Mercurial > hg > graal-compiler
annotate src/share/vm/classfile/javaClasses.cpp @ 6162:e9140bf80b4a
7158800: Improve storage of symbol tables
Summary: Use an alternate version of hashing algorithm for symbol string tables and after a certain bucket size to improve performance
Reviewed-by: pbk, kamg, dlong, kvn, fparain
| author | coleenp |
|---|---|
| date | Wed, 13 Jun 2012 19:52:59 -0400 |
| parents | 8f972594effc |
| children | 58ad5f22317e |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 6057 | 2 * Copyright (c) 1997, 2012, 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 #include "precompiled.hpp" |
| 6162 | 26 #include "classfile/altHashing.hpp" |
| 1972 | 27 #include "classfile/javaClasses.hpp" |
| 28 #include "classfile/symbolTable.hpp" | |
| 29 #include "classfile/vmSymbols.hpp" | |
| 30 #include "code/debugInfo.hpp" | |
| 31 #include "code/pcDesc.hpp" | |
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32 #include "compiler/compilerOracle.hpp" |
| 1972 | 33 #include "interpreter/interpreter.hpp" |
| 34 #include "memory/oopFactory.hpp" | |
| 35 #include "memory/resourceArea.hpp" | |
| 36 #include "memory/universe.inline.hpp" | |
| 3938 | 37 #include "oops/fieldStreams.hpp" |
| 1972 | 38 #include "oops/instanceKlass.hpp" |
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39 #include "oops/instanceMirrorKlass.hpp" |
| 1972 | 40 #include "oops/klass.hpp" |
| 41 #include "oops/klassOop.hpp" | |
| 42 #include "oops/methodOop.hpp" | |
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43 #include "oops/symbol.hpp" |
| 1972 | 44 #include "oops/typeArrayOop.hpp" |
| 45 #include "runtime/fieldDescriptor.hpp" | |
| 46 #include "runtime/handles.inline.hpp" | |
| 47 #include "runtime/interfaceSupport.hpp" | |
| 48 #include "runtime/java.hpp" | |
| 49 #include "runtime/javaCalls.hpp" | |
| 50 #include "runtime/safepoint.hpp" | |
| 51 #include "runtime/vframe.hpp" | |
| 52 #include "utilities/preserveException.hpp" | |
| 53 #ifdef TARGET_OS_FAMILY_linux | |
| 54 # include "thread_linux.inline.hpp" | |
| 55 #endif | |
| 56 #ifdef TARGET_OS_FAMILY_solaris | |
| 57 # include "thread_solaris.inline.hpp" | |
| 58 #endif | |
| 59 #ifdef TARGET_OS_FAMILY_windows | |
| 60 # include "thread_windows.inline.hpp" | |
| 61 #endif | |
| 3960 | 62 #ifdef TARGET_OS_FAMILY_bsd |
| 63 # include "thread_bsd.inline.hpp" | |
| 64 #endif | |
| 0 | 65 |
| 3938 | 66 #define INJECTED_FIELD_COMPUTE_OFFSET(klass, name, signature, may_be_java) \ |
| 67 klass::_##name##_offset = JavaClasses::compute_injected_offset(JavaClasses::klass##_##name##_enum); | |
| 68 | |
| 69 #define DECLARE_INJECTED_FIELD(klass, name, signature, may_be_java) \ | |
| 70 { SystemDictionary::WK_KLASS_ENUM_NAME(klass), vmSymbols::VM_SYMBOL_ENUM_NAME(name##_name), vmSymbols::VM_SYMBOL_ENUM_NAME(signature), may_be_java }, | |
| 71 | |
| 72 InjectedField JavaClasses::_injected_fields[] = { | |
| 73 ALL_INJECTED_FIELDS(DECLARE_INJECTED_FIELD) | |
| 74 }; | |
| 75 | |
| 76 int JavaClasses::compute_injected_offset(InjectedFieldID id) { | |
| 77 return _injected_fields[id].compute_offset(); | |
| 78 } | |
| 79 | |
| 80 | |
| 81 InjectedField* JavaClasses::get_injected(Symbol* class_name, int* field_count) { | |
| 82 *field_count = 0; | |
| 83 | |
| 84 vmSymbols::SID sid = vmSymbols::find_sid(class_name); | |
| 85 if (sid == vmSymbols::NO_SID) { | |
| 86 // Only well known classes can inject fields | |
| 87 return NULL; | |
| 88 } | |
| 89 | |
| 90 int count = 0; | |
| 91 int start = -1; | |
| 92 | |
| 93 #define LOOKUP_INJECTED_FIELD(klass, name, signature, may_be_java) \ | |
| 94 if (sid == vmSymbols::VM_SYMBOL_ENUM_NAME(klass)) { \ | |
| 95 count++; \ | |
| 96 if (start == -1) start = klass##_##name##_enum; \ | |
| 97 } | |
| 98 ALL_INJECTED_FIELDS(LOOKUP_INJECTED_FIELD); | |
| 99 #undef LOOKUP_INJECTED_FIELD | |
| 100 | |
| 101 if (start != -1) { | |
| 102 *field_count = count; | |
| 103 return _injected_fields + start; | |
| 104 } | |
| 105 return NULL; | |
| 106 } | |
| 107 | |
| 108 | |
| 710 | 109 static bool find_field(instanceKlass* ik, |
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110 Symbol* name_symbol, Symbol* signature_symbol, |
| 710 | 111 fieldDescriptor* fd, |
| 112 bool allow_super = false) { | |
| 113 if (allow_super) | |
| 114 return ik->find_field(name_symbol, signature_symbol, fd) != NULL; | |
| 115 else | |
| 116 return ik->find_local_field(name_symbol, signature_symbol, fd); | |
| 117 } | |
| 118 | |
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119 // Helpful routine for computing field offsets at run time rather than hardcoding them |
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120 static void |
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121 compute_offset(int &dest_offset, |
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122 klassOop klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
| 710 | 123 bool allow_super = false) { |
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124 fieldDescriptor fd; |
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125 instanceKlass* ik = instanceKlass::cast(klass_oop); |
| 710 | 126 if (!find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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127 ResourceMark rm; |
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128 tty->print_cr("Invalid layout of %s at %s", ik->external_name(), name_symbol->as_C_string()); |
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129 fatal("Invalid layout of preloaded class"); |
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130 } |
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131 dest_offset = fd.offset(); |
| 0 | 132 } |
| 133 | |
| 134 // Same as above but for "optional" offsets that might not be present in certain JDK versions | |
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135 static void |
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136 compute_optional_offset(int& dest_offset, |
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137 klassOop klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
| 710 | 138 bool allow_super = false) { |
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139 fieldDescriptor fd; |
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140 instanceKlass* ik = instanceKlass::cast(klass_oop); |
| 710 | 141 if (find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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142 dest_offset = fd.offset(); |
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143 } |
| 0 | 144 } |
| 145 | |
| 710 | 146 |
| 6057 | 147 int java_lang_String::value_offset = 0; |
| 148 int java_lang_String::offset_offset = 0; | |
| 149 int java_lang_String::count_offset = 0; | |
| 150 int java_lang_String::hash_offset = 0; | |
| 151 | |
| 152 bool java_lang_String::initialized = false; | |
| 153 | |
| 154 void java_lang_String::compute_offsets() { | |
| 155 assert(!initialized, "offsets should be initialized only once"); | |
| 156 | |
| 157 klassOop k = SystemDictionary::String_klass(); | |
| 158 compute_offset(value_offset, k, vmSymbols::value_name(), vmSymbols::char_array_signature()); | |
| 159 compute_optional_offset(offset_offset, k, vmSymbols::offset_name(), vmSymbols::int_signature()); | |
| 160 compute_optional_offset(count_offset, k, vmSymbols::count_name(), vmSymbols::int_signature()); | |
| 161 compute_optional_offset(hash_offset, k, vmSymbols::hash_name(), vmSymbols::int_signature()); | |
| 162 | |
| 163 initialized = true; | |
| 164 } | |
| 165 | |
| 0 | 166 Handle java_lang_String::basic_create(int length, bool tenured, TRAPS) { |
| 6057 | 167 assert(initialized, "Must be initialized"); |
| 0 | 168 // Create the String object first, so there's a chance that the String |
| 169 // and the char array it points to end up in the same cache line. | |
| 170 oop obj; | |
| 171 if (tenured) { | |
| 1142 | 172 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_permanent_instance(CHECK_NH); |
| 0 | 173 } else { |
| 1142 | 174 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_instance(CHECK_NH); |
| 0 | 175 } |
| 176 | |
| 177 // Create the char array. The String object must be handlized here | |
| 178 // because GC can happen as a result of the allocation attempt. | |
| 179 Handle h_obj(THREAD, obj); | |
| 180 typeArrayOop buffer; | |
| 181 if (tenured) { | |
| 182 buffer = oopFactory::new_permanent_charArray(length, CHECK_NH); | |
| 183 } else { | |
| 184 buffer = oopFactory::new_charArray(length, CHECK_NH); | |
| 185 } | |
| 186 | |
| 187 // Point the String at the char array | |
| 188 obj = h_obj(); | |
| 189 set_value(obj, buffer); | |
| 190 // No need to zero the offset, allocation zero'ed the entire String object | |
| 191 assert(offset(obj) == 0, "initial String offset should be zero"); | |
| 192 //set_offset(obj, 0); | |
| 193 set_count(obj, length); | |
| 194 | |
| 195 return h_obj; | |
| 196 } | |
| 197 | |
| 198 Handle java_lang_String::basic_create_from_unicode(jchar* unicode, int length, bool tenured, TRAPS) { | |
| 199 Handle h_obj = basic_create(length, tenured, CHECK_NH); | |
| 200 typeArrayOop buffer = value(h_obj()); | |
| 201 for (int index = 0; index < length; index++) { | |
| 202 buffer->char_at_put(index, unicode[index]); | |
| 203 } | |
| 204 return h_obj; | |
| 205 } | |
| 206 | |
| 207 Handle java_lang_String::create_from_unicode(jchar* unicode, int length, TRAPS) { | |
| 208 return basic_create_from_unicode(unicode, length, false, CHECK_NH); | |
| 209 } | |
| 210 | |
| 211 Handle java_lang_String::create_tenured_from_unicode(jchar* unicode, int length, TRAPS) { | |
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212 return basic_create_from_unicode(unicode, length, JavaObjectsInPerm, CHECK_NH); |
| 0 | 213 } |
| 214 | |
| 215 oop java_lang_String::create_oop_from_unicode(jchar* unicode, int length, TRAPS) { | |
| 216 Handle h_obj = basic_create_from_unicode(unicode, length, false, CHECK_0); | |
| 217 return h_obj(); | |
| 218 } | |
| 219 | |
| 220 Handle java_lang_String::create_from_str(const char* utf8_str, TRAPS) { | |
| 221 if (utf8_str == NULL) { | |
| 222 return Handle(); | |
| 223 } | |
| 224 int length = UTF8::unicode_length(utf8_str); | |
| 225 Handle h_obj = basic_create(length, false, CHECK_NH); | |
| 226 if (length > 0) { | |
| 227 UTF8::convert_to_unicode(utf8_str, value(h_obj())->char_at_addr(0), length); | |
| 228 } | |
| 229 return h_obj; | |
| 230 } | |
| 231 | |
| 232 oop java_lang_String::create_oop_from_str(const char* utf8_str, TRAPS) { | |
| 233 Handle h_obj = create_from_str(utf8_str, CHECK_0); | |
| 234 return h_obj(); | |
| 235 } | |
| 236 | |
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237 Handle java_lang_String::create_from_symbol(Symbol* symbol, TRAPS) { |
| 0 | 238 int length = UTF8::unicode_length((char*)symbol->bytes(), symbol->utf8_length()); |
| 239 Handle h_obj = basic_create(length, false, CHECK_NH); | |
| 240 if (length > 0) { | |
| 241 UTF8::convert_to_unicode((char*)symbol->bytes(), value(h_obj())->char_at_addr(0), length); | |
| 242 } | |
| 243 return h_obj; | |
| 244 } | |
| 245 | |
| 246 // Converts a C string to a Java String based on current encoding | |
| 247 Handle java_lang_String::create_from_platform_dependent_str(const char* str, TRAPS) { | |
| 248 assert(str != NULL, "bad arguments"); | |
| 249 | |
| 250 typedef jstring (*to_java_string_fn_t)(JNIEnv*, const char *); | |
| 251 static to_java_string_fn_t _to_java_string_fn = NULL; | |
| 252 | |
| 253 if (_to_java_string_fn == NULL) { | |
| 254 void *lib_handle = os::native_java_library(); | |
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255 _to_java_string_fn = CAST_TO_FN_PTR(to_java_string_fn_t, os::dll_lookup(lib_handle, "NewStringPlatform")); |
| 0 | 256 if (_to_java_string_fn == NULL) { |
| 257 fatal("NewStringPlatform missing"); | |
| 258 } | |
| 259 } | |
| 260 | |
| 261 jstring js = NULL; | |
| 262 { JavaThread* thread = (JavaThread*)THREAD; | |
| 263 assert(thread->is_Java_thread(), "must be java thread"); | |
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264 HandleMark hm(thread); |
| 0 | 265 ThreadToNativeFromVM ttn(thread); |
| 266 js = (_to_java_string_fn)(thread->jni_environment(), str); | |
| 267 } | |
| 268 return Handle(THREAD, JNIHandles::resolve(js)); | |
| 269 } | |
| 270 | |
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271 // Converts a Java String to a native C string that can be used for |
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272 // native OS calls. |
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273 char* java_lang_String::as_platform_dependent_str(Handle java_string, TRAPS) { |
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274 |
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275 typedef char* (*to_platform_string_fn_t)(JNIEnv*, jstring, bool*); |
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276 static to_platform_string_fn_t _to_platform_string_fn = NULL; |
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277 |
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278 if (_to_platform_string_fn == NULL) { |
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279 void *lib_handle = os::native_java_library(); |
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280 _to_platform_string_fn = CAST_TO_FN_PTR(to_platform_string_fn_t, os::dll_lookup(lib_handle, "GetStringPlatformChars")); |
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281 if (_to_platform_string_fn == NULL) { |
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282 fatal("GetStringPlatformChars missing"); |
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283 } |
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284 } |
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285 |
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286 char *native_platform_string; |
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287 { JavaThread* thread = (JavaThread*)THREAD; |
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288 assert(thread->is_Java_thread(), "must be java thread"); |
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289 JNIEnv *env = thread->jni_environment(); |
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290 jstring js = (jstring) JNIHandles::make_local(env, java_string()); |
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291 bool is_copy; |
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292 HandleMark hm(thread); |
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293 ThreadToNativeFromVM ttn(thread); |
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294 native_platform_string = (_to_platform_string_fn)(env, js, &is_copy); |
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295 assert(is_copy == JNI_TRUE, "is_copy value changed"); |
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296 JNIHandles::destroy_local(js); |
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297 } |
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298 return native_platform_string; |
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299 } |
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300 |
| 0 | 301 Handle java_lang_String::char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS) { |
| 302 oop obj = java_string(); | |
| 303 // Typical usage is to convert all '/' to '.' in string. | |
| 304 typeArrayOop value = java_lang_String::value(obj); | |
| 305 int offset = java_lang_String::offset(obj); | |
| 306 int length = java_lang_String::length(obj); | |
| 307 | |
| 308 // First check if any from_char exist | |
| 309 int index; // Declared outside, used later | |
| 310 for (index = 0; index < length; index++) { | |
| 311 if (value->char_at(index + offset) == from_char) { | |
| 312 break; | |
| 313 } | |
| 314 } | |
| 315 if (index == length) { | |
| 316 // No from_char, so do not copy. | |
| 317 return java_string; | |
| 318 } | |
| 319 | |
| 320 // Create new UNICODE buffer. Must handlize value because GC | |
| 321 // may happen during String and char array creation. | |
| 322 typeArrayHandle h_value(THREAD, value); | |
| 323 Handle string = basic_create(length, false, CHECK_NH); | |
| 324 | |
| 325 typeArrayOop from_buffer = h_value(); | |
| 326 typeArrayOop to_buffer = java_lang_String::value(string()); | |
| 327 | |
| 328 // Copy contents | |
| 329 for (index = 0; index < length; index++) { | |
| 330 jchar c = from_buffer->char_at(index + offset); | |
| 331 if (c == from_char) { | |
| 332 c = to_char; | |
| 333 } | |
| 334 to_buffer->char_at_put(index, c); | |
| 335 } | |
| 336 return string; | |
| 337 } | |
| 338 | |
| 339 jchar* java_lang_String::as_unicode_string(oop java_string, int& length) { | |
| 340 typeArrayOop value = java_lang_String::value(java_string); | |
| 341 int offset = java_lang_String::offset(java_string); | |
| 342 length = java_lang_String::length(java_string); | |
| 343 | |
| 344 jchar* result = NEW_RESOURCE_ARRAY(jchar, length); | |
| 345 for (int index = 0; index < length; index++) { | |
| 346 result[index] = value->char_at(index + offset); | |
| 347 } | |
| 348 return result; | |
| 349 } | |
| 350 | |
| 6162 | 351 unsigned int java_lang_String::to_hash(oop java_string) { |
| 352 int length = java_lang_String::length(java_string); | |
| 353 // Zero length string will hash to zero with String.toHash() function. | |
| 354 if (length == 0) return 0; | |
| 355 | |
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356 typeArrayOop value = java_lang_String::value(java_string); |
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357 int offset = java_lang_String::offset(java_string); |
| 6162 | 358 return java_lang_String::to_hash(value->char_at_addr(offset), length); |
| 359 } | |
| 360 | |
| 361 unsigned int java_lang_String::hash_string(oop java_string) { | |
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362 int length = java_lang_String::length(java_string); |
| 6162 | 363 // Zero length string doesn't hash necessarily hash to zero. |
| 364 if (length == 0) { | |
| 365 return StringTable::hash_string(NULL, 0); | |
| 366 } | |
| 367 | |
| 368 typeArrayOop value = java_lang_String::value(java_string); | |
| 369 int offset = java_lang_String::offset(java_string); | |
| 370 return StringTable::hash_string(value->char_at_addr(offset), length); | |
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371 } |
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372 |
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373 Symbol* java_lang_String::as_symbol(Handle java_string, TRAPS) { |
| 0 | 374 oop obj = java_string(); |
| 375 typeArrayOop value = java_lang_String::value(obj); | |
| 376 int offset = java_lang_String::offset(obj); | |
| 377 int length = java_lang_String::length(obj); | |
|
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378 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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379 Symbol* sym = SymbolTable::lookup_unicode(base, length, THREAD); |
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380 return sym; |
| 0 | 381 } |
| 382 | |
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383 Symbol* java_lang_String::as_symbol_or_null(oop java_string) { |
|
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384 typeArrayOop value = java_lang_String::value(java_string); |
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385 int offset = java_lang_String::offset(java_string); |
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386 int length = java_lang_String::length(java_string); |
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387 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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388 return SymbolTable::probe_unicode(base, length); |
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389 } |
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390 |
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391 |
| 0 | 392 int java_lang_String::utf8_length(oop java_string) { |
| 393 typeArrayOop value = java_lang_String::value(java_string); | |
| 394 int offset = java_lang_String::offset(java_string); | |
| 395 int length = java_lang_String::length(java_string); | |
| 396 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
| 397 return UNICODE::utf8_length(position, length); | |
| 398 } | |
| 399 | |
| 400 char* java_lang_String::as_utf8_string(oop java_string) { | |
| 401 typeArrayOop value = java_lang_String::value(java_string); | |
| 402 int offset = java_lang_String::offset(java_string); | |
| 403 int length = java_lang_String::length(java_string); | |
| 404 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
| 405 return UNICODE::as_utf8(position, length); | |
| 406 } | |
| 407 | |
|
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408 char* java_lang_String::as_utf8_string(oop java_string, char* buf, int buflen) { |
|
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409 typeArrayOop value = java_lang_String::value(java_string); |
|
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410 int offset = java_lang_String::offset(java_string); |
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411 int length = java_lang_String::length(java_string); |
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412 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); |
|
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413 return UNICODE::as_utf8(position, length, buf, buflen); |
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414 } |
|
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415 |
| 0 | 416 char* java_lang_String::as_utf8_string(oop java_string, int start, int len) { |
| 417 typeArrayOop value = java_lang_String::value(java_string); | |
| 418 int offset = java_lang_String::offset(java_string); | |
| 419 int length = java_lang_String::length(java_string); | |
| 420 assert(start + len <= length, "just checking"); | |
| 421 jchar* position = value->char_at_addr(offset + start); | |
| 422 return UNICODE::as_utf8(position, len); | |
| 423 } | |
| 424 | |
| 425 bool java_lang_String::equals(oop java_string, jchar* chars, int len) { | |
| 426 assert(SharedSkipVerify || | |
| 1142 | 427 java_string->klass() == SystemDictionary::String_klass(), |
| 0 | 428 "must be java_string"); |
| 429 typeArrayOop value = java_lang_String::value(java_string); | |
| 430 int offset = java_lang_String::offset(java_string); | |
| 431 int length = java_lang_String::length(java_string); | |
| 432 if (length != len) { | |
| 433 return false; | |
| 434 } | |
| 435 for (int i = 0; i < len; i++) { | |
| 436 if (value->char_at(i + offset) != chars[i]) { | |
| 437 return false; | |
| 438 } | |
| 439 } | |
| 440 return true; | |
| 441 } | |
| 442 | |
| 443 void java_lang_String::print(Handle java_string, outputStream* st) { | |
| 444 oop obj = java_string(); | |
| 1142 | 445 assert(obj->klass() == SystemDictionary::String_klass(), "must be java_string"); |
| 0 | 446 typeArrayOop value = java_lang_String::value(obj); |
| 447 int offset = java_lang_String::offset(obj); | |
| 448 int length = java_lang_String::length(obj); | |
| 449 | |
| 450 int end = MIN2(length, 100); | |
| 451 if (value == NULL) { | |
| 452 // This can happen if, e.g., printing a String | |
| 453 // object before its initializer has been called | |
| 454 st->print_cr("NULL"); | |
| 455 } else { | |
| 456 st->print("\""); | |
| 457 for (int index = 0; index < length; index++) { | |
| 458 st->print("%c", value->char_at(index + offset)); | |
| 459 } | |
| 460 st->print("\""); | |
| 461 } | |
| 462 } | |
| 463 | |
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464 static void initialize_static_field(fieldDescriptor* fd, TRAPS) { |
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465 Handle mirror (THREAD, fd->field_holder()->java_mirror()); |
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466 assert(mirror.not_null() && fd->is_static(), "just checking"); |
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467 if (fd->has_initial_value()) { |
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468 BasicType t = fd->field_type(); |
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469 switch (t) { |
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470 case T_BYTE: |
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471 mirror()->byte_field_put(fd->offset(), fd->int_initial_value()); |
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472 break; |
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473 case T_BOOLEAN: |
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474 mirror()->bool_field_put(fd->offset(), fd->int_initial_value()); |
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475 break; |
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476 case T_CHAR: |
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477 mirror()->char_field_put(fd->offset(), fd->int_initial_value()); |
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478 break; |
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479 case T_SHORT: |
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480 mirror()->short_field_put(fd->offset(), fd->int_initial_value()); |
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481 break; |
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482 case T_INT: |
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483 mirror()->int_field_put(fd->offset(), fd->int_initial_value()); |
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484 break; |
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485 case T_FLOAT: |
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486 mirror()->float_field_put(fd->offset(), fd->float_initial_value()); |
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487 break; |
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488 case T_DOUBLE: |
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489 mirror()->double_field_put(fd->offset(), fd->double_initial_value()); |
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490 break; |
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491 case T_LONG: |
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492 mirror()->long_field_put(fd->offset(), fd->long_initial_value()); |
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493 break; |
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494 case T_OBJECT: |
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495 { |
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496 #ifdef ASSERT |
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497 TempNewSymbol sym = SymbolTable::new_symbol("Ljava/lang/String;", CHECK); |
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498 assert(fd->signature() == sym, "just checking"); |
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499 #endif |
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500 oop string = fd->string_initial_value(CHECK); |
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501 mirror()->obj_field_put(fd->offset(), string); |
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502 } |
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503 break; |
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504 default: |
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505 THROW_MSG(vmSymbols::java_lang_ClassFormatError(), |
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506 "Illegal ConstantValue attribute in class file"); |
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507 } |
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508 } |
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509 } |
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510 |
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511 |
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512 void java_lang_Class::fixup_mirror(KlassHandle k, TRAPS) { |
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513 assert(instanceMirrorKlass::offset_of_static_fields() != 0, "must have been computed already"); |
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514 |
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515 if (k->oop_is_instance()) { |
| 3938 | 516 // During bootstrap, java.lang.Class wasn't loaded so static field |
| 517 // offsets were computed without the size added it. Go back and | |
| 518 // update all the static field offsets to included the size. | |
| 519 for (JavaFieldStream fs(instanceKlass::cast(k())); !fs.done(); fs.next()) { | |
| 520 if (fs.access_flags().is_static()) { | |
| 521 int real_offset = fs.offset() + instanceMirrorKlass::offset_of_static_fields(); | |
| 522 fs.set_offset(real_offset); | |
| 523 } | |
| 524 } | |
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525 } |
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526 create_mirror(k, CHECK); |
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527 } |
| 0 | 528 |
| 529 oop java_lang_Class::create_mirror(KlassHandle k, TRAPS) { | |
| 530 assert(k->java_mirror() == NULL, "should only assign mirror once"); | |
| 531 // Use this moment of initialization to cache modifier_flags also, | |
| 532 // to support Class.getModifiers(). Instance classes recalculate | |
| 533 // the cached flags after the class file is parsed, but before the | |
| 534 // class is put into the system dictionary. | |
| 535 int computed_modifiers = k->compute_modifier_flags(CHECK_0); | |
| 536 k->set_modifier_flags(computed_modifiers); | |
|
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537 if (SystemDictionary::Class_klass_loaded() && (k->oop_is_instance() || k->oop_is_javaArray())) { |
| 0 | 538 // Allocate mirror (java.lang.Class instance) |
|
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539 Handle mirror = instanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(k, CHECK_0); |
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540 |
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541 instanceMirrorKlass* mk = instanceMirrorKlass::cast(mirror->klass()); |
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542 java_lang_Class::set_static_oop_field_count(mirror(), mk->compute_static_oop_field_count(mirror())); |
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543 |
| 0 | 544 // It might also have a component mirror. This mirror must already exist. |
| 545 if (k->oop_is_javaArray()) { | |
| 546 Handle comp_mirror; | |
| 547 if (k->oop_is_typeArray()) { | |
| 548 BasicType type = typeArrayKlass::cast(k->as_klassOop())->element_type(); | |
| 549 comp_mirror = Universe::java_mirror(type); | |
| 550 assert(comp_mirror.not_null(), "must have primitive mirror"); | |
| 551 } else if (k->oop_is_objArray()) { | |
| 552 klassOop element_klass = objArrayKlass::cast(k->as_klassOop())->element_klass(); | |
| 553 if (element_klass != NULL | |
| 554 && (Klass::cast(element_klass)->oop_is_instance() || | |
| 555 Klass::cast(element_klass)->oop_is_javaArray())) { | |
| 556 comp_mirror = Klass::cast(element_klass)->java_mirror(); | |
| 557 assert(comp_mirror.not_null(), "must have element mirror"); | |
| 558 } | |
| 559 // else some object array internal to the VM, like systemObjArrayKlassObj | |
| 560 } | |
| 561 if (comp_mirror.not_null()) { | |
| 562 // Two-way link between the array klass and its component mirror: | |
| 563 arrayKlass::cast(k->as_klassOop())->set_component_mirror(comp_mirror()); | |
| 564 set_array_klass(comp_mirror(), k->as_klassOop()); | |
| 565 } | |
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566 } else if (k->oop_is_instance()) { |
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567 // Initialize static fields |
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568 instanceKlass::cast(k())->do_local_static_fields(&initialize_static_field, CHECK_NULL); |
| 0 | 569 } |
| 570 return mirror(); | |
| 571 } else { | |
| 572 return NULL; | |
| 573 } | |
| 574 } | |
| 575 | |
| 576 | |
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577 |
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578 int java_lang_Class::oop_size(oop java_class) { |
| 3938 | 579 assert(_oop_size_offset != 0, "must be set"); |
| 580 return java_class->int_field(_oop_size_offset); | |
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581 } |
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582 void java_lang_Class::set_oop_size(oop java_class, int size) { |
| 3938 | 583 assert(_oop_size_offset != 0, "must be set"); |
| 584 java_class->int_field_put(_oop_size_offset, size); | |
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585 } |
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586 int java_lang_Class::static_oop_field_count(oop java_class) { |
| 3938 | 587 assert(_static_oop_field_count_offset != 0, "must be set"); |
| 588 return java_class->int_field(_static_oop_field_count_offset); | |
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589 } |
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590 void java_lang_Class::set_static_oop_field_count(oop java_class, int size) { |
| 3938 | 591 assert(_static_oop_field_count_offset != 0, "must be set"); |
| 592 java_class->int_field_put(_static_oop_field_count_offset, size); | |
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593 } |
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594 |
| 0 | 595 oop java_lang_Class::create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS) { |
| 596 // This should be improved by adding a field at the Java level or by | |
| 597 // introducing a new VM klass (see comment in ClassFileParser) | |
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598 oop java_class = instanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance((oop)NULL, CHECK_0); |
| 0 | 599 if (type != T_VOID) { |
| 600 klassOop aklass = Universe::typeArrayKlassObj(type); | |
| 601 assert(aklass != NULL, "correct bootstrap"); | |
| 602 set_array_klass(java_class, aklass); | |
| 603 } | |
| 4009 | 604 #ifdef ASSERT |
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605 instanceMirrorKlass* mk = instanceMirrorKlass::cast(SystemDictionary::Class_klass()); |
| 4009 | 606 assert(java_lang_Class::static_oop_field_count(java_class) == 0, "should have been zeroed by allocation"); |
| 607 #endif | |
| 0 | 608 return java_class; |
| 609 } | |
| 610 | |
| 611 | |
| 612 klassOop java_lang_Class::as_klassOop(oop java_class) { | |
| 613 //%note memory_2 | |
|
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614 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
| 3938 | 615 klassOop k = klassOop(java_class->obj_field(_klass_offset)); |
| 0 | 616 assert(k == NULL || k->is_klass(), "type check"); |
| 617 return k; | |
| 618 } | |
| 619 | |
| 620 | |
| 4009 | 621 void java_lang_Class::set_klass(oop java_class, klassOop klass) { |
| 622 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); | |
| 623 java_class->obj_field_put(_klass_offset, klass); | |
| 624 } | |
| 625 | |
| 626 | |
|
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627 void java_lang_Class::print_signature(oop java_class, outputStream* st) { |
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628 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
|
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629 Symbol* name = NULL; |
|
665
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630 bool is_instance = false; |
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631 if (is_primitive(java_class)) { |
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632 name = vmSymbols::type_signature(primitive_type(java_class)); |
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633 } else { |
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634 klassOop k = as_klassOop(java_class); |
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635 is_instance = Klass::cast(k)->oop_is_instance(); |
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636 name = Klass::cast(k)->name(); |
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637 } |
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638 if (name == NULL) { |
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639 st->print("<null>"); |
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640 return; |
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641 } |
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642 if (is_instance) st->print("L"); |
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643 st->write((char*) name->base(), (int) name->utf8_length()); |
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644 if (is_instance) st->print(";"); |
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645 } |
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646 |
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647 Symbol* java_lang_Class::as_signature(oop java_class, bool intern_if_not_found, TRAPS) { |
|
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648 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
|
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649 Symbol* name; |
|
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650 if (is_primitive(java_class)) { |
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651 name = vmSymbols::type_signature(primitive_type(java_class)); |
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652 // Because this can create a new symbol, the caller has to decrement |
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653 // the refcount, so make adjustment here and below for symbols returned |
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654 // that are not created or incremented due to a successful lookup. |
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655 name->increment_refcount(); |
|
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656 } else { |
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657 klassOop k = as_klassOop(java_class); |
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658 if (!Klass::cast(k)->oop_is_instance()) { |
|
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659 name = Klass::cast(k)->name(); |
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660 name->increment_refcount(); |
|
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661 } else { |
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662 ResourceMark rm; |
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663 const char* sigstr = Klass::cast(k)->signature_name(); |
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664 int siglen = (int) strlen(sigstr); |
|
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665 if (!intern_if_not_found) { |
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666 name = SymbolTable::probe(sigstr, siglen); |
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667 } else { |
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668 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
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669 } |
|
665
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670 } |
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671 } |
|
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672 return name; |
|
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673 } |
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674 |
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675 |
| 0 | 676 klassOop java_lang_Class::array_klass(oop java_class) { |
| 3938 | 677 klassOop k = klassOop(java_class->obj_field(_array_klass_offset)); |
| 0 | 678 assert(k == NULL || k->is_klass() && Klass::cast(k)->oop_is_javaArray(), "should be array klass"); |
| 679 return k; | |
| 680 } | |
| 681 | |
| 682 | |
| 683 void java_lang_Class::set_array_klass(oop java_class, klassOop klass) { | |
| 684 assert(klass->is_klass() && Klass::cast(klass)->oop_is_javaArray(), "should be array klass"); | |
| 3938 | 685 java_class->obj_field_put(_array_klass_offset, klass); |
| 0 | 686 } |
| 687 | |
| 688 | |
| 689 methodOop java_lang_Class::resolved_constructor(oop java_class) { | |
| 3938 | 690 oop constructor = java_class->obj_field(_resolved_constructor_offset); |
| 0 | 691 assert(constructor == NULL || constructor->is_method(), "should be method"); |
| 692 return methodOop(constructor); | |
| 693 } | |
| 694 | |
| 695 | |
| 696 void java_lang_Class::set_resolved_constructor(oop java_class, methodOop constructor) { | |
| 697 assert(constructor->is_method(), "should be method"); | |
| 3938 | 698 java_class->obj_field_put(_resolved_constructor_offset, constructor); |
| 0 | 699 } |
| 700 | |
| 701 | |
| 702 bool java_lang_Class::is_primitive(oop java_class) { | |
|
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703 // should assert: |
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704 //assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
| 3938 | 705 klassOop k = klassOop(java_class->obj_field(_klass_offset)); |
| 0 | 706 return k == NULL; |
| 707 } | |
| 708 | |
| 709 | |
| 710 BasicType java_lang_Class::primitive_type(oop java_class) { | |
| 711 assert(java_lang_Class::is_primitive(java_class), "just checking"); | |
| 3938 | 712 klassOop ak = klassOop(java_class->obj_field(_array_klass_offset)); |
| 0 | 713 BasicType type = T_VOID; |
| 714 if (ak != NULL) { | |
| 715 // Note: create_basic_type_mirror above initializes ak to a non-null value. | |
| 716 type = arrayKlass::cast(ak)->element_type(); | |
| 717 } else { | |
| 718 assert(java_class == Universe::void_mirror(), "only valid non-array primitive"); | |
| 719 } | |
| 720 assert(Universe::java_mirror(type) == java_class, "must be consistent"); | |
| 721 return type; | |
| 722 } | |
| 723 | |
|
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724 BasicType java_lang_Class::as_BasicType(oop java_class, klassOop* reference_klass) { |
|
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725 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
|
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726 if (is_primitive(java_class)) { |
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727 if (reference_klass != NULL) |
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728 (*reference_klass) = NULL; |
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729 return primitive_type(java_class); |
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730 } else { |
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731 if (reference_klass != NULL) |
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732 (*reference_klass) = as_klassOop(java_class); |
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733 return T_OBJECT; |
|
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734 } |
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|
735 } |
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736 |
| 0 | 737 |
| 738 oop java_lang_Class::primitive_mirror(BasicType t) { | |
| 739 oop mirror = Universe::java_mirror(t); | |
| 1142 | 740 assert(mirror != NULL && mirror->is_a(SystemDictionary::Class_klass()), "must be a Class"); |
| 0 | 741 assert(java_lang_Class::is_primitive(mirror), "must be primitive"); |
| 742 return mirror; | |
| 743 } | |
| 744 | |
| 745 bool java_lang_Class::offsets_computed = false; | |
| 746 int java_lang_Class::classRedefinedCount_offset = -1; | |
| 747 | |
| 748 void java_lang_Class::compute_offsets() { | |
| 749 assert(!offsets_computed, "offsets should be initialized only once"); | |
| 750 offsets_computed = true; | |
| 751 | |
| 3938 | 752 klassOop klass_oop = SystemDictionary::Class_klass(); |
| 0 | 753 // The classRedefinedCount field is only present starting in 1.5, |
| 754 // so don't go fatal. | |
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755 compute_optional_offset(classRedefinedCount_offset, |
| 3938 | 756 klass_oop, vmSymbols::classRedefinedCount_name(), vmSymbols::int_signature()); |
| 757 | |
| 758 CLASS_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
| 0 | 759 } |
| 760 | |
| 761 int java_lang_Class::classRedefinedCount(oop the_class_mirror) { | |
| 762 if (!JDK_Version::is_gte_jdk15x_version() | |
| 763 || classRedefinedCount_offset == -1) { | |
| 764 // The classRedefinedCount field is only present starting in 1.5. | |
| 765 // If we don't have an offset for it then just return -1 as a marker. | |
| 766 return -1; | |
| 767 } | |
| 768 | |
| 769 return the_class_mirror->int_field(classRedefinedCount_offset); | |
| 770 } | |
| 771 | |
| 772 void java_lang_Class::set_classRedefinedCount(oop the_class_mirror, int value) { | |
| 773 if (!JDK_Version::is_gte_jdk15x_version() | |
| 774 || classRedefinedCount_offset == -1) { | |
| 775 // The classRedefinedCount field is only present starting in 1.5. | |
| 776 // If we don't have an offset for it then nothing to set. | |
| 777 return; | |
| 778 } | |
| 779 | |
| 780 the_class_mirror->int_field_put(classRedefinedCount_offset, value); | |
| 781 } | |
| 782 | |
| 783 | |
| 784 // Note: JDK1.1 and before had a privateInfo_offset field which was used for the | |
| 785 // platform thread structure, and a eetop offset which was used for thread | |
| 786 // local storage (and unused by the HotSpot VM). In JDK1.2 the two structures | |
| 787 // merged, so in the HotSpot VM we just use the eetop field for the thread | |
| 788 // instead of the privateInfo_offset. | |
| 789 // | |
| 790 // Note: The stackSize field is only present starting in 1.4. | |
| 791 | |
| 792 int java_lang_Thread::_name_offset = 0; | |
| 793 int java_lang_Thread::_group_offset = 0; | |
| 794 int java_lang_Thread::_contextClassLoader_offset = 0; | |
| 795 int java_lang_Thread::_inheritedAccessControlContext_offset = 0; | |
| 796 int java_lang_Thread::_priority_offset = 0; | |
| 797 int java_lang_Thread::_eetop_offset = 0; | |
| 798 int java_lang_Thread::_daemon_offset = 0; | |
| 799 int java_lang_Thread::_stillborn_offset = 0; | |
| 800 int java_lang_Thread::_stackSize_offset = 0; | |
| 801 int java_lang_Thread::_tid_offset = 0; | |
| 802 int java_lang_Thread::_thread_status_offset = 0; | |
| 803 int java_lang_Thread::_park_blocker_offset = 0; | |
| 804 int java_lang_Thread::_park_event_offset = 0 ; | |
| 805 | |
| 806 | |
| 807 void java_lang_Thread::compute_offsets() { | |
| 808 assert(_group_offset == 0, "offsets should be initialized only once"); | |
| 809 | |
| 1142 | 810 klassOop k = SystemDictionary::Thread_klass(); |
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811 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::char_array_signature()); |
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812 compute_offset(_group_offset, k, vmSymbols::group_name(), vmSymbols::threadgroup_signature()); |
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813 compute_offset(_contextClassLoader_offset, k, vmSymbols::contextClassLoader_name(), vmSymbols::classloader_signature()); |
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814 compute_offset(_inheritedAccessControlContext_offset, k, vmSymbols::inheritedAccessControlContext_name(), vmSymbols::accesscontrolcontext_signature()); |
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815 compute_offset(_priority_offset, k, vmSymbols::priority_name(), vmSymbols::int_signature()); |
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816 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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817 compute_offset(_eetop_offset, k, vmSymbols::eetop_name(), vmSymbols::long_signature()); |
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818 compute_offset(_stillborn_offset, k, vmSymbols::stillborn_name(), vmSymbols::bool_signature()); |
| 0 | 819 // The stackSize field is only present starting in 1.4, so don't go fatal. |
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820 compute_optional_offset(_stackSize_offset, k, vmSymbols::stackSize_name(), vmSymbols::long_signature()); |
| 0 | 821 // The tid and thread_status fields are only present starting in 1.5, so don't go fatal. |
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822 compute_optional_offset(_tid_offset, k, vmSymbols::thread_id_name(), vmSymbols::long_signature()); |
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823 compute_optional_offset(_thread_status_offset, k, vmSymbols::thread_status_name(), vmSymbols::int_signature()); |
| 0 | 824 // The parkBlocker field is only present starting in 1.6, so don't go fatal. |
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825 compute_optional_offset(_park_blocker_offset, k, vmSymbols::park_blocker_name(), vmSymbols::object_signature()); |
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826 compute_optional_offset(_park_event_offset, k, vmSymbols::park_event_name(), |
| 0 | 827 vmSymbols::long_signature()); |
| 828 } | |
| 829 | |
| 830 | |
| 831 JavaThread* java_lang_Thread::thread(oop java_thread) { | |
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832 return (JavaThread*)java_thread->address_field(_eetop_offset); |
| 0 | 833 } |
| 834 | |
| 835 | |
| 836 void java_lang_Thread::set_thread(oop java_thread, JavaThread* thread) { | |
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837 java_thread->address_field_put(_eetop_offset, (address)thread); |
| 0 | 838 } |
| 839 | |
| 840 | |
| 841 typeArrayOop java_lang_Thread::name(oop java_thread) { | |
| 842 oop name = java_thread->obj_field(_name_offset); | |
| 843 assert(name == NULL || (name->is_typeArray() && typeArrayKlass::cast(name->klass())->element_type() == T_CHAR), "just checking"); | |
| 844 return typeArrayOop(name); | |
| 845 } | |
| 846 | |
| 847 | |
| 848 void java_lang_Thread::set_name(oop java_thread, typeArrayOop name) { | |
| 849 assert(java_thread->obj_field(_name_offset) == NULL, "name should be NULL"); | |
| 850 java_thread->obj_field_put(_name_offset, name); | |
| 851 } | |
| 852 | |
| 853 | |
| 854 ThreadPriority java_lang_Thread::priority(oop java_thread) { | |
| 855 return (ThreadPriority)java_thread->int_field(_priority_offset); | |
| 856 } | |
| 857 | |
| 858 | |
| 859 void java_lang_Thread::set_priority(oop java_thread, ThreadPriority priority) { | |
| 860 java_thread->int_field_put(_priority_offset, priority); | |
| 861 } | |
| 862 | |
| 863 | |
| 864 oop java_lang_Thread::threadGroup(oop java_thread) { | |
| 865 return java_thread->obj_field(_group_offset); | |
| 866 } | |
| 867 | |
| 868 | |
| 869 bool java_lang_Thread::is_stillborn(oop java_thread) { | |
| 870 return java_thread->bool_field(_stillborn_offset) != 0; | |
| 871 } | |
| 872 | |
| 873 | |
| 874 // We never have reason to turn the stillborn bit off | |
| 875 void java_lang_Thread::set_stillborn(oop java_thread) { | |
| 876 java_thread->bool_field_put(_stillborn_offset, true); | |
| 877 } | |
| 878 | |
| 879 | |
| 880 bool java_lang_Thread::is_alive(oop java_thread) { | |
| 881 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
| 882 return (thr != NULL); | |
| 883 } | |
| 884 | |
| 885 | |
| 886 bool java_lang_Thread::is_daemon(oop java_thread) { | |
| 887 return java_thread->bool_field(_daemon_offset) != 0; | |
| 888 } | |
| 889 | |
| 890 | |
| 891 void java_lang_Thread::set_daemon(oop java_thread) { | |
| 892 java_thread->bool_field_put(_daemon_offset, true); | |
| 893 } | |
| 894 | |
| 895 oop java_lang_Thread::context_class_loader(oop java_thread) { | |
| 896 return java_thread->obj_field(_contextClassLoader_offset); | |
| 897 } | |
| 898 | |
| 899 oop java_lang_Thread::inherited_access_control_context(oop java_thread) { | |
| 900 return java_thread->obj_field(_inheritedAccessControlContext_offset); | |
| 901 } | |
| 902 | |
| 903 | |
| 904 jlong java_lang_Thread::stackSize(oop java_thread) { | |
| 905 // The stackSize field is only present starting in 1.4 | |
| 906 if (_stackSize_offset > 0) { | |
| 907 assert(JDK_Version::is_gte_jdk14x_version(), "sanity check"); | |
| 908 return java_thread->long_field(_stackSize_offset); | |
| 909 } else { | |
| 910 return 0; | |
| 911 } | |
| 912 } | |
| 913 | |
| 914 // Write the thread status value to threadStatus field in java.lang.Thread java class. | |
| 915 void java_lang_Thread::set_thread_status(oop java_thread, | |
| 916 java_lang_Thread::ThreadStatus status) { | |
| 917 assert(JavaThread::current()->thread_state() == _thread_in_vm, "Java Thread is not running in vm"); | |
| 918 // The threadStatus is only present starting in 1.5 | |
| 919 if (_thread_status_offset > 0) { | |
| 920 java_thread->int_field_put(_thread_status_offset, status); | |
| 921 } | |
| 922 } | |
| 923 | |
| 924 // Read thread status value from threadStatus field in java.lang.Thread java class. | |
| 925 java_lang_Thread::ThreadStatus java_lang_Thread::get_thread_status(oop java_thread) { | |
| 926 assert(Thread::current()->is_VM_thread() || | |
| 927 JavaThread::current()->thread_state() == _thread_in_vm, | |
| 928 "Java Thread is not running in vm"); | |
| 929 // The threadStatus is only present starting in 1.5 | |
| 930 if (_thread_status_offset > 0) { | |
| 931 return (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
| 932 } else { | |
| 933 // All we can easily figure out is if it is alive, but that is | |
| 934 // enough info for a valid unknown status. | |
| 935 // These aren't restricted to valid set ThreadStatus values, so | |
| 936 // use JVMTI values and cast. | |
| 937 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
| 938 if (thr == NULL) { | |
| 939 // the thread hasn't run yet or is in the process of exiting | |
| 940 return NEW; | |
| 941 } | |
| 942 return (java_lang_Thread::ThreadStatus)JVMTI_THREAD_STATE_ALIVE; | |
| 943 } | |
| 944 } | |
| 945 | |
| 946 | |
| 947 jlong java_lang_Thread::thread_id(oop java_thread) { | |
| 948 // The thread ID field is only present starting in 1.5 | |
| 949 if (_tid_offset > 0) { | |
| 950 return java_thread->long_field(_tid_offset); | |
| 951 } else { | |
| 952 return 0; | |
| 953 } | |
| 954 } | |
| 955 | |
| 956 oop java_lang_Thread::park_blocker(oop java_thread) { | |
| 242 | 957 assert(JDK_Version::current().supports_thread_park_blocker() && |
| 958 _park_blocker_offset != 0, "Must support parkBlocker field"); | |
| 0 | 959 |
| 960 if (_park_blocker_offset > 0) { | |
| 961 return java_thread->obj_field(_park_blocker_offset); | |
| 962 } | |
| 963 | |
| 964 return NULL; | |
| 965 } | |
| 966 | |
| 967 jlong java_lang_Thread::park_event(oop java_thread) { | |
| 968 if (_park_event_offset > 0) { | |
| 969 return java_thread->long_field(_park_event_offset); | |
| 970 } | |
| 971 return 0; | |
| 972 } | |
| 973 | |
| 974 bool java_lang_Thread::set_park_event(oop java_thread, jlong ptr) { | |
| 975 if (_park_event_offset > 0) { | |
| 976 java_thread->long_field_put(_park_event_offset, ptr); | |
| 977 return true; | |
| 978 } | |
| 979 return false; | |
| 980 } | |
| 981 | |
| 982 | |
| 983 const char* java_lang_Thread::thread_status_name(oop java_thread) { | |
| 984 assert(JDK_Version::is_gte_jdk15x_version() && _thread_status_offset != 0, "Must have thread status"); | |
| 985 ThreadStatus status = (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
| 986 switch (status) { | |
| 987 case NEW : return "NEW"; | |
| 988 case RUNNABLE : return "RUNNABLE"; | |
| 989 case SLEEPING : return "TIMED_WAITING (sleeping)"; | |
| 990 case IN_OBJECT_WAIT : return "WAITING (on object monitor)"; | |
| 991 case IN_OBJECT_WAIT_TIMED : return "TIMED_WAITING (on object monitor)"; | |
| 992 case PARKED : return "WAITING (parking)"; | |
| 993 case PARKED_TIMED : return "TIMED_WAITING (parking)"; | |
| 994 case BLOCKED_ON_MONITOR_ENTER : return "BLOCKED (on object monitor)"; | |
| 995 case TERMINATED : return "TERMINATED"; | |
| 996 default : return "UNKNOWN"; | |
| 997 }; | |
| 998 } | |
| 999 int java_lang_ThreadGroup::_parent_offset = 0; | |
| 1000 int java_lang_ThreadGroup::_name_offset = 0; | |
| 1001 int java_lang_ThreadGroup::_threads_offset = 0; | |
| 1002 int java_lang_ThreadGroup::_groups_offset = 0; | |
| 1003 int java_lang_ThreadGroup::_maxPriority_offset = 0; | |
| 1004 int java_lang_ThreadGroup::_destroyed_offset = 0; | |
| 1005 int java_lang_ThreadGroup::_daemon_offset = 0; | |
| 1006 int java_lang_ThreadGroup::_vmAllowSuspension_offset = 0; | |
| 1007 int java_lang_ThreadGroup::_nthreads_offset = 0; | |
| 1008 int java_lang_ThreadGroup::_ngroups_offset = 0; | |
| 1009 | |
| 1010 oop java_lang_ThreadGroup::parent(oop java_thread_group) { | |
| 1011 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1012 return java_thread_group->obj_field(_parent_offset); | |
| 1013 } | |
| 1014 | |
| 1015 // ("name as oop" accessor is not necessary) | |
| 1016 | |
| 1017 typeArrayOop java_lang_ThreadGroup::name(oop java_thread_group) { | |
| 1018 oop name = java_thread_group->obj_field(_name_offset); | |
| 1019 // ThreadGroup.name can be null | |
| 1020 return name == NULL ? (typeArrayOop)NULL : java_lang_String::value(name); | |
| 1021 } | |
| 1022 | |
| 1023 int java_lang_ThreadGroup::nthreads(oop java_thread_group) { | |
| 1024 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1025 return java_thread_group->int_field(_nthreads_offset); | |
| 1026 } | |
| 1027 | |
| 1028 objArrayOop java_lang_ThreadGroup::threads(oop java_thread_group) { | |
| 1029 oop threads = java_thread_group->obj_field(_threads_offset); | |
| 1030 assert(threads != NULL, "threadgroups should have threads"); | |
| 1031 assert(threads->is_objArray(), "just checking"); // Todo: Add better type checking code | |
| 1032 return objArrayOop(threads); | |
| 1033 } | |
| 1034 | |
| 1035 int java_lang_ThreadGroup::ngroups(oop java_thread_group) { | |
| 1036 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1037 return java_thread_group->int_field(_ngroups_offset); | |
| 1038 } | |
| 1039 | |
| 1040 objArrayOop java_lang_ThreadGroup::groups(oop java_thread_group) { | |
| 1041 oop groups = java_thread_group->obj_field(_groups_offset); | |
| 1042 assert(groups == NULL || groups->is_objArray(), "just checking"); // Todo: Add better type checking code | |
| 1043 return objArrayOop(groups); | |
| 1044 } | |
| 1045 | |
| 1046 ThreadPriority java_lang_ThreadGroup::maxPriority(oop java_thread_group) { | |
| 1047 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1048 return (ThreadPriority) java_thread_group->int_field(_maxPriority_offset); | |
| 1049 } | |
| 1050 | |
| 1051 bool java_lang_ThreadGroup::is_destroyed(oop java_thread_group) { | |
| 1052 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1053 return java_thread_group->bool_field(_destroyed_offset) != 0; | |
| 1054 } | |
| 1055 | |
| 1056 bool java_lang_ThreadGroup::is_daemon(oop java_thread_group) { | |
| 1057 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1058 return java_thread_group->bool_field(_daemon_offset) != 0; | |
| 1059 } | |
| 1060 | |
| 1061 bool java_lang_ThreadGroup::is_vmAllowSuspension(oop java_thread_group) { | |
| 1062 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1063 return java_thread_group->bool_field(_vmAllowSuspension_offset) != 0; | |
| 1064 } | |
| 1065 | |
| 1066 void java_lang_ThreadGroup::compute_offsets() { | |
| 1067 assert(_parent_offset == 0, "offsets should be initialized only once"); | |
| 1068 | |
| 1142 | 1069 klassOop k = SystemDictionary::ThreadGroup_klass(); |
| 0 | 1070 |
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1071 compute_offset(_parent_offset, k, vmSymbols::parent_name(), vmSymbols::threadgroup_signature()); |
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1072 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1073 compute_offset(_threads_offset, k, vmSymbols::threads_name(), vmSymbols::thread_array_signature()); |
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1074 compute_offset(_groups_offset, k, vmSymbols::groups_name(), vmSymbols::threadgroup_array_signature()); |
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1075 compute_offset(_maxPriority_offset, k, vmSymbols::maxPriority_name(), vmSymbols::int_signature()); |
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1076 compute_offset(_destroyed_offset, k, vmSymbols::destroyed_name(), vmSymbols::bool_signature()); |
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1077 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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1078 compute_offset(_vmAllowSuspension_offset, k, vmSymbols::vmAllowSuspension_name(), vmSymbols::bool_signature()); |
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1079 compute_offset(_nthreads_offset, k, vmSymbols::nthreads_name(), vmSymbols::int_signature()); |
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1080 compute_offset(_ngroups_offset, k, vmSymbols::ngroups_name(), vmSymbols::int_signature()); |
| 0 | 1081 } |
| 1082 | |
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1083 oop java_lang_Throwable::unassigned_stacktrace() { |
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1084 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Throwable_klass()); |
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1085 address addr = ik->static_field_addr(static_unassigned_stacktrace_offset); |
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1086 if (UseCompressedOops) { |
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1087 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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1088 } else { |
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1089 return oopDesc::load_decode_heap_oop((oop*)addr); |
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1090 } |
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1091 } |
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|
1092 |
| 0 | 1093 oop java_lang_Throwable::backtrace(oop throwable) { |
| 1094 return throwable->obj_field_acquire(backtrace_offset); | |
| 1095 } | |
| 1096 | |
| 1097 | |
| 1098 void java_lang_Throwable::set_backtrace(oop throwable, oop value) { | |
| 1099 throwable->release_obj_field_put(backtrace_offset, value); | |
| 1100 } | |
| 1101 | |
| 1102 | |
| 1103 oop java_lang_Throwable::message(oop throwable) { | |
| 1104 return throwable->obj_field(detailMessage_offset); | |
| 1105 } | |
| 1106 | |
| 1107 | |
| 1108 oop java_lang_Throwable::message(Handle throwable) { | |
| 1109 return throwable->obj_field(detailMessage_offset); | |
| 1110 } | |
| 1111 | |
| 1112 | |
| 1113 void java_lang_Throwable::set_message(oop throwable, oop value) { | |
| 1114 throwable->obj_field_put(detailMessage_offset, value); | |
| 1115 } | |
| 1116 | |
| 1117 | |
|
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1118 void java_lang_Throwable::set_stacktrace(oop throwable, oop st_element_array) { |
|
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1119 throwable->obj_field_put(stackTrace_offset, st_element_array); |
|
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|
1120 } |
|
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|
1121 |
| 0 | 1122 void java_lang_Throwable::clear_stacktrace(oop throwable) { |
| 1123 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
|
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|
1124 set_stacktrace(throwable, NULL); |
| 0 | 1125 } |
| 1126 | |
| 1127 | |
| 1128 void java_lang_Throwable::print(oop throwable, outputStream* st) { | |
| 1129 ResourceMark rm; | |
| 1130 klassOop k = throwable->klass(); | |
| 1131 assert(k != NULL, "just checking"); | |
| 1132 st->print("%s", instanceKlass::cast(k)->external_name()); | |
| 1133 oop msg = message(throwable); | |
| 1134 if (msg != NULL) { | |
| 1135 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
| 1136 } | |
| 1137 } | |
| 1138 | |
| 1139 | |
| 1140 void java_lang_Throwable::print(Handle throwable, outputStream* st) { | |
| 1141 ResourceMark rm; | |
| 1142 klassOop k = throwable->klass(); | |
| 1143 assert(k != NULL, "just checking"); | |
| 1144 st->print("%s", instanceKlass::cast(k)->external_name()); | |
| 1145 oop msg = message(throwable); | |
| 1146 if (msg != NULL) { | |
| 1147 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
| 1148 } | |
| 1149 } | |
| 1150 | |
| 1151 // Print stack trace element to resource allocated buffer | |
| 1152 char* java_lang_Throwable::print_stack_element_to_buffer(methodOop method, int bci) { | |
| 1153 // Get strings and string lengths | |
| 1154 instanceKlass* klass = instanceKlass::cast(method->method_holder()); | |
| 1155 const char* klass_name = klass->external_name(); | |
| 1156 int buf_len = (int)strlen(klass_name); | |
| 1157 char* source_file_name; | |
| 1158 if (klass->source_file_name() == NULL) { | |
| 1159 source_file_name = NULL; | |
| 1160 } else { | |
| 1161 source_file_name = klass->source_file_name()->as_C_string(); | |
| 1162 buf_len += (int)strlen(source_file_name); | |
| 1163 } | |
| 1164 char* method_name = method->name()->as_C_string(); | |
| 1165 buf_len += (int)strlen(method_name); | |
| 1166 | |
| 1167 // Allocate temporary buffer with extra space for formatting and line number | |
| 1168 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64); | |
| 1169 | |
| 1170 // Print stack trace line in buffer | |
| 1171 sprintf(buf, "\tat %s.%s", klass_name, method_name); | |
| 1172 if (method->is_native()) { | |
| 1173 strcat(buf, "(Native Method)"); | |
| 1174 } else { | |
| 1175 int line_number = method->line_number_from_bci(bci); | |
| 1176 if (source_file_name != NULL && (line_number != -1)) { | |
| 1177 // Sourcename and linenumber | |
| 1178 sprintf(buf + (int)strlen(buf), "(%s:%d)", source_file_name, line_number); | |
| 1179 } else if (source_file_name != NULL) { | |
| 1180 // Just sourcename | |
| 1181 sprintf(buf + (int)strlen(buf), "(%s)", source_file_name); | |
| 1182 } else { | |
| 1183 // Neither soucename and linenumber | |
| 1184 sprintf(buf + (int)strlen(buf), "(Unknown Source)"); | |
| 1185 } | |
| 1186 nmethod* nm = method->code(); | |
| 1187 if (WizardMode && nm != NULL) { | |
| 3960 | 1188 sprintf(buf + (int)strlen(buf), "(nmethod " INTPTR_FORMAT ")", (intptr_t)nm); |
| 0 | 1189 } |
| 1190 } | |
| 1191 | |
| 1192 return buf; | |
| 1193 } | |
| 1194 | |
| 1195 | |
| 1196 void java_lang_Throwable::print_stack_element(Handle stream, methodOop method, int bci) { | |
| 1197 ResourceMark rm; | |
| 1198 char* buf = print_stack_element_to_buffer(method, bci); | |
| 1199 print_to_stream(stream, buf); | |
| 1200 } | |
| 1201 | |
| 1202 void java_lang_Throwable::print_stack_element(outputStream *st, methodOop method, int bci) { | |
| 1203 ResourceMark rm; | |
| 1204 char* buf = print_stack_element_to_buffer(method, bci); | |
| 1205 st->print_cr("%s", buf); | |
| 1206 } | |
| 1207 | |
| 1208 void java_lang_Throwable::print_to_stream(Handle stream, const char* str) { | |
| 1209 if (stream.is_null()) { | |
| 1210 tty->print_cr("%s", str); | |
| 1211 } else { | |
| 1212 EXCEPTION_MARK; | |
| 1213 JavaValue result(T_VOID); | |
| 1214 Handle arg (THREAD, oopFactory::new_charArray(str, THREAD)); | |
| 1215 if (!HAS_PENDING_EXCEPTION) { | |
| 1216 JavaCalls::call_virtual(&result, | |
| 1217 stream, | |
| 1218 KlassHandle(THREAD, stream->klass()), | |
|
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|
1219 vmSymbols::println_name(), |
|
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1220 vmSymbols::char_array_void_signature(), |
| 0 | 1221 arg, |
| 1222 THREAD); | |
| 1223 } | |
| 1224 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
| 1225 if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION; | |
| 1226 } | |
| 1227 | |
| 1228 } | |
| 1229 | |
| 1230 | |
| 1231 const char* java_lang_Throwable::no_stack_trace_message() { | |
| 1232 return "\t<<no stack trace available>>"; | |
| 1233 } | |
| 1234 | |
| 1235 | |
| 1236 // Currently used only for exceptions occurring during startup | |
| 1237 void java_lang_Throwable::print_stack_trace(oop throwable, outputStream* st) { | |
| 1238 Thread *THREAD = Thread::current(); | |
| 1239 Handle h_throwable(THREAD, throwable); | |
| 1240 while (h_throwable.not_null()) { | |
| 1241 objArrayHandle result (THREAD, objArrayOop(backtrace(h_throwable()))); | |
| 1242 if (result.is_null()) { | |
| 1243 st->print_cr(no_stack_trace_message()); | |
| 1244 return; | |
| 1245 } | |
| 1246 | |
| 1247 while (result.not_null()) { | |
| 1248 objArrayHandle methods (THREAD, | |
| 1249 objArrayOop(result->obj_at(trace_methods_offset))); | |
| 1250 typeArrayHandle bcis (THREAD, | |
| 1251 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
| 1252 | |
| 1253 if (methods.is_null() || bcis.is_null()) { | |
| 1254 st->print_cr(no_stack_trace_message()); | |
| 1255 return; | |
| 1256 } | |
| 1257 | |
| 1258 int length = methods()->length(); | |
| 1259 for (int index = 0; index < length; index++) { | |
| 1260 methodOop method = methodOop(methods()->obj_at(index)); | |
| 1261 if (method == NULL) goto handle_cause; | |
| 1262 int bci = bcis->ushort_at(index); | |
| 1263 print_stack_element(st, method, bci); | |
| 1264 } | |
| 1265 result = objArrayHandle(THREAD, objArrayOop(result->obj_at(trace_next_offset))); | |
| 1266 } | |
| 1267 handle_cause: | |
| 1268 { | |
| 1269 EXCEPTION_MARK; | |
| 1270 JavaValue result(T_OBJECT); | |
| 1271 JavaCalls::call_virtual(&result, | |
| 1272 h_throwable, | |
| 1273 KlassHandle(THREAD, h_throwable->klass()), | |
|
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|
1274 vmSymbols::getCause_name(), |
|
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|
1275 vmSymbols::void_throwable_signature(), |
| 0 | 1276 THREAD); |
| 1277 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
| 1278 if (HAS_PENDING_EXCEPTION) { | |
| 1279 CLEAR_PENDING_EXCEPTION; | |
| 1280 h_throwable = Handle(); | |
| 1281 } else { | |
| 1282 h_throwable = Handle(THREAD, (oop) result.get_jobject()); | |
| 1283 if (h_throwable.not_null()) { | |
| 1284 st->print("Caused by: "); | |
| 1285 print(h_throwable, st); | |
| 1286 st->cr(); | |
| 1287 } | |
| 1288 } | |
| 1289 } | |
| 1290 } | |
| 1291 } | |
| 1292 | |
| 1293 | |
| 1294 void java_lang_Throwable::print_stack_trace(oop throwable, oop print_stream) { | |
| 1295 // Note: this is no longer used in Merlin, but we support it for compatibility. | |
| 1296 Thread *thread = Thread::current(); | |
| 1297 Handle stream(thread, print_stream); | |
| 1298 objArrayHandle result (thread, objArrayOop(backtrace(throwable))); | |
| 1299 if (result.is_null()) { | |
| 1300 print_to_stream(stream, no_stack_trace_message()); | |
| 1301 return; | |
| 1302 } | |
| 1303 | |
| 1304 while (result.not_null()) { | |
| 1305 objArrayHandle methods (thread, | |
| 1306 objArrayOop(result->obj_at(trace_methods_offset))); | |
| 1307 typeArrayHandle bcis (thread, | |
| 1308 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
| 1309 | |
| 1310 if (methods.is_null() || bcis.is_null()) { | |
| 1311 print_to_stream(stream, no_stack_trace_message()); | |
| 1312 return; | |
| 1313 } | |
| 1314 | |
| 1315 int length = methods()->length(); | |
| 1316 for (int index = 0; index < length; index++) { | |
| 1317 methodOop method = methodOop(methods()->obj_at(index)); | |
| 1318 if (method == NULL) return; | |
| 1319 int bci = bcis->ushort_at(index); | |
| 1320 print_stack_element(stream, method, bci); | |
| 1321 } | |
| 1322 result = objArrayHandle(thread, objArrayOop(result->obj_at(trace_next_offset))); | |
| 1323 } | |
| 1324 } | |
| 1325 | |
| 1326 // This class provides a simple wrapper over the internal structure of | |
| 1327 // exception backtrace to insulate users of the backtrace from needing | |
| 1328 // to know what it looks like. | |
| 1329 class BacktraceBuilder: public StackObj { | |
| 1330 private: | |
| 1331 Handle _backtrace; | |
| 1332 objArrayOop _head; | |
| 1333 objArrayOop _methods; | |
| 1334 typeArrayOop _bcis; | |
| 1335 int _index; | |
| 1336 No_Safepoint_Verifier _nsv; | |
| 1337 | |
| 1338 public: | |
| 1339 | |
| 1340 enum { | |
| 1341 trace_methods_offset = java_lang_Throwable::trace_methods_offset, | |
| 1342 trace_bcis_offset = java_lang_Throwable::trace_bcis_offset, | |
| 1343 trace_next_offset = java_lang_Throwable::trace_next_offset, | |
| 1344 trace_size = java_lang_Throwable::trace_size, | |
| 1345 trace_chunk_size = java_lang_Throwable::trace_chunk_size | |
| 1346 }; | |
| 1347 | |
| 1348 // constructor for new backtrace | |
|
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1349 BacktraceBuilder(TRAPS): _methods(NULL), _bcis(NULL), _head(NULL) { |
| 0 | 1350 expand(CHECK); |
| 1351 _backtrace = _head; | |
| 1352 _index = 0; | |
| 1353 } | |
| 1354 | |
| 1355 void expand(TRAPS) { | |
| 1356 objArrayHandle old_head(THREAD, _head); | |
| 1357 Pause_No_Safepoint_Verifier pnsv(&_nsv); | |
| 1358 | |
| 1359 objArrayOop head = oopFactory::new_objectArray(trace_size, CHECK); | |
| 1360 objArrayHandle new_head(THREAD, head); | |
| 1361 | |
| 1362 objArrayOop methods = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
| 1363 objArrayHandle new_methods(THREAD, methods); | |
| 1364 | |
| 1365 typeArrayOop bcis = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
| 1366 typeArrayHandle new_bcis(THREAD, bcis); | |
| 1367 | |
| 1368 if (!old_head.is_null()) { | |
| 1369 old_head->obj_at_put(trace_next_offset, new_head()); | |
| 1370 } | |
| 1371 new_head->obj_at_put(trace_methods_offset, new_methods()); | |
| 1372 new_head->obj_at_put(trace_bcis_offset, new_bcis()); | |
| 1373 | |
| 1374 _head = new_head(); | |
| 1375 _methods = new_methods(); | |
| 1376 _bcis = new_bcis(); | |
| 1377 _index = 0; | |
| 1378 } | |
| 1379 | |
| 1380 oop backtrace() { | |
| 1381 return _backtrace(); | |
| 1382 } | |
| 1383 | |
|
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1384 inline void push(methodOop method, int bci, TRAPS) { |
|
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1385 // Smear the -1 bci to 0 since the array only holds unsigned |
|
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1386 // shorts. The later line number lookup would just smear the -1 |
|
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1387 // to a 0 even if it could be recorded. |
|
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1388 if (bci == SynchronizationEntryBCI) bci = 0; |
|
a81f60ddab06
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1389 assert(bci == (jushort)bci, "doesn't fit"); |
|
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|
1390 |
| 0 | 1391 if (_index >= trace_chunk_size) { |
| 1392 methodHandle mhandle(THREAD, method); | |
| 1393 expand(CHECK); | |
| 1394 method = mhandle(); | |
| 1395 } | |
| 1396 | |
|
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1397 _methods->obj_at_put(_index, method); |
| 0 | 1398 _bcis->ushort_at_put(_index, bci); |
| 1399 _index++; | |
| 1400 } | |
| 1401 | |
| 1402 methodOop current_method() { | |
| 1403 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
| 1404 return methodOop(_methods->obj_at(_index)); | |
| 1405 } | |
| 1406 | |
| 1407 jushort current_bci() { | |
| 1408 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
| 1409 return _bcis->ushort_at(_index); | |
| 1410 } | |
| 1411 }; | |
| 1412 | |
| 1413 | |
|
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1414 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method, TRAPS) { |
| 0 | 1415 if (!StackTraceInThrowable) return; |
| 1416 ResourceMark rm(THREAD); | |
| 1417 | |
| 1418 // Start out by clearing the backtrace for this object, in case the VM | |
| 1419 // runs out of memory while allocating the stack trace | |
| 1420 set_backtrace(throwable(), NULL); | |
| 1421 if (JDK_Version::is_gte_jdk14x_version()) { | |
| 1422 // New since 1.4, clear lazily constructed Java level stacktrace if | |
| 1423 // refilling occurs | |
|
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1424 // This is unnecessary in 1.7+ but harmless |
| 0 | 1425 clear_stacktrace(throwable()); |
| 1426 } | |
| 1427 | |
| 1428 int max_depth = MaxJavaStackTraceDepth; | |
| 1429 JavaThread* thread = (JavaThread*)THREAD; | |
| 1430 BacktraceBuilder bt(CHECK); | |
| 1431 | |
|
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1432 // If there is no Java frame just return the method that was being called |
|
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1433 // with bci 0 |
|
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1434 if (!thread->has_last_Java_frame()) { |
|
01147d8aac1d
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1435 if (max_depth >= 1 && method() != NULL) { |
|
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1436 bt.push(method(), 0, CHECK); |
|
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1437 set_backtrace(throwable(), bt.backtrace()); |
|
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1438 } |
|
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1439 return; |
|
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|
1440 } |
|
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|
1441 |
| 0 | 1442 // Instead of using vframe directly, this version of fill_in_stack_trace |
| 1443 // basically handles everything by hand. This significantly improved the | |
| 1444 // speed of this method call up to 28.5% on Solaris sparc. 27.1% on Windows. | |
| 1445 // See bug 6333838 for more details. | |
| 1446 // The "ASSERT" here is to verify this method generates the exactly same stack | |
| 1447 // trace as utilizing vframe. | |
| 1448 #ifdef ASSERT | |
| 1449 vframeStream st(thread); | |
| 1450 methodHandle st_method(THREAD, st.method()); | |
| 1451 #endif | |
| 1452 int total_count = 0; | |
| 1453 RegisterMap map(thread, false); | |
| 1454 int decode_offset = 0; | |
| 1455 nmethod* nm = NULL; | |
| 1456 bool skip_fillInStackTrace_check = false; | |
| 1457 bool skip_throwableInit_check = false; | |
| 1458 | |
| 1459 for (frame fr = thread->last_frame(); max_depth != total_count;) { | |
| 1460 methodOop method = NULL; | |
| 1461 int bci = 0; | |
| 1462 | |
| 1463 // Compiled java method case. | |
| 1464 if (decode_offset != 0) { | |
| 1465 DebugInfoReadStream stream(nm, decode_offset); | |
| 1466 decode_offset = stream.read_int(); | |
| 1467 method = (methodOop)nm->oop_at(stream.read_int()); | |
|
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1468 bci = stream.read_bci(); |
| 0 | 1469 } else { |
| 1470 if (fr.is_first_frame()) break; | |
| 1471 address pc = fr.pc(); | |
| 1472 if (fr.is_interpreted_frame()) { | |
| 1473 intptr_t bcx = fr.interpreter_frame_bcx(); | |
| 1474 method = fr.interpreter_frame_method(); | |
| 1475 bci = fr.is_bci(bcx) ? bcx : method->bci_from((address)bcx); | |
| 1476 fr = fr.sender(&map); | |
| 1477 } else { | |
| 1478 CodeBlob* cb = fr.cb(); | |
| 1479 // HMMM QQQ might be nice to have frame return nm as NULL if cb is non-NULL | |
| 1480 // but non nmethod | |
| 1481 fr = fr.sender(&map); | |
| 1482 if (cb == NULL || !cb->is_nmethod()) { | |
| 1483 continue; | |
| 1484 } | |
| 1485 nm = (nmethod*)cb; | |
| 1486 if (nm->method()->is_native()) { | |
| 1487 method = nm->method(); | |
| 1488 bci = 0; | |
| 1489 } else { | |
| 1490 PcDesc* pd = nm->pc_desc_at(pc); | |
| 1491 decode_offset = pd->scope_decode_offset(); | |
| 1492 // if decode_offset is not equal to 0, it will execute the | |
| 1493 // "compiled java method case" at the beginning of the loop. | |
| 1494 continue; | |
| 1495 } | |
| 1496 } | |
| 1497 } | |
| 1498 #ifdef ASSERT | |
|
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1499 assert(st_method() == method && st.bci() == bci, |
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1500 "Wrong stack trace"); |
|
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1501 st.next(); |
|
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1502 // vframeStream::method isn't GC-safe so store off a copy |
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1503 // of the methodOop in case we GC. |
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1504 if (!st.at_end()) { |
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1505 st_method = st.method(); |
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1506 } |
| 0 | 1507 #endif |
|
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1508 |
|
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1509 // the format of the stacktrace will be: |
|
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1510 // - 1 or more fillInStackTrace frames for the exception class (skipped) |
|
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1511 // - 0 or more <init> methods for the exception class (skipped) |
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1512 // - rest of the stack |
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1513 |
| 0 | 1514 if (!skip_fillInStackTrace_check) { |
|
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1515 if ((method->name() == vmSymbols::fillInStackTrace_name() || |
|
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1516 method->name() == vmSymbols::fillInStackTrace0_name()) && |
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1517 throwable->is_a(method->method_holder())) { |
| 0 | 1518 continue; |
| 1519 } | |
|
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1520 else { |
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1521 skip_fillInStackTrace_check = true; // gone past them all |
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1522 } |
| 0 | 1523 } |
| 1524 if (!skip_throwableInit_check) { | |
|
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1525 assert(skip_fillInStackTrace_check, "logic error in backtrace filtering"); |
|
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1526 |
|
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1527 // skip <init> methods of the exception class and superclasses |
|
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1528 // This is simlar to classic VM. |
| 0 | 1529 if (method->name() == vmSymbols::object_initializer_name() && |
| 1530 throwable->is_a(method->method_holder())) { | |
| 1531 continue; | |
| 1532 } else { | |
|
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1533 // there are none or we've seen them all - either way stop checking |
| 0 | 1534 skip_throwableInit_check = true; |
| 1535 } | |
| 1536 } | |
| 1537 bt.push(method, bci, CHECK); | |
| 1538 total_count++; | |
| 1539 } | |
| 1540 | |
| 1541 // Put completed stack trace into throwable object | |
| 1542 set_backtrace(throwable(), bt.backtrace()); | |
| 1543 } | |
| 1544 | |
|
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1545 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method) { |
| 0 | 1546 // No-op if stack trace is disabled |
| 1547 if (!StackTraceInThrowable) { | |
| 1548 return; | |
| 1549 } | |
| 1550 | |
| 1551 // Disable stack traces for some preallocated out of memory errors | |
| 1552 if (!Universe::should_fill_in_stack_trace(throwable)) { | |
| 1553 return; | |
| 1554 } | |
| 1555 | |
| 1556 PRESERVE_EXCEPTION_MARK; | |
| 1557 | |
| 1558 JavaThread* thread = JavaThread::active(); | |
|
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1559 fill_in_stack_trace(throwable, method, thread); |
| 0 | 1560 // ignore exceptions thrown during stack trace filling |
| 1561 CLEAR_PENDING_EXCEPTION; | |
| 1562 } | |
| 1563 | |
| 1564 void java_lang_Throwable::allocate_backtrace(Handle throwable, TRAPS) { | |
| 1565 // Allocate stack trace - backtrace is created but not filled in | |
| 1566 | |
| 1567 // No-op if stack trace is disabled | |
| 1568 if (!StackTraceInThrowable) return; | |
| 1569 | |
| 1570 objArrayOop h_oop = oopFactory::new_objectArray(trace_size, CHECK); | |
| 1571 objArrayHandle backtrace (THREAD, h_oop); | |
| 1572 objArrayOop m_oop = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
| 1573 objArrayHandle methods (THREAD, m_oop); | |
| 1574 typeArrayOop b = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
| 1575 typeArrayHandle bcis(THREAD, b); | |
| 1576 | |
| 1577 // backtrace has space for one chunk (next is NULL) | |
| 1578 backtrace->obj_at_put(trace_methods_offset, methods()); | |
| 1579 backtrace->obj_at_put(trace_bcis_offset, bcis()); | |
| 1580 set_backtrace(throwable(), backtrace()); | |
| 1581 } | |
| 1582 | |
| 1583 | |
| 1584 void java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(Handle throwable) { | |
| 1585 // Fill in stack trace into preallocated backtrace (no GC) | |
| 1586 | |
| 1587 // No-op if stack trace is disabled | |
| 1588 if (!StackTraceInThrowable) return; | |
| 1589 | |
| 1142 | 1590 assert(throwable->is_a(SystemDictionary::Throwable_klass()), "sanity check"); |
| 0 | 1591 |
| 1592 oop backtrace = java_lang_Throwable::backtrace(throwable()); | |
| 1593 assert(backtrace != NULL, "backtrace not preallocated"); | |
| 1594 | |
| 1595 oop m = objArrayOop(backtrace)->obj_at(trace_methods_offset); | |
| 1596 objArrayOop methods = objArrayOop(m); | |
| 1597 assert(methods != NULL && methods->length() > 0, "method array not preallocated"); | |
| 1598 | |
| 1599 oop b = objArrayOop(backtrace)->obj_at(trace_bcis_offset); | |
| 1600 typeArrayOop bcis = typeArrayOop(b); | |
| 1601 assert(bcis != NULL, "bci array not preallocated"); | |
| 1602 | |
| 1603 assert(methods->length() == bcis->length(), "method and bci arrays should match"); | |
| 1604 | |
| 1605 JavaThread* thread = JavaThread::current(); | |
| 1606 ResourceMark rm(thread); | |
| 1607 vframeStream st(thread); | |
| 1608 | |
| 1609 // Unlike fill_in_stack_trace we do not skip fillInStackTrace or throwable init | |
| 1610 // methods as preallocated errors aren't created by "java" code. | |
| 1611 | |
| 1612 // fill in as much stack trace as possible | |
| 1613 int max_chunks = MIN2(methods->length(), (int)MaxJavaStackTraceDepth); | |
| 1614 int chunk_count = 0; | |
| 1615 | |
| 1616 for (;!st.at_end(); st.next()) { | |
|
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1617 // Add entry and smear the -1 bci to 0 since the array only holds |
|
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1618 // unsigned shorts. The later line number lookup would just smear |
|
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1619 // the -1 to a 0 even if it could be recorded. |
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1620 int bci = st.bci(); |
|
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1621 if (bci == SynchronizationEntryBCI) bci = 0; |
|
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1622 assert(bci == (jushort)bci, "doesn't fit"); |
|
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|
1623 bcis->ushort_at_put(chunk_count, bci); |
| 0 | 1624 methods->obj_at_put(chunk_count, st.method()); |
| 1625 | |
| 1626 chunk_count++; | |
| 1627 | |
| 1628 // Bail-out for deep stacks | |
| 1629 if (chunk_count >= max_chunks) break; | |
| 1630 } | |
|
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1631 |
|
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1632 // For Java 7+ we support the Throwable immutability protocol defined for Java 7. This support |
|
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1633 // was missing in 7u0 so in 7u0 there is a workaround in the Throwable class. That workaround |
|
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1634 // can be removed in a JDK using this JVM version |
|
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|
1635 if (JDK_Version::is_gte_jdk17x_version()) { |
|
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1636 java_lang_Throwable::set_stacktrace(throwable(), java_lang_Throwable::unassigned_stacktrace()); |
|
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|
1637 assert(java_lang_Throwable::unassigned_stacktrace() != NULL, "not initialized"); |
|
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|
1638 } |
|
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|
1639 |
| 0 | 1640 } |
| 1641 | |
| 1642 | |
| 1643 int java_lang_Throwable::get_stack_trace_depth(oop throwable, TRAPS) { | |
| 1644 if (throwable == NULL) { | |
| 1645 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
| 1646 } | |
| 1647 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
| 1648 int depth = 0; | |
| 1649 if (chunk != NULL) { | |
| 1650 // Iterate over chunks and count full ones | |
| 1651 while (true) { | |
| 1652 objArrayOop next = objArrayOop(chunk->obj_at(trace_next_offset)); | |
| 1653 if (next == NULL) break; | |
| 1654 depth += trace_chunk_size; | |
| 1655 chunk = next; | |
| 1656 } | |
| 1657 assert(chunk != NULL && chunk->obj_at(trace_next_offset) == NULL, "sanity check"); | |
| 1658 // Count element in remaining partial chunk | |
| 1659 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
| 1660 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
| 1661 assert(methods != NULL && bcis != NULL, "sanity check"); | |
| 1662 for (int i = 0; i < methods->length(); i++) { | |
| 1663 if (methods->obj_at(i) == NULL) break; | |
| 1664 depth++; | |
| 1665 } | |
| 1666 } | |
| 1667 return depth; | |
| 1668 } | |
| 1669 | |
| 1670 | |
| 1671 oop java_lang_Throwable::get_stack_trace_element(oop throwable, int index, TRAPS) { | |
| 1672 if (throwable == NULL) { | |
| 1673 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
| 1674 } | |
| 1675 if (index < 0) { | |
| 1676 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1677 } | |
| 1678 // Compute how many chunks to skip and index into actual chunk | |
| 1679 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
| 1680 int skip_chunks = index / trace_chunk_size; | |
| 1681 int chunk_index = index % trace_chunk_size; | |
| 1682 while (chunk != NULL && skip_chunks > 0) { | |
| 1683 chunk = objArrayOop(chunk->obj_at(trace_next_offset)); | |
| 1684 skip_chunks--; | |
| 1685 } | |
| 1686 if (chunk == NULL) { | |
| 1687 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1688 } | |
| 1689 // Get method,bci from chunk | |
| 1690 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
| 1691 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
| 1692 assert(methods != NULL && bcis != NULL, "sanity check"); | |
| 1693 methodHandle method(THREAD, methodOop(methods->obj_at(chunk_index))); | |
| 1694 int bci = bcis->ushort_at(chunk_index); | |
| 1695 // Chunk can be partial full | |
| 1696 if (method.is_null()) { | |
| 1697 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1698 } | |
| 1699 | |
| 1700 oop element = java_lang_StackTraceElement::create(method, bci, CHECK_0); | |
| 1701 return element; | |
| 1702 } | |
| 1703 | |
| 1704 oop java_lang_StackTraceElement::create(methodHandle method, int bci, TRAPS) { | |
| 1705 // SystemDictionary::stackTraceElement_klass() will be null for pre-1.4 JDKs | |
| 1706 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
| 1707 | |
| 1708 // Allocate java.lang.StackTraceElement instance | |
| 1142 | 1709 klassOop k = SystemDictionary::StackTraceElement_klass(); |
|
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1710 assert(k != NULL, "must be loaded in 1.4+"); |
| 0 | 1711 instanceKlassHandle ik (THREAD, k); |
| 1712 if (ik->should_be_initialized()) { | |
| 1713 ik->initialize(CHECK_0); | |
| 1714 } | |
| 1715 | |
| 1716 Handle element = ik->allocate_instance_handle(CHECK_0); | |
| 1717 // Fill in class name | |
| 1718 ResourceMark rm(THREAD); | |
| 1719 const char* str = instanceKlass::cast(method->method_holder())->external_name(); | |
| 1720 oop classname = StringTable::intern((char*) str, CHECK_0); | |
| 1721 java_lang_StackTraceElement::set_declaringClass(element(), classname); | |
| 1722 // Fill in method name | |
| 1723 oop methodname = StringTable::intern(method->name(), CHECK_0); | |
| 1724 java_lang_StackTraceElement::set_methodName(element(), methodname); | |
| 1725 // Fill in source file name | |
|
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|
1726 Symbol* source = instanceKlass::cast(method->method_holder())->source_file_name(); |
| 0 | 1727 oop filename = StringTable::intern(source, CHECK_0); |
| 1728 java_lang_StackTraceElement::set_fileName(element(), filename); | |
| 1729 // File in source line number | |
| 1730 int line_number; | |
| 1731 if (method->is_native()) { | |
| 1732 // Negative value different from -1 below, enabling Java code in | |
| 1733 // class java.lang.StackTraceElement to distinguish "native" from | |
| 1734 // "no LineNumberTable". | |
| 1735 line_number = -2; | |
| 1736 } else { | |
| 1737 // Returns -1 if no LineNumberTable, and otherwise actual line number | |
| 1738 line_number = method->line_number_from_bci(bci); | |
| 1739 } | |
| 1740 java_lang_StackTraceElement::set_lineNumber(element(), line_number); | |
| 1741 | |
| 1742 return element(); | |
| 1743 } | |
| 1744 | |
| 1745 | |
| 1746 void java_lang_reflect_AccessibleObject::compute_offsets() { | |
| 1142 | 1747 klassOop k = SystemDictionary::reflect_AccessibleObject_klass(); |
|
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|
1748 compute_offset(override_offset, k, vmSymbols::override_name(), vmSymbols::bool_signature()); |
| 0 | 1749 } |
| 1750 | |
| 1751 jboolean java_lang_reflect_AccessibleObject::override(oop reflect) { | |
| 1752 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1753 return (jboolean) reflect->bool_field(override_offset); | |
| 1754 } | |
| 1755 | |
| 1756 void java_lang_reflect_AccessibleObject::set_override(oop reflect, jboolean value) { | |
| 1757 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1758 reflect->bool_field_put(override_offset, (int) value); | |
| 1759 } | |
| 1760 | |
| 1761 void java_lang_reflect_Method::compute_offsets() { | |
| 1142 | 1762 klassOop k = SystemDictionary::reflect_Method_klass(); |
|
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|
1763 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
|
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|
1764 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
|
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|
1765 compute_offset(returnType_offset, k, vmSymbols::returnType_name(), vmSymbols::class_signature()); |
|
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|
1766 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
|
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|
1767 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
|
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|
1768 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
|
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|
1769 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 1770 // The generic signature and annotations fields are only present in 1.5 |
| 1771 signature_offset = -1; | |
| 1772 annotations_offset = -1; | |
| 1773 parameter_annotations_offset = -1; | |
| 1774 annotation_default_offset = -1; | |
|
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|
1775 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
|
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|
1776 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
|
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|
1777 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
|
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|
1778 compute_optional_offset(annotation_default_offset, k, vmSymbols::annotation_default_name(), vmSymbols::byte_array_signature()); |
| 0 | 1779 } |
| 1780 | |
| 1781 Handle java_lang_reflect_Method::create(TRAPS) { | |
| 1782 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1142 | 1783 klassOop klass = SystemDictionary::reflect_Method_klass(); |
| 0 | 1784 // This class is eagerly initialized during VM initialization, since we keep a refence |
| 1785 // to one of the methods | |
| 1786 assert(instanceKlass::cast(klass)->is_initialized(), "must be initialized"); | |
| 1787 return instanceKlass::cast(klass)->allocate_instance_handle(CHECK_NH); | |
| 1788 } | |
| 1789 | |
| 1790 oop java_lang_reflect_Method::clazz(oop reflect) { | |
| 1791 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1792 return reflect->obj_field(clazz_offset); | |
| 1793 } | |
| 1794 | |
| 1795 void java_lang_reflect_Method::set_clazz(oop reflect, oop value) { | |
| 1796 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1797 reflect->obj_field_put(clazz_offset, value); | |
| 1798 } | |
| 1799 | |
| 1800 int java_lang_reflect_Method::slot(oop reflect) { | |
| 1801 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1802 return reflect->int_field(slot_offset); | |
| 1803 } | |
| 1804 | |
| 1805 void java_lang_reflect_Method::set_slot(oop reflect, int value) { | |
| 1806 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1807 reflect->int_field_put(slot_offset, value); | |
| 1808 } | |
| 1809 | |
| 1810 oop java_lang_reflect_Method::name(oop method) { | |
| 1811 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1812 return method->obj_field(name_offset); | |
| 1813 } | |
| 1814 | |
| 1815 void java_lang_reflect_Method::set_name(oop method, oop value) { | |
| 1816 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1817 method->obj_field_put(name_offset, value); | |
| 1818 } | |
| 1819 | |
| 1820 oop java_lang_reflect_Method::return_type(oop method) { | |
| 1821 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1822 return method->obj_field(returnType_offset); | |
| 1823 } | |
| 1824 | |
| 1825 void java_lang_reflect_Method::set_return_type(oop method, oop value) { | |
| 1826 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1827 method->obj_field_put(returnType_offset, value); | |
| 1828 } | |
| 1829 | |
| 1830 oop java_lang_reflect_Method::parameter_types(oop method) { | |
| 1831 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1832 return method->obj_field(parameterTypes_offset); | |
| 1833 } | |
| 1834 | |
| 1835 void java_lang_reflect_Method::set_parameter_types(oop method, oop value) { | |
| 1836 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1837 method->obj_field_put(parameterTypes_offset, value); | |
| 1838 } | |
| 1839 | |
| 1840 oop java_lang_reflect_Method::exception_types(oop method) { | |
| 1841 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1842 return method->obj_field(exceptionTypes_offset); | |
| 1843 } | |
| 1844 | |
| 1845 void java_lang_reflect_Method::set_exception_types(oop method, oop value) { | |
| 1846 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1847 method->obj_field_put(exceptionTypes_offset, value); | |
| 1848 } | |
| 1849 | |
| 1850 int java_lang_reflect_Method::modifiers(oop method) { | |
| 1851 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1852 return method->int_field(modifiers_offset); | |
| 1853 } | |
| 1854 | |
| 1855 void java_lang_reflect_Method::set_modifiers(oop method, int value) { | |
| 1856 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1857 method->int_field_put(modifiers_offset, value); | |
| 1858 } | |
| 1859 | |
| 1860 bool java_lang_reflect_Method::has_signature_field() { | |
| 1861 return (signature_offset >= 0); | |
| 1862 } | |
| 1863 | |
| 1864 oop java_lang_reflect_Method::signature(oop method) { | |
| 1865 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1866 assert(has_signature_field(), "signature field must be present"); | |
| 1867 return method->obj_field(signature_offset); | |
| 1868 } | |
| 1869 | |
| 1870 void java_lang_reflect_Method::set_signature(oop method, oop value) { | |
| 1871 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1872 assert(has_signature_field(), "signature field must be present"); | |
| 1873 method->obj_field_put(signature_offset, value); | |
| 1874 } | |
| 1875 | |
| 1876 bool java_lang_reflect_Method::has_annotations_field() { | |
| 1877 return (annotations_offset >= 0); | |
| 1878 } | |
| 1879 | |
| 1880 oop java_lang_reflect_Method::annotations(oop method) { | |
| 1881 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1882 assert(has_annotations_field(), "annotations field must be present"); | |
| 1883 return method->obj_field(annotations_offset); | |
| 1884 } | |
| 1885 | |
| 1886 void java_lang_reflect_Method::set_annotations(oop method, oop value) { | |
| 1887 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1888 assert(has_annotations_field(), "annotations field must be present"); | |
| 1889 method->obj_field_put(annotations_offset, value); | |
| 1890 } | |
| 1891 | |
| 1892 bool java_lang_reflect_Method::has_parameter_annotations_field() { | |
| 1893 return (parameter_annotations_offset >= 0); | |
| 1894 } | |
| 1895 | |
| 1896 oop java_lang_reflect_Method::parameter_annotations(oop method) { | |
| 1897 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1898 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1899 return method->obj_field(parameter_annotations_offset); | |
| 1900 } | |
| 1901 | |
| 1902 void java_lang_reflect_Method::set_parameter_annotations(oop method, oop value) { | |
| 1903 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1904 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1905 method->obj_field_put(parameter_annotations_offset, value); | |
| 1906 } | |
| 1907 | |
| 1908 bool java_lang_reflect_Method::has_annotation_default_field() { | |
| 1909 return (annotation_default_offset >= 0); | |
| 1910 } | |
| 1911 | |
| 1912 oop java_lang_reflect_Method::annotation_default(oop method) { | |
| 1913 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1914 assert(has_annotation_default_field(), "annotation default field must be present"); | |
| 1915 return method->obj_field(annotation_default_offset); | |
| 1916 } | |
| 1917 | |
| 1918 void java_lang_reflect_Method::set_annotation_default(oop method, oop value) { | |
| 1919 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1920 assert(has_annotation_default_field(), "annotation default field must be present"); | |
| 1921 method->obj_field_put(annotation_default_offset, value); | |
| 1922 } | |
| 1923 | |
| 1924 void java_lang_reflect_Constructor::compute_offsets() { | |
| 1142 | 1925 klassOop k = SystemDictionary::reflect_Constructor_klass(); |
|
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1926 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1927 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1928 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1929 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1930 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 1931 // The generic signature and annotations fields are only present in 1.5 |
| 1932 signature_offset = -1; | |
| 1933 annotations_offset = -1; | |
| 1934 parameter_annotations_offset = -1; | |
|
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1935 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1936 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1937 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
| 0 | 1938 } |
| 1939 | |
| 1940 Handle java_lang_reflect_Constructor::create(TRAPS) { | |
| 1941 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
|
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1942 Symbol* name = vmSymbols::java_lang_reflect_Constructor(); |
| 0 | 1943 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
| 1944 instanceKlassHandle klass (THREAD, k); | |
| 1945 // Ensure it is initialized | |
| 1946 klass->initialize(CHECK_NH); | |
| 1947 return klass->allocate_instance_handle(CHECK_NH); | |
| 1948 } | |
| 1949 | |
| 1950 oop java_lang_reflect_Constructor::clazz(oop reflect) { | |
| 1951 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1952 return reflect->obj_field(clazz_offset); | |
| 1953 } | |
| 1954 | |
| 1955 void java_lang_reflect_Constructor::set_clazz(oop reflect, oop value) { | |
| 1956 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1957 reflect->obj_field_put(clazz_offset, value); | |
| 1958 } | |
| 1959 | |
| 1960 oop java_lang_reflect_Constructor::parameter_types(oop constructor) { | |
| 1961 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1962 return constructor->obj_field(parameterTypes_offset); | |
| 1963 } | |
| 1964 | |
| 1965 void java_lang_reflect_Constructor::set_parameter_types(oop constructor, oop value) { | |
| 1966 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1967 constructor->obj_field_put(parameterTypes_offset, value); | |
| 1968 } | |
| 1969 | |
| 1970 oop java_lang_reflect_Constructor::exception_types(oop constructor) { | |
| 1971 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1972 return constructor->obj_field(exceptionTypes_offset); | |
| 1973 } | |
| 1974 | |
| 1975 void java_lang_reflect_Constructor::set_exception_types(oop constructor, oop value) { | |
| 1976 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1977 constructor->obj_field_put(exceptionTypes_offset, value); | |
| 1978 } | |
| 1979 | |
| 1980 int java_lang_reflect_Constructor::slot(oop reflect) { | |
| 1981 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1982 return reflect->int_field(slot_offset); | |
| 1983 } | |
| 1984 | |
| 1985 void java_lang_reflect_Constructor::set_slot(oop reflect, int value) { | |
| 1986 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1987 reflect->int_field_put(slot_offset, value); | |
| 1988 } | |
| 1989 | |
| 1990 int java_lang_reflect_Constructor::modifiers(oop constructor) { | |
| 1991 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1992 return constructor->int_field(modifiers_offset); | |
| 1993 } | |
| 1994 | |
| 1995 void java_lang_reflect_Constructor::set_modifiers(oop constructor, int value) { | |
| 1996 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1997 constructor->int_field_put(modifiers_offset, value); | |
| 1998 } | |
| 1999 | |
| 2000 bool java_lang_reflect_Constructor::has_signature_field() { | |
| 2001 return (signature_offset >= 0); | |
| 2002 } | |
| 2003 | |
| 2004 oop java_lang_reflect_Constructor::signature(oop constructor) { | |
| 2005 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2006 assert(has_signature_field(), "signature field must be present"); | |
| 2007 return constructor->obj_field(signature_offset); | |
| 2008 } | |
| 2009 | |
| 2010 void java_lang_reflect_Constructor::set_signature(oop constructor, oop value) { | |
| 2011 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2012 assert(has_signature_field(), "signature field must be present"); | |
| 2013 constructor->obj_field_put(signature_offset, value); | |
| 2014 } | |
| 2015 | |
| 2016 bool java_lang_reflect_Constructor::has_annotations_field() { | |
| 2017 return (annotations_offset >= 0); | |
| 2018 } | |
| 2019 | |
| 2020 oop java_lang_reflect_Constructor::annotations(oop constructor) { | |
| 2021 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2022 assert(has_annotations_field(), "annotations field must be present"); | |
| 2023 return constructor->obj_field(annotations_offset); | |
| 2024 } | |
| 2025 | |
| 2026 void java_lang_reflect_Constructor::set_annotations(oop constructor, oop value) { | |
| 2027 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2028 assert(has_annotations_field(), "annotations field must be present"); | |
| 2029 constructor->obj_field_put(annotations_offset, value); | |
| 2030 } | |
| 2031 | |
| 2032 bool java_lang_reflect_Constructor::has_parameter_annotations_field() { | |
| 2033 return (parameter_annotations_offset >= 0); | |
| 2034 } | |
| 2035 | |
| 2036 oop java_lang_reflect_Constructor::parameter_annotations(oop method) { | |
| 2037 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2038 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 2039 return method->obj_field(parameter_annotations_offset); | |
| 2040 } | |
| 2041 | |
| 2042 void java_lang_reflect_Constructor::set_parameter_annotations(oop method, oop value) { | |
| 2043 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2044 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 2045 method->obj_field_put(parameter_annotations_offset, value); | |
| 2046 } | |
| 2047 | |
| 2048 void java_lang_reflect_Field::compute_offsets() { | |
| 1142 | 2049 klassOop k = SystemDictionary::reflect_Field_klass(); |
|
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2050 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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2051 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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2052 compute_offset(type_offset, k, vmSymbols::type_name(), vmSymbols::class_signature()); |
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2053 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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2054 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 2055 // The generic signature and annotations fields are only present in 1.5 |
| 2056 signature_offset = -1; | |
| 2057 annotations_offset = -1; | |
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2058 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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2059 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
| 0 | 2060 } |
| 2061 | |
| 2062 Handle java_lang_reflect_Field::create(TRAPS) { | |
| 2063 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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2064 Symbol* name = vmSymbols::java_lang_reflect_Field(); |
| 0 | 2065 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
| 2066 instanceKlassHandle klass (THREAD, k); | |
| 2067 // Ensure it is initialized | |
| 2068 klass->initialize(CHECK_NH); | |
| 2069 return klass->allocate_instance_handle(CHECK_NH); | |
| 2070 } | |
| 2071 | |
| 2072 oop java_lang_reflect_Field::clazz(oop reflect) { | |
| 2073 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2074 return reflect->obj_field(clazz_offset); | |
| 2075 } | |
| 2076 | |
| 2077 void java_lang_reflect_Field::set_clazz(oop reflect, oop value) { | |
| 2078 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2079 reflect->obj_field_put(clazz_offset, value); | |
| 2080 } | |
| 2081 | |
| 2082 oop java_lang_reflect_Field::name(oop field) { | |
| 2083 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2084 return field->obj_field(name_offset); | |
| 2085 } | |
| 2086 | |
| 2087 void java_lang_reflect_Field::set_name(oop field, oop value) { | |
| 2088 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2089 field->obj_field_put(name_offset, value); | |
| 2090 } | |
| 2091 | |
| 2092 oop java_lang_reflect_Field::type(oop field) { | |
| 2093 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2094 return field->obj_field(type_offset); | |
| 2095 } | |
| 2096 | |
| 2097 void java_lang_reflect_Field::set_type(oop field, oop value) { | |
| 2098 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2099 field->obj_field_put(type_offset, value); | |
| 2100 } | |
| 2101 | |
| 2102 int java_lang_reflect_Field::slot(oop reflect) { | |
| 2103 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2104 return reflect->int_field(slot_offset); | |
| 2105 } | |
| 2106 | |
| 2107 void java_lang_reflect_Field::set_slot(oop reflect, int value) { | |
| 2108 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2109 reflect->int_field_put(slot_offset, value); | |
| 2110 } | |
| 2111 | |
| 2112 int java_lang_reflect_Field::modifiers(oop field) { | |
| 2113 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2114 return field->int_field(modifiers_offset); | |
| 2115 } | |
| 2116 | |
| 2117 void java_lang_reflect_Field::set_modifiers(oop field, int value) { | |
| 2118 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2119 field->int_field_put(modifiers_offset, value); | |
| 2120 } | |
| 2121 | |
| 2122 bool java_lang_reflect_Field::has_signature_field() { | |
| 2123 return (signature_offset >= 0); | |
| 2124 } | |
| 2125 | |
| 2126 oop java_lang_reflect_Field::signature(oop field) { | |
| 2127 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2128 assert(has_signature_field(), "signature field must be present"); | |
| 2129 return field->obj_field(signature_offset); | |
| 2130 } | |
| 2131 | |
| 2132 void java_lang_reflect_Field::set_signature(oop field, oop value) { | |
| 2133 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2134 assert(has_signature_field(), "signature field must be present"); | |
| 2135 field->obj_field_put(signature_offset, value); | |
| 2136 } | |
| 2137 | |
| 2138 bool java_lang_reflect_Field::has_annotations_field() { | |
| 2139 return (annotations_offset >= 0); | |
| 2140 } | |
| 2141 | |
| 2142 oop java_lang_reflect_Field::annotations(oop field) { | |
| 2143 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2144 assert(has_annotations_field(), "annotations field must be present"); | |
| 2145 return field->obj_field(annotations_offset); | |
| 2146 } | |
| 2147 | |
| 2148 void java_lang_reflect_Field::set_annotations(oop field, oop value) { | |
| 2149 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2150 assert(has_annotations_field(), "annotations field must be present"); | |
| 2151 field->obj_field_put(annotations_offset, value); | |
| 2152 } | |
| 2153 | |
| 2154 | |
| 2155 void sun_reflect_ConstantPool::compute_offsets() { | |
| 1142 | 2156 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
| 0 | 2157 // This null test can be removed post beta |
| 2158 if (k != NULL) { | |
|
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2159 compute_offset(_cp_oop_offset, k, vmSymbols::constantPoolOop_name(), vmSymbols::object_signature()); |
| 0 | 2160 } |
| 2161 } | |
| 2162 | |
| 2163 | |
| 2164 Handle sun_reflect_ConstantPool::create(TRAPS) { | |
| 2165 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1142 | 2166 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
| 0 | 2167 instanceKlassHandle klass (THREAD, k); |
| 2168 // Ensure it is initialized | |
| 2169 klass->initialize(CHECK_NH); | |
| 2170 return klass->allocate_instance_handle(CHECK_NH); | |
| 2171 } | |
| 2172 | |
| 2173 | |
| 2174 oop sun_reflect_ConstantPool::cp_oop(oop reflect) { | |
| 2175 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2176 return reflect->obj_field(_cp_oop_offset); | |
| 2177 } | |
| 2178 | |
| 2179 | |
| 2180 void sun_reflect_ConstantPool::set_cp_oop(oop reflect, oop value) { | |
| 2181 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2182 reflect->obj_field_put(_cp_oop_offset, value); | |
| 2183 } | |
| 2184 | |
| 2185 void sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets() { | |
| 1142 | 2186 klassOop k = SystemDictionary::reflect_UnsafeStaticFieldAccessorImpl_klass(); |
| 0 | 2187 // This null test can be removed post beta |
| 2188 if (k != NULL) { | |
|
132
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|
2189 compute_offset(_base_offset, k, |
| 0 | 2190 vmSymbols::base_name(), vmSymbols::object_signature()); |
| 2191 } | |
| 2192 } | |
| 2193 | |
|
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|
2194 oop java_lang_boxing_object::initialize_and_allocate(BasicType type, TRAPS) { |
|
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|
2195 klassOop k = SystemDictionary::box_klass(type); |
|
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|
2196 if (k == NULL) return NULL; |
|
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|
2197 instanceKlassHandle h (THREAD, k); |
|
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|
2198 if (!h->is_initialized()) h->initialize(CHECK_0); |
|
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|
2199 return h->allocate_instance(THREAD); |
| 0 | 2200 } |
| 2201 | |
| 2202 | |
| 2203 oop java_lang_boxing_object::create(BasicType type, jvalue* value, TRAPS) { | |
|
132
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2204 oop box = initialize_and_allocate(type, CHECK_0); |
|
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|
2205 if (box == NULL) return NULL; |
| 0 | 2206 switch (type) { |
| 2207 case T_BOOLEAN: | |
| 2208 box->bool_field_put(value_offset, value->z); | |
| 2209 break; | |
| 2210 case T_CHAR: | |
| 2211 box->char_field_put(value_offset, value->c); | |
| 2212 break; | |
| 2213 case T_FLOAT: | |
| 2214 box->float_field_put(value_offset, value->f); | |
| 2215 break; | |
| 2216 case T_DOUBLE: | |
|
165
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|
2217 box->double_field_put(long_value_offset, value->d); |
| 0 | 2218 break; |
| 2219 case T_BYTE: | |
| 2220 box->byte_field_put(value_offset, value->b); | |
| 2221 break; | |
| 2222 case T_SHORT: | |
| 2223 box->short_field_put(value_offset, value->s); | |
| 2224 break; | |
| 2225 case T_INT: | |
| 2226 box->int_field_put(value_offset, value->i); | |
| 2227 break; | |
| 2228 case T_LONG: | |
|
165
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|
2229 box->long_field_put(long_value_offset, value->j); |
| 0 | 2230 break; |
| 2231 default: | |
| 2232 return NULL; | |
| 2233 } | |
| 2234 return box; | |
| 2235 } | |
| 2236 | |
| 2237 | |
|
132
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|
2238 BasicType java_lang_boxing_object::basic_type(oop box) { |
|
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|
2239 if (box == NULL) return T_ILLEGAL; |
|
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|
2240 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
|
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|
2241 if (type == T_OBJECT) // 'unknown' value returned by SD::bkt |
|
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|
2242 return T_ILLEGAL; |
|
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|
2243 return type; |
|
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|
2244 } |
|
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|
2245 |
|
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|
2246 |
| 0 | 2247 BasicType java_lang_boxing_object::get_value(oop box, jvalue* value) { |
|
132
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|
2248 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
|
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|
2249 switch (type) { |
|
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|
2250 case T_BOOLEAN: |
| 0 | 2251 value->z = box->bool_field(value_offset); |
|
132
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|
2252 break; |
|
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|
2253 case T_CHAR: |
| 0 | 2254 value->c = box->char_field(value_offset); |
|
132
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|
2255 break; |
|
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|
2256 case T_FLOAT: |
| 0 | 2257 value->f = box->float_field(value_offset); |
|
132
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|
2258 break; |
|
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113
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|
2259 case T_DOUBLE: |
|
165
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|
2260 value->d = box->double_field(long_value_offset); |
|
132
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|
2261 break; |
|
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|
2262 case T_BYTE: |
| 0 | 2263 value->b = box->byte_field(value_offset); |
|
132
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|
2264 break; |
|
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|
2265 case T_SHORT: |
| 0 | 2266 value->s = box->short_field(value_offset); |
|
132
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|
2267 break; |
|
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|
2268 case T_INT: |
| 0 | 2269 value->i = box->int_field(value_offset); |
|
132
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|
2270 break; |
|
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|
2271 case T_LONG: |
|
165
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|
2272 value->j = box->long_field(long_value_offset); |
|
132
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|
2273 break; |
|
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113
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|
2274 default: |
|
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|
2275 return T_ILLEGAL; |
|
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|
2276 } // end switch |
|
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|
2277 return type; |
| 0 | 2278 } |
| 2279 | |
| 2280 | |
| 2281 BasicType java_lang_boxing_object::set_value(oop box, jvalue* value) { | |
|
132
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|
2282 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
|
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|
2283 switch (type) { |
|
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|
2284 case T_BOOLEAN: |
| 0 | 2285 box->bool_field_put(value_offset, value->z); |
|
132
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|
2286 break; |
|
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113
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|
2287 case T_CHAR: |
| 0 | 2288 box->char_field_put(value_offset, value->c); |
|
132
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|
2289 break; |
|
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113
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|
2290 case T_FLOAT: |
| 0 | 2291 box->float_field_put(value_offset, value->f); |
|
132
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|
2292 break; |
|
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113
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|
2293 case T_DOUBLE: |
|
165
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|
2294 box->double_field_put(long_value_offset, value->d); |
|
132
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113
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|
2295 break; |
|
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113
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|
2296 case T_BYTE: |
| 0 | 2297 box->byte_field_put(value_offset, value->b); |
|
132
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|
2298 break; |
|
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113
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|
2299 case T_SHORT: |
| 0 | 2300 box->short_field_put(value_offset, value->s); |
|
132
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|
2301 break; |
|
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|
2302 case T_INT: |
| 0 | 2303 box->int_field_put(value_offset, value->i); |
|
132
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|
2304 break; |
|
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113
diff
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|
2305 case T_LONG: |
|
165
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|
2306 box->long_field_put(long_value_offset, value->j); |
|
132
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113
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|
2307 break; |
|
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113
diff
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|
2308 default: |
|
60b728ec77c1
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jrose
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113
diff
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|
2309 return T_ILLEGAL; |
|
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jrose
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113
diff
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|
2310 } // end switch |
|
60b728ec77c1
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113
diff
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|
2311 return type; |
| 0 | 2312 } |
| 2313 | |
| 2314 | |
|
665
c89f86385056
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579
diff
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|
2315 void java_lang_boxing_object::print(BasicType type, jvalue* value, outputStream* st) { |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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579
diff
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|
2316 switch (type) { |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
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579
diff
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|
2317 case T_BOOLEAN: st->print("%s", value->z ? "true" : "false"); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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579
diff
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|
2318 case T_CHAR: st->print("%d", value->c); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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579
diff
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|
2319 case T_BYTE: st->print("%d", value->b); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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579
diff
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|
2320 case T_SHORT: st->print("%d", value->s); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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diff
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|
2321 case T_INT: st->print("%d", value->i); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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579
diff
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|
2322 case T_LONG: st->print(INT64_FORMAT, value->j); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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579
diff
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|
2323 case T_FLOAT: st->print("%f", value->f); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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579
diff
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|
2324 case T_DOUBLE: st->print("%lf", value->d); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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579
diff
changeset
|
2325 default: st->print("type %d?", type); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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579
diff
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|
2326 } |
|
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579
diff
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|
2327 } |
|
c89f86385056
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579
diff
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|
2328 |
|
c89f86385056
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|
2329 |
| 0 | 2330 // Support for java_lang_ref_Reference |
|
113
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|
2331 oop java_lang_ref_Reference::pending_list_lock() { |
| 1142 | 2332 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
|
2376
c7f3d0b4570f
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diff
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|
2333 address addr = ik->static_field_addr(static_lock_offset); |
|
113
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|
2334 if (UseCompressedOops) { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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98
diff
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|
2335 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
|
ba764ed4b6f2
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|
2336 } else { |
|
ba764ed4b6f2
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diff
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|
2337 return oopDesc::load_decode_heap_oop((oop*)addr); |
|
ba764ed4b6f2
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|
2338 } |
| 0 | 2339 } |
| 2340 | |
|
113
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|
2341 HeapWord *java_lang_ref_Reference::pending_list_addr() { |
| 1142 | 2342 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
|
2376
c7f3d0b4570f
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diff
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|
2343 address addr = ik->static_field_addr(static_pending_offset); |
|
113
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|
2344 // XXX This might not be HeapWord aligned, almost rather be char *. |
|
ba764ed4b6f2
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|
2345 return (HeapWord*)addr; |
| 0 | 2346 } |
| 2347 | |
|
113
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|
2348 oop java_lang_ref_Reference::pending_list() { |
|
ba764ed4b6f2
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98
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|
2349 char *addr = (char *)pending_list_addr(); |
|
ba764ed4b6f2
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98
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|
2350 if (UseCompressedOops) { |
|
ba764ed4b6f2
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98
diff
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|
2351 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
|
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|
2352 } else { |
|
ba764ed4b6f2
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98
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|
2353 return oopDesc::load_decode_heap_oop((oop*)addr); |
|
ba764ed4b6f2
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98
diff
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|
2354 } |
| 0 | 2355 } |
| 2356 | |
| 2357 | |
| 2358 // Support for java_lang_ref_SoftReference | |
| 2359 | |
| 2360 jlong java_lang_ref_SoftReference::timestamp(oop ref) { | |
| 2361 return ref->long_field(timestamp_offset); | |
| 2362 } | |
| 2363 | |
| 2364 jlong java_lang_ref_SoftReference::clock() { | |
| 1142 | 2365 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
|
2376
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parents:
2357
diff
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|
2366 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
|
c7f3d0b4570f
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parents:
2357
diff
changeset
|
2367 return *offset; |
| 0 | 2368 } |
| 2369 | |
| 2370 void java_lang_ref_SoftReference::set_clock(jlong value) { | |
| 1142 | 2371 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
|
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2372 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
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2373 *offset = value; |
| 0 | 2374 } |
| 2375 | |
| 2376 | |
|
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2377 // Support for java_lang_invoke_MethodHandle |
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2378 |
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2379 int java_lang_invoke_MethodHandle::_type_offset; |
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2380 int java_lang_invoke_MethodHandle::_vmtarget_offset; |
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2381 int java_lang_invoke_MethodHandle::_vmentry_offset; |
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2382 |
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2383 int java_lang_invoke_MemberName::_clazz_offset; |
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2384 int java_lang_invoke_MemberName::_name_offset; |
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2385 int java_lang_invoke_MemberName::_type_offset; |
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2386 int java_lang_invoke_MemberName::_flags_offset; |
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2387 int java_lang_invoke_MemberName::_vmtarget_offset; |
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2388 int java_lang_invoke_MemberName::_vmindex_offset; |
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2389 |
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2390 int java_lang_invoke_DirectMethodHandle::_vmindex_offset; |
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2391 |
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2392 int java_lang_invoke_BoundMethodHandle::_argument_offset; |
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2393 int java_lang_invoke_BoundMethodHandle::_vmargslot_offset; |
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2394 |
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2395 int java_lang_invoke_AdapterMethodHandle::_conversion_offset; |
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2396 |
|
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2397 int java_lang_invoke_CountingMethodHandle::_vmcount_offset; |
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2398 |
|
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2399 void java_lang_invoke_MethodHandle::compute_offsets() { |
| 3938 | 2400 klassOop klass_oop = SystemDictionary::MethodHandle_klass(); |
| 2401 if (klass_oop != NULL && EnableInvokeDynamic) { | |
|
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2402 bool allow_super = false; |
| 3938 | 2403 compute_offset(_type_offset, klass_oop, vmSymbols::type_name(), vmSymbols::java_lang_invoke_MethodType_signature(), allow_super); |
| 2404 METHODHANDLE_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
| 710 | 2405 } |
| 2406 } | |
| 2407 | |
|
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2408 void java_lang_invoke_MemberName::compute_offsets() { |
| 3938 | 2409 klassOop klass_oop = SystemDictionary::MemberName_klass(); |
| 2410 if (klass_oop != NULL && EnableInvokeDynamic) { | |
| 2411 compute_offset(_clazz_offset, klass_oop, vmSymbols::clazz_name(), vmSymbols::class_signature()); | |
| 2412 compute_offset(_name_offset, klass_oop, vmSymbols::name_name(), vmSymbols::string_signature()); | |
| 2413 compute_offset(_type_offset, klass_oop, vmSymbols::type_name(), vmSymbols::object_signature()); | |
| 2414 compute_offset(_flags_offset, klass_oop, vmSymbols::flags_name(), vmSymbols::int_signature()); | |
| 2415 compute_offset(_vmindex_offset, klass_oop, vmSymbols::vmindex_name(), vmSymbols::int_signature()); | |
| 2416 MEMBERNAME_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
| 710 | 2417 } |
| 2418 } | |
| 2419 | |
|
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2420 void java_lang_invoke_DirectMethodHandle::compute_offsets() { |
| 710 | 2421 klassOop k = SystemDictionary::DirectMethodHandle_klass(); |
|
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2422 if (k != NULL && EnableInvokeDynamic) { |
| 3938 | 2423 DIRECTMETHODHANDLE_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); |
| 710 | 2424 } |
| 2425 } | |
| 2426 | |
|
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2427 void java_lang_invoke_BoundMethodHandle::compute_offsets() { |
| 710 | 2428 klassOop k = SystemDictionary::BoundMethodHandle_klass(); |
|
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2429 if (k != NULL && EnableInvokeDynamic) { |
| 710 | 2430 compute_offset(_vmargslot_offset, k, vmSymbols::vmargslot_name(), vmSymbols::int_signature(), true); |
| 2431 compute_offset(_argument_offset, k, vmSymbols::argument_name(), vmSymbols::object_signature(), true); | |
| 2432 } | |
| 2433 } | |
| 2434 | |
|
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2435 void java_lang_invoke_AdapterMethodHandle::compute_offsets() { |
| 710 | 2436 klassOop k = SystemDictionary::AdapterMethodHandle_klass(); |
|
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2437 if (k != NULL && EnableInvokeDynamic) { |
| 710 | 2438 compute_offset(_conversion_offset, k, vmSymbols::conversion_name(), vmSymbols::int_signature(), true); |
| 2439 } | |
| 2440 } | |
| 2441 | |
|
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2442 void java_lang_invoke_CountingMethodHandle::compute_offsets() { |
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2443 klassOop k = SystemDictionary::CountingMethodHandle_klass(); |
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2444 if (k != NULL && EnableInvokeDynamic) { |
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|
2445 compute_offset(_vmcount_offset, k, vmSymbols::vmcount_name(), vmSymbols::int_signature(), true); |
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|
2446 } |
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|
2447 } |
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|
2448 |
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|
2449 int java_lang_invoke_CountingMethodHandle::vmcount(oop mh) { |
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2450 assert(is_instance(mh), "CMH only"); |
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2451 return mh->int_field(_vmcount_offset); |
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|
2452 } |
|
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|
2453 |
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2454 void java_lang_invoke_CountingMethodHandle::set_vmcount(oop mh, int count) { |
|
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|
2455 assert(is_instance(mh), "CMH only"); |
|
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|
2456 mh->int_field_put(_vmcount_offset, count); |
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|
2457 } |
|
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|
2458 |
|
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|
2459 oop java_lang_invoke_MethodHandle::type(oop mh) { |
| 710 | 2460 return mh->obj_field(_type_offset); |
| 2461 } | |
| 2462 | |
|
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|
2463 void java_lang_invoke_MethodHandle::set_type(oop mh, oop mtype) { |
| 710 | 2464 mh->obj_field_put(_type_offset, mtype); |
| 2465 } | |
| 2466 | |
| 2467 // fetch type.form.vmslots, which is the number of JVM stack slots | |
| 2468 // required to carry the arguments of this MH | |
| 3938 | 2469 int java_lang_invoke_MethodHandle::vmslots(oop mh) { |
| 710 | 2470 oop mtype = type(mh); |
| 2471 if (mtype == NULL) return 0; // Java code would get NPE | |
|
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|
2472 oop form = java_lang_invoke_MethodType::form(mtype); |
| 710 | 2473 if (form == NULL) return 0; // Java code would get NPE |
|
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|
2474 return java_lang_invoke_MethodTypeForm::vmslots(form); |
| 710 | 2475 } |
| 2476 | |
| 2477 // fetch the low-level entry point for this mh | |
|
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|
2478 MethodHandleEntry* java_lang_invoke_MethodHandle::vmentry(oop mh) { |
| 710 | 2479 return (MethodHandleEntry*) mh->address_field(_vmentry_offset); |
| 2480 } | |
| 2481 | |
|
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|
2482 void java_lang_invoke_MethodHandle::set_vmentry(oop mh, MethodHandleEntry* me) { |
| 710 | 2483 assert(_vmentry_offset != 0, "must be present"); |
| 2484 | |
| 2485 // This is always the final step that initializes a valid method handle: | |
| 2486 mh->release_address_field_put(_vmentry_offset, (address) me); | |
| 2487 | |
| 2488 // There should be enough memory barriers on exit from native methods | |
| 2489 // to ensure that the MH is fully initialized to all threads before | |
| 2490 // Java code can publish it in global data structures. | |
| 2491 // But just in case, we use release_address_field_put. | |
| 2492 } | |
| 2493 | |
| 2494 /// MemberName accessors | |
| 2495 | |
|
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|
2496 oop java_lang_invoke_MemberName::clazz(oop mname) { |
| 710 | 2497 assert(is_instance(mname), "wrong type"); |
| 2498 return mname->obj_field(_clazz_offset); | |
| 2499 } | |
| 2500 | |
|
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|
2501 void java_lang_invoke_MemberName::set_clazz(oop mname, oop clazz) { |
| 710 | 2502 assert(is_instance(mname), "wrong type"); |
| 2503 mname->obj_field_put(_clazz_offset, clazz); | |
| 2504 } | |
| 2505 | |
|
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|
2506 oop java_lang_invoke_MemberName::name(oop mname) { |
| 710 | 2507 assert(is_instance(mname), "wrong type"); |
| 2508 return mname->obj_field(_name_offset); | |
| 2509 } | |
| 2510 | |
|
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|
2511 void java_lang_invoke_MemberName::set_name(oop mname, oop name) { |
| 710 | 2512 assert(is_instance(mname), "wrong type"); |
| 2513 mname->obj_field_put(_name_offset, name); | |
| 2514 } | |
| 2515 | |
|
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|
2516 oop java_lang_invoke_MemberName::type(oop mname) { |
| 710 | 2517 assert(is_instance(mname), "wrong type"); |
| 2518 return mname->obj_field(_type_offset); | |
| 2519 } | |
| 2520 | |
|
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2521 void java_lang_invoke_MemberName::set_type(oop mname, oop type) { |
| 710 | 2522 assert(is_instance(mname), "wrong type"); |
| 2523 mname->obj_field_put(_type_offset, type); | |
| 2524 } | |
| 2525 | |
|
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2526 int java_lang_invoke_MemberName::flags(oop mname) { |
| 710 | 2527 assert(is_instance(mname), "wrong type"); |
| 2528 return mname->int_field(_flags_offset); | |
| 2529 } | |
| 2530 | |
|
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|
2531 void java_lang_invoke_MemberName::set_flags(oop mname, int flags) { |
| 710 | 2532 assert(is_instance(mname), "wrong type"); |
| 2533 mname->int_field_put(_flags_offset, flags); | |
| 2534 } | |
| 2535 | |
|
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2536 oop java_lang_invoke_MemberName::vmtarget(oop mname) { |
| 710 | 2537 assert(is_instance(mname), "wrong type"); |
| 2538 return mname->obj_field(_vmtarget_offset); | |
| 2539 } | |
| 2540 | |
|
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|
2541 void java_lang_invoke_MemberName::set_vmtarget(oop mname, oop ref) { |
| 710 | 2542 assert(is_instance(mname), "wrong type"); |
| 2543 mname->obj_field_put(_vmtarget_offset, ref); | |
| 2544 } | |
| 2545 | |
|
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|
2546 int java_lang_invoke_MemberName::vmindex(oop mname) { |
| 710 | 2547 assert(is_instance(mname), "wrong type"); |
| 2548 return mname->int_field(_vmindex_offset); | |
| 2549 } | |
| 2550 | |
|
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|
2551 void java_lang_invoke_MemberName::set_vmindex(oop mname, int index) { |
| 710 | 2552 assert(is_instance(mname), "wrong type"); |
| 2553 mname->int_field_put(_vmindex_offset, index); | |
| 2554 } | |
| 2555 | |
|
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2556 oop java_lang_invoke_MethodHandle::vmtarget(oop mh) { |
| 710 | 2557 assert(is_instance(mh), "MH only"); |
| 2558 return mh->obj_field(_vmtarget_offset); | |
| 2559 } | |
| 2560 | |
|
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2561 void java_lang_invoke_MethodHandle::set_vmtarget(oop mh, oop ref) { |
| 710 | 2562 assert(is_instance(mh), "MH only"); |
| 2563 mh->obj_field_put(_vmtarget_offset, ref); | |
| 2564 } | |
| 2565 | |
|
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2566 int java_lang_invoke_DirectMethodHandle::vmindex(oop mh) { |
| 710 | 2567 assert(is_instance(mh), "DMH only"); |
| 2568 return mh->int_field(_vmindex_offset); | |
| 2569 } | |
| 2570 | |
|
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2571 void java_lang_invoke_DirectMethodHandle::set_vmindex(oop mh, int index) { |
| 710 | 2572 assert(is_instance(mh), "DMH only"); |
| 2573 mh->int_field_put(_vmindex_offset, index); | |
| 2574 } | |
| 2575 | |
|
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|
2576 int java_lang_invoke_BoundMethodHandle::vmargslot(oop mh) { |
| 710 | 2577 assert(is_instance(mh), "BMH only"); |
| 2578 return mh->int_field(_vmargslot_offset); | |
| 2579 } | |
| 2580 | |
|
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|
2581 oop java_lang_invoke_BoundMethodHandle::argument(oop mh) { |
| 710 | 2582 assert(is_instance(mh), "BMH only"); |
| 2583 return mh->obj_field(_argument_offset); | |
| 2584 } | |
| 2585 | |
|
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2586 int java_lang_invoke_AdapterMethodHandle::conversion(oop mh) { |
| 710 | 2587 assert(is_instance(mh), "AMH only"); |
| 2588 return mh->int_field(_conversion_offset); | |
| 2589 } | |
| 2590 | |
|
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2591 void java_lang_invoke_AdapterMethodHandle::set_conversion(oop mh, int conv) { |
| 710 | 2592 assert(is_instance(mh), "AMH only"); |
| 2593 mh->int_field_put(_conversion_offset, conv); | |
| 2594 } | |
| 2595 | |
| 2596 | |
|
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2597 // Support for java_lang_invoke_MethodType |
|
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|
2598 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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parents:
2356
diff
changeset
|
2599 int java_lang_invoke_MethodType::_rtype_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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parents:
2356
diff
changeset
|
2600 int java_lang_invoke_MethodType::_ptypes_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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parents:
2356
diff
changeset
|
2601 int java_lang_invoke_MethodType::_form_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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parents:
2356
diff
changeset
|
2602 |
|
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7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2603 void java_lang_invoke_MethodType::compute_offsets() { |
| 710 | 2604 klassOop k = SystemDictionary::MethodType_klass(); |
| 2605 if (k != NULL) { | |
| 2606 compute_offset(_rtype_offset, k, vmSymbols::rtype_name(), vmSymbols::class_signature()); | |
| 2607 compute_offset(_ptypes_offset, k, vmSymbols::ptypes_name(), vmSymbols::class_array_signature()); | |
|
2357
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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parents:
2356
diff
changeset
|
2608 compute_offset(_form_offset, k, vmSymbols::form_name(), vmSymbols::java_lang_invoke_MethodTypeForm_signature()); |
| 710 | 2609 } |
| 2610 } | |
| 2611 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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parents:
2356
diff
changeset
|
2612 void java_lang_invoke_MethodType::print_signature(oop mt, outputStream* st) { |
| 710 | 2613 st->print("("); |
| 2614 objArrayOop pts = ptypes(mt); | |
| 2615 for (int i = 0, limit = pts->length(); i < limit; i++) { | |
| 2616 java_lang_Class::print_signature(pts->obj_at(i), st); | |
| 2617 } | |
| 2618 st->print(")"); | |
| 2619 java_lang_Class::print_signature(rtype(mt), st); | |
| 2620 } | |
| 2621 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2622 Symbol* java_lang_invoke_MethodType::as_signature(oop mt, bool intern_if_not_found, TRAPS) { |
| 710 | 2623 ResourceMark rm; |
| 2624 stringStream buffer(128); | |
| 2625 print_signature(mt, &buffer); | |
| 2626 const char* sigstr = buffer.base(); | |
| 2627 int siglen = (int) buffer.size(); | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2628 Symbol *name; |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2629 if (!intern_if_not_found) { |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2630 name = SymbolTable::probe(sigstr, siglen); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2631 } else { |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2632 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2633 } |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2634 return name; |
| 710 | 2635 } |
| 2636 | |
|
3785
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2637 bool java_lang_invoke_MethodType::equals(oop mt1, oop mt2) { |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2638 if (rtype(mt1) != rtype(mt2)) |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2639 return false; |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2640 if (ptype_count(mt1) != ptype_count(mt2)) |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2641 return false; |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2642 for (int i = ptype_count(mt1) - 1; i >= 0; i--) { |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2643 if (ptype(mt1, i) != ptype(mt2, i)) |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2644 return false; |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2645 } |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2646 return true; |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2647 } |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2648 |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2649 oop java_lang_invoke_MethodType::rtype(oop mt) { |
| 710 | 2650 assert(is_instance(mt), "must be a MethodType"); |
| 2651 return mt->obj_field(_rtype_offset); | |
| 2652 } | |
| 2653 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2654 objArrayOop java_lang_invoke_MethodType::ptypes(oop mt) { |
| 710 | 2655 assert(is_instance(mt), "must be a MethodType"); |
| 2656 return (objArrayOop) mt->obj_field(_ptypes_offset); | |
| 2657 } | |
| 2658 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2659 oop java_lang_invoke_MethodType::form(oop mt) { |
| 710 | 2660 assert(is_instance(mt), "must be a MethodType"); |
| 2661 return mt->obj_field(_form_offset); | |
| 2662 } | |
| 2663 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2664 oop java_lang_invoke_MethodType::ptype(oop mt, int idx) { |
| 710 | 2665 return ptypes(mt)->obj_at(idx); |
| 2666 } | |
| 2667 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2668 int java_lang_invoke_MethodType::ptype_count(oop mt) { |
|
1133
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
twisti
parents:
1096
diff
changeset
|
2669 return ptypes(mt)->length(); |
|
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
twisti
parents:
1096
diff
changeset
|
2670 } |
|
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
twisti
parents:
1096
diff
changeset
|
2671 |
| 710 | 2672 |
| 2673 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2674 // Support for java_lang_invoke_MethodTypeForm |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2675 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2676 int java_lang_invoke_MethodTypeForm::_vmslots_offset; |
|
3363
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2677 int java_lang_invoke_MethodTypeForm::_vmlayout_offset; |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2678 int java_lang_invoke_MethodTypeForm::_erasedType_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2679 int java_lang_invoke_MethodTypeForm::_genericInvoker_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2680 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2681 void java_lang_invoke_MethodTypeForm::compute_offsets() { |
| 710 | 2682 klassOop k = SystemDictionary::MethodTypeForm_klass(); |
| 2683 if (k != NULL) { | |
| 2684 compute_optional_offset(_vmslots_offset, k, vmSymbols::vmslots_name(), vmSymbols::int_signature(), true); | |
|
3363
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2685 compute_optional_offset(_vmlayout_offset, k, vmSymbols::vmlayout_name(), vmSymbols::object_signature()); |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2686 compute_optional_offset(_erasedType_offset, k, vmSymbols::erasedType_name(), vmSymbols::java_lang_invoke_MethodType_signature(), true); |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2687 compute_optional_offset(_genericInvoker_offset, k, vmSymbols::genericInvoker_name(), vmSymbols::java_lang_invoke_MethodHandle_signature(), true); |
|
1793
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2688 if (_genericInvoker_offset == 0) _genericInvoker_offset = -1; // set to explicit "empty" value |
| 3938 | 2689 METHODTYPEFORM_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); |
| 710 | 2690 } |
| 2691 } | |
| 2692 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2693 int java_lang_invoke_MethodTypeForm::vmslots(oop mtform) { |
| 710 | 2694 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
|
3363
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2695 assert(_vmslots_offset > 0, ""); |
| 710 | 2696 return mtform->int_field(_vmslots_offset); |
| 2697 } | |
| 2698 | |
|
3363
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2699 oop java_lang_invoke_MethodTypeForm::vmlayout(oop mtform) { |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2700 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2701 assert(_vmlayout_offset > 0, ""); |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2702 return mtform->obj_field(_vmlayout_offset); |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2703 } |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2704 |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2705 oop java_lang_invoke_MethodTypeForm::init_vmlayout(oop mtform, oop cookie) { |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2706 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2707 oop previous = vmlayout(mtform); |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2708 if (previous != NULL) { |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2709 return previous; // someone else beat us to it |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2710 } |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2711 HeapWord* cookie_addr = (HeapWord*) mtform->obj_field_addr<oop>(_vmlayout_offset); |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2712 OrderAccess::storestore(); // make sure our copy is fully committed |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2713 previous = oopDesc::atomic_compare_exchange_oop(cookie, cookie_addr, previous); |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2714 if (previous != NULL) { |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2715 return previous; // someone else beat us to it |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2716 } |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2717 return cookie; |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2718 } |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2719 |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2720 oop java_lang_invoke_MethodTypeForm::erasedType(oop mtform) { |
| 710 | 2721 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
| 2722 return mtform->obj_field(_erasedType_offset); | |
| 2723 } | |
| 2724 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2725 oop java_lang_invoke_MethodTypeForm::genericInvoker(oop mtform) { |
|
1793
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2726 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
|
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2727 return mtform->obj_field(_genericInvoker_offset); |
|
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2728 } |
|
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2729 |
| 710 | 2730 |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2731 // Support for java_lang_invoke_CallSite |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2732 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2733 int java_lang_invoke_CallSite::_target_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2734 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2735 void java_lang_invoke_CallSite::compute_offsets() { |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2736 if (!EnableInvokeDynamic) return; |
|
1059
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
949
diff
changeset
|
2737 klassOop k = SystemDictionary::CallSite_klass(); |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2738 if (k != NULL) { |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2739 compute_offset(_target_offset, k, vmSymbols::target_name(), vmSymbols::java_lang_invoke_MethodHandle_signature()); |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2740 } |
|
3900
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2741 |
|
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2742 // Disallow compilation of CallSite.setTargetNormal and CallSite.setTargetVolatile |
|
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2743 // (For C2: keep this until we have throttling logic for uncommon traps.) |
|
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2744 if (k != NULL) { |
|
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2745 instanceKlass* ik = instanceKlass::cast(k); |
|
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2746 methodOop m_normal = ik->lookup_method(vmSymbols::setTargetNormal_name(), vmSymbols::setTarget_signature()); |
|
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2747 methodOop m_volatile = ik->lookup_method(vmSymbols::setTargetVolatile_name(), vmSymbols::setTarget_signature()); |
|
3929
f94227b6117b
7090259: Fix hotspot sources to build with old compilers
kvn
parents:
3905
diff
changeset
|
2748 guarantee(m_normal != NULL && m_volatile != NULL, "must exist"); |
|
3900
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2749 m_normal->set_not_compilable_quietly(); |
|
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2750 m_volatile->set_not_compilable_quietly(); |
|
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2751 } |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2752 } |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2753 |
| 710 | 2754 |
| 0 | 2755 // Support for java_security_AccessControlContext |
| 2756 | |
| 2757 int java_security_AccessControlContext::_context_offset = 0; | |
| 2758 int java_security_AccessControlContext::_privilegedContext_offset = 0; | |
| 2759 int java_security_AccessControlContext::_isPrivileged_offset = 0; | |
| 2760 | |
| 2761 void java_security_AccessControlContext::compute_offsets() { | |
| 2762 assert(_isPrivileged_offset == 0, "offsets should be initialized only once"); | |
| 2763 fieldDescriptor fd; | |
| 2764 instanceKlass* ik = instanceKlass::cast(SystemDictionary::AccessControlContext_klass()); | |
| 2765 | |
| 2766 if (!ik->find_local_field(vmSymbols::context_name(), vmSymbols::protectiondomain_signature(), &fd)) { | |
| 2767 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2768 } | |
| 2769 _context_offset = fd.offset(); | |
| 2770 | |
| 2771 if (!ik->find_local_field(vmSymbols::privilegedContext_name(), vmSymbols::accesscontrolcontext_signature(), &fd)) { | |
| 2772 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2773 } | |
| 2774 _privilegedContext_offset = fd.offset(); | |
| 2775 | |
| 2776 if (!ik->find_local_field(vmSymbols::isPrivileged_name(), vmSymbols::bool_signature(), &fd)) { | |
| 2777 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2778 } | |
| 2779 _isPrivileged_offset = fd.offset(); | |
| 2780 } | |
| 2781 | |
| 2782 | |
| 2783 oop java_security_AccessControlContext::create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS) { | |
| 2784 assert(_isPrivileged_offset != 0, "offsets should have been initialized"); | |
| 2785 // Ensure klass is initialized | |
| 2786 instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->initialize(CHECK_0); | |
| 2787 // Allocate result | |
| 2788 oop result = instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->allocate_instance(CHECK_0); | |
| 2789 // Fill in values | |
| 2790 result->obj_field_put(_context_offset, context()); | |
| 2791 result->obj_field_put(_privilegedContext_offset, privileged_context()); | |
| 2792 result->bool_field_put(_isPrivileged_offset, isPrivileged); | |
| 2793 return result; | |
| 2794 } | |
| 2795 | |
| 2796 | |
| 2797 // Support for java_lang_ClassLoader | |
| 3938 | 2798 bool java_lang_ClassLoader::offsets_computed = false; |
| 2799 int java_lang_ClassLoader::parallelCapable_offset = -1; | |
| 2800 | |
| 2801 void java_lang_ClassLoader::compute_offsets() { | |
| 2802 assert(!offsets_computed, "offsets should be initialized only once"); | |
| 2803 offsets_computed = true; | |
| 2804 | |
| 2805 // The field indicating parallelCapable (parallelLockMap) is only present starting in 7, | |
| 2806 klassOop k1 = SystemDictionary::ClassLoader_klass(); | |
| 2807 compute_optional_offset(parallelCapable_offset, | |
| 2808 k1, vmSymbols::parallelCapable_name(), vmSymbols::concurrenthashmap_signature()); | |
| 2809 } | |
| 0 | 2810 |
| 2811 oop java_lang_ClassLoader::parent(oop loader) { | |
| 2812 assert(loader->is_oop(), "loader must be oop"); | |
| 2813 return loader->obj_field(parent_offset); | |
| 2814 } | |
| 2815 | |
| 2816 | |
| 3938 | 2817 // For class loader classes, parallelCapable defined |
| 2818 // based on non-null field | |
| 2819 // Written to by java.lang.ClassLoader, vm only reads this field, doesn't set it | |
| 2820 bool java_lang_ClassLoader::parallelCapable(oop class_loader) { | |
| 2821 if (!JDK_Version::is_gte_jdk17x_version() | |
| 2822 || parallelCapable_offset == -1) { | |
| 2823 // Default for backward compatibility is false | |
| 2824 return false; | |
| 2825 } | |
| 2826 return (class_loader->obj_field(parallelCapable_offset) != NULL); | |
| 2827 } | |
| 2828 | |
| 0 | 2829 bool java_lang_ClassLoader::is_trusted_loader(oop loader) { |
| 2830 // Fix for 4474172; see evaluation for more details | |
| 2831 loader = non_reflection_class_loader(loader); | |
| 2832 | |
| 2833 oop cl = SystemDictionary::java_system_loader(); | |
| 2834 while(cl != NULL) { | |
| 2835 if (cl == loader) return true; | |
| 2836 cl = parent(cl); | |
| 2837 } | |
| 2838 return false; | |
| 2839 } | |
| 2840 | |
| 2841 oop java_lang_ClassLoader::non_reflection_class_loader(oop loader) { | |
| 2842 if (loader != NULL) { | |
| 2843 // See whether this is one of the class loaders associated with | |
| 2844 // the generated bytecodes for reflection, and if so, "magically" | |
| 2845 // delegate to its parent to prevent class loading from occurring | |
| 2846 // in places where applications using reflection didn't expect it. | |
| 1142 | 2847 klassOop delegating_cl_class = SystemDictionary::reflect_DelegatingClassLoader_klass(); |
| 0 | 2848 // This might be null in non-1.4 JDKs |
| 2849 if (delegating_cl_class != NULL && loader->is_a(delegating_cl_class)) { | |
| 2850 return parent(loader); | |
| 2851 } | |
| 2852 } | |
| 2853 return loader; | |
| 2854 } | |
| 2855 | |
| 2856 | |
| 2857 // Support for java_lang_System | |
| 2858 int java_lang_System::in_offset_in_bytes() { | |
|
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2859 return (instanceMirrorKlass::offset_of_static_fields() + static_in_offset); |
| 0 | 2860 } |
| 2861 | |
| 2862 | |
| 2863 int java_lang_System::out_offset_in_bytes() { | |
|
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2864 return (instanceMirrorKlass::offset_of_static_fields() + static_out_offset); |
| 0 | 2865 } |
| 2866 | |
| 2867 | |
| 2868 int java_lang_System::err_offset_in_bytes() { | |
|
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2869 return (instanceMirrorKlass::offset_of_static_fields() + static_err_offset); |
| 0 | 2870 } |
| 2871 | |
| 2872 | |
| 2873 | |
| 3938 | 2874 int java_lang_Class::_klass_offset; |
| 2875 int java_lang_Class::_array_klass_offset; | |
| 2876 int java_lang_Class::_resolved_constructor_offset; | |
| 2877 int java_lang_Class::_oop_size_offset; | |
| 2878 int java_lang_Class::_static_oop_field_count_offset; | |
| 0 | 2879 int java_lang_Throwable::backtrace_offset; |
| 2880 int java_lang_Throwable::detailMessage_offset; | |
| 2881 int java_lang_Throwable::cause_offset; | |
| 2882 int java_lang_Throwable::stackTrace_offset; | |
|
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2883 int java_lang_Throwable::static_unassigned_stacktrace_offset; |
| 0 | 2884 int java_lang_reflect_AccessibleObject::override_offset; |
| 2885 int java_lang_reflect_Method::clazz_offset; | |
| 2886 int java_lang_reflect_Method::name_offset; | |
| 2887 int java_lang_reflect_Method::returnType_offset; | |
| 2888 int java_lang_reflect_Method::parameterTypes_offset; | |
| 2889 int java_lang_reflect_Method::exceptionTypes_offset; | |
| 2890 int java_lang_reflect_Method::slot_offset; | |
| 2891 int java_lang_reflect_Method::modifiers_offset; | |
| 2892 int java_lang_reflect_Method::signature_offset; | |
| 2893 int java_lang_reflect_Method::annotations_offset; | |
| 2894 int java_lang_reflect_Method::parameter_annotations_offset; | |
| 2895 int java_lang_reflect_Method::annotation_default_offset; | |
| 2896 int java_lang_reflect_Constructor::clazz_offset; | |
| 2897 int java_lang_reflect_Constructor::parameterTypes_offset; | |
| 2898 int java_lang_reflect_Constructor::exceptionTypes_offset; | |
| 2899 int java_lang_reflect_Constructor::slot_offset; | |
| 2900 int java_lang_reflect_Constructor::modifiers_offset; | |
| 2901 int java_lang_reflect_Constructor::signature_offset; | |
| 2902 int java_lang_reflect_Constructor::annotations_offset; | |
| 2903 int java_lang_reflect_Constructor::parameter_annotations_offset; | |
| 2904 int java_lang_reflect_Field::clazz_offset; | |
| 2905 int java_lang_reflect_Field::name_offset; | |
| 2906 int java_lang_reflect_Field::type_offset; | |
| 2907 int java_lang_reflect_Field::slot_offset; | |
| 2908 int java_lang_reflect_Field::modifiers_offset; | |
| 2909 int java_lang_reflect_Field::signature_offset; | |
| 2910 int java_lang_reflect_Field::annotations_offset; | |
| 2911 int java_lang_boxing_object::value_offset; | |
|
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2912 int java_lang_boxing_object::long_value_offset; |
| 0 | 2913 int java_lang_ref_Reference::referent_offset; |
| 2914 int java_lang_ref_Reference::queue_offset; | |
| 2915 int java_lang_ref_Reference::next_offset; | |
| 2916 int java_lang_ref_Reference::discovered_offset; | |
| 2917 int java_lang_ref_Reference::static_lock_offset; | |
| 2918 int java_lang_ref_Reference::static_pending_offset; | |
| 2919 int java_lang_ref_Reference::number_of_fake_oop_fields; | |
| 2920 int java_lang_ref_SoftReference::timestamp_offset; | |
| 2921 int java_lang_ref_SoftReference::static_clock_offset; | |
| 2922 int java_lang_ClassLoader::parent_offset; | |
| 2923 int java_lang_System::static_in_offset; | |
| 2924 int java_lang_System::static_out_offset; | |
| 2925 int java_lang_System::static_err_offset; | |
| 2926 int java_lang_StackTraceElement::declaringClass_offset; | |
| 2927 int java_lang_StackTraceElement::methodName_offset; | |
| 2928 int java_lang_StackTraceElement::fileName_offset; | |
| 2929 int java_lang_StackTraceElement::lineNumber_offset; | |
| 2930 int java_lang_AssertionStatusDirectives::classes_offset; | |
| 2931 int java_lang_AssertionStatusDirectives::classEnabled_offset; | |
| 2932 int java_lang_AssertionStatusDirectives::packages_offset; | |
| 2933 int java_lang_AssertionStatusDirectives::packageEnabled_offset; | |
| 2934 int java_lang_AssertionStatusDirectives::deflt_offset; | |
| 2935 int java_nio_Buffer::_limit_offset; | |
| 2936 int sun_misc_AtomicLongCSImpl::_value_offset; | |
| 2937 int java_util_concurrent_locks_AbstractOwnableSynchronizer::_owner_offset = 0; | |
| 2938 int sun_reflect_ConstantPool::_cp_oop_offset; | |
| 2939 int sun_reflect_UnsafeStaticFieldAccessorImpl::_base_offset; | |
| 2940 | |
| 2941 | |
| 2942 // Support for java_lang_StackTraceElement | |
| 2943 | |
| 2944 void java_lang_StackTraceElement::set_fileName(oop element, oop value) { | |
| 2945 element->obj_field_put(fileName_offset, value); | |
| 2946 } | |
| 2947 | |
| 2948 void java_lang_StackTraceElement::set_declaringClass(oop element, oop value) { | |
| 2949 element->obj_field_put(declaringClass_offset, value); | |
| 2950 } | |
| 2951 | |
| 2952 void java_lang_StackTraceElement::set_methodName(oop element, oop value) { | |
| 2953 element->obj_field_put(methodName_offset, value); | |
| 2954 } | |
| 2955 | |
| 2956 void java_lang_StackTraceElement::set_lineNumber(oop element, int value) { | |
| 2957 element->int_field_put(lineNumber_offset, value); | |
| 2958 } | |
| 2959 | |
| 2960 | |
| 2961 // Support for java Assertions - java_lang_AssertionStatusDirectives. | |
| 2962 | |
| 2963 void java_lang_AssertionStatusDirectives::set_classes(oop o, oop val) { | |
| 2964 o->obj_field_put(classes_offset, val); | |
| 2965 } | |
| 2966 | |
| 2967 void java_lang_AssertionStatusDirectives::set_classEnabled(oop o, oop val) { | |
| 2968 o->obj_field_put(classEnabled_offset, val); | |
| 2969 } | |
| 2970 | |
| 2971 void java_lang_AssertionStatusDirectives::set_packages(oop o, oop val) { | |
| 2972 o->obj_field_put(packages_offset, val); | |
| 2973 } | |
| 2974 | |
| 2975 void java_lang_AssertionStatusDirectives::set_packageEnabled(oop o, oop val) { | |
| 2976 o->obj_field_put(packageEnabled_offset, val); | |
| 2977 } | |
| 2978 | |
| 2979 void java_lang_AssertionStatusDirectives::set_deflt(oop o, bool val) { | |
| 2980 o->bool_field_put(deflt_offset, val); | |
| 2981 } | |
| 2982 | |
| 2983 | |
| 2984 // Support for intrinsification of java.nio.Buffer.checkIndex | |
| 2985 int java_nio_Buffer::limit_offset() { | |
| 2986 return _limit_offset; | |
| 2987 } | |
| 2988 | |
| 2989 | |
| 2990 void java_nio_Buffer::compute_offsets() { | |
| 3938 | 2991 klassOop k = SystemDictionary::nio_Buffer_klass(); |
|
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2992 assert(k != NULL, "must be loaded in 1.4+"); |
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2993 compute_offset(_limit_offset, k, vmSymbols::limit_name(), vmSymbols::int_signature()); |
| 0 | 2994 } |
| 2995 | |
| 2996 // Support for intrinsification of sun.misc.AtomicLongCSImpl.attemptUpdate | |
| 2997 int sun_misc_AtomicLongCSImpl::value_offset() { | |
| 3938 | 2998 assert(SystemDictionary::AtomicLongCSImpl_klass() != NULL, "can't call this"); |
| 0 | 2999 return _value_offset; |
| 3000 } | |
| 3001 | |
| 3002 | |
| 3003 void sun_misc_AtomicLongCSImpl::compute_offsets() { | |
| 3938 | 3004 klassOop k = SystemDictionary::AtomicLongCSImpl_klass(); |
| 0 | 3005 // If this class is not present, its value field offset won't be referenced. |
| 3006 if (k != NULL) { | |
|
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|
3007 compute_offset(_value_offset, k, vmSymbols::value_name(), vmSymbols::long_signature()); |
| 0 | 3008 } |
| 3009 } | |
| 3010 | |
| 3011 void java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(TRAPS) { | |
| 3012 if (_owner_offset != 0) return; | |
| 3013 | |
| 3014 assert(JDK_Version::is_gte_jdk16x_version(), "Must be JDK 1.6 or later"); | |
| 3015 SystemDictionary::load_abstract_ownable_synchronizer_klass(CHECK); | |
| 3016 klassOop k = SystemDictionary::abstract_ownable_synchronizer_klass(); | |
|
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|
3017 compute_offset(_owner_offset, k, |
| 0 | 3018 vmSymbols::exclusive_owner_thread_name(), vmSymbols::thread_signature()); |
| 3019 } | |
| 3020 | |
| 3021 oop java_util_concurrent_locks_AbstractOwnableSynchronizer::get_owner_threadObj(oop obj) { | |
| 3022 assert(_owner_offset != 0, "Must be initialized"); | |
| 3023 return obj->obj_field(_owner_offset); | |
| 3024 } | |
| 3025 | |
| 3026 // Compute hard-coded offsets | |
| 3027 // Invoked before SystemDictionary::initialize, so pre-loaded classes | |
| 3028 // are not available to determine the offset_of_static_fields. | |
| 3029 void JavaClasses::compute_hard_coded_offsets() { | |
|
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3030 const int x = heapOopSize; |
|
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3031 const int header = instanceOopDesc::base_offset_in_bytes(); |
| 0 | 3032 |
| 3033 // Throwable Class | |
| 3034 java_lang_Throwable::backtrace_offset = java_lang_Throwable::hc_backtrace_offset * x + header; | |
| 3035 java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header; | |
| 3036 java_lang_Throwable::cause_offset = java_lang_Throwable::hc_cause_offset * x + header; | |
| 3037 java_lang_Throwable::stackTrace_offset = java_lang_Throwable::hc_stackTrace_offset * x + header; | |
|
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3038 java_lang_Throwable::static_unassigned_stacktrace_offset = java_lang_Throwable::hc_static_unassigned_stacktrace_offset * x; |
| 0 | 3039 |
| 3040 // java_lang_boxing_object | |
|
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3041 java_lang_boxing_object::value_offset = java_lang_boxing_object::hc_value_offset + header; |
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3042 java_lang_boxing_object::long_value_offset = align_size_up((java_lang_boxing_object::hc_value_offset + header), BytesPerLong); |
| 0 | 3043 |
| 3044 // java_lang_ref_Reference: | |
| 3045 java_lang_ref_Reference::referent_offset = java_lang_ref_Reference::hc_referent_offset * x + header; | |
| 3046 java_lang_ref_Reference::queue_offset = java_lang_ref_Reference::hc_queue_offset * x + header; | |
| 3047 java_lang_ref_Reference::next_offset = java_lang_ref_Reference::hc_next_offset * x + header; | |
| 3048 java_lang_ref_Reference::discovered_offset = java_lang_ref_Reference::hc_discovered_offset * x + header; | |
| 3049 java_lang_ref_Reference::static_lock_offset = java_lang_ref_Reference::hc_static_lock_offset * x; | |
| 3050 java_lang_ref_Reference::static_pending_offset = java_lang_ref_Reference::hc_static_pending_offset * x; | |
| 3051 // Artificial fields for java_lang_ref_Reference | |
| 3052 // The first field is for the discovered field added in 1.4 | |
| 3053 java_lang_ref_Reference::number_of_fake_oop_fields = 1; | |
| 3054 | |
| 3055 // java_lang_ref_SoftReference Class | |
|
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3056 java_lang_ref_SoftReference::timestamp_offset = align_size_up((java_lang_ref_SoftReference::hc_timestamp_offset * x + header), BytesPerLong); |
| 0 | 3057 // Don't multiply static fields because they are always in wordSize units |
| 3058 java_lang_ref_SoftReference::static_clock_offset = java_lang_ref_SoftReference::hc_static_clock_offset * x; | |
| 3059 | |
| 3060 // java_lang_ClassLoader | |
| 3061 java_lang_ClassLoader::parent_offset = java_lang_ClassLoader::hc_parent_offset * x + header; | |
| 3062 | |
| 3063 // java_lang_System | |
| 3064 java_lang_System::static_in_offset = java_lang_System::hc_static_in_offset * x; | |
| 3065 java_lang_System::static_out_offset = java_lang_System::hc_static_out_offset * x; | |
| 3066 java_lang_System::static_err_offset = java_lang_System::hc_static_err_offset * x; | |
| 3067 | |
| 3068 // java_lang_StackTraceElement | |
| 3069 java_lang_StackTraceElement::declaringClass_offset = java_lang_StackTraceElement::hc_declaringClass_offset * x + header; | |
| 3070 java_lang_StackTraceElement::methodName_offset = java_lang_StackTraceElement::hc_methodName_offset * x + header; | |
| 3071 java_lang_StackTraceElement::fileName_offset = java_lang_StackTraceElement::hc_fileName_offset * x + header; | |
| 3072 java_lang_StackTraceElement::lineNumber_offset = java_lang_StackTraceElement::hc_lineNumber_offset * x + header; | |
| 3073 java_lang_AssertionStatusDirectives::classes_offset = java_lang_AssertionStatusDirectives::hc_classes_offset * x + header; | |
| 3074 java_lang_AssertionStatusDirectives::classEnabled_offset = java_lang_AssertionStatusDirectives::hc_classEnabled_offset * x + header; | |
| 3075 java_lang_AssertionStatusDirectives::packages_offset = java_lang_AssertionStatusDirectives::hc_packages_offset * x + header; | |
| 3076 java_lang_AssertionStatusDirectives::packageEnabled_offset = java_lang_AssertionStatusDirectives::hc_packageEnabled_offset * x + header; | |
| 3077 java_lang_AssertionStatusDirectives::deflt_offset = java_lang_AssertionStatusDirectives::hc_deflt_offset * x + header; | |
| 3078 | |
| 3079 } | |
| 3080 | |
| 3081 | |
| 3082 // Compute non-hard-coded field offsets of all the classes in this file | |
| 3083 void JavaClasses::compute_offsets() { | |
| 3938 | 3084 // java_lang_Class::compute_offsets was called earlier in bootstrap |
| 3085 java_lang_ClassLoader::compute_offsets(); | |
| 0 | 3086 java_lang_Thread::compute_offsets(); |
| 3087 java_lang_ThreadGroup::compute_offsets(); | |
|
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3088 if (EnableInvokeDynamic) { |
|
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3089 java_lang_invoke_MethodHandle::compute_offsets(); |
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3090 java_lang_invoke_MemberName::compute_offsets(); |
|
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3091 java_lang_invoke_DirectMethodHandle::compute_offsets(); |
|
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3092 java_lang_invoke_BoundMethodHandle::compute_offsets(); |
|
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|
3093 java_lang_invoke_AdapterMethodHandle::compute_offsets(); |
|
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|
3094 java_lang_invoke_MethodType::compute_offsets(); |
|
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|
3095 java_lang_invoke_MethodTypeForm::compute_offsets(); |
|
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|
3096 java_lang_invoke_CallSite::compute_offsets(); |
|
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|
3097 java_lang_invoke_CountingMethodHandle::compute_offsets(); |
|
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|
3098 } |
| 0 | 3099 java_security_AccessControlContext::compute_offsets(); |
| 3100 // Initialize reflection classes. The layouts of these classes | |
| 3101 // changed with the new reflection implementation in JDK 1.4, and | |
| 3102 // since the Universe doesn't know what JDK version it is until this | |
| 3103 // point we defer computation of these offsets until now. | |
| 3104 java_lang_reflect_AccessibleObject::compute_offsets(); | |
| 3105 java_lang_reflect_Method::compute_offsets(); | |
| 3106 java_lang_reflect_Constructor::compute_offsets(); | |
| 3107 java_lang_reflect_Field::compute_offsets(); | |
| 3108 if (JDK_Version::is_gte_jdk14x_version()) { | |
| 3109 java_nio_Buffer::compute_offsets(); | |
| 3110 } | |
| 3111 if (JDK_Version::is_gte_jdk15x_version()) { | |
| 3112 sun_reflect_ConstantPool::compute_offsets(); | |
| 3113 sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets(); | |
| 3114 } | |
| 3115 sun_misc_AtomicLongCSImpl::compute_offsets(); | |
| 710 | 3116 |
| 3117 // generated interpreter code wants to know about the offsets we just computed: | |
| 3118 AbstractAssembler::update_delayed_values(); | |
| 0 | 3119 } |
| 3120 | |
| 3121 #ifndef PRODUCT | |
| 3122 | |
| 3123 // These functions exist to assert the validity of hard-coded field offsets to guard | |
| 3124 // against changes in the class files | |
| 3125 | |
| 3126 bool JavaClasses::check_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
| 3127 EXCEPTION_MARK; | |
| 3128 fieldDescriptor fd; | |
|
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3129 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
| 0 | 3130 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
| 3131 instanceKlassHandle h_klass (THREAD, k); | |
|
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3132 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
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3133 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
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3134 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
| 0 | 3135 tty->print_cr("Nonstatic field %s.%s not found", klass_name, field_name); |
| 3136 return false; | |
| 3137 } | |
| 3138 if (fd.is_static()) { | |
| 3139 tty->print_cr("Nonstatic field %s.%s appears to be static", klass_name, field_name); | |
| 3140 return false; | |
| 3141 } | |
| 3142 if (fd.offset() == hardcoded_offset ) { | |
| 3143 return true; | |
| 3144 } else { | |
| 3145 tty->print_cr("Offset of nonstatic field %s.%s is hardcoded as %d but should really be %d.", | |
| 3146 klass_name, field_name, hardcoded_offset, fd.offset()); | |
| 3147 return false; | |
| 3148 } | |
| 3149 } | |
| 3150 | |
| 3151 | |
| 3152 bool JavaClasses::check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
| 3153 EXCEPTION_MARK; | |
| 3154 fieldDescriptor fd; | |
|
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3155 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
| 0 | 3156 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
| 3157 instanceKlassHandle h_klass (THREAD, k); | |
|
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3158 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
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3159 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
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3160 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
| 0 | 3161 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
| 3162 return false; | |
| 3163 } | |
| 3164 if (!fd.is_static()) { | |
| 3165 tty->print_cr("Static field %s.%s appears to be nonstatic", klass_name, field_name); | |
| 3166 return false; | |
| 3167 } | |
|
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3168 if (fd.offset() == hardcoded_offset + instanceMirrorKlass::offset_of_static_fields()) { |
| 0 | 3169 return true; |
| 3170 } else { | |
|
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3171 tty->print_cr("Offset of static field %s.%s is hardcoded as %d but should really be %d.", klass_name, field_name, hardcoded_offset, fd.offset() - instanceMirrorKlass::offset_of_static_fields()); |
| 0 | 3172 return false; |
| 3173 } | |
| 3174 } | |
| 3175 | |
| 3176 | |
|
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3177 bool JavaClasses::check_constant(const char *klass_name, int hardcoded_constant, const char *field_name, const char* field_sig) { |
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3178 EXCEPTION_MARK; |
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3179 fieldDescriptor fd; |
|
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3180 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
|
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3181 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
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3182 instanceKlassHandle h_klass (THREAD, k); |
|
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3183 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
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3184 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
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3185 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
|
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3186 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
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3187 return false; |
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3188 } |
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3189 if (!fd.is_static() || !fd.has_initial_value()) { |
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3190 tty->print_cr("Static field %s.%s appears to be non-constant", klass_name, field_name); |
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3191 return false; |
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3192 } |
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3193 if (!fd.initial_value_tag().is_int()) { |
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3194 tty->print_cr("Static field %s.%s is not an int", klass_name, field_name); |
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3195 return false; |
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3196 } |
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3197 jint field_value = fd.int_initial_value(); |
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3198 if (field_value == hardcoded_constant) { |
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3199 return true; |
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3200 } else { |
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3201 tty->print_cr("Constant value of static field %s.%s is hardcoded as %d but should really be %d.", klass_name, field_name, hardcoded_constant, field_value); |
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3202 return false; |
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3203 } |
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3204 } |
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3205 |
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3206 |
| 0 | 3207 // Check the hard-coded field offsets of all the classes in this file |
| 3208 | |
| 3209 void JavaClasses::check_offsets() { | |
| 3210 bool valid = true; | |
| 3211 | |
| 3212 #define CHECK_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ | |
| 3213 valid &= check_offset(klass_name, cpp_klass_name :: field_name ## _offset, #field_name, field_sig) | |
| 3214 | |
|
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3215 #define CHECK_LONG_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
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3216 valid &= check_offset(klass_name, cpp_klass_name :: long_ ## field_name ## _offset, #field_name, field_sig) |
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3217 |
| 0 | 3218 #define CHECK_STATIC_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
| 3219 valid &= check_static_offset(klass_name, cpp_klass_name :: static_ ## field_name ## _offset, #field_name, field_sig) | |
| 3220 | |
|
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3221 #define CHECK_CONSTANT(klass_name, cpp_klass_name, field_name, field_sig) \ |
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3222 valid &= check_constant(klass_name, cpp_klass_name :: field_name, #field_name, field_sig) |
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3223 |
| 0 | 3224 // java.lang.String |
| 3225 | |
| 3226 CHECK_OFFSET("java/lang/String", java_lang_String, value, "[C"); | |
| 6057 | 3227 if (java_lang_String::has_offset_field()) { |
| 3228 CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I"); | |
| 3229 CHECK_OFFSET("java/lang/String", java_lang_String, count, "I"); | |
| 3230 } | |
| 3231 if (java_lang_String::has_hash_field()) { | |
| 3232 CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I"); | |
| 3233 } | |
| 0 | 3234 |
| 3235 // java.lang.Class | |
| 3236 | |
| 3237 // Fake fields | |
| 3238 // CHECK_OFFSET("java/lang/Class", java_lang_Class, klass); // %%% this needs to be checked | |
| 3239 // CHECK_OFFSET("java/lang/Class", java_lang_Class, array_klass); // %%% this needs to be checked | |
| 3240 // CHECK_OFFSET("java/lang/Class", java_lang_Class, resolved_constructor); // %%% this needs to be checked | |
| 3241 | |
| 3242 // java.lang.Throwable | |
| 3243 | |
| 3244 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, backtrace, "Ljava/lang/Object;"); | |
| 3245 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, detailMessage, "Ljava/lang/String;"); | |
| 3246 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, cause, "Ljava/lang/Throwable;"); | |
| 3247 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, stackTrace, "[Ljava/lang/StackTraceElement;"); | |
| 3248 | |
| 3249 // Boxed primitive objects (java_lang_boxing_object) | |
| 3250 | |
| 3251 CHECK_OFFSET("java/lang/Boolean", java_lang_boxing_object, value, "Z"); | |
| 3252 CHECK_OFFSET("java/lang/Character", java_lang_boxing_object, value, "C"); | |
| 3253 CHECK_OFFSET("java/lang/Float", java_lang_boxing_object, value, "F"); | |
|
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3254 CHECK_LONG_OFFSET("java/lang/Double", java_lang_boxing_object, value, "D"); |
| 0 | 3255 CHECK_OFFSET("java/lang/Byte", java_lang_boxing_object, value, "B"); |
| 3256 CHECK_OFFSET("java/lang/Short", java_lang_boxing_object, value, "S"); | |
| 3257 CHECK_OFFSET("java/lang/Integer", java_lang_boxing_object, value, "I"); | |
|
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3258 CHECK_LONG_OFFSET("java/lang/Long", java_lang_boxing_object, value, "J"); |
| 0 | 3259 |
| 3260 // java.lang.ClassLoader | |
| 3261 | |
| 3262 CHECK_OFFSET("java/lang/ClassLoader", java_lang_ClassLoader, parent, "Ljava/lang/ClassLoader;"); | |
| 3263 | |
| 3264 // java.lang.System | |
| 3265 | |
| 3266 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, in, "Ljava/io/InputStream;"); | |
| 3267 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, out, "Ljava/io/PrintStream;"); | |
| 3268 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, err, "Ljava/io/PrintStream;"); | |
| 3269 | |
| 3270 // java.lang.StackTraceElement | |
| 3271 | |
| 3272 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClass, "Ljava/lang/String;"); | |
| 3273 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, methodName, "Ljava/lang/String;"); | |
| 3274 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, fileName, "Ljava/lang/String;"); | |
| 3275 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, lineNumber, "I"); | |
| 3276 | |
| 3277 // java.lang.ref.Reference | |
| 3278 | |
| 3279 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, referent, "Ljava/lang/Object;"); | |
| 3280 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, queue, "Ljava/lang/ref/ReferenceQueue;"); | |
| 3281 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, next, "Ljava/lang/ref/Reference;"); | |
| 3282 // Fake field | |
| 3283 //CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, discovered, "Ljava/lang/ref/Reference;"); | |
| 3284 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, lock, "Ljava/lang/ref/Reference$Lock;"); | |
| 3285 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, pending, "Ljava/lang/ref/Reference;"); | |
| 3286 | |
| 3287 // java.lang.ref.SoftReference | |
| 3288 | |
| 3289 CHECK_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, timestamp, "J"); | |
| 3290 CHECK_STATIC_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, clock, "J"); | |
| 3291 | |
| 3292 // java.lang.AssertionStatusDirectives | |
| 3293 // | |
| 3294 // The CheckAssertionStatusDirectives boolean can be removed from here and | |
| 3295 // globals.hpp after the AssertionStatusDirectives class has been integrated | |
| 3296 // into merlin "for some time." Without it, the vm will fail with early | |
| 3297 // merlin builds. | |
| 3298 | |
| 3299 if (CheckAssertionStatusDirectives && JDK_Version::is_gte_jdk14x_version()) { | |
| 3300 const char* nm = "java/lang/AssertionStatusDirectives"; | |
| 3301 const char* sig = "[Ljava/lang/String;"; | |
| 3302 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classes, sig); | |
| 3303 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classEnabled, "[Z"); | |
| 3304 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packages, sig); | |
| 3305 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packageEnabled, "[Z"); | |
| 3306 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, deflt, "Z"); | |
| 3307 } | |
| 3308 | |
| 3309 if (!valid) vm_exit_during_initialization("Hard-coded field offset verification failed"); | |
| 3310 } | |
| 3311 | |
| 3312 #endif // PRODUCT | |
| 3313 | |
| 3938 | 3314 int InjectedField::compute_offset() { |
| 3315 klassOop klass_oop = klass(); | |
| 3316 for (AllFieldStream fs(instanceKlass::cast(klass_oop)); !fs.done(); fs.next()) { | |
| 3317 if (!may_be_java && !fs.access_flags().is_internal()) { | |
| 3318 // Only look at injected fields | |
| 3319 continue; | |
| 3320 } | |
| 3321 if (fs.name() == name() && fs.signature() == signature()) { | |
| 3322 return fs.offset(); | |
| 3323 } | |
| 3324 } | |
| 3325 ResourceMark rm; | |
| 3326 tty->print_cr("Invalid layout of %s at %s", instanceKlass::cast(klass_oop)->external_name(), name()->as_C_string()); | |
| 3327 fatal("Invalid layout of preloaded class"); | |
| 3328 return -1; | |
| 3329 } | |
| 3330 | |
| 0 | 3331 void javaClasses_init() { |
| 3332 JavaClasses::compute_offsets(); | |
| 3333 JavaClasses::check_offsets(); | |
| 3334 FilteredFieldsMap::initialize(); // must be done after computing offsets. | |
| 3335 } |