klass_id;
1367 const vmSymbols::SID name_index;
1368 const vmSymbols::SID signature_index;
1369 const bool may_be_java;
1372 klassOop klass() const { return SystemDictionary::well_known_klass(klass_id); }
1373 Symbol* name() const { return lookup_symbol(name_index); }
1374 Symbol* signature() const { return lookup_symbol(signature_index); }
1376 int compute_offset();
1378 // Find the Symbol for this index
1379 static Symbol* lookup_symbol(int symbol_index) {
1380 return vmSymbols::symbol_at((vmSymbols::SID)symbol_index);
1381 }
1382 };
1384 #define DECLARE_INJECTED_FIELD_ENUM(klass, name, signature, may_be_java) \
1385 klass##_##name##_enum,
1387 #define ALL_INJECTED_FIELDS(macro) \
1388 CLASS_INJECTED_FIELDS(macro) \
1389 METHODHANDLE_INJECTED_FIELDS(macro) \
1390 DIRECTMETHODHANDLE_INJECTED_FIELDS(macro) \
1391 MEMBERNAME_INJECTED_FIELDS(macro) \
1392 METHODTYPEFORM_INJECTED_FIELDS(macro)
1394 // Interface to hard-coded offset checking
1396 class JavaClasses : AllStatic {
1397 private:
1399 static InjectedField _injected_fields[];
1401 static bool check_offset(const char *klass_name, int offset, const char *field_name, const char* field_sig) PRODUCT_RETURN0;
1402 static bool check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) PRODUCT_RETURN0;
1403 static bool check_constant(const char *klass_name, int constant, const char *field_name, const char* field_sig) PRODUCT_RETURN0;
1405 public:
1406 enum InjectedFieldID {
1407 ALL_INJECTED_FIELDS(DECLARE_INJECTED_FIELD_ENUM)
1408 MAX_enum
1409 };
1411 static int compute_injected_offset(InjectedFieldID id);
1413 static void compute_hard_coded_offsets();
1414 static void compute_offsets();
1415 static void check_offsets() PRODUCT_RETURN;
1417 static InjectedField* get_injected(Symbol* class_name, int* field_count);
1418 };
1420 #undef DECLARE_INJECTED_FIELD_ENUM
1422 #endif // SHARE_VM_CLASSFILE_JAVACLASSES_HPP