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