Mercurial > hg > graal-compiler
annotate src/share/vm/classfile/javaClasses.cpp @ 6266:1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
6984705: JSR 292 method handle creation should not go through JNI
Summary: remove assembly code for JDK 7 chained method handles
Reviewed-by: jrose, twisti, kvn, mhaupt
Contributed-by: John Rose <john.r.rose@oracle.com>, Christian Thalinger <christian.thalinger@oracle.com>, Michael Haupt <michael.haupt@oracle.com>
| author | twisti |
|---|---|
| date | Tue, 24 Jul 2012 10:51:00 -0700 |
| parents | 56c4f88474b3 |
| children | 977007096840 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 6057 | 2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 6162 | 26 #include "classfile/altHashing.hpp" |
| 1972 | 27 #include "classfile/javaClasses.hpp" |
| 28 #include "classfile/symbolTable.hpp" | |
| 29 #include "classfile/vmSymbols.hpp" | |
| 30 #include "code/debugInfo.hpp" | |
| 31 #include "code/pcDesc.hpp" | |
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32 #include "compiler/compilerOracle.hpp" |
| 1972 | 33 #include "interpreter/interpreter.hpp" |
| 34 #include "memory/oopFactory.hpp" | |
| 35 #include "memory/resourceArea.hpp" | |
| 36 #include "memory/universe.inline.hpp" | |
| 3938 | 37 #include "oops/fieldStreams.hpp" |
| 1972 | 38 #include "oops/instanceKlass.hpp" |
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39 #include "oops/instanceMirrorKlass.hpp" |
| 1972 | 40 #include "oops/klass.hpp" |
| 41 #include "oops/klassOop.hpp" | |
| 42 #include "oops/methodOop.hpp" | |
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43 #include "oops/symbol.hpp" |
| 1972 | 44 #include "oops/typeArrayOop.hpp" |
| 45 #include "runtime/fieldDescriptor.hpp" | |
| 46 #include "runtime/handles.inline.hpp" | |
| 47 #include "runtime/interfaceSupport.hpp" | |
| 48 #include "runtime/java.hpp" | |
| 49 #include "runtime/javaCalls.hpp" | |
| 50 #include "runtime/safepoint.hpp" | |
| 51 #include "runtime/vframe.hpp" | |
| 52 #include "utilities/preserveException.hpp" | |
| 53 #ifdef TARGET_OS_FAMILY_linux | |
| 54 # include "thread_linux.inline.hpp" | |
| 55 #endif | |
| 56 #ifdef TARGET_OS_FAMILY_solaris | |
| 57 # include "thread_solaris.inline.hpp" | |
| 58 #endif | |
| 59 #ifdef TARGET_OS_FAMILY_windows | |
| 60 # include "thread_windows.inline.hpp" | |
| 61 #endif | |
| 3960 | 62 #ifdef TARGET_OS_FAMILY_bsd |
| 63 # include "thread_bsd.inline.hpp" | |
| 64 #endif | |
| 0 | 65 |
| 3938 | 66 #define INJECTED_FIELD_COMPUTE_OFFSET(klass, name, signature, may_be_java) \ |
| 67 klass::_##name##_offset = JavaClasses::compute_injected_offset(JavaClasses::klass##_##name##_enum); | |
| 68 | |
| 69 #define DECLARE_INJECTED_FIELD(klass, name, signature, may_be_java) \ | |
| 70 { SystemDictionary::WK_KLASS_ENUM_NAME(klass), vmSymbols::VM_SYMBOL_ENUM_NAME(name##_name), vmSymbols::VM_SYMBOL_ENUM_NAME(signature), may_be_java }, | |
| 71 | |
| 72 InjectedField JavaClasses::_injected_fields[] = { | |
| 73 ALL_INJECTED_FIELDS(DECLARE_INJECTED_FIELD) | |
| 74 }; | |
| 75 | |
| 76 int JavaClasses::compute_injected_offset(InjectedFieldID id) { | |
| 77 return _injected_fields[id].compute_offset(); | |
| 78 } | |
| 79 | |
| 80 | |
| 81 InjectedField* JavaClasses::get_injected(Symbol* class_name, int* field_count) { | |
| 82 *field_count = 0; | |
| 83 | |
| 84 vmSymbols::SID sid = vmSymbols::find_sid(class_name); | |
| 85 if (sid == vmSymbols::NO_SID) { | |
| 86 // Only well known classes can inject fields | |
| 87 return NULL; | |
| 88 } | |
| 89 | |
| 90 int count = 0; | |
| 91 int start = -1; | |
| 92 | |
| 93 #define LOOKUP_INJECTED_FIELD(klass, name, signature, may_be_java) \ | |
| 94 if (sid == vmSymbols::VM_SYMBOL_ENUM_NAME(klass)) { \ | |
| 95 count++; \ | |
| 96 if (start == -1) start = klass##_##name##_enum; \ | |
| 97 } | |
| 98 ALL_INJECTED_FIELDS(LOOKUP_INJECTED_FIELD); | |
| 99 #undef LOOKUP_INJECTED_FIELD | |
| 100 | |
| 101 if (start != -1) { | |
| 102 *field_count = count; | |
| 103 return _injected_fields + start; | |
| 104 } | |
| 105 return NULL; | |
| 106 } | |
| 107 | |
| 108 | |
| 710 | 109 static bool find_field(instanceKlass* ik, |
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110 Symbol* name_symbol, Symbol* signature_symbol, |
| 710 | 111 fieldDescriptor* fd, |
| 112 bool allow_super = false) { | |
| 113 if (allow_super) | |
| 114 return ik->find_field(name_symbol, signature_symbol, fd) != NULL; | |
| 115 else | |
| 116 return ik->find_local_field(name_symbol, signature_symbol, fd); | |
| 117 } | |
| 118 | |
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119 // Helpful routine for computing field offsets at run time rather than hardcoding them |
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120 static void |
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121 compute_offset(int &dest_offset, |
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122 klassOop klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
| 710 | 123 bool allow_super = false) { |
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124 fieldDescriptor fd; |
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125 instanceKlass* ik = instanceKlass::cast(klass_oop); |
| 710 | 126 if (!find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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127 ResourceMark rm; |
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128 tty->print_cr("Invalid layout of %s at %s", ik->external_name(), name_symbol->as_C_string()); |
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129 #ifndef PRODUCT |
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130 klass_oop->print(); |
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131 tty->print_cr("all fields:"); |
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132 for (AllFieldStream fs(instanceKlass::cast(klass_oop)); !fs.done(); fs.next()) { |
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133 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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134 } |
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135 #endif //PRODUCT |
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136 fatal("Invalid layout of preloaded class"); |
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137 } |
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138 dest_offset = fd.offset(); |
| 0 | 139 } |
| 140 | |
| 141 // Same as above but for "optional" offsets that might not be present in certain JDK versions | |
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142 static void |
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143 compute_optional_offset(int& dest_offset, |
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144 klassOop klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
| 710 | 145 bool allow_super = false) { |
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146 fieldDescriptor fd; |
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147 instanceKlass* ik = instanceKlass::cast(klass_oop); |
| 710 | 148 if (find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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149 dest_offset = fd.offset(); |
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150 } |
| 0 | 151 } |
| 152 | |
| 710 | 153 |
| 6057 | 154 int java_lang_String::value_offset = 0; |
| 155 int java_lang_String::offset_offset = 0; | |
| 156 int java_lang_String::count_offset = 0; | |
| 157 int java_lang_String::hash_offset = 0; | |
| 158 | |
| 159 bool java_lang_String::initialized = false; | |
| 160 | |
| 161 void java_lang_String::compute_offsets() { | |
| 162 assert(!initialized, "offsets should be initialized only once"); | |
| 163 | |
| 164 klassOop k = SystemDictionary::String_klass(); | |
| 165 compute_offset(value_offset, k, vmSymbols::value_name(), vmSymbols::char_array_signature()); | |
| 166 compute_optional_offset(offset_offset, k, vmSymbols::offset_name(), vmSymbols::int_signature()); | |
| 167 compute_optional_offset(count_offset, k, vmSymbols::count_name(), vmSymbols::int_signature()); | |
| 168 compute_optional_offset(hash_offset, k, vmSymbols::hash_name(), vmSymbols::int_signature()); | |
| 169 | |
| 170 initialized = true; | |
| 171 } | |
| 172 | |
| 0 | 173 Handle java_lang_String::basic_create(int length, bool tenured, TRAPS) { |
| 6057 | 174 assert(initialized, "Must be initialized"); |
| 0 | 175 // Create the String object first, so there's a chance that the String |
| 176 // and the char array it points to end up in the same cache line. | |
| 177 oop obj; | |
| 178 if (tenured) { | |
| 1142 | 179 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_permanent_instance(CHECK_NH); |
| 0 | 180 } else { |
| 1142 | 181 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_instance(CHECK_NH); |
| 0 | 182 } |
| 183 | |
| 184 // Create the char array. The String object must be handlized here | |
| 185 // because GC can happen as a result of the allocation attempt. | |
| 186 Handle h_obj(THREAD, obj); | |
| 187 typeArrayOop buffer; | |
| 188 if (tenured) { | |
| 189 buffer = oopFactory::new_permanent_charArray(length, CHECK_NH); | |
| 190 } else { | |
| 191 buffer = oopFactory::new_charArray(length, CHECK_NH); | |
| 192 } | |
| 193 | |
| 194 // Point the String at the char array | |
| 195 obj = h_obj(); | |
| 196 set_value(obj, buffer); | |
| 197 // No need to zero the offset, allocation zero'ed the entire String object | |
| 198 assert(offset(obj) == 0, "initial String offset should be zero"); | |
| 199 //set_offset(obj, 0); | |
| 200 set_count(obj, length); | |
| 201 | |
| 202 return h_obj; | |
| 203 } | |
| 204 | |
| 205 Handle java_lang_String::basic_create_from_unicode(jchar* unicode, int length, bool tenured, TRAPS) { | |
| 206 Handle h_obj = basic_create(length, tenured, CHECK_NH); | |
| 207 typeArrayOop buffer = value(h_obj()); | |
| 208 for (int index = 0; index < length; index++) { | |
| 209 buffer->char_at_put(index, unicode[index]); | |
| 210 } | |
| 211 return h_obj; | |
| 212 } | |
| 213 | |
| 214 Handle java_lang_String::create_from_unicode(jchar* unicode, int length, TRAPS) { | |
| 215 return basic_create_from_unicode(unicode, length, false, CHECK_NH); | |
| 216 } | |
| 217 | |
| 218 Handle java_lang_String::create_tenured_from_unicode(jchar* unicode, int length, TRAPS) { | |
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219 return basic_create_from_unicode(unicode, length, JavaObjectsInPerm, CHECK_NH); |
| 0 | 220 } |
| 221 | |
| 222 oop java_lang_String::create_oop_from_unicode(jchar* unicode, int length, TRAPS) { | |
| 223 Handle h_obj = basic_create_from_unicode(unicode, length, false, CHECK_0); | |
| 224 return h_obj(); | |
| 225 } | |
| 226 | |
| 227 Handle java_lang_String::create_from_str(const char* utf8_str, TRAPS) { | |
| 228 if (utf8_str == NULL) { | |
| 229 return Handle(); | |
| 230 } | |
| 231 int length = UTF8::unicode_length(utf8_str); | |
| 232 Handle h_obj = basic_create(length, false, CHECK_NH); | |
| 233 if (length > 0) { | |
| 234 UTF8::convert_to_unicode(utf8_str, value(h_obj())->char_at_addr(0), length); | |
| 235 } | |
| 236 return h_obj; | |
| 237 } | |
| 238 | |
| 239 oop java_lang_String::create_oop_from_str(const char* utf8_str, TRAPS) { | |
| 240 Handle h_obj = create_from_str(utf8_str, CHECK_0); | |
| 241 return h_obj(); | |
| 242 } | |
| 243 | |
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244 Handle java_lang_String::create_from_symbol(Symbol* symbol, TRAPS) { |
| 0 | 245 int length = UTF8::unicode_length((char*)symbol->bytes(), symbol->utf8_length()); |
| 246 Handle h_obj = basic_create(length, false, CHECK_NH); | |
| 247 if (length > 0) { | |
| 248 UTF8::convert_to_unicode((char*)symbol->bytes(), value(h_obj())->char_at_addr(0), length); | |
| 249 } | |
| 250 return h_obj; | |
| 251 } | |
| 252 | |
| 253 // Converts a C string to a Java String based on current encoding | |
| 254 Handle java_lang_String::create_from_platform_dependent_str(const char* str, TRAPS) { | |
| 255 assert(str != NULL, "bad arguments"); | |
| 256 | |
| 257 typedef jstring (*to_java_string_fn_t)(JNIEnv*, const char *); | |
| 258 static to_java_string_fn_t _to_java_string_fn = NULL; | |
| 259 | |
| 260 if (_to_java_string_fn == NULL) { | |
| 261 void *lib_handle = os::native_java_library(); | |
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262 _to_java_string_fn = CAST_TO_FN_PTR(to_java_string_fn_t, os::dll_lookup(lib_handle, "NewStringPlatform")); |
| 0 | 263 if (_to_java_string_fn == NULL) { |
| 264 fatal("NewStringPlatform missing"); | |
| 265 } | |
| 266 } | |
| 267 | |
| 268 jstring js = NULL; | |
| 269 { JavaThread* thread = (JavaThread*)THREAD; | |
| 270 assert(thread->is_Java_thread(), "must be java thread"); | |
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271 HandleMark hm(thread); |
| 0 | 272 ThreadToNativeFromVM ttn(thread); |
| 273 js = (_to_java_string_fn)(thread->jni_environment(), str); | |
| 274 } | |
| 275 return Handle(THREAD, JNIHandles::resolve(js)); | |
| 276 } | |
| 277 | |
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278 // Converts a Java String to a native C string that can be used for |
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279 // native OS calls. |
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280 char* java_lang_String::as_platform_dependent_str(Handle java_string, TRAPS) { |
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281 |
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282 typedef char* (*to_platform_string_fn_t)(JNIEnv*, jstring, bool*); |
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283 static to_platform_string_fn_t _to_platform_string_fn = NULL; |
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284 |
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285 if (_to_platform_string_fn == NULL) { |
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286 void *lib_handle = os::native_java_library(); |
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287 _to_platform_string_fn = CAST_TO_FN_PTR(to_platform_string_fn_t, os::dll_lookup(lib_handle, "GetStringPlatformChars")); |
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288 if (_to_platform_string_fn == NULL) { |
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289 fatal("GetStringPlatformChars missing"); |
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290 } |
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291 } |
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292 |
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293 char *native_platform_string; |
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294 { JavaThread* thread = (JavaThread*)THREAD; |
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295 assert(thread->is_Java_thread(), "must be java thread"); |
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296 JNIEnv *env = thread->jni_environment(); |
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297 jstring js = (jstring) JNIHandles::make_local(env, java_string()); |
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298 bool is_copy; |
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299 HandleMark hm(thread); |
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300 ThreadToNativeFromVM ttn(thread); |
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301 native_platform_string = (_to_platform_string_fn)(env, js, &is_copy); |
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302 assert(is_copy == JNI_TRUE, "is_copy value changed"); |
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303 JNIHandles::destroy_local(js); |
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304 } |
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305 return native_platform_string; |
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306 } |
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307 |
| 0 | 308 Handle java_lang_String::char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS) { |
| 309 oop obj = java_string(); | |
| 310 // Typical usage is to convert all '/' to '.' in string. | |
| 311 typeArrayOop value = java_lang_String::value(obj); | |
| 312 int offset = java_lang_String::offset(obj); | |
| 313 int length = java_lang_String::length(obj); | |
| 314 | |
| 315 // First check if any from_char exist | |
| 316 int index; // Declared outside, used later | |
| 317 for (index = 0; index < length; index++) { | |
| 318 if (value->char_at(index + offset) == from_char) { | |
| 319 break; | |
| 320 } | |
| 321 } | |
| 322 if (index == length) { | |
| 323 // No from_char, so do not copy. | |
| 324 return java_string; | |
| 325 } | |
| 326 | |
| 327 // Create new UNICODE buffer. Must handlize value because GC | |
| 328 // may happen during String and char array creation. | |
| 329 typeArrayHandle h_value(THREAD, value); | |
| 330 Handle string = basic_create(length, false, CHECK_NH); | |
| 331 | |
| 332 typeArrayOop from_buffer = h_value(); | |
| 333 typeArrayOop to_buffer = java_lang_String::value(string()); | |
| 334 | |
| 335 // Copy contents | |
| 336 for (index = 0; index < length; index++) { | |
| 337 jchar c = from_buffer->char_at(index + offset); | |
| 338 if (c == from_char) { | |
| 339 c = to_char; | |
| 340 } | |
| 341 to_buffer->char_at_put(index, c); | |
| 342 } | |
| 343 return string; | |
| 344 } | |
| 345 | |
| 346 jchar* java_lang_String::as_unicode_string(oop java_string, int& length) { | |
| 347 typeArrayOop value = java_lang_String::value(java_string); | |
| 348 int offset = java_lang_String::offset(java_string); | |
| 349 length = java_lang_String::length(java_string); | |
| 350 | |
| 351 jchar* result = NEW_RESOURCE_ARRAY(jchar, length); | |
| 352 for (int index = 0; index < length; index++) { | |
| 353 result[index] = value->char_at(index + offset); | |
| 354 } | |
| 355 return result; | |
| 356 } | |
| 357 | |
| 6162 | 358 unsigned int java_lang_String::to_hash(oop java_string) { |
| 359 int length = java_lang_String::length(java_string); | |
| 360 // Zero length string will hash to zero with String.toHash() function. | |
| 361 if (length == 0) return 0; | |
| 362 | |
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363 typeArrayOop value = java_lang_String::value(java_string); |
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364 int offset = java_lang_String::offset(java_string); |
| 6162 | 365 return java_lang_String::to_hash(value->char_at_addr(offset), length); |
| 366 } | |
| 367 | |
| 368 unsigned int java_lang_String::hash_string(oop java_string) { | |
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369 int length = java_lang_String::length(java_string); |
| 6162 | 370 // Zero length string doesn't hash necessarily hash to zero. |
| 371 if (length == 0) { | |
| 372 return StringTable::hash_string(NULL, 0); | |
| 373 } | |
| 374 | |
| 375 typeArrayOop value = java_lang_String::value(java_string); | |
| 376 int offset = java_lang_String::offset(java_string); | |
| 377 return StringTable::hash_string(value->char_at_addr(offset), length); | |
|
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378 } |
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379 |
|
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380 Symbol* java_lang_String::as_symbol(Handle java_string, TRAPS) { |
| 0 | 381 oop obj = java_string(); |
| 382 typeArrayOop value = java_lang_String::value(obj); | |
| 383 int offset = java_lang_String::offset(obj); | |
| 384 int length = java_lang_String::length(obj); | |
|
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385 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
|
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386 Symbol* sym = SymbolTable::lookup_unicode(base, length, THREAD); |
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387 return sym; |
| 0 | 388 } |
| 389 | |
|
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390 Symbol* java_lang_String::as_symbol_or_null(oop java_string) { |
|
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391 typeArrayOop value = java_lang_String::value(java_string); |
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392 int offset = java_lang_String::offset(java_string); |
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393 int length = java_lang_String::length(java_string); |
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394 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
|
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395 return SymbolTable::probe_unicode(base, length); |
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396 } |
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397 |
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398 |
| 0 | 399 int java_lang_String::utf8_length(oop java_string) { |
| 400 typeArrayOop value = java_lang_String::value(java_string); | |
| 401 int offset = java_lang_String::offset(java_string); | |
| 402 int length = java_lang_String::length(java_string); | |
| 403 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
| 404 return UNICODE::utf8_length(position, length); | |
| 405 } | |
| 406 | |
| 407 char* java_lang_String::as_utf8_string(oop java_string) { | |
| 408 typeArrayOop value = java_lang_String::value(java_string); | |
| 409 int offset = java_lang_String::offset(java_string); | |
| 410 int length = java_lang_String::length(java_string); | |
| 411 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
| 412 return UNICODE::as_utf8(position, length); | |
| 413 } | |
| 414 | |
|
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6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
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415 char* java_lang_String::as_utf8_string(oop java_string, char* buf, int buflen) { |
|
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416 typeArrayOop value = java_lang_String::value(java_string); |
|
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417 int offset = java_lang_String::offset(java_string); |
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418 int length = java_lang_String::length(java_string); |
|
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419 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); |
|
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420 return UNICODE::as_utf8(position, length, buf, buflen); |
|
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421 } |
|
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422 |
| 0 | 423 char* java_lang_String::as_utf8_string(oop java_string, int start, int len) { |
| 424 typeArrayOop value = java_lang_String::value(java_string); | |
| 425 int offset = java_lang_String::offset(java_string); | |
| 426 int length = java_lang_String::length(java_string); | |
| 427 assert(start + len <= length, "just checking"); | |
| 428 jchar* position = value->char_at_addr(offset + start); | |
| 429 return UNICODE::as_utf8(position, len); | |
| 430 } | |
| 431 | |
| 432 bool java_lang_String::equals(oop java_string, jchar* chars, int len) { | |
| 433 assert(SharedSkipVerify || | |
| 1142 | 434 java_string->klass() == SystemDictionary::String_klass(), |
| 0 | 435 "must be java_string"); |
| 436 typeArrayOop value = java_lang_String::value(java_string); | |
| 437 int offset = java_lang_String::offset(java_string); | |
| 438 int length = java_lang_String::length(java_string); | |
| 439 if (length != len) { | |
| 440 return false; | |
| 441 } | |
| 442 for (int i = 0; i < len; i++) { | |
| 443 if (value->char_at(i + offset) != chars[i]) { | |
| 444 return false; | |
| 445 } | |
| 446 } | |
| 447 return true; | |
| 448 } | |
| 449 | |
| 450 void java_lang_String::print(Handle java_string, outputStream* st) { | |
| 451 oop obj = java_string(); | |
| 1142 | 452 assert(obj->klass() == SystemDictionary::String_klass(), "must be java_string"); |
| 0 | 453 typeArrayOop value = java_lang_String::value(obj); |
| 454 int offset = java_lang_String::offset(obj); | |
| 455 int length = java_lang_String::length(obj); | |
| 456 | |
| 457 int end = MIN2(length, 100); | |
| 458 if (value == NULL) { | |
| 459 // This can happen if, e.g., printing a String | |
| 460 // object before its initializer has been called | |
| 461 st->print_cr("NULL"); | |
| 462 } else { | |
| 463 st->print("\""); | |
| 464 for (int index = 0; index < length; index++) { | |
| 465 st->print("%c", value->char_at(index + offset)); | |
| 466 } | |
| 467 st->print("\""); | |
| 468 } | |
| 469 } | |
| 470 | |
|
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471 static void initialize_static_field(fieldDescriptor* fd, TRAPS) { |
|
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472 Handle mirror (THREAD, fd->field_holder()->java_mirror()); |
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473 assert(mirror.not_null() && fd->is_static(), "just checking"); |
|
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474 if (fd->has_initial_value()) { |
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475 BasicType t = fd->field_type(); |
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476 switch (t) { |
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477 case T_BYTE: |
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478 mirror()->byte_field_put(fd->offset(), fd->int_initial_value()); |
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479 break; |
|
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480 case T_BOOLEAN: |
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481 mirror()->bool_field_put(fd->offset(), fd->int_initial_value()); |
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482 break; |
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483 case T_CHAR: |
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484 mirror()->char_field_put(fd->offset(), fd->int_initial_value()); |
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485 break; |
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486 case T_SHORT: |
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487 mirror()->short_field_put(fd->offset(), fd->int_initial_value()); |
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488 break; |
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489 case T_INT: |
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490 mirror()->int_field_put(fd->offset(), fd->int_initial_value()); |
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491 break; |
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492 case T_FLOAT: |
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493 mirror()->float_field_put(fd->offset(), fd->float_initial_value()); |
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494 break; |
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495 case T_DOUBLE: |
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496 mirror()->double_field_put(fd->offset(), fd->double_initial_value()); |
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497 break; |
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498 case T_LONG: |
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499 mirror()->long_field_put(fd->offset(), fd->long_initial_value()); |
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500 break; |
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501 case T_OBJECT: |
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502 { |
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503 #ifdef ASSERT |
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504 TempNewSymbol sym = SymbolTable::new_symbol("Ljava/lang/String;", CHECK); |
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505 assert(fd->signature() == sym, "just checking"); |
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506 #endif |
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507 oop string = fd->string_initial_value(CHECK); |
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508 mirror()->obj_field_put(fd->offset(), string); |
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509 } |
|
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510 break; |
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511 default: |
|
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512 THROW_MSG(vmSymbols::java_lang_ClassFormatError(), |
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513 "Illegal ConstantValue attribute in class file"); |
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514 } |
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515 } |
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516 } |
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517 |
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518 |
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519 void java_lang_Class::fixup_mirror(KlassHandle k, TRAPS) { |
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520 assert(instanceMirrorKlass::offset_of_static_fields() != 0, "must have been computed already"); |
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521 |
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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. | |
| 526 for (JavaFieldStream fs(instanceKlass::cast(k())); !fs.done(); fs.next()) { | |
| 527 if (fs.access_flags().is_static()) { | |
| 528 int real_offset = fs.offset() + instanceMirrorKlass::offset_of_static_fields(); | |
| 529 fs.set_offset(real_offset); | |
| 530 } | |
| 531 } | |
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532 } |
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533 create_mirror(k, CHECK); |
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534 } |
| 0 | 535 |
| 536 oop java_lang_Class::create_mirror(KlassHandle k, TRAPS) { | |
| 537 assert(k->java_mirror() == NULL, "should only assign mirror once"); | |
| 538 // Use this moment of initialization to cache modifier_flags also, | |
| 539 // to support Class.getModifiers(). Instance classes recalculate | |
| 540 // the cached flags after the class file is parsed, but before the | |
| 541 // class is put into the system dictionary. | |
| 542 int computed_modifiers = k->compute_modifier_flags(CHECK_0); | |
| 543 k->set_modifier_flags(computed_modifiers); | |
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544 if (SystemDictionary::Class_klass_loaded() && (k->oop_is_instance() || k->oop_is_javaArray())) { |
| 0 | 545 // Allocate mirror (java.lang.Class instance) |
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546 Handle mirror = instanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(k, CHECK_0); |
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547 |
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548 instanceMirrorKlass* mk = instanceMirrorKlass::cast(mirror->klass()); |
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549 java_lang_Class::set_static_oop_field_count(mirror(), mk->compute_static_oop_field_count(mirror())); |
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550 |
| 0 | 551 // It might also have a component mirror. This mirror must already exist. |
| 552 if (k->oop_is_javaArray()) { | |
| 553 Handle comp_mirror; | |
| 554 if (k->oop_is_typeArray()) { | |
| 555 BasicType type = typeArrayKlass::cast(k->as_klassOop())->element_type(); | |
| 556 comp_mirror = Universe::java_mirror(type); | |
| 557 assert(comp_mirror.not_null(), "must have primitive mirror"); | |
| 558 } else if (k->oop_is_objArray()) { | |
| 559 klassOop element_klass = objArrayKlass::cast(k->as_klassOop())->element_klass(); | |
| 560 if (element_klass != NULL | |
| 561 && (Klass::cast(element_klass)->oop_is_instance() || | |
| 562 Klass::cast(element_klass)->oop_is_javaArray())) { | |
| 563 comp_mirror = Klass::cast(element_klass)->java_mirror(); | |
| 564 assert(comp_mirror.not_null(), "must have element mirror"); | |
| 565 } | |
| 566 // else some object array internal to the VM, like systemObjArrayKlassObj | |
| 567 } | |
| 568 if (comp_mirror.not_null()) { | |
| 569 // Two-way link between the array klass and its component mirror: | |
| 570 arrayKlass::cast(k->as_klassOop())->set_component_mirror(comp_mirror()); | |
| 571 set_array_klass(comp_mirror(), k->as_klassOop()); | |
| 572 } | |
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573 } else if (k->oop_is_instance()) { |
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574 // Initialize static fields |
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575 instanceKlass::cast(k())->do_local_static_fields(&initialize_static_field, CHECK_NULL); |
| 0 | 576 } |
| 577 return mirror(); | |
| 578 } else { | |
| 579 return NULL; | |
| 580 } | |
| 581 } | |
| 582 | |
| 583 | |
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584 |
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585 int java_lang_Class::oop_size(oop java_class) { |
| 3938 | 586 assert(_oop_size_offset != 0, "must be set"); |
| 587 return java_class->int_field(_oop_size_offset); | |
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588 } |
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589 void java_lang_Class::set_oop_size(oop java_class, int size) { |
| 3938 | 590 assert(_oop_size_offset != 0, "must be set"); |
| 591 java_class->int_field_put(_oop_size_offset, size); | |
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592 } |
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593 int java_lang_Class::static_oop_field_count(oop java_class) { |
| 3938 | 594 assert(_static_oop_field_count_offset != 0, "must be set"); |
| 595 return java_class->int_field(_static_oop_field_count_offset); | |
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596 } |
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597 void java_lang_Class::set_static_oop_field_count(oop java_class, int size) { |
| 3938 | 598 assert(_static_oop_field_count_offset != 0, "must be set"); |
| 599 java_class->int_field_put(_static_oop_field_count_offset, size); | |
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600 } |
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601 |
| 0 | 602 oop java_lang_Class::create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS) { |
| 603 // This should be improved by adding a field at the Java level or by | |
| 604 // introducing a new VM klass (see comment in ClassFileParser) | |
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605 oop java_class = instanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance((oop)NULL, CHECK_0); |
| 0 | 606 if (type != T_VOID) { |
| 607 klassOop aklass = Universe::typeArrayKlassObj(type); | |
| 608 assert(aklass != NULL, "correct bootstrap"); | |
| 609 set_array_klass(java_class, aklass); | |
| 610 } | |
| 4009 | 611 #ifdef ASSERT |
|
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612 instanceMirrorKlass* mk = instanceMirrorKlass::cast(SystemDictionary::Class_klass()); |
| 4009 | 613 assert(java_lang_Class::static_oop_field_count(java_class) == 0, "should have been zeroed by allocation"); |
| 614 #endif | |
| 0 | 615 return java_class; |
| 616 } | |
| 617 | |
| 618 | |
| 619 klassOop java_lang_Class::as_klassOop(oop java_class) { | |
| 620 //%note memory_2 | |
|
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621 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
| 3938 | 622 klassOop k = klassOop(java_class->obj_field(_klass_offset)); |
| 0 | 623 assert(k == NULL || k->is_klass(), "type check"); |
| 624 return k; | |
| 625 } | |
| 626 | |
| 627 | |
| 4009 | 628 void java_lang_Class::set_klass(oop java_class, klassOop klass) { |
| 629 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); | |
| 630 java_class->obj_field_put(_klass_offset, klass); | |
| 631 } | |
| 632 | |
| 633 | |
|
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634 void java_lang_Class::print_signature(oop java_class, outputStream* st) { |
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635 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
|
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636 Symbol* name = NULL; |
|
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637 bool is_instance = false; |
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638 if (is_primitive(java_class)) { |
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639 name = vmSymbols::type_signature(primitive_type(java_class)); |
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640 } else { |
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641 klassOop k = as_klassOop(java_class); |
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642 is_instance = Klass::cast(k)->oop_is_instance(); |
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643 name = Klass::cast(k)->name(); |
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644 } |
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645 if (name == NULL) { |
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646 st->print("<null>"); |
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647 return; |
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648 } |
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649 if (is_instance) st->print("L"); |
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650 st->write((char*) name->base(), (int) name->utf8_length()); |
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651 if (is_instance) st->print(";"); |
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652 } |
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653 |
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654 Symbol* java_lang_Class::as_signature(oop java_class, bool intern_if_not_found, TRAPS) { |
|
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655 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
|
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656 Symbol* name; |
|
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657 if (is_primitive(java_class)) { |
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658 name = vmSymbols::type_signature(primitive_type(java_class)); |
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659 // Because this can create a new symbol, the caller has to decrement |
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660 // the refcount, so make adjustment here and below for symbols returned |
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661 // that are not created or incremented due to a successful lookup. |
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662 name->increment_refcount(); |
|
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663 } else { |
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664 klassOop k = as_klassOop(java_class); |
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665 if (!Klass::cast(k)->oop_is_instance()) { |
|
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666 name = Klass::cast(k)->name(); |
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667 name->increment_refcount(); |
|
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668 } else { |
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669 ResourceMark rm; |
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670 const char* sigstr = Klass::cast(k)->signature_name(); |
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671 int siglen = (int) strlen(sigstr); |
|
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672 if (!intern_if_not_found) { |
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673 name = SymbolTable::probe(sigstr, siglen); |
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674 } else { |
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675 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
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676 } |
|
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677 } |
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678 } |
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679 return name; |
|
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680 } |
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681 |
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682 |
| 0 | 683 klassOop java_lang_Class::array_klass(oop java_class) { |
| 3938 | 684 klassOop k = klassOop(java_class->obj_field(_array_klass_offset)); |
| 0 | 685 assert(k == NULL || k->is_klass() && Klass::cast(k)->oop_is_javaArray(), "should be array klass"); |
| 686 return k; | |
| 687 } | |
| 688 | |
| 689 | |
| 690 void java_lang_Class::set_array_klass(oop java_class, klassOop klass) { | |
| 691 assert(klass->is_klass() && Klass::cast(klass)->oop_is_javaArray(), "should be array klass"); | |
| 3938 | 692 java_class->obj_field_put(_array_klass_offset, klass); |
| 0 | 693 } |
| 694 | |
| 695 | |
| 696 methodOop java_lang_Class::resolved_constructor(oop java_class) { | |
| 3938 | 697 oop constructor = java_class->obj_field(_resolved_constructor_offset); |
| 0 | 698 assert(constructor == NULL || constructor->is_method(), "should be method"); |
| 699 return methodOop(constructor); | |
| 700 } | |
| 701 | |
| 702 | |
| 703 void java_lang_Class::set_resolved_constructor(oop java_class, methodOop constructor) { | |
| 704 assert(constructor->is_method(), "should be method"); | |
| 3938 | 705 java_class->obj_field_put(_resolved_constructor_offset, constructor); |
| 0 | 706 } |
| 707 | |
| 708 | |
| 709 bool java_lang_Class::is_primitive(oop java_class) { | |
|
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710 // should assert: |
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711 //assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
| 3938 | 712 klassOop k = klassOop(java_class->obj_field(_klass_offset)); |
| 0 | 713 return k == NULL; |
| 714 } | |
| 715 | |
| 716 | |
| 717 BasicType java_lang_Class::primitive_type(oop java_class) { | |
| 718 assert(java_lang_Class::is_primitive(java_class), "just checking"); | |
| 3938 | 719 klassOop ak = klassOop(java_class->obj_field(_array_klass_offset)); |
| 0 | 720 BasicType type = T_VOID; |
| 721 if (ak != NULL) { | |
| 722 // Note: create_basic_type_mirror above initializes ak to a non-null value. | |
| 723 type = arrayKlass::cast(ak)->element_type(); | |
| 724 } else { | |
| 725 assert(java_class == Universe::void_mirror(), "only valid non-array primitive"); | |
| 726 } | |
| 727 assert(Universe::java_mirror(type) == java_class, "must be consistent"); | |
| 728 return type; | |
| 729 } | |
| 730 | |
|
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731 BasicType java_lang_Class::as_BasicType(oop java_class, klassOop* reference_klass) { |
|
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732 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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733 if (is_primitive(java_class)) { |
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734 if (reference_klass != NULL) |
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735 (*reference_klass) = NULL; |
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736 return primitive_type(java_class); |
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737 } else { |
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738 if (reference_klass != NULL) |
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739 (*reference_klass) = as_klassOop(java_class); |
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740 return T_OBJECT; |
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741 } |
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742 } |
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743 |
| 0 | 744 |
| 745 oop java_lang_Class::primitive_mirror(BasicType t) { | |
| 746 oop mirror = Universe::java_mirror(t); | |
| 1142 | 747 assert(mirror != NULL && mirror->is_a(SystemDictionary::Class_klass()), "must be a Class"); |
| 0 | 748 assert(java_lang_Class::is_primitive(mirror), "must be primitive"); |
| 749 return mirror; | |
| 750 } | |
| 751 | |
| 752 bool java_lang_Class::offsets_computed = false; | |
| 753 int java_lang_Class::classRedefinedCount_offset = -1; | |
| 754 | |
| 755 void java_lang_Class::compute_offsets() { | |
| 756 assert(!offsets_computed, "offsets should be initialized only once"); | |
| 757 offsets_computed = true; | |
| 758 | |
| 3938 | 759 klassOop klass_oop = SystemDictionary::Class_klass(); |
| 0 | 760 // The classRedefinedCount field is only present starting in 1.5, |
| 761 // so don't go fatal. | |
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762 compute_optional_offset(classRedefinedCount_offset, |
| 3938 | 763 klass_oop, vmSymbols::classRedefinedCount_name(), vmSymbols::int_signature()); |
| 764 | |
| 765 CLASS_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
| 0 | 766 } |
| 767 | |
| 768 int java_lang_Class::classRedefinedCount(oop the_class_mirror) { | |
| 769 if (!JDK_Version::is_gte_jdk15x_version() | |
| 770 || classRedefinedCount_offset == -1) { | |
| 771 // The classRedefinedCount field is only present starting in 1.5. | |
| 772 // If we don't have an offset for it then just return -1 as a marker. | |
| 773 return -1; | |
| 774 } | |
| 775 | |
| 776 return the_class_mirror->int_field(classRedefinedCount_offset); | |
| 777 } | |
| 778 | |
| 779 void java_lang_Class::set_classRedefinedCount(oop the_class_mirror, int value) { | |
| 780 if (!JDK_Version::is_gte_jdk15x_version() | |
| 781 || classRedefinedCount_offset == -1) { | |
| 782 // The classRedefinedCount field is only present starting in 1.5. | |
| 783 // If we don't have an offset for it then nothing to set. | |
| 784 return; | |
| 785 } | |
| 786 | |
| 787 the_class_mirror->int_field_put(classRedefinedCount_offset, value); | |
| 788 } | |
| 789 | |
| 790 | |
| 791 // Note: JDK1.1 and before had a privateInfo_offset field which was used for the | |
| 792 // platform thread structure, and a eetop offset which was used for thread | |
| 793 // local storage (and unused by the HotSpot VM). In JDK1.2 the two structures | |
| 794 // merged, so in the HotSpot VM we just use the eetop field for the thread | |
| 795 // instead of the privateInfo_offset. | |
| 796 // | |
| 797 // Note: The stackSize field is only present starting in 1.4. | |
| 798 | |
| 799 int java_lang_Thread::_name_offset = 0; | |
| 800 int java_lang_Thread::_group_offset = 0; | |
| 801 int java_lang_Thread::_contextClassLoader_offset = 0; | |
| 802 int java_lang_Thread::_inheritedAccessControlContext_offset = 0; | |
| 803 int java_lang_Thread::_priority_offset = 0; | |
| 804 int java_lang_Thread::_eetop_offset = 0; | |
| 805 int java_lang_Thread::_daemon_offset = 0; | |
| 806 int java_lang_Thread::_stillborn_offset = 0; | |
| 807 int java_lang_Thread::_stackSize_offset = 0; | |
| 808 int java_lang_Thread::_tid_offset = 0; | |
| 809 int java_lang_Thread::_thread_status_offset = 0; | |
| 810 int java_lang_Thread::_park_blocker_offset = 0; | |
| 811 int java_lang_Thread::_park_event_offset = 0 ; | |
| 812 | |
| 813 | |
| 814 void java_lang_Thread::compute_offsets() { | |
| 815 assert(_group_offset == 0, "offsets should be initialized only once"); | |
| 816 | |
| 1142 | 817 klassOop k = SystemDictionary::Thread_klass(); |
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818 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::char_array_signature()); |
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819 compute_offset(_group_offset, k, vmSymbols::group_name(), vmSymbols::threadgroup_signature()); |
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820 compute_offset(_contextClassLoader_offset, k, vmSymbols::contextClassLoader_name(), vmSymbols::classloader_signature()); |
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821 compute_offset(_inheritedAccessControlContext_offset, k, vmSymbols::inheritedAccessControlContext_name(), vmSymbols::accesscontrolcontext_signature()); |
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822 compute_offset(_priority_offset, k, vmSymbols::priority_name(), vmSymbols::int_signature()); |
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823 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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824 compute_offset(_eetop_offset, k, vmSymbols::eetop_name(), vmSymbols::long_signature()); |
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825 compute_offset(_stillborn_offset, k, vmSymbols::stillborn_name(), vmSymbols::bool_signature()); |
| 0 | 826 // The stackSize field is only present starting in 1.4, so don't go fatal. |
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827 compute_optional_offset(_stackSize_offset, k, vmSymbols::stackSize_name(), vmSymbols::long_signature()); |
| 0 | 828 // The tid and thread_status fields are only present starting in 1.5, so don't go fatal. |
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829 compute_optional_offset(_tid_offset, k, vmSymbols::thread_id_name(), vmSymbols::long_signature()); |
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830 compute_optional_offset(_thread_status_offset, k, vmSymbols::thread_status_name(), vmSymbols::int_signature()); |
| 0 | 831 // The parkBlocker field is only present starting in 1.6, so don't go fatal. |
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832 compute_optional_offset(_park_blocker_offset, k, vmSymbols::park_blocker_name(), vmSymbols::object_signature()); |
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833 compute_optional_offset(_park_event_offset, k, vmSymbols::park_event_name(), |
| 0 | 834 vmSymbols::long_signature()); |
| 835 } | |
| 836 | |
| 837 | |
| 838 JavaThread* java_lang_Thread::thread(oop java_thread) { | |
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839 return (JavaThread*)java_thread->address_field(_eetop_offset); |
| 0 | 840 } |
| 841 | |
| 842 | |
| 843 void java_lang_Thread::set_thread(oop java_thread, JavaThread* thread) { | |
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844 java_thread->address_field_put(_eetop_offset, (address)thread); |
| 0 | 845 } |
| 846 | |
| 847 | |
| 848 typeArrayOop java_lang_Thread::name(oop java_thread) { | |
| 849 oop name = java_thread->obj_field(_name_offset); | |
| 850 assert(name == NULL || (name->is_typeArray() && typeArrayKlass::cast(name->klass())->element_type() == T_CHAR), "just checking"); | |
| 851 return typeArrayOop(name); | |
| 852 } | |
| 853 | |
| 854 | |
| 855 void java_lang_Thread::set_name(oop java_thread, typeArrayOop name) { | |
| 856 assert(java_thread->obj_field(_name_offset) == NULL, "name should be NULL"); | |
| 857 java_thread->obj_field_put(_name_offset, name); | |
| 858 } | |
| 859 | |
| 860 | |
| 861 ThreadPriority java_lang_Thread::priority(oop java_thread) { | |
| 862 return (ThreadPriority)java_thread->int_field(_priority_offset); | |
| 863 } | |
| 864 | |
| 865 | |
| 866 void java_lang_Thread::set_priority(oop java_thread, ThreadPriority priority) { | |
| 867 java_thread->int_field_put(_priority_offset, priority); | |
| 868 } | |
| 869 | |
| 870 | |
| 871 oop java_lang_Thread::threadGroup(oop java_thread) { | |
| 872 return java_thread->obj_field(_group_offset); | |
| 873 } | |
| 874 | |
| 875 | |
| 876 bool java_lang_Thread::is_stillborn(oop java_thread) { | |
| 877 return java_thread->bool_field(_stillborn_offset) != 0; | |
| 878 } | |
| 879 | |
| 880 | |
| 881 // We never have reason to turn the stillborn bit off | |
| 882 void java_lang_Thread::set_stillborn(oop java_thread) { | |
| 883 java_thread->bool_field_put(_stillborn_offset, true); | |
| 884 } | |
| 885 | |
| 886 | |
| 887 bool java_lang_Thread::is_alive(oop java_thread) { | |
| 888 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
| 889 return (thr != NULL); | |
| 890 } | |
| 891 | |
| 892 | |
| 893 bool java_lang_Thread::is_daemon(oop java_thread) { | |
| 894 return java_thread->bool_field(_daemon_offset) != 0; | |
| 895 } | |
| 896 | |
| 897 | |
| 898 void java_lang_Thread::set_daemon(oop java_thread) { | |
| 899 java_thread->bool_field_put(_daemon_offset, true); | |
| 900 } | |
| 901 | |
| 902 oop java_lang_Thread::context_class_loader(oop java_thread) { | |
| 903 return java_thread->obj_field(_contextClassLoader_offset); | |
| 904 } | |
| 905 | |
| 906 oop java_lang_Thread::inherited_access_control_context(oop java_thread) { | |
| 907 return java_thread->obj_field(_inheritedAccessControlContext_offset); | |
| 908 } | |
| 909 | |
| 910 | |
| 911 jlong java_lang_Thread::stackSize(oop java_thread) { | |
| 912 // The stackSize field is only present starting in 1.4 | |
| 913 if (_stackSize_offset > 0) { | |
| 914 assert(JDK_Version::is_gte_jdk14x_version(), "sanity check"); | |
| 915 return java_thread->long_field(_stackSize_offset); | |
| 916 } else { | |
| 917 return 0; | |
| 918 } | |
| 919 } | |
| 920 | |
| 921 // Write the thread status value to threadStatus field in java.lang.Thread java class. | |
| 922 void java_lang_Thread::set_thread_status(oop java_thread, | |
| 923 java_lang_Thread::ThreadStatus status) { | |
| 924 assert(JavaThread::current()->thread_state() == _thread_in_vm, "Java Thread is not running in vm"); | |
| 925 // The threadStatus is only present starting in 1.5 | |
| 926 if (_thread_status_offset > 0) { | |
| 927 java_thread->int_field_put(_thread_status_offset, status); | |
| 928 } | |
| 929 } | |
| 930 | |
| 931 // Read thread status value from threadStatus field in java.lang.Thread java class. | |
| 932 java_lang_Thread::ThreadStatus java_lang_Thread::get_thread_status(oop java_thread) { | |
| 933 assert(Thread::current()->is_VM_thread() || | |
| 934 JavaThread::current()->thread_state() == _thread_in_vm, | |
| 935 "Java Thread is not running in vm"); | |
| 936 // The threadStatus is only present starting in 1.5 | |
| 937 if (_thread_status_offset > 0) { | |
| 938 return (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
| 939 } else { | |
| 940 // All we can easily figure out is if it is alive, but that is | |
| 941 // enough info for a valid unknown status. | |
| 942 // These aren't restricted to valid set ThreadStatus values, so | |
| 943 // use JVMTI values and cast. | |
| 944 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
| 945 if (thr == NULL) { | |
| 946 // the thread hasn't run yet or is in the process of exiting | |
| 947 return NEW; | |
| 948 } | |
| 949 return (java_lang_Thread::ThreadStatus)JVMTI_THREAD_STATE_ALIVE; | |
| 950 } | |
| 951 } | |
| 952 | |
| 953 | |
| 954 jlong java_lang_Thread::thread_id(oop java_thread) { | |
| 955 // The thread ID field is only present starting in 1.5 | |
| 956 if (_tid_offset > 0) { | |
| 957 return java_thread->long_field(_tid_offset); | |
| 958 } else { | |
| 959 return 0; | |
| 960 } | |
| 961 } | |
| 962 | |
| 963 oop java_lang_Thread::park_blocker(oop java_thread) { | |
| 242 | 964 assert(JDK_Version::current().supports_thread_park_blocker() && |
| 965 _park_blocker_offset != 0, "Must support parkBlocker field"); | |
| 0 | 966 |
| 967 if (_park_blocker_offset > 0) { | |
| 968 return java_thread->obj_field(_park_blocker_offset); | |
| 969 } | |
| 970 | |
| 971 return NULL; | |
| 972 } | |
| 973 | |
| 974 jlong java_lang_Thread::park_event(oop java_thread) { | |
| 975 if (_park_event_offset > 0) { | |
| 976 return java_thread->long_field(_park_event_offset); | |
| 977 } | |
| 978 return 0; | |
| 979 } | |
| 980 | |
| 981 bool java_lang_Thread::set_park_event(oop java_thread, jlong ptr) { | |
| 982 if (_park_event_offset > 0) { | |
| 983 java_thread->long_field_put(_park_event_offset, ptr); | |
| 984 return true; | |
| 985 } | |
| 986 return false; | |
| 987 } | |
| 988 | |
| 989 | |
| 990 const char* java_lang_Thread::thread_status_name(oop java_thread) { | |
| 991 assert(JDK_Version::is_gte_jdk15x_version() && _thread_status_offset != 0, "Must have thread status"); | |
| 992 ThreadStatus status = (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
| 993 switch (status) { | |
| 994 case NEW : return "NEW"; | |
| 995 case RUNNABLE : return "RUNNABLE"; | |
| 996 case SLEEPING : return "TIMED_WAITING (sleeping)"; | |
| 997 case IN_OBJECT_WAIT : return "WAITING (on object monitor)"; | |
| 998 case IN_OBJECT_WAIT_TIMED : return "TIMED_WAITING (on object monitor)"; | |
| 999 case PARKED : return "WAITING (parking)"; | |
| 1000 case PARKED_TIMED : return "TIMED_WAITING (parking)"; | |
| 1001 case BLOCKED_ON_MONITOR_ENTER : return "BLOCKED (on object monitor)"; | |
| 1002 case TERMINATED : return "TERMINATED"; | |
| 1003 default : return "UNKNOWN"; | |
| 1004 }; | |
| 1005 } | |
| 1006 int java_lang_ThreadGroup::_parent_offset = 0; | |
| 1007 int java_lang_ThreadGroup::_name_offset = 0; | |
| 1008 int java_lang_ThreadGroup::_threads_offset = 0; | |
| 1009 int java_lang_ThreadGroup::_groups_offset = 0; | |
| 1010 int java_lang_ThreadGroup::_maxPriority_offset = 0; | |
| 1011 int java_lang_ThreadGroup::_destroyed_offset = 0; | |
| 1012 int java_lang_ThreadGroup::_daemon_offset = 0; | |
| 1013 int java_lang_ThreadGroup::_vmAllowSuspension_offset = 0; | |
| 1014 int java_lang_ThreadGroup::_nthreads_offset = 0; | |
| 1015 int java_lang_ThreadGroup::_ngroups_offset = 0; | |
| 1016 | |
| 1017 oop java_lang_ThreadGroup::parent(oop java_thread_group) { | |
| 1018 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1019 return java_thread_group->obj_field(_parent_offset); | |
| 1020 } | |
| 1021 | |
| 1022 // ("name as oop" accessor is not necessary) | |
| 1023 | |
| 1024 typeArrayOop java_lang_ThreadGroup::name(oop java_thread_group) { | |
| 1025 oop name = java_thread_group->obj_field(_name_offset); | |
| 1026 // ThreadGroup.name can be null | |
| 1027 return name == NULL ? (typeArrayOop)NULL : java_lang_String::value(name); | |
| 1028 } | |
| 1029 | |
| 1030 int java_lang_ThreadGroup::nthreads(oop java_thread_group) { | |
| 1031 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1032 return java_thread_group->int_field(_nthreads_offset); | |
| 1033 } | |
| 1034 | |
| 1035 objArrayOop java_lang_ThreadGroup::threads(oop java_thread_group) { | |
| 1036 oop threads = java_thread_group->obj_field(_threads_offset); | |
| 1037 assert(threads != NULL, "threadgroups should have threads"); | |
| 1038 assert(threads->is_objArray(), "just checking"); // Todo: Add better type checking code | |
| 1039 return objArrayOop(threads); | |
| 1040 } | |
| 1041 | |
| 1042 int java_lang_ThreadGroup::ngroups(oop java_thread_group) { | |
| 1043 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1044 return java_thread_group->int_field(_ngroups_offset); | |
| 1045 } | |
| 1046 | |
| 1047 objArrayOop java_lang_ThreadGroup::groups(oop java_thread_group) { | |
| 1048 oop groups = java_thread_group->obj_field(_groups_offset); | |
| 1049 assert(groups == NULL || groups->is_objArray(), "just checking"); // Todo: Add better type checking code | |
| 1050 return objArrayOop(groups); | |
| 1051 } | |
| 1052 | |
| 1053 ThreadPriority java_lang_ThreadGroup::maxPriority(oop java_thread_group) { | |
| 1054 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1055 return (ThreadPriority) java_thread_group->int_field(_maxPriority_offset); | |
| 1056 } | |
| 1057 | |
| 1058 bool java_lang_ThreadGroup::is_destroyed(oop java_thread_group) { | |
| 1059 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1060 return java_thread_group->bool_field(_destroyed_offset) != 0; | |
| 1061 } | |
| 1062 | |
| 1063 bool java_lang_ThreadGroup::is_daemon(oop java_thread_group) { | |
| 1064 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1065 return java_thread_group->bool_field(_daemon_offset) != 0; | |
| 1066 } | |
| 1067 | |
| 1068 bool java_lang_ThreadGroup::is_vmAllowSuspension(oop java_thread_group) { | |
| 1069 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1070 return java_thread_group->bool_field(_vmAllowSuspension_offset) != 0; | |
| 1071 } | |
| 1072 | |
| 1073 void java_lang_ThreadGroup::compute_offsets() { | |
| 1074 assert(_parent_offset == 0, "offsets should be initialized only once"); | |
| 1075 | |
| 1142 | 1076 klassOop k = SystemDictionary::ThreadGroup_klass(); |
| 0 | 1077 |
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1078 compute_offset(_parent_offset, k, vmSymbols::parent_name(), vmSymbols::threadgroup_signature()); |
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1079 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1080 compute_offset(_threads_offset, k, vmSymbols::threads_name(), vmSymbols::thread_array_signature()); |
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1081 compute_offset(_groups_offset, k, vmSymbols::groups_name(), vmSymbols::threadgroup_array_signature()); |
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1082 compute_offset(_maxPriority_offset, k, vmSymbols::maxPriority_name(), vmSymbols::int_signature()); |
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1083 compute_offset(_destroyed_offset, k, vmSymbols::destroyed_name(), vmSymbols::bool_signature()); |
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1084 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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1085 compute_offset(_vmAllowSuspension_offset, k, vmSymbols::vmAllowSuspension_name(), vmSymbols::bool_signature()); |
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1086 compute_offset(_nthreads_offset, k, vmSymbols::nthreads_name(), vmSymbols::int_signature()); |
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1087 compute_offset(_ngroups_offset, k, vmSymbols::ngroups_name(), vmSymbols::int_signature()); |
| 0 | 1088 } |
| 1089 | |
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1090 oop java_lang_Throwable::unassigned_stacktrace() { |
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1091 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Throwable_klass()); |
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1092 address addr = ik->static_field_addr(static_unassigned_stacktrace_offset); |
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1093 if (UseCompressedOops) { |
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1094 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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1095 } else { |
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1096 return oopDesc::load_decode_heap_oop((oop*)addr); |
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1097 } |
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1098 } |
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1099 |
| 0 | 1100 oop java_lang_Throwable::backtrace(oop throwable) { |
| 1101 return throwable->obj_field_acquire(backtrace_offset); | |
| 1102 } | |
| 1103 | |
| 1104 | |
| 1105 void java_lang_Throwable::set_backtrace(oop throwable, oop value) { | |
| 1106 throwable->release_obj_field_put(backtrace_offset, value); | |
| 1107 } | |
| 1108 | |
| 1109 | |
| 1110 oop java_lang_Throwable::message(oop throwable) { | |
| 1111 return throwable->obj_field(detailMessage_offset); | |
| 1112 } | |
| 1113 | |
| 1114 | |
| 1115 oop java_lang_Throwable::message(Handle throwable) { | |
| 1116 return throwable->obj_field(detailMessage_offset); | |
| 1117 } | |
| 1118 | |
| 1119 | |
| 1120 void java_lang_Throwable::set_message(oop throwable, oop value) { | |
| 1121 throwable->obj_field_put(detailMessage_offset, value); | |
| 1122 } | |
| 1123 | |
| 1124 | |
|
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1125 void java_lang_Throwable::set_stacktrace(oop throwable, oop st_element_array) { |
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1126 throwable->obj_field_put(stackTrace_offset, st_element_array); |
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1127 } |
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1128 |
| 0 | 1129 void java_lang_Throwable::clear_stacktrace(oop throwable) { |
| 1130 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
|
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1131 set_stacktrace(throwable, NULL); |
| 0 | 1132 } |
| 1133 | |
| 1134 | |
| 1135 void java_lang_Throwable::print(oop throwable, outputStream* st) { | |
| 1136 ResourceMark rm; | |
| 1137 klassOop k = throwable->klass(); | |
| 1138 assert(k != NULL, "just checking"); | |
| 1139 st->print("%s", instanceKlass::cast(k)->external_name()); | |
| 1140 oop msg = message(throwable); | |
| 1141 if (msg != NULL) { | |
| 1142 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
| 1143 } | |
| 1144 } | |
| 1145 | |
| 1146 | |
| 1147 void java_lang_Throwable::print(Handle throwable, outputStream* st) { | |
| 1148 ResourceMark rm; | |
| 1149 klassOop k = throwable->klass(); | |
| 1150 assert(k != NULL, "just checking"); | |
| 1151 st->print("%s", instanceKlass::cast(k)->external_name()); | |
| 1152 oop msg = message(throwable); | |
| 1153 if (msg != NULL) { | |
| 1154 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
| 1155 } | |
| 1156 } | |
| 1157 | |
| 1158 // Print stack trace element to resource allocated buffer | |
| 1159 char* java_lang_Throwable::print_stack_element_to_buffer(methodOop method, int bci) { | |
| 1160 // Get strings and string lengths | |
| 1161 instanceKlass* klass = instanceKlass::cast(method->method_holder()); | |
| 1162 const char* klass_name = klass->external_name(); | |
| 1163 int buf_len = (int)strlen(klass_name); | |
| 1164 char* source_file_name; | |
| 1165 if (klass->source_file_name() == NULL) { | |
| 1166 source_file_name = NULL; | |
| 1167 } else { | |
| 1168 source_file_name = klass->source_file_name()->as_C_string(); | |
| 1169 buf_len += (int)strlen(source_file_name); | |
| 1170 } | |
| 1171 char* method_name = method->name()->as_C_string(); | |
| 1172 buf_len += (int)strlen(method_name); | |
| 1173 | |
| 1174 // Allocate temporary buffer with extra space for formatting and line number | |
| 1175 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64); | |
| 1176 | |
| 1177 // Print stack trace line in buffer | |
| 1178 sprintf(buf, "\tat %s.%s", klass_name, method_name); | |
| 1179 if (method->is_native()) { | |
| 1180 strcat(buf, "(Native Method)"); | |
| 1181 } else { | |
| 1182 int line_number = method->line_number_from_bci(bci); | |
| 1183 if (source_file_name != NULL && (line_number != -1)) { | |
| 1184 // Sourcename and linenumber | |
| 1185 sprintf(buf + (int)strlen(buf), "(%s:%d)", source_file_name, line_number); | |
| 1186 } else if (source_file_name != NULL) { | |
| 1187 // Just sourcename | |
| 1188 sprintf(buf + (int)strlen(buf), "(%s)", source_file_name); | |
| 1189 } else { | |
| 1190 // Neither soucename and linenumber | |
| 1191 sprintf(buf + (int)strlen(buf), "(Unknown Source)"); | |
| 1192 } | |
| 1193 nmethod* nm = method->code(); | |
| 1194 if (WizardMode && nm != NULL) { | |
| 3960 | 1195 sprintf(buf + (int)strlen(buf), "(nmethod " INTPTR_FORMAT ")", (intptr_t)nm); |
| 0 | 1196 } |
| 1197 } | |
| 1198 | |
| 1199 return buf; | |
| 1200 } | |
| 1201 | |
| 1202 | |
| 1203 void java_lang_Throwable::print_stack_element(Handle stream, methodOop method, int bci) { | |
| 1204 ResourceMark rm; | |
| 1205 char* buf = print_stack_element_to_buffer(method, bci); | |
| 1206 print_to_stream(stream, buf); | |
| 1207 } | |
| 1208 | |
| 1209 void java_lang_Throwable::print_stack_element(outputStream *st, methodOop method, int bci) { | |
| 1210 ResourceMark rm; | |
| 1211 char* buf = print_stack_element_to_buffer(method, bci); | |
| 1212 st->print_cr("%s", buf); | |
| 1213 } | |
| 1214 | |
| 1215 void java_lang_Throwable::print_to_stream(Handle stream, const char* str) { | |
| 1216 if (stream.is_null()) { | |
| 1217 tty->print_cr("%s", str); | |
| 1218 } else { | |
| 1219 EXCEPTION_MARK; | |
| 1220 JavaValue result(T_VOID); | |
| 1221 Handle arg (THREAD, oopFactory::new_charArray(str, THREAD)); | |
| 1222 if (!HAS_PENDING_EXCEPTION) { | |
| 1223 JavaCalls::call_virtual(&result, | |
| 1224 stream, | |
| 1225 KlassHandle(THREAD, stream->klass()), | |
|
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1226 vmSymbols::println_name(), |
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|
1227 vmSymbols::char_array_void_signature(), |
| 0 | 1228 arg, |
| 1229 THREAD); | |
| 1230 } | |
| 1231 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
| 1232 if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION; | |
| 1233 } | |
| 1234 | |
| 1235 } | |
| 1236 | |
| 1237 | |
| 1238 const char* java_lang_Throwable::no_stack_trace_message() { | |
| 1239 return "\t<<no stack trace available>>"; | |
| 1240 } | |
| 1241 | |
| 1242 | |
| 1243 // Currently used only for exceptions occurring during startup | |
| 1244 void java_lang_Throwable::print_stack_trace(oop throwable, outputStream* st) { | |
| 1245 Thread *THREAD = Thread::current(); | |
| 1246 Handle h_throwable(THREAD, throwable); | |
| 1247 while (h_throwable.not_null()) { | |
| 1248 objArrayHandle result (THREAD, objArrayOop(backtrace(h_throwable()))); | |
| 1249 if (result.is_null()) { | |
| 1250 st->print_cr(no_stack_trace_message()); | |
| 1251 return; | |
| 1252 } | |
| 1253 | |
| 1254 while (result.not_null()) { | |
| 1255 objArrayHandle methods (THREAD, | |
| 1256 objArrayOop(result->obj_at(trace_methods_offset))); | |
| 1257 typeArrayHandle bcis (THREAD, | |
| 1258 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
| 1259 | |
| 1260 if (methods.is_null() || bcis.is_null()) { | |
| 1261 st->print_cr(no_stack_trace_message()); | |
| 1262 return; | |
| 1263 } | |
| 1264 | |
| 1265 int length = methods()->length(); | |
| 1266 for (int index = 0; index < length; index++) { | |
| 1267 methodOop method = methodOop(methods()->obj_at(index)); | |
| 1268 if (method == NULL) goto handle_cause; | |
| 1269 int bci = bcis->ushort_at(index); | |
| 1270 print_stack_element(st, method, bci); | |
| 1271 } | |
| 1272 result = objArrayHandle(THREAD, objArrayOop(result->obj_at(trace_next_offset))); | |
| 1273 } | |
| 1274 handle_cause: | |
| 1275 { | |
| 1276 EXCEPTION_MARK; | |
| 1277 JavaValue result(T_OBJECT); | |
| 1278 JavaCalls::call_virtual(&result, | |
| 1279 h_throwable, | |
| 1280 KlassHandle(THREAD, h_throwable->klass()), | |
|
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1281 vmSymbols::getCause_name(), |
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|
1282 vmSymbols::void_throwable_signature(), |
| 0 | 1283 THREAD); |
| 1284 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
| 1285 if (HAS_PENDING_EXCEPTION) { | |
| 1286 CLEAR_PENDING_EXCEPTION; | |
| 1287 h_throwable = Handle(); | |
| 1288 } else { | |
| 1289 h_throwable = Handle(THREAD, (oop) result.get_jobject()); | |
| 1290 if (h_throwable.not_null()) { | |
| 1291 st->print("Caused by: "); | |
| 1292 print(h_throwable, st); | |
| 1293 st->cr(); | |
| 1294 } | |
| 1295 } | |
| 1296 } | |
| 1297 } | |
| 1298 } | |
| 1299 | |
| 1300 | |
| 1301 void java_lang_Throwable::print_stack_trace(oop throwable, oop print_stream) { | |
| 1302 // Note: this is no longer used in Merlin, but we support it for compatibility. | |
| 1303 Thread *thread = Thread::current(); | |
| 1304 Handle stream(thread, print_stream); | |
| 1305 objArrayHandle result (thread, objArrayOop(backtrace(throwable))); | |
| 1306 if (result.is_null()) { | |
| 1307 print_to_stream(stream, no_stack_trace_message()); | |
| 1308 return; | |
| 1309 } | |
| 1310 | |
| 1311 while (result.not_null()) { | |
| 1312 objArrayHandle methods (thread, | |
| 1313 objArrayOop(result->obj_at(trace_methods_offset))); | |
| 1314 typeArrayHandle bcis (thread, | |
| 1315 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
| 1316 | |
| 1317 if (methods.is_null() || bcis.is_null()) { | |
| 1318 print_to_stream(stream, no_stack_trace_message()); | |
| 1319 return; | |
| 1320 } | |
| 1321 | |
| 1322 int length = methods()->length(); | |
| 1323 for (int index = 0; index < length; index++) { | |
| 1324 methodOop method = methodOop(methods()->obj_at(index)); | |
| 1325 if (method == NULL) return; | |
| 1326 int bci = bcis->ushort_at(index); | |
| 1327 print_stack_element(stream, method, bci); | |
| 1328 } | |
| 1329 result = objArrayHandle(thread, objArrayOop(result->obj_at(trace_next_offset))); | |
| 1330 } | |
| 1331 } | |
| 1332 | |
| 1333 // This class provides a simple wrapper over the internal structure of | |
| 1334 // exception backtrace to insulate users of the backtrace from needing | |
| 1335 // to know what it looks like. | |
| 1336 class BacktraceBuilder: public StackObj { | |
| 1337 private: | |
| 1338 Handle _backtrace; | |
| 1339 objArrayOop _head; | |
| 1340 objArrayOop _methods; | |
| 1341 typeArrayOop _bcis; | |
| 1342 int _index; | |
| 1343 No_Safepoint_Verifier _nsv; | |
| 1344 | |
| 1345 public: | |
| 1346 | |
| 1347 enum { | |
| 1348 trace_methods_offset = java_lang_Throwable::trace_methods_offset, | |
| 1349 trace_bcis_offset = java_lang_Throwable::trace_bcis_offset, | |
| 1350 trace_next_offset = java_lang_Throwable::trace_next_offset, | |
| 1351 trace_size = java_lang_Throwable::trace_size, | |
| 1352 trace_chunk_size = java_lang_Throwable::trace_chunk_size | |
| 1353 }; | |
| 1354 | |
| 1355 // constructor for new backtrace | |
|
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1356 BacktraceBuilder(TRAPS): _methods(NULL), _bcis(NULL), _head(NULL) { |
| 0 | 1357 expand(CHECK); |
| 1358 _backtrace = _head; | |
| 1359 _index = 0; | |
| 1360 } | |
| 1361 | |
| 1362 void expand(TRAPS) { | |
| 1363 objArrayHandle old_head(THREAD, _head); | |
| 1364 Pause_No_Safepoint_Verifier pnsv(&_nsv); | |
| 1365 | |
| 1366 objArrayOop head = oopFactory::new_objectArray(trace_size, CHECK); | |
| 1367 objArrayHandle new_head(THREAD, head); | |
| 1368 | |
| 1369 objArrayOop methods = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
| 1370 objArrayHandle new_methods(THREAD, methods); | |
| 1371 | |
| 1372 typeArrayOop bcis = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
| 1373 typeArrayHandle new_bcis(THREAD, bcis); | |
| 1374 | |
| 1375 if (!old_head.is_null()) { | |
| 1376 old_head->obj_at_put(trace_next_offset, new_head()); | |
| 1377 } | |
| 1378 new_head->obj_at_put(trace_methods_offset, new_methods()); | |
| 1379 new_head->obj_at_put(trace_bcis_offset, new_bcis()); | |
| 1380 | |
| 1381 _head = new_head(); | |
| 1382 _methods = new_methods(); | |
| 1383 _bcis = new_bcis(); | |
| 1384 _index = 0; | |
| 1385 } | |
| 1386 | |
| 1387 oop backtrace() { | |
| 1388 return _backtrace(); | |
| 1389 } | |
| 1390 | |
|
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1391 inline void push(methodOop method, int bci, TRAPS) { |
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1392 // Smear the -1 bci to 0 since the array only holds unsigned |
|
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1393 // shorts. The later line number lookup would just smear the -1 |
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1394 // to a 0 even if it could be recorded. |
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1395 if (bci == SynchronizationEntryBCI) bci = 0; |
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1396 assert(bci == (jushort)bci, "doesn't fit"); |
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1397 |
| 0 | 1398 if (_index >= trace_chunk_size) { |
| 1399 methodHandle mhandle(THREAD, method); | |
| 1400 expand(CHECK); | |
| 1401 method = mhandle(); | |
| 1402 } | |
| 1403 | |
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1404 _methods->obj_at_put(_index, method); |
| 0 | 1405 _bcis->ushort_at_put(_index, bci); |
| 1406 _index++; | |
| 1407 } | |
| 1408 | |
| 1409 methodOop current_method() { | |
| 1410 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
| 1411 return methodOop(_methods->obj_at(_index)); | |
| 1412 } | |
| 1413 | |
| 1414 jushort current_bci() { | |
| 1415 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
| 1416 return _bcis->ushort_at(_index); | |
| 1417 } | |
| 1418 }; | |
| 1419 | |
| 1420 | |
|
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1421 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method, TRAPS) { |
| 0 | 1422 if (!StackTraceInThrowable) return; |
| 1423 ResourceMark rm(THREAD); | |
| 1424 | |
| 1425 // Start out by clearing the backtrace for this object, in case the VM | |
| 1426 // runs out of memory while allocating the stack trace | |
| 1427 set_backtrace(throwable(), NULL); | |
| 1428 if (JDK_Version::is_gte_jdk14x_version()) { | |
| 1429 // New since 1.4, clear lazily constructed Java level stacktrace if | |
| 1430 // refilling occurs | |
|
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1431 // This is unnecessary in 1.7+ but harmless |
| 0 | 1432 clear_stacktrace(throwable()); |
| 1433 } | |
| 1434 | |
| 1435 int max_depth = MaxJavaStackTraceDepth; | |
| 1436 JavaThread* thread = (JavaThread*)THREAD; | |
| 1437 BacktraceBuilder bt(CHECK); | |
| 1438 | |
|
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1439 // If there is no Java frame just return the method that was being called |
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1440 // with bci 0 |
|
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1441 if (!thread->has_last_Java_frame()) { |
|
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1442 if (max_depth >= 1 && method() != NULL) { |
|
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1443 bt.push(method(), 0, CHECK); |
|
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1444 set_backtrace(throwable(), bt.backtrace()); |
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1445 } |
|
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1446 return; |
|
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1447 } |
|
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1448 |
| 0 | 1449 // Instead of using vframe directly, this version of fill_in_stack_trace |
| 1450 // basically handles everything by hand. This significantly improved the | |
| 1451 // speed of this method call up to 28.5% on Solaris sparc. 27.1% on Windows. | |
| 1452 // See bug 6333838 for more details. | |
| 1453 // The "ASSERT" here is to verify this method generates the exactly same stack | |
| 1454 // trace as utilizing vframe. | |
| 1455 #ifdef ASSERT | |
| 1456 vframeStream st(thread); | |
| 1457 methodHandle st_method(THREAD, st.method()); | |
| 1458 #endif | |
| 1459 int total_count = 0; | |
| 1460 RegisterMap map(thread, false); | |
| 1461 int decode_offset = 0; | |
| 1462 nmethod* nm = NULL; | |
| 1463 bool skip_fillInStackTrace_check = false; | |
| 1464 bool skip_throwableInit_check = false; | |
|
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1465 bool skip_hidden = false; |
| 0 | 1466 |
| 1467 for (frame fr = thread->last_frame(); max_depth != total_count;) { | |
| 1468 methodOop method = NULL; | |
| 1469 int bci = 0; | |
| 1470 | |
| 1471 // Compiled java method case. | |
| 1472 if (decode_offset != 0) { | |
| 1473 DebugInfoReadStream stream(nm, decode_offset); | |
| 1474 decode_offset = stream.read_int(); | |
| 1475 method = (methodOop)nm->oop_at(stream.read_int()); | |
|
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|
1476 bci = stream.read_bci(); |
| 0 | 1477 } else { |
| 1478 if (fr.is_first_frame()) break; | |
| 1479 address pc = fr.pc(); | |
| 1480 if (fr.is_interpreted_frame()) { | |
| 1481 intptr_t bcx = fr.interpreter_frame_bcx(); | |
| 1482 method = fr.interpreter_frame_method(); | |
| 1483 bci = fr.is_bci(bcx) ? bcx : method->bci_from((address)bcx); | |
| 1484 fr = fr.sender(&map); | |
| 1485 } else { | |
| 1486 CodeBlob* cb = fr.cb(); | |
| 1487 // HMMM QQQ might be nice to have frame return nm as NULL if cb is non-NULL | |
| 1488 // but non nmethod | |
| 1489 fr = fr.sender(&map); | |
| 1490 if (cb == NULL || !cb->is_nmethod()) { | |
| 1491 continue; | |
| 1492 } | |
| 1493 nm = (nmethod*)cb; | |
| 1494 if (nm->method()->is_native()) { | |
| 1495 method = nm->method(); | |
| 1496 bci = 0; | |
| 1497 } else { | |
| 1498 PcDesc* pd = nm->pc_desc_at(pc); | |
| 1499 decode_offset = pd->scope_decode_offset(); | |
| 1500 // if decode_offset is not equal to 0, it will execute the | |
| 1501 // "compiled java method case" at the beginning of the loop. | |
| 1502 continue; | |
| 1503 } | |
| 1504 } | |
| 1505 } | |
| 1506 #ifdef ASSERT | |
|
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1507 assert(st_method() == method && st.bci() == bci, |
|
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|
1508 "Wrong stack trace"); |
|
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|
1509 st.next(); |
|
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|
1510 // vframeStream::method isn't GC-safe so store off a copy |
|
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1511 // of the methodOop in case we GC. |
|
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|
1512 if (!st.at_end()) { |
|
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|
1513 st_method = st.method(); |
|
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|
1514 } |
| 0 | 1515 #endif |
|
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|
1516 |
|
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|
1517 // the format of the stacktrace will be: |
|
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|
1518 // - 1 or more fillInStackTrace frames for the exception class (skipped) |
|
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1519 // - 0 or more <init> methods for the exception class (skipped) |
|
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|
1520 // - rest of the stack |
|
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|
1521 |
| 0 | 1522 if (!skip_fillInStackTrace_check) { |
|
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|
1523 if ((method->name() == vmSymbols::fillInStackTrace_name() || |
|
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|
1524 method->name() == vmSymbols::fillInStackTrace0_name()) && |
|
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|
1525 throwable->is_a(method->method_holder())) { |
| 0 | 1526 continue; |
| 1527 } | |
|
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|
1528 else { |
|
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|
1529 skip_fillInStackTrace_check = true; // gone past them all |
|
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|
1530 } |
| 0 | 1531 } |
| 1532 if (!skip_throwableInit_check) { | |
|
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|
1533 assert(skip_fillInStackTrace_check, "logic error in backtrace filtering"); |
|
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|
1534 |
|
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|
1535 // skip <init> methods of the exception class and superclasses |
|
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|
1536 // This is simlar to classic VM. |
| 0 | 1537 if (method->name() == vmSymbols::object_initializer_name() && |
| 1538 throwable->is_a(method->method_holder())) { | |
| 1539 continue; | |
| 1540 } else { | |
|
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|
1541 // there are none or we've seen them all - either way stop checking |
| 0 | 1542 skip_throwableInit_check = true; |
| 1543 } | |
| 1544 } | |
|
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1545 if (method->is_hidden()) { |
|
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|
1546 if (skip_hidden) continue; |
|
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|
1547 } else { |
|
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|
1548 // start skipping hidden frames after first non-hidden frame |
|
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|
1549 skip_hidden = !ShowHiddenFrames; |
|
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|
1550 } |
| 0 | 1551 bt.push(method, bci, CHECK); |
| 1552 total_count++; | |
| 1553 } | |
| 1554 | |
| 1555 // Put completed stack trace into throwable object | |
| 1556 set_backtrace(throwable(), bt.backtrace()); | |
| 1557 } | |
| 1558 | |
|
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|
1559 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method) { |
| 0 | 1560 // No-op if stack trace is disabled |
| 1561 if (!StackTraceInThrowable) { | |
| 1562 return; | |
| 1563 } | |
| 1564 | |
| 1565 // Disable stack traces for some preallocated out of memory errors | |
| 1566 if (!Universe::should_fill_in_stack_trace(throwable)) { | |
| 1567 return; | |
| 1568 } | |
| 1569 | |
| 1570 PRESERVE_EXCEPTION_MARK; | |
| 1571 | |
| 1572 JavaThread* thread = JavaThread::active(); | |
|
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|
1573 fill_in_stack_trace(throwable, method, thread); |
| 0 | 1574 // ignore exceptions thrown during stack trace filling |
| 1575 CLEAR_PENDING_EXCEPTION; | |
| 1576 } | |
| 1577 | |
| 1578 void java_lang_Throwable::allocate_backtrace(Handle throwable, TRAPS) { | |
| 1579 // Allocate stack trace - backtrace is created but not filled in | |
| 1580 | |
| 1581 // No-op if stack trace is disabled | |
| 1582 if (!StackTraceInThrowable) return; | |
| 1583 | |
| 1584 objArrayOop h_oop = oopFactory::new_objectArray(trace_size, CHECK); | |
| 1585 objArrayHandle backtrace (THREAD, h_oop); | |
| 1586 objArrayOop m_oop = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
| 1587 objArrayHandle methods (THREAD, m_oop); | |
| 1588 typeArrayOop b = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
| 1589 typeArrayHandle bcis(THREAD, b); | |
| 1590 | |
| 1591 // backtrace has space for one chunk (next is NULL) | |
| 1592 backtrace->obj_at_put(trace_methods_offset, methods()); | |
| 1593 backtrace->obj_at_put(trace_bcis_offset, bcis()); | |
| 1594 set_backtrace(throwable(), backtrace()); | |
| 1595 } | |
| 1596 | |
| 1597 | |
| 1598 void java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(Handle throwable) { | |
| 1599 // Fill in stack trace into preallocated backtrace (no GC) | |
| 1600 | |
| 1601 // No-op if stack trace is disabled | |
| 1602 if (!StackTraceInThrowable) return; | |
| 1603 | |
| 1142 | 1604 assert(throwable->is_a(SystemDictionary::Throwable_klass()), "sanity check"); |
| 0 | 1605 |
| 1606 oop backtrace = java_lang_Throwable::backtrace(throwable()); | |
| 1607 assert(backtrace != NULL, "backtrace not preallocated"); | |
| 1608 | |
| 1609 oop m = objArrayOop(backtrace)->obj_at(trace_methods_offset); | |
| 1610 objArrayOop methods = objArrayOop(m); | |
| 1611 assert(methods != NULL && methods->length() > 0, "method array not preallocated"); | |
| 1612 | |
| 1613 oop b = objArrayOop(backtrace)->obj_at(trace_bcis_offset); | |
| 1614 typeArrayOop bcis = typeArrayOop(b); | |
| 1615 assert(bcis != NULL, "bci array not preallocated"); | |
| 1616 | |
| 1617 assert(methods->length() == bcis->length(), "method and bci arrays should match"); | |
| 1618 | |
| 1619 JavaThread* thread = JavaThread::current(); | |
| 1620 ResourceMark rm(thread); | |
| 1621 vframeStream st(thread); | |
| 1622 | |
| 1623 // Unlike fill_in_stack_trace we do not skip fillInStackTrace or throwable init | |
| 1624 // methods as preallocated errors aren't created by "java" code. | |
| 1625 | |
| 1626 // fill in as much stack trace as possible | |
| 1627 int max_chunks = MIN2(methods->length(), (int)MaxJavaStackTraceDepth); | |
| 1628 int chunk_count = 0; | |
| 1629 | |
| 1630 for (;!st.at_end(); st.next()) { | |
|
4817
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|
1631 // Add entry and smear the -1 bci to 0 since the array only holds |
|
a81f60ddab06
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|
1632 // unsigned shorts. The later line number lookup would just smear |
|
a81f60ddab06
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|
1633 // the -1 to a 0 even if it could be recorded. |
|
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|
1634 int bci = st.bci(); |
|
a81f60ddab06
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4009
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changeset
|
1635 if (bci == SynchronizationEntryBCI) bci = 0; |
|
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|
1636 assert(bci == (jushort)bci, "doesn't fit"); |
|
a81f60ddab06
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diff
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|
1637 bcis->ushort_at_put(chunk_count, bci); |
| 0 | 1638 methods->obj_at_put(chunk_count, st.method()); |
| 1639 | |
| 1640 chunk_count++; | |
| 1641 | |
| 1642 // Bail-out for deep stacks | |
| 1643 if (chunk_count >= max_chunks) break; | |
| 1644 } | |
|
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|
1645 |
|
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3795
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|
1646 // For Java 7+ we support the Throwable immutability protocol defined for Java 7. This support |
|
0b80db433fcb
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3795
diff
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|
1647 // was missing in 7u0 so in 7u0 there is a workaround in the Throwable class. That workaround |
|
0b80db433fcb
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diff
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|
1648 // can be removed in a JDK using this JVM version |
|
0b80db433fcb
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diff
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|
1649 if (JDK_Version::is_gte_jdk17x_version()) { |
|
0b80db433fcb
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diff
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|
1650 java_lang_Throwable::set_stacktrace(throwable(), java_lang_Throwable::unassigned_stacktrace()); |
|
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|
1651 assert(java_lang_Throwable::unassigned_stacktrace() != NULL, "not initialized"); |
|
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|
1652 } |
|
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|
1653 |
| 0 | 1654 } |
| 1655 | |
| 1656 | |
| 1657 int java_lang_Throwable::get_stack_trace_depth(oop throwable, TRAPS) { | |
| 1658 if (throwable == NULL) { | |
| 1659 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
| 1660 } | |
| 1661 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
| 1662 int depth = 0; | |
| 1663 if (chunk != NULL) { | |
| 1664 // Iterate over chunks and count full ones | |
| 1665 while (true) { | |
| 1666 objArrayOop next = objArrayOop(chunk->obj_at(trace_next_offset)); | |
| 1667 if (next == NULL) break; | |
| 1668 depth += trace_chunk_size; | |
| 1669 chunk = next; | |
| 1670 } | |
| 1671 assert(chunk != NULL && chunk->obj_at(trace_next_offset) == NULL, "sanity check"); | |
| 1672 // Count element in remaining partial chunk | |
| 1673 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
| 1674 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
| 1675 assert(methods != NULL && bcis != NULL, "sanity check"); | |
| 1676 for (int i = 0; i < methods->length(); i++) { | |
| 1677 if (methods->obj_at(i) == NULL) break; | |
| 1678 depth++; | |
| 1679 } | |
| 1680 } | |
| 1681 return depth; | |
| 1682 } | |
| 1683 | |
| 1684 | |
| 1685 oop java_lang_Throwable::get_stack_trace_element(oop throwable, int index, TRAPS) { | |
| 1686 if (throwable == NULL) { | |
| 1687 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
| 1688 } | |
| 1689 if (index < 0) { | |
| 1690 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1691 } | |
| 1692 // Compute how many chunks to skip and index into actual chunk | |
| 1693 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
| 1694 int skip_chunks = index / trace_chunk_size; | |
| 1695 int chunk_index = index % trace_chunk_size; | |
| 1696 while (chunk != NULL && skip_chunks > 0) { | |
| 1697 chunk = objArrayOop(chunk->obj_at(trace_next_offset)); | |
| 1698 skip_chunks--; | |
| 1699 } | |
| 1700 if (chunk == NULL) { | |
| 1701 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1702 } | |
| 1703 // Get method,bci from chunk | |
| 1704 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
| 1705 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
| 1706 assert(methods != NULL && bcis != NULL, "sanity check"); | |
| 1707 methodHandle method(THREAD, methodOop(methods->obj_at(chunk_index))); | |
| 1708 int bci = bcis->ushort_at(chunk_index); | |
| 1709 // Chunk can be partial full | |
| 1710 if (method.is_null()) { | |
| 1711 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1712 } | |
| 1713 | |
| 1714 oop element = java_lang_StackTraceElement::create(method, bci, CHECK_0); | |
| 1715 return element; | |
| 1716 } | |
| 1717 | |
| 1718 oop java_lang_StackTraceElement::create(methodHandle method, int bci, TRAPS) { | |
| 1719 // SystemDictionary::stackTraceElement_klass() will be null for pre-1.4 JDKs | |
| 1720 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
| 1721 | |
| 1722 // Allocate java.lang.StackTraceElement instance | |
| 1142 | 1723 klassOop k = SystemDictionary::StackTraceElement_klass(); |
|
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|
1724 assert(k != NULL, "must be loaded in 1.4+"); |
| 0 | 1725 instanceKlassHandle ik (THREAD, k); |
| 1726 if (ik->should_be_initialized()) { | |
| 1727 ik->initialize(CHECK_0); | |
| 1728 } | |
| 1729 | |
| 1730 Handle element = ik->allocate_instance_handle(CHECK_0); | |
| 1731 // Fill in class name | |
| 1732 ResourceMark rm(THREAD); | |
| 1733 const char* str = instanceKlass::cast(method->method_holder())->external_name(); | |
| 1734 oop classname = StringTable::intern((char*) str, CHECK_0); | |
| 1735 java_lang_StackTraceElement::set_declaringClass(element(), classname); | |
| 1736 // Fill in method name | |
| 1737 oop methodname = StringTable::intern(method->name(), CHECK_0); | |
| 1738 java_lang_StackTraceElement::set_methodName(element(), methodname); | |
| 1739 // Fill in source file name | |
|
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|
1740 Symbol* source = instanceKlass::cast(method->method_holder())->source_file_name(); |
|
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|
1741 if (ShowHiddenFrames && source == NULL) |
|
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|
1742 source = vmSymbols::unknown_class_name(); |
| 0 | 1743 oop filename = StringTable::intern(source, CHECK_0); |
| 1744 java_lang_StackTraceElement::set_fileName(element(), filename); | |
| 1745 // File in source line number | |
| 1746 int line_number; | |
| 1747 if (method->is_native()) { | |
| 1748 // Negative value different from -1 below, enabling Java code in | |
| 1749 // class java.lang.StackTraceElement to distinguish "native" from | |
| 1750 // "no LineNumberTable". | |
| 1751 line_number = -2; | |
| 1752 } else { | |
| 1753 // Returns -1 if no LineNumberTable, and otherwise actual line number | |
| 1754 line_number = method->line_number_from_bci(bci); | |
|
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|
1755 if (line_number == -1 && ShowHiddenFrames) { |
|
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|
1756 line_number = bci + 1000000; |
|
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|
1757 } |
| 0 | 1758 } |
| 1759 java_lang_StackTraceElement::set_lineNumber(element(), line_number); | |
| 1760 | |
| 1761 return element(); | |
| 1762 } | |
| 1763 | |
| 1764 | |
| 1765 void java_lang_reflect_AccessibleObject::compute_offsets() { | |
| 1142 | 1766 klassOop k = SystemDictionary::reflect_AccessibleObject_klass(); |
|
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1767 compute_offset(override_offset, k, vmSymbols::override_name(), vmSymbols::bool_signature()); |
| 0 | 1768 } |
| 1769 | |
| 1770 jboolean java_lang_reflect_AccessibleObject::override(oop reflect) { | |
| 1771 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1772 return (jboolean) reflect->bool_field(override_offset); | |
| 1773 } | |
| 1774 | |
| 1775 void java_lang_reflect_AccessibleObject::set_override(oop reflect, jboolean value) { | |
| 1776 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1777 reflect->bool_field_put(override_offset, (int) value); | |
| 1778 } | |
| 1779 | |
| 1780 void java_lang_reflect_Method::compute_offsets() { | |
| 1142 | 1781 klassOop k = SystemDictionary::reflect_Method_klass(); |
|
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1782 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1783 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1784 compute_offset(returnType_offset, k, vmSymbols::returnType_name(), vmSymbols::class_signature()); |
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1785 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1786 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1787 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1788 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 1789 // The generic signature and annotations fields are only present in 1.5 |
| 1790 signature_offset = -1; | |
| 1791 annotations_offset = -1; | |
| 1792 parameter_annotations_offset = -1; | |
| 1793 annotation_default_offset = -1; | |
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1794 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1795 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1796 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
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1797 compute_optional_offset(annotation_default_offset, k, vmSymbols::annotation_default_name(), vmSymbols::byte_array_signature()); |
| 0 | 1798 } |
| 1799 | |
| 1800 Handle java_lang_reflect_Method::create(TRAPS) { | |
| 1801 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1142 | 1802 klassOop klass = SystemDictionary::reflect_Method_klass(); |
| 0 | 1803 // This class is eagerly initialized during VM initialization, since we keep a refence |
| 1804 // to one of the methods | |
| 1805 assert(instanceKlass::cast(klass)->is_initialized(), "must be initialized"); | |
| 1806 return instanceKlass::cast(klass)->allocate_instance_handle(CHECK_NH); | |
| 1807 } | |
| 1808 | |
| 1809 oop java_lang_reflect_Method::clazz(oop reflect) { | |
| 1810 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1811 return reflect->obj_field(clazz_offset); | |
| 1812 } | |
| 1813 | |
| 1814 void java_lang_reflect_Method::set_clazz(oop reflect, oop value) { | |
| 1815 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1816 reflect->obj_field_put(clazz_offset, value); | |
| 1817 } | |
| 1818 | |
| 1819 int java_lang_reflect_Method::slot(oop reflect) { | |
| 1820 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1821 return reflect->int_field(slot_offset); | |
| 1822 } | |
| 1823 | |
| 1824 void java_lang_reflect_Method::set_slot(oop reflect, int value) { | |
| 1825 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1826 reflect->int_field_put(slot_offset, value); | |
| 1827 } | |
| 1828 | |
| 1829 oop java_lang_reflect_Method::name(oop method) { | |
| 1830 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1831 return method->obj_field(name_offset); | |
| 1832 } | |
| 1833 | |
| 1834 void java_lang_reflect_Method::set_name(oop method, oop value) { | |
| 1835 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1836 method->obj_field_put(name_offset, value); | |
| 1837 } | |
| 1838 | |
| 1839 oop java_lang_reflect_Method::return_type(oop method) { | |
| 1840 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1841 return method->obj_field(returnType_offset); | |
| 1842 } | |
| 1843 | |
| 1844 void java_lang_reflect_Method::set_return_type(oop method, oop value) { | |
| 1845 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1846 method->obj_field_put(returnType_offset, value); | |
| 1847 } | |
| 1848 | |
| 1849 oop java_lang_reflect_Method::parameter_types(oop method) { | |
| 1850 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1851 return method->obj_field(parameterTypes_offset); | |
| 1852 } | |
| 1853 | |
| 1854 void java_lang_reflect_Method::set_parameter_types(oop method, oop value) { | |
| 1855 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1856 method->obj_field_put(parameterTypes_offset, value); | |
| 1857 } | |
| 1858 | |
| 1859 oop java_lang_reflect_Method::exception_types(oop method) { | |
| 1860 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1861 return method->obj_field(exceptionTypes_offset); | |
| 1862 } | |
| 1863 | |
| 1864 void java_lang_reflect_Method::set_exception_types(oop method, oop value) { | |
| 1865 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1866 method->obj_field_put(exceptionTypes_offset, value); | |
| 1867 } | |
| 1868 | |
| 1869 int java_lang_reflect_Method::modifiers(oop method) { | |
| 1870 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1871 return method->int_field(modifiers_offset); | |
| 1872 } | |
| 1873 | |
| 1874 void java_lang_reflect_Method::set_modifiers(oop method, int value) { | |
| 1875 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1876 method->int_field_put(modifiers_offset, value); | |
| 1877 } | |
| 1878 | |
| 1879 bool java_lang_reflect_Method::has_signature_field() { | |
| 1880 return (signature_offset >= 0); | |
| 1881 } | |
| 1882 | |
| 1883 oop java_lang_reflect_Method::signature(oop method) { | |
| 1884 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1885 assert(has_signature_field(), "signature field must be present"); | |
| 1886 return method->obj_field(signature_offset); | |
| 1887 } | |
| 1888 | |
| 1889 void java_lang_reflect_Method::set_signature(oop method, oop value) { | |
| 1890 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1891 assert(has_signature_field(), "signature field must be present"); | |
| 1892 method->obj_field_put(signature_offset, value); | |
| 1893 } | |
| 1894 | |
| 1895 bool java_lang_reflect_Method::has_annotations_field() { | |
| 1896 return (annotations_offset >= 0); | |
| 1897 } | |
| 1898 | |
| 1899 oop java_lang_reflect_Method::annotations(oop method) { | |
| 1900 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1901 assert(has_annotations_field(), "annotations field must be present"); | |
| 1902 return method->obj_field(annotations_offset); | |
| 1903 } | |
| 1904 | |
| 1905 void java_lang_reflect_Method::set_annotations(oop method, oop value) { | |
| 1906 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1907 assert(has_annotations_field(), "annotations field must be present"); | |
| 1908 method->obj_field_put(annotations_offset, value); | |
| 1909 } | |
| 1910 | |
| 1911 bool java_lang_reflect_Method::has_parameter_annotations_field() { | |
| 1912 return (parameter_annotations_offset >= 0); | |
| 1913 } | |
| 1914 | |
| 1915 oop java_lang_reflect_Method::parameter_annotations(oop method) { | |
| 1916 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1917 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1918 return method->obj_field(parameter_annotations_offset); | |
| 1919 } | |
| 1920 | |
| 1921 void java_lang_reflect_Method::set_parameter_annotations(oop method, oop value) { | |
| 1922 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1923 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1924 method->obj_field_put(parameter_annotations_offset, value); | |
| 1925 } | |
| 1926 | |
| 1927 bool java_lang_reflect_Method::has_annotation_default_field() { | |
| 1928 return (annotation_default_offset >= 0); | |
| 1929 } | |
| 1930 | |
| 1931 oop java_lang_reflect_Method::annotation_default(oop method) { | |
| 1932 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1933 assert(has_annotation_default_field(), "annotation default field must be present"); | |
| 1934 return method->obj_field(annotation_default_offset); | |
| 1935 } | |
| 1936 | |
| 1937 void java_lang_reflect_Method::set_annotation_default(oop method, oop value) { | |
| 1938 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1939 assert(has_annotation_default_field(), "annotation default field must be present"); | |
| 1940 method->obj_field_put(annotation_default_offset, value); | |
| 1941 } | |
| 1942 | |
| 1943 void java_lang_reflect_Constructor::compute_offsets() { | |
| 1142 | 1944 klassOop k = SystemDictionary::reflect_Constructor_klass(); |
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1945 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1946 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1947 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1948 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1949 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 1950 // The generic signature and annotations fields are only present in 1.5 |
| 1951 signature_offset = -1; | |
| 1952 annotations_offset = -1; | |
| 1953 parameter_annotations_offset = -1; | |
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1954 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1955 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1956 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
| 0 | 1957 } |
| 1958 | |
| 1959 Handle java_lang_reflect_Constructor::create(TRAPS) { | |
| 1960 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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1961 Symbol* name = vmSymbols::java_lang_reflect_Constructor(); |
| 0 | 1962 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
| 1963 instanceKlassHandle klass (THREAD, k); | |
| 1964 // Ensure it is initialized | |
| 1965 klass->initialize(CHECK_NH); | |
| 1966 return klass->allocate_instance_handle(CHECK_NH); | |
| 1967 } | |
| 1968 | |
| 1969 oop java_lang_reflect_Constructor::clazz(oop reflect) { | |
| 1970 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1971 return reflect->obj_field(clazz_offset); | |
| 1972 } | |
| 1973 | |
| 1974 void java_lang_reflect_Constructor::set_clazz(oop reflect, oop value) { | |
| 1975 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1976 reflect->obj_field_put(clazz_offset, value); | |
| 1977 } | |
| 1978 | |
| 1979 oop java_lang_reflect_Constructor::parameter_types(oop constructor) { | |
| 1980 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1981 return constructor->obj_field(parameterTypes_offset); | |
| 1982 } | |
| 1983 | |
| 1984 void java_lang_reflect_Constructor::set_parameter_types(oop constructor, oop value) { | |
| 1985 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1986 constructor->obj_field_put(parameterTypes_offset, value); | |
| 1987 } | |
| 1988 | |
| 1989 oop java_lang_reflect_Constructor::exception_types(oop constructor) { | |
| 1990 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1991 return constructor->obj_field(exceptionTypes_offset); | |
| 1992 } | |
| 1993 | |
| 1994 void java_lang_reflect_Constructor::set_exception_types(oop constructor, oop value) { | |
| 1995 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1996 constructor->obj_field_put(exceptionTypes_offset, value); | |
| 1997 } | |
| 1998 | |
| 1999 int java_lang_reflect_Constructor::slot(oop reflect) { | |
| 2000 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2001 return reflect->int_field(slot_offset); | |
| 2002 } | |
| 2003 | |
| 2004 void java_lang_reflect_Constructor::set_slot(oop reflect, int value) { | |
| 2005 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2006 reflect->int_field_put(slot_offset, value); | |
| 2007 } | |
| 2008 | |
| 2009 int java_lang_reflect_Constructor::modifiers(oop constructor) { | |
| 2010 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2011 return constructor->int_field(modifiers_offset); | |
| 2012 } | |
| 2013 | |
| 2014 void java_lang_reflect_Constructor::set_modifiers(oop constructor, int value) { | |
| 2015 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2016 constructor->int_field_put(modifiers_offset, value); | |
| 2017 } | |
| 2018 | |
| 2019 bool java_lang_reflect_Constructor::has_signature_field() { | |
| 2020 return (signature_offset >= 0); | |
| 2021 } | |
| 2022 | |
| 2023 oop java_lang_reflect_Constructor::signature(oop constructor) { | |
| 2024 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2025 assert(has_signature_field(), "signature field must be present"); | |
| 2026 return constructor->obj_field(signature_offset); | |
| 2027 } | |
| 2028 | |
| 2029 void java_lang_reflect_Constructor::set_signature(oop constructor, oop value) { | |
| 2030 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2031 assert(has_signature_field(), "signature field must be present"); | |
| 2032 constructor->obj_field_put(signature_offset, value); | |
| 2033 } | |
| 2034 | |
| 2035 bool java_lang_reflect_Constructor::has_annotations_field() { | |
| 2036 return (annotations_offset >= 0); | |
| 2037 } | |
| 2038 | |
| 2039 oop java_lang_reflect_Constructor::annotations(oop constructor) { | |
| 2040 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2041 assert(has_annotations_field(), "annotations field must be present"); | |
| 2042 return constructor->obj_field(annotations_offset); | |
| 2043 } | |
| 2044 | |
| 2045 void java_lang_reflect_Constructor::set_annotations(oop constructor, oop value) { | |
| 2046 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2047 assert(has_annotations_field(), "annotations field must be present"); | |
| 2048 constructor->obj_field_put(annotations_offset, value); | |
| 2049 } | |
| 2050 | |
| 2051 bool java_lang_reflect_Constructor::has_parameter_annotations_field() { | |
| 2052 return (parameter_annotations_offset >= 0); | |
| 2053 } | |
| 2054 | |
| 2055 oop java_lang_reflect_Constructor::parameter_annotations(oop method) { | |
| 2056 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2057 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 2058 return method->obj_field(parameter_annotations_offset); | |
| 2059 } | |
| 2060 | |
| 2061 void java_lang_reflect_Constructor::set_parameter_annotations(oop method, oop value) { | |
| 2062 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2063 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 2064 method->obj_field_put(parameter_annotations_offset, value); | |
| 2065 } | |
| 2066 | |
| 2067 void java_lang_reflect_Field::compute_offsets() { | |
| 1142 | 2068 klassOop k = SystemDictionary::reflect_Field_klass(); |
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2069 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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2070 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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2071 compute_offset(type_offset, k, vmSymbols::type_name(), vmSymbols::class_signature()); |
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2072 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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2073 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 2074 // The generic signature and annotations fields are only present in 1.5 |
| 2075 signature_offset = -1; | |
| 2076 annotations_offset = -1; | |
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2077 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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2078 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
| 0 | 2079 } |
| 2080 | |
| 2081 Handle java_lang_reflect_Field::create(TRAPS) { | |
| 2082 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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2083 Symbol* name = vmSymbols::java_lang_reflect_Field(); |
| 0 | 2084 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
| 2085 instanceKlassHandle klass (THREAD, k); | |
| 2086 // Ensure it is initialized | |
| 2087 klass->initialize(CHECK_NH); | |
| 2088 return klass->allocate_instance_handle(CHECK_NH); | |
| 2089 } | |
| 2090 | |
| 2091 oop java_lang_reflect_Field::clazz(oop reflect) { | |
| 2092 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2093 return reflect->obj_field(clazz_offset); | |
| 2094 } | |
| 2095 | |
| 2096 void java_lang_reflect_Field::set_clazz(oop reflect, oop value) { | |
| 2097 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2098 reflect->obj_field_put(clazz_offset, value); | |
| 2099 } | |
| 2100 | |
| 2101 oop java_lang_reflect_Field::name(oop field) { | |
| 2102 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2103 return field->obj_field(name_offset); | |
| 2104 } | |
| 2105 | |
| 2106 void java_lang_reflect_Field::set_name(oop field, oop value) { | |
| 2107 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2108 field->obj_field_put(name_offset, value); | |
| 2109 } | |
| 2110 | |
| 2111 oop java_lang_reflect_Field::type(oop field) { | |
| 2112 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2113 return field->obj_field(type_offset); | |
| 2114 } | |
| 2115 | |
| 2116 void java_lang_reflect_Field::set_type(oop field, oop value) { | |
| 2117 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2118 field->obj_field_put(type_offset, value); | |
| 2119 } | |
| 2120 | |
| 2121 int java_lang_reflect_Field::slot(oop reflect) { | |
| 2122 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2123 return reflect->int_field(slot_offset); | |
| 2124 } | |
| 2125 | |
| 2126 void java_lang_reflect_Field::set_slot(oop reflect, int value) { | |
| 2127 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2128 reflect->int_field_put(slot_offset, value); | |
| 2129 } | |
| 2130 | |
| 2131 int java_lang_reflect_Field::modifiers(oop field) { | |
| 2132 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2133 return field->int_field(modifiers_offset); | |
| 2134 } | |
| 2135 | |
| 2136 void java_lang_reflect_Field::set_modifiers(oop field, int value) { | |
| 2137 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2138 field->int_field_put(modifiers_offset, value); | |
| 2139 } | |
| 2140 | |
| 2141 bool java_lang_reflect_Field::has_signature_field() { | |
| 2142 return (signature_offset >= 0); | |
| 2143 } | |
| 2144 | |
| 2145 oop java_lang_reflect_Field::signature(oop field) { | |
| 2146 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2147 assert(has_signature_field(), "signature field must be present"); | |
| 2148 return field->obj_field(signature_offset); | |
| 2149 } | |
| 2150 | |
| 2151 void java_lang_reflect_Field::set_signature(oop field, oop value) { | |
| 2152 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2153 assert(has_signature_field(), "signature field must be present"); | |
| 2154 field->obj_field_put(signature_offset, value); | |
| 2155 } | |
| 2156 | |
| 2157 bool java_lang_reflect_Field::has_annotations_field() { | |
| 2158 return (annotations_offset >= 0); | |
| 2159 } | |
| 2160 | |
| 2161 oop java_lang_reflect_Field::annotations(oop field) { | |
| 2162 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2163 assert(has_annotations_field(), "annotations field must be present"); | |
| 2164 return field->obj_field(annotations_offset); | |
| 2165 } | |
| 2166 | |
| 2167 void java_lang_reflect_Field::set_annotations(oop field, oop value) { | |
| 2168 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2169 assert(has_annotations_field(), "annotations field must be present"); | |
| 2170 field->obj_field_put(annotations_offset, value); | |
| 2171 } | |
| 2172 | |
| 2173 | |
| 2174 void sun_reflect_ConstantPool::compute_offsets() { | |
| 1142 | 2175 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
| 0 | 2176 // This null test can be removed post beta |
| 2177 if (k != NULL) { | |
|
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2178 compute_offset(_cp_oop_offset, k, vmSymbols::constantPoolOop_name(), vmSymbols::object_signature()); |
| 0 | 2179 } |
| 2180 } | |
| 2181 | |
| 2182 | |
| 2183 Handle sun_reflect_ConstantPool::create(TRAPS) { | |
| 2184 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1142 | 2185 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
| 0 | 2186 instanceKlassHandle klass (THREAD, k); |
| 2187 // Ensure it is initialized | |
| 2188 klass->initialize(CHECK_NH); | |
| 2189 return klass->allocate_instance_handle(CHECK_NH); | |
| 2190 } | |
| 2191 | |
| 2192 | |
| 2193 oop sun_reflect_ConstantPool::cp_oop(oop reflect) { | |
| 2194 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2195 return reflect->obj_field(_cp_oop_offset); | |
| 2196 } | |
| 2197 | |
| 2198 | |
| 2199 void sun_reflect_ConstantPool::set_cp_oop(oop reflect, oop value) { | |
| 2200 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2201 reflect->obj_field_put(_cp_oop_offset, value); | |
| 2202 } | |
| 2203 | |
| 2204 void sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets() { | |
| 1142 | 2205 klassOop k = SystemDictionary::reflect_UnsafeStaticFieldAccessorImpl_klass(); |
| 0 | 2206 // This null test can be removed post beta |
| 2207 if (k != NULL) { | |
|
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2208 compute_offset(_base_offset, k, |
| 0 | 2209 vmSymbols::base_name(), vmSymbols::object_signature()); |
| 2210 } | |
| 2211 } | |
| 2212 | |
|
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2213 oop java_lang_boxing_object::initialize_and_allocate(BasicType type, TRAPS) { |
|
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2214 klassOop k = SystemDictionary::box_klass(type); |
|
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2215 if (k == NULL) return NULL; |
|
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|
2216 instanceKlassHandle h (THREAD, k); |
|
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2217 if (!h->is_initialized()) h->initialize(CHECK_0); |
|
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2218 return h->allocate_instance(THREAD); |
| 0 | 2219 } |
| 2220 | |
| 2221 | |
| 2222 oop java_lang_boxing_object::create(BasicType type, jvalue* value, TRAPS) { | |
|
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2223 oop box = initialize_and_allocate(type, CHECK_0); |
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2224 if (box == NULL) return NULL; |
| 0 | 2225 switch (type) { |
| 2226 case T_BOOLEAN: | |
| 2227 box->bool_field_put(value_offset, value->z); | |
| 2228 break; | |
| 2229 case T_CHAR: | |
| 2230 box->char_field_put(value_offset, value->c); | |
| 2231 break; | |
| 2232 case T_FLOAT: | |
| 2233 box->float_field_put(value_offset, value->f); | |
| 2234 break; | |
| 2235 case T_DOUBLE: | |
|
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2236 box->double_field_put(long_value_offset, value->d); |
| 0 | 2237 break; |
| 2238 case T_BYTE: | |
| 2239 box->byte_field_put(value_offset, value->b); | |
| 2240 break; | |
| 2241 case T_SHORT: | |
| 2242 box->short_field_put(value_offset, value->s); | |
| 2243 break; | |
| 2244 case T_INT: | |
| 2245 box->int_field_put(value_offset, value->i); | |
| 2246 break; | |
| 2247 case T_LONG: | |
|
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2248 box->long_field_put(long_value_offset, value->j); |
| 0 | 2249 break; |
| 2250 default: | |
| 2251 return NULL; | |
| 2252 } | |
| 2253 return box; | |
| 2254 } | |
| 2255 | |
| 2256 | |
|
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2257 BasicType java_lang_boxing_object::basic_type(oop box) { |
|
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2258 if (box == NULL) return T_ILLEGAL; |
|
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2259 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
|
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2260 if (type == T_OBJECT) // 'unknown' value returned by SD::bkt |
|
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|
2261 return T_ILLEGAL; |
|
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|
2262 return type; |
|
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|
2263 } |
|
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|
2264 |
|
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2265 |
| 0 | 2266 BasicType java_lang_boxing_object::get_value(oop box, jvalue* value) { |
|
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2267 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
|
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2268 switch (type) { |
|
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2269 case T_BOOLEAN: |
| 0 | 2270 value->z = box->bool_field(value_offset); |
|
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2271 break; |
|
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2272 case T_CHAR: |
| 0 | 2273 value->c = box->char_field(value_offset); |
|
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2274 break; |
|
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2275 case T_FLOAT: |
| 0 | 2276 value->f = box->float_field(value_offset); |
|
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|
2277 break; |
|
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|
2278 case T_DOUBLE: |
|
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2279 value->d = box->double_field(long_value_offset); |
|
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2280 break; |
|
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2281 case T_BYTE: |
| 0 | 2282 value->b = box->byte_field(value_offset); |
|
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2283 break; |
|
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|
2284 case T_SHORT: |
| 0 | 2285 value->s = box->short_field(value_offset); |
|
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|
2286 break; |
|
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|
2287 case T_INT: |
| 0 | 2288 value->i = box->int_field(value_offset); |
|
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2289 break; |
|
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|
2290 case T_LONG: |
|
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2291 value->j = box->long_field(long_value_offset); |
|
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|
2292 break; |
|
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|
2293 default: |
|
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|
2294 return T_ILLEGAL; |
|
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|
2295 } // end switch |
|
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|
2296 return type; |
| 0 | 2297 } |
| 2298 | |
| 2299 | |
| 2300 BasicType java_lang_boxing_object::set_value(oop box, jvalue* value) { | |
|
132
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2301 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
|
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|
2302 switch (type) { |
|
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|
2303 case T_BOOLEAN: |
| 0 | 2304 box->bool_field_put(value_offset, value->z); |
|
132
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|
2305 break; |
|
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|
2306 case T_CHAR: |
| 0 | 2307 box->char_field_put(value_offset, value->c); |
|
132
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|
2308 break; |
|
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|
2309 case T_FLOAT: |
| 0 | 2310 box->float_field_put(value_offset, value->f); |
|
132
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|
2311 break; |
|
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|
2312 case T_DOUBLE: |
|
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2313 box->double_field_put(long_value_offset, value->d); |
|
132
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|
2314 break; |
|
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|
2315 case T_BYTE: |
| 0 | 2316 box->byte_field_put(value_offset, value->b); |
|
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2317 break; |
|
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2318 case T_SHORT: |
| 0 | 2319 box->short_field_put(value_offset, value->s); |
|
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|
2320 break; |
|
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|
2321 case T_INT: |
| 0 | 2322 box->int_field_put(value_offset, value->i); |
|
132
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2323 break; |
|
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|
2324 case T_LONG: |
|
165
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2325 box->long_field_put(long_value_offset, value->j); |
|
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|
2326 break; |
|
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|
2327 default: |
|
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|
2328 return T_ILLEGAL; |
|
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|
2329 } // end switch |
|
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|
2330 return type; |
| 0 | 2331 } |
| 2332 | |
| 2333 | |
|
665
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|
2334 void java_lang_boxing_object::print(BasicType type, jvalue* value, outputStream* st) { |
|
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|
2335 switch (type) { |
|
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|
2336 case T_BOOLEAN: st->print("%s", value->z ? "true" : "false"); break; |
|
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|
2337 case T_CHAR: st->print("%d", value->c); break; |
|
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|
2338 case T_BYTE: st->print("%d", value->b); break; |
|
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|
2339 case T_SHORT: st->print("%d", value->s); break; |
|
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|
2340 case T_INT: st->print("%d", value->i); break; |
|
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|
2341 case T_LONG: st->print(INT64_FORMAT, value->j); break; |
|
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|
2342 case T_FLOAT: st->print("%f", value->f); break; |
|
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|
2343 case T_DOUBLE: st->print("%lf", value->d); break; |
|
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|
2344 default: st->print("type %d?", type); break; |
|
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|
2345 } |
|
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|
2346 } |
|
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|
2347 |
|
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|
2348 |
| 0 | 2349 // Support for java_lang_ref_Reference |
|
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|
2350 oop java_lang_ref_Reference::pending_list_lock() { |
| 1142 | 2351 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
|
2376
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|
2352 address addr = ik->static_field_addr(static_lock_offset); |
|
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|
2353 if (UseCompressedOops) { |
|
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|
2354 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
|
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2355 } else { |
|
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|
2356 return oopDesc::load_decode_heap_oop((oop*)addr); |
|
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|
2357 } |
| 0 | 2358 } |
| 2359 | |
|
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|
2360 HeapWord *java_lang_ref_Reference::pending_list_addr() { |
| 1142 | 2361 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
|
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|
2362 address addr = ik->static_field_addr(static_pending_offset); |
|
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|
2363 // XXX This might not be HeapWord aligned, almost rather be char *. |
|
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|
2364 return (HeapWord*)addr; |
| 0 | 2365 } |
| 2366 | |
|
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|
2367 oop java_lang_ref_Reference::pending_list() { |
|
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|
2368 char *addr = (char *)pending_list_addr(); |
|
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|
2369 if (UseCompressedOops) { |
|
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|
2370 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
|
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|
2371 } else { |
|
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|
2372 return oopDesc::load_decode_heap_oop((oop*)addr); |
|
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|
2373 } |
| 0 | 2374 } |
| 2375 | |
| 2376 | |
| 2377 // Support for java_lang_ref_SoftReference | |
| 2378 | |
| 2379 jlong java_lang_ref_SoftReference::timestamp(oop ref) { | |
| 2380 return ref->long_field(timestamp_offset); | |
| 2381 } | |
| 2382 | |
| 2383 jlong java_lang_ref_SoftReference::clock() { | |
| 1142 | 2384 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
|
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|
2385 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
|
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|
2386 return *offset; |
| 0 | 2387 } |
| 2388 | |
| 2389 void java_lang_ref_SoftReference::set_clock(jlong value) { | |
| 1142 | 2390 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
|
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|
2391 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
|
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|
2392 *offset = value; |
| 0 | 2393 } |
| 2394 | |
| 2395 | |
|
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|
2396 // Support for java_lang_invoke_MethodHandle |
|
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|
2397 |
|
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|
2398 int java_lang_invoke_MethodHandle::_type_offset; |
|
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2399 int java_lang_invoke_MethodHandle::_form_offset; |
|
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|
2400 |
|
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|
2401 int java_lang_invoke_MemberName::_clazz_offset; |
|
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|
2402 int java_lang_invoke_MemberName::_name_offset; |
|
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|
2403 int java_lang_invoke_MemberName::_type_offset; |
|
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|
2404 int java_lang_invoke_MemberName::_flags_offset; |
|
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|
2405 int java_lang_invoke_MemberName::_vmtarget_offset; |
|
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|
2406 int java_lang_invoke_MemberName::_vmindex_offset; |
|
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|
2407 |
|
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|
2408 int java_lang_invoke_LambdaForm::_vmentry_offset; |
|
3905
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
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|
2409 |
|
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|
2410 void java_lang_invoke_MethodHandle::compute_offsets() { |
| 3938 | 2411 klassOop klass_oop = SystemDictionary::MethodHandle_klass(); |
| 2412 if (klass_oop != NULL && EnableInvokeDynamic) { | |
|
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|
2413 compute_offset(_type_offset, klass_oop, vmSymbols::type_name(), vmSymbols::java_lang_invoke_MethodType_signature()); |
|
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|
2414 compute_optional_offset(_form_offset, klass_oop, vmSymbols::form_name(), vmSymbols::java_lang_invoke_LambdaForm_signature()); |
|
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|
2415 if (_form_offset == 0) { |
|
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|
2416 EnableInvokeDynamic = false; |
|
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|
2417 } |
| 710 | 2418 } |
| 2419 } | |
| 2420 | |
|
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|
2421 void java_lang_invoke_MemberName::compute_offsets() { |
| 3938 | 2422 klassOop klass_oop = SystemDictionary::MemberName_klass(); |
| 2423 if (klass_oop != NULL && EnableInvokeDynamic) { | |
| 2424 compute_offset(_clazz_offset, klass_oop, vmSymbols::clazz_name(), vmSymbols::class_signature()); | |
| 2425 compute_offset(_name_offset, klass_oop, vmSymbols::name_name(), vmSymbols::string_signature()); | |
| 2426 compute_offset(_type_offset, klass_oop, vmSymbols::type_name(), vmSymbols::object_signature()); | |
| 2427 compute_offset(_flags_offset, klass_oop, vmSymbols::flags_name(), vmSymbols::int_signature()); | |
| 2428 MEMBERNAME_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
| 710 | 2429 } |
| 2430 } | |
| 2431 | |
|
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|
2432 void java_lang_invoke_LambdaForm::compute_offsets() { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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|
2433 klassOop klass_oop = SystemDictionary::LambdaForm_klass(); |
|
1d7922586cf6
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|
2434 if (klass_oop != NULL && EnableInvokeDynamic) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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|
2435 compute_offset(_vmentry_offset, klass_oop, vmSymbols::vmentry_name(), vmSymbols::java_lang_invoke_MemberName_signature()); |
| 710 | 2436 } |
| 2437 } | |
| 2438 | |
|
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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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|
2439 oop java_lang_invoke_MethodHandle::type(oop mh) { |
| 710 | 2440 return mh->obj_field(_type_offset); |
| 2441 } | |
| 2442 | |
|
2357
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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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|
2443 void java_lang_invoke_MethodHandle::set_type(oop mh, oop mtype) { |
| 710 | 2444 mh->obj_field_put(_type_offset, mtype); |
| 2445 } | |
| 2446 | |
|
6266
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|
2447 oop java_lang_invoke_MethodHandle::form(oop mh) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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6224
diff
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|
2448 assert(_form_offset != 0, ""); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff
changeset
|
2449 return mh->obj_field(_form_offset); |
| 710 | 2450 } |
| 2451 | |
|
6266
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|
2452 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
|
2453 assert(_form_offset != 0, ""); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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6224
diff
changeset
|
2454 mh->obj_field_put(_form_offset, lform); |
| 710 | 2455 } |
| 2456 | |
| 2457 /// MemberName accessors | |
| 2458 | |
|
2357
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diff
changeset
|
2459 oop java_lang_invoke_MemberName::clazz(oop mname) { |
| 710 | 2460 assert(is_instance(mname), "wrong type"); |
| 2461 return mname->obj_field(_clazz_offset); | |
| 2462 } | |
| 2463 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2464 void java_lang_invoke_MemberName::set_clazz(oop mname, oop clazz) { |
| 710 | 2465 assert(is_instance(mname), "wrong type"); |
| 2466 mname->obj_field_put(_clazz_offset, clazz); | |
| 2467 } | |
| 2468 | |
|
2357
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
changeset
|
2469 oop java_lang_invoke_MemberName::name(oop mname) { |
| 710 | 2470 assert(is_instance(mname), "wrong type"); |
| 2471 return mname->obj_field(_name_offset); | |
| 2472 } | |
| 2473 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2474 void java_lang_invoke_MemberName::set_name(oop mname, oop name) { |
| 710 | 2475 assert(is_instance(mname), "wrong type"); |
| 2476 mname->obj_field_put(_name_offset, name); | |
| 2477 } | |
| 2478 | |
|
2357
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
changeset
|
2479 oop java_lang_invoke_MemberName::type(oop mname) { |
| 710 | 2480 assert(is_instance(mname), "wrong type"); |
| 2481 return mname->obj_field(_type_offset); | |
| 2482 } | |
| 2483 | |
|
2357
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
changeset
|
2484 void java_lang_invoke_MemberName::set_type(oop mname, oop type) { |
| 710 | 2485 assert(is_instance(mname), "wrong type"); |
| 2486 mname->obj_field_put(_type_offset, type); | |
| 2487 } | |
| 2488 | |
|
2357
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2356
diff
changeset
|
2489 int java_lang_invoke_MemberName::flags(oop mname) { |
| 710 | 2490 assert(is_instance(mname), "wrong type"); |
| 2491 return mname->int_field(_flags_offset); | |
| 2492 } | |
| 2493 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2494 void java_lang_invoke_MemberName::set_flags(oop mname, int flags) { |
| 710 | 2495 assert(is_instance(mname), "wrong type"); |
| 2496 mname->int_field_put(_flags_offset, flags); | |
| 2497 } | |
| 2498 | |
|
2357
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
changeset
|
2499 oop java_lang_invoke_MemberName::vmtarget(oop mname) { |
| 710 | 2500 assert(is_instance(mname), "wrong type"); |
| 2501 return mname->obj_field(_vmtarget_offset); | |
| 2502 } | |
| 2503 | |
|
2357
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
changeset
|
2504 void java_lang_invoke_MemberName::set_vmtarget(oop mname, oop ref) { |
| 710 | 2505 assert(is_instance(mname), "wrong type"); |
|
6266
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diff
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|
2506 #ifdef ASSERT |
|
1d7922586cf6
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diff
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|
2507 // check the type of the vmtarget |
|
1d7922586cf6
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diff
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|
2508 if (ref != NULL) { |
|
1d7922586cf6
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|
2509 switch (flags(mname) & (MN_IS_METHOD | |
|
1d7922586cf6
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diff
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|
2510 MN_IS_CONSTRUCTOR | |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff
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|
2511 MN_IS_FIELD)) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff
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|
2512 case MN_IS_METHOD: |
|
1d7922586cf6
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diff
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|
2513 case MN_IS_CONSTRUCTOR: |
|
1d7922586cf6
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diff
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|
2514 assert(ref->is_method(), "should be a method"); |
|
1d7922586cf6
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diff
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|
2515 break; |
|
1d7922586cf6
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diff
changeset
|
2516 case MN_IS_FIELD: |
|
1d7922586cf6
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diff
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|
2517 assert(ref->is_klass(), "should be a class"); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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6224
diff
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|
2518 break; |
|
1d7922586cf6
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6224
diff
changeset
|
2519 default: |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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6224
diff
changeset
|
2520 ShouldNotReachHere(); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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6224
diff
changeset
|
2521 } |
|
1d7922586cf6
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diff
changeset
|
2522 } |
|
1d7922586cf6
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diff
changeset
|
2523 #endif //ASSERT |
| 710 | 2524 mname->obj_field_put(_vmtarget_offset, ref); |
| 2525 } | |
| 2526 | |
|
6266
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|
2527 intptr_t java_lang_invoke_MemberName::vmindex(oop mname) { |
| 710 | 2528 assert(is_instance(mname), "wrong type"); |
|
6266
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|
2529 return (intptr_t) mname->address_field(_vmindex_offset); |
| 710 | 2530 } |
| 2531 | |
|
6266
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diff
changeset
|
2532 void java_lang_invoke_MemberName::set_vmindex(oop mname, intptr_t index) { |
|
1d7922586cf6
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changeset
|
2533 assert(is_instance(mname), "wrong type"); |
|
1d7922586cf6
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changeset
|
2534 mname->address_field_put(_vmindex_offset, (address) index); |
| 710 | 2535 } |
| 2536 | |
|
6266
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|
2537 oop java_lang_invoke_LambdaForm::vmentry(oop lform) { |
|
1d7922586cf6
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6224
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changeset
|
2538 assert(is_instance(lform), "wrong type"); |
|
1d7922586cf6
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diff
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|
2539 return lform->obj_field(_vmentry_offset); |
| 710 | 2540 } |
| 2541 | |
| 2542 | |
|
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changeset
|
2543 // Support for java_lang_invoke_MethodType |
|
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|
2544 |
|
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diff
changeset
|
2545 int java_lang_invoke_MethodType::_rtype_offset; |
|
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diff
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|
2546 int java_lang_invoke_MethodType::_ptypes_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
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|
2547 |
|
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changeset
|
2548 void java_lang_invoke_MethodType::compute_offsets() { |
| 710 | 2549 klassOop k = SystemDictionary::MethodType_klass(); |
| 2550 if (k != NULL) { | |
| 2551 compute_offset(_rtype_offset, k, vmSymbols::rtype_name(), vmSymbols::class_signature()); | |
| 2552 compute_offset(_ptypes_offset, k, vmSymbols::ptypes_name(), vmSymbols::class_array_signature()); | |
| 2553 } | |
| 2554 } | |
| 2555 | |
|
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|
2556 void java_lang_invoke_MethodType::print_signature(oop mt, outputStream* st) { |
| 710 | 2557 st->print("("); |
| 2558 objArrayOop pts = ptypes(mt); | |
| 2559 for (int i = 0, limit = pts->length(); i < limit; i++) { | |
| 2560 java_lang_Class::print_signature(pts->obj_at(i), st); | |
| 2561 } | |
| 2562 st->print(")"); | |
| 2563 java_lang_Class::print_signature(rtype(mt), st); | |
| 2564 } | |
| 2565 | |
|
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|
2566 Symbol* java_lang_invoke_MethodType::as_signature(oop mt, bool intern_if_not_found, TRAPS) { |
| 710 | 2567 ResourceMark rm; |
| 2568 stringStream buffer(128); | |
| 2569 print_signature(mt, &buffer); | |
| 2570 const char* sigstr = buffer.base(); | |
| 2571 int siglen = (int) buffer.size(); | |
|
2177
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coleenp
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1989
diff
changeset
|
2572 Symbol *name; |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
changeset
|
2573 if (!intern_if_not_found) { |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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diff
changeset
|
2574 name = SymbolTable::probe(sigstr, siglen); |
|
3582bf76420e
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diff
changeset
|
2575 } else { |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
changeset
|
2576 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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1989
diff
changeset
|
2577 } |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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1989
diff
changeset
|
2578 return name; |
| 710 | 2579 } |
| 2580 | |
|
3785
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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diff
changeset
|
2581 bool java_lang_invoke_MethodType::equals(oop mt1, oop mt2) { |
|
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|
2582 if (mt1 == mt2) |
|
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|
2583 return true; |
|
3785
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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3363
diff
changeset
|
2584 if (rtype(mt1) != rtype(mt2)) |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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diff
changeset
|
2585 return false; |
|
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7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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diff
changeset
|
2586 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:
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|
2587 return false; |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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diff
changeset
|
2588 for (int i = ptype_count(mt1) - 1; i >= 0; i--) { |
|
ddd894528dbc
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diff
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|
2589 if (ptype(mt1, i) != ptype(mt2, i)) |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
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diff
changeset
|
2590 return false; |
|
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7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2591 } |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2592 return true; |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2593 } |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2594 |
|
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diff
changeset
|
2595 oop java_lang_invoke_MethodType::rtype(oop mt) { |
| 710 | 2596 assert(is_instance(mt), "must be a MethodType"); |
| 2597 return mt->obj_field(_rtype_offset); | |
| 2598 } | |
| 2599 | |
|
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jrose
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2356
diff
changeset
|
2600 objArrayOop java_lang_invoke_MethodType::ptypes(oop mt) { |
| 710 | 2601 assert(is_instance(mt), "must be a MethodType"); |
| 2602 return (objArrayOop) mt->obj_field(_ptypes_offset); | |
| 2603 } | |
| 2604 | |
|
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jrose
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2356
diff
changeset
|
2605 oop java_lang_invoke_MethodType::ptype(oop mt, int idx) { |
| 710 | 2606 return ptypes(mt)->obj_at(idx); |
| 2607 } | |
| 2608 | |
|
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jrose
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2356
diff
changeset
|
2609 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
|
2610 return ptypes(mt)->length(); |
|
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
twisti
parents:
1096
diff
changeset
|
2611 } |
|
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
twisti
parents:
1096
diff
changeset
|
2612 |
|
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1d7922586cf6
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6224
diff
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|
2613 int java_lang_invoke_MethodType::ptype_slot_count(oop mt) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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6224
diff
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|
2614 objArrayOop pts = ptypes(mt); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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6224
diff
changeset
|
2615 int count = pts->length(); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2616 int slots = 0; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2617 for (int i = 0; i < count; i++) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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parents:
6224
diff
changeset
|
2618 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
|
2619 slots += type2size[bt]; |
| 710 | 2620 } |
|
6266
1d7922586cf6
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6224
diff
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|
2621 return slots; |
| 710 | 2622 } |
| 2623 | |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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6224
diff
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|
2624 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
|
2625 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
|
2626 return type2size[bt]; |
|
1793
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2627 } |
|
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2628 |
| 710 | 2629 |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2630 // Support for java_lang_invoke_CallSite |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2631 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2632 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
|
2633 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2634 void java_lang_invoke_CallSite::compute_offsets() { |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2635 if (!EnableInvokeDynamic) return; |
|
1059
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
949
diff
changeset
|
2636 klassOop k = SystemDictionary::CallSite_klass(); |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2637 if (k != NULL) { |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2638 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
|
2639 } |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2640 } |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2641 |
| 710 | 2642 |
| 0 | 2643 // Support for java_security_AccessControlContext |
| 2644 | |
| 2645 int java_security_AccessControlContext::_context_offset = 0; | |
| 2646 int java_security_AccessControlContext::_privilegedContext_offset = 0; | |
| 2647 int java_security_AccessControlContext::_isPrivileged_offset = 0; | |
| 2648 | |
| 2649 void java_security_AccessControlContext::compute_offsets() { | |
| 2650 assert(_isPrivileged_offset == 0, "offsets should be initialized only once"); | |
| 2651 fieldDescriptor fd; | |
| 2652 instanceKlass* ik = instanceKlass::cast(SystemDictionary::AccessControlContext_klass()); | |
| 2653 | |
| 2654 if (!ik->find_local_field(vmSymbols::context_name(), vmSymbols::protectiondomain_signature(), &fd)) { | |
| 2655 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2656 } | |
| 2657 _context_offset = fd.offset(); | |
| 2658 | |
| 2659 if (!ik->find_local_field(vmSymbols::privilegedContext_name(), vmSymbols::accesscontrolcontext_signature(), &fd)) { | |
| 2660 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2661 } | |
| 2662 _privilegedContext_offset = fd.offset(); | |
| 2663 | |
| 2664 if (!ik->find_local_field(vmSymbols::isPrivileged_name(), vmSymbols::bool_signature(), &fd)) { | |
| 2665 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2666 } | |
| 2667 _isPrivileged_offset = fd.offset(); | |
| 2668 } | |
| 2669 | |
| 2670 | |
| 2671 oop java_security_AccessControlContext::create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS) { | |
| 2672 assert(_isPrivileged_offset != 0, "offsets should have been initialized"); | |
| 2673 // Ensure klass is initialized | |
| 2674 instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->initialize(CHECK_0); | |
| 2675 // Allocate result | |
| 2676 oop result = instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->allocate_instance(CHECK_0); | |
| 2677 // Fill in values | |
| 2678 result->obj_field_put(_context_offset, context()); | |
| 2679 result->obj_field_put(_privilegedContext_offset, privileged_context()); | |
| 2680 result->bool_field_put(_isPrivileged_offset, isPrivileged); | |
| 2681 return result; | |
| 2682 } | |
| 2683 | |
| 2684 | |
| 2685 // Support for java_lang_ClassLoader | |
| 3938 | 2686 bool java_lang_ClassLoader::offsets_computed = false; |
| 2687 int java_lang_ClassLoader::parallelCapable_offset = -1; | |
| 2688 | |
| 2689 void java_lang_ClassLoader::compute_offsets() { | |
| 2690 assert(!offsets_computed, "offsets should be initialized only once"); | |
| 2691 offsets_computed = true; | |
| 2692 | |
| 2693 // The field indicating parallelCapable (parallelLockMap) is only present starting in 7, | |
| 2694 klassOop k1 = SystemDictionary::ClassLoader_klass(); | |
| 2695 compute_optional_offset(parallelCapable_offset, | |
| 2696 k1, vmSymbols::parallelCapable_name(), vmSymbols::concurrenthashmap_signature()); | |
| 2697 } | |
| 0 | 2698 |
| 2699 oop java_lang_ClassLoader::parent(oop loader) { | |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2700 assert(is_instance(loader), "loader must be oop"); |
| 0 | 2701 return loader->obj_field(parent_offset); |
| 2702 } | |
| 2703 | |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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parents:
6224
diff
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|
2704 bool java_lang_ClassLoader::isAncestor(oop loader, oop cl) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2705 assert(is_instance(loader), "loader must be oop"); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2706 assert(cl == NULL || is_instance(cl), "cl argument must be oop"); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2707 oop acl = loader; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2708 debug_only(jint loop_count = 0); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2709 // This loop taken verbatim from ClassLoader.java: |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2710 do { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2711 acl = parent(acl); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2712 if (cl == acl) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2713 return true; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2714 } |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2715 assert(++loop_count > 0, "loop_count overflow"); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2716 } while (acl != NULL); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2717 return false; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2718 } |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2719 |
| 0 | 2720 |
| 3938 | 2721 // For class loader classes, parallelCapable defined |
| 2722 // based on non-null field | |
| 2723 // Written to by java.lang.ClassLoader, vm only reads this field, doesn't set it | |
| 2724 bool java_lang_ClassLoader::parallelCapable(oop class_loader) { | |
| 2725 if (!JDK_Version::is_gte_jdk17x_version() | |
| 2726 || parallelCapable_offset == -1) { | |
| 2727 // Default for backward compatibility is false | |
| 2728 return false; | |
| 2729 } | |
| 2730 return (class_loader->obj_field(parallelCapable_offset) != NULL); | |
| 2731 } | |
| 2732 | |
| 0 | 2733 bool java_lang_ClassLoader::is_trusted_loader(oop loader) { |
| 2734 // Fix for 4474172; see evaluation for more details | |
| 2735 loader = non_reflection_class_loader(loader); | |
| 2736 | |
| 2737 oop cl = SystemDictionary::java_system_loader(); | |
| 2738 while(cl != NULL) { | |
| 2739 if (cl == loader) return true; | |
| 2740 cl = parent(cl); | |
| 2741 } | |
| 2742 return false; | |
| 2743 } | |
| 2744 | |
| 2745 oop java_lang_ClassLoader::non_reflection_class_loader(oop loader) { | |
| 2746 if (loader != NULL) { | |
| 2747 // See whether this is one of the class loaders associated with | |
| 2748 // the generated bytecodes for reflection, and if so, "magically" | |
| 2749 // delegate to its parent to prevent class loading from occurring | |
| 2750 // in places where applications using reflection didn't expect it. | |
| 1142 | 2751 klassOop delegating_cl_class = SystemDictionary::reflect_DelegatingClassLoader_klass(); |
| 0 | 2752 // This might be null in non-1.4 JDKs |
| 2753 if (delegating_cl_class != NULL && loader->is_a(delegating_cl_class)) { | |
| 2754 return parent(loader); | |
| 2755 } | |
| 2756 } | |
| 2757 return loader; | |
| 2758 } | |
| 2759 | |
| 2760 | |
| 2761 // Support for java_lang_System | |
| 2762 int java_lang_System::in_offset_in_bytes() { | |
|
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2763 return (instanceMirrorKlass::offset_of_static_fields() + static_in_offset); |
| 0 | 2764 } |
| 2765 | |
| 2766 | |
| 2767 int java_lang_System::out_offset_in_bytes() { | |
|
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2768 return (instanceMirrorKlass::offset_of_static_fields() + static_out_offset); |
| 0 | 2769 } |
| 2770 | |
| 2771 | |
| 2772 int java_lang_System::err_offset_in_bytes() { | |
|
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2773 return (instanceMirrorKlass::offset_of_static_fields() + static_err_offset); |
| 0 | 2774 } |
| 2775 | |
| 2776 | |
| 2777 | |
| 3938 | 2778 int java_lang_Class::_klass_offset; |
| 2779 int java_lang_Class::_array_klass_offset; | |
| 2780 int java_lang_Class::_resolved_constructor_offset; | |
| 2781 int java_lang_Class::_oop_size_offset; | |
| 2782 int java_lang_Class::_static_oop_field_count_offset; | |
| 0 | 2783 int java_lang_Throwable::backtrace_offset; |
| 2784 int java_lang_Throwable::detailMessage_offset; | |
| 2785 int java_lang_Throwable::cause_offset; | |
| 2786 int java_lang_Throwable::stackTrace_offset; | |
|
3820
0b80db433fcb
7046490: Preallocated OOME objects should obey Throwable stack trace protocol
dholmes
parents:
3795
diff
changeset
|
2787 int java_lang_Throwable::static_unassigned_stacktrace_offset; |
| 0 | 2788 int java_lang_reflect_AccessibleObject::override_offset; |
| 2789 int java_lang_reflect_Method::clazz_offset; | |
| 2790 int java_lang_reflect_Method::name_offset; | |
| 2791 int java_lang_reflect_Method::returnType_offset; | |
| 2792 int java_lang_reflect_Method::parameterTypes_offset; | |
| 2793 int java_lang_reflect_Method::exceptionTypes_offset; | |
| 2794 int java_lang_reflect_Method::slot_offset; | |
| 2795 int java_lang_reflect_Method::modifiers_offset; | |
| 2796 int java_lang_reflect_Method::signature_offset; | |
| 2797 int java_lang_reflect_Method::annotations_offset; | |
| 2798 int java_lang_reflect_Method::parameter_annotations_offset; | |
| 2799 int java_lang_reflect_Method::annotation_default_offset; | |
| 2800 int java_lang_reflect_Constructor::clazz_offset; | |
| 2801 int java_lang_reflect_Constructor::parameterTypes_offset; | |
| 2802 int java_lang_reflect_Constructor::exceptionTypes_offset; | |
| 2803 int java_lang_reflect_Constructor::slot_offset; | |
| 2804 int java_lang_reflect_Constructor::modifiers_offset; | |
| 2805 int java_lang_reflect_Constructor::signature_offset; | |
| 2806 int java_lang_reflect_Constructor::annotations_offset; | |
| 2807 int java_lang_reflect_Constructor::parameter_annotations_offset; | |
| 2808 int java_lang_reflect_Field::clazz_offset; | |
| 2809 int java_lang_reflect_Field::name_offset; | |
| 2810 int java_lang_reflect_Field::type_offset; | |
| 2811 int java_lang_reflect_Field::slot_offset; | |
| 2812 int java_lang_reflect_Field::modifiers_offset; | |
| 2813 int java_lang_reflect_Field::signature_offset; | |
| 2814 int java_lang_reflect_Field::annotations_offset; | |
| 2815 int java_lang_boxing_object::value_offset; | |
|
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2816 int java_lang_boxing_object::long_value_offset; |
| 0 | 2817 int java_lang_ref_Reference::referent_offset; |
| 2818 int java_lang_ref_Reference::queue_offset; | |
| 2819 int java_lang_ref_Reference::next_offset; | |
| 2820 int java_lang_ref_Reference::discovered_offset; | |
| 2821 int java_lang_ref_Reference::static_lock_offset; | |
| 2822 int java_lang_ref_Reference::static_pending_offset; | |
| 2823 int java_lang_ref_Reference::number_of_fake_oop_fields; | |
| 2824 int java_lang_ref_SoftReference::timestamp_offset; | |
| 2825 int java_lang_ref_SoftReference::static_clock_offset; | |
| 2826 int java_lang_ClassLoader::parent_offset; | |
| 2827 int java_lang_System::static_in_offset; | |
| 2828 int java_lang_System::static_out_offset; | |
| 2829 int java_lang_System::static_err_offset; | |
| 2830 int java_lang_StackTraceElement::declaringClass_offset; | |
| 2831 int java_lang_StackTraceElement::methodName_offset; | |
| 2832 int java_lang_StackTraceElement::fileName_offset; | |
| 2833 int java_lang_StackTraceElement::lineNumber_offset; | |
| 2834 int java_lang_AssertionStatusDirectives::classes_offset; | |
| 2835 int java_lang_AssertionStatusDirectives::classEnabled_offset; | |
| 2836 int java_lang_AssertionStatusDirectives::packages_offset; | |
| 2837 int java_lang_AssertionStatusDirectives::packageEnabled_offset; | |
| 2838 int java_lang_AssertionStatusDirectives::deflt_offset; | |
| 2839 int java_nio_Buffer::_limit_offset; | |
| 2840 int java_util_concurrent_locks_AbstractOwnableSynchronizer::_owner_offset = 0; | |
| 2841 int sun_reflect_ConstantPool::_cp_oop_offset; | |
| 2842 int sun_reflect_UnsafeStaticFieldAccessorImpl::_base_offset; | |
| 2843 | |
| 2844 | |
| 2845 // Support for java_lang_StackTraceElement | |
| 2846 | |
| 2847 void java_lang_StackTraceElement::set_fileName(oop element, oop value) { | |
| 2848 element->obj_field_put(fileName_offset, value); | |
| 2849 } | |
| 2850 | |
| 2851 void java_lang_StackTraceElement::set_declaringClass(oop element, oop value) { | |
| 2852 element->obj_field_put(declaringClass_offset, value); | |
| 2853 } | |
| 2854 | |
| 2855 void java_lang_StackTraceElement::set_methodName(oop element, oop value) { | |
| 2856 element->obj_field_put(methodName_offset, value); | |
| 2857 } | |
| 2858 | |
| 2859 void java_lang_StackTraceElement::set_lineNumber(oop element, int value) { | |
| 2860 element->int_field_put(lineNumber_offset, value); | |
| 2861 } | |
| 2862 | |
| 2863 | |
| 2864 // Support for java Assertions - java_lang_AssertionStatusDirectives. | |
| 2865 | |
| 2866 void java_lang_AssertionStatusDirectives::set_classes(oop o, oop val) { | |
| 2867 o->obj_field_put(classes_offset, val); | |
| 2868 } | |
| 2869 | |
| 2870 void java_lang_AssertionStatusDirectives::set_classEnabled(oop o, oop val) { | |
| 2871 o->obj_field_put(classEnabled_offset, val); | |
| 2872 } | |
| 2873 | |
| 2874 void java_lang_AssertionStatusDirectives::set_packages(oop o, oop val) { | |
| 2875 o->obj_field_put(packages_offset, val); | |
| 2876 } | |
| 2877 | |
| 2878 void java_lang_AssertionStatusDirectives::set_packageEnabled(oop o, oop val) { | |
| 2879 o->obj_field_put(packageEnabled_offset, val); | |
| 2880 } | |
| 2881 | |
| 2882 void java_lang_AssertionStatusDirectives::set_deflt(oop o, bool val) { | |
| 2883 o->bool_field_put(deflt_offset, val); | |
| 2884 } | |
| 2885 | |
| 2886 | |
| 2887 // Support for intrinsification of java.nio.Buffer.checkIndex | |
| 2888 int java_nio_Buffer::limit_offset() { | |
| 2889 return _limit_offset; | |
| 2890 } | |
| 2891 | |
| 2892 | |
| 2893 void java_nio_Buffer::compute_offsets() { | |
| 3938 | 2894 klassOop k = SystemDictionary::nio_Buffer_klass(); |
|
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2895 assert(k != NULL, "must be loaded in 1.4+"); |
|
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|
2896 compute_offset(_limit_offset, k, vmSymbols::limit_name(), vmSymbols::int_signature()); |
| 0 | 2897 } |
| 2898 | |
| 2899 void java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(TRAPS) { | |
| 2900 if (_owner_offset != 0) return; | |
| 2901 | |
| 2902 assert(JDK_Version::is_gte_jdk16x_version(), "Must be JDK 1.6 or later"); | |
| 2903 SystemDictionary::load_abstract_ownable_synchronizer_klass(CHECK); | |
| 2904 klassOop k = SystemDictionary::abstract_ownable_synchronizer_klass(); | |
|
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|
2905 compute_offset(_owner_offset, k, |
| 0 | 2906 vmSymbols::exclusive_owner_thread_name(), vmSymbols::thread_signature()); |
| 2907 } | |
| 2908 | |
| 2909 oop java_util_concurrent_locks_AbstractOwnableSynchronizer::get_owner_threadObj(oop obj) { | |
| 2910 assert(_owner_offset != 0, "Must be initialized"); | |
| 2911 return obj->obj_field(_owner_offset); | |
| 2912 } | |
| 2913 | |
| 2914 // Compute hard-coded offsets | |
| 2915 // Invoked before SystemDictionary::initialize, so pre-loaded classes | |
| 2916 // are not available to determine the offset_of_static_fields. | |
| 2917 void JavaClasses::compute_hard_coded_offsets() { | |
|
113
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diff
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|
2918 const int x = heapOopSize; |
|
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|
2919 const int header = instanceOopDesc::base_offset_in_bytes(); |
| 0 | 2920 |
| 2921 // Throwable Class | |
| 2922 java_lang_Throwable::backtrace_offset = java_lang_Throwable::hc_backtrace_offset * x + header; | |
| 2923 java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header; | |
| 2924 java_lang_Throwable::cause_offset = java_lang_Throwable::hc_cause_offset * x + header; | |
| 2925 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
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3795
diff
changeset
|
2926 java_lang_Throwable::static_unassigned_stacktrace_offset = java_lang_Throwable::hc_static_unassigned_stacktrace_offset * x; |
| 0 | 2927 |
| 2928 // java_lang_boxing_object | |
|
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|
2929 java_lang_boxing_object::value_offset = java_lang_boxing_object::hc_value_offset + header; |
|
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2930 java_lang_boxing_object::long_value_offset = align_size_up((java_lang_boxing_object::hc_value_offset + header), BytesPerLong); |
| 0 | 2931 |
| 2932 // java_lang_ref_Reference: | |
| 2933 java_lang_ref_Reference::referent_offset = java_lang_ref_Reference::hc_referent_offset * x + header; | |
| 2934 java_lang_ref_Reference::queue_offset = java_lang_ref_Reference::hc_queue_offset * x + header; | |
| 2935 java_lang_ref_Reference::next_offset = java_lang_ref_Reference::hc_next_offset * x + header; | |
| 2936 java_lang_ref_Reference::discovered_offset = java_lang_ref_Reference::hc_discovered_offset * x + header; | |
| 2937 java_lang_ref_Reference::static_lock_offset = java_lang_ref_Reference::hc_static_lock_offset * x; | |
| 2938 java_lang_ref_Reference::static_pending_offset = java_lang_ref_Reference::hc_static_pending_offset * x; | |
| 2939 // Artificial fields for java_lang_ref_Reference | |
| 2940 // The first field is for the discovered field added in 1.4 | |
| 2941 java_lang_ref_Reference::number_of_fake_oop_fields = 1; | |
| 2942 | |
| 2943 // java_lang_ref_SoftReference Class | |
|
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2944 java_lang_ref_SoftReference::timestamp_offset = align_size_up((java_lang_ref_SoftReference::hc_timestamp_offset * x + header), BytesPerLong); |
| 0 | 2945 // Don't multiply static fields because they are always in wordSize units |
| 2946 java_lang_ref_SoftReference::static_clock_offset = java_lang_ref_SoftReference::hc_static_clock_offset * x; | |
| 2947 | |
| 2948 // java_lang_ClassLoader | |
| 2949 java_lang_ClassLoader::parent_offset = java_lang_ClassLoader::hc_parent_offset * x + header; | |
| 2950 | |
| 2951 // java_lang_System | |
| 2952 java_lang_System::static_in_offset = java_lang_System::hc_static_in_offset * x; | |
| 2953 java_lang_System::static_out_offset = java_lang_System::hc_static_out_offset * x; | |
| 2954 java_lang_System::static_err_offset = java_lang_System::hc_static_err_offset * x; | |
| 2955 | |
| 2956 // java_lang_StackTraceElement | |
| 2957 java_lang_StackTraceElement::declaringClass_offset = java_lang_StackTraceElement::hc_declaringClass_offset * x + header; | |
| 2958 java_lang_StackTraceElement::methodName_offset = java_lang_StackTraceElement::hc_methodName_offset * x + header; | |
| 2959 java_lang_StackTraceElement::fileName_offset = java_lang_StackTraceElement::hc_fileName_offset * x + header; | |
| 2960 java_lang_StackTraceElement::lineNumber_offset = java_lang_StackTraceElement::hc_lineNumber_offset * x + header; | |
| 2961 java_lang_AssertionStatusDirectives::classes_offset = java_lang_AssertionStatusDirectives::hc_classes_offset * x + header; | |
| 2962 java_lang_AssertionStatusDirectives::classEnabled_offset = java_lang_AssertionStatusDirectives::hc_classEnabled_offset * x + header; | |
| 2963 java_lang_AssertionStatusDirectives::packages_offset = java_lang_AssertionStatusDirectives::hc_packages_offset * x + header; | |
| 2964 java_lang_AssertionStatusDirectives::packageEnabled_offset = java_lang_AssertionStatusDirectives::hc_packageEnabled_offset * x + header; | |
| 2965 java_lang_AssertionStatusDirectives::deflt_offset = java_lang_AssertionStatusDirectives::hc_deflt_offset * x + header; | |
| 2966 | |
| 2967 } | |
| 2968 | |
| 2969 | |
| 2970 // Compute non-hard-coded field offsets of all the classes in this file | |
| 2971 void JavaClasses::compute_offsets() { | |
| 3938 | 2972 // java_lang_Class::compute_offsets was called earlier in bootstrap |
| 2973 java_lang_ClassLoader::compute_offsets(); | |
| 0 | 2974 java_lang_Thread::compute_offsets(); |
| 2975 java_lang_ThreadGroup::compute_offsets(); | |
|
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2379
diff
changeset
|
2976 if (EnableInvokeDynamic) { |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2977 java_lang_invoke_MethodHandle::compute_offsets(); |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2978 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
|
2979 java_lang_invoke_LambdaForm::compute_offsets(); |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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|
2980 java_lang_invoke_MethodType::compute_offsets(); |
|
8033953d67ff
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diff
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|
2981 java_lang_invoke_CallSite::compute_offsets(); |
|
726
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6655646: dynamic languages need dynamically linked call sites
jrose
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diff
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|
2982 } |
| 0 | 2983 java_security_AccessControlContext::compute_offsets(); |
| 2984 // Initialize reflection classes. The layouts of these classes | |
| 2985 // changed with the new reflection implementation in JDK 1.4, and | |
| 2986 // since the Universe doesn't know what JDK version it is until this | |
| 2987 // point we defer computation of these offsets until now. | |
| 2988 java_lang_reflect_AccessibleObject::compute_offsets(); | |
| 2989 java_lang_reflect_Method::compute_offsets(); | |
| 2990 java_lang_reflect_Constructor::compute_offsets(); | |
| 2991 java_lang_reflect_Field::compute_offsets(); | |
| 2992 if (JDK_Version::is_gte_jdk14x_version()) { | |
| 2993 java_nio_Buffer::compute_offsets(); | |
| 2994 } | |
| 2995 if (JDK_Version::is_gte_jdk15x_version()) { | |
| 2996 sun_reflect_ConstantPool::compute_offsets(); | |
| 2997 sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets(); | |
| 2998 } | |
| 710 | 2999 |
| 3000 // generated interpreter code wants to know about the offsets we just computed: | |
| 3001 AbstractAssembler::update_delayed_values(); | |
| 0 | 3002 } |
| 3003 | |
| 3004 #ifndef PRODUCT | |
| 3005 | |
| 3006 // These functions exist to assert the validity of hard-coded field offsets to guard | |
| 3007 // against changes in the class files | |
| 3008 | |
| 3009 bool JavaClasses::check_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
| 3010 EXCEPTION_MARK; | |
| 3011 fieldDescriptor fd; | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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1989
diff
changeset
|
3012 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
| 0 | 3013 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
| 3014 instanceKlassHandle h_klass (THREAD, k); | |
|
2177
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coleenp
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diff
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|
3015 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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1989
diff
changeset
|
3016 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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1989
diff
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|
3017 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
| 0 | 3018 tty->print_cr("Nonstatic field %s.%s not found", klass_name, field_name); |
| 3019 return false; | |
| 3020 } | |
| 3021 if (fd.is_static()) { | |
| 3022 tty->print_cr("Nonstatic field %s.%s appears to be static", klass_name, field_name); | |
| 3023 return false; | |
| 3024 } | |
| 3025 if (fd.offset() == hardcoded_offset ) { | |
| 3026 return true; | |
| 3027 } else { | |
| 3028 tty->print_cr("Offset of nonstatic field %s.%s is hardcoded as %d but should really be %d.", | |
| 3029 klass_name, field_name, hardcoded_offset, fd.offset()); | |
| 3030 return false; | |
| 3031 } | |
| 3032 } | |
| 3033 | |
| 3034 | |
| 3035 bool JavaClasses::check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
| 3036 EXCEPTION_MARK; | |
| 3037 fieldDescriptor fd; | |
|
2177
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diff
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|
3038 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
| 0 | 3039 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
| 3040 instanceKlassHandle h_klass (THREAD, k); | |
|
2177
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6990754: Use native memory and reference counting to implement SymbolTable
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|
3041 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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diff
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|
3042 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
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|
3043 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
| 0 | 3044 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
| 3045 return false; | |
| 3046 } | |
| 3047 if (!fd.is_static()) { | |
| 3048 tty->print_cr("Static field %s.%s appears to be nonstatic", klass_name, field_name); | |
| 3049 return false; | |
| 3050 } | |
|
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
3051 if (fd.offset() == hardcoded_offset + instanceMirrorKlass::offset_of_static_fields()) { |
| 0 | 3052 return true; |
| 3053 } else { | |
|
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
2357
diff
changeset
|
3054 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 | 3055 return false; |
| 3056 } | |
| 3057 } | |
| 3058 | |
| 3059 | |
|
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|
3060 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
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|
3061 EXCEPTION_MARK; |
|
60b728ec77c1
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jrose
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|
3062 fieldDescriptor fd; |
|
2177
3582bf76420e
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|
3063 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
|
132
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|
3064 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
|
60b728ec77c1
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jrose
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|
3065 instanceKlassHandle h_klass (THREAD, k); |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
changeset
|
3066 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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diff
changeset
|
3067 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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|
3068 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
|
132
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|
3069 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
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|
3070 return false; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
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diff
changeset
|
3071 } |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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diff
changeset
|
3072 if (!fd.is_static() || !fd.has_initial_value()) { |
|
60b728ec77c1
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|
3073 tty->print_cr("Static field %s.%s appears to be non-constant", klass_name, field_name); |
|
60b728ec77c1
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jrose
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diff
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|
3074 return false; |
|
60b728ec77c1
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jrose
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diff
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|
3075 } |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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diff
changeset
|
3076 if (!fd.initial_value_tag().is_int()) { |
|
60b728ec77c1
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jrose
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|
3077 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
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|
3078 return false; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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3079 } |
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3080 jint field_value = fd.int_initial_value(); |
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3081 if (field_value == hardcoded_constant) { |
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3082 return true; |
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3083 } else { |
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3084 tty->print_cr("Constant value of static field %s.%s is hardcoded as %d but should really be %d.", klass_name, field_name, hardcoded_constant, field_value); |
|
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3085 return false; |
|
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3086 } |
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3087 } |
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3088 |
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3089 |
| 0 | 3090 // Check the hard-coded field offsets of all the classes in this file |
| 3091 | |
| 3092 void JavaClasses::check_offsets() { | |
| 3093 bool valid = true; | |
| 3094 | |
| 3095 #define CHECK_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ | |
| 3096 valid &= check_offset(klass_name, cpp_klass_name :: field_name ## _offset, #field_name, field_sig) | |
| 3097 | |
|
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3098 #define CHECK_LONG_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
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3099 valid &= check_offset(klass_name, cpp_klass_name :: long_ ## field_name ## _offset, #field_name, field_sig) |
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3100 |
| 0 | 3101 #define CHECK_STATIC_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
| 3102 valid &= check_static_offset(klass_name, cpp_klass_name :: static_ ## field_name ## _offset, #field_name, field_sig) | |
| 3103 | |
|
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3104 #define CHECK_CONSTANT(klass_name, cpp_klass_name, field_name, field_sig) \ |
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3105 valid &= check_constant(klass_name, cpp_klass_name :: field_name, #field_name, field_sig) |
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3106 |
| 0 | 3107 // java.lang.String |
| 3108 | |
| 3109 CHECK_OFFSET("java/lang/String", java_lang_String, value, "[C"); | |
| 6057 | 3110 if (java_lang_String::has_offset_field()) { |
| 3111 CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I"); | |
| 3112 CHECK_OFFSET("java/lang/String", java_lang_String, count, "I"); | |
| 3113 } | |
| 3114 if (java_lang_String::has_hash_field()) { | |
| 3115 CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I"); | |
| 3116 } | |
| 0 | 3117 |
| 3118 // java.lang.Class | |
| 3119 | |
| 3120 // Fake fields | |
| 3121 // CHECK_OFFSET("java/lang/Class", java_lang_Class, klass); // %%% this needs to be checked | |
| 3122 // CHECK_OFFSET("java/lang/Class", java_lang_Class, array_klass); // %%% this needs to be checked | |
| 3123 // CHECK_OFFSET("java/lang/Class", java_lang_Class, resolved_constructor); // %%% this needs to be checked | |
| 3124 | |
| 3125 // java.lang.Throwable | |
| 3126 | |
| 3127 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, backtrace, "Ljava/lang/Object;"); | |
| 3128 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, detailMessage, "Ljava/lang/String;"); | |
| 3129 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, cause, "Ljava/lang/Throwable;"); | |
| 3130 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, stackTrace, "[Ljava/lang/StackTraceElement;"); | |
| 3131 | |
| 3132 // Boxed primitive objects (java_lang_boxing_object) | |
| 3133 | |
| 3134 CHECK_OFFSET("java/lang/Boolean", java_lang_boxing_object, value, "Z"); | |
| 3135 CHECK_OFFSET("java/lang/Character", java_lang_boxing_object, value, "C"); | |
| 3136 CHECK_OFFSET("java/lang/Float", java_lang_boxing_object, value, "F"); | |
|
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3137 CHECK_LONG_OFFSET("java/lang/Double", java_lang_boxing_object, value, "D"); |
| 0 | 3138 CHECK_OFFSET("java/lang/Byte", java_lang_boxing_object, value, "B"); |
| 3139 CHECK_OFFSET("java/lang/Short", java_lang_boxing_object, value, "S"); | |
| 3140 CHECK_OFFSET("java/lang/Integer", java_lang_boxing_object, value, "I"); | |
|
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3141 CHECK_LONG_OFFSET("java/lang/Long", java_lang_boxing_object, value, "J"); |
| 0 | 3142 |
| 3143 // java.lang.ClassLoader | |
| 3144 | |
| 3145 CHECK_OFFSET("java/lang/ClassLoader", java_lang_ClassLoader, parent, "Ljava/lang/ClassLoader;"); | |
| 3146 | |
| 3147 // java.lang.System | |
| 3148 | |
| 3149 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, in, "Ljava/io/InputStream;"); | |
| 3150 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, out, "Ljava/io/PrintStream;"); | |
| 3151 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, err, "Ljava/io/PrintStream;"); | |
| 3152 | |
| 3153 // java.lang.StackTraceElement | |
| 3154 | |
| 3155 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClass, "Ljava/lang/String;"); | |
| 3156 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, methodName, "Ljava/lang/String;"); | |
| 3157 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, fileName, "Ljava/lang/String;"); | |
| 3158 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, lineNumber, "I"); | |
| 3159 | |
| 3160 // java.lang.ref.Reference | |
| 3161 | |
| 3162 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, referent, "Ljava/lang/Object;"); | |
| 3163 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, queue, "Ljava/lang/ref/ReferenceQueue;"); | |
| 3164 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, next, "Ljava/lang/ref/Reference;"); | |
| 3165 // Fake field | |
| 3166 //CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, discovered, "Ljava/lang/ref/Reference;"); | |
| 3167 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, lock, "Ljava/lang/ref/Reference$Lock;"); | |
| 3168 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, pending, "Ljava/lang/ref/Reference;"); | |
| 3169 | |
| 3170 // java.lang.ref.SoftReference | |
| 3171 | |
| 3172 CHECK_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, timestamp, "J"); | |
| 3173 CHECK_STATIC_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, clock, "J"); | |
| 3174 | |
| 3175 // java.lang.AssertionStatusDirectives | |
| 3176 // | |
| 3177 // The CheckAssertionStatusDirectives boolean can be removed from here and | |
| 3178 // globals.hpp after the AssertionStatusDirectives class has been integrated | |
| 3179 // into merlin "for some time." Without it, the vm will fail with early | |
| 3180 // merlin builds. | |
| 3181 | |
| 3182 if (CheckAssertionStatusDirectives && JDK_Version::is_gte_jdk14x_version()) { | |
| 3183 const char* nm = "java/lang/AssertionStatusDirectives"; | |
| 3184 const char* sig = "[Ljava/lang/String;"; | |
| 3185 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classes, sig); | |
| 3186 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classEnabled, "[Z"); | |
| 3187 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packages, sig); | |
| 3188 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packageEnabled, "[Z"); | |
| 3189 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, deflt, "Z"); | |
| 3190 } | |
| 3191 | |
| 3192 if (!valid) vm_exit_during_initialization("Hard-coded field offset verification failed"); | |
| 3193 } | |
| 3194 | |
| 3195 #endif // PRODUCT | |
| 3196 | |
| 3938 | 3197 int InjectedField::compute_offset() { |
| 3198 klassOop klass_oop = klass(); | |
| 3199 for (AllFieldStream fs(instanceKlass::cast(klass_oop)); !fs.done(); fs.next()) { | |
| 3200 if (!may_be_java && !fs.access_flags().is_internal()) { | |
| 3201 // Only look at injected fields | |
| 3202 continue; | |
| 3203 } | |
| 3204 if (fs.name() == name() && fs.signature() == signature()) { | |
| 3205 return fs.offset(); | |
| 3206 } | |
| 3207 } | |
| 3208 ResourceMark rm; | |
|
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3209 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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|
3210 #ifndef PRODUCT |
|
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|
3211 klass_oop->print(); |
|
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3212 tty->print_cr("all fields:"); |
|
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|
3213 for (AllFieldStream fs(instanceKlass::cast(klass_oop)); !fs.done(); fs.next()) { |
|
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|
3214 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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|
3215 } |
|
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|
3216 #endif //PRODUCT |
| 3938 | 3217 fatal("Invalid layout of preloaded class"); |
| 3218 return -1; | |
| 3219 } | |
| 3220 | |
| 0 | 3221 void javaClasses_init() { |
| 3222 JavaClasses::compute_offsets(); | |
| 3223 JavaClasses::check_offsets(); | |
| 3224 FilteredFieldsMap::initialize(); // must be done after computing offsets. | |
| 3225 } |