Mercurial > hg > graal-compiler
annotate src/share/vm/classfile/javaClasses.hpp @ 6725:da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
| author | coleenp |
|---|---|
| date | Sat, 01 Sep 2012 13:25:18 -0400 |
| parents | 1d7922586cf6 |
| children | e522a00b91aa bd7a7ce2e264 070d523b96a7 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 6057 | 2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_CLASSFILE_JAVACLASSES_HPP |
| 26 #define SHARE_VM_CLASSFILE_JAVACLASSES_HPP | |
| 27 | |
| 28 #include "classfile/systemDictionary.hpp" | |
| 29 #include "jvmtifiles/jvmti.h" | |
| 30 #include "oops/oop.hpp" | |
| 31 #include "runtime/os.hpp" | |
| 32 #include "utilities/utf8.hpp" | |
| 33 | |
| 0 | 34 // Interface for manipulating the basic Java classes. |
| 35 // | |
| 36 // All dependencies on layout of actual Java classes should be kept here. | |
| 37 // If the layout of any of the classes above changes the offsets must be adjusted. | |
| 38 // | |
| 39 // For most classes we hardwire the offsets for performance reasons. In certain | |
| 40 // cases (e.g. java.security.AccessControlContext) we compute the offsets at | |
| 41 // startup since the layout here differs between JDK1.2 and JDK1.3. | |
| 42 // | |
| 43 // Note that fields (static and non-static) are arranged with oops before non-oops | |
| 44 // on a per class basis. The offsets below have to reflect this ordering. | |
| 45 // | |
| 46 // When editing the layouts please update the check_offset verification code | |
| 47 // correspondingly. The names in the enums must be identical to the actual field | |
| 48 // names in order for the verification code to work. | |
| 49 | |
| 50 | |
| 51 // Interface to java.lang.String objects | |
| 52 | |
| 53 class java_lang_String : AllStatic { | |
| 54 private: | |
| 55 static int value_offset; | |
| 56 static int offset_offset; | |
| 57 static int count_offset; | |
| 58 static int hash_offset; | |
| 59 | |
| 6057 | 60 static bool initialized; |
| 61 | |
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62 static Handle basic_create(int length, TRAPS); |
| 0 | 63 |
| 6057 | 64 static void set_value( oop string, typeArrayOop buffer) { |
| 65 assert(initialized, "Must be initialized"); | |
| 66 string->obj_field_put(value_offset, (oop)buffer); | |
| 67 } | |
| 68 static void set_offset(oop string, int offset) { | |
| 69 assert(initialized, "Must be initialized"); | |
| 70 if (offset_offset > 0) { | |
| 71 string->int_field_put(offset_offset, offset); | |
| 72 } | |
| 73 } | |
| 74 static void set_count( oop string, int count) { | |
| 75 assert(initialized, "Must be initialized"); | |
| 76 if (count_offset > 0) { | |
| 77 string->int_field_put(count_offset, count); | |
| 78 } | |
| 79 } | |
| 0 | 80 |
| 81 public: | |
| 6057 | 82 static void compute_offsets(); |
| 83 | |
| 0 | 84 // Instance creation |
| 85 static Handle create_from_unicode(jchar* unicode, int len, TRAPS); | |
| 86 static oop create_oop_from_unicode(jchar* unicode, int len, TRAPS); | |
| 87 static Handle create_from_str(const char* utf8_str, TRAPS); | |
| 88 static oop create_oop_from_str(const char* utf8_str, TRAPS); | |
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89 static Handle create_from_symbol(Symbol* symbol, TRAPS); |
| 0 | 90 static Handle create_from_platform_dependent_str(const char* str, TRAPS); |
| 91 static Handle char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS); | |
| 92 | |
| 6057 | 93 static bool has_offset_field() { |
| 94 assert(initialized, "Must be initialized"); | |
| 95 return (offset_offset > 0); | |
| 96 } | |
| 97 | |
| 98 static bool has_count_field() { | |
| 99 assert(initialized, "Must be initialized"); | |
| 100 return (count_offset > 0); | |
| 101 } | |
| 102 | |
| 103 static bool has_hash_field() { | |
| 104 assert(initialized, "Must be initialized"); | |
| 105 return (hash_offset > 0); | |
| 106 } | |
| 107 | |
| 108 static int value_offset_in_bytes() { | |
| 109 assert(initialized && (value_offset > 0), "Must be initialized"); | |
| 110 return value_offset; | |
| 111 } | |
| 112 static int count_offset_in_bytes() { | |
| 113 assert(initialized && (count_offset > 0), "Must be initialized"); | |
| 114 return count_offset; | |
| 115 } | |
| 116 static int offset_offset_in_bytes() { | |
| 117 assert(initialized && (offset_offset > 0), "Must be initialized"); | |
| 118 return offset_offset; | |
| 119 } | |
| 120 static int hash_offset_in_bytes() { | |
| 121 assert(initialized && (hash_offset > 0), "Must be initialized"); | |
| 122 return hash_offset; | |
| 123 } | |
| 0 | 124 |
| 125 // Accessors | |
| 126 static typeArrayOop value(oop java_string) { | |
| 6057 | 127 assert(initialized && (value_offset > 0), "Must be initialized"); |
| 0 | 128 assert(is_instance(java_string), "must be java_string"); |
| 129 return (typeArrayOop) java_string->obj_field(value_offset); | |
| 130 } | |
| 131 static int offset(oop java_string) { | |
| 6057 | 132 assert(initialized, "Must be initialized"); |
| 0 | 133 assert(is_instance(java_string), "must be java_string"); |
| 6057 | 134 if (offset_offset > 0) { |
| 135 return java_string->int_field(offset_offset); | |
| 136 } else { | |
| 137 return 0; | |
| 138 } | |
| 0 | 139 } |
| 140 static int length(oop java_string) { | |
| 6057 | 141 assert(initialized, "Must be initialized"); |
| 0 | 142 assert(is_instance(java_string), "must be java_string"); |
| 6057 | 143 if (count_offset > 0) { |
| 144 return java_string->int_field(count_offset); | |
| 145 } else { | |
| 146 return ((typeArrayOop)java_string->obj_field(value_offset))->length(); | |
| 147 } | |
| 0 | 148 } |
| 149 static int utf8_length(oop java_string); | |
| 150 | |
| 151 // String converters | |
| 152 static char* as_utf8_string(oop java_string); | |
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153 static char* as_utf8_string(oop java_string, char* buf, int buflen); |
| 0 | 154 static char* as_utf8_string(oop java_string, int start, int len); |
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155 static char* as_platform_dependent_str(Handle java_string, TRAPS); |
| 0 | 156 static jchar* as_unicode_string(oop java_string, int& length); |
| 157 | |
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158 // Compute the hash value for a java.lang.String object which would |
| 6162 | 159 // contain the characters passed in. |
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160 // |
| 6162 | 161 // As the hash value used by the String object itself, in |
| 162 // String.hashCode(). This value is normally calculated in Java code | |
| 163 // in the String.hashCode method(), but is precomputed for String | |
| 164 // objects in the shared archive file. | |
| 165 // hash P(31) from Kernighan & Ritchie | |
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166 // |
| 6162 | 167 // For this reason, THIS ALGORITHM MUST MATCH String.toHash(). |
| 168 template <typename T> static unsigned int to_hash(T* s, int len) { | |
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169 unsigned int h = 0; |
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170 while (len-- > 0) { |
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171 h = 31*h + (unsigned int) *s; |
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172 s++; |
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173 } |
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174 return h; |
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175 } |
| 6162 | 176 static unsigned int to_hash(oop java_string); |
| 177 | |
| 178 // This is the string hash code used by the StringTable, which may be | |
| 179 // the same as String.toHash or an alternate hash code. | |
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180 static unsigned int hash_string(oop java_string); |
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181 |
| 0 | 182 static bool equals(oop java_string, jchar* chars, int len); |
| 183 | |
| 184 // Conversion between '.' and '/' formats | |
| 185 static Handle externalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '/', '.', THREAD); } | |
| 186 static Handle internalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '.', '/', THREAD); } | |
| 187 | |
| 188 // Conversion | |
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189 static Symbol* as_symbol(Handle java_string, TRAPS); |
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190 static Symbol* as_symbol_or_null(oop java_string); |
| 0 | 191 |
| 192 // Testers | |
| 193 static bool is_instance(oop obj) { | |
| 1142 | 194 return obj != NULL && obj->klass() == SystemDictionary::String_klass(); |
| 0 | 195 } |
| 196 | |
| 197 // Debugging | |
| 198 static void print(Handle java_string, outputStream* st); | |
| 199 friend class JavaClasses; | |
| 200 }; | |
| 201 | |
| 202 | |
| 203 // Interface to java.lang.Class objects | |
| 204 | |
| 3938 | 205 #define CLASS_INJECTED_FIELDS(macro) \ |
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206 macro(java_lang_Class, klass, intptr_signature, false) \ |
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207 macro(java_lang_Class, resolved_constructor, intptr_signature, false) \ |
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208 macro(java_lang_Class, array_klass, intptr_signature, false) \ |
| 3938 | 209 macro(java_lang_Class, oop_size, int_signature, false) \ |
| 210 macro(java_lang_Class, static_oop_field_count, int_signature, false) | |
| 211 | |
| 0 | 212 class java_lang_Class : AllStatic { |
| 3938 | 213 friend class VMStructs; |
| 214 | |
| 0 | 215 private: |
| 216 // The fake offsets are added by the class loader when java.lang.Class is loaded | |
| 217 | |
| 3938 | 218 static int _klass_offset; |
| 219 static int _resolved_constructor_offset; | |
| 220 static int _array_klass_offset; | |
| 0 | 221 |
| 3938 | 222 static int _oop_size_offset; |
| 223 static int _static_oop_field_count_offset; | |
| 0 | 224 |
| 225 static bool offsets_computed; | |
| 226 static int classRedefinedCount_offset; | |
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227 static GrowableArray<Klass*>* _fixup_mirror_list; |
| 0 | 228 |
| 229 public: | |
| 3938 | 230 static void compute_offsets(); |
| 231 | |
| 0 | 232 // Instance creation |
| 233 static oop create_mirror(KlassHandle k, TRAPS); | |
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234 static void fixup_mirror(KlassHandle k, TRAPS); |
| 0 | 235 static oop create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS); |
| 236 // Conversion | |
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237 static Klass* as_Klass(oop java_class); |
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238 static void set_klass(oop java_class, Klass* klass); |
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239 static BasicType as_BasicType(oop java_class, Klass** reference_klass = NULL); |
| 710 | 240 static BasicType as_BasicType(oop java_class, KlassHandle* reference_klass) { |
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241 Klass* refk_oop = NULL; |
| 710 | 242 BasicType result = as_BasicType(java_class, &refk_oop); |
| 243 (*reference_klass) = KlassHandle(refk_oop); | |
| 244 return result; | |
| 245 } | |
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246 static Symbol* as_signature(oop java_class, bool intern_if_not_found, TRAPS); |
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247 static void print_signature(oop java_class, outputStream *st); |
| 0 | 248 // Testing |
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249 static bool is_instance(oop obj) { |
| 1142 | 250 return obj != NULL && obj->klass() == SystemDictionary::Class_klass(); |
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251 } |
| 0 | 252 static bool is_primitive(oop java_class); |
| 253 static BasicType primitive_type(oop java_class); | |
| 254 static oop primitive_mirror(BasicType t); | |
| 255 // JVM_NewInstance support | |
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256 static Method* resolved_constructor(oop java_class); |
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257 static void set_resolved_constructor(oop java_class, Method* constructor); |
| 0 | 258 // JVM_NewArray support |
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259 static Klass* array_klass(oop java_class); |
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260 static void set_array_klass(oop java_class, Klass* klass); |
| 0 | 261 // compiler support for class operations |
| 3938 | 262 static int klass_offset_in_bytes() { return _klass_offset; } |
| 263 static int resolved_constructor_offset_in_bytes() { return _resolved_constructor_offset; } | |
| 264 static int array_klass_offset_in_bytes() { return _array_klass_offset; } | |
| 0 | 265 // Support for classRedefinedCount field |
| 266 static int classRedefinedCount(oop the_class_mirror); | |
| 267 static void set_classRedefinedCount(oop the_class_mirror, int value); | |
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268 |
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269 static int oop_size(oop java_class); |
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270 static void set_oop_size(oop java_class, int size); |
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271 static int static_oop_field_count(oop java_class); |
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272 static void set_static_oop_field_count(oop java_class, int size); |
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273 |
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274 static GrowableArray<Klass*>* fixup_mirror_list() { |
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275 return _fixup_mirror_list; |
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276 } |
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277 static void set_fixup_mirror_list(GrowableArray<Klass*>* v) { |
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278 _fixup_mirror_list = v; |
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279 } |
| 0 | 280 // Debugging |
| 281 friend class JavaClasses; | |
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282 friend class InstanceKlass; // verification code accesses offsets |
| 0 | 283 friend class ClassFileParser; // access to number_of_fake_fields |
| 284 }; | |
| 285 | |
| 286 // Interface to java.lang.Thread objects | |
| 287 | |
| 288 class java_lang_Thread : AllStatic { | |
| 289 private: | |
| 290 // Note that for this class the layout changed between JDK1.2 and JDK1.3, | |
| 291 // so we compute the offsets at startup rather than hard-wiring them. | |
| 292 static int _name_offset; | |
| 293 static int _group_offset; | |
| 294 static int _contextClassLoader_offset; | |
| 295 static int _inheritedAccessControlContext_offset; | |
| 296 static int _priority_offset; | |
| 297 static int _eetop_offset; | |
| 298 static int _daemon_offset; | |
| 299 static int _stillborn_offset; | |
| 300 static int _stackSize_offset; | |
| 301 static int _tid_offset; | |
| 302 static int _thread_status_offset; | |
| 303 static int _park_blocker_offset; | |
| 304 static int _park_event_offset ; | |
| 305 | |
| 306 static void compute_offsets(); | |
| 307 | |
| 308 public: | |
| 309 // Instance creation | |
| 310 static oop create(); | |
| 311 // Returns the JavaThread associated with the thread obj | |
| 312 static JavaThread* thread(oop java_thread); | |
| 313 // Set JavaThread for instance | |
| 314 static void set_thread(oop java_thread, JavaThread* thread); | |
| 315 // Name | |
| 316 static typeArrayOop name(oop java_thread); | |
| 317 static void set_name(oop java_thread, typeArrayOop name); | |
| 318 // Priority | |
| 319 static ThreadPriority priority(oop java_thread); | |
| 320 static void set_priority(oop java_thread, ThreadPriority priority); | |
| 321 // Thread group | |
| 322 static oop threadGroup(oop java_thread); | |
| 323 // Stillborn | |
| 324 static bool is_stillborn(oop java_thread); | |
| 325 static void set_stillborn(oop java_thread); | |
| 326 // Alive (NOTE: this is not really a field, but provides the correct | |
| 327 // definition without doing a Java call) | |
| 328 static bool is_alive(oop java_thread); | |
| 329 // Daemon | |
| 330 static bool is_daemon(oop java_thread); | |
| 331 static void set_daemon(oop java_thread); | |
| 332 // Context ClassLoader | |
| 333 static oop context_class_loader(oop java_thread); | |
| 334 // Control context | |
| 335 static oop inherited_access_control_context(oop java_thread); | |
| 336 // Stack size hint | |
| 337 static jlong stackSize(oop java_thread); | |
| 338 // Thread ID | |
| 339 static jlong thread_id(oop java_thread); | |
| 340 | |
| 341 // Blocker object responsible for thread parking | |
| 342 static oop park_blocker(oop java_thread); | |
| 343 | |
| 344 // Pointer to type-stable park handler, encoded as jlong. | |
| 345 // Should be set when apparently null | |
| 346 // For details, see unsafe.cpp Unsafe_Unpark | |
| 347 static jlong park_event(oop java_thread); | |
| 348 static bool set_park_event(oop java_thread, jlong ptr); | |
| 349 | |
| 350 // Java Thread Status for JVMTI and M&M use. | |
| 351 // This thread status info is saved in threadStatus field of | |
| 352 // java.lang.Thread java class. | |
| 353 enum ThreadStatus { | |
| 354 NEW = 0, | |
| 355 RUNNABLE = JVMTI_THREAD_STATE_ALIVE + // runnable / running | |
| 356 JVMTI_THREAD_STATE_RUNNABLE, | |
| 357 SLEEPING = JVMTI_THREAD_STATE_ALIVE + // Thread.sleep() | |
| 358 JVMTI_THREAD_STATE_WAITING + | |
| 359 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + | |
| 360 JVMTI_THREAD_STATE_SLEEPING, | |
| 361 IN_OBJECT_WAIT = JVMTI_THREAD_STATE_ALIVE + // Object.wait() | |
| 362 JVMTI_THREAD_STATE_WAITING + | |
| 363 JVMTI_THREAD_STATE_WAITING_INDEFINITELY + | |
| 364 JVMTI_THREAD_STATE_IN_OBJECT_WAIT, | |
| 365 IN_OBJECT_WAIT_TIMED = JVMTI_THREAD_STATE_ALIVE + // Object.wait(long) | |
| 366 JVMTI_THREAD_STATE_WAITING + | |
| 367 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + | |
| 368 JVMTI_THREAD_STATE_IN_OBJECT_WAIT, | |
| 369 PARKED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park() | |
| 370 JVMTI_THREAD_STATE_WAITING + | |
| 371 JVMTI_THREAD_STATE_WAITING_INDEFINITELY + | |
| 372 JVMTI_THREAD_STATE_PARKED, | |
| 373 PARKED_TIMED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park(long) | |
| 374 JVMTI_THREAD_STATE_WAITING + | |
| 375 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + | |
| 376 JVMTI_THREAD_STATE_PARKED, | |
| 377 BLOCKED_ON_MONITOR_ENTER = JVMTI_THREAD_STATE_ALIVE + // (re-)entering a synchronization block | |
| 378 JVMTI_THREAD_STATE_BLOCKED_ON_MONITOR_ENTER, | |
| 379 TERMINATED = JVMTI_THREAD_STATE_TERMINATED | |
| 380 }; | |
| 381 // Write thread status info to threadStatus field of java.lang.Thread. | |
| 382 static void set_thread_status(oop java_thread_oop, ThreadStatus status); | |
| 383 // Read thread status info from threadStatus field of java.lang.Thread. | |
| 384 static ThreadStatus get_thread_status(oop java_thread_oop); | |
| 385 | |
| 386 static const char* thread_status_name(oop java_thread_oop); | |
| 387 | |
| 388 // Debugging | |
| 389 friend class JavaClasses; | |
| 390 }; | |
| 391 | |
| 392 // Interface to java.lang.ThreadGroup objects | |
| 393 | |
| 394 class java_lang_ThreadGroup : AllStatic { | |
| 395 private: | |
| 396 static int _parent_offset; | |
| 397 static int _name_offset; | |
| 398 static int _threads_offset; | |
| 399 static int _groups_offset; | |
| 400 static int _maxPriority_offset; | |
| 401 static int _destroyed_offset; | |
| 402 static int _daemon_offset; | |
| 403 static int _vmAllowSuspension_offset; | |
| 404 static int _nthreads_offset; | |
| 405 static int _ngroups_offset; | |
| 406 | |
| 407 static void compute_offsets(); | |
| 408 | |
| 409 public: | |
| 410 // parent ThreadGroup | |
| 411 static oop parent(oop java_thread_group); | |
| 412 // name | |
| 413 static typeArrayOop name(oop java_thread_group); | |
| 414 // ("name as oop" accessor is not necessary) | |
| 415 // Number of threads in group | |
| 416 static int nthreads(oop java_thread_group); | |
| 417 // threads | |
| 418 static objArrayOop threads(oop java_thread_group); | |
| 419 // Number of threads in group | |
| 420 static int ngroups(oop java_thread_group); | |
| 421 // groups | |
| 422 static objArrayOop groups(oop java_thread_group); | |
| 423 // maxPriority in group | |
| 424 static ThreadPriority maxPriority(oop java_thread_group); | |
| 425 // Destroyed | |
| 426 static bool is_destroyed(oop java_thread_group); | |
| 427 // Daemon | |
| 428 static bool is_daemon(oop java_thread_group); | |
| 429 // vmAllowSuspension | |
| 430 static bool is_vmAllowSuspension(oop java_thread_group); | |
| 431 // Debugging | |
| 432 friend class JavaClasses; | |
| 433 }; | |
| 434 | |
| 435 | |
| 436 | |
| 437 // Interface to java.lang.Throwable objects | |
| 438 | |
| 439 class java_lang_Throwable: AllStatic { | |
| 440 friend class BacktraceBuilder; | |
| 441 | |
| 442 private: | |
| 443 // Offsets | |
| 444 enum { | |
| 445 hc_backtrace_offset = 0, | |
| 446 hc_detailMessage_offset = 1, | |
| 447 hc_cause_offset = 2, // New since 1.4 | |
| 448 hc_stackTrace_offset = 3 // New since 1.4 | |
| 449 }; | |
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450 enum { |
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451 hc_static_unassigned_stacktrace_offset = 0 // New since 1.7 |
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452 }; |
| 0 | 453 // Trace constants |
| 454 enum { | |
| 455 trace_methods_offset = 0, | |
| 456 trace_bcis_offset = 1, | |
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457 trace_mirrors_offset = 2, |
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458 trace_next_offset = 3, |
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459 trace_size = 4, |
| 0 | 460 trace_chunk_size = 32 |
| 461 }; | |
| 462 | |
| 463 static int backtrace_offset; | |
| 464 static int detailMessage_offset; | |
| 465 static int cause_offset; | |
| 466 static int stackTrace_offset; | |
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467 static int static_unassigned_stacktrace_offset; |
| 0 | 468 |
| 469 // Printing | |
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470 static char* print_stack_element_to_buffer(Method* method, int bci); |
| 0 | 471 static void print_to_stream(Handle stream, const char* str); |
| 472 // StackTrace (programmatic access, new since 1.4) | |
| 473 static void clear_stacktrace(oop throwable); | |
| 474 // No stack trace available | |
| 475 static const char* no_stack_trace_message(); | |
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476 // Stacktrace (post JDK 1.7.0 to allow immutability protocol to be followed) |
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477 static void set_stacktrace(oop throwable, oop st_element_array); |
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478 static oop unassigned_stacktrace(); |
| 0 | 479 |
| 480 public: | |
| 481 // Backtrace | |
| 482 static oop backtrace(oop throwable); | |
| 483 static void set_backtrace(oop throwable, oop value); | |
| 484 // Needed by JVMTI to filter out this internal field. | |
| 485 static int get_backtrace_offset() { return backtrace_offset;} | |
| 486 static int get_detailMessage_offset() { return detailMessage_offset;} | |
| 487 // Message | |
| 488 static oop message(oop throwable); | |
| 489 static oop message(Handle throwable); | |
| 490 static void set_message(oop throwable, oop value); | |
| 491 // Print stack trace stored in exception by call-back to Java | |
| 492 // Note: this is no longer used in Merlin, but we still suppport | |
| 493 // it for compatibility. | |
| 494 static void print_stack_trace(oop throwable, oop print_stream); | |
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495 static void print_stack_element(Handle stream, Method* method, int bci); |
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496 static void print_stack_element(outputStream *st, Method* method, int bci); |
| 0 | 497 static void print_stack_usage(Handle stream); |
| 498 | |
| 499 // Allocate space for backtrace (created but stack trace not filled in) | |
| 500 static void allocate_backtrace(Handle throwable, TRAPS); | |
| 501 // Fill in current stack trace for throwable with preallocated backtrace (no GC) | |
| 502 static void fill_in_stack_trace_of_preallocated_backtrace(Handle throwable); | |
| 503 // Fill in current stack trace, can cause GC | |
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504 static void fill_in_stack_trace(Handle throwable, methodHandle method, TRAPS); |
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505 static void fill_in_stack_trace(Handle throwable, methodHandle method = methodHandle()); |
| 0 | 506 // Programmatic access to stack trace |
| 507 static oop get_stack_trace_element(oop throwable, int index, TRAPS); | |
| 508 static int get_stack_trace_depth(oop throwable, TRAPS); | |
| 509 // Printing | |
| 510 static void print(oop throwable, outputStream* st); | |
| 511 static void print(Handle throwable, outputStream* st); | |
| 512 static void print_stack_trace(oop throwable, outputStream* st); | |
| 513 // Debugging | |
| 514 friend class JavaClasses; | |
| 515 }; | |
| 516 | |
| 517 | |
| 518 // Interface to java.lang.reflect.AccessibleObject objects | |
| 519 | |
| 520 class java_lang_reflect_AccessibleObject: AllStatic { | |
| 521 private: | |
| 522 // Note that to reduce dependencies on the JDK we compute these | |
| 523 // offsets at run-time. | |
| 524 static int override_offset; | |
| 525 | |
| 526 static void compute_offsets(); | |
| 527 | |
| 528 public: | |
| 529 // Accessors | |
| 530 static jboolean override(oop reflect); | |
| 531 static void set_override(oop reflect, jboolean value); | |
| 532 | |
| 533 // Debugging | |
| 534 friend class JavaClasses; | |
| 535 }; | |
| 536 | |
| 537 | |
| 538 // Interface to java.lang.reflect.Method objects | |
| 539 | |
| 540 class java_lang_reflect_Method : public java_lang_reflect_AccessibleObject { | |
| 541 private: | |
| 542 // Note that to reduce dependencies on the JDK we compute these | |
| 543 // offsets at run-time. | |
| 544 static int clazz_offset; | |
| 545 static int name_offset; | |
| 546 static int returnType_offset; | |
| 547 static int parameterTypes_offset; | |
| 548 static int exceptionTypes_offset; | |
| 549 static int slot_offset; | |
| 550 static int modifiers_offset; | |
| 551 static int signature_offset; | |
| 552 static int annotations_offset; | |
| 553 static int parameter_annotations_offset; | |
| 554 static int annotation_default_offset; | |
| 555 | |
| 556 static void compute_offsets(); | |
| 557 | |
| 558 public: | |
| 559 // Allocation | |
| 560 static Handle create(TRAPS); | |
| 561 | |
| 562 // Accessors | |
| 563 static oop clazz(oop reflect); | |
| 564 static void set_clazz(oop reflect, oop value); | |
| 565 | |
| 566 static oop name(oop method); | |
| 567 static void set_name(oop method, oop value); | |
| 568 | |
| 569 static oop return_type(oop method); | |
| 570 static void set_return_type(oop method, oop value); | |
| 571 | |
| 572 static oop parameter_types(oop method); | |
| 573 static void set_parameter_types(oop method, oop value); | |
| 574 | |
| 575 static oop exception_types(oop method); | |
| 576 static void set_exception_types(oop method, oop value); | |
| 577 | |
| 578 static int slot(oop reflect); | |
| 579 static void set_slot(oop reflect, int value); | |
| 580 | |
| 581 static int modifiers(oop method); | |
| 582 static void set_modifiers(oop method, int value); | |
| 583 | |
| 584 static bool has_signature_field(); | |
| 585 static oop signature(oop method); | |
| 586 static void set_signature(oop method, oop value); | |
| 587 | |
| 588 static bool has_annotations_field(); | |
| 589 static oop annotations(oop method); | |
| 590 static void set_annotations(oop method, oop value); | |
| 591 | |
| 592 static bool has_parameter_annotations_field(); | |
| 593 static oop parameter_annotations(oop method); | |
| 594 static void set_parameter_annotations(oop method, oop value); | |
| 595 | |
| 596 static bool has_annotation_default_field(); | |
| 597 static oop annotation_default(oop method); | |
| 598 static void set_annotation_default(oop method, oop value); | |
| 599 | |
| 600 // Debugging | |
| 601 friend class JavaClasses; | |
| 602 }; | |
| 603 | |
| 604 | |
| 605 // Interface to java.lang.reflect.Constructor objects | |
| 606 | |
| 607 class java_lang_reflect_Constructor : public java_lang_reflect_AccessibleObject { | |
| 608 private: | |
| 609 // Note that to reduce dependencies on the JDK we compute these | |
| 610 // offsets at run-time. | |
| 611 static int clazz_offset; | |
| 612 static int parameterTypes_offset; | |
| 613 static int exceptionTypes_offset; | |
| 614 static int slot_offset; | |
| 615 static int modifiers_offset; | |
| 616 static int signature_offset; | |
| 617 static int annotations_offset; | |
| 618 static int parameter_annotations_offset; | |
| 619 | |
| 620 static void compute_offsets(); | |
| 621 | |
| 622 public: | |
| 623 // Allocation | |
| 624 static Handle create(TRAPS); | |
| 625 | |
| 626 // Accessors | |
| 627 static oop clazz(oop reflect); | |
| 628 static void set_clazz(oop reflect, oop value); | |
| 629 | |
| 630 static oop parameter_types(oop constructor); | |
| 631 static void set_parameter_types(oop constructor, oop value); | |
| 632 | |
| 633 static oop exception_types(oop constructor); | |
| 634 static void set_exception_types(oop constructor, oop value); | |
| 635 | |
| 636 static int slot(oop reflect); | |
| 637 static void set_slot(oop reflect, int value); | |
| 638 | |
| 639 static int modifiers(oop constructor); | |
| 640 static void set_modifiers(oop constructor, int value); | |
| 641 | |
| 642 static bool has_signature_field(); | |
| 643 static oop signature(oop constructor); | |
| 644 static void set_signature(oop constructor, oop value); | |
| 645 | |
| 646 static bool has_annotations_field(); | |
| 647 static oop annotations(oop constructor); | |
| 648 static void set_annotations(oop constructor, oop value); | |
| 649 | |
| 650 static bool has_parameter_annotations_field(); | |
| 651 static oop parameter_annotations(oop method); | |
| 652 static void set_parameter_annotations(oop method, oop value); | |
| 653 | |
| 654 // Debugging | |
| 655 friend class JavaClasses; | |
| 656 }; | |
| 657 | |
| 658 | |
| 659 // Interface to java.lang.reflect.Field objects | |
| 660 | |
| 661 class java_lang_reflect_Field : public java_lang_reflect_AccessibleObject { | |
| 662 private: | |
| 663 // Note that to reduce dependencies on the JDK we compute these | |
| 664 // offsets at run-time. | |
| 665 static int clazz_offset; | |
| 666 static int name_offset; | |
| 667 static int type_offset; | |
| 668 static int slot_offset; | |
| 669 static int modifiers_offset; | |
| 670 static int signature_offset; | |
| 671 static int annotations_offset; | |
| 672 | |
| 673 static void compute_offsets(); | |
| 674 | |
| 675 public: | |
| 676 // Allocation | |
| 677 static Handle create(TRAPS); | |
| 678 | |
| 679 // Accessors | |
| 680 static oop clazz(oop reflect); | |
| 681 static void set_clazz(oop reflect, oop value); | |
| 682 | |
| 683 static oop name(oop field); | |
| 684 static void set_name(oop field, oop value); | |
| 685 | |
| 686 static oop type(oop field); | |
| 687 static void set_type(oop field, oop value); | |
| 688 | |
| 689 static int slot(oop reflect); | |
| 690 static void set_slot(oop reflect, int value); | |
| 691 | |
| 692 static int modifiers(oop field); | |
| 693 static void set_modifiers(oop field, int value); | |
| 694 | |
| 695 static bool has_signature_field(); | |
| 696 static oop signature(oop constructor); | |
| 697 static void set_signature(oop constructor, oop value); | |
| 698 | |
| 699 static bool has_annotations_field(); | |
| 700 static oop annotations(oop constructor); | |
| 701 static void set_annotations(oop constructor, oop value); | |
| 702 | |
| 703 static bool has_parameter_annotations_field(); | |
| 704 static oop parameter_annotations(oop method); | |
| 705 static void set_parameter_annotations(oop method, oop value); | |
| 706 | |
| 707 static bool has_annotation_default_field(); | |
| 708 static oop annotation_default(oop method); | |
| 709 static void set_annotation_default(oop method, oop value); | |
| 710 | |
| 711 // Debugging | |
| 712 friend class JavaClasses; | |
| 713 }; | |
| 714 | |
| 715 // Interface to sun.reflect.ConstantPool objects | |
| 716 class sun_reflect_ConstantPool { | |
| 717 private: | |
| 718 // Note that to reduce dependencies on the JDK we compute these | |
| 719 // offsets at run-time. | |
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720 static int _oop_offset; |
| 0 | 721 |
| 722 static void compute_offsets(); | |
| 723 | |
| 724 public: | |
| 725 // Allocation | |
| 726 static Handle create(TRAPS); | |
| 727 | |
| 728 // Accessors | |
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729 static void set_cp(oop reflect, ConstantPool* value); |
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730 static int oop_offset() { |
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731 return _oop_offset; |
| 0 | 732 } |
| 733 | |
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734 static ConstantPool* get_cp(oop reflect); |
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735 |
| 0 | 736 // Debugging |
| 737 friend class JavaClasses; | |
| 738 }; | |
| 739 | |
| 740 // Interface to sun.reflect.UnsafeStaticFieldAccessorImpl objects | |
| 741 class sun_reflect_UnsafeStaticFieldAccessorImpl { | |
| 742 private: | |
| 743 static int _base_offset; | |
| 744 static void compute_offsets(); | |
| 745 | |
| 746 public: | |
| 747 static int base_offset() { | |
| 748 return _base_offset; | |
| 749 } | |
| 750 | |
| 751 // Debugging | |
| 752 friend class JavaClasses; | |
| 753 }; | |
| 754 | |
| 755 // Interface to java.lang primitive type boxing objects: | |
| 756 // - java.lang.Boolean | |
| 757 // - java.lang.Character | |
| 758 // - java.lang.Float | |
| 759 // - java.lang.Double | |
| 760 // - java.lang.Byte | |
| 761 // - java.lang.Short | |
| 762 // - java.lang.Integer | |
| 763 // - java.lang.Long | |
| 764 | |
| 765 // This could be separated out into 8 individual classes. | |
| 766 | |
| 767 class java_lang_boxing_object: AllStatic { | |
| 768 private: | |
| 769 enum { | |
| 770 hc_value_offset = 0 | |
| 771 }; | |
| 772 static int value_offset; | |
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773 static int long_value_offset; |
| 0 | 774 |
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775 static oop initialize_and_allocate(BasicType type, TRAPS); |
| 0 | 776 public: |
| 777 // Allocation. Returns a boxed value, or NULL for invalid type. | |
| 778 static oop create(BasicType type, jvalue* value, TRAPS); | |
| 779 // Accessors. Returns the basic type being boxed, or T_ILLEGAL for invalid oop. | |
| 780 static BasicType get_value(oop box, jvalue* value); | |
| 781 static BasicType set_value(oop box, jvalue* value); | |
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782 static BasicType basic_type(oop box); |
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783 static bool is_instance(oop box) { return basic_type(box) != T_ILLEGAL; } |
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784 static bool is_instance(oop box, BasicType type) { return basic_type(box) == type; } |
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785 static void print(oop box, outputStream* st) { jvalue value; print(get_value(box, &value), &value, st); } |
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786 static void print(BasicType type, jvalue* value, outputStream* st); |
| 0 | 787 |
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788 static int value_offset_in_bytes(BasicType type) { |
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789 return ( type == T_LONG || type == T_DOUBLE ) ? long_value_offset : |
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790 value_offset; |
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791 } |
| 0 | 792 |
| 793 // Debugging | |
| 794 friend class JavaClasses; | |
| 795 }; | |
| 796 | |
| 797 | |
| 798 | |
| 799 // Interface to java.lang.ref.Reference objects | |
| 800 | |
| 801 class java_lang_ref_Reference: AllStatic { | |
| 802 public: | |
| 803 enum { | |
| 804 hc_referent_offset = 0, | |
| 805 hc_queue_offset = 1, | |
| 806 hc_next_offset = 2, | |
| 807 hc_discovered_offset = 3 // Is not last, see SoftRefs. | |
| 808 }; | |
| 809 enum { | |
| 810 hc_static_lock_offset = 0, | |
| 811 hc_static_pending_offset = 1 | |
| 812 }; | |
| 813 | |
| 814 static int referent_offset; | |
| 815 static int queue_offset; | |
| 816 static int next_offset; | |
| 817 static int discovered_offset; | |
| 818 static int static_lock_offset; | |
| 819 static int static_pending_offset; | |
| 820 static int number_of_fake_oop_fields; | |
| 821 | |
| 822 // Accessors | |
|
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823 static oop referent(oop ref) { |
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824 return ref->obj_field(referent_offset); |
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825 } |
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826 static void set_referent(oop ref, oop value) { |
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827 ref->obj_field_put(referent_offset, value); |
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828 } |
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829 static void set_referent_raw(oop ref, oop value) { |
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830 ref->obj_field_put_raw(referent_offset, value); |
|
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831 } |
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832 static HeapWord* referent_addr(oop ref) { |
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833 return ref->obj_field_addr<HeapWord>(referent_offset); |
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834 } |
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835 static oop next(oop ref) { |
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836 return ref->obj_field(next_offset); |
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837 } |
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838 static void set_next(oop ref, oop value) { |
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839 ref->obj_field_put(next_offset, value); |
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840 } |
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841 static void set_next_raw(oop ref, oop value) { |
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842 ref->obj_field_put_raw(next_offset, value); |
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843 } |
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844 static HeapWord* next_addr(oop ref) { |
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845 return ref->obj_field_addr<HeapWord>(next_offset); |
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846 } |
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847 static oop discovered(oop ref) { |
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848 return ref->obj_field(discovered_offset); |
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849 } |
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850 static void set_discovered(oop ref, oop value) { |
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851 ref->obj_field_put(discovered_offset, value); |
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852 } |
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853 static void set_discovered_raw(oop ref, oop value) { |
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854 ref->obj_field_put_raw(discovered_offset, value); |
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855 } |
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856 static HeapWord* discovered_addr(oop ref) { |
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857 return ref->obj_field_addr<HeapWord>(discovered_offset); |
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858 } |
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859 // Accessors for statics |
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860 static oop pending_list_lock(); |
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861 static oop pending_list(); |
| 0 | 862 |
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863 static HeapWord* pending_list_lock_addr(); |
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864 static HeapWord* pending_list_addr(); |
| 0 | 865 }; |
| 866 | |
| 867 | |
| 868 // Interface to java.lang.ref.SoftReference objects | |
| 869 | |
| 870 class java_lang_ref_SoftReference: public java_lang_ref_Reference { | |
| 871 public: | |
| 872 enum { | |
| 873 // The timestamp is a long field and may need to be adjusted for alignment. | |
|
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874 hc_timestamp_offset = hc_discovered_offset + 1 |
| 0 | 875 }; |
| 876 enum { | |
| 877 hc_static_clock_offset = 0 | |
| 878 }; | |
| 879 | |
| 880 static int timestamp_offset; | |
| 881 static int static_clock_offset; | |
| 882 | |
| 883 // Accessors | |
| 884 static jlong timestamp(oop ref); | |
| 885 | |
| 886 // Accessors for statics | |
| 887 static jlong clock(); | |
| 888 static void set_clock(jlong value); | |
| 889 }; | |
| 890 | |
| 891 | |
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892 // Interface to java.lang.invoke.MethodHandle objects |
| 710 | 893 |
| 894 class MethodHandleEntry; | |
| 895 | |
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896 class java_lang_invoke_MethodHandle: AllStatic { |
| 710 | 897 friend class JavaClasses; |
| 898 | |
| 899 private: | |
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900 static int _type_offset; // the MethodType of this MH |
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901 static int _form_offset; // the LambdaForm of this MH |
| 710 | 902 |
| 903 static void compute_offsets(); | |
| 904 | |
| 905 public: | |
| 906 // Accessors | |
| 907 static oop type(oop mh); | |
| 908 static void set_type(oop mh, oop mtype); | |
| 909 | |
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910 static oop form(oop mh); |
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911 static void set_form(oop mh, oop lform); |
| 710 | 912 |
| 913 // Testers | |
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914 static bool is_subclass(Klass* klass) { |
| 710 | 915 return Klass::cast(klass)->is_subclass_of(SystemDictionary::MethodHandle_klass()); |
| 916 } | |
| 917 static bool is_instance(oop obj) { | |
| 918 return obj != NULL && is_subclass(obj->klass()); | |
| 919 } | |
| 920 | |
| 921 // Accessors for code generation: | |
| 922 static int type_offset_in_bytes() { return _type_offset; } | |
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923 static int form_offset_in_bytes() { return _form_offset; } |
| 710 | 924 }; |
| 925 | |
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926 // Interface to java.lang.invoke.LambdaForm objects |
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927 // (These are a private interface for managing adapter code generation.) |
| 3938 | 928 |
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929 class java_lang_invoke_LambdaForm: AllStatic { |
| 710 | 930 friend class JavaClasses; |
| 931 | |
| 932 private: | |
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933 static int _vmentry_offset; // type is MemberName |
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934 |
| 710 | 935 static void compute_offsets(); |
| 936 | |
| 937 public: | |
| 938 // Accessors | |
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939 static oop vmentry(oop lform); |
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940 static void set_vmentry(oop lform, oop invoker); |
| 710 | 941 |
| 942 // Testers | |
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943 static bool is_subclass(Klass* klass) { |
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944 return SystemDictionary::LambdaForm_klass() != NULL && |
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945 Klass::cast(klass)->is_subclass_of(SystemDictionary::LambdaForm_klass()); |
| 710 | 946 } |
| 947 static bool is_instance(oop obj) { | |
| 948 return obj != NULL && is_subclass(obj->klass()); | |
| 949 } | |
| 950 | |
| 951 // Accessors for code generation: | |
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952 static int vmentry_offset_in_bytes() { return _vmentry_offset; } |
| 710 | 953 }; |
| 954 | |
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955 |
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956 // Interface to java.lang.invoke.MemberName objects |
| 710 | 957 // (These are a private interface for Java code to query the class hierarchy.) |
| 958 | |
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959 #define MEMBERNAME_INJECTED_FIELDS(macro) \ |
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960 macro(java_lang_invoke_MemberName, vmloader, object_signature, false) \ |
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961 macro(java_lang_invoke_MemberName, vmindex, intptr_signature, false) \ |
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962 macro(java_lang_invoke_MemberName, vmtarget, intptr_signature, false) |
| 3938 | 963 |
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964 class java_lang_invoke_MemberName: AllStatic { |
| 710 | 965 friend class JavaClasses; |
| 966 | |
| 967 private: | |
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968 // From java.lang.invoke.MemberName: |
| 710 | 969 // private Class<?> clazz; // class in which the method is defined |
| 970 // private String name; // may be null if not yet materialized | |
| 971 // private Object type; // may be null if not yet materialized | |
| 972 // private int flags; // modifier bits; see reflect.Modifier | |
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973 // private intptr vmtarget; // VM-specific target value |
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974 // private intptr_t vmindex; // member index within class or interface |
| 710 | 975 static int _clazz_offset; |
| 976 static int _name_offset; | |
| 977 static int _type_offset; | |
| 978 static int _flags_offset; | |
| 979 static int _vmtarget_offset; | |
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980 static int _vmloader_offset; |
| 710 | 981 static int _vmindex_offset; |
| 982 | |
| 983 static void compute_offsets(); | |
| 984 | |
| 985 public: | |
| 986 // Accessors | |
| 987 static oop clazz(oop mname); | |
| 988 static void set_clazz(oop mname, oop clazz); | |
| 989 | |
| 990 static oop type(oop mname); | |
| 991 static void set_type(oop mname, oop type); | |
| 992 | |
| 993 static oop name(oop mname); | |
| 994 static void set_name(oop mname, oop name); | |
| 995 | |
| 996 static int flags(oop mname); | |
| 997 static void set_flags(oop mname, int flags); | |
| 998 | |
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999 static Metadata* vmtarget(oop mname); |
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1000 static void set_vmtarget(oop mname, Metadata* target); |
| 710 | 1001 |
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1002 static intptr_t vmindex(oop mname); |
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1003 static void set_vmindex(oop mname, intptr_t index); |
| 710 | 1004 |
| 1005 // Testers | |
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1006 static bool is_subclass(Klass* klass) { |
| 710 | 1007 return Klass::cast(klass)->is_subclass_of(SystemDictionary::MemberName_klass()); |
| 1008 } | |
| 1009 static bool is_instance(oop obj) { | |
| 1010 return obj != NULL && is_subclass(obj->klass()); | |
| 1011 } | |
| 1012 | |
| 1013 // Relevant integer codes (keep these in synch. with MethodHandleNatives.Constants): | |
| 1014 enum { | |
| 1015 MN_IS_METHOD = 0x00010000, // method (not constructor) | |
| 1016 MN_IS_CONSTRUCTOR = 0x00020000, // constructor | |
| 1017 MN_IS_FIELD = 0x00040000, // field | |
| 1018 MN_IS_TYPE = 0x00080000, // nested type | |
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1019 MN_REFERENCE_KIND_SHIFT = 24, // refKind |
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1020 MN_REFERENCE_KIND_MASK = 0x0F000000 >> MN_REFERENCE_KIND_SHIFT, |
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1021 // The SEARCH_* bits are not for MN.flags but for the matchFlags argument of MHN.getMembers: |
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1022 MN_SEARCH_SUPERCLASSES = 0x00100000, // walk super classes |
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1023 MN_SEARCH_INTERFACES = 0x00200000 // walk implemented interfaces |
| 710 | 1024 }; |
| 1025 | |
| 1026 // Accessors for code generation: | |
| 1027 static int clazz_offset_in_bytes() { return _clazz_offset; } | |
| 1028 static int type_offset_in_bytes() { return _type_offset; } | |
| 1029 static int name_offset_in_bytes() { return _name_offset; } | |
| 1030 static int flags_offset_in_bytes() { return _flags_offset; } | |
| 1031 static int vmtarget_offset_in_bytes() { return _vmtarget_offset; } | |
| 1032 static int vmindex_offset_in_bytes() { return _vmindex_offset; } | |
| 1033 }; | |
| 1034 | |
| 1035 | |
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1036 // Interface to java.lang.invoke.MethodType objects |
| 710 | 1037 |
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1038 class java_lang_invoke_MethodType: AllStatic { |
| 710 | 1039 friend class JavaClasses; |
| 1040 | |
| 1041 private: | |
| 1042 static int _rtype_offset; | |
| 1043 static int _ptypes_offset; | |
| 1044 | |
| 1045 static void compute_offsets(); | |
| 1046 | |
| 1047 public: | |
| 1048 // Accessors | |
| 1049 static oop rtype(oop mt); | |
| 1050 static objArrayOop ptypes(oop mt); | |
| 1051 | |
| 1052 static oop ptype(oop mt, int index); | |
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1053 static int ptype_count(oop mt); |
| 710 | 1054 |
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1055 static int ptype_slot_count(oop mt); // extra counts for long/double |
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1056 static int rtype_slot_count(oop mt); // extra counts for long/double |
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1057 |
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1058 static Symbol* as_signature(oop mt, bool intern_if_not_found, TRAPS); |
| 710 | 1059 static void print_signature(oop mt, outputStream* st); |
| 1060 | |
| 1061 static bool is_instance(oop obj) { | |
| 1062 return obj != NULL && obj->klass() == SystemDictionary::MethodType_klass(); | |
| 1063 } | |
| 1064 | |
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1065 static bool equals(oop mt1, oop mt2); |
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1066 |
| 710 | 1067 // Accessors for code generation: |
| 1068 static int rtype_offset_in_bytes() { return _rtype_offset; } | |
| 1069 static int ptypes_offset_in_bytes() { return _ptypes_offset; } | |
| 1070 }; | |
| 1071 | |
| 1072 | |
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1073 // Interface to java.lang.invoke.CallSite objects |
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1074 |
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1075 class java_lang_invoke_CallSite: AllStatic { |
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1076 friend class JavaClasses; |
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1077 |
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1078 private: |
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1079 static int _target_offset; |
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1080 |
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1081 static void compute_offsets(); |
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1082 |
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1083 public: |
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1084 // Accessors |
|
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1085 static oop target( oop site) { return site->obj_field( _target_offset); } |
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1086 static void set_target( oop site, oop target) { site->obj_field_put( _target_offset, target); } |
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1087 |
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1088 static volatile oop target_volatile(oop site) { return site->obj_field_volatile( _target_offset); } |
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1089 static void set_target_volatile(oop site, oop target) { site->obj_field_put_volatile(_target_offset, target); } |
|
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1090 |
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1091 // Testers |
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1092 static bool is_subclass(Klass* klass) { |
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1093 return Klass::cast(klass)->is_subclass_of(SystemDictionary::CallSite_klass()); |
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1094 } |
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1095 static bool is_instance(oop obj) { |
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1096 return obj != NULL && is_subclass(obj->klass()); |
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1097 } |
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1098 |
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1099 // Accessors for code generation: |
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1100 static int target_offset_in_bytes() { return _target_offset; } |
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1101 }; |
| 710 | 1102 |
| 1103 | |
| 0 | 1104 // Interface to java.security.AccessControlContext objects |
| 1105 | |
| 1106 class java_security_AccessControlContext: AllStatic { | |
| 1107 private: | |
| 1108 // Note that for this class the layout changed between JDK1.2 and JDK1.3, | |
| 1109 // so we compute the offsets at startup rather than hard-wiring them. | |
| 1110 static int _context_offset; | |
| 1111 static int _privilegedContext_offset; | |
| 1112 static int _isPrivileged_offset; | |
| 1113 | |
| 1114 static void compute_offsets(); | |
| 1115 public: | |
| 1116 static oop create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS); | |
| 1117 | |
| 1118 // Debugging/initialization | |
| 1119 friend class JavaClasses; | |
| 1120 }; | |
| 1121 | |
| 1122 | |
| 1123 // Interface to java.lang.ClassLoader objects | |
| 1124 | |
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1125 #define CLASSLOADER_INJECTED_FIELDS(macro) \ |
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1126 macro(java_lang_ClassLoader, loader_data, intptr_signature, false) \ |
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1127 macro(java_lang_ClassLoader, dependencies, object_signature, false) |
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1128 |
| 0 | 1129 class java_lang_ClassLoader : AllStatic { |
| 1130 private: | |
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1131 // The fake offsets are added by the class loader when java.lang.Class is loaded |
| 0 | 1132 enum { |
| 1133 hc_parent_offset = 0 | |
| 1134 }; | |
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1135 static int _loader_data_offset; |
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1136 static int _dependencies_offset; |
| 3938 | 1137 static bool offsets_computed; |
| 0 | 1138 static int parent_offset; |
| 3938 | 1139 static int parallelCapable_offset; |
| 1140 | |
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1141 public: |
| 3938 | 1142 static void compute_offsets(); |
| 0 | 1143 |
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1144 static ClassLoaderData** loader_data_addr(oop loader); |
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1145 static ClassLoaderData* loader_data(oop loader); |
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1146 |
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1147 static oop dependencies(oop loader); |
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1148 static HeapWord* dependencies_addr(oop loader); |
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1149 |
| 0 | 1150 static oop parent(oop loader); |
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1151 static bool isAncestor(oop loader, oop cl); |
| 0 | 1152 |
| 3938 | 1153 // Support for parallelCapable field |
| 1154 static bool parallelCapable(oop the_class_mirror); | |
| 1155 | |
| 0 | 1156 static bool is_trusted_loader(oop loader); |
| 1157 | |
| 1158 // Fix for 4474172 | |
| 1159 static oop non_reflection_class_loader(oop loader); | |
| 1160 | |
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1161 // Testers |
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1162 static bool is_subclass(Klass* klass) { |
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1163 return Klass::cast(klass)->is_subclass_of(SystemDictionary::ClassLoader_klass()); |
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1164 } |
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1165 static bool is_instance(oop obj) { |
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1166 return obj != NULL && is_subclass(obj->klass()); |
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1167 } |
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1168 |
| 0 | 1169 // Debugging |
| 1170 friend class JavaClasses; | |
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1171 friend class ClassFileParser; // access to number_of_fake_fields |
| 0 | 1172 }; |
| 1173 | |
| 1174 | |
| 1175 // Interface to java.lang.System objects | |
| 1176 | |
| 1177 class java_lang_System : AllStatic { | |
| 1178 private: | |
| 1179 enum { | |
| 1180 hc_static_in_offset = 0, | |
| 1181 hc_static_out_offset = 1, | |
| 1182 hc_static_err_offset = 2 | |
| 1183 }; | |
| 1184 | |
| 1185 static int static_in_offset; | |
| 1186 static int static_out_offset; | |
| 1187 static int static_err_offset; | |
| 1188 | |
| 1189 public: | |
| 1190 static int in_offset_in_bytes(); | |
| 1191 static int out_offset_in_bytes(); | |
| 1192 static int err_offset_in_bytes(); | |
| 1193 | |
| 1194 // Debugging | |
| 1195 friend class JavaClasses; | |
| 1196 }; | |
| 1197 | |
| 1198 | |
| 1199 // Interface to java.lang.StackTraceElement objects | |
| 1200 | |
| 1201 class java_lang_StackTraceElement: AllStatic { | |
| 1202 private: | |
| 1203 enum { | |
| 1204 hc_declaringClass_offset = 0, | |
| 1205 hc_methodName_offset = 1, | |
| 1206 hc_fileName_offset = 2, | |
| 1207 hc_lineNumber_offset = 3 | |
| 1208 }; | |
| 1209 | |
| 1210 static int declaringClass_offset; | |
| 1211 static int methodName_offset; | |
| 1212 static int fileName_offset; | |
| 1213 static int lineNumber_offset; | |
| 1214 | |
| 1215 public: | |
| 1216 // Setters | |
| 1217 static void set_declaringClass(oop element, oop value); | |
| 1218 static void set_methodName(oop element, oop value); | |
| 1219 static void set_fileName(oop element, oop value); | |
| 1220 static void set_lineNumber(oop element, int value); | |
| 1221 | |
| 1222 // Create an instance of StackTraceElement | |
| 1223 static oop create(methodHandle m, int bci, TRAPS); | |
| 1224 | |
| 1225 // Debugging | |
| 1226 friend class JavaClasses; | |
| 1227 }; | |
| 1228 | |
| 1229 | |
| 1230 // Interface to java.lang.AssertionStatusDirectives objects | |
| 1231 | |
| 1232 class java_lang_AssertionStatusDirectives: AllStatic { | |
| 1233 private: | |
| 1234 enum { | |
| 1235 hc_classes_offset, | |
| 1236 hc_classEnabled_offset, | |
| 1237 hc_packages_offset, | |
| 1238 hc_packageEnabled_offset, | |
| 1239 hc_deflt_offset | |
| 1240 }; | |
| 1241 | |
| 1242 static int classes_offset; | |
| 1243 static int classEnabled_offset; | |
| 1244 static int packages_offset; | |
| 1245 static int packageEnabled_offset; | |
| 1246 static int deflt_offset; | |
| 1247 | |
| 1248 public: | |
| 1249 // Setters | |
| 1250 static void set_classes(oop obj, oop val); | |
| 1251 static void set_classEnabled(oop obj, oop val); | |
| 1252 static void set_packages(oop obj, oop val); | |
| 1253 static void set_packageEnabled(oop obj, oop val); | |
| 1254 static void set_deflt(oop obj, bool val); | |
| 1255 // Debugging | |
| 1256 friend class JavaClasses; | |
| 1257 }; | |
| 1258 | |
| 1259 | |
| 1260 class java_nio_Buffer: AllStatic { | |
| 1261 private: | |
| 1262 static int _limit_offset; | |
| 1263 | |
| 1264 public: | |
| 1265 static int limit_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 | |
| 3938 | 1277 // Use to declare fields that need to be injected into Java classes |
| 1278 // for the JVM to use. The name_index and signature_index are | |
| 1279 // declared in vmSymbols. The may_be_java flag is used to declare | |
| 1280 // fields that might already exist in Java but should be injected if | |
| 1281 // they don't. Otherwise the field is unconditionally injected and | |
| 1282 // the JVM uses the injected one. This is to ensure that name | |
| 1283 // collisions don't occur. In general may_be_java should be false | |
| 1284 // unless there's a good reason. | |
| 1285 | |
| 1286 class InjectedField { | |
| 1287 public: | |
| 1288 const SystemDictionary::WKID klass_id; | |
| 1289 const vmSymbols::SID name_index; | |
| 1290 const vmSymbols::SID signature_index; | |
| 1291 const bool may_be_java; | |
| 1292 | |
| 1293 | |
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1294 Klass* klass() const { return SystemDictionary::well_known_klass(klass_id); } |
| 3938 | 1295 Symbol* name() const { return lookup_symbol(name_index); } |
| 1296 Symbol* signature() const { return lookup_symbol(signature_index); } | |
| 1297 | |
| 1298 int compute_offset(); | |
| 1299 | |
| 1300 // Find the Symbol for this index | |
| 1301 static Symbol* lookup_symbol(int symbol_index) { | |
| 1302 return vmSymbols::symbol_at((vmSymbols::SID)symbol_index); | |
| 1303 } | |
| 1304 }; | |
| 1305 | |
| 1306 #define DECLARE_INJECTED_FIELD_ENUM(klass, name, signature, may_be_java) \ | |
| 1307 klass##_##name##_enum, | |
| 1308 | |
| 1309 #define ALL_INJECTED_FIELDS(macro) \ | |
| 1310 CLASS_INJECTED_FIELDS(macro) \ | |
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1311 CLASSLOADER_INJECTED_FIELDS(macro) \ |
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1312 MEMBERNAME_INJECTED_FIELDS(macro) |
| 3938 | 1313 |
| 0 | 1314 // Interface to hard-coded offset checking |
| 1315 | |
| 1316 class JavaClasses : AllStatic { | |
| 1317 private: | |
| 3938 | 1318 |
| 1319 static InjectedField _injected_fields[]; | |
| 1320 | |
| 0 | 1321 static bool check_offset(const char *klass_name, int offset, const char *field_name, const char* field_sig) PRODUCT_RETURN0; |
| 1322 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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1323 static bool check_constant(const char *klass_name, int constant, const char *field_name, const char* field_sig) PRODUCT_RETURN0; |
| 3938 | 1324 |
| 0 | 1325 public: |
| 3938 | 1326 enum InjectedFieldID { |
| 1327 ALL_INJECTED_FIELDS(DECLARE_INJECTED_FIELD_ENUM) | |
| 1328 MAX_enum | |
| 1329 }; | |
| 1330 | |
| 1331 static int compute_injected_offset(InjectedFieldID id); | |
| 1332 | |
| 0 | 1333 static void compute_hard_coded_offsets(); |
| 1334 static void compute_offsets(); | |
| 1335 static void check_offsets() PRODUCT_RETURN; | |
| 3938 | 1336 |
| 1337 static InjectedField* get_injected(Symbol* class_name, int* field_count); | |
| 0 | 1338 }; |
| 1972 | 1339 |
| 3938 | 1340 #undef DECLARE_INJECTED_FIELD_ENUM |
| 1341 | |
| 1972 | 1342 #endif // SHARE_VM_CLASSFILE_JAVACLASSES_HPP |