1 /*
2 * Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved.
3 * Copyright (c) 2015-2018, Azul Systems, Inc. All rights reserved.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 *
24 */
25
26 #ifndef SHARE_VM_CLASSFILE_JAVACLASSES_HPP
27 #define SHARE_VM_CLASSFILE_JAVACLASSES_HPP
28
29 #include "classfile/systemDictionary.hpp"
30 #include "jvmtifiles/jvmti.h"
31 #include "oops/oop.hpp"
32 #include "runtime/os.hpp"
33 #include "utilities/utf8.hpp"
34
35 // Interface for manipulating the basic Java classes.
36 //
37 // All dependencies on layout of actual Java classes should be kept here.
38 // If the layout of any of the classes above changes the offsets must be adjusted.
39 //
40 // For most classes we hardwire the offsets for performance reasons. In certain
41 // cases (e.g. java.security.AccessControlContext) we compute the offsets at
42 // startup since the layout here differs between JDK1.2 and JDK1.3.
43 //
44 // Note that fields (static and non-static) are arranged with oops before non-oops
45 // on a per class basis. The offsets below have to reflect this ordering.
46 //
47 // When editing the layouts please update the check_offset verification code
48 // correspondingly. The names in the enums must be identical to the actual field
49 // names in order for the verification code to work.
50
51
52 // Interface to java.lang.String objects
53
54 class java_lang_String : AllStatic {
55 private:
56 static int value_offset;
57 static int hash_offset;
58 static int coder_offset;
59
60 static bool initialized;
61
62 static Handle basic_create(int length, bool byte_arr, TRAPS);
63
64 static inline void set_coder(oop string, jbyte coder);
65
66 public:
67
68 // Coders
69 enum Coder {
70 CODER_LATIN1 = 0,
71 CODER_UTF16 = 1
72 };
73
74 static void compute_offsets();
75 static void serialize(SerializeClosure* f) NOT_CDS_RETURN;
76
77 // Instance creation
78 static Handle create_from_unicode(jchar* unicode, int len, TRAPS);
79 static oop create_oop_from_unicode(jchar* unicode, int len, TRAPS);
80 static Handle create_from_str(const char* utf8_str, TRAPS);
81 static oop create_oop_from_str(const char* utf8_str, TRAPS);
82 static Handle create_from_symbol(Symbol* symbol, TRAPS);
83 static Handle create_from_platform_dependent_str(const char* str, TRAPS);
84 static Handle char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS);
85
86 static void set_compact_strings(bool value);
87
88 static int value_offset_in_bytes() {
89 assert(initialized && (value_offset > 0), "Must be initialized");
90 return value_offset;
91 }
92 static int hash_offset_in_bytes() {
93 assert(initialized && (hash_offset > 0), "Must be initialized");
94 return hash_offset;
95 }
96 static int coder_offset_in_bytes() {
97 assert(initialized && (coder_offset > 0), "Must be initialized");
98 return coder_offset;
99 }
100
101 static inline void set_value_raw(oop string, typeArrayOop buffer);
102 static inline void set_value(oop string, typeArrayOop buffer);
103 static inline void set_hash(oop string, unsigned int hash);
104
105 // Accessors
106 static inline typeArrayOop value(oop java_string);
107 static inline typeArrayOop value_no_keepalive(oop java_string);
108 static inline unsigned int hash(oop java_string);
109 static inline bool is_latin1(oop java_string);
110 static inline int length(oop java_string);
111 static int utf8_length(oop java_string);
112
113 // String converters
114 static char* as_utf8_string(oop java_string);
115 static char* as_utf8_string(oop java_string, char* buf, int buflen);
116 static char* as_utf8_string(oop java_string, int start, int len);
117 static char* as_utf8_string(oop java_string, int start, int len, char* buf, int buflen);
118 static char* as_platform_dependent_str(Handle java_string, TRAPS);
119 static jchar* as_unicode_string(oop java_string, int& length, TRAPS);
120 // produce an ascii string with all other values quoted using \u####
121 static char* as_quoted_ascii(oop java_string);
122
123 // Compute the hash value for a java.lang.String object which would
124 // contain the characters passed in.
125 //
126 // As the hash value used by the String object itself, in
127 // String.hashCode(). This value is normally calculated in Java code
128 // in the String.hashCode method(), but is precomputed for String
129 // objects in the shared archive file.
130 // hash P(31) from Kernighan & Ritchie
131 //
132 // For this reason, THIS ALGORITHM MUST MATCH String.hashCode().
133 static unsigned int hash_code(const jchar* s, int len) {
134 unsigned int h = 0;
135 while (len-- > 0) {
136 h = 31*h + (unsigned int) *s;
137 s++;
138 }
139 return h;
140 }
141
142 static unsigned int hash_code(const jbyte* s, int len) {
143 unsigned int h = 0;
144 while (len-- > 0) {
145 h = 31*h + (((unsigned int) *s) & 0xFF);
146 s++;
147 }
148 return h;
149 }
150
151 static unsigned int hash_code(oop java_string);
152
153 static bool equals(oop java_string, jchar* chars, int len);
154 static bool equals(oop str1, oop str2);
155
156 // Conversion between '.' and '/' formats
157 static Handle externalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '/', '.', THREAD); }
158 static Handle internalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '.', '/', THREAD); }
159
160 // Conversion
161 static Symbol* as_symbol(oop java_string, TRAPS);
162 static Symbol* as_symbol_or_null(oop java_string);
163
164 // Testers
165 static bool is_instance(oop obj);
166 static inline bool is_instance_inlined(oop obj);
167
168 // Debugging
169 static void print(oop java_string, outputStream* st);
170 friend class JavaClasses;
171 friend class StringTable;
172 };
173
174
175 // Interface to java.lang.Class objects
176
177 #define CLASS_INJECTED_FIELDS(macro) \
178 macro(java_lang_Class, klass, intptr_signature, false) \
179 macro(java_lang_Class, array_klass, intptr_signature, false) \
180 macro(java_lang_Class, oop_size, int_signature, false) \
181 macro(java_lang_Class, static_oop_field_count, int_signature, false) \
182 macro(java_lang_Class, protection_domain, object_signature, false) \
183 macro(java_lang_Class, signers, object_signature, false)
184
185 class java_lang_Class : AllStatic {
186 friend class VMStructs;
187 friend class JVMCIVMStructs;
188
189 private:
190 // The fake offsets are added by the class loader when java.lang.Class is loaded
191
192 static int _klass_offset;
193 static int _array_klass_offset;
194
195 static int _oop_size_offset;
196 static int _static_oop_field_count_offset;
197
198 static int _protection_domain_offset;
199 static int _init_lock_offset;
200 static int _signers_offset;
201 static int _class_loader_offset;
202 static int _module_offset;
203 static int _component_mirror_offset;
204
205 static bool offsets_computed;
206 static int classRedefinedCount_offset;
207
208 static GrowableArray<Klass*>* _fixup_mirror_list;
209 static GrowableArray<Klass*>* _fixup_module_field_list;
210
211 static void set_init_lock(oop java_class, oop init_lock);
212 static void set_protection_domain(oop java_class, oop protection_domain);
213 static void set_class_loader(oop java_class, oop class_loader);
214 static void set_component_mirror(oop java_class, oop comp_mirror);
215 static void initialize_mirror_fields(Klass* k, Handle mirror, Handle protection_domain, TRAPS);
216 static void set_mirror_module_field(Klass* K, Handle mirror, Handle module, TRAPS);
217 public:
218 static void allocate_fixup_lists();
219 static void compute_offsets();
220
221 // Instance creation
222 static void create_mirror(Klass* k, Handle class_loader, Handle module,
223 Handle protection_domain, TRAPS);
224 static void fixup_mirror(Klass* k, TRAPS);
225 static oop create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS);
226
227 // Archiving
228 static void serialize(SerializeClosure* f) NOT_CDS_RETURN;
229 static void archive_basic_type_mirrors(TRAPS) NOT_CDS_JAVA_HEAP_RETURN;
230 static oop archive_mirror(Klass* k, TRAPS) NOT_CDS_JAVA_HEAP_RETURN_(NULL);
231 static oop process_archived_mirror(Klass* k, oop mirror, oop archived_mirror, Thread *THREAD)
232 NOT_CDS_JAVA_HEAP_RETURN_(NULL);
233 static bool restore_archived_mirror(Klass *k, Handle class_loader, Handle module,
234 Handle protection_domain,
235 TRAPS) NOT_CDS_JAVA_HEAP_RETURN_(false);
236
237 static void fixup_module_field(Klass* k, Handle module);
238
239 // Conversion
240 static Klass* as_Klass(oop java_class);
241 static void set_klass(oop java_class, Klass* klass);
242 static BasicType as_BasicType(oop java_class, Klass** reference_klass = NULL);
243 static Symbol* as_signature(oop java_class, bool intern_if_not_found, TRAPS);
244 static void print_signature(oop java_class, outputStream *st);
245 static const char* as_external_name(oop java_class);
246 // Testing
247 static bool is_instance(oop obj);
248
249 static bool is_primitive(oop java_class);
250 static BasicType primitive_type(oop java_class);
251 static oop primitive_mirror(BasicType t);
252 // JVM_NewArray support
253 static Klass* array_klass_acquire(oop java_class);
254 static void release_set_array_klass(oop java_class, Klass* klass);
255 // compiler support for class operations
256 static int klass_offset_in_bytes() { return _klass_offset; }
257 static int array_klass_offset_in_bytes() { return _array_klass_offset; }
258 // Support for classRedefinedCount field
259 static int classRedefinedCount(oop the_class_mirror);
260 static void set_classRedefinedCount(oop the_class_mirror, int value);
261
262 // Support for embedded per-class oops
263 static oop protection_domain(oop java_class);
264 static oop init_lock(oop java_class);
265 static oop component_mirror(oop java_class);
266 static objArrayOop signers(oop java_class);
267 static void set_signers(oop java_class, objArrayOop signers);
268
269 static oop class_loader(oop java_class);
270 static void set_module(oop java_class, oop module);
271 static oop module(oop java_class);
272
273 static int oop_size(oop java_class);
274 static void set_oop_size(HeapWord* java_class, int size);
275 static int static_oop_field_count(oop java_class);
276 static void set_static_oop_field_count(oop java_class, int size);
277
278 static GrowableArray<Klass*>* fixup_mirror_list() {
279 return _fixup_mirror_list;
280 }
281 static void set_fixup_mirror_list(GrowableArray<Klass*>* v) {
282 _fixup_mirror_list = v;
283 }
284
285 static GrowableArray<Klass*>* fixup_module_field_list() {
286 return _fixup_module_field_list;
287 }
288 static void set_fixup_module_field_list(GrowableArray<Klass*>* v) {
289 _fixup_module_field_list = v;
290 }
291
292 // Debugging
293 friend class JavaClasses;
294 friend class InstanceKlass; // verification code accesses offsets
295 friend class ClassFileParser; // access to number_of_fake_fields
296 };
297
298 // Interface to java.lang.Thread objects
299
300 class java_lang_Thread : AllStatic {
301 private:
302 // Note that for this class the layout changed between JDK1.2 and JDK1.3,
303 // so we compute the offsets at startup rather than hard-wiring them.
304 static int _name_offset;
305 static int _group_offset;
306 static int _contextClassLoader_offset;
307 static int _inheritedAccessControlContext_offset;
308 static int _priority_offset;
309 static int _eetop_offset;
310 static int _daemon_offset;
311 static int _stillborn_offset;
312 static int _stackSize_offset;
313 static int _tid_offset;
314 static int _thread_status_offset;
315 static int _park_blocker_offset;
316 static int _park_event_offset ;
317
318 static void compute_offsets();
319
320 public:
321 static void serialize(SerializeClosure* f) NOT_CDS_RETURN;
322
323 // Instance creation
324 static oop create();
325 // Returns the JavaThread associated with the thread obj
326 static JavaThread* thread(oop java_thread);
327 // Set JavaThread for instance
328 static void set_thread(oop java_thread, JavaThread* thread);
329 // Name
330 static oop name(oop java_thread);
331 static void set_name(oop java_thread, oop name);
332 // Priority
333 static ThreadPriority priority(oop java_thread);
334 static void set_priority(oop java_thread, ThreadPriority priority);
335 // Thread group
336 static oop threadGroup(oop java_thread);
337 // Stillborn
338 static bool is_stillborn(oop java_thread);
339 static void set_stillborn(oop java_thread);
340 // Alive (NOTE: this is not really a field, but provides the correct
341 // definition without doing a Java call)
342 static bool is_alive(oop java_thread);
343 // Daemon
344 static bool is_daemon(oop java_thread);
345 static void set_daemon(oop java_thread);
346 // Context ClassLoader
347 static oop context_class_loader(oop java_thread);
348 // Control context
349 static oop inherited_access_control_context(oop java_thread);
350 // Stack size hint
351 static jlong stackSize(oop java_thread);
352 // Thread ID
353 static jlong thread_id(oop java_thread);
354
355 // Blocker object responsible for thread parking
356 static oop park_blocker(oop java_thread);
357
358 // Pointer to type-stable park handler, encoded as jlong.
359 // Should be set when apparently null
360 // For details, see unsafe.cpp Unsafe_Unpark
361 static jlong park_event(oop java_thread);
362 static bool set_park_event(oop java_thread, jlong ptr);
363
364 // Java Thread Status for JVMTI and M&M use.
365 // This thread status info is saved in threadStatus field of
366 // java.lang.Thread java class.
367 enum ThreadStatus {
368 NEW = 0,
369 RUNNABLE = JVMTI_THREAD_STATE_ALIVE + // runnable / running
370 JVMTI_THREAD_STATE_RUNNABLE,
371 SLEEPING = JVMTI_THREAD_STATE_ALIVE + // Thread.sleep()
372 JVMTI_THREAD_STATE_WAITING +
373 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT +
374 JVMTI_THREAD_STATE_SLEEPING,
375 IN_OBJECT_WAIT = JVMTI_THREAD_STATE_ALIVE + // Object.wait()
376 JVMTI_THREAD_STATE_WAITING +
377 JVMTI_THREAD_STATE_WAITING_INDEFINITELY +
378 JVMTI_THREAD_STATE_IN_OBJECT_WAIT,
379 IN_OBJECT_WAIT_TIMED = JVMTI_THREAD_STATE_ALIVE + // Object.wait(long)
380 JVMTI_THREAD_STATE_WAITING +
381 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT +
382 JVMTI_THREAD_STATE_IN_OBJECT_WAIT,
383 PARKED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park()
384 JVMTI_THREAD_STATE_WAITING +
385 JVMTI_THREAD_STATE_WAITING_INDEFINITELY +
386 JVMTI_THREAD_STATE_PARKED,
387 PARKED_TIMED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park(long)
388 JVMTI_THREAD_STATE_WAITING +
389 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT +
390 JVMTI_THREAD_STATE_PARKED,
391 BLOCKED_ON_MONITOR_ENTER = JVMTI_THREAD_STATE_ALIVE + // (re-)entering a synchronization block
392 JVMTI_THREAD_STATE_BLOCKED_ON_MONITOR_ENTER,
393 TERMINATED = JVMTI_THREAD_STATE_TERMINATED
394 };
395 // Write thread status info to threadStatus field of java.lang.Thread.
396 static void set_thread_status(oop java_thread_oop, ThreadStatus status);
397 // Read thread status info from threadStatus field of java.lang.Thread.
398 static ThreadStatus get_thread_status(oop java_thread_oop);
399
400 static const char* thread_status_name(oop java_thread_oop);
401
402 // Debugging
403 friend class JavaClasses;
404 };
405
406 // Interface to java.lang.ThreadGroup objects
407
408 class java_lang_ThreadGroup : AllStatic {
409 private:
410 static int _parent_offset;
411 static int _name_offset;
412 static int _threads_offset;
413 static int _groups_offset;
414 static int _maxPriority_offset;
415 static int _destroyed_offset;
416 static int _daemon_offset;
417 static int _nthreads_offset;
418 static int _ngroups_offset;
419
420 static void compute_offsets();
421
422 public:
423 static void serialize(SerializeClosure* f) NOT_CDS_RETURN;
424
425 // parent ThreadGroup
426 static oop parent(oop java_thread_group);
427 // name
428 static const char* name(oop java_thread_group);
429 // ("name as oop" accessor is not necessary)
430 // Number of threads in group
431 static int nthreads(oop java_thread_group);
432 // threads
433 static objArrayOop threads(oop java_thread_group);
434 // Number of threads in group
435 static int ngroups(oop java_thread_group);
436 // groups
437 static objArrayOop groups(oop java_thread_group);
438 // maxPriority in group
439 static ThreadPriority maxPriority(oop java_thread_group);
440 // Destroyed
441 static bool is_destroyed(oop java_thread_group);
442 // Daemon
443 static bool is_daemon(oop java_thread_group);
444 // Debugging
445 friend class JavaClasses;
446 };
447
448
449
450 // Interface to java.lang.Throwable objects
451
452 class java_lang_Throwable: AllStatic {
453 friend class BacktraceBuilder;
454 friend class BacktraceIterator;
455
456 private:
457 // Offsets
458 enum {
459 hc_backtrace_offset = 0,
460 hc_detailMessage_offset = 1,
461 hc_cause_offset = 2, // New since 1.4
462 hc_stackTrace_offset = 3 // New since 1.4
463 };
464 // Trace constants
465 enum {
466 trace_methods_offset = 0,
467 trace_bcis_offset = 1,
468 trace_mirrors_offset = 2,
469 trace_names_offset = 3,
470 trace_next_offset = 4,
471 trace_size = 5,
472 trace_chunk_size = 32
473 };
474
475 static int backtrace_offset;
476 static int detailMessage_offset;
477 static int stackTrace_offset;
478 static int depth_offset;
479 static int static_unassigned_stacktrace_offset;
480
481 // StackTrace (programmatic access, new since 1.4)
482 static void clear_stacktrace(oop throwable);
483 // Stacktrace (post JDK 1.7.0 to allow immutability protocol to be followed)
484 static void set_stacktrace(oop throwable, oop st_element_array);
485 static oop unassigned_stacktrace();
486
487 public:
488 // Backtrace
489 static oop backtrace(oop throwable);
490 static void set_backtrace(oop throwable, oop value);
491 static int depth(oop throwable);
492 static void set_depth(oop throwable, int value);
493 // Needed by JVMTI to filter out this internal field.
494 static int get_backtrace_offset() { return backtrace_offset;}
495 static int get_detailMessage_offset() { return detailMessage_offset;}
496 // Message
497 static oop message(oop throwable);
498 static void set_message(oop throwable, oop value);
499 static Symbol* detail_message(oop throwable);
500 static void print_stack_element(outputStream *st, const methodHandle& method, int bci);
501 static void print_stack_usage(Handle stream);
502
503 static void compute_offsets();
504 static void serialize(SerializeClosure* f) NOT_CDS_RETURN;
505
506 // Allocate space for backtrace (created but stack trace not filled in)
507 static void allocate_backtrace(Handle throwable, TRAPS);
508 // Fill in current stack trace for throwable with preallocated backtrace (no GC)
509 static void fill_in_stack_trace_of_preallocated_backtrace(Handle throwable);
510 // Fill in current stack trace, can cause GC
511 static void fill_in_stack_trace(Handle throwable, const methodHandle& method, TRAPS);
512 static void fill_in_stack_trace(Handle throwable, const methodHandle& method = methodHandle());
513 // Programmatic access to stack trace
514 static void get_stack_trace_elements(Handle throwable, objArrayHandle stack_trace, TRAPS);
515 // Printing
516 static void print(oop throwable, outputStream* st);
517 static void print_stack_trace(Handle throwable, outputStream* st);
518 static void java_printStackTrace(Handle throwable, TRAPS);
519 // Debugging
520 friend class JavaClasses;
521 };
522
523
524 // Interface to java.lang.reflect.AccessibleObject objects
525
526 class java_lang_reflect_AccessibleObject: AllStatic {
527 private:
528 // Note that to reduce dependencies on the JDK we compute these
529 // offsets at run-time.
530 static int override_offset;
531
532 static void compute_offsets();
533
534 public:
535 static void serialize(SerializeClosure* f) NOT_CDS_RETURN;
536
537 // Accessors
538 static jboolean override(oop reflect);
539 static void set_override(oop reflect, jboolean value);
540
541 // Debugging
542 friend class JavaClasses;
543 };
544
545
546 // Interface to java.lang.reflect.Method objects
547
548 class java_lang_reflect_Method : public java_lang_reflect_AccessibleObject {
549 private:
550 // Note that to reduce dependencies on the JDK we compute these
551 // offsets at run-time.
552 static int clazz_offset;
553 static int name_offset;
554 static int returnType_offset;
555 static int parameterTypes_offset;
556 static int exceptionTypes_offset;
557 static int slot_offset;
558 static int modifiers_offset;
559 static int signature_offset;
560 static int annotations_offset;
561 static int parameter_annotations_offset;
562 static int annotation_default_offset;
563 static int type_annotations_offset;
564
565 static void compute_offsets();
566
567 public:
568 static void serialize(SerializeClosure* f) NOT_CDS_RETURN;
569
570 // Allocation
571 static Handle create(TRAPS);
572
573 // Accessors
574 static oop clazz(oop reflect);
575 static void set_clazz(oop reflect, oop value);
576
577 static oop name(oop method);
578 static void set_name(oop method, oop value);
579
580 static oop return_type(oop method);
581 static void set_return_type(oop method, oop value);
582
583 static oop parameter_types(oop method);
584 static void set_parameter_types(oop method, oop value);
585
586 static oop exception_types(oop method);
587 static void set_exception_types(oop method, oop value);
588
589 static int slot(oop reflect);
590 static void set_slot(oop reflect, int value);
591
592 static int modifiers(oop method);
593 static void set_modifiers(oop method, int value);
594
595 static bool has_signature_field();
596 static oop signature(oop method);
597 static void set_signature(oop method, oop value);
598
599 static bool has_annotations_field();
600 static oop annotations(oop method);
601 static void set_annotations(oop method, oop value);
602
603 static bool has_parameter_annotations_field();
604 static oop parameter_annotations(oop method);
605 static void set_parameter_annotations(oop method, oop value);
606
607 static bool has_annotation_default_field();
608 static oop annotation_default(oop method);
609 static void set_annotation_default(oop method, oop value);
610
611 static bool has_type_annotations_field();
612 static oop type_annotations(oop method);
613 static void set_type_annotations(oop method, oop value);
614
615 // Debugging
616 friend class JavaClasses;
617 };
618
619
620 // Interface to java.lang.reflect.Constructor objects
621
622 class java_lang_reflect_Constructor : public java_lang_reflect_AccessibleObject {
623 private:
624 // Note that to reduce dependencies on the JDK we compute these
625 // offsets at run-time.
626 static int clazz_offset;
627 static int parameterTypes_offset;
628 static int exceptionTypes_offset;
629 static int slot_offset;
630 static int modifiers_offset;
631 static int signature_offset;
632 static int annotations_offset;
633 static int parameter_annotations_offset;
634 static int type_annotations_offset;
635
636 static void compute_offsets();
637
638 public:
639 static void serialize(SerializeClosure* f) NOT_CDS_RETURN;
640
641 // Allocation
642 static Handle create(TRAPS);
643
644 // Accessors
645 static oop clazz(oop reflect);
646 static void set_clazz(oop reflect, oop value);
647
648 static oop parameter_types(oop constructor);
649 static void set_parameter_types(oop constructor, oop value);
650
651 static oop exception_types(oop constructor);
652 static void set_exception_types(oop constructor, oop value);
653
654 static int slot(oop reflect);
655 static void set_slot(oop reflect, int value);
656
657 static int modifiers(oop constructor);
658 static void set_modifiers(oop constructor, int value);
659
660 static bool has_signature_field();
661 static oop signature(oop constructor);
662 static void set_signature(oop constructor, oop value);
663
664 static bool has_annotations_field();
665 static oop annotations(oop constructor);
666 static void set_annotations(oop constructor, oop value);
667
668 static bool has_parameter_annotations_field();
669 static oop parameter_annotations(oop method);
670 static void set_parameter_annotations(oop method, oop value);
671
672 static bool has_type_annotations_field();
673 static oop type_annotations(oop constructor);
674 static void set_type_annotations(oop constructor, oop value);
675
676 // Debugging
677 friend class JavaClasses;
678 };
679
680
681 // Interface to java.lang.reflect.Field objects
682
683 class java_lang_reflect_Field : public java_lang_reflect_AccessibleObject {
684 private:
685 // Note that to reduce dependencies on the JDK we compute these
686 // offsets at run-time.
687 static int clazz_offset;
688 static int name_offset;
689 static int type_offset;
690 static int slot_offset;
691 static int modifiers_offset;
692 static int signature_offset;
693 static int annotations_offset;
694 static int type_annotations_offset;
695
696 static void compute_offsets();
697
698 public:
699 static void serialize(SerializeClosure* f) NOT_CDS_RETURN;
700
701 // Allocation
702 static Handle create(TRAPS);
703
704 // Accessors
705 static oop clazz(oop reflect);
706 static void set_clazz(oop reflect, oop value);
707
708 static oop name(oop field);
709 static void set_name(oop field, oop value);
710
711 static oop type(oop field);
712 static void set_type(oop field, oop value);
713
714 static int slot(oop reflect);
715 static void set_slot(oop reflect, int value);
716
717 static int modifiers(oop field);
718 static void set_modifiers(oop field, int value);
719
720 static bool has_signature_field();
721 static oop signature(oop constructor);
722 static void set_signature(oop constructor, oop value);
723
724 static bool has_annotations_field();
725 static oop annotations(oop constructor);
726 static void set_annotations(oop constructor, oop value);
727
728 static bool has_parameter_annotations_field();
729 static oop parameter_annotations(oop method);
730 static void set_parameter_annotations(oop method, oop value);
731
732 static bool has_annotation_default_field();
733 static oop annotation_default(oop method);
734 static void set_annotation_default(oop method, oop value);
735
736 static bool has_type_annotations_field();
737 static oop type_annotations(oop field);
738 static void set_type_annotations(oop field, oop value);
739
740 // Debugging
741 friend class JavaClasses;
742 };
743
744 class java_lang_reflect_Parameter {
745 private:
746 // Note that to reduce dependencies on the JDK we compute these
747 // offsets at run-time.
748 static int name_offset;
749 static int modifiers_offset;
750 static int index_offset;
751 static int executable_offset;
752
753 static void compute_offsets();
754
755 public:
756 static void serialize(SerializeClosure* f) NOT_CDS_RETURN;
757
758 // Allocation
759 static Handle create(TRAPS);
760
761 // Accessors
762 static oop name(oop field);
763 static void set_name(oop field, oop value);
764
765 static int index(oop reflect);
766 static void set_index(oop reflect, int value);
767
768 static int modifiers(oop reflect);
769 static void set_modifiers(oop reflect, int value);
770
771 static oop executable(oop constructor);
772 static void set_executable(oop constructor, oop value);
773
774 friend class JavaClasses;
775 };
776
777 #define MODULE_INJECTED_FIELDS(macro) \
778 macro(java_lang_Module, module_entry, intptr_signature, false)
779
780 class java_lang_Module {
781 private:
782 static int loader_offset;
783 static int name_offset;
784 static int _module_entry_offset;
785 static void compute_offsets();
786
787 public:
788 static void serialize(SerializeClosure* f) NOT_CDS_RETURN;
789
790 // Allocation
791 static Handle create(Handle loader, Handle module_name, TRAPS);
792
793 // Testers
794 static bool is_instance(oop obj);
795
796 // Accessors
797 static oop loader(oop module);
798 static void set_loader(oop module, oop value);
799
800 static oop name(oop module);
801 static void set_name(oop module, oop value);
802
803 static ModuleEntry* module_entry(oop module);
804 static void set_module_entry(oop module, ModuleEntry* module_entry);
805
806 friend class JavaClasses;
807 };
808
809 // Interface to jdk.internal.reflect.ConstantPool objects
810 class reflect_ConstantPool {
811 private:
812 // Note that to reduce dependencies on the JDK we compute these
813 // offsets at run-time.
814 static int _oop_offset;
815
816 static void compute_offsets();
817
818 public:
819 static void serialize(SerializeClosure* f) NOT_CDS_RETURN;
820
821 // Allocation
822 static Handle create(TRAPS);
823
824 // Accessors
825 static void set_cp(oop reflect, ConstantPool* value);
826 static int oop_offset() {
827 return _oop_offset;
828 }
829
830 static ConstantPool* get_cp(oop reflect);
831
832 // Debugging
833 friend class JavaClasses;
834 };
835
836 // Interface to jdk.internal.reflect.UnsafeStaticFieldAccessorImpl objects
837 class reflect_UnsafeStaticFieldAccessorImpl {
838 private:
839 static int _base_offset;
840 static void compute_offsets();
841
842 public:
843 static void serialize(SerializeClosure* f) NOT_CDS_RETURN;
844
845 static int base_offset() {
846 return _base_offset;
847 }
848
849 // Debugging
850 friend class JavaClasses;
851 };
852
853 // Interface to java.lang primitive type boxing objects:
854 // - java.lang.Boolean
855 // - java.lang.Character
856 // - java.lang.Float
857 // - java.lang.Double
858 // - java.lang.Byte
859 // - java.lang.Short
860 // - java.lang.Integer
861 // - java.lang.Long
862
863 // This could be separated out into 8 individual classes.
864
865 class java_lang_boxing_object: AllStatic {
866 private:
867 enum {
868 hc_value_offset = 0
869 };
870 static int value_offset;
871 static int long_value_offset;
872
873 static oop initialize_and_allocate(BasicType type, TRAPS);
874 public:
875 // Allocation. Returns a boxed value, or NULL for invalid type.
876 static oop create(BasicType type, jvalue* value, TRAPS);
877 // Accessors. Returns the basic type being boxed, or T_ILLEGAL for invalid oop.
878 static BasicType get_value(oop box, jvalue* value);
879 static BasicType set_value(oop box, jvalue* value);
880 static BasicType basic_type(oop box);
881 static bool is_instance(oop box) { return basic_type(box) != T_ILLEGAL; }
882 static bool is_instance(oop box, BasicType type) { return basic_type(box) == type; }
883 static void print(oop box, outputStream* st) { jvalue value; print(get_value(box, &value), &value, st); }
884 static void print(BasicType type, jvalue* value, outputStream* st);
885
886 static int value_offset_in_bytes(BasicType type) {
887 return ( type == T_LONG || type == T_DOUBLE ) ? long_value_offset :
888 value_offset;
889 }
890
891 // Debugging
892 friend class JavaClasses;
893 };
894
895
896
897 // Interface to java.lang.ref.Reference objects
898
899 class java_lang_ref_Reference: AllStatic {
900 public:
901 enum {
902 hc_referent_offset = 0,
903 hc_queue_offset = 1,
904 hc_next_offset = 2,
905 hc_discovered_offset = 3 // Is not last, see SoftRefs.
906 };
907
908 static int referent_offset;
909 static int queue_offset;
910 static int next_offset;
911 static int discovered_offset;
912
913 // Accessors
914 static inline oop referent(oop ref);
915 static inline void set_referent(oop ref, oop value);
916 static inline void set_referent_raw(oop ref, oop value);
917 static inline HeapWord* referent_addr_raw(oop ref);
918 static inline oop next(oop ref);
919 static inline void set_next(oop ref, oop value);
920 static inline void set_next_raw(oop ref, oop value);
921 static inline HeapWord* next_addr_raw(oop ref);
922 static inline oop discovered(oop ref);
923 static inline void set_discovered(oop ref, oop value);
924 static inline void set_discovered_raw(oop ref, oop value);
925 static inline HeapWord* discovered_addr_raw(oop ref);
926 static inline oop queue(oop ref);
927 static inline void set_queue(oop ref, oop value);
928 static bool is_referent_field(oop obj, ptrdiff_t offset);
929 static inline bool is_phantom(oop ref);
930 };
931
932
933 // Interface to java.lang.ref.SoftReference objects
934
935 class java_lang_ref_SoftReference: public java_lang_ref_Reference {
936 public:
937 static int timestamp_offset;
938 static int static_clock_offset;
939
940 // Accessors
941 static jlong timestamp(oop ref);
942
943 // Accessors for statics
944 static jlong clock();
945 static void set_clock(jlong value);
946
947 static void compute_offsets();
948 static void serialize(SerializeClosure* f) NOT_CDS_RETURN;
949 };
950
951 // Interface to java.lang.invoke.MethodHandle objects
952
953 class MethodHandleEntry;
954
955 class java_lang_invoke_MethodHandle: AllStatic {
956 friend class JavaClasses;
957
958 private:
959 static int _type_offset; // the MethodType of this MH
960 static int _form_offset; // the LambdaForm of this MH
961
962 static void compute_offsets();
963
964 public:
965 static void serialize(SerializeClosure* f) NOT_CDS_RETURN;
966
967 // Accessors
968 static oop type(oop mh);
969 static void set_type(oop mh, oop mtype);
970
971 static oop form(oop mh);
972 static void set_form(oop mh, oop lform);
973
974 // Testers
975 static bool is_subclass(Klass* klass) {
976 return klass->is_subclass_of(SystemDictionary::MethodHandle_klass());
977 }
978 static bool is_instance(oop obj);
979
980 // Accessors for code generation:
981 static int type_offset_in_bytes() { return _type_offset; }
982 static int form_offset_in_bytes() { return _form_offset; }
983 };
984
985 // Interface to java.lang.invoke.DirectMethodHandle objects
986
987 class java_lang_invoke_DirectMethodHandle: AllStatic {
988 friend class JavaClasses;
989
990 private:
991 static int _member_offset; // the MemberName of this DMH
992
993 static void compute_offsets();
994
995 public:
996 static void serialize(SerializeClosure* f) NOT_CDS_RETURN;
997
998 // Accessors
999 static oop member(oop mh);
1000
1001 // Testers
1002 static bool is_subclass(Klass* klass) {
1003 return klass->is_subclass_of(SystemDictionary::DirectMethodHandle_klass());
1004 }
1005 static bool is_instance(oop obj);
1006
1007 // Accessors for code generation:
1008 static int member_offset_in_bytes() { return _member_offset; }
1009 };
1010
1011 // Interface to java.lang.invoke.LambdaForm objects
1012 // (These are a private interface for managing adapter code generation.)
1013
1014 class java_lang_invoke_LambdaForm: AllStatic {
1015 friend class JavaClasses;
1016
1017 private:
1018 static int _vmentry_offset; // type is MemberName
1019
1020 static void compute_offsets();
1021
1022 public:
1023 static void serialize(SerializeClosure* f) NOT_CDS_RETURN;
1024
1025 // Accessors
1026 static oop vmentry(oop lform);
1027 static void set_vmentry(oop lform, oop invoker);
1028
1029 // Testers
1030 static bool is_subclass(Klass* klass) {
1031 return SystemDictionary::LambdaForm_klass() != NULL &&
1032 klass->is_subclass_of(SystemDictionary::LambdaForm_klass());
1033 }
1034 static bool is_instance(oop obj);
1035
1036 // Accessors for code generation:
1037 static int vmentry_offset_in_bytes() { return _vmentry_offset; }
1038 };
1039
1040
1041 // Interface to java.lang.invoke.MemberName objects
1042 // (These are a private interface for Java code to query the class hierarchy.)
1043
1044 #define RESOLVEDMETHOD_INJECTED_FIELDS(macro) \
1045 macro(java_lang_invoke_ResolvedMethodName, vmholder, object_signature, false) \
1046 macro(java_lang_invoke_ResolvedMethodName, vmtarget, intptr_signature, false)
1047
1048 class java_lang_invoke_ResolvedMethodName : AllStatic {
1049 friend class JavaClasses;
1050
1051 static int _vmtarget_offset;
1052 static int _vmholder_offset;
1053
1054 static void compute_offsets();
1055 public:
1056 static void serialize(SerializeClosure* f) NOT_CDS_RETURN;
1057
1058 static int vmtarget_offset_in_bytes() { return _vmtarget_offset; }
1059
1060 static Method* vmtarget(oop resolved_method);
1061 static void set_vmtarget(oop resolved_method, Method* method);
1062
1063 // find or create resolved member name
1064 static oop find_resolved_method(const methodHandle& m, TRAPS);
1065
1066 static bool is_instance(oop resolved_method);
1067 };
1068
1069
1070 #define MEMBERNAME_INJECTED_FIELDS(macro) \
1071 macro(java_lang_invoke_MemberName, vmindex, intptr_signature, false)
1072
1073
1074 class java_lang_invoke_MemberName: AllStatic {
1075 friend class JavaClasses;
1076
1077 private:
1078 // From java.lang.invoke.MemberName:
1079 // private Class<?> clazz; // class in which the method is defined
1080 // private String name; // may be null if not yet materialized
1081 // private Object type; // may be null if not yet materialized
1082 // private int flags; // modifier bits; see reflect.Modifier
1083 // private ResolvedMethodName method; // holds VM-specific target value
1084 // private intptr_t vmindex; // member index within class or interface
1085 static int _clazz_offset;
1086 static int _name_offset;
1087 static int _type_offset;
1088 static int _flags_offset;
1089 static int _method_offset;
1090 static int _vmindex_offset;
1091
1092 static void compute_offsets();
1093
1094 public:
1095 static void serialize(SerializeClosure* f) NOT_CDS_RETURN;
1096 // Accessors
1097 static oop clazz(oop mname);
1098 static void set_clazz(oop mname, oop clazz);
1099
1100 static oop type(oop mname);
1101 static void set_type(oop mname, oop type);
1102
1103 static oop name(oop mname);
1104 static void set_name(oop mname, oop name);
1105
1106 static int flags(oop mname);
1107 static void set_flags(oop mname, int flags);
1108
1109 // Link through ResolvedMethodName field to get Method*
1110 static Method* vmtarget(oop mname);
1111 static void set_method(oop mname, oop method);
1112
1113 static intptr_t vmindex(oop mname);
1114 static void set_vmindex(oop mname, intptr_t index);
1115
1116 // Testers
1117 static bool is_subclass(Klass* klass) {
1118 return klass->is_subclass_of(SystemDictionary::MemberName_klass());
1119 }
1120 static bool is_instance(oop obj);
1121
1122 static bool is_method(oop obj);
1123
1124 // Relevant integer codes (keep these in synch. with MethodHandleNatives.Constants):
1125 enum {
1126 MN_IS_METHOD = 0x00010000, // method (not constructor)
1127 MN_IS_CONSTRUCTOR = 0x00020000, // constructor
1128 MN_IS_FIELD = 0x00040000, // field
1129 MN_IS_TYPE = 0x00080000, // nested type
1130 MN_CALLER_SENSITIVE = 0x00100000, // @CallerSensitive annotation detected
1131 MN_REFERENCE_KIND_SHIFT = 24, // refKind
1132 MN_REFERENCE_KIND_MASK = 0x0F000000 >> MN_REFERENCE_KIND_SHIFT,
1133 // The SEARCH_* bits are not for MN.flags but for the matchFlags argument of MHN.getMembers:
1134 MN_SEARCH_SUPERCLASSES = 0x00100000, // walk super classes
1135 MN_SEARCH_INTERFACES = 0x00200000 // walk implemented interfaces
1136 };
1137
1138 // Accessors for code generation:
1139 static int clazz_offset_in_bytes() { return _clazz_offset; }
1140 static int type_offset_in_bytes() { return _type_offset; }
1141 static int name_offset_in_bytes() { return _name_offset; }
1142 static int flags_offset_in_bytes() { return _flags_offset; }
1143 static int method_offset_in_bytes() { return _method_offset; }
1144 static int vmindex_offset_in_bytes() { return _vmindex_offset; }
1145 };
1146
1147
1148 // Interface to java.lang.invoke.MethodType objects
1149
1150 class java_lang_invoke_MethodType: AllStatic {
1151 friend class JavaClasses;
1152
1153 private:
1154 static int _rtype_offset;
1155 static int _ptypes_offset;
1156
1157 static void compute_offsets();
1158
1159 public:
1160 static void serialize(SerializeClosure* f) NOT_CDS_RETURN;
1161 // Accessors
1162 static oop rtype(oop mt);
1163 static objArrayOop ptypes(oop mt);
1164
1165 static oop ptype(oop mt, int index);
1166 static int ptype_count(oop mt);
1167
1168 static int ptype_slot_count(oop mt); // extra counts for long/double
1169 static int rtype_slot_count(oop mt); // extra counts for long/double
1170
1171 static Symbol* as_signature(oop mt, bool intern_if_not_found, TRAPS);
1172 static void print_signature(oop mt, outputStream* st);
1173
1174 static bool is_instance(oop obj);
1175
1176 static bool equals(oop mt1, oop mt2);
1177
1178 // Accessors for code generation:
1179 static int rtype_offset_in_bytes() { return _rtype_offset; }
1180 static int ptypes_offset_in_bytes() { return _ptypes_offset; }
1181 };
1182
1183
1184 // Interface to java.lang.invoke.CallSite objects
1185
1186 class java_lang_invoke_CallSite: AllStatic {
1187 friend class JavaClasses;
1188
1189 private:
1190 static int _target_offset;
1191 static int _context_offset;
1192
1193 static void compute_offsets();
1194
1195 public:
1196 static void serialize(SerializeClosure* f) NOT_CDS_RETURN;
1197 // Accessors
1198 static oop target( oop site);
1199 static void set_target( oop site, oop target);
1200 static void set_target_volatile( oop site, oop target);
1201
1202 static oop context(oop site);
1203
1204 // Testers
1205 static bool is_subclass(Klass* klass) {
1206 return klass->is_subclass_of(SystemDictionary::CallSite_klass());
1207 }
1208 static bool is_instance(oop obj);
1209
1210 // Accessors for code generation:
1211 static int target_offset_in_bytes() { return _target_offset; }
1212 };
1213
1214 // Interface to java.lang.invoke.MethodHandleNatives$CallSiteContext objects
1215
1216 #define CALLSITECONTEXT_INJECTED_FIELDS(macro) \
1217 macro(java_lang_invoke_MethodHandleNatives_CallSiteContext, vmdependencies, intptr_signature, false)
1218
1219 class DependencyContext;
1220
1221 class java_lang_invoke_MethodHandleNatives_CallSiteContext : AllStatic {
1222 friend class JavaClasses;
1223
1224 private:
1225 static int _vmdependencies_offset;
1226
1227 static void compute_offsets();
1228
1229 public:
1230 static void serialize(SerializeClosure* f) NOT_CDS_RETURN;
1231 // Accessors
1232 static DependencyContext vmdependencies(oop context);
1233
1234 // Testers
1235 static bool is_subclass(Klass* klass) {
1236 return klass->is_subclass_of(SystemDictionary::Context_klass());
1237 }
1238 static bool is_instance(oop obj);
1239 };
1240
1241 // Interface to java.security.AccessControlContext objects
1242
1243 class java_security_AccessControlContext: AllStatic {
1244 private:
1245 // Note that for this class the layout changed between JDK1.2 and JDK1.3,
1246 // so we compute the offsets at startup rather than hard-wiring them.
1247 static int _context_offset;
1248 static int _privilegedContext_offset;
1249 static int _isPrivileged_offset;
1250 static int _isAuthorized_offset;
1251
1252 static void compute_offsets();
1253 public:
1254 static void serialize(SerializeClosure* f) NOT_CDS_RETURN;
1255 static oop create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS);
1256
1257 static bool is_authorized(Handle context);
1258
1259 // Debugging/initialization
1260 friend class JavaClasses;
1261 };
1262
1263
1264 // Interface to java.lang.ClassLoader objects
1265
1266 #define CLASSLOADER_INJECTED_FIELDS(macro) \
1267 macro(java_lang_ClassLoader, loader_data, intptr_signature, false)
1268
1269 class java_lang_ClassLoader : AllStatic {
1270 private:
1271 static int _loader_data_offset;
1272 static bool offsets_computed;
1273 static int parent_offset;
1274 static int parallelCapable_offset;
1275 static int name_offset;
1276 static int nameAndId_offset;
1277 static int unnamedModule_offset;
1278
1279 public:
1280 static void compute_offsets();
1281 static void serialize(SerializeClosure* f) NOT_CDS_RETURN;
1282
1283 static ClassLoaderData* loader_data(oop loader);
1284 static ClassLoaderData* cmpxchg_loader_data(ClassLoaderData* new_data, oop loader, ClassLoaderData* expected_data);
1285
1286 static oop parent(oop loader);
1287 static oop name(oop loader);
1288 static oop nameAndId(oop loader);
1289 static bool isAncestor(oop loader, oop cl);
1290
1291 // Support for parallelCapable field
1292 static bool parallelCapable(oop the_class_mirror);
1293
1294 static bool is_trusted_loader(oop loader);
1295
1296 // Return true if this is one of the class loaders associated with
1297 // the generated bytecodes for reflection.
1298 static bool is_reflection_class_loader(oop loader);
1299
1300 // Fix for 4474172
1301 static oop non_reflection_class_loader(oop loader);
1302
1303 // Testers
1304 static bool is_subclass(Klass* klass) {
1305 return klass->is_subclass_of(SystemDictionary::ClassLoader_klass());
1306 }
1307 static bool is_instance(oop obj);
1308
1309 static oop unnamedModule(oop loader);
1310
1311 // Debugging
1312 friend class JavaClasses;
1313 friend class ClassFileParser; // access to number_of_fake_fields
1314
1315 // Describe ClassLoader for exceptions, tracing ...
1316 // Prints "<name>" (instance of <classname>, child of "<name>" <classname>).
1317 // If a classloader has no name, it prints <unnamed> instead. The output
1318 // for well known loaders (system/platform) is abbreviated.
1319 static const char* describe_external(const oop loader);
1320 };
1321
1322
1323 // Interface to java.lang.System objects
1324
1325 class java_lang_System : AllStatic {
1326 private:
1327 static int static_in_offset;
1328 static int static_out_offset;
1329 static int static_err_offset;
1330 static int static_security_offset;
1331
1332 public:
1333 static int in_offset_in_bytes();
1334 static int out_offset_in_bytes();
1335 static int err_offset_in_bytes();
1336
1337 static bool has_security_manager();
1338
1339 static void compute_offsets();
1340 static void serialize(SerializeClosure* f) NOT_CDS_RETURN;
1341
1342 // Debugging
1343 friend class JavaClasses;
1344 };
1345
1346
1347 // Interface to java.lang.StackTraceElement objects
1348
1349 class java_lang_StackTraceElement: AllStatic {
1350 private:
1351 static int declaringClassObject_offset;
1352 static int classLoaderName_offset;
1353 static int moduleName_offset;
1354 static int moduleVersion_offset;
1355 static int declaringClass_offset;
1356 static int methodName_offset;
1357 static int fileName_offset;
1358 static int lineNumber_offset;
1359
1360 // Setters
1361 static void set_classLoaderName(oop element, oop value);
1362 static void set_moduleName(oop element, oop value);
1363 static void set_moduleVersion(oop element, oop value);
1364 static void set_declaringClass(oop element, oop value);
1365 static void set_methodName(oop element, oop value);
1366 static void set_fileName(oop element, oop value);
1367 static void set_lineNumber(oop element, int value);
1368 static void set_declaringClassObject(oop element, oop value);
1369
1370 public:
1371 // Create an instance of StackTraceElement
1372 static oop create(const methodHandle& method, int bci, TRAPS);
1373
1374 static void fill_in(Handle element, InstanceKlass* holder, const methodHandle& method,
1375 int version, int bci, Symbol* name, TRAPS);
1376
1377 static void compute_offsets();
1378 static void serialize(SerializeClosure* f) NOT_CDS_RETURN;
1379
1380 // Debugging
1381 friend class JavaClasses;
1382 };
1383
1384
1385 class Backtrace: AllStatic {
1386 public:
1387 // Helper backtrace functions to store bci|version together.
1388 static int merge_bci_and_version(int bci, int version);
1389 static int merge_mid_and_cpref(int mid, int cpref);
1390 static int bci_at(unsigned int merged);
1391 static int version_at(unsigned int merged);
1392 static int mid_at(unsigned int merged);
1393 static int cpref_at(unsigned int merged);
1394 static int get_line_number(const methodHandle& method, int bci);
1395 static Symbol* get_source_file_name(InstanceKlass* holder, int version);
1396
1397 // Debugging
1398 friend class JavaClasses;
1399 };
1400
1401 // Interface to java.lang.StackFrameInfo objects
1402
1403 #define STACKFRAMEINFO_INJECTED_FIELDS(macro) \
1404 macro(java_lang_StackFrameInfo, version, short_signature, false)
1405
1406 class java_lang_StackFrameInfo: AllStatic {
1407 private:
1408 static int _memberName_offset;
1409 static int _bci_offset;
1410 static int _version_offset;
1411
1412 static Method* get_method(Handle stackFrame, InstanceKlass* holder, TRAPS);
1413
1414 public:
1415 // Setters
1416 static void set_method_and_bci(Handle stackFrame, const methodHandle& method, int bci, TRAPS);
1417 static void set_bci(oop info, int value);
1418
1419 static void set_version(oop info, short value);
1420
1421 static void compute_offsets();
1422 static void serialize(SerializeClosure* f) NOT_CDS_RETURN;
1423
1424 static void to_stack_trace_element(Handle stackFrame, Handle stack_trace_element, TRAPS);
1425
1426 // Debugging
1427 friend class JavaClasses;
1428 };
1429
1430 class java_lang_LiveStackFrameInfo: AllStatic {
1431 private:
1432 static int _monitors_offset;
1433 static int _locals_offset;
1434 static int _operands_offset;
1435 static int _mode_offset;
1436
1437 public:
1438 static void set_monitors(oop info, oop value);
1439 static void set_locals(oop info, oop value);
1440 static void set_operands(oop info, oop value);
1441 static void set_mode(oop info, int value);
1442
1443 static void compute_offsets();
1444 static void serialize(SerializeClosure* f) NOT_CDS_RETURN;
1445
1446 // Debugging
1447 friend class JavaClasses;
1448 };
1449
1450 // Interface to java.lang.AssertionStatusDirectives objects
1451
1452 class java_lang_AssertionStatusDirectives: AllStatic {
1453 private:
1454 static int classes_offset;
1455 static int classEnabled_offset;
1456 static int packages_offset;
1457 static int packageEnabled_offset;
1458 static int deflt_offset;
1459
1460 public:
1461 // Setters
1462 static void set_classes(oop obj, oop val);
1463 static void set_classEnabled(oop obj, oop val);
1464 static void set_packages(oop obj, oop val);
1465 static void set_packageEnabled(oop obj, oop val);
1466 static void set_deflt(oop obj, bool val);
1467
1468 static void compute_offsets();
1469 static void serialize(SerializeClosure* f) NOT_CDS_RETURN;
1470
1471 // Debugging
1472 friend class JavaClasses;
1473 };
1474
1475
1476 class java_nio_Buffer: AllStatic {
1477 private:
1478 static int _limit_offset;
1479
1480 public:
1481 static int limit_offset();
1482 static void compute_offsets();
1483 static void serialize(SerializeClosure* f) NOT_CDS_RETURN;
1484 };
1485
1486 class java_util_concurrent_locks_AbstractOwnableSynchronizer : AllStatic {
1487 private:
1488 static int _owner_offset;
1489 public:
1490 static void compute_offsets();
1491 static oop get_owner_threadObj(oop obj);
1492 static void serialize(SerializeClosure* f) NOT_CDS_RETURN;
1493 };
1494
1495 #ifdef AARCH32
1496 class com_sun_crypto_provider_AESCrypt: AllStatic {
1497 public:
1498 static int _K_offset;
1499 enum {
1500 hc_ROUND_12_offset = 0,
1501 hc_ROUND_14_offset = 1,
1502 hc_sessionK_offset = 2,
1503 hc_K_offset = 3,
1504 hc_lastKey_offset = 4,
1505 hc_limit = 5
1506 };
1507
1508 static int K_offset();
1509 static void compute_offsets();
1510 };
1511
1512 class com_sun_crypto_provider_FeedbackCipher: AllStatic {
1513 public:
1514 static int _embeddedCipher_offset;
1515 enum {
1516 hc_blockSize_offset = 0,
1517 hc_embeddedCipher_offset = 1,
1518 hc_iv_offset
1519 };
1520
1521 static int embeddedCipher_offset();
1522 static void compute_offsets();
1523 };
1524
1525 class com_sun_crypto_provider_CipherBlockChaining:
1526 public com_sun_crypto_provider_FeedbackCipher {
1527 public:
1528 static int _r_offset;
1529 enum {
1530 hc_r_offset = hc_iv_offset+1,
1531 hc_k_offset
1532 };
1533
1534 static int r_offset();
1535 static void compute_offsets();
1536 };
1537
1538 class java_security_MessageDigestSpi {
1539 public:
1540 enum {
1541 hc_tempArray = 0
1542 };
1543 };
1544
1545 class sun_security_provider_DigestBase: java_security_MessageDigestSpi {
1546 public:
1547 enum {
1548 hc_digestLength = hc_tempArray + 1,
1549 hc_bytesProcessed_low,
1550 hc_bytesProcessed_high,
1551 hc_blockSize,
1552 hc_bufOfs,
1553 hc_oneByte,
1554 hc_algorithm,
1555 hc_buffer
1556 };
1557 };
1558
1559 class sun_security_provider_SHA:
1560 public sun_security_provider_DigestBase {
1561 public:
1562 static int _state_offset;
1563 enum {
1564 hc_W = hc_buffer + 1,
1565 hc_state,
1566 hc_init_hashes
1567 };
1568
1569 static int state_offset();
1570 static void compute_offsets();
1571 };
1572
1573
1574 class sun_security_provider_SHA2:
1575 public sun_security_provider_DigestBase {
1576 public:
1577 static int _state_offset;
1578 enum {
1579 hc_W = hc_buffer + 1,
1580 hc_state,
1581 hc_init_hashes
1582 };
1583
1584 static int state_offset();
1585 static void compute_offsets();
1586 };
1587
1588 class sun_security_provider_SHA5:
1589 public sun_security_provider_DigestBase {
1590 public:
1591 static int _state_offset;
1592 enum {
1593 hc_W = hc_buffer + 1,
1594 hc_state,
1595 hc_init_hashes
1596 };
1597
1598 static int state_offset();
1599 static void compute_offsets();
1600 };
1601 #endif
1602
1603 // Use to declare fields that need to be injected into Java classes
1604 // for the JVM to use. The name_index and signature_index are
1605 // declared in vmSymbols. The may_be_java flag is used to declare
1606 // fields that might already exist in Java but should be injected if
1607 // they don't. Otherwise the field is unconditionally injected and
1608 // the JVM uses the injected one. This is to ensure that name
1609 // collisions don't occur. In general may_be_java should be false
1610 // unless there's a good reason.
1611
1612 class InjectedField {
1613 public:
1614 const SystemDictionary::WKID klass_id;
1615 const vmSymbols::SID name_index;
1616 const vmSymbols::SID signature_index;
1617 const bool may_be_java;
1618
1619
1620 Klass* klass() const { return SystemDictionary::well_known_klass(klass_id); }
1621 Symbol* name() const { return lookup_symbol(name_index); }
1622 Symbol* signature() const { return lookup_symbol(signature_index); }
1623
1624 int compute_offset();
1625
1626 // Find the Symbol for this index
1627 static Symbol* lookup_symbol(int symbol_index) {
1628 return vmSymbols::symbol_at((vmSymbols::SID)symbol_index);
1629 }
1630 };
1631
1632 #define DECLARE_INJECTED_FIELD_ENUM(klass, name, signature, may_be_java) \
1633 klass##_##name##_enum,
1634
1635 #define ALL_INJECTED_FIELDS(macro) \
1636 CLASS_INJECTED_FIELDS(macro) \
1637 CLASSLOADER_INJECTED_FIELDS(macro) \
1638 RESOLVEDMETHOD_INJECTED_FIELDS(macro) \
1639 MEMBERNAME_INJECTED_FIELDS(macro) \
1640 CALLSITECONTEXT_INJECTED_FIELDS(macro) \
1641 STACKFRAMEINFO_INJECTED_FIELDS(macro) \
1642 MODULE_INJECTED_FIELDS(macro)
1643
1644 // Interface to hard-coded offset checking
1645
1646 class JavaClasses : AllStatic {
1647 private:
1648
1649 static InjectedField _injected_fields[];
1650
1651 static bool check_offset(const char *klass_name, int offset, const char *field_name, const char* field_sig) PRODUCT_RETURN0;
1652 public:
1653 enum InjectedFieldID {
1654 ALL_INJECTED_FIELDS(DECLARE_INJECTED_FIELD_ENUM)
1655 MAX_enum
1656 };
1657
1658 static int compute_injected_offset(InjectedFieldID id);
1659
1660 static void compute_hard_coded_offsets();
1661 static void compute_offsets();
1662 static void check_offsets() PRODUCT_RETURN;
1663
1664 static InjectedField* get_injected(Symbol* class_name, int* field_count);
1665 };
1666
1667 #undef DECLARE_INJECTED_FIELD_ENUM
1668
1669 #endif // SHARE_VM_CLASSFILE_JAVACLASSES_HPP