Mercurial > hg > graal-compiler
annotate src/share/vm/classfile/javaClasses.hpp @ 18041:52b4284cb496
Merge with jdk8u20-b26
| author | Gilles Duboscq <duboscq@ssw.jku.at> |
|---|---|
| date | Wed, 15 Oct 2014 16:02:50 +0200 |
| parents | 4ca6dc0799b6 9428a0b94204 |
| children | a4fbcdce06c8 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 17764 | 2 * Copyright (c) 1997, 2014, 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_offset(oop string, int offset) { |
| 65 assert(initialized, "Must be initialized"); | |
| 66 if (offset_offset > 0) { | |
| 67 string->int_field_put(offset_offset, offset); | |
| 68 } | |
| 69 } | |
| 70 static void set_count( oop string, int count) { | |
| 71 assert(initialized, "Must be initialized"); | |
| 72 if (count_offset > 0) { | |
| 73 string->int_field_put(count_offset, count); | |
| 74 } | |
| 75 } | |
| 0 | 76 |
| 77 public: | |
| 6057 | 78 static void compute_offsets(); |
| 79 | |
| 0 | 80 // Instance creation |
| 81 static Handle create_from_unicode(jchar* unicode, int len, TRAPS); | |
| 82 static oop create_oop_from_unicode(jchar* unicode, int len, TRAPS); | |
| 83 static Handle create_from_str(const char* utf8_str, TRAPS); | |
| 84 static oop create_oop_from_str(const char* utf8_str, TRAPS); | |
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85 static Handle create_from_symbol(Symbol* symbol, TRAPS); |
| 0 | 86 static Handle create_from_platform_dependent_str(const char* str, TRAPS); |
| 87 static Handle char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS); | |
| 88 | |
| 6057 | 89 static bool has_offset_field() { |
| 90 assert(initialized, "Must be initialized"); | |
| 91 return (offset_offset > 0); | |
| 92 } | |
| 93 | |
| 94 static bool has_count_field() { | |
| 95 assert(initialized, "Must be initialized"); | |
| 96 return (count_offset > 0); | |
| 97 } | |
| 98 | |
| 99 static bool has_hash_field() { | |
| 100 assert(initialized, "Must be initialized"); | |
| 101 return (hash_offset > 0); | |
| 102 } | |
| 103 | |
| 104 static int value_offset_in_bytes() { | |
| 105 assert(initialized && (value_offset > 0), "Must be initialized"); | |
| 106 return value_offset; | |
| 107 } | |
| 108 static int count_offset_in_bytes() { | |
| 109 assert(initialized && (count_offset > 0), "Must be initialized"); | |
| 110 return count_offset; | |
| 111 } | |
| 112 static int offset_offset_in_bytes() { | |
| 113 assert(initialized && (offset_offset > 0), "Must be initialized"); | |
| 114 return offset_offset; | |
| 115 } | |
| 116 static int hash_offset_in_bytes() { | |
| 117 assert(initialized && (hash_offset > 0), "Must be initialized"); | |
| 118 return hash_offset; | |
| 119 } | |
| 0 | 120 |
| 17764 | 121 static void set_value(oop string, typeArrayOop buffer) { |
| 122 assert(initialized && (value_offset > 0), "Must be initialized"); | |
| 123 string->obj_field_put(value_offset, (oop)buffer); | |
| 124 } | |
| 125 static void set_hash(oop string, unsigned int hash) { | |
| 126 assert(initialized && (hash_offset > 0), "Must be initialized"); | |
| 127 string->int_field_put(hash_offset, hash); | |
| 128 } | |
| 129 | |
| 0 | 130 // Accessors |
| 131 static typeArrayOop value(oop java_string) { | |
| 6057 | 132 assert(initialized && (value_offset > 0), "Must be initialized"); |
| 0 | 133 assert(is_instance(java_string), "must be java_string"); |
| 134 return (typeArrayOop) java_string->obj_field(value_offset); | |
| 135 } | |
| 17764 | 136 static unsigned int hash(oop java_string) { |
| 137 assert(initialized && (hash_offset > 0), "Must be initialized"); | |
| 138 assert(is_instance(java_string), "must be java_string"); | |
| 139 return java_string->int_field(hash_offset); | |
| 140 } | |
| 0 | 141 static int offset(oop java_string) { |
| 6057 | 142 assert(initialized, "Must be initialized"); |
| 0 | 143 assert(is_instance(java_string), "must be java_string"); |
| 6057 | 144 if (offset_offset > 0) { |
| 145 return java_string->int_field(offset_offset); | |
| 146 } else { | |
| 147 return 0; | |
| 148 } | |
| 0 | 149 } |
| 150 static int length(oop java_string) { | |
| 6057 | 151 assert(initialized, "Must be initialized"); |
| 0 | 152 assert(is_instance(java_string), "must be java_string"); |
| 6057 | 153 if (count_offset > 0) { |
| 154 return java_string->int_field(count_offset); | |
| 155 } else { | |
| 156 return ((typeArrayOop)java_string->obj_field(value_offset))->length(); | |
| 157 } | |
| 0 | 158 } |
| 159 static int utf8_length(oop java_string); | |
| 160 | |
| 161 // String converters | |
| 162 static char* as_utf8_string(oop java_string); | |
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163 static char* as_utf8_string(oop java_string, char* buf, int buflen); |
| 0 | 164 static char* as_utf8_string(oop java_string, int start, int len); |
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165 static char* as_platform_dependent_str(Handle java_string, TRAPS); |
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166 static jchar* as_unicode_string(oop java_string, int& length, TRAPS); |
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167 // produce an ascii string with all other values quoted using \u#### |
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168 static char* as_quoted_ascii(oop java_string); |
| 0 | 169 |
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170 // Compute the hash value for a java.lang.String object which would |
| 6162 | 171 // contain the characters passed in. |
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172 // |
| 6162 | 173 // As the hash value used by the String object itself, in |
| 174 // String.hashCode(). This value is normally calculated in Java code | |
| 175 // in the String.hashCode method(), but is precomputed for String | |
| 176 // objects in the shared archive file. | |
| 177 // hash P(31) from Kernighan & Ritchie | |
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178 // |
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179 // For this reason, THIS ALGORITHM MUST MATCH String.hashCode(). |
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180 template <typename T> static unsigned int hash_code(T* s, int len) { |
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181 unsigned int h = 0; |
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182 while (len-- > 0) { |
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183 h = 31*h + (unsigned int) *s; |
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184 s++; |
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185 } |
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186 return h; |
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187 } |
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188 static unsigned int hash_code(oop java_string); |
| 6162 | 189 |
| 190 // This is the string hash code used by the StringTable, which may be | |
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191 // the same as String.hashCode or an alternate hash code. |
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192 static unsigned int hash_string(oop java_string); |
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193 |
| 0 | 194 static bool equals(oop java_string, jchar* chars, int len); |
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195 static bool equals(oop str1, oop str2); |
| 0 | 196 |
| 197 // Conversion between '.' and '/' formats | |
| 198 static Handle externalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '/', '.', THREAD); } | |
| 199 static Handle internalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '.', '/', THREAD); } | |
| 200 | |
| 201 // Conversion | |
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202 static Symbol* as_symbol(Handle java_string, TRAPS); |
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203 static Symbol* as_symbol_or_null(oop java_string); |
| 0 | 204 |
| 205 // Testers | |
| 206 static bool is_instance(oop obj) { | |
| 1142 | 207 return obj != NULL && obj->klass() == SystemDictionary::String_klass(); |
| 0 | 208 } |
| 209 | |
| 210 // Debugging | |
| 211 static void print(Handle java_string, outputStream* st); | |
| 212 friend class JavaClasses; | |
| 213 }; | |
| 214 | |
| 215 | |
| 216 // Interface to java.lang.Class objects | |
| 217 | |
| 3938 | 218 #define CLASS_INJECTED_FIELDS(macro) \ |
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219 macro(java_lang_Class, klass, intptr_signature, false) \ |
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220 macro(java_lang_Class, array_klass, intptr_signature, false) \ |
| 3938 | 221 macro(java_lang_Class, oop_size, int_signature, false) \ |
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222 macro(java_lang_Class, static_oop_field_count, int_signature, false) \ |
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223 macro(java_lang_Class, protection_domain, object_signature, false) \ |
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224 macro(java_lang_Class, init_lock, object_signature, false) \ |
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225 macro(java_lang_Class, signers, object_signature, false) |
| 3938 | 226 |
| 0 | 227 class java_lang_Class : AllStatic { |
| 3938 | 228 friend class VMStructs; |
| 229 | |
| 0 | 230 private: |
| 231 // The fake offsets are added by the class loader when java.lang.Class is loaded | |
| 232 | |
| 3938 | 233 static int _klass_offset; |
| 234 static int _array_klass_offset; | |
| 0 | 235 |
| 3938 | 236 static int _oop_size_offset; |
| 237 static int _static_oop_field_count_offset; | |
| 0 | 238 |
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239 static int _protection_domain_offset; |
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240 static int _init_lock_offset; |
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241 static int _signers_offset; |
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242 |
| 0 | 243 static bool offsets_computed; |
| 244 static int classRedefinedCount_offset; | |
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245 static GrowableArray<Klass*>* _fixup_mirror_list; |
| 0 | 246 |
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247 static void set_init_lock(oop java_class, oop init_lock); |
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248 static void set_protection_domain(oop java_class, oop protection_domain); |
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249 static void initialize_mirror_fields(KlassHandle k, Handle mirror, Handle protection_domain, TRAPS); |
| 0 | 250 public: |
| 3938 | 251 static void compute_offsets(); |
| 252 | |
| 0 | 253 // Instance creation |
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254 static void create_mirror(KlassHandle k, Handle protection_domain, TRAPS); |
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255 static void fixup_mirror(KlassHandle k, TRAPS); |
| 0 | 256 static oop create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS); |
| 257 // Conversion | |
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258 static Klass* as_Klass(oop java_class); |
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259 static void set_klass(oop java_class, Klass* klass); |
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260 static BasicType as_BasicType(oop java_class, Klass** reference_klass = NULL); |
| 710 | 261 static BasicType as_BasicType(oop java_class, KlassHandle* reference_klass) { |
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262 Klass* refk_oop = NULL; |
| 710 | 263 BasicType result = as_BasicType(java_class, &refk_oop); |
| 264 (*reference_klass) = KlassHandle(refk_oop); | |
| 265 return result; | |
| 266 } | |
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267 static Symbol* as_signature(oop java_class, bool intern_if_not_found, TRAPS); |
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268 static void print_signature(oop java_class, outputStream *st); |
| 0 | 269 // Testing |
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270 static bool is_instance(oop obj) { |
| 1142 | 271 return obj != NULL && obj->klass() == SystemDictionary::Class_klass(); |
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272 } |
| 0 | 273 static bool is_primitive(oop java_class); |
| 274 static BasicType primitive_type(oop java_class); | |
| 275 static oop primitive_mirror(BasicType t); | |
| 276 // JVM_NewArray support | |
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277 static Klass* array_klass(oop java_class); |
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278 static void set_array_klass(oop java_class, Klass* klass); |
| 0 | 279 // compiler support for class operations |
| 3938 | 280 static int klass_offset_in_bytes() { return _klass_offset; } |
| 281 static int array_klass_offset_in_bytes() { return _array_klass_offset; } | |
| 0 | 282 // Support for classRedefinedCount field |
| 283 static int classRedefinedCount(oop the_class_mirror); | |
| 284 static void set_classRedefinedCount(oop the_class_mirror, int value); | |
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285 |
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286 // Support for embedded per-class oops |
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287 static oop protection_domain(oop java_class); |
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288 static oop init_lock(oop java_class); |
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289 static objArrayOop signers(oop java_class); |
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290 static void set_signers(oop java_class, objArrayOop signers); |
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291 |
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292 static int oop_size(oop java_class); |
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293 static void set_oop_size(oop java_class, int size); |
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294 static int static_oop_field_count(oop java_class); |
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295 static void set_static_oop_field_count(oop java_class, int size); |
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296 |
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297 static GrowableArray<Klass*>* fixup_mirror_list() { |
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298 return _fixup_mirror_list; |
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299 } |
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300 static void set_fixup_mirror_list(GrowableArray<Klass*>* v) { |
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301 _fixup_mirror_list = v; |
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302 } |
| 0 | 303 // Debugging |
| 304 friend class JavaClasses; | |
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305 friend class InstanceKlass; // verification code accesses offsets |
| 0 | 306 friend class ClassFileParser; // access to number_of_fake_fields |
| 307 }; | |
| 308 | |
| 309 // Interface to java.lang.Thread objects | |
| 310 | |
| 311 class java_lang_Thread : AllStatic { | |
| 312 private: | |
| 313 // Note that for this class the layout changed between JDK1.2 and JDK1.3, | |
| 314 // so we compute the offsets at startup rather than hard-wiring them. | |
| 315 static int _name_offset; | |
| 316 static int _group_offset; | |
| 317 static int _contextClassLoader_offset; | |
| 318 static int _inheritedAccessControlContext_offset; | |
| 319 static int _priority_offset; | |
| 320 static int _eetop_offset; | |
| 321 static int _daemon_offset; | |
| 322 static int _stillborn_offset; | |
| 323 static int _stackSize_offset; | |
| 324 static int _tid_offset; | |
| 325 static int _thread_status_offset; | |
| 326 static int _park_blocker_offset; | |
| 327 static int _park_event_offset ; | |
| 328 | |
| 329 static void compute_offsets(); | |
| 330 | |
| 331 public: | |
| 332 // Instance creation | |
| 333 static oop create(); | |
| 334 // Returns the JavaThread associated with the thread obj | |
| 335 static JavaThread* thread(oop java_thread); | |
| 336 // Set JavaThread for instance | |
| 337 static void set_thread(oop java_thread, JavaThread* thread); | |
| 338 // Name | |
| 339 static typeArrayOop name(oop java_thread); | |
| 340 static void set_name(oop java_thread, typeArrayOop name); | |
| 341 // Priority | |
| 342 static ThreadPriority priority(oop java_thread); | |
| 343 static void set_priority(oop java_thread, ThreadPriority priority); | |
| 344 // Thread group | |
| 345 static oop threadGroup(oop java_thread); | |
| 346 // Stillborn | |
| 347 static bool is_stillborn(oop java_thread); | |
| 348 static void set_stillborn(oop java_thread); | |
| 349 // Alive (NOTE: this is not really a field, but provides the correct | |
| 350 // definition without doing a Java call) | |
| 351 static bool is_alive(oop java_thread); | |
| 352 // Daemon | |
| 353 static bool is_daemon(oop java_thread); | |
| 354 static void set_daemon(oop java_thread); | |
| 355 // Context ClassLoader | |
| 356 static oop context_class_loader(oop java_thread); | |
| 357 // Control context | |
| 358 static oop inherited_access_control_context(oop java_thread); | |
| 359 // Stack size hint | |
| 360 static jlong stackSize(oop java_thread); | |
| 361 // Thread ID | |
| 362 static jlong thread_id(oop java_thread); | |
| 363 | |
| 364 // Blocker object responsible for thread parking | |
| 365 static oop park_blocker(oop java_thread); | |
| 366 | |
| 367 // Pointer to type-stable park handler, encoded as jlong. | |
| 368 // Should be set when apparently null | |
| 369 // For details, see unsafe.cpp Unsafe_Unpark | |
| 370 static jlong park_event(oop java_thread); | |
| 371 static bool set_park_event(oop java_thread, jlong ptr); | |
| 372 | |
| 373 // Java Thread Status for JVMTI and M&M use. | |
| 374 // This thread status info is saved in threadStatus field of | |
| 375 // java.lang.Thread java class. | |
| 376 enum ThreadStatus { | |
| 377 NEW = 0, | |
| 378 RUNNABLE = JVMTI_THREAD_STATE_ALIVE + // runnable / running | |
| 379 JVMTI_THREAD_STATE_RUNNABLE, | |
| 380 SLEEPING = JVMTI_THREAD_STATE_ALIVE + // Thread.sleep() | |
| 381 JVMTI_THREAD_STATE_WAITING + | |
| 382 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + | |
| 383 JVMTI_THREAD_STATE_SLEEPING, | |
| 384 IN_OBJECT_WAIT = JVMTI_THREAD_STATE_ALIVE + // Object.wait() | |
| 385 JVMTI_THREAD_STATE_WAITING + | |
| 386 JVMTI_THREAD_STATE_WAITING_INDEFINITELY + | |
| 387 JVMTI_THREAD_STATE_IN_OBJECT_WAIT, | |
| 388 IN_OBJECT_WAIT_TIMED = JVMTI_THREAD_STATE_ALIVE + // Object.wait(long) | |
| 389 JVMTI_THREAD_STATE_WAITING + | |
| 390 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + | |
| 391 JVMTI_THREAD_STATE_IN_OBJECT_WAIT, | |
| 392 PARKED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park() | |
| 393 JVMTI_THREAD_STATE_WAITING + | |
| 394 JVMTI_THREAD_STATE_WAITING_INDEFINITELY + | |
| 395 JVMTI_THREAD_STATE_PARKED, | |
| 396 PARKED_TIMED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park(long) | |
| 397 JVMTI_THREAD_STATE_WAITING + | |
| 398 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + | |
| 399 JVMTI_THREAD_STATE_PARKED, | |
| 400 BLOCKED_ON_MONITOR_ENTER = JVMTI_THREAD_STATE_ALIVE + // (re-)entering a synchronization block | |
| 401 JVMTI_THREAD_STATE_BLOCKED_ON_MONITOR_ENTER, | |
| 402 TERMINATED = JVMTI_THREAD_STATE_TERMINATED | |
| 403 }; | |
| 404 // Write thread status info to threadStatus field of java.lang.Thread. | |
| 405 static void set_thread_status(oop java_thread_oop, ThreadStatus status); | |
| 406 // Read thread status info from threadStatus field of java.lang.Thread. | |
| 407 static ThreadStatus get_thread_status(oop java_thread_oop); | |
| 408 | |
| 409 static const char* thread_status_name(oop java_thread_oop); | |
| 410 | |
| 411 // Debugging | |
| 412 friend class JavaClasses; | |
| 413 }; | |
| 414 | |
| 415 // Interface to java.lang.ThreadGroup objects | |
| 416 | |
| 417 class java_lang_ThreadGroup : AllStatic { | |
| 418 private: | |
| 419 static int _parent_offset; | |
| 420 static int _name_offset; | |
| 421 static int _threads_offset; | |
| 422 static int _groups_offset; | |
| 423 static int _maxPriority_offset; | |
| 424 static int _destroyed_offset; | |
| 425 static int _daemon_offset; | |
| 426 static int _vmAllowSuspension_offset; | |
| 427 static int _nthreads_offset; | |
| 428 static int _ngroups_offset; | |
| 429 | |
| 430 static void compute_offsets(); | |
| 431 | |
| 432 public: | |
| 433 // parent ThreadGroup | |
| 434 static oop parent(oop java_thread_group); | |
| 435 // name | |
| 436 static typeArrayOop name(oop java_thread_group); | |
| 437 // ("name as oop" accessor is not necessary) | |
| 438 // Number of threads in group | |
| 439 static int nthreads(oop java_thread_group); | |
| 440 // threads | |
| 441 static objArrayOop threads(oop java_thread_group); | |
| 442 // Number of threads in group | |
| 443 static int ngroups(oop java_thread_group); | |
| 444 // groups | |
| 445 static objArrayOop groups(oop java_thread_group); | |
| 446 // maxPriority in group | |
| 447 static ThreadPriority maxPriority(oop java_thread_group); | |
| 448 // Destroyed | |
| 449 static bool is_destroyed(oop java_thread_group); | |
| 450 // Daemon | |
| 451 static bool is_daemon(oop java_thread_group); | |
| 452 // vmAllowSuspension | |
| 453 static bool is_vmAllowSuspension(oop java_thread_group); | |
| 454 // Debugging | |
| 455 friend class JavaClasses; | |
| 456 }; | |
| 457 | |
| 458 | |
| 459 | |
| 460 // Interface to java.lang.Throwable objects | |
| 461 | |
| 462 class java_lang_Throwable: AllStatic { | |
| 463 friend class BacktraceBuilder; | |
| 464 | |
| 465 private: | |
| 466 // Offsets | |
| 467 enum { | |
| 468 hc_backtrace_offset = 0, | |
| 469 hc_detailMessage_offset = 1, | |
| 470 hc_cause_offset = 2, // New since 1.4 | |
| 471 hc_stackTrace_offset = 3 // New since 1.4 | |
| 472 }; | |
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473 enum { |
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474 hc_static_unassigned_stacktrace_offset = 0 // New since 1.7 |
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475 }; |
| 0 | 476 // Trace constants |
| 477 enum { | |
| 478 trace_methods_offset = 0, | |
| 479 trace_bcis_offset = 1, | |
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480 trace_mirrors_offset = 2, |
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481 trace_next_offset = 3, |
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482 trace_size = 4, |
| 0 | 483 trace_chunk_size = 32 |
| 484 }; | |
| 485 | |
| 486 static int backtrace_offset; | |
| 487 static int detailMessage_offset; | |
| 488 static int cause_offset; | |
| 489 static int stackTrace_offset; | |
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490 static int static_unassigned_stacktrace_offset; |
| 0 | 491 |
| 492 // Printing | |
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493 static char* print_stack_element_to_buffer(Handle mirror, int method, int version, int bci); |
| 0 | 494 // StackTrace (programmatic access, new since 1.4) |
| 495 static void clear_stacktrace(oop throwable); | |
| 496 // No stack trace available | |
| 497 static const char* no_stack_trace_message(); | |
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498 // Stacktrace (post JDK 1.7.0 to allow immutability protocol to be followed) |
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499 static void set_stacktrace(oop throwable, oop st_element_array); |
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500 static oop unassigned_stacktrace(); |
| 0 | 501 |
| 502 public: | |
| 503 // Backtrace | |
| 504 static oop backtrace(oop throwable); | |
| 505 static void set_backtrace(oop throwable, oop value); | |
| 506 // Needed by JVMTI to filter out this internal field. | |
| 507 static int get_backtrace_offset() { return backtrace_offset;} | |
| 508 static int get_detailMessage_offset() { return detailMessage_offset;} | |
| 509 // Message | |
| 510 static oop message(oop throwable); | |
| 511 static oop message(Handle throwable); | |
| 512 static void set_message(oop throwable, oop value); | |
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513 static void print_stack_element(outputStream *st, Handle mirror, int method, |
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514 int version, int bci); |
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515 static void print_stack_element(outputStream *st, methodHandle method, int bci); |
| 0 | 516 static void print_stack_usage(Handle stream); |
| 517 | |
| 518 // Allocate space for backtrace (created but stack trace not filled in) | |
| 519 static void allocate_backtrace(Handle throwable, TRAPS); | |
| 520 // Fill in current stack trace for throwable with preallocated backtrace (no GC) | |
| 521 static void fill_in_stack_trace_of_preallocated_backtrace(Handle throwable); | |
| 522 // Fill in current stack trace, can cause GC | |
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523 static void fill_in_stack_trace(Handle throwable, methodHandle method, TRAPS); |
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524 static void fill_in_stack_trace(Handle throwable, methodHandle method = methodHandle()); |
| 0 | 525 // Programmatic access to stack trace |
| 526 static oop get_stack_trace_element(oop throwable, int index, TRAPS); | |
| 527 static int get_stack_trace_depth(oop throwable, TRAPS); | |
| 528 // Printing | |
| 529 static void print(oop throwable, outputStream* st); | |
| 530 static void print(Handle throwable, outputStream* st); | |
| 531 static void print_stack_trace(oop throwable, outputStream* st); | |
| 532 // Debugging | |
| 533 friend class JavaClasses; | |
| 534 }; | |
| 535 | |
| 536 | |
| 537 // Interface to java.lang.reflect.AccessibleObject objects | |
| 538 | |
| 539 class java_lang_reflect_AccessibleObject: AllStatic { | |
| 540 private: | |
| 541 // Note that to reduce dependencies on the JDK we compute these | |
| 542 // offsets at run-time. | |
| 543 static int override_offset; | |
| 544 | |
| 545 static void compute_offsets(); | |
| 546 | |
| 547 public: | |
| 548 // Accessors | |
| 549 static jboolean override(oop reflect); | |
| 550 static void set_override(oop reflect, jboolean value); | |
| 551 | |
| 552 // Debugging | |
| 553 friend class JavaClasses; | |
| 554 }; | |
| 555 | |
| 556 | |
| 557 // Interface to java.lang.reflect.Method objects | |
| 558 | |
| 559 class java_lang_reflect_Method : public java_lang_reflect_AccessibleObject { | |
| 560 private: | |
| 561 // Note that to reduce dependencies on the JDK we compute these | |
| 562 // offsets at run-time. | |
| 563 static int clazz_offset; | |
| 564 static int name_offset; | |
| 565 static int returnType_offset; | |
| 566 static int parameterTypes_offset; | |
| 567 static int exceptionTypes_offset; | |
| 568 static int slot_offset; | |
| 569 static int modifiers_offset; | |
| 570 static int signature_offset; | |
| 571 static int annotations_offset; | |
| 572 static int parameter_annotations_offset; | |
| 573 static int annotation_default_offset; | |
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574 static int type_annotations_offset; |
| 0 | 575 |
| 576 static void compute_offsets(); | |
| 577 | |
| 578 public: | |
| 579 // Allocation | |
| 580 static Handle create(TRAPS); | |
| 581 | |
| 582 // Accessors | |
| 583 static oop clazz(oop reflect); | |
| 584 static void set_clazz(oop reflect, oop value); | |
| 585 | |
| 586 static oop name(oop method); | |
| 587 static void set_name(oop method, oop value); | |
| 588 | |
| 589 static oop return_type(oop method); | |
| 590 static void set_return_type(oop method, oop value); | |
| 591 | |
| 592 static oop parameter_types(oop method); | |
| 593 static void set_parameter_types(oop method, oop value); | |
| 594 | |
| 595 static oop exception_types(oop method); | |
| 596 static void set_exception_types(oop method, oop value); | |
| 597 | |
| 598 static int slot(oop reflect); | |
| 599 static void set_slot(oop reflect, int value); | |
| 600 | |
| 601 static int modifiers(oop method); | |
| 602 static void set_modifiers(oop method, int value); | |
| 603 | |
| 604 static bool has_signature_field(); | |
| 605 static oop signature(oop method); | |
| 606 static void set_signature(oop method, oop value); | |
| 607 | |
| 608 static bool has_annotations_field(); | |
| 609 static oop annotations(oop method); | |
| 610 static void set_annotations(oop method, oop value); | |
| 611 | |
| 612 static bool has_parameter_annotations_field(); | |
| 613 static oop parameter_annotations(oop method); | |
| 614 static void set_parameter_annotations(oop method, oop value); | |
| 615 | |
| 616 static bool has_annotation_default_field(); | |
| 617 static oop annotation_default(oop method); | |
| 618 static void set_annotation_default(oop method, oop value); | |
| 619 | |
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620 static bool has_type_annotations_field(); |
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621 static oop type_annotations(oop method); |
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622 static void set_type_annotations(oop method, oop value); |
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623 |
| 0 | 624 // Debugging |
| 625 friend class JavaClasses; | |
| 626 }; | |
| 627 | |
| 628 | |
| 629 // Interface to java.lang.reflect.Constructor objects | |
| 630 | |
| 631 class java_lang_reflect_Constructor : public java_lang_reflect_AccessibleObject { | |
| 632 private: | |
| 633 // Note that to reduce dependencies on the JDK we compute these | |
| 634 // offsets at run-time. | |
| 635 static int clazz_offset; | |
| 636 static int parameterTypes_offset; | |
| 637 static int exceptionTypes_offset; | |
| 638 static int slot_offset; | |
| 639 static int modifiers_offset; | |
| 640 static int signature_offset; | |
| 641 static int annotations_offset; | |
| 642 static int parameter_annotations_offset; | |
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643 static int type_annotations_offset; |
| 0 | 644 |
| 645 static void compute_offsets(); | |
| 646 | |
| 647 public: | |
| 648 // Allocation | |
| 649 static Handle create(TRAPS); | |
| 650 | |
| 651 // Accessors | |
| 652 static oop clazz(oop reflect); | |
| 653 static void set_clazz(oop reflect, oop value); | |
| 654 | |
| 655 static oop parameter_types(oop constructor); | |
| 656 static void set_parameter_types(oop constructor, oop value); | |
| 657 | |
| 658 static oop exception_types(oop constructor); | |
| 659 static void set_exception_types(oop constructor, oop value); | |
| 660 | |
| 661 static int slot(oop reflect); | |
| 662 static void set_slot(oop reflect, int value); | |
| 663 | |
| 664 static int modifiers(oop constructor); | |
| 665 static void set_modifiers(oop constructor, int value); | |
| 666 | |
| 667 static bool has_signature_field(); | |
| 668 static oop signature(oop constructor); | |
| 669 static void set_signature(oop constructor, oop value); | |
| 670 | |
| 671 static bool has_annotations_field(); | |
| 672 static oop annotations(oop constructor); | |
| 673 static void set_annotations(oop constructor, oop value); | |
| 674 | |
| 675 static bool has_parameter_annotations_field(); | |
| 676 static oop parameter_annotations(oop method); | |
| 677 static void set_parameter_annotations(oop method, oop value); | |
| 678 | |
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679 static bool has_type_annotations_field(); |
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680 static oop type_annotations(oop constructor); |
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681 static void set_type_annotations(oop constructor, oop value); |
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682 |
| 0 | 683 // Debugging |
| 684 friend class JavaClasses; | |
| 685 }; | |
| 686 | |
| 687 | |
| 688 // Interface to java.lang.reflect.Field objects | |
| 689 | |
| 690 class java_lang_reflect_Field : public java_lang_reflect_AccessibleObject { | |
| 691 private: | |
| 692 // Note that to reduce dependencies on the JDK we compute these | |
| 693 // offsets at run-time. | |
| 694 static int clazz_offset; | |
| 695 static int name_offset; | |
| 696 static int type_offset; | |
| 697 static int slot_offset; | |
| 698 static int modifiers_offset; | |
| 699 static int signature_offset; | |
| 700 static int annotations_offset; | |
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701 static int type_annotations_offset; |
| 0 | 702 |
| 703 static void compute_offsets(); | |
| 704 | |
| 705 public: | |
| 706 // Allocation | |
| 707 static Handle create(TRAPS); | |
| 708 | |
| 709 // Accessors | |
| 710 static oop clazz(oop reflect); | |
| 711 static void set_clazz(oop reflect, oop value); | |
| 712 | |
| 713 static oop name(oop field); | |
| 714 static void set_name(oop field, oop value); | |
| 715 | |
| 716 static oop type(oop field); | |
| 717 static void set_type(oop field, oop value); | |
| 718 | |
| 719 static int slot(oop reflect); | |
| 720 static void set_slot(oop reflect, int value); | |
| 721 | |
| 722 static int modifiers(oop field); | |
| 723 static void set_modifiers(oop field, int value); | |
| 724 | |
| 725 static bool has_signature_field(); | |
| 726 static oop signature(oop constructor); | |
| 727 static void set_signature(oop constructor, oop value); | |
| 728 | |
| 729 static bool has_annotations_field(); | |
| 730 static oop annotations(oop constructor); | |
| 731 static void set_annotations(oop constructor, oop value); | |
| 732 | |
| 733 static bool has_parameter_annotations_field(); | |
| 734 static oop parameter_annotations(oop method); | |
| 735 static void set_parameter_annotations(oop method, oop value); | |
| 736 | |
| 737 static bool has_annotation_default_field(); | |
| 738 static oop annotation_default(oop method); | |
| 739 static void set_annotation_default(oop method, oop value); | |
| 740 | |
|
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741 static bool has_type_annotations_field(); |
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742 static oop type_annotations(oop field); |
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743 static void set_type_annotations(oop field, oop value); |
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744 |
| 0 | 745 // Debugging |
| 746 friend class JavaClasses; | |
| 747 }; | |
| 748 | |
|
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749 class java_lang_reflect_Parameter { |
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750 private: |
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751 // Note that to reduce dependencies on the JDK we compute these |
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752 // offsets at run-time. |
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753 static int name_offset; |
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754 static int modifiers_offset; |
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755 static int index_offset; |
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756 static int executable_offset; |
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757 |
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758 static void compute_offsets(); |
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759 |
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760 public: |
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761 // Allocation |
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762 static Handle create(TRAPS); |
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763 |
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764 // Accessors |
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765 static oop name(oop field); |
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766 static void set_name(oop field, oop value); |
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767 |
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768 static int index(oop reflect); |
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769 static void set_index(oop reflect, int value); |
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770 |
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771 static int modifiers(oop reflect); |
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772 static void set_modifiers(oop reflect, int value); |
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773 |
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774 static oop executable(oop constructor); |
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775 static void set_executable(oop constructor, oop value); |
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776 |
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777 friend class JavaClasses; |
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778 }; |
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779 |
| 0 | 780 // Interface to sun.reflect.ConstantPool objects |
| 781 class sun_reflect_ConstantPool { | |
| 782 private: | |
| 783 // Note that to reduce dependencies on the JDK we compute these | |
| 784 // offsets at run-time. | |
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785 static int _oop_offset; |
| 0 | 786 |
| 787 static void compute_offsets(); | |
| 788 | |
| 789 public: | |
| 790 // Allocation | |
| 791 static Handle create(TRAPS); | |
| 792 | |
| 793 // Accessors | |
|
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794 static void set_cp(oop reflect, ConstantPool* value); |
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795 static int oop_offset() { |
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796 return _oop_offset; |
| 0 | 797 } |
| 798 | |
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799 static ConstantPool* get_cp(oop reflect); |
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800 |
| 0 | 801 // Debugging |
| 802 friend class JavaClasses; | |
| 803 }; | |
| 804 | |
| 805 // Interface to sun.reflect.UnsafeStaticFieldAccessorImpl objects | |
| 806 class sun_reflect_UnsafeStaticFieldAccessorImpl { | |
| 807 private: | |
| 808 static int _base_offset; | |
| 809 static void compute_offsets(); | |
| 810 | |
| 811 public: | |
| 812 static int base_offset() { | |
| 813 return _base_offset; | |
| 814 } | |
| 815 | |
| 816 // Debugging | |
| 817 friend class JavaClasses; | |
| 818 }; | |
| 819 | |
| 820 // Interface to java.lang primitive type boxing objects: | |
| 821 // - java.lang.Boolean | |
| 822 // - java.lang.Character | |
| 823 // - java.lang.Float | |
| 824 // - java.lang.Double | |
| 825 // - java.lang.Byte | |
| 826 // - java.lang.Short | |
| 827 // - java.lang.Integer | |
| 828 // - java.lang.Long | |
| 829 | |
| 830 // This could be separated out into 8 individual classes. | |
| 831 | |
| 832 class java_lang_boxing_object: AllStatic { | |
| 833 private: | |
| 834 enum { | |
| 835 hc_value_offset = 0 | |
| 836 }; | |
| 837 static int value_offset; | |
|
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838 static int long_value_offset; |
| 0 | 839 |
|
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840 static oop initialize_and_allocate(BasicType type, TRAPS); |
| 0 | 841 public: |
| 842 // Allocation. Returns a boxed value, or NULL for invalid type. | |
| 843 static oop create(BasicType type, jvalue* value, TRAPS); | |
| 844 // Accessors. Returns the basic type being boxed, or T_ILLEGAL for invalid oop. | |
| 845 static BasicType get_value(oop box, jvalue* value); | |
| 846 static BasicType set_value(oop box, jvalue* value); | |
|
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847 static BasicType basic_type(oop box); |
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848 static bool is_instance(oop box) { return basic_type(box) != T_ILLEGAL; } |
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849 static bool is_instance(oop box, BasicType type) { return basic_type(box) == type; } |
|
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850 static void print(oop box, outputStream* st) { jvalue value; print(get_value(box, &value), &value, st); } |
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851 static void print(BasicType type, jvalue* value, outputStream* st); |
| 0 | 852 |
|
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853 static int value_offset_in_bytes(BasicType type) { |
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854 return ( type == T_LONG || type == T_DOUBLE ) ? long_value_offset : |
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855 value_offset; |
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856 } |
| 0 | 857 |
| 858 // Debugging | |
| 859 friend class JavaClasses; | |
| 860 }; | |
| 861 | |
| 862 | |
| 863 | |
| 864 // Interface to java.lang.ref.Reference objects | |
| 865 | |
| 866 class java_lang_ref_Reference: AllStatic { | |
| 867 public: | |
| 868 enum { | |
| 869 hc_referent_offset = 0, | |
| 870 hc_queue_offset = 1, | |
| 871 hc_next_offset = 2, | |
| 872 hc_discovered_offset = 3 // Is not last, see SoftRefs. | |
| 873 }; | |
| 874 enum { | |
| 875 hc_static_lock_offset = 0, | |
| 876 hc_static_pending_offset = 1 | |
| 877 }; | |
| 878 | |
| 879 static int referent_offset; | |
| 880 static int queue_offset; | |
| 881 static int next_offset; | |
| 882 static int discovered_offset; | |
| 883 static int static_lock_offset; | |
| 884 static int static_pending_offset; | |
| 885 static int number_of_fake_oop_fields; | |
| 886 | |
| 887 // Accessors | |
|
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888 static oop referent(oop ref) { |
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889 return ref->obj_field(referent_offset); |
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890 } |
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891 static void set_referent(oop ref, oop value) { |
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892 ref->obj_field_put(referent_offset, value); |
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893 } |
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894 static void set_referent_raw(oop ref, oop value) { |
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895 ref->obj_field_put_raw(referent_offset, value); |
|
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896 } |
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897 static HeapWord* referent_addr(oop ref) { |
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898 return ref->obj_field_addr<HeapWord>(referent_offset); |
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899 } |
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900 static oop next(oop ref) { |
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901 return ref->obj_field(next_offset); |
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902 } |
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903 static void set_next(oop ref, oop value) { |
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904 ref->obj_field_put(next_offset, value); |
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905 } |
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906 static void set_next_raw(oop ref, oop value) { |
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907 ref->obj_field_put_raw(next_offset, value); |
|
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908 } |
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909 static HeapWord* next_addr(oop ref) { |
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910 return ref->obj_field_addr<HeapWord>(next_offset); |
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911 } |
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912 static oop discovered(oop ref) { |
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913 return ref->obj_field(discovered_offset); |
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914 } |
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915 static void set_discovered(oop ref, oop value) { |
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916 ref->obj_field_put(discovered_offset, value); |
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917 } |
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918 static void set_discovered_raw(oop ref, oop value) { |
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919 ref->obj_field_put_raw(discovered_offset, value); |
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920 } |
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921 static HeapWord* discovered_addr(oop ref) { |
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922 return ref->obj_field_addr<HeapWord>(discovered_offset); |
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923 } |
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924 // Accessors for statics |
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925 static oop pending_list_lock(); |
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926 static oop pending_list(); |
| 0 | 927 |
|
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928 static HeapWord* pending_list_lock_addr(); |
|
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929 static HeapWord* pending_list_addr(); |
| 0 | 930 }; |
| 931 | |
| 932 | |
| 933 // Interface to java.lang.ref.SoftReference objects | |
| 934 | |
| 935 class java_lang_ref_SoftReference: public java_lang_ref_Reference { | |
| 936 public: | |
| 937 enum { | |
| 938 // The timestamp is a long field and may need to be adjusted for alignment. | |
|
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939 hc_timestamp_offset = hc_discovered_offset + 1 |
| 0 | 940 }; |
| 941 enum { | |
| 942 hc_static_clock_offset = 0 | |
| 943 }; | |
| 944 | |
| 945 static int timestamp_offset; | |
| 946 static int static_clock_offset; | |
| 947 | |
| 948 // Accessors | |
| 949 static jlong timestamp(oop ref); | |
| 950 | |
| 951 // Accessors for statics | |
| 952 static jlong clock(); | |
| 953 static void set_clock(jlong value); | |
| 954 }; | |
| 955 | |
| 956 | |
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957 // Interface to java.lang.invoke.MethodHandle objects |
| 710 | 958 |
| 959 class MethodHandleEntry; | |
| 960 | |
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961 class java_lang_invoke_MethodHandle: AllStatic { |
| 710 | 962 friend class JavaClasses; |
| 963 | |
| 964 private: | |
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965 static int _type_offset; // the MethodType of this MH |
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966 static int _form_offset; // the LambdaForm of this MH |
| 710 | 967 |
| 968 static void compute_offsets(); | |
| 969 | |
| 970 public: | |
| 971 // Accessors | |
| 972 static oop type(oop mh); | |
| 973 static void set_type(oop mh, oop mtype); | |
| 974 | |
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975 static oop form(oop mh); |
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976 static void set_form(oop mh, oop lform); |
| 710 | 977 |
| 978 // Testers | |
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979 static bool is_subclass(Klass* klass) { |
| 6983 | 980 return klass->is_subclass_of(SystemDictionary::MethodHandle_klass()); |
| 710 | 981 } |
| 982 static bool is_instance(oop obj) { | |
| 983 return obj != NULL && is_subclass(obj->klass()); | |
| 984 } | |
| 985 | |
| 986 // Accessors for code generation: | |
| 987 static int type_offset_in_bytes() { return _type_offset; } | |
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988 static int form_offset_in_bytes() { return _form_offset; } |
| 710 | 989 }; |
| 990 | |
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991 // Interface to java.lang.invoke.DirectMethodHandle objects |
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992 |
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993 class java_lang_invoke_DirectMethodHandle: AllStatic { |
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994 friend class JavaClasses; |
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995 |
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996 private: |
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997 static int _member_offset; // the MemberName of this DMH |
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998 |
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999 static void compute_offsets(); |
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1000 |
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1001 public: |
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1002 // Accessors |
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1003 static oop member(oop mh); |
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1004 |
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1005 // Testers |
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1006 static bool is_subclass(Klass* klass) { |
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1007 return klass->is_subclass_of(SystemDictionary::DirectMethodHandle_klass()); |
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1008 } |
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1009 static bool is_instance(oop obj) { |
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1010 return obj != NULL && is_subclass(obj->klass()); |
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1011 } |
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1012 |
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1013 // Accessors for code generation: |
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1014 static int member_offset_in_bytes() { return _member_offset; } |
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1015 }; |
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1016 |
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1017 // Interface to java.lang.invoke.LambdaForm objects |
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1018 // (These are a private interface for managing adapter code generation.) |
| 3938 | 1019 |
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1020 class java_lang_invoke_LambdaForm: AllStatic { |
| 710 | 1021 friend class JavaClasses; |
| 1022 | |
| 1023 private: | |
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1024 static int _vmentry_offset; // type is MemberName |
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1025 |
| 710 | 1026 static void compute_offsets(); |
| 1027 | |
| 1028 public: | |
| 1029 // Accessors | |
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1030 static oop vmentry(oop lform); |
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1031 static void set_vmentry(oop lform, oop invoker); |
| 710 | 1032 |
| 1033 // Testers | |
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1034 static bool is_subclass(Klass* klass) { |
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1035 return SystemDictionary::LambdaForm_klass() != NULL && |
| 6983 | 1036 klass->is_subclass_of(SystemDictionary::LambdaForm_klass()); |
| 710 | 1037 } |
| 1038 static bool is_instance(oop obj) { | |
| 1039 return obj != NULL && is_subclass(obj->klass()); | |
| 1040 } | |
| 1041 | |
| 1042 // Accessors for code generation: | |
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1043 static int vmentry_offset_in_bytes() { return _vmentry_offset; } |
| 710 | 1044 }; |
| 1045 | |
|
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1046 |
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1047 // Interface to java.lang.invoke.MemberName objects |
| 710 | 1048 // (These are a private interface for Java code to query the class hierarchy.) |
| 1049 | |
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1050 #define MEMBERNAME_INJECTED_FIELDS(macro) \ |
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1051 macro(java_lang_invoke_MemberName, vmloader, object_signature, false) \ |
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1052 macro(java_lang_invoke_MemberName, vmindex, intptr_signature, false) \ |
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1053 macro(java_lang_invoke_MemberName, vmtarget, intptr_signature, false) |
| 3938 | 1054 |
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1055 class java_lang_invoke_MemberName: AllStatic { |
| 710 | 1056 friend class JavaClasses; |
| 1057 | |
| 1058 private: | |
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1059 // From java.lang.invoke.MemberName: |
| 710 | 1060 // private Class<?> clazz; // class in which the method is defined |
| 1061 // private String name; // may be null if not yet materialized | |
| 1062 // private Object type; // may be null if not yet materialized | |
| 1063 // private int flags; // modifier bits; see reflect.Modifier | |
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1064 // private intptr vmtarget; // VM-specific target value |
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1065 // private intptr_t vmindex; // member index within class or interface |
| 710 | 1066 static int _clazz_offset; |
| 1067 static int _name_offset; | |
| 1068 static int _type_offset; | |
| 1069 static int _flags_offset; | |
| 1070 static int _vmtarget_offset; | |
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1071 static int _vmloader_offset; |
| 710 | 1072 static int _vmindex_offset; |
| 1073 | |
| 1074 static void compute_offsets(); | |
| 1075 | |
| 1076 public: | |
| 1077 // Accessors | |
| 1078 static oop clazz(oop mname); | |
| 1079 static void set_clazz(oop mname, oop clazz); | |
| 1080 | |
| 1081 static oop type(oop mname); | |
| 1082 static void set_type(oop mname, oop type); | |
| 1083 | |
| 1084 static oop name(oop mname); | |
| 1085 static void set_name(oop mname, oop name); | |
| 1086 | |
| 1087 static int flags(oop mname); | |
| 1088 static void set_flags(oop mname, int flags); | |
| 1089 | |
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1090 static Metadata* vmtarget(oop mname); |
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1091 static void set_vmtarget(oop mname, Metadata* target); |
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1092 #if INCLUDE_JVMTI |
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1093 static void adjust_vmtarget(oop mname, Metadata* target); |
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1094 #endif // INCLUDE_JVMTI |
| 710 | 1095 |
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1096 static intptr_t vmindex(oop mname); |
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1097 static void set_vmindex(oop mname, intptr_t index); |
| 710 | 1098 |
| 1099 // Testers | |
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1100 static bool is_subclass(Klass* klass) { |
| 6983 | 1101 return klass->is_subclass_of(SystemDictionary::MemberName_klass()); |
| 710 | 1102 } |
| 1103 static bool is_instance(oop obj) { | |
| 1104 return obj != NULL && is_subclass(obj->klass()); | |
| 1105 } | |
| 1106 | |
| 1107 // Relevant integer codes (keep these in synch. with MethodHandleNatives.Constants): | |
| 1108 enum { | |
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1109 MN_IS_METHOD = 0x00010000, // method (not constructor) |
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1110 MN_IS_CONSTRUCTOR = 0x00020000, // constructor |
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1111 MN_IS_FIELD = 0x00040000, // field |
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1112 MN_IS_TYPE = 0x00080000, // nested type |
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1113 MN_CALLER_SENSITIVE = 0x00100000, // @CallerSensitive annotation detected |
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1114 MN_REFERENCE_KIND_SHIFT = 24, // refKind |
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1115 MN_REFERENCE_KIND_MASK = 0x0F000000 >> MN_REFERENCE_KIND_SHIFT, |
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1116 // The SEARCH_* bits are not for MN.flags but for the matchFlags argument of MHN.getMembers: |
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1117 MN_SEARCH_SUPERCLASSES = 0x00100000, // walk super classes |
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1118 MN_SEARCH_INTERFACES = 0x00200000 // walk implemented interfaces |
| 710 | 1119 }; |
| 1120 | |
| 1121 // Accessors for code generation: | |
| 1122 static int clazz_offset_in_bytes() { return _clazz_offset; } | |
| 1123 static int type_offset_in_bytes() { return _type_offset; } | |
| 1124 static int name_offset_in_bytes() { return _name_offset; } | |
| 1125 static int flags_offset_in_bytes() { return _flags_offset; } | |
| 1126 static int vmtarget_offset_in_bytes() { return _vmtarget_offset; } | |
| 1127 static int vmindex_offset_in_bytes() { return _vmindex_offset; } | |
| 1128 }; | |
| 1129 | |
| 1130 | |
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1131 // Interface to java.lang.invoke.MethodType objects |
| 710 | 1132 |
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1133 class java_lang_invoke_MethodType: AllStatic { |
| 710 | 1134 friend class JavaClasses; |
| 1135 | |
| 1136 private: | |
| 1137 static int _rtype_offset; | |
| 1138 static int _ptypes_offset; | |
| 1139 | |
| 1140 static void compute_offsets(); | |
| 1141 | |
| 1142 public: | |
| 1143 // Accessors | |
| 1144 static oop rtype(oop mt); | |
| 1145 static objArrayOop ptypes(oop mt); | |
| 1146 | |
| 1147 static oop ptype(oop mt, int index); | |
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1148 static int ptype_count(oop mt); |
| 710 | 1149 |
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1150 static int ptype_slot_count(oop mt); // extra counts for long/double |
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1151 static int rtype_slot_count(oop mt); // extra counts for long/double |
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1152 |
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1153 static Symbol* as_signature(oop mt, bool intern_if_not_found, TRAPS); |
| 710 | 1154 static void print_signature(oop mt, outputStream* st); |
| 1155 | |
| 1156 static bool is_instance(oop obj) { | |
| 1157 return obj != NULL && obj->klass() == SystemDictionary::MethodType_klass(); | |
| 1158 } | |
| 1159 | |
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1160 static bool equals(oop mt1, oop mt2); |
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1161 |
| 710 | 1162 // Accessors for code generation: |
| 1163 static int rtype_offset_in_bytes() { return _rtype_offset; } | |
| 1164 static int ptypes_offset_in_bytes() { return _ptypes_offset; } | |
| 1165 }; | |
| 1166 | |
| 1167 | |
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1168 // Interface to java.lang.invoke.CallSite objects |
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1169 |
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1170 class java_lang_invoke_CallSite: AllStatic { |
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1171 friend class JavaClasses; |
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1172 |
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1173 private: |
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1174 static int _target_offset; |
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1175 |
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1176 static void compute_offsets(); |
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1177 |
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1178 public: |
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1179 // Accessors |
|
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1180 static oop target( oop site) { return site->obj_field( _target_offset); } |
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1181 static void set_target( oop site, oop target) { site->obj_field_put( _target_offset, target); } |
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1182 |
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1183 static volatile oop target_volatile(oop site) { return site->obj_field_volatile( _target_offset); } |
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1184 static void set_target_volatile(oop site, oop target) { site->obj_field_put_volatile(_target_offset, target); } |
|
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1185 |
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1186 // Testers |
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1187 static bool is_subclass(Klass* klass) { |
| 6983 | 1188 return klass->is_subclass_of(SystemDictionary::CallSite_klass()); |
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1189 } |
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1190 static bool is_instance(oop obj) { |
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1191 return obj != NULL && is_subclass(obj->klass()); |
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1192 } |
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1193 |
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1194 // Accessors for code generation: |
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1195 static int target_offset_in_bytes() { return _target_offset; } |
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1196 }; |
| 710 | 1197 |
| 1198 | |
| 0 | 1199 // Interface to java.security.AccessControlContext objects |
| 1200 | |
| 1201 class java_security_AccessControlContext: AllStatic { | |
| 1202 private: | |
| 1203 // Note that for this class the layout changed between JDK1.2 and JDK1.3, | |
| 1204 // so we compute the offsets at startup rather than hard-wiring them. | |
| 1205 static int _context_offset; | |
| 1206 static int _privilegedContext_offset; | |
| 1207 static int _isPrivileged_offset; | |
| 11010 | 1208 static int _isAuthorized_offset; |
| 0 | 1209 |
| 1210 static void compute_offsets(); | |
| 1211 public: | |
| 1212 static oop create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS); | |
| 1213 | |
| 11010 | 1214 static bool is_authorized(Handle context); |
| 1215 | |
| 0 | 1216 // Debugging/initialization |
| 1217 friend class JavaClasses; | |
| 1218 }; | |
| 1219 | |
| 1220 | |
| 1221 // Interface to java.lang.ClassLoader objects | |
| 1222 | |
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1223 #define CLASSLOADER_INJECTED_FIELDS(macro) \ |
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1224 macro(java_lang_ClassLoader, loader_data, intptr_signature, false) |
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1225 |
| 0 | 1226 class java_lang_ClassLoader : AllStatic { |
| 1227 private: | |
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1228 // The fake offsets are added by the class loader when java.lang.Class is loaded |
| 0 | 1229 enum { |
| 1230 hc_parent_offset = 0 | |
| 1231 }; | |
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1232 static int _loader_data_offset; |
| 3938 | 1233 static bool offsets_computed; |
| 0 | 1234 static int parent_offset; |
| 3938 | 1235 static int parallelCapable_offset; |
| 1236 | |
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1237 public: |
| 3938 | 1238 static void compute_offsets(); |
| 0 | 1239 |
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1240 static ClassLoaderData** loader_data_addr(oop loader); |
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1241 static ClassLoaderData* loader_data(oop loader); |
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1242 |
| 0 | 1243 static oop parent(oop loader); |
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1244 static bool isAncestor(oop loader, oop cl); |
| 0 | 1245 |
| 3938 | 1246 // Support for parallelCapable field |
| 1247 static bool parallelCapable(oop the_class_mirror); | |
| 1248 | |
| 0 | 1249 static bool is_trusted_loader(oop loader); |
| 1250 | |
| 1251 // Fix for 4474172 | |
| 1252 static oop non_reflection_class_loader(oop loader); | |
| 1253 | |
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1254 // Testers |
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1255 static bool is_subclass(Klass* klass) { |
| 6983 | 1256 return klass->is_subclass_of(SystemDictionary::ClassLoader_klass()); |
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1257 } |
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1258 static bool is_instance(oop obj) { |
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1259 return obj != NULL && is_subclass(obj->klass()); |
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1260 } |
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1261 |
| 0 | 1262 // Debugging |
| 1263 friend class JavaClasses; | |
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1264 friend class ClassFileParser; // access to number_of_fake_fields |
| 0 | 1265 }; |
| 1266 | |
| 1267 | |
| 1268 // Interface to java.lang.System objects | |
| 1269 | |
| 1270 class java_lang_System : AllStatic { | |
| 1271 private: | |
| 1272 enum { | |
| 1273 hc_static_in_offset = 0, | |
| 1274 hc_static_out_offset = 1, | |
| 11010 | 1275 hc_static_err_offset = 2, |
| 1276 hc_static_security_offset = 3 | |
| 0 | 1277 }; |
| 1278 | |
| 1279 static int static_in_offset; | |
| 1280 static int static_out_offset; | |
| 1281 static int static_err_offset; | |
| 11010 | 1282 static int static_security_offset; |
| 0 | 1283 |
| 1284 public: | |
| 1285 static int in_offset_in_bytes(); | |
| 1286 static int out_offset_in_bytes(); | |
| 1287 static int err_offset_in_bytes(); | |
| 1288 | |
| 11010 | 1289 static bool has_security_manager(); |
| 1290 | |
| 0 | 1291 // Debugging |
| 1292 friend class JavaClasses; | |
| 1293 }; | |
| 1294 | |
| 1295 | |
| 1296 // Interface to java.lang.StackTraceElement objects | |
| 1297 | |
| 1298 class java_lang_StackTraceElement: AllStatic { | |
| 1299 private: | |
| 1300 enum { | |
| 1301 hc_declaringClass_offset = 0, | |
| 1302 hc_methodName_offset = 1, | |
| 1303 hc_fileName_offset = 2, | |
| 1304 hc_lineNumber_offset = 3 | |
| 1305 }; | |
| 1306 | |
| 1307 static int declaringClass_offset; | |
| 1308 static int methodName_offset; | |
| 1309 static int fileName_offset; | |
| 1310 static int lineNumber_offset; | |
| 1311 | |
| 1312 public: | |
| 1313 // Setters | |
| 1314 static void set_declaringClass(oop element, oop value); | |
| 1315 static void set_methodName(oop element, oop value); | |
| 1316 static void set_fileName(oop element, oop value); | |
| 1317 static void set_lineNumber(oop element, int value); | |
| 1318 | |
| 1319 // Create an instance of StackTraceElement | |
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1320 static oop create(Handle mirror, int method, int version, int bci, TRAPS); |
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1321 static oop create(methodHandle method, int bci, TRAPS); |
| 0 | 1322 |
| 1323 // Debugging | |
| 1324 friend class JavaClasses; | |
| 1325 }; | |
| 1326 | |
| 1327 | |
| 1328 // Interface to java.lang.AssertionStatusDirectives objects | |
| 1329 | |
| 1330 class java_lang_AssertionStatusDirectives: AllStatic { | |
| 1331 private: | |
| 1332 enum { | |
| 1333 hc_classes_offset, | |
| 1334 hc_classEnabled_offset, | |
| 1335 hc_packages_offset, | |
| 1336 hc_packageEnabled_offset, | |
| 1337 hc_deflt_offset | |
| 1338 }; | |
| 1339 | |
| 1340 static int classes_offset; | |
| 1341 static int classEnabled_offset; | |
| 1342 static int packages_offset; | |
| 1343 static int packageEnabled_offset; | |
| 1344 static int deflt_offset; | |
| 1345 | |
| 1346 public: | |
| 1347 // Setters | |
| 1348 static void set_classes(oop obj, oop val); | |
| 1349 static void set_classEnabled(oop obj, oop val); | |
| 1350 static void set_packages(oop obj, oop val); | |
| 1351 static void set_packageEnabled(oop obj, oop val); | |
| 1352 static void set_deflt(oop obj, bool val); | |
| 1353 // Debugging | |
| 1354 friend class JavaClasses; | |
| 1355 }; | |
| 1356 | |
| 1357 | |
| 1358 class java_nio_Buffer: AllStatic { | |
| 1359 private: | |
| 1360 static int _limit_offset; | |
| 1361 | |
| 1362 public: | |
| 1363 static int limit_offset(); | |
| 1364 static void compute_offsets(); | |
| 1365 }; | |
| 1366 | |
| 1367 class java_util_concurrent_locks_AbstractOwnableSynchronizer : AllStatic { | |
| 1368 private: | |
| 1369 static int _owner_offset; | |
| 1370 public: | |
| 1371 static void initialize(TRAPS); | |
| 1372 static oop get_owner_threadObj(oop obj); | |
| 1373 }; | |
| 1374 | |
| 3938 | 1375 // Use to declare fields that need to be injected into Java classes |
| 1376 // for the JVM to use. The name_index and signature_index are | |
| 1377 // declared in vmSymbols. The may_be_java flag is used to declare | |
| 1378 // fields that might already exist in Java but should be injected if | |
| 1379 // they don't. Otherwise the field is unconditionally injected and | |
| 1380 // the JVM uses the injected one. This is to ensure that name | |
| 1381 // collisions don't occur. In general may_be_java should be false | |
| 1382 // unless there's a good reason. | |
| 1383 | |
| 1384 class InjectedField { | |
| 1385 public: | |
| 1386 const SystemDictionary::WKID klass_id; | |
| 1387 const vmSymbols::SID name_index; | |
| 1388 const vmSymbols::SID signature_index; | |
| 1389 const bool may_be_java; | |
| 1390 | |
| 1391 | |
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1392 Klass* klass() const { return SystemDictionary::well_known_klass(klass_id); } |
| 3938 | 1393 Symbol* name() const { return lookup_symbol(name_index); } |
| 1394 Symbol* signature() const { return lookup_symbol(signature_index); } | |
| 1395 | |
| 1396 int compute_offset(); | |
| 1397 | |
| 1398 // Find the Symbol for this index | |
| 1399 static Symbol* lookup_symbol(int symbol_index) { | |
| 1400 return vmSymbols::symbol_at((vmSymbols::SID)symbol_index); | |
| 1401 } | |
| 1402 }; | |
| 1403 | |
| 1404 #define DECLARE_INJECTED_FIELD_ENUM(klass, name, signature, may_be_java) \ | |
| 1405 klass##_##name##_enum, | |
| 1406 | |
| 1407 #define ALL_INJECTED_FIELDS(macro) \ | |
| 1408 CLASS_INJECTED_FIELDS(macro) \ | |
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1409 CLASSLOADER_INJECTED_FIELDS(macro) \ |
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1410 MEMBERNAME_INJECTED_FIELDS(macro) |
| 3938 | 1411 |
| 0 | 1412 // Interface to hard-coded offset checking |
| 1413 | |
| 1414 class JavaClasses : AllStatic { | |
| 1415 private: | |
| 3938 | 1416 |
| 1417 static InjectedField _injected_fields[]; | |
| 1418 | |
| 0 | 1419 static bool check_offset(const char *klass_name, int offset, const char *field_name, const char* field_sig) PRODUCT_RETURN0; |
| 1420 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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1421 static bool check_constant(const char *klass_name, int constant, const char *field_name, const char* field_sig) PRODUCT_RETURN0; |
| 3938 | 1422 |
| 0 | 1423 public: |
| 3938 | 1424 enum InjectedFieldID { |
| 1425 ALL_INJECTED_FIELDS(DECLARE_INJECTED_FIELD_ENUM) | |
| 1426 MAX_enum | |
| 1427 }; | |
| 1428 | |
| 1429 static int compute_injected_offset(InjectedFieldID id); | |
| 1430 | |
| 0 | 1431 static void compute_hard_coded_offsets(); |
| 1432 static void compute_offsets(); | |
| 1433 static void check_offsets() PRODUCT_RETURN; | |
| 3938 | 1434 |
| 1435 static InjectedField* get_injected(Symbol* class_name, int* field_count); | |
| 0 | 1436 }; |
| 1972 | 1437 |
| 3938 | 1438 #undef DECLARE_INJECTED_FIELD_ENUM |
| 1439 | |
| 1972 | 1440 #endif // SHARE_VM_CLASSFILE_JAVACLASSES_HPP |