Mercurial > hg > graal-compiler
annotate src/share/vm/classfile/javaClasses.hpp @ 9771:4de03457d5c8
replaced MonitorEnterStubCall with usage of ForeignCallNode
author | Doug Simon <doug.simon@oracle.com> |
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date | Fri, 17 May 2013 22:22:53 +0200 |
parents | b9a918201d47 |
children | 836a62f43af9 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2013, 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 static int value_offset; | |
56 static int offset_offset; | |
57 static int count_offset; | |
58 static int hash_offset; | |
59 | |
6057 | 60 static bool initialized; |
61 | |
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62 static Handle basic_create(int length, TRAPS); |
0 | 63 |
6057 | 64 static void set_value( oop string, typeArrayOop buffer) { |
65 assert(initialized, "Must be initialized"); | |
66 string->obj_field_put(value_offset, (oop)buffer); | |
67 } | |
68 static void set_offset(oop string, int offset) { | |
69 assert(initialized, "Must be initialized"); | |
70 if (offset_offset > 0) { | |
71 string->int_field_put(offset_offset, offset); | |
72 } | |
73 } | |
74 static void set_count( oop string, int count) { | |
75 assert(initialized, "Must be initialized"); | |
76 if (count_offset > 0) { | |
77 string->int_field_put(count_offset, count); | |
78 } | |
79 } | |
0 | 80 |
81 public: | |
6057 | 82 static void compute_offsets(); |
83 | |
0 | 84 // Instance creation |
85 static Handle create_from_unicode(jchar* unicode, int len, TRAPS); | |
86 static oop create_oop_from_unicode(jchar* unicode, int len, TRAPS); | |
87 static Handle create_from_str(const char* utf8_str, TRAPS); | |
88 static oop create_oop_from_str(const char* utf8_str, TRAPS); | |
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89 static Handle create_from_symbol(Symbol* symbol, TRAPS); |
0 | 90 static Handle create_from_platform_dependent_str(const char* str, TRAPS); |
91 static Handle char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS); | |
92 | |
6057 | 93 static bool has_offset_field() { |
94 assert(initialized, "Must be initialized"); | |
95 return (offset_offset > 0); | |
96 } | |
97 | |
98 static bool has_count_field() { | |
99 assert(initialized, "Must be initialized"); | |
100 return (count_offset > 0); | |
101 } | |
102 | |
103 static bool has_hash_field() { | |
104 assert(initialized, "Must be initialized"); | |
105 return (hash_offset > 0); | |
106 } | |
107 | |
108 static int value_offset_in_bytes() { | |
109 assert(initialized && (value_offset > 0), "Must be initialized"); | |
110 return value_offset; | |
111 } | |
112 static int count_offset_in_bytes() { | |
113 assert(initialized && (count_offset > 0), "Must be initialized"); | |
114 return count_offset; | |
115 } | |
116 static int offset_offset_in_bytes() { | |
117 assert(initialized && (offset_offset > 0), "Must be initialized"); | |
118 return offset_offset; | |
119 } | |
120 static int hash_offset_in_bytes() { | |
121 assert(initialized && (hash_offset > 0), "Must be initialized"); | |
122 return hash_offset; | |
123 } | |
0 | 124 |
125 // Accessors | |
126 static typeArrayOop value(oop java_string) { | |
6057 | 127 assert(initialized && (value_offset > 0), "Must be initialized"); |
0 | 128 assert(is_instance(java_string), "must be java_string"); |
129 return (typeArrayOop) java_string->obj_field(value_offset); | |
130 } | |
131 static int offset(oop java_string) { | |
6057 | 132 assert(initialized, "Must be initialized"); |
0 | 133 assert(is_instance(java_string), "must be java_string"); |
6057 | 134 if (offset_offset > 0) { |
135 return java_string->int_field(offset_offset); | |
136 } else { | |
137 return 0; | |
138 } | |
0 | 139 } |
140 static int length(oop java_string) { | |
6057 | 141 assert(initialized, "Must be initialized"); |
0 | 142 assert(is_instance(java_string), "must be java_string"); |
6057 | 143 if (count_offset > 0) { |
144 return java_string->int_field(count_offset); | |
145 } else { | |
146 return ((typeArrayOop)java_string->obj_field(value_offset))->length(); | |
147 } | |
0 | 148 } |
149 static int utf8_length(oop java_string); | |
150 | |
151 // String converters | |
152 static char* as_utf8_string(oop java_string); | |
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153 static char* as_utf8_string(oop java_string, char* buf, int buflen); |
0 | 154 static char* as_utf8_string(oop java_string, int start, int len); |
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155 static char* as_platform_dependent_str(Handle java_string, TRAPS); |
0 | 156 static jchar* as_unicode_string(oop java_string, int& length); |
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157 // produce an ascii string with all other values quoted using \u#### |
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158 static char* as_quoted_ascii(oop java_string); |
0 | 159 |
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160 // Compute the hash value for a java.lang.String object which would |
6162 | 161 // contain the characters passed in. |
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162 // |
6162 | 163 // As the hash value used by the String object itself, in |
164 // String.hashCode(). This value is normally calculated in Java code | |
165 // in the String.hashCode method(), but is precomputed for String | |
166 // objects in the shared archive file. | |
167 // hash P(31) from Kernighan & Ritchie | |
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168 // |
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169 // For this reason, THIS ALGORITHM MUST MATCH String.hashCode(). |
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170 template <typename T> static unsigned int hash_code(T* s, int len) { |
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171 unsigned int h = 0; |
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172 while (len-- > 0) { |
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173 h = 31*h + (unsigned int) *s; |
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174 s++; |
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175 } |
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176 return h; |
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177 } |
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178 static unsigned int hash_code(oop java_string); |
6162 | 179 |
180 // This is the string hash code used by the StringTable, which may be | |
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181 // the same as String.hashCode or an alternate hash code. |
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182 static unsigned int hash_string(oop java_string); |
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183 |
0 | 184 static bool equals(oop java_string, jchar* chars, int len); |
185 | |
186 // Conversion between '.' and '/' formats | |
187 static Handle externalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '/', '.', THREAD); } | |
188 static Handle internalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '.', '/', THREAD); } | |
189 | |
190 // Conversion | |
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191 static Symbol* as_symbol(Handle java_string, TRAPS); |
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192 static Symbol* as_symbol_or_null(oop java_string); |
0 | 193 |
194 // Testers | |
195 static bool is_instance(oop obj) { | |
1142 | 196 return obj != NULL && obj->klass() == SystemDictionary::String_klass(); |
0 | 197 } |
198 | |
199 // Debugging | |
200 static void print(Handle java_string, outputStream* st); | |
201 friend class JavaClasses; | |
202 }; | |
203 | |
204 | |
205 // Interface to java.lang.Class objects | |
206 | |
3938 | 207 #define CLASS_INJECTED_FIELDS(macro) \ |
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208 macro(java_lang_Class, klass, intptr_signature, false) \ |
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209 GRAAL_ONLY(macro(java_lang_Class, graal_mirror, object_signature, false))\ |
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210 macro(java_lang_Class, array_klass, intptr_signature, false) \ |
3938 | 211 macro(java_lang_Class, oop_size, int_signature, false) \ |
212 macro(java_lang_Class, static_oop_field_count, int_signature, false) | |
213 | |
0 | 214 class java_lang_Class : AllStatic { |
3938 | 215 friend class VMStructs; |
216 | |
0 | 217 private: |
218 // The fake offsets are added by the class loader when java.lang.Class is loaded | |
219 | |
3938 | 220 static int _klass_offset; |
221 static int _array_klass_offset; | |
0 | 222 |
3938 | 223 static int _oop_size_offset; |
224 static int _static_oop_field_count_offset; | |
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225 #ifdef GRAAL |
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226 static int _graal_mirror_offset; |
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227 #endif |
0 | 228 |
229 static bool offsets_computed; | |
230 static int classRedefinedCount_offset; | |
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231 static GrowableArray<Klass*>* _fixup_mirror_list; |
0 | 232 |
233 public: | |
3938 | 234 static void compute_offsets(); |
235 | |
0 | 236 // Instance creation |
237 static oop create_mirror(KlassHandle k, TRAPS); | |
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238 static void fixup_mirror(KlassHandle k, TRAPS); |
0 | 239 static oop create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS); |
240 // Conversion | |
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241 static Klass* as_Klass(oop java_class); |
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242 static void set_klass(oop java_class, Klass* klass); |
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243 static BasicType as_BasicType(oop java_class, Klass** reference_klass = NULL); |
710 | 244 static BasicType as_BasicType(oop java_class, KlassHandle* reference_klass) { |
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245 Klass* refk_oop = NULL; |
710 | 246 BasicType result = as_BasicType(java_class, &refk_oop); |
247 (*reference_klass) = KlassHandle(refk_oop); | |
248 return result; | |
249 } | |
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250 static Symbol* as_signature(oop java_class, bool intern_if_not_found, TRAPS); |
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251 static void print_signature(oop java_class, outputStream *st); |
0 | 252 // Testing |
132
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253 static bool is_instance(oop obj) { |
1142 | 254 return obj != NULL && obj->klass() == SystemDictionary::Class_klass(); |
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255 } |
0 | 256 static bool is_primitive(oop java_class); |
257 static BasicType primitive_type(oop java_class); | |
258 static oop primitive_mirror(BasicType t); | |
259 // JVM_NewArray support | |
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260 static Klass* array_klass(oop java_class); |
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261 static void set_array_klass(oop java_class, Klass* klass); |
0 | 262 // compiler support for class operations |
3938 | 263 static int klass_offset_in_bytes() { return _klass_offset; } |
264 static int array_klass_offset_in_bytes() { return _array_klass_offset; } | |
0 | 265 // Support for classRedefinedCount field |
266 static int classRedefinedCount(oop the_class_mirror); | |
267 static void set_classRedefinedCount(oop the_class_mirror, int value); | |
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268 |
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269 static int oop_size(oop java_class); |
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270 static void set_oop_size(oop java_class, int size); |
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271 static int static_oop_field_count(oop java_class); |
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272 static void set_static_oop_field_count(oop java_class, int size); |
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273 |
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274 #ifdef GRAAL |
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275 static oop graal_mirror(oop java_class); |
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276 static int graal_mirror_offset_in_bytes() { return _graal_mirror_offset; } |
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277 #endif |
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278 |
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279 static GrowableArray<Klass*>* fixup_mirror_list() { |
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280 return _fixup_mirror_list; |
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281 } |
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282 static void set_fixup_mirror_list(GrowableArray<Klass*>* v) { |
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283 _fixup_mirror_list = v; |
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284 } |
0 | 285 // Debugging |
286 friend class JavaClasses; | |
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287 friend class InstanceKlass; // verification code accesses offsets |
0 | 288 friend class ClassFileParser; // access to number_of_fake_fields |
289 }; | |
290 | |
291 // Interface to java.lang.Thread objects | |
292 | |
293 class java_lang_Thread : AllStatic { | |
294 private: | |
295 // Note that for this class the layout changed between JDK1.2 and JDK1.3, | |
296 // so we compute the offsets at startup rather than hard-wiring them. | |
297 static int _name_offset; | |
298 static int _group_offset; | |
299 static int _contextClassLoader_offset; | |
300 static int _inheritedAccessControlContext_offset; | |
301 static int _priority_offset; | |
302 static int _eetop_offset; | |
303 static int _daemon_offset; | |
304 static int _stillborn_offset; | |
305 static int _stackSize_offset; | |
306 static int _tid_offset; | |
307 static int _thread_status_offset; | |
308 static int _park_blocker_offset; | |
309 static int _park_event_offset ; | |
310 | |
311 static void compute_offsets(); | |
312 | |
313 public: | |
314 // Instance creation | |
315 static oop create(); | |
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316 static int java_thread_offset_in_bytes() { return _eetop_offset; } |
0 | 317 // Returns the JavaThread associated with the thread obj |
318 static JavaThread* thread(oop java_thread); | |
319 // Set JavaThread for instance | |
320 static void set_thread(oop java_thread, JavaThread* thread); | |
321 // Name | |
322 static typeArrayOop name(oop java_thread); | |
323 static void set_name(oop java_thread, typeArrayOop name); | |
324 // Priority | |
325 static ThreadPriority priority(oop java_thread); | |
326 static void set_priority(oop java_thread, ThreadPriority priority); | |
327 // Thread group | |
328 static oop threadGroup(oop java_thread); | |
329 // Stillborn | |
330 static bool is_stillborn(oop java_thread); | |
331 static void set_stillborn(oop java_thread); | |
332 // Alive (NOTE: this is not really a field, but provides the correct | |
333 // definition without doing a Java call) | |
334 static bool is_alive(oop java_thread); | |
335 // Daemon | |
336 static bool is_daemon(oop java_thread); | |
337 static void set_daemon(oop java_thread); | |
338 // Context ClassLoader | |
339 static oop context_class_loader(oop java_thread); | |
340 // Control context | |
341 static oop inherited_access_control_context(oop java_thread); | |
342 // Stack size hint | |
343 static jlong stackSize(oop java_thread); | |
344 // Thread ID | |
345 static jlong thread_id(oop java_thread); | |
346 | |
347 // Blocker object responsible for thread parking | |
348 static oop park_blocker(oop java_thread); | |
349 | |
350 // Pointer to type-stable park handler, encoded as jlong. | |
351 // Should be set when apparently null | |
352 // For details, see unsafe.cpp Unsafe_Unpark | |
353 static jlong park_event(oop java_thread); | |
354 static bool set_park_event(oop java_thread, jlong ptr); | |
355 | |
356 // Java Thread Status for JVMTI and M&M use. | |
357 // This thread status info is saved in threadStatus field of | |
358 // java.lang.Thread java class. | |
359 enum ThreadStatus { | |
360 NEW = 0, | |
361 RUNNABLE = JVMTI_THREAD_STATE_ALIVE + // runnable / running | |
362 JVMTI_THREAD_STATE_RUNNABLE, | |
363 SLEEPING = JVMTI_THREAD_STATE_ALIVE + // Thread.sleep() | |
364 JVMTI_THREAD_STATE_WAITING + | |
365 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + | |
366 JVMTI_THREAD_STATE_SLEEPING, | |
367 IN_OBJECT_WAIT = JVMTI_THREAD_STATE_ALIVE + // Object.wait() | |
368 JVMTI_THREAD_STATE_WAITING + | |
369 JVMTI_THREAD_STATE_WAITING_INDEFINITELY + | |
370 JVMTI_THREAD_STATE_IN_OBJECT_WAIT, | |
371 IN_OBJECT_WAIT_TIMED = JVMTI_THREAD_STATE_ALIVE + // Object.wait(long) | |
372 JVMTI_THREAD_STATE_WAITING + | |
373 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + | |
374 JVMTI_THREAD_STATE_IN_OBJECT_WAIT, | |
375 PARKED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park() | |
376 JVMTI_THREAD_STATE_WAITING + | |
377 JVMTI_THREAD_STATE_WAITING_INDEFINITELY + | |
378 JVMTI_THREAD_STATE_PARKED, | |
379 PARKED_TIMED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park(long) | |
380 JVMTI_THREAD_STATE_WAITING + | |
381 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + | |
382 JVMTI_THREAD_STATE_PARKED, | |
383 BLOCKED_ON_MONITOR_ENTER = JVMTI_THREAD_STATE_ALIVE + // (re-)entering a synchronization block | |
384 JVMTI_THREAD_STATE_BLOCKED_ON_MONITOR_ENTER, | |
385 TERMINATED = JVMTI_THREAD_STATE_TERMINATED | |
386 }; | |
387 // Write thread status info to threadStatus field of java.lang.Thread. | |
388 static void set_thread_status(oop java_thread_oop, ThreadStatus status); | |
389 // Read thread status info from threadStatus field of java.lang.Thread. | |
390 static ThreadStatus get_thread_status(oop java_thread_oop); | |
391 | |
392 static const char* thread_status_name(oop java_thread_oop); | |
393 | |
394 // Debugging | |
395 friend class JavaClasses; | |
396 }; | |
397 | |
398 // Interface to java.lang.ThreadGroup objects | |
399 | |
400 class java_lang_ThreadGroup : AllStatic { | |
401 private: | |
402 static int _parent_offset; | |
403 static int _name_offset; | |
404 static int _threads_offset; | |
405 static int _groups_offset; | |
406 static int _maxPriority_offset; | |
407 static int _destroyed_offset; | |
408 static int _daemon_offset; | |
409 static int _vmAllowSuspension_offset; | |
410 static int _nthreads_offset; | |
411 static int _ngroups_offset; | |
412 | |
413 static void compute_offsets(); | |
414 | |
415 public: | |
416 // parent ThreadGroup | |
417 static oop parent(oop java_thread_group); | |
418 // name | |
419 static typeArrayOop name(oop java_thread_group); | |
420 // ("name as oop" accessor is not necessary) | |
421 // Number of threads in group | |
422 static int nthreads(oop java_thread_group); | |
423 // threads | |
424 static objArrayOop threads(oop java_thread_group); | |
425 // Number of threads in group | |
426 static int ngroups(oop java_thread_group); | |
427 // groups | |
428 static objArrayOop groups(oop java_thread_group); | |
429 // maxPriority in group | |
430 static ThreadPriority maxPriority(oop java_thread_group); | |
431 // Destroyed | |
432 static bool is_destroyed(oop java_thread_group); | |
433 // Daemon | |
434 static bool is_daemon(oop java_thread_group); | |
435 // vmAllowSuspension | |
436 static bool is_vmAllowSuspension(oop java_thread_group); | |
437 // Debugging | |
438 friend class JavaClasses; | |
439 }; | |
440 | |
441 | |
442 | |
443 // Interface to java.lang.Throwable objects | |
444 | |
445 class java_lang_Throwable: AllStatic { | |
446 friend class BacktraceBuilder; | |
447 | |
448 private: | |
449 // Offsets | |
450 enum { | |
451 hc_backtrace_offset = 0, | |
452 hc_detailMessage_offset = 1, | |
453 hc_cause_offset = 2, // New since 1.4 | |
454 hc_stackTrace_offset = 3 // New since 1.4 | |
455 }; | |
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456 enum { |
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457 hc_static_unassigned_stacktrace_offset = 0 // New since 1.7 |
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458 }; |
0 | 459 // Trace constants |
460 enum { | |
461 trace_methods_offset = 0, | |
462 trace_bcis_offset = 1, | |
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463 trace_mirrors_offset = 2, |
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464 trace_next_offset = 3, |
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465 trace_size = 4, |
0 | 466 trace_chunk_size = 32 |
467 }; | |
468 | |
469 static int backtrace_offset; | |
470 static int detailMessage_offset; | |
471 static int cause_offset; | |
472 static int stackTrace_offset; | |
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473 static int static_unassigned_stacktrace_offset; |
0 | 474 |
475 // Printing | |
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476 static char* print_stack_element_to_buffer(Handle mirror, int method, int version, int bci); |
0 | 477 // StackTrace (programmatic access, new since 1.4) |
478 static void clear_stacktrace(oop throwable); | |
479 // No stack trace available | |
480 static const char* no_stack_trace_message(); | |
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481 // Stacktrace (post JDK 1.7.0 to allow immutability protocol to be followed) |
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482 static void set_stacktrace(oop throwable, oop st_element_array); |
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483 static oop unassigned_stacktrace(); |
0 | 484 |
485 public: | |
486 // Backtrace | |
487 static oop backtrace(oop throwable); | |
488 static void set_backtrace(oop throwable, oop value); | |
489 // Needed by JVMTI to filter out this internal field. | |
490 static int get_backtrace_offset() { return backtrace_offset;} | |
491 static int get_detailMessage_offset() { return detailMessage_offset;} | |
492 // Message | |
493 static oop message(oop throwable); | |
494 static oop message(Handle throwable); | |
495 static void set_message(oop throwable, oop value); | |
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496 static void print_stack_element(outputStream *st, Handle mirror, int method, |
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497 int version, int bci); |
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498 static void print_stack_element(outputStream *st, methodHandle method, int bci); |
0 | 499 static void print_stack_usage(Handle stream); |
500 | |
501 // Allocate space for backtrace (created but stack trace not filled in) | |
502 static void allocate_backtrace(Handle throwable, TRAPS); | |
503 // Fill in current stack trace for throwable with preallocated backtrace (no GC) | |
504 static void fill_in_stack_trace_of_preallocated_backtrace(Handle throwable); | |
505 // Fill in current stack trace, can cause GC | |
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506 static void fill_in_stack_trace(Handle throwable, methodHandle method, TRAPS); |
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507 static void fill_in_stack_trace(Handle throwable, methodHandle method = methodHandle()); |
0 | 508 // Programmatic access to stack trace |
509 static oop get_stack_trace_element(oop throwable, int index, TRAPS); | |
510 static int get_stack_trace_depth(oop throwable, TRAPS); | |
511 // Printing | |
512 static void print(oop throwable, outputStream* st); | |
513 static void print(Handle throwable, outputStream* st); | |
514 static void print_stack_trace(oop throwable, outputStream* st); | |
515 // Debugging | |
516 friend class JavaClasses; | |
517 }; | |
518 | |
519 | |
520 // Interface to java.lang.reflect.AccessibleObject objects | |
521 | |
522 class java_lang_reflect_AccessibleObject: AllStatic { | |
523 private: | |
524 // Note that to reduce dependencies on the JDK we compute these | |
525 // offsets at run-time. | |
526 static int override_offset; | |
527 | |
528 static void compute_offsets(); | |
529 | |
530 public: | |
531 // Accessors | |
532 static jboolean override(oop reflect); | |
533 static void set_override(oop reflect, jboolean value); | |
534 | |
535 // Debugging | |
536 friend class JavaClasses; | |
537 }; | |
538 | |
539 | |
540 // Interface to java.lang.reflect.Method objects | |
541 | |
542 class java_lang_reflect_Method : public java_lang_reflect_AccessibleObject { | |
543 private: | |
544 // Note that to reduce dependencies on the JDK we compute these | |
545 // offsets at run-time. | |
546 static int clazz_offset; | |
547 static int name_offset; | |
548 static int returnType_offset; | |
549 static int parameterTypes_offset; | |
550 static int exceptionTypes_offset; | |
551 static int slot_offset; | |
552 static int modifiers_offset; | |
553 static int signature_offset; | |
554 static int annotations_offset; | |
555 static int parameter_annotations_offset; | |
556 static int annotation_default_offset; | |
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557 static int type_annotations_offset; |
0 | 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 name(oop method); | |
570 static void set_name(oop method, oop value); | |
571 | |
572 static oop return_type(oop method); | |
573 static void set_return_type(oop method, oop value); | |
574 | |
575 static oop parameter_types(oop method); | |
576 static void set_parameter_types(oop method, oop value); | |
577 | |
578 static oop exception_types(oop method); | |
579 static void set_exception_types(oop method, oop value); | |
580 | |
581 static int slot(oop reflect); | |
582 static void set_slot(oop reflect, int value); | |
583 | |
584 static int modifiers(oop method); | |
585 static void set_modifiers(oop method, int value); | |
586 | |
587 static bool has_signature_field(); | |
588 static oop signature(oop method); | |
589 static void set_signature(oop method, oop value); | |
590 | |
591 static bool has_annotations_field(); | |
592 static oop annotations(oop method); | |
593 static void set_annotations(oop method, oop value); | |
594 | |
595 static bool has_parameter_annotations_field(); | |
596 static oop parameter_annotations(oop method); | |
597 static void set_parameter_annotations(oop method, oop value); | |
598 | |
599 static bool has_annotation_default_field(); | |
600 static oop annotation_default(oop method); | |
601 static void set_annotation_default(oop method, oop value); | |
602 | |
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603 static bool has_type_annotations_field(); |
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604 static oop type_annotations(oop method); |
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605 static void set_type_annotations(oop method, oop value); |
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606 |
0 | 607 // Debugging |
608 friend class JavaClasses; | |
609 }; | |
610 | |
611 | |
612 // Interface to java.lang.reflect.Constructor objects | |
613 | |
614 class java_lang_reflect_Constructor : public java_lang_reflect_AccessibleObject { | |
615 private: | |
616 // Note that to reduce dependencies on the JDK we compute these | |
617 // offsets at run-time. | |
618 static int clazz_offset; | |
619 static int parameterTypes_offset; | |
620 static int exceptionTypes_offset; | |
621 static int slot_offset; | |
622 static int modifiers_offset; | |
623 static int signature_offset; | |
624 static int annotations_offset; | |
625 static int parameter_annotations_offset; | |
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626 static int type_annotations_offset; |
0 | 627 |
628 static void compute_offsets(); | |
629 | |
630 public: | |
631 // Allocation | |
632 static Handle create(TRAPS); | |
633 | |
634 // Accessors | |
635 static oop clazz(oop reflect); | |
636 static void set_clazz(oop reflect, oop value); | |
637 | |
638 static oop parameter_types(oop constructor); | |
639 static void set_parameter_types(oop constructor, oop value); | |
640 | |
641 static oop exception_types(oop constructor); | |
642 static void set_exception_types(oop constructor, oop value); | |
643 | |
644 static int slot(oop reflect); | |
645 static void set_slot(oop reflect, int value); | |
646 | |
647 static int modifiers(oop constructor); | |
648 static void set_modifiers(oop constructor, int value); | |
649 | |
650 static bool has_signature_field(); | |
651 static oop signature(oop constructor); | |
652 static void set_signature(oop constructor, oop value); | |
653 | |
654 static bool has_annotations_field(); | |
655 static oop annotations(oop constructor); | |
656 static void set_annotations(oop constructor, oop value); | |
657 | |
658 static bool has_parameter_annotations_field(); | |
659 static oop parameter_annotations(oop method); | |
660 static void set_parameter_annotations(oop method, oop value); | |
661 | |
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662 static bool has_type_annotations_field(); |
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663 static oop type_annotations(oop constructor); |
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664 static void set_type_annotations(oop constructor, oop value); |
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665 |
0 | 666 // Debugging |
667 friend class JavaClasses; | |
668 }; | |
669 | |
670 | |
671 // Interface to java.lang.reflect.Field objects | |
672 | |
673 class java_lang_reflect_Field : public java_lang_reflect_AccessibleObject { | |
674 private: | |
675 // Note that to reduce dependencies on the JDK we compute these | |
676 // offsets at run-time. | |
677 static int clazz_offset; | |
678 static int name_offset; | |
679 static int type_offset; | |
680 static int slot_offset; | |
681 static int modifiers_offset; | |
682 static int signature_offset; | |
683 static int annotations_offset; | |
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684 static int type_annotations_offset; |
0 | 685 |
686 static void compute_offsets(); | |
687 | |
688 public: | |
689 // Allocation | |
690 static Handle create(TRAPS); | |
691 | |
692 // Accessors | |
693 static oop clazz(oop reflect); | |
694 static void set_clazz(oop reflect, oop value); | |
695 | |
696 static oop name(oop field); | |
697 static void set_name(oop field, oop value); | |
698 | |
699 static oop type(oop field); | |
700 static void set_type(oop field, oop value); | |
701 | |
702 static int slot(oop reflect); | |
703 static void set_slot(oop reflect, int value); | |
704 | |
705 static int modifiers(oop field); | |
706 static void set_modifiers(oop field, int value); | |
707 | |
708 static bool has_signature_field(); | |
709 static oop signature(oop constructor); | |
710 static void set_signature(oop constructor, oop value); | |
711 | |
712 static bool has_annotations_field(); | |
713 static oop annotations(oop constructor); | |
714 static void set_annotations(oop constructor, oop value); | |
715 | |
716 static bool has_parameter_annotations_field(); | |
717 static oop parameter_annotations(oop method); | |
718 static void set_parameter_annotations(oop method, oop value); | |
719 | |
720 static bool has_annotation_default_field(); | |
721 static oop annotation_default(oop method); | |
722 static void set_annotation_default(oop method, oop value); | |
723 | |
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724 static bool has_type_annotations_field(); |
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725 static oop type_annotations(oop field); |
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726 static void set_type_annotations(oop field, oop value); |
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727 |
0 | 728 // Debugging |
729 friend class JavaClasses; | |
730 }; | |
731 | |
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732 class java_lang_reflect_Parameter { |
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733 private: |
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734 // Note that to reduce dependencies on the JDK we compute these |
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735 // offsets at run-time. |
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736 static int name_offset; |
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737 static int modifiers_offset; |
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738 static int index_offset; |
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739 static int executable_offset; |
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740 |
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741 static void compute_offsets(); |
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742 |
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743 public: |
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744 // Allocation |
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745 static Handle create(TRAPS); |
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746 |
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747 // Accessors |
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748 static oop name(oop field); |
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749 static void set_name(oop field, oop value); |
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750 |
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751 static int index(oop reflect); |
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752 static void set_index(oop reflect, int value); |
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753 |
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754 static int modifiers(oop reflect); |
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755 static void set_modifiers(oop reflect, int value); |
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756 |
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757 static oop executable(oop constructor); |
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758 static void set_executable(oop constructor, oop value); |
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759 |
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760 friend class JavaClasses; |
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761 }; |
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762 |
0 | 763 // Interface to sun.reflect.ConstantPool objects |
764 class sun_reflect_ConstantPool { | |
765 private: | |
766 // Note that to reduce dependencies on the JDK we compute these | |
767 // offsets at run-time. | |
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768 static int _oop_offset; |
0 | 769 |
770 static void compute_offsets(); | |
771 | |
772 public: | |
773 // Allocation | |
774 static Handle create(TRAPS); | |
775 | |
776 // Accessors | |
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777 static void set_cp(oop reflect, ConstantPool* value); |
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778 static int oop_offset() { |
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779 return _oop_offset; |
0 | 780 } |
781 | |
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782 static ConstantPool* get_cp(oop reflect); |
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783 |
0 | 784 // Debugging |
785 friend class JavaClasses; | |
786 }; | |
787 | |
788 // Interface to sun.reflect.UnsafeStaticFieldAccessorImpl objects | |
789 class sun_reflect_UnsafeStaticFieldAccessorImpl { | |
790 private: | |
791 static int _base_offset; | |
792 static void compute_offsets(); | |
793 | |
794 public: | |
795 static int base_offset() { | |
796 return _base_offset; | |
797 } | |
798 | |
799 // Debugging | |
800 friend class JavaClasses; | |
801 }; | |
802 | |
803 // Interface to java.lang primitive type boxing objects: | |
804 // - java.lang.Boolean | |
805 // - java.lang.Character | |
806 // - java.lang.Float | |
807 // - java.lang.Double | |
808 // - java.lang.Byte | |
809 // - java.lang.Short | |
810 // - java.lang.Integer | |
811 // - java.lang.Long | |
812 | |
813 // This could be separated out into 8 individual classes. | |
814 | |
815 class java_lang_boxing_object: AllStatic { | |
816 private: | |
817 enum { | |
818 hc_value_offset = 0 | |
819 }; | |
820 static int value_offset; | |
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821 static int long_value_offset; |
0 | 822 |
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823 static oop initialize_and_allocate(BasicType type, TRAPS); |
0 | 824 public: |
825 // Allocation. Returns a boxed value, or NULL for invalid type. | |
826 static oop create(BasicType type, jvalue* value, TRAPS); | |
827 // Accessors. Returns the basic type being boxed, or T_ILLEGAL for invalid oop. | |
828 static BasicType get_value(oop box, jvalue* value); | |
829 static BasicType set_value(oop box, jvalue* value); | |
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830 static BasicType basic_type(oop box); |
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831 static bool is_instance(oop box) { return basic_type(box) != T_ILLEGAL; } |
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832 static bool is_instance(oop box, BasicType type) { return basic_type(box) == type; } |
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833 static void print(oop box, outputStream* st) { jvalue value; print(get_value(box, &value), &value, st); } |
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834 static void print(BasicType type, jvalue* value, outputStream* st); |
0 | 835 |
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836 static int value_offset_in_bytes(BasicType type) { |
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837 return ( type == T_LONG || type == T_DOUBLE ) ? long_value_offset : |
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838 value_offset; |
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839 } |
0 | 840 |
841 // Debugging | |
842 friend class JavaClasses; | |
843 }; | |
844 | |
845 | |
846 | |
847 // Interface to java.lang.ref.Reference objects | |
848 | |
849 class java_lang_ref_Reference: AllStatic { | |
850 public: | |
851 enum { | |
852 hc_referent_offset = 0, | |
853 hc_queue_offset = 1, | |
854 hc_next_offset = 2, | |
855 hc_discovered_offset = 3 // Is not last, see SoftRefs. | |
856 }; | |
857 enum { | |
858 hc_static_lock_offset = 0, | |
859 hc_static_pending_offset = 1 | |
860 }; | |
861 | |
862 static int referent_offset; | |
863 static int queue_offset; | |
864 static int next_offset; | |
865 static int discovered_offset; | |
866 static int static_lock_offset; | |
867 static int static_pending_offset; | |
868 static int number_of_fake_oop_fields; | |
869 | |
870 // Accessors | |
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871 static oop referent(oop ref) { |
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872 return ref->obj_field(referent_offset); |
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873 } |
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874 static void set_referent(oop ref, oop value) { |
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875 ref->obj_field_put(referent_offset, value); |
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876 } |
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877 static void set_referent_raw(oop ref, oop value) { |
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878 ref->obj_field_put_raw(referent_offset, value); |
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879 } |
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880 static HeapWord* referent_addr(oop ref) { |
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881 return ref->obj_field_addr<HeapWord>(referent_offset); |
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882 } |
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883 static oop next(oop ref) { |
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884 return ref->obj_field(next_offset); |
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885 } |
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886 static void set_next(oop ref, oop value) { |
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887 ref->obj_field_put(next_offset, value); |
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888 } |
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889 static void set_next_raw(oop ref, oop value) { |
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890 ref->obj_field_put_raw(next_offset, value); |
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891 } |
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892 static HeapWord* next_addr(oop ref) { |
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893 return ref->obj_field_addr<HeapWord>(next_offset); |
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894 } |
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895 static oop discovered(oop ref) { |
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896 return ref->obj_field(discovered_offset); |
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897 } |
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898 static void set_discovered(oop ref, oop value) { |
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899 ref->obj_field_put(discovered_offset, value); |
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900 } |
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901 static void set_discovered_raw(oop ref, oop value) { |
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902 ref->obj_field_put_raw(discovered_offset, value); |
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903 } |
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904 static HeapWord* discovered_addr(oop ref) { |
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905 return ref->obj_field_addr<HeapWord>(discovered_offset); |
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906 } |
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907 // Accessors for statics |
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908 static oop pending_list_lock(); |
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909 static oop pending_list(); |
0 | 910 |
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911 static HeapWord* pending_list_lock_addr(); |
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912 static HeapWord* pending_list_addr(); |
0 | 913 }; |
914 | |
915 | |
916 // Interface to java.lang.ref.SoftReference objects | |
917 | |
918 class java_lang_ref_SoftReference: public java_lang_ref_Reference { | |
919 public: | |
920 enum { | |
921 // The timestamp is a long field and may need to be adjusted for alignment. | |
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922 hc_timestamp_offset = hc_discovered_offset + 1 |
0 | 923 }; |
924 enum { | |
925 hc_static_clock_offset = 0 | |
926 }; | |
927 | |
928 static int timestamp_offset; | |
929 static int static_clock_offset; | |
930 | |
931 // Accessors | |
932 static jlong timestamp(oop ref); | |
933 | |
934 // Accessors for statics | |
935 static jlong clock(); | |
936 static void set_clock(jlong value); | |
937 }; | |
938 | |
939 | |
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940 // Interface to java.lang.invoke.MethodHandle objects |
710 | 941 |
942 class MethodHandleEntry; | |
943 | |
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944 class java_lang_invoke_MethodHandle: AllStatic { |
710 | 945 friend class JavaClasses; |
946 | |
947 private: | |
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948 static int _type_offset; // the MethodType of this MH |
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949 static int _form_offset; // the LambdaForm of this MH |
710 | 950 |
951 static void compute_offsets(); | |
952 | |
953 public: | |
954 // Accessors | |
955 static oop type(oop mh); | |
956 static void set_type(oop mh, oop mtype); | |
957 | |
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958 static oop form(oop mh); |
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959 static void set_form(oop mh, oop lform); |
710 | 960 |
961 // Testers | |
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962 static bool is_subclass(Klass* klass) { |
6983 | 963 return klass->is_subclass_of(SystemDictionary::MethodHandle_klass()); |
710 | 964 } |
965 static bool is_instance(oop obj) { | |
966 return obj != NULL && is_subclass(obj->klass()); | |
967 } | |
968 | |
969 // Accessors for code generation: | |
970 static int type_offset_in_bytes() { return _type_offset; } | |
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971 static int form_offset_in_bytes() { return _form_offset; } |
710 | 972 }; |
973 | |
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974 // Interface to java.lang.invoke.LambdaForm objects |
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975 // (These are a private interface for managing adapter code generation.) |
3938 | 976 |
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977 class java_lang_invoke_LambdaForm: AllStatic { |
710 | 978 friend class JavaClasses; |
979 | |
980 private: | |
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981 static int _vmentry_offset; // type is MemberName |
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982 |
710 | 983 static void compute_offsets(); |
984 | |
985 public: | |
986 // Accessors | |
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987 static oop vmentry(oop lform); |
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988 static void set_vmentry(oop lform, oop invoker); |
710 | 989 |
990 // Testers | |
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991 static bool is_subclass(Klass* klass) { |
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992 return SystemDictionary::LambdaForm_klass() != NULL && |
6983 | 993 klass->is_subclass_of(SystemDictionary::LambdaForm_klass()); |
710 | 994 } |
995 static bool is_instance(oop obj) { | |
996 return obj != NULL && is_subclass(obj->klass()); | |
997 } | |
998 | |
999 // Accessors for code generation: | |
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1000 static int vmentry_offset_in_bytes() { return _vmentry_offset; } |
710 | 1001 }; |
1002 | |
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1003 |
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1004 // Interface to java.lang.invoke.MemberName objects |
710 | 1005 // (These are a private interface for Java code to query the class hierarchy.) |
1006 | |
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1007 #define MEMBERNAME_INJECTED_FIELDS(macro) \ |
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1008 macro(java_lang_invoke_MemberName, vmloader, object_signature, false) \ |
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1009 macro(java_lang_invoke_MemberName, vmindex, intptr_signature, false) \ |
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1010 macro(java_lang_invoke_MemberName, vmtarget, intptr_signature, false) |
3938 | 1011 |
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1012 class java_lang_invoke_MemberName: AllStatic { |
710 | 1013 friend class JavaClasses; |
1014 | |
1015 private: | |
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1016 // From java.lang.invoke.MemberName: |
710 | 1017 // private Class<?> clazz; // class in which the method is defined |
1018 // private String name; // may be null if not yet materialized | |
1019 // private Object type; // may be null if not yet materialized | |
1020 // private int flags; // modifier bits; see reflect.Modifier | |
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1021 // private intptr vmtarget; // VM-specific target value |
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1022 // private intptr_t vmindex; // member index within class or interface |
710 | 1023 static int _clazz_offset; |
1024 static int _name_offset; | |
1025 static int _type_offset; | |
1026 static int _flags_offset; | |
1027 static int _vmtarget_offset; | |
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1028 static int _vmloader_offset; |
710 | 1029 static int _vmindex_offset; |
1030 | |
1031 static void compute_offsets(); | |
1032 | |
1033 public: | |
1034 // Accessors | |
1035 static oop clazz(oop mname); | |
1036 static void set_clazz(oop mname, oop clazz); | |
1037 | |
1038 static oop type(oop mname); | |
1039 static void set_type(oop mname, oop type); | |
1040 | |
1041 static oop name(oop mname); | |
1042 static void set_name(oop mname, oop name); | |
1043 | |
1044 static int flags(oop mname); | |
1045 static void set_flags(oop mname, int flags); | |
1046 | |
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1047 static Metadata* vmtarget(oop mname); |
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1048 static void set_vmtarget(oop mname, Metadata* target); |
710 | 1049 |
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1050 static intptr_t vmindex(oop mname); |
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1051 static void set_vmindex(oop mname, intptr_t index); |
710 | 1052 |
1053 // Testers | |
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1054 static bool is_subclass(Klass* klass) { |
6983 | 1055 return klass->is_subclass_of(SystemDictionary::MemberName_klass()); |
710 | 1056 } |
1057 static bool is_instance(oop obj) { | |
1058 return obj != NULL && is_subclass(obj->klass()); | |
1059 } | |
1060 | |
1061 // Relevant integer codes (keep these in synch. with MethodHandleNatives.Constants): | |
1062 enum { | |
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1063 MN_IS_METHOD = 0x00010000, // method (not constructor) |
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1064 MN_IS_CONSTRUCTOR = 0x00020000, // constructor |
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1065 MN_IS_FIELD = 0x00040000, // field |
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1066 MN_IS_TYPE = 0x00080000, // nested type |
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1067 MN_CALLER_SENSITIVE = 0x00100000, // @CallerSensitive annotation detected |
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1068 MN_REFERENCE_KIND_SHIFT = 24, // refKind |
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1069 MN_REFERENCE_KIND_MASK = 0x0F000000 >> MN_REFERENCE_KIND_SHIFT, |
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1070 // The SEARCH_* bits are not for MN.flags but for the matchFlags argument of MHN.getMembers: |
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1071 MN_SEARCH_SUPERCLASSES = 0x00100000, // walk super classes |
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1072 MN_SEARCH_INTERFACES = 0x00200000 // walk implemented interfaces |
710 | 1073 }; |
1074 | |
1075 // Accessors for code generation: | |
1076 static int clazz_offset_in_bytes() { return _clazz_offset; } | |
1077 static int type_offset_in_bytes() { return _type_offset; } | |
1078 static int name_offset_in_bytes() { return _name_offset; } | |
1079 static int flags_offset_in_bytes() { return _flags_offset; } | |
1080 static int vmtarget_offset_in_bytes() { return _vmtarget_offset; } | |
1081 static int vmindex_offset_in_bytes() { return _vmindex_offset; } | |
1082 }; | |
1083 | |
1084 | |
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1085 // Interface to java.lang.invoke.MethodType objects |
710 | 1086 |
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1087 class java_lang_invoke_MethodType: AllStatic { |
710 | 1088 friend class JavaClasses; |
1089 | |
1090 private: | |
1091 static int _rtype_offset; | |
1092 static int _ptypes_offset; | |
1093 | |
1094 static void compute_offsets(); | |
1095 | |
1096 public: | |
1097 // Accessors | |
1098 static oop rtype(oop mt); | |
1099 static objArrayOop ptypes(oop mt); | |
1100 | |
1101 static oop ptype(oop mt, int index); | |
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1102 static int ptype_count(oop mt); |
710 | 1103 |
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1104 static int ptype_slot_count(oop mt); // extra counts for long/double |
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1105 static int rtype_slot_count(oop mt); // extra counts for long/double |
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1106 |
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1107 static Symbol* as_signature(oop mt, bool intern_if_not_found, TRAPS); |
710 | 1108 static void print_signature(oop mt, outputStream* st); |
1109 | |
1110 static bool is_instance(oop obj) { | |
1111 return obj != NULL && obj->klass() == SystemDictionary::MethodType_klass(); | |
1112 } | |
1113 | |
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1114 static bool equals(oop mt1, oop mt2); |
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1115 |
710 | 1116 // Accessors for code generation: |
1117 static int rtype_offset_in_bytes() { return _rtype_offset; } | |
1118 static int ptypes_offset_in_bytes() { return _ptypes_offset; } | |
1119 }; | |
1120 | |
1121 | |
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1122 // Interface to java.lang.invoke.CallSite objects |
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1123 |
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1124 class java_lang_invoke_CallSite: AllStatic { |
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1125 friend class JavaClasses; |
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1126 |
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1127 private: |
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1128 static int _target_offset; |
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1129 |
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1130 static void compute_offsets(); |
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1131 |
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1132 public: |
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1133 // Accessors |
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1134 static oop target( oop site) { return site->obj_field( _target_offset); } |
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1135 static void set_target( oop site, oop target) { site->obj_field_put( _target_offset, target); } |
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1136 |
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1137 static volatile oop target_volatile(oop site) { return site->obj_field_volatile( _target_offset); } |
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1138 static void set_target_volatile(oop site, oop target) { site->obj_field_put_volatile(_target_offset, target); } |
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1139 |
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1140 // Testers |
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1141 static bool is_subclass(Klass* klass) { |
6983 | 1142 return klass->is_subclass_of(SystemDictionary::CallSite_klass()); |
1135
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1143 } |
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1144 static bool is_instance(oop obj) { |
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1145 return obj != NULL && is_subclass(obj->klass()); |
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1146 } |
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1147 |
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1148 // Accessors for code generation: |
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1149 static int target_offset_in_bytes() { return _target_offset; } |
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1150 }; |
710 | 1151 |
1152 | |
0 | 1153 // Interface to java.security.AccessControlContext objects |
1154 | |
1155 class java_security_AccessControlContext: AllStatic { | |
1156 private: | |
1157 // Note that for this class the layout changed between JDK1.2 and JDK1.3, | |
1158 // so we compute the offsets at startup rather than hard-wiring them. | |
1159 static int _context_offset; | |
1160 static int _privilegedContext_offset; | |
1161 static int _isPrivileged_offset; | |
1162 | |
1163 static void compute_offsets(); | |
1164 public: | |
1165 static oop create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS); | |
1166 | |
1167 // Debugging/initialization | |
1168 friend class JavaClasses; | |
1169 }; | |
1170 | |
1171 | |
1172 // Interface to java.lang.ClassLoader objects | |
1173 | |
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1174 #define CLASSLOADER_INJECTED_FIELDS(macro) \ |
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1175 macro(java_lang_ClassLoader, loader_data, intptr_signature, false) |
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1176 |
0 | 1177 class java_lang_ClassLoader : AllStatic { |
1178 private: | |
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1179 // The fake offsets are added by the class loader when java.lang.Class is loaded |
0 | 1180 enum { |
1181 hc_parent_offset = 0 | |
1182 }; | |
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1183 static int _loader_data_offset; |
3938 | 1184 static bool offsets_computed; |
0 | 1185 static int parent_offset; |
3938 | 1186 static int parallelCapable_offset; |
1187 | |
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1188 public: |
3938 | 1189 static void compute_offsets(); |
0 | 1190 |
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1191 static ClassLoaderData** loader_data_addr(oop loader); |
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1192 static ClassLoaderData* loader_data(oop loader); |
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1193 |
0 | 1194 static oop parent(oop loader); |
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1195 static bool isAncestor(oop loader, oop cl); |
0 | 1196 |
3938 | 1197 // Support for parallelCapable field |
1198 static bool parallelCapable(oop the_class_mirror); | |
1199 | |
0 | 1200 static bool is_trusted_loader(oop loader); |
1201 | |
1202 // Fix for 4474172 | |
1203 static oop non_reflection_class_loader(oop loader); | |
1204 | |
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1205 // Testers |
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1206 static bool is_subclass(Klass* klass) { |
6983 | 1207 return klass->is_subclass_of(SystemDictionary::ClassLoader_klass()); |
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1208 } |
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1209 static bool is_instance(oop obj) { |
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1210 return obj != NULL && is_subclass(obj->klass()); |
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1211 } |
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1212 |
0 | 1213 // Debugging |
1214 friend class JavaClasses; | |
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1215 friend class ClassFileParser; // access to number_of_fake_fields |
0 | 1216 }; |
1217 | |
1218 | |
1219 // Interface to java.lang.System objects | |
1220 | |
1221 class java_lang_System : AllStatic { | |
1222 private: | |
1223 enum { | |
1224 hc_static_in_offset = 0, | |
1225 hc_static_out_offset = 1, | |
1226 hc_static_err_offset = 2 | |
1227 }; | |
1228 | |
1229 static int static_in_offset; | |
1230 static int static_out_offset; | |
1231 static int static_err_offset; | |
1232 | |
1233 public: | |
1234 static int in_offset_in_bytes(); | |
1235 static int out_offset_in_bytes(); | |
1236 static int err_offset_in_bytes(); | |
1237 | |
1238 // Debugging | |
1239 friend class JavaClasses; | |
1240 }; | |
1241 | |
1242 | |
1243 // Interface to java.lang.StackTraceElement objects | |
1244 | |
1245 class java_lang_StackTraceElement: AllStatic { | |
1246 private: | |
1247 enum { | |
1248 hc_declaringClass_offset = 0, | |
1249 hc_methodName_offset = 1, | |
1250 hc_fileName_offset = 2, | |
1251 hc_lineNumber_offset = 3 | |
1252 }; | |
1253 | |
1254 static int declaringClass_offset; | |
1255 static int methodName_offset; | |
1256 static int fileName_offset; | |
1257 static int lineNumber_offset; | |
1258 | |
1259 public: | |
1260 // Setters | |
1261 static void set_declaringClass(oop element, oop value); | |
1262 static void set_methodName(oop element, oop value); | |
1263 static void set_fileName(oop element, oop value); | |
1264 static void set_lineNumber(oop element, int value); | |
1265 | |
1266 // Create an instance of StackTraceElement | |
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1267 static oop create(Handle mirror, int method, int version, int bci, TRAPS); |
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1268 static oop create(methodHandle method, int bci, TRAPS); |
0 | 1269 |
1270 // Debugging | |
1271 friend class JavaClasses; | |
1272 }; | |
1273 | |
1274 | |
1275 // Interface to java.lang.AssertionStatusDirectives objects | |
1276 | |
1277 class java_lang_AssertionStatusDirectives: AllStatic { | |
1278 private: | |
1279 enum { | |
1280 hc_classes_offset, | |
1281 hc_classEnabled_offset, | |
1282 hc_packages_offset, | |
1283 hc_packageEnabled_offset, | |
1284 hc_deflt_offset | |
1285 }; | |
1286 | |
1287 static int classes_offset; | |
1288 static int classEnabled_offset; | |
1289 static int packages_offset; | |
1290 static int packageEnabled_offset; | |
1291 static int deflt_offset; | |
1292 | |
1293 public: | |
1294 // Setters | |
1295 static void set_classes(oop obj, oop val); | |
1296 static void set_classEnabled(oop obj, oop val); | |
1297 static void set_packages(oop obj, oop val); | |
1298 static void set_packageEnabled(oop obj, oop val); | |
1299 static void set_deflt(oop obj, bool val); | |
1300 // Debugging | |
1301 friend class JavaClasses; | |
1302 }; | |
1303 | |
1304 | |
1305 class java_nio_Buffer: AllStatic { | |
1306 private: | |
1307 static int _limit_offset; | |
1308 | |
1309 public: | |
1310 static int limit_offset(); | |
1311 static void compute_offsets(); | |
1312 }; | |
1313 | |
1314 class java_util_concurrent_locks_AbstractOwnableSynchronizer : AllStatic { | |
1315 private: | |
1316 static int _owner_offset; | |
1317 public: | |
1318 static void initialize(TRAPS); | |
1319 static oop get_owner_threadObj(oop obj); | |
1320 }; | |
1321 | |
3938 | 1322 // Use to declare fields that need to be injected into Java classes |
1323 // for the JVM to use. The name_index and signature_index are | |
1324 // declared in vmSymbols. The may_be_java flag is used to declare | |
1325 // fields that might already exist in Java but should be injected if | |
1326 // they don't. Otherwise the field is unconditionally injected and | |
1327 // the JVM uses the injected one. This is to ensure that name | |
1328 // collisions don't occur. In general may_be_java should be false | |
1329 // unless there's a good reason. | |
1330 | |
1331 class InjectedField { | |
1332 public: | |
1333 const SystemDictionary::WKID klass_id; | |
1334 const vmSymbols::SID name_index; | |
1335 const vmSymbols::SID signature_index; | |
1336 const bool may_be_java; | |
1337 | |
1338 | |
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1339 Klass* klass() const { return SystemDictionary::well_known_klass(klass_id); } |
3938 | 1340 Symbol* name() const { return lookup_symbol(name_index); } |
1341 Symbol* signature() const { return lookup_symbol(signature_index); } | |
1342 | |
1343 int compute_offset(); | |
1344 | |
1345 // Find the Symbol for this index | |
1346 static Symbol* lookup_symbol(int symbol_index) { | |
1347 return vmSymbols::symbol_at((vmSymbols::SID)symbol_index); | |
1348 } | |
1349 }; | |
1350 | |
1351 #define DECLARE_INJECTED_FIELD_ENUM(klass, name, signature, may_be_java) \ | |
1352 klass##_##name##_enum, | |
1353 | |
1354 #define ALL_INJECTED_FIELDS(macro) \ | |
1355 CLASS_INJECTED_FIELDS(macro) \ | |
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1356 CLASSLOADER_INJECTED_FIELDS(macro) \ |
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1357 MEMBERNAME_INJECTED_FIELDS(macro) |
3938 | 1358 |
0 | 1359 // Interface to hard-coded offset checking |
1360 | |
1361 class JavaClasses : AllStatic { | |
1362 private: | |
3938 | 1363 |
1364 static InjectedField _injected_fields[]; | |
1365 | |
0 | 1366 static bool check_offset(const char *klass_name, int offset, const char *field_name, const char* field_sig) PRODUCT_RETURN0; |
1367 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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1368 static bool check_constant(const char *klass_name, int constant, const char *field_name, const char* field_sig) PRODUCT_RETURN0; |
3938 | 1369 |
0 | 1370 public: |
3938 | 1371 enum InjectedFieldID { |
1372 ALL_INJECTED_FIELDS(DECLARE_INJECTED_FIELD_ENUM) | |
1373 MAX_enum | |
1374 }; | |
1375 | |
1376 static int compute_injected_offset(InjectedFieldID id); | |
1377 | |
0 | 1378 static void compute_hard_coded_offsets(); |
1379 static void compute_offsets(); | |
1380 static void check_offsets() PRODUCT_RETURN; | |
3938 | 1381 |
1382 static InjectedField* get_injected(Symbol* class_name, int* field_count); | |
0 | 1383 }; |
1972 | 1384 |
3938 | 1385 #undef DECLARE_INJECTED_FIELD_ENUM |
1386 | |
1972 | 1387 #endif // SHARE_VM_CLASSFILE_JAVACLASSES_HPP |