Mercurial > hg > truffle
annotate src/share/vm/classfile/javaClasses.hpp @ 3229:4a6bda6cfe28
Fix for usages that are phi in rematerialization
author | Gilles Duboscq <gilles.duboscq@oracle.com> |
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date | Thu, 21 Jul 2011 11:32:22 +0200 |
parents | 352622fd140a |
children | 01147d8aac1d |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2011, 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); | |
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81 static Handle create_from_symbol(Symbol* symbol, TRAPS); |
0 | 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); | |
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107 static char* as_utf8_string(oop java_string, char* buf, int buflen); |
0 | 108 static char* as_utf8_string(oop java_string, int start, int len); |
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109 static char* as_platform_dependent_str(Handle java_string, TRAPS); |
0 | 110 static jchar* as_unicode_string(oop java_string, int& length); |
111 | |
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112 // Compute the hash value for a java.lang.String object which would |
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113 // contain the characters passed in. This hash value is used for at |
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114 // least two purposes. |
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115 // |
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116 // (a) As the hash value used by the StringTable for bucket selection |
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117 // and comparison (stored in the HashtableEntry structures). This |
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118 // is used in the String.intern() method. |
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119 // |
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120 // (b) As the hash value used by the String object itself, in |
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121 // String.hashCode(). This value is normally calculate in Java code |
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122 // in the String.hashCode method(), but is precomputed for String |
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123 // objects in the shared archive file. |
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124 // |
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125 // For this reason, THIS ALGORITHM MUST MATCH String.hashCode(). |
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126 static unsigned int hash_string(jchar* s, int len) { |
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127 unsigned int h = 0; |
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128 while (len-- > 0) { |
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129 h = 31*h + (unsigned int) *s; |
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130 s++; |
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131 } |
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132 return h; |
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133 } |
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134 static unsigned int hash_string(oop java_string); |
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135 |
0 | 136 static bool equals(oop java_string, jchar* chars, int len); |
137 | |
138 // Conversion between '.' and '/' formats | |
139 static Handle externalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '/', '.', THREAD); } | |
140 static Handle internalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '.', '/', THREAD); } | |
141 | |
142 // Conversion | |
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143 static Symbol* as_symbol(Handle java_string, TRAPS); |
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144 static Symbol* as_symbol_or_null(oop java_string); |
0 | 145 |
146 // Testers | |
147 static bool is_instance(oop obj) { | |
1142 | 148 return obj != NULL && obj->klass() == SystemDictionary::String_klass(); |
0 | 149 } |
150 | |
151 // Debugging | |
152 static void print(Handle java_string, outputStream* st); | |
153 friend class JavaClasses; | |
154 }; | |
155 | |
156 | |
157 // Interface to java.lang.Class objects | |
158 | |
159 class java_lang_Class : AllStatic { | |
160 friend class VMStructs; | |
161 private: | |
162 // The fake offsets are added by the class loader when java.lang.Class is loaded | |
163 | |
164 enum { | |
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165 hc_number_of_fake_oop_fields = 3, |
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166 hc_number_of_fake_int_fields = 2 |
0 | 167 }; |
168 | |
169 static int klass_offset; | |
170 static int resolved_constructor_offset; | |
171 static int array_klass_offset; | |
172 static int number_of_fake_oop_fields; | |
173 | |
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174 static int oop_size_offset; |
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175 static int static_oop_field_count_offset; |
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176 |
0 | 177 static void compute_offsets(); |
178 static bool offsets_computed; | |
179 static int classRedefinedCount_offset; | |
514 | 180 static int parallelCapable_offset; |
0 | 181 |
182 public: | |
183 // Instance creation | |
184 static oop create_mirror(KlassHandle k, TRAPS); | |
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185 static void fixup_mirror(KlassHandle k, TRAPS); |
0 | 186 static oop create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS); |
187 // Conversion | |
188 static klassOop as_klassOop(oop java_class); | |
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189 static BasicType as_BasicType(oop java_class, klassOop* reference_klass = NULL); |
710 | 190 static BasicType as_BasicType(oop java_class, KlassHandle* reference_klass) { |
191 klassOop refk_oop = NULL; | |
192 BasicType result = as_BasicType(java_class, &refk_oop); | |
193 (*reference_klass) = KlassHandle(refk_oop); | |
194 return result; | |
195 } | |
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196 static Symbol* as_signature(oop java_class, bool intern_if_not_found, TRAPS); |
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197 static void print_signature(oop java_class, outputStream *st); |
0 | 198 // Testing |
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199 static bool is_instance(oop obj) { |
1142 | 200 return obj != NULL && obj->klass() == SystemDictionary::Class_klass(); |
132
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201 } |
0 | 202 static bool is_primitive(oop java_class); |
203 static BasicType primitive_type(oop java_class); | |
204 static oop primitive_mirror(BasicType t); | |
205 // JVM_NewInstance support | |
206 static methodOop resolved_constructor(oop java_class); | |
207 static void set_resolved_constructor(oop java_class, methodOop constructor); | |
208 // JVM_NewArray support | |
209 static klassOop array_klass(oop java_class); | |
210 static void set_array_klass(oop java_class, klassOop klass); | |
211 // compiler support for class operations | |
212 static int klass_offset_in_bytes() { return klass_offset; } | |
213 static int resolved_constructor_offset_in_bytes() { return resolved_constructor_offset; } | |
214 static int array_klass_offset_in_bytes() { return array_klass_offset; } | |
215 // Support for classRedefinedCount field | |
216 static int classRedefinedCount(oop the_class_mirror); | |
217 static void set_classRedefinedCount(oop the_class_mirror, int value); | |
514 | 218 // Support for parallelCapable field |
219 static bool parallelCapable(oop the_class_mirror); | |
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220 |
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221 static int oop_size(oop java_class); |
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222 static void set_oop_size(oop java_class, int size); |
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223 static int static_oop_field_count(oop java_class); |
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224 static void set_static_oop_field_count(oop java_class, int size); |
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225 |
0 | 226 // Debugging |
227 friend class JavaClasses; | |
228 friend class instanceKlass; // verification code accesses offsets | |
229 friend class ClassFileParser; // access to number_of_fake_fields | |
230 }; | |
231 | |
232 // Interface to java.lang.Thread objects | |
233 | |
234 class java_lang_Thread : AllStatic { | |
235 private: | |
236 // Note that for this class the layout changed between JDK1.2 and JDK1.3, | |
237 // so we compute the offsets at startup rather than hard-wiring them. | |
238 static int _name_offset; | |
239 static int _group_offset; | |
240 static int _contextClassLoader_offset; | |
241 static int _inheritedAccessControlContext_offset; | |
242 static int _priority_offset; | |
243 static int _eetop_offset; | |
244 static int _daemon_offset; | |
245 static int _stillborn_offset; | |
246 static int _stackSize_offset; | |
247 static int _tid_offset; | |
248 static int _thread_status_offset; | |
249 static int _park_blocker_offset; | |
250 static int _park_event_offset ; | |
251 | |
252 static void compute_offsets(); | |
253 | |
254 public: | |
255 // Instance creation | |
256 static oop create(); | |
257 // Returns the JavaThread associated with the thread obj | |
258 static JavaThread* thread(oop java_thread); | |
259 // Set JavaThread for instance | |
260 static void set_thread(oop java_thread, JavaThread* thread); | |
261 // Name | |
262 static typeArrayOop name(oop java_thread); | |
263 static void set_name(oop java_thread, typeArrayOop name); | |
264 // Priority | |
265 static ThreadPriority priority(oop java_thread); | |
266 static void set_priority(oop java_thread, ThreadPriority priority); | |
267 // Thread group | |
268 static oop threadGroup(oop java_thread); | |
269 // Stillborn | |
270 static bool is_stillborn(oop java_thread); | |
271 static void set_stillborn(oop java_thread); | |
272 // Alive (NOTE: this is not really a field, but provides the correct | |
273 // definition without doing a Java call) | |
274 static bool is_alive(oop java_thread); | |
275 // Daemon | |
276 static bool is_daemon(oop java_thread); | |
277 static void set_daemon(oop java_thread); | |
278 // Context ClassLoader | |
279 static oop context_class_loader(oop java_thread); | |
280 // Control context | |
281 static oop inherited_access_control_context(oop java_thread); | |
282 // Stack size hint | |
283 static jlong stackSize(oop java_thread); | |
284 // Thread ID | |
285 static jlong thread_id(oop java_thread); | |
286 | |
287 // Blocker object responsible for thread parking | |
288 static oop park_blocker(oop java_thread); | |
289 | |
290 // Pointer to type-stable park handler, encoded as jlong. | |
291 // Should be set when apparently null | |
292 // For details, see unsafe.cpp Unsafe_Unpark | |
293 static jlong park_event(oop java_thread); | |
294 static bool set_park_event(oop java_thread, jlong ptr); | |
295 | |
296 // Java Thread Status for JVMTI and M&M use. | |
297 // This thread status info is saved in threadStatus field of | |
298 // java.lang.Thread java class. | |
299 enum ThreadStatus { | |
300 NEW = 0, | |
301 RUNNABLE = JVMTI_THREAD_STATE_ALIVE + // runnable / running | |
302 JVMTI_THREAD_STATE_RUNNABLE, | |
303 SLEEPING = JVMTI_THREAD_STATE_ALIVE + // Thread.sleep() | |
304 JVMTI_THREAD_STATE_WAITING + | |
305 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + | |
306 JVMTI_THREAD_STATE_SLEEPING, | |
307 IN_OBJECT_WAIT = JVMTI_THREAD_STATE_ALIVE + // Object.wait() | |
308 JVMTI_THREAD_STATE_WAITING + | |
309 JVMTI_THREAD_STATE_WAITING_INDEFINITELY + | |
310 JVMTI_THREAD_STATE_IN_OBJECT_WAIT, | |
311 IN_OBJECT_WAIT_TIMED = JVMTI_THREAD_STATE_ALIVE + // Object.wait(long) | |
312 JVMTI_THREAD_STATE_WAITING + | |
313 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + | |
314 JVMTI_THREAD_STATE_IN_OBJECT_WAIT, | |
315 PARKED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park() | |
316 JVMTI_THREAD_STATE_WAITING + | |
317 JVMTI_THREAD_STATE_WAITING_INDEFINITELY + | |
318 JVMTI_THREAD_STATE_PARKED, | |
319 PARKED_TIMED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park(long) | |
320 JVMTI_THREAD_STATE_WAITING + | |
321 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + | |
322 JVMTI_THREAD_STATE_PARKED, | |
323 BLOCKED_ON_MONITOR_ENTER = JVMTI_THREAD_STATE_ALIVE + // (re-)entering a synchronization block | |
324 JVMTI_THREAD_STATE_BLOCKED_ON_MONITOR_ENTER, | |
325 TERMINATED = JVMTI_THREAD_STATE_TERMINATED | |
326 }; | |
327 // Write thread status info to threadStatus field of java.lang.Thread. | |
328 static void set_thread_status(oop java_thread_oop, ThreadStatus status); | |
329 // Read thread status info from threadStatus field of java.lang.Thread. | |
330 static ThreadStatus get_thread_status(oop java_thread_oop); | |
331 | |
332 static const char* thread_status_name(oop java_thread_oop); | |
333 | |
334 // Debugging | |
335 friend class JavaClasses; | |
336 }; | |
337 | |
338 // Interface to java.lang.ThreadGroup objects | |
339 | |
340 class java_lang_ThreadGroup : AllStatic { | |
341 private: | |
342 static int _parent_offset; | |
343 static int _name_offset; | |
344 static int _threads_offset; | |
345 static int _groups_offset; | |
346 static int _maxPriority_offset; | |
347 static int _destroyed_offset; | |
348 static int _daemon_offset; | |
349 static int _vmAllowSuspension_offset; | |
350 static int _nthreads_offset; | |
351 static int _ngroups_offset; | |
352 | |
353 static void compute_offsets(); | |
354 | |
355 public: | |
356 // parent ThreadGroup | |
357 static oop parent(oop java_thread_group); | |
358 // name | |
359 static typeArrayOop name(oop java_thread_group); | |
360 // ("name as oop" accessor is not necessary) | |
361 // Number of threads in group | |
362 static int nthreads(oop java_thread_group); | |
363 // threads | |
364 static objArrayOop threads(oop java_thread_group); | |
365 // Number of threads in group | |
366 static int ngroups(oop java_thread_group); | |
367 // groups | |
368 static objArrayOop groups(oop java_thread_group); | |
369 // maxPriority in group | |
370 static ThreadPriority maxPriority(oop java_thread_group); | |
371 // Destroyed | |
372 static bool is_destroyed(oop java_thread_group); | |
373 // Daemon | |
374 static bool is_daemon(oop java_thread_group); | |
375 // vmAllowSuspension | |
376 static bool is_vmAllowSuspension(oop java_thread_group); | |
377 // Debugging | |
378 friend class JavaClasses; | |
379 }; | |
380 | |
381 | |
382 | |
383 // Interface to java.lang.Throwable objects | |
384 | |
385 class java_lang_Throwable: AllStatic { | |
386 friend class BacktraceBuilder; | |
387 | |
388 private: | |
389 // Offsets | |
390 enum { | |
391 hc_backtrace_offset = 0, | |
392 hc_detailMessage_offset = 1, | |
393 hc_cause_offset = 2, // New since 1.4 | |
394 hc_stackTrace_offset = 3 // New since 1.4 | |
395 }; | |
396 // Trace constants | |
397 enum { | |
398 trace_methods_offset = 0, | |
399 trace_bcis_offset = 1, | |
400 trace_next_offset = 2, | |
401 trace_size = 3, | |
402 trace_chunk_size = 32 | |
403 }; | |
404 | |
405 static int backtrace_offset; | |
406 static int detailMessage_offset; | |
407 static int cause_offset; | |
408 static int stackTrace_offset; | |
409 | |
410 // Printing | |
411 static char* print_stack_element_to_buffer(methodOop method, int bci); | |
412 static void print_to_stream(Handle stream, const char* str); | |
413 // StackTrace (programmatic access, new since 1.4) | |
414 static void clear_stacktrace(oop throwable); | |
415 // No stack trace available | |
416 static const char* no_stack_trace_message(); | |
417 | |
418 public: | |
419 // Backtrace | |
420 static oop backtrace(oop throwable); | |
421 static void set_backtrace(oop throwable, oop value); | |
422 // Needed by JVMTI to filter out this internal field. | |
423 static int get_backtrace_offset() { return backtrace_offset;} | |
424 static int get_detailMessage_offset() { return detailMessage_offset;} | |
425 // Message | |
426 static oop message(oop throwable); | |
427 static oop message(Handle throwable); | |
428 static void set_message(oop throwable, oop value); | |
429 // Print stack trace stored in exception by call-back to Java | |
430 // Note: this is no longer used in Merlin, but we still suppport | |
431 // it for compatibility. | |
432 static void print_stack_trace(oop throwable, oop print_stream); | |
433 static void print_stack_element(Handle stream, methodOop method, int bci); | |
434 static void print_stack_element(outputStream *st, methodOop method, int bci); | |
435 static void print_stack_usage(Handle stream); | |
436 | |
437 // Allocate space for backtrace (created but stack trace not filled in) | |
438 static void allocate_backtrace(Handle throwable, TRAPS); | |
439 // Fill in current stack trace for throwable with preallocated backtrace (no GC) | |
440 static void fill_in_stack_trace_of_preallocated_backtrace(Handle throwable); | |
441 | |
442 // Fill in current stack trace, can cause GC | |
443 static void fill_in_stack_trace(Handle throwable, TRAPS); | |
444 static void fill_in_stack_trace(Handle throwable); | |
445 // Programmatic access to stack trace | |
446 static oop get_stack_trace_element(oop throwable, int index, TRAPS); | |
447 static int get_stack_trace_depth(oop throwable, TRAPS); | |
448 // Printing | |
449 static void print(oop throwable, outputStream* st); | |
450 static void print(Handle throwable, outputStream* st); | |
451 static void print_stack_trace(oop throwable, outputStream* st); | |
452 // Debugging | |
453 friend class JavaClasses; | |
454 }; | |
455 | |
456 | |
457 // Interface to java.lang.reflect.AccessibleObject objects | |
458 | |
459 class java_lang_reflect_AccessibleObject: AllStatic { | |
460 private: | |
461 // Note that to reduce dependencies on the JDK we compute these | |
462 // offsets at run-time. | |
463 static int override_offset; | |
464 | |
465 static void compute_offsets(); | |
466 | |
467 public: | |
468 // Accessors | |
469 static jboolean override(oop reflect); | |
470 static void set_override(oop reflect, jboolean value); | |
471 | |
472 // Debugging | |
473 friend class JavaClasses; | |
474 }; | |
475 | |
476 | |
477 // Interface to java.lang.reflect.Method objects | |
478 | |
479 class java_lang_reflect_Method : public java_lang_reflect_AccessibleObject { | |
480 private: | |
481 // Note that to reduce dependencies on the JDK we compute these | |
482 // offsets at run-time. | |
483 static int clazz_offset; | |
484 static int name_offset; | |
485 static int returnType_offset; | |
486 static int parameterTypes_offset; | |
487 static int exceptionTypes_offset; | |
488 static int slot_offset; | |
489 static int modifiers_offset; | |
490 static int signature_offset; | |
491 static int annotations_offset; | |
492 static int parameter_annotations_offset; | |
493 static int annotation_default_offset; | |
494 | |
495 static void compute_offsets(); | |
496 | |
497 public: | |
498 // Allocation | |
499 static Handle create(TRAPS); | |
500 | |
501 // Accessors | |
502 static oop clazz(oop reflect); | |
503 static void set_clazz(oop reflect, oop value); | |
504 | |
505 static oop name(oop method); | |
506 static void set_name(oop method, oop value); | |
507 | |
508 static oop return_type(oop method); | |
509 static void set_return_type(oop method, oop value); | |
510 | |
511 static oop parameter_types(oop method); | |
512 static void set_parameter_types(oop method, oop value); | |
513 | |
514 static oop exception_types(oop method); | |
515 static void set_exception_types(oop method, oop value); | |
516 | |
517 static int slot(oop reflect); | |
518 static void set_slot(oop reflect, int value); | |
519 | |
520 static int modifiers(oop method); | |
521 static void set_modifiers(oop method, int value); | |
522 | |
523 static bool has_signature_field(); | |
524 static oop signature(oop method); | |
525 static void set_signature(oop method, oop value); | |
526 | |
527 static bool has_annotations_field(); | |
528 static oop annotations(oop method); | |
529 static void set_annotations(oop method, oop value); | |
530 | |
531 static bool has_parameter_annotations_field(); | |
532 static oop parameter_annotations(oop method); | |
533 static void set_parameter_annotations(oop method, oop value); | |
534 | |
535 static bool has_annotation_default_field(); | |
536 static oop annotation_default(oop method); | |
537 static void set_annotation_default(oop method, oop value); | |
538 | |
539 // Debugging | |
540 friend class JavaClasses; | |
541 }; | |
542 | |
543 | |
544 // Interface to java.lang.reflect.Constructor objects | |
545 | |
546 class java_lang_reflect_Constructor : public java_lang_reflect_AccessibleObject { | |
547 private: | |
548 // Note that to reduce dependencies on the JDK we compute these | |
549 // offsets at run-time. | |
550 static int clazz_offset; | |
551 static int parameterTypes_offset; | |
552 static int exceptionTypes_offset; | |
553 static int slot_offset; | |
554 static int modifiers_offset; | |
555 static int signature_offset; | |
556 static int annotations_offset; | |
557 static int parameter_annotations_offset; | |
558 | |
559 static void compute_offsets(); | |
560 | |
561 public: | |
562 // Allocation | |
563 static Handle create(TRAPS); | |
564 | |
565 // Accessors | |
566 static oop clazz(oop reflect); | |
567 static void set_clazz(oop reflect, oop value); | |
568 | |
569 static oop parameter_types(oop constructor); | |
570 static void set_parameter_types(oop constructor, oop value); | |
571 | |
572 static oop exception_types(oop constructor); | |
573 static void set_exception_types(oop constructor, oop value); | |
574 | |
575 static int slot(oop reflect); | |
576 static void set_slot(oop reflect, int value); | |
577 | |
578 static int modifiers(oop constructor); | |
579 static void set_modifiers(oop constructor, int value); | |
580 | |
581 static bool has_signature_field(); | |
582 static oop signature(oop constructor); | |
583 static void set_signature(oop constructor, oop value); | |
584 | |
585 static bool has_annotations_field(); | |
586 static oop annotations(oop constructor); | |
587 static void set_annotations(oop constructor, oop value); | |
588 | |
589 static bool has_parameter_annotations_field(); | |
590 static oop parameter_annotations(oop method); | |
591 static void set_parameter_annotations(oop method, oop value); | |
592 | |
593 // Debugging | |
594 friend class JavaClasses; | |
595 }; | |
596 | |
597 | |
598 // Interface to java.lang.reflect.Field objects | |
599 | |
600 class java_lang_reflect_Field : public java_lang_reflect_AccessibleObject { | |
601 private: | |
602 // Note that to reduce dependencies on the JDK we compute these | |
603 // offsets at run-time. | |
604 static int clazz_offset; | |
605 static int name_offset; | |
606 static int type_offset; | |
607 static int slot_offset; | |
608 static int modifiers_offset; | |
609 static int signature_offset; | |
610 static int annotations_offset; | |
611 | |
612 static void compute_offsets(); | |
613 | |
614 public: | |
615 // Allocation | |
616 static Handle create(TRAPS); | |
617 | |
618 // Accessors | |
619 static oop clazz(oop reflect); | |
620 static void set_clazz(oop reflect, oop value); | |
621 | |
622 static oop name(oop field); | |
623 static void set_name(oop field, oop value); | |
624 | |
625 static oop type(oop field); | |
626 static void set_type(oop field, oop value); | |
627 | |
628 static int slot(oop reflect); | |
629 static void set_slot(oop reflect, int value); | |
630 | |
631 static int modifiers(oop field); | |
632 static void set_modifiers(oop field, int value); | |
633 | |
634 static bool has_signature_field(); | |
635 static oop signature(oop constructor); | |
636 static void set_signature(oop constructor, oop value); | |
637 | |
638 static bool has_annotations_field(); | |
639 static oop annotations(oop constructor); | |
640 static void set_annotations(oop constructor, oop value); | |
641 | |
642 static bool has_parameter_annotations_field(); | |
643 static oop parameter_annotations(oop method); | |
644 static void set_parameter_annotations(oop method, oop value); | |
645 | |
646 static bool has_annotation_default_field(); | |
647 static oop annotation_default(oop method); | |
648 static void set_annotation_default(oop method, oop value); | |
649 | |
650 // Debugging | |
651 friend class JavaClasses; | |
652 }; | |
653 | |
654 // Interface to sun.reflect.ConstantPool objects | |
655 class sun_reflect_ConstantPool { | |
656 private: | |
657 // Note that to reduce dependencies on the JDK we compute these | |
658 // offsets at run-time. | |
659 static int _cp_oop_offset; | |
660 | |
661 static void compute_offsets(); | |
662 | |
663 public: | |
664 // Allocation | |
665 static Handle create(TRAPS); | |
666 | |
667 // Accessors | |
668 static oop cp_oop(oop reflect); | |
669 static void set_cp_oop(oop reflect, oop value); | |
670 static int cp_oop_offset() { | |
671 return _cp_oop_offset; | |
672 } | |
673 | |
674 // Debugging | |
675 friend class JavaClasses; | |
676 }; | |
677 | |
678 // Interface to sun.reflect.UnsafeStaticFieldAccessorImpl objects | |
679 class sun_reflect_UnsafeStaticFieldAccessorImpl { | |
680 private: | |
681 static int _base_offset; | |
682 static void compute_offsets(); | |
683 | |
684 public: | |
685 static int base_offset() { | |
686 return _base_offset; | |
687 } | |
688 | |
689 // Debugging | |
690 friend class JavaClasses; | |
691 }; | |
692 | |
693 // Interface to java.lang primitive type boxing objects: | |
694 // - java.lang.Boolean | |
695 // - java.lang.Character | |
696 // - java.lang.Float | |
697 // - java.lang.Double | |
698 // - java.lang.Byte | |
699 // - java.lang.Short | |
700 // - java.lang.Integer | |
701 // - java.lang.Long | |
702 | |
703 // This could be separated out into 8 individual classes. | |
704 | |
705 class java_lang_boxing_object: AllStatic { | |
706 private: | |
707 enum { | |
708 hc_value_offset = 0 | |
709 }; | |
710 static int value_offset; | |
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711 static int long_value_offset; |
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713 static oop initialize_and_allocate(BasicType type, TRAPS); |
0 | 714 public: |
715 // Allocation. Returns a boxed value, or NULL for invalid type. | |
716 static oop create(BasicType type, jvalue* value, TRAPS); | |
717 // Accessors. Returns the basic type being boxed, or T_ILLEGAL for invalid oop. | |
718 static BasicType get_value(oop box, jvalue* value); | |
719 static BasicType set_value(oop box, jvalue* value); | |
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720 static BasicType basic_type(oop box); |
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721 static bool is_instance(oop box) { return basic_type(box) != T_ILLEGAL; } |
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722 static bool is_instance(oop box, BasicType type) { return basic_type(box) == type; } |
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723 static void print(oop box, outputStream* st) { jvalue value; print(get_value(box, &value), &value, st); } |
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724 static void print(BasicType type, jvalue* value, outputStream* st); |
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726 static int value_offset_in_bytes(BasicType type) { |
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727 return ( type == T_LONG || type == T_DOUBLE ) ? long_value_offset : |
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728 value_offset; |
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729 } |
0 | 730 |
731 // Debugging | |
732 friend class JavaClasses; | |
733 }; | |
734 | |
735 | |
736 | |
737 // Interface to java.lang.ref.Reference objects | |
738 | |
739 class java_lang_ref_Reference: AllStatic { | |
740 public: | |
741 enum { | |
742 hc_referent_offset = 0, | |
743 hc_queue_offset = 1, | |
744 hc_next_offset = 2, | |
745 hc_discovered_offset = 3 // Is not last, see SoftRefs. | |
746 }; | |
747 enum { | |
748 hc_static_lock_offset = 0, | |
749 hc_static_pending_offset = 1 | |
750 }; | |
751 | |
752 static int referent_offset; | |
753 static int queue_offset; | |
754 static int next_offset; | |
755 static int discovered_offset; | |
756 static int static_lock_offset; | |
757 static int static_pending_offset; | |
758 static int number_of_fake_oop_fields; | |
759 | |
760 // Accessors | |
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761 static oop referent(oop ref) { |
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762 return ref->obj_field(referent_offset); |
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763 } |
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764 static void set_referent(oop ref, oop value) { |
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765 ref->obj_field_put(referent_offset, value); |
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766 } |
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767 static void set_referent_raw(oop ref, oop value) { |
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768 ref->obj_field_raw_put(referent_offset, value); |
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769 } |
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770 static HeapWord* referent_addr(oop ref) { |
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771 return ref->obj_field_addr<HeapWord>(referent_offset); |
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772 } |
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773 static oop next(oop ref) { |
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774 return ref->obj_field(next_offset); |
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775 } |
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776 static void set_next(oop ref, oop value) { |
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777 ref->obj_field_put(next_offset, value); |
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778 } |
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779 static void set_next_raw(oop ref, oop value) { |
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780 ref->obj_field_raw_put(next_offset, value); |
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781 } |
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782 static HeapWord* next_addr(oop ref) { |
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783 return ref->obj_field_addr<HeapWord>(next_offset); |
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784 } |
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785 static oop discovered(oop ref) { |
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786 return ref->obj_field(discovered_offset); |
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787 } |
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788 static void set_discovered(oop ref, oop value) { |
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789 ref->obj_field_put(discovered_offset, value); |
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790 } |
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791 static void set_discovered_raw(oop ref, oop value) { |
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792 ref->obj_field_raw_put(discovered_offset, value); |
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793 } |
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794 static HeapWord* discovered_addr(oop ref) { |
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795 return ref->obj_field_addr<HeapWord>(discovered_offset); |
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796 } |
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797 // Accessors for statics |
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798 static oop pending_list_lock(); |
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799 static oop pending_list(); |
0 | 800 |
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801 static HeapWord* pending_list_addr(); |
0 | 802 }; |
803 | |
804 | |
805 // Interface to java.lang.ref.SoftReference objects | |
806 | |
807 class java_lang_ref_SoftReference: public java_lang_ref_Reference { | |
808 public: | |
809 enum { | |
810 // The timestamp is a long field and may need to be adjusted for alignment. | |
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811 hc_timestamp_offset = hc_discovered_offset + 1 |
0 | 812 }; |
813 enum { | |
814 hc_static_clock_offset = 0 | |
815 }; | |
816 | |
817 static int timestamp_offset; | |
818 static int static_clock_offset; | |
819 | |
820 // Accessors | |
821 static jlong timestamp(oop ref); | |
822 | |
823 // Accessors for statics | |
824 static jlong clock(); | |
825 static void set_clock(jlong value); | |
826 }; | |
827 | |
828 | |
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829 // Interface to java.lang.invoke.MethodHandle objects |
710 | 830 |
831 class MethodHandleEntry; | |
832 | |
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833 class java_lang_invoke_MethodHandle: AllStatic { |
710 | 834 friend class JavaClasses; |
835 | |
836 private: | |
837 static int _vmentry_offset; // assembly code trampoline for MH | |
838 static int _vmtarget_offset; // class-specific target reference | |
839 static int _type_offset; // the MethodType of this MH | |
840 static int _vmslots_offset; // OPTIONAL hoisted type.form.vmslots | |
841 | |
842 static void compute_offsets(); | |
843 | |
844 public: | |
845 // Accessors | |
846 static oop type(oop mh); | |
847 static void set_type(oop mh, oop mtype); | |
848 | |
849 static oop vmtarget(oop mh); | |
850 static void set_vmtarget(oop mh, oop target); | |
851 | |
852 static MethodHandleEntry* vmentry(oop mh); | |
853 static void set_vmentry(oop mh, MethodHandleEntry* data); | |
854 | |
855 static int vmslots(oop mh); | |
856 static void init_vmslots(oop mh); | |
857 static int compute_vmslots(oop mh); | |
858 | |
859 // Testers | |
860 static bool is_subclass(klassOop klass) { | |
861 return Klass::cast(klass)->is_subclass_of(SystemDictionary::MethodHandle_klass()); | |
862 } | |
863 static bool is_instance(oop obj) { | |
864 return obj != NULL && is_subclass(obj->klass()); | |
865 } | |
866 | |
867 // Accessors for code generation: | |
868 static int type_offset_in_bytes() { return _type_offset; } | |
869 static int vmtarget_offset_in_bytes() { return _vmtarget_offset; } | |
870 static int vmentry_offset_in_bytes() { return _vmentry_offset; } | |
871 static int vmslots_offset_in_bytes() { return _vmslots_offset; } | |
872 }; | |
873 | |
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874 class java_lang_invoke_DirectMethodHandle: public java_lang_invoke_MethodHandle { |
710 | 875 friend class JavaClasses; |
876 | |
877 private: | |
878 // _vmtarget_offset; // method or class or interface | |
879 static int _vmindex_offset; // negative or vtable idx or itable idx | |
880 static void compute_offsets(); | |
881 | |
882 public: | |
883 // Accessors | |
884 static int vmindex(oop mh); | |
885 static void set_vmindex(oop mh, int index); | |
886 | |
887 // Testers | |
888 static bool is_subclass(klassOop klass) { | |
889 return Klass::cast(klass)->is_subclass_of(SystemDictionary::DirectMethodHandle_klass()); | |
890 } | |
891 static bool is_instance(oop obj) { | |
892 return obj != NULL && is_subclass(obj->klass()); | |
893 } | |
894 | |
895 // Accessors for code generation: | |
896 static int vmindex_offset_in_bytes() { return _vmindex_offset; } | |
897 }; | |
898 | |
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899 class java_lang_invoke_BoundMethodHandle: public java_lang_invoke_MethodHandle { |
710 | 900 friend class JavaClasses; |
901 | |
902 private: | |
903 static int _argument_offset; // argument value bound into this MH | |
904 static int _vmargslot_offset; // relevant argument slot (<= vmslots) | |
905 static void compute_offsets(); | |
906 | |
907 public: | |
908 static oop argument(oop mh); | |
909 static void set_argument(oop mh, oop ref); | |
910 | |
911 static jint vmargslot(oop mh); | |
912 static void set_vmargslot(oop mh, jint slot); | |
913 | |
914 // Testers | |
915 static bool is_subclass(klassOop klass) { | |
916 return Klass::cast(klass)->is_subclass_of(SystemDictionary::BoundMethodHandle_klass()); | |
917 } | |
918 static bool is_instance(oop obj) { | |
919 return obj != NULL && is_subclass(obj->klass()); | |
920 } | |
921 | |
922 static int argument_offset_in_bytes() { return _argument_offset; } | |
923 static int vmargslot_offset_in_bytes() { return _vmargslot_offset; } | |
924 }; | |
925 | |
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926 class java_lang_invoke_AdapterMethodHandle: public java_lang_invoke_BoundMethodHandle { |
710 | 927 friend class JavaClasses; |
928 | |
929 private: | |
930 static int _conversion_offset; // type of conversion to apply | |
931 static void compute_offsets(); | |
932 | |
933 public: | |
934 static int conversion(oop mh); | |
935 static void set_conversion(oop mh, int conv); | |
936 | |
937 // Testers | |
938 static bool is_subclass(klassOop klass) { | |
939 return Klass::cast(klass)->is_subclass_of(SystemDictionary::AdapterMethodHandle_klass()); | |
940 } | |
941 static bool is_instance(oop obj) { | |
942 return obj != NULL && is_subclass(obj->klass()); | |
943 } | |
944 | |
945 // Relevant integer codes (keep these in synch. with MethodHandleNatives.Constants): | |
946 enum { | |
947 OP_RETYPE_ONLY = 0x0, // no argument changes; straight retype | |
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948 OP_RETYPE_RAW = 0x1, // straight retype, trusted (void->int, Object->T) |
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949 OP_CHECK_CAST = 0x2, // ref-to-ref conversion; requires a Class argument |
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950 OP_PRIM_TO_PRIM = 0x3, // converts from one primitive to another |
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951 OP_REF_TO_PRIM = 0x4, // unboxes a wrapper to produce a primitive |
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952 OP_PRIM_TO_REF = 0x5, // boxes a primitive into a wrapper (NYI) |
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953 OP_SWAP_ARGS = 0x6, // swap arguments (vminfo is 2nd arg) |
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954 OP_ROT_ARGS = 0x7, // rotate arguments (vminfo is displaced arg) |
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955 OP_DUP_ARGS = 0x8, // duplicates one or more arguments (at TOS) |
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956 OP_DROP_ARGS = 0x9, // remove one or more argument slots |
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957 OP_COLLECT_ARGS = 0xA, // combine one or more arguments into a varargs (NYI) |
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958 OP_SPREAD_ARGS = 0xB, // expand in place a varargs array (of known size) |
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959 OP_FLYBY = 0xC, // operate first on reified argument list (NYI) |
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960 OP_RICOCHET = 0xD, // run an adapter chain on the return value (NYI) |
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961 CONV_OP_LIMIT = 0xE, // limit of CONV_OP enumeration |
710 | 962 |
963 CONV_OP_MASK = 0xF00, // this nybble contains the conversion op field | |
964 CONV_VMINFO_MASK = 0x0FF, // LSB is reserved for JVM use | |
965 CONV_VMINFO_SHIFT = 0, // position of bits in CONV_VMINFO_MASK | |
966 CONV_OP_SHIFT = 8, // position of bits in CONV_OP_MASK | |
967 CONV_DEST_TYPE_SHIFT = 12, // byte 2 has the adapter BasicType (if needed) | |
968 CONV_SRC_TYPE_SHIFT = 16, // byte 2 has the source BasicType (if needed) | |
969 CONV_STACK_MOVE_SHIFT = 20, // high 12 bits give signed SP change | |
970 CONV_STACK_MOVE_MASK = (1 << (32 - CONV_STACK_MOVE_SHIFT)) - 1 | |
971 }; | |
972 | |
973 static int conversion_offset_in_bytes() { return _conversion_offset; } | |
974 }; | |
975 | |
976 | |
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977 // Interface to java.lang.invoke.MemberName objects |
710 | 978 // (These are a private interface for Java code to query the class hierarchy.) |
979 | |
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980 class java_lang_invoke_MemberName: AllStatic { |
710 | 981 friend class JavaClasses; |
982 | |
983 private: | |
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984 // From java.lang.invoke.MemberName: |
710 | 985 // private Class<?> clazz; // class in which the method is defined |
986 // private String name; // may be null if not yet materialized | |
987 // private Object type; // may be null if not yet materialized | |
988 // private int flags; // modifier bits; see reflect.Modifier | |
989 // private Object vmtarget; // VM-specific target value | |
990 // private int vmindex; // method index within class or interface | |
991 static int _clazz_offset; | |
992 static int _name_offset; | |
993 static int _type_offset; | |
994 static int _flags_offset; | |
995 static int _vmtarget_offset; | |
996 static int _vmindex_offset; | |
997 | |
998 static void compute_offsets(); | |
999 | |
1000 public: | |
1001 // Accessors | |
1002 static oop clazz(oop mname); | |
1003 static void set_clazz(oop mname, oop clazz); | |
1004 | |
1005 static oop type(oop mname); | |
1006 static void set_type(oop mname, oop type); | |
1007 | |
1008 static oop name(oop mname); | |
1009 static void set_name(oop mname, oop name); | |
1010 | |
1011 static int flags(oop mname); | |
1012 static void set_flags(oop mname, int flags); | |
1013 | |
1014 static int modifiers(oop mname) { return (u2) flags(mname); } | |
1015 static void set_modifiers(oop mname, int mods) | |
1016 { set_flags(mname, (flags(mname) &~ (u2)-1) | (u2)mods); } | |
1017 | |
1018 static oop vmtarget(oop mname); | |
1019 static void set_vmtarget(oop mname, oop target); | |
1020 | |
1021 static int vmindex(oop mname); | |
1022 static void set_vmindex(oop mname, int index); | |
1023 | |
1024 // Testers | |
1025 static bool is_subclass(klassOop klass) { | |
1026 return Klass::cast(klass)->is_subclass_of(SystemDictionary::MemberName_klass()); | |
1027 } | |
1028 static bool is_instance(oop obj) { | |
1029 return obj != NULL && is_subclass(obj->klass()); | |
1030 } | |
1031 | |
1032 // Relevant integer codes (keep these in synch. with MethodHandleNatives.Constants): | |
1033 enum { | |
1034 MN_IS_METHOD = 0x00010000, // method (not constructor) | |
1035 MN_IS_CONSTRUCTOR = 0x00020000, // constructor | |
1036 MN_IS_FIELD = 0x00040000, // field | |
1037 MN_IS_TYPE = 0x00080000, // nested type | |
1038 MN_SEARCH_SUPERCLASSES = 0x00100000, // for MHN.getMembers | |
1039 MN_SEARCH_INTERFACES = 0x00200000, // for MHN.getMembers | |
1040 VM_INDEX_UNINITIALIZED = -99 | |
1041 }; | |
1042 | |
1043 // Accessors for code generation: | |
1044 static int clazz_offset_in_bytes() { return _clazz_offset; } | |
1045 static int type_offset_in_bytes() { return _type_offset; } | |
1046 static int name_offset_in_bytes() { return _name_offset; } | |
1047 static int flags_offset_in_bytes() { return _flags_offset; } | |
1048 static int vmtarget_offset_in_bytes() { return _vmtarget_offset; } | |
1049 static int vmindex_offset_in_bytes() { return _vmindex_offset; } | |
1050 }; | |
1051 | |
1052 | |
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1053 // Interface to java.lang.invoke.MethodType objects |
710 | 1054 |
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1055 class java_lang_invoke_MethodType: AllStatic { |
710 | 1056 friend class JavaClasses; |
1057 | |
1058 private: | |
1059 static int _rtype_offset; | |
1060 static int _ptypes_offset; | |
1061 static int _form_offset; | |
1062 | |
1063 static void compute_offsets(); | |
1064 | |
1065 public: | |
1066 // Accessors | |
1067 static oop rtype(oop mt); | |
1068 static objArrayOop ptypes(oop mt); | |
1069 static oop form(oop mt); | |
1070 | |
1071 static oop ptype(oop mt, int index); | |
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1072 static int ptype_count(oop mt); |
710 | 1073 |
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1074 static Symbol* as_signature(oop mt, bool intern_if_not_found, TRAPS); |
710 | 1075 static void print_signature(oop mt, outputStream* st); |
1076 | |
1077 static bool is_instance(oop obj) { | |
1078 return obj != NULL && obj->klass() == SystemDictionary::MethodType_klass(); | |
1079 } | |
1080 | |
1081 // Accessors for code generation: | |
1082 static int rtype_offset_in_bytes() { return _rtype_offset; } | |
1083 static int ptypes_offset_in_bytes() { return _ptypes_offset; } | |
1084 static int form_offset_in_bytes() { return _form_offset; } | |
1085 }; | |
1086 | |
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1087 class java_lang_invoke_MethodTypeForm: AllStatic { |
710 | 1088 friend class JavaClasses; |
1089 | |
1090 private: | |
1091 static int _vmslots_offset; // number of argument slots needed | |
1092 static int _erasedType_offset; // erasedType = canonical MethodType | |
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1093 static int _genericInvoker_offset; // genericInvoker = adapter for invokeGeneric |
710 | 1094 |
1095 static void compute_offsets(); | |
1096 | |
1097 public: | |
1098 // Accessors | |
1099 static int vmslots(oop mtform); | |
1100 static oop erasedType(oop mtform); | |
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1101 static oop genericInvoker(oop mtform); |
710 | 1102 |
1103 // Accessors for code generation: | |
1104 static int vmslots_offset_in_bytes() { return _vmslots_offset; } | |
1105 static int erasedType_offset_in_bytes() { return _erasedType_offset; } | |
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1106 static int genericInvoker_offset_in_bytes() { return _genericInvoker_offset; } |
710 | 1107 }; |
1108 | |
1109 | |
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1110 // Interface to java.lang.invoke.CallSite objects |
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1111 |
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1112 class java_lang_invoke_CallSite: AllStatic { |
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1113 friend class JavaClasses; |
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1114 |
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1115 private: |
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1116 static int _target_offset; |
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1117 static int _caller_method_offset; |
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1118 static int _caller_bci_offset; |
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1119 |
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1120 static void compute_offsets(); |
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1121 |
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1122 public: |
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1123 // Accessors |
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1124 static oop target(oop site); |
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1125 static void set_target(oop site, oop target); |
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1126 |
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1127 static oop caller_method(oop site); |
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1128 static void set_caller_method(oop site, oop ref); |
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1129 |
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1130 static jint caller_bci(oop site); |
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1131 static void set_caller_bci(oop site, jint bci); |
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1132 |
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1133 // Testers |
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1134 static bool is_subclass(klassOop klass) { |
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1135 return Klass::cast(klass)->is_subclass_of(SystemDictionary::CallSite_klass()); |
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1136 } |
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1137 static bool is_instance(oop obj) { |
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1138 return obj != NULL && is_subclass(obj->klass()); |
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1139 } |
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1140 |
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1141 // Accessors for code generation: |
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1142 static int target_offset_in_bytes() { return _target_offset; } |
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1143 static int caller_method_offset_in_bytes() { return _caller_method_offset; } |
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1144 static int caller_bci_offset_in_bytes() { return _caller_bci_offset; } |
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1145 }; |
710 | 1146 |
1147 | |
0 | 1148 // Interface to java.security.AccessControlContext objects |
1149 | |
1150 class java_security_AccessControlContext: AllStatic { | |
1151 private: | |
1152 // Note that for this class the layout changed between JDK1.2 and JDK1.3, | |
1153 // so we compute the offsets at startup rather than hard-wiring them. | |
1154 static int _context_offset; | |
1155 static int _privilegedContext_offset; | |
1156 static int _isPrivileged_offset; | |
1157 | |
1158 static void compute_offsets(); | |
1159 public: | |
1160 static oop create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS); | |
1161 | |
1162 // Debugging/initialization | |
1163 friend class JavaClasses; | |
1164 }; | |
1165 | |
1166 | |
1167 // Interface to java.lang.ClassLoader objects | |
1168 | |
1169 class java_lang_ClassLoader : AllStatic { | |
1170 private: | |
1171 enum { | |
1172 hc_parent_offset = 0 | |
1173 }; | |
1174 | |
1175 static int parent_offset; | |
1176 | |
1177 public: | |
1178 static oop parent(oop loader); | |
1179 | |
1180 static bool is_trusted_loader(oop loader); | |
1181 | |
1182 // Fix for 4474172 | |
1183 static oop non_reflection_class_loader(oop loader); | |
1184 | |
1185 // Debugging | |
1186 friend class JavaClasses; | |
1187 }; | |
1188 | |
1189 | |
1190 // Interface to java.lang.System objects | |
1191 | |
1192 class java_lang_System : AllStatic { | |
1193 private: | |
1194 enum { | |
1195 hc_static_in_offset = 0, | |
1196 hc_static_out_offset = 1, | |
1197 hc_static_err_offset = 2 | |
1198 }; | |
1199 | |
1200 static int static_in_offset; | |
1201 static int static_out_offset; | |
1202 static int static_err_offset; | |
1203 | |
1204 public: | |
1205 static int in_offset_in_bytes(); | |
1206 static int out_offset_in_bytes(); | |
1207 static int err_offset_in_bytes(); | |
1208 | |
1209 // Debugging | |
1210 friend class JavaClasses; | |
1211 }; | |
1212 | |
1213 | |
1214 // Interface to java.lang.StackTraceElement objects | |
1215 | |
1216 class java_lang_StackTraceElement: AllStatic { | |
1217 private: | |
1218 enum { | |
1219 hc_declaringClass_offset = 0, | |
1220 hc_methodName_offset = 1, | |
1221 hc_fileName_offset = 2, | |
1222 hc_lineNumber_offset = 3 | |
1223 }; | |
1224 | |
1225 static int declaringClass_offset; | |
1226 static int methodName_offset; | |
1227 static int fileName_offset; | |
1228 static int lineNumber_offset; | |
1229 | |
1230 public: | |
1231 // Setters | |
1232 static void set_declaringClass(oop element, oop value); | |
1233 static void set_methodName(oop element, oop value); | |
1234 static void set_fileName(oop element, oop value); | |
1235 static void set_lineNumber(oop element, int value); | |
1236 | |
1237 // Create an instance of StackTraceElement | |
1238 static oop create(methodHandle m, int bci, TRAPS); | |
1239 | |
1240 // Debugging | |
1241 friend class JavaClasses; | |
1242 }; | |
1243 | |
1244 | |
1245 // Interface to java.lang.AssertionStatusDirectives objects | |
1246 | |
1247 class java_lang_AssertionStatusDirectives: AllStatic { | |
1248 private: | |
1249 enum { | |
1250 hc_classes_offset, | |
1251 hc_classEnabled_offset, | |
1252 hc_packages_offset, | |
1253 hc_packageEnabled_offset, | |
1254 hc_deflt_offset | |
1255 }; | |
1256 | |
1257 static int classes_offset; | |
1258 static int classEnabled_offset; | |
1259 static int packages_offset; | |
1260 static int packageEnabled_offset; | |
1261 static int deflt_offset; | |
1262 | |
1263 public: | |
1264 // Setters | |
1265 static void set_classes(oop obj, oop val); | |
1266 static void set_classEnabled(oop obj, oop val); | |
1267 static void set_packages(oop obj, oop val); | |
1268 static void set_packageEnabled(oop obj, oop val); | |
1269 static void set_deflt(oop obj, bool val); | |
1270 // Debugging | |
1271 friend class JavaClasses; | |
1272 }; | |
1273 | |
1274 | |
1275 class java_nio_Buffer: AllStatic { | |
1276 private: | |
1277 static int _limit_offset; | |
1278 | |
1279 public: | |
1280 static int limit_offset(); | |
1281 static void compute_offsets(); | |
1282 }; | |
1283 | |
1284 class sun_misc_AtomicLongCSImpl: AllStatic { | |
1285 private: | |
1286 static int _value_offset; | |
1287 | |
1288 public: | |
1289 static int value_offset(); | |
1290 static void compute_offsets(); | |
1291 }; | |
1292 | |
1293 class java_util_concurrent_locks_AbstractOwnableSynchronizer : AllStatic { | |
1294 private: | |
1295 static int _owner_offset; | |
1296 public: | |
1297 static void initialize(TRAPS); | |
1298 static oop get_owner_threadObj(oop obj); | |
1299 }; | |
1300 | |
1301 // Interface to hard-coded offset checking | |
1302 | |
1303 class JavaClasses : AllStatic { | |
1304 private: | |
1305 static bool check_offset(const char *klass_name, int offset, const char *field_name, const char* field_sig) PRODUCT_RETURN0; | |
1306 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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1307 static bool check_constant(const char *klass_name, int constant, const char *field_name, const char* field_sig) PRODUCT_RETURN0; |
0 | 1308 public: |
1309 static void compute_hard_coded_offsets(); | |
1310 static void compute_offsets(); | |
1311 static void check_offsets() PRODUCT_RETURN; | |
1312 }; | |
1972 | 1313 |
1314 #endif // SHARE_VM_CLASSFILE_JAVACLASSES_HPP |