Mercurial > hg > graal-compiler
annotate src/share/vm/classfile/javaClasses.hpp @ 10408:836a62f43af9
Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/
| author | Doug Simon <doug.simon@oracle.com> |
|---|---|
| date | Wed, 19 Jun 2013 10:45:56 +0200 |
| parents | b9a918201d47 6bd680e9ea35 |
| children | 6b0fd0964b87 |
| rev | line source |
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| 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); |
| 185 | |
| 186 // Conversion between '.' and '/' formats | |
| 187 static Handle externalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '/', '.', THREAD); } | |
| 188 static Handle internalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '.', '/', THREAD); } | |
| 189 | |
| 190 // Conversion | |
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191 static Symbol* as_symbol(Handle java_string, TRAPS); |
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192 static Symbol* as_symbol_or_null(oop java_string); |
| 0 | 193 |
| 194 // Testers | |
| 195 static bool is_instance(oop obj) { | |
| 1142 | 196 return obj != NULL && obj->klass() == SystemDictionary::String_klass(); |
| 0 | 197 } |
| 198 | |
| 199 // Debugging | |
| 200 static void print(Handle java_string, outputStream* st); | |
| 201 friend class JavaClasses; | |
| 202 }; | |
| 203 | |
| 204 | |
| 205 // Interface to java.lang.Class objects | |
| 206 | |
| 3938 | 207 #define CLASS_INJECTED_FIELDS(macro) \ |
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208 macro(java_lang_Class, klass, intptr_signature, false) \ |
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209 GRAAL_ONLY(macro(java_lang_Class, graal_mirror, object_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; | |
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228 #ifdef GRAAL |
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229 static int _graal_mirror_offset; |
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230 #endif |
| 0 | 231 |
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232 static int _protection_domain_offset; |
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233 static int _init_lock_offset; |
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234 static int _signers_offset; |
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235 |
| 0 | 236 static bool offsets_computed; |
| 237 static int classRedefinedCount_offset; | |
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238 static GrowableArray<Klass*>* _fixup_mirror_list; |
| 0 | 239 |
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240 static void set_init_lock(oop java_class, oop init_lock); |
| 0 | 241 public: |
| 3938 | 242 static void compute_offsets(); |
| 243 | |
| 0 | 244 // Instance creation |
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245 static oop create_mirror(KlassHandle k, Handle protection_domain, TRAPS); |
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246 static void fixup_mirror(KlassHandle k, TRAPS); |
| 0 | 247 static oop create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS); |
| 248 // Conversion | |
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249 static Klass* as_Klass(oop java_class); |
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250 static void set_klass(oop java_class, Klass* klass); |
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251 static BasicType as_BasicType(oop java_class, Klass** reference_klass = NULL); |
| 710 | 252 static BasicType as_BasicType(oop java_class, KlassHandle* reference_klass) { |
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253 Klass* refk_oop = NULL; |
| 710 | 254 BasicType result = as_BasicType(java_class, &refk_oop); |
| 255 (*reference_klass) = KlassHandle(refk_oop); | |
| 256 return result; | |
| 257 } | |
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258 static Symbol* as_signature(oop java_class, bool intern_if_not_found, TRAPS); |
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259 static void print_signature(oop java_class, outputStream *st); |
| 0 | 260 // Testing |
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261 static bool is_instance(oop obj) { |
| 1142 | 262 return obj != NULL && obj->klass() == SystemDictionary::Class_klass(); |
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263 } |
| 0 | 264 static bool is_primitive(oop java_class); |
| 265 static BasicType primitive_type(oop java_class); | |
| 266 static oop primitive_mirror(BasicType t); | |
| 267 // JVM_NewArray support | |
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268 static Klass* array_klass(oop java_class); |
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269 static void set_array_klass(oop java_class, Klass* klass); |
| 0 | 270 // compiler support for class operations |
| 3938 | 271 static int klass_offset_in_bytes() { return _klass_offset; } |
| 272 static int array_klass_offset_in_bytes() { return _array_klass_offset; } | |
| 0 | 273 // Support for classRedefinedCount field |
| 274 static int classRedefinedCount(oop the_class_mirror); | |
| 275 static void set_classRedefinedCount(oop the_class_mirror, int value); | |
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276 |
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277 // Support for embedded per-class oops |
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278 static oop protection_domain(oop java_class); |
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279 static void set_protection_domain(oop java_class, oop protection_domain); |
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280 static oop init_lock(oop java_class); |
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281 static objArrayOop signers(oop java_class); |
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282 static void set_signers(oop java_class, objArrayOop signers); |
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283 |
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284 static int oop_size(oop java_class); |
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285 static void set_oop_size(oop java_class, int size); |
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286 static int static_oop_field_count(oop java_class); |
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287 static void set_static_oop_field_count(oop java_class, int size); |
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288 |
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289 #ifdef GRAAL |
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290 static oop graal_mirror(oop java_class); |
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291 static int graal_mirror_offset_in_bytes() { return _graal_mirror_offset; } |
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292 #endif |
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293 |
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294 static GrowableArray<Klass*>* fixup_mirror_list() { |
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295 return _fixup_mirror_list; |
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296 } |
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297 static void set_fixup_mirror_list(GrowableArray<Klass*>* v) { |
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298 _fixup_mirror_list = v; |
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299 } |
| 0 | 300 // Debugging |
| 301 friend class JavaClasses; | |
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302 friend class InstanceKlass; // verification code accesses offsets |
| 0 | 303 friend class ClassFileParser; // access to number_of_fake_fields |
| 304 }; | |
| 305 | |
| 306 // Interface to java.lang.Thread objects | |
| 307 | |
| 308 class java_lang_Thread : AllStatic { | |
| 309 private: | |
| 310 // Note that for this class the layout changed between JDK1.2 and JDK1.3, | |
| 311 // so we compute the offsets at startup rather than hard-wiring them. | |
| 312 static int _name_offset; | |
| 313 static int _group_offset; | |
| 314 static int _contextClassLoader_offset; | |
| 315 static int _inheritedAccessControlContext_offset; | |
| 316 static int _priority_offset; | |
| 317 static int _eetop_offset; | |
| 318 static int _daemon_offset; | |
| 319 static int _stillborn_offset; | |
| 320 static int _stackSize_offset; | |
| 321 static int _tid_offset; | |
| 322 static int _thread_status_offset; | |
| 323 static int _park_blocker_offset; | |
| 324 static int _park_event_offset ; | |
| 325 | |
| 326 static void compute_offsets(); | |
| 327 | |
| 328 public: | |
| 329 // Instance creation | |
| 330 static oop create(); | |
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331 static int java_thread_offset_in_bytes() { return _eetop_offset; } |
| 0 | 332 // Returns the JavaThread associated with the thread obj |
| 333 static JavaThread* thread(oop java_thread); | |
| 334 // Set JavaThread for instance | |
| 335 static void set_thread(oop java_thread, JavaThread* thread); | |
| 336 // Name | |
| 337 static typeArrayOop name(oop java_thread); | |
| 338 static void set_name(oop java_thread, typeArrayOop name); | |
| 339 // Priority | |
| 340 static ThreadPriority priority(oop java_thread); | |
| 341 static void set_priority(oop java_thread, ThreadPriority priority); | |
| 342 // Thread group | |
| 343 static oop threadGroup(oop java_thread); | |
| 344 // Stillborn | |
| 345 static bool is_stillborn(oop java_thread); | |
| 346 static void set_stillborn(oop java_thread); | |
| 347 // Alive (NOTE: this is not really a field, but provides the correct | |
| 348 // definition without doing a Java call) | |
| 349 static bool is_alive(oop java_thread); | |
| 350 // Daemon | |
| 351 static bool is_daemon(oop java_thread); | |
| 352 static void set_daemon(oop java_thread); | |
| 353 // Context ClassLoader | |
| 354 static oop context_class_loader(oop java_thread); | |
| 355 // Control context | |
| 356 static oop inherited_access_control_context(oop java_thread); | |
| 357 // Stack size hint | |
| 358 static jlong stackSize(oop java_thread); | |
| 359 // Thread ID | |
| 360 static jlong thread_id(oop java_thread); | |
| 361 | |
| 362 // Blocker object responsible for thread parking | |
| 363 static oop park_blocker(oop java_thread); | |
| 364 | |
| 365 // Pointer to type-stable park handler, encoded as jlong. | |
| 366 // Should be set when apparently null | |
| 367 // For details, see unsafe.cpp Unsafe_Unpark | |
| 368 static jlong park_event(oop java_thread); | |
| 369 static bool set_park_event(oop java_thread, jlong ptr); | |
| 370 | |
| 371 // Java Thread Status for JVMTI and M&M use. | |
| 372 // This thread status info is saved in threadStatus field of | |
| 373 // java.lang.Thread java class. | |
| 374 enum ThreadStatus { | |
| 375 NEW = 0, | |
| 376 RUNNABLE = JVMTI_THREAD_STATE_ALIVE + // runnable / running | |
| 377 JVMTI_THREAD_STATE_RUNNABLE, | |
| 378 SLEEPING = JVMTI_THREAD_STATE_ALIVE + // Thread.sleep() | |
| 379 JVMTI_THREAD_STATE_WAITING + | |
| 380 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + | |
| 381 JVMTI_THREAD_STATE_SLEEPING, | |
| 382 IN_OBJECT_WAIT = JVMTI_THREAD_STATE_ALIVE + // Object.wait() | |
| 383 JVMTI_THREAD_STATE_WAITING + | |
| 384 JVMTI_THREAD_STATE_WAITING_INDEFINITELY + | |
| 385 JVMTI_THREAD_STATE_IN_OBJECT_WAIT, | |
| 386 IN_OBJECT_WAIT_TIMED = JVMTI_THREAD_STATE_ALIVE + // Object.wait(long) | |
| 387 JVMTI_THREAD_STATE_WAITING + | |
| 388 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + | |
| 389 JVMTI_THREAD_STATE_IN_OBJECT_WAIT, | |
| 390 PARKED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park() | |
| 391 JVMTI_THREAD_STATE_WAITING + | |
| 392 JVMTI_THREAD_STATE_WAITING_INDEFINITELY + | |
| 393 JVMTI_THREAD_STATE_PARKED, | |
| 394 PARKED_TIMED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park(long) | |
| 395 JVMTI_THREAD_STATE_WAITING + | |
| 396 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + | |
| 397 JVMTI_THREAD_STATE_PARKED, | |
| 398 BLOCKED_ON_MONITOR_ENTER = JVMTI_THREAD_STATE_ALIVE + // (re-)entering a synchronization block | |
| 399 JVMTI_THREAD_STATE_BLOCKED_ON_MONITOR_ENTER, | |
| 400 TERMINATED = JVMTI_THREAD_STATE_TERMINATED | |
| 401 }; | |
| 402 // Write thread status info to threadStatus field of java.lang.Thread. | |
| 403 static void set_thread_status(oop java_thread_oop, ThreadStatus status); | |
| 404 // Read thread status info from threadStatus field of java.lang.Thread. | |
| 405 static ThreadStatus get_thread_status(oop java_thread_oop); | |
| 406 | |
| 407 static const char* thread_status_name(oop java_thread_oop); | |
| 408 | |
| 409 // Debugging | |
| 410 friend class JavaClasses; | |
| 411 }; | |
| 412 | |
| 413 // Interface to java.lang.ThreadGroup objects | |
| 414 | |
| 415 class java_lang_ThreadGroup : AllStatic { | |
| 416 private: | |
| 417 static int _parent_offset; | |
| 418 static int _name_offset; | |
| 419 static int _threads_offset; | |
| 420 static int _groups_offset; | |
| 421 static int _maxPriority_offset; | |
| 422 static int _destroyed_offset; | |
| 423 static int _daemon_offset; | |
| 424 static int _vmAllowSuspension_offset; | |
| 425 static int _nthreads_offset; | |
| 426 static int _ngroups_offset; | |
| 427 | |
| 428 static void compute_offsets(); | |
| 429 | |
| 430 public: | |
| 431 // parent ThreadGroup | |
| 432 static oop parent(oop java_thread_group); | |
| 433 // name | |
| 434 static typeArrayOop name(oop java_thread_group); | |
| 435 // ("name as oop" accessor is not necessary) | |
| 436 // Number of threads in group | |
| 437 static int nthreads(oop java_thread_group); | |
| 438 // threads | |
| 439 static objArrayOop threads(oop java_thread_group); | |
| 440 // Number of threads in group | |
| 441 static int ngroups(oop java_thread_group); | |
| 442 // groups | |
| 443 static objArrayOop groups(oop java_thread_group); | |
| 444 // maxPriority in group | |
| 445 static ThreadPriority maxPriority(oop java_thread_group); | |
| 446 // Destroyed | |
| 447 static bool is_destroyed(oop java_thread_group); | |
| 448 // Daemon | |
| 449 static bool is_daemon(oop java_thread_group); | |
| 450 // vmAllowSuspension | |
| 451 static bool is_vmAllowSuspension(oop java_thread_group); | |
| 452 // Debugging | |
| 453 friend class JavaClasses; | |
| 454 }; | |
| 455 | |
| 456 | |
| 457 | |
| 458 // Interface to java.lang.Throwable objects | |
| 459 | |
| 460 class java_lang_Throwable: AllStatic { | |
| 461 friend class BacktraceBuilder; | |
| 462 | |
| 463 private: | |
| 464 // Offsets | |
| 465 enum { | |
| 466 hc_backtrace_offset = 0, | |
| 467 hc_detailMessage_offset = 1, | |
| 468 hc_cause_offset = 2, // New since 1.4 | |
| 469 hc_stackTrace_offset = 3 // New since 1.4 | |
| 470 }; | |
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471 enum { |
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472 hc_static_unassigned_stacktrace_offset = 0 // New since 1.7 |
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473 }; |
| 0 | 474 // Trace constants |
| 475 enum { | |
| 476 trace_methods_offset = 0, | |
| 477 trace_bcis_offset = 1, | |
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478 trace_mirrors_offset = 2, |
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479 trace_next_offset = 3, |
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480 trace_size = 4, |
| 0 | 481 trace_chunk_size = 32 |
| 482 }; | |
| 483 | |
| 484 static int backtrace_offset; | |
| 485 static int detailMessage_offset; | |
| 486 static int cause_offset; | |
| 487 static int stackTrace_offset; | |
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488 static int static_unassigned_stacktrace_offset; |
| 0 | 489 |
| 490 // Printing | |
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491 static char* print_stack_element_to_buffer(Handle mirror, int method, int version, int bci); |
| 0 | 492 // StackTrace (programmatic access, new since 1.4) |
| 493 static void clear_stacktrace(oop throwable); | |
| 494 // No stack trace available | |
| 495 static const char* no_stack_trace_message(); | |
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496 // Stacktrace (post JDK 1.7.0 to allow immutability protocol to be followed) |
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497 static void set_stacktrace(oop throwable, oop st_element_array); |
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498 static oop unassigned_stacktrace(); |
| 0 | 499 |
| 500 public: | |
| 501 // Backtrace | |
| 502 static oop backtrace(oop throwable); | |
| 503 static void set_backtrace(oop throwable, oop value); | |
| 504 // Needed by JVMTI to filter out this internal field. | |
| 505 static int get_backtrace_offset() { return backtrace_offset;} | |
| 506 static int get_detailMessage_offset() { return detailMessage_offset;} | |
| 507 // Message | |
| 508 static oop message(oop throwable); | |
| 509 static oop message(Handle throwable); | |
| 510 static void set_message(oop throwable, oop value); | |
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511 static void print_stack_element(outputStream *st, Handle mirror, int method, |
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512 int version, int bci); |
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513 static void print_stack_element(outputStream *st, methodHandle method, int bci); |
| 0 | 514 static void print_stack_usage(Handle stream); |
| 515 | |
| 516 // Allocate space for backtrace (created but stack trace not filled in) | |
| 517 static void allocate_backtrace(Handle throwable, TRAPS); | |
| 518 // Fill in current stack trace for throwable with preallocated backtrace (no GC) | |
| 519 static void fill_in_stack_trace_of_preallocated_backtrace(Handle throwable); | |
| 520 // Fill in current stack trace, can cause GC | |
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521 static void fill_in_stack_trace(Handle throwable, methodHandle method, TRAPS); |
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522 static void fill_in_stack_trace(Handle throwable, methodHandle method = methodHandle()); |
| 0 | 523 // Programmatic access to stack trace |
| 524 static oop get_stack_trace_element(oop throwable, int index, TRAPS); | |
| 525 static int get_stack_trace_depth(oop throwable, TRAPS); | |
| 526 // Printing | |
| 527 static void print(oop throwable, outputStream* st); | |
| 528 static void print(Handle throwable, outputStream* st); | |
| 529 static void print_stack_trace(oop throwable, outputStream* st); | |
| 530 // Debugging | |
| 531 friend class JavaClasses; | |
| 532 }; | |
| 533 | |
| 534 | |
| 535 // Interface to java.lang.reflect.AccessibleObject objects | |
| 536 | |
| 537 class java_lang_reflect_AccessibleObject: AllStatic { | |
| 538 private: | |
| 539 // Note that to reduce dependencies on the JDK we compute these | |
| 540 // offsets at run-time. | |
| 541 static int override_offset; | |
| 542 | |
| 543 static void compute_offsets(); | |
| 544 | |
| 545 public: | |
| 546 // Accessors | |
| 547 static jboolean override(oop reflect); | |
| 548 static void set_override(oop reflect, jboolean value); | |
| 549 | |
| 550 // Debugging | |
| 551 friend class JavaClasses; | |
| 552 }; | |
| 553 | |
| 554 | |
| 555 // Interface to java.lang.reflect.Method objects | |
| 556 | |
| 557 class java_lang_reflect_Method : public java_lang_reflect_AccessibleObject { | |
| 558 private: | |
| 559 // Note that to reduce dependencies on the JDK we compute these | |
| 560 // offsets at run-time. | |
| 561 static int clazz_offset; | |
| 562 static int name_offset; | |
| 563 static int returnType_offset; | |
| 564 static int parameterTypes_offset; | |
| 565 static int exceptionTypes_offset; | |
| 566 static int slot_offset; | |
| 567 static int modifiers_offset; | |
| 568 static int signature_offset; | |
| 569 static int annotations_offset; | |
| 570 static int parameter_annotations_offset; | |
| 571 static int annotation_default_offset; | |
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572 static int type_annotations_offset; |
| 0 | 573 |
| 574 static void compute_offsets(); | |
| 575 | |
| 576 public: | |
| 577 // Allocation | |
| 578 static Handle create(TRAPS); | |
| 579 | |
| 580 // Accessors | |
| 581 static oop clazz(oop reflect); | |
| 582 static void set_clazz(oop reflect, oop value); | |
| 583 | |
| 584 static oop name(oop method); | |
| 585 static void set_name(oop method, oop value); | |
| 586 | |
| 587 static oop return_type(oop method); | |
| 588 static void set_return_type(oop method, oop value); | |
| 589 | |
| 590 static oop parameter_types(oop method); | |
| 591 static void set_parameter_types(oop method, oop value); | |
| 592 | |
| 593 static oop exception_types(oop method); | |
| 594 static void set_exception_types(oop method, oop value); | |
| 595 | |
| 596 static int slot(oop reflect); | |
| 597 static void set_slot(oop reflect, int value); | |
| 598 | |
| 599 static int modifiers(oop method); | |
| 600 static void set_modifiers(oop method, int value); | |
| 601 | |
| 602 static bool has_signature_field(); | |
| 603 static oop signature(oop method); | |
| 604 static void set_signature(oop method, oop value); | |
| 605 | |
| 606 static bool has_annotations_field(); | |
| 607 static oop annotations(oop method); | |
| 608 static void set_annotations(oop method, oop value); | |
| 609 | |
| 610 static bool has_parameter_annotations_field(); | |
| 611 static oop parameter_annotations(oop method); | |
| 612 static void set_parameter_annotations(oop method, oop value); | |
| 613 | |
| 614 static bool has_annotation_default_field(); | |
| 615 static oop annotation_default(oop method); | |
| 616 static void set_annotation_default(oop method, oop value); | |
| 617 | |
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618 static bool has_type_annotations_field(); |
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619 static oop type_annotations(oop method); |
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620 static void set_type_annotations(oop method, oop value); |
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621 |
| 0 | 622 // Debugging |
| 623 friend class JavaClasses; | |
| 624 }; | |
| 625 | |
| 626 | |
| 627 // Interface to java.lang.reflect.Constructor objects | |
| 628 | |
| 629 class java_lang_reflect_Constructor : public java_lang_reflect_AccessibleObject { | |
| 630 private: | |
| 631 // Note that to reduce dependencies on the JDK we compute these | |
| 632 // offsets at run-time. | |
| 633 static int clazz_offset; | |
| 634 static int parameterTypes_offset; | |
| 635 static int exceptionTypes_offset; | |
| 636 static int slot_offset; | |
| 637 static int modifiers_offset; | |
| 638 static int signature_offset; | |
| 639 static int annotations_offset; | |
| 640 static int parameter_annotations_offset; | |
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641 static int type_annotations_offset; |
| 0 | 642 |
| 643 static void compute_offsets(); | |
| 644 | |
| 645 public: | |
| 646 // Allocation | |
| 647 static Handle create(TRAPS); | |
| 648 | |
| 649 // Accessors | |
| 650 static oop clazz(oop reflect); | |
| 651 static void set_clazz(oop reflect, oop value); | |
| 652 | |
| 653 static oop parameter_types(oop constructor); | |
| 654 static void set_parameter_types(oop constructor, oop value); | |
| 655 | |
| 656 static oop exception_types(oop constructor); | |
| 657 static void set_exception_types(oop constructor, oop value); | |
| 658 | |
| 659 static int slot(oop reflect); | |
| 660 static void set_slot(oop reflect, int value); | |
| 661 | |
| 662 static int modifiers(oop constructor); | |
| 663 static void set_modifiers(oop constructor, int value); | |
| 664 | |
| 665 static bool has_signature_field(); | |
| 666 static oop signature(oop constructor); | |
| 667 static void set_signature(oop constructor, oop value); | |
| 668 | |
| 669 static bool has_annotations_field(); | |
| 670 static oop annotations(oop constructor); | |
| 671 static void set_annotations(oop constructor, oop value); | |
| 672 | |
| 673 static bool has_parameter_annotations_field(); | |
| 674 static oop parameter_annotations(oop method); | |
| 675 static void set_parameter_annotations(oop method, oop value); | |
| 676 | |
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677 static bool has_type_annotations_field(); |
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678 static oop type_annotations(oop constructor); |
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679 static void set_type_annotations(oop constructor, oop value); |
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680 |
| 0 | 681 // Debugging |
| 682 friend class JavaClasses; | |
| 683 }; | |
| 684 | |
| 685 | |
| 686 // Interface to java.lang.reflect.Field objects | |
| 687 | |
| 688 class java_lang_reflect_Field : public java_lang_reflect_AccessibleObject { | |
| 689 private: | |
| 690 // Note that to reduce dependencies on the JDK we compute these | |
| 691 // offsets at run-time. | |
| 692 static int clazz_offset; | |
| 693 static int name_offset; | |
| 694 static int type_offset; | |
| 695 static int slot_offset; | |
| 696 static int modifiers_offset; | |
| 697 static int signature_offset; | |
| 698 static int annotations_offset; | |
|
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699 static int type_annotations_offset; |
| 0 | 700 |
| 701 static void compute_offsets(); | |
| 702 | |
| 703 public: | |
| 704 // Allocation | |
| 705 static Handle create(TRAPS); | |
| 706 | |
| 707 // Accessors | |
| 708 static oop clazz(oop reflect); | |
| 709 static void set_clazz(oop reflect, oop value); | |
| 710 | |
| 711 static oop name(oop field); | |
| 712 static void set_name(oop field, oop value); | |
| 713 | |
| 714 static oop type(oop field); | |
| 715 static void set_type(oop field, oop value); | |
| 716 | |
| 717 static int slot(oop reflect); | |
| 718 static void set_slot(oop reflect, int value); | |
| 719 | |
| 720 static int modifiers(oop field); | |
| 721 static void set_modifiers(oop field, int value); | |
| 722 | |
| 723 static bool has_signature_field(); | |
| 724 static oop signature(oop constructor); | |
| 725 static void set_signature(oop constructor, oop value); | |
| 726 | |
| 727 static bool has_annotations_field(); | |
| 728 static oop annotations(oop constructor); | |
| 729 static void set_annotations(oop constructor, oop value); | |
| 730 | |
| 731 static bool has_parameter_annotations_field(); | |
| 732 static oop parameter_annotations(oop method); | |
| 733 static void set_parameter_annotations(oop method, oop value); | |
| 734 | |
| 735 static bool has_annotation_default_field(); | |
| 736 static oop annotation_default(oop method); | |
| 737 static void set_annotation_default(oop method, oop value); | |
| 738 | |
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739 static bool has_type_annotations_field(); |
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740 static oop type_annotations(oop field); |
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741 static void set_type_annotations(oop field, oop value); |
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742 |
| 0 | 743 // Debugging |
| 744 friend class JavaClasses; | |
| 745 }; | |
| 746 | |
|
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747 class java_lang_reflect_Parameter { |
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748 private: |
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749 // Note that to reduce dependencies on the JDK we compute these |
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750 // offsets at run-time. |
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751 static int name_offset; |
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752 static int modifiers_offset; |
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753 static int index_offset; |
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754 static int executable_offset; |
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755 |
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756 static void compute_offsets(); |
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757 |
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758 public: |
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759 // Allocation |
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760 static Handle create(TRAPS); |
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761 |
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762 // Accessors |
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763 static oop name(oop field); |
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764 static void set_name(oop field, oop value); |
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765 |
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766 static int index(oop reflect); |
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767 static void set_index(oop reflect, int value); |
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768 |
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769 static int modifiers(oop reflect); |
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770 static void set_modifiers(oop reflect, int value); |
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771 |
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772 static oop executable(oop constructor); |
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773 static void set_executable(oop constructor, oop value); |
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774 |
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775 friend class JavaClasses; |
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776 }; |
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777 |
| 0 | 778 // Interface to sun.reflect.ConstantPool objects |
| 779 class sun_reflect_ConstantPool { | |
| 780 private: | |
| 781 // Note that to reduce dependencies on the JDK we compute these | |
| 782 // offsets at run-time. | |
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783 static int _oop_offset; |
| 0 | 784 |
| 785 static void compute_offsets(); | |
| 786 | |
| 787 public: | |
| 788 // Allocation | |
| 789 static Handle create(TRAPS); | |
| 790 | |
| 791 // Accessors | |
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792 static void set_cp(oop reflect, ConstantPool* value); |
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793 static int oop_offset() { |
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794 return _oop_offset; |
| 0 | 795 } |
| 796 | |
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797 static ConstantPool* get_cp(oop reflect); |
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798 |
| 0 | 799 // Debugging |
| 800 friend class JavaClasses; | |
| 801 }; | |
| 802 | |
| 803 // Interface to sun.reflect.UnsafeStaticFieldAccessorImpl objects | |
| 804 class sun_reflect_UnsafeStaticFieldAccessorImpl { | |
| 805 private: | |
| 806 static int _base_offset; | |
| 807 static void compute_offsets(); | |
| 808 | |
| 809 public: | |
| 810 static int base_offset() { | |
| 811 return _base_offset; | |
| 812 } | |
| 813 | |
| 814 // Debugging | |
| 815 friend class JavaClasses; | |
| 816 }; | |
| 817 | |
| 818 // Interface to java.lang primitive type boxing objects: | |
| 819 // - java.lang.Boolean | |
| 820 // - java.lang.Character | |
| 821 // - java.lang.Float | |
| 822 // - java.lang.Double | |
| 823 // - java.lang.Byte | |
| 824 // - java.lang.Short | |
| 825 // - java.lang.Integer | |
| 826 // - java.lang.Long | |
| 827 | |
| 828 // This could be separated out into 8 individual classes. | |
| 829 | |
| 830 class java_lang_boxing_object: AllStatic { | |
| 831 private: | |
| 832 enum { | |
| 833 hc_value_offset = 0 | |
| 834 }; | |
| 835 static int value_offset; | |
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836 static int long_value_offset; |
| 0 | 837 |
|
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838 static oop initialize_and_allocate(BasicType type, TRAPS); |
| 0 | 839 public: |
| 840 // Allocation. Returns a boxed value, or NULL for invalid type. | |
| 841 static oop create(BasicType type, jvalue* value, TRAPS); | |
| 842 // Accessors. Returns the basic type being boxed, or T_ILLEGAL for invalid oop. | |
| 843 static BasicType get_value(oop box, jvalue* value); | |
| 844 static BasicType set_value(oop box, jvalue* value); | |
|
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845 static BasicType basic_type(oop box); |
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846 static bool is_instance(oop box) { return basic_type(box) != T_ILLEGAL; } |
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847 static bool is_instance(oop box, BasicType type) { return basic_type(box) == type; } |
|
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848 static void print(oop box, outputStream* st) { jvalue value; print(get_value(box, &value), &value, st); } |
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849 static void print(BasicType type, jvalue* value, outputStream* st); |
| 0 | 850 |
|
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851 static int value_offset_in_bytes(BasicType type) { |
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852 return ( type == T_LONG || type == T_DOUBLE ) ? long_value_offset : |
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853 value_offset; |
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854 } |
| 0 | 855 |
| 856 // Debugging | |
| 857 friend class JavaClasses; | |
| 858 }; | |
| 859 | |
| 860 | |
| 861 | |
| 862 // Interface to java.lang.ref.Reference objects | |
| 863 | |
| 864 class java_lang_ref_Reference: AllStatic { | |
| 865 public: | |
| 866 enum { | |
| 867 hc_referent_offset = 0, | |
| 868 hc_queue_offset = 1, | |
| 869 hc_next_offset = 2, | |
| 870 hc_discovered_offset = 3 // Is not last, see SoftRefs. | |
| 871 }; | |
| 872 enum { | |
| 873 hc_static_lock_offset = 0, | |
| 874 hc_static_pending_offset = 1 | |
| 875 }; | |
| 876 | |
| 877 static int referent_offset; | |
| 878 static int queue_offset; | |
| 879 static int next_offset; | |
| 880 static int discovered_offset; | |
| 881 static int static_lock_offset; | |
| 882 static int static_pending_offset; | |
| 883 static int number_of_fake_oop_fields; | |
| 884 | |
| 885 // Accessors | |
|
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886 static oop referent(oop ref) { |
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887 return ref->obj_field(referent_offset); |
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888 } |
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889 static void set_referent(oop ref, oop value) { |
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890 ref->obj_field_put(referent_offset, value); |
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891 } |
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892 static void set_referent_raw(oop ref, oop value) { |
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893 ref->obj_field_put_raw(referent_offset, value); |
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894 } |
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895 static HeapWord* referent_addr(oop ref) { |
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896 return ref->obj_field_addr<HeapWord>(referent_offset); |
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897 } |
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898 static oop next(oop ref) { |
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899 return ref->obj_field(next_offset); |
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900 } |
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901 static void set_next(oop ref, oop value) { |
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902 ref->obj_field_put(next_offset, value); |
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903 } |
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904 static void set_next_raw(oop ref, oop value) { |
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905 ref->obj_field_put_raw(next_offset, value); |
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906 } |
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907 static HeapWord* next_addr(oop ref) { |
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908 return ref->obj_field_addr<HeapWord>(next_offset); |
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909 } |
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910 static oop discovered(oop ref) { |
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911 return ref->obj_field(discovered_offset); |
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912 } |
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913 static void set_discovered(oop ref, oop value) { |
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914 ref->obj_field_put(discovered_offset, value); |
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915 } |
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916 static void set_discovered_raw(oop ref, oop value) { |
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917 ref->obj_field_put_raw(discovered_offset, value); |
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918 } |
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919 static HeapWord* discovered_addr(oop ref) { |
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920 return ref->obj_field_addr<HeapWord>(discovered_offset); |
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921 } |
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922 // Accessors for statics |
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923 static oop pending_list_lock(); |
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924 static oop pending_list(); |
| 0 | 925 |
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926 static HeapWord* pending_list_lock_addr(); |
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927 static HeapWord* pending_list_addr(); |
| 0 | 928 }; |
| 929 | |
| 930 | |
| 931 // Interface to java.lang.ref.SoftReference objects | |
| 932 | |
| 933 class java_lang_ref_SoftReference: public java_lang_ref_Reference { | |
| 934 public: | |
| 935 enum { | |
| 936 // The timestamp is a long field and may need to be adjusted for alignment. | |
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937 hc_timestamp_offset = hc_discovered_offset + 1 |
| 0 | 938 }; |
| 939 enum { | |
| 940 hc_static_clock_offset = 0 | |
| 941 }; | |
| 942 | |
| 943 static int timestamp_offset; | |
| 944 static int static_clock_offset; | |
| 945 | |
| 946 // Accessors | |
| 947 static jlong timestamp(oop ref); | |
| 948 | |
| 949 // Accessors for statics | |
| 950 static jlong clock(); | |
| 951 static void set_clock(jlong value); | |
| 952 }; | |
| 953 | |
| 954 | |
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955 // Interface to java.lang.invoke.MethodHandle objects |
| 710 | 956 |
| 957 class MethodHandleEntry; | |
| 958 | |
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959 class java_lang_invoke_MethodHandle: AllStatic { |
| 710 | 960 friend class JavaClasses; |
| 961 | |
| 962 private: | |
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963 static int _type_offset; // the MethodType of this MH |
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964 static int _form_offset; // the LambdaForm of this MH |
| 710 | 965 |
| 966 static void compute_offsets(); | |
| 967 | |
| 968 public: | |
| 969 // Accessors | |
| 970 static oop type(oop mh); | |
| 971 static void set_type(oop mh, oop mtype); | |
| 972 | |
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973 static oop form(oop mh); |
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974 static void set_form(oop mh, oop lform); |
| 710 | 975 |
| 976 // Testers | |
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977 static bool is_subclass(Klass* klass) { |
| 6983 | 978 return klass->is_subclass_of(SystemDictionary::MethodHandle_klass()); |
| 710 | 979 } |
| 980 static bool is_instance(oop obj) { | |
| 981 return obj != NULL && is_subclass(obj->klass()); | |
| 982 } | |
| 983 | |
| 984 // Accessors for code generation: | |
| 985 static int type_offset_in_bytes() { return _type_offset; } | |
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986 static int form_offset_in_bytes() { return _form_offset; } |
| 710 | 987 }; |
| 988 | |
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989 // Interface to java.lang.invoke.LambdaForm objects |
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990 // (These are a private interface for managing adapter code generation.) |
| 3938 | 991 |
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992 class java_lang_invoke_LambdaForm: AllStatic { |
| 710 | 993 friend class JavaClasses; |
| 994 | |
| 995 private: | |
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996 static int _vmentry_offset; // type is MemberName |
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997 |
| 710 | 998 static void compute_offsets(); |
| 999 | |
| 1000 public: | |
| 1001 // Accessors | |
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1002 static oop vmentry(oop lform); |
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1003 static void set_vmentry(oop lform, oop invoker); |
| 710 | 1004 |
| 1005 // Testers | |
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1006 static bool is_subclass(Klass* klass) { |
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1007 return SystemDictionary::LambdaForm_klass() != NULL && |
| 6983 | 1008 klass->is_subclass_of(SystemDictionary::LambdaForm_klass()); |
| 710 | 1009 } |
| 1010 static bool is_instance(oop obj) { | |
| 1011 return obj != NULL && is_subclass(obj->klass()); | |
| 1012 } | |
| 1013 | |
| 1014 // Accessors for code generation: | |
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1015 static int vmentry_offset_in_bytes() { return _vmentry_offset; } |
| 710 | 1016 }; |
| 1017 | |
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1018 |
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1019 // Interface to java.lang.invoke.MemberName objects |
| 710 | 1020 // (These are a private interface for Java code to query the class hierarchy.) |
| 1021 | |
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1022 #define MEMBERNAME_INJECTED_FIELDS(macro) \ |
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1023 macro(java_lang_invoke_MemberName, vmloader, object_signature, false) \ |
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1024 macro(java_lang_invoke_MemberName, vmindex, intptr_signature, false) \ |
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1025 macro(java_lang_invoke_MemberName, vmtarget, intptr_signature, false) |
| 3938 | 1026 |
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1027 class java_lang_invoke_MemberName: AllStatic { |
| 710 | 1028 friend class JavaClasses; |
| 1029 | |
| 1030 private: | |
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1031 // From java.lang.invoke.MemberName: |
| 710 | 1032 // private Class<?> clazz; // class in which the method is defined |
| 1033 // private String name; // may be null if not yet materialized | |
| 1034 // private Object type; // may be null if not yet materialized | |
| 1035 // private int flags; // modifier bits; see reflect.Modifier | |
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1036 // private intptr vmtarget; // VM-specific target value |
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1037 // private intptr_t vmindex; // member index within class or interface |
| 710 | 1038 static int _clazz_offset; |
| 1039 static int _name_offset; | |
| 1040 static int _type_offset; | |
| 1041 static int _flags_offset; | |
| 1042 static int _vmtarget_offset; | |
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1043 static int _vmloader_offset; |
| 710 | 1044 static int _vmindex_offset; |
| 1045 | |
| 1046 static void compute_offsets(); | |
| 1047 | |
| 1048 public: | |
| 1049 // Accessors | |
| 1050 static oop clazz(oop mname); | |
| 1051 static void set_clazz(oop mname, oop clazz); | |
| 1052 | |
| 1053 static oop type(oop mname); | |
| 1054 static void set_type(oop mname, oop type); | |
| 1055 | |
| 1056 static oop name(oop mname); | |
| 1057 static void set_name(oop mname, oop name); | |
| 1058 | |
| 1059 static int flags(oop mname); | |
| 1060 static void set_flags(oop mname, int flags); | |
| 1061 | |
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1062 static Metadata* vmtarget(oop mname); |
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1063 static void set_vmtarget(oop mname, Metadata* target); |
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1064 #if INCLUDE_JVMTI |
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1065 static void adjust_vmtarget(oop mname, Metadata* target); |
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1066 #endif // INCLUDE_JVMTI |
| 710 | 1067 |
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1068 static intptr_t vmindex(oop mname); |
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1069 static void set_vmindex(oop mname, intptr_t index); |
| 710 | 1070 |
| 1071 // Testers | |
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1072 static bool is_subclass(Klass* klass) { |
| 6983 | 1073 return klass->is_subclass_of(SystemDictionary::MemberName_klass()); |
| 710 | 1074 } |
| 1075 static bool is_instance(oop obj) { | |
| 1076 return obj != NULL && is_subclass(obj->klass()); | |
| 1077 } | |
| 1078 | |
| 1079 // Relevant integer codes (keep these in synch. with MethodHandleNatives.Constants): | |
| 1080 enum { | |
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1081 MN_IS_METHOD = 0x00010000, // method (not constructor) |
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1082 MN_IS_CONSTRUCTOR = 0x00020000, // constructor |
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1083 MN_IS_FIELD = 0x00040000, // field |
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1084 MN_IS_TYPE = 0x00080000, // nested type |
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1085 MN_CALLER_SENSITIVE = 0x00100000, // @CallerSensitive annotation detected |
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1086 MN_REFERENCE_KIND_SHIFT = 24, // refKind |
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1087 MN_REFERENCE_KIND_MASK = 0x0F000000 >> MN_REFERENCE_KIND_SHIFT, |
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1088 // The SEARCH_* bits are not for MN.flags but for the matchFlags argument of MHN.getMembers: |
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1089 MN_SEARCH_SUPERCLASSES = 0x00100000, // walk super classes |
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1090 MN_SEARCH_INTERFACES = 0x00200000 // walk implemented interfaces |
| 710 | 1091 }; |
| 1092 | |
| 1093 // Accessors for code generation: | |
| 1094 static int clazz_offset_in_bytes() { return _clazz_offset; } | |
| 1095 static int type_offset_in_bytes() { return _type_offset; } | |
| 1096 static int name_offset_in_bytes() { return _name_offset; } | |
| 1097 static int flags_offset_in_bytes() { return _flags_offset; } | |
| 1098 static int vmtarget_offset_in_bytes() { return _vmtarget_offset; } | |
| 1099 static int vmindex_offset_in_bytes() { return _vmindex_offset; } | |
| 1100 }; | |
| 1101 | |
| 1102 | |
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1103 // Interface to java.lang.invoke.MethodType objects |
| 710 | 1104 |
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1105 class java_lang_invoke_MethodType: AllStatic { |
| 710 | 1106 friend class JavaClasses; |
| 1107 | |
| 1108 private: | |
| 1109 static int _rtype_offset; | |
| 1110 static int _ptypes_offset; | |
| 1111 | |
| 1112 static void compute_offsets(); | |
| 1113 | |
| 1114 public: | |
| 1115 // Accessors | |
| 1116 static oop rtype(oop mt); | |
| 1117 static objArrayOop ptypes(oop mt); | |
| 1118 | |
| 1119 static oop ptype(oop mt, int index); | |
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1120 static int ptype_count(oop mt); |
| 710 | 1121 |
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1122 static int ptype_slot_count(oop mt); // extra counts for long/double |
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1123 static int rtype_slot_count(oop mt); // extra counts for long/double |
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1124 |
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1125 static Symbol* as_signature(oop mt, bool intern_if_not_found, TRAPS); |
| 710 | 1126 static void print_signature(oop mt, outputStream* st); |
| 1127 | |
| 1128 static bool is_instance(oop obj) { | |
| 1129 return obj != NULL && obj->klass() == SystemDictionary::MethodType_klass(); | |
| 1130 } | |
| 1131 | |
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1132 static bool equals(oop mt1, oop mt2); |
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1133 |
| 710 | 1134 // Accessors for code generation: |
| 1135 static int rtype_offset_in_bytes() { return _rtype_offset; } | |
| 1136 static int ptypes_offset_in_bytes() { return _ptypes_offset; } | |
| 1137 }; | |
| 1138 | |
| 1139 | |
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1140 // Interface to java.lang.invoke.CallSite objects |
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1141 |
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1142 class java_lang_invoke_CallSite: AllStatic { |
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1143 friend class JavaClasses; |
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1144 |
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1145 private: |
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1146 static int _target_offset; |
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1147 |
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1148 static void compute_offsets(); |
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1149 |
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1150 public: |
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1151 // Accessors |
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1152 static oop target( oop site) { return site->obj_field( _target_offset); } |
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1153 static void set_target( oop site, oop target) { site->obj_field_put( _target_offset, target); } |
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1154 |
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1155 static volatile oop target_volatile(oop site) { return site->obj_field_volatile( _target_offset); } |
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1156 static void set_target_volatile(oop site, oop target) { site->obj_field_put_volatile(_target_offset, target); } |
|
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1157 |
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1158 // Testers |
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1159 static bool is_subclass(Klass* klass) { |
| 6983 | 1160 return klass->is_subclass_of(SystemDictionary::CallSite_klass()); |
|
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1161 } |
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1162 static bool is_instance(oop obj) { |
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1163 return obj != NULL && is_subclass(obj->klass()); |
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1164 } |
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1165 |
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1166 // Accessors for code generation: |
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1167 static int target_offset_in_bytes() { return _target_offset; } |
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1168 }; |
| 710 | 1169 |
| 1170 | |
| 0 | 1171 // Interface to java.security.AccessControlContext objects |
| 1172 | |
| 1173 class java_security_AccessControlContext: AllStatic { | |
| 1174 private: | |
| 1175 // Note that for this class the layout changed between JDK1.2 and JDK1.3, | |
| 1176 // so we compute the offsets at startup rather than hard-wiring them. | |
| 1177 static int _context_offset; | |
| 1178 static int _privilegedContext_offset; | |
| 1179 static int _isPrivileged_offset; | |
| 1180 | |
| 1181 static void compute_offsets(); | |
| 1182 public: | |
| 1183 static oop create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS); | |
| 1184 | |
| 1185 // Debugging/initialization | |
| 1186 friend class JavaClasses; | |
| 1187 }; | |
| 1188 | |
| 1189 | |
| 1190 // Interface to java.lang.ClassLoader objects | |
| 1191 | |
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1192 #define CLASSLOADER_INJECTED_FIELDS(macro) \ |
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1193 macro(java_lang_ClassLoader, loader_data, intptr_signature, false) |
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1194 |
| 0 | 1195 class java_lang_ClassLoader : AllStatic { |
| 1196 private: | |
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1197 // The fake offsets are added by the class loader when java.lang.Class is loaded |
| 0 | 1198 enum { |
| 1199 hc_parent_offset = 0 | |
| 1200 }; | |
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1201 static int _loader_data_offset; |
| 3938 | 1202 static bool offsets_computed; |
| 0 | 1203 static int parent_offset; |
| 3938 | 1204 static int parallelCapable_offset; |
| 1205 | |
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1206 public: |
| 3938 | 1207 static void compute_offsets(); |
| 0 | 1208 |
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1209 static ClassLoaderData** loader_data_addr(oop loader); |
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1210 static ClassLoaderData* loader_data(oop loader); |
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1211 |
| 0 | 1212 static oop parent(oop loader); |
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1213 static bool isAncestor(oop loader, oop cl); |
| 0 | 1214 |
| 3938 | 1215 // Support for parallelCapable field |
| 1216 static bool parallelCapable(oop the_class_mirror); | |
| 1217 | |
| 0 | 1218 static bool is_trusted_loader(oop loader); |
| 1219 | |
| 1220 // Fix for 4474172 | |
| 1221 static oop non_reflection_class_loader(oop loader); | |
| 1222 | |
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1223 // Testers |
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1224 static bool is_subclass(Klass* klass) { |
| 6983 | 1225 return klass->is_subclass_of(SystemDictionary::ClassLoader_klass()); |
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1226 } |
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1227 static bool is_instance(oop obj) { |
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1228 return obj != NULL && is_subclass(obj->klass()); |
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1229 } |
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1230 |
| 0 | 1231 // Debugging |
| 1232 friend class JavaClasses; | |
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1233 friend class ClassFileParser; // access to number_of_fake_fields |
| 0 | 1234 }; |
| 1235 | |
| 1236 | |
| 1237 // Interface to java.lang.System objects | |
| 1238 | |
| 1239 class java_lang_System : AllStatic { | |
| 1240 private: | |
| 1241 enum { | |
| 1242 hc_static_in_offset = 0, | |
| 1243 hc_static_out_offset = 1, | |
| 1244 hc_static_err_offset = 2 | |
| 1245 }; | |
| 1246 | |
| 1247 static int static_in_offset; | |
| 1248 static int static_out_offset; | |
| 1249 static int static_err_offset; | |
| 1250 | |
| 1251 public: | |
| 1252 static int in_offset_in_bytes(); | |
| 1253 static int out_offset_in_bytes(); | |
| 1254 static int err_offset_in_bytes(); | |
| 1255 | |
| 1256 // Debugging | |
| 1257 friend class JavaClasses; | |
| 1258 }; | |
| 1259 | |
| 1260 | |
| 1261 // Interface to java.lang.StackTraceElement objects | |
| 1262 | |
| 1263 class java_lang_StackTraceElement: AllStatic { | |
| 1264 private: | |
| 1265 enum { | |
| 1266 hc_declaringClass_offset = 0, | |
| 1267 hc_methodName_offset = 1, | |
| 1268 hc_fileName_offset = 2, | |
| 1269 hc_lineNumber_offset = 3 | |
| 1270 }; | |
| 1271 | |
| 1272 static int declaringClass_offset; | |
| 1273 static int methodName_offset; | |
| 1274 static int fileName_offset; | |
| 1275 static int lineNumber_offset; | |
| 1276 | |
| 1277 public: | |
| 1278 // Setters | |
| 1279 static void set_declaringClass(oop element, oop value); | |
| 1280 static void set_methodName(oop element, oop value); | |
| 1281 static void set_fileName(oop element, oop value); | |
| 1282 static void set_lineNumber(oop element, int value); | |
| 1283 | |
| 1284 // Create an instance of StackTraceElement | |
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1285 static oop create(Handle mirror, int method, int version, int bci, TRAPS); |
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1286 static oop create(methodHandle method, int bci, TRAPS); |
| 0 | 1287 |
| 1288 // Debugging | |
| 1289 friend class JavaClasses; | |
| 1290 }; | |
| 1291 | |
| 1292 | |
| 1293 // Interface to java.lang.AssertionStatusDirectives objects | |
| 1294 | |
| 1295 class java_lang_AssertionStatusDirectives: AllStatic { | |
| 1296 private: | |
| 1297 enum { | |
| 1298 hc_classes_offset, | |
| 1299 hc_classEnabled_offset, | |
| 1300 hc_packages_offset, | |
| 1301 hc_packageEnabled_offset, | |
| 1302 hc_deflt_offset | |
| 1303 }; | |
| 1304 | |
| 1305 static int classes_offset; | |
| 1306 static int classEnabled_offset; | |
| 1307 static int packages_offset; | |
| 1308 static int packageEnabled_offset; | |
| 1309 static int deflt_offset; | |
| 1310 | |
| 1311 public: | |
| 1312 // Setters | |
| 1313 static void set_classes(oop obj, oop val); | |
| 1314 static void set_classEnabled(oop obj, oop val); | |
| 1315 static void set_packages(oop obj, oop val); | |
| 1316 static void set_packageEnabled(oop obj, oop val); | |
| 1317 static void set_deflt(oop obj, bool val); | |
| 1318 // Debugging | |
| 1319 friend class JavaClasses; | |
| 1320 }; | |
| 1321 | |
| 1322 | |
| 1323 class java_nio_Buffer: AllStatic { | |
| 1324 private: | |
| 1325 static int _limit_offset; | |
| 1326 | |
| 1327 public: | |
| 1328 static int limit_offset(); | |
| 1329 static void compute_offsets(); | |
| 1330 }; | |
| 1331 | |
| 1332 class java_util_concurrent_locks_AbstractOwnableSynchronizer : AllStatic { | |
| 1333 private: | |
| 1334 static int _owner_offset; | |
| 1335 public: | |
| 1336 static void initialize(TRAPS); | |
| 1337 static oop get_owner_threadObj(oop obj); | |
| 1338 }; | |
| 1339 | |
| 3938 | 1340 // Use to declare fields that need to be injected into Java classes |
| 1341 // for the JVM to use. The name_index and signature_index are | |
| 1342 // declared in vmSymbols. The may_be_java flag is used to declare | |
| 1343 // fields that might already exist in Java but should be injected if | |
| 1344 // they don't. Otherwise the field is unconditionally injected and | |
| 1345 // the JVM uses the injected one. This is to ensure that name | |
| 1346 // collisions don't occur. In general may_be_java should be false | |
| 1347 // unless there's a good reason. | |
| 1348 | |
| 1349 class InjectedField { | |
| 1350 public: | |
| 1351 const SystemDictionary::WKID klass_id; | |
| 1352 const vmSymbols::SID name_index; | |
| 1353 const vmSymbols::SID signature_index; | |
| 1354 const bool may_be_java; | |
| 1355 | |
| 1356 | |
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1357 Klass* klass() const { return SystemDictionary::well_known_klass(klass_id); } |
| 3938 | 1358 Symbol* name() const { return lookup_symbol(name_index); } |
| 1359 Symbol* signature() const { return lookup_symbol(signature_index); } | |
| 1360 | |
| 1361 int compute_offset(); | |
| 1362 | |
| 1363 // Find the Symbol for this index | |
| 1364 static Symbol* lookup_symbol(int symbol_index) { | |
| 1365 return vmSymbols::symbol_at((vmSymbols::SID)symbol_index); | |
| 1366 } | |
| 1367 }; | |
| 1368 | |
| 1369 #define DECLARE_INJECTED_FIELD_ENUM(klass, name, signature, may_be_java) \ | |
| 1370 klass##_##name##_enum, | |
| 1371 | |
| 1372 #define ALL_INJECTED_FIELDS(macro) \ | |
| 1373 CLASS_INJECTED_FIELDS(macro) \ | |
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1374 CLASSLOADER_INJECTED_FIELDS(macro) \ |
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1375 MEMBERNAME_INJECTED_FIELDS(macro) |
| 3938 | 1376 |
| 0 | 1377 // Interface to hard-coded offset checking |
| 1378 | |
| 1379 class JavaClasses : AllStatic { | |
| 1380 private: | |
| 3938 | 1381 |
| 1382 static InjectedField _injected_fields[]; | |
| 1383 | |
| 0 | 1384 static bool check_offset(const char *klass_name, int offset, const char *field_name, const char* field_sig) PRODUCT_RETURN0; |
| 1385 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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1386 static bool check_constant(const char *klass_name, int constant, const char *field_name, const char* field_sig) PRODUCT_RETURN0; |
| 3938 | 1387 |
| 0 | 1388 public: |
| 3938 | 1389 enum InjectedFieldID { |
| 1390 ALL_INJECTED_FIELDS(DECLARE_INJECTED_FIELD_ENUM) | |
| 1391 MAX_enum | |
| 1392 }; | |
| 1393 | |
| 1394 static int compute_injected_offset(InjectedFieldID id); | |
| 1395 | |
| 0 | 1396 static void compute_hard_coded_offsets(); |
| 1397 static void compute_offsets(); | |
| 1398 static void check_offsets() PRODUCT_RETURN; | |
| 3938 | 1399 |
| 1400 static InjectedField* get_injected(Symbol* class_name, int* field_count); | |
| 0 | 1401 }; |
| 1972 | 1402 |
| 3938 | 1403 #undef DECLARE_INJECTED_FIELD_ENUM |
| 1404 | |
| 1972 | 1405 #endif // SHARE_VM_CLASSFILE_JAVACLASSES_HPP |