Mercurial > hg > truffle
annotate src/share/vm/classfile/javaClasses.hpp @ 12275:63147986a428
8019835: Strings interned in different threads equal but does not ==
Summary: Add -XX:+VerifyStringTableAtExit option and code to verify StringTable invariants.
Reviewed-by: rdurbin, sspitsyn, coleenp
| author | dcubed |
|---|---|
| date | Wed, 18 Sep 2013 07:02:10 -0700 |
| parents | ca0165daa6ec |
| children | cefad50507d8 301df27023d4 595c0f60d50d |
| 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); |
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156 static jchar* as_unicode_string(oop java_string, int& length, TRAPS); |
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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); |
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185 static bool equals(oop str1, oop str2); |
| 0 | 186 |
| 187 // Conversion between '.' and '/' formats | |
| 188 static Handle externalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '/', '.', THREAD); } | |
| 189 static Handle internalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '.', '/', THREAD); } | |
| 190 | |
| 191 // Conversion | |
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192 static Symbol* as_symbol(Handle java_string, TRAPS); |
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193 static Symbol* as_symbol_or_null(oop java_string); |
| 0 | 194 |
| 195 // Testers | |
| 196 static bool is_instance(oop obj) { | |
| 1142 | 197 return obj != NULL && obj->klass() == SystemDictionary::String_klass(); |
| 0 | 198 } |
| 199 | |
| 200 // Debugging | |
| 201 static void print(Handle java_string, outputStream* st); | |
| 202 friend class JavaClasses; | |
| 203 }; | |
| 204 | |
| 205 | |
| 206 // Interface to java.lang.Class objects | |
| 207 | |
| 3938 | 208 #define CLASS_INJECTED_FIELDS(macro) \ |
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209 macro(java_lang_Class, klass, intptr_signature, false) \ |
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210 macro(java_lang_Class, array_klass, intptr_signature, false) \ |
| 3938 | 211 macro(java_lang_Class, oop_size, int_signature, false) \ |
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212 macro(java_lang_Class, static_oop_field_count, int_signature, false) \ |
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213 macro(java_lang_Class, protection_domain, object_signature, false) \ |
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214 macro(java_lang_Class, init_lock, object_signature, false) \ |
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215 macro(java_lang_Class, signers, object_signature, false) |
| 3938 | 216 |
| 0 | 217 class java_lang_Class : AllStatic { |
| 3938 | 218 friend class VMStructs; |
| 219 | |
| 0 | 220 private: |
| 221 // The fake offsets are added by the class loader when java.lang.Class is loaded | |
| 222 | |
| 3938 | 223 static int _klass_offset; |
| 224 static int _array_klass_offset; | |
| 0 | 225 |
| 3938 | 226 static int _oop_size_offset; |
| 227 static int _static_oop_field_count_offset; | |
| 0 | 228 |
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229 static int _protection_domain_offset; |
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230 static int _init_lock_offset; |
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231 static int _signers_offset; |
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232 |
| 0 | 233 static bool offsets_computed; |
| 234 static int classRedefinedCount_offset; | |
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235 static GrowableArray<Klass*>* _fixup_mirror_list; |
| 0 | 236 |
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237 static void set_init_lock(oop java_class, oop init_lock); |
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238 static void set_protection_domain(oop java_class, oop protection_domain); |
| 0 | 239 public: |
| 3938 | 240 static void compute_offsets(); |
| 241 | |
| 0 | 242 // Instance creation |
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243 static oop create_mirror(KlassHandle k, Handle protection_domain, TRAPS); |
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244 static void fixup_mirror(KlassHandle k, TRAPS); |
| 0 | 245 static oop create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS); |
| 246 // Conversion | |
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247 static Klass* as_Klass(oop java_class); |
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248 static void set_klass(oop java_class, Klass* klass); |
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249 static BasicType as_BasicType(oop java_class, Klass** reference_klass = NULL); |
| 710 | 250 static BasicType as_BasicType(oop java_class, KlassHandle* reference_klass) { |
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251 Klass* refk_oop = NULL; |
| 710 | 252 BasicType result = as_BasicType(java_class, &refk_oop); |
| 253 (*reference_klass) = KlassHandle(refk_oop); | |
| 254 return result; | |
| 255 } | |
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256 static Symbol* as_signature(oop java_class, bool intern_if_not_found, TRAPS); |
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257 static void print_signature(oop java_class, outputStream *st); |
| 0 | 258 // Testing |
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259 static bool is_instance(oop obj) { |
| 1142 | 260 return obj != NULL && obj->klass() == SystemDictionary::Class_klass(); |
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261 } |
| 0 | 262 static bool is_primitive(oop java_class); |
| 263 static BasicType primitive_type(oop java_class); | |
| 264 static oop primitive_mirror(BasicType t); | |
| 265 // JVM_NewArray support | |
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266 static Klass* array_klass(oop java_class); |
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267 static void set_array_klass(oop java_class, Klass* klass); |
| 0 | 268 // compiler support for class operations |
| 3938 | 269 static int klass_offset_in_bytes() { return _klass_offset; } |
| 270 static int array_klass_offset_in_bytes() { return _array_klass_offset; } | |
| 0 | 271 // Support for classRedefinedCount field |
| 272 static int classRedefinedCount(oop the_class_mirror); | |
| 273 static void set_classRedefinedCount(oop the_class_mirror, int value); | |
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274 |
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275 // Support for embedded per-class oops |
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276 static oop protection_domain(oop java_class); |
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277 static oop init_lock(oop java_class); |
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278 static objArrayOop signers(oop java_class); |
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279 static void set_signers(oop java_class, objArrayOop signers); |
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280 |
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281 static int oop_size(oop java_class); |
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282 static void set_oop_size(oop java_class, int size); |
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283 static int static_oop_field_count(oop java_class); |
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284 static void set_static_oop_field_count(oop java_class, int size); |
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285 |
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286 static GrowableArray<Klass*>* fixup_mirror_list() { |
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287 return _fixup_mirror_list; |
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288 } |
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289 static void set_fixup_mirror_list(GrowableArray<Klass*>* v) { |
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290 _fixup_mirror_list = v; |
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291 } |
| 0 | 292 // Debugging |
| 293 friend class JavaClasses; | |
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294 friend class InstanceKlass; // verification code accesses offsets |
| 0 | 295 friend class ClassFileParser; // access to number_of_fake_fields |
| 296 }; | |
| 297 | |
| 298 // Interface to java.lang.Thread objects | |
| 299 | |
| 300 class java_lang_Thread : AllStatic { | |
| 301 private: | |
| 302 // Note that for this class the layout changed between JDK1.2 and JDK1.3, | |
| 303 // so we compute the offsets at startup rather than hard-wiring them. | |
| 304 static int _name_offset; | |
| 305 static int _group_offset; | |
| 306 static int _contextClassLoader_offset; | |
| 307 static int _inheritedAccessControlContext_offset; | |
| 308 static int _priority_offset; | |
| 309 static int _eetop_offset; | |
| 310 static int _daemon_offset; | |
| 311 static int _stillborn_offset; | |
| 312 static int _stackSize_offset; | |
| 313 static int _tid_offset; | |
| 314 static int _thread_status_offset; | |
| 315 static int _park_blocker_offset; | |
| 316 static int _park_event_offset ; | |
| 317 | |
| 318 static void compute_offsets(); | |
| 319 | |
| 320 public: | |
| 321 // Instance creation | |
| 322 static oop create(); | |
| 323 // Returns the JavaThread associated with the thread obj | |
| 324 static JavaThread* thread(oop java_thread); | |
| 325 // Set JavaThread for instance | |
| 326 static void set_thread(oop java_thread, JavaThread* thread); | |
| 327 // Name | |
| 328 static typeArrayOop name(oop java_thread); | |
| 329 static void set_name(oop java_thread, typeArrayOop name); | |
| 330 // Priority | |
| 331 static ThreadPriority priority(oop java_thread); | |
| 332 static void set_priority(oop java_thread, ThreadPriority priority); | |
| 333 // Thread group | |
| 334 static oop threadGroup(oop java_thread); | |
| 335 // Stillborn | |
| 336 static bool is_stillborn(oop java_thread); | |
| 337 static void set_stillborn(oop java_thread); | |
| 338 // Alive (NOTE: this is not really a field, but provides the correct | |
| 339 // definition without doing a Java call) | |
| 340 static bool is_alive(oop java_thread); | |
| 341 // Daemon | |
| 342 static bool is_daemon(oop java_thread); | |
| 343 static void set_daemon(oop java_thread); | |
| 344 // Context ClassLoader | |
| 345 static oop context_class_loader(oop java_thread); | |
| 346 // Control context | |
| 347 static oop inherited_access_control_context(oop java_thread); | |
| 348 // Stack size hint | |
| 349 static jlong stackSize(oop java_thread); | |
| 350 // Thread ID | |
| 351 static jlong thread_id(oop java_thread); | |
| 352 | |
| 353 // Blocker object responsible for thread parking | |
| 354 static oop park_blocker(oop java_thread); | |
| 355 | |
| 356 // Pointer to type-stable park handler, encoded as jlong. | |
| 357 // Should be set when apparently null | |
| 358 // For details, see unsafe.cpp Unsafe_Unpark | |
| 359 static jlong park_event(oop java_thread); | |
| 360 static bool set_park_event(oop java_thread, jlong ptr); | |
| 361 | |
| 362 // Java Thread Status for JVMTI and M&M use. | |
| 363 // This thread status info is saved in threadStatus field of | |
| 364 // java.lang.Thread java class. | |
| 365 enum ThreadStatus { | |
| 366 NEW = 0, | |
| 367 RUNNABLE = JVMTI_THREAD_STATE_ALIVE + // runnable / running | |
| 368 JVMTI_THREAD_STATE_RUNNABLE, | |
| 369 SLEEPING = JVMTI_THREAD_STATE_ALIVE + // Thread.sleep() | |
| 370 JVMTI_THREAD_STATE_WAITING + | |
| 371 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + | |
| 372 JVMTI_THREAD_STATE_SLEEPING, | |
| 373 IN_OBJECT_WAIT = JVMTI_THREAD_STATE_ALIVE + // Object.wait() | |
| 374 JVMTI_THREAD_STATE_WAITING + | |
| 375 JVMTI_THREAD_STATE_WAITING_INDEFINITELY + | |
| 376 JVMTI_THREAD_STATE_IN_OBJECT_WAIT, | |
| 377 IN_OBJECT_WAIT_TIMED = JVMTI_THREAD_STATE_ALIVE + // Object.wait(long) | |
| 378 JVMTI_THREAD_STATE_WAITING + | |
| 379 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + | |
| 380 JVMTI_THREAD_STATE_IN_OBJECT_WAIT, | |
| 381 PARKED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park() | |
| 382 JVMTI_THREAD_STATE_WAITING + | |
| 383 JVMTI_THREAD_STATE_WAITING_INDEFINITELY + | |
| 384 JVMTI_THREAD_STATE_PARKED, | |
| 385 PARKED_TIMED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park(long) | |
| 386 JVMTI_THREAD_STATE_WAITING + | |
| 387 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + | |
| 388 JVMTI_THREAD_STATE_PARKED, | |
| 389 BLOCKED_ON_MONITOR_ENTER = JVMTI_THREAD_STATE_ALIVE + // (re-)entering a synchronization block | |
| 390 JVMTI_THREAD_STATE_BLOCKED_ON_MONITOR_ENTER, | |
| 391 TERMINATED = JVMTI_THREAD_STATE_TERMINATED | |
| 392 }; | |
| 393 // Write thread status info to threadStatus field of java.lang.Thread. | |
| 394 static void set_thread_status(oop java_thread_oop, ThreadStatus status); | |
| 395 // Read thread status info from threadStatus field of java.lang.Thread. | |
| 396 static ThreadStatus get_thread_status(oop java_thread_oop); | |
| 397 | |
| 398 static const char* thread_status_name(oop java_thread_oop); | |
| 399 | |
| 400 // Debugging | |
| 401 friend class JavaClasses; | |
| 402 }; | |
| 403 | |
| 404 // Interface to java.lang.ThreadGroup objects | |
| 405 | |
| 406 class java_lang_ThreadGroup : AllStatic { | |
| 407 private: | |
| 408 static int _parent_offset; | |
| 409 static int _name_offset; | |
| 410 static int _threads_offset; | |
| 411 static int _groups_offset; | |
| 412 static int _maxPriority_offset; | |
| 413 static int _destroyed_offset; | |
| 414 static int _daemon_offset; | |
| 415 static int _vmAllowSuspension_offset; | |
| 416 static int _nthreads_offset; | |
| 417 static int _ngroups_offset; | |
| 418 | |
| 419 static void compute_offsets(); | |
| 420 | |
| 421 public: | |
| 422 // parent ThreadGroup | |
| 423 static oop parent(oop java_thread_group); | |
| 424 // name | |
| 425 static typeArrayOop name(oop java_thread_group); | |
| 426 // ("name as oop" accessor is not necessary) | |
| 427 // Number of threads in group | |
| 428 static int nthreads(oop java_thread_group); | |
| 429 // threads | |
| 430 static objArrayOop threads(oop java_thread_group); | |
| 431 // Number of threads in group | |
| 432 static int ngroups(oop java_thread_group); | |
| 433 // groups | |
| 434 static objArrayOop groups(oop java_thread_group); | |
| 435 // maxPriority in group | |
| 436 static ThreadPriority maxPriority(oop java_thread_group); | |
| 437 // Destroyed | |
| 438 static bool is_destroyed(oop java_thread_group); | |
| 439 // Daemon | |
| 440 static bool is_daemon(oop java_thread_group); | |
| 441 // vmAllowSuspension | |
| 442 static bool is_vmAllowSuspension(oop java_thread_group); | |
| 443 // Debugging | |
| 444 friend class JavaClasses; | |
| 445 }; | |
| 446 | |
| 447 | |
| 448 | |
| 449 // Interface to java.lang.Throwable objects | |
| 450 | |
| 451 class java_lang_Throwable: AllStatic { | |
| 452 friend class BacktraceBuilder; | |
| 453 | |
| 454 private: | |
| 455 // Offsets | |
| 456 enum { | |
| 457 hc_backtrace_offset = 0, | |
| 458 hc_detailMessage_offset = 1, | |
| 459 hc_cause_offset = 2, // New since 1.4 | |
| 460 hc_stackTrace_offset = 3 // New since 1.4 | |
| 461 }; | |
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462 enum { |
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463 hc_static_unassigned_stacktrace_offset = 0 // New since 1.7 |
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464 }; |
| 0 | 465 // Trace constants |
| 466 enum { | |
| 467 trace_methods_offset = 0, | |
| 468 trace_bcis_offset = 1, | |
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469 trace_mirrors_offset = 2, |
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470 trace_next_offset = 3, |
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471 trace_size = 4, |
| 0 | 472 trace_chunk_size = 32 |
| 473 }; | |
| 474 | |
| 475 static int backtrace_offset; | |
| 476 static int detailMessage_offset; | |
| 477 static int cause_offset; | |
| 478 static int stackTrace_offset; | |
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479 static int static_unassigned_stacktrace_offset; |
| 0 | 480 |
| 481 // Printing | |
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482 static char* print_stack_element_to_buffer(Handle mirror, int method, int version, int bci); |
| 0 | 483 // StackTrace (programmatic access, new since 1.4) |
| 484 static void clear_stacktrace(oop throwable); | |
| 485 // No stack trace available | |
| 486 static const char* no_stack_trace_message(); | |
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487 // Stacktrace (post JDK 1.7.0 to allow immutability protocol to be followed) |
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488 static void set_stacktrace(oop throwable, oop st_element_array); |
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489 static oop unassigned_stacktrace(); |
| 0 | 490 |
| 491 public: | |
| 492 // Backtrace | |
| 493 static oop backtrace(oop throwable); | |
| 494 static void set_backtrace(oop throwable, oop value); | |
| 495 // Needed by JVMTI to filter out this internal field. | |
| 496 static int get_backtrace_offset() { return backtrace_offset;} | |
| 497 static int get_detailMessage_offset() { return detailMessage_offset;} | |
| 498 // Message | |
| 499 static oop message(oop throwable); | |
| 500 static oop message(Handle throwable); | |
| 501 static void set_message(oop throwable, oop value); | |
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502 static void print_stack_element(outputStream *st, Handle mirror, int method, |
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503 int version, int bci); |
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504 static void print_stack_element(outputStream *st, methodHandle method, int bci); |
| 0 | 505 static void print_stack_usage(Handle stream); |
| 506 | |
| 507 // Allocate space for backtrace (created but stack trace not filled in) | |
| 508 static void allocate_backtrace(Handle throwable, TRAPS); | |
| 509 // Fill in current stack trace for throwable with preallocated backtrace (no GC) | |
| 510 static void fill_in_stack_trace_of_preallocated_backtrace(Handle throwable); | |
| 511 // Fill in current stack trace, can cause GC | |
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512 static void fill_in_stack_trace(Handle throwable, methodHandle method, TRAPS); |
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513 static void fill_in_stack_trace(Handle throwable, methodHandle method = methodHandle()); |
| 0 | 514 // Programmatic access to stack trace |
| 515 static oop get_stack_trace_element(oop throwable, int index, TRAPS); | |
| 516 static int get_stack_trace_depth(oop throwable, TRAPS); | |
| 517 // Printing | |
| 518 static void print(oop throwable, outputStream* st); | |
| 519 static void print(Handle throwable, outputStream* st); | |
| 520 static void print_stack_trace(oop throwable, outputStream* st); | |
| 521 // Debugging | |
| 522 friend class JavaClasses; | |
| 523 }; | |
| 524 | |
| 525 | |
| 526 // Interface to java.lang.reflect.AccessibleObject objects | |
| 527 | |
| 528 class java_lang_reflect_AccessibleObject: AllStatic { | |
| 529 private: | |
| 530 // Note that to reduce dependencies on the JDK we compute these | |
| 531 // offsets at run-time. | |
| 532 static int override_offset; | |
| 533 | |
| 534 static void compute_offsets(); | |
| 535 | |
| 536 public: | |
| 537 // Accessors | |
| 538 static jboolean override(oop reflect); | |
| 539 static void set_override(oop reflect, jboolean value); | |
| 540 | |
| 541 // Debugging | |
| 542 friend class JavaClasses; | |
| 543 }; | |
| 544 | |
| 545 | |
| 546 // Interface to java.lang.reflect.Method objects | |
| 547 | |
| 548 class java_lang_reflect_Method : public java_lang_reflect_AccessibleObject { | |
| 549 private: | |
| 550 // Note that to reduce dependencies on the JDK we compute these | |
| 551 // offsets at run-time. | |
| 552 static int clazz_offset; | |
| 553 static int name_offset; | |
| 554 static int returnType_offset; | |
| 555 static int parameterTypes_offset; | |
| 556 static int exceptionTypes_offset; | |
| 557 static int slot_offset; | |
| 558 static int modifiers_offset; | |
| 559 static int signature_offset; | |
| 560 static int annotations_offset; | |
| 561 static int parameter_annotations_offset; | |
| 562 static int annotation_default_offset; | |
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563 static int type_annotations_offset; |
| 0 | 564 |
| 565 static void compute_offsets(); | |
| 566 | |
| 567 public: | |
| 568 // Allocation | |
| 569 static Handle create(TRAPS); | |
| 570 | |
| 571 // Accessors | |
| 572 static oop clazz(oop reflect); | |
| 573 static void set_clazz(oop reflect, oop value); | |
| 574 | |
| 575 static oop name(oop method); | |
| 576 static void set_name(oop method, oop value); | |
| 577 | |
| 578 static oop return_type(oop method); | |
| 579 static void set_return_type(oop method, oop value); | |
| 580 | |
| 581 static oop parameter_types(oop method); | |
| 582 static void set_parameter_types(oop method, oop value); | |
| 583 | |
| 584 static oop exception_types(oop method); | |
| 585 static void set_exception_types(oop method, oop value); | |
| 586 | |
| 587 static int slot(oop reflect); | |
| 588 static void set_slot(oop reflect, int value); | |
| 589 | |
| 590 static int modifiers(oop method); | |
| 591 static void set_modifiers(oop method, int value); | |
| 592 | |
| 593 static bool has_signature_field(); | |
| 594 static oop signature(oop method); | |
| 595 static void set_signature(oop method, oop value); | |
| 596 | |
| 597 static bool has_annotations_field(); | |
| 598 static oop annotations(oop method); | |
| 599 static void set_annotations(oop method, oop value); | |
| 600 | |
| 601 static bool has_parameter_annotations_field(); | |
| 602 static oop parameter_annotations(oop method); | |
| 603 static void set_parameter_annotations(oop method, oop value); | |
| 604 | |
| 605 static bool has_annotation_default_field(); | |
| 606 static oop annotation_default(oop method); | |
| 607 static void set_annotation_default(oop method, oop value); | |
| 608 | |
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609 static bool has_type_annotations_field(); |
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610 static oop type_annotations(oop method); |
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611 static void set_type_annotations(oop method, oop value); |
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612 |
| 0 | 613 // Debugging |
| 614 friend class JavaClasses; | |
| 615 }; | |
| 616 | |
| 617 | |
| 618 // Interface to java.lang.reflect.Constructor objects | |
| 619 | |
| 620 class java_lang_reflect_Constructor : public java_lang_reflect_AccessibleObject { | |
| 621 private: | |
| 622 // Note that to reduce dependencies on the JDK we compute these | |
| 623 // offsets at run-time. | |
| 624 static int clazz_offset; | |
| 625 static int parameterTypes_offset; | |
| 626 static int exceptionTypes_offset; | |
| 627 static int slot_offset; | |
| 628 static int modifiers_offset; | |
| 629 static int signature_offset; | |
| 630 static int annotations_offset; | |
| 631 static int parameter_annotations_offset; | |
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632 static int type_annotations_offset; |
| 0 | 633 |
| 634 static void compute_offsets(); | |
| 635 | |
| 636 public: | |
| 637 // Allocation | |
| 638 static Handle create(TRAPS); | |
| 639 | |
| 640 // Accessors | |
| 641 static oop clazz(oop reflect); | |
| 642 static void set_clazz(oop reflect, oop value); | |
| 643 | |
| 644 static oop parameter_types(oop constructor); | |
| 645 static void set_parameter_types(oop constructor, oop value); | |
| 646 | |
| 647 static oop exception_types(oop constructor); | |
| 648 static void set_exception_types(oop constructor, oop value); | |
| 649 | |
| 650 static int slot(oop reflect); | |
| 651 static void set_slot(oop reflect, int value); | |
| 652 | |
| 653 static int modifiers(oop constructor); | |
| 654 static void set_modifiers(oop constructor, int value); | |
| 655 | |
| 656 static bool has_signature_field(); | |
| 657 static oop signature(oop constructor); | |
| 658 static void set_signature(oop constructor, oop value); | |
| 659 | |
| 660 static bool has_annotations_field(); | |
| 661 static oop annotations(oop constructor); | |
| 662 static void set_annotations(oop constructor, oop value); | |
| 663 | |
| 664 static bool has_parameter_annotations_field(); | |
| 665 static oop parameter_annotations(oop method); | |
| 666 static void set_parameter_annotations(oop method, oop value); | |
| 667 | |
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668 static bool has_type_annotations_field(); |
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669 static oop type_annotations(oop constructor); |
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670 static void set_type_annotations(oop constructor, oop value); |
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671 |
| 0 | 672 // Debugging |
| 673 friend class JavaClasses; | |
| 674 }; | |
| 675 | |
| 676 | |
| 677 // Interface to java.lang.reflect.Field objects | |
| 678 | |
| 679 class java_lang_reflect_Field : public java_lang_reflect_AccessibleObject { | |
| 680 private: | |
| 681 // Note that to reduce dependencies on the JDK we compute these | |
| 682 // offsets at run-time. | |
| 683 static int clazz_offset; | |
| 684 static int name_offset; | |
| 685 static int type_offset; | |
| 686 static int slot_offset; | |
| 687 static int modifiers_offset; | |
| 688 static int signature_offset; | |
| 689 static int annotations_offset; | |
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690 static int type_annotations_offset; |
| 0 | 691 |
| 692 static void compute_offsets(); | |
| 693 | |
| 694 public: | |
| 695 // Allocation | |
| 696 static Handle create(TRAPS); | |
| 697 | |
| 698 // Accessors | |
| 699 static oop clazz(oop reflect); | |
| 700 static void set_clazz(oop reflect, oop value); | |
| 701 | |
| 702 static oop name(oop field); | |
| 703 static void set_name(oop field, oop value); | |
| 704 | |
| 705 static oop type(oop field); | |
| 706 static void set_type(oop field, oop value); | |
| 707 | |
| 708 static int slot(oop reflect); | |
| 709 static void set_slot(oop reflect, int value); | |
| 710 | |
| 711 static int modifiers(oop field); | |
| 712 static void set_modifiers(oop field, int value); | |
| 713 | |
| 714 static bool has_signature_field(); | |
| 715 static oop signature(oop constructor); | |
| 716 static void set_signature(oop constructor, oop value); | |
| 717 | |
| 718 static bool has_annotations_field(); | |
| 719 static oop annotations(oop constructor); | |
| 720 static void set_annotations(oop constructor, oop value); | |
| 721 | |
| 722 static bool has_parameter_annotations_field(); | |
| 723 static oop parameter_annotations(oop method); | |
| 724 static void set_parameter_annotations(oop method, oop value); | |
| 725 | |
| 726 static bool has_annotation_default_field(); | |
| 727 static oop annotation_default(oop method); | |
| 728 static void set_annotation_default(oop method, oop value); | |
| 729 | |
|
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730 static bool has_type_annotations_field(); |
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731 static oop type_annotations(oop field); |
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732 static void set_type_annotations(oop field, oop value); |
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733 |
| 0 | 734 // Debugging |
| 735 friend class JavaClasses; | |
| 736 }; | |
| 737 | |
|
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738 class java_lang_reflect_Parameter { |
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739 private: |
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740 // Note that to reduce dependencies on the JDK we compute these |
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741 // offsets at run-time. |
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742 static int name_offset; |
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743 static int modifiers_offset; |
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744 static int index_offset; |
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745 static int executable_offset; |
|
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746 |
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747 static void compute_offsets(); |
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748 |
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749 public: |
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750 // Allocation |
|
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751 static Handle create(TRAPS); |
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752 |
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753 // Accessors |
|
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754 static oop name(oop field); |
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755 static void set_name(oop field, oop value); |
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756 |
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757 static int index(oop reflect); |
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758 static void set_index(oop reflect, int value); |
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759 |
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760 static int modifiers(oop reflect); |
|
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761 static void set_modifiers(oop reflect, int value); |
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762 |
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763 static oop executable(oop constructor); |
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764 static void set_executable(oop constructor, oop value); |
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765 |
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766 friend class JavaClasses; |
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767 }; |
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768 |
| 0 | 769 // Interface to sun.reflect.ConstantPool objects |
| 770 class sun_reflect_ConstantPool { | |
| 771 private: | |
| 772 // Note that to reduce dependencies on the JDK we compute these | |
| 773 // offsets at run-time. | |
|
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774 static int _oop_offset; |
| 0 | 775 |
| 776 static void compute_offsets(); | |
| 777 | |
| 778 public: | |
| 779 // Allocation | |
| 780 static Handle create(TRAPS); | |
| 781 | |
| 782 // Accessors | |
|
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783 static void set_cp(oop reflect, ConstantPool* value); |
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784 static int oop_offset() { |
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785 return _oop_offset; |
| 0 | 786 } |
| 787 | |
|
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788 static ConstantPool* get_cp(oop reflect); |
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789 |
| 0 | 790 // Debugging |
| 791 friend class JavaClasses; | |
| 792 }; | |
| 793 | |
| 794 // Interface to sun.reflect.UnsafeStaticFieldAccessorImpl objects | |
| 795 class sun_reflect_UnsafeStaticFieldAccessorImpl { | |
| 796 private: | |
| 797 static int _base_offset; | |
| 798 static void compute_offsets(); | |
| 799 | |
| 800 public: | |
| 801 static int base_offset() { | |
| 802 return _base_offset; | |
| 803 } | |
| 804 | |
| 805 // Debugging | |
| 806 friend class JavaClasses; | |
| 807 }; | |
| 808 | |
| 809 // Interface to java.lang primitive type boxing objects: | |
| 810 // - java.lang.Boolean | |
| 811 // - java.lang.Character | |
| 812 // - java.lang.Float | |
| 813 // - java.lang.Double | |
| 814 // - java.lang.Byte | |
| 815 // - java.lang.Short | |
| 816 // - java.lang.Integer | |
| 817 // - java.lang.Long | |
| 818 | |
| 819 // This could be separated out into 8 individual classes. | |
| 820 | |
| 821 class java_lang_boxing_object: AllStatic { | |
| 822 private: | |
| 823 enum { | |
| 824 hc_value_offset = 0 | |
| 825 }; | |
| 826 static int value_offset; | |
|
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827 static int long_value_offset; |
| 0 | 828 |
|
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829 static oop initialize_and_allocate(BasicType type, TRAPS); |
| 0 | 830 public: |
| 831 // Allocation. Returns a boxed value, or NULL for invalid type. | |
| 832 static oop create(BasicType type, jvalue* value, TRAPS); | |
| 833 // Accessors. Returns the basic type being boxed, or T_ILLEGAL for invalid oop. | |
| 834 static BasicType get_value(oop box, jvalue* value); | |
| 835 static BasicType set_value(oop box, jvalue* value); | |
|
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836 static BasicType basic_type(oop box); |
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837 static bool is_instance(oop box) { return basic_type(box) != T_ILLEGAL; } |
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838 static bool is_instance(oop box, BasicType type) { return basic_type(box) == type; } |
|
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839 static void print(oop box, outputStream* st) { jvalue value; print(get_value(box, &value), &value, st); } |
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840 static void print(BasicType type, jvalue* value, outputStream* st); |
| 0 | 841 |
|
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842 static int value_offset_in_bytes(BasicType type) { |
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843 return ( type == T_LONG || type == T_DOUBLE ) ? long_value_offset : |
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844 value_offset; |
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845 } |
| 0 | 846 |
| 847 // Debugging | |
| 848 friend class JavaClasses; | |
| 849 }; | |
| 850 | |
| 851 | |
| 852 | |
| 853 // Interface to java.lang.ref.Reference objects | |
| 854 | |
| 855 class java_lang_ref_Reference: AllStatic { | |
| 856 public: | |
| 857 enum { | |
| 858 hc_referent_offset = 0, | |
| 859 hc_queue_offset = 1, | |
| 860 hc_next_offset = 2, | |
| 861 hc_discovered_offset = 3 // Is not last, see SoftRefs. | |
| 862 }; | |
| 863 enum { | |
| 864 hc_static_lock_offset = 0, | |
| 865 hc_static_pending_offset = 1 | |
| 866 }; | |
| 867 | |
| 868 static int referent_offset; | |
| 869 static int queue_offset; | |
| 870 static int next_offset; | |
| 871 static int discovered_offset; | |
| 872 static int static_lock_offset; | |
| 873 static int static_pending_offset; | |
| 874 static int number_of_fake_oop_fields; | |
| 875 | |
| 876 // Accessors | |
|
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877 static oop referent(oop ref) { |
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878 return ref->obj_field(referent_offset); |
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879 } |
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880 static void set_referent(oop ref, oop value) { |
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881 ref->obj_field_put(referent_offset, value); |
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882 } |
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883 static void set_referent_raw(oop ref, oop value) { |
|
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884 ref->obj_field_put_raw(referent_offset, value); |
|
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885 } |
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886 static HeapWord* referent_addr(oop ref) { |
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887 return ref->obj_field_addr<HeapWord>(referent_offset); |
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888 } |
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889 static oop next(oop ref) { |
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890 return ref->obj_field(next_offset); |
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891 } |
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892 static void set_next(oop ref, oop value) { |
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893 ref->obj_field_put(next_offset, value); |
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894 } |
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895 static void set_next_raw(oop ref, oop value) { |
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896 ref->obj_field_put_raw(next_offset, value); |
|
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897 } |
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898 static HeapWord* next_addr(oop ref) { |
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899 return ref->obj_field_addr<HeapWord>(next_offset); |
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900 } |
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901 static oop discovered(oop ref) { |
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902 return ref->obj_field(discovered_offset); |
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903 } |
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904 static void set_discovered(oop ref, oop value) { |
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905 ref->obj_field_put(discovered_offset, value); |
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906 } |
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907 static void set_discovered_raw(oop ref, oop value) { |
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908 ref->obj_field_put_raw(discovered_offset, value); |
|
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909 } |
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910 static HeapWord* discovered_addr(oop ref) { |
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911 return ref->obj_field_addr<HeapWord>(discovered_offset); |
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912 } |
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913 // Accessors for statics |
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914 static oop pending_list_lock(); |
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915 static oop pending_list(); |
| 0 | 916 |
|
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917 static HeapWord* pending_list_lock_addr(); |
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918 static HeapWord* pending_list_addr(); |
| 0 | 919 }; |
| 920 | |
| 921 | |
| 922 // Interface to java.lang.ref.SoftReference objects | |
| 923 | |
| 924 class java_lang_ref_SoftReference: public java_lang_ref_Reference { | |
| 925 public: | |
| 926 enum { | |
| 927 // The timestamp is a long field and may need to be adjusted for alignment. | |
|
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928 hc_timestamp_offset = hc_discovered_offset + 1 |
| 0 | 929 }; |
| 930 enum { | |
| 931 hc_static_clock_offset = 0 | |
| 932 }; | |
| 933 | |
| 934 static int timestamp_offset; | |
| 935 static int static_clock_offset; | |
| 936 | |
| 937 // Accessors | |
| 938 static jlong timestamp(oop ref); | |
| 939 | |
| 940 // Accessors for statics | |
| 941 static jlong clock(); | |
| 942 static void set_clock(jlong value); | |
| 943 }; | |
| 944 | |
| 945 | |
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946 // Interface to java.lang.invoke.MethodHandle objects |
| 710 | 947 |
| 948 class MethodHandleEntry; | |
| 949 | |
|
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950 class java_lang_invoke_MethodHandle: AllStatic { |
| 710 | 951 friend class JavaClasses; |
| 952 | |
| 953 private: | |
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954 static int _type_offset; // the MethodType of this MH |
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955 static int _form_offset; // the LambdaForm of this MH |
| 710 | 956 |
| 957 static void compute_offsets(); | |
| 958 | |
| 959 public: | |
| 960 // Accessors | |
| 961 static oop type(oop mh); | |
| 962 static void set_type(oop mh, oop mtype); | |
| 963 | |
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964 static oop form(oop mh); |
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965 static void set_form(oop mh, oop lform); |
| 710 | 966 |
| 967 // Testers | |
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968 static bool is_subclass(Klass* klass) { |
| 6983 | 969 return klass->is_subclass_of(SystemDictionary::MethodHandle_klass()); |
| 710 | 970 } |
| 971 static bool is_instance(oop obj) { | |
| 972 return obj != NULL && is_subclass(obj->klass()); | |
| 973 } | |
| 974 | |
| 975 // Accessors for code generation: | |
| 976 static int type_offset_in_bytes() { return _type_offset; } | |
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977 static int form_offset_in_bytes() { return _form_offset; } |
| 710 | 978 }; |
| 979 | |
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980 // Interface to java.lang.invoke.DirectMethodHandle objects |
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981 |
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982 class java_lang_invoke_DirectMethodHandle: AllStatic { |
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983 friend class JavaClasses; |
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984 |
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985 private: |
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986 static int _member_offset; // the MemberName of this DMH |
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987 |
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988 static void compute_offsets(); |
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989 |
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990 public: |
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991 // Accessors |
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992 static oop member(oop mh); |
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993 |
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994 // Testers |
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995 static bool is_subclass(Klass* klass) { |
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996 return klass->is_subclass_of(SystemDictionary::DirectMethodHandle_klass()); |
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997 } |
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998 static bool is_instance(oop obj) { |
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999 return obj != NULL && is_subclass(obj->klass()); |
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1000 } |
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1001 |
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1002 // Accessors for code generation: |
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1003 static int member_offset_in_bytes() { return _member_offset; } |
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1004 }; |
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1005 |
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1006 // Interface to java.lang.invoke.LambdaForm objects |
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1007 // (These are a private interface for managing adapter code generation.) |
| 3938 | 1008 |
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1009 class java_lang_invoke_LambdaForm: AllStatic { |
| 710 | 1010 friend class JavaClasses; |
| 1011 | |
| 1012 private: | |
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1013 static int _vmentry_offset; // type is MemberName |
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1014 |
| 710 | 1015 static void compute_offsets(); |
| 1016 | |
| 1017 public: | |
| 1018 // Accessors | |
|
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1019 static oop vmentry(oop lform); |
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1020 static void set_vmentry(oop lform, oop invoker); |
| 710 | 1021 |
| 1022 // Testers | |
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1023 static bool is_subclass(Klass* klass) { |
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1024 return SystemDictionary::LambdaForm_klass() != NULL && |
| 6983 | 1025 klass->is_subclass_of(SystemDictionary::LambdaForm_klass()); |
| 710 | 1026 } |
| 1027 static bool is_instance(oop obj) { | |
| 1028 return obj != NULL && is_subclass(obj->klass()); | |
| 1029 } | |
| 1030 | |
| 1031 // Accessors for code generation: | |
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1032 static int vmentry_offset_in_bytes() { return _vmentry_offset; } |
| 710 | 1033 }; |
| 1034 | |
|
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1035 |
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1036 // Interface to java.lang.invoke.MemberName objects |
| 710 | 1037 // (These are a private interface for Java code to query the class hierarchy.) |
| 1038 | |
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1039 #define MEMBERNAME_INJECTED_FIELDS(macro) \ |
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1040 macro(java_lang_invoke_MemberName, vmloader, object_signature, false) \ |
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1041 macro(java_lang_invoke_MemberName, vmindex, intptr_signature, false) \ |
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1042 macro(java_lang_invoke_MemberName, vmtarget, intptr_signature, false) |
| 3938 | 1043 |
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1044 class java_lang_invoke_MemberName: AllStatic { |
| 710 | 1045 friend class JavaClasses; |
| 1046 | |
| 1047 private: | |
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1048 // From java.lang.invoke.MemberName: |
| 710 | 1049 // private Class<?> clazz; // class in which the method is defined |
| 1050 // private String name; // may be null if not yet materialized | |
| 1051 // private Object type; // may be null if not yet materialized | |
| 1052 // private int flags; // modifier bits; see reflect.Modifier | |
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1053 // private intptr vmtarget; // VM-specific target value |
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1054 // private intptr_t vmindex; // member index within class or interface |
| 710 | 1055 static int _clazz_offset; |
| 1056 static int _name_offset; | |
| 1057 static int _type_offset; | |
| 1058 static int _flags_offset; | |
| 1059 static int _vmtarget_offset; | |
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1060 static int _vmloader_offset; |
| 710 | 1061 static int _vmindex_offset; |
| 1062 | |
| 1063 static void compute_offsets(); | |
| 1064 | |
| 1065 public: | |
| 1066 // Accessors | |
| 1067 static oop clazz(oop mname); | |
| 1068 static void set_clazz(oop mname, oop clazz); | |
| 1069 | |
| 1070 static oop type(oop mname); | |
| 1071 static void set_type(oop mname, oop type); | |
| 1072 | |
| 1073 static oop name(oop mname); | |
| 1074 static void set_name(oop mname, oop name); | |
| 1075 | |
| 1076 static int flags(oop mname); | |
| 1077 static void set_flags(oop mname, int flags); | |
| 1078 | |
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1079 static Metadata* vmtarget(oop mname); |
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1080 static void set_vmtarget(oop mname, Metadata* target); |
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1081 #if INCLUDE_JVMTI |
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1082 static void adjust_vmtarget(oop mname, Metadata* target); |
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1083 #endif // INCLUDE_JVMTI |
| 710 | 1084 |
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1085 static intptr_t vmindex(oop mname); |
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1086 static void set_vmindex(oop mname, intptr_t index); |
| 710 | 1087 |
| 1088 // Testers | |
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1089 static bool is_subclass(Klass* klass) { |
| 6983 | 1090 return klass->is_subclass_of(SystemDictionary::MemberName_klass()); |
| 710 | 1091 } |
| 1092 static bool is_instance(oop obj) { | |
| 1093 return obj != NULL && is_subclass(obj->klass()); | |
| 1094 } | |
| 1095 | |
| 1096 // Relevant integer codes (keep these in synch. with MethodHandleNatives.Constants): | |
| 1097 enum { | |
|
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1098 MN_IS_METHOD = 0x00010000, // method (not constructor) |
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1099 MN_IS_CONSTRUCTOR = 0x00020000, // constructor |
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1100 MN_IS_FIELD = 0x00040000, // field |
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1101 MN_IS_TYPE = 0x00080000, // nested type |
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1102 MN_CALLER_SENSITIVE = 0x00100000, // @CallerSensitive annotation detected |
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1103 MN_REFERENCE_KIND_SHIFT = 24, // refKind |
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1104 MN_REFERENCE_KIND_MASK = 0x0F000000 >> MN_REFERENCE_KIND_SHIFT, |
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1105 // The SEARCH_* bits are not for MN.flags but for the matchFlags argument of MHN.getMembers: |
|
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1106 MN_SEARCH_SUPERCLASSES = 0x00100000, // walk super classes |
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1107 MN_SEARCH_INTERFACES = 0x00200000 // walk implemented interfaces |
| 710 | 1108 }; |
| 1109 | |
| 1110 // Accessors for code generation: | |
| 1111 static int clazz_offset_in_bytes() { return _clazz_offset; } | |
| 1112 static int type_offset_in_bytes() { return _type_offset; } | |
| 1113 static int name_offset_in_bytes() { return _name_offset; } | |
| 1114 static int flags_offset_in_bytes() { return _flags_offset; } | |
| 1115 static int vmtarget_offset_in_bytes() { return _vmtarget_offset; } | |
| 1116 static int vmindex_offset_in_bytes() { return _vmindex_offset; } | |
| 1117 }; | |
| 1118 | |
| 1119 | |
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1120 // Interface to java.lang.invoke.MethodType objects |
| 710 | 1121 |
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1122 class java_lang_invoke_MethodType: AllStatic { |
| 710 | 1123 friend class JavaClasses; |
| 1124 | |
| 1125 private: | |
| 1126 static int _rtype_offset; | |
| 1127 static int _ptypes_offset; | |
| 1128 | |
| 1129 static void compute_offsets(); | |
| 1130 | |
| 1131 public: | |
| 1132 // Accessors | |
| 1133 static oop rtype(oop mt); | |
| 1134 static objArrayOop ptypes(oop mt); | |
| 1135 | |
| 1136 static oop ptype(oop mt, int index); | |
|
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1137 static int ptype_count(oop mt); |
| 710 | 1138 |
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1139 static int ptype_slot_count(oop mt); // extra counts for long/double |
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1140 static int rtype_slot_count(oop mt); // extra counts for long/double |
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1141 |
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1142 static Symbol* as_signature(oop mt, bool intern_if_not_found, TRAPS); |
| 710 | 1143 static void print_signature(oop mt, outputStream* st); |
| 1144 | |
| 1145 static bool is_instance(oop obj) { | |
| 1146 return obj != NULL && obj->klass() == SystemDictionary::MethodType_klass(); | |
| 1147 } | |
| 1148 | |
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1149 static bool equals(oop mt1, oop mt2); |
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1150 |
| 710 | 1151 // Accessors for code generation: |
| 1152 static int rtype_offset_in_bytes() { return _rtype_offset; } | |
| 1153 static int ptypes_offset_in_bytes() { return _ptypes_offset; } | |
| 1154 }; | |
| 1155 | |
| 1156 | |
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1157 // Interface to java.lang.invoke.CallSite objects |
|
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1158 |
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1159 class java_lang_invoke_CallSite: AllStatic { |
|
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1160 friend class JavaClasses; |
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1161 |
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1162 private: |
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1163 static int _target_offset; |
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1164 |
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1165 static void compute_offsets(); |
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1166 |
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1167 public: |
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1168 // Accessors |
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1169 static oop target( oop site) { return site->obj_field( _target_offset); } |
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1170 static void set_target( oop site, oop target) { site->obj_field_put( _target_offset, target); } |
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1171 |
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1172 static volatile oop target_volatile(oop site) { return site->obj_field_volatile( _target_offset); } |
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1173 static void set_target_volatile(oop site, oop target) { site->obj_field_put_volatile(_target_offset, target); } |
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1174 |
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1175 // Testers |
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1176 static bool is_subclass(Klass* klass) { |
| 6983 | 1177 return klass->is_subclass_of(SystemDictionary::CallSite_klass()); |
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1178 } |
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1179 static bool is_instance(oop obj) { |
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1180 return obj != NULL && is_subclass(obj->klass()); |
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1181 } |
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1182 |
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1183 // Accessors for code generation: |
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1184 static int target_offset_in_bytes() { return _target_offset; } |
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1185 }; |
| 710 | 1186 |
| 1187 | |
| 0 | 1188 // Interface to java.security.AccessControlContext objects |
| 1189 | |
| 1190 class java_security_AccessControlContext: AllStatic { | |
| 1191 private: | |
| 1192 // Note that for this class the layout changed between JDK1.2 and JDK1.3, | |
| 1193 // so we compute the offsets at startup rather than hard-wiring them. | |
| 1194 static int _context_offset; | |
| 1195 static int _privilegedContext_offset; | |
| 1196 static int _isPrivileged_offset; | |
| 11010 | 1197 static int _isAuthorized_offset; |
| 0 | 1198 |
| 1199 static void compute_offsets(); | |
| 1200 public: | |
| 1201 static oop create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS); | |
| 1202 | |
| 11010 | 1203 static bool is_authorized(Handle context); |
| 1204 | |
| 0 | 1205 // Debugging/initialization |
| 1206 friend class JavaClasses; | |
| 1207 }; | |
| 1208 | |
| 1209 | |
| 1210 // Interface to java.lang.ClassLoader objects | |
| 1211 | |
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1212 #define CLASSLOADER_INJECTED_FIELDS(macro) \ |
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1213 macro(java_lang_ClassLoader, loader_data, intptr_signature, false) |
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1214 |
| 0 | 1215 class java_lang_ClassLoader : AllStatic { |
| 1216 private: | |
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1217 // The fake offsets are added by the class loader when java.lang.Class is loaded |
| 0 | 1218 enum { |
| 1219 hc_parent_offset = 0 | |
| 1220 }; | |
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1221 static int _loader_data_offset; |
| 3938 | 1222 static bool offsets_computed; |
| 0 | 1223 static int parent_offset; |
| 3938 | 1224 static int parallelCapable_offset; |
| 1225 | |
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1226 public: |
| 3938 | 1227 static void compute_offsets(); |
| 0 | 1228 |
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1229 static ClassLoaderData** loader_data_addr(oop loader); |
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1230 static ClassLoaderData* loader_data(oop loader); |
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1231 |
| 0 | 1232 static oop parent(oop loader); |
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1233 static bool isAncestor(oop loader, oop cl); |
| 0 | 1234 |
| 3938 | 1235 // Support for parallelCapable field |
| 1236 static bool parallelCapable(oop the_class_mirror); | |
| 1237 | |
| 0 | 1238 static bool is_trusted_loader(oop loader); |
| 1239 | |
| 1240 // Fix for 4474172 | |
| 1241 static oop non_reflection_class_loader(oop loader); | |
| 1242 | |
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1243 // Testers |
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1244 static bool is_subclass(Klass* klass) { |
| 6983 | 1245 return klass->is_subclass_of(SystemDictionary::ClassLoader_klass()); |
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1246 } |
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1247 static bool is_instance(oop obj) { |
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1248 return obj != NULL && is_subclass(obj->klass()); |
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1249 } |
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1250 |
| 0 | 1251 // Debugging |
| 1252 friend class JavaClasses; | |
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1253 friend class ClassFileParser; // access to number_of_fake_fields |
| 0 | 1254 }; |
| 1255 | |
| 1256 | |
| 1257 // Interface to java.lang.System objects | |
| 1258 | |
| 1259 class java_lang_System : AllStatic { | |
| 1260 private: | |
| 1261 enum { | |
| 1262 hc_static_in_offset = 0, | |
| 1263 hc_static_out_offset = 1, | |
| 11010 | 1264 hc_static_err_offset = 2, |
| 1265 hc_static_security_offset = 3 | |
| 0 | 1266 }; |
| 1267 | |
| 1268 static int static_in_offset; | |
| 1269 static int static_out_offset; | |
| 1270 static int static_err_offset; | |
| 11010 | 1271 static int static_security_offset; |
| 0 | 1272 |
| 1273 public: | |
| 1274 static int in_offset_in_bytes(); | |
| 1275 static int out_offset_in_bytes(); | |
| 1276 static int err_offset_in_bytes(); | |
| 1277 | |
| 11010 | 1278 static bool has_security_manager(); |
| 1279 | |
| 0 | 1280 // Debugging |
| 1281 friend class JavaClasses; | |
| 1282 }; | |
| 1283 | |
| 1284 | |
| 1285 // Interface to java.lang.StackTraceElement objects | |
| 1286 | |
| 1287 class java_lang_StackTraceElement: AllStatic { | |
| 1288 private: | |
| 1289 enum { | |
| 1290 hc_declaringClass_offset = 0, | |
| 1291 hc_methodName_offset = 1, | |
| 1292 hc_fileName_offset = 2, | |
| 1293 hc_lineNumber_offset = 3 | |
| 1294 }; | |
| 1295 | |
| 1296 static int declaringClass_offset; | |
| 1297 static int methodName_offset; | |
| 1298 static int fileName_offset; | |
| 1299 static int lineNumber_offset; | |
| 1300 | |
| 1301 public: | |
| 1302 // Setters | |
| 1303 static void set_declaringClass(oop element, oop value); | |
| 1304 static void set_methodName(oop element, oop value); | |
| 1305 static void set_fileName(oop element, oop value); | |
| 1306 static void set_lineNumber(oop element, int value); | |
| 1307 | |
| 1308 // Create an instance of StackTraceElement | |
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1309 static oop create(Handle mirror, int method, int version, int bci, TRAPS); |
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1310 static oop create(methodHandle method, int bci, TRAPS); |
| 0 | 1311 |
| 1312 // Debugging | |
| 1313 friend class JavaClasses; | |
| 1314 }; | |
| 1315 | |
| 1316 | |
| 1317 // Interface to java.lang.AssertionStatusDirectives objects | |
| 1318 | |
| 1319 class java_lang_AssertionStatusDirectives: AllStatic { | |
| 1320 private: | |
| 1321 enum { | |
| 1322 hc_classes_offset, | |
| 1323 hc_classEnabled_offset, | |
| 1324 hc_packages_offset, | |
| 1325 hc_packageEnabled_offset, | |
| 1326 hc_deflt_offset | |
| 1327 }; | |
| 1328 | |
| 1329 static int classes_offset; | |
| 1330 static int classEnabled_offset; | |
| 1331 static int packages_offset; | |
| 1332 static int packageEnabled_offset; | |
| 1333 static int deflt_offset; | |
| 1334 | |
| 1335 public: | |
| 1336 // Setters | |
| 1337 static void set_classes(oop obj, oop val); | |
| 1338 static void set_classEnabled(oop obj, oop val); | |
| 1339 static void set_packages(oop obj, oop val); | |
| 1340 static void set_packageEnabled(oop obj, oop val); | |
| 1341 static void set_deflt(oop obj, bool val); | |
| 1342 // Debugging | |
| 1343 friend class JavaClasses; | |
| 1344 }; | |
| 1345 | |
| 1346 | |
| 1347 class java_nio_Buffer: AllStatic { | |
| 1348 private: | |
| 1349 static int _limit_offset; | |
| 1350 | |
| 1351 public: | |
| 1352 static int limit_offset(); | |
| 1353 static void compute_offsets(); | |
| 1354 }; | |
| 1355 | |
| 1356 class java_util_concurrent_locks_AbstractOwnableSynchronizer : AllStatic { | |
| 1357 private: | |
| 1358 static int _owner_offset; | |
| 1359 public: | |
| 1360 static void initialize(TRAPS); | |
| 1361 static oop get_owner_threadObj(oop obj); | |
| 1362 }; | |
| 1363 | |
| 3938 | 1364 // Use to declare fields that need to be injected into Java classes |
| 1365 // for the JVM to use. The name_index and signature_index are | |
| 1366 // declared in vmSymbols. The may_be_java flag is used to declare | |
| 1367 // fields that might already exist in Java but should be injected if | |
| 1368 // they don't. Otherwise the field is unconditionally injected and | |
| 1369 // the JVM uses the injected one. This is to ensure that name | |
| 1370 // collisions don't occur. In general may_be_java should be false | |
| 1371 // unless there's a good reason. | |
| 1372 | |
| 1373 class InjectedField { | |
| 1374 public: | |
| 1375 const SystemDictionary::WKID klass_id; | |
| 1376 const vmSymbols::SID name_index; | |
| 1377 const vmSymbols::SID signature_index; | |
| 1378 const bool may_be_java; | |
| 1379 | |
| 1380 | |
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1381 Klass* klass() const { return SystemDictionary::well_known_klass(klass_id); } |
| 3938 | 1382 Symbol* name() const { return lookup_symbol(name_index); } |
| 1383 Symbol* signature() const { return lookup_symbol(signature_index); } | |
| 1384 | |
| 1385 int compute_offset(); | |
| 1386 | |
| 1387 // Find the Symbol for this index | |
| 1388 static Symbol* lookup_symbol(int symbol_index) { | |
| 1389 return vmSymbols::symbol_at((vmSymbols::SID)symbol_index); | |
| 1390 } | |
| 1391 }; | |
| 1392 | |
| 1393 #define DECLARE_INJECTED_FIELD_ENUM(klass, name, signature, may_be_java) \ | |
| 1394 klass##_##name##_enum, | |
| 1395 | |
| 1396 #define ALL_INJECTED_FIELDS(macro) \ | |
| 1397 CLASS_INJECTED_FIELDS(macro) \ | |
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1398 CLASSLOADER_INJECTED_FIELDS(macro) \ |
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1399 MEMBERNAME_INJECTED_FIELDS(macro) |
| 3938 | 1400 |
| 0 | 1401 // Interface to hard-coded offset checking |
| 1402 | |
| 1403 class JavaClasses : AllStatic { | |
| 1404 private: | |
| 3938 | 1405 |
| 1406 static InjectedField _injected_fields[]; | |
| 1407 | |
| 0 | 1408 static bool check_offset(const char *klass_name, int offset, const char *field_name, const char* field_sig) PRODUCT_RETURN0; |
| 1409 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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1410 static bool check_constant(const char *klass_name, int constant, const char *field_name, const char* field_sig) PRODUCT_RETURN0; |
| 3938 | 1411 |
| 0 | 1412 public: |
| 3938 | 1413 enum InjectedFieldID { |
| 1414 ALL_INJECTED_FIELDS(DECLARE_INJECTED_FIELD_ENUM) | |
| 1415 MAX_enum | |
| 1416 }; | |
| 1417 | |
| 1418 static int compute_injected_offset(InjectedFieldID id); | |
| 1419 | |
| 0 | 1420 static void compute_hard_coded_offsets(); |
| 1421 static void compute_offsets(); | |
| 1422 static void check_offsets() PRODUCT_RETURN; | |
| 3938 | 1423 |
| 1424 static InjectedField* get_injected(Symbol* class_name, int* field_count); | |
| 0 | 1425 }; |
| 1972 | 1426 |
| 3938 | 1427 #undef DECLARE_INJECTED_FIELD_ENUM |
| 1428 | |
| 1972 | 1429 #endif // SHARE_VM_CLASSFILE_JAVACLASSES_HPP |