Mercurial > hg > graal-compiler
annotate src/share/vm/classfile/javaClasses.hpp @ 1972:f95d63e2154a
6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg
author | stefank |
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date | Tue, 23 Nov 2010 13:22:55 -0800 |
parents | d257356e35f0 |
children | 017cd8bce8a8 |
rev | line source |
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0 | 1 /* |
1972 | 2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_CLASSFILE_JAVACLASSES_HPP |
26 #define SHARE_VM_CLASSFILE_JAVACLASSES_HPP | |
27 | |
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" | |
33 | |
0 | 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. | |
49 | |
50 | |
51 // Interface to java.lang.String objects | |
52 | |
53 class java_lang_String : AllStatic { | |
54 private: | |
55 enum { | |
56 hc_value_offset = 0, | |
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57 hc_offset_offset = 1 |
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58 //hc_count_offset = 2 -- not a word-scaled offset |
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59 //hc_hash_offset = 3 -- not a word-scaled offset |
0 | 60 }; |
61 | |
62 static int value_offset; | |
63 static int offset_offset; | |
64 static int count_offset; | |
65 static int hash_offset; | |
66 | |
67 static Handle basic_create(int length, bool tenured, TRAPS); | |
68 static Handle basic_create_from_unicode(jchar* unicode, int length, bool tenured, TRAPS); | |
69 | |
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); } | |
73 | |
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(symbolHandle 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); | |
84 | |
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; } | |
89 | |
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); | |
104 | |
105 // String converters | |
106 static char* as_utf8_string(oop java_string); | |
107 static char* as_utf8_string(oop java_string, int start, int len); | |
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108 static char* as_platform_dependent_str(Handle java_string, TRAPS); |
0 | 109 static jchar* as_unicode_string(oop java_string, int& length); |
110 | |
111 static bool equals(oop java_string, jchar* chars, int len); | |
112 | |
113 // Conversion between '.' and '/' formats | |
114 static Handle externalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '/', '.', THREAD); } | |
115 static Handle internalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '.', '/', THREAD); } | |
116 | |
117 // Conversion | |
118 static symbolHandle as_symbol(Handle java_string, TRAPS); | |
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119 static symbolOop as_symbol_or_null(oop java_string); |
0 | 120 |
121 // Testers | |
122 static bool is_instance(oop obj) { | |
1142 | 123 return obj != NULL && obj->klass() == SystemDictionary::String_klass(); |
0 | 124 } |
125 | |
126 // Debugging | |
127 static void print(Handle java_string, outputStream* st); | |
128 friend class JavaClasses; | |
129 }; | |
130 | |
131 | |
132 // Interface to java.lang.Class objects | |
133 | |
134 class java_lang_Class : AllStatic { | |
135 friend class VMStructs; | |
136 private: | |
137 // The fake offsets are added by the class loader when java.lang.Class is loaded | |
138 | |
139 enum { | |
140 hc_klass_offset = 0, | |
141 hc_array_klass_offset = 1, | |
142 hc_resolved_constructor_offset = 2, | |
143 hc_number_of_fake_oop_fields = 3 | |
144 }; | |
145 | |
146 static int klass_offset; | |
147 static int resolved_constructor_offset; | |
148 static int array_klass_offset; | |
149 static int number_of_fake_oop_fields; | |
150 | |
151 static void compute_offsets(); | |
152 static bool offsets_computed; | |
153 static int classRedefinedCount_offset; | |
514 | 154 static int parallelCapable_offset; |
0 | 155 |
156 public: | |
157 // Instance creation | |
158 static oop create_mirror(KlassHandle k, TRAPS); | |
159 static oop create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS); | |
160 // Conversion | |
161 static klassOop as_klassOop(oop java_class); | |
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162 static BasicType as_BasicType(oop java_class, klassOop* reference_klass = NULL); |
710 | 163 static BasicType as_BasicType(oop java_class, KlassHandle* reference_klass) { |
164 klassOop refk_oop = NULL; | |
165 BasicType result = as_BasicType(java_class, &refk_oop); | |
166 (*reference_klass) = KlassHandle(refk_oop); | |
167 return result; | |
168 } | |
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169 static symbolOop as_signature(oop java_class, bool intern_if_not_found, TRAPS); |
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170 static void print_signature(oop java_class, outputStream *st); |
0 | 171 // Testing |
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172 static bool is_instance(oop obj) { |
1142 | 173 return obj != NULL && obj->klass() == SystemDictionary::Class_klass(); |
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174 } |
0 | 175 static bool is_primitive(oop java_class); |
176 static BasicType primitive_type(oop java_class); | |
177 static oop primitive_mirror(BasicType t); | |
178 // JVM_NewInstance support | |
179 static methodOop resolved_constructor(oop java_class); | |
180 static void set_resolved_constructor(oop java_class, methodOop constructor); | |
181 // JVM_NewArray support | |
182 static klassOop array_klass(oop java_class); | |
183 static void set_array_klass(oop java_class, klassOop klass); | |
184 // compiler support for class operations | |
185 static int klass_offset_in_bytes() { return klass_offset; } | |
186 static int resolved_constructor_offset_in_bytes() { return resolved_constructor_offset; } | |
187 static int array_klass_offset_in_bytes() { return array_klass_offset; } | |
188 // Support for classRedefinedCount field | |
189 static int classRedefinedCount(oop the_class_mirror); | |
190 static void set_classRedefinedCount(oop the_class_mirror, int value); | |
514 | 191 // Support for parallelCapable field |
192 static bool parallelCapable(oop the_class_mirror); | |
0 | 193 // Debugging |
194 friend class JavaClasses; | |
195 friend class instanceKlass; // verification code accesses offsets | |
196 friend class ClassFileParser; // access to number_of_fake_fields | |
197 }; | |
198 | |
199 // Interface to java.lang.Thread objects | |
200 | |
201 class java_lang_Thread : AllStatic { | |
202 private: | |
203 // Note that for this class the layout changed between JDK1.2 and JDK1.3, | |
204 // so we compute the offsets at startup rather than hard-wiring them. | |
205 static int _name_offset; | |
206 static int _group_offset; | |
207 static int _contextClassLoader_offset; | |
208 static int _inheritedAccessControlContext_offset; | |
209 static int _priority_offset; | |
210 static int _eetop_offset; | |
211 static int _daemon_offset; | |
212 static int _stillborn_offset; | |
213 static int _stackSize_offset; | |
214 static int _tid_offset; | |
215 static int _thread_status_offset; | |
216 static int _park_blocker_offset; | |
217 static int _park_event_offset ; | |
218 | |
219 static void compute_offsets(); | |
220 | |
221 public: | |
222 // Instance creation | |
223 static oop create(); | |
224 // Returns the JavaThread associated with the thread obj | |
225 static JavaThread* thread(oop java_thread); | |
226 // Set JavaThread for instance | |
227 static void set_thread(oop java_thread, JavaThread* thread); | |
228 // Name | |
229 static typeArrayOop name(oop java_thread); | |
230 static void set_name(oop java_thread, typeArrayOop name); | |
231 // Priority | |
232 static ThreadPriority priority(oop java_thread); | |
233 static void set_priority(oop java_thread, ThreadPriority priority); | |
234 // Thread group | |
235 static oop threadGroup(oop java_thread); | |
236 // Stillborn | |
237 static bool is_stillborn(oop java_thread); | |
238 static void set_stillborn(oop java_thread); | |
239 // Alive (NOTE: this is not really a field, but provides the correct | |
240 // definition without doing a Java call) | |
241 static bool is_alive(oop java_thread); | |
242 // Daemon | |
243 static bool is_daemon(oop java_thread); | |
244 static void set_daemon(oop java_thread); | |
245 // Context ClassLoader | |
246 static oop context_class_loader(oop java_thread); | |
247 // Control context | |
248 static oop inherited_access_control_context(oop java_thread); | |
249 // Stack size hint | |
250 static jlong stackSize(oop java_thread); | |
251 // Thread ID | |
252 static jlong thread_id(oop java_thread); | |
253 | |
254 // Blocker object responsible for thread parking | |
255 static oop park_blocker(oop java_thread); | |
256 | |
257 // Pointer to type-stable park handler, encoded as jlong. | |
258 // Should be set when apparently null | |
259 // For details, see unsafe.cpp Unsafe_Unpark | |
260 static jlong park_event(oop java_thread); | |
261 static bool set_park_event(oop java_thread, jlong ptr); | |
262 | |
263 // Java Thread Status for JVMTI and M&M use. | |
264 // This thread status info is saved in threadStatus field of | |
265 // java.lang.Thread java class. | |
266 enum ThreadStatus { | |
267 NEW = 0, | |
268 RUNNABLE = JVMTI_THREAD_STATE_ALIVE + // runnable / running | |
269 JVMTI_THREAD_STATE_RUNNABLE, | |
270 SLEEPING = JVMTI_THREAD_STATE_ALIVE + // Thread.sleep() | |
271 JVMTI_THREAD_STATE_WAITING + | |
272 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + | |
273 JVMTI_THREAD_STATE_SLEEPING, | |
274 IN_OBJECT_WAIT = JVMTI_THREAD_STATE_ALIVE + // Object.wait() | |
275 JVMTI_THREAD_STATE_WAITING + | |
276 JVMTI_THREAD_STATE_WAITING_INDEFINITELY + | |
277 JVMTI_THREAD_STATE_IN_OBJECT_WAIT, | |
278 IN_OBJECT_WAIT_TIMED = JVMTI_THREAD_STATE_ALIVE + // Object.wait(long) | |
279 JVMTI_THREAD_STATE_WAITING + | |
280 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + | |
281 JVMTI_THREAD_STATE_IN_OBJECT_WAIT, | |
282 PARKED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park() | |
283 JVMTI_THREAD_STATE_WAITING + | |
284 JVMTI_THREAD_STATE_WAITING_INDEFINITELY + | |
285 JVMTI_THREAD_STATE_PARKED, | |
286 PARKED_TIMED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park(long) | |
287 JVMTI_THREAD_STATE_WAITING + | |
288 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + | |
289 JVMTI_THREAD_STATE_PARKED, | |
290 BLOCKED_ON_MONITOR_ENTER = JVMTI_THREAD_STATE_ALIVE + // (re-)entering a synchronization block | |
291 JVMTI_THREAD_STATE_BLOCKED_ON_MONITOR_ENTER, | |
292 TERMINATED = JVMTI_THREAD_STATE_TERMINATED | |
293 }; | |
294 // Write thread status info to threadStatus field of java.lang.Thread. | |
295 static void set_thread_status(oop java_thread_oop, ThreadStatus status); | |
296 // Read thread status info from threadStatus field of java.lang.Thread. | |
297 static ThreadStatus get_thread_status(oop java_thread_oop); | |
298 | |
299 static const char* thread_status_name(oop java_thread_oop); | |
300 | |
301 // Debugging | |
302 friend class JavaClasses; | |
303 }; | |
304 | |
305 // Interface to java.lang.ThreadGroup objects | |
306 | |
307 class java_lang_ThreadGroup : AllStatic { | |
308 private: | |
309 static int _parent_offset; | |
310 static int _name_offset; | |
311 static int _threads_offset; | |
312 static int _groups_offset; | |
313 static int _maxPriority_offset; | |
314 static int _destroyed_offset; | |
315 static int _daemon_offset; | |
316 static int _vmAllowSuspension_offset; | |
317 static int _nthreads_offset; | |
318 static int _ngroups_offset; | |
319 | |
320 static void compute_offsets(); | |
321 | |
322 public: | |
323 // parent ThreadGroup | |
324 static oop parent(oop java_thread_group); | |
325 // name | |
326 static typeArrayOop name(oop java_thread_group); | |
327 // ("name as oop" accessor is not necessary) | |
328 // Number of threads in group | |
329 static int nthreads(oop java_thread_group); | |
330 // threads | |
331 static objArrayOop threads(oop java_thread_group); | |
332 // Number of threads in group | |
333 static int ngroups(oop java_thread_group); | |
334 // groups | |
335 static objArrayOop groups(oop java_thread_group); | |
336 // maxPriority in group | |
337 static ThreadPriority maxPriority(oop java_thread_group); | |
338 // Destroyed | |
339 static bool is_destroyed(oop java_thread_group); | |
340 // Daemon | |
341 static bool is_daemon(oop java_thread_group); | |
342 // vmAllowSuspension | |
343 static bool is_vmAllowSuspension(oop java_thread_group); | |
344 // Debugging | |
345 friend class JavaClasses; | |
346 }; | |
347 | |
348 | |
349 | |
350 // Interface to java.lang.Throwable objects | |
351 | |
352 class java_lang_Throwable: AllStatic { | |
353 friend class BacktraceBuilder; | |
354 | |
355 private: | |
356 // Offsets | |
357 enum { | |
358 hc_backtrace_offset = 0, | |
359 hc_detailMessage_offset = 1, | |
360 hc_cause_offset = 2, // New since 1.4 | |
361 hc_stackTrace_offset = 3 // New since 1.4 | |
362 }; | |
363 // Trace constants | |
364 enum { | |
365 trace_methods_offset = 0, | |
366 trace_bcis_offset = 1, | |
367 trace_next_offset = 2, | |
368 trace_size = 3, | |
369 trace_chunk_size = 32 | |
370 }; | |
371 | |
372 static int backtrace_offset; | |
373 static int detailMessage_offset; | |
374 static int cause_offset; | |
375 static int stackTrace_offset; | |
376 | |
377 // Printing | |
378 static char* print_stack_element_to_buffer(methodOop method, int bci); | |
379 static void print_to_stream(Handle stream, const char* str); | |
380 // StackTrace (programmatic access, new since 1.4) | |
381 static void clear_stacktrace(oop throwable); | |
382 // No stack trace available | |
383 static const char* no_stack_trace_message(); | |
384 | |
385 public: | |
386 // Backtrace | |
387 static oop backtrace(oop throwable); | |
388 static void set_backtrace(oop throwable, oop value); | |
389 // Needed by JVMTI to filter out this internal field. | |
390 static int get_backtrace_offset() { return backtrace_offset;} | |
391 static int get_detailMessage_offset() { return detailMessage_offset;} | |
392 // Message | |
393 static oop message(oop throwable); | |
394 static oop message(Handle throwable); | |
395 static void set_message(oop throwable, oop value); | |
396 // Print stack trace stored in exception by call-back to Java | |
397 // Note: this is no longer used in Merlin, but we still suppport | |
398 // it for compatibility. | |
399 static void print_stack_trace(oop throwable, oop print_stream); | |
400 static void print_stack_element(Handle stream, methodOop method, int bci); | |
401 static void print_stack_element(outputStream *st, methodOop method, int bci); | |
402 static void print_stack_usage(Handle stream); | |
403 | |
404 // Allocate space for backtrace (created but stack trace not filled in) | |
405 static void allocate_backtrace(Handle throwable, TRAPS); | |
406 // Fill in current stack trace for throwable with preallocated backtrace (no GC) | |
407 static void fill_in_stack_trace_of_preallocated_backtrace(Handle throwable); | |
408 | |
409 // Fill in current stack trace, can cause GC | |
410 static void fill_in_stack_trace(Handle throwable, TRAPS); | |
411 static void fill_in_stack_trace(Handle throwable); | |
412 // Programmatic access to stack trace | |
413 static oop get_stack_trace_element(oop throwable, int index, TRAPS); | |
414 static int get_stack_trace_depth(oop throwable, TRAPS); | |
415 // Printing | |
416 static void print(oop throwable, outputStream* st); | |
417 static void print(Handle throwable, outputStream* st); | |
418 static void print_stack_trace(oop throwable, outputStream* st); | |
419 // Debugging | |
420 friend class JavaClasses; | |
421 }; | |
422 | |
423 | |
424 // Interface to java.lang.reflect.AccessibleObject objects | |
425 | |
426 class java_lang_reflect_AccessibleObject: AllStatic { | |
427 private: | |
428 // Note that to reduce dependencies on the JDK we compute these | |
429 // offsets at run-time. | |
430 static int override_offset; | |
431 | |
432 static void compute_offsets(); | |
433 | |
434 public: | |
435 // Accessors | |
436 static jboolean override(oop reflect); | |
437 static void set_override(oop reflect, jboolean value); | |
438 | |
439 // Debugging | |
440 friend class JavaClasses; | |
441 }; | |
442 | |
443 | |
444 // Interface to java.lang.reflect.Method objects | |
445 | |
446 class java_lang_reflect_Method : public java_lang_reflect_AccessibleObject { | |
447 private: | |
448 // Note that to reduce dependencies on the JDK we compute these | |
449 // offsets at run-time. | |
450 static int clazz_offset; | |
451 static int name_offset; | |
452 static int returnType_offset; | |
453 static int parameterTypes_offset; | |
454 static int exceptionTypes_offset; | |
455 static int slot_offset; | |
456 static int modifiers_offset; | |
457 static int signature_offset; | |
458 static int annotations_offset; | |
459 static int parameter_annotations_offset; | |
460 static int annotation_default_offset; | |
461 | |
462 static void compute_offsets(); | |
463 | |
464 public: | |
465 // Allocation | |
466 static Handle create(TRAPS); | |
467 | |
468 // Accessors | |
469 static oop clazz(oop reflect); | |
470 static void set_clazz(oop reflect, oop value); | |
471 | |
472 static oop name(oop method); | |
473 static void set_name(oop method, oop value); | |
474 | |
475 static oop return_type(oop method); | |
476 static void set_return_type(oop method, oop value); | |
477 | |
478 static oop parameter_types(oop method); | |
479 static void set_parameter_types(oop method, oop value); | |
480 | |
481 static oop exception_types(oop method); | |
482 static void set_exception_types(oop method, oop value); | |
483 | |
484 static int slot(oop reflect); | |
485 static void set_slot(oop reflect, int value); | |
486 | |
487 static int modifiers(oop method); | |
488 static void set_modifiers(oop method, int value); | |
489 | |
490 static bool has_signature_field(); | |
491 static oop signature(oop method); | |
492 static void set_signature(oop method, oop value); | |
493 | |
494 static bool has_annotations_field(); | |
495 static oop annotations(oop method); | |
496 static void set_annotations(oop method, oop value); | |
497 | |
498 static bool has_parameter_annotations_field(); | |
499 static oop parameter_annotations(oop method); | |
500 static void set_parameter_annotations(oop method, oop value); | |
501 | |
502 static bool has_annotation_default_field(); | |
503 static oop annotation_default(oop method); | |
504 static void set_annotation_default(oop method, oop value); | |
505 | |
506 // Debugging | |
507 friend class JavaClasses; | |
508 }; | |
509 | |
510 | |
511 // Interface to java.lang.reflect.Constructor objects | |
512 | |
513 class java_lang_reflect_Constructor : public java_lang_reflect_AccessibleObject { | |
514 private: | |
515 // Note that to reduce dependencies on the JDK we compute these | |
516 // offsets at run-time. | |
517 static int clazz_offset; | |
518 static int parameterTypes_offset; | |
519 static int exceptionTypes_offset; | |
520 static int slot_offset; | |
521 static int modifiers_offset; | |
522 static int signature_offset; | |
523 static int annotations_offset; | |
524 static int parameter_annotations_offset; | |
525 | |
526 static void compute_offsets(); | |
527 | |
528 public: | |
529 // Allocation | |
530 static Handle create(TRAPS); | |
531 | |
532 // Accessors | |
533 static oop clazz(oop reflect); | |
534 static void set_clazz(oop reflect, oop value); | |
535 | |
536 static oop parameter_types(oop constructor); | |
537 static void set_parameter_types(oop constructor, oop value); | |
538 | |
539 static oop exception_types(oop constructor); | |
540 static void set_exception_types(oop constructor, oop value); | |
541 | |
542 static int slot(oop reflect); | |
543 static void set_slot(oop reflect, int value); | |
544 | |
545 static int modifiers(oop constructor); | |
546 static void set_modifiers(oop constructor, int value); | |
547 | |
548 static bool has_signature_field(); | |
549 static oop signature(oop constructor); | |
550 static void set_signature(oop constructor, oop value); | |
551 | |
552 static bool has_annotations_field(); | |
553 static oop annotations(oop constructor); | |
554 static void set_annotations(oop constructor, oop value); | |
555 | |
556 static bool has_parameter_annotations_field(); | |
557 static oop parameter_annotations(oop method); | |
558 static void set_parameter_annotations(oop method, oop value); | |
559 | |
560 // Debugging | |
561 friend class JavaClasses; | |
562 }; | |
563 | |
564 | |
565 // Interface to java.lang.reflect.Field objects | |
566 | |
567 class java_lang_reflect_Field : public java_lang_reflect_AccessibleObject { | |
568 private: | |
569 // Note that to reduce dependencies on the JDK we compute these | |
570 // offsets at run-time. | |
571 static int clazz_offset; | |
572 static int name_offset; | |
573 static int type_offset; | |
574 static int slot_offset; | |
575 static int modifiers_offset; | |
576 static int signature_offset; | |
577 static int annotations_offset; | |
578 | |
579 static void compute_offsets(); | |
580 | |
581 public: | |
582 // Allocation | |
583 static Handle create(TRAPS); | |
584 | |
585 // Accessors | |
586 static oop clazz(oop reflect); | |
587 static void set_clazz(oop reflect, oop value); | |
588 | |
589 static oop name(oop field); | |
590 static void set_name(oop field, oop value); | |
591 | |
592 static oop type(oop field); | |
593 static void set_type(oop field, oop value); | |
594 | |
595 static int slot(oop reflect); | |
596 static void set_slot(oop reflect, int value); | |
597 | |
598 static int modifiers(oop field); | |
599 static void set_modifiers(oop field, int value); | |
600 | |
601 static bool has_signature_field(); | |
602 static oop signature(oop constructor); | |
603 static void set_signature(oop constructor, oop value); | |
604 | |
605 static bool has_annotations_field(); | |
606 static oop annotations(oop constructor); | |
607 static void set_annotations(oop constructor, oop value); | |
608 | |
609 static bool has_parameter_annotations_field(); | |
610 static oop parameter_annotations(oop method); | |
611 static void set_parameter_annotations(oop method, oop value); | |
612 | |
613 static bool has_annotation_default_field(); | |
614 static oop annotation_default(oop method); | |
615 static void set_annotation_default(oop method, oop value); | |
616 | |
617 // Debugging | |
618 friend class JavaClasses; | |
619 }; | |
620 | |
621 // Interface to sun.reflect.ConstantPool objects | |
622 class sun_reflect_ConstantPool { | |
623 private: | |
624 // Note that to reduce dependencies on the JDK we compute these | |
625 // offsets at run-time. | |
626 static int _cp_oop_offset; | |
627 | |
628 static void compute_offsets(); | |
629 | |
630 public: | |
631 // Allocation | |
632 static Handle create(TRAPS); | |
633 | |
634 // Accessors | |
635 static oop cp_oop(oop reflect); | |
636 static void set_cp_oop(oop reflect, oop value); | |
637 static int cp_oop_offset() { | |
638 return _cp_oop_offset; | |
639 } | |
640 | |
641 // Debugging | |
642 friend class JavaClasses; | |
643 }; | |
644 | |
645 // Interface to sun.reflect.UnsafeStaticFieldAccessorImpl objects | |
646 class sun_reflect_UnsafeStaticFieldAccessorImpl { | |
647 private: | |
648 static int _base_offset; | |
649 static void compute_offsets(); | |
650 | |
651 public: | |
652 static int base_offset() { | |
653 return _base_offset; | |
654 } | |
655 | |
656 // Debugging | |
657 friend class JavaClasses; | |
658 }; | |
659 | |
660 // Interface to java.lang primitive type boxing objects: | |
661 // - java.lang.Boolean | |
662 // - java.lang.Character | |
663 // - java.lang.Float | |
664 // - java.lang.Double | |
665 // - java.lang.Byte | |
666 // - java.lang.Short | |
667 // - java.lang.Integer | |
668 // - java.lang.Long | |
669 | |
670 // This could be separated out into 8 individual classes. | |
671 | |
672 class java_lang_boxing_object: AllStatic { | |
673 private: | |
674 enum { | |
675 hc_value_offset = 0 | |
676 }; | |
677 static int value_offset; | |
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678 static int long_value_offset; |
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680 static oop initialize_and_allocate(BasicType type, TRAPS); |
0 | 681 public: |
682 // Allocation. Returns a boxed value, or NULL for invalid type. | |
683 static oop create(BasicType type, jvalue* value, TRAPS); | |
684 // Accessors. Returns the basic type being boxed, or T_ILLEGAL for invalid oop. | |
685 static BasicType get_value(oop box, jvalue* value); | |
686 static BasicType set_value(oop box, jvalue* value); | |
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687 static BasicType basic_type(oop box); |
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688 static bool is_instance(oop box) { return basic_type(box) != T_ILLEGAL; } |
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689 static bool is_instance(oop box, BasicType type) { return basic_type(box) == type; } |
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690 static void print(oop box, outputStream* st) { jvalue value; print(get_value(box, &value), &value, st); } |
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691 static void print(BasicType type, jvalue* value, outputStream* st); |
0 | 692 |
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693 static int value_offset_in_bytes(BasicType type) { |
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694 return ( type == T_LONG || type == T_DOUBLE ) ? long_value_offset : |
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695 value_offset; |
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696 } |
0 | 697 |
698 // Debugging | |
699 friend class JavaClasses; | |
700 }; | |
701 | |
702 | |
703 | |
704 // Interface to java.lang.ref.Reference objects | |
705 | |
706 class java_lang_ref_Reference: AllStatic { | |
707 public: | |
708 enum { | |
709 hc_referent_offset = 0, | |
710 hc_queue_offset = 1, | |
711 hc_next_offset = 2, | |
712 hc_discovered_offset = 3 // Is not last, see SoftRefs. | |
713 }; | |
714 enum { | |
715 hc_static_lock_offset = 0, | |
716 hc_static_pending_offset = 1 | |
717 }; | |
718 | |
719 static int referent_offset; | |
720 static int queue_offset; | |
721 static int next_offset; | |
722 static int discovered_offset; | |
723 static int static_lock_offset; | |
724 static int static_pending_offset; | |
725 static int number_of_fake_oop_fields; | |
726 | |
727 // Accessors | |
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728 static oop referent(oop ref) { |
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729 return ref->obj_field(referent_offset); |
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730 } |
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731 static void set_referent(oop ref, oop value) { |
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732 ref->obj_field_put(referent_offset, value); |
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733 } |
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734 static void set_referent_raw(oop ref, oop value) { |
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735 ref->obj_field_raw_put(referent_offset, value); |
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736 } |
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737 static HeapWord* referent_addr(oop ref) { |
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738 return ref->obj_field_addr<HeapWord>(referent_offset); |
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739 } |
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740 static oop next(oop ref) { |
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741 return ref->obj_field(next_offset); |
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742 } |
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743 static void set_next(oop ref, oop value) { |
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744 ref->obj_field_put(next_offset, value); |
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745 } |
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746 static void set_next_raw(oop ref, oop value) { |
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747 ref->obj_field_raw_put(next_offset, value); |
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748 } |
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749 static HeapWord* next_addr(oop ref) { |
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750 return ref->obj_field_addr<HeapWord>(next_offset); |
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751 } |
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752 static oop discovered(oop ref) { |
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753 return ref->obj_field(discovered_offset); |
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754 } |
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755 static void set_discovered(oop ref, oop value) { |
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756 ref->obj_field_put(discovered_offset, value); |
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757 } |
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758 static void set_discovered_raw(oop ref, oop value) { |
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759 ref->obj_field_raw_put(discovered_offset, value); |
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760 } |
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761 static HeapWord* discovered_addr(oop ref) { |
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762 return ref->obj_field_addr<HeapWord>(discovered_offset); |
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763 } |
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764 // Accessors for statics |
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765 static oop pending_list_lock(); |
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766 static oop pending_list(); |
0 | 767 |
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768 static HeapWord* pending_list_addr(); |
0 | 769 }; |
770 | |
771 | |
772 // Interface to java.lang.ref.SoftReference objects | |
773 | |
774 class java_lang_ref_SoftReference: public java_lang_ref_Reference { | |
775 public: | |
776 enum { | |
777 // The timestamp is a long field and may need to be adjusted for alignment. | |
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778 hc_timestamp_offset = hc_discovered_offset + 1 |
0 | 779 }; |
780 enum { | |
781 hc_static_clock_offset = 0 | |
782 }; | |
783 | |
784 static int timestamp_offset; | |
785 static int static_clock_offset; | |
786 | |
787 // Accessors | |
788 static jlong timestamp(oop ref); | |
789 | |
790 // Accessors for statics | |
791 static jlong clock(); | |
792 static void set_clock(jlong value); | |
793 }; | |
794 | |
795 | |
710 | 796 // Interface to java.dyn.MethodHandle objects |
797 | |
798 class MethodHandleEntry; | |
799 | |
800 class java_dyn_MethodHandle: AllStatic { | |
801 friend class JavaClasses; | |
802 | |
803 private: | |
804 static int _vmentry_offset; // assembly code trampoline for MH | |
805 static int _vmtarget_offset; // class-specific target reference | |
806 static int _type_offset; // the MethodType of this MH | |
807 static int _vmslots_offset; // OPTIONAL hoisted type.form.vmslots | |
808 | |
809 static void compute_offsets(); | |
810 | |
811 public: | |
812 // Accessors | |
813 static oop type(oop mh); | |
814 static void set_type(oop mh, oop mtype); | |
815 | |
816 static oop vmtarget(oop mh); | |
817 static void set_vmtarget(oop mh, oop target); | |
818 | |
819 static MethodHandleEntry* vmentry(oop mh); | |
820 static void set_vmentry(oop mh, MethodHandleEntry* data); | |
821 | |
822 static int vmslots(oop mh); | |
823 static void init_vmslots(oop mh); | |
824 static int compute_vmslots(oop mh); | |
825 | |
826 // Testers | |
827 static bool is_subclass(klassOop klass) { | |
828 return Klass::cast(klass)->is_subclass_of(SystemDictionary::MethodHandle_klass()); | |
829 } | |
830 static bool is_instance(oop obj) { | |
831 return obj != NULL && is_subclass(obj->klass()); | |
832 } | |
833 | |
834 // Accessors for code generation: | |
835 static int type_offset_in_bytes() { return _type_offset; } | |
836 static int vmtarget_offset_in_bytes() { return _vmtarget_offset; } | |
837 static int vmentry_offset_in_bytes() { return _vmentry_offset; } | |
838 static int vmslots_offset_in_bytes() { return _vmslots_offset; } | |
839 }; | |
840 | |
841 class sun_dyn_DirectMethodHandle: public java_dyn_MethodHandle { | |
842 friend class JavaClasses; | |
843 | |
844 private: | |
845 // _vmtarget_offset; // method or class or interface | |
846 static int _vmindex_offset; // negative or vtable idx or itable idx | |
847 static void compute_offsets(); | |
848 | |
849 public: | |
850 // Accessors | |
851 static int vmindex(oop mh); | |
852 static void set_vmindex(oop mh, int index); | |
853 | |
854 // Testers | |
855 static bool is_subclass(klassOop klass) { | |
856 return Klass::cast(klass)->is_subclass_of(SystemDictionary::DirectMethodHandle_klass()); | |
857 } | |
858 static bool is_instance(oop obj) { | |
859 return obj != NULL && is_subclass(obj->klass()); | |
860 } | |
861 | |
862 // Accessors for code generation: | |
863 static int vmindex_offset_in_bytes() { return _vmindex_offset; } | |
864 }; | |
865 | |
866 class sun_dyn_BoundMethodHandle: public java_dyn_MethodHandle { | |
867 friend class JavaClasses; | |
868 | |
869 private: | |
870 static int _argument_offset; // argument value bound into this MH | |
871 static int _vmargslot_offset; // relevant argument slot (<= vmslots) | |
872 static void compute_offsets(); | |
873 | |
874 public: | |
875 static oop argument(oop mh); | |
876 static void set_argument(oop mh, oop ref); | |
877 | |
878 static jint vmargslot(oop mh); | |
879 static void set_vmargslot(oop mh, jint slot); | |
880 | |
881 // Testers | |
882 static bool is_subclass(klassOop klass) { | |
883 return Klass::cast(klass)->is_subclass_of(SystemDictionary::BoundMethodHandle_klass()); | |
884 } | |
885 static bool is_instance(oop obj) { | |
886 return obj != NULL && is_subclass(obj->klass()); | |
887 } | |
888 | |
889 static int argument_offset_in_bytes() { return _argument_offset; } | |
890 static int vmargslot_offset_in_bytes() { return _vmargslot_offset; } | |
891 }; | |
892 | |
893 class sun_dyn_AdapterMethodHandle: public sun_dyn_BoundMethodHandle { | |
894 friend class JavaClasses; | |
895 | |
896 private: | |
897 static int _conversion_offset; // type of conversion to apply | |
898 static void compute_offsets(); | |
899 | |
900 public: | |
901 static int conversion(oop mh); | |
902 static void set_conversion(oop mh, int conv); | |
903 | |
904 // Testers | |
905 static bool is_subclass(klassOop klass) { | |
906 return Klass::cast(klass)->is_subclass_of(SystemDictionary::AdapterMethodHandle_klass()); | |
907 } | |
908 static bool is_instance(oop obj) { | |
909 return obj != NULL && is_subclass(obj->klass()); | |
910 } | |
911 | |
912 // Relevant integer codes (keep these in synch. with MethodHandleNatives.Constants): | |
913 enum { | |
914 OP_RETYPE_ONLY = 0x0, // no argument changes; straight retype | |
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915 OP_RETYPE_RAW = 0x1, // straight retype, trusted (void->int, Object->T) |
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916 OP_CHECK_CAST = 0x2, // ref-to-ref conversion; requires a Class argument |
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917 OP_PRIM_TO_PRIM = 0x3, // converts from one primitive to another |
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918 OP_REF_TO_PRIM = 0x4, // unboxes a wrapper to produce a primitive |
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919 OP_PRIM_TO_REF = 0x5, // boxes a primitive into a wrapper (NYI) |
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920 OP_SWAP_ARGS = 0x6, // swap arguments (vminfo is 2nd arg) |
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921 OP_ROT_ARGS = 0x7, // rotate arguments (vminfo is displaced arg) |
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922 OP_DUP_ARGS = 0x8, // duplicates one or more arguments (at TOS) |
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923 OP_DROP_ARGS = 0x9, // remove one or more argument slots |
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924 OP_COLLECT_ARGS = 0xA, // combine one or more arguments into a varargs (NYI) |
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925 OP_SPREAD_ARGS = 0xB, // expand in place a varargs array (of known size) |
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926 OP_FLYBY = 0xC, // operate first on reified argument list (NYI) |
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927 OP_RICOCHET = 0xD, // run an adapter chain on the return value (NYI) |
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928 CONV_OP_LIMIT = 0xE, // limit of CONV_OP enumeration |
710 | 929 |
930 CONV_OP_MASK = 0xF00, // this nybble contains the conversion op field | |
931 CONV_VMINFO_MASK = 0x0FF, // LSB is reserved for JVM use | |
932 CONV_VMINFO_SHIFT = 0, // position of bits in CONV_VMINFO_MASK | |
933 CONV_OP_SHIFT = 8, // position of bits in CONV_OP_MASK | |
934 CONV_DEST_TYPE_SHIFT = 12, // byte 2 has the adapter BasicType (if needed) | |
935 CONV_SRC_TYPE_SHIFT = 16, // byte 2 has the source BasicType (if needed) | |
936 CONV_STACK_MOVE_SHIFT = 20, // high 12 bits give signed SP change | |
937 CONV_STACK_MOVE_MASK = (1 << (32 - CONV_STACK_MOVE_SHIFT)) - 1 | |
938 }; | |
939 | |
940 static int conversion_offset_in_bytes() { return _conversion_offset; } | |
941 }; | |
942 | |
943 | |
944 // Interface to sun.dyn.MemberName objects | |
945 // (These are a private interface for Java code to query the class hierarchy.) | |
946 | |
947 class sun_dyn_MemberName: AllStatic { | |
948 friend class JavaClasses; | |
949 | |
950 private: | |
951 // From java.dyn.MemberName: | |
952 // private Class<?> clazz; // class in which the method is defined | |
953 // private String name; // may be null if not yet materialized | |
954 // private Object type; // may be null if not yet materialized | |
955 // private int flags; // modifier bits; see reflect.Modifier | |
956 // private Object vmtarget; // VM-specific target value | |
957 // private int vmindex; // method index within class or interface | |
958 static int _clazz_offset; | |
959 static int _name_offset; | |
960 static int _type_offset; | |
961 static int _flags_offset; | |
962 static int _vmtarget_offset; | |
963 static int _vmindex_offset; | |
964 | |
965 static void compute_offsets(); | |
966 | |
967 public: | |
968 // Accessors | |
969 static oop clazz(oop mname); | |
970 static void set_clazz(oop mname, oop clazz); | |
971 | |
972 static oop type(oop mname); | |
973 static void set_type(oop mname, oop type); | |
974 | |
975 static oop name(oop mname); | |
976 static void set_name(oop mname, oop name); | |
977 | |
978 static int flags(oop mname); | |
979 static void set_flags(oop mname, int flags); | |
980 | |
981 static int modifiers(oop mname) { return (u2) flags(mname); } | |
982 static void set_modifiers(oop mname, int mods) | |
983 { set_flags(mname, (flags(mname) &~ (u2)-1) | (u2)mods); } | |
984 | |
985 static oop vmtarget(oop mname); | |
986 static void set_vmtarget(oop mname, oop target); | |
987 | |
988 static int vmindex(oop mname); | |
989 static void set_vmindex(oop mname, int index); | |
990 | |
991 // Testers | |
992 static bool is_subclass(klassOop klass) { | |
993 return Klass::cast(klass)->is_subclass_of(SystemDictionary::MemberName_klass()); | |
994 } | |
995 static bool is_instance(oop obj) { | |
996 return obj != NULL && is_subclass(obj->klass()); | |
997 } | |
998 | |
999 // Relevant integer codes (keep these in synch. with MethodHandleNatives.Constants): | |
1000 enum { | |
1001 MN_IS_METHOD = 0x00010000, // method (not constructor) | |
1002 MN_IS_CONSTRUCTOR = 0x00020000, // constructor | |
1003 MN_IS_FIELD = 0x00040000, // field | |
1004 MN_IS_TYPE = 0x00080000, // nested type | |
1005 MN_SEARCH_SUPERCLASSES = 0x00100000, // for MHN.getMembers | |
1006 MN_SEARCH_INTERFACES = 0x00200000, // for MHN.getMembers | |
1007 VM_INDEX_UNINITIALIZED = -99 | |
1008 }; | |
1009 | |
1010 // Accessors for code generation: | |
1011 static int clazz_offset_in_bytes() { return _clazz_offset; } | |
1012 static int type_offset_in_bytes() { return _type_offset; } | |
1013 static int name_offset_in_bytes() { return _name_offset; } | |
1014 static int flags_offset_in_bytes() { return _flags_offset; } | |
1015 static int vmtarget_offset_in_bytes() { return _vmtarget_offset; } | |
1016 static int vmindex_offset_in_bytes() { return _vmindex_offset; } | |
1017 }; | |
1018 | |
1019 | |
1020 // Interface to java.dyn.MethodType objects | |
1021 | |
1022 class java_dyn_MethodType: AllStatic { | |
1023 friend class JavaClasses; | |
1024 | |
1025 private: | |
1026 static int _rtype_offset; | |
1027 static int _ptypes_offset; | |
1028 static int _form_offset; | |
1029 | |
1030 static void compute_offsets(); | |
1031 | |
1032 public: | |
1033 // Accessors | |
1034 static oop rtype(oop mt); | |
1035 static objArrayOop ptypes(oop mt); | |
1036 static oop form(oop mt); | |
1037 | |
1038 static oop ptype(oop mt, int index); | |
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1039 static int ptype_count(oop mt); |
710 | 1040 |
1041 static symbolOop as_signature(oop mt, bool intern_if_not_found, TRAPS); | |
1042 static void print_signature(oop mt, outputStream* st); | |
1043 | |
1044 static bool is_instance(oop obj) { | |
1045 return obj != NULL && obj->klass() == SystemDictionary::MethodType_klass(); | |
1046 } | |
1047 | |
1048 // Accessors for code generation: | |
1049 static int rtype_offset_in_bytes() { return _rtype_offset; } | |
1050 static int ptypes_offset_in_bytes() { return _ptypes_offset; } | |
1051 static int form_offset_in_bytes() { return _form_offset; } | |
1052 }; | |
1053 | |
1054 class java_dyn_MethodTypeForm: AllStatic { | |
1055 friend class JavaClasses; | |
1056 | |
1057 private: | |
1058 static int _vmslots_offset; // number of argument slots needed | |
1059 static int _erasedType_offset; // erasedType = canonical MethodType | |
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1060 static int _genericInvoker_offset; // genericInvoker = adapter for invokeGeneric |
710 | 1061 |
1062 static void compute_offsets(); | |
1063 | |
1064 public: | |
1065 // Accessors | |
1066 static int vmslots(oop mtform); | |
1067 static oop erasedType(oop mtform); | |
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1068 static oop genericInvoker(oop mtform); |
710 | 1069 |
1070 // Accessors for code generation: | |
1071 static int vmslots_offset_in_bytes() { return _vmslots_offset; } | |
1072 static int erasedType_offset_in_bytes() { return _erasedType_offset; } | |
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1073 static int genericInvoker_offset_in_bytes() { return _genericInvoker_offset; } |
710 | 1074 }; |
1075 | |
1076 | |
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1077 // Interface to java.dyn.CallSite objects |
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1078 |
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1079 class java_dyn_CallSite: AllStatic { |
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1080 friend class JavaClasses; |
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1081 |
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1082 private: |
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1083 static int _target_offset; |
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1084 static int _caller_method_offset; |
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1085 static int _caller_bci_offset; |
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1086 |
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1087 static void compute_offsets(); |
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1088 |
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1089 public: |
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1090 // Accessors |
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1091 static oop target(oop site); |
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1092 static void set_target(oop site, oop target); |
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1093 |
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1094 static oop caller_method(oop site); |
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1095 static void set_caller_method(oop site, oop ref); |
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1096 |
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1097 static jint caller_bci(oop site); |
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1098 static void set_caller_bci(oop site, jint bci); |
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1099 |
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1100 // Testers |
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1101 static bool is_subclass(klassOop klass) { |
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1102 return Klass::cast(klass)->is_subclass_of(SystemDictionary::CallSite_klass()); |
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1103 } |
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1104 static bool is_instance(oop obj) { |
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1105 return obj != NULL && is_subclass(obj->klass()); |
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1106 } |
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1107 |
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1108 // Accessors for code generation: |
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1109 static int target_offset_in_bytes() { return _target_offset; } |
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1110 static int caller_method_offset_in_bytes() { return _caller_method_offset; } |
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1111 static int caller_bci_offset_in_bytes() { return _caller_bci_offset; } |
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1112 }; |
710 | 1113 |
1114 | |
0 | 1115 // Interface to java.security.AccessControlContext objects |
1116 | |
1117 class java_security_AccessControlContext: AllStatic { | |
1118 private: | |
1119 // Note that for this class the layout changed between JDK1.2 and JDK1.3, | |
1120 // so we compute the offsets at startup rather than hard-wiring them. | |
1121 static int _context_offset; | |
1122 static int _privilegedContext_offset; | |
1123 static int _isPrivileged_offset; | |
1124 | |
1125 static void compute_offsets(); | |
1126 public: | |
1127 static oop create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS); | |
1128 | |
1129 // Debugging/initialization | |
1130 friend class JavaClasses; | |
1131 }; | |
1132 | |
1133 | |
1134 // Interface to java.lang.ClassLoader objects | |
1135 | |
1136 class java_lang_ClassLoader : AllStatic { | |
1137 private: | |
1138 enum { | |
1139 hc_parent_offset = 0 | |
1140 }; | |
1141 | |
1142 static int parent_offset; | |
1143 | |
1144 public: | |
1145 static oop parent(oop loader); | |
1146 | |
1147 static bool is_trusted_loader(oop loader); | |
1148 | |
1149 // Fix for 4474172 | |
1150 static oop non_reflection_class_loader(oop loader); | |
1151 | |
1152 // Debugging | |
1153 friend class JavaClasses; | |
1154 }; | |
1155 | |
1156 | |
1157 // Interface to java.lang.System objects | |
1158 | |
1159 class java_lang_System : AllStatic { | |
1160 private: | |
1161 enum { | |
1162 hc_static_in_offset = 0, | |
1163 hc_static_out_offset = 1, | |
1164 hc_static_err_offset = 2 | |
1165 }; | |
1166 | |
1167 static int offset_of_static_fields; | |
1168 static int static_in_offset; | |
1169 static int static_out_offset; | |
1170 static int static_err_offset; | |
1171 | |
1172 static void compute_offsets(); | |
1173 | |
1174 public: | |
1175 static int in_offset_in_bytes(); | |
1176 static int out_offset_in_bytes(); | |
1177 static int err_offset_in_bytes(); | |
1178 | |
1179 // Debugging | |
1180 friend class JavaClasses; | |
1181 }; | |
1182 | |
1183 | |
1184 // Interface to java.lang.StackTraceElement objects | |
1185 | |
1186 class java_lang_StackTraceElement: AllStatic { | |
1187 private: | |
1188 enum { | |
1189 hc_declaringClass_offset = 0, | |
1190 hc_methodName_offset = 1, | |
1191 hc_fileName_offset = 2, | |
1192 hc_lineNumber_offset = 3 | |
1193 }; | |
1194 | |
1195 static int declaringClass_offset; | |
1196 static int methodName_offset; | |
1197 static int fileName_offset; | |
1198 static int lineNumber_offset; | |
1199 | |
1200 public: | |
1201 // Setters | |
1202 static void set_declaringClass(oop element, oop value); | |
1203 static void set_methodName(oop element, oop value); | |
1204 static void set_fileName(oop element, oop value); | |
1205 static void set_lineNumber(oop element, int value); | |
1206 | |
1207 // Create an instance of StackTraceElement | |
1208 static oop create(methodHandle m, int bci, TRAPS); | |
1209 | |
1210 // Debugging | |
1211 friend class JavaClasses; | |
1212 }; | |
1213 | |
1214 | |
1215 // Interface to java.lang.AssertionStatusDirectives objects | |
1216 | |
1217 class java_lang_AssertionStatusDirectives: AllStatic { | |
1218 private: | |
1219 enum { | |
1220 hc_classes_offset, | |
1221 hc_classEnabled_offset, | |
1222 hc_packages_offset, | |
1223 hc_packageEnabled_offset, | |
1224 hc_deflt_offset | |
1225 }; | |
1226 | |
1227 static int classes_offset; | |
1228 static int classEnabled_offset; | |
1229 static int packages_offset; | |
1230 static int packageEnabled_offset; | |
1231 static int deflt_offset; | |
1232 | |
1233 public: | |
1234 // Setters | |
1235 static void set_classes(oop obj, oop val); | |
1236 static void set_classEnabled(oop obj, oop val); | |
1237 static void set_packages(oop obj, oop val); | |
1238 static void set_packageEnabled(oop obj, oop val); | |
1239 static void set_deflt(oop obj, bool val); | |
1240 // Debugging | |
1241 friend class JavaClasses; | |
1242 }; | |
1243 | |
1244 | |
1245 class java_nio_Buffer: AllStatic { | |
1246 private: | |
1247 static int _limit_offset; | |
1248 | |
1249 public: | |
1250 static int limit_offset(); | |
1251 static void compute_offsets(); | |
1252 }; | |
1253 | |
1254 class sun_misc_AtomicLongCSImpl: AllStatic { | |
1255 private: | |
1256 static int _value_offset; | |
1257 | |
1258 public: | |
1259 static int value_offset(); | |
1260 static void compute_offsets(); | |
1261 }; | |
1262 | |
1263 class java_util_concurrent_locks_AbstractOwnableSynchronizer : AllStatic { | |
1264 private: | |
1265 static int _owner_offset; | |
1266 public: | |
1267 static void initialize(TRAPS); | |
1268 static oop get_owner_threadObj(oop obj); | |
1269 }; | |
1270 | |
1271 // Interface to hard-coded offset checking | |
1272 | |
1273 class JavaClasses : AllStatic { | |
1274 private: | |
1275 static bool check_offset(const char *klass_name, int offset, const char *field_name, const char* field_sig) PRODUCT_RETURN0; | |
1276 static bool check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) PRODUCT_RETURN0; | |
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1277 static bool check_constant(const char *klass_name, int constant, const char *field_name, const char* field_sig) PRODUCT_RETURN0; |
0 | 1278 public: |
1279 static void compute_hard_coded_offsets(); | |
1280 static void compute_offsets(); | |
1281 static void check_offsets() PRODUCT_RETURN; | |
1282 }; | |
1972 | 1283 |
1284 #endif // SHARE_VM_CLASSFILE_JAVACLASSES_HPP |