Mercurial > hg > truffle
annotate src/share/vm/classfile/javaClasses.cpp @ 1972:f95d63e2154a
6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg
| author | stefank |
|---|---|
| date | Tue, 23 Nov 2010 13:22:55 -0800 |
| parents | d257356e35f0 |
| children | 828eafbd85cc |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "classfile/javaClasses.hpp" | |
| 27 #include "classfile/symbolTable.hpp" | |
| 28 #include "classfile/vmSymbols.hpp" | |
| 29 #include "code/debugInfo.hpp" | |
| 30 #include "code/pcDesc.hpp" | |
| 31 #include "interpreter/interpreter.hpp" | |
| 32 #include "memory/oopFactory.hpp" | |
| 33 #include "memory/resourceArea.hpp" | |
| 34 #include "memory/universe.inline.hpp" | |
| 35 #include "oops/instanceKlass.hpp" | |
| 36 #include "oops/klass.hpp" | |
| 37 #include "oops/klassOop.hpp" | |
| 38 #include "oops/methodOop.hpp" | |
| 39 #include "oops/symbolOop.hpp" | |
| 40 #include "oops/typeArrayOop.hpp" | |
| 41 #include "runtime/fieldDescriptor.hpp" | |
| 42 #include "runtime/handles.inline.hpp" | |
| 43 #include "runtime/interfaceSupport.hpp" | |
| 44 #include "runtime/java.hpp" | |
| 45 #include "runtime/javaCalls.hpp" | |
| 46 #include "runtime/safepoint.hpp" | |
| 47 #include "runtime/vframe.hpp" | |
| 48 #include "utilities/preserveException.hpp" | |
| 49 #ifdef TARGET_OS_FAMILY_linux | |
| 50 # include "thread_linux.inline.hpp" | |
| 51 #endif | |
| 52 #ifdef TARGET_OS_FAMILY_solaris | |
| 53 # include "thread_solaris.inline.hpp" | |
| 54 #endif | |
| 55 #ifdef TARGET_OS_FAMILY_windows | |
| 56 # include "thread_windows.inline.hpp" | |
| 57 #endif | |
| 0 | 58 |
| 710 | 59 static bool find_field(instanceKlass* ik, |
| 60 symbolOop name_symbol, symbolOop signature_symbol, | |
| 61 fieldDescriptor* fd, | |
| 62 bool allow_super = false) { | |
| 63 if (allow_super) | |
| 64 return ik->find_field(name_symbol, signature_symbol, fd) != NULL; | |
| 65 else | |
| 66 return ik->find_local_field(name_symbol, signature_symbol, fd); | |
| 67 } | |
| 68 | |
|
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69 // Helpful routine for computing field offsets at run time rather than hardcoding them |
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70 static void |
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71 compute_offset(int &dest_offset, |
| 710 | 72 klassOop klass_oop, symbolOop name_symbol, symbolOop signature_symbol, |
| 73 bool allow_super = false) { | |
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74 fieldDescriptor fd; |
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75 instanceKlass* ik = instanceKlass::cast(klass_oop); |
| 710 | 76 if (!find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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77 ResourceMark rm; |
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78 tty->print_cr("Invalid layout of %s at %s", ik->external_name(), name_symbol->as_C_string()); |
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79 fatal("Invalid layout of preloaded class"); |
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80 } |
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81 dest_offset = fd.offset(); |
| 0 | 82 } |
| 83 | |
| 84 // Same as above but for "optional" offsets that might not be present in certain JDK versions | |
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85 static void |
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86 compute_optional_offset(int& dest_offset, |
| 710 | 87 klassOop klass_oop, symbolOop name_symbol, symbolOop signature_symbol, |
| 88 bool allow_super = false) { | |
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89 fieldDescriptor fd; |
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90 instanceKlass* ik = instanceKlass::cast(klass_oop); |
| 710 | 91 if (find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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92 dest_offset = fd.offset(); |
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93 } |
| 0 | 94 } |
| 95 | |
| 710 | 96 |
| 0 | 97 Handle java_lang_String::basic_create(int length, bool tenured, TRAPS) { |
| 98 // Create the String object first, so there's a chance that the String | |
| 99 // and the char array it points to end up in the same cache line. | |
| 100 oop obj; | |
| 101 if (tenured) { | |
| 1142 | 102 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_permanent_instance(CHECK_NH); |
| 0 | 103 } else { |
| 1142 | 104 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_instance(CHECK_NH); |
| 0 | 105 } |
| 106 | |
| 107 // Create the char array. The String object must be handlized here | |
| 108 // because GC can happen as a result of the allocation attempt. | |
| 109 Handle h_obj(THREAD, obj); | |
| 110 typeArrayOop buffer; | |
| 111 if (tenured) { | |
| 112 buffer = oopFactory::new_permanent_charArray(length, CHECK_NH); | |
| 113 } else { | |
| 114 buffer = oopFactory::new_charArray(length, CHECK_NH); | |
| 115 } | |
| 116 | |
| 117 // Point the String at the char array | |
| 118 obj = h_obj(); | |
| 119 set_value(obj, buffer); | |
| 120 // No need to zero the offset, allocation zero'ed the entire String object | |
| 121 assert(offset(obj) == 0, "initial String offset should be zero"); | |
| 122 //set_offset(obj, 0); | |
| 123 set_count(obj, length); | |
| 124 | |
| 125 return h_obj; | |
| 126 } | |
| 127 | |
| 128 Handle java_lang_String::basic_create_from_unicode(jchar* unicode, int length, bool tenured, TRAPS) { | |
| 129 Handle h_obj = basic_create(length, tenured, CHECK_NH); | |
| 130 typeArrayOop buffer = value(h_obj()); | |
| 131 for (int index = 0; index < length; index++) { | |
| 132 buffer->char_at_put(index, unicode[index]); | |
| 133 } | |
| 134 return h_obj; | |
| 135 } | |
| 136 | |
| 137 Handle java_lang_String::create_from_unicode(jchar* unicode, int length, TRAPS) { | |
| 138 return basic_create_from_unicode(unicode, length, false, CHECK_NH); | |
| 139 } | |
| 140 | |
| 141 Handle java_lang_String::create_tenured_from_unicode(jchar* unicode, int length, TRAPS) { | |
| 142 return basic_create_from_unicode(unicode, length, true, CHECK_NH); | |
| 143 } | |
| 144 | |
| 145 oop java_lang_String::create_oop_from_unicode(jchar* unicode, int length, TRAPS) { | |
| 146 Handle h_obj = basic_create_from_unicode(unicode, length, false, CHECK_0); | |
| 147 return h_obj(); | |
| 148 } | |
| 149 | |
| 150 Handle java_lang_String::create_from_str(const char* utf8_str, TRAPS) { | |
| 151 if (utf8_str == NULL) { | |
| 152 return Handle(); | |
| 153 } | |
| 154 int length = UTF8::unicode_length(utf8_str); | |
| 155 Handle h_obj = basic_create(length, false, CHECK_NH); | |
| 156 if (length > 0) { | |
| 157 UTF8::convert_to_unicode(utf8_str, value(h_obj())->char_at_addr(0), length); | |
| 158 } | |
| 159 return h_obj; | |
| 160 } | |
| 161 | |
| 162 oop java_lang_String::create_oop_from_str(const char* utf8_str, TRAPS) { | |
| 163 Handle h_obj = create_from_str(utf8_str, CHECK_0); | |
| 164 return h_obj(); | |
| 165 } | |
| 166 | |
| 167 Handle java_lang_String::create_from_symbol(symbolHandle symbol, TRAPS) { | |
| 168 int length = UTF8::unicode_length((char*)symbol->bytes(), symbol->utf8_length()); | |
| 169 Handle h_obj = basic_create(length, false, CHECK_NH); | |
| 170 if (length > 0) { | |
| 171 UTF8::convert_to_unicode((char*)symbol->bytes(), value(h_obj())->char_at_addr(0), length); | |
| 172 } | |
| 173 return h_obj; | |
| 174 } | |
| 175 | |
| 176 // Converts a C string to a Java String based on current encoding | |
| 177 Handle java_lang_String::create_from_platform_dependent_str(const char* str, TRAPS) { | |
| 178 assert(str != NULL, "bad arguments"); | |
| 179 | |
| 180 typedef jstring (*to_java_string_fn_t)(JNIEnv*, const char *); | |
| 181 static to_java_string_fn_t _to_java_string_fn = NULL; | |
| 182 | |
| 183 if (_to_java_string_fn == NULL) { | |
| 184 void *lib_handle = os::native_java_library(); | |
| 185 _to_java_string_fn = CAST_TO_FN_PTR(to_java_string_fn_t, hpi::dll_lookup(lib_handle, "NewStringPlatform")); | |
| 186 if (_to_java_string_fn == NULL) { | |
| 187 fatal("NewStringPlatform missing"); | |
| 188 } | |
| 189 } | |
| 190 | |
| 191 jstring js = NULL; | |
| 192 { JavaThread* thread = (JavaThread*)THREAD; | |
| 193 assert(thread->is_Java_thread(), "must be java thread"); | |
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194 HandleMark hm(thread); |
| 0 | 195 ThreadToNativeFromVM ttn(thread); |
| 196 js = (_to_java_string_fn)(thread->jni_environment(), str); | |
| 197 } | |
| 198 return Handle(THREAD, JNIHandles::resolve(js)); | |
| 199 } | |
| 200 | |
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201 // Converts a Java String to a native C string that can be used for |
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202 // native OS calls. |
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203 char* java_lang_String::as_platform_dependent_str(Handle java_string, TRAPS) { |
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204 |
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205 typedef char* (*to_platform_string_fn_t)(JNIEnv*, jstring, bool*); |
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206 static to_platform_string_fn_t _to_platform_string_fn = NULL; |
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207 |
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208 if (_to_platform_string_fn == NULL) { |
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209 void *lib_handle = os::native_java_library(); |
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210 _to_platform_string_fn = CAST_TO_FN_PTR(to_platform_string_fn_t, hpi::dll_lookup(lib_handle, "GetStringPlatformChars")); |
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211 if (_to_platform_string_fn == NULL) { |
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212 fatal("GetStringPlatformChars missing"); |
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213 } |
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214 } |
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215 |
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216 char *native_platform_string; |
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217 { JavaThread* thread = (JavaThread*)THREAD; |
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218 assert(thread->is_Java_thread(), "must be java thread"); |
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219 JNIEnv *env = thread->jni_environment(); |
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220 jstring js = (jstring) JNIHandles::make_local(env, java_string()); |
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221 bool is_copy; |
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222 HandleMark hm(thread); |
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223 ThreadToNativeFromVM ttn(thread); |
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224 native_platform_string = (_to_platform_string_fn)(env, js, &is_copy); |
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225 assert(is_copy == JNI_TRUE, "is_copy value changed"); |
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226 JNIHandles::destroy_local(js); |
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227 } |
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228 return native_platform_string; |
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229 } |
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230 |
| 0 | 231 Handle java_lang_String::char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS) { |
| 232 oop obj = java_string(); | |
| 233 // Typical usage is to convert all '/' to '.' in string. | |
| 234 typeArrayOop value = java_lang_String::value(obj); | |
| 235 int offset = java_lang_String::offset(obj); | |
| 236 int length = java_lang_String::length(obj); | |
| 237 | |
| 238 // First check if any from_char exist | |
| 239 int index; // Declared outside, used later | |
| 240 for (index = 0; index < length; index++) { | |
| 241 if (value->char_at(index + offset) == from_char) { | |
| 242 break; | |
| 243 } | |
| 244 } | |
| 245 if (index == length) { | |
| 246 // No from_char, so do not copy. | |
| 247 return java_string; | |
| 248 } | |
| 249 | |
| 250 // Create new UNICODE buffer. Must handlize value because GC | |
| 251 // may happen during String and char array creation. | |
| 252 typeArrayHandle h_value(THREAD, value); | |
| 253 Handle string = basic_create(length, false, CHECK_NH); | |
| 254 | |
| 255 typeArrayOop from_buffer = h_value(); | |
| 256 typeArrayOop to_buffer = java_lang_String::value(string()); | |
| 257 | |
| 258 // Copy contents | |
| 259 for (index = 0; index < length; index++) { | |
| 260 jchar c = from_buffer->char_at(index + offset); | |
| 261 if (c == from_char) { | |
| 262 c = to_char; | |
| 263 } | |
| 264 to_buffer->char_at_put(index, c); | |
| 265 } | |
| 266 return string; | |
| 267 } | |
| 268 | |
| 269 jchar* java_lang_String::as_unicode_string(oop java_string, int& length) { | |
| 270 typeArrayOop value = java_lang_String::value(java_string); | |
| 271 int offset = java_lang_String::offset(java_string); | |
| 272 length = java_lang_String::length(java_string); | |
| 273 | |
| 274 jchar* result = NEW_RESOURCE_ARRAY(jchar, length); | |
| 275 for (int index = 0; index < length; index++) { | |
| 276 result[index] = value->char_at(index + offset); | |
| 277 } | |
| 278 return result; | |
| 279 } | |
| 280 | |
| 281 symbolHandle java_lang_String::as_symbol(Handle java_string, TRAPS) { | |
| 282 oop obj = java_string(); | |
| 283 typeArrayOop value = java_lang_String::value(obj); | |
| 284 int offset = java_lang_String::offset(obj); | |
| 285 int length = java_lang_String::length(obj); | |
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286 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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287 symbolOop sym = SymbolTable::lookup_unicode(base, length, THREAD); |
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288 return symbolHandle(THREAD, sym); |
| 0 | 289 } |
| 290 | |
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291 symbolOop java_lang_String::as_symbol_or_null(oop java_string) { |
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292 typeArrayOop value = java_lang_String::value(java_string); |
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293 int offset = java_lang_String::offset(java_string); |
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294 int length = java_lang_String::length(java_string); |
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295 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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296 return SymbolTable::probe_unicode(base, length); |
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297 } |
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298 |
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299 |
| 0 | 300 int java_lang_String::utf8_length(oop java_string) { |
| 301 typeArrayOop value = java_lang_String::value(java_string); | |
| 302 int offset = java_lang_String::offset(java_string); | |
| 303 int length = java_lang_String::length(java_string); | |
| 304 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
| 305 return UNICODE::utf8_length(position, length); | |
| 306 } | |
| 307 | |
| 308 char* java_lang_String::as_utf8_string(oop java_string) { | |
| 309 typeArrayOop value = java_lang_String::value(java_string); | |
| 310 int offset = java_lang_String::offset(java_string); | |
| 311 int length = java_lang_String::length(java_string); | |
| 312 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
| 313 return UNICODE::as_utf8(position, length); | |
| 314 } | |
| 315 | |
| 316 char* java_lang_String::as_utf8_string(oop java_string, int start, int len) { | |
| 317 typeArrayOop value = java_lang_String::value(java_string); | |
| 318 int offset = java_lang_String::offset(java_string); | |
| 319 int length = java_lang_String::length(java_string); | |
| 320 assert(start + len <= length, "just checking"); | |
| 321 jchar* position = value->char_at_addr(offset + start); | |
| 322 return UNICODE::as_utf8(position, len); | |
| 323 } | |
| 324 | |
| 325 bool java_lang_String::equals(oop java_string, jchar* chars, int len) { | |
| 326 assert(SharedSkipVerify || | |
| 1142 | 327 java_string->klass() == SystemDictionary::String_klass(), |
| 0 | 328 "must be java_string"); |
| 329 typeArrayOop value = java_lang_String::value(java_string); | |
| 330 int offset = java_lang_String::offset(java_string); | |
| 331 int length = java_lang_String::length(java_string); | |
| 332 if (length != len) { | |
| 333 return false; | |
| 334 } | |
| 335 for (int i = 0; i < len; i++) { | |
| 336 if (value->char_at(i + offset) != chars[i]) { | |
| 337 return false; | |
| 338 } | |
| 339 } | |
| 340 return true; | |
| 341 } | |
| 342 | |
| 343 void java_lang_String::print(Handle java_string, outputStream* st) { | |
| 344 oop obj = java_string(); | |
| 1142 | 345 assert(obj->klass() == SystemDictionary::String_klass(), "must be java_string"); |
| 0 | 346 typeArrayOop value = java_lang_String::value(obj); |
| 347 int offset = java_lang_String::offset(obj); | |
| 348 int length = java_lang_String::length(obj); | |
| 349 | |
| 350 int end = MIN2(length, 100); | |
| 351 if (value == NULL) { | |
| 352 // This can happen if, e.g., printing a String | |
| 353 // object before its initializer has been called | |
| 354 st->print_cr("NULL"); | |
| 355 } else { | |
| 356 st->print("\""); | |
| 357 for (int index = 0; index < length; index++) { | |
| 358 st->print("%c", value->char_at(index + offset)); | |
| 359 } | |
| 360 st->print("\""); | |
| 361 } | |
| 362 } | |
| 363 | |
| 364 | |
| 365 oop java_lang_Class::create_mirror(KlassHandle k, TRAPS) { | |
| 366 assert(k->java_mirror() == NULL, "should only assign mirror once"); | |
| 367 // Use this moment of initialization to cache modifier_flags also, | |
| 368 // to support Class.getModifiers(). Instance classes recalculate | |
| 369 // the cached flags after the class file is parsed, but before the | |
| 370 // class is put into the system dictionary. | |
| 371 int computed_modifiers = k->compute_modifier_flags(CHECK_0); | |
| 372 k->set_modifier_flags(computed_modifiers); | |
| 1142 | 373 if (SystemDictionary::Class_klass_loaded()) { |
| 0 | 374 // Allocate mirror (java.lang.Class instance) |
| 1142 | 375 Handle mirror = instanceKlass::cast(SystemDictionary::Class_klass())->allocate_permanent_instance(CHECK_0); |
| 0 | 376 // Setup indirections |
| 377 mirror->obj_field_put(klass_offset, k()); | |
| 378 k->set_java_mirror(mirror()); | |
| 379 // It might also have a component mirror. This mirror must already exist. | |
| 380 if (k->oop_is_javaArray()) { | |
| 381 Handle comp_mirror; | |
| 382 if (k->oop_is_typeArray()) { | |
| 383 BasicType type = typeArrayKlass::cast(k->as_klassOop())->element_type(); | |
| 384 comp_mirror = Universe::java_mirror(type); | |
| 385 assert(comp_mirror.not_null(), "must have primitive mirror"); | |
| 386 } else if (k->oop_is_objArray()) { | |
| 387 klassOop element_klass = objArrayKlass::cast(k->as_klassOop())->element_klass(); | |
| 388 if (element_klass != NULL | |
| 389 && (Klass::cast(element_klass)->oop_is_instance() || | |
| 390 Klass::cast(element_klass)->oop_is_javaArray())) { | |
| 391 comp_mirror = Klass::cast(element_klass)->java_mirror(); | |
| 392 assert(comp_mirror.not_null(), "must have element mirror"); | |
| 393 } | |
| 394 // else some object array internal to the VM, like systemObjArrayKlassObj | |
| 395 } | |
| 396 if (comp_mirror.not_null()) { | |
| 397 // Two-way link between the array klass and its component mirror: | |
| 398 arrayKlass::cast(k->as_klassOop())->set_component_mirror(comp_mirror()); | |
| 399 set_array_klass(comp_mirror(), k->as_klassOop()); | |
| 400 } | |
| 401 } | |
| 402 return mirror(); | |
| 403 } else { | |
| 404 return NULL; | |
| 405 } | |
| 406 } | |
| 407 | |
| 408 | |
| 409 oop java_lang_Class::create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS) { | |
| 410 // This should be improved by adding a field at the Java level or by | |
| 411 // introducing a new VM klass (see comment in ClassFileParser) | |
| 1142 | 412 oop java_class = instanceKlass::cast(SystemDictionary::Class_klass())->allocate_permanent_instance(CHECK_0); |
| 0 | 413 if (type != T_VOID) { |
| 414 klassOop aklass = Universe::typeArrayKlassObj(type); | |
| 415 assert(aklass != NULL, "correct bootstrap"); | |
| 416 set_array_klass(java_class, aklass); | |
| 417 } | |
| 418 return java_class; | |
| 419 } | |
| 420 | |
| 421 | |
| 422 klassOop java_lang_Class::as_klassOop(oop java_class) { | |
| 423 //%note memory_2 | |
| 424 klassOop k = klassOop(java_class->obj_field(klass_offset)); | |
| 425 assert(k == NULL || k->is_klass(), "type check"); | |
| 426 return k; | |
| 427 } | |
| 428 | |
| 429 | |
|
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430 void java_lang_Class::print_signature(oop java_class, outputStream* st) { |
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431 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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432 symbolOop name = NULL; |
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433 bool is_instance = false; |
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434 if (is_primitive(java_class)) { |
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435 name = vmSymbols::type_signature(primitive_type(java_class)); |
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436 } else { |
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437 klassOop k = as_klassOop(java_class); |
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438 is_instance = Klass::cast(k)->oop_is_instance(); |
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439 name = Klass::cast(k)->name(); |
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440 } |
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441 if (name == NULL) { |
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442 st->print("<null>"); |
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443 return; |
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444 } |
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445 if (is_instance) st->print("L"); |
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446 st->write((char*) name->base(), (int) name->utf8_length()); |
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447 if (is_instance) st->print(";"); |
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448 } |
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449 |
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450 symbolOop java_lang_Class::as_signature(oop java_class, bool intern_if_not_found, TRAPS) { |
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451 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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452 symbolOop name = NULL; |
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453 if (is_primitive(java_class)) { |
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454 return vmSymbols::type_signature(primitive_type(java_class)); |
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455 } else { |
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456 klassOop k = as_klassOop(java_class); |
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457 if (!Klass::cast(k)->oop_is_instance()) { |
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458 return Klass::cast(k)->name(); |
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459 } else { |
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460 ResourceMark rm; |
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461 const char* sigstr = Klass::cast(k)->signature_name(); |
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462 int siglen = (int) strlen(sigstr); |
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463 if (!intern_if_not_found) |
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464 return SymbolTable::probe(sigstr, siglen); |
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465 else |
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466 return oopFactory::new_symbol(sigstr, siglen, THREAD); |
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467 } |
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468 } |
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469 } |
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470 |
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471 |
| 0 | 472 klassOop java_lang_Class::array_klass(oop java_class) { |
| 473 klassOop k = klassOop(java_class->obj_field(array_klass_offset)); | |
| 474 assert(k == NULL || k->is_klass() && Klass::cast(k)->oop_is_javaArray(), "should be array klass"); | |
| 475 return k; | |
| 476 } | |
| 477 | |
| 478 | |
| 479 void java_lang_Class::set_array_klass(oop java_class, klassOop klass) { | |
| 480 assert(klass->is_klass() && Klass::cast(klass)->oop_is_javaArray(), "should be array klass"); | |
| 481 java_class->obj_field_put(array_klass_offset, klass); | |
| 482 } | |
| 483 | |
| 484 | |
| 485 methodOop java_lang_Class::resolved_constructor(oop java_class) { | |
| 486 oop constructor = java_class->obj_field(resolved_constructor_offset); | |
| 487 assert(constructor == NULL || constructor->is_method(), "should be method"); | |
| 488 return methodOop(constructor); | |
| 489 } | |
| 490 | |
| 491 | |
| 492 void java_lang_Class::set_resolved_constructor(oop java_class, methodOop constructor) { | |
| 493 assert(constructor->is_method(), "should be method"); | |
| 494 java_class->obj_field_put(resolved_constructor_offset, constructor); | |
| 495 } | |
| 496 | |
| 497 | |
| 498 bool java_lang_Class::is_primitive(oop java_class) { | |
|
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499 // should assert: |
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500 //assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
| 0 | 501 klassOop k = klassOop(java_class->obj_field(klass_offset)); |
| 502 return k == NULL; | |
| 503 } | |
| 504 | |
| 505 | |
| 506 BasicType java_lang_Class::primitive_type(oop java_class) { | |
| 507 assert(java_lang_Class::is_primitive(java_class), "just checking"); | |
| 508 klassOop ak = klassOop(java_class->obj_field(array_klass_offset)); | |
| 509 BasicType type = T_VOID; | |
| 510 if (ak != NULL) { | |
| 511 // Note: create_basic_type_mirror above initializes ak to a non-null value. | |
| 512 type = arrayKlass::cast(ak)->element_type(); | |
| 513 } else { | |
| 514 assert(java_class == Universe::void_mirror(), "only valid non-array primitive"); | |
| 515 } | |
| 516 assert(Universe::java_mirror(type) == java_class, "must be consistent"); | |
| 517 return type; | |
| 518 } | |
| 519 | |
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520 BasicType java_lang_Class::as_BasicType(oop java_class, klassOop* reference_klass) { |
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521 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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522 if (is_primitive(java_class)) { |
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523 if (reference_klass != NULL) |
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524 (*reference_klass) = NULL; |
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525 return primitive_type(java_class); |
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526 } else { |
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527 if (reference_klass != NULL) |
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528 (*reference_klass) = as_klassOop(java_class); |
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529 return T_OBJECT; |
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530 } |
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531 } |
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532 |
| 0 | 533 |
| 534 oop java_lang_Class::primitive_mirror(BasicType t) { | |
| 535 oop mirror = Universe::java_mirror(t); | |
| 1142 | 536 assert(mirror != NULL && mirror->is_a(SystemDictionary::Class_klass()), "must be a Class"); |
| 0 | 537 assert(java_lang_Class::is_primitive(mirror), "must be primitive"); |
| 538 return mirror; | |
| 539 } | |
| 540 | |
| 541 bool java_lang_Class::offsets_computed = false; | |
| 542 int java_lang_Class::classRedefinedCount_offset = -1; | |
| 514 | 543 int java_lang_Class::parallelCapable_offset = -1; |
| 0 | 544 |
| 545 void java_lang_Class::compute_offsets() { | |
| 546 assert(!offsets_computed, "offsets should be initialized only once"); | |
| 547 offsets_computed = true; | |
| 548 | |
| 1142 | 549 klassOop k = SystemDictionary::Class_klass(); |
| 0 | 550 // The classRedefinedCount field is only present starting in 1.5, |
| 551 // so don't go fatal. | |
|
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552 compute_optional_offset(classRedefinedCount_offset, |
| 0 | 553 k, vmSymbols::classRedefinedCount_name(), vmSymbols::int_signature()); |
| 514 | 554 |
| 555 // The field indicating parallelCapable (parallelLockMap) is only present starting in 7, | |
| 1142 | 556 klassOop k1 = SystemDictionary::ClassLoader_klass(); |
| 514 | 557 compute_optional_offset(parallelCapable_offset, |
| 558 k1, vmSymbols::parallelCapable_name(), vmSymbols::concurrenthashmap_signature()); | |
| 559 } | |
| 560 | |
| 561 // For class loader classes, parallelCapable defined | |
| 562 // based on non-null field | |
| 563 // Written to by java.lang.ClassLoader, vm only reads this field, doesn't set it | |
| 564 bool java_lang_Class::parallelCapable(oop class_loader) { | |
| 565 if (!JDK_Version::is_gte_jdk17x_version() | |
| 566 || parallelCapable_offset == -1) { | |
| 567 // Default for backward compatibility is false | |
| 568 return false; | |
| 569 } | |
| 570 return (class_loader->obj_field(parallelCapable_offset) != NULL); | |
| 0 | 571 } |
| 572 | |
| 573 int java_lang_Class::classRedefinedCount(oop the_class_mirror) { | |
| 574 if (!JDK_Version::is_gte_jdk15x_version() | |
| 575 || classRedefinedCount_offset == -1) { | |
| 576 // The classRedefinedCount field is only present starting in 1.5. | |
| 577 // If we don't have an offset for it then just return -1 as a marker. | |
| 578 return -1; | |
| 579 } | |
| 580 | |
| 581 return the_class_mirror->int_field(classRedefinedCount_offset); | |
| 582 } | |
| 583 | |
| 584 void java_lang_Class::set_classRedefinedCount(oop the_class_mirror, int value) { | |
| 585 if (!JDK_Version::is_gte_jdk15x_version() | |
| 586 || classRedefinedCount_offset == -1) { | |
| 587 // The classRedefinedCount field is only present starting in 1.5. | |
| 588 // If we don't have an offset for it then nothing to set. | |
| 589 return; | |
| 590 } | |
| 591 | |
| 592 the_class_mirror->int_field_put(classRedefinedCount_offset, value); | |
| 593 } | |
| 594 | |
| 595 | |
| 596 // Note: JDK1.1 and before had a privateInfo_offset field which was used for the | |
| 597 // platform thread structure, and a eetop offset which was used for thread | |
| 598 // local storage (and unused by the HotSpot VM). In JDK1.2 the two structures | |
| 599 // merged, so in the HotSpot VM we just use the eetop field for the thread | |
| 600 // instead of the privateInfo_offset. | |
| 601 // | |
| 602 // Note: The stackSize field is only present starting in 1.4. | |
| 603 | |
| 604 int java_lang_Thread::_name_offset = 0; | |
| 605 int java_lang_Thread::_group_offset = 0; | |
| 606 int java_lang_Thread::_contextClassLoader_offset = 0; | |
| 607 int java_lang_Thread::_inheritedAccessControlContext_offset = 0; | |
| 608 int java_lang_Thread::_priority_offset = 0; | |
| 609 int java_lang_Thread::_eetop_offset = 0; | |
| 610 int java_lang_Thread::_daemon_offset = 0; | |
| 611 int java_lang_Thread::_stillborn_offset = 0; | |
| 612 int java_lang_Thread::_stackSize_offset = 0; | |
| 613 int java_lang_Thread::_tid_offset = 0; | |
| 614 int java_lang_Thread::_thread_status_offset = 0; | |
| 615 int java_lang_Thread::_park_blocker_offset = 0; | |
| 616 int java_lang_Thread::_park_event_offset = 0 ; | |
| 617 | |
| 618 | |
| 619 void java_lang_Thread::compute_offsets() { | |
| 620 assert(_group_offset == 0, "offsets should be initialized only once"); | |
| 621 | |
| 1142 | 622 klassOop k = SystemDictionary::Thread_klass(); |
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623 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::char_array_signature()); |
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624 compute_offset(_group_offset, k, vmSymbols::group_name(), vmSymbols::threadgroup_signature()); |
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625 compute_offset(_contextClassLoader_offset, k, vmSymbols::contextClassLoader_name(), vmSymbols::classloader_signature()); |
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626 compute_offset(_inheritedAccessControlContext_offset, k, vmSymbols::inheritedAccessControlContext_name(), vmSymbols::accesscontrolcontext_signature()); |
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627 compute_offset(_priority_offset, k, vmSymbols::priority_name(), vmSymbols::int_signature()); |
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628 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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629 compute_offset(_eetop_offset, k, vmSymbols::eetop_name(), vmSymbols::long_signature()); |
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630 compute_offset(_stillborn_offset, k, vmSymbols::stillborn_name(), vmSymbols::bool_signature()); |
| 0 | 631 // The stackSize field is only present starting in 1.4, so don't go fatal. |
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632 compute_optional_offset(_stackSize_offset, k, vmSymbols::stackSize_name(), vmSymbols::long_signature()); |
| 0 | 633 // The tid and thread_status fields are only present starting in 1.5, so don't go fatal. |
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634 compute_optional_offset(_tid_offset, k, vmSymbols::thread_id_name(), vmSymbols::long_signature()); |
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635 compute_optional_offset(_thread_status_offset, k, vmSymbols::thread_status_name(), vmSymbols::int_signature()); |
| 0 | 636 // The parkBlocker field is only present starting in 1.6, so don't go fatal. |
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637 compute_optional_offset(_park_blocker_offset, k, vmSymbols::park_blocker_name(), vmSymbols::object_signature()); |
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638 compute_optional_offset(_park_event_offset, k, vmSymbols::park_event_name(), |
| 0 | 639 vmSymbols::long_signature()); |
| 640 } | |
| 641 | |
| 642 | |
| 643 JavaThread* java_lang_Thread::thread(oop java_thread) { | |
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644 return (JavaThread*)java_thread->address_field(_eetop_offset); |
| 0 | 645 } |
| 646 | |
| 647 | |
| 648 void java_lang_Thread::set_thread(oop java_thread, JavaThread* thread) { | |
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649 java_thread->address_field_put(_eetop_offset, (address)thread); |
| 0 | 650 } |
| 651 | |
| 652 | |
| 653 typeArrayOop java_lang_Thread::name(oop java_thread) { | |
| 654 oop name = java_thread->obj_field(_name_offset); | |
| 655 assert(name == NULL || (name->is_typeArray() && typeArrayKlass::cast(name->klass())->element_type() == T_CHAR), "just checking"); | |
| 656 return typeArrayOop(name); | |
| 657 } | |
| 658 | |
| 659 | |
| 660 void java_lang_Thread::set_name(oop java_thread, typeArrayOop name) { | |
| 661 assert(java_thread->obj_field(_name_offset) == NULL, "name should be NULL"); | |
| 662 java_thread->obj_field_put(_name_offset, name); | |
| 663 } | |
| 664 | |
| 665 | |
| 666 ThreadPriority java_lang_Thread::priority(oop java_thread) { | |
| 667 return (ThreadPriority)java_thread->int_field(_priority_offset); | |
| 668 } | |
| 669 | |
| 670 | |
| 671 void java_lang_Thread::set_priority(oop java_thread, ThreadPriority priority) { | |
| 672 java_thread->int_field_put(_priority_offset, priority); | |
| 673 } | |
| 674 | |
| 675 | |
| 676 oop java_lang_Thread::threadGroup(oop java_thread) { | |
| 677 return java_thread->obj_field(_group_offset); | |
| 678 } | |
| 679 | |
| 680 | |
| 681 bool java_lang_Thread::is_stillborn(oop java_thread) { | |
| 682 return java_thread->bool_field(_stillborn_offset) != 0; | |
| 683 } | |
| 684 | |
| 685 | |
| 686 // We never have reason to turn the stillborn bit off | |
| 687 void java_lang_Thread::set_stillborn(oop java_thread) { | |
| 688 java_thread->bool_field_put(_stillborn_offset, true); | |
| 689 } | |
| 690 | |
| 691 | |
| 692 bool java_lang_Thread::is_alive(oop java_thread) { | |
| 693 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
| 694 return (thr != NULL); | |
| 695 } | |
| 696 | |
| 697 | |
| 698 bool java_lang_Thread::is_daemon(oop java_thread) { | |
| 699 return java_thread->bool_field(_daemon_offset) != 0; | |
| 700 } | |
| 701 | |
| 702 | |
| 703 void java_lang_Thread::set_daemon(oop java_thread) { | |
| 704 java_thread->bool_field_put(_daemon_offset, true); | |
| 705 } | |
| 706 | |
| 707 oop java_lang_Thread::context_class_loader(oop java_thread) { | |
| 708 return java_thread->obj_field(_contextClassLoader_offset); | |
| 709 } | |
| 710 | |
| 711 oop java_lang_Thread::inherited_access_control_context(oop java_thread) { | |
| 712 return java_thread->obj_field(_inheritedAccessControlContext_offset); | |
| 713 } | |
| 714 | |
| 715 | |
| 716 jlong java_lang_Thread::stackSize(oop java_thread) { | |
| 717 // The stackSize field is only present starting in 1.4 | |
| 718 if (_stackSize_offset > 0) { | |
| 719 assert(JDK_Version::is_gte_jdk14x_version(), "sanity check"); | |
| 720 return java_thread->long_field(_stackSize_offset); | |
| 721 } else { | |
| 722 return 0; | |
| 723 } | |
| 724 } | |
| 725 | |
| 726 // Write the thread status value to threadStatus field in java.lang.Thread java class. | |
| 727 void java_lang_Thread::set_thread_status(oop java_thread, | |
| 728 java_lang_Thread::ThreadStatus status) { | |
| 729 assert(JavaThread::current()->thread_state() == _thread_in_vm, "Java Thread is not running in vm"); | |
| 730 // The threadStatus is only present starting in 1.5 | |
| 731 if (_thread_status_offset > 0) { | |
| 732 java_thread->int_field_put(_thread_status_offset, status); | |
| 733 } | |
| 734 } | |
| 735 | |
| 736 // Read thread status value from threadStatus field in java.lang.Thread java class. | |
| 737 java_lang_Thread::ThreadStatus java_lang_Thread::get_thread_status(oop java_thread) { | |
| 738 assert(Thread::current()->is_VM_thread() || | |
| 739 JavaThread::current()->thread_state() == _thread_in_vm, | |
| 740 "Java Thread is not running in vm"); | |
| 741 // The threadStatus is only present starting in 1.5 | |
| 742 if (_thread_status_offset > 0) { | |
| 743 return (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
| 744 } else { | |
| 745 // All we can easily figure out is if it is alive, but that is | |
| 746 // enough info for a valid unknown status. | |
| 747 // These aren't restricted to valid set ThreadStatus values, so | |
| 748 // use JVMTI values and cast. | |
| 749 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
| 750 if (thr == NULL) { | |
| 751 // the thread hasn't run yet or is in the process of exiting | |
| 752 return NEW; | |
| 753 } | |
| 754 return (java_lang_Thread::ThreadStatus)JVMTI_THREAD_STATE_ALIVE; | |
| 755 } | |
| 756 } | |
| 757 | |
| 758 | |
| 759 jlong java_lang_Thread::thread_id(oop java_thread) { | |
| 760 // The thread ID field is only present starting in 1.5 | |
| 761 if (_tid_offset > 0) { | |
| 762 return java_thread->long_field(_tid_offset); | |
| 763 } else { | |
| 764 return 0; | |
| 765 } | |
| 766 } | |
| 767 | |
| 768 oop java_lang_Thread::park_blocker(oop java_thread) { | |
| 242 | 769 assert(JDK_Version::current().supports_thread_park_blocker() && |
| 770 _park_blocker_offset != 0, "Must support parkBlocker field"); | |
| 0 | 771 |
| 772 if (_park_blocker_offset > 0) { | |
| 773 return java_thread->obj_field(_park_blocker_offset); | |
| 774 } | |
| 775 | |
| 776 return NULL; | |
| 777 } | |
| 778 | |
| 779 jlong java_lang_Thread::park_event(oop java_thread) { | |
| 780 if (_park_event_offset > 0) { | |
| 781 return java_thread->long_field(_park_event_offset); | |
| 782 } | |
| 783 return 0; | |
| 784 } | |
| 785 | |
| 786 bool java_lang_Thread::set_park_event(oop java_thread, jlong ptr) { | |
| 787 if (_park_event_offset > 0) { | |
| 788 java_thread->long_field_put(_park_event_offset, ptr); | |
| 789 return true; | |
| 790 } | |
| 791 return false; | |
| 792 } | |
| 793 | |
| 794 | |
| 795 const char* java_lang_Thread::thread_status_name(oop java_thread) { | |
| 796 assert(JDK_Version::is_gte_jdk15x_version() && _thread_status_offset != 0, "Must have thread status"); | |
| 797 ThreadStatus status = (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
| 798 switch (status) { | |
| 799 case NEW : return "NEW"; | |
| 800 case RUNNABLE : return "RUNNABLE"; | |
| 801 case SLEEPING : return "TIMED_WAITING (sleeping)"; | |
| 802 case IN_OBJECT_WAIT : return "WAITING (on object monitor)"; | |
| 803 case IN_OBJECT_WAIT_TIMED : return "TIMED_WAITING (on object monitor)"; | |
| 804 case PARKED : return "WAITING (parking)"; | |
| 805 case PARKED_TIMED : return "TIMED_WAITING (parking)"; | |
| 806 case BLOCKED_ON_MONITOR_ENTER : return "BLOCKED (on object monitor)"; | |
| 807 case TERMINATED : return "TERMINATED"; | |
| 808 default : return "UNKNOWN"; | |
| 809 }; | |
| 810 } | |
| 811 int java_lang_ThreadGroup::_parent_offset = 0; | |
| 812 int java_lang_ThreadGroup::_name_offset = 0; | |
| 813 int java_lang_ThreadGroup::_threads_offset = 0; | |
| 814 int java_lang_ThreadGroup::_groups_offset = 0; | |
| 815 int java_lang_ThreadGroup::_maxPriority_offset = 0; | |
| 816 int java_lang_ThreadGroup::_destroyed_offset = 0; | |
| 817 int java_lang_ThreadGroup::_daemon_offset = 0; | |
| 818 int java_lang_ThreadGroup::_vmAllowSuspension_offset = 0; | |
| 819 int java_lang_ThreadGroup::_nthreads_offset = 0; | |
| 820 int java_lang_ThreadGroup::_ngroups_offset = 0; | |
| 821 | |
| 822 oop java_lang_ThreadGroup::parent(oop java_thread_group) { | |
| 823 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 824 return java_thread_group->obj_field(_parent_offset); | |
| 825 } | |
| 826 | |
| 827 // ("name as oop" accessor is not necessary) | |
| 828 | |
| 829 typeArrayOop java_lang_ThreadGroup::name(oop java_thread_group) { | |
| 830 oop name = java_thread_group->obj_field(_name_offset); | |
| 831 // ThreadGroup.name can be null | |
| 832 return name == NULL ? (typeArrayOop)NULL : java_lang_String::value(name); | |
| 833 } | |
| 834 | |
| 835 int java_lang_ThreadGroup::nthreads(oop java_thread_group) { | |
| 836 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 837 return java_thread_group->int_field(_nthreads_offset); | |
| 838 } | |
| 839 | |
| 840 objArrayOop java_lang_ThreadGroup::threads(oop java_thread_group) { | |
| 841 oop threads = java_thread_group->obj_field(_threads_offset); | |
| 842 assert(threads != NULL, "threadgroups should have threads"); | |
| 843 assert(threads->is_objArray(), "just checking"); // Todo: Add better type checking code | |
| 844 return objArrayOop(threads); | |
| 845 } | |
| 846 | |
| 847 int java_lang_ThreadGroup::ngroups(oop java_thread_group) { | |
| 848 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 849 return java_thread_group->int_field(_ngroups_offset); | |
| 850 } | |
| 851 | |
| 852 objArrayOop java_lang_ThreadGroup::groups(oop java_thread_group) { | |
| 853 oop groups = java_thread_group->obj_field(_groups_offset); | |
| 854 assert(groups == NULL || groups->is_objArray(), "just checking"); // Todo: Add better type checking code | |
| 855 return objArrayOop(groups); | |
| 856 } | |
| 857 | |
| 858 ThreadPriority java_lang_ThreadGroup::maxPriority(oop java_thread_group) { | |
| 859 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 860 return (ThreadPriority) java_thread_group->int_field(_maxPriority_offset); | |
| 861 } | |
| 862 | |
| 863 bool java_lang_ThreadGroup::is_destroyed(oop java_thread_group) { | |
| 864 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 865 return java_thread_group->bool_field(_destroyed_offset) != 0; | |
| 866 } | |
| 867 | |
| 868 bool java_lang_ThreadGroup::is_daemon(oop java_thread_group) { | |
| 869 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 870 return java_thread_group->bool_field(_daemon_offset) != 0; | |
| 871 } | |
| 872 | |
| 873 bool java_lang_ThreadGroup::is_vmAllowSuspension(oop java_thread_group) { | |
| 874 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 875 return java_thread_group->bool_field(_vmAllowSuspension_offset) != 0; | |
| 876 } | |
| 877 | |
| 878 void java_lang_ThreadGroup::compute_offsets() { | |
| 879 assert(_parent_offset == 0, "offsets should be initialized only once"); | |
| 880 | |
| 1142 | 881 klassOop k = SystemDictionary::ThreadGroup_klass(); |
| 0 | 882 |
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883 compute_offset(_parent_offset, k, vmSymbols::parent_name(), vmSymbols::threadgroup_signature()); |
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884 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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885 compute_offset(_threads_offset, k, vmSymbols::threads_name(), vmSymbols::thread_array_signature()); |
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886 compute_offset(_groups_offset, k, vmSymbols::groups_name(), vmSymbols::threadgroup_array_signature()); |
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887 compute_offset(_maxPriority_offset, k, vmSymbols::maxPriority_name(), vmSymbols::int_signature()); |
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888 compute_offset(_destroyed_offset, k, vmSymbols::destroyed_name(), vmSymbols::bool_signature()); |
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889 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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890 compute_offset(_vmAllowSuspension_offset, k, vmSymbols::vmAllowSuspension_name(), vmSymbols::bool_signature()); |
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891 compute_offset(_nthreads_offset, k, vmSymbols::nthreads_name(), vmSymbols::int_signature()); |
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892 compute_offset(_ngroups_offset, k, vmSymbols::ngroups_name(), vmSymbols::int_signature()); |
| 0 | 893 } |
| 894 | |
| 895 oop java_lang_Throwable::backtrace(oop throwable) { | |
| 896 return throwable->obj_field_acquire(backtrace_offset); | |
| 897 } | |
| 898 | |
| 899 | |
| 900 void java_lang_Throwable::set_backtrace(oop throwable, oop value) { | |
| 901 throwable->release_obj_field_put(backtrace_offset, value); | |
| 902 } | |
| 903 | |
| 904 | |
| 905 oop java_lang_Throwable::message(oop throwable) { | |
| 906 return throwable->obj_field(detailMessage_offset); | |
| 907 } | |
| 908 | |
| 909 | |
| 910 oop java_lang_Throwable::message(Handle throwable) { | |
| 911 return throwable->obj_field(detailMessage_offset); | |
| 912 } | |
| 913 | |
| 914 | |
| 915 void java_lang_Throwable::set_message(oop throwable, oop value) { | |
| 916 throwable->obj_field_put(detailMessage_offset, value); | |
| 917 } | |
| 918 | |
| 919 | |
| 920 void java_lang_Throwable::clear_stacktrace(oop throwable) { | |
| 921 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
| 922 throwable->obj_field_put(stackTrace_offset, NULL); | |
| 923 } | |
| 924 | |
| 925 | |
| 926 void java_lang_Throwable::print(oop throwable, outputStream* st) { | |
| 927 ResourceMark rm; | |
| 928 klassOop k = throwable->klass(); | |
| 929 assert(k != NULL, "just checking"); | |
| 930 st->print("%s", instanceKlass::cast(k)->external_name()); | |
| 931 oop msg = message(throwable); | |
| 932 if (msg != NULL) { | |
| 933 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
| 934 } | |
| 935 } | |
| 936 | |
| 937 | |
| 938 void java_lang_Throwable::print(Handle throwable, outputStream* st) { | |
| 939 ResourceMark rm; | |
| 940 klassOop k = throwable->klass(); | |
| 941 assert(k != NULL, "just checking"); | |
| 942 st->print("%s", instanceKlass::cast(k)->external_name()); | |
| 943 oop msg = message(throwable); | |
| 944 if (msg != NULL) { | |
| 945 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
| 946 } | |
| 947 } | |
| 948 | |
| 949 // Print stack trace element to resource allocated buffer | |
| 950 char* java_lang_Throwable::print_stack_element_to_buffer(methodOop method, int bci) { | |
| 951 // Get strings and string lengths | |
| 952 instanceKlass* klass = instanceKlass::cast(method->method_holder()); | |
| 953 const char* klass_name = klass->external_name(); | |
| 954 int buf_len = (int)strlen(klass_name); | |
| 955 char* source_file_name; | |
| 956 if (klass->source_file_name() == NULL) { | |
| 957 source_file_name = NULL; | |
| 958 } else { | |
| 959 source_file_name = klass->source_file_name()->as_C_string(); | |
| 960 buf_len += (int)strlen(source_file_name); | |
| 961 } | |
| 962 char* method_name = method->name()->as_C_string(); | |
| 963 buf_len += (int)strlen(method_name); | |
| 964 | |
| 965 // Allocate temporary buffer with extra space for formatting and line number | |
| 966 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64); | |
| 967 | |
| 968 // Print stack trace line in buffer | |
| 969 sprintf(buf, "\tat %s.%s", klass_name, method_name); | |
| 970 if (method->is_native()) { | |
| 971 strcat(buf, "(Native Method)"); | |
| 972 } else { | |
| 973 int line_number = method->line_number_from_bci(bci); | |
| 974 if (source_file_name != NULL && (line_number != -1)) { | |
| 975 // Sourcename and linenumber | |
| 976 sprintf(buf + (int)strlen(buf), "(%s:%d)", source_file_name, line_number); | |
| 977 } else if (source_file_name != NULL) { | |
| 978 // Just sourcename | |
| 979 sprintf(buf + (int)strlen(buf), "(%s)", source_file_name); | |
| 980 } else { | |
| 981 // Neither soucename and linenumber | |
| 982 sprintf(buf + (int)strlen(buf), "(Unknown Source)"); | |
| 983 } | |
| 984 nmethod* nm = method->code(); | |
| 985 if (WizardMode && nm != NULL) { | |
|
513
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986 sprintf(buf + (int)strlen(buf), "(nmethod " PTR_FORMAT ")", (intptr_t)nm); |
| 0 | 987 } |
| 988 } | |
| 989 | |
| 990 return buf; | |
| 991 } | |
| 992 | |
| 993 | |
| 994 void java_lang_Throwable::print_stack_element(Handle stream, methodOop method, int bci) { | |
| 995 ResourceMark rm; | |
| 996 char* buf = print_stack_element_to_buffer(method, bci); | |
| 997 print_to_stream(stream, buf); | |
| 998 } | |
| 999 | |
| 1000 void java_lang_Throwable::print_stack_element(outputStream *st, methodOop method, int bci) { | |
| 1001 ResourceMark rm; | |
| 1002 char* buf = print_stack_element_to_buffer(method, bci); | |
| 1003 st->print_cr("%s", buf); | |
| 1004 } | |
| 1005 | |
| 1006 void java_lang_Throwable::print_to_stream(Handle stream, const char* str) { | |
| 1007 if (stream.is_null()) { | |
| 1008 tty->print_cr("%s", str); | |
| 1009 } else { | |
| 1010 EXCEPTION_MARK; | |
| 1011 JavaValue result(T_VOID); | |
| 1012 Handle arg (THREAD, oopFactory::new_charArray(str, THREAD)); | |
| 1013 if (!HAS_PENDING_EXCEPTION) { | |
| 1014 JavaCalls::call_virtual(&result, | |
| 1015 stream, | |
| 1016 KlassHandle(THREAD, stream->klass()), | |
| 1017 vmSymbolHandles::println_name(), | |
| 1018 vmSymbolHandles::char_array_void_signature(), | |
| 1019 arg, | |
| 1020 THREAD); | |
| 1021 } | |
| 1022 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
| 1023 if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION; | |
| 1024 } | |
| 1025 | |
| 1026 } | |
| 1027 | |
| 1028 | |
| 1029 const char* java_lang_Throwable::no_stack_trace_message() { | |
| 1030 return "\t<<no stack trace available>>"; | |
| 1031 } | |
| 1032 | |
| 1033 | |
| 1034 // Currently used only for exceptions occurring during startup | |
| 1035 void java_lang_Throwable::print_stack_trace(oop throwable, outputStream* st) { | |
| 1036 Thread *THREAD = Thread::current(); | |
| 1037 Handle h_throwable(THREAD, throwable); | |
| 1038 while (h_throwable.not_null()) { | |
| 1039 objArrayHandle result (THREAD, objArrayOop(backtrace(h_throwable()))); | |
| 1040 if (result.is_null()) { | |
| 1041 st->print_cr(no_stack_trace_message()); | |
| 1042 return; | |
| 1043 } | |
| 1044 | |
| 1045 while (result.not_null()) { | |
| 1046 objArrayHandle methods (THREAD, | |
| 1047 objArrayOop(result->obj_at(trace_methods_offset))); | |
| 1048 typeArrayHandle bcis (THREAD, | |
| 1049 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
| 1050 | |
| 1051 if (methods.is_null() || bcis.is_null()) { | |
| 1052 st->print_cr(no_stack_trace_message()); | |
| 1053 return; | |
| 1054 } | |
| 1055 | |
| 1056 int length = methods()->length(); | |
| 1057 for (int index = 0; index < length; index++) { | |
| 1058 methodOop method = methodOop(methods()->obj_at(index)); | |
| 1059 if (method == NULL) goto handle_cause; | |
| 1060 int bci = bcis->ushort_at(index); | |
| 1061 print_stack_element(st, method, bci); | |
| 1062 } | |
| 1063 result = objArrayHandle(THREAD, objArrayOop(result->obj_at(trace_next_offset))); | |
| 1064 } | |
| 1065 handle_cause: | |
| 1066 { | |
| 1067 EXCEPTION_MARK; | |
| 1068 JavaValue result(T_OBJECT); | |
| 1069 JavaCalls::call_virtual(&result, | |
| 1070 h_throwable, | |
| 1071 KlassHandle(THREAD, h_throwable->klass()), | |
| 1072 vmSymbolHandles::getCause_name(), | |
| 1073 vmSymbolHandles::void_throwable_signature(), | |
| 1074 THREAD); | |
| 1075 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
| 1076 if (HAS_PENDING_EXCEPTION) { | |
| 1077 CLEAR_PENDING_EXCEPTION; | |
| 1078 h_throwable = Handle(); | |
| 1079 } else { | |
| 1080 h_throwable = Handle(THREAD, (oop) result.get_jobject()); | |
| 1081 if (h_throwable.not_null()) { | |
| 1082 st->print("Caused by: "); | |
| 1083 print(h_throwable, st); | |
| 1084 st->cr(); | |
| 1085 } | |
| 1086 } | |
| 1087 } | |
| 1088 } | |
| 1089 } | |
| 1090 | |
| 1091 | |
| 1092 void java_lang_Throwable::print_stack_trace(oop throwable, oop print_stream) { | |
| 1093 // Note: this is no longer used in Merlin, but we support it for compatibility. | |
| 1094 Thread *thread = Thread::current(); | |
| 1095 Handle stream(thread, print_stream); | |
| 1096 objArrayHandle result (thread, objArrayOop(backtrace(throwable))); | |
| 1097 if (result.is_null()) { | |
| 1098 print_to_stream(stream, no_stack_trace_message()); | |
| 1099 return; | |
| 1100 } | |
| 1101 | |
| 1102 while (result.not_null()) { | |
| 1103 objArrayHandle methods (thread, | |
| 1104 objArrayOop(result->obj_at(trace_methods_offset))); | |
| 1105 typeArrayHandle bcis (thread, | |
| 1106 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
| 1107 | |
| 1108 if (methods.is_null() || bcis.is_null()) { | |
| 1109 print_to_stream(stream, no_stack_trace_message()); | |
| 1110 return; | |
| 1111 } | |
| 1112 | |
| 1113 int length = methods()->length(); | |
| 1114 for (int index = 0; index < length; index++) { | |
| 1115 methodOop method = methodOop(methods()->obj_at(index)); | |
| 1116 if (method == NULL) return; | |
| 1117 int bci = bcis->ushort_at(index); | |
| 1118 print_stack_element(stream, method, bci); | |
| 1119 } | |
| 1120 result = objArrayHandle(thread, objArrayOop(result->obj_at(trace_next_offset))); | |
| 1121 } | |
| 1122 } | |
| 1123 | |
| 1124 // This class provides a simple wrapper over the internal structure of | |
| 1125 // exception backtrace to insulate users of the backtrace from needing | |
| 1126 // to know what it looks like. | |
| 1127 class BacktraceBuilder: public StackObj { | |
| 1128 private: | |
| 1129 Handle _backtrace; | |
| 1130 objArrayOop _head; | |
| 1131 objArrayOop _methods; | |
| 1132 typeArrayOop _bcis; | |
| 1133 int _index; | |
| 1134 bool _dirty; | |
| 1135 No_Safepoint_Verifier _nsv; | |
| 1136 | |
| 1137 public: | |
| 1138 | |
| 1139 enum { | |
| 1140 trace_methods_offset = java_lang_Throwable::trace_methods_offset, | |
| 1141 trace_bcis_offset = java_lang_Throwable::trace_bcis_offset, | |
| 1142 trace_next_offset = java_lang_Throwable::trace_next_offset, | |
| 1143 trace_size = java_lang_Throwable::trace_size, | |
| 1144 trace_chunk_size = java_lang_Throwable::trace_chunk_size | |
| 1145 }; | |
| 1146 | |
| 1147 // constructor for new backtrace | |
|
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1148 BacktraceBuilder(TRAPS): _methods(NULL), _bcis(NULL), _head(NULL), _dirty(false) { |
| 0 | 1149 expand(CHECK); |
| 1150 _backtrace = _head; | |
| 1151 _index = 0; | |
| 1152 } | |
| 1153 | |
| 1154 void flush() { | |
|
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1155 // The following appears to have been an optimization to save from |
|
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1156 // doing a barrier for each individual store into the _methods array, |
|
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1157 // but rather to do it for the entire array after the series of writes. |
|
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1158 // That optimization seems to have been lost when compressed oops was |
|
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1159 // implemented. However, the extra card-marks below was left in place, |
|
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1160 // but is now redundant because the individual stores into the |
|
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1161 // _methods array already execute the barrier code. CR 6918185 has |
|
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1162 // been filed so the original code may be restored by deferring the |
|
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1163 // barriers until after the entire sequence of stores, thus re-enabling |
|
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1164 // the intent of the original optimization. In the meantime the redundant |
|
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|
1165 // card mark below is now disabled. |
| 0 | 1166 if (_dirty && _methods != NULL) { |
|
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|
1167 #if 0 |
| 0 | 1168 BarrierSet* bs = Universe::heap()->barrier_set(); |
| 1169 assert(bs->has_write_ref_array_opt(), "Barrier set must have ref array opt"); | |
|
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1170 bs->write_ref_array((HeapWord*)_methods->base(), _methods->length()); |
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1171 #endif |
| 0 | 1172 _dirty = false; |
| 1173 } | |
| 1174 } | |
| 1175 | |
| 1176 void expand(TRAPS) { | |
| 1177 flush(); | |
| 1178 | |
| 1179 objArrayHandle old_head(THREAD, _head); | |
| 1180 Pause_No_Safepoint_Verifier pnsv(&_nsv); | |
| 1181 | |
| 1182 objArrayOop head = oopFactory::new_objectArray(trace_size, CHECK); | |
| 1183 objArrayHandle new_head(THREAD, head); | |
| 1184 | |
| 1185 objArrayOop methods = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
| 1186 objArrayHandle new_methods(THREAD, methods); | |
| 1187 | |
| 1188 typeArrayOop bcis = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
| 1189 typeArrayHandle new_bcis(THREAD, bcis); | |
| 1190 | |
| 1191 if (!old_head.is_null()) { | |
| 1192 old_head->obj_at_put(trace_next_offset, new_head()); | |
| 1193 } | |
| 1194 new_head->obj_at_put(trace_methods_offset, new_methods()); | |
| 1195 new_head->obj_at_put(trace_bcis_offset, new_bcis()); | |
| 1196 | |
| 1197 _head = new_head(); | |
| 1198 _methods = new_methods(); | |
| 1199 _bcis = new_bcis(); | |
| 1200 _index = 0; | |
| 1201 } | |
| 1202 | |
| 1203 oop backtrace() { | |
| 1204 flush(); | |
| 1205 return _backtrace(); | |
| 1206 } | |
| 1207 | |
| 1208 inline void push(methodOop method, short bci, TRAPS) { | |
| 1209 if (_index >= trace_chunk_size) { | |
| 1210 methodHandle mhandle(THREAD, method); | |
| 1211 expand(CHECK); | |
| 1212 method = mhandle(); | |
| 1213 } | |
| 1214 | |
|
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|
1215 _methods->obj_at_put(_index, method); |
| 0 | 1216 _bcis->ushort_at_put(_index, bci); |
| 1217 _index++; | |
| 1218 _dirty = true; | |
| 1219 } | |
| 1220 | |
| 1221 methodOop current_method() { | |
| 1222 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
| 1223 return methodOop(_methods->obj_at(_index)); | |
| 1224 } | |
| 1225 | |
| 1226 jushort current_bci() { | |
| 1227 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
| 1228 return _bcis->ushort_at(_index); | |
| 1229 } | |
| 1230 }; | |
| 1231 | |
| 1232 | |
| 1233 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, TRAPS) { | |
| 1234 if (!StackTraceInThrowable) return; | |
| 1235 ResourceMark rm(THREAD); | |
| 1236 | |
| 1237 // Start out by clearing the backtrace for this object, in case the VM | |
| 1238 // runs out of memory while allocating the stack trace | |
| 1239 set_backtrace(throwable(), NULL); | |
| 1240 if (JDK_Version::is_gte_jdk14x_version()) { | |
| 1241 // New since 1.4, clear lazily constructed Java level stacktrace if | |
| 1242 // refilling occurs | |
| 1243 clear_stacktrace(throwable()); | |
| 1244 } | |
| 1245 | |
| 1246 int max_depth = MaxJavaStackTraceDepth; | |
| 1247 JavaThread* thread = (JavaThread*)THREAD; | |
| 1248 BacktraceBuilder bt(CHECK); | |
| 1249 | |
| 1250 // Instead of using vframe directly, this version of fill_in_stack_trace | |
| 1251 // basically handles everything by hand. This significantly improved the | |
| 1252 // speed of this method call up to 28.5% on Solaris sparc. 27.1% on Windows. | |
| 1253 // See bug 6333838 for more details. | |
| 1254 // The "ASSERT" here is to verify this method generates the exactly same stack | |
| 1255 // trace as utilizing vframe. | |
| 1256 #ifdef ASSERT | |
| 1257 vframeStream st(thread); | |
| 1258 methodHandle st_method(THREAD, st.method()); | |
| 1259 #endif | |
| 1260 int total_count = 0; | |
| 1261 RegisterMap map(thread, false); | |
| 1262 int decode_offset = 0; | |
| 1263 nmethod* nm = NULL; | |
| 1264 bool skip_fillInStackTrace_check = false; | |
| 1265 bool skip_throwableInit_check = false; | |
| 1266 | |
| 1267 for (frame fr = thread->last_frame(); max_depth != total_count;) { | |
| 1268 methodOop method = NULL; | |
| 1269 int bci = 0; | |
| 1270 | |
| 1271 // Compiled java method case. | |
| 1272 if (decode_offset != 0) { | |
| 1273 DebugInfoReadStream stream(nm, decode_offset); | |
| 1274 decode_offset = stream.read_int(); | |
| 1275 method = (methodOop)nm->oop_at(stream.read_int()); | |
|
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1276 bci = stream.read_bci(); |
| 0 | 1277 } else { |
| 1278 if (fr.is_first_frame()) break; | |
| 1279 address pc = fr.pc(); | |
| 1280 if (fr.is_interpreted_frame()) { | |
| 1281 intptr_t bcx = fr.interpreter_frame_bcx(); | |
| 1282 method = fr.interpreter_frame_method(); | |
| 1283 bci = fr.is_bci(bcx) ? bcx : method->bci_from((address)bcx); | |
| 1284 fr = fr.sender(&map); | |
| 1285 } else { | |
| 1286 CodeBlob* cb = fr.cb(); | |
| 1287 // HMMM QQQ might be nice to have frame return nm as NULL if cb is non-NULL | |
| 1288 // but non nmethod | |
| 1289 fr = fr.sender(&map); | |
| 1290 if (cb == NULL || !cb->is_nmethod()) { | |
| 1291 continue; | |
| 1292 } | |
| 1293 nm = (nmethod*)cb; | |
| 1294 if (nm->method()->is_native()) { | |
| 1295 method = nm->method(); | |
| 1296 bci = 0; | |
| 1297 } else { | |
| 1298 PcDesc* pd = nm->pc_desc_at(pc); | |
| 1299 decode_offset = pd->scope_decode_offset(); | |
| 1300 // if decode_offset is not equal to 0, it will execute the | |
| 1301 // "compiled java method case" at the beginning of the loop. | |
| 1302 continue; | |
| 1303 } | |
| 1304 } | |
| 1305 } | |
| 1306 #ifdef ASSERT | |
| 1307 assert(st_method() == method && st.bci() == bci, | |
| 1308 "Wrong stack trace"); | |
| 1309 st.next(); | |
| 1310 // vframeStream::method isn't GC-safe so store off a copy | |
| 1311 // of the methodOop in case we GC. | |
| 1312 if (!st.at_end()) { | |
| 1313 st_method = st.method(); | |
| 1314 } | |
| 1315 #endif | |
| 1316 if (!skip_fillInStackTrace_check) { | |
| 1317 // check "fillInStackTrace" only once, so we negate the flag | |
| 1318 // after the first time check. | |
| 1319 skip_fillInStackTrace_check = true; | |
| 1320 if (method->name() == vmSymbols::fillInStackTrace_name()) { | |
| 1321 continue; | |
| 1322 } | |
| 1323 } | |
| 1324 // skip <init> methods of the exceptions klass. If there is <init> methods | |
| 1325 // that belongs to a superclass of the exception we are going to skipping | |
| 1326 // them in stack trace. This is simlar to classic VM. | |
| 1327 if (!skip_throwableInit_check) { | |
| 1328 if (method->name() == vmSymbols::object_initializer_name() && | |
| 1329 throwable->is_a(method->method_holder())) { | |
| 1330 continue; | |
| 1331 } else { | |
| 1332 // if no "Throwable.init()" method found, we stop checking it next time. | |
| 1333 skip_throwableInit_check = true; | |
| 1334 } | |
| 1335 } | |
| 1336 bt.push(method, bci, CHECK); | |
| 1337 total_count++; | |
| 1338 } | |
| 1339 | |
| 1340 // Put completed stack trace into throwable object | |
| 1341 set_backtrace(throwable(), bt.backtrace()); | |
| 1342 } | |
| 1343 | |
| 1344 void java_lang_Throwable::fill_in_stack_trace(Handle throwable) { | |
| 1345 // No-op if stack trace is disabled | |
| 1346 if (!StackTraceInThrowable) { | |
| 1347 return; | |
| 1348 } | |
| 1349 | |
| 1350 // Disable stack traces for some preallocated out of memory errors | |
| 1351 if (!Universe::should_fill_in_stack_trace(throwable)) { | |
| 1352 return; | |
| 1353 } | |
| 1354 | |
| 1355 PRESERVE_EXCEPTION_MARK; | |
| 1356 | |
| 1357 JavaThread* thread = JavaThread::active(); | |
| 1358 fill_in_stack_trace(throwable, thread); | |
| 1359 // ignore exceptions thrown during stack trace filling | |
| 1360 CLEAR_PENDING_EXCEPTION; | |
| 1361 } | |
| 1362 | |
| 1363 void java_lang_Throwable::allocate_backtrace(Handle throwable, TRAPS) { | |
| 1364 // Allocate stack trace - backtrace is created but not filled in | |
| 1365 | |
| 1366 // No-op if stack trace is disabled | |
| 1367 if (!StackTraceInThrowable) return; | |
| 1368 | |
| 1369 objArrayOop h_oop = oopFactory::new_objectArray(trace_size, CHECK); | |
| 1370 objArrayHandle backtrace (THREAD, h_oop); | |
| 1371 objArrayOop m_oop = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
| 1372 objArrayHandle methods (THREAD, m_oop); | |
| 1373 typeArrayOop b = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
| 1374 typeArrayHandle bcis(THREAD, b); | |
| 1375 | |
| 1376 // backtrace has space for one chunk (next is NULL) | |
| 1377 backtrace->obj_at_put(trace_methods_offset, methods()); | |
| 1378 backtrace->obj_at_put(trace_bcis_offset, bcis()); | |
| 1379 set_backtrace(throwable(), backtrace()); | |
| 1380 } | |
| 1381 | |
| 1382 | |
| 1383 void java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(Handle throwable) { | |
| 1384 // Fill in stack trace into preallocated backtrace (no GC) | |
| 1385 | |
| 1386 // No-op if stack trace is disabled | |
| 1387 if (!StackTraceInThrowable) return; | |
| 1388 | |
| 1142 | 1389 assert(throwable->is_a(SystemDictionary::Throwable_klass()), "sanity check"); |
| 0 | 1390 |
| 1391 oop backtrace = java_lang_Throwable::backtrace(throwable()); | |
| 1392 assert(backtrace != NULL, "backtrace not preallocated"); | |
| 1393 | |
| 1394 oop m = objArrayOop(backtrace)->obj_at(trace_methods_offset); | |
| 1395 objArrayOop methods = objArrayOop(m); | |
| 1396 assert(methods != NULL && methods->length() > 0, "method array not preallocated"); | |
| 1397 | |
| 1398 oop b = objArrayOop(backtrace)->obj_at(trace_bcis_offset); | |
| 1399 typeArrayOop bcis = typeArrayOop(b); | |
| 1400 assert(bcis != NULL, "bci array not preallocated"); | |
| 1401 | |
| 1402 assert(methods->length() == bcis->length(), "method and bci arrays should match"); | |
| 1403 | |
| 1404 JavaThread* thread = JavaThread::current(); | |
| 1405 ResourceMark rm(thread); | |
| 1406 vframeStream st(thread); | |
| 1407 | |
| 1408 // Unlike fill_in_stack_trace we do not skip fillInStackTrace or throwable init | |
| 1409 // methods as preallocated errors aren't created by "java" code. | |
| 1410 | |
| 1411 // fill in as much stack trace as possible | |
| 1412 int max_chunks = MIN2(methods->length(), (int)MaxJavaStackTraceDepth); | |
| 1413 int chunk_count = 0; | |
| 1414 | |
| 1415 for (;!st.at_end(); st.next()) { | |
| 1416 // add element | |
| 1417 bcis->ushort_at_put(chunk_count, st.bci()); | |
| 1418 methods->obj_at_put(chunk_count, st.method()); | |
| 1419 | |
| 1420 chunk_count++; | |
| 1421 | |
| 1422 // Bail-out for deep stacks | |
| 1423 if (chunk_count >= max_chunks) break; | |
| 1424 } | |
| 1425 } | |
| 1426 | |
| 1427 | |
| 1428 int java_lang_Throwable::get_stack_trace_depth(oop throwable, TRAPS) { | |
| 1429 if (throwable == NULL) { | |
| 1430 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
| 1431 } | |
| 1432 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
| 1433 int depth = 0; | |
| 1434 if (chunk != NULL) { | |
| 1435 // Iterate over chunks and count full ones | |
| 1436 while (true) { | |
| 1437 objArrayOop next = objArrayOop(chunk->obj_at(trace_next_offset)); | |
| 1438 if (next == NULL) break; | |
| 1439 depth += trace_chunk_size; | |
| 1440 chunk = next; | |
| 1441 } | |
| 1442 assert(chunk != NULL && chunk->obj_at(trace_next_offset) == NULL, "sanity check"); | |
| 1443 // Count element in remaining partial chunk | |
| 1444 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
| 1445 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
| 1446 assert(methods != NULL && bcis != NULL, "sanity check"); | |
| 1447 for (int i = 0; i < methods->length(); i++) { | |
| 1448 if (methods->obj_at(i) == NULL) break; | |
| 1449 depth++; | |
| 1450 } | |
| 1451 } | |
| 1452 return depth; | |
| 1453 } | |
| 1454 | |
| 1455 | |
| 1456 oop java_lang_Throwable::get_stack_trace_element(oop throwable, int index, TRAPS) { | |
| 1457 if (throwable == NULL) { | |
| 1458 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
| 1459 } | |
| 1460 if (index < 0) { | |
| 1461 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1462 } | |
| 1463 // Compute how many chunks to skip and index into actual chunk | |
| 1464 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
| 1465 int skip_chunks = index / trace_chunk_size; | |
| 1466 int chunk_index = index % trace_chunk_size; | |
| 1467 while (chunk != NULL && skip_chunks > 0) { | |
| 1468 chunk = objArrayOop(chunk->obj_at(trace_next_offset)); | |
| 1469 skip_chunks--; | |
| 1470 } | |
| 1471 if (chunk == NULL) { | |
| 1472 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1473 } | |
| 1474 // Get method,bci from chunk | |
| 1475 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
| 1476 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
| 1477 assert(methods != NULL && bcis != NULL, "sanity check"); | |
| 1478 methodHandle method(THREAD, methodOop(methods->obj_at(chunk_index))); | |
| 1479 int bci = bcis->ushort_at(chunk_index); | |
| 1480 // Chunk can be partial full | |
| 1481 if (method.is_null()) { | |
| 1482 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1483 } | |
| 1484 | |
| 1485 oop element = java_lang_StackTraceElement::create(method, bci, CHECK_0); | |
| 1486 return element; | |
| 1487 } | |
| 1488 | |
| 1489 oop java_lang_StackTraceElement::create(methodHandle method, int bci, TRAPS) { | |
| 1490 // SystemDictionary::stackTraceElement_klass() will be null for pre-1.4 JDKs | |
| 1491 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
| 1492 | |
| 1493 // Allocate java.lang.StackTraceElement instance | |
| 1142 | 1494 klassOop k = SystemDictionary::StackTraceElement_klass(); |
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1495 assert(k != NULL, "must be loaded in 1.4+"); |
| 0 | 1496 instanceKlassHandle ik (THREAD, k); |
| 1497 if (ik->should_be_initialized()) { | |
| 1498 ik->initialize(CHECK_0); | |
| 1499 } | |
| 1500 | |
| 1501 Handle element = ik->allocate_instance_handle(CHECK_0); | |
| 1502 // Fill in class name | |
| 1503 ResourceMark rm(THREAD); | |
| 1504 const char* str = instanceKlass::cast(method->method_holder())->external_name(); | |
| 1505 oop classname = StringTable::intern((char*) str, CHECK_0); | |
| 1506 java_lang_StackTraceElement::set_declaringClass(element(), classname); | |
| 1507 // Fill in method name | |
| 1508 oop methodname = StringTable::intern(method->name(), CHECK_0); | |
| 1509 java_lang_StackTraceElement::set_methodName(element(), methodname); | |
| 1510 // Fill in source file name | |
| 1511 symbolOop source = instanceKlass::cast(method->method_holder())->source_file_name(); | |
| 1512 oop filename = StringTable::intern(source, CHECK_0); | |
| 1513 java_lang_StackTraceElement::set_fileName(element(), filename); | |
| 1514 // File in source line number | |
| 1515 int line_number; | |
| 1516 if (method->is_native()) { | |
| 1517 // Negative value different from -1 below, enabling Java code in | |
| 1518 // class java.lang.StackTraceElement to distinguish "native" from | |
| 1519 // "no LineNumberTable". | |
| 1520 line_number = -2; | |
| 1521 } else { | |
| 1522 // Returns -1 if no LineNumberTable, and otherwise actual line number | |
| 1523 line_number = method->line_number_from_bci(bci); | |
| 1524 } | |
| 1525 java_lang_StackTraceElement::set_lineNumber(element(), line_number); | |
| 1526 | |
| 1527 return element(); | |
| 1528 } | |
| 1529 | |
| 1530 | |
| 1531 void java_lang_reflect_AccessibleObject::compute_offsets() { | |
| 1142 | 1532 klassOop k = SystemDictionary::reflect_AccessibleObject_klass(); |
|
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1533 compute_offset(override_offset, k, vmSymbols::override_name(), vmSymbols::bool_signature()); |
| 0 | 1534 } |
| 1535 | |
| 1536 jboolean java_lang_reflect_AccessibleObject::override(oop reflect) { | |
| 1537 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1538 return (jboolean) reflect->bool_field(override_offset); | |
| 1539 } | |
| 1540 | |
| 1541 void java_lang_reflect_AccessibleObject::set_override(oop reflect, jboolean value) { | |
| 1542 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1543 reflect->bool_field_put(override_offset, (int) value); | |
| 1544 } | |
| 1545 | |
| 1546 void java_lang_reflect_Method::compute_offsets() { | |
| 1142 | 1547 klassOop k = SystemDictionary::reflect_Method_klass(); |
|
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1548 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1549 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1550 compute_offset(returnType_offset, k, vmSymbols::returnType_name(), vmSymbols::class_signature()); |
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1551 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1552 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1553 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1554 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 1555 // The generic signature and annotations fields are only present in 1.5 |
| 1556 signature_offset = -1; | |
| 1557 annotations_offset = -1; | |
| 1558 parameter_annotations_offset = -1; | |
| 1559 annotation_default_offset = -1; | |
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1560 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1561 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1562 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
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1563 compute_optional_offset(annotation_default_offset, k, vmSymbols::annotation_default_name(), vmSymbols::byte_array_signature()); |
| 0 | 1564 } |
| 1565 | |
| 1566 Handle java_lang_reflect_Method::create(TRAPS) { | |
| 1567 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1142 | 1568 klassOop klass = SystemDictionary::reflect_Method_klass(); |
| 0 | 1569 // This class is eagerly initialized during VM initialization, since we keep a refence |
| 1570 // to one of the methods | |
| 1571 assert(instanceKlass::cast(klass)->is_initialized(), "must be initialized"); | |
| 1572 return instanceKlass::cast(klass)->allocate_instance_handle(CHECK_NH); | |
| 1573 } | |
| 1574 | |
| 1575 oop java_lang_reflect_Method::clazz(oop reflect) { | |
| 1576 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1577 return reflect->obj_field(clazz_offset); | |
| 1578 } | |
| 1579 | |
| 1580 void java_lang_reflect_Method::set_clazz(oop reflect, oop value) { | |
| 1581 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1582 reflect->obj_field_put(clazz_offset, value); | |
| 1583 } | |
| 1584 | |
| 1585 int java_lang_reflect_Method::slot(oop reflect) { | |
| 1586 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1587 return reflect->int_field(slot_offset); | |
| 1588 } | |
| 1589 | |
| 1590 void java_lang_reflect_Method::set_slot(oop reflect, int value) { | |
| 1591 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1592 reflect->int_field_put(slot_offset, value); | |
| 1593 } | |
| 1594 | |
| 1595 oop java_lang_reflect_Method::name(oop method) { | |
| 1596 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1597 return method->obj_field(name_offset); | |
| 1598 } | |
| 1599 | |
| 1600 void java_lang_reflect_Method::set_name(oop method, oop value) { | |
| 1601 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1602 method->obj_field_put(name_offset, value); | |
| 1603 } | |
| 1604 | |
| 1605 oop java_lang_reflect_Method::return_type(oop method) { | |
| 1606 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1607 return method->obj_field(returnType_offset); | |
| 1608 } | |
| 1609 | |
| 1610 void java_lang_reflect_Method::set_return_type(oop method, oop value) { | |
| 1611 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1612 method->obj_field_put(returnType_offset, value); | |
| 1613 } | |
| 1614 | |
| 1615 oop java_lang_reflect_Method::parameter_types(oop method) { | |
| 1616 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1617 return method->obj_field(parameterTypes_offset); | |
| 1618 } | |
| 1619 | |
| 1620 void java_lang_reflect_Method::set_parameter_types(oop method, oop value) { | |
| 1621 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1622 method->obj_field_put(parameterTypes_offset, value); | |
| 1623 } | |
| 1624 | |
| 1625 oop java_lang_reflect_Method::exception_types(oop method) { | |
| 1626 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1627 return method->obj_field(exceptionTypes_offset); | |
| 1628 } | |
| 1629 | |
| 1630 void java_lang_reflect_Method::set_exception_types(oop method, oop value) { | |
| 1631 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1632 method->obj_field_put(exceptionTypes_offset, value); | |
| 1633 } | |
| 1634 | |
| 1635 int java_lang_reflect_Method::modifiers(oop method) { | |
| 1636 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1637 return method->int_field(modifiers_offset); | |
| 1638 } | |
| 1639 | |
| 1640 void java_lang_reflect_Method::set_modifiers(oop method, int value) { | |
| 1641 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1642 method->int_field_put(modifiers_offset, value); | |
| 1643 } | |
| 1644 | |
| 1645 bool java_lang_reflect_Method::has_signature_field() { | |
| 1646 return (signature_offset >= 0); | |
| 1647 } | |
| 1648 | |
| 1649 oop java_lang_reflect_Method::signature(oop method) { | |
| 1650 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1651 assert(has_signature_field(), "signature field must be present"); | |
| 1652 return method->obj_field(signature_offset); | |
| 1653 } | |
| 1654 | |
| 1655 void java_lang_reflect_Method::set_signature(oop method, oop value) { | |
| 1656 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1657 assert(has_signature_field(), "signature field must be present"); | |
| 1658 method->obj_field_put(signature_offset, value); | |
| 1659 } | |
| 1660 | |
| 1661 bool java_lang_reflect_Method::has_annotations_field() { | |
| 1662 return (annotations_offset >= 0); | |
| 1663 } | |
| 1664 | |
| 1665 oop java_lang_reflect_Method::annotations(oop method) { | |
| 1666 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1667 assert(has_annotations_field(), "annotations field must be present"); | |
| 1668 return method->obj_field(annotations_offset); | |
| 1669 } | |
| 1670 | |
| 1671 void java_lang_reflect_Method::set_annotations(oop method, oop value) { | |
| 1672 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1673 assert(has_annotations_field(), "annotations field must be present"); | |
| 1674 method->obj_field_put(annotations_offset, value); | |
| 1675 } | |
| 1676 | |
| 1677 bool java_lang_reflect_Method::has_parameter_annotations_field() { | |
| 1678 return (parameter_annotations_offset >= 0); | |
| 1679 } | |
| 1680 | |
| 1681 oop java_lang_reflect_Method::parameter_annotations(oop method) { | |
| 1682 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1683 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1684 return method->obj_field(parameter_annotations_offset); | |
| 1685 } | |
| 1686 | |
| 1687 void java_lang_reflect_Method::set_parameter_annotations(oop method, oop value) { | |
| 1688 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1689 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1690 method->obj_field_put(parameter_annotations_offset, value); | |
| 1691 } | |
| 1692 | |
| 1693 bool java_lang_reflect_Method::has_annotation_default_field() { | |
| 1694 return (annotation_default_offset >= 0); | |
| 1695 } | |
| 1696 | |
| 1697 oop java_lang_reflect_Method::annotation_default(oop method) { | |
| 1698 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1699 assert(has_annotation_default_field(), "annotation default field must be present"); | |
| 1700 return method->obj_field(annotation_default_offset); | |
| 1701 } | |
| 1702 | |
| 1703 void java_lang_reflect_Method::set_annotation_default(oop method, oop value) { | |
| 1704 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1705 assert(has_annotation_default_field(), "annotation default field must be present"); | |
| 1706 method->obj_field_put(annotation_default_offset, value); | |
| 1707 } | |
| 1708 | |
| 1709 void java_lang_reflect_Constructor::compute_offsets() { | |
| 1142 | 1710 klassOop k = SystemDictionary::reflect_Constructor_klass(); |
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1711 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1712 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1713 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1714 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1715 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 1716 // The generic signature and annotations fields are only present in 1.5 |
| 1717 signature_offset = -1; | |
| 1718 annotations_offset = -1; | |
| 1719 parameter_annotations_offset = -1; | |
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1720 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1721 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1722 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
| 0 | 1723 } |
| 1724 | |
| 1725 Handle java_lang_reflect_Constructor::create(TRAPS) { | |
| 1726 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1727 symbolHandle name = vmSymbolHandles::java_lang_reflect_Constructor(); | |
| 1728 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); | |
| 1729 instanceKlassHandle klass (THREAD, k); | |
| 1730 // Ensure it is initialized | |
| 1731 klass->initialize(CHECK_NH); | |
| 1732 return klass->allocate_instance_handle(CHECK_NH); | |
| 1733 } | |
| 1734 | |
| 1735 oop java_lang_reflect_Constructor::clazz(oop reflect) { | |
| 1736 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1737 return reflect->obj_field(clazz_offset); | |
| 1738 } | |
| 1739 | |
| 1740 void java_lang_reflect_Constructor::set_clazz(oop reflect, oop value) { | |
| 1741 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1742 reflect->obj_field_put(clazz_offset, value); | |
| 1743 } | |
| 1744 | |
| 1745 oop java_lang_reflect_Constructor::parameter_types(oop constructor) { | |
| 1746 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1747 return constructor->obj_field(parameterTypes_offset); | |
| 1748 } | |
| 1749 | |
| 1750 void java_lang_reflect_Constructor::set_parameter_types(oop constructor, oop value) { | |
| 1751 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1752 constructor->obj_field_put(parameterTypes_offset, value); | |
| 1753 } | |
| 1754 | |
| 1755 oop java_lang_reflect_Constructor::exception_types(oop constructor) { | |
| 1756 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1757 return constructor->obj_field(exceptionTypes_offset); | |
| 1758 } | |
| 1759 | |
| 1760 void java_lang_reflect_Constructor::set_exception_types(oop constructor, oop value) { | |
| 1761 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1762 constructor->obj_field_put(exceptionTypes_offset, value); | |
| 1763 } | |
| 1764 | |
| 1765 int java_lang_reflect_Constructor::slot(oop reflect) { | |
| 1766 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1767 return reflect->int_field(slot_offset); | |
| 1768 } | |
| 1769 | |
| 1770 void java_lang_reflect_Constructor::set_slot(oop reflect, int value) { | |
| 1771 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1772 reflect->int_field_put(slot_offset, value); | |
| 1773 } | |
| 1774 | |
| 1775 int java_lang_reflect_Constructor::modifiers(oop constructor) { | |
| 1776 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1777 return constructor->int_field(modifiers_offset); | |
| 1778 } | |
| 1779 | |
| 1780 void java_lang_reflect_Constructor::set_modifiers(oop constructor, int value) { | |
| 1781 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1782 constructor->int_field_put(modifiers_offset, value); | |
| 1783 } | |
| 1784 | |
| 1785 bool java_lang_reflect_Constructor::has_signature_field() { | |
| 1786 return (signature_offset >= 0); | |
| 1787 } | |
| 1788 | |
| 1789 oop java_lang_reflect_Constructor::signature(oop constructor) { | |
| 1790 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1791 assert(has_signature_field(), "signature field must be present"); | |
| 1792 return constructor->obj_field(signature_offset); | |
| 1793 } | |
| 1794 | |
| 1795 void java_lang_reflect_Constructor::set_signature(oop constructor, oop value) { | |
| 1796 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1797 assert(has_signature_field(), "signature field must be present"); | |
| 1798 constructor->obj_field_put(signature_offset, value); | |
| 1799 } | |
| 1800 | |
| 1801 bool java_lang_reflect_Constructor::has_annotations_field() { | |
| 1802 return (annotations_offset >= 0); | |
| 1803 } | |
| 1804 | |
| 1805 oop java_lang_reflect_Constructor::annotations(oop constructor) { | |
| 1806 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1807 assert(has_annotations_field(), "annotations field must be present"); | |
| 1808 return constructor->obj_field(annotations_offset); | |
| 1809 } | |
| 1810 | |
| 1811 void java_lang_reflect_Constructor::set_annotations(oop constructor, oop value) { | |
| 1812 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1813 assert(has_annotations_field(), "annotations field must be present"); | |
| 1814 constructor->obj_field_put(annotations_offset, value); | |
| 1815 } | |
| 1816 | |
| 1817 bool java_lang_reflect_Constructor::has_parameter_annotations_field() { | |
| 1818 return (parameter_annotations_offset >= 0); | |
| 1819 } | |
| 1820 | |
| 1821 oop java_lang_reflect_Constructor::parameter_annotations(oop method) { | |
| 1822 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1823 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1824 return method->obj_field(parameter_annotations_offset); | |
| 1825 } | |
| 1826 | |
| 1827 void java_lang_reflect_Constructor::set_parameter_annotations(oop method, oop value) { | |
| 1828 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1829 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1830 method->obj_field_put(parameter_annotations_offset, value); | |
| 1831 } | |
| 1832 | |
| 1833 void java_lang_reflect_Field::compute_offsets() { | |
| 1142 | 1834 klassOop k = SystemDictionary::reflect_Field_klass(); |
|
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1835 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1836 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1837 compute_offset(type_offset, k, vmSymbols::type_name(), vmSymbols::class_signature()); |
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1838 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1839 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 1840 // The generic signature and annotations fields are only present in 1.5 |
| 1841 signature_offset = -1; | |
| 1842 annotations_offset = -1; | |
|
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1843 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1844 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
| 0 | 1845 } |
| 1846 | |
| 1847 Handle java_lang_reflect_Field::create(TRAPS) { | |
| 1848 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1849 symbolHandle name = vmSymbolHandles::java_lang_reflect_Field(); | |
| 1850 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); | |
| 1851 instanceKlassHandle klass (THREAD, k); | |
| 1852 // Ensure it is initialized | |
| 1853 klass->initialize(CHECK_NH); | |
| 1854 return klass->allocate_instance_handle(CHECK_NH); | |
| 1855 } | |
| 1856 | |
| 1857 oop java_lang_reflect_Field::clazz(oop reflect) { | |
| 1858 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1859 return reflect->obj_field(clazz_offset); | |
| 1860 } | |
| 1861 | |
| 1862 void java_lang_reflect_Field::set_clazz(oop reflect, oop value) { | |
| 1863 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1864 reflect->obj_field_put(clazz_offset, value); | |
| 1865 } | |
| 1866 | |
| 1867 oop java_lang_reflect_Field::name(oop field) { | |
| 1868 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1869 return field->obj_field(name_offset); | |
| 1870 } | |
| 1871 | |
| 1872 void java_lang_reflect_Field::set_name(oop field, oop value) { | |
| 1873 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1874 field->obj_field_put(name_offset, value); | |
| 1875 } | |
| 1876 | |
| 1877 oop java_lang_reflect_Field::type(oop field) { | |
| 1878 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1879 return field->obj_field(type_offset); | |
| 1880 } | |
| 1881 | |
| 1882 void java_lang_reflect_Field::set_type(oop field, oop value) { | |
| 1883 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1884 field->obj_field_put(type_offset, value); | |
| 1885 } | |
| 1886 | |
| 1887 int java_lang_reflect_Field::slot(oop reflect) { | |
| 1888 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1889 return reflect->int_field(slot_offset); | |
| 1890 } | |
| 1891 | |
| 1892 void java_lang_reflect_Field::set_slot(oop reflect, int value) { | |
| 1893 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1894 reflect->int_field_put(slot_offset, value); | |
| 1895 } | |
| 1896 | |
| 1897 int java_lang_reflect_Field::modifiers(oop field) { | |
| 1898 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1899 return field->int_field(modifiers_offset); | |
| 1900 } | |
| 1901 | |
| 1902 void java_lang_reflect_Field::set_modifiers(oop field, int value) { | |
| 1903 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1904 field->int_field_put(modifiers_offset, value); | |
| 1905 } | |
| 1906 | |
| 1907 bool java_lang_reflect_Field::has_signature_field() { | |
| 1908 return (signature_offset >= 0); | |
| 1909 } | |
| 1910 | |
| 1911 oop java_lang_reflect_Field::signature(oop field) { | |
| 1912 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1913 assert(has_signature_field(), "signature field must be present"); | |
| 1914 return field->obj_field(signature_offset); | |
| 1915 } | |
| 1916 | |
| 1917 void java_lang_reflect_Field::set_signature(oop field, oop value) { | |
| 1918 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1919 assert(has_signature_field(), "signature field must be present"); | |
| 1920 field->obj_field_put(signature_offset, value); | |
| 1921 } | |
| 1922 | |
| 1923 bool java_lang_reflect_Field::has_annotations_field() { | |
| 1924 return (annotations_offset >= 0); | |
| 1925 } | |
| 1926 | |
| 1927 oop java_lang_reflect_Field::annotations(oop field) { | |
| 1928 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1929 assert(has_annotations_field(), "annotations field must be present"); | |
| 1930 return field->obj_field(annotations_offset); | |
| 1931 } | |
| 1932 | |
| 1933 void java_lang_reflect_Field::set_annotations(oop field, oop value) { | |
| 1934 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1935 assert(has_annotations_field(), "annotations field must be present"); | |
| 1936 field->obj_field_put(annotations_offset, value); | |
| 1937 } | |
| 1938 | |
| 1939 | |
| 1940 void sun_reflect_ConstantPool::compute_offsets() { | |
| 1142 | 1941 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
| 0 | 1942 // This null test can be removed post beta |
| 1943 if (k != NULL) { | |
|
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1944 compute_offset(_cp_oop_offset, k, vmSymbols::constantPoolOop_name(), vmSymbols::object_signature()); |
| 0 | 1945 } |
| 1946 } | |
| 1947 | |
| 1948 | |
| 1949 Handle sun_reflect_ConstantPool::create(TRAPS) { | |
| 1950 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1142 | 1951 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
| 0 | 1952 instanceKlassHandle klass (THREAD, k); |
| 1953 // Ensure it is initialized | |
| 1954 klass->initialize(CHECK_NH); | |
| 1955 return klass->allocate_instance_handle(CHECK_NH); | |
| 1956 } | |
| 1957 | |
| 1958 | |
| 1959 oop sun_reflect_ConstantPool::cp_oop(oop reflect) { | |
| 1960 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1961 return reflect->obj_field(_cp_oop_offset); | |
| 1962 } | |
| 1963 | |
| 1964 | |
| 1965 void sun_reflect_ConstantPool::set_cp_oop(oop reflect, oop value) { | |
| 1966 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1967 reflect->obj_field_put(_cp_oop_offset, value); | |
| 1968 } | |
| 1969 | |
| 1970 void sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets() { | |
| 1142 | 1971 klassOop k = SystemDictionary::reflect_UnsafeStaticFieldAccessorImpl_klass(); |
| 0 | 1972 // This null test can be removed post beta |
| 1973 if (k != NULL) { | |
|
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1974 compute_offset(_base_offset, k, |
| 0 | 1975 vmSymbols::base_name(), vmSymbols::object_signature()); |
| 1976 } | |
| 1977 } | |
| 1978 | |
|
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1979 oop java_lang_boxing_object::initialize_and_allocate(BasicType type, TRAPS) { |
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1980 klassOop k = SystemDictionary::box_klass(type); |
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1981 if (k == NULL) return NULL; |
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1982 instanceKlassHandle h (THREAD, k); |
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1983 if (!h->is_initialized()) h->initialize(CHECK_0); |
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1984 return h->allocate_instance(THREAD); |
| 0 | 1985 } |
| 1986 | |
| 1987 | |
| 1988 oop java_lang_boxing_object::create(BasicType type, jvalue* value, TRAPS) { | |
|
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1989 oop box = initialize_and_allocate(type, CHECK_0); |
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1990 if (box == NULL) return NULL; |
| 0 | 1991 switch (type) { |
| 1992 case T_BOOLEAN: | |
| 1993 box->bool_field_put(value_offset, value->z); | |
| 1994 break; | |
| 1995 case T_CHAR: | |
| 1996 box->char_field_put(value_offset, value->c); | |
| 1997 break; | |
| 1998 case T_FLOAT: | |
| 1999 box->float_field_put(value_offset, value->f); | |
| 2000 break; | |
| 2001 case T_DOUBLE: | |
|
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2002 box->double_field_put(long_value_offset, value->d); |
| 0 | 2003 break; |
| 2004 case T_BYTE: | |
| 2005 box->byte_field_put(value_offset, value->b); | |
| 2006 break; | |
| 2007 case T_SHORT: | |
| 2008 box->short_field_put(value_offset, value->s); | |
| 2009 break; | |
| 2010 case T_INT: | |
| 2011 box->int_field_put(value_offset, value->i); | |
| 2012 break; | |
| 2013 case T_LONG: | |
|
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2014 box->long_field_put(long_value_offset, value->j); |
| 0 | 2015 break; |
| 2016 default: | |
| 2017 return NULL; | |
| 2018 } | |
| 2019 return box; | |
| 2020 } | |
| 2021 | |
| 2022 | |
|
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2023 BasicType java_lang_boxing_object::basic_type(oop box) { |
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2024 if (box == NULL) return T_ILLEGAL; |
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2025 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2026 if (type == T_OBJECT) // 'unknown' value returned by SD::bkt |
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2027 return T_ILLEGAL; |
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2028 return type; |
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2029 } |
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2030 |
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2031 |
| 0 | 2032 BasicType java_lang_boxing_object::get_value(oop box, jvalue* value) { |
|
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2033 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2034 switch (type) { |
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2035 case T_BOOLEAN: |
| 0 | 2036 value->z = box->bool_field(value_offset); |
|
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2037 break; |
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2038 case T_CHAR: |
| 0 | 2039 value->c = box->char_field(value_offset); |
|
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2040 break; |
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2041 case T_FLOAT: |
| 0 | 2042 value->f = box->float_field(value_offset); |
|
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2043 break; |
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2044 case T_DOUBLE: |
|
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2045 value->d = box->double_field(long_value_offset); |
|
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2046 break; |
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2047 case T_BYTE: |
| 0 | 2048 value->b = box->byte_field(value_offset); |
|
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2049 break; |
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2050 case T_SHORT: |
| 0 | 2051 value->s = box->short_field(value_offset); |
|
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2052 break; |
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2053 case T_INT: |
| 0 | 2054 value->i = box->int_field(value_offset); |
|
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2055 break; |
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2056 case T_LONG: |
|
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2057 value->j = box->long_field(long_value_offset); |
|
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2058 break; |
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2059 default: |
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2060 return T_ILLEGAL; |
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2061 } // end switch |
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2062 return type; |
| 0 | 2063 } |
| 2064 | |
| 2065 | |
| 2066 BasicType java_lang_boxing_object::set_value(oop box, jvalue* value) { | |
|
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2067 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2068 switch (type) { |
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2069 case T_BOOLEAN: |
| 0 | 2070 box->bool_field_put(value_offset, value->z); |
|
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2071 break; |
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2072 case T_CHAR: |
| 0 | 2073 box->char_field_put(value_offset, value->c); |
|
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2074 break; |
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2075 case T_FLOAT: |
| 0 | 2076 box->float_field_put(value_offset, value->f); |
|
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2077 break; |
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2078 case T_DOUBLE: |
|
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2079 box->double_field_put(long_value_offset, value->d); |
|
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2080 break; |
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2081 case T_BYTE: |
| 0 | 2082 box->byte_field_put(value_offset, value->b); |
|
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2083 break; |
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2084 case T_SHORT: |
| 0 | 2085 box->short_field_put(value_offset, value->s); |
|
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2086 break; |
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2087 case T_INT: |
| 0 | 2088 box->int_field_put(value_offset, value->i); |
|
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2089 break; |
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2090 case T_LONG: |
|
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2091 box->long_field_put(long_value_offset, value->j); |
|
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2092 break; |
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2093 default: |
|
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2094 return T_ILLEGAL; |
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2095 } // end switch |
|
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2096 return type; |
| 0 | 2097 } |
| 2098 | |
| 2099 | |
|
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2100 void java_lang_boxing_object::print(BasicType type, jvalue* value, outputStream* st) { |
|
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2101 switch (type) { |
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2102 case T_BOOLEAN: st->print("%s", value->z ? "true" : "false"); break; |
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2103 case T_CHAR: st->print("%d", value->c); break; |
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2104 case T_BYTE: st->print("%d", value->b); break; |
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2105 case T_SHORT: st->print("%d", value->s); break; |
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2106 case T_INT: st->print("%d", value->i); break; |
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2107 case T_LONG: st->print(INT64_FORMAT, value->j); break; |
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2108 case T_FLOAT: st->print("%f", value->f); break; |
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2109 case T_DOUBLE: st->print("%lf", value->d); break; |
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2110 default: st->print("type %d?", type); break; |
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2111 } |
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2112 } |
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2113 |
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2114 |
| 0 | 2115 // Support for java_lang_ref_Reference |
|
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2116 oop java_lang_ref_Reference::pending_list_lock() { |
| 1142 | 2117 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
|
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2118 char *addr = (((char *)ik->start_of_static_fields()) + static_lock_offset); |
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2119 if (UseCompressedOops) { |
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2120 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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2121 } else { |
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2122 return oopDesc::load_decode_heap_oop((oop*)addr); |
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2123 } |
| 0 | 2124 } |
| 2125 | |
|
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2126 HeapWord *java_lang_ref_Reference::pending_list_addr() { |
| 1142 | 2127 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
|
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2128 char *addr = (((char *)ik->start_of_static_fields()) + static_pending_offset); |
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2129 // XXX This might not be HeapWord aligned, almost rather be char *. |
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2130 return (HeapWord*)addr; |
| 0 | 2131 } |
| 2132 | |
|
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2133 oop java_lang_ref_Reference::pending_list() { |
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2134 char *addr = (char *)pending_list_addr(); |
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2135 if (UseCompressedOops) { |
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2136 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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2137 } else { |
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2138 return oopDesc::load_decode_heap_oop((oop*)addr); |
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|
2139 } |
| 0 | 2140 } |
| 2141 | |
| 2142 | |
| 2143 // Support for java_lang_ref_SoftReference | |
| 2144 | |
| 2145 jlong java_lang_ref_SoftReference::timestamp(oop ref) { | |
| 2146 return ref->long_field(timestamp_offset); | |
| 2147 } | |
| 2148 | |
| 2149 jlong java_lang_ref_SoftReference::clock() { | |
| 1142 | 2150 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
| 0 | 2151 int offset = ik->offset_of_static_fields() + static_clock_offset; |
| 2152 | |
| 1142 | 2153 return SystemDictionary::SoftReference_klass()->long_field(offset); |
| 0 | 2154 } |
| 2155 | |
| 2156 void java_lang_ref_SoftReference::set_clock(jlong value) { | |
| 1142 | 2157 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
| 0 | 2158 int offset = ik->offset_of_static_fields() + static_clock_offset; |
| 2159 | |
| 1142 | 2160 SystemDictionary::SoftReference_klass()->long_field_put(offset, value); |
| 0 | 2161 } |
| 2162 | |
| 2163 | |
| 710 | 2164 // Support for java_dyn_MethodHandle |
| 2165 | |
| 2166 int java_dyn_MethodHandle::_type_offset; | |
| 2167 int java_dyn_MethodHandle::_vmtarget_offset; | |
| 2168 int java_dyn_MethodHandle::_vmentry_offset; | |
| 2169 int java_dyn_MethodHandle::_vmslots_offset; | |
| 2170 | |
| 2171 int sun_dyn_MemberName::_clazz_offset; | |
| 2172 int sun_dyn_MemberName::_name_offset; | |
| 2173 int sun_dyn_MemberName::_type_offset; | |
| 2174 int sun_dyn_MemberName::_flags_offset; | |
| 2175 int sun_dyn_MemberName::_vmtarget_offset; | |
| 2176 int sun_dyn_MemberName::_vmindex_offset; | |
| 2177 | |
| 2178 int sun_dyn_DirectMethodHandle::_vmindex_offset; | |
| 2179 | |
| 2180 int sun_dyn_BoundMethodHandle::_argument_offset; | |
| 2181 int sun_dyn_BoundMethodHandle::_vmargslot_offset; | |
| 2182 | |
| 2183 int sun_dyn_AdapterMethodHandle::_conversion_offset; | |
| 2184 | |
| 2185 void java_dyn_MethodHandle::compute_offsets() { | |
| 2186 klassOop k = SystemDictionary::MethodHandle_klass(); | |
| 2187 if (k != NULL && EnableMethodHandles) { | |
| 2188 compute_offset(_type_offset, k, vmSymbols::type_name(), vmSymbols::java_dyn_MethodType_signature(), true); | |
| 2189 compute_offset(_vmtarget_offset, k, vmSymbols::vmtarget_name(), vmSymbols::object_signature(), true); | |
| 2190 compute_offset(_vmentry_offset, k, vmSymbols::vmentry_name(), vmSymbols::machine_word_signature(), true); | |
| 2191 | |
| 2192 // Note: MH.vmslots (if it is present) is a hoisted copy of MH.type.form.vmslots. | |
| 2193 // It is optional pending experiments to keep or toss. | |
| 2194 compute_optional_offset(_vmslots_offset, k, vmSymbols::vmslots_name(), vmSymbols::int_signature(), true); | |
| 2195 } | |
| 2196 } | |
| 2197 | |
| 2198 void sun_dyn_MemberName::compute_offsets() { | |
| 2199 klassOop k = SystemDictionary::MemberName_klass(); | |
| 2200 if (k != NULL && EnableMethodHandles) { | |
| 2201 compute_offset(_clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); | |
| 2202 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); | |
| 2203 compute_offset(_type_offset, k, vmSymbols::type_name(), vmSymbols::object_signature()); | |
| 2204 compute_offset(_flags_offset, k, vmSymbols::flags_name(), vmSymbols::int_signature()); | |
| 2205 compute_offset(_vmtarget_offset, k, vmSymbols::vmtarget_name(), vmSymbols::object_signature()); | |
| 2206 compute_offset(_vmindex_offset, k, vmSymbols::vmindex_name(), vmSymbols::int_signature()); | |
| 2207 } | |
| 2208 } | |
| 2209 | |
| 2210 void sun_dyn_DirectMethodHandle::compute_offsets() { | |
| 2211 klassOop k = SystemDictionary::DirectMethodHandle_klass(); | |
| 2212 if (k != NULL && EnableMethodHandles) { | |
| 2213 compute_offset(_vmindex_offset, k, vmSymbols::vmindex_name(), vmSymbols::int_signature(), true); | |
| 2214 } | |
| 2215 } | |
| 2216 | |
| 2217 void sun_dyn_BoundMethodHandle::compute_offsets() { | |
| 2218 klassOop k = SystemDictionary::BoundMethodHandle_klass(); | |
| 2219 if (k != NULL && EnableMethodHandles) { | |
| 2220 compute_offset(_vmargslot_offset, k, vmSymbols::vmargslot_name(), vmSymbols::int_signature(), true); | |
| 2221 compute_offset(_argument_offset, k, vmSymbols::argument_name(), vmSymbols::object_signature(), true); | |
| 2222 } | |
| 2223 } | |
| 2224 | |
| 2225 void sun_dyn_AdapterMethodHandle::compute_offsets() { | |
| 2226 klassOop k = SystemDictionary::AdapterMethodHandle_klass(); | |
| 2227 if (k != NULL && EnableMethodHandles) { | |
| 2228 compute_offset(_conversion_offset, k, vmSymbols::conversion_name(), vmSymbols::int_signature(), true); | |
| 2229 } | |
| 2230 } | |
| 2231 | |
| 2232 oop java_dyn_MethodHandle::type(oop mh) { | |
| 2233 return mh->obj_field(_type_offset); | |
| 2234 } | |
| 2235 | |
| 2236 void java_dyn_MethodHandle::set_type(oop mh, oop mtype) { | |
| 2237 mh->obj_field_put(_type_offset, mtype); | |
| 2238 } | |
| 2239 | |
| 2240 int java_dyn_MethodHandle::vmslots(oop mh) { | |
| 2241 int vmslots_offset = _vmslots_offset; | |
| 2242 if (vmslots_offset != 0) { | |
| 2243 #ifdef ASSERT | |
| 2244 int x = mh->int_field(vmslots_offset); | |
| 2245 int y = compute_vmslots(mh); | |
| 2246 assert(x == y, "correct hoisted value"); | |
| 2247 #endif | |
| 2248 return mh->int_field(vmslots_offset); | |
| 2249 } else { | |
| 2250 return compute_vmslots(mh); | |
| 2251 } | |
| 2252 } | |
| 2253 | |
| 2254 // if MH.vmslots exists, hoist into it the value of type.form.vmslots | |
| 2255 void java_dyn_MethodHandle::init_vmslots(oop mh) { | |
| 2256 int vmslots_offset = _vmslots_offset; | |
| 2257 if (vmslots_offset != 0) { | |
| 2258 mh->int_field_put(vmslots_offset, compute_vmslots(mh)); | |
| 2259 } | |
| 2260 } | |
| 2261 | |
| 2262 // fetch type.form.vmslots, which is the number of JVM stack slots | |
| 2263 // required to carry the arguments of this MH | |
| 2264 int java_dyn_MethodHandle::compute_vmslots(oop mh) { | |
| 2265 oop mtype = type(mh); | |
| 2266 if (mtype == NULL) return 0; // Java code would get NPE | |
| 2267 oop form = java_dyn_MethodType::form(mtype); | |
| 2268 if (form == NULL) return 0; // Java code would get NPE | |
| 2269 return java_dyn_MethodTypeForm::vmslots(form); | |
| 2270 } | |
| 2271 | |
| 2272 // fetch the low-level entry point for this mh | |
| 2273 MethodHandleEntry* java_dyn_MethodHandle::vmentry(oop mh) { | |
| 2274 return (MethodHandleEntry*) mh->address_field(_vmentry_offset); | |
| 2275 } | |
| 2276 | |
| 2277 void java_dyn_MethodHandle::set_vmentry(oop mh, MethodHandleEntry* me) { | |
| 2278 assert(_vmentry_offset != 0, "must be present"); | |
| 2279 | |
| 2280 // This is always the final step that initializes a valid method handle: | |
| 2281 mh->release_address_field_put(_vmentry_offset, (address) me); | |
| 2282 | |
| 2283 // There should be enough memory barriers on exit from native methods | |
| 2284 // to ensure that the MH is fully initialized to all threads before | |
| 2285 // Java code can publish it in global data structures. | |
| 2286 // But just in case, we use release_address_field_put. | |
| 2287 } | |
| 2288 | |
| 2289 /// MemberName accessors | |
| 2290 | |
| 2291 oop sun_dyn_MemberName::clazz(oop mname) { | |
| 2292 assert(is_instance(mname), "wrong type"); | |
| 2293 return mname->obj_field(_clazz_offset); | |
| 2294 } | |
| 2295 | |
| 2296 void sun_dyn_MemberName::set_clazz(oop mname, oop clazz) { | |
| 2297 assert(is_instance(mname), "wrong type"); | |
| 2298 mname->obj_field_put(_clazz_offset, clazz); | |
| 2299 } | |
| 2300 | |
| 2301 oop sun_dyn_MemberName::name(oop mname) { | |
| 2302 assert(is_instance(mname), "wrong type"); | |
| 2303 return mname->obj_field(_name_offset); | |
| 2304 } | |
| 2305 | |
| 2306 void sun_dyn_MemberName::set_name(oop mname, oop name) { | |
| 2307 assert(is_instance(mname), "wrong type"); | |
| 2308 mname->obj_field_put(_name_offset, name); | |
| 2309 } | |
| 2310 | |
| 2311 oop sun_dyn_MemberName::type(oop mname) { | |
| 2312 assert(is_instance(mname), "wrong type"); | |
| 2313 return mname->obj_field(_type_offset); | |
| 2314 } | |
| 2315 | |
| 2316 void sun_dyn_MemberName::set_type(oop mname, oop type) { | |
| 2317 assert(is_instance(mname), "wrong type"); | |
| 2318 mname->obj_field_put(_type_offset, type); | |
| 2319 } | |
| 2320 | |
| 2321 int sun_dyn_MemberName::flags(oop mname) { | |
| 2322 assert(is_instance(mname), "wrong type"); | |
| 2323 return mname->int_field(_flags_offset); | |
| 2324 } | |
| 2325 | |
| 2326 void sun_dyn_MemberName::set_flags(oop mname, int flags) { | |
| 2327 assert(is_instance(mname), "wrong type"); | |
| 2328 mname->int_field_put(_flags_offset, flags); | |
| 2329 } | |
| 2330 | |
| 2331 oop sun_dyn_MemberName::vmtarget(oop mname) { | |
| 2332 assert(is_instance(mname), "wrong type"); | |
| 2333 return mname->obj_field(_vmtarget_offset); | |
| 2334 } | |
| 2335 | |
| 2336 void sun_dyn_MemberName::set_vmtarget(oop mname, oop ref) { | |
| 2337 assert(is_instance(mname), "wrong type"); | |
| 2338 mname->obj_field_put(_vmtarget_offset, ref); | |
| 2339 } | |
| 2340 | |
| 2341 int sun_dyn_MemberName::vmindex(oop mname) { | |
| 2342 assert(is_instance(mname), "wrong type"); | |
| 2343 return mname->int_field(_vmindex_offset); | |
| 2344 } | |
| 2345 | |
| 2346 void sun_dyn_MemberName::set_vmindex(oop mname, int index) { | |
| 2347 assert(is_instance(mname), "wrong type"); | |
| 2348 mname->int_field_put(_vmindex_offset, index); | |
| 2349 } | |
| 2350 | |
| 2351 oop java_dyn_MethodHandle::vmtarget(oop mh) { | |
| 2352 assert(is_instance(mh), "MH only"); | |
| 2353 return mh->obj_field(_vmtarget_offset); | |
| 2354 } | |
| 2355 | |
| 2356 void java_dyn_MethodHandle::set_vmtarget(oop mh, oop ref) { | |
| 2357 assert(is_instance(mh), "MH only"); | |
| 2358 mh->obj_field_put(_vmtarget_offset, ref); | |
| 2359 } | |
| 2360 | |
| 2361 int sun_dyn_DirectMethodHandle::vmindex(oop mh) { | |
| 2362 assert(is_instance(mh), "DMH only"); | |
| 2363 return mh->int_field(_vmindex_offset); | |
| 2364 } | |
| 2365 | |
| 2366 void sun_dyn_DirectMethodHandle::set_vmindex(oop mh, int index) { | |
| 2367 assert(is_instance(mh), "DMH only"); | |
| 2368 mh->int_field_put(_vmindex_offset, index); | |
| 2369 } | |
| 2370 | |
| 2371 int sun_dyn_BoundMethodHandle::vmargslot(oop mh) { | |
| 2372 assert(is_instance(mh), "BMH only"); | |
| 2373 return mh->int_field(_vmargslot_offset); | |
| 2374 } | |
| 2375 | |
| 2376 oop sun_dyn_BoundMethodHandle::argument(oop mh) { | |
| 2377 assert(is_instance(mh), "BMH only"); | |
| 2378 return mh->obj_field(_argument_offset); | |
| 2379 } | |
| 2380 | |
| 2381 int sun_dyn_AdapterMethodHandle::conversion(oop mh) { | |
| 2382 assert(is_instance(mh), "AMH only"); | |
| 2383 return mh->int_field(_conversion_offset); | |
| 2384 } | |
| 2385 | |
| 2386 void sun_dyn_AdapterMethodHandle::set_conversion(oop mh, int conv) { | |
| 2387 assert(is_instance(mh), "AMH only"); | |
| 2388 mh->int_field_put(_conversion_offset, conv); | |
| 2389 } | |
| 2390 | |
| 2391 | |
| 2392 // Support for java_dyn_MethodType | |
| 2393 | |
| 2394 int java_dyn_MethodType::_rtype_offset; | |
| 2395 int java_dyn_MethodType::_ptypes_offset; | |
| 2396 int java_dyn_MethodType::_form_offset; | |
| 2397 | |
| 2398 void java_dyn_MethodType::compute_offsets() { | |
| 2399 klassOop k = SystemDictionary::MethodType_klass(); | |
| 2400 if (k != NULL) { | |
| 2401 compute_offset(_rtype_offset, k, vmSymbols::rtype_name(), vmSymbols::class_signature()); | |
| 2402 compute_offset(_ptypes_offset, k, vmSymbols::ptypes_name(), vmSymbols::class_array_signature()); | |
| 2403 compute_offset(_form_offset, k, vmSymbols::form_name(), vmSymbols::java_dyn_MethodTypeForm_signature()); | |
| 2404 } | |
| 2405 } | |
| 2406 | |
| 2407 void java_dyn_MethodType::print_signature(oop mt, outputStream* st) { | |
| 2408 st->print("("); | |
| 2409 objArrayOop pts = ptypes(mt); | |
| 2410 for (int i = 0, limit = pts->length(); i < limit; i++) { | |
| 2411 java_lang_Class::print_signature(pts->obj_at(i), st); | |
| 2412 } | |
| 2413 st->print(")"); | |
| 2414 java_lang_Class::print_signature(rtype(mt), st); | |
| 2415 } | |
| 2416 | |
| 2417 symbolOop java_dyn_MethodType::as_signature(oop mt, bool intern_if_not_found, TRAPS) { | |
| 2418 ResourceMark rm; | |
| 2419 stringStream buffer(128); | |
| 2420 print_signature(mt, &buffer); | |
| 2421 const char* sigstr = buffer.base(); | |
| 2422 int siglen = (int) buffer.size(); | |
| 2423 if (!intern_if_not_found) | |
| 2424 return SymbolTable::probe(sigstr, siglen); | |
| 2425 else | |
| 2426 return oopFactory::new_symbol(sigstr, siglen, THREAD); | |
| 2427 } | |
| 2428 | |
| 2429 oop java_dyn_MethodType::rtype(oop mt) { | |
| 2430 assert(is_instance(mt), "must be a MethodType"); | |
| 2431 return mt->obj_field(_rtype_offset); | |
| 2432 } | |
| 2433 | |
| 2434 objArrayOop java_dyn_MethodType::ptypes(oop mt) { | |
| 2435 assert(is_instance(mt), "must be a MethodType"); | |
| 2436 return (objArrayOop) mt->obj_field(_ptypes_offset); | |
| 2437 } | |
| 2438 | |
| 2439 oop java_dyn_MethodType::form(oop mt) { | |
| 2440 assert(is_instance(mt), "must be a MethodType"); | |
| 2441 return mt->obj_field(_form_offset); | |
| 2442 } | |
| 2443 | |
| 2444 oop java_dyn_MethodType::ptype(oop mt, int idx) { | |
| 2445 return ptypes(mt)->obj_at(idx); | |
| 2446 } | |
| 2447 | |
|
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2448 int java_dyn_MethodType::ptype_count(oop mt) { |
|
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|
2449 return ptypes(mt)->length(); |
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|
2450 } |
|
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|
2451 |
| 710 | 2452 |
| 2453 | |
| 2454 // Support for java_dyn_MethodTypeForm | |
| 2455 | |
| 2456 int java_dyn_MethodTypeForm::_vmslots_offset; | |
| 2457 int java_dyn_MethodTypeForm::_erasedType_offset; | |
|
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|
2458 int java_dyn_MethodTypeForm::_genericInvoker_offset; |
| 710 | 2459 |
| 2460 void java_dyn_MethodTypeForm::compute_offsets() { | |
| 2461 klassOop k = SystemDictionary::MethodTypeForm_klass(); | |
| 2462 if (k != NULL) { | |
| 2463 compute_optional_offset(_vmslots_offset, k, vmSymbols::vmslots_name(), vmSymbols::int_signature(), true); | |
| 2464 compute_optional_offset(_erasedType_offset, k, vmSymbols::erasedType_name(), vmSymbols::java_dyn_MethodType_signature(), true); | |
|
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|
2465 compute_optional_offset(_genericInvoker_offset, k, vmSymbols::genericInvoker_name(), vmSymbols::java_dyn_MethodHandle_signature(), true); |
|
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|
2466 if (_genericInvoker_offset == 0) _genericInvoker_offset = -1; // set to explicit "empty" value |
| 710 | 2467 } |
| 2468 } | |
| 2469 | |
| 2470 int java_dyn_MethodTypeForm::vmslots(oop mtform) { | |
| 2471 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); | |
| 2472 return mtform->int_field(_vmslots_offset); | |
| 2473 } | |
| 2474 | |
| 2475 oop java_dyn_MethodTypeForm::erasedType(oop mtform) { | |
| 2476 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); | |
| 2477 return mtform->obj_field(_erasedType_offset); | |
| 2478 } | |
| 2479 | |
|
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|
2480 oop java_dyn_MethodTypeForm::genericInvoker(oop mtform) { |
|
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|
2481 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
|
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|
2482 return mtform->obj_field(_genericInvoker_offset); |
|
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|
2483 } |
|
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|
2484 |
| 710 | 2485 |
|
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|
2486 // Support for java_dyn_CallSite |
|
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|
2487 |
|
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|
2488 int java_dyn_CallSite::_target_offset; |
|
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|
2489 int java_dyn_CallSite::_caller_method_offset; |
|
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|
2490 int java_dyn_CallSite::_caller_bci_offset; |
|
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|
2491 |
|
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|
2492 void java_dyn_CallSite::compute_offsets() { |
|
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|
2493 if (!EnableInvokeDynamic) return; |
|
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|
2494 klassOop k = SystemDictionary::CallSite_klass(); |
|
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|
2495 if (k != NULL) { |
|
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|
2496 compute_offset(_target_offset, k, vmSymbols::target_name(), vmSymbols::java_dyn_MethodHandle_signature()); |
|
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|
2497 compute_offset(_caller_method_offset, k, vmSymbols::vmmethod_name(), vmSymbols::sun_dyn_MemberName_signature()); |
|
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|
2498 compute_offset(_caller_bci_offset, k, vmSymbols::vmindex_name(), vmSymbols::int_signature()); |
|
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|
2499 } |
|
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|
2500 } |
|
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|
2501 |
|
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|
2502 oop java_dyn_CallSite::target(oop site) { |
|
726
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|
2503 return site->obj_field(_target_offset); |
|
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|
2504 } |
|
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|
2505 |
|
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|
2506 void java_dyn_CallSite::set_target(oop site, oop target) { |
|
726
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|
2507 site->obj_field_put(_target_offset, target); |
|
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|
2508 } |
|
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|
2509 |
|
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|
2510 oop java_dyn_CallSite::caller_method(oop site) { |
|
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|
2511 return site->obj_field(_caller_method_offset); |
|
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|
2512 } |
|
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|
2513 |
|
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|
2514 void java_dyn_CallSite::set_caller_method(oop site, oop ref) { |
|
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|
2515 site->obj_field_put(_caller_method_offset, ref); |
|
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|
2516 } |
|
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|
2517 |
|
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|
2518 jint java_dyn_CallSite::caller_bci(oop site) { |
|
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|
2519 return site->int_field(_caller_bci_offset); |
|
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|
2520 } |
|
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|
2521 |
|
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|
2522 void java_dyn_CallSite::set_caller_bci(oop site, jint bci) { |
|
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|
2523 site->int_field_put(_caller_bci_offset, bci); |
|
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|
2524 } |
| 710 | 2525 |
| 2526 | |
| 0 | 2527 // Support for java_security_AccessControlContext |
| 2528 | |
| 2529 int java_security_AccessControlContext::_context_offset = 0; | |
| 2530 int java_security_AccessControlContext::_privilegedContext_offset = 0; | |
| 2531 int java_security_AccessControlContext::_isPrivileged_offset = 0; | |
| 2532 | |
| 2533 void java_security_AccessControlContext::compute_offsets() { | |
| 2534 assert(_isPrivileged_offset == 0, "offsets should be initialized only once"); | |
| 2535 fieldDescriptor fd; | |
| 2536 instanceKlass* ik = instanceKlass::cast(SystemDictionary::AccessControlContext_klass()); | |
| 2537 | |
| 2538 if (!ik->find_local_field(vmSymbols::context_name(), vmSymbols::protectiondomain_signature(), &fd)) { | |
| 2539 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2540 } | |
| 2541 _context_offset = fd.offset(); | |
| 2542 | |
| 2543 if (!ik->find_local_field(vmSymbols::privilegedContext_name(), vmSymbols::accesscontrolcontext_signature(), &fd)) { | |
| 2544 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2545 } | |
| 2546 _privilegedContext_offset = fd.offset(); | |
| 2547 | |
| 2548 if (!ik->find_local_field(vmSymbols::isPrivileged_name(), vmSymbols::bool_signature(), &fd)) { | |
| 2549 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2550 } | |
| 2551 _isPrivileged_offset = fd.offset(); | |
| 2552 } | |
| 2553 | |
| 2554 | |
| 2555 oop java_security_AccessControlContext::create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS) { | |
| 2556 assert(_isPrivileged_offset != 0, "offsets should have been initialized"); | |
| 2557 // Ensure klass is initialized | |
| 2558 instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->initialize(CHECK_0); | |
| 2559 // Allocate result | |
| 2560 oop result = instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->allocate_instance(CHECK_0); | |
| 2561 // Fill in values | |
| 2562 result->obj_field_put(_context_offset, context()); | |
| 2563 result->obj_field_put(_privilegedContext_offset, privileged_context()); | |
| 2564 result->bool_field_put(_isPrivileged_offset, isPrivileged); | |
| 2565 return result; | |
| 2566 } | |
| 2567 | |
| 2568 | |
| 2569 // Support for java_lang_ClassLoader | |
| 2570 | |
| 2571 oop java_lang_ClassLoader::parent(oop loader) { | |
| 2572 assert(loader->is_oop(), "loader must be oop"); | |
| 2573 return loader->obj_field(parent_offset); | |
| 2574 } | |
| 2575 | |
| 2576 | |
| 2577 bool java_lang_ClassLoader::is_trusted_loader(oop loader) { | |
| 2578 // Fix for 4474172; see evaluation for more details | |
| 2579 loader = non_reflection_class_loader(loader); | |
| 2580 | |
| 2581 oop cl = SystemDictionary::java_system_loader(); | |
| 2582 while(cl != NULL) { | |
| 2583 if (cl == loader) return true; | |
| 2584 cl = parent(cl); | |
| 2585 } | |
| 2586 return false; | |
| 2587 } | |
| 2588 | |
| 2589 oop java_lang_ClassLoader::non_reflection_class_loader(oop loader) { | |
| 2590 if (loader != NULL) { | |
| 2591 // See whether this is one of the class loaders associated with | |
| 2592 // the generated bytecodes for reflection, and if so, "magically" | |
| 2593 // delegate to its parent to prevent class loading from occurring | |
| 2594 // in places where applications using reflection didn't expect it. | |
| 1142 | 2595 klassOop delegating_cl_class = SystemDictionary::reflect_DelegatingClassLoader_klass(); |
| 0 | 2596 // This might be null in non-1.4 JDKs |
| 2597 if (delegating_cl_class != NULL && loader->is_a(delegating_cl_class)) { | |
| 2598 return parent(loader); | |
| 2599 } | |
| 2600 } | |
| 2601 return loader; | |
| 2602 } | |
| 2603 | |
| 2604 | |
| 2605 // Support for java_lang_System | |
| 2606 | |
| 2607 void java_lang_System::compute_offsets() { | |
| 2608 assert(offset_of_static_fields == 0, "offsets should be initialized only once"); | |
| 2609 | |
| 1142 | 2610 instanceKlass* ik = instanceKlass::cast(SystemDictionary::System_klass()); |
| 0 | 2611 offset_of_static_fields = ik->offset_of_static_fields(); |
| 2612 } | |
| 2613 | |
| 2614 int java_lang_System::in_offset_in_bytes() { | |
| 2615 return (offset_of_static_fields + static_in_offset); | |
| 2616 } | |
| 2617 | |
| 2618 | |
| 2619 int java_lang_System::out_offset_in_bytes() { | |
| 2620 return (offset_of_static_fields + static_out_offset); | |
| 2621 } | |
| 2622 | |
| 2623 | |
| 2624 int java_lang_System::err_offset_in_bytes() { | |
| 2625 return (offset_of_static_fields + static_err_offset); | |
| 2626 } | |
| 2627 | |
| 2628 | |
| 2629 | |
| 2630 int java_lang_String::value_offset; | |
| 2631 int java_lang_String::offset_offset; | |
| 2632 int java_lang_String::count_offset; | |
| 2633 int java_lang_String::hash_offset; | |
| 2634 int java_lang_Class::klass_offset; | |
| 2635 int java_lang_Class::array_klass_offset; | |
| 2636 int java_lang_Class::resolved_constructor_offset; | |
| 2637 int java_lang_Class::number_of_fake_oop_fields; | |
| 2638 int java_lang_Throwable::backtrace_offset; | |
| 2639 int java_lang_Throwable::detailMessage_offset; | |
| 2640 int java_lang_Throwable::cause_offset; | |
| 2641 int java_lang_Throwable::stackTrace_offset; | |
| 2642 int java_lang_reflect_AccessibleObject::override_offset; | |
| 2643 int java_lang_reflect_Method::clazz_offset; | |
| 2644 int java_lang_reflect_Method::name_offset; | |
| 2645 int java_lang_reflect_Method::returnType_offset; | |
| 2646 int java_lang_reflect_Method::parameterTypes_offset; | |
| 2647 int java_lang_reflect_Method::exceptionTypes_offset; | |
| 2648 int java_lang_reflect_Method::slot_offset; | |
| 2649 int java_lang_reflect_Method::modifiers_offset; | |
| 2650 int java_lang_reflect_Method::signature_offset; | |
| 2651 int java_lang_reflect_Method::annotations_offset; | |
| 2652 int java_lang_reflect_Method::parameter_annotations_offset; | |
| 2653 int java_lang_reflect_Method::annotation_default_offset; | |
| 2654 int java_lang_reflect_Constructor::clazz_offset; | |
| 2655 int java_lang_reflect_Constructor::parameterTypes_offset; | |
| 2656 int java_lang_reflect_Constructor::exceptionTypes_offset; | |
| 2657 int java_lang_reflect_Constructor::slot_offset; | |
| 2658 int java_lang_reflect_Constructor::modifiers_offset; | |
| 2659 int java_lang_reflect_Constructor::signature_offset; | |
| 2660 int java_lang_reflect_Constructor::annotations_offset; | |
| 2661 int java_lang_reflect_Constructor::parameter_annotations_offset; | |
| 2662 int java_lang_reflect_Field::clazz_offset; | |
| 2663 int java_lang_reflect_Field::name_offset; | |
| 2664 int java_lang_reflect_Field::type_offset; | |
| 2665 int java_lang_reflect_Field::slot_offset; | |
| 2666 int java_lang_reflect_Field::modifiers_offset; | |
| 2667 int java_lang_reflect_Field::signature_offset; | |
| 2668 int java_lang_reflect_Field::annotations_offset; | |
| 2669 int java_lang_boxing_object::value_offset; | |
|
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|
2670 int java_lang_boxing_object::long_value_offset; |
| 0 | 2671 int java_lang_ref_Reference::referent_offset; |
| 2672 int java_lang_ref_Reference::queue_offset; | |
| 2673 int java_lang_ref_Reference::next_offset; | |
| 2674 int java_lang_ref_Reference::discovered_offset; | |
| 2675 int java_lang_ref_Reference::static_lock_offset; | |
| 2676 int java_lang_ref_Reference::static_pending_offset; | |
| 2677 int java_lang_ref_Reference::number_of_fake_oop_fields; | |
| 2678 int java_lang_ref_SoftReference::timestamp_offset; | |
| 2679 int java_lang_ref_SoftReference::static_clock_offset; | |
| 2680 int java_lang_ClassLoader::parent_offset; | |
| 2681 int java_lang_System::offset_of_static_fields; | |
| 2682 int java_lang_System::static_in_offset; | |
| 2683 int java_lang_System::static_out_offset; | |
| 2684 int java_lang_System::static_err_offset; | |
| 2685 int java_lang_StackTraceElement::declaringClass_offset; | |
| 2686 int java_lang_StackTraceElement::methodName_offset; | |
| 2687 int java_lang_StackTraceElement::fileName_offset; | |
| 2688 int java_lang_StackTraceElement::lineNumber_offset; | |
| 2689 int java_lang_AssertionStatusDirectives::classes_offset; | |
| 2690 int java_lang_AssertionStatusDirectives::classEnabled_offset; | |
| 2691 int java_lang_AssertionStatusDirectives::packages_offset; | |
| 2692 int java_lang_AssertionStatusDirectives::packageEnabled_offset; | |
| 2693 int java_lang_AssertionStatusDirectives::deflt_offset; | |
| 2694 int java_nio_Buffer::_limit_offset; | |
| 2695 int sun_misc_AtomicLongCSImpl::_value_offset; | |
| 2696 int java_util_concurrent_locks_AbstractOwnableSynchronizer::_owner_offset = 0; | |
| 2697 int sun_reflect_ConstantPool::_cp_oop_offset; | |
| 2698 int sun_reflect_UnsafeStaticFieldAccessorImpl::_base_offset; | |
| 2699 | |
| 2700 | |
| 2701 // Support for java_lang_StackTraceElement | |
| 2702 | |
| 2703 void java_lang_StackTraceElement::set_fileName(oop element, oop value) { | |
| 2704 element->obj_field_put(fileName_offset, value); | |
| 2705 } | |
| 2706 | |
| 2707 void java_lang_StackTraceElement::set_declaringClass(oop element, oop value) { | |
| 2708 element->obj_field_put(declaringClass_offset, value); | |
| 2709 } | |
| 2710 | |
| 2711 void java_lang_StackTraceElement::set_methodName(oop element, oop value) { | |
| 2712 element->obj_field_put(methodName_offset, value); | |
| 2713 } | |
| 2714 | |
| 2715 void java_lang_StackTraceElement::set_lineNumber(oop element, int value) { | |
| 2716 element->int_field_put(lineNumber_offset, value); | |
| 2717 } | |
| 2718 | |
| 2719 | |
| 2720 // Support for java Assertions - java_lang_AssertionStatusDirectives. | |
| 2721 | |
| 2722 void java_lang_AssertionStatusDirectives::set_classes(oop o, oop val) { | |
| 2723 o->obj_field_put(classes_offset, val); | |
| 2724 } | |
| 2725 | |
| 2726 void java_lang_AssertionStatusDirectives::set_classEnabled(oop o, oop val) { | |
| 2727 o->obj_field_put(classEnabled_offset, val); | |
| 2728 } | |
| 2729 | |
| 2730 void java_lang_AssertionStatusDirectives::set_packages(oop o, oop val) { | |
| 2731 o->obj_field_put(packages_offset, val); | |
| 2732 } | |
| 2733 | |
| 2734 void java_lang_AssertionStatusDirectives::set_packageEnabled(oop o, oop val) { | |
| 2735 o->obj_field_put(packageEnabled_offset, val); | |
| 2736 } | |
| 2737 | |
| 2738 void java_lang_AssertionStatusDirectives::set_deflt(oop o, bool val) { | |
| 2739 o->bool_field_put(deflt_offset, val); | |
| 2740 } | |
| 2741 | |
| 2742 | |
| 2743 // Support for intrinsification of java.nio.Buffer.checkIndex | |
| 2744 int java_nio_Buffer::limit_offset() { | |
| 2745 return _limit_offset; | |
| 2746 } | |
| 2747 | |
| 2748 | |
| 2749 void java_nio_Buffer::compute_offsets() { | |
| 2750 klassOop k = SystemDictionary::java_nio_Buffer_klass(); | |
|
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|
2751 assert(k != NULL, "must be loaded in 1.4+"); |
|
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|
2752 compute_offset(_limit_offset, k, vmSymbols::limit_name(), vmSymbols::int_signature()); |
| 0 | 2753 } |
| 2754 | |
| 2755 // Support for intrinsification of sun.misc.AtomicLongCSImpl.attemptUpdate | |
| 2756 int sun_misc_AtomicLongCSImpl::value_offset() { | |
| 2757 assert(SystemDictionary::sun_misc_AtomicLongCSImpl_klass() != NULL, "can't call this"); | |
| 2758 return _value_offset; | |
| 2759 } | |
| 2760 | |
| 2761 | |
| 2762 void sun_misc_AtomicLongCSImpl::compute_offsets() { | |
| 2763 klassOop k = SystemDictionary::sun_misc_AtomicLongCSImpl_klass(); | |
| 2764 // If this class is not present, its value field offset won't be referenced. | |
| 2765 if (k != NULL) { | |
|
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|
2766 compute_offset(_value_offset, k, vmSymbols::value_name(), vmSymbols::long_signature()); |
| 0 | 2767 } |
| 2768 } | |
| 2769 | |
| 2770 void java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(TRAPS) { | |
| 2771 if (_owner_offset != 0) return; | |
| 2772 | |
| 2773 assert(JDK_Version::is_gte_jdk16x_version(), "Must be JDK 1.6 or later"); | |
| 2774 SystemDictionary::load_abstract_ownable_synchronizer_klass(CHECK); | |
| 2775 klassOop k = SystemDictionary::abstract_ownable_synchronizer_klass(); | |
|
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2776 compute_offset(_owner_offset, k, |
| 0 | 2777 vmSymbols::exclusive_owner_thread_name(), vmSymbols::thread_signature()); |
| 2778 } | |
| 2779 | |
| 2780 oop java_util_concurrent_locks_AbstractOwnableSynchronizer::get_owner_threadObj(oop obj) { | |
| 2781 assert(_owner_offset != 0, "Must be initialized"); | |
| 2782 return obj->obj_field(_owner_offset); | |
| 2783 } | |
| 2784 | |
| 2785 // Compute hard-coded offsets | |
| 2786 // Invoked before SystemDictionary::initialize, so pre-loaded classes | |
| 2787 // are not available to determine the offset_of_static_fields. | |
| 2788 void JavaClasses::compute_hard_coded_offsets() { | |
|
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2789 const int x = heapOopSize; |
|
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2790 const int header = instanceOopDesc::base_offset_in_bytes(); |
| 0 | 2791 |
| 2792 // Do the String Class | |
| 2793 java_lang_String::value_offset = java_lang_String::hc_value_offset * x + header; | |
| 2794 java_lang_String::offset_offset = java_lang_String::hc_offset_offset * x + header; | |
| 2795 java_lang_String::count_offset = java_lang_String::offset_offset + sizeof (jint); | |
| 2796 java_lang_String::hash_offset = java_lang_String::count_offset + sizeof (jint); | |
| 2797 | |
| 2798 // Do the Class Class | |
| 2799 java_lang_Class::klass_offset = java_lang_Class::hc_klass_offset * x + header; | |
| 2800 java_lang_Class::array_klass_offset = java_lang_Class::hc_array_klass_offset * x + header; | |
| 2801 java_lang_Class::resolved_constructor_offset = java_lang_Class::hc_resolved_constructor_offset * x + header; | |
| 2802 | |
| 2803 // This is NOT an offset | |
| 2804 java_lang_Class::number_of_fake_oop_fields = java_lang_Class::hc_number_of_fake_oop_fields; | |
| 2805 | |
| 2806 // Throwable Class | |
| 2807 java_lang_Throwable::backtrace_offset = java_lang_Throwable::hc_backtrace_offset * x + header; | |
| 2808 java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header; | |
| 2809 java_lang_Throwable::cause_offset = java_lang_Throwable::hc_cause_offset * x + header; | |
| 2810 java_lang_Throwable::stackTrace_offset = java_lang_Throwable::hc_stackTrace_offset * x + header; | |
| 2811 | |
| 2812 // java_lang_boxing_object | |
|
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2813 java_lang_boxing_object::value_offset = java_lang_boxing_object::hc_value_offset + header; |
|
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2814 java_lang_boxing_object::long_value_offset = align_size_up((java_lang_boxing_object::hc_value_offset + header), BytesPerLong); |
| 0 | 2815 |
| 2816 // java_lang_ref_Reference: | |
| 2817 java_lang_ref_Reference::referent_offset = java_lang_ref_Reference::hc_referent_offset * x + header; | |
| 2818 java_lang_ref_Reference::queue_offset = java_lang_ref_Reference::hc_queue_offset * x + header; | |
| 2819 java_lang_ref_Reference::next_offset = java_lang_ref_Reference::hc_next_offset * x + header; | |
| 2820 java_lang_ref_Reference::discovered_offset = java_lang_ref_Reference::hc_discovered_offset * x + header; | |
| 2821 java_lang_ref_Reference::static_lock_offset = java_lang_ref_Reference::hc_static_lock_offset * x; | |
| 2822 java_lang_ref_Reference::static_pending_offset = java_lang_ref_Reference::hc_static_pending_offset * x; | |
| 2823 // Artificial fields for java_lang_ref_Reference | |
| 2824 // The first field is for the discovered field added in 1.4 | |
| 2825 java_lang_ref_Reference::number_of_fake_oop_fields = 1; | |
| 2826 | |
| 2827 // java_lang_ref_SoftReference Class | |
|
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2828 java_lang_ref_SoftReference::timestamp_offset = align_size_up((java_lang_ref_SoftReference::hc_timestamp_offset * x + header), BytesPerLong); |
| 0 | 2829 // Don't multiply static fields because they are always in wordSize units |
| 2830 java_lang_ref_SoftReference::static_clock_offset = java_lang_ref_SoftReference::hc_static_clock_offset * x; | |
| 2831 | |
| 2832 // java_lang_ClassLoader | |
| 2833 java_lang_ClassLoader::parent_offset = java_lang_ClassLoader::hc_parent_offset * x + header; | |
| 2834 | |
| 2835 // java_lang_System | |
| 2836 java_lang_System::static_in_offset = java_lang_System::hc_static_in_offset * x; | |
| 2837 java_lang_System::static_out_offset = java_lang_System::hc_static_out_offset * x; | |
| 2838 java_lang_System::static_err_offset = java_lang_System::hc_static_err_offset * x; | |
| 2839 | |
| 2840 // java_lang_StackTraceElement | |
| 2841 java_lang_StackTraceElement::declaringClass_offset = java_lang_StackTraceElement::hc_declaringClass_offset * x + header; | |
| 2842 java_lang_StackTraceElement::methodName_offset = java_lang_StackTraceElement::hc_methodName_offset * x + header; | |
| 2843 java_lang_StackTraceElement::fileName_offset = java_lang_StackTraceElement::hc_fileName_offset * x + header; | |
| 2844 java_lang_StackTraceElement::lineNumber_offset = java_lang_StackTraceElement::hc_lineNumber_offset * x + header; | |
| 2845 java_lang_AssertionStatusDirectives::classes_offset = java_lang_AssertionStatusDirectives::hc_classes_offset * x + header; | |
| 2846 java_lang_AssertionStatusDirectives::classEnabled_offset = java_lang_AssertionStatusDirectives::hc_classEnabled_offset * x + header; | |
| 2847 java_lang_AssertionStatusDirectives::packages_offset = java_lang_AssertionStatusDirectives::hc_packages_offset * x + header; | |
| 2848 java_lang_AssertionStatusDirectives::packageEnabled_offset = java_lang_AssertionStatusDirectives::hc_packageEnabled_offset * x + header; | |
| 2849 java_lang_AssertionStatusDirectives::deflt_offset = java_lang_AssertionStatusDirectives::hc_deflt_offset * x + header; | |
| 2850 | |
| 2851 } | |
| 2852 | |
| 2853 | |
| 2854 // Compute non-hard-coded field offsets of all the classes in this file | |
| 2855 void JavaClasses::compute_offsets() { | |
| 2856 | |
| 2857 java_lang_Class::compute_offsets(); | |
| 2858 java_lang_System::compute_offsets(); | |
| 2859 java_lang_Thread::compute_offsets(); | |
| 2860 java_lang_ThreadGroup::compute_offsets(); | |
| 710 | 2861 if (EnableMethodHandles) { |
| 2862 java_dyn_MethodHandle::compute_offsets(); | |
| 2863 sun_dyn_MemberName::compute_offsets(); | |
| 2864 sun_dyn_DirectMethodHandle::compute_offsets(); | |
| 2865 sun_dyn_BoundMethodHandle::compute_offsets(); | |
| 2866 sun_dyn_AdapterMethodHandle::compute_offsets(); | |
| 2867 java_dyn_MethodType::compute_offsets(); | |
| 2868 java_dyn_MethodTypeForm::compute_offsets(); | |
| 2869 } | |
|
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2870 if (EnableInvokeDynamic) { |
|
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2871 java_dyn_CallSite::compute_offsets(); |
|
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2872 } |
| 0 | 2873 java_security_AccessControlContext::compute_offsets(); |
| 2874 // Initialize reflection classes. The layouts of these classes | |
| 2875 // changed with the new reflection implementation in JDK 1.4, and | |
| 2876 // since the Universe doesn't know what JDK version it is until this | |
| 2877 // point we defer computation of these offsets until now. | |
| 2878 java_lang_reflect_AccessibleObject::compute_offsets(); | |
| 2879 java_lang_reflect_Method::compute_offsets(); | |
| 2880 java_lang_reflect_Constructor::compute_offsets(); | |
| 2881 java_lang_reflect_Field::compute_offsets(); | |
| 2882 if (JDK_Version::is_gte_jdk14x_version()) { | |
| 2883 java_nio_Buffer::compute_offsets(); | |
| 2884 } | |
| 2885 if (JDK_Version::is_gte_jdk15x_version()) { | |
| 2886 sun_reflect_ConstantPool::compute_offsets(); | |
| 2887 sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets(); | |
| 2888 } | |
| 2889 sun_misc_AtomicLongCSImpl::compute_offsets(); | |
| 710 | 2890 |
| 2891 // generated interpreter code wants to know about the offsets we just computed: | |
| 2892 AbstractAssembler::update_delayed_values(); | |
| 0 | 2893 } |
| 2894 | |
| 2895 #ifndef PRODUCT | |
| 2896 | |
| 2897 // These functions exist to assert the validity of hard-coded field offsets to guard | |
| 2898 // against changes in the class files | |
| 2899 | |
| 2900 bool JavaClasses::check_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
| 2901 EXCEPTION_MARK; | |
| 2902 fieldDescriptor fd; | |
| 2903 symbolHandle klass_sym = oopFactory::new_symbol_handle(klass_name, CATCH); | |
| 2904 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); | |
| 2905 instanceKlassHandle h_klass (THREAD, k); | |
| 2906 //instanceKlassHandle h_klass(klass); | |
| 2907 symbolHandle f_name = oopFactory::new_symbol_handle(field_name, CATCH); | |
| 2908 symbolHandle f_sig = oopFactory::new_symbol_handle(field_sig, CATCH); | |
| 2909 if (!h_klass->find_local_field(f_name(), f_sig(), &fd)) { | |
| 2910 tty->print_cr("Nonstatic field %s.%s not found", klass_name, field_name); | |
| 2911 return false; | |
| 2912 } | |
| 2913 if (fd.is_static()) { | |
| 2914 tty->print_cr("Nonstatic field %s.%s appears to be static", klass_name, field_name); | |
| 2915 return false; | |
| 2916 } | |
| 2917 if (fd.offset() == hardcoded_offset ) { | |
| 2918 return true; | |
| 2919 } else { | |
| 2920 tty->print_cr("Offset of nonstatic field %s.%s is hardcoded as %d but should really be %d.", | |
| 2921 klass_name, field_name, hardcoded_offset, fd.offset()); | |
| 2922 return false; | |
| 2923 } | |
| 2924 } | |
| 2925 | |
| 2926 | |
| 2927 bool JavaClasses::check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
| 2928 EXCEPTION_MARK; | |
| 2929 fieldDescriptor fd; | |
| 2930 symbolHandle klass_sym = oopFactory::new_symbol_handle(klass_name, CATCH); | |
| 2931 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); | |
| 2932 instanceKlassHandle h_klass (THREAD, k); | |
| 2933 symbolHandle f_name = oopFactory::new_symbol_handle(field_name, CATCH); | |
| 2934 symbolHandle f_sig = oopFactory::new_symbol_handle(field_sig, CATCH); | |
| 2935 if (!h_klass->find_local_field(f_name(), f_sig(), &fd)) { | |
| 2936 tty->print_cr("Static field %s.%s not found", klass_name, field_name); | |
| 2937 return false; | |
| 2938 } | |
| 2939 if (!fd.is_static()) { | |
| 2940 tty->print_cr("Static field %s.%s appears to be nonstatic", klass_name, field_name); | |
| 2941 return false; | |
| 2942 } | |
| 2943 if (fd.offset() == hardcoded_offset + h_klass->offset_of_static_fields()) { | |
| 2944 return true; | |
| 2945 } else { | |
| 2946 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() - h_klass->offset_of_static_fields()); | |
| 2947 return false; | |
| 2948 } | |
| 2949 } | |
| 2950 | |
| 2951 | |
|
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2952 bool JavaClasses::check_constant(const char *klass_name, int hardcoded_constant, const char *field_name, const char* field_sig) { |
|
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2953 EXCEPTION_MARK; |
|
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2954 fieldDescriptor fd; |
|
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2955 symbolHandle klass_sym = oopFactory::new_symbol_handle(klass_name, CATCH); |
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2956 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
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2957 instanceKlassHandle h_klass (THREAD, k); |
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2958 symbolHandle f_name = oopFactory::new_symbol_handle(field_name, CATCH); |
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2959 symbolHandle f_sig = oopFactory::new_symbol_handle(field_sig, CATCH); |
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2960 if (!h_klass->find_local_field(f_name(), f_sig(), &fd)) { |
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2961 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
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2962 return false; |
|
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|
2963 } |
|
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2964 if (!fd.is_static() || !fd.has_initial_value()) { |
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2965 tty->print_cr("Static field %s.%s appears to be non-constant", klass_name, field_name); |
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2966 return false; |
|
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|
2967 } |
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2968 if (!fd.initial_value_tag().is_int()) { |
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2969 tty->print_cr("Static field %s.%s is not an int", klass_name, field_name); |
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2970 return false; |
|
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2971 } |
|
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2972 jint field_value = fd.int_initial_value(); |
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2973 if (field_value == hardcoded_constant) { |
|
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2974 return true; |
|
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2975 } else { |
|
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2976 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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2977 return false; |
|
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|
2978 } |
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|
2979 } |
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2980 |
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2981 |
| 0 | 2982 // Check the hard-coded field offsets of all the classes in this file |
| 2983 | |
| 2984 void JavaClasses::check_offsets() { | |
| 2985 bool valid = true; | |
| 2986 | |
| 2987 #define CHECK_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ | |
| 2988 valid &= check_offset(klass_name, cpp_klass_name :: field_name ## _offset, #field_name, field_sig) | |
| 2989 | |
|
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2990 #define CHECK_LONG_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
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2991 valid &= check_offset(klass_name, cpp_klass_name :: long_ ## field_name ## _offset, #field_name, field_sig) |
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2992 |
| 0 | 2993 #define CHECK_STATIC_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
| 2994 valid &= check_static_offset(klass_name, cpp_klass_name :: static_ ## field_name ## _offset, #field_name, field_sig) | |
| 2995 | |
|
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2996 #define CHECK_CONSTANT(klass_name, cpp_klass_name, field_name, field_sig) \ |
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2997 valid &= check_constant(klass_name, cpp_klass_name :: field_name, #field_name, field_sig) |
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2998 |
| 0 | 2999 // java.lang.String |
| 3000 | |
| 3001 CHECK_OFFSET("java/lang/String", java_lang_String, value, "[C"); | |
| 3002 CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I"); | |
| 3003 CHECK_OFFSET("java/lang/String", java_lang_String, count, "I"); | |
| 3004 CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I"); | |
| 3005 | |
| 3006 // java.lang.Class | |
| 3007 | |
| 3008 // Fake fields | |
| 3009 // CHECK_OFFSET("java/lang/Class", java_lang_Class, klass); // %%% this needs to be checked | |
| 3010 // CHECK_OFFSET("java/lang/Class", java_lang_Class, array_klass); // %%% this needs to be checked | |
| 3011 // CHECK_OFFSET("java/lang/Class", java_lang_Class, resolved_constructor); // %%% this needs to be checked | |
| 3012 | |
| 3013 // java.lang.Throwable | |
| 3014 | |
| 3015 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, backtrace, "Ljava/lang/Object;"); | |
| 3016 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, detailMessage, "Ljava/lang/String;"); | |
| 3017 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, cause, "Ljava/lang/Throwable;"); | |
| 3018 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, stackTrace, "[Ljava/lang/StackTraceElement;"); | |
| 3019 | |
| 3020 // Boxed primitive objects (java_lang_boxing_object) | |
| 3021 | |
| 3022 CHECK_OFFSET("java/lang/Boolean", java_lang_boxing_object, value, "Z"); | |
| 3023 CHECK_OFFSET("java/lang/Character", java_lang_boxing_object, value, "C"); | |
| 3024 CHECK_OFFSET("java/lang/Float", java_lang_boxing_object, value, "F"); | |
|
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3025 CHECK_LONG_OFFSET("java/lang/Double", java_lang_boxing_object, value, "D"); |
| 0 | 3026 CHECK_OFFSET("java/lang/Byte", java_lang_boxing_object, value, "B"); |
| 3027 CHECK_OFFSET("java/lang/Short", java_lang_boxing_object, value, "S"); | |
| 3028 CHECK_OFFSET("java/lang/Integer", java_lang_boxing_object, value, "I"); | |
|
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3029 CHECK_LONG_OFFSET("java/lang/Long", java_lang_boxing_object, value, "J"); |
| 0 | 3030 |
| 3031 // java.lang.ClassLoader | |
| 3032 | |
| 3033 CHECK_OFFSET("java/lang/ClassLoader", java_lang_ClassLoader, parent, "Ljava/lang/ClassLoader;"); | |
| 3034 | |
| 3035 // java.lang.System | |
| 3036 | |
| 3037 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, in, "Ljava/io/InputStream;"); | |
| 3038 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, out, "Ljava/io/PrintStream;"); | |
| 3039 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, err, "Ljava/io/PrintStream;"); | |
| 3040 | |
| 3041 // java.lang.StackTraceElement | |
| 3042 | |
| 3043 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClass, "Ljava/lang/String;"); | |
| 3044 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, methodName, "Ljava/lang/String;"); | |
| 3045 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, fileName, "Ljava/lang/String;"); | |
| 3046 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, lineNumber, "I"); | |
| 3047 | |
| 3048 // java.lang.ref.Reference | |
| 3049 | |
| 3050 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, referent, "Ljava/lang/Object;"); | |
| 3051 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, queue, "Ljava/lang/ref/ReferenceQueue;"); | |
| 3052 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, next, "Ljava/lang/ref/Reference;"); | |
| 3053 // Fake field | |
| 3054 //CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, discovered, "Ljava/lang/ref/Reference;"); | |
| 3055 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, lock, "Ljava/lang/ref/Reference$Lock;"); | |
| 3056 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, pending, "Ljava/lang/ref/Reference;"); | |
| 3057 | |
| 3058 // java.lang.ref.SoftReference | |
| 3059 | |
| 3060 CHECK_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, timestamp, "J"); | |
| 3061 CHECK_STATIC_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, clock, "J"); | |
| 3062 | |
| 3063 // java.lang.AssertionStatusDirectives | |
| 3064 // | |
| 3065 // The CheckAssertionStatusDirectives boolean can be removed from here and | |
| 3066 // globals.hpp after the AssertionStatusDirectives class has been integrated | |
| 3067 // into merlin "for some time." Without it, the vm will fail with early | |
| 3068 // merlin builds. | |
| 3069 | |
| 3070 if (CheckAssertionStatusDirectives && JDK_Version::is_gte_jdk14x_version()) { | |
| 3071 const char* nm = "java/lang/AssertionStatusDirectives"; | |
| 3072 const char* sig = "[Ljava/lang/String;"; | |
| 3073 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classes, sig); | |
| 3074 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classEnabled, "[Z"); | |
| 3075 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packages, sig); | |
| 3076 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packageEnabled, "[Z"); | |
| 3077 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, deflt, "Z"); | |
| 3078 } | |
| 3079 | |
| 3080 if (!valid) vm_exit_during_initialization("Hard-coded field offset verification failed"); | |
| 3081 } | |
| 3082 | |
| 3083 #endif // PRODUCT | |
| 3084 | |
| 3085 void javaClasses_init() { | |
| 3086 JavaClasses::compute_offsets(); | |
| 3087 JavaClasses::check_offsets(); | |
| 3088 FilteredFieldsMap::initialize(); // must be done after computing offsets. | |
| 3089 } |