Mercurial > hg > truffle
annotate src/share/vm/classfile/javaClasses.cpp @ 6985:80e866b1d053
Merge
| author | coleenp |
|---|---|
| date | Fri, 16 Nov 2012 09:19:12 -0500 |
| parents | bd7a7ce2e264 070d523b96a7 |
| children | 2cb439954abf f34d701e952e |
| 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" | |
| 50 #include "runtime/vframe.hpp" | |
| 51 #include "utilities/preserveException.hpp" | |
| 52 #ifdef TARGET_OS_FAMILY_linux | |
| 53 # include "thread_linux.inline.hpp" | |
| 54 #endif | |
| 55 #ifdef TARGET_OS_FAMILY_solaris | |
| 56 # include "thread_solaris.inline.hpp" | |
| 57 #endif | |
| 58 #ifdef TARGET_OS_FAMILY_windows | |
| 59 # include "thread_windows.inline.hpp" | |
| 60 #endif | |
| 3960 | 61 #ifdef TARGET_OS_FAMILY_bsd |
| 62 # include "thread_bsd.inline.hpp" | |
| 63 #endif | |
| 0 | 64 |
| 3938 | 65 #define INJECTED_FIELD_COMPUTE_OFFSET(klass, name, signature, may_be_java) \ |
| 66 klass::_##name##_offset = JavaClasses::compute_injected_offset(JavaClasses::klass##_##name##_enum); | |
| 67 | |
| 68 #define DECLARE_INJECTED_FIELD(klass, name, signature, may_be_java) \ | |
| 69 { SystemDictionary::WK_KLASS_ENUM_NAME(klass), vmSymbols::VM_SYMBOL_ENUM_NAME(name##_name), vmSymbols::VM_SYMBOL_ENUM_NAME(signature), may_be_java }, | |
| 70 | |
| 71 InjectedField JavaClasses::_injected_fields[] = { | |
| 72 ALL_INJECTED_FIELDS(DECLARE_INJECTED_FIELD) | |
| 73 }; | |
| 74 | |
| 75 int JavaClasses::compute_injected_offset(InjectedFieldID id) { | |
| 76 return _injected_fields[id].compute_offset(); | |
| 77 } | |
| 78 | |
| 79 | |
| 80 InjectedField* JavaClasses::get_injected(Symbol* class_name, int* field_count) { | |
| 81 *field_count = 0; | |
| 82 | |
| 83 vmSymbols::SID sid = vmSymbols::find_sid(class_name); | |
| 84 if (sid == vmSymbols::NO_SID) { | |
| 85 // Only well known classes can inject fields | |
| 86 return NULL; | |
| 87 } | |
| 88 | |
| 89 int count = 0; | |
| 90 int start = -1; | |
| 91 | |
| 92 #define LOOKUP_INJECTED_FIELD(klass, name, signature, may_be_java) \ | |
| 93 if (sid == vmSymbols::VM_SYMBOL_ENUM_NAME(klass)) { \ | |
| 94 count++; \ | |
| 95 if (start == -1) start = klass##_##name##_enum; \ | |
| 96 } | |
| 97 ALL_INJECTED_FIELDS(LOOKUP_INJECTED_FIELD); | |
| 98 #undef LOOKUP_INJECTED_FIELD | |
| 99 | |
| 100 if (start != -1) { | |
| 101 *field_count = count; | |
| 102 return _injected_fields + start; | |
| 103 } | |
| 104 return NULL; | |
| 105 } | |
| 106 | |
| 107 | |
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108 static bool find_field(InstanceKlass* ik, |
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109 Symbol* name_symbol, Symbol* signature_symbol, |
| 710 | 110 fieldDescriptor* fd, |
| 111 bool allow_super = false) { | |
| 112 if (allow_super) | |
| 113 return ik->find_field(name_symbol, signature_symbol, fd) != NULL; | |
| 114 else | |
| 115 return ik->find_local_field(name_symbol, signature_symbol, fd); | |
| 116 } | |
| 117 | |
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118 // Helpful routine for computing field offsets at run time rather than hardcoding them |
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119 static void |
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120 compute_offset(int &dest_offset, |
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121 Klass* klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
| 710 | 122 bool allow_super = false) { |
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123 fieldDescriptor fd; |
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124 InstanceKlass* ik = InstanceKlass::cast(klass_oop); |
| 710 | 125 if (!find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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126 ResourceMark rm; |
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127 tty->print_cr("Invalid layout of %s at %s", ik->external_name(), name_symbol->as_C_string()); |
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128 #ifndef PRODUCT |
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129 klass_oop->print(); |
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130 tty->print_cr("all fields:"); |
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131 for (AllFieldStream fs(InstanceKlass::cast(klass_oop)); !fs.done(); fs.next()) { |
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132 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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133 } |
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134 #endif //PRODUCT |
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135 fatal("Invalid layout of preloaded class"); |
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136 } |
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137 dest_offset = fd.offset(); |
| 0 | 138 } |
| 139 | |
| 140 // Same as above but for "optional" offsets that might not be present in certain JDK versions | |
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141 static void |
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142 compute_optional_offset(int& dest_offset, |
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143 Klass* klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
| 710 | 144 bool allow_super = false) { |
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145 fieldDescriptor fd; |
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146 InstanceKlass* ik = InstanceKlass::cast(klass_oop); |
| 710 | 147 if (find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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148 dest_offset = fd.offset(); |
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149 } |
| 0 | 150 } |
| 151 | |
| 710 | 152 |
| 6057 | 153 int java_lang_String::value_offset = 0; |
| 154 int java_lang_String::offset_offset = 0; | |
| 155 int java_lang_String::count_offset = 0; | |
| 156 int java_lang_String::hash_offset = 0; | |
| 157 | |
| 158 bool java_lang_String::initialized = false; | |
| 159 | |
| 160 void java_lang_String::compute_offsets() { | |
| 161 assert(!initialized, "offsets should be initialized only once"); | |
| 162 | |
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163 Klass* k = SystemDictionary::String_klass(); |
| 6057 | 164 compute_offset(value_offset, k, vmSymbols::value_name(), vmSymbols::char_array_signature()); |
| 165 compute_optional_offset(offset_offset, k, vmSymbols::offset_name(), vmSymbols::int_signature()); | |
| 166 compute_optional_offset(count_offset, k, vmSymbols::count_name(), vmSymbols::int_signature()); | |
| 167 compute_optional_offset(hash_offset, k, vmSymbols::hash_name(), vmSymbols::int_signature()); | |
| 168 | |
| 169 initialized = true; | |
| 170 } | |
| 171 | |
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172 Handle java_lang_String::basic_create(int length, TRAPS) { |
| 6057 | 173 assert(initialized, "Must be initialized"); |
| 0 | 174 // Create the String object first, so there's a chance that the String |
| 175 // and the char array it points to end up in the same cache line. | |
| 176 oop obj; | |
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177 obj = InstanceKlass::cast(SystemDictionary::String_klass())->allocate_instance(CHECK_NH); |
| 0 | 178 |
| 179 // Create the char array. The String object must be handlized here | |
| 180 // because GC can happen as a result of the allocation attempt. | |
| 181 Handle h_obj(THREAD, obj); | |
| 182 typeArrayOop buffer; | |
| 183 buffer = oopFactory::new_charArray(length, CHECK_NH); | |
| 184 | |
| 185 // Point the String at the char array | |
| 186 obj = h_obj(); | |
| 187 set_value(obj, buffer); | |
| 188 // No need to zero the offset, allocation zero'ed the entire String object | |
| 189 assert(offset(obj) == 0, "initial String offset should be zero"); | |
| 190 //set_offset(obj, 0); | |
| 191 set_count(obj, length); | |
| 192 | |
| 193 return h_obj; | |
| 194 } | |
| 195 | |
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196 Handle java_lang_String::create_from_unicode(jchar* unicode, int length, TRAPS) { |
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197 Handle h_obj = basic_create(length, CHECK_NH); |
| 0 | 198 typeArrayOop buffer = value(h_obj()); |
| 199 for (int index = 0; index < length; index++) { | |
| 200 buffer->char_at_put(index, unicode[index]); | |
| 201 } | |
| 202 return h_obj; | |
| 203 } | |
| 204 | |
| 205 oop java_lang_String::create_oop_from_unicode(jchar* unicode, int length, TRAPS) { | |
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206 Handle h_obj = create_from_unicode(unicode, length, CHECK_0); |
| 0 | 207 return h_obj(); |
| 208 } | |
| 209 | |
| 210 Handle java_lang_String::create_from_str(const char* utf8_str, TRAPS) { | |
| 211 if (utf8_str == NULL) { | |
| 212 return Handle(); | |
| 213 } | |
| 214 int length = UTF8::unicode_length(utf8_str); | |
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215 Handle h_obj = basic_create(length, CHECK_NH); |
| 0 | 216 if (length > 0) { |
| 217 UTF8::convert_to_unicode(utf8_str, value(h_obj())->char_at_addr(0), length); | |
| 218 } | |
| 219 return h_obj; | |
| 220 } | |
| 221 | |
| 222 oop java_lang_String::create_oop_from_str(const char* utf8_str, TRAPS) { | |
| 223 Handle h_obj = create_from_str(utf8_str, CHECK_0); | |
| 224 return h_obj(); | |
| 225 } | |
| 226 | |
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227 Handle java_lang_String::create_from_symbol(Symbol* symbol, TRAPS) { |
| 0 | 228 int length = UTF8::unicode_length((char*)symbol->bytes(), symbol->utf8_length()); |
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229 Handle h_obj = basic_create(length, CHECK_NH); |
| 0 | 230 if (length > 0) { |
| 231 UTF8::convert_to_unicode((char*)symbol->bytes(), value(h_obj())->char_at_addr(0), length); | |
| 232 } | |
| 233 return h_obj; | |
| 234 } | |
| 235 | |
| 236 // Converts a C string to a Java String based on current encoding | |
| 237 Handle java_lang_String::create_from_platform_dependent_str(const char* str, TRAPS) { | |
| 238 assert(str != NULL, "bad arguments"); | |
| 239 | |
| 240 typedef jstring (*to_java_string_fn_t)(JNIEnv*, const char *); | |
| 241 static to_java_string_fn_t _to_java_string_fn = NULL; | |
| 242 | |
| 243 if (_to_java_string_fn == NULL) { | |
| 244 void *lib_handle = os::native_java_library(); | |
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245 _to_java_string_fn = CAST_TO_FN_PTR(to_java_string_fn_t, os::dll_lookup(lib_handle, "NewStringPlatform")); |
| 0 | 246 if (_to_java_string_fn == NULL) { |
| 247 fatal("NewStringPlatform missing"); | |
| 248 } | |
| 249 } | |
| 250 | |
| 251 jstring js = NULL; | |
| 252 { JavaThread* thread = (JavaThread*)THREAD; | |
| 253 assert(thread->is_Java_thread(), "must be java thread"); | |
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254 HandleMark hm(thread); |
| 0 | 255 ThreadToNativeFromVM ttn(thread); |
| 256 js = (_to_java_string_fn)(thread->jni_environment(), str); | |
| 257 } | |
| 258 return Handle(THREAD, JNIHandles::resolve(js)); | |
| 259 } | |
| 260 | |
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261 // Converts a Java String to a native C string that can be used for |
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262 // native OS calls. |
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263 char* java_lang_String::as_platform_dependent_str(Handle java_string, TRAPS) { |
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264 |
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265 typedef char* (*to_platform_string_fn_t)(JNIEnv*, jstring, bool*); |
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266 static to_platform_string_fn_t _to_platform_string_fn = NULL; |
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267 |
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268 if (_to_platform_string_fn == NULL) { |
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269 void *lib_handle = os::native_java_library(); |
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270 _to_platform_string_fn = CAST_TO_FN_PTR(to_platform_string_fn_t, os::dll_lookup(lib_handle, "GetStringPlatformChars")); |
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271 if (_to_platform_string_fn == NULL) { |
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272 fatal("GetStringPlatformChars missing"); |
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273 } |
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274 } |
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275 |
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276 char *native_platform_string; |
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277 { JavaThread* thread = (JavaThread*)THREAD; |
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278 assert(thread->is_Java_thread(), "must be java thread"); |
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279 JNIEnv *env = thread->jni_environment(); |
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280 jstring js = (jstring) JNIHandles::make_local(env, java_string()); |
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281 bool is_copy; |
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282 HandleMark hm(thread); |
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283 ThreadToNativeFromVM ttn(thread); |
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284 native_platform_string = (_to_platform_string_fn)(env, js, &is_copy); |
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285 assert(is_copy == JNI_TRUE, "is_copy value changed"); |
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286 JNIHandles::destroy_local(js); |
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287 } |
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288 return native_platform_string; |
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289 } |
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290 |
| 0 | 291 Handle java_lang_String::char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS) { |
| 292 oop obj = java_string(); | |
| 293 // Typical usage is to convert all '/' to '.' in string. | |
| 294 typeArrayOop value = java_lang_String::value(obj); | |
| 295 int offset = java_lang_String::offset(obj); | |
| 296 int length = java_lang_String::length(obj); | |
| 297 | |
| 298 // First check if any from_char exist | |
| 299 int index; // Declared outside, used later | |
| 300 for (index = 0; index < length; index++) { | |
| 301 if (value->char_at(index + offset) == from_char) { | |
| 302 break; | |
| 303 } | |
| 304 } | |
| 305 if (index == length) { | |
| 306 // No from_char, so do not copy. | |
| 307 return java_string; | |
| 308 } | |
| 309 | |
| 310 // Create new UNICODE buffer. Must handlize value because GC | |
| 311 // may happen during String and char array creation. | |
| 312 typeArrayHandle h_value(THREAD, value); | |
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313 Handle string = basic_create(length, CHECK_NH); |
| 0 | 314 |
| 315 typeArrayOop from_buffer = h_value(); | |
| 316 typeArrayOop to_buffer = java_lang_String::value(string()); | |
| 317 | |
| 318 // Copy contents | |
| 319 for (index = 0; index < length; index++) { | |
| 320 jchar c = from_buffer->char_at(index + offset); | |
| 321 if (c == from_char) { | |
| 322 c = to_char; | |
| 323 } | |
| 324 to_buffer->char_at_put(index, c); | |
| 325 } | |
| 326 return string; | |
| 327 } | |
| 328 | |
| 329 jchar* java_lang_String::as_unicode_string(oop java_string, int& length) { | |
| 330 typeArrayOop value = java_lang_String::value(java_string); | |
| 331 int offset = java_lang_String::offset(java_string); | |
| 332 length = java_lang_String::length(java_string); | |
| 333 | |
| 334 jchar* result = NEW_RESOURCE_ARRAY(jchar, length); | |
| 335 for (int index = 0; index < length; index++) { | |
| 336 result[index] = value->char_at(index + offset); | |
| 337 } | |
| 338 return result; | |
| 339 } | |
| 340 | |
| 6162 | 341 unsigned int java_lang_String::to_hash(oop java_string) { |
| 342 int length = java_lang_String::length(java_string); | |
| 343 // Zero length string will hash to zero with String.toHash() function. | |
| 344 if (length == 0) return 0; | |
| 345 | |
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346 typeArrayOop value = java_lang_String::value(java_string); |
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347 int offset = java_lang_String::offset(java_string); |
| 6162 | 348 return java_lang_String::to_hash(value->char_at_addr(offset), length); |
| 349 } | |
| 350 | |
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351 char* java_lang_String::as_quoted_ascii(oop java_string) { |
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352 typeArrayOop value = java_lang_String::value(java_string); |
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353 int offset = java_lang_String::offset(java_string); |
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354 int length = java_lang_String::length(java_string); |
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355 |
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356 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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357 if (base == NULL) return NULL; |
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358 |
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359 int result_length = UNICODE::quoted_ascii_length(base, length) + 1; |
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360 char* result = NEW_RESOURCE_ARRAY(char, result_length); |
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361 UNICODE::as_quoted_ascii(base, length, result, result_length); |
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362 assert(result_length >= length + 1, "must not be shorter"); |
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363 assert(result_length == (int)strlen(result) + 1, "must match"); |
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364 return result; |
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365 } |
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366 |
| 6162 | 367 unsigned int java_lang_String::hash_string(oop java_string) { |
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368 int length = java_lang_String::length(java_string); |
| 6162 | 369 // Zero length string doesn't hash necessarily hash to zero. |
| 370 if (length == 0) { | |
| 371 return StringTable::hash_string(NULL, 0); | |
| 372 } | |
| 373 | |
| 374 typeArrayOop value = java_lang_String::value(java_string); | |
| 375 int offset = java_lang_String::offset(java_string); | |
| 376 return StringTable::hash_string(value->char_at_addr(offset), length); | |
|
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377 } |
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378 |
|
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379 Symbol* java_lang_String::as_symbol(Handle java_string, TRAPS) { |
| 0 | 380 oop obj = java_string(); |
| 381 typeArrayOop value = java_lang_String::value(obj); | |
| 382 int offset = java_lang_String::offset(obj); | |
| 383 int length = java_lang_String::length(obj); | |
|
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384 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
|
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385 Symbol* sym = SymbolTable::lookup_unicode(base, length, THREAD); |
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386 return sym; |
| 0 | 387 } |
| 388 | |
|
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389 Symbol* java_lang_String::as_symbol_or_null(oop java_string) { |
|
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390 typeArrayOop value = java_lang_String::value(java_string); |
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391 int offset = java_lang_String::offset(java_string); |
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392 int length = java_lang_String::length(java_string); |
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393 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
|
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394 return SymbolTable::probe_unicode(base, length); |
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395 } |
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396 |
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397 |
| 0 | 398 int java_lang_String::utf8_length(oop java_string) { |
| 399 typeArrayOop value = java_lang_String::value(java_string); | |
| 400 int offset = java_lang_String::offset(java_string); | |
| 401 int length = java_lang_String::length(java_string); | |
| 402 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
| 403 return UNICODE::utf8_length(position, length); | |
| 404 } | |
| 405 | |
| 406 char* java_lang_String::as_utf8_string(oop java_string) { | |
| 407 typeArrayOop value = java_lang_String::value(java_string); | |
| 408 int offset = java_lang_String::offset(java_string); | |
| 409 int length = java_lang_String::length(java_string); | |
| 410 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
| 411 return UNICODE::as_utf8(position, length); | |
| 412 } | |
| 413 | |
|
1989
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6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
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|
414 char* java_lang_String::as_utf8_string(oop java_string, char* buf, int buflen) { |
|
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415 typeArrayOop value = java_lang_String::value(java_string); |
|
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416 int offset = java_lang_String::offset(java_string); |
|
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417 int length = java_lang_String::length(java_string); |
|
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418 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); |
|
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419 return UNICODE::as_utf8(position, length, buf, buflen); |
|
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|
420 } |
|
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|
421 |
| 0 | 422 char* java_lang_String::as_utf8_string(oop java_string, int start, int len) { |
| 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 assert(start + len <= length, "just checking"); | |
| 427 jchar* position = value->char_at_addr(offset + start); | |
| 428 return UNICODE::as_utf8(position, len); | |
| 429 } | |
| 430 | |
| 431 bool java_lang_String::equals(oop java_string, jchar* chars, int len) { | |
| 6867 | 432 assert(java_string->klass() == SystemDictionary::String_klass(), |
| 0 | 433 "must be java_string"); |
| 434 typeArrayOop value = java_lang_String::value(java_string); | |
| 435 int offset = java_lang_String::offset(java_string); | |
| 436 int length = java_lang_String::length(java_string); | |
| 437 if (length != len) { | |
| 438 return false; | |
| 439 } | |
| 440 for (int i = 0; i < len; i++) { | |
| 441 if (value->char_at(i + offset) != chars[i]) { | |
| 442 return false; | |
| 443 } | |
| 444 } | |
| 445 return true; | |
| 446 } | |
| 447 | |
| 448 void java_lang_String::print(Handle java_string, outputStream* st) { | |
| 449 oop obj = java_string(); | |
| 1142 | 450 assert(obj->klass() == SystemDictionary::String_klass(), "must be java_string"); |
| 0 | 451 typeArrayOop value = java_lang_String::value(obj); |
| 452 int offset = java_lang_String::offset(obj); | |
| 453 int length = java_lang_String::length(obj); | |
| 454 | |
| 455 int end = MIN2(length, 100); | |
| 456 if (value == NULL) { | |
| 457 // This can happen if, e.g., printing a String | |
| 458 // object before its initializer has been called | |
| 459 st->print_cr("NULL"); | |
| 460 } else { | |
| 461 st->print("\""); | |
| 462 for (int index = 0; index < length; index++) { | |
| 463 st->print("%c", value->char_at(index + offset)); | |
| 464 } | |
| 465 st->print("\""); | |
| 466 } | |
| 467 } | |
| 468 | |
|
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469 static void initialize_static_field(fieldDescriptor* fd, TRAPS) { |
|
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470 Handle mirror (THREAD, fd->field_holder()->java_mirror()); |
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471 assert(mirror.not_null() && fd->is_static(), "just checking"); |
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472 if (fd->has_initial_value()) { |
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473 BasicType t = fd->field_type(); |
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474 switch (t) { |
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475 case T_BYTE: |
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476 mirror()->byte_field_put(fd->offset(), fd->int_initial_value()); |
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477 break; |
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478 case T_BOOLEAN: |
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479 mirror()->bool_field_put(fd->offset(), fd->int_initial_value()); |
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480 break; |
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481 case T_CHAR: |
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482 mirror()->char_field_put(fd->offset(), fd->int_initial_value()); |
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483 break; |
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484 case T_SHORT: |
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485 mirror()->short_field_put(fd->offset(), fd->int_initial_value()); |
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486 break; |
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487 case T_INT: |
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488 mirror()->int_field_put(fd->offset(), fd->int_initial_value()); |
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489 break; |
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490 case T_FLOAT: |
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491 mirror()->float_field_put(fd->offset(), fd->float_initial_value()); |
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492 break; |
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493 case T_DOUBLE: |
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494 mirror()->double_field_put(fd->offset(), fd->double_initial_value()); |
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495 break; |
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496 case T_LONG: |
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497 mirror()->long_field_put(fd->offset(), fd->long_initial_value()); |
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498 break; |
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499 case T_OBJECT: |
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500 { |
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501 #ifdef ASSERT |
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502 TempNewSymbol sym = SymbolTable::new_symbol("Ljava/lang/String;", CHECK); |
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503 assert(fd->signature() == sym, "just checking"); |
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504 #endif |
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505 oop string = fd->string_initial_value(CHECK); |
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506 mirror()->obj_field_put(fd->offset(), string); |
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507 } |
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508 break; |
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509 default: |
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510 THROW_MSG(vmSymbols::java_lang_ClassFormatError(), |
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511 "Illegal ConstantValue attribute in class file"); |
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512 } |
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513 } |
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514 } |
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515 |
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516 |
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517 void java_lang_Class::fixup_mirror(KlassHandle k, TRAPS) { |
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518 assert(InstanceMirrorKlass::offset_of_static_fields() != 0, "must have been computed already"); |
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519 |
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520 // If the offset was read from the shared archive, it was fixed up already |
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521 if (!k->is_shared()) { |
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522 if (k->oop_is_instance()) { |
| 3938 | 523 // During bootstrap, java.lang.Class wasn't loaded so static field |
| 524 // offsets were computed without the size added it. Go back and | |
| 525 // update all the static field offsets to included the size. | |
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526 for (JavaFieldStream fs(InstanceKlass::cast(k())); !fs.done(); fs.next()) { |
| 3938 | 527 if (fs.access_flags().is_static()) { |
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528 int real_offset = fs.offset() + InstanceMirrorKlass::offset_of_static_fields(); |
| 3938 | 529 fs.set_offset(real_offset); |
| 530 } | |
| 531 } | |
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532 } |
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533 } |
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534 create_mirror(k, CHECK); |
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535 } |
| 0 | 536 |
| 537 oop java_lang_Class::create_mirror(KlassHandle k, TRAPS) { | |
| 538 assert(k->java_mirror() == NULL, "should only assign mirror once"); | |
| 539 // Use this moment of initialization to cache modifier_flags also, | |
| 540 // to support Class.getModifiers(). Instance classes recalculate | |
| 541 // the cached flags after the class file is parsed, but before the | |
| 542 // class is put into the system dictionary. | |
| 543 int computed_modifiers = k->compute_modifier_flags(CHECK_0); | |
| 544 k->set_modifier_flags(computed_modifiers); | |
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545 // Class_klass has to be loaded because it is used to allocate |
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546 // the mirror. |
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547 if (SystemDictionary::Class_klass_loaded()) { |
| 0 | 548 // Allocate mirror (java.lang.Class instance) |
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549 Handle mirror = InstanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(k, CHECK_0); |
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550 |
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551 InstanceMirrorKlass* mk = InstanceMirrorKlass::cast(mirror->klass()); |
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552 java_lang_Class::set_static_oop_field_count(mirror(), mk->compute_static_oop_field_count(mirror())); |
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553 |
| 0 | 554 // It might also have a component mirror. This mirror must already exist. |
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555 if (k->oop_is_array()) { |
| 0 | 556 Handle comp_mirror; |
| 557 if (k->oop_is_typeArray()) { | |
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558 BasicType type = TypeArrayKlass::cast(k())->element_type(); |
| 0 | 559 comp_mirror = Universe::java_mirror(type); |
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560 } else { |
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561 assert(k->oop_is_objArray(), "Must be"); |
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562 Klass* element_klass = ObjArrayKlass::cast(k())->element_klass(); |
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563 assert(element_klass != NULL, "Must have an element klass"); |
| 6983 | 564 comp_mirror = element_klass->java_mirror(); |
| 0 | 565 } |
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566 assert(comp_mirror.not_null(), "must have a mirror"); |
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567 |
| 0 | 568 // Two-way link between the array klass and its component mirror: |
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569 ArrayKlass::cast(k())->set_component_mirror(comp_mirror()); |
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570 set_array_klass(comp_mirror(), k()); |
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571 } else { |
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572 assert(k->oop_is_instance(), "Must be"); |
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573 // Initialize static fields |
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574 InstanceKlass::cast(k())->do_local_static_fields(&initialize_static_field, CHECK_NULL); |
| 0 | 575 } |
| 576 return mirror(); | |
| 577 } else { | |
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578 if (fixup_mirror_list() == NULL) { |
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579 GrowableArray<Klass*>* list = |
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580 new (ResourceObj::C_HEAP, mtClass) GrowableArray<Klass*>(40, true); |
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581 set_fixup_mirror_list(list); |
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582 } |
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583 fixup_mirror_list()->push(k()); |
| 0 | 584 return NULL; |
| 585 } | |
| 586 } | |
| 587 | |
| 588 | |
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589 |
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590 int java_lang_Class::oop_size(oop java_class) { |
| 3938 | 591 assert(_oop_size_offset != 0, "must be set"); |
| 592 return java_class->int_field(_oop_size_offset); | |
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593 } |
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594 void java_lang_Class::set_oop_size(oop java_class, int size) { |
| 3938 | 595 assert(_oop_size_offset != 0, "must be set"); |
| 596 java_class->int_field_put(_oop_size_offset, size); | |
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597 } |
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598 int java_lang_Class::static_oop_field_count(oop java_class) { |
| 3938 | 599 assert(_static_oop_field_count_offset != 0, "must be set"); |
| 600 return java_class->int_field(_static_oop_field_count_offset); | |
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601 } |
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602 void java_lang_Class::set_static_oop_field_count(oop java_class, int size) { |
| 3938 | 603 assert(_static_oop_field_count_offset != 0, "must be set"); |
| 604 java_class->int_field_put(_static_oop_field_count_offset, size); | |
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605 } |
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606 |
| 0 | 607 oop java_lang_Class::create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS) { |
| 608 // This should be improved by adding a field at the Java level or by | |
| 609 // introducing a new VM klass (see comment in ClassFileParser) | |
|
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610 oop java_class = InstanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(NULL, CHECK_0); |
| 0 | 611 if (type != T_VOID) { |
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612 Klass* aklass = Universe::typeArrayKlassObj(type); |
| 0 | 613 assert(aklass != NULL, "correct bootstrap"); |
| 614 set_array_klass(java_class, aklass); | |
| 615 } | |
| 4009 | 616 #ifdef ASSERT |
|
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617 InstanceMirrorKlass* mk = InstanceMirrorKlass::cast(SystemDictionary::Class_klass()); |
| 4009 | 618 assert(java_lang_Class::static_oop_field_count(java_class) == 0, "should have been zeroed by allocation"); |
| 619 #endif | |
| 0 | 620 return java_class; |
| 621 } | |
| 622 | |
| 623 | |
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624 Klass* java_lang_Class::as_Klass(oop java_class) { |
| 0 | 625 //%note memory_2 |
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626 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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627 Klass* k = ((Klass*)java_class->metadata_field(_klass_offset)); |
| 0 | 628 assert(k == NULL || k->is_klass(), "type check"); |
| 629 return k; | |
| 630 } | |
| 631 | |
| 632 | |
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633 void java_lang_Class::set_klass(oop java_class, Klass* klass) { |
| 4009 | 634 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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635 java_class->metadata_field_put(_klass_offset, klass); |
| 4009 | 636 } |
| 637 | |
| 638 | |
|
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639 void java_lang_Class::print_signature(oop java_class, outputStream* st) { |
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640 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
|
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641 Symbol* name = NULL; |
|
665
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642 bool is_instance = false; |
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643 if (is_primitive(java_class)) { |
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644 name = vmSymbols::type_signature(primitive_type(java_class)); |
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645 } else { |
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646 Klass* k = as_Klass(java_class); |
| 6983 | 647 is_instance = k->oop_is_instance(); |
| 648 name = k->name(); | |
|
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649 } |
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650 if (name == NULL) { |
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651 st->print("<null>"); |
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652 return; |
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653 } |
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654 if (is_instance) st->print("L"); |
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655 st->write((char*) name->base(), (int) name->utf8_length()); |
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656 if (is_instance) st->print(";"); |
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657 } |
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658 |
|
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659 Symbol* java_lang_Class::as_signature(oop java_class, bool intern_if_not_found, TRAPS) { |
|
665
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660 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
|
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661 Symbol* name; |
|
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662 if (is_primitive(java_class)) { |
|
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663 name = vmSymbols::type_signature(primitive_type(java_class)); |
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664 // Because this can create a new symbol, the caller has to decrement |
|
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665 // the refcount, so make adjustment here and below for symbols returned |
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666 // that are not created or incremented due to a successful lookup. |
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667 name->increment_refcount(); |
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668 } else { |
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669 Klass* k = as_Klass(java_class); |
| 6983 | 670 if (!k->oop_is_instance()) { |
| 671 name = k->name(); | |
|
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672 name->increment_refcount(); |
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673 } else { |
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674 ResourceMark rm; |
| 6983 | 675 const char* sigstr = k->signature_name(); |
|
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676 int siglen = (int) strlen(sigstr); |
|
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677 if (!intern_if_not_found) { |
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678 name = SymbolTable::probe(sigstr, siglen); |
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679 } else { |
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680 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
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681 } |
|
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682 } |
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683 } |
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684 return name; |
|
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685 } |
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686 |
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687 |
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688 Klass* java_lang_Class::array_klass(oop java_class) { |
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689 Klass* k = ((Klass*)java_class->metadata_field(_array_klass_offset)); |
| 6983 | 690 assert(k == NULL || k->is_klass() && k->oop_is_array(), "should be array klass"); |
| 0 | 691 return k; |
| 692 } | |
| 693 | |
| 694 | |
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695 void java_lang_Class::set_array_klass(oop java_class, Klass* klass) { |
| 6983 | 696 assert(klass->is_klass() && klass->oop_is_array(), "should be array klass"); |
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697 java_class->metadata_field_put(_array_klass_offset, klass); |
| 0 | 698 } |
| 699 | |
| 700 | |
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701 Method* java_lang_Class::resolved_constructor(oop java_class) { |
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702 Metadata* constructor = java_class->metadata_field(_resolved_constructor_offset); |
| 0 | 703 assert(constructor == NULL || constructor->is_method(), "should be method"); |
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704 return ((Method*)constructor); |
| 0 | 705 } |
| 706 | |
| 707 | |
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708 void java_lang_Class::set_resolved_constructor(oop java_class, Method* constructor) { |
| 0 | 709 assert(constructor->is_method(), "should be method"); |
|
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710 java_class->metadata_field_put(_resolved_constructor_offset, constructor); |
| 0 | 711 } |
| 712 | |
| 713 | |
| 714 bool java_lang_Class::is_primitive(oop java_class) { | |
|
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715 // should assert: |
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716 //assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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717 bool is_primitive = (java_class->metadata_field(_klass_offset) == NULL); |
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718 |
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719 #ifdef ASSERT |
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720 if (is_primitive) { |
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721 Klass* k = ((Klass*)java_class->metadata_field(_array_klass_offset)); |
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722 assert(k == NULL || is_java_primitive(ArrayKlass::cast(k)->element_type()), |
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723 "Should be either the T_VOID primitive or a java primitive"); |
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724 } |
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725 #endif |
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726 |
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727 return is_primitive; |
| 0 | 728 } |
| 729 | |
| 730 | |
| 731 BasicType java_lang_Class::primitive_type(oop java_class) { | |
| 732 assert(java_lang_Class::is_primitive(java_class), "just checking"); | |
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733 Klass* ak = ((Klass*)java_class->metadata_field(_array_klass_offset)); |
| 0 | 734 BasicType type = T_VOID; |
| 735 if (ak != NULL) { | |
| 736 // Note: create_basic_type_mirror above initializes ak to a non-null value. | |
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737 type = ArrayKlass::cast(ak)->element_type(); |
| 0 | 738 } else { |
| 739 assert(java_class == Universe::void_mirror(), "only valid non-array primitive"); | |
| 740 } | |
| 741 assert(Universe::java_mirror(type) == java_class, "must be consistent"); | |
| 742 return type; | |
| 743 } | |
| 744 | |
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745 BasicType java_lang_Class::as_BasicType(oop java_class, Klass** reference_klass) { |
|
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746 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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747 if (is_primitive(java_class)) { |
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748 if (reference_klass != NULL) |
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749 (*reference_klass) = NULL; |
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750 return primitive_type(java_class); |
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751 } else { |
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752 if (reference_klass != NULL) |
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753 (*reference_klass) = as_Klass(java_class); |
|
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754 return T_OBJECT; |
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755 } |
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756 } |
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757 |
| 0 | 758 |
| 759 oop java_lang_Class::primitive_mirror(BasicType t) { | |
| 760 oop mirror = Universe::java_mirror(t); | |
| 1142 | 761 assert(mirror != NULL && mirror->is_a(SystemDictionary::Class_klass()), "must be a Class"); |
| 0 | 762 assert(java_lang_Class::is_primitive(mirror), "must be primitive"); |
| 763 return mirror; | |
| 764 } | |
| 765 | |
| 766 bool java_lang_Class::offsets_computed = false; | |
| 767 int java_lang_Class::classRedefinedCount_offset = -1; | |
| 768 | |
| 769 void java_lang_Class::compute_offsets() { | |
| 770 assert(!offsets_computed, "offsets should be initialized only once"); | |
| 771 offsets_computed = true; | |
| 772 | |
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773 Klass* klass_oop = SystemDictionary::Class_klass(); |
| 0 | 774 // The classRedefinedCount field is only present starting in 1.5, |
| 775 // so don't go fatal. | |
|
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776 compute_optional_offset(classRedefinedCount_offset, |
| 3938 | 777 klass_oop, vmSymbols::classRedefinedCount_name(), vmSymbols::int_signature()); |
| 778 | |
| 779 CLASS_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
| 0 | 780 } |
| 781 | |
| 782 int java_lang_Class::classRedefinedCount(oop the_class_mirror) { | |
| 783 if (!JDK_Version::is_gte_jdk15x_version() | |
| 784 || classRedefinedCount_offset == -1) { | |
| 785 // The classRedefinedCount field is only present starting in 1.5. | |
| 786 // If we don't have an offset for it then just return -1 as a marker. | |
| 787 return -1; | |
| 788 } | |
| 789 | |
| 790 return the_class_mirror->int_field(classRedefinedCount_offset); | |
| 791 } | |
| 792 | |
| 793 void java_lang_Class::set_classRedefinedCount(oop the_class_mirror, int value) { | |
| 794 if (!JDK_Version::is_gte_jdk15x_version() | |
| 795 || classRedefinedCount_offset == -1) { | |
| 796 // The classRedefinedCount field is only present starting in 1.5. | |
| 797 // If we don't have an offset for it then nothing to set. | |
| 798 return; | |
| 799 } | |
| 800 | |
| 801 the_class_mirror->int_field_put(classRedefinedCount_offset, value); | |
| 802 } | |
| 803 | |
| 804 | |
| 805 // Note: JDK1.1 and before had a privateInfo_offset field which was used for the | |
| 806 // platform thread structure, and a eetop offset which was used for thread | |
| 807 // local storage (and unused by the HotSpot VM). In JDK1.2 the two structures | |
| 808 // merged, so in the HotSpot VM we just use the eetop field for the thread | |
| 809 // instead of the privateInfo_offset. | |
| 810 // | |
| 811 // Note: The stackSize field is only present starting in 1.4. | |
| 812 | |
| 813 int java_lang_Thread::_name_offset = 0; | |
| 814 int java_lang_Thread::_group_offset = 0; | |
| 815 int java_lang_Thread::_contextClassLoader_offset = 0; | |
| 816 int java_lang_Thread::_inheritedAccessControlContext_offset = 0; | |
| 817 int java_lang_Thread::_priority_offset = 0; | |
| 818 int java_lang_Thread::_eetop_offset = 0; | |
| 819 int java_lang_Thread::_daemon_offset = 0; | |
| 820 int java_lang_Thread::_stillborn_offset = 0; | |
| 821 int java_lang_Thread::_stackSize_offset = 0; | |
| 822 int java_lang_Thread::_tid_offset = 0; | |
| 823 int java_lang_Thread::_thread_status_offset = 0; | |
| 824 int java_lang_Thread::_park_blocker_offset = 0; | |
| 825 int java_lang_Thread::_park_event_offset = 0 ; | |
| 826 | |
| 827 | |
| 828 void java_lang_Thread::compute_offsets() { | |
| 829 assert(_group_offset == 0, "offsets should be initialized only once"); | |
| 830 | |
|
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831 Klass* k = SystemDictionary::Thread_klass(); |
|
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832 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::char_array_signature()); |
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833 compute_offset(_group_offset, k, vmSymbols::group_name(), vmSymbols::threadgroup_signature()); |
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834 compute_offset(_contextClassLoader_offset, k, vmSymbols::contextClassLoader_name(), vmSymbols::classloader_signature()); |
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835 compute_offset(_inheritedAccessControlContext_offset, k, vmSymbols::inheritedAccessControlContext_name(), vmSymbols::accesscontrolcontext_signature()); |
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836 compute_offset(_priority_offset, k, vmSymbols::priority_name(), vmSymbols::int_signature()); |
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837 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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838 compute_offset(_eetop_offset, k, vmSymbols::eetop_name(), vmSymbols::long_signature()); |
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839 compute_offset(_stillborn_offset, k, vmSymbols::stillborn_name(), vmSymbols::bool_signature()); |
| 0 | 840 // The stackSize field is only present starting in 1.4, so don't go fatal. |
|
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841 compute_optional_offset(_stackSize_offset, k, vmSymbols::stackSize_name(), vmSymbols::long_signature()); |
| 0 | 842 // The tid and thread_status fields are only present starting in 1.5, so don't go fatal. |
|
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843 compute_optional_offset(_tid_offset, k, vmSymbols::thread_id_name(), vmSymbols::long_signature()); |
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844 compute_optional_offset(_thread_status_offset, k, vmSymbols::thread_status_name(), vmSymbols::int_signature()); |
| 0 | 845 // The parkBlocker field is only present starting in 1.6, so don't go fatal. |
|
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846 compute_optional_offset(_park_blocker_offset, k, vmSymbols::park_blocker_name(), vmSymbols::object_signature()); |
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847 compute_optional_offset(_park_event_offset, k, vmSymbols::park_event_name(), |
| 0 | 848 vmSymbols::long_signature()); |
| 849 } | |
| 850 | |
| 851 | |
| 852 JavaThread* java_lang_Thread::thread(oop java_thread) { | |
|
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853 return (JavaThread*)java_thread->address_field(_eetop_offset); |
| 0 | 854 } |
| 855 | |
| 856 | |
| 857 void java_lang_Thread::set_thread(oop java_thread, JavaThread* thread) { | |
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858 java_thread->address_field_put(_eetop_offset, (address)thread); |
| 0 | 859 } |
| 860 | |
| 861 | |
| 862 typeArrayOop java_lang_Thread::name(oop java_thread) { | |
| 863 oop name = java_thread->obj_field(_name_offset); | |
|
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864 assert(name == NULL || (name->is_typeArray() && TypeArrayKlass::cast(name->klass())->element_type() == T_CHAR), "just checking"); |
| 0 | 865 return typeArrayOop(name); |
| 866 } | |
| 867 | |
| 868 | |
| 869 void java_lang_Thread::set_name(oop java_thread, typeArrayOop name) { | |
| 870 assert(java_thread->obj_field(_name_offset) == NULL, "name should be NULL"); | |
| 871 java_thread->obj_field_put(_name_offset, name); | |
| 872 } | |
| 873 | |
| 874 | |
| 875 ThreadPriority java_lang_Thread::priority(oop java_thread) { | |
| 876 return (ThreadPriority)java_thread->int_field(_priority_offset); | |
| 877 } | |
| 878 | |
| 879 | |
| 880 void java_lang_Thread::set_priority(oop java_thread, ThreadPriority priority) { | |
| 881 java_thread->int_field_put(_priority_offset, priority); | |
| 882 } | |
| 883 | |
| 884 | |
| 885 oop java_lang_Thread::threadGroup(oop java_thread) { | |
| 886 return java_thread->obj_field(_group_offset); | |
| 887 } | |
| 888 | |
| 889 | |
| 890 bool java_lang_Thread::is_stillborn(oop java_thread) { | |
| 891 return java_thread->bool_field(_stillborn_offset) != 0; | |
| 892 } | |
| 893 | |
| 894 | |
| 895 // We never have reason to turn the stillborn bit off | |
| 896 void java_lang_Thread::set_stillborn(oop java_thread) { | |
| 897 java_thread->bool_field_put(_stillborn_offset, true); | |
| 898 } | |
| 899 | |
| 900 | |
| 901 bool java_lang_Thread::is_alive(oop java_thread) { | |
| 902 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
| 903 return (thr != NULL); | |
| 904 } | |
| 905 | |
| 906 | |
| 907 bool java_lang_Thread::is_daemon(oop java_thread) { | |
| 908 return java_thread->bool_field(_daemon_offset) != 0; | |
| 909 } | |
| 910 | |
| 911 | |
| 912 void java_lang_Thread::set_daemon(oop java_thread) { | |
| 913 java_thread->bool_field_put(_daemon_offset, true); | |
| 914 } | |
| 915 | |
| 916 oop java_lang_Thread::context_class_loader(oop java_thread) { | |
| 917 return java_thread->obj_field(_contextClassLoader_offset); | |
| 918 } | |
| 919 | |
| 920 oop java_lang_Thread::inherited_access_control_context(oop java_thread) { | |
| 921 return java_thread->obj_field(_inheritedAccessControlContext_offset); | |
| 922 } | |
| 923 | |
| 924 | |
| 925 jlong java_lang_Thread::stackSize(oop java_thread) { | |
| 926 // The stackSize field is only present starting in 1.4 | |
| 927 if (_stackSize_offset > 0) { | |
| 928 assert(JDK_Version::is_gte_jdk14x_version(), "sanity check"); | |
| 929 return java_thread->long_field(_stackSize_offset); | |
| 930 } else { | |
| 931 return 0; | |
| 932 } | |
| 933 } | |
| 934 | |
| 935 // Write the thread status value to threadStatus field in java.lang.Thread java class. | |
| 936 void java_lang_Thread::set_thread_status(oop java_thread, | |
| 937 java_lang_Thread::ThreadStatus status) { | |
| 938 assert(JavaThread::current()->thread_state() == _thread_in_vm, "Java Thread is not running in vm"); | |
| 939 // The threadStatus is only present starting in 1.5 | |
| 940 if (_thread_status_offset > 0) { | |
| 941 java_thread->int_field_put(_thread_status_offset, status); | |
| 942 } | |
| 943 } | |
| 944 | |
| 945 // Read thread status value from threadStatus field in java.lang.Thread java class. | |
| 946 java_lang_Thread::ThreadStatus java_lang_Thread::get_thread_status(oop java_thread) { | |
| 947 assert(Thread::current()->is_VM_thread() || | |
| 948 JavaThread::current()->thread_state() == _thread_in_vm, | |
| 949 "Java Thread is not running in vm"); | |
| 950 // The threadStatus is only present starting in 1.5 | |
| 951 if (_thread_status_offset > 0) { | |
| 952 return (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
| 953 } else { | |
| 954 // All we can easily figure out is if it is alive, but that is | |
| 955 // enough info for a valid unknown status. | |
| 956 // These aren't restricted to valid set ThreadStatus values, so | |
| 957 // use JVMTI values and cast. | |
| 958 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
| 959 if (thr == NULL) { | |
| 960 // the thread hasn't run yet or is in the process of exiting | |
| 961 return NEW; | |
| 962 } | |
| 963 return (java_lang_Thread::ThreadStatus)JVMTI_THREAD_STATE_ALIVE; | |
| 964 } | |
| 965 } | |
| 966 | |
| 967 | |
| 968 jlong java_lang_Thread::thread_id(oop java_thread) { | |
| 969 // The thread ID field is only present starting in 1.5 | |
| 970 if (_tid_offset > 0) { | |
| 971 return java_thread->long_field(_tid_offset); | |
| 972 } else { | |
| 973 return 0; | |
| 974 } | |
| 975 } | |
| 976 | |
| 977 oop java_lang_Thread::park_blocker(oop java_thread) { | |
| 242 | 978 assert(JDK_Version::current().supports_thread_park_blocker() && |
| 979 _park_blocker_offset != 0, "Must support parkBlocker field"); | |
| 0 | 980 |
| 981 if (_park_blocker_offset > 0) { | |
| 982 return java_thread->obj_field(_park_blocker_offset); | |
| 983 } | |
| 984 | |
| 985 return NULL; | |
| 986 } | |
| 987 | |
| 988 jlong java_lang_Thread::park_event(oop java_thread) { | |
| 989 if (_park_event_offset > 0) { | |
| 990 return java_thread->long_field(_park_event_offset); | |
| 991 } | |
| 992 return 0; | |
| 993 } | |
| 994 | |
| 995 bool java_lang_Thread::set_park_event(oop java_thread, jlong ptr) { | |
| 996 if (_park_event_offset > 0) { | |
| 997 java_thread->long_field_put(_park_event_offset, ptr); | |
| 998 return true; | |
| 999 } | |
| 1000 return false; | |
| 1001 } | |
| 1002 | |
| 1003 | |
| 1004 const char* java_lang_Thread::thread_status_name(oop java_thread) { | |
| 1005 assert(JDK_Version::is_gte_jdk15x_version() && _thread_status_offset != 0, "Must have thread status"); | |
| 1006 ThreadStatus status = (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
| 1007 switch (status) { | |
| 1008 case NEW : return "NEW"; | |
| 1009 case RUNNABLE : return "RUNNABLE"; | |
| 1010 case SLEEPING : return "TIMED_WAITING (sleeping)"; | |
| 1011 case IN_OBJECT_WAIT : return "WAITING (on object monitor)"; | |
| 1012 case IN_OBJECT_WAIT_TIMED : return "TIMED_WAITING (on object monitor)"; | |
| 1013 case PARKED : return "WAITING (parking)"; | |
| 1014 case PARKED_TIMED : return "TIMED_WAITING (parking)"; | |
| 1015 case BLOCKED_ON_MONITOR_ENTER : return "BLOCKED (on object monitor)"; | |
| 1016 case TERMINATED : return "TERMINATED"; | |
| 1017 default : return "UNKNOWN"; | |
| 1018 }; | |
| 1019 } | |
| 1020 int java_lang_ThreadGroup::_parent_offset = 0; | |
| 1021 int java_lang_ThreadGroup::_name_offset = 0; | |
| 1022 int java_lang_ThreadGroup::_threads_offset = 0; | |
| 1023 int java_lang_ThreadGroup::_groups_offset = 0; | |
| 1024 int java_lang_ThreadGroup::_maxPriority_offset = 0; | |
| 1025 int java_lang_ThreadGroup::_destroyed_offset = 0; | |
| 1026 int java_lang_ThreadGroup::_daemon_offset = 0; | |
| 1027 int java_lang_ThreadGroup::_vmAllowSuspension_offset = 0; | |
| 1028 int java_lang_ThreadGroup::_nthreads_offset = 0; | |
| 1029 int java_lang_ThreadGroup::_ngroups_offset = 0; | |
| 1030 | |
| 1031 oop java_lang_ThreadGroup::parent(oop java_thread_group) { | |
| 1032 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1033 return java_thread_group->obj_field(_parent_offset); | |
| 1034 } | |
| 1035 | |
| 1036 // ("name as oop" accessor is not necessary) | |
| 1037 | |
| 1038 typeArrayOop java_lang_ThreadGroup::name(oop java_thread_group) { | |
| 1039 oop name = java_thread_group->obj_field(_name_offset); | |
| 1040 // ThreadGroup.name can be null | |
| 1041 return name == NULL ? (typeArrayOop)NULL : java_lang_String::value(name); | |
| 1042 } | |
| 1043 | |
| 1044 int java_lang_ThreadGroup::nthreads(oop java_thread_group) { | |
| 1045 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1046 return java_thread_group->int_field(_nthreads_offset); | |
| 1047 } | |
| 1048 | |
| 1049 objArrayOop java_lang_ThreadGroup::threads(oop java_thread_group) { | |
| 1050 oop threads = java_thread_group->obj_field(_threads_offset); | |
| 1051 assert(threads != NULL, "threadgroups should have threads"); | |
| 1052 assert(threads->is_objArray(), "just checking"); // Todo: Add better type checking code | |
| 1053 return objArrayOop(threads); | |
| 1054 } | |
| 1055 | |
| 1056 int java_lang_ThreadGroup::ngroups(oop java_thread_group) { | |
| 1057 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1058 return java_thread_group->int_field(_ngroups_offset); | |
| 1059 } | |
| 1060 | |
| 1061 objArrayOop java_lang_ThreadGroup::groups(oop java_thread_group) { | |
| 1062 oop groups = java_thread_group->obj_field(_groups_offset); | |
| 1063 assert(groups == NULL || groups->is_objArray(), "just checking"); // Todo: Add better type checking code | |
| 1064 return objArrayOop(groups); | |
| 1065 } | |
| 1066 | |
| 1067 ThreadPriority java_lang_ThreadGroup::maxPriority(oop java_thread_group) { | |
| 1068 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1069 return (ThreadPriority) java_thread_group->int_field(_maxPriority_offset); | |
| 1070 } | |
| 1071 | |
| 1072 bool java_lang_ThreadGroup::is_destroyed(oop java_thread_group) { | |
| 1073 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1074 return java_thread_group->bool_field(_destroyed_offset) != 0; | |
| 1075 } | |
| 1076 | |
| 1077 bool java_lang_ThreadGroup::is_daemon(oop java_thread_group) { | |
| 1078 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1079 return java_thread_group->bool_field(_daemon_offset) != 0; | |
| 1080 } | |
| 1081 | |
| 1082 bool java_lang_ThreadGroup::is_vmAllowSuspension(oop java_thread_group) { | |
| 1083 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1084 return java_thread_group->bool_field(_vmAllowSuspension_offset) != 0; | |
| 1085 } | |
| 1086 | |
| 1087 void java_lang_ThreadGroup::compute_offsets() { | |
| 1088 assert(_parent_offset == 0, "offsets should be initialized only once"); | |
| 1089 | |
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1090 Klass* k = SystemDictionary::ThreadGroup_klass(); |
| 0 | 1091 |
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1092 compute_offset(_parent_offset, k, vmSymbols::parent_name(), vmSymbols::threadgroup_signature()); |
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1093 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1094 compute_offset(_threads_offset, k, vmSymbols::threads_name(), vmSymbols::thread_array_signature()); |
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1095 compute_offset(_groups_offset, k, vmSymbols::groups_name(), vmSymbols::threadgroup_array_signature()); |
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1096 compute_offset(_maxPriority_offset, k, vmSymbols::maxPriority_name(), vmSymbols::int_signature()); |
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1097 compute_offset(_destroyed_offset, k, vmSymbols::destroyed_name(), vmSymbols::bool_signature()); |
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1098 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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1099 compute_offset(_vmAllowSuspension_offset, k, vmSymbols::vmAllowSuspension_name(), vmSymbols::bool_signature()); |
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1100 compute_offset(_nthreads_offset, k, vmSymbols::nthreads_name(), vmSymbols::int_signature()); |
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1101 compute_offset(_ngroups_offset, k, vmSymbols::ngroups_name(), vmSymbols::int_signature()); |
| 0 | 1102 } |
| 1103 | |
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1104 oop java_lang_Throwable::unassigned_stacktrace() { |
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1105 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Throwable_klass()); |
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1106 address addr = ik->static_field_addr(static_unassigned_stacktrace_offset); |
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1107 if (UseCompressedOops) { |
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1108 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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1109 } else { |
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1110 return oopDesc::load_decode_heap_oop((oop*)addr); |
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1111 } |
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1112 } |
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1113 |
| 0 | 1114 oop java_lang_Throwable::backtrace(oop throwable) { |
| 1115 return throwable->obj_field_acquire(backtrace_offset); | |
| 1116 } | |
| 1117 | |
| 1118 | |
| 1119 void java_lang_Throwable::set_backtrace(oop throwable, oop value) { | |
| 1120 throwable->release_obj_field_put(backtrace_offset, value); | |
| 1121 } | |
| 1122 | |
| 1123 | |
| 1124 oop java_lang_Throwable::message(oop throwable) { | |
| 1125 return throwable->obj_field(detailMessage_offset); | |
| 1126 } | |
| 1127 | |
| 1128 | |
| 1129 oop java_lang_Throwable::message(Handle throwable) { | |
| 1130 return throwable->obj_field(detailMessage_offset); | |
| 1131 } | |
| 1132 | |
| 1133 | |
| 1134 void java_lang_Throwable::set_message(oop throwable, oop value) { | |
| 1135 throwable->obj_field_put(detailMessage_offset, value); | |
| 1136 } | |
| 1137 | |
| 1138 | |
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1139 void java_lang_Throwable::set_stacktrace(oop throwable, oop st_element_array) { |
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1140 throwable->obj_field_put(stackTrace_offset, st_element_array); |
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1141 } |
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1142 |
| 0 | 1143 void java_lang_Throwable::clear_stacktrace(oop throwable) { |
| 1144 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
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1145 set_stacktrace(throwable, NULL); |
| 0 | 1146 } |
| 1147 | |
| 1148 | |
| 1149 void java_lang_Throwable::print(oop throwable, outputStream* st) { | |
| 1150 ResourceMark rm; | |
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1151 Klass* k = throwable->klass(); |
| 0 | 1152 assert(k != NULL, "just checking"); |
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1153 st->print("%s", InstanceKlass::cast(k)->external_name()); |
| 0 | 1154 oop msg = message(throwable); |
| 1155 if (msg != NULL) { | |
| 1156 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
| 1157 } | |
| 1158 } | |
| 1159 | |
| 1160 | |
| 1161 void java_lang_Throwable::print(Handle throwable, outputStream* st) { | |
| 1162 ResourceMark rm; | |
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1163 Klass* k = throwable->klass(); |
| 0 | 1164 assert(k != NULL, "just checking"); |
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1165 st->print("%s", InstanceKlass::cast(k)->external_name()); |
| 0 | 1166 oop msg = message(throwable); |
| 1167 if (msg != NULL) { | |
| 1168 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
| 1169 } | |
| 1170 } | |
| 1171 | |
| 1172 // Print stack trace element to resource allocated buffer | |
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1173 char* java_lang_Throwable::print_stack_element_to_buffer(Method* method, int bci) { |
| 0 | 1174 // Get strings and string lengths |
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1175 InstanceKlass* klass = method->method_holder(); |
| 0 | 1176 const char* klass_name = klass->external_name(); |
| 1177 int buf_len = (int)strlen(klass_name); | |
| 1178 char* source_file_name; | |
| 1179 if (klass->source_file_name() == NULL) { | |
| 1180 source_file_name = NULL; | |
| 1181 } else { | |
| 1182 source_file_name = klass->source_file_name()->as_C_string(); | |
| 1183 buf_len += (int)strlen(source_file_name); | |
| 1184 } | |
| 1185 char* method_name = method->name()->as_C_string(); | |
| 1186 buf_len += (int)strlen(method_name); | |
| 1187 | |
| 1188 // Allocate temporary buffer with extra space for formatting and line number | |
| 1189 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64); | |
| 1190 | |
| 1191 // Print stack trace line in buffer | |
| 1192 sprintf(buf, "\tat %s.%s", klass_name, method_name); | |
| 1193 if (method->is_native()) { | |
| 1194 strcat(buf, "(Native Method)"); | |
| 1195 } else { | |
| 1196 int line_number = method->line_number_from_bci(bci); | |
| 1197 if (source_file_name != NULL && (line_number != -1)) { | |
| 1198 // Sourcename and linenumber | |
| 1199 sprintf(buf + (int)strlen(buf), "(%s:%d)", source_file_name, line_number); | |
| 1200 } else if (source_file_name != NULL) { | |
| 1201 // Just sourcename | |
| 1202 sprintf(buf + (int)strlen(buf), "(%s)", source_file_name); | |
| 1203 } else { | |
| 1204 // Neither soucename and linenumber | |
| 1205 sprintf(buf + (int)strlen(buf), "(Unknown Source)"); | |
| 1206 } | |
| 1207 nmethod* nm = method->code(); | |
| 1208 if (WizardMode && nm != NULL) { | |
| 3960 | 1209 sprintf(buf + (int)strlen(buf), "(nmethod " INTPTR_FORMAT ")", (intptr_t)nm); |
| 0 | 1210 } |
| 1211 } | |
| 1212 | |
| 1213 return buf; | |
| 1214 } | |
| 1215 | |
| 1216 | |
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1217 void java_lang_Throwable::print_stack_element(Handle stream, Method* method, int bci) { |
| 0 | 1218 ResourceMark rm; |
| 1219 char* buf = print_stack_element_to_buffer(method, bci); | |
| 1220 print_to_stream(stream, buf); | |
| 1221 } | |
| 1222 | |
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1223 void java_lang_Throwable::print_stack_element(outputStream *st, Method* method, int bci) { |
| 0 | 1224 ResourceMark rm; |
| 1225 char* buf = print_stack_element_to_buffer(method, bci); | |
| 1226 st->print_cr("%s", buf); | |
| 1227 } | |
| 1228 | |
| 1229 void java_lang_Throwable::print_to_stream(Handle stream, const char* str) { | |
| 1230 if (stream.is_null()) { | |
| 1231 tty->print_cr("%s", str); | |
| 1232 } else { | |
| 1233 EXCEPTION_MARK; | |
| 1234 JavaValue result(T_VOID); | |
| 1235 Handle arg (THREAD, oopFactory::new_charArray(str, THREAD)); | |
| 1236 if (!HAS_PENDING_EXCEPTION) { | |
| 1237 JavaCalls::call_virtual(&result, | |
| 1238 stream, | |
| 1239 KlassHandle(THREAD, stream->klass()), | |
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1240 vmSymbols::println_name(), |
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1241 vmSymbols::char_array_void_signature(), |
| 0 | 1242 arg, |
| 1243 THREAD); | |
| 1244 } | |
| 1245 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
| 1246 if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION; | |
| 1247 } | |
| 1248 | |
| 1249 } | |
| 1250 | |
| 1251 | |
| 1252 const char* java_lang_Throwable::no_stack_trace_message() { | |
| 1253 return "\t<<no stack trace available>>"; | |
| 1254 } | |
| 1255 | |
| 1256 | |
| 1257 // Currently used only for exceptions occurring during startup | |
| 1258 void java_lang_Throwable::print_stack_trace(oop throwable, outputStream* st) { | |
| 1259 Thread *THREAD = Thread::current(); | |
| 1260 Handle h_throwable(THREAD, throwable); | |
| 1261 while (h_throwable.not_null()) { | |
| 1262 objArrayHandle result (THREAD, objArrayOop(backtrace(h_throwable()))); | |
| 1263 if (result.is_null()) { | |
| 1264 st->print_cr(no_stack_trace_message()); | |
| 1265 return; | |
| 1266 } | |
| 1267 | |
| 1268 while (result.not_null()) { | |
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1269 typeArrayHandle methods (THREAD, |
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1270 typeArrayOop(result->obj_at(trace_methods_offset))); |
| 0 | 1271 typeArrayHandle bcis (THREAD, |
| 1272 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
| 1273 | |
| 1274 if (methods.is_null() || bcis.is_null()) { | |
| 1275 st->print_cr(no_stack_trace_message()); | |
| 1276 return; | |
| 1277 } | |
| 1278 | |
| 1279 int length = methods()->length(); | |
| 1280 for (int index = 0; index < length; index++) { | |
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1281 Method* method = ((Method*)methods()->metadata_at(index)); |
| 0 | 1282 if (method == NULL) goto handle_cause; |
| 1283 int bci = bcis->ushort_at(index); | |
| 1284 print_stack_element(st, method, bci); | |
| 1285 } | |
| 1286 result = objArrayHandle(THREAD, objArrayOop(result->obj_at(trace_next_offset))); | |
| 1287 } | |
| 1288 handle_cause: | |
| 1289 { | |
| 1290 EXCEPTION_MARK; | |
| 1291 JavaValue result(T_OBJECT); | |
| 1292 JavaCalls::call_virtual(&result, | |
| 1293 h_throwable, | |
| 1294 KlassHandle(THREAD, h_throwable->klass()), | |
|
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1295 vmSymbols::getCause_name(), |
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1296 vmSymbols::void_throwable_signature(), |
| 0 | 1297 THREAD); |
| 1298 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
| 1299 if (HAS_PENDING_EXCEPTION) { | |
| 1300 CLEAR_PENDING_EXCEPTION; | |
| 1301 h_throwable = Handle(); | |
| 1302 } else { | |
| 1303 h_throwable = Handle(THREAD, (oop) result.get_jobject()); | |
| 1304 if (h_throwable.not_null()) { | |
| 1305 st->print("Caused by: "); | |
| 1306 print(h_throwable, st); | |
| 1307 st->cr(); | |
| 1308 } | |
| 1309 } | |
| 1310 } | |
| 1311 } | |
| 1312 } | |
| 1313 | |
| 1314 | |
| 1315 void java_lang_Throwable::print_stack_trace(oop throwable, oop print_stream) { | |
| 1316 // Note: this is no longer used in Merlin, but we support it for compatibility. | |
| 1317 Thread *thread = Thread::current(); | |
| 1318 Handle stream(thread, print_stream); | |
| 1319 objArrayHandle result (thread, objArrayOop(backtrace(throwable))); | |
| 1320 if (result.is_null()) { | |
| 1321 print_to_stream(stream, no_stack_trace_message()); | |
| 1322 return; | |
| 1323 } | |
| 1324 | |
| 1325 while (result.not_null()) { | |
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1326 typeArrayHandle methods(thread, |
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1327 typeArrayOop(result->obj_at(trace_methods_offset))); |
| 0 | 1328 typeArrayHandle bcis (thread, |
| 1329 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
| 1330 | |
| 1331 if (methods.is_null() || bcis.is_null()) { | |
| 1332 print_to_stream(stream, no_stack_trace_message()); | |
| 1333 return; | |
| 1334 } | |
| 1335 | |
| 1336 int length = methods()->length(); | |
| 1337 for (int index = 0; index < length; index++) { | |
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1338 Method* method = ((Method*)methods()->metadata_at(index)); |
| 0 | 1339 if (method == NULL) return; |
| 1340 int bci = bcis->ushort_at(index); | |
| 1341 print_stack_element(stream, method, bci); | |
| 1342 } | |
| 1343 result = objArrayHandle(thread, objArrayOop(result->obj_at(trace_next_offset))); | |
| 1344 } | |
| 1345 } | |
| 1346 | |
| 1347 // This class provides a simple wrapper over the internal structure of | |
| 1348 // exception backtrace to insulate users of the backtrace from needing | |
| 1349 // to know what it looks like. | |
| 1350 class BacktraceBuilder: public StackObj { | |
| 1351 private: | |
| 1352 Handle _backtrace; | |
| 1353 objArrayOop _head; | |
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1354 typeArrayOop _methods; |
| 0 | 1355 typeArrayOop _bcis; |
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1356 objArrayOop _mirrors; |
| 0 | 1357 int _index; |
| 1358 No_Safepoint_Verifier _nsv; | |
| 1359 | |
| 1360 public: | |
| 1361 | |
| 1362 enum { | |
| 1363 trace_methods_offset = java_lang_Throwable::trace_methods_offset, | |
| 1364 trace_bcis_offset = java_lang_Throwable::trace_bcis_offset, | |
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1365 trace_mirrors_offset = java_lang_Throwable::trace_mirrors_offset, |
| 0 | 1366 trace_next_offset = java_lang_Throwable::trace_next_offset, |
| 1367 trace_size = java_lang_Throwable::trace_size, | |
| 1368 trace_chunk_size = java_lang_Throwable::trace_chunk_size | |
| 1369 }; | |
| 1370 | |
| 1371 // constructor for new backtrace | |
|
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1372 BacktraceBuilder(TRAPS): _methods(NULL), _bcis(NULL), _head(NULL), _mirrors(NULL) { |
| 0 | 1373 expand(CHECK); |
| 1374 _backtrace = _head; | |
| 1375 _index = 0; | |
| 1376 } | |
| 1377 | |
| 1378 void expand(TRAPS) { | |
| 1379 objArrayHandle old_head(THREAD, _head); | |
| 1380 Pause_No_Safepoint_Verifier pnsv(&_nsv); | |
| 1381 | |
| 1382 objArrayOop head = oopFactory::new_objectArray(trace_size, CHECK); | |
| 1383 objArrayHandle new_head(THREAD, head); | |
| 1384 | |
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1385 typeArrayOop methods = oopFactory::new_metaDataArray(trace_chunk_size, CHECK); |
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1386 typeArrayHandle new_methods(THREAD, methods); |
| 0 | 1387 |
| 1388 typeArrayOop bcis = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
| 1389 typeArrayHandle new_bcis(THREAD, bcis); | |
| 1390 | |
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1391 objArrayOop mirrors = oopFactory::new_objectArray(trace_chunk_size, CHECK); |
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1392 objArrayHandle new_mirrors(THREAD, mirrors); |
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1393 |
| 0 | 1394 if (!old_head.is_null()) { |
| 1395 old_head->obj_at_put(trace_next_offset, new_head()); | |
| 1396 } | |
| 1397 new_head->obj_at_put(trace_methods_offset, new_methods()); | |
| 1398 new_head->obj_at_put(trace_bcis_offset, new_bcis()); | |
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1399 new_head->obj_at_put(trace_mirrors_offset, new_mirrors()); |
| 0 | 1400 |
| 1401 _head = new_head(); | |
| 1402 _methods = new_methods(); | |
| 1403 _bcis = new_bcis(); | |
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1404 _mirrors = new_mirrors(); |
| 0 | 1405 _index = 0; |
| 1406 } | |
| 1407 | |
| 1408 oop backtrace() { | |
| 1409 return _backtrace(); | |
| 1410 } | |
| 1411 | |
|
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1412 inline void push(Method* method, int bci, TRAPS) { |
|
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1413 // Smear the -1 bci to 0 since the array only holds unsigned |
|
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1414 // shorts. The later line number lookup would just smear the -1 |
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1415 // to a 0 even if it could be recorded. |
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1416 if (bci == SynchronizationEntryBCI) bci = 0; |
|
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1417 assert(bci == (jushort)bci, "doesn't fit"); |
|
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1418 |
| 0 | 1419 if (_index >= trace_chunk_size) { |
| 1420 methodHandle mhandle(THREAD, method); | |
| 1421 expand(CHECK); | |
| 1422 method = mhandle(); | |
| 1423 } | |
| 1424 | |
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1425 _methods->metadata_at_put(_index, method); |
| 0 | 1426 _bcis->ushort_at_put(_index, bci); |
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1427 // we need to save the mirrors in the backtrace to keep the methods from |
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1428 // being unloaded if their class loader is unloaded while we still have |
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1429 // this stack trace. |
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1430 _mirrors->obj_at_put(_index, method->method_holder()->java_mirror()); |
| 0 | 1431 _index++; |
| 1432 } | |
| 1433 | |
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1434 Method* current_method() { |
| 0 | 1435 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); |
|
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1436 return ((Method*)_methods->metadata_at(_index)); |
| 0 | 1437 } |
| 1438 | |
| 1439 jushort current_bci() { | |
| 1440 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
| 1441 return _bcis->ushort_at(_index); | |
| 1442 } | |
| 1443 }; | |
| 1444 | |
| 1445 | |
|
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1446 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method, TRAPS) { |
| 0 | 1447 if (!StackTraceInThrowable) return; |
| 1448 ResourceMark rm(THREAD); | |
| 1449 | |
| 1450 // Start out by clearing the backtrace for this object, in case the VM | |
| 1451 // runs out of memory while allocating the stack trace | |
| 1452 set_backtrace(throwable(), NULL); | |
| 1453 if (JDK_Version::is_gte_jdk14x_version()) { | |
| 1454 // New since 1.4, clear lazily constructed Java level stacktrace if | |
| 1455 // refilling occurs | |
|
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1456 // This is unnecessary in 1.7+ but harmless |
| 0 | 1457 clear_stacktrace(throwable()); |
| 1458 } | |
| 1459 | |
| 1460 int max_depth = MaxJavaStackTraceDepth; | |
| 1461 JavaThread* thread = (JavaThread*)THREAD; | |
| 1462 BacktraceBuilder bt(CHECK); | |
| 1463 | |
|
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1464 // If there is no Java frame just return the method that was being called |
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1465 // with bci 0 |
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1466 if (!thread->has_last_Java_frame()) { |
|
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1467 if (max_depth >= 1 && method() != NULL) { |
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1468 bt.push(method(), 0, CHECK); |
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1469 set_backtrace(throwable(), bt.backtrace()); |
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1470 } |
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1471 return; |
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1472 } |
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1473 |
| 0 | 1474 // Instead of using vframe directly, this version of fill_in_stack_trace |
| 1475 // basically handles everything by hand. This significantly improved the | |
| 1476 // speed of this method call up to 28.5% on Solaris sparc. 27.1% on Windows. | |
| 1477 // See bug 6333838 for more details. | |
| 1478 // The "ASSERT" here is to verify this method generates the exactly same stack | |
| 1479 // trace as utilizing vframe. | |
| 1480 #ifdef ASSERT | |
| 1481 vframeStream st(thread); | |
| 1482 methodHandle st_method(THREAD, st.method()); | |
| 1483 #endif | |
| 1484 int total_count = 0; | |
| 1485 RegisterMap map(thread, false); | |
| 1486 int decode_offset = 0; | |
| 1487 nmethod* nm = NULL; | |
| 1488 bool skip_fillInStackTrace_check = false; | |
| 1489 bool skip_throwableInit_check = false; | |
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1490 bool skip_hidden = !ShowHiddenFrames; |
| 0 | 1491 |
| 1492 for (frame fr = thread->last_frame(); max_depth != total_count;) { | |
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1493 Method* method = NULL; |
| 0 | 1494 int bci = 0; |
| 1495 | |
| 1496 // Compiled java method case. | |
| 1497 if (decode_offset != 0) { | |
| 1498 DebugInfoReadStream stream(nm, decode_offset); | |
| 1499 decode_offset = stream.read_int(); | |
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1500 method = (Method*)nm->metadata_at(stream.read_int()); |
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1501 bci = stream.read_bci(); |
| 0 | 1502 } else { |
| 1503 if (fr.is_first_frame()) break; | |
| 1504 address pc = fr.pc(); | |
| 1505 if (fr.is_interpreted_frame()) { | |
| 1506 intptr_t bcx = fr.interpreter_frame_bcx(); | |
| 1507 method = fr.interpreter_frame_method(); | |
| 1508 bci = fr.is_bci(bcx) ? bcx : method->bci_from((address)bcx); | |
| 1509 fr = fr.sender(&map); | |
| 1510 } else { | |
| 1511 CodeBlob* cb = fr.cb(); | |
| 1512 // HMMM QQQ might be nice to have frame return nm as NULL if cb is non-NULL | |
| 1513 // but non nmethod | |
| 1514 fr = fr.sender(&map); | |
| 1515 if (cb == NULL || !cb->is_nmethod()) { | |
| 1516 continue; | |
| 1517 } | |
| 1518 nm = (nmethod*)cb; | |
| 1519 if (nm->method()->is_native()) { | |
| 1520 method = nm->method(); | |
| 1521 bci = 0; | |
| 1522 } else { | |
| 1523 PcDesc* pd = nm->pc_desc_at(pc); | |
| 1524 decode_offset = pd->scope_decode_offset(); | |
| 1525 // if decode_offset is not equal to 0, it will execute the | |
| 1526 // "compiled java method case" at the beginning of the loop. | |
| 1527 continue; | |
| 1528 } | |
| 1529 } | |
| 1530 } | |
| 1531 #ifdef ASSERT | |
|
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1532 assert(st_method() == method && st.bci() == bci, |
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1533 "Wrong stack trace"); |
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1534 st.next(); |
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1535 // vframeStream::method isn't GC-safe so store off a copy |
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1536 // of the Method* in case we GC. |
|
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1537 if (!st.at_end()) { |
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1538 st_method = st.method(); |
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1539 } |
| 0 | 1540 #endif |
|
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1541 |
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1542 // the format of the stacktrace will be: |
|
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1543 // - 1 or more fillInStackTrace frames for the exception class (skipped) |
|
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1544 // - 0 or more <init> methods for the exception class (skipped) |
|
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1545 // - rest of the stack |
|
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|
1546 |
| 0 | 1547 if (!skip_fillInStackTrace_check) { |
|
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1548 if ((method->name() == vmSymbols::fillInStackTrace_name() || |
|
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1549 method->name() == vmSymbols::fillInStackTrace0_name()) && |
|
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1550 throwable->is_a(method->method_holder())) { |
| 0 | 1551 continue; |
| 1552 } | |
|
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1553 else { |
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1554 skip_fillInStackTrace_check = true; // gone past them all |
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1555 } |
| 0 | 1556 } |
| 1557 if (!skip_throwableInit_check) { | |
|
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1558 assert(skip_fillInStackTrace_check, "logic error in backtrace filtering"); |
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1559 |
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1560 // skip <init> methods of the exception class and superclasses |
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1561 // This is simlar to classic VM. |
| 0 | 1562 if (method->name() == vmSymbols::object_initializer_name() && |
| 1563 throwable->is_a(method->method_holder())) { | |
| 1564 continue; | |
| 1565 } else { | |
|
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1566 // there are none or we've seen them all - either way stop checking |
| 0 | 1567 skip_throwableInit_check = true; |
| 1568 } | |
| 1569 } | |
|
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1570 if (method->is_hidden()) { |
|
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1571 if (skip_hidden) continue; |
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1572 } |
| 0 | 1573 bt.push(method, bci, CHECK); |
| 1574 total_count++; | |
| 1575 } | |
| 1576 | |
| 1577 // Put completed stack trace into throwable object | |
| 1578 set_backtrace(throwable(), bt.backtrace()); | |
| 1579 } | |
| 1580 | |
|
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1581 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method) { |
| 0 | 1582 // No-op if stack trace is disabled |
| 1583 if (!StackTraceInThrowable) { | |
| 1584 return; | |
| 1585 } | |
| 1586 | |
| 1587 // Disable stack traces for some preallocated out of memory errors | |
| 1588 if (!Universe::should_fill_in_stack_trace(throwable)) { | |
| 1589 return; | |
| 1590 } | |
| 1591 | |
| 1592 PRESERVE_EXCEPTION_MARK; | |
| 1593 | |
| 1594 JavaThread* thread = JavaThread::active(); | |
|
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1595 fill_in_stack_trace(throwable, method, thread); |
| 0 | 1596 // ignore exceptions thrown during stack trace filling |
| 1597 CLEAR_PENDING_EXCEPTION; | |
| 1598 } | |
| 1599 | |
| 1600 void java_lang_Throwable::allocate_backtrace(Handle throwable, TRAPS) { | |
| 1601 // Allocate stack trace - backtrace is created but not filled in | |
| 1602 | |
| 1603 // No-op if stack trace is disabled | |
| 1604 if (!StackTraceInThrowable) return; | |
| 1605 | |
| 1606 objArrayOop h_oop = oopFactory::new_objectArray(trace_size, CHECK); | |
| 1607 objArrayHandle backtrace (THREAD, h_oop); | |
|
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1608 typeArrayOop m_oop = oopFactory::new_metaDataArray(trace_chunk_size, CHECK); |
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1609 typeArrayHandle methods (THREAD, m_oop); |
| 0 | 1610 typeArrayOop b = oopFactory::new_shortArray(trace_chunk_size, CHECK); |
| 1611 typeArrayHandle bcis(THREAD, b); | |
|
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1612 objArrayOop mirror_oop = oopFactory::new_objectArray(trace_chunk_size, CHECK); |
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1613 objArrayHandle mirrors (THREAD, mirror_oop); |
| 0 | 1614 |
| 1615 // backtrace has space for one chunk (next is NULL) | |
| 1616 backtrace->obj_at_put(trace_methods_offset, methods()); | |
| 1617 backtrace->obj_at_put(trace_bcis_offset, bcis()); | |
|
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1618 backtrace->obj_at_put(trace_mirrors_offset, mirrors()); |
| 0 | 1619 set_backtrace(throwable(), backtrace()); |
| 1620 } | |
| 1621 | |
| 1622 | |
| 1623 void java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(Handle throwable) { | |
| 1624 // Fill in stack trace into preallocated backtrace (no GC) | |
| 1625 | |
| 1626 // No-op if stack trace is disabled | |
| 1627 if (!StackTraceInThrowable) return; | |
| 1628 | |
| 1142 | 1629 assert(throwable->is_a(SystemDictionary::Throwable_klass()), "sanity check"); |
| 0 | 1630 |
|
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1631 objArrayOop backtrace = (objArrayOop)java_lang_Throwable::backtrace(throwable()); |
| 0 | 1632 assert(backtrace != NULL, "backtrace not preallocated"); |
| 1633 | |
|
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1634 oop m = backtrace->obj_at(trace_methods_offset); |
|
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1635 typeArrayOop methods = typeArrayOop(m); |
| 0 | 1636 assert(methods != NULL && methods->length() > 0, "method array not preallocated"); |
| 1637 | |
|
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1638 oop b = backtrace->obj_at(trace_bcis_offset); |
| 0 | 1639 typeArrayOop bcis = typeArrayOop(b); |
| 1640 assert(bcis != NULL, "bci array not preallocated"); | |
| 1641 | |
|
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1642 oop mr = backtrace->obj_at(trace_mirrors_offset); |
|
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1643 objArrayOop mirrors = objArrayOop(mr); |
|
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1644 assert(mirrors != NULL, "bci array not preallocated"); |
|
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1645 |
|
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1646 assert(methods->length() == bcis->length() && |
|
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1647 methods->length() == mirrors->length(), |
|
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1648 "method and bci arrays should match"); |
| 0 | 1649 |
| 1650 JavaThread* thread = JavaThread::current(); | |
| 1651 ResourceMark rm(thread); | |
| 1652 vframeStream st(thread); | |
| 1653 | |
| 1654 // Unlike fill_in_stack_trace we do not skip fillInStackTrace or throwable init | |
| 1655 // methods as preallocated errors aren't created by "java" code. | |
| 1656 | |
| 1657 // fill in as much stack trace as possible | |
| 1658 int max_chunks = MIN2(methods->length(), (int)MaxJavaStackTraceDepth); | |
| 1659 int chunk_count = 0; | |
| 1660 | |
| 1661 for (;!st.at_end(); st.next()) { | |
|
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1662 // Add entry and smear the -1 bci to 0 since the array only holds |
|
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1663 // unsigned shorts. The later line number lookup would just smear |
|
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1664 // the -1 to a 0 even if it could be recorded. |
|
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1665 int bci = st.bci(); |
|
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1666 if (bci == SynchronizationEntryBCI) bci = 0; |
|
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1667 assert(bci == (jushort)bci, "doesn't fit"); |
|
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1668 bcis->ushort_at_put(chunk_count, bci); |
|
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1669 methods->metadata_at_put(chunk_count, st.method()); |
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1670 mirrors->obj_at_put(chunk_count, |
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1671 st.method()->method_holder()->java_mirror()); |
| 0 | 1672 |
| 1673 chunk_count++; | |
| 1674 | |
| 1675 // Bail-out for deep stacks | |
| 1676 if (chunk_count >= max_chunks) break; | |
| 1677 } | |
|
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1678 |
|
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1679 // For Java 7+ we support the Throwable immutability protocol defined for Java 7. This support |
|
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1680 // was missing in 7u0 so in 7u0 there is a workaround in the Throwable class. That workaround |
|
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1681 // can be removed in a JDK using this JVM version |
|
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1682 if (JDK_Version::is_gte_jdk17x_version()) { |
|
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1683 java_lang_Throwable::set_stacktrace(throwable(), java_lang_Throwable::unassigned_stacktrace()); |
|
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1684 assert(java_lang_Throwable::unassigned_stacktrace() != NULL, "not initialized"); |
|
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1685 } |
|
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|
1686 |
| 0 | 1687 } |
| 1688 | |
| 1689 | |
| 1690 int java_lang_Throwable::get_stack_trace_depth(oop throwable, TRAPS) { | |
| 1691 if (throwable == NULL) { | |
| 1692 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
| 1693 } | |
| 1694 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
| 1695 int depth = 0; | |
| 1696 if (chunk != NULL) { | |
| 1697 // Iterate over chunks and count full ones | |
| 1698 while (true) { | |
| 1699 objArrayOop next = objArrayOop(chunk->obj_at(trace_next_offset)); | |
| 1700 if (next == NULL) break; | |
| 1701 depth += trace_chunk_size; | |
| 1702 chunk = next; | |
| 1703 } | |
| 1704 assert(chunk != NULL && chunk->obj_at(trace_next_offset) == NULL, "sanity check"); | |
| 1705 // Count element in remaining partial chunk | |
|
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1706 typeArrayOop methods = typeArrayOop(chunk->obj_at(trace_methods_offset)); |
| 0 | 1707 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); |
| 1708 assert(methods != NULL && bcis != NULL, "sanity check"); | |
| 1709 for (int i = 0; i < methods->length(); i++) { | |
|
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1710 if (methods->metadata_at(i) == NULL) break; |
| 0 | 1711 depth++; |
| 1712 } | |
| 1713 } | |
| 1714 return depth; | |
| 1715 } | |
| 1716 | |
| 1717 | |
| 1718 oop java_lang_Throwable::get_stack_trace_element(oop throwable, int index, TRAPS) { | |
| 1719 if (throwable == NULL) { | |
| 1720 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
| 1721 } | |
| 1722 if (index < 0) { | |
| 1723 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1724 } | |
| 1725 // Compute how many chunks to skip and index into actual chunk | |
| 1726 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
| 1727 int skip_chunks = index / trace_chunk_size; | |
| 1728 int chunk_index = index % trace_chunk_size; | |
| 1729 while (chunk != NULL && skip_chunks > 0) { | |
| 1730 chunk = objArrayOop(chunk->obj_at(trace_next_offset)); | |
| 1731 skip_chunks--; | |
| 1732 } | |
| 1733 if (chunk == NULL) { | |
| 1734 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1735 } | |
| 1736 // Get method,bci from chunk | |
|
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1737 typeArrayOop methods = typeArrayOop(chunk->obj_at(trace_methods_offset)); |
| 0 | 1738 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); |
| 1739 assert(methods != NULL && bcis != NULL, "sanity check"); | |
|
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1740 methodHandle method(THREAD, ((Method*)methods->metadata_at(chunk_index))); |
| 0 | 1741 int bci = bcis->ushort_at(chunk_index); |
| 1742 // Chunk can be partial full | |
| 1743 if (method.is_null()) { | |
| 1744 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1745 } | |
| 1746 | |
| 1747 oop element = java_lang_StackTraceElement::create(method, bci, CHECK_0); | |
| 1748 return element; | |
| 1749 } | |
| 1750 | |
| 1751 oop java_lang_StackTraceElement::create(methodHandle method, int bci, TRAPS) { | |
| 1752 // SystemDictionary::stackTraceElement_klass() will be null for pre-1.4 JDKs | |
| 1753 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
| 1754 | |
| 1755 // Allocate java.lang.StackTraceElement instance | |
|
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1756 Klass* k = SystemDictionary::StackTraceElement_klass(); |
|
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|
1757 assert(k != NULL, "must be loaded in 1.4+"); |
| 0 | 1758 instanceKlassHandle ik (THREAD, k); |
| 1759 if (ik->should_be_initialized()) { | |
| 1760 ik->initialize(CHECK_0); | |
| 1761 } | |
| 1762 | |
| 1763 Handle element = ik->allocate_instance_handle(CHECK_0); | |
| 1764 // Fill in class name | |
| 1765 ResourceMark rm(THREAD); | |
|
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|
1766 const char* str = method->method_holder()->external_name(); |
| 0 | 1767 oop classname = StringTable::intern((char*) str, CHECK_0); |
| 1768 java_lang_StackTraceElement::set_declaringClass(element(), classname); | |
| 1769 // Fill in method name | |
| 1770 oop methodname = StringTable::intern(method->name(), CHECK_0); | |
| 1771 java_lang_StackTraceElement::set_methodName(element(), methodname); | |
| 1772 // Fill in source file name | |
|
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1773 Symbol* source = method->method_holder()->source_file_name(); |
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1774 if (ShowHiddenFrames && source == NULL) |
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1775 source = vmSymbols::unknown_class_name(); |
| 0 | 1776 oop filename = StringTable::intern(source, CHECK_0); |
| 1777 java_lang_StackTraceElement::set_fileName(element(), filename); | |
| 1778 // File in source line number | |
| 1779 int line_number; | |
| 1780 if (method->is_native()) { | |
| 1781 // Negative value different from -1 below, enabling Java code in | |
| 1782 // class java.lang.StackTraceElement to distinguish "native" from | |
| 1783 // "no LineNumberTable". | |
| 1784 line_number = -2; | |
| 1785 } else { | |
| 1786 // Returns -1 if no LineNumberTable, and otherwise actual line number | |
| 1787 line_number = method->line_number_from_bci(bci); | |
|
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1788 if (line_number == -1 && ShowHiddenFrames) { |
|
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1789 line_number = bci + 1000000; |
|
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1790 } |
| 0 | 1791 } |
| 1792 java_lang_StackTraceElement::set_lineNumber(element(), line_number); | |
| 1793 | |
| 1794 return element(); | |
| 1795 } | |
| 1796 | |
| 1797 | |
| 1798 void java_lang_reflect_AccessibleObject::compute_offsets() { | |
|
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1799 Klass* k = SystemDictionary::reflect_AccessibleObject_klass(); |
|
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1800 compute_offset(override_offset, k, vmSymbols::override_name(), vmSymbols::bool_signature()); |
| 0 | 1801 } |
| 1802 | |
| 1803 jboolean java_lang_reflect_AccessibleObject::override(oop reflect) { | |
| 1804 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1805 return (jboolean) reflect->bool_field(override_offset); | |
| 1806 } | |
| 1807 | |
| 1808 void java_lang_reflect_AccessibleObject::set_override(oop reflect, jboolean value) { | |
| 1809 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1810 reflect->bool_field_put(override_offset, (int) value); | |
| 1811 } | |
| 1812 | |
| 1813 void java_lang_reflect_Method::compute_offsets() { | |
|
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1814 Klass* k = SystemDictionary::reflect_Method_klass(); |
|
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|
1815 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1816 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1817 compute_offset(returnType_offset, k, vmSymbols::returnType_name(), vmSymbols::class_signature()); |
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1818 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1819 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1820 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1821 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 1822 // The generic signature and annotations fields are only present in 1.5 |
| 1823 signature_offset = -1; | |
| 1824 annotations_offset = -1; | |
| 1825 parameter_annotations_offset = -1; | |
| 1826 annotation_default_offset = -1; | |
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1827 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1828 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1829 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
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1830 compute_optional_offset(annotation_default_offset, k, vmSymbols::annotation_default_name(), vmSymbols::byte_array_signature()); |
| 0 | 1831 } |
| 1832 | |
| 1833 Handle java_lang_reflect_Method::create(TRAPS) { | |
| 1834 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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1835 Klass* klass = SystemDictionary::reflect_Method_klass(); |
| 0 | 1836 // This class is eagerly initialized during VM initialization, since we keep a refence |
| 1837 // to one of the methods | |
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1838 assert(InstanceKlass::cast(klass)->is_initialized(), "must be initialized"); |
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1839 return InstanceKlass::cast(klass)->allocate_instance_handle(CHECK_NH); |
| 0 | 1840 } |
| 1841 | |
| 1842 oop java_lang_reflect_Method::clazz(oop reflect) { | |
| 1843 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1844 return reflect->obj_field(clazz_offset); | |
| 1845 } | |
| 1846 | |
| 1847 void java_lang_reflect_Method::set_clazz(oop reflect, oop value) { | |
| 1848 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1849 reflect->obj_field_put(clazz_offset, value); | |
| 1850 } | |
| 1851 | |
| 1852 int java_lang_reflect_Method::slot(oop reflect) { | |
| 1853 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1854 return reflect->int_field(slot_offset); | |
| 1855 } | |
| 1856 | |
| 1857 void java_lang_reflect_Method::set_slot(oop reflect, int value) { | |
| 1858 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1859 reflect->int_field_put(slot_offset, value); | |
| 1860 } | |
| 1861 | |
| 1862 oop java_lang_reflect_Method::name(oop method) { | |
| 1863 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1864 return method->obj_field(name_offset); | |
| 1865 } | |
| 1866 | |
| 1867 void java_lang_reflect_Method::set_name(oop method, oop value) { | |
| 1868 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1869 method->obj_field_put(name_offset, value); | |
| 1870 } | |
| 1871 | |
| 1872 oop java_lang_reflect_Method::return_type(oop method) { | |
| 1873 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1874 return method->obj_field(returnType_offset); | |
| 1875 } | |
| 1876 | |
| 1877 void java_lang_reflect_Method::set_return_type(oop method, oop value) { | |
| 1878 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1879 method->obj_field_put(returnType_offset, value); | |
| 1880 } | |
| 1881 | |
| 1882 oop java_lang_reflect_Method::parameter_types(oop method) { | |
| 1883 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1884 return method->obj_field(parameterTypes_offset); | |
| 1885 } | |
| 1886 | |
| 1887 void java_lang_reflect_Method::set_parameter_types(oop method, oop value) { | |
| 1888 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1889 method->obj_field_put(parameterTypes_offset, value); | |
| 1890 } | |
| 1891 | |
| 1892 oop java_lang_reflect_Method::exception_types(oop method) { | |
| 1893 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1894 return method->obj_field(exceptionTypes_offset); | |
| 1895 } | |
| 1896 | |
| 1897 void java_lang_reflect_Method::set_exception_types(oop method, oop value) { | |
| 1898 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1899 method->obj_field_put(exceptionTypes_offset, value); | |
| 1900 } | |
| 1901 | |
| 1902 int java_lang_reflect_Method::modifiers(oop method) { | |
| 1903 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1904 return method->int_field(modifiers_offset); | |
| 1905 } | |
| 1906 | |
| 1907 void java_lang_reflect_Method::set_modifiers(oop method, int value) { | |
| 1908 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1909 method->int_field_put(modifiers_offset, value); | |
| 1910 } | |
| 1911 | |
| 1912 bool java_lang_reflect_Method::has_signature_field() { | |
| 1913 return (signature_offset >= 0); | |
| 1914 } | |
| 1915 | |
| 1916 oop java_lang_reflect_Method::signature(oop method) { | |
| 1917 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1918 assert(has_signature_field(), "signature field must be present"); | |
| 1919 return method->obj_field(signature_offset); | |
| 1920 } | |
| 1921 | |
| 1922 void java_lang_reflect_Method::set_signature(oop method, oop value) { | |
| 1923 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1924 assert(has_signature_field(), "signature field must be present"); | |
| 1925 method->obj_field_put(signature_offset, value); | |
| 1926 } | |
| 1927 | |
| 1928 bool java_lang_reflect_Method::has_annotations_field() { | |
| 1929 return (annotations_offset >= 0); | |
| 1930 } | |
| 1931 | |
| 1932 oop java_lang_reflect_Method::annotations(oop method) { | |
| 1933 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1934 assert(has_annotations_field(), "annotations field must be present"); | |
| 1935 return method->obj_field(annotations_offset); | |
| 1936 } | |
| 1937 | |
| 1938 void java_lang_reflect_Method::set_annotations(oop method, oop value) { | |
| 1939 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1940 assert(has_annotations_field(), "annotations field must be present"); | |
| 1941 method->obj_field_put(annotations_offset, value); | |
| 1942 } | |
| 1943 | |
| 1944 bool java_lang_reflect_Method::has_parameter_annotations_field() { | |
| 1945 return (parameter_annotations_offset >= 0); | |
| 1946 } | |
| 1947 | |
| 1948 oop java_lang_reflect_Method::parameter_annotations(oop method) { | |
| 1949 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1950 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1951 return method->obj_field(parameter_annotations_offset); | |
| 1952 } | |
| 1953 | |
| 1954 void java_lang_reflect_Method::set_parameter_annotations(oop method, oop value) { | |
| 1955 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1956 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1957 method->obj_field_put(parameter_annotations_offset, value); | |
| 1958 } | |
| 1959 | |
| 1960 bool java_lang_reflect_Method::has_annotation_default_field() { | |
| 1961 return (annotation_default_offset >= 0); | |
| 1962 } | |
| 1963 | |
| 1964 oop java_lang_reflect_Method::annotation_default(oop method) { | |
| 1965 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1966 assert(has_annotation_default_field(), "annotation default field must be present"); | |
| 1967 return method->obj_field(annotation_default_offset); | |
| 1968 } | |
| 1969 | |
| 1970 void java_lang_reflect_Method::set_annotation_default(oop method, oop value) { | |
| 1971 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1972 assert(has_annotation_default_field(), "annotation default field must be present"); | |
| 1973 method->obj_field_put(annotation_default_offset, value); | |
| 1974 } | |
| 1975 | |
| 1976 void java_lang_reflect_Constructor::compute_offsets() { | |
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1977 Klass* k = SystemDictionary::reflect_Constructor_klass(); |
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1978 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1979 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1980 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1981 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1982 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 1983 // The generic signature and annotations fields are only present in 1.5 |
| 1984 signature_offset = -1; | |
| 1985 annotations_offset = -1; | |
| 1986 parameter_annotations_offset = -1; | |
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1987 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1988 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1989 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
| 0 | 1990 } |
| 1991 | |
| 1992 Handle java_lang_reflect_Constructor::create(TRAPS) { | |
| 1993 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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1994 Symbol* name = vmSymbols::java_lang_reflect_Constructor(); |
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1995 Klass* k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
| 0 | 1996 instanceKlassHandle klass (THREAD, k); |
| 1997 // Ensure it is initialized | |
| 1998 klass->initialize(CHECK_NH); | |
| 1999 return klass->allocate_instance_handle(CHECK_NH); | |
| 2000 } | |
| 2001 | |
| 2002 oop java_lang_reflect_Constructor::clazz(oop reflect) { | |
| 2003 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2004 return reflect->obj_field(clazz_offset); | |
| 2005 } | |
| 2006 | |
| 2007 void java_lang_reflect_Constructor::set_clazz(oop reflect, oop value) { | |
| 2008 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2009 reflect->obj_field_put(clazz_offset, value); | |
| 2010 } | |
| 2011 | |
| 2012 oop java_lang_reflect_Constructor::parameter_types(oop constructor) { | |
| 2013 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2014 return constructor->obj_field(parameterTypes_offset); | |
| 2015 } | |
| 2016 | |
| 2017 void java_lang_reflect_Constructor::set_parameter_types(oop constructor, oop value) { | |
| 2018 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2019 constructor->obj_field_put(parameterTypes_offset, value); | |
| 2020 } | |
| 2021 | |
| 2022 oop java_lang_reflect_Constructor::exception_types(oop constructor) { | |
| 2023 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2024 return constructor->obj_field(exceptionTypes_offset); | |
| 2025 } | |
| 2026 | |
| 2027 void java_lang_reflect_Constructor::set_exception_types(oop constructor, oop value) { | |
| 2028 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2029 constructor->obj_field_put(exceptionTypes_offset, value); | |
| 2030 } | |
| 2031 | |
| 2032 int java_lang_reflect_Constructor::slot(oop reflect) { | |
| 2033 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2034 return reflect->int_field(slot_offset); | |
| 2035 } | |
| 2036 | |
| 2037 void java_lang_reflect_Constructor::set_slot(oop reflect, int value) { | |
| 2038 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2039 reflect->int_field_put(slot_offset, value); | |
| 2040 } | |
| 2041 | |
| 2042 int java_lang_reflect_Constructor::modifiers(oop constructor) { | |
| 2043 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2044 return constructor->int_field(modifiers_offset); | |
| 2045 } | |
| 2046 | |
| 2047 void java_lang_reflect_Constructor::set_modifiers(oop constructor, int value) { | |
| 2048 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2049 constructor->int_field_put(modifiers_offset, value); | |
| 2050 } | |
| 2051 | |
| 2052 bool java_lang_reflect_Constructor::has_signature_field() { | |
| 2053 return (signature_offset >= 0); | |
| 2054 } | |
| 2055 | |
| 2056 oop java_lang_reflect_Constructor::signature(oop constructor) { | |
| 2057 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2058 assert(has_signature_field(), "signature field must be present"); | |
| 2059 return constructor->obj_field(signature_offset); | |
| 2060 } | |
| 2061 | |
| 2062 void java_lang_reflect_Constructor::set_signature(oop constructor, oop value) { | |
| 2063 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2064 assert(has_signature_field(), "signature field must be present"); | |
| 2065 constructor->obj_field_put(signature_offset, value); | |
| 2066 } | |
| 2067 | |
| 2068 bool java_lang_reflect_Constructor::has_annotations_field() { | |
| 2069 return (annotations_offset >= 0); | |
| 2070 } | |
| 2071 | |
| 2072 oop java_lang_reflect_Constructor::annotations(oop constructor) { | |
| 2073 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2074 assert(has_annotations_field(), "annotations field must be present"); | |
| 2075 return constructor->obj_field(annotations_offset); | |
| 2076 } | |
| 2077 | |
| 2078 void java_lang_reflect_Constructor::set_annotations(oop constructor, oop value) { | |
| 2079 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2080 assert(has_annotations_field(), "annotations field must be present"); | |
| 2081 constructor->obj_field_put(annotations_offset, value); | |
| 2082 } | |
| 2083 | |
| 2084 bool java_lang_reflect_Constructor::has_parameter_annotations_field() { | |
| 2085 return (parameter_annotations_offset >= 0); | |
| 2086 } | |
| 2087 | |
| 2088 oop java_lang_reflect_Constructor::parameter_annotations(oop method) { | |
| 2089 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2090 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 2091 return method->obj_field(parameter_annotations_offset); | |
| 2092 } | |
| 2093 | |
| 2094 void java_lang_reflect_Constructor::set_parameter_annotations(oop method, oop value) { | |
| 2095 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2096 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 2097 method->obj_field_put(parameter_annotations_offset, value); | |
| 2098 } | |
| 2099 | |
| 2100 void java_lang_reflect_Field::compute_offsets() { | |
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2101 Klass* k = SystemDictionary::reflect_Field_klass(); |
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2102 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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2103 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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2104 compute_offset(type_offset, k, vmSymbols::type_name(), vmSymbols::class_signature()); |
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2105 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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2106 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 2107 // The generic signature and annotations fields are only present in 1.5 |
| 2108 signature_offset = -1; | |
| 2109 annotations_offset = -1; | |
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2110 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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2111 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
| 0 | 2112 } |
| 2113 | |
| 2114 Handle java_lang_reflect_Field::create(TRAPS) { | |
| 2115 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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2116 Symbol* name = vmSymbols::java_lang_reflect_Field(); |
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2117 Klass* k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
| 0 | 2118 instanceKlassHandle klass (THREAD, k); |
| 2119 // Ensure it is initialized | |
| 2120 klass->initialize(CHECK_NH); | |
| 2121 return klass->allocate_instance_handle(CHECK_NH); | |
| 2122 } | |
| 2123 | |
| 2124 oop java_lang_reflect_Field::clazz(oop reflect) { | |
| 2125 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2126 return reflect->obj_field(clazz_offset); | |
| 2127 } | |
| 2128 | |
| 2129 void java_lang_reflect_Field::set_clazz(oop reflect, oop value) { | |
| 2130 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2131 reflect->obj_field_put(clazz_offset, value); | |
| 2132 } | |
| 2133 | |
| 2134 oop java_lang_reflect_Field::name(oop field) { | |
| 2135 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2136 return field->obj_field(name_offset); | |
| 2137 } | |
| 2138 | |
| 2139 void java_lang_reflect_Field::set_name(oop field, oop value) { | |
| 2140 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2141 field->obj_field_put(name_offset, value); | |
| 2142 } | |
| 2143 | |
| 2144 oop java_lang_reflect_Field::type(oop field) { | |
| 2145 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2146 return field->obj_field(type_offset); | |
| 2147 } | |
| 2148 | |
| 2149 void java_lang_reflect_Field::set_type(oop field, oop value) { | |
| 2150 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2151 field->obj_field_put(type_offset, value); | |
| 2152 } | |
| 2153 | |
| 2154 int java_lang_reflect_Field::slot(oop reflect) { | |
| 2155 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2156 return reflect->int_field(slot_offset); | |
| 2157 } | |
| 2158 | |
| 2159 void java_lang_reflect_Field::set_slot(oop reflect, int value) { | |
| 2160 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2161 reflect->int_field_put(slot_offset, value); | |
| 2162 } | |
| 2163 | |
| 2164 int java_lang_reflect_Field::modifiers(oop field) { | |
| 2165 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2166 return field->int_field(modifiers_offset); | |
| 2167 } | |
| 2168 | |
| 2169 void java_lang_reflect_Field::set_modifiers(oop field, int value) { | |
| 2170 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2171 field->int_field_put(modifiers_offset, value); | |
| 2172 } | |
| 2173 | |
| 2174 bool java_lang_reflect_Field::has_signature_field() { | |
| 2175 return (signature_offset >= 0); | |
| 2176 } | |
| 2177 | |
| 2178 oop java_lang_reflect_Field::signature(oop field) { | |
| 2179 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2180 assert(has_signature_field(), "signature field must be present"); | |
| 2181 return field->obj_field(signature_offset); | |
| 2182 } | |
| 2183 | |
| 2184 void java_lang_reflect_Field::set_signature(oop field, oop value) { | |
| 2185 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2186 assert(has_signature_field(), "signature field must be present"); | |
| 2187 field->obj_field_put(signature_offset, value); | |
| 2188 } | |
| 2189 | |
| 2190 bool java_lang_reflect_Field::has_annotations_field() { | |
| 2191 return (annotations_offset >= 0); | |
| 2192 } | |
| 2193 | |
| 2194 oop java_lang_reflect_Field::annotations(oop field) { | |
| 2195 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2196 assert(has_annotations_field(), "annotations field must be present"); | |
| 2197 return field->obj_field(annotations_offset); | |
| 2198 } | |
| 2199 | |
| 2200 void java_lang_reflect_Field::set_annotations(oop field, oop value) { | |
| 2201 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2202 assert(has_annotations_field(), "annotations field must be present"); | |
| 2203 field->obj_field_put(annotations_offset, value); | |
| 2204 } | |
| 2205 | |
| 2206 | |
| 2207 void sun_reflect_ConstantPool::compute_offsets() { | |
|
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2208 Klass* k = SystemDictionary::reflect_ConstantPool_klass(); |
| 0 | 2209 // This null test can be removed post beta |
| 2210 if (k != NULL) { | |
|
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2211 // The field is called ConstantPool* in the sun.reflect.ConstantPool class. |
|
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2212 compute_offset(_oop_offset, k, vmSymbols::ConstantPool_name(), vmSymbols::object_signature()); |
| 0 | 2213 } |
| 2214 } | |
| 2215 | |
| 2216 | |
| 2217 Handle sun_reflect_ConstantPool::create(TRAPS) { | |
| 2218 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
|
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2219 Klass* k = SystemDictionary::reflect_ConstantPool_klass(); |
| 0 | 2220 instanceKlassHandle klass (THREAD, k); |
| 2221 // Ensure it is initialized | |
| 2222 klass->initialize(CHECK_NH); | |
| 2223 return klass->allocate_instance_handle(CHECK_NH); | |
| 2224 } | |
| 2225 | |
| 2226 | |
|
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2227 void sun_reflect_ConstantPool::set_cp(oop reflect, ConstantPool* value) { |
| 0 | 2228 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
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2229 oop mirror = value->pool_holder()->java_mirror(); |
|
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2230 // Save the mirror to get back the constant pool. |
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2231 reflect->obj_field_put(_oop_offset, mirror); |
| 0 | 2232 } |
| 2233 | |
|
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2234 ConstantPool* sun_reflect_ConstantPool::get_cp(oop reflect) { |
| 0 | 2235 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
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2236 |
|
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2237 oop mirror = reflect->obj_field(_oop_offset); |
|
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2238 Klass* k = java_lang_Class::as_Klass(mirror); |
|
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2239 assert(k->oop_is_instance(), "Must be"); |
|
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2240 |
|
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2241 // Get the constant pool back from the klass. Since class redefinition |
|
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2242 // merges the new constant pool into the old, this is essentially the |
|
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2243 // same constant pool as the original. If constant pool merging is |
|
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2244 // no longer done in the future, this will have to change to save |
|
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2245 // the original. |
|
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|
2246 return InstanceKlass::cast(k)->constants(); |
| 0 | 2247 } |
| 2248 | |
| 2249 void sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets() { | |
|
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2250 Klass* k = SystemDictionary::reflect_UnsafeStaticFieldAccessorImpl_klass(); |
| 0 | 2251 // This null test can be removed post beta |
| 2252 if (k != NULL) { | |
|
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2253 compute_offset(_base_offset, k, |
| 0 | 2254 vmSymbols::base_name(), vmSymbols::object_signature()); |
| 2255 } | |
| 2256 } | |
| 2257 | |
|
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2258 oop java_lang_boxing_object::initialize_and_allocate(BasicType type, TRAPS) { |
|
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2259 Klass* k = SystemDictionary::box_klass(type); |
|
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2260 if (k == NULL) return NULL; |
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|
2261 instanceKlassHandle h (THREAD, k); |
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2262 if (!h->is_initialized()) h->initialize(CHECK_0); |
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2263 return h->allocate_instance(THREAD); |
| 0 | 2264 } |
| 2265 | |
| 2266 | |
| 2267 oop java_lang_boxing_object::create(BasicType type, jvalue* value, TRAPS) { | |
|
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2268 oop box = initialize_and_allocate(type, CHECK_0); |
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|
2269 if (box == NULL) return NULL; |
| 0 | 2270 switch (type) { |
| 2271 case T_BOOLEAN: | |
| 2272 box->bool_field_put(value_offset, value->z); | |
| 2273 break; | |
| 2274 case T_CHAR: | |
| 2275 box->char_field_put(value_offset, value->c); | |
| 2276 break; | |
| 2277 case T_FLOAT: | |
| 2278 box->float_field_put(value_offset, value->f); | |
| 2279 break; | |
| 2280 case T_DOUBLE: | |
|
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2281 box->double_field_put(long_value_offset, value->d); |
| 0 | 2282 break; |
| 2283 case T_BYTE: | |
| 2284 box->byte_field_put(value_offset, value->b); | |
| 2285 break; | |
| 2286 case T_SHORT: | |
| 2287 box->short_field_put(value_offset, value->s); | |
| 2288 break; | |
| 2289 case T_INT: | |
| 2290 box->int_field_put(value_offset, value->i); | |
| 2291 break; | |
| 2292 case T_LONG: | |
|
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|
2293 box->long_field_put(long_value_offset, value->j); |
| 0 | 2294 break; |
| 2295 default: | |
| 2296 return NULL; | |
| 2297 } | |
| 2298 return box; | |
| 2299 } | |
| 2300 | |
| 2301 | |
|
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2302 BasicType java_lang_boxing_object::basic_type(oop box) { |
|
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2303 if (box == NULL) return T_ILLEGAL; |
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2304 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2305 if (type == T_OBJECT) // 'unknown' value returned by SD::bkt |
|
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|
2306 return T_ILLEGAL; |
|
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|
2307 return type; |
|
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|
2308 } |
|
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2309 |
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2310 |
| 0 | 2311 BasicType java_lang_boxing_object::get_value(oop box, jvalue* value) { |
|
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2312 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2313 switch (type) { |
|
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2314 case T_BOOLEAN: |
| 0 | 2315 value->z = box->bool_field(value_offset); |
|
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|
2316 break; |
|
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2317 case T_CHAR: |
| 0 | 2318 value->c = box->char_field(value_offset); |
|
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|
2319 break; |
|
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|
2320 case T_FLOAT: |
| 0 | 2321 value->f = box->float_field(value_offset); |
|
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|
2322 break; |
|
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|
2323 case T_DOUBLE: |
|
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2324 value->d = box->double_field(long_value_offset); |
|
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|
2325 break; |
|
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|
2326 case T_BYTE: |
| 0 | 2327 value->b = box->byte_field(value_offset); |
|
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|
2328 break; |
|
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|
2329 case T_SHORT: |
| 0 | 2330 value->s = box->short_field(value_offset); |
|
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|
2331 break; |
|
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|
2332 case T_INT: |
| 0 | 2333 value->i = box->int_field(value_offset); |
|
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|
2334 break; |
|
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|
2335 case T_LONG: |
|
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2336 value->j = box->long_field(long_value_offset); |
|
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|
2337 break; |
|
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|
2338 default: |
|
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|
2339 return T_ILLEGAL; |
|
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|
2340 } // end switch |
|
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|
2341 return type; |
| 0 | 2342 } |
| 2343 | |
| 2344 | |
| 2345 BasicType java_lang_boxing_object::set_value(oop box, jvalue* value) { | |
|
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2346 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
|
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|
2347 switch (type) { |
|
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|
2348 case T_BOOLEAN: |
| 0 | 2349 box->bool_field_put(value_offset, value->z); |
|
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|
2350 break; |
|
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|
2351 case T_CHAR: |
| 0 | 2352 box->char_field_put(value_offset, value->c); |
|
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|
2353 break; |
|
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|
2354 case T_FLOAT: |
| 0 | 2355 box->float_field_put(value_offset, value->f); |
|
132
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|
2356 break; |
|
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|
2357 case T_DOUBLE: |
|
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2358 box->double_field_put(long_value_offset, value->d); |
|
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|
2359 break; |
|
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|
2360 case T_BYTE: |
| 0 | 2361 box->byte_field_put(value_offset, value->b); |
|
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|
2362 break; |
|
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|
2363 case T_SHORT: |
| 0 | 2364 box->short_field_put(value_offset, value->s); |
|
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|
2365 break; |
|
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|
2366 case T_INT: |
| 0 | 2367 box->int_field_put(value_offset, value->i); |
|
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|
2368 break; |
|
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|
2369 case T_LONG: |
|
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|
2370 box->long_field_put(long_value_offset, value->j); |
|
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|
2371 break; |
|
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|
2372 default: |
|
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|
2373 return T_ILLEGAL; |
|
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|
2374 } // end switch |
|
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|
2375 return type; |
| 0 | 2376 } |
| 2377 | |
| 2378 | |
|
665
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|
2379 void java_lang_boxing_object::print(BasicType type, jvalue* value, outputStream* st) { |
|
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|
2380 switch (type) { |
|
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|
2381 case T_BOOLEAN: st->print("%s", value->z ? "true" : "false"); break; |
|
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|
2382 case T_CHAR: st->print("%d", value->c); break; |
|
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|
2383 case T_BYTE: st->print("%d", value->b); break; |
|
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|
2384 case T_SHORT: st->print("%d", value->s); break; |
|
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|
2385 case T_INT: st->print("%d", value->i); break; |
|
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|
2386 case T_LONG: st->print(INT64_FORMAT, value->j); break; |
|
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|
2387 case T_FLOAT: st->print("%f", value->f); break; |
|
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changeset
|
2388 case T_DOUBLE: st->print("%lf", value->d); break; |
|
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|
2389 default: st->print("type %d?", type); break; |
|
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|
2390 } |
|
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|
2391 } |
|
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|
2392 |
|
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|
2393 |
| 0 | 2394 // Support for java_lang_ref_Reference |
|
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|
2395 HeapWord *java_lang_ref_Reference::pending_list_lock_addr() { |
|
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|
2396 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Reference_klass()); |
|
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|
2397 address addr = ik->static_field_addr(static_lock_offset); |
|
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2398 return (HeapWord*) addr; |
|
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|
2399 } |
|
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|
2400 |
|
113
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|
2401 oop java_lang_ref_Reference::pending_list_lock() { |
|
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|
2402 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Reference_klass()); |
|
2376
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|
2403 address addr = ik->static_field_addr(static_lock_offset); |
|
113
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|
2404 if (UseCompressedOops) { |
|
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|
2405 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
|
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|
2406 } else { |
|
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|
2407 return oopDesc::load_decode_heap_oop((oop*)addr); |
|
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|
2408 } |
| 0 | 2409 } |
| 2410 | |
|
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|
2411 HeapWord *java_lang_ref_Reference::pending_list_addr() { |
|
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|
2412 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Reference_klass()); |
|
2376
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|
2413 address addr = ik->static_field_addr(static_pending_offset); |
|
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|
2414 // XXX This might not be HeapWord aligned, almost rather be char *. |
|
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|
2415 return (HeapWord*)addr; |
| 0 | 2416 } |
| 2417 | |
|
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|
2418 oop java_lang_ref_Reference::pending_list() { |
|
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|
2419 char *addr = (char *)pending_list_addr(); |
|
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|
2420 if (UseCompressedOops) { |
|
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|
2421 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
|
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|
2422 } else { |
|
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|
2423 return oopDesc::load_decode_heap_oop((oop*)addr); |
|
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|
2424 } |
| 0 | 2425 } |
| 2426 | |
| 2427 | |
| 2428 // Support for java_lang_ref_SoftReference | |
| 2429 | |
| 2430 jlong java_lang_ref_SoftReference::timestamp(oop ref) { | |
| 2431 return ref->long_field(timestamp_offset); | |
| 2432 } | |
| 2433 | |
| 2434 jlong java_lang_ref_SoftReference::clock() { | |
|
6725
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changeset
|
2435 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::SoftReference_klass()); |
|
2376
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|
2436 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
|
c7f3d0b4570f
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diff
changeset
|
2437 return *offset; |
| 0 | 2438 } |
| 2439 | |
| 2440 void java_lang_ref_SoftReference::set_clock(jlong value) { | |
|
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|
2441 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::SoftReference_klass()); |
|
2376
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|
2442 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
|
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changeset
|
2443 *offset = value; |
| 0 | 2444 } |
| 2445 | |
| 2446 | |
|
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8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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changeset
|
2447 // Support for java_lang_invoke_MethodHandle |
|
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
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|
2448 |
|
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diff
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|
2449 int java_lang_invoke_MethodHandle::_type_offset; |
|
6266
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|
2450 int java_lang_invoke_MethodHandle::_form_offset; |
|
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diff
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|
2451 |
|
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2452 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
|
2453 int java_lang_invoke_MemberName::_name_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2454 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
|
2455 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
|
2456 int java_lang_invoke_MemberName::_vmtarget_offset; |
|
6725
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changeset
|
2457 int java_lang_invoke_MemberName::_vmloader_offset; |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2458 int java_lang_invoke_MemberName::_vmindex_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2459 |
|
6266
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diff
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|
2460 int java_lang_invoke_LambdaForm::_vmentry_offset; |
|
3905
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3900
diff
changeset
|
2461 |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2462 void java_lang_invoke_MethodHandle::compute_offsets() { |
|
6725
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changeset
|
2463 Klass* klass_oop = SystemDictionary::MethodHandle_klass(); |
| 3938 | 2464 if (klass_oop != NULL && EnableInvokeDynamic) { |
|
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
|
2465 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
|
2466 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
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diff
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|
2467 if (_form_offset == 0) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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6224
diff
changeset
|
2468 EnableInvokeDynamic = false; |
|
1d7922586cf6
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6224
diff
changeset
|
2469 } |
| 710 | 2470 } |
| 2471 } | |
| 2472 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2473 void java_lang_invoke_MemberName::compute_offsets() { |
|
6725
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changeset
|
2474 Klass* klass_oop = SystemDictionary::MemberName_klass(); |
| 3938 | 2475 if (klass_oop != NULL && EnableInvokeDynamic) { |
| 2476 compute_offset(_clazz_offset, klass_oop, vmSymbols::clazz_name(), vmSymbols::class_signature()); | |
| 2477 compute_offset(_name_offset, klass_oop, vmSymbols::name_name(), vmSymbols::string_signature()); | |
| 2478 compute_offset(_type_offset, klass_oop, vmSymbols::type_name(), vmSymbols::object_signature()); | |
| 2479 compute_offset(_flags_offset, klass_oop, vmSymbols::flags_name(), vmSymbols::int_signature()); | |
| 2480 MEMBERNAME_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
| 710 | 2481 } |
| 2482 } | |
| 2483 | |
|
6266
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6224
diff
changeset
|
2484 void java_lang_invoke_LambdaForm::compute_offsets() { |
|
6725
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changeset
|
2485 Klass* klass_oop = SystemDictionary::LambdaForm_klass(); |
|
6266
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diff
changeset
|
2486 if (klass_oop != NULL && EnableInvokeDynamic) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff
changeset
|
2487 compute_offset(_vmentry_offset, klass_oop, vmSymbols::vmentry_name(), vmSymbols::java_lang_invoke_MemberName_signature()); |
| 710 | 2488 } |
| 2489 } | |
| 2490 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2491 oop java_lang_invoke_MethodHandle::type(oop mh) { |
| 710 | 2492 return mh->obj_field(_type_offset); |
| 2493 } | |
| 2494 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2495 void java_lang_invoke_MethodHandle::set_type(oop mh, oop mtype) { |
| 710 | 2496 mh->obj_field_put(_type_offset, mtype); |
| 2497 } | |
| 2498 | |
|
6266
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|
2499 oop java_lang_invoke_MethodHandle::form(oop mh) { |
|
1d7922586cf6
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diff
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|
2500 assert(_form_offset != 0, ""); |
|
1d7922586cf6
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diff
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|
2501 return mh->obj_field(_form_offset); |
| 710 | 2502 } |
| 2503 | |
|
6266
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|
2504 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
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diff
changeset
|
2505 assert(_form_offset != 0, ""); |
|
1d7922586cf6
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diff
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|
2506 mh->obj_field_put(_form_offset, lform); |
| 710 | 2507 } |
| 2508 | |
| 2509 /// MemberName accessors | |
| 2510 | |
|
2357
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diff
changeset
|
2511 oop java_lang_invoke_MemberName::clazz(oop mname) { |
| 710 | 2512 assert(is_instance(mname), "wrong type"); |
| 2513 return mname->obj_field(_clazz_offset); | |
| 2514 } | |
| 2515 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
changeset
|
2516 void java_lang_invoke_MemberName::set_clazz(oop mname, oop clazz) { |
| 710 | 2517 assert(is_instance(mname), "wrong type"); |
| 2518 mname->obj_field_put(_clazz_offset, clazz); | |
| 2519 } | |
| 2520 | |
|
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diff
changeset
|
2521 oop java_lang_invoke_MemberName::name(oop mname) { |
| 710 | 2522 assert(is_instance(mname), "wrong type"); |
| 2523 return mname->obj_field(_name_offset); | |
| 2524 } | |
| 2525 | |
|
2357
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diff
changeset
|
2526 void java_lang_invoke_MemberName::set_name(oop mname, oop name) { |
| 710 | 2527 assert(is_instance(mname), "wrong type"); |
| 2528 mname->obj_field_put(_name_offset, name); | |
| 2529 } | |
| 2530 | |
|
2357
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2356
diff
changeset
|
2531 oop java_lang_invoke_MemberName::type(oop mname) { |
| 710 | 2532 assert(is_instance(mname), "wrong type"); |
| 2533 return mname->obj_field(_type_offset); | |
| 2534 } | |
| 2535 | |
|
2357
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2356
diff
changeset
|
2536 void java_lang_invoke_MemberName::set_type(oop mname, oop type) { |
| 710 | 2537 assert(is_instance(mname), "wrong type"); |
| 2538 mname->obj_field_put(_type_offset, type); | |
| 2539 } | |
| 2540 | |
|
2357
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diff
changeset
|
2541 int java_lang_invoke_MemberName::flags(oop mname) { |
| 710 | 2542 assert(is_instance(mname), "wrong type"); |
| 2543 return mname->int_field(_flags_offset); | |
| 2544 } | |
| 2545 | |
|
2357
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2356
diff
changeset
|
2546 void java_lang_invoke_MemberName::set_flags(oop mname, int flags) { |
| 710 | 2547 assert(is_instance(mname), "wrong type"); |
| 2548 mname->int_field_put(_flags_offset, flags); | |
| 2549 } | |
| 2550 | |
|
6725
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|
2551 Metadata* java_lang_invoke_MemberName::vmtarget(oop mname) { |
| 710 | 2552 assert(is_instance(mname), "wrong type"); |
|
6725
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|
2553 return (Metadata*)mname->address_field(_vmtarget_offset); |
| 710 | 2554 } |
| 2555 | |
|
6725
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|
2556 void java_lang_invoke_MemberName::set_vmtarget(oop mname, Metadata* ref) { |
| 710 | 2557 assert(is_instance(mname), "wrong type"); |
|
6266
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diff
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|
2558 #ifdef ASSERT |
|
1d7922586cf6
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6224
diff
changeset
|
2559 // check the type of the vmtarget |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2560 if (ref != NULL) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2561 switch (flags(mname) & (MN_IS_METHOD | |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2562 MN_IS_CONSTRUCTOR | |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2563 MN_IS_FIELD)) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2564 case MN_IS_METHOD: |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2565 case MN_IS_CONSTRUCTOR: |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2566 assert(ref->is_method(), "should be a method"); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2567 break; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2568 case MN_IS_FIELD: |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2569 assert(ref->is_klass(), "should be a class"); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2570 break; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2571 default: |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2572 ShouldNotReachHere(); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2573 } |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2574 } |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2575 #endif //ASSERT |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2576 mname->address_field_put(_vmtarget_offset, (address)ref); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2577 oop loader = NULL; |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2578 if (ref != NULL) { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2579 if (ref->is_klass()) { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2580 loader = ((Klass*)ref)->class_loader(); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2581 } else if (ref->is_method()) { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2582 loader = ((Method*)ref)->method_holder()->class_loader(); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2583 } else { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2584 ShouldNotReachHere(); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2585 } |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2586 } |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2587 // Add a reference to the loader to ensure the metadata is kept alive |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2588 mname->obj_field_put(_vmloader_offset, loader); |
| 710 | 2589 } |
| 2590 | |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2591 intptr_t java_lang_invoke_MemberName::vmindex(oop mname) { |
| 710 | 2592 assert(is_instance(mname), "wrong type"); |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2593 return (intptr_t) mname->address_field(_vmindex_offset); |
| 710 | 2594 } |
| 2595 | |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2596 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
twisti
parents:
6224
diff
changeset
|
2597 assert(is_instance(mname), "wrong type"); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2598 mname->address_field_put(_vmindex_offset, (address) index); |
| 710 | 2599 } |
| 2600 | |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2601 oop java_lang_invoke_LambdaForm::vmentry(oop lform) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2602 assert(is_instance(lform), "wrong type"); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2603 return lform->obj_field(_vmentry_offset); |
| 710 | 2604 } |
| 2605 | |
| 2606 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2607 // Support for java_lang_invoke_MethodType |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2608 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2609 int java_lang_invoke_MethodType::_rtype_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2610 int java_lang_invoke_MethodType::_ptypes_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2611 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2612 void java_lang_invoke_MethodType::compute_offsets() { |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2613 Klass* k = SystemDictionary::MethodType_klass(); |
| 710 | 2614 if (k != NULL) { |
| 2615 compute_offset(_rtype_offset, k, vmSymbols::rtype_name(), vmSymbols::class_signature()); | |
| 2616 compute_offset(_ptypes_offset, k, vmSymbols::ptypes_name(), vmSymbols::class_array_signature()); | |
| 2617 } | |
| 2618 } | |
| 2619 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2620 void java_lang_invoke_MethodType::print_signature(oop mt, outputStream* st) { |
| 710 | 2621 st->print("("); |
| 2622 objArrayOop pts = ptypes(mt); | |
| 2623 for (int i = 0, limit = pts->length(); i < limit; i++) { | |
| 2624 java_lang_Class::print_signature(pts->obj_at(i), st); | |
| 2625 } | |
| 2626 st->print(")"); | |
| 2627 java_lang_Class::print_signature(rtype(mt), st); | |
| 2628 } | |
| 2629 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2630 Symbol* java_lang_invoke_MethodType::as_signature(oop mt, bool intern_if_not_found, TRAPS) { |
| 710 | 2631 ResourceMark rm; |
| 2632 stringStream buffer(128); | |
| 2633 print_signature(mt, &buffer); | |
| 2634 const char* sigstr = buffer.base(); | |
| 2635 int siglen = (int) buffer.size(); | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2636 Symbol *name; |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2637 if (!intern_if_not_found) { |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2638 name = SymbolTable::probe(sigstr, siglen); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2639 } else { |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2640 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2641 } |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2642 return name; |
| 710 | 2643 } |
| 2644 | |
|
3785
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2645 bool java_lang_invoke_MethodType::equals(oop mt1, oop mt2) { |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2646 if (mt1 == mt2) |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2647 return true; |
|
3785
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2648 if (rtype(mt1) != rtype(mt2)) |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2649 return false; |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2650 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
|
2651 return false; |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2652 for (int i = ptype_count(mt1) - 1; i >= 0; i--) { |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2653 if (ptype(mt1, i) != ptype(mt2, i)) |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2654 return false; |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2655 } |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2656 return true; |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2657 } |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2658 |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2659 oop java_lang_invoke_MethodType::rtype(oop mt) { |
| 710 | 2660 assert(is_instance(mt), "must be a MethodType"); |
| 2661 return mt->obj_field(_rtype_offset); | |
| 2662 } | |
| 2663 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2664 objArrayOop java_lang_invoke_MethodType::ptypes(oop mt) { |
| 710 | 2665 assert(is_instance(mt), "must be a MethodType"); |
| 2666 return (objArrayOop) mt->obj_field(_ptypes_offset); | |
| 2667 } | |
| 2668 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2669 oop java_lang_invoke_MethodType::ptype(oop mt, int idx) { |
| 710 | 2670 return ptypes(mt)->obj_at(idx); |
| 2671 } | |
| 2672 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2673 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
|
2674 return ptypes(mt)->length(); |
|
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
twisti
parents:
1096
diff
changeset
|
2675 } |
|
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
twisti
parents:
1096
diff
changeset
|
2676 |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2677 int java_lang_invoke_MethodType::ptype_slot_count(oop mt) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2678 objArrayOop pts = ptypes(mt); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2679 int count = pts->length(); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2680 int slots = 0; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2681 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
|
2682 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
|
2683 slots += type2size[bt]; |
| 710 | 2684 } |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2685 return slots; |
| 710 | 2686 } |
| 2687 | |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2688 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
|
2689 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
|
2690 return type2size[bt]; |
|
1793
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2691 } |
|
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2692 |
| 710 | 2693 |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2694 // Support for java_lang_invoke_CallSite |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2695 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2696 int java_lang_invoke_CallSite::_target_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2697 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2698 void java_lang_invoke_CallSite::compute_offsets() { |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2699 if (!EnableInvokeDynamic) return; |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2700 Klass* k = SystemDictionary::CallSite_klass(); |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2701 if (k != NULL) { |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2702 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
|
2703 } |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2704 } |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2705 |
| 710 | 2706 |
| 0 | 2707 // Support for java_security_AccessControlContext |
| 2708 | |
| 2709 int java_security_AccessControlContext::_context_offset = 0; | |
| 2710 int java_security_AccessControlContext::_privilegedContext_offset = 0; | |
| 2711 int java_security_AccessControlContext::_isPrivileged_offset = 0; | |
| 2712 | |
| 2713 void java_security_AccessControlContext::compute_offsets() { | |
| 2714 assert(_isPrivileged_offset == 0, "offsets should be initialized only once"); | |
| 2715 fieldDescriptor fd; | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2716 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::AccessControlContext_klass()); |
| 0 | 2717 |
| 2718 if (!ik->find_local_field(vmSymbols::context_name(), vmSymbols::protectiondomain_signature(), &fd)) { | |
| 2719 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2720 } | |
| 2721 _context_offset = fd.offset(); | |
| 2722 | |
| 2723 if (!ik->find_local_field(vmSymbols::privilegedContext_name(), vmSymbols::accesscontrolcontext_signature(), &fd)) { | |
| 2724 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2725 } | |
| 2726 _privilegedContext_offset = fd.offset(); | |
| 2727 | |
| 2728 if (!ik->find_local_field(vmSymbols::isPrivileged_name(), vmSymbols::bool_signature(), &fd)) { | |
| 2729 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2730 } | |
| 2731 _isPrivileged_offset = fd.offset(); | |
| 2732 } | |
| 2733 | |
| 2734 | |
| 2735 oop java_security_AccessControlContext::create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS) { | |
| 2736 assert(_isPrivileged_offset != 0, "offsets should have been initialized"); | |
| 2737 // Ensure klass is initialized | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2738 InstanceKlass::cast(SystemDictionary::AccessControlContext_klass())->initialize(CHECK_0); |
| 0 | 2739 // Allocate result |
|
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2740 oop result = InstanceKlass::cast(SystemDictionary::AccessControlContext_klass())->allocate_instance(CHECK_0); |
| 0 | 2741 // Fill in values |
| 2742 result->obj_field_put(_context_offset, context()); | |
| 2743 result->obj_field_put(_privilegedContext_offset, privileged_context()); | |
| 2744 result->bool_field_put(_isPrivileged_offset, isPrivileged); | |
| 2745 return result; | |
| 2746 } | |
| 2747 | |
| 2748 | |
| 2749 // Support for java_lang_ClassLoader | |
|
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2750 |
| 3938 | 2751 bool java_lang_ClassLoader::offsets_computed = false; |
|
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2752 int java_lang_ClassLoader::_loader_data_offset = -1; |
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2753 int java_lang_ClassLoader::_dependencies_offset = -1; |
| 3938 | 2754 int java_lang_ClassLoader::parallelCapable_offset = -1; |
| 2755 | |
|
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2756 ClassLoaderData** java_lang_ClassLoader::loader_data_addr(oop loader) { |
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2757 assert(loader != NULL && loader->is_oop(), "loader must be oop"); |
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2758 return (ClassLoaderData**) loader->address_field_addr(_loader_data_offset); |
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2759 } |
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2760 |
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2761 ClassLoaderData* java_lang_ClassLoader::loader_data(oop loader) { |
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2762 return *java_lang_ClassLoader::loader_data_addr(loader); |
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2763 } |
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2764 |
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2765 oop java_lang_ClassLoader::dependencies(oop loader) { |
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2766 return loader->obj_field(_dependencies_offset); |
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2767 } |
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2768 |
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2769 HeapWord* java_lang_ClassLoader::dependencies_addr(oop loader) { |
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2770 if (UseCompressedOops) { |
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2771 return (HeapWord*)loader->obj_field_addr<narrowOop>(_dependencies_offset); |
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2772 } else { |
|
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2773 return (HeapWord*)loader->obj_field_addr<oop>(_dependencies_offset); |
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2774 } |
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2775 } |
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2776 |
| 3938 | 2777 void java_lang_ClassLoader::compute_offsets() { |
| 2778 assert(!offsets_computed, "offsets should be initialized only once"); | |
| 2779 offsets_computed = true; | |
| 2780 | |
| 2781 // The field indicating parallelCapable (parallelLockMap) is only present starting in 7, | |
|
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2782 Klass* k1 = SystemDictionary::ClassLoader_klass(); |
| 3938 | 2783 compute_optional_offset(parallelCapable_offset, |
| 2784 k1, vmSymbols::parallelCapable_name(), vmSymbols::concurrenthashmap_signature()); | |
|
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2785 |
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2786 CLASSLOADER_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); |
| 3938 | 2787 } |
| 0 | 2788 |
| 2789 oop java_lang_ClassLoader::parent(oop loader) { | |
|
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2790 assert(is_instance(loader), "loader must be oop"); |
| 0 | 2791 return loader->obj_field(parent_offset); |
| 2792 } | |
| 2793 | |
|
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2794 bool java_lang_ClassLoader::isAncestor(oop loader, oop cl) { |
|
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2795 assert(is_instance(loader), "loader must be oop"); |
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2796 assert(cl == NULL || is_instance(cl), "cl argument must be oop"); |
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2797 oop acl = loader; |
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2798 debug_only(jint loop_count = 0); |
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2799 // This loop taken verbatim from ClassLoader.java: |
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2800 do { |
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2801 acl = parent(acl); |
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2802 if (cl == acl) { |
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2803 return true; |
|
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2804 } |
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2805 assert(++loop_count > 0, "loop_count overflow"); |
|
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2806 } while (acl != NULL); |
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2807 return false; |
|
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2808 } |
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2809 |
| 0 | 2810 |
| 3938 | 2811 // For class loader classes, parallelCapable defined |
| 2812 // based on non-null field | |
| 2813 // Written to by java.lang.ClassLoader, vm only reads this field, doesn't set it | |
| 2814 bool java_lang_ClassLoader::parallelCapable(oop class_loader) { | |
| 2815 if (!JDK_Version::is_gte_jdk17x_version() | |
| 2816 || parallelCapable_offset == -1) { | |
| 2817 // Default for backward compatibility is false | |
| 2818 return false; | |
| 2819 } | |
| 2820 return (class_loader->obj_field(parallelCapable_offset) != NULL); | |
| 2821 } | |
| 2822 | |
| 0 | 2823 bool java_lang_ClassLoader::is_trusted_loader(oop loader) { |
| 2824 // Fix for 4474172; see evaluation for more details | |
| 2825 loader = non_reflection_class_loader(loader); | |
| 2826 | |
| 2827 oop cl = SystemDictionary::java_system_loader(); | |
| 2828 while(cl != NULL) { | |
| 2829 if (cl == loader) return true; | |
| 2830 cl = parent(cl); | |
| 2831 } | |
| 2832 return false; | |
| 2833 } | |
| 2834 | |
| 2835 oop java_lang_ClassLoader::non_reflection_class_loader(oop loader) { | |
| 2836 if (loader != NULL) { | |
| 2837 // See whether this is one of the class loaders associated with | |
| 2838 // the generated bytecodes for reflection, and if so, "magically" | |
| 2839 // delegate to its parent to prevent class loading from occurring | |
| 2840 // in places where applications using reflection didn't expect it. | |
|
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2841 Klass* delegating_cl_class = SystemDictionary::reflect_DelegatingClassLoader_klass(); |
| 0 | 2842 // This might be null in non-1.4 JDKs |
| 2843 if (delegating_cl_class != NULL && loader->is_a(delegating_cl_class)) { | |
| 2844 return parent(loader); | |
| 2845 } | |
| 2846 } | |
| 2847 return loader; | |
| 2848 } | |
| 2849 | |
| 2850 | |
| 2851 // Support for java_lang_System | |
| 2852 int java_lang_System::in_offset_in_bytes() { | |
|
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2853 return (InstanceMirrorKlass::offset_of_static_fields() + static_in_offset); |
| 0 | 2854 } |
| 2855 | |
| 2856 | |
| 2857 int java_lang_System::out_offset_in_bytes() { | |
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2858 return (InstanceMirrorKlass::offset_of_static_fields() + static_out_offset); |
| 0 | 2859 } |
| 2860 | |
| 2861 | |
| 2862 int java_lang_System::err_offset_in_bytes() { | |
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2863 return (InstanceMirrorKlass::offset_of_static_fields() + static_err_offset); |
| 0 | 2864 } |
| 2865 | |
| 2866 | |
| 2867 | |
| 3938 | 2868 int java_lang_Class::_klass_offset; |
| 2869 int java_lang_Class::_array_klass_offset; | |
| 2870 int java_lang_Class::_resolved_constructor_offset; | |
| 2871 int java_lang_Class::_oop_size_offset; | |
| 2872 int java_lang_Class::_static_oop_field_count_offset; | |
|
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2873 GrowableArray<Klass*>* java_lang_Class::_fixup_mirror_list = NULL; |
| 0 | 2874 int java_lang_Throwable::backtrace_offset; |
| 2875 int java_lang_Throwable::detailMessage_offset; | |
| 2876 int java_lang_Throwable::cause_offset; | |
| 2877 int java_lang_Throwable::stackTrace_offset; | |
|
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2878 int java_lang_Throwable::static_unassigned_stacktrace_offset; |
| 0 | 2879 int java_lang_reflect_AccessibleObject::override_offset; |
| 2880 int java_lang_reflect_Method::clazz_offset; | |
| 2881 int java_lang_reflect_Method::name_offset; | |
| 2882 int java_lang_reflect_Method::returnType_offset; | |
| 2883 int java_lang_reflect_Method::parameterTypes_offset; | |
| 2884 int java_lang_reflect_Method::exceptionTypes_offset; | |
| 2885 int java_lang_reflect_Method::slot_offset; | |
| 2886 int java_lang_reflect_Method::modifiers_offset; | |
| 2887 int java_lang_reflect_Method::signature_offset; | |
| 2888 int java_lang_reflect_Method::annotations_offset; | |
| 2889 int java_lang_reflect_Method::parameter_annotations_offset; | |
| 2890 int java_lang_reflect_Method::annotation_default_offset; | |
| 2891 int java_lang_reflect_Constructor::clazz_offset; | |
| 2892 int java_lang_reflect_Constructor::parameterTypes_offset; | |
| 2893 int java_lang_reflect_Constructor::exceptionTypes_offset; | |
| 2894 int java_lang_reflect_Constructor::slot_offset; | |
| 2895 int java_lang_reflect_Constructor::modifiers_offset; | |
| 2896 int java_lang_reflect_Constructor::signature_offset; | |
| 2897 int java_lang_reflect_Constructor::annotations_offset; | |
| 2898 int java_lang_reflect_Constructor::parameter_annotations_offset; | |
| 2899 int java_lang_reflect_Field::clazz_offset; | |
| 2900 int java_lang_reflect_Field::name_offset; | |
| 2901 int java_lang_reflect_Field::type_offset; | |
| 2902 int java_lang_reflect_Field::slot_offset; | |
| 2903 int java_lang_reflect_Field::modifiers_offset; | |
| 2904 int java_lang_reflect_Field::signature_offset; | |
| 2905 int java_lang_reflect_Field::annotations_offset; | |
| 2906 int java_lang_boxing_object::value_offset; | |
|
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2907 int java_lang_boxing_object::long_value_offset; |
| 0 | 2908 int java_lang_ref_Reference::referent_offset; |
| 2909 int java_lang_ref_Reference::queue_offset; | |
| 2910 int java_lang_ref_Reference::next_offset; | |
| 2911 int java_lang_ref_Reference::discovered_offset; | |
| 2912 int java_lang_ref_Reference::static_lock_offset; | |
| 2913 int java_lang_ref_Reference::static_pending_offset; | |
| 2914 int java_lang_ref_Reference::number_of_fake_oop_fields; | |
| 2915 int java_lang_ref_SoftReference::timestamp_offset; | |
| 2916 int java_lang_ref_SoftReference::static_clock_offset; | |
| 2917 int java_lang_ClassLoader::parent_offset; | |
| 2918 int java_lang_System::static_in_offset; | |
| 2919 int java_lang_System::static_out_offset; | |
| 2920 int java_lang_System::static_err_offset; | |
| 2921 int java_lang_StackTraceElement::declaringClass_offset; | |
| 2922 int java_lang_StackTraceElement::methodName_offset; | |
| 2923 int java_lang_StackTraceElement::fileName_offset; | |
| 2924 int java_lang_StackTraceElement::lineNumber_offset; | |
| 2925 int java_lang_AssertionStatusDirectives::classes_offset; | |
| 2926 int java_lang_AssertionStatusDirectives::classEnabled_offset; | |
| 2927 int java_lang_AssertionStatusDirectives::packages_offset; | |
| 2928 int java_lang_AssertionStatusDirectives::packageEnabled_offset; | |
| 2929 int java_lang_AssertionStatusDirectives::deflt_offset; | |
| 2930 int java_nio_Buffer::_limit_offset; | |
| 2931 int java_util_concurrent_locks_AbstractOwnableSynchronizer::_owner_offset = 0; | |
|
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2932 int sun_reflect_ConstantPool::_oop_offset; |
| 0 | 2933 int sun_reflect_UnsafeStaticFieldAccessorImpl::_base_offset; |
| 2934 | |
| 2935 | |
| 2936 // Support for java_lang_StackTraceElement | |
| 2937 | |
| 2938 void java_lang_StackTraceElement::set_fileName(oop element, oop value) { | |
| 2939 element->obj_field_put(fileName_offset, value); | |
| 2940 } | |
| 2941 | |
| 2942 void java_lang_StackTraceElement::set_declaringClass(oop element, oop value) { | |
| 2943 element->obj_field_put(declaringClass_offset, value); | |
| 2944 } | |
| 2945 | |
| 2946 void java_lang_StackTraceElement::set_methodName(oop element, oop value) { | |
| 2947 element->obj_field_put(methodName_offset, value); | |
| 2948 } | |
| 2949 | |
| 2950 void java_lang_StackTraceElement::set_lineNumber(oop element, int value) { | |
| 2951 element->int_field_put(lineNumber_offset, value); | |
| 2952 } | |
| 2953 | |
| 2954 | |
| 2955 // Support for java Assertions - java_lang_AssertionStatusDirectives. | |
| 2956 | |
| 2957 void java_lang_AssertionStatusDirectives::set_classes(oop o, oop val) { | |
| 2958 o->obj_field_put(classes_offset, val); | |
| 2959 } | |
| 2960 | |
| 2961 void java_lang_AssertionStatusDirectives::set_classEnabled(oop o, oop val) { | |
| 2962 o->obj_field_put(classEnabled_offset, val); | |
| 2963 } | |
| 2964 | |
| 2965 void java_lang_AssertionStatusDirectives::set_packages(oop o, oop val) { | |
| 2966 o->obj_field_put(packages_offset, val); | |
| 2967 } | |
| 2968 | |
| 2969 void java_lang_AssertionStatusDirectives::set_packageEnabled(oop o, oop val) { | |
| 2970 o->obj_field_put(packageEnabled_offset, val); | |
| 2971 } | |
| 2972 | |
| 2973 void java_lang_AssertionStatusDirectives::set_deflt(oop o, bool val) { | |
| 2974 o->bool_field_put(deflt_offset, val); | |
| 2975 } | |
| 2976 | |
| 2977 | |
| 2978 // Support for intrinsification of java.nio.Buffer.checkIndex | |
| 2979 int java_nio_Buffer::limit_offset() { | |
| 2980 return _limit_offset; | |
| 2981 } | |
| 2982 | |
| 2983 | |
| 2984 void java_nio_Buffer::compute_offsets() { | |
|
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2985 Klass* k = SystemDictionary::nio_Buffer_klass(); |
|
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2986 assert(k != NULL, "must be loaded in 1.4+"); |
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2987 compute_offset(_limit_offset, k, vmSymbols::limit_name(), vmSymbols::int_signature()); |
| 0 | 2988 } |
| 2989 | |
| 2990 void java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(TRAPS) { | |
| 2991 if (_owner_offset != 0) return; | |
| 2992 | |
| 2993 assert(JDK_Version::is_gte_jdk16x_version(), "Must be JDK 1.6 or later"); | |
| 2994 SystemDictionary::load_abstract_ownable_synchronizer_klass(CHECK); | |
|
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2995 Klass* k = SystemDictionary::abstract_ownable_synchronizer_klass(); |
|
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2996 compute_offset(_owner_offset, k, |
| 0 | 2997 vmSymbols::exclusive_owner_thread_name(), vmSymbols::thread_signature()); |
| 2998 } | |
| 2999 | |
| 3000 oop java_util_concurrent_locks_AbstractOwnableSynchronizer::get_owner_threadObj(oop obj) { | |
| 3001 assert(_owner_offset != 0, "Must be initialized"); | |
| 3002 return obj->obj_field(_owner_offset); | |
| 3003 } | |
| 3004 | |
| 3005 // Compute hard-coded offsets | |
| 3006 // Invoked before SystemDictionary::initialize, so pre-loaded classes | |
| 3007 // are not available to determine the offset_of_static_fields. | |
| 3008 void JavaClasses::compute_hard_coded_offsets() { | |
|
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3009 const int x = heapOopSize; |
|
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3010 const int header = instanceOopDesc::base_offset_in_bytes(); |
| 0 | 3011 |
| 3012 // Throwable Class | |
| 3013 java_lang_Throwable::backtrace_offset = java_lang_Throwable::hc_backtrace_offset * x + header; | |
| 3014 java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header; | |
| 3015 java_lang_Throwable::cause_offset = java_lang_Throwable::hc_cause_offset * x + header; | |
| 3016 java_lang_Throwable::stackTrace_offset = java_lang_Throwable::hc_stackTrace_offset * x + header; | |
|
3820
0b80db433fcb
7046490: Preallocated OOME objects should obey Throwable stack trace protocol
dholmes
parents:
3795
diff
changeset
|
3017 java_lang_Throwable::static_unassigned_stacktrace_offset = java_lang_Throwable::hc_static_unassigned_stacktrace_offset * x; |
| 0 | 3018 |
| 3019 // java_lang_boxing_object | |
|
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
3020 java_lang_boxing_object::value_offset = java_lang_boxing_object::hc_value_offset + header; |
|
437d03ea40b1
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diff
changeset
|
3021 java_lang_boxing_object::long_value_offset = align_size_up((java_lang_boxing_object::hc_value_offset + header), BytesPerLong); |
| 0 | 3022 |
| 3023 // java_lang_ref_Reference: | |
| 3024 java_lang_ref_Reference::referent_offset = java_lang_ref_Reference::hc_referent_offset * x + header; | |
| 3025 java_lang_ref_Reference::queue_offset = java_lang_ref_Reference::hc_queue_offset * x + header; | |
| 3026 java_lang_ref_Reference::next_offset = java_lang_ref_Reference::hc_next_offset * x + header; | |
| 3027 java_lang_ref_Reference::discovered_offset = java_lang_ref_Reference::hc_discovered_offset * x + header; | |
| 3028 java_lang_ref_Reference::static_lock_offset = java_lang_ref_Reference::hc_static_lock_offset * x; | |
| 3029 java_lang_ref_Reference::static_pending_offset = java_lang_ref_Reference::hc_static_pending_offset * x; | |
| 3030 // Artificial fields for java_lang_ref_Reference | |
| 3031 // The first field is for the discovered field added in 1.4 | |
| 3032 java_lang_ref_Reference::number_of_fake_oop_fields = 1; | |
| 3033 | |
| 3034 // java_lang_ref_SoftReference Class | |
|
165
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|
3035 java_lang_ref_SoftReference::timestamp_offset = align_size_up((java_lang_ref_SoftReference::hc_timestamp_offset * x + header), BytesPerLong); |
| 0 | 3036 // Don't multiply static fields because they are always in wordSize units |
| 3037 java_lang_ref_SoftReference::static_clock_offset = java_lang_ref_SoftReference::hc_static_clock_offset * x; | |
| 3038 | |
| 3039 // java_lang_ClassLoader | |
| 3040 java_lang_ClassLoader::parent_offset = java_lang_ClassLoader::hc_parent_offset * x + header; | |
| 3041 | |
| 3042 // java_lang_System | |
| 3043 java_lang_System::static_in_offset = java_lang_System::hc_static_in_offset * x; | |
| 3044 java_lang_System::static_out_offset = java_lang_System::hc_static_out_offset * x; | |
| 3045 java_lang_System::static_err_offset = java_lang_System::hc_static_err_offset * x; | |
| 3046 | |
| 3047 // java_lang_StackTraceElement | |
| 3048 java_lang_StackTraceElement::declaringClass_offset = java_lang_StackTraceElement::hc_declaringClass_offset * x + header; | |
| 3049 java_lang_StackTraceElement::methodName_offset = java_lang_StackTraceElement::hc_methodName_offset * x + header; | |
| 3050 java_lang_StackTraceElement::fileName_offset = java_lang_StackTraceElement::hc_fileName_offset * x + header; | |
| 3051 java_lang_StackTraceElement::lineNumber_offset = java_lang_StackTraceElement::hc_lineNumber_offset * x + header; | |
| 3052 java_lang_AssertionStatusDirectives::classes_offset = java_lang_AssertionStatusDirectives::hc_classes_offset * x + header; | |
| 3053 java_lang_AssertionStatusDirectives::classEnabled_offset = java_lang_AssertionStatusDirectives::hc_classEnabled_offset * x + header; | |
| 3054 java_lang_AssertionStatusDirectives::packages_offset = java_lang_AssertionStatusDirectives::hc_packages_offset * x + header; | |
| 3055 java_lang_AssertionStatusDirectives::packageEnabled_offset = java_lang_AssertionStatusDirectives::hc_packageEnabled_offset * x + header; | |
| 3056 java_lang_AssertionStatusDirectives::deflt_offset = java_lang_AssertionStatusDirectives::hc_deflt_offset * x + header; | |
| 3057 | |
| 3058 } | |
| 3059 | |
| 3060 | |
| 3061 // Compute non-hard-coded field offsets of all the classes in this file | |
| 3062 void JavaClasses::compute_offsets() { | |
| 3938 | 3063 // java_lang_Class::compute_offsets was called earlier in bootstrap |
| 3064 java_lang_ClassLoader::compute_offsets(); | |
| 0 | 3065 java_lang_Thread::compute_offsets(); |
| 3066 java_lang_ThreadGroup::compute_offsets(); | |
|
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2379
diff
changeset
|
3067 if (EnableInvokeDynamic) { |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
3068 java_lang_invoke_MethodHandle::compute_offsets(); |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
3069 java_lang_invoke_MemberName::compute_offsets(); |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
3070 java_lang_invoke_LambdaForm::compute_offsets(); |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
3071 java_lang_invoke_MethodType::compute_offsets(); |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
3072 java_lang_invoke_CallSite::compute_offsets(); |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
3073 } |
| 0 | 3074 java_security_AccessControlContext::compute_offsets(); |
| 3075 // Initialize reflection classes. The layouts of these classes | |
| 3076 // changed with the new reflection implementation in JDK 1.4, and | |
| 3077 // since the Universe doesn't know what JDK version it is until this | |
| 3078 // point we defer computation of these offsets until now. | |
| 3079 java_lang_reflect_AccessibleObject::compute_offsets(); | |
| 3080 java_lang_reflect_Method::compute_offsets(); | |
| 3081 java_lang_reflect_Constructor::compute_offsets(); | |
| 3082 java_lang_reflect_Field::compute_offsets(); | |
| 3083 if (JDK_Version::is_gte_jdk14x_version()) { | |
| 3084 java_nio_Buffer::compute_offsets(); | |
| 3085 } | |
| 3086 if (JDK_Version::is_gte_jdk15x_version()) { | |
| 3087 sun_reflect_ConstantPool::compute_offsets(); | |
| 3088 sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets(); | |
| 3089 } | |
| 710 | 3090 |
| 3091 // generated interpreter code wants to know about the offsets we just computed: | |
| 3092 AbstractAssembler::update_delayed_values(); | |
| 0 | 3093 } |
| 3094 | |
| 3095 #ifndef PRODUCT | |
| 3096 | |
| 3097 // These functions exist to assert the validity of hard-coded field offsets to guard | |
| 3098 // against changes in the class files | |
| 3099 | |
| 3100 bool JavaClasses::check_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
| 3101 EXCEPTION_MARK; | |
| 3102 fieldDescriptor fd; | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3103 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
|
3104 Klass* k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
| 0 | 3105 instanceKlassHandle h_klass (THREAD, k); |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3106 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
|
3107 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
|
3108 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
| 0 | 3109 tty->print_cr("Nonstatic field %s.%s not found", klass_name, field_name); |
| 3110 return false; | |
| 3111 } | |
| 3112 if (fd.is_static()) { | |
| 3113 tty->print_cr("Nonstatic field %s.%s appears to be static", klass_name, field_name); | |
| 3114 return false; | |
| 3115 } | |
| 3116 if (fd.offset() == hardcoded_offset ) { | |
| 3117 return true; | |
| 3118 } else { | |
| 3119 tty->print_cr("Offset of nonstatic field %s.%s is hardcoded as %d but should really be %d.", | |
| 3120 klass_name, field_name, hardcoded_offset, fd.offset()); | |
| 3121 return false; | |
| 3122 } | |
| 3123 } | |
| 3124 | |
| 3125 | |
| 3126 bool JavaClasses::check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
| 3127 EXCEPTION_MARK; | |
| 3128 fieldDescriptor fd; | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3129 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
|
3130 Klass* k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
| 0 | 3131 instanceKlassHandle h_klass (THREAD, k); |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3132 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
|
3133 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
|
3134 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
| 0 | 3135 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
| 3136 return false; | |
| 3137 } | |
| 3138 if (!fd.is_static()) { | |
| 3139 tty->print_cr("Static field %s.%s appears to be nonstatic", klass_name, field_name); | |
| 3140 return false; | |
| 3141 } | |
|
6735
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
6725
diff
changeset
|
3142 if (fd.offset() == hardcoded_offset + InstanceMirrorKlass::offset_of_static_fields()) { |
| 0 | 3143 return true; |
| 3144 } else { | |
|
6735
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
6725
diff
changeset
|
3145 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 | 3146 return false; |
| 3147 } | |
| 3148 } | |
| 3149 | |
| 3150 | |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3151 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
|
3152 EXCEPTION_MARK; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3153 fieldDescriptor fd; |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3154 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
|
3155 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
|
3156 instanceKlassHandle h_klass (THREAD, k); |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3157 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
|
3158 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
|
3159 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
|
3160 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
|
3161 return false; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3162 } |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3163 if (!fd.is_static() || !fd.has_initial_value()) { |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3164 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
|
3165 return false; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3166 } |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3167 if (!fd.initial_value_tag().is_int()) { |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3168 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
|
3169 return false; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3170 } |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3171 jint field_value = fd.int_initial_value(); |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3172 if (field_value == hardcoded_constant) { |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3173 return true; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3174 } else { |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3175 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
|
3176 return false; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3177 } |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3178 } |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3179 |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3180 |
| 0 | 3181 // Check the hard-coded field offsets of all the classes in this file |
| 3182 | |
| 3183 void JavaClasses::check_offsets() { | |
| 3184 bool valid = true; | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
3185 HandleMark hm; |
| 0 | 3186 |
| 3187 #define CHECK_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ | |
| 3188 valid &= check_offset(klass_name, cpp_klass_name :: field_name ## _offset, #field_name, field_sig) | |
| 3189 | |
|
165
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6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
3190 #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
|
3191 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
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132
diff
changeset
|
3192 |
| 0 | 3193 #define CHECK_STATIC_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
| 3194 valid &= check_static_offset(klass_name, cpp_klass_name :: static_ ## field_name ## _offset, #field_name, field_sig) | |
| 3195 | |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3196 #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
|
3197 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
|
3198 |
| 0 | 3199 // java.lang.String |
| 3200 | |
| 3201 CHECK_OFFSET("java/lang/String", java_lang_String, value, "[C"); | |
| 6057 | 3202 if (java_lang_String::has_offset_field()) { |
| 3203 CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I"); | |
| 3204 CHECK_OFFSET("java/lang/String", java_lang_String, count, "I"); | |
| 3205 } | |
| 3206 if (java_lang_String::has_hash_field()) { | |
| 3207 CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I"); | |
| 3208 } | |
| 0 | 3209 |
| 3210 // java.lang.Class | |
| 3211 | |
| 3212 // Fake fields | |
| 3213 // CHECK_OFFSET("java/lang/Class", java_lang_Class, klass); // %%% this needs to be checked | |
| 3214 // CHECK_OFFSET("java/lang/Class", java_lang_Class, array_klass); // %%% this needs to be checked | |
| 3215 // CHECK_OFFSET("java/lang/Class", java_lang_Class, resolved_constructor); // %%% this needs to be checked | |
| 3216 | |
| 3217 // java.lang.Throwable | |
| 3218 | |
| 3219 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, backtrace, "Ljava/lang/Object;"); | |
| 3220 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, detailMessage, "Ljava/lang/String;"); | |
| 3221 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, cause, "Ljava/lang/Throwable;"); | |
| 3222 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, stackTrace, "[Ljava/lang/StackTraceElement;"); | |
| 3223 | |
| 3224 // Boxed primitive objects (java_lang_boxing_object) | |
| 3225 | |
| 3226 CHECK_OFFSET("java/lang/Boolean", java_lang_boxing_object, value, "Z"); | |
| 3227 CHECK_OFFSET("java/lang/Character", java_lang_boxing_object, value, "C"); | |
| 3228 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
|
3229 CHECK_LONG_OFFSET("java/lang/Double", java_lang_boxing_object, value, "D"); |
| 0 | 3230 CHECK_OFFSET("java/lang/Byte", java_lang_boxing_object, value, "B"); |
| 3231 CHECK_OFFSET("java/lang/Short", java_lang_boxing_object, value, "S"); | |
| 3232 CHECK_OFFSET("java/lang/Integer", java_lang_boxing_object, value, "I"); | |
|
165
437d03ea40b1
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kvn
parents:
132
diff
changeset
|
3233 CHECK_LONG_OFFSET("java/lang/Long", java_lang_boxing_object, value, "J"); |
| 0 | 3234 |
| 3235 // java.lang.ClassLoader | |
| 3236 | |
| 3237 CHECK_OFFSET("java/lang/ClassLoader", java_lang_ClassLoader, parent, "Ljava/lang/ClassLoader;"); | |
| 3238 | |
| 3239 // java.lang.System | |
| 3240 | |
| 3241 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, in, "Ljava/io/InputStream;"); | |
| 3242 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, out, "Ljava/io/PrintStream;"); | |
| 3243 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, err, "Ljava/io/PrintStream;"); | |
| 3244 | |
| 3245 // java.lang.StackTraceElement | |
| 3246 | |
| 3247 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClass, "Ljava/lang/String;"); | |
| 3248 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, methodName, "Ljava/lang/String;"); | |
| 3249 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, fileName, "Ljava/lang/String;"); | |
| 3250 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, lineNumber, "I"); | |
| 3251 | |
| 3252 // java.lang.ref.Reference | |
| 3253 | |
| 3254 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, referent, "Ljava/lang/Object;"); | |
| 3255 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, queue, "Ljava/lang/ref/ReferenceQueue;"); | |
| 3256 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, next, "Ljava/lang/ref/Reference;"); | |
| 3257 // Fake field | |
| 3258 //CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, discovered, "Ljava/lang/ref/Reference;"); | |
| 3259 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, lock, "Ljava/lang/ref/Reference$Lock;"); | |
| 3260 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, pending, "Ljava/lang/ref/Reference;"); | |
| 3261 | |
| 3262 // java.lang.ref.SoftReference | |
| 3263 | |
| 3264 CHECK_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, timestamp, "J"); | |
| 3265 CHECK_STATIC_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, clock, "J"); | |
| 3266 | |
| 3267 // java.lang.AssertionStatusDirectives | |
| 3268 // | |
| 3269 // The CheckAssertionStatusDirectives boolean can be removed from here and | |
| 3270 // globals.hpp after the AssertionStatusDirectives class has been integrated | |
| 3271 // into merlin "for some time." Without it, the vm will fail with early | |
| 3272 // merlin builds. | |
| 3273 | |
| 3274 if (CheckAssertionStatusDirectives && JDK_Version::is_gte_jdk14x_version()) { | |
| 3275 const char* nm = "java/lang/AssertionStatusDirectives"; | |
| 3276 const char* sig = "[Ljava/lang/String;"; | |
| 3277 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classes, sig); | |
| 3278 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classEnabled, "[Z"); | |
| 3279 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packages, sig); | |
| 3280 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packageEnabled, "[Z"); | |
| 3281 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, deflt, "Z"); | |
| 3282 } | |
| 3283 | |
| 3284 if (!valid) vm_exit_during_initialization("Hard-coded field offset verification failed"); | |
| 3285 } | |
| 3286 | |
| 3287 #endif // PRODUCT | |
| 3288 | |
| 3938 | 3289 int InjectedField::compute_offset() { |
|
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3290 Klass* klass_oop = klass(); |
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3291 for (AllFieldStream fs(InstanceKlass::cast(klass_oop)); !fs.done(); fs.next()) { |
| 3938 | 3292 if (!may_be_java && !fs.access_flags().is_internal()) { |
| 3293 // Only look at injected fields | |
| 3294 continue; | |
| 3295 } | |
| 3296 if (fs.name() == name() && fs.signature() == signature()) { | |
| 3297 return fs.offset(); | |
| 3298 } | |
| 3299 } | |
| 3300 ResourceMark rm; | |
|
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3301 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)" : ""); |
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3302 #ifndef PRODUCT |
|
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3303 klass_oop->print(); |
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3304 tty->print_cr("all fields:"); |
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3305 for (AllFieldStream fs(InstanceKlass::cast(klass_oop)); !fs.done(); fs.next()) { |
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3306 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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3307 } |
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3308 #endif //PRODUCT |
| 3938 | 3309 fatal("Invalid layout of preloaded class"); |
| 3310 return -1; | |
| 3311 } | |
| 3312 | |
| 0 | 3313 void javaClasses_init() { |
| 3314 JavaClasses::compute_offsets(); | |
| 3315 JavaClasses::check_offsets(); | |
| 3316 FilteredFieldsMap::initialize(); // must be done after computing offsets. | |
| 3317 } |