Mercurial > hg > graal-compiler
annotate src/share/vm/classfile/javaClasses.hpp @ 10133:6337ca4dcad8
8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
Summary: Lazily create and maintain the MemberNameTable to be able to update MemberName's
Reviewed-by: coleenp, jrose, dholmes
Contributed-by: serguei.spitsyn@oracle.com
| author | sspitsyn |
|---|---|
| date | Sat, 20 Apr 2013 04:07:08 -0700 |
| parents | 16885e702c88 |
| children | f258c5828eb8 4b52137b07c9 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_CLASSFILE_JAVACLASSES_HPP |
| 26 #define SHARE_VM_CLASSFILE_JAVACLASSES_HPP | |
| 27 | |
| 28 #include "classfile/systemDictionary.hpp" | |
| 29 #include "jvmtifiles/jvmti.h" | |
| 30 #include "oops/oop.hpp" | |
| 31 #include "runtime/os.hpp" | |
| 32 #include "utilities/utf8.hpp" | |
| 33 | |
| 0 | 34 // Interface for manipulating the basic Java classes. |
| 35 // | |
| 36 // All dependencies on layout of actual Java classes should be kept here. | |
| 37 // If the layout of any of the classes above changes the offsets must be adjusted. | |
| 38 // | |
| 39 // For most classes we hardwire the offsets for performance reasons. In certain | |
| 40 // cases (e.g. java.security.AccessControlContext) we compute the offsets at | |
| 41 // startup since the layout here differs between JDK1.2 and JDK1.3. | |
| 42 // | |
| 43 // Note that fields (static and non-static) are arranged with oops before non-oops | |
| 44 // on a per class basis. The offsets below have to reflect this ordering. | |
| 45 // | |
| 46 // When editing the layouts please update the check_offset verification code | |
| 47 // correspondingly. The names in the enums must be identical to the actual field | |
| 48 // names in order for the verification code to work. | |
| 49 | |
| 50 | |
| 51 // Interface to java.lang.String objects | |
| 52 | |
| 53 class java_lang_String : AllStatic { | |
| 54 private: | |
| 55 static int value_offset; | |
| 56 static int offset_offset; | |
| 57 static int count_offset; | |
| 58 static int hash_offset; | |
| 59 | |
| 6057 | 60 static bool initialized; |
| 61 | |
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62 static Handle basic_create(int length, TRAPS); |
| 0 | 63 |
| 6057 | 64 static void set_value( oop string, typeArrayOop buffer) { |
| 65 assert(initialized, "Must be initialized"); | |
| 66 string->obj_field_put(value_offset, (oop)buffer); | |
| 67 } | |
| 68 static void set_offset(oop string, int offset) { | |
| 69 assert(initialized, "Must be initialized"); | |
| 70 if (offset_offset > 0) { | |
| 71 string->int_field_put(offset_offset, offset); | |
| 72 } | |
| 73 } | |
| 74 static void set_count( oop string, int count) { | |
| 75 assert(initialized, "Must be initialized"); | |
| 76 if (count_offset > 0) { | |
| 77 string->int_field_put(count_offset, count); | |
| 78 } | |
| 79 } | |
| 0 | 80 |
| 81 public: | |
| 6057 | 82 static void compute_offsets(); |
| 83 | |
| 0 | 84 // Instance creation |
| 85 static Handle create_from_unicode(jchar* unicode, int len, TRAPS); | |
| 86 static oop create_oop_from_unicode(jchar* unicode, int len, TRAPS); | |
| 87 static Handle create_from_str(const char* utf8_str, TRAPS); | |
| 88 static oop create_oop_from_str(const char* utf8_str, TRAPS); | |
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89 static Handle create_from_symbol(Symbol* symbol, TRAPS); |
| 0 | 90 static Handle create_from_platform_dependent_str(const char* str, TRAPS); |
| 91 static Handle char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS); | |
| 92 | |
| 6057 | 93 static bool has_offset_field() { |
| 94 assert(initialized, "Must be initialized"); | |
| 95 return (offset_offset > 0); | |
| 96 } | |
| 97 | |
| 98 static bool has_count_field() { | |
| 99 assert(initialized, "Must be initialized"); | |
| 100 return (count_offset > 0); | |
| 101 } | |
| 102 | |
| 103 static bool has_hash_field() { | |
| 104 assert(initialized, "Must be initialized"); | |
| 105 return (hash_offset > 0); | |
| 106 } | |
| 107 | |
| 108 static int value_offset_in_bytes() { | |
| 109 assert(initialized && (value_offset > 0), "Must be initialized"); | |
| 110 return value_offset; | |
| 111 } | |
| 112 static int count_offset_in_bytes() { | |
| 113 assert(initialized && (count_offset > 0), "Must be initialized"); | |
| 114 return count_offset; | |
| 115 } | |
| 116 static int offset_offset_in_bytes() { | |
| 117 assert(initialized && (offset_offset > 0), "Must be initialized"); | |
| 118 return offset_offset; | |
| 119 } | |
| 120 static int hash_offset_in_bytes() { | |
| 121 assert(initialized && (hash_offset > 0), "Must be initialized"); | |
| 122 return hash_offset; | |
| 123 } | |
| 0 | 124 |
| 125 // Accessors | |
| 126 static typeArrayOop value(oop java_string) { | |
| 6057 | 127 assert(initialized && (value_offset > 0), "Must be initialized"); |
| 0 | 128 assert(is_instance(java_string), "must be java_string"); |
| 129 return (typeArrayOop) java_string->obj_field(value_offset); | |
| 130 } | |
| 131 static int offset(oop java_string) { | |
| 6057 | 132 assert(initialized, "Must be initialized"); |
| 0 | 133 assert(is_instance(java_string), "must be java_string"); |
| 6057 | 134 if (offset_offset > 0) { |
| 135 return java_string->int_field(offset_offset); | |
| 136 } else { | |
| 137 return 0; | |
| 138 } | |
| 0 | 139 } |
| 140 static int length(oop java_string) { | |
| 6057 | 141 assert(initialized, "Must be initialized"); |
| 0 | 142 assert(is_instance(java_string), "must be java_string"); |
| 6057 | 143 if (count_offset > 0) { |
| 144 return java_string->int_field(count_offset); | |
| 145 } else { | |
| 146 return ((typeArrayOop)java_string->obj_field(value_offset))->length(); | |
| 147 } | |
| 0 | 148 } |
| 149 static int utf8_length(oop java_string); | |
| 150 | |
| 151 // String converters | |
| 152 static char* as_utf8_string(oop java_string); | |
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153 static char* as_utf8_string(oop java_string, char* buf, int buflen); |
| 0 | 154 static char* as_utf8_string(oop java_string, int start, int len); |
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155 static char* as_platform_dependent_str(Handle java_string, TRAPS); |
| 0 | 156 static jchar* as_unicode_string(oop java_string, int& length); |
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157 // produce an ascii string with all other values quoted using \u#### |
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158 static char* as_quoted_ascii(oop java_string); |
| 0 | 159 |
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160 // Compute the hash value for a java.lang.String object which would |
| 6162 | 161 // contain the characters passed in. |
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162 // |
| 6162 | 163 // As the hash value used by the String object itself, in |
| 164 // String.hashCode(). This value is normally calculated in Java code | |
| 165 // in the String.hashCode method(), but is precomputed for String | |
| 166 // objects in the shared archive file. | |
| 167 // hash P(31) from Kernighan & Ritchie | |
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168 // |
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169 // For this reason, THIS ALGORITHM MUST MATCH String.hashCode(). |
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170 template <typename T> static unsigned int hash_code(T* s, int len) { |
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171 unsigned int h = 0; |
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172 while (len-- > 0) { |
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173 h = 31*h + (unsigned int) *s; |
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174 s++; |
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175 } |
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176 return h; |
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177 } |
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178 static unsigned int hash_code(oop java_string); |
| 6162 | 179 |
| 180 // This is the string hash code used by the StringTable, which may be | |
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181 // the same as String.hashCode or an alternate hash code. |
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182 static unsigned int hash_string(oop java_string); |
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183 |
| 0 | 184 static bool equals(oop java_string, jchar* chars, int len); |
| 185 | |
| 186 // Conversion between '.' and '/' formats | |
| 187 static Handle externalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '/', '.', THREAD); } | |
| 188 static Handle internalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '.', '/', THREAD); } | |
| 189 | |
| 190 // Conversion | |
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191 static Symbol* as_symbol(Handle java_string, TRAPS); |
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192 static Symbol* as_symbol_or_null(oop java_string); |
| 0 | 193 |
| 194 // Testers | |
| 195 static bool is_instance(oop obj) { | |
| 1142 | 196 return obj != NULL && obj->klass() == SystemDictionary::String_klass(); |
| 0 | 197 } |
| 198 | |
| 199 // Debugging | |
| 200 static void print(Handle java_string, outputStream* st); | |
| 201 friend class JavaClasses; | |
| 202 }; | |
| 203 | |
| 204 | |
| 205 // Interface to java.lang.Class objects | |
| 206 | |
| 3938 | 207 #define CLASS_INJECTED_FIELDS(macro) \ |
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208 macro(java_lang_Class, klass, intptr_signature, false) \ |
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209 macro(java_lang_Class, array_klass, intptr_signature, false) \ |
| 3938 | 210 macro(java_lang_Class, oop_size, int_signature, false) \ |
| 211 macro(java_lang_Class, static_oop_field_count, int_signature, false) | |
| 212 | |
| 0 | 213 class java_lang_Class : AllStatic { |
| 3938 | 214 friend class VMStructs; |
| 215 | |
| 0 | 216 private: |
| 217 // The fake offsets are added by the class loader when java.lang.Class is loaded | |
| 218 | |
| 3938 | 219 static int _klass_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_NewArray support | |
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256 static Klass* array_klass(oop java_class); |
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257 static void set_array_klass(oop java_class, Klass* klass); |
| 0 | 258 // compiler support for class operations |
| 3938 | 259 static int klass_offset_in_bytes() { return _klass_offset; } |
| 260 static int array_klass_offset_in_bytes() { return _array_klass_offset; } | |
| 0 | 261 // Support for classRedefinedCount field |
| 262 static int classRedefinedCount(oop the_class_mirror); | |
| 263 static void set_classRedefinedCount(oop the_class_mirror, int value); | |
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264 |
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265 static int oop_size(oop java_class); |
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266 static void set_oop_size(oop java_class, int size); |
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267 static int static_oop_field_count(oop java_class); |
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268 static void set_static_oop_field_count(oop java_class, int size); |
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269 |
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270 static GrowableArray<Klass*>* fixup_mirror_list() { |
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271 return _fixup_mirror_list; |
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272 } |
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273 static void set_fixup_mirror_list(GrowableArray<Klass*>* v) { |
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274 _fixup_mirror_list = v; |
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275 } |
| 0 | 276 // Debugging |
| 277 friend class JavaClasses; | |
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278 friend class InstanceKlass; // verification code accesses offsets |
| 0 | 279 friend class ClassFileParser; // access to number_of_fake_fields |
| 280 }; | |
| 281 | |
| 282 // Interface to java.lang.Thread objects | |
| 283 | |
| 284 class java_lang_Thread : AllStatic { | |
| 285 private: | |
| 286 // Note that for this class the layout changed between JDK1.2 and JDK1.3, | |
| 287 // so we compute the offsets at startup rather than hard-wiring them. | |
| 288 static int _name_offset; | |
| 289 static int _group_offset; | |
| 290 static int _contextClassLoader_offset; | |
| 291 static int _inheritedAccessControlContext_offset; | |
| 292 static int _priority_offset; | |
| 293 static int _eetop_offset; | |
| 294 static int _daemon_offset; | |
| 295 static int _stillborn_offset; | |
| 296 static int _stackSize_offset; | |
| 297 static int _tid_offset; | |
| 298 static int _thread_status_offset; | |
| 299 static int _park_blocker_offset; | |
| 300 static int _park_event_offset ; | |
| 301 | |
| 302 static void compute_offsets(); | |
| 303 | |
| 304 public: | |
| 305 // Instance creation | |
| 306 static oop create(); | |
| 307 // Returns the JavaThread associated with the thread obj | |
| 308 static JavaThread* thread(oop java_thread); | |
| 309 // Set JavaThread for instance | |
| 310 static void set_thread(oop java_thread, JavaThread* thread); | |
| 311 // Name | |
| 312 static typeArrayOop name(oop java_thread); | |
| 313 static void set_name(oop java_thread, typeArrayOop name); | |
| 314 // Priority | |
| 315 static ThreadPriority priority(oop java_thread); | |
| 316 static void set_priority(oop java_thread, ThreadPriority priority); | |
| 317 // Thread group | |
| 318 static oop threadGroup(oop java_thread); | |
| 319 // Stillborn | |
| 320 static bool is_stillborn(oop java_thread); | |
| 321 static void set_stillborn(oop java_thread); | |
| 322 // Alive (NOTE: this is not really a field, but provides the correct | |
| 323 // definition without doing a Java call) | |
| 324 static bool is_alive(oop java_thread); | |
| 325 // Daemon | |
| 326 static bool is_daemon(oop java_thread); | |
| 327 static void set_daemon(oop java_thread); | |
| 328 // Context ClassLoader | |
| 329 static oop context_class_loader(oop java_thread); | |
| 330 // Control context | |
| 331 static oop inherited_access_control_context(oop java_thread); | |
| 332 // Stack size hint | |
| 333 static jlong stackSize(oop java_thread); | |
| 334 // Thread ID | |
| 335 static jlong thread_id(oop java_thread); | |
| 336 | |
| 337 // Blocker object responsible for thread parking | |
| 338 static oop park_blocker(oop java_thread); | |
| 339 | |
| 340 // Pointer to type-stable park handler, encoded as jlong. | |
| 341 // Should be set when apparently null | |
| 342 // For details, see unsafe.cpp Unsafe_Unpark | |
| 343 static jlong park_event(oop java_thread); | |
| 344 static bool set_park_event(oop java_thread, jlong ptr); | |
| 345 | |
| 346 // Java Thread Status for JVMTI and M&M use. | |
| 347 // This thread status info is saved in threadStatus field of | |
| 348 // java.lang.Thread java class. | |
| 349 enum ThreadStatus { | |
| 350 NEW = 0, | |
| 351 RUNNABLE = JVMTI_THREAD_STATE_ALIVE + // runnable / running | |
| 352 JVMTI_THREAD_STATE_RUNNABLE, | |
| 353 SLEEPING = JVMTI_THREAD_STATE_ALIVE + // Thread.sleep() | |
| 354 JVMTI_THREAD_STATE_WAITING + | |
| 355 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + | |
| 356 JVMTI_THREAD_STATE_SLEEPING, | |
| 357 IN_OBJECT_WAIT = JVMTI_THREAD_STATE_ALIVE + // Object.wait() | |
| 358 JVMTI_THREAD_STATE_WAITING + | |
| 359 JVMTI_THREAD_STATE_WAITING_INDEFINITELY + | |
| 360 JVMTI_THREAD_STATE_IN_OBJECT_WAIT, | |
| 361 IN_OBJECT_WAIT_TIMED = JVMTI_THREAD_STATE_ALIVE + // Object.wait(long) | |
| 362 JVMTI_THREAD_STATE_WAITING + | |
| 363 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + | |
| 364 JVMTI_THREAD_STATE_IN_OBJECT_WAIT, | |
| 365 PARKED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park() | |
| 366 JVMTI_THREAD_STATE_WAITING + | |
| 367 JVMTI_THREAD_STATE_WAITING_INDEFINITELY + | |
| 368 JVMTI_THREAD_STATE_PARKED, | |
| 369 PARKED_TIMED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park(long) | |
| 370 JVMTI_THREAD_STATE_WAITING + | |
| 371 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + | |
| 372 JVMTI_THREAD_STATE_PARKED, | |
| 373 BLOCKED_ON_MONITOR_ENTER = JVMTI_THREAD_STATE_ALIVE + // (re-)entering a synchronization block | |
| 374 JVMTI_THREAD_STATE_BLOCKED_ON_MONITOR_ENTER, | |
| 375 TERMINATED = JVMTI_THREAD_STATE_TERMINATED | |
| 376 }; | |
| 377 // Write thread status info to threadStatus field of java.lang.Thread. | |
| 378 static void set_thread_status(oop java_thread_oop, ThreadStatus status); | |
| 379 // Read thread status info from threadStatus field of java.lang.Thread. | |
| 380 static ThreadStatus get_thread_status(oop java_thread_oop); | |
| 381 | |
| 382 static const char* thread_status_name(oop java_thread_oop); | |
| 383 | |
| 384 // Debugging | |
| 385 friend class JavaClasses; | |
| 386 }; | |
| 387 | |
| 388 // Interface to java.lang.ThreadGroup objects | |
| 389 | |
| 390 class java_lang_ThreadGroup : AllStatic { | |
| 391 private: | |
| 392 static int _parent_offset; | |
| 393 static int _name_offset; | |
| 394 static int _threads_offset; | |
| 395 static int _groups_offset; | |
| 396 static int _maxPriority_offset; | |
| 397 static int _destroyed_offset; | |
| 398 static int _daemon_offset; | |
| 399 static int _vmAllowSuspension_offset; | |
| 400 static int _nthreads_offset; | |
| 401 static int _ngroups_offset; | |
| 402 | |
| 403 static void compute_offsets(); | |
| 404 | |
| 405 public: | |
| 406 // parent ThreadGroup | |
| 407 static oop parent(oop java_thread_group); | |
| 408 // name | |
| 409 static typeArrayOop name(oop java_thread_group); | |
| 410 // ("name as oop" accessor is not necessary) | |
| 411 // Number of threads in group | |
| 412 static int nthreads(oop java_thread_group); | |
| 413 // threads | |
| 414 static objArrayOop threads(oop java_thread_group); | |
| 415 // Number of threads in group | |
| 416 static int ngroups(oop java_thread_group); | |
| 417 // groups | |
| 418 static objArrayOop groups(oop java_thread_group); | |
| 419 // maxPriority in group | |
| 420 static ThreadPriority maxPriority(oop java_thread_group); | |
| 421 // Destroyed | |
| 422 static bool is_destroyed(oop java_thread_group); | |
| 423 // Daemon | |
| 424 static bool is_daemon(oop java_thread_group); | |
| 425 // vmAllowSuspension | |
| 426 static bool is_vmAllowSuspension(oop java_thread_group); | |
| 427 // Debugging | |
| 428 friend class JavaClasses; | |
| 429 }; | |
| 430 | |
| 431 | |
| 432 | |
| 433 // Interface to java.lang.Throwable objects | |
| 434 | |
| 435 class java_lang_Throwable: AllStatic { | |
| 436 friend class BacktraceBuilder; | |
| 437 | |
| 438 private: | |
| 439 // Offsets | |
| 440 enum { | |
| 441 hc_backtrace_offset = 0, | |
| 442 hc_detailMessage_offset = 1, | |
| 443 hc_cause_offset = 2, // New since 1.4 | |
| 444 hc_stackTrace_offset = 3 // New since 1.4 | |
| 445 }; | |
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446 enum { |
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447 hc_static_unassigned_stacktrace_offset = 0 // New since 1.7 |
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448 }; |
| 0 | 449 // Trace constants |
| 450 enum { | |
| 451 trace_methods_offset = 0, | |
| 452 trace_bcis_offset = 1, | |
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453 trace_mirrors_offset = 2, |
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454 trace_next_offset = 3, |
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455 trace_size = 4, |
| 0 | 456 trace_chunk_size = 32 |
| 457 }; | |
| 458 | |
| 459 static int backtrace_offset; | |
| 460 static int detailMessage_offset; | |
| 461 static int cause_offset; | |
| 462 static int stackTrace_offset; | |
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463 static int static_unassigned_stacktrace_offset; |
| 0 | 464 |
| 465 // Printing | |
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466 static char* print_stack_element_to_buffer(Handle mirror, int method, int version, int bci); |
| 0 | 467 // StackTrace (programmatic access, new since 1.4) |
| 468 static void clear_stacktrace(oop throwable); | |
| 469 // No stack trace available | |
| 470 static const char* no_stack_trace_message(); | |
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471 // Stacktrace (post JDK 1.7.0 to allow immutability protocol to be followed) |
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472 static void set_stacktrace(oop throwable, oop st_element_array); |
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473 static oop unassigned_stacktrace(); |
| 0 | 474 |
| 475 public: | |
| 476 // Backtrace | |
| 477 static oop backtrace(oop throwable); | |
| 478 static void set_backtrace(oop throwable, oop value); | |
| 479 // Needed by JVMTI to filter out this internal field. | |
| 480 static int get_backtrace_offset() { return backtrace_offset;} | |
| 481 static int get_detailMessage_offset() { return detailMessage_offset;} | |
| 482 // Message | |
| 483 static oop message(oop throwable); | |
| 484 static oop message(Handle throwable); | |
| 485 static void set_message(oop throwable, oop value); | |
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486 static void print_stack_element(outputStream *st, Handle mirror, int method, |
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487 int version, int bci); |
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488 static void print_stack_element(outputStream *st, methodHandle method, int bci); |
| 0 | 489 static void print_stack_usage(Handle stream); |
| 490 | |
| 491 // Allocate space for backtrace (created but stack trace not filled in) | |
| 492 static void allocate_backtrace(Handle throwable, TRAPS); | |
| 493 // Fill in current stack trace for throwable with preallocated backtrace (no GC) | |
| 494 static void fill_in_stack_trace_of_preallocated_backtrace(Handle throwable); | |
| 495 // Fill in current stack trace, can cause GC | |
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496 static void fill_in_stack_trace(Handle throwable, methodHandle method, TRAPS); |
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497 static void fill_in_stack_trace(Handle throwable, methodHandle method = methodHandle()); |
| 0 | 498 // Programmatic access to stack trace |
| 499 static oop get_stack_trace_element(oop throwable, int index, TRAPS); | |
| 500 static int get_stack_trace_depth(oop throwable, TRAPS); | |
| 501 // Printing | |
| 502 static void print(oop throwable, outputStream* st); | |
| 503 static void print(Handle throwable, outputStream* st); | |
| 504 static void print_stack_trace(oop throwable, outputStream* st); | |
| 505 // Debugging | |
| 506 friend class JavaClasses; | |
| 507 }; | |
| 508 | |
| 509 | |
| 510 // Interface to java.lang.reflect.AccessibleObject objects | |
| 511 | |
| 512 class java_lang_reflect_AccessibleObject: AllStatic { | |
| 513 private: | |
| 514 // Note that to reduce dependencies on the JDK we compute these | |
| 515 // offsets at run-time. | |
| 516 static int override_offset; | |
| 517 | |
| 518 static void compute_offsets(); | |
| 519 | |
| 520 public: | |
| 521 // Accessors | |
| 522 static jboolean override(oop reflect); | |
| 523 static void set_override(oop reflect, jboolean value); | |
| 524 | |
| 525 // Debugging | |
| 526 friend class JavaClasses; | |
| 527 }; | |
| 528 | |
| 529 | |
| 530 // Interface to java.lang.reflect.Method objects | |
| 531 | |
| 532 class java_lang_reflect_Method : public java_lang_reflect_AccessibleObject { | |
| 533 private: | |
| 534 // Note that to reduce dependencies on the JDK we compute these | |
| 535 // offsets at run-time. | |
| 536 static int clazz_offset; | |
| 537 static int name_offset; | |
| 538 static int returnType_offset; | |
| 539 static int parameterTypes_offset; | |
| 540 static int exceptionTypes_offset; | |
| 541 static int slot_offset; | |
| 542 static int modifiers_offset; | |
| 543 static int signature_offset; | |
| 544 static int annotations_offset; | |
| 545 static int parameter_annotations_offset; | |
| 546 static int annotation_default_offset; | |
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547 static int type_annotations_offset; |
| 0 | 548 |
| 549 static void compute_offsets(); | |
| 550 | |
| 551 public: | |
| 552 // Allocation | |
| 553 static Handle create(TRAPS); | |
| 554 | |
| 555 // Accessors | |
| 556 static oop clazz(oop reflect); | |
| 557 static void set_clazz(oop reflect, oop value); | |
| 558 | |
| 559 static oop name(oop method); | |
| 560 static void set_name(oop method, oop value); | |
| 561 | |
| 562 static oop return_type(oop method); | |
| 563 static void set_return_type(oop method, oop value); | |
| 564 | |
| 565 static oop parameter_types(oop method); | |
| 566 static void set_parameter_types(oop method, oop value); | |
| 567 | |
| 568 static oop exception_types(oop method); | |
| 569 static void set_exception_types(oop method, oop value); | |
| 570 | |
| 571 static int slot(oop reflect); | |
| 572 static void set_slot(oop reflect, int value); | |
| 573 | |
| 574 static int modifiers(oop method); | |
| 575 static void set_modifiers(oop method, int value); | |
| 576 | |
| 577 static bool has_signature_field(); | |
| 578 static oop signature(oop method); | |
| 579 static void set_signature(oop method, oop value); | |
| 580 | |
| 581 static bool has_annotations_field(); | |
| 582 static oop annotations(oop method); | |
| 583 static void set_annotations(oop method, oop value); | |
| 584 | |
| 585 static bool has_parameter_annotations_field(); | |
| 586 static oop parameter_annotations(oop method); | |
| 587 static void set_parameter_annotations(oop method, oop value); | |
| 588 | |
| 589 static bool has_annotation_default_field(); | |
| 590 static oop annotation_default(oop method); | |
| 591 static void set_annotation_default(oop method, oop value); | |
| 592 | |
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593 static bool has_type_annotations_field(); |
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594 static oop type_annotations(oop method); |
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595 static void set_type_annotations(oop method, oop value); |
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596 |
| 0 | 597 // Debugging |
| 598 friend class JavaClasses; | |
| 599 }; | |
| 600 | |
| 601 | |
| 602 // Interface to java.lang.reflect.Constructor objects | |
| 603 | |
| 604 class java_lang_reflect_Constructor : public java_lang_reflect_AccessibleObject { | |
| 605 private: | |
| 606 // Note that to reduce dependencies on the JDK we compute these | |
| 607 // offsets at run-time. | |
| 608 static int clazz_offset; | |
| 609 static int parameterTypes_offset; | |
| 610 static int exceptionTypes_offset; | |
| 611 static int slot_offset; | |
| 612 static int modifiers_offset; | |
| 613 static int signature_offset; | |
| 614 static int annotations_offset; | |
| 615 static int parameter_annotations_offset; | |
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616 static int type_annotations_offset; |
| 0 | 617 |
| 618 static void compute_offsets(); | |
| 619 | |
| 620 public: | |
| 621 // Allocation | |
| 622 static Handle create(TRAPS); | |
| 623 | |
| 624 // Accessors | |
| 625 static oop clazz(oop reflect); | |
| 626 static void set_clazz(oop reflect, oop value); | |
| 627 | |
| 628 static oop parameter_types(oop constructor); | |
| 629 static void set_parameter_types(oop constructor, oop value); | |
| 630 | |
| 631 static oop exception_types(oop constructor); | |
| 632 static void set_exception_types(oop constructor, oop value); | |
| 633 | |
| 634 static int slot(oop reflect); | |
| 635 static void set_slot(oop reflect, int value); | |
| 636 | |
| 637 static int modifiers(oop constructor); | |
| 638 static void set_modifiers(oop constructor, int value); | |
| 639 | |
| 640 static bool has_signature_field(); | |
| 641 static oop signature(oop constructor); | |
| 642 static void set_signature(oop constructor, oop value); | |
| 643 | |
| 644 static bool has_annotations_field(); | |
| 645 static oop annotations(oop constructor); | |
| 646 static void set_annotations(oop constructor, oop value); | |
| 647 | |
| 648 static bool has_parameter_annotations_field(); | |
| 649 static oop parameter_annotations(oop method); | |
| 650 static void set_parameter_annotations(oop method, oop value); | |
| 651 | |
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652 static bool has_type_annotations_field(); |
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653 static oop type_annotations(oop constructor); |
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654 static void set_type_annotations(oop constructor, oop value); |
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655 |
| 0 | 656 // Debugging |
| 657 friend class JavaClasses; | |
| 658 }; | |
| 659 | |
| 660 | |
| 661 // Interface to java.lang.reflect.Field objects | |
| 662 | |
| 663 class java_lang_reflect_Field : public java_lang_reflect_AccessibleObject { | |
| 664 private: | |
| 665 // Note that to reduce dependencies on the JDK we compute these | |
| 666 // offsets at run-time. | |
| 667 static int clazz_offset; | |
| 668 static int name_offset; | |
| 669 static int type_offset; | |
| 670 static int slot_offset; | |
| 671 static int modifiers_offset; | |
| 672 static int signature_offset; | |
| 673 static int annotations_offset; | |
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674 static int type_annotations_offset; |
| 0 | 675 |
| 676 static void compute_offsets(); | |
| 677 | |
| 678 public: | |
| 679 // Allocation | |
| 680 static Handle create(TRAPS); | |
| 681 | |
| 682 // Accessors | |
| 683 static oop clazz(oop reflect); | |
| 684 static void set_clazz(oop reflect, oop value); | |
| 685 | |
| 686 static oop name(oop field); | |
| 687 static void set_name(oop field, oop value); | |
| 688 | |
| 689 static oop type(oop field); | |
| 690 static void set_type(oop field, oop value); | |
| 691 | |
| 692 static int slot(oop reflect); | |
| 693 static void set_slot(oop reflect, int value); | |
| 694 | |
| 695 static int modifiers(oop field); | |
| 696 static void set_modifiers(oop field, int value); | |
| 697 | |
| 698 static bool has_signature_field(); | |
| 699 static oop signature(oop constructor); | |
| 700 static void set_signature(oop constructor, oop value); | |
| 701 | |
| 702 static bool has_annotations_field(); | |
| 703 static oop annotations(oop constructor); | |
| 704 static void set_annotations(oop constructor, oop value); | |
| 705 | |
| 706 static bool has_parameter_annotations_field(); | |
| 707 static oop parameter_annotations(oop method); | |
| 708 static void set_parameter_annotations(oop method, oop value); | |
| 709 | |
| 710 static bool has_annotation_default_field(); | |
| 711 static oop annotation_default(oop method); | |
| 712 static void set_annotation_default(oop method, oop value); | |
| 713 | |
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714 static bool has_type_annotations_field(); |
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715 static oop type_annotations(oop field); |
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716 static void set_type_annotations(oop field, oop value); |
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717 |
| 0 | 718 // Debugging |
| 719 friend class JavaClasses; | |
| 720 }; | |
| 721 | |
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722 class java_lang_reflect_Parameter { |
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723 private: |
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724 // Note that to reduce dependencies on the JDK we compute these |
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725 // offsets at run-time. |
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726 static int name_offset; |
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727 static int modifiers_offset; |
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728 static int index_offset; |
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729 static int executable_offset; |
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730 |
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731 static void compute_offsets(); |
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732 |
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733 public: |
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734 // Allocation |
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735 static Handle create(TRAPS); |
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736 |
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737 // Accessors |
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738 static oop name(oop field); |
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739 static void set_name(oop field, oop value); |
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740 |
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741 static int index(oop reflect); |
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742 static void set_index(oop reflect, int value); |
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743 |
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744 static int modifiers(oop reflect); |
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745 static void set_modifiers(oop reflect, int value); |
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746 |
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747 static oop executable(oop constructor); |
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748 static void set_executable(oop constructor, oop value); |
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749 |
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750 friend class JavaClasses; |
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751 }; |
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752 |
| 0 | 753 // Interface to sun.reflect.ConstantPool objects |
| 754 class sun_reflect_ConstantPool { | |
| 755 private: | |
| 756 // Note that to reduce dependencies on the JDK we compute these | |
| 757 // offsets at run-time. | |
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758 static int _oop_offset; |
| 0 | 759 |
| 760 static void compute_offsets(); | |
| 761 | |
| 762 public: | |
| 763 // Allocation | |
| 764 static Handle create(TRAPS); | |
| 765 | |
| 766 // Accessors | |
|
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767 static void set_cp(oop reflect, ConstantPool* value); |
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768 static int oop_offset() { |
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769 return _oop_offset; |
| 0 | 770 } |
| 771 | |
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772 static ConstantPool* get_cp(oop reflect); |
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773 |
| 0 | 774 // Debugging |
| 775 friend class JavaClasses; | |
| 776 }; | |
| 777 | |
| 778 // Interface to sun.reflect.UnsafeStaticFieldAccessorImpl objects | |
| 779 class sun_reflect_UnsafeStaticFieldAccessorImpl { | |
| 780 private: | |
| 781 static int _base_offset; | |
| 782 static void compute_offsets(); | |
| 783 | |
| 784 public: | |
| 785 static int base_offset() { | |
| 786 return _base_offset; | |
| 787 } | |
| 788 | |
| 789 // Debugging | |
| 790 friend class JavaClasses; | |
| 791 }; | |
| 792 | |
| 793 // Interface to java.lang primitive type boxing objects: | |
| 794 // - java.lang.Boolean | |
| 795 // - java.lang.Character | |
| 796 // - java.lang.Float | |
| 797 // - java.lang.Double | |
| 798 // - java.lang.Byte | |
| 799 // - java.lang.Short | |
| 800 // - java.lang.Integer | |
| 801 // - java.lang.Long | |
| 802 | |
| 803 // This could be separated out into 8 individual classes. | |
| 804 | |
| 805 class java_lang_boxing_object: AllStatic { | |
| 806 private: | |
| 807 enum { | |
| 808 hc_value_offset = 0 | |
| 809 }; | |
| 810 static int value_offset; | |
|
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811 static int long_value_offset; |
| 0 | 812 |
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813 static oop initialize_and_allocate(BasicType type, TRAPS); |
| 0 | 814 public: |
| 815 // Allocation. Returns a boxed value, or NULL for invalid type. | |
| 816 static oop create(BasicType type, jvalue* value, TRAPS); | |
| 817 // Accessors. Returns the basic type being boxed, or T_ILLEGAL for invalid oop. | |
| 818 static BasicType get_value(oop box, jvalue* value); | |
| 819 static BasicType set_value(oop box, jvalue* value); | |
|
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820 static BasicType basic_type(oop box); |
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821 static bool is_instance(oop box) { return basic_type(box) != T_ILLEGAL; } |
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822 static bool is_instance(oop box, BasicType type) { return basic_type(box) == type; } |
|
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823 static void print(oop box, outputStream* st) { jvalue value; print(get_value(box, &value), &value, st); } |
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824 static void print(BasicType type, jvalue* value, outputStream* st); |
| 0 | 825 |
|
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826 static int value_offset_in_bytes(BasicType type) { |
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827 return ( type == T_LONG || type == T_DOUBLE ) ? long_value_offset : |
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828 value_offset; |
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829 } |
| 0 | 830 |
| 831 // Debugging | |
| 832 friend class JavaClasses; | |
| 833 }; | |
| 834 | |
| 835 | |
| 836 | |
| 837 // Interface to java.lang.ref.Reference objects | |
| 838 | |
| 839 class java_lang_ref_Reference: AllStatic { | |
| 840 public: | |
| 841 enum { | |
| 842 hc_referent_offset = 0, | |
| 843 hc_queue_offset = 1, | |
| 844 hc_next_offset = 2, | |
| 845 hc_discovered_offset = 3 // Is not last, see SoftRefs. | |
| 846 }; | |
| 847 enum { | |
| 848 hc_static_lock_offset = 0, | |
| 849 hc_static_pending_offset = 1 | |
| 850 }; | |
| 851 | |
| 852 static int referent_offset; | |
| 853 static int queue_offset; | |
| 854 static int next_offset; | |
| 855 static int discovered_offset; | |
| 856 static int static_lock_offset; | |
| 857 static int static_pending_offset; | |
| 858 static int number_of_fake_oop_fields; | |
| 859 | |
| 860 // Accessors | |
|
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861 static oop referent(oop ref) { |
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862 return ref->obj_field(referent_offset); |
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863 } |
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864 static void set_referent(oop ref, oop value) { |
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865 ref->obj_field_put(referent_offset, value); |
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866 } |
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867 static void set_referent_raw(oop ref, oop value) { |
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868 ref->obj_field_put_raw(referent_offset, value); |
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869 } |
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870 static HeapWord* referent_addr(oop ref) { |
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871 return ref->obj_field_addr<HeapWord>(referent_offset); |
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872 } |
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873 static oop next(oop ref) { |
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874 return ref->obj_field(next_offset); |
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875 } |
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876 static void set_next(oop ref, oop value) { |
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877 ref->obj_field_put(next_offset, value); |
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878 } |
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879 static void set_next_raw(oop ref, oop value) { |
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880 ref->obj_field_put_raw(next_offset, value); |
|
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881 } |
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882 static HeapWord* next_addr(oop ref) { |
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883 return ref->obj_field_addr<HeapWord>(next_offset); |
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884 } |
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885 static oop discovered(oop ref) { |
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886 return ref->obj_field(discovered_offset); |
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887 } |
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888 static void set_discovered(oop ref, oop value) { |
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889 ref->obj_field_put(discovered_offset, value); |
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890 } |
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891 static void set_discovered_raw(oop ref, oop value) { |
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892 ref->obj_field_put_raw(discovered_offset, value); |
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893 } |
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894 static HeapWord* discovered_addr(oop ref) { |
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895 return ref->obj_field_addr<HeapWord>(discovered_offset); |
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896 } |
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897 // Accessors for statics |
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898 static oop pending_list_lock(); |
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899 static oop pending_list(); |
| 0 | 900 |
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901 static HeapWord* pending_list_lock_addr(); |
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902 static HeapWord* pending_list_addr(); |
| 0 | 903 }; |
| 904 | |
| 905 | |
| 906 // Interface to java.lang.ref.SoftReference objects | |
| 907 | |
| 908 class java_lang_ref_SoftReference: public java_lang_ref_Reference { | |
| 909 public: | |
| 910 enum { | |
| 911 // The timestamp is a long field and may need to be adjusted for alignment. | |
|
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912 hc_timestamp_offset = hc_discovered_offset + 1 |
| 0 | 913 }; |
| 914 enum { | |
| 915 hc_static_clock_offset = 0 | |
| 916 }; | |
| 917 | |
| 918 static int timestamp_offset; | |
| 919 static int static_clock_offset; | |
| 920 | |
| 921 // Accessors | |
| 922 static jlong timestamp(oop ref); | |
| 923 | |
| 924 // Accessors for statics | |
| 925 static jlong clock(); | |
| 926 static void set_clock(jlong value); | |
| 927 }; | |
| 928 | |
| 929 | |
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930 // Interface to java.lang.invoke.MethodHandle objects |
| 710 | 931 |
| 932 class MethodHandleEntry; | |
| 933 | |
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934 class java_lang_invoke_MethodHandle: AllStatic { |
| 710 | 935 friend class JavaClasses; |
| 936 | |
| 937 private: | |
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938 static int _type_offset; // the MethodType of this MH |
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939 static int _form_offset; // the LambdaForm of this MH |
| 710 | 940 |
| 941 static void compute_offsets(); | |
| 942 | |
| 943 public: | |
| 944 // Accessors | |
| 945 static oop type(oop mh); | |
| 946 static void set_type(oop mh, oop mtype); | |
| 947 | |
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948 static oop form(oop mh); |
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949 static void set_form(oop mh, oop lform); |
| 710 | 950 |
| 951 // Testers | |
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952 static bool is_subclass(Klass* klass) { |
| 6983 | 953 return klass->is_subclass_of(SystemDictionary::MethodHandle_klass()); |
| 710 | 954 } |
| 955 static bool is_instance(oop obj) { | |
| 956 return obj != NULL && is_subclass(obj->klass()); | |
| 957 } | |
| 958 | |
| 959 // Accessors for code generation: | |
| 960 static int type_offset_in_bytes() { return _type_offset; } | |
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961 static int form_offset_in_bytes() { return _form_offset; } |
| 710 | 962 }; |
| 963 | |
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964 // Interface to java.lang.invoke.LambdaForm objects |
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965 // (These are a private interface for managing adapter code generation.) |
| 3938 | 966 |
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967 class java_lang_invoke_LambdaForm: AllStatic { |
| 710 | 968 friend class JavaClasses; |
| 969 | |
| 970 private: | |
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971 static int _vmentry_offset; // type is MemberName |
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972 |
| 710 | 973 static void compute_offsets(); |
| 974 | |
| 975 public: | |
| 976 // Accessors | |
|
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977 static oop vmentry(oop lform); |
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978 static void set_vmentry(oop lform, oop invoker); |
| 710 | 979 |
| 980 // Testers | |
|
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981 static bool is_subclass(Klass* klass) { |
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982 return SystemDictionary::LambdaForm_klass() != NULL && |
| 6983 | 983 klass->is_subclass_of(SystemDictionary::LambdaForm_klass()); |
| 710 | 984 } |
| 985 static bool is_instance(oop obj) { | |
| 986 return obj != NULL && is_subclass(obj->klass()); | |
| 987 } | |
| 988 | |
| 989 // Accessors for code generation: | |
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990 static int vmentry_offset_in_bytes() { return _vmentry_offset; } |
| 710 | 991 }; |
| 992 | |
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993 |
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994 // Interface to java.lang.invoke.MemberName objects |
| 710 | 995 // (These are a private interface for Java code to query the class hierarchy.) |
| 996 | |
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997 #define MEMBERNAME_INJECTED_FIELDS(macro) \ |
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998 macro(java_lang_invoke_MemberName, vmloader, object_signature, false) \ |
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999 macro(java_lang_invoke_MemberName, vmindex, intptr_signature, false) \ |
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1000 macro(java_lang_invoke_MemberName, vmtarget, intptr_signature, false) |
| 3938 | 1001 |
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1002 class java_lang_invoke_MemberName: AllStatic { |
| 710 | 1003 friend class JavaClasses; |
| 1004 | |
| 1005 private: | |
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1006 // From java.lang.invoke.MemberName: |
| 710 | 1007 // private Class<?> clazz; // class in which the method is defined |
| 1008 // private String name; // may be null if not yet materialized | |
| 1009 // private Object type; // may be null if not yet materialized | |
| 1010 // private int flags; // modifier bits; see reflect.Modifier | |
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1011 // private intptr vmtarget; // VM-specific target value |
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1012 // private intptr_t vmindex; // member index within class or interface |
| 710 | 1013 static int _clazz_offset; |
| 1014 static int _name_offset; | |
| 1015 static int _type_offset; | |
| 1016 static int _flags_offset; | |
| 1017 static int _vmtarget_offset; | |
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1018 static int _vmloader_offset; |
| 710 | 1019 static int _vmindex_offset; |
| 1020 | |
| 1021 static void compute_offsets(); | |
| 1022 | |
| 1023 public: | |
| 1024 // Accessors | |
| 1025 static oop clazz(oop mname); | |
| 1026 static void set_clazz(oop mname, oop clazz); | |
| 1027 | |
| 1028 static oop type(oop mname); | |
| 1029 static void set_type(oop mname, oop type); | |
| 1030 | |
| 1031 static oop name(oop mname); | |
| 1032 static void set_name(oop mname, oop name); | |
| 1033 | |
| 1034 static int flags(oop mname); | |
| 1035 static void set_flags(oop mname, int flags); | |
| 1036 | |
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1037 static Metadata* vmtarget(oop mname); |
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1038 static void set_vmtarget(oop mname, Metadata* target); |
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1039 #if INCLUDE_JVMTI |
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1040 static void adjust_vmtarget(oop mname, Metadata* target); |
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1041 #endif // INCLUDE_JVMTI |
| 710 | 1042 |
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1043 static intptr_t vmindex(oop mname); |
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1044 static void set_vmindex(oop mname, intptr_t index); |
| 710 | 1045 |
| 1046 // Testers | |
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1047 static bool is_subclass(Klass* klass) { |
| 6983 | 1048 return klass->is_subclass_of(SystemDictionary::MemberName_klass()); |
| 710 | 1049 } |
| 1050 static bool is_instance(oop obj) { | |
| 1051 return obj != NULL && is_subclass(obj->klass()); | |
| 1052 } | |
| 1053 | |
| 1054 // Relevant integer codes (keep these in synch. with MethodHandleNatives.Constants): | |
| 1055 enum { | |
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1056 MN_IS_METHOD = 0x00010000, // method (not constructor) |
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1057 MN_IS_CONSTRUCTOR = 0x00020000, // constructor |
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1058 MN_IS_FIELD = 0x00040000, // field |
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1059 MN_IS_TYPE = 0x00080000, // nested type |
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1060 MN_CALLER_SENSITIVE = 0x00100000, // @CallerSensitive annotation detected |
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1061 MN_REFERENCE_KIND_SHIFT = 24, // refKind |
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1062 MN_REFERENCE_KIND_MASK = 0x0F000000 >> MN_REFERENCE_KIND_SHIFT, |
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1063 // The SEARCH_* bits are not for MN.flags but for the matchFlags argument of MHN.getMembers: |
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1064 MN_SEARCH_SUPERCLASSES = 0x00100000, // walk super classes |
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1065 MN_SEARCH_INTERFACES = 0x00200000 // walk implemented interfaces |
| 710 | 1066 }; |
| 1067 | |
| 1068 // Accessors for code generation: | |
| 1069 static int clazz_offset_in_bytes() { return _clazz_offset; } | |
| 1070 static int type_offset_in_bytes() { return _type_offset; } | |
| 1071 static int name_offset_in_bytes() { return _name_offset; } | |
| 1072 static int flags_offset_in_bytes() { return _flags_offset; } | |
| 1073 static int vmtarget_offset_in_bytes() { return _vmtarget_offset; } | |
| 1074 static int vmindex_offset_in_bytes() { return _vmindex_offset; } | |
| 1075 }; | |
| 1076 | |
| 1077 | |
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1078 // Interface to java.lang.invoke.MethodType objects |
| 710 | 1079 |
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1080 class java_lang_invoke_MethodType: AllStatic { |
| 710 | 1081 friend class JavaClasses; |
| 1082 | |
| 1083 private: | |
| 1084 static int _rtype_offset; | |
| 1085 static int _ptypes_offset; | |
| 1086 | |
| 1087 static void compute_offsets(); | |
| 1088 | |
| 1089 public: | |
| 1090 // Accessors | |
| 1091 static oop rtype(oop mt); | |
| 1092 static objArrayOop ptypes(oop mt); | |
| 1093 | |
| 1094 static oop ptype(oop mt, int index); | |
|
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1095 static int ptype_count(oop mt); |
| 710 | 1096 |
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1097 static int ptype_slot_count(oop mt); // extra counts for long/double |
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1098 static int rtype_slot_count(oop mt); // extra counts for long/double |
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1099 |
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1100 static Symbol* as_signature(oop mt, bool intern_if_not_found, TRAPS); |
| 710 | 1101 static void print_signature(oop mt, outputStream* st); |
| 1102 | |
| 1103 static bool is_instance(oop obj) { | |
| 1104 return obj != NULL && obj->klass() == SystemDictionary::MethodType_klass(); | |
| 1105 } | |
| 1106 | |
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1107 static bool equals(oop mt1, oop mt2); |
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1108 |
| 710 | 1109 // Accessors for code generation: |
| 1110 static int rtype_offset_in_bytes() { return _rtype_offset; } | |
| 1111 static int ptypes_offset_in_bytes() { return _ptypes_offset; } | |
| 1112 }; | |
| 1113 | |
| 1114 | |
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1115 // Interface to java.lang.invoke.CallSite objects |
|
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1116 |
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1117 class java_lang_invoke_CallSite: AllStatic { |
|
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1118 friend class JavaClasses; |
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1119 |
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1120 private: |
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1121 static int _target_offset; |
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1122 |
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1123 static void compute_offsets(); |
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1124 |
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1125 public: |
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1126 // Accessors |
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1127 static oop target( oop site) { return site->obj_field( _target_offset); } |
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1128 static void set_target( oop site, oop target) { site->obj_field_put( _target_offset, target); } |
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1129 |
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1130 static volatile oop target_volatile(oop site) { return site->obj_field_volatile( _target_offset); } |
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1131 static void set_target_volatile(oop site, oop target) { site->obj_field_put_volatile(_target_offset, target); } |
|
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1132 |
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1133 // Testers |
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1134 static bool is_subclass(Klass* klass) { |
| 6983 | 1135 return klass->is_subclass_of(SystemDictionary::CallSite_klass()); |
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1136 } |
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1137 static bool is_instance(oop obj) { |
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1138 return obj != NULL && is_subclass(obj->klass()); |
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1139 } |
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1140 |
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1141 // Accessors for code generation: |
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1142 static int target_offset_in_bytes() { return _target_offset; } |
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1143 }; |
| 710 | 1144 |
| 1145 | |
| 0 | 1146 // Interface to java.security.AccessControlContext objects |
| 1147 | |
| 1148 class java_security_AccessControlContext: AllStatic { | |
| 1149 private: | |
| 1150 // Note that for this class the layout changed between JDK1.2 and JDK1.3, | |
| 1151 // so we compute the offsets at startup rather than hard-wiring them. | |
| 1152 static int _context_offset; | |
| 1153 static int _privilegedContext_offset; | |
| 1154 static int _isPrivileged_offset; | |
| 1155 | |
| 1156 static void compute_offsets(); | |
| 1157 public: | |
| 1158 static oop create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS); | |
| 1159 | |
| 1160 // Debugging/initialization | |
| 1161 friend class JavaClasses; | |
| 1162 }; | |
| 1163 | |
| 1164 | |
| 1165 // Interface to java.lang.ClassLoader objects | |
| 1166 | |
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1167 #define CLASSLOADER_INJECTED_FIELDS(macro) \ |
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1168 macro(java_lang_ClassLoader, loader_data, intptr_signature, false) |
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1169 |
| 0 | 1170 class java_lang_ClassLoader : AllStatic { |
| 1171 private: | |
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1172 // The fake offsets are added by the class loader when java.lang.Class is loaded |
| 0 | 1173 enum { |
| 1174 hc_parent_offset = 0 | |
| 1175 }; | |
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1176 static int _loader_data_offset; |
| 3938 | 1177 static bool offsets_computed; |
| 0 | 1178 static int parent_offset; |
| 3938 | 1179 static int parallelCapable_offset; |
| 1180 | |
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1181 public: |
| 3938 | 1182 static void compute_offsets(); |
| 0 | 1183 |
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1184 static ClassLoaderData** loader_data_addr(oop loader); |
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1185 static ClassLoaderData* loader_data(oop loader); |
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1186 |
| 0 | 1187 static oop parent(oop loader); |
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1188 static bool isAncestor(oop loader, oop cl); |
| 0 | 1189 |
| 3938 | 1190 // Support for parallelCapable field |
| 1191 static bool parallelCapable(oop the_class_mirror); | |
| 1192 | |
| 0 | 1193 static bool is_trusted_loader(oop loader); |
| 1194 | |
| 1195 // Fix for 4474172 | |
| 1196 static oop non_reflection_class_loader(oop loader); | |
| 1197 | |
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1198 // Testers |
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1199 static bool is_subclass(Klass* klass) { |
| 6983 | 1200 return klass->is_subclass_of(SystemDictionary::ClassLoader_klass()); |
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1201 } |
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1202 static bool is_instance(oop obj) { |
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1203 return obj != NULL && is_subclass(obj->klass()); |
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1204 } |
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1205 |
| 0 | 1206 // Debugging |
| 1207 friend class JavaClasses; | |
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1208 friend class ClassFileParser; // access to number_of_fake_fields |
| 0 | 1209 }; |
| 1210 | |
| 1211 | |
| 1212 // Interface to java.lang.System objects | |
| 1213 | |
| 1214 class java_lang_System : AllStatic { | |
| 1215 private: | |
| 1216 enum { | |
| 1217 hc_static_in_offset = 0, | |
| 1218 hc_static_out_offset = 1, | |
| 1219 hc_static_err_offset = 2 | |
| 1220 }; | |
| 1221 | |
| 1222 static int static_in_offset; | |
| 1223 static int static_out_offset; | |
| 1224 static int static_err_offset; | |
| 1225 | |
| 1226 public: | |
| 1227 static int in_offset_in_bytes(); | |
| 1228 static int out_offset_in_bytes(); | |
| 1229 static int err_offset_in_bytes(); | |
| 1230 | |
| 1231 // Debugging | |
| 1232 friend class JavaClasses; | |
| 1233 }; | |
| 1234 | |
| 1235 | |
| 1236 // Interface to java.lang.StackTraceElement objects | |
| 1237 | |
| 1238 class java_lang_StackTraceElement: AllStatic { | |
| 1239 private: | |
| 1240 enum { | |
| 1241 hc_declaringClass_offset = 0, | |
| 1242 hc_methodName_offset = 1, | |
| 1243 hc_fileName_offset = 2, | |
| 1244 hc_lineNumber_offset = 3 | |
| 1245 }; | |
| 1246 | |
| 1247 static int declaringClass_offset; | |
| 1248 static int methodName_offset; | |
| 1249 static int fileName_offset; | |
| 1250 static int lineNumber_offset; | |
| 1251 | |
| 1252 public: | |
| 1253 // Setters | |
| 1254 static void set_declaringClass(oop element, oop value); | |
| 1255 static void set_methodName(oop element, oop value); | |
| 1256 static void set_fileName(oop element, oop value); | |
| 1257 static void set_lineNumber(oop element, int value); | |
| 1258 | |
| 1259 // Create an instance of StackTraceElement | |
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1260 static oop create(Handle mirror, int method, int version, int bci, TRAPS); |
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1261 static oop create(methodHandle method, int bci, TRAPS); |
| 0 | 1262 |
| 1263 // Debugging | |
| 1264 friend class JavaClasses; | |
| 1265 }; | |
| 1266 | |
| 1267 | |
| 1268 // Interface to java.lang.AssertionStatusDirectives objects | |
| 1269 | |
| 1270 class java_lang_AssertionStatusDirectives: AllStatic { | |
| 1271 private: | |
| 1272 enum { | |
| 1273 hc_classes_offset, | |
| 1274 hc_classEnabled_offset, | |
| 1275 hc_packages_offset, | |
| 1276 hc_packageEnabled_offset, | |
| 1277 hc_deflt_offset | |
| 1278 }; | |
| 1279 | |
| 1280 static int classes_offset; | |
| 1281 static int classEnabled_offset; | |
| 1282 static int packages_offset; | |
| 1283 static int packageEnabled_offset; | |
| 1284 static int deflt_offset; | |
| 1285 | |
| 1286 public: | |
| 1287 // Setters | |
| 1288 static void set_classes(oop obj, oop val); | |
| 1289 static void set_classEnabled(oop obj, oop val); | |
| 1290 static void set_packages(oop obj, oop val); | |
| 1291 static void set_packageEnabled(oop obj, oop val); | |
| 1292 static void set_deflt(oop obj, bool val); | |
| 1293 // Debugging | |
| 1294 friend class JavaClasses; | |
| 1295 }; | |
| 1296 | |
| 1297 | |
| 1298 class java_nio_Buffer: AllStatic { | |
| 1299 private: | |
| 1300 static int _limit_offset; | |
| 1301 | |
| 1302 public: | |
| 1303 static int limit_offset(); | |
| 1304 static void compute_offsets(); | |
| 1305 }; | |
| 1306 | |
| 1307 class java_util_concurrent_locks_AbstractOwnableSynchronizer : AllStatic { | |
| 1308 private: | |
| 1309 static int _owner_offset; | |
| 1310 public: | |
| 1311 static void initialize(TRAPS); | |
| 1312 static oop get_owner_threadObj(oop obj); | |
| 1313 }; | |
| 1314 | |
| 3938 | 1315 // Use to declare fields that need to be injected into Java classes |
| 1316 // for the JVM to use. The name_index and signature_index are | |
| 1317 // declared in vmSymbols. The may_be_java flag is used to declare | |
| 1318 // fields that might already exist in Java but should be injected if | |
| 1319 // they don't. Otherwise the field is unconditionally injected and | |
| 1320 // the JVM uses the injected one. This is to ensure that name | |
| 1321 // collisions don't occur. In general may_be_java should be false | |
| 1322 // unless there's a good reason. | |
| 1323 | |
| 1324 class InjectedField { | |
| 1325 public: | |
| 1326 const SystemDictionary::WKID klass_id; | |
| 1327 const vmSymbols::SID name_index; | |
| 1328 const vmSymbols::SID signature_index; | |
| 1329 const bool may_be_java; | |
| 1330 | |
| 1331 | |
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1332 Klass* klass() const { return SystemDictionary::well_known_klass(klass_id); } |
| 3938 | 1333 Symbol* name() const { return lookup_symbol(name_index); } |
| 1334 Symbol* signature() const { return lookup_symbol(signature_index); } | |
| 1335 | |
| 1336 int compute_offset(); | |
| 1337 | |
| 1338 // Find the Symbol for this index | |
| 1339 static Symbol* lookup_symbol(int symbol_index) { | |
| 1340 return vmSymbols::symbol_at((vmSymbols::SID)symbol_index); | |
| 1341 } | |
| 1342 }; | |
| 1343 | |
| 1344 #define DECLARE_INJECTED_FIELD_ENUM(klass, name, signature, may_be_java) \ | |
| 1345 klass##_##name##_enum, | |
| 1346 | |
| 1347 #define ALL_INJECTED_FIELDS(macro) \ | |
| 1348 CLASS_INJECTED_FIELDS(macro) \ | |
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1349 CLASSLOADER_INJECTED_FIELDS(macro) \ |
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1350 MEMBERNAME_INJECTED_FIELDS(macro) |
| 3938 | 1351 |
| 0 | 1352 // Interface to hard-coded offset checking |
| 1353 | |
| 1354 class JavaClasses : AllStatic { | |
| 1355 private: | |
| 3938 | 1356 |
| 1357 static InjectedField _injected_fields[]; | |
| 1358 | |
| 0 | 1359 static bool check_offset(const char *klass_name, int offset, const char *field_name, const char* field_sig) PRODUCT_RETURN0; |
| 1360 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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1361 static bool check_constant(const char *klass_name, int constant, const char *field_name, const char* field_sig) PRODUCT_RETURN0; |
| 3938 | 1362 |
| 0 | 1363 public: |
| 3938 | 1364 enum InjectedFieldID { |
| 1365 ALL_INJECTED_FIELDS(DECLARE_INJECTED_FIELD_ENUM) | |
| 1366 MAX_enum | |
| 1367 }; | |
| 1368 | |
| 1369 static int compute_injected_offset(InjectedFieldID id); | |
| 1370 | |
| 0 | 1371 static void compute_hard_coded_offsets(); |
| 1372 static void compute_offsets(); | |
| 1373 static void check_offsets() PRODUCT_RETURN; | |
| 3938 | 1374 |
| 1375 static InjectedField* get_injected(Symbol* class_name, int* field_count); | |
| 0 | 1376 }; |
| 1972 | 1377 |
| 3938 | 1378 #undef DECLARE_INJECTED_FIELD_ENUM |
| 1379 | |
| 1972 | 1380 #endif // SHARE_VM_CLASSFILE_JAVACLASSES_HPP |