src/share/vm/classfile/javaClasses.cpp

Wed, 09 Jul 2014 22:37:48 -0400

author
coleenp
date
Wed, 09 Jul 2014 22:37:48 -0400
changeset 9970
f614bd5c9561
parent 9858
b985cbb00e68
child 10015
eb7ce841ccec
permissions
-rw-r--r--

8048933: -XX:+TraceExceptions output should include the message
Summary: Add the exception detail message to the tracing output
Reviewed-by: minqi, dholmes

duke@435 1 /*
kbarrett@9099 2 * Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved.
duke@435 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435 4 *
duke@435 5 * This code is free software; you can redistribute it and/or modify it
duke@435 6 * under the terms of the GNU General Public License version 2 only, as
duke@435 7 * published by the Free Software Foundation.
duke@435 8 *
duke@435 9 * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435 12 * version 2 for more details (a copy is included in the LICENSE file that
duke@435 13 * accompanied this code).
duke@435 14 *
duke@435 15 * You should have received a copy of the GNU General Public License version
duke@435 16 * 2 along with this work; if not, write to the Free Software Foundation,
duke@435 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435 18 *
trims@1907 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907 20 * or visit www.oracle.com if you need additional information or have any
trims@1907 21 * questions.
duke@435 22 *
duke@435 23 */
duke@435 24
stefank@2314 25 #include "precompiled.hpp"
coleenp@3865 26 #include "classfile/altHashing.hpp"
stefank@2314 27 #include "classfile/javaClasses.hpp"
stefank@2314 28 #include "classfile/symbolTable.hpp"
stefank@2314 29 #include "classfile/vmSymbols.hpp"
stefank@2314 30 #include "code/debugInfo.hpp"
stefank@2314 31 #include "code/pcDesc.hpp"
twisti@3100 32 #include "compiler/compilerOracle.hpp"
stefank@2314 33 #include "interpreter/interpreter.hpp"
stefank@2314 34 #include "memory/oopFactory.hpp"
stefank@2314 35 #include "memory/resourceArea.hpp"
stefank@2314 36 #include "memory/universe.inline.hpp"
never@3137 37 #include "oops/fieldStreams.hpp"
stefank@2314 38 #include "oops/instanceKlass.hpp"
never@2658 39 #include "oops/instanceMirrorKlass.hpp"
stefank@2314 40 #include "oops/klass.hpp"
coleenp@4037 41 #include "oops/method.hpp"
coleenp@2497 42 #include "oops/symbol.hpp"
stefank@2314 43 #include "oops/typeArrayOop.hpp"
coleenp@7391 44 #include "prims/jvmtiRedefineClassesTrace.hpp"
stefank@2314 45 #include "runtime/fieldDescriptor.hpp"
stefank@2314 46 #include "runtime/handles.inline.hpp"
stefank@2314 47 #include "runtime/interfaceSupport.hpp"
stefank@2314 48 #include "runtime/java.hpp"
stefank@2314 49 #include "runtime/javaCalls.hpp"
stefank@2314 50 #include "runtime/safepoint.hpp"
stefank@4299 51 #include "runtime/thread.inline.hpp"
stefank@2314 52 #include "runtime/vframe.hpp"
stefank@2314 53 #include "utilities/preserveException.hpp"
duke@435 54
drchase@6680 55 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC
drchase@6680 56
never@3137 57 #define INJECTED_FIELD_COMPUTE_OFFSET(klass, name, signature, may_be_java) \
never@3137 58 klass::_##name##_offset = JavaClasses::compute_injected_offset(JavaClasses::klass##_##name##_enum);
never@3137 59
never@3137 60 #define DECLARE_INJECTED_FIELD(klass, name, signature, may_be_java) \
never@3137 61 { SystemDictionary::WK_KLASS_ENUM_NAME(klass), vmSymbols::VM_SYMBOL_ENUM_NAME(name##_name), vmSymbols::VM_SYMBOL_ENUM_NAME(signature), may_be_java },
never@3137 62
never@3137 63 InjectedField JavaClasses::_injected_fields[] = {
never@3137 64 ALL_INJECTED_FIELDS(DECLARE_INJECTED_FIELD)
never@3137 65 };
never@3137 66
never@3137 67 int JavaClasses::compute_injected_offset(InjectedFieldID id) {
never@3137 68 return _injected_fields[id].compute_offset();
never@3137 69 }
never@3137 70
never@3137 71
never@3137 72 InjectedField* JavaClasses::get_injected(Symbol* class_name, int* field_count) {
never@3137 73 *field_count = 0;
never@3137 74
never@3137 75 vmSymbols::SID sid = vmSymbols::find_sid(class_name);
never@3137 76 if (sid == vmSymbols::NO_SID) {
never@3137 77 // Only well known classes can inject fields
never@3137 78 return NULL;
never@3137 79 }
never@3137 80
never@3137 81 int count = 0;
never@3137 82 int start = -1;
never@3137 83
never@3137 84 #define LOOKUP_INJECTED_FIELD(klass, name, signature, may_be_java) \
never@3137 85 if (sid == vmSymbols::VM_SYMBOL_ENUM_NAME(klass)) { \
never@3137 86 count++; \
never@3137 87 if (start == -1) start = klass##_##name##_enum; \
never@3137 88 }
never@3137 89 ALL_INJECTED_FIELDS(LOOKUP_INJECTED_FIELD);
never@3137 90 #undef LOOKUP_INJECTED_FIELD
never@3137 91
never@3137 92 if (start != -1) {
never@3137 93 *field_count = count;
never@3137 94 return _injected_fields + start;
never@3137 95 }
never@3137 96 return NULL;
never@3137 97 }
never@3137 98
never@3137 99
coleenp@4037 100 static bool find_field(InstanceKlass* ik,
coleenp@2497 101 Symbol* name_symbol, Symbol* signature_symbol,
jrose@1145 102 fieldDescriptor* fd,
jrose@1145 103 bool allow_super = false) {
jrose@1145 104 if (allow_super)
jrose@1145 105 return ik->find_field(name_symbol, signature_symbol, fd) != NULL;
jrose@1145 106 else
jrose@1145 107 return ik->find_local_field(name_symbol, signature_symbol, fd);
jrose@1145 108 }
jrose@1145 109
jrose@567 110 // Helpful routine for computing field offsets at run time rather than hardcoding them
jrose@567 111 static void
jrose@567 112 compute_offset(int &dest_offset,
coleenp@4037 113 Klass* klass_oop, Symbol* name_symbol, Symbol* signature_symbol,
jrose@1145 114 bool allow_super = false) {
jrose@567 115 fieldDescriptor fd;
coleenp@4037 116 InstanceKlass* ik = InstanceKlass::cast(klass_oop);
jrose@1145 117 if (!find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) {
jrose@567 118 ResourceMark rm;
jrose@567 119 tty->print_cr("Invalid layout of %s at %s", ik->external_name(), name_symbol->as_C_string());
twisti@3969 120 #ifndef PRODUCT
twisti@3969 121 klass_oop->print();
twisti@3969 122 tty->print_cr("all fields:");
coleenp@4037 123 for (AllFieldStream fs(InstanceKlass::cast(klass_oop)); !fs.done(); fs.next()) {
twisti@3969 124 tty->print_cr(" name: %s, sig: %s, flags: %08x", fs.name()->as_C_string(), fs.signature()->as_C_string(), fs.access_flags().as_int());
twisti@3969 125 }
twisti@3969 126 #endif //PRODUCT
dbuck@7788 127 vm_exit_during_initialization("Invalid layout of preloaded class: use -XX:+TraceClassLoading to see the origin of the problem class");
jrose@567 128 }
jrose@567 129 dest_offset = fd.offset();
duke@435 130 }
duke@435 131
duke@435 132 // Same as above but for "optional" offsets that might not be present in certain JDK versions
jrose@567 133 static void
jrose@567 134 compute_optional_offset(int& dest_offset,
coleenp@4037 135 Klass* klass_oop, Symbol* name_symbol, Symbol* signature_symbol,
jrose@1145 136 bool allow_super = false) {
jrose@567 137 fieldDescriptor fd;
coleenp@4037 138 InstanceKlass* ik = InstanceKlass::cast(klass_oop);
jrose@1145 139 if (find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) {
jrose@567 140 dest_offset = fd.offset();
jrose@567 141 }
duke@435 142 }
duke@435 143
jrose@1145 144
kvn@3760 145 int java_lang_String::value_offset = 0;
kvn@3760 146 int java_lang_String::offset_offset = 0;
kvn@3760 147 int java_lang_String::count_offset = 0;
kvn@3760 148 int java_lang_String::hash_offset = 0;
kvn@3760 149
kvn@3760 150 bool java_lang_String::initialized = false;
kvn@3760 151
kvn@3760 152 void java_lang_String::compute_offsets() {
kvn@3760 153 assert(!initialized, "offsets should be initialized only once");
kvn@3760 154
coleenp@4037 155 Klass* k = SystemDictionary::String_klass();
kvn@3760 156 compute_offset(value_offset, k, vmSymbols::value_name(), vmSymbols::char_array_signature());
kvn@3760 157 compute_optional_offset(offset_offset, k, vmSymbols::offset_name(), vmSymbols::int_signature());
kvn@3760 158 compute_optional_offset(count_offset, k, vmSymbols::count_name(), vmSymbols::int_signature());
kvn@3760 159 compute_optional_offset(hash_offset, k, vmSymbols::hash_name(), vmSymbols::int_signature());
kvn@3760 160
kvn@3760 161 initialized = true;
kvn@3760 162 }
kvn@3760 163
coleenp@4037 164 Handle java_lang_String::basic_create(int length, TRAPS) {
kvn@3760 165 assert(initialized, "Must be initialized");
duke@435 166 // Create the String object first, so there's a chance that the String
duke@435 167 // and the char array it points to end up in the same cache line.
duke@435 168 oop obj;
coleenp@4037 169 obj = InstanceKlass::cast(SystemDictionary::String_klass())->allocate_instance(CHECK_NH);
duke@435 170
duke@435 171 // Create the char array. The String object must be handlized here
duke@435 172 // because GC can happen as a result of the allocation attempt.
duke@435 173 Handle h_obj(THREAD, obj);
duke@435 174 typeArrayOop buffer;
duke@435 175 buffer = oopFactory::new_charArray(length, CHECK_NH);
duke@435 176
duke@435 177 // Point the String at the char array
duke@435 178 obj = h_obj();
duke@435 179 set_value(obj, buffer);
duke@435 180 // No need to zero the offset, allocation zero'ed the entire String object
duke@435 181 assert(offset(obj) == 0, "initial String offset should be zero");
duke@435 182 //set_offset(obj, 0);
duke@435 183 set_count(obj, length);
duke@435 184
duke@435 185 return h_obj;
duke@435 186 }
duke@435 187
coleenp@4037 188 Handle java_lang_String::create_from_unicode(jchar* unicode, int length, TRAPS) {
coleenp@4037 189 Handle h_obj = basic_create(length, CHECK_NH);
duke@435 190 typeArrayOop buffer = value(h_obj());
duke@435 191 for (int index = 0; index < length; index++) {
duke@435 192 buffer->char_at_put(index, unicode[index]);
duke@435 193 }
duke@435 194 return h_obj;
duke@435 195 }
duke@435 196
duke@435 197 oop java_lang_String::create_oop_from_unicode(jchar* unicode, int length, TRAPS) {
coleenp@4037 198 Handle h_obj = create_from_unicode(unicode, length, CHECK_0);
duke@435 199 return h_obj();
duke@435 200 }
duke@435 201
duke@435 202 Handle java_lang_String::create_from_str(const char* utf8_str, TRAPS) {
duke@435 203 if (utf8_str == NULL) {
duke@435 204 return Handle();
duke@435 205 }
duke@435 206 int length = UTF8::unicode_length(utf8_str);
coleenp@4037 207 Handle h_obj = basic_create(length, CHECK_NH);
duke@435 208 if (length > 0) {
duke@435 209 UTF8::convert_to_unicode(utf8_str, value(h_obj())->char_at_addr(0), length);
duke@435 210 }
duke@435 211 return h_obj;
duke@435 212 }
duke@435 213
duke@435 214 oop java_lang_String::create_oop_from_str(const char* utf8_str, TRAPS) {
duke@435 215 Handle h_obj = create_from_str(utf8_str, CHECK_0);
duke@435 216 return h_obj();
duke@435 217 }
duke@435 218
coleenp@2497 219 Handle java_lang_String::create_from_symbol(Symbol* symbol, TRAPS) {
duke@435 220 int length = UTF8::unicode_length((char*)symbol->bytes(), symbol->utf8_length());
coleenp@4037 221 Handle h_obj = basic_create(length, CHECK_NH);
duke@435 222 if (length > 0) {
duke@435 223 UTF8::convert_to_unicode((char*)symbol->bytes(), value(h_obj())->char_at_addr(0), length);
duke@435 224 }
duke@435 225 return h_obj;
duke@435 226 }
duke@435 227
duke@435 228 // Converts a C string to a Java String based on current encoding
duke@435 229 Handle java_lang_String::create_from_platform_dependent_str(const char* str, TRAPS) {
duke@435 230 assert(str != NULL, "bad arguments");
duke@435 231
duke@435 232 typedef jstring (*to_java_string_fn_t)(JNIEnv*, const char *);
duke@435 233 static to_java_string_fn_t _to_java_string_fn = NULL;
duke@435 234
duke@435 235 if (_to_java_string_fn == NULL) {
duke@435 236 void *lib_handle = os::native_java_library();
ikrylov@2322 237 _to_java_string_fn = CAST_TO_FN_PTR(to_java_string_fn_t, os::dll_lookup(lib_handle, "NewStringPlatform"));
duke@435 238 if (_to_java_string_fn == NULL) {
duke@435 239 fatal("NewStringPlatform missing");
duke@435 240 }
duke@435 241 }
duke@435 242
duke@435 243 jstring js = NULL;
duke@435 244 { JavaThread* thread = (JavaThread*)THREAD;
duke@435 245 assert(thread->is_Java_thread(), "must be java thread");
coleenp@457 246 HandleMark hm(thread);
duke@435 247 ThreadToNativeFromVM ttn(thread);
duke@435 248 js = (_to_java_string_fn)(thread->jni_environment(), str);
duke@435 249 }
duke@435 250 return Handle(THREAD, JNIHandles::resolve(js));
duke@435 251 }
duke@435 252
coleenp@457 253 // Converts a Java String to a native C string that can be used for
coleenp@457 254 // native OS calls.
coleenp@457 255 char* java_lang_String::as_platform_dependent_str(Handle java_string, TRAPS) {
coleenp@457 256
coleenp@457 257 typedef char* (*to_platform_string_fn_t)(JNIEnv*, jstring, bool*);
coleenp@457 258 static to_platform_string_fn_t _to_platform_string_fn = NULL;
coleenp@457 259
coleenp@457 260 if (_to_platform_string_fn == NULL) {
coleenp@457 261 void *lib_handle = os::native_java_library();
ikrylov@2322 262 _to_platform_string_fn = CAST_TO_FN_PTR(to_platform_string_fn_t, os::dll_lookup(lib_handle, "GetStringPlatformChars"));
coleenp@457 263 if (_to_platform_string_fn == NULL) {
coleenp@457 264 fatal("GetStringPlatformChars missing");
coleenp@457 265 }
coleenp@457 266 }
coleenp@457 267
coleenp@457 268 char *native_platform_string;
coleenp@457 269 { JavaThread* thread = (JavaThread*)THREAD;
coleenp@457 270 assert(thread->is_Java_thread(), "must be java thread");
coleenp@457 271 JNIEnv *env = thread->jni_environment();
coleenp@457 272 jstring js = (jstring) JNIHandles::make_local(env, java_string());
coleenp@457 273 bool is_copy;
coleenp@457 274 HandleMark hm(thread);
coleenp@457 275 ThreadToNativeFromVM ttn(thread);
coleenp@457 276 native_platform_string = (_to_platform_string_fn)(env, js, &is_copy);
coleenp@457 277 assert(is_copy == JNI_TRUE, "is_copy value changed");
coleenp@457 278 JNIHandles::destroy_local(js);
coleenp@457 279 }
coleenp@457 280 return native_platform_string;
coleenp@457 281 }
coleenp@457 282
duke@435 283 Handle java_lang_String::char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS) {
duke@435 284 oop obj = java_string();
duke@435 285 // Typical usage is to convert all '/' to '.' in string.
duke@435 286 typeArrayOop value = java_lang_String::value(obj);
duke@435 287 int offset = java_lang_String::offset(obj);
duke@435 288 int length = java_lang_String::length(obj);
duke@435 289
duke@435 290 // First check if any from_char exist
duke@435 291 int index; // Declared outside, used later
duke@435 292 for (index = 0; index < length; index++) {
duke@435 293 if (value->char_at(index + offset) == from_char) {
duke@435 294 break;
duke@435 295 }
duke@435 296 }
duke@435 297 if (index == length) {
duke@435 298 // No from_char, so do not copy.
duke@435 299 return java_string;
duke@435 300 }
duke@435 301
duke@435 302 // Create new UNICODE buffer. Must handlize value because GC
duke@435 303 // may happen during String and char array creation.
duke@435 304 typeArrayHandle h_value(THREAD, value);
coleenp@4037 305 Handle string = basic_create(length, CHECK_NH);
duke@435 306
duke@435 307 typeArrayOop from_buffer = h_value();
duke@435 308 typeArrayOop to_buffer = java_lang_String::value(string());
duke@435 309
duke@435 310 // Copy contents
duke@435 311 for (index = 0; index < length; index++) {
duke@435 312 jchar c = from_buffer->char_at(index + offset);
duke@435 313 if (c == from_char) {
duke@435 314 c = to_char;
duke@435 315 }
duke@435 316 to_buffer->char_at_put(index, c);
duke@435 317 }
duke@435 318 return string;
duke@435 319 }
duke@435 320
hseigel@4987 321 jchar* java_lang_String::as_unicode_string(oop java_string, int& length, TRAPS) {
duke@435 322 typeArrayOop value = java_lang_String::value(java_string);
duke@435 323 int offset = java_lang_String::offset(java_string);
duke@435 324 length = java_lang_String::length(java_string);
duke@435 325
hseigel@4987 326 jchar* result = NEW_RESOURCE_ARRAY_RETURN_NULL(jchar, length);
hseigel@4987 327 if (result != NULL) {
hseigel@4987 328 for (int index = 0; index < length; index++) {
hseigel@4987 329 result[index] = value->char_at(index + offset);
hseigel@4987 330 }
hseigel@4987 331 } else {
hseigel@4987 332 THROW_MSG_0(vmSymbols::java_lang_OutOfMemoryError(), "could not allocate Unicode string");
duke@435 333 }
duke@435 334 return result;
duke@435 335 }
duke@435 336
brutisso@4335 337 unsigned int java_lang_String::hash_code(oop java_string) {
coleenp@3865 338 int length = java_lang_String::length(java_string);
brutisso@4335 339 // Zero length string will hash to zero with String.hashCode() function.
coleenp@3865 340 if (length == 0) return 0;
coleenp@3865 341
never@2700 342 typeArrayOop value = java_lang_String::value(java_string);
never@2700 343 int offset = java_lang_String::offset(java_string);
brutisso@4335 344 return java_lang_String::hash_code(value->char_at_addr(offset), length);
coleenp@3865 345 }
coleenp@3865 346
minqi@4267 347 char* java_lang_String::as_quoted_ascii(oop java_string) {
minqi@4267 348 typeArrayOop value = java_lang_String::value(java_string);
minqi@4267 349 int offset = java_lang_String::offset(java_string);
minqi@4267 350 int length = java_lang_String::length(java_string);
minqi@4267 351
minqi@4267 352 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset);
minqi@4267 353 if (base == NULL) return NULL;
minqi@4267 354
minqi@4267 355 int result_length = UNICODE::quoted_ascii_length(base, length) + 1;
minqi@4267 356 char* result = NEW_RESOURCE_ARRAY(char, result_length);
minqi@4267 357 UNICODE::as_quoted_ascii(base, length, result, result_length);
minqi@4267 358 assert(result_length >= length + 1, "must not be shorter");
minqi@4267 359 assert(result_length == (int)strlen(result) + 1, "must match");
minqi@4267 360 return result;
minqi@4267 361 }
minqi@4267 362
coleenp@3865 363 unsigned int java_lang_String::hash_string(oop java_string) {
never@2700 364 int length = java_lang_String::length(java_string);
coleenp@3865 365 // Zero length string doesn't hash necessarily hash to zero.
coleenp@3865 366 if (length == 0) {
coleenp@3865 367 return StringTable::hash_string(NULL, 0);
coleenp@3865 368 }
coleenp@3865 369
coleenp@3865 370 typeArrayOop value = java_lang_String::value(java_string);
coleenp@3865 371 int offset = java_lang_String::offset(java_string);
coleenp@3865 372 return StringTable::hash_string(value->char_at_addr(offset), length);
never@2700 373 }
never@2700 374
coleenp@2497 375 Symbol* java_lang_String::as_symbol(Handle java_string, TRAPS) {
duke@435 376 oop obj = java_string();
duke@435 377 typeArrayOop value = java_lang_String::value(obj);
duke@435 378 int offset = java_lang_String::offset(obj);
duke@435 379 int length = java_lang_String::length(obj);
twisti@1384 380 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset);
coleenp@2497 381 Symbol* sym = SymbolTable::lookup_unicode(base, length, THREAD);
coleenp@2497 382 return sym;
duke@435 383 }
duke@435 384
coleenp@2497 385 Symbol* java_lang_String::as_symbol_or_null(oop java_string) {
jrose@1100 386 typeArrayOop value = java_lang_String::value(java_string);
jrose@1100 387 int offset = java_lang_String::offset(java_string);
jrose@1100 388 int length = java_lang_String::length(java_string);
twisti@1384 389 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset);
jrose@1100 390 return SymbolTable::probe_unicode(base, length);
jrose@1100 391 }
jrose@1100 392
jrose@1100 393
duke@435 394 int java_lang_String::utf8_length(oop java_string) {
duke@435 395 typeArrayOop value = java_lang_String::value(java_string);
duke@435 396 int offset = java_lang_String::offset(java_string);
duke@435 397 int length = java_lang_String::length(java_string);
duke@435 398 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset);
duke@435 399 return UNICODE::utf8_length(position, length);
duke@435 400 }
duke@435 401
duke@435 402 char* java_lang_String::as_utf8_string(oop java_string) {
duke@435 403 typeArrayOop value = java_lang_String::value(java_string);
duke@435 404 int offset = java_lang_String::offset(java_string);
duke@435 405 int length = java_lang_String::length(java_string);
duke@435 406 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset);
duke@435 407 return UNICODE::as_utf8(position, length);
duke@435 408 }
duke@435 409
sla@2331 410 char* java_lang_String::as_utf8_string(oop java_string, char* buf, int buflen) {
sla@2331 411 typeArrayOop value = java_lang_String::value(java_string);
sla@2331 412 int offset = java_lang_String::offset(java_string);
sla@2331 413 int length = java_lang_String::length(java_string);
sla@2331 414 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset);
sla@2331 415 return UNICODE::as_utf8(position, length, buf, buflen);
sla@2331 416 }
sla@2331 417
duke@435 418 char* java_lang_String::as_utf8_string(oop java_string, int start, int len) {
duke@435 419 typeArrayOop value = java_lang_String::value(java_string);
duke@435 420 int offset = java_lang_String::offset(java_string);
duke@435 421 int length = java_lang_String::length(java_string);
duke@435 422 assert(start + len <= length, "just checking");
duke@435 423 jchar* position = value->char_at_addr(offset + start);
duke@435 424 return UNICODE::as_utf8(position, len);
duke@435 425 }
duke@435 426
duke@435 427 bool java_lang_String::equals(oop java_string, jchar* chars, int len) {
coleenp@4178 428 assert(java_string->klass() == SystemDictionary::String_klass(),
duke@435 429 "must be java_string");
duke@435 430 typeArrayOop value = java_lang_String::value(java_string);
duke@435 431 int offset = java_lang_String::offset(java_string);
duke@435 432 int length = java_lang_String::length(java_string);
duke@435 433 if (length != len) {
duke@435 434 return false;
duke@435 435 }
duke@435 436 for (int i = 0; i < len; i++) {
duke@435 437 if (value->char_at(i + offset) != chars[i]) {
duke@435 438 return false;
duke@435 439 }
duke@435 440 }
duke@435 441 return true;
duke@435 442 }
duke@435 443
dcubed@5743 444 bool java_lang_String::equals(oop str1, oop str2) {
dcubed@5743 445 assert(str1->klass() == SystemDictionary::String_klass(),
dcubed@5743 446 "must be java String");
dcubed@5743 447 assert(str2->klass() == SystemDictionary::String_klass(),
dcubed@5743 448 "must be java String");
dcubed@5743 449 typeArrayOop value1 = java_lang_String::value(str1);
dcubed@5743 450 int offset1 = java_lang_String::offset(str1);
dcubed@5743 451 int length1 = java_lang_String::length(str1);
dcubed@5743 452 typeArrayOop value2 = java_lang_String::value(str2);
dcubed@5743 453 int offset2 = java_lang_String::offset(str2);
dcubed@5743 454 int length2 = java_lang_String::length(str2);
dcubed@5743 455
dcubed@5743 456 if (length1 != length2) {
dcubed@5743 457 return false;
dcubed@5743 458 }
dcubed@5743 459 for (int i = 0; i < length1; i++) {
dcubed@5743 460 if (value1->char_at(i + offset1) != value2->char_at(i + offset2)) {
dcubed@5743 461 return false;
dcubed@5743 462 }
dcubed@5743 463 }
dcubed@5743 464 return true;
dcubed@5743 465 }
dcubed@5743 466
stefank@6975 467 void java_lang_String::print(oop java_string, outputStream* st) {
stefank@6975 468 assert(java_string->klass() == SystemDictionary::String_klass(), "must be java_string");
stefank@6975 469 typeArrayOop value = java_lang_String::value(java_string);
stefank@6975 470 int offset = java_lang_String::offset(java_string);
stefank@6975 471 int length = java_lang_String::length(java_string);
duke@435 472
duke@435 473 int end = MIN2(length, 100);
duke@435 474 if (value == NULL) {
duke@435 475 // This can happen if, e.g., printing a String
duke@435 476 // object before its initializer has been called
duke@435 477 st->print_cr("NULL");
duke@435 478 } else {
duke@435 479 st->print("\"");
duke@435 480 for (int index = 0; index < length; index++) {
duke@435 481 st->print("%c", value->char_at(index + offset));
duke@435 482 }
duke@435 483 st->print("\"");
duke@435 484 }
duke@435 485 }
duke@435 486
coleenp@6626 487
coleenp@6626 488 static void initialize_static_field(fieldDescriptor* fd, Handle mirror, TRAPS) {
never@2658 489 assert(mirror.not_null() && fd->is_static(), "just checking");
never@2658 490 if (fd->has_initial_value()) {
never@2658 491 BasicType t = fd->field_type();
never@2658 492 switch (t) {
never@2658 493 case T_BYTE:
never@2658 494 mirror()->byte_field_put(fd->offset(), fd->int_initial_value());
never@2658 495 break;
never@2658 496 case T_BOOLEAN:
never@2658 497 mirror()->bool_field_put(fd->offset(), fd->int_initial_value());
never@2658 498 break;
never@2658 499 case T_CHAR:
never@2658 500 mirror()->char_field_put(fd->offset(), fd->int_initial_value());
never@2658 501 break;
never@2658 502 case T_SHORT:
never@2658 503 mirror()->short_field_put(fd->offset(), fd->int_initial_value());
never@2658 504 break;
never@2658 505 case T_INT:
never@2658 506 mirror()->int_field_put(fd->offset(), fd->int_initial_value());
never@2658 507 break;
never@2658 508 case T_FLOAT:
never@2658 509 mirror()->float_field_put(fd->offset(), fd->float_initial_value());
never@2658 510 break;
never@2658 511 case T_DOUBLE:
never@2658 512 mirror()->double_field_put(fd->offset(), fd->double_initial_value());
never@2658 513 break;
never@2658 514 case T_LONG:
never@2658 515 mirror()->long_field_put(fd->offset(), fd->long_initial_value());
never@2658 516 break;
never@2658 517 case T_OBJECT:
never@2658 518 {
never@2658 519 #ifdef ASSERT
never@2658 520 TempNewSymbol sym = SymbolTable::new_symbol("Ljava/lang/String;", CHECK);
never@2658 521 assert(fd->signature() == sym, "just checking");
never@2658 522 #endif
never@2658 523 oop string = fd->string_initial_value(CHECK);
never@2658 524 mirror()->obj_field_put(fd->offset(), string);
never@2658 525 }
never@2658 526 break;
never@2658 527 default:
never@2658 528 THROW_MSG(vmSymbols::java_lang_ClassFormatError(),
never@2658 529 "Illegal ConstantValue attribute in class file");
never@2658 530 }
never@2658 531 }
never@2658 532 }
never@2658 533
never@2658 534
never@2658 535 void java_lang_Class::fixup_mirror(KlassHandle k, TRAPS) {
coleenp@4047 536 assert(InstanceMirrorKlass::offset_of_static_fields() != 0, "must have been computed already");
never@2658 537
coleenp@4037 538 // If the offset was read from the shared archive, it was fixed up already
coleenp@4037 539 if (!k->is_shared()) {
coleenp@5176 540 if (k->oop_is_instance()) {
coleenp@5176 541 // During bootstrap, java.lang.Class wasn't loaded so static field
coleenp@5176 542 // offsets were computed without the size added it. Go back and
coleenp@5176 543 // update all the static field offsets to included the size.
coleenp@5176 544 for (JavaFieldStream fs(InstanceKlass::cast(k())); !fs.done(); fs.next()) {
coleenp@5176 545 if (fs.access_flags().is_static()) {
coleenp@5176 546 int real_offset = fs.offset() + InstanceMirrorKlass::offset_of_static_fields();
coleenp@5176 547 fs.set_offset(real_offset);
coleenp@5176 548 }
never@3137 549 }
never@3137 550 }
never@2658 551 }
coleenp@7129 552 create_mirror(k, Handle(NULL), Handle(NULL), CHECK);
never@2658 553 }
duke@435 554
coleenp@6626 555 void java_lang_Class::initialize_mirror_fields(KlassHandle k,
coleenp@6626 556 Handle mirror,
coleenp@6626 557 Handle protection_domain,
coleenp@6626 558 TRAPS) {
coleenp@6626 559 // Allocate a simple java object for a lock.
coleenp@6626 560 // This needs to be a java object because during class initialization
coleenp@6626 561 // it can be held across a java call.
coleenp@6626 562 typeArrayOop r = oopFactory::new_typeArray(T_INT, 0, CHECK);
coleenp@6626 563 set_init_lock(mirror(), r);
coleenp@6626 564
coleenp@6626 565 // Set protection domain also
coleenp@6626 566 set_protection_domain(mirror(), protection_domain());
coleenp@6626 567
coleenp@6626 568 // Initialize static fields
coleenp@6626 569 InstanceKlass::cast(k())->do_local_static_fields(&initialize_static_field, mirror, CHECK);
coleenp@6626 570 }
coleenp@6626 571
coleenp@7129 572 void java_lang_Class::create_mirror(KlassHandle k, Handle class_loader,
coleenp@7129 573 Handle protection_domain, TRAPS) {
duke@435 574 assert(k->java_mirror() == NULL, "should only assign mirror once");
duke@435 575 // Use this moment of initialization to cache modifier_flags also,
duke@435 576 // to support Class.getModifiers(). Instance classes recalculate
duke@435 577 // the cached flags after the class file is parsed, but before the
duke@435 578 // class is put into the system dictionary.
coleenp@6626 579 int computed_modifiers = k->compute_modifier_flags(CHECK);
duke@435 580 k->set_modifier_flags(computed_modifiers);
coleenp@4037 581 // Class_klass has to be loaded because it is used to allocate
coleenp@4037 582 // the mirror.
coleenp@4037 583 if (SystemDictionary::Class_klass_loaded()) {
duke@435 584 // Allocate mirror (java.lang.Class instance)
coleenp@6626 585 Handle mirror = InstanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(k, CHECK);
coleenp@6626 586
coleenp@6626 587 // Setup indirection from mirror->klass
coleenp@6626 588 if (!k.is_null()) {
coleenp@6626 589 java_lang_Class::set_klass(mirror(), k());
coleenp@6626 590 }
coleenp@4047 591
coleenp@4047 592 InstanceMirrorKlass* mk = InstanceMirrorKlass::cast(mirror->klass());
coleenp@6626 593 assert(oop_size(mirror()) == mk->instance_size(k), "should have been set");
coleenp@6626 594
never@2658 595 java_lang_Class::set_static_oop_field_count(mirror(), mk->compute_static_oop_field_count(mirror()));
never@2658 596
duke@435 597 // It might also have a component mirror. This mirror must already exist.
coleenp@4037 598 if (k->oop_is_array()) {
duke@435 599 Handle comp_mirror;
duke@435 600 if (k->oop_is_typeArray()) {
coleenp@4142 601 BasicType type = TypeArrayKlass::cast(k())->element_type();
duke@435 602 comp_mirror = Universe::java_mirror(type);
coleenp@4037 603 } else {
coleenp@4037 604 assert(k->oop_is_objArray(), "Must be");
coleenp@4142 605 Klass* element_klass = ObjArrayKlass::cast(k())->element_klass();
coleenp@4037 606 assert(element_klass != NULL, "Must have an element klass");
coleenp@6626 607 comp_mirror = element_klass->java_mirror();
duke@435 608 }
coleenp@4037 609 assert(comp_mirror.not_null(), "must have a mirror");
coleenp@4037 610
coleenp@6626 611 // Two-way link between the array klass and its component mirror:
coleenp@4142 612 ArrayKlass::cast(k())->set_component_mirror(comp_mirror());
coleenp@4037 613 set_array_klass(comp_mirror(), k());
coleenp@4037 614 } else {
coleenp@4037 615 assert(k->oop_is_instance(), "Must be");
coleenp@5176 616
coleenp@6626 617 initialize_mirror_fields(k, mirror, protection_domain, THREAD);
coleenp@6626 618 if (HAS_PENDING_EXCEPTION) {
coleenp@6626 619 // If any of the fields throws an exception like OOM remove the klass field
coleenp@6626 620 // from the mirror so GC doesn't follow it after the klass has been deallocated.
coleenp@6626 621 // This mirror looks like a primitive type, which logically it is because it
coleenp@6626 622 // it represents no class.
coleenp@6626 623 java_lang_Class::set_klass(mirror(), NULL);
coleenp@6626 624 return;
coleenp@6626 625 }
duke@435 626 }
coleenp@6626 627
coleenp@7129 628 // set the classLoader field in the java_lang_Class instance
coleenp@7226 629 assert(class_loader() == k->class_loader(), "should be same");
coleenp@7129 630 set_class_loader(mirror(), class_loader());
coleenp@7129 631
coleenp@6626 632 // Setup indirection from klass->mirror last
coleenp@6626 633 // after any exceptions can happen during allocations.
coleenp@6626 634 if (!k.is_null()) {
coleenp@6626 635 k->set_java_mirror(mirror());
coleenp@6626 636 }
duke@435 637 } else {
coleenp@4037 638 if (fixup_mirror_list() == NULL) {
coleenp@4037 639 GrowableArray<Klass*>* list =
coleenp@4037 640 new (ResourceObj::C_HEAP, mtClass) GrowableArray<Klass*>(40, true);
coleenp@4037 641 set_fixup_mirror_list(list);
coleenp@4037 642 }
coleenp@4037 643 fixup_mirror_list()->push(k());
duke@435 644 }
duke@435 645 }
duke@435 646
duke@435 647
never@2658 648 int java_lang_Class::oop_size(oop java_class) {
never@3137 649 assert(_oop_size_offset != 0, "must be set");
never@3137 650 return java_class->int_field(_oop_size_offset);
never@2658 651 }
never@2658 652 void java_lang_Class::set_oop_size(oop java_class, int size) {
never@3137 653 assert(_oop_size_offset != 0, "must be set");
never@3137 654 java_class->int_field_put(_oop_size_offset, size);
never@2658 655 }
never@2658 656 int java_lang_Class::static_oop_field_count(oop java_class) {
never@3137 657 assert(_static_oop_field_count_offset != 0, "must be set");
never@3137 658 return java_class->int_field(_static_oop_field_count_offset);
never@2658 659 }
never@2658 660 void java_lang_Class::set_static_oop_field_count(oop java_class, int size) {
never@3137 661 assert(_static_oop_field_count_offset != 0, "must be set");
never@3137 662 java_class->int_field_put(_static_oop_field_count_offset, size);
never@2658 663 }
never@2658 664
coleenp@5176 665 oop java_lang_Class::protection_domain(oop java_class) {
coleenp@5176 666 assert(_protection_domain_offset != 0, "must be set");
coleenp@5176 667 return java_class->obj_field(_protection_domain_offset);
coleenp@5176 668 }
coleenp@5176 669 void java_lang_Class::set_protection_domain(oop java_class, oop pd) {
coleenp@5176 670 assert(_protection_domain_offset != 0, "must be set");
coleenp@5176 671 java_class->obj_field_put(_protection_domain_offset, pd);
coleenp@5176 672 }
coleenp@5176 673
coleenp@5176 674 oop java_lang_Class::init_lock(oop java_class) {
coleenp@5176 675 assert(_init_lock_offset != 0, "must be set");
coleenp@5176 676 return java_class->obj_field(_init_lock_offset);
coleenp@5176 677 }
coleenp@5176 678 void java_lang_Class::set_init_lock(oop java_class, oop init_lock) {
coleenp@5176 679 assert(_init_lock_offset != 0, "must be set");
coleenp@5176 680 java_class->obj_field_put(_init_lock_offset, init_lock);
coleenp@5176 681 }
coleenp@5176 682
coleenp@5176 683 objArrayOop java_lang_Class::signers(oop java_class) {
coleenp@5176 684 assert(_signers_offset != 0, "must be set");
coleenp@5176 685 return (objArrayOop)java_class->obj_field(_signers_offset);
coleenp@5176 686 }
coleenp@5176 687 void java_lang_Class::set_signers(oop java_class, objArrayOop signers) {
coleenp@5176 688 assert(_signers_offset != 0, "must be set");
coleenp@5176 689 java_class->obj_field_put(_signers_offset, (oop)signers);
coleenp@5176 690 }
coleenp@5176 691
coleenp@5176 692
coleenp@7129 693 void java_lang_Class::set_class_loader(oop java_class, oop loader) {
coleenp@7129 694 // jdk7 runs Queens in bootstrapping and jdk8-9 has no coordinated pushes yet.
coleenp@7129 695 if (_class_loader_offset != 0) {
coleenp@7129 696 java_class->obj_field_put(_class_loader_offset, loader);
coleenp@7129 697 }
coleenp@7129 698 }
coleenp@7129 699
coleenp@7129 700 oop java_lang_Class::class_loader(oop java_class) {
coleenp@7129 701 assert(_class_loader_offset != 0, "must be set");
coleenp@7129 702 return java_class->obj_field(_class_loader_offset);
coleenp@7129 703 }
coleenp@7129 704
duke@435 705 oop java_lang_Class::create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS) {
duke@435 706 // This should be improved by adding a field at the Java level or by
duke@435 707 // introducing a new VM klass (see comment in ClassFileParser)
coleenp@4047 708 oop java_class = InstanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(NULL, CHECK_0);
duke@435 709 if (type != T_VOID) {
coleenp@4037 710 Klass* aklass = Universe::typeArrayKlassObj(type);
duke@435 711 assert(aklass != NULL, "correct bootstrap");
duke@435 712 set_array_klass(java_class, aklass);
duke@435 713 }
never@3205 714 #ifdef ASSERT
coleenp@4047 715 InstanceMirrorKlass* mk = InstanceMirrorKlass::cast(SystemDictionary::Class_klass());
never@3205 716 assert(java_lang_Class::static_oop_field_count(java_class) == 0, "should have been zeroed by allocation");
never@3205 717 #endif
duke@435 718 return java_class;
duke@435 719 }
duke@435 720
duke@435 721
coleenp@4037 722 Klass* java_lang_Class::as_Klass(oop java_class) {
duke@435 723 //%note memory_2
never@2658 724 assert(java_lang_Class::is_instance(java_class), "must be a Class object");
coleenp@4037 725 Klass* k = ((Klass*)java_class->metadata_field(_klass_offset));
duke@435 726 assert(k == NULL || k->is_klass(), "type check");
duke@435 727 return k;
duke@435 728 }
duke@435 729
duke@435 730
coleenp@4037 731 void java_lang_Class::set_klass(oop java_class, Klass* klass) {
never@3205 732 assert(java_lang_Class::is_instance(java_class), "must be a Class object");
coleenp@4037 733 java_class->metadata_field_put(_klass_offset, klass);
never@3205 734 }
never@3205 735
never@3205 736
jrose@1100 737 void java_lang_Class::print_signature(oop java_class, outputStream* st) {
jrose@1100 738 assert(java_lang_Class::is_instance(java_class), "must be a Class object");
coleenp@2497 739 Symbol* name = NULL;
jrose@1100 740 bool is_instance = false;
jrose@1100 741 if (is_primitive(java_class)) {
jrose@1100 742 name = vmSymbols::type_signature(primitive_type(java_class));
jrose@1100 743 } else {
coleenp@4037 744 Klass* k = as_Klass(java_class);
hseigel@4278 745 is_instance = k->oop_is_instance();
hseigel@4278 746 name = k->name();
jrose@1100 747 }
jrose@1100 748 if (name == NULL) {
jrose@1100 749 st->print("<null>");
jrose@1100 750 return;
jrose@1100 751 }
jrose@1100 752 if (is_instance) st->print("L");
jrose@1100 753 st->write((char*) name->base(), (int) name->utf8_length());
jrose@1100 754 if (is_instance) st->print(";");
jrose@1100 755 }
jrose@1100 756
coleenp@2497 757 Symbol* java_lang_Class::as_signature(oop java_class, bool intern_if_not_found, TRAPS) {
jrose@1100 758 assert(java_lang_Class::is_instance(java_class), "must be a Class object");
coleenp@2497 759 Symbol* name;
jrose@1100 760 if (is_primitive(java_class)) {
coleenp@2497 761 name = vmSymbols::type_signature(primitive_type(java_class));
coleenp@2497 762 // Because this can create a new symbol, the caller has to decrement
coleenp@2497 763 // the refcount, so make adjustment here and below for symbols returned
coleenp@2497 764 // that are not created or incremented due to a successful lookup.
coleenp@2497 765 name->increment_refcount();
jrose@1100 766 } else {
coleenp@4037 767 Klass* k = as_Klass(java_class);
hseigel@4278 768 if (!k->oop_is_instance()) {
hseigel@4278 769 name = k->name();
coleenp@2497 770 name->increment_refcount();
jrose@1100 771 } else {
jrose@1100 772 ResourceMark rm;
hseigel@4278 773 const char* sigstr = k->signature_name();
jrose@1100 774 int siglen = (int) strlen(sigstr);
coleenp@2497 775 if (!intern_if_not_found) {
coleenp@2497 776 name = SymbolTable::probe(sigstr, siglen);
coleenp@2497 777 } else {
coleenp@2497 778 name = SymbolTable::new_symbol(sigstr, siglen, THREAD);
coleenp@2497 779 }
jrose@1100 780 }
jrose@1100 781 }
coleenp@2497 782 return name;
jrose@1100 783 }
jrose@1100 784
vkempik@8060 785 // Returns the Java name for this Java mirror (Resource allocated)
vkempik@8060 786 // See Klass::external_name().
vkempik@8060 787 // For primitive type Java mirrors, its type name is returned.
vkempik@8060 788 const char* java_lang_Class::as_external_name(oop java_class) {
vkempik@8060 789 assert(java_lang_Class::is_instance(java_class), "must be a Class object");
vkempik@8060 790 const char* name = NULL;
vkempik@8060 791 if (is_primitive(java_class)) {
vkempik@8060 792 name = type2name(primitive_type(java_class));
vkempik@8060 793 } else {
vkempik@8060 794 name = as_Klass(java_class)->external_name();
vkempik@8060 795 }
vkempik@8060 796 if (name == NULL) {
vkempik@8060 797 name = "<null>";
vkempik@8060 798 }
vkempik@8060 799 return name;
vkempik@8060 800 }
jrose@1100 801
coleenp@4037 802 Klass* java_lang_Class::array_klass(oop java_class) {
coleenp@4037 803 Klass* k = ((Klass*)java_class->metadata_field(_array_klass_offset));
hseigel@4278 804 assert(k == NULL || k->is_klass() && k->oop_is_array(), "should be array klass");
duke@435 805 return k;
duke@435 806 }
duke@435 807
duke@435 808
coleenp@4037 809 void java_lang_Class::set_array_klass(oop java_class, Klass* klass) {
hseigel@4278 810 assert(klass->is_klass() && klass->oop_is_array(), "should be array klass");
coleenp@4037 811 java_class->metadata_field_put(_array_klass_offset, klass);
duke@435 812 }
duke@435 813
duke@435 814
duke@435 815 bool java_lang_Class::is_primitive(oop java_class) {
jrose@1100 816 // should assert:
jrose@1100 817 //assert(java_lang_Class::is_instance(java_class), "must be a Class object");
coleenp@4037 818 bool is_primitive = (java_class->metadata_field(_klass_offset) == NULL);
coleenp@4037 819
coleenp@4037 820 #ifdef ASSERT
coleenp@4037 821 if (is_primitive) {
coleenp@4037 822 Klass* k = ((Klass*)java_class->metadata_field(_array_klass_offset));
coleenp@4142 823 assert(k == NULL || is_java_primitive(ArrayKlass::cast(k)->element_type()),
coleenp@4037 824 "Should be either the T_VOID primitive or a java primitive");
coleenp@4037 825 }
coleenp@4037 826 #endif
coleenp@4037 827
coleenp@4037 828 return is_primitive;
duke@435 829 }
duke@435 830
duke@435 831
duke@435 832 BasicType java_lang_Class::primitive_type(oop java_class) {
duke@435 833 assert(java_lang_Class::is_primitive(java_class), "just checking");
coleenp@4037 834 Klass* ak = ((Klass*)java_class->metadata_field(_array_klass_offset));
duke@435 835 BasicType type = T_VOID;
duke@435 836 if (ak != NULL) {
duke@435 837 // Note: create_basic_type_mirror above initializes ak to a non-null value.
coleenp@4142 838 type = ArrayKlass::cast(ak)->element_type();
duke@435 839 } else {
duke@435 840 assert(java_class == Universe::void_mirror(), "only valid non-array primitive");
duke@435 841 }
duke@435 842 assert(Universe::java_mirror(type) == java_class, "must be consistent");
duke@435 843 return type;
duke@435 844 }
duke@435 845
coleenp@4037 846 BasicType java_lang_Class::as_BasicType(oop java_class, Klass** reference_klass) {
jrose@1100 847 assert(java_lang_Class::is_instance(java_class), "must be a Class object");
jrose@1100 848 if (is_primitive(java_class)) {
jrose@1100 849 if (reference_klass != NULL)
jrose@1100 850 (*reference_klass) = NULL;
jrose@1100 851 return primitive_type(java_class);
jrose@1100 852 } else {
jrose@1100 853 if (reference_klass != NULL)
coleenp@4037 854 (*reference_klass) = as_Klass(java_class);
jrose@1100 855 return T_OBJECT;
jrose@1100 856 }
jrose@1100 857 }
jrose@1100 858
duke@435 859
duke@435 860 oop java_lang_Class::primitive_mirror(BasicType t) {
duke@435 861 oop mirror = Universe::java_mirror(t);
never@1577 862 assert(mirror != NULL && mirror->is_a(SystemDictionary::Class_klass()), "must be a Class");
duke@435 863 assert(java_lang_Class::is_primitive(mirror), "must be primitive");
duke@435 864 return mirror;
duke@435 865 }
duke@435 866
duke@435 867 bool java_lang_Class::offsets_computed = false;
duke@435 868 int java_lang_Class::classRedefinedCount_offset = -1;
duke@435 869
duke@435 870 void java_lang_Class::compute_offsets() {
duke@435 871 assert(!offsets_computed, "offsets should be initialized only once");
duke@435 872 offsets_computed = true;
duke@435 873
coleenp@4037 874 Klass* klass_oop = SystemDictionary::Class_klass();
duke@435 875 // The classRedefinedCount field is only present starting in 1.5,
duke@435 876 // so don't go fatal.
jrose@567 877 compute_optional_offset(classRedefinedCount_offset,
never@3137 878 klass_oop, vmSymbols::classRedefinedCount_name(), vmSymbols::int_signature());
never@3137 879
coleenp@7129 880 // Needs to be optional because the old build runs Queens during bootstrapping
coleenp@7129 881 // and jdk8-9 doesn't have coordinated pushes yet.
coleenp@7129 882 compute_optional_offset(_class_loader_offset,
coleenp@7129 883 klass_oop, vmSymbols::classLoader_name(),
coleenp@7129 884 vmSymbols::classloader_signature());
coleenp@7129 885
never@3137 886 CLASS_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET);
duke@435 887 }
duke@435 888
duke@435 889 int java_lang_Class::classRedefinedCount(oop the_class_mirror) {
duke@435 890 if (!JDK_Version::is_gte_jdk15x_version()
duke@435 891 || classRedefinedCount_offset == -1) {
duke@435 892 // The classRedefinedCount field is only present starting in 1.5.
duke@435 893 // If we don't have an offset for it then just return -1 as a marker.
duke@435 894 return -1;
duke@435 895 }
duke@435 896
duke@435 897 return the_class_mirror->int_field(classRedefinedCount_offset);
duke@435 898 }
duke@435 899
duke@435 900 void java_lang_Class::set_classRedefinedCount(oop the_class_mirror, int value) {
duke@435 901 if (!JDK_Version::is_gte_jdk15x_version()
duke@435 902 || classRedefinedCount_offset == -1) {
duke@435 903 // The classRedefinedCount field is only present starting in 1.5.
duke@435 904 // If we don't have an offset for it then nothing to set.
duke@435 905 return;
duke@435 906 }
duke@435 907
duke@435 908 the_class_mirror->int_field_put(classRedefinedCount_offset, value);
duke@435 909 }
duke@435 910
duke@435 911
duke@435 912 // Note: JDK1.1 and before had a privateInfo_offset field which was used for the
duke@435 913 // platform thread structure, and a eetop offset which was used for thread
duke@435 914 // local storage (and unused by the HotSpot VM). In JDK1.2 the two structures
duke@435 915 // merged, so in the HotSpot VM we just use the eetop field for the thread
duke@435 916 // instead of the privateInfo_offset.
duke@435 917 //
duke@435 918 // Note: The stackSize field is only present starting in 1.4.
duke@435 919
duke@435 920 int java_lang_Thread::_name_offset = 0;
duke@435 921 int java_lang_Thread::_group_offset = 0;
duke@435 922 int java_lang_Thread::_contextClassLoader_offset = 0;
duke@435 923 int java_lang_Thread::_inheritedAccessControlContext_offset = 0;
duke@435 924 int java_lang_Thread::_priority_offset = 0;
duke@435 925 int java_lang_Thread::_eetop_offset = 0;
duke@435 926 int java_lang_Thread::_daemon_offset = 0;
duke@435 927 int java_lang_Thread::_stillborn_offset = 0;
duke@435 928 int java_lang_Thread::_stackSize_offset = 0;
duke@435 929 int java_lang_Thread::_tid_offset = 0;
duke@435 930 int java_lang_Thread::_thread_status_offset = 0;
duke@435 931 int java_lang_Thread::_park_blocker_offset = 0;
duke@435 932 int java_lang_Thread::_park_event_offset = 0 ;
duke@435 933
duke@435 934
duke@435 935 void java_lang_Thread::compute_offsets() {
duke@435 936 assert(_group_offset == 0, "offsets should be initialized only once");
duke@435 937
coleenp@4037 938 Klass* k = SystemDictionary::Thread_klass();
shade@8288 939 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature());
jrose@567 940 compute_offset(_group_offset, k, vmSymbols::group_name(), vmSymbols::threadgroup_signature());
jrose@567 941 compute_offset(_contextClassLoader_offset, k, vmSymbols::contextClassLoader_name(), vmSymbols::classloader_signature());
jrose@567 942 compute_offset(_inheritedAccessControlContext_offset, k, vmSymbols::inheritedAccessControlContext_name(), vmSymbols::accesscontrolcontext_signature());
jrose@567 943 compute_offset(_priority_offset, k, vmSymbols::priority_name(), vmSymbols::int_signature());
jrose@567 944 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature());
jrose@567 945 compute_offset(_eetop_offset, k, vmSymbols::eetop_name(), vmSymbols::long_signature());
jrose@567 946 compute_offset(_stillborn_offset, k, vmSymbols::stillborn_name(), vmSymbols::bool_signature());
duke@435 947 // The stackSize field is only present starting in 1.4, so don't go fatal.
jrose@567 948 compute_optional_offset(_stackSize_offset, k, vmSymbols::stackSize_name(), vmSymbols::long_signature());
duke@435 949 // The tid and thread_status fields are only present starting in 1.5, so don't go fatal.
jrose@567 950 compute_optional_offset(_tid_offset, k, vmSymbols::thread_id_name(), vmSymbols::long_signature());
jrose@567 951 compute_optional_offset(_thread_status_offset, k, vmSymbols::thread_status_name(), vmSymbols::int_signature());
duke@435 952 // The parkBlocker field is only present starting in 1.6, so don't go fatal.
jrose@567 953 compute_optional_offset(_park_blocker_offset, k, vmSymbols::park_blocker_name(), vmSymbols::object_signature());
jrose@567 954 compute_optional_offset(_park_event_offset, k, vmSymbols::park_event_name(),
duke@435 955 vmSymbols::long_signature());
duke@435 956 }
duke@435 957
duke@435 958
duke@435 959 JavaThread* java_lang_Thread::thread(oop java_thread) {
coleenp@548 960 return (JavaThread*)java_thread->address_field(_eetop_offset);
duke@435 961 }
duke@435 962
duke@435 963
duke@435 964 void java_lang_Thread::set_thread(oop java_thread, JavaThread* thread) {
coleenp@548 965 java_thread->address_field_put(_eetop_offset, (address)thread);
duke@435 966 }
duke@435 967
duke@435 968
shade@8288 969 oop java_lang_Thread::name(oop java_thread) {
shade@8288 970 return java_thread->obj_field(_name_offset);
shade@8288 971 }
shade@8288 972
shade@8288 973
shade@8288 974 void java_lang_Thread::set_name(oop java_thread, oop name) {
duke@435 975 java_thread->obj_field_put(_name_offset, name);
duke@435 976 }
duke@435 977
duke@435 978
duke@435 979 ThreadPriority java_lang_Thread::priority(oop java_thread) {
duke@435 980 return (ThreadPriority)java_thread->int_field(_priority_offset);
duke@435 981 }
duke@435 982
duke@435 983
duke@435 984 void java_lang_Thread::set_priority(oop java_thread, ThreadPriority priority) {
duke@435 985 java_thread->int_field_put(_priority_offset, priority);
duke@435 986 }
duke@435 987
duke@435 988
duke@435 989 oop java_lang_Thread::threadGroup(oop java_thread) {
duke@435 990 return java_thread->obj_field(_group_offset);
duke@435 991 }
duke@435 992
duke@435 993
duke@435 994 bool java_lang_Thread::is_stillborn(oop java_thread) {
duke@435 995 return java_thread->bool_field(_stillborn_offset) != 0;
duke@435 996 }
duke@435 997
duke@435 998
duke@435 999 // We never have reason to turn the stillborn bit off
duke@435 1000 void java_lang_Thread::set_stillborn(oop java_thread) {
duke@435 1001 java_thread->bool_field_put(_stillborn_offset, true);
duke@435 1002 }
duke@435 1003
duke@435 1004
duke@435 1005 bool java_lang_Thread::is_alive(oop java_thread) {
duke@435 1006 JavaThread* thr = java_lang_Thread::thread(java_thread);
duke@435 1007 return (thr != NULL);
duke@435 1008 }
duke@435 1009
duke@435 1010
duke@435 1011 bool java_lang_Thread::is_daemon(oop java_thread) {
duke@435 1012 return java_thread->bool_field(_daemon_offset) != 0;
duke@435 1013 }
duke@435 1014
duke@435 1015
duke@435 1016 void java_lang_Thread::set_daemon(oop java_thread) {
duke@435 1017 java_thread->bool_field_put(_daemon_offset, true);
duke@435 1018 }
duke@435 1019
duke@435 1020 oop java_lang_Thread::context_class_loader(oop java_thread) {
duke@435 1021 return java_thread->obj_field(_contextClassLoader_offset);
duke@435 1022 }
duke@435 1023
duke@435 1024 oop java_lang_Thread::inherited_access_control_context(oop java_thread) {
duke@435 1025 return java_thread->obj_field(_inheritedAccessControlContext_offset);
duke@435 1026 }
duke@435 1027
duke@435 1028
duke@435 1029 jlong java_lang_Thread::stackSize(oop java_thread) {
duke@435 1030 // The stackSize field is only present starting in 1.4
duke@435 1031 if (_stackSize_offset > 0) {
duke@435 1032 assert(JDK_Version::is_gte_jdk14x_version(), "sanity check");
duke@435 1033 return java_thread->long_field(_stackSize_offset);
duke@435 1034 } else {
duke@435 1035 return 0;
duke@435 1036 }
duke@435 1037 }
duke@435 1038
duke@435 1039 // Write the thread status value to threadStatus field in java.lang.Thread java class.
duke@435 1040 void java_lang_Thread::set_thread_status(oop java_thread,
duke@435 1041 java_lang_Thread::ThreadStatus status) {
duke@435 1042 // The threadStatus is only present starting in 1.5
duke@435 1043 if (_thread_status_offset > 0) {
duke@435 1044 java_thread->int_field_put(_thread_status_offset, status);
duke@435 1045 }
duke@435 1046 }
duke@435 1047
duke@435 1048 // Read thread status value from threadStatus field in java.lang.Thread java class.
duke@435 1049 java_lang_Thread::ThreadStatus java_lang_Thread::get_thread_status(oop java_thread) {
apetushkov@9858 1050 assert(Threads_lock->owned_by_self() || Thread::current()->is_Watcher_thread() ||
apetushkov@9858 1051 Thread::current()->is_VM_thread() ||
duke@435 1052 JavaThread::current()->thread_state() == _thread_in_vm,
duke@435 1053 "Java Thread is not running in vm");
duke@435 1054 // The threadStatus is only present starting in 1.5
duke@435 1055 if (_thread_status_offset > 0) {
duke@435 1056 return (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset);
duke@435 1057 } else {
duke@435 1058 // All we can easily figure out is if it is alive, but that is
duke@435 1059 // enough info for a valid unknown status.
duke@435 1060 // These aren't restricted to valid set ThreadStatus values, so
duke@435 1061 // use JVMTI values and cast.
duke@435 1062 JavaThread* thr = java_lang_Thread::thread(java_thread);
duke@435 1063 if (thr == NULL) {
duke@435 1064 // the thread hasn't run yet or is in the process of exiting
duke@435 1065 return NEW;
duke@435 1066 }
duke@435 1067 return (java_lang_Thread::ThreadStatus)JVMTI_THREAD_STATE_ALIVE;
duke@435 1068 }
duke@435 1069 }
duke@435 1070
duke@435 1071
duke@435 1072 jlong java_lang_Thread::thread_id(oop java_thread) {
duke@435 1073 // The thread ID field is only present starting in 1.5
duke@435 1074 if (_tid_offset > 0) {
duke@435 1075 return java_thread->long_field(_tid_offset);
duke@435 1076 } else {
duke@435 1077 return 0;
duke@435 1078 }
duke@435 1079 }
duke@435 1080
duke@435 1081 oop java_lang_Thread::park_blocker(oop java_thread) {
kamg@677 1082 assert(JDK_Version::current().supports_thread_park_blocker() &&
kamg@677 1083 _park_blocker_offset != 0, "Must support parkBlocker field");
duke@435 1084
duke@435 1085 if (_park_blocker_offset > 0) {
duke@435 1086 return java_thread->obj_field(_park_blocker_offset);
duke@435 1087 }
duke@435 1088
duke@435 1089 return NULL;
duke@435 1090 }
duke@435 1091
duke@435 1092 jlong java_lang_Thread::park_event(oop java_thread) {
duke@435 1093 if (_park_event_offset > 0) {
duke@435 1094 return java_thread->long_field(_park_event_offset);
duke@435 1095 }
duke@435 1096 return 0;
duke@435 1097 }
duke@435 1098
duke@435 1099 bool java_lang_Thread::set_park_event(oop java_thread, jlong ptr) {
duke@435 1100 if (_park_event_offset > 0) {
duke@435 1101 java_thread->long_field_put(_park_event_offset, ptr);
duke@435 1102 return true;
duke@435 1103 }
duke@435 1104 return false;
duke@435 1105 }
duke@435 1106
duke@435 1107
duke@435 1108 const char* java_lang_Thread::thread_status_name(oop java_thread) {
duke@435 1109 assert(JDK_Version::is_gte_jdk15x_version() && _thread_status_offset != 0, "Must have thread status");
duke@435 1110 ThreadStatus status = (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset);
duke@435 1111 switch (status) {
duke@435 1112 case NEW : return "NEW";
duke@435 1113 case RUNNABLE : return "RUNNABLE";
duke@435 1114 case SLEEPING : return "TIMED_WAITING (sleeping)";
duke@435 1115 case IN_OBJECT_WAIT : return "WAITING (on object monitor)";
duke@435 1116 case IN_OBJECT_WAIT_TIMED : return "TIMED_WAITING (on object monitor)";
duke@435 1117 case PARKED : return "WAITING (parking)";
duke@435 1118 case PARKED_TIMED : return "TIMED_WAITING (parking)";
duke@435 1119 case BLOCKED_ON_MONITOR_ENTER : return "BLOCKED (on object monitor)";
duke@435 1120 case TERMINATED : return "TERMINATED";
duke@435 1121 default : return "UNKNOWN";
duke@435 1122 };
duke@435 1123 }
duke@435 1124 int java_lang_ThreadGroup::_parent_offset = 0;
duke@435 1125 int java_lang_ThreadGroup::_name_offset = 0;
duke@435 1126 int java_lang_ThreadGroup::_threads_offset = 0;
duke@435 1127 int java_lang_ThreadGroup::_groups_offset = 0;
duke@435 1128 int java_lang_ThreadGroup::_maxPriority_offset = 0;
duke@435 1129 int java_lang_ThreadGroup::_destroyed_offset = 0;
duke@435 1130 int java_lang_ThreadGroup::_daemon_offset = 0;
duke@435 1131 int java_lang_ThreadGroup::_vmAllowSuspension_offset = 0;
duke@435 1132 int java_lang_ThreadGroup::_nthreads_offset = 0;
duke@435 1133 int java_lang_ThreadGroup::_ngroups_offset = 0;
duke@435 1134
duke@435 1135 oop java_lang_ThreadGroup::parent(oop java_thread_group) {
duke@435 1136 assert(java_thread_group->is_oop(), "thread group must be oop");
duke@435 1137 return java_thread_group->obj_field(_parent_offset);
duke@435 1138 }
duke@435 1139
duke@435 1140 // ("name as oop" accessor is not necessary)
duke@435 1141
duke@435 1142 typeArrayOop java_lang_ThreadGroup::name(oop java_thread_group) {
duke@435 1143 oop name = java_thread_group->obj_field(_name_offset);
duke@435 1144 // ThreadGroup.name can be null
duke@435 1145 return name == NULL ? (typeArrayOop)NULL : java_lang_String::value(name);
duke@435 1146 }
duke@435 1147
duke@435 1148 int java_lang_ThreadGroup::nthreads(oop java_thread_group) {
duke@435 1149 assert(java_thread_group->is_oop(), "thread group must be oop");
duke@435 1150 return java_thread_group->int_field(_nthreads_offset);
duke@435 1151 }
duke@435 1152
duke@435 1153 objArrayOop java_lang_ThreadGroup::threads(oop java_thread_group) {
duke@435 1154 oop threads = java_thread_group->obj_field(_threads_offset);
duke@435 1155 assert(threads != NULL, "threadgroups should have threads");
duke@435 1156 assert(threads->is_objArray(), "just checking"); // Todo: Add better type checking code
duke@435 1157 return objArrayOop(threads);
duke@435 1158 }
duke@435 1159
duke@435 1160 int java_lang_ThreadGroup::ngroups(oop java_thread_group) {
duke@435 1161 assert(java_thread_group->is_oop(), "thread group must be oop");
duke@435 1162 return java_thread_group->int_field(_ngroups_offset);
duke@435 1163 }
duke@435 1164
duke@435 1165 objArrayOop java_lang_ThreadGroup::groups(oop java_thread_group) {
duke@435 1166 oop groups = java_thread_group->obj_field(_groups_offset);
duke@435 1167 assert(groups == NULL || groups->is_objArray(), "just checking"); // Todo: Add better type checking code
duke@435 1168 return objArrayOop(groups);
duke@435 1169 }
duke@435 1170
duke@435 1171 ThreadPriority java_lang_ThreadGroup::maxPriority(oop java_thread_group) {
duke@435 1172 assert(java_thread_group->is_oop(), "thread group must be oop");
duke@435 1173 return (ThreadPriority) java_thread_group->int_field(_maxPriority_offset);
duke@435 1174 }
duke@435 1175
duke@435 1176 bool java_lang_ThreadGroup::is_destroyed(oop java_thread_group) {
duke@435 1177 assert(java_thread_group->is_oop(), "thread group must be oop");
duke@435 1178 return java_thread_group->bool_field(_destroyed_offset) != 0;
duke@435 1179 }
duke@435 1180
duke@435 1181 bool java_lang_ThreadGroup::is_daemon(oop java_thread_group) {
duke@435 1182 assert(java_thread_group->is_oop(), "thread group must be oop");
duke@435 1183 return java_thread_group->bool_field(_daemon_offset) != 0;
duke@435 1184 }
duke@435 1185
duke@435 1186 bool java_lang_ThreadGroup::is_vmAllowSuspension(oop java_thread_group) {
duke@435 1187 assert(java_thread_group->is_oop(), "thread group must be oop");
duke@435 1188 return java_thread_group->bool_field(_vmAllowSuspension_offset) != 0;
duke@435 1189 }
duke@435 1190
duke@435 1191 void java_lang_ThreadGroup::compute_offsets() {
duke@435 1192 assert(_parent_offset == 0, "offsets should be initialized only once");
duke@435 1193
coleenp@4037 1194 Klass* k = SystemDictionary::ThreadGroup_klass();
duke@435 1195
jrose@567 1196 compute_offset(_parent_offset, k, vmSymbols::parent_name(), vmSymbols::threadgroup_signature());
jrose@567 1197 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature());
jrose@567 1198 compute_offset(_threads_offset, k, vmSymbols::threads_name(), vmSymbols::thread_array_signature());
jrose@567 1199 compute_offset(_groups_offset, k, vmSymbols::groups_name(), vmSymbols::threadgroup_array_signature());
jrose@567 1200 compute_offset(_maxPriority_offset, k, vmSymbols::maxPriority_name(), vmSymbols::int_signature());
jrose@567 1201 compute_offset(_destroyed_offset, k, vmSymbols::destroyed_name(), vmSymbols::bool_signature());
jrose@567 1202 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature());
jrose@567 1203 compute_offset(_vmAllowSuspension_offset, k, vmSymbols::vmAllowSuspension_name(), vmSymbols::bool_signature());
jrose@567 1204 compute_offset(_nthreads_offset, k, vmSymbols::nthreads_name(), vmSymbols::int_signature());
jrose@567 1205 compute_offset(_ngroups_offset, k, vmSymbols::ngroups_name(), vmSymbols::int_signature());
duke@435 1206 }
duke@435 1207
dholmes@3018 1208 oop java_lang_Throwable::unassigned_stacktrace() {
coleenp@4037 1209 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Throwable_klass());
dholmes@3018 1210 address addr = ik->static_field_addr(static_unassigned_stacktrace_offset);
dholmes@3018 1211 if (UseCompressedOops) {
dholmes@3018 1212 return oopDesc::load_decode_heap_oop((narrowOop *)addr);
dholmes@3018 1213 } else {
dholmes@3018 1214 return oopDesc::load_decode_heap_oop((oop*)addr);
dholmes@3018 1215 }
dholmes@3018 1216 }
dholmes@3018 1217
duke@435 1218 oop java_lang_Throwable::backtrace(oop throwable) {
duke@435 1219 return throwable->obj_field_acquire(backtrace_offset);
duke@435 1220 }
duke@435 1221
duke@435 1222
duke@435 1223 void java_lang_Throwable::set_backtrace(oop throwable, oop value) {
duke@435 1224 throwable->release_obj_field_put(backtrace_offset, value);
duke@435 1225 }
duke@435 1226
duke@435 1227
duke@435 1228 oop java_lang_Throwable::message(oop throwable) {
duke@435 1229 return throwable->obj_field(detailMessage_offset);
duke@435 1230 }
duke@435 1231
duke@435 1232
duke@435 1233 oop java_lang_Throwable::message(Handle throwable) {
duke@435 1234 return throwable->obj_field(detailMessage_offset);
duke@435 1235 }
duke@435 1236
duke@435 1237
coleenp@9970 1238 // Return Symbol for detailed_message or NULL
coleenp@9970 1239 Symbol* java_lang_Throwable::detail_message(oop throwable) {
coleenp@9970 1240 PRESERVE_EXCEPTION_MARK; // Keep original exception
coleenp@9970 1241 oop detailed_message = java_lang_Throwable::message(throwable);
coleenp@9970 1242 if (detailed_message != NULL) {
coleenp@9970 1243 return java_lang_String::as_symbol(detailed_message, THREAD);
coleenp@9970 1244 }
coleenp@9970 1245 return NULL;
coleenp@9970 1246 }
coleenp@9970 1247
duke@435 1248 void java_lang_Throwable::set_message(oop throwable, oop value) {
duke@435 1249 throwable->obj_field_put(detailMessage_offset, value);
duke@435 1250 }
duke@435 1251
duke@435 1252
dholmes@3018 1253 void java_lang_Throwable::set_stacktrace(oop throwable, oop st_element_array) {
dholmes@3018 1254 throwable->obj_field_put(stackTrace_offset, st_element_array);
dholmes@3018 1255 }
dholmes@3018 1256
duke@435 1257 void java_lang_Throwable::clear_stacktrace(oop throwable) {
duke@435 1258 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4");
dholmes@3018 1259 set_stacktrace(throwable, NULL);
duke@435 1260 }
duke@435 1261
duke@435 1262
duke@435 1263 void java_lang_Throwable::print(oop throwable, outputStream* st) {
duke@435 1264 ResourceMark rm;
coleenp@4037 1265 Klass* k = throwable->klass();
duke@435 1266 assert(k != NULL, "just checking");
coleenp@4037 1267 st->print("%s", InstanceKlass::cast(k)->external_name());
duke@435 1268 oop msg = message(throwable);
duke@435 1269 if (msg != NULL) {
duke@435 1270 st->print(": %s", java_lang_String::as_utf8_string(msg));
duke@435 1271 }
duke@435 1272 }
duke@435 1273
duke@435 1274
duke@435 1275 void java_lang_Throwable::print(Handle throwable, outputStream* st) {
duke@435 1276 ResourceMark rm;
coleenp@4037 1277 Klass* k = throwable->klass();
duke@435 1278 assert(k != NULL, "just checking");
coleenp@4037 1279 st->print("%s", InstanceKlass::cast(k)->external_name());
duke@435 1280 oop msg = message(throwable);
duke@435 1281 if (msg != NULL) {
duke@435 1282 st->print(": %s", java_lang_String::as_utf8_string(msg));
duke@435 1283 }
duke@435 1284 }
duke@435 1285
coleenp@4466 1286 // After this many redefines, the stack trace is unreliable.
coleenp@4466 1287 const int MAX_VERSION = USHRT_MAX;
coleenp@4466 1288
coleenp@4466 1289 // Helper backtrace functions to store bci|version together.
coleenp@4466 1290 static inline int merge_bci_and_version(int bci, int version) {
coleenp@4466 1291 // only store u2 for version, checking for overflow.
coleenp@4466 1292 if (version > USHRT_MAX || version < 0) version = MAX_VERSION;
coleenp@4466 1293 assert((jushort)bci == bci, "bci should be short");
coleenp@4466 1294 return build_int_from_shorts(version, bci);
coleenp@4466 1295 }
coleenp@4466 1296
coleenp@4466 1297 static inline int bci_at(unsigned int merged) {
coleenp@4466 1298 return extract_high_short_from_int(merged);
coleenp@4466 1299 }
coleenp@4466 1300 static inline int version_at(unsigned int merged) {
coleenp@4466 1301 return extract_low_short_from_int(merged);
coleenp@4466 1302 }
coleenp@4466 1303
coleenp@4466 1304 static inline bool version_matches(Method* method, int version) {
sspitsyn@7683 1305 assert(version < MAX_VERSION, "version is too big");
sspitsyn@7683 1306 return method != NULL && (method->constants()->version() == version);
coleenp@4466 1307 }
coleenp@4466 1308
coleenp@4466 1309 static inline int get_line_number(Method* method, int bci) {
coleenp@4466 1310 int line_number = 0;
coleenp@4466 1311 if (method->is_native()) {
coleenp@4466 1312 // Negative value different from -1 below, enabling Java code in
coleenp@4466 1313 // class java.lang.StackTraceElement to distinguish "native" from
coleenp@4466 1314 // "no LineNumberTable". JDK tests for -2.
coleenp@4466 1315 line_number = -2;
duke@435 1316 } else {
coleenp@4466 1317 // Returns -1 if no LineNumberTable, and otherwise actual line number
coleenp@4466 1318 line_number = method->line_number_from_bci(bci);
coleenp@4466 1319 if (line_number == -1 && ShowHiddenFrames) {
coleenp@4466 1320 line_number = bci + 1000000;
duke@435 1321 }
duke@435 1322 }
coleenp@4466 1323 return line_number;
duke@435 1324 }
duke@435 1325
duke@435 1326 // This class provides a simple wrapper over the internal structure of
duke@435 1327 // exception backtrace to insulate users of the backtrace from needing
duke@435 1328 // to know what it looks like.
duke@435 1329 class BacktraceBuilder: public StackObj {
duke@435 1330 private:
duke@435 1331 Handle _backtrace;
duke@435 1332 objArrayOop _head;
coleenp@4037 1333 typeArrayOop _methods;
duke@435 1334 typeArrayOop _bcis;
coleenp@4037 1335 objArrayOop _mirrors;
sspitsyn@7683 1336 typeArrayOop _cprefs; // needed to insulate method name against redefinition
duke@435 1337 int _index;
duke@435 1338 No_Safepoint_Verifier _nsv;
duke@435 1339
duke@435 1340 public:
duke@435 1341
duke@435 1342 enum {
duke@435 1343 trace_methods_offset = java_lang_Throwable::trace_methods_offset,
sspitsyn@7683 1344 trace_bcis_offset = java_lang_Throwable::trace_bcis_offset,
coleenp@4037 1345 trace_mirrors_offset = java_lang_Throwable::trace_mirrors_offset,
sspitsyn@7683 1346 trace_cprefs_offset = java_lang_Throwable::trace_cprefs_offset,
duke@435 1347 trace_next_offset = java_lang_Throwable::trace_next_offset,
duke@435 1348 trace_size = java_lang_Throwable::trace_size,
duke@435 1349 trace_chunk_size = java_lang_Throwable::trace_chunk_size
duke@435 1350 };
duke@435 1351
coleenp@4466 1352 // get info out of chunks
coleenp@4466 1353 static typeArrayOop get_methods(objArrayHandle chunk) {
coleenp@4466 1354 typeArrayOop methods = typeArrayOop(chunk->obj_at(trace_methods_offset));
coleenp@4466 1355 assert(methods != NULL, "method array should be initialized in backtrace");
coleenp@4466 1356 return methods;
coleenp@4466 1357 }
coleenp@4466 1358 static typeArrayOop get_bcis(objArrayHandle chunk) {
coleenp@4466 1359 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset));
coleenp@4466 1360 assert(bcis != NULL, "bci array should be initialized in backtrace");
coleenp@4466 1361 return bcis;
coleenp@4466 1362 }
coleenp@4466 1363 static objArrayOop get_mirrors(objArrayHandle chunk) {
coleenp@4466 1364 objArrayOop mirrors = objArrayOop(chunk->obj_at(trace_mirrors_offset));
coleenp@4466 1365 assert(mirrors != NULL, "mirror array should be initialized in backtrace");
coleenp@4466 1366 return mirrors;
coleenp@4466 1367 }
sspitsyn@7683 1368 static typeArrayOop get_cprefs(objArrayHandle chunk) {
sspitsyn@7683 1369 typeArrayOop cprefs = typeArrayOop(chunk->obj_at(trace_cprefs_offset));
sspitsyn@7683 1370 assert(cprefs != NULL, "cprefs array should be initialized in backtrace");
sspitsyn@7683 1371 return cprefs;
sspitsyn@7683 1372 }
coleenp@4466 1373
duke@435 1374 // constructor for new backtrace
sspitsyn@7683 1375 BacktraceBuilder(TRAPS): _methods(NULL), _bcis(NULL), _head(NULL), _mirrors(NULL), _cprefs(NULL) {
duke@435 1376 expand(CHECK);
duke@435 1377 _backtrace = _head;
duke@435 1378 _index = 0;
duke@435 1379 }
duke@435 1380
coleenp@4466 1381 BacktraceBuilder(objArrayHandle backtrace) {
coleenp@4466 1382 _methods = get_methods(backtrace);
coleenp@4466 1383 _bcis = get_bcis(backtrace);
coleenp@4466 1384 _mirrors = get_mirrors(backtrace);
sspitsyn@7683 1385 _cprefs = get_cprefs(backtrace);
coleenp@4466 1386 assert(_methods->length() == _bcis->length() &&
coleenp@4466 1387 _methods->length() == _mirrors->length(),
coleenp@4466 1388 "method and source information arrays should match");
coleenp@4466 1389
coleenp@4466 1390 // head is the preallocated backtrace
coleenp@4466 1391 _backtrace = _head = backtrace();
coleenp@4466 1392 _index = 0;
coleenp@4466 1393 }
coleenp@4466 1394
duke@435 1395 void expand(TRAPS) {
duke@435 1396 objArrayHandle old_head(THREAD, _head);
duke@435 1397 Pause_No_Safepoint_Verifier pnsv(&_nsv);
duke@435 1398
duke@435 1399 objArrayOop head = oopFactory::new_objectArray(trace_size, CHECK);
duke@435 1400 objArrayHandle new_head(THREAD, head);
duke@435 1401
coleenp@4466 1402 typeArrayOop methods = oopFactory::new_shortArray(trace_chunk_size, CHECK);
coleenp@4037 1403 typeArrayHandle new_methods(THREAD, methods);
duke@435 1404
coleenp@4466 1405 typeArrayOop bcis = oopFactory::new_intArray(trace_chunk_size, CHECK);
duke@435 1406 typeArrayHandle new_bcis(THREAD, bcis);
duke@435 1407
coleenp@4037 1408 objArrayOop mirrors = oopFactory::new_objectArray(trace_chunk_size, CHECK);
coleenp@4037 1409 objArrayHandle new_mirrors(THREAD, mirrors);
coleenp@4037 1410
sspitsyn@7683 1411 typeArrayOop cprefs = oopFactory::new_shortArray(trace_chunk_size, CHECK);
sspitsyn@7683 1412 typeArrayHandle new_cprefs(THREAD, cprefs);
sspitsyn@7683 1413
duke@435 1414 if (!old_head.is_null()) {
duke@435 1415 old_head->obj_at_put(trace_next_offset, new_head());
duke@435 1416 }
duke@435 1417 new_head->obj_at_put(trace_methods_offset, new_methods());
duke@435 1418 new_head->obj_at_put(trace_bcis_offset, new_bcis());
coleenp@4037 1419 new_head->obj_at_put(trace_mirrors_offset, new_mirrors());
sspitsyn@7683 1420 new_head->obj_at_put(trace_cprefs_offset, new_cprefs());
duke@435 1421
duke@435 1422 _head = new_head();
duke@435 1423 _methods = new_methods();
coleenp@4466 1424 _bcis = new_bcis();
coleenp@4037 1425 _mirrors = new_mirrors();
sspitsyn@7683 1426 _cprefs = new_cprefs();
duke@435 1427 _index = 0;
duke@435 1428 }
duke@435 1429
duke@435 1430 oop backtrace() {
duke@435 1431 return _backtrace();
duke@435 1432 }
duke@435 1433
coleenp@4037 1434 inline void push(Method* method, int bci, TRAPS) {
never@3444 1435 // Smear the -1 bci to 0 since the array only holds unsigned
never@3444 1436 // shorts. The later line number lookup would just smear the -1
never@3444 1437 // to a 0 even if it could be recorded.
never@3444 1438 if (bci == SynchronizationEntryBCI) bci = 0;
never@3444 1439
duke@435 1440 if (_index >= trace_chunk_size) {
duke@435 1441 methodHandle mhandle(THREAD, method);
duke@435 1442 expand(CHECK);
duke@435 1443 method = mhandle();
duke@435 1444 }
duke@435 1445
sspitsyn@7683 1446 _methods->short_at_put(_index, method->orig_method_idnum());
coleenp@4466 1447 _bcis->int_at_put(_index, merge_bci_and_version(bci, method->constants()->version()));
sspitsyn@7683 1448 _cprefs->short_at_put(_index, method->name_index());
coleenp@4466 1449
coleenp@4466 1450 // We need to save the mirrors in the backtrace to keep the class
coleenp@4466 1451 // from being unloaded while we still have this stack trace.
coleenp@4466 1452 assert(method->method_holder()->java_mirror() != NULL, "never push null for mirror");
coleenp@4037 1453 _mirrors->obj_at_put(_index, method->method_holder()->java_mirror());
duke@435 1454 _index++;
duke@435 1455 }
duke@435 1456
coleenp@4466 1457 };
coleenp@4466 1458
coleenp@4466 1459 // Print stack trace element to resource allocated buffer
coleenp@4466 1460 char* java_lang_Throwable::print_stack_element_to_buffer(Handle mirror,
sspitsyn@7683 1461 int method_id, int version, int bci, int cpref) {
coleenp@4466 1462
coleenp@4466 1463 // Get strings and string lengths
coleenp@4466 1464 InstanceKlass* holder = InstanceKlass::cast(java_lang_Class::as_Klass(mirror()));
coleenp@4466 1465 const char* klass_name = holder->external_name();
coleenp@4466 1466 int buf_len = (int)strlen(klass_name);
coleenp@4466 1467
sspitsyn@7683 1468 Method* method = holder->method_with_orig_idnum(method_id, version);
sspitsyn@7683 1469
sspitsyn@7683 1470 // The method can be NULL if the requested class version is gone
sspitsyn@7683 1471 Symbol* sym = (method != NULL) ? method->name() : holder->constants()->symbol_at(cpref);
sspitsyn@7683 1472 char* method_name = sym->as_C_string();
coleenp@4466 1473 buf_len += (int)strlen(method_name);
coleenp@4466 1474
sspitsyn@7683 1475 // Use a specific ik version as a holder since the mirror might
sspitsyn@7683 1476 // refer to a version that is now obsolete and no longer accessible
sspitsyn@7683 1477 // via the previous versions list.
sspitsyn@7683 1478 holder = holder->get_klass_version(version);
coleenp@4466 1479 char* source_file_name = NULL;
sspitsyn@7683 1480 if (holder != NULL) {
coleenp@4466 1481 Symbol* source = holder->source_file_name();
coleenp@4466 1482 if (source != NULL) {
coleenp@4466 1483 source_file_name = source->as_C_string();
coleenp@4466 1484 buf_len += (int)strlen(source_file_name);
coleenp@4466 1485 }
duke@435 1486 }
duke@435 1487
coleenp@4466 1488 // Allocate temporary buffer with extra space for formatting and line number
coleenp@4466 1489 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64);
coleenp@4466 1490
coleenp@4466 1491 // Print stack trace line in buffer
coleenp@4466 1492 sprintf(buf, "\tat %s.%s", klass_name, method_name);
coleenp@4466 1493
coleenp@4466 1494 if (!version_matches(method, version)) {
coleenp@4466 1495 strcat(buf, "(Redefined)");
coleenp@4466 1496 } else {
coleenp@4466 1497 int line_number = get_line_number(method, bci);
coleenp@4466 1498 if (line_number == -2) {
coleenp@4466 1499 strcat(buf, "(Native Method)");
coleenp@4466 1500 } else {
coleenp@4466 1501 if (source_file_name != NULL && (line_number != -1)) {
coleenp@4466 1502 // Sourcename and linenumber
coleenp@4466 1503 sprintf(buf + (int)strlen(buf), "(%s:%d)", source_file_name, line_number);
coleenp@4466 1504 } else if (source_file_name != NULL) {
coleenp@4466 1505 // Just sourcename
coleenp@4466 1506 sprintf(buf + (int)strlen(buf), "(%s)", source_file_name);
coleenp@4466 1507 } else {
coleenp@4466 1508 // Neither sourcename nor linenumber
coleenp@4466 1509 sprintf(buf + (int)strlen(buf), "(Unknown Source)");
coleenp@4466 1510 }
coleenp@4466 1511 nmethod* nm = method->code();
coleenp@4466 1512 if (WizardMode && nm != NULL) {
coleenp@4466 1513 sprintf(buf + (int)strlen(buf), "(nmethod " INTPTR_FORMAT ")", (intptr_t)nm);
coleenp@4466 1514 }
coleenp@4466 1515 }
duke@435 1516 }
coleenp@4466 1517
coleenp@4466 1518 return buf;
coleenp@4466 1519 }
coleenp@4466 1520
coleenp@4466 1521 void java_lang_Throwable::print_stack_element(outputStream *st, Handle mirror,
sspitsyn@7683 1522 int method_id, int version, int bci, int cpref) {
coleenp@4466 1523 ResourceMark rm;
sspitsyn@7683 1524 char* buf = print_stack_element_to_buffer(mirror, method_id, version, bci, cpref);
coleenp@4466 1525 st->print_cr("%s", buf);
coleenp@4466 1526 }
coleenp@4466 1527
coleenp@4466 1528 void java_lang_Throwable::print_stack_element(outputStream *st, methodHandle method, int bci) {
coleenp@4466 1529 Handle mirror = method->method_holder()->java_mirror();
sspitsyn@7683 1530 int method_id = method->orig_method_idnum();
coleenp@4466 1531 int version = method->constants()->version();
sspitsyn@7683 1532 int cpref = method->name_index();
sspitsyn@7683 1533 print_stack_element(st, mirror, method_id, version, bci, cpref);
coleenp@4466 1534 }
coleenp@4466 1535
coleenp@4466 1536 const char* java_lang_Throwable::no_stack_trace_message() {
coleenp@4466 1537 return "\t<<no stack trace available>>";
coleenp@4466 1538 }
coleenp@4466 1539
coleenp@4466 1540
coleenp@4466 1541 // Currently used only for exceptions occurring during startup
coleenp@4466 1542 void java_lang_Throwable::print_stack_trace(oop throwable, outputStream* st) {
coleenp@4466 1543 Thread *THREAD = Thread::current();
coleenp@4466 1544 Handle h_throwable(THREAD, throwable);
coleenp@4466 1545 while (h_throwable.not_null()) {
coleenp@4466 1546 objArrayHandle result (THREAD, objArrayOop(backtrace(h_throwable())));
coleenp@4466 1547 if (result.is_null()) {
drchase@6680 1548 st->print_cr("%s", no_stack_trace_message());
coleenp@4466 1549 return;
coleenp@4466 1550 }
coleenp@4466 1551
coleenp@4466 1552 while (result.not_null()) {
coleenp@4466 1553
coleenp@4466 1554 // Get method id, bci, version and mirror from chunk
coleenp@4466 1555 typeArrayHandle methods (THREAD, BacktraceBuilder::get_methods(result));
coleenp@4466 1556 typeArrayHandle bcis (THREAD, BacktraceBuilder::get_bcis(result));
coleenp@4466 1557 objArrayHandle mirrors (THREAD, BacktraceBuilder::get_mirrors(result));
sspitsyn@7683 1558 typeArrayHandle cprefs (THREAD, BacktraceBuilder::get_cprefs(result));
coleenp@4466 1559
coleenp@4466 1560 int length = methods()->length();
coleenp@4466 1561 for (int index = 0; index < length; index++) {
coleenp@4466 1562 Handle mirror(THREAD, mirrors->obj_at(index));
coleenp@4466 1563 // NULL mirror means end of stack trace
coleenp@4466 1564 if (mirror.is_null()) goto handle_cause;
coleenp@4466 1565 int method = methods->short_at(index);
coleenp@4466 1566 int version = version_at(bcis->int_at(index));
coleenp@4466 1567 int bci = bci_at(bcis->int_at(index));
sspitsyn@7683 1568 int cpref = cprefs->short_at(index);
sspitsyn@7683 1569 print_stack_element(st, mirror, method, version, bci, cpref);
coleenp@4466 1570 }
coleenp@4466 1571 result = objArrayHandle(THREAD, objArrayOop(result->obj_at(trace_next_offset)));
coleenp@4466 1572 }
coleenp@4466 1573 handle_cause:
coleenp@4466 1574 {
coleenp@4466 1575 EXCEPTION_MARK;
coleenp@4466 1576 JavaValue cause(T_OBJECT);
coleenp@4466 1577 JavaCalls::call_virtual(&cause,
coleenp@4466 1578 h_throwable,
coleenp@4466 1579 KlassHandle(THREAD, h_throwable->klass()),
coleenp@4466 1580 vmSymbols::getCause_name(),
coleenp@4466 1581 vmSymbols::void_throwable_signature(),
coleenp@4466 1582 THREAD);
coleenp@4466 1583 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM.
coleenp@4466 1584 if (HAS_PENDING_EXCEPTION) {
coleenp@4466 1585 CLEAR_PENDING_EXCEPTION;
coleenp@4466 1586 h_throwable = Handle();
coleenp@4466 1587 } else {
coleenp@4466 1588 h_throwable = Handle(THREAD, (oop) cause.get_jobject());
coleenp@4466 1589 if (h_throwable.not_null()) {
coleenp@4466 1590 st->print("Caused by: ");
coleenp@4466 1591 print(h_throwable, st);
coleenp@4466 1592 st->cr();
coleenp@4466 1593 }
coleenp@4466 1594 }
coleenp@4466 1595 }
coleenp@4466 1596 }
coleenp@4466 1597 }
duke@435 1598
coleenp@2804 1599 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method, TRAPS) {
duke@435 1600 if (!StackTraceInThrowable) return;
duke@435 1601 ResourceMark rm(THREAD);
duke@435 1602
duke@435 1603 // Start out by clearing the backtrace for this object, in case the VM
duke@435 1604 // runs out of memory while allocating the stack trace
duke@435 1605 set_backtrace(throwable(), NULL);
duke@435 1606 if (JDK_Version::is_gte_jdk14x_version()) {
duke@435 1607 // New since 1.4, clear lazily constructed Java level stacktrace if
duke@435 1608 // refilling occurs
dholmes@3018 1609 // This is unnecessary in 1.7+ but harmless
duke@435 1610 clear_stacktrace(throwable());
duke@435 1611 }
duke@435 1612
duke@435 1613 int max_depth = MaxJavaStackTraceDepth;
duke@435 1614 JavaThread* thread = (JavaThread*)THREAD;
duke@435 1615 BacktraceBuilder bt(CHECK);
duke@435 1616
coleenp@2804 1617 // If there is no Java frame just return the method that was being called
coleenp@2804 1618 // with bci 0
coleenp@2804 1619 if (!thread->has_last_Java_frame()) {
coleenp@2804 1620 if (max_depth >= 1 && method() != NULL) {
coleenp@2804 1621 bt.push(method(), 0, CHECK);
coleenp@2804 1622 set_backtrace(throwable(), bt.backtrace());
coleenp@2804 1623 }
coleenp@2804 1624 return;
coleenp@2804 1625 }
coleenp@2804 1626
duke@435 1627 // Instead of using vframe directly, this version of fill_in_stack_trace
duke@435 1628 // basically handles everything by hand. This significantly improved the
duke@435 1629 // speed of this method call up to 28.5% on Solaris sparc. 27.1% on Windows.
duke@435 1630 // See bug 6333838 for more details.
duke@435 1631 // The "ASSERT" here is to verify this method generates the exactly same stack
duke@435 1632 // trace as utilizing vframe.
duke@435 1633 #ifdef ASSERT
duke@435 1634 vframeStream st(thread);
duke@435 1635 methodHandle st_method(THREAD, st.method());
duke@435 1636 #endif
duke@435 1637 int total_count = 0;
duke@435 1638 RegisterMap map(thread, false);
duke@435 1639 int decode_offset = 0;
duke@435 1640 nmethod* nm = NULL;
duke@435 1641 bool skip_fillInStackTrace_check = false;
duke@435 1642 bool skip_throwableInit_check = false;
twisti@3970 1643 bool skip_hidden = !ShowHiddenFrames;
duke@435 1644
duke@435 1645 for (frame fr = thread->last_frame(); max_depth != total_count;) {
coleenp@4037 1646 Method* method = NULL;
duke@435 1647 int bci = 0;
duke@435 1648
duke@435 1649 // Compiled java method case.
duke@435 1650 if (decode_offset != 0) {
duke@435 1651 DebugInfoReadStream stream(nm, decode_offset);
duke@435 1652 decode_offset = stream.read_int();
coleenp@4037 1653 method = (Method*)nm->metadata_at(stream.read_int());
cfang@1366 1654 bci = stream.read_bci();
duke@435 1655 } else {
duke@435 1656 if (fr.is_first_frame()) break;
duke@435 1657 address pc = fr.pc();
duke@435 1658 if (fr.is_interpreted_frame()) {
duke@435 1659 intptr_t bcx = fr.interpreter_frame_bcx();
duke@435 1660 method = fr.interpreter_frame_method();
duke@435 1661 bci = fr.is_bci(bcx) ? bcx : method->bci_from((address)bcx);
duke@435 1662 fr = fr.sender(&map);
duke@435 1663 } else {
duke@435 1664 CodeBlob* cb = fr.cb();
duke@435 1665 // HMMM QQQ might be nice to have frame return nm as NULL if cb is non-NULL
duke@435 1666 // but non nmethod
duke@435 1667 fr = fr.sender(&map);
duke@435 1668 if (cb == NULL || !cb->is_nmethod()) {
duke@435 1669 continue;
duke@435 1670 }
duke@435 1671 nm = (nmethod*)cb;
duke@435 1672 if (nm->method()->is_native()) {
duke@435 1673 method = nm->method();
duke@435 1674 bci = 0;
duke@435 1675 } else {
duke@435 1676 PcDesc* pd = nm->pc_desc_at(pc);
duke@435 1677 decode_offset = pd->scope_decode_offset();
duke@435 1678 // if decode_offset is not equal to 0, it will execute the
duke@435 1679 // "compiled java method case" at the beginning of the loop.
duke@435 1680 continue;
duke@435 1681 }
duke@435 1682 }
duke@435 1683 }
duke@435 1684 #ifdef ASSERT
dholmes@2758 1685 assert(st_method() == method && st.bci() == bci,
dholmes@2758 1686 "Wrong stack trace");
dholmes@2758 1687 st.next();
dholmes@2758 1688 // vframeStream::method isn't GC-safe so store off a copy
coleenp@4037 1689 // of the Method* in case we GC.
dholmes@2758 1690 if (!st.at_end()) {
dholmes@2758 1691 st_method = st.method();
dholmes@2758 1692 }
duke@435 1693 #endif
dholmes@2758 1694
dholmes@2758 1695 // the format of the stacktrace will be:
dholmes@2758 1696 // - 1 or more fillInStackTrace frames for the exception class (skipped)
dholmes@2758 1697 // - 0 or more <init> methods for the exception class (skipped)
dholmes@2758 1698 // - rest of the stack
dholmes@2758 1699
duke@435 1700 if (!skip_fillInStackTrace_check) {
dholmes@2758 1701 if ((method->name() == vmSymbols::fillInStackTrace_name() ||
dholmes@2758 1702 method->name() == vmSymbols::fillInStackTrace0_name()) &&
dholmes@2758 1703 throwable->is_a(method->method_holder())) {
duke@435 1704 continue;
duke@435 1705 }
dholmes@2758 1706 else {
dholmes@2758 1707 skip_fillInStackTrace_check = true; // gone past them all
dholmes@2758 1708 }
duke@435 1709 }
duke@435 1710 if (!skip_throwableInit_check) {
dholmes@2758 1711 assert(skip_fillInStackTrace_check, "logic error in backtrace filtering");
dholmes@2758 1712
dholmes@2758 1713 // skip <init> methods of the exception class and superclasses
dholmes@2758 1714 // This is simlar to classic VM.
duke@435 1715 if (method->name() == vmSymbols::object_initializer_name() &&
duke@435 1716 throwable->is_a(method->method_holder())) {
duke@435 1717 continue;
duke@435 1718 } else {
dholmes@2758 1719 // there are none or we've seen them all - either way stop checking
duke@435 1720 skip_throwableInit_check = true;
duke@435 1721 }
duke@435 1722 }
twisti@3969 1723 if (method->is_hidden()) {
twisti@3969 1724 if (skip_hidden) continue;
twisti@3969 1725 }
duke@435 1726 bt.push(method, bci, CHECK);
duke@435 1727 total_count++;
duke@435 1728 }
duke@435 1729
duke@435 1730 // Put completed stack trace into throwable object
duke@435 1731 set_backtrace(throwable(), bt.backtrace());
duke@435 1732 }
duke@435 1733
coleenp@2804 1734 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method) {
duke@435 1735 // No-op if stack trace is disabled
duke@435 1736 if (!StackTraceInThrowable) {
duke@435 1737 return;
duke@435 1738 }
duke@435 1739
duke@435 1740 // Disable stack traces for some preallocated out of memory errors
duke@435 1741 if (!Universe::should_fill_in_stack_trace(throwable)) {
duke@435 1742 return;
duke@435 1743 }
duke@435 1744
duke@435 1745 PRESERVE_EXCEPTION_MARK;
duke@435 1746
duke@435 1747 JavaThread* thread = JavaThread::active();
coleenp@2804 1748 fill_in_stack_trace(throwable, method, thread);
duke@435 1749 // ignore exceptions thrown during stack trace filling
duke@435 1750 CLEAR_PENDING_EXCEPTION;
duke@435 1751 }
duke@435 1752
duke@435 1753 void java_lang_Throwable::allocate_backtrace(Handle throwable, TRAPS) {
duke@435 1754 // Allocate stack trace - backtrace is created but not filled in
duke@435 1755
duke@435 1756 // No-op if stack trace is disabled
duke@435 1757 if (!StackTraceInThrowable) return;
coleenp@4466 1758 BacktraceBuilder bt(CHECK); // creates a backtrace
coleenp@4466 1759 set_backtrace(throwable(), bt.backtrace());
duke@435 1760 }
duke@435 1761
duke@435 1762
duke@435 1763 void java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(Handle throwable) {
duke@435 1764 // Fill in stack trace into preallocated backtrace (no GC)
duke@435 1765
duke@435 1766 // No-op if stack trace is disabled
duke@435 1767 if (!StackTraceInThrowable) return;
duke@435 1768
never@1577 1769 assert(throwable->is_a(SystemDictionary::Throwable_klass()), "sanity check");
duke@435 1770
coleenp@4466 1771 JavaThread* THREAD = JavaThread::current();
coleenp@4466 1772
coleenp@4466 1773 objArrayHandle backtrace (THREAD, (objArrayOop)java_lang_Throwable::backtrace(throwable()));
coleenp@4466 1774 assert(backtrace.not_null(), "backtrace should have been preallocated");
coleenp@4466 1775
coleenp@4466 1776 ResourceMark rm(THREAD);
coleenp@4466 1777 vframeStream st(THREAD);
coleenp@4466 1778
coleenp@4466 1779 BacktraceBuilder bt(backtrace);
duke@435 1780
duke@435 1781 // Unlike fill_in_stack_trace we do not skip fillInStackTrace or throwable init
duke@435 1782 // methods as preallocated errors aren't created by "java" code.
duke@435 1783
duke@435 1784 // fill in as much stack trace as possible
coleenp@4466 1785 typeArrayOop methods = BacktraceBuilder::get_methods(backtrace);
duke@435 1786 int max_chunks = MIN2(methods->length(), (int)MaxJavaStackTraceDepth);
duke@435 1787 int chunk_count = 0;
duke@435 1788
duke@435 1789 for (;!st.at_end(); st.next()) {
coleenp@4466 1790 bt.push(st.method(), st.bci(), CHECK);
duke@435 1791 chunk_count++;
duke@435 1792
duke@435 1793 // Bail-out for deep stacks
duke@435 1794 if (chunk_count >= max_chunks) break;
duke@435 1795 }
dholmes@3018 1796
dholmes@3018 1797 // For Java 7+ we support the Throwable immutability protocol defined for Java 7. This support
dholmes@3018 1798 // was missing in 7u0 so in 7u0 there is a workaround in the Throwable class. That workaround
dholmes@3018 1799 // can be removed in a JDK using this JVM version
dholmes@3018 1800 if (JDK_Version::is_gte_jdk17x_version()) {
dholmes@3018 1801 java_lang_Throwable::set_stacktrace(throwable(), java_lang_Throwable::unassigned_stacktrace());
dholmes@3018 1802 assert(java_lang_Throwable::unassigned_stacktrace() != NULL, "not initialized");
dholmes@3018 1803 }
duke@435 1804 }
duke@435 1805
duke@435 1806
duke@435 1807 int java_lang_Throwable::get_stack_trace_depth(oop throwable, TRAPS) {
duke@435 1808 if (throwable == NULL) {
duke@435 1809 THROW_0(vmSymbols::java_lang_NullPointerException());
duke@435 1810 }
duke@435 1811 objArrayOop chunk = objArrayOop(backtrace(throwable));
duke@435 1812 int depth = 0;
duke@435 1813 if (chunk != NULL) {
duke@435 1814 // Iterate over chunks and count full ones
duke@435 1815 while (true) {
duke@435 1816 objArrayOop next = objArrayOop(chunk->obj_at(trace_next_offset));
duke@435 1817 if (next == NULL) break;
duke@435 1818 depth += trace_chunk_size;
duke@435 1819 chunk = next;
duke@435 1820 }
duke@435 1821 assert(chunk != NULL && chunk->obj_at(trace_next_offset) == NULL, "sanity check");
coleenp@4466 1822 // Count element in remaining partial chunk. NULL value for mirror
coleenp@4466 1823 // marks the end of the stack trace elements that are saved.
coleenp@4466 1824 objArrayOop mirrors = BacktraceBuilder::get_mirrors(chunk);
coleenp@4466 1825 assert(mirrors != NULL, "sanity check");
coleenp@4466 1826 for (int i = 0; i < mirrors->length(); i++) {
coleenp@4466 1827 if (mirrors->obj_at(i) == NULL) break;
duke@435 1828 depth++;
duke@435 1829 }
duke@435 1830 }
duke@435 1831 return depth;
duke@435 1832 }
duke@435 1833
duke@435 1834
duke@435 1835 oop java_lang_Throwable::get_stack_trace_element(oop throwable, int index, TRAPS) {
duke@435 1836 if (throwable == NULL) {
duke@435 1837 THROW_0(vmSymbols::java_lang_NullPointerException());
duke@435 1838 }
duke@435 1839 if (index < 0) {
duke@435 1840 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL);
duke@435 1841 }
duke@435 1842 // Compute how many chunks to skip and index into actual chunk
duke@435 1843 objArrayOop chunk = objArrayOop(backtrace(throwable));
duke@435 1844 int skip_chunks = index / trace_chunk_size;
duke@435 1845 int chunk_index = index % trace_chunk_size;
duke@435 1846 while (chunk != NULL && skip_chunks > 0) {
duke@435 1847 chunk = objArrayOop(chunk->obj_at(trace_next_offset));
duke@435 1848 skip_chunks--;
duke@435 1849 }
duke@435 1850 if (chunk == NULL) {
duke@435 1851 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL);
duke@435 1852 }
sspitsyn@7683 1853 // Get method id, bci, version, mirror and cpref from chunk
coleenp@4466 1854 typeArrayOop methods = BacktraceBuilder::get_methods(chunk);
coleenp@4466 1855 typeArrayOop bcis = BacktraceBuilder::get_bcis(chunk);
coleenp@4466 1856 objArrayOop mirrors = BacktraceBuilder::get_mirrors(chunk);
sspitsyn@7683 1857 typeArrayOop cprefs = BacktraceBuilder::get_cprefs(chunk);
coleenp@4466 1858
coleenp@4466 1859 assert(methods != NULL && bcis != NULL && mirrors != NULL, "sanity check");
coleenp@4466 1860
coleenp@4466 1861 int method = methods->short_at(chunk_index);
coleenp@4466 1862 int version = version_at(bcis->int_at(chunk_index));
coleenp@4466 1863 int bci = bci_at(bcis->int_at(chunk_index));
sspitsyn@7683 1864 int cpref = cprefs->short_at(chunk_index);
coleenp@4466 1865 Handle mirror(THREAD, mirrors->obj_at(chunk_index));
coleenp@4466 1866
duke@435 1867 // Chunk can be partial full
coleenp@4466 1868 if (mirror.is_null()) {
duke@435 1869 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL);
duke@435 1870 }
sspitsyn@7683 1871 oop element = java_lang_StackTraceElement::create(mirror, method, version, bci, cpref, CHECK_0);
duke@435 1872 return element;
duke@435 1873 }
duke@435 1874
coleenp@5835 1875 oop java_lang_StackTraceElement::create(Handle mirror, int method_id,
sspitsyn@7683 1876 int version, int bci, int cpref, TRAPS) {
duke@435 1877 // Allocate java.lang.StackTraceElement instance
coleenp@4037 1878 Klass* k = SystemDictionary::StackTraceElement_klass();
jrose@567 1879 assert(k != NULL, "must be loaded in 1.4+");
duke@435 1880 instanceKlassHandle ik (THREAD, k);
duke@435 1881 if (ik->should_be_initialized()) {
duke@435 1882 ik->initialize(CHECK_0);
duke@435 1883 }
duke@435 1884
duke@435 1885 Handle element = ik->allocate_instance_handle(CHECK_0);
duke@435 1886 // Fill in class name
duke@435 1887 ResourceMark rm(THREAD);
coleenp@4466 1888 InstanceKlass* holder = InstanceKlass::cast(java_lang_Class::as_Klass(mirror()));
coleenp@4466 1889 const char* str = holder->external_name();
duke@435 1890 oop classname = StringTable::intern((char*) str, CHECK_0);
duke@435 1891 java_lang_StackTraceElement::set_declaringClass(element(), classname);
coleenp@4466 1892
sspitsyn@7683 1893 Method* method = holder->method_with_orig_idnum(method_id, version);
sspitsyn@7683 1894
sspitsyn@7683 1895 // The method can be NULL if the requested class version is gone
sspitsyn@7683 1896 Symbol* sym = (method != NULL) ? method->name() : holder->constants()->symbol_at(cpref);
coleenp@5835 1897
duke@435 1898 // Fill in method name
sspitsyn@7683 1899 oop methodname = StringTable::intern(sym, CHECK_0);
duke@435 1900 java_lang_StackTraceElement::set_methodName(element(), methodname);
coleenp@4466 1901
coleenp@4466 1902 if (!version_matches(method, version)) {
coleenp@4466 1903 // The method was redefined, accurate line number information isn't available
coleenp@4466 1904 java_lang_StackTraceElement::set_fileName(element(), NULL);
coleenp@4466 1905 java_lang_StackTraceElement::set_lineNumber(element(), -1);
duke@435 1906 } else {
coleenp@4466 1907 // Fill in source file name and line number.
sspitsyn@7683 1908 // Use a specific ik version as a holder since the mirror might
sspitsyn@7683 1909 // refer to a version that is now obsolete and no longer accessible
sspitsyn@7683 1910 // via the previous versions list.
sspitsyn@7683 1911 holder = holder->get_klass_version(version);
sspitsyn@7683 1912 assert(holder != NULL, "sanity check");
coleenp@4466 1913 Symbol* source = holder->source_file_name();
coleenp@4466 1914 if (ShowHiddenFrames && source == NULL)
coleenp@4466 1915 source = vmSymbols::unknown_class_name();
coleenp@4466 1916 oop filename = StringTable::intern(source, CHECK_0);
coleenp@4466 1917 java_lang_StackTraceElement::set_fileName(element(), filename);
coleenp@4466 1918
coleenp@4466 1919 int line_number = get_line_number(method, bci);
coleenp@4466 1920 java_lang_StackTraceElement::set_lineNumber(element(), line_number);
duke@435 1921 }
duke@435 1922 return element();
duke@435 1923 }
duke@435 1924
coleenp@4466 1925 oop java_lang_StackTraceElement::create(methodHandle method, int bci, TRAPS) {
coleenp@4466 1926 Handle mirror (THREAD, method->method_holder()->java_mirror());
sspitsyn@7683 1927 int method_id = method->orig_method_idnum();
sspitsyn@7683 1928 int cpref = method->name_index();
sspitsyn@7683 1929 return create(mirror, method_id, method->constants()->version(), bci, cpref, THREAD);
coleenp@4466 1930 }
duke@435 1931
duke@435 1932 void java_lang_reflect_AccessibleObject::compute_offsets() {
coleenp@4037 1933 Klass* k = SystemDictionary::reflect_AccessibleObject_klass();
jrose@567 1934 compute_offset(override_offset, k, vmSymbols::override_name(), vmSymbols::bool_signature());
duke@435 1935 }
duke@435 1936
duke@435 1937 jboolean java_lang_reflect_AccessibleObject::override(oop reflect) {
duke@435 1938 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 1939 return (jboolean) reflect->bool_field(override_offset);
duke@435 1940 }
duke@435 1941
duke@435 1942 void java_lang_reflect_AccessibleObject::set_override(oop reflect, jboolean value) {
duke@435 1943 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 1944 reflect->bool_field_put(override_offset, (int) value);
duke@435 1945 }
duke@435 1946
duke@435 1947 void java_lang_reflect_Method::compute_offsets() {
coleenp@4037 1948 Klass* k = SystemDictionary::reflect_Method_klass();
jrose@567 1949 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature());
jrose@567 1950 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature());
jrose@567 1951 compute_offset(returnType_offset, k, vmSymbols::returnType_name(), vmSymbols::class_signature());
jrose@567 1952 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature());
jrose@567 1953 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature());
jrose@567 1954 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature());
jrose@567 1955 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature());
duke@435 1956 // The generic signature and annotations fields are only present in 1.5
duke@435 1957 signature_offset = -1;
duke@435 1958 annotations_offset = -1;
duke@435 1959 parameter_annotations_offset = -1;
duke@435 1960 annotation_default_offset = -1;
stefank@4393 1961 type_annotations_offset = -1;
jrose@567 1962 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature());
jrose@567 1963 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature());
jrose@567 1964 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature());
jrose@567 1965 compute_optional_offset(annotation_default_offset, k, vmSymbols::annotation_default_name(), vmSymbols::byte_array_signature());
stefank@4393 1966 compute_optional_offset(type_annotations_offset, k, vmSymbols::type_annotations_name(), vmSymbols::byte_array_signature());
duke@435 1967 }
duke@435 1968
duke@435 1969 Handle java_lang_reflect_Method::create(TRAPS) {
duke@435 1970 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
coleenp@4037 1971 Klass* klass = SystemDictionary::reflect_Method_klass();
duke@435 1972 // This class is eagerly initialized during VM initialization, since we keep a refence
duke@435 1973 // to one of the methods
coleenp@4037 1974 assert(InstanceKlass::cast(klass)->is_initialized(), "must be initialized");
phh@9507 1975 return InstanceKlass::cast(klass)->allocate_instance_handle(THREAD);
duke@435 1976 }
duke@435 1977
duke@435 1978 oop java_lang_reflect_Method::clazz(oop reflect) {
duke@435 1979 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 1980 return reflect->obj_field(clazz_offset);
duke@435 1981 }
duke@435 1982
duke@435 1983 void java_lang_reflect_Method::set_clazz(oop reflect, oop value) {
duke@435 1984 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 1985 reflect->obj_field_put(clazz_offset, value);
duke@435 1986 }
duke@435 1987
duke@435 1988 int java_lang_reflect_Method::slot(oop reflect) {
duke@435 1989 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 1990 return reflect->int_field(slot_offset);
duke@435 1991 }
duke@435 1992
duke@435 1993 void java_lang_reflect_Method::set_slot(oop reflect, int value) {
duke@435 1994 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 1995 reflect->int_field_put(slot_offset, value);
duke@435 1996 }
duke@435 1997
duke@435 1998 oop java_lang_reflect_Method::name(oop method) {
duke@435 1999 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2000 return method->obj_field(name_offset);
duke@435 2001 }
duke@435 2002
duke@435 2003 void java_lang_reflect_Method::set_name(oop method, oop value) {
duke@435 2004 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2005 method->obj_field_put(name_offset, value);
duke@435 2006 }
duke@435 2007
duke@435 2008 oop java_lang_reflect_Method::return_type(oop method) {
duke@435 2009 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2010 return method->obj_field(returnType_offset);
duke@435 2011 }
duke@435 2012
duke@435 2013 void java_lang_reflect_Method::set_return_type(oop method, oop value) {
duke@435 2014 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2015 method->obj_field_put(returnType_offset, value);
duke@435 2016 }
duke@435 2017
duke@435 2018 oop java_lang_reflect_Method::parameter_types(oop method) {
duke@435 2019 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2020 return method->obj_field(parameterTypes_offset);
duke@435 2021 }
duke@435 2022
duke@435 2023 void java_lang_reflect_Method::set_parameter_types(oop method, oop value) {
duke@435 2024 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2025 method->obj_field_put(parameterTypes_offset, value);
duke@435 2026 }
duke@435 2027
duke@435 2028 oop java_lang_reflect_Method::exception_types(oop method) {
duke@435 2029 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2030 return method->obj_field(exceptionTypes_offset);
duke@435 2031 }
duke@435 2032
duke@435 2033 void java_lang_reflect_Method::set_exception_types(oop method, oop value) {
duke@435 2034 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2035 method->obj_field_put(exceptionTypes_offset, value);
duke@435 2036 }
duke@435 2037
duke@435 2038 int java_lang_reflect_Method::modifiers(oop method) {
duke@435 2039 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2040 return method->int_field(modifiers_offset);
duke@435 2041 }
duke@435 2042
duke@435 2043 void java_lang_reflect_Method::set_modifiers(oop method, int value) {
duke@435 2044 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2045 method->int_field_put(modifiers_offset, value);
duke@435 2046 }
duke@435 2047
duke@435 2048 bool java_lang_reflect_Method::has_signature_field() {
duke@435 2049 return (signature_offset >= 0);
duke@435 2050 }
duke@435 2051
duke@435 2052 oop java_lang_reflect_Method::signature(oop method) {
duke@435 2053 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2054 assert(has_signature_field(), "signature field must be present");
duke@435 2055 return method->obj_field(signature_offset);
duke@435 2056 }
duke@435 2057
duke@435 2058 void java_lang_reflect_Method::set_signature(oop method, oop value) {
duke@435 2059 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2060 assert(has_signature_field(), "signature field must be present");
duke@435 2061 method->obj_field_put(signature_offset, value);
duke@435 2062 }
duke@435 2063
duke@435 2064 bool java_lang_reflect_Method::has_annotations_field() {
duke@435 2065 return (annotations_offset >= 0);
duke@435 2066 }
duke@435 2067
duke@435 2068 oop java_lang_reflect_Method::annotations(oop method) {
duke@435 2069 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2070 assert(has_annotations_field(), "annotations field must be present");
duke@435 2071 return method->obj_field(annotations_offset);
duke@435 2072 }
duke@435 2073
duke@435 2074 void java_lang_reflect_Method::set_annotations(oop method, oop value) {
duke@435 2075 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2076 assert(has_annotations_field(), "annotations field must be present");
duke@435 2077 method->obj_field_put(annotations_offset, value);
duke@435 2078 }
duke@435 2079
duke@435 2080 bool java_lang_reflect_Method::has_parameter_annotations_field() {
duke@435 2081 return (parameter_annotations_offset >= 0);
duke@435 2082 }
duke@435 2083
duke@435 2084 oop java_lang_reflect_Method::parameter_annotations(oop method) {
duke@435 2085 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2086 assert(has_parameter_annotations_field(), "parameter annotations field must be present");
duke@435 2087 return method->obj_field(parameter_annotations_offset);
duke@435 2088 }
duke@435 2089
duke@435 2090 void java_lang_reflect_Method::set_parameter_annotations(oop method, oop value) {
duke@435 2091 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2092 assert(has_parameter_annotations_field(), "parameter annotations field must be present");
duke@435 2093 method->obj_field_put(parameter_annotations_offset, value);
duke@435 2094 }
duke@435 2095
duke@435 2096 bool java_lang_reflect_Method::has_annotation_default_field() {
duke@435 2097 return (annotation_default_offset >= 0);
duke@435 2098 }
duke@435 2099
duke@435 2100 oop java_lang_reflect_Method::annotation_default(oop method) {
duke@435 2101 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2102 assert(has_annotation_default_field(), "annotation default field must be present");
duke@435 2103 return method->obj_field(annotation_default_offset);
duke@435 2104 }
duke@435 2105
duke@435 2106 void java_lang_reflect_Method::set_annotation_default(oop method, oop value) {
duke@435 2107 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2108 assert(has_annotation_default_field(), "annotation default field must be present");
duke@435 2109 method->obj_field_put(annotation_default_offset, value);
duke@435 2110 }
duke@435 2111
stefank@4393 2112 bool java_lang_reflect_Method::has_type_annotations_field() {
stefank@4393 2113 return (type_annotations_offset >= 0);
stefank@4393 2114 }
stefank@4393 2115
stefank@4393 2116 oop java_lang_reflect_Method::type_annotations(oop method) {
stefank@4393 2117 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
stefank@4393 2118 assert(has_type_annotations_field(), "type_annotations field must be present");
stefank@4393 2119 return method->obj_field(type_annotations_offset);
stefank@4393 2120 }
stefank@4393 2121
stefank@4393 2122 void java_lang_reflect_Method::set_type_annotations(oop method, oop value) {
stefank@4393 2123 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
stefank@4393 2124 assert(has_type_annotations_field(), "type_annotations field must be present");
stefank@4393 2125 method->obj_field_put(type_annotations_offset, value);
stefank@4393 2126 }
stefank@4393 2127
duke@435 2128 void java_lang_reflect_Constructor::compute_offsets() {
coleenp@4037 2129 Klass* k = SystemDictionary::reflect_Constructor_klass();
jrose@567 2130 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature());
jrose@567 2131 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature());
jrose@567 2132 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature());
jrose@567 2133 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature());
jrose@567 2134 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature());
duke@435 2135 // The generic signature and annotations fields are only present in 1.5
duke@435 2136 signature_offset = -1;
duke@435 2137 annotations_offset = -1;
duke@435 2138 parameter_annotations_offset = -1;
stefank@4393 2139 type_annotations_offset = -1;
jrose@567 2140 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature());
jrose@567 2141 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature());
jrose@567 2142 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature());
stefank@4393 2143 compute_optional_offset(type_annotations_offset, k, vmSymbols::type_annotations_name(), vmSymbols::byte_array_signature());
duke@435 2144 }
duke@435 2145
duke@435 2146 Handle java_lang_reflect_Constructor::create(TRAPS) {
duke@435 2147 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
coleenp@2497 2148 Symbol* name = vmSymbols::java_lang_reflect_Constructor();
coleenp@4037 2149 Klass* k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH);
duke@435 2150 instanceKlassHandle klass (THREAD, k);
duke@435 2151 // Ensure it is initialized
duke@435 2152 klass->initialize(CHECK_NH);
duke@435 2153 return klass->allocate_instance_handle(CHECK_NH);
duke@435 2154 }
duke@435 2155
duke@435 2156 oop java_lang_reflect_Constructor::clazz(oop reflect) {
duke@435 2157 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2158 return reflect->obj_field(clazz_offset);
duke@435 2159 }
duke@435 2160
duke@435 2161 void java_lang_reflect_Constructor::set_clazz(oop reflect, oop value) {
duke@435 2162 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2163 reflect->obj_field_put(clazz_offset, value);
duke@435 2164 }
duke@435 2165
duke@435 2166 oop java_lang_reflect_Constructor::parameter_types(oop constructor) {
duke@435 2167 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2168 return constructor->obj_field(parameterTypes_offset);
duke@435 2169 }
duke@435 2170
duke@435 2171 void java_lang_reflect_Constructor::set_parameter_types(oop constructor, oop value) {
duke@435 2172 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2173 constructor->obj_field_put(parameterTypes_offset, value);
duke@435 2174 }
duke@435 2175
duke@435 2176 oop java_lang_reflect_Constructor::exception_types(oop constructor) {
duke@435 2177 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2178 return constructor->obj_field(exceptionTypes_offset);
duke@435 2179 }
duke@435 2180
duke@435 2181 void java_lang_reflect_Constructor::set_exception_types(oop constructor, oop value) {
duke@435 2182 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2183 constructor->obj_field_put(exceptionTypes_offset, value);
duke@435 2184 }
duke@435 2185
duke@435 2186 int java_lang_reflect_Constructor::slot(oop reflect) {
duke@435 2187 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2188 return reflect->int_field(slot_offset);
duke@435 2189 }
duke@435 2190
duke@435 2191 void java_lang_reflect_Constructor::set_slot(oop reflect, int value) {
duke@435 2192 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2193 reflect->int_field_put(slot_offset, value);
duke@435 2194 }
duke@435 2195
duke@435 2196 int java_lang_reflect_Constructor::modifiers(oop constructor) {
duke@435 2197 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2198 return constructor->int_field(modifiers_offset);
duke@435 2199 }
duke@435 2200
duke@435 2201 void java_lang_reflect_Constructor::set_modifiers(oop constructor, int value) {
duke@435 2202 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2203 constructor->int_field_put(modifiers_offset, value);
duke@435 2204 }
duke@435 2205
duke@435 2206 bool java_lang_reflect_Constructor::has_signature_field() {
duke@435 2207 return (signature_offset >= 0);
duke@435 2208 }
duke@435 2209
duke@435 2210 oop java_lang_reflect_Constructor::signature(oop constructor) {
duke@435 2211 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2212 assert(has_signature_field(), "signature field must be present");
duke@435 2213 return constructor->obj_field(signature_offset);
duke@435 2214 }
duke@435 2215
duke@435 2216 void java_lang_reflect_Constructor::set_signature(oop constructor, oop value) {
duke@435 2217 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2218 assert(has_signature_field(), "signature field must be present");
duke@435 2219 constructor->obj_field_put(signature_offset, value);
duke@435 2220 }
duke@435 2221
duke@435 2222 bool java_lang_reflect_Constructor::has_annotations_field() {
duke@435 2223 return (annotations_offset >= 0);
duke@435 2224 }
duke@435 2225
duke@435 2226 oop java_lang_reflect_Constructor::annotations(oop constructor) {
duke@435 2227 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2228 assert(has_annotations_field(), "annotations field must be present");
duke@435 2229 return constructor->obj_field(annotations_offset);
duke@435 2230 }
duke@435 2231
duke@435 2232 void java_lang_reflect_Constructor::set_annotations(oop constructor, oop value) {
duke@435 2233 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2234 assert(has_annotations_field(), "annotations field must be present");
duke@435 2235 constructor->obj_field_put(annotations_offset, value);
duke@435 2236 }
duke@435 2237
duke@435 2238 bool java_lang_reflect_Constructor::has_parameter_annotations_field() {
duke@435 2239 return (parameter_annotations_offset >= 0);
duke@435 2240 }
duke@435 2241
duke@435 2242 oop java_lang_reflect_Constructor::parameter_annotations(oop method) {
duke@435 2243 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2244 assert(has_parameter_annotations_field(), "parameter annotations field must be present");
duke@435 2245 return method->obj_field(parameter_annotations_offset);
duke@435 2246 }
duke@435 2247
duke@435 2248 void java_lang_reflect_Constructor::set_parameter_annotations(oop method, oop value) {
duke@435 2249 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2250 assert(has_parameter_annotations_field(), "parameter annotations field must be present");
duke@435 2251 method->obj_field_put(parameter_annotations_offset, value);
duke@435 2252 }
duke@435 2253
stefank@4393 2254 bool java_lang_reflect_Constructor::has_type_annotations_field() {
stefank@4393 2255 return (type_annotations_offset >= 0);
stefank@4393 2256 }
stefank@4393 2257
stefank@4393 2258 oop java_lang_reflect_Constructor::type_annotations(oop constructor) {
stefank@4393 2259 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
stefank@4393 2260 assert(has_type_annotations_field(), "type_annotations field must be present");
stefank@4393 2261 return constructor->obj_field(type_annotations_offset);
stefank@4393 2262 }
stefank@4393 2263
stefank@4393 2264 void java_lang_reflect_Constructor::set_type_annotations(oop constructor, oop value) {
stefank@4393 2265 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
stefank@4393 2266 assert(has_type_annotations_field(), "type_annotations field must be present");
stefank@4393 2267 constructor->obj_field_put(type_annotations_offset, value);
stefank@4393 2268 }
stefank@4393 2269
duke@435 2270 void java_lang_reflect_Field::compute_offsets() {
coleenp@4037 2271 Klass* k = SystemDictionary::reflect_Field_klass();
jrose@567 2272 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature());
jrose@567 2273 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature());
jrose@567 2274 compute_offset(type_offset, k, vmSymbols::type_name(), vmSymbols::class_signature());
jrose@567 2275 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature());
jrose@567 2276 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature());
duke@435 2277 // The generic signature and annotations fields are only present in 1.5
duke@435 2278 signature_offset = -1;
duke@435 2279 annotations_offset = -1;
stefank@4393 2280 type_annotations_offset = -1;
jrose@567 2281 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature());
jrose@567 2282 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature());
stefank@4393 2283 compute_optional_offset(type_annotations_offset, k, vmSymbols::type_annotations_name(), vmSymbols::byte_array_signature());
duke@435 2284 }
duke@435 2285
duke@435 2286 Handle java_lang_reflect_Field::create(TRAPS) {
duke@435 2287 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
coleenp@2497 2288 Symbol* name = vmSymbols::java_lang_reflect_Field();
coleenp@4037 2289 Klass* k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH);
duke@435 2290 instanceKlassHandle klass (THREAD, k);
duke@435 2291 // Ensure it is initialized
duke@435 2292 klass->initialize(CHECK_NH);
duke@435 2293 return klass->allocate_instance_handle(CHECK_NH);
duke@435 2294 }
duke@435 2295
duke@435 2296 oop java_lang_reflect_Field::clazz(oop reflect) {
duke@435 2297 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2298 return reflect->obj_field(clazz_offset);
duke@435 2299 }
duke@435 2300
duke@435 2301 void java_lang_reflect_Field::set_clazz(oop reflect, oop value) {
duke@435 2302 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2303 reflect->obj_field_put(clazz_offset, value);
duke@435 2304 }
duke@435 2305
duke@435 2306 oop java_lang_reflect_Field::name(oop field) {
duke@435 2307 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2308 return field->obj_field(name_offset);
duke@435 2309 }
duke@435 2310
duke@435 2311 void java_lang_reflect_Field::set_name(oop field, oop value) {
duke@435 2312 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2313 field->obj_field_put(name_offset, value);
duke@435 2314 }
duke@435 2315
duke@435 2316 oop java_lang_reflect_Field::type(oop field) {
duke@435 2317 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2318 return field->obj_field(type_offset);
duke@435 2319 }
duke@435 2320
duke@435 2321 void java_lang_reflect_Field::set_type(oop field, oop value) {
duke@435 2322 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2323 field->obj_field_put(type_offset, value);
duke@435 2324 }
duke@435 2325
duke@435 2326 int java_lang_reflect_Field::slot(oop reflect) {
duke@435 2327 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2328 return reflect->int_field(slot_offset);
duke@435 2329 }
duke@435 2330
duke@435 2331 void java_lang_reflect_Field::set_slot(oop reflect, int value) {
duke@435 2332 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2333 reflect->int_field_put(slot_offset, value);
duke@435 2334 }
duke@435 2335
duke@435 2336 int java_lang_reflect_Field::modifiers(oop field) {
duke@435 2337 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2338 return field->int_field(modifiers_offset);
duke@435 2339 }
duke@435 2340
duke@435 2341 void java_lang_reflect_Field::set_modifiers(oop field, int value) {
duke@435 2342 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2343 field->int_field_put(modifiers_offset, value);
duke@435 2344 }
duke@435 2345
duke@435 2346 bool java_lang_reflect_Field::has_signature_field() {
duke@435 2347 return (signature_offset >= 0);
duke@435 2348 }
duke@435 2349
duke@435 2350 oop java_lang_reflect_Field::signature(oop field) {
duke@435 2351 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2352 assert(has_signature_field(), "signature field must be present");
duke@435 2353 return field->obj_field(signature_offset);
duke@435 2354 }
duke@435 2355
duke@435 2356 void java_lang_reflect_Field::set_signature(oop field, oop value) {
duke@435 2357 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2358 assert(has_signature_field(), "signature field must be present");
duke@435 2359 field->obj_field_put(signature_offset, value);
duke@435 2360 }
duke@435 2361
duke@435 2362 bool java_lang_reflect_Field::has_annotations_field() {
duke@435 2363 return (annotations_offset >= 0);
duke@435 2364 }
duke@435 2365
duke@435 2366 oop java_lang_reflect_Field::annotations(oop field) {
duke@435 2367 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2368 assert(has_annotations_field(), "annotations field must be present");
duke@435 2369 return field->obj_field(annotations_offset);
duke@435 2370 }
duke@435 2371
duke@435 2372 void java_lang_reflect_Field::set_annotations(oop field, oop value) {
duke@435 2373 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2374 assert(has_annotations_field(), "annotations field must be present");
duke@435 2375 field->obj_field_put(annotations_offset, value);
duke@435 2376 }
duke@435 2377
stefank@4393 2378 bool java_lang_reflect_Field::has_type_annotations_field() {
stefank@4393 2379 return (type_annotations_offset >= 0);
stefank@4393 2380 }
stefank@4393 2381
stefank@4393 2382 oop java_lang_reflect_Field::type_annotations(oop field) {
stefank@4393 2383 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
stefank@4393 2384 assert(has_type_annotations_field(), "type_annotations field must be present");
stefank@4393 2385 return field->obj_field(type_annotations_offset);
stefank@4393 2386 }
stefank@4393 2387
stefank@4393 2388 void java_lang_reflect_Field::set_type_annotations(oop field, oop value) {
stefank@4393 2389 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
stefank@4393 2390 assert(has_type_annotations_field(), "type_annotations field must be present");
stefank@4393 2391 field->obj_field_put(type_annotations_offset, value);
stefank@4393 2392 }
duke@435 2393
duke@435 2394 void sun_reflect_ConstantPool::compute_offsets() {
coleenp@4037 2395 Klass* k = SystemDictionary::reflect_ConstantPool_klass();
duke@435 2396 // This null test can be removed post beta
duke@435 2397 if (k != NULL) {
coleenp@4037 2398 // The field is called ConstantPool* in the sun.reflect.ConstantPool class.
coleenp@4037 2399 compute_offset(_oop_offset, k, vmSymbols::ConstantPool_name(), vmSymbols::object_signature());
duke@435 2400 }
duke@435 2401 }
duke@435 2402
coleenp@4398 2403 void java_lang_reflect_Parameter::compute_offsets() {
coleenp@4398 2404 Klass* k = SystemDictionary::reflect_Parameter_klass();
coleenp@4398 2405 if(NULL != k) {
coleenp@4398 2406 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature());
coleenp@4398 2407 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature());
coleenp@4398 2408 compute_offset(index_offset, k, vmSymbols::index_name(), vmSymbols::int_signature());
coleenp@4398 2409 compute_offset(executable_offset, k, vmSymbols::executable_name(), vmSymbols::executable_signature());
coleenp@4398 2410 }
coleenp@4398 2411 }
coleenp@4398 2412
coleenp@4398 2413 Handle java_lang_reflect_Parameter::create(TRAPS) {
coleenp@4398 2414 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
coleenp@4398 2415 Symbol* name = vmSymbols::java_lang_reflect_Parameter();
coleenp@4398 2416 Klass* k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH);
coleenp@4398 2417 instanceKlassHandle klass (THREAD, k);
coleenp@4398 2418 // Ensure it is initialized
coleenp@4398 2419 klass->initialize(CHECK_NH);
coleenp@4398 2420 return klass->allocate_instance_handle(CHECK_NH);
coleenp@4398 2421 }
coleenp@4398 2422
coleenp@4398 2423 oop java_lang_reflect_Parameter::name(oop param) {
coleenp@4398 2424 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
coleenp@4398 2425 return param->obj_field(name_offset);
coleenp@4398 2426 }
coleenp@4398 2427
coleenp@4398 2428 void java_lang_reflect_Parameter::set_name(oop param, oop value) {
coleenp@4398 2429 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
coleenp@4398 2430 param->obj_field_put(name_offset, value);
coleenp@4398 2431 }
coleenp@4398 2432
coleenp@4398 2433 int java_lang_reflect_Parameter::modifiers(oop param) {
coleenp@4398 2434 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
coleenp@4398 2435 return param->int_field(modifiers_offset);
coleenp@4398 2436 }
coleenp@4398 2437
coleenp@4398 2438 void java_lang_reflect_Parameter::set_modifiers(oop param, int value) {
coleenp@4398 2439 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
coleenp@4398 2440 param->int_field_put(modifiers_offset, value);
coleenp@4398 2441 }
coleenp@4398 2442
coleenp@4398 2443 int java_lang_reflect_Parameter::index(oop param) {
coleenp@4398 2444 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
coleenp@4398 2445 return param->int_field(index_offset);
coleenp@4398 2446 }
coleenp@4398 2447
coleenp@4398 2448 void java_lang_reflect_Parameter::set_index(oop param, int value) {
coleenp@4398 2449 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
coleenp@4398 2450 param->int_field_put(index_offset, value);
coleenp@4398 2451 }
coleenp@4398 2452
coleenp@4398 2453 oop java_lang_reflect_Parameter::executable(oop param) {
coleenp@4398 2454 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
coleenp@4398 2455 return param->obj_field(executable_offset);
coleenp@4398 2456 }
coleenp@4398 2457
coleenp@4398 2458 void java_lang_reflect_Parameter::set_executable(oop param, oop value) {
coleenp@4398 2459 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
coleenp@4398 2460 param->obj_field_put(executable_offset, value);
coleenp@4398 2461 }
coleenp@4398 2462
duke@435 2463
duke@435 2464 Handle sun_reflect_ConstantPool::create(TRAPS) {
duke@435 2465 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
coleenp@4037 2466 Klass* k = SystemDictionary::reflect_ConstantPool_klass();
duke@435 2467 instanceKlassHandle klass (THREAD, k);
duke@435 2468 // Ensure it is initialized
duke@435 2469 klass->initialize(CHECK_NH);
duke@435 2470 return klass->allocate_instance_handle(CHECK_NH);
duke@435 2471 }
duke@435 2472
duke@435 2473
coleenp@4037 2474 void sun_reflect_ConstantPool::set_cp(oop reflect, ConstantPool* value) {
duke@435 2475 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
coleenp@4037 2476 oop mirror = value->pool_holder()->java_mirror();
coleenp@4037 2477 // Save the mirror to get back the constant pool.
coleenp@4037 2478 reflect->obj_field_put(_oop_offset, mirror);
duke@435 2479 }
duke@435 2480
coleenp@4037 2481 ConstantPool* sun_reflect_ConstantPool::get_cp(oop reflect) {
duke@435 2482 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
coleenp@4037 2483
coleenp@4037 2484 oop mirror = reflect->obj_field(_oop_offset);
coleenp@4037 2485 Klass* k = java_lang_Class::as_Klass(mirror);
coleenp@4037 2486 assert(k->oop_is_instance(), "Must be");
coleenp@4037 2487
coleenp@4037 2488 // Get the constant pool back from the klass. Since class redefinition
coleenp@4037 2489 // merges the new constant pool into the old, this is essentially the
coleenp@4037 2490 // same constant pool as the original. If constant pool merging is
coleenp@4037 2491 // no longer done in the future, this will have to change to save
coleenp@4037 2492 // the original.
coleenp@4037 2493 return InstanceKlass::cast(k)->constants();
duke@435 2494 }
duke@435 2495
duke@435 2496 void sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets() {
coleenp@4037 2497 Klass* k = SystemDictionary::reflect_UnsafeStaticFieldAccessorImpl_klass();
duke@435 2498 // This null test can be removed post beta
duke@435 2499 if (k != NULL) {
jrose@567 2500 compute_offset(_base_offset, k,
duke@435 2501 vmSymbols::base_name(), vmSymbols::object_signature());
duke@435 2502 }
duke@435 2503 }
duke@435 2504
jrose@567 2505 oop java_lang_boxing_object::initialize_and_allocate(BasicType type, TRAPS) {
coleenp@4037 2506 Klass* k = SystemDictionary::box_klass(type);
jrose@567 2507 if (k == NULL) return NULL;
jrose@567 2508 instanceKlassHandle h (THREAD, k);
jrose@567 2509 if (!h->is_initialized()) h->initialize(CHECK_0);
jrose@567 2510 return h->allocate_instance(THREAD);
duke@435 2511 }
duke@435 2512
duke@435 2513
duke@435 2514 oop java_lang_boxing_object::create(BasicType type, jvalue* value, TRAPS) {
jrose@567 2515 oop box = initialize_and_allocate(type, CHECK_0);
jrose@567 2516 if (box == NULL) return NULL;
duke@435 2517 switch (type) {
duke@435 2518 case T_BOOLEAN:
duke@435 2519 box->bool_field_put(value_offset, value->z);
duke@435 2520 break;
duke@435 2521 case T_CHAR:
duke@435 2522 box->char_field_put(value_offset, value->c);
duke@435 2523 break;
duke@435 2524 case T_FLOAT:
duke@435 2525 box->float_field_put(value_offset, value->f);
duke@435 2526 break;
duke@435 2527 case T_DOUBLE:
kvn@600 2528 box->double_field_put(long_value_offset, value->d);
duke@435 2529 break;
duke@435 2530 case T_BYTE:
duke@435 2531 box->byte_field_put(value_offset, value->b);
duke@435 2532 break;
duke@435 2533 case T_SHORT:
duke@435 2534 box->short_field_put(value_offset, value->s);
duke@435 2535 break;
duke@435 2536 case T_INT:
duke@435 2537 box->int_field_put(value_offset, value->i);
duke@435 2538 break;
duke@435 2539 case T_LONG:
kvn@600 2540 box->long_field_put(long_value_offset, value->j);
duke@435 2541 break;
duke@435 2542 default:
duke@435 2543 return NULL;
duke@435 2544 }
duke@435 2545 return box;
duke@435 2546 }
duke@435 2547
duke@435 2548
jrose@567 2549 BasicType java_lang_boxing_object::basic_type(oop box) {
jrose@567 2550 if (box == NULL) return T_ILLEGAL;
jrose@567 2551 BasicType type = SystemDictionary::box_klass_type(box->klass());
jrose@567 2552 if (type == T_OBJECT) // 'unknown' value returned by SD::bkt
jrose@567 2553 return T_ILLEGAL;
jrose@567 2554 return type;
jrose@567 2555 }
jrose@567 2556
jrose@567 2557
duke@435 2558 BasicType java_lang_boxing_object::get_value(oop box, jvalue* value) {
jrose@567 2559 BasicType type = SystemDictionary::box_klass_type(box->klass());
jrose@567 2560 switch (type) {
jrose@567 2561 case T_BOOLEAN:
duke@435 2562 value->z = box->bool_field(value_offset);
jrose@567 2563 break;
jrose@567 2564 case T_CHAR:
duke@435 2565 value->c = box->char_field(value_offset);
jrose@567 2566 break;
jrose@567 2567 case T_FLOAT:
duke@435 2568 value->f = box->float_field(value_offset);
jrose@567 2569 break;
jrose@567 2570 case T_DOUBLE:
kvn@600 2571 value->d = box->double_field(long_value_offset);
jrose@567 2572 break;
jrose@567 2573 case T_BYTE:
duke@435 2574 value->b = box->byte_field(value_offset);
jrose@567 2575 break;
jrose@567 2576 case T_SHORT:
duke@435 2577 value->s = box->short_field(value_offset);
jrose@567 2578 break;
jrose@567 2579 case T_INT:
duke@435 2580 value->i = box->int_field(value_offset);
jrose@567 2581 break;
jrose@567 2582 case T_LONG:
kvn@600 2583 value->j = box->long_field(long_value_offset);
jrose@567 2584 break;
jrose@567 2585 default:
jrose@567 2586 return T_ILLEGAL;
jrose@567 2587 } // end switch
jrose@567 2588 return type;
duke@435 2589 }
duke@435 2590
duke@435 2591
duke@435 2592 BasicType java_lang_boxing_object::set_value(oop box, jvalue* value) {
jrose@567 2593 BasicType type = SystemDictionary::box_klass_type(box->klass());
jrose@567 2594 switch (type) {
jrose@567 2595 case T_BOOLEAN:
duke@435 2596 box->bool_field_put(value_offset, value->z);
jrose@567 2597 break;
jrose@567 2598 case T_CHAR:
duke@435 2599 box->char_field_put(value_offset, value->c);
jrose@567 2600 break;
jrose@567 2601 case T_FLOAT:
duke@435 2602 box->float_field_put(value_offset, value->f);
jrose@567 2603 break;
jrose@567 2604 case T_DOUBLE:
kvn@600 2605 box->double_field_put(long_value_offset, value->d);
jrose@567 2606 break;
jrose@567 2607 case T_BYTE:
duke@435 2608 box->byte_field_put(value_offset, value->b);
jrose@567 2609 break;
jrose@567 2610 case T_SHORT:
duke@435 2611 box->short_field_put(value_offset, value->s);
jrose@567 2612 break;
jrose@567 2613 case T_INT:
duke@435 2614 box->int_field_put(value_offset, value->i);
jrose@567 2615 break;
jrose@567 2616 case T_LONG:
kvn@600 2617 box->long_field_put(long_value_offset, value->j);
jrose@567 2618 break;
jrose@567 2619 default:
jrose@567 2620 return T_ILLEGAL;
jrose@567 2621 } // end switch
jrose@567 2622 return type;
duke@435 2623 }
duke@435 2624
duke@435 2625
jrose@1100 2626 void java_lang_boxing_object::print(BasicType type, jvalue* value, outputStream* st) {
jrose@1100 2627 switch (type) {
jrose@1100 2628 case T_BOOLEAN: st->print("%s", value->z ? "true" : "false"); break;
jrose@1100 2629 case T_CHAR: st->print("%d", value->c); break;
jrose@1100 2630 case T_BYTE: st->print("%d", value->b); break;
jrose@1100 2631 case T_SHORT: st->print("%d", value->s); break;
jrose@1100 2632 case T_INT: st->print("%d", value->i); break;
jrose@1100 2633 case T_LONG: st->print(INT64_FORMAT, value->j); break;
jrose@1100 2634 case T_FLOAT: st->print("%f", value->f); break;
jrose@1100 2635 case T_DOUBLE: st->print("%lf", value->d); break;
jrose@1100 2636 default: st->print("type %d?", type); break;
jrose@1100 2637 }
jrose@1100 2638 }
jrose@1100 2639
jrose@1100 2640
duke@435 2641 // Support for java_lang_ref_Reference
coleenp@4037 2642 HeapWord *java_lang_ref_Reference::pending_list_lock_addr() {
coleenp@4037 2643 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Reference_klass());
coleenp@4037 2644 address addr = ik->static_field_addr(static_lock_offset);
coleenp@4037 2645 return (HeapWord*) addr;
coleenp@4037 2646 }
coleenp@4037 2647
coleenp@548 2648 oop java_lang_ref_Reference::pending_list_lock() {
coleenp@4037 2649 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Reference_klass());
never@2658 2650 address addr = ik->static_field_addr(static_lock_offset);
coleenp@548 2651 if (UseCompressedOops) {
coleenp@548 2652 return oopDesc::load_decode_heap_oop((narrowOop *)addr);
coleenp@548 2653 } else {
coleenp@548 2654 return oopDesc::load_decode_heap_oop((oop*)addr);
coleenp@548 2655 }
duke@435 2656 }
duke@435 2657
coleenp@548 2658 HeapWord *java_lang_ref_Reference::pending_list_addr() {
coleenp@4037 2659 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Reference_klass());
never@2658 2660 address addr = ik->static_field_addr(static_pending_offset);
coleenp@548 2661 // XXX This might not be HeapWord aligned, almost rather be char *.
coleenp@548 2662 return (HeapWord*)addr;
duke@435 2663 }
duke@435 2664
coleenp@548 2665 oop java_lang_ref_Reference::pending_list() {
coleenp@548 2666 char *addr = (char *)pending_list_addr();
coleenp@548 2667 if (UseCompressedOops) {
coleenp@548 2668 return oopDesc::load_decode_heap_oop((narrowOop *)addr);
coleenp@548 2669 } else {
coleenp@548 2670 return oopDesc::load_decode_heap_oop((oop*)addr);
coleenp@548 2671 }
duke@435 2672 }
duke@435 2673
duke@435 2674
duke@435 2675 // Support for java_lang_ref_SoftReference
duke@435 2676
duke@435 2677 jlong java_lang_ref_SoftReference::timestamp(oop ref) {
duke@435 2678 return ref->long_field(timestamp_offset);
duke@435 2679 }
duke@435 2680
duke@435 2681 jlong java_lang_ref_SoftReference::clock() {
coleenp@4037 2682 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::SoftReference_klass());
never@2658 2683 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset);
never@2658 2684 return *offset;
duke@435 2685 }
duke@435 2686
duke@435 2687 void java_lang_ref_SoftReference::set_clock(jlong value) {
coleenp@4037 2688 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::SoftReference_klass());
never@2658 2689 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset);
never@2658 2690 *offset = value;
duke@435 2691 }
duke@435 2692
kbarrett@9099 2693 // Support for java_lang_ref_ReferenceQueue
kbarrett@9099 2694
kbarrett@9099 2695 oop java_lang_ref_ReferenceQueue::NULL_queue() {
kbarrett@9099 2696 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::ReferenceQueue_klass());
kbarrett@9099 2697 oop mirror = ik->java_mirror();
kbarrett@9099 2698 return mirror->obj_field(static_NULL_queue_offset);
kbarrett@9099 2699 }
kbarrett@9099 2700
kbarrett@9099 2701 oop java_lang_ref_ReferenceQueue::ENQUEUED_queue() {
kbarrett@9099 2702 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::ReferenceQueue_klass());
kbarrett@9099 2703 oop mirror = ik->java_mirror();
kbarrett@9099 2704 return mirror->obj_field(static_ENQUEUED_queue_offset);
kbarrett@9099 2705 }
kbarrett@9099 2706
kbarrett@9099 2707 void java_lang_ref_ReferenceQueue::compute_offsets() {
kbarrett@9099 2708 Klass* k = SystemDictionary::ReferenceQueue_klass();
kbarrett@9099 2709 compute_offset(static_NULL_queue_offset,
kbarrett@9099 2710 k,
kbarrett@9099 2711 vmSymbols::referencequeue_null_name(),
kbarrett@9099 2712 vmSymbols::referencequeue_signature());
kbarrett@9099 2713 compute_offset(static_ENQUEUED_queue_offset,
kbarrett@9099 2714 k,
kbarrett@9099 2715 vmSymbols::referencequeue_enqueued_name(),
kbarrett@9099 2716 vmSymbols::referencequeue_signature());
kbarrett@9099 2717 }
kbarrett@9099 2718
sspitsyn@5496 2719 // Support for java_lang_invoke_DirectMethodHandle
sspitsyn@5496 2720
sspitsyn@5496 2721 int java_lang_invoke_DirectMethodHandle::_member_offset;
sspitsyn@5496 2722
sspitsyn@5496 2723 oop java_lang_invoke_DirectMethodHandle::member(oop dmh) {
sspitsyn@5496 2724 oop member_name = NULL;
sspitsyn@5496 2725 bool is_dmh = dmh->is_oop() && java_lang_invoke_DirectMethodHandle::is_instance(dmh);
sspitsyn@5496 2726 assert(is_dmh, "a DirectMethodHandle oop is expected");
sspitsyn@5496 2727 if (is_dmh) {
sspitsyn@5496 2728 member_name = dmh->obj_field(member_offset_in_bytes());
sspitsyn@5496 2729 }
sspitsyn@5496 2730 return member_name;
sspitsyn@5496 2731 }
sspitsyn@5496 2732
sspitsyn@5496 2733 void java_lang_invoke_DirectMethodHandle::compute_offsets() {
sspitsyn@5496 2734 Klass* klass_oop = SystemDictionary::DirectMethodHandle_klass();
sspitsyn@5496 2735 if (klass_oop != NULL && EnableInvokeDynamic) {
sspitsyn@5496 2736 compute_offset(_member_offset, klass_oop, vmSymbols::member_name(), vmSymbols::java_lang_invoke_MemberName_signature());
sspitsyn@5496 2737 }
sspitsyn@5496 2738 }
duke@435 2739
jrose@2639 2740 // Support for java_lang_invoke_MethodHandle
jrose@2639 2741
jrose@2639 2742 int java_lang_invoke_MethodHandle::_type_offset;
twisti@3969 2743 int java_lang_invoke_MethodHandle::_form_offset;
jrose@2639 2744
jrose@2639 2745 int java_lang_invoke_MemberName::_clazz_offset;
jrose@2639 2746 int java_lang_invoke_MemberName::_name_offset;
jrose@2639 2747 int java_lang_invoke_MemberName::_type_offset;
jrose@2639 2748 int java_lang_invoke_MemberName::_flags_offset;
jrose@2639 2749 int java_lang_invoke_MemberName::_vmtarget_offset;
coleenp@4037 2750 int java_lang_invoke_MemberName::_vmloader_offset;
jrose@2639 2751 int java_lang_invoke_MemberName::_vmindex_offset;
jrose@2639 2752
twisti@3969 2753 int java_lang_invoke_LambdaForm::_vmentry_offset;
never@3105 2754
jrose@2639 2755 void java_lang_invoke_MethodHandle::compute_offsets() {
coleenp@4037 2756 Klass* klass_oop = SystemDictionary::MethodHandle_klass();
never@3137 2757 if (klass_oop != NULL && EnableInvokeDynamic) {
twisti@3969 2758 compute_offset(_type_offset, klass_oop, vmSymbols::type_name(), vmSymbols::java_lang_invoke_MethodType_signature());
twisti@3969 2759 compute_optional_offset(_form_offset, klass_oop, vmSymbols::form_name(), vmSymbols::java_lang_invoke_LambdaForm_signature());
twisti@3969 2760 if (_form_offset == 0) {
twisti@3969 2761 EnableInvokeDynamic = false;
twisti@3969 2762 }
jrose@1145 2763 }
jrose@1145 2764 }
jrose@1145 2765
jrose@2639 2766 void java_lang_invoke_MemberName::compute_offsets() {
coleenp@4037 2767 Klass* klass_oop = SystemDictionary::MemberName_klass();
never@3137 2768 if (klass_oop != NULL && EnableInvokeDynamic) {
never@3137 2769 compute_offset(_clazz_offset, klass_oop, vmSymbols::clazz_name(), vmSymbols::class_signature());
never@3137 2770 compute_offset(_name_offset, klass_oop, vmSymbols::name_name(), vmSymbols::string_signature());
never@3137 2771 compute_offset(_type_offset, klass_oop, vmSymbols::type_name(), vmSymbols::object_signature());
never@3137 2772 compute_offset(_flags_offset, klass_oop, vmSymbols::flags_name(), vmSymbols::int_signature());
never@3137 2773 MEMBERNAME_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET);
jrose@1145 2774 }
jrose@1145 2775 }
jrose@1145 2776
twisti@3969 2777 void java_lang_invoke_LambdaForm::compute_offsets() {
coleenp@4037 2778 Klass* klass_oop = SystemDictionary::LambdaForm_klass();
twisti@3969 2779 if (klass_oop != NULL && EnableInvokeDynamic) {
twisti@3969 2780 compute_offset(_vmentry_offset, klass_oop, vmSymbols::vmentry_name(), vmSymbols::java_lang_invoke_MemberName_signature());
jrose@1145 2781 }
jrose@1145 2782 }
jrose@1145 2783
jrose@2639 2784 oop java_lang_invoke_MethodHandle::type(oop mh) {
jrose@1145 2785 return mh->obj_field(_type_offset);
jrose@1145 2786 }
jrose@1145 2787
jrose@2639 2788 void java_lang_invoke_MethodHandle::set_type(oop mh, oop mtype) {
jrose@1145 2789 mh->obj_field_put(_type_offset, mtype);
jrose@1145 2790 }
jrose@1145 2791
twisti@3969 2792 oop java_lang_invoke_MethodHandle::form(oop mh) {
twisti@3969 2793 assert(_form_offset != 0, "");
twisti@3969 2794 return mh->obj_field(_form_offset);
jrose@1145 2795 }
jrose@1145 2796
twisti@3969 2797 void java_lang_invoke_MethodHandle::set_form(oop mh, oop lform) {
twisti@3969 2798 assert(_form_offset != 0, "");
twisti@3969 2799 mh->obj_field_put(_form_offset, lform);
jrose@1145 2800 }
jrose@1145 2801
jrose@1145 2802 /// MemberName accessors
jrose@1145 2803
jrose@2639 2804 oop java_lang_invoke_MemberName::clazz(oop mname) {
jrose@1145 2805 assert(is_instance(mname), "wrong type");
jrose@1145 2806 return mname->obj_field(_clazz_offset);
jrose@1145 2807 }
jrose@1145 2808
jrose@2639 2809 void java_lang_invoke_MemberName::set_clazz(oop mname, oop clazz) {
jrose@1145 2810 assert(is_instance(mname), "wrong type");
jrose@1145 2811 mname->obj_field_put(_clazz_offset, clazz);
jrose@1145 2812 }
jrose@1145 2813
jrose@2639 2814 oop java_lang_invoke_MemberName::name(oop mname) {
jrose@1145 2815 assert(is_instance(mname), "wrong type");
jrose@1145 2816 return mname->obj_field(_name_offset);
jrose@1145 2817 }
jrose@1145 2818
jrose@2639 2819 void java_lang_invoke_MemberName::set_name(oop mname, oop name) {
jrose@1145 2820 assert(is_instance(mname), "wrong type");
jrose@1145 2821 mname->obj_field_put(_name_offset, name);
jrose@1145 2822 }
jrose@1145 2823
jrose@2639 2824 oop java_lang_invoke_MemberName::type(oop mname) {
jrose@1145 2825 assert(is_instance(mname), "wrong type");
jrose@1145 2826 return mname->obj_field(_type_offset);
jrose@1145 2827 }
jrose@1145 2828
jrose@2639 2829 void java_lang_invoke_MemberName::set_type(oop mname, oop type) {
jrose@1145 2830 assert(is_instance(mname), "wrong type");
jrose@1145 2831 mname->obj_field_put(_type_offset, type);
jrose@1145 2832 }
jrose@1145 2833
jrose@2639 2834 int java_lang_invoke_MemberName::flags(oop mname) {
jrose@1145 2835 assert(is_instance(mname), "wrong type");
jrose@1145 2836 return mname->int_field(_flags_offset);
jrose@1145 2837 }
jrose@1145 2838
jrose@2639 2839 void java_lang_invoke_MemberName::set_flags(oop mname, int flags) {
jrose@1145 2840 assert(is_instance(mname), "wrong type");
jrose@1145 2841 mname->int_field_put(_flags_offset, flags);
jrose@1145 2842 }
jrose@1145 2843
coleenp@4037 2844 Metadata* java_lang_invoke_MemberName::vmtarget(oop mname) {
jrose@1145 2845 assert(is_instance(mname), "wrong type");
coleenp@4037 2846 return (Metadata*)mname->address_field(_vmtarget_offset);
jrose@1145 2847 }
jrose@1145 2848
coleenp@7391 2849 bool java_lang_invoke_MemberName::is_method(oop mname) {
coleenp@7391 2850 assert(is_instance(mname), "must be MemberName");
coleenp@7391 2851 return (flags(mname) & (MN_IS_METHOD | MN_IS_CONSTRUCTOR)) > 0;
coleenp@7391 2852 }
coleenp@7391 2853
coleenp@4037 2854 void java_lang_invoke_MemberName::set_vmtarget(oop mname, Metadata* ref) {
jrose@1145 2855 assert(is_instance(mname), "wrong type");
twisti@3969 2856 // check the type of the vmtarget
coleenp@4304 2857 oop dependency = NULL;
twisti@3969 2858 if (ref != NULL) {
twisti@3969 2859 switch (flags(mname) & (MN_IS_METHOD |
twisti@3969 2860 MN_IS_CONSTRUCTOR |
twisti@3969 2861 MN_IS_FIELD)) {
twisti@3969 2862 case MN_IS_METHOD:
twisti@3969 2863 case MN_IS_CONSTRUCTOR:
twisti@3969 2864 assert(ref->is_method(), "should be a method");
coleenp@4304 2865 dependency = ((Method*)ref)->method_holder()->java_mirror();
twisti@3969 2866 break;
twisti@3969 2867 case MN_IS_FIELD:
twisti@3969 2868 assert(ref->is_klass(), "should be a class");
coleenp@4304 2869 dependency = ((Klass*)ref)->java_mirror();
twisti@3969 2870 break;
twisti@3969 2871 default:
twisti@3969 2872 ShouldNotReachHere();
twisti@3969 2873 }
twisti@3969 2874 }
coleenp@4037 2875 mname->address_field_put(_vmtarget_offset, (address)ref);
coleenp@4304 2876 // Add a reference to the loader (actually mirror because anonymous classes will not have
coleenp@4304 2877 // distinct loaders) to ensure the metadata is kept alive
coleenp@4304 2878 // This mirror may be different than the one in clazz field.
coleenp@4304 2879 mname->obj_field_put(_vmloader_offset, dependency);
jrose@1145 2880 }
jrose@1145 2881
twisti@3969 2882 intptr_t java_lang_invoke_MemberName::vmindex(oop mname) {
jrose@1145 2883 assert(is_instance(mname), "wrong type");
twisti@3969 2884 return (intptr_t) mname->address_field(_vmindex_offset);
jrose@1145 2885 }
jrose@1145 2886
twisti@3969 2887 void java_lang_invoke_MemberName::set_vmindex(oop mname, intptr_t index) {
jrose@1145 2888 assert(is_instance(mname), "wrong type");
twisti@3969 2889 mname->address_field_put(_vmindex_offset, (address) index);
jrose@1145 2890 }
jrose@1145 2891
kevinw@8721 2892 bool java_lang_invoke_MemberName::equals(oop mn1, oop mn2) {
kevinw@8721 2893 if (mn1 == mn2) {
kevinw@8721 2894 return true;
kevinw@8721 2895 }
kevinw@8721 2896 return (vmtarget(mn1) == vmtarget(mn2) && flags(mn1) == flags(mn2) &&
kevinw@8721 2897 vmindex(mn1) == vmindex(mn2) &&
kevinw@8721 2898 clazz(mn1) == clazz(mn2));
kevinw@8721 2899 }
kevinw@8721 2900
twisti@3969 2901 oop java_lang_invoke_LambdaForm::vmentry(oop lform) {
twisti@3969 2902 assert(is_instance(lform), "wrong type");
twisti@3969 2903 return lform->obj_field(_vmentry_offset);
jrose@1145 2904 }
jrose@1145 2905
jrose@1145 2906
jrose@2639 2907 // Support for java_lang_invoke_MethodType
jrose@2639 2908
jrose@2639 2909 int java_lang_invoke_MethodType::_rtype_offset;
jrose@2639 2910 int java_lang_invoke_MethodType::_ptypes_offset;
jrose@2639 2911
jrose@2639 2912 void java_lang_invoke_MethodType::compute_offsets() {
coleenp@4037 2913 Klass* k = SystemDictionary::MethodType_klass();
jrose@1145 2914 if (k != NULL) {
jrose@1145 2915 compute_offset(_rtype_offset, k, vmSymbols::rtype_name(), vmSymbols::class_signature());
jrose@1145 2916 compute_offset(_ptypes_offset, k, vmSymbols::ptypes_name(), vmSymbols::class_array_signature());
jrose@1145 2917 }
jrose@1145 2918 }
jrose@1145 2919
jrose@2639 2920 void java_lang_invoke_MethodType::print_signature(oop mt, outputStream* st) {
jrose@1145 2921 st->print("(");
jrose@1145 2922 objArrayOop pts = ptypes(mt);
jrose@1145 2923 for (int i = 0, limit = pts->length(); i < limit; i++) {
jrose@1145 2924 java_lang_Class::print_signature(pts->obj_at(i), st);
jrose@1145 2925 }
jrose@1145 2926 st->print(")");
jrose@1145 2927 java_lang_Class::print_signature(rtype(mt), st);
jrose@1145 2928 }
jrose@1145 2929
jrose@2639 2930 Symbol* java_lang_invoke_MethodType::as_signature(oop mt, bool intern_if_not_found, TRAPS) {
jrose@1145 2931 ResourceMark rm;
jrose@1145 2932 stringStream buffer(128);
jrose@1145 2933 print_signature(mt, &buffer);
jrose@1145 2934 const char* sigstr = buffer.base();
jrose@1145 2935 int siglen = (int) buffer.size();
coleenp@2497 2936 Symbol *name;
coleenp@2497 2937 if (!intern_if_not_found) {
coleenp@2497 2938 name = SymbolTable::probe(sigstr, siglen);
coleenp@2497 2939 } else {
coleenp@2497 2940 name = SymbolTable::new_symbol(sigstr, siglen, THREAD);
coleenp@2497 2941 }
coleenp@2497 2942 return name;
jrose@1145 2943 }
jrose@1145 2944
jrose@2982 2945 bool java_lang_invoke_MethodType::equals(oop mt1, oop mt2) {
twisti@3969 2946 if (mt1 == mt2)
twisti@3969 2947 return true;
jrose@2982 2948 if (rtype(mt1) != rtype(mt2))
jrose@2982 2949 return false;
jrose@2982 2950 if (ptype_count(mt1) != ptype_count(mt2))
jrose@2982 2951 return false;
jrose@2982 2952 for (int i = ptype_count(mt1) - 1; i >= 0; i--) {
jrose@2982 2953 if (ptype(mt1, i) != ptype(mt2, i))
jrose@2982 2954 return false;
jrose@2982 2955 }
jrose@2982 2956 return true;
jrose@2982 2957 }
jrose@2982 2958
jrose@2639 2959 oop java_lang_invoke_MethodType::rtype(oop mt) {
jrose@1145 2960 assert(is_instance(mt), "must be a MethodType");
jrose@1145 2961 return mt->obj_field(_rtype_offset);
jrose@1145 2962 }
jrose@1145 2963
jrose@2639 2964 objArrayOop java_lang_invoke_MethodType::ptypes(oop mt) {
jrose@1145 2965 assert(is_instance(mt), "must be a MethodType");
jrose@1145 2966 return (objArrayOop) mt->obj_field(_ptypes_offset);
jrose@1145 2967 }
jrose@1145 2968
jrose@2639 2969 oop java_lang_invoke_MethodType::ptype(oop mt, int idx) {
jrose@1145 2970 return ptypes(mt)->obj_at(idx);
jrose@1145 2971 }
jrose@1145 2972
jrose@2639 2973 int java_lang_invoke_MethodType::ptype_count(oop mt) {
twisti@1568 2974 return ptypes(mt)->length();
twisti@1568 2975 }
twisti@1568 2976
twisti@3969 2977 int java_lang_invoke_MethodType::ptype_slot_count(oop mt) {
twisti@3969 2978 objArrayOop pts = ptypes(mt);
twisti@3969 2979 int count = pts->length();
twisti@3969 2980 int slots = 0;
twisti@3969 2981 for (int i = 0; i < count; i++) {
twisti@3969 2982 BasicType bt = java_lang_Class::as_BasicType(pts->obj_at(i));
twisti@3969 2983 slots += type2size[bt];
jrose@1145 2984 }
twisti@3969 2985 return slots;
jrose@1145 2986 }
jrose@1145 2987
twisti@3969 2988 int java_lang_invoke_MethodType::rtype_slot_count(oop mt) {
twisti@3969 2989 BasicType bt = java_lang_Class::as_BasicType(rtype(mt));
twisti@3969 2990 return type2size[bt];
jrose@2148 2991 }
jrose@2148 2992
jrose@1145 2993
jrose@2639 2994 // Support for java_lang_invoke_CallSite
jrose@2639 2995
jrose@2639 2996 int java_lang_invoke_CallSite::_target_offset;
jrose@2639 2997
jrose@2639 2998 void java_lang_invoke_CallSite::compute_offsets() {
jrose@1161 2999 if (!EnableInvokeDynamic) return;
coleenp@4037 3000 Klass* k = SystemDictionary::CallSite_klass();
jrose@1161 3001 if (k != NULL) {
jrose@2639 3002 compute_offset(_target_offset, k, vmSymbols::target_name(), vmSymbols::java_lang_invoke_MethodHandle_signature());
jrose@1161 3003 }
jrose@1161 3004 }
jrose@1161 3005
jrose@1145 3006
duke@435 3007 // Support for java_security_AccessControlContext
duke@435 3008
duke@435 3009 int java_security_AccessControlContext::_context_offset = 0;
duke@435 3010 int java_security_AccessControlContext::_privilegedContext_offset = 0;
duke@435 3011 int java_security_AccessControlContext::_isPrivileged_offset = 0;
mullan@5242 3012 int java_security_AccessControlContext::_isAuthorized_offset = -1;
duke@435 3013
duke@435 3014 void java_security_AccessControlContext::compute_offsets() {
duke@435 3015 assert(_isPrivileged_offset == 0, "offsets should be initialized only once");
duke@435 3016 fieldDescriptor fd;
coleenp@4037 3017 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::AccessControlContext_klass());
duke@435 3018
duke@435 3019 if (!ik->find_local_field(vmSymbols::context_name(), vmSymbols::protectiondomain_signature(), &fd)) {
duke@435 3020 fatal("Invalid layout of java.security.AccessControlContext");
duke@435 3021 }
duke@435 3022 _context_offset = fd.offset();
duke@435 3023
duke@435 3024 if (!ik->find_local_field(vmSymbols::privilegedContext_name(), vmSymbols::accesscontrolcontext_signature(), &fd)) {
duke@435 3025 fatal("Invalid layout of java.security.AccessControlContext");
duke@435 3026 }
duke@435 3027 _privilegedContext_offset = fd.offset();
duke@435 3028
duke@435 3029 if (!ik->find_local_field(vmSymbols::isPrivileged_name(), vmSymbols::bool_signature(), &fd)) {
duke@435 3030 fatal("Invalid layout of java.security.AccessControlContext");
duke@435 3031 }
duke@435 3032 _isPrivileged_offset = fd.offset();
mullan@5242 3033
mullan@5242 3034 // The offset may not be present for bootstrapping with older JDK.
mullan@5242 3035 if (ik->find_local_field(vmSymbols::isAuthorized_name(), vmSymbols::bool_signature(), &fd)) {
mullan@5242 3036 _isAuthorized_offset = fd.offset();
mullan@5242 3037 }
hseigel@4987 3038 }
hseigel@4987 3039
hseigel@4987 3040
mullan@5242 3041 bool java_security_AccessControlContext::is_authorized(Handle context) {
mullan@5242 3042 assert(context.not_null() && context->klass() == SystemDictionary::AccessControlContext_klass(), "Invalid type");
mullan@5242 3043 assert(_isAuthorized_offset != -1, "should be set");
mullan@5242 3044 return context->bool_field(_isAuthorized_offset) != 0;
mullan@5242 3045 }
duke@435 3046
duke@435 3047 oop java_security_AccessControlContext::create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS) {
duke@435 3048 assert(_isPrivileged_offset != 0, "offsets should have been initialized");
duke@435 3049 // Ensure klass is initialized
coleenp@4037 3050 InstanceKlass::cast(SystemDictionary::AccessControlContext_klass())->initialize(CHECK_0);
duke@435 3051 // Allocate result
coleenp@4037 3052 oop result = InstanceKlass::cast(SystemDictionary::AccessControlContext_klass())->allocate_instance(CHECK_0);
duke@435 3053 // Fill in values
duke@435 3054 result->obj_field_put(_context_offset, context());
duke@435 3055 result->obj_field_put(_privilegedContext_offset, privileged_context());
duke@435 3056 result->bool_field_put(_isPrivileged_offset, isPrivileged);
mullan@5243 3057 // whitelist AccessControlContexts created by the JVM if present
mullan@5243 3058 if (_isAuthorized_offset != -1) {
mullan@5243 3059 result->bool_field_put(_isAuthorized_offset, true);
mullan@5243 3060 }
duke@435 3061 return result;
duke@435 3062 }
duke@435 3063
duke@435 3064
duke@435 3065 // Support for java_lang_ClassLoader
coleenp@4037 3066
never@3137 3067 bool java_lang_ClassLoader::offsets_computed = false;
coleenp@4037 3068 int java_lang_ClassLoader::_loader_data_offset = -1;
never@3137 3069 int java_lang_ClassLoader::parallelCapable_offset = -1;
never@3137 3070
coleenp@4037 3071 ClassLoaderData** java_lang_ClassLoader::loader_data_addr(oop loader) {
coleenp@4037 3072 assert(loader != NULL && loader->is_oop(), "loader must be oop");
coleenp@4037 3073 return (ClassLoaderData**) loader->address_field_addr(_loader_data_offset);
coleenp@4037 3074 }
coleenp@4037 3075
coleenp@4037 3076 ClassLoaderData* java_lang_ClassLoader::loader_data(oop loader) {
coleenp@4037 3077 return *java_lang_ClassLoader::loader_data_addr(loader);
coleenp@4037 3078 }
coleenp@4037 3079
never@3137 3080 void java_lang_ClassLoader::compute_offsets() {
never@3137 3081 assert(!offsets_computed, "offsets should be initialized only once");
never@3137 3082 offsets_computed = true;
never@3137 3083
never@3137 3084 // The field indicating parallelCapable (parallelLockMap) is only present starting in 7,
coleenp@4037 3085 Klass* k1 = SystemDictionary::ClassLoader_klass();
never@3137 3086 compute_optional_offset(parallelCapable_offset,
never@3137 3087 k1, vmSymbols::parallelCapable_name(), vmSymbols::concurrenthashmap_signature());
coleenp@4037 3088
coleenp@4037 3089 CLASSLOADER_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET);
never@3137 3090 }
duke@435 3091
duke@435 3092 oop java_lang_ClassLoader::parent(oop loader) {
twisti@3969 3093 assert(is_instance(loader), "loader must be oop");
duke@435 3094 return loader->obj_field(parent_offset);
duke@435 3095 }
duke@435 3096
twisti@3969 3097 bool java_lang_ClassLoader::isAncestor(oop loader, oop cl) {
twisti@3969 3098 assert(is_instance(loader), "loader must be oop");
twisti@3969 3099 assert(cl == NULL || is_instance(cl), "cl argument must be oop");
twisti@3969 3100 oop acl = loader;
twisti@3969 3101 debug_only(jint loop_count = 0);
twisti@3969 3102 // This loop taken verbatim from ClassLoader.java:
twisti@3969 3103 do {
twisti@3969 3104 acl = parent(acl);
twisti@3969 3105 if (cl == acl) {
twisti@3969 3106 return true;
twisti@3969 3107 }
twisti@3969 3108 assert(++loop_count > 0, "loop_count overflow");
twisti@3969 3109 } while (acl != NULL);
twisti@3969 3110 return false;
twisti@3969 3111 }
twisti@3969 3112
duke@435 3113
never@3137 3114 // For class loader classes, parallelCapable defined
never@3137 3115 // based on non-null field
never@3137 3116 // Written to by java.lang.ClassLoader, vm only reads this field, doesn't set it
never@3137 3117 bool java_lang_ClassLoader::parallelCapable(oop class_loader) {
never@3137 3118 if (!JDK_Version::is_gte_jdk17x_version()
never@3137 3119 || parallelCapable_offset == -1) {
never@3137 3120 // Default for backward compatibility is false
never@3137 3121 return false;
never@3137 3122 }
never@3137 3123 return (class_loader->obj_field(parallelCapable_offset) != NULL);
never@3137 3124 }
never@3137 3125
duke@435 3126 bool java_lang_ClassLoader::is_trusted_loader(oop loader) {
duke@435 3127 // Fix for 4474172; see evaluation for more details
duke@435 3128 loader = non_reflection_class_loader(loader);
duke@435 3129
duke@435 3130 oop cl = SystemDictionary::java_system_loader();
duke@435 3131 while(cl != NULL) {
duke@435 3132 if (cl == loader) return true;
duke@435 3133 cl = parent(cl);
duke@435 3134 }
duke@435 3135 return false;
duke@435 3136 }
duke@435 3137
duke@435 3138 oop java_lang_ClassLoader::non_reflection_class_loader(oop loader) {
duke@435 3139 if (loader != NULL) {
duke@435 3140 // See whether this is one of the class loaders associated with
duke@435 3141 // the generated bytecodes for reflection, and if so, "magically"
duke@435 3142 // delegate to its parent to prevent class loading from occurring
duke@435 3143 // in places where applications using reflection didn't expect it.
coleenp@4037 3144 Klass* delegating_cl_class = SystemDictionary::reflect_DelegatingClassLoader_klass();
duke@435 3145 // This might be null in non-1.4 JDKs
duke@435 3146 if (delegating_cl_class != NULL && loader->is_a(delegating_cl_class)) {
duke@435 3147 return parent(loader);
duke@435 3148 }
duke@435 3149 }
duke@435 3150 return loader;
duke@435 3151 }
duke@435 3152
duke@435 3153
duke@435 3154 // Support for java_lang_System
never@2658 3155 int java_lang_System::in_offset_in_bytes() {
coleenp@4047 3156 return (InstanceMirrorKlass::offset_of_static_fields() + static_in_offset);
duke@435 3157 }
duke@435 3158
never@2658 3159
never@2658 3160 int java_lang_System::out_offset_in_bytes() {
coleenp@4047 3161 return (InstanceMirrorKlass::offset_of_static_fields() + static_out_offset);
duke@435 3162 }
duke@435 3163
duke@435 3164
duke@435 3165 int java_lang_System::err_offset_in_bytes() {
coleenp@4047 3166 return (InstanceMirrorKlass::offset_of_static_fields() + static_err_offset);
duke@435 3167 }
duke@435 3168
duke@435 3169
mullan@5242 3170 bool java_lang_System::has_security_manager() {
mullan@5242 3171 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::System_klass());
mullan@5242 3172 address addr = ik->static_field_addr(static_security_offset);
mullan@5242 3173 if (UseCompressedOops) {
mullan@5242 3174 return oopDesc::load_decode_heap_oop((narrowOop *)addr) != NULL;
mullan@5242 3175 } else {
mullan@5242 3176 return oopDesc::load_decode_heap_oop((oop*)addr) != NULL;
mullan@5242 3177 }
mullan@5242 3178 }
duke@435 3179
never@3137 3180 int java_lang_Class::_klass_offset;
never@3137 3181 int java_lang_Class::_array_klass_offset;
never@3137 3182 int java_lang_Class::_oop_size_offset;
never@3137 3183 int java_lang_Class::_static_oop_field_count_offset;
coleenp@7129 3184 int java_lang_Class::_class_loader_offset;
coleenp@5176 3185 int java_lang_Class::_protection_domain_offset;
coleenp@5176 3186 int java_lang_Class::_init_lock_offset;
coleenp@5176 3187 int java_lang_Class::_signers_offset;
coleenp@4037 3188 GrowableArray<Klass*>* java_lang_Class::_fixup_mirror_list = NULL;
duke@435 3189 int java_lang_Throwable::backtrace_offset;
duke@435 3190 int java_lang_Throwable::detailMessage_offset;
duke@435 3191 int java_lang_Throwable::cause_offset;
duke@435 3192 int java_lang_Throwable::stackTrace_offset;
dholmes@3018 3193 int java_lang_Throwable::static_unassigned_stacktrace_offset;
duke@435 3194 int java_lang_reflect_AccessibleObject::override_offset;
duke@435 3195 int java_lang_reflect_Method::clazz_offset;
duke@435 3196 int java_lang_reflect_Method::name_offset;
duke@435 3197 int java_lang_reflect_Method::returnType_offset;
duke@435 3198 int java_lang_reflect_Method::parameterTypes_offset;
duke@435 3199 int java_lang_reflect_Method::exceptionTypes_offset;
duke@435 3200 int java_lang_reflect_Method::slot_offset;
duke@435 3201 int java_lang_reflect_Method::modifiers_offset;
duke@435 3202 int java_lang_reflect_Method::signature_offset;
duke@435 3203 int java_lang_reflect_Method::annotations_offset;
duke@435 3204 int java_lang_reflect_Method::parameter_annotations_offset;
duke@435 3205 int java_lang_reflect_Method::annotation_default_offset;
stefank@4393 3206 int java_lang_reflect_Method::type_annotations_offset;
duke@435 3207 int java_lang_reflect_Constructor::clazz_offset;
duke@435 3208 int java_lang_reflect_Constructor::parameterTypes_offset;
duke@435 3209 int java_lang_reflect_Constructor::exceptionTypes_offset;
duke@435 3210 int java_lang_reflect_Constructor::slot_offset;
duke@435 3211 int java_lang_reflect_Constructor::modifiers_offset;
duke@435 3212 int java_lang_reflect_Constructor::signature_offset;
duke@435 3213 int java_lang_reflect_Constructor::annotations_offset;
duke@435 3214 int java_lang_reflect_Constructor::parameter_annotations_offset;
stefank@4393 3215 int java_lang_reflect_Constructor::type_annotations_offset;
duke@435 3216 int java_lang_reflect_Field::clazz_offset;
duke@435 3217 int java_lang_reflect_Field::name_offset;
duke@435 3218 int java_lang_reflect_Field::type_offset;
duke@435 3219 int java_lang_reflect_Field::slot_offset;
duke@435 3220 int java_lang_reflect_Field::modifiers_offset;
duke@435 3221 int java_lang_reflect_Field::signature_offset;
duke@435 3222 int java_lang_reflect_Field::annotations_offset;
stefank@4393 3223 int java_lang_reflect_Field::type_annotations_offset;
coleenp@4398 3224 int java_lang_reflect_Parameter::name_offset;
coleenp@4398 3225 int java_lang_reflect_Parameter::modifiers_offset;
coleenp@4398 3226 int java_lang_reflect_Parameter::index_offset;
coleenp@4398 3227 int java_lang_reflect_Parameter::executable_offset;
duke@435 3228 int java_lang_boxing_object::value_offset;
kvn@600 3229 int java_lang_boxing_object::long_value_offset;
duke@435 3230 int java_lang_ref_Reference::referent_offset;
duke@435 3231 int java_lang_ref_Reference::queue_offset;
duke@435 3232 int java_lang_ref_Reference::next_offset;
duke@435 3233 int java_lang_ref_Reference::discovered_offset;
duke@435 3234 int java_lang_ref_Reference::static_lock_offset;
duke@435 3235 int java_lang_ref_Reference::static_pending_offset;
duke@435 3236 int java_lang_ref_Reference::number_of_fake_oop_fields;
kbarrett@9099 3237 int java_lang_ref_ReferenceQueue::static_NULL_queue_offset;
kbarrett@9099 3238 int java_lang_ref_ReferenceQueue::static_ENQUEUED_queue_offset;
duke@435 3239 int java_lang_ref_SoftReference::timestamp_offset;
duke@435 3240 int java_lang_ref_SoftReference::static_clock_offset;
duke@435 3241 int java_lang_ClassLoader::parent_offset;
duke@435 3242 int java_lang_System::static_in_offset;
duke@435 3243 int java_lang_System::static_out_offset;
duke@435 3244 int java_lang_System::static_err_offset;
mullan@5242 3245 int java_lang_System::static_security_offset;
duke@435 3246 int java_lang_StackTraceElement::declaringClass_offset;
duke@435 3247 int java_lang_StackTraceElement::methodName_offset;
duke@435 3248 int java_lang_StackTraceElement::fileName_offset;
duke@435 3249 int java_lang_StackTraceElement::lineNumber_offset;
duke@435 3250 int java_lang_AssertionStatusDirectives::classes_offset;
duke@435 3251 int java_lang_AssertionStatusDirectives::classEnabled_offset;
duke@435 3252 int java_lang_AssertionStatusDirectives::packages_offset;
duke@435 3253 int java_lang_AssertionStatusDirectives::packageEnabled_offset;
duke@435 3254 int java_lang_AssertionStatusDirectives::deflt_offset;
duke@435 3255 int java_nio_Buffer::_limit_offset;
duke@435 3256 int java_util_concurrent_locks_AbstractOwnableSynchronizer::_owner_offset = 0;
coleenp@4037 3257 int sun_reflect_ConstantPool::_oop_offset;
duke@435 3258 int sun_reflect_UnsafeStaticFieldAccessorImpl::_base_offset;
duke@435 3259
duke@435 3260
duke@435 3261 // Support for java_lang_StackTraceElement
duke@435 3262
duke@435 3263 void java_lang_StackTraceElement::set_fileName(oop element, oop value) {
duke@435 3264 element->obj_field_put(fileName_offset, value);
duke@435 3265 }
duke@435 3266
duke@435 3267 void java_lang_StackTraceElement::set_declaringClass(oop element, oop value) {
duke@435 3268 element->obj_field_put(declaringClass_offset, value);
duke@435 3269 }
duke@435 3270
duke@435 3271 void java_lang_StackTraceElement::set_methodName(oop element, oop value) {
duke@435 3272 element->obj_field_put(methodName_offset, value);
duke@435 3273 }
duke@435 3274
duke@435 3275 void java_lang_StackTraceElement::set_lineNumber(oop element, int value) {
duke@435 3276 element->int_field_put(lineNumber_offset, value);
duke@435 3277 }
duke@435 3278
duke@435 3279
duke@435 3280 // Support for java Assertions - java_lang_AssertionStatusDirectives.
duke@435 3281
duke@435 3282 void java_lang_AssertionStatusDirectives::set_classes(oop o, oop val) {
duke@435 3283 o->obj_field_put(classes_offset, val);
duke@435 3284 }
duke@435 3285
duke@435 3286 void java_lang_AssertionStatusDirectives::set_classEnabled(oop o, oop val) {
duke@435 3287 o->obj_field_put(classEnabled_offset, val);
duke@435 3288 }
duke@435 3289
duke@435 3290 void java_lang_AssertionStatusDirectives::set_packages(oop o, oop val) {
duke@435 3291 o->obj_field_put(packages_offset, val);
duke@435 3292 }
duke@435 3293
duke@435 3294 void java_lang_AssertionStatusDirectives::set_packageEnabled(oop o, oop val) {
duke@435 3295 o->obj_field_put(packageEnabled_offset, val);
duke@435 3296 }
duke@435 3297
duke@435 3298 void java_lang_AssertionStatusDirectives::set_deflt(oop o, bool val) {
duke@435 3299 o->bool_field_put(deflt_offset, val);
duke@435 3300 }
duke@435 3301
duke@435 3302
duke@435 3303 // Support for intrinsification of java.nio.Buffer.checkIndex
duke@435 3304 int java_nio_Buffer::limit_offset() {
duke@435 3305 return _limit_offset;
duke@435 3306 }
duke@435 3307
duke@435 3308
duke@435 3309 void java_nio_Buffer::compute_offsets() {
coleenp@4037 3310 Klass* k = SystemDictionary::nio_Buffer_klass();
jrose@567 3311 assert(k != NULL, "must be loaded in 1.4+");
jrose@567 3312 compute_offset(_limit_offset, k, vmSymbols::limit_name(), vmSymbols::int_signature());
duke@435 3313 }
duke@435 3314
duke@435 3315 void java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(TRAPS) {
duke@435 3316 if (_owner_offset != 0) return;
duke@435 3317
duke@435 3318 assert(JDK_Version::is_gte_jdk16x_version(), "Must be JDK 1.6 or later");
duke@435 3319 SystemDictionary::load_abstract_ownable_synchronizer_klass(CHECK);
coleenp@4037 3320 Klass* k = SystemDictionary::abstract_ownable_synchronizer_klass();
jrose@567 3321 compute_offset(_owner_offset, k,
duke@435 3322 vmSymbols::exclusive_owner_thread_name(), vmSymbols::thread_signature());
duke@435 3323 }
duke@435 3324
duke@435 3325 oop java_util_concurrent_locks_AbstractOwnableSynchronizer::get_owner_threadObj(oop obj) {
duke@435 3326 assert(_owner_offset != 0, "Must be initialized");
duke@435 3327 return obj->obj_field(_owner_offset);
duke@435 3328 }
duke@435 3329
duke@435 3330 // Compute hard-coded offsets
duke@435 3331 // Invoked before SystemDictionary::initialize, so pre-loaded classes
duke@435 3332 // are not available to determine the offset_of_static_fields.
duke@435 3333 void JavaClasses::compute_hard_coded_offsets() {
coleenp@548 3334 const int x = heapOopSize;
kvn@600 3335 const int header = instanceOopDesc::base_offset_in_bytes();
duke@435 3336
duke@435 3337 // Throwable Class
duke@435 3338 java_lang_Throwable::backtrace_offset = java_lang_Throwable::hc_backtrace_offset * x + header;
duke@435 3339 java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header;
duke@435 3340 java_lang_Throwable::cause_offset = java_lang_Throwable::hc_cause_offset * x + header;
duke@435 3341 java_lang_Throwable::stackTrace_offset = java_lang_Throwable::hc_stackTrace_offset * x + header;
dholmes@3018 3342 java_lang_Throwable::static_unassigned_stacktrace_offset = java_lang_Throwable::hc_static_unassigned_stacktrace_offset * x;
duke@435 3343
duke@435 3344 // java_lang_boxing_object
kvn@600 3345 java_lang_boxing_object::value_offset = java_lang_boxing_object::hc_value_offset + header;
kvn@600 3346 java_lang_boxing_object::long_value_offset = align_size_up((java_lang_boxing_object::hc_value_offset + header), BytesPerLong);
duke@435 3347
duke@435 3348 // java_lang_ref_Reference:
duke@435 3349 java_lang_ref_Reference::referent_offset = java_lang_ref_Reference::hc_referent_offset * x + header;
duke@435 3350 java_lang_ref_Reference::queue_offset = java_lang_ref_Reference::hc_queue_offset * x + header;
duke@435 3351 java_lang_ref_Reference::next_offset = java_lang_ref_Reference::hc_next_offset * x + header;
duke@435 3352 java_lang_ref_Reference::discovered_offset = java_lang_ref_Reference::hc_discovered_offset * x + header;
duke@435 3353 java_lang_ref_Reference::static_lock_offset = java_lang_ref_Reference::hc_static_lock_offset * x;
duke@435 3354 java_lang_ref_Reference::static_pending_offset = java_lang_ref_Reference::hc_static_pending_offset * x;
duke@435 3355 // Artificial fields for java_lang_ref_Reference
duke@435 3356 // The first field is for the discovered field added in 1.4
duke@435 3357 java_lang_ref_Reference::number_of_fake_oop_fields = 1;
duke@435 3358
duke@435 3359 // java_lang_ref_SoftReference Class
kvn@600 3360 java_lang_ref_SoftReference::timestamp_offset = align_size_up((java_lang_ref_SoftReference::hc_timestamp_offset * x + header), BytesPerLong);
duke@435 3361 // Don't multiply static fields because they are always in wordSize units
duke@435 3362 java_lang_ref_SoftReference::static_clock_offset = java_lang_ref_SoftReference::hc_static_clock_offset * x;
duke@435 3363
duke@435 3364 // java_lang_ClassLoader
duke@435 3365 java_lang_ClassLoader::parent_offset = java_lang_ClassLoader::hc_parent_offset * x + header;
duke@435 3366
duke@435 3367 // java_lang_System
duke@435 3368 java_lang_System::static_in_offset = java_lang_System::hc_static_in_offset * x;
duke@435 3369 java_lang_System::static_out_offset = java_lang_System::hc_static_out_offset * x;
duke@435 3370 java_lang_System::static_err_offset = java_lang_System::hc_static_err_offset * x;
mullan@5242 3371 java_lang_System::static_security_offset = java_lang_System::hc_static_security_offset * x;
duke@435 3372
duke@435 3373 // java_lang_StackTraceElement
duke@435 3374 java_lang_StackTraceElement::declaringClass_offset = java_lang_StackTraceElement::hc_declaringClass_offset * x + header;
duke@435 3375 java_lang_StackTraceElement::methodName_offset = java_lang_StackTraceElement::hc_methodName_offset * x + header;
duke@435 3376 java_lang_StackTraceElement::fileName_offset = java_lang_StackTraceElement::hc_fileName_offset * x + header;
duke@435 3377 java_lang_StackTraceElement::lineNumber_offset = java_lang_StackTraceElement::hc_lineNumber_offset * x + header;
duke@435 3378 java_lang_AssertionStatusDirectives::classes_offset = java_lang_AssertionStatusDirectives::hc_classes_offset * x + header;
duke@435 3379 java_lang_AssertionStatusDirectives::classEnabled_offset = java_lang_AssertionStatusDirectives::hc_classEnabled_offset * x + header;
duke@435 3380 java_lang_AssertionStatusDirectives::packages_offset = java_lang_AssertionStatusDirectives::hc_packages_offset * x + header;
duke@435 3381 java_lang_AssertionStatusDirectives::packageEnabled_offset = java_lang_AssertionStatusDirectives::hc_packageEnabled_offset * x + header;
duke@435 3382 java_lang_AssertionStatusDirectives::deflt_offset = java_lang_AssertionStatusDirectives::hc_deflt_offset * x + header;
duke@435 3383
duke@435 3384 }
duke@435 3385
duke@435 3386
duke@435 3387 // Compute non-hard-coded field offsets of all the classes in this file
duke@435 3388 void JavaClasses::compute_offsets() {
never@3137 3389 // java_lang_Class::compute_offsets was called earlier in bootstrap
never@3137 3390 java_lang_ClassLoader::compute_offsets();
duke@435 3391 java_lang_Thread::compute_offsets();
duke@435 3392 java_lang_ThreadGroup::compute_offsets();
twisti@2698 3393 if (EnableInvokeDynamic) {
jrose@2639 3394 java_lang_invoke_MethodHandle::compute_offsets();
sspitsyn@5496 3395 java_lang_invoke_DirectMethodHandle::compute_offsets();
jrose@2639 3396 java_lang_invoke_MemberName::compute_offsets();
twisti@3969 3397 java_lang_invoke_LambdaForm::compute_offsets();
jrose@2639 3398 java_lang_invoke_MethodType::compute_offsets();
jrose@2639 3399 java_lang_invoke_CallSite::compute_offsets();
jrose@1161 3400 }
duke@435 3401 java_security_AccessControlContext::compute_offsets();
duke@435 3402 // Initialize reflection classes. The layouts of these classes
duke@435 3403 // changed with the new reflection implementation in JDK 1.4, and
duke@435 3404 // since the Universe doesn't know what JDK version it is until this
duke@435 3405 // point we defer computation of these offsets until now.
duke@435 3406 java_lang_reflect_AccessibleObject::compute_offsets();
duke@435 3407 java_lang_reflect_Method::compute_offsets();
duke@435 3408 java_lang_reflect_Constructor::compute_offsets();
duke@435 3409 java_lang_reflect_Field::compute_offsets();
duke@435 3410 if (JDK_Version::is_gte_jdk14x_version()) {
duke@435 3411 java_nio_Buffer::compute_offsets();
duke@435 3412 }
duke@435 3413 if (JDK_Version::is_gte_jdk15x_version()) {
duke@435 3414 sun_reflect_ConstantPool::compute_offsets();
duke@435 3415 sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets();
duke@435 3416 }
coleenp@4398 3417 if (JDK_Version::is_jdk18x_version())
coleenp@4398 3418 java_lang_reflect_Parameter::compute_offsets();
jrose@1145 3419
kbarrett@9099 3420 java_lang_ref_ReferenceQueue::compute_offsets();
kbarrett@9099 3421
jrose@1145 3422 // generated interpreter code wants to know about the offsets we just computed:
jrose@1145 3423 AbstractAssembler::update_delayed_values();
duke@435 3424 }
duke@435 3425
duke@435 3426 #ifndef PRODUCT
duke@435 3427
duke@435 3428 // These functions exist to assert the validity of hard-coded field offsets to guard
duke@435 3429 // against changes in the class files
duke@435 3430
duke@435 3431 bool JavaClasses::check_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) {
duke@435 3432 EXCEPTION_MARK;
duke@435 3433 fieldDescriptor fd;
coleenp@2497 3434 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH);
coleenp@4037 3435 Klass* k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH);
duke@435 3436 instanceKlassHandle h_klass (THREAD, k);
coleenp@2497 3437 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH);
coleenp@2497 3438 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH);
coleenp@2497 3439 if (!h_klass->find_local_field(f_name, f_sig, &fd)) {
duke@435 3440 tty->print_cr("Nonstatic field %s.%s not found", klass_name, field_name);
duke@435 3441 return false;
duke@435 3442 }
duke@435 3443 if (fd.is_static()) {
duke@435 3444 tty->print_cr("Nonstatic field %s.%s appears to be static", klass_name, field_name);
duke@435 3445 return false;
duke@435 3446 }
duke@435 3447 if (fd.offset() == hardcoded_offset ) {
duke@435 3448 return true;
duke@435 3449 } else {
duke@435 3450 tty->print_cr("Offset of nonstatic field %s.%s is hardcoded as %d but should really be %d.",
duke@435 3451 klass_name, field_name, hardcoded_offset, fd.offset());
duke@435 3452 return false;
duke@435 3453 }
duke@435 3454 }
duke@435 3455
duke@435 3456
duke@435 3457 bool JavaClasses::check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) {
duke@435 3458 EXCEPTION_MARK;
duke@435 3459 fieldDescriptor fd;
coleenp@2497 3460 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH);
coleenp@4037 3461 Klass* k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH);
duke@435 3462 instanceKlassHandle h_klass (THREAD, k);
coleenp@2497 3463 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH);
coleenp@2497 3464 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH);
coleenp@2497 3465 if (!h_klass->find_local_field(f_name, f_sig, &fd)) {
duke@435 3466 tty->print_cr("Static field %s.%s not found", klass_name, field_name);
duke@435 3467 return false;
duke@435 3468 }
duke@435 3469 if (!fd.is_static()) {
duke@435 3470 tty->print_cr("Static field %s.%s appears to be nonstatic", klass_name, field_name);
duke@435 3471 return false;
duke@435 3472 }
coleenp@4047 3473 if (fd.offset() == hardcoded_offset + InstanceMirrorKlass::offset_of_static_fields()) {
duke@435 3474 return true;
duke@435 3475 } else {
coleenp@4047 3476 tty->print_cr("Offset of static field %s.%s is hardcoded as %d but should really be %d.", klass_name, field_name, hardcoded_offset, fd.offset() - InstanceMirrorKlass::offset_of_static_fields());
duke@435 3477 return false;
duke@435 3478 }
duke@435 3479 }
duke@435 3480
duke@435 3481
jrose@567 3482 bool JavaClasses::check_constant(const char *klass_name, int hardcoded_constant, const char *field_name, const char* field_sig) {
jrose@567 3483 EXCEPTION_MARK;
jrose@567 3484 fieldDescriptor fd;
coleenp@2497 3485 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH);
coleenp@4037 3486 Klass* k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH);
jrose@567 3487 instanceKlassHandle h_klass (THREAD, k);
coleenp@2497 3488 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH);
coleenp@2497 3489 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH);
coleenp@2497 3490 if (!h_klass->find_local_field(f_name, f_sig, &fd)) {
jrose@567 3491 tty->print_cr("Static field %s.%s not found", klass_name, field_name);
jrose@567 3492 return false;
jrose@567 3493 }
jrose@567 3494 if (!fd.is_static() || !fd.has_initial_value()) {
jrose@567 3495 tty->print_cr("Static field %s.%s appears to be non-constant", klass_name, field_name);
jrose@567 3496 return false;
jrose@567 3497 }
jrose@567 3498 if (!fd.initial_value_tag().is_int()) {
jrose@567 3499 tty->print_cr("Static field %s.%s is not an int", klass_name, field_name);
jrose@567 3500 return false;
jrose@567 3501 }
jrose@567 3502 jint field_value = fd.int_initial_value();
jrose@567 3503 if (field_value == hardcoded_constant) {
jrose@567 3504 return true;
jrose@567 3505 } else {
jrose@567 3506 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);
jrose@567 3507 return false;
jrose@567 3508 }
jrose@567 3509 }
jrose@567 3510
jrose@567 3511
duke@435 3512 // Check the hard-coded field offsets of all the classes in this file
duke@435 3513
duke@435 3514 void JavaClasses::check_offsets() {
duke@435 3515 bool valid = true;
coleenp@4037 3516 HandleMark hm;
duke@435 3517
duke@435 3518 #define CHECK_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \
duke@435 3519 valid &= check_offset(klass_name, cpp_klass_name :: field_name ## _offset, #field_name, field_sig)
duke@435 3520
kvn@600 3521 #define CHECK_LONG_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \
kvn@600 3522 valid &= check_offset(klass_name, cpp_klass_name :: long_ ## field_name ## _offset, #field_name, field_sig)
kvn@600 3523
duke@435 3524 #define CHECK_STATIC_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \
duke@435 3525 valid &= check_static_offset(klass_name, cpp_klass_name :: static_ ## field_name ## _offset, #field_name, field_sig)
duke@435 3526
jrose@567 3527 #define CHECK_CONSTANT(klass_name, cpp_klass_name, field_name, field_sig) \
jrose@567 3528 valid &= check_constant(klass_name, cpp_klass_name :: field_name, #field_name, field_sig)
jrose@567 3529
duke@435 3530 // java.lang.String
duke@435 3531
duke@435 3532 CHECK_OFFSET("java/lang/String", java_lang_String, value, "[C");
kvn@3760 3533 if (java_lang_String::has_offset_field()) {
kvn@3760 3534 CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I");
kvn@3760 3535 CHECK_OFFSET("java/lang/String", java_lang_String, count, "I");
kvn@3760 3536 }
kvn@3760 3537 if (java_lang_String::has_hash_field()) {
kvn@3760 3538 CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I");
kvn@3760 3539 }
duke@435 3540
duke@435 3541 // java.lang.Class
duke@435 3542
duke@435 3543 // Fake fields
duke@435 3544 // CHECK_OFFSET("java/lang/Class", java_lang_Class, klass); // %%% this needs to be checked
duke@435 3545 // CHECK_OFFSET("java/lang/Class", java_lang_Class, array_klass); // %%% this needs to be checked
duke@435 3546
duke@435 3547 // java.lang.Throwable
duke@435 3548
duke@435 3549 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, backtrace, "Ljava/lang/Object;");
duke@435 3550 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, detailMessage, "Ljava/lang/String;");
duke@435 3551 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, cause, "Ljava/lang/Throwable;");
duke@435 3552 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, stackTrace, "[Ljava/lang/StackTraceElement;");
duke@435 3553
duke@435 3554 // Boxed primitive objects (java_lang_boxing_object)
duke@435 3555
duke@435 3556 CHECK_OFFSET("java/lang/Boolean", java_lang_boxing_object, value, "Z");
duke@435 3557 CHECK_OFFSET("java/lang/Character", java_lang_boxing_object, value, "C");
duke@435 3558 CHECK_OFFSET("java/lang/Float", java_lang_boxing_object, value, "F");
kvn@600 3559 CHECK_LONG_OFFSET("java/lang/Double", java_lang_boxing_object, value, "D");
duke@435 3560 CHECK_OFFSET("java/lang/Byte", java_lang_boxing_object, value, "B");
duke@435 3561 CHECK_OFFSET("java/lang/Short", java_lang_boxing_object, value, "S");
duke@435 3562 CHECK_OFFSET("java/lang/Integer", java_lang_boxing_object, value, "I");
kvn@600 3563 CHECK_LONG_OFFSET("java/lang/Long", java_lang_boxing_object, value, "J");
duke@435 3564
duke@435 3565 // java.lang.ClassLoader
duke@435 3566
duke@435 3567 CHECK_OFFSET("java/lang/ClassLoader", java_lang_ClassLoader, parent, "Ljava/lang/ClassLoader;");
duke@435 3568
duke@435 3569 // java.lang.System
duke@435 3570
duke@435 3571 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, in, "Ljava/io/InputStream;");
duke@435 3572 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, out, "Ljava/io/PrintStream;");
duke@435 3573 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, err, "Ljava/io/PrintStream;");
mullan@5242 3574 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, security, "Ljava/lang/SecurityManager;");
duke@435 3575
duke@435 3576 // java.lang.StackTraceElement
duke@435 3577
duke@435 3578 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClass, "Ljava/lang/String;");
duke@435 3579 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, methodName, "Ljava/lang/String;");
duke@435 3580 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, fileName, "Ljava/lang/String;");
duke@435 3581 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, lineNumber, "I");
duke@435 3582
duke@435 3583 // java.lang.ref.Reference
duke@435 3584
duke@435 3585 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, referent, "Ljava/lang/Object;");
duke@435 3586 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, queue, "Ljava/lang/ref/ReferenceQueue;");
duke@435 3587 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, next, "Ljava/lang/ref/Reference;");
duke@435 3588 // Fake field
duke@435 3589 //CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, discovered, "Ljava/lang/ref/Reference;");
duke@435 3590 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, lock, "Ljava/lang/ref/Reference$Lock;");
duke@435 3591 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, pending, "Ljava/lang/ref/Reference;");
duke@435 3592
duke@435 3593 // java.lang.ref.SoftReference
duke@435 3594
duke@435 3595 CHECK_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, timestamp, "J");
duke@435 3596 CHECK_STATIC_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, clock, "J");
duke@435 3597
duke@435 3598 // java.lang.AssertionStatusDirectives
duke@435 3599 //
duke@435 3600 // The CheckAssertionStatusDirectives boolean can be removed from here and
duke@435 3601 // globals.hpp after the AssertionStatusDirectives class has been integrated
duke@435 3602 // into merlin "for some time." Without it, the vm will fail with early
duke@435 3603 // merlin builds.
duke@435 3604
duke@435 3605 if (CheckAssertionStatusDirectives && JDK_Version::is_gte_jdk14x_version()) {
duke@435 3606 const char* nm = "java/lang/AssertionStatusDirectives";
duke@435 3607 const char* sig = "[Ljava/lang/String;";
duke@435 3608 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classes, sig);
duke@435 3609 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classEnabled, "[Z");
duke@435 3610 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packages, sig);
duke@435 3611 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packageEnabled, "[Z");
duke@435 3612 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, deflt, "Z");
duke@435 3613 }
duke@435 3614
duke@435 3615 if (!valid) vm_exit_during_initialization("Hard-coded field offset verification failed");
duke@435 3616 }
duke@435 3617
duke@435 3618 #endif // PRODUCT
duke@435 3619
never@3137 3620 int InjectedField::compute_offset() {
coleenp@4037 3621 Klass* klass_oop = klass();
coleenp@4037 3622 for (AllFieldStream fs(InstanceKlass::cast(klass_oop)); !fs.done(); fs.next()) {
never@3137 3623 if (!may_be_java && !fs.access_flags().is_internal()) {
never@3137 3624 // Only look at injected fields
never@3137 3625 continue;
never@3137 3626 }
never@3137 3627 if (fs.name() == name() && fs.signature() == signature()) {
never@3137 3628 return fs.offset();
never@3137 3629 }
never@3137 3630 }
never@3137 3631 ResourceMark rm;
coleenp@4037 3632 tty->print_cr("Invalid layout of %s at %s/%s%s", InstanceKlass::cast(klass_oop)->external_name(), name()->as_C_string(), signature()->as_C_string(), may_be_java ? " (may_be_java)" : "");
twisti@3969 3633 #ifndef PRODUCT
twisti@3969 3634 klass_oop->print();
twisti@3969 3635 tty->print_cr("all fields:");
coleenp@4037 3636 for (AllFieldStream fs(InstanceKlass::cast(klass_oop)); !fs.done(); fs.next()) {
twisti@3969 3637 tty->print_cr(" name: %s, sig: %s, flags: %08x", fs.name()->as_C_string(), fs.signature()->as_C_string(), fs.access_flags().as_int());
twisti@3969 3638 }
twisti@3969 3639 #endif //PRODUCT
dbuck@7788 3640 vm_exit_during_initialization("Invalid layout of preloaded class: use -XX:+TraceClassLoading to see the origin of the problem class");
never@3137 3641 return -1;
never@3137 3642 }
never@3137 3643
duke@435 3644 void javaClasses_init() {
duke@435 3645 JavaClasses::compute_offsets();
duke@435 3646 JavaClasses::check_offsets();
duke@435 3647 FilteredFieldsMap::initialize(); // must be done after computing offsets.
duke@435 3648 }

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