Mercurial > hg > truffle
annotate src/share/vm/classfile/javaClasses.cpp @ 3795:b16582d6c7db
Merge
| author | kvn |
|---|---|
| date | Thu, 07 Jul 2011 10:51:07 -0700 |
| parents | 74cd10898bea ddd894528dbc |
| children | 0b80db433fcb |
| 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" | |
| 31 #include "interpreter/interpreter.hpp" | |
| 32 #include "memory/oopFactory.hpp" | |
| 33 #include "memory/resourceArea.hpp" | |
| 34 #include "memory/universe.inline.hpp" | |
| 35 #include "oops/instanceKlass.hpp" | |
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36 #include "oops/instanceMirrorKlass.hpp" |
| 1972 | 37 #include "oops/klass.hpp" |
| 38 #include "oops/klassOop.hpp" | |
| 39 #include "oops/methodOop.hpp" | |
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40 #include "oops/symbol.hpp" |
| 1972 | 41 #include "oops/typeArrayOop.hpp" |
| 42 #include "runtime/fieldDescriptor.hpp" | |
| 43 #include "runtime/handles.inline.hpp" | |
| 44 #include "runtime/interfaceSupport.hpp" | |
| 45 #include "runtime/java.hpp" | |
| 46 #include "runtime/javaCalls.hpp" | |
| 47 #include "runtime/safepoint.hpp" | |
| 48 #include "runtime/vframe.hpp" | |
| 49 #include "utilities/preserveException.hpp" | |
| 50 #ifdef TARGET_OS_FAMILY_linux | |
| 51 # include "thread_linux.inline.hpp" | |
| 52 #endif | |
| 53 #ifdef TARGET_OS_FAMILY_solaris | |
| 54 # include "thread_solaris.inline.hpp" | |
| 55 #endif | |
| 56 #ifdef TARGET_OS_FAMILY_windows | |
| 57 # include "thread_windows.inline.hpp" | |
| 58 #endif | |
| 0 | 59 |
| 710 | 60 static bool find_field(instanceKlass* ik, |
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61 Symbol* name_symbol, Symbol* signature_symbol, |
| 710 | 62 fieldDescriptor* fd, |
| 63 bool allow_super = false) { | |
| 64 if (allow_super) | |
| 65 return ik->find_field(name_symbol, signature_symbol, fd) != NULL; | |
| 66 else | |
| 67 return ik->find_local_field(name_symbol, signature_symbol, fd); | |
| 68 } | |
| 69 | |
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70 // Helpful routine for computing field offsets at run time rather than hardcoding them |
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71 static void |
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72 compute_offset(int &dest_offset, |
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73 klassOop klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
| 710 | 74 bool allow_super = false) { |
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75 fieldDescriptor fd; |
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76 instanceKlass* ik = instanceKlass::cast(klass_oop); |
| 710 | 77 if (!find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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78 ResourceMark rm; |
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79 tty->print_cr("Invalid layout of %s at %s", ik->external_name(), name_symbol->as_C_string()); |
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80 fatal("Invalid layout of preloaded class"); |
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81 } |
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82 dest_offset = fd.offset(); |
| 0 | 83 } |
| 84 | |
| 85 // Same as above but for "optional" offsets that might not be present in certain JDK versions | |
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86 static void |
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87 compute_optional_offset(int& dest_offset, |
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88 klassOop klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
| 710 | 89 bool allow_super = false) { |
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90 fieldDescriptor fd; |
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91 instanceKlass* ik = instanceKlass::cast(klass_oop); |
| 710 | 92 if (find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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93 dest_offset = fd.offset(); |
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94 } |
| 0 | 95 } |
| 96 | |
| 710 | 97 |
| 0 | 98 Handle java_lang_String::basic_create(int length, bool tenured, TRAPS) { |
| 99 // Create the String object first, so there's a chance that the String | |
| 100 // and the char array it points to end up in the same cache line. | |
| 101 oop obj; | |
| 102 if (tenured) { | |
| 1142 | 103 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_permanent_instance(CHECK_NH); |
| 0 | 104 } else { |
| 1142 | 105 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_instance(CHECK_NH); |
| 0 | 106 } |
| 107 | |
| 108 // Create the char array. The String object must be handlized here | |
| 109 // because GC can happen as a result of the allocation attempt. | |
| 110 Handle h_obj(THREAD, obj); | |
| 111 typeArrayOop buffer; | |
| 112 if (tenured) { | |
| 113 buffer = oopFactory::new_permanent_charArray(length, CHECK_NH); | |
| 114 } else { | |
| 115 buffer = oopFactory::new_charArray(length, CHECK_NH); | |
| 116 } | |
| 117 | |
| 118 // Point the String at the char array | |
| 119 obj = h_obj(); | |
| 120 set_value(obj, buffer); | |
| 121 // No need to zero the offset, allocation zero'ed the entire String object | |
| 122 assert(offset(obj) == 0, "initial String offset should be zero"); | |
| 123 //set_offset(obj, 0); | |
| 124 set_count(obj, length); | |
| 125 | |
| 126 return h_obj; | |
| 127 } | |
| 128 | |
| 129 Handle java_lang_String::basic_create_from_unicode(jchar* unicode, int length, bool tenured, TRAPS) { | |
| 130 Handle h_obj = basic_create(length, tenured, CHECK_NH); | |
| 131 typeArrayOop buffer = value(h_obj()); | |
| 132 for (int index = 0; index < length; index++) { | |
| 133 buffer->char_at_put(index, unicode[index]); | |
| 134 } | |
| 135 return h_obj; | |
| 136 } | |
| 137 | |
| 138 Handle java_lang_String::create_from_unicode(jchar* unicode, int length, TRAPS) { | |
| 139 return basic_create_from_unicode(unicode, length, false, CHECK_NH); | |
| 140 } | |
| 141 | |
| 142 Handle java_lang_String::create_tenured_from_unicode(jchar* unicode, int length, TRAPS) { | |
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143 return basic_create_from_unicode(unicode, length, JavaObjectsInPerm, CHECK_NH); |
| 0 | 144 } |
| 145 | |
| 146 oop java_lang_String::create_oop_from_unicode(jchar* unicode, int length, TRAPS) { | |
| 147 Handle h_obj = basic_create_from_unicode(unicode, length, false, CHECK_0); | |
| 148 return h_obj(); | |
| 149 } | |
| 150 | |
| 151 Handle java_lang_String::create_from_str(const char* utf8_str, TRAPS) { | |
| 152 if (utf8_str == NULL) { | |
| 153 return Handle(); | |
| 154 } | |
| 155 int length = UTF8::unicode_length(utf8_str); | |
| 156 Handle h_obj = basic_create(length, false, CHECK_NH); | |
| 157 if (length > 0) { | |
| 158 UTF8::convert_to_unicode(utf8_str, value(h_obj())->char_at_addr(0), length); | |
| 159 } | |
| 160 return h_obj; | |
| 161 } | |
| 162 | |
| 163 oop java_lang_String::create_oop_from_str(const char* utf8_str, TRAPS) { | |
| 164 Handle h_obj = create_from_str(utf8_str, CHECK_0); | |
| 165 return h_obj(); | |
| 166 } | |
| 167 | |
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168 Handle java_lang_String::create_from_symbol(Symbol* symbol, TRAPS) { |
| 0 | 169 int length = UTF8::unicode_length((char*)symbol->bytes(), symbol->utf8_length()); |
| 170 Handle h_obj = basic_create(length, false, CHECK_NH); | |
| 171 if (length > 0) { | |
| 172 UTF8::convert_to_unicode((char*)symbol->bytes(), value(h_obj())->char_at_addr(0), length); | |
| 173 } | |
| 174 return h_obj; | |
| 175 } | |
| 176 | |
| 177 // Converts a C string to a Java String based on current encoding | |
| 178 Handle java_lang_String::create_from_platform_dependent_str(const char* str, TRAPS) { | |
| 179 assert(str != NULL, "bad arguments"); | |
| 180 | |
| 181 typedef jstring (*to_java_string_fn_t)(JNIEnv*, const char *); | |
| 182 static to_java_string_fn_t _to_java_string_fn = NULL; | |
| 183 | |
| 184 if (_to_java_string_fn == NULL) { | |
| 185 void *lib_handle = os::native_java_library(); | |
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186 _to_java_string_fn = CAST_TO_FN_PTR(to_java_string_fn_t, os::dll_lookup(lib_handle, "NewStringPlatform")); |
| 0 | 187 if (_to_java_string_fn == NULL) { |
| 188 fatal("NewStringPlatform missing"); | |
| 189 } | |
| 190 } | |
| 191 | |
| 192 jstring js = NULL; | |
| 193 { JavaThread* thread = (JavaThread*)THREAD; | |
| 194 assert(thread->is_Java_thread(), "must be java thread"); | |
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195 HandleMark hm(thread); |
| 0 | 196 ThreadToNativeFromVM ttn(thread); |
| 197 js = (_to_java_string_fn)(thread->jni_environment(), str); | |
| 198 } | |
| 199 return Handle(THREAD, JNIHandles::resolve(js)); | |
| 200 } | |
| 201 | |
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202 // Converts a Java String to a native C string that can be used for |
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203 // native OS calls. |
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204 char* java_lang_String::as_platform_dependent_str(Handle java_string, TRAPS) { |
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205 |
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206 typedef char* (*to_platform_string_fn_t)(JNIEnv*, jstring, bool*); |
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207 static to_platform_string_fn_t _to_platform_string_fn = NULL; |
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208 |
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209 if (_to_platform_string_fn == NULL) { |
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210 void *lib_handle = os::native_java_library(); |
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211 _to_platform_string_fn = CAST_TO_FN_PTR(to_platform_string_fn_t, os::dll_lookup(lib_handle, "GetStringPlatformChars")); |
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212 if (_to_platform_string_fn == NULL) { |
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213 fatal("GetStringPlatformChars missing"); |
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214 } |
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215 } |
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216 |
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217 char *native_platform_string; |
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218 { JavaThread* thread = (JavaThread*)THREAD; |
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219 assert(thread->is_Java_thread(), "must be java thread"); |
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220 JNIEnv *env = thread->jni_environment(); |
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221 jstring js = (jstring) JNIHandles::make_local(env, java_string()); |
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222 bool is_copy; |
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223 HandleMark hm(thread); |
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224 ThreadToNativeFromVM ttn(thread); |
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225 native_platform_string = (_to_platform_string_fn)(env, js, &is_copy); |
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226 assert(is_copy == JNI_TRUE, "is_copy value changed"); |
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227 JNIHandles::destroy_local(js); |
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228 } |
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229 return native_platform_string; |
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230 } |
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231 |
| 0 | 232 Handle java_lang_String::char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS) { |
| 233 oop obj = java_string(); | |
| 234 // Typical usage is to convert all '/' to '.' in string. | |
| 235 typeArrayOop value = java_lang_String::value(obj); | |
| 236 int offset = java_lang_String::offset(obj); | |
| 237 int length = java_lang_String::length(obj); | |
| 238 | |
| 239 // First check if any from_char exist | |
| 240 int index; // Declared outside, used later | |
| 241 for (index = 0; index < length; index++) { | |
| 242 if (value->char_at(index + offset) == from_char) { | |
| 243 break; | |
| 244 } | |
| 245 } | |
| 246 if (index == length) { | |
| 247 // No from_char, so do not copy. | |
| 248 return java_string; | |
| 249 } | |
| 250 | |
| 251 // Create new UNICODE buffer. Must handlize value because GC | |
| 252 // may happen during String and char array creation. | |
| 253 typeArrayHandle h_value(THREAD, value); | |
| 254 Handle string = basic_create(length, false, CHECK_NH); | |
| 255 | |
| 256 typeArrayOop from_buffer = h_value(); | |
| 257 typeArrayOop to_buffer = java_lang_String::value(string()); | |
| 258 | |
| 259 // Copy contents | |
| 260 for (index = 0; index < length; index++) { | |
| 261 jchar c = from_buffer->char_at(index + offset); | |
| 262 if (c == from_char) { | |
| 263 c = to_char; | |
| 264 } | |
| 265 to_buffer->char_at_put(index, c); | |
| 266 } | |
| 267 return string; | |
| 268 } | |
| 269 | |
| 270 jchar* java_lang_String::as_unicode_string(oop java_string, int& length) { | |
| 271 typeArrayOop value = java_lang_String::value(java_string); | |
| 272 int offset = java_lang_String::offset(java_string); | |
| 273 length = java_lang_String::length(java_string); | |
| 274 | |
| 275 jchar* result = NEW_RESOURCE_ARRAY(jchar, length); | |
| 276 for (int index = 0; index < length; index++) { | |
| 277 result[index] = value->char_at(index + offset); | |
| 278 } | |
| 279 return result; | |
| 280 } | |
| 281 | |
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282 unsigned int java_lang_String::hash_string(oop java_string) { |
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283 typeArrayOop value = java_lang_String::value(java_string); |
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284 int offset = java_lang_String::offset(java_string); |
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285 int length = java_lang_String::length(java_string); |
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286 |
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287 if (length == 0) return 0; |
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288 return hash_string(value->char_at_addr(offset), length); |
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289 } |
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290 |
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291 Symbol* java_lang_String::as_symbol(Handle java_string, TRAPS) { |
| 0 | 292 oop obj = java_string(); |
| 293 typeArrayOop value = java_lang_String::value(obj); | |
| 294 int offset = java_lang_String::offset(obj); | |
| 295 int length = java_lang_String::length(obj); | |
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296 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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297 Symbol* sym = SymbolTable::lookup_unicode(base, length, THREAD); |
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298 return sym; |
| 0 | 299 } |
| 300 | |
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301 Symbol* java_lang_String::as_symbol_or_null(oop java_string) { |
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302 typeArrayOop value = java_lang_String::value(java_string); |
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303 int offset = java_lang_String::offset(java_string); |
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304 int length = java_lang_String::length(java_string); |
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305 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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306 return SymbolTable::probe_unicode(base, length); |
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307 } |
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308 |
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309 |
| 0 | 310 int java_lang_String::utf8_length(oop java_string) { |
| 311 typeArrayOop value = java_lang_String::value(java_string); | |
| 312 int offset = java_lang_String::offset(java_string); | |
| 313 int length = java_lang_String::length(java_string); | |
| 314 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
| 315 return UNICODE::utf8_length(position, length); | |
| 316 } | |
| 317 | |
| 318 char* java_lang_String::as_utf8_string(oop java_string) { | |
| 319 typeArrayOop value = java_lang_String::value(java_string); | |
| 320 int offset = java_lang_String::offset(java_string); | |
| 321 int length = java_lang_String::length(java_string); | |
| 322 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
| 323 return UNICODE::as_utf8(position, length); | |
| 324 } | |
| 325 | |
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326 char* java_lang_String::as_utf8_string(oop java_string, char* buf, int buflen) { |
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327 typeArrayOop value = java_lang_String::value(java_string); |
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328 int offset = java_lang_String::offset(java_string); |
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329 int length = java_lang_String::length(java_string); |
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330 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); |
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331 return UNICODE::as_utf8(position, length, buf, buflen); |
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332 } |
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333 |
| 0 | 334 char* java_lang_String::as_utf8_string(oop java_string, int start, int len) { |
| 335 typeArrayOop value = java_lang_String::value(java_string); | |
| 336 int offset = java_lang_String::offset(java_string); | |
| 337 int length = java_lang_String::length(java_string); | |
| 338 assert(start + len <= length, "just checking"); | |
| 339 jchar* position = value->char_at_addr(offset + start); | |
| 340 return UNICODE::as_utf8(position, len); | |
| 341 } | |
| 342 | |
| 343 bool java_lang_String::equals(oop java_string, jchar* chars, int len) { | |
| 344 assert(SharedSkipVerify || | |
| 1142 | 345 java_string->klass() == SystemDictionary::String_klass(), |
| 0 | 346 "must be java_string"); |
| 347 typeArrayOop value = java_lang_String::value(java_string); | |
| 348 int offset = java_lang_String::offset(java_string); | |
| 349 int length = java_lang_String::length(java_string); | |
| 350 if (length != len) { | |
| 351 return false; | |
| 352 } | |
| 353 for (int i = 0; i < len; i++) { | |
| 354 if (value->char_at(i + offset) != chars[i]) { | |
| 355 return false; | |
| 356 } | |
| 357 } | |
| 358 return true; | |
| 359 } | |
| 360 | |
| 361 void java_lang_String::print(Handle java_string, outputStream* st) { | |
| 362 oop obj = java_string(); | |
| 1142 | 363 assert(obj->klass() == SystemDictionary::String_klass(), "must be java_string"); |
| 0 | 364 typeArrayOop value = java_lang_String::value(obj); |
| 365 int offset = java_lang_String::offset(obj); | |
| 366 int length = java_lang_String::length(obj); | |
| 367 | |
| 368 int end = MIN2(length, 100); | |
| 369 if (value == NULL) { | |
| 370 // This can happen if, e.g., printing a String | |
| 371 // object before its initializer has been called | |
| 372 st->print_cr("NULL"); | |
| 373 } else { | |
| 374 st->print("\""); | |
| 375 for (int index = 0; index < length; index++) { | |
| 376 st->print("%c", value->char_at(index + offset)); | |
| 377 } | |
| 378 st->print("\""); | |
| 379 } | |
| 380 } | |
| 381 | |
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382 static void initialize_static_field(fieldDescriptor* fd, TRAPS) { |
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383 Handle mirror (THREAD, fd->field_holder()->java_mirror()); |
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384 assert(mirror.not_null() && fd->is_static(), "just checking"); |
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385 if (fd->has_initial_value()) { |
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386 BasicType t = fd->field_type(); |
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387 switch (t) { |
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388 case T_BYTE: |
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389 mirror()->byte_field_put(fd->offset(), fd->int_initial_value()); |
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390 break; |
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391 case T_BOOLEAN: |
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392 mirror()->bool_field_put(fd->offset(), fd->int_initial_value()); |
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393 break; |
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394 case T_CHAR: |
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395 mirror()->char_field_put(fd->offset(), fd->int_initial_value()); |
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396 break; |
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397 case T_SHORT: |
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398 mirror()->short_field_put(fd->offset(), fd->int_initial_value()); |
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399 break; |
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400 case T_INT: |
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401 mirror()->int_field_put(fd->offset(), fd->int_initial_value()); |
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402 break; |
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403 case T_FLOAT: |
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404 mirror()->float_field_put(fd->offset(), fd->float_initial_value()); |
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405 break; |
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406 case T_DOUBLE: |
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407 mirror()->double_field_put(fd->offset(), fd->double_initial_value()); |
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408 break; |
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409 case T_LONG: |
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410 mirror()->long_field_put(fd->offset(), fd->long_initial_value()); |
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411 break; |
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412 case T_OBJECT: |
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413 { |
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414 #ifdef ASSERT |
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415 TempNewSymbol sym = SymbolTable::new_symbol("Ljava/lang/String;", CHECK); |
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416 assert(fd->signature() == sym, "just checking"); |
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417 #endif |
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418 oop string = fd->string_initial_value(CHECK); |
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419 mirror()->obj_field_put(fd->offset(), string); |
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420 } |
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421 break; |
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422 default: |
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423 THROW_MSG(vmSymbols::java_lang_ClassFormatError(), |
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424 "Illegal ConstantValue attribute in class file"); |
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425 } |
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426 } |
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427 } |
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428 |
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429 |
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430 // During bootstrap, java.lang.Class wasn't loaded so static field |
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431 // offsets were computed without the size added it. Go back and |
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432 // update all the static field offsets to included the size. |
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433 static void fixup_static_field(fieldDescriptor* fd, TRAPS) { |
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434 if (fd->is_static()) { |
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435 int real_offset = fd->offset() + instanceMirrorKlass::offset_of_static_fields(); |
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436 typeArrayOop fields = instanceKlass::cast(fd->field_holder())->fields(); |
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437 fields->short_at_put(fd->index() + instanceKlass::low_offset, extract_low_short_from_int(real_offset)); |
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438 fields->short_at_put(fd->index() + instanceKlass::high_offset, extract_high_short_from_int(real_offset)); |
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439 } |
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440 } |
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441 |
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442 void java_lang_Class::fixup_mirror(KlassHandle k, TRAPS) { |
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443 assert(instanceMirrorKlass::offset_of_static_fields() != 0, "must have been computed already"); |
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444 |
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445 if (k->oop_is_instance()) { |
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446 // Fixup the offsets |
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447 instanceKlass::cast(k())->do_local_static_fields(&fixup_static_field, CHECK); |
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448 } |
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449 create_mirror(k, CHECK); |
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450 } |
| 0 | 451 |
| 452 oop java_lang_Class::create_mirror(KlassHandle k, TRAPS) { | |
| 453 assert(k->java_mirror() == NULL, "should only assign mirror once"); | |
| 454 // Use this moment of initialization to cache modifier_flags also, | |
| 455 // to support Class.getModifiers(). Instance classes recalculate | |
| 456 // the cached flags after the class file is parsed, but before the | |
| 457 // class is put into the system dictionary. | |
| 458 int computed_modifiers = k->compute_modifier_flags(CHECK_0); | |
| 459 k->set_modifier_flags(computed_modifiers); | |
|
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460 if (SystemDictionary::Class_klass_loaded() && (k->oop_is_instance() || k->oop_is_javaArray())) { |
| 0 | 461 // Allocate mirror (java.lang.Class instance) |
|
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462 Handle mirror = instanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(k, CHECK_0); |
| 0 | 463 // Setup indirections |
| 464 mirror->obj_field_put(klass_offset, k()); | |
| 465 k->set_java_mirror(mirror()); | |
|
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466 |
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467 instanceMirrorKlass* mk = instanceMirrorKlass::cast(mirror->klass()); |
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468 java_lang_Class::set_oop_size(mirror(), mk->instance_size(k)); |
|
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469 java_lang_Class::set_static_oop_field_count(mirror(), mk->compute_static_oop_field_count(mirror())); |
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470 |
| 0 | 471 // It might also have a component mirror. This mirror must already exist. |
| 472 if (k->oop_is_javaArray()) { | |
| 473 Handle comp_mirror; | |
| 474 if (k->oop_is_typeArray()) { | |
| 475 BasicType type = typeArrayKlass::cast(k->as_klassOop())->element_type(); | |
| 476 comp_mirror = Universe::java_mirror(type); | |
| 477 assert(comp_mirror.not_null(), "must have primitive mirror"); | |
| 478 } else if (k->oop_is_objArray()) { | |
| 479 klassOop element_klass = objArrayKlass::cast(k->as_klassOop())->element_klass(); | |
| 480 if (element_klass != NULL | |
| 481 && (Klass::cast(element_klass)->oop_is_instance() || | |
| 482 Klass::cast(element_klass)->oop_is_javaArray())) { | |
| 483 comp_mirror = Klass::cast(element_klass)->java_mirror(); | |
| 484 assert(comp_mirror.not_null(), "must have element mirror"); | |
| 485 } | |
| 486 // else some object array internal to the VM, like systemObjArrayKlassObj | |
| 487 } | |
| 488 if (comp_mirror.not_null()) { | |
| 489 // Two-way link between the array klass and its component mirror: | |
| 490 arrayKlass::cast(k->as_klassOop())->set_component_mirror(comp_mirror()); | |
| 491 set_array_klass(comp_mirror(), k->as_klassOop()); | |
| 492 } | |
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493 } else if (k->oop_is_instance()) { |
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494 // Initialize static fields |
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495 instanceKlass::cast(k())->do_local_static_fields(&initialize_static_field, CHECK_NULL); |
| 0 | 496 } |
| 497 return mirror(); | |
| 498 } else { | |
| 499 return NULL; | |
| 500 } | |
| 501 } | |
| 502 | |
| 503 | |
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504 |
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505 int java_lang_Class::oop_size(oop java_class) { |
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506 assert(oop_size_offset != 0, "must be set"); |
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507 return java_class->int_field(oop_size_offset); |
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508 } |
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509 void java_lang_Class::set_oop_size(oop java_class, int size) { |
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510 assert(oop_size_offset != 0, "must be set"); |
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511 java_class->int_field_put(oop_size_offset, size); |
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512 } |
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513 int java_lang_Class::static_oop_field_count(oop java_class) { |
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514 assert(static_oop_field_count_offset != 0, "must be set"); |
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515 return java_class->int_field(static_oop_field_count_offset); |
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516 } |
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517 void java_lang_Class::set_static_oop_field_count(oop java_class, int size) { |
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518 assert(static_oop_field_count_offset != 0, "must be set"); |
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519 java_class->int_field_put(static_oop_field_count_offset, size); |
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520 } |
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521 |
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522 |
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523 |
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524 |
| 0 | 525 oop java_lang_Class::create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS) { |
| 526 // This should be improved by adding a field at the Java level or by | |
| 527 // introducing a new VM klass (see comment in ClassFileParser) | |
|
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528 oop java_class = instanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance((oop)NULL, CHECK_0); |
| 0 | 529 if (type != T_VOID) { |
| 530 klassOop aklass = Universe::typeArrayKlassObj(type); | |
| 531 assert(aklass != NULL, "correct bootstrap"); | |
| 532 set_array_klass(java_class, aklass); | |
| 533 } | |
|
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534 instanceMirrorKlass* mk = instanceMirrorKlass::cast(SystemDictionary::Class_klass()); |
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535 java_lang_Class::set_oop_size(java_class, mk->instance_size(oop(NULL))); |
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536 java_lang_Class::set_static_oop_field_count(java_class, 0); |
| 0 | 537 return java_class; |
| 538 } | |
| 539 | |
| 540 | |
| 541 klassOop java_lang_Class::as_klassOop(oop java_class) { | |
| 542 //%note memory_2 | |
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543 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
| 0 | 544 klassOop k = klassOop(java_class->obj_field(klass_offset)); |
| 545 assert(k == NULL || k->is_klass(), "type check"); | |
| 546 return k; | |
| 547 } | |
| 548 | |
| 549 | |
|
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550 void java_lang_Class::print_signature(oop java_class, outputStream* st) { |
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551 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
|
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552 Symbol* name = NULL; |
|
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553 bool is_instance = false; |
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554 if (is_primitive(java_class)) { |
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555 name = vmSymbols::type_signature(primitive_type(java_class)); |
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556 } else { |
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557 klassOop k = as_klassOop(java_class); |
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558 is_instance = Klass::cast(k)->oop_is_instance(); |
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559 name = Klass::cast(k)->name(); |
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560 } |
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561 if (name == NULL) { |
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562 st->print("<null>"); |
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563 return; |
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564 } |
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565 if (is_instance) st->print("L"); |
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566 st->write((char*) name->base(), (int) name->utf8_length()); |
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567 if (is_instance) st->print(";"); |
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568 } |
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569 |
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570 Symbol* java_lang_Class::as_signature(oop java_class, bool intern_if_not_found, TRAPS) { |
|
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571 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
|
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572 Symbol* name; |
|
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573 if (is_primitive(java_class)) { |
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574 name = vmSymbols::type_signature(primitive_type(java_class)); |
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575 // Because this can create a new symbol, the caller has to decrement |
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576 // the refcount, so make adjustment here and below for symbols returned |
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577 // that are not created or incremented due to a successful lookup. |
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578 name->increment_refcount(); |
|
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579 } else { |
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580 klassOop k = as_klassOop(java_class); |
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581 if (!Klass::cast(k)->oop_is_instance()) { |
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582 name = Klass::cast(k)->name(); |
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583 name->increment_refcount(); |
|
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584 } else { |
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585 ResourceMark rm; |
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586 const char* sigstr = Klass::cast(k)->signature_name(); |
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587 int siglen = (int) strlen(sigstr); |
|
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588 if (!intern_if_not_found) { |
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589 name = SymbolTable::probe(sigstr, siglen); |
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590 } else { |
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591 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
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592 } |
|
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593 } |
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594 } |
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595 return name; |
|
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596 } |
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597 |
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|
598 |
| 0 | 599 klassOop java_lang_Class::array_klass(oop java_class) { |
| 600 klassOop k = klassOop(java_class->obj_field(array_klass_offset)); | |
| 601 assert(k == NULL || k->is_klass() && Klass::cast(k)->oop_is_javaArray(), "should be array klass"); | |
| 602 return k; | |
| 603 } | |
| 604 | |
| 605 | |
| 606 void java_lang_Class::set_array_klass(oop java_class, klassOop klass) { | |
| 607 assert(klass->is_klass() && Klass::cast(klass)->oop_is_javaArray(), "should be array klass"); | |
| 608 java_class->obj_field_put(array_klass_offset, klass); | |
| 609 } | |
| 610 | |
| 611 | |
| 612 methodOop java_lang_Class::resolved_constructor(oop java_class) { | |
| 613 oop constructor = java_class->obj_field(resolved_constructor_offset); | |
| 614 assert(constructor == NULL || constructor->is_method(), "should be method"); | |
| 615 return methodOop(constructor); | |
| 616 } | |
| 617 | |
| 618 | |
| 619 void java_lang_Class::set_resolved_constructor(oop java_class, methodOop constructor) { | |
| 620 assert(constructor->is_method(), "should be method"); | |
| 621 java_class->obj_field_put(resolved_constructor_offset, constructor); | |
| 622 } | |
| 623 | |
| 624 | |
| 625 bool java_lang_Class::is_primitive(oop java_class) { | |
|
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626 // should assert: |
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627 //assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
| 0 | 628 klassOop k = klassOop(java_class->obj_field(klass_offset)); |
| 629 return k == NULL; | |
| 630 } | |
| 631 | |
| 632 | |
| 633 BasicType java_lang_Class::primitive_type(oop java_class) { | |
| 634 assert(java_lang_Class::is_primitive(java_class), "just checking"); | |
| 635 klassOop ak = klassOop(java_class->obj_field(array_klass_offset)); | |
| 636 BasicType type = T_VOID; | |
| 637 if (ak != NULL) { | |
| 638 // Note: create_basic_type_mirror above initializes ak to a non-null value. | |
| 639 type = arrayKlass::cast(ak)->element_type(); | |
| 640 } else { | |
| 641 assert(java_class == Universe::void_mirror(), "only valid non-array primitive"); | |
| 642 } | |
| 643 assert(Universe::java_mirror(type) == java_class, "must be consistent"); | |
| 644 return type; | |
| 645 } | |
| 646 | |
|
665
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647 BasicType java_lang_Class::as_BasicType(oop java_class, klassOop* reference_klass) { |
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648 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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649 if (is_primitive(java_class)) { |
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650 if (reference_klass != NULL) |
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651 (*reference_klass) = NULL; |
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652 return primitive_type(java_class); |
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653 } else { |
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654 if (reference_klass != NULL) |
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655 (*reference_klass) = as_klassOop(java_class); |
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656 return T_OBJECT; |
|
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657 } |
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658 } |
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659 |
| 0 | 660 |
| 661 oop java_lang_Class::primitive_mirror(BasicType t) { | |
| 662 oop mirror = Universe::java_mirror(t); | |
| 1142 | 663 assert(mirror != NULL && mirror->is_a(SystemDictionary::Class_klass()), "must be a Class"); |
| 0 | 664 assert(java_lang_Class::is_primitive(mirror), "must be primitive"); |
| 665 return mirror; | |
| 666 } | |
| 667 | |
| 668 bool java_lang_Class::offsets_computed = false; | |
| 669 int java_lang_Class::classRedefinedCount_offset = -1; | |
| 514 | 670 int java_lang_Class::parallelCapable_offset = -1; |
| 0 | 671 |
| 672 void java_lang_Class::compute_offsets() { | |
| 673 assert(!offsets_computed, "offsets should be initialized only once"); | |
| 674 offsets_computed = true; | |
| 675 | |
| 1142 | 676 klassOop k = SystemDictionary::Class_klass(); |
| 0 | 677 // The classRedefinedCount field is only present starting in 1.5, |
| 678 // so don't go fatal. | |
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679 compute_optional_offset(classRedefinedCount_offset, |
| 0 | 680 k, vmSymbols::classRedefinedCount_name(), vmSymbols::int_signature()); |
| 514 | 681 |
| 682 // The field indicating parallelCapable (parallelLockMap) is only present starting in 7, | |
| 1142 | 683 klassOop k1 = SystemDictionary::ClassLoader_klass(); |
| 514 | 684 compute_optional_offset(parallelCapable_offset, |
| 685 k1, vmSymbols::parallelCapable_name(), vmSymbols::concurrenthashmap_signature()); | |
| 686 } | |
| 687 | |
| 688 // For class loader classes, parallelCapable defined | |
| 689 // based on non-null field | |
| 690 // Written to by java.lang.ClassLoader, vm only reads this field, doesn't set it | |
| 691 bool java_lang_Class::parallelCapable(oop class_loader) { | |
| 692 if (!JDK_Version::is_gte_jdk17x_version() | |
| 693 || parallelCapable_offset == -1) { | |
| 694 // Default for backward compatibility is false | |
| 695 return false; | |
| 696 } | |
| 697 return (class_loader->obj_field(parallelCapable_offset) != NULL); | |
| 0 | 698 } |
| 699 | |
| 700 int java_lang_Class::classRedefinedCount(oop the_class_mirror) { | |
| 701 if (!JDK_Version::is_gte_jdk15x_version() | |
| 702 || classRedefinedCount_offset == -1) { | |
| 703 // The classRedefinedCount field is only present starting in 1.5. | |
| 704 // If we don't have an offset for it then just return -1 as a marker. | |
| 705 return -1; | |
| 706 } | |
| 707 | |
| 708 return the_class_mirror->int_field(classRedefinedCount_offset); | |
| 709 } | |
| 710 | |
| 711 void java_lang_Class::set_classRedefinedCount(oop the_class_mirror, int value) { | |
| 712 if (!JDK_Version::is_gte_jdk15x_version() | |
| 713 || classRedefinedCount_offset == -1) { | |
| 714 // The classRedefinedCount field is only present starting in 1.5. | |
| 715 // If we don't have an offset for it then nothing to set. | |
| 716 return; | |
| 717 } | |
| 718 | |
| 719 the_class_mirror->int_field_put(classRedefinedCount_offset, value); | |
| 720 } | |
| 721 | |
| 722 | |
| 723 // Note: JDK1.1 and before had a privateInfo_offset field which was used for the | |
| 724 // platform thread structure, and a eetop offset which was used for thread | |
| 725 // local storage (and unused by the HotSpot VM). In JDK1.2 the two structures | |
| 726 // merged, so in the HotSpot VM we just use the eetop field for the thread | |
| 727 // instead of the privateInfo_offset. | |
| 728 // | |
| 729 // Note: The stackSize field is only present starting in 1.4. | |
| 730 | |
| 731 int java_lang_Thread::_name_offset = 0; | |
| 732 int java_lang_Thread::_group_offset = 0; | |
| 733 int java_lang_Thread::_contextClassLoader_offset = 0; | |
| 734 int java_lang_Thread::_inheritedAccessControlContext_offset = 0; | |
| 735 int java_lang_Thread::_priority_offset = 0; | |
| 736 int java_lang_Thread::_eetop_offset = 0; | |
| 737 int java_lang_Thread::_daemon_offset = 0; | |
| 738 int java_lang_Thread::_stillborn_offset = 0; | |
| 739 int java_lang_Thread::_stackSize_offset = 0; | |
| 740 int java_lang_Thread::_tid_offset = 0; | |
| 741 int java_lang_Thread::_thread_status_offset = 0; | |
| 742 int java_lang_Thread::_park_blocker_offset = 0; | |
| 743 int java_lang_Thread::_park_event_offset = 0 ; | |
| 744 | |
| 745 | |
| 746 void java_lang_Thread::compute_offsets() { | |
| 747 assert(_group_offset == 0, "offsets should be initialized only once"); | |
| 748 | |
| 1142 | 749 klassOop k = SystemDictionary::Thread_klass(); |
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750 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::char_array_signature()); |
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751 compute_offset(_group_offset, k, vmSymbols::group_name(), vmSymbols::threadgroup_signature()); |
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752 compute_offset(_contextClassLoader_offset, k, vmSymbols::contextClassLoader_name(), vmSymbols::classloader_signature()); |
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753 compute_offset(_inheritedAccessControlContext_offset, k, vmSymbols::inheritedAccessControlContext_name(), vmSymbols::accesscontrolcontext_signature()); |
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754 compute_offset(_priority_offset, k, vmSymbols::priority_name(), vmSymbols::int_signature()); |
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755 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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756 compute_offset(_eetop_offset, k, vmSymbols::eetop_name(), vmSymbols::long_signature()); |
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757 compute_offset(_stillborn_offset, k, vmSymbols::stillborn_name(), vmSymbols::bool_signature()); |
| 0 | 758 // The stackSize field is only present starting in 1.4, so don't go fatal. |
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759 compute_optional_offset(_stackSize_offset, k, vmSymbols::stackSize_name(), vmSymbols::long_signature()); |
| 0 | 760 // The tid and thread_status fields are only present starting in 1.5, so don't go fatal. |
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761 compute_optional_offset(_tid_offset, k, vmSymbols::thread_id_name(), vmSymbols::long_signature()); |
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762 compute_optional_offset(_thread_status_offset, k, vmSymbols::thread_status_name(), vmSymbols::int_signature()); |
| 0 | 763 // The parkBlocker field is only present starting in 1.6, so don't go fatal. |
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764 compute_optional_offset(_park_blocker_offset, k, vmSymbols::park_blocker_name(), vmSymbols::object_signature()); |
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765 compute_optional_offset(_park_event_offset, k, vmSymbols::park_event_name(), |
| 0 | 766 vmSymbols::long_signature()); |
| 767 } | |
| 768 | |
| 769 | |
| 770 JavaThread* java_lang_Thread::thread(oop java_thread) { | |
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771 return (JavaThread*)java_thread->address_field(_eetop_offset); |
| 0 | 772 } |
| 773 | |
| 774 | |
| 775 void java_lang_Thread::set_thread(oop java_thread, JavaThread* thread) { | |
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776 java_thread->address_field_put(_eetop_offset, (address)thread); |
| 0 | 777 } |
| 778 | |
| 779 | |
| 780 typeArrayOop java_lang_Thread::name(oop java_thread) { | |
| 781 oop name = java_thread->obj_field(_name_offset); | |
| 782 assert(name == NULL || (name->is_typeArray() && typeArrayKlass::cast(name->klass())->element_type() == T_CHAR), "just checking"); | |
| 783 return typeArrayOop(name); | |
| 784 } | |
| 785 | |
| 786 | |
| 787 void java_lang_Thread::set_name(oop java_thread, typeArrayOop name) { | |
| 788 assert(java_thread->obj_field(_name_offset) == NULL, "name should be NULL"); | |
| 789 java_thread->obj_field_put(_name_offset, name); | |
| 790 } | |
| 791 | |
| 792 | |
| 793 ThreadPriority java_lang_Thread::priority(oop java_thread) { | |
| 794 return (ThreadPriority)java_thread->int_field(_priority_offset); | |
| 795 } | |
| 796 | |
| 797 | |
| 798 void java_lang_Thread::set_priority(oop java_thread, ThreadPriority priority) { | |
| 799 java_thread->int_field_put(_priority_offset, priority); | |
| 800 } | |
| 801 | |
| 802 | |
| 803 oop java_lang_Thread::threadGroup(oop java_thread) { | |
| 804 return java_thread->obj_field(_group_offset); | |
| 805 } | |
| 806 | |
| 807 | |
| 808 bool java_lang_Thread::is_stillborn(oop java_thread) { | |
| 809 return java_thread->bool_field(_stillborn_offset) != 0; | |
| 810 } | |
| 811 | |
| 812 | |
| 813 // We never have reason to turn the stillborn bit off | |
| 814 void java_lang_Thread::set_stillborn(oop java_thread) { | |
| 815 java_thread->bool_field_put(_stillborn_offset, true); | |
| 816 } | |
| 817 | |
| 818 | |
| 819 bool java_lang_Thread::is_alive(oop java_thread) { | |
| 820 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
| 821 return (thr != NULL); | |
| 822 } | |
| 823 | |
| 824 | |
| 825 bool java_lang_Thread::is_daemon(oop java_thread) { | |
| 826 return java_thread->bool_field(_daemon_offset) != 0; | |
| 827 } | |
| 828 | |
| 829 | |
| 830 void java_lang_Thread::set_daemon(oop java_thread) { | |
| 831 java_thread->bool_field_put(_daemon_offset, true); | |
| 832 } | |
| 833 | |
| 834 oop java_lang_Thread::context_class_loader(oop java_thread) { | |
| 835 return java_thread->obj_field(_contextClassLoader_offset); | |
| 836 } | |
| 837 | |
| 838 oop java_lang_Thread::inherited_access_control_context(oop java_thread) { | |
| 839 return java_thread->obj_field(_inheritedAccessControlContext_offset); | |
| 840 } | |
| 841 | |
| 842 | |
| 843 jlong java_lang_Thread::stackSize(oop java_thread) { | |
| 844 // The stackSize field is only present starting in 1.4 | |
| 845 if (_stackSize_offset > 0) { | |
| 846 assert(JDK_Version::is_gte_jdk14x_version(), "sanity check"); | |
| 847 return java_thread->long_field(_stackSize_offset); | |
| 848 } else { | |
| 849 return 0; | |
| 850 } | |
| 851 } | |
| 852 | |
| 853 // Write the thread status value to threadStatus field in java.lang.Thread java class. | |
| 854 void java_lang_Thread::set_thread_status(oop java_thread, | |
| 855 java_lang_Thread::ThreadStatus status) { | |
| 856 assert(JavaThread::current()->thread_state() == _thread_in_vm, "Java Thread is not running in vm"); | |
| 857 // The threadStatus is only present starting in 1.5 | |
| 858 if (_thread_status_offset > 0) { | |
| 859 java_thread->int_field_put(_thread_status_offset, status); | |
| 860 } | |
| 861 } | |
| 862 | |
| 863 // Read thread status value from threadStatus field in java.lang.Thread java class. | |
| 864 java_lang_Thread::ThreadStatus java_lang_Thread::get_thread_status(oop java_thread) { | |
| 865 assert(Thread::current()->is_VM_thread() || | |
| 866 JavaThread::current()->thread_state() == _thread_in_vm, | |
| 867 "Java Thread is not running in vm"); | |
| 868 // The threadStatus is only present starting in 1.5 | |
| 869 if (_thread_status_offset > 0) { | |
| 870 return (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
| 871 } else { | |
| 872 // All we can easily figure out is if it is alive, but that is | |
| 873 // enough info for a valid unknown status. | |
| 874 // These aren't restricted to valid set ThreadStatus values, so | |
| 875 // use JVMTI values and cast. | |
| 876 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
| 877 if (thr == NULL) { | |
| 878 // the thread hasn't run yet or is in the process of exiting | |
| 879 return NEW; | |
| 880 } | |
| 881 return (java_lang_Thread::ThreadStatus)JVMTI_THREAD_STATE_ALIVE; | |
| 882 } | |
| 883 } | |
| 884 | |
| 885 | |
| 886 jlong java_lang_Thread::thread_id(oop java_thread) { | |
| 887 // The thread ID field is only present starting in 1.5 | |
| 888 if (_tid_offset > 0) { | |
| 889 return java_thread->long_field(_tid_offset); | |
| 890 } else { | |
| 891 return 0; | |
| 892 } | |
| 893 } | |
| 894 | |
| 895 oop java_lang_Thread::park_blocker(oop java_thread) { | |
| 242 | 896 assert(JDK_Version::current().supports_thread_park_blocker() && |
| 897 _park_blocker_offset != 0, "Must support parkBlocker field"); | |
| 0 | 898 |
| 899 if (_park_blocker_offset > 0) { | |
| 900 return java_thread->obj_field(_park_blocker_offset); | |
| 901 } | |
| 902 | |
| 903 return NULL; | |
| 904 } | |
| 905 | |
| 906 jlong java_lang_Thread::park_event(oop java_thread) { | |
| 907 if (_park_event_offset > 0) { | |
| 908 return java_thread->long_field(_park_event_offset); | |
| 909 } | |
| 910 return 0; | |
| 911 } | |
| 912 | |
| 913 bool java_lang_Thread::set_park_event(oop java_thread, jlong ptr) { | |
| 914 if (_park_event_offset > 0) { | |
| 915 java_thread->long_field_put(_park_event_offset, ptr); | |
| 916 return true; | |
| 917 } | |
| 918 return false; | |
| 919 } | |
| 920 | |
| 921 | |
| 922 const char* java_lang_Thread::thread_status_name(oop java_thread) { | |
| 923 assert(JDK_Version::is_gte_jdk15x_version() && _thread_status_offset != 0, "Must have thread status"); | |
| 924 ThreadStatus status = (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
| 925 switch (status) { | |
| 926 case NEW : return "NEW"; | |
| 927 case RUNNABLE : return "RUNNABLE"; | |
| 928 case SLEEPING : return "TIMED_WAITING (sleeping)"; | |
| 929 case IN_OBJECT_WAIT : return "WAITING (on object monitor)"; | |
| 930 case IN_OBJECT_WAIT_TIMED : return "TIMED_WAITING (on object monitor)"; | |
| 931 case PARKED : return "WAITING (parking)"; | |
| 932 case PARKED_TIMED : return "TIMED_WAITING (parking)"; | |
| 933 case BLOCKED_ON_MONITOR_ENTER : return "BLOCKED (on object monitor)"; | |
| 934 case TERMINATED : return "TERMINATED"; | |
| 935 default : return "UNKNOWN"; | |
| 936 }; | |
| 937 } | |
| 938 int java_lang_ThreadGroup::_parent_offset = 0; | |
| 939 int java_lang_ThreadGroup::_name_offset = 0; | |
| 940 int java_lang_ThreadGroup::_threads_offset = 0; | |
| 941 int java_lang_ThreadGroup::_groups_offset = 0; | |
| 942 int java_lang_ThreadGroup::_maxPriority_offset = 0; | |
| 943 int java_lang_ThreadGroup::_destroyed_offset = 0; | |
| 944 int java_lang_ThreadGroup::_daemon_offset = 0; | |
| 945 int java_lang_ThreadGroup::_vmAllowSuspension_offset = 0; | |
| 946 int java_lang_ThreadGroup::_nthreads_offset = 0; | |
| 947 int java_lang_ThreadGroup::_ngroups_offset = 0; | |
| 948 | |
| 949 oop java_lang_ThreadGroup::parent(oop java_thread_group) { | |
| 950 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 951 return java_thread_group->obj_field(_parent_offset); | |
| 952 } | |
| 953 | |
| 954 // ("name as oop" accessor is not necessary) | |
| 955 | |
| 956 typeArrayOop java_lang_ThreadGroup::name(oop java_thread_group) { | |
| 957 oop name = java_thread_group->obj_field(_name_offset); | |
| 958 // ThreadGroup.name can be null | |
| 959 return name == NULL ? (typeArrayOop)NULL : java_lang_String::value(name); | |
| 960 } | |
| 961 | |
| 962 int java_lang_ThreadGroup::nthreads(oop java_thread_group) { | |
| 963 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 964 return java_thread_group->int_field(_nthreads_offset); | |
| 965 } | |
| 966 | |
| 967 objArrayOop java_lang_ThreadGroup::threads(oop java_thread_group) { | |
| 968 oop threads = java_thread_group->obj_field(_threads_offset); | |
| 969 assert(threads != NULL, "threadgroups should have threads"); | |
| 970 assert(threads->is_objArray(), "just checking"); // Todo: Add better type checking code | |
| 971 return objArrayOop(threads); | |
| 972 } | |
| 973 | |
| 974 int java_lang_ThreadGroup::ngroups(oop java_thread_group) { | |
| 975 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 976 return java_thread_group->int_field(_ngroups_offset); | |
| 977 } | |
| 978 | |
| 979 objArrayOop java_lang_ThreadGroup::groups(oop java_thread_group) { | |
| 980 oop groups = java_thread_group->obj_field(_groups_offset); | |
| 981 assert(groups == NULL || groups->is_objArray(), "just checking"); // Todo: Add better type checking code | |
| 982 return objArrayOop(groups); | |
| 983 } | |
| 984 | |
| 985 ThreadPriority java_lang_ThreadGroup::maxPriority(oop java_thread_group) { | |
| 986 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 987 return (ThreadPriority) java_thread_group->int_field(_maxPriority_offset); | |
| 988 } | |
| 989 | |
| 990 bool java_lang_ThreadGroup::is_destroyed(oop java_thread_group) { | |
| 991 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 992 return java_thread_group->bool_field(_destroyed_offset) != 0; | |
| 993 } | |
| 994 | |
| 995 bool java_lang_ThreadGroup::is_daemon(oop java_thread_group) { | |
| 996 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 997 return java_thread_group->bool_field(_daemon_offset) != 0; | |
| 998 } | |
| 999 | |
| 1000 bool java_lang_ThreadGroup::is_vmAllowSuspension(oop java_thread_group) { | |
| 1001 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1002 return java_thread_group->bool_field(_vmAllowSuspension_offset) != 0; | |
| 1003 } | |
| 1004 | |
| 1005 void java_lang_ThreadGroup::compute_offsets() { | |
| 1006 assert(_parent_offset == 0, "offsets should be initialized only once"); | |
| 1007 | |
| 1142 | 1008 klassOop k = SystemDictionary::ThreadGroup_klass(); |
| 0 | 1009 |
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1010 compute_offset(_parent_offset, k, vmSymbols::parent_name(), vmSymbols::threadgroup_signature()); |
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1011 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1012 compute_offset(_threads_offset, k, vmSymbols::threads_name(), vmSymbols::thread_array_signature()); |
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1013 compute_offset(_groups_offset, k, vmSymbols::groups_name(), vmSymbols::threadgroup_array_signature()); |
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1014 compute_offset(_maxPriority_offset, k, vmSymbols::maxPriority_name(), vmSymbols::int_signature()); |
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1015 compute_offset(_destroyed_offset, k, vmSymbols::destroyed_name(), vmSymbols::bool_signature()); |
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1016 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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1017 compute_offset(_vmAllowSuspension_offset, k, vmSymbols::vmAllowSuspension_name(), vmSymbols::bool_signature()); |
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1018 compute_offset(_nthreads_offset, k, vmSymbols::nthreads_name(), vmSymbols::int_signature()); |
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1019 compute_offset(_ngroups_offset, k, vmSymbols::ngroups_name(), vmSymbols::int_signature()); |
| 0 | 1020 } |
| 1021 | |
| 1022 oop java_lang_Throwable::backtrace(oop throwable) { | |
| 1023 return throwable->obj_field_acquire(backtrace_offset); | |
| 1024 } | |
| 1025 | |
| 1026 | |
| 1027 void java_lang_Throwable::set_backtrace(oop throwable, oop value) { | |
| 1028 throwable->release_obj_field_put(backtrace_offset, value); | |
| 1029 } | |
| 1030 | |
| 1031 | |
| 1032 oop java_lang_Throwable::message(oop throwable) { | |
| 1033 return throwable->obj_field(detailMessage_offset); | |
| 1034 } | |
| 1035 | |
| 1036 | |
| 1037 oop java_lang_Throwable::message(Handle throwable) { | |
| 1038 return throwable->obj_field(detailMessage_offset); | |
| 1039 } | |
| 1040 | |
| 1041 | |
| 1042 void java_lang_Throwable::set_message(oop throwable, oop value) { | |
| 1043 throwable->obj_field_put(detailMessage_offset, value); | |
| 1044 } | |
| 1045 | |
| 1046 | |
| 1047 void java_lang_Throwable::clear_stacktrace(oop throwable) { | |
| 1048 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
| 1049 throwable->obj_field_put(stackTrace_offset, NULL); | |
| 1050 } | |
| 1051 | |
| 1052 | |
| 1053 void java_lang_Throwable::print(oop throwable, outputStream* st) { | |
| 1054 ResourceMark rm; | |
| 1055 klassOop k = throwable->klass(); | |
| 1056 assert(k != NULL, "just checking"); | |
| 1057 st->print("%s", instanceKlass::cast(k)->external_name()); | |
| 1058 oop msg = message(throwable); | |
| 1059 if (msg != NULL) { | |
| 1060 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
| 1061 } | |
| 1062 } | |
| 1063 | |
| 1064 | |
| 1065 void java_lang_Throwable::print(Handle throwable, outputStream* st) { | |
| 1066 ResourceMark rm; | |
| 1067 klassOop k = throwable->klass(); | |
| 1068 assert(k != NULL, "just checking"); | |
| 1069 st->print("%s", instanceKlass::cast(k)->external_name()); | |
| 1070 oop msg = message(throwable); | |
| 1071 if (msg != NULL) { | |
| 1072 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
| 1073 } | |
| 1074 } | |
| 1075 | |
| 1076 // Print stack trace element to resource allocated buffer | |
| 1077 char* java_lang_Throwable::print_stack_element_to_buffer(methodOop method, int bci) { | |
| 1078 // Get strings and string lengths | |
| 1079 instanceKlass* klass = instanceKlass::cast(method->method_holder()); | |
| 1080 const char* klass_name = klass->external_name(); | |
| 1081 int buf_len = (int)strlen(klass_name); | |
| 1082 char* source_file_name; | |
| 1083 if (klass->source_file_name() == NULL) { | |
| 1084 source_file_name = NULL; | |
| 1085 } else { | |
| 1086 source_file_name = klass->source_file_name()->as_C_string(); | |
| 1087 buf_len += (int)strlen(source_file_name); | |
| 1088 } | |
| 1089 char* method_name = method->name()->as_C_string(); | |
| 1090 buf_len += (int)strlen(method_name); | |
| 1091 | |
| 1092 // Allocate temporary buffer with extra space for formatting and line number | |
| 1093 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64); | |
| 1094 | |
| 1095 // Print stack trace line in buffer | |
| 1096 sprintf(buf, "\tat %s.%s", klass_name, method_name); | |
| 1097 if (method->is_native()) { | |
| 1098 strcat(buf, "(Native Method)"); | |
| 1099 } else { | |
| 1100 int line_number = method->line_number_from_bci(bci); | |
| 1101 if (source_file_name != NULL && (line_number != -1)) { | |
| 1102 // Sourcename and linenumber | |
| 1103 sprintf(buf + (int)strlen(buf), "(%s:%d)", source_file_name, line_number); | |
| 1104 } else if (source_file_name != NULL) { | |
| 1105 // Just sourcename | |
| 1106 sprintf(buf + (int)strlen(buf), "(%s)", source_file_name); | |
| 1107 } else { | |
| 1108 // Neither soucename and linenumber | |
| 1109 sprintf(buf + (int)strlen(buf), "(Unknown Source)"); | |
| 1110 } | |
| 1111 nmethod* nm = method->code(); | |
| 1112 if (WizardMode && nm != NULL) { | |
|
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|
1113 sprintf(buf + (int)strlen(buf), "(nmethod " PTR_FORMAT ")", (intptr_t)nm); |
| 0 | 1114 } |
| 1115 } | |
| 1116 | |
| 1117 return buf; | |
| 1118 } | |
| 1119 | |
| 1120 | |
| 1121 void java_lang_Throwable::print_stack_element(Handle stream, methodOop method, int bci) { | |
| 1122 ResourceMark rm; | |
| 1123 char* buf = print_stack_element_to_buffer(method, bci); | |
| 1124 print_to_stream(stream, buf); | |
| 1125 } | |
| 1126 | |
| 1127 void java_lang_Throwable::print_stack_element(outputStream *st, methodOop method, int bci) { | |
| 1128 ResourceMark rm; | |
| 1129 char* buf = print_stack_element_to_buffer(method, bci); | |
| 1130 st->print_cr("%s", buf); | |
| 1131 } | |
| 1132 | |
| 1133 void java_lang_Throwable::print_to_stream(Handle stream, const char* str) { | |
| 1134 if (stream.is_null()) { | |
| 1135 tty->print_cr("%s", str); | |
| 1136 } else { | |
| 1137 EXCEPTION_MARK; | |
| 1138 JavaValue result(T_VOID); | |
| 1139 Handle arg (THREAD, oopFactory::new_charArray(str, THREAD)); | |
| 1140 if (!HAS_PENDING_EXCEPTION) { | |
| 1141 JavaCalls::call_virtual(&result, | |
| 1142 stream, | |
| 1143 KlassHandle(THREAD, stream->klass()), | |
|
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|
1144 vmSymbols::println_name(), |
|
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|
1145 vmSymbols::char_array_void_signature(), |
| 0 | 1146 arg, |
| 1147 THREAD); | |
| 1148 } | |
| 1149 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
| 1150 if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION; | |
| 1151 } | |
| 1152 | |
| 1153 } | |
| 1154 | |
| 1155 | |
| 1156 const char* java_lang_Throwable::no_stack_trace_message() { | |
| 1157 return "\t<<no stack trace available>>"; | |
| 1158 } | |
| 1159 | |
| 1160 | |
| 1161 // Currently used only for exceptions occurring during startup | |
| 1162 void java_lang_Throwable::print_stack_trace(oop throwable, outputStream* st) { | |
| 1163 Thread *THREAD = Thread::current(); | |
| 1164 Handle h_throwable(THREAD, throwable); | |
| 1165 while (h_throwable.not_null()) { | |
| 1166 objArrayHandle result (THREAD, objArrayOop(backtrace(h_throwable()))); | |
| 1167 if (result.is_null()) { | |
| 1168 st->print_cr(no_stack_trace_message()); | |
| 1169 return; | |
| 1170 } | |
| 1171 | |
| 1172 while (result.not_null()) { | |
| 1173 objArrayHandle methods (THREAD, | |
| 1174 objArrayOop(result->obj_at(trace_methods_offset))); | |
| 1175 typeArrayHandle bcis (THREAD, | |
| 1176 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
| 1177 | |
| 1178 if (methods.is_null() || bcis.is_null()) { | |
| 1179 st->print_cr(no_stack_trace_message()); | |
| 1180 return; | |
| 1181 } | |
| 1182 | |
| 1183 int length = methods()->length(); | |
| 1184 for (int index = 0; index < length; index++) { | |
| 1185 methodOop method = methodOop(methods()->obj_at(index)); | |
| 1186 if (method == NULL) goto handle_cause; | |
| 1187 int bci = bcis->ushort_at(index); | |
| 1188 print_stack_element(st, method, bci); | |
| 1189 } | |
| 1190 result = objArrayHandle(THREAD, objArrayOop(result->obj_at(trace_next_offset))); | |
| 1191 } | |
| 1192 handle_cause: | |
| 1193 { | |
| 1194 EXCEPTION_MARK; | |
| 1195 JavaValue result(T_OBJECT); | |
| 1196 JavaCalls::call_virtual(&result, | |
| 1197 h_throwable, | |
| 1198 KlassHandle(THREAD, h_throwable->klass()), | |
|
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|
1199 vmSymbols::getCause_name(), |
|
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|
1200 vmSymbols::void_throwable_signature(), |
| 0 | 1201 THREAD); |
| 1202 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
| 1203 if (HAS_PENDING_EXCEPTION) { | |
| 1204 CLEAR_PENDING_EXCEPTION; | |
| 1205 h_throwable = Handle(); | |
| 1206 } else { | |
| 1207 h_throwable = Handle(THREAD, (oop) result.get_jobject()); | |
| 1208 if (h_throwable.not_null()) { | |
| 1209 st->print("Caused by: "); | |
| 1210 print(h_throwable, st); | |
| 1211 st->cr(); | |
| 1212 } | |
| 1213 } | |
| 1214 } | |
| 1215 } | |
| 1216 } | |
| 1217 | |
| 1218 | |
| 1219 void java_lang_Throwable::print_stack_trace(oop throwable, oop print_stream) { | |
| 1220 // Note: this is no longer used in Merlin, but we support it for compatibility. | |
| 1221 Thread *thread = Thread::current(); | |
| 1222 Handle stream(thread, print_stream); | |
| 1223 objArrayHandle result (thread, objArrayOop(backtrace(throwable))); | |
| 1224 if (result.is_null()) { | |
| 1225 print_to_stream(stream, no_stack_trace_message()); | |
| 1226 return; | |
| 1227 } | |
| 1228 | |
| 1229 while (result.not_null()) { | |
| 1230 objArrayHandle methods (thread, | |
| 1231 objArrayOop(result->obj_at(trace_methods_offset))); | |
| 1232 typeArrayHandle bcis (thread, | |
| 1233 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
| 1234 | |
| 1235 if (methods.is_null() || bcis.is_null()) { | |
| 1236 print_to_stream(stream, no_stack_trace_message()); | |
| 1237 return; | |
| 1238 } | |
| 1239 | |
| 1240 int length = methods()->length(); | |
| 1241 for (int index = 0; index < length; index++) { | |
| 1242 methodOop method = methodOop(methods()->obj_at(index)); | |
| 1243 if (method == NULL) return; | |
| 1244 int bci = bcis->ushort_at(index); | |
| 1245 print_stack_element(stream, method, bci); | |
| 1246 } | |
| 1247 result = objArrayHandle(thread, objArrayOop(result->obj_at(trace_next_offset))); | |
| 1248 } | |
| 1249 } | |
| 1250 | |
| 1251 // This class provides a simple wrapper over the internal structure of | |
| 1252 // exception backtrace to insulate users of the backtrace from needing | |
| 1253 // to know what it looks like. | |
| 1254 class BacktraceBuilder: public StackObj { | |
| 1255 private: | |
| 1256 Handle _backtrace; | |
| 1257 objArrayOop _head; | |
| 1258 objArrayOop _methods; | |
| 1259 typeArrayOop _bcis; | |
| 1260 int _index; | |
| 1261 No_Safepoint_Verifier _nsv; | |
| 1262 | |
| 1263 public: | |
| 1264 | |
| 1265 enum { | |
| 1266 trace_methods_offset = java_lang_Throwable::trace_methods_offset, | |
| 1267 trace_bcis_offset = java_lang_Throwable::trace_bcis_offset, | |
| 1268 trace_next_offset = java_lang_Throwable::trace_next_offset, | |
| 1269 trace_size = java_lang_Throwable::trace_size, | |
| 1270 trace_chunk_size = java_lang_Throwable::trace_chunk_size | |
| 1271 }; | |
| 1272 | |
| 1273 // constructor for new backtrace | |
|
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|
1274 BacktraceBuilder(TRAPS): _methods(NULL), _bcis(NULL), _head(NULL) { |
| 0 | 1275 expand(CHECK); |
| 1276 _backtrace = _head; | |
| 1277 _index = 0; | |
| 1278 } | |
| 1279 | |
| 1280 void expand(TRAPS) { | |
| 1281 objArrayHandle old_head(THREAD, _head); | |
| 1282 Pause_No_Safepoint_Verifier pnsv(&_nsv); | |
| 1283 | |
| 1284 objArrayOop head = oopFactory::new_objectArray(trace_size, CHECK); | |
| 1285 objArrayHandle new_head(THREAD, head); | |
| 1286 | |
| 1287 objArrayOop methods = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
| 1288 objArrayHandle new_methods(THREAD, methods); | |
| 1289 | |
| 1290 typeArrayOop bcis = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
| 1291 typeArrayHandle new_bcis(THREAD, bcis); | |
| 1292 | |
| 1293 if (!old_head.is_null()) { | |
| 1294 old_head->obj_at_put(trace_next_offset, new_head()); | |
| 1295 } | |
| 1296 new_head->obj_at_put(trace_methods_offset, new_methods()); | |
| 1297 new_head->obj_at_put(trace_bcis_offset, new_bcis()); | |
| 1298 | |
| 1299 _head = new_head(); | |
| 1300 _methods = new_methods(); | |
| 1301 _bcis = new_bcis(); | |
| 1302 _index = 0; | |
| 1303 } | |
| 1304 | |
| 1305 oop backtrace() { | |
| 1306 return _backtrace(); | |
| 1307 } | |
| 1308 | |
| 1309 inline void push(methodOop method, short bci, TRAPS) { | |
| 1310 if (_index >= trace_chunk_size) { | |
| 1311 methodHandle mhandle(THREAD, method); | |
| 1312 expand(CHECK); | |
| 1313 method = mhandle(); | |
| 1314 } | |
| 1315 | |
|
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|
1316 _methods->obj_at_put(_index, method); |
| 0 | 1317 _bcis->ushort_at_put(_index, bci); |
| 1318 _index++; | |
| 1319 } | |
| 1320 | |
| 1321 methodOop current_method() { | |
| 1322 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
| 1323 return methodOop(_methods->obj_at(_index)); | |
| 1324 } | |
| 1325 | |
| 1326 jushort current_bci() { | |
| 1327 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
| 1328 return _bcis->ushort_at(_index); | |
| 1329 } | |
| 1330 }; | |
| 1331 | |
| 1332 | |
|
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1333 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method, TRAPS) { |
| 0 | 1334 if (!StackTraceInThrowable) return; |
| 1335 ResourceMark rm(THREAD); | |
| 1336 | |
| 1337 // Start out by clearing the backtrace for this object, in case the VM | |
| 1338 // runs out of memory while allocating the stack trace | |
| 1339 set_backtrace(throwable(), NULL); | |
| 1340 if (JDK_Version::is_gte_jdk14x_version()) { | |
| 1341 // New since 1.4, clear lazily constructed Java level stacktrace if | |
| 1342 // refilling occurs | |
| 1343 clear_stacktrace(throwable()); | |
| 1344 } | |
| 1345 | |
| 1346 int max_depth = MaxJavaStackTraceDepth; | |
| 1347 JavaThread* thread = (JavaThread*)THREAD; | |
| 1348 BacktraceBuilder bt(CHECK); | |
| 1349 | |
|
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1350 // If there is no Java frame just return the method that was being called |
|
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1351 // with bci 0 |
|
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1352 if (!thread->has_last_Java_frame()) { |
|
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|
1353 if (max_depth >= 1 && method() != NULL) { |
|
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7009923: JSR 292: VM crash in JavaThread::last_frame
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|
1354 bt.push(method(), 0, CHECK); |
|
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|
1355 set_backtrace(throwable(), bt.backtrace()); |
|
01147d8aac1d
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diff
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|
1356 } |
|
01147d8aac1d
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diff
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|
1357 return; |
|
01147d8aac1d
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diff
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|
1358 } |
|
01147d8aac1d
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|
1359 |
| 0 | 1360 // Instead of using vframe directly, this version of fill_in_stack_trace |
| 1361 // basically handles everything by hand. This significantly improved the | |
| 1362 // speed of this method call up to 28.5% on Solaris sparc. 27.1% on Windows. | |
| 1363 // See bug 6333838 for more details. | |
| 1364 // The "ASSERT" here is to verify this method generates the exactly same stack | |
| 1365 // trace as utilizing vframe. | |
| 1366 #ifdef ASSERT | |
| 1367 vframeStream st(thread); | |
| 1368 methodHandle st_method(THREAD, st.method()); | |
| 1369 #endif | |
| 1370 int total_count = 0; | |
| 1371 RegisterMap map(thread, false); | |
| 1372 int decode_offset = 0; | |
| 1373 nmethod* nm = NULL; | |
| 1374 bool skip_fillInStackTrace_check = false; | |
| 1375 bool skip_throwableInit_check = false; | |
| 1376 | |
| 1377 for (frame fr = thread->last_frame(); max_depth != total_count;) { | |
| 1378 methodOop method = NULL; | |
| 1379 int bci = 0; | |
| 1380 | |
| 1381 // Compiled java method case. | |
| 1382 if (decode_offset != 0) { | |
| 1383 DebugInfoReadStream stream(nm, decode_offset); | |
| 1384 decode_offset = stream.read_int(); | |
| 1385 method = (methodOop)nm->oop_at(stream.read_int()); | |
|
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1386 bci = stream.read_bci(); |
| 0 | 1387 } else { |
| 1388 if (fr.is_first_frame()) break; | |
| 1389 address pc = fr.pc(); | |
| 1390 if (fr.is_interpreted_frame()) { | |
| 1391 intptr_t bcx = fr.interpreter_frame_bcx(); | |
| 1392 method = fr.interpreter_frame_method(); | |
| 1393 bci = fr.is_bci(bcx) ? bcx : method->bci_from((address)bcx); | |
| 1394 fr = fr.sender(&map); | |
| 1395 } else { | |
| 1396 CodeBlob* cb = fr.cb(); | |
| 1397 // HMMM QQQ might be nice to have frame return nm as NULL if cb is non-NULL | |
| 1398 // but non nmethod | |
| 1399 fr = fr.sender(&map); | |
| 1400 if (cb == NULL || !cb->is_nmethod()) { | |
| 1401 continue; | |
| 1402 } | |
| 1403 nm = (nmethod*)cb; | |
| 1404 if (nm->method()->is_native()) { | |
| 1405 method = nm->method(); | |
| 1406 bci = 0; | |
| 1407 } else { | |
| 1408 PcDesc* pd = nm->pc_desc_at(pc); | |
| 1409 decode_offset = pd->scope_decode_offset(); | |
| 1410 // if decode_offset is not equal to 0, it will execute the | |
| 1411 // "compiled java method case" at the beginning of the loop. | |
| 1412 continue; | |
| 1413 } | |
| 1414 } | |
| 1415 } | |
| 1416 #ifdef ASSERT | |
|
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1417 assert(st_method() == method && st.bci() == bci, |
|
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1418 "Wrong stack trace"); |
|
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1419 st.next(); |
|
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1420 // vframeStream::method isn't GC-safe so store off a copy |
|
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1421 // of the methodOop in case we GC. |
|
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1422 if (!st.at_end()) { |
|
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1423 st_method = st.method(); |
|
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|
1424 } |
| 0 | 1425 #endif |
|
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1426 |
|
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1427 // the format of the stacktrace will be: |
|
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diff
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|
1428 // - 1 or more fillInStackTrace frames for the exception class (skipped) |
|
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diff
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|
1429 // - 0 or more <init> methods for the exception class (skipped) |
|
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1430 // - rest of the stack |
|
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|
1431 |
| 0 | 1432 if (!skip_fillInStackTrace_check) { |
|
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1433 if ((method->name() == vmSymbols::fillInStackTrace_name() || |
|
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1434 method->name() == vmSymbols::fillInStackTrace0_name()) && |
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1435 throwable->is_a(method->method_holder())) { |
| 0 | 1436 continue; |
| 1437 } | |
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1438 else { |
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1439 skip_fillInStackTrace_check = true; // gone past them all |
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1440 } |
| 0 | 1441 } |
| 1442 if (!skip_throwableInit_check) { | |
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1443 assert(skip_fillInStackTrace_check, "logic error in backtrace filtering"); |
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1444 |
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1445 // skip <init> methods of the exception class and superclasses |
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1446 // This is simlar to classic VM. |
| 0 | 1447 if (method->name() == vmSymbols::object_initializer_name() && |
| 1448 throwable->is_a(method->method_holder())) { | |
| 1449 continue; | |
| 1450 } else { | |
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1451 // there are none or we've seen them all - either way stop checking |
| 0 | 1452 skip_throwableInit_check = true; |
| 1453 } | |
| 1454 } | |
| 1455 bt.push(method, bci, CHECK); | |
| 1456 total_count++; | |
| 1457 } | |
| 1458 | |
| 1459 // Put completed stack trace into throwable object | |
| 1460 set_backtrace(throwable(), bt.backtrace()); | |
| 1461 } | |
| 1462 | |
|
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1463 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method) { |
| 0 | 1464 // No-op if stack trace is disabled |
| 1465 if (!StackTraceInThrowable) { | |
| 1466 return; | |
| 1467 } | |
| 1468 | |
| 1469 // Disable stack traces for some preallocated out of memory errors | |
| 1470 if (!Universe::should_fill_in_stack_trace(throwable)) { | |
| 1471 return; | |
| 1472 } | |
| 1473 | |
| 1474 PRESERVE_EXCEPTION_MARK; | |
| 1475 | |
| 1476 JavaThread* thread = JavaThread::active(); | |
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1477 fill_in_stack_trace(throwable, method, thread); |
| 0 | 1478 // ignore exceptions thrown during stack trace filling |
| 1479 CLEAR_PENDING_EXCEPTION; | |
| 1480 } | |
| 1481 | |
| 1482 void java_lang_Throwable::allocate_backtrace(Handle throwable, TRAPS) { | |
| 1483 // Allocate stack trace - backtrace is created but not filled in | |
| 1484 | |
| 1485 // No-op if stack trace is disabled | |
| 1486 if (!StackTraceInThrowable) return; | |
| 1487 | |
| 1488 objArrayOop h_oop = oopFactory::new_objectArray(trace_size, CHECK); | |
| 1489 objArrayHandle backtrace (THREAD, h_oop); | |
| 1490 objArrayOop m_oop = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
| 1491 objArrayHandle methods (THREAD, m_oop); | |
| 1492 typeArrayOop b = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
| 1493 typeArrayHandle bcis(THREAD, b); | |
| 1494 | |
| 1495 // backtrace has space for one chunk (next is NULL) | |
| 1496 backtrace->obj_at_put(trace_methods_offset, methods()); | |
| 1497 backtrace->obj_at_put(trace_bcis_offset, bcis()); | |
| 1498 set_backtrace(throwable(), backtrace()); | |
| 1499 } | |
| 1500 | |
| 1501 | |
| 1502 void java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(Handle throwable) { | |
| 1503 // Fill in stack trace into preallocated backtrace (no GC) | |
| 1504 | |
| 1505 // No-op if stack trace is disabled | |
| 1506 if (!StackTraceInThrowable) return; | |
| 1507 | |
| 1142 | 1508 assert(throwable->is_a(SystemDictionary::Throwable_klass()), "sanity check"); |
| 0 | 1509 |
| 1510 oop backtrace = java_lang_Throwable::backtrace(throwable()); | |
| 1511 assert(backtrace != NULL, "backtrace not preallocated"); | |
| 1512 | |
| 1513 oop m = objArrayOop(backtrace)->obj_at(trace_methods_offset); | |
| 1514 objArrayOop methods = objArrayOop(m); | |
| 1515 assert(methods != NULL && methods->length() > 0, "method array not preallocated"); | |
| 1516 | |
| 1517 oop b = objArrayOop(backtrace)->obj_at(trace_bcis_offset); | |
| 1518 typeArrayOop bcis = typeArrayOop(b); | |
| 1519 assert(bcis != NULL, "bci array not preallocated"); | |
| 1520 | |
| 1521 assert(methods->length() == bcis->length(), "method and bci arrays should match"); | |
| 1522 | |
| 1523 JavaThread* thread = JavaThread::current(); | |
| 1524 ResourceMark rm(thread); | |
| 1525 vframeStream st(thread); | |
| 1526 | |
| 1527 // Unlike fill_in_stack_trace we do not skip fillInStackTrace or throwable init | |
| 1528 // methods as preallocated errors aren't created by "java" code. | |
| 1529 | |
| 1530 // fill in as much stack trace as possible | |
| 1531 int max_chunks = MIN2(methods->length(), (int)MaxJavaStackTraceDepth); | |
| 1532 int chunk_count = 0; | |
| 1533 | |
| 1534 for (;!st.at_end(); st.next()) { | |
| 1535 // add element | |
| 1536 bcis->ushort_at_put(chunk_count, st.bci()); | |
| 1537 methods->obj_at_put(chunk_count, st.method()); | |
| 1538 | |
| 1539 chunk_count++; | |
| 1540 | |
| 1541 // Bail-out for deep stacks | |
| 1542 if (chunk_count >= max_chunks) break; | |
| 1543 } | |
| 1544 } | |
| 1545 | |
| 1546 | |
| 1547 int java_lang_Throwable::get_stack_trace_depth(oop throwable, TRAPS) { | |
| 1548 if (throwable == NULL) { | |
| 1549 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
| 1550 } | |
| 1551 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
| 1552 int depth = 0; | |
| 1553 if (chunk != NULL) { | |
| 1554 // Iterate over chunks and count full ones | |
| 1555 while (true) { | |
| 1556 objArrayOop next = objArrayOop(chunk->obj_at(trace_next_offset)); | |
| 1557 if (next == NULL) break; | |
| 1558 depth += trace_chunk_size; | |
| 1559 chunk = next; | |
| 1560 } | |
| 1561 assert(chunk != NULL && chunk->obj_at(trace_next_offset) == NULL, "sanity check"); | |
| 1562 // Count element in remaining partial chunk | |
| 1563 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
| 1564 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
| 1565 assert(methods != NULL && bcis != NULL, "sanity check"); | |
| 1566 for (int i = 0; i < methods->length(); i++) { | |
| 1567 if (methods->obj_at(i) == NULL) break; | |
| 1568 depth++; | |
| 1569 } | |
| 1570 } | |
| 1571 return depth; | |
| 1572 } | |
| 1573 | |
| 1574 | |
| 1575 oop java_lang_Throwable::get_stack_trace_element(oop throwable, int index, TRAPS) { | |
| 1576 if (throwable == NULL) { | |
| 1577 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
| 1578 } | |
| 1579 if (index < 0) { | |
| 1580 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1581 } | |
| 1582 // Compute how many chunks to skip and index into actual chunk | |
| 1583 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
| 1584 int skip_chunks = index / trace_chunk_size; | |
| 1585 int chunk_index = index % trace_chunk_size; | |
| 1586 while (chunk != NULL && skip_chunks > 0) { | |
| 1587 chunk = objArrayOop(chunk->obj_at(trace_next_offset)); | |
| 1588 skip_chunks--; | |
| 1589 } | |
| 1590 if (chunk == NULL) { | |
| 1591 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1592 } | |
| 1593 // Get method,bci from chunk | |
| 1594 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
| 1595 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
| 1596 assert(methods != NULL && bcis != NULL, "sanity check"); | |
| 1597 methodHandle method(THREAD, methodOop(methods->obj_at(chunk_index))); | |
| 1598 int bci = bcis->ushort_at(chunk_index); | |
| 1599 // Chunk can be partial full | |
| 1600 if (method.is_null()) { | |
| 1601 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1602 } | |
| 1603 | |
| 1604 oop element = java_lang_StackTraceElement::create(method, bci, CHECK_0); | |
| 1605 return element; | |
| 1606 } | |
| 1607 | |
| 1608 oop java_lang_StackTraceElement::create(methodHandle method, int bci, TRAPS) { | |
| 1609 // SystemDictionary::stackTraceElement_klass() will be null for pre-1.4 JDKs | |
| 1610 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
| 1611 | |
| 1612 // Allocate java.lang.StackTraceElement instance | |
| 1142 | 1613 klassOop k = SystemDictionary::StackTraceElement_klass(); |
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1614 assert(k != NULL, "must be loaded in 1.4+"); |
| 0 | 1615 instanceKlassHandle ik (THREAD, k); |
| 1616 if (ik->should_be_initialized()) { | |
| 1617 ik->initialize(CHECK_0); | |
| 1618 } | |
| 1619 | |
| 1620 Handle element = ik->allocate_instance_handle(CHECK_0); | |
| 1621 // Fill in class name | |
| 1622 ResourceMark rm(THREAD); | |
| 1623 const char* str = instanceKlass::cast(method->method_holder())->external_name(); | |
| 1624 oop classname = StringTable::intern((char*) str, CHECK_0); | |
| 1625 java_lang_StackTraceElement::set_declaringClass(element(), classname); | |
| 1626 // Fill in method name | |
| 1627 oop methodname = StringTable::intern(method->name(), CHECK_0); | |
| 1628 java_lang_StackTraceElement::set_methodName(element(), methodname); | |
| 1629 // Fill in source file name | |
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1630 Symbol* source = instanceKlass::cast(method->method_holder())->source_file_name(); |
| 0 | 1631 oop filename = StringTable::intern(source, CHECK_0); |
| 1632 java_lang_StackTraceElement::set_fileName(element(), filename); | |
| 1633 // File in source line number | |
| 1634 int line_number; | |
| 1635 if (method->is_native()) { | |
| 1636 // Negative value different from -1 below, enabling Java code in | |
| 1637 // class java.lang.StackTraceElement to distinguish "native" from | |
| 1638 // "no LineNumberTable". | |
| 1639 line_number = -2; | |
| 1640 } else { | |
| 1641 // Returns -1 if no LineNumberTable, and otherwise actual line number | |
| 1642 line_number = method->line_number_from_bci(bci); | |
| 1643 } | |
| 1644 java_lang_StackTraceElement::set_lineNumber(element(), line_number); | |
| 1645 | |
| 1646 return element(); | |
| 1647 } | |
| 1648 | |
| 1649 | |
| 1650 void java_lang_reflect_AccessibleObject::compute_offsets() { | |
| 1142 | 1651 klassOop k = SystemDictionary::reflect_AccessibleObject_klass(); |
|
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1652 compute_offset(override_offset, k, vmSymbols::override_name(), vmSymbols::bool_signature()); |
| 0 | 1653 } |
| 1654 | |
| 1655 jboolean java_lang_reflect_AccessibleObject::override(oop reflect) { | |
| 1656 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1657 return (jboolean) reflect->bool_field(override_offset); | |
| 1658 } | |
| 1659 | |
| 1660 void java_lang_reflect_AccessibleObject::set_override(oop reflect, jboolean value) { | |
| 1661 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1662 reflect->bool_field_put(override_offset, (int) value); | |
| 1663 } | |
| 1664 | |
| 1665 void java_lang_reflect_Method::compute_offsets() { | |
| 1142 | 1666 klassOop k = SystemDictionary::reflect_Method_klass(); |
|
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1667 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1668 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1669 compute_offset(returnType_offset, k, vmSymbols::returnType_name(), vmSymbols::class_signature()); |
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1670 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1671 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1672 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1673 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 1674 // The generic signature and annotations fields are only present in 1.5 |
| 1675 signature_offset = -1; | |
| 1676 annotations_offset = -1; | |
| 1677 parameter_annotations_offset = -1; | |
| 1678 annotation_default_offset = -1; | |
|
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1679 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1680 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1681 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
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1682 compute_optional_offset(annotation_default_offset, k, vmSymbols::annotation_default_name(), vmSymbols::byte_array_signature()); |
| 0 | 1683 } |
| 1684 | |
| 1685 Handle java_lang_reflect_Method::create(TRAPS) { | |
| 1686 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1142 | 1687 klassOop klass = SystemDictionary::reflect_Method_klass(); |
| 0 | 1688 // This class is eagerly initialized during VM initialization, since we keep a refence |
| 1689 // to one of the methods | |
| 1690 assert(instanceKlass::cast(klass)->is_initialized(), "must be initialized"); | |
| 1691 return instanceKlass::cast(klass)->allocate_instance_handle(CHECK_NH); | |
| 1692 } | |
| 1693 | |
| 1694 oop java_lang_reflect_Method::clazz(oop reflect) { | |
| 1695 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1696 return reflect->obj_field(clazz_offset); | |
| 1697 } | |
| 1698 | |
| 1699 void java_lang_reflect_Method::set_clazz(oop reflect, oop value) { | |
| 1700 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1701 reflect->obj_field_put(clazz_offset, value); | |
| 1702 } | |
| 1703 | |
| 1704 int java_lang_reflect_Method::slot(oop reflect) { | |
| 1705 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1706 return reflect->int_field(slot_offset); | |
| 1707 } | |
| 1708 | |
| 1709 void java_lang_reflect_Method::set_slot(oop reflect, int value) { | |
| 1710 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1711 reflect->int_field_put(slot_offset, value); | |
| 1712 } | |
| 1713 | |
| 1714 oop java_lang_reflect_Method::name(oop method) { | |
| 1715 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1716 return method->obj_field(name_offset); | |
| 1717 } | |
| 1718 | |
| 1719 void java_lang_reflect_Method::set_name(oop method, oop value) { | |
| 1720 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1721 method->obj_field_put(name_offset, value); | |
| 1722 } | |
| 1723 | |
| 1724 oop java_lang_reflect_Method::return_type(oop method) { | |
| 1725 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1726 return method->obj_field(returnType_offset); | |
| 1727 } | |
| 1728 | |
| 1729 void java_lang_reflect_Method::set_return_type(oop method, oop value) { | |
| 1730 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1731 method->obj_field_put(returnType_offset, value); | |
| 1732 } | |
| 1733 | |
| 1734 oop java_lang_reflect_Method::parameter_types(oop method) { | |
| 1735 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1736 return method->obj_field(parameterTypes_offset); | |
| 1737 } | |
| 1738 | |
| 1739 void java_lang_reflect_Method::set_parameter_types(oop method, oop value) { | |
| 1740 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1741 method->obj_field_put(parameterTypes_offset, value); | |
| 1742 } | |
| 1743 | |
| 1744 oop java_lang_reflect_Method::exception_types(oop method) { | |
| 1745 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1746 return method->obj_field(exceptionTypes_offset); | |
| 1747 } | |
| 1748 | |
| 1749 void java_lang_reflect_Method::set_exception_types(oop method, oop value) { | |
| 1750 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1751 method->obj_field_put(exceptionTypes_offset, value); | |
| 1752 } | |
| 1753 | |
| 1754 int java_lang_reflect_Method::modifiers(oop method) { | |
| 1755 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1756 return method->int_field(modifiers_offset); | |
| 1757 } | |
| 1758 | |
| 1759 void java_lang_reflect_Method::set_modifiers(oop method, int value) { | |
| 1760 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1761 method->int_field_put(modifiers_offset, value); | |
| 1762 } | |
| 1763 | |
| 1764 bool java_lang_reflect_Method::has_signature_field() { | |
| 1765 return (signature_offset >= 0); | |
| 1766 } | |
| 1767 | |
| 1768 oop java_lang_reflect_Method::signature(oop method) { | |
| 1769 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1770 assert(has_signature_field(), "signature field must be present"); | |
| 1771 return method->obj_field(signature_offset); | |
| 1772 } | |
| 1773 | |
| 1774 void java_lang_reflect_Method::set_signature(oop method, oop value) { | |
| 1775 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1776 assert(has_signature_field(), "signature field must be present"); | |
| 1777 method->obj_field_put(signature_offset, value); | |
| 1778 } | |
| 1779 | |
| 1780 bool java_lang_reflect_Method::has_annotations_field() { | |
| 1781 return (annotations_offset >= 0); | |
| 1782 } | |
| 1783 | |
| 1784 oop java_lang_reflect_Method::annotations(oop method) { | |
| 1785 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1786 assert(has_annotations_field(), "annotations field must be present"); | |
| 1787 return method->obj_field(annotations_offset); | |
| 1788 } | |
| 1789 | |
| 1790 void java_lang_reflect_Method::set_annotations(oop method, oop value) { | |
| 1791 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1792 assert(has_annotations_field(), "annotations field must be present"); | |
| 1793 method->obj_field_put(annotations_offset, value); | |
| 1794 } | |
| 1795 | |
| 1796 bool java_lang_reflect_Method::has_parameter_annotations_field() { | |
| 1797 return (parameter_annotations_offset >= 0); | |
| 1798 } | |
| 1799 | |
| 1800 oop java_lang_reflect_Method::parameter_annotations(oop method) { | |
| 1801 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1802 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1803 return method->obj_field(parameter_annotations_offset); | |
| 1804 } | |
| 1805 | |
| 1806 void java_lang_reflect_Method::set_parameter_annotations(oop method, oop value) { | |
| 1807 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1808 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1809 method->obj_field_put(parameter_annotations_offset, value); | |
| 1810 } | |
| 1811 | |
| 1812 bool java_lang_reflect_Method::has_annotation_default_field() { | |
| 1813 return (annotation_default_offset >= 0); | |
| 1814 } | |
| 1815 | |
| 1816 oop java_lang_reflect_Method::annotation_default(oop method) { | |
| 1817 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1818 assert(has_annotation_default_field(), "annotation default field must be present"); | |
| 1819 return method->obj_field(annotation_default_offset); | |
| 1820 } | |
| 1821 | |
| 1822 void java_lang_reflect_Method::set_annotation_default(oop method, oop value) { | |
| 1823 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1824 assert(has_annotation_default_field(), "annotation default field must be present"); | |
| 1825 method->obj_field_put(annotation_default_offset, value); | |
| 1826 } | |
| 1827 | |
| 1828 void java_lang_reflect_Constructor::compute_offsets() { | |
| 1142 | 1829 klassOop k = SystemDictionary::reflect_Constructor_klass(); |
|
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1830 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1831 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1832 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1833 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1834 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 1835 // The generic signature and annotations fields are only present in 1.5 |
| 1836 signature_offset = -1; | |
| 1837 annotations_offset = -1; | |
| 1838 parameter_annotations_offset = -1; | |
|
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1839 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1840 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1841 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
| 0 | 1842 } |
| 1843 | |
| 1844 Handle java_lang_reflect_Constructor::create(TRAPS) { | |
| 1845 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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1846 Symbol* name = vmSymbols::java_lang_reflect_Constructor(); |
| 0 | 1847 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
| 1848 instanceKlassHandle klass (THREAD, k); | |
| 1849 // Ensure it is initialized | |
| 1850 klass->initialize(CHECK_NH); | |
| 1851 return klass->allocate_instance_handle(CHECK_NH); | |
| 1852 } | |
| 1853 | |
| 1854 oop java_lang_reflect_Constructor::clazz(oop reflect) { | |
| 1855 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1856 return reflect->obj_field(clazz_offset); | |
| 1857 } | |
| 1858 | |
| 1859 void java_lang_reflect_Constructor::set_clazz(oop reflect, oop value) { | |
| 1860 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1861 reflect->obj_field_put(clazz_offset, value); | |
| 1862 } | |
| 1863 | |
| 1864 oop java_lang_reflect_Constructor::parameter_types(oop constructor) { | |
| 1865 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1866 return constructor->obj_field(parameterTypes_offset); | |
| 1867 } | |
| 1868 | |
| 1869 void java_lang_reflect_Constructor::set_parameter_types(oop constructor, oop value) { | |
| 1870 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1871 constructor->obj_field_put(parameterTypes_offset, value); | |
| 1872 } | |
| 1873 | |
| 1874 oop java_lang_reflect_Constructor::exception_types(oop constructor) { | |
| 1875 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1876 return constructor->obj_field(exceptionTypes_offset); | |
| 1877 } | |
| 1878 | |
| 1879 void java_lang_reflect_Constructor::set_exception_types(oop constructor, oop value) { | |
| 1880 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1881 constructor->obj_field_put(exceptionTypes_offset, value); | |
| 1882 } | |
| 1883 | |
| 1884 int java_lang_reflect_Constructor::slot(oop reflect) { | |
| 1885 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1886 return reflect->int_field(slot_offset); | |
| 1887 } | |
| 1888 | |
| 1889 void java_lang_reflect_Constructor::set_slot(oop reflect, int value) { | |
| 1890 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1891 reflect->int_field_put(slot_offset, value); | |
| 1892 } | |
| 1893 | |
| 1894 int java_lang_reflect_Constructor::modifiers(oop constructor) { | |
| 1895 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1896 return constructor->int_field(modifiers_offset); | |
| 1897 } | |
| 1898 | |
| 1899 void java_lang_reflect_Constructor::set_modifiers(oop constructor, int value) { | |
| 1900 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1901 constructor->int_field_put(modifiers_offset, value); | |
| 1902 } | |
| 1903 | |
| 1904 bool java_lang_reflect_Constructor::has_signature_field() { | |
| 1905 return (signature_offset >= 0); | |
| 1906 } | |
| 1907 | |
| 1908 oop java_lang_reflect_Constructor::signature(oop constructor) { | |
| 1909 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1910 assert(has_signature_field(), "signature field must be present"); | |
| 1911 return constructor->obj_field(signature_offset); | |
| 1912 } | |
| 1913 | |
| 1914 void java_lang_reflect_Constructor::set_signature(oop constructor, oop value) { | |
| 1915 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1916 assert(has_signature_field(), "signature field must be present"); | |
| 1917 constructor->obj_field_put(signature_offset, value); | |
| 1918 } | |
| 1919 | |
| 1920 bool java_lang_reflect_Constructor::has_annotations_field() { | |
| 1921 return (annotations_offset >= 0); | |
| 1922 } | |
| 1923 | |
| 1924 oop java_lang_reflect_Constructor::annotations(oop constructor) { | |
| 1925 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1926 assert(has_annotations_field(), "annotations field must be present"); | |
| 1927 return constructor->obj_field(annotations_offset); | |
| 1928 } | |
| 1929 | |
| 1930 void java_lang_reflect_Constructor::set_annotations(oop constructor, oop value) { | |
| 1931 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1932 assert(has_annotations_field(), "annotations field must be present"); | |
| 1933 constructor->obj_field_put(annotations_offset, value); | |
| 1934 } | |
| 1935 | |
| 1936 bool java_lang_reflect_Constructor::has_parameter_annotations_field() { | |
| 1937 return (parameter_annotations_offset >= 0); | |
| 1938 } | |
| 1939 | |
| 1940 oop java_lang_reflect_Constructor::parameter_annotations(oop method) { | |
| 1941 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1942 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1943 return method->obj_field(parameter_annotations_offset); | |
| 1944 } | |
| 1945 | |
| 1946 void java_lang_reflect_Constructor::set_parameter_annotations(oop method, oop value) { | |
| 1947 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1948 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1949 method->obj_field_put(parameter_annotations_offset, value); | |
| 1950 } | |
| 1951 | |
| 1952 void java_lang_reflect_Field::compute_offsets() { | |
| 1142 | 1953 klassOop k = SystemDictionary::reflect_Field_klass(); |
|
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1954 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1955 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1956 compute_offset(type_offset, k, vmSymbols::type_name(), vmSymbols::class_signature()); |
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1957 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1958 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 1959 // The generic signature and annotations fields are only present in 1.5 |
| 1960 signature_offset = -1; | |
| 1961 annotations_offset = -1; | |
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1962 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1963 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
| 0 | 1964 } |
| 1965 | |
| 1966 Handle java_lang_reflect_Field::create(TRAPS) { | |
| 1967 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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1968 Symbol* name = vmSymbols::java_lang_reflect_Field(); |
| 0 | 1969 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
| 1970 instanceKlassHandle klass (THREAD, k); | |
| 1971 // Ensure it is initialized | |
| 1972 klass->initialize(CHECK_NH); | |
| 1973 return klass->allocate_instance_handle(CHECK_NH); | |
| 1974 } | |
| 1975 | |
| 1976 oop java_lang_reflect_Field::clazz(oop reflect) { | |
| 1977 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1978 return reflect->obj_field(clazz_offset); | |
| 1979 } | |
| 1980 | |
| 1981 void java_lang_reflect_Field::set_clazz(oop reflect, oop value) { | |
| 1982 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1983 reflect->obj_field_put(clazz_offset, value); | |
| 1984 } | |
| 1985 | |
| 1986 oop java_lang_reflect_Field::name(oop field) { | |
| 1987 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1988 return field->obj_field(name_offset); | |
| 1989 } | |
| 1990 | |
| 1991 void java_lang_reflect_Field::set_name(oop field, oop value) { | |
| 1992 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1993 field->obj_field_put(name_offset, value); | |
| 1994 } | |
| 1995 | |
| 1996 oop java_lang_reflect_Field::type(oop field) { | |
| 1997 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1998 return field->obj_field(type_offset); | |
| 1999 } | |
| 2000 | |
| 2001 void java_lang_reflect_Field::set_type(oop field, oop value) { | |
| 2002 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2003 field->obj_field_put(type_offset, value); | |
| 2004 } | |
| 2005 | |
| 2006 int java_lang_reflect_Field::slot(oop reflect) { | |
| 2007 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2008 return reflect->int_field(slot_offset); | |
| 2009 } | |
| 2010 | |
| 2011 void java_lang_reflect_Field::set_slot(oop reflect, int value) { | |
| 2012 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2013 reflect->int_field_put(slot_offset, value); | |
| 2014 } | |
| 2015 | |
| 2016 int java_lang_reflect_Field::modifiers(oop field) { | |
| 2017 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2018 return field->int_field(modifiers_offset); | |
| 2019 } | |
| 2020 | |
| 2021 void java_lang_reflect_Field::set_modifiers(oop field, int value) { | |
| 2022 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2023 field->int_field_put(modifiers_offset, value); | |
| 2024 } | |
| 2025 | |
| 2026 bool java_lang_reflect_Field::has_signature_field() { | |
| 2027 return (signature_offset >= 0); | |
| 2028 } | |
| 2029 | |
| 2030 oop java_lang_reflect_Field::signature(oop field) { | |
| 2031 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2032 assert(has_signature_field(), "signature field must be present"); | |
| 2033 return field->obj_field(signature_offset); | |
| 2034 } | |
| 2035 | |
| 2036 void java_lang_reflect_Field::set_signature(oop field, oop value) { | |
| 2037 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2038 assert(has_signature_field(), "signature field must be present"); | |
| 2039 field->obj_field_put(signature_offset, value); | |
| 2040 } | |
| 2041 | |
| 2042 bool java_lang_reflect_Field::has_annotations_field() { | |
| 2043 return (annotations_offset >= 0); | |
| 2044 } | |
| 2045 | |
| 2046 oop java_lang_reflect_Field::annotations(oop field) { | |
| 2047 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2048 assert(has_annotations_field(), "annotations field must be present"); | |
| 2049 return field->obj_field(annotations_offset); | |
| 2050 } | |
| 2051 | |
| 2052 void java_lang_reflect_Field::set_annotations(oop field, oop value) { | |
| 2053 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2054 assert(has_annotations_field(), "annotations field must be present"); | |
| 2055 field->obj_field_put(annotations_offset, value); | |
| 2056 } | |
| 2057 | |
| 2058 | |
| 2059 void sun_reflect_ConstantPool::compute_offsets() { | |
| 1142 | 2060 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
| 0 | 2061 // This null test can be removed post beta |
| 2062 if (k != NULL) { | |
|
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2063 compute_offset(_cp_oop_offset, k, vmSymbols::constantPoolOop_name(), vmSymbols::object_signature()); |
| 0 | 2064 } |
| 2065 } | |
| 2066 | |
| 2067 | |
| 2068 Handle sun_reflect_ConstantPool::create(TRAPS) { | |
| 2069 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1142 | 2070 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
| 0 | 2071 instanceKlassHandle klass (THREAD, k); |
| 2072 // Ensure it is initialized | |
| 2073 klass->initialize(CHECK_NH); | |
| 2074 return klass->allocate_instance_handle(CHECK_NH); | |
| 2075 } | |
| 2076 | |
| 2077 | |
| 2078 oop sun_reflect_ConstantPool::cp_oop(oop reflect) { | |
| 2079 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2080 return reflect->obj_field(_cp_oop_offset); | |
| 2081 } | |
| 2082 | |
| 2083 | |
| 2084 void sun_reflect_ConstantPool::set_cp_oop(oop reflect, oop value) { | |
| 2085 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2086 reflect->obj_field_put(_cp_oop_offset, value); | |
| 2087 } | |
| 2088 | |
| 2089 void sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets() { | |
| 1142 | 2090 klassOop k = SystemDictionary::reflect_UnsafeStaticFieldAccessorImpl_klass(); |
| 0 | 2091 // This null test can be removed post beta |
| 2092 if (k != NULL) { | |
|
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2093 compute_offset(_base_offset, k, |
| 0 | 2094 vmSymbols::base_name(), vmSymbols::object_signature()); |
| 2095 } | |
| 2096 } | |
| 2097 | |
|
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2098 oop java_lang_boxing_object::initialize_and_allocate(BasicType type, TRAPS) { |
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2099 klassOop k = SystemDictionary::box_klass(type); |
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2100 if (k == NULL) return NULL; |
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2101 instanceKlassHandle h (THREAD, k); |
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2102 if (!h->is_initialized()) h->initialize(CHECK_0); |
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2103 return h->allocate_instance(THREAD); |
| 0 | 2104 } |
| 2105 | |
| 2106 | |
| 2107 oop java_lang_boxing_object::create(BasicType type, jvalue* value, TRAPS) { | |
|
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2108 oop box = initialize_and_allocate(type, CHECK_0); |
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2109 if (box == NULL) return NULL; |
| 0 | 2110 switch (type) { |
| 2111 case T_BOOLEAN: | |
| 2112 box->bool_field_put(value_offset, value->z); | |
| 2113 break; | |
| 2114 case T_CHAR: | |
| 2115 box->char_field_put(value_offset, value->c); | |
| 2116 break; | |
| 2117 case T_FLOAT: | |
| 2118 box->float_field_put(value_offset, value->f); | |
| 2119 break; | |
| 2120 case T_DOUBLE: | |
|
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2121 box->double_field_put(long_value_offset, value->d); |
| 0 | 2122 break; |
| 2123 case T_BYTE: | |
| 2124 box->byte_field_put(value_offset, value->b); | |
| 2125 break; | |
| 2126 case T_SHORT: | |
| 2127 box->short_field_put(value_offset, value->s); | |
| 2128 break; | |
| 2129 case T_INT: | |
| 2130 box->int_field_put(value_offset, value->i); | |
| 2131 break; | |
| 2132 case T_LONG: | |
|
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2133 box->long_field_put(long_value_offset, value->j); |
| 0 | 2134 break; |
| 2135 default: | |
| 2136 return NULL; | |
| 2137 } | |
| 2138 return box; | |
| 2139 } | |
| 2140 | |
| 2141 | |
|
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2142 BasicType java_lang_boxing_object::basic_type(oop box) { |
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2143 if (box == NULL) return T_ILLEGAL; |
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2144 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2145 if (type == T_OBJECT) // 'unknown' value returned by SD::bkt |
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2146 return T_ILLEGAL; |
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2147 return type; |
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2148 } |
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2149 |
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2150 |
| 0 | 2151 BasicType java_lang_boxing_object::get_value(oop box, jvalue* value) { |
|
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2152 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2153 switch (type) { |
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2154 case T_BOOLEAN: |
| 0 | 2155 value->z = box->bool_field(value_offset); |
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2156 break; |
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2157 case T_CHAR: |
| 0 | 2158 value->c = box->char_field(value_offset); |
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2159 break; |
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2160 case T_FLOAT: |
| 0 | 2161 value->f = box->float_field(value_offset); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2162 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2163 case T_DOUBLE: |
|
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
2164 value->d = box->double_field(long_value_offset); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2165 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2166 case T_BYTE: |
| 0 | 2167 value->b = box->byte_field(value_offset); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2168 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2169 case T_SHORT: |
| 0 | 2170 value->s = box->short_field(value_offset); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2171 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2172 case T_INT: |
| 0 | 2173 value->i = box->int_field(value_offset); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2174 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2175 case T_LONG: |
|
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
2176 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
|
2177 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2178 default: |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2179 return T_ILLEGAL; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2180 } // end switch |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2181 return type; |
| 0 | 2182 } |
| 2183 | |
| 2184 | |
| 2185 BasicType java_lang_boxing_object::set_value(oop box, jvalue* value) { | |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2186 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2187 switch (type) { |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2188 case T_BOOLEAN: |
| 0 | 2189 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
|
2190 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2191 case T_CHAR: |
| 0 | 2192 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
|
2193 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2194 case T_FLOAT: |
| 0 | 2195 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
|
2196 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2197 case T_DOUBLE: |
|
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
2198 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
|
2199 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2200 case T_BYTE: |
| 0 | 2201 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
|
2202 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2203 case T_SHORT: |
| 0 | 2204 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
|
2205 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2206 case T_INT: |
| 0 | 2207 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
|
2208 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2209 case T_LONG: |
|
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
2210 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
|
2211 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2212 default: |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2213 return T_ILLEGAL; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2214 } // end switch |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2215 return type; |
| 0 | 2216 } |
| 2217 | |
| 2218 | |
|
665
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2219 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
|
2220 switch (type) { |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2221 case T_BOOLEAN: st->print("%s", value->z ? "true" : "false"); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2222 case T_CHAR: st->print("%d", value->c); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2223 case T_BYTE: st->print("%d", value->b); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2224 case T_SHORT: st->print("%d", value->s); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2225 case T_INT: st->print("%d", value->i); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2226 case T_LONG: st->print(INT64_FORMAT, value->j); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2227 case T_FLOAT: st->print("%f", value->f); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2228 case T_DOUBLE: st->print("%lf", value->d); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2229 default: st->print("type %d?", type); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2230 } |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2231 } |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2232 |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2233 |
| 0 | 2234 // 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
|
2235 oop java_lang_ref_Reference::pending_list_lock() { |
| 1142 | 2236 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
|
2237 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
|
2238 if (UseCompressedOops) { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2239 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
|
2240 } else { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2241 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
|
2242 } |
| 0 | 2243 } |
| 2244 | |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2245 HeapWord *java_lang_ref_Reference::pending_list_addr() { |
| 1142 | 2246 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
|
2247 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
|
2248 // 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
|
2249 return (HeapWord*)addr; |
| 0 | 2250 } |
| 2251 | |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2252 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
|
2253 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
|
2254 if (UseCompressedOops) { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2255 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
|
2256 } else { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2257 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
|
2258 } |
| 0 | 2259 } |
| 2260 | |
| 2261 | |
| 2262 // Support for java_lang_ref_SoftReference | |
| 2263 | |
| 2264 jlong java_lang_ref_SoftReference::timestamp(oop ref) { | |
| 2265 return ref->long_field(timestamp_offset); | |
| 2266 } | |
| 2267 | |
| 2268 jlong java_lang_ref_SoftReference::clock() { | |
| 1142 | 2269 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
|
2270 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
|
2271 return *offset; |
| 0 | 2272 } |
| 2273 | |
| 2274 void java_lang_ref_SoftReference::set_clock(jlong value) { | |
| 1142 | 2275 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
|
2276 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
|
2277 *offset = value; |
| 0 | 2278 } |
| 2279 | |
| 2280 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2281 // Support for java_lang_invoke_MethodHandle |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2282 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2283 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
|
2284 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
|
2285 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
|
2286 int java_lang_invoke_MethodHandle::_vmslots_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2287 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2288 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
|
2289 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
|
2290 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
|
2291 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
|
2292 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
|
2293 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
|
2294 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2295 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
|
2296 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2297 int java_lang_invoke_BoundMethodHandle::_argument_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2298 int java_lang_invoke_BoundMethodHandle::_vmargslot_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2299 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2300 int java_lang_invoke_AdapterMethodHandle::_conversion_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2301 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2302 void java_lang_invoke_MethodHandle::compute_offsets() { |
| 710 | 2303 klassOop k = SystemDictionary::MethodHandle_klass(); |
|
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2379
diff
changeset
|
2304 if (k != NULL && EnableInvokeDynamic) { |
|
2356
72dee110246f
6839872: remove implementation inheritance from JSR 292 APIs
jrose
parents:
2177
diff
changeset
|
2305 bool allow_super = false; |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2306 compute_offset(_type_offset, k, vmSymbols::type_name(), vmSymbols::java_lang_invoke_MethodType_signature(), allow_super); |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2307 compute_offset(_vmtarget_offset, k, vmSymbols::vmtarget_name(), vmSymbols::object_signature(), allow_super); |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2308 compute_offset(_vmentry_offset, k, vmSymbols::vmentry_name(), vmSymbols::machine_word_signature(), allow_super); |
| 710 | 2309 |
| 2310 // Note: MH.vmslots (if it is present) is a hoisted copy of MH.type.form.vmslots. | |
| 2311 // It is optional pending experiments to keep or toss. | |
|
2356
72dee110246f
6839872: remove implementation inheritance from JSR 292 APIs
jrose
parents:
2177
diff
changeset
|
2312 compute_optional_offset(_vmslots_offset, k, vmSymbols::vmslots_name(), vmSymbols::int_signature(), allow_super); |
| 710 | 2313 } |
| 2314 } | |
| 2315 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2316 void java_lang_invoke_MemberName::compute_offsets() { |
| 710 | 2317 klassOop k = SystemDictionary::MemberName_klass(); |
|
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|
2318 if (k != NULL && EnableInvokeDynamic) { |
| 710 | 2319 compute_offset(_clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
| 2320 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); | |
| 2321 compute_offset(_type_offset, k, vmSymbols::type_name(), vmSymbols::object_signature()); | |
| 2322 compute_offset(_flags_offset, k, vmSymbols::flags_name(), vmSymbols::int_signature()); | |
| 2323 compute_offset(_vmtarget_offset, k, vmSymbols::vmtarget_name(), vmSymbols::object_signature()); | |
| 2324 compute_offset(_vmindex_offset, k, vmSymbols::vmindex_name(), vmSymbols::int_signature()); | |
| 2325 } | |
| 2326 } | |
| 2327 | |
|
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|
2328 void java_lang_invoke_DirectMethodHandle::compute_offsets() { |
| 710 | 2329 klassOop k = SystemDictionary::DirectMethodHandle_klass(); |
|
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|
2330 if (k != NULL && EnableInvokeDynamic) { |
| 710 | 2331 compute_offset(_vmindex_offset, k, vmSymbols::vmindex_name(), vmSymbols::int_signature(), true); |
| 2332 } | |
| 2333 } | |
| 2334 | |
|
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|
2335 void java_lang_invoke_BoundMethodHandle::compute_offsets() { |
| 710 | 2336 klassOop k = SystemDictionary::BoundMethodHandle_klass(); |
|
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|
2337 if (k != NULL && EnableInvokeDynamic) { |
| 710 | 2338 compute_offset(_vmargslot_offset, k, vmSymbols::vmargslot_name(), vmSymbols::int_signature(), true); |
| 2339 compute_offset(_argument_offset, k, vmSymbols::argument_name(), vmSymbols::object_signature(), true); | |
| 2340 } | |
| 2341 } | |
| 2342 | |
|
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|
2343 void java_lang_invoke_AdapterMethodHandle::compute_offsets() { |
| 710 | 2344 klassOop k = SystemDictionary::AdapterMethodHandle_klass(); |
|
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|
2345 if (k != NULL && EnableInvokeDynamic) { |
| 710 | 2346 compute_offset(_conversion_offset, k, vmSymbols::conversion_name(), vmSymbols::int_signature(), true); |
| 2347 } | |
| 2348 } | |
| 2349 | |
|
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|
2350 oop java_lang_invoke_MethodHandle::type(oop mh) { |
| 710 | 2351 return mh->obj_field(_type_offset); |
| 2352 } | |
| 2353 | |
|
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|
2354 void java_lang_invoke_MethodHandle::set_type(oop mh, oop mtype) { |
| 710 | 2355 mh->obj_field_put(_type_offset, mtype); |
| 2356 } | |
| 2357 | |
|
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|
2358 int java_lang_invoke_MethodHandle::vmslots(oop mh) { |
| 710 | 2359 int vmslots_offset = _vmslots_offset; |
| 2360 if (vmslots_offset != 0) { | |
| 2361 #ifdef ASSERT | |
| 2362 int x = mh->int_field(vmslots_offset); | |
| 2363 int y = compute_vmslots(mh); | |
| 2364 assert(x == y, "correct hoisted value"); | |
| 2365 #endif | |
| 2366 return mh->int_field(vmslots_offset); | |
| 2367 } else { | |
| 2368 return compute_vmslots(mh); | |
| 2369 } | |
| 2370 } | |
| 2371 | |
| 2372 // if MH.vmslots exists, hoist into it the value of type.form.vmslots | |
|
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|
2373 void java_lang_invoke_MethodHandle::init_vmslots(oop mh) { |
| 710 | 2374 int vmslots_offset = _vmslots_offset; |
| 2375 if (vmslots_offset != 0) { | |
| 2376 mh->int_field_put(vmslots_offset, compute_vmslots(mh)); | |
| 2377 } | |
| 2378 } | |
| 2379 | |
| 2380 // fetch type.form.vmslots, which is the number of JVM stack slots | |
| 2381 // required to carry the arguments of this MH | |
|
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|
2382 int java_lang_invoke_MethodHandle::compute_vmslots(oop mh) { |
| 710 | 2383 oop mtype = type(mh); |
| 2384 if (mtype == NULL) return 0; // Java code would get NPE | |
|
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|
2385 oop form = java_lang_invoke_MethodType::form(mtype); |
| 710 | 2386 if (form == NULL) return 0; // Java code would get NPE |
|
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|
2387 return java_lang_invoke_MethodTypeForm::vmslots(form); |
| 710 | 2388 } |
| 2389 | |
| 2390 // fetch the low-level entry point for this mh | |
|
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|
2391 MethodHandleEntry* java_lang_invoke_MethodHandle::vmentry(oop mh) { |
| 710 | 2392 return (MethodHandleEntry*) mh->address_field(_vmentry_offset); |
| 2393 } | |
| 2394 | |
|
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|
2395 void java_lang_invoke_MethodHandle::set_vmentry(oop mh, MethodHandleEntry* me) { |
| 710 | 2396 assert(_vmentry_offset != 0, "must be present"); |
| 2397 | |
| 2398 // This is always the final step that initializes a valid method handle: | |
| 2399 mh->release_address_field_put(_vmentry_offset, (address) me); | |
| 2400 | |
| 2401 // There should be enough memory barriers on exit from native methods | |
| 2402 // to ensure that the MH is fully initialized to all threads before | |
| 2403 // Java code can publish it in global data structures. | |
| 2404 // But just in case, we use release_address_field_put. | |
| 2405 } | |
| 2406 | |
| 2407 /// MemberName accessors | |
| 2408 | |
|
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|
2409 oop java_lang_invoke_MemberName::clazz(oop mname) { |
| 710 | 2410 assert(is_instance(mname), "wrong type"); |
| 2411 return mname->obj_field(_clazz_offset); | |
| 2412 } | |
| 2413 | |
|
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|
2414 void java_lang_invoke_MemberName::set_clazz(oop mname, oop clazz) { |
| 710 | 2415 assert(is_instance(mname), "wrong type"); |
| 2416 mname->obj_field_put(_clazz_offset, clazz); | |
| 2417 } | |
| 2418 | |
|
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|
2419 oop java_lang_invoke_MemberName::name(oop mname) { |
| 710 | 2420 assert(is_instance(mname), "wrong type"); |
| 2421 return mname->obj_field(_name_offset); | |
| 2422 } | |
| 2423 | |
|
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|
2424 void java_lang_invoke_MemberName::set_name(oop mname, oop name) { |
| 710 | 2425 assert(is_instance(mname), "wrong type"); |
| 2426 mname->obj_field_put(_name_offset, name); | |
| 2427 } | |
| 2428 | |
|
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|
2429 oop java_lang_invoke_MemberName::type(oop mname) { |
| 710 | 2430 assert(is_instance(mname), "wrong type"); |
| 2431 return mname->obj_field(_type_offset); | |
| 2432 } | |
| 2433 | |
|
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|
2434 void java_lang_invoke_MemberName::set_type(oop mname, oop type) { |
| 710 | 2435 assert(is_instance(mname), "wrong type"); |
| 2436 mname->obj_field_put(_type_offset, type); | |
| 2437 } | |
| 2438 | |
|
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|
2439 int java_lang_invoke_MemberName::flags(oop mname) { |
| 710 | 2440 assert(is_instance(mname), "wrong type"); |
| 2441 return mname->int_field(_flags_offset); | |
| 2442 } | |
| 2443 | |
|
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|
2444 void java_lang_invoke_MemberName::set_flags(oop mname, int flags) { |
| 710 | 2445 assert(is_instance(mname), "wrong type"); |
| 2446 mname->int_field_put(_flags_offset, flags); | |
| 2447 } | |
| 2448 | |
|
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|
2449 oop java_lang_invoke_MemberName::vmtarget(oop mname) { |
| 710 | 2450 assert(is_instance(mname), "wrong type"); |
| 2451 return mname->obj_field(_vmtarget_offset); | |
| 2452 } | |
| 2453 | |
|
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diff
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|
2454 void java_lang_invoke_MemberName::set_vmtarget(oop mname, oop ref) { |
| 710 | 2455 assert(is_instance(mname), "wrong type"); |
| 2456 mname->obj_field_put(_vmtarget_offset, ref); | |
| 2457 } | |
| 2458 | |
|
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|
2459 int java_lang_invoke_MemberName::vmindex(oop mname) { |
| 710 | 2460 assert(is_instance(mname), "wrong type"); |
| 2461 return mname->int_field(_vmindex_offset); | |
| 2462 } | |
| 2463 | |
|
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|
2464 void java_lang_invoke_MemberName::set_vmindex(oop mname, int index) { |
| 710 | 2465 assert(is_instance(mname), "wrong type"); |
| 2466 mname->int_field_put(_vmindex_offset, index); | |
| 2467 } | |
| 2468 | |
|
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
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|
2469 oop java_lang_invoke_MethodHandle::vmtarget(oop mh) { |
| 710 | 2470 assert(is_instance(mh), "MH only"); |
| 2471 return mh->obj_field(_vmtarget_offset); | |
| 2472 } | |
| 2473 | |
|
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diff
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|
2474 void java_lang_invoke_MethodHandle::set_vmtarget(oop mh, oop ref) { |
| 710 | 2475 assert(is_instance(mh), "MH only"); |
| 2476 mh->obj_field_put(_vmtarget_offset, ref); | |
| 2477 } | |
| 2478 | |
|
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diff
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|
2479 int java_lang_invoke_DirectMethodHandle::vmindex(oop mh) { |
| 710 | 2480 assert(is_instance(mh), "DMH only"); |
| 2481 return mh->int_field(_vmindex_offset); | |
| 2482 } | |
| 2483 | |
|
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diff
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|
2484 void java_lang_invoke_DirectMethodHandle::set_vmindex(oop mh, int index) { |
| 710 | 2485 assert(is_instance(mh), "DMH only"); |
| 2486 mh->int_field_put(_vmindex_offset, index); | |
| 2487 } | |
| 2488 | |
|
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diff
changeset
|
2489 int java_lang_invoke_BoundMethodHandle::vmargslot(oop mh) { |
| 710 | 2490 assert(is_instance(mh), "BMH only"); |
| 2491 return mh->int_field(_vmargslot_offset); | |
| 2492 } | |
| 2493 | |
|
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diff
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|
2494 oop java_lang_invoke_BoundMethodHandle::argument(oop mh) { |
| 710 | 2495 assert(is_instance(mh), "BMH only"); |
| 2496 return mh->obj_field(_argument_offset); | |
| 2497 } | |
| 2498 | |
|
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diff
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|
2499 int java_lang_invoke_AdapterMethodHandle::conversion(oop mh) { |
| 710 | 2500 assert(is_instance(mh), "AMH only"); |
| 2501 return mh->int_field(_conversion_offset); | |
| 2502 } | |
| 2503 | |
|
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diff
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|
2504 void java_lang_invoke_AdapterMethodHandle::set_conversion(oop mh, int conv) { |
| 710 | 2505 assert(is_instance(mh), "AMH only"); |
| 2506 mh->int_field_put(_conversion_offset, conv); | |
| 2507 } | |
| 2508 | |
| 2509 | |
|
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diff
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|
2510 // Support for java_lang_invoke_MethodType |
|
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
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|
2511 |
|
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
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|
2512 int java_lang_invoke_MethodType::_rtype_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
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|
2513 int java_lang_invoke_MethodType::_ptypes_offset; |
|
8033953d67ff
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diff
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|
2514 int java_lang_invoke_MethodType::_form_offset; |
|
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|
2515 |
|
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|
2516 void java_lang_invoke_MethodType::compute_offsets() { |
| 710 | 2517 klassOop k = SystemDictionary::MethodType_klass(); |
| 2518 if (k != NULL) { | |
| 2519 compute_offset(_rtype_offset, k, vmSymbols::rtype_name(), vmSymbols::class_signature()); | |
| 2520 compute_offset(_ptypes_offset, k, vmSymbols::ptypes_name(), vmSymbols::class_array_signature()); | |
|
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|
2521 compute_offset(_form_offset, k, vmSymbols::form_name(), vmSymbols::java_lang_invoke_MethodTypeForm_signature()); |
| 710 | 2522 } |
| 2523 } | |
| 2524 | |
|
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|
2525 void java_lang_invoke_MethodType::print_signature(oop mt, outputStream* st) { |
| 710 | 2526 st->print("("); |
| 2527 objArrayOop pts = ptypes(mt); | |
| 2528 for (int i = 0, limit = pts->length(); i < limit; i++) { | |
| 2529 java_lang_Class::print_signature(pts->obj_at(i), st); | |
| 2530 } | |
| 2531 st->print(")"); | |
| 2532 java_lang_Class::print_signature(rtype(mt), st); | |
| 2533 } | |
| 2534 | |
|
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|
2535 Symbol* java_lang_invoke_MethodType::as_signature(oop mt, bool intern_if_not_found, TRAPS) { |
| 710 | 2536 ResourceMark rm; |
| 2537 stringStream buffer(128); | |
| 2538 print_signature(mt, &buffer); | |
| 2539 const char* sigstr = buffer.base(); | |
| 2540 int siglen = (int) buffer.size(); | |
|
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diff
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|
2541 Symbol *name; |
|
3582bf76420e
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|
2542 if (!intern_if_not_found) { |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
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|
2543 name = SymbolTable::probe(sigstr, siglen); |
|
3582bf76420e
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diff
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|
2544 } else { |
|
3582bf76420e
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diff
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|
2545 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
|
3582bf76420e
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diff
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|
2546 } |
|
3582bf76420e
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|
2547 return name; |
| 710 | 2548 } |
| 2549 | |
|
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ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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|
2550 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
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|
2551 if (rtype(mt1) != rtype(mt2)) |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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|
2552 return false; |
|
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|
2553 if (ptype_count(mt1) != ptype_count(mt2)) |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
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diff
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|
2554 return false; |
|
ddd894528dbc
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|
2555 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
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|
2556 if (ptype(mt1, i) != ptype(mt2, i)) |
|
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7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
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|
2557 return false; |
|
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diff
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|
2558 } |
|
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7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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|
2559 return true; |
|
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diff
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|
2560 } |
|
ddd894528dbc
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changeset
|
2561 |
|
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|
2562 oop java_lang_invoke_MethodType::rtype(oop mt) { |
| 710 | 2563 assert(is_instance(mt), "must be a MethodType"); |
| 2564 return mt->obj_field(_rtype_offset); | |
| 2565 } | |
| 2566 | |
|
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|
2567 objArrayOop java_lang_invoke_MethodType::ptypes(oop mt) { |
| 710 | 2568 assert(is_instance(mt), "must be a MethodType"); |
| 2569 return (objArrayOop) mt->obj_field(_ptypes_offset); | |
| 2570 } | |
| 2571 | |
|
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|
2572 oop java_lang_invoke_MethodType::form(oop mt) { |
| 710 | 2573 assert(is_instance(mt), "must be a MethodType"); |
| 2574 return mt->obj_field(_form_offset); | |
| 2575 } | |
| 2576 | |
|
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|
2577 oop java_lang_invoke_MethodType::ptype(oop mt, int idx) { |
| 710 | 2578 return ptypes(mt)->obj_at(idx); |
| 2579 } | |
| 2580 | |
|
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|
2581 int java_lang_invoke_MethodType::ptype_count(oop mt) { |
|
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|
2582 return ptypes(mt)->length(); |
|
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|
2583 } |
|
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|
2584 |
| 710 | 2585 |
| 2586 | |
|
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|
2587 // Support for java_lang_invoke_MethodTypeForm |
|
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|
2588 |
|
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|
2589 int java_lang_invoke_MethodTypeForm::_vmslots_offset; |
|
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|
2590 int java_lang_invoke_MethodTypeForm::_vmlayout_offset; |
|
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2591 int java_lang_invoke_MethodTypeForm::_erasedType_offset; |
|
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2592 int java_lang_invoke_MethodTypeForm::_genericInvoker_offset; |
|
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|
2593 |
|
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|
2594 void java_lang_invoke_MethodTypeForm::compute_offsets() { |
| 710 | 2595 klassOop k = SystemDictionary::MethodTypeForm_klass(); |
| 2596 if (k != NULL) { | |
| 2597 compute_optional_offset(_vmslots_offset, k, vmSymbols::vmslots_name(), vmSymbols::int_signature(), true); | |
|
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|
2598 compute_optional_offset(_vmlayout_offset, k, vmSymbols::vmlayout_name(), vmSymbols::object_signature()); |
|
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|
2599 compute_optional_offset(_erasedType_offset, k, vmSymbols::erasedType_name(), vmSymbols::java_lang_invoke_MethodType_signature(), true); |
|
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|
2600 compute_optional_offset(_genericInvoker_offset, k, vmSymbols::genericInvoker_name(), vmSymbols::java_lang_invoke_MethodHandle_signature(), true); |
|
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|
2601 if (_genericInvoker_offset == 0) _genericInvoker_offset = -1; // set to explicit "empty" value |
| 710 | 2602 } |
| 2603 } | |
| 2604 | |
|
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|
2605 int java_lang_invoke_MethodTypeForm::vmslots(oop mtform) { |
| 710 | 2606 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
|
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|
2607 assert(_vmslots_offset > 0, ""); |
| 710 | 2608 return mtform->int_field(_vmslots_offset); |
| 2609 } | |
| 2610 | |
|
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|
2611 oop java_lang_invoke_MethodTypeForm::vmlayout(oop mtform) { |
|
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|
2612 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
|
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|
2613 assert(_vmlayout_offset > 0, ""); |
|
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|
2614 return mtform->obj_field(_vmlayout_offset); |
|
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|
2615 } |
|
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|
2616 |
|
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|
2617 oop java_lang_invoke_MethodTypeForm::init_vmlayout(oop mtform, oop cookie) { |
|
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|
2618 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
|
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|
2619 oop previous = vmlayout(mtform); |
|
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|
2620 if (previous != NULL) { |
|
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|
2621 return previous; // someone else beat us to it |
|
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|
2622 } |
|
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|
2623 HeapWord* cookie_addr = (HeapWord*) mtform->obj_field_addr<oop>(_vmlayout_offset); |
|
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|
2624 OrderAccess::storestore(); // make sure our copy is fully committed |
|
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|
2625 previous = oopDesc::atomic_compare_exchange_oop(cookie, cookie_addr, previous); |
|
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|
2626 if (previous != NULL) { |
|
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|
2627 return previous; // someone else beat us to it |
|
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|
2628 } |
|
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|
2629 return cookie; |
|
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|
2630 } |
|
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|
2631 |
|
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|
2632 oop java_lang_invoke_MethodTypeForm::erasedType(oop mtform) { |
| 710 | 2633 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
| 2634 return mtform->obj_field(_erasedType_offset); | |
| 2635 } | |
| 2636 | |
|
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|
2637 oop java_lang_invoke_MethodTypeForm::genericInvoker(oop mtform) { |
|
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|
2638 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
|
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|
2639 return mtform->obj_field(_genericInvoker_offset); |
|
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|
2640 } |
|
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|
2641 |
| 710 | 2642 |
|
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|
2643 // Support for java_lang_invoke_CallSite |
|
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|
2644 |
|
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|
2645 int java_lang_invoke_CallSite::_target_offset; |
|
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|
2646 |
|
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|
2647 void java_lang_invoke_CallSite::compute_offsets() { |
|
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be93aad57795
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diff
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|
2648 if (!EnableInvokeDynamic) return; |
|
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389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
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949
diff
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|
2649 klassOop k = SystemDictionary::CallSite_klass(); |
|
726
be93aad57795
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diff
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|
2650 if (k != NULL) { |
|
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|
2651 compute_offset(_target_offset, k, vmSymbols::target_name(), vmSymbols::java_lang_invoke_MethodHandle_signature()); |
|
726
be93aad57795
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diff
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|
2652 } |
|
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diff
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|
2653 } |
|
be93aad57795
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diff
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|
2654 |
|
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diff
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|
2655 oop java_lang_invoke_CallSite::target(oop site) { |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2656 return site->obj_field(_target_offset); |
|
be93aad57795
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jrose
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diff
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|
2657 } |
|
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diff
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|
2658 |
|
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|
2659 void java_lang_invoke_CallSite::set_target(oop site, oop target) { |
|
726
be93aad57795
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jrose
parents:
710
diff
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|
2660 site->obj_field_put(_target_offset, target); |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
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|
2661 } |
|
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jrose
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diff
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|
2662 |
| 710 | 2663 |
| 0 | 2664 // Support for java_security_AccessControlContext |
| 2665 | |
| 2666 int java_security_AccessControlContext::_context_offset = 0; | |
| 2667 int java_security_AccessControlContext::_privilegedContext_offset = 0; | |
| 2668 int java_security_AccessControlContext::_isPrivileged_offset = 0; | |
| 2669 | |
| 2670 void java_security_AccessControlContext::compute_offsets() { | |
| 2671 assert(_isPrivileged_offset == 0, "offsets should be initialized only once"); | |
| 2672 fieldDescriptor fd; | |
| 2673 instanceKlass* ik = instanceKlass::cast(SystemDictionary::AccessControlContext_klass()); | |
| 2674 | |
| 2675 if (!ik->find_local_field(vmSymbols::context_name(), vmSymbols::protectiondomain_signature(), &fd)) { | |
| 2676 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2677 } | |
| 2678 _context_offset = fd.offset(); | |
| 2679 | |
| 2680 if (!ik->find_local_field(vmSymbols::privilegedContext_name(), vmSymbols::accesscontrolcontext_signature(), &fd)) { | |
| 2681 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2682 } | |
| 2683 _privilegedContext_offset = fd.offset(); | |
| 2684 | |
| 2685 if (!ik->find_local_field(vmSymbols::isPrivileged_name(), vmSymbols::bool_signature(), &fd)) { | |
| 2686 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2687 } | |
| 2688 _isPrivileged_offset = fd.offset(); | |
| 2689 } | |
| 2690 | |
| 2691 | |
| 2692 oop java_security_AccessControlContext::create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS) { | |
| 2693 assert(_isPrivileged_offset != 0, "offsets should have been initialized"); | |
| 2694 // Ensure klass is initialized | |
| 2695 instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->initialize(CHECK_0); | |
| 2696 // Allocate result | |
| 2697 oop result = instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->allocate_instance(CHECK_0); | |
| 2698 // Fill in values | |
| 2699 result->obj_field_put(_context_offset, context()); | |
| 2700 result->obj_field_put(_privilegedContext_offset, privileged_context()); | |
| 2701 result->bool_field_put(_isPrivileged_offset, isPrivileged); | |
| 2702 return result; | |
| 2703 } | |
| 2704 | |
| 2705 | |
| 2706 // Support for java_lang_ClassLoader | |
| 2707 | |
| 2708 oop java_lang_ClassLoader::parent(oop loader) { | |
| 2709 assert(loader->is_oop(), "loader must be oop"); | |
| 2710 return loader->obj_field(parent_offset); | |
| 2711 } | |
| 2712 | |
| 2713 | |
| 2714 bool java_lang_ClassLoader::is_trusted_loader(oop loader) { | |
| 2715 // Fix for 4474172; see evaluation for more details | |
| 2716 loader = non_reflection_class_loader(loader); | |
| 2717 | |
| 2718 oop cl = SystemDictionary::java_system_loader(); | |
| 2719 while(cl != NULL) { | |
| 2720 if (cl == loader) return true; | |
| 2721 cl = parent(cl); | |
| 2722 } | |
| 2723 return false; | |
| 2724 } | |
| 2725 | |
| 2726 oop java_lang_ClassLoader::non_reflection_class_loader(oop loader) { | |
| 2727 if (loader != NULL) { | |
| 2728 // See whether this is one of the class loaders associated with | |
| 2729 // the generated bytecodes for reflection, and if so, "magically" | |
| 2730 // delegate to its parent to prevent class loading from occurring | |
| 2731 // in places where applications using reflection didn't expect it. | |
| 1142 | 2732 klassOop delegating_cl_class = SystemDictionary::reflect_DelegatingClassLoader_klass(); |
| 0 | 2733 // This might be null in non-1.4 JDKs |
| 2734 if (delegating_cl_class != NULL && loader->is_a(delegating_cl_class)) { | |
| 2735 return parent(loader); | |
| 2736 } | |
| 2737 } | |
| 2738 return loader; | |
| 2739 } | |
| 2740 | |
| 2741 | |
| 2742 // Support for java_lang_System | |
| 2743 int java_lang_System::in_offset_in_bytes() { | |
|
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2357
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|
2744 return (instanceMirrorKlass::offset_of_static_fields() + static_in_offset); |
| 0 | 2745 } |
| 2746 | |
| 2747 | |
| 2748 int java_lang_System::out_offset_in_bytes() { | |
|
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2357
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|
2749 return (instanceMirrorKlass::offset_of_static_fields() + static_out_offset); |
| 0 | 2750 } |
| 2751 | |
| 2752 | |
| 2753 int java_lang_System::err_offset_in_bytes() { | |
|
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2357
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|
2754 return (instanceMirrorKlass::offset_of_static_fields() + static_err_offset); |
| 0 | 2755 } |
| 2756 | |
| 2757 | |
| 2758 | |
| 2759 int java_lang_String::value_offset; | |
| 2760 int java_lang_String::offset_offset; | |
| 2761 int java_lang_String::count_offset; | |
| 2762 int java_lang_String::hash_offset; | |
| 2763 int java_lang_Class::klass_offset; | |
| 2764 int java_lang_Class::array_klass_offset; | |
| 2765 int java_lang_Class::resolved_constructor_offset; | |
| 2766 int java_lang_Class::number_of_fake_oop_fields; | |
|
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|
2767 int java_lang_Class::oop_size_offset; |
|
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2357
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|
2768 int java_lang_Class::static_oop_field_count_offset; |
| 0 | 2769 int java_lang_Throwable::backtrace_offset; |
| 2770 int java_lang_Throwable::detailMessage_offset; | |
| 2771 int java_lang_Throwable::cause_offset; | |
| 2772 int java_lang_Throwable::stackTrace_offset; | |
| 2773 int java_lang_reflect_AccessibleObject::override_offset; | |
| 2774 int java_lang_reflect_Method::clazz_offset; | |
| 2775 int java_lang_reflect_Method::name_offset; | |
| 2776 int java_lang_reflect_Method::returnType_offset; | |
| 2777 int java_lang_reflect_Method::parameterTypes_offset; | |
| 2778 int java_lang_reflect_Method::exceptionTypes_offset; | |
| 2779 int java_lang_reflect_Method::slot_offset; | |
| 2780 int java_lang_reflect_Method::modifiers_offset; | |
| 2781 int java_lang_reflect_Method::signature_offset; | |
| 2782 int java_lang_reflect_Method::annotations_offset; | |
| 2783 int java_lang_reflect_Method::parameter_annotations_offset; | |
| 2784 int java_lang_reflect_Method::annotation_default_offset; | |
| 2785 int java_lang_reflect_Constructor::clazz_offset; | |
| 2786 int java_lang_reflect_Constructor::parameterTypes_offset; | |
| 2787 int java_lang_reflect_Constructor::exceptionTypes_offset; | |
| 2788 int java_lang_reflect_Constructor::slot_offset; | |
| 2789 int java_lang_reflect_Constructor::modifiers_offset; | |
| 2790 int java_lang_reflect_Constructor::signature_offset; | |
| 2791 int java_lang_reflect_Constructor::annotations_offset; | |
| 2792 int java_lang_reflect_Constructor::parameter_annotations_offset; | |
| 2793 int java_lang_reflect_Field::clazz_offset; | |
| 2794 int java_lang_reflect_Field::name_offset; | |
| 2795 int java_lang_reflect_Field::type_offset; | |
| 2796 int java_lang_reflect_Field::slot_offset; | |
| 2797 int java_lang_reflect_Field::modifiers_offset; | |
| 2798 int java_lang_reflect_Field::signature_offset; | |
| 2799 int java_lang_reflect_Field::annotations_offset; | |
| 2800 int java_lang_boxing_object::value_offset; | |
|
165
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|
2801 int java_lang_boxing_object::long_value_offset; |
| 0 | 2802 int java_lang_ref_Reference::referent_offset; |
| 2803 int java_lang_ref_Reference::queue_offset; | |
| 2804 int java_lang_ref_Reference::next_offset; | |
| 2805 int java_lang_ref_Reference::discovered_offset; | |
| 2806 int java_lang_ref_Reference::static_lock_offset; | |
| 2807 int java_lang_ref_Reference::static_pending_offset; | |
| 2808 int java_lang_ref_Reference::number_of_fake_oop_fields; | |
| 2809 int java_lang_ref_SoftReference::timestamp_offset; | |
| 2810 int java_lang_ref_SoftReference::static_clock_offset; | |
| 2811 int java_lang_ClassLoader::parent_offset; | |
| 2812 int java_lang_System::static_in_offset; | |
| 2813 int java_lang_System::static_out_offset; | |
| 2814 int java_lang_System::static_err_offset; | |
| 2815 int java_lang_StackTraceElement::declaringClass_offset; | |
| 2816 int java_lang_StackTraceElement::methodName_offset; | |
| 2817 int java_lang_StackTraceElement::fileName_offset; | |
| 2818 int java_lang_StackTraceElement::lineNumber_offset; | |
| 2819 int java_lang_AssertionStatusDirectives::classes_offset; | |
| 2820 int java_lang_AssertionStatusDirectives::classEnabled_offset; | |
| 2821 int java_lang_AssertionStatusDirectives::packages_offset; | |
| 2822 int java_lang_AssertionStatusDirectives::packageEnabled_offset; | |
| 2823 int java_lang_AssertionStatusDirectives::deflt_offset; | |
| 2824 int java_nio_Buffer::_limit_offset; | |
| 2825 int sun_misc_AtomicLongCSImpl::_value_offset; | |
| 2826 int java_util_concurrent_locks_AbstractOwnableSynchronizer::_owner_offset = 0; | |
| 2827 int sun_reflect_ConstantPool::_cp_oop_offset; | |
| 2828 int sun_reflect_UnsafeStaticFieldAccessorImpl::_base_offset; | |
| 2829 | |
| 2830 | |
| 2831 // Support for java_lang_StackTraceElement | |
| 2832 | |
| 2833 void java_lang_StackTraceElement::set_fileName(oop element, oop value) { | |
| 2834 element->obj_field_put(fileName_offset, value); | |
| 2835 } | |
| 2836 | |
| 2837 void java_lang_StackTraceElement::set_declaringClass(oop element, oop value) { | |
| 2838 element->obj_field_put(declaringClass_offset, value); | |
| 2839 } | |
| 2840 | |
| 2841 void java_lang_StackTraceElement::set_methodName(oop element, oop value) { | |
| 2842 element->obj_field_put(methodName_offset, value); | |
| 2843 } | |
| 2844 | |
| 2845 void java_lang_StackTraceElement::set_lineNumber(oop element, int value) { | |
| 2846 element->int_field_put(lineNumber_offset, value); | |
| 2847 } | |
| 2848 | |
| 2849 | |
| 2850 // Support for java Assertions - java_lang_AssertionStatusDirectives. | |
| 2851 | |
| 2852 void java_lang_AssertionStatusDirectives::set_classes(oop o, oop val) { | |
| 2853 o->obj_field_put(classes_offset, val); | |
| 2854 } | |
| 2855 | |
| 2856 void java_lang_AssertionStatusDirectives::set_classEnabled(oop o, oop val) { | |
| 2857 o->obj_field_put(classEnabled_offset, val); | |
| 2858 } | |
| 2859 | |
| 2860 void java_lang_AssertionStatusDirectives::set_packages(oop o, oop val) { | |
| 2861 o->obj_field_put(packages_offset, val); | |
| 2862 } | |
| 2863 | |
| 2864 void java_lang_AssertionStatusDirectives::set_packageEnabled(oop o, oop val) { | |
| 2865 o->obj_field_put(packageEnabled_offset, val); | |
| 2866 } | |
| 2867 | |
| 2868 void java_lang_AssertionStatusDirectives::set_deflt(oop o, bool val) { | |
| 2869 o->bool_field_put(deflt_offset, val); | |
| 2870 } | |
| 2871 | |
| 2872 | |
| 2873 // Support for intrinsification of java.nio.Buffer.checkIndex | |
| 2874 int java_nio_Buffer::limit_offset() { | |
| 2875 return _limit_offset; | |
| 2876 } | |
| 2877 | |
| 2878 | |
| 2879 void java_nio_Buffer::compute_offsets() { | |
| 2880 klassOop k = SystemDictionary::java_nio_Buffer_klass(); | |
|
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2881 assert(k != NULL, "must be loaded in 1.4+"); |
|
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2882 compute_offset(_limit_offset, k, vmSymbols::limit_name(), vmSymbols::int_signature()); |
| 0 | 2883 } |
| 2884 | |
| 2885 // Support for intrinsification of sun.misc.AtomicLongCSImpl.attemptUpdate | |
| 2886 int sun_misc_AtomicLongCSImpl::value_offset() { | |
| 2887 assert(SystemDictionary::sun_misc_AtomicLongCSImpl_klass() != NULL, "can't call this"); | |
| 2888 return _value_offset; | |
| 2889 } | |
| 2890 | |
| 2891 | |
| 2892 void sun_misc_AtomicLongCSImpl::compute_offsets() { | |
| 2893 klassOop k = SystemDictionary::sun_misc_AtomicLongCSImpl_klass(); | |
| 2894 // If this class is not present, its value field offset won't be referenced. | |
| 2895 if (k != NULL) { | |
|
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|
2896 compute_offset(_value_offset, k, vmSymbols::value_name(), vmSymbols::long_signature()); |
| 0 | 2897 } |
| 2898 } | |
| 2899 | |
| 2900 void java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(TRAPS) { | |
| 2901 if (_owner_offset != 0) return; | |
| 2902 | |
| 2903 assert(JDK_Version::is_gte_jdk16x_version(), "Must be JDK 1.6 or later"); | |
| 2904 SystemDictionary::load_abstract_ownable_synchronizer_klass(CHECK); | |
| 2905 klassOop k = SystemDictionary::abstract_ownable_synchronizer_klass(); | |
|
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2906 compute_offset(_owner_offset, k, |
| 0 | 2907 vmSymbols::exclusive_owner_thread_name(), vmSymbols::thread_signature()); |
| 2908 } | |
| 2909 | |
| 2910 oop java_util_concurrent_locks_AbstractOwnableSynchronizer::get_owner_threadObj(oop obj) { | |
| 2911 assert(_owner_offset != 0, "Must be initialized"); | |
| 2912 return obj->obj_field(_owner_offset); | |
| 2913 } | |
| 2914 | |
| 2915 // Compute hard-coded offsets | |
| 2916 // Invoked before SystemDictionary::initialize, so pre-loaded classes | |
| 2917 // are not available to determine the offset_of_static_fields. | |
| 2918 void JavaClasses::compute_hard_coded_offsets() { | |
|
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|
2919 const int x = heapOopSize; |
|
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2920 const int header = instanceOopDesc::base_offset_in_bytes(); |
| 0 | 2921 |
| 2922 // Do the String Class | |
| 2923 java_lang_String::value_offset = java_lang_String::hc_value_offset * x + header; | |
| 2924 java_lang_String::offset_offset = java_lang_String::hc_offset_offset * x + header; | |
| 2925 java_lang_String::count_offset = java_lang_String::offset_offset + sizeof (jint); | |
| 2926 java_lang_String::hash_offset = java_lang_String::count_offset + sizeof (jint); | |
| 2927 | |
|
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2928 { |
|
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|
2929 // Do the Class Class |
|
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2930 int offset = header; |
|
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|
2931 java_lang_Class::oop_size_offset = header; |
|
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2932 offset += BytesPerInt; |
|
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|
2933 java_lang_Class::static_oop_field_count_offset = offset; |
|
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|
2934 offset = align_size_up(offset + BytesPerInt, x); |
|
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|
2935 java_lang_Class::klass_offset = offset; |
|
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|
2936 offset += x; |
|
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|
2937 java_lang_Class::array_klass_offset = offset; |
|
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|
2938 offset += x; |
|
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|
2939 java_lang_Class::resolved_constructor_offset = offset; |
|
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diff
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|
2940 } |
| 0 | 2941 |
| 2942 // This is NOT an offset | |
| 2943 java_lang_Class::number_of_fake_oop_fields = java_lang_Class::hc_number_of_fake_oop_fields; | |
| 2944 | |
| 2945 // Throwable Class | |
| 2946 java_lang_Throwable::backtrace_offset = java_lang_Throwable::hc_backtrace_offset * x + header; | |
| 2947 java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header; | |
| 2948 java_lang_Throwable::cause_offset = java_lang_Throwable::hc_cause_offset * x + header; | |
| 2949 java_lang_Throwable::stackTrace_offset = java_lang_Throwable::hc_stackTrace_offset * x + header; | |
| 2950 | |
| 2951 // java_lang_boxing_object | |
|
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2952 java_lang_boxing_object::value_offset = java_lang_boxing_object::hc_value_offset + header; |
|
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|
2953 java_lang_boxing_object::long_value_offset = align_size_up((java_lang_boxing_object::hc_value_offset + header), BytesPerLong); |
| 0 | 2954 |
| 2955 // java_lang_ref_Reference: | |
| 2956 java_lang_ref_Reference::referent_offset = java_lang_ref_Reference::hc_referent_offset * x + header; | |
| 2957 java_lang_ref_Reference::queue_offset = java_lang_ref_Reference::hc_queue_offset * x + header; | |
| 2958 java_lang_ref_Reference::next_offset = java_lang_ref_Reference::hc_next_offset * x + header; | |
| 2959 java_lang_ref_Reference::discovered_offset = java_lang_ref_Reference::hc_discovered_offset * x + header; | |
| 2960 java_lang_ref_Reference::static_lock_offset = java_lang_ref_Reference::hc_static_lock_offset * x; | |
| 2961 java_lang_ref_Reference::static_pending_offset = java_lang_ref_Reference::hc_static_pending_offset * x; | |
| 2962 // Artificial fields for java_lang_ref_Reference | |
| 2963 // The first field is for the discovered field added in 1.4 | |
| 2964 java_lang_ref_Reference::number_of_fake_oop_fields = 1; | |
| 2965 | |
| 2966 // java_lang_ref_SoftReference Class | |
|
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2967 java_lang_ref_SoftReference::timestamp_offset = align_size_up((java_lang_ref_SoftReference::hc_timestamp_offset * x + header), BytesPerLong); |
| 0 | 2968 // Don't multiply static fields because they are always in wordSize units |
| 2969 java_lang_ref_SoftReference::static_clock_offset = java_lang_ref_SoftReference::hc_static_clock_offset * x; | |
| 2970 | |
| 2971 // java_lang_ClassLoader | |
| 2972 java_lang_ClassLoader::parent_offset = java_lang_ClassLoader::hc_parent_offset * x + header; | |
| 2973 | |
| 2974 // java_lang_System | |
| 2975 java_lang_System::static_in_offset = java_lang_System::hc_static_in_offset * x; | |
| 2976 java_lang_System::static_out_offset = java_lang_System::hc_static_out_offset * x; | |
| 2977 java_lang_System::static_err_offset = java_lang_System::hc_static_err_offset * x; | |
| 2978 | |
| 2979 // java_lang_StackTraceElement | |
| 2980 java_lang_StackTraceElement::declaringClass_offset = java_lang_StackTraceElement::hc_declaringClass_offset * x + header; | |
| 2981 java_lang_StackTraceElement::methodName_offset = java_lang_StackTraceElement::hc_methodName_offset * x + header; | |
| 2982 java_lang_StackTraceElement::fileName_offset = java_lang_StackTraceElement::hc_fileName_offset * x + header; | |
| 2983 java_lang_StackTraceElement::lineNumber_offset = java_lang_StackTraceElement::hc_lineNumber_offset * x + header; | |
| 2984 java_lang_AssertionStatusDirectives::classes_offset = java_lang_AssertionStatusDirectives::hc_classes_offset * x + header; | |
| 2985 java_lang_AssertionStatusDirectives::classEnabled_offset = java_lang_AssertionStatusDirectives::hc_classEnabled_offset * x + header; | |
| 2986 java_lang_AssertionStatusDirectives::packages_offset = java_lang_AssertionStatusDirectives::hc_packages_offset * x + header; | |
| 2987 java_lang_AssertionStatusDirectives::packageEnabled_offset = java_lang_AssertionStatusDirectives::hc_packageEnabled_offset * x + header; | |
| 2988 java_lang_AssertionStatusDirectives::deflt_offset = java_lang_AssertionStatusDirectives::hc_deflt_offset * x + header; | |
| 2989 | |
| 2990 } | |
| 2991 | |
| 2992 | |
| 2993 // Compute non-hard-coded field offsets of all the classes in this file | |
| 2994 void JavaClasses::compute_offsets() { | |
| 2995 | |
| 2996 java_lang_Class::compute_offsets(); | |
| 2997 java_lang_Thread::compute_offsets(); | |
| 2998 java_lang_ThreadGroup::compute_offsets(); | |
|
2416
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2379
diff
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|
2999 if (EnableInvokeDynamic) { |
|
2357
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|
3000 java_lang_invoke_MethodHandle::compute_offsets(); |
|
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|
3001 java_lang_invoke_MemberName::compute_offsets(); |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
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|
3002 java_lang_invoke_DirectMethodHandle::compute_offsets(); |
|
8033953d67ff
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2356
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|
3003 java_lang_invoke_BoundMethodHandle::compute_offsets(); |
|
8033953d67ff
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2356
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|
3004 java_lang_invoke_AdapterMethodHandle::compute_offsets(); |
|
8033953d67ff
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2356
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|
3005 java_lang_invoke_MethodType::compute_offsets(); |
|
8033953d67ff
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|
3006 java_lang_invoke_MethodTypeForm::compute_offsets(); |
|
8033953d67ff
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|
3007 java_lang_invoke_CallSite::compute_offsets(); |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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diff
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|
3008 } |
| 0 | 3009 java_security_AccessControlContext::compute_offsets(); |
| 3010 // Initialize reflection classes. The layouts of these classes | |
| 3011 // changed with the new reflection implementation in JDK 1.4, and | |
| 3012 // since the Universe doesn't know what JDK version it is until this | |
| 3013 // point we defer computation of these offsets until now. | |
| 3014 java_lang_reflect_AccessibleObject::compute_offsets(); | |
| 3015 java_lang_reflect_Method::compute_offsets(); | |
| 3016 java_lang_reflect_Constructor::compute_offsets(); | |
| 3017 java_lang_reflect_Field::compute_offsets(); | |
| 3018 if (JDK_Version::is_gte_jdk14x_version()) { | |
| 3019 java_nio_Buffer::compute_offsets(); | |
| 3020 } | |
| 3021 if (JDK_Version::is_gte_jdk15x_version()) { | |
| 3022 sun_reflect_ConstantPool::compute_offsets(); | |
| 3023 sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets(); | |
| 3024 } | |
| 3025 sun_misc_AtomicLongCSImpl::compute_offsets(); | |
| 710 | 3026 |
| 3027 // generated interpreter code wants to know about the offsets we just computed: | |
| 3028 AbstractAssembler::update_delayed_values(); | |
| 0 | 3029 } |
| 3030 | |
| 3031 #ifndef PRODUCT | |
| 3032 | |
| 3033 // These functions exist to assert the validity of hard-coded field offsets to guard | |
| 3034 // against changes in the class files | |
| 3035 | |
| 3036 bool JavaClasses::check_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
| 3037 EXCEPTION_MARK; | |
| 3038 fieldDescriptor fd; | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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1989
diff
changeset
|
3039 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
| 0 | 3040 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
| 3041 instanceKlassHandle h_klass (THREAD, k); | |
|
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diff
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|
3042 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
changeset
|
3043 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
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|
3044 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
| 0 | 3045 tty->print_cr("Nonstatic field %s.%s not found", klass_name, field_name); |
| 3046 return false; | |
| 3047 } | |
| 3048 if (fd.is_static()) { | |
| 3049 tty->print_cr("Nonstatic field %s.%s appears to be static", klass_name, field_name); | |
| 3050 return false; | |
| 3051 } | |
| 3052 if (fd.offset() == hardcoded_offset ) { | |
| 3053 return true; | |
| 3054 } else { | |
| 3055 tty->print_cr("Offset of nonstatic field %s.%s is hardcoded as %d but should really be %d.", | |
| 3056 klass_name, field_name, hardcoded_offset, fd.offset()); | |
| 3057 return false; | |
| 3058 } | |
| 3059 } | |
| 3060 | |
| 3061 | |
| 3062 bool JavaClasses::check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
| 3063 EXCEPTION_MARK; | |
| 3064 fieldDescriptor fd; | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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diff
changeset
|
3065 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
| 0 | 3066 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
| 3067 instanceKlassHandle h_klass (THREAD, k); | |
|
2177
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6990754: Use native memory and reference counting to implement SymbolTable
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diff
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|
3068 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
changeset
|
3069 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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diff
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|
3070 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
| 0 | 3071 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
| 3072 return false; | |
| 3073 } | |
| 3074 if (!fd.is_static()) { | |
| 3075 tty->print_cr("Static field %s.%s appears to be nonstatic", klass_name, field_name); | |
| 3076 return false; | |
| 3077 } | |
|
2376
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2357
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|
3078 if (fd.offset() == hardcoded_offset + instanceMirrorKlass::offset_of_static_fields()) { |
| 0 | 3079 return true; |
| 3080 } else { | |
|
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
2357
diff
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|
3081 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 | 3082 return false; |
| 3083 } | |
| 3084 } | |
| 3085 | |
| 3086 | |
|
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|
3087 bool JavaClasses::check_constant(const char *klass_name, int hardcoded_constant, const char *field_name, const char* field_sig) { |
|
60b728ec77c1
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jrose
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|
3088 EXCEPTION_MARK; |
|
60b728ec77c1
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jrose
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|
3089 fieldDescriptor fd; |
|
2177
3582bf76420e
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|
3090 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
|
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|
3091 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
|
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jrose
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|
3092 instanceKlassHandle h_klass (THREAD, k); |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
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|
3093 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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diff
changeset
|
3094 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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|
3095 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
|
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|
3096 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
|
60b728ec77c1
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jrose
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|
3097 return false; |
|
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3098 } |
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3099 if (!fd.is_static() || !fd.has_initial_value()) { |
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3100 tty->print_cr("Static field %s.%s appears to be non-constant", klass_name, field_name); |
|
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3101 return false; |
|
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3102 } |
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3103 if (!fd.initial_value_tag().is_int()) { |
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3104 tty->print_cr("Static field %s.%s is not an int", klass_name, field_name); |
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3105 return false; |
|
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3106 } |
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3107 jint field_value = fd.int_initial_value(); |
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3108 if (field_value == hardcoded_constant) { |
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3109 return true; |
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3110 } else { |
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3111 tty->print_cr("Constant value of static field %s.%s is hardcoded as %d but should really be %d.", klass_name, field_name, hardcoded_constant, field_value); |
|
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3112 return false; |
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3113 } |
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3114 } |
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3115 |
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3116 |
| 0 | 3117 // Check the hard-coded field offsets of all the classes in this file |
| 3118 | |
| 3119 void JavaClasses::check_offsets() { | |
| 3120 bool valid = true; | |
| 3121 | |
| 3122 #define CHECK_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ | |
| 3123 valid &= check_offset(klass_name, cpp_klass_name :: field_name ## _offset, #field_name, field_sig) | |
| 3124 | |
|
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3125 #define CHECK_LONG_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
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3126 valid &= check_offset(klass_name, cpp_klass_name :: long_ ## field_name ## _offset, #field_name, field_sig) |
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3127 |
| 0 | 3128 #define CHECK_STATIC_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
| 3129 valid &= check_static_offset(klass_name, cpp_klass_name :: static_ ## field_name ## _offset, #field_name, field_sig) | |
| 3130 | |
|
132
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3131 #define CHECK_CONSTANT(klass_name, cpp_klass_name, field_name, field_sig) \ |
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3132 valid &= check_constant(klass_name, cpp_klass_name :: field_name, #field_name, field_sig) |
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3133 |
| 0 | 3134 // java.lang.String |
| 3135 | |
| 3136 CHECK_OFFSET("java/lang/String", java_lang_String, value, "[C"); | |
| 3137 CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I"); | |
| 3138 CHECK_OFFSET("java/lang/String", java_lang_String, count, "I"); | |
| 3139 CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I"); | |
| 3140 | |
| 3141 // java.lang.Class | |
| 3142 | |
| 3143 // Fake fields | |
| 3144 // CHECK_OFFSET("java/lang/Class", java_lang_Class, klass); // %%% this needs to be checked | |
| 3145 // CHECK_OFFSET("java/lang/Class", java_lang_Class, array_klass); // %%% this needs to be checked | |
| 3146 // CHECK_OFFSET("java/lang/Class", java_lang_Class, resolved_constructor); // %%% this needs to be checked | |
| 3147 | |
| 3148 // java.lang.Throwable | |
| 3149 | |
| 3150 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, backtrace, "Ljava/lang/Object;"); | |
| 3151 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, detailMessage, "Ljava/lang/String;"); | |
| 3152 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, cause, "Ljava/lang/Throwable;"); | |
| 3153 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, stackTrace, "[Ljava/lang/StackTraceElement;"); | |
| 3154 | |
| 3155 // Boxed primitive objects (java_lang_boxing_object) | |
| 3156 | |
| 3157 CHECK_OFFSET("java/lang/Boolean", java_lang_boxing_object, value, "Z"); | |
| 3158 CHECK_OFFSET("java/lang/Character", java_lang_boxing_object, value, "C"); | |
| 3159 CHECK_OFFSET("java/lang/Float", java_lang_boxing_object, value, "F"); | |
|
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3160 CHECK_LONG_OFFSET("java/lang/Double", java_lang_boxing_object, value, "D"); |
| 0 | 3161 CHECK_OFFSET("java/lang/Byte", java_lang_boxing_object, value, "B"); |
| 3162 CHECK_OFFSET("java/lang/Short", java_lang_boxing_object, value, "S"); | |
| 3163 CHECK_OFFSET("java/lang/Integer", java_lang_boxing_object, value, "I"); | |
|
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3164 CHECK_LONG_OFFSET("java/lang/Long", java_lang_boxing_object, value, "J"); |
| 0 | 3165 |
| 3166 // java.lang.ClassLoader | |
| 3167 | |
| 3168 CHECK_OFFSET("java/lang/ClassLoader", java_lang_ClassLoader, parent, "Ljava/lang/ClassLoader;"); | |
| 3169 | |
| 3170 // java.lang.System | |
| 3171 | |
| 3172 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, in, "Ljava/io/InputStream;"); | |
| 3173 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, out, "Ljava/io/PrintStream;"); | |
| 3174 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, err, "Ljava/io/PrintStream;"); | |
| 3175 | |
| 3176 // java.lang.StackTraceElement | |
| 3177 | |
| 3178 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClass, "Ljava/lang/String;"); | |
| 3179 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, methodName, "Ljava/lang/String;"); | |
| 3180 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, fileName, "Ljava/lang/String;"); | |
| 3181 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, lineNumber, "I"); | |
| 3182 | |
| 3183 // java.lang.ref.Reference | |
| 3184 | |
| 3185 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, referent, "Ljava/lang/Object;"); | |
| 3186 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, queue, "Ljava/lang/ref/ReferenceQueue;"); | |
| 3187 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, next, "Ljava/lang/ref/Reference;"); | |
| 3188 // Fake field | |
| 3189 //CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, discovered, "Ljava/lang/ref/Reference;"); | |
| 3190 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, lock, "Ljava/lang/ref/Reference$Lock;"); | |
| 3191 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, pending, "Ljava/lang/ref/Reference;"); | |
| 3192 | |
| 3193 // java.lang.ref.SoftReference | |
| 3194 | |
| 3195 CHECK_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, timestamp, "J"); | |
| 3196 CHECK_STATIC_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, clock, "J"); | |
| 3197 | |
| 3198 // java.lang.AssertionStatusDirectives | |
| 3199 // | |
| 3200 // The CheckAssertionStatusDirectives boolean can be removed from here and | |
| 3201 // globals.hpp after the AssertionStatusDirectives class has been integrated | |
| 3202 // into merlin "for some time." Without it, the vm will fail with early | |
| 3203 // merlin builds. | |
| 3204 | |
| 3205 if (CheckAssertionStatusDirectives && JDK_Version::is_gte_jdk14x_version()) { | |
| 3206 const char* nm = "java/lang/AssertionStatusDirectives"; | |
| 3207 const char* sig = "[Ljava/lang/String;"; | |
| 3208 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classes, sig); | |
| 3209 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classEnabled, "[Z"); | |
| 3210 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packages, sig); | |
| 3211 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packageEnabled, "[Z"); | |
| 3212 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, deflt, "Z"); | |
| 3213 } | |
| 3214 | |
| 3215 if (!valid) vm_exit_during_initialization("Hard-coded field offset verification failed"); | |
| 3216 } | |
| 3217 | |
| 3218 #endif // PRODUCT | |
| 3219 | |
| 3220 void javaClasses_init() { | |
| 3221 JavaClasses::compute_offsets(); | |
| 3222 JavaClasses::check_offsets(); | |
| 3223 FilteredFieldsMap::initialize(); // must be done after computing offsets. | |
| 3224 } |