src/share/vm/classfile/javaClasses.cpp

Wed, 25 Mar 2015 08:16:48 -0400

author
hseigel
date
Wed, 25 Mar 2015 08:16:48 -0400
changeset 7666
6b65121b3258
parent 7391
fe34c5ab0b35
child 7535
7ae4e26cb1e0
child 7683
1a9c5e6e13b7
permissions
-rw-r--r--

7127066: Class verifier accepts an invalid class file
Summary: For *store bytecodes, compare incoming, not outgoing, type state with exception handlers' stack maps.
Reviewed-by: acorn, dholmes

duke@435 1 /*
coleenp@6626 2 * Copyright (c) 1997, 2014, 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
jrose@567 127 fatal("Invalid layout of preloaded 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
jrose@1100 785
coleenp@4037 786 Klass* java_lang_Class::array_klass(oop java_class) {
coleenp@4037 787 Klass* k = ((Klass*)java_class->metadata_field(_array_klass_offset));
hseigel@4278 788 assert(k == NULL || k->is_klass() && k->oop_is_array(), "should be array klass");
duke@435 789 return k;
duke@435 790 }
duke@435 791
duke@435 792
coleenp@4037 793 void java_lang_Class::set_array_klass(oop java_class, Klass* klass) {
hseigel@4278 794 assert(klass->is_klass() && klass->oop_is_array(), "should be array klass");
coleenp@4037 795 java_class->metadata_field_put(_array_klass_offset, klass);
duke@435 796 }
duke@435 797
duke@435 798
duke@435 799 bool java_lang_Class::is_primitive(oop java_class) {
jrose@1100 800 // should assert:
jrose@1100 801 //assert(java_lang_Class::is_instance(java_class), "must be a Class object");
coleenp@4037 802 bool is_primitive = (java_class->metadata_field(_klass_offset) == NULL);
coleenp@4037 803
coleenp@4037 804 #ifdef ASSERT
coleenp@4037 805 if (is_primitive) {
coleenp@4037 806 Klass* k = ((Klass*)java_class->metadata_field(_array_klass_offset));
coleenp@4142 807 assert(k == NULL || is_java_primitive(ArrayKlass::cast(k)->element_type()),
coleenp@4037 808 "Should be either the T_VOID primitive or a java primitive");
coleenp@4037 809 }
coleenp@4037 810 #endif
coleenp@4037 811
coleenp@4037 812 return is_primitive;
duke@435 813 }
duke@435 814
duke@435 815
duke@435 816 BasicType java_lang_Class::primitive_type(oop java_class) {
duke@435 817 assert(java_lang_Class::is_primitive(java_class), "just checking");
coleenp@4037 818 Klass* ak = ((Klass*)java_class->metadata_field(_array_klass_offset));
duke@435 819 BasicType type = T_VOID;
duke@435 820 if (ak != NULL) {
duke@435 821 // Note: create_basic_type_mirror above initializes ak to a non-null value.
coleenp@4142 822 type = ArrayKlass::cast(ak)->element_type();
duke@435 823 } else {
duke@435 824 assert(java_class == Universe::void_mirror(), "only valid non-array primitive");
duke@435 825 }
duke@435 826 assert(Universe::java_mirror(type) == java_class, "must be consistent");
duke@435 827 return type;
duke@435 828 }
duke@435 829
coleenp@4037 830 BasicType java_lang_Class::as_BasicType(oop java_class, Klass** reference_klass) {
jrose@1100 831 assert(java_lang_Class::is_instance(java_class), "must be a Class object");
jrose@1100 832 if (is_primitive(java_class)) {
jrose@1100 833 if (reference_klass != NULL)
jrose@1100 834 (*reference_klass) = NULL;
jrose@1100 835 return primitive_type(java_class);
jrose@1100 836 } else {
jrose@1100 837 if (reference_klass != NULL)
coleenp@4037 838 (*reference_klass) = as_Klass(java_class);
jrose@1100 839 return T_OBJECT;
jrose@1100 840 }
jrose@1100 841 }
jrose@1100 842
duke@435 843
duke@435 844 oop java_lang_Class::primitive_mirror(BasicType t) {
duke@435 845 oop mirror = Universe::java_mirror(t);
never@1577 846 assert(mirror != NULL && mirror->is_a(SystemDictionary::Class_klass()), "must be a Class");
duke@435 847 assert(java_lang_Class::is_primitive(mirror), "must be primitive");
duke@435 848 return mirror;
duke@435 849 }
duke@435 850
duke@435 851 bool java_lang_Class::offsets_computed = false;
duke@435 852 int java_lang_Class::classRedefinedCount_offset = -1;
duke@435 853
duke@435 854 void java_lang_Class::compute_offsets() {
duke@435 855 assert(!offsets_computed, "offsets should be initialized only once");
duke@435 856 offsets_computed = true;
duke@435 857
coleenp@4037 858 Klass* klass_oop = SystemDictionary::Class_klass();
duke@435 859 // The classRedefinedCount field is only present starting in 1.5,
duke@435 860 // so don't go fatal.
jrose@567 861 compute_optional_offset(classRedefinedCount_offset,
never@3137 862 klass_oop, vmSymbols::classRedefinedCount_name(), vmSymbols::int_signature());
never@3137 863
coleenp@7129 864 // Needs to be optional because the old build runs Queens during bootstrapping
coleenp@7129 865 // and jdk8-9 doesn't have coordinated pushes yet.
coleenp@7129 866 compute_optional_offset(_class_loader_offset,
coleenp@7129 867 klass_oop, vmSymbols::classLoader_name(),
coleenp@7129 868 vmSymbols::classloader_signature());
coleenp@7129 869
never@3137 870 CLASS_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET);
duke@435 871 }
duke@435 872
duke@435 873 int java_lang_Class::classRedefinedCount(oop the_class_mirror) {
duke@435 874 if (!JDK_Version::is_gte_jdk15x_version()
duke@435 875 || classRedefinedCount_offset == -1) {
duke@435 876 // The classRedefinedCount field is only present starting in 1.5.
duke@435 877 // If we don't have an offset for it then just return -1 as a marker.
duke@435 878 return -1;
duke@435 879 }
duke@435 880
duke@435 881 return the_class_mirror->int_field(classRedefinedCount_offset);
duke@435 882 }
duke@435 883
duke@435 884 void java_lang_Class::set_classRedefinedCount(oop the_class_mirror, int value) {
duke@435 885 if (!JDK_Version::is_gte_jdk15x_version()
duke@435 886 || classRedefinedCount_offset == -1) {
duke@435 887 // The classRedefinedCount field is only present starting in 1.5.
duke@435 888 // If we don't have an offset for it then nothing to set.
duke@435 889 return;
duke@435 890 }
duke@435 891
duke@435 892 the_class_mirror->int_field_put(classRedefinedCount_offset, value);
duke@435 893 }
duke@435 894
duke@435 895
duke@435 896 // Note: JDK1.1 and before had a privateInfo_offset field which was used for the
duke@435 897 // platform thread structure, and a eetop offset which was used for thread
duke@435 898 // local storage (and unused by the HotSpot VM). In JDK1.2 the two structures
duke@435 899 // merged, so in the HotSpot VM we just use the eetop field for the thread
duke@435 900 // instead of the privateInfo_offset.
duke@435 901 //
duke@435 902 // Note: The stackSize field is only present starting in 1.4.
duke@435 903
duke@435 904 int java_lang_Thread::_name_offset = 0;
duke@435 905 int java_lang_Thread::_group_offset = 0;
duke@435 906 int java_lang_Thread::_contextClassLoader_offset = 0;
duke@435 907 int java_lang_Thread::_inheritedAccessControlContext_offset = 0;
duke@435 908 int java_lang_Thread::_priority_offset = 0;
duke@435 909 int java_lang_Thread::_eetop_offset = 0;
duke@435 910 int java_lang_Thread::_daemon_offset = 0;
duke@435 911 int java_lang_Thread::_stillborn_offset = 0;
duke@435 912 int java_lang_Thread::_stackSize_offset = 0;
duke@435 913 int java_lang_Thread::_tid_offset = 0;
duke@435 914 int java_lang_Thread::_thread_status_offset = 0;
duke@435 915 int java_lang_Thread::_park_blocker_offset = 0;
duke@435 916 int java_lang_Thread::_park_event_offset = 0 ;
duke@435 917
duke@435 918
duke@435 919 void java_lang_Thread::compute_offsets() {
duke@435 920 assert(_group_offset == 0, "offsets should be initialized only once");
duke@435 921
coleenp@4037 922 Klass* k = SystemDictionary::Thread_klass();
jrose@567 923 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::char_array_signature());
jrose@567 924 compute_offset(_group_offset, k, vmSymbols::group_name(), vmSymbols::threadgroup_signature());
jrose@567 925 compute_offset(_contextClassLoader_offset, k, vmSymbols::contextClassLoader_name(), vmSymbols::classloader_signature());
jrose@567 926 compute_offset(_inheritedAccessControlContext_offset, k, vmSymbols::inheritedAccessControlContext_name(), vmSymbols::accesscontrolcontext_signature());
jrose@567 927 compute_offset(_priority_offset, k, vmSymbols::priority_name(), vmSymbols::int_signature());
jrose@567 928 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature());
jrose@567 929 compute_offset(_eetop_offset, k, vmSymbols::eetop_name(), vmSymbols::long_signature());
jrose@567 930 compute_offset(_stillborn_offset, k, vmSymbols::stillborn_name(), vmSymbols::bool_signature());
duke@435 931 // The stackSize field is only present starting in 1.4, so don't go fatal.
jrose@567 932 compute_optional_offset(_stackSize_offset, k, vmSymbols::stackSize_name(), vmSymbols::long_signature());
duke@435 933 // The tid and thread_status fields are only present starting in 1.5, so don't go fatal.
jrose@567 934 compute_optional_offset(_tid_offset, k, vmSymbols::thread_id_name(), vmSymbols::long_signature());
jrose@567 935 compute_optional_offset(_thread_status_offset, k, vmSymbols::thread_status_name(), vmSymbols::int_signature());
duke@435 936 // The parkBlocker field is only present starting in 1.6, so don't go fatal.
jrose@567 937 compute_optional_offset(_park_blocker_offset, k, vmSymbols::park_blocker_name(), vmSymbols::object_signature());
jrose@567 938 compute_optional_offset(_park_event_offset, k, vmSymbols::park_event_name(),
duke@435 939 vmSymbols::long_signature());
duke@435 940 }
duke@435 941
duke@435 942
duke@435 943 JavaThread* java_lang_Thread::thread(oop java_thread) {
coleenp@548 944 return (JavaThread*)java_thread->address_field(_eetop_offset);
duke@435 945 }
duke@435 946
duke@435 947
duke@435 948 void java_lang_Thread::set_thread(oop java_thread, JavaThread* thread) {
coleenp@548 949 java_thread->address_field_put(_eetop_offset, (address)thread);
duke@435 950 }
duke@435 951
duke@435 952
duke@435 953 typeArrayOop java_lang_Thread::name(oop java_thread) {
duke@435 954 oop name = java_thread->obj_field(_name_offset);
coleenp@4142 955 assert(name == NULL || (name->is_typeArray() && TypeArrayKlass::cast(name->klass())->element_type() == T_CHAR), "just checking");
duke@435 956 return typeArrayOop(name);
duke@435 957 }
duke@435 958
duke@435 959
duke@435 960 void java_lang_Thread::set_name(oop java_thread, typeArrayOop name) {
duke@435 961 assert(java_thread->obj_field(_name_offset) == NULL, "name should be NULL");
duke@435 962 java_thread->obj_field_put(_name_offset, name);
duke@435 963 }
duke@435 964
duke@435 965
duke@435 966 ThreadPriority java_lang_Thread::priority(oop java_thread) {
duke@435 967 return (ThreadPriority)java_thread->int_field(_priority_offset);
duke@435 968 }
duke@435 969
duke@435 970
duke@435 971 void java_lang_Thread::set_priority(oop java_thread, ThreadPriority priority) {
duke@435 972 java_thread->int_field_put(_priority_offset, priority);
duke@435 973 }
duke@435 974
duke@435 975
duke@435 976 oop java_lang_Thread::threadGroup(oop java_thread) {
duke@435 977 return java_thread->obj_field(_group_offset);
duke@435 978 }
duke@435 979
duke@435 980
duke@435 981 bool java_lang_Thread::is_stillborn(oop java_thread) {
duke@435 982 return java_thread->bool_field(_stillborn_offset) != 0;
duke@435 983 }
duke@435 984
duke@435 985
duke@435 986 // We never have reason to turn the stillborn bit off
duke@435 987 void java_lang_Thread::set_stillborn(oop java_thread) {
duke@435 988 java_thread->bool_field_put(_stillborn_offset, true);
duke@435 989 }
duke@435 990
duke@435 991
duke@435 992 bool java_lang_Thread::is_alive(oop java_thread) {
duke@435 993 JavaThread* thr = java_lang_Thread::thread(java_thread);
duke@435 994 return (thr != NULL);
duke@435 995 }
duke@435 996
duke@435 997
duke@435 998 bool java_lang_Thread::is_daemon(oop java_thread) {
duke@435 999 return java_thread->bool_field(_daemon_offset) != 0;
duke@435 1000 }
duke@435 1001
duke@435 1002
duke@435 1003 void java_lang_Thread::set_daemon(oop java_thread) {
duke@435 1004 java_thread->bool_field_put(_daemon_offset, true);
duke@435 1005 }
duke@435 1006
duke@435 1007 oop java_lang_Thread::context_class_loader(oop java_thread) {
duke@435 1008 return java_thread->obj_field(_contextClassLoader_offset);
duke@435 1009 }
duke@435 1010
duke@435 1011 oop java_lang_Thread::inherited_access_control_context(oop java_thread) {
duke@435 1012 return java_thread->obj_field(_inheritedAccessControlContext_offset);
duke@435 1013 }
duke@435 1014
duke@435 1015
duke@435 1016 jlong java_lang_Thread::stackSize(oop java_thread) {
duke@435 1017 // The stackSize field is only present starting in 1.4
duke@435 1018 if (_stackSize_offset > 0) {
duke@435 1019 assert(JDK_Version::is_gte_jdk14x_version(), "sanity check");
duke@435 1020 return java_thread->long_field(_stackSize_offset);
duke@435 1021 } else {
duke@435 1022 return 0;
duke@435 1023 }
duke@435 1024 }
duke@435 1025
duke@435 1026 // Write the thread status value to threadStatus field in java.lang.Thread java class.
duke@435 1027 void java_lang_Thread::set_thread_status(oop java_thread,
duke@435 1028 java_lang_Thread::ThreadStatus status) {
duke@435 1029 // The threadStatus is only present starting in 1.5
duke@435 1030 if (_thread_status_offset > 0) {
duke@435 1031 java_thread->int_field_put(_thread_status_offset, status);
duke@435 1032 }
duke@435 1033 }
duke@435 1034
duke@435 1035 // Read thread status value from threadStatus field in java.lang.Thread java class.
duke@435 1036 java_lang_Thread::ThreadStatus java_lang_Thread::get_thread_status(oop java_thread) {
sla@5237 1037 assert(Thread::current()->is_Watcher_thread() || Thread::current()->is_VM_thread() ||
duke@435 1038 JavaThread::current()->thread_state() == _thread_in_vm,
duke@435 1039 "Java Thread is not running in vm");
duke@435 1040 // The threadStatus is only present starting in 1.5
duke@435 1041 if (_thread_status_offset > 0) {
duke@435 1042 return (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset);
duke@435 1043 } else {
duke@435 1044 // All we can easily figure out is if it is alive, but that is
duke@435 1045 // enough info for a valid unknown status.
duke@435 1046 // These aren't restricted to valid set ThreadStatus values, so
duke@435 1047 // use JVMTI values and cast.
duke@435 1048 JavaThread* thr = java_lang_Thread::thread(java_thread);
duke@435 1049 if (thr == NULL) {
duke@435 1050 // the thread hasn't run yet or is in the process of exiting
duke@435 1051 return NEW;
duke@435 1052 }
duke@435 1053 return (java_lang_Thread::ThreadStatus)JVMTI_THREAD_STATE_ALIVE;
duke@435 1054 }
duke@435 1055 }
duke@435 1056
duke@435 1057
duke@435 1058 jlong java_lang_Thread::thread_id(oop java_thread) {
duke@435 1059 // The thread ID field is only present starting in 1.5
duke@435 1060 if (_tid_offset > 0) {
duke@435 1061 return java_thread->long_field(_tid_offset);
duke@435 1062 } else {
duke@435 1063 return 0;
duke@435 1064 }
duke@435 1065 }
duke@435 1066
duke@435 1067 oop java_lang_Thread::park_blocker(oop java_thread) {
kamg@677 1068 assert(JDK_Version::current().supports_thread_park_blocker() &&
kamg@677 1069 _park_blocker_offset != 0, "Must support parkBlocker field");
duke@435 1070
duke@435 1071 if (_park_blocker_offset > 0) {
duke@435 1072 return java_thread->obj_field(_park_blocker_offset);
duke@435 1073 }
duke@435 1074
duke@435 1075 return NULL;
duke@435 1076 }
duke@435 1077
duke@435 1078 jlong java_lang_Thread::park_event(oop java_thread) {
duke@435 1079 if (_park_event_offset > 0) {
duke@435 1080 return java_thread->long_field(_park_event_offset);
duke@435 1081 }
duke@435 1082 return 0;
duke@435 1083 }
duke@435 1084
duke@435 1085 bool java_lang_Thread::set_park_event(oop java_thread, jlong ptr) {
duke@435 1086 if (_park_event_offset > 0) {
duke@435 1087 java_thread->long_field_put(_park_event_offset, ptr);
duke@435 1088 return true;
duke@435 1089 }
duke@435 1090 return false;
duke@435 1091 }
duke@435 1092
duke@435 1093
duke@435 1094 const char* java_lang_Thread::thread_status_name(oop java_thread) {
duke@435 1095 assert(JDK_Version::is_gte_jdk15x_version() && _thread_status_offset != 0, "Must have thread status");
duke@435 1096 ThreadStatus status = (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset);
duke@435 1097 switch (status) {
duke@435 1098 case NEW : return "NEW";
duke@435 1099 case RUNNABLE : return "RUNNABLE";
duke@435 1100 case SLEEPING : return "TIMED_WAITING (sleeping)";
duke@435 1101 case IN_OBJECT_WAIT : return "WAITING (on object monitor)";
duke@435 1102 case IN_OBJECT_WAIT_TIMED : return "TIMED_WAITING (on object monitor)";
duke@435 1103 case PARKED : return "WAITING (parking)";
duke@435 1104 case PARKED_TIMED : return "TIMED_WAITING (parking)";
duke@435 1105 case BLOCKED_ON_MONITOR_ENTER : return "BLOCKED (on object monitor)";
duke@435 1106 case TERMINATED : return "TERMINATED";
duke@435 1107 default : return "UNKNOWN";
duke@435 1108 };
duke@435 1109 }
duke@435 1110 int java_lang_ThreadGroup::_parent_offset = 0;
duke@435 1111 int java_lang_ThreadGroup::_name_offset = 0;
duke@435 1112 int java_lang_ThreadGroup::_threads_offset = 0;
duke@435 1113 int java_lang_ThreadGroup::_groups_offset = 0;
duke@435 1114 int java_lang_ThreadGroup::_maxPriority_offset = 0;
duke@435 1115 int java_lang_ThreadGroup::_destroyed_offset = 0;
duke@435 1116 int java_lang_ThreadGroup::_daemon_offset = 0;
duke@435 1117 int java_lang_ThreadGroup::_vmAllowSuspension_offset = 0;
duke@435 1118 int java_lang_ThreadGroup::_nthreads_offset = 0;
duke@435 1119 int java_lang_ThreadGroup::_ngroups_offset = 0;
duke@435 1120
duke@435 1121 oop java_lang_ThreadGroup::parent(oop java_thread_group) {
duke@435 1122 assert(java_thread_group->is_oop(), "thread group must be oop");
duke@435 1123 return java_thread_group->obj_field(_parent_offset);
duke@435 1124 }
duke@435 1125
duke@435 1126 // ("name as oop" accessor is not necessary)
duke@435 1127
duke@435 1128 typeArrayOop java_lang_ThreadGroup::name(oop java_thread_group) {
duke@435 1129 oop name = java_thread_group->obj_field(_name_offset);
duke@435 1130 // ThreadGroup.name can be null
duke@435 1131 return name == NULL ? (typeArrayOop)NULL : java_lang_String::value(name);
duke@435 1132 }
duke@435 1133
duke@435 1134 int java_lang_ThreadGroup::nthreads(oop java_thread_group) {
duke@435 1135 assert(java_thread_group->is_oop(), "thread group must be oop");
duke@435 1136 return java_thread_group->int_field(_nthreads_offset);
duke@435 1137 }
duke@435 1138
duke@435 1139 objArrayOop java_lang_ThreadGroup::threads(oop java_thread_group) {
duke@435 1140 oop threads = java_thread_group->obj_field(_threads_offset);
duke@435 1141 assert(threads != NULL, "threadgroups should have threads");
duke@435 1142 assert(threads->is_objArray(), "just checking"); // Todo: Add better type checking code
duke@435 1143 return objArrayOop(threads);
duke@435 1144 }
duke@435 1145
duke@435 1146 int java_lang_ThreadGroup::ngroups(oop java_thread_group) {
duke@435 1147 assert(java_thread_group->is_oop(), "thread group must be oop");
duke@435 1148 return java_thread_group->int_field(_ngroups_offset);
duke@435 1149 }
duke@435 1150
duke@435 1151 objArrayOop java_lang_ThreadGroup::groups(oop java_thread_group) {
duke@435 1152 oop groups = java_thread_group->obj_field(_groups_offset);
duke@435 1153 assert(groups == NULL || groups->is_objArray(), "just checking"); // Todo: Add better type checking code
duke@435 1154 return objArrayOop(groups);
duke@435 1155 }
duke@435 1156
duke@435 1157 ThreadPriority java_lang_ThreadGroup::maxPriority(oop java_thread_group) {
duke@435 1158 assert(java_thread_group->is_oop(), "thread group must be oop");
duke@435 1159 return (ThreadPriority) java_thread_group->int_field(_maxPriority_offset);
duke@435 1160 }
duke@435 1161
duke@435 1162 bool java_lang_ThreadGroup::is_destroyed(oop java_thread_group) {
duke@435 1163 assert(java_thread_group->is_oop(), "thread group must be oop");
duke@435 1164 return java_thread_group->bool_field(_destroyed_offset) != 0;
duke@435 1165 }
duke@435 1166
duke@435 1167 bool java_lang_ThreadGroup::is_daemon(oop java_thread_group) {
duke@435 1168 assert(java_thread_group->is_oop(), "thread group must be oop");
duke@435 1169 return java_thread_group->bool_field(_daemon_offset) != 0;
duke@435 1170 }
duke@435 1171
duke@435 1172 bool java_lang_ThreadGroup::is_vmAllowSuspension(oop java_thread_group) {
duke@435 1173 assert(java_thread_group->is_oop(), "thread group must be oop");
duke@435 1174 return java_thread_group->bool_field(_vmAllowSuspension_offset) != 0;
duke@435 1175 }
duke@435 1176
duke@435 1177 void java_lang_ThreadGroup::compute_offsets() {
duke@435 1178 assert(_parent_offset == 0, "offsets should be initialized only once");
duke@435 1179
coleenp@4037 1180 Klass* k = SystemDictionary::ThreadGroup_klass();
duke@435 1181
jrose@567 1182 compute_offset(_parent_offset, k, vmSymbols::parent_name(), vmSymbols::threadgroup_signature());
jrose@567 1183 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature());
jrose@567 1184 compute_offset(_threads_offset, k, vmSymbols::threads_name(), vmSymbols::thread_array_signature());
jrose@567 1185 compute_offset(_groups_offset, k, vmSymbols::groups_name(), vmSymbols::threadgroup_array_signature());
jrose@567 1186 compute_offset(_maxPriority_offset, k, vmSymbols::maxPriority_name(), vmSymbols::int_signature());
jrose@567 1187 compute_offset(_destroyed_offset, k, vmSymbols::destroyed_name(), vmSymbols::bool_signature());
jrose@567 1188 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature());
jrose@567 1189 compute_offset(_vmAllowSuspension_offset, k, vmSymbols::vmAllowSuspension_name(), vmSymbols::bool_signature());
jrose@567 1190 compute_offset(_nthreads_offset, k, vmSymbols::nthreads_name(), vmSymbols::int_signature());
jrose@567 1191 compute_offset(_ngroups_offset, k, vmSymbols::ngroups_name(), vmSymbols::int_signature());
duke@435 1192 }
duke@435 1193
dholmes@3018 1194 oop java_lang_Throwable::unassigned_stacktrace() {
coleenp@4037 1195 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Throwable_klass());
dholmes@3018 1196 address addr = ik->static_field_addr(static_unassigned_stacktrace_offset);
dholmes@3018 1197 if (UseCompressedOops) {
dholmes@3018 1198 return oopDesc::load_decode_heap_oop((narrowOop *)addr);
dholmes@3018 1199 } else {
dholmes@3018 1200 return oopDesc::load_decode_heap_oop((oop*)addr);
dholmes@3018 1201 }
dholmes@3018 1202 }
dholmes@3018 1203
duke@435 1204 oop java_lang_Throwable::backtrace(oop throwable) {
duke@435 1205 return throwable->obj_field_acquire(backtrace_offset);
duke@435 1206 }
duke@435 1207
duke@435 1208
duke@435 1209 void java_lang_Throwable::set_backtrace(oop throwable, oop value) {
duke@435 1210 throwable->release_obj_field_put(backtrace_offset, value);
duke@435 1211 }
duke@435 1212
duke@435 1213
duke@435 1214 oop java_lang_Throwable::message(oop throwable) {
duke@435 1215 return throwable->obj_field(detailMessage_offset);
duke@435 1216 }
duke@435 1217
duke@435 1218
duke@435 1219 oop java_lang_Throwable::message(Handle throwable) {
duke@435 1220 return throwable->obj_field(detailMessage_offset);
duke@435 1221 }
duke@435 1222
duke@435 1223
duke@435 1224 void java_lang_Throwable::set_message(oop throwable, oop value) {
duke@435 1225 throwable->obj_field_put(detailMessage_offset, value);
duke@435 1226 }
duke@435 1227
duke@435 1228
dholmes@3018 1229 void java_lang_Throwable::set_stacktrace(oop throwable, oop st_element_array) {
dholmes@3018 1230 throwable->obj_field_put(stackTrace_offset, st_element_array);
dholmes@3018 1231 }
dholmes@3018 1232
duke@435 1233 void java_lang_Throwable::clear_stacktrace(oop throwable) {
duke@435 1234 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4");
dholmes@3018 1235 set_stacktrace(throwable, NULL);
duke@435 1236 }
duke@435 1237
duke@435 1238
duke@435 1239 void java_lang_Throwable::print(oop throwable, outputStream* st) {
duke@435 1240 ResourceMark rm;
coleenp@4037 1241 Klass* k = throwable->klass();
duke@435 1242 assert(k != NULL, "just checking");
coleenp@4037 1243 st->print("%s", InstanceKlass::cast(k)->external_name());
duke@435 1244 oop msg = message(throwable);
duke@435 1245 if (msg != NULL) {
duke@435 1246 st->print(": %s", java_lang_String::as_utf8_string(msg));
duke@435 1247 }
duke@435 1248 }
duke@435 1249
duke@435 1250
duke@435 1251 void java_lang_Throwable::print(Handle throwable, outputStream* st) {
duke@435 1252 ResourceMark rm;
coleenp@4037 1253 Klass* k = throwable->klass();
duke@435 1254 assert(k != NULL, "just checking");
coleenp@4037 1255 st->print("%s", InstanceKlass::cast(k)->external_name());
duke@435 1256 oop msg = message(throwable);
duke@435 1257 if (msg != NULL) {
duke@435 1258 st->print(": %s", java_lang_String::as_utf8_string(msg));
duke@435 1259 }
duke@435 1260 }
duke@435 1261
coleenp@4466 1262 // After this many redefines, the stack trace is unreliable.
coleenp@4466 1263 const int MAX_VERSION = USHRT_MAX;
coleenp@4466 1264
coleenp@4466 1265 // Helper backtrace functions to store bci|version together.
coleenp@4466 1266 static inline int merge_bci_and_version(int bci, int version) {
coleenp@4466 1267 // only store u2 for version, checking for overflow.
coleenp@4466 1268 if (version > USHRT_MAX || version < 0) version = MAX_VERSION;
coleenp@4466 1269 assert((jushort)bci == bci, "bci should be short");
coleenp@4466 1270 return build_int_from_shorts(version, bci);
coleenp@4466 1271 }
coleenp@4466 1272
coleenp@4466 1273 static inline int bci_at(unsigned int merged) {
coleenp@4466 1274 return extract_high_short_from_int(merged);
coleenp@4466 1275 }
coleenp@4466 1276 static inline int version_at(unsigned int merged) {
coleenp@4466 1277 return extract_low_short_from_int(merged);
coleenp@4466 1278 }
coleenp@4466 1279
coleenp@4466 1280 static inline bool version_matches(Method* method, int version) {
coleenp@4466 1281 return (method->constants()->version() == version && version < MAX_VERSION);
coleenp@4466 1282 }
coleenp@4466 1283
coleenp@4466 1284 static inline int get_line_number(Method* method, int bci) {
coleenp@4466 1285 int line_number = 0;
coleenp@4466 1286 if (method->is_native()) {
coleenp@4466 1287 // Negative value different from -1 below, enabling Java code in
coleenp@4466 1288 // class java.lang.StackTraceElement to distinguish "native" from
coleenp@4466 1289 // "no LineNumberTable". JDK tests for -2.
coleenp@4466 1290 line_number = -2;
duke@435 1291 } else {
coleenp@4466 1292 // Returns -1 if no LineNumberTable, and otherwise actual line number
coleenp@4466 1293 line_number = method->line_number_from_bci(bci);
coleenp@4466 1294 if (line_number == -1 && ShowHiddenFrames) {
coleenp@4466 1295 line_number = bci + 1000000;
duke@435 1296 }
duke@435 1297 }
coleenp@4466 1298 return line_number;
duke@435 1299 }
duke@435 1300
duke@435 1301 // This class provides a simple wrapper over the internal structure of
duke@435 1302 // exception backtrace to insulate users of the backtrace from needing
duke@435 1303 // to know what it looks like.
duke@435 1304 class BacktraceBuilder: public StackObj {
duke@435 1305 private:
duke@435 1306 Handle _backtrace;
duke@435 1307 objArrayOop _head;
coleenp@4037 1308 typeArrayOop _methods;
duke@435 1309 typeArrayOop _bcis;
coleenp@4037 1310 objArrayOop _mirrors;
duke@435 1311 int _index;
duke@435 1312 No_Safepoint_Verifier _nsv;
duke@435 1313
duke@435 1314 public:
duke@435 1315
duke@435 1316 enum {
duke@435 1317 trace_methods_offset = java_lang_Throwable::trace_methods_offset,
coleenp@4466 1318 trace_bcis_offset = java_lang_Throwable::trace_bcis_offset,
coleenp@4037 1319 trace_mirrors_offset = java_lang_Throwable::trace_mirrors_offset,
duke@435 1320 trace_next_offset = java_lang_Throwable::trace_next_offset,
duke@435 1321 trace_size = java_lang_Throwable::trace_size,
duke@435 1322 trace_chunk_size = java_lang_Throwable::trace_chunk_size
duke@435 1323 };
duke@435 1324
coleenp@4466 1325 // get info out of chunks
coleenp@4466 1326 static typeArrayOop get_methods(objArrayHandle chunk) {
coleenp@4466 1327 typeArrayOop methods = typeArrayOop(chunk->obj_at(trace_methods_offset));
coleenp@4466 1328 assert(methods != NULL, "method array should be initialized in backtrace");
coleenp@4466 1329 return methods;
coleenp@4466 1330 }
coleenp@4466 1331 static typeArrayOop get_bcis(objArrayHandle chunk) {
coleenp@4466 1332 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset));
coleenp@4466 1333 assert(bcis != NULL, "bci array should be initialized in backtrace");
coleenp@4466 1334 return bcis;
coleenp@4466 1335 }
coleenp@4466 1336 static objArrayOop get_mirrors(objArrayHandle chunk) {
coleenp@4466 1337 objArrayOop mirrors = objArrayOop(chunk->obj_at(trace_mirrors_offset));
coleenp@4466 1338 assert(mirrors != NULL, "mirror array should be initialized in backtrace");
coleenp@4466 1339 return mirrors;
coleenp@4466 1340 }
coleenp@4466 1341
duke@435 1342 // constructor for new backtrace
coleenp@4037 1343 BacktraceBuilder(TRAPS): _methods(NULL), _bcis(NULL), _head(NULL), _mirrors(NULL) {
duke@435 1344 expand(CHECK);
duke@435 1345 _backtrace = _head;
duke@435 1346 _index = 0;
duke@435 1347 }
duke@435 1348
coleenp@4466 1349 BacktraceBuilder(objArrayHandle backtrace) {
coleenp@4466 1350 _methods = get_methods(backtrace);
coleenp@4466 1351 _bcis = get_bcis(backtrace);
coleenp@4466 1352 _mirrors = get_mirrors(backtrace);
coleenp@4466 1353 assert(_methods->length() == _bcis->length() &&
coleenp@4466 1354 _methods->length() == _mirrors->length(),
coleenp@4466 1355 "method and source information arrays should match");
coleenp@4466 1356
coleenp@4466 1357 // head is the preallocated backtrace
coleenp@4466 1358 _backtrace = _head = backtrace();
coleenp@4466 1359 _index = 0;
coleenp@4466 1360 }
coleenp@4466 1361
duke@435 1362 void expand(TRAPS) {
duke@435 1363 objArrayHandle old_head(THREAD, _head);
duke@435 1364 Pause_No_Safepoint_Verifier pnsv(&_nsv);
duke@435 1365
duke@435 1366 objArrayOop head = oopFactory::new_objectArray(trace_size, CHECK);
duke@435 1367 objArrayHandle new_head(THREAD, head);
duke@435 1368
coleenp@4466 1369 typeArrayOop methods = oopFactory::new_shortArray(trace_chunk_size, CHECK);
coleenp@4037 1370 typeArrayHandle new_methods(THREAD, methods);
duke@435 1371
coleenp@4466 1372 typeArrayOop bcis = oopFactory::new_intArray(trace_chunk_size, CHECK);
duke@435 1373 typeArrayHandle new_bcis(THREAD, bcis);
duke@435 1374
coleenp@4037 1375 objArrayOop mirrors = oopFactory::new_objectArray(trace_chunk_size, CHECK);
coleenp@4037 1376 objArrayHandle new_mirrors(THREAD, mirrors);
coleenp@4037 1377
duke@435 1378 if (!old_head.is_null()) {
duke@435 1379 old_head->obj_at_put(trace_next_offset, new_head());
duke@435 1380 }
duke@435 1381 new_head->obj_at_put(trace_methods_offset, new_methods());
duke@435 1382 new_head->obj_at_put(trace_bcis_offset, new_bcis());
coleenp@4037 1383 new_head->obj_at_put(trace_mirrors_offset, new_mirrors());
duke@435 1384
duke@435 1385 _head = new_head();
duke@435 1386 _methods = new_methods();
coleenp@4466 1387 _bcis = new_bcis();
coleenp@4037 1388 _mirrors = new_mirrors();
duke@435 1389 _index = 0;
duke@435 1390 }
duke@435 1391
duke@435 1392 oop backtrace() {
duke@435 1393 return _backtrace();
duke@435 1394 }
duke@435 1395
coleenp@4037 1396 inline void push(Method* method, int bci, TRAPS) {
never@3444 1397 // Smear the -1 bci to 0 since the array only holds unsigned
never@3444 1398 // shorts. The later line number lookup would just smear the -1
never@3444 1399 // to a 0 even if it could be recorded.
never@3444 1400 if (bci == SynchronizationEntryBCI) bci = 0;
never@3444 1401
duke@435 1402 if (_index >= trace_chunk_size) {
duke@435 1403 methodHandle mhandle(THREAD, method);
duke@435 1404 expand(CHECK);
duke@435 1405 method = mhandle();
duke@435 1406 }
duke@435 1407
coleenp@4466 1408 _methods->short_at_put(_index, method->method_idnum());
coleenp@4466 1409 _bcis->int_at_put(_index, merge_bci_and_version(bci, method->constants()->version()));
coleenp@4466 1410
coleenp@4466 1411 // We need to save the mirrors in the backtrace to keep the class
coleenp@4466 1412 // from being unloaded while we still have this stack trace.
coleenp@4466 1413 assert(method->method_holder()->java_mirror() != NULL, "never push null for mirror");
coleenp@4037 1414 _mirrors->obj_at_put(_index, method->method_holder()->java_mirror());
duke@435 1415 _index++;
duke@435 1416 }
duke@435 1417
coleenp@4466 1418 };
coleenp@4466 1419
coleenp@4466 1420 // Print stack trace element to resource allocated buffer
coleenp@4466 1421 char* java_lang_Throwable::print_stack_element_to_buffer(Handle mirror,
coleenp@4466 1422 int method_id, int version, int bci) {
coleenp@4466 1423
coleenp@4466 1424 // Get strings and string lengths
coleenp@4466 1425 InstanceKlass* holder = InstanceKlass::cast(java_lang_Class::as_Klass(mirror()));
coleenp@4466 1426 const char* klass_name = holder->external_name();
coleenp@4466 1427 int buf_len = (int)strlen(klass_name);
coleenp@4466 1428
coleenp@5835 1429 // The method id may point to an obsolete method, can't get more stack information
coleenp@4466 1430 Method* method = holder->method_with_idnum(method_id);
coleenp@5835 1431 if (method == NULL) {
coleenp@5835 1432 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64);
coleenp@5835 1433 // This is what the java code prints in this case - added Redefined
coleenp@5835 1434 sprintf(buf, "\tat %s.null (Redefined)", klass_name);
coleenp@5835 1435 return buf;
coleenp@5835 1436 }
coleenp@5835 1437
coleenp@4466 1438 char* method_name = method->name()->as_C_string();
coleenp@4466 1439 buf_len += (int)strlen(method_name);
coleenp@4466 1440
coleenp@4466 1441 char* source_file_name = NULL;
coleenp@4466 1442 if (version_matches(method, version)) {
coleenp@4466 1443 Symbol* source = holder->source_file_name();
coleenp@4466 1444 if (source != NULL) {
coleenp@4466 1445 source_file_name = source->as_C_string();
coleenp@4466 1446 buf_len += (int)strlen(source_file_name);
coleenp@4466 1447 }
duke@435 1448 }
duke@435 1449
coleenp@4466 1450 // Allocate temporary buffer with extra space for formatting and line number
coleenp@4466 1451 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64);
coleenp@4466 1452
coleenp@4466 1453 // Print stack trace line in buffer
coleenp@4466 1454 sprintf(buf, "\tat %s.%s", klass_name, method_name);
coleenp@4466 1455
coleenp@4466 1456 if (!version_matches(method, version)) {
coleenp@4466 1457 strcat(buf, "(Redefined)");
coleenp@4466 1458 } else {
coleenp@4466 1459 int line_number = get_line_number(method, bci);
coleenp@4466 1460 if (line_number == -2) {
coleenp@4466 1461 strcat(buf, "(Native Method)");
coleenp@4466 1462 } else {
coleenp@4466 1463 if (source_file_name != NULL && (line_number != -1)) {
coleenp@4466 1464 // Sourcename and linenumber
coleenp@4466 1465 sprintf(buf + (int)strlen(buf), "(%s:%d)", source_file_name, line_number);
coleenp@4466 1466 } else if (source_file_name != NULL) {
coleenp@4466 1467 // Just sourcename
coleenp@4466 1468 sprintf(buf + (int)strlen(buf), "(%s)", source_file_name);
coleenp@4466 1469 } else {
coleenp@4466 1470 // Neither sourcename nor linenumber
coleenp@4466 1471 sprintf(buf + (int)strlen(buf), "(Unknown Source)");
coleenp@4466 1472 }
coleenp@4466 1473 nmethod* nm = method->code();
coleenp@4466 1474 if (WizardMode && nm != NULL) {
coleenp@4466 1475 sprintf(buf + (int)strlen(buf), "(nmethod " INTPTR_FORMAT ")", (intptr_t)nm);
coleenp@4466 1476 }
coleenp@4466 1477 }
duke@435 1478 }
coleenp@4466 1479
coleenp@4466 1480 return buf;
coleenp@4466 1481 }
coleenp@4466 1482
coleenp@4466 1483 void java_lang_Throwable::print_stack_element(outputStream *st, Handle mirror,
coleenp@4466 1484 int method_id, int version, int bci) {
coleenp@4466 1485 ResourceMark rm;
coleenp@4466 1486 char* buf = print_stack_element_to_buffer(mirror, method_id, version, bci);
coleenp@4466 1487 st->print_cr("%s", buf);
coleenp@4466 1488 }
coleenp@4466 1489
coleenp@4466 1490 void java_lang_Throwable::print_stack_element(outputStream *st, methodHandle method, int bci) {
coleenp@4466 1491 Handle mirror = method->method_holder()->java_mirror();
coleenp@4466 1492 int method_id = method->method_idnum();
coleenp@4466 1493 int version = method->constants()->version();
coleenp@4466 1494 print_stack_element(st, mirror, method_id, version, bci);
coleenp@4466 1495 }
coleenp@4466 1496
coleenp@4466 1497 const char* java_lang_Throwable::no_stack_trace_message() {
coleenp@4466 1498 return "\t<<no stack trace available>>";
coleenp@4466 1499 }
coleenp@4466 1500
coleenp@4466 1501
coleenp@4466 1502 // Currently used only for exceptions occurring during startup
coleenp@4466 1503 void java_lang_Throwable::print_stack_trace(oop throwable, outputStream* st) {
coleenp@4466 1504 Thread *THREAD = Thread::current();
coleenp@4466 1505 Handle h_throwable(THREAD, throwable);
coleenp@4466 1506 while (h_throwable.not_null()) {
coleenp@4466 1507 objArrayHandle result (THREAD, objArrayOop(backtrace(h_throwable())));
coleenp@4466 1508 if (result.is_null()) {
drchase@6680 1509 st->print_cr("%s", no_stack_trace_message());
coleenp@4466 1510 return;
coleenp@4466 1511 }
coleenp@4466 1512
coleenp@4466 1513 while (result.not_null()) {
coleenp@4466 1514
coleenp@4466 1515 // Get method id, bci, version and mirror from chunk
coleenp@4466 1516 typeArrayHandle methods (THREAD, BacktraceBuilder::get_methods(result));
coleenp@4466 1517 typeArrayHandle bcis (THREAD, BacktraceBuilder::get_bcis(result));
coleenp@4466 1518 objArrayHandle mirrors (THREAD, BacktraceBuilder::get_mirrors(result));
coleenp@4466 1519
coleenp@4466 1520 int length = methods()->length();
coleenp@4466 1521 for (int index = 0; index < length; index++) {
coleenp@4466 1522 Handle mirror(THREAD, mirrors->obj_at(index));
coleenp@4466 1523 // NULL mirror means end of stack trace
coleenp@4466 1524 if (mirror.is_null()) goto handle_cause;
coleenp@4466 1525 int method = methods->short_at(index);
coleenp@4466 1526 int version = version_at(bcis->int_at(index));
coleenp@4466 1527 int bci = bci_at(bcis->int_at(index));
coleenp@4466 1528 print_stack_element(st, mirror, method, version, bci);
coleenp@4466 1529 }
coleenp@4466 1530 result = objArrayHandle(THREAD, objArrayOop(result->obj_at(trace_next_offset)));
coleenp@4466 1531 }
coleenp@4466 1532 handle_cause:
coleenp@4466 1533 {
coleenp@4466 1534 EXCEPTION_MARK;
coleenp@4466 1535 JavaValue cause(T_OBJECT);
coleenp@4466 1536 JavaCalls::call_virtual(&cause,
coleenp@4466 1537 h_throwable,
coleenp@4466 1538 KlassHandle(THREAD, h_throwable->klass()),
coleenp@4466 1539 vmSymbols::getCause_name(),
coleenp@4466 1540 vmSymbols::void_throwable_signature(),
coleenp@4466 1541 THREAD);
coleenp@4466 1542 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM.
coleenp@4466 1543 if (HAS_PENDING_EXCEPTION) {
coleenp@4466 1544 CLEAR_PENDING_EXCEPTION;
coleenp@4466 1545 h_throwable = Handle();
coleenp@4466 1546 } else {
coleenp@4466 1547 h_throwable = Handle(THREAD, (oop) cause.get_jobject());
coleenp@4466 1548 if (h_throwable.not_null()) {
coleenp@4466 1549 st->print("Caused by: ");
coleenp@4466 1550 print(h_throwable, st);
coleenp@4466 1551 st->cr();
coleenp@4466 1552 }
coleenp@4466 1553 }
coleenp@4466 1554 }
coleenp@4466 1555 }
coleenp@4466 1556 }
duke@435 1557
coleenp@2804 1558 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method, TRAPS) {
duke@435 1559 if (!StackTraceInThrowable) return;
duke@435 1560 ResourceMark rm(THREAD);
duke@435 1561
duke@435 1562 // Start out by clearing the backtrace for this object, in case the VM
duke@435 1563 // runs out of memory while allocating the stack trace
duke@435 1564 set_backtrace(throwable(), NULL);
duke@435 1565 if (JDK_Version::is_gte_jdk14x_version()) {
duke@435 1566 // New since 1.4, clear lazily constructed Java level stacktrace if
duke@435 1567 // refilling occurs
dholmes@3018 1568 // This is unnecessary in 1.7+ but harmless
duke@435 1569 clear_stacktrace(throwable());
duke@435 1570 }
duke@435 1571
duke@435 1572 int max_depth = MaxJavaStackTraceDepth;
duke@435 1573 JavaThread* thread = (JavaThread*)THREAD;
duke@435 1574 BacktraceBuilder bt(CHECK);
duke@435 1575
coleenp@2804 1576 // If there is no Java frame just return the method that was being called
coleenp@2804 1577 // with bci 0
coleenp@2804 1578 if (!thread->has_last_Java_frame()) {
coleenp@2804 1579 if (max_depth >= 1 && method() != NULL) {
coleenp@2804 1580 bt.push(method(), 0, CHECK);
coleenp@2804 1581 set_backtrace(throwable(), bt.backtrace());
coleenp@2804 1582 }
coleenp@2804 1583 return;
coleenp@2804 1584 }
coleenp@2804 1585
duke@435 1586 // Instead of using vframe directly, this version of fill_in_stack_trace
duke@435 1587 // basically handles everything by hand. This significantly improved the
duke@435 1588 // speed of this method call up to 28.5% on Solaris sparc. 27.1% on Windows.
duke@435 1589 // See bug 6333838 for more details.
duke@435 1590 // The "ASSERT" here is to verify this method generates the exactly same stack
duke@435 1591 // trace as utilizing vframe.
duke@435 1592 #ifdef ASSERT
duke@435 1593 vframeStream st(thread);
duke@435 1594 methodHandle st_method(THREAD, st.method());
duke@435 1595 #endif
duke@435 1596 int total_count = 0;
duke@435 1597 RegisterMap map(thread, false);
duke@435 1598 int decode_offset = 0;
duke@435 1599 nmethod* nm = NULL;
duke@435 1600 bool skip_fillInStackTrace_check = false;
duke@435 1601 bool skip_throwableInit_check = false;
twisti@3970 1602 bool skip_hidden = !ShowHiddenFrames;
duke@435 1603
duke@435 1604 for (frame fr = thread->last_frame(); max_depth != total_count;) {
coleenp@4037 1605 Method* method = NULL;
duke@435 1606 int bci = 0;
duke@435 1607
duke@435 1608 // Compiled java method case.
duke@435 1609 if (decode_offset != 0) {
duke@435 1610 DebugInfoReadStream stream(nm, decode_offset);
duke@435 1611 decode_offset = stream.read_int();
coleenp@4037 1612 method = (Method*)nm->metadata_at(stream.read_int());
cfang@1366 1613 bci = stream.read_bci();
duke@435 1614 } else {
duke@435 1615 if (fr.is_first_frame()) break;
duke@435 1616 address pc = fr.pc();
duke@435 1617 if (fr.is_interpreted_frame()) {
duke@435 1618 intptr_t bcx = fr.interpreter_frame_bcx();
duke@435 1619 method = fr.interpreter_frame_method();
duke@435 1620 bci = fr.is_bci(bcx) ? bcx : method->bci_from((address)bcx);
duke@435 1621 fr = fr.sender(&map);
duke@435 1622 } else {
duke@435 1623 CodeBlob* cb = fr.cb();
duke@435 1624 // HMMM QQQ might be nice to have frame return nm as NULL if cb is non-NULL
duke@435 1625 // but non nmethod
duke@435 1626 fr = fr.sender(&map);
duke@435 1627 if (cb == NULL || !cb->is_nmethod()) {
duke@435 1628 continue;
duke@435 1629 }
duke@435 1630 nm = (nmethod*)cb;
duke@435 1631 if (nm->method()->is_native()) {
duke@435 1632 method = nm->method();
duke@435 1633 bci = 0;
duke@435 1634 } else {
duke@435 1635 PcDesc* pd = nm->pc_desc_at(pc);
duke@435 1636 decode_offset = pd->scope_decode_offset();
duke@435 1637 // if decode_offset is not equal to 0, it will execute the
duke@435 1638 // "compiled java method case" at the beginning of the loop.
duke@435 1639 continue;
duke@435 1640 }
duke@435 1641 }
duke@435 1642 }
duke@435 1643 #ifdef ASSERT
dholmes@2758 1644 assert(st_method() == method && st.bci() == bci,
dholmes@2758 1645 "Wrong stack trace");
dholmes@2758 1646 st.next();
dholmes@2758 1647 // vframeStream::method isn't GC-safe so store off a copy
coleenp@4037 1648 // of the Method* in case we GC.
dholmes@2758 1649 if (!st.at_end()) {
dholmes@2758 1650 st_method = st.method();
dholmes@2758 1651 }
duke@435 1652 #endif
dholmes@2758 1653
dholmes@2758 1654 // the format of the stacktrace will be:
dholmes@2758 1655 // - 1 or more fillInStackTrace frames for the exception class (skipped)
dholmes@2758 1656 // - 0 or more <init> methods for the exception class (skipped)
dholmes@2758 1657 // - rest of the stack
dholmes@2758 1658
duke@435 1659 if (!skip_fillInStackTrace_check) {
dholmes@2758 1660 if ((method->name() == vmSymbols::fillInStackTrace_name() ||
dholmes@2758 1661 method->name() == vmSymbols::fillInStackTrace0_name()) &&
dholmes@2758 1662 throwable->is_a(method->method_holder())) {
duke@435 1663 continue;
duke@435 1664 }
dholmes@2758 1665 else {
dholmes@2758 1666 skip_fillInStackTrace_check = true; // gone past them all
dholmes@2758 1667 }
duke@435 1668 }
duke@435 1669 if (!skip_throwableInit_check) {
dholmes@2758 1670 assert(skip_fillInStackTrace_check, "logic error in backtrace filtering");
dholmes@2758 1671
dholmes@2758 1672 // skip <init> methods of the exception class and superclasses
dholmes@2758 1673 // This is simlar to classic VM.
duke@435 1674 if (method->name() == vmSymbols::object_initializer_name() &&
duke@435 1675 throwable->is_a(method->method_holder())) {
duke@435 1676 continue;
duke@435 1677 } else {
dholmes@2758 1678 // there are none or we've seen them all - either way stop checking
duke@435 1679 skip_throwableInit_check = true;
duke@435 1680 }
duke@435 1681 }
twisti@3969 1682 if (method->is_hidden()) {
twisti@3969 1683 if (skip_hidden) continue;
twisti@3969 1684 }
duke@435 1685 bt.push(method, bci, CHECK);
duke@435 1686 total_count++;
duke@435 1687 }
duke@435 1688
duke@435 1689 // Put completed stack trace into throwable object
duke@435 1690 set_backtrace(throwable(), bt.backtrace());
duke@435 1691 }
duke@435 1692
coleenp@2804 1693 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method) {
duke@435 1694 // No-op if stack trace is disabled
duke@435 1695 if (!StackTraceInThrowable) {
duke@435 1696 return;
duke@435 1697 }
duke@435 1698
duke@435 1699 // Disable stack traces for some preallocated out of memory errors
duke@435 1700 if (!Universe::should_fill_in_stack_trace(throwable)) {
duke@435 1701 return;
duke@435 1702 }
duke@435 1703
duke@435 1704 PRESERVE_EXCEPTION_MARK;
duke@435 1705
duke@435 1706 JavaThread* thread = JavaThread::active();
coleenp@2804 1707 fill_in_stack_trace(throwable, method, thread);
duke@435 1708 // ignore exceptions thrown during stack trace filling
duke@435 1709 CLEAR_PENDING_EXCEPTION;
duke@435 1710 }
duke@435 1711
duke@435 1712 void java_lang_Throwable::allocate_backtrace(Handle throwable, TRAPS) {
duke@435 1713 // Allocate stack trace - backtrace is created but not filled in
duke@435 1714
duke@435 1715 // No-op if stack trace is disabled
duke@435 1716 if (!StackTraceInThrowable) return;
coleenp@4466 1717 BacktraceBuilder bt(CHECK); // creates a backtrace
coleenp@4466 1718 set_backtrace(throwable(), bt.backtrace());
duke@435 1719 }
duke@435 1720
duke@435 1721
duke@435 1722 void java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(Handle throwable) {
duke@435 1723 // Fill in stack trace into preallocated backtrace (no GC)
duke@435 1724
duke@435 1725 // No-op if stack trace is disabled
duke@435 1726 if (!StackTraceInThrowable) return;
duke@435 1727
never@1577 1728 assert(throwable->is_a(SystemDictionary::Throwable_klass()), "sanity check");
duke@435 1729
coleenp@4466 1730 JavaThread* THREAD = JavaThread::current();
coleenp@4466 1731
coleenp@4466 1732 objArrayHandle backtrace (THREAD, (objArrayOop)java_lang_Throwable::backtrace(throwable()));
coleenp@4466 1733 assert(backtrace.not_null(), "backtrace should have been preallocated");
coleenp@4466 1734
coleenp@4466 1735 ResourceMark rm(THREAD);
coleenp@4466 1736 vframeStream st(THREAD);
coleenp@4466 1737
coleenp@4466 1738 BacktraceBuilder bt(backtrace);
duke@435 1739
duke@435 1740 // Unlike fill_in_stack_trace we do not skip fillInStackTrace or throwable init
duke@435 1741 // methods as preallocated errors aren't created by "java" code.
duke@435 1742
duke@435 1743 // fill in as much stack trace as possible
coleenp@4466 1744 typeArrayOop methods = BacktraceBuilder::get_methods(backtrace);
duke@435 1745 int max_chunks = MIN2(methods->length(), (int)MaxJavaStackTraceDepth);
duke@435 1746 int chunk_count = 0;
duke@435 1747
duke@435 1748 for (;!st.at_end(); st.next()) {
coleenp@4466 1749 bt.push(st.method(), st.bci(), CHECK);
duke@435 1750 chunk_count++;
duke@435 1751
duke@435 1752 // Bail-out for deep stacks
duke@435 1753 if (chunk_count >= max_chunks) break;
duke@435 1754 }
dholmes@3018 1755
dholmes@3018 1756 // For Java 7+ we support the Throwable immutability protocol defined for Java 7. This support
dholmes@3018 1757 // was missing in 7u0 so in 7u0 there is a workaround in the Throwable class. That workaround
dholmes@3018 1758 // can be removed in a JDK using this JVM version
dholmes@3018 1759 if (JDK_Version::is_gte_jdk17x_version()) {
dholmes@3018 1760 java_lang_Throwable::set_stacktrace(throwable(), java_lang_Throwable::unassigned_stacktrace());
dholmes@3018 1761 assert(java_lang_Throwable::unassigned_stacktrace() != NULL, "not initialized");
dholmes@3018 1762 }
duke@435 1763 }
duke@435 1764
duke@435 1765
duke@435 1766 int java_lang_Throwable::get_stack_trace_depth(oop throwable, TRAPS) {
duke@435 1767 if (throwable == NULL) {
duke@435 1768 THROW_0(vmSymbols::java_lang_NullPointerException());
duke@435 1769 }
duke@435 1770 objArrayOop chunk = objArrayOop(backtrace(throwable));
duke@435 1771 int depth = 0;
duke@435 1772 if (chunk != NULL) {
duke@435 1773 // Iterate over chunks and count full ones
duke@435 1774 while (true) {
duke@435 1775 objArrayOop next = objArrayOop(chunk->obj_at(trace_next_offset));
duke@435 1776 if (next == NULL) break;
duke@435 1777 depth += trace_chunk_size;
duke@435 1778 chunk = next;
duke@435 1779 }
duke@435 1780 assert(chunk != NULL && chunk->obj_at(trace_next_offset) == NULL, "sanity check");
coleenp@4466 1781 // Count element in remaining partial chunk. NULL value for mirror
coleenp@4466 1782 // marks the end of the stack trace elements that are saved.
coleenp@4466 1783 objArrayOop mirrors = BacktraceBuilder::get_mirrors(chunk);
coleenp@4466 1784 assert(mirrors != NULL, "sanity check");
coleenp@4466 1785 for (int i = 0; i < mirrors->length(); i++) {
coleenp@4466 1786 if (mirrors->obj_at(i) == NULL) break;
duke@435 1787 depth++;
duke@435 1788 }
duke@435 1789 }
duke@435 1790 return depth;
duke@435 1791 }
duke@435 1792
duke@435 1793
duke@435 1794 oop java_lang_Throwable::get_stack_trace_element(oop throwable, int index, TRAPS) {
duke@435 1795 if (throwable == NULL) {
duke@435 1796 THROW_0(vmSymbols::java_lang_NullPointerException());
duke@435 1797 }
duke@435 1798 if (index < 0) {
duke@435 1799 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL);
duke@435 1800 }
duke@435 1801 // Compute how many chunks to skip and index into actual chunk
duke@435 1802 objArrayOop chunk = objArrayOop(backtrace(throwable));
duke@435 1803 int skip_chunks = index / trace_chunk_size;
duke@435 1804 int chunk_index = index % trace_chunk_size;
duke@435 1805 while (chunk != NULL && skip_chunks > 0) {
duke@435 1806 chunk = objArrayOop(chunk->obj_at(trace_next_offset));
duke@435 1807 skip_chunks--;
duke@435 1808 }
duke@435 1809 if (chunk == NULL) {
duke@435 1810 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL);
duke@435 1811 }
coleenp@4466 1812 // Get method id, bci, version and mirror from chunk
coleenp@4466 1813 typeArrayOop methods = BacktraceBuilder::get_methods(chunk);
coleenp@4466 1814 typeArrayOop bcis = BacktraceBuilder::get_bcis(chunk);
coleenp@4466 1815 objArrayOop mirrors = BacktraceBuilder::get_mirrors(chunk);
coleenp@4466 1816
coleenp@4466 1817 assert(methods != NULL && bcis != NULL && mirrors != NULL, "sanity check");
coleenp@4466 1818
coleenp@4466 1819 int method = methods->short_at(chunk_index);
coleenp@4466 1820 int version = version_at(bcis->int_at(chunk_index));
coleenp@4466 1821 int bci = bci_at(bcis->int_at(chunk_index));
coleenp@4466 1822 Handle mirror(THREAD, mirrors->obj_at(chunk_index));
coleenp@4466 1823
duke@435 1824 // Chunk can be partial full
coleenp@4466 1825 if (mirror.is_null()) {
duke@435 1826 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL);
duke@435 1827 }
duke@435 1828
coleenp@4466 1829 oop element = java_lang_StackTraceElement::create(mirror, method, version, bci, CHECK_0);
duke@435 1830 return element;
duke@435 1831 }
duke@435 1832
coleenp@5835 1833 oop java_lang_StackTraceElement::create(Handle mirror, int method_id,
coleenp@5835 1834 int version, int bci, TRAPS) {
duke@435 1835 // Allocate java.lang.StackTraceElement instance
coleenp@4037 1836 Klass* k = SystemDictionary::StackTraceElement_klass();
jrose@567 1837 assert(k != NULL, "must be loaded in 1.4+");
duke@435 1838 instanceKlassHandle ik (THREAD, k);
duke@435 1839 if (ik->should_be_initialized()) {
duke@435 1840 ik->initialize(CHECK_0);
duke@435 1841 }
duke@435 1842
duke@435 1843 Handle element = ik->allocate_instance_handle(CHECK_0);
duke@435 1844 // Fill in class name
duke@435 1845 ResourceMark rm(THREAD);
coleenp@4466 1846 InstanceKlass* holder = InstanceKlass::cast(java_lang_Class::as_Klass(mirror()));
coleenp@4466 1847 const char* str = holder->external_name();
duke@435 1848 oop classname = StringTable::intern((char*) str, CHECK_0);
duke@435 1849 java_lang_StackTraceElement::set_declaringClass(element(), classname);
coleenp@4466 1850
coleenp@5835 1851 Method* method = holder->method_with_idnum(method_id);
coleenp@5835 1852 // Method on stack may be obsolete because it was redefined so cannot be
coleenp@5835 1853 // found by idnum.
coleenp@5835 1854 if (method == NULL) {
coleenp@5835 1855 // leave name and fileName null
coleenp@5835 1856 java_lang_StackTraceElement::set_lineNumber(element(), -1);
coleenp@5835 1857 return element();
coleenp@5835 1858 }
coleenp@5835 1859
duke@435 1860 // Fill in method name
duke@435 1861 oop methodname = StringTable::intern(method->name(), CHECK_0);
duke@435 1862 java_lang_StackTraceElement::set_methodName(element(), methodname);
coleenp@4466 1863
coleenp@4466 1864 if (!version_matches(method, version)) {
coleenp@4466 1865 // The method was redefined, accurate line number information isn't available
coleenp@4466 1866 java_lang_StackTraceElement::set_fileName(element(), NULL);
coleenp@4466 1867 java_lang_StackTraceElement::set_lineNumber(element(), -1);
duke@435 1868 } else {
coleenp@4466 1869 // Fill in source file name and line number.
coleenp@4466 1870 Symbol* source = holder->source_file_name();
coleenp@4466 1871 if (ShowHiddenFrames && source == NULL)
coleenp@4466 1872 source = vmSymbols::unknown_class_name();
coleenp@4466 1873 oop filename = StringTable::intern(source, CHECK_0);
coleenp@4466 1874 java_lang_StackTraceElement::set_fileName(element(), filename);
coleenp@4466 1875
coleenp@4466 1876 int line_number = get_line_number(method, bci);
coleenp@4466 1877 java_lang_StackTraceElement::set_lineNumber(element(), line_number);
duke@435 1878 }
duke@435 1879 return element();
duke@435 1880 }
duke@435 1881
coleenp@4466 1882 oop java_lang_StackTraceElement::create(methodHandle method, int bci, TRAPS) {
coleenp@4466 1883 Handle mirror (THREAD, method->method_holder()->java_mirror());
coleenp@4466 1884 int method_id = method->method_idnum();
coleenp@4466 1885 return create(mirror, method_id, method->constants()->version(), bci, THREAD);
coleenp@4466 1886 }
duke@435 1887
duke@435 1888 void java_lang_reflect_AccessibleObject::compute_offsets() {
coleenp@4037 1889 Klass* k = SystemDictionary::reflect_AccessibleObject_klass();
jrose@567 1890 compute_offset(override_offset, k, vmSymbols::override_name(), vmSymbols::bool_signature());
duke@435 1891 }
duke@435 1892
duke@435 1893 jboolean java_lang_reflect_AccessibleObject::override(oop reflect) {
duke@435 1894 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 1895 return (jboolean) reflect->bool_field(override_offset);
duke@435 1896 }
duke@435 1897
duke@435 1898 void java_lang_reflect_AccessibleObject::set_override(oop reflect, jboolean value) {
duke@435 1899 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 1900 reflect->bool_field_put(override_offset, (int) value);
duke@435 1901 }
duke@435 1902
duke@435 1903 void java_lang_reflect_Method::compute_offsets() {
coleenp@4037 1904 Klass* k = SystemDictionary::reflect_Method_klass();
jrose@567 1905 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature());
jrose@567 1906 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature());
jrose@567 1907 compute_offset(returnType_offset, k, vmSymbols::returnType_name(), vmSymbols::class_signature());
jrose@567 1908 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature());
jrose@567 1909 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature());
jrose@567 1910 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature());
jrose@567 1911 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature());
duke@435 1912 // The generic signature and annotations fields are only present in 1.5
duke@435 1913 signature_offset = -1;
duke@435 1914 annotations_offset = -1;
duke@435 1915 parameter_annotations_offset = -1;
duke@435 1916 annotation_default_offset = -1;
stefank@4393 1917 type_annotations_offset = -1;
jrose@567 1918 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature());
jrose@567 1919 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature());
jrose@567 1920 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature());
jrose@567 1921 compute_optional_offset(annotation_default_offset, k, vmSymbols::annotation_default_name(), vmSymbols::byte_array_signature());
stefank@4393 1922 compute_optional_offset(type_annotations_offset, k, vmSymbols::type_annotations_name(), vmSymbols::byte_array_signature());
duke@435 1923 }
duke@435 1924
duke@435 1925 Handle java_lang_reflect_Method::create(TRAPS) {
duke@435 1926 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
coleenp@4037 1927 Klass* klass = SystemDictionary::reflect_Method_klass();
duke@435 1928 // This class is eagerly initialized during VM initialization, since we keep a refence
duke@435 1929 // to one of the methods
coleenp@4037 1930 assert(InstanceKlass::cast(klass)->is_initialized(), "must be initialized");
coleenp@4037 1931 return InstanceKlass::cast(klass)->allocate_instance_handle(CHECK_NH);
duke@435 1932 }
duke@435 1933
duke@435 1934 oop java_lang_reflect_Method::clazz(oop reflect) {
duke@435 1935 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 1936 return reflect->obj_field(clazz_offset);
duke@435 1937 }
duke@435 1938
duke@435 1939 void java_lang_reflect_Method::set_clazz(oop reflect, oop value) {
duke@435 1940 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 1941 reflect->obj_field_put(clazz_offset, value);
duke@435 1942 }
duke@435 1943
duke@435 1944 int java_lang_reflect_Method::slot(oop reflect) {
duke@435 1945 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 1946 return reflect->int_field(slot_offset);
duke@435 1947 }
duke@435 1948
duke@435 1949 void java_lang_reflect_Method::set_slot(oop reflect, int value) {
duke@435 1950 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 1951 reflect->int_field_put(slot_offset, value);
duke@435 1952 }
duke@435 1953
duke@435 1954 oop java_lang_reflect_Method::name(oop method) {
duke@435 1955 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 1956 return method->obj_field(name_offset);
duke@435 1957 }
duke@435 1958
duke@435 1959 void java_lang_reflect_Method::set_name(oop method, oop value) {
duke@435 1960 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 1961 method->obj_field_put(name_offset, value);
duke@435 1962 }
duke@435 1963
duke@435 1964 oop java_lang_reflect_Method::return_type(oop method) {
duke@435 1965 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 1966 return method->obj_field(returnType_offset);
duke@435 1967 }
duke@435 1968
duke@435 1969 void java_lang_reflect_Method::set_return_type(oop method, oop value) {
duke@435 1970 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 1971 method->obj_field_put(returnType_offset, value);
duke@435 1972 }
duke@435 1973
duke@435 1974 oop java_lang_reflect_Method::parameter_types(oop method) {
duke@435 1975 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 1976 return method->obj_field(parameterTypes_offset);
duke@435 1977 }
duke@435 1978
duke@435 1979 void java_lang_reflect_Method::set_parameter_types(oop method, oop value) {
duke@435 1980 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 1981 method->obj_field_put(parameterTypes_offset, value);
duke@435 1982 }
duke@435 1983
duke@435 1984 oop java_lang_reflect_Method::exception_types(oop method) {
duke@435 1985 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 1986 return method->obj_field(exceptionTypes_offset);
duke@435 1987 }
duke@435 1988
duke@435 1989 void java_lang_reflect_Method::set_exception_types(oop method, oop value) {
duke@435 1990 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 1991 method->obj_field_put(exceptionTypes_offset, value);
duke@435 1992 }
duke@435 1993
duke@435 1994 int java_lang_reflect_Method::modifiers(oop method) {
duke@435 1995 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 1996 return method->int_field(modifiers_offset);
duke@435 1997 }
duke@435 1998
duke@435 1999 void java_lang_reflect_Method::set_modifiers(oop method, int value) {
duke@435 2000 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2001 method->int_field_put(modifiers_offset, value);
duke@435 2002 }
duke@435 2003
duke@435 2004 bool java_lang_reflect_Method::has_signature_field() {
duke@435 2005 return (signature_offset >= 0);
duke@435 2006 }
duke@435 2007
duke@435 2008 oop java_lang_reflect_Method::signature(oop method) {
duke@435 2009 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2010 assert(has_signature_field(), "signature field must be present");
duke@435 2011 return method->obj_field(signature_offset);
duke@435 2012 }
duke@435 2013
duke@435 2014 void java_lang_reflect_Method::set_signature(oop method, oop value) {
duke@435 2015 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2016 assert(has_signature_field(), "signature field must be present");
duke@435 2017 method->obj_field_put(signature_offset, value);
duke@435 2018 }
duke@435 2019
duke@435 2020 bool java_lang_reflect_Method::has_annotations_field() {
duke@435 2021 return (annotations_offset >= 0);
duke@435 2022 }
duke@435 2023
duke@435 2024 oop java_lang_reflect_Method::annotations(oop method) {
duke@435 2025 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2026 assert(has_annotations_field(), "annotations field must be present");
duke@435 2027 return method->obj_field(annotations_offset);
duke@435 2028 }
duke@435 2029
duke@435 2030 void java_lang_reflect_Method::set_annotations(oop method, oop value) {
duke@435 2031 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2032 assert(has_annotations_field(), "annotations field must be present");
duke@435 2033 method->obj_field_put(annotations_offset, value);
duke@435 2034 }
duke@435 2035
duke@435 2036 bool java_lang_reflect_Method::has_parameter_annotations_field() {
duke@435 2037 return (parameter_annotations_offset >= 0);
duke@435 2038 }
duke@435 2039
duke@435 2040 oop java_lang_reflect_Method::parameter_annotations(oop method) {
duke@435 2041 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2042 assert(has_parameter_annotations_field(), "parameter annotations field must be present");
duke@435 2043 return method->obj_field(parameter_annotations_offset);
duke@435 2044 }
duke@435 2045
duke@435 2046 void java_lang_reflect_Method::set_parameter_annotations(oop method, oop value) {
duke@435 2047 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2048 assert(has_parameter_annotations_field(), "parameter annotations field must be present");
duke@435 2049 method->obj_field_put(parameter_annotations_offset, value);
duke@435 2050 }
duke@435 2051
duke@435 2052 bool java_lang_reflect_Method::has_annotation_default_field() {
duke@435 2053 return (annotation_default_offset >= 0);
duke@435 2054 }
duke@435 2055
duke@435 2056 oop java_lang_reflect_Method::annotation_default(oop method) {
duke@435 2057 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2058 assert(has_annotation_default_field(), "annotation default field must be present");
duke@435 2059 return method->obj_field(annotation_default_offset);
duke@435 2060 }
duke@435 2061
duke@435 2062 void java_lang_reflect_Method::set_annotation_default(oop method, oop value) {
duke@435 2063 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2064 assert(has_annotation_default_field(), "annotation default field must be present");
duke@435 2065 method->obj_field_put(annotation_default_offset, value);
duke@435 2066 }
duke@435 2067
stefank@4393 2068 bool java_lang_reflect_Method::has_type_annotations_field() {
stefank@4393 2069 return (type_annotations_offset >= 0);
stefank@4393 2070 }
stefank@4393 2071
stefank@4393 2072 oop java_lang_reflect_Method::type_annotations(oop method) {
stefank@4393 2073 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
stefank@4393 2074 assert(has_type_annotations_field(), "type_annotations field must be present");
stefank@4393 2075 return method->obj_field(type_annotations_offset);
stefank@4393 2076 }
stefank@4393 2077
stefank@4393 2078 void java_lang_reflect_Method::set_type_annotations(oop method, oop value) {
stefank@4393 2079 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
stefank@4393 2080 assert(has_type_annotations_field(), "type_annotations field must be present");
stefank@4393 2081 method->obj_field_put(type_annotations_offset, value);
stefank@4393 2082 }
stefank@4393 2083
duke@435 2084 void java_lang_reflect_Constructor::compute_offsets() {
coleenp@4037 2085 Klass* k = SystemDictionary::reflect_Constructor_klass();
jrose@567 2086 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature());
jrose@567 2087 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature());
jrose@567 2088 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature());
jrose@567 2089 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature());
jrose@567 2090 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature());
duke@435 2091 // The generic signature and annotations fields are only present in 1.5
duke@435 2092 signature_offset = -1;
duke@435 2093 annotations_offset = -1;
duke@435 2094 parameter_annotations_offset = -1;
stefank@4393 2095 type_annotations_offset = -1;
jrose@567 2096 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature());
jrose@567 2097 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature());
jrose@567 2098 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature());
stefank@4393 2099 compute_optional_offset(type_annotations_offset, k, vmSymbols::type_annotations_name(), vmSymbols::byte_array_signature());
duke@435 2100 }
duke@435 2101
duke@435 2102 Handle java_lang_reflect_Constructor::create(TRAPS) {
duke@435 2103 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
coleenp@2497 2104 Symbol* name = vmSymbols::java_lang_reflect_Constructor();
coleenp@4037 2105 Klass* k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH);
duke@435 2106 instanceKlassHandle klass (THREAD, k);
duke@435 2107 // Ensure it is initialized
duke@435 2108 klass->initialize(CHECK_NH);
duke@435 2109 return klass->allocate_instance_handle(CHECK_NH);
duke@435 2110 }
duke@435 2111
duke@435 2112 oop java_lang_reflect_Constructor::clazz(oop reflect) {
duke@435 2113 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2114 return reflect->obj_field(clazz_offset);
duke@435 2115 }
duke@435 2116
duke@435 2117 void java_lang_reflect_Constructor::set_clazz(oop reflect, oop value) {
duke@435 2118 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2119 reflect->obj_field_put(clazz_offset, value);
duke@435 2120 }
duke@435 2121
duke@435 2122 oop java_lang_reflect_Constructor::parameter_types(oop constructor) {
duke@435 2123 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2124 return constructor->obj_field(parameterTypes_offset);
duke@435 2125 }
duke@435 2126
duke@435 2127 void java_lang_reflect_Constructor::set_parameter_types(oop constructor, oop value) {
duke@435 2128 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2129 constructor->obj_field_put(parameterTypes_offset, value);
duke@435 2130 }
duke@435 2131
duke@435 2132 oop java_lang_reflect_Constructor::exception_types(oop constructor) {
duke@435 2133 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2134 return constructor->obj_field(exceptionTypes_offset);
duke@435 2135 }
duke@435 2136
duke@435 2137 void java_lang_reflect_Constructor::set_exception_types(oop constructor, oop value) {
duke@435 2138 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2139 constructor->obj_field_put(exceptionTypes_offset, value);
duke@435 2140 }
duke@435 2141
duke@435 2142 int java_lang_reflect_Constructor::slot(oop reflect) {
duke@435 2143 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2144 return reflect->int_field(slot_offset);
duke@435 2145 }
duke@435 2146
duke@435 2147 void java_lang_reflect_Constructor::set_slot(oop reflect, int value) {
duke@435 2148 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2149 reflect->int_field_put(slot_offset, value);
duke@435 2150 }
duke@435 2151
duke@435 2152 int java_lang_reflect_Constructor::modifiers(oop constructor) {
duke@435 2153 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2154 return constructor->int_field(modifiers_offset);
duke@435 2155 }
duke@435 2156
duke@435 2157 void java_lang_reflect_Constructor::set_modifiers(oop constructor, int value) {
duke@435 2158 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2159 constructor->int_field_put(modifiers_offset, value);
duke@435 2160 }
duke@435 2161
duke@435 2162 bool java_lang_reflect_Constructor::has_signature_field() {
duke@435 2163 return (signature_offset >= 0);
duke@435 2164 }
duke@435 2165
duke@435 2166 oop java_lang_reflect_Constructor::signature(oop constructor) {
duke@435 2167 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2168 assert(has_signature_field(), "signature field must be present");
duke@435 2169 return constructor->obj_field(signature_offset);
duke@435 2170 }
duke@435 2171
duke@435 2172 void java_lang_reflect_Constructor::set_signature(oop constructor, oop value) {
duke@435 2173 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2174 assert(has_signature_field(), "signature field must be present");
duke@435 2175 constructor->obj_field_put(signature_offset, value);
duke@435 2176 }
duke@435 2177
duke@435 2178 bool java_lang_reflect_Constructor::has_annotations_field() {
duke@435 2179 return (annotations_offset >= 0);
duke@435 2180 }
duke@435 2181
duke@435 2182 oop java_lang_reflect_Constructor::annotations(oop constructor) {
duke@435 2183 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2184 assert(has_annotations_field(), "annotations field must be present");
duke@435 2185 return constructor->obj_field(annotations_offset);
duke@435 2186 }
duke@435 2187
duke@435 2188 void java_lang_reflect_Constructor::set_annotations(oop constructor, oop value) {
duke@435 2189 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2190 assert(has_annotations_field(), "annotations field must be present");
duke@435 2191 constructor->obj_field_put(annotations_offset, value);
duke@435 2192 }
duke@435 2193
duke@435 2194 bool java_lang_reflect_Constructor::has_parameter_annotations_field() {
duke@435 2195 return (parameter_annotations_offset >= 0);
duke@435 2196 }
duke@435 2197
duke@435 2198 oop java_lang_reflect_Constructor::parameter_annotations(oop method) {
duke@435 2199 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2200 assert(has_parameter_annotations_field(), "parameter annotations field must be present");
duke@435 2201 return method->obj_field(parameter_annotations_offset);
duke@435 2202 }
duke@435 2203
duke@435 2204 void java_lang_reflect_Constructor::set_parameter_annotations(oop method, oop value) {
duke@435 2205 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2206 assert(has_parameter_annotations_field(), "parameter annotations field must be present");
duke@435 2207 method->obj_field_put(parameter_annotations_offset, value);
duke@435 2208 }
duke@435 2209
stefank@4393 2210 bool java_lang_reflect_Constructor::has_type_annotations_field() {
stefank@4393 2211 return (type_annotations_offset >= 0);
stefank@4393 2212 }
stefank@4393 2213
stefank@4393 2214 oop java_lang_reflect_Constructor::type_annotations(oop constructor) {
stefank@4393 2215 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
stefank@4393 2216 assert(has_type_annotations_field(), "type_annotations field must be present");
stefank@4393 2217 return constructor->obj_field(type_annotations_offset);
stefank@4393 2218 }
stefank@4393 2219
stefank@4393 2220 void java_lang_reflect_Constructor::set_type_annotations(oop constructor, oop value) {
stefank@4393 2221 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
stefank@4393 2222 assert(has_type_annotations_field(), "type_annotations field must be present");
stefank@4393 2223 constructor->obj_field_put(type_annotations_offset, value);
stefank@4393 2224 }
stefank@4393 2225
duke@435 2226 void java_lang_reflect_Field::compute_offsets() {
coleenp@4037 2227 Klass* k = SystemDictionary::reflect_Field_klass();
jrose@567 2228 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature());
jrose@567 2229 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature());
jrose@567 2230 compute_offset(type_offset, k, vmSymbols::type_name(), vmSymbols::class_signature());
jrose@567 2231 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature());
jrose@567 2232 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature());
duke@435 2233 // The generic signature and annotations fields are only present in 1.5
duke@435 2234 signature_offset = -1;
duke@435 2235 annotations_offset = -1;
stefank@4393 2236 type_annotations_offset = -1;
jrose@567 2237 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature());
jrose@567 2238 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature());
stefank@4393 2239 compute_optional_offset(type_annotations_offset, k, vmSymbols::type_annotations_name(), vmSymbols::byte_array_signature());
duke@435 2240 }
duke@435 2241
duke@435 2242 Handle java_lang_reflect_Field::create(TRAPS) {
duke@435 2243 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
coleenp@2497 2244 Symbol* name = vmSymbols::java_lang_reflect_Field();
coleenp@4037 2245 Klass* k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH);
duke@435 2246 instanceKlassHandle klass (THREAD, k);
duke@435 2247 // Ensure it is initialized
duke@435 2248 klass->initialize(CHECK_NH);
duke@435 2249 return klass->allocate_instance_handle(CHECK_NH);
duke@435 2250 }
duke@435 2251
duke@435 2252 oop java_lang_reflect_Field::clazz(oop reflect) {
duke@435 2253 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2254 return reflect->obj_field(clazz_offset);
duke@435 2255 }
duke@435 2256
duke@435 2257 void java_lang_reflect_Field::set_clazz(oop reflect, oop value) {
duke@435 2258 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2259 reflect->obj_field_put(clazz_offset, value);
duke@435 2260 }
duke@435 2261
duke@435 2262 oop java_lang_reflect_Field::name(oop field) {
duke@435 2263 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2264 return field->obj_field(name_offset);
duke@435 2265 }
duke@435 2266
duke@435 2267 void java_lang_reflect_Field::set_name(oop field, oop value) {
duke@435 2268 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2269 field->obj_field_put(name_offset, value);
duke@435 2270 }
duke@435 2271
duke@435 2272 oop java_lang_reflect_Field::type(oop field) {
duke@435 2273 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2274 return field->obj_field(type_offset);
duke@435 2275 }
duke@435 2276
duke@435 2277 void java_lang_reflect_Field::set_type(oop field, oop value) {
duke@435 2278 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2279 field->obj_field_put(type_offset, value);
duke@435 2280 }
duke@435 2281
duke@435 2282 int java_lang_reflect_Field::slot(oop reflect) {
duke@435 2283 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2284 return reflect->int_field(slot_offset);
duke@435 2285 }
duke@435 2286
duke@435 2287 void java_lang_reflect_Field::set_slot(oop reflect, int value) {
duke@435 2288 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2289 reflect->int_field_put(slot_offset, value);
duke@435 2290 }
duke@435 2291
duke@435 2292 int java_lang_reflect_Field::modifiers(oop field) {
duke@435 2293 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2294 return field->int_field(modifiers_offset);
duke@435 2295 }
duke@435 2296
duke@435 2297 void java_lang_reflect_Field::set_modifiers(oop field, int value) {
duke@435 2298 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2299 field->int_field_put(modifiers_offset, value);
duke@435 2300 }
duke@435 2301
duke@435 2302 bool java_lang_reflect_Field::has_signature_field() {
duke@435 2303 return (signature_offset >= 0);
duke@435 2304 }
duke@435 2305
duke@435 2306 oop java_lang_reflect_Field::signature(oop field) {
duke@435 2307 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2308 assert(has_signature_field(), "signature field must be present");
duke@435 2309 return field->obj_field(signature_offset);
duke@435 2310 }
duke@435 2311
duke@435 2312 void java_lang_reflect_Field::set_signature(oop field, oop value) {
duke@435 2313 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2314 assert(has_signature_field(), "signature field must be present");
duke@435 2315 field->obj_field_put(signature_offset, value);
duke@435 2316 }
duke@435 2317
duke@435 2318 bool java_lang_reflect_Field::has_annotations_field() {
duke@435 2319 return (annotations_offset >= 0);
duke@435 2320 }
duke@435 2321
duke@435 2322 oop java_lang_reflect_Field::annotations(oop field) {
duke@435 2323 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2324 assert(has_annotations_field(), "annotations field must be present");
duke@435 2325 return field->obj_field(annotations_offset);
duke@435 2326 }
duke@435 2327
duke@435 2328 void java_lang_reflect_Field::set_annotations(oop field, oop value) {
duke@435 2329 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
duke@435 2330 assert(has_annotations_field(), "annotations field must be present");
duke@435 2331 field->obj_field_put(annotations_offset, value);
duke@435 2332 }
duke@435 2333
stefank@4393 2334 bool java_lang_reflect_Field::has_type_annotations_field() {
stefank@4393 2335 return (type_annotations_offset >= 0);
stefank@4393 2336 }
stefank@4393 2337
stefank@4393 2338 oop java_lang_reflect_Field::type_annotations(oop field) {
stefank@4393 2339 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
stefank@4393 2340 assert(has_type_annotations_field(), "type_annotations field must be present");
stefank@4393 2341 return field->obj_field(type_annotations_offset);
stefank@4393 2342 }
stefank@4393 2343
stefank@4393 2344 void java_lang_reflect_Field::set_type_annotations(oop field, oop value) {
stefank@4393 2345 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
stefank@4393 2346 assert(has_type_annotations_field(), "type_annotations field must be present");
stefank@4393 2347 field->obj_field_put(type_annotations_offset, value);
stefank@4393 2348 }
duke@435 2349
duke@435 2350 void sun_reflect_ConstantPool::compute_offsets() {
coleenp@4037 2351 Klass* k = SystemDictionary::reflect_ConstantPool_klass();
duke@435 2352 // This null test can be removed post beta
duke@435 2353 if (k != NULL) {
coleenp@4037 2354 // The field is called ConstantPool* in the sun.reflect.ConstantPool class.
coleenp@4037 2355 compute_offset(_oop_offset, k, vmSymbols::ConstantPool_name(), vmSymbols::object_signature());
duke@435 2356 }
duke@435 2357 }
duke@435 2358
coleenp@4398 2359 void java_lang_reflect_Parameter::compute_offsets() {
coleenp@4398 2360 Klass* k = SystemDictionary::reflect_Parameter_klass();
coleenp@4398 2361 if(NULL != k) {
coleenp@4398 2362 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature());
coleenp@4398 2363 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature());
coleenp@4398 2364 compute_offset(index_offset, k, vmSymbols::index_name(), vmSymbols::int_signature());
coleenp@4398 2365 compute_offset(executable_offset, k, vmSymbols::executable_name(), vmSymbols::executable_signature());
coleenp@4398 2366 }
coleenp@4398 2367 }
coleenp@4398 2368
coleenp@4398 2369 Handle java_lang_reflect_Parameter::create(TRAPS) {
coleenp@4398 2370 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
coleenp@4398 2371 Symbol* name = vmSymbols::java_lang_reflect_Parameter();
coleenp@4398 2372 Klass* k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH);
coleenp@4398 2373 instanceKlassHandle klass (THREAD, k);
coleenp@4398 2374 // Ensure it is initialized
coleenp@4398 2375 klass->initialize(CHECK_NH);
coleenp@4398 2376 return klass->allocate_instance_handle(CHECK_NH);
coleenp@4398 2377 }
coleenp@4398 2378
coleenp@4398 2379 oop java_lang_reflect_Parameter::name(oop param) {
coleenp@4398 2380 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
coleenp@4398 2381 return param->obj_field(name_offset);
coleenp@4398 2382 }
coleenp@4398 2383
coleenp@4398 2384 void java_lang_reflect_Parameter::set_name(oop param, oop value) {
coleenp@4398 2385 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
coleenp@4398 2386 param->obj_field_put(name_offset, value);
coleenp@4398 2387 }
coleenp@4398 2388
coleenp@4398 2389 int java_lang_reflect_Parameter::modifiers(oop param) {
coleenp@4398 2390 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
coleenp@4398 2391 return param->int_field(modifiers_offset);
coleenp@4398 2392 }
coleenp@4398 2393
coleenp@4398 2394 void java_lang_reflect_Parameter::set_modifiers(oop param, int value) {
coleenp@4398 2395 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
coleenp@4398 2396 param->int_field_put(modifiers_offset, value);
coleenp@4398 2397 }
coleenp@4398 2398
coleenp@4398 2399 int java_lang_reflect_Parameter::index(oop param) {
coleenp@4398 2400 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
coleenp@4398 2401 return param->int_field(index_offset);
coleenp@4398 2402 }
coleenp@4398 2403
coleenp@4398 2404 void java_lang_reflect_Parameter::set_index(oop param, int value) {
coleenp@4398 2405 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
coleenp@4398 2406 param->int_field_put(index_offset, value);
coleenp@4398 2407 }
coleenp@4398 2408
coleenp@4398 2409 oop java_lang_reflect_Parameter::executable(oop param) {
coleenp@4398 2410 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
coleenp@4398 2411 return param->obj_field(executable_offset);
coleenp@4398 2412 }
coleenp@4398 2413
coleenp@4398 2414 void java_lang_reflect_Parameter::set_executable(oop param, oop value) {
coleenp@4398 2415 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
coleenp@4398 2416 param->obj_field_put(executable_offset, value);
coleenp@4398 2417 }
coleenp@4398 2418
duke@435 2419
duke@435 2420 Handle sun_reflect_ConstantPool::create(TRAPS) {
duke@435 2421 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
coleenp@4037 2422 Klass* k = SystemDictionary::reflect_ConstantPool_klass();
duke@435 2423 instanceKlassHandle klass (THREAD, k);
duke@435 2424 // Ensure it is initialized
duke@435 2425 klass->initialize(CHECK_NH);
duke@435 2426 return klass->allocate_instance_handle(CHECK_NH);
duke@435 2427 }
duke@435 2428
duke@435 2429
coleenp@4037 2430 void sun_reflect_ConstantPool::set_cp(oop reflect, ConstantPool* value) {
duke@435 2431 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
coleenp@4037 2432 oop mirror = value->pool_holder()->java_mirror();
coleenp@4037 2433 // Save the mirror to get back the constant pool.
coleenp@4037 2434 reflect->obj_field_put(_oop_offset, mirror);
duke@435 2435 }
duke@435 2436
coleenp@4037 2437 ConstantPool* sun_reflect_ConstantPool::get_cp(oop reflect) {
duke@435 2438 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
coleenp@4037 2439
coleenp@4037 2440 oop mirror = reflect->obj_field(_oop_offset);
coleenp@4037 2441 Klass* k = java_lang_Class::as_Klass(mirror);
coleenp@4037 2442 assert(k->oop_is_instance(), "Must be");
coleenp@4037 2443
coleenp@4037 2444 // Get the constant pool back from the klass. Since class redefinition
coleenp@4037 2445 // merges the new constant pool into the old, this is essentially the
coleenp@4037 2446 // same constant pool as the original. If constant pool merging is
coleenp@4037 2447 // no longer done in the future, this will have to change to save
coleenp@4037 2448 // the original.
coleenp@4037 2449 return InstanceKlass::cast(k)->constants();
duke@435 2450 }
duke@435 2451
duke@435 2452 void sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets() {
coleenp@4037 2453 Klass* k = SystemDictionary::reflect_UnsafeStaticFieldAccessorImpl_klass();
duke@435 2454 // This null test can be removed post beta
duke@435 2455 if (k != NULL) {
jrose@567 2456 compute_offset(_base_offset, k,
duke@435 2457 vmSymbols::base_name(), vmSymbols::object_signature());
duke@435 2458 }
duke@435 2459 }
duke@435 2460
jrose@567 2461 oop java_lang_boxing_object::initialize_and_allocate(BasicType type, TRAPS) {
coleenp@4037 2462 Klass* k = SystemDictionary::box_klass(type);
jrose@567 2463 if (k == NULL) return NULL;
jrose@567 2464 instanceKlassHandle h (THREAD, k);
jrose@567 2465 if (!h->is_initialized()) h->initialize(CHECK_0);
jrose@567 2466 return h->allocate_instance(THREAD);
duke@435 2467 }
duke@435 2468
duke@435 2469
duke@435 2470 oop java_lang_boxing_object::create(BasicType type, jvalue* value, TRAPS) {
jrose@567 2471 oop box = initialize_and_allocate(type, CHECK_0);
jrose@567 2472 if (box == NULL) return NULL;
duke@435 2473 switch (type) {
duke@435 2474 case T_BOOLEAN:
duke@435 2475 box->bool_field_put(value_offset, value->z);
duke@435 2476 break;
duke@435 2477 case T_CHAR:
duke@435 2478 box->char_field_put(value_offset, value->c);
duke@435 2479 break;
duke@435 2480 case T_FLOAT:
duke@435 2481 box->float_field_put(value_offset, value->f);
duke@435 2482 break;
duke@435 2483 case T_DOUBLE:
kvn@600 2484 box->double_field_put(long_value_offset, value->d);
duke@435 2485 break;
duke@435 2486 case T_BYTE:
duke@435 2487 box->byte_field_put(value_offset, value->b);
duke@435 2488 break;
duke@435 2489 case T_SHORT:
duke@435 2490 box->short_field_put(value_offset, value->s);
duke@435 2491 break;
duke@435 2492 case T_INT:
duke@435 2493 box->int_field_put(value_offset, value->i);
duke@435 2494 break;
duke@435 2495 case T_LONG:
kvn@600 2496 box->long_field_put(long_value_offset, value->j);
duke@435 2497 break;
duke@435 2498 default:
duke@435 2499 return NULL;
duke@435 2500 }
duke@435 2501 return box;
duke@435 2502 }
duke@435 2503
duke@435 2504
jrose@567 2505 BasicType java_lang_boxing_object::basic_type(oop box) {
jrose@567 2506 if (box == NULL) return T_ILLEGAL;
jrose@567 2507 BasicType type = SystemDictionary::box_klass_type(box->klass());
jrose@567 2508 if (type == T_OBJECT) // 'unknown' value returned by SD::bkt
jrose@567 2509 return T_ILLEGAL;
jrose@567 2510 return type;
jrose@567 2511 }
jrose@567 2512
jrose@567 2513
duke@435 2514 BasicType java_lang_boxing_object::get_value(oop box, jvalue* value) {
jrose@567 2515 BasicType type = SystemDictionary::box_klass_type(box->klass());
jrose@567 2516 switch (type) {
jrose@567 2517 case T_BOOLEAN:
duke@435 2518 value->z = box->bool_field(value_offset);
jrose@567 2519 break;
jrose@567 2520 case T_CHAR:
duke@435 2521 value->c = box->char_field(value_offset);
jrose@567 2522 break;
jrose@567 2523 case T_FLOAT:
duke@435 2524 value->f = box->float_field(value_offset);
jrose@567 2525 break;
jrose@567 2526 case T_DOUBLE:
kvn@600 2527 value->d = box->double_field(long_value_offset);
jrose@567 2528 break;
jrose@567 2529 case T_BYTE:
duke@435 2530 value->b = box->byte_field(value_offset);
jrose@567 2531 break;
jrose@567 2532 case T_SHORT:
duke@435 2533 value->s = box->short_field(value_offset);
jrose@567 2534 break;
jrose@567 2535 case T_INT:
duke@435 2536 value->i = box->int_field(value_offset);
jrose@567 2537 break;
jrose@567 2538 case T_LONG:
kvn@600 2539 value->j = box->long_field(long_value_offset);
jrose@567 2540 break;
jrose@567 2541 default:
jrose@567 2542 return T_ILLEGAL;
jrose@567 2543 } // end switch
jrose@567 2544 return type;
duke@435 2545 }
duke@435 2546
duke@435 2547
duke@435 2548 BasicType java_lang_boxing_object::set_value(oop box, jvalue* value) {
jrose@567 2549 BasicType type = SystemDictionary::box_klass_type(box->klass());
jrose@567 2550 switch (type) {
jrose@567 2551 case T_BOOLEAN:
duke@435 2552 box->bool_field_put(value_offset, value->z);
jrose@567 2553 break;
jrose@567 2554 case T_CHAR:
duke@435 2555 box->char_field_put(value_offset, value->c);
jrose@567 2556 break;
jrose@567 2557 case T_FLOAT:
duke@435 2558 box->float_field_put(value_offset, value->f);
jrose@567 2559 break;
jrose@567 2560 case T_DOUBLE:
kvn@600 2561 box->double_field_put(long_value_offset, value->d);
jrose@567 2562 break;
jrose@567 2563 case T_BYTE:
duke@435 2564 box->byte_field_put(value_offset, value->b);
jrose@567 2565 break;
jrose@567 2566 case T_SHORT:
duke@435 2567 box->short_field_put(value_offset, value->s);
jrose@567 2568 break;
jrose@567 2569 case T_INT:
duke@435 2570 box->int_field_put(value_offset, value->i);
jrose@567 2571 break;
jrose@567 2572 case T_LONG:
kvn@600 2573 box->long_field_put(long_value_offset, value->j);
jrose@567 2574 break;
jrose@567 2575 default:
jrose@567 2576 return T_ILLEGAL;
jrose@567 2577 } // end switch
jrose@567 2578 return type;
duke@435 2579 }
duke@435 2580
duke@435 2581
jrose@1100 2582 void java_lang_boxing_object::print(BasicType type, jvalue* value, outputStream* st) {
jrose@1100 2583 switch (type) {
jrose@1100 2584 case T_BOOLEAN: st->print("%s", value->z ? "true" : "false"); break;
jrose@1100 2585 case T_CHAR: st->print("%d", value->c); break;
jrose@1100 2586 case T_BYTE: st->print("%d", value->b); break;
jrose@1100 2587 case T_SHORT: st->print("%d", value->s); break;
jrose@1100 2588 case T_INT: st->print("%d", value->i); break;
jrose@1100 2589 case T_LONG: st->print(INT64_FORMAT, value->j); break;
jrose@1100 2590 case T_FLOAT: st->print("%f", value->f); break;
jrose@1100 2591 case T_DOUBLE: st->print("%lf", value->d); break;
jrose@1100 2592 default: st->print("type %d?", type); break;
jrose@1100 2593 }
jrose@1100 2594 }
jrose@1100 2595
jrose@1100 2596
duke@435 2597 // Support for java_lang_ref_Reference
coleenp@4037 2598 HeapWord *java_lang_ref_Reference::pending_list_lock_addr() {
coleenp@4037 2599 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Reference_klass());
coleenp@4037 2600 address addr = ik->static_field_addr(static_lock_offset);
coleenp@4037 2601 return (HeapWord*) addr;
coleenp@4037 2602 }
coleenp@4037 2603
coleenp@548 2604 oop java_lang_ref_Reference::pending_list_lock() {
coleenp@4037 2605 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Reference_klass());
never@2658 2606 address addr = ik->static_field_addr(static_lock_offset);
coleenp@548 2607 if (UseCompressedOops) {
coleenp@548 2608 return oopDesc::load_decode_heap_oop((narrowOop *)addr);
coleenp@548 2609 } else {
coleenp@548 2610 return oopDesc::load_decode_heap_oop((oop*)addr);
coleenp@548 2611 }
duke@435 2612 }
duke@435 2613
coleenp@548 2614 HeapWord *java_lang_ref_Reference::pending_list_addr() {
coleenp@4037 2615 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Reference_klass());
never@2658 2616 address addr = ik->static_field_addr(static_pending_offset);
coleenp@548 2617 // XXX This might not be HeapWord aligned, almost rather be char *.
coleenp@548 2618 return (HeapWord*)addr;
duke@435 2619 }
duke@435 2620
coleenp@548 2621 oop java_lang_ref_Reference::pending_list() {
coleenp@548 2622 char *addr = (char *)pending_list_addr();
coleenp@548 2623 if (UseCompressedOops) {
coleenp@548 2624 return oopDesc::load_decode_heap_oop((narrowOop *)addr);
coleenp@548 2625 } else {
coleenp@548 2626 return oopDesc::load_decode_heap_oop((oop*)addr);
coleenp@548 2627 }
duke@435 2628 }
duke@435 2629
duke@435 2630
duke@435 2631 // Support for java_lang_ref_SoftReference
duke@435 2632
duke@435 2633 jlong java_lang_ref_SoftReference::timestamp(oop ref) {
duke@435 2634 return ref->long_field(timestamp_offset);
duke@435 2635 }
duke@435 2636
duke@435 2637 jlong java_lang_ref_SoftReference::clock() {
coleenp@4037 2638 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::SoftReference_klass());
never@2658 2639 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset);
never@2658 2640 return *offset;
duke@435 2641 }
duke@435 2642
duke@435 2643 void java_lang_ref_SoftReference::set_clock(jlong value) {
coleenp@4037 2644 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::SoftReference_klass());
never@2658 2645 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset);
never@2658 2646 *offset = value;
duke@435 2647 }
duke@435 2648
sspitsyn@5496 2649 // Support for java_lang_invoke_DirectMethodHandle
sspitsyn@5496 2650
sspitsyn@5496 2651 int java_lang_invoke_DirectMethodHandle::_member_offset;
sspitsyn@5496 2652
sspitsyn@5496 2653 oop java_lang_invoke_DirectMethodHandle::member(oop dmh) {
sspitsyn@5496 2654 oop member_name = NULL;
sspitsyn@5496 2655 bool is_dmh = dmh->is_oop() && java_lang_invoke_DirectMethodHandle::is_instance(dmh);
sspitsyn@5496 2656 assert(is_dmh, "a DirectMethodHandle oop is expected");
sspitsyn@5496 2657 if (is_dmh) {
sspitsyn@5496 2658 member_name = dmh->obj_field(member_offset_in_bytes());
sspitsyn@5496 2659 }
sspitsyn@5496 2660 return member_name;
sspitsyn@5496 2661 }
sspitsyn@5496 2662
sspitsyn@5496 2663 void java_lang_invoke_DirectMethodHandle::compute_offsets() {
sspitsyn@5496 2664 Klass* klass_oop = SystemDictionary::DirectMethodHandle_klass();
sspitsyn@5496 2665 if (klass_oop != NULL && EnableInvokeDynamic) {
sspitsyn@5496 2666 compute_offset(_member_offset, klass_oop, vmSymbols::member_name(), vmSymbols::java_lang_invoke_MemberName_signature());
sspitsyn@5496 2667 }
sspitsyn@5496 2668 }
duke@435 2669
jrose@2639 2670 // Support for java_lang_invoke_MethodHandle
jrose@2639 2671
jrose@2639 2672 int java_lang_invoke_MethodHandle::_type_offset;
twisti@3969 2673 int java_lang_invoke_MethodHandle::_form_offset;
jrose@2639 2674
jrose@2639 2675 int java_lang_invoke_MemberName::_clazz_offset;
jrose@2639 2676 int java_lang_invoke_MemberName::_name_offset;
jrose@2639 2677 int java_lang_invoke_MemberName::_type_offset;
jrose@2639 2678 int java_lang_invoke_MemberName::_flags_offset;
jrose@2639 2679 int java_lang_invoke_MemberName::_vmtarget_offset;
coleenp@4037 2680 int java_lang_invoke_MemberName::_vmloader_offset;
jrose@2639 2681 int java_lang_invoke_MemberName::_vmindex_offset;
jrose@2639 2682
twisti@3969 2683 int java_lang_invoke_LambdaForm::_vmentry_offset;
never@3105 2684
jrose@2639 2685 void java_lang_invoke_MethodHandle::compute_offsets() {
coleenp@4037 2686 Klass* klass_oop = SystemDictionary::MethodHandle_klass();
never@3137 2687 if (klass_oop != NULL && EnableInvokeDynamic) {
twisti@3969 2688 compute_offset(_type_offset, klass_oop, vmSymbols::type_name(), vmSymbols::java_lang_invoke_MethodType_signature());
twisti@3969 2689 compute_optional_offset(_form_offset, klass_oop, vmSymbols::form_name(), vmSymbols::java_lang_invoke_LambdaForm_signature());
twisti@3969 2690 if (_form_offset == 0) {
twisti@3969 2691 EnableInvokeDynamic = false;
twisti@3969 2692 }
jrose@1145 2693 }
jrose@1145 2694 }
jrose@1145 2695
jrose@2639 2696 void java_lang_invoke_MemberName::compute_offsets() {
coleenp@4037 2697 Klass* klass_oop = SystemDictionary::MemberName_klass();
never@3137 2698 if (klass_oop != NULL && EnableInvokeDynamic) {
never@3137 2699 compute_offset(_clazz_offset, klass_oop, vmSymbols::clazz_name(), vmSymbols::class_signature());
never@3137 2700 compute_offset(_name_offset, klass_oop, vmSymbols::name_name(), vmSymbols::string_signature());
never@3137 2701 compute_offset(_type_offset, klass_oop, vmSymbols::type_name(), vmSymbols::object_signature());
never@3137 2702 compute_offset(_flags_offset, klass_oop, vmSymbols::flags_name(), vmSymbols::int_signature());
never@3137 2703 MEMBERNAME_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET);
jrose@1145 2704 }
jrose@1145 2705 }
jrose@1145 2706
twisti@3969 2707 void java_lang_invoke_LambdaForm::compute_offsets() {
coleenp@4037 2708 Klass* klass_oop = SystemDictionary::LambdaForm_klass();
twisti@3969 2709 if (klass_oop != NULL && EnableInvokeDynamic) {
twisti@3969 2710 compute_offset(_vmentry_offset, klass_oop, vmSymbols::vmentry_name(), vmSymbols::java_lang_invoke_MemberName_signature());
jrose@1145 2711 }
jrose@1145 2712 }
jrose@1145 2713
jrose@2639 2714 oop java_lang_invoke_MethodHandle::type(oop mh) {
jrose@1145 2715 return mh->obj_field(_type_offset);
jrose@1145 2716 }
jrose@1145 2717
jrose@2639 2718 void java_lang_invoke_MethodHandle::set_type(oop mh, oop mtype) {
jrose@1145 2719 mh->obj_field_put(_type_offset, mtype);
jrose@1145 2720 }
jrose@1145 2721
twisti@3969 2722 oop java_lang_invoke_MethodHandle::form(oop mh) {
twisti@3969 2723 assert(_form_offset != 0, "");
twisti@3969 2724 return mh->obj_field(_form_offset);
jrose@1145 2725 }
jrose@1145 2726
twisti@3969 2727 void java_lang_invoke_MethodHandle::set_form(oop mh, oop lform) {
twisti@3969 2728 assert(_form_offset != 0, "");
twisti@3969 2729 mh->obj_field_put(_form_offset, lform);
jrose@1145 2730 }
jrose@1145 2731
jrose@1145 2732 /// MemberName accessors
jrose@1145 2733
jrose@2639 2734 oop java_lang_invoke_MemberName::clazz(oop mname) {
jrose@1145 2735 assert(is_instance(mname), "wrong type");
jrose@1145 2736 return mname->obj_field(_clazz_offset);
jrose@1145 2737 }
jrose@1145 2738
jrose@2639 2739 void java_lang_invoke_MemberName::set_clazz(oop mname, oop clazz) {
jrose@1145 2740 assert(is_instance(mname), "wrong type");
jrose@1145 2741 mname->obj_field_put(_clazz_offset, clazz);
jrose@1145 2742 }
jrose@1145 2743
jrose@2639 2744 oop java_lang_invoke_MemberName::name(oop mname) {
jrose@1145 2745 assert(is_instance(mname), "wrong type");
jrose@1145 2746 return mname->obj_field(_name_offset);
jrose@1145 2747 }
jrose@1145 2748
jrose@2639 2749 void java_lang_invoke_MemberName::set_name(oop mname, oop name) {
jrose@1145 2750 assert(is_instance(mname), "wrong type");
jrose@1145 2751 mname->obj_field_put(_name_offset, name);
jrose@1145 2752 }
jrose@1145 2753
jrose@2639 2754 oop java_lang_invoke_MemberName::type(oop mname) {
jrose@1145 2755 assert(is_instance(mname), "wrong type");
jrose@1145 2756 return mname->obj_field(_type_offset);
jrose@1145 2757 }
jrose@1145 2758
jrose@2639 2759 void java_lang_invoke_MemberName::set_type(oop mname, oop type) {
jrose@1145 2760 assert(is_instance(mname), "wrong type");
jrose@1145 2761 mname->obj_field_put(_type_offset, type);
jrose@1145 2762 }
jrose@1145 2763
jrose@2639 2764 int java_lang_invoke_MemberName::flags(oop mname) {
jrose@1145 2765 assert(is_instance(mname), "wrong type");
jrose@1145 2766 return mname->int_field(_flags_offset);
jrose@1145 2767 }
jrose@1145 2768
jrose@2639 2769 void java_lang_invoke_MemberName::set_flags(oop mname, int flags) {
jrose@1145 2770 assert(is_instance(mname), "wrong type");
jrose@1145 2771 mname->int_field_put(_flags_offset, flags);
jrose@1145 2772 }
jrose@1145 2773
coleenp@4037 2774 Metadata* java_lang_invoke_MemberName::vmtarget(oop mname) {
jrose@1145 2775 assert(is_instance(mname), "wrong type");
coleenp@4037 2776 return (Metadata*)mname->address_field(_vmtarget_offset);
jrose@1145 2777 }
jrose@1145 2778
coleenp@7391 2779 bool java_lang_invoke_MemberName::is_method(oop mname) {
coleenp@7391 2780 assert(is_instance(mname), "must be MemberName");
coleenp@7391 2781 return (flags(mname) & (MN_IS_METHOD | MN_IS_CONSTRUCTOR)) > 0;
coleenp@7391 2782 }
coleenp@7391 2783
sspitsyn@4965 2784 #if INCLUDE_JVMTI
sspitsyn@4965 2785 // Can be executed on VM thread only
coleenp@7391 2786 void java_lang_invoke_MemberName::adjust_vmtarget(oop mname, Method* old_method,
coleenp@7391 2787 Method* new_method, bool* trace_name_printed) {
coleenp@7391 2788 assert(is_method(mname), "wrong type");
sspitsyn@4965 2789 assert(Thread::current()->is_VM_thread(), "not VM thread");
coleenp@7391 2790
coleenp@7391 2791 Method* target = (Method*)mname->address_field(_vmtarget_offset);
coleenp@7391 2792 if (target == old_method) {
coleenp@7391 2793 mname->address_field_put(_vmtarget_offset, (address)new_method);
coleenp@7391 2794
coleenp@7391 2795 if (RC_TRACE_IN_RANGE(0x00100000, 0x00400000)) {
coleenp@7391 2796 if (!(*trace_name_printed)) {
coleenp@7391 2797 // RC_TRACE_MESG macro has an embedded ResourceMark
coleenp@7391 2798 RC_TRACE_MESG(("adjust: name=%s",
coleenp@7391 2799 old_method->method_holder()->external_name()));
coleenp@7391 2800 *trace_name_printed = true;
coleenp@7391 2801 }
coleenp@7391 2802 // RC_TRACE macro has an embedded ResourceMark
coleenp@7391 2803 RC_TRACE(0x00400000, ("MemberName method update: %s(%s)",
coleenp@7391 2804 new_method->name()->as_C_string(),
coleenp@7391 2805 new_method->signature()->as_C_string()));
coleenp@7391 2806 }
coleenp@7391 2807 }
sspitsyn@4965 2808 }
sspitsyn@4965 2809 #endif // INCLUDE_JVMTI
sspitsyn@4965 2810
coleenp@4037 2811 void java_lang_invoke_MemberName::set_vmtarget(oop mname, Metadata* ref) {
jrose@1145 2812 assert(is_instance(mname), "wrong type");
twisti@3969 2813 // check the type of the vmtarget
coleenp@4304 2814 oop dependency = NULL;
twisti@3969 2815 if (ref != NULL) {
twisti@3969 2816 switch (flags(mname) & (MN_IS_METHOD |
twisti@3969 2817 MN_IS_CONSTRUCTOR |
twisti@3969 2818 MN_IS_FIELD)) {
twisti@3969 2819 case MN_IS_METHOD:
twisti@3969 2820 case MN_IS_CONSTRUCTOR:
twisti@3969 2821 assert(ref->is_method(), "should be a method");
coleenp@4304 2822 dependency = ((Method*)ref)->method_holder()->java_mirror();
twisti@3969 2823 break;
twisti@3969 2824 case MN_IS_FIELD:
twisti@3969 2825 assert(ref->is_klass(), "should be a class");
coleenp@4304 2826 dependency = ((Klass*)ref)->java_mirror();
twisti@3969 2827 break;
twisti@3969 2828 default:
twisti@3969 2829 ShouldNotReachHere();
twisti@3969 2830 }
twisti@3969 2831 }
coleenp@4037 2832 mname->address_field_put(_vmtarget_offset, (address)ref);
coleenp@4304 2833 // Add a reference to the loader (actually mirror because anonymous classes will not have
coleenp@4304 2834 // distinct loaders) to ensure the metadata is kept alive
coleenp@4304 2835 // This mirror may be different than the one in clazz field.
coleenp@4304 2836 mname->obj_field_put(_vmloader_offset, dependency);
jrose@1145 2837 }
jrose@1145 2838
twisti@3969 2839 intptr_t java_lang_invoke_MemberName::vmindex(oop mname) {
jrose@1145 2840 assert(is_instance(mname), "wrong type");
twisti@3969 2841 return (intptr_t) mname->address_field(_vmindex_offset);
jrose@1145 2842 }
jrose@1145 2843
twisti@3969 2844 void java_lang_invoke_MemberName::set_vmindex(oop mname, intptr_t index) {
jrose@1145 2845 assert(is_instance(mname), "wrong type");
twisti@3969 2846 mname->address_field_put(_vmindex_offset, (address) index);
jrose@1145 2847 }
jrose@1145 2848
twisti@3969 2849 oop java_lang_invoke_LambdaForm::vmentry(oop lform) {
twisti@3969 2850 assert(is_instance(lform), "wrong type");
twisti@3969 2851 return lform->obj_field(_vmentry_offset);
jrose@1145 2852 }
jrose@1145 2853
jrose@1145 2854
jrose@2639 2855 // Support for java_lang_invoke_MethodType
jrose@2639 2856
jrose@2639 2857 int java_lang_invoke_MethodType::_rtype_offset;
jrose@2639 2858 int java_lang_invoke_MethodType::_ptypes_offset;
jrose@2639 2859
jrose@2639 2860 void java_lang_invoke_MethodType::compute_offsets() {
coleenp@4037 2861 Klass* k = SystemDictionary::MethodType_klass();
jrose@1145 2862 if (k != NULL) {
jrose@1145 2863 compute_offset(_rtype_offset, k, vmSymbols::rtype_name(), vmSymbols::class_signature());
jrose@1145 2864 compute_offset(_ptypes_offset, k, vmSymbols::ptypes_name(), vmSymbols::class_array_signature());
jrose@1145 2865 }
jrose@1145 2866 }
jrose@1145 2867
jrose@2639 2868 void java_lang_invoke_MethodType::print_signature(oop mt, outputStream* st) {
jrose@1145 2869 st->print("(");
jrose@1145 2870 objArrayOop pts = ptypes(mt);
jrose@1145 2871 for (int i = 0, limit = pts->length(); i < limit; i++) {
jrose@1145 2872 java_lang_Class::print_signature(pts->obj_at(i), st);
jrose@1145 2873 }
jrose@1145 2874 st->print(")");
jrose@1145 2875 java_lang_Class::print_signature(rtype(mt), st);
jrose@1145 2876 }
jrose@1145 2877
jrose@2639 2878 Symbol* java_lang_invoke_MethodType::as_signature(oop mt, bool intern_if_not_found, TRAPS) {
jrose@1145 2879 ResourceMark rm;
jrose@1145 2880 stringStream buffer(128);
jrose@1145 2881 print_signature(mt, &buffer);
jrose@1145 2882 const char* sigstr = buffer.base();
jrose@1145 2883 int siglen = (int) buffer.size();
coleenp@2497 2884 Symbol *name;
coleenp@2497 2885 if (!intern_if_not_found) {
coleenp@2497 2886 name = SymbolTable::probe(sigstr, siglen);
coleenp@2497 2887 } else {
coleenp@2497 2888 name = SymbolTable::new_symbol(sigstr, siglen, THREAD);
coleenp@2497 2889 }
coleenp@2497 2890 return name;
jrose@1145 2891 }
jrose@1145 2892
jrose@2982 2893 bool java_lang_invoke_MethodType::equals(oop mt1, oop mt2) {
twisti@3969 2894 if (mt1 == mt2)
twisti@3969 2895 return true;
jrose@2982 2896 if (rtype(mt1) != rtype(mt2))
jrose@2982 2897 return false;
jrose@2982 2898 if (ptype_count(mt1) != ptype_count(mt2))
jrose@2982 2899 return false;
jrose@2982 2900 for (int i = ptype_count(mt1) - 1; i >= 0; i--) {
jrose@2982 2901 if (ptype(mt1, i) != ptype(mt2, i))
jrose@2982 2902 return false;
jrose@2982 2903 }
jrose@2982 2904 return true;
jrose@2982 2905 }
jrose@2982 2906
jrose@2639 2907 oop java_lang_invoke_MethodType::rtype(oop mt) {
jrose@1145 2908 assert(is_instance(mt), "must be a MethodType");
jrose@1145 2909 return mt->obj_field(_rtype_offset);
jrose@1145 2910 }
jrose@1145 2911
jrose@2639 2912 objArrayOop java_lang_invoke_MethodType::ptypes(oop mt) {
jrose@1145 2913 assert(is_instance(mt), "must be a MethodType");
jrose@1145 2914 return (objArrayOop) mt->obj_field(_ptypes_offset);
jrose@1145 2915 }
jrose@1145 2916
jrose@2639 2917 oop java_lang_invoke_MethodType::ptype(oop mt, int idx) {
jrose@1145 2918 return ptypes(mt)->obj_at(idx);
jrose@1145 2919 }
jrose@1145 2920
jrose@2639 2921 int java_lang_invoke_MethodType::ptype_count(oop mt) {
twisti@1568 2922 return ptypes(mt)->length();
twisti@1568 2923 }
twisti@1568 2924
twisti@3969 2925 int java_lang_invoke_MethodType::ptype_slot_count(oop mt) {
twisti@3969 2926 objArrayOop pts = ptypes(mt);
twisti@3969 2927 int count = pts->length();
twisti@3969 2928 int slots = 0;
twisti@3969 2929 for (int i = 0; i < count; i++) {
twisti@3969 2930 BasicType bt = java_lang_Class::as_BasicType(pts->obj_at(i));
twisti@3969 2931 slots += type2size[bt];
jrose@1145 2932 }
twisti@3969 2933 return slots;
jrose@1145 2934 }
jrose@1145 2935
twisti@3969 2936 int java_lang_invoke_MethodType::rtype_slot_count(oop mt) {
twisti@3969 2937 BasicType bt = java_lang_Class::as_BasicType(rtype(mt));
twisti@3969 2938 return type2size[bt];
jrose@2148 2939 }
jrose@2148 2940
jrose@1145 2941
jrose@2639 2942 // Support for java_lang_invoke_CallSite
jrose@2639 2943
jrose@2639 2944 int java_lang_invoke_CallSite::_target_offset;
jrose@2639 2945
jrose@2639 2946 void java_lang_invoke_CallSite::compute_offsets() {
jrose@1161 2947 if (!EnableInvokeDynamic) return;
coleenp@4037 2948 Klass* k = SystemDictionary::CallSite_klass();
jrose@1161 2949 if (k != NULL) {
jrose@2639 2950 compute_offset(_target_offset, k, vmSymbols::target_name(), vmSymbols::java_lang_invoke_MethodHandle_signature());
jrose@1161 2951 }
jrose@1161 2952 }
jrose@1161 2953
jrose@1145 2954
duke@435 2955 // Support for java_security_AccessControlContext
duke@435 2956
duke@435 2957 int java_security_AccessControlContext::_context_offset = 0;
duke@435 2958 int java_security_AccessControlContext::_privilegedContext_offset = 0;
duke@435 2959 int java_security_AccessControlContext::_isPrivileged_offset = 0;
mullan@5242 2960 int java_security_AccessControlContext::_isAuthorized_offset = -1;
duke@435 2961
duke@435 2962 void java_security_AccessControlContext::compute_offsets() {
duke@435 2963 assert(_isPrivileged_offset == 0, "offsets should be initialized only once");
duke@435 2964 fieldDescriptor fd;
coleenp@4037 2965 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::AccessControlContext_klass());
duke@435 2966
duke@435 2967 if (!ik->find_local_field(vmSymbols::context_name(), vmSymbols::protectiondomain_signature(), &fd)) {
duke@435 2968 fatal("Invalid layout of java.security.AccessControlContext");
duke@435 2969 }
duke@435 2970 _context_offset = fd.offset();
duke@435 2971
duke@435 2972 if (!ik->find_local_field(vmSymbols::privilegedContext_name(), vmSymbols::accesscontrolcontext_signature(), &fd)) {
duke@435 2973 fatal("Invalid layout of java.security.AccessControlContext");
duke@435 2974 }
duke@435 2975 _privilegedContext_offset = fd.offset();
duke@435 2976
duke@435 2977 if (!ik->find_local_field(vmSymbols::isPrivileged_name(), vmSymbols::bool_signature(), &fd)) {
duke@435 2978 fatal("Invalid layout of java.security.AccessControlContext");
duke@435 2979 }
duke@435 2980 _isPrivileged_offset = fd.offset();
mullan@5242 2981
mullan@5242 2982 // The offset may not be present for bootstrapping with older JDK.
mullan@5242 2983 if (ik->find_local_field(vmSymbols::isAuthorized_name(), vmSymbols::bool_signature(), &fd)) {
mullan@5242 2984 _isAuthorized_offset = fd.offset();
mullan@5242 2985 }
hseigel@4987 2986 }
hseigel@4987 2987
hseigel@4987 2988
mullan@5242 2989 bool java_security_AccessControlContext::is_authorized(Handle context) {
mullan@5242 2990 assert(context.not_null() && context->klass() == SystemDictionary::AccessControlContext_klass(), "Invalid type");
mullan@5242 2991 assert(_isAuthorized_offset != -1, "should be set");
mullan@5242 2992 return context->bool_field(_isAuthorized_offset) != 0;
mullan@5242 2993 }
duke@435 2994
duke@435 2995 oop java_security_AccessControlContext::create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS) {
duke@435 2996 assert(_isPrivileged_offset != 0, "offsets should have been initialized");
duke@435 2997 // Ensure klass is initialized
coleenp@4037 2998 InstanceKlass::cast(SystemDictionary::AccessControlContext_klass())->initialize(CHECK_0);
duke@435 2999 // Allocate result
coleenp@4037 3000 oop result = InstanceKlass::cast(SystemDictionary::AccessControlContext_klass())->allocate_instance(CHECK_0);
duke@435 3001 // Fill in values
duke@435 3002 result->obj_field_put(_context_offset, context());
duke@435 3003 result->obj_field_put(_privilegedContext_offset, privileged_context());
duke@435 3004 result->bool_field_put(_isPrivileged_offset, isPrivileged);
mullan@5243 3005 // whitelist AccessControlContexts created by the JVM if present
mullan@5243 3006 if (_isAuthorized_offset != -1) {
mullan@5243 3007 result->bool_field_put(_isAuthorized_offset, true);
mullan@5243 3008 }
duke@435 3009 return result;
duke@435 3010 }
duke@435 3011
duke@435 3012
duke@435 3013 // Support for java_lang_ClassLoader
coleenp@4037 3014
never@3137 3015 bool java_lang_ClassLoader::offsets_computed = false;
coleenp@4037 3016 int java_lang_ClassLoader::_loader_data_offset = -1;
never@3137 3017 int java_lang_ClassLoader::parallelCapable_offset = -1;
never@3137 3018
coleenp@4037 3019 ClassLoaderData** java_lang_ClassLoader::loader_data_addr(oop loader) {
coleenp@4037 3020 assert(loader != NULL && loader->is_oop(), "loader must be oop");
coleenp@4037 3021 return (ClassLoaderData**) loader->address_field_addr(_loader_data_offset);
coleenp@4037 3022 }
coleenp@4037 3023
coleenp@4037 3024 ClassLoaderData* java_lang_ClassLoader::loader_data(oop loader) {
coleenp@4037 3025 return *java_lang_ClassLoader::loader_data_addr(loader);
coleenp@4037 3026 }
coleenp@4037 3027
never@3137 3028 void java_lang_ClassLoader::compute_offsets() {
never@3137 3029 assert(!offsets_computed, "offsets should be initialized only once");
never@3137 3030 offsets_computed = true;
never@3137 3031
never@3137 3032 // The field indicating parallelCapable (parallelLockMap) is only present starting in 7,
coleenp@4037 3033 Klass* k1 = SystemDictionary::ClassLoader_klass();
never@3137 3034 compute_optional_offset(parallelCapable_offset,
never@3137 3035 k1, vmSymbols::parallelCapable_name(), vmSymbols::concurrenthashmap_signature());
coleenp@4037 3036
coleenp@4037 3037 CLASSLOADER_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET);
never@3137 3038 }
duke@435 3039
duke@435 3040 oop java_lang_ClassLoader::parent(oop loader) {
twisti@3969 3041 assert(is_instance(loader), "loader must be oop");
duke@435 3042 return loader->obj_field(parent_offset);
duke@435 3043 }
duke@435 3044
twisti@3969 3045 bool java_lang_ClassLoader::isAncestor(oop loader, oop cl) {
twisti@3969 3046 assert(is_instance(loader), "loader must be oop");
twisti@3969 3047 assert(cl == NULL || is_instance(cl), "cl argument must be oop");
twisti@3969 3048 oop acl = loader;
twisti@3969 3049 debug_only(jint loop_count = 0);
twisti@3969 3050 // This loop taken verbatim from ClassLoader.java:
twisti@3969 3051 do {
twisti@3969 3052 acl = parent(acl);
twisti@3969 3053 if (cl == acl) {
twisti@3969 3054 return true;
twisti@3969 3055 }
twisti@3969 3056 assert(++loop_count > 0, "loop_count overflow");
twisti@3969 3057 } while (acl != NULL);
twisti@3969 3058 return false;
twisti@3969 3059 }
twisti@3969 3060
duke@435 3061
never@3137 3062 // For class loader classes, parallelCapable defined
never@3137 3063 // based on non-null field
never@3137 3064 // Written to by java.lang.ClassLoader, vm only reads this field, doesn't set it
never@3137 3065 bool java_lang_ClassLoader::parallelCapable(oop class_loader) {
never@3137 3066 if (!JDK_Version::is_gte_jdk17x_version()
never@3137 3067 || parallelCapable_offset == -1) {
never@3137 3068 // Default for backward compatibility is false
never@3137 3069 return false;
never@3137 3070 }
never@3137 3071 return (class_loader->obj_field(parallelCapable_offset) != NULL);
never@3137 3072 }
never@3137 3073
duke@435 3074 bool java_lang_ClassLoader::is_trusted_loader(oop loader) {
duke@435 3075 // Fix for 4474172; see evaluation for more details
duke@435 3076 loader = non_reflection_class_loader(loader);
duke@435 3077
duke@435 3078 oop cl = SystemDictionary::java_system_loader();
duke@435 3079 while(cl != NULL) {
duke@435 3080 if (cl == loader) return true;
duke@435 3081 cl = parent(cl);
duke@435 3082 }
duke@435 3083 return false;
duke@435 3084 }
duke@435 3085
duke@435 3086 oop java_lang_ClassLoader::non_reflection_class_loader(oop loader) {
duke@435 3087 if (loader != NULL) {
duke@435 3088 // See whether this is one of the class loaders associated with
duke@435 3089 // the generated bytecodes for reflection, and if so, "magically"
duke@435 3090 // delegate to its parent to prevent class loading from occurring
duke@435 3091 // in places where applications using reflection didn't expect it.
coleenp@4037 3092 Klass* delegating_cl_class = SystemDictionary::reflect_DelegatingClassLoader_klass();
duke@435 3093 // This might be null in non-1.4 JDKs
duke@435 3094 if (delegating_cl_class != NULL && loader->is_a(delegating_cl_class)) {
duke@435 3095 return parent(loader);
duke@435 3096 }
duke@435 3097 }
duke@435 3098 return loader;
duke@435 3099 }
duke@435 3100
duke@435 3101
duke@435 3102 // Support for java_lang_System
never@2658 3103 int java_lang_System::in_offset_in_bytes() {
coleenp@4047 3104 return (InstanceMirrorKlass::offset_of_static_fields() + static_in_offset);
duke@435 3105 }
duke@435 3106
never@2658 3107
never@2658 3108 int java_lang_System::out_offset_in_bytes() {
coleenp@4047 3109 return (InstanceMirrorKlass::offset_of_static_fields() + static_out_offset);
duke@435 3110 }
duke@435 3111
duke@435 3112
duke@435 3113 int java_lang_System::err_offset_in_bytes() {
coleenp@4047 3114 return (InstanceMirrorKlass::offset_of_static_fields() + static_err_offset);
duke@435 3115 }
duke@435 3116
duke@435 3117
mullan@5242 3118 bool java_lang_System::has_security_manager() {
mullan@5242 3119 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::System_klass());
mullan@5242 3120 address addr = ik->static_field_addr(static_security_offset);
mullan@5242 3121 if (UseCompressedOops) {
mullan@5242 3122 return oopDesc::load_decode_heap_oop((narrowOop *)addr) != NULL;
mullan@5242 3123 } else {
mullan@5242 3124 return oopDesc::load_decode_heap_oop((oop*)addr) != NULL;
mullan@5242 3125 }
mullan@5242 3126 }
duke@435 3127
never@3137 3128 int java_lang_Class::_klass_offset;
never@3137 3129 int java_lang_Class::_array_klass_offset;
never@3137 3130 int java_lang_Class::_oop_size_offset;
never@3137 3131 int java_lang_Class::_static_oop_field_count_offset;
coleenp@7129 3132 int java_lang_Class::_class_loader_offset;
coleenp@5176 3133 int java_lang_Class::_protection_domain_offset;
coleenp@5176 3134 int java_lang_Class::_init_lock_offset;
coleenp@5176 3135 int java_lang_Class::_signers_offset;
coleenp@4037 3136 GrowableArray<Klass*>* java_lang_Class::_fixup_mirror_list = NULL;
duke@435 3137 int java_lang_Throwable::backtrace_offset;
duke@435 3138 int java_lang_Throwable::detailMessage_offset;
duke@435 3139 int java_lang_Throwable::cause_offset;
duke@435 3140 int java_lang_Throwable::stackTrace_offset;
dholmes@3018 3141 int java_lang_Throwable::static_unassigned_stacktrace_offset;
duke@435 3142 int java_lang_reflect_AccessibleObject::override_offset;
duke@435 3143 int java_lang_reflect_Method::clazz_offset;
duke@435 3144 int java_lang_reflect_Method::name_offset;
duke@435 3145 int java_lang_reflect_Method::returnType_offset;
duke@435 3146 int java_lang_reflect_Method::parameterTypes_offset;
duke@435 3147 int java_lang_reflect_Method::exceptionTypes_offset;
duke@435 3148 int java_lang_reflect_Method::slot_offset;
duke@435 3149 int java_lang_reflect_Method::modifiers_offset;
duke@435 3150 int java_lang_reflect_Method::signature_offset;
duke@435 3151 int java_lang_reflect_Method::annotations_offset;
duke@435 3152 int java_lang_reflect_Method::parameter_annotations_offset;
duke@435 3153 int java_lang_reflect_Method::annotation_default_offset;
stefank@4393 3154 int java_lang_reflect_Method::type_annotations_offset;
duke@435 3155 int java_lang_reflect_Constructor::clazz_offset;
duke@435 3156 int java_lang_reflect_Constructor::parameterTypes_offset;
duke@435 3157 int java_lang_reflect_Constructor::exceptionTypes_offset;
duke@435 3158 int java_lang_reflect_Constructor::slot_offset;
duke@435 3159 int java_lang_reflect_Constructor::modifiers_offset;
duke@435 3160 int java_lang_reflect_Constructor::signature_offset;
duke@435 3161 int java_lang_reflect_Constructor::annotations_offset;
duke@435 3162 int java_lang_reflect_Constructor::parameter_annotations_offset;
stefank@4393 3163 int java_lang_reflect_Constructor::type_annotations_offset;
duke@435 3164 int java_lang_reflect_Field::clazz_offset;
duke@435 3165 int java_lang_reflect_Field::name_offset;
duke@435 3166 int java_lang_reflect_Field::type_offset;
duke@435 3167 int java_lang_reflect_Field::slot_offset;
duke@435 3168 int java_lang_reflect_Field::modifiers_offset;
duke@435 3169 int java_lang_reflect_Field::signature_offset;
duke@435 3170 int java_lang_reflect_Field::annotations_offset;
stefank@4393 3171 int java_lang_reflect_Field::type_annotations_offset;
coleenp@4398 3172 int java_lang_reflect_Parameter::name_offset;
coleenp@4398 3173 int java_lang_reflect_Parameter::modifiers_offset;
coleenp@4398 3174 int java_lang_reflect_Parameter::index_offset;
coleenp@4398 3175 int java_lang_reflect_Parameter::executable_offset;
duke@435 3176 int java_lang_boxing_object::value_offset;
kvn@600 3177 int java_lang_boxing_object::long_value_offset;
duke@435 3178 int java_lang_ref_Reference::referent_offset;
duke@435 3179 int java_lang_ref_Reference::queue_offset;
duke@435 3180 int java_lang_ref_Reference::next_offset;
duke@435 3181 int java_lang_ref_Reference::discovered_offset;
duke@435 3182 int java_lang_ref_Reference::static_lock_offset;
duke@435 3183 int java_lang_ref_Reference::static_pending_offset;
duke@435 3184 int java_lang_ref_Reference::number_of_fake_oop_fields;
duke@435 3185 int java_lang_ref_SoftReference::timestamp_offset;
duke@435 3186 int java_lang_ref_SoftReference::static_clock_offset;
duke@435 3187 int java_lang_ClassLoader::parent_offset;
duke@435 3188 int java_lang_System::static_in_offset;
duke@435 3189 int java_lang_System::static_out_offset;
duke@435 3190 int java_lang_System::static_err_offset;
mullan@5242 3191 int java_lang_System::static_security_offset;
duke@435 3192 int java_lang_StackTraceElement::declaringClass_offset;
duke@435 3193 int java_lang_StackTraceElement::methodName_offset;
duke@435 3194 int java_lang_StackTraceElement::fileName_offset;
duke@435 3195 int java_lang_StackTraceElement::lineNumber_offset;
duke@435 3196 int java_lang_AssertionStatusDirectives::classes_offset;
duke@435 3197 int java_lang_AssertionStatusDirectives::classEnabled_offset;
duke@435 3198 int java_lang_AssertionStatusDirectives::packages_offset;
duke@435 3199 int java_lang_AssertionStatusDirectives::packageEnabled_offset;
duke@435 3200 int java_lang_AssertionStatusDirectives::deflt_offset;
duke@435 3201 int java_nio_Buffer::_limit_offset;
duke@435 3202 int java_util_concurrent_locks_AbstractOwnableSynchronizer::_owner_offset = 0;
coleenp@4037 3203 int sun_reflect_ConstantPool::_oop_offset;
duke@435 3204 int sun_reflect_UnsafeStaticFieldAccessorImpl::_base_offset;
duke@435 3205
duke@435 3206
duke@435 3207 // Support for java_lang_StackTraceElement
duke@435 3208
duke@435 3209 void java_lang_StackTraceElement::set_fileName(oop element, oop value) {
duke@435 3210 element->obj_field_put(fileName_offset, value);
duke@435 3211 }
duke@435 3212
duke@435 3213 void java_lang_StackTraceElement::set_declaringClass(oop element, oop value) {
duke@435 3214 element->obj_field_put(declaringClass_offset, value);
duke@435 3215 }
duke@435 3216
duke@435 3217 void java_lang_StackTraceElement::set_methodName(oop element, oop value) {
duke@435 3218 element->obj_field_put(methodName_offset, value);
duke@435 3219 }
duke@435 3220
duke@435 3221 void java_lang_StackTraceElement::set_lineNumber(oop element, int value) {
duke@435 3222 element->int_field_put(lineNumber_offset, value);
duke@435 3223 }
duke@435 3224
duke@435 3225
duke@435 3226 // Support for java Assertions - java_lang_AssertionStatusDirectives.
duke@435 3227
duke@435 3228 void java_lang_AssertionStatusDirectives::set_classes(oop o, oop val) {
duke@435 3229 o->obj_field_put(classes_offset, val);
duke@435 3230 }
duke@435 3231
duke@435 3232 void java_lang_AssertionStatusDirectives::set_classEnabled(oop o, oop val) {
duke@435 3233 o->obj_field_put(classEnabled_offset, val);
duke@435 3234 }
duke@435 3235
duke@435 3236 void java_lang_AssertionStatusDirectives::set_packages(oop o, oop val) {
duke@435 3237 o->obj_field_put(packages_offset, val);
duke@435 3238 }
duke@435 3239
duke@435 3240 void java_lang_AssertionStatusDirectives::set_packageEnabled(oop o, oop val) {
duke@435 3241 o->obj_field_put(packageEnabled_offset, val);
duke@435 3242 }
duke@435 3243
duke@435 3244 void java_lang_AssertionStatusDirectives::set_deflt(oop o, bool val) {
duke@435 3245 o->bool_field_put(deflt_offset, val);
duke@435 3246 }
duke@435 3247
duke@435 3248
duke@435 3249 // Support for intrinsification of java.nio.Buffer.checkIndex
duke@435 3250 int java_nio_Buffer::limit_offset() {
duke@435 3251 return _limit_offset;
duke@435 3252 }
duke@435 3253
duke@435 3254
duke@435 3255 void java_nio_Buffer::compute_offsets() {
coleenp@4037 3256 Klass* k = SystemDictionary::nio_Buffer_klass();
jrose@567 3257 assert(k != NULL, "must be loaded in 1.4+");
jrose@567 3258 compute_offset(_limit_offset, k, vmSymbols::limit_name(), vmSymbols::int_signature());
duke@435 3259 }
duke@435 3260
duke@435 3261 void java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(TRAPS) {
duke@435 3262 if (_owner_offset != 0) return;
duke@435 3263
duke@435 3264 assert(JDK_Version::is_gte_jdk16x_version(), "Must be JDK 1.6 or later");
duke@435 3265 SystemDictionary::load_abstract_ownable_synchronizer_klass(CHECK);
coleenp@4037 3266 Klass* k = SystemDictionary::abstract_ownable_synchronizer_klass();
jrose@567 3267 compute_offset(_owner_offset, k,
duke@435 3268 vmSymbols::exclusive_owner_thread_name(), vmSymbols::thread_signature());
duke@435 3269 }
duke@435 3270
duke@435 3271 oop java_util_concurrent_locks_AbstractOwnableSynchronizer::get_owner_threadObj(oop obj) {
duke@435 3272 assert(_owner_offset != 0, "Must be initialized");
duke@435 3273 return obj->obj_field(_owner_offset);
duke@435 3274 }
duke@435 3275
duke@435 3276 // Compute hard-coded offsets
duke@435 3277 // Invoked before SystemDictionary::initialize, so pre-loaded classes
duke@435 3278 // are not available to determine the offset_of_static_fields.
duke@435 3279 void JavaClasses::compute_hard_coded_offsets() {
coleenp@548 3280 const int x = heapOopSize;
kvn@600 3281 const int header = instanceOopDesc::base_offset_in_bytes();
duke@435 3282
duke@435 3283 // Throwable Class
duke@435 3284 java_lang_Throwable::backtrace_offset = java_lang_Throwable::hc_backtrace_offset * x + header;
duke@435 3285 java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header;
duke@435 3286 java_lang_Throwable::cause_offset = java_lang_Throwable::hc_cause_offset * x + header;
duke@435 3287 java_lang_Throwable::stackTrace_offset = java_lang_Throwable::hc_stackTrace_offset * x + header;
dholmes@3018 3288 java_lang_Throwable::static_unassigned_stacktrace_offset = java_lang_Throwable::hc_static_unassigned_stacktrace_offset * x;
duke@435 3289
duke@435 3290 // java_lang_boxing_object
kvn@600 3291 java_lang_boxing_object::value_offset = java_lang_boxing_object::hc_value_offset + header;
kvn@600 3292 java_lang_boxing_object::long_value_offset = align_size_up((java_lang_boxing_object::hc_value_offset + header), BytesPerLong);
duke@435 3293
duke@435 3294 // java_lang_ref_Reference:
duke@435 3295 java_lang_ref_Reference::referent_offset = java_lang_ref_Reference::hc_referent_offset * x + header;
duke@435 3296 java_lang_ref_Reference::queue_offset = java_lang_ref_Reference::hc_queue_offset * x + header;
duke@435 3297 java_lang_ref_Reference::next_offset = java_lang_ref_Reference::hc_next_offset * x + header;
duke@435 3298 java_lang_ref_Reference::discovered_offset = java_lang_ref_Reference::hc_discovered_offset * x + header;
duke@435 3299 java_lang_ref_Reference::static_lock_offset = java_lang_ref_Reference::hc_static_lock_offset * x;
duke@435 3300 java_lang_ref_Reference::static_pending_offset = java_lang_ref_Reference::hc_static_pending_offset * x;
duke@435 3301 // Artificial fields for java_lang_ref_Reference
duke@435 3302 // The first field is for the discovered field added in 1.4
duke@435 3303 java_lang_ref_Reference::number_of_fake_oop_fields = 1;
duke@435 3304
duke@435 3305 // java_lang_ref_SoftReference Class
kvn@600 3306 java_lang_ref_SoftReference::timestamp_offset = align_size_up((java_lang_ref_SoftReference::hc_timestamp_offset * x + header), BytesPerLong);
duke@435 3307 // Don't multiply static fields because they are always in wordSize units
duke@435 3308 java_lang_ref_SoftReference::static_clock_offset = java_lang_ref_SoftReference::hc_static_clock_offset * x;
duke@435 3309
duke@435 3310 // java_lang_ClassLoader
duke@435 3311 java_lang_ClassLoader::parent_offset = java_lang_ClassLoader::hc_parent_offset * x + header;
duke@435 3312
duke@435 3313 // java_lang_System
duke@435 3314 java_lang_System::static_in_offset = java_lang_System::hc_static_in_offset * x;
duke@435 3315 java_lang_System::static_out_offset = java_lang_System::hc_static_out_offset * x;
duke@435 3316 java_lang_System::static_err_offset = java_lang_System::hc_static_err_offset * x;
mullan@5242 3317 java_lang_System::static_security_offset = java_lang_System::hc_static_security_offset * x;
duke@435 3318
duke@435 3319 // java_lang_StackTraceElement
duke@435 3320 java_lang_StackTraceElement::declaringClass_offset = java_lang_StackTraceElement::hc_declaringClass_offset * x + header;
duke@435 3321 java_lang_StackTraceElement::methodName_offset = java_lang_StackTraceElement::hc_methodName_offset * x + header;
duke@435 3322 java_lang_StackTraceElement::fileName_offset = java_lang_StackTraceElement::hc_fileName_offset * x + header;
duke@435 3323 java_lang_StackTraceElement::lineNumber_offset = java_lang_StackTraceElement::hc_lineNumber_offset * x + header;
duke@435 3324 java_lang_AssertionStatusDirectives::classes_offset = java_lang_AssertionStatusDirectives::hc_classes_offset * x + header;
duke@435 3325 java_lang_AssertionStatusDirectives::classEnabled_offset = java_lang_AssertionStatusDirectives::hc_classEnabled_offset * x + header;
duke@435 3326 java_lang_AssertionStatusDirectives::packages_offset = java_lang_AssertionStatusDirectives::hc_packages_offset * x + header;
duke@435 3327 java_lang_AssertionStatusDirectives::packageEnabled_offset = java_lang_AssertionStatusDirectives::hc_packageEnabled_offset * x + header;
duke@435 3328 java_lang_AssertionStatusDirectives::deflt_offset = java_lang_AssertionStatusDirectives::hc_deflt_offset * x + header;
duke@435 3329
duke@435 3330 }
duke@435 3331
duke@435 3332
duke@435 3333 // Compute non-hard-coded field offsets of all the classes in this file
duke@435 3334 void JavaClasses::compute_offsets() {
never@3137 3335 // java_lang_Class::compute_offsets was called earlier in bootstrap
never@3137 3336 java_lang_ClassLoader::compute_offsets();
duke@435 3337 java_lang_Thread::compute_offsets();
duke@435 3338 java_lang_ThreadGroup::compute_offsets();
twisti@2698 3339 if (EnableInvokeDynamic) {
jrose@2639 3340 java_lang_invoke_MethodHandle::compute_offsets();
sspitsyn@5496 3341 java_lang_invoke_DirectMethodHandle::compute_offsets();
jrose@2639 3342 java_lang_invoke_MemberName::compute_offsets();
twisti@3969 3343 java_lang_invoke_LambdaForm::compute_offsets();
jrose@2639 3344 java_lang_invoke_MethodType::compute_offsets();
jrose@2639 3345 java_lang_invoke_CallSite::compute_offsets();
jrose@1161 3346 }
duke@435 3347 java_security_AccessControlContext::compute_offsets();
duke@435 3348 // Initialize reflection classes. The layouts of these classes
duke@435 3349 // changed with the new reflection implementation in JDK 1.4, and
duke@435 3350 // since the Universe doesn't know what JDK version it is until this
duke@435 3351 // point we defer computation of these offsets until now.
duke@435 3352 java_lang_reflect_AccessibleObject::compute_offsets();
duke@435 3353 java_lang_reflect_Method::compute_offsets();
duke@435 3354 java_lang_reflect_Constructor::compute_offsets();
duke@435 3355 java_lang_reflect_Field::compute_offsets();
duke@435 3356 if (JDK_Version::is_gte_jdk14x_version()) {
duke@435 3357 java_nio_Buffer::compute_offsets();
duke@435 3358 }
duke@435 3359 if (JDK_Version::is_gte_jdk15x_version()) {
duke@435 3360 sun_reflect_ConstantPool::compute_offsets();
duke@435 3361 sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets();
duke@435 3362 }
coleenp@4398 3363 if (JDK_Version::is_jdk18x_version())
coleenp@4398 3364 java_lang_reflect_Parameter::compute_offsets();
jrose@1145 3365
jrose@1145 3366 // generated interpreter code wants to know about the offsets we just computed:
jrose@1145 3367 AbstractAssembler::update_delayed_values();
duke@435 3368 }
duke@435 3369
duke@435 3370 #ifndef PRODUCT
duke@435 3371
duke@435 3372 // These functions exist to assert the validity of hard-coded field offsets to guard
duke@435 3373 // against changes in the class files
duke@435 3374
duke@435 3375 bool JavaClasses::check_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) {
duke@435 3376 EXCEPTION_MARK;
duke@435 3377 fieldDescriptor fd;
coleenp@2497 3378 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH);
coleenp@4037 3379 Klass* k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH);
duke@435 3380 instanceKlassHandle h_klass (THREAD, k);
coleenp@2497 3381 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH);
coleenp@2497 3382 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH);
coleenp@2497 3383 if (!h_klass->find_local_field(f_name, f_sig, &fd)) {
duke@435 3384 tty->print_cr("Nonstatic field %s.%s not found", klass_name, field_name);
duke@435 3385 return false;
duke@435 3386 }
duke@435 3387 if (fd.is_static()) {
duke@435 3388 tty->print_cr("Nonstatic field %s.%s appears to be static", klass_name, field_name);
duke@435 3389 return false;
duke@435 3390 }
duke@435 3391 if (fd.offset() == hardcoded_offset ) {
duke@435 3392 return true;
duke@435 3393 } else {
duke@435 3394 tty->print_cr("Offset of nonstatic field %s.%s is hardcoded as %d but should really be %d.",
duke@435 3395 klass_name, field_name, hardcoded_offset, fd.offset());
duke@435 3396 return false;
duke@435 3397 }
duke@435 3398 }
duke@435 3399
duke@435 3400
duke@435 3401 bool JavaClasses::check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) {
duke@435 3402 EXCEPTION_MARK;
duke@435 3403 fieldDescriptor fd;
coleenp@2497 3404 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH);
coleenp@4037 3405 Klass* k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH);
duke@435 3406 instanceKlassHandle h_klass (THREAD, k);
coleenp@2497 3407 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH);
coleenp@2497 3408 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH);
coleenp@2497 3409 if (!h_klass->find_local_field(f_name, f_sig, &fd)) {
duke@435 3410 tty->print_cr("Static field %s.%s not found", klass_name, field_name);
duke@435 3411 return false;
duke@435 3412 }
duke@435 3413 if (!fd.is_static()) {
duke@435 3414 tty->print_cr("Static field %s.%s appears to be nonstatic", klass_name, field_name);
duke@435 3415 return false;
duke@435 3416 }
coleenp@4047 3417 if (fd.offset() == hardcoded_offset + InstanceMirrorKlass::offset_of_static_fields()) {
duke@435 3418 return true;
duke@435 3419 } else {
coleenp@4047 3420 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 3421 return false;
duke@435 3422 }
duke@435 3423 }
duke@435 3424
duke@435 3425
jrose@567 3426 bool JavaClasses::check_constant(const char *klass_name, int hardcoded_constant, const char *field_name, const char* field_sig) {
jrose@567 3427 EXCEPTION_MARK;
jrose@567 3428 fieldDescriptor fd;
coleenp@2497 3429 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH);
coleenp@4037 3430 Klass* k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH);
jrose@567 3431 instanceKlassHandle h_klass (THREAD, k);
coleenp@2497 3432 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH);
coleenp@2497 3433 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH);
coleenp@2497 3434 if (!h_klass->find_local_field(f_name, f_sig, &fd)) {
jrose@567 3435 tty->print_cr("Static field %s.%s not found", klass_name, field_name);
jrose@567 3436 return false;
jrose@567 3437 }
jrose@567 3438 if (!fd.is_static() || !fd.has_initial_value()) {
jrose@567 3439 tty->print_cr("Static field %s.%s appears to be non-constant", klass_name, field_name);
jrose@567 3440 return false;
jrose@567 3441 }
jrose@567 3442 if (!fd.initial_value_tag().is_int()) {
jrose@567 3443 tty->print_cr("Static field %s.%s is not an int", klass_name, field_name);
jrose@567 3444 return false;
jrose@567 3445 }
jrose@567 3446 jint field_value = fd.int_initial_value();
jrose@567 3447 if (field_value == hardcoded_constant) {
jrose@567 3448 return true;
jrose@567 3449 } else {
jrose@567 3450 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 3451 return false;
jrose@567 3452 }
jrose@567 3453 }
jrose@567 3454
jrose@567 3455
duke@435 3456 // Check the hard-coded field offsets of all the classes in this file
duke@435 3457
duke@435 3458 void JavaClasses::check_offsets() {
duke@435 3459 bool valid = true;
coleenp@4037 3460 HandleMark hm;
duke@435 3461
duke@435 3462 #define CHECK_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \
duke@435 3463 valid &= check_offset(klass_name, cpp_klass_name :: field_name ## _offset, #field_name, field_sig)
duke@435 3464
kvn@600 3465 #define CHECK_LONG_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \
kvn@600 3466 valid &= check_offset(klass_name, cpp_klass_name :: long_ ## field_name ## _offset, #field_name, field_sig)
kvn@600 3467
duke@435 3468 #define CHECK_STATIC_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \
duke@435 3469 valid &= check_static_offset(klass_name, cpp_klass_name :: static_ ## field_name ## _offset, #field_name, field_sig)
duke@435 3470
jrose@567 3471 #define CHECK_CONSTANT(klass_name, cpp_klass_name, field_name, field_sig) \
jrose@567 3472 valid &= check_constant(klass_name, cpp_klass_name :: field_name, #field_name, field_sig)
jrose@567 3473
duke@435 3474 // java.lang.String
duke@435 3475
duke@435 3476 CHECK_OFFSET("java/lang/String", java_lang_String, value, "[C");
kvn@3760 3477 if (java_lang_String::has_offset_field()) {
kvn@3760 3478 CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I");
kvn@3760 3479 CHECK_OFFSET("java/lang/String", java_lang_String, count, "I");
kvn@3760 3480 }
kvn@3760 3481 if (java_lang_String::has_hash_field()) {
kvn@3760 3482 CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I");
kvn@3760 3483 }
duke@435 3484
duke@435 3485 // java.lang.Class
duke@435 3486
duke@435 3487 // Fake fields
duke@435 3488 // CHECK_OFFSET("java/lang/Class", java_lang_Class, klass); // %%% this needs to be checked
duke@435 3489 // CHECK_OFFSET("java/lang/Class", java_lang_Class, array_klass); // %%% this needs to be checked
duke@435 3490
duke@435 3491 // java.lang.Throwable
duke@435 3492
duke@435 3493 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, backtrace, "Ljava/lang/Object;");
duke@435 3494 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, detailMessage, "Ljava/lang/String;");
duke@435 3495 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, cause, "Ljava/lang/Throwable;");
duke@435 3496 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, stackTrace, "[Ljava/lang/StackTraceElement;");
duke@435 3497
duke@435 3498 // Boxed primitive objects (java_lang_boxing_object)
duke@435 3499
duke@435 3500 CHECK_OFFSET("java/lang/Boolean", java_lang_boxing_object, value, "Z");
duke@435 3501 CHECK_OFFSET("java/lang/Character", java_lang_boxing_object, value, "C");
duke@435 3502 CHECK_OFFSET("java/lang/Float", java_lang_boxing_object, value, "F");
kvn@600 3503 CHECK_LONG_OFFSET("java/lang/Double", java_lang_boxing_object, value, "D");
duke@435 3504 CHECK_OFFSET("java/lang/Byte", java_lang_boxing_object, value, "B");
duke@435 3505 CHECK_OFFSET("java/lang/Short", java_lang_boxing_object, value, "S");
duke@435 3506 CHECK_OFFSET("java/lang/Integer", java_lang_boxing_object, value, "I");
kvn@600 3507 CHECK_LONG_OFFSET("java/lang/Long", java_lang_boxing_object, value, "J");
duke@435 3508
duke@435 3509 // java.lang.ClassLoader
duke@435 3510
duke@435 3511 CHECK_OFFSET("java/lang/ClassLoader", java_lang_ClassLoader, parent, "Ljava/lang/ClassLoader;");
duke@435 3512
duke@435 3513 // java.lang.System
duke@435 3514
duke@435 3515 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, in, "Ljava/io/InputStream;");
duke@435 3516 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, out, "Ljava/io/PrintStream;");
duke@435 3517 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, err, "Ljava/io/PrintStream;");
mullan@5242 3518 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, security, "Ljava/lang/SecurityManager;");
duke@435 3519
duke@435 3520 // java.lang.StackTraceElement
duke@435 3521
duke@435 3522 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClass, "Ljava/lang/String;");
duke@435 3523 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, methodName, "Ljava/lang/String;");
duke@435 3524 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, fileName, "Ljava/lang/String;");
duke@435 3525 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, lineNumber, "I");
duke@435 3526
duke@435 3527 // java.lang.ref.Reference
duke@435 3528
duke@435 3529 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, referent, "Ljava/lang/Object;");
duke@435 3530 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, queue, "Ljava/lang/ref/ReferenceQueue;");
duke@435 3531 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, next, "Ljava/lang/ref/Reference;");
duke@435 3532 // Fake field
duke@435 3533 //CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, discovered, "Ljava/lang/ref/Reference;");
duke@435 3534 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, lock, "Ljava/lang/ref/Reference$Lock;");
duke@435 3535 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, pending, "Ljava/lang/ref/Reference;");
duke@435 3536
duke@435 3537 // java.lang.ref.SoftReference
duke@435 3538
duke@435 3539 CHECK_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, timestamp, "J");
duke@435 3540 CHECK_STATIC_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, clock, "J");
duke@435 3541
duke@435 3542 // java.lang.AssertionStatusDirectives
duke@435 3543 //
duke@435 3544 // The CheckAssertionStatusDirectives boolean can be removed from here and
duke@435 3545 // globals.hpp after the AssertionStatusDirectives class has been integrated
duke@435 3546 // into merlin "for some time." Without it, the vm will fail with early
duke@435 3547 // merlin builds.
duke@435 3548
duke@435 3549 if (CheckAssertionStatusDirectives && JDK_Version::is_gte_jdk14x_version()) {
duke@435 3550 const char* nm = "java/lang/AssertionStatusDirectives";
duke@435 3551 const char* sig = "[Ljava/lang/String;";
duke@435 3552 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classes, sig);
duke@435 3553 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classEnabled, "[Z");
duke@435 3554 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packages, sig);
duke@435 3555 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packageEnabled, "[Z");
duke@435 3556 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, deflt, "Z");
duke@435 3557 }
duke@435 3558
duke@435 3559 if (!valid) vm_exit_during_initialization("Hard-coded field offset verification failed");
duke@435 3560 }
duke@435 3561
duke@435 3562 #endif // PRODUCT
duke@435 3563
never@3137 3564 int InjectedField::compute_offset() {
coleenp@4037 3565 Klass* klass_oop = klass();
coleenp@4037 3566 for (AllFieldStream fs(InstanceKlass::cast(klass_oop)); !fs.done(); fs.next()) {
never@3137 3567 if (!may_be_java && !fs.access_flags().is_internal()) {
never@3137 3568 // Only look at injected fields
never@3137 3569 continue;
never@3137 3570 }
never@3137 3571 if (fs.name() == name() && fs.signature() == signature()) {
never@3137 3572 return fs.offset();
never@3137 3573 }
never@3137 3574 }
never@3137 3575 ResourceMark rm;
coleenp@4037 3576 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 3577 #ifndef PRODUCT
twisti@3969 3578 klass_oop->print();
twisti@3969 3579 tty->print_cr("all fields:");
coleenp@4037 3580 for (AllFieldStream fs(InstanceKlass::cast(klass_oop)); !fs.done(); fs.next()) {
twisti@3969 3581 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 3582 }
twisti@3969 3583 #endif //PRODUCT
never@3137 3584 fatal("Invalid layout of preloaded class");
never@3137 3585 return -1;
never@3137 3586 }
never@3137 3587
duke@435 3588 void javaClasses_init() {
duke@435 3589 JavaClasses::compute_offsets();
duke@435 3590 JavaClasses::check_offsets();
duke@435 3591 FilteredFieldsMap::initialize(); // must be done after computing offsets.
duke@435 3592 }

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