Mercurial > hg > truffle
annotate src/share/vm/classfile/javaClasses.cpp @ 3945:8ed53447f690
Merge
| author | iveresov |
|---|---|
| date | Thu, 15 Sep 2011 12:44:09 -0700 |
| parents | f94227b6117b e6b1331a51d2 |
| children | f08d439fab8c |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2011, 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" |
| 26 #include "classfile/javaClasses.hpp" | |
| 27 #include "classfile/symbolTable.hpp" | |
| 28 #include "classfile/vmSymbols.hpp" | |
| 29 #include "code/debugInfo.hpp" | |
| 30 #include "code/pcDesc.hpp" | |
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31 #include "compiler/compilerOracle.hpp" |
| 1972 | 32 #include "interpreter/interpreter.hpp" |
| 33 #include "memory/oopFactory.hpp" | |
| 34 #include "memory/resourceArea.hpp" | |
| 35 #include "memory/universe.inline.hpp" | |
| 3938 | 36 #include "oops/fieldStreams.hpp" |
| 1972 | 37 #include "oops/instanceKlass.hpp" |
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38 #include "oops/instanceMirrorKlass.hpp" |
| 1972 | 39 #include "oops/klass.hpp" |
| 40 #include "oops/klassOop.hpp" | |
| 41 #include "oops/methodOop.hpp" | |
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42 #include "oops/symbol.hpp" |
| 1972 | 43 #include "oops/typeArrayOop.hpp" |
| 44 #include "runtime/fieldDescriptor.hpp" | |
| 45 #include "runtime/handles.inline.hpp" | |
| 46 #include "runtime/interfaceSupport.hpp" | |
| 47 #include "runtime/java.hpp" | |
| 48 #include "runtime/javaCalls.hpp" | |
| 49 #include "runtime/safepoint.hpp" | |
| 50 #include "runtime/vframe.hpp" | |
| 51 #include "utilities/preserveException.hpp" | |
| 52 #ifdef TARGET_OS_FAMILY_linux | |
| 53 # include "thread_linux.inline.hpp" | |
| 54 #endif | |
| 55 #ifdef TARGET_OS_FAMILY_solaris | |
| 56 # include "thread_solaris.inline.hpp" | |
| 57 #endif | |
| 58 #ifdef TARGET_OS_FAMILY_windows | |
| 59 # include "thread_windows.inline.hpp" | |
| 60 #endif | |
| 0 | 61 |
| 3938 | 62 #define INJECTED_FIELD_COMPUTE_OFFSET(klass, name, signature, may_be_java) \ |
| 63 klass::_##name##_offset = JavaClasses::compute_injected_offset(JavaClasses::klass##_##name##_enum); | |
| 64 | |
| 65 #define DECLARE_INJECTED_FIELD(klass, name, signature, may_be_java) \ | |
| 66 { SystemDictionary::WK_KLASS_ENUM_NAME(klass), vmSymbols::VM_SYMBOL_ENUM_NAME(name##_name), vmSymbols::VM_SYMBOL_ENUM_NAME(signature), may_be_java }, | |
| 67 | |
| 68 InjectedField JavaClasses::_injected_fields[] = { | |
| 69 ALL_INJECTED_FIELDS(DECLARE_INJECTED_FIELD) | |
| 70 }; | |
| 71 | |
| 72 int JavaClasses::compute_injected_offset(InjectedFieldID id) { | |
| 73 return _injected_fields[id].compute_offset(); | |
| 74 } | |
| 75 | |
| 76 | |
| 77 InjectedField* JavaClasses::get_injected(Symbol* class_name, int* field_count) { | |
| 78 *field_count = 0; | |
| 79 | |
| 80 vmSymbols::SID sid = vmSymbols::find_sid(class_name); | |
| 81 if (sid == vmSymbols::NO_SID) { | |
| 82 // Only well known classes can inject fields | |
| 83 return NULL; | |
| 84 } | |
| 85 | |
| 86 int count = 0; | |
| 87 int start = -1; | |
| 88 | |
| 89 #define LOOKUP_INJECTED_FIELD(klass, name, signature, may_be_java) \ | |
| 90 if (sid == vmSymbols::VM_SYMBOL_ENUM_NAME(klass)) { \ | |
| 91 count++; \ | |
| 92 if (start == -1) start = klass##_##name##_enum; \ | |
| 93 } | |
| 94 ALL_INJECTED_FIELDS(LOOKUP_INJECTED_FIELD); | |
| 95 #undef LOOKUP_INJECTED_FIELD | |
| 96 | |
| 97 if (start != -1) { | |
| 98 *field_count = count; | |
| 99 return _injected_fields + start; | |
| 100 } | |
| 101 return NULL; | |
| 102 } | |
| 103 | |
| 104 | |
| 710 | 105 static bool find_field(instanceKlass* ik, |
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106 Symbol* name_symbol, Symbol* signature_symbol, |
| 710 | 107 fieldDescriptor* fd, |
| 108 bool allow_super = false) { | |
| 109 if (allow_super) | |
| 110 return ik->find_field(name_symbol, signature_symbol, fd) != NULL; | |
| 111 else | |
| 112 return ik->find_local_field(name_symbol, signature_symbol, fd); | |
| 113 } | |
| 114 | |
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115 // Helpful routine for computing field offsets at run time rather than hardcoding them |
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116 static void |
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117 compute_offset(int &dest_offset, |
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118 klassOop klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
| 710 | 119 bool allow_super = false) { |
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120 fieldDescriptor fd; |
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121 instanceKlass* ik = instanceKlass::cast(klass_oop); |
| 710 | 122 if (!find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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123 ResourceMark rm; |
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124 tty->print_cr("Invalid layout of %s at %s", ik->external_name(), name_symbol->as_C_string()); |
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125 fatal("Invalid layout of preloaded class"); |
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126 } |
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127 dest_offset = fd.offset(); |
| 0 | 128 } |
| 129 | |
| 130 // Same as above but for "optional" offsets that might not be present in certain JDK versions | |
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131 static void |
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132 compute_optional_offset(int& dest_offset, |
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133 klassOop klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
| 710 | 134 bool allow_super = false) { |
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135 fieldDescriptor fd; |
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136 instanceKlass* ik = instanceKlass::cast(klass_oop); |
| 710 | 137 if (find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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138 dest_offset = fd.offset(); |
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139 } |
| 0 | 140 } |
| 141 | |
| 710 | 142 |
| 0 | 143 Handle java_lang_String::basic_create(int length, bool tenured, TRAPS) { |
| 144 // Create the String object first, so there's a chance that the String | |
| 145 // and the char array it points to end up in the same cache line. | |
| 146 oop obj; | |
| 147 if (tenured) { | |
| 1142 | 148 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_permanent_instance(CHECK_NH); |
| 0 | 149 } else { |
| 1142 | 150 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_instance(CHECK_NH); |
| 0 | 151 } |
| 152 | |
| 153 // Create the char array. The String object must be handlized here | |
| 154 // because GC can happen as a result of the allocation attempt. | |
| 155 Handle h_obj(THREAD, obj); | |
| 156 typeArrayOop buffer; | |
| 157 if (tenured) { | |
| 158 buffer = oopFactory::new_permanent_charArray(length, CHECK_NH); | |
| 159 } else { | |
| 160 buffer = oopFactory::new_charArray(length, CHECK_NH); | |
| 161 } | |
| 162 | |
| 163 // Point the String at the char array | |
| 164 obj = h_obj(); | |
| 165 set_value(obj, buffer); | |
| 166 // No need to zero the offset, allocation zero'ed the entire String object | |
| 167 assert(offset(obj) == 0, "initial String offset should be zero"); | |
| 168 //set_offset(obj, 0); | |
| 169 set_count(obj, length); | |
| 170 | |
| 171 return h_obj; | |
| 172 } | |
| 173 | |
| 174 Handle java_lang_String::basic_create_from_unicode(jchar* unicode, int length, bool tenured, TRAPS) { | |
| 175 Handle h_obj = basic_create(length, tenured, CHECK_NH); | |
| 176 typeArrayOop buffer = value(h_obj()); | |
| 177 for (int index = 0; index < length; index++) { | |
| 178 buffer->char_at_put(index, unicode[index]); | |
| 179 } | |
| 180 return h_obj; | |
| 181 } | |
| 182 | |
| 183 Handle java_lang_String::create_from_unicode(jchar* unicode, int length, TRAPS) { | |
| 184 return basic_create_from_unicode(unicode, length, false, CHECK_NH); | |
| 185 } | |
| 186 | |
| 187 Handle java_lang_String::create_tenured_from_unicode(jchar* unicode, int length, TRAPS) { | |
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188 return basic_create_from_unicode(unicode, length, JavaObjectsInPerm, CHECK_NH); |
| 0 | 189 } |
| 190 | |
| 191 oop java_lang_String::create_oop_from_unicode(jchar* unicode, int length, TRAPS) { | |
| 192 Handle h_obj = basic_create_from_unicode(unicode, length, false, CHECK_0); | |
| 193 return h_obj(); | |
| 194 } | |
| 195 | |
| 196 Handle java_lang_String::create_from_str(const char* utf8_str, TRAPS) { | |
| 197 if (utf8_str == NULL) { | |
| 198 return Handle(); | |
| 199 } | |
| 200 int length = UTF8::unicode_length(utf8_str); | |
| 201 Handle h_obj = basic_create(length, false, CHECK_NH); | |
| 202 if (length > 0) { | |
| 203 UTF8::convert_to_unicode(utf8_str, value(h_obj())->char_at_addr(0), length); | |
| 204 } | |
| 205 return h_obj; | |
| 206 } | |
| 207 | |
| 208 oop java_lang_String::create_oop_from_str(const char* utf8_str, TRAPS) { | |
| 209 Handle h_obj = create_from_str(utf8_str, CHECK_0); | |
| 210 return h_obj(); | |
| 211 } | |
| 212 | |
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213 Handle java_lang_String::create_from_symbol(Symbol* symbol, TRAPS) { |
| 0 | 214 int length = UTF8::unicode_length((char*)symbol->bytes(), symbol->utf8_length()); |
| 215 Handle h_obj = basic_create(length, false, CHECK_NH); | |
| 216 if (length > 0) { | |
| 217 UTF8::convert_to_unicode((char*)symbol->bytes(), value(h_obj())->char_at_addr(0), length); | |
| 218 } | |
| 219 return h_obj; | |
| 220 } | |
| 221 | |
| 222 // Converts a C string to a Java String based on current encoding | |
| 223 Handle java_lang_String::create_from_platform_dependent_str(const char* str, TRAPS) { | |
| 224 assert(str != NULL, "bad arguments"); | |
| 225 | |
| 226 typedef jstring (*to_java_string_fn_t)(JNIEnv*, const char *); | |
| 227 static to_java_string_fn_t _to_java_string_fn = NULL; | |
| 228 | |
| 229 if (_to_java_string_fn == NULL) { | |
| 230 void *lib_handle = os::native_java_library(); | |
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231 _to_java_string_fn = CAST_TO_FN_PTR(to_java_string_fn_t, os::dll_lookup(lib_handle, "NewStringPlatform")); |
| 0 | 232 if (_to_java_string_fn == NULL) { |
| 233 fatal("NewStringPlatform missing"); | |
| 234 } | |
| 235 } | |
| 236 | |
| 237 jstring js = NULL; | |
| 238 { JavaThread* thread = (JavaThread*)THREAD; | |
| 239 assert(thread->is_Java_thread(), "must be java thread"); | |
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240 HandleMark hm(thread); |
| 0 | 241 ThreadToNativeFromVM ttn(thread); |
| 242 js = (_to_java_string_fn)(thread->jni_environment(), str); | |
| 243 } | |
| 244 return Handle(THREAD, JNIHandles::resolve(js)); | |
| 245 } | |
| 246 | |
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247 // Converts a Java String to a native C string that can be used for |
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248 // native OS calls. |
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249 char* java_lang_String::as_platform_dependent_str(Handle java_string, TRAPS) { |
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250 |
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251 typedef char* (*to_platform_string_fn_t)(JNIEnv*, jstring, bool*); |
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252 static to_platform_string_fn_t _to_platform_string_fn = NULL; |
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253 |
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254 if (_to_platform_string_fn == NULL) { |
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255 void *lib_handle = os::native_java_library(); |
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256 _to_platform_string_fn = CAST_TO_FN_PTR(to_platform_string_fn_t, os::dll_lookup(lib_handle, "GetStringPlatformChars")); |
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257 if (_to_platform_string_fn == NULL) { |
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258 fatal("GetStringPlatformChars missing"); |
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259 } |
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260 } |
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261 |
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262 char *native_platform_string; |
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263 { JavaThread* thread = (JavaThread*)THREAD; |
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264 assert(thread->is_Java_thread(), "must be java thread"); |
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265 JNIEnv *env = thread->jni_environment(); |
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266 jstring js = (jstring) JNIHandles::make_local(env, java_string()); |
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267 bool is_copy; |
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268 HandleMark hm(thread); |
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269 ThreadToNativeFromVM ttn(thread); |
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270 native_platform_string = (_to_platform_string_fn)(env, js, &is_copy); |
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271 assert(is_copy == JNI_TRUE, "is_copy value changed"); |
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272 JNIHandles::destroy_local(js); |
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273 } |
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274 return native_platform_string; |
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275 } |
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276 |
| 0 | 277 Handle java_lang_String::char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS) { |
| 278 oop obj = java_string(); | |
| 279 // Typical usage is to convert all '/' to '.' in string. | |
| 280 typeArrayOop value = java_lang_String::value(obj); | |
| 281 int offset = java_lang_String::offset(obj); | |
| 282 int length = java_lang_String::length(obj); | |
| 283 | |
| 284 // First check if any from_char exist | |
| 285 int index; // Declared outside, used later | |
| 286 for (index = 0; index < length; index++) { | |
| 287 if (value->char_at(index + offset) == from_char) { | |
| 288 break; | |
| 289 } | |
| 290 } | |
| 291 if (index == length) { | |
| 292 // No from_char, so do not copy. | |
| 293 return java_string; | |
| 294 } | |
| 295 | |
| 296 // Create new UNICODE buffer. Must handlize value because GC | |
| 297 // may happen during String and char array creation. | |
| 298 typeArrayHandle h_value(THREAD, value); | |
| 299 Handle string = basic_create(length, false, CHECK_NH); | |
| 300 | |
| 301 typeArrayOop from_buffer = h_value(); | |
| 302 typeArrayOop to_buffer = java_lang_String::value(string()); | |
| 303 | |
| 304 // Copy contents | |
| 305 for (index = 0; index < length; index++) { | |
| 306 jchar c = from_buffer->char_at(index + offset); | |
| 307 if (c == from_char) { | |
| 308 c = to_char; | |
| 309 } | |
| 310 to_buffer->char_at_put(index, c); | |
| 311 } | |
| 312 return string; | |
| 313 } | |
| 314 | |
| 315 jchar* java_lang_String::as_unicode_string(oop java_string, int& length) { | |
| 316 typeArrayOop value = java_lang_String::value(java_string); | |
| 317 int offset = java_lang_String::offset(java_string); | |
| 318 length = java_lang_String::length(java_string); | |
| 319 | |
| 320 jchar* result = NEW_RESOURCE_ARRAY(jchar, length); | |
| 321 for (int index = 0; index < length; index++) { | |
| 322 result[index] = value->char_at(index + offset); | |
| 323 } | |
| 324 return result; | |
| 325 } | |
| 326 | |
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327 unsigned int java_lang_String::hash_string(oop java_string) { |
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328 typeArrayOop value = java_lang_String::value(java_string); |
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329 int offset = java_lang_String::offset(java_string); |
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330 int length = java_lang_String::length(java_string); |
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331 |
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332 if (length == 0) return 0; |
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333 return hash_string(value->char_at_addr(offset), length); |
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334 } |
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335 |
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336 Symbol* java_lang_String::as_symbol(Handle java_string, TRAPS) { |
| 0 | 337 oop obj = java_string(); |
| 338 typeArrayOop value = java_lang_String::value(obj); | |
| 339 int offset = java_lang_String::offset(obj); | |
| 340 int length = java_lang_String::length(obj); | |
|
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341 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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342 Symbol* sym = SymbolTable::lookup_unicode(base, length, THREAD); |
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343 return sym; |
| 0 | 344 } |
| 345 | |
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346 Symbol* java_lang_String::as_symbol_or_null(oop java_string) { |
|
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347 typeArrayOop value = java_lang_String::value(java_string); |
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348 int offset = java_lang_String::offset(java_string); |
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349 int length = java_lang_String::length(java_string); |
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350 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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351 return SymbolTable::probe_unicode(base, length); |
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352 } |
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353 |
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354 |
| 0 | 355 int java_lang_String::utf8_length(oop java_string) { |
| 356 typeArrayOop value = java_lang_String::value(java_string); | |
| 357 int offset = java_lang_String::offset(java_string); | |
| 358 int length = java_lang_String::length(java_string); | |
| 359 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
| 360 return UNICODE::utf8_length(position, length); | |
| 361 } | |
| 362 | |
| 363 char* java_lang_String::as_utf8_string(oop java_string) { | |
| 364 typeArrayOop value = java_lang_String::value(java_string); | |
| 365 int offset = java_lang_String::offset(java_string); | |
| 366 int length = java_lang_String::length(java_string); | |
| 367 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
| 368 return UNICODE::as_utf8(position, length); | |
| 369 } | |
| 370 | |
|
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371 char* java_lang_String::as_utf8_string(oop java_string, char* buf, int buflen) { |
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372 typeArrayOop value = java_lang_String::value(java_string); |
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373 int offset = java_lang_String::offset(java_string); |
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374 int length = java_lang_String::length(java_string); |
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375 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); |
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376 return UNICODE::as_utf8(position, length, buf, buflen); |
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377 } |
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378 |
| 0 | 379 char* java_lang_String::as_utf8_string(oop java_string, int start, int len) { |
| 380 typeArrayOop value = java_lang_String::value(java_string); | |
| 381 int offset = java_lang_String::offset(java_string); | |
| 382 int length = java_lang_String::length(java_string); | |
| 383 assert(start + len <= length, "just checking"); | |
| 384 jchar* position = value->char_at_addr(offset + start); | |
| 385 return UNICODE::as_utf8(position, len); | |
| 386 } | |
| 387 | |
| 388 bool java_lang_String::equals(oop java_string, jchar* chars, int len) { | |
| 389 assert(SharedSkipVerify || | |
| 1142 | 390 java_string->klass() == SystemDictionary::String_klass(), |
| 0 | 391 "must be java_string"); |
| 392 typeArrayOop value = java_lang_String::value(java_string); | |
| 393 int offset = java_lang_String::offset(java_string); | |
| 394 int length = java_lang_String::length(java_string); | |
| 395 if (length != len) { | |
| 396 return false; | |
| 397 } | |
| 398 for (int i = 0; i < len; i++) { | |
| 399 if (value->char_at(i + offset) != chars[i]) { | |
| 400 return false; | |
| 401 } | |
| 402 } | |
| 403 return true; | |
| 404 } | |
| 405 | |
| 406 void java_lang_String::print(Handle java_string, outputStream* st) { | |
| 407 oop obj = java_string(); | |
| 1142 | 408 assert(obj->klass() == SystemDictionary::String_klass(), "must be java_string"); |
| 0 | 409 typeArrayOop value = java_lang_String::value(obj); |
| 410 int offset = java_lang_String::offset(obj); | |
| 411 int length = java_lang_String::length(obj); | |
| 412 | |
| 413 int end = MIN2(length, 100); | |
| 414 if (value == NULL) { | |
| 415 // This can happen if, e.g., printing a String | |
| 416 // object before its initializer has been called | |
| 417 st->print_cr("NULL"); | |
| 418 } else { | |
| 419 st->print("\""); | |
| 420 for (int index = 0; index < length; index++) { | |
| 421 st->print("%c", value->char_at(index + offset)); | |
| 422 } | |
| 423 st->print("\""); | |
| 424 } | |
| 425 } | |
| 426 | |
|
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427 static void initialize_static_field(fieldDescriptor* fd, TRAPS) { |
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428 Handle mirror (THREAD, fd->field_holder()->java_mirror()); |
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429 assert(mirror.not_null() && fd->is_static(), "just checking"); |
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430 if (fd->has_initial_value()) { |
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431 BasicType t = fd->field_type(); |
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432 switch (t) { |
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433 case T_BYTE: |
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434 mirror()->byte_field_put(fd->offset(), fd->int_initial_value()); |
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435 break; |
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436 case T_BOOLEAN: |
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437 mirror()->bool_field_put(fd->offset(), fd->int_initial_value()); |
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438 break; |
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439 case T_CHAR: |
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440 mirror()->char_field_put(fd->offset(), fd->int_initial_value()); |
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441 break; |
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442 case T_SHORT: |
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443 mirror()->short_field_put(fd->offset(), fd->int_initial_value()); |
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444 break; |
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445 case T_INT: |
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446 mirror()->int_field_put(fd->offset(), fd->int_initial_value()); |
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447 break; |
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448 case T_FLOAT: |
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449 mirror()->float_field_put(fd->offset(), fd->float_initial_value()); |
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450 break; |
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451 case T_DOUBLE: |
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452 mirror()->double_field_put(fd->offset(), fd->double_initial_value()); |
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453 break; |
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454 case T_LONG: |
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455 mirror()->long_field_put(fd->offset(), fd->long_initial_value()); |
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456 break; |
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457 case T_OBJECT: |
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458 { |
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459 #ifdef ASSERT |
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460 TempNewSymbol sym = SymbolTable::new_symbol("Ljava/lang/String;", CHECK); |
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461 assert(fd->signature() == sym, "just checking"); |
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462 #endif |
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463 oop string = fd->string_initial_value(CHECK); |
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464 mirror()->obj_field_put(fd->offset(), string); |
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465 } |
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466 break; |
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467 default: |
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468 THROW_MSG(vmSymbols::java_lang_ClassFormatError(), |
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469 "Illegal ConstantValue attribute in class file"); |
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470 } |
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471 } |
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472 } |
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473 |
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474 |
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475 void java_lang_Class::fixup_mirror(KlassHandle k, TRAPS) { |
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476 assert(instanceMirrorKlass::offset_of_static_fields() != 0, "must have been computed already"); |
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477 |
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478 if (k->oop_is_instance()) { |
| 3938 | 479 // During bootstrap, java.lang.Class wasn't loaded so static field |
| 480 // offsets were computed without the size added it. Go back and | |
| 481 // update all the static field offsets to included the size. | |
| 482 for (JavaFieldStream fs(instanceKlass::cast(k())); !fs.done(); fs.next()) { | |
| 483 if (fs.access_flags().is_static()) { | |
| 484 int real_offset = fs.offset() + instanceMirrorKlass::offset_of_static_fields(); | |
| 485 fs.set_offset(real_offset); | |
| 486 } | |
| 487 } | |
|
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488 } |
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489 create_mirror(k, CHECK); |
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490 } |
| 0 | 491 |
| 492 oop java_lang_Class::create_mirror(KlassHandle k, TRAPS) { | |
| 493 assert(k->java_mirror() == NULL, "should only assign mirror once"); | |
| 494 // Use this moment of initialization to cache modifier_flags also, | |
| 495 // to support Class.getModifiers(). Instance classes recalculate | |
| 496 // the cached flags after the class file is parsed, but before the | |
| 497 // class is put into the system dictionary. | |
| 498 int computed_modifiers = k->compute_modifier_flags(CHECK_0); | |
| 499 k->set_modifier_flags(computed_modifiers); | |
|
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500 if (SystemDictionary::Class_klass_loaded() && (k->oop_is_instance() || k->oop_is_javaArray())) { |
| 0 | 501 // Allocate mirror (java.lang.Class instance) |
|
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502 Handle mirror = instanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(k, CHECK_0); |
| 0 | 503 // Setup indirections |
| 3938 | 504 mirror->obj_field_put(_klass_offset, k()); |
| 0 | 505 k->set_java_mirror(mirror()); |
|
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506 |
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507 instanceMirrorKlass* mk = instanceMirrorKlass::cast(mirror->klass()); |
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508 java_lang_Class::set_oop_size(mirror(), mk->instance_size(k)); |
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509 java_lang_Class::set_static_oop_field_count(mirror(), mk->compute_static_oop_field_count(mirror())); |
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510 |
| 0 | 511 // It might also have a component mirror. This mirror must already exist. |
| 512 if (k->oop_is_javaArray()) { | |
| 513 Handle comp_mirror; | |
| 514 if (k->oop_is_typeArray()) { | |
| 515 BasicType type = typeArrayKlass::cast(k->as_klassOop())->element_type(); | |
| 516 comp_mirror = Universe::java_mirror(type); | |
| 517 assert(comp_mirror.not_null(), "must have primitive mirror"); | |
| 518 } else if (k->oop_is_objArray()) { | |
| 519 klassOop element_klass = objArrayKlass::cast(k->as_klassOop())->element_klass(); | |
| 520 if (element_klass != NULL | |
| 521 && (Klass::cast(element_klass)->oop_is_instance() || | |
| 522 Klass::cast(element_klass)->oop_is_javaArray())) { | |
| 523 comp_mirror = Klass::cast(element_klass)->java_mirror(); | |
| 524 assert(comp_mirror.not_null(), "must have element mirror"); | |
| 525 } | |
| 526 // else some object array internal to the VM, like systemObjArrayKlassObj | |
| 527 } | |
| 528 if (comp_mirror.not_null()) { | |
| 529 // Two-way link between the array klass and its component mirror: | |
| 530 arrayKlass::cast(k->as_klassOop())->set_component_mirror(comp_mirror()); | |
| 531 set_array_klass(comp_mirror(), k->as_klassOop()); | |
| 532 } | |
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533 } else if (k->oop_is_instance()) { |
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534 // Initialize static fields |
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535 instanceKlass::cast(k())->do_local_static_fields(&initialize_static_field, CHECK_NULL); |
| 0 | 536 } |
| 537 return mirror(); | |
| 538 } else { | |
| 539 return NULL; | |
| 540 } | |
| 541 } | |
| 542 | |
| 543 | |
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544 |
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545 int java_lang_Class::oop_size(oop java_class) { |
| 3938 | 546 assert(_oop_size_offset != 0, "must be set"); |
| 547 return java_class->int_field(_oop_size_offset); | |
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548 } |
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549 void java_lang_Class::set_oop_size(oop java_class, int size) { |
| 3938 | 550 assert(_oop_size_offset != 0, "must be set"); |
| 551 java_class->int_field_put(_oop_size_offset, size); | |
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552 } |
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553 int java_lang_Class::static_oop_field_count(oop java_class) { |
| 3938 | 554 assert(_static_oop_field_count_offset != 0, "must be set"); |
| 555 return java_class->int_field(_static_oop_field_count_offset); | |
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556 } |
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557 void java_lang_Class::set_static_oop_field_count(oop java_class, int size) { |
| 3938 | 558 assert(_static_oop_field_count_offset != 0, "must be set"); |
| 559 java_class->int_field_put(_static_oop_field_count_offset, size); | |
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560 } |
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561 |
| 0 | 562 oop java_lang_Class::create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS) { |
| 563 // This should be improved by adding a field at the Java level or by | |
| 564 // introducing a new VM klass (see comment in ClassFileParser) | |
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565 oop java_class = instanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance((oop)NULL, CHECK_0); |
| 0 | 566 if (type != T_VOID) { |
| 567 klassOop aklass = Universe::typeArrayKlassObj(type); | |
| 568 assert(aklass != NULL, "correct bootstrap"); | |
| 569 set_array_klass(java_class, aklass); | |
| 570 } | |
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571 instanceMirrorKlass* mk = instanceMirrorKlass::cast(SystemDictionary::Class_klass()); |
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572 java_lang_Class::set_oop_size(java_class, mk->instance_size(oop(NULL))); |
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573 java_lang_Class::set_static_oop_field_count(java_class, 0); |
| 0 | 574 return java_class; |
| 575 } | |
| 576 | |
| 577 | |
| 578 klassOop java_lang_Class::as_klassOop(oop java_class) { | |
| 579 //%note memory_2 | |
|
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580 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
| 3938 | 581 klassOop k = klassOop(java_class->obj_field(_klass_offset)); |
| 0 | 582 assert(k == NULL || k->is_klass(), "type check"); |
| 583 return k; | |
| 584 } | |
| 585 | |
| 586 | |
|
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587 void java_lang_Class::print_signature(oop java_class, outputStream* st) { |
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588 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
|
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589 Symbol* name = NULL; |
|
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590 bool is_instance = false; |
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591 if (is_primitive(java_class)) { |
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592 name = vmSymbols::type_signature(primitive_type(java_class)); |
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593 } else { |
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594 klassOop k = as_klassOop(java_class); |
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595 is_instance = Klass::cast(k)->oop_is_instance(); |
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596 name = Klass::cast(k)->name(); |
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597 } |
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598 if (name == NULL) { |
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599 st->print("<null>"); |
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600 return; |
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601 } |
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602 if (is_instance) st->print("L"); |
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603 st->write((char*) name->base(), (int) name->utf8_length()); |
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604 if (is_instance) st->print(";"); |
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605 } |
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606 |
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607 Symbol* java_lang_Class::as_signature(oop java_class, bool intern_if_not_found, TRAPS) { |
|
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608 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
|
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609 Symbol* name; |
|
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610 if (is_primitive(java_class)) { |
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611 name = vmSymbols::type_signature(primitive_type(java_class)); |
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612 // Because this can create a new symbol, the caller has to decrement |
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613 // the refcount, so make adjustment here and below for symbols returned |
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614 // that are not created or incremented due to a successful lookup. |
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615 name->increment_refcount(); |
|
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616 } else { |
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617 klassOop k = as_klassOop(java_class); |
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618 if (!Klass::cast(k)->oop_is_instance()) { |
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619 name = Klass::cast(k)->name(); |
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620 name->increment_refcount(); |
|
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621 } else { |
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622 ResourceMark rm; |
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623 const char* sigstr = Klass::cast(k)->signature_name(); |
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624 int siglen = (int) strlen(sigstr); |
|
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625 if (!intern_if_not_found) { |
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626 name = SymbolTable::probe(sigstr, siglen); |
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627 } else { |
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628 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
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629 } |
|
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630 } |
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631 } |
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632 return name; |
|
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633 } |
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634 |
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635 |
| 0 | 636 klassOop java_lang_Class::array_klass(oop java_class) { |
| 3938 | 637 klassOop k = klassOop(java_class->obj_field(_array_klass_offset)); |
| 0 | 638 assert(k == NULL || k->is_klass() && Klass::cast(k)->oop_is_javaArray(), "should be array klass"); |
| 639 return k; | |
| 640 } | |
| 641 | |
| 642 | |
| 643 void java_lang_Class::set_array_klass(oop java_class, klassOop klass) { | |
| 644 assert(klass->is_klass() && Klass::cast(klass)->oop_is_javaArray(), "should be array klass"); | |
| 3938 | 645 java_class->obj_field_put(_array_klass_offset, klass); |
| 0 | 646 } |
| 647 | |
| 648 | |
| 649 methodOop java_lang_Class::resolved_constructor(oop java_class) { | |
| 3938 | 650 oop constructor = java_class->obj_field(_resolved_constructor_offset); |
| 0 | 651 assert(constructor == NULL || constructor->is_method(), "should be method"); |
| 652 return methodOop(constructor); | |
| 653 } | |
| 654 | |
| 655 | |
| 656 void java_lang_Class::set_resolved_constructor(oop java_class, methodOop constructor) { | |
| 657 assert(constructor->is_method(), "should be method"); | |
| 3938 | 658 java_class->obj_field_put(_resolved_constructor_offset, constructor); |
| 0 | 659 } |
| 660 | |
| 661 | |
| 662 bool java_lang_Class::is_primitive(oop java_class) { | |
|
665
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663 // should assert: |
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664 //assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
| 3938 | 665 klassOop k = klassOop(java_class->obj_field(_klass_offset)); |
| 0 | 666 return k == NULL; |
| 667 } | |
| 668 | |
| 669 | |
| 670 BasicType java_lang_Class::primitive_type(oop java_class) { | |
| 671 assert(java_lang_Class::is_primitive(java_class), "just checking"); | |
| 3938 | 672 klassOop ak = klassOop(java_class->obj_field(_array_klass_offset)); |
| 0 | 673 BasicType type = T_VOID; |
| 674 if (ak != NULL) { | |
| 675 // Note: create_basic_type_mirror above initializes ak to a non-null value. | |
| 676 type = arrayKlass::cast(ak)->element_type(); | |
| 677 } else { | |
| 678 assert(java_class == Universe::void_mirror(), "only valid non-array primitive"); | |
| 679 } | |
| 680 assert(Universe::java_mirror(type) == java_class, "must be consistent"); | |
| 681 return type; | |
| 682 } | |
| 683 | |
|
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684 BasicType java_lang_Class::as_BasicType(oop java_class, klassOop* reference_klass) { |
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685 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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686 if (is_primitive(java_class)) { |
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687 if (reference_klass != NULL) |
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688 (*reference_klass) = NULL; |
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689 return primitive_type(java_class); |
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690 } else { |
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691 if (reference_klass != NULL) |
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692 (*reference_klass) = as_klassOop(java_class); |
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693 return T_OBJECT; |
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694 } |
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695 } |
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696 |
| 0 | 697 |
| 698 oop java_lang_Class::primitive_mirror(BasicType t) { | |
| 699 oop mirror = Universe::java_mirror(t); | |
| 1142 | 700 assert(mirror != NULL && mirror->is_a(SystemDictionary::Class_klass()), "must be a Class"); |
| 0 | 701 assert(java_lang_Class::is_primitive(mirror), "must be primitive"); |
| 702 return mirror; | |
| 703 } | |
| 704 | |
| 705 bool java_lang_Class::offsets_computed = false; | |
| 706 int java_lang_Class::classRedefinedCount_offset = -1; | |
| 707 | |
| 708 void java_lang_Class::compute_offsets() { | |
| 709 assert(!offsets_computed, "offsets should be initialized only once"); | |
| 710 offsets_computed = true; | |
| 711 | |
| 3938 | 712 klassOop klass_oop = SystemDictionary::Class_klass(); |
| 0 | 713 // The classRedefinedCount field is only present starting in 1.5, |
| 714 // so don't go fatal. | |
|
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715 compute_optional_offset(classRedefinedCount_offset, |
| 3938 | 716 klass_oop, vmSymbols::classRedefinedCount_name(), vmSymbols::int_signature()); |
| 717 | |
| 718 CLASS_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
| 0 | 719 } |
| 720 | |
| 721 int java_lang_Class::classRedefinedCount(oop the_class_mirror) { | |
| 722 if (!JDK_Version::is_gte_jdk15x_version() | |
| 723 || classRedefinedCount_offset == -1) { | |
| 724 // The classRedefinedCount field is only present starting in 1.5. | |
| 725 // If we don't have an offset for it then just return -1 as a marker. | |
| 726 return -1; | |
| 727 } | |
| 728 | |
| 729 return the_class_mirror->int_field(classRedefinedCount_offset); | |
| 730 } | |
| 731 | |
| 732 void java_lang_Class::set_classRedefinedCount(oop the_class_mirror, int value) { | |
| 733 if (!JDK_Version::is_gte_jdk15x_version() | |
| 734 || classRedefinedCount_offset == -1) { | |
| 735 // The classRedefinedCount field is only present starting in 1.5. | |
| 736 // If we don't have an offset for it then nothing to set. | |
| 737 return; | |
| 738 } | |
| 739 | |
| 740 the_class_mirror->int_field_put(classRedefinedCount_offset, value); | |
| 741 } | |
| 742 | |
| 743 | |
| 744 // Note: JDK1.1 and before had a privateInfo_offset field which was used for the | |
| 745 // platform thread structure, and a eetop offset which was used for thread | |
| 746 // local storage (and unused by the HotSpot VM). In JDK1.2 the two structures | |
| 747 // merged, so in the HotSpot VM we just use the eetop field for the thread | |
| 748 // instead of the privateInfo_offset. | |
| 749 // | |
| 750 // Note: The stackSize field is only present starting in 1.4. | |
| 751 | |
| 752 int java_lang_Thread::_name_offset = 0; | |
| 753 int java_lang_Thread::_group_offset = 0; | |
| 754 int java_lang_Thread::_contextClassLoader_offset = 0; | |
| 755 int java_lang_Thread::_inheritedAccessControlContext_offset = 0; | |
| 756 int java_lang_Thread::_priority_offset = 0; | |
| 757 int java_lang_Thread::_eetop_offset = 0; | |
| 758 int java_lang_Thread::_daemon_offset = 0; | |
| 759 int java_lang_Thread::_stillborn_offset = 0; | |
| 760 int java_lang_Thread::_stackSize_offset = 0; | |
| 761 int java_lang_Thread::_tid_offset = 0; | |
| 762 int java_lang_Thread::_thread_status_offset = 0; | |
| 763 int java_lang_Thread::_park_blocker_offset = 0; | |
| 764 int java_lang_Thread::_park_event_offset = 0 ; | |
| 765 | |
| 766 | |
| 767 void java_lang_Thread::compute_offsets() { | |
| 768 assert(_group_offset == 0, "offsets should be initialized only once"); | |
| 769 | |
| 1142 | 770 klassOop k = SystemDictionary::Thread_klass(); |
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771 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::char_array_signature()); |
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772 compute_offset(_group_offset, k, vmSymbols::group_name(), vmSymbols::threadgroup_signature()); |
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773 compute_offset(_contextClassLoader_offset, k, vmSymbols::contextClassLoader_name(), vmSymbols::classloader_signature()); |
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774 compute_offset(_inheritedAccessControlContext_offset, k, vmSymbols::inheritedAccessControlContext_name(), vmSymbols::accesscontrolcontext_signature()); |
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775 compute_offset(_priority_offset, k, vmSymbols::priority_name(), vmSymbols::int_signature()); |
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776 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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777 compute_offset(_eetop_offset, k, vmSymbols::eetop_name(), vmSymbols::long_signature()); |
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778 compute_offset(_stillborn_offset, k, vmSymbols::stillborn_name(), vmSymbols::bool_signature()); |
| 0 | 779 // The stackSize field is only present starting in 1.4, so don't go fatal. |
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780 compute_optional_offset(_stackSize_offset, k, vmSymbols::stackSize_name(), vmSymbols::long_signature()); |
| 0 | 781 // The tid and thread_status fields are only present starting in 1.5, so don't go fatal. |
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782 compute_optional_offset(_tid_offset, k, vmSymbols::thread_id_name(), vmSymbols::long_signature()); |
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783 compute_optional_offset(_thread_status_offset, k, vmSymbols::thread_status_name(), vmSymbols::int_signature()); |
| 0 | 784 // The parkBlocker field is only present starting in 1.6, so don't go fatal. |
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785 compute_optional_offset(_park_blocker_offset, k, vmSymbols::park_blocker_name(), vmSymbols::object_signature()); |
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786 compute_optional_offset(_park_event_offset, k, vmSymbols::park_event_name(), |
| 0 | 787 vmSymbols::long_signature()); |
| 788 } | |
| 789 | |
| 790 | |
| 791 JavaThread* java_lang_Thread::thread(oop java_thread) { | |
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792 return (JavaThread*)java_thread->address_field(_eetop_offset); |
| 0 | 793 } |
| 794 | |
| 795 | |
| 796 void java_lang_Thread::set_thread(oop java_thread, JavaThread* thread) { | |
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797 java_thread->address_field_put(_eetop_offset, (address)thread); |
| 0 | 798 } |
| 799 | |
| 800 | |
| 801 typeArrayOop java_lang_Thread::name(oop java_thread) { | |
| 802 oop name = java_thread->obj_field(_name_offset); | |
| 803 assert(name == NULL || (name->is_typeArray() && typeArrayKlass::cast(name->klass())->element_type() == T_CHAR), "just checking"); | |
| 804 return typeArrayOop(name); | |
| 805 } | |
| 806 | |
| 807 | |
| 808 void java_lang_Thread::set_name(oop java_thread, typeArrayOop name) { | |
| 809 assert(java_thread->obj_field(_name_offset) == NULL, "name should be NULL"); | |
| 810 java_thread->obj_field_put(_name_offset, name); | |
| 811 } | |
| 812 | |
| 813 | |
| 814 ThreadPriority java_lang_Thread::priority(oop java_thread) { | |
| 815 return (ThreadPriority)java_thread->int_field(_priority_offset); | |
| 816 } | |
| 817 | |
| 818 | |
| 819 void java_lang_Thread::set_priority(oop java_thread, ThreadPriority priority) { | |
| 820 java_thread->int_field_put(_priority_offset, priority); | |
| 821 } | |
| 822 | |
| 823 | |
| 824 oop java_lang_Thread::threadGroup(oop java_thread) { | |
| 825 return java_thread->obj_field(_group_offset); | |
| 826 } | |
| 827 | |
| 828 | |
| 829 bool java_lang_Thread::is_stillborn(oop java_thread) { | |
| 830 return java_thread->bool_field(_stillborn_offset) != 0; | |
| 831 } | |
| 832 | |
| 833 | |
| 834 // We never have reason to turn the stillborn bit off | |
| 835 void java_lang_Thread::set_stillborn(oop java_thread) { | |
| 836 java_thread->bool_field_put(_stillborn_offset, true); | |
| 837 } | |
| 838 | |
| 839 | |
| 840 bool java_lang_Thread::is_alive(oop java_thread) { | |
| 841 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
| 842 return (thr != NULL); | |
| 843 } | |
| 844 | |
| 845 | |
| 846 bool java_lang_Thread::is_daemon(oop java_thread) { | |
| 847 return java_thread->bool_field(_daemon_offset) != 0; | |
| 848 } | |
| 849 | |
| 850 | |
| 851 void java_lang_Thread::set_daemon(oop java_thread) { | |
| 852 java_thread->bool_field_put(_daemon_offset, true); | |
| 853 } | |
| 854 | |
| 855 oop java_lang_Thread::context_class_loader(oop java_thread) { | |
| 856 return java_thread->obj_field(_contextClassLoader_offset); | |
| 857 } | |
| 858 | |
| 859 oop java_lang_Thread::inherited_access_control_context(oop java_thread) { | |
| 860 return java_thread->obj_field(_inheritedAccessControlContext_offset); | |
| 861 } | |
| 862 | |
| 863 | |
| 864 jlong java_lang_Thread::stackSize(oop java_thread) { | |
| 865 // The stackSize field is only present starting in 1.4 | |
| 866 if (_stackSize_offset > 0) { | |
| 867 assert(JDK_Version::is_gte_jdk14x_version(), "sanity check"); | |
| 868 return java_thread->long_field(_stackSize_offset); | |
| 869 } else { | |
| 870 return 0; | |
| 871 } | |
| 872 } | |
| 873 | |
| 874 // Write the thread status value to threadStatus field in java.lang.Thread java class. | |
| 875 void java_lang_Thread::set_thread_status(oop java_thread, | |
| 876 java_lang_Thread::ThreadStatus status) { | |
| 877 assert(JavaThread::current()->thread_state() == _thread_in_vm, "Java Thread is not running in vm"); | |
| 878 // The threadStatus is only present starting in 1.5 | |
| 879 if (_thread_status_offset > 0) { | |
| 880 java_thread->int_field_put(_thread_status_offset, status); | |
| 881 } | |
| 882 } | |
| 883 | |
| 884 // Read thread status value from threadStatus field in java.lang.Thread java class. | |
| 885 java_lang_Thread::ThreadStatus java_lang_Thread::get_thread_status(oop java_thread) { | |
| 886 assert(Thread::current()->is_VM_thread() || | |
| 887 JavaThread::current()->thread_state() == _thread_in_vm, | |
| 888 "Java Thread is not running in vm"); | |
| 889 // The threadStatus is only present starting in 1.5 | |
| 890 if (_thread_status_offset > 0) { | |
| 891 return (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
| 892 } else { | |
| 893 // All we can easily figure out is if it is alive, but that is | |
| 894 // enough info for a valid unknown status. | |
| 895 // These aren't restricted to valid set ThreadStatus values, so | |
| 896 // use JVMTI values and cast. | |
| 897 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
| 898 if (thr == NULL) { | |
| 899 // the thread hasn't run yet or is in the process of exiting | |
| 900 return NEW; | |
| 901 } | |
| 902 return (java_lang_Thread::ThreadStatus)JVMTI_THREAD_STATE_ALIVE; | |
| 903 } | |
| 904 } | |
| 905 | |
| 906 | |
| 907 jlong java_lang_Thread::thread_id(oop java_thread) { | |
| 908 // The thread ID field is only present starting in 1.5 | |
| 909 if (_tid_offset > 0) { | |
| 910 return java_thread->long_field(_tid_offset); | |
| 911 } else { | |
| 912 return 0; | |
| 913 } | |
| 914 } | |
| 915 | |
| 916 oop java_lang_Thread::park_blocker(oop java_thread) { | |
| 242 | 917 assert(JDK_Version::current().supports_thread_park_blocker() && |
| 918 _park_blocker_offset != 0, "Must support parkBlocker field"); | |
| 0 | 919 |
| 920 if (_park_blocker_offset > 0) { | |
| 921 return java_thread->obj_field(_park_blocker_offset); | |
| 922 } | |
| 923 | |
| 924 return NULL; | |
| 925 } | |
| 926 | |
| 927 jlong java_lang_Thread::park_event(oop java_thread) { | |
| 928 if (_park_event_offset > 0) { | |
| 929 return java_thread->long_field(_park_event_offset); | |
| 930 } | |
| 931 return 0; | |
| 932 } | |
| 933 | |
| 934 bool java_lang_Thread::set_park_event(oop java_thread, jlong ptr) { | |
| 935 if (_park_event_offset > 0) { | |
| 936 java_thread->long_field_put(_park_event_offset, ptr); | |
| 937 return true; | |
| 938 } | |
| 939 return false; | |
| 940 } | |
| 941 | |
| 942 | |
| 943 const char* java_lang_Thread::thread_status_name(oop java_thread) { | |
| 944 assert(JDK_Version::is_gte_jdk15x_version() && _thread_status_offset != 0, "Must have thread status"); | |
| 945 ThreadStatus status = (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
| 946 switch (status) { | |
| 947 case NEW : return "NEW"; | |
| 948 case RUNNABLE : return "RUNNABLE"; | |
| 949 case SLEEPING : return "TIMED_WAITING (sleeping)"; | |
| 950 case IN_OBJECT_WAIT : return "WAITING (on object monitor)"; | |
| 951 case IN_OBJECT_WAIT_TIMED : return "TIMED_WAITING (on object monitor)"; | |
| 952 case PARKED : return "WAITING (parking)"; | |
| 953 case PARKED_TIMED : return "TIMED_WAITING (parking)"; | |
| 954 case BLOCKED_ON_MONITOR_ENTER : return "BLOCKED (on object monitor)"; | |
| 955 case TERMINATED : return "TERMINATED"; | |
| 956 default : return "UNKNOWN"; | |
| 957 }; | |
| 958 } | |
| 959 int java_lang_ThreadGroup::_parent_offset = 0; | |
| 960 int java_lang_ThreadGroup::_name_offset = 0; | |
| 961 int java_lang_ThreadGroup::_threads_offset = 0; | |
| 962 int java_lang_ThreadGroup::_groups_offset = 0; | |
| 963 int java_lang_ThreadGroup::_maxPriority_offset = 0; | |
| 964 int java_lang_ThreadGroup::_destroyed_offset = 0; | |
| 965 int java_lang_ThreadGroup::_daemon_offset = 0; | |
| 966 int java_lang_ThreadGroup::_vmAllowSuspension_offset = 0; | |
| 967 int java_lang_ThreadGroup::_nthreads_offset = 0; | |
| 968 int java_lang_ThreadGroup::_ngroups_offset = 0; | |
| 969 | |
| 970 oop java_lang_ThreadGroup::parent(oop java_thread_group) { | |
| 971 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 972 return java_thread_group->obj_field(_parent_offset); | |
| 973 } | |
| 974 | |
| 975 // ("name as oop" accessor is not necessary) | |
| 976 | |
| 977 typeArrayOop java_lang_ThreadGroup::name(oop java_thread_group) { | |
| 978 oop name = java_thread_group->obj_field(_name_offset); | |
| 979 // ThreadGroup.name can be null | |
| 980 return name == NULL ? (typeArrayOop)NULL : java_lang_String::value(name); | |
| 981 } | |
| 982 | |
| 983 int java_lang_ThreadGroup::nthreads(oop java_thread_group) { | |
| 984 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 985 return java_thread_group->int_field(_nthreads_offset); | |
| 986 } | |
| 987 | |
| 988 objArrayOop java_lang_ThreadGroup::threads(oop java_thread_group) { | |
| 989 oop threads = java_thread_group->obj_field(_threads_offset); | |
| 990 assert(threads != NULL, "threadgroups should have threads"); | |
| 991 assert(threads->is_objArray(), "just checking"); // Todo: Add better type checking code | |
| 992 return objArrayOop(threads); | |
| 993 } | |
| 994 | |
| 995 int java_lang_ThreadGroup::ngroups(oop java_thread_group) { | |
| 996 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 997 return java_thread_group->int_field(_ngroups_offset); | |
| 998 } | |
| 999 | |
| 1000 objArrayOop java_lang_ThreadGroup::groups(oop java_thread_group) { | |
| 1001 oop groups = java_thread_group->obj_field(_groups_offset); | |
| 1002 assert(groups == NULL || groups->is_objArray(), "just checking"); // Todo: Add better type checking code | |
| 1003 return objArrayOop(groups); | |
| 1004 } | |
| 1005 | |
| 1006 ThreadPriority java_lang_ThreadGroup::maxPriority(oop java_thread_group) { | |
| 1007 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1008 return (ThreadPriority) java_thread_group->int_field(_maxPriority_offset); | |
| 1009 } | |
| 1010 | |
| 1011 bool java_lang_ThreadGroup::is_destroyed(oop java_thread_group) { | |
| 1012 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1013 return java_thread_group->bool_field(_destroyed_offset) != 0; | |
| 1014 } | |
| 1015 | |
| 1016 bool java_lang_ThreadGroup::is_daemon(oop java_thread_group) { | |
| 1017 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1018 return java_thread_group->bool_field(_daemon_offset) != 0; | |
| 1019 } | |
| 1020 | |
| 1021 bool java_lang_ThreadGroup::is_vmAllowSuspension(oop java_thread_group) { | |
| 1022 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1023 return java_thread_group->bool_field(_vmAllowSuspension_offset) != 0; | |
| 1024 } | |
| 1025 | |
| 1026 void java_lang_ThreadGroup::compute_offsets() { | |
| 1027 assert(_parent_offset == 0, "offsets should be initialized only once"); | |
| 1028 | |
| 1142 | 1029 klassOop k = SystemDictionary::ThreadGroup_klass(); |
| 0 | 1030 |
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1031 compute_offset(_parent_offset, k, vmSymbols::parent_name(), vmSymbols::threadgroup_signature()); |
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1032 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1033 compute_offset(_threads_offset, k, vmSymbols::threads_name(), vmSymbols::thread_array_signature()); |
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1034 compute_offset(_groups_offset, k, vmSymbols::groups_name(), vmSymbols::threadgroup_array_signature()); |
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1035 compute_offset(_maxPriority_offset, k, vmSymbols::maxPriority_name(), vmSymbols::int_signature()); |
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1036 compute_offset(_destroyed_offset, k, vmSymbols::destroyed_name(), vmSymbols::bool_signature()); |
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1037 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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1038 compute_offset(_vmAllowSuspension_offset, k, vmSymbols::vmAllowSuspension_name(), vmSymbols::bool_signature()); |
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1039 compute_offset(_nthreads_offset, k, vmSymbols::nthreads_name(), vmSymbols::int_signature()); |
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1040 compute_offset(_ngroups_offset, k, vmSymbols::ngroups_name(), vmSymbols::int_signature()); |
| 0 | 1041 } |
| 1042 | |
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1043 oop java_lang_Throwable::unassigned_stacktrace() { |
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1044 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Throwable_klass()); |
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1045 address addr = ik->static_field_addr(static_unassigned_stacktrace_offset); |
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1046 if (UseCompressedOops) { |
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1047 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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1048 } else { |
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1049 return oopDesc::load_decode_heap_oop((oop*)addr); |
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1050 } |
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1051 } |
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1052 |
| 0 | 1053 oop java_lang_Throwable::backtrace(oop throwable) { |
| 1054 return throwable->obj_field_acquire(backtrace_offset); | |
| 1055 } | |
| 1056 | |
| 1057 | |
| 1058 void java_lang_Throwable::set_backtrace(oop throwable, oop value) { | |
| 1059 throwable->release_obj_field_put(backtrace_offset, value); | |
| 1060 } | |
| 1061 | |
| 1062 | |
| 1063 oop java_lang_Throwable::message(oop throwable) { | |
| 1064 return throwable->obj_field(detailMessage_offset); | |
| 1065 } | |
| 1066 | |
| 1067 | |
| 1068 oop java_lang_Throwable::message(Handle throwable) { | |
| 1069 return throwable->obj_field(detailMessage_offset); | |
| 1070 } | |
| 1071 | |
| 1072 | |
| 1073 void java_lang_Throwable::set_message(oop throwable, oop value) { | |
| 1074 throwable->obj_field_put(detailMessage_offset, value); | |
| 1075 } | |
| 1076 | |
| 1077 | |
|
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1078 void java_lang_Throwable::set_stacktrace(oop throwable, oop st_element_array) { |
|
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1079 throwable->obj_field_put(stackTrace_offset, st_element_array); |
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1080 } |
|
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1081 |
| 0 | 1082 void java_lang_Throwable::clear_stacktrace(oop throwable) { |
| 1083 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
|
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1084 set_stacktrace(throwable, NULL); |
| 0 | 1085 } |
| 1086 | |
| 1087 | |
| 1088 void java_lang_Throwable::print(oop throwable, outputStream* st) { | |
| 1089 ResourceMark rm; | |
| 1090 klassOop k = throwable->klass(); | |
| 1091 assert(k != NULL, "just checking"); | |
| 1092 st->print("%s", instanceKlass::cast(k)->external_name()); | |
| 1093 oop msg = message(throwable); | |
| 1094 if (msg != NULL) { | |
| 1095 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
| 1096 } | |
| 1097 } | |
| 1098 | |
| 1099 | |
| 1100 void java_lang_Throwable::print(Handle throwable, outputStream* st) { | |
| 1101 ResourceMark rm; | |
| 1102 klassOop k = throwable->klass(); | |
| 1103 assert(k != NULL, "just checking"); | |
| 1104 st->print("%s", instanceKlass::cast(k)->external_name()); | |
| 1105 oop msg = message(throwable); | |
| 1106 if (msg != NULL) { | |
| 1107 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
| 1108 } | |
| 1109 } | |
| 1110 | |
| 1111 // Print stack trace element to resource allocated buffer | |
| 1112 char* java_lang_Throwable::print_stack_element_to_buffer(methodOop method, int bci) { | |
| 1113 // Get strings and string lengths | |
| 1114 instanceKlass* klass = instanceKlass::cast(method->method_holder()); | |
| 1115 const char* klass_name = klass->external_name(); | |
| 1116 int buf_len = (int)strlen(klass_name); | |
| 1117 char* source_file_name; | |
| 1118 if (klass->source_file_name() == NULL) { | |
| 1119 source_file_name = NULL; | |
| 1120 } else { | |
| 1121 source_file_name = klass->source_file_name()->as_C_string(); | |
| 1122 buf_len += (int)strlen(source_file_name); | |
| 1123 } | |
| 1124 char* method_name = method->name()->as_C_string(); | |
| 1125 buf_len += (int)strlen(method_name); | |
| 1126 | |
| 1127 // Allocate temporary buffer with extra space for formatting and line number | |
| 1128 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64); | |
| 1129 | |
| 1130 // Print stack trace line in buffer | |
| 1131 sprintf(buf, "\tat %s.%s", klass_name, method_name); | |
| 1132 if (method->is_native()) { | |
| 1133 strcat(buf, "(Native Method)"); | |
| 1134 } else { | |
| 1135 int line_number = method->line_number_from_bci(bci); | |
| 1136 if (source_file_name != NULL && (line_number != -1)) { | |
| 1137 // Sourcename and linenumber | |
| 1138 sprintf(buf + (int)strlen(buf), "(%s:%d)", source_file_name, line_number); | |
| 1139 } else if (source_file_name != NULL) { | |
| 1140 // Just sourcename | |
| 1141 sprintf(buf + (int)strlen(buf), "(%s)", source_file_name); | |
| 1142 } else { | |
| 1143 // Neither soucename and linenumber | |
| 1144 sprintf(buf + (int)strlen(buf), "(Unknown Source)"); | |
| 1145 } | |
| 1146 nmethod* nm = method->code(); | |
| 1147 if (WizardMode && nm != NULL) { | |
|
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1148 sprintf(buf + (int)strlen(buf), "(nmethod " PTR_FORMAT ")", (intptr_t)nm); |
| 0 | 1149 } |
| 1150 } | |
| 1151 | |
| 1152 return buf; | |
| 1153 } | |
| 1154 | |
| 1155 | |
| 1156 void java_lang_Throwable::print_stack_element(Handle stream, methodOop method, int bci) { | |
| 1157 ResourceMark rm; | |
| 1158 char* buf = print_stack_element_to_buffer(method, bci); | |
| 1159 print_to_stream(stream, buf); | |
| 1160 } | |
| 1161 | |
| 1162 void java_lang_Throwable::print_stack_element(outputStream *st, methodOop method, int bci) { | |
| 1163 ResourceMark rm; | |
| 1164 char* buf = print_stack_element_to_buffer(method, bci); | |
| 1165 st->print_cr("%s", buf); | |
| 1166 } | |
| 1167 | |
| 1168 void java_lang_Throwable::print_to_stream(Handle stream, const char* str) { | |
| 1169 if (stream.is_null()) { | |
| 1170 tty->print_cr("%s", str); | |
| 1171 } else { | |
| 1172 EXCEPTION_MARK; | |
| 1173 JavaValue result(T_VOID); | |
| 1174 Handle arg (THREAD, oopFactory::new_charArray(str, THREAD)); | |
| 1175 if (!HAS_PENDING_EXCEPTION) { | |
| 1176 JavaCalls::call_virtual(&result, | |
| 1177 stream, | |
| 1178 KlassHandle(THREAD, stream->klass()), | |
|
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1179 vmSymbols::println_name(), |
|
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|
1180 vmSymbols::char_array_void_signature(), |
| 0 | 1181 arg, |
| 1182 THREAD); | |
| 1183 } | |
| 1184 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
| 1185 if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION; | |
| 1186 } | |
| 1187 | |
| 1188 } | |
| 1189 | |
| 1190 | |
| 1191 const char* java_lang_Throwable::no_stack_trace_message() { | |
| 1192 return "\t<<no stack trace available>>"; | |
| 1193 } | |
| 1194 | |
| 1195 | |
| 1196 // Currently used only for exceptions occurring during startup | |
| 1197 void java_lang_Throwable::print_stack_trace(oop throwable, outputStream* st) { | |
| 1198 Thread *THREAD = Thread::current(); | |
| 1199 Handle h_throwable(THREAD, throwable); | |
| 1200 while (h_throwable.not_null()) { | |
| 1201 objArrayHandle result (THREAD, objArrayOop(backtrace(h_throwable()))); | |
| 1202 if (result.is_null()) { | |
| 1203 st->print_cr(no_stack_trace_message()); | |
| 1204 return; | |
| 1205 } | |
| 1206 | |
| 1207 while (result.not_null()) { | |
| 1208 objArrayHandle methods (THREAD, | |
| 1209 objArrayOop(result->obj_at(trace_methods_offset))); | |
| 1210 typeArrayHandle bcis (THREAD, | |
| 1211 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
| 1212 | |
| 1213 if (methods.is_null() || bcis.is_null()) { | |
| 1214 st->print_cr(no_stack_trace_message()); | |
| 1215 return; | |
| 1216 } | |
| 1217 | |
| 1218 int length = methods()->length(); | |
| 1219 for (int index = 0; index < length; index++) { | |
| 1220 methodOop method = methodOop(methods()->obj_at(index)); | |
| 1221 if (method == NULL) goto handle_cause; | |
| 1222 int bci = bcis->ushort_at(index); | |
| 1223 print_stack_element(st, method, bci); | |
| 1224 } | |
| 1225 result = objArrayHandle(THREAD, objArrayOop(result->obj_at(trace_next_offset))); | |
| 1226 } | |
| 1227 handle_cause: | |
| 1228 { | |
| 1229 EXCEPTION_MARK; | |
| 1230 JavaValue result(T_OBJECT); | |
| 1231 JavaCalls::call_virtual(&result, | |
| 1232 h_throwable, | |
| 1233 KlassHandle(THREAD, h_throwable->klass()), | |
|
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1234 vmSymbols::getCause_name(), |
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|
1235 vmSymbols::void_throwable_signature(), |
| 0 | 1236 THREAD); |
| 1237 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
| 1238 if (HAS_PENDING_EXCEPTION) { | |
| 1239 CLEAR_PENDING_EXCEPTION; | |
| 1240 h_throwable = Handle(); | |
| 1241 } else { | |
| 1242 h_throwable = Handle(THREAD, (oop) result.get_jobject()); | |
| 1243 if (h_throwable.not_null()) { | |
| 1244 st->print("Caused by: "); | |
| 1245 print(h_throwable, st); | |
| 1246 st->cr(); | |
| 1247 } | |
| 1248 } | |
| 1249 } | |
| 1250 } | |
| 1251 } | |
| 1252 | |
| 1253 | |
| 1254 void java_lang_Throwable::print_stack_trace(oop throwable, oop print_stream) { | |
| 1255 // Note: this is no longer used in Merlin, but we support it for compatibility. | |
| 1256 Thread *thread = Thread::current(); | |
| 1257 Handle stream(thread, print_stream); | |
| 1258 objArrayHandle result (thread, objArrayOop(backtrace(throwable))); | |
| 1259 if (result.is_null()) { | |
| 1260 print_to_stream(stream, no_stack_trace_message()); | |
| 1261 return; | |
| 1262 } | |
| 1263 | |
| 1264 while (result.not_null()) { | |
| 1265 objArrayHandle methods (thread, | |
| 1266 objArrayOop(result->obj_at(trace_methods_offset))); | |
| 1267 typeArrayHandle bcis (thread, | |
| 1268 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
| 1269 | |
| 1270 if (methods.is_null() || bcis.is_null()) { | |
| 1271 print_to_stream(stream, no_stack_trace_message()); | |
| 1272 return; | |
| 1273 } | |
| 1274 | |
| 1275 int length = methods()->length(); | |
| 1276 for (int index = 0; index < length; index++) { | |
| 1277 methodOop method = methodOop(methods()->obj_at(index)); | |
| 1278 if (method == NULL) return; | |
| 1279 int bci = bcis->ushort_at(index); | |
| 1280 print_stack_element(stream, method, bci); | |
| 1281 } | |
| 1282 result = objArrayHandle(thread, objArrayOop(result->obj_at(trace_next_offset))); | |
| 1283 } | |
| 1284 } | |
| 1285 | |
| 1286 // This class provides a simple wrapper over the internal structure of | |
| 1287 // exception backtrace to insulate users of the backtrace from needing | |
| 1288 // to know what it looks like. | |
| 1289 class BacktraceBuilder: public StackObj { | |
| 1290 private: | |
| 1291 Handle _backtrace; | |
| 1292 objArrayOop _head; | |
| 1293 objArrayOop _methods; | |
| 1294 typeArrayOop _bcis; | |
| 1295 int _index; | |
| 1296 No_Safepoint_Verifier _nsv; | |
| 1297 | |
| 1298 public: | |
| 1299 | |
| 1300 enum { | |
| 1301 trace_methods_offset = java_lang_Throwable::trace_methods_offset, | |
| 1302 trace_bcis_offset = java_lang_Throwable::trace_bcis_offset, | |
| 1303 trace_next_offset = java_lang_Throwable::trace_next_offset, | |
| 1304 trace_size = java_lang_Throwable::trace_size, | |
| 1305 trace_chunk_size = java_lang_Throwable::trace_chunk_size | |
| 1306 }; | |
| 1307 | |
| 1308 // constructor for new backtrace | |
|
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1309 BacktraceBuilder(TRAPS): _methods(NULL), _bcis(NULL), _head(NULL) { |
| 0 | 1310 expand(CHECK); |
| 1311 _backtrace = _head; | |
| 1312 _index = 0; | |
| 1313 } | |
| 1314 | |
| 1315 void expand(TRAPS) { | |
| 1316 objArrayHandle old_head(THREAD, _head); | |
| 1317 Pause_No_Safepoint_Verifier pnsv(&_nsv); | |
| 1318 | |
| 1319 objArrayOop head = oopFactory::new_objectArray(trace_size, CHECK); | |
| 1320 objArrayHandle new_head(THREAD, head); | |
| 1321 | |
| 1322 objArrayOop methods = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
| 1323 objArrayHandle new_methods(THREAD, methods); | |
| 1324 | |
| 1325 typeArrayOop bcis = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
| 1326 typeArrayHandle new_bcis(THREAD, bcis); | |
| 1327 | |
| 1328 if (!old_head.is_null()) { | |
| 1329 old_head->obj_at_put(trace_next_offset, new_head()); | |
| 1330 } | |
| 1331 new_head->obj_at_put(trace_methods_offset, new_methods()); | |
| 1332 new_head->obj_at_put(trace_bcis_offset, new_bcis()); | |
| 1333 | |
| 1334 _head = new_head(); | |
| 1335 _methods = new_methods(); | |
| 1336 _bcis = new_bcis(); | |
| 1337 _index = 0; | |
| 1338 } | |
| 1339 | |
| 1340 oop backtrace() { | |
| 1341 return _backtrace(); | |
| 1342 } | |
| 1343 | |
| 1344 inline void push(methodOop method, short bci, TRAPS) { | |
| 1345 if (_index >= trace_chunk_size) { | |
| 1346 methodHandle mhandle(THREAD, method); | |
| 1347 expand(CHECK); | |
| 1348 method = mhandle(); | |
| 1349 } | |
| 1350 | |
|
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1351 _methods->obj_at_put(_index, method); |
| 0 | 1352 _bcis->ushort_at_put(_index, bci); |
| 1353 _index++; | |
| 1354 } | |
| 1355 | |
| 1356 methodOop current_method() { | |
| 1357 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
| 1358 return methodOop(_methods->obj_at(_index)); | |
| 1359 } | |
| 1360 | |
| 1361 jushort current_bci() { | |
| 1362 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
| 1363 return _bcis->ushort_at(_index); | |
| 1364 } | |
| 1365 }; | |
| 1366 | |
| 1367 | |
|
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1368 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method, TRAPS) { |
| 0 | 1369 if (!StackTraceInThrowable) return; |
| 1370 ResourceMark rm(THREAD); | |
| 1371 | |
| 1372 // Start out by clearing the backtrace for this object, in case the VM | |
| 1373 // runs out of memory while allocating the stack trace | |
| 1374 set_backtrace(throwable(), NULL); | |
| 1375 if (JDK_Version::is_gte_jdk14x_version()) { | |
| 1376 // New since 1.4, clear lazily constructed Java level stacktrace if | |
| 1377 // refilling occurs | |
|
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1378 // This is unnecessary in 1.7+ but harmless |
| 0 | 1379 clear_stacktrace(throwable()); |
| 1380 } | |
| 1381 | |
| 1382 int max_depth = MaxJavaStackTraceDepth; | |
| 1383 JavaThread* thread = (JavaThread*)THREAD; | |
| 1384 BacktraceBuilder bt(CHECK); | |
| 1385 | |
|
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1386 // If there is no Java frame just return the method that was being called |
|
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1387 // with bci 0 |
|
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1388 if (!thread->has_last_Java_frame()) { |
|
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1389 if (max_depth >= 1 && method() != NULL) { |
|
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1390 bt.push(method(), 0, CHECK); |
|
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1391 set_backtrace(throwable(), bt.backtrace()); |
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1392 } |
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1393 return; |
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1394 } |
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1395 |
| 0 | 1396 // Instead of using vframe directly, this version of fill_in_stack_trace |
| 1397 // basically handles everything by hand. This significantly improved the | |
| 1398 // speed of this method call up to 28.5% on Solaris sparc. 27.1% on Windows. | |
| 1399 // See bug 6333838 for more details. | |
| 1400 // The "ASSERT" here is to verify this method generates the exactly same stack | |
| 1401 // trace as utilizing vframe. | |
| 1402 #ifdef ASSERT | |
| 1403 vframeStream st(thread); | |
| 1404 methodHandle st_method(THREAD, st.method()); | |
| 1405 #endif | |
| 1406 int total_count = 0; | |
| 1407 RegisterMap map(thread, false); | |
| 1408 int decode_offset = 0; | |
| 1409 nmethod* nm = NULL; | |
| 1410 bool skip_fillInStackTrace_check = false; | |
| 1411 bool skip_throwableInit_check = false; | |
| 1412 | |
| 1413 for (frame fr = thread->last_frame(); max_depth != total_count;) { | |
| 1414 methodOop method = NULL; | |
| 1415 int bci = 0; | |
| 1416 | |
| 1417 // Compiled java method case. | |
| 1418 if (decode_offset != 0) { | |
| 1419 DebugInfoReadStream stream(nm, decode_offset); | |
| 1420 decode_offset = stream.read_int(); | |
| 1421 method = (methodOop)nm->oop_at(stream.read_int()); | |
|
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1422 bci = stream.read_bci(); |
| 0 | 1423 } else { |
| 1424 if (fr.is_first_frame()) break; | |
| 1425 address pc = fr.pc(); | |
| 1426 if (fr.is_interpreted_frame()) { | |
| 1427 intptr_t bcx = fr.interpreter_frame_bcx(); | |
| 1428 method = fr.interpreter_frame_method(); | |
| 1429 bci = fr.is_bci(bcx) ? bcx : method->bci_from((address)bcx); | |
| 1430 fr = fr.sender(&map); | |
| 1431 } else { | |
| 1432 CodeBlob* cb = fr.cb(); | |
| 1433 // HMMM QQQ might be nice to have frame return nm as NULL if cb is non-NULL | |
| 1434 // but non nmethod | |
| 1435 fr = fr.sender(&map); | |
| 1436 if (cb == NULL || !cb->is_nmethod()) { | |
| 1437 continue; | |
| 1438 } | |
| 1439 nm = (nmethod*)cb; | |
| 1440 if (nm->method()->is_native()) { | |
| 1441 method = nm->method(); | |
| 1442 bci = 0; | |
| 1443 } else { | |
| 1444 PcDesc* pd = nm->pc_desc_at(pc); | |
| 1445 decode_offset = pd->scope_decode_offset(); | |
| 1446 // if decode_offset is not equal to 0, it will execute the | |
| 1447 // "compiled java method case" at the beginning of the loop. | |
| 1448 continue; | |
| 1449 } | |
| 1450 } | |
| 1451 } | |
| 1452 #ifdef ASSERT | |
|
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1453 assert(st_method() == method && st.bci() == bci, |
|
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1454 "Wrong stack trace"); |
|
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1455 st.next(); |
|
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1456 // vframeStream::method isn't GC-safe so store off a copy |
|
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1457 // of the methodOop in case we GC. |
|
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1458 if (!st.at_end()) { |
|
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1459 st_method = st.method(); |
|
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1460 } |
| 0 | 1461 #endif |
|
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1462 |
|
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1463 // the format of the stacktrace will be: |
|
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1464 // - 1 or more fillInStackTrace frames for the exception class (skipped) |
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1465 // - 0 or more <init> methods for the exception class (skipped) |
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1466 // - rest of the stack |
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1467 |
| 0 | 1468 if (!skip_fillInStackTrace_check) { |
|
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1469 if ((method->name() == vmSymbols::fillInStackTrace_name() || |
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1470 method->name() == vmSymbols::fillInStackTrace0_name()) && |
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1471 throwable->is_a(method->method_holder())) { |
| 0 | 1472 continue; |
| 1473 } | |
|
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1474 else { |
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1475 skip_fillInStackTrace_check = true; // gone past them all |
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1476 } |
| 0 | 1477 } |
| 1478 if (!skip_throwableInit_check) { | |
|
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1479 assert(skip_fillInStackTrace_check, "logic error in backtrace filtering"); |
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1480 |
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1481 // skip <init> methods of the exception class and superclasses |
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1482 // This is simlar to classic VM. |
| 0 | 1483 if (method->name() == vmSymbols::object_initializer_name() && |
| 1484 throwable->is_a(method->method_holder())) { | |
| 1485 continue; | |
| 1486 } else { | |
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1487 // there are none or we've seen them all - either way stop checking |
| 0 | 1488 skip_throwableInit_check = true; |
| 1489 } | |
| 1490 } | |
| 1491 bt.push(method, bci, CHECK); | |
| 1492 total_count++; | |
| 1493 } | |
| 1494 | |
| 1495 // Put completed stack trace into throwable object | |
| 1496 set_backtrace(throwable(), bt.backtrace()); | |
| 1497 } | |
| 1498 | |
|
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1499 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method) { |
| 0 | 1500 // No-op if stack trace is disabled |
| 1501 if (!StackTraceInThrowable) { | |
| 1502 return; | |
| 1503 } | |
| 1504 | |
| 1505 // Disable stack traces for some preallocated out of memory errors | |
| 1506 if (!Universe::should_fill_in_stack_trace(throwable)) { | |
| 1507 return; | |
| 1508 } | |
| 1509 | |
| 1510 PRESERVE_EXCEPTION_MARK; | |
| 1511 | |
| 1512 JavaThread* thread = JavaThread::active(); | |
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1513 fill_in_stack_trace(throwable, method, thread); |
| 0 | 1514 // ignore exceptions thrown during stack trace filling |
| 1515 CLEAR_PENDING_EXCEPTION; | |
| 1516 } | |
| 1517 | |
| 1518 void java_lang_Throwable::allocate_backtrace(Handle throwable, TRAPS) { | |
| 1519 // Allocate stack trace - backtrace is created but not filled in | |
| 1520 | |
| 1521 // No-op if stack trace is disabled | |
| 1522 if (!StackTraceInThrowable) return; | |
| 1523 | |
| 1524 objArrayOop h_oop = oopFactory::new_objectArray(trace_size, CHECK); | |
| 1525 objArrayHandle backtrace (THREAD, h_oop); | |
| 1526 objArrayOop m_oop = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
| 1527 objArrayHandle methods (THREAD, m_oop); | |
| 1528 typeArrayOop b = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
| 1529 typeArrayHandle bcis(THREAD, b); | |
| 1530 | |
| 1531 // backtrace has space for one chunk (next is NULL) | |
| 1532 backtrace->obj_at_put(trace_methods_offset, methods()); | |
| 1533 backtrace->obj_at_put(trace_bcis_offset, bcis()); | |
| 1534 set_backtrace(throwable(), backtrace()); | |
| 1535 } | |
| 1536 | |
| 1537 | |
| 1538 void java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(Handle throwable) { | |
| 1539 // Fill in stack trace into preallocated backtrace (no GC) | |
| 1540 | |
| 1541 // No-op if stack trace is disabled | |
| 1542 if (!StackTraceInThrowable) return; | |
| 1543 | |
| 1142 | 1544 assert(throwable->is_a(SystemDictionary::Throwable_klass()), "sanity check"); |
| 0 | 1545 |
| 1546 oop backtrace = java_lang_Throwable::backtrace(throwable()); | |
| 1547 assert(backtrace != NULL, "backtrace not preallocated"); | |
| 1548 | |
| 1549 oop m = objArrayOop(backtrace)->obj_at(trace_methods_offset); | |
| 1550 objArrayOop methods = objArrayOop(m); | |
| 1551 assert(methods != NULL && methods->length() > 0, "method array not preallocated"); | |
| 1552 | |
| 1553 oop b = objArrayOop(backtrace)->obj_at(trace_bcis_offset); | |
| 1554 typeArrayOop bcis = typeArrayOop(b); | |
| 1555 assert(bcis != NULL, "bci array not preallocated"); | |
| 1556 | |
| 1557 assert(methods->length() == bcis->length(), "method and bci arrays should match"); | |
| 1558 | |
| 1559 JavaThread* thread = JavaThread::current(); | |
| 1560 ResourceMark rm(thread); | |
| 1561 vframeStream st(thread); | |
| 1562 | |
| 1563 // Unlike fill_in_stack_trace we do not skip fillInStackTrace or throwable init | |
| 1564 // methods as preallocated errors aren't created by "java" code. | |
| 1565 | |
| 1566 // fill in as much stack trace as possible | |
| 1567 int max_chunks = MIN2(methods->length(), (int)MaxJavaStackTraceDepth); | |
| 1568 int chunk_count = 0; | |
| 1569 | |
| 1570 for (;!st.at_end(); st.next()) { | |
| 1571 // add element | |
| 1572 bcis->ushort_at_put(chunk_count, st.bci()); | |
| 1573 methods->obj_at_put(chunk_count, st.method()); | |
| 1574 | |
| 1575 chunk_count++; | |
| 1576 | |
| 1577 // Bail-out for deep stacks | |
| 1578 if (chunk_count >= max_chunks) break; | |
| 1579 } | |
|
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1580 |
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1581 // For Java 7+ we support the Throwable immutability protocol defined for Java 7. This support |
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1582 // was missing in 7u0 so in 7u0 there is a workaround in the Throwable class. That workaround |
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1583 // can be removed in a JDK using this JVM version |
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1584 if (JDK_Version::is_gte_jdk17x_version()) { |
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1585 java_lang_Throwable::set_stacktrace(throwable(), java_lang_Throwable::unassigned_stacktrace()); |
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1586 assert(java_lang_Throwable::unassigned_stacktrace() != NULL, "not initialized"); |
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1587 } |
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1588 |
| 0 | 1589 } |
| 1590 | |
| 1591 | |
| 1592 int java_lang_Throwable::get_stack_trace_depth(oop throwable, TRAPS) { | |
| 1593 if (throwable == NULL) { | |
| 1594 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
| 1595 } | |
| 1596 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
| 1597 int depth = 0; | |
| 1598 if (chunk != NULL) { | |
| 1599 // Iterate over chunks and count full ones | |
| 1600 while (true) { | |
| 1601 objArrayOop next = objArrayOop(chunk->obj_at(trace_next_offset)); | |
| 1602 if (next == NULL) break; | |
| 1603 depth += trace_chunk_size; | |
| 1604 chunk = next; | |
| 1605 } | |
| 1606 assert(chunk != NULL && chunk->obj_at(trace_next_offset) == NULL, "sanity check"); | |
| 1607 // Count element in remaining partial chunk | |
| 1608 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
| 1609 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
| 1610 assert(methods != NULL && bcis != NULL, "sanity check"); | |
| 1611 for (int i = 0; i < methods->length(); i++) { | |
| 1612 if (methods->obj_at(i) == NULL) break; | |
| 1613 depth++; | |
| 1614 } | |
| 1615 } | |
| 1616 return depth; | |
| 1617 } | |
| 1618 | |
| 1619 | |
| 1620 oop java_lang_Throwable::get_stack_trace_element(oop throwable, int index, TRAPS) { | |
| 1621 if (throwable == NULL) { | |
| 1622 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
| 1623 } | |
| 1624 if (index < 0) { | |
| 1625 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1626 } | |
| 1627 // Compute how many chunks to skip and index into actual chunk | |
| 1628 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
| 1629 int skip_chunks = index / trace_chunk_size; | |
| 1630 int chunk_index = index % trace_chunk_size; | |
| 1631 while (chunk != NULL && skip_chunks > 0) { | |
| 1632 chunk = objArrayOop(chunk->obj_at(trace_next_offset)); | |
| 1633 skip_chunks--; | |
| 1634 } | |
| 1635 if (chunk == NULL) { | |
| 1636 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1637 } | |
| 1638 // Get method,bci from chunk | |
| 1639 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
| 1640 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
| 1641 assert(methods != NULL && bcis != NULL, "sanity check"); | |
| 1642 methodHandle method(THREAD, methodOop(methods->obj_at(chunk_index))); | |
| 1643 int bci = bcis->ushort_at(chunk_index); | |
| 1644 // Chunk can be partial full | |
| 1645 if (method.is_null()) { | |
| 1646 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1647 } | |
| 1648 | |
| 1649 oop element = java_lang_StackTraceElement::create(method, bci, CHECK_0); | |
| 1650 return element; | |
| 1651 } | |
| 1652 | |
| 1653 oop java_lang_StackTraceElement::create(methodHandle method, int bci, TRAPS) { | |
| 1654 // SystemDictionary::stackTraceElement_klass() will be null for pre-1.4 JDKs | |
| 1655 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
| 1656 | |
| 1657 // Allocate java.lang.StackTraceElement instance | |
| 1142 | 1658 klassOop k = SystemDictionary::StackTraceElement_klass(); |
|
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1659 assert(k != NULL, "must be loaded in 1.4+"); |
| 0 | 1660 instanceKlassHandle ik (THREAD, k); |
| 1661 if (ik->should_be_initialized()) { | |
| 1662 ik->initialize(CHECK_0); | |
| 1663 } | |
| 1664 | |
| 1665 Handle element = ik->allocate_instance_handle(CHECK_0); | |
| 1666 // Fill in class name | |
| 1667 ResourceMark rm(THREAD); | |
| 1668 const char* str = instanceKlass::cast(method->method_holder())->external_name(); | |
| 1669 oop classname = StringTable::intern((char*) str, CHECK_0); | |
| 1670 java_lang_StackTraceElement::set_declaringClass(element(), classname); | |
| 1671 // Fill in method name | |
| 1672 oop methodname = StringTable::intern(method->name(), CHECK_0); | |
| 1673 java_lang_StackTraceElement::set_methodName(element(), methodname); | |
| 1674 // Fill in source file name | |
|
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1675 Symbol* source = instanceKlass::cast(method->method_holder())->source_file_name(); |
| 0 | 1676 oop filename = StringTable::intern(source, CHECK_0); |
| 1677 java_lang_StackTraceElement::set_fileName(element(), filename); | |
| 1678 // File in source line number | |
| 1679 int line_number; | |
| 1680 if (method->is_native()) { | |
| 1681 // Negative value different from -1 below, enabling Java code in | |
| 1682 // class java.lang.StackTraceElement to distinguish "native" from | |
| 1683 // "no LineNumberTable". | |
| 1684 line_number = -2; | |
| 1685 } else { | |
| 1686 // Returns -1 if no LineNumberTable, and otherwise actual line number | |
| 1687 line_number = method->line_number_from_bci(bci); | |
| 1688 } | |
| 1689 java_lang_StackTraceElement::set_lineNumber(element(), line_number); | |
| 1690 | |
| 1691 return element(); | |
| 1692 } | |
| 1693 | |
| 1694 | |
| 1695 void java_lang_reflect_AccessibleObject::compute_offsets() { | |
| 1142 | 1696 klassOop k = SystemDictionary::reflect_AccessibleObject_klass(); |
|
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1697 compute_offset(override_offset, k, vmSymbols::override_name(), vmSymbols::bool_signature()); |
| 0 | 1698 } |
| 1699 | |
| 1700 jboolean java_lang_reflect_AccessibleObject::override(oop reflect) { | |
| 1701 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1702 return (jboolean) reflect->bool_field(override_offset); | |
| 1703 } | |
| 1704 | |
| 1705 void java_lang_reflect_AccessibleObject::set_override(oop reflect, jboolean value) { | |
| 1706 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1707 reflect->bool_field_put(override_offset, (int) value); | |
| 1708 } | |
| 1709 | |
| 1710 void java_lang_reflect_Method::compute_offsets() { | |
| 1142 | 1711 klassOop k = SystemDictionary::reflect_Method_klass(); |
|
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1712 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1713 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1714 compute_offset(returnType_offset, k, vmSymbols::returnType_name(), vmSymbols::class_signature()); |
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1715 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1716 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1717 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1718 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 1719 // The generic signature and annotations fields are only present in 1.5 |
| 1720 signature_offset = -1; | |
| 1721 annotations_offset = -1; | |
| 1722 parameter_annotations_offset = -1; | |
| 1723 annotation_default_offset = -1; | |
|
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1724 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1725 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1726 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
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1727 compute_optional_offset(annotation_default_offset, k, vmSymbols::annotation_default_name(), vmSymbols::byte_array_signature()); |
| 0 | 1728 } |
| 1729 | |
| 1730 Handle java_lang_reflect_Method::create(TRAPS) { | |
| 1731 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1142 | 1732 klassOop klass = SystemDictionary::reflect_Method_klass(); |
| 0 | 1733 // This class is eagerly initialized during VM initialization, since we keep a refence |
| 1734 // to one of the methods | |
| 1735 assert(instanceKlass::cast(klass)->is_initialized(), "must be initialized"); | |
| 1736 return instanceKlass::cast(klass)->allocate_instance_handle(CHECK_NH); | |
| 1737 } | |
| 1738 | |
| 1739 oop java_lang_reflect_Method::clazz(oop reflect) { | |
| 1740 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1741 return reflect->obj_field(clazz_offset); | |
| 1742 } | |
| 1743 | |
| 1744 void java_lang_reflect_Method::set_clazz(oop reflect, oop value) { | |
| 1745 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1746 reflect->obj_field_put(clazz_offset, value); | |
| 1747 } | |
| 1748 | |
| 1749 int java_lang_reflect_Method::slot(oop reflect) { | |
| 1750 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1751 return reflect->int_field(slot_offset); | |
| 1752 } | |
| 1753 | |
| 1754 void java_lang_reflect_Method::set_slot(oop reflect, int value) { | |
| 1755 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1756 reflect->int_field_put(slot_offset, value); | |
| 1757 } | |
| 1758 | |
| 1759 oop java_lang_reflect_Method::name(oop method) { | |
| 1760 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1761 return method->obj_field(name_offset); | |
| 1762 } | |
| 1763 | |
| 1764 void java_lang_reflect_Method::set_name(oop method, oop value) { | |
| 1765 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1766 method->obj_field_put(name_offset, value); | |
| 1767 } | |
| 1768 | |
| 1769 oop java_lang_reflect_Method::return_type(oop method) { | |
| 1770 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1771 return method->obj_field(returnType_offset); | |
| 1772 } | |
| 1773 | |
| 1774 void java_lang_reflect_Method::set_return_type(oop method, oop value) { | |
| 1775 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1776 method->obj_field_put(returnType_offset, value); | |
| 1777 } | |
| 1778 | |
| 1779 oop java_lang_reflect_Method::parameter_types(oop method) { | |
| 1780 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1781 return method->obj_field(parameterTypes_offset); | |
| 1782 } | |
| 1783 | |
| 1784 void java_lang_reflect_Method::set_parameter_types(oop method, oop value) { | |
| 1785 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1786 method->obj_field_put(parameterTypes_offset, value); | |
| 1787 } | |
| 1788 | |
| 1789 oop java_lang_reflect_Method::exception_types(oop method) { | |
| 1790 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1791 return method->obj_field(exceptionTypes_offset); | |
| 1792 } | |
| 1793 | |
| 1794 void java_lang_reflect_Method::set_exception_types(oop method, oop value) { | |
| 1795 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1796 method->obj_field_put(exceptionTypes_offset, value); | |
| 1797 } | |
| 1798 | |
| 1799 int java_lang_reflect_Method::modifiers(oop method) { | |
| 1800 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1801 return method->int_field(modifiers_offset); | |
| 1802 } | |
| 1803 | |
| 1804 void java_lang_reflect_Method::set_modifiers(oop method, int value) { | |
| 1805 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1806 method->int_field_put(modifiers_offset, value); | |
| 1807 } | |
| 1808 | |
| 1809 bool java_lang_reflect_Method::has_signature_field() { | |
| 1810 return (signature_offset >= 0); | |
| 1811 } | |
| 1812 | |
| 1813 oop java_lang_reflect_Method::signature(oop method) { | |
| 1814 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1815 assert(has_signature_field(), "signature field must be present"); | |
| 1816 return method->obj_field(signature_offset); | |
| 1817 } | |
| 1818 | |
| 1819 void java_lang_reflect_Method::set_signature(oop method, oop value) { | |
| 1820 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1821 assert(has_signature_field(), "signature field must be present"); | |
| 1822 method->obj_field_put(signature_offset, value); | |
| 1823 } | |
| 1824 | |
| 1825 bool java_lang_reflect_Method::has_annotations_field() { | |
| 1826 return (annotations_offset >= 0); | |
| 1827 } | |
| 1828 | |
| 1829 oop java_lang_reflect_Method::annotations(oop method) { | |
| 1830 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1831 assert(has_annotations_field(), "annotations field must be present"); | |
| 1832 return method->obj_field(annotations_offset); | |
| 1833 } | |
| 1834 | |
| 1835 void java_lang_reflect_Method::set_annotations(oop method, oop value) { | |
| 1836 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1837 assert(has_annotations_field(), "annotations field must be present"); | |
| 1838 method->obj_field_put(annotations_offset, value); | |
| 1839 } | |
| 1840 | |
| 1841 bool java_lang_reflect_Method::has_parameter_annotations_field() { | |
| 1842 return (parameter_annotations_offset >= 0); | |
| 1843 } | |
| 1844 | |
| 1845 oop java_lang_reflect_Method::parameter_annotations(oop method) { | |
| 1846 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1847 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1848 return method->obj_field(parameter_annotations_offset); | |
| 1849 } | |
| 1850 | |
| 1851 void java_lang_reflect_Method::set_parameter_annotations(oop method, oop value) { | |
| 1852 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1853 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1854 method->obj_field_put(parameter_annotations_offset, value); | |
| 1855 } | |
| 1856 | |
| 1857 bool java_lang_reflect_Method::has_annotation_default_field() { | |
| 1858 return (annotation_default_offset >= 0); | |
| 1859 } | |
| 1860 | |
| 1861 oop java_lang_reflect_Method::annotation_default(oop method) { | |
| 1862 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1863 assert(has_annotation_default_field(), "annotation default field must be present"); | |
| 1864 return method->obj_field(annotation_default_offset); | |
| 1865 } | |
| 1866 | |
| 1867 void java_lang_reflect_Method::set_annotation_default(oop method, oop value) { | |
| 1868 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1869 assert(has_annotation_default_field(), "annotation default field must be present"); | |
| 1870 method->obj_field_put(annotation_default_offset, value); | |
| 1871 } | |
| 1872 | |
| 1873 void java_lang_reflect_Constructor::compute_offsets() { | |
| 1142 | 1874 klassOop k = SystemDictionary::reflect_Constructor_klass(); |
|
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1875 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1876 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1877 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1878 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1879 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 1880 // The generic signature and annotations fields are only present in 1.5 |
| 1881 signature_offset = -1; | |
| 1882 annotations_offset = -1; | |
| 1883 parameter_annotations_offset = -1; | |
|
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1884 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1885 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1886 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
| 0 | 1887 } |
| 1888 | |
| 1889 Handle java_lang_reflect_Constructor::create(TRAPS) { | |
| 1890 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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1891 Symbol* name = vmSymbols::java_lang_reflect_Constructor(); |
| 0 | 1892 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
| 1893 instanceKlassHandle klass (THREAD, k); | |
| 1894 // Ensure it is initialized | |
| 1895 klass->initialize(CHECK_NH); | |
| 1896 return klass->allocate_instance_handle(CHECK_NH); | |
| 1897 } | |
| 1898 | |
| 1899 oop java_lang_reflect_Constructor::clazz(oop reflect) { | |
| 1900 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1901 return reflect->obj_field(clazz_offset); | |
| 1902 } | |
| 1903 | |
| 1904 void java_lang_reflect_Constructor::set_clazz(oop reflect, oop value) { | |
| 1905 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1906 reflect->obj_field_put(clazz_offset, value); | |
| 1907 } | |
| 1908 | |
| 1909 oop java_lang_reflect_Constructor::parameter_types(oop constructor) { | |
| 1910 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1911 return constructor->obj_field(parameterTypes_offset); | |
| 1912 } | |
| 1913 | |
| 1914 void java_lang_reflect_Constructor::set_parameter_types(oop constructor, oop value) { | |
| 1915 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1916 constructor->obj_field_put(parameterTypes_offset, value); | |
| 1917 } | |
| 1918 | |
| 1919 oop java_lang_reflect_Constructor::exception_types(oop constructor) { | |
| 1920 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1921 return constructor->obj_field(exceptionTypes_offset); | |
| 1922 } | |
| 1923 | |
| 1924 void java_lang_reflect_Constructor::set_exception_types(oop constructor, oop value) { | |
| 1925 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1926 constructor->obj_field_put(exceptionTypes_offset, value); | |
| 1927 } | |
| 1928 | |
| 1929 int java_lang_reflect_Constructor::slot(oop reflect) { | |
| 1930 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1931 return reflect->int_field(slot_offset); | |
| 1932 } | |
| 1933 | |
| 1934 void java_lang_reflect_Constructor::set_slot(oop reflect, int value) { | |
| 1935 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1936 reflect->int_field_put(slot_offset, value); | |
| 1937 } | |
| 1938 | |
| 1939 int java_lang_reflect_Constructor::modifiers(oop constructor) { | |
| 1940 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1941 return constructor->int_field(modifiers_offset); | |
| 1942 } | |
| 1943 | |
| 1944 void java_lang_reflect_Constructor::set_modifiers(oop constructor, int value) { | |
| 1945 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1946 constructor->int_field_put(modifiers_offset, value); | |
| 1947 } | |
| 1948 | |
| 1949 bool java_lang_reflect_Constructor::has_signature_field() { | |
| 1950 return (signature_offset >= 0); | |
| 1951 } | |
| 1952 | |
| 1953 oop java_lang_reflect_Constructor::signature(oop constructor) { | |
| 1954 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1955 assert(has_signature_field(), "signature field must be present"); | |
| 1956 return constructor->obj_field(signature_offset); | |
| 1957 } | |
| 1958 | |
| 1959 void java_lang_reflect_Constructor::set_signature(oop constructor, oop value) { | |
| 1960 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1961 assert(has_signature_field(), "signature field must be present"); | |
| 1962 constructor->obj_field_put(signature_offset, value); | |
| 1963 } | |
| 1964 | |
| 1965 bool java_lang_reflect_Constructor::has_annotations_field() { | |
| 1966 return (annotations_offset >= 0); | |
| 1967 } | |
| 1968 | |
| 1969 oop java_lang_reflect_Constructor::annotations(oop constructor) { | |
| 1970 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1971 assert(has_annotations_field(), "annotations field must be present"); | |
| 1972 return constructor->obj_field(annotations_offset); | |
| 1973 } | |
| 1974 | |
| 1975 void java_lang_reflect_Constructor::set_annotations(oop constructor, oop value) { | |
| 1976 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1977 assert(has_annotations_field(), "annotations field must be present"); | |
| 1978 constructor->obj_field_put(annotations_offset, value); | |
| 1979 } | |
| 1980 | |
| 1981 bool java_lang_reflect_Constructor::has_parameter_annotations_field() { | |
| 1982 return (parameter_annotations_offset >= 0); | |
| 1983 } | |
| 1984 | |
| 1985 oop java_lang_reflect_Constructor::parameter_annotations(oop method) { | |
| 1986 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1987 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1988 return method->obj_field(parameter_annotations_offset); | |
| 1989 } | |
| 1990 | |
| 1991 void java_lang_reflect_Constructor::set_parameter_annotations(oop method, oop value) { | |
| 1992 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1993 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1994 method->obj_field_put(parameter_annotations_offset, value); | |
| 1995 } | |
| 1996 | |
| 1997 void java_lang_reflect_Field::compute_offsets() { | |
| 1142 | 1998 klassOop k = SystemDictionary::reflect_Field_klass(); |
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1999 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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2000 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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2001 compute_offset(type_offset, k, vmSymbols::type_name(), vmSymbols::class_signature()); |
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2002 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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2003 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 2004 // The generic signature and annotations fields are only present in 1.5 |
| 2005 signature_offset = -1; | |
| 2006 annotations_offset = -1; | |
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2007 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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2008 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
| 0 | 2009 } |
| 2010 | |
| 2011 Handle java_lang_reflect_Field::create(TRAPS) { | |
| 2012 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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2013 Symbol* name = vmSymbols::java_lang_reflect_Field(); |
| 0 | 2014 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
| 2015 instanceKlassHandle klass (THREAD, k); | |
| 2016 // Ensure it is initialized | |
| 2017 klass->initialize(CHECK_NH); | |
| 2018 return klass->allocate_instance_handle(CHECK_NH); | |
| 2019 } | |
| 2020 | |
| 2021 oop java_lang_reflect_Field::clazz(oop reflect) { | |
| 2022 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2023 return reflect->obj_field(clazz_offset); | |
| 2024 } | |
| 2025 | |
| 2026 void java_lang_reflect_Field::set_clazz(oop reflect, oop value) { | |
| 2027 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2028 reflect->obj_field_put(clazz_offset, value); | |
| 2029 } | |
| 2030 | |
| 2031 oop java_lang_reflect_Field::name(oop field) { | |
| 2032 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2033 return field->obj_field(name_offset); | |
| 2034 } | |
| 2035 | |
| 2036 void java_lang_reflect_Field::set_name(oop field, oop value) { | |
| 2037 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2038 field->obj_field_put(name_offset, value); | |
| 2039 } | |
| 2040 | |
| 2041 oop java_lang_reflect_Field::type(oop field) { | |
| 2042 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2043 return field->obj_field(type_offset); | |
| 2044 } | |
| 2045 | |
| 2046 void java_lang_reflect_Field::set_type(oop field, oop value) { | |
| 2047 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2048 field->obj_field_put(type_offset, value); | |
| 2049 } | |
| 2050 | |
| 2051 int java_lang_reflect_Field::slot(oop reflect) { | |
| 2052 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2053 return reflect->int_field(slot_offset); | |
| 2054 } | |
| 2055 | |
| 2056 void java_lang_reflect_Field::set_slot(oop reflect, int value) { | |
| 2057 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2058 reflect->int_field_put(slot_offset, value); | |
| 2059 } | |
| 2060 | |
| 2061 int java_lang_reflect_Field::modifiers(oop field) { | |
| 2062 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2063 return field->int_field(modifiers_offset); | |
| 2064 } | |
| 2065 | |
| 2066 void java_lang_reflect_Field::set_modifiers(oop field, int value) { | |
| 2067 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2068 field->int_field_put(modifiers_offset, value); | |
| 2069 } | |
| 2070 | |
| 2071 bool java_lang_reflect_Field::has_signature_field() { | |
| 2072 return (signature_offset >= 0); | |
| 2073 } | |
| 2074 | |
| 2075 oop java_lang_reflect_Field::signature(oop field) { | |
| 2076 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2077 assert(has_signature_field(), "signature field must be present"); | |
| 2078 return field->obj_field(signature_offset); | |
| 2079 } | |
| 2080 | |
| 2081 void java_lang_reflect_Field::set_signature(oop field, oop value) { | |
| 2082 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2083 assert(has_signature_field(), "signature field must be present"); | |
| 2084 field->obj_field_put(signature_offset, value); | |
| 2085 } | |
| 2086 | |
| 2087 bool java_lang_reflect_Field::has_annotations_field() { | |
| 2088 return (annotations_offset >= 0); | |
| 2089 } | |
| 2090 | |
| 2091 oop java_lang_reflect_Field::annotations(oop field) { | |
| 2092 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2093 assert(has_annotations_field(), "annotations field must be present"); | |
| 2094 return field->obj_field(annotations_offset); | |
| 2095 } | |
| 2096 | |
| 2097 void java_lang_reflect_Field::set_annotations(oop field, oop value) { | |
| 2098 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2099 assert(has_annotations_field(), "annotations field must be present"); | |
| 2100 field->obj_field_put(annotations_offset, value); | |
| 2101 } | |
| 2102 | |
| 2103 | |
| 2104 void sun_reflect_ConstantPool::compute_offsets() { | |
| 1142 | 2105 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
| 0 | 2106 // This null test can be removed post beta |
| 2107 if (k != NULL) { | |
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2108 compute_offset(_cp_oop_offset, k, vmSymbols::constantPoolOop_name(), vmSymbols::object_signature()); |
| 0 | 2109 } |
| 2110 } | |
| 2111 | |
| 2112 | |
| 2113 Handle sun_reflect_ConstantPool::create(TRAPS) { | |
| 2114 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1142 | 2115 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
| 0 | 2116 instanceKlassHandle klass (THREAD, k); |
| 2117 // Ensure it is initialized | |
| 2118 klass->initialize(CHECK_NH); | |
| 2119 return klass->allocate_instance_handle(CHECK_NH); | |
| 2120 } | |
| 2121 | |
| 2122 | |
| 2123 oop sun_reflect_ConstantPool::cp_oop(oop reflect) { | |
| 2124 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2125 return reflect->obj_field(_cp_oop_offset); | |
| 2126 } | |
| 2127 | |
| 2128 | |
| 2129 void sun_reflect_ConstantPool::set_cp_oop(oop reflect, oop value) { | |
| 2130 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2131 reflect->obj_field_put(_cp_oop_offset, value); | |
| 2132 } | |
| 2133 | |
| 2134 void sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets() { | |
| 1142 | 2135 klassOop k = SystemDictionary::reflect_UnsafeStaticFieldAccessorImpl_klass(); |
| 0 | 2136 // This null test can be removed post beta |
| 2137 if (k != NULL) { | |
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2138 compute_offset(_base_offset, k, |
| 0 | 2139 vmSymbols::base_name(), vmSymbols::object_signature()); |
| 2140 } | |
| 2141 } | |
| 2142 | |
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2143 oop java_lang_boxing_object::initialize_and_allocate(BasicType type, TRAPS) { |
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2144 klassOop k = SystemDictionary::box_klass(type); |
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2145 if (k == NULL) return NULL; |
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2146 instanceKlassHandle h (THREAD, k); |
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2147 if (!h->is_initialized()) h->initialize(CHECK_0); |
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2148 return h->allocate_instance(THREAD); |
| 0 | 2149 } |
| 2150 | |
| 2151 | |
| 2152 oop java_lang_boxing_object::create(BasicType type, jvalue* value, TRAPS) { | |
|
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2153 oop box = initialize_and_allocate(type, CHECK_0); |
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2154 if (box == NULL) return NULL; |
| 0 | 2155 switch (type) { |
| 2156 case T_BOOLEAN: | |
| 2157 box->bool_field_put(value_offset, value->z); | |
| 2158 break; | |
| 2159 case T_CHAR: | |
| 2160 box->char_field_put(value_offset, value->c); | |
| 2161 break; | |
| 2162 case T_FLOAT: | |
| 2163 box->float_field_put(value_offset, value->f); | |
| 2164 break; | |
| 2165 case T_DOUBLE: | |
|
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2166 box->double_field_put(long_value_offset, value->d); |
| 0 | 2167 break; |
| 2168 case T_BYTE: | |
| 2169 box->byte_field_put(value_offset, value->b); | |
| 2170 break; | |
| 2171 case T_SHORT: | |
| 2172 box->short_field_put(value_offset, value->s); | |
| 2173 break; | |
| 2174 case T_INT: | |
| 2175 box->int_field_put(value_offset, value->i); | |
| 2176 break; | |
| 2177 case T_LONG: | |
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2178 box->long_field_put(long_value_offset, value->j); |
| 0 | 2179 break; |
| 2180 default: | |
| 2181 return NULL; | |
| 2182 } | |
| 2183 return box; | |
| 2184 } | |
| 2185 | |
| 2186 | |
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2187 BasicType java_lang_boxing_object::basic_type(oop box) { |
|
60b728ec77c1
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|
2188 if (box == NULL) return T_ILLEGAL; |
|
60b728ec77c1
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jrose
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diff
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|
2189 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
|
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|
2190 if (type == T_OBJECT) // 'unknown' value returned by SD::bkt |
|
60b728ec77c1
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jrose
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113
diff
changeset
|
2191 return T_ILLEGAL; |
|
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2192 return type; |
|
60b728ec77c1
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jrose
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113
diff
changeset
|
2193 } |
|
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2194 |
|
60b728ec77c1
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113
diff
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|
2195 |
| 0 | 2196 BasicType java_lang_boxing_object::get_value(oop box, jvalue* value) { |
|
132
60b728ec77c1
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|
2197 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
|
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2198 switch (type) { |
|
60b728ec77c1
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jrose
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diff
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|
2199 case T_BOOLEAN: |
| 0 | 2200 value->z = box->bool_field(value_offset); |
|
132
60b728ec77c1
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jrose
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diff
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|
2201 break; |
|
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jrose
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113
diff
changeset
|
2202 case T_CHAR: |
| 0 | 2203 value->c = box->char_field(value_offset); |
|
132
60b728ec77c1
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jrose
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113
diff
changeset
|
2204 break; |
|
60b728ec77c1
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jrose
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113
diff
changeset
|
2205 case T_FLOAT: |
| 0 | 2206 value->f = box->float_field(value_offset); |
|
132
60b728ec77c1
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jrose
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113
diff
changeset
|
2207 break; |
|
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2208 case T_DOUBLE: |
|
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
2209 value->d = box->double_field(long_value_offset); |
|
132
60b728ec77c1
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jrose
parents:
113
diff
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|
2210 break; |
|
60b728ec77c1
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jrose
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113
diff
changeset
|
2211 case T_BYTE: |
| 0 | 2212 value->b = box->byte_field(value_offset); |
|
132
60b728ec77c1
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jrose
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113
diff
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|
2213 break; |
|
60b728ec77c1
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jrose
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113
diff
changeset
|
2214 case T_SHORT: |
| 0 | 2215 value->s = box->short_field(value_offset); |
|
132
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2216 break; |
|
60b728ec77c1
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jrose
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113
diff
changeset
|
2217 case T_INT: |
| 0 | 2218 value->i = box->int_field(value_offset); |
|
132
60b728ec77c1
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jrose
parents:
113
diff
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|
2219 break; |
|
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2220 case T_LONG: |
|
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
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|
2221 value->j = box->long_field(long_value_offset); |
|
132
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2222 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2223 default: |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2224 return T_ILLEGAL; |
|
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2225 } // end switch |
|
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2226 return type; |
| 0 | 2227 } |
| 2228 | |
| 2229 | |
| 2230 BasicType java_lang_boxing_object::set_value(oop box, jvalue* value) { | |
|
132
60b728ec77c1
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jrose
parents:
113
diff
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|
2231 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
|
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2232 switch (type) { |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2233 case T_BOOLEAN: |
| 0 | 2234 box->bool_field_put(value_offset, value->z); |
|
132
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2235 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2236 case T_CHAR: |
| 0 | 2237 box->char_field_put(value_offset, value->c); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2238 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2239 case T_FLOAT: |
| 0 | 2240 box->float_field_put(value_offset, value->f); |
|
132
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2241 break; |
|
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2242 case T_DOUBLE: |
|
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
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diff
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|
2243 box->double_field_put(long_value_offset, value->d); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2244 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2245 case T_BYTE: |
| 0 | 2246 box->byte_field_put(value_offset, value->b); |
|
132
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2247 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2248 case T_SHORT: |
| 0 | 2249 box->short_field_put(value_offset, value->s); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2250 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2251 case T_INT: |
| 0 | 2252 box->int_field_put(value_offset, value->i); |
|
132
60b728ec77c1
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jrose
parents:
113
diff
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|
2253 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2254 case T_LONG: |
|
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
2255 box->long_field_put(long_value_offset, value->j); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2256 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2257 default: |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2258 return T_ILLEGAL; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2259 } // end switch |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2260 return type; |
| 0 | 2261 } |
| 2262 | |
| 2263 | |
|
665
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2264 void java_lang_boxing_object::print(BasicType type, jvalue* value, outputStream* st) { |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2265 switch (type) { |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2266 case T_BOOLEAN: st->print("%s", value->z ? "true" : "false"); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2267 case T_CHAR: st->print("%d", value->c); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2268 case T_BYTE: st->print("%d", value->b); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2269 case T_SHORT: st->print("%d", value->s); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2270 case T_INT: st->print("%d", value->i); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2271 case T_LONG: st->print(INT64_FORMAT, value->j); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2272 case T_FLOAT: st->print("%f", value->f); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2273 case T_DOUBLE: st->print("%lf", value->d); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2274 default: st->print("type %d?", type); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2275 } |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2276 } |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2277 |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2278 |
| 0 | 2279 // Support for java_lang_ref_Reference |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2280 oop java_lang_ref_Reference::pending_list_lock() { |
| 1142 | 2281 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
|
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2282 address addr = ik->static_field_addr(static_lock_offset); |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2283 if (UseCompressedOops) { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2284 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2285 } else { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2286 return oopDesc::load_decode_heap_oop((oop*)addr); |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2287 } |
| 0 | 2288 } |
| 2289 | |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2290 HeapWord *java_lang_ref_Reference::pending_list_addr() { |
| 1142 | 2291 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
|
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2292 address addr = ik->static_field_addr(static_pending_offset); |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2293 // XXX This might not be HeapWord aligned, almost rather be char *. |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2294 return (HeapWord*)addr; |
| 0 | 2295 } |
| 2296 | |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2297 oop java_lang_ref_Reference::pending_list() { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2298 char *addr = (char *)pending_list_addr(); |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2299 if (UseCompressedOops) { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2300 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2301 } else { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2302 return oopDesc::load_decode_heap_oop((oop*)addr); |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2303 } |
| 0 | 2304 } |
| 2305 | |
| 2306 | |
| 2307 // Support for java_lang_ref_SoftReference | |
| 2308 | |
| 2309 jlong java_lang_ref_SoftReference::timestamp(oop ref) { | |
| 2310 return ref->long_field(timestamp_offset); | |
| 2311 } | |
| 2312 | |
| 2313 jlong java_lang_ref_SoftReference::clock() { | |
| 1142 | 2314 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
|
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2315 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
|
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2316 return *offset; |
| 0 | 2317 } |
| 2318 | |
| 2319 void java_lang_ref_SoftReference::set_clock(jlong value) { | |
| 1142 | 2320 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
|
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2321 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
|
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2322 *offset = value; |
| 0 | 2323 } |
| 2324 | |
| 2325 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2326 // Support for java_lang_invoke_MethodHandle |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2327 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2328 int java_lang_invoke_MethodHandle::_type_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2329 int java_lang_invoke_MethodHandle::_vmtarget_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2330 int java_lang_invoke_MethodHandle::_vmentry_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2331 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2332 int java_lang_invoke_MemberName::_clazz_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2333 int java_lang_invoke_MemberName::_name_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2334 int java_lang_invoke_MemberName::_type_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2335 int java_lang_invoke_MemberName::_flags_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2336 int java_lang_invoke_MemberName::_vmtarget_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2337 int java_lang_invoke_MemberName::_vmindex_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2338 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2339 int java_lang_invoke_DirectMethodHandle::_vmindex_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2340 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2341 int java_lang_invoke_BoundMethodHandle::_argument_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2342 int java_lang_invoke_BoundMethodHandle::_vmargslot_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2343 |
|
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2344 int java_lang_invoke_AdapterMethodHandle::_conversion_offset; |
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2345 |
|
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2346 int java_lang_invoke_CountingMethodHandle::_vmcount_offset; |
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2347 |
|
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2348 void java_lang_invoke_MethodHandle::compute_offsets() { |
| 3938 | 2349 klassOop klass_oop = SystemDictionary::MethodHandle_klass(); |
| 2350 if (klass_oop != NULL && EnableInvokeDynamic) { | |
|
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2351 bool allow_super = false; |
| 3938 | 2352 compute_offset(_type_offset, klass_oop, vmSymbols::type_name(), vmSymbols::java_lang_invoke_MethodType_signature(), allow_super); |
| 2353 METHODHANDLE_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
| 710 | 2354 } |
| 2355 } | |
| 2356 | |
|
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2357 void java_lang_invoke_MemberName::compute_offsets() { |
| 3938 | 2358 klassOop klass_oop = SystemDictionary::MemberName_klass(); |
| 2359 if (klass_oop != NULL && EnableInvokeDynamic) { | |
| 2360 compute_offset(_clazz_offset, klass_oop, vmSymbols::clazz_name(), vmSymbols::class_signature()); | |
| 2361 compute_offset(_name_offset, klass_oop, vmSymbols::name_name(), vmSymbols::string_signature()); | |
| 2362 compute_offset(_type_offset, klass_oop, vmSymbols::type_name(), vmSymbols::object_signature()); | |
| 2363 compute_offset(_flags_offset, klass_oop, vmSymbols::flags_name(), vmSymbols::int_signature()); | |
| 2364 compute_offset(_vmindex_offset, klass_oop, vmSymbols::vmindex_name(), vmSymbols::int_signature()); | |
| 2365 MEMBERNAME_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
| 710 | 2366 } |
| 2367 } | |
| 2368 | |
|
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2369 void java_lang_invoke_DirectMethodHandle::compute_offsets() { |
| 710 | 2370 klassOop k = SystemDictionary::DirectMethodHandle_klass(); |
|
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2371 if (k != NULL && EnableInvokeDynamic) { |
| 3938 | 2372 DIRECTMETHODHANDLE_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); |
| 710 | 2373 } |
| 2374 } | |
| 2375 | |
|
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2376 void java_lang_invoke_BoundMethodHandle::compute_offsets() { |
| 710 | 2377 klassOop k = SystemDictionary::BoundMethodHandle_klass(); |
|
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2378 if (k != NULL && EnableInvokeDynamic) { |
| 710 | 2379 compute_offset(_vmargslot_offset, k, vmSymbols::vmargslot_name(), vmSymbols::int_signature(), true); |
| 2380 compute_offset(_argument_offset, k, vmSymbols::argument_name(), vmSymbols::object_signature(), true); | |
| 2381 } | |
| 2382 } | |
| 2383 | |
|
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2384 void java_lang_invoke_AdapterMethodHandle::compute_offsets() { |
| 710 | 2385 klassOop k = SystemDictionary::AdapterMethodHandle_klass(); |
|
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2386 if (k != NULL && EnableInvokeDynamic) { |
| 710 | 2387 compute_offset(_conversion_offset, k, vmSymbols::conversion_name(), vmSymbols::int_signature(), true); |
| 2388 } | |
| 2389 } | |
| 2390 | |
|
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2391 void java_lang_invoke_CountingMethodHandle::compute_offsets() { |
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2392 klassOop k = SystemDictionary::CountingMethodHandle_klass(); |
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2393 if (k != NULL && EnableInvokeDynamic) { |
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2394 compute_offset(_vmcount_offset, k, vmSymbols::vmcount_name(), vmSymbols::int_signature(), true); |
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2395 } |
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2396 } |
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2397 |
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2398 int java_lang_invoke_CountingMethodHandle::vmcount(oop mh) { |
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2399 assert(is_instance(mh), "CMH only"); |
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2400 return mh->int_field(_vmcount_offset); |
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|
2401 } |
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2402 |
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2403 void java_lang_invoke_CountingMethodHandle::set_vmcount(oop mh, int count) { |
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2404 assert(is_instance(mh), "CMH only"); |
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2405 mh->int_field_put(_vmcount_offset, count); |
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2406 } |
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|
2407 |
|
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2408 oop java_lang_invoke_MethodHandle::type(oop mh) { |
| 710 | 2409 return mh->obj_field(_type_offset); |
| 2410 } | |
| 2411 | |
|
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2412 void java_lang_invoke_MethodHandle::set_type(oop mh, oop mtype) { |
| 710 | 2413 mh->obj_field_put(_type_offset, mtype); |
| 2414 } | |
| 2415 | |
| 2416 // fetch type.form.vmslots, which is the number of JVM stack slots | |
| 2417 // required to carry the arguments of this MH | |
| 3938 | 2418 int java_lang_invoke_MethodHandle::vmslots(oop mh) { |
| 710 | 2419 oop mtype = type(mh); |
| 2420 if (mtype == NULL) return 0; // Java code would get NPE | |
|
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2421 oop form = java_lang_invoke_MethodType::form(mtype); |
| 710 | 2422 if (form == NULL) return 0; // Java code would get NPE |
|
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2423 return java_lang_invoke_MethodTypeForm::vmslots(form); |
| 710 | 2424 } |
| 2425 | |
| 2426 // fetch the low-level entry point for this mh | |
|
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2427 MethodHandleEntry* java_lang_invoke_MethodHandle::vmentry(oop mh) { |
| 710 | 2428 return (MethodHandleEntry*) mh->address_field(_vmentry_offset); |
| 2429 } | |
| 2430 | |
|
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2431 void java_lang_invoke_MethodHandle::set_vmentry(oop mh, MethodHandleEntry* me) { |
| 710 | 2432 assert(_vmentry_offset != 0, "must be present"); |
| 2433 | |
| 2434 // This is always the final step that initializes a valid method handle: | |
| 2435 mh->release_address_field_put(_vmentry_offset, (address) me); | |
| 2436 | |
| 2437 // There should be enough memory barriers on exit from native methods | |
| 2438 // to ensure that the MH is fully initialized to all threads before | |
| 2439 // Java code can publish it in global data structures. | |
| 2440 // But just in case, we use release_address_field_put. | |
| 2441 } | |
| 2442 | |
| 2443 /// MemberName accessors | |
| 2444 | |
|
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|
2445 oop java_lang_invoke_MemberName::clazz(oop mname) { |
| 710 | 2446 assert(is_instance(mname), "wrong type"); |
| 2447 return mname->obj_field(_clazz_offset); | |
| 2448 } | |
| 2449 | |
|
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2450 void java_lang_invoke_MemberName::set_clazz(oop mname, oop clazz) { |
| 710 | 2451 assert(is_instance(mname), "wrong type"); |
| 2452 mname->obj_field_put(_clazz_offset, clazz); | |
| 2453 } | |
| 2454 | |
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2455 oop java_lang_invoke_MemberName::name(oop mname) { |
| 710 | 2456 assert(is_instance(mname), "wrong type"); |
| 2457 return mname->obj_field(_name_offset); | |
| 2458 } | |
| 2459 | |
|
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2460 void java_lang_invoke_MemberName::set_name(oop mname, oop name) { |
| 710 | 2461 assert(is_instance(mname), "wrong type"); |
| 2462 mname->obj_field_put(_name_offset, name); | |
| 2463 } | |
| 2464 | |
|
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|
2465 oop java_lang_invoke_MemberName::type(oop mname) { |
| 710 | 2466 assert(is_instance(mname), "wrong type"); |
| 2467 return mname->obj_field(_type_offset); | |
| 2468 } | |
| 2469 | |
|
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|
2470 void java_lang_invoke_MemberName::set_type(oop mname, oop type) { |
| 710 | 2471 assert(is_instance(mname), "wrong type"); |
| 2472 mname->obj_field_put(_type_offset, type); | |
| 2473 } | |
| 2474 | |
|
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|
2475 int java_lang_invoke_MemberName::flags(oop mname) { |
| 710 | 2476 assert(is_instance(mname), "wrong type"); |
| 2477 return mname->int_field(_flags_offset); | |
| 2478 } | |
| 2479 | |
|
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|
2480 void java_lang_invoke_MemberName::set_flags(oop mname, int flags) { |
| 710 | 2481 assert(is_instance(mname), "wrong type"); |
| 2482 mname->int_field_put(_flags_offset, flags); | |
| 2483 } | |
| 2484 | |
|
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|
2485 oop java_lang_invoke_MemberName::vmtarget(oop mname) { |
| 710 | 2486 assert(is_instance(mname), "wrong type"); |
| 2487 return mname->obj_field(_vmtarget_offset); | |
| 2488 } | |
| 2489 | |
|
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|
2490 void java_lang_invoke_MemberName::set_vmtarget(oop mname, oop ref) { |
| 710 | 2491 assert(is_instance(mname), "wrong type"); |
| 2492 mname->obj_field_put(_vmtarget_offset, ref); | |
| 2493 } | |
| 2494 | |
|
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|
2495 int java_lang_invoke_MemberName::vmindex(oop mname) { |
| 710 | 2496 assert(is_instance(mname), "wrong type"); |
| 2497 return mname->int_field(_vmindex_offset); | |
| 2498 } | |
| 2499 | |
|
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|
2500 void java_lang_invoke_MemberName::set_vmindex(oop mname, int index) { |
| 710 | 2501 assert(is_instance(mname), "wrong type"); |
| 2502 mname->int_field_put(_vmindex_offset, index); | |
| 2503 } | |
| 2504 | |
|
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|
2505 oop java_lang_invoke_MethodHandle::vmtarget(oop mh) { |
| 710 | 2506 assert(is_instance(mh), "MH only"); |
| 2507 return mh->obj_field(_vmtarget_offset); | |
| 2508 } | |
| 2509 | |
|
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|
2510 void java_lang_invoke_MethodHandle::set_vmtarget(oop mh, oop ref) { |
| 710 | 2511 assert(is_instance(mh), "MH only"); |
| 2512 mh->obj_field_put(_vmtarget_offset, ref); | |
| 2513 } | |
| 2514 | |
|
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|
2515 int java_lang_invoke_DirectMethodHandle::vmindex(oop mh) { |
| 710 | 2516 assert(is_instance(mh), "DMH only"); |
| 2517 return mh->int_field(_vmindex_offset); | |
| 2518 } | |
| 2519 | |
|
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|
2520 void java_lang_invoke_DirectMethodHandle::set_vmindex(oop mh, int index) { |
| 710 | 2521 assert(is_instance(mh), "DMH only"); |
| 2522 mh->int_field_put(_vmindex_offset, index); | |
| 2523 } | |
| 2524 | |
|
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|
2525 int java_lang_invoke_BoundMethodHandle::vmargslot(oop mh) { |
| 710 | 2526 assert(is_instance(mh), "BMH only"); |
| 2527 return mh->int_field(_vmargslot_offset); | |
| 2528 } | |
| 2529 | |
|
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|
2530 oop java_lang_invoke_BoundMethodHandle::argument(oop mh) { |
| 710 | 2531 assert(is_instance(mh), "BMH only"); |
| 2532 return mh->obj_field(_argument_offset); | |
| 2533 } | |
| 2534 | |
|
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|
2535 int java_lang_invoke_AdapterMethodHandle::conversion(oop mh) { |
| 710 | 2536 assert(is_instance(mh), "AMH only"); |
| 2537 return mh->int_field(_conversion_offset); | |
| 2538 } | |
| 2539 | |
|
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|
2540 void java_lang_invoke_AdapterMethodHandle::set_conversion(oop mh, int conv) { |
| 710 | 2541 assert(is_instance(mh), "AMH only"); |
| 2542 mh->int_field_put(_conversion_offset, conv); | |
| 2543 } | |
| 2544 | |
| 2545 | |
|
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|
2546 // Support for java_lang_invoke_MethodType |
|
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|
2547 |
|
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|
2548 int java_lang_invoke_MethodType::_rtype_offset; |
|
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|
2549 int java_lang_invoke_MethodType::_ptypes_offset; |
|
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|
2550 int java_lang_invoke_MethodType::_form_offset; |
|
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|
2551 |
|
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|
2552 void java_lang_invoke_MethodType::compute_offsets() { |
| 710 | 2553 klassOop k = SystemDictionary::MethodType_klass(); |
| 2554 if (k != NULL) { | |
| 2555 compute_offset(_rtype_offset, k, vmSymbols::rtype_name(), vmSymbols::class_signature()); | |
| 2556 compute_offset(_ptypes_offset, k, vmSymbols::ptypes_name(), vmSymbols::class_array_signature()); | |
|
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|
2557 compute_offset(_form_offset, k, vmSymbols::form_name(), vmSymbols::java_lang_invoke_MethodTypeForm_signature()); |
| 710 | 2558 } |
| 2559 } | |
| 2560 | |
|
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|
2561 void java_lang_invoke_MethodType::print_signature(oop mt, outputStream* st) { |
| 710 | 2562 st->print("("); |
| 2563 objArrayOop pts = ptypes(mt); | |
| 2564 for (int i = 0, limit = pts->length(); i < limit; i++) { | |
| 2565 java_lang_Class::print_signature(pts->obj_at(i), st); | |
| 2566 } | |
| 2567 st->print(")"); | |
| 2568 java_lang_Class::print_signature(rtype(mt), st); | |
| 2569 } | |
| 2570 | |
|
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|
2571 Symbol* java_lang_invoke_MethodType::as_signature(oop mt, bool intern_if_not_found, TRAPS) { |
| 710 | 2572 ResourceMark rm; |
| 2573 stringStream buffer(128); | |
| 2574 print_signature(mt, &buffer); | |
| 2575 const char* sigstr = buffer.base(); | |
| 2576 int siglen = (int) buffer.size(); | |
|
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|
2577 Symbol *name; |
|
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|
2578 if (!intern_if_not_found) { |
|
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|
2579 name = SymbolTable::probe(sigstr, siglen); |
|
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|
2580 } else { |
|
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|
2581 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
|
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|
2582 } |
|
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|
2583 return name; |
| 710 | 2584 } |
| 2585 | |
|
3785
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2586 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
|
2587 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
|
2588 return false; |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2589 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
|
2590 return false; |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2591 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
|
2592 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
|
2593 return false; |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2594 } |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2595 return true; |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2596 } |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2597 |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2598 oop java_lang_invoke_MethodType::rtype(oop mt) { |
| 710 | 2599 assert(is_instance(mt), "must be a MethodType"); |
| 2600 return mt->obj_field(_rtype_offset); | |
| 2601 } | |
| 2602 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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parents:
2356
diff
changeset
|
2603 objArrayOop java_lang_invoke_MethodType::ptypes(oop mt) { |
| 710 | 2604 assert(is_instance(mt), "must be a MethodType"); |
| 2605 return (objArrayOop) mt->obj_field(_ptypes_offset); | |
| 2606 } | |
| 2607 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2608 oop java_lang_invoke_MethodType::form(oop mt) { |
| 710 | 2609 assert(is_instance(mt), "must be a MethodType"); |
| 2610 return mt->obj_field(_form_offset); | |
| 2611 } | |
| 2612 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2613 oop java_lang_invoke_MethodType::ptype(oop mt, int idx) { |
| 710 | 2614 return ptypes(mt)->obj_at(idx); |
| 2615 } | |
| 2616 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
changeset
|
2617 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
|
2618 return ptypes(mt)->length(); |
|
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
twisti
parents:
1096
diff
changeset
|
2619 } |
|
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
twisti
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1096
diff
changeset
|
2620 |
| 710 | 2621 |
| 2622 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
changeset
|
2623 // Support for java_lang_invoke_MethodTypeForm |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
changeset
|
2624 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2625 int java_lang_invoke_MethodTypeForm::_vmslots_offset; |
|
3363
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2626 int java_lang_invoke_MethodTypeForm::_vmlayout_offset; |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2627 int java_lang_invoke_MethodTypeForm::_erasedType_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
changeset
|
2628 int java_lang_invoke_MethodTypeForm::_genericInvoker_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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parents:
2356
diff
changeset
|
2629 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2630 void java_lang_invoke_MethodTypeForm::compute_offsets() { |
| 710 | 2631 klassOop k = SystemDictionary::MethodTypeForm_klass(); |
| 2632 if (k != NULL) { | |
| 2633 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
|
2634 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
|
2635 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
|
2636 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
|
2637 if (_genericInvoker_offset == 0) _genericInvoker_offset = -1; // set to explicit "empty" value |
| 3938 | 2638 METHODTYPEFORM_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); |
| 710 | 2639 } |
| 2640 } | |
| 2641 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2642 int java_lang_invoke_MethodTypeForm::vmslots(oop mtform) { |
| 710 | 2643 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
|
3363
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2644 assert(_vmslots_offset > 0, ""); |
| 710 | 2645 return mtform->int_field(_vmslots_offset); |
| 2646 } | |
| 2647 | |
|
3363
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2648 oop java_lang_invoke_MethodTypeForm::vmlayout(oop mtform) { |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2649 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2650 assert(_vmlayout_offset > 0, ""); |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2651 return mtform->obj_field(_vmlayout_offset); |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2652 } |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2653 |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2654 oop java_lang_invoke_MethodTypeForm::init_vmlayout(oop mtform, oop cookie) { |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2655 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2656 oop previous = vmlayout(mtform); |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2657 if (previous != NULL) { |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2658 return previous; // someone else beat us to it |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2659 } |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2660 HeapWord* cookie_addr = (HeapWord*) mtform->obj_field_addr<oop>(_vmlayout_offset); |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2661 OrderAccess::storestore(); // make sure our copy is fully committed |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2662 previous = oopDesc::atomic_compare_exchange_oop(cookie, cookie_addr, previous); |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2663 if (previous != NULL) { |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2664 return previous; // someone else beat us to it |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2665 } |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2666 return cookie; |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2667 } |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2668 |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2669 oop java_lang_invoke_MethodTypeForm::erasedType(oop mtform) { |
| 710 | 2670 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
| 2671 return mtform->obj_field(_erasedType_offset); | |
| 2672 } | |
| 2673 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2674 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
|
2675 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
|
2676 return mtform->obj_field(_genericInvoker_offset); |
|
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2677 } |
|
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2678 |
| 710 | 2679 |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2680 // Support for java_lang_invoke_CallSite |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2681 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2682 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
|
2683 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2684 void java_lang_invoke_CallSite::compute_offsets() { |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2685 if (!EnableInvokeDynamic) return; |
|
1059
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
949
diff
changeset
|
2686 klassOop k = SystemDictionary::CallSite_klass(); |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2687 if (k != NULL) { |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2688 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
|
2689 } |
|
3900
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2690 |
|
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2691 // Disallow compilation of CallSite.setTargetNormal and CallSite.setTargetVolatile |
|
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2692 // (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
|
2693 if (k != NULL) { |
|
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2694 instanceKlass* ik = instanceKlass::cast(k); |
|
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2695 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
|
2696 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
|
2697 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
|
2698 m_normal->set_not_compilable_quietly(); |
|
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2699 m_volatile->set_not_compilable_quietly(); |
|
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2700 } |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2701 } |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2702 |
| 710 | 2703 |
| 0 | 2704 // Support for java_security_AccessControlContext |
| 2705 | |
| 2706 int java_security_AccessControlContext::_context_offset = 0; | |
| 2707 int java_security_AccessControlContext::_privilegedContext_offset = 0; | |
| 2708 int java_security_AccessControlContext::_isPrivileged_offset = 0; | |
| 2709 | |
| 2710 void java_security_AccessControlContext::compute_offsets() { | |
| 2711 assert(_isPrivileged_offset == 0, "offsets should be initialized only once"); | |
| 2712 fieldDescriptor fd; | |
| 2713 instanceKlass* ik = instanceKlass::cast(SystemDictionary::AccessControlContext_klass()); | |
| 2714 | |
| 2715 if (!ik->find_local_field(vmSymbols::context_name(), vmSymbols::protectiondomain_signature(), &fd)) { | |
| 2716 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2717 } | |
| 2718 _context_offset = fd.offset(); | |
| 2719 | |
| 2720 if (!ik->find_local_field(vmSymbols::privilegedContext_name(), vmSymbols::accesscontrolcontext_signature(), &fd)) { | |
| 2721 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2722 } | |
| 2723 _privilegedContext_offset = fd.offset(); | |
| 2724 | |
| 2725 if (!ik->find_local_field(vmSymbols::isPrivileged_name(), vmSymbols::bool_signature(), &fd)) { | |
| 2726 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2727 } | |
| 2728 _isPrivileged_offset = fd.offset(); | |
| 2729 } | |
| 2730 | |
| 2731 | |
| 2732 oop java_security_AccessControlContext::create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS) { | |
| 2733 assert(_isPrivileged_offset != 0, "offsets should have been initialized"); | |
| 2734 // Ensure klass is initialized | |
| 2735 instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->initialize(CHECK_0); | |
| 2736 // Allocate result | |
| 2737 oop result = instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->allocate_instance(CHECK_0); | |
| 2738 // Fill in values | |
| 2739 result->obj_field_put(_context_offset, context()); | |
| 2740 result->obj_field_put(_privilegedContext_offset, privileged_context()); | |
| 2741 result->bool_field_put(_isPrivileged_offset, isPrivileged); | |
| 2742 return result; | |
| 2743 } | |
| 2744 | |
| 2745 | |
| 2746 // Support for java_lang_ClassLoader | |
| 3938 | 2747 bool java_lang_ClassLoader::offsets_computed = false; |
| 2748 int java_lang_ClassLoader::parallelCapable_offset = -1; | |
| 2749 | |
| 2750 void java_lang_ClassLoader::compute_offsets() { | |
| 2751 assert(!offsets_computed, "offsets should be initialized only once"); | |
| 2752 offsets_computed = true; | |
| 2753 | |
| 2754 // The field indicating parallelCapable (parallelLockMap) is only present starting in 7, | |
| 2755 klassOop k1 = SystemDictionary::ClassLoader_klass(); | |
| 2756 compute_optional_offset(parallelCapable_offset, | |
| 2757 k1, vmSymbols::parallelCapable_name(), vmSymbols::concurrenthashmap_signature()); | |
| 2758 } | |
| 0 | 2759 |
| 2760 oop java_lang_ClassLoader::parent(oop loader) { | |
| 2761 assert(loader->is_oop(), "loader must be oop"); | |
| 2762 return loader->obj_field(parent_offset); | |
| 2763 } | |
| 2764 | |
| 2765 | |
| 3938 | 2766 // For class loader classes, parallelCapable defined |
| 2767 // based on non-null field | |
| 2768 // Written to by java.lang.ClassLoader, vm only reads this field, doesn't set it | |
| 2769 bool java_lang_ClassLoader::parallelCapable(oop class_loader) { | |
| 2770 if (!JDK_Version::is_gte_jdk17x_version() | |
| 2771 || parallelCapable_offset == -1) { | |
| 2772 // Default for backward compatibility is false | |
| 2773 return false; | |
| 2774 } | |
| 2775 return (class_loader->obj_field(parallelCapable_offset) != NULL); | |
| 2776 } | |
| 2777 | |
| 0 | 2778 bool java_lang_ClassLoader::is_trusted_loader(oop loader) { |
| 2779 // Fix for 4474172; see evaluation for more details | |
| 2780 loader = non_reflection_class_loader(loader); | |
| 2781 | |
| 2782 oop cl = SystemDictionary::java_system_loader(); | |
| 2783 while(cl != NULL) { | |
| 2784 if (cl == loader) return true; | |
| 2785 cl = parent(cl); | |
| 2786 } | |
| 2787 return false; | |
| 2788 } | |
| 2789 | |
| 2790 oop java_lang_ClassLoader::non_reflection_class_loader(oop loader) { | |
| 2791 if (loader != NULL) { | |
| 2792 // See whether this is one of the class loaders associated with | |
| 2793 // the generated bytecodes for reflection, and if so, "magically" | |
| 2794 // delegate to its parent to prevent class loading from occurring | |
| 2795 // in places where applications using reflection didn't expect it. | |
| 1142 | 2796 klassOop delegating_cl_class = SystemDictionary::reflect_DelegatingClassLoader_klass(); |
| 0 | 2797 // This might be null in non-1.4 JDKs |
| 2798 if (delegating_cl_class != NULL && loader->is_a(delegating_cl_class)) { | |
| 2799 return parent(loader); | |
| 2800 } | |
| 2801 } | |
| 2802 return loader; | |
| 2803 } | |
| 2804 | |
| 2805 | |
| 2806 // Support for java_lang_System | |
| 2807 int java_lang_System::in_offset_in_bytes() { | |
|
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|
2808 return (instanceMirrorKlass::offset_of_static_fields() + static_in_offset); |
| 0 | 2809 } |
| 2810 | |
| 2811 | |
| 2812 int java_lang_System::out_offset_in_bytes() { | |
|
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|
2813 return (instanceMirrorKlass::offset_of_static_fields() + static_out_offset); |
| 0 | 2814 } |
| 2815 | |
| 2816 | |
| 2817 int java_lang_System::err_offset_in_bytes() { | |
|
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|
2818 return (instanceMirrorKlass::offset_of_static_fields() + static_err_offset); |
| 0 | 2819 } |
| 2820 | |
| 2821 | |
| 2822 | |
| 2823 int java_lang_String::value_offset; | |
| 2824 int java_lang_String::offset_offset; | |
| 2825 int java_lang_String::count_offset; | |
| 2826 int java_lang_String::hash_offset; | |
| 3938 | 2827 int java_lang_Class::_klass_offset; |
| 2828 int java_lang_Class::_array_klass_offset; | |
| 2829 int java_lang_Class::_resolved_constructor_offset; | |
| 2830 int java_lang_Class::_oop_size_offset; | |
| 2831 int java_lang_Class::_static_oop_field_count_offset; | |
| 0 | 2832 int java_lang_Throwable::backtrace_offset; |
| 2833 int java_lang_Throwable::detailMessage_offset; | |
| 2834 int java_lang_Throwable::cause_offset; | |
| 2835 int java_lang_Throwable::stackTrace_offset; | |
|
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2836 int java_lang_Throwable::static_unassigned_stacktrace_offset; |
| 0 | 2837 int java_lang_reflect_AccessibleObject::override_offset; |
| 2838 int java_lang_reflect_Method::clazz_offset; | |
| 2839 int java_lang_reflect_Method::name_offset; | |
| 2840 int java_lang_reflect_Method::returnType_offset; | |
| 2841 int java_lang_reflect_Method::parameterTypes_offset; | |
| 2842 int java_lang_reflect_Method::exceptionTypes_offset; | |
| 2843 int java_lang_reflect_Method::slot_offset; | |
| 2844 int java_lang_reflect_Method::modifiers_offset; | |
| 2845 int java_lang_reflect_Method::signature_offset; | |
| 2846 int java_lang_reflect_Method::annotations_offset; | |
| 2847 int java_lang_reflect_Method::parameter_annotations_offset; | |
| 2848 int java_lang_reflect_Method::annotation_default_offset; | |
| 2849 int java_lang_reflect_Constructor::clazz_offset; | |
| 2850 int java_lang_reflect_Constructor::parameterTypes_offset; | |
| 2851 int java_lang_reflect_Constructor::exceptionTypes_offset; | |
| 2852 int java_lang_reflect_Constructor::slot_offset; | |
| 2853 int java_lang_reflect_Constructor::modifiers_offset; | |
| 2854 int java_lang_reflect_Constructor::signature_offset; | |
| 2855 int java_lang_reflect_Constructor::annotations_offset; | |
| 2856 int java_lang_reflect_Constructor::parameter_annotations_offset; | |
| 2857 int java_lang_reflect_Field::clazz_offset; | |
| 2858 int java_lang_reflect_Field::name_offset; | |
| 2859 int java_lang_reflect_Field::type_offset; | |
| 2860 int java_lang_reflect_Field::slot_offset; | |
| 2861 int java_lang_reflect_Field::modifiers_offset; | |
| 2862 int java_lang_reflect_Field::signature_offset; | |
| 2863 int java_lang_reflect_Field::annotations_offset; | |
| 2864 int java_lang_boxing_object::value_offset; | |
|
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2865 int java_lang_boxing_object::long_value_offset; |
| 0 | 2866 int java_lang_ref_Reference::referent_offset; |
| 2867 int java_lang_ref_Reference::queue_offset; | |
| 2868 int java_lang_ref_Reference::next_offset; | |
| 2869 int java_lang_ref_Reference::discovered_offset; | |
| 2870 int java_lang_ref_Reference::static_lock_offset; | |
| 2871 int java_lang_ref_Reference::static_pending_offset; | |
| 2872 int java_lang_ref_Reference::number_of_fake_oop_fields; | |
| 2873 int java_lang_ref_SoftReference::timestamp_offset; | |
| 2874 int java_lang_ref_SoftReference::static_clock_offset; | |
| 2875 int java_lang_ClassLoader::parent_offset; | |
| 2876 int java_lang_System::static_in_offset; | |
| 2877 int java_lang_System::static_out_offset; | |
| 2878 int java_lang_System::static_err_offset; | |
| 2879 int java_lang_StackTraceElement::declaringClass_offset; | |
| 2880 int java_lang_StackTraceElement::methodName_offset; | |
| 2881 int java_lang_StackTraceElement::fileName_offset; | |
| 2882 int java_lang_StackTraceElement::lineNumber_offset; | |
| 2883 int java_lang_AssertionStatusDirectives::classes_offset; | |
| 2884 int java_lang_AssertionStatusDirectives::classEnabled_offset; | |
| 2885 int java_lang_AssertionStatusDirectives::packages_offset; | |
| 2886 int java_lang_AssertionStatusDirectives::packageEnabled_offset; | |
| 2887 int java_lang_AssertionStatusDirectives::deflt_offset; | |
| 2888 int java_nio_Buffer::_limit_offset; | |
| 2889 int sun_misc_AtomicLongCSImpl::_value_offset; | |
| 2890 int java_util_concurrent_locks_AbstractOwnableSynchronizer::_owner_offset = 0; | |
| 2891 int sun_reflect_ConstantPool::_cp_oop_offset; | |
| 2892 int sun_reflect_UnsafeStaticFieldAccessorImpl::_base_offset; | |
| 2893 | |
| 2894 | |
| 2895 // Support for java_lang_StackTraceElement | |
| 2896 | |
| 2897 void java_lang_StackTraceElement::set_fileName(oop element, oop value) { | |
| 2898 element->obj_field_put(fileName_offset, value); | |
| 2899 } | |
| 2900 | |
| 2901 void java_lang_StackTraceElement::set_declaringClass(oop element, oop value) { | |
| 2902 element->obj_field_put(declaringClass_offset, value); | |
| 2903 } | |
| 2904 | |
| 2905 void java_lang_StackTraceElement::set_methodName(oop element, oop value) { | |
| 2906 element->obj_field_put(methodName_offset, value); | |
| 2907 } | |
| 2908 | |
| 2909 void java_lang_StackTraceElement::set_lineNumber(oop element, int value) { | |
| 2910 element->int_field_put(lineNumber_offset, value); | |
| 2911 } | |
| 2912 | |
| 2913 | |
| 2914 // Support for java Assertions - java_lang_AssertionStatusDirectives. | |
| 2915 | |
| 2916 void java_lang_AssertionStatusDirectives::set_classes(oop o, oop val) { | |
| 2917 o->obj_field_put(classes_offset, val); | |
| 2918 } | |
| 2919 | |
| 2920 void java_lang_AssertionStatusDirectives::set_classEnabled(oop o, oop val) { | |
| 2921 o->obj_field_put(classEnabled_offset, val); | |
| 2922 } | |
| 2923 | |
| 2924 void java_lang_AssertionStatusDirectives::set_packages(oop o, oop val) { | |
| 2925 o->obj_field_put(packages_offset, val); | |
| 2926 } | |
| 2927 | |
| 2928 void java_lang_AssertionStatusDirectives::set_packageEnabled(oop o, oop val) { | |
| 2929 o->obj_field_put(packageEnabled_offset, val); | |
| 2930 } | |
| 2931 | |
| 2932 void java_lang_AssertionStatusDirectives::set_deflt(oop o, bool val) { | |
| 2933 o->bool_field_put(deflt_offset, val); | |
| 2934 } | |
| 2935 | |
| 2936 | |
| 2937 // Support for intrinsification of java.nio.Buffer.checkIndex | |
| 2938 int java_nio_Buffer::limit_offset() { | |
| 2939 return _limit_offset; | |
| 2940 } | |
| 2941 | |
| 2942 | |
| 2943 void java_nio_Buffer::compute_offsets() { | |
| 3938 | 2944 klassOop k = SystemDictionary::nio_Buffer_klass(); |
|
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|
2945 assert(k != NULL, "must be loaded in 1.4+"); |
|
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|
2946 compute_offset(_limit_offset, k, vmSymbols::limit_name(), vmSymbols::int_signature()); |
| 0 | 2947 } |
| 2948 | |
| 2949 // Support for intrinsification of sun.misc.AtomicLongCSImpl.attemptUpdate | |
| 2950 int sun_misc_AtomicLongCSImpl::value_offset() { | |
| 3938 | 2951 assert(SystemDictionary::AtomicLongCSImpl_klass() != NULL, "can't call this"); |
| 0 | 2952 return _value_offset; |
| 2953 } | |
| 2954 | |
| 2955 | |
| 2956 void sun_misc_AtomicLongCSImpl::compute_offsets() { | |
| 3938 | 2957 klassOop k = SystemDictionary::AtomicLongCSImpl_klass(); |
| 0 | 2958 // If this class is not present, its value field offset won't be referenced. |
| 2959 if (k != NULL) { | |
|
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|
2960 compute_offset(_value_offset, k, vmSymbols::value_name(), vmSymbols::long_signature()); |
| 0 | 2961 } |
| 2962 } | |
| 2963 | |
| 2964 void java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(TRAPS) { | |
| 2965 if (_owner_offset != 0) return; | |
| 2966 | |
| 2967 assert(JDK_Version::is_gte_jdk16x_version(), "Must be JDK 1.6 or later"); | |
| 2968 SystemDictionary::load_abstract_ownable_synchronizer_klass(CHECK); | |
| 2969 klassOop k = SystemDictionary::abstract_ownable_synchronizer_klass(); | |
|
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|
2970 compute_offset(_owner_offset, k, |
| 0 | 2971 vmSymbols::exclusive_owner_thread_name(), vmSymbols::thread_signature()); |
| 2972 } | |
| 2973 | |
| 2974 oop java_util_concurrent_locks_AbstractOwnableSynchronizer::get_owner_threadObj(oop obj) { | |
| 2975 assert(_owner_offset != 0, "Must be initialized"); | |
| 2976 return obj->obj_field(_owner_offset); | |
| 2977 } | |
| 2978 | |
| 2979 // Compute hard-coded offsets | |
| 2980 // Invoked before SystemDictionary::initialize, so pre-loaded classes | |
| 2981 // are not available to determine the offset_of_static_fields. | |
| 2982 void JavaClasses::compute_hard_coded_offsets() { | |
|
113
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6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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diff
changeset
|
2983 const int x = heapOopSize; |
|
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|
2984 const int header = instanceOopDesc::base_offset_in_bytes(); |
| 0 | 2985 |
| 2986 // Do the String Class | |
| 2987 java_lang_String::value_offset = java_lang_String::hc_value_offset * x + header; | |
| 2988 java_lang_String::offset_offset = java_lang_String::hc_offset_offset * x + header; | |
| 2989 java_lang_String::count_offset = java_lang_String::offset_offset + sizeof (jint); | |
| 2990 java_lang_String::hash_offset = java_lang_String::count_offset + sizeof (jint); | |
| 2991 | |
| 2992 // Throwable Class | |
| 2993 java_lang_Throwable::backtrace_offset = java_lang_Throwable::hc_backtrace_offset * x + header; | |
| 2994 java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header; | |
| 2995 java_lang_Throwable::cause_offset = java_lang_Throwable::hc_cause_offset * x + header; | |
| 2996 java_lang_Throwable::stackTrace_offset = java_lang_Throwable::hc_stackTrace_offset * x + header; | |
|
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|
2997 java_lang_Throwable::static_unassigned_stacktrace_offset = java_lang_Throwable::hc_static_unassigned_stacktrace_offset * x; |
| 0 | 2998 |
| 2999 // java_lang_boxing_object | |
|
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|
3000 java_lang_boxing_object::value_offset = java_lang_boxing_object::hc_value_offset + header; |
|
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|
3001 java_lang_boxing_object::long_value_offset = align_size_up((java_lang_boxing_object::hc_value_offset + header), BytesPerLong); |
| 0 | 3002 |
| 3003 // java_lang_ref_Reference: | |
| 3004 java_lang_ref_Reference::referent_offset = java_lang_ref_Reference::hc_referent_offset * x + header; | |
| 3005 java_lang_ref_Reference::queue_offset = java_lang_ref_Reference::hc_queue_offset * x + header; | |
| 3006 java_lang_ref_Reference::next_offset = java_lang_ref_Reference::hc_next_offset * x + header; | |
| 3007 java_lang_ref_Reference::discovered_offset = java_lang_ref_Reference::hc_discovered_offset * x + header; | |
| 3008 java_lang_ref_Reference::static_lock_offset = java_lang_ref_Reference::hc_static_lock_offset * x; | |
| 3009 java_lang_ref_Reference::static_pending_offset = java_lang_ref_Reference::hc_static_pending_offset * x; | |
| 3010 // Artificial fields for java_lang_ref_Reference | |
| 3011 // The first field is for the discovered field added in 1.4 | |
| 3012 java_lang_ref_Reference::number_of_fake_oop_fields = 1; | |
| 3013 | |
| 3014 // java_lang_ref_SoftReference Class | |
|
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|
3015 java_lang_ref_SoftReference::timestamp_offset = align_size_up((java_lang_ref_SoftReference::hc_timestamp_offset * x + header), BytesPerLong); |
| 0 | 3016 // Don't multiply static fields because they are always in wordSize units |
| 3017 java_lang_ref_SoftReference::static_clock_offset = java_lang_ref_SoftReference::hc_static_clock_offset * x; | |
| 3018 | |
| 3019 // java_lang_ClassLoader | |
| 3020 java_lang_ClassLoader::parent_offset = java_lang_ClassLoader::hc_parent_offset * x + header; | |
| 3021 | |
| 3022 // java_lang_System | |
| 3023 java_lang_System::static_in_offset = java_lang_System::hc_static_in_offset * x; | |
| 3024 java_lang_System::static_out_offset = java_lang_System::hc_static_out_offset * x; | |
| 3025 java_lang_System::static_err_offset = java_lang_System::hc_static_err_offset * x; | |
| 3026 | |
| 3027 // java_lang_StackTraceElement | |
| 3028 java_lang_StackTraceElement::declaringClass_offset = java_lang_StackTraceElement::hc_declaringClass_offset * x + header; | |
| 3029 java_lang_StackTraceElement::methodName_offset = java_lang_StackTraceElement::hc_methodName_offset * x + header; | |
| 3030 java_lang_StackTraceElement::fileName_offset = java_lang_StackTraceElement::hc_fileName_offset * x + header; | |
| 3031 java_lang_StackTraceElement::lineNumber_offset = java_lang_StackTraceElement::hc_lineNumber_offset * x + header; | |
| 3032 java_lang_AssertionStatusDirectives::classes_offset = java_lang_AssertionStatusDirectives::hc_classes_offset * x + header; | |
| 3033 java_lang_AssertionStatusDirectives::classEnabled_offset = java_lang_AssertionStatusDirectives::hc_classEnabled_offset * x + header; | |
| 3034 java_lang_AssertionStatusDirectives::packages_offset = java_lang_AssertionStatusDirectives::hc_packages_offset * x + header; | |
| 3035 java_lang_AssertionStatusDirectives::packageEnabled_offset = java_lang_AssertionStatusDirectives::hc_packageEnabled_offset * x + header; | |
| 3036 java_lang_AssertionStatusDirectives::deflt_offset = java_lang_AssertionStatusDirectives::hc_deflt_offset * x + header; | |
| 3037 | |
| 3038 } | |
| 3039 | |
| 3040 | |
| 3041 // Compute non-hard-coded field offsets of all the classes in this file | |
| 3042 void JavaClasses::compute_offsets() { | |
| 3938 | 3043 // java_lang_Class::compute_offsets was called earlier in bootstrap |
| 3044 java_lang_ClassLoader::compute_offsets(); | |
| 0 | 3045 java_lang_Thread::compute_offsets(); |
| 3046 java_lang_ThreadGroup::compute_offsets(); | |
|
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6817525: turn on method handle functionality by default for JSR 292
twisti
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2379
diff
changeset
|
3047 if (EnableInvokeDynamic) { |
|
2357
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7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
3048 java_lang_invoke_MethodHandle::compute_offsets(); |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
3049 java_lang_invoke_MemberName::compute_offsets(); |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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diff
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|
3050 java_lang_invoke_DirectMethodHandle::compute_offsets(); |
|
8033953d67ff
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jrose
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2356
diff
changeset
|
3051 java_lang_invoke_BoundMethodHandle::compute_offsets(); |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
3052 java_lang_invoke_AdapterMethodHandle::compute_offsets(); |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
3053 java_lang_invoke_MethodType::compute_offsets(); |
|
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jrose
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diff
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|
3054 java_lang_invoke_MethodTypeForm::compute_offsets(); |
|
8033953d67ff
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jrose
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2356
diff
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|
3055 java_lang_invoke_CallSite::compute_offsets(); |
|
3905
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3900
diff
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|
3056 java_lang_invoke_CountingMethodHandle::compute_offsets(); |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
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diff
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|
3057 } |
| 0 | 3058 java_security_AccessControlContext::compute_offsets(); |
| 3059 // Initialize reflection classes. The layouts of these classes | |
| 3060 // changed with the new reflection implementation in JDK 1.4, and | |
| 3061 // since the Universe doesn't know what JDK version it is until this | |
| 3062 // point we defer computation of these offsets until now. | |
| 3063 java_lang_reflect_AccessibleObject::compute_offsets(); | |
| 3064 java_lang_reflect_Method::compute_offsets(); | |
| 3065 java_lang_reflect_Constructor::compute_offsets(); | |
| 3066 java_lang_reflect_Field::compute_offsets(); | |
| 3067 if (JDK_Version::is_gte_jdk14x_version()) { | |
| 3068 java_nio_Buffer::compute_offsets(); | |
| 3069 } | |
| 3070 if (JDK_Version::is_gte_jdk15x_version()) { | |
| 3071 sun_reflect_ConstantPool::compute_offsets(); | |
| 3072 sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets(); | |
| 3073 } | |
| 3074 sun_misc_AtomicLongCSImpl::compute_offsets(); | |
| 710 | 3075 |
| 3076 // generated interpreter code wants to know about the offsets we just computed: | |
| 3077 AbstractAssembler::update_delayed_values(); | |
| 0 | 3078 } |
| 3079 | |
| 3080 #ifndef PRODUCT | |
| 3081 | |
| 3082 // These functions exist to assert the validity of hard-coded field offsets to guard | |
| 3083 // against changes in the class files | |
| 3084 | |
| 3085 bool JavaClasses::check_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
| 3086 EXCEPTION_MARK; | |
| 3087 fieldDescriptor fd; | |
|
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diff
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|
3088 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
| 0 | 3089 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
| 3090 instanceKlassHandle h_klass (THREAD, k); | |
|
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|
3091 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
|
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diff
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|
3092 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
|
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diff
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|
3093 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
| 0 | 3094 tty->print_cr("Nonstatic field %s.%s not found", klass_name, field_name); |
| 3095 return false; | |
| 3096 } | |
| 3097 if (fd.is_static()) { | |
| 3098 tty->print_cr("Nonstatic field %s.%s appears to be static", klass_name, field_name); | |
| 3099 return false; | |
| 3100 } | |
| 3101 if (fd.offset() == hardcoded_offset ) { | |
| 3102 return true; | |
| 3103 } else { | |
| 3104 tty->print_cr("Offset of nonstatic field %s.%s is hardcoded as %d but should really be %d.", | |
| 3105 klass_name, field_name, hardcoded_offset, fd.offset()); | |
| 3106 return false; | |
| 3107 } | |
| 3108 } | |
| 3109 | |
| 3110 | |
| 3111 bool JavaClasses::check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
| 3112 EXCEPTION_MARK; | |
| 3113 fieldDescriptor fd; | |
|
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diff
changeset
|
3114 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
| 0 | 3115 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
| 3116 instanceKlassHandle h_klass (THREAD, k); | |
|
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diff
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|
3117 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
|
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diff
changeset
|
3118 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
|
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diff
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|
3119 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
| 0 | 3120 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
| 3121 return false; | |
| 3122 } | |
| 3123 if (!fd.is_static()) { | |
| 3124 tty->print_cr("Static field %s.%s appears to be nonstatic", klass_name, field_name); | |
| 3125 return false; | |
| 3126 } | |
|
2376
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parents:
2357
diff
changeset
|
3127 if (fd.offset() == hardcoded_offset + instanceMirrorKlass::offset_of_static_fields()) { |
| 0 | 3128 return true; |
| 3129 } else { | |
|
2376
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|
3130 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 | 3131 return false; |
| 3132 } | |
| 3133 } | |
| 3134 | |
| 3135 | |
|
132
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|
3136 bool JavaClasses::check_constant(const char *klass_name, int hardcoded_constant, const char *field_name, const char* field_sig) { |
|
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|
3137 EXCEPTION_MARK; |
|
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|
3138 fieldDescriptor fd; |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3139 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
|
132
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3140 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
|
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|
3141 instanceKlassHandle h_klass (THREAD, k); |
|
2177
3582bf76420e
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coleenp
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diff
changeset
|
3142 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
|
3582bf76420e
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coleenp
parents:
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diff
changeset
|
3143 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
|
3582bf76420e
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diff
changeset
|
3144 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
|
132
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|
3145 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
|
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|
3146 return false; |
|
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jrose
parents:
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diff
changeset
|
3147 } |
|
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|
3148 if (!fd.is_static() || !fd.has_initial_value()) { |
|
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|
3149 tty->print_cr("Static field %s.%s appears to be non-constant", klass_name, field_name); |
|
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|
3150 return false; |
|
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|
3151 } |
|
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jrose
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|
3152 if (!fd.initial_value_tag().is_int()) { |
|
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|
3153 tty->print_cr("Static field %s.%s is not an int", klass_name, field_name); |
|
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|
3154 return false; |
|
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|
3155 } |
|
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|
3156 jint field_value = fd.int_initial_value(); |
|
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|
3157 if (field_value == hardcoded_constant) { |
|
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|
3158 return true; |
|
60b728ec77c1
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jrose
parents:
113
diff
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|
3159 } else { |
|
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|
3160 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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|
3161 return false; |
|
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|
3162 } |
|
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|
3163 } |
|
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|
3164 |
|
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|
3165 |
| 0 | 3166 // Check the hard-coded field offsets of all the classes in this file |
| 3167 | |
| 3168 void JavaClasses::check_offsets() { | |
| 3169 bool valid = true; | |
| 3170 | |
| 3171 #define CHECK_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ | |
| 3172 valid &= check_offset(klass_name, cpp_klass_name :: field_name ## _offset, #field_name, field_sig) | |
| 3173 | |
|
165
437d03ea40b1
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kvn
parents:
132
diff
changeset
|
3174 #define CHECK_LONG_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
|
437d03ea40b1
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kvn
parents:
132
diff
changeset
|
3175 valid &= check_offset(klass_name, cpp_klass_name :: long_ ## field_name ## _offset, #field_name, field_sig) |
|
437d03ea40b1
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diff
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|
3176 |
| 0 | 3177 #define CHECK_STATIC_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
| 3178 valid &= check_static_offset(klass_name, cpp_klass_name :: static_ ## field_name ## _offset, #field_name, field_sig) | |
| 3179 | |
|
132
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|
3180 #define CHECK_CONSTANT(klass_name, cpp_klass_name, field_name, field_sig) \ |
|
60b728ec77c1
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113
diff
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|
3181 valid &= check_constant(klass_name, cpp_klass_name :: field_name, #field_name, field_sig) |
|
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|
3182 |
| 0 | 3183 // java.lang.String |
| 3184 | |
| 3185 CHECK_OFFSET("java/lang/String", java_lang_String, value, "[C"); | |
| 3186 CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I"); | |
| 3187 CHECK_OFFSET("java/lang/String", java_lang_String, count, "I"); | |
| 3188 CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I"); | |
| 3189 | |
| 3190 // java.lang.Class | |
| 3191 | |
| 3192 // Fake fields | |
| 3193 // CHECK_OFFSET("java/lang/Class", java_lang_Class, klass); // %%% this needs to be checked | |
| 3194 // CHECK_OFFSET("java/lang/Class", java_lang_Class, array_klass); // %%% this needs to be checked | |
| 3195 // CHECK_OFFSET("java/lang/Class", java_lang_Class, resolved_constructor); // %%% this needs to be checked | |
| 3196 | |
| 3197 // java.lang.Throwable | |
| 3198 | |
| 3199 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, backtrace, "Ljava/lang/Object;"); | |
| 3200 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, detailMessage, "Ljava/lang/String;"); | |
| 3201 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, cause, "Ljava/lang/Throwable;"); | |
| 3202 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, stackTrace, "[Ljava/lang/StackTraceElement;"); | |
| 3203 | |
| 3204 // Boxed primitive objects (java_lang_boxing_object) | |
| 3205 | |
| 3206 CHECK_OFFSET("java/lang/Boolean", java_lang_boxing_object, value, "Z"); | |
| 3207 CHECK_OFFSET("java/lang/Character", java_lang_boxing_object, value, "C"); | |
| 3208 CHECK_OFFSET("java/lang/Float", java_lang_boxing_object, value, "F"); | |
|
165
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kvn
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132
diff
changeset
|
3209 CHECK_LONG_OFFSET("java/lang/Double", java_lang_boxing_object, value, "D"); |
| 0 | 3210 CHECK_OFFSET("java/lang/Byte", java_lang_boxing_object, value, "B"); |
| 3211 CHECK_OFFSET("java/lang/Short", java_lang_boxing_object, value, "S"); | |
| 3212 CHECK_OFFSET("java/lang/Integer", java_lang_boxing_object, value, "I"); | |
|
165
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|
3213 CHECK_LONG_OFFSET("java/lang/Long", java_lang_boxing_object, value, "J"); |
| 0 | 3214 |
| 3215 // java.lang.ClassLoader | |
| 3216 | |
| 3217 CHECK_OFFSET("java/lang/ClassLoader", java_lang_ClassLoader, parent, "Ljava/lang/ClassLoader;"); | |
| 3218 | |
| 3219 // java.lang.System | |
| 3220 | |
| 3221 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, in, "Ljava/io/InputStream;"); | |
| 3222 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, out, "Ljava/io/PrintStream;"); | |
| 3223 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, err, "Ljava/io/PrintStream;"); | |
| 3224 | |
| 3225 // java.lang.StackTraceElement | |
| 3226 | |
| 3227 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClass, "Ljava/lang/String;"); | |
| 3228 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, methodName, "Ljava/lang/String;"); | |
| 3229 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, fileName, "Ljava/lang/String;"); | |
| 3230 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, lineNumber, "I"); | |
| 3231 | |
| 3232 // java.lang.ref.Reference | |
| 3233 | |
| 3234 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, referent, "Ljava/lang/Object;"); | |
| 3235 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, queue, "Ljava/lang/ref/ReferenceQueue;"); | |
| 3236 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, next, "Ljava/lang/ref/Reference;"); | |
| 3237 // Fake field | |
| 3238 //CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, discovered, "Ljava/lang/ref/Reference;"); | |
| 3239 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, lock, "Ljava/lang/ref/Reference$Lock;"); | |
| 3240 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, pending, "Ljava/lang/ref/Reference;"); | |
| 3241 | |
| 3242 // java.lang.ref.SoftReference | |
| 3243 | |
| 3244 CHECK_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, timestamp, "J"); | |
| 3245 CHECK_STATIC_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, clock, "J"); | |
| 3246 | |
| 3247 // java.lang.AssertionStatusDirectives | |
| 3248 // | |
| 3249 // The CheckAssertionStatusDirectives boolean can be removed from here and | |
| 3250 // globals.hpp after the AssertionStatusDirectives class has been integrated | |
| 3251 // into merlin "for some time." Without it, the vm will fail with early | |
| 3252 // merlin builds. | |
| 3253 | |
| 3254 if (CheckAssertionStatusDirectives && JDK_Version::is_gte_jdk14x_version()) { | |
| 3255 const char* nm = "java/lang/AssertionStatusDirectives"; | |
| 3256 const char* sig = "[Ljava/lang/String;"; | |
| 3257 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classes, sig); | |
| 3258 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classEnabled, "[Z"); | |
| 3259 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packages, sig); | |
| 3260 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packageEnabled, "[Z"); | |
| 3261 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, deflt, "Z"); | |
| 3262 } | |
| 3263 | |
| 3264 if (!valid) vm_exit_during_initialization("Hard-coded field offset verification failed"); | |
| 3265 } | |
| 3266 | |
| 3267 #endif // PRODUCT | |
| 3268 | |
| 3938 | 3269 int InjectedField::compute_offset() { |
| 3270 klassOop klass_oop = klass(); | |
| 3271 for (AllFieldStream fs(instanceKlass::cast(klass_oop)); !fs.done(); fs.next()) { | |
| 3272 if (!may_be_java && !fs.access_flags().is_internal()) { | |
| 3273 // Only look at injected fields | |
| 3274 continue; | |
| 3275 } | |
| 3276 if (fs.name() == name() && fs.signature() == signature()) { | |
| 3277 return fs.offset(); | |
| 3278 } | |
| 3279 } | |
| 3280 ResourceMark rm; | |
| 3281 tty->print_cr("Invalid layout of %s at %s", instanceKlass::cast(klass_oop)->external_name(), name()->as_C_string()); | |
| 3282 fatal("Invalid layout of preloaded class"); | |
| 3283 return -1; | |
| 3284 } | |
| 3285 | |
| 0 | 3286 void javaClasses_init() { |
| 3287 JavaClasses::compute_offsets(); | |
| 3288 JavaClasses::check_offsets(); | |
| 3289 FilteredFieldsMap::initialize(); // must be done after computing offsets. | |
| 3290 } |