Mercurial > hg > truffle
annotate src/share/vm/classfile/javaClasses.cpp @ 7610:ed6154d7d259
8005590: java_lang_Class injected field resolved_constructor appears unused
Reviewed-by: coleenp, dholmes
| author | stefank |
|---|---|
| date | Tue, 15 Jan 2013 13:32:13 +0100 |
| parents | ade95d680b42 |
| children | c73c3f2c5b3b |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 6057 | 2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 6162 | 26 #include "classfile/altHashing.hpp" |
| 1972 | 27 #include "classfile/javaClasses.hpp" |
| 28 #include "classfile/symbolTable.hpp" | |
| 29 #include "classfile/vmSymbols.hpp" | |
| 30 #include "code/debugInfo.hpp" | |
| 31 #include "code/pcDesc.hpp" | |
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32 #include "compiler/compilerOracle.hpp" |
| 1972 | 33 #include "interpreter/interpreter.hpp" |
| 34 #include "memory/oopFactory.hpp" | |
| 35 #include "memory/resourceArea.hpp" | |
| 36 #include "memory/universe.inline.hpp" | |
| 3938 | 37 #include "oops/fieldStreams.hpp" |
| 1972 | 38 #include "oops/instanceKlass.hpp" |
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39 #include "oops/instanceMirrorKlass.hpp" |
| 1972 | 40 #include "oops/klass.hpp" |
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41 #include "oops/method.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" | |
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50 #include "runtime/thread.inline.hpp" |
| 1972 | 51 #include "runtime/vframe.hpp" |
| 52 #include "utilities/preserveException.hpp" | |
| 0 | 53 |
| 3938 | 54 #define INJECTED_FIELD_COMPUTE_OFFSET(klass, name, signature, may_be_java) \ |
| 55 klass::_##name##_offset = JavaClasses::compute_injected_offset(JavaClasses::klass##_##name##_enum); | |
| 56 | |
| 57 #define DECLARE_INJECTED_FIELD(klass, name, signature, may_be_java) \ | |
| 58 { SystemDictionary::WK_KLASS_ENUM_NAME(klass), vmSymbols::VM_SYMBOL_ENUM_NAME(name##_name), vmSymbols::VM_SYMBOL_ENUM_NAME(signature), may_be_java }, | |
| 59 | |
| 60 InjectedField JavaClasses::_injected_fields[] = { | |
| 61 ALL_INJECTED_FIELDS(DECLARE_INJECTED_FIELD) | |
| 62 }; | |
| 63 | |
| 64 int JavaClasses::compute_injected_offset(InjectedFieldID id) { | |
| 65 return _injected_fields[id].compute_offset(); | |
| 66 } | |
| 67 | |
| 68 | |
| 69 InjectedField* JavaClasses::get_injected(Symbol* class_name, int* field_count) { | |
| 70 *field_count = 0; | |
| 71 | |
| 72 vmSymbols::SID sid = vmSymbols::find_sid(class_name); | |
| 73 if (sid == vmSymbols::NO_SID) { | |
| 74 // Only well known classes can inject fields | |
| 75 return NULL; | |
| 76 } | |
| 77 | |
| 78 int count = 0; | |
| 79 int start = -1; | |
| 80 | |
| 81 #define LOOKUP_INJECTED_FIELD(klass, name, signature, may_be_java) \ | |
| 82 if (sid == vmSymbols::VM_SYMBOL_ENUM_NAME(klass)) { \ | |
| 83 count++; \ | |
| 84 if (start == -1) start = klass##_##name##_enum; \ | |
| 85 } | |
| 86 ALL_INJECTED_FIELDS(LOOKUP_INJECTED_FIELD); | |
| 87 #undef LOOKUP_INJECTED_FIELD | |
| 88 | |
| 89 if (start != -1) { | |
| 90 *field_count = count; | |
| 91 return _injected_fields + start; | |
| 92 } | |
| 93 return NULL; | |
| 94 } | |
| 95 | |
| 96 | |
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97 static bool find_field(InstanceKlass* ik, |
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98 Symbol* name_symbol, Symbol* signature_symbol, |
| 710 | 99 fieldDescriptor* fd, |
| 100 bool allow_super = false) { | |
| 101 if (allow_super) | |
| 102 return ik->find_field(name_symbol, signature_symbol, fd) != NULL; | |
| 103 else | |
| 104 return ik->find_local_field(name_symbol, signature_symbol, fd); | |
| 105 } | |
| 106 | |
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107 // Helpful routine for computing field offsets at run time rather than hardcoding them |
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108 static void |
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109 compute_offset(int &dest_offset, |
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110 Klass* klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
| 710 | 111 bool allow_super = false) { |
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112 fieldDescriptor fd; |
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113 InstanceKlass* ik = InstanceKlass::cast(klass_oop); |
| 710 | 114 if (!find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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115 ResourceMark rm; |
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116 tty->print_cr("Invalid layout of %s at %s", ik->external_name(), name_symbol->as_C_string()); |
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117 #ifndef PRODUCT |
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118 klass_oop->print(); |
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119 tty->print_cr("all fields:"); |
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120 for (AllFieldStream fs(InstanceKlass::cast(klass_oop)); !fs.done(); fs.next()) { |
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121 tty->print_cr(" name: %s, sig: %s, flags: %08x", fs.name()->as_C_string(), fs.signature()->as_C_string(), fs.access_flags().as_int()); |
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122 } |
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123 #endif //PRODUCT |
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124 fatal("Invalid layout of preloaded class"); |
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125 } |
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126 dest_offset = fd.offset(); |
| 0 | 127 } |
| 128 | |
| 129 // Same as above but for "optional" offsets that might not be present in certain JDK versions | |
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130 static void |
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131 compute_optional_offset(int& dest_offset, |
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132 Klass* klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
| 710 | 133 bool allow_super = false) { |
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134 fieldDescriptor fd; |
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135 InstanceKlass* ik = InstanceKlass::cast(klass_oop); |
| 710 | 136 if (find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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137 dest_offset = fd.offset(); |
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138 } |
| 0 | 139 } |
| 140 | |
| 710 | 141 |
| 6057 | 142 int java_lang_String::value_offset = 0; |
| 143 int java_lang_String::offset_offset = 0; | |
| 144 int java_lang_String::count_offset = 0; | |
| 145 int java_lang_String::hash_offset = 0; | |
| 146 | |
| 147 bool java_lang_String::initialized = false; | |
| 148 | |
| 149 void java_lang_String::compute_offsets() { | |
| 150 assert(!initialized, "offsets should be initialized only once"); | |
| 151 | |
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152 Klass* k = SystemDictionary::String_klass(); |
| 6057 | 153 compute_offset(value_offset, k, vmSymbols::value_name(), vmSymbols::char_array_signature()); |
| 154 compute_optional_offset(offset_offset, k, vmSymbols::offset_name(), vmSymbols::int_signature()); | |
| 155 compute_optional_offset(count_offset, k, vmSymbols::count_name(), vmSymbols::int_signature()); | |
| 156 compute_optional_offset(hash_offset, k, vmSymbols::hash_name(), vmSymbols::int_signature()); | |
| 157 | |
| 158 initialized = true; | |
| 159 } | |
| 160 | |
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161 Handle java_lang_String::basic_create(int length, TRAPS) { |
| 6057 | 162 assert(initialized, "Must be initialized"); |
| 0 | 163 // Create the String object first, so there's a chance that the String |
| 164 // and the char array it points to end up in the same cache line. | |
| 165 oop obj; | |
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166 obj = InstanceKlass::cast(SystemDictionary::String_klass())->allocate_instance(CHECK_NH); |
| 0 | 167 |
| 168 // Create the char array. The String object must be handlized here | |
| 169 // because GC can happen as a result of the allocation attempt. | |
| 170 Handle h_obj(THREAD, obj); | |
| 171 typeArrayOop buffer; | |
| 172 buffer = oopFactory::new_charArray(length, CHECK_NH); | |
| 173 | |
| 174 // Point the String at the char array | |
| 175 obj = h_obj(); | |
| 176 set_value(obj, buffer); | |
| 177 // No need to zero the offset, allocation zero'ed the entire String object | |
| 178 assert(offset(obj) == 0, "initial String offset should be zero"); | |
| 179 //set_offset(obj, 0); | |
| 180 set_count(obj, length); | |
| 181 | |
| 182 return h_obj; | |
| 183 } | |
| 184 | |
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185 Handle java_lang_String::create_from_unicode(jchar* unicode, int length, TRAPS) { |
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186 Handle h_obj = basic_create(length, CHECK_NH); |
| 0 | 187 typeArrayOop buffer = value(h_obj()); |
| 188 for (int index = 0; index < length; index++) { | |
| 189 buffer->char_at_put(index, unicode[index]); | |
| 190 } | |
| 191 return h_obj; | |
| 192 } | |
| 193 | |
| 194 oop java_lang_String::create_oop_from_unicode(jchar* unicode, int length, TRAPS) { | |
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195 Handle h_obj = create_from_unicode(unicode, length, CHECK_0); |
| 0 | 196 return h_obj(); |
| 197 } | |
| 198 | |
| 199 Handle java_lang_String::create_from_str(const char* utf8_str, TRAPS) { | |
| 200 if (utf8_str == NULL) { | |
| 201 return Handle(); | |
| 202 } | |
| 203 int length = UTF8::unicode_length(utf8_str); | |
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204 Handle h_obj = basic_create(length, CHECK_NH); |
| 0 | 205 if (length > 0) { |
| 206 UTF8::convert_to_unicode(utf8_str, value(h_obj())->char_at_addr(0), length); | |
| 207 } | |
| 208 return h_obj; | |
| 209 } | |
| 210 | |
| 211 oop java_lang_String::create_oop_from_str(const char* utf8_str, TRAPS) { | |
| 212 Handle h_obj = create_from_str(utf8_str, CHECK_0); | |
| 213 return h_obj(); | |
| 214 } | |
| 215 | |
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216 Handle java_lang_String::create_from_symbol(Symbol* symbol, TRAPS) { |
| 0 | 217 int length = UTF8::unicode_length((char*)symbol->bytes(), symbol->utf8_length()); |
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218 Handle h_obj = basic_create(length, CHECK_NH); |
| 0 | 219 if (length > 0) { |
| 220 UTF8::convert_to_unicode((char*)symbol->bytes(), value(h_obj())->char_at_addr(0), length); | |
| 221 } | |
| 222 return h_obj; | |
| 223 } | |
| 224 | |
| 225 // Converts a C string to a Java String based on current encoding | |
| 226 Handle java_lang_String::create_from_platform_dependent_str(const char* str, TRAPS) { | |
| 227 assert(str != NULL, "bad arguments"); | |
| 228 | |
| 229 typedef jstring (*to_java_string_fn_t)(JNIEnv*, const char *); | |
| 230 static to_java_string_fn_t _to_java_string_fn = NULL; | |
| 231 | |
| 232 if (_to_java_string_fn == NULL) { | |
| 233 void *lib_handle = os::native_java_library(); | |
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234 _to_java_string_fn = CAST_TO_FN_PTR(to_java_string_fn_t, os::dll_lookup(lib_handle, "NewStringPlatform")); |
| 0 | 235 if (_to_java_string_fn == NULL) { |
| 236 fatal("NewStringPlatform missing"); | |
| 237 } | |
| 238 } | |
| 239 | |
| 240 jstring js = NULL; | |
| 241 { JavaThread* thread = (JavaThread*)THREAD; | |
| 242 assert(thread->is_Java_thread(), "must be java thread"); | |
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243 HandleMark hm(thread); |
| 0 | 244 ThreadToNativeFromVM ttn(thread); |
| 245 js = (_to_java_string_fn)(thread->jni_environment(), str); | |
| 246 } | |
| 247 return Handle(THREAD, JNIHandles::resolve(js)); | |
| 248 } | |
| 249 | |
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250 // Converts a Java String to a native C string that can be used for |
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251 // native OS calls. |
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252 char* java_lang_String::as_platform_dependent_str(Handle java_string, TRAPS) { |
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253 |
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254 typedef char* (*to_platform_string_fn_t)(JNIEnv*, jstring, bool*); |
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255 static to_platform_string_fn_t _to_platform_string_fn = NULL; |
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256 |
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257 if (_to_platform_string_fn == NULL) { |
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258 void *lib_handle = os::native_java_library(); |
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259 _to_platform_string_fn = CAST_TO_FN_PTR(to_platform_string_fn_t, os::dll_lookup(lib_handle, "GetStringPlatformChars")); |
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260 if (_to_platform_string_fn == NULL) { |
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261 fatal("GetStringPlatformChars missing"); |
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262 } |
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263 } |
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264 |
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265 char *native_platform_string; |
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266 { JavaThread* thread = (JavaThread*)THREAD; |
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267 assert(thread->is_Java_thread(), "must be java thread"); |
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268 JNIEnv *env = thread->jni_environment(); |
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269 jstring js = (jstring) JNIHandles::make_local(env, java_string()); |
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270 bool is_copy; |
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271 HandleMark hm(thread); |
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272 ThreadToNativeFromVM ttn(thread); |
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273 native_platform_string = (_to_platform_string_fn)(env, js, &is_copy); |
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274 assert(is_copy == JNI_TRUE, "is_copy value changed"); |
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275 JNIHandles::destroy_local(js); |
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276 } |
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277 return native_platform_string; |
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278 } |
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279 |
| 0 | 280 Handle java_lang_String::char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS) { |
| 281 oop obj = java_string(); | |
| 282 // Typical usage is to convert all '/' to '.' in string. | |
| 283 typeArrayOop value = java_lang_String::value(obj); | |
| 284 int offset = java_lang_String::offset(obj); | |
| 285 int length = java_lang_String::length(obj); | |
| 286 | |
| 287 // First check if any from_char exist | |
| 288 int index; // Declared outside, used later | |
| 289 for (index = 0; index < length; index++) { | |
| 290 if (value->char_at(index + offset) == from_char) { | |
| 291 break; | |
| 292 } | |
| 293 } | |
| 294 if (index == length) { | |
| 295 // No from_char, so do not copy. | |
| 296 return java_string; | |
| 297 } | |
| 298 | |
| 299 // Create new UNICODE buffer. Must handlize value because GC | |
| 300 // may happen during String and char array creation. | |
| 301 typeArrayHandle h_value(THREAD, value); | |
|
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302 Handle string = basic_create(length, CHECK_NH); |
| 0 | 303 |
| 304 typeArrayOop from_buffer = h_value(); | |
| 305 typeArrayOop to_buffer = java_lang_String::value(string()); | |
| 306 | |
| 307 // Copy contents | |
| 308 for (index = 0; index < length; index++) { | |
| 309 jchar c = from_buffer->char_at(index + offset); | |
| 310 if (c == from_char) { | |
| 311 c = to_char; | |
| 312 } | |
| 313 to_buffer->char_at_put(index, c); | |
| 314 } | |
| 315 return string; | |
| 316 } | |
| 317 | |
| 318 jchar* java_lang_String::as_unicode_string(oop java_string, int& length) { | |
| 319 typeArrayOop value = java_lang_String::value(java_string); | |
| 320 int offset = java_lang_String::offset(java_string); | |
| 321 length = java_lang_String::length(java_string); | |
| 322 | |
| 323 jchar* result = NEW_RESOURCE_ARRAY(jchar, length); | |
| 324 for (int index = 0; index < length; index++) { | |
| 325 result[index] = value->char_at(index + offset); | |
| 326 } | |
| 327 return result; | |
| 328 } | |
| 329 | |
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330 unsigned int java_lang_String::hash_code(oop java_string) { |
| 6162 | 331 int length = java_lang_String::length(java_string); |
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332 // Zero length string will hash to zero with String.hashCode() function. |
| 6162 | 333 if (length == 0) return 0; |
| 334 | |
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335 typeArrayOop value = java_lang_String::value(java_string); |
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336 int offset = java_lang_String::offset(java_string); |
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337 return java_lang_String::hash_code(value->char_at_addr(offset), length); |
| 6162 | 338 } |
| 339 | |
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340 char* java_lang_String::as_quoted_ascii(oop java_string) { |
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341 typeArrayOop value = java_lang_String::value(java_string); |
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342 int offset = java_lang_String::offset(java_string); |
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343 int length = java_lang_String::length(java_string); |
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344 |
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345 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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346 if (base == NULL) return NULL; |
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347 |
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348 int result_length = UNICODE::quoted_ascii_length(base, length) + 1; |
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349 char* result = NEW_RESOURCE_ARRAY(char, result_length); |
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350 UNICODE::as_quoted_ascii(base, length, result, result_length); |
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351 assert(result_length >= length + 1, "must not be shorter"); |
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352 assert(result_length == (int)strlen(result) + 1, "must match"); |
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353 return result; |
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354 } |
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355 |
| 6162 | 356 unsigned int java_lang_String::hash_string(oop java_string) { |
|
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357 int length = java_lang_String::length(java_string); |
| 6162 | 358 // Zero length string doesn't hash necessarily hash to zero. |
| 359 if (length == 0) { | |
| 360 return StringTable::hash_string(NULL, 0); | |
| 361 } | |
| 362 | |
| 363 typeArrayOop value = java_lang_String::value(java_string); | |
| 364 int offset = java_lang_String::offset(java_string); | |
| 365 return StringTable::hash_string(value->char_at_addr(offset), length); | |
|
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366 } |
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367 |
|
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368 Symbol* java_lang_String::as_symbol(Handle java_string, TRAPS) { |
| 0 | 369 oop obj = java_string(); |
| 370 typeArrayOop value = java_lang_String::value(obj); | |
| 371 int offset = java_lang_String::offset(obj); | |
| 372 int length = java_lang_String::length(obj); | |
|
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373 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
|
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374 Symbol* sym = SymbolTable::lookup_unicode(base, length, THREAD); |
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375 return sym; |
| 0 | 376 } |
| 377 | |
|
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378 Symbol* java_lang_String::as_symbol_or_null(oop java_string) { |
|
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379 typeArrayOop value = java_lang_String::value(java_string); |
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380 int offset = java_lang_String::offset(java_string); |
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381 int length = java_lang_String::length(java_string); |
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382 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
|
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383 return SymbolTable::probe_unicode(base, length); |
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384 } |
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385 |
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|
386 |
| 0 | 387 int java_lang_String::utf8_length(oop java_string) { |
| 388 typeArrayOop value = java_lang_String::value(java_string); | |
| 389 int offset = java_lang_String::offset(java_string); | |
| 390 int length = java_lang_String::length(java_string); | |
| 391 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
| 392 return UNICODE::utf8_length(position, length); | |
| 393 } | |
| 394 | |
| 395 char* java_lang_String::as_utf8_string(oop java_string) { | |
| 396 typeArrayOop value = java_lang_String::value(java_string); | |
| 397 int offset = java_lang_String::offset(java_string); | |
| 398 int length = java_lang_String::length(java_string); | |
| 399 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
| 400 return UNICODE::as_utf8(position, length); | |
| 401 } | |
| 402 | |
|
1989
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6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
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1980
diff
changeset
|
403 char* java_lang_String::as_utf8_string(oop java_string, char* buf, int buflen) { |
|
017cd8bce8a8
6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
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diff
changeset
|
404 typeArrayOop value = java_lang_String::value(java_string); |
|
017cd8bce8a8
6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
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|
405 int offset = java_lang_String::offset(java_string); |
|
017cd8bce8a8
6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
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diff
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|
406 int length = java_lang_String::length(java_string); |
|
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|
407 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); |
|
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|
408 return UNICODE::as_utf8(position, length, buf, buflen); |
|
017cd8bce8a8
6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
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diff
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|
409 } |
|
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diff
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|
410 |
| 0 | 411 char* java_lang_String::as_utf8_string(oop java_string, int start, int len) { |
| 412 typeArrayOop value = java_lang_String::value(java_string); | |
| 413 int offset = java_lang_String::offset(java_string); | |
| 414 int length = java_lang_String::length(java_string); | |
| 415 assert(start + len <= length, "just checking"); | |
| 416 jchar* position = value->char_at_addr(offset + start); | |
| 417 return UNICODE::as_utf8(position, len); | |
| 418 } | |
| 419 | |
| 420 bool java_lang_String::equals(oop java_string, jchar* chars, int len) { | |
| 6867 | 421 assert(java_string->klass() == SystemDictionary::String_klass(), |
| 0 | 422 "must be java_string"); |
| 423 typeArrayOop value = java_lang_String::value(java_string); | |
| 424 int offset = java_lang_String::offset(java_string); | |
| 425 int length = java_lang_String::length(java_string); | |
| 426 if (length != len) { | |
| 427 return false; | |
| 428 } | |
| 429 for (int i = 0; i < len; i++) { | |
| 430 if (value->char_at(i + offset) != chars[i]) { | |
| 431 return false; | |
| 432 } | |
| 433 } | |
| 434 return true; | |
| 435 } | |
| 436 | |
| 437 void java_lang_String::print(Handle java_string, outputStream* st) { | |
| 438 oop obj = java_string(); | |
| 1142 | 439 assert(obj->klass() == SystemDictionary::String_klass(), "must be java_string"); |
| 0 | 440 typeArrayOop value = java_lang_String::value(obj); |
| 441 int offset = java_lang_String::offset(obj); | |
| 442 int length = java_lang_String::length(obj); | |
| 443 | |
| 444 int end = MIN2(length, 100); | |
| 445 if (value == NULL) { | |
| 446 // This can happen if, e.g., printing a String | |
| 447 // object before its initializer has been called | |
| 448 st->print_cr("NULL"); | |
| 449 } else { | |
| 450 st->print("\""); | |
| 451 for (int index = 0; index < length; index++) { | |
| 452 st->print("%c", value->char_at(index + offset)); | |
| 453 } | |
| 454 st->print("\""); | |
| 455 } | |
| 456 } | |
| 457 | |
|
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458 static void initialize_static_field(fieldDescriptor* fd, TRAPS) { |
|
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|
459 Handle mirror (THREAD, fd->field_holder()->java_mirror()); |
|
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460 assert(mirror.not_null() && fd->is_static(), "just checking"); |
|
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461 if (fd->has_initial_value()) { |
|
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462 BasicType t = fd->field_type(); |
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463 switch (t) { |
|
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464 case T_BYTE: |
|
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|
465 mirror()->byte_field_put(fd->offset(), fd->int_initial_value()); |
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466 break; |
|
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|
467 case T_BOOLEAN: |
|
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468 mirror()->bool_field_put(fd->offset(), fd->int_initial_value()); |
|
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469 break; |
|
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470 case T_CHAR: |
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471 mirror()->char_field_put(fd->offset(), fd->int_initial_value()); |
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472 break; |
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|
473 case T_SHORT: |
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|
474 mirror()->short_field_put(fd->offset(), fd->int_initial_value()); |
|
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475 break; |
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|
476 case T_INT: |
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|
477 mirror()->int_field_put(fd->offset(), fd->int_initial_value()); |
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478 break; |
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|
479 case T_FLOAT: |
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480 mirror()->float_field_put(fd->offset(), fd->float_initial_value()); |
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481 break; |
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|
482 case T_DOUBLE: |
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483 mirror()->double_field_put(fd->offset(), fd->double_initial_value()); |
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|
484 break; |
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|
485 case T_LONG: |
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486 mirror()->long_field_put(fd->offset(), fd->long_initial_value()); |
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|
487 break; |
|
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|
488 case T_OBJECT: |
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489 { |
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490 #ifdef ASSERT |
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491 TempNewSymbol sym = SymbolTable::new_symbol("Ljava/lang/String;", CHECK); |
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492 assert(fd->signature() == sym, "just checking"); |
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493 #endif |
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494 oop string = fd->string_initial_value(CHECK); |
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495 mirror()->obj_field_put(fd->offset(), string); |
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496 } |
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497 break; |
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498 default: |
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499 THROW_MSG(vmSymbols::java_lang_ClassFormatError(), |
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500 "Illegal ConstantValue attribute in class file"); |
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501 } |
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502 } |
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503 } |
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504 |
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505 |
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506 void java_lang_Class::fixup_mirror(KlassHandle k, TRAPS) { |
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507 assert(InstanceMirrorKlass::offset_of_static_fields() != 0, "must have been computed already"); |
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508 |
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509 // If the offset was read from the shared archive, it was fixed up already |
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510 if (!k->is_shared()) { |
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511 if (k->oop_is_instance()) { |
| 3938 | 512 // During bootstrap, java.lang.Class wasn't loaded so static field |
| 513 // offsets were computed without the size added it. Go back and | |
| 514 // update all the static field offsets to included the size. | |
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515 for (JavaFieldStream fs(InstanceKlass::cast(k())); !fs.done(); fs.next()) { |
| 3938 | 516 if (fs.access_flags().is_static()) { |
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517 int real_offset = fs.offset() + InstanceMirrorKlass::offset_of_static_fields(); |
| 3938 | 518 fs.set_offset(real_offset); |
| 519 } | |
| 520 } | |
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521 } |
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522 } |
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523 create_mirror(k, CHECK); |
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524 } |
| 0 | 525 |
| 526 oop java_lang_Class::create_mirror(KlassHandle k, TRAPS) { | |
| 527 assert(k->java_mirror() == NULL, "should only assign mirror once"); | |
| 528 // Use this moment of initialization to cache modifier_flags also, | |
| 529 // to support Class.getModifiers(). Instance classes recalculate | |
| 530 // the cached flags after the class file is parsed, but before the | |
| 531 // class is put into the system dictionary. | |
| 532 int computed_modifiers = k->compute_modifier_flags(CHECK_0); | |
| 533 k->set_modifier_flags(computed_modifiers); | |
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534 // Class_klass has to be loaded because it is used to allocate |
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535 // the mirror. |
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536 if (SystemDictionary::Class_klass_loaded()) { |
| 0 | 537 // Allocate mirror (java.lang.Class instance) |
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538 Handle mirror = InstanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(k, CHECK_0); |
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539 |
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540 InstanceMirrorKlass* mk = InstanceMirrorKlass::cast(mirror->klass()); |
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541 java_lang_Class::set_static_oop_field_count(mirror(), mk->compute_static_oop_field_count(mirror())); |
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542 |
| 0 | 543 // It might also have a component mirror. This mirror must already exist. |
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544 if (k->oop_is_array()) { |
| 0 | 545 Handle comp_mirror; |
| 546 if (k->oop_is_typeArray()) { | |
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547 BasicType type = TypeArrayKlass::cast(k())->element_type(); |
| 0 | 548 comp_mirror = Universe::java_mirror(type); |
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549 } else { |
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550 assert(k->oop_is_objArray(), "Must be"); |
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551 Klass* element_klass = ObjArrayKlass::cast(k())->element_klass(); |
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552 assert(element_klass != NULL, "Must have an element klass"); |
| 6983 | 553 comp_mirror = element_klass->java_mirror(); |
| 0 | 554 } |
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555 assert(comp_mirror.not_null(), "must have a mirror"); |
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556 |
| 0 | 557 // Two-way link between the array klass and its component mirror: |
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558 ArrayKlass::cast(k())->set_component_mirror(comp_mirror()); |
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559 set_array_klass(comp_mirror(), k()); |
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560 } else { |
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561 assert(k->oop_is_instance(), "Must be"); |
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562 // Initialize static fields |
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563 InstanceKlass::cast(k())->do_local_static_fields(&initialize_static_field, CHECK_NULL); |
| 0 | 564 } |
| 565 return mirror(); | |
| 566 } else { | |
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567 if (fixup_mirror_list() == NULL) { |
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568 GrowableArray<Klass*>* list = |
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569 new (ResourceObj::C_HEAP, mtClass) GrowableArray<Klass*>(40, true); |
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570 set_fixup_mirror_list(list); |
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571 } |
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572 fixup_mirror_list()->push(k()); |
| 0 | 573 return NULL; |
| 574 } | |
| 575 } | |
| 576 | |
| 577 | |
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578 |
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579 int java_lang_Class::oop_size(oop java_class) { |
| 3938 | 580 assert(_oop_size_offset != 0, "must be set"); |
| 581 return java_class->int_field(_oop_size_offset); | |
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582 } |
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583 void java_lang_Class::set_oop_size(oop java_class, int size) { |
| 3938 | 584 assert(_oop_size_offset != 0, "must be set"); |
| 585 java_class->int_field_put(_oop_size_offset, size); | |
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586 } |
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587 int java_lang_Class::static_oop_field_count(oop java_class) { |
| 3938 | 588 assert(_static_oop_field_count_offset != 0, "must be set"); |
| 589 return java_class->int_field(_static_oop_field_count_offset); | |
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590 } |
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591 void java_lang_Class::set_static_oop_field_count(oop java_class, int size) { |
| 3938 | 592 assert(_static_oop_field_count_offset != 0, "must be set"); |
| 593 java_class->int_field_put(_static_oop_field_count_offset, size); | |
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594 } |
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595 |
| 0 | 596 oop java_lang_Class::create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS) { |
| 597 // This should be improved by adding a field at the Java level or by | |
| 598 // introducing a new VM klass (see comment in ClassFileParser) | |
|
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599 oop java_class = InstanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(NULL, CHECK_0); |
| 0 | 600 if (type != T_VOID) { |
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601 Klass* aklass = Universe::typeArrayKlassObj(type); |
| 0 | 602 assert(aklass != NULL, "correct bootstrap"); |
| 603 set_array_klass(java_class, aklass); | |
| 604 } | |
| 4009 | 605 #ifdef ASSERT |
|
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606 InstanceMirrorKlass* mk = InstanceMirrorKlass::cast(SystemDictionary::Class_klass()); |
| 4009 | 607 assert(java_lang_Class::static_oop_field_count(java_class) == 0, "should have been zeroed by allocation"); |
| 608 #endif | |
| 0 | 609 return java_class; |
| 610 } | |
| 611 | |
| 612 | |
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613 Klass* java_lang_Class::as_Klass(oop java_class) { |
| 0 | 614 //%note memory_2 |
|
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615 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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616 Klass* k = ((Klass*)java_class->metadata_field(_klass_offset)); |
| 0 | 617 assert(k == NULL || k->is_klass(), "type check"); |
| 618 return k; | |
| 619 } | |
| 620 | |
| 621 | |
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622 void java_lang_Class::set_klass(oop java_class, Klass* klass) { |
| 4009 | 623 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
|
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624 java_class->metadata_field_put(_klass_offset, klass); |
| 4009 | 625 } |
| 626 | |
| 627 | |
|
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628 void java_lang_Class::print_signature(oop java_class, outputStream* st) { |
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629 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
|
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630 Symbol* name = NULL; |
|
665
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631 bool is_instance = false; |
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632 if (is_primitive(java_class)) { |
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633 name = vmSymbols::type_signature(primitive_type(java_class)); |
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634 } else { |
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635 Klass* k = as_Klass(java_class); |
| 6983 | 636 is_instance = k->oop_is_instance(); |
| 637 name = k->name(); | |
|
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638 } |
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639 if (name == NULL) { |
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640 st->print("<null>"); |
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641 return; |
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642 } |
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643 if (is_instance) st->print("L"); |
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644 st->write((char*) name->base(), (int) name->utf8_length()); |
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645 if (is_instance) st->print(";"); |
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646 } |
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647 |
|
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648 Symbol* java_lang_Class::as_signature(oop java_class, bool intern_if_not_found, TRAPS) { |
|
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649 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
|
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650 Symbol* name; |
|
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651 if (is_primitive(java_class)) { |
|
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652 name = vmSymbols::type_signature(primitive_type(java_class)); |
|
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653 // Because this can create a new symbol, the caller has to decrement |
|
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654 // the refcount, so make adjustment here and below for symbols returned |
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655 // that are not created or incremented due to a successful lookup. |
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656 name->increment_refcount(); |
|
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657 } else { |
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658 Klass* k = as_Klass(java_class); |
| 6983 | 659 if (!k->oop_is_instance()) { |
| 660 name = k->name(); | |
|
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661 name->increment_refcount(); |
|
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662 } else { |
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663 ResourceMark rm; |
| 6983 | 664 const char* sigstr = k->signature_name(); |
|
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665 int siglen = (int) strlen(sigstr); |
|
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666 if (!intern_if_not_found) { |
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667 name = SymbolTable::probe(sigstr, siglen); |
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668 } else { |
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669 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
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670 } |
|
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671 } |
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672 } |
|
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673 return name; |
|
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674 } |
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675 |
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676 |
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677 Klass* java_lang_Class::array_klass(oop java_class) { |
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678 Klass* k = ((Klass*)java_class->metadata_field(_array_klass_offset)); |
| 6983 | 679 assert(k == NULL || k->is_klass() && k->oop_is_array(), "should be array klass"); |
| 0 | 680 return k; |
| 681 } | |
| 682 | |
| 683 | |
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684 void java_lang_Class::set_array_klass(oop java_class, Klass* klass) { |
| 6983 | 685 assert(klass->is_klass() && klass->oop_is_array(), "should be array klass"); |
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686 java_class->metadata_field_put(_array_klass_offset, klass); |
| 0 | 687 } |
| 688 | |
| 689 | |
| 690 bool java_lang_Class::is_primitive(oop java_class) { | |
|
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691 // should assert: |
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692 //assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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693 bool is_primitive = (java_class->metadata_field(_klass_offset) == NULL); |
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694 |
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695 #ifdef ASSERT |
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696 if (is_primitive) { |
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697 Klass* k = ((Klass*)java_class->metadata_field(_array_klass_offset)); |
|
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698 assert(k == NULL || is_java_primitive(ArrayKlass::cast(k)->element_type()), |
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699 "Should be either the T_VOID primitive or a java primitive"); |
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700 } |
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701 #endif |
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702 |
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703 return is_primitive; |
| 0 | 704 } |
| 705 | |
| 706 | |
| 707 BasicType java_lang_Class::primitive_type(oop java_class) { | |
| 708 assert(java_lang_Class::is_primitive(java_class), "just checking"); | |
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709 Klass* ak = ((Klass*)java_class->metadata_field(_array_klass_offset)); |
| 0 | 710 BasicType type = T_VOID; |
| 711 if (ak != NULL) { | |
| 712 // Note: create_basic_type_mirror above initializes ak to a non-null value. | |
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713 type = ArrayKlass::cast(ak)->element_type(); |
| 0 | 714 } else { |
| 715 assert(java_class == Universe::void_mirror(), "only valid non-array primitive"); | |
| 716 } | |
| 717 assert(Universe::java_mirror(type) == java_class, "must be consistent"); | |
| 718 return type; | |
| 719 } | |
| 720 | |
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721 BasicType java_lang_Class::as_BasicType(oop java_class, Klass** reference_klass) { |
|
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722 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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723 if (is_primitive(java_class)) { |
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724 if (reference_klass != NULL) |
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725 (*reference_klass) = NULL; |
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726 return primitive_type(java_class); |
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727 } else { |
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728 if (reference_klass != NULL) |
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729 (*reference_klass) = as_Klass(java_class); |
|
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730 return T_OBJECT; |
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731 } |
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732 } |
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733 |
| 0 | 734 |
| 735 oop java_lang_Class::primitive_mirror(BasicType t) { | |
| 736 oop mirror = Universe::java_mirror(t); | |
| 1142 | 737 assert(mirror != NULL && mirror->is_a(SystemDictionary::Class_klass()), "must be a Class"); |
| 0 | 738 assert(java_lang_Class::is_primitive(mirror), "must be primitive"); |
| 739 return mirror; | |
| 740 } | |
| 741 | |
| 742 bool java_lang_Class::offsets_computed = false; | |
| 743 int java_lang_Class::classRedefinedCount_offset = -1; | |
| 744 | |
| 745 void java_lang_Class::compute_offsets() { | |
| 746 assert(!offsets_computed, "offsets should be initialized only once"); | |
| 747 offsets_computed = true; | |
| 748 | |
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749 Klass* klass_oop = SystemDictionary::Class_klass(); |
| 0 | 750 // The classRedefinedCount field is only present starting in 1.5, |
| 751 // so don't go fatal. | |
|
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752 compute_optional_offset(classRedefinedCount_offset, |
| 3938 | 753 klass_oop, vmSymbols::classRedefinedCount_name(), vmSymbols::int_signature()); |
| 754 | |
| 755 CLASS_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
| 0 | 756 } |
| 757 | |
| 758 int java_lang_Class::classRedefinedCount(oop the_class_mirror) { | |
| 759 if (!JDK_Version::is_gte_jdk15x_version() | |
| 760 || classRedefinedCount_offset == -1) { | |
| 761 // The classRedefinedCount field is only present starting in 1.5. | |
| 762 // If we don't have an offset for it then just return -1 as a marker. | |
| 763 return -1; | |
| 764 } | |
| 765 | |
| 766 return the_class_mirror->int_field(classRedefinedCount_offset); | |
| 767 } | |
| 768 | |
| 769 void java_lang_Class::set_classRedefinedCount(oop the_class_mirror, int value) { | |
| 770 if (!JDK_Version::is_gte_jdk15x_version() | |
| 771 || classRedefinedCount_offset == -1) { | |
| 772 // The classRedefinedCount field is only present starting in 1.5. | |
| 773 // If we don't have an offset for it then nothing to set. | |
| 774 return; | |
| 775 } | |
| 776 | |
| 777 the_class_mirror->int_field_put(classRedefinedCount_offset, value); | |
| 778 } | |
| 779 | |
| 780 | |
| 781 // Note: JDK1.1 and before had a privateInfo_offset field which was used for the | |
| 782 // platform thread structure, and a eetop offset which was used for thread | |
| 783 // local storage (and unused by the HotSpot VM). In JDK1.2 the two structures | |
| 784 // merged, so in the HotSpot VM we just use the eetop field for the thread | |
| 785 // instead of the privateInfo_offset. | |
| 786 // | |
| 787 // Note: The stackSize field is only present starting in 1.4. | |
| 788 | |
| 789 int java_lang_Thread::_name_offset = 0; | |
| 790 int java_lang_Thread::_group_offset = 0; | |
| 791 int java_lang_Thread::_contextClassLoader_offset = 0; | |
| 792 int java_lang_Thread::_inheritedAccessControlContext_offset = 0; | |
| 793 int java_lang_Thread::_priority_offset = 0; | |
| 794 int java_lang_Thread::_eetop_offset = 0; | |
| 795 int java_lang_Thread::_daemon_offset = 0; | |
| 796 int java_lang_Thread::_stillborn_offset = 0; | |
| 797 int java_lang_Thread::_stackSize_offset = 0; | |
| 798 int java_lang_Thread::_tid_offset = 0; | |
| 799 int java_lang_Thread::_thread_status_offset = 0; | |
| 800 int java_lang_Thread::_park_blocker_offset = 0; | |
| 801 int java_lang_Thread::_park_event_offset = 0 ; | |
| 802 | |
| 803 | |
| 804 void java_lang_Thread::compute_offsets() { | |
| 805 assert(_group_offset == 0, "offsets should be initialized only once"); | |
| 806 | |
|
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807 Klass* k = SystemDictionary::Thread_klass(); |
|
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808 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::char_array_signature()); |
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809 compute_offset(_group_offset, k, vmSymbols::group_name(), vmSymbols::threadgroup_signature()); |
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810 compute_offset(_contextClassLoader_offset, k, vmSymbols::contextClassLoader_name(), vmSymbols::classloader_signature()); |
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811 compute_offset(_inheritedAccessControlContext_offset, k, vmSymbols::inheritedAccessControlContext_name(), vmSymbols::accesscontrolcontext_signature()); |
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812 compute_offset(_priority_offset, k, vmSymbols::priority_name(), vmSymbols::int_signature()); |
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813 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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814 compute_offset(_eetop_offset, k, vmSymbols::eetop_name(), vmSymbols::long_signature()); |
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815 compute_offset(_stillborn_offset, k, vmSymbols::stillborn_name(), vmSymbols::bool_signature()); |
| 0 | 816 // The stackSize field is only present starting in 1.4, so don't go fatal. |
|
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817 compute_optional_offset(_stackSize_offset, k, vmSymbols::stackSize_name(), vmSymbols::long_signature()); |
| 0 | 818 // The tid and thread_status fields are only present starting in 1.5, so don't go fatal. |
|
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819 compute_optional_offset(_tid_offset, k, vmSymbols::thread_id_name(), vmSymbols::long_signature()); |
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820 compute_optional_offset(_thread_status_offset, k, vmSymbols::thread_status_name(), vmSymbols::int_signature()); |
| 0 | 821 // The parkBlocker field is only present starting in 1.6, so don't go fatal. |
|
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822 compute_optional_offset(_park_blocker_offset, k, vmSymbols::park_blocker_name(), vmSymbols::object_signature()); |
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823 compute_optional_offset(_park_event_offset, k, vmSymbols::park_event_name(), |
| 0 | 824 vmSymbols::long_signature()); |
| 825 } | |
| 826 | |
| 827 | |
| 828 JavaThread* java_lang_Thread::thread(oop java_thread) { | |
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829 return (JavaThread*)java_thread->address_field(_eetop_offset); |
| 0 | 830 } |
| 831 | |
| 832 | |
| 833 void java_lang_Thread::set_thread(oop java_thread, JavaThread* thread) { | |
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834 java_thread->address_field_put(_eetop_offset, (address)thread); |
| 0 | 835 } |
| 836 | |
| 837 | |
| 838 typeArrayOop java_lang_Thread::name(oop java_thread) { | |
| 839 oop name = java_thread->obj_field(_name_offset); | |
|
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840 assert(name == NULL || (name->is_typeArray() && TypeArrayKlass::cast(name->klass())->element_type() == T_CHAR), "just checking"); |
| 0 | 841 return typeArrayOop(name); |
| 842 } | |
| 843 | |
| 844 | |
| 845 void java_lang_Thread::set_name(oop java_thread, typeArrayOop name) { | |
| 846 assert(java_thread->obj_field(_name_offset) == NULL, "name should be NULL"); | |
| 847 java_thread->obj_field_put(_name_offset, name); | |
| 848 } | |
| 849 | |
| 850 | |
| 851 ThreadPriority java_lang_Thread::priority(oop java_thread) { | |
| 852 return (ThreadPriority)java_thread->int_field(_priority_offset); | |
| 853 } | |
| 854 | |
| 855 | |
| 856 void java_lang_Thread::set_priority(oop java_thread, ThreadPriority priority) { | |
| 857 java_thread->int_field_put(_priority_offset, priority); | |
| 858 } | |
| 859 | |
| 860 | |
| 861 oop java_lang_Thread::threadGroup(oop java_thread) { | |
| 862 return java_thread->obj_field(_group_offset); | |
| 863 } | |
| 864 | |
| 865 | |
| 866 bool java_lang_Thread::is_stillborn(oop java_thread) { | |
| 867 return java_thread->bool_field(_stillborn_offset) != 0; | |
| 868 } | |
| 869 | |
| 870 | |
| 871 // We never have reason to turn the stillborn bit off | |
| 872 void java_lang_Thread::set_stillborn(oop java_thread) { | |
| 873 java_thread->bool_field_put(_stillborn_offset, true); | |
| 874 } | |
| 875 | |
| 876 | |
| 877 bool java_lang_Thread::is_alive(oop java_thread) { | |
| 878 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
| 879 return (thr != NULL); | |
| 880 } | |
| 881 | |
| 882 | |
| 883 bool java_lang_Thread::is_daemon(oop java_thread) { | |
| 884 return java_thread->bool_field(_daemon_offset) != 0; | |
| 885 } | |
| 886 | |
| 887 | |
| 888 void java_lang_Thread::set_daemon(oop java_thread) { | |
| 889 java_thread->bool_field_put(_daemon_offset, true); | |
| 890 } | |
| 891 | |
| 892 oop java_lang_Thread::context_class_loader(oop java_thread) { | |
| 893 return java_thread->obj_field(_contextClassLoader_offset); | |
| 894 } | |
| 895 | |
| 896 oop java_lang_Thread::inherited_access_control_context(oop java_thread) { | |
| 897 return java_thread->obj_field(_inheritedAccessControlContext_offset); | |
| 898 } | |
| 899 | |
| 900 | |
| 901 jlong java_lang_Thread::stackSize(oop java_thread) { | |
| 902 // The stackSize field is only present starting in 1.4 | |
| 903 if (_stackSize_offset > 0) { | |
| 904 assert(JDK_Version::is_gte_jdk14x_version(), "sanity check"); | |
| 905 return java_thread->long_field(_stackSize_offset); | |
| 906 } else { | |
| 907 return 0; | |
| 908 } | |
| 909 } | |
| 910 | |
| 911 // Write the thread status value to threadStatus field in java.lang.Thread java class. | |
| 912 void java_lang_Thread::set_thread_status(oop java_thread, | |
| 913 java_lang_Thread::ThreadStatus status) { | |
| 914 assert(JavaThread::current()->thread_state() == _thread_in_vm, "Java Thread is not running in vm"); | |
| 915 // The threadStatus is only present starting in 1.5 | |
| 916 if (_thread_status_offset > 0) { | |
| 917 java_thread->int_field_put(_thread_status_offset, status); | |
| 918 } | |
| 919 } | |
| 920 | |
| 921 // Read thread status value from threadStatus field in java.lang.Thread java class. | |
| 922 java_lang_Thread::ThreadStatus java_lang_Thread::get_thread_status(oop java_thread) { | |
| 923 assert(Thread::current()->is_VM_thread() || | |
| 924 JavaThread::current()->thread_state() == _thread_in_vm, | |
| 925 "Java Thread is not running in vm"); | |
| 926 // The threadStatus is only present starting in 1.5 | |
| 927 if (_thread_status_offset > 0) { | |
| 928 return (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
| 929 } else { | |
| 930 // All we can easily figure out is if it is alive, but that is | |
| 931 // enough info for a valid unknown status. | |
| 932 // These aren't restricted to valid set ThreadStatus values, so | |
| 933 // use JVMTI values and cast. | |
| 934 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
| 935 if (thr == NULL) { | |
| 936 // the thread hasn't run yet or is in the process of exiting | |
| 937 return NEW; | |
| 938 } | |
| 939 return (java_lang_Thread::ThreadStatus)JVMTI_THREAD_STATE_ALIVE; | |
| 940 } | |
| 941 } | |
| 942 | |
| 943 | |
| 944 jlong java_lang_Thread::thread_id(oop java_thread) { | |
| 945 // The thread ID field is only present starting in 1.5 | |
| 946 if (_tid_offset > 0) { | |
| 947 return java_thread->long_field(_tid_offset); | |
| 948 } else { | |
| 949 return 0; | |
| 950 } | |
| 951 } | |
| 952 | |
| 953 oop java_lang_Thread::park_blocker(oop java_thread) { | |
| 242 | 954 assert(JDK_Version::current().supports_thread_park_blocker() && |
| 955 _park_blocker_offset != 0, "Must support parkBlocker field"); | |
| 0 | 956 |
| 957 if (_park_blocker_offset > 0) { | |
| 958 return java_thread->obj_field(_park_blocker_offset); | |
| 959 } | |
| 960 | |
| 961 return NULL; | |
| 962 } | |
| 963 | |
| 964 jlong java_lang_Thread::park_event(oop java_thread) { | |
| 965 if (_park_event_offset > 0) { | |
| 966 return java_thread->long_field(_park_event_offset); | |
| 967 } | |
| 968 return 0; | |
| 969 } | |
| 970 | |
| 971 bool java_lang_Thread::set_park_event(oop java_thread, jlong ptr) { | |
| 972 if (_park_event_offset > 0) { | |
| 973 java_thread->long_field_put(_park_event_offset, ptr); | |
| 974 return true; | |
| 975 } | |
| 976 return false; | |
| 977 } | |
| 978 | |
| 979 | |
| 980 const char* java_lang_Thread::thread_status_name(oop java_thread) { | |
| 981 assert(JDK_Version::is_gte_jdk15x_version() && _thread_status_offset != 0, "Must have thread status"); | |
| 982 ThreadStatus status = (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
| 983 switch (status) { | |
| 984 case NEW : return "NEW"; | |
| 985 case RUNNABLE : return "RUNNABLE"; | |
| 986 case SLEEPING : return "TIMED_WAITING (sleeping)"; | |
| 987 case IN_OBJECT_WAIT : return "WAITING (on object monitor)"; | |
| 988 case IN_OBJECT_WAIT_TIMED : return "TIMED_WAITING (on object monitor)"; | |
| 989 case PARKED : return "WAITING (parking)"; | |
| 990 case PARKED_TIMED : return "TIMED_WAITING (parking)"; | |
| 991 case BLOCKED_ON_MONITOR_ENTER : return "BLOCKED (on object monitor)"; | |
| 992 case TERMINATED : return "TERMINATED"; | |
| 993 default : return "UNKNOWN"; | |
| 994 }; | |
| 995 } | |
| 996 int java_lang_ThreadGroup::_parent_offset = 0; | |
| 997 int java_lang_ThreadGroup::_name_offset = 0; | |
| 998 int java_lang_ThreadGroup::_threads_offset = 0; | |
| 999 int java_lang_ThreadGroup::_groups_offset = 0; | |
| 1000 int java_lang_ThreadGroup::_maxPriority_offset = 0; | |
| 1001 int java_lang_ThreadGroup::_destroyed_offset = 0; | |
| 1002 int java_lang_ThreadGroup::_daemon_offset = 0; | |
| 1003 int java_lang_ThreadGroup::_vmAllowSuspension_offset = 0; | |
| 1004 int java_lang_ThreadGroup::_nthreads_offset = 0; | |
| 1005 int java_lang_ThreadGroup::_ngroups_offset = 0; | |
| 1006 | |
| 1007 oop java_lang_ThreadGroup::parent(oop java_thread_group) { | |
| 1008 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1009 return java_thread_group->obj_field(_parent_offset); | |
| 1010 } | |
| 1011 | |
| 1012 // ("name as oop" accessor is not necessary) | |
| 1013 | |
| 1014 typeArrayOop java_lang_ThreadGroup::name(oop java_thread_group) { | |
| 1015 oop name = java_thread_group->obj_field(_name_offset); | |
| 1016 // ThreadGroup.name can be null | |
| 1017 return name == NULL ? (typeArrayOop)NULL : java_lang_String::value(name); | |
| 1018 } | |
| 1019 | |
| 1020 int java_lang_ThreadGroup::nthreads(oop java_thread_group) { | |
| 1021 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1022 return java_thread_group->int_field(_nthreads_offset); | |
| 1023 } | |
| 1024 | |
| 1025 objArrayOop java_lang_ThreadGroup::threads(oop java_thread_group) { | |
| 1026 oop threads = java_thread_group->obj_field(_threads_offset); | |
| 1027 assert(threads != NULL, "threadgroups should have threads"); | |
| 1028 assert(threads->is_objArray(), "just checking"); // Todo: Add better type checking code | |
| 1029 return objArrayOop(threads); | |
| 1030 } | |
| 1031 | |
| 1032 int java_lang_ThreadGroup::ngroups(oop java_thread_group) { | |
| 1033 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1034 return java_thread_group->int_field(_ngroups_offset); | |
| 1035 } | |
| 1036 | |
| 1037 objArrayOop java_lang_ThreadGroup::groups(oop java_thread_group) { | |
| 1038 oop groups = java_thread_group->obj_field(_groups_offset); | |
| 1039 assert(groups == NULL || groups->is_objArray(), "just checking"); // Todo: Add better type checking code | |
| 1040 return objArrayOop(groups); | |
| 1041 } | |
| 1042 | |
| 1043 ThreadPriority java_lang_ThreadGroup::maxPriority(oop java_thread_group) { | |
| 1044 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1045 return (ThreadPriority) java_thread_group->int_field(_maxPriority_offset); | |
| 1046 } | |
| 1047 | |
| 1048 bool java_lang_ThreadGroup::is_destroyed(oop java_thread_group) { | |
| 1049 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1050 return java_thread_group->bool_field(_destroyed_offset) != 0; | |
| 1051 } | |
| 1052 | |
| 1053 bool java_lang_ThreadGroup::is_daemon(oop java_thread_group) { | |
| 1054 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1055 return java_thread_group->bool_field(_daemon_offset) != 0; | |
| 1056 } | |
| 1057 | |
| 1058 bool java_lang_ThreadGroup::is_vmAllowSuspension(oop java_thread_group) { | |
| 1059 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1060 return java_thread_group->bool_field(_vmAllowSuspension_offset) != 0; | |
| 1061 } | |
| 1062 | |
| 1063 void java_lang_ThreadGroup::compute_offsets() { | |
| 1064 assert(_parent_offset == 0, "offsets should be initialized only once"); | |
| 1065 | |
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1066 Klass* k = SystemDictionary::ThreadGroup_klass(); |
| 0 | 1067 |
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1068 compute_offset(_parent_offset, k, vmSymbols::parent_name(), vmSymbols::threadgroup_signature()); |
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1069 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1070 compute_offset(_threads_offset, k, vmSymbols::threads_name(), vmSymbols::thread_array_signature()); |
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1071 compute_offset(_groups_offset, k, vmSymbols::groups_name(), vmSymbols::threadgroup_array_signature()); |
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1072 compute_offset(_maxPriority_offset, k, vmSymbols::maxPriority_name(), vmSymbols::int_signature()); |
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1073 compute_offset(_destroyed_offset, k, vmSymbols::destroyed_name(), vmSymbols::bool_signature()); |
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1074 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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1075 compute_offset(_vmAllowSuspension_offset, k, vmSymbols::vmAllowSuspension_name(), vmSymbols::bool_signature()); |
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1076 compute_offset(_nthreads_offset, k, vmSymbols::nthreads_name(), vmSymbols::int_signature()); |
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1077 compute_offset(_ngroups_offset, k, vmSymbols::ngroups_name(), vmSymbols::int_signature()); |
| 0 | 1078 } |
| 1079 | |
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1080 oop java_lang_Throwable::unassigned_stacktrace() { |
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1081 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Throwable_klass()); |
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1082 address addr = ik->static_field_addr(static_unassigned_stacktrace_offset); |
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1083 if (UseCompressedOops) { |
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1084 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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1085 } else { |
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1086 return oopDesc::load_decode_heap_oop((oop*)addr); |
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1087 } |
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1088 } |
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1089 |
| 0 | 1090 oop java_lang_Throwable::backtrace(oop throwable) { |
| 1091 return throwable->obj_field_acquire(backtrace_offset); | |
| 1092 } | |
| 1093 | |
| 1094 | |
| 1095 void java_lang_Throwable::set_backtrace(oop throwable, oop value) { | |
| 1096 throwable->release_obj_field_put(backtrace_offset, value); | |
| 1097 } | |
| 1098 | |
| 1099 | |
| 1100 oop java_lang_Throwable::message(oop throwable) { | |
| 1101 return throwable->obj_field(detailMessage_offset); | |
| 1102 } | |
| 1103 | |
| 1104 | |
| 1105 oop java_lang_Throwable::message(Handle throwable) { | |
| 1106 return throwable->obj_field(detailMessage_offset); | |
| 1107 } | |
| 1108 | |
| 1109 | |
| 1110 void java_lang_Throwable::set_message(oop throwable, oop value) { | |
| 1111 throwable->obj_field_put(detailMessage_offset, value); | |
| 1112 } | |
| 1113 | |
| 1114 | |
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1115 void java_lang_Throwable::set_stacktrace(oop throwable, oop st_element_array) { |
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1116 throwable->obj_field_put(stackTrace_offset, st_element_array); |
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1117 } |
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1118 |
| 0 | 1119 void java_lang_Throwable::clear_stacktrace(oop throwable) { |
| 1120 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
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1121 set_stacktrace(throwable, NULL); |
| 0 | 1122 } |
| 1123 | |
| 1124 | |
| 1125 void java_lang_Throwable::print(oop throwable, outputStream* st) { | |
| 1126 ResourceMark rm; | |
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1127 Klass* k = throwable->klass(); |
| 0 | 1128 assert(k != NULL, "just checking"); |
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1129 st->print("%s", InstanceKlass::cast(k)->external_name()); |
| 0 | 1130 oop msg = message(throwable); |
| 1131 if (msg != NULL) { | |
| 1132 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
| 1133 } | |
| 1134 } | |
| 1135 | |
| 1136 | |
| 1137 void java_lang_Throwable::print(Handle throwable, outputStream* st) { | |
| 1138 ResourceMark rm; | |
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1139 Klass* k = throwable->klass(); |
| 0 | 1140 assert(k != NULL, "just checking"); |
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1141 st->print("%s", InstanceKlass::cast(k)->external_name()); |
| 0 | 1142 oop msg = message(throwable); |
| 1143 if (msg != NULL) { | |
| 1144 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
| 1145 } | |
| 1146 } | |
| 1147 | |
| 1148 // Print stack trace element to resource allocated buffer | |
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1149 char* java_lang_Throwable::print_stack_element_to_buffer(Method* method, int bci) { |
| 0 | 1150 // Get strings and string lengths |
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1151 InstanceKlass* klass = method->method_holder(); |
| 0 | 1152 const char* klass_name = klass->external_name(); |
| 1153 int buf_len = (int)strlen(klass_name); | |
| 1154 char* source_file_name; | |
| 1155 if (klass->source_file_name() == NULL) { | |
| 1156 source_file_name = NULL; | |
| 1157 } else { | |
| 1158 source_file_name = klass->source_file_name()->as_C_string(); | |
| 1159 buf_len += (int)strlen(source_file_name); | |
| 1160 } | |
| 1161 char* method_name = method->name()->as_C_string(); | |
| 1162 buf_len += (int)strlen(method_name); | |
| 1163 | |
| 1164 // Allocate temporary buffer with extra space for formatting and line number | |
| 1165 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64); | |
| 1166 | |
| 1167 // Print stack trace line in buffer | |
| 1168 sprintf(buf, "\tat %s.%s", klass_name, method_name); | |
| 1169 if (method->is_native()) { | |
| 1170 strcat(buf, "(Native Method)"); | |
| 1171 } else { | |
| 1172 int line_number = method->line_number_from_bci(bci); | |
| 1173 if (source_file_name != NULL && (line_number != -1)) { | |
| 1174 // Sourcename and linenumber | |
| 1175 sprintf(buf + (int)strlen(buf), "(%s:%d)", source_file_name, line_number); | |
| 1176 } else if (source_file_name != NULL) { | |
| 1177 // Just sourcename | |
| 1178 sprintf(buf + (int)strlen(buf), "(%s)", source_file_name); | |
| 1179 } else { | |
| 1180 // Neither soucename and linenumber | |
| 1181 sprintf(buf + (int)strlen(buf), "(Unknown Source)"); | |
| 1182 } | |
| 1183 nmethod* nm = method->code(); | |
| 1184 if (WizardMode && nm != NULL) { | |
| 3960 | 1185 sprintf(buf + (int)strlen(buf), "(nmethod " INTPTR_FORMAT ")", (intptr_t)nm); |
| 0 | 1186 } |
| 1187 } | |
| 1188 | |
| 1189 return buf; | |
| 1190 } | |
| 1191 | |
| 1192 | |
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1193 void java_lang_Throwable::print_stack_element(Handle stream, Method* method, int bci) { |
| 0 | 1194 ResourceMark rm; |
| 1195 char* buf = print_stack_element_to_buffer(method, bci); | |
| 1196 print_to_stream(stream, buf); | |
| 1197 } | |
| 1198 | |
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1199 void java_lang_Throwable::print_stack_element(outputStream *st, Method* method, int bci) { |
| 0 | 1200 ResourceMark rm; |
| 1201 char* buf = print_stack_element_to_buffer(method, bci); | |
| 1202 st->print_cr("%s", buf); | |
| 1203 } | |
| 1204 | |
| 1205 void java_lang_Throwable::print_to_stream(Handle stream, const char* str) { | |
| 1206 if (stream.is_null()) { | |
| 1207 tty->print_cr("%s", str); | |
| 1208 } else { | |
| 1209 EXCEPTION_MARK; | |
| 1210 JavaValue result(T_VOID); | |
| 1211 Handle arg (THREAD, oopFactory::new_charArray(str, THREAD)); | |
| 1212 if (!HAS_PENDING_EXCEPTION) { | |
| 1213 JavaCalls::call_virtual(&result, | |
| 1214 stream, | |
| 1215 KlassHandle(THREAD, stream->klass()), | |
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1216 vmSymbols::println_name(), |
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1217 vmSymbols::char_array_void_signature(), |
| 0 | 1218 arg, |
| 1219 THREAD); | |
| 1220 } | |
| 1221 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
| 1222 if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION; | |
| 1223 } | |
| 1224 | |
| 1225 } | |
| 1226 | |
| 1227 | |
| 1228 const char* java_lang_Throwable::no_stack_trace_message() { | |
| 1229 return "\t<<no stack trace available>>"; | |
| 1230 } | |
| 1231 | |
| 1232 | |
| 1233 // Currently used only for exceptions occurring during startup | |
| 1234 void java_lang_Throwable::print_stack_trace(oop throwable, outputStream* st) { | |
| 1235 Thread *THREAD = Thread::current(); | |
| 1236 Handle h_throwable(THREAD, throwable); | |
| 1237 while (h_throwable.not_null()) { | |
| 1238 objArrayHandle result (THREAD, objArrayOop(backtrace(h_throwable()))); | |
| 1239 if (result.is_null()) { | |
| 1240 st->print_cr(no_stack_trace_message()); | |
| 1241 return; | |
| 1242 } | |
| 1243 | |
| 1244 while (result.not_null()) { | |
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1245 typeArrayHandle methods (THREAD, |
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1246 typeArrayOop(result->obj_at(trace_methods_offset))); |
| 0 | 1247 typeArrayHandle bcis (THREAD, |
| 1248 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
| 1249 | |
| 1250 if (methods.is_null() || bcis.is_null()) { | |
| 1251 st->print_cr(no_stack_trace_message()); | |
| 1252 return; | |
| 1253 } | |
| 1254 | |
| 1255 int length = methods()->length(); | |
| 1256 for (int index = 0; index < length; index++) { | |
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1257 Method* method = ((Method*)methods()->metadata_at(index)); |
| 0 | 1258 if (method == NULL) goto handle_cause; |
| 1259 int bci = bcis->ushort_at(index); | |
| 1260 print_stack_element(st, method, bci); | |
| 1261 } | |
| 1262 result = objArrayHandle(THREAD, objArrayOop(result->obj_at(trace_next_offset))); | |
| 1263 } | |
| 1264 handle_cause: | |
| 1265 { | |
| 1266 EXCEPTION_MARK; | |
| 1267 JavaValue result(T_OBJECT); | |
| 1268 JavaCalls::call_virtual(&result, | |
| 1269 h_throwable, | |
| 1270 KlassHandle(THREAD, h_throwable->klass()), | |
|
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1271 vmSymbols::getCause_name(), |
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1272 vmSymbols::void_throwable_signature(), |
| 0 | 1273 THREAD); |
| 1274 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
| 1275 if (HAS_PENDING_EXCEPTION) { | |
| 1276 CLEAR_PENDING_EXCEPTION; | |
| 1277 h_throwable = Handle(); | |
| 1278 } else { | |
| 1279 h_throwable = Handle(THREAD, (oop) result.get_jobject()); | |
| 1280 if (h_throwable.not_null()) { | |
| 1281 st->print("Caused by: "); | |
| 1282 print(h_throwable, st); | |
| 1283 st->cr(); | |
| 1284 } | |
| 1285 } | |
| 1286 } | |
| 1287 } | |
| 1288 } | |
| 1289 | |
| 1290 | |
| 1291 void java_lang_Throwable::print_stack_trace(oop throwable, oop print_stream) { | |
| 1292 // Note: this is no longer used in Merlin, but we support it for compatibility. | |
| 1293 Thread *thread = Thread::current(); | |
| 1294 Handle stream(thread, print_stream); | |
| 1295 objArrayHandle result (thread, objArrayOop(backtrace(throwable))); | |
| 1296 if (result.is_null()) { | |
| 1297 print_to_stream(stream, no_stack_trace_message()); | |
| 1298 return; | |
| 1299 } | |
| 1300 | |
| 1301 while (result.not_null()) { | |
|
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1302 typeArrayHandle methods(thread, |
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1303 typeArrayOop(result->obj_at(trace_methods_offset))); |
| 0 | 1304 typeArrayHandle bcis (thread, |
| 1305 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
| 1306 | |
| 1307 if (methods.is_null() || bcis.is_null()) { | |
| 1308 print_to_stream(stream, no_stack_trace_message()); | |
| 1309 return; | |
| 1310 } | |
| 1311 | |
| 1312 int length = methods()->length(); | |
| 1313 for (int index = 0; index < length; index++) { | |
|
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1314 Method* method = ((Method*)methods()->metadata_at(index)); |
| 0 | 1315 if (method == NULL) return; |
| 1316 int bci = bcis->ushort_at(index); | |
| 1317 print_stack_element(stream, method, bci); | |
| 1318 } | |
| 1319 result = objArrayHandle(thread, objArrayOop(result->obj_at(trace_next_offset))); | |
| 1320 } | |
| 1321 } | |
| 1322 | |
| 1323 // This class provides a simple wrapper over the internal structure of | |
| 1324 // exception backtrace to insulate users of the backtrace from needing | |
| 1325 // to know what it looks like. | |
| 1326 class BacktraceBuilder: public StackObj { | |
| 1327 private: | |
| 1328 Handle _backtrace; | |
| 1329 objArrayOop _head; | |
|
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1330 typeArrayOop _methods; |
| 0 | 1331 typeArrayOop _bcis; |
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1332 objArrayOop _mirrors; |
| 0 | 1333 int _index; |
| 1334 No_Safepoint_Verifier _nsv; | |
| 1335 | |
| 1336 public: | |
| 1337 | |
| 1338 enum { | |
| 1339 trace_methods_offset = java_lang_Throwable::trace_methods_offset, | |
| 1340 trace_bcis_offset = java_lang_Throwable::trace_bcis_offset, | |
|
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1341 trace_mirrors_offset = java_lang_Throwable::trace_mirrors_offset, |
| 0 | 1342 trace_next_offset = java_lang_Throwable::trace_next_offset, |
| 1343 trace_size = java_lang_Throwable::trace_size, | |
| 1344 trace_chunk_size = java_lang_Throwable::trace_chunk_size | |
| 1345 }; | |
| 1346 | |
| 1347 // constructor for new backtrace | |
|
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1348 BacktraceBuilder(TRAPS): _methods(NULL), _bcis(NULL), _head(NULL), _mirrors(NULL) { |
| 0 | 1349 expand(CHECK); |
| 1350 _backtrace = _head; | |
| 1351 _index = 0; | |
| 1352 } | |
| 1353 | |
| 1354 void expand(TRAPS) { | |
| 1355 objArrayHandle old_head(THREAD, _head); | |
| 1356 Pause_No_Safepoint_Verifier pnsv(&_nsv); | |
| 1357 | |
| 1358 objArrayOop head = oopFactory::new_objectArray(trace_size, CHECK); | |
| 1359 objArrayHandle new_head(THREAD, head); | |
| 1360 | |
|
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1361 typeArrayOop methods = oopFactory::new_metaDataArray(trace_chunk_size, CHECK); |
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1362 typeArrayHandle new_methods(THREAD, methods); |
| 0 | 1363 |
| 1364 typeArrayOop bcis = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
| 1365 typeArrayHandle new_bcis(THREAD, bcis); | |
| 1366 | |
|
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1367 objArrayOop mirrors = oopFactory::new_objectArray(trace_chunk_size, CHECK); |
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1368 objArrayHandle new_mirrors(THREAD, mirrors); |
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1369 |
| 0 | 1370 if (!old_head.is_null()) { |
| 1371 old_head->obj_at_put(trace_next_offset, new_head()); | |
| 1372 } | |
| 1373 new_head->obj_at_put(trace_methods_offset, new_methods()); | |
| 1374 new_head->obj_at_put(trace_bcis_offset, new_bcis()); | |
|
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1375 new_head->obj_at_put(trace_mirrors_offset, new_mirrors()); |
| 0 | 1376 |
| 1377 _head = new_head(); | |
| 1378 _methods = new_methods(); | |
| 1379 _bcis = new_bcis(); | |
|
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1380 _mirrors = new_mirrors(); |
| 0 | 1381 _index = 0; |
| 1382 } | |
| 1383 | |
| 1384 oop backtrace() { | |
| 1385 return _backtrace(); | |
| 1386 } | |
| 1387 | |
|
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1388 inline void push(Method* method, int bci, TRAPS) { |
|
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1389 // Smear the -1 bci to 0 since the array only holds unsigned |
|
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1390 // shorts. The later line number lookup would just smear the -1 |
|
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1391 // to a 0 even if it could be recorded. |
|
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1392 if (bci == SynchronizationEntryBCI) bci = 0; |
|
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1393 assert(bci == (jushort)bci, "doesn't fit"); |
|
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|
1394 |
| 0 | 1395 if (_index >= trace_chunk_size) { |
| 1396 methodHandle mhandle(THREAD, method); | |
| 1397 expand(CHECK); | |
| 1398 method = mhandle(); | |
| 1399 } | |
| 1400 | |
|
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1401 _methods->metadata_at_put(_index, method); |
| 0 | 1402 _bcis->ushort_at_put(_index, bci); |
|
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1403 // we need to save the mirrors in the backtrace to keep the methods from |
|
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1404 // being unloaded if their class loader is unloaded while we still have |
|
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1405 // this stack trace. |
|
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1406 _mirrors->obj_at_put(_index, method->method_holder()->java_mirror()); |
| 0 | 1407 _index++; |
| 1408 } | |
| 1409 | |
|
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1410 Method* current_method() { |
| 0 | 1411 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); |
|
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1412 return ((Method*)_methods->metadata_at(_index)); |
| 0 | 1413 } |
| 1414 | |
| 1415 jushort current_bci() { | |
| 1416 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
| 1417 return _bcis->ushort_at(_index); | |
| 1418 } | |
| 1419 }; | |
| 1420 | |
| 1421 | |
|
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7009923: JSR 292: VM crash in JavaThread::last_frame
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1422 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method, TRAPS) { |
| 0 | 1423 if (!StackTraceInThrowable) return; |
| 1424 ResourceMark rm(THREAD); | |
| 1425 | |
| 1426 // Start out by clearing the backtrace for this object, in case the VM | |
| 1427 // runs out of memory while allocating the stack trace | |
| 1428 set_backtrace(throwable(), NULL); | |
| 1429 if (JDK_Version::is_gte_jdk14x_version()) { | |
| 1430 // New since 1.4, clear lazily constructed Java level stacktrace if | |
| 1431 // refilling occurs | |
|
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1432 // This is unnecessary in 1.7+ but harmless |
| 0 | 1433 clear_stacktrace(throwable()); |
| 1434 } | |
| 1435 | |
| 1436 int max_depth = MaxJavaStackTraceDepth; | |
| 1437 JavaThread* thread = (JavaThread*)THREAD; | |
| 1438 BacktraceBuilder bt(CHECK); | |
| 1439 | |
|
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1440 // If there is no Java frame just return the method that was being called |
|
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1441 // with bci 0 |
|
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1442 if (!thread->has_last_Java_frame()) { |
|
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1443 if (max_depth >= 1 && method() != NULL) { |
|
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1444 bt.push(method(), 0, CHECK); |
|
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1445 set_backtrace(throwable(), bt.backtrace()); |
|
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|
1446 } |
|
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|
1447 return; |
|
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|
1448 } |
|
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|
1449 |
| 0 | 1450 // Instead of using vframe directly, this version of fill_in_stack_trace |
| 1451 // basically handles everything by hand. This significantly improved the | |
| 1452 // speed of this method call up to 28.5% on Solaris sparc. 27.1% on Windows. | |
| 1453 // See bug 6333838 for more details. | |
| 1454 // The "ASSERT" here is to verify this method generates the exactly same stack | |
| 1455 // trace as utilizing vframe. | |
| 1456 #ifdef ASSERT | |
| 1457 vframeStream st(thread); | |
| 1458 methodHandle st_method(THREAD, st.method()); | |
| 1459 #endif | |
| 1460 int total_count = 0; | |
| 1461 RegisterMap map(thread, false); | |
| 1462 int decode_offset = 0; | |
| 1463 nmethod* nm = NULL; | |
| 1464 bool skip_fillInStackTrace_check = false; | |
| 1465 bool skip_throwableInit_check = false; | |
|
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1466 bool skip_hidden = !ShowHiddenFrames; |
| 0 | 1467 |
| 1468 for (frame fr = thread->last_frame(); max_depth != total_count;) { | |
|
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|
1469 Method* method = NULL; |
| 0 | 1470 int bci = 0; |
| 1471 | |
| 1472 // Compiled java method case. | |
| 1473 if (decode_offset != 0) { | |
| 1474 DebugInfoReadStream stream(nm, decode_offset); | |
| 1475 decode_offset = stream.read_int(); | |
|
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1476 method = (Method*)nm->metadata_at(stream.read_int()); |
|
931
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6873116: Modify reexecute implementation to use pcDesc to record the reexecute bit
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|
1477 bci = stream.read_bci(); |
| 0 | 1478 } else { |
| 1479 if (fr.is_first_frame()) break; | |
| 1480 address pc = fr.pc(); | |
| 1481 if (fr.is_interpreted_frame()) { | |
| 1482 intptr_t bcx = fr.interpreter_frame_bcx(); | |
| 1483 method = fr.interpreter_frame_method(); | |
| 1484 bci = fr.is_bci(bcx) ? bcx : method->bci_from((address)bcx); | |
| 1485 fr = fr.sender(&map); | |
| 1486 } else { | |
| 1487 CodeBlob* cb = fr.cb(); | |
| 1488 // HMMM QQQ might be nice to have frame return nm as NULL if cb is non-NULL | |
| 1489 // but non nmethod | |
| 1490 fr = fr.sender(&map); | |
| 1491 if (cb == NULL || !cb->is_nmethod()) { | |
| 1492 continue; | |
| 1493 } | |
| 1494 nm = (nmethod*)cb; | |
| 1495 if (nm->method()->is_native()) { | |
| 1496 method = nm->method(); | |
| 1497 bci = 0; | |
| 1498 } else { | |
| 1499 PcDesc* pd = nm->pc_desc_at(pc); | |
| 1500 decode_offset = pd->scope_decode_offset(); | |
| 1501 // if decode_offset is not equal to 0, it will execute the | |
| 1502 // "compiled java method case" at the beginning of the loop. | |
| 1503 continue; | |
| 1504 } | |
| 1505 } | |
| 1506 } | |
| 1507 #ifdef ASSERT | |
|
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1508 assert(st_method() == method && st.bci() == bci, |
|
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1509 "Wrong stack trace"); |
|
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|
1510 st.next(); |
|
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|
1511 // vframeStream::method isn't GC-safe so store off a copy |
|
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1512 // of the Method* in case we GC. |
|
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1513 if (!st.at_end()) { |
|
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1514 st_method = st.method(); |
|
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|
1515 } |
| 0 | 1516 #endif |
|
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|
1517 |
|
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|
1518 // the format of the stacktrace will be: |
|
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|
1519 // - 1 or more fillInStackTrace frames for the exception class (skipped) |
|
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1520 // - 0 or more <init> methods for the exception class (skipped) |
|
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|
1521 // - rest of the stack |
|
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|
1522 |
| 0 | 1523 if (!skip_fillInStackTrace_check) { |
|
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|
1524 if ((method->name() == vmSymbols::fillInStackTrace_name() || |
|
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|
1525 method->name() == vmSymbols::fillInStackTrace0_name()) && |
|
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|
1526 throwable->is_a(method->method_holder())) { |
| 0 | 1527 continue; |
| 1528 } | |
|
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|
1529 else { |
|
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|
1530 skip_fillInStackTrace_check = true; // gone past them all |
|
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|
1531 } |
| 0 | 1532 } |
| 1533 if (!skip_throwableInit_check) { | |
|
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|
1534 assert(skip_fillInStackTrace_check, "logic error in backtrace filtering"); |
|
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|
1535 |
|
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1536 // skip <init> methods of the exception class and superclasses |
|
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1537 // This is simlar to classic VM. |
| 0 | 1538 if (method->name() == vmSymbols::object_initializer_name() && |
| 1539 throwable->is_a(method->method_holder())) { | |
| 1540 continue; | |
| 1541 } else { | |
|
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1542 // there are none or we've seen them all - either way stop checking |
| 0 | 1543 skip_throwableInit_check = true; |
| 1544 } | |
| 1545 } | |
|
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1546 if (method->is_hidden()) { |
|
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1547 if (skip_hidden) continue; |
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|
1548 } |
| 0 | 1549 bt.push(method, bci, CHECK); |
| 1550 total_count++; | |
| 1551 } | |
| 1552 | |
| 1553 // Put completed stack trace into throwable object | |
| 1554 set_backtrace(throwable(), bt.backtrace()); | |
| 1555 } | |
| 1556 | |
|
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|
1557 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method) { |
| 0 | 1558 // No-op if stack trace is disabled |
| 1559 if (!StackTraceInThrowable) { | |
| 1560 return; | |
| 1561 } | |
| 1562 | |
| 1563 // Disable stack traces for some preallocated out of memory errors | |
| 1564 if (!Universe::should_fill_in_stack_trace(throwable)) { | |
| 1565 return; | |
| 1566 } | |
| 1567 | |
| 1568 PRESERVE_EXCEPTION_MARK; | |
| 1569 | |
| 1570 JavaThread* thread = JavaThread::active(); | |
|
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1571 fill_in_stack_trace(throwable, method, thread); |
| 0 | 1572 // ignore exceptions thrown during stack trace filling |
| 1573 CLEAR_PENDING_EXCEPTION; | |
| 1574 } | |
| 1575 | |
| 1576 void java_lang_Throwable::allocate_backtrace(Handle throwable, TRAPS) { | |
| 1577 // Allocate stack trace - backtrace is created but not filled in | |
| 1578 | |
| 1579 // No-op if stack trace is disabled | |
| 1580 if (!StackTraceInThrowable) return; | |
| 1581 | |
| 1582 objArrayOop h_oop = oopFactory::new_objectArray(trace_size, CHECK); | |
| 1583 objArrayHandle backtrace (THREAD, h_oop); | |
|
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1584 typeArrayOop m_oop = oopFactory::new_metaDataArray(trace_chunk_size, CHECK); |
|
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1585 typeArrayHandle methods (THREAD, m_oop); |
| 0 | 1586 typeArrayOop b = oopFactory::new_shortArray(trace_chunk_size, CHECK); |
| 1587 typeArrayHandle bcis(THREAD, b); | |
|
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1588 objArrayOop mirror_oop = oopFactory::new_objectArray(trace_chunk_size, CHECK); |
|
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1589 objArrayHandle mirrors (THREAD, mirror_oop); |
| 0 | 1590 |
| 1591 // backtrace has space for one chunk (next is NULL) | |
| 1592 backtrace->obj_at_put(trace_methods_offset, methods()); | |
| 1593 backtrace->obj_at_put(trace_bcis_offset, bcis()); | |
|
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1594 backtrace->obj_at_put(trace_mirrors_offset, mirrors()); |
| 0 | 1595 set_backtrace(throwable(), backtrace()); |
| 1596 } | |
| 1597 | |
| 1598 | |
| 1599 void java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(Handle throwable) { | |
| 1600 // Fill in stack trace into preallocated backtrace (no GC) | |
| 1601 | |
| 1602 // No-op if stack trace is disabled | |
| 1603 if (!StackTraceInThrowable) return; | |
| 1604 | |
| 1142 | 1605 assert(throwable->is_a(SystemDictionary::Throwable_klass()), "sanity check"); |
| 0 | 1606 |
|
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1607 objArrayOop backtrace = (objArrayOop)java_lang_Throwable::backtrace(throwable()); |
| 0 | 1608 assert(backtrace != NULL, "backtrace not preallocated"); |
| 1609 | |
|
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1610 oop m = backtrace->obj_at(trace_methods_offset); |
|
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1611 typeArrayOop methods = typeArrayOop(m); |
| 0 | 1612 assert(methods != NULL && methods->length() > 0, "method array not preallocated"); |
| 1613 | |
|
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1614 oop b = backtrace->obj_at(trace_bcis_offset); |
| 0 | 1615 typeArrayOop bcis = typeArrayOop(b); |
| 1616 assert(bcis != NULL, "bci array not preallocated"); | |
| 1617 | |
|
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1618 oop mr = backtrace->obj_at(trace_mirrors_offset); |
|
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1619 objArrayOop mirrors = objArrayOop(mr); |
|
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1620 assert(mirrors != NULL, "bci array not preallocated"); |
|
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1621 |
|
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1622 assert(methods->length() == bcis->length() && |
|
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1623 methods->length() == mirrors->length(), |
|
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1624 "method and bci arrays should match"); |
| 0 | 1625 |
| 1626 JavaThread* thread = JavaThread::current(); | |
| 1627 ResourceMark rm(thread); | |
| 1628 vframeStream st(thread); | |
| 1629 | |
| 1630 // Unlike fill_in_stack_trace we do not skip fillInStackTrace or throwable init | |
| 1631 // methods as preallocated errors aren't created by "java" code. | |
| 1632 | |
| 1633 // fill in as much stack trace as possible | |
| 1634 int max_chunks = MIN2(methods->length(), (int)MaxJavaStackTraceDepth); | |
| 1635 int chunk_count = 0; | |
| 1636 | |
| 1637 for (;!st.at_end(); st.next()) { | |
|
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1638 // Add entry and smear the -1 bci to 0 since the array only holds |
|
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|
1639 // unsigned shorts. The later line number lookup would just smear |
|
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1640 // the -1 to a 0 even if it could be recorded. |
|
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1641 int bci = st.bci(); |
|
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|
1642 if (bci == SynchronizationEntryBCI) bci = 0; |
|
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|
1643 assert(bci == (jushort)bci, "doesn't fit"); |
|
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|
1644 bcis->ushort_at_put(chunk_count, bci); |
|
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1645 methods->metadata_at_put(chunk_count, st.method()); |
|
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1646 mirrors->obj_at_put(chunk_count, |
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|
1647 st.method()->method_holder()->java_mirror()); |
| 0 | 1648 |
| 1649 chunk_count++; | |
| 1650 | |
| 1651 // Bail-out for deep stacks | |
| 1652 if (chunk_count >= max_chunks) break; | |
| 1653 } | |
|
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|
1654 |
|
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1655 // For Java 7+ we support the Throwable immutability protocol defined for Java 7. This support |
|
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1656 // was missing in 7u0 so in 7u0 there is a workaround in the Throwable class. That workaround |
|
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1657 // can be removed in a JDK using this JVM version |
|
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|
1658 if (JDK_Version::is_gte_jdk17x_version()) { |
|
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|
1659 java_lang_Throwable::set_stacktrace(throwable(), java_lang_Throwable::unassigned_stacktrace()); |
|
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|
1660 assert(java_lang_Throwable::unassigned_stacktrace() != NULL, "not initialized"); |
|
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|
1661 } |
|
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|
1662 |
| 0 | 1663 } |
| 1664 | |
| 1665 | |
| 1666 int java_lang_Throwable::get_stack_trace_depth(oop throwable, TRAPS) { | |
| 1667 if (throwable == NULL) { | |
| 1668 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
| 1669 } | |
| 1670 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
| 1671 int depth = 0; | |
| 1672 if (chunk != NULL) { | |
| 1673 // Iterate over chunks and count full ones | |
| 1674 while (true) { | |
| 1675 objArrayOop next = objArrayOop(chunk->obj_at(trace_next_offset)); | |
| 1676 if (next == NULL) break; | |
| 1677 depth += trace_chunk_size; | |
| 1678 chunk = next; | |
| 1679 } | |
| 1680 assert(chunk != NULL && chunk->obj_at(trace_next_offset) == NULL, "sanity check"); | |
| 1681 // Count element in remaining partial chunk | |
|
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|
1682 typeArrayOop methods = typeArrayOop(chunk->obj_at(trace_methods_offset)); |
| 0 | 1683 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); |
| 1684 assert(methods != NULL && bcis != NULL, "sanity check"); | |
| 1685 for (int i = 0; i < methods->length(); i++) { | |
|
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|
1686 if (methods->metadata_at(i) == NULL) break; |
| 0 | 1687 depth++; |
| 1688 } | |
| 1689 } | |
| 1690 return depth; | |
| 1691 } | |
| 1692 | |
| 1693 | |
| 1694 oop java_lang_Throwable::get_stack_trace_element(oop throwable, int index, TRAPS) { | |
| 1695 if (throwable == NULL) { | |
| 1696 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
| 1697 } | |
| 1698 if (index < 0) { | |
| 1699 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1700 } | |
| 1701 // Compute how many chunks to skip and index into actual chunk | |
| 1702 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
| 1703 int skip_chunks = index / trace_chunk_size; | |
| 1704 int chunk_index = index % trace_chunk_size; | |
| 1705 while (chunk != NULL && skip_chunks > 0) { | |
| 1706 chunk = objArrayOop(chunk->obj_at(trace_next_offset)); | |
| 1707 skip_chunks--; | |
| 1708 } | |
| 1709 if (chunk == NULL) { | |
| 1710 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1711 } | |
| 1712 // Get method,bci from chunk | |
|
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|
1713 typeArrayOop methods = typeArrayOop(chunk->obj_at(trace_methods_offset)); |
| 0 | 1714 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); |
| 1715 assert(methods != NULL && bcis != NULL, "sanity check"); | |
|
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|
1716 methodHandle method(THREAD, ((Method*)methods->metadata_at(chunk_index))); |
| 0 | 1717 int bci = bcis->ushort_at(chunk_index); |
| 1718 // Chunk can be partial full | |
| 1719 if (method.is_null()) { | |
| 1720 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1721 } | |
| 1722 | |
| 1723 oop element = java_lang_StackTraceElement::create(method, bci, CHECK_0); | |
| 1724 return element; | |
| 1725 } | |
| 1726 | |
| 1727 oop java_lang_StackTraceElement::create(methodHandle method, int bci, TRAPS) { | |
| 1728 // SystemDictionary::stackTraceElement_klass() will be null for pre-1.4 JDKs | |
| 1729 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
| 1730 | |
| 1731 // Allocate java.lang.StackTraceElement instance | |
|
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1732 Klass* k = SystemDictionary::StackTraceElement_klass(); |
|
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|
1733 assert(k != NULL, "must be loaded in 1.4+"); |
| 0 | 1734 instanceKlassHandle ik (THREAD, k); |
| 1735 if (ik->should_be_initialized()) { | |
| 1736 ik->initialize(CHECK_0); | |
| 1737 } | |
| 1738 | |
| 1739 Handle element = ik->allocate_instance_handle(CHECK_0); | |
| 1740 // Fill in class name | |
| 1741 ResourceMark rm(THREAD); | |
|
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|
1742 const char* str = method->method_holder()->external_name(); |
| 0 | 1743 oop classname = StringTable::intern((char*) str, CHECK_0); |
| 1744 java_lang_StackTraceElement::set_declaringClass(element(), classname); | |
| 1745 // Fill in method name | |
| 1746 oop methodname = StringTable::intern(method->name(), CHECK_0); | |
| 1747 java_lang_StackTraceElement::set_methodName(element(), methodname); | |
| 1748 // Fill in source file name | |
|
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|
1749 Symbol* source = method->method_holder()->source_file_name(); |
|
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1750 if (ShowHiddenFrames && source == NULL) |
|
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|
1751 source = vmSymbols::unknown_class_name(); |
| 0 | 1752 oop filename = StringTable::intern(source, CHECK_0); |
| 1753 java_lang_StackTraceElement::set_fileName(element(), filename); | |
| 1754 // File in source line number | |
| 1755 int line_number; | |
| 1756 if (method->is_native()) { | |
| 1757 // Negative value different from -1 below, enabling Java code in | |
| 1758 // class java.lang.StackTraceElement to distinguish "native" from | |
| 1759 // "no LineNumberTable". | |
| 1760 line_number = -2; | |
| 1761 } else { | |
| 1762 // Returns -1 if no LineNumberTable, and otherwise actual line number | |
| 1763 line_number = method->line_number_from_bci(bci); | |
|
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|
1764 if (line_number == -1 && ShowHiddenFrames) { |
|
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|
1765 line_number = bci + 1000000; |
|
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|
1766 } |
| 0 | 1767 } |
| 1768 java_lang_StackTraceElement::set_lineNumber(element(), line_number); | |
| 1769 | |
| 1770 return element(); | |
| 1771 } | |
| 1772 | |
| 1773 | |
| 1774 void java_lang_reflect_AccessibleObject::compute_offsets() { | |
|
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1775 Klass* k = SystemDictionary::reflect_AccessibleObject_klass(); |
|
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|
1776 compute_offset(override_offset, k, vmSymbols::override_name(), vmSymbols::bool_signature()); |
| 0 | 1777 } |
| 1778 | |
| 1779 jboolean java_lang_reflect_AccessibleObject::override(oop reflect) { | |
| 1780 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1781 return (jboolean) reflect->bool_field(override_offset); | |
| 1782 } | |
| 1783 | |
| 1784 void java_lang_reflect_AccessibleObject::set_override(oop reflect, jboolean value) { | |
| 1785 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1786 reflect->bool_field_put(override_offset, (int) value); | |
| 1787 } | |
| 1788 | |
| 1789 void java_lang_reflect_Method::compute_offsets() { | |
|
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1790 Klass* k = SystemDictionary::reflect_Method_klass(); |
|
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|
1791 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
|
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|
1792 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
|
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1793 compute_offset(returnType_offset, k, vmSymbols::returnType_name(), vmSymbols::class_signature()); |
|
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|
1794 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
|
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|
1795 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
|
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|
1796 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1797 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 1798 // The generic signature and annotations fields are only present in 1.5 |
| 1799 signature_offset = -1; | |
| 1800 annotations_offset = -1; | |
| 1801 parameter_annotations_offset = -1; | |
| 1802 annotation_default_offset = -1; | |
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1803 type_annotations_offset = -1; |
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1804 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1805 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1806 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
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1807 compute_optional_offset(annotation_default_offset, k, vmSymbols::annotation_default_name(), vmSymbols::byte_array_signature()); |
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1808 compute_optional_offset(type_annotations_offset, k, vmSymbols::type_annotations_name(), vmSymbols::byte_array_signature()); |
| 0 | 1809 } |
| 1810 | |
| 1811 Handle java_lang_reflect_Method::create(TRAPS) { | |
| 1812 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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1813 Klass* klass = SystemDictionary::reflect_Method_klass(); |
| 0 | 1814 // This class is eagerly initialized during VM initialization, since we keep a refence |
| 1815 // to one of the methods | |
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1816 assert(InstanceKlass::cast(klass)->is_initialized(), "must be initialized"); |
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1817 return InstanceKlass::cast(klass)->allocate_instance_handle(CHECK_NH); |
| 0 | 1818 } |
| 1819 | |
| 1820 oop java_lang_reflect_Method::clazz(oop reflect) { | |
| 1821 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1822 return reflect->obj_field(clazz_offset); | |
| 1823 } | |
| 1824 | |
| 1825 void java_lang_reflect_Method::set_clazz(oop reflect, oop value) { | |
| 1826 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1827 reflect->obj_field_put(clazz_offset, value); | |
| 1828 } | |
| 1829 | |
| 1830 int java_lang_reflect_Method::slot(oop reflect) { | |
| 1831 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1832 return reflect->int_field(slot_offset); | |
| 1833 } | |
| 1834 | |
| 1835 void java_lang_reflect_Method::set_slot(oop reflect, int value) { | |
| 1836 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1837 reflect->int_field_put(slot_offset, value); | |
| 1838 } | |
| 1839 | |
| 1840 oop java_lang_reflect_Method::name(oop method) { | |
| 1841 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1842 return method->obj_field(name_offset); | |
| 1843 } | |
| 1844 | |
| 1845 void java_lang_reflect_Method::set_name(oop method, oop value) { | |
| 1846 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1847 method->obj_field_put(name_offset, value); | |
| 1848 } | |
| 1849 | |
| 1850 oop java_lang_reflect_Method::return_type(oop method) { | |
| 1851 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1852 return method->obj_field(returnType_offset); | |
| 1853 } | |
| 1854 | |
| 1855 void java_lang_reflect_Method::set_return_type(oop method, oop value) { | |
| 1856 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1857 method->obj_field_put(returnType_offset, value); | |
| 1858 } | |
| 1859 | |
| 1860 oop java_lang_reflect_Method::parameter_types(oop method) { | |
| 1861 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1862 return method->obj_field(parameterTypes_offset); | |
| 1863 } | |
| 1864 | |
| 1865 void java_lang_reflect_Method::set_parameter_types(oop method, oop value) { | |
| 1866 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1867 method->obj_field_put(parameterTypes_offset, value); | |
| 1868 } | |
| 1869 | |
| 1870 oop java_lang_reflect_Method::exception_types(oop method) { | |
| 1871 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1872 return method->obj_field(exceptionTypes_offset); | |
| 1873 } | |
| 1874 | |
| 1875 void java_lang_reflect_Method::set_exception_types(oop method, oop value) { | |
| 1876 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1877 method->obj_field_put(exceptionTypes_offset, value); | |
| 1878 } | |
| 1879 | |
| 1880 int java_lang_reflect_Method::modifiers(oop method) { | |
| 1881 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1882 return method->int_field(modifiers_offset); | |
| 1883 } | |
| 1884 | |
| 1885 void java_lang_reflect_Method::set_modifiers(oop method, int value) { | |
| 1886 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1887 method->int_field_put(modifiers_offset, value); | |
| 1888 } | |
| 1889 | |
| 1890 bool java_lang_reflect_Method::has_signature_field() { | |
| 1891 return (signature_offset >= 0); | |
| 1892 } | |
| 1893 | |
| 1894 oop java_lang_reflect_Method::signature(oop method) { | |
| 1895 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1896 assert(has_signature_field(), "signature field must be present"); | |
| 1897 return method->obj_field(signature_offset); | |
| 1898 } | |
| 1899 | |
| 1900 void java_lang_reflect_Method::set_signature(oop method, oop value) { | |
| 1901 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1902 assert(has_signature_field(), "signature field must be present"); | |
| 1903 method->obj_field_put(signature_offset, value); | |
| 1904 } | |
| 1905 | |
| 1906 bool java_lang_reflect_Method::has_annotations_field() { | |
| 1907 return (annotations_offset >= 0); | |
| 1908 } | |
| 1909 | |
| 1910 oop java_lang_reflect_Method::annotations(oop method) { | |
| 1911 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1912 assert(has_annotations_field(), "annotations field must be present"); | |
| 1913 return method->obj_field(annotations_offset); | |
| 1914 } | |
| 1915 | |
| 1916 void java_lang_reflect_Method::set_annotations(oop method, oop value) { | |
| 1917 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1918 assert(has_annotations_field(), "annotations field must be present"); | |
| 1919 method->obj_field_put(annotations_offset, value); | |
| 1920 } | |
| 1921 | |
| 1922 bool java_lang_reflect_Method::has_parameter_annotations_field() { | |
| 1923 return (parameter_annotations_offset >= 0); | |
| 1924 } | |
| 1925 | |
| 1926 oop java_lang_reflect_Method::parameter_annotations(oop method) { | |
| 1927 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1928 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1929 return method->obj_field(parameter_annotations_offset); | |
| 1930 } | |
| 1931 | |
| 1932 void java_lang_reflect_Method::set_parameter_annotations(oop method, oop value) { | |
| 1933 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1934 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1935 method->obj_field_put(parameter_annotations_offset, value); | |
| 1936 } | |
| 1937 | |
| 1938 bool java_lang_reflect_Method::has_annotation_default_field() { | |
| 1939 return (annotation_default_offset >= 0); | |
| 1940 } | |
| 1941 | |
| 1942 oop java_lang_reflect_Method::annotation_default(oop method) { | |
| 1943 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1944 assert(has_annotation_default_field(), "annotation default field must be present"); | |
| 1945 return method->obj_field(annotation_default_offset); | |
| 1946 } | |
| 1947 | |
| 1948 void java_lang_reflect_Method::set_annotation_default(oop method, oop value) { | |
| 1949 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1950 assert(has_annotation_default_field(), "annotation default field must be present"); | |
| 1951 method->obj_field_put(annotation_default_offset, value); | |
| 1952 } | |
| 1953 | |
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1954 bool java_lang_reflect_Method::has_type_annotations_field() { |
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1955 return (type_annotations_offset >= 0); |
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1956 } |
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1957 |
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1958 oop java_lang_reflect_Method::type_annotations(oop method) { |
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1959 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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1960 assert(has_type_annotations_field(), "type_annotations field must be present"); |
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1961 return method->obj_field(type_annotations_offset); |
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1962 } |
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1963 |
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1964 void java_lang_reflect_Method::set_type_annotations(oop method, oop value) { |
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1965 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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1966 assert(has_type_annotations_field(), "type_annotations field must be present"); |
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1967 method->obj_field_put(type_annotations_offset, value); |
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1968 } |
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1969 |
| 0 | 1970 void java_lang_reflect_Constructor::compute_offsets() { |
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1971 Klass* k = SystemDictionary::reflect_Constructor_klass(); |
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1972 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1973 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1974 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1975 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1976 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 1977 // The generic signature and annotations fields are only present in 1.5 |
| 1978 signature_offset = -1; | |
| 1979 annotations_offset = -1; | |
| 1980 parameter_annotations_offset = -1; | |
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1981 type_annotations_offset = -1; |
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1982 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1983 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1984 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
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1985 compute_optional_offset(type_annotations_offset, k, vmSymbols::type_annotations_name(), vmSymbols::byte_array_signature()); |
| 0 | 1986 } |
| 1987 | |
| 1988 Handle java_lang_reflect_Constructor::create(TRAPS) { | |
| 1989 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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1990 Symbol* name = vmSymbols::java_lang_reflect_Constructor(); |
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1991 Klass* k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
| 0 | 1992 instanceKlassHandle klass (THREAD, k); |
| 1993 // Ensure it is initialized | |
| 1994 klass->initialize(CHECK_NH); | |
| 1995 return klass->allocate_instance_handle(CHECK_NH); | |
| 1996 } | |
| 1997 | |
| 1998 oop java_lang_reflect_Constructor::clazz(oop reflect) { | |
| 1999 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2000 return reflect->obj_field(clazz_offset); | |
| 2001 } | |
| 2002 | |
| 2003 void java_lang_reflect_Constructor::set_clazz(oop reflect, oop value) { | |
| 2004 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2005 reflect->obj_field_put(clazz_offset, value); | |
| 2006 } | |
| 2007 | |
| 2008 oop java_lang_reflect_Constructor::parameter_types(oop constructor) { | |
| 2009 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2010 return constructor->obj_field(parameterTypes_offset); | |
| 2011 } | |
| 2012 | |
| 2013 void java_lang_reflect_Constructor::set_parameter_types(oop constructor, oop value) { | |
| 2014 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2015 constructor->obj_field_put(parameterTypes_offset, value); | |
| 2016 } | |
| 2017 | |
| 2018 oop java_lang_reflect_Constructor::exception_types(oop constructor) { | |
| 2019 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2020 return constructor->obj_field(exceptionTypes_offset); | |
| 2021 } | |
| 2022 | |
| 2023 void java_lang_reflect_Constructor::set_exception_types(oop constructor, oop value) { | |
| 2024 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2025 constructor->obj_field_put(exceptionTypes_offset, value); | |
| 2026 } | |
| 2027 | |
| 2028 int java_lang_reflect_Constructor::slot(oop reflect) { | |
| 2029 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2030 return reflect->int_field(slot_offset); | |
| 2031 } | |
| 2032 | |
| 2033 void java_lang_reflect_Constructor::set_slot(oop reflect, int value) { | |
| 2034 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2035 reflect->int_field_put(slot_offset, value); | |
| 2036 } | |
| 2037 | |
| 2038 int java_lang_reflect_Constructor::modifiers(oop constructor) { | |
| 2039 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2040 return constructor->int_field(modifiers_offset); | |
| 2041 } | |
| 2042 | |
| 2043 void java_lang_reflect_Constructor::set_modifiers(oop constructor, int value) { | |
| 2044 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2045 constructor->int_field_put(modifiers_offset, value); | |
| 2046 } | |
| 2047 | |
| 2048 bool java_lang_reflect_Constructor::has_signature_field() { | |
| 2049 return (signature_offset >= 0); | |
| 2050 } | |
| 2051 | |
| 2052 oop java_lang_reflect_Constructor::signature(oop constructor) { | |
| 2053 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2054 assert(has_signature_field(), "signature field must be present"); | |
| 2055 return constructor->obj_field(signature_offset); | |
| 2056 } | |
| 2057 | |
| 2058 void java_lang_reflect_Constructor::set_signature(oop constructor, oop value) { | |
| 2059 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2060 assert(has_signature_field(), "signature field must be present"); | |
| 2061 constructor->obj_field_put(signature_offset, value); | |
| 2062 } | |
| 2063 | |
| 2064 bool java_lang_reflect_Constructor::has_annotations_field() { | |
| 2065 return (annotations_offset >= 0); | |
| 2066 } | |
| 2067 | |
| 2068 oop java_lang_reflect_Constructor::annotations(oop constructor) { | |
| 2069 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2070 assert(has_annotations_field(), "annotations field must be present"); | |
| 2071 return constructor->obj_field(annotations_offset); | |
| 2072 } | |
| 2073 | |
| 2074 void java_lang_reflect_Constructor::set_annotations(oop constructor, oop value) { | |
| 2075 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2076 assert(has_annotations_field(), "annotations field must be present"); | |
| 2077 constructor->obj_field_put(annotations_offset, value); | |
| 2078 } | |
| 2079 | |
| 2080 bool java_lang_reflect_Constructor::has_parameter_annotations_field() { | |
| 2081 return (parameter_annotations_offset >= 0); | |
| 2082 } | |
| 2083 | |
| 2084 oop java_lang_reflect_Constructor::parameter_annotations(oop method) { | |
| 2085 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2086 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 2087 return method->obj_field(parameter_annotations_offset); | |
| 2088 } | |
| 2089 | |
| 2090 void java_lang_reflect_Constructor::set_parameter_annotations(oop method, oop value) { | |
| 2091 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2092 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 2093 method->obj_field_put(parameter_annotations_offset, value); | |
| 2094 } | |
| 2095 | |
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2096 bool java_lang_reflect_Constructor::has_type_annotations_field() { |
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2097 return (type_annotations_offset >= 0); |
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2098 } |
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2099 |
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2100 oop java_lang_reflect_Constructor::type_annotations(oop constructor) { |
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2101 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2102 assert(has_type_annotations_field(), "type_annotations field must be present"); |
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2103 return constructor->obj_field(type_annotations_offset); |
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2104 } |
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2105 |
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2106 void java_lang_reflect_Constructor::set_type_annotations(oop constructor, oop value) { |
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2107 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2108 assert(has_type_annotations_field(), "type_annotations field must be present"); |
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2109 constructor->obj_field_put(type_annotations_offset, value); |
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2110 } |
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2111 |
| 0 | 2112 void java_lang_reflect_Field::compute_offsets() { |
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2113 Klass* k = SystemDictionary::reflect_Field_klass(); |
|
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2114 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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2115 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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2116 compute_offset(type_offset, k, vmSymbols::type_name(), vmSymbols::class_signature()); |
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2117 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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2118 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 2119 // The generic signature and annotations fields are only present in 1.5 |
| 2120 signature_offset = -1; | |
| 2121 annotations_offset = -1; | |
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2122 type_annotations_offset = -1; |
|
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2123 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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2124 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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2125 compute_optional_offset(type_annotations_offset, k, vmSymbols::type_annotations_name(), vmSymbols::byte_array_signature()); |
| 0 | 2126 } |
| 2127 | |
| 2128 Handle java_lang_reflect_Field::create(TRAPS) { | |
| 2129 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
|
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2130 Symbol* name = vmSymbols::java_lang_reflect_Field(); |
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2131 Klass* k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
| 0 | 2132 instanceKlassHandle klass (THREAD, k); |
| 2133 // Ensure it is initialized | |
| 2134 klass->initialize(CHECK_NH); | |
| 2135 return klass->allocate_instance_handle(CHECK_NH); | |
| 2136 } | |
| 2137 | |
| 2138 oop java_lang_reflect_Field::clazz(oop reflect) { | |
| 2139 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2140 return reflect->obj_field(clazz_offset); | |
| 2141 } | |
| 2142 | |
| 2143 void java_lang_reflect_Field::set_clazz(oop reflect, oop value) { | |
| 2144 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2145 reflect->obj_field_put(clazz_offset, value); | |
| 2146 } | |
| 2147 | |
| 2148 oop java_lang_reflect_Field::name(oop field) { | |
| 2149 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2150 return field->obj_field(name_offset); | |
| 2151 } | |
| 2152 | |
| 2153 void java_lang_reflect_Field::set_name(oop field, oop value) { | |
| 2154 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2155 field->obj_field_put(name_offset, value); | |
| 2156 } | |
| 2157 | |
| 2158 oop java_lang_reflect_Field::type(oop field) { | |
| 2159 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2160 return field->obj_field(type_offset); | |
| 2161 } | |
| 2162 | |
| 2163 void java_lang_reflect_Field::set_type(oop field, oop value) { | |
| 2164 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2165 field->obj_field_put(type_offset, value); | |
| 2166 } | |
| 2167 | |
| 2168 int java_lang_reflect_Field::slot(oop reflect) { | |
| 2169 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2170 return reflect->int_field(slot_offset); | |
| 2171 } | |
| 2172 | |
| 2173 void java_lang_reflect_Field::set_slot(oop reflect, int value) { | |
| 2174 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2175 reflect->int_field_put(slot_offset, value); | |
| 2176 } | |
| 2177 | |
| 2178 int java_lang_reflect_Field::modifiers(oop field) { | |
| 2179 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2180 return field->int_field(modifiers_offset); | |
| 2181 } | |
| 2182 | |
| 2183 void java_lang_reflect_Field::set_modifiers(oop field, int value) { | |
| 2184 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2185 field->int_field_put(modifiers_offset, value); | |
| 2186 } | |
| 2187 | |
| 2188 bool java_lang_reflect_Field::has_signature_field() { | |
| 2189 return (signature_offset >= 0); | |
| 2190 } | |
| 2191 | |
| 2192 oop java_lang_reflect_Field::signature(oop field) { | |
| 2193 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2194 assert(has_signature_field(), "signature field must be present"); | |
| 2195 return field->obj_field(signature_offset); | |
| 2196 } | |
| 2197 | |
| 2198 void java_lang_reflect_Field::set_signature(oop field, oop value) { | |
| 2199 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2200 assert(has_signature_field(), "signature field must be present"); | |
| 2201 field->obj_field_put(signature_offset, value); | |
| 2202 } | |
| 2203 | |
| 2204 bool java_lang_reflect_Field::has_annotations_field() { | |
| 2205 return (annotations_offset >= 0); | |
| 2206 } | |
| 2207 | |
| 2208 oop java_lang_reflect_Field::annotations(oop field) { | |
| 2209 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2210 assert(has_annotations_field(), "annotations field must be present"); | |
| 2211 return field->obj_field(annotations_offset); | |
| 2212 } | |
| 2213 | |
| 2214 void java_lang_reflect_Field::set_annotations(oop field, oop value) { | |
| 2215 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2216 assert(has_annotations_field(), "annotations field must be present"); | |
| 2217 field->obj_field_put(annotations_offset, value); | |
| 2218 } | |
| 2219 | |
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2220 bool java_lang_reflect_Field::has_type_annotations_field() { |
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2221 return (type_annotations_offset >= 0); |
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2222 } |
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2223 |
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2224 oop java_lang_reflect_Field::type_annotations(oop field) { |
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2225 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2226 assert(has_type_annotations_field(), "type_annotations field must be present"); |
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2227 return field->obj_field(type_annotations_offset); |
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2228 } |
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2229 |
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2230 void java_lang_reflect_Field::set_type_annotations(oop field, oop value) { |
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2231 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2232 assert(has_type_annotations_field(), "type_annotations field must be present"); |
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2233 field->obj_field_put(type_annotations_offset, value); |
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2234 } |
| 0 | 2235 |
| 2236 void sun_reflect_ConstantPool::compute_offsets() { | |
|
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2237 Klass* k = SystemDictionary::reflect_ConstantPool_klass(); |
| 0 | 2238 // This null test can be removed post beta |
| 2239 if (k != NULL) { | |
|
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2240 // The field is called ConstantPool* in the sun.reflect.ConstantPool class. |
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2241 compute_offset(_oop_offset, k, vmSymbols::ConstantPool_name(), vmSymbols::object_signature()); |
| 0 | 2242 } |
| 2243 } | |
| 2244 | |
|
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2245 void java_lang_reflect_Parameter::compute_offsets() { |
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2246 Klass* k = SystemDictionary::reflect_Parameter_klass(); |
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2247 if(NULL != k) { |
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2248 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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2249 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
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2250 compute_offset(index_offset, k, vmSymbols::index_name(), vmSymbols::int_signature()); |
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2251 compute_offset(executable_offset, k, vmSymbols::executable_name(), vmSymbols::executable_signature()); |
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2252 } |
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2253 } |
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2254 |
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2255 Handle java_lang_reflect_Parameter::create(TRAPS) { |
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2256 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2257 Symbol* name = vmSymbols::java_lang_reflect_Parameter(); |
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2258 Klass* k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
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2259 instanceKlassHandle klass (THREAD, k); |
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2260 // Ensure it is initialized |
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2261 klass->initialize(CHECK_NH); |
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2262 return klass->allocate_instance_handle(CHECK_NH); |
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2263 } |
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2264 |
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2265 oop java_lang_reflect_Parameter::name(oop param) { |
|
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2266 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2267 return param->obj_field(name_offset); |
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2268 } |
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2269 |
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2270 void java_lang_reflect_Parameter::set_name(oop param, oop value) { |
|
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2271 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2272 param->obj_field_put(name_offset, value); |
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2273 } |
|
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2274 |
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2275 int java_lang_reflect_Parameter::modifiers(oop param) { |
|
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2276 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2277 return param->int_field(modifiers_offset); |
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2278 } |
|
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2279 |
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2280 void java_lang_reflect_Parameter::set_modifiers(oop param, int value) { |
|
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2281 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2282 param->int_field_put(modifiers_offset, value); |
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2283 } |
|
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2284 |
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2285 int java_lang_reflect_Parameter::index(oop param) { |
|
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2286 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2287 return param->int_field(index_offset); |
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2288 } |
|
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2289 |
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2290 void java_lang_reflect_Parameter::set_index(oop param, int value) { |
|
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2291 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
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2292 param->int_field_put(index_offset, value); |
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2293 } |
|
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2294 |
|
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2295 oop java_lang_reflect_Parameter::executable(oop param) { |
|
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2296 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
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2297 return param->obj_field(executable_offset); |
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2298 } |
|
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2299 |
|
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2300 void java_lang_reflect_Parameter::set_executable(oop param, oop value) { |
|
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2301 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
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2302 param->obj_field_put(executable_offset, value); |
|
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2303 } |
|
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2304 |
| 0 | 2305 |
| 2306 Handle sun_reflect_ConstantPool::create(TRAPS) { | |
| 2307 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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2308 Klass* k = SystemDictionary::reflect_ConstantPool_klass(); |
| 0 | 2309 instanceKlassHandle klass (THREAD, k); |
| 2310 // Ensure it is initialized | |
| 2311 klass->initialize(CHECK_NH); | |
| 2312 return klass->allocate_instance_handle(CHECK_NH); | |
| 2313 } | |
| 2314 | |
| 2315 | |
|
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2316 void sun_reflect_ConstantPool::set_cp(oop reflect, ConstantPool* value) { |
| 0 | 2317 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
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2318 oop mirror = value->pool_holder()->java_mirror(); |
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2319 // Save the mirror to get back the constant pool. |
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2320 reflect->obj_field_put(_oop_offset, mirror); |
| 0 | 2321 } |
| 2322 | |
|
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2323 ConstantPool* sun_reflect_ConstantPool::get_cp(oop reflect) { |
| 0 | 2324 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
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2325 |
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2326 oop mirror = reflect->obj_field(_oop_offset); |
|
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2327 Klass* k = java_lang_Class::as_Klass(mirror); |
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2328 assert(k->oop_is_instance(), "Must be"); |
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2329 |
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2330 // Get the constant pool back from the klass. Since class redefinition |
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2331 // merges the new constant pool into the old, this is essentially the |
|
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2332 // same constant pool as the original. If constant pool merging is |
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2333 // no longer done in the future, this will have to change to save |
|
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2334 // the original. |
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2335 return InstanceKlass::cast(k)->constants(); |
| 0 | 2336 } |
| 2337 | |
| 2338 void sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets() { | |
|
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2339 Klass* k = SystemDictionary::reflect_UnsafeStaticFieldAccessorImpl_klass(); |
| 0 | 2340 // This null test can be removed post beta |
| 2341 if (k != NULL) { | |
|
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2342 compute_offset(_base_offset, k, |
| 0 | 2343 vmSymbols::base_name(), vmSymbols::object_signature()); |
| 2344 } | |
| 2345 } | |
| 2346 | |
|
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2347 oop java_lang_boxing_object::initialize_and_allocate(BasicType type, TRAPS) { |
|
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2348 Klass* k = SystemDictionary::box_klass(type); |
|
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2349 if (k == NULL) return NULL; |
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2350 instanceKlassHandle h (THREAD, k); |
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2351 if (!h->is_initialized()) h->initialize(CHECK_0); |
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2352 return h->allocate_instance(THREAD); |
| 0 | 2353 } |
| 2354 | |
| 2355 | |
| 2356 oop java_lang_boxing_object::create(BasicType type, jvalue* value, TRAPS) { | |
|
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2357 oop box = initialize_and_allocate(type, CHECK_0); |
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2358 if (box == NULL) return NULL; |
| 0 | 2359 switch (type) { |
| 2360 case T_BOOLEAN: | |
| 2361 box->bool_field_put(value_offset, value->z); | |
| 2362 break; | |
| 2363 case T_CHAR: | |
| 2364 box->char_field_put(value_offset, value->c); | |
| 2365 break; | |
| 2366 case T_FLOAT: | |
| 2367 box->float_field_put(value_offset, value->f); | |
| 2368 break; | |
| 2369 case T_DOUBLE: | |
|
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2370 box->double_field_put(long_value_offset, value->d); |
| 0 | 2371 break; |
| 2372 case T_BYTE: | |
| 2373 box->byte_field_put(value_offset, value->b); | |
| 2374 break; | |
| 2375 case T_SHORT: | |
| 2376 box->short_field_put(value_offset, value->s); | |
| 2377 break; | |
| 2378 case T_INT: | |
| 2379 box->int_field_put(value_offset, value->i); | |
| 2380 break; | |
| 2381 case T_LONG: | |
|
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2382 box->long_field_put(long_value_offset, value->j); |
| 0 | 2383 break; |
| 2384 default: | |
| 2385 return NULL; | |
| 2386 } | |
| 2387 return box; | |
| 2388 } | |
| 2389 | |
| 2390 | |
|
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2391 BasicType java_lang_boxing_object::basic_type(oop box) { |
|
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2392 if (box == NULL) return T_ILLEGAL; |
|
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2393 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
|
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2394 if (type == T_OBJECT) // 'unknown' value returned by SD::bkt |
|
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|
2395 return T_ILLEGAL; |
|
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|
2396 return type; |
|
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|
2397 } |
|
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2398 |
|
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2399 |
| 0 | 2400 BasicType java_lang_boxing_object::get_value(oop box, jvalue* value) { |
|
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2401 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2402 switch (type) { |
|
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2403 case T_BOOLEAN: |
| 0 | 2404 value->z = box->bool_field(value_offset); |
|
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2405 break; |
|
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2406 case T_CHAR: |
| 0 | 2407 value->c = box->char_field(value_offset); |
|
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2408 break; |
|
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2409 case T_FLOAT: |
| 0 | 2410 value->f = box->float_field(value_offset); |
|
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2411 break; |
|
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|
2412 case T_DOUBLE: |
|
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2413 value->d = box->double_field(long_value_offset); |
|
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2414 break; |
|
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2415 case T_BYTE: |
| 0 | 2416 value->b = box->byte_field(value_offset); |
|
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|
2417 break; |
|
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2418 case T_SHORT: |
| 0 | 2419 value->s = box->short_field(value_offset); |
|
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|
2420 break; |
|
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|
2421 case T_INT: |
| 0 | 2422 value->i = box->int_field(value_offset); |
|
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|
2423 break; |
|
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|
2424 case T_LONG: |
|
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2425 value->j = box->long_field(long_value_offset); |
|
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|
2426 break; |
|
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|
2427 default: |
|
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|
2428 return T_ILLEGAL; |
|
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|
2429 } // end switch |
|
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|
2430 return type; |
| 0 | 2431 } |
| 2432 | |
| 2433 | |
| 2434 BasicType java_lang_boxing_object::set_value(oop box, jvalue* value) { | |
|
132
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2435 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
|
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|
2436 switch (type) { |
|
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|
2437 case T_BOOLEAN: |
| 0 | 2438 box->bool_field_put(value_offset, value->z); |
|
132
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|
2439 break; |
|
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|
2440 case T_CHAR: |
| 0 | 2441 box->char_field_put(value_offset, value->c); |
|
132
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|
2442 break; |
|
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|
2443 case T_FLOAT: |
| 0 | 2444 box->float_field_put(value_offset, value->f); |
|
132
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|
2445 break; |
|
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|
2446 case T_DOUBLE: |
|
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|
2447 box->double_field_put(long_value_offset, value->d); |
|
132
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|
2448 break; |
|
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|
2449 case T_BYTE: |
| 0 | 2450 box->byte_field_put(value_offset, value->b); |
|
132
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|
2451 break; |
|
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|
2452 case T_SHORT: |
| 0 | 2453 box->short_field_put(value_offset, value->s); |
|
132
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|
2454 break; |
|
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|
2455 case T_INT: |
| 0 | 2456 box->int_field_put(value_offset, value->i); |
|
132
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|
2457 break; |
|
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|
2458 case T_LONG: |
|
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|
2459 box->long_field_put(long_value_offset, value->j); |
|
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|
2460 break; |
|
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|
2461 default: |
|
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|
2462 return T_ILLEGAL; |
|
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|
2463 } // end switch |
|
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|
2464 return type; |
| 0 | 2465 } |
| 2466 | |
| 2467 | |
|
665
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|
2468 void java_lang_boxing_object::print(BasicType type, jvalue* value, outputStream* st) { |
|
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|
2469 switch (type) { |
|
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|
2470 case T_BOOLEAN: st->print("%s", value->z ? "true" : "false"); break; |
|
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diff
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|
2471 case T_CHAR: st->print("%d", value->c); break; |
|
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diff
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|
2472 case T_BYTE: st->print("%d", value->b); break; |
|
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diff
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|
2473 case T_SHORT: st->print("%d", value->s); break; |
|
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diff
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|
2474 case T_INT: st->print("%d", value->i); break; |
|
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|
2475 case T_LONG: st->print(INT64_FORMAT, value->j); break; |
|
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|
2476 case T_FLOAT: st->print("%f", value->f); break; |
|
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diff
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|
2477 case T_DOUBLE: st->print("%lf", value->d); break; |
|
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579
diff
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|
2478 default: st->print("type %d?", type); break; |
|
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579
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|
2479 } |
|
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|
2480 } |
|
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|
2481 |
|
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|
2482 |
| 0 | 2483 // Support for java_lang_ref_Reference |
|
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|
2484 HeapWord *java_lang_ref_Reference::pending_list_lock_addr() { |
|
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|
2485 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Reference_klass()); |
|
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|
2486 address addr = ik->static_field_addr(static_lock_offset); |
|
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|
2487 return (HeapWord*) addr; |
|
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|
2488 } |
|
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changeset
|
2489 |
|
113
ba764ed4b6f2
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coleenp
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diff
changeset
|
2490 oop java_lang_ref_Reference::pending_list_lock() { |
|
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changeset
|
2491 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Reference_klass()); |
|
2376
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7017732: move static fields into Class to prepare for perm gen removal
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parents:
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changeset
|
2492 address addr = ik->static_field_addr(static_lock_offset); |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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diff
changeset
|
2493 if (UseCompressedOops) { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
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diff
changeset
|
2494 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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diff
changeset
|
2495 } else { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
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diff
changeset
|
2496 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
|
2497 } |
| 0 | 2498 } |
| 2499 | |
|
113
ba764ed4b6f2
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coleenp
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diff
changeset
|
2500 HeapWord *java_lang_ref_Reference::pending_list_addr() { |
|
6725
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6964458: Reimplement class meta-data storage to use native memory
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changeset
|
2501 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Reference_klass()); |
|
2376
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parents:
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diff
changeset
|
2502 address addr = ik->static_field_addr(static_pending_offset); |
|
113
ba764ed4b6f2
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diff
changeset
|
2503 // 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
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diff
changeset
|
2504 return (HeapWord*)addr; |
| 0 | 2505 } |
| 2506 | |
|
113
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coleenp
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diff
changeset
|
2507 oop java_lang_ref_Reference::pending_list() { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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diff
changeset
|
2508 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
|
2509 if (UseCompressedOops) { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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parents:
98
diff
changeset
|
2510 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
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changeset
|
2511 } else { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
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diff
changeset
|
2512 return oopDesc::load_decode_heap_oop((oop*)addr); |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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changeset
|
2513 } |
| 0 | 2514 } |
| 2515 | |
| 2516 | |
| 2517 // Support for java_lang_ref_SoftReference | |
| 2518 | |
| 2519 jlong java_lang_ref_SoftReference::timestamp(oop ref) { | |
| 2520 return ref->long_field(timestamp_offset); | |
| 2521 } | |
| 2522 | |
| 2523 jlong java_lang_ref_SoftReference::clock() { | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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changeset
|
2524 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::SoftReference_klass()); |
|
2376
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parents:
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diff
changeset
|
2525 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
|
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
2357
diff
changeset
|
2526 return *offset; |
| 0 | 2527 } |
| 2528 | |
| 2529 void java_lang_ref_SoftReference::set_clock(jlong value) { | |
|
6725
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6964458: Reimplement class meta-data storage to use native memory
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changeset
|
2530 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::SoftReference_klass()); |
|
2376
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7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2531 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
|
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
2357
diff
changeset
|
2532 *offset = value; |
| 0 | 2533 } |
| 2534 | |
| 2535 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
changeset
|
2536 // Support for java_lang_invoke_MethodHandle |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
changeset
|
2537 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
changeset
|
2538 int java_lang_invoke_MethodHandle::_type_offset; |
|
6266
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changeset
|
2539 int java_lang_invoke_MethodHandle::_form_offset; |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2540 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2541 int java_lang_invoke_MemberName::_clazz_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2542 int java_lang_invoke_MemberName::_name_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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parents:
2356
diff
changeset
|
2543 int java_lang_invoke_MemberName::_type_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2544 int java_lang_invoke_MemberName::_flags_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2545 int java_lang_invoke_MemberName::_vmtarget_offset; |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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changeset
|
2546 int java_lang_invoke_MemberName::_vmloader_offset; |
|
2357
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
changeset
|
2547 int java_lang_invoke_MemberName::_vmindex_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
changeset
|
2548 |
|
6266
1d7922586cf6
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changeset
|
2549 int java_lang_invoke_LambdaForm::_vmentry_offset; |
|
3905
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3900
diff
changeset
|
2550 |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2551 void java_lang_invoke_MethodHandle::compute_offsets() { |
|
6725
da91efe96a93
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changeset
|
2552 Klass* klass_oop = SystemDictionary::MethodHandle_klass(); |
| 3938 | 2553 if (klass_oop != NULL && EnableInvokeDynamic) { |
|
6266
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7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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6224
diff
changeset
|
2554 compute_offset(_type_offset, klass_oop, vmSymbols::type_name(), vmSymbols::java_lang_invoke_MethodType_signature()); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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6224
diff
changeset
|
2555 compute_optional_offset(_form_offset, klass_oop, vmSymbols::form_name(), vmSymbols::java_lang_invoke_LambdaForm_signature()); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
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diff
changeset
|
2556 if (_form_offset == 0) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2557 EnableInvokeDynamic = false; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2558 } |
| 710 | 2559 } |
| 2560 } | |
| 2561 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2562 void java_lang_invoke_MemberName::compute_offsets() { |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6267
diff
changeset
|
2563 Klass* klass_oop = SystemDictionary::MemberName_klass(); |
| 3938 | 2564 if (klass_oop != NULL && EnableInvokeDynamic) { |
| 2565 compute_offset(_clazz_offset, klass_oop, vmSymbols::clazz_name(), vmSymbols::class_signature()); | |
| 2566 compute_offset(_name_offset, klass_oop, vmSymbols::name_name(), vmSymbols::string_signature()); | |
| 2567 compute_offset(_type_offset, klass_oop, vmSymbols::type_name(), vmSymbols::object_signature()); | |
| 2568 compute_offset(_flags_offset, klass_oop, vmSymbols::flags_name(), vmSymbols::int_signature()); | |
| 2569 MEMBERNAME_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
| 710 | 2570 } |
| 2571 } | |
| 2572 | |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2573 void java_lang_invoke_LambdaForm::compute_offsets() { |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6267
diff
changeset
|
2574 Klass* klass_oop = SystemDictionary::LambdaForm_klass(); |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2575 if (klass_oop != NULL && EnableInvokeDynamic) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2576 compute_offset(_vmentry_offset, klass_oop, vmSymbols::vmentry_name(), vmSymbols::java_lang_invoke_MemberName_signature()); |
| 710 | 2577 } |
| 2578 } | |
| 2579 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2580 oop java_lang_invoke_MethodHandle::type(oop mh) { |
| 710 | 2581 return mh->obj_field(_type_offset); |
| 2582 } | |
| 2583 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2584 void java_lang_invoke_MethodHandle::set_type(oop mh, oop mtype) { |
| 710 | 2585 mh->obj_field_put(_type_offset, mtype); |
| 2586 } | |
| 2587 | |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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parents:
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diff
changeset
|
2588 oop java_lang_invoke_MethodHandle::form(oop mh) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2589 assert(_form_offset != 0, ""); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2590 return mh->obj_field(_form_offset); |
| 710 | 2591 } |
| 2592 | |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2593 void java_lang_invoke_MethodHandle::set_form(oop mh, oop lform) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2594 assert(_form_offset != 0, ""); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2595 mh->obj_field_put(_form_offset, lform); |
| 710 | 2596 } |
| 2597 | |
| 2598 /// MemberName accessors | |
| 2599 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2600 oop java_lang_invoke_MemberName::clazz(oop mname) { |
| 710 | 2601 assert(is_instance(mname), "wrong type"); |
| 2602 return mname->obj_field(_clazz_offset); | |
| 2603 } | |
| 2604 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2605 void java_lang_invoke_MemberName::set_clazz(oop mname, oop clazz) { |
| 710 | 2606 assert(is_instance(mname), "wrong type"); |
| 2607 mname->obj_field_put(_clazz_offset, clazz); | |
| 2608 } | |
| 2609 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2610 oop java_lang_invoke_MemberName::name(oop mname) { |
| 710 | 2611 assert(is_instance(mname), "wrong type"); |
| 2612 return mname->obj_field(_name_offset); | |
| 2613 } | |
| 2614 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2615 void java_lang_invoke_MemberName::set_name(oop mname, oop name) { |
| 710 | 2616 assert(is_instance(mname), "wrong type"); |
| 2617 mname->obj_field_put(_name_offset, name); | |
| 2618 } | |
| 2619 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2620 oop java_lang_invoke_MemberName::type(oop mname) { |
| 710 | 2621 assert(is_instance(mname), "wrong type"); |
| 2622 return mname->obj_field(_type_offset); | |
| 2623 } | |
| 2624 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2625 void java_lang_invoke_MemberName::set_type(oop mname, oop type) { |
| 710 | 2626 assert(is_instance(mname), "wrong type"); |
| 2627 mname->obj_field_put(_type_offset, type); | |
| 2628 } | |
| 2629 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2630 int java_lang_invoke_MemberName::flags(oop mname) { |
| 710 | 2631 assert(is_instance(mname), "wrong type"); |
| 2632 return mname->int_field(_flags_offset); | |
| 2633 } | |
| 2634 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2635 void java_lang_invoke_MemberName::set_flags(oop mname, int flags) { |
| 710 | 2636 assert(is_instance(mname), "wrong type"); |
| 2637 mname->int_field_put(_flags_offset, flags); | |
| 2638 } | |
| 2639 | |
|
6725
da91efe96a93
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6267
diff
changeset
|
2640 Metadata* java_lang_invoke_MemberName::vmtarget(oop mname) { |
| 710 | 2641 assert(is_instance(mname), "wrong type"); |
|
6725
da91efe96a93
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diff
changeset
|
2642 return (Metadata*)mname->address_field(_vmtarget_offset); |
| 710 | 2643 } |
| 2644 | |
|
6725
da91efe96a93
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coleenp
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diff
changeset
|
2645 void java_lang_invoke_MemberName::set_vmtarget(oop mname, Metadata* ref) { |
| 710 | 2646 assert(is_instance(mname), "wrong type"); |
|
6266
1d7922586cf6
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6224
diff
changeset
|
2647 // check the type of the vmtarget |
|
7185
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8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
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7180
diff
changeset
|
2648 oop dependency = NULL; |
|
6266
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7023639: JSR 292 method handle invocation needs a fast path for compiled code
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6224
diff
changeset
|
2649 if (ref != NULL) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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6224
diff
changeset
|
2650 switch (flags(mname) & (MN_IS_METHOD | |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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6224
diff
changeset
|
2651 MN_IS_CONSTRUCTOR | |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2652 MN_IS_FIELD)) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2653 case MN_IS_METHOD: |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2654 case MN_IS_CONSTRUCTOR: |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2655 assert(ref->is_method(), "should be a method"); |
|
7185
90273fc0a981
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
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diff
changeset
|
2656 dependency = ((Method*)ref)->method_holder()->java_mirror(); |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2657 break; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2658 case MN_IS_FIELD: |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2659 assert(ref->is_klass(), "should be a class"); |
|
7185
90273fc0a981
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
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diff
changeset
|
2660 dependency = ((Klass*)ref)->java_mirror(); |
|
6266
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7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2661 break; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2662 default: |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2663 ShouldNotReachHere(); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2664 } |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2665 } |
|
6725
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6267
diff
changeset
|
2666 mname->address_field_put(_vmtarget_offset, (address)ref); |
|
7185
90273fc0a981
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents:
7180
diff
changeset
|
2667 // Add a reference to the loader (actually mirror because anonymous classes will not have |
|
90273fc0a981
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
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7180
diff
changeset
|
2668 // distinct loaders) to ensure the metadata is kept alive |
|
90273fc0a981
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7180
diff
changeset
|
2669 // This mirror may be different than the one in clazz field. |
|
90273fc0a981
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7180
diff
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|
2670 mname->obj_field_put(_vmloader_offset, dependency); |
| 710 | 2671 } |
| 2672 | |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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6224
diff
changeset
|
2673 intptr_t java_lang_invoke_MemberName::vmindex(oop mname) { |
| 710 | 2674 assert(is_instance(mname), "wrong type"); |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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6224
diff
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|
2675 return (intptr_t) mname->address_field(_vmindex_offset); |
| 710 | 2676 } |
| 2677 | |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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6224
diff
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|
2678 void java_lang_invoke_MemberName::set_vmindex(oop mname, intptr_t index) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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6224
diff
changeset
|
2679 assert(is_instance(mname), "wrong type"); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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6224
diff
changeset
|
2680 mname->address_field_put(_vmindex_offset, (address) index); |
| 710 | 2681 } |
| 2682 | |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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6224
diff
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|
2683 oop java_lang_invoke_LambdaForm::vmentry(oop lform) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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6224
diff
changeset
|
2684 assert(is_instance(lform), "wrong type"); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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parents:
6224
diff
changeset
|
2685 return lform->obj_field(_vmentry_offset); |
| 710 | 2686 } |
| 2687 | |
| 2688 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2689 // Support for java_lang_invoke_MethodType |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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parents:
2356
diff
changeset
|
2690 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2691 int java_lang_invoke_MethodType::_rtype_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2692 int java_lang_invoke_MethodType::_ptypes_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
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|
2693 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
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|
2694 void java_lang_invoke_MethodType::compute_offsets() { |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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|
2695 Klass* k = SystemDictionary::MethodType_klass(); |
| 710 | 2696 if (k != NULL) { |
| 2697 compute_offset(_rtype_offset, k, vmSymbols::rtype_name(), vmSymbols::class_signature()); | |
| 2698 compute_offset(_ptypes_offset, k, vmSymbols::ptypes_name(), vmSymbols::class_array_signature()); | |
| 2699 } | |
| 2700 } | |
| 2701 | |
|
2357
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|
2702 void java_lang_invoke_MethodType::print_signature(oop mt, outputStream* st) { |
| 710 | 2703 st->print("("); |
| 2704 objArrayOop pts = ptypes(mt); | |
| 2705 for (int i = 0, limit = pts->length(); i < limit; i++) { | |
| 2706 java_lang_Class::print_signature(pts->obj_at(i), st); | |
| 2707 } | |
| 2708 st->print(")"); | |
| 2709 java_lang_Class::print_signature(rtype(mt), st); | |
| 2710 } | |
| 2711 | |
|
2357
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diff
changeset
|
2712 Symbol* java_lang_invoke_MethodType::as_signature(oop mt, bool intern_if_not_found, TRAPS) { |
| 710 | 2713 ResourceMark rm; |
| 2714 stringStream buffer(128); | |
| 2715 print_signature(mt, &buffer); | |
| 2716 const char* sigstr = buffer.base(); | |
| 2717 int siglen = (int) buffer.size(); | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
changeset
|
2718 Symbol *name; |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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1989
diff
changeset
|
2719 if (!intern_if_not_found) { |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
changeset
|
2720 name = SymbolTable::probe(sigstr, siglen); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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1989
diff
changeset
|
2721 } else { |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
changeset
|
2722 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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1989
diff
changeset
|
2723 } |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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1989
diff
changeset
|
2724 return name; |
| 710 | 2725 } |
| 2726 | |
|
3785
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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3363
diff
changeset
|
2727 bool java_lang_invoke_MethodType::equals(oop mt1, oop mt2) { |
|
6266
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diff
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|
2728 if (mt1 == mt2) |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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6224
diff
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|
2729 return true; |
|
3785
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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parents:
3363
diff
changeset
|
2730 if (rtype(mt1) != rtype(mt2)) |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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parents:
3363
diff
changeset
|
2731 return false; |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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parents:
3363
diff
changeset
|
2732 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
|
2733 return false; |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2734 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
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diff
changeset
|
2735 if (ptype(mt1, i) != ptype(mt2, i)) |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
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3363
diff
changeset
|
2736 return false; |
|
ddd894528dbc
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jrose
parents:
3363
diff
changeset
|
2737 } |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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parents:
3363
diff
changeset
|
2738 return true; |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2739 } |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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3363
diff
changeset
|
2740 |
|
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diff
changeset
|
2741 oop java_lang_invoke_MethodType::rtype(oop mt) { |
| 710 | 2742 assert(is_instance(mt), "must be a MethodType"); |
| 2743 return mt->obj_field(_rtype_offset); | |
| 2744 } | |
| 2745 | |
|
2357
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diff
changeset
|
2746 objArrayOop java_lang_invoke_MethodType::ptypes(oop mt) { |
| 710 | 2747 assert(is_instance(mt), "must be a MethodType"); |
| 2748 return (objArrayOop) mt->obj_field(_ptypes_offset); | |
| 2749 } | |
| 2750 | |
|
2357
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diff
changeset
|
2751 oop java_lang_invoke_MethodType::ptype(oop mt, int idx) { |
| 710 | 2752 return ptypes(mt)->obj_at(idx); |
| 2753 } | |
| 2754 | |
|
2357
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diff
changeset
|
2755 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
|
2756 return ptypes(mt)->length(); |
|
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
twisti
parents:
1096
diff
changeset
|
2757 } |
|
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
twisti
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1096
diff
changeset
|
2758 |
|
6266
1d7922586cf6
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6224
diff
changeset
|
2759 int java_lang_invoke_MethodType::ptype_slot_count(oop mt) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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6224
diff
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|
2760 objArrayOop pts = ptypes(mt); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2761 int count = pts->length(); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2762 int slots = 0; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2763 for (int i = 0; i < count; i++) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2764 BasicType bt = java_lang_Class::as_BasicType(pts->obj_at(i)); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2765 slots += type2size[bt]; |
| 710 | 2766 } |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2767 return slots; |
| 710 | 2768 } |
| 2769 | |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2770 int java_lang_invoke_MethodType::rtype_slot_count(oop mt) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2771 BasicType bt = java_lang_Class::as_BasicType(rtype(mt)); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2772 return type2size[bt]; |
|
1793
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2773 } |
|
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2774 |
| 710 | 2775 |
|
2357
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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parents:
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diff
changeset
|
2776 // Support for java_lang_invoke_CallSite |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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parents:
2356
diff
changeset
|
2777 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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parents:
2356
diff
changeset
|
2778 int java_lang_invoke_CallSite::_target_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2779 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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parents:
2356
diff
changeset
|
2780 void java_lang_invoke_CallSite::compute_offsets() { |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2781 if (!EnableInvokeDynamic) return; |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2782 Klass* k = SystemDictionary::CallSite_klass(); |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2783 if (k != NULL) { |
|
2357
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parents:
2356
diff
changeset
|
2784 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
|
2785 } |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2786 } |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2787 |
| 710 | 2788 |
| 0 | 2789 // Support for java_security_AccessControlContext |
| 2790 | |
| 2791 int java_security_AccessControlContext::_context_offset = 0; | |
| 2792 int java_security_AccessControlContext::_privilegedContext_offset = 0; | |
| 2793 int java_security_AccessControlContext::_isPrivileged_offset = 0; | |
| 2794 | |
| 2795 void java_security_AccessControlContext::compute_offsets() { | |
| 2796 assert(_isPrivileged_offset == 0, "offsets should be initialized only once"); | |
| 2797 fieldDescriptor fd; | |
|
6725
da91efe96a93
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coleenp
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6267
diff
changeset
|
2798 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::AccessControlContext_klass()); |
| 0 | 2799 |
| 2800 if (!ik->find_local_field(vmSymbols::context_name(), vmSymbols::protectiondomain_signature(), &fd)) { | |
| 2801 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2802 } | |
| 2803 _context_offset = fd.offset(); | |
| 2804 | |
| 2805 if (!ik->find_local_field(vmSymbols::privilegedContext_name(), vmSymbols::accesscontrolcontext_signature(), &fd)) { | |
| 2806 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2807 } | |
| 2808 _privilegedContext_offset = fd.offset(); | |
| 2809 | |
| 2810 if (!ik->find_local_field(vmSymbols::isPrivileged_name(), vmSymbols::bool_signature(), &fd)) { | |
| 2811 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2812 } | |
| 2813 _isPrivileged_offset = fd.offset(); | |
| 2814 } | |
| 2815 | |
| 2816 | |
| 2817 oop java_security_AccessControlContext::create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS) { | |
| 2818 assert(_isPrivileged_offset != 0, "offsets should have been initialized"); | |
| 2819 // Ensure klass is initialized | |
|
6725
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6267
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|
2820 InstanceKlass::cast(SystemDictionary::AccessControlContext_klass())->initialize(CHECK_0); |
| 0 | 2821 // Allocate result |
|
6725
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coleenp
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6267
diff
changeset
|
2822 oop result = InstanceKlass::cast(SystemDictionary::AccessControlContext_klass())->allocate_instance(CHECK_0); |
| 0 | 2823 // Fill in values |
| 2824 result->obj_field_put(_context_offset, context()); | |
| 2825 result->obj_field_put(_privilegedContext_offset, privileged_context()); | |
| 2826 result->bool_field_put(_isPrivileged_offset, isPrivileged); | |
| 2827 return result; | |
| 2828 } | |
| 2829 | |
| 2830 | |
| 2831 // Support for java_lang_ClassLoader | |
|
6725
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6267
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|
2832 |
| 3938 | 2833 bool java_lang_ClassLoader::offsets_computed = false; |
|
6725
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6267
diff
changeset
|
2834 int java_lang_ClassLoader::_loader_data_offset = -1; |
| 3938 | 2835 int java_lang_ClassLoader::parallelCapable_offset = -1; |
| 2836 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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6267
diff
changeset
|
2837 ClassLoaderData** java_lang_ClassLoader::loader_data_addr(oop loader) { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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6267
diff
changeset
|
2838 assert(loader != NULL && loader->is_oop(), "loader must be oop"); |
|
da91efe96a93
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6267
diff
changeset
|
2839 return (ClassLoaderData**) loader->address_field_addr(_loader_data_offset); |
|
da91efe96a93
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6267
diff
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|
2840 } |
|
da91efe96a93
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|
2841 |
|
da91efe96a93
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6267
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|
2842 ClassLoaderData* java_lang_ClassLoader::loader_data(oop loader) { |
|
da91efe96a93
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6267
diff
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|
2843 return *java_lang_ClassLoader::loader_data_addr(loader); |
|
da91efe96a93
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6267
diff
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|
2844 } |
|
da91efe96a93
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6267
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|
2845 |
| 3938 | 2846 void java_lang_ClassLoader::compute_offsets() { |
| 2847 assert(!offsets_computed, "offsets should be initialized only once"); | |
| 2848 offsets_computed = true; | |
| 2849 | |
| 2850 // The field indicating parallelCapable (parallelLockMap) is only present starting in 7, | |
|
6725
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coleenp
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6267
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|
2851 Klass* k1 = SystemDictionary::ClassLoader_klass(); |
| 3938 | 2852 compute_optional_offset(parallelCapable_offset, |
| 2853 k1, vmSymbols::parallelCapable_name(), vmSymbols::concurrenthashmap_signature()); | |
|
6725
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|
2854 |
|
da91efe96a93
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6267
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changeset
|
2855 CLASSLOADER_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); |
| 3938 | 2856 } |
| 0 | 2857 |
| 2858 oop java_lang_ClassLoader::parent(oop loader) { | |
|
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2859 assert(is_instance(loader), "loader must be oop"); |
| 0 | 2860 return loader->obj_field(parent_offset); |
| 2861 } | |
| 2862 | |
|
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2863 bool java_lang_ClassLoader::isAncestor(oop loader, oop cl) { |
|
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2864 assert(is_instance(loader), "loader must be oop"); |
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2865 assert(cl == NULL || is_instance(cl), "cl argument must be oop"); |
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2866 oop acl = loader; |
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2867 debug_only(jint loop_count = 0); |
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2868 // This loop taken verbatim from ClassLoader.java: |
|
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2869 do { |
|
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2870 acl = parent(acl); |
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2871 if (cl == acl) { |
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2872 return true; |
|
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2873 } |
|
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2874 assert(++loop_count > 0, "loop_count overflow"); |
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2875 } while (acl != NULL); |
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2876 return false; |
|
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2877 } |
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2878 |
| 0 | 2879 |
| 3938 | 2880 // For class loader classes, parallelCapable defined |
| 2881 // based on non-null field | |
| 2882 // Written to by java.lang.ClassLoader, vm only reads this field, doesn't set it | |
| 2883 bool java_lang_ClassLoader::parallelCapable(oop class_loader) { | |
| 2884 if (!JDK_Version::is_gte_jdk17x_version() | |
| 2885 || parallelCapable_offset == -1) { | |
| 2886 // Default for backward compatibility is false | |
| 2887 return false; | |
| 2888 } | |
| 2889 return (class_loader->obj_field(parallelCapable_offset) != NULL); | |
| 2890 } | |
| 2891 | |
| 0 | 2892 bool java_lang_ClassLoader::is_trusted_loader(oop loader) { |
| 2893 // Fix for 4474172; see evaluation for more details | |
| 2894 loader = non_reflection_class_loader(loader); | |
| 2895 | |
| 2896 oop cl = SystemDictionary::java_system_loader(); | |
| 2897 while(cl != NULL) { | |
| 2898 if (cl == loader) return true; | |
| 2899 cl = parent(cl); | |
| 2900 } | |
| 2901 return false; | |
| 2902 } | |
| 2903 | |
| 2904 oop java_lang_ClassLoader::non_reflection_class_loader(oop loader) { | |
| 2905 if (loader != NULL) { | |
| 2906 // See whether this is one of the class loaders associated with | |
| 2907 // the generated bytecodes for reflection, and if so, "magically" | |
| 2908 // delegate to its parent to prevent class loading from occurring | |
| 2909 // in places where applications using reflection didn't expect it. | |
|
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2910 Klass* delegating_cl_class = SystemDictionary::reflect_DelegatingClassLoader_klass(); |
| 0 | 2911 // This might be null in non-1.4 JDKs |
| 2912 if (delegating_cl_class != NULL && loader->is_a(delegating_cl_class)) { | |
| 2913 return parent(loader); | |
| 2914 } | |
| 2915 } | |
| 2916 return loader; | |
| 2917 } | |
| 2918 | |
| 2919 | |
| 2920 // Support for java_lang_System | |
| 2921 int java_lang_System::in_offset_in_bytes() { | |
|
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2922 return (InstanceMirrorKlass::offset_of_static_fields() + static_in_offset); |
| 0 | 2923 } |
| 2924 | |
| 2925 | |
| 2926 int java_lang_System::out_offset_in_bytes() { | |
|
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2927 return (InstanceMirrorKlass::offset_of_static_fields() + static_out_offset); |
| 0 | 2928 } |
| 2929 | |
| 2930 | |
| 2931 int java_lang_System::err_offset_in_bytes() { | |
|
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2932 return (InstanceMirrorKlass::offset_of_static_fields() + static_err_offset); |
| 0 | 2933 } |
| 2934 | |
| 2935 | |
| 2936 | |
| 3938 | 2937 int java_lang_Class::_klass_offset; |
| 2938 int java_lang_Class::_array_klass_offset; | |
| 2939 int java_lang_Class::_oop_size_offset; | |
| 2940 int java_lang_Class::_static_oop_field_count_offset; | |
|
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2941 GrowableArray<Klass*>* java_lang_Class::_fixup_mirror_list = NULL; |
| 0 | 2942 int java_lang_Throwable::backtrace_offset; |
| 2943 int java_lang_Throwable::detailMessage_offset; | |
| 2944 int java_lang_Throwable::cause_offset; | |
| 2945 int java_lang_Throwable::stackTrace_offset; | |
|
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2946 int java_lang_Throwable::static_unassigned_stacktrace_offset; |
| 0 | 2947 int java_lang_reflect_AccessibleObject::override_offset; |
| 2948 int java_lang_reflect_Method::clazz_offset; | |
| 2949 int java_lang_reflect_Method::name_offset; | |
| 2950 int java_lang_reflect_Method::returnType_offset; | |
| 2951 int java_lang_reflect_Method::parameterTypes_offset; | |
| 2952 int java_lang_reflect_Method::exceptionTypes_offset; | |
| 2953 int java_lang_reflect_Method::slot_offset; | |
| 2954 int java_lang_reflect_Method::modifiers_offset; | |
| 2955 int java_lang_reflect_Method::signature_offset; | |
| 2956 int java_lang_reflect_Method::annotations_offset; | |
| 2957 int java_lang_reflect_Method::parameter_annotations_offset; | |
| 2958 int java_lang_reflect_Method::annotation_default_offset; | |
|
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2959 int java_lang_reflect_Method::type_annotations_offset; |
| 0 | 2960 int java_lang_reflect_Constructor::clazz_offset; |
| 2961 int java_lang_reflect_Constructor::parameterTypes_offset; | |
| 2962 int java_lang_reflect_Constructor::exceptionTypes_offset; | |
| 2963 int java_lang_reflect_Constructor::slot_offset; | |
| 2964 int java_lang_reflect_Constructor::modifiers_offset; | |
| 2965 int java_lang_reflect_Constructor::signature_offset; | |
| 2966 int java_lang_reflect_Constructor::annotations_offset; | |
| 2967 int java_lang_reflect_Constructor::parameter_annotations_offset; | |
|
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2968 int java_lang_reflect_Constructor::type_annotations_offset; |
| 0 | 2969 int java_lang_reflect_Field::clazz_offset; |
| 2970 int java_lang_reflect_Field::name_offset; | |
| 2971 int java_lang_reflect_Field::type_offset; | |
| 2972 int java_lang_reflect_Field::slot_offset; | |
| 2973 int java_lang_reflect_Field::modifiers_offset; | |
| 2974 int java_lang_reflect_Field::signature_offset; | |
| 2975 int java_lang_reflect_Field::annotations_offset; | |
|
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2976 int java_lang_reflect_Field::type_annotations_offset; |
|
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2977 int java_lang_reflect_Parameter::name_offset; |
|
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2978 int java_lang_reflect_Parameter::modifiers_offset; |
|
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2979 int java_lang_reflect_Parameter::index_offset; |
|
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2980 int java_lang_reflect_Parameter::executable_offset; |
| 0 | 2981 int java_lang_boxing_object::value_offset; |
|
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2982 int java_lang_boxing_object::long_value_offset; |
| 0 | 2983 int java_lang_ref_Reference::referent_offset; |
| 2984 int java_lang_ref_Reference::queue_offset; | |
| 2985 int java_lang_ref_Reference::next_offset; | |
| 2986 int java_lang_ref_Reference::discovered_offset; | |
| 2987 int java_lang_ref_Reference::static_lock_offset; | |
| 2988 int java_lang_ref_Reference::static_pending_offset; | |
| 2989 int java_lang_ref_Reference::number_of_fake_oop_fields; | |
| 2990 int java_lang_ref_SoftReference::timestamp_offset; | |
| 2991 int java_lang_ref_SoftReference::static_clock_offset; | |
| 2992 int java_lang_ClassLoader::parent_offset; | |
| 2993 int java_lang_System::static_in_offset; | |
| 2994 int java_lang_System::static_out_offset; | |
| 2995 int java_lang_System::static_err_offset; | |
| 2996 int java_lang_StackTraceElement::declaringClass_offset; | |
| 2997 int java_lang_StackTraceElement::methodName_offset; | |
| 2998 int java_lang_StackTraceElement::fileName_offset; | |
| 2999 int java_lang_StackTraceElement::lineNumber_offset; | |
| 3000 int java_lang_AssertionStatusDirectives::classes_offset; | |
| 3001 int java_lang_AssertionStatusDirectives::classEnabled_offset; | |
| 3002 int java_lang_AssertionStatusDirectives::packages_offset; | |
| 3003 int java_lang_AssertionStatusDirectives::packageEnabled_offset; | |
| 3004 int java_lang_AssertionStatusDirectives::deflt_offset; | |
| 3005 int java_nio_Buffer::_limit_offset; | |
| 3006 int java_util_concurrent_locks_AbstractOwnableSynchronizer::_owner_offset = 0; | |
|
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3007 int sun_reflect_ConstantPool::_oop_offset; |
| 0 | 3008 int sun_reflect_UnsafeStaticFieldAccessorImpl::_base_offset; |
| 3009 | |
| 3010 | |
| 3011 // Support for java_lang_StackTraceElement | |
| 3012 | |
| 3013 void java_lang_StackTraceElement::set_fileName(oop element, oop value) { | |
| 3014 element->obj_field_put(fileName_offset, value); | |
| 3015 } | |
| 3016 | |
| 3017 void java_lang_StackTraceElement::set_declaringClass(oop element, oop value) { | |
| 3018 element->obj_field_put(declaringClass_offset, value); | |
| 3019 } | |
| 3020 | |
| 3021 void java_lang_StackTraceElement::set_methodName(oop element, oop value) { | |
| 3022 element->obj_field_put(methodName_offset, value); | |
| 3023 } | |
| 3024 | |
| 3025 void java_lang_StackTraceElement::set_lineNumber(oop element, int value) { | |
| 3026 element->int_field_put(lineNumber_offset, value); | |
| 3027 } | |
| 3028 | |
| 3029 | |
| 3030 // Support for java Assertions - java_lang_AssertionStatusDirectives. | |
| 3031 | |
| 3032 void java_lang_AssertionStatusDirectives::set_classes(oop o, oop val) { | |
| 3033 o->obj_field_put(classes_offset, val); | |
| 3034 } | |
| 3035 | |
| 3036 void java_lang_AssertionStatusDirectives::set_classEnabled(oop o, oop val) { | |
| 3037 o->obj_field_put(classEnabled_offset, val); | |
| 3038 } | |
| 3039 | |
| 3040 void java_lang_AssertionStatusDirectives::set_packages(oop o, oop val) { | |
| 3041 o->obj_field_put(packages_offset, val); | |
| 3042 } | |
| 3043 | |
| 3044 void java_lang_AssertionStatusDirectives::set_packageEnabled(oop o, oop val) { | |
| 3045 o->obj_field_put(packageEnabled_offset, val); | |
| 3046 } | |
| 3047 | |
| 3048 void java_lang_AssertionStatusDirectives::set_deflt(oop o, bool val) { | |
| 3049 o->bool_field_put(deflt_offset, val); | |
| 3050 } | |
| 3051 | |
| 3052 | |
| 3053 // Support for intrinsification of java.nio.Buffer.checkIndex | |
| 3054 int java_nio_Buffer::limit_offset() { | |
| 3055 return _limit_offset; | |
| 3056 } | |
| 3057 | |
| 3058 | |
| 3059 void java_nio_Buffer::compute_offsets() { | |
|
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3060 Klass* k = SystemDictionary::nio_Buffer_klass(); |
|
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3061 assert(k != NULL, "must be loaded in 1.4+"); |
|
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|
3062 compute_offset(_limit_offset, k, vmSymbols::limit_name(), vmSymbols::int_signature()); |
| 0 | 3063 } |
| 3064 | |
| 3065 void java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(TRAPS) { | |
| 3066 if (_owner_offset != 0) return; | |
| 3067 | |
| 3068 assert(JDK_Version::is_gte_jdk16x_version(), "Must be JDK 1.6 or later"); | |
| 3069 SystemDictionary::load_abstract_ownable_synchronizer_klass(CHECK); | |
|
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3070 Klass* k = SystemDictionary::abstract_ownable_synchronizer_klass(); |
|
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|
3071 compute_offset(_owner_offset, k, |
| 0 | 3072 vmSymbols::exclusive_owner_thread_name(), vmSymbols::thread_signature()); |
| 3073 } | |
| 3074 | |
| 3075 oop java_util_concurrent_locks_AbstractOwnableSynchronizer::get_owner_threadObj(oop obj) { | |
| 3076 assert(_owner_offset != 0, "Must be initialized"); | |
| 3077 return obj->obj_field(_owner_offset); | |
| 3078 } | |
| 3079 | |
| 3080 // Compute hard-coded offsets | |
| 3081 // Invoked before SystemDictionary::initialize, so pre-loaded classes | |
| 3082 // are not available to determine the offset_of_static_fields. | |
| 3083 void JavaClasses::compute_hard_coded_offsets() { | |
|
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|
3084 const int x = heapOopSize; |
|
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|
3085 const int header = instanceOopDesc::base_offset_in_bytes(); |
| 0 | 3086 |
| 3087 // Throwable Class | |
| 3088 java_lang_Throwable::backtrace_offset = java_lang_Throwable::hc_backtrace_offset * x + header; | |
| 3089 java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header; | |
| 3090 java_lang_Throwable::cause_offset = java_lang_Throwable::hc_cause_offset * x + header; | |
| 3091 java_lang_Throwable::stackTrace_offset = java_lang_Throwable::hc_stackTrace_offset * x + header; | |
|
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3092 java_lang_Throwable::static_unassigned_stacktrace_offset = java_lang_Throwable::hc_static_unassigned_stacktrace_offset * x; |
| 0 | 3093 |
| 3094 // java_lang_boxing_object | |
|
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3095 java_lang_boxing_object::value_offset = java_lang_boxing_object::hc_value_offset + header; |
|
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3096 java_lang_boxing_object::long_value_offset = align_size_up((java_lang_boxing_object::hc_value_offset + header), BytesPerLong); |
| 0 | 3097 |
| 3098 // java_lang_ref_Reference: | |
| 3099 java_lang_ref_Reference::referent_offset = java_lang_ref_Reference::hc_referent_offset * x + header; | |
| 3100 java_lang_ref_Reference::queue_offset = java_lang_ref_Reference::hc_queue_offset * x + header; | |
| 3101 java_lang_ref_Reference::next_offset = java_lang_ref_Reference::hc_next_offset * x + header; | |
| 3102 java_lang_ref_Reference::discovered_offset = java_lang_ref_Reference::hc_discovered_offset * x + header; | |
| 3103 java_lang_ref_Reference::static_lock_offset = java_lang_ref_Reference::hc_static_lock_offset * x; | |
| 3104 java_lang_ref_Reference::static_pending_offset = java_lang_ref_Reference::hc_static_pending_offset * x; | |
| 3105 // Artificial fields for java_lang_ref_Reference | |
| 3106 // The first field is for the discovered field added in 1.4 | |
| 3107 java_lang_ref_Reference::number_of_fake_oop_fields = 1; | |
| 3108 | |
| 3109 // java_lang_ref_SoftReference Class | |
|
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3110 java_lang_ref_SoftReference::timestamp_offset = align_size_up((java_lang_ref_SoftReference::hc_timestamp_offset * x + header), BytesPerLong); |
| 0 | 3111 // Don't multiply static fields because they are always in wordSize units |
| 3112 java_lang_ref_SoftReference::static_clock_offset = java_lang_ref_SoftReference::hc_static_clock_offset * x; | |
| 3113 | |
| 3114 // java_lang_ClassLoader | |
| 3115 java_lang_ClassLoader::parent_offset = java_lang_ClassLoader::hc_parent_offset * x + header; | |
| 3116 | |
| 3117 // java_lang_System | |
| 3118 java_lang_System::static_in_offset = java_lang_System::hc_static_in_offset * x; | |
| 3119 java_lang_System::static_out_offset = java_lang_System::hc_static_out_offset * x; | |
| 3120 java_lang_System::static_err_offset = java_lang_System::hc_static_err_offset * x; | |
| 3121 | |
| 3122 // java_lang_StackTraceElement | |
| 3123 java_lang_StackTraceElement::declaringClass_offset = java_lang_StackTraceElement::hc_declaringClass_offset * x + header; | |
| 3124 java_lang_StackTraceElement::methodName_offset = java_lang_StackTraceElement::hc_methodName_offset * x + header; | |
| 3125 java_lang_StackTraceElement::fileName_offset = java_lang_StackTraceElement::hc_fileName_offset * x + header; | |
| 3126 java_lang_StackTraceElement::lineNumber_offset = java_lang_StackTraceElement::hc_lineNumber_offset * x + header; | |
| 3127 java_lang_AssertionStatusDirectives::classes_offset = java_lang_AssertionStatusDirectives::hc_classes_offset * x + header; | |
| 3128 java_lang_AssertionStatusDirectives::classEnabled_offset = java_lang_AssertionStatusDirectives::hc_classEnabled_offset * x + header; | |
| 3129 java_lang_AssertionStatusDirectives::packages_offset = java_lang_AssertionStatusDirectives::hc_packages_offset * x + header; | |
| 3130 java_lang_AssertionStatusDirectives::packageEnabled_offset = java_lang_AssertionStatusDirectives::hc_packageEnabled_offset * x + header; | |
| 3131 java_lang_AssertionStatusDirectives::deflt_offset = java_lang_AssertionStatusDirectives::hc_deflt_offset * x + header; | |
| 3132 | |
| 3133 } | |
| 3134 | |
| 3135 | |
| 3136 // Compute non-hard-coded field offsets of all the classes in this file | |
| 3137 void JavaClasses::compute_offsets() { | |
| 3938 | 3138 // java_lang_Class::compute_offsets was called earlier in bootstrap |
| 3139 java_lang_ClassLoader::compute_offsets(); | |
| 0 | 3140 java_lang_Thread::compute_offsets(); |
| 3141 java_lang_ThreadGroup::compute_offsets(); | |
|
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3142 if (EnableInvokeDynamic) { |
|
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|
3143 java_lang_invoke_MethodHandle::compute_offsets(); |
|
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|
3144 java_lang_invoke_MemberName::compute_offsets(); |
|
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3145 java_lang_invoke_LambdaForm::compute_offsets(); |
|
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3146 java_lang_invoke_MethodType::compute_offsets(); |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
3147 java_lang_invoke_CallSite::compute_offsets(); |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
3148 } |
| 0 | 3149 java_security_AccessControlContext::compute_offsets(); |
| 3150 // Initialize reflection classes. The layouts of these classes | |
| 3151 // changed with the new reflection implementation in JDK 1.4, and | |
| 3152 // since the Universe doesn't know what JDK version it is until this | |
| 3153 // point we defer computation of these offsets until now. | |
| 3154 java_lang_reflect_AccessibleObject::compute_offsets(); | |
| 3155 java_lang_reflect_Method::compute_offsets(); | |
| 3156 java_lang_reflect_Constructor::compute_offsets(); | |
| 3157 java_lang_reflect_Field::compute_offsets(); | |
| 3158 if (JDK_Version::is_gte_jdk14x_version()) { | |
| 3159 java_nio_Buffer::compute_offsets(); | |
| 3160 } | |
| 3161 if (JDK_Version::is_gte_jdk15x_version()) { | |
| 3162 sun_reflect_ConstantPool::compute_offsets(); | |
| 3163 sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets(); | |
| 3164 } | |
|
7462
ade95d680b42
8004728: Add hotspot support for parameter reflection
coleenp
parents:
7458
diff
changeset
|
3165 if (JDK_Version::is_jdk18x_version()) |
|
ade95d680b42
8004728: Add hotspot support for parameter reflection
coleenp
parents:
7458
diff
changeset
|
3166 java_lang_reflect_Parameter::compute_offsets(); |
| 710 | 3167 |
| 3168 // generated interpreter code wants to know about the offsets we just computed: | |
| 3169 AbstractAssembler::update_delayed_values(); | |
| 0 | 3170 } |
| 3171 | |
| 3172 #ifndef PRODUCT | |
| 3173 | |
| 3174 // These functions exist to assert the validity of hard-coded field offsets to guard | |
| 3175 // against changes in the class files | |
| 3176 | |
| 3177 bool JavaClasses::check_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
| 3178 EXCEPTION_MARK; | |
| 3179 fieldDescriptor fd; | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3180 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
3181 Klass* k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
| 0 | 3182 instanceKlassHandle h_klass (THREAD, k); |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3183 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3184 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3185 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
| 0 | 3186 tty->print_cr("Nonstatic field %s.%s not found", klass_name, field_name); |
| 3187 return false; | |
| 3188 } | |
| 3189 if (fd.is_static()) { | |
| 3190 tty->print_cr("Nonstatic field %s.%s appears to be static", klass_name, field_name); | |
| 3191 return false; | |
| 3192 } | |
| 3193 if (fd.offset() == hardcoded_offset ) { | |
| 3194 return true; | |
| 3195 } else { | |
| 3196 tty->print_cr("Offset of nonstatic field %s.%s is hardcoded as %d but should really be %d.", | |
| 3197 klass_name, field_name, hardcoded_offset, fd.offset()); | |
| 3198 return false; | |
| 3199 } | |
| 3200 } | |
| 3201 | |
| 3202 | |
| 3203 bool JavaClasses::check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
| 3204 EXCEPTION_MARK; | |
| 3205 fieldDescriptor fd; | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3206 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
3207 Klass* k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
| 0 | 3208 instanceKlassHandle h_klass (THREAD, k); |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3209 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3210 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3211 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
| 0 | 3212 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
| 3213 return false; | |
| 3214 } | |
| 3215 if (!fd.is_static()) { | |
| 3216 tty->print_cr("Static field %s.%s appears to be nonstatic", klass_name, field_name); | |
| 3217 return false; | |
| 3218 } | |
|
6735
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
6725
diff
changeset
|
3219 if (fd.offset() == hardcoded_offset + InstanceMirrorKlass::offset_of_static_fields()) { |
| 0 | 3220 return true; |
| 3221 } else { | |
|
6735
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
6725
diff
changeset
|
3222 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 | 3223 return false; |
| 3224 } | |
| 3225 } | |
| 3226 | |
| 3227 | |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3228 bool JavaClasses::check_constant(const char *klass_name, int hardcoded_constant, const char *field_name, const char* field_sig) { |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3229 EXCEPTION_MARK; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3230 fieldDescriptor fd; |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3231 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6267
diff
changeset
|
3232 Klass* k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3233 instanceKlassHandle h_klass (THREAD, k); |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3234 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3235 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3236 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3237 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3238 return false; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3239 } |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3240 if (!fd.is_static() || !fd.has_initial_value()) { |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3241 tty->print_cr("Static field %s.%s appears to be non-constant", klass_name, field_name); |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3242 return false; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3243 } |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3244 if (!fd.initial_value_tag().is_int()) { |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3245 tty->print_cr("Static field %s.%s is not an int", klass_name, field_name); |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3246 return false; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3247 } |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3248 jint field_value = fd.int_initial_value(); |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3249 if (field_value == hardcoded_constant) { |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3250 return true; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3251 } else { |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3252 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); |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3253 return false; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3254 } |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3255 } |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3256 |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3257 |
| 0 | 3258 // Check the hard-coded field offsets of all the classes in this file |
| 3259 | |
| 3260 void JavaClasses::check_offsets() { | |
| 3261 bool valid = true; | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
3262 HandleMark hm; |
| 0 | 3263 |
| 3264 #define CHECK_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ | |
| 3265 valid &= check_offset(klass_name, cpp_klass_name :: field_name ## _offset, #field_name, field_sig) | |
| 3266 | |
|
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
3267 #define CHECK_LONG_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
|
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
3268 valid &= check_offset(klass_name, cpp_klass_name :: long_ ## field_name ## _offset, #field_name, field_sig) |
|
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
3269 |
| 0 | 3270 #define CHECK_STATIC_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
| 3271 valid &= check_static_offset(klass_name, cpp_klass_name :: static_ ## field_name ## _offset, #field_name, field_sig) | |
| 3272 | |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3273 #define CHECK_CONSTANT(klass_name, cpp_klass_name, field_name, field_sig) \ |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3274 valid &= check_constant(klass_name, cpp_klass_name :: field_name, #field_name, field_sig) |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3275 |
| 0 | 3276 // java.lang.String |
| 3277 | |
| 3278 CHECK_OFFSET("java/lang/String", java_lang_String, value, "[C"); | |
| 6057 | 3279 if (java_lang_String::has_offset_field()) { |
| 3280 CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I"); | |
| 3281 CHECK_OFFSET("java/lang/String", java_lang_String, count, "I"); | |
| 3282 } | |
| 3283 if (java_lang_String::has_hash_field()) { | |
| 3284 CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I"); | |
| 3285 } | |
| 0 | 3286 |
| 3287 // java.lang.Class | |
| 3288 | |
| 3289 // Fake fields | |
| 3290 // CHECK_OFFSET("java/lang/Class", java_lang_Class, klass); // %%% this needs to be checked | |
| 3291 // CHECK_OFFSET("java/lang/Class", java_lang_Class, array_klass); // %%% this needs to be checked | |
| 3292 | |
| 3293 // java.lang.Throwable | |
| 3294 | |
| 3295 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, backtrace, "Ljava/lang/Object;"); | |
| 3296 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, detailMessage, "Ljava/lang/String;"); | |
| 3297 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, cause, "Ljava/lang/Throwable;"); | |
| 3298 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, stackTrace, "[Ljava/lang/StackTraceElement;"); | |
| 3299 | |
| 3300 // Boxed primitive objects (java_lang_boxing_object) | |
| 3301 | |
| 3302 CHECK_OFFSET("java/lang/Boolean", java_lang_boxing_object, value, "Z"); | |
| 3303 CHECK_OFFSET("java/lang/Character", java_lang_boxing_object, value, "C"); | |
| 3304 CHECK_OFFSET("java/lang/Float", java_lang_boxing_object, value, "F"); | |
|
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
3305 CHECK_LONG_OFFSET("java/lang/Double", java_lang_boxing_object, value, "D"); |
| 0 | 3306 CHECK_OFFSET("java/lang/Byte", java_lang_boxing_object, value, "B"); |
| 3307 CHECK_OFFSET("java/lang/Short", java_lang_boxing_object, value, "S"); | |
| 3308 CHECK_OFFSET("java/lang/Integer", java_lang_boxing_object, value, "I"); | |
|
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
3309 CHECK_LONG_OFFSET("java/lang/Long", java_lang_boxing_object, value, "J"); |
| 0 | 3310 |
| 3311 // java.lang.ClassLoader | |
| 3312 | |
| 3313 CHECK_OFFSET("java/lang/ClassLoader", java_lang_ClassLoader, parent, "Ljava/lang/ClassLoader;"); | |
| 3314 | |
| 3315 // java.lang.System | |
| 3316 | |
| 3317 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, in, "Ljava/io/InputStream;"); | |
| 3318 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, out, "Ljava/io/PrintStream;"); | |
| 3319 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, err, "Ljava/io/PrintStream;"); | |
| 3320 | |
| 3321 // java.lang.StackTraceElement | |
| 3322 | |
| 3323 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClass, "Ljava/lang/String;"); | |
| 3324 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, methodName, "Ljava/lang/String;"); | |
| 3325 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, fileName, "Ljava/lang/String;"); | |
| 3326 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, lineNumber, "I"); | |
| 3327 | |
| 3328 // java.lang.ref.Reference | |
| 3329 | |
| 3330 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, referent, "Ljava/lang/Object;"); | |
| 3331 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, queue, "Ljava/lang/ref/ReferenceQueue;"); | |
| 3332 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, next, "Ljava/lang/ref/Reference;"); | |
| 3333 // Fake field | |
| 3334 //CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, discovered, "Ljava/lang/ref/Reference;"); | |
| 3335 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, lock, "Ljava/lang/ref/Reference$Lock;"); | |
| 3336 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, pending, "Ljava/lang/ref/Reference;"); | |
| 3337 | |
| 3338 // java.lang.ref.SoftReference | |
| 3339 | |
| 3340 CHECK_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, timestamp, "J"); | |
| 3341 CHECK_STATIC_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, clock, "J"); | |
| 3342 | |
| 3343 // java.lang.AssertionStatusDirectives | |
| 3344 // | |
| 3345 // The CheckAssertionStatusDirectives boolean can be removed from here and | |
| 3346 // globals.hpp after the AssertionStatusDirectives class has been integrated | |
| 3347 // into merlin "for some time." Without it, the vm will fail with early | |
| 3348 // merlin builds. | |
| 3349 | |
| 3350 if (CheckAssertionStatusDirectives && JDK_Version::is_gte_jdk14x_version()) { | |
| 3351 const char* nm = "java/lang/AssertionStatusDirectives"; | |
| 3352 const char* sig = "[Ljava/lang/String;"; | |
| 3353 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classes, sig); | |
| 3354 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classEnabled, "[Z"); | |
| 3355 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packages, sig); | |
| 3356 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packageEnabled, "[Z"); | |
| 3357 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, deflt, "Z"); | |
| 3358 } | |
| 3359 | |
| 3360 if (!valid) vm_exit_during_initialization("Hard-coded field offset verification failed"); | |
| 3361 } | |
| 3362 | |
| 3363 #endif // PRODUCT | |
| 3364 | |
| 3938 | 3365 int InjectedField::compute_offset() { |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
3366 Klass* klass_oop = klass(); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
3367 for (AllFieldStream fs(InstanceKlass::cast(klass_oop)); !fs.done(); fs.next()) { |
| 3938 | 3368 if (!may_be_java && !fs.access_flags().is_internal()) { |
| 3369 // Only look at injected fields | |
| 3370 continue; | |
| 3371 } | |
| 3372 if (fs.name() == name() && fs.signature() == signature()) { | |
| 3373 return fs.offset(); | |
| 3374 } | |
| 3375 } | |
| 3376 ResourceMark rm; | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
3377 tty->print_cr("Invalid layout of %s at %s/%s%s", InstanceKlass::cast(klass_oop)->external_name(), name()->as_C_string(), signature()->as_C_string(), may_be_java ? " (may_be_java)" : ""); |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
3378 #ifndef PRODUCT |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
3379 klass_oop->print(); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
3380 tty->print_cr("all fields:"); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
3381 for (AllFieldStream fs(InstanceKlass::cast(klass_oop)); !fs.done(); fs.next()) { |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
3382 tty->print_cr(" name: %s, sig: %s, flags: %08x", fs.name()->as_C_string(), fs.signature()->as_C_string(), fs.access_flags().as_int()); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
3383 } |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
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3384 #endif //PRODUCT |
| 3938 | 3385 fatal("Invalid layout of preloaded class"); |
| 3386 return -1; | |
| 3387 } | |
| 3388 | |
| 0 | 3389 void javaClasses_init() { |
| 3390 JavaClasses::compute_offsets(); | |
| 3391 JavaClasses::check_offsets(); | |
| 3392 FilteredFieldsMap::initialize(); // must be done after computing offsets. | |
| 3393 } |