Mercurial > hg > truffle
annotate src/share/vm/classfile/javaClasses.hpp @ 2376:c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
Reviewed-by: kvn, coleenp, twisti, stefank
| author | never |
|---|---|
| date | Fri, 18 Mar 2011 16:00:34 -0700 |
| parents | 8033953d67ff |
| children | 352622fd140a |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_CLASSFILE_JAVACLASSES_HPP |
| 26 #define SHARE_VM_CLASSFILE_JAVACLASSES_HPP | |
| 27 | |
| 28 #include "classfile/systemDictionary.hpp" | |
| 29 #include "jvmtifiles/jvmti.h" | |
| 30 #include "oops/oop.hpp" | |
| 31 #include "runtime/os.hpp" | |
| 32 #include "utilities/utf8.hpp" | |
| 33 | |
| 0 | 34 // Interface for manipulating the basic Java classes. |
| 35 // | |
| 36 // All dependencies on layout of actual Java classes should be kept here. | |
| 37 // If the layout of any of the classes above changes the offsets must be adjusted. | |
| 38 // | |
| 39 // For most classes we hardwire the offsets for performance reasons. In certain | |
| 40 // cases (e.g. java.security.AccessControlContext) we compute the offsets at | |
| 41 // startup since the layout here differs between JDK1.2 and JDK1.3. | |
| 42 // | |
| 43 // Note that fields (static and non-static) are arranged with oops before non-oops | |
| 44 // on a per class basis. The offsets below have to reflect this ordering. | |
| 45 // | |
| 46 // When editing the layouts please update the check_offset verification code | |
| 47 // correspondingly. The names in the enums must be identical to the actual field | |
| 48 // names in order for the verification code to work. | |
| 49 | |
| 50 | |
| 51 // Interface to java.lang.String objects | |
| 52 | |
| 53 class java_lang_String : AllStatic { | |
| 54 private: | |
| 55 enum { | |
| 56 hc_value_offset = 0, | |
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57 hc_offset_offset = 1 |
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58 //hc_count_offset = 2 -- not a word-scaled offset |
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59 //hc_hash_offset = 3 -- not a word-scaled offset |
| 0 | 60 }; |
| 61 | |
| 62 static int value_offset; | |
| 63 static int offset_offset; | |
| 64 static int count_offset; | |
| 65 static int hash_offset; | |
| 66 | |
| 67 static Handle basic_create(int length, bool tenured, TRAPS); | |
| 68 static Handle basic_create_from_unicode(jchar* unicode, int length, bool tenured, TRAPS); | |
| 69 | |
| 70 static void set_value( oop string, typeArrayOop buffer) { string->obj_field_put(value_offset, (oop)buffer); } | |
| 71 static void set_offset(oop string, int offset) { string->int_field_put(offset_offset, offset); } | |
| 72 static void set_count( oop string, int count) { string->int_field_put(count_offset, count); } | |
| 73 | |
| 74 public: | |
| 75 // Instance creation | |
| 76 static Handle create_from_unicode(jchar* unicode, int len, TRAPS); | |
| 77 static Handle create_tenured_from_unicode(jchar* unicode, int len, TRAPS); | |
| 78 static oop create_oop_from_unicode(jchar* unicode, int len, TRAPS); | |
| 79 static Handle create_from_str(const char* utf8_str, TRAPS); | |
| 80 static oop create_oop_from_str(const char* utf8_str, TRAPS); | |
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81 static Handle create_from_symbol(Symbol* symbol, TRAPS); |
| 0 | 82 static Handle create_from_platform_dependent_str(const char* str, TRAPS); |
| 83 static Handle char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS); | |
| 84 | |
| 85 static int value_offset_in_bytes() { return value_offset; } | |
| 86 static int count_offset_in_bytes() { return count_offset; } | |
| 87 static int offset_offset_in_bytes() { return offset_offset; } | |
| 88 static int hash_offset_in_bytes() { return hash_offset; } | |
| 89 | |
| 90 // Accessors | |
| 91 static typeArrayOop value(oop java_string) { | |
| 92 assert(is_instance(java_string), "must be java_string"); | |
| 93 return (typeArrayOop) java_string->obj_field(value_offset); | |
| 94 } | |
| 95 static int offset(oop java_string) { | |
| 96 assert(is_instance(java_string), "must be java_string"); | |
| 97 return java_string->int_field(offset_offset); | |
| 98 } | |
| 99 static int length(oop java_string) { | |
| 100 assert(is_instance(java_string), "must be java_string"); | |
| 101 return java_string->int_field(count_offset); | |
| 102 } | |
| 103 static int utf8_length(oop java_string); | |
| 104 | |
| 105 // String converters | |
| 106 static char* as_utf8_string(oop java_string); | |
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107 static char* as_utf8_string(oop java_string, char* buf, int buflen); |
| 0 | 108 static char* as_utf8_string(oop java_string, int start, int len); |
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109 static char* as_platform_dependent_str(Handle java_string, TRAPS); |
| 0 | 110 static jchar* as_unicode_string(oop java_string, int& length); |
| 111 | |
| 112 static bool equals(oop java_string, jchar* chars, int len); | |
| 113 | |
| 114 // Conversion between '.' and '/' formats | |
| 115 static Handle externalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '/', '.', THREAD); } | |
| 116 static Handle internalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '.', '/', THREAD); } | |
| 117 | |
| 118 // Conversion | |
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119 static Symbol* as_symbol(Handle java_string, TRAPS); |
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120 static Symbol* as_symbol_or_null(oop java_string); |
| 0 | 121 |
| 122 // Testers | |
| 123 static bool is_instance(oop obj) { | |
| 1142 | 124 return obj != NULL && obj->klass() == SystemDictionary::String_klass(); |
| 0 | 125 } |
| 126 | |
| 127 // Debugging | |
| 128 static void print(Handle java_string, outputStream* st); | |
| 129 friend class JavaClasses; | |
| 130 }; | |
| 131 | |
| 132 | |
| 133 // Interface to java.lang.Class objects | |
| 134 | |
| 135 class java_lang_Class : AllStatic { | |
| 136 friend class VMStructs; | |
| 137 private: | |
| 138 // The fake offsets are added by the class loader when java.lang.Class is loaded | |
| 139 | |
| 140 enum { | |
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141 hc_number_of_fake_oop_fields = 3, |
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142 hc_number_of_fake_int_fields = 2 |
| 0 | 143 }; |
| 144 | |
| 145 static int klass_offset; | |
| 146 static int resolved_constructor_offset; | |
| 147 static int array_klass_offset; | |
| 148 static int number_of_fake_oop_fields; | |
| 149 | |
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150 static int oop_size_offset; |
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151 static int static_oop_field_count_offset; |
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152 |
| 0 | 153 static void compute_offsets(); |
| 154 static bool offsets_computed; | |
| 155 static int classRedefinedCount_offset; | |
| 514 | 156 static int parallelCapable_offset; |
| 0 | 157 |
| 158 public: | |
| 159 // Instance creation | |
| 160 static oop create_mirror(KlassHandle k, TRAPS); | |
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161 static void fixup_mirror(KlassHandle k, TRAPS); |
| 0 | 162 static oop create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS); |
| 163 // Conversion | |
| 164 static klassOop as_klassOop(oop java_class); | |
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165 static BasicType as_BasicType(oop java_class, klassOop* reference_klass = NULL); |
| 710 | 166 static BasicType as_BasicType(oop java_class, KlassHandle* reference_klass) { |
| 167 klassOop refk_oop = NULL; | |
| 168 BasicType result = as_BasicType(java_class, &refk_oop); | |
| 169 (*reference_klass) = KlassHandle(refk_oop); | |
| 170 return result; | |
| 171 } | |
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172 static Symbol* as_signature(oop java_class, bool intern_if_not_found, TRAPS); |
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173 static void print_signature(oop java_class, outputStream *st); |
| 0 | 174 // Testing |
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175 static bool is_instance(oop obj) { |
| 1142 | 176 return obj != NULL && obj->klass() == SystemDictionary::Class_klass(); |
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177 } |
| 0 | 178 static bool is_primitive(oop java_class); |
| 179 static BasicType primitive_type(oop java_class); | |
| 180 static oop primitive_mirror(BasicType t); | |
| 181 // JVM_NewInstance support | |
| 182 static methodOop resolved_constructor(oop java_class); | |
| 183 static void set_resolved_constructor(oop java_class, methodOop constructor); | |
| 184 // JVM_NewArray support | |
| 185 static klassOop array_klass(oop java_class); | |
| 186 static void set_array_klass(oop java_class, klassOop klass); | |
| 187 // compiler support for class operations | |
| 188 static int klass_offset_in_bytes() { return klass_offset; } | |
| 189 static int resolved_constructor_offset_in_bytes() { return resolved_constructor_offset; } | |
| 190 static int array_klass_offset_in_bytes() { return array_klass_offset; } | |
| 191 // Support for classRedefinedCount field | |
| 192 static int classRedefinedCount(oop the_class_mirror); | |
| 193 static void set_classRedefinedCount(oop the_class_mirror, int value); | |
| 514 | 194 // Support for parallelCapable field |
| 195 static bool parallelCapable(oop the_class_mirror); | |
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196 |
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197 static int oop_size(oop java_class); |
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198 static void set_oop_size(oop java_class, int size); |
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199 static int static_oop_field_count(oop java_class); |
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200 static void set_static_oop_field_count(oop java_class, int size); |
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201 |
| 0 | 202 // Debugging |
| 203 friend class JavaClasses; | |
| 204 friend class instanceKlass; // verification code accesses offsets | |
| 205 friend class ClassFileParser; // access to number_of_fake_fields | |
| 206 }; | |
| 207 | |
| 208 // Interface to java.lang.Thread objects | |
| 209 | |
| 210 class java_lang_Thread : AllStatic { | |
| 211 private: | |
| 212 // Note that for this class the layout changed between JDK1.2 and JDK1.3, | |
| 213 // so we compute the offsets at startup rather than hard-wiring them. | |
| 214 static int _name_offset; | |
| 215 static int _group_offset; | |
| 216 static int _contextClassLoader_offset; | |
| 217 static int _inheritedAccessControlContext_offset; | |
| 218 static int _priority_offset; | |
| 219 static int _eetop_offset; | |
| 220 static int _daemon_offset; | |
| 221 static int _stillborn_offset; | |
| 222 static int _stackSize_offset; | |
| 223 static int _tid_offset; | |
| 224 static int _thread_status_offset; | |
| 225 static int _park_blocker_offset; | |
| 226 static int _park_event_offset ; | |
| 227 | |
| 228 static void compute_offsets(); | |
| 229 | |
| 230 public: | |
| 231 // Instance creation | |
| 232 static oop create(); | |
| 233 // Returns the JavaThread associated with the thread obj | |
| 234 static JavaThread* thread(oop java_thread); | |
| 235 // Set JavaThread for instance | |
| 236 static void set_thread(oop java_thread, JavaThread* thread); | |
| 237 // Name | |
| 238 static typeArrayOop name(oop java_thread); | |
| 239 static void set_name(oop java_thread, typeArrayOop name); | |
| 240 // Priority | |
| 241 static ThreadPriority priority(oop java_thread); | |
| 242 static void set_priority(oop java_thread, ThreadPriority priority); | |
| 243 // Thread group | |
| 244 static oop threadGroup(oop java_thread); | |
| 245 // Stillborn | |
| 246 static bool is_stillborn(oop java_thread); | |
| 247 static void set_stillborn(oop java_thread); | |
| 248 // Alive (NOTE: this is not really a field, but provides the correct | |
| 249 // definition without doing a Java call) | |
| 250 static bool is_alive(oop java_thread); | |
| 251 // Daemon | |
| 252 static bool is_daemon(oop java_thread); | |
| 253 static void set_daemon(oop java_thread); | |
| 254 // Context ClassLoader | |
| 255 static oop context_class_loader(oop java_thread); | |
| 256 // Control context | |
| 257 static oop inherited_access_control_context(oop java_thread); | |
| 258 // Stack size hint | |
| 259 static jlong stackSize(oop java_thread); | |
| 260 // Thread ID | |
| 261 static jlong thread_id(oop java_thread); | |
| 262 | |
| 263 // Blocker object responsible for thread parking | |
| 264 static oop park_blocker(oop java_thread); | |
| 265 | |
| 266 // Pointer to type-stable park handler, encoded as jlong. | |
| 267 // Should be set when apparently null | |
| 268 // For details, see unsafe.cpp Unsafe_Unpark | |
| 269 static jlong park_event(oop java_thread); | |
| 270 static bool set_park_event(oop java_thread, jlong ptr); | |
| 271 | |
| 272 // Java Thread Status for JVMTI and M&M use. | |
| 273 // This thread status info is saved in threadStatus field of | |
| 274 // java.lang.Thread java class. | |
| 275 enum ThreadStatus { | |
| 276 NEW = 0, | |
| 277 RUNNABLE = JVMTI_THREAD_STATE_ALIVE + // runnable / running | |
| 278 JVMTI_THREAD_STATE_RUNNABLE, | |
| 279 SLEEPING = JVMTI_THREAD_STATE_ALIVE + // Thread.sleep() | |
| 280 JVMTI_THREAD_STATE_WAITING + | |
| 281 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + | |
| 282 JVMTI_THREAD_STATE_SLEEPING, | |
| 283 IN_OBJECT_WAIT = JVMTI_THREAD_STATE_ALIVE + // Object.wait() | |
| 284 JVMTI_THREAD_STATE_WAITING + | |
| 285 JVMTI_THREAD_STATE_WAITING_INDEFINITELY + | |
| 286 JVMTI_THREAD_STATE_IN_OBJECT_WAIT, | |
| 287 IN_OBJECT_WAIT_TIMED = JVMTI_THREAD_STATE_ALIVE + // Object.wait(long) | |
| 288 JVMTI_THREAD_STATE_WAITING + | |
| 289 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + | |
| 290 JVMTI_THREAD_STATE_IN_OBJECT_WAIT, | |
| 291 PARKED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park() | |
| 292 JVMTI_THREAD_STATE_WAITING + | |
| 293 JVMTI_THREAD_STATE_WAITING_INDEFINITELY + | |
| 294 JVMTI_THREAD_STATE_PARKED, | |
| 295 PARKED_TIMED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park(long) | |
| 296 JVMTI_THREAD_STATE_WAITING + | |
| 297 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + | |
| 298 JVMTI_THREAD_STATE_PARKED, | |
| 299 BLOCKED_ON_MONITOR_ENTER = JVMTI_THREAD_STATE_ALIVE + // (re-)entering a synchronization block | |
| 300 JVMTI_THREAD_STATE_BLOCKED_ON_MONITOR_ENTER, | |
| 301 TERMINATED = JVMTI_THREAD_STATE_TERMINATED | |
| 302 }; | |
| 303 // Write thread status info to threadStatus field of java.lang.Thread. | |
| 304 static void set_thread_status(oop java_thread_oop, ThreadStatus status); | |
| 305 // Read thread status info from threadStatus field of java.lang.Thread. | |
| 306 static ThreadStatus get_thread_status(oop java_thread_oop); | |
| 307 | |
| 308 static const char* thread_status_name(oop java_thread_oop); | |
| 309 | |
| 310 // Debugging | |
| 311 friend class JavaClasses; | |
| 312 }; | |
| 313 | |
| 314 // Interface to java.lang.ThreadGroup objects | |
| 315 | |
| 316 class java_lang_ThreadGroup : AllStatic { | |
| 317 private: | |
| 318 static int _parent_offset; | |
| 319 static int _name_offset; | |
| 320 static int _threads_offset; | |
| 321 static int _groups_offset; | |
| 322 static int _maxPriority_offset; | |
| 323 static int _destroyed_offset; | |
| 324 static int _daemon_offset; | |
| 325 static int _vmAllowSuspension_offset; | |
| 326 static int _nthreads_offset; | |
| 327 static int _ngroups_offset; | |
| 328 | |
| 329 static void compute_offsets(); | |
| 330 | |
| 331 public: | |
| 332 // parent ThreadGroup | |
| 333 static oop parent(oop java_thread_group); | |
| 334 // name | |
| 335 static typeArrayOop name(oop java_thread_group); | |
| 336 // ("name as oop" accessor is not necessary) | |
| 337 // Number of threads in group | |
| 338 static int nthreads(oop java_thread_group); | |
| 339 // threads | |
| 340 static objArrayOop threads(oop java_thread_group); | |
| 341 // Number of threads in group | |
| 342 static int ngroups(oop java_thread_group); | |
| 343 // groups | |
| 344 static objArrayOop groups(oop java_thread_group); | |
| 345 // maxPriority in group | |
| 346 static ThreadPriority maxPriority(oop java_thread_group); | |
| 347 // Destroyed | |
| 348 static bool is_destroyed(oop java_thread_group); | |
| 349 // Daemon | |
| 350 static bool is_daemon(oop java_thread_group); | |
| 351 // vmAllowSuspension | |
| 352 static bool is_vmAllowSuspension(oop java_thread_group); | |
| 353 // Debugging | |
| 354 friend class JavaClasses; | |
| 355 }; | |
| 356 | |
| 357 | |
| 358 | |
| 359 // Interface to java.lang.Throwable objects | |
| 360 | |
| 361 class java_lang_Throwable: AllStatic { | |
| 362 friend class BacktraceBuilder; | |
| 363 | |
| 364 private: | |
| 365 // Offsets | |
| 366 enum { | |
| 367 hc_backtrace_offset = 0, | |
| 368 hc_detailMessage_offset = 1, | |
| 369 hc_cause_offset = 2, // New since 1.4 | |
| 370 hc_stackTrace_offset = 3 // New since 1.4 | |
| 371 }; | |
| 372 // Trace constants | |
| 373 enum { | |
| 374 trace_methods_offset = 0, | |
| 375 trace_bcis_offset = 1, | |
| 376 trace_next_offset = 2, | |
| 377 trace_size = 3, | |
| 378 trace_chunk_size = 32 | |
| 379 }; | |
| 380 | |
| 381 static int backtrace_offset; | |
| 382 static int detailMessage_offset; | |
| 383 static int cause_offset; | |
| 384 static int stackTrace_offset; | |
| 385 | |
| 386 // Printing | |
| 387 static char* print_stack_element_to_buffer(methodOop method, int bci); | |
| 388 static void print_to_stream(Handle stream, const char* str); | |
| 389 // StackTrace (programmatic access, new since 1.4) | |
| 390 static void clear_stacktrace(oop throwable); | |
| 391 // No stack trace available | |
| 392 static const char* no_stack_trace_message(); | |
| 393 | |
| 394 public: | |
| 395 // Backtrace | |
| 396 static oop backtrace(oop throwable); | |
| 397 static void set_backtrace(oop throwable, oop value); | |
| 398 // Needed by JVMTI to filter out this internal field. | |
| 399 static int get_backtrace_offset() { return backtrace_offset;} | |
| 400 static int get_detailMessage_offset() { return detailMessage_offset;} | |
| 401 // Message | |
| 402 static oop message(oop throwable); | |
| 403 static oop message(Handle throwable); | |
| 404 static void set_message(oop throwable, oop value); | |
| 405 // Print stack trace stored in exception by call-back to Java | |
| 406 // Note: this is no longer used in Merlin, but we still suppport | |
| 407 // it for compatibility. | |
| 408 static void print_stack_trace(oop throwable, oop print_stream); | |
| 409 static void print_stack_element(Handle stream, methodOop method, int bci); | |
| 410 static void print_stack_element(outputStream *st, methodOop method, int bci); | |
| 411 static void print_stack_usage(Handle stream); | |
| 412 | |
| 413 // Allocate space for backtrace (created but stack trace not filled in) | |
| 414 static void allocate_backtrace(Handle throwable, TRAPS); | |
| 415 // Fill in current stack trace for throwable with preallocated backtrace (no GC) | |
| 416 static void fill_in_stack_trace_of_preallocated_backtrace(Handle throwable); | |
| 417 | |
| 418 // Fill in current stack trace, can cause GC | |
| 419 static void fill_in_stack_trace(Handle throwable, TRAPS); | |
| 420 static void fill_in_stack_trace(Handle throwable); | |
| 421 // Programmatic access to stack trace | |
| 422 static oop get_stack_trace_element(oop throwable, int index, TRAPS); | |
| 423 static int get_stack_trace_depth(oop throwable, TRAPS); | |
| 424 // Printing | |
| 425 static void print(oop throwable, outputStream* st); | |
| 426 static void print(Handle throwable, outputStream* st); | |
| 427 static void print_stack_trace(oop throwable, outputStream* st); | |
| 428 // Debugging | |
| 429 friend class JavaClasses; | |
| 430 }; | |
| 431 | |
| 432 | |
| 433 // Interface to java.lang.reflect.AccessibleObject objects | |
| 434 | |
| 435 class java_lang_reflect_AccessibleObject: AllStatic { | |
| 436 private: | |
| 437 // Note that to reduce dependencies on the JDK we compute these | |
| 438 // offsets at run-time. | |
| 439 static int override_offset; | |
| 440 | |
| 441 static void compute_offsets(); | |
| 442 | |
| 443 public: | |
| 444 // Accessors | |
| 445 static jboolean override(oop reflect); | |
| 446 static void set_override(oop reflect, jboolean value); | |
| 447 | |
| 448 // Debugging | |
| 449 friend class JavaClasses; | |
| 450 }; | |
| 451 | |
| 452 | |
| 453 // Interface to java.lang.reflect.Method objects | |
| 454 | |
| 455 class java_lang_reflect_Method : public java_lang_reflect_AccessibleObject { | |
| 456 private: | |
| 457 // Note that to reduce dependencies on the JDK we compute these | |
| 458 // offsets at run-time. | |
| 459 static int clazz_offset; | |
| 460 static int name_offset; | |
| 461 static int returnType_offset; | |
| 462 static int parameterTypes_offset; | |
| 463 static int exceptionTypes_offset; | |
| 464 static int slot_offset; | |
| 465 static int modifiers_offset; | |
| 466 static int signature_offset; | |
| 467 static int annotations_offset; | |
| 468 static int parameter_annotations_offset; | |
| 469 static int annotation_default_offset; | |
| 470 | |
| 471 static void compute_offsets(); | |
| 472 | |
| 473 public: | |
| 474 // Allocation | |
| 475 static Handle create(TRAPS); | |
| 476 | |
| 477 // Accessors | |
| 478 static oop clazz(oop reflect); | |
| 479 static void set_clazz(oop reflect, oop value); | |
| 480 | |
| 481 static oop name(oop method); | |
| 482 static void set_name(oop method, oop value); | |
| 483 | |
| 484 static oop return_type(oop method); | |
| 485 static void set_return_type(oop method, oop value); | |
| 486 | |
| 487 static oop parameter_types(oop method); | |
| 488 static void set_parameter_types(oop method, oop value); | |
| 489 | |
| 490 static oop exception_types(oop method); | |
| 491 static void set_exception_types(oop method, oop value); | |
| 492 | |
| 493 static int slot(oop reflect); | |
| 494 static void set_slot(oop reflect, int value); | |
| 495 | |
| 496 static int modifiers(oop method); | |
| 497 static void set_modifiers(oop method, int value); | |
| 498 | |
| 499 static bool has_signature_field(); | |
| 500 static oop signature(oop method); | |
| 501 static void set_signature(oop method, oop value); | |
| 502 | |
| 503 static bool has_annotations_field(); | |
| 504 static oop annotations(oop method); | |
| 505 static void set_annotations(oop method, oop value); | |
| 506 | |
| 507 static bool has_parameter_annotations_field(); | |
| 508 static oop parameter_annotations(oop method); | |
| 509 static void set_parameter_annotations(oop method, oop value); | |
| 510 | |
| 511 static bool has_annotation_default_field(); | |
| 512 static oop annotation_default(oop method); | |
| 513 static void set_annotation_default(oop method, oop value); | |
| 514 | |
| 515 // Debugging | |
| 516 friend class JavaClasses; | |
| 517 }; | |
| 518 | |
| 519 | |
| 520 // Interface to java.lang.reflect.Constructor objects | |
| 521 | |
| 522 class java_lang_reflect_Constructor : public java_lang_reflect_AccessibleObject { | |
| 523 private: | |
| 524 // Note that to reduce dependencies on the JDK we compute these | |
| 525 // offsets at run-time. | |
| 526 static int clazz_offset; | |
| 527 static int parameterTypes_offset; | |
| 528 static int exceptionTypes_offset; | |
| 529 static int slot_offset; | |
| 530 static int modifiers_offset; | |
| 531 static int signature_offset; | |
| 532 static int annotations_offset; | |
| 533 static int parameter_annotations_offset; | |
| 534 | |
| 535 static void compute_offsets(); | |
| 536 | |
| 537 public: | |
| 538 // Allocation | |
| 539 static Handle create(TRAPS); | |
| 540 | |
| 541 // Accessors | |
| 542 static oop clazz(oop reflect); | |
| 543 static void set_clazz(oop reflect, oop value); | |
| 544 | |
| 545 static oop parameter_types(oop constructor); | |
| 546 static void set_parameter_types(oop constructor, oop value); | |
| 547 | |
| 548 static oop exception_types(oop constructor); | |
| 549 static void set_exception_types(oop constructor, oop value); | |
| 550 | |
| 551 static int slot(oop reflect); | |
| 552 static void set_slot(oop reflect, int value); | |
| 553 | |
| 554 static int modifiers(oop constructor); | |
| 555 static void set_modifiers(oop constructor, int value); | |
| 556 | |
| 557 static bool has_signature_field(); | |
| 558 static oop signature(oop constructor); | |
| 559 static void set_signature(oop constructor, oop value); | |
| 560 | |
| 561 static bool has_annotations_field(); | |
| 562 static oop annotations(oop constructor); | |
| 563 static void set_annotations(oop constructor, oop value); | |
| 564 | |
| 565 static bool has_parameter_annotations_field(); | |
| 566 static oop parameter_annotations(oop method); | |
| 567 static void set_parameter_annotations(oop method, oop value); | |
| 568 | |
| 569 // Debugging | |
| 570 friend class JavaClasses; | |
| 571 }; | |
| 572 | |
| 573 | |
| 574 // Interface to java.lang.reflect.Field objects | |
| 575 | |
| 576 class java_lang_reflect_Field : public java_lang_reflect_AccessibleObject { | |
| 577 private: | |
| 578 // Note that to reduce dependencies on the JDK we compute these | |
| 579 // offsets at run-time. | |
| 580 static int clazz_offset; | |
| 581 static int name_offset; | |
| 582 static int type_offset; | |
| 583 static int slot_offset; | |
| 584 static int modifiers_offset; | |
| 585 static int signature_offset; | |
| 586 static int annotations_offset; | |
| 587 | |
| 588 static void compute_offsets(); | |
| 589 | |
| 590 public: | |
| 591 // Allocation | |
| 592 static Handle create(TRAPS); | |
| 593 | |
| 594 // Accessors | |
| 595 static oop clazz(oop reflect); | |
| 596 static void set_clazz(oop reflect, oop value); | |
| 597 | |
| 598 static oop name(oop field); | |
| 599 static void set_name(oop field, oop value); | |
| 600 | |
| 601 static oop type(oop field); | |
| 602 static void set_type(oop field, oop value); | |
| 603 | |
| 604 static int slot(oop reflect); | |
| 605 static void set_slot(oop reflect, int value); | |
| 606 | |
| 607 static int modifiers(oop field); | |
| 608 static void set_modifiers(oop field, int value); | |
| 609 | |
| 610 static bool has_signature_field(); | |
| 611 static oop signature(oop constructor); | |
| 612 static void set_signature(oop constructor, oop value); | |
| 613 | |
| 614 static bool has_annotations_field(); | |
| 615 static oop annotations(oop constructor); | |
| 616 static void set_annotations(oop constructor, oop value); | |
| 617 | |
| 618 static bool has_parameter_annotations_field(); | |
| 619 static oop parameter_annotations(oop method); | |
| 620 static void set_parameter_annotations(oop method, oop value); | |
| 621 | |
| 622 static bool has_annotation_default_field(); | |
| 623 static oop annotation_default(oop method); | |
| 624 static void set_annotation_default(oop method, oop value); | |
| 625 | |
| 626 // Debugging | |
| 627 friend class JavaClasses; | |
| 628 }; | |
| 629 | |
| 630 // Interface to sun.reflect.ConstantPool objects | |
| 631 class sun_reflect_ConstantPool { | |
| 632 private: | |
| 633 // Note that to reduce dependencies on the JDK we compute these | |
| 634 // offsets at run-time. | |
| 635 static int _cp_oop_offset; | |
| 636 | |
| 637 static void compute_offsets(); | |
| 638 | |
| 639 public: | |
| 640 // Allocation | |
| 641 static Handle create(TRAPS); | |
| 642 | |
| 643 // Accessors | |
| 644 static oop cp_oop(oop reflect); | |
| 645 static void set_cp_oop(oop reflect, oop value); | |
| 646 static int cp_oop_offset() { | |
| 647 return _cp_oop_offset; | |
| 648 } | |
| 649 | |
| 650 // Debugging | |
| 651 friend class JavaClasses; | |
| 652 }; | |
| 653 | |
| 654 // Interface to sun.reflect.UnsafeStaticFieldAccessorImpl objects | |
| 655 class sun_reflect_UnsafeStaticFieldAccessorImpl { | |
| 656 private: | |
| 657 static int _base_offset; | |
| 658 static void compute_offsets(); | |
| 659 | |
| 660 public: | |
| 661 static int base_offset() { | |
| 662 return _base_offset; | |
| 663 } | |
| 664 | |
| 665 // Debugging | |
| 666 friend class JavaClasses; | |
| 667 }; | |
| 668 | |
| 669 // Interface to java.lang primitive type boxing objects: | |
| 670 // - java.lang.Boolean | |
| 671 // - java.lang.Character | |
| 672 // - java.lang.Float | |
| 673 // - java.lang.Double | |
| 674 // - java.lang.Byte | |
| 675 // - java.lang.Short | |
| 676 // - java.lang.Integer | |
| 677 // - java.lang.Long | |
| 678 | |
| 679 // This could be separated out into 8 individual classes. | |
| 680 | |
| 681 class java_lang_boxing_object: AllStatic { | |
| 682 private: | |
| 683 enum { | |
| 684 hc_value_offset = 0 | |
| 685 }; | |
| 686 static int value_offset; | |
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687 static int long_value_offset; |
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689 static oop initialize_and_allocate(BasicType type, TRAPS); |
| 0 | 690 public: |
| 691 // Allocation. Returns a boxed value, or NULL for invalid type. | |
| 692 static oop create(BasicType type, jvalue* value, TRAPS); | |
| 693 // Accessors. Returns the basic type being boxed, or T_ILLEGAL for invalid oop. | |
| 694 static BasicType get_value(oop box, jvalue* value); | |
| 695 static BasicType set_value(oop box, jvalue* value); | |
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696 static BasicType basic_type(oop box); |
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697 static bool is_instance(oop box) { return basic_type(box) != T_ILLEGAL; } |
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698 static bool is_instance(oop box, BasicType type) { return basic_type(box) == type; } |
|
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699 static void print(oop box, outputStream* st) { jvalue value; print(get_value(box, &value), &value, st); } |
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700 static void print(BasicType type, jvalue* value, outputStream* st); |
| 0 | 701 |
|
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702 static int value_offset_in_bytes(BasicType type) { |
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703 return ( type == T_LONG || type == T_DOUBLE ) ? long_value_offset : |
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704 value_offset; |
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705 } |
| 0 | 706 |
| 707 // Debugging | |
| 708 friend class JavaClasses; | |
| 709 }; | |
| 710 | |
| 711 | |
| 712 | |
| 713 // Interface to java.lang.ref.Reference objects | |
| 714 | |
| 715 class java_lang_ref_Reference: AllStatic { | |
| 716 public: | |
| 717 enum { | |
| 718 hc_referent_offset = 0, | |
| 719 hc_queue_offset = 1, | |
| 720 hc_next_offset = 2, | |
| 721 hc_discovered_offset = 3 // Is not last, see SoftRefs. | |
| 722 }; | |
| 723 enum { | |
| 724 hc_static_lock_offset = 0, | |
| 725 hc_static_pending_offset = 1 | |
| 726 }; | |
| 727 | |
| 728 static int referent_offset; | |
| 729 static int queue_offset; | |
| 730 static int next_offset; | |
| 731 static int discovered_offset; | |
| 732 static int static_lock_offset; | |
| 733 static int static_pending_offset; | |
| 734 static int number_of_fake_oop_fields; | |
| 735 | |
| 736 // Accessors | |
|
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737 static oop referent(oop ref) { |
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738 return ref->obj_field(referent_offset); |
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739 } |
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740 static void set_referent(oop ref, oop value) { |
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741 ref->obj_field_put(referent_offset, value); |
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742 } |
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743 static void set_referent_raw(oop ref, oop value) { |
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744 ref->obj_field_raw_put(referent_offset, value); |
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745 } |
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746 static HeapWord* referent_addr(oop ref) { |
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747 return ref->obj_field_addr<HeapWord>(referent_offset); |
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748 } |
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749 static oop next(oop ref) { |
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750 return ref->obj_field(next_offset); |
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751 } |
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752 static void set_next(oop ref, oop value) { |
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753 ref->obj_field_put(next_offset, value); |
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754 } |
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755 static void set_next_raw(oop ref, oop value) { |
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756 ref->obj_field_raw_put(next_offset, value); |
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757 } |
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758 static HeapWord* next_addr(oop ref) { |
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759 return ref->obj_field_addr<HeapWord>(next_offset); |
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760 } |
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761 static oop discovered(oop ref) { |
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762 return ref->obj_field(discovered_offset); |
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763 } |
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764 static void set_discovered(oop ref, oop value) { |
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765 ref->obj_field_put(discovered_offset, value); |
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766 } |
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767 static void set_discovered_raw(oop ref, oop value) { |
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768 ref->obj_field_raw_put(discovered_offset, value); |
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769 } |
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770 static HeapWord* discovered_addr(oop ref) { |
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771 return ref->obj_field_addr<HeapWord>(discovered_offset); |
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772 } |
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773 // Accessors for statics |
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774 static oop pending_list_lock(); |
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775 static oop pending_list(); |
| 0 | 776 |
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777 static HeapWord* pending_list_addr(); |
| 0 | 778 }; |
| 779 | |
| 780 | |
| 781 // Interface to java.lang.ref.SoftReference objects | |
| 782 | |
| 783 class java_lang_ref_SoftReference: public java_lang_ref_Reference { | |
| 784 public: | |
| 785 enum { | |
| 786 // The timestamp is a long field and may need to be adjusted for alignment. | |
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787 hc_timestamp_offset = hc_discovered_offset + 1 |
| 0 | 788 }; |
| 789 enum { | |
| 790 hc_static_clock_offset = 0 | |
| 791 }; | |
| 792 | |
| 793 static int timestamp_offset; | |
| 794 static int static_clock_offset; | |
| 795 | |
| 796 // Accessors | |
| 797 static jlong timestamp(oop ref); | |
| 798 | |
| 799 // Accessors for statics | |
| 800 static jlong clock(); | |
| 801 static void set_clock(jlong value); | |
| 802 }; | |
| 803 | |
| 804 | |
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805 // Interface to java.lang.invoke.MethodHandle objects |
| 710 | 806 |
| 807 class MethodHandleEntry; | |
| 808 | |
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809 class java_lang_invoke_MethodHandle: AllStatic { |
| 710 | 810 friend class JavaClasses; |
| 811 | |
| 812 private: | |
| 813 static int _vmentry_offset; // assembly code trampoline for MH | |
| 814 static int _vmtarget_offset; // class-specific target reference | |
| 815 static int _type_offset; // the MethodType of this MH | |
| 816 static int _vmslots_offset; // OPTIONAL hoisted type.form.vmslots | |
| 817 | |
| 818 static void compute_offsets(); | |
| 819 | |
| 820 public: | |
| 821 // Accessors | |
| 822 static oop type(oop mh); | |
| 823 static void set_type(oop mh, oop mtype); | |
| 824 | |
| 825 static oop vmtarget(oop mh); | |
| 826 static void set_vmtarget(oop mh, oop target); | |
| 827 | |
| 828 static MethodHandleEntry* vmentry(oop mh); | |
| 829 static void set_vmentry(oop mh, MethodHandleEntry* data); | |
| 830 | |
| 831 static int vmslots(oop mh); | |
| 832 static void init_vmslots(oop mh); | |
| 833 static int compute_vmslots(oop mh); | |
| 834 | |
| 835 // Testers | |
| 836 static bool is_subclass(klassOop klass) { | |
| 837 return Klass::cast(klass)->is_subclass_of(SystemDictionary::MethodHandle_klass()); | |
| 838 } | |
| 839 static bool is_instance(oop obj) { | |
| 840 return obj != NULL && is_subclass(obj->klass()); | |
| 841 } | |
| 842 | |
| 843 // Accessors for code generation: | |
| 844 static int type_offset_in_bytes() { return _type_offset; } | |
| 845 static int vmtarget_offset_in_bytes() { return _vmtarget_offset; } | |
| 846 static int vmentry_offset_in_bytes() { return _vmentry_offset; } | |
| 847 static int vmslots_offset_in_bytes() { return _vmslots_offset; } | |
| 848 }; | |
| 849 | |
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850 class java_lang_invoke_DirectMethodHandle: public java_lang_invoke_MethodHandle { |
| 710 | 851 friend class JavaClasses; |
| 852 | |
| 853 private: | |
| 854 // _vmtarget_offset; // method or class or interface | |
| 855 static int _vmindex_offset; // negative or vtable idx or itable idx | |
| 856 static void compute_offsets(); | |
| 857 | |
| 858 public: | |
| 859 // Accessors | |
| 860 static int vmindex(oop mh); | |
| 861 static void set_vmindex(oop mh, int index); | |
| 862 | |
| 863 // Testers | |
| 864 static bool is_subclass(klassOop klass) { | |
| 865 return Klass::cast(klass)->is_subclass_of(SystemDictionary::DirectMethodHandle_klass()); | |
| 866 } | |
| 867 static bool is_instance(oop obj) { | |
| 868 return obj != NULL && is_subclass(obj->klass()); | |
| 869 } | |
| 870 | |
| 871 // Accessors for code generation: | |
| 872 static int vmindex_offset_in_bytes() { return _vmindex_offset; } | |
| 873 }; | |
| 874 | |
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875 class java_lang_invoke_BoundMethodHandle: public java_lang_invoke_MethodHandle { |
| 710 | 876 friend class JavaClasses; |
| 877 | |
| 878 private: | |
| 879 static int _argument_offset; // argument value bound into this MH | |
| 880 static int _vmargslot_offset; // relevant argument slot (<= vmslots) | |
| 881 static void compute_offsets(); | |
| 882 | |
| 883 public: | |
| 884 static oop argument(oop mh); | |
| 885 static void set_argument(oop mh, oop ref); | |
| 886 | |
| 887 static jint vmargslot(oop mh); | |
| 888 static void set_vmargslot(oop mh, jint slot); | |
| 889 | |
| 890 // Testers | |
| 891 static bool is_subclass(klassOop klass) { | |
| 892 return Klass::cast(klass)->is_subclass_of(SystemDictionary::BoundMethodHandle_klass()); | |
| 893 } | |
| 894 static bool is_instance(oop obj) { | |
| 895 return obj != NULL && is_subclass(obj->klass()); | |
| 896 } | |
| 897 | |
| 898 static int argument_offset_in_bytes() { return _argument_offset; } | |
| 899 static int vmargslot_offset_in_bytes() { return _vmargslot_offset; } | |
| 900 }; | |
| 901 | |
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902 class java_lang_invoke_AdapterMethodHandle: public java_lang_invoke_BoundMethodHandle { |
| 710 | 903 friend class JavaClasses; |
| 904 | |
| 905 private: | |
| 906 static int _conversion_offset; // type of conversion to apply | |
| 907 static void compute_offsets(); | |
| 908 | |
| 909 public: | |
| 910 static int conversion(oop mh); | |
| 911 static void set_conversion(oop mh, int conv); | |
| 912 | |
| 913 // Testers | |
| 914 static bool is_subclass(klassOop klass) { | |
| 915 return Klass::cast(klass)->is_subclass_of(SystemDictionary::AdapterMethodHandle_klass()); | |
| 916 } | |
| 917 static bool is_instance(oop obj) { | |
| 918 return obj != NULL && is_subclass(obj->klass()); | |
| 919 } | |
| 920 | |
| 921 // Relevant integer codes (keep these in synch. with MethodHandleNatives.Constants): | |
| 922 enum { | |
| 923 OP_RETYPE_ONLY = 0x0, // no argument changes; straight retype | |
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924 OP_RETYPE_RAW = 0x1, // straight retype, trusted (void->int, Object->T) |
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925 OP_CHECK_CAST = 0x2, // ref-to-ref conversion; requires a Class argument |
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926 OP_PRIM_TO_PRIM = 0x3, // converts from one primitive to another |
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927 OP_REF_TO_PRIM = 0x4, // unboxes a wrapper to produce a primitive |
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928 OP_PRIM_TO_REF = 0x5, // boxes a primitive into a wrapper (NYI) |
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929 OP_SWAP_ARGS = 0x6, // swap arguments (vminfo is 2nd arg) |
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930 OP_ROT_ARGS = 0x7, // rotate arguments (vminfo is displaced arg) |
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931 OP_DUP_ARGS = 0x8, // duplicates one or more arguments (at TOS) |
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932 OP_DROP_ARGS = 0x9, // remove one or more argument slots |
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933 OP_COLLECT_ARGS = 0xA, // combine one or more arguments into a varargs (NYI) |
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934 OP_SPREAD_ARGS = 0xB, // expand in place a varargs array (of known size) |
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935 OP_FLYBY = 0xC, // operate first on reified argument list (NYI) |
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936 OP_RICOCHET = 0xD, // run an adapter chain on the return value (NYI) |
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937 CONV_OP_LIMIT = 0xE, // limit of CONV_OP enumeration |
| 710 | 938 |
| 939 CONV_OP_MASK = 0xF00, // this nybble contains the conversion op field | |
| 940 CONV_VMINFO_MASK = 0x0FF, // LSB is reserved for JVM use | |
| 941 CONV_VMINFO_SHIFT = 0, // position of bits in CONV_VMINFO_MASK | |
| 942 CONV_OP_SHIFT = 8, // position of bits in CONV_OP_MASK | |
| 943 CONV_DEST_TYPE_SHIFT = 12, // byte 2 has the adapter BasicType (if needed) | |
| 944 CONV_SRC_TYPE_SHIFT = 16, // byte 2 has the source BasicType (if needed) | |
| 945 CONV_STACK_MOVE_SHIFT = 20, // high 12 bits give signed SP change | |
| 946 CONV_STACK_MOVE_MASK = (1 << (32 - CONV_STACK_MOVE_SHIFT)) - 1 | |
| 947 }; | |
| 948 | |
| 949 static int conversion_offset_in_bytes() { return _conversion_offset; } | |
| 950 }; | |
| 951 | |
| 952 | |
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953 // Interface to java.lang.invoke.MemberName objects |
| 710 | 954 // (These are a private interface for Java code to query the class hierarchy.) |
| 955 | |
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956 class java_lang_invoke_MemberName: AllStatic { |
| 710 | 957 friend class JavaClasses; |
| 958 | |
| 959 private: | |
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960 // From java.lang.invoke.MemberName: |
| 710 | 961 // private Class<?> clazz; // class in which the method is defined |
| 962 // private String name; // may be null if not yet materialized | |
| 963 // private Object type; // may be null if not yet materialized | |
| 964 // private int flags; // modifier bits; see reflect.Modifier | |
| 965 // private Object vmtarget; // VM-specific target value | |
| 966 // private int vmindex; // method index within class or interface | |
| 967 static int _clazz_offset; | |
| 968 static int _name_offset; | |
| 969 static int _type_offset; | |
| 970 static int _flags_offset; | |
| 971 static int _vmtarget_offset; | |
| 972 static int _vmindex_offset; | |
| 973 | |
| 974 static void compute_offsets(); | |
| 975 | |
| 976 public: | |
| 977 // Accessors | |
| 978 static oop clazz(oop mname); | |
| 979 static void set_clazz(oop mname, oop clazz); | |
| 980 | |
| 981 static oop type(oop mname); | |
| 982 static void set_type(oop mname, oop type); | |
| 983 | |
| 984 static oop name(oop mname); | |
| 985 static void set_name(oop mname, oop name); | |
| 986 | |
| 987 static int flags(oop mname); | |
| 988 static void set_flags(oop mname, int flags); | |
| 989 | |
| 990 static int modifiers(oop mname) { return (u2) flags(mname); } | |
| 991 static void set_modifiers(oop mname, int mods) | |
| 992 { set_flags(mname, (flags(mname) &~ (u2)-1) | (u2)mods); } | |
| 993 | |
| 994 static oop vmtarget(oop mname); | |
| 995 static void set_vmtarget(oop mname, oop target); | |
| 996 | |
| 997 static int vmindex(oop mname); | |
| 998 static void set_vmindex(oop mname, int index); | |
| 999 | |
| 1000 // Testers | |
| 1001 static bool is_subclass(klassOop klass) { | |
| 1002 return Klass::cast(klass)->is_subclass_of(SystemDictionary::MemberName_klass()); | |
| 1003 } | |
| 1004 static bool is_instance(oop obj) { | |
| 1005 return obj != NULL && is_subclass(obj->klass()); | |
| 1006 } | |
| 1007 | |
| 1008 // Relevant integer codes (keep these in synch. with MethodHandleNatives.Constants): | |
| 1009 enum { | |
| 1010 MN_IS_METHOD = 0x00010000, // method (not constructor) | |
| 1011 MN_IS_CONSTRUCTOR = 0x00020000, // constructor | |
| 1012 MN_IS_FIELD = 0x00040000, // field | |
| 1013 MN_IS_TYPE = 0x00080000, // nested type | |
| 1014 MN_SEARCH_SUPERCLASSES = 0x00100000, // for MHN.getMembers | |
| 1015 MN_SEARCH_INTERFACES = 0x00200000, // for MHN.getMembers | |
| 1016 VM_INDEX_UNINITIALIZED = -99 | |
| 1017 }; | |
| 1018 | |
| 1019 // Accessors for code generation: | |
| 1020 static int clazz_offset_in_bytes() { return _clazz_offset; } | |
| 1021 static int type_offset_in_bytes() { return _type_offset; } | |
| 1022 static int name_offset_in_bytes() { return _name_offset; } | |
| 1023 static int flags_offset_in_bytes() { return _flags_offset; } | |
| 1024 static int vmtarget_offset_in_bytes() { return _vmtarget_offset; } | |
| 1025 static int vmindex_offset_in_bytes() { return _vmindex_offset; } | |
| 1026 }; | |
| 1027 | |
| 1028 | |
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1029 // Interface to java.lang.invoke.MethodType objects |
| 710 | 1030 |
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1031 class java_lang_invoke_MethodType: AllStatic { |
| 710 | 1032 friend class JavaClasses; |
| 1033 | |
| 1034 private: | |
| 1035 static int _rtype_offset; | |
| 1036 static int _ptypes_offset; | |
| 1037 static int _form_offset; | |
| 1038 | |
| 1039 static void compute_offsets(); | |
| 1040 | |
| 1041 public: | |
| 1042 // Accessors | |
| 1043 static oop rtype(oop mt); | |
| 1044 static objArrayOop ptypes(oop mt); | |
| 1045 static oop form(oop mt); | |
| 1046 | |
| 1047 static oop ptype(oop mt, int index); | |
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1048 static int ptype_count(oop mt); |
| 710 | 1049 |
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1050 static Symbol* as_signature(oop mt, bool intern_if_not_found, TRAPS); |
| 710 | 1051 static void print_signature(oop mt, outputStream* st); |
| 1052 | |
| 1053 static bool is_instance(oop obj) { | |
| 1054 return obj != NULL && obj->klass() == SystemDictionary::MethodType_klass(); | |
| 1055 } | |
| 1056 | |
| 1057 // Accessors for code generation: | |
| 1058 static int rtype_offset_in_bytes() { return _rtype_offset; } | |
| 1059 static int ptypes_offset_in_bytes() { return _ptypes_offset; } | |
| 1060 static int form_offset_in_bytes() { return _form_offset; } | |
| 1061 }; | |
| 1062 | |
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1063 class java_lang_invoke_MethodTypeForm: AllStatic { |
| 710 | 1064 friend class JavaClasses; |
| 1065 | |
| 1066 private: | |
| 1067 static int _vmslots_offset; // number of argument slots needed | |
| 1068 static int _erasedType_offset; // erasedType = canonical MethodType | |
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1069 static int _genericInvoker_offset; // genericInvoker = adapter for invokeGeneric |
| 710 | 1070 |
| 1071 static void compute_offsets(); | |
| 1072 | |
| 1073 public: | |
| 1074 // Accessors | |
| 1075 static int vmslots(oop mtform); | |
| 1076 static oop erasedType(oop mtform); | |
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1077 static oop genericInvoker(oop mtform); |
| 710 | 1078 |
| 1079 // Accessors for code generation: | |
| 1080 static int vmslots_offset_in_bytes() { return _vmslots_offset; } | |
| 1081 static int erasedType_offset_in_bytes() { return _erasedType_offset; } | |
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1082 static int genericInvoker_offset_in_bytes() { return _genericInvoker_offset; } |
| 710 | 1083 }; |
| 1084 | |
| 1085 | |
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1086 // Interface to java.lang.invoke.CallSite objects |
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1087 |
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1088 class java_lang_invoke_CallSite: AllStatic { |
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1089 friend class JavaClasses; |
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1090 |
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1091 private: |
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1092 static int _target_offset; |
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1093 static int _caller_method_offset; |
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1094 static int _caller_bci_offset; |
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1095 |
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1096 static void compute_offsets(); |
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1097 |
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1098 public: |
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1099 // Accessors |
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1100 static oop target(oop site); |
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1101 static void set_target(oop site, oop target); |
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1102 |
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1103 static oop caller_method(oop site); |
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1104 static void set_caller_method(oop site, oop ref); |
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1105 |
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1106 static jint caller_bci(oop site); |
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1107 static void set_caller_bci(oop site, jint bci); |
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1108 |
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1109 // Testers |
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1110 static bool is_subclass(klassOop klass) { |
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1111 return Klass::cast(klass)->is_subclass_of(SystemDictionary::CallSite_klass()); |
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1112 } |
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1113 static bool is_instance(oop obj) { |
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1114 return obj != NULL && is_subclass(obj->klass()); |
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1115 } |
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1116 |
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1117 // Accessors for code generation: |
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1118 static int target_offset_in_bytes() { return _target_offset; } |
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1119 static int caller_method_offset_in_bytes() { return _caller_method_offset; } |
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1120 static int caller_bci_offset_in_bytes() { return _caller_bci_offset; } |
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1121 }; |
| 710 | 1122 |
| 1123 | |
| 0 | 1124 // Interface to java.security.AccessControlContext objects |
| 1125 | |
| 1126 class java_security_AccessControlContext: AllStatic { | |
| 1127 private: | |
| 1128 // Note that for this class the layout changed between JDK1.2 and JDK1.3, | |
| 1129 // so we compute the offsets at startup rather than hard-wiring them. | |
| 1130 static int _context_offset; | |
| 1131 static int _privilegedContext_offset; | |
| 1132 static int _isPrivileged_offset; | |
| 1133 | |
| 1134 static void compute_offsets(); | |
| 1135 public: | |
| 1136 static oop create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS); | |
| 1137 | |
| 1138 // Debugging/initialization | |
| 1139 friend class JavaClasses; | |
| 1140 }; | |
| 1141 | |
| 1142 | |
| 1143 // Interface to java.lang.ClassLoader objects | |
| 1144 | |
| 1145 class java_lang_ClassLoader : AllStatic { | |
| 1146 private: | |
| 1147 enum { | |
| 1148 hc_parent_offset = 0 | |
| 1149 }; | |
| 1150 | |
| 1151 static int parent_offset; | |
| 1152 | |
| 1153 public: | |
| 1154 static oop parent(oop loader); | |
| 1155 | |
| 1156 static bool is_trusted_loader(oop loader); | |
| 1157 | |
| 1158 // Fix for 4474172 | |
| 1159 static oop non_reflection_class_loader(oop loader); | |
| 1160 | |
| 1161 // Debugging | |
| 1162 friend class JavaClasses; | |
| 1163 }; | |
| 1164 | |
| 1165 | |
| 1166 // Interface to java.lang.System objects | |
| 1167 | |
| 1168 class java_lang_System : AllStatic { | |
| 1169 private: | |
| 1170 enum { | |
| 1171 hc_static_in_offset = 0, | |
| 1172 hc_static_out_offset = 1, | |
| 1173 hc_static_err_offset = 2 | |
| 1174 }; | |
| 1175 | |
| 1176 static int static_in_offset; | |
| 1177 static int static_out_offset; | |
| 1178 static int static_err_offset; | |
| 1179 | |
| 1180 public: | |
| 1181 static int in_offset_in_bytes(); | |
| 1182 static int out_offset_in_bytes(); | |
| 1183 static int err_offset_in_bytes(); | |
| 1184 | |
| 1185 // Debugging | |
| 1186 friend class JavaClasses; | |
| 1187 }; | |
| 1188 | |
| 1189 | |
| 1190 // Interface to java.lang.StackTraceElement objects | |
| 1191 | |
| 1192 class java_lang_StackTraceElement: AllStatic { | |
| 1193 private: | |
| 1194 enum { | |
| 1195 hc_declaringClass_offset = 0, | |
| 1196 hc_methodName_offset = 1, | |
| 1197 hc_fileName_offset = 2, | |
| 1198 hc_lineNumber_offset = 3 | |
| 1199 }; | |
| 1200 | |
| 1201 static int declaringClass_offset; | |
| 1202 static int methodName_offset; | |
| 1203 static int fileName_offset; | |
| 1204 static int lineNumber_offset; | |
| 1205 | |
| 1206 public: | |
| 1207 // Setters | |
| 1208 static void set_declaringClass(oop element, oop value); | |
| 1209 static void set_methodName(oop element, oop value); | |
| 1210 static void set_fileName(oop element, oop value); | |
| 1211 static void set_lineNumber(oop element, int value); | |
| 1212 | |
| 1213 // Create an instance of StackTraceElement | |
| 1214 static oop create(methodHandle m, int bci, TRAPS); | |
| 1215 | |
| 1216 // Debugging | |
| 1217 friend class JavaClasses; | |
| 1218 }; | |
| 1219 | |
| 1220 | |
| 1221 // Interface to java.lang.AssertionStatusDirectives objects | |
| 1222 | |
| 1223 class java_lang_AssertionStatusDirectives: AllStatic { | |
| 1224 private: | |
| 1225 enum { | |
| 1226 hc_classes_offset, | |
| 1227 hc_classEnabled_offset, | |
| 1228 hc_packages_offset, | |
| 1229 hc_packageEnabled_offset, | |
| 1230 hc_deflt_offset | |
| 1231 }; | |
| 1232 | |
| 1233 static int classes_offset; | |
| 1234 static int classEnabled_offset; | |
| 1235 static int packages_offset; | |
| 1236 static int packageEnabled_offset; | |
| 1237 static int deflt_offset; | |
| 1238 | |
| 1239 public: | |
| 1240 // Setters | |
| 1241 static void set_classes(oop obj, oop val); | |
| 1242 static void set_classEnabled(oop obj, oop val); | |
| 1243 static void set_packages(oop obj, oop val); | |
| 1244 static void set_packageEnabled(oop obj, oop val); | |
| 1245 static void set_deflt(oop obj, bool val); | |
| 1246 // Debugging | |
| 1247 friend class JavaClasses; | |
| 1248 }; | |
| 1249 | |
| 1250 | |
| 1251 class java_nio_Buffer: AllStatic { | |
| 1252 private: | |
| 1253 static int _limit_offset; | |
| 1254 | |
| 1255 public: | |
| 1256 static int limit_offset(); | |
| 1257 static void compute_offsets(); | |
| 1258 }; | |
| 1259 | |
| 1260 class sun_misc_AtomicLongCSImpl: AllStatic { | |
| 1261 private: | |
| 1262 static int _value_offset; | |
| 1263 | |
| 1264 public: | |
| 1265 static int value_offset(); | |
| 1266 static void compute_offsets(); | |
| 1267 }; | |
| 1268 | |
| 1269 class java_util_concurrent_locks_AbstractOwnableSynchronizer : AllStatic { | |
| 1270 private: | |
| 1271 static int _owner_offset; | |
| 1272 public: | |
| 1273 static void initialize(TRAPS); | |
| 1274 static oop get_owner_threadObj(oop obj); | |
| 1275 }; | |
| 1276 | |
| 1277 // Interface to hard-coded offset checking | |
| 1278 | |
| 1279 class JavaClasses : AllStatic { | |
| 1280 private: | |
| 1281 static bool check_offset(const char *klass_name, int offset, const char *field_name, const char* field_sig) PRODUCT_RETURN0; | |
| 1282 static bool check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) PRODUCT_RETURN0; | |
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1283 static bool check_constant(const char *klass_name, int constant, const char *field_name, const char* field_sig) PRODUCT_RETURN0; |
| 0 | 1284 public: |
| 1285 static void compute_hard_coded_offsets(); | |
| 1286 static void compute_offsets(); | |
| 1287 static void check_offsets() PRODUCT_RETURN; | |
| 1288 }; | |
| 1972 | 1289 |
| 1290 #endif // SHARE_VM_CLASSFILE_JAVACLASSES_HPP |