annotate src/share/vm/classfile/javaClasses.hpp @ 3567:30fd0e13dd48

7158800: Improve storage of symbol tables Summary: Use an alternate version of hashing algorithm for symbol string tables and after a certain bucket size to improve performance Reviewed-by: pbk, kamg, dlong, kvn, fparain
author coleenp
date Wed, 20 Jun 2012 09:57:56 -0400
parents 3facbb14e873
children 58ad5f22317e fd81c9aeb9f5
rev   line source
duke@0 1 /*
kvn@3497 2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
duke@0 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@0 4 *
duke@0 5 * This code is free software; you can redistribute it and/or modify it
duke@0 6 * under the terms of the GNU General Public License version 2 only, as
duke@0 7 * published by the Free Software Foundation.
duke@0 8 *
duke@0 9 * This code is distributed in the hope that it will be useful, but WITHOUT
duke@0 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@0 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@0 12 * version 2 for more details (a copy is included in the LICENSE file that
duke@0 13 * accompanied this code).
duke@0 14 *
duke@0 15 * You should have received a copy of the GNU General Public License version
duke@0 16 * 2 along with this work; if not, write to the Free Software Foundation,
duke@0 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@0 18 *
trims@1519 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1519 20 * or visit www.oracle.com if you need additional information or have any
trims@1519 21 * questions.
duke@0 22 *
duke@0 23 */
duke@0 24
stefank@1932 25 #ifndef SHARE_VM_CLASSFILE_JAVACLASSES_HPP
stefank@1932 26 #define SHARE_VM_CLASSFILE_JAVACLASSES_HPP
stefank@1932 27
stefank@1932 28 #include "classfile/systemDictionary.hpp"
stefank@1932 29 #include "jvmtifiles/jvmti.h"
stefank@1932 30 #include "oops/oop.hpp"
stefank@1932 31 #include "runtime/os.hpp"
stefank@1932 32 #include "utilities/utf8.hpp"
stefank@1932 33
duke@0 34 // Interface for manipulating the basic Java classes.
duke@0 35 //
duke@0 36 // All dependencies on layout of actual Java classes should be kept here.
duke@0 37 // If the layout of any of the classes above changes the offsets must be adjusted.
duke@0 38 //
duke@0 39 // For most classes we hardwire the offsets for performance reasons. In certain
duke@0 40 // cases (e.g. java.security.AccessControlContext) we compute the offsets at
duke@0 41 // startup since the layout here differs between JDK1.2 and JDK1.3.
duke@0 42 //
duke@0 43 // Note that fields (static and non-static) are arranged with oops before non-oops
duke@0 44 // on a per class basis. The offsets below have to reflect this ordering.
duke@0 45 //
duke@0 46 // When editing the layouts please update the check_offset verification code
duke@0 47 // correspondingly. The names in the enums must be identical to the actual field
duke@0 48 // names in order for the verification code to work.
duke@0 49
duke@0 50
duke@0 51 // Interface to java.lang.String objects
duke@0 52
duke@0 53 class java_lang_String : AllStatic {
duke@0 54 private:
duke@0 55 static int value_offset;
duke@0 56 static int offset_offset;
duke@0 57 static int count_offset;
duke@0 58 static int hash_offset;
duke@0 59
kvn@3497 60 static bool initialized;
kvn@3497 61
duke@0 62 static Handle basic_create(int length, bool tenured, TRAPS);
duke@0 63 static Handle basic_create_from_unicode(jchar* unicode, int length, bool tenured, TRAPS);
duke@0 64
kvn@3497 65 static void set_value( oop string, typeArrayOop buffer) {
kvn@3497 66 assert(initialized, "Must be initialized");
kvn@3497 67 string->obj_field_put(value_offset, (oop)buffer);
kvn@3497 68 }
kvn@3497 69 static void set_offset(oop string, int offset) {
kvn@3497 70 assert(initialized, "Must be initialized");
kvn@3497 71 if (offset_offset > 0) {
kvn@3497 72 string->int_field_put(offset_offset, offset);
kvn@3497 73 }
kvn@3497 74 }
kvn@3497 75 static void set_count( oop string, int count) {
kvn@3497 76 assert(initialized, "Must be initialized");
kvn@3497 77 if (count_offset > 0) {
kvn@3497 78 string->int_field_put(count_offset, count);
kvn@3497 79 }
kvn@3497 80 }
duke@0 81
duke@0 82 public:
kvn@3497 83 static void compute_offsets();
kvn@3497 84
duke@0 85 // Instance creation
duke@0 86 static Handle create_from_unicode(jchar* unicode, int len, TRAPS);
duke@0 87 static Handle create_tenured_from_unicode(jchar* unicode, int len, TRAPS);
duke@0 88 static oop create_oop_from_unicode(jchar* unicode, int len, TRAPS);
duke@0 89 static Handle create_from_str(const char* utf8_str, TRAPS);
duke@0 90 static oop create_oop_from_str(const char* utf8_str, TRAPS);
coleenp@2118 91 static Handle create_from_symbol(Symbol* symbol, TRAPS);
duke@0 92 static Handle create_from_platform_dependent_str(const char* str, TRAPS);
duke@0 93 static Handle char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS);
duke@0 94
kvn@3497 95 static bool has_offset_field() {
kvn@3497 96 assert(initialized, "Must be initialized");
kvn@3497 97 return (offset_offset > 0);
kvn@3497 98 }
kvn@3497 99
kvn@3497 100 static bool has_count_field() {
kvn@3497 101 assert(initialized, "Must be initialized");
kvn@3497 102 return (count_offset > 0);
kvn@3497 103 }
kvn@3497 104
kvn@3497 105 static bool has_hash_field() {
kvn@3497 106 assert(initialized, "Must be initialized");
kvn@3497 107 return (hash_offset > 0);
kvn@3497 108 }
kvn@3497 109
kvn@3497 110 static int value_offset_in_bytes() {
kvn@3497 111 assert(initialized && (value_offset > 0), "Must be initialized");
kvn@3497 112 return value_offset;
kvn@3497 113 }
kvn@3497 114 static int count_offset_in_bytes() {
kvn@3497 115 assert(initialized && (count_offset > 0), "Must be initialized");
kvn@3497 116 return count_offset;
kvn@3497 117 }
kvn@3497 118 static int offset_offset_in_bytes() {
kvn@3497 119 assert(initialized && (offset_offset > 0), "Must be initialized");
kvn@3497 120 return offset_offset;
kvn@3497 121 }
kvn@3497 122 static int hash_offset_in_bytes() {
kvn@3497 123 assert(initialized && (hash_offset > 0), "Must be initialized");
kvn@3497 124 return hash_offset;
kvn@3497 125 }
duke@0 126
duke@0 127 // Accessors
duke@0 128 static typeArrayOop value(oop java_string) {
kvn@3497 129 assert(initialized && (value_offset > 0), "Must be initialized");
duke@0 130 assert(is_instance(java_string), "must be java_string");
duke@0 131 return (typeArrayOop) java_string->obj_field(value_offset);
duke@0 132 }
duke@0 133 static int offset(oop java_string) {
kvn@3497 134 assert(initialized, "Must be initialized");
duke@0 135 assert(is_instance(java_string), "must be java_string");
kvn@3497 136 if (offset_offset > 0) {
kvn@3497 137 return java_string->int_field(offset_offset);
kvn@3497 138 } else {
kvn@3497 139 return 0;
kvn@3497 140 }
duke@0 141 }
duke@0 142 static int length(oop java_string) {
kvn@3497 143 assert(initialized, "Must be initialized");
duke@0 144 assert(is_instance(java_string), "must be java_string");
kvn@3497 145 if (count_offset > 0) {
kvn@3497 146 return java_string->int_field(count_offset);
kvn@3497 147 } else {
kvn@3497 148 return ((typeArrayOop)java_string->obj_field(value_offset))->length();
kvn@3497 149 }
duke@0 150 }
duke@0 151 static int utf8_length(oop java_string);
duke@0 152
duke@0 153 // String converters
duke@0 154 static char* as_utf8_string(oop java_string);
sla@1949 155 static char* as_utf8_string(oop java_string, char* buf, int buflen);
duke@0 156 static char* as_utf8_string(oop java_string, int start, int len);
coleenp@22 157 static char* as_platform_dependent_str(Handle java_string, TRAPS);
duke@0 158 static jchar* as_unicode_string(oop java_string, int& length);
duke@0 159
never@2330 160 // Compute the hash value for a java.lang.String object which would
coleenp@3567 161 // contain the characters passed in.
never@2330 162 //
coleenp@3567 163 // As the hash value used by the String object itself, in
coleenp@3567 164 // String.hashCode(). This value is normally calculated in Java code
coleenp@3567 165 // in the String.hashCode method(), but is precomputed for String
coleenp@3567 166 // objects in the shared archive file.
coleenp@3567 167 // hash P(31) from Kernighan & Ritchie
never@2330 168 //
coleenp@3567 169 // For this reason, THIS ALGORITHM MUST MATCH String.toHash().
coleenp@3567 170 template <typename T> static unsigned int to_hash(T* s, int len) {
never@2330 171 unsigned int h = 0;
never@2330 172 while (len-- > 0) {
never@2330 173 h = 31*h + (unsigned int) *s;
never@2330 174 s++;
never@2330 175 }
never@2330 176 return h;
never@2330 177 }
coleenp@3567 178 static unsigned int to_hash(oop java_string);
coleenp@3567 179
coleenp@3567 180 // This is the string hash code used by the StringTable, which may be
coleenp@3567 181 // the same as String.toHash or an alternate hash code.
never@2330 182 static unsigned int hash_string(oop java_string);
never@2330 183
duke@0 184 static bool equals(oop java_string, jchar* chars, int len);
duke@0 185
duke@0 186 // Conversion between '.' and '/' formats
duke@0 187 static Handle externalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '/', '.', THREAD); }
duke@0 188 static Handle internalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '.', '/', THREAD); }
duke@0 189
duke@0 190 // Conversion
coleenp@2118 191 static Symbol* as_symbol(Handle java_string, TRAPS);
coleenp@2118 192 static Symbol* as_symbol_or_null(oop java_string);
duke@0 193
duke@0 194 // Testers
duke@0 195 static bool is_instance(oop obj) {
never@1164 196 return obj != NULL && obj->klass() == SystemDictionary::String_klass();
duke@0 197 }
duke@0 198
duke@0 199 // Debugging
duke@0 200 static void print(Handle java_string, outputStream* st);
duke@0 201 friend class JavaClasses;
duke@0 202 };
duke@0 203
duke@0 204
duke@0 205 // Interface to java.lang.Class objects
duke@0 206
never@2870 207 #define CLASS_INJECTED_FIELDS(macro) \
never@2870 208 macro(java_lang_Class, klass, object_signature, false) \
never@2870 209 macro(java_lang_Class, resolved_constructor, object_signature, false) \
never@2870 210 macro(java_lang_Class, array_klass, object_signature, false) \
never@2870 211 macro(java_lang_Class, oop_size, int_signature, false) \
never@2870 212 macro(java_lang_Class, static_oop_field_count, int_signature, false)
never@2870 213
duke@0 214 class java_lang_Class : AllStatic {
never@2870 215 friend class VMStructs;
never@2870 216
duke@0 217 private:
duke@0 218 // The fake offsets are added by the class loader when java.lang.Class is loaded
duke@0 219
never@2870 220 static int _klass_offset;
never@2870 221 static int _resolved_constructor_offset;
never@2870 222 static int _array_klass_offset;
duke@0 223
never@2870 224 static int _oop_size_offset;
never@2870 225 static int _static_oop_field_count_offset;
duke@0 226
duke@0 227 static bool offsets_computed;
duke@0 228 static int classRedefinedCount_offset;
duke@0 229
duke@0 230 public:
never@2870 231 static void compute_offsets();
never@2870 232
duke@0 233 // Instance creation
duke@0 234 static oop create_mirror(KlassHandle k, TRAPS);
never@2288 235 static void fixup_mirror(KlassHandle k, TRAPS);
duke@0 236 static oop create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS);
duke@0 237 // Conversion
duke@0 238 static klassOop as_klassOop(oop java_class);
never@2988 239 static void set_klass(oop java_class, klassOop klass);
jrose@665 240 static BasicType as_BasicType(oop java_class, klassOop* reference_klass = NULL);
jrose@710 241 static BasicType as_BasicType(oop java_class, KlassHandle* reference_klass) {
jrose@710 242 klassOop refk_oop = NULL;
jrose@710 243 BasicType result = as_BasicType(java_class, &refk_oop);
jrose@710 244 (*reference_klass) = KlassHandle(refk_oop);
jrose@710 245 return result;
jrose@710 246 }
coleenp@2118 247 static Symbol* as_signature(oop java_class, bool intern_if_not_found, TRAPS);
jrose@665 248 static void print_signature(oop java_class, outputStream *st);
duke@0 249 // Testing
jrose@132 250 static bool is_instance(oop obj) {
never@1164 251 return obj != NULL && obj->klass() == SystemDictionary::Class_klass();
jrose@132 252 }
duke@0 253 static bool is_primitive(oop java_class);
duke@0 254 static BasicType primitive_type(oop java_class);
duke@0 255 static oop primitive_mirror(BasicType t);
duke@0 256 // JVM_NewInstance support
duke@0 257 static methodOop resolved_constructor(oop java_class);
duke@0 258 static void set_resolved_constructor(oop java_class, methodOop constructor);
duke@0 259 // JVM_NewArray support
duke@0 260 static klassOop array_klass(oop java_class);
duke@0 261 static void set_array_klass(oop java_class, klassOop klass);
duke@0 262 // compiler support for class operations
never@2870 263 static int klass_offset_in_bytes() { return _klass_offset; }
never@2870 264 static int resolved_constructor_offset_in_bytes() { return _resolved_constructor_offset; }
never@2870 265 static int array_klass_offset_in_bytes() { return _array_klass_offset; }
duke@0 266 // Support for classRedefinedCount field
duke@0 267 static int classRedefinedCount(oop the_class_mirror);
duke@0 268 static void set_classRedefinedCount(oop the_class_mirror, int value);
never@2288 269
never@2288 270 static int oop_size(oop java_class);
never@2288 271 static void set_oop_size(oop java_class, int size);
never@2288 272 static int static_oop_field_count(oop java_class);
never@2288 273 static void set_static_oop_field_count(oop java_class, int size);
never@2288 274
duke@0 275 // Debugging
duke@0 276 friend class JavaClasses;
duke@0 277 friend class instanceKlass; // verification code accesses offsets
duke@0 278 friend class ClassFileParser; // access to number_of_fake_fields
duke@0 279 };
duke@0 280
duke@0 281 // Interface to java.lang.Thread objects
duke@0 282
duke@0 283 class java_lang_Thread : AllStatic {
duke@0 284 private:
duke@0 285 // Note that for this class the layout changed between JDK1.2 and JDK1.3,
duke@0 286 // so we compute the offsets at startup rather than hard-wiring them.
duke@0 287 static int _name_offset;
duke@0 288 static int _group_offset;
duke@0 289 static int _contextClassLoader_offset;
duke@0 290 static int _inheritedAccessControlContext_offset;
duke@0 291 static int _priority_offset;
duke@0 292 static int _eetop_offset;
duke@0 293 static int _daemon_offset;
duke@0 294 static int _stillborn_offset;
duke@0 295 static int _stackSize_offset;
duke@0 296 static int _tid_offset;
duke@0 297 static int _thread_status_offset;
duke@0 298 static int _park_blocker_offset;
duke@0 299 static int _park_event_offset ;
duke@0 300
duke@0 301 static void compute_offsets();
duke@0 302
duke@0 303 public:
duke@0 304 // Instance creation
duke@0 305 static oop create();
duke@0 306 // Returns the JavaThread associated with the thread obj
duke@0 307 static JavaThread* thread(oop java_thread);
duke@0 308 // Set JavaThread for instance
duke@0 309 static void set_thread(oop java_thread, JavaThread* thread);
duke@0 310 // Name
duke@0 311 static typeArrayOop name(oop java_thread);
duke@0 312 static void set_name(oop java_thread, typeArrayOop name);
duke@0 313 // Priority
duke@0 314 static ThreadPriority priority(oop java_thread);
duke@0 315 static void set_priority(oop java_thread, ThreadPriority priority);
duke@0 316 // Thread group
duke@0 317 static oop threadGroup(oop java_thread);
duke@0 318 // Stillborn
duke@0 319 static bool is_stillborn(oop java_thread);
duke@0 320 static void set_stillborn(oop java_thread);
duke@0 321 // Alive (NOTE: this is not really a field, but provides the correct
duke@0 322 // definition without doing a Java call)
duke@0 323 static bool is_alive(oop java_thread);
duke@0 324 // Daemon
duke@0 325 static bool is_daemon(oop java_thread);
duke@0 326 static void set_daemon(oop java_thread);
duke@0 327 // Context ClassLoader
duke@0 328 static oop context_class_loader(oop java_thread);
duke@0 329 // Control context
duke@0 330 static oop inherited_access_control_context(oop java_thread);
duke@0 331 // Stack size hint
duke@0 332 static jlong stackSize(oop java_thread);
duke@0 333 // Thread ID
duke@0 334 static jlong thread_id(oop java_thread);
duke@0 335
duke@0 336 // Blocker object responsible for thread parking
duke@0 337 static oop park_blocker(oop java_thread);
duke@0 338
duke@0 339 // Pointer to type-stable park handler, encoded as jlong.
duke@0 340 // Should be set when apparently null
duke@0 341 // For details, see unsafe.cpp Unsafe_Unpark
duke@0 342 static jlong park_event(oop java_thread);
duke@0 343 static bool set_park_event(oop java_thread, jlong ptr);
duke@0 344
duke@0 345 // Java Thread Status for JVMTI and M&M use.
duke@0 346 // This thread status info is saved in threadStatus field of
duke@0 347 // java.lang.Thread java class.
duke@0 348 enum ThreadStatus {
duke@0 349 NEW = 0,
duke@0 350 RUNNABLE = JVMTI_THREAD_STATE_ALIVE + // runnable / running
duke@0 351 JVMTI_THREAD_STATE_RUNNABLE,
duke@0 352 SLEEPING = JVMTI_THREAD_STATE_ALIVE + // Thread.sleep()
duke@0 353 JVMTI_THREAD_STATE_WAITING +
duke@0 354 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT +
duke@0 355 JVMTI_THREAD_STATE_SLEEPING,
duke@0 356 IN_OBJECT_WAIT = JVMTI_THREAD_STATE_ALIVE + // Object.wait()
duke@0 357 JVMTI_THREAD_STATE_WAITING +
duke@0 358 JVMTI_THREAD_STATE_WAITING_INDEFINITELY +
duke@0 359 JVMTI_THREAD_STATE_IN_OBJECT_WAIT,
duke@0 360 IN_OBJECT_WAIT_TIMED = JVMTI_THREAD_STATE_ALIVE + // Object.wait(long)
duke@0 361 JVMTI_THREAD_STATE_WAITING +
duke@0 362 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT +
duke@0 363 JVMTI_THREAD_STATE_IN_OBJECT_WAIT,
duke@0 364 PARKED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park()
duke@0 365 JVMTI_THREAD_STATE_WAITING +
duke@0 366 JVMTI_THREAD_STATE_WAITING_INDEFINITELY +
duke@0 367 JVMTI_THREAD_STATE_PARKED,
duke@0 368 PARKED_TIMED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park(long)
duke@0 369 JVMTI_THREAD_STATE_WAITING +
duke@0 370 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT +
duke@0 371 JVMTI_THREAD_STATE_PARKED,
duke@0 372 BLOCKED_ON_MONITOR_ENTER = JVMTI_THREAD_STATE_ALIVE + // (re-)entering a synchronization block
duke@0 373 JVMTI_THREAD_STATE_BLOCKED_ON_MONITOR_ENTER,
duke@0 374 TERMINATED = JVMTI_THREAD_STATE_TERMINATED
duke@0 375 };
duke@0 376 // Write thread status info to threadStatus field of java.lang.Thread.
duke@0 377 static void set_thread_status(oop java_thread_oop, ThreadStatus status);
duke@0 378 // Read thread status info from threadStatus field of java.lang.Thread.
duke@0 379 static ThreadStatus get_thread_status(oop java_thread_oop);
duke@0 380
duke@0 381 static const char* thread_status_name(oop java_thread_oop);
duke@0 382
duke@0 383 // Debugging
duke@0 384 friend class JavaClasses;
duke@0 385 };
duke@0 386
duke@0 387 // Interface to java.lang.ThreadGroup objects
duke@0 388
duke@0 389 class java_lang_ThreadGroup : AllStatic {
duke@0 390 private:
duke@0 391 static int _parent_offset;
duke@0 392 static int _name_offset;
duke@0 393 static int _threads_offset;
duke@0 394 static int _groups_offset;
duke@0 395 static int _maxPriority_offset;
duke@0 396 static int _destroyed_offset;
duke@0 397 static int _daemon_offset;
duke@0 398 static int _vmAllowSuspension_offset;
duke@0 399 static int _nthreads_offset;
duke@0 400 static int _ngroups_offset;
duke@0 401
duke@0 402 static void compute_offsets();
duke@0 403
duke@0 404 public:
duke@0 405 // parent ThreadGroup
duke@0 406 static oop parent(oop java_thread_group);
duke@0 407 // name
duke@0 408 static typeArrayOop name(oop java_thread_group);
duke@0 409 // ("name as oop" accessor is not necessary)
duke@0 410 // Number of threads in group
duke@0 411 static int nthreads(oop java_thread_group);
duke@0 412 // threads
duke@0 413 static objArrayOop threads(oop java_thread_group);
duke@0 414 // Number of threads in group
duke@0 415 static int ngroups(oop java_thread_group);
duke@0 416 // groups
duke@0 417 static objArrayOop groups(oop java_thread_group);
duke@0 418 // maxPriority in group
duke@0 419 static ThreadPriority maxPriority(oop java_thread_group);
duke@0 420 // Destroyed
duke@0 421 static bool is_destroyed(oop java_thread_group);
duke@0 422 // Daemon
duke@0 423 static bool is_daemon(oop java_thread_group);
duke@0 424 // vmAllowSuspension
duke@0 425 static bool is_vmAllowSuspension(oop java_thread_group);
duke@0 426 // Debugging
duke@0 427 friend class JavaClasses;
duke@0 428 };
duke@0 429
duke@0 430
duke@0 431
duke@0 432 // Interface to java.lang.Throwable objects
duke@0 433
duke@0 434 class java_lang_Throwable: AllStatic {
duke@0 435 friend class BacktraceBuilder;
duke@0 436
duke@0 437 private:
duke@0 438 // Offsets
duke@0 439 enum {
duke@0 440 hc_backtrace_offset = 0,
duke@0 441 hc_detailMessage_offset = 1,
duke@0 442 hc_cause_offset = 2, // New since 1.4
duke@0 443 hc_stackTrace_offset = 3 // New since 1.4
duke@0 444 };
dholmes@2744 445 enum {
dholmes@2744 446 hc_static_unassigned_stacktrace_offset = 0 // New since 1.7
dholmes@2744 447 };
duke@0 448 // Trace constants
duke@0 449 enum {
duke@0 450 trace_methods_offset = 0,
duke@0 451 trace_bcis_offset = 1,
duke@0 452 trace_next_offset = 2,
duke@0 453 trace_size = 3,
duke@0 454 trace_chunk_size = 32
duke@0 455 };
duke@0 456
duke@0 457 static int backtrace_offset;
duke@0 458 static int detailMessage_offset;
duke@0 459 static int cause_offset;
duke@0 460 static int stackTrace_offset;
dholmes@2744 461 static int static_unassigned_stacktrace_offset;
duke@0 462
duke@0 463 // Printing
duke@0 464 static char* print_stack_element_to_buffer(methodOop method, int bci);
duke@0 465 static void print_to_stream(Handle stream, const char* str);
duke@0 466 // StackTrace (programmatic access, new since 1.4)
duke@0 467 static void clear_stacktrace(oop throwable);
duke@0 468 // No stack trace available
duke@0 469 static const char* no_stack_trace_message();
dholmes@2744 470 // Stacktrace (post JDK 1.7.0 to allow immutability protocol to be followed)
dholmes@2744 471 static void set_stacktrace(oop throwable, oop st_element_array);
dholmes@2744 472 static oop unassigned_stacktrace();
duke@0 473
duke@0 474 public:
duke@0 475 // Backtrace
duke@0 476 static oop backtrace(oop throwable);
duke@0 477 static void set_backtrace(oop throwable, oop value);
duke@0 478 // Needed by JVMTI to filter out this internal field.
duke@0 479 static int get_backtrace_offset() { return backtrace_offset;}
duke@0 480 static int get_detailMessage_offset() { return detailMessage_offset;}
duke@0 481 // Message
duke@0 482 static oop message(oop throwable);
duke@0 483 static oop message(Handle throwable);
duke@0 484 static void set_message(oop throwable, oop value);
duke@0 485 // Print stack trace stored in exception by call-back to Java
duke@0 486 // Note: this is no longer used in Merlin, but we still suppport
duke@0 487 // it for compatibility.
duke@0 488 static void print_stack_trace(oop throwable, oop print_stream);
duke@0 489 static void print_stack_element(Handle stream, methodOop method, int bci);
duke@0 490 static void print_stack_element(outputStream *st, methodOop method, int bci);
duke@0 491 static void print_stack_usage(Handle stream);
duke@0 492
duke@0 493 // Allocate space for backtrace (created but stack trace not filled in)
duke@0 494 static void allocate_backtrace(Handle throwable, TRAPS);
duke@0 495 // Fill in current stack trace for throwable with preallocated backtrace (no GC)
duke@0 496 static void fill_in_stack_trace_of_preallocated_backtrace(Handle throwable);
duke@0 497 // Fill in current stack trace, can cause GC
coleenp@2439 498 static void fill_in_stack_trace(Handle throwable, methodHandle method, TRAPS);
coleenp@2439 499 static void fill_in_stack_trace(Handle throwable, methodHandle method = methodHandle());
duke@0 500 // Programmatic access to stack trace
duke@0 501 static oop get_stack_trace_element(oop throwable, int index, TRAPS);
duke@0 502 static int get_stack_trace_depth(oop throwable, TRAPS);
duke@0 503 // Printing
duke@0 504 static void print(oop throwable, outputStream* st);
duke@0 505 static void print(Handle throwable, outputStream* st);
duke@0 506 static void print_stack_trace(oop throwable, outputStream* st);
duke@0 507 // Debugging
duke@0 508 friend class JavaClasses;
duke@0 509 };
duke@0 510
duke@0 511
duke@0 512 // Interface to java.lang.reflect.AccessibleObject objects
duke@0 513
duke@0 514 class java_lang_reflect_AccessibleObject: AllStatic {
duke@0 515 private:
duke@0 516 // Note that to reduce dependencies on the JDK we compute these
duke@0 517 // offsets at run-time.
duke@0 518 static int override_offset;
duke@0 519
duke@0 520 static void compute_offsets();
duke@0 521
duke@0 522 public:
duke@0 523 // Accessors
duke@0 524 static jboolean override(oop reflect);
duke@0 525 static void set_override(oop reflect, jboolean value);
duke@0 526
duke@0 527 // Debugging
duke@0 528 friend class JavaClasses;
duke@0 529 };
duke@0 530
duke@0 531
duke@0 532 // Interface to java.lang.reflect.Method objects
duke@0 533
duke@0 534 class java_lang_reflect_Method : public java_lang_reflect_AccessibleObject {
duke@0 535 private:
duke@0 536 // Note that to reduce dependencies on the JDK we compute these
duke@0 537 // offsets at run-time.
duke@0 538 static int clazz_offset;
duke@0 539 static int name_offset;
duke@0 540 static int returnType_offset;
duke@0 541 static int parameterTypes_offset;
duke@0 542 static int exceptionTypes_offset;
duke@0 543 static int slot_offset;
duke@0 544 static int modifiers_offset;
duke@0 545 static int signature_offset;
duke@0 546 static int annotations_offset;
duke@0 547 static int parameter_annotations_offset;
duke@0 548 static int annotation_default_offset;
duke@0 549
duke@0 550 static void compute_offsets();
duke@0 551
duke@0 552 public:
duke@0 553 // Allocation
duke@0 554 static Handle create(TRAPS);
duke@0 555
duke@0 556 // Accessors
duke@0 557 static oop clazz(oop reflect);
duke@0 558 static void set_clazz(oop reflect, oop value);
duke@0 559
duke@0 560 static oop name(oop method);
duke@0 561 static void set_name(oop method, oop value);
duke@0 562
duke@0 563 static oop return_type(oop method);
duke@0 564 static void set_return_type(oop method, oop value);
duke@0 565
duke@0 566 static oop parameter_types(oop method);
duke@0 567 static void set_parameter_types(oop method, oop value);
duke@0 568
duke@0 569 static oop exception_types(oop method);
duke@0 570 static void set_exception_types(oop method, oop value);
duke@0 571
duke@0 572 static int slot(oop reflect);
duke@0 573 static void set_slot(oop reflect, int value);
duke@0 574
duke@0 575 static int modifiers(oop method);
duke@0 576 static void set_modifiers(oop method, int value);
duke@0 577
duke@0 578 static bool has_signature_field();
duke@0 579 static oop signature(oop method);
duke@0 580 static void set_signature(oop method, oop value);
duke@0 581
duke@0 582 static bool has_annotations_field();
duke@0 583 static oop annotations(oop method);
duke@0 584 static void set_annotations(oop method, oop value);
duke@0 585
duke@0 586 static bool has_parameter_annotations_field();
duke@0 587 static oop parameter_annotations(oop method);
duke@0 588 static void set_parameter_annotations(oop method, oop value);
duke@0 589
duke@0 590 static bool has_annotation_default_field();
duke@0 591 static oop annotation_default(oop method);
duke@0 592 static void set_annotation_default(oop method, oop value);
duke@0 593
duke@0 594 // Debugging
duke@0 595 friend class JavaClasses;
duke@0 596 };
duke@0 597
duke@0 598
duke@0 599 // Interface to java.lang.reflect.Constructor objects
duke@0 600
duke@0 601 class java_lang_reflect_Constructor : public java_lang_reflect_AccessibleObject {
duke@0 602 private:
duke@0 603 // Note that to reduce dependencies on the JDK we compute these
duke@0 604 // offsets at run-time.
duke@0 605 static int clazz_offset;
duke@0 606 static int parameterTypes_offset;
duke@0 607 static int exceptionTypes_offset;
duke@0 608 static int slot_offset;
duke@0 609 static int modifiers_offset;
duke@0 610 static int signature_offset;
duke@0 611 static int annotations_offset;
duke@0 612 static int parameter_annotations_offset;
duke@0 613
duke@0 614 static void compute_offsets();
duke@0 615
duke@0 616 public:
duke@0 617 // Allocation
duke@0 618 static Handle create(TRAPS);
duke@0 619
duke@0 620 // Accessors
duke@0 621 static oop clazz(oop reflect);
duke@0 622 static void set_clazz(oop reflect, oop value);
duke@0 623
duke@0 624 static oop parameter_types(oop constructor);
duke@0 625 static void set_parameter_types(oop constructor, oop value);
duke@0 626
duke@0 627 static oop exception_types(oop constructor);
duke@0 628 static void set_exception_types(oop constructor, oop value);
duke@0 629
duke@0 630 static int slot(oop reflect);
duke@0 631 static void set_slot(oop reflect, int value);
duke@0 632
duke@0 633 static int modifiers(oop constructor);
duke@0 634 static void set_modifiers(oop constructor, int value);
duke@0 635
duke@0 636 static bool has_signature_field();
duke@0 637 static oop signature(oop constructor);
duke@0 638 static void set_signature(oop constructor, oop value);
duke@0 639
duke@0 640 static bool has_annotations_field();
duke@0 641 static oop annotations(oop constructor);
duke@0 642 static void set_annotations(oop constructor, oop value);
duke@0 643
duke@0 644 static bool has_parameter_annotations_field();
duke@0 645 static oop parameter_annotations(oop method);
duke@0 646 static void set_parameter_annotations(oop method, oop value);
duke@0 647
duke@0 648 // Debugging
duke@0 649 friend class JavaClasses;
duke@0 650 };
duke@0 651
duke@0 652
duke@0 653 // Interface to java.lang.reflect.Field objects
duke@0 654
duke@0 655 class java_lang_reflect_Field : public java_lang_reflect_AccessibleObject {
duke@0 656 private:
duke@0 657 // Note that to reduce dependencies on the JDK we compute these
duke@0 658 // offsets at run-time.
duke@0 659 static int clazz_offset;
duke@0 660 static int name_offset;
duke@0 661 static int type_offset;
duke@0 662 static int slot_offset;
duke@0 663 static int modifiers_offset;
duke@0 664 static int signature_offset;
duke@0 665 static int annotations_offset;
duke@0 666
duke@0 667 static void compute_offsets();
duke@0 668
duke@0 669 public:
duke@0 670 // Allocation
duke@0 671 static Handle create(TRAPS);
duke@0 672
duke@0 673 // Accessors
duke@0 674 static oop clazz(oop reflect);
duke@0 675 static void set_clazz(oop reflect, oop value);
duke@0 676
duke@0 677 static oop name(oop field);
duke@0 678 static void set_name(oop field, oop value);
duke@0 679
duke@0 680 static oop type(oop field);
duke@0 681 static void set_type(oop field, oop value);
duke@0 682
duke@0 683 static int slot(oop reflect);
duke@0 684 static void set_slot(oop reflect, int value);
duke@0 685
duke@0 686 static int modifiers(oop field);
duke@0 687 static void set_modifiers(oop field, int value);
duke@0 688
duke@0 689 static bool has_signature_field();
duke@0 690 static oop signature(oop constructor);
duke@0 691 static void set_signature(oop constructor, oop value);
duke@0 692
duke@0 693 static bool has_annotations_field();
duke@0 694 static oop annotations(oop constructor);
duke@0 695 static void set_annotations(oop constructor, oop value);
duke@0 696
duke@0 697 static bool has_parameter_annotations_field();
duke@0 698 static oop parameter_annotations(oop method);
duke@0 699 static void set_parameter_annotations(oop method, oop value);
duke@0 700
duke@0 701 static bool has_annotation_default_field();
duke@0 702 static oop annotation_default(oop method);
duke@0 703 static void set_annotation_default(oop method, oop value);
duke@0 704
duke@0 705 // Debugging
duke@0 706 friend class JavaClasses;
duke@0 707 };
duke@0 708
duke@0 709 // Interface to sun.reflect.ConstantPool objects
duke@0 710 class sun_reflect_ConstantPool {
duke@0 711 private:
duke@0 712 // Note that to reduce dependencies on the JDK we compute these
duke@0 713 // offsets at run-time.
duke@0 714 static int _cp_oop_offset;
duke@0 715
duke@0 716 static void compute_offsets();
duke@0 717
duke@0 718 public:
duke@0 719 // Allocation
duke@0 720 static Handle create(TRAPS);
duke@0 721
duke@0 722 // Accessors
duke@0 723 static oop cp_oop(oop reflect);
duke@0 724 static void set_cp_oop(oop reflect, oop value);
duke@0 725 static int cp_oop_offset() {
duke@0 726 return _cp_oop_offset;
duke@0 727 }
duke@0 728
duke@0 729 // Debugging
duke@0 730 friend class JavaClasses;
duke@0 731 };
duke@0 732
duke@0 733 // Interface to sun.reflect.UnsafeStaticFieldAccessorImpl objects
duke@0 734 class sun_reflect_UnsafeStaticFieldAccessorImpl {
duke@0 735 private:
duke@0 736 static int _base_offset;
duke@0 737 static void compute_offsets();
duke@0 738
duke@0 739 public:
duke@0 740 static int base_offset() {
duke@0 741 return _base_offset;
duke@0 742 }
duke@0 743
duke@0 744 // Debugging
duke@0 745 friend class JavaClasses;
duke@0 746 };
duke@0 747
duke@0 748 // Interface to java.lang primitive type boxing objects:
duke@0 749 // - java.lang.Boolean
duke@0 750 // - java.lang.Character
duke@0 751 // - java.lang.Float
duke@0 752 // - java.lang.Double
duke@0 753 // - java.lang.Byte
duke@0 754 // - java.lang.Short
duke@0 755 // - java.lang.Integer
duke@0 756 // - java.lang.Long
duke@0 757
duke@0 758 // This could be separated out into 8 individual classes.
duke@0 759
duke@0 760 class java_lang_boxing_object: AllStatic {
duke@0 761 private:
duke@0 762 enum {
duke@0 763 hc_value_offset = 0
duke@0 764 };
duke@0 765 static int value_offset;
kvn@165 766 static int long_value_offset;
duke@0 767
jrose@132 768 static oop initialize_and_allocate(BasicType type, TRAPS);
duke@0 769 public:
duke@0 770 // Allocation. Returns a boxed value, or NULL for invalid type.
duke@0 771 static oop create(BasicType type, jvalue* value, TRAPS);
duke@0 772 // Accessors. Returns the basic type being boxed, or T_ILLEGAL for invalid oop.
duke@0 773 static BasicType get_value(oop box, jvalue* value);
duke@0 774 static BasicType set_value(oop box, jvalue* value);
jrose@132 775 static BasicType basic_type(oop box);
jrose@132 776 static bool is_instance(oop box) { return basic_type(box) != T_ILLEGAL; }
jrose@132 777 static bool is_instance(oop box, BasicType type) { return basic_type(box) == type; }
jrose@665 778 static void print(oop box, outputStream* st) { jvalue value; print(get_value(box, &value), &value, st); }
jrose@665 779 static void print(BasicType type, jvalue* value, outputStream* st);
duke@0 780
kvn@165 781 static int value_offset_in_bytes(BasicType type) {
kvn@165 782 return ( type == T_LONG || type == T_DOUBLE ) ? long_value_offset :
kvn@165 783 value_offset;
kvn@165 784 }
duke@0 785
duke@0 786 // Debugging
duke@0 787 friend class JavaClasses;
duke@0 788 };
duke@0 789
duke@0 790
duke@0 791
duke@0 792 // Interface to java.lang.ref.Reference objects
duke@0 793
duke@0 794 class java_lang_ref_Reference: AllStatic {
duke@0 795 public:
duke@0 796 enum {
duke@0 797 hc_referent_offset = 0,
duke@0 798 hc_queue_offset = 1,
duke@0 799 hc_next_offset = 2,
duke@0 800 hc_discovered_offset = 3 // Is not last, see SoftRefs.
duke@0 801 };
duke@0 802 enum {
duke@0 803 hc_static_lock_offset = 0,
duke@0 804 hc_static_pending_offset = 1
duke@0 805 };
duke@0 806
duke@0 807 static int referent_offset;
duke@0 808 static int queue_offset;
duke@0 809 static int next_offset;
duke@0 810 static int discovered_offset;
duke@0 811 static int static_lock_offset;
duke@0 812 static int static_pending_offset;
duke@0 813 static int number_of_fake_oop_fields;
duke@0 814
duke@0 815 // Accessors
coleenp@113 816 static oop referent(oop ref) {
coleenp@113 817 return ref->obj_field(referent_offset);
coleenp@113 818 }
coleenp@113 819 static void set_referent(oop ref, oop value) {
coleenp@113 820 ref->obj_field_put(referent_offset, value);
coleenp@113 821 }
coleenp@113 822 static void set_referent_raw(oop ref, oop value) {
twisti@2864 823 ref->obj_field_put_raw(referent_offset, value);
coleenp@113 824 }
coleenp@113 825 static HeapWord* referent_addr(oop ref) {
coleenp@113 826 return ref->obj_field_addr<HeapWord>(referent_offset);
coleenp@113 827 }
coleenp@113 828 static oop next(oop ref) {
coleenp@113 829 return ref->obj_field(next_offset);
coleenp@113 830 }
coleenp@113 831 static void set_next(oop ref, oop value) {
coleenp@113 832 ref->obj_field_put(next_offset, value);
coleenp@113 833 }
coleenp@113 834 static void set_next_raw(oop ref, oop value) {
twisti@2864 835 ref->obj_field_put_raw(next_offset, value);
coleenp@113 836 }
coleenp@113 837 static HeapWord* next_addr(oop ref) {
coleenp@113 838 return ref->obj_field_addr<HeapWord>(next_offset);
coleenp@113 839 }
coleenp@113 840 static oop discovered(oop ref) {
coleenp@113 841 return ref->obj_field(discovered_offset);
coleenp@113 842 }
coleenp@113 843 static void set_discovered(oop ref, oop value) {
coleenp@113 844 ref->obj_field_put(discovered_offset, value);
coleenp@113 845 }
coleenp@113 846 static void set_discovered_raw(oop ref, oop value) {
twisti@2864 847 ref->obj_field_put_raw(discovered_offset, value);
coleenp@113 848 }
coleenp@113 849 static HeapWord* discovered_addr(oop ref) {
coleenp@113 850 return ref->obj_field_addr<HeapWord>(discovered_offset);
coleenp@113 851 }
coleenp@113 852 // Accessors for statics
coleenp@113 853 static oop pending_list_lock();
coleenp@113 854 static oop pending_list();
duke@0 855
coleenp@113 856 static HeapWord* pending_list_addr();
duke@0 857 };
duke@0 858
duke@0 859
duke@0 860 // Interface to java.lang.ref.SoftReference objects
duke@0 861
duke@0 862 class java_lang_ref_SoftReference: public java_lang_ref_Reference {
duke@0 863 public:
duke@0 864 enum {
duke@0 865 // The timestamp is a long field and may need to be adjusted for alignment.
kvn@165 866 hc_timestamp_offset = hc_discovered_offset + 1
duke@0 867 };
duke@0 868 enum {
duke@0 869 hc_static_clock_offset = 0
duke@0 870 };
duke@0 871
duke@0 872 static int timestamp_offset;
duke@0 873 static int static_clock_offset;
duke@0 874
duke@0 875 // Accessors
duke@0 876 static jlong timestamp(oop ref);
duke@0 877
duke@0 878 // Accessors for statics
duke@0 879 static jlong clock();
duke@0 880 static void set_clock(jlong value);
duke@0 881 };
duke@0 882
duke@0 883
jrose@2269 884 // Interface to java.lang.invoke.MethodHandle objects
jrose@710 885
never@2870 886 #define METHODHANDLE_INJECTED_FIELDS(macro) \
never@2870 887 macro(java_lang_invoke_MethodHandle, vmentry, intptr_signature, false) \
never@2870 888 macro(java_lang_invoke_MethodHandle, vmtarget, object_signature, true)
never@2870 889
jrose@710 890 class MethodHandleEntry;
jrose@710 891
jrose@2269 892 class java_lang_invoke_MethodHandle: AllStatic {
jrose@710 893 friend class JavaClasses;
jrose@710 894
jrose@710 895 private:
never@2870 896 static int _vmentry_offset; // assembly code trampoline for MH
never@2870 897 static int _vmtarget_offset; // class-specific target reference
jrose@710 898 static int _type_offset; // the MethodType of this MH
jrose@710 899
jrose@710 900 static void compute_offsets();
jrose@710 901
jrose@710 902 public:
jrose@710 903 // Accessors
jrose@710 904 static oop type(oop mh);
jrose@710 905 static void set_type(oop mh, oop mtype);
jrose@710 906
jrose@710 907 static oop vmtarget(oop mh);
jrose@710 908 static void set_vmtarget(oop mh, oop target);
jrose@710 909
jrose@710 910 static MethodHandleEntry* vmentry(oop mh);
jrose@710 911 static void set_vmentry(oop mh, MethodHandleEntry* data);
jrose@710 912
jrose@710 913 static int vmslots(oop mh);
jrose@710 914
jrose@710 915 // Testers
jrose@710 916 static bool is_subclass(klassOop klass) {
jrose@710 917 return Klass::cast(klass)->is_subclass_of(SystemDictionary::MethodHandle_klass());
jrose@710 918 }
jrose@710 919 static bool is_instance(oop obj) {
jrose@710 920 return obj != NULL && is_subclass(obj->klass());
jrose@710 921 }
jrose@710 922
jrose@710 923 // Accessors for code generation:
jrose@710 924 static int type_offset_in_bytes() { return _type_offset; }
jrose@710 925 static int vmtarget_offset_in_bytes() { return _vmtarget_offset; }
jrose@710 926 static int vmentry_offset_in_bytes() { return _vmentry_offset; }
jrose@710 927 };
jrose@710 928
never@2870 929 #define DIRECTMETHODHANDLE_INJECTED_FIELDS(macro) \
never@2870 930 macro(java_lang_invoke_DirectMethodHandle, vmindex, int_signature, true)
never@2870 931
jrose@2269 932 class java_lang_invoke_DirectMethodHandle: public java_lang_invoke_MethodHandle {
jrose@710 933 friend class JavaClasses;
jrose@710 934
jrose@710 935 private:
jrose@710 936 static int _vmindex_offset; // negative or vtable idx or itable idx
jrose@710 937 static void compute_offsets();
jrose@710 938
jrose@710 939 public:
jrose@710 940 // Accessors
jrose@710 941 static int vmindex(oop mh);
jrose@710 942 static void set_vmindex(oop mh, int index);
jrose@710 943
jrose@710 944 // Testers
jrose@710 945 static bool is_subclass(klassOop klass) {
jrose@710 946 return Klass::cast(klass)->is_subclass_of(SystemDictionary::DirectMethodHandle_klass());
jrose@710 947 }
jrose@710 948 static bool is_instance(oop obj) {
jrose@710 949 return obj != NULL && is_subclass(obj->klass());
jrose@710 950 }
jrose@710 951
jrose@710 952 // Accessors for code generation:
jrose@710 953 static int vmindex_offset_in_bytes() { return _vmindex_offset; }
jrose@710 954 };
jrose@710 955
jrose@2269 956 class java_lang_invoke_BoundMethodHandle: public java_lang_invoke_MethodHandle {
jrose@710 957 friend class JavaClasses;
jrose@710 958
jrose@710 959 private:
jrose@710 960 static int _argument_offset; // argument value bound into this MH
jrose@710 961 static int _vmargslot_offset; // relevant argument slot (<= vmslots)
jrose@710 962 static void compute_offsets();
jrose@710 963
jrose@710 964 public:
jrose@710 965 static oop argument(oop mh);
jrose@710 966 static void set_argument(oop mh, oop ref);
jrose@710 967
jrose@710 968 static jint vmargslot(oop mh);
jrose@710 969 static void set_vmargslot(oop mh, jint slot);
jrose@710 970
jrose@710 971 // Testers
jrose@710 972 static bool is_subclass(klassOop klass) {
jrose@710 973 return Klass::cast(klass)->is_subclass_of(SystemDictionary::BoundMethodHandle_klass());
jrose@710 974 }
jrose@710 975 static bool is_instance(oop obj) {
jrose@710 976 return obj != NULL && is_subclass(obj->klass());
jrose@710 977 }
jrose@710 978
jrose@710 979 static int argument_offset_in_bytes() { return _argument_offset; }
jrose@710 980 static int vmargslot_offset_in_bytes() { return _vmargslot_offset; }
jrose@710 981 };
jrose@710 982
jrose@2269 983 class java_lang_invoke_AdapterMethodHandle: public java_lang_invoke_BoundMethodHandle {
jrose@710 984 friend class JavaClasses;
jrose@710 985
jrose@710 986 private:
jrose@710 987 static int _conversion_offset; // type of conversion to apply
jrose@710 988 static void compute_offsets();
jrose@710 989
jrose@710 990 public:
jrose@710 991 static int conversion(oop mh);
jrose@710 992 static void set_conversion(oop mh, int conv);
jrose@710 993
jrose@710 994 // Testers
jrose@710 995 static bool is_subclass(klassOop klass) {
jrose@710 996 return Klass::cast(klass)->is_subclass_of(SystemDictionary::AdapterMethodHandle_klass());
jrose@710 997 }
jrose@710 998 static bool is_instance(oop obj) {
jrose@710 999 return obj != NULL && is_subclass(obj->klass());
jrose@710 1000 }
jrose@710 1001
jrose@710 1002 // Relevant integer codes (keep these in synch. with MethodHandleNatives.Constants):
jrose@710 1003 enum {
jrose@710 1004 OP_RETYPE_ONLY = 0x0, // no argument changes; straight retype
jrose@1056 1005 OP_RETYPE_RAW = 0x1, // straight retype, trusted (void->int, Object->T)
jrose@1056 1006 OP_CHECK_CAST = 0x2, // ref-to-ref conversion; requires a Class argument
jrose@1056 1007 OP_PRIM_TO_PRIM = 0x3, // converts from one primitive to another
jrose@1056 1008 OP_REF_TO_PRIM = 0x4, // unboxes a wrapper to produce a primitive
never@2530 1009 OP_PRIM_TO_REF = 0x5, // boxes a primitive into a wrapper
jrose@1056 1010 OP_SWAP_ARGS = 0x6, // swap arguments (vminfo is 2nd arg)
jrose@1056 1011 OP_ROT_ARGS = 0x7, // rotate arguments (vminfo is displaced arg)
jrose@1056 1012 OP_DUP_ARGS = 0x8, // duplicates one or more arguments (at TOS)
jrose@1056 1013 OP_DROP_ARGS = 0x9, // remove one or more argument slots
never@2530 1014 OP_COLLECT_ARGS = 0xA, // combine arguments using an auxiliary function
jrose@1056 1015 OP_SPREAD_ARGS = 0xB, // expand in place a varargs array (of known size)
never@2530 1016 OP_FOLD_ARGS = 0xC, // combine but do not remove arguments; prepend result
never@2530 1017 //OP_UNUSED_13 = 0xD, // unused code, perhaps for reified argument lists
jrose@1056 1018 CONV_OP_LIMIT = 0xE, // limit of CONV_OP enumeration
jrose@710 1019
jrose@710 1020 CONV_OP_MASK = 0xF00, // this nybble contains the conversion op field
never@2530 1021 CONV_TYPE_MASK = 0x0F, // fits T_ADDRESS and below
jrose@710 1022 CONV_VMINFO_MASK = 0x0FF, // LSB is reserved for JVM use
jrose@710 1023 CONV_VMINFO_SHIFT = 0, // position of bits in CONV_VMINFO_MASK
jrose@710 1024 CONV_OP_SHIFT = 8, // position of bits in CONV_OP_MASK
jrose@710 1025 CONV_DEST_TYPE_SHIFT = 12, // byte 2 has the adapter BasicType (if needed)
jrose@710 1026 CONV_SRC_TYPE_SHIFT = 16, // byte 2 has the source BasicType (if needed)
jrose@710 1027 CONV_STACK_MOVE_SHIFT = 20, // high 12 bits give signed SP change
jrose@710 1028 CONV_STACK_MOVE_MASK = (1 << (32 - CONV_STACK_MOVE_SHIFT)) - 1
jrose@710 1029 };
jrose@710 1030
jrose@710 1031 static int conversion_offset_in_bytes() { return _conversion_offset; }
jrose@710 1032 };
jrose@710 1033
jrose@710 1034
never@2838 1035 // A simple class that maintains an invocation count
never@2838 1036 class java_lang_invoke_CountingMethodHandle: public java_lang_invoke_MethodHandle {
never@2838 1037 friend class JavaClasses;
never@2838 1038
never@2838 1039 private:
never@2838 1040 static int _vmcount_offset;
never@2838 1041 static void compute_offsets();
never@2838 1042
never@2838 1043 public:
never@2838 1044 // Accessors
never@2838 1045 static int vmcount(oop mh);
never@2838 1046 static void set_vmcount(oop mh, int count);
never@2838 1047
never@2838 1048 // Testers
never@2838 1049 static bool is_subclass(klassOop klass) {
never@2838 1050 return SystemDictionary::CountingMethodHandle_klass() != NULL &&
never@2838 1051 Klass::cast(klass)->is_subclass_of(SystemDictionary::CountingMethodHandle_klass());
never@2838 1052 }
never@2838 1053 static bool is_instance(oop obj) {
never@2838 1054 return obj != NULL && is_subclass(obj->klass());
never@2838 1055 }
never@2838 1056
never@2838 1057 // Accessors for code generation:
never@2838 1058 static int vmcount_offset_in_bytes() { return _vmcount_offset; }
never@2838 1059 };
never@2838 1060
never@2838 1061
never@2838 1062
jrose@2269 1063 // Interface to java.lang.invoke.MemberName objects
jrose@710 1064 // (These are a private interface for Java code to query the class hierarchy.)
jrose@710 1065
never@2870 1066 #define MEMBERNAME_INJECTED_FIELDS(macro) \
never@2870 1067 macro(java_lang_invoke_MemberName, vmtarget, object_signature, true)
never@2870 1068
jrose@2269 1069 class java_lang_invoke_MemberName: AllStatic {
jrose@710 1070 friend class JavaClasses;
jrose@710 1071
jrose@710 1072 private:
jrose@2269 1073 // From java.lang.invoke.MemberName:
jrose@710 1074 // private Class<?> clazz; // class in which the method is defined
jrose@710 1075 // private String name; // may be null if not yet materialized
jrose@710 1076 // private Object type; // may be null if not yet materialized
jrose@710 1077 // private int flags; // modifier bits; see reflect.Modifier
jrose@710 1078 // private Object vmtarget; // VM-specific target value
jrose@710 1079 // private int vmindex; // method index within class or interface
jrose@710 1080 static int _clazz_offset;
jrose@710 1081 static int _name_offset;
jrose@710 1082 static int _type_offset;
jrose@710 1083 static int _flags_offset;
jrose@710 1084 static int _vmtarget_offset;
jrose@710 1085 static int _vmindex_offset;
jrose@710 1086
jrose@710 1087 static void compute_offsets();
jrose@710 1088
jrose@710 1089 public:
jrose@710 1090 // Accessors
jrose@710 1091 static oop clazz(oop mname);
jrose@710 1092 static void set_clazz(oop mname, oop clazz);
jrose@710 1093
jrose@710 1094 static oop type(oop mname);
jrose@710 1095 static void set_type(oop mname, oop type);
jrose@710 1096
jrose@710 1097 static oop name(oop mname);
jrose@710 1098 static void set_name(oop mname, oop name);
jrose@710 1099
jrose@710 1100 static int flags(oop mname);
jrose@710 1101 static void set_flags(oop mname, int flags);
jrose@710 1102
jrose@710 1103 static int modifiers(oop mname) { return (u2) flags(mname); }
jrose@710 1104 static void set_modifiers(oop mname, int mods)
jrose@710 1105 { set_flags(mname, (flags(mname) &~ (u2)-1) | (u2)mods); }
jrose@710 1106
jrose@710 1107 static oop vmtarget(oop mname);
jrose@710 1108 static void set_vmtarget(oop mname, oop target);
jrose@710 1109
jrose@710 1110 static int vmindex(oop mname);
jrose@710 1111 static void set_vmindex(oop mname, int index);
jrose@710 1112
jrose@710 1113 // Testers
jrose@710 1114 static bool is_subclass(klassOop klass) {
jrose@710 1115 return Klass::cast(klass)->is_subclass_of(SystemDictionary::MemberName_klass());
jrose@710 1116 }
jrose@710 1117 static bool is_instance(oop obj) {
jrose@710 1118 return obj != NULL && is_subclass(obj->klass());
jrose@710 1119 }
jrose@710 1120
jrose@710 1121 // Relevant integer codes (keep these in synch. with MethodHandleNatives.Constants):
jrose@710 1122 enum {
jrose@710 1123 MN_IS_METHOD = 0x00010000, // method (not constructor)
jrose@710 1124 MN_IS_CONSTRUCTOR = 0x00020000, // constructor
jrose@710 1125 MN_IS_FIELD = 0x00040000, // field
jrose@710 1126 MN_IS_TYPE = 0x00080000, // nested type
jrose@710 1127 MN_SEARCH_SUPERCLASSES = 0x00100000, // for MHN.getMembers
jrose@710 1128 MN_SEARCH_INTERFACES = 0x00200000, // for MHN.getMembers
jrose@710 1129 VM_INDEX_UNINITIALIZED = -99
jrose@710 1130 };
jrose@710 1131
jrose@710 1132 // Accessors for code generation:
jrose@710 1133 static int clazz_offset_in_bytes() { return _clazz_offset; }
jrose@710 1134 static int type_offset_in_bytes() { return _type_offset; }
jrose@710 1135 static int name_offset_in_bytes() { return _name_offset; }
jrose@710 1136 static int flags_offset_in_bytes() { return _flags_offset; }
jrose@710 1137 static int vmtarget_offset_in_bytes() { return _vmtarget_offset; }
jrose@710 1138 static int vmindex_offset_in_bytes() { return _vmindex_offset; }
jrose@710 1139 };
jrose@710 1140
jrose@710 1141
jrose@2269 1142 // Interface to java.lang.invoke.MethodType objects
jrose@710 1143
jrose@2269 1144 class java_lang_invoke_MethodType: AllStatic {
jrose@710 1145 friend class JavaClasses;
jrose@710 1146
jrose@710 1147 private:
jrose@710 1148 static int _rtype_offset;
jrose@710 1149 static int _ptypes_offset;
jrose@710 1150 static int _form_offset;
jrose@710 1151
jrose@710 1152 static void compute_offsets();
jrose@710 1153
jrose@710 1154 public:
jrose@710 1155 // Accessors
jrose@710 1156 static oop rtype(oop mt);
jrose@710 1157 static objArrayOop ptypes(oop mt);
jrose@710 1158 static oop form(oop mt);
jrose@710 1159
jrose@710 1160 static oop ptype(oop mt, int index);
twisti@1155 1161 static int ptype_count(oop mt);
jrose@710 1162
coleenp@2118 1163 static Symbol* as_signature(oop mt, bool intern_if_not_found, TRAPS);
jrose@710 1164 static void print_signature(oop mt, outputStream* st);
jrose@710 1165
jrose@710 1166 static bool is_instance(oop obj) {
jrose@710 1167 return obj != NULL && obj->klass() == SystemDictionary::MethodType_klass();
jrose@710 1168 }
jrose@710 1169
jrose@2631 1170 static bool equals(oop mt1, oop mt2);
jrose@2631 1171
jrose@710 1172 // Accessors for code generation:
jrose@710 1173 static int rtype_offset_in_bytes() { return _rtype_offset; }
jrose@710 1174 static int ptypes_offset_in_bytes() { return _ptypes_offset; }
jrose@710 1175 static int form_offset_in_bytes() { return _form_offset; }
jrose@710 1176 };
jrose@710 1177
never@2870 1178 #define METHODTYPEFORM_INJECTED_FIELDS(macro) \
never@2870 1179 macro(java_lang_invoke_MethodTypeForm, vmslots, int_signature, true) \
never@2870 1180 macro(java_lang_invoke_MethodTypeForm, vmlayout, object_signature, true)
never@2870 1181
jrose@2269 1182 class java_lang_invoke_MethodTypeForm: AllStatic {
jrose@710 1183 friend class JavaClasses;
jrose@710 1184
jrose@710 1185 private:
jrose@710 1186 static int _vmslots_offset; // number of argument slots needed
never@2530 1187 static int _vmlayout_offset; // object describing internal calling sequence
jrose@710 1188 static int _erasedType_offset; // erasedType = canonical MethodType
jrose@1765 1189 static int _genericInvoker_offset; // genericInvoker = adapter for invokeGeneric
jrose@710 1190
jrose@710 1191 static void compute_offsets();
jrose@710 1192
jrose@710 1193 public:
jrose@710 1194 // Accessors
jrose@710 1195 static int vmslots(oop mtform);
never@2870 1196 static void set_vmslots(oop mtform, int vmslots);
never@2870 1197
jrose@710 1198 static oop erasedType(oop mtform);
jrose@1765 1199 static oop genericInvoker(oop mtform);
jrose@710 1200
never@2530 1201 static oop vmlayout(oop mtform);
never@2530 1202 static oop init_vmlayout(oop mtform, oop cookie);
never@2530 1203
jrose@710 1204 // Accessors for code generation:
jrose@710 1205 static int vmslots_offset_in_bytes() { return _vmslots_offset; }
never@2530 1206 static int vmlayout_offset_in_bytes() { return _vmlayout_offset; }
jrose@710 1207 static int erasedType_offset_in_bytes() { return _erasedType_offset; }
jrose@1765 1208 static int genericInvoker_offset_in_bytes() { return _genericInvoker_offset; }
jrose@710 1209 };
jrose@710 1210
jrose@710 1211
jrose@2269 1212 // Interface to java.lang.invoke.CallSite objects
jrose@726 1213
jrose@2269 1214 class java_lang_invoke_CallSite: AllStatic {
jrose@726 1215 friend class JavaClasses;
jrose@726 1216
jrose@726 1217 private:
jrose@726 1218 static int _target_offset;
jrose@726 1219
jrose@726 1220 static void compute_offsets();
jrose@726 1221
jrose@726 1222 public:
jrose@726 1223 // Accessors
twisti@2864 1224 static oop target( oop site) { return site->obj_field( _target_offset); }
twisti@2864 1225 static void set_target( oop site, oop target) { site->obj_field_put( _target_offset, target); }
jrose@726 1226
twisti@2864 1227 static volatile oop target_volatile(oop site) { return site->obj_field_volatile( _target_offset); }
twisti@2864 1228 static void set_target_volatile(oop site, oop target) { site->obj_field_put_volatile(_target_offset, target); }
jrose@1474 1229
twisti@1157 1230 // Testers
twisti@1157 1231 static bool is_subclass(klassOop klass) {
twisti@1157 1232 return Klass::cast(klass)->is_subclass_of(SystemDictionary::CallSite_klass());
twisti@1157 1233 }
twisti@1157 1234 static bool is_instance(oop obj) {
twisti@1157 1235 return obj != NULL && is_subclass(obj->klass());
twisti@1157 1236 }
twisti@1157 1237
jrose@726 1238 // Accessors for code generation:
jrose@726 1239 static int target_offset_in_bytes() { return _target_offset; }
jrose@726 1240 };
jrose@710 1241
jrose@710 1242
duke@0 1243 // Interface to java.security.AccessControlContext objects
duke@0 1244
duke@0 1245 class java_security_AccessControlContext: AllStatic {
duke@0 1246 private:
duke@0 1247 // Note that for this class the layout changed between JDK1.2 and JDK1.3,
duke@0 1248 // so we compute the offsets at startup rather than hard-wiring them.
duke@0 1249 static int _context_offset;
duke@0 1250 static int _privilegedContext_offset;
duke@0 1251 static int _isPrivileged_offset;
duke@0 1252
duke@0 1253 static void compute_offsets();
duke@0 1254 public:
duke@0 1255 static oop create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS);
duke@0 1256
duke@0 1257 // Debugging/initialization
duke@0 1258 friend class JavaClasses;
duke@0 1259 };
duke@0 1260
duke@0 1261
duke@0 1262 // Interface to java.lang.ClassLoader objects
duke@0 1263
duke@0 1264 class java_lang_ClassLoader : AllStatic {
duke@0 1265 private:
duke@0 1266 enum {
duke@0 1267 hc_parent_offset = 0
duke@0 1268 };
duke@0 1269
never@2870 1270 static bool offsets_computed;
duke@0 1271 static int parent_offset;
never@2870 1272 static int parallelCapable_offset;
never@2870 1273
never@2870 1274 static void compute_offsets();
duke@0 1275
duke@0 1276 public:
duke@0 1277 static oop parent(oop loader);
duke@0 1278
never@2870 1279 // Support for parallelCapable field
never@2870 1280 static bool parallelCapable(oop the_class_mirror);
never@2870 1281
duke@0 1282 static bool is_trusted_loader(oop loader);
duke@0 1283
duke@0 1284 // Fix for 4474172
duke@0 1285 static oop non_reflection_class_loader(oop loader);
duke@0 1286
duke@0 1287 // Debugging
duke@0 1288 friend class JavaClasses;
duke@0 1289 };
duke@0 1290
duke@0 1291
duke@0 1292 // Interface to java.lang.System objects
duke@0 1293
duke@0 1294 class java_lang_System : AllStatic {
duke@0 1295 private:
duke@0 1296 enum {
duke@0 1297 hc_static_in_offset = 0,
duke@0 1298 hc_static_out_offset = 1,
duke@0 1299 hc_static_err_offset = 2
duke@0 1300 };
duke@0 1301
duke@0 1302 static int static_in_offset;
duke@0 1303 static int static_out_offset;
duke@0 1304 static int static_err_offset;
duke@0 1305
duke@0 1306 public:
duke@0 1307 static int in_offset_in_bytes();
duke@0 1308 static int out_offset_in_bytes();
duke@0 1309 static int err_offset_in_bytes();
duke@0 1310
duke@0 1311 // Debugging
duke@0 1312 friend class JavaClasses;
duke@0 1313 };
duke@0 1314
duke@0 1315
duke@0 1316 // Interface to java.lang.StackTraceElement objects
duke@0 1317
duke@0 1318 class java_lang_StackTraceElement: AllStatic {
duke@0 1319 private:
duke@0 1320 enum {
duke@0 1321 hc_declaringClass_offset = 0,
duke@0 1322 hc_methodName_offset = 1,
duke@0 1323 hc_fileName_offset = 2,
duke@0 1324 hc_lineNumber_offset = 3
duke@0 1325 };
duke@0 1326
duke@0 1327 static int declaringClass_offset;
duke@0 1328 static int methodName_offset;
duke@0 1329 static int fileName_offset;
duke@0 1330 static int lineNumber_offset;
duke@0 1331
duke@0 1332 public:
duke@0 1333 // Setters
duke@0 1334 static void set_declaringClass(oop element, oop value);
duke@0 1335 static void set_methodName(oop element, oop value);
duke@0 1336 static void set_fileName(oop element, oop value);
duke@0 1337 static void set_lineNumber(oop element, int value);
duke@0 1338
duke@0 1339 // Create an instance of StackTraceElement
duke@0 1340 static oop create(methodHandle m, int bci, TRAPS);
duke@0 1341
duke@0 1342 // Debugging
duke@0 1343 friend class JavaClasses;
duke@0 1344 };
duke@0 1345
duke@0 1346
duke@0 1347 // Interface to java.lang.AssertionStatusDirectives objects
duke@0 1348
duke@0 1349 class java_lang_AssertionStatusDirectives: AllStatic {
duke@0 1350 private:
duke@0 1351 enum {
duke@0 1352 hc_classes_offset,
duke@0 1353 hc_classEnabled_offset,
duke@0 1354 hc_packages_offset,
duke@0 1355 hc_packageEnabled_offset,
duke@0 1356 hc_deflt_offset
duke@0 1357 };
duke@0 1358
duke@0 1359 static int classes_offset;
duke@0 1360 static int classEnabled_offset;
duke@0 1361 static int packages_offset;
duke@0 1362 static int packageEnabled_offset;
duke@0 1363 static int deflt_offset;
duke@0 1364
duke@0 1365 public:
duke@0 1366 // Setters
duke@0 1367 static void set_classes(oop obj, oop val);
duke@0 1368 static void set_classEnabled(oop obj, oop val);
duke@0 1369 static void set_packages(oop obj, oop val);
duke@0 1370 static void set_packageEnabled(oop obj, oop val);
duke@0 1371 static void set_deflt(oop obj, bool val);
duke@0 1372 // Debugging
duke@0 1373 friend class JavaClasses;
duke@0 1374 };
duke@0 1375
duke@0 1376
duke@0 1377 class java_nio_Buffer: AllStatic {
duke@0 1378 private:
duke@0 1379 static int _limit_offset;
duke@0 1380
duke@0 1381 public:
duke@0 1382 static int limit_offset();
duke@0 1383 static void compute_offsets();
duke@0 1384 };
duke@0 1385
duke@0 1386 class sun_misc_AtomicLongCSImpl: AllStatic {
duke@0 1387 private:
duke@0 1388 static int _value_offset;
duke@0 1389
duke@0 1390 public:
duke@0 1391 static int value_offset();
duke@0 1392 static void compute_offsets();
duke@0 1393 };
duke@0 1394
duke@0 1395 class java_util_concurrent_locks_AbstractOwnableSynchronizer : AllStatic {
duke@0 1396 private:
duke@0 1397 static int _owner_offset;
duke@0 1398 public:
duke@0 1399 static void initialize(TRAPS);
duke@0 1400 static oop get_owner_threadObj(oop obj);
duke@0 1401 };
duke@0 1402
never@2870 1403 // Use to declare fields that need to be injected into Java classes
never@2870 1404 // for the JVM to use. The name_index and signature_index are
never@2870 1405 // declared in vmSymbols. The may_be_java flag is used to declare
never@2870 1406 // fields that might already exist in Java but should be injected if
never@2870 1407 // they don't. Otherwise the field is unconditionally injected and
never@2870 1408 // the JVM uses the injected one. This is to ensure that name
never@2870 1409 // collisions don't occur. In general may_be_java should be false
never@2870 1410 // unless there's a good reason.
never@2870 1411
never@2870 1412 class InjectedField {
never@2870 1413 public:
never@2870 1414 const SystemDictionary::WKID klass_id;
never@2870 1415 const vmSymbols::SID name_index;
never@2870 1416 const vmSymbols::SID signature_index;
never@2870 1417 const bool may_be_java;
never@2870 1418
never@2870 1419
never@2870 1420 klassOop klass() const { return SystemDictionary::well_known_klass(klass_id); }
never@2870 1421 Symbol* name() const { return lookup_symbol(name_index); }
never@2870 1422 Symbol* signature() const { return lookup_symbol(signature_index); }
never@2870 1423
never@2870 1424 int compute_offset();
never@2870 1425
never@2870 1426 // Find the Symbol for this index
never@2870 1427 static Symbol* lookup_symbol(int symbol_index) {
never@2870 1428 return vmSymbols::symbol_at((vmSymbols::SID)symbol_index);
never@2870 1429 }
never@2870 1430 };
never@2870 1431
never@2870 1432 #define DECLARE_INJECTED_FIELD_ENUM(klass, name, signature, may_be_java) \
never@2870 1433 klass##_##name##_enum,
never@2870 1434
never@2870 1435 #define ALL_INJECTED_FIELDS(macro) \
never@2870 1436 CLASS_INJECTED_FIELDS(macro) \
never@2870 1437 METHODHANDLE_INJECTED_FIELDS(macro) \
never@2870 1438 DIRECTMETHODHANDLE_INJECTED_FIELDS(macro) \
never@2870 1439 MEMBERNAME_INJECTED_FIELDS(macro) \
never@2870 1440 METHODTYPEFORM_INJECTED_FIELDS(macro)
never@2870 1441
duke@0 1442 // Interface to hard-coded offset checking
duke@0 1443
duke@0 1444 class JavaClasses : AllStatic {
duke@0 1445 private:
never@2870 1446
never@2870 1447 static InjectedField _injected_fields[];
never@2870 1448
duke@0 1449 static bool check_offset(const char *klass_name, int offset, const char *field_name, const char* field_sig) PRODUCT_RETURN0;
duke@0 1450 static bool check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) PRODUCT_RETURN0;
jrose@132 1451 static bool check_constant(const char *klass_name, int constant, const char *field_name, const char* field_sig) PRODUCT_RETURN0;
never@2870 1452
duke@0 1453 public:
never@2870 1454 enum InjectedFieldID {
never@2870 1455 ALL_INJECTED_FIELDS(DECLARE_INJECTED_FIELD_ENUM)
never@2870 1456 MAX_enum
never@2870 1457 };
never@2870 1458
never@2870 1459 static int compute_injected_offset(InjectedFieldID id);
never@2870 1460
duke@0 1461 static void compute_hard_coded_offsets();
duke@0 1462 static void compute_offsets();
duke@0 1463 static void check_offsets() PRODUCT_RETURN;
never@2870 1464
never@2870 1465 static InjectedField* get_injected(Symbol* class_name, int* field_count);
duke@0 1466 };
stefank@1932 1467
never@2870 1468 #undef DECLARE_INJECTED_FIELD_ENUM
never@2870 1469
stefank@1932 1470 #endif // SHARE_VM_CLASSFILE_JAVACLASSES_HPP