Mercurial > hg > truffle
annotate src/share/vm/classfile/javaClasses.cpp @ 3960:f08d439fab8c
7089790: integrate bsd-port changes
Reviewed-by: kvn, twisti, jrose
Contributed-by: Kurt Miller <kurt@intricatesoftware.com>, Greg Lewis <glewis@eyesbeyond.com>, Jung-uk Kim <jkim@freebsd.org>, Christos Zoulas <christos@zoulas.com>, Landon Fuller <landonf@plausible.coop>, The FreeBSD Foundation <board@freebsdfoundation.org>, Michael Franz <mvfranz@gmail.com>, Roger Hoover <rhoover@apple.com>, Alexander Strange <astrange@apple.com>
| author | never |
|---|---|
| date | Sun, 25 Sep 2011 16:03:29 -0700 |
| parents | 8ed53447f690 |
| children | e5928e7dab26 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "classfile/javaClasses.hpp" | |
| 27 #include "classfile/symbolTable.hpp" | |
| 28 #include "classfile/vmSymbols.hpp" | |
| 29 #include "code/debugInfo.hpp" | |
| 30 #include "code/pcDesc.hpp" | |
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31 #include "compiler/compilerOracle.hpp" |
| 1972 | 32 #include "interpreter/interpreter.hpp" |
| 33 #include "memory/oopFactory.hpp" | |
| 34 #include "memory/resourceArea.hpp" | |
| 35 #include "memory/universe.inline.hpp" | |
| 3938 | 36 #include "oops/fieldStreams.hpp" |
| 1972 | 37 #include "oops/instanceKlass.hpp" |
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38 #include "oops/instanceMirrorKlass.hpp" |
| 1972 | 39 #include "oops/klass.hpp" |
| 40 #include "oops/klassOop.hpp" | |
| 41 #include "oops/methodOop.hpp" | |
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42 #include "oops/symbol.hpp" |
| 1972 | 43 #include "oops/typeArrayOop.hpp" |
| 44 #include "runtime/fieldDescriptor.hpp" | |
| 45 #include "runtime/handles.inline.hpp" | |
| 46 #include "runtime/interfaceSupport.hpp" | |
| 47 #include "runtime/java.hpp" | |
| 48 #include "runtime/javaCalls.hpp" | |
| 49 #include "runtime/safepoint.hpp" | |
| 50 #include "runtime/vframe.hpp" | |
| 51 #include "utilities/preserveException.hpp" | |
| 52 #ifdef TARGET_OS_FAMILY_linux | |
| 53 # include "thread_linux.inline.hpp" | |
| 54 #endif | |
| 55 #ifdef TARGET_OS_FAMILY_solaris | |
| 56 # include "thread_solaris.inline.hpp" | |
| 57 #endif | |
| 58 #ifdef TARGET_OS_FAMILY_windows | |
| 59 # include "thread_windows.inline.hpp" | |
| 60 #endif | |
| 3960 | 61 #ifdef TARGET_OS_FAMILY_bsd |
| 62 # include "thread_bsd.inline.hpp" | |
| 63 #endif | |
| 0 | 64 |
| 3938 | 65 #define INJECTED_FIELD_COMPUTE_OFFSET(klass, name, signature, may_be_java) \ |
| 66 klass::_##name##_offset = JavaClasses::compute_injected_offset(JavaClasses::klass##_##name##_enum); | |
| 67 | |
| 68 #define DECLARE_INJECTED_FIELD(klass, name, signature, may_be_java) \ | |
| 69 { SystemDictionary::WK_KLASS_ENUM_NAME(klass), vmSymbols::VM_SYMBOL_ENUM_NAME(name##_name), vmSymbols::VM_SYMBOL_ENUM_NAME(signature), may_be_java }, | |
| 70 | |
| 71 InjectedField JavaClasses::_injected_fields[] = { | |
| 72 ALL_INJECTED_FIELDS(DECLARE_INJECTED_FIELD) | |
| 73 }; | |
| 74 | |
| 75 int JavaClasses::compute_injected_offset(InjectedFieldID id) { | |
| 76 return _injected_fields[id].compute_offset(); | |
| 77 } | |
| 78 | |
| 79 | |
| 80 InjectedField* JavaClasses::get_injected(Symbol* class_name, int* field_count) { | |
| 81 *field_count = 0; | |
| 82 | |
| 83 vmSymbols::SID sid = vmSymbols::find_sid(class_name); | |
| 84 if (sid == vmSymbols::NO_SID) { | |
| 85 // Only well known classes can inject fields | |
| 86 return NULL; | |
| 87 } | |
| 88 | |
| 89 int count = 0; | |
| 90 int start = -1; | |
| 91 | |
| 92 #define LOOKUP_INJECTED_FIELD(klass, name, signature, may_be_java) \ | |
| 93 if (sid == vmSymbols::VM_SYMBOL_ENUM_NAME(klass)) { \ | |
| 94 count++; \ | |
| 95 if (start == -1) start = klass##_##name##_enum; \ | |
| 96 } | |
| 97 ALL_INJECTED_FIELDS(LOOKUP_INJECTED_FIELD); | |
| 98 #undef LOOKUP_INJECTED_FIELD | |
| 99 | |
| 100 if (start != -1) { | |
| 101 *field_count = count; | |
| 102 return _injected_fields + start; | |
| 103 } | |
| 104 return NULL; | |
| 105 } | |
| 106 | |
| 107 | |
| 710 | 108 static bool find_field(instanceKlass* ik, |
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109 Symbol* name_symbol, Symbol* signature_symbol, |
| 710 | 110 fieldDescriptor* fd, |
| 111 bool allow_super = false) { | |
| 112 if (allow_super) | |
| 113 return ik->find_field(name_symbol, signature_symbol, fd) != NULL; | |
| 114 else | |
| 115 return ik->find_local_field(name_symbol, signature_symbol, fd); | |
| 116 } | |
| 117 | |
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118 // Helpful routine for computing field offsets at run time rather than hardcoding them |
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119 static void |
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120 compute_offset(int &dest_offset, |
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121 klassOop klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
| 710 | 122 bool allow_super = false) { |
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123 fieldDescriptor fd; |
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124 instanceKlass* ik = instanceKlass::cast(klass_oop); |
| 710 | 125 if (!find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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126 ResourceMark rm; |
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127 tty->print_cr("Invalid layout of %s at %s", ik->external_name(), name_symbol->as_C_string()); |
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128 fatal("Invalid layout of preloaded class"); |
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129 } |
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130 dest_offset = fd.offset(); |
| 0 | 131 } |
| 132 | |
| 133 // Same as above but for "optional" offsets that might not be present in certain JDK versions | |
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134 static void |
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135 compute_optional_offset(int& dest_offset, |
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136 klassOop klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
| 710 | 137 bool allow_super = false) { |
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138 fieldDescriptor fd; |
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139 instanceKlass* ik = instanceKlass::cast(klass_oop); |
| 710 | 140 if (find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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141 dest_offset = fd.offset(); |
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142 } |
| 0 | 143 } |
| 144 | |
| 710 | 145 |
| 0 | 146 Handle java_lang_String::basic_create(int length, bool tenured, TRAPS) { |
| 147 // Create the String object first, so there's a chance that the String | |
| 148 // and the char array it points to end up in the same cache line. | |
| 149 oop obj; | |
| 150 if (tenured) { | |
| 1142 | 151 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_permanent_instance(CHECK_NH); |
| 0 | 152 } else { |
| 1142 | 153 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_instance(CHECK_NH); |
| 0 | 154 } |
| 155 | |
| 156 // Create the char array. The String object must be handlized here | |
| 157 // because GC can happen as a result of the allocation attempt. | |
| 158 Handle h_obj(THREAD, obj); | |
| 159 typeArrayOop buffer; | |
| 160 if (tenured) { | |
| 161 buffer = oopFactory::new_permanent_charArray(length, CHECK_NH); | |
| 162 } else { | |
| 163 buffer = oopFactory::new_charArray(length, CHECK_NH); | |
| 164 } | |
| 165 | |
| 166 // Point the String at the char array | |
| 167 obj = h_obj(); | |
| 168 set_value(obj, buffer); | |
| 169 // No need to zero the offset, allocation zero'ed the entire String object | |
| 170 assert(offset(obj) == 0, "initial String offset should be zero"); | |
| 171 //set_offset(obj, 0); | |
| 172 set_count(obj, length); | |
| 173 | |
| 174 return h_obj; | |
| 175 } | |
| 176 | |
| 177 Handle java_lang_String::basic_create_from_unicode(jchar* unicode, int length, bool tenured, TRAPS) { | |
| 178 Handle h_obj = basic_create(length, tenured, CHECK_NH); | |
| 179 typeArrayOop buffer = value(h_obj()); | |
| 180 for (int index = 0; index < length; index++) { | |
| 181 buffer->char_at_put(index, unicode[index]); | |
| 182 } | |
| 183 return h_obj; | |
| 184 } | |
| 185 | |
| 186 Handle java_lang_String::create_from_unicode(jchar* unicode, int length, TRAPS) { | |
| 187 return basic_create_from_unicode(unicode, length, false, CHECK_NH); | |
| 188 } | |
| 189 | |
| 190 Handle java_lang_String::create_tenured_from_unicode(jchar* unicode, int length, TRAPS) { | |
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191 return basic_create_from_unicode(unicode, length, JavaObjectsInPerm, CHECK_NH); |
| 0 | 192 } |
| 193 | |
| 194 oop java_lang_String::create_oop_from_unicode(jchar* unicode, int length, TRAPS) { | |
| 195 Handle h_obj = basic_create_from_unicode(unicode, length, false, CHECK_0); | |
| 196 return h_obj(); | |
| 197 } | |
| 198 | |
| 199 Handle java_lang_String::create_from_str(const char* utf8_str, TRAPS) { | |
| 200 if (utf8_str == NULL) { | |
| 201 return Handle(); | |
| 202 } | |
| 203 int length = UTF8::unicode_length(utf8_str); | |
| 204 Handle h_obj = basic_create(length, false, CHECK_NH); | |
| 205 if (length > 0) { | |
| 206 UTF8::convert_to_unicode(utf8_str, value(h_obj())->char_at_addr(0), length); | |
| 207 } | |
| 208 return h_obj; | |
| 209 } | |
| 210 | |
| 211 oop java_lang_String::create_oop_from_str(const char* utf8_str, TRAPS) { | |
| 212 Handle h_obj = create_from_str(utf8_str, CHECK_0); | |
| 213 return h_obj(); | |
| 214 } | |
| 215 | |
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216 Handle java_lang_String::create_from_symbol(Symbol* symbol, TRAPS) { |
| 0 | 217 int length = UTF8::unicode_length((char*)symbol->bytes(), symbol->utf8_length()); |
| 218 Handle h_obj = basic_create(length, false, CHECK_NH); | |
| 219 if (length > 0) { | |
| 220 UTF8::convert_to_unicode((char*)symbol->bytes(), value(h_obj())->char_at_addr(0), length); | |
| 221 } | |
| 222 return h_obj; | |
| 223 } | |
| 224 | |
| 225 // Converts a C string to a Java String based on current encoding | |
| 226 Handle java_lang_String::create_from_platform_dependent_str(const char* str, TRAPS) { | |
| 227 assert(str != NULL, "bad arguments"); | |
| 228 | |
| 229 typedef jstring (*to_java_string_fn_t)(JNIEnv*, const char *); | |
| 230 static to_java_string_fn_t _to_java_string_fn = NULL; | |
| 231 | |
| 232 if (_to_java_string_fn == NULL) { | |
| 233 void *lib_handle = os::native_java_library(); | |
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234 _to_java_string_fn = CAST_TO_FN_PTR(to_java_string_fn_t, os::dll_lookup(lib_handle, "NewStringPlatform")); |
| 0 | 235 if (_to_java_string_fn == NULL) { |
| 236 fatal("NewStringPlatform missing"); | |
| 237 } | |
| 238 } | |
| 239 | |
| 240 jstring js = NULL; | |
| 241 { JavaThread* thread = (JavaThread*)THREAD; | |
| 242 assert(thread->is_Java_thread(), "must be java thread"); | |
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243 HandleMark hm(thread); |
| 0 | 244 ThreadToNativeFromVM ttn(thread); |
| 245 js = (_to_java_string_fn)(thread->jni_environment(), str); | |
| 246 } | |
| 247 return Handle(THREAD, JNIHandles::resolve(js)); | |
| 248 } | |
| 249 | |
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250 // Converts a Java String to a native C string that can be used for |
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251 // native OS calls. |
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252 char* java_lang_String::as_platform_dependent_str(Handle java_string, TRAPS) { |
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253 |
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254 typedef char* (*to_platform_string_fn_t)(JNIEnv*, jstring, bool*); |
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255 static to_platform_string_fn_t _to_platform_string_fn = NULL; |
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256 |
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257 if (_to_platform_string_fn == NULL) { |
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258 void *lib_handle = os::native_java_library(); |
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259 _to_platform_string_fn = CAST_TO_FN_PTR(to_platform_string_fn_t, os::dll_lookup(lib_handle, "GetStringPlatformChars")); |
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260 if (_to_platform_string_fn == NULL) { |
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261 fatal("GetStringPlatformChars missing"); |
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262 } |
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263 } |
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264 |
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265 char *native_platform_string; |
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266 { JavaThread* thread = (JavaThread*)THREAD; |
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267 assert(thread->is_Java_thread(), "must be java thread"); |
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268 JNIEnv *env = thread->jni_environment(); |
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269 jstring js = (jstring) JNIHandles::make_local(env, java_string()); |
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270 bool is_copy; |
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271 HandleMark hm(thread); |
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272 ThreadToNativeFromVM ttn(thread); |
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273 native_platform_string = (_to_platform_string_fn)(env, js, &is_copy); |
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274 assert(is_copy == JNI_TRUE, "is_copy value changed"); |
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275 JNIHandles::destroy_local(js); |
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276 } |
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277 return native_platform_string; |
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278 } |
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279 |
| 0 | 280 Handle java_lang_String::char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS) { |
| 281 oop obj = java_string(); | |
| 282 // Typical usage is to convert all '/' to '.' in string. | |
| 283 typeArrayOop value = java_lang_String::value(obj); | |
| 284 int offset = java_lang_String::offset(obj); | |
| 285 int length = java_lang_String::length(obj); | |
| 286 | |
| 287 // First check if any from_char exist | |
| 288 int index; // Declared outside, used later | |
| 289 for (index = 0; index < length; index++) { | |
| 290 if (value->char_at(index + offset) == from_char) { | |
| 291 break; | |
| 292 } | |
| 293 } | |
| 294 if (index == length) { | |
| 295 // No from_char, so do not copy. | |
| 296 return java_string; | |
| 297 } | |
| 298 | |
| 299 // Create new UNICODE buffer. Must handlize value because GC | |
| 300 // may happen during String and char array creation. | |
| 301 typeArrayHandle h_value(THREAD, value); | |
| 302 Handle string = basic_create(length, false, CHECK_NH); | |
| 303 | |
| 304 typeArrayOop from_buffer = h_value(); | |
| 305 typeArrayOop to_buffer = java_lang_String::value(string()); | |
| 306 | |
| 307 // Copy contents | |
| 308 for (index = 0; index < length; index++) { | |
| 309 jchar c = from_buffer->char_at(index + offset); | |
| 310 if (c == from_char) { | |
| 311 c = to_char; | |
| 312 } | |
| 313 to_buffer->char_at_put(index, c); | |
| 314 } | |
| 315 return string; | |
| 316 } | |
| 317 | |
| 318 jchar* java_lang_String::as_unicode_string(oop java_string, int& length) { | |
| 319 typeArrayOop value = java_lang_String::value(java_string); | |
| 320 int offset = java_lang_String::offset(java_string); | |
| 321 length = java_lang_String::length(java_string); | |
| 322 | |
| 323 jchar* result = NEW_RESOURCE_ARRAY(jchar, length); | |
| 324 for (int index = 0; index < length; index++) { | |
| 325 result[index] = value->char_at(index + offset); | |
| 326 } | |
| 327 return result; | |
| 328 } | |
| 329 | |
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330 unsigned int java_lang_String::hash_string(oop java_string) { |
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331 typeArrayOop value = java_lang_String::value(java_string); |
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332 int offset = java_lang_String::offset(java_string); |
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333 int length = java_lang_String::length(java_string); |
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334 |
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335 if (length == 0) return 0; |
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336 return hash_string(value->char_at_addr(offset), length); |
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337 } |
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338 |
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339 Symbol* java_lang_String::as_symbol(Handle java_string, TRAPS) { |
| 0 | 340 oop obj = java_string(); |
| 341 typeArrayOop value = java_lang_String::value(obj); | |
| 342 int offset = java_lang_String::offset(obj); | |
| 343 int length = java_lang_String::length(obj); | |
|
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344 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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345 Symbol* sym = SymbolTable::lookup_unicode(base, length, THREAD); |
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346 return sym; |
| 0 | 347 } |
| 348 | |
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349 Symbol* java_lang_String::as_symbol_or_null(oop java_string) { |
|
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350 typeArrayOop value = java_lang_String::value(java_string); |
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351 int offset = java_lang_String::offset(java_string); |
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352 int length = java_lang_String::length(java_string); |
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353 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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354 return SymbolTable::probe_unicode(base, length); |
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355 } |
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356 |
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357 |
| 0 | 358 int java_lang_String::utf8_length(oop java_string) { |
| 359 typeArrayOop value = java_lang_String::value(java_string); | |
| 360 int offset = java_lang_String::offset(java_string); | |
| 361 int length = java_lang_String::length(java_string); | |
| 362 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
| 363 return UNICODE::utf8_length(position, length); | |
| 364 } | |
| 365 | |
| 366 char* java_lang_String::as_utf8_string(oop java_string) { | |
| 367 typeArrayOop value = java_lang_String::value(java_string); | |
| 368 int offset = java_lang_String::offset(java_string); | |
| 369 int length = java_lang_String::length(java_string); | |
| 370 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
| 371 return UNICODE::as_utf8(position, length); | |
| 372 } | |
| 373 | |
|
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374 char* java_lang_String::as_utf8_string(oop java_string, char* buf, int buflen) { |
|
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375 typeArrayOop value = java_lang_String::value(java_string); |
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376 int offset = java_lang_String::offset(java_string); |
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377 int length = java_lang_String::length(java_string); |
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378 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); |
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379 return UNICODE::as_utf8(position, length, buf, buflen); |
|
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380 } |
|
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381 |
| 0 | 382 char* java_lang_String::as_utf8_string(oop java_string, int start, int len) { |
| 383 typeArrayOop value = java_lang_String::value(java_string); | |
| 384 int offset = java_lang_String::offset(java_string); | |
| 385 int length = java_lang_String::length(java_string); | |
| 386 assert(start + len <= length, "just checking"); | |
| 387 jchar* position = value->char_at_addr(offset + start); | |
| 388 return UNICODE::as_utf8(position, len); | |
| 389 } | |
| 390 | |
| 391 bool java_lang_String::equals(oop java_string, jchar* chars, int len) { | |
| 392 assert(SharedSkipVerify || | |
| 1142 | 393 java_string->klass() == SystemDictionary::String_klass(), |
| 0 | 394 "must be java_string"); |
| 395 typeArrayOop value = java_lang_String::value(java_string); | |
| 396 int offset = java_lang_String::offset(java_string); | |
| 397 int length = java_lang_String::length(java_string); | |
| 398 if (length != len) { | |
| 399 return false; | |
| 400 } | |
| 401 for (int i = 0; i < len; i++) { | |
| 402 if (value->char_at(i + offset) != chars[i]) { | |
| 403 return false; | |
| 404 } | |
| 405 } | |
| 406 return true; | |
| 407 } | |
| 408 | |
| 409 void java_lang_String::print(Handle java_string, outputStream* st) { | |
| 410 oop obj = java_string(); | |
| 1142 | 411 assert(obj->klass() == SystemDictionary::String_klass(), "must be java_string"); |
| 0 | 412 typeArrayOop value = java_lang_String::value(obj); |
| 413 int offset = java_lang_String::offset(obj); | |
| 414 int length = java_lang_String::length(obj); | |
| 415 | |
| 416 int end = MIN2(length, 100); | |
| 417 if (value == NULL) { | |
| 418 // This can happen if, e.g., printing a String | |
| 419 // object before its initializer has been called | |
| 420 st->print_cr("NULL"); | |
| 421 } else { | |
| 422 st->print("\""); | |
| 423 for (int index = 0; index < length; index++) { | |
| 424 st->print("%c", value->char_at(index + offset)); | |
| 425 } | |
| 426 st->print("\""); | |
| 427 } | |
| 428 } | |
| 429 | |
|
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430 static void initialize_static_field(fieldDescriptor* fd, TRAPS) { |
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431 Handle mirror (THREAD, fd->field_holder()->java_mirror()); |
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432 assert(mirror.not_null() && fd->is_static(), "just checking"); |
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433 if (fd->has_initial_value()) { |
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434 BasicType t = fd->field_type(); |
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435 switch (t) { |
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436 case T_BYTE: |
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437 mirror()->byte_field_put(fd->offset(), fd->int_initial_value()); |
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438 break; |
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439 case T_BOOLEAN: |
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440 mirror()->bool_field_put(fd->offset(), fd->int_initial_value()); |
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441 break; |
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442 case T_CHAR: |
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443 mirror()->char_field_put(fd->offset(), fd->int_initial_value()); |
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444 break; |
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445 case T_SHORT: |
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446 mirror()->short_field_put(fd->offset(), fd->int_initial_value()); |
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447 break; |
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448 case T_INT: |
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449 mirror()->int_field_put(fd->offset(), fd->int_initial_value()); |
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450 break; |
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451 case T_FLOAT: |
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452 mirror()->float_field_put(fd->offset(), fd->float_initial_value()); |
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453 break; |
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454 case T_DOUBLE: |
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455 mirror()->double_field_put(fd->offset(), fd->double_initial_value()); |
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456 break; |
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457 case T_LONG: |
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458 mirror()->long_field_put(fd->offset(), fd->long_initial_value()); |
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459 break; |
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460 case T_OBJECT: |
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461 { |
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462 #ifdef ASSERT |
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463 TempNewSymbol sym = SymbolTable::new_symbol("Ljava/lang/String;", CHECK); |
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464 assert(fd->signature() == sym, "just checking"); |
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465 #endif |
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466 oop string = fd->string_initial_value(CHECK); |
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467 mirror()->obj_field_put(fd->offset(), string); |
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468 } |
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469 break; |
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470 default: |
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471 THROW_MSG(vmSymbols::java_lang_ClassFormatError(), |
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472 "Illegal ConstantValue attribute in class file"); |
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473 } |
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474 } |
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475 } |
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476 |
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477 |
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478 void java_lang_Class::fixup_mirror(KlassHandle k, TRAPS) { |
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479 assert(instanceMirrorKlass::offset_of_static_fields() != 0, "must have been computed already"); |
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480 |
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481 if (k->oop_is_instance()) { |
| 3938 | 482 // During bootstrap, java.lang.Class wasn't loaded so static field |
| 483 // offsets were computed without the size added it. Go back and | |
| 484 // update all the static field offsets to included the size. | |
| 485 for (JavaFieldStream fs(instanceKlass::cast(k())); !fs.done(); fs.next()) { | |
| 486 if (fs.access_flags().is_static()) { | |
| 487 int real_offset = fs.offset() + instanceMirrorKlass::offset_of_static_fields(); | |
| 488 fs.set_offset(real_offset); | |
| 489 } | |
| 490 } | |
|
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491 } |
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492 create_mirror(k, CHECK); |
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493 } |
| 0 | 494 |
| 495 oop java_lang_Class::create_mirror(KlassHandle k, TRAPS) { | |
| 496 assert(k->java_mirror() == NULL, "should only assign mirror once"); | |
| 497 // Use this moment of initialization to cache modifier_flags also, | |
| 498 // to support Class.getModifiers(). Instance classes recalculate | |
| 499 // the cached flags after the class file is parsed, but before the | |
| 500 // class is put into the system dictionary. | |
| 501 int computed_modifiers = k->compute_modifier_flags(CHECK_0); | |
| 502 k->set_modifier_flags(computed_modifiers); | |
|
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503 if (SystemDictionary::Class_klass_loaded() && (k->oop_is_instance() || k->oop_is_javaArray())) { |
| 0 | 504 // Allocate mirror (java.lang.Class instance) |
|
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505 Handle mirror = instanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(k, CHECK_0); |
| 0 | 506 // Setup indirections |
| 3938 | 507 mirror->obj_field_put(_klass_offset, k()); |
| 0 | 508 k->set_java_mirror(mirror()); |
|
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509 |
|
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510 instanceMirrorKlass* mk = instanceMirrorKlass::cast(mirror->klass()); |
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511 java_lang_Class::set_oop_size(mirror(), mk->instance_size(k)); |
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512 java_lang_Class::set_static_oop_field_count(mirror(), mk->compute_static_oop_field_count(mirror())); |
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513 |
| 0 | 514 // It might also have a component mirror. This mirror must already exist. |
| 515 if (k->oop_is_javaArray()) { | |
| 516 Handle comp_mirror; | |
| 517 if (k->oop_is_typeArray()) { | |
| 518 BasicType type = typeArrayKlass::cast(k->as_klassOop())->element_type(); | |
| 519 comp_mirror = Universe::java_mirror(type); | |
| 520 assert(comp_mirror.not_null(), "must have primitive mirror"); | |
| 521 } else if (k->oop_is_objArray()) { | |
| 522 klassOop element_klass = objArrayKlass::cast(k->as_klassOop())->element_klass(); | |
| 523 if (element_klass != NULL | |
| 524 && (Klass::cast(element_klass)->oop_is_instance() || | |
| 525 Klass::cast(element_klass)->oop_is_javaArray())) { | |
| 526 comp_mirror = Klass::cast(element_klass)->java_mirror(); | |
| 527 assert(comp_mirror.not_null(), "must have element mirror"); | |
| 528 } | |
| 529 // else some object array internal to the VM, like systemObjArrayKlassObj | |
| 530 } | |
| 531 if (comp_mirror.not_null()) { | |
| 532 // Two-way link between the array klass and its component mirror: | |
| 533 arrayKlass::cast(k->as_klassOop())->set_component_mirror(comp_mirror()); | |
| 534 set_array_klass(comp_mirror(), k->as_klassOop()); | |
| 535 } | |
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536 } else if (k->oop_is_instance()) { |
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537 // Initialize static fields |
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538 instanceKlass::cast(k())->do_local_static_fields(&initialize_static_field, CHECK_NULL); |
| 0 | 539 } |
| 540 return mirror(); | |
| 541 } else { | |
| 542 return NULL; | |
| 543 } | |
| 544 } | |
| 545 | |
| 546 | |
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547 |
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548 int java_lang_Class::oop_size(oop java_class) { |
| 3938 | 549 assert(_oop_size_offset != 0, "must be set"); |
| 550 return java_class->int_field(_oop_size_offset); | |
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551 } |
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552 void java_lang_Class::set_oop_size(oop java_class, int size) { |
| 3938 | 553 assert(_oop_size_offset != 0, "must be set"); |
| 554 java_class->int_field_put(_oop_size_offset, size); | |
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555 } |
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556 int java_lang_Class::static_oop_field_count(oop java_class) { |
| 3938 | 557 assert(_static_oop_field_count_offset != 0, "must be set"); |
| 558 return java_class->int_field(_static_oop_field_count_offset); | |
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559 } |
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560 void java_lang_Class::set_static_oop_field_count(oop java_class, int size) { |
| 3938 | 561 assert(_static_oop_field_count_offset != 0, "must be set"); |
| 562 java_class->int_field_put(_static_oop_field_count_offset, size); | |
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563 } |
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564 |
| 0 | 565 oop java_lang_Class::create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS) { |
| 566 // This should be improved by adding a field at the Java level or by | |
| 567 // introducing a new VM klass (see comment in ClassFileParser) | |
|
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568 oop java_class = instanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance((oop)NULL, CHECK_0); |
| 0 | 569 if (type != T_VOID) { |
| 570 klassOop aklass = Universe::typeArrayKlassObj(type); | |
| 571 assert(aklass != NULL, "correct bootstrap"); | |
| 572 set_array_klass(java_class, aklass); | |
| 573 } | |
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574 instanceMirrorKlass* mk = instanceMirrorKlass::cast(SystemDictionary::Class_klass()); |
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575 java_lang_Class::set_oop_size(java_class, mk->instance_size(oop(NULL))); |
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576 java_lang_Class::set_static_oop_field_count(java_class, 0); |
| 0 | 577 return java_class; |
| 578 } | |
| 579 | |
| 580 | |
| 581 klassOop java_lang_Class::as_klassOop(oop java_class) { | |
| 582 //%note memory_2 | |
|
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583 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
| 3938 | 584 klassOop k = klassOop(java_class->obj_field(_klass_offset)); |
| 0 | 585 assert(k == NULL || k->is_klass(), "type check"); |
| 586 return k; | |
| 587 } | |
| 588 | |
| 589 | |
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590 void java_lang_Class::print_signature(oop java_class, outputStream* st) { |
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591 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
|
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592 Symbol* name = NULL; |
|
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593 bool is_instance = false; |
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594 if (is_primitive(java_class)) { |
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595 name = vmSymbols::type_signature(primitive_type(java_class)); |
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596 } else { |
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597 klassOop k = as_klassOop(java_class); |
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598 is_instance = Klass::cast(k)->oop_is_instance(); |
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599 name = Klass::cast(k)->name(); |
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600 } |
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601 if (name == NULL) { |
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602 st->print("<null>"); |
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603 return; |
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604 } |
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605 if (is_instance) st->print("L"); |
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606 st->write((char*) name->base(), (int) name->utf8_length()); |
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607 if (is_instance) st->print(";"); |
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608 } |
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609 |
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610 Symbol* java_lang_Class::as_signature(oop java_class, bool intern_if_not_found, TRAPS) { |
|
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611 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
|
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612 Symbol* name; |
|
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613 if (is_primitive(java_class)) { |
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614 name = vmSymbols::type_signature(primitive_type(java_class)); |
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615 // Because this can create a new symbol, the caller has to decrement |
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616 // the refcount, so make adjustment here and below for symbols returned |
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617 // that are not created or incremented due to a successful lookup. |
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618 name->increment_refcount(); |
|
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619 } else { |
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620 klassOop k = as_klassOop(java_class); |
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621 if (!Klass::cast(k)->oop_is_instance()) { |
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622 name = Klass::cast(k)->name(); |
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623 name->increment_refcount(); |
|
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624 } else { |
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625 ResourceMark rm; |
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626 const char* sigstr = Klass::cast(k)->signature_name(); |
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627 int siglen = (int) strlen(sigstr); |
|
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628 if (!intern_if_not_found) { |
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629 name = SymbolTable::probe(sigstr, siglen); |
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630 } else { |
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631 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
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632 } |
|
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633 } |
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634 } |
|
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635 return name; |
|
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636 } |
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637 |
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638 |
| 0 | 639 klassOop java_lang_Class::array_klass(oop java_class) { |
| 3938 | 640 klassOop k = klassOop(java_class->obj_field(_array_klass_offset)); |
| 0 | 641 assert(k == NULL || k->is_klass() && Klass::cast(k)->oop_is_javaArray(), "should be array klass"); |
| 642 return k; | |
| 643 } | |
| 644 | |
| 645 | |
| 646 void java_lang_Class::set_array_klass(oop java_class, klassOop klass) { | |
| 647 assert(klass->is_klass() && Klass::cast(klass)->oop_is_javaArray(), "should be array klass"); | |
| 3938 | 648 java_class->obj_field_put(_array_klass_offset, klass); |
| 0 | 649 } |
| 650 | |
| 651 | |
| 652 methodOop java_lang_Class::resolved_constructor(oop java_class) { | |
| 3938 | 653 oop constructor = java_class->obj_field(_resolved_constructor_offset); |
| 0 | 654 assert(constructor == NULL || constructor->is_method(), "should be method"); |
| 655 return methodOop(constructor); | |
| 656 } | |
| 657 | |
| 658 | |
| 659 void java_lang_Class::set_resolved_constructor(oop java_class, methodOop constructor) { | |
| 660 assert(constructor->is_method(), "should be method"); | |
| 3938 | 661 java_class->obj_field_put(_resolved_constructor_offset, constructor); |
| 0 | 662 } |
| 663 | |
| 664 | |
| 665 bool java_lang_Class::is_primitive(oop java_class) { | |
|
665
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666 // should assert: |
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667 //assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
| 3938 | 668 klassOop k = klassOop(java_class->obj_field(_klass_offset)); |
| 0 | 669 return k == NULL; |
| 670 } | |
| 671 | |
| 672 | |
| 673 BasicType java_lang_Class::primitive_type(oop java_class) { | |
| 674 assert(java_lang_Class::is_primitive(java_class), "just checking"); | |
| 3938 | 675 klassOop ak = klassOop(java_class->obj_field(_array_klass_offset)); |
| 0 | 676 BasicType type = T_VOID; |
| 677 if (ak != NULL) { | |
| 678 // Note: create_basic_type_mirror above initializes ak to a non-null value. | |
| 679 type = arrayKlass::cast(ak)->element_type(); | |
| 680 } else { | |
| 681 assert(java_class == Universe::void_mirror(), "only valid non-array primitive"); | |
| 682 } | |
| 683 assert(Universe::java_mirror(type) == java_class, "must be consistent"); | |
| 684 return type; | |
| 685 } | |
| 686 | |
|
665
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687 BasicType java_lang_Class::as_BasicType(oop java_class, klassOop* reference_klass) { |
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688 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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689 if (is_primitive(java_class)) { |
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690 if (reference_klass != NULL) |
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691 (*reference_klass) = NULL; |
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692 return primitive_type(java_class); |
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693 } else { |
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694 if (reference_klass != NULL) |
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695 (*reference_klass) = as_klassOop(java_class); |
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696 return T_OBJECT; |
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697 } |
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698 } |
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699 |
| 0 | 700 |
| 701 oop java_lang_Class::primitive_mirror(BasicType t) { | |
| 702 oop mirror = Universe::java_mirror(t); | |
| 1142 | 703 assert(mirror != NULL && mirror->is_a(SystemDictionary::Class_klass()), "must be a Class"); |
| 0 | 704 assert(java_lang_Class::is_primitive(mirror), "must be primitive"); |
| 705 return mirror; | |
| 706 } | |
| 707 | |
| 708 bool java_lang_Class::offsets_computed = false; | |
| 709 int java_lang_Class::classRedefinedCount_offset = -1; | |
| 710 | |
| 711 void java_lang_Class::compute_offsets() { | |
| 712 assert(!offsets_computed, "offsets should be initialized only once"); | |
| 713 offsets_computed = true; | |
| 714 | |
| 3938 | 715 klassOop klass_oop = SystemDictionary::Class_klass(); |
| 0 | 716 // The classRedefinedCount field is only present starting in 1.5, |
| 717 // so don't go fatal. | |
|
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718 compute_optional_offset(classRedefinedCount_offset, |
| 3938 | 719 klass_oop, vmSymbols::classRedefinedCount_name(), vmSymbols::int_signature()); |
| 720 | |
| 721 CLASS_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
| 0 | 722 } |
| 723 | |
| 724 int java_lang_Class::classRedefinedCount(oop the_class_mirror) { | |
| 725 if (!JDK_Version::is_gte_jdk15x_version() | |
| 726 || classRedefinedCount_offset == -1) { | |
| 727 // The classRedefinedCount field is only present starting in 1.5. | |
| 728 // If we don't have an offset for it then just return -1 as a marker. | |
| 729 return -1; | |
| 730 } | |
| 731 | |
| 732 return the_class_mirror->int_field(classRedefinedCount_offset); | |
| 733 } | |
| 734 | |
| 735 void java_lang_Class::set_classRedefinedCount(oop the_class_mirror, int value) { | |
| 736 if (!JDK_Version::is_gte_jdk15x_version() | |
| 737 || classRedefinedCount_offset == -1) { | |
| 738 // The classRedefinedCount field is only present starting in 1.5. | |
| 739 // If we don't have an offset for it then nothing to set. | |
| 740 return; | |
| 741 } | |
| 742 | |
| 743 the_class_mirror->int_field_put(classRedefinedCount_offset, value); | |
| 744 } | |
| 745 | |
| 746 | |
| 747 // Note: JDK1.1 and before had a privateInfo_offset field which was used for the | |
| 748 // platform thread structure, and a eetop offset which was used for thread | |
| 749 // local storage (and unused by the HotSpot VM). In JDK1.2 the two structures | |
| 750 // merged, so in the HotSpot VM we just use the eetop field for the thread | |
| 751 // instead of the privateInfo_offset. | |
| 752 // | |
| 753 // Note: The stackSize field is only present starting in 1.4. | |
| 754 | |
| 755 int java_lang_Thread::_name_offset = 0; | |
| 756 int java_lang_Thread::_group_offset = 0; | |
| 757 int java_lang_Thread::_contextClassLoader_offset = 0; | |
| 758 int java_lang_Thread::_inheritedAccessControlContext_offset = 0; | |
| 759 int java_lang_Thread::_priority_offset = 0; | |
| 760 int java_lang_Thread::_eetop_offset = 0; | |
| 761 int java_lang_Thread::_daemon_offset = 0; | |
| 762 int java_lang_Thread::_stillborn_offset = 0; | |
| 763 int java_lang_Thread::_stackSize_offset = 0; | |
| 764 int java_lang_Thread::_tid_offset = 0; | |
| 765 int java_lang_Thread::_thread_status_offset = 0; | |
| 766 int java_lang_Thread::_park_blocker_offset = 0; | |
| 767 int java_lang_Thread::_park_event_offset = 0 ; | |
| 768 | |
| 769 | |
| 770 void java_lang_Thread::compute_offsets() { | |
| 771 assert(_group_offset == 0, "offsets should be initialized only once"); | |
| 772 | |
| 1142 | 773 klassOop k = SystemDictionary::Thread_klass(); |
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774 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::char_array_signature()); |
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775 compute_offset(_group_offset, k, vmSymbols::group_name(), vmSymbols::threadgroup_signature()); |
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776 compute_offset(_contextClassLoader_offset, k, vmSymbols::contextClassLoader_name(), vmSymbols::classloader_signature()); |
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777 compute_offset(_inheritedAccessControlContext_offset, k, vmSymbols::inheritedAccessControlContext_name(), vmSymbols::accesscontrolcontext_signature()); |
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778 compute_offset(_priority_offset, k, vmSymbols::priority_name(), vmSymbols::int_signature()); |
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779 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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780 compute_offset(_eetop_offset, k, vmSymbols::eetop_name(), vmSymbols::long_signature()); |
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781 compute_offset(_stillborn_offset, k, vmSymbols::stillborn_name(), vmSymbols::bool_signature()); |
| 0 | 782 // The stackSize field is only present starting in 1.4, so don't go fatal. |
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783 compute_optional_offset(_stackSize_offset, k, vmSymbols::stackSize_name(), vmSymbols::long_signature()); |
| 0 | 784 // The tid and thread_status fields are only present starting in 1.5, so don't go fatal. |
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785 compute_optional_offset(_tid_offset, k, vmSymbols::thread_id_name(), vmSymbols::long_signature()); |
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786 compute_optional_offset(_thread_status_offset, k, vmSymbols::thread_status_name(), vmSymbols::int_signature()); |
| 0 | 787 // The parkBlocker field is only present starting in 1.6, so don't go fatal. |
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788 compute_optional_offset(_park_blocker_offset, k, vmSymbols::park_blocker_name(), vmSymbols::object_signature()); |
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789 compute_optional_offset(_park_event_offset, k, vmSymbols::park_event_name(), |
| 0 | 790 vmSymbols::long_signature()); |
| 791 } | |
| 792 | |
| 793 | |
| 794 JavaThread* java_lang_Thread::thread(oop java_thread) { | |
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795 return (JavaThread*)java_thread->address_field(_eetop_offset); |
| 0 | 796 } |
| 797 | |
| 798 | |
| 799 void java_lang_Thread::set_thread(oop java_thread, JavaThread* thread) { | |
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800 java_thread->address_field_put(_eetop_offset, (address)thread); |
| 0 | 801 } |
| 802 | |
| 803 | |
| 804 typeArrayOop java_lang_Thread::name(oop java_thread) { | |
| 805 oop name = java_thread->obj_field(_name_offset); | |
| 806 assert(name == NULL || (name->is_typeArray() && typeArrayKlass::cast(name->klass())->element_type() == T_CHAR), "just checking"); | |
| 807 return typeArrayOop(name); | |
| 808 } | |
| 809 | |
| 810 | |
| 811 void java_lang_Thread::set_name(oop java_thread, typeArrayOop name) { | |
| 812 assert(java_thread->obj_field(_name_offset) == NULL, "name should be NULL"); | |
| 813 java_thread->obj_field_put(_name_offset, name); | |
| 814 } | |
| 815 | |
| 816 | |
| 817 ThreadPriority java_lang_Thread::priority(oop java_thread) { | |
| 818 return (ThreadPriority)java_thread->int_field(_priority_offset); | |
| 819 } | |
| 820 | |
| 821 | |
| 822 void java_lang_Thread::set_priority(oop java_thread, ThreadPriority priority) { | |
| 823 java_thread->int_field_put(_priority_offset, priority); | |
| 824 } | |
| 825 | |
| 826 | |
| 827 oop java_lang_Thread::threadGroup(oop java_thread) { | |
| 828 return java_thread->obj_field(_group_offset); | |
| 829 } | |
| 830 | |
| 831 | |
| 832 bool java_lang_Thread::is_stillborn(oop java_thread) { | |
| 833 return java_thread->bool_field(_stillborn_offset) != 0; | |
| 834 } | |
| 835 | |
| 836 | |
| 837 // We never have reason to turn the stillborn bit off | |
| 838 void java_lang_Thread::set_stillborn(oop java_thread) { | |
| 839 java_thread->bool_field_put(_stillborn_offset, true); | |
| 840 } | |
| 841 | |
| 842 | |
| 843 bool java_lang_Thread::is_alive(oop java_thread) { | |
| 844 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
| 845 return (thr != NULL); | |
| 846 } | |
| 847 | |
| 848 | |
| 849 bool java_lang_Thread::is_daemon(oop java_thread) { | |
| 850 return java_thread->bool_field(_daemon_offset) != 0; | |
| 851 } | |
| 852 | |
| 853 | |
| 854 void java_lang_Thread::set_daemon(oop java_thread) { | |
| 855 java_thread->bool_field_put(_daemon_offset, true); | |
| 856 } | |
| 857 | |
| 858 oop java_lang_Thread::context_class_loader(oop java_thread) { | |
| 859 return java_thread->obj_field(_contextClassLoader_offset); | |
| 860 } | |
| 861 | |
| 862 oop java_lang_Thread::inherited_access_control_context(oop java_thread) { | |
| 863 return java_thread->obj_field(_inheritedAccessControlContext_offset); | |
| 864 } | |
| 865 | |
| 866 | |
| 867 jlong java_lang_Thread::stackSize(oop java_thread) { | |
| 868 // The stackSize field is only present starting in 1.4 | |
| 869 if (_stackSize_offset > 0) { | |
| 870 assert(JDK_Version::is_gte_jdk14x_version(), "sanity check"); | |
| 871 return java_thread->long_field(_stackSize_offset); | |
| 872 } else { | |
| 873 return 0; | |
| 874 } | |
| 875 } | |
| 876 | |
| 877 // Write the thread status value to threadStatus field in java.lang.Thread java class. | |
| 878 void java_lang_Thread::set_thread_status(oop java_thread, | |
| 879 java_lang_Thread::ThreadStatus status) { | |
| 880 assert(JavaThread::current()->thread_state() == _thread_in_vm, "Java Thread is not running in vm"); | |
| 881 // The threadStatus is only present starting in 1.5 | |
| 882 if (_thread_status_offset > 0) { | |
| 883 java_thread->int_field_put(_thread_status_offset, status); | |
| 884 } | |
| 885 } | |
| 886 | |
| 887 // Read thread status value from threadStatus field in java.lang.Thread java class. | |
| 888 java_lang_Thread::ThreadStatus java_lang_Thread::get_thread_status(oop java_thread) { | |
| 889 assert(Thread::current()->is_VM_thread() || | |
| 890 JavaThread::current()->thread_state() == _thread_in_vm, | |
| 891 "Java Thread is not running in vm"); | |
| 892 // The threadStatus is only present starting in 1.5 | |
| 893 if (_thread_status_offset > 0) { | |
| 894 return (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
| 895 } else { | |
| 896 // All we can easily figure out is if it is alive, but that is | |
| 897 // enough info for a valid unknown status. | |
| 898 // These aren't restricted to valid set ThreadStatus values, so | |
| 899 // use JVMTI values and cast. | |
| 900 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
| 901 if (thr == NULL) { | |
| 902 // the thread hasn't run yet or is in the process of exiting | |
| 903 return NEW; | |
| 904 } | |
| 905 return (java_lang_Thread::ThreadStatus)JVMTI_THREAD_STATE_ALIVE; | |
| 906 } | |
| 907 } | |
| 908 | |
| 909 | |
| 910 jlong java_lang_Thread::thread_id(oop java_thread) { | |
| 911 // The thread ID field is only present starting in 1.5 | |
| 912 if (_tid_offset > 0) { | |
| 913 return java_thread->long_field(_tid_offset); | |
| 914 } else { | |
| 915 return 0; | |
| 916 } | |
| 917 } | |
| 918 | |
| 919 oop java_lang_Thread::park_blocker(oop java_thread) { | |
| 242 | 920 assert(JDK_Version::current().supports_thread_park_blocker() && |
| 921 _park_blocker_offset != 0, "Must support parkBlocker field"); | |
| 0 | 922 |
| 923 if (_park_blocker_offset > 0) { | |
| 924 return java_thread->obj_field(_park_blocker_offset); | |
| 925 } | |
| 926 | |
| 927 return NULL; | |
| 928 } | |
| 929 | |
| 930 jlong java_lang_Thread::park_event(oop java_thread) { | |
| 931 if (_park_event_offset > 0) { | |
| 932 return java_thread->long_field(_park_event_offset); | |
| 933 } | |
| 934 return 0; | |
| 935 } | |
| 936 | |
| 937 bool java_lang_Thread::set_park_event(oop java_thread, jlong ptr) { | |
| 938 if (_park_event_offset > 0) { | |
| 939 java_thread->long_field_put(_park_event_offset, ptr); | |
| 940 return true; | |
| 941 } | |
| 942 return false; | |
| 943 } | |
| 944 | |
| 945 | |
| 946 const char* java_lang_Thread::thread_status_name(oop java_thread) { | |
| 947 assert(JDK_Version::is_gte_jdk15x_version() && _thread_status_offset != 0, "Must have thread status"); | |
| 948 ThreadStatus status = (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
| 949 switch (status) { | |
| 950 case NEW : return "NEW"; | |
| 951 case RUNNABLE : return "RUNNABLE"; | |
| 952 case SLEEPING : return "TIMED_WAITING (sleeping)"; | |
| 953 case IN_OBJECT_WAIT : return "WAITING (on object monitor)"; | |
| 954 case IN_OBJECT_WAIT_TIMED : return "TIMED_WAITING (on object monitor)"; | |
| 955 case PARKED : return "WAITING (parking)"; | |
| 956 case PARKED_TIMED : return "TIMED_WAITING (parking)"; | |
| 957 case BLOCKED_ON_MONITOR_ENTER : return "BLOCKED (on object monitor)"; | |
| 958 case TERMINATED : return "TERMINATED"; | |
| 959 default : return "UNKNOWN"; | |
| 960 }; | |
| 961 } | |
| 962 int java_lang_ThreadGroup::_parent_offset = 0; | |
| 963 int java_lang_ThreadGroup::_name_offset = 0; | |
| 964 int java_lang_ThreadGroup::_threads_offset = 0; | |
| 965 int java_lang_ThreadGroup::_groups_offset = 0; | |
| 966 int java_lang_ThreadGroup::_maxPriority_offset = 0; | |
| 967 int java_lang_ThreadGroup::_destroyed_offset = 0; | |
| 968 int java_lang_ThreadGroup::_daemon_offset = 0; | |
| 969 int java_lang_ThreadGroup::_vmAllowSuspension_offset = 0; | |
| 970 int java_lang_ThreadGroup::_nthreads_offset = 0; | |
| 971 int java_lang_ThreadGroup::_ngroups_offset = 0; | |
| 972 | |
| 973 oop java_lang_ThreadGroup::parent(oop java_thread_group) { | |
| 974 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 975 return java_thread_group->obj_field(_parent_offset); | |
| 976 } | |
| 977 | |
| 978 // ("name as oop" accessor is not necessary) | |
| 979 | |
| 980 typeArrayOop java_lang_ThreadGroup::name(oop java_thread_group) { | |
| 981 oop name = java_thread_group->obj_field(_name_offset); | |
| 982 // ThreadGroup.name can be null | |
| 983 return name == NULL ? (typeArrayOop)NULL : java_lang_String::value(name); | |
| 984 } | |
| 985 | |
| 986 int java_lang_ThreadGroup::nthreads(oop java_thread_group) { | |
| 987 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 988 return java_thread_group->int_field(_nthreads_offset); | |
| 989 } | |
| 990 | |
| 991 objArrayOop java_lang_ThreadGroup::threads(oop java_thread_group) { | |
| 992 oop threads = java_thread_group->obj_field(_threads_offset); | |
| 993 assert(threads != NULL, "threadgroups should have threads"); | |
| 994 assert(threads->is_objArray(), "just checking"); // Todo: Add better type checking code | |
| 995 return objArrayOop(threads); | |
| 996 } | |
| 997 | |
| 998 int java_lang_ThreadGroup::ngroups(oop java_thread_group) { | |
| 999 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1000 return java_thread_group->int_field(_ngroups_offset); | |
| 1001 } | |
| 1002 | |
| 1003 objArrayOop java_lang_ThreadGroup::groups(oop java_thread_group) { | |
| 1004 oop groups = java_thread_group->obj_field(_groups_offset); | |
| 1005 assert(groups == NULL || groups->is_objArray(), "just checking"); // Todo: Add better type checking code | |
| 1006 return objArrayOop(groups); | |
| 1007 } | |
| 1008 | |
| 1009 ThreadPriority java_lang_ThreadGroup::maxPriority(oop java_thread_group) { | |
| 1010 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1011 return (ThreadPriority) java_thread_group->int_field(_maxPriority_offset); | |
| 1012 } | |
| 1013 | |
| 1014 bool java_lang_ThreadGroup::is_destroyed(oop java_thread_group) { | |
| 1015 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1016 return java_thread_group->bool_field(_destroyed_offset) != 0; | |
| 1017 } | |
| 1018 | |
| 1019 bool java_lang_ThreadGroup::is_daemon(oop java_thread_group) { | |
| 1020 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1021 return java_thread_group->bool_field(_daemon_offset) != 0; | |
| 1022 } | |
| 1023 | |
| 1024 bool java_lang_ThreadGroup::is_vmAllowSuspension(oop java_thread_group) { | |
| 1025 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1026 return java_thread_group->bool_field(_vmAllowSuspension_offset) != 0; | |
| 1027 } | |
| 1028 | |
| 1029 void java_lang_ThreadGroup::compute_offsets() { | |
| 1030 assert(_parent_offset == 0, "offsets should be initialized only once"); | |
| 1031 | |
| 1142 | 1032 klassOop k = SystemDictionary::ThreadGroup_klass(); |
| 0 | 1033 |
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1034 compute_offset(_parent_offset, k, vmSymbols::parent_name(), vmSymbols::threadgroup_signature()); |
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1035 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1036 compute_offset(_threads_offset, k, vmSymbols::threads_name(), vmSymbols::thread_array_signature()); |
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1037 compute_offset(_groups_offset, k, vmSymbols::groups_name(), vmSymbols::threadgroup_array_signature()); |
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1038 compute_offset(_maxPriority_offset, k, vmSymbols::maxPriority_name(), vmSymbols::int_signature()); |
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1039 compute_offset(_destroyed_offset, k, vmSymbols::destroyed_name(), vmSymbols::bool_signature()); |
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1040 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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1041 compute_offset(_vmAllowSuspension_offset, k, vmSymbols::vmAllowSuspension_name(), vmSymbols::bool_signature()); |
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1042 compute_offset(_nthreads_offset, k, vmSymbols::nthreads_name(), vmSymbols::int_signature()); |
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1043 compute_offset(_ngroups_offset, k, vmSymbols::ngroups_name(), vmSymbols::int_signature()); |
| 0 | 1044 } |
| 1045 | |
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1046 oop java_lang_Throwable::unassigned_stacktrace() { |
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1047 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Throwable_klass()); |
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1048 address addr = ik->static_field_addr(static_unassigned_stacktrace_offset); |
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1049 if (UseCompressedOops) { |
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1050 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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1051 } else { |
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1052 return oopDesc::load_decode_heap_oop((oop*)addr); |
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1053 } |
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1054 } |
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1055 |
| 0 | 1056 oop java_lang_Throwable::backtrace(oop throwable) { |
| 1057 return throwable->obj_field_acquire(backtrace_offset); | |
| 1058 } | |
| 1059 | |
| 1060 | |
| 1061 void java_lang_Throwable::set_backtrace(oop throwable, oop value) { | |
| 1062 throwable->release_obj_field_put(backtrace_offset, value); | |
| 1063 } | |
| 1064 | |
| 1065 | |
| 1066 oop java_lang_Throwable::message(oop throwable) { | |
| 1067 return throwable->obj_field(detailMessage_offset); | |
| 1068 } | |
| 1069 | |
| 1070 | |
| 1071 oop java_lang_Throwable::message(Handle throwable) { | |
| 1072 return throwable->obj_field(detailMessage_offset); | |
| 1073 } | |
| 1074 | |
| 1075 | |
| 1076 void java_lang_Throwable::set_message(oop throwable, oop value) { | |
| 1077 throwable->obj_field_put(detailMessage_offset, value); | |
| 1078 } | |
| 1079 | |
| 1080 | |
|
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1081 void java_lang_Throwable::set_stacktrace(oop throwable, oop st_element_array) { |
|
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1082 throwable->obj_field_put(stackTrace_offset, st_element_array); |
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1083 } |
|
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1084 |
| 0 | 1085 void java_lang_Throwable::clear_stacktrace(oop throwable) { |
| 1086 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
|
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1087 set_stacktrace(throwable, NULL); |
| 0 | 1088 } |
| 1089 | |
| 1090 | |
| 1091 void java_lang_Throwable::print(oop throwable, outputStream* st) { | |
| 1092 ResourceMark rm; | |
| 1093 klassOop k = throwable->klass(); | |
| 1094 assert(k != NULL, "just checking"); | |
| 1095 st->print("%s", instanceKlass::cast(k)->external_name()); | |
| 1096 oop msg = message(throwable); | |
| 1097 if (msg != NULL) { | |
| 1098 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
| 1099 } | |
| 1100 } | |
| 1101 | |
| 1102 | |
| 1103 void java_lang_Throwable::print(Handle throwable, outputStream* st) { | |
| 1104 ResourceMark rm; | |
| 1105 klassOop k = throwable->klass(); | |
| 1106 assert(k != NULL, "just checking"); | |
| 1107 st->print("%s", instanceKlass::cast(k)->external_name()); | |
| 1108 oop msg = message(throwable); | |
| 1109 if (msg != NULL) { | |
| 1110 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
| 1111 } | |
| 1112 } | |
| 1113 | |
| 1114 // Print stack trace element to resource allocated buffer | |
| 1115 char* java_lang_Throwable::print_stack_element_to_buffer(methodOop method, int bci) { | |
| 1116 // Get strings and string lengths | |
| 1117 instanceKlass* klass = instanceKlass::cast(method->method_holder()); | |
| 1118 const char* klass_name = klass->external_name(); | |
| 1119 int buf_len = (int)strlen(klass_name); | |
| 1120 char* source_file_name; | |
| 1121 if (klass->source_file_name() == NULL) { | |
| 1122 source_file_name = NULL; | |
| 1123 } else { | |
| 1124 source_file_name = klass->source_file_name()->as_C_string(); | |
| 1125 buf_len += (int)strlen(source_file_name); | |
| 1126 } | |
| 1127 char* method_name = method->name()->as_C_string(); | |
| 1128 buf_len += (int)strlen(method_name); | |
| 1129 | |
| 1130 // Allocate temporary buffer with extra space for formatting and line number | |
| 1131 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64); | |
| 1132 | |
| 1133 // Print stack trace line in buffer | |
| 1134 sprintf(buf, "\tat %s.%s", klass_name, method_name); | |
| 1135 if (method->is_native()) { | |
| 1136 strcat(buf, "(Native Method)"); | |
| 1137 } else { | |
| 1138 int line_number = method->line_number_from_bci(bci); | |
| 1139 if (source_file_name != NULL && (line_number != -1)) { | |
| 1140 // Sourcename and linenumber | |
| 1141 sprintf(buf + (int)strlen(buf), "(%s:%d)", source_file_name, line_number); | |
| 1142 } else if (source_file_name != NULL) { | |
| 1143 // Just sourcename | |
| 1144 sprintf(buf + (int)strlen(buf), "(%s)", source_file_name); | |
| 1145 } else { | |
| 1146 // Neither soucename and linenumber | |
| 1147 sprintf(buf + (int)strlen(buf), "(Unknown Source)"); | |
| 1148 } | |
| 1149 nmethod* nm = method->code(); | |
| 1150 if (WizardMode && nm != NULL) { | |
| 3960 | 1151 sprintf(buf + (int)strlen(buf), "(nmethod " INTPTR_FORMAT ")", (intptr_t)nm); |
| 0 | 1152 } |
| 1153 } | |
| 1154 | |
| 1155 return buf; | |
| 1156 } | |
| 1157 | |
| 1158 | |
| 1159 void java_lang_Throwable::print_stack_element(Handle stream, methodOop method, int bci) { | |
| 1160 ResourceMark rm; | |
| 1161 char* buf = print_stack_element_to_buffer(method, bci); | |
| 1162 print_to_stream(stream, buf); | |
| 1163 } | |
| 1164 | |
| 1165 void java_lang_Throwable::print_stack_element(outputStream *st, methodOop method, int bci) { | |
| 1166 ResourceMark rm; | |
| 1167 char* buf = print_stack_element_to_buffer(method, bci); | |
| 1168 st->print_cr("%s", buf); | |
| 1169 } | |
| 1170 | |
| 1171 void java_lang_Throwable::print_to_stream(Handle stream, const char* str) { | |
| 1172 if (stream.is_null()) { | |
| 1173 tty->print_cr("%s", str); | |
| 1174 } else { | |
| 1175 EXCEPTION_MARK; | |
| 1176 JavaValue result(T_VOID); | |
| 1177 Handle arg (THREAD, oopFactory::new_charArray(str, THREAD)); | |
| 1178 if (!HAS_PENDING_EXCEPTION) { | |
| 1179 JavaCalls::call_virtual(&result, | |
| 1180 stream, | |
| 1181 KlassHandle(THREAD, stream->klass()), | |
|
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1182 vmSymbols::println_name(), |
|
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1183 vmSymbols::char_array_void_signature(), |
| 0 | 1184 arg, |
| 1185 THREAD); | |
| 1186 } | |
| 1187 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
| 1188 if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION; | |
| 1189 } | |
| 1190 | |
| 1191 } | |
| 1192 | |
| 1193 | |
| 1194 const char* java_lang_Throwable::no_stack_trace_message() { | |
| 1195 return "\t<<no stack trace available>>"; | |
| 1196 } | |
| 1197 | |
| 1198 | |
| 1199 // Currently used only for exceptions occurring during startup | |
| 1200 void java_lang_Throwable::print_stack_trace(oop throwable, outputStream* st) { | |
| 1201 Thread *THREAD = Thread::current(); | |
| 1202 Handle h_throwable(THREAD, throwable); | |
| 1203 while (h_throwable.not_null()) { | |
| 1204 objArrayHandle result (THREAD, objArrayOop(backtrace(h_throwable()))); | |
| 1205 if (result.is_null()) { | |
| 1206 st->print_cr(no_stack_trace_message()); | |
| 1207 return; | |
| 1208 } | |
| 1209 | |
| 1210 while (result.not_null()) { | |
| 1211 objArrayHandle methods (THREAD, | |
| 1212 objArrayOop(result->obj_at(trace_methods_offset))); | |
| 1213 typeArrayHandle bcis (THREAD, | |
| 1214 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
| 1215 | |
| 1216 if (methods.is_null() || bcis.is_null()) { | |
| 1217 st->print_cr(no_stack_trace_message()); | |
| 1218 return; | |
| 1219 } | |
| 1220 | |
| 1221 int length = methods()->length(); | |
| 1222 for (int index = 0; index < length; index++) { | |
| 1223 methodOop method = methodOop(methods()->obj_at(index)); | |
| 1224 if (method == NULL) goto handle_cause; | |
| 1225 int bci = bcis->ushort_at(index); | |
| 1226 print_stack_element(st, method, bci); | |
| 1227 } | |
| 1228 result = objArrayHandle(THREAD, objArrayOop(result->obj_at(trace_next_offset))); | |
| 1229 } | |
| 1230 handle_cause: | |
| 1231 { | |
| 1232 EXCEPTION_MARK; | |
| 1233 JavaValue result(T_OBJECT); | |
| 1234 JavaCalls::call_virtual(&result, | |
| 1235 h_throwable, | |
| 1236 KlassHandle(THREAD, h_throwable->klass()), | |
|
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|
1237 vmSymbols::getCause_name(), |
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1238 vmSymbols::void_throwable_signature(), |
| 0 | 1239 THREAD); |
| 1240 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
| 1241 if (HAS_PENDING_EXCEPTION) { | |
| 1242 CLEAR_PENDING_EXCEPTION; | |
| 1243 h_throwable = Handle(); | |
| 1244 } else { | |
| 1245 h_throwable = Handle(THREAD, (oop) result.get_jobject()); | |
| 1246 if (h_throwable.not_null()) { | |
| 1247 st->print("Caused by: "); | |
| 1248 print(h_throwable, st); | |
| 1249 st->cr(); | |
| 1250 } | |
| 1251 } | |
| 1252 } | |
| 1253 } | |
| 1254 } | |
| 1255 | |
| 1256 | |
| 1257 void java_lang_Throwable::print_stack_trace(oop throwable, oop print_stream) { | |
| 1258 // Note: this is no longer used in Merlin, but we support it for compatibility. | |
| 1259 Thread *thread = Thread::current(); | |
| 1260 Handle stream(thread, print_stream); | |
| 1261 objArrayHandle result (thread, objArrayOop(backtrace(throwable))); | |
| 1262 if (result.is_null()) { | |
| 1263 print_to_stream(stream, no_stack_trace_message()); | |
| 1264 return; | |
| 1265 } | |
| 1266 | |
| 1267 while (result.not_null()) { | |
| 1268 objArrayHandle methods (thread, | |
| 1269 objArrayOop(result->obj_at(trace_methods_offset))); | |
| 1270 typeArrayHandle bcis (thread, | |
| 1271 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
| 1272 | |
| 1273 if (methods.is_null() || bcis.is_null()) { | |
| 1274 print_to_stream(stream, no_stack_trace_message()); | |
| 1275 return; | |
| 1276 } | |
| 1277 | |
| 1278 int length = methods()->length(); | |
| 1279 for (int index = 0; index < length; index++) { | |
| 1280 methodOop method = methodOop(methods()->obj_at(index)); | |
| 1281 if (method == NULL) return; | |
| 1282 int bci = bcis->ushort_at(index); | |
| 1283 print_stack_element(stream, method, bci); | |
| 1284 } | |
| 1285 result = objArrayHandle(thread, objArrayOop(result->obj_at(trace_next_offset))); | |
| 1286 } | |
| 1287 } | |
| 1288 | |
| 1289 // This class provides a simple wrapper over the internal structure of | |
| 1290 // exception backtrace to insulate users of the backtrace from needing | |
| 1291 // to know what it looks like. | |
| 1292 class BacktraceBuilder: public StackObj { | |
| 1293 private: | |
| 1294 Handle _backtrace; | |
| 1295 objArrayOop _head; | |
| 1296 objArrayOop _methods; | |
| 1297 typeArrayOop _bcis; | |
| 1298 int _index; | |
| 1299 No_Safepoint_Verifier _nsv; | |
| 1300 | |
| 1301 public: | |
| 1302 | |
| 1303 enum { | |
| 1304 trace_methods_offset = java_lang_Throwable::trace_methods_offset, | |
| 1305 trace_bcis_offset = java_lang_Throwable::trace_bcis_offset, | |
| 1306 trace_next_offset = java_lang_Throwable::trace_next_offset, | |
| 1307 trace_size = java_lang_Throwable::trace_size, | |
| 1308 trace_chunk_size = java_lang_Throwable::trace_chunk_size | |
| 1309 }; | |
| 1310 | |
| 1311 // constructor for new backtrace | |
|
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1312 BacktraceBuilder(TRAPS): _methods(NULL), _bcis(NULL), _head(NULL) { |
| 0 | 1313 expand(CHECK); |
| 1314 _backtrace = _head; | |
| 1315 _index = 0; | |
| 1316 } | |
| 1317 | |
| 1318 void expand(TRAPS) { | |
| 1319 objArrayHandle old_head(THREAD, _head); | |
| 1320 Pause_No_Safepoint_Verifier pnsv(&_nsv); | |
| 1321 | |
| 1322 objArrayOop head = oopFactory::new_objectArray(trace_size, CHECK); | |
| 1323 objArrayHandle new_head(THREAD, head); | |
| 1324 | |
| 1325 objArrayOop methods = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
| 1326 objArrayHandle new_methods(THREAD, methods); | |
| 1327 | |
| 1328 typeArrayOop bcis = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
| 1329 typeArrayHandle new_bcis(THREAD, bcis); | |
| 1330 | |
| 1331 if (!old_head.is_null()) { | |
| 1332 old_head->obj_at_put(trace_next_offset, new_head()); | |
| 1333 } | |
| 1334 new_head->obj_at_put(trace_methods_offset, new_methods()); | |
| 1335 new_head->obj_at_put(trace_bcis_offset, new_bcis()); | |
| 1336 | |
| 1337 _head = new_head(); | |
| 1338 _methods = new_methods(); | |
| 1339 _bcis = new_bcis(); | |
| 1340 _index = 0; | |
| 1341 } | |
| 1342 | |
| 1343 oop backtrace() { | |
| 1344 return _backtrace(); | |
| 1345 } | |
| 1346 | |
| 1347 inline void push(methodOop method, short bci, TRAPS) { | |
| 1348 if (_index >= trace_chunk_size) { | |
| 1349 methodHandle mhandle(THREAD, method); | |
| 1350 expand(CHECK); | |
| 1351 method = mhandle(); | |
| 1352 } | |
| 1353 | |
|
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1354 _methods->obj_at_put(_index, method); |
| 0 | 1355 _bcis->ushort_at_put(_index, bci); |
| 1356 _index++; | |
| 1357 } | |
| 1358 | |
| 1359 methodOop current_method() { | |
| 1360 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
| 1361 return methodOop(_methods->obj_at(_index)); | |
| 1362 } | |
| 1363 | |
| 1364 jushort current_bci() { | |
| 1365 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
| 1366 return _bcis->ushort_at(_index); | |
| 1367 } | |
| 1368 }; | |
| 1369 | |
| 1370 | |
|
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1371 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method, TRAPS) { |
| 0 | 1372 if (!StackTraceInThrowable) return; |
| 1373 ResourceMark rm(THREAD); | |
| 1374 | |
| 1375 // Start out by clearing the backtrace for this object, in case the VM | |
| 1376 // runs out of memory while allocating the stack trace | |
| 1377 set_backtrace(throwable(), NULL); | |
| 1378 if (JDK_Version::is_gte_jdk14x_version()) { | |
| 1379 // New since 1.4, clear lazily constructed Java level stacktrace if | |
| 1380 // refilling occurs | |
|
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1381 // This is unnecessary in 1.7+ but harmless |
| 0 | 1382 clear_stacktrace(throwable()); |
| 1383 } | |
| 1384 | |
| 1385 int max_depth = MaxJavaStackTraceDepth; | |
| 1386 JavaThread* thread = (JavaThread*)THREAD; | |
| 1387 BacktraceBuilder bt(CHECK); | |
| 1388 | |
|
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1389 // If there is no Java frame just return the method that was being called |
|
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1390 // with bci 0 |
|
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1391 if (!thread->has_last_Java_frame()) { |
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1392 if (max_depth >= 1 && method() != NULL) { |
|
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1393 bt.push(method(), 0, CHECK); |
|
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1394 set_backtrace(throwable(), bt.backtrace()); |
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1395 } |
|
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1396 return; |
|
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1397 } |
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1398 |
| 0 | 1399 // Instead of using vframe directly, this version of fill_in_stack_trace |
| 1400 // basically handles everything by hand. This significantly improved the | |
| 1401 // speed of this method call up to 28.5% on Solaris sparc. 27.1% on Windows. | |
| 1402 // See bug 6333838 for more details. | |
| 1403 // The "ASSERT" here is to verify this method generates the exactly same stack | |
| 1404 // trace as utilizing vframe. | |
| 1405 #ifdef ASSERT | |
| 1406 vframeStream st(thread); | |
| 1407 methodHandle st_method(THREAD, st.method()); | |
| 1408 #endif | |
| 1409 int total_count = 0; | |
| 1410 RegisterMap map(thread, false); | |
| 1411 int decode_offset = 0; | |
| 1412 nmethod* nm = NULL; | |
| 1413 bool skip_fillInStackTrace_check = false; | |
| 1414 bool skip_throwableInit_check = false; | |
| 1415 | |
| 1416 for (frame fr = thread->last_frame(); max_depth != total_count;) { | |
| 1417 methodOop method = NULL; | |
| 1418 int bci = 0; | |
| 1419 | |
| 1420 // Compiled java method case. | |
| 1421 if (decode_offset != 0) { | |
| 1422 DebugInfoReadStream stream(nm, decode_offset); | |
| 1423 decode_offset = stream.read_int(); | |
| 1424 method = (methodOop)nm->oop_at(stream.read_int()); | |
|
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1425 bci = stream.read_bci(); |
| 0 | 1426 } else { |
| 1427 if (fr.is_first_frame()) break; | |
| 1428 address pc = fr.pc(); | |
| 1429 if (fr.is_interpreted_frame()) { | |
| 1430 intptr_t bcx = fr.interpreter_frame_bcx(); | |
| 1431 method = fr.interpreter_frame_method(); | |
| 1432 bci = fr.is_bci(bcx) ? bcx : method->bci_from((address)bcx); | |
| 1433 fr = fr.sender(&map); | |
| 1434 } else { | |
| 1435 CodeBlob* cb = fr.cb(); | |
| 1436 // HMMM QQQ might be nice to have frame return nm as NULL if cb is non-NULL | |
| 1437 // but non nmethod | |
| 1438 fr = fr.sender(&map); | |
| 1439 if (cb == NULL || !cb->is_nmethod()) { | |
| 1440 continue; | |
| 1441 } | |
| 1442 nm = (nmethod*)cb; | |
| 1443 if (nm->method()->is_native()) { | |
| 1444 method = nm->method(); | |
| 1445 bci = 0; | |
| 1446 } else { | |
| 1447 PcDesc* pd = nm->pc_desc_at(pc); | |
| 1448 decode_offset = pd->scope_decode_offset(); | |
| 1449 // if decode_offset is not equal to 0, it will execute the | |
| 1450 // "compiled java method case" at the beginning of the loop. | |
| 1451 continue; | |
| 1452 } | |
| 1453 } | |
| 1454 } | |
| 1455 #ifdef ASSERT | |
|
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1456 assert(st_method() == method && st.bci() == bci, |
|
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1457 "Wrong stack trace"); |
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1458 st.next(); |
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1459 // vframeStream::method isn't GC-safe so store off a copy |
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1460 // of the methodOop in case we GC. |
|
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1461 if (!st.at_end()) { |
|
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1462 st_method = st.method(); |
|
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1463 } |
| 0 | 1464 #endif |
|
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1465 |
|
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1466 // the format of the stacktrace will be: |
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1467 // - 1 or more fillInStackTrace frames for the exception class (skipped) |
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1468 // - 0 or more <init> methods for the exception class (skipped) |
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1469 // - rest of the stack |
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1470 |
| 0 | 1471 if (!skip_fillInStackTrace_check) { |
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1472 if ((method->name() == vmSymbols::fillInStackTrace_name() || |
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1473 method->name() == vmSymbols::fillInStackTrace0_name()) && |
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1474 throwable->is_a(method->method_holder())) { |
| 0 | 1475 continue; |
| 1476 } | |
|
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1477 else { |
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1478 skip_fillInStackTrace_check = true; // gone past them all |
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1479 } |
| 0 | 1480 } |
| 1481 if (!skip_throwableInit_check) { | |
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1482 assert(skip_fillInStackTrace_check, "logic error in backtrace filtering"); |
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1483 |
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1484 // skip <init> methods of the exception class and superclasses |
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1485 // This is simlar to classic VM. |
| 0 | 1486 if (method->name() == vmSymbols::object_initializer_name() && |
| 1487 throwable->is_a(method->method_holder())) { | |
| 1488 continue; | |
| 1489 } else { | |
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1490 // there are none or we've seen them all - either way stop checking |
| 0 | 1491 skip_throwableInit_check = true; |
| 1492 } | |
| 1493 } | |
| 1494 bt.push(method, bci, CHECK); | |
| 1495 total_count++; | |
| 1496 } | |
| 1497 | |
| 1498 // Put completed stack trace into throwable object | |
| 1499 set_backtrace(throwable(), bt.backtrace()); | |
| 1500 } | |
| 1501 | |
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1502 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method) { |
| 0 | 1503 // No-op if stack trace is disabled |
| 1504 if (!StackTraceInThrowable) { | |
| 1505 return; | |
| 1506 } | |
| 1507 | |
| 1508 // Disable stack traces for some preallocated out of memory errors | |
| 1509 if (!Universe::should_fill_in_stack_trace(throwable)) { | |
| 1510 return; | |
| 1511 } | |
| 1512 | |
| 1513 PRESERVE_EXCEPTION_MARK; | |
| 1514 | |
| 1515 JavaThread* thread = JavaThread::active(); | |
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1516 fill_in_stack_trace(throwable, method, thread); |
| 0 | 1517 // ignore exceptions thrown during stack trace filling |
| 1518 CLEAR_PENDING_EXCEPTION; | |
| 1519 } | |
| 1520 | |
| 1521 void java_lang_Throwable::allocate_backtrace(Handle throwable, TRAPS) { | |
| 1522 // Allocate stack trace - backtrace is created but not filled in | |
| 1523 | |
| 1524 // No-op if stack trace is disabled | |
| 1525 if (!StackTraceInThrowable) return; | |
| 1526 | |
| 1527 objArrayOop h_oop = oopFactory::new_objectArray(trace_size, CHECK); | |
| 1528 objArrayHandle backtrace (THREAD, h_oop); | |
| 1529 objArrayOop m_oop = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
| 1530 objArrayHandle methods (THREAD, m_oop); | |
| 1531 typeArrayOop b = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
| 1532 typeArrayHandle bcis(THREAD, b); | |
| 1533 | |
| 1534 // backtrace has space for one chunk (next is NULL) | |
| 1535 backtrace->obj_at_put(trace_methods_offset, methods()); | |
| 1536 backtrace->obj_at_put(trace_bcis_offset, bcis()); | |
| 1537 set_backtrace(throwable(), backtrace()); | |
| 1538 } | |
| 1539 | |
| 1540 | |
| 1541 void java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(Handle throwable) { | |
| 1542 // Fill in stack trace into preallocated backtrace (no GC) | |
| 1543 | |
| 1544 // No-op if stack trace is disabled | |
| 1545 if (!StackTraceInThrowable) return; | |
| 1546 | |
| 1142 | 1547 assert(throwable->is_a(SystemDictionary::Throwable_klass()), "sanity check"); |
| 0 | 1548 |
| 1549 oop backtrace = java_lang_Throwable::backtrace(throwable()); | |
| 1550 assert(backtrace != NULL, "backtrace not preallocated"); | |
| 1551 | |
| 1552 oop m = objArrayOop(backtrace)->obj_at(trace_methods_offset); | |
| 1553 objArrayOop methods = objArrayOop(m); | |
| 1554 assert(methods != NULL && methods->length() > 0, "method array not preallocated"); | |
| 1555 | |
| 1556 oop b = objArrayOop(backtrace)->obj_at(trace_bcis_offset); | |
| 1557 typeArrayOop bcis = typeArrayOop(b); | |
| 1558 assert(bcis != NULL, "bci array not preallocated"); | |
| 1559 | |
| 1560 assert(methods->length() == bcis->length(), "method and bci arrays should match"); | |
| 1561 | |
| 1562 JavaThread* thread = JavaThread::current(); | |
| 1563 ResourceMark rm(thread); | |
| 1564 vframeStream st(thread); | |
| 1565 | |
| 1566 // Unlike fill_in_stack_trace we do not skip fillInStackTrace or throwable init | |
| 1567 // methods as preallocated errors aren't created by "java" code. | |
| 1568 | |
| 1569 // fill in as much stack trace as possible | |
| 1570 int max_chunks = MIN2(methods->length(), (int)MaxJavaStackTraceDepth); | |
| 1571 int chunk_count = 0; | |
| 1572 | |
| 1573 for (;!st.at_end(); st.next()) { | |
| 1574 // add element | |
| 1575 bcis->ushort_at_put(chunk_count, st.bci()); | |
| 1576 methods->obj_at_put(chunk_count, st.method()); | |
| 1577 | |
| 1578 chunk_count++; | |
| 1579 | |
| 1580 // Bail-out for deep stacks | |
| 1581 if (chunk_count >= max_chunks) break; | |
| 1582 } | |
|
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1583 |
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1584 // For Java 7+ we support the Throwable immutability protocol defined for Java 7. This support |
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1585 // was missing in 7u0 so in 7u0 there is a workaround in the Throwable class. That workaround |
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1586 // can be removed in a JDK using this JVM version |
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1587 if (JDK_Version::is_gte_jdk17x_version()) { |
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1588 java_lang_Throwable::set_stacktrace(throwable(), java_lang_Throwable::unassigned_stacktrace()); |
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1589 assert(java_lang_Throwable::unassigned_stacktrace() != NULL, "not initialized"); |
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1590 } |
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1591 |
| 0 | 1592 } |
| 1593 | |
| 1594 | |
| 1595 int java_lang_Throwable::get_stack_trace_depth(oop throwable, TRAPS) { | |
| 1596 if (throwable == NULL) { | |
| 1597 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
| 1598 } | |
| 1599 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
| 1600 int depth = 0; | |
| 1601 if (chunk != NULL) { | |
| 1602 // Iterate over chunks and count full ones | |
| 1603 while (true) { | |
| 1604 objArrayOop next = objArrayOop(chunk->obj_at(trace_next_offset)); | |
| 1605 if (next == NULL) break; | |
| 1606 depth += trace_chunk_size; | |
| 1607 chunk = next; | |
| 1608 } | |
| 1609 assert(chunk != NULL && chunk->obj_at(trace_next_offset) == NULL, "sanity check"); | |
| 1610 // Count element in remaining partial chunk | |
| 1611 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
| 1612 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
| 1613 assert(methods != NULL && bcis != NULL, "sanity check"); | |
| 1614 for (int i = 0; i < methods->length(); i++) { | |
| 1615 if (methods->obj_at(i) == NULL) break; | |
| 1616 depth++; | |
| 1617 } | |
| 1618 } | |
| 1619 return depth; | |
| 1620 } | |
| 1621 | |
| 1622 | |
| 1623 oop java_lang_Throwable::get_stack_trace_element(oop throwable, int index, TRAPS) { | |
| 1624 if (throwable == NULL) { | |
| 1625 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
| 1626 } | |
| 1627 if (index < 0) { | |
| 1628 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1629 } | |
| 1630 // Compute how many chunks to skip and index into actual chunk | |
| 1631 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
| 1632 int skip_chunks = index / trace_chunk_size; | |
| 1633 int chunk_index = index % trace_chunk_size; | |
| 1634 while (chunk != NULL && skip_chunks > 0) { | |
| 1635 chunk = objArrayOop(chunk->obj_at(trace_next_offset)); | |
| 1636 skip_chunks--; | |
| 1637 } | |
| 1638 if (chunk == NULL) { | |
| 1639 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1640 } | |
| 1641 // Get method,bci from chunk | |
| 1642 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
| 1643 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
| 1644 assert(methods != NULL && bcis != NULL, "sanity check"); | |
| 1645 methodHandle method(THREAD, methodOop(methods->obj_at(chunk_index))); | |
| 1646 int bci = bcis->ushort_at(chunk_index); | |
| 1647 // Chunk can be partial full | |
| 1648 if (method.is_null()) { | |
| 1649 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1650 } | |
| 1651 | |
| 1652 oop element = java_lang_StackTraceElement::create(method, bci, CHECK_0); | |
| 1653 return element; | |
| 1654 } | |
| 1655 | |
| 1656 oop java_lang_StackTraceElement::create(methodHandle method, int bci, TRAPS) { | |
| 1657 // SystemDictionary::stackTraceElement_klass() will be null for pre-1.4 JDKs | |
| 1658 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
| 1659 | |
| 1660 // Allocate java.lang.StackTraceElement instance | |
| 1142 | 1661 klassOop k = SystemDictionary::StackTraceElement_klass(); |
|
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1662 assert(k != NULL, "must be loaded in 1.4+"); |
| 0 | 1663 instanceKlassHandle ik (THREAD, k); |
| 1664 if (ik->should_be_initialized()) { | |
| 1665 ik->initialize(CHECK_0); | |
| 1666 } | |
| 1667 | |
| 1668 Handle element = ik->allocate_instance_handle(CHECK_0); | |
| 1669 // Fill in class name | |
| 1670 ResourceMark rm(THREAD); | |
| 1671 const char* str = instanceKlass::cast(method->method_holder())->external_name(); | |
| 1672 oop classname = StringTable::intern((char*) str, CHECK_0); | |
| 1673 java_lang_StackTraceElement::set_declaringClass(element(), classname); | |
| 1674 // Fill in method name | |
| 1675 oop methodname = StringTable::intern(method->name(), CHECK_0); | |
| 1676 java_lang_StackTraceElement::set_methodName(element(), methodname); | |
| 1677 // Fill in source file name | |
|
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1678 Symbol* source = instanceKlass::cast(method->method_holder())->source_file_name(); |
| 0 | 1679 oop filename = StringTable::intern(source, CHECK_0); |
| 1680 java_lang_StackTraceElement::set_fileName(element(), filename); | |
| 1681 // File in source line number | |
| 1682 int line_number; | |
| 1683 if (method->is_native()) { | |
| 1684 // Negative value different from -1 below, enabling Java code in | |
| 1685 // class java.lang.StackTraceElement to distinguish "native" from | |
| 1686 // "no LineNumberTable". | |
| 1687 line_number = -2; | |
| 1688 } else { | |
| 1689 // Returns -1 if no LineNumberTable, and otherwise actual line number | |
| 1690 line_number = method->line_number_from_bci(bci); | |
| 1691 } | |
| 1692 java_lang_StackTraceElement::set_lineNumber(element(), line_number); | |
| 1693 | |
| 1694 return element(); | |
| 1695 } | |
| 1696 | |
| 1697 | |
| 1698 void java_lang_reflect_AccessibleObject::compute_offsets() { | |
| 1142 | 1699 klassOop k = SystemDictionary::reflect_AccessibleObject_klass(); |
|
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1700 compute_offset(override_offset, k, vmSymbols::override_name(), vmSymbols::bool_signature()); |
| 0 | 1701 } |
| 1702 | |
| 1703 jboolean java_lang_reflect_AccessibleObject::override(oop reflect) { | |
| 1704 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1705 return (jboolean) reflect->bool_field(override_offset); | |
| 1706 } | |
| 1707 | |
| 1708 void java_lang_reflect_AccessibleObject::set_override(oop reflect, jboolean value) { | |
| 1709 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1710 reflect->bool_field_put(override_offset, (int) value); | |
| 1711 } | |
| 1712 | |
| 1713 void java_lang_reflect_Method::compute_offsets() { | |
| 1142 | 1714 klassOop k = SystemDictionary::reflect_Method_klass(); |
|
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1715 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1716 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1717 compute_offset(returnType_offset, k, vmSymbols::returnType_name(), vmSymbols::class_signature()); |
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1718 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1719 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1720 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1721 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 1722 // The generic signature and annotations fields are only present in 1.5 |
| 1723 signature_offset = -1; | |
| 1724 annotations_offset = -1; | |
| 1725 parameter_annotations_offset = -1; | |
| 1726 annotation_default_offset = -1; | |
|
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1727 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1728 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1729 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
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1730 compute_optional_offset(annotation_default_offset, k, vmSymbols::annotation_default_name(), vmSymbols::byte_array_signature()); |
| 0 | 1731 } |
| 1732 | |
| 1733 Handle java_lang_reflect_Method::create(TRAPS) { | |
| 1734 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1142 | 1735 klassOop klass = SystemDictionary::reflect_Method_klass(); |
| 0 | 1736 // This class is eagerly initialized during VM initialization, since we keep a refence |
| 1737 // to one of the methods | |
| 1738 assert(instanceKlass::cast(klass)->is_initialized(), "must be initialized"); | |
| 1739 return instanceKlass::cast(klass)->allocate_instance_handle(CHECK_NH); | |
| 1740 } | |
| 1741 | |
| 1742 oop java_lang_reflect_Method::clazz(oop reflect) { | |
| 1743 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1744 return reflect->obj_field(clazz_offset); | |
| 1745 } | |
| 1746 | |
| 1747 void java_lang_reflect_Method::set_clazz(oop reflect, oop value) { | |
| 1748 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1749 reflect->obj_field_put(clazz_offset, value); | |
| 1750 } | |
| 1751 | |
| 1752 int java_lang_reflect_Method::slot(oop reflect) { | |
| 1753 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1754 return reflect->int_field(slot_offset); | |
| 1755 } | |
| 1756 | |
| 1757 void java_lang_reflect_Method::set_slot(oop reflect, int value) { | |
| 1758 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1759 reflect->int_field_put(slot_offset, value); | |
| 1760 } | |
| 1761 | |
| 1762 oop java_lang_reflect_Method::name(oop method) { | |
| 1763 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1764 return method->obj_field(name_offset); | |
| 1765 } | |
| 1766 | |
| 1767 void java_lang_reflect_Method::set_name(oop method, oop value) { | |
| 1768 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1769 method->obj_field_put(name_offset, value); | |
| 1770 } | |
| 1771 | |
| 1772 oop java_lang_reflect_Method::return_type(oop method) { | |
| 1773 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1774 return method->obj_field(returnType_offset); | |
| 1775 } | |
| 1776 | |
| 1777 void java_lang_reflect_Method::set_return_type(oop method, oop value) { | |
| 1778 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1779 method->obj_field_put(returnType_offset, value); | |
| 1780 } | |
| 1781 | |
| 1782 oop java_lang_reflect_Method::parameter_types(oop method) { | |
| 1783 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1784 return method->obj_field(parameterTypes_offset); | |
| 1785 } | |
| 1786 | |
| 1787 void java_lang_reflect_Method::set_parameter_types(oop method, oop value) { | |
| 1788 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1789 method->obj_field_put(parameterTypes_offset, value); | |
| 1790 } | |
| 1791 | |
| 1792 oop java_lang_reflect_Method::exception_types(oop method) { | |
| 1793 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1794 return method->obj_field(exceptionTypes_offset); | |
| 1795 } | |
| 1796 | |
| 1797 void java_lang_reflect_Method::set_exception_types(oop method, oop value) { | |
| 1798 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1799 method->obj_field_put(exceptionTypes_offset, value); | |
| 1800 } | |
| 1801 | |
| 1802 int java_lang_reflect_Method::modifiers(oop method) { | |
| 1803 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1804 return method->int_field(modifiers_offset); | |
| 1805 } | |
| 1806 | |
| 1807 void java_lang_reflect_Method::set_modifiers(oop method, int value) { | |
| 1808 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1809 method->int_field_put(modifiers_offset, value); | |
| 1810 } | |
| 1811 | |
| 1812 bool java_lang_reflect_Method::has_signature_field() { | |
| 1813 return (signature_offset >= 0); | |
| 1814 } | |
| 1815 | |
| 1816 oop java_lang_reflect_Method::signature(oop method) { | |
| 1817 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1818 assert(has_signature_field(), "signature field must be present"); | |
| 1819 return method->obj_field(signature_offset); | |
| 1820 } | |
| 1821 | |
| 1822 void java_lang_reflect_Method::set_signature(oop method, oop value) { | |
| 1823 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1824 assert(has_signature_field(), "signature field must be present"); | |
| 1825 method->obj_field_put(signature_offset, value); | |
| 1826 } | |
| 1827 | |
| 1828 bool java_lang_reflect_Method::has_annotations_field() { | |
| 1829 return (annotations_offset >= 0); | |
| 1830 } | |
| 1831 | |
| 1832 oop java_lang_reflect_Method::annotations(oop method) { | |
| 1833 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1834 assert(has_annotations_field(), "annotations field must be present"); | |
| 1835 return method->obj_field(annotations_offset); | |
| 1836 } | |
| 1837 | |
| 1838 void java_lang_reflect_Method::set_annotations(oop method, oop value) { | |
| 1839 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1840 assert(has_annotations_field(), "annotations field must be present"); | |
| 1841 method->obj_field_put(annotations_offset, value); | |
| 1842 } | |
| 1843 | |
| 1844 bool java_lang_reflect_Method::has_parameter_annotations_field() { | |
| 1845 return (parameter_annotations_offset >= 0); | |
| 1846 } | |
| 1847 | |
| 1848 oop java_lang_reflect_Method::parameter_annotations(oop method) { | |
| 1849 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1850 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1851 return method->obj_field(parameter_annotations_offset); | |
| 1852 } | |
| 1853 | |
| 1854 void java_lang_reflect_Method::set_parameter_annotations(oop method, oop value) { | |
| 1855 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1856 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1857 method->obj_field_put(parameter_annotations_offset, value); | |
| 1858 } | |
| 1859 | |
| 1860 bool java_lang_reflect_Method::has_annotation_default_field() { | |
| 1861 return (annotation_default_offset >= 0); | |
| 1862 } | |
| 1863 | |
| 1864 oop java_lang_reflect_Method::annotation_default(oop method) { | |
| 1865 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1866 assert(has_annotation_default_field(), "annotation default field must be present"); | |
| 1867 return method->obj_field(annotation_default_offset); | |
| 1868 } | |
| 1869 | |
| 1870 void java_lang_reflect_Method::set_annotation_default(oop method, oop value) { | |
| 1871 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1872 assert(has_annotation_default_field(), "annotation default field must be present"); | |
| 1873 method->obj_field_put(annotation_default_offset, value); | |
| 1874 } | |
| 1875 | |
| 1876 void java_lang_reflect_Constructor::compute_offsets() { | |
| 1142 | 1877 klassOop k = SystemDictionary::reflect_Constructor_klass(); |
|
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1878 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1879 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1880 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1881 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1882 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 1883 // The generic signature and annotations fields are only present in 1.5 |
| 1884 signature_offset = -1; | |
| 1885 annotations_offset = -1; | |
| 1886 parameter_annotations_offset = -1; | |
|
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1887 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1888 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1889 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
| 0 | 1890 } |
| 1891 | |
| 1892 Handle java_lang_reflect_Constructor::create(TRAPS) { | |
| 1893 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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1894 Symbol* name = vmSymbols::java_lang_reflect_Constructor(); |
| 0 | 1895 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
| 1896 instanceKlassHandle klass (THREAD, k); | |
| 1897 // Ensure it is initialized | |
| 1898 klass->initialize(CHECK_NH); | |
| 1899 return klass->allocate_instance_handle(CHECK_NH); | |
| 1900 } | |
| 1901 | |
| 1902 oop java_lang_reflect_Constructor::clazz(oop reflect) { | |
| 1903 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1904 return reflect->obj_field(clazz_offset); | |
| 1905 } | |
| 1906 | |
| 1907 void java_lang_reflect_Constructor::set_clazz(oop reflect, oop value) { | |
| 1908 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1909 reflect->obj_field_put(clazz_offset, value); | |
| 1910 } | |
| 1911 | |
| 1912 oop java_lang_reflect_Constructor::parameter_types(oop constructor) { | |
| 1913 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1914 return constructor->obj_field(parameterTypes_offset); | |
| 1915 } | |
| 1916 | |
| 1917 void java_lang_reflect_Constructor::set_parameter_types(oop constructor, oop value) { | |
| 1918 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1919 constructor->obj_field_put(parameterTypes_offset, value); | |
| 1920 } | |
| 1921 | |
| 1922 oop java_lang_reflect_Constructor::exception_types(oop constructor) { | |
| 1923 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1924 return constructor->obj_field(exceptionTypes_offset); | |
| 1925 } | |
| 1926 | |
| 1927 void java_lang_reflect_Constructor::set_exception_types(oop constructor, oop value) { | |
| 1928 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1929 constructor->obj_field_put(exceptionTypes_offset, value); | |
| 1930 } | |
| 1931 | |
| 1932 int java_lang_reflect_Constructor::slot(oop reflect) { | |
| 1933 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1934 return reflect->int_field(slot_offset); | |
| 1935 } | |
| 1936 | |
| 1937 void java_lang_reflect_Constructor::set_slot(oop reflect, int value) { | |
| 1938 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1939 reflect->int_field_put(slot_offset, value); | |
| 1940 } | |
| 1941 | |
| 1942 int java_lang_reflect_Constructor::modifiers(oop constructor) { | |
| 1943 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1944 return constructor->int_field(modifiers_offset); | |
| 1945 } | |
| 1946 | |
| 1947 void java_lang_reflect_Constructor::set_modifiers(oop constructor, int value) { | |
| 1948 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1949 constructor->int_field_put(modifiers_offset, value); | |
| 1950 } | |
| 1951 | |
| 1952 bool java_lang_reflect_Constructor::has_signature_field() { | |
| 1953 return (signature_offset >= 0); | |
| 1954 } | |
| 1955 | |
| 1956 oop java_lang_reflect_Constructor::signature(oop constructor) { | |
| 1957 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1958 assert(has_signature_field(), "signature field must be present"); | |
| 1959 return constructor->obj_field(signature_offset); | |
| 1960 } | |
| 1961 | |
| 1962 void java_lang_reflect_Constructor::set_signature(oop constructor, oop value) { | |
| 1963 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1964 assert(has_signature_field(), "signature field must be present"); | |
| 1965 constructor->obj_field_put(signature_offset, value); | |
| 1966 } | |
| 1967 | |
| 1968 bool java_lang_reflect_Constructor::has_annotations_field() { | |
| 1969 return (annotations_offset >= 0); | |
| 1970 } | |
| 1971 | |
| 1972 oop java_lang_reflect_Constructor::annotations(oop constructor) { | |
| 1973 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1974 assert(has_annotations_field(), "annotations field must be present"); | |
| 1975 return constructor->obj_field(annotations_offset); | |
| 1976 } | |
| 1977 | |
| 1978 void java_lang_reflect_Constructor::set_annotations(oop constructor, oop value) { | |
| 1979 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1980 assert(has_annotations_field(), "annotations field must be present"); | |
| 1981 constructor->obj_field_put(annotations_offset, value); | |
| 1982 } | |
| 1983 | |
| 1984 bool java_lang_reflect_Constructor::has_parameter_annotations_field() { | |
| 1985 return (parameter_annotations_offset >= 0); | |
| 1986 } | |
| 1987 | |
| 1988 oop java_lang_reflect_Constructor::parameter_annotations(oop method) { | |
| 1989 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1990 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1991 return method->obj_field(parameter_annotations_offset); | |
| 1992 } | |
| 1993 | |
| 1994 void java_lang_reflect_Constructor::set_parameter_annotations(oop method, oop value) { | |
| 1995 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1996 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1997 method->obj_field_put(parameter_annotations_offset, value); | |
| 1998 } | |
| 1999 | |
| 2000 void java_lang_reflect_Field::compute_offsets() { | |
| 1142 | 2001 klassOop k = SystemDictionary::reflect_Field_klass(); |
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2002 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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2003 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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2004 compute_offset(type_offset, k, vmSymbols::type_name(), vmSymbols::class_signature()); |
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2005 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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2006 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 2007 // The generic signature and annotations fields are only present in 1.5 |
| 2008 signature_offset = -1; | |
| 2009 annotations_offset = -1; | |
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2010 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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2011 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
| 0 | 2012 } |
| 2013 | |
| 2014 Handle java_lang_reflect_Field::create(TRAPS) { | |
| 2015 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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2016 Symbol* name = vmSymbols::java_lang_reflect_Field(); |
| 0 | 2017 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
| 2018 instanceKlassHandle klass (THREAD, k); | |
| 2019 // Ensure it is initialized | |
| 2020 klass->initialize(CHECK_NH); | |
| 2021 return klass->allocate_instance_handle(CHECK_NH); | |
| 2022 } | |
| 2023 | |
| 2024 oop java_lang_reflect_Field::clazz(oop reflect) { | |
| 2025 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2026 return reflect->obj_field(clazz_offset); | |
| 2027 } | |
| 2028 | |
| 2029 void java_lang_reflect_Field::set_clazz(oop reflect, oop value) { | |
| 2030 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2031 reflect->obj_field_put(clazz_offset, value); | |
| 2032 } | |
| 2033 | |
| 2034 oop java_lang_reflect_Field::name(oop field) { | |
| 2035 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2036 return field->obj_field(name_offset); | |
| 2037 } | |
| 2038 | |
| 2039 void java_lang_reflect_Field::set_name(oop field, oop value) { | |
| 2040 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2041 field->obj_field_put(name_offset, value); | |
| 2042 } | |
| 2043 | |
| 2044 oop java_lang_reflect_Field::type(oop field) { | |
| 2045 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2046 return field->obj_field(type_offset); | |
| 2047 } | |
| 2048 | |
| 2049 void java_lang_reflect_Field::set_type(oop field, oop value) { | |
| 2050 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2051 field->obj_field_put(type_offset, value); | |
| 2052 } | |
| 2053 | |
| 2054 int java_lang_reflect_Field::slot(oop reflect) { | |
| 2055 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2056 return reflect->int_field(slot_offset); | |
| 2057 } | |
| 2058 | |
| 2059 void java_lang_reflect_Field::set_slot(oop reflect, int value) { | |
| 2060 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2061 reflect->int_field_put(slot_offset, value); | |
| 2062 } | |
| 2063 | |
| 2064 int java_lang_reflect_Field::modifiers(oop field) { | |
| 2065 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2066 return field->int_field(modifiers_offset); | |
| 2067 } | |
| 2068 | |
| 2069 void java_lang_reflect_Field::set_modifiers(oop field, int value) { | |
| 2070 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2071 field->int_field_put(modifiers_offset, value); | |
| 2072 } | |
| 2073 | |
| 2074 bool java_lang_reflect_Field::has_signature_field() { | |
| 2075 return (signature_offset >= 0); | |
| 2076 } | |
| 2077 | |
| 2078 oop java_lang_reflect_Field::signature(oop field) { | |
| 2079 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2080 assert(has_signature_field(), "signature field must be present"); | |
| 2081 return field->obj_field(signature_offset); | |
| 2082 } | |
| 2083 | |
| 2084 void java_lang_reflect_Field::set_signature(oop field, oop value) { | |
| 2085 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2086 assert(has_signature_field(), "signature field must be present"); | |
| 2087 field->obj_field_put(signature_offset, value); | |
| 2088 } | |
| 2089 | |
| 2090 bool java_lang_reflect_Field::has_annotations_field() { | |
| 2091 return (annotations_offset >= 0); | |
| 2092 } | |
| 2093 | |
| 2094 oop java_lang_reflect_Field::annotations(oop field) { | |
| 2095 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2096 assert(has_annotations_field(), "annotations field must be present"); | |
| 2097 return field->obj_field(annotations_offset); | |
| 2098 } | |
| 2099 | |
| 2100 void java_lang_reflect_Field::set_annotations(oop field, oop value) { | |
| 2101 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2102 assert(has_annotations_field(), "annotations field must be present"); | |
| 2103 field->obj_field_put(annotations_offset, value); | |
| 2104 } | |
| 2105 | |
| 2106 | |
| 2107 void sun_reflect_ConstantPool::compute_offsets() { | |
| 1142 | 2108 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
| 0 | 2109 // This null test can be removed post beta |
| 2110 if (k != NULL) { | |
|
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2111 compute_offset(_cp_oop_offset, k, vmSymbols::constantPoolOop_name(), vmSymbols::object_signature()); |
| 0 | 2112 } |
| 2113 } | |
| 2114 | |
| 2115 | |
| 2116 Handle sun_reflect_ConstantPool::create(TRAPS) { | |
| 2117 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1142 | 2118 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
| 0 | 2119 instanceKlassHandle klass (THREAD, k); |
| 2120 // Ensure it is initialized | |
| 2121 klass->initialize(CHECK_NH); | |
| 2122 return klass->allocate_instance_handle(CHECK_NH); | |
| 2123 } | |
| 2124 | |
| 2125 | |
| 2126 oop sun_reflect_ConstantPool::cp_oop(oop reflect) { | |
| 2127 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2128 return reflect->obj_field(_cp_oop_offset); | |
| 2129 } | |
| 2130 | |
| 2131 | |
| 2132 void sun_reflect_ConstantPool::set_cp_oop(oop reflect, oop value) { | |
| 2133 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2134 reflect->obj_field_put(_cp_oop_offset, value); | |
| 2135 } | |
| 2136 | |
| 2137 void sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets() { | |
| 1142 | 2138 klassOop k = SystemDictionary::reflect_UnsafeStaticFieldAccessorImpl_klass(); |
| 0 | 2139 // This null test can be removed post beta |
| 2140 if (k != NULL) { | |
|
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2141 compute_offset(_base_offset, k, |
| 0 | 2142 vmSymbols::base_name(), vmSymbols::object_signature()); |
| 2143 } | |
| 2144 } | |
| 2145 | |
|
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2146 oop java_lang_boxing_object::initialize_and_allocate(BasicType type, TRAPS) { |
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2147 klassOop k = SystemDictionary::box_klass(type); |
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2148 if (k == NULL) return NULL; |
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2149 instanceKlassHandle h (THREAD, k); |
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2150 if (!h->is_initialized()) h->initialize(CHECK_0); |
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2151 return h->allocate_instance(THREAD); |
| 0 | 2152 } |
| 2153 | |
| 2154 | |
| 2155 oop java_lang_boxing_object::create(BasicType type, jvalue* value, TRAPS) { | |
|
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2156 oop box = initialize_and_allocate(type, CHECK_0); |
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2157 if (box == NULL) return NULL; |
| 0 | 2158 switch (type) { |
| 2159 case T_BOOLEAN: | |
| 2160 box->bool_field_put(value_offset, value->z); | |
| 2161 break; | |
| 2162 case T_CHAR: | |
| 2163 box->char_field_put(value_offset, value->c); | |
| 2164 break; | |
| 2165 case T_FLOAT: | |
| 2166 box->float_field_put(value_offset, value->f); | |
| 2167 break; | |
| 2168 case T_DOUBLE: | |
|
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2169 box->double_field_put(long_value_offset, value->d); |
| 0 | 2170 break; |
| 2171 case T_BYTE: | |
| 2172 box->byte_field_put(value_offset, value->b); | |
| 2173 break; | |
| 2174 case T_SHORT: | |
| 2175 box->short_field_put(value_offset, value->s); | |
| 2176 break; | |
| 2177 case T_INT: | |
| 2178 box->int_field_put(value_offset, value->i); | |
| 2179 break; | |
| 2180 case T_LONG: | |
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2181 box->long_field_put(long_value_offset, value->j); |
| 0 | 2182 break; |
| 2183 default: | |
| 2184 return NULL; | |
| 2185 } | |
| 2186 return box; | |
| 2187 } | |
| 2188 | |
| 2189 | |
|
132
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jrose
parents:
113
diff
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|
2190 BasicType java_lang_boxing_object::basic_type(oop box) { |
|
60b728ec77c1
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jrose
parents:
113
diff
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|
2191 if (box == NULL) return T_ILLEGAL; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
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|
2192 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
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|
2193 if (type == T_OBJECT) // 'unknown' value returned by SD::bkt |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2194 return T_ILLEGAL; |
|
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2195 return type; |
|
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2196 } |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2197 |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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113
diff
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|
2198 |
| 0 | 2199 BasicType java_lang_boxing_object::get_value(oop box, jvalue* value) { |
|
132
60b728ec77c1
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jrose
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diff
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|
2200 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
|
60b728ec77c1
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jrose
parents:
113
diff
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|
2201 switch (type) { |
|
60b728ec77c1
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jrose
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diff
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|
2202 case T_BOOLEAN: |
| 0 | 2203 value->z = box->bool_field(value_offset); |
|
132
60b728ec77c1
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jrose
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113
diff
changeset
|
2204 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2205 case T_CHAR: |
| 0 | 2206 value->c = box->char_field(value_offset); |
|
132
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2207 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2208 case T_FLOAT: |
| 0 | 2209 value->f = box->float_field(value_offset); |
|
132
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2210 break; |
|
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2211 case T_DOUBLE: |
|
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
2212 value->d = box->double_field(long_value_offset); |
|
132
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2213 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2214 case T_BYTE: |
| 0 | 2215 value->b = box->byte_field(value_offset); |
|
132
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2216 break; |
|
60b728ec77c1
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jrose
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113
diff
changeset
|
2217 case T_SHORT: |
| 0 | 2218 value->s = box->short_field(value_offset); |
|
132
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2219 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2220 case T_INT: |
| 0 | 2221 value->i = box->int_field(value_offset); |
|
132
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2222 break; |
|
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2223 case T_LONG: |
|
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
2224 value->j = box->long_field(long_value_offset); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2225 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2226 default: |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2227 return T_ILLEGAL; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2228 } // end switch |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2229 return type; |
| 0 | 2230 } |
| 2231 | |
| 2232 | |
| 2233 BasicType java_lang_boxing_object::set_value(oop box, jvalue* value) { | |
|
132
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2234 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2235 switch (type) { |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2236 case T_BOOLEAN: |
| 0 | 2237 box->bool_field_put(value_offset, value->z); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2238 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2239 case T_CHAR: |
| 0 | 2240 box->char_field_put(value_offset, value->c); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2241 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2242 case T_FLOAT: |
| 0 | 2243 box->float_field_put(value_offset, value->f); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2244 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2245 case T_DOUBLE: |
|
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
2246 box->double_field_put(long_value_offset, value->d); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2247 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2248 case T_BYTE: |
| 0 | 2249 box->byte_field_put(value_offset, value->b); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2250 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2251 case T_SHORT: |
| 0 | 2252 box->short_field_put(value_offset, value->s); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2253 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2254 case T_INT: |
| 0 | 2255 box->int_field_put(value_offset, value->i); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2256 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2257 case T_LONG: |
|
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
2258 box->long_field_put(long_value_offset, value->j); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2259 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2260 default: |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2261 return T_ILLEGAL; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2262 } // end switch |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2263 return type; |
| 0 | 2264 } |
| 2265 | |
| 2266 | |
|
665
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2267 void java_lang_boxing_object::print(BasicType type, jvalue* value, outputStream* st) { |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2268 switch (type) { |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2269 case T_BOOLEAN: st->print("%s", value->z ? "true" : "false"); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2270 case T_CHAR: st->print("%d", value->c); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2271 case T_BYTE: st->print("%d", value->b); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2272 case T_SHORT: st->print("%d", value->s); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2273 case T_INT: st->print("%d", value->i); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2274 case T_LONG: st->print(INT64_FORMAT, value->j); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2275 case T_FLOAT: st->print("%f", value->f); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2276 case T_DOUBLE: st->print("%lf", value->d); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2277 default: st->print("type %d?", type); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2278 } |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2279 } |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2280 |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2281 |
| 0 | 2282 // Support for java_lang_ref_Reference |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2283 oop java_lang_ref_Reference::pending_list_lock() { |
| 1142 | 2284 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
|
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2285 address addr = ik->static_field_addr(static_lock_offset); |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2286 if (UseCompressedOops) { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2287 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2288 } else { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2289 return oopDesc::load_decode_heap_oop((oop*)addr); |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2290 } |
| 0 | 2291 } |
| 2292 | |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2293 HeapWord *java_lang_ref_Reference::pending_list_addr() { |
| 1142 | 2294 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
|
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2295 address addr = ik->static_field_addr(static_pending_offset); |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2296 // XXX This might not be HeapWord aligned, almost rather be char *. |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2297 return (HeapWord*)addr; |
| 0 | 2298 } |
| 2299 | |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2300 oop java_lang_ref_Reference::pending_list() { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2301 char *addr = (char *)pending_list_addr(); |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2302 if (UseCompressedOops) { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2303 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2304 } else { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2305 return oopDesc::load_decode_heap_oop((oop*)addr); |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2306 } |
| 0 | 2307 } |
| 2308 | |
| 2309 | |
| 2310 // Support for java_lang_ref_SoftReference | |
| 2311 | |
| 2312 jlong java_lang_ref_SoftReference::timestamp(oop ref) { | |
| 2313 return ref->long_field(timestamp_offset); | |
| 2314 } | |
| 2315 | |
| 2316 jlong java_lang_ref_SoftReference::clock() { | |
| 1142 | 2317 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
|
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2318 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
|
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2319 return *offset; |
| 0 | 2320 } |
| 2321 | |
| 2322 void java_lang_ref_SoftReference::set_clock(jlong value) { | |
| 1142 | 2323 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
|
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2324 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
|
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2325 *offset = value; |
| 0 | 2326 } |
| 2327 | |
| 2328 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2329 // Support for java_lang_invoke_MethodHandle |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2330 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2331 int java_lang_invoke_MethodHandle::_type_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2332 int java_lang_invoke_MethodHandle::_vmtarget_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2333 int java_lang_invoke_MethodHandle::_vmentry_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2334 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2335 int java_lang_invoke_MemberName::_clazz_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2336 int java_lang_invoke_MemberName::_name_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2337 int java_lang_invoke_MemberName::_type_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2338 int java_lang_invoke_MemberName::_flags_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2339 int java_lang_invoke_MemberName::_vmtarget_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2340 int java_lang_invoke_MemberName::_vmindex_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2341 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2342 int java_lang_invoke_DirectMethodHandle::_vmindex_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2343 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2344 int java_lang_invoke_BoundMethodHandle::_argument_offset; |
|
8033953d67ff
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2345 int java_lang_invoke_BoundMethodHandle::_vmargslot_offset; |
|
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2346 |
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2347 int java_lang_invoke_AdapterMethodHandle::_conversion_offset; |
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2348 |
|
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2349 int java_lang_invoke_CountingMethodHandle::_vmcount_offset; |
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2350 |
|
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2351 void java_lang_invoke_MethodHandle::compute_offsets() { |
| 3938 | 2352 klassOop klass_oop = SystemDictionary::MethodHandle_klass(); |
| 2353 if (klass_oop != NULL && EnableInvokeDynamic) { | |
|
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2354 bool allow_super = false; |
| 3938 | 2355 compute_offset(_type_offset, klass_oop, vmSymbols::type_name(), vmSymbols::java_lang_invoke_MethodType_signature(), allow_super); |
| 2356 METHODHANDLE_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
| 710 | 2357 } |
| 2358 } | |
| 2359 | |
|
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2360 void java_lang_invoke_MemberName::compute_offsets() { |
| 3938 | 2361 klassOop klass_oop = SystemDictionary::MemberName_klass(); |
| 2362 if (klass_oop != NULL && EnableInvokeDynamic) { | |
| 2363 compute_offset(_clazz_offset, klass_oop, vmSymbols::clazz_name(), vmSymbols::class_signature()); | |
| 2364 compute_offset(_name_offset, klass_oop, vmSymbols::name_name(), vmSymbols::string_signature()); | |
| 2365 compute_offset(_type_offset, klass_oop, vmSymbols::type_name(), vmSymbols::object_signature()); | |
| 2366 compute_offset(_flags_offset, klass_oop, vmSymbols::flags_name(), vmSymbols::int_signature()); | |
| 2367 compute_offset(_vmindex_offset, klass_oop, vmSymbols::vmindex_name(), vmSymbols::int_signature()); | |
| 2368 MEMBERNAME_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
| 710 | 2369 } |
| 2370 } | |
| 2371 | |
|
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2372 void java_lang_invoke_DirectMethodHandle::compute_offsets() { |
| 710 | 2373 klassOop k = SystemDictionary::DirectMethodHandle_klass(); |
|
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|
2374 if (k != NULL && EnableInvokeDynamic) { |
| 3938 | 2375 DIRECTMETHODHANDLE_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); |
| 710 | 2376 } |
| 2377 } | |
| 2378 | |
|
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2379 void java_lang_invoke_BoundMethodHandle::compute_offsets() { |
| 710 | 2380 klassOop k = SystemDictionary::BoundMethodHandle_klass(); |
|
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2381 if (k != NULL && EnableInvokeDynamic) { |
| 710 | 2382 compute_offset(_vmargslot_offset, k, vmSymbols::vmargslot_name(), vmSymbols::int_signature(), true); |
| 2383 compute_offset(_argument_offset, k, vmSymbols::argument_name(), vmSymbols::object_signature(), true); | |
| 2384 } | |
| 2385 } | |
| 2386 | |
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2387 void java_lang_invoke_AdapterMethodHandle::compute_offsets() { |
| 710 | 2388 klassOop k = SystemDictionary::AdapterMethodHandle_klass(); |
|
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2389 if (k != NULL && EnableInvokeDynamic) { |
| 710 | 2390 compute_offset(_conversion_offset, k, vmSymbols::conversion_name(), vmSymbols::int_signature(), true); |
| 2391 } | |
| 2392 } | |
| 2393 | |
|
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2394 void java_lang_invoke_CountingMethodHandle::compute_offsets() { |
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2395 klassOop k = SystemDictionary::CountingMethodHandle_klass(); |
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2396 if (k != NULL && EnableInvokeDynamic) { |
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2397 compute_offset(_vmcount_offset, k, vmSymbols::vmcount_name(), vmSymbols::int_signature(), true); |
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2398 } |
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2399 } |
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2400 |
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2401 int java_lang_invoke_CountingMethodHandle::vmcount(oop mh) { |
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2402 assert(is_instance(mh), "CMH only"); |
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2403 return mh->int_field(_vmcount_offset); |
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|
2404 } |
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|
2405 |
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2406 void java_lang_invoke_CountingMethodHandle::set_vmcount(oop mh, int count) { |
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2407 assert(is_instance(mh), "CMH only"); |
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2408 mh->int_field_put(_vmcount_offset, count); |
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|
2409 } |
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|
2410 |
|
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2411 oop java_lang_invoke_MethodHandle::type(oop mh) { |
| 710 | 2412 return mh->obj_field(_type_offset); |
| 2413 } | |
| 2414 | |
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2415 void java_lang_invoke_MethodHandle::set_type(oop mh, oop mtype) { |
| 710 | 2416 mh->obj_field_put(_type_offset, mtype); |
| 2417 } | |
| 2418 | |
| 2419 // fetch type.form.vmslots, which is the number of JVM stack slots | |
| 2420 // required to carry the arguments of this MH | |
| 3938 | 2421 int java_lang_invoke_MethodHandle::vmslots(oop mh) { |
| 710 | 2422 oop mtype = type(mh); |
| 2423 if (mtype == NULL) return 0; // Java code would get NPE | |
|
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2424 oop form = java_lang_invoke_MethodType::form(mtype); |
| 710 | 2425 if (form == NULL) return 0; // Java code would get NPE |
|
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|
2426 return java_lang_invoke_MethodTypeForm::vmslots(form); |
| 710 | 2427 } |
| 2428 | |
| 2429 // fetch the low-level entry point for this mh | |
|
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|
2430 MethodHandleEntry* java_lang_invoke_MethodHandle::vmentry(oop mh) { |
| 710 | 2431 return (MethodHandleEntry*) mh->address_field(_vmentry_offset); |
| 2432 } | |
| 2433 | |
|
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|
2434 void java_lang_invoke_MethodHandle::set_vmentry(oop mh, MethodHandleEntry* me) { |
| 710 | 2435 assert(_vmentry_offset != 0, "must be present"); |
| 2436 | |
| 2437 // This is always the final step that initializes a valid method handle: | |
| 2438 mh->release_address_field_put(_vmentry_offset, (address) me); | |
| 2439 | |
| 2440 // There should be enough memory barriers on exit from native methods | |
| 2441 // to ensure that the MH is fully initialized to all threads before | |
| 2442 // Java code can publish it in global data structures. | |
| 2443 // But just in case, we use release_address_field_put. | |
| 2444 } | |
| 2445 | |
| 2446 /// MemberName accessors | |
| 2447 | |
|
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|
2448 oop java_lang_invoke_MemberName::clazz(oop mname) { |
| 710 | 2449 assert(is_instance(mname), "wrong type"); |
| 2450 return mname->obj_field(_clazz_offset); | |
| 2451 } | |
| 2452 | |
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2453 void java_lang_invoke_MemberName::set_clazz(oop mname, oop clazz) { |
| 710 | 2454 assert(is_instance(mname), "wrong type"); |
| 2455 mname->obj_field_put(_clazz_offset, clazz); | |
| 2456 } | |
| 2457 | |
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2458 oop java_lang_invoke_MemberName::name(oop mname) { |
| 710 | 2459 assert(is_instance(mname), "wrong type"); |
| 2460 return mname->obj_field(_name_offset); | |
| 2461 } | |
| 2462 | |
|
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|
2463 void java_lang_invoke_MemberName::set_name(oop mname, oop name) { |
| 710 | 2464 assert(is_instance(mname), "wrong type"); |
| 2465 mname->obj_field_put(_name_offset, name); | |
| 2466 } | |
| 2467 | |
|
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|
2468 oop java_lang_invoke_MemberName::type(oop mname) { |
| 710 | 2469 assert(is_instance(mname), "wrong type"); |
| 2470 return mname->obj_field(_type_offset); | |
| 2471 } | |
| 2472 | |
|
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|
2473 void java_lang_invoke_MemberName::set_type(oop mname, oop type) { |
| 710 | 2474 assert(is_instance(mname), "wrong type"); |
| 2475 mname->obj_field_put(_type_offset, type); | |
| 2476 } | |
| 2477 | |
|
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|
2478 int java_lang_invoke_MemberName::flags(oop mname) { |
| 710 | 2479 assert(is_instance(mname), "wrong type"); |
| 2480 return mname->int_field(_flags_offset); | |
| 2481 } | |
| 2482 | |
|
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|
2483 void java_lang_invoke_MemberName::set_flags(oop mname, int flags) { |
| 710 | 2484 assert(is_instance(mname), "wrong type"); |
| 2485 mname->int_field_put(_flags_offset, flags); | |
| 2486 } | |
| 2487 | |
|
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|
2488 oop java_lang_invoke_MemberName::vmtarget(oop mname) { |
| 710 | 2489 assert(is_instance(mname), "wrong type"); |
| 2490 return mname->obj_field(_vmtarget_offset); | |
| 2491 } | |
| 2492 | |
|
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|
2493 void java_lang_invoke_MemberName::set_vmtarget(oop mname, oop ref) { |
| 710 | 2494 assert(is_instance(mname), "wrong type"); |
| 2495 mname->obj_field_put(_vmtarget_offset, ref); | |
| 2496 } | |
| 2497 | |
|
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|
2498 int java_lang_invoke_MemberName::vmindex(oop mname) { |
| 710 | 2499 assert(is_instance(mname), "wrong type"); |
| 2500 return mname->int_field(_vmindex_offset); | |
| 2501 } | |
| 2502 | |
|
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|
2503 void java_lang_invoke_MemberName::set_vmindex(oop mname, int index) { |
| 710 | 2504 assert(is_instance(mname), "wrong type"); |
| 2505 mname->int_field_put(_vmindex_offset, index); | |
| 2506 } | |
| 2507 | |
|
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|
2508 oop java_lang_invoke_MethodHandle::vmtarget(oop mh) { |
| 710 | 2509 assert(is_instance(mh), "MH only"); |
| 2510 return mh->obj_field(_vmtarget_offset); | |
| 2511 } | |
| 2512 | |
|
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|
2513 void java_lang_invoke_MethodHandle::set_vmtarget(oop mh, oop ref) { |
| 710 | 2514 assert(is_instance(mh), "MH only"); |
| 2515 mh->obj_field_put(_vmtarget_offset, ref); | |
| 2516 } | |
| 2517 | |
|
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|
2518 int java_lang_invoke_DirectMethodHandle::vmindex(oop mh) { |
| 710 | 2519 assert(is_instance(mh), "DMH only"); |
| 2520 return mh->int_field(_vmindex_offset); | |
| 2521 } | |
| 2522 | |
|
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|
2523 void java_lang_invoke_DirectMethodHandle::set_vmindex(oop mh, int index) { |
| 710 | 2524 assert(is_instance(mh), "DMH only"); |
| 2525 mh->int_field_put(_vmindex_offset, index); | |
| 2526 } | |
| 2527 | |
|
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|
2528 int java_lang_invoke_BoundMethodHandle::vmargslot(oop mh) { |
| 710 | 2529 assert(is_instance(mh), "BMH only"); |
| 2530 return mh->int_field(_vmargslot_offset); | |
| 2531 } | |
| 2532 | |
|
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|
2533 oop java_lang_invoke_BoundMethodHandle::argument(oop mh) { |
| 710 | 2534 assert(is_instance(mh), "BMH only"); |
| 2535 return mh->obj_field(_argument_offset); | |
| 2536 } | |
| 2537 | |
|
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|
2538 int java_lang_invoke_AdapterMethodHandle::conversion(oop mh) { |
| 710 | 2539 assert(is_instance(mh), "AMH only"); |
| 2540 return mh->int_field(_conversion_offset); | |
| 2541 } | |
| 2542 | |
|
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|
2543 void java_lang_invoke_AdapterMethodHandle::set_conversion(oop mh, int conv) { |
| 710 | 2544 assert(is_instance(mh), "AMH only"); |
| 2545 mh->int_field_put(_conversion_offset, conv); | |
| 2546 } | |
| 2547 | |
| 2548 | |
|
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|
2549 // Support for java_lang_invoke_MethodType |
|
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|
2550 |
|
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|
2551 int java_lang_invoke_MethodType::_rtype_offset; |
|
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|
2552 int java_lang_invoke_MethodType::_ptypes_offset; |
|
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|
2553 int java_lang_invoke_MethodType::_form_offset; |
|
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|
2554 |
|
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|
2555 void java_lang_invoke_MethodType::compute_offsets() { |
| 710 | 2556 klassOop k = SystemDictionary::MethodType_klass(); |
| 2557 if (k != NULL) { | |
| 2558 compute_offset(_rtype_offset, k, vmSymbols::rtype_name(), vmSymbols::class_signature()); | |
| 2559 compute_offset(_ptypes_offset, k, vmSymbols::ptypes_name(), vmSymbols::class_array_signature()); | |
|
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|
2560 compute_offset(_form_offset, k, vmSymbols::form_name(), vmSymbols::java_lang_invoke_MethodTypeForm_signature()); |
| 710 | 2561 } |
| 2562 } | |
| 2563 | |
|
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|
2564 void java_lang_invoke_MethodType::print_signature(oop mt, outputStream* st) { |
| 710 | 2565 st->print("("); |
| 2566 objArrayOop pts = ptypes(mt); | |
| 2567 for (int i = 0, limit = pts->length(); i < limit; i++) { | |
| 2568 java_lang_Class::print_signature(pts->obj_at(i), st); | |
| 2569 } | |
| 2570 st->print(")"); | |
| 2571 java_lang_Class::print_signature(rtype(mt), st); | |
| 2572 } | |
| 2573 | |
|
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|
2574 Symbol* java_lang_invoke_MethodType::as_signature(oop mt, bool intern_if_not_found, TRAPS) { |
| 710 | 2575 ResourceMark rm; |
| 2576 stringStream buffer(128); | |
| 2577 print_signature(mt, &buffer); | |
| 2578 const char* sigstr = buffer.base(); | |
| 2579 int siglen = (int) buffer.size(); | |
|
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|
2580 Symbol *name; |
|
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|
2581 if (!intern_if_not_found) { |
|
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|
2582 name = SymbolTable::probe(sigstr, siglen); |
|
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|
2583 } else { |
|
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|
2584 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
|
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6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2585 } |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2586 return name; |
| 710 | 2587 } |
| 2588 | |
|
3785
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2589 bool java_lang_invoke_MethodType::equals(oop mt1, oop mt2) { |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2590 if (rtype(mt1) != rtype(mt2)) |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2591 return false; |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2592 if (ptype_count(mt1) != ptype_count(mt2)) |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2593 return false; |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2594 for (int i = ptype_count(mt1) - 1; i >= 0; i--) { |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2595 if (ptype(mt1, i) != ptype(mt2, i)) |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2596 return false; |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2597 } |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2598 return true; |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2599 } |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2600 |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2601 oop java_lang_invoke_MethodType::rtype(oop mt) { |
| 710 | 2602 assert(is_instance(mt), "must be a MethodType"); |
| 2603 return mt->obj_field(_rtype_offset); | |
| 2604 } | |
| 2605 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2606 objArrayOop java_lang_invoke_MethodType::ptypes(oop mt) { |
| 710 | 2607 assert(is_instance(mt), "must be a MethodType"); |
| 2608 return (objArrayOop) mt->obj_field(_ptypes_offset); | |
| 2609 } | |
| 2610 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2611 oop java_lang_invoke_MethodType::form(oop mt) { |
| 710 | 2612 assert(is_instance(mt), "must be a MethodType"); |
| 2613 return mt->obj_field(_form_offset); | |
| 2614 } | |
| 2615 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2616 oop java_lang_invoke_MethodType::ptype(oop mt, int idx) { |
| 710 | 2617 return ptypes(mt)->obj_at(idx); |
| 2618 } | |
| 2619 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2620 int java_lang_invoke_MethodType::ptype_count(oop mt) { |
|
1133
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
twisti
parents:
1096
diff
changeset
|
2621 return ptypes(mt)->length(); |
|
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
twisti
parents:
1096
diff
changeset
|
2622 } |
|
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
twisti
parents:
1096
diff
changeset
|
2623 |
| 710 | 2624 |
| 2625 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2626 // Support for java_lang_invoke_MethodTypeForm |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2627 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2628 int java_lang_invoke_MethodTypeForm::_vmslots_offset; |
|
3363
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2629 int java_lang_invoke_MethodTypeForm::_vmlayout_offset; |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2630 int java_lang_invoke_MethodTypeForm::_erasedType_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2631 int java_lang_invoke_MethodTypeForm::_genericInvoker_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2632 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2633 void java_lang_invoke_MethodTypeForm::compute_offsets() { |
| 710 | 2634 klassOop k = SystemDictionary::MethodTypeForm_klass(); |
| 2635 if (k != NULL) { | |
| 2636 compute_optional_offset(_vmslots_offset, k, vmSymbols::vmslots_name(), vmSymbols::int_signature(), true); | |
|
3363
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2637 compute_optional_offset(_vmlayout_offset, k, vmSymbols::vmlayout_name(), vmSymbols::object_signature()); |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2638 compute_optional_offset(_erasedType_offset, k, vmSymbols::erasedType_name(), vmSymbols::java_lang_invoke_MethodType_signature(), true); |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2639 compute_optional_offset(_genericInvoker_offset, k, vmSymbols::genericInvoker_name(), vmSymbols::java_lang_invoke_MethodHandle_signature(), true); |
|
1793
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2640 if (_genericInvoker_offset == 0) _genericInvoker_offset = -1; // set to explicit "empty" value |
| 3938 | 2641 METHODTYPEFORM_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); |
| 710 | 2642 } |
| 2643 } | |
| 2644 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2645 int java_lang_invoke_MethodTypeForm::vmslots(oop mtform) { |
| 710 | 2646 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
|
3363
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2647 assert(_vmslots_offset > 0, ""); |
| 710 | 2648 return mtform->int_field(_vmslots_offset); |
| 2649 } | |
| 2650 | |
|
3363
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2651 oop java_lang_invoke_MethodTypeForm::vmlayout(oop mtform) { |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2652 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2653 assert(_vmlayout_offset > 0, ""); |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2654 return mtform->obj_field(_vmlayout_offset); |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2655 } |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2656 |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2657 oop java_lang_invoke_MethodTypeForm::init_vmlayout(oop mtform, oop cookie) { |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2658 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2659 oop previous = vmlayout(mtform); |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2660 if (previous != NULL) { |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2661 return previous; // someone else beat us to it |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2662 } |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2663 HeapWord* cookie_addr = (HeapWord*) mtform->obj_field_addr<oop>(_vmlayout_offset); |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2664 OrderAccess::storestore(); // make sure our copy is fully committed |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2665 previous = oopDesc::atomic_compare_exchange_oop(cookie, cookie_addr, previous); |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2666 if (previous != NULL) { |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2667 return previous; // someone else beat us to it |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2668 } |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2669 return cookie; |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2670 } |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2671 |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2672 oop java_lang_invoke_MethodTypeForm::erasedType(oop mtform) { |
| 710 | 2673 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
| 2674 return mtform->obj_field(_erasedType_offset); | |
| 2675 } | |
| 2676 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2677 oop java_lang_invoke_MethodTypeForm::genericInvoker(oop mtform) { |
|
1793
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2678 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
|
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2679 return mtform->obj_field(_genericInvoker_offset); |
|
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2680 } |
|
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2681 |
| 710 | 2682 |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2683 // Support for java_lang_invoke_CallSite |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2684 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2685 int java_lang_invoke_CallSite::_target_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2686 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2687 void java_lang_invoke_CallSite::compute_offsets() { |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2688 if (!EnableInvokeDynamic) return; |
|
1059
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
949
diff
changeset
|
2689 klassOop k = SystemDictionary::CallSite_klass(); |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2690 if (k != NULL) { |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2691 compute_offset(_target_offset, k, vmSymbols::target_name(), vmSymbols::java_lang_invoke_MethodHandle_signature()); |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2692 } |
|
3900
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2693 |
|
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2694 // Disallow compilation of CallSite.setTargetNormal and CallSite.setTargetVolatile |
|
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2695 // (For C2: keep this until we have throttling logic for uncommon traps.) |
|
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2696 if (k != NULL) { |
|
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2697 instanceKlass* ik = instanceKlass::cast(k); |
|
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2698 methodOop m_normal = ik->lookup_method(vmSymbols::setTargetNormal_name(), vmSymbols::setTarget_signature()); |
|
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2699 methodOop m_volatile = ik->lookup_method(vmSymbols::setTargetVolatile_name(), vmSymbols::setTarget_signature()); |
|
3929
f94227b6117b
7090259: Fix hotspot sources to build with old compilers
kvn
parents:
3905
diff
changeset
|
2700 guarantee(m_normal != NULL && m_volatile != NULL, "must exist"); |
|
3900
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2701 m_normal->set_not_compilable_quietly(); |
|
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2702 m_volatile->set_not_compilable_quietly(); |
|
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2703 } |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2704 } |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2705 |
| 710 | 2706 |
| 0 | 2707 // Support for java_security_AccessControlContext |
| 2708 | |
| 2709 int java_security_AccessControlContext::_context_offset = 0; | |
| 2710 int java_security_AccessControlContext::_privilegedContext_offset = 0; | |
| 2711 int java_security_AccessControlContext::_isPrivileged_offset = 0; | |
| 2712 | |
| 2713 void java_security_AccessControlContext::compute_offsets() { | |
| 2714 assert(_isPrivileged_offset == 0, "offsets should be initialized only once"); | |
| 2715 fieldDescriptor fd; | |
| 2716 instanceKlass* ik = instanceKlass::cast(SystemDictionary::AccessControlContext_klass()); | |
| 2717 | |
| 2718 if (!ik->find_local_field(vmSymbols::context_name(), vmSymbols::protectiondomain_signature(), &fd)) { | |
| 2719 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2720 } | |
| 2721 _context_offset = fd.offset(); | |
| 2722 | |
| 2723 if (!ik->find_local_field(vmSymbols::privilegedContext_name(), vmSymbols::accesscontrolcontext_signature(), &fd)) { | |
| 2724 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2725 } | |
| 2726 _privilegedContext_offset = fd.offset(); | |
| 2727 | |
| 2728 if (!ik->find_local_field(vmSymbols::isPrivileged_name(), vmSymbols::bool_signature(), &fd)) { | |
| 2729 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2730 } | |
| 2731 _isPrivileged_offset = fd.offset(); | |
| 2732 } | |
| 2733 | |
| 2734 | |
| 2735 oop java_security_AccessControlContext::create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS) { | |
| 2736 assert(_isPrivileged_offset != 0, "offsets should have been initialized"); | |
| 2737 // Ensure klass is initialized | |
| 2738 instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->initialize(CHECK_0); | |
| 2739 // Allocate result | |
| 2740 oop result = instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->allocate_instance(CHECK_0); | |
| 2741 // Fill in values | |
| 2742 result->obj_field_put(_context_offset, context()); | |
| 2743 result->obj_field_put(_privilegedContext_offset, privileged_context()); | |
| 2744 result->bool_field_put(_isPrivileged_offset, isPrivileged); | |
| 2745 return result; | |
| 2746 } | |
| 2747 | |
| 2748 | |
| 2749 // Support for java_lang_ClassLoader | |
| 3938 | 2750 bool java_lang_ClassLoader::offsets_computed = false; |
| 2751 int java_lang_ClassLoader::parallelCapable_offset = -1; | |
| 2752 | |
| 2753 void java_lang_ClassLoader::compute_offsets() { | |
| 2754 assert(!offsets_computed, "offsets should be initialized only once"); | |
| 2755 offsets_computed = true; | |
| 2756 | |
| 2757 // The field indicating parallelCapable (parallelLockMap) is only present starting in 7, | |
| 2758 klassOop k1 = SystemDictionary::ClassLoader_klass(); | |
| 2759 compute_optional_offset(parallelCapable_offset, | |
| 2760 k1, vmSymbols::parallelCapable_name(), vmSymbols::concurrenthashmap_signature()); | |
| 2761 } | |
| 0 | 2762 |
| 2763 oop java_lang_ClassLoader::parent(oop loader) { | |
| 2764 assert(loader->is_oop(), "loader must be oop"); | |
| 2765 return loader->obj_field(parent_offset); | |
| 2766 } | |
| 2767 | |
| 2768 | |
| 3938 | 2769 // For class loader classes, parallelCapable defined |
| 2770 // based on non-null field | |
| 2771 // Written to by java.lang.ClassLoader, vm only reads this field, doesn't set it | |
| 2772 bool java_lang_ClassLoader::parallelCapable(oop class_loader) { | |
| 2773 if (!JDK_Version::is_gte_jdk17x_version() | |
| 2774 || parallelCapable_offset == -1) { | |
| 2775 // Default for backward compatibility is false | |
| 2776 return false; | |
| 2777 } | |
| 2778 return (class_loader->obj_field(parallelCapable_offset) != NULL); | |
| 2779 } | |
| 2780 | |
| 0 | 2781 bool java_lang_ClassLoader::is_trusted_loader(oop loader) { |
| 2782 // Fix for 4474172; see evaluation for more details | |
| 2783 loader = non_reflection_class_loader(loader); | |
| 2784 | |
| 2785 oop cl = SystemDictionary::java_system_loader(); | |
| 2786 while(cl != NULL) { | |
| 2787 if (cl == loader) return true; | |
| 2788 cl = parent(cl); | |
| 2789 } | |
| 2790 return false; | |
| 2791 } | |
| 2792 | |
| 2793 oop java_lang_ClassLoader::non_reflection_class_loader(oop loader) { | |
| 2794 if (loader != NULL) { | |
| 2795 // See whether this is one of the class loaders associated with | |
| 2796 // the generated bytecodes for reflection, and if so, "magically" | |
| 2797 // delegate to its parent to prevent class loading from occurring | |
| 2798 // in places where applications using reflection didn't expect it. | |
| 1142 | 2799 klassOop delegating_cl_class = SystemDictionary::reflect_DelegatingClassLoader_klass(); |
| 0 | 2800 // This might be null in non-1.4 JDKs |
| 2801 if (delegating_cl_class != NULL && loader->is_a(delegating_cl_class)) { | |
| 2802 return parent(loader); | |
| 2803 } | |
| 2804 } | |
| 2805 return loader; | |
| 2806 } | |
| 2807 | |
| 2808 | |
| 2809 // Support for java_lang_System | |
| 2810 int java_lang_System::in_offset_in_bytes() { | |
|
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|
2811 return (instanceMirrorKlass::offset_of_static_fields() + static_in_offset); |
| 0 | 2812 } |
| 2813 | |
| 2814 | |
| 2815 int java_lang_System::out_offset_in_bytes() { | |
|
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|
2816 return (instanceMirrorKlass::offset_of_static_fields() + static_out_offset); |
| 0 | 2817 } |
| 2818 | |
| 2819 | |
| 2820 int java_lang_System::err_offset_in_bytes() { | |
|
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|
2821 return (instanceMirrorKlass::offset_of_static_fields() + static_err_offset); |
| 0 | 2822 } |
| 2823 | |
| 2824 | |
| 2825 | |
| 2826 int java_lang_String::value_offset; | |
| 2827 int java_lang_String::offset_offset; | |
| 2828 int java_lang_String::count_offset; | |
| 2829 int java_lang_String::hash_offset; | |
| 3938 | 2830 int java_lang_Class::_klass_offset; |
| 2831 int java_lang_Class::_array_klass_offset; | |
| 2832 int java_lang_Class::_resolved_constructor_offset; | |
| 2833 int java_lang_Class::_oop_size_offset; | |
| 2834 int java_lang_Class::_static_oop_field_count_offset; | |
| 0 | 2835 int java_lang_Throwable::backtrace_offset; |
| 2836 int java_lang_Throwable::detailMessage_offset; | |
| 2837 int java_lang_Throwable::cause_offset; | |
| 2838 int java_lang_Throwable::stackTrace_offset; | |
|
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2839 int java_lang_Throwable::static_unassigned_stacktrace_offset; |
| 0 | 2840 int java_lang_reflect_AccessibleObject::override_offset; |
| 2841 int java_lang_reflect_Method::clazz_offset; | |
| 2842 int java_lang_reflect_Method::name_offset; | |
| 2843 int java_lang_reflect_Method::returnType_offset; | |
| 2844 int java_lang_reflect_Method::parameterTypes_offset; | |
| 2845 int java_lang_reflect_Method::exceptionTypes_offset; | |
| 2846 int java_lang_reflect_Method::slot_offset; | |
| 2847 int java_lang_reflect_Method::modifiers_offset; | |
| 2848 int java_lang_reflect_Method::signature_offset; | |
| 2849 int java_lang_reflect_Method::annotations_offset; | |
| 2850 int java_lang_reflect_Method::parameter_annotations_offset; | |
| 2851 int java_lang_reflect_Method::annotation_default_offset; | |
| 2852 int java_lang_reflect_Constructor::clazz_offset; | |
| 2853 int java_lang_reflect_Constructor::parameterTypes_offset; | |
| 2854 int java_lang_reflect_Constructor::exceptionTypes_offset; | |
| 2855 int java_lang_reflect_Constructor::slot_offset; | |
| 2856 int java_lang_reflect_Constructor::modifiers_offset; | |
| 2857 int java_lang_reflect_Constructor::signature_offset; | |
| 2858 int java_lang_reflect_Constructor::annotations_offset; | |
| 2859 int java_lang_reflect_Constructor::parameter_annotations_offset; | |
| 2860 int java_lang_reflect_Field::clazz_offset; | |
| 2861 int java_lang_reflect_Field::name_offset; | |
| 2862 int java_lang_reflect_Field::type_offset; | |
| 2863 int java_lang_reflect_Field::slot_offset; | |
| 2864 int java_lang_reflect_Field::modifiers_offset; | |
| 2865 int java_lang_reflect_Field::signature_offset; | |
| 2866 int java_lang_reflect_Field::annotations_offset; | |
| 2867 int java_lang_boxing_object::value_offset; | |
|
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2868 int java_lang_boxing_object::long_value_offset; |
| 0 | 2869 int java_lang_ref_Reference::referent_offset; |
| 2870 int java_lang_ref_Reference::queue_offset; | |
| 2871 int java_lang_ref_Reference::next_offset; | |
| 2872 int java_lang_ref_Reference::discovered_offset; | |
| 2873 int java_lang_ref_Reference::static_lock_offset; | |
| 2874 int java_lang_ref_Reference::static_pending_offset; | |
| 2875 int java_lang_ref_Reference::number_of_fake_oop_fields; | |
| 2876 int java_lang_ref_SoftReference::timestamp_offset; | |
| 2877 int java_lang_ref_SoftReference::static_clock_offset; | |
| 2878 int java_lang_ClassLoader::parent_offset; | |
| 2879 int java_lang_System::static_in_offset; | |
| 2880 int java_lang_System::static_out_offset; | |
| 2881 int java_lang_System::static_err_offset; | |
| 2882 int java_lang_StackTraceElement::declaringClass_offset; | |
| 2883 int java_lang_StackTraceElement::methodName_offset; | |
| 2884 int java_lang_StackTraceElement::fileName_offset; | |
| 2885 int java_lang_StackTraceElement::lineNumber_offset; | |
| 2886 int java_lang_AssertionStatusDirectives::classes_offset; | |
| 2887 int java_lang_AssertionStatusDirectives::classEnabled_offset; | |
| 2888 int java_lang_AssertionStatusDirectives::packages_offset; | |
| 2889 int java_lang_AssertionStatusDirectives::packageEnabled_offset; | |
| 2890 int java_lang_AssertionStatusDirectives::deflt_offset; | |
| 2891 int java_nio_Buffer::_limit_offset; | |
| 2892 int sun_misc_AtomicLongCSImpl::_value_offset; | |
| 2893 int java_util_concurrent_locks_AbstractOwnableSynchronizer::_owner_offset = 0; | |
| 2894 int sun_reflect_ConstantPool::_cp_oop_offset; | |
| 2895 int sun_reflect_UnsafeStaticFieldAccessorImpl::_base_offset; | |
| 2896 | |
| 2897 | |
| 2898 // Support for java_lang_StackTraceElement | |
| 2899 | |
| 2900 void java_lang_StackTraceElement::set_fileName(oop element, oop value) { | |
| 2901 element->obj_field_put(fileName_offset, value); | |
| 2902 } | |
| 2903 | |
| 2904 void java_lang_StackTraceElement::set_declaringClass(oop element, oop value) { | |
| 2905 element->obj_field_put(declaringClass_offset, value); | |
| 2906 } | |
| 2907 | |
| 2908 void java_lang_StackTraceElement::set_methodName(oop element, oop value) { | |
| 2909 element->obj_field_put(methodName_offset, value); | |
| 2910 } | |
| 2911 | |
| 2912 void java_lang_StackTraceElement::set_lineNumber(oop element, int value) { | |
| 2913 element->int_field_put(lineNumber_offset, value); | |
| 2914 } | |
| 2915 | |
| 2916 | |
| 2917 // Support for java Assertions - java_lang_AssertionStatusDirectives. | |
| 2918 | |
| 2919 void java_lang_AssertionStatusDirectives::set_classes(oop o, oop val) { | |
| 2920 o->obj_field_put(classes_offset, val); | |
| 2921 } | |
| 2922 | |
| 2923 void java_lang_AssertionStatusDirectives::set_classEnabled(oop o, oop val) { | |
| 2924 o->obj_field_put(classEnabled_offset, val); | |
| 2925 } | |
| 2926 | |
| 2927 void java_lang_AssertionStatusDirectives::set_packages(oop o, oop val) { | |
| 2928 o->obj_field_put(packages_offset, val); | |
| 2929 } | |
| 2930 | |
| 2931 void java_lang_AssertionStatusDirectives::set_packageEnabled(oop o, oop val) { | |
| 2932 o->obj_field_put(packageEnabled_offset, val); | |
| 2933 } | |
| 2934 | |
| 2935 void java_lang_AssertionStatusDirectives::set_deflt(oop o, bool val) { | |
| 2936 o->bool_field_put(deflt_offset, val); | |
| 2937 } | |
| 2938 | |
| 2939 | |
| 2940 // Support for intrinsification of java.nio.Buffer.checkIndex | |
| 2941 int java_nio_Buffer::limit_offset() { | |
| 2942 return _limit_offset; | |
| 2943 } | |
| 2944 | |
| 2945 | |
| 2946 void java_nio_Buffer::compute_offsets() { | |
| 3938 | 2947 klassOop k = SystemDictionary::nio_Buffer_klass(); |
|
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|
2948 assert(k != NULL, "must be loaded in 1.4+"); |
|
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|
2949 compute_offset(_limit_offset, k, vmSymbols::limit_name(), vmSymbols::int_signature()); |
| 0 | 2950 } |
| 2951 | |
| 2952 // Support for intrinsification of sun.misc.AtomicLongCSImpl.attemptUpdate | |
| 2953 int sun_misc_AtomicLongCSImpl::value_offset() { | |
| 3938 | 2954 assert(SystemDictionary::AtomicLongCSImpl_klass() != NULL, "can't call this"); |
| 0 | 2955 return _value_offset; |
| 2956 } | |
| 2957 | |
| 2958 | |
| 2959 void sun_misc_AtomicLongCSImpl::compute_offsets() { | |
| 3938 | 2960 klassOop k = SystemDictionary::AtomicLongCSImpl_klass(); |
| 0 | 2961 // If this class is not present, its value field offset won't be referenced. |
| 2962 if (k != NULL) { | |
|
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|
2963 compute_offset(_value_offset, k, vmSymbols::value_name(), vmSymbols::long_signature()); |
| 0 | 2964 } |
| 2965 } | |
| 2966 | |
| 2967 void java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(TRAPS) { | |
| 2968 if (_owner_offset != 0) return; | |
| 2969 | |
| 2970 assert(JDK_Version::is_gte_jdk16x_version(), "Must be JDK 1.6 or later"); | |
| 2971 SystemDictionary::load_abstract_ownable_synchronizer_klass(CHECK); | |
| 2972 klassOop k = SystemDictionary::abstract_ownable_synchronizer_klass(); | |
|
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|
2973 compute_offset(_owner_offset, k, |
| 0 | 2974 vmSymbols::exclusive_owner_thread_name(), vmSymbols::thread_signature()); |
| 2975 } | |
| 2976 | |
| 2977 oop java_util_concurrent_locks_AbstractOwnableSynchronizer::get_owner_threadObj(oop obj) { | |
| 2978 assert(_owner_offset != 0, "Must be initialized"); | |
| 2979 return obj->obj_field(_owner_offset); | |
| 2980 } | |
| 2981 | |
| 2982 // Compute hard-coded offsets | |
| 2983 // Invoked before SystemDictionary::initialize, so pre-loaded classes | |
| 2984 // are not available to determine the offset_of_static_fields. | |
| 2985 void JavaClasses::compute_hard_coded_offsets() { | |
|
113
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6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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diff
changeset
|
2986 const int x = heapOopSize; |
|
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|
2987 const int header = instanceOopDesc::base_offset_in_bytes(); |
| 0 | 2988 |
| 2989 // Do the String Class | |
| 2990 java_lang_String::value_offset = java_lang_String::hc_value_offset * x + header; | |
| 2991 java_lang_String::offset_offset = java_lang_String::hc_offset_offset * x + header; | |
| 2992 java_lang_String::count_offset = java_lang_String::offset_offset + sizeof (jint); | |
| 2993 java_lang_String::hash_offset = java_lang_String::count_offset + sizeof (jint); | |
| 2994 | |
| 2995 // Throwable Class | |
| 2996 java_lang_Throwable::backtrace_offset = java_lang_Throwable::hc_backtrace_offset * x + header; | |
| 2997 java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header; | |
| 2998 java_lang_Throwable::cause_offset = java_lang_Throwable::hc_cause_offset * x + header; | |
| 2999 java_lang_Throwable::stackTrace_offset = java_lang_Throwable::hc_stackTrace_offset * x + header; | |
|
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|
3000 java_lang_Throwable::static_unassigned_stacktrace_offset = java_lang_Throwable::hc_static_unassigned_stacktrace_offset * x; |
| 0 | 3001 |
| 3002 // java_lang_boxing_object | |
|
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|
3003 java_lang_boxing_object::value_offset = java_lang_boxing_object::hc_value_offset + header; |
|
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|
3004 java_lang_boxing_object::long_value_offset = align_size_up((java_lang_boxing_object::hc_value_offset + header), BytesPerLong); |
| 0 | 3005 |
| 3006 // java_lang_ref_Reference: | |
| 3007 java_lang_ref_Reference::referent_offset = java_lang_ref_Reference::hc_referent_offset * x + header; | |
| 3008 java_lang_ref_Reference::queue_offset = java_lang_ref_Reference::hc_queue_offset * x + header; | |
| 3009 java_lang_ref_Reference::next_offset = java_lang_ref_Reference::hc_next_offset * x + header; | |
| 3010 java_lang_ref_Reference::discovered_offset = java_lang_ref_Reference::hc_discovered_offset * x + header; | |
| 3011 java_lang_ref_Reference::static_lock_offset = java_lang_ref_Reference::hc_static_lock_offset * x; | |
| 3012 java_lang_ref_Reference::static_pending_offset = java_lang_ref_Reference::hc_static_pending_offset * x; | |
| 3013 // Artificial fields for java_lang_ref_Reference | |
| 3014 // The first field is for the discovered field added in 1.4 | |
| 3015 java_lang_ref_Reference::number_of_fake_oop_fields = 1; | |
| 3016 | |
| 3017 // java_lang_ref_SoftReference Class | |
|
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|
3018 java_lang_ref_SoftReference::timestamp_offset = align_size_up((java_lang_ref_SoftReference::hc_timestamp_offset * x + header), BytesPerLong); |
| 0 | 3019 // Don't multiply static fields because they are always in wordSize units |
| 3020 java_lang_ref_SoftReference::static_clock_offset = java_lang_ref_SoftReference::hc_static_clock_offset * x; | |
| 3021 | |
| 3022 // java_lang_ClassLoader | |
| 3023 java_lang_ClassLoader::parent_offset = java_lang_ClassLoader::hc_parent_offset * x + header; | |
| 3024 | |
| 3025 // java_lang_System | |
| 3026 java_lang_System::static_in_offset = java_lang_System::hc_static_in_offset * x; | |
| 3027 java_lang_System::static_out_offset = java_lang_System::hc_static_out_offset * x; | |
| 3028 java_lang_System::static_err_offset = java_lang_System::hc_static_err_offset * x; | |
| 3029 | |
| 3030 // java_lang_StackTraceElement | |
| 3031 java_lang_StackTraceElement::declaringClass_offset = java_lang_StackTraceElement::hc_declaringClass_offset * x + header; | |
| 3032 java_lang_StackTraceElement::methodName_offset = java_lang_StackTraceElement::hc_methodName_offset * x + header; | |
| 3033 java_lang_StackTraceElement::fileName_offset = java_lang_StackTraceElement::hc_fileName_offset * x + header; | |
| 3034 java_lang_StackTraceElement::lineNumber_offset = java_lang_StackTraceElement::hc_lineNumber_offset * x + header; | |
| 3035 java_lang_AssertionStatusDirectives::classes_offset = java_lang_AssertionStatusDirectives::hc_classes_offset * x + header; | |
| 3036 java_lang_AssertionStatusDirectives::classEnabled_offset = java_lang_AssertionStatusDirectives::hc_classEnabled_offset * x + header; | |
| 3037 java_lang_AssertionStatusDirectives::packages_offset = java_lang_AssertionStatusDirectives::hc_packages_offset * x + header; | |
| 3038 java_lang_AssertionStatusDirectives::packageEnabled_offset = java_lang_AssertionStatusDirectives::hc_packageEnabled_offset * x + header; | |
| 3039 java_lang_AssertionStatusDirectives::deflt_offset = java_lang_AssertionStatusDirectives::hc_deflt_offset * x + header; | |
| 3040 | |
| 3041 } | |
| 3042 | |
| 3043 | |
| 3044 // Compute non-hard-coded field offsets of all the classes in this file | |
| 3045 void JavaClasses::compute_offsets() { | |
| 3938 | 3046 // java_lang_Class::compute_offsets was called earlier in bootstrap |
| 3047 java_lang_ClassLoader::compute_offsets(); | |
| 0 | 3048 java_lang_Thread::compute_offsets(); |
| 3049 java_lang_ThreadGroup::compute_offsets(); | |
|
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6817525: turn on method handle functionality by default for JSR 292
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2379
diff
changeset
|
3050 if (EnableInvokeDynamic) { |
|
2357
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7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
3051 java_lang_invoke_MethodHandle::compute_offsets(); |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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diff
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|
3052 java_lang_invoke_MemberName::compute_offsets(); |
|
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7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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diff
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|
3053 java_lang_invoke_DirectMethodHandle::compute_offsets(); |
|
8033953d67ff
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jrose
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2356
diff
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|
3054 java_lang_invoke_BoundMethodHandle::compute_offsets(); |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
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|
3055 java_lang_invoke_AdapterMethodHandle::compute_offsets(); |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
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|
3056 java_lang_invoke_MethodType::compute_offsets(); |
|
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jrose
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diff
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|
3057 java_lang_invoke_MethodTypeForm::compute_offsets(); |
|
8033953d67ff
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jrose
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2356
diff
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|
3058 java_lang_invoke_CallSite::compute_offsets(); |
|
3905
c26de9aef2ed
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parents:
3900
diff
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|
3059 java_lang_invoke_CountingMethodHandle::compute_offsets(); |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
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diff
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|
3060 } |
| 0 | 3061 java_security_AccessControlContext::compute_offsets(); |
| 3062 // Initialize reflection classes. The layouts of these classes | |
| 3063 // changed with the new reflection implementation in JDK 1.4, and | |
| 3064 // since the Universe doesn't know what JDK version it is until this | |
| 3065 // point we defer computation of these offsets until now. | |
| 3066 java_lang_reflect_AccessibleObject::compute_offsets(); | |
| 3067 java_lang_reflect_Method::compute_offsets(); | |
| 3068 java_lang_reflect_Constructor::compute_offsets(); | |
| 3069 java_lang_reflect_Field::compute_offsets(); | |
| 3070 if (JDK_Version::is_gte_jdk14x_version()) { | |
| 3071 java_nio_Buffer::compute_offsets(); | |
| 3072 } | |
| 3073 if (JDK_Version::is_gte_jdk15x_version()) { | |
| 3074 sun_reflect_ConstantPool::compute_offsets(); | |
| 3075 sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets(); | |
| 3076 } | |
| 3077 sun_misc_AtomicLongCSImpl::compute_offsets(); | |
| 710 | 3078 |
| 3079 // generated interpreter code wants to know about the offsets we just computed: | |
| 3080 AbstractAssembler::update_delayed_values(); | |
| 0 | 3081 } |
| 3082 | |
| 3083 #ifndef PRODUCT | |
| 3084 | |
| 3085 // These functions exist to assert the validity of hard-coded field offsets to guard | |
| 3086 // against changes in the class files | |
| 3087 | |
| 3088 bool JavaClasses::check_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
| 3089 EXCEPTION_MARK; | |
| 3090 fieldDescriptor fd; | |
|
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diff
changeset
|
3091 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
| 0 | 3092 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
| 3093 instanceKlassHandle h_klass (THREAD, k); | |
|
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|
3094 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
|
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diff
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|
3095 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
|
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diff
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|
3096 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
| 0 | 3097 tty->print_cr("Nonstatic field %s.%s not found", klass_name, field_name); |
| 3098 return false; | |
| 3099 } | |
| 3100 if (fd.is_static()) { | |
| 3101 tty->print_cr("Nonstatic field %s.%s appears to be static", klass_name, field_name); | |
| 3102 return false; | |
| 3103 } | |
| 3104 if (fd.offset() == hardcoded_offset ) { | |
| 3105 return true; | |
| 3106 } else { | |
| 3107 tty->print_cr("Offset of nonstatic field %s.%s is hardcoded as %d but should really be %d.", | |
| 3108 klass_name, field_name, hardcoded_offset, fd.offset()); | |
| 3109 return false; | |
| 3110 } | |
| 3111 } | |
| 3112 | |
| 3113 | |
| 3114 bool JavaClasses::check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
| 3115 EXCEPTION_MARK; | |
| 3116 fieldDescriptor fd; | |
|
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diff
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|
3117 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
| 0 | 3118 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
| 3119 instanceKlassHandle h_klass (THREAD, k); | |
|
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|
3120 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
|
3582bf76420e
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changeset
|
3121 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
|
3582bf76420e
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diff
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|
3122 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
| 0 | 3123 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
| 3124 return false; | |
| 3125 } | |
| 3126 if (!fd.is_static()) { | |
| 3127 tty->print_cr("Static field %s.%s appears to be nonstatic", klass_name, field_name); | |
| 3128 return false; | |
| 3129 } | |
|
2376
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parents:
2357
diff
changeset
|
3130 if (fd.offset() == hardcoded_offset + instanceMirrorKlass::offset_of_static_fields()) { |
| 0 | 3131 return true; |
| 3132 } else { | |
|
2376
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|
3133 tty->print_cr("Offset of static field %s.%s is hardcoded as %d but should really be %d.", klass_name, field_name, hardcoded_offset, fd.offset() - instanceMirrorKlass::offset_of_static_fields()); |
| 0 | 3134 return false; |
| 3135 } | |
| 3136 } | |
| 3137 | |
| 3138 | |
|
132
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|
3139 bool JavaClasses::check_constant(const char *klass_name, int hardcoded_constant, const char *field_name, const char* field_sig) { |
|
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|
3140 EXCEPTION_MARK; |
|
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|
3141 fieldDescriptor fd; |
|
2177
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1989
diff
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|
3142 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
|
132
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3143 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
|
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|
3144 instanceKlassHandle h_klass (THREAD, k); |
|
2177
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diff
changeset
|
3145 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
|
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coleenp
parents:
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diff
changeset
|
3146 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
|
3582bf76420e
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diff
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|
3147 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
|
132
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|
3148 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
|
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|
3149 return false; |
|
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|
3150 } |
|
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|
3151 if (!fd.is_static() || !fd.has_initial_value()) { |
|
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|
3152 tty->print_cr("Static field %s.%s appears to be non-constant", klass_name, field_name); |
|
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|
3153 return false; |
|
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|
3154 } |
|
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|
3155 if (!fd.initial_value_tag().is_int()) { |
|
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|
3156 tty->print_cr("Static field %s.%s is not an int", klass_name, field_name); |
|
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|
3157 return false; |
|
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|
3158 } |
|
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|
3159 jint field_value = fd.int_initial_value(); |
|
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|
3160 if (field_value == hardcoded_constant) { |
|
60b728ec77c1
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|
3161 return true; |
|
60b728ec77c1
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|
3162 } else { |
|
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|
3163 tty->print_cr("Constant value of static field %s.%s is hardcoded as %d but should really be %d.", klass_name, field_name, hardcoded_constant, field_value); |
|
60b728ec77c1
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jrose
parents:
113
diff
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|
3164 return false; |
|
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|
3165 } |
|
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|
3166 } |
|
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|
3167 |
|
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|
3168 |
| 0 | 3169 // Check the hard-coded field offsets of all the classes in this file |
| 3170 | |
| 3171 void JavaClasses::check_offsets() { | |
| 3172 bool valid = true; | |
| 3173 | |
| 3174 #define CHECK_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ | |
| 3175 valid &= check_offset(klass_name, cpp_klass_name :: field_name ## _offset, #field_name, field_sig) | |
| 3176 | |
|
165
437d03ea40b1
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kvn
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132
diff
changeset
|
3177 #define CHECK_LONG_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
|
437d03ea40b1
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132
diff
changeset
|
3178 valid &= check_offset(klass_name, cpp_klass_name :: long_ ## field_name ## _offset, #field_name, field_sig) |
|
437d03ea40b1
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132
diff
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|
3179 |
| 0 | 3180 #define CHECK_STATIC_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
| 3181 valid &= check_static_offset(klass_name, cpp_klass_name :: static_ ## field_name ## _offset, #field_name, field_sig) | |
| 3182 | |
|
132
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113
diff
changeset
|
3183 #define CHECK_CONSTANT(klass_name, cpp_klass_name, field_name, field_sig) \ |
|
60b728ec77c1
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113
diff
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|
3184 valid &= check_constant(klass_name, cpp_klass_name :: field_name, #field_name, field_sig) |
|
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|
3185 |
| 0 | 3186 // java.lang.String |
| 3187 | |
| 3188 CHECK_OFFSET("java/lang/String", java_lang_String, value, "[C"); | |
| 3189 CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I"); | |
| 3190 CHECK_OFFSET("java/lang/String", java_lang_String, count, "I"); | |
| 3191 CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I"); | |
| 3192 | |
| 3193 // java.lang.Class | |
| 3194 | |
| 3195 // Fake fields | |
| 3196 // CHECK_OFFSET("java/lang/Class", java_lang_Class, klass); // %%% this needs to be checked | |
| 3197 // CHECK_OFFSET("java/lang/Class", java_lang_Class, array_klass); // %%% this needs to be checked | |
| 3198 // CHECK_OFFSET("java/lang/Class", java_lang_Class, resolved_constructor); // %%% this needs to be checked | |
| 3199 | |
| 3200 // java.lang.Throwable | |
| 3201 | |
| 3202 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, backtrace, "Ljava/lang/Object;"); | |
| 3203 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, detailMessage, "Ljava/lang/String;"); | |
| 3204 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, cause, "Ljava/lang/Throwable;"); | |
| 3205 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, stackTrace, "[Ljava/lang/StackTraceElement;"); | |
| 3206 | |
| 3207 // Boxed primitive objects (java_lang_boxing_object) | |
| 3208 | |
| 3209 CHECK_OFFSET("java/lang/Boolean", java_lang_boxing_object, value, "Z"); | |
| 3210 CHECK_OFFSET("java/lang/Character", java_lang_boxing_object, value, "C"); | |
| 3211 CHECK_OFFSET("java/lang/Float", java_lang_boxing_object, value, "F"); | |
|
165
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diff
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|
3212 CHECK_LONG_OFFSET("java/lang/Double", java_lang_boxing_object, value, "D"); |
| 0 | 3213 CHECK_OFFSET("java/lang/Byte", java_lang_boxing_object, value, "B"); |
| 3214 CHECK_OFFSET("java/lang/Short", java_lang_boxing_object, value, "S"); | |
| 3215 CHECK_OFFSET("java/lang/Integer", java_lang_boxing_object, value, "I"); | |
|
165
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|
3216 CHECK_LONG_OFFSET("java/lang/Long", java_lang_boxing_object, value, "J"); |
| 0 | 3217 |
| 3218 // java.lang.ClassLoader | |
| 3219 | |
| 3220 CHECK_OFFSET("java/lang/ClassLoader", java_lang_ClassLoader, parent, "Ljava/lang/ClassLoader;"); | |
| 3221 | |
| 3222 // java.lang.System | |
| 3223 | |
| 3224 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, in, "Ljava/io/InputStream;"); | |
| 3225 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, out, "Ljava/io/PrintStream;"); | |
| 3226 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, err, "Ljava/io/PrintStream;"); | |
| 3227 | |
| 3228 // java.lang.StackTraceElement | |
| 3229 | |
| 3230 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClass, "Ljava/lang/String;"); | |
| 3231 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, methodName, "Ljava/lang/String;"); | |
| 3232 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, fileName, "Ljava/lang/String;"); | |
| 3233 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, lineNumber, "I"); | |
| 3234 | |
| 3235 // java.lang.ref.Reference | |
| 3236 | |
| 3237 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, referent, "Ljava/lang/Object;"); | |
| 3238 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, queue, "Ljava/lang/ref/ReferenceQueue;"); | |
| 3239 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, next, "Ljava/lang/ref/Reference;"); | |
| 3240 // Fake field | |
| 3241 //CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, discovered, "Ljava/lang/ref/Reference;"); | |
| 3242 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, lock, "Ljava/lang/ref/Reference$Lock;"); | |
| 3243 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, pending, "Ljava/lang/ref/Reference;"); | |
| 3244 | |
| 3245 // java.lang.ref.SoftReference | |
| 3246 | |
| 3247 CHECK_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, timestamp, "J"); | |
| 3248 CHECK_STATIC_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, clock, "J"); | |
| 3249 | |
| 3250 // java.lang.AssertionStatusDirectives | |
| 3251 // | |
| 3252 // The CheckAssertionStatusDirectives boolean can be removed from here and | |
| 3253 // globals.hpp after the AssertionStatusDirectives class has been integrated | |
| 3254 // into merlin "for some time." Without it, the vm will fail with early | |
| 3255 // merlin builds. | |
| 3256 | |
| 3257 if (CheckAssertionStatusDirectives && JDK_Version::is_gte_jdk14x_version()) { | |
| 3258 const char* nm = "java/lang/AssertionStatusDirectives"; | |
| 3259 const char* sig = "[Ljava/lang/String;"; | |
| 3260 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classes, sig); | |
| 3261 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classEnabled, "[Z"); | |
| 3262 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packages, sig); | |
| 3263 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packageEnabled, "[Z"); | |
| 3264 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, deflt, "Z"); | |
| 3265 } | |
| 3266 | |
| 3267 if (!valid) vm_exit_during_initialization("Hard-coded field offset verification failed"); | |
| 3268 } | |
| 3269 | |
| 3270 #endif // PRODUCT | |
| 3271 | |
| 3938 | 3272 int InjectedField::compute_offset() { |
| 3273 klassOop klass_oop = klass(); | |
| 3274 for (AllFieldStream fs(instanceKlass::cast(klass_oop)); !fs.done(); fs.next()) { | |
| 3275 if (!may_be_java && !fs.access_flags().is_internal()) { | |
| 3276 // Only look at injected fields | |
| 3277 continue; | |
| 3278 } | |
| 3279 if (fs.name() == name() && fs.signature() == signature()) { | |
| 3280 return fs.offset(); | |
| 3281 } | |
| 3282 } | |
| 3283 ResourceMark rm; | |
| 3284 tty->print_cr("Invalid layout of %s at %s", instanceKlass::cast(klass_oop)->external_name(), name()->as_C_string()); | |
| 3285 fatal("Invalid layout of preloaded class"); | |
| 3286 return -1; | |
| 3287 } | |
| 3288 | |
| 0 | 3289 void javaClasses_init() { |
| 3290 JavaClasses::compute_offsets(); | |
| 3291 JavaClasses::check_offsets(); | |
| 3292 FilteredFieldsMap::initialize(); // must be done after computing offsets. | |
| 3293 } |