Mercurial > hg > graal-jvmci-8
annotate src/share/vm/classfile/javaClasses.hpp @ 24140:d4858e92c9b1
[GR-4077] support Graal.SDK on the boot class path and Truffle on a class path invisible to apps but visible to JVMCI
| author | Doug Simon <doug.simon@oracle.com> |
|---|---|
| date | Tue, 13 Jun 2017 14:22:54 +0200 |
| parents | f13e777eb255 |
| children | 0137da2b56d9 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 23802 | 2 * Copyright (c) 1997, 2016, 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 { | |
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156 typeArrayOop value_array = ((typeArrayOop)java_string->obj_field(value_offset)); |
| 22473 | 157 if (value_array == NULL) { |
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158 return 0; |
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159 } else { |
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160 return value_array->length(); |
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161 } |
| 6057 | 162 } |
| 0 | 163 } |
| 164 static int utf8_length(oop java_string); | |
| 165 | |
| 166 // String converters | |
| 167 static char* as_utf8_string(oop java_string); | |
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168 static char* as_utf8_string(oop java_string, char* buf, int buflen); |
| 0 | 169 static char* as_utf8_string(oop java_string, int start, int len); |
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170 static char* as_platform_dependent_str(Handle java_string, TRAPS); |
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171 static jchar* as_unicode_string(oop java_string, int& length, TRAPS); |
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172 // produce an ascii string with all other values quoted using \u#### |
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173 static char* as_quoted_ascii(oop java_string); |
| 0 | 174 |
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175 // Compute the hash value for a java.lang.String object which would |
| 6162 | 176 // contain the characters passed in. |
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177 // |
| 6162 | 178 // As the hash value used by the String object itself, in |
| 179 // String.hashCode(). This value is normally calculated in Java code | |
| 180 // in the String.hashCode method(), but is precomputed for String | |
| 181 // objects in the shared archive file. | |
| 182 // hash P(31) from Kernighan & Ritchie | |
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183 // |
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184 // For this reason, THIS ALGORITHM MUST MATCH String.hashCode(). |
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185 template <typename T> static unsigned int hash_code(T* s, int len) { |
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186 unsigned int h = 0; |
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187 while (len-- > 0) { |
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188 h = 31*h + (unsigned int) *s; |
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189 s++; |
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190 } |
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191 return h; |
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192 } |
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193 static unsigned int hash_code(oop java_string); |
| 6162 | 194 |
| 195 // This is the string hash code used by the StringTable, which may be | |
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196 // the same as String.hashCode or an alternate hash code. |
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197 static unsigned int hash_string(oop java_string); |
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198 |
| 0 | 199 static bool equals(oop java_string, jchar* chars, int len); |
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200 static bool equals(oop str1, oop str2); |
| 0 | 201 |
| 202 // Conversion between '.' and '/' formats | |
| 203 static Handle externalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '/', '.', THREAD); } | |
| 204 static Handle internalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '.', '/', THREAD); } | |
| 205 | |
| 206 // Conversion | |
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207 static Symbol* as_symbol(Handle java_string, TRAPS); |
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208 static Symbol* as_symbol_or_null(oop java_string); |
| 0 | 209 |
| 210 // Testers | |
| 211 static bool is_instance(oop obj) { | |
| 1142 | 212 return obj != NULL && obj->klass() == SystemDictionary::String_klass(); |
| 0 | 213 } |
| 214 | |
| 215 // Debugging | |
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216 static void print(oop java_string, outputStream* st); |
| 0 | 217 friend class JavaClasses; |
| 218 }; | |
| 219 | |
| 220 | |
| 221 // Interface to java.lang.Class objects | |
| 222 | |
| 3938 | 223 #define CLASS_INJECTED_FIELDS(macro) \ |
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224 macro(java_lang_Class, klass, intptr_signature, false) \ |
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225 macro(java_lang_Class, array_klass, intptr_signature, false) \ |
| 3938 | 226 macro(java_lang_Class, oop_size, int_signature, false) \ |
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227 macro(java_lang_Class, static_oop_field_count, int_signature, false) \ |
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228 macro(java_lang_Class, protection_domain, object_signature, false) \ |
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229 macro(java_lang_Class, init_lock, object_signature, false) \ |
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230 macro(java_lang_Class, signers, object_signature, false) |
| 3938 | 231 |
| 0 | 232 class java_lang_Class : AllStatic { |
| 3938 | 233 friend class VMStructs; |
| 234 | |
| 0 | 235 private: |
| 236 // The fake offsets are added by the class loader when java.lang.Class is loaded | |
| 237 | |
| 3938 | 238 static int _klass_offset; |
| 239 static int _array_klass_offset; | |
| 0 | 240 |
| 3938 | 241 static int _oop_size_offset; |
| 242 static int _static_oop_field_count_offset; | |
| 0 | 243 |
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244 static int _protection_domain_offset; |
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245 static int _init_lock_offset; |
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246 static int _signers_offset; |
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247 static int _class_loader_offset; |
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248 |
| 0 | 249 static bool offsets_computed; |
| 250 static int classRedefinedCount_offset; | |
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251 |
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252 static GrowableArray<Klass*>* _fixup_mirror_list; |
| 0 | 253 |
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254 static void set_init_lock(oop java_class, oop init_lock); |
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255 static void set_protection_domain(oop java_class, oop protection_domain); |
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256 static void set_class_loader(oop java_class, oop class_loader); |
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257 static void initialize_mirror_fields(KlassHandle k, Handle mirror, Handle protection_domain, TRAPS); |
| 0 | 258 public: |
| 3938 | 259 static void compute_offsets(); |
| 260 | |
| 0 | 261 // Instance creation |
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262 static void create_mirror(KlassHandle k, Handle class_loader, |
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263 Handle protection_domain, TRAPS); |
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264 static void fixup_mirror(KlassHandle k, TRAPS); |
| 0 | 265 static oop create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS); |
| 266 // Conversion | |
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267 static Klass* as_Klass(oop java_class); |
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268 static void set_klass(oop java_class, Klass* klass); |
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269 static BasicType as_BasicType(oop java_class, Klass** reference_klass = NULL); |
| 710 | 270 static BasicType as_BasicType(oop java_class, KlassHandle* reference_klass) { |
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271 Klass* refk_oop = NULL; |
| 710 | 272 BasicType result = as_BasicType(java_class, &refk_oop); |
| 273 (*reference_klass) = KlassHandle(refk_oop); | |
| 274 return result; | |
| 275 } | |
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276 static Symbol* as_signature(oop java_class, bool intern_if_not_found, TRAPS); |
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277 static void print_signature(oop java_class, outputStream *st); |
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278 static const char* as_external_name(oop java_class); |
| 0 | 279 // Testing |
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280 static bool is_instance(oop obj) { |
| 1142 | 281 return obj != NULL && obj->klass() == SystemDictionary::Class_klass(); |
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282 } |
| 0 | 283 static bool is_primitive(oop java_class); |
| 284 static BasicType primitive_type(oop java_class); | |
| 285 static oop primitive_mirror(BasicType t); | |
| 286 // JVM_NewArray support | |
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287 static Klass* array_klass(oop java_class); |
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288 static void set_array_klass(oop java_class, Klass* klass); |
| 0 | 289 // compiler support for class operations |
| 3938 | 290 static int klass_offset_in_bytes() { return _klass_offset; } |
| 291 static int array_klass_offset_in_bytes() { return _array_klass_offset; } | |
| 0 | 292 // Support for classRedefinedCount field |
| 293 static int classRedefinedCount(oop the_class_mirror); | |
| 294 static void set_classRedefinedCount(oop the_class_mirror, int value); | |
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295 |
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296 // Support for embedded per-class oops |
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297 static oop protection_domain(oop java_class); |
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298 static oop init_lock(oop java_class); |
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299 static objArrayOop signers(oop java_class); |
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300 static void set_signers(oop java_class, objArrayOop signers); |
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301 |
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302 static oop class_loader(oop java_class); |
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303 |
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304 static int oop_size(oop java_class); |
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305 static void set_oop_size(oop java_class, int size); |
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306 static int static_oop_field_count(oop java_class); |
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307 static void set_static_oop_field_count(oop java_class, int size); |
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308 |
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309 static GrowableArray<Klass*>* fixup_mirror_list() { |
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310 return _fixup_mirror_list; |
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311 } |
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312 static void set_fixup_mirror_list(GrowableArray<Klass*>* v) { |
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313 _fixup_mirror_list = v; |
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314 } |
| 0 | 315 // Debugging |
| 316 friend class JavaClasses; | |
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317 friend class InstanceKlass; // verification code accesses offsets |
| 0 | 318 friend class ClassFileParser; // access to number_of_fake_fields |
| 319 }; | |
| 320 | |
| 321 // Interface to java.lang.Thread objects | |
| 322 | |
| 323 class java_lang_Thread : AllStatic { | |
| 324 private: | |
| 325 // Note that for this class the layout changed between JDK1.2 and JDK1.3, | |
| 326 // so we compute the offsets at startup rather than hard-wiring them. | |
| 327 static int _name_offset; | |
| 328 static int _group_offset; | |
| 329 static int _contextClassLoader_offset; | |
| 330 static int _inheritedAccessControlContext_offset; | |
| 331 static int _priority_offset; | |
| 332 static int _eetop_offset; | |
| 333 static int _daemon_offset; | |
| 334 static int _stillborn_offset; | |
| 335 static int _stackSize_offset; | |
| 336 static int _tid_offset; | |
| 337 static int _thread_status_offset; | |
| 338 static int _park_blocker_offset; | |
| 339 static int _park_event_offset ; | |
| 340 | |
| 341 static void compute_offsets(); | |
| 342 | |
| 343 public: | |
| 344 // Instance creation | |
| 345 static oop create(); | |
| 346 // Returns the JavaThread associated with the thread obj | |
| 347 static JavaThread* thread(oop java_thread); | |
| 348 // Set JavaThread for instance | |
| 349 static void set_thread(oop java_thread, JavaThread* thread); | |
| 350 // Name | |
| 23802 | 351 static oop name(oop java_thread); |
| 352 static void set_name(oop java_thread, oop name); | |
| 0 | 353 // Priority |
| 354 static ThreadPriority priority(oop java_thread); | |
| 355 static void set_priority(oop java_thread, ThreadPriority priority); | |
| 356 // Thread group | |
| 357 static oop threadGroup(oop java_thread); | |
| 358 // Stillborn | |
| 359 static bool is_stillborn(oop java_thread); | |
| 360 static void set_stillborn(oop java_thread); | |
| 361 // Alive (NOTE: this is not really a field, but provides the correct | |
| 362 // definition without doing a Java call) | |
| 363 static bool is_alive(oop java_thread); | |
| 364 // Daemon | |
| 365 static bool is_daemon(oop java_thread); | |
| 366 static void set_daemon(oop java_thread); | |
| 367 // Context ClassLoader | |
| 368 static oop context_class_loader(oop java_thread); | |
| 369 // Control context | |
| 370 static oop inherited_access_control_context(oop java_thread); | |
| 371 // Stack size hint | |
| 372 static jlong stackSize(oop java_thread); | |
| 373 // Thread ID | |
| 374 static jlong thread_id(oop java_thread); | |
| 375 | |
| 376 // Blocker object responsible for thread parking | |
| 377 static oop park_blocker(oop java_thread); | |
| 378 | |
| 379 // Pointer to type-stable park handler, encoded as jlong. | |
| 380 // Should be set when apparently null | |
| 381 // For details, see unsafe.cpp Unsafe_Unpark | |
| 382 static jlong park_event(oop java_thread); | |
| 383 static bool set_park_event(oop java_thread, jlong ptr); | |
| 384 | |
| 385 // Java Thread Status for JVMTI and M&M use. | |
| 386 // This thread status info is saved in threadStatus field of | |
| 387 // java.lang.Thread java class. | |
| 388 enum ThreadStatus { | |
| 389 NEW = 0, | |
| 390 RUNNABLE = JVMTI_THREAD_STATE_ALIVE + // runnable / running | |
| 391 JVMTI_THREAD_STATE_RUNNABLE, | |
| 392 SLEEPING = JVMTI_THREAD_STATE_ALIVE + // Thread.sleep() | |
| 393 JVMTI_THREAD_STATE_WAITING + | |
| 394 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + | |
| 395 JVMTI_THREAD_STATE_SLEEPING, | |
| 396 IN_OBJECT_WAIT = JVMTI_THREAD_STATE_ALIVE + // Object.wait() | |
| 397 JVMTI_THREAD_STATE_WAITING + | |
| 398 JVMTI_THREAD_STATE_WAITING_INDEFINITELY + | |
| 399 JVMTI_THREAD_STATE_IN_OBJECT_WAIT, | |
| 400 IN_OBJECT_WAIT_TIMED = JVMTI_THREAD_STATE_ALIVE + // Object.wait(long) | |
| 401 JVMTI_THREAD_STATE_WAITING + | |
| 402 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + | |
| 403 JVMTI_THREAD_STATE_IN_OBJECT_WAIT, | |
| 404 PARKED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park() | |
| 405 JVMTI_THREAD_STATE_WAITING + | |
| 406 JVMTI_THREAD_STATE_WAITING_INDEFINITELY + | |
| 407 JVMTI_THREAD_STATE_PARKED, | |
| 408 PARKED_TIMED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park(long) | |
| 409 JVMTI_THREAD_STATE_WAITING + | |
| 410 JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + | |
| 411 JVMTI_THREAD_STATE_PARKED, | |
| 412 BLOCKED_ON_MONITOR_ENTER = JVMTI_THREAD_STATE_ALIVE + // (re-)entering a synchronization block | |
| 413 JVMTI_THREAD_STATE_BLOCKED_ON_MONITOR_ENTER, | |
| 414 TERMINATED = JVMTI_THREAD_STATE_TERMINATED | |
| 415 }; | |
| 416 // Write thread status info to threadStatus field of java.lang.Thread. | |
| 417 static void set_thread_status(oop java_thread_oop, ThreadStatus status); | |
| 418 // Read thread status info from threadStatus field of java.lang.Thread. | |
| 419 static ThreadStatus get_thread_status(oop java_thread_oop); | |
| 420 | |
| 421 static const char* thread_status_name(oop java_thread_oop); | |
| 422 | |
| 423 // Debugging | |
| 424 friend class JavaClasses; | |
| 425 }; | |
| 426 | |
| 427 // Interface to java.lang.ThreadGroup objects | |
| 428 | |
| 429 class java_lang_ThreadGroup : AllStatic { | |
| 430 private: | |
| 431 static int _parent_offset; | |
| 432 static int _name_offset; | |
| 433 static int _threads_offset; | |
| 434 static int _groups_offset; | |
| 435 static int _maxPriority_offset; | |
| 436 static int _destroyed_offset; | |
| 437 static int _daemon_offset; | |
| 438 static int _vmAllowSuspension_offset; | |
| 439 static int _nthreads_offset; | |
| 440 static int _ngroups_offset; | |
| 441 | |
| 442 static void compute_offsets(); | |
| 443 | |
| 444 public: | |
| 445 // parent ThreadGroup | |
| 446 static oop parent(oop java_thread_group); | |
| 447 // name | |
| 448 static typeArrayOop name(oop java_thread_group); | |
| 449 // ("name as oop" accessor is not necessary) | |
| 450 // Number of threads in group | |
| 451 static int nthreads(oop java_thread_group); | |
| 452 // threads | |
| 453 static objArrayOop threads(oop java_thread_group); | |
| 454 // Number of threads in group | |
| 455 static int ngroups(oop java_thread_group); | |
| 456 // groups | |
| 457 static objArrayOop groups(oop java_thread_group); | |
| 458 // maxPriority in group | |
| 459 static ThreadPriority maxPriority(oop java_thread_group); | |
| 460 // Destroyed | |
| 461 static bool is_destroyed(oop java_thread_group); | |
| 462 // Daemon | |
| 463 static bool is_daemon(oop java_thread_group); | |
| 464 // vmAllowSuspension | |
| 465 static bool is_vmAllowSuspension(oop java_thread_group); | |
| 466 // Debugging | |
| 467 friend class JavaClasses; | |
| 468 }; | |
| 469 | |
| 470 | |
| 471 | |
| 472 // Interface to java.lang.Throwable objects | |
| 473 | |
| 474 class java_lang_Throwable: AllStatic { | |
| 475 friend class BacktraceBuilder; | |
| 476 | |
| 477 private: | |
| 478 // Offsets | |
| 479 enum { | |
| 480 hc_backtrace_offset = 0, | |
| 481 hc_detailMessage_offset = 1, | |
| 482 hc_cause_offset = 2, // New since 1.4 | |
| 483 hc_stackTrace_offset = 3 // New since 1.4 | |
| 484 }; | |
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485 enum { |
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486 hc_static_unassigned_stacktrace_offset = 0 // New since 1.7 |
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487 }; |
| 0 | 488 // Trace constants |
| 489 enum { | |
| 490 trace_methods_offset = 0, | |
| 491 trace_bcis_offset = 1, | |
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492 trace_mirrors_offset = 2, |
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493 trace_cprefs_offset = 3, |
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494 trace_next_offset = 4, |
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495 trace_size = 5, |
| 0 | 496 trace_chunk_size = 32 |
| 497 }; | |
| 498 | |
| 499 static int backtrace_offset; | |
| 500 static int detailMessage_offset; | |
| 501 static int cause_offset; | |
| 502 static int stackTrace_offset; | |
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503 static int static_unassigned_stacktrace_offset; |
| 0 | 504 |
| 505 // Printing | |
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506 static char* print_stack_element_to_buffer(Handle mirror, int method, int version, int bci, int cpref); |
| 0 | 507 // StackTrace (programmatic access, new since 1.4) |
| 508 static void clear_stacktrace(oop throwable); | |
| 509 // No stack trace available | |
| 510 static const char* no_stack_trace_message(); | |
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511 // Stacktrace (post JDK 1.7.0 to allow immutability protocol to be followed) |
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512 static void set_stacktrace(oop throwable, oop st_element_array); |
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513 static oop unassigned_stacktrace(); |
| 0 | 514 |
| 515 public: | |
| 516 // Backtrace | |
| 517 static oop backtrace(oop throwable); | |
| 518 static void set_backtrace(oop throwable, oop value); | |
| 519 // Needed by JVMTI to filter out this internal field. | |
| 520 static int get_backtrace_offset() { return backtrace_offset;} | |
| 521 static int get_detailMessage_offset() { return detailMessage_offset;} | |
| 522 // Message | |
| 523 static oop message(oop throwable); | |
| 524 static oop message(Handle throwable); | |
| 525 static void set_message(oop throwable, oop value); | |
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526 static void print_stack_element(outputStream *st, Handle mirror, int method, |
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527 int version, int bci, int cpref); |
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528 static void print_stack_element(outputStream *st, methodHandle method, int bci); |
| 0 | 529 static void print_stack_usage(Handle stream); |
| 530 | |
| 531 // Allocate space for backtrace (created but stack trace not filled in) | |
| 532 static void allocate_backtrace(Handle throwable, TRAPS); | |
| 533 // Fill in current stack trace for throwable with preallocated backtrace (no GC) | |
| 534 static void fill_in_stack_trace_of_preallocated_backtrace(Handle throwable); | |
| 535 // Fill in current stack trace, can cause GC | |
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536 static void fill_in_stack_trace(Handle throwable, methodHandle method, TRAPS); |
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537 static void fill_in_stack_trace(Handle throwable, methodHandle method = methodHandle()); |
| 0 | 538 // Programmatic access to stack trace |
| 539 static oop get_stack_trace_element(oop throwable, int index, TRAPS); | |
| 540 static int get_stack_trace_depth(oop throwable, TRAPS); | |
| 541 // Printing | |
| 542 static void print(oop throwable, outputStream* st); | |
| 543 static void print(Handle throwable, outputStream* st); | |
| 544 static void print_stack_trace(oop throwable, outputStream* st); | |
| 545 // Debugging | |
| 546 friend class JavaClasses; | |
| 547 }; | |
| 548 | |
| 549 | |
| 550 // Interface to java.lang.reflect.AccessibleObject objects | |
| 551 | |
| 552 class java_lang_reflect_AccessibleObject: AllStatic { | |
| 553 private: | |
| 554 // Note that to reduce dependencies on the JDK we compute these | |
| 555 // offsets at run-time. | |
| 556 static int override_offset; | |
| 557 | |
| 558 static void compute_offsets(); | |
| 559 | |
| 560 public: | |
| 561 // Accessors | |
| 562 static jboolean override(oop reflect); | |
| 563 static void set_override(oop reflect, jboolean value); | |
| 564 | |
| 565 // Debugging | |
| 566 friend class JavaClasses; | |
| 567 }; | |
| 568 | |
| 569 | |
| 570 // Interface to java.lang.reflect.Method objects | |
| 571 | |
| 572 class java_lang_reflect_Method : public java_lang_reflect_AccessibleObject { | |
| 573 private: | |
| 574 // Note that to reduce dependencies on the JDK we compute these | |
| 575 // offsets at run-time. | |
| 576 static int clazz_offset; | |
| 577 static int name_offset; | |
| 578 static int returnType_offset; | |
| 579 static int parameterTypes_offset; | |
| 580 static int exceptionTypes_offset; | |
| 581 static int slot_offset; | |
| 582 static int modifiers_offset; | |
| 583 static int signature_offset; | |
| 584 static int annotations_offset; | |
| 585 static int parameter_annotations_offset; | |
| 586 static int annotation_default_offset; | |
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587 static int type_annotations_offset; |
| 0 | 588 |
| 589 static void compute_offsets(); | |
| 590 | |
| 591 public: | |
| 592 // Allocation | |
| 593 static Handle create(TRAPS); | |
| 594 | |
| 595 // Accessors | |
| 596 static oop clazz(oop reflect); | |
| 597 static void set_clazz(oop reflect, oop value); | |
| 598 | |
| 599 static oop name(oop method); | |
| 600 static void set_name(oop method, oop value); | |
| 601 | |
| 602 static oop return_type(oop method); | |
| 603 static void set_return_type(oop method, oop value); | |
| 604 | |
| 605 static oop parameter_types(oop method); | |
| 606 static void set_parameter_types(oop method, oop value); | |
| 607 | |
| 608 static oop exception_types(oop method); | |
| 609 static void set_exception_types(oop method, oop value); | |
| 610 | |
| 611 static int slot(oop reflect); | |
| 612 static void set_slot(oop reflect, int value); | |
| 613 | |
| 614 static int modifiers(oop method); | |
| 615 static void set_modifiers(oop method, int value); | |
| 616 | |
| 617 static bool has_signature_field(); | |
| 618 static oop signature(oop method); | |
| 619 static void set_signature(oop method, oop value); | |
| 620 | |
| 621 static bool has_annotations_field(); | |
| 622 static oop annotations(oop method); | |
| 623 static void set_annotations(oop method, oop value); | |
| 624 | |
| 625 static bool has_parameter_annotations_field(); | |
| 626 static oop parameter_annotations(oop method); | |
| 627 static void set_parameter_annotations(oop method, oop value); | |
| 628 | |
| 629 static bool has_annotation_default_field(); | |
| 630 static oop annotation_default(oop method); | |
| 631 static void set_annotation_default(oop method, oop value); | |
| 632 | |
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633 static bool has_type_annotations_field(); |
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634 static oop type_annotations(oop method); |
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635 static void set_type_annotations(oop method, oop value); |
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636 |
| 0 | 637 // Debugging |
| 638 friend class JavaClasses; | |
| 639 }; | |
| 640 | |
| 641 | |
| 642 // Interface to java.lang.reflect.Constructor objects | |
| 643 | |
| 644 class java_lang_reflect_Constructor : public java_lang_reflect_AccessibleObject { | |
| 645 private: | |
| 646 // Note that to reduce dependencies on the JDK we compute these | |
| 647 // offsets at run-time. | |
| 648 static int clazz_offset; | |
| 649 static int parameterTypes_offset; | |
| 650 static int exceptionTypes_offset; | |
| 651 static int slot_offset; | |
| 652 static int modifiers_offset; | |
| 653 static int signature_offset; | |
| 654 static int annotations_offset; | |
| 655 static int parameter_annotations_offset; | |
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656 static int type_annotations_offset; |
| 0 | 657 |
| 658 static void compute_offsets(); | |
| 659 | |
| 660 public: | |
| 661 // Allocation | |
| 662 static Handle create(TRAPS); | |
| 663 | |
| 664 // Accessors | |
| 665 static oop clazz(oop reflect); | |
| 666 static void set_clazz(oop reflect, oop value); | |
| 667 | |
| 668 static oop parameter_types(oop constructor); | |
| 669 static void set_parameter_types(oop constructor, oop value); | |
| 670 | |
| 671 static oop exception_types(oop constructor); | |
| 672 static void set_exception_types(oop constructor, oop value); | |
| 673 | |
| 674 static int slot(oop reflect); | |
| 675 static void set_slot(oop reflect, int value); | |
| 676 | |
| 677 static int modifiers(oop constructor); | |
| 678 static void set_modifiers(oop constructor, int value); | |
| 679 | |
| 680 static bool has_signature_field(); | |
| 681 static oop signature(oop constructor); | |
| 682 static void set_signature(oop constructor, oop value); | |
| 683 | |
| 684 static bool has_annotations_field(); | |
| 685 static oop annotations(oop constructor); | |
| 686 static void set_annotations(oop constructor, oop value); | |
| 687 | |
| 688 static bool has_parameter_annotations_field(); | |
| 689 static oop parameter_annotations(oop method); | |
| 690 static void set_parameter_annotations(oop method, oop value); | |
| 691 | |
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692 static bool has_type_annotations_field(); |
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693 static oop type_annotations(oop constructor); |
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694 static void set_type_annotations(oop constructor, oop value); |
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695 |
| 0 | 696 // Debugging |
| 697 friend class JavaClasses; | |
| 698 }; | |
| 699 | |
| 700 | |
| 701 // Interface to java.lang.reflect.Field objects | |
| 702 | |
| 703 class java_lang_reflect_Field : public java_lang_reflect_AccessibleObject { | |
| 704 private: | |
| 705 // Note that to reduce dependencies on the JDK we compute these | |
| 706 // offsets at run-time. | |
| 707 static int clazz_offset; | |
| 708 static int name_offset; | |
| 709 static int type_offset; | |
| 710 static int slot_offset; | |
| 711 static int modifiers_offset; | |
| 712 static int signature_offset; | |
| 713 static int annotations_offset; | |
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714 static int type_annotations_offset; |
| 0 | 715 |
| 716 static void compute_offsets(); | |
| 717 | |
| 718 public: | |
| 719 // Allocation | |
| 720 static Handle create(TRAPS); | |
| 721 | |
| 722 // Accessors | |
| 723 static oop clazz(oop reflect); | |
| 724 static void set_clazz(oop reflect, oop value); | |
| 725 | |
| 726 static oop name(oop field); | |
| 727 static void set_name(oop field, oop value); | |
| 728 | |
| 729 static oop type(oop field); | |
| 730 static void set_type(oop field, oop value); | |
| 731 | |
| 732 static int slot(oop reflect); | |
| 733 static void set_slot(oop reflect, int value); | |
| 734 | |
| 735 static int modifiers(oop field); | |
| 736 static void set_modifiers(oop field, int value); | |
| 737 | |
| 738 static bool has_signature_field(); | |
| 739 static oop signature(oop constructor); | |
| 740 static void set_signature(oop constructor, oop value); | |
| 741 | |
| 742 static bool has_annotations_field(); | |
| 743 static oop annotations(oop constructor); | |
| 744 static void set_annotations(oop constructor, oop value); | |
| 745 | |
| 746 static bool has_parameter_annotations_field(); | |
| 747 static oop parameter_annotations(oop method); | |
| 748 static void set_parameter_annotations(oop method, oop value); | |
| 749 | |
| 750 static bool has_annotation_default_field(); | |
| 751 static oop annotation_default(oop method); | |
| 752 static void set_annotation_default(oop method, oop value); | |
| 753 | |
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754 static bool has_type_annotations_field(); |
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755 static oop type_annotations(oop field); |
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756 static void set_type_annotations(oop field, oop value); |
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757 |
| 0 | 758 // Debugging |
| 759 friend class JavaClasses; | |
| 760 }; | |
| 761 | |
|
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762 class java_lang_reflect_Parameter { |
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763 private: |
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764 // Note that to reduce dependencies on the JDK we compute these |
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765 // offsets at run-time. |
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766 static int name_offset; |
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767 static int modifiers_offset; |
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768 static int index_offset; |
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769 static int executable_offset; |
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770 |
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771 static void compute_offsets(); |
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772 |
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773 public: |
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774 // Allocation |
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775 static Handle create(TRAPS); |
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776 |
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777 // Accessors |
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778 static oop name(oop field); |
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779 static void set_name(oop field, oop value); |
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780 |
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781 static int index(oop reflect); |
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782 static void set_index(oop reflect, int value); |
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783 |
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784 static int modifiers(oop reflect); |
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785 static void set_modifiers(oop reflect, int value); |
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786 |
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787 static oop executable(oop constructor); |
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788 static void set_executable(oop constructor, oop value); |
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789 |
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790 friend class JavaClasses; |
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791 }; |
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792 |
| 0 | 793 // Interface to sun.reflect.ConstantPool objects |
| 794 class sun_reflect_ConstantPool { | |
| 795 private: | |
| 796 // Note that to reduce dependencies on the JDK we compute these | |
| 797 // offsets at run-time. | |
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798 static int _oop_offset; |
| 0 | 799 |
| 800 static void compute_offsets(); | |
| 801 | |
| 802 public: | |
| 803 // Allocation | |
| 804 static Handle create(TRAPS); | |
| 805 | |
| 806 // Accessors | |
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807 static void set_cp(oop reflect, ConstantPool* value); |
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808 static int oop_offset() { |
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809 return _oop_offset; |
| 0 | 810 } |
| 811 | |
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812 static ConstantPool* get_cp(oop reflect); |
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813 |
| 0 | 814 // Debugging |
| 815 friend class JavaClasses; | |
| 816 }; | |
| 817 | |
| 818 // Interface to sun.reflect.UnsafeStaticFieldAccessorImpl objects | |
| 819 class sun_reflect_UnsafeStaticFieldAccessorImpl { | |
| 820 private: | |
| 821 static int _base_offset; | |
| 822 static void compute_offsets(); | |
| 823 | |
| 824 public: | |
| 825 static int base_offset() { | |
| 826 return _base_offset; | |
| 827 } | |
| 828 | |
| 829 // Debugging | |
| 830 friend class JavaClasses; | |
| 831 }; | |
| 832 | |
| 833 // Interface to java.lang primitive type boxing objects: | |
| 834 // - java.lang.Boolean | |
| 835 // - java.lang.Character | |
| 836 // - java.lang.Float | |
| 837 // - java.lang.Double | |
| 838 // - java.lang.Byte | |
| 839 // - java.lang.Short | |
| 840 // - java.lang.Integer | |
| 841 // - java.lang.Long | |
| 842 | |
| 843 // This could be separated out into 8 individual classes. | |
| 844 | |
| 845 class java_lang_boxing_object: AllStatic { | |
| 846 private: | |
| 847 enum { | |
| 848 hc_value_offset = 0 | |
| 849 }; | |
| 850 static int value_offset; | |
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851 static int long_value_offset; |
| 0 | 852 |
|
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853 static oop initialize_and_allocate(BasicType type, TRAPS); |
| 0 | 854 public: |
| 855 // Allocation. Returns a boxed value, or NULL for invalid type. | |
| 856 static oop create(BasicType type, jvalue* value, TRAPS); | |
| 857 // Accessors. Returns the basic type being boxed, or T_ILLEGAL for invalid oop. | |
| 858 static BasicType get_value(oop box, jvalue* value); | |
| 859 static BasicType set_value(oop box, jvalue* value); | |
|
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860 static BasicType basic_type(oop box); |
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861 static bool is_instance(oop box) { return basic_type(box) != T_ILLEGAL; } |
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862 static bool is_instance(oop box, BasicType type) { return basic_type(box) == type; } |
|
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863 static void print(oop box, outputStream* st) { jvalue value; print(get_value(box, &value), &value, st); } |
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864 static void print(BasicType type, jvalue* value, outputStream* st); |
| 0 | 865 |
|
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866 static int value_offset_in_bytes(BasicType type) { |
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867 return ( type == T_LONG || type == T_DOUBLE ) ? long_value_offset : |
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868 value_offset; |
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869 } |
| 0 | 870 |
| 871 // Debugging | |
| 872 friend class JavaClasses; | |
| 873 }; | |
| 874 | |
| 875 | |
| 876 | |
| 877 // Interface to java.lang.ref.Reference objects | |
| 878 | |
| 879 class java_lang_ref_Reference: AllStatic { | |
| 880 public: | |
| 881 enum { | |
| 882 hc_referent_offset = 0, | |
| 883 hc_queue_offset = 1, | |
| 884 hc_next_offset = 2, | |
| 885 hc_discovered_offset = 3 // Is not last, see SoftRefs. | |
| 886 }; | |
| 887 enum { | |
| 888 hc_static_lock_offset = 0, | |
| 889 hc_static_pending_offset = 1 | |
| 890 }; | |
| 891 | |
| 892 static int referent_offset; | |
| 893 static int queue_offset; | |
| 894 static int next_offset; | |
| 895 static int discovered_offset; | |
| 896 static int static_lock_offset; | |
| 897 static int static_pending_offset; | |
| 898 static int number_of_fake_oop_fields; | |
| 899 | |
| 900 // Accessors | |
|
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901 static oop referent(oop ref) { |
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902 return ref->obj_field(referent_offset); |
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903 } |
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904 static void set_referent(oop ref, oop value) { |
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905 ref->obj_field_put(referent_offset, value); |
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906 } |
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907 static void set_referent_raw(oop ref, oop value) { |
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908 ref->obj_field_put_raw(referent_offset, value); |
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909 } |
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910 static HeapWord* referent_addr(oop ref) { |
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911 return ref->obj_field_addr<HeapWord>(referent_offset); |
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912 } |
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913 static oop next(oop ref) { |
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914 return ref->obj_field(next_offset); |
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915 } |
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916 static void set_next(oop ref, oop value) { |
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917 ref->obj_field_put(next_offset, value); |
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918 } |
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919 static void set_next_raw(oop ref, oop value) { |
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920 ref->obj_field_put_raw(next_offset, value); |
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921 } |
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922 static HeapWord* next_addr(oop ref) { |
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923 return ref->obj_field_addr<HeapWord>(next_offset); |
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924 } |
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925 static oop discovered(oop ref) { |
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926 return ref->obj_field(discovered_offset); |
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927 } |
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928 static void set_discovered(oop ref, oop value) { |
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929 ref->obj_field_put(discovered_offset, value); |
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930 } |
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931 static void set_discovered_raw(oop ref, oop value) { |
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932 ref->obj_field_put_raw(discovered_offset, value); |
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933 } |
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934 static HeapWord* discovered_addr(oop ref) { |
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935 return ref->obj_field_addr<HeapWord>(discovered_offset); |
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936 } |
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937 // Accessors for statics |
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938 static oop pending_list_lock(); |
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939 static oop pending_list(); |
| 0 | 940 |
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941 static HeapWord* pending_list_lock_addr(); |
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942 static HeapWord* pending_list_addr(); |
| 0 | 943 }; |
| 944 | |
| 945 | |
| 946 // Interface to java.lang.ref.SoftReference objects | |
| 947 | |
| 948 class java_lang_ref_SoftReference: public java_lang_ref_Reference { | |
| 949 public: | |
| 950 enum { | |
| 951 // The timestamp is a long field and may need to be adjusted for alignment. | |
|
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952 hc_timestamp_offset = hc_discovered_offset + 1 |
| 0 | 953 }; |
| 954 enum { | |
| 955 hc_static_clock_offset = 0 | |
| 956 }; | |
| 957 | |
| 958 static int timestamp_offset; | |
| 959 static int static_clock_offset; | |
| 960 | |
| 961 // Accessors | |
| 962 static jlong timestamp(oop ref); | |
| 963 | |
| 964 // Accessors for statics | |
| 965 static jlong clock(); | |
| 966 static void set_clock(jlong value); | |
| 967 }; | |
| 968 | |
| 969 | |
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970 // Interface to java.lang.invoke.MethodHandle objects |
| 710 | 971 |
| 972 class MethodHandleEntry; | |
| 973 | |
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974 class java_lang_invoke_MethodHandle: AllStatic { |
| 710 | 975 friend class JavaClasses; |
| 976 | |
| 977 private: | |
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978 static int _type_offset; // the MethodType of this MH |
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979 static int _form_offset; // the LambdaForm of this MH |
| 710 | 980 |
| 981 static void compute_offsets(); | |
| 982 | |
| 983 public: | |
| 984 // Accessors | |
| 985 static oop type(oop mh); | |
| 986 static void set_type(oop mh, oop mtype); | |
| 987 | |
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988 static oop form(oop mh); |
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989 static void set_form(oop mh, oop lform); |
| 710 | 990 |
| 991 // Testers | |
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992 static bool is_subclass(Klass* klass) { |
| 6983 | 993 return klass->is_subclass_of(SystemDictionary::MethodHandle_klass()); |
| 710 | 994 } |
| 995 static bool is_instance(oop obj) { | |
| 996 return obj != NULL && is_subclass(obj->klass()); | |
| 997 } | |
| 998 | |
| 999 // Accessors for code generation: | |
| 1000 static int type_offset_in_bytes() { return _type_offset; } | |
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1001 static int form_offset_in_bytes() { return _form_offset; } |
| 710 | 1002 }; |
| 1003 | |
|
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1004 // Interface to java.lang.invoke.DirectMethodHandle objects |
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1005 |
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1006 class java_lang_invoke_DirectMethodHandle: AllStatic { |
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1007 friend class JavaClasses; |
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1008 |
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1009 private: |
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1010 static int _member_offset; // the MemberName of this DMH |
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1011 |
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1012 static void compute_offsets(); |
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1013 |
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1014 public: |
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1015 // Accessors |
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1016 static oop member(oop mh); |
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1017 |
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1018 // Testers |
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1019 static bool is_subclass(Klass* klass) { |
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1020 return klass->is_subclass_of(SystemDictionary::DirectMethodHandle_klass()); |
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1021 } |
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1022 static bool is_instance(oop obj) { |
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1023 return obj != NULL && is_subclass(obj->klass()); |
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1024 } |
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1025 |
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1026 // Accessors for code generation: |
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1027 static int member_offset_in_bytes() { return _member_offset; } |
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1028 }; |
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1029 |
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1030 // Interface to java.lang.invoke.LambdaForm objects |
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1031 // (These are a private interface for managing adapter code generation.) |
| 3938 | 1032 |
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1033 class java_lang_invoke_LambdaForm: AllStatic { |
| 710 | 1034 friend class JavaClasses; |
| 1035 | |
| 1036 private: | |
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1037 static int _vmentry_offset; // type is MemberName |
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1038 |
| 710 | 1039 static void compute_offsets(); |
| 1040 | |
| 1041 public: | |
| 1042 // Accessors | |
|
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1043 static oop vmentry(oop lform); |
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1044 static void set_vmentry(oop lform, oop invoker); |
| 710 | 1045 |
| 1046 // Testers | |
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1047 static bool is_subclass(Klass* klass) { |
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1048 return SystemDictionary::LambdaForm_klass() != NULL && |
| 6983 | 1049 klass->is_subclass_of(SystemDictionary::LambdaForm_klass()); |
| 710 | 1050 } |
| 1051 static bool is_instance(oop obj) { | |
| 1052 return obj != NULL && is_subclass(obj->klass()); | |
| 1053 } | |
| 1054 | |
| 1055 // Accessors for code generation: | |
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1056 static int vmentry_offset_in_bytes() { return _vmentry_offset; } |
| 710 | 1057 }; |
| 1058 | |
|
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1059 |
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1060 // Interface to java.lang.invoke.MemberName objects |
| 710 | 1061 // (These are a private interface for Java code to query the class hierarchy.) |
| 1062 | |
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1063 #define MEMBERNAME_INJECTED_FIELDS(macro) \ |
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1064 macro(java_lang_invoke_MemberName, vmloader, object_signature, false) \ |
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1065 macro(java_lang_invoke_MemberName, vmindex, intptr_signature, false) \ |
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1066 macro(java_lang_invoke_MemberName, vmtarget, intptr_signature, false) |
| 3938 | 1067 |
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1068 class java_lang_invoke_MemberName: AllStatic { |
| 710 | 1069 friend class JavaClasses; |
| 1070 | |
| 1071 private: | |
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1072 // From java.lang.invoke.MemberName: |
| 710 | 1073 // private Class<?> clazz; // class in which the method is defined |
| 1074 // private String name; // may be null if not yet materialized | |
| 1075 // private Object type; // may be null if not yet materialized | |
| 1076 // private int flags; // modifier bits; see reflect.Modifier | |
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1077 // private intptr vmtarget; // VM-specific target value |
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1078 // private intptr_t vmindex; // member index within class or interface |
| 710 | 1079 static int _clazz_offset; |
| 1080 static int _name_offset; | |
| 1081 static int _type_offset; | |
| 1082 static int _flags_offset; | |
| 1083 static int _vmtarget_offset; | |
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1084 static int _vmloader_offset; |
| 710 | 1085 static int _vmindex_offset; |
| 1086 | |
| 1087 static void compute_offsets(); | |
| 1088 | |
| 1089 public: | |
| 1090 // Accessors | |
| 1091 static oop clazz(oop mname); | |
| 1092 static void set_clazz(oop mname, oop clazz); | |
| 1093 | |
| 1094 static oop type(oop mname); | |
| 1095 static void set_type(oop mname, oop type); | |
| 1096 | |
| 1097 static oop name(oop mname); | |
| 1098 static void set_name(oop mname, oop name); | |
| 1099 | |
| 1100 static int flags(oop mname); | |
| 1101 static void set_flags(oop mname, int flags); | |
| 1102 | |
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1103 static Metadata* vmtarget(oop mname); |
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1104 static void set_vmtarget(oop mname, Metadata* target); |
| 710 | 1105 |
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1106 static intptr_t vmindex(oop mname); |
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1107 static void set_vmindex(oop mname, intptr_t index); |
| 710 | 1108 |
| 1109 // Testers | |
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1110 static bool is_subclass(Klass* klass) { |
| 6983 | 1111 return klass->is_subclass_of(SystemDictionary::MemberName_klass()); |
| 710 | 1112 } |
| 1113 static bool is_instance(oop obj) { | |
| 1114 return obj != NULL && is_subclass(obj->klass()); | |
| 1115 } | |
| 1116 | |
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1117 static bool is_method(oop obj); |
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1118 |
| 710 | 1119 // Relevant integer codes (keep these in synch. with MethodHandleNatives.Constants): |
| 1120 enum { | |
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1121 MN_IS_METHOD = 0x00010000, // method (not constructor) |
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1122 MN_IS_CONSTRUCTOR = 0x00020000, // constructor |
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1123 MN_IS_FIELD = 0x00040000, // field |
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1124 MN_IS_TYPE = 0x00080000, // nested type |
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1125 MN_CALLER_SENSITIVE = 0x00100000, // @CallerSensitive annotation detected |
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1126 MN_REFERENCE_KIND_SHIFT = 24, // refKind |
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1127 MN_REFERENCE_KIND_MASK = 0x0F000000 >> MN_REFERENCE_KIND_SHIFT, |
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1128 // The SEARCH_* bits are not for MN.flags but for the matchFlags argument of MHN.getMembers: |
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1129 MN_SEARCH_SUPERCLASSES = 0x00100000, // walk super classes |
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1130 MN_SEARCH_INTERFACES = 0x00200000 // walk implemented interfaces |
| 710 | 1131 }; |
| 1132 | |
| 1133 // Accessors for code generation: | |
| 1134 static int clazz_offset_in_bytes() { return _clazz_offset; } | |
| 1135 static int type_offset_in_bytes() { return _type_offset; } | |
| 1136 static int name_offset_in_bytes() { return _name_offset; } | |
| 1137 static int flags_offset_in_bytes() { return _flags_offset; } | |
| 1138 static int vmtarget_offset_in_bytes() { return _vmtarget_offset; } | |
| 1139 static int vmindex_offset_in_bytes() { return _vmindex_offset; } | |
| 1140 }; | |
| 1141 | |
| 1142 | |
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1143 // Interface to java.lang.invoke.MethodType objects |
| 710 | 1144 |
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1145 class java_lang_invoke_MethodType: AllStatic { |
| 710 | 1146 friend class JavaClasses; |
| 1147 | |
| 1148 private: | |
| 1149 static int _rtype_offset; | |
| 1150 static int _ptypes_offset; | |
| 1151 | |
| 1152 static void compute_offsets(); | |
| 1153 | |
| 1154 public: | |
| 1155 // Accessors | |
| 1156 static oop rtype(oop mt); | |
| 1157 static objArrayOop ptypes(oop mt); | |
| 1158 | |
| 1159 static oop ptype(oop mt, int index); | |
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1160 static int ptype_count(oop mt); |
| 710 | 1161 |
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1162 static int ptype_slot_count(oop mt); // extra counts for long/double |
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1163 static int rtype_slot_count(oop mt); // extra counts for long/double |
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1164 |
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1165 static Symbol* as_signature(oop mt, bool intern_if_not_found, TRAPS); |
| 710 | 1166 static void print_signature(oop mt, outputStream* st); |
| 1167 | |
| 1168 static bool is_instance(oop obj) { | |
| 1169 return obj != NULL && obj->klass() == SystemDictionary::MethodType_klass(); | |
| 1170 } | |
| 1171 | |
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1172 static bool equals(oop mt1, oop mt2); |
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1173 |
| 710 | 1174 // Accessors for code generation: |
| 1175 static int rtype_offset_in_bytes() { return _rtype_offset; } | |
| 1176 static int ptypes_offset_in_bytes() { return _ptypes_offset; } | |
| 1177 }; | |
| 1178 | |
| 1179 | |
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1180 // Interface to java.lang.invoke.CallSite objects |
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1181 |
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1182 class java_lang_invoke_CallSite: AllStatic { |
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1183 friend class JavaClasses; |
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1184 |
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1185 private: |
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1186 static int _target_offset; |
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1187 |
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1188 static void compute_offsets(); |
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1189 |
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1190 public: |
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1191 // Accessors |
|
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1192 static oop target( oop site) { return site->obj_field( _target_offset); } |
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1193 static void set_target( oop site, oop target) { site->obj_field_put( _target_offset, target); } |
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1194 |
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1195 static volatile oop target_volatile(oop site) { return site->obj_field_volatile( _target_offset); } |
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1196 static void set_target_volatile(oop site, oop target) { site->obj_field_put_volatile(_target_offset, target); } |
|
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1197 |
|
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1198 // Testers |
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1199 static bool is_subclass(Klass* klass) { |
| 6983 | 1200 return klass->is_subclass_of(SystemDictionary::CallSite_klass()); |
|
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1201 } |
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1202 static bool is_instance(oop obj) { |
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1203 return obj != NULL && is_subclass(obj->klass()); |
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1204 } |
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1205 |
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1206 // Accessors for code generation: |
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1207 static int target_offset_in_bytes() { return _target_offset; } |
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1208 }; |
| 710 | 1209 |
| 1210 | |
| 0 | 1211 // Interface to java.security.AccessControlContext objects |
| 1212 | |
| 1213 class java_security_AccessControlContext: AllStatic { | |
| 1214 private: | |
| 1215 // Note that for this class the layout changed between JDK1.2 and JDK1.3, | |
| 1216 // so we compute the offsets at startup rather than hard-wiring them. | |
| 1217 static int _context_offset; | |
| 1218 static int _privilegedContext_offset; | |
| 1219 static int _isPrivileged_offset; | |
| 11010 | 1220 static int _isAuthorized_offset; |
| 0 | 1221 |
| 1222 static void compute_offsets(); | |
| 1223 public: | |
| 1224 static oop create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS); | |
| 1225 | |
| 11010 | 1226 static bool is_authorized(Handle context); |
| 1227 | |
| 0 | 1228 // Debugging/initialization |
| 1229 friend class JavaClasses; | |
| 1230 }; | |
| 1231 | |
| 1232 | |
| 1233 // Interface to java.lang.ClassLoader objects | |
| 1234 | |
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1235 #define CLASSLOADER_INJECTED_FIELDS(macro) \ |
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1236 macro(java_lang_ClassLoader, loader_data, intptr_signature, false) |
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1237 |
| 0 | 1238 class java_lang_ClassLoader : AllStatic { |
| 1239 private: | |
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1240 // The fake offsets are added by the class loader when java.lang.Class is loaded |
| 0 | 1241 enum { |
| 1242 hc_parent_offset = 0 | |
| 1243 }; | |
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1244 static int _loader_data_offset; |
| 3938 | 1245 static bool offsets_computed; |
| 0 | 1246 static int parent_offset; |
| 3938 | 1247 static int parallelCapable_offset; |
| 1248 | |
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1249 public: |
| 3938 | 1250 static void compute_offsets(); |
| 0 | 1251 |
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1252 static ClassLoaderData** loader_data_addr(oop loader); |
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1253 static ClassLoaderData* loader_data(oop loader); |
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1254 |
| 0 | 1255 static oop parent(oop loader); |
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1256 static bool isAncestor(oop loader, oop cl); |
| 0 | 1257 |
| 3938 | 1258 // Support for parallelCapable field |
| 1259 static bool parallelCapable(oop the_class_mirror); | |
| 1260 | |
| 0 | 1261 static bool is_trusted_loader(oop loader); |
| 1262 | |
| 1263 // Fix for 4474172 | |
| 1264 static oop non_reflection_class_loader(oop loader); | |
| 1265 | |
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1266 // Testers |
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1267 static bool is_subclass(Klass* klass) { |
| 6983 | 1268 return klass->is_subclass_of(SystemDictionary::ClassLoader_klass()); |
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1269 } |
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1270 static bool is_instance(oop obj) { |
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1271 return obj != NULL && is_subclass(obj->klass()); |
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1272 } |
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1273 |
| 0 | 1274 // Debugging |
| 1275 friend class JavaClasses; | |
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1276 friend class ClassFileParser; // access to number_of_fake_fields |
| 0 | 1277 }; |
| 1278 | |
| 1279 | |
| 1280 // Interface to java.lang.System objects | |
| 1281 | |
| 1282 class java_lang_System : AllStatic { | |
| 1283 private: | |
| 1284 enum { | |
| 1285 hc_static_in_offset = 0, | |
| 1286 hc_static_out_offset = 1, | |
| 11010 | 1287 hc_static_err_offset = 2, |
| 1288 hc_static_security_offset = 3 | |
| 0 | 1289 }; |
| 1290 | |
| 1291 static int static_in_offset; | |
| 1292 static int static_out_offset; | |
| 1293 static int static_err_offset; | |
| 11010 | 1294 static int static_security_offset; |
| 0 | 1295 |
| 1296 public: | |
| 1297 static int in_offset_in_bytes(); | |
| 1298 static int out_offset_in_bytes(); | |
| 1299 static int err_offset_in_bytes(); | |
| 1300 | |
| 11010 | 1301 static bool has_security_manager(); |
| 1302 | |
| 0 | 1303 // Debugging |
| 1304 friend class JavaClasses; | |
| 1305 }; | |
| 1306 | |
| 1307 | |
| 1308 // Interface to java.lang.StackTraceElement objects | |
| 1309 | |
| 1310 class java_lang_StackTraceElement: AllStatic { | |
| 1311 private: | |
| 1312 enum { | |
| 1313 hc_declaringClass_offset = 0, | |
| 1314 hc_methodName_offset = 1, | |
| 1315 hc_fileName_offset = 2, | |
| 1316 hc_lineNumber_offset = 3 | |
| 1317 }; | |
| 1318 | |
| 1319 static int declaringClass_offset; | |
| 1320 static int methodName_offset; | |
| 1321 static int fileName_offset; | |
| 1322 static int lineNumber_offset; | |
| 1323 | |
| 1324 public: | |
| 1325 // Setters | |
| 1326 static void set_declaringClass(oop element, oop value); | |
| 1327 static void set_methodName(oop element, oop value); | |
| 1328 static void set_fileName(oop element, oop value); | |
| 1329 static void set_lineNumber(oop element, int value); | |
| 1330 | |
| 1331 // Create an instance of StackTraceElement | |
|
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1332 static oop create(Handle mirror, int method, int version, int bci, int cpref, TRAPS); |
|
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1333 static oop create(methodHandle method, int bci, TRAPS); |
| 0 | 1334 |
| 1335 // Debugging | |
| 1336 friend class JavaClasses; | |
| 1337 }; | |
| 1338 | |
| 1339 | |
| 1340 // Interface to java.lang.AssertionStatusDirectives objects | |
| 1341 | |
| 1342 class java_lang_AssertionStatusDirectives: AllStatic { | |
| 1343 private: | |
| 1344 enum { | |
| 1345 hc_classes_offset, | |
| 1346 hc_classEnabled_offset, | |
| 1347 hc_packages_offset, | |
| 1348 hc_packageEnabled_offset, | |
| 1349 hc_deflt_offset | |
| 1350 }; | |
| 1351 | |
| 1352 static int classes_offset; | |
| 1353 static int classEnabled_offset; | |
| 1354 static int packages_offset; | |
| 1355 static int packageEnabled_offset; | |
| 1356 static int deflt_offset; | |
| 1357 | |
| 1358 public: | |
| 1359 // Setters | |
| 1360 static void set_classes(oop obj, oop val); | |
| 1361 static void set_classEnabled(oop obj, oop val); | |
| 1362 static void set_packages(oop obj, oop val); | |
| 1363 static void set_packageEnabled(oop obj, oop val); | |
| 1364 static void set_deflt(oop obj, bool val); | |
| 1365 // Debugging | |
| 1366 friend class JavaClasses; | |
| 1367 }; | |
| 1368 | |
| 1369 | |
| 1370 class java_nio_Buffer: AllStatic { | |
| 1371 private: | |
| 1372 static int _limit_offset; | |
| 1373 | |
| 1374 public: | |
| 1375 static int limit_offset(); | |
| 1376 static void compute_offsets(); | |
| 1377 }; | |
| 1378 | |
| 1379 class java_util_concurrent_locks_AbstractOwnableSynchronizer : AllStatic { | |
| 1380 private: | |
| 1381 static int _owner_offset; | |
| 1382 public: | |
| 1383 static void initialize(TRAPS); | |
| 1384 static oop get_owner_threadObj(oop obj); | |
| 1385 }; | |
| 1386 | |
| 3938 | 1387 // Use to declare fields that need to be injected into Java classes |
| 1388 // for the JVM to use. The name_index and signature_index are | |
| 1389 // declared in vmSymbols. The may_be_java flag is used to declare | |
| 1390 // fields that might already exist in Java but should be injected if | |
| 1391 // they don't. Otherwise the field is unconditionally injected and | |
| 1392 // the JVM uses the injected one. This is to ensure that name | |
| 1393 // collisions don't occur. In general may_be_java should be false | |
| 1394 // unless there's a good reason. | |
| 1395 | |
| 1396 class InjectedField { | |
| 1397 public: | |
| 1398 const SystemDictionary::WKID klass_id; | |
| 1399 const vmSymbols::SID name_index; | |
| 1400 const vmSymbols::SID signature_index; | |
| 1401 const bool may_be_java; | |
| 1402 | |
| 1403 | |
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1404 Klass* klass() const { return SystemDictionary::well_known_klass(klass_id); } |
| 3938 | 1405 Symbol* name() const { return lookup_symbol(name_index); } |
| 1406 Symbol* signature() const { return lookup_symbol(signature_index); } | |
| 1407 | |
| 1408 int compute_offset(); | |
| 1409 | |
| 1410 // Find the Symbol for this index | |
| 1411 static Symbol* lookup_symbol(int symbol_index) { | |
| 1412 return vmSymbols::symbol_at((vmSymbols::SID)symbol_index); | |
| 1413 } | |
| 1414 }; | |
| 1415 | |
| 1416 #define DECLARE_INJECTED_FIELD_ENUM(klass, name, signature, may_be_java) \ | |
| 1417 klass##_##name##_enum, | |
| 1418 | |
| 1419 #define ALL_INJECTED_FIELDS(macro) \ | |
| 1420 CLASS_INJECTED_FIELDS(macro) \ | |
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1421 CLASSLOADER_INJECTED_FIELDS(macro) \ |
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1422 MEMBERNAME_INJECTED_FIELDS(macro) |
| 3938 | 1423 |
| 0 | 1424 // Interface to hard-coded offset checking |
| 1425 | |
| 1426 class JavaClasses : AllStatic { | |
| 1427 private: | |
| 3938 | 1428 |
| 1429 static InjectedField _injected_fields[]; | |
| 1430 | |
| 0 | 1431 static bool check_offset(const char *klass_name, int offset, const char *field_name, const char* field_sig) PRODUCT_RETURN0; |
| 1432 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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1433 static bool check_constant(const char *klass_name, int constant, const char *field_name, const char* field_sig) PRODUCT_RETURN0; |
| 3938 | 1434 |
| 0 | 1435 public: |
| 3938 | 1436 enum InjectedFieldID { |
| 1437 ALL_INJECTED_FIELDS(DECLARE_INJECTED_FIELD_ENUM) | |
| 1438 MAX_enum | |
| 1439 }; | |
| 1440 | |
| 1441 static int compute_injected_offset(InjectedFieldID id); | |
| 1442 | |
| 0 | 1443 static void compute_hard_coded_offsets(); |
| 1444 static void compute_offsets(); | |
| 1445 static void check_offsets() PRODUCT_RETURN; | |
| 3938 | 1446 |
| 1447 static InjectedField* get_injected(Symbol* class_name, int* field_count); | |
| 0 | 1448 }; |
| 1972 | 1449 |
| 3938 | 1450 #undef DECLARE_INJECTED_FIELD_ENUM |
| 1451 | |
| 1972 | 1452 #endif // SHARE_VM_CLASSFILE_JAVACLASSES_HPP |