1 /* 2 * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 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 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 60 static bool initialized; 61 62 static Handle basic_create(int length, TRAPS); 63 64 static void set_offset(oop string, int offset) { 65 assert(initialized, "Must be initialized"); 66 if (offset_offset > 0) { 67 string->int_field_put(offset_offset, offset); 68 } 69 } 70 static void set_count( oop string, int count) { 71 assert(initialized, "Must be initialized"); 72 if (count_offset > 0) { 73 string->int_field_put(count_offset, count); 74 } 75 } 76 77 public: 78 static void compute_offsets(); 79 80 // Instance creation 81 static Handle create_from_unicode(jchar* unicode, int len, TRAPS); 82 static oop create_oop_from_unicode(jchar* unicode, int len, TRAPS); 83 static Handle create_from_str(const char* utf8_str, TRAPS); 84 static oop create_oop_from_str(const char* utf8_str, TRAPS); 85 static Handle create_from_symbol(Symbol* symbol, TRAPS); 86 static Handle create_from_platform_dependent_str(const char* str, TRAPS); 87 static Handle char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS); 88 89 static bool has_offset_field() { 90 assert(initialized, "Must be initialized"); 91 return (offset_offset > 0); 92 } 93 94 static bool has_count_field() { 95 assert(initialized, "Must be initialized"); 96 return (count_offset > 0); 97 } 98 99 static bool has_hash_field() { 100 assert(initialized, "Must be initialized"); 101 return (hash_offset > 0); 102 } 103 104 static int value_offset_in_bytes() { 105 assert(initialized && (value_offset > 0), "Must be initialized"); 106 return value_offset; 107 } 108 static int count_offset_in_bytes() { 109 assert(initialized && (count_offset > 0), "Must be initialized"); 110 return count_offset; 111 } 112 static int offset_offset_in_bytes() { 113 assert(initialized && (offset_offset > 0), "Must be initialized"); 114 return offset_offset; 115 } 116 static int hash_offset_in_bytes() { 117 assert(initialized && (hash_offset > 0), "Must be initialized"); 118 return hash_offset; 119 } 120 121 static void set_value(oop string, typeArrayOop buffer) { 122 assert(initialized && (value_offset > 0), "Must be initialized"); 123 string->obj_field_put(value_offset, (oop)buffer); 124 } 125 static void set_hash(oop string, unsigned int hash) { 126 assert(initialized && (hash_offset > 0), "Must be initialized"); 127 string->int_field_put(hash_offset, hash); 128 } 129 130 // Accessors 131 static typeArrayOop value(oop java_string) { 132 assert(initialized && (value_offset > 0), "Must be initialized"); 133 assert(is_instance(java_string), "must be java_string"); 134 return (typeArrayOop) java_string->obj_field(value_offset); 135 } 136 static unsigned int hash(oop java_string) { 137 assert(initialized && (hash_offset > 0), "Must be initialized"); 138 assert(is_instance(java_string), "must be java_string"); 139 return java_string->int_field(hash_offset); 140 } 141 static int offset(oop java_string) { 142 assert(initialized, "Must be initialized"); 143 assert(is_instance(java_string), "must be java_string"); 144 if (offset_offset > 0) { 145 return java_string->int_field(offset_offset); 146 } else { 147 return 0; 148 } 149 } 150 static int length(oop java_string) { 151 assert(initialized, "Must be initialized"); 152 assert(is_instance(java_string), "must be java_string"); 153 if (count_offset > 0) { 154 return java_string->int_field(count_offset); 155 } else { 156 return ((typeArrayOop)java_string->obj_field(value_offset))->length(); 157 } 158 } 159 static int utf8_length(oop java_string); 160 161 // String converters 162 static char* as_utf8_string(oop java_string); 163 static char* as_utf8_string(oop java_string, char* buf, int buflen); 164 static char* as_utf8_string(oop java_string, int start, int len); 165 static char* as_utf8_string(oop java_string, int start, int len, char* buf, int buflen); 166 static char* as_platform_dependent_str(Handle java_string, TRAPS); 167 static jchar* as_unicode_string(oop java_string, int& length, TRAPS); 168 // produce an ascii string with all other values quoted using \u#### 169 static char* as_quoted_ascii(oop java_string); 170 171 // Compute the hash value for a java.lang.String object which would 172 // contain the characters passed in. 173 // 174 // As the hash value used by the String object itself, in 175 // String.hashCode(). This value is normally calculated in Java code 176 // in the String.hashCode method(), but is precomputed for String 177 // objects in the shared archive file. 178 // hash P(31) from Kernighan & Ritchie 179 // 180 // For this reason, THIS ALGORITHM MUST MATCH String.hashCode(). 181 template <typename T> static unsigned int hash_code(T* s, int len) { 182 unsigned int h = 0; 183 while (len-- > 0) { 184 h = 31*h + (unsigned int) *s; 185 s++; 186 } 187 return h; 188 } 189 static unsigned int hash_code(oop java_string); 190 191 // This is the string hash code used by the StringTable, which may be 192 // the same as String.hashCode or an alternate hash code. 193 static unsigned int hash_string(oop java_string); 194 195 static bool equals(oop java_string, jchar* chars, int len); 196 static bool equals(oop str1, oop str2); 197 198 // Conversion between '.' and '/' formats 199 static Handle externalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '/', '.', THREAD); } 200 static Handle internalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '.', '/', THREAD); } 201 202 // Conversion 203 static Symbol* as_symbol(Handle java_string, TRAPS); 204 static Symbol* as_symbol_or_null(oop java_string); 205 206 // Testers 207 static bool is_instance(oop obj) { 208 return obj != NULL && obj->klass() == SystemDictionary::String_klass(); 209 } 210 211 // Debugging 212 static void print(oop java_string, outputStream* st); 213 friend class JavaClasses; 214 }; 215 216 217 // Interface to java.lang.Class objects 218 219 #define CLASS_INJECTED_FIELDS(macro) \ 220 macro(java_lang_Class, klass, intptr_signature, false) \ 221 macro(java_lang_Class, array_klass, intptr_signature, false) \ 222 macro(java_lang_Class, oop_size, int_signature, false) \ 223 macro(java_lang_Class, static_oop_field_count, int_signature, false) \ 224 macro(java_lang_Class, protection_domain, object_signature, false) \ 225 macro(java_lang_Class, init_lock, object_signature, false) \ 226 macro(java_lang_Class, signers, object_signature, false) 227 228 class java_lang_Class : AllStatic { 229 friend class VMStructs; 230 231 private: 232 // The fake offsets are added by the class loader when java.lang.Class is loaded 233 234 static int _klass_offset; 235 static int _array_klass_offset; 236 237 static int _oop_size_offset; 238 static int _static_oop_field_count_offset; 239 240 static int _protection_domain_offset; 241 static int _init_lock_offset; 242 static int _signers_offset; 243 244 static bool offsets_computed; 245 static int classRedefinedCount_offset; 246 static GrowableArray<Klass*>* _fixup_mirror_list; 247 248 static void set_init_lock(oop java_class, oop init_lock); 249 static void set_protection_domain(oop java_class, oop protection_domain); 250 static void initialize_mirror_fields(KlassHandle k, Handle mirror, Handle protection_domain, TRAPS); 251 public: 252 static void compute_offsets(); 253 254 // Instance creation 255 static void create_mirror(KlassHandle k, Handle protection_domain, TRAPS); 256 static void fixup_mirror(KlassHandle k, TRAPS); 257 static oop create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS); 258 // Conversion 259 static Klass* as_Klass(oop java_class); 260 static void set_klass(oop java_class, Klass* klass); 261 static BasicType as_BasicType(oop java_class, Klass** reference_klass = NULL); 262 static BasicType as_BasicType(oop java_class, KlassHandle* reference_klass) { 263 Klass* refk_oop = NULL; 264 BasicType result = as_BasicType(java_class, &refk_oop); 265 (*reference_klass) = KlassHandle(refk_oop); 266 return result; 267 } 268 static Symbol* as_signature(oop java_class, bool intern_if_not_found, TRAPS); 269 static void print_signature(oop java_class, outputStream *st); 270 // Testing 271 static bool is_instance(oop obj) { 272 return obj != NULL && obj->klass() == SystemDictionary::Class_klass(); 273 } 274 static bool is_primitive(oop java_class); 275 static BasicType primitive_type(oop java_class); 276 static oop primitive_mirror(BasicType t); 277 // JVM_NewArray support 278 static Klass* array_klass(oop java_class); 279 static void set_array_klass(oop java_class, Klass* klass); 280 // compiler support for class operations 281 static int klass_offset_in_bytes() { return _klass_offset; } 282 static int array_klass_offset_in_bytes() { return _array_klass_offset; } 283 // Support for classRedefinedCount field 284 static int classRedefinedCount(oop the_class_mirror); 285 static void set_classRedefinedCount(oop the_class_mirror, int value); 286 287 // Support for embedded per-class oops 288 static oop protection_domain(oop java_class); 289 static oop init_lock(oop java_class); 290 static objArrayOop signers(oop java_class); 291 static void set_signers(oop java_class, objArrayOop signers); 292 293 static int oop_size(oop java_class); 294 static void set_oop_size(oop java_class, int size); 295 static int static_oop_field_count(oop java_class); 296 static void set_static_oop_field_count(oop java_class, int size); 297 298 static GrowableArray<Klass*>* fixup_mirror_list() { 299 return _fixup_mirror_list; 300 } 301 static void set_fixup_mirror_list(GrowableArray<Klass*>* v) { 302 _fixup_mirror_list = v; 303 } 304 // Debugging 305 friend class JavaClasses; 306 friend class InstanceKlass; // verification code accesses offsets 307 friend class ClassFileParser; // access to number_of_fake_fields 308 }; 309 310 // Interface to java.lang.Thread objects 311 312 class java_lang_Thread : AllStatic { 313 private: 314 // Note that for this class the layout changed between JDK1.2 and JDK1.3, 315 // so we compute the offsets at startup rather than hard-wiring them. 316 static int _name_offset; 317 static int _group_offset; 318 static int _contextClassLoader_offset; 319 static int _inheritedAccessControlContext_offset; 320 static int _priority_offset; 321 static int _eetop_offset; 322 static int _daemon_offset; 323 static int _stillborn_offset; 324 static int _stackSize_offset; 325 static int _tid_offset; 326 static int _thread_status_offset; 327 static int _park_blocker_offset; 328 static int _park_event_offset ; 329 330 static void compute_offsets(); 331 332 public: 333 // Instance creation 334 static oop create(); 335 // Returns the JavaThread associated with the thread obj 336 static JavaThread* thread(oop java_thread); 337 // Set JavaThread for instance 338 static void set_thread(oop java_thread, JavaThread* thread); 339 // Name 340 static typeArrayOop name(oop java_thread); 341 static void set_name(oop java_thread, typeArrayOop name); 342 // Priority 343 static ThreadPriority priority(oop java_thread); 344 static void set_priority(oop java_thread, ThreadPriority priority); 345 // Thread group 346 static oop threadGroup(oop java_thread); 347 // Stillborn 348 static bool is_stillborn(oop java_thread); 349 static void set_stillborn(oop java_thread); 350 // Alive (NOTE: this is not really a field, but provides the correct 351 // definition without doing a Java call) 352 static bool is_alive(oop java_thread); 353 // Daemon 354 static bool is_daemon(oop java_thread); 355 static void set_daemon(oop java_thread); 356 // Context ClassLoader 357 static oop context_class_loader(oop java_thread); 358 // Control context 359 static oop inherited_access_control_context(oop java_thread); 360 // Stack size hint 361 static jlong stackSize(oop java_thread); 362 // Thread ID 363 static jlong thread_id(oop java_thread); 364 365 // Blocker object responsible for thread parking 366 static oop park_blocker(oop java_thread); 367 368 // Pointer to type-stable park handler, encoded as jlong. 369 // Should be set when apparently null 370 // For details, see unsafe.cpp Unsafe_Unpark 371 static jlong park_event(oop java_thread); 372 static bool set_park_event(oop java_thread, jlong ptr); 373 374 // Java Thread Status for JVMTI and M&M use. 375 // This thread status info is saved in threadStatus field of 376 // java.lang.Thread java class. 377 enum ThreadStatus { 378 NEW = 0, 379 RUNNABLE = JVMTI_THREAD_STATE_ALIVE + // runnable / running 380 JVMTI_THREAD_STATE_RUNNABLE, 381 SLEEPING = JVMTI_THREAD_STATE_ALIVE + // Thread.sleep() 382 JVMTI_THREAD_STATE_WAITING + 383 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + 384 JVMTI_THREAD_STATE_SLEEPING, 385 IN_OBJECT_WAIT = JVMTI_THREAD_STATE_ALIVE + // Object.wait() 386 JVMTI_THREAD_STATE_WAITING + 387 JVMTI_THREAD_STATE_WAITING_INDEFINITELY + 388 JVMTI_THREAD_STATE_IN_OBJECT_WAIT, 389 IN_OBJECT_WAIT_TIMED = JVMTI_THREAD_STATE_ALIVE + // Object.wait(long) 390 JVMTI_THREAD_STATE_WAITING + 391 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + 392 JVMTI_THREAD_STATE_IN_OBJECT_WAIT, 393 PARKED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park() 394 JVMTI_THREAD_STATE_WAITING + 395 JVMTI_THREAD_STATE_WAITING_INDEFINITELY + 396 JVMTI_THREAD_STATE_PARKED, 397 PARKED_TIMED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park(long) 398 JVMTI_THREAD_STATE_WAITING + 399 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + 400 JVMTI_THREAD_STATE_PARKED, 401 BLOCKED_ON_MONITOR_ENTER = JVMTI_THREAD_STATE_ALIVE + // (re-)entering a synchronization block 402 JVMTI_THREAD_STATE_BLOCKED_ON_MONITOR_ENTER, 403 TERMINATED = JVMTI_THREAD_STATE_TERMINATED 404 }; 405 // Write thread status info to threadStatus field of java.lang.Thread. 406 static void set_thread_status(oop java_thread_oop, ThreadStatus status); 407 // Read thread status info from threadStatus field of java.lang.Thread. 408 static ThreadStatus get_thread_status(oop java_thread_oop); 409 410 static const char* thread_status_name(oop java_thread_oop); 411 412 // Debugging 413 friend class JavaClasses; 414 }; 415 416 // Interface to java.lang.ThreadGroup objects 417 418 class java_lang_ThreadGroup : AllStatic { 419 private: 420 static int _parent_offset; 421 static int _name_offset; 422 static int _threads_offset; 423 static int _groups_offset; 424 static int _maxPriority_offset; 425 static int _destroyed_offset; 426 static int _daemon_offset; 427 static int _vmAllowSuspension_offset; 428 static int _nthreads_offset; 429 static int _ngroups_offset; 430 431 static void compute_offsets(); 432 433 public: 434 // parent ThreadGroup 435 static oop parent(oop java_thread_group); 436 // name 437 static typeArrayOop name(oop java_thread_group); 438 // ("name as oop" accessor is not necessary) 439 // Number of threads in group 440 static int nthreads(oop java_thread_group); 441 // threads 442 static objArrayOop threads(oop java_thread_group); 443 // Number of threads in group 444 static int ngroups(oop java_thread_group); 445 // groups 446 static objArrayOop groups(oop java_thread_group); 447 // maxPriority in group 448 static ThreadPriority maxPriority(oop java_thread_group); 449 // Destroyed 450 static bool is_destroyed(oop java_thread_group); 451 // Daemon 452 static bool is_daemon(oop java_thread_group); 453 // vmAllowSuspension 454 static bool is_vmAllowSuspension(oop java_thread_group); 455 // Debugging 456 friend class JavaClasses; 457 }; 458 459 460 461 // Interface to java.lang.Throwable objects 462 463 class java_lang_Throwable: AllStatic { 464 friend class BacktraceBuilder; 465 466 private: 467 // Offsets 468 enum { 469 hc_backtrace_offset = 0, 470 hc_detailMessage_offset = 1, 471 hc_cause_offset = 2, // New since 1.4 472 hc_stackTrace_offset = 3 // New since 1.4 473 }; 474 enum { 475 hc_static_unassigned_stacktrace_offset = 0 // New since 1.7 476 }; 477 // Trace constants 478 enum { 479 trace_methods_offset = 0, 480 trace_bcis_offset = 1, 481 trace_mirrors_offset = 2, 482 trace_next_offset = 3, 483 trace_size = 4, 484 trace_chunk_size = 32 485 }; 486 487 static int backtrace_offset; 488 static int detailMessage_offset; 489 static int cause_offset; 490 static int stackTrace_offset; 491 static int static_unassigned_stacktrace_offset; 492 493 // Printing 494 static char* print_stack_element_to_buffer(Handle mirror, int method, int version, int bci); 495 // StackTrace (programmatic access, new since 1.4) 496 static void clear_stacktrace(oop throwable); 497 // No stack trace available 498 static const char* no_stack_trace_message(); 499 // Stacktrace (post JDK 1.7.0 to allow immutability protocol to be followed) 500 static void set_stacktrace(oop throwable, oop st_element_array); 501 static oop unassigned_stacktrace(); 502 503 public: 504 // Backtrace 505 static oop backtrace(oop throwable); 506 static void set_backtrace(oop throwable, oop value); 507 // Needed by JVMTI to filter out this internal field. 508 static int get_backtrace_offset() { return backtrace_offset;} 509 static int get_detailMessage_offset() { return detailMessage_offset;} 510 // Message 511 static oop message(oop throwable); 512 static oop message(Handle throwable); 513 static void set_message(oop throwable, oop value); 514 static void print_stack_element(outputStream *st, Handle mirror, int method, 515 int version, int bci); 516 static void print_stack_element(outputStream *st, methodHandle method, int bci); 517 static void print_stack_usage(Handle stream); 518 519 // Allocate space for backtrace (created but stack trace not filled in) 520 static void allocate_backtrace(Handle throwable, TRAPS); 521 // Fill in current stack trace for throwable with preallocated backtrace (no GC) 522 static void fill_in_stack_trace_of_preallocated_backtrace(Handle throwable); 523 // Fill in current stack trace, can cause GC 524 static void fill_in_stack_trace(Handle throwable, methodHandle method, TRAPS); 525 static void fill_in_stack_trace(Handle throwable, methodHandle method = methodHandle()); 526 // Programmatic access to stack trace 527 static oop get_stack_trace_element(oop throwable, int index, TRAPS); 528 static int get_stack_trace_depth(oop throwable, TRAPS); 529 // Printing 530 static void print(oop throwable, outputStream* st); 531 static void print(Handle throwable, outputStream* st); 532 static void print_stack_trace(oop throwable, outputStream* st); 533 // Debugging 534 friend class JavaClasses; 535 }; 536 537 538 // Interface to java.lang.reflect.AccessibleObject objects 539 540 class java_lang_reflect_AccessibleObject: AllStatic { 541 private: 542 // Note that to reduce dependencies on the JDK we compute these 543 // offsets at run-time. 544 static int override_offset; 545 546 static void compute_offsets(); 547 548 public: 549 // Accessors 550 static jboolean override(oop reflect); 551 static void set_override(oop reflect, jboolean value); 552 553 // Debugging 554 friend class JavaClasses; 555 }; 556 557 558 // Interface to java.lang.reflect.Method objects 559 560 class java_lang_reflect_Method : public java_lang_reflect_AccessibleObject { 561 private: 562 // Note that to reduce dependencies on the JDK we compute these 563 // offsets at run-time. 564 static int clazz_offset; 565 static int name_offset; 566 static int returnType_offset; 567 static int parameterTypes_offset; 568 static int exceptionTypes_offset; 569 static int slot_offset; 570 static int modifiers_offset; 571 static int signature_offset; 572 static int annotations_offset; 573 static int parameter_annotations_offset; 574 static int annotation_default_offset; 575 static int type_annotations_offset; 576 577 static void compute_offsets(); 578 579 public: 580 // Allocation 581 static Handle create(TRAPS); 582 583 // Accessors 584 static oop clazz(oop reflect); 585 static void set_clazz(oop reflect, oop value); 586 587 static oop name(oop method); 588 static void set_name(oop method, oop value); 589 590 static oop return_type(oop method); 591 static void set_return_type(oop method, oop value); 592 593 static oop parameter_types(oop method); 594 static void set_parameter_types(oop method, oop value); 595 596 static oop exception_types(oop method); 597 static void set_exception_types(oop method, oop value); 598 599 static int slot(oop reflect); 600 static void set_slot(oop reflect, int value); 601 602 static int modifiers(oop method); 603 static void set_modifiers(oop method, int value); 604 605 static bool has_signature_field(); 606 static oop signature(oop method); 607 static void set_signature(oop method, oop value); 608 609 static bool has_annotations_field(); 610 static oop annotations(oop method); 611 static void set_annotations(oop method, oop value); 612 613 static bool has_parameter_annotations_field(); 614 static oop parameter_annotations(oop method); 615 static void set_parameter_annotations(oop method, oop value); 616 617 static bool has_annotation_default_field(); 618 static oop annotation_default(oop method); 619 static void set_annotation_default(oop method, oop value); 620 621 static bool has_type_annotations_field(); 622 static oop type_annotations(oop method); 623 static void set_type_annotations(oop method, oop value); 624 625 // Debugging 626 friend class JavaClasses; 627 }; 628 629 630 // Interface to java.lang.reflect.Constructor objects 631 632 class java_lang_reflect_Constructor : public java_lang_reflect_AccessibleObject { 633 private: 634 // Note that to reduce dependencies on the JDK we compute these 635 // offsets at run-time. 636 static int clazz_offset; 637 static int parameterTypes_offset; 638 static int exceptionTypes_offset; 639 static int slot_offset; 640 static int modifiers_offset; 641 static int signature_offset; 642 static int annotations_offset; 643 static int parameter_annotations_offset; 644 static int type_annotations_offset; 645 646 static void compute_offsets(); 647 648 public: 649 // Allocation 650 static Handle create(TRAPS); 651 652 // Accessors 653 static oop clazz(oop reflect); 654 static void set_clazz(oop reflect, oop value); 655 656 static oop parameter_types(oop constructor); 657 static void set_parameter_types(oop constructor, oop value); 658 659 static oop exception_types(oop constructor); 660 static void set_exception_types(oop constructor, oop value); 661 662 static int slot(oop reflect); 663 static void set_slot(oop reflect, int value); 664 665 static int modifiers(oop constructor); 666 static void set_modifiers(oop constructor, int value); 667 668 static bool has_signature_field(); 669 static oop signature(oop constructor); 670 static void set_signature(oop constructor, oop value); 671 672 static bool has_annotations_field(); 673 static oop annotations(oop constructor); 674 static void set_annotations(oop constructor, oop value); 675 676 static bool has_parameter_annotations_field(); 677 static oop parameter_annotations(oop method); 678 static void set_parameter_annotations(oop method, oop value); 679 680 static bool has_type_annotations_field(); 681 static oop type_annotations(oop constructor); 682 static void set_type_annotations(oop constructor, oop value); 683 684 // Debugging 685 friend class JavaClasses; 686 }; 687 688 689 // Interface to java.lang.reflect.Field objects 690 691 class java_lang_reflect_Field : public java_lang_reflect_AccessibleObject { 692 private: 693 // Note that to reduce dependencies on the JDK we compute these 694 // offsets at run-time. 695 static int clazz_offset; 696 static int name_offset; 697 static int type_offset; 698 static int slot_offset; 699 static int modifiers_offset; 700 static int signature_offset; 701 static int annotations_offset; 702 static int type_annotations_offset; 703 704 static void compute_offsets(); 705 706 public: 707 // Allocation 708 static Handle create(TRAPS); 709 710 // Accessors 711 static oop clazz(oop reflect); 712 static void set_clazz(oop reflect, oop value); 713 714 static oop name(oop field); 715 static void set_name(oop field, oop value); 716 717 static oop type(oop field); 718 static void set_type(oop field, oop value); 719 720 static int slot(oop reflect); 721 static void set_slot(oop reflect, int value); 722 723 static int modifiers(oop field); 724 static void set_modifiers(oop field, int value); 725 726 static bool has_signature_field(); 727 static oop signature(oop constructor); 728 static void set_signature(oop constructor, oop value); 729 730 static bool has_annotations_field(); 731 static oop annotations(oop constructor); 732 static void set_annotations(oop constructor, oop value); 733 734 static bool has_parameter_annotations_field(); 735 static oop parameter_annotations(oop method); 736 static void set_parameter_annotations(oop method, oop value); 737 738 static bool has_annotation_default_field(); 739 static oop annotation_default(oop method); 740 static void set_annotation_default(oop method, oop value); 741 742 static bool has_type_annotations_field(); 743 static oop type_annotations(oop field); 744 static void set_type_annotations(oop field, oop value); 745 746 // Debugging 747 friend class JavaClasses; 748 }; 749 750 class java_lang_reflect_Parameter { 751 private: 752 // Note that to reduce dependencies on the JDK we compute these 753 // offsets at run-time. 754 static int name_offset; 755 static int modifiers_offset; 756 static int index_offset; 757 static int executable_offset; 758 759 static void compute_offsets(); 760 761 public: 762 // Allocation 763 static Handle create(TRAPS); 764 765 // Accessors 766 static oop name(oop field); 767 static void set_name(oop field, oop value); 768 769 static int index(oop reflect); 770 static void set_index(oop reflect, int value); 771 772 static int modifiers(oop reflect); 773 static void set_modifiers(oop reflect, int value); 774 775 static oop executable(oop constructor); 776 static void set_executable(oop constructor, oop value); 777 778 friend class JavaClasses; 779 }; 780 781 // Interface to sun.reflect.ConstantPool objects 782 class sun_reflect_ConstantPool { 783 private: 784 // Note that to reduce dependencies on the JDK we compute these 785 // offsets at run-time. 786 static int _oop_offset; 787 788 static void compute_offsets(); 789 790 public: 791 // Allocation 792 static Handle create(TRAPS); 793 794 // Accessors 795 static void set_cp(oop reflect, ConstantPool* value); 796 static int oop_offset() { 797 return _oop_offset; 798 } 799 800 static ConstantPool* get_cp(oop reflect); 801 802 // Debugging 803 friend class JavaClasses; 804 }; 805 806 // Interface to sun.reflect.UnsafeStaticFieldAccessorImpl objects 807 class sun_reflect_UnsafeStaticFieldAccessorImpl { 808 private: 809 static int _base_offset; 810 static void compute_offsets(); 811 812 public: 813 static int base_offset() { 814 return _base_offset; 815 } 816 817 // Debugging 818 friend class JavaClasses; 819 }; 820 821 // Interface to java.lang primitive type boxing objects: 822 // - java.lang.Boolean 823 // - java.lang.Character 824 // - java.lang.Float 825 // - java.lang.Double 826 // - java.lang.Byte 827 // - java.lang.Short 828 // - java.lang.Integer 829 // - java.lang.Long 830 831 // This could be separated out into 8 individual classes. 832 833 class java_lang_boxing_object: AllStatic { 834 private: 835 enum { 836 hc_value_offset = 0 837 }; 838 static int value_offset; 839 static int long_value_offset; 840 841 static oop initialize_and_allocate(BasicType type, TRAPS); 842 public: 843 // Allocation. Returns a boxed value, or NULL for invalid type. 844 static oop create(BasicType type, jvalue* value, TRAPS); 845 // Accessors. Returns the basic type being boxed, or T_ILLEGAL for invalid oop. 846 static BasicType get_value(oop box, jvalue* value); 847 static BasicType set_value(oop box, jvalue* value); 848 static BasicType basic_type(oop box); 849 static bool is_instance(oop box) { return basic_type(box) != T_ILLEGAL; } 850 static bool is_instance(oop box, BasicType type) { return basic_type(box) == type; } 851 static void print(oop box, outputStream* st) { jvalue value; print(get_value(box, &value), &value, st); } 852 static void print(BasicType type, jvalue* value, outputStream* st); 853 854 static int value_offset_in_bytes(BasicType type) { 855 return ( type == T_LONG || type == T_DOUBLE ) ? long_value_offset : 856 value_offset; 857 } 858 859 // Debugging 860 friend class JavaClasses; 861 }; 862 863 864 865 // Interface to java.lang.ref.Reference objects 866 867 class java_lang_ref_Reference: AllStatic { 868 public: 869 enum { 870 hc_referent_offset = 0, 871 hc_queue_offset = 1, 872 hc_next_offset = 2, 873 hc_discovered_offset = 3 // Is not last, see SoftRefs. 874 }; 875 enum { 876 hc_static_lock_offset = 0, 877 hc_static_pending_offset = 1 878 }; 879 880 static int referent_offset; 881 static int queue_offset; 882 static int next_offset; 883 static int discovered_offset; 884 static int static_lock_offset; 885 static int static_pending_offset; 886 static int number_of_fake_oop_fields; 887 888 // Accessors 889 static oop referent(oop ref) { 890 return ref->obj_field(referent_offset); 891 } 892 static void set_referent(oop ref, oop value) { 893 ref->obj_field_put(referent_offset, value); 894 } 895 static void set_referent_raw(oop ref, oop value) { 896 ref->obj_field_put_raw(referent_offset, value); 897 } 898 static HeapWord* referent_addr(oop ref) { 899 return ref->obj_field_addr<HeapWord>(referent_offset); 900 } 901 static oop next(oop ref) { 902 return ref->obj_field(next_offset); 903 } 904 static void set_next(oop ref, oop value) { 905 ref->obj_field_put(next_offset, value); 906 } 907 static void set_next_raw(oop ref, oop value) { 908 ref->obj_field_put_raw(next_offset, value); 909 } 910 static HeapWord* next_addr(oop ref) { 911 return ref->obj_field_addr<HeapWord>(next_offset); 912 } 913 static oop discovered(oop ref) { 914 return ref->obj_field(discovered_offset); 915 } 916 static void set_discovered(oop ref, oop value) { 917 ref->obj_field_put(discovered_offset, value); 918 } 919 static void set_discovered_raw(oop ref, oop value) { 920 ref->obj_field_put_raw(discovered_offset, value); 921 } 922 static HeapWord* discovered_addr(oop ref) { 923 return ref->obj_field_addr<HeapWord>(discovered_offset); 924 } 925 // Accessors for statics 926 static oop pending_list_lock(); 927 static oop pending_list(); 928 929 static HeapWord* pending_list_lock_addr(); 930 static HeapWord* pending_list_addr(); 931 }; 932 933 934 // Interface to java.lang.ref.SoftReference objects 935 936 class java_lang_ref_SoftReference: public java_lang_ref_Reference { 937 public: 938 enum { 939 // The timestamp is a long field and may need to be adjusted for alignment. 940 hc_timestamp_offset = hc_discovered_offset + 1 941 }; 942 enum { 943 hc_static_clock_offset = 0 944 }; 945 946 static int timestamp_offset; 947 static int static_clock_offset; 948 949 // Accessors 950 static jlong timestamp(oop ref); 951 952 // Accessors for statics 953 static jlong clock(); 954 static void set_clock(jlong value); 955 }; 956 957 958 // Interface to java.lang.invoke.MethodHandle objects 959 960 class MethodHandleEntry; 961 962 class java_lang_invoke_MethodHandle: AllStatic { 963 friend class JavaClasses; 964 965 private: 966 static int _type_offset; // the MethodType of this MH 967 static int _form_offset; // the LambdaForm of this MH 968 969 static void compute_offsets(); 970 971 public: 972 // Accessors 973 static oop type(oop mh); 974 static void set_type(oop mh, oop mtype); 975 976 static oop form(oop mh); 977 static void set_form(oop mh, oop lform); 978 979 // Testers 980 static bool is_subclass(Klass* klass) { 981 return klass->is_subclass_of(SystemDictionary::MethodHandle_klass()); 982 } 983 static bool is_instance(oop obj) { 984 return obj != NULL && is_subclass(obj->klass()); 985 } 986 987 // Accessors for code generation: 988 static int type_offset_in_bytes() { return _type_offset; } 989 static int form_offset_in_bytes() { return _form_offset; } 990 }; 991 992 // Interface to java.lang.invoke.DirectMethodHandle objects 993 994 class java_lang_invoke_DirectMethodHandle: AllStatic { 995 friend class JavaClasses; 996 997 private: 998 static int _member_offset; // the MemberName of this DMH 999 1000 static void compute_offsets(); 1001 1002 public: 1003 // Accessors 1004 static oop member(oop mh); 1005 1006 // Testers 1007 static bool is_subclass(Klass* klass) { 1008 return klass->is_subclass_of(SystemDictionary::DirectMethodHandle_klass()); 1009 } 1010 static bool is_instance(oop obj) { 1011 return obj != NULL && is_subclass(obj->klass()); 1012 } 1013 1014 // Accessors for code generation: 1015 static int member_offset_in_bytes() { return _member_offset; } 1016 }; 1017 1018 // Interface to java.lang.invoke.LambdaForm objects 1019 // (These are a private interface for managing adapter code generation.) 1020 1021 class java_lang_invoke_LambdaForm: AllStatic { 1022 friend class JavaClasses; 1023 1024 private: 1025 static int _vmentry_offset; // type is MemberName 1026 1027 static void compute_offsets(); 1028 1029 public: 1030 // Accessors 1031 static oop vmentry(oop lform); 1032 static void set_vmentry(oop lform, oop invoker); 1033 1034 // Testers 1035 static bool is_subclass(Klass* klass) { 1036 return SystemDictionary::LambdaForm_klass() != NULL && 1037 klass->is_subclass_of(SystemDictionary::LambdaForm_klass()); 1038 } 1039 static bool is_instance(oop obj) { 1040 return obj != NULL && is_subclass(obj->klass()); 1041 } 1042 1043 // Accessors for code generation: 1044 static int vmentry_offset_in_bytes() { return _vmentry_offset; } 1045 }; 1046 1047 1048 // Interface to java.lang.invoke.MemberName objects 1049 // (These are a private interface for Java code to query the class hierarchy.) 1050 1051 #define MEMBERNAME_INJECTED_FIELDS(macro) \ 1052 macro(java_lang_invoke_MemberName, vmloader, object_signature, false) \ 1053 macro(java_lang_invoke_MemberName, vmindex, intptr_signature, false) \ 1054 macro(java_lang_invoke_MemberName, vmtarget, intptr_signature, false) 1055 1056 class java_lang_invoke_MemberName: AllStatic { 1057 friend class JavaClasses; 1058 1059 private: 1060 // From java.lang.invoke.MemberName: 1061 // private Class<?> clazz; // class in which the method is defined 1062 // private String name; // may be null if not yet materialized 1063 // private Object type; // may be null if not yet materialized 1064 // private int flags; // modifier bits; see reflect.Modifier 1065 // private intptr vmtarget; // VM-specific target value 1066 // private intptr_t vmindex; // member index within class or interface 1067 static int _clazz_offset; 1068 static int _name_offset; 1069 static int _type_offset; 1070 static int _flags_offset; 1071 static int _vmtarget_offset; 1072 static int _vmloader_offset; 1073 static int _vmindex_offset; 1074 1075 static void compute_offsets(); 1076 1077 public: 1078 // Accessors 1079 static oop clazz(oop mname); 1080 static void set_clazz(oop mname, oop clazz); 1081 1082 static oop type(oop mname); 1083 static void set_type(oop mname, oop type); 1084 1085 static oop name(oop mname); 1086 static void set_name(oop mname, oop name); 1087 1088 static int flags(oop mname); 1089 static void set_flags(oop mname, int flags); 1090 1091 static Metadata* vmtarget(oop mname); 1092 static void set_vmtarget(oop mname, Metadata* target); 1093 #if INCLUDE_JVMTI 1094 static void adjust_vmtarget(oop mname, Metadata* target); 1095 #endif // INCLUDE_JVMTI 1096 1097 static intptr_t vmindex(oop mname); 1098 static void set_vmindex(oop mname, intptr_t index); 1099 1100 // Testers 1101 static bool is_subclass(Klass* klass) { 1102 return klass->is_subclass_of(SystemDictionary::MemberName_klass()); 1103 } 1104 static bool is_instance(oop obj) { 1105 return obj != NULL && is_subclass(obj->klass()); 1106 } 1107 1108 // Relevant integer codes (keep these in synch. with MethodHandleNatives.Constants): 1109 enum { 1110 MN_IS_METHOD = 0x00010000, // method (not constructor) 1111 MN_IS_CONSTRUCTOR = 0x00020000, // constructor 1112 MN_IS_FIELD = 0x00040000, // field 1113 MN_IS_TYPE = 0x00080000, // nested type 1114 MN_CALLER_SENSITIVE = 0x00100000, // @CallerSensitive annotation detected 1115 MN_REFERENCE_KIND_SHIFT = 24, // refKind 1116 MN_REFERENCE_KIND_MASK = 0x0F000000 >> MN_REFERENCE_KIND_SHIFT, 1117 // The SEARCH_* bits are not for MN.flags but for the matchFlags argument of MHN.getMembers: 1118 MN_SEARCH_SUPERCLASSES = 0x00100000, // walk super classes 1119 MN_SEARCH_INTERFACES = 0x00200000 // walk implemented interfaces 1120 }; 1121 1122 // Accessors for code generation: 1123 static int clazz_offset_in_bytes() { return _clazz_offset; } 1124 static int type_offset_in_bytes() { return _type_offset; } 1125 static int name_offset_in_bytes() { return _name_offset; } 1126 static int flags_offset_in_bytes() { return _flags_offset; } 1127 static int vmtarget_offset_in_bytes() { return _vmtarget_offset; } 1128 static int vmindex_offset_in_bytes() { return _vmindex_offset; } 1129 }; 1130 1131 1132 // Interface to java.lang.invoke.MethodType objects 1133 1134 class java_lang_invoke_MethodType: AllStatic { 1135 friend class JavaClasses; 1136 1137 private: 1138 static int _rtype_offset; 1139 static int _ptypes_offset; 1140 1141 static void compute_offsets(); 1142 1143 public: 1144 // Accessors 1145 static oop rtype(oop mt); 1146 static objArrayOop ptypes(oop mt); 1147 1148 static oop ptype(oop mt, int index); 1149 static int ptype_count(oop mt); 1150 1151 static int ptype_slot_count(oop mt); // extra counts for long/double 1152 static int rtype_slot_count(oop mt); // extra counts for long/double 1153 1154 static Symbol* as_signature(oop mt, bool intern_if_not_found, TRAPS); 1155 static void print_signature(oop mt, outputStream* st); 1156 1157 static bool is_instance(oop obj) { 1158 return obj != NULL && obj->klass() == SystemDictionary::MethodType_klass(); 1159 } 1160 1161 static bool equals(oop mt1, oop mt2); 1162 1163 // Accessors for code generation: 1164 static int rtype_offset_in_bytes() { return _rtype_offset; } 1165 static int ptypes_offset_in_bytes() { return _ptypes_offset; } 1166 }; 1167 1168 1169 // Interface to java.lang.invoke.CallSite objects 1170 1171 class java_lang_invoke_CallSite: AllStatic { 1172 friend class JavaClasses; 1173 1174 private: 1175 static int _target_offset; 1176 1177 static void compute_offsets(); 1178 1179 public: 1180 // Accessors 1181 static oop target( oop site) { return site->obj_field( _target_offset); } 1182 static void set_target( oop site, oop target) { site->obj_field_put( _target_offset, target); } 1183 1184 static volatile oop target_volatile(oop site) { return site->obj_field_volatile( _target_offset); } 1185 static void set_target_volatile(oop site, oop target) { site->obj_field_put_volatile(_target_offset, target); } 1186 1187 // Testers 1188 static bool is_subclass(Klass* klass) { 1189 return klass->is_subclass_of(SystemDictionary::CallSite_klass()); 1190 } 1191 static bool is_instance(oop obj) { 1192 return obj != NULL && is_subclass(obj->klass()); 1193 } 1194 1195 // Accessors for code generation: 1196 static int target_offset_in_bytes() { return _target_offset; } 1197 }; 1198 1199 1200 // Interface to java.security.AccessControlContext objects 1201 1202 class java_security_AccessControlContext: AllStatic { 1203 private: 1204 // Note that for this class the layout changed between JDK1.2 and JDK1.3, 1205 // so we compute the offsets at startup rather than hard-wiring them. 1206 static int _context_offset; 1207 static int _privilegedContext_offset; 1208 static int _isPrivileged_offset; 1209 static int _isAuthorized_offset; 1210 1211 static void compute_offsets(); 1212 public: 1213 static oop create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS); 1214 1215 static bool is_authorized(Handle context); 1216 1217 // Debugging/initialization 1218 friend class JavaClasses; 1219 }; 1220 1221 1222 // Interface to java.lang.ClassLoader objects 1223 1224 #define CLASSLOADER_INJECTED_FIELDS(macro) \ 1225 macro(java_lang_ClassLoader, loader_data, intptr_signature, false) 1226 1227 class java_lang_ClassLoader : AllStatic { 1228 private: 1229 // The fake offsets are added by the class loader when java.lang.Class is loaded 1230 enum { 1231 hc_parent_offset = 0 1232 }; 1233 static int _loader_data_offset; 1234 static bool offsets_computed; 1235 static int parent_offset; 1236 static int parallelCapable_offset; 1237 1238 public: 1239 static void compute_offsets(); 1240 1241 static ClassLoaderData** loader_data_addr(oop loader); 1242 static ClassLoaderData* loader_data(oop loader); 1243 1244 static oop parent(oop loader); 1245 static bool isAncestor(oop loader, oop cl); 1246 1247 // Support for parallelCapable field 1248 static bool parallelCapable(oop the_class_mirror); 1249 1250 static bool is_trusted_loader(oop loader); 1251 1252 // Fix for 4474172 1253 static oop non_reflection_class_loader(oop loader); 1254 1255 // Testers 1256 static bool is_subclass(Klass* klass) { 1257 return klass->is_subclass_of(SystemDictionary::ClassLoader_klass()); 1258 } 1259 static bool is_instance(oop obj) { 1260 return obj != NULL && is_subclass(obj->klass()); 1261 } 1262 1263 // Debugging 1264 friend class JavaClasses; 1265 friend class ClassFileParser; // access to number_of_fake_fields 1266 }; 1267 1268 1269 // Interface to java.lang.System objects 1270 1271 class java_lang_System : AllStatic { 1272 private: 1273 enum { 1274 hc_static_in_offset = 0, 1275 hc_static_out_offset = 1, 1276 hc_static_err_offset = 2, 1277 hc_static_security_offset = 3 1278 }; 1279 1280 static int static_in_offset; 1281 static int static_out_offset; 1282 static int static_err_offset; 1283 static int static_security_offset; 1284 1285 public: 1286 static int in_offset_in_bytes(); 1287 static int out_offset_in_bytes(); 1288 static int err_offset_in_bytes(); 1289 1290 static bool has_security_manager(); 1291 1292 // Debugging 1293 friend class JavaClasses; 1294 }; 1295 1296 1297 // Interface to java.lang.StackTraceElement objects 1298 1299 class java_lang_StackTraceElement: AllStatic { 1300 private: 1301 enum { 1302 hc_declaringClass_offset = 0, 1303 hc_methodName_offset = 1, 1304 hc_fileName_offset = 2, 1305 hc_lineNumber_offset = 3 1306 }; 1307 1308 static int declaringClass_offset; 1309 static int methodName_offset; 1310 static int fileName_offset; 1311 static int lineNumber_offset; 1312 1313 public: 1314 // Setters 1315 static void set_declaringClass(oop element, oop value); 1316 static void set_methodName(oop element, oop value); 1317 static void set_fileName(oop element, oop value); 1318 static void set_lineNumber(oop element, int value); 1319 1320 // Create an instance of StackTraceElement 1321 static oop create(Handle mirror, int method, int version, int bci, TRAPS); 1322 static oop create(methodHandle method, int bci, TRAPS); 1323 1324 // Debugging 1325 friend class JavaClasses; 1326 }; 1327 1328 1329 // Interface to java.lang.AssertionStatusDirectives objects 1330 1331 class java_lang_AssertionStatusDirectives: AllStatic { 1332 private: 1333 enum { 1334 hc_classes_offset, 1335 hc_classEnabled_offset, 1336 hc_packages_offset, 1337 hc_packageEnabled_offset, 1338 hc_deflt_offset 1339 }; 1340 1341 static int classes_offset; 1342 static int classEnabled_offset; 1343 static int packages_offset; 1344 static int packageEnabled_offset; 1345 static int deflt_offset; 1346 1347 public: 1348 // Setters 1349 static void set_classes(oop obj, oop val); 1350 static void set_classEnabled(oop obj, oop val); 1351 static void set_packages(oop obj, oop val); 1352 static void set_packageEnabled(oop obj, oop val); 1353 static void set_deflt(oop obj, bool val); 1354 // Debugging 1355 friend class JavaClasses; 1356 }; 1357 1358 1359 class java_nio_Buffer: AllStatic { 1360 private: 1361 static int _limit_offset; 1362 1363 public: 1364 static int limit_offset(); 1365 static void compute_offsets(); 1366 }; 1367 1368 class java_util_concurrent_locks_AbstractOwnableSynchronizer : AllStatic { 1369 private: 1370 static int _owner_offset; 1371 public: 1372 static void initialize(TRAPS); 1373 static oop get_owner_threadObj(oop obj); 1374 }; 1375 1376 // Use to declare fields that need to be injected into Java classes 1377 // for the JVM to use. The name_index and signature_index are 1378 // declared in vmSymbols. The may_be_java flag is used to declare 1379 // fields that might already exist in Java but should be injected if 1380 // they don't. Otherwise the field is unconditionally injected and 1381 // the JVM uses the injected one. This is to ensure that name 1382 // collisions don't occur. In general may_be_java should be false 1383 // unless there's a good reason. 1384 1385 class InjectedField { 1386 public: 1387 const SystemDictionary::WKID klass_id; 1388 const vmSymbols::SID name_index; 1389 const vmSymbols::SID signature_index; 1390 const bool may_be_java; 1391 1392 1393 Klass* klass() const { return SystemDictionary::well_known_klass(klass_id); } 1394 Symbol* name() const { return lookup_symbol(name_index); } 1395 Symbol* signature() const { return lookup_symbol(signature_index); } 1396 1397 int compute_offset(); 1398 1399 // Find the Symbol for this index 1400 static Symbol* lookup_symbol(int symbol_index) { 1401 return vmSymbols::symbol_at((vmSymbols::SID)symbol_index); 1402 } 1403 }; 1404 1405 #define DECLARE_INJECTED_FIELD_ENUM(klass, name, signature, may_be_java) \ 1406 klass##_##name##_enum, 1407 1408 #define ALL_INJECTED_FIELDS(macro) \ 1409 CLASS_INJECTED_FIELDS(macro) \ 1410 CLASSLOADER_INJECTED_FIELDS(macro) \ 1411 MEMBERNAME_INJECTED_FIELDS(macro) 1412 1413 // Interface to hard-coded offset checking 1414 1415 class JavaClasses : AllStatic { 1416 private: 1417 1418 static InjectedField _injected_fields[]; 1419 1420 static bool check_offset(const char *klass_name, int offset, const char *field_name, const char* field_sig) PRODUCT_RETURN0; 1421 static bool check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) PRODUCT_RETURN0; 1422 static bool check_constant(const char *klass_name, int constant, const char *field_name, const char* field_sig) PRODUCT_RETURN0; 1423 1424 public: 1425 enum InjectedFieldID { 1426 ALL_INJECTED_FIELDS(DECLARE_INJECTED_FIELD_ENUM) 1427 MAX_enum 1428 }; 1429 1430 static int compute_injected_offset(InjectedFieldID id); 1431 1432 static void compute_hard_coded_offsets(); 1433 static void compute_offsets(); 1434 static void check_offsets() PRODUCT_RETURN; 1435 1436 static InjectedField* get_injected(Symbol* class_name, int* field_count); 1437 }; 1438 1439 #undef DECLARE_INJECTED_FIELD_ENUM 1440 1441 #endif // SHARE_VM_CLASSFILE_JAVACLASSES_HPP