Mercurial > hg > truffle
annotate src/share/vm/classfile/javaClasses.cpp @ 1552:c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair
| author | trims |
|---|---|
| date | Thu, 27 May 2010 19:08:38 -0700 |
| parents | cd5dbf694d45 |
| children | d257356e35f0 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2009, 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 | |
| 25 # include "incls/_precompiled.incl" | |
| 26 # include "incls/_javaClasses.cpp.incl" | |
| 27 | |
| 710 | 28 static bool find_field(instanceKlass* ik, |
| 29 symbolOop name_symbol, symbolOop signature_symbol, | |
| 30 fieldDescriptor* fd, | |
| 31 bool allow_super = false) { | |
| 32 if (allow_super) | |
| 33 return ik->find_field(name_symbol, signature_symbol, fd) != NULL; | |
| 34 else | |
| 35 return ik->find_local_field(name_symbol, signature_symbol, fd); | |
| 36 } | |
| 37 | |
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38 // Helpful routine for computing field offsets at run time rather than hardcoding them |
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39 static void |
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40 compute_offset(int &dest_offset, |
| 710 | 41 klassOop klass_oop, symbolOop name_symbol, symbolOop signature_symbol, |
| 42 bool allow_super = false) { | |
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43 fieldDescriptor fd; |
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44 instanceKlass* ik = instanceKlass::cast(klass_oop); |
| 710 | 45 if (!find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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46 ResourceMark rm; |
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47 tty->print_cr("Invalid layout of %s at %s", ik->external_name(), name_symbol->as_C_string()); |
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48 fatal("Invalid layout of preloaded class"); |
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49 } |
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50 dest_offset = fd.offset(); |
| 0 | 51 } |
| 52 | |
| 53 // Same as above but for "optional" offsets that might not be present in certain JDK versions | |
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54 static void |
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55 compute_optional_offset(int& dest_offset, |
| 710 | 56 klassOop klass_oop, symbolOop name_symbol, symbolOop signature_symbol, |
| 57 bool allow_super = false) { | |
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58 fieldDescriptor fd; |
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59 instanceKlass* ik = instanceKlass::cast(klass_oop); |
| 710 | 60 if (find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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61 dest_offset = fd.offset(); |
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62 } |
| 0 | 63 } |
| 64 | |
| 710 | 65 |
| 0 | 66 Handle java_lang_String::basic_create(int length, bool tenured, TRAPS) { |
| 67 // Create the String object first, so there's a chance that the String | |
| 68 // and the char array it points to end up in the same cache line. | |
| 69 oop obj; | |
| 70 if (tenured) { | |
| 1142 | 71 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_permanent_instance(CHECK_NH); |
| 0 | 72 } else { |
| 1142 | 73 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_instance(CHECK_NH); |
| 0 | 74 } |
| 75 | |
| 76 // Create the char array. The String object must be handlized here | |
| 77 // because GC can happen as a result of the allocation attempt. | |
| 78 Handle h_obj(THREAD, obj); | |
| 79 typeArrayOop buffer; | |
| 80 if (tenured) { | |
| 81 buffer = oopFactory::new_permanent_charArray(length, CHECK_NH); | |
| 82 } else { | |
| 83 buffer = oopFactory::new_charArray(length, CHECK_NH); | |
| 84 } | |
| 85 | |
| 86 // Point the String at the char array | |
| 87 obj = h_obj(); | |
| 88 set_value(obj, buffer); | |
| 89 // No need to zero the offset, allocation zero'ed the entire String object | |
| 90 assert(offset(obj) == 0, "initial String offset should be zero"); | |
| 91 //set_offset(obj, 0); | |
| 92 set_count(obj, length); | |
| 93 | |
| 94 return h_obj; | |
| 95 } | |
| 96 | |
| 97 Handle java_lang_String::basic_create_from_unicode(jchar* unicode, int length, bool tenured, TRAPS) { | |
| 98 Handle h_obj = basic_create(length, tenured, CHECK_NH); | |
| 99 typeArrayOop buffer = value(h_obj()); | |
| 100 for (int index = 0; index < length; index++) { | |
| 101 buffer->char_at_put(index, unicode[index]); | |
| 102 } | |
| 103 return h_obj; | |
| 104 } | |
| 105 | |
| 106 Handle java_lang_String::create_from_unicode(jchar* unicode, int length, TRAPS) { | |
| 107 return basic_create_from_unicode(unicode, length, false, CHECK_NH); | |
| 108 } | |
| 109 | |
| 110 Handle java_lang_String::create_tenured_from_unicode(jchar* unicode, int length, TRAPS) { | |
| 111 return basic_create_from_unicode(unicode, length, true, CHECK_NH); | |
| 112 } | |
| 113 | |
| 114 oop java_lang_String::create_oop_from_unicode(jchar* unicode, int length, TRAPS) { | |
| 115 Handle h_obj = basic_create_from_unicode(unicode, length, false, CHECK_0); | |
| 116 return h_obj(); | |
| 117 } | |
| 118 | |
| 119 Handle java_lang_String::create_from_str(const char* utf8_str, TRAPS) { | |
| 120 if (utf8_str == NULL) { | |
| 121 return Handle(); | |
| 122 } | |
| 123 int length = UTF8::unicode_length(utf8_str); | |
| 124 Handle h_obj = basic_create(length, false, CHECK_NH); | |
| 125 if (length > 0) { | |
| 126 UTF8::convert_to_unicode(utf8_str, value(h_obj())->char_at_addr(0), length); | |
| 127 } | |
| 128 return h_obj; | |
| 129 } | |
| 130 | |
| 131 oop java_lang_String::create_oop_from_str(const char* utf8_str, TRAPS) { | |
| 132 Handle h_obj = create_from_str(utf8_str, CHECK_0); | |
| 133 return h_obj(); | |
| 134 } | |
| 135 | |
| 136 Handle java_lang_String::create_from_symbol(symbolHandle symbol, TRAPS) { | |
| 137 int length = UTF8::unicode_length((char*)symbol->bytes(), symbol->utf8_length()); | |
| 138 Handle h_obj = basic_create(length, false, CHECK_NH); | |
| 139 if (length > 0) { | |
| 140 UTF8::convert_to_unicode((char*)symbol->bytes(), value(h_obj())->char_at_addr(0), length); | |
| 141 } | |
| 142 return h_obj; | |
| 143 } | |
| 144 | |
| 145 // Converts a C string to a Java String based on current encoding | |
| 146 Handle java_lang_String::create_from_platform_dependent_str(const char* str, TRAPS) { | |
| 147 assert(str != NULL, "bad arguments"); | |
| 148 | |
| 149 typedef jstring (*to_java_string_fn_t)(JNIEnv*, const char *); | |
| 150 static to_java_string_fn_t _to_java_string_fn = NULL; | |
| 151 | |
| 152 if (_to_java_string_fn == NULL) { | |
| 153 void *lib_handle = os::native_java_library(); | |
| 154 _to_java_string_fn = CAST_TO_FN_PTR(to_java_string_fn_t, hpi::dll_lookup(lib_handle, "NewStringPlatform")); | |
| 155 if (_to_java_string_fn == NULL) { | |
| 156 fatal("NewStringPlatform missing"); | |
| 157 } | |
| 158 } | |
| 159 | |
| 160 jstring js = NULL; | |
| 161 { JavaThread* thread = (JavaThread*)THREAD; | |
| 162 assert(thread->is_Java_thread(), "must be java thread"); | |
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163 HandleMark hm(thread); |
| 0 | 164 ThreadToNativeFromVM ttn(thread); |
| 165 js = (_to_java_string_fn)(thread->jni_environment(), str); | |
| 166 } | |
| 167 return Handle(THREAD, JNIHandles::resolve(js)); | |
| 168 } | |
| 169 | |
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170 // Converts a Java String to a native C string that can be used for |
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171 // native OS calls. |
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172 char* java_lang_String::as_platform_dependent_str(Handle java_string, TRAPS) { |
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173 |
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174 typedef char* (*to_platform_string_fn_t)(JNIEnv*, jstring, bool*); |
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175 static to_platform_string_fn_t _to_platform_string_fn = NULL; |
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176 |
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177 if (_to_platform_string_fn == NULL) { |
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178 void *lib_handle = os::native_java_library(); |
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179 _to_platform_string_fn = CAST_TO_FN_PTR(to_platform_string_fn_t, hpi::dll_lookup(lib_handle, "GetStringPlatformChars")); |
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180 if (_to_platform_string_fn == NULL) { |
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181 fatal("GetStringPlatformChars missing"); |
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182 } |
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183 } |
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184 |
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185 char *native_platform_string; |
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186 { JavaThread* thread = (JavaThread*)THREAD; |
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187 assert(thread->is_Java_thread(), "must be java thread"); |
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188 JNIEnv *env = thread->jni_environment(); |
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189 jstring js = (jstring) JNIHandles::make_local(env, java_string()); |
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190 bool is_copy; |
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191 HandleMark hm(thread); |
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192 ThreadToNativeFromVM ttn(thread); |
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193 native_platform_string = (_to_platform_string_fn)(env, js, &is_copy); |
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194 assert(is_copy == JNI_TRUE, "is_copy value changed"); |
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195 JNIHandles::destroy_local(js); |
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196 } |
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197 return native_platform_string; |
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198 } |
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199 |
| 0 | 200 Handle java_lang_String::char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS) { |
| 201 oop obj = java_string(); | |
| 202 // Typical usage is to convert all '/' to '.' in string. | |
| 203 typeArrayOop value = java_lang_String::value(obj); | |
| 204 int offset = java_lang_String::offset(obj); | |
| 205 int length = java_lang_String::length(obj); | |
| 206 | |
| 207 // First check if any from_char exist | |
| 208 int index; // Declared outside, used later | |
| 209 for (index = 0; index < length; index++) { | |
| 210 if (value->char_at(index + offset) == from_char) { | |
| 211 break; | |
| 212 } | |
| 213 } | |
| 214 if (index == length) { | |
| 215 // No from_char, so do not copy. | |
| 216 return java_string; | |
| 217 } | |
| 218 | |
| 219 // Create new UNICODE buffer. Must handlize value because GC | |
| 220 // may happen during String and char array creation. | |
| 221 typeArrayHandle h_value(THREAD, value); | |
| 222 Handle string = basic_create(length, false, CHECK_NH); | |
| 223 | |
| 224 typeArrayOop from_buffer = h_value(); | |
| 225 typeArrayOop to_buffer = java_lang_String::value(string()); | |
| 226 | |
| 227 // Copy contents | |
| 228 for (index = 0; index < length; index++) { | |
| 229 jchar c = from_buffer->char_at(index + offset); | |
| 230 if (c == from_char) { | |
| 231 c = to_char; | |
| 232 } | |
| 233 to_buffer->char_at_put(index, c); | |
| 234 } | |
| 235 return string; | |
| 236 } | |
| 237 | |
| 238 jchar* java_lang_String::as_unicode_string(oop java_string, int& length) { | |
| 239 typeArrayOop value = java_lang_String::value(java_string); | |
| 240 int offset = java_lang_String::offset(java_string); | |
| 241 length = java_lang_String::length(java_string); | |
| 242 | |
| 243 jchar* result = NEW_RESOURCE_ARRAY(jchar, length); | |
| 244 for (int index = 0; index < length; index++) { | |
| 245 result[index] = value->char_at(index + offset); | |
| 246 } | |
| 247 return result; | |
| 248 } | |
| 249 | |
| 250 symbolHandle java_lang_String::as_symbol(Handle java_string, TRAPS) { | |
| 251 oop obj = java_string(); | |
| 252 typeArrayOop value = java_lang_String::value(obj); | |
| 253 int offset = java_lang_String::offset(obj); | |
| 254 int length = java_lang_String::length(obj); | |
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255 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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256 symbolOop sym = SymbolTable::lookup_unicode(base, length, THREAD); |
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257 return symbolHandle(THREAD, sym); |
| 0 | 258 } |
| 259 | |
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260 symbolOop java_lang_String::as_symbol_or_null(oop java_string) { |
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261 typeArrayOop value = java_lang_String::value(java_string); |
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262 int offset = java_lang_String::offset(java_string); |
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263 int length = java_lang_String::length(java_string); |
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264 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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265 return SymbolTable::probe_unicode(base, length); |
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266 } |
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267 |
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268 |
| 0 | 269 int java_lang_String::utf8_length(oop java_string) { |
| 270 typeArrayOop value = java_lang_String::value(java_string); | |
| 271 int offset = java_lang_String::offset(java_string); | |
| 272 int length = java_lang_String::length(java_string); | |
| 273 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
| 274 return UNICODE::utf8_length(position, length); | |
| 275 } | |
| 276 | |
| 277 char* java_lang_String::as_utf8_string(oop java_string) { | |
| 278 typeArrayOop value = java_lang_String::value(java_string); | |
| 279 int offset = java_lang_String::offset(java_string); | |
| 280 int length = java_lang_String::length(java_string); | |
| 281 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
| 282 return UNICODE::as_utf8(position, length); | |
| 283 } | |
| 284 | |
| 285 char* java_lang_String::as_utf8_string(oop java_string, int start, int len) { | |
| 286 typeArrayOop value = java_lang_String::value(java_string); | |
| 287 int offset = java_lang_String::offset(java_string); | |
| 288 int length = java_lang_String::length(java_string); | |
| 289 assert(start + len <= length, "just checking"); | |
| 290 jchar* position = value->char_at_addr(offset + start); | |
| 291 return UNICODE::as_utf8(position, len); | |
| 292 } | |
| 293 | |
| 294 bool java_lang_String::equals(oop java_string, jchar* chars, int len) { | |
| 295 assert(SharedSkipVerify || | |
| 1142 | 296 java_string->klass() == SystemDictionary::String_klass(), |
| 0 | 297 "must be java_string"); |
| 298 typeArrayOop value = java_lang_String::value(java_string); | |
| 299 int offset = java_lang_String::offset(java_string); | |
| 300 int length = java_lang_String::length(java_string); | |
| 301 if (length != len) { | |
| 302 return false; | |
| 303 } | |
| 304 for (int i = 0; i < len; i++) { | |
| 305 if (value->char_at(i + offset) != chars[i]) { | |
| 306 return false; | |
| 307 } | |
| 308 } | |
| 309 return true; | |
| 310 } | |
| 311 | |
| 312 void java_lang_String::print(Handle java_string, outputStream* st) { | |
| 313 oop obj = java_string(); | |
| 1142 | 314 assert(obj->klass() == SystemDictionary::String_klass(), "must be java_string"); |
| 0 | 315 typeArrayOop value = java_lang_String::value(obj); |
| 316 int offset = java_lang_String::offset(obj); | |
| 317 int length = java_lang_String::length(obj); | |
| 318 | |
| 319 int end = MIN2(length, 100); | |
| 320 if (value == NULL) { | |
| 321 // This can happen if, e.g., printing a String | |
| 322 // object before its initializer has been called | |
| 323 st->print_cr("NULL"); | |
| 324 } else { | |
| 325 st->print("\""); | |
| 326 for (int index = 0; index < length; index++) { | |
| 327 st->print("%c", value->char_at(index + offset)); | |
| 328 } | |
| 329 st->print("\""); | |
| 330 } | |
| 331 } | |
| 332 | |
| 333 | |
| 334 oop java_lang_Class::create_mirror(KlassHandle k, TRAPS) { | |
| 335 assert(k->java_mirror() == NULL, "should only assign mirror once"); | |
| 336 // Use this moment of initialization to cache modifier_flags also, | |
| 337 // to support Class.getModifiers(). Instance classes recalculate | |
| 338 // the cached flags after the class file is parsed, but before the | |
| 339 // class is put into the system dictionary. | |
| 340 int computed_modifiers = k->compute_modifier_flags(CHECK_0); | |
| 341 k->set_modifier_flags(computed_modifiers); | |
| 1142 | 342 if (SystemDictionary::Class_klass_loaded()) { |
| 0 | 343 // Allocate mirror (java.lang.Class instance) |
| 1142 | 344 Handle mirror = instanceKlass::cast(SystemDictionary::Class_klass())->allocate_permanent_instance(CHECK_0); |
| 0 | 345 // Setup indirections |
| 346 mirror->obj_field_put(klass_offset, k()); | |
| 347 k->set_java_mirror(mirror()); | |
| 348 // It might also have a component mirror. This mirror must already exist. | |
| 349 if (k->oop_is_javaArray()) { | |
| 350 Handle comp_mirror; | |
| 351 if (k->oop_is_typeArray()) { | |
| 352 BasicType type = typeArrayKlass::cast(k->as_klassOop())->element_type(); | |
| 353 comp_mirror = Universe::java_mirror(type); | |
| 354 assert(comp_mirror.not_null(), "must have primitive mirror"); | |
| 355 } else if (k->oop_is_objArray()) { | |
| 356 klassOop element_klass = objArrayKlass::cast(k->as_klassOop())->element_klass(); | |
| 357 if (element_klass != NULL | |
| 358 && (Klass::cast(element_klass)->oop_is_instance() || | |
| 359 Klass::cast(element_klass)->oop_is_javaArray())) { | |
| 360 comp_mirror = Klass::cast(element_klass)->java_mirror(); | |
| 361 assert(comp_mirror.not_null(), "must have element mirror"); | |
| 362 } | |
| 363 // else some object array internal to the VM, like systemObjArrayKlassObj | |
| 364 } | |
| 365 if (comp_mirror.not_null()) { | |
| 366 // Two-way link between the array klass and its component mirror: | |
| 367 arrayKlass::cast(k->as_klassOop())->set_component_mirror(comp_mirror()); | |
| 368 set_array_klass(comp_mirror(), k->as_klassOop()); | |
| 369 } | |
| 370 } | |
| 371 return mirror(); | |
| 372 } else { | |
| 373 return NULL; | |
| 374 } | |
| 375 } | |
| 376 | |
| 377 | |
| 378 oop java_lang_Class::create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS) { | |
| 379 // This should be improved by adding a field at the Java level or by | |
| 380 // introducing a new VM klass (see comment in ClassFileParser) | |
| 1142 | 381 oop java_class = instanceKlass::cast(SystemDictionary::Class_klass())->allocate_permanent_instance(CHECK_0); |
| 0 | 382 if (type != T_VOID) { |
| 383 klassOop aklass = Universe::typeArrayKlassObj(type); | |
| 384 assert(aklass != NULL, "correct bootstrap"); | |
| 385 set_array_klass(java_class, aklass); | |
| 386 } | |
| 387 return java_class; | |
| 388 } | |
| 389 | |
| 390 | |
| 391 klassOop java_lang_Class::as_klassOop(oop java_class) { | |
| 392 //%note memory_2 | |
| 393 klassOop k = klassOop(java_class->obj_field(klass_offset)); | |
| 394 assert(k == NULL || k->is_klass(), "type check"); | |
| 395 return k; | |
| 396 } | |
| 397 | |
| 398 | |
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399 void java_lang_Class::print_signature(oop java_class, outputStream* st) { |
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400 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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401 symbolOop name = NULL; |
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402 bool is_instance = false; |
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403 if (is_primitive(java_class)) { |
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404 name = vmSymbols::type_signature(primitive_type(java_class)); |
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405 } else { |
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406 klassOop k = as_klassOop(java_class); |
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407 is_instance = Klass::cast(k)->oop_is_instance(); |
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408 name = Klass::cast(k)->name(); |
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409 } |
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410 if (name == NULL) { |
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411 st->print("<null>"); |
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412 return; |
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413 } |
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414 if (is_instance) st->print("L"); |
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415 st->write((char*) name->base(), (int) name->utf8_length()); |
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416 if (is_instance) st->print(";"); |
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417 } |
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418 |
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419 symbolOop java_lang_Class::as_signature(oop java_class, bool intern_if_not_found, TRAPS) { |
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420 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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421 symbolOop name = NULL; |
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422 if (is_primitive(java_class)) { |
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423 return vmSymbols::type_signature(primitive_type(java_class)); |
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424 } else { |
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425 klassOop k = as_klassOop(java_class); |
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426 if (!Klass::cast(k)->oop_is_instance()) { |
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427 return Klass::cast(k)->name(); |
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428 } else { |
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429 ResourceMark rm; |
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430 const char* sigstr = Klass::cast(k)->signature_name(); |
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431 int siglen = (int) strlen(sigstr); |
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432 if (!intern_if_not_found) |
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433 return SymbolTable::probe(sigstr, siglen); |
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434 else |
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435 return oopFactory::new_symbol(sigstr, siglen, THREAD); |
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436 } |
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437 } |
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438 } |
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439 |
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440 |
| 0 | 441 klassOop java_lang_Class::array_klass(oop java_class) { |
| 442 klassOop k = klassOop(java_class->obj_field(array_klass_offset)); | |
| 443 assert(k == NULL || k->is_klass() && Klass::cast(k)->oop_is_javaArray(), "should be array klass"); | |
| 444 return k; | |
| 445 } | |
| 446 | |
| 447 | |
| 448 void java_lang_Class::set_array_klass(oop java_class, klassOop klass) { | |
| 449 assert(klass->is_klass() && Klass::cast(klass)->oop_is_javaArray(), "should be array klass"); | |
| 450 java_class->obj_field_put(array_klass_offset, klass); | |
| 451 } | |
| 452 | |
| 453 | |
| 454 methodOop java_lang_Class::resolved_constructor(oop java_class) { | |
| 455 oop constructor = java_class->obj_field(resolved_constructor_offset); | |
| 456 assert(constructor == NULL || constructor->is_method(), "should be method"); | |
| 457 return methodOop(constructor); | |
| 458 } | |
| 459 | |
| 460 | |
| 461 void java_lang_Class::set_resolved_constructor(oop java_class, methodOop constructor) { | |
| 462 assert(constructor->is_method(), "should be method"); | |
| 463 java_class->obj_field_put(resolved_constructor_offset, constructor); | |
| 464 } | |
| 465 | |
| 466 | |
| 467 bool java_lang_Class::is_primitive(oop java_class) { | |
|
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468 // should assert: |
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469 //assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
| 0 | 470 klassOop k = klassOop(java_class->obj_field(klass_offset)); |
| 471 return k == NULL; | |
| 472 } | |
| 473 | |
| 474 | |
| 475 BasicType java_lang_Class::primitive_type(oop java_class) { | |
| 476 assert(java_lang_Class::is_primitive(java_class), "just checking"); | |
| 477 klassOop ak = klassOop(java_class->obj_field(array_klass_offset)); | |
| 478 BasicType type = T_VOID; | |
| 479 if (ak != NULL) { | |
| 480 // Note: create_basic_type_mirror above initializes ak to a non-null value. | |
| 481 type = arrayKlass::cast(ak)->element_type(); | |
| 482 } else { | |
| 483 assert(java_class == Universe::void_mirror(), "only valid non-array primitive"); | |
| 484 } | |
| 485 assert(Universe::java_mirror(type) == java_class, "must be consistent"); | |
| 486 return type; | |
| 487 } | |
| 488 | |
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489 BasicType java_lang_Class::as_BasicType(oop java_class, klassOop* reference_klass) { |
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490 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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491 if (is_primitive(java_class)) { |
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492 if (reference_klass != NULL) |
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493 (*reference_klass) = NULL; |
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494 return primitive_type(java_class); |
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495 } else { |
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496 if (reference_klass != NULL) |
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497 (*reference_klass) = as_klassOop(java_class); |
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498 return T_OBJECT; |
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499 } |
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500 } |
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501 |
| 0 | 502 |
| 503 oop java_lang_Class::primitive_mirror(BasicType t) { | |
| 504 oop mirror = Universe::java_mirror(t); | |
| 1142 | 505 assert(mirror != NULL && mirror->is_a(SystemDictionary::Class_klass()), "must be a Class"); |
| 0 | 506 assert(java_lang_Class::is_primitive(mirror), "must be primitive"); |
| 507 return mirror; | |
| 508 } | |
| 509 | |
| 510 bool java_lang_Class::offsets_computed = false; | |
| 511 int java_lang_Class::classRedefinedCount_offset = -1; | |
| 514 | 512 int java_lang_Class::parallelCapable_offset = -1; |
| 0 | 513 |
| 514 void java_lang_Class::compute_offsets() { | |
| 515 assert(!offsets_computed, "offsets should be initialized only once"); | |
| 516 offsets_computed = true; | |
| 517 | |
| 1142 | 518 klassOop k = SystemDictionary::Class_klass(); |
| 0 | 519 // The classRedefinedCount field is only present starting in 1.5, |
| 520 // so don't go fatal. | |
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521 compute_optional_offset(classRedefinedCount_offset, |
| 0 | 522 k, vmSymbols::classRedefinedCount_name(), vmSymbols::int_signature()); |
| 514 | 523 |
| 524 // The field indicating parallelCapable (parallelLockMap) is only present starting in 7, | |
| 1142 | 525 klassOop k1 = SystemDictionary::ClassLoader_klass(); |
| 514 | 526 compute_optional_offset(parallelCapable_offset, |
| 527 k1, vmSymbols::parallelCapable_name(), vmSymbols::concurrenthashmap_signature()); | |
| 528 } | |
| 529 | |
| 530 // For class loader classes, parallelCapable defined | |
| 531 // based on non-null field | |
| 532 // Written to by java.lang.ClassLoader, vm only reads this field, doesn't set it | |
| 533 bool java_lang_Class::parallelCapable(oop class_loader) { | |
| 534 if (!JDK_Version::is_gte_jdk17x_version() | |
| 535 || parallelCapable_offset == -1) { | |
| 536 // Default for backward compatibility is false | |
| 537 return false; | |
| 538 } | |
| 539 return (class_loader->obj_field(parallelCapable_offset) != NULL); | |
| 0 | 540 } |
| 541 | |
| 542 int java_lang_Class::classRedefinedCount(oop the_class_mirror) { | |
| 543 if (!JDK_Version::is_gte_jdk15x_version() | |
| 544 || classRedefinedCount_offset == -1) { | |
| 545 // The classRedefinedCount field is only present starting in 1.5. | |
| 546 // If we don't have an offset for it then just return -1 as a marker. | |
| 547 return -1; | |
| 548 } | |
| 549 | |
| 550 return the_class_mirror->int_field(classRedefinedCount_offset); | |
| 551 } | |
| 552 | |
| 553 void java_lang_Class::set_classRedefinedCount(oop the_class_mirror, int value) { | |
| 554 if (!JDK_Version::is_gte_jdk15x_version() | |
| 555 || classRedefinedCount_offset == -1) { | |
| 556 // The classRedefinedCount field is only present starting in 1.5. | |
| 557 // If we don't have an offset for it then nothing to set. | |
| 558 return; | |
| 559 } | |
| 560 | |
| 561 the_class_mirror->int_field_put(classRedefinedCount_offset, value); | |
| 562 } | |
| 563 | |
| 564 | |
| 565 // Note: JDK1.1 and before had a privateInfo_offset field which was used for the | |
| 566 // platform thread structure, and a eetop offset which was used for thread | |
| 567 // local storage (and unused by the HotSpot VM). In JDK1.2 the two structures | |
| 568 // merged, so in the HotSpot VM we just use the eetop field for the thread | |
| 569 // instead of the privateInfo_offset. | |
| 570 // | |
| 571 // Note: The stackSize field is only present starting in 1.4. | |
| 572 | |
| 573 int java_lang_Thread::_name_offset = 0; | |
| 574 int java_lang_Thread::_group_offset = 0; | |
| 575 int java_lang_Thread::_contextClassLoader_offset = 0; | |
| 576 int java_lang_Thread::_inheritedAccessControlContext_offset = 0; | |
| 577 int java_lang_Thread::_priority_offset = 0; | |
| 578 int java_lang_Thread::_eetop_offset = 0; | |
| 579 int java_lang_Thread::_daemon_offset = 0; | |
| 580 int java_lang_Thread::_stillborn_offset = 0; | |
| 581 int java_lang_Thread::_stackSize_offset = 0; | |
| 582 int java_lang_Thread::_tid_offset = 0; | |
| 583 int java_lang_Thread::_thread_status_offset = 0; | |
| 584 int java_lang_Thread::_park_blocker_offset = 0; | |
| 585 int java_lang_Thread::_park_event_offset = 0 ; | |
| 586 | |
| 587 | |
| 588 void java_lang_Thread::compute_offsets() { | |
| 589 assert(_group_offset == 0, "offsets should be initialized only once"); | |
| 590 | |
| 1142 | 591 klassOop k = SystemDictionary::Thread_klass(); |
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592 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::char_array_signature()); |
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593 compute_offset(_group_offset, k, vmSymbols::group_name(), vmSymbols::threadgroup_signature()); |
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594 compute_offset(_contextClassLoader_offset, k, vmSymbols::contextClassLoader_name(), vmSymbols::classloader_signature()); |
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595 compute_offset(_inheritedAccessControlContext_offset, k, vmSymbols::inheritedAccessControlContext_name(), vmSymbols::accesscontrolcontext_signature()); |
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596 compute_offset(_priority_offset, k, vmSymbols::priority_name(), vmSymbols::int_signature()); |
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597 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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598 compute_offset(_eetop_offset, k, vmSymbols::eetop_name(), vmSymbols::long_signature()); |
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599 compute_offset(_stillborn_offset, k, vmSymbols::stillborn_name(), vmSymbols::bool_signature()); |
| 0 | 600 // The stackSize field is only present starting in 1.4, so don't go fatal. |
|
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601 compute_optional_offset(_stackSize_offset, k, vmSymbols::stackSize_name(), vmSymbols::long_signature()); |
| 0 | 602 // The tid and thread_status fields are only present starting in 1.5, so don't go fatal. |
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603 compute_optional_offset(_tid_offset, k, vmSymbols::thread_id_name(), vmSymbols::long_signature()); |
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604 compute_optional_offset(_thread_status_offset, k, vmSymbols::thread_status_name(), vmSymbols::int_signature()); |
| 0 | 605 // The parkBlocker field is only present starting in 1.6, so don't go fatal. |
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606 compute_optional_offset(_park_blocker_offset, k, vmSymbols::park_blocker_name(), vmSymbols::object_signature()); |
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607 compute_optional_offset(_park_event_offset, k, vmSymbols::park_event_name(), |
| 0 | 608 vmSymbols::long_signature()); |
| 609 } | |
| 610 | |
| 611 | |
| 612 JavaThread* java_lang_Thread::thread(oop java_thread) { | |
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613 return (JavaThread*)java_thread->address_field(_eetop_offset); |
| 0 | 614 } |
| 615 | |
| 616 | |
| 617 void java_lang_Thread::set_thread(oop java_thread, JavaThread* thread) { | |
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618 java_thread->address_field_put(_eetop_offset, (address)thread); |
| 0 | 619 } |
| 620 | |
| 621 | |
| 622 typeArrayOop java_lang_Thread::name(oop java_thread) { | |
| 623 oop name = java_thread->obj_field(_name_offset); | |
| 624 assert(name == NULL || (name->is_typeArray() && typeArrayKlass::cast(name->klass())->element_type() == T_CHAR), "just checking"); | |
| 625 return typeArrayOop(name); | |
| 626 } | |
| 627 | |
| 628 | |
| 629 void java_lang_Thread::set_name(oop java_thread, typeArrayOop name) { | |
| 630 assert(java_thread->obj_field(_name_offset) == NULL, "name should be NULL"); | |
| 631 java_thread->obj_field_put(_name_offset, name); | |
| 632 } | |
| 633 | |
| 634 | |
| 635 ThreadPriority java_lang_Thread::priority(oop java_thread) { | |
| 636 return (ThreadPriority)java_thread->int_field(_priority_offset); | |
| 637 } | |
| 638 | |
| 639 | |
| 640 void java_lang_Thread::set_priority(oop java_thread, ThreadPriority priority) { | |
| 641 java_thread->int_field_put(_priority_offset, priority); | |
| 642 } | |
| 643 | |
| 644 | |
| 645 oop java_lang_Thread::threadGroup(oop java_thread) { | |
| 646 return java_thread->obj_field(_group_offset); | |
| 647 } | |
| 648 | |
| 649 | |
| 650 bool java_lang_Thread::is_stillborn(oop java_thread) { | |
| 651 return java_thread->bool_field(_stillborn_offset) != 0; | |
| 652 } | |
| 653 | |
| 654 | |
| 655 // We never have reason to turn the stillborn bit off | |
| 656 void java_lang_Thread::set_stillborn(oop java_thread) { | |
| 657 java_thread->bool_field_put(_stillborn_offset, true); | |
| 658 } | |
| 659 | |
| 660 | |
| 661 bool java_lang_Thread::is_alive(oop java_thread) { | |
| 662 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
| 663 return (thr != NULL); | |
| 664 } | |
| 665 | |
| 666 | |
| 667 bool java_lang_Thread::is_daemon(oop java_thread) { | |
| 668 return java_thread->bool_field(_daemon_offset) != 0; | |
| 669 } | |
| 670 | |
| 671 | |
| 672 void java_lang_Thread::set_daemon(oop java_thread) { | |
| 673 java_thread->bool_field_put(_daemon_offset, true); | |
| 674 } | |
| 675 | |
| 676 oop java_lang_Thread::context_class_loader(oop java_thread) { | |
| 677 return java_thread->obj_field(_contextClassLoader_offset); | |
| 678 } | |
| 679 | |
| 680 oop java_lang_Thread::inherited_access_control_context(oop java_thread) { | |
| 681 return java_thread->obj_field(_inheritedAccessControlContext_offset); | |
| 682 } | |
| 683 | |
| 684 | |
| 685 jlong java_lang_Thread::stackSize(oop java_thread) { | |
| 686 // The stackSize field is only present starting in 1.4 | |
| 687 if (_stackSize_offset > 0) { | |
| 688 assert(JDK_Version::is_gte_jdk14x_version(), "sanity check"); | |
| 689 return java_thread->long_field(_stackSize_offset); | |
| 690 } else { | |
| 691 return 0; | |
| 692 } | |
| 693 } | |
| 694 | |
| 695 // Write the thread status value to threadStatus field in java.lang.Thread java class. | |
| 696 void java_lang_Thread::set_thread_status(oop java_thread, | |
| 697 java_lang_Thread::ThreadStatus status) { | |
| 698 assert(JavaThread::current()->thread_state() == _thread_in_vm, "Java Thread is not running in vm"); | |
| 699 // The threadStatus is only present starting in 1.5 | |
| 700 if (_thread_status_offset > 0) { | |
| 701 java_thread->int_field_put(_thread_status_offset, status); | |
| 702 } | |
| 703 } | |
| 704 | |
| 705 // Read thread status value from threadStatus field in java.lang.Thread java class. | |
| 706 java_lang_Thread::ThreadStatus java_lang_Thread::get_thread_status(oop java_thread) { | |
| 707 assert(Thread::current()->is_VM_thread() || | |
| 708 JavaThread::current()->thread_state() == _thread_in_vm, | |
| 709 "Java Thread is not running in vm"); | |
| 710 // The threadStatus is only present starting in 1.5 | |
| 711 if (_thread_status_offset > 0) { | |
| 712 return (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
| 713 } else { | |
| 714 // All we can easily figure out is if it is alive, but that is | |
| 715 // enough info for a valid unknown status. | |
| 716 // These aren't restricted to valid set ThreadStatus values, so | |
| 717 // use JVMTI values and cast. | |
| 718 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
| 719 if (thr == NULL) { | |
| 720 // the thread hasn't run yet or is in the process of exiting | |
| 721 return NEW; | |
| 722 } | |
| 723 return (java_lang_Thread::ThreadStatus)JVMTI_THREAD_STATE_ALIVE; | |
| 724 } | |
| 725 } | |
| 726 | |
| 727 | |
| 728 jlong java_lang_Thread::thread_id(oop java_thread) { | |
| 729 // The thread ID field is only present starting in 1.5 | |
| 730 if (_tid_offset > 0) { | |
| 731 return java_thread->long_field(_tid_offset); | |
| 732 } else { | |
| 733 return 0; | |
| 734 } | |
| 735 } | |
| 736 | |
| 737 oop java_lang_Thread::park_blocker(oop java_thread) { | |
| 242 | 738 assert(JDK_Version::current().supports_thread_park_blocker() && |
| 739 _park_blocker_offset != 0, "Must support parkBlocker field"); | |
| 0 | 740 |
| 741 if (_park_blocker_offset > 0) { | |
| 742 return java_thread->obj_field(_park_blocker_offset); | |
| 743 } | |
| 744 | |
| 745 return NULL; | |
| 746 } | |
| 747 | |
| 748 jlong java_lang_Thread::park_event(oop java_thread) { | |
| 749 if (_park_event_offset > 0) { | |
| 750 return java_thread->long_field(_park_event_offset); | |
| 751 } | |
| 752 return 0; | |
| 753 } | |
| 754 | |
| 755 bool java_lang_Thread::set_park_event(oop java_thread, jlong ptr) { | |
| 756 if (_park_event_offset > 0) { | |
| 757 java_thread->long_field_put(_park_event_offset, ptr); | |
| 758 return true; | |
| 759 } | |
| 760 return false; | |
| 761 } | |
| 762 | |
| 763 | |
| 764 const char* java_lang_Thread::thread_status_name(oop java_thread) { | |
| 765 assert(JDK_Version::is_gte_jdk15x_version() && _thread_status_offset != 0, "Must have thread status"); | |
| 766 ThreadStatus status = (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
| 767 switch (status) { | |
| 768 case NEW : return "NEW"; | |
| 769 case RUNNABLE : return "RUNNABLE"; | |
| 770 case SLEEPING : return "TIMED_WAITING (sleeping)"; | |
| 771 case IN_OBJECT_WAIT : return "WAITING (on object monitor)"; | |
| 772 case IN_OBJECT_WAIT_TIMED : return "TIMED_WAITING (on object monitor)"; | |
| 773 case PARKED : return "WAITING (parking)"; | |
| 774 case PARKED_TIMED : return "TIMED_WAITING (parking)"; | |
| 775 case BLOCKED_ON_MONITOR_ENTER : return "BLOCKED (on object monitor)"; | |
| 776 case TERMINATED : return "TERMINATED"; | |
| 777 default : return "UNKNOWN"; | |
| 778 }; | |
| 779 } | |
| 780 int java_lang_ThreadGroup::_parent_offset = 0; | |
| 781 int java_lang_ThreadGroup::_name_offset = 0; | |
| 782 int java_lang_ThreadGroup::_threads_offset = 0; | |
| 783 int java_lang_ThreadGroup::_groups_offset = 0; | |
| 784 int java_lang_ThreadGroup::_maxPriority_offset = 0; | |
| 785 int java_lang_ThreadGroup::_destroyed_offset = 0; | |
| 786 int java_lang_ThreadGroup::_daemon_offset = 0; | |
| 787 int java_lang_ThreadGroup::_vmAllowSuspension_offset = 0; | |
| 788 int java_lang_ThreadGroup::_nthreads_offset = 0; | |
| 789 int java_lang_ThreadGroup::_ngroups_offset = 0; | |
| 790 | |
| 791 oop java_lang_ThreadGroup::parent(oop java_thread_group) { | |
| 792 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 793 return java_thread_group->obj_field(_parent_offset); | |
| 794 } | |
| 795 | |
| 796 // ("name as oop" accessor is not necessary) | |
| 797 | |
| 798 typeArrayOop java_lang_ThreadGroup::name(oop java_thread_group) { | |
| 799 oop name = java_thread_group->obj_field(_name_offset); | |
| 800 // ThreadGroup.name can be null | |
| 801 return name == NULL ? (typeArrayOop)NULL : java_lang_String::value(name); | |
| 802 } | |
| 803 | |
| 804 int java_lang_ThreadGroup::nthreads(oop java_thread_group) { | |
| 805 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 806 return java_thread_group->int_field(_nthreads_offset); | |
| 807 } | |
| 808 | |
| 809 objArrayOop java_lang_ThreadGroup::threads(oop java_thread_group) { | |
| 810 oop threads = java_thread_group->obj_field(_threads_offset); | |
| 811 assert(threads != NULL, "threadgroups should have threads"); | |
| 812 assert(threads->is_objArray(), "just checking"); // Todo: Add better type checking code | |
| 813 return objArrayOop(threads); | |
| 814 } | |
| 815 | |
| 816 int java_lang_ThreadGroup::ngroups(oop java_thread_group) { | |
| 817 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 818 return java_thread_group->int_field(_ngroups_offset); | |
| 819 } | |
| 820 | |
| 821 objArrayOop java_lang_ThreadGroup::groups(oop java_thread_group) { | |
| 822 oop groups = java_thread_group->obj_field(_groups_offset); | |
| 823 assert(groups == NULL || groups->is_objArray(), "just checking"); // Todo: Add better type checking code | |
| 824 return objArrayOop(groups); | |
| 825 } | |
| 826 | |
| 827 ThreadPriority java_lang_ThreadGroup::maxPriority(oop java_thread_group) { | |
| 828 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 829 return (ThreadPriority) java_thread_group->int_field(_maxPriority_offset); | |
| 830 } | |
| 831 | |
| 832 bool java_lang_ThreadGroup::is_destroyed(oop java_thread_group) { | |
| 833 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 834 return java_thread_group->bool_field(_destroyed_offset) != 0; | |
| 835 } | |
| 836 | |
| 837 bool java_lang_ThreadGroup::is_daemon(oop java_thread_group) { | |
| 838 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 839 return java_thread_group->bool_field(_daemon_offset) != 0; | |
| 840 } | |
| 841 | |
| 842 bool java_lang_ThreadGroup::is_vmAllowSuspension(oop java_thread_group) { | |
| 843 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 844 return java_thread_group->bool_field(_vmAllowSuspension_offset) != 0; | |
| 845 } | |
| 846 | |
| 847 void java_lang_ThreadGroup::compute_offsets() { | |
| 848 assert(_parent_offset == 0, "offsets should be initialized only once"); | |
| 849 | |
| 1142 | 850 klassOop k = SystemDictionary::ThreadGroup_klass(); |
| 0 | 851 |
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852 compute_offset(_parent_offset, k, vmSymbols::parent_name(), vmSymbols::threadgroup_signature()); |
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853 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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854 compute_offset(_threads_offset, k, vmSymbols::threads_name(), vmSymbols::thread_array_signature()); |
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855 compute_offset(_groups_offset, k, vmSymbols::groups_name(), vmSymbols::threadgroup_array_signature()); |
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856 compute_offset(_maxPriority_offset, k, vmSymbols::maxPriority_name(), vmSymbols::int_signature()); |
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857 compute_offset(_destroyed_offset, k, vmSymbols::destroyed_name(), vmSymbols::bool_signature()); |
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858 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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859 compute_offset(_vmAllowSuspension_offset, k, vmSymbols::vmAllowSuspension_name(), vmSymbols::bool_signature()); |
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860 compute_offset(_nthreads_offset, k, vmSymbols::nthreads_name(), vmSymbols::int_signature()); |
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861 compute_offset(_ngroups_offset, k, vmSymbols::ngroups_name(), vmSymbols::int_signature()); |
| 0 | 862 } |
| 863 | |
| 864 oop java_lang_Throwable::backtrace(oop throwable) { | |
| 865 return throwable->obj_field_acquire(backtrace_offset); | |
| 866 } | |
| 867 | |
| 868 | |
| 869 void java_lang_Throwable::set_backtrace(oop throwable, oop value) { | |
| 870 throwable->release_obj_field_put(backtrace_offset, value); | |
| 871 } | |
| 872 | |
| 873 | |
| 874 oop java_lang_Throwable::message(oop throwable) { | |
| 875 return throwable->obj_field(detailMessage_offset); | |
| 876 } | |
| 877 | |
| 878 | |
| 879 oop java_lang_Throwable::message(Handle throwable) { | |
| 880 return throwable->obj_field(detailMessage_offset); | |
| 881 } | |
| 882 | |
| 883 | |
| 884 void java_lang_Throwable::set_message(oop throwable, oop value) { | |
| 885 throwable->obj_field_put(detailMessage_offset, value); | |
| 886 } | |
| 887 | |
| 888 | |
| 889 void java_lang_Throwable::clear_stacktrace(oop throwable) { | |
| 890 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
| 891 throwable->obj_field_put(stackTrace_offset, NULL); | |
| 892 } | |
| 893 | |
| 894 | |
| 895 void java_lang_Throwable::print(oop throwable, outputStream* st) { | |
| 896 ResourceMark rm; | |
| 897 klassOop k = throwable->klass(); | |
| 898 assert(k != NULL, "just checking"); | |
| 899 st->print("%s", instanceKlass::cast(k)->external_name()); | |
| 900 oop msg = message(throwable); | |
| 901 if (msg != NULL) { | |
| 902 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
| 903 } | |
| 904 } | |
| 905 | |
| 906 | |
| 907 void java_lang_Throwable::print(Handle throwable, outputStream* st) { | |
| 908 ResourceMark rm; | |
| 909 klassOop k = throwable->klass(); | |
| 910 assert(k != NULL, "just checking"); | |
| 911 st->print("%s", instanceKlass::cast(k)->external_name()); | |
| 912 oop msg = message(throwable); | |
| 913 if (msg != NULL) { | |
| 914 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
| 915 } | |
| 916 } | |
| 917 | |
| 918 // Print stack trace element to resource allocated buffer | |
| 919 char* java_lang_Throwable::print_stack_element_to_buffer(methodOop method, int bci) { | |
| 920 // Get strings and string lengths | |
| 921 instanceKlass* klass = instanceKlass::cast(method->method_holder()); | |
| 922 const char* klass_name = klass->external_name(); | |
| 923 int buf_len = (int)strlen(klass_name); | |
| 924 char* source_file_name; | |
| 925 if (klass->source_file_name() == NULL) { | |
| 926 source_file_name = NULL; | |
| 927 } else { | |
| 928 source_file_name = klass->source_file_name()->as_C_string(); | |
| 929 buf_len += (int)strlen(source_file_name); | |
| 930 } | |
| 931 char* method_name = method->name()->as_C_string(); | |
| 932 buf_len += (int)strlen(method_name); | |
| 933 | |
| 934 // Allocate temporary buffer with extra space for formatting and line number | |
| 935 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64); | |
| 936 | |
| 937 // Print stack trace line in buffer | |
| 938 sprintf(buf, "\tat %s.%s", klass_name, method_name); | |
| 939 if (method->is_native()) { | |
| 940 strcat(buf, "(Native Method)"); | |
| 941 } else { | |
| 942 int line_number = method->line_number_from_bci(bci); | |
| 943 if (source_file_name != NULL && (line_number != -1)) { | |
| 944 // Sourcename and linenumber | |
| 945 sprintf(buf + (int)strlen(buf), "(%s:%d)", source_file_name, line_number); | |
| 946 } else if (source_file_name != NULL) { | |
| 947 // Just sourcename | |
| 948 sprintf(buf + (int)strlen(buf), "(%s)", source_file_name); | |
| 949 } else { | |
| 950 // Neither soucename and linenumber | |
| 951 sprintf(buf + (int)strlen(buf), "(Unknown Source)"); | |
| 952 } | |
| 953 nmethod* nm = method->code(); | |
| 954 if (WizardMode && nm != NULL) { | |
|
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955 sprintf(buf + (int)strlen(buf), "(nmethod " PTR_FORMAT ")", (intptr_t)nm); |
| 0 | 956 } |
| 957 } | |
| 958 | |
| 959 return buf; | |
| 960 } | |
| 961 | |
| 962 | |
| 963 void java_lang_Throwable::print_stack_element(Handle stream, methodOop method, int bci) { | |
| 964 ResourceMark rm; | |
| 965 char* buf = print_stack_element_to_buffer(method, bci); | |
| 966 print_to_stream(stream, buf); | |
| 967 } | |
| 968 | |
| 969 void java_lang_Throwable::print_stack_element(outputStream *st, methodOop method, int bci) { | |
| 970 ResourceMark rm; | |
| 971 char* buf = print_stack_element_to_buffer(method, bci); | |
| 972 st->print_cr("%s", buf); | |
| 973 } | |
| 974 | |
| 975 void java_lang_Throwable::print_to_stream(Handle stream, const char* str) { | |
| 976 if (stream.is_null()) { | |
| 977 tty->print_cr("%s", str); | |
| 978 } else { | |
| 979 EXCEPTION_MARK; | |
| 980 JavaValue result(T_VOID); | |
| 981 Handle arg (THREAD, oopFactory::new_charArray(str, THREAD)); | |
| 982 if (!HAS_PENDING_EXCEPTION) { | |
| 983 JavaCalls::call_virtual(&result, | |
| 984 stream, | |
| 985 KlassHandle(THREAD, stream->klass()), | |
| 986 vmSymbolHandles::println_name(), | |
| 987 vmSymbolHandles::char_array_void_signature(), | |
| 988 arg, | |
| 989 THREAD); | |
| 990 } | |
| 991 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
| 992 if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION; | |
| 993 } | |
| 994 | |
| 995 } | |
| 996 | |
| 997 | |
| 998 const char* java_lang_Throwable::no_stack_trace_message() { | |
| 999 return "\t<<no stack trace available>>"; | |
| 1000 } | |
| 1001 | |
| 1002 | |
| 1003 // Currently used only for exceptions occurring during startup | |
| 1004 void java_lang_Throwable::print_stack_trace(oop throwable, outputStream* st) { | |
| 1005 Thread *THREAD = Thread::current(); | |
| 1006 Handle h_throwable(THREAD, throwable); | |
| 1007 while (h_throwable.not_null()) { | |
| 1008 objArrayHandle result (THREAD, objArrayOop(backtrace(h_throwable()))); | |
| 1009 if (result.is_null()) { | |
| 1010 st->print_cr(no_stack_trace_message()); | |
| 1011 return; | |
| 1012 } | |
| 1013 | |
| 1014 while (result.not_null()) { | |
| 1015 objArrayHandle methods (THREAD, | |
| 1016 objArrayOop(result->obj_at(trace_methods_offset))); | |
| 1017 typeArrayHandle bcis (THREAD, | |
| 1018 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
| 1019 | |
| 1020 if (methods.is_null() || bcis.is_null()) { | |
| 1021 st->print_cr(no_stack_trace_message()); | |
| 1022 return; | |
| 1023 } | |
| 1024 | |
| 1025 int length = methods()->length(); | |
| 1026 for (int index = 0; index < length; index++) { | |
| 1027 methodOop method = methodOop(methods()->obj_at(index)); | |
| 1028 if (method == NULL) goto handle_cause; | |
| 1029 int bci = bcis->ushort_at(index); | |
| 1030 print_stack_element(st, method, bci); | |
| 1031 } | |
| 1032 result = objArrayHandle(THREAD, objArrayOop(result->obj_at(trace_next_offset))); | |
| 1033 } | |
| 1034 handle_cause: | |
| 1035 { | |
| 1036 EXCEPTION_MARK; | |
| 1037 JavaValue result(T_OBJECT); | |
| 1038 JavaCalls::call_virtual(&result, | |
| 1039 h_throwable, | |
| 1040 KlassHandle(THREAD, h_throwable->klass()), | |
| 1041 vmSymbolHandles::getCause_name(), | |
| 1042 vmSymbolHandles::void_throwable_signature(), | |
| 1043 THREAD); | |
| 1044 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
| 1045 if (HAS_PENDING_EXCEPTION) { | |
| 1046 CLEAR_PENDING_EXCEPTION; | |
| 1047 h_throwable = Handle(); | |
| 1048 } else { | |
| 1049 h_throwable = Handle(THREAD, (oop) result.get_jobject()); | |
| 1050 if (h_throwable.not_null()) { | |
| 1051 st->print("Caused by: "); | |
| 1052 print(h_throwable, st); | |
| 1053 st->cr(); | |
| 1054 } | |
| 1055 } | |
| 1056 } | |
| 1057 } | |
| 1058 } | |
| 1059 | |
| 1060 | |
| 1061 void java_lang_Throwable::print_stack_trace(oop throwable, oop print_stream) { | |
| 1062 // Note: this is no longer used in Merlin, but we support it for compatibility. | |
| 1063 Thread *thread = Thread::current(); | |
| 1064 Handle stream(thread, print_stream); | |
| 1065 objArrayHandle result (thread, objArrayOop(backtrace(throwable))); | |
| 1066 if (result.is_null()) { | |
| 1067 print_to_stream(stream, no_stack_trace_message()); | |
| 1068 return; | |
| 1069 } | |
| 1070 | |
| 1071 while (result.not_null()) { | |
| 1072 objArrayHandle methods (thread, | |
| 1073 objArrayOop(result->obj_at(trace_methods_offset))); | |
| 1074 typeArrayHandle bcis (thread, | |
| 1075 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
| 1076 | |
| 1077 if (methods.is_null() || bcis.is_null()) { | |
| 1078 print_to_stream(stream, no_stack_trace_message()); | |
| 1079 return; | |
| 1080 } | |
| 1081 | |
| 1082 int length = methods()->length(); | |
| 1083 for (int index = 0; index < length; index++) { | |
| 1084 methodOop method = methodOop(methods()->obj_at(index)); | |
| 1085 if (method == NULL) return; | |
| 1086 int bci = bcis->ushort_at(index); | |
| 1087 print_stack_element(stream, method, bci); | |
| 1088 } | |
| 1089 result = objArrayHandle(thread, objArrayOop(result->obj_at(trace_next_offset))); | |
| 1090 } | |
| 1091 } | |
| 1092 | |
| 1093 // This class provides a simple wrapper over the internal structure of | |
| 1094 // exception backtrace to insulate users of the backtrace from needing | |
| 1095 // to know what it looks like. | |
| 1096 class BacktraceBuilder: public StackObj { | |
| 1097 private: | |
| 1098 Handle _backtrace; | |
| 1099 objArrayOop _head; | |
| 1100 objArrayOop _methods; | |
| 1101 typeArrayOop _bcis; | |
| 1102 int _index; | |
| 1103 bool _dirty; | |
| 1104 No_Safepoint_Verifier _nsv; | |
| 1105 | |
| 1106 public: | |
| 1107 | |
| 1108 enum { | |
| 1109 trace_methods_offset = java_lang_Throwable::trace_methods_offset, | |
| 1110 trace_bcis_offset = java_lang_Throwable::trace_bcis_offset, | |
| 1111 trace_next_offset = java_lang_Throwable::trace_next_offset, | |
| 1112 trace_size = java_lang_Throwable::trace_size, | |
| 1113 trace_chunk_size = java_lang_Throwable::trace_chunk_size | |
| 1114 }; | |
| 1115 | |
| 1116 // constructor for new backtrace | |
|
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1117 BacktraceBuilder(TRAPS): _methods(NULL), _bcis(NULL), _head(NULL), _dirty(false) { |
| 0 | 1118 expand(CHECK); |
| 1119 _backtrace = _head; | |
| 1120 _index = 0; | |
| 1121 } | |
| 1122 | |
| 1123 void flush() { | |
|
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1124 // The following appears to have been an optimization to save from |
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1125 // doing a barrier for each individual store into the _methods array, |
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1126 // but rather to do it for the entire array after the series of writes. |
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1127 // That optimization seems to have been lost when compressed oops was |
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1128 // implemented. However, the extra card-marks below was left in place, |
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1129 // but is now redundant because the individual stores into the |
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1130 // _methods array already execute the barrier code. CR 6918185 has |
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1131 // been filed so the original code may be restored by deferring the |
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1132 // barriers until after the entire sequence of stores, thus re-enabling |
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1133 // the intent of the original optimization. In the meantime the redundant |
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1134 // card mark below is now disabled. |
| 0 | 1135 if (_dirty && _methods != NULL) { |
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1136 #if 0 |
| 0 | 1137 BarrierSet* bs = Universe::heap()->barrier_set(); |
| 1138 assert(bs->has_write_ref_array_opt(), "Barrier set must have ref array opt"); | |
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1139 bs->write_ref_array((HeapWord*)_methods->base(), _methods->length()); |
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1140 #endif |
| 0 | 1141 _dirty = false; |
| 1142 } | |
| 1143 } | |
| 1144 | |
| 1145 void expand(TRAPS) { | |
| 1146 flush(); | |
| 1147 | |
| 1148 objArrayHandle old_head(THREAD, _head); | |
| 1149 Pause_No_Safepoint_Verifier pnsv(&_nsv); | |
| 1150 | |
| 1151 objArrayOop head = oopFactory::new_objectArray(trace_size, CHECK); | |
| 1152 objArrayHandle new_head(THREAD, head); | |
| 1153 | |
| 1154 objArrayOop methods = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
| 1155 objArrayHandle new_methods(THREAD, methods); | |
| 1156 | |
| 1157 typeArrayOop bcis = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
| 1158 typeArrayHandle new_bcis(THREAD, bcis); | |
| 1159 | |
| 1160 if (!old_head.is_null()) { | |
| 1161 old_head->obj_at_put(trace_next_offset, new_head()); | |
| 1162 } | |
| 1163 new_head->obj_at_put(trace_methods_offset, new_methods()); | |
| 1164 new_head->obj_at_put(trace_bcis_offset, new_bcis()); | |
| 1165 | |
| 1166 _head = new_head(); | |
| 1167 _methods = new_methods(); | |
| 1168 _bcis = new_bcis(); | |
| 1169 _index = 0; | |
| 1170 } | |
| 1171 | |
| 1172 oop backtrace() { | |
| 1173 flush(); | |
| 1174 return _backtrace(); | |
| 1175 } | |
| 1176 | |
| 1177 inline void push(methodOop method, short bci, TRAPS) { | |
| 1178 if (_index >= trace_chunk_size) { | |
| 1179 methodHandle mhandle(THREAD, method); | |
| 1180 expand(CHECK); | |
| 1181 method = mhandle(); | |
| 1182 } | |
| 1183 | |
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1184 _methods->obj_at_put(_index, method); |
| 0 | 1185 _bcis->ushort_at_put(_index, bci); |
| 1186 _index++; | |
| 1187 _dirty = true; | |
| 1188 } | |
| 1189 | |
| 1190 methodOop current_method() { | |
| 1191 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
| 1192 return methodOop(_methods->obj_at(_index)); | |
| 1193 } | |
| 1194 | |
| 1195 jushort current_bci() { | |
| 1196 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
| 1197 return _bcis->ushort_at(_index); | |
| 1198 } | |
| 1199 }; | |
| 1200 | |
| 1201 | |
| 1202 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, TRAPS) { | |
| 1203 if (!StackTraceInThrowable) return; | |
| 1204 ResourceMark rm(THREAD); | |
| 1205 | |
| 1206 // Start out by clearing the backtrace for this object, in case the VM | |
| 1207 // runs out of memory while allocating the stack trace | |
| 1208 set_backtrace(throwable(), NULL); | |
| 1209 if (JDK_Version::is_gte_jdk14x_version()) { | |
| 1210 // New since 1.4, clear lazily constructed Java level stacktrace if | |
| 1211 // refilling occurs | |
| 1212 clear_stacktrace(throwable()); | |
| 1213 } | |
| 1214 | |
| 1215 int max_depth = MaxJavaStackTraceDepth; | |
| 1216 JavaThread* thread = (JavaThread*)THREAD; | |
| 1217 BacktraceBuilder bt(CHECK); | |
| 1218 | |
| 1219 // Instead of using vframe directly, this version of fill_in_stack_trace | |
| 1220 // basically handles everything by hand. This significantly improved the | |
| 1221 // speed of this method call up to 28.5% on Solaris sparc. 27.1% on Windows. | |
| 1222 // See bug 6333838 for more details. | |
| 1223 // The "ASSERT" here is to verify this method generates the exactly same stack | |
| 1224 // trace as utilizing vframe. | |
| 1225 #ifdef ASSERT | |
| 1226 vframeStream st(thread); | |
| 1227 methodHandle st_method(THREAD, st.method()); | |
| 1228 #endif | |
| 1229 int total_count = 0; | |
| 1230 RegisterMap map(thread, false); | |
| 1231 int decode_offset = 0; | |
| 1232 nmethod* nm = NULL; | |
| 1233 bool skip_fillInStackTrace_check = false; | |
| 1234 bool skip_throwableInit_check = false; | |
| 1235 | |
| 1236 for (frame fr = thread->last_frame(); max_depth != total_count;) { | |
| 1237 methodOop method = NULL; | |
| 1238 int bci = 0; | |
| 1239 | |
| 1240 // Compiled java method case. | |
| 1241 if (decode_offset != 0) { | |
| 1242 DebugInfoReadStream stream(nm, decode_offset); | |
| 1243 decode_offset = stream.read_int(); | |
| 1244 method = (methodOop)nm->oop_at(stream.read_int()); | |
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1245 bci = stream.read_bci(); |
| 0 | 1246 } else { |
| 1247 if (fr.is_first_frame()) break; | |
| 1248 address pc = fr.pc(); | |
| 1249 if (fr.is_interpreted_frame()) { | |
| 1250 intptr_t bcx = fr.interpreter_frame_bcx(); | |
| 1251 method = fr.interpreter_frame_method(); | |
| 1252 bci = fr.is_bci(bcx) ? bcx : method->bci_from((address)bcx); | |
| 1253 fr = fr.sender(&map); | |
| 1254 } else { | |
| 1255 CodeBlob* cb = fr.cb(); | |
| 1256 // HMMM QQQ might be nice to have frame return nm as NULL if cb is non-NULL | |
| 1257 // but non nmethod | |
| 1258 fr = fr.sender(&map); | |
| 1259 if (cb == NULL || !cb->is_nmethod()) { | |
| 1260 continue; | |
| 1261 } | |
| 1262 nm = (nmethod*)cb; | |
| 1263 if (nm->method()->is_native()) { | |
| 1264 method = nm->method(); | |
| 1265 bci = 0; | |
| 1266 } else { | |
| 1267 PcDesc* pd = nm->pc_desc_at(pc); | |
| 1268 decode_offset = pd->scope_decode_offset(); | |
| 1269 // if decode_offset is not equal to 0, it will execute the | |
| 1270 // "compiled java method case" at the beginning of the loop. | |
| 1271 continue; | |
| 1272 } | |
| 1273 } | |
| 1274 } | |
| 1275 #ifdef ASSERT | |
| 1276 assert(st_method() == method && st.bci() == bci, | |
| 1277 "Wrong stack trace"); | |
| 1278 st.next(); | |
| 1279 // vframeStream::method isn't GC-safe so store off a copy | |
| 1280 // of the methodOop in case we GC. | |
| 1281 if (!st.at_end()) { | |
| 1282 st_method = st.method(); | |
| 1283 } | |
| 1284 #endif | |
| 1285 if (!skip_fillInStackTrace_check) { | |
| 1286 // check "fillInStackTrace" only once, so we negate the flag | |
| 1287 // after the first time check. | |
| 1288 skip_fillInStackTrace_check = true; | |
| 1289 if (method->name() == vmSymbols::fillInStackTrace_name()) { | |
| 1290 continue; | |
| 1291 } | |
| 1292 } | |
| 1293 // skip <init> methods of the exceptions klass. If there is <init> methods | |
| 1294 // that belongs to a superclass of the exception we are going to skipping | |
| 1295 // them in stack trace. This is simlar to classic VM. | |
| 1296 if (!skip_throwableInit_check) { | |
| 1297 if (method->name() == vmSymbols::object_initializer_name() && | |
| 1298 throwable->is_a(method->method_holder())) { | |
| 1299 continue; | |
| 1300 } else { | |
| 1301 // if no "Throwable.init()" method found, we stop checking it next time. | |
| 1302 skip_throwableInit_check = true; | |
| 1303 } | |
| 1304 } | |
| 1305 bt.push(method, bci, CHECK); | |
| 1306 total_count++; | |
| 1307 } | |
| 1308 | |
| 1309 // Put completed stack trace into throwable object | |
| 1310 set_backtrace(throwable(), bt.backtrace()); | |
| 1311 } | |
| 1312 | |
| 1313 void java_lang_Throwable::fill_in_stack_trace(Handle throwable) { | |
| 1314 // No-op if stack trace is disabled | |
| 1315 if (!StackTraceInThrowable) { | |
| 1316 return; | |
| 1317 } | |
| 1318 | |
| 1319 // Disable stack traces for some preallocated out of memory errors | |
| 1320 if (!Universe::should_fill_in_stack_trace(throwable)) { | |
| 1321 return; | |
| 1322 } | |
| 1323 | |
| 1324 PRESERVE_EXCEPTION_MARK; | |
| 1325 | |
| 1326 JavaThread* thread = JavaThread::active(); | |
| 1327 fill_in_stack_trace(throwable, thread); | |
| 1328 // ignore exceptions thrown during stack trace filling | |
| 1329 CLEAR_PENDING_EXCEPTION; | |
| 1330 } | |
| 1331 | |
| 1332 void java_lang_Throwable::allocate_backtrace(Handle throwable, TRAPS) { | |
| 1333 // Allocate stack trace - backtrace is created but not filled in | |
| 1334 | |
| 1335 // No-op if stack trace is disabled | |
| 1336 if (!StackTraceInThrowable) return; | |
| 1337 | |
| 1338 objArrayOop h_oop = oopFactory::new_objectArray(trace_size, CHECK); | |
| 1339 objArrayHandle backtrace (THREAD, h_oop); | |
| 1340 objArrayOop m_oop = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
| 1341 objArrayHandle methods (THREAD, m_oop); | |
| 1342 typeArrayOop b = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
| 1343 typeArrayHandle bcis(THREAD, b); | |
| 1344 | |
| 1345 // backtrace has space for one chunk (next is NULL) | |
| 1346 backtrace->obj_at_put(trace_methods_offset, methods()); | |
| 1347 backtrace->obj_at_put(trace_bcis_offset, bcis()); | |
| 1348 set_backtrace(throwable(), backtrace()); | |
| 1349 } | |
| 1350 | |
| 1351 | |
| 1352 void java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(Handle throwable) { | |
| 1353 // Fill in stack trace into preallocated backtrace (no GC) | |
| 1354 | |
| 1355 // No-op if stack trace is disabled | |
| 1356 if (!StackTraceInThrowable) return; | |
| 1357 | |
| 1142 | 1358 assert(throwable->is_a(SystemDictionary::Throwable_klass()), "sanity check"); |
| 0 | 1359 |
| 1360 oop backtrace = java_lang_Throwable::backtrace(throwable()); | |
| 1361 assert(backtrace != NULL, "backtrace not preallocated"); | |
| 1362 | |
| 1363 oop m = objArrayOop(backtrace)->obj_at(trace_methods_offset); | |
| 1364 objArrayOop methods = objArrayOop(m); | |
| 1365 assert(methods != NULL && methods->length() > 0, "method array not preallocated"); | |
| 1366 | |
| 1367 oop b = objArrayOop(backtrace)->obj_at(trace_bcis_offset); | |
| 1368 typeArrayOop bcis = typeArrayOop(b); | |
| 1369 assert(bcis != NULL, "bci array not preallocated"); | |
| 1370 | |
| 1371 assert(methods->length() == bcis->length(), "method and bci arrays should match"); | |
| 1372 | |
| 1373 JavaThread* thread = JavaThread::current(); | |
| 1374 ResourceMark rm(thread); | |
| 1375 vframeStream st(thread); | |
| 1376 | |
| 1377 // Unlike fill_in_stack_trace we do not skip fillInStackTrace or throwable init | |
| 1378 // methods as preallocated errors aren't created by "java" code. | |
| 1379 | |
| 1380 // fill in as much stack trace as possible | |
| 1381 int max_chunks = MIN2(methods->length(), (int)MaxJavaStackTraceDepth); | |
| 1382 int chunk_count = 0; | |
| 1383 | |
| 1384 for (;!st.at_end(); st.next()) { | |
| 1385 // add element | |
| 1386 bcis->ushort_at_put(chunk_count, st.bci()); | |
| 1387 methods->obj_at_put(chunk_count, st.method()); | |
| 1388 | |
| 1389 chunk_count++; | |
| 1390 | |
| 1391 // Bail-out for deep stacks | |
| 1392 if (chunk_count >= max_chunks) break; | |
| 1393 } | |
| 1394 } | |
| 1395 | |
| 1396 | |
| 1397 int java_lang_Throwable::get_stack_trace_depth(oop throwable, TRAPS) { | |
| 1398 if (throwable == NULL) { | |
| 1399 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
| 1400 } | |
| 1401 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
| 1402 int depth = 0; | |
| 1403 if (chunk != NULL) { | |
| 1404 // Iterate over chunks and count full ones | |
| 1405 while (true) { | |
| 1406 objArrayOop next = objArrayOop(chunk->obj_at(trace_next_offset)); | |
| 1407 if (next == NULL) break; | |
| 1408 depth += trace_chunk_size; | |
| 1409 chunk = next; | |
| 1410 } | |
| 1411 assert(chunk != NULL && chunk->obj_at(trace_next_offset) == NULL, "sanity check"); | |
| 1412 // Count element in remaining partial chunk | |
| 1413 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
| 1414 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
| 1415 assert(methods != NULL && bcis != NULL, "sanity check"); | |
| 1416 for (int i = 0; i < methods->length(); i++) { | |
| 1417 if (methods->obj_at(i) == NULL) break; | |
| 1418 depth++; | |
| 1419 } | |
| 1420 } | |
| 1421 return depth; | |
| 1422 } | |
| 1423 | |
| 1424 | |
| 1425 oop java_lang_Throwable::get_stack_trace_element(oop throwable, int index, TRAPS) { | |
| 1426 if (throwable == NULL) { | |
| 1427 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
| 1428 } | |
| 1429 if (index < 0) { | |
| 1430 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1431 } | |
| 1432 // Compute how many chunks to skip and index into actual chunk | |
| 1433 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
| 1434 int skip_chunks = index / trace_chunk_size; | |
| 1435 int chunk_index = index % trace_chunk_size; | |
| 1436 while (chunk != NULL && skip_chunks > 0) { | |
| 1437 chunk = objArrayOop(chunk->obj_at(trace_next_offset)); | |
| 1438 skip_chunks--; | |
| 1439 } | |
| 1440 if (chunk == NULL) { | |
| 1441 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1442 } | |
| 1443 // Get method,bci from chunk | |
| 1444 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
| 1445 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
| 1446 assert(methods != NULL && bcis != NULL, "sanity check"); | |
| 1447 methodHandle method(THREAD, methodOop(methods->obj_at(chunk_index))); | |
| 1448 int bci = bcis->ushort_at(chunk_index); | |
| 1449 // Chunk can be partial full | |
| 1450 if (method.is_null()) { | |
| 1451 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1452 } | |
| 1453 | |
| 1454 oop element = java_lang_StackTraceElement::create(method, bci, CHECK_0); | |
| 1455 return element; | |
| 1456 } | |
| 1457 | |
| 1458 oop java_lang_StackTraceElement::create(methodHandle method, int bci, TRAPS) { | |
| 1459 // SystemDictionary::stackTraceElement_klass() will be null for pre-1.4 JDKs | |
| 1460 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
| 1461 | |
| 1462 // Allocate java.lang.StackTraceElement instance | |
| 1142 | 1463 klassOop k = SystemDictionary::StackTraceElement_klass(); |
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1464 assert(k != NULL, "must be loaded in 1.4+"); |
| 0 | 1465 instanceKlassHandle ik (THREAD, k); |
| 1466 if (ik->should_be_initialized()) { | |
| 1467 ik->initialize(CHECK_0); | |
| 1468 } | |
| 1469 | |
| 1470 Handle element = ik->allocate_instance_handle(CHECK_0); | |
| 1471 // Fill in class name | |
| 1472 ResourceMark rm(THREAD); | |
| 1473 const char* str = instanceKlass::cast(method->method_holder())->external_name(); | |
| 1474 oop classname = StringTable::intern((char*) str, CHECK_0); | |
| 1475 java_lang_StackTraceElement::set_declaringClass(element(), classname); | |
| 1476 // Fill in method name | |
| 1477 oop methodname = StringTable::intern(method->name(), CHECK_0); | |
| 1478 java_lang_StackTraceElement::set_methodName(element(), methodname); | |
| 1479 // Fill in source file name | |
| 1480 symbolOop source = instanceKlass::cast(method->method_holder())->source_file_name(); | |
| 1481 oop filename = StringTable::intern(source, CHECK_0); | |
| 1482 java_lang_StackTraceElement::set_fileName(element(), filename); | |
| 1483 // File in source line number | |
| 1484 int line_number; | |
| 1485 if (method->is_native()) { | |
| 1486 // Negative value different from -1 below, enabling Java code in | |
| 1487 // class java.lang.StackTraceElement to distinguish "native" from | |
| 1488 // "no LineNumberTable". | |
| 1489 line_number = -2; | |
| 1490 } else { | |
| 1491 // Returns -1 if no LineNumberTable, and otherwise actual line number | |
| 1492 line_number = method->line_number_from_bci(bci); | |
| 1493 } | |
| 1494 java_lang_StackTraceElement::set_lineNumber(element(), line_number); | |
| 1495 | |
| 1496 return element(); | |
| 1497 } | |
| 1498 | |
| 1499 | |
| 1500 void java_lang_reflect_AccessibleObject::compute_offsets() { | |
| 1142 | 1501 klassOop k = SystemDictionary::reflect_AccessibleObject_klass(); |
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1502 compute_offset(override_offset, k, vmSymbols::override_name(), vmSymbols::bool_signature()); |
| 0 | 1503 } |
| 1504 | |
| 1505 jboolean java_lang_reflect_AccessibleObject::override(oop reflect) { | |
| 1506 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1507 return (jboolean) reflect->bool_field(override_offset); | |
| 1508 } | |
| 1509 | |
| 1510 void java_lang_reflect_AccessibleObject::set_override(oop reflect, jboolean value) { | |
| 1511 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1512 reflect->bool_field_put(override_offset, (int) value); | |
| 1513 } | |
| 1514 | |
| 1515 void java_lang_reflect_Method::compute_offsets() { | |
| 1142 | 1516 klassOop k = SystemDictionary::reflect_Method_klass(); |
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1517 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1518 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1519 compute_offset(returnType_offset, k, vmSymbols::returnType_name(), vmSymbols::class_signature()); |
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1520 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1521 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1522 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1523 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 1524 // The generic signature and annotations fields are only present in 1.5 |
| 1525 signature_offset = -1; | |
| 1526 annotations_offset = -1; | |
| 1527 parameter_annotations_offset = -1; | |
| 1528 annotation_default_offset = -1; | |
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1529 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1530 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1531 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
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1532 compute_optional_offset(annotation_default_offset, k, vmSymbols::annotation_default_name(), vmSymbols::byte_array_signature()); |
| 0 | 1533 } |
| 1534 | |
| 1535 Handle java_lang_reflect_Method::create(TRAPS) { | |
| 1536 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1142 | 1537 klassOop klass = SystemDictionary::reflect_Method_klass(); |
| 0 | 1538 // This class is eagerly initialized during VM initialization, since we keep a refence |
| 1539 // to one of the methods | |
| 1540 assert(instanceKlass::cast(klass)->is_initialized(), "must be initialized"); | |
| 1541 return instanceKlass::cast(klass)->allocate_instance_handle(CHECK_NH); | |
| 1542 } | |
| 1543 | |
| 1544 oop java_lang_reflect_Method::clazz(oop reflect) { | |
| 1545 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1546 return reflect->obj_field(clazz_offset); | |
| 1547 } | |
| 1548 | |
| 1549 void java_lang_reflect_Method::set_clazz(oop reflect, oop value) { | |
| 1550 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1551 reflect->obj_field_put(clazz_offset, value); | |
| 1552 } | |
| 1553 | |
| 1554 int java_lang_reflect_Method::slot(oop reflect) { | |
| 1555 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1556 return reflect->int_field(slot_offset); | |
| 1557 } | |
| 1558 | |
| 1559 void java_lang_reflect_Method::set_slot(oop reflect, int value) { | |
| 1560 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1561 reflect->int_field_put(slot_offset, value); | |
| 1562 } | |
| 1563 | |
| 1564 oop java_lang_reflect_Method::name(oop method) { | |
| 1565 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1566 return method->obj_field(name_offset); | |
| 1567 } | |
| 1568 | |
| 1569 void java_lang_reflect_Method::set_name(oop method, oop value) { | |
| 1570 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1571 method->obj_field_put(name_offset, value); | |
| 1572 } | |
| 1573 | |
| 1574 oop java_lang_reflect_Method::return_type(oop method) { | |
| 1575 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1576 return method->obj_field(returnType_offset); | |
| 1577 } | |
| 1578 | |
| 1579 void java_lang_reflect_Method::set_return_type(oop method, oop value) { | |
| 1580 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1581 method->obj_field_put(returnType_offset, value); | |
| 1582 } | |
| 1583 | |
| 1584 oop java_lang_reflect_Method::parameter_types(oop method) { | |
| 1585 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1586 return method->obj_field(parameterTypes_offset); | |
| 1587 } | |
| 1588 | |
| 1589 void java_lang_reflect_Method::set_parameter_types(oop method, oop value) { | |
| 1590 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1591 method->obj_field_put(parameterTypes_offset, value); | |
| 1592 } | |
| 1593 | |
| 1594 oop java_lang_reflect_Method::exception_types(oop method) { | |
| 1595 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1596 return method->obj_field(exceptionTypes_offset); | |
| 1597 } | |
| 1598 | |
| 1599 void java_lang_reflect_Method::set_exception_types(oop method, oop value) { | |
| 1600 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1601 method->obj_field_put(exceptionTypes_offset, value); | |
| 1602 } | |
| 1603 | |
| 1604 int java_lang_reflect_Method::modifiers(oop method) { | |
| 1605 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1606 return method->int_field(modifiers_offset); | |
| 1607 } | |
| 1608 | |
| 1609 void java_lang_reflect_Method::set_modifiers(oop method, int value) { | |
| 1610 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1611 method->int_field_put(modifiers_offset, value); | |
| 1612 } | |
| 1613 | |
| 1614 bool java_lang_reflect_Method::has_signature_field() { | |
| 1615 return (signature_offset >= 0); | |
| 1616 } | |
| 1617 | |
| 1618 oop java_lang_reflect_Method::signature(oop method) { | |
| 1619 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1620 assert(has_signature_field(), "signature field must be present"); | |
| 1621 return method->obj_field(signature_offset); | |
| 1622 } | |
| 1623 | |
| 1624 void java_lang_reflect_Method::set_signature(oop method, oop value) { | |
| 1625 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1626 assert(has_signature_field(), "signature field must be present"); | |
| 1627 method->obj_field_put(signature_offset, value); | |
| 1628 } | |
| 1629 | |
| 1630 bool java_lang_reflect_Method::has_annotations_field() { | |
| 1631 return (annotations_offset >= 0); | |
| 1632 } | |
| 1633 | |
| 1634 oop java_lang_reflect_Method::annotations(oop method) { | |
| 1635 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1636 assert(has_annotations_field(), "annotations field must be present"); | |
| 1637 return method->obj_field(annotations_offset); | |
| 1638 } | |
| 1639 | |
| 1640 void java_lang_reflect_Method::set_annotations(oop method, oop value) { | |
| 1641 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1642 assert(has_annotations_field(), "annotations field must be present"); | |
| 1643 method->obj_field_put(annotations_offset, value); | |
| 1644 } | |
| 1645 | |
| 1646 bool java_lang_reflect_Method::has_parameter_annotations_field() { | |
| 1647 return (parameter_annotations_offset >= 0); | |
| 1648 } | |
| 1649 | |
| 1650 oop java_lang_reflect_Method::parameter_annotations(oop method) { | |
| 1651 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1652 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1653 return method->obj_field(parameter_annotations_offset); | |
| 1654 } | |
| 1655 | |
| 1656 void java_lang_reflect_Method::set_parameter_annotations(oop method, oop value) { | |
| 1657 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1658 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1659 method->obj_field_put(parameter_annotations_offset, value); | |
| 1660 } | |
| 1661 | |
| 1662 bool java_lang_reflect_Method::has_annotation_default_field() { | |
| 1663 return (annotation_default_offset >= 0); | |
| 1664 } | |
| 1665 | |
| 1666 oop java_lang_reflect_Method::annotation_default(oop method) { | |
| 1667 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1668 assert(has_annotation_default_field(), "annotation default field must be present"); | |
| 1669 return method->obj_field(annotation_default_offset); | |
| 1670 } | |
| 1671 | |
| 1672 void java_lang_reflect_Method::set_annotation_default(oop method, oop value) { | |
| 1673 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1674 assert(has_annotation_default_field(), "annotation default field must be present"); | |
| 1675 method->obj_field_put(annotation_default_offset, value); | |
| 1676 } | |
| 1677 | |
| 1678 void java_lang_reflect_Constructor::compute_offsets() { | |
| 1142 | 1679 klassOop k = SystemDictionary::reflect_Constructor_klass(); |
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1680 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1681 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1682 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1683 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1684 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 1685 // The generic signature and annotations fields are only present in 1.5 |
| 1686 signature_offset = -1; | |
| 1687 annotations_offset = -1; | |
| 1688 parameter_annotations_offset = -1; | |
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1689 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1690 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1691 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
| 0 | 1692 } |
| 1693 | |
| 1694 Handle java_lang_reflect_Constructor::create(TRAPS) { | |
| 1695 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1696 symbolHandle name = vmSymbolHandles::java_lang_reflect_Constructor(); | |
| 1697 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); | |
| 1698 instanceKlassHandle klass (THREAD, k); | |
| 1699 // Ensure it is initialized | |
| 1700 klass->initialize(CHECK_NH); | |
| 1701 return klass->allocate_instance_handle(CHECK_NH); | |
| 1702 } | |
| 1703 | |
| 1704 oop java_lang_reflect_Constructor::clazz(oop reflect) { | |
| 1705 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1706 return reflect->obj_field(clazz_offset); | |
| 1707 } | |
| 1708 | |
| 1709 void java_lang_reflect_Constructor::set_clazz(oop reflect, oop value) { | |
| 1710 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1711 reflect->obj_field_put(clazz_offset, value); | |
| 1712 } | |
| 1713 | |
| 1714 oop java_lang_reflect_Constructor::parameter_types(oop constructor) { | |
| 1715 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1716 return constructor->obj_field(parameterTypes_offset); | |
| 1717 } | |
| 1718 | |
| 1719 void java_lang_reflect_Constructor::set_parameter_types(oop constructor, oop value) { | |
| 1720 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1721 constructor->obj_field_put(parameterTypes_offset, value); | |
| 1722 } | |
| 1723 | |
| 1724 oop java_lang_reflect_Constructor::exception_types(oop constructor) { | |
| 1725 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1726 return constructor->obj_field(exceptionTypes_offset); | |
| 1727 } | |
| 1728 | |
| 1729 void java_lang_reflect_Constructor::set_exception_types(oop constructor, oop value) { | |
| 1730 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1731 constructor->obj_field_put(exceptionTypes_offset, value); | |
| 1732 } | |
| 1733 | |
| 1734 int java_lang_reflect_Constructor::slot(oop reflect) { | |
| 1735 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1736 return reflect->int_field(slot_offset); | |
| 1737 } | |
| 1738 | |
| 1739 void java_lang_reflect_Constructor::set_slot(oop reflect, int value) { | |
| 1740 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1741 reflect->int_field_put(slot_offset, value); | |
| 1742 } | |
| 1743 | |
| 1744 int java_lang_reflect_Constructor::modifiers(oop constructor) { | |
| 1745 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1746 return constructor->int_field(modifiers_offset); | |
| 1747 } | |
| 1748 | |
| 1749 void java_lang_reflect_Constructor::set_modifiers(oop constructor, int value) { | |
| 1750 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1751 constructor->int_field_put(modifiers_offset, value); | |
| 1752 } | |
| 1753 | |
| 1754 bool java_lang_reflect_Constructor::has_signature_field() { | |
| 1755 return (signature_offset >= 0); | |
| 1756 } | |
| 1757 | |
| 1758 oop java_lang_reflect_Constructor::signature(oop constructor) { | |
| 1759 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1760 assert(has_signature_field(), "signature field must be present"); | |
| 1761 return constructor->obj_field(signature_offset); | |
| 1762 } | |
| 1763 | |
| 1764 void java_lang_reflect_Constructor::set_signature(oop constructor, oop value) { | |
| 1765 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1766 assert(has_signature_field(), "signature field must be present"); | |
| 1767 constructor->obj_field_put(signature_offset, value); | |
| 1768 } | |
| 1769 | |
| 1770 bool java_lang_reflect_Constructor::has_annotations_field() { | |
| 1771 return (annotations_offset >= 0); | |
| 1772 } | |
| 1773 | |
| 1774 oop java_lang_reflect_Constructor::annotations(oop constructor) { | |
| 1775 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1776 assert(has_annotations_field(), "annotations field must be present"); | |
| 1777 return constructor->obj_field(annotations_offset); | |
| 1778 } | |
| 1779 | |
| 1780 void java_lang_reflect_Constructor::set_annotations(oop constructor, oop value) { | |
| 1781 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1782 assert(has_annotations_field(), "annotations field must be present"); | |
| 1783 constructor->obj_field_put(annotations_offset, value); | |
| 1784 } | |
| 1785 | |
| 1786 bool java_lang_reflect_Constructor::has_parameter_annotations_field() { | |
| 1787 return (parameter_annotations_offset >= 0); | |
| 1788 } | |
| 1789 | |
| 1790 oop java_lang_reflect_Constructor::parameter_annotations(oop method) { | |
| 1791 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1792 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1793 return method->obj_field(parameter_annotations_offset); | |
| 1794 } | |
| 1795 | |
| 1796 void java_lang_reflect_Constructor::set_parameter_annotations(oop method, oop value) { | |
| 1797 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1798 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1799 method->obj_field_put(parameter_annotations_offset, value); | |
| 1800 } | |
| 1801 | |
| 1802 void java_lang_reflect_Field::compute_offsets() { | |
| 1142 | 1803 klassOop k = SystemDictionary::reflect_Field_klass(); |
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1804 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1805 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1806 compute_offset(type_offset, k, vmSymbols::type_name(), vmSymbols::class_signature()); |
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1807 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1808 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 1809 // The generic signature and annotations fields are only present in 1.5 |
| 1810 signature_offset = -1; | |
| 1811 annotations_offset = -1; | |
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1812 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1813 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
| 0 | 1814 } |
| 1815 | |
| 1816 Handle java_lang_reflect_Field::create(TRAPS) { | |
| 1817 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1818 symbolHandle name = vmSymbolHandles::java_lang_reflect_Field(); | |
| 1819 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); | |
| 1820 instanceKlassHandle klass (THREAD, k); | |
| 1821 // Ensure it is initialized | |
| 1822 klass->initialize(CHECK_NH); | |
| 1823 return klass->allocate_instance_handle(CHECK_NH); | |
| 1824 } | |
| 1825 | |
| 1826 oop java_lang_reflect_Field::clazz(oop reflect) { | |
| 1827 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1828 return reflect->obj_field(clazz_offset); | |
| 1829 } | |
| 1830 | |
| 1831 void java_lang_reflect_Field::set_clazz(oop reflect, oop value) { | |
| 1832 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1833 reflect->obj_field_put(clazz_offset, value); | |
| 1834 } | |
| 1835 | |
| 1836 oop java_lang_reflect_Field::name(oop field) { | |
| 1837 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1838 return field->obj_field(name_offset); | |
| 1839 } | |
| 1840 | |
| 1841 void java_lang_reflect_Field::set_name(oop field, oop value) { | |
| 1842 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1843 field->obj_field_put(name_offset, value); | |
| 1844 } | |
| 1845 | |
| 1846 oop java_lang_reflect_Field::type(oop field) { | |
| 1847 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1848 return field->obj_field(type_offset); | |
| 1849 } | |
| 1850 | |
| 1851 void java_lang_reflect_Field::set_type(oop field, oop value) { | |
| 1852 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1853 field->obj_field_put(type_offset, value); | |
| 1854 } | |
| 1855 | |
| 1856 int java_lang_reflect_Field::slot(oop reflect) { | |
| 1857 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1858 return reflect->int_field(slot_offset); | |
| 1859 } | |
| 1860 | |
| 1861 void java_lang_reflect_Field::set_slot(oop reflect, int value) { | |
| 1862 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1863 reflect->int_field_put(slot_offset, value); | |
| 1864 } | |
| 1865 | |
| 1866 int java_lang_reflect_Field::modifiers(oop field) { | |
| 1867 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1868 return field->int_field(modifiers_offset); | |
| 1869 } | |
| 1870 | |
| 1871 void java_lang_reflect_Field::set_modifiers(oop field, int value) { | |
| 1872 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1873 field->int_field_put(modifiers_offset, value); | |
| 1874 } | |
| 1875 | |
| 1876 bool java_lang_reflect_Field::has_signature_field() { | |
| 1877 return (signature_offset >= 0); | |
| 1878 } | |
| 1879 | |
| 1880 oop java_lang_reflect_Field::signature(oop field) { | |
| 1881 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1882 assert(has_signature_field(), "signature field must be present"); | |
| 1883 return field->obj_field(signature_offset); | |
| 1884 } | |
| 1885 | |
| 1886 void java_lang_reflect_Field::set_signature(oop field, oop value) { | |
| 1887 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1888 assert(has_signature_field(), "signature field must be present"); | |
| 1889 field->obj_field_put(signature_offset, value); | |
| 1890 } | |
| 1891 | |
| 1892 bool java_lang_reflect_Field::has_annotations_field() { | |
| 1893 return (annotations_offset >= 0); | |
| 1894 } | |
| 1895 | |
| 1896 oop java_lang_reflect_Field::annotations(oop field) { | |
| 1897 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1898 assert(has_annotations_field(), "annotations field must be present"); | |
| 1899 return field->obj_field(annotations_offset); | |
| 1900 } | |
| 1901 | |
| 1902 void java_lang_reflect_Field::set_annotations(oop field, oop value) { | |
| 1903 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1904 assert(has_annotations_field(), "annotations field must be present"); | |
| 1905 field->obj_field_put(annotations_offset, value); | |
| 1906 } | |
| 1907 | |
| 1908 | |
| 1909 void sun_reflect_ConstantPool::compute_offsets() { | |
| 1142 | 1910 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
| 0 | 1911 // This null test can be removed post beta |
| 1912 if (k != NULL) { | |
|
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1913 compute_offset(_cp_oop_offset, k, vmSymbols::constantPoolOop_name(), vmSymbols::object_signature()); |
| 0 | 1914 } |
| 1915 } | |
| 1916 | |
| 1917 | |
| 1918 Handle sun_reflect_ConstantPool::create(TRAPS) { | |
| 1919 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1142 | 1920 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
| 0 | 1921 instanceKlassHandle klass (THREAD, k); |
| 1922 // Ensure it is initialized | |
| 1923 klass->initialize(CHECK_NH); | |
| 1924 return klass->allocate_instance_handle(CHECK_NH); | |
| 1925 } | |
| 1926 | |
| 1927 | |
| 1928 oop sun_reflect_ConstantPool::cp_oop(oop reflect) { | |
| 1929 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1930 return reflect->obj_field(_cp_oop_offset); | |
| 1931 } | |
| 1932 | |
| 1933 | |
| 1934 void sun_reflect_ConstantPool::set_cp_oop(oop reflect, oop value) { | |
| 1935 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1936 reflect->obj_field_put(_cp_oop_offset, value); | |
| 1937 } | |
| 1938 | |
| 1939 void sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets() { | |
| 1142 | 1940 klassOop k = SystemDictionary::reflect_UnsafeStaticFieldAccessorImpl_klass(); |
| 0 | 1941 // This null test can be removed post beta |
| 1942 if (k != NULL) { | |
|
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1943 compute_offset(_base_offset, k, |
| 0 | 1944 vmSymbols::base_name(), vmSymbols::object_signature()); |
| 1945 } | |
| 1946 } | |
| 1947 | |
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1948 oop java_lang_boxing_object::initialize_and_allocate(BasicType type, TRAPS) { |
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1949 klassOop k = SystemDictionary::box_klass(type); |
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1950 if (k == NULL) return NULL; |
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1951 instanceKlassHandle h (THREAD, k); |
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1952 if (!h->is_initialized()) h->initialize(CHECK_0); |
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1953 return h->allocate_instance(THREAD); |
| 0 | 1954 } |
| 1955 | |
| 1956 | |
| 1957 oop java_lang_boxing_object::create(BasicType type, jvalue* value, TRAPS) { | |
|
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1958 oop box = initialize_and_allocate(type, CHECK_0); |
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1959 if (box == NULL) return NULL; |
| 0 | 1960 switch (type) { |
| 1961 case T_BOOLEAN: | |
| 1962 box->bool_field_put(value_offset, value->z); | |
| 1963 break; | |
| 1964 case T_CHAR: | |
| 1965 box->char_field_put(value_offset, value->c); | |
| 1966 break; | |
| 1967 case T_FLOAT: | |
| 1968 box->float_field_put(value_offset, value->f); | |
| 1969 break; | |
| 1970 case T_DOUBLE: | |
|
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1971 box->double_field_put(long_value_offset, value->d); |
| 0 | 1972 break; |
| 1973 case T_BYTE: | |
| 1974 box->byte_field_put(value_offset, value->b); | |
| 1975 break; | |
| 1976 case T_SHORT: | |
| 1977 box->short_field_put(value_offset, value->s); | |
| 1978 break; | |
| 1979 case T_INT: | |
| 1980 box->int_field_put(value_offset, value->i); | |
| 1981 break; | |
| 1982 case T_LONG: | |
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1983 box->long_field_put(long_value_offset, value->j); |
| 0 | 1984 break; |
| 1985 default: | |
| 1986 return NULL; | |
| 1987 } | |
| 1988 return box; | |
| 1989 } | |
| 1990 | |
| 1991 | |
|
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1992 BasicType java_lang_boxing_object::basic_type(oop box) { |
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1993 if (box == NULL) return T_ILLEGAL; |
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1994 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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1995 if (type == T_OBJECT) // 'unknown' value returned by SD::bkt |
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1996 return T_ILLEGAL; |
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1997 return type; |
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1998 } |
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1999 |
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2000 |
| 0 | 2001 BasicType java_lang_boxing_object::get_value(oop box, jvalue* value) { |
|
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2002 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2003 switch (type) { |
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2004 case T_BOOLEAN: |
| 0 | 2005 value->z = box->bool_field(value_offset); |
|
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2006 break; |
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2007 case T_CHAR: |
| 0 | 2008 value->c = box->char_field(value_offset); |
|
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2009 break; |
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2010 case T_FLOAT: |
| 0 | 2011 value->f = box->float_field(value_offset); |
|
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2012 break; |
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2013 case T_DOUBLE: |
|
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2014 value->d = box->double_field(long_value_offset); |
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2015 break; |
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2016 case T_BYTE: |
| 0 | 2017 value->b = box->byte_field(value_offset); |
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2018 break; |
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2019 case T_SHORT: |
| 0 | 2020 value->s = box->short_field(value_offset); |
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2021 break; |
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2022 case T_INT: |
| 0 | 2023 value->i = box->int_field(value_offset); |
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2024 break; |
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2025 case T_LONG: |
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2026 value->j = box->long_field(long_value_offset); |
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2027 break; |
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2028 default: |
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2029 return T_ILLEGAL; |
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2030 } // end switch |
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2031 return type; |
| 0 | 2032 } |
| 2033 | |
| 2034 | |
| 2035 BasicType java_lang_boxing_object::set_value(oop box, jvalue* value) { | |
|
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2036 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2037 switch (type) { |
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2038 case T_BOOLEAN: |
| 0 | 2039 box->bool_field_put(value_offset, value->z); |
|
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2040 break; |
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2041 case T_CHAR: |
| 0 | 2042 box->char_field_put(value_offset, value->c); |
|
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2043 break; |
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2044 case T_FLOAT: |
| 0 | 2045 box->float_field_put(value_offset, value->f); |
|
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2046 break; |
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2047 case T_DOUBLE: |
|
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2048 box->double_field_put(long_value_offset, value->d); |
|
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2049 break; |
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2050 case T_BYTE: |
| 0 | 2051 box->byte_field_put(value_offset, value->b); |
|
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2052 break; |
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2053 case T_SHORT: |
| 0 | 2054 box->short_field_put(value_offset, value->s); |
|
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2055 break; |
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2056 case T_INT: |
| 0 | 2057 box->int_field_put(value_offset, value->i); |
|
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2058 break; |
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2059 case T_LONG: |
|
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2060 box->long_field_put(long_value_offset, value->j); |
|
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2061 break; |
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2062 default: |
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2063 return T_ILLEGAL; |
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2064 } // end switch |
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2065 return type; |
| 0 | 2066 } |
| 2067 | |
| 2068 | |
|
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2069 void java_lang_boxing_object::print(BasicType type, jvalue* value, outputStream* st) { |
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2070 switch (type) { |
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2071 case T_BOOLEAN: st->print("%s", value->z ? "true" : "false"); break; |
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2072 case T_CHAR: st->print("%d", value->c); break; |
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2073 case T_BYTE: st->print("%d", value->b); break; |
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2074 case T_SHORT: st->print("%d", value->s); break; |
|
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2075 case T_INT: st->print("%d", value->i); break; |
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2076 case T_LONG: st->print(INT64_FORMAT, value->j); break; |
|
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2077 case T_FLOAT: st->print("%f", value->f); break; |
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2078 case T_DOUBLE: st->print("%lf", value->d); break; |
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2079 default: st->print("type %d?", type); break; |
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2080 } |
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2081 } |
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2082 |
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2083 |
| 0 | 2084 // Support for java_lang_ref_Reference |
|
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2085 oop java_lang_ref_Reference::pending_list_lock() { |
| 1142 | 2086 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
|
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2087 char *addr = (((char *)ik->start_of_static_fields()) + static_lock_offset); |
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2088 if (UseCompressedOops) { |
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2089 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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2090 } else { |
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2091 return oopDesc::load_decode_heap_oop((oop*)addr); |
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2092 } |
| 0 | 2093 } |
| 2094 | |
|
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2095 HeapWord *java_lang_ref_Reference::pending_list_addr() { |
| 1142 | 2096 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
|
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2097 char *addr = (((char *)ik->start_of_static_fields()) + static_pending_offset); |
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2098 // XXX This might not be HeapWord aligned, almost rather be char *. |
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2099 return (HeapWord*)addr; |
| 0 | 2100 } |
| 2101 | |
|
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2102 oop java_lang_ref_Reference::pending_list() { |
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2103 char *addr = (char *)pending_list_addr(); |
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2104 if (UseCompressedOops) { |
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2105 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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2106 } else { |
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2107 return oopDesc::load_decode_heap_oop((oop*)addr); |
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|
2108 } |
| 0 | 2109 } |
| 2110 | |
| 2111 | |
| 2112 // Support for java_lang_ref_SoftReference | |
| 2113 | |
| 2114 jlong java_lang_ref_SoftReference::timestamp(oop ref) { | |
| 2115 return ref->long_field(timestamp_offset); | |
| 2116 } | |
| 2117 | |
| 2118 jlong java_lang_ref_SoftReference::clock() { | |
| 1142 | 2119 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
| 0 | 2120 int offset = ik->offset_of_static_fields() + static_clock_offset; |
| 2121 | |
| 1142 | 2122 return SystemDictionary::SoftReference_klass()->long_field(offset); |
| 0 | 2123 } |
| 2124 | |
| 2125 void java_lang_ref_SoftReference::set_clock(jlong value) { | |
| 1142 | 2126 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
| 0 | 2127 int offset = ik->offset_of_static_fields() + static_clock_offset; |
| 2128 | |
| 1142 | 2129 SystemDictionary::SoftReference_klass()->long_field_put(offset, value); |
| 0 | 2130 } |
| 2131 | |
| 2132 | |
| 710 | 2133 // Support for java_dyn_MethodHandle |
| 2134 | |
| 2135 int java_dyn_MethodHandle::_type_offset; | |
| 2136 int java_dyn_MethodHandle::_vmtarget_offset; | |
| 2137 int java_dyn_MethodHandle::_vmentry_offset; | |
| 2138 int java_dyn_MethodHandle::_vmslots_offset; | |
| 2139 | |
| 2140 int sun_dyn_MemberName::_clazz_offset; | |
| 2141 int sun_dyn_MemberName::_name_offset; | |
| 2142 int sun_dyn_MemberName::_type_offset; | |
| 2143 int sun_dyn_MemberName::_flags_offset; | |
| 2144 int sun_dyn_MemberName::_vmtarget_offset; | |
| 2145 int sun_dyn_MemberName::_vmindex_offset; | |
| 2146 | |
| 2147 int sun_dyn_DirectMethodHandle::_vmindex_offset; | |
| 2148 | |
| 2149 int sun_dyn_BoundMethodHandle::_argument_offset; | |
| 2150 int sun_dyn_BoundMethodHandle::_vmargslot_offset; | |
| 2151 | |
| 2152 int sun_dyn_AdapterMethodHandle::_conversion_offset; | |
| 2153 | |
| 2154 void java_dyn_MethodHandle::compute_offsets() { | |
| 2155 klassOop k = SystemDictionary::MethodHandle_klass(); | |
| 2156 if (k != NULL && EnableMethodHandles) { | |
| 2157 compute_offset(_type_offset, k, vmSymbols::type_name(), vmSymbols::java_dyn_MethodType_signature(), true); | |
| 2158 compute_offset(_vmtarget_offset, k, vmSymbols::vmtarget_name(), vmSymbols::object_signature(), true); | |
| 2159 compute_offset(_vmentry_offset, k, vmSymbols::vmentry_name(), vmSymbols::machine_word_signature(), true); | |
| 2160 | |
| 2161 // Note: MH.vmslots (if it is present) is a hoisted copy of MH.type.form.vmslots. | |
| 2162 // It is optional pending experiments to keep or toss. | |
| 2163 compute_optional_offset(_vmslots_offset, k, vmSymbols::vmslots_name(), vmSymbols::int_signature(), true); | |
| 2164 } | |
| 2165 } | |
| 2166 | |
| 2167 void sun_dyn_MemberName::compute_offsets() { | |
| 2168 klassOop k = SystemDictionary::MemberName_klass(); | |
| 2169 if (k != NULL && EnableMethodHandles) { | |
| 2170 compute_offset(_clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); | |
| 2171 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); | |
| 2172 compute_offset(_type_offset, k, vmSymbols::type_name(), vmSymbols::object_signature()); | |
| 2173 compute_offset(_flags_offset, k, vmSymbols::flags_name(), vmSymbols::int_signature()); | |
| 2174 compute_offset(_vmtarget_offset, k, vmSymbols::vmtarget_name(), vmSymbols::object_signature()); | |
| 2175 compute_offset(_vmindex_offset, k, vmSymbols::vmindex_name(), vmSymbols::int_signature()); | |
| 2176 } | |
| 2177 } | |
| 2178 | |
| 2179 void sun_dyn_DirectMethodHandle::compute_offsets() { | |
| 2180 klassOop k = SystemDictionary::DirectMethodHandle_klass(); | |
| 2181 if (k != NULL && EnableMethodHandles) { | |
| 2182 compute_offset(_vmindex_offset, k, vmSymbols::vmindex_name(), vmSymbols::int_signature(), true); | |
| 2183 } | |
| 2184 } | |
| 2185 | |
| 2186 void sun_dyn_BoundMethodHandle::compute_offsets() { | |
| 2187 klassOop k = SystemDictionary::BoundMethodHandle_klass(); | |
| 2188 if (k != NULL && EnableMethodHandles) { | |
| 2189 compute_offset(_vmargslot_offset, k, vmSymbols::vmargslot_name(), vmSymbols::int_signature(), true); | |
| 2190 compute_offset(_argument_offset, k, vmSymbols::argument_name(), vmSymbols::object_signature(), true); | |
| 2191 } | |
| 2192 } | |
| 2193 | |
| 2194 void sun_dyn_AdapterMethodHandle::compute_offsets() { | |
| 2195 klassOop k = SystemDictionary::AdapterMethodHandle_klass(); | |
| 2196 if (k != NULL && EnableMethodHandles) { | |
| 2197 compute_offset(_conversion_offset, k, vmSymbols::conversion_name(), vmSymbols::int_signature(), true); | |
| 2198 } | |
| 2199 } | |
| 2200 | |
| 2201 oop java_dyn_MethodHandle::type(oop mh) { | |
| 2202 return mh->obj_field(_type_offset); | |
| 2203 } | |
| 2204 | |
| 2205 void java_dyn_MethodHandle::set_type(oop mh, oop mtype) { | |
| 2206 mh->obj_field_put(_type_offset, mtype); | |
| 2207 } | |
| 2208 | |
| 2209 int java_dyn_MethodHandle::vmslots(oop mh) { | |
| 2210 int vmslots_offset = _vmslots_offset; | |
| 2211 if (vmslots_offset != 0) { | |
| 2212 #ifdef ASSERT | |
| 2213 int x = mh->int_field(vmslots_offset); | |
| 2214 int y = compute_vmslots(mh); | |
| 2215 assert(x == y, "correct hoisted value"); | |
| 2216 #endif | |
| 2217 return mh->int_field(vmslots_offset); | |
| 2218 } else { | |
| 2219 return compute_vmslots(mh); | |
| 2220 } | |
| 2221 } | |
| 2222 | |
| 2223 // if MH.vmslots exists, hoist into it the value of type.form.vmslots | |
| 2224 void java_dyn_MethodHandle::init_vmslots(oop mh) { | |
| 2225 int vmslots_offset = _vmslots_offset; | |
| 2226 if (vmslots_offset != 0) { | |
| 2227 mh->int_field_put(vmslots_offset, compute_vmslots(mh)); | |
| 2228 } | |
| 2229 } | |
| 2230 | |
| 2231 // fetch type.form.vmslots, which is the number of JVM stack slots | |
| 2232 // required to carry the arguments of this MH | |
| 2233 int java_dyn_MethodHandle::compute_vmslots(oop mh) { | |
| 2234 oop mtype = type(mh); | |
| 2235 if (mtype == NULL) return 0; // Java code would get NPE | |
| 2236 oop form = java_dyn_MethodType::form(mtype); | |
| 2237 if (form == NULL) return 0; // Java code would get NPE | |
| 2238 return java_dyn_MethodTypeForm::vmslots(form); | |
| 2239 } | |
| 2240 | |
| 2241 // fetch the low-level entry point for this mh | |
| 2242 MethodHandleEntry* java_dyn_MethodHandle::vmentry(oop mh) { | |
| 2243 return (MethodHandleEntry*) mh->address_field(_vmentry_offset); | |
| 2244 } | |
| 2245 | |
| 2246 void java_dyn_MethodHandle::set_vmentry(oop mh, MethodHandleEntry* me) { | |
| 2247 assert(_vmentry_offset != 0, "must be present"); | |
| 2248 | |
| 2249 // This is always the final step that initializes a valid method handle: | |
| 2250 mh->release_address_field_put(_vmentry_offset, (address) me); | |
| 2251 | |
| 2252 // There should be enough memory barriers on exit from native methods | |
| 2253 // to ensure that the MH is fully initialized to all threads before | |
| 2254 // Java code can publish it in global data structures. | |
| 2255 // But just in case, we use release_address_field_put. | |
| 2256 } | |
| 2257 | |
| 2258 /// MemberName accessors | |
| 2259 | |
| 2260 oop sun_dyn_MemberName::clazz(oop mname) { | |
| 2261 assert(is_instance(mname), "wrong type"); | |
| 2262 return mname->obj_field(_clazz_offset); | |
| 2263 } | |
| 2264 | |
| 2265 void sun_dyn_MemberName::set_clazz(oop mname, oop clazz) { | |
| 2266 assert(is_instance(mname), "wrong type"); | |
| 2267 mname->obj_field_put(_clazz_offset, clazz); | |
| 2268 } | |
| 2269 | |
| 2270 oop sun_dyn_MemberName::name(oop mname) { | |
| 2271 assert(is_instance(mname), "wrong type"); | |
| 2272 return mname->obj_field(_name_offset); | |
| 2273 } | |
| 2274 | |
| 2275 void sun_dyn_MemberName::set_name(oop mname, oop name) { | |
| 2276 assert(is_instance(mname), "wrong type"); | |
| 2277 mname->obj_field_put(_name_offset, name); | |
| 2278 } | |
| 2279 | |
| 2280 oop sun_dyn_MemberName::type(oop mname) { | |
| 2281 assert(is_instance(mname), "wrong type"); | |
| 2282 return mname->obj_field(_type_offset); | |
| 2283 } | |
| 2284 | |
| 2285 void sun_dyn_MemberName::set_type(oop mname, oop type) { | |
| 2286 assert(is_instance(mname), "wrong type"); | |
| 2287 mname->obj_field_put(_type_offset, type); | |
| 2288 } | |
| 2289 | |
| 2290 int sun_dyn_MemberName::flags(oop mname) { | |
| 2291 assert(is_instance(mname), "wrong type"); | |
| 2292 return mname->int_field(_flags_offset); | |
| 2293 } | |
| 2294 | |
| 2295 void sun_dyn_MemberName::set_flags(oop mname, int flags) { | |
| 2296 assert(is_instance(mname), "wrong type"); | |
| 2297 mname->int_field_put(_flags_offset, flags); | |
| 2298 } | |
| 2299 | |
| 2300 oop sun_dyn_MemberName::vmtarget(oop mname) { | |
| 2301 assert(is_instance(mname), "wrong type"); | |
| 2302 return mname->obj_field(_vmtarget_offset); | |
| 2303 } | |
| 2304 | |
| 2305 void sun_dyn_MemberName::set_vmtarget(oop mname, oop ref) { | |
| 2306 assert(is_instance(mname), "wrong type"); | |
| 2307 mname->obj_field_put(_vmtarget_offset, ref); | |
| 2308 } | |
| 2309 | |
| 2310 int sun_dyn_MemberName::vmindex(oop mname) { | |
| 2311 assert(is_instance(mname), "wrong type"); | |
| 2312 return mname->int_field(_vmindex_offset); | |
| 2313 } | |
| 2314 | |
| 2315 void sun_dyn_MemberName::set_vmindex(oop mname, int index) { | |
| 2316 assert(is_instance(mname), "wrong type"); | |
| 2317 mname->int_field_put(_vmindex_offset, index); | |
| 2318 } | |
| 2319 | |
| 2320 oop java_dyn_MethodHandle::vmtarget(oop mh) { | |
| 2321 assert(is_instance(mh), "MH only"); | |
| 2322 return mh->obj_field(_vmtarget_offset); | |
| 2323 } | |
| 2324 | |
| 2325 void java_dyn_MethodHandle::set_vmtarget(oop mh, oop ref) { | |
| 2326 assert(is_instance(mh), "MH only"); | |
| 2327 mh->obj_field_put(_vmtarget_offset, ref); | |
| 2328 } | |
| 2329 | |
| 2330 int sun_dyn_DirectMethodHandle::vmindex(oop mh) { | |
| 2331 assert(is_instance(mh), "DMH only"); | |
| 2332 return mh->int_field(_vmindex_offset); | |
| 2333 } | |
| 2334 | |
| 2335 void sun_dyn_DirectMethodHandle::set_vmindex(oop mh, int index) { | |
| 2336 assert(is_instance(mh), "DMH only"); | |
| 2337 mh->int_field_put(_vmindex_offset, index); | |
| 2338 } | |
| 2339 | |
| 2340 int sun_dyn_BoundMethodHandle::vmargslot(oop mh) { | |
| 2341 assert(is_instance(mh), "BMH only"); | |
| 2342 return mh->int_field(_vmargslot_offset); | |
| 2343 } | |
| 2344 | |
| 2345 oop sun_dyn_BoundMethodHandle::argument(oop mh) { | |
| 2346 assert(is_instance(mh), "BMH only"); | |
| 2347 return mh->obj_field(_argument_offset); | |
| 2348 } | |
| 2349 | |
| 2350 int sun_dyn_AdapterMethodHandle::conversion(oop mh) { | |
| 2351 assert(is_instance(mh), "AMH only"); | |
| 2352 return mh->int_field(_conversion_offset); | |
| 2353 } | |
| 2354 | |
| 2355 void sun_dyn_AdapterMethodHandle::set_conversion(oop mh, int conv) { | |
| 2356 assert(is_instance(mh), "AMH only"); | |
| 2357 mh->int_field_put(_conversion_offset, conv); | |
| 2358 } | |
| 2359 | |
| 2360 | |
| 2361 // Support for java_dyn_MethodType | |
| 2362 | |
| 2363 int java_dyn_MethodType::_rtype_offset; | |
| 2364 int java_dyn_MethodType::_ptypes_offset; | |
| 2365 int java_dyn_MethodType::_form_offset; | |
| 2366 | |
| 2367 void java_dyn_MethodType::compute_offsets() { | |
| 2368 klassOop k = SystemDictionary::MethodType_klass(); | |
| 2369 if (k != NULL) { | |
| 2370 compute_offset(_rtype_offset, k, vmSymbols::rtype_name(), vmSymbols::class_signature()); | |
| 2371 compute_offset(_ptypes_offset, k, vmSymbols::ptypes_name(), vmSymbols::class_array_signature()); | |
| 2372 compute_offset(_form_offset, k, vmSymbols::form_name(), vmSymbols::java_dyn_MethodTypeForm_signature()); | |
| 2373 } | |
| 2374 } | |
| 2375 | |
| 2376 void java_dyn_MethodType::print_signature(oop mt, outputStream* st) { | |
| 2377 st->print("("); | |
| 2378 objArrayOop pts = ptypes(mt); | |
| 2379 for (int i = 0, limit = pts->length(); i < limit; i++) { | |
| 2380 java_lang_Class::print_signature(pts->obj_at(i), st); | |
| 2381 } | |
| 2382 st->print(")"); | |
| 2383 java_lang_Class::print_signature(rtype(mt), st); | |
| 2384 } | |
| 2385 | |
| 2386 symbolOop java_dyn_MethodType::as_signature(oop mt, bool intern_if_not_found, TRAPS) { | |
| 2387 ResourceMark rm; | |
| 2388 stringStream buffer(128); | |
| 2389 print_signature(mt, &buffer); | |
| 2390 const char* sigstr = buffer.base(); | |
| 2391 int siglen = (int) buffer.size(); | |
| 2392 if (!intern_if_not_found) | |
| 2393 return SymbolTable::probe(sigstr, siglen); | |
| 2394 else | |
| 2395 return oopFactory::new_symbol(sigstr, siglen, THREAD); | |
| 2396 } | |
| 2397 | |
| 2398 oop java_dyn_MethodType::rtype(oop mt) { | |
| 2399 assert(is_instance(mt), "must be a MethodType"); | |
| 2400 return mt->obj_field(_rtype_offset); | |
| 2401 } | |
| 2402 | |
| 2403 objArrayOop java_dyn_MethodType::ptypes(oop mt) { | |
| 2404 assert(is_instance(mt), "must be a MethodType"); | |
| 2405 return (objArrayOop) mt->obj_field(_ptypes_offset); | |
| 2406 } | |
| 2407 | |
| 2408 oop java_dyn_MethodType::form(oop mt) { | |
| 2409 assert(is_instance(mt), "must be a MethodType"); | |
| 2410 return mt->obj_field(_form_offset); | |
| 2411 } | |
| 2412 | |
| 2413 oop java_dyn_MethodType::ptype(oop mt, int idx) { | |
| 2414 return ptypes(mt)->obj_at(idx); | |
| 2415 } | |
| 2416 | |
|
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2417 int java_dyn_MethodType::ptype_count(oop mt) { |
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2418 return ptypes(mt)->length(); |
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2419 } |
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2420 |
| 710 | 2421 |
| 2422 | |
| 2423 // Support for java_dyn_MethodTypeForm | |
| 2424 | |
| 2425 int java_dyn_MethodTypeForm::_vmslots_offset; | |
| 2426 int java_dyn_MethodTypeForm::_erasedType_offset; | |
| 2427 | |
| 2428 void java_dyn_MethodTypeForm::compute_offsets() { | |
| 2429 klassOop k = SystemDictionary::MethodTypeForm_klass(); | |
| 2430 if (k != NULL) { | |
| 2431 compute_optional_offset(_vmslots_offset, k, vmSymbols::vmslots_name(), vmSymbols::int_signature(), true); | |
| 2432 compute_optional_offset(_erasedType_offset, k, vmSymbols::erasedType_name(), vmSymbols::java_dyn_MethodType_signature(), true); | |
| 2433 } | |
| 2434 } | |
| 2435 | |
| 2436 int java_dyn_MethodTypeForm::vmslots(oop mtform) { | |
| 2437 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); | |
| 2438 return mtform->int_field(_vmslots_offset); | |
| 2439 } | |
| 2440 | |
| 2441 oop java_dyn_MethodTypeForm::erasedType(oop mtform) { | |
| 2442 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); | |
| 2443 return mtform->obj_field(_erasedType_offset); | |
| 2444 } | |
| 2445 | |
| 2446 | |
|
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2447 // Support for java_dyn_CallSite |
|
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2448 |
|
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2449 int java_dyn_CallSite::_target_offset; |
|
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2450 int java_dyn_CallSite::_caller_method_offset; |
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2451 int java_dyn_CallSite::_caller_bci_offset; |
|
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2452 |
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2453 void java_dyn_CallSite::compute_offsets() { |
|
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2454 if (!EnableInvokeDynamic) return; |
|
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2455 klassOop k = SystemDictionary::CallSite_klass(); |
|
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2456 if (k != NULL) { |
|
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2457 compute_offset(_target_offset, k, vmSymbols::target_name(), vmSymbols::java_dyn_MethodHandle_signature()); |
|
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2458 compute_offset(_caller_method_offset, k, vmSymbols::vmmethod_name(), vmSymbols::sun_dyn_MemberName_signature()); |
|
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2459 compute_offset(_caller_bci_offset, k, vmSymbols::vmindex_name(), vmSymbols::int_signature()); |
|
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2460 } |
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|
2461 } |
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2462 |
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2463 oop java_dyn_CallSite::target(oop site) { |
|
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2464 return site->obj_field(_target_offset); |
|
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|
2465 } |
|
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2466 |
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2467 void java_dyn_CallSite::set_target(oop site, oop target) { |
|
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2468 site->obj_field_put(_target_offset, target); |
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|
2469 } |
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2470 |
|
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2471 oop java_dyn_CallSite::caller_method(oop site) { |
|
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2472 return site->obj_field(_caller_method_offset); |
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|
2473 } |
|
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2474 |
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2475 void java_dyn_CallSite::set_caller_method(oop site, oop ref) { |
|
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2476 site->obj_field_put(_caller_method_offset, ref); |
|
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|
2477 } |
|
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|
2478 |
|
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2479 jint java_dyn_CallSite::caller_bci(oop site) { |
|
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2480 return site->int_field(_caller_bci_offset); |
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|
2481 } |
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|
2482 |
|
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2483 void java_dyn_CallSite::set_caller_bci(oop site, jint bci) { |
|
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2484 site->int_field_put(_caller_bci_offset, bci); |
|
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|
2485 } |
| 710 | 2486 |
| 2487 | |
| 0 | 2488 // Support for java_security_AccessControlContext |
| 2489 | |
| 2490 int java_security_AccessControlContext::_context_offset = 0; | |
| 2491 int java_security_AccessControlContext::_privilegedContext_offset = 0; | |
| 2492 int java_security_AccessControlContext::_isPrivileged_offset = 0; | |
| 2493 | |
| 2494 void java_security_AccessControlContext::compute_offsets() { | |
| 2495 assert(_isPrivileged_offset == 0, "offsets should be initialized only once"); | |
| 2496 fieldDescriptor fd; | |
| 2497 instanceKlass* ik = instanceKlass::cast(SystemDictionary::AccessControlContext_klass()); | |
| 2498 | |
| 2499 if (!ik->find_local_field(vmSymbols::context_name(), vmSymbols::protectiondomain_signature(), &fd)) { | |
| 2500 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2501 } | |
| 2502 _context_offset = fd.offset(); | |
| 2503 | |
| 2504 if (!ik->find_local_field(vmSymbols::privilegedContext_name(), vmSymbols::accesscontrolcontext_signature(), &fd)) { | |
| 2505 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2506 } | |
| 2507 _privilegedContext_offset = fd.offset(); | |
| 2508 | |
| 2509 if (!ik->find_local_field(vmSymbols::isPrivileged_name(), vmSymbols::bool_signature(), &fd)) { | |
| 2510 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2511 } | |
| 2512 _isPrivileged_offset = fd.offset(); | |
| 2513 } | |
| 2514 | |
| 2515 | |
| 2516 oop java_security_AccessControlContext::create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS) { | |
| 2517 assert(_isPrivileged_offset != 0, "offsets should have been initialized"); | |
| 2518 // Ensure klass is initialized | |
| 2519 instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->initialize(CHECK_0); | |
| 2520 // Allocate result | |
| 2521 oop result = instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->allocate_instance(CHECK_0); | |
| 2522 // Fill in values | |
| 2523 result->obj_field_put(_context_offset, context()); | |
| 2524 result->obj_field_put(_privilegedContext_offset, privileged_context()); | |
| 2525 result->bool_field_put(_isPrivileged_offset, isPrivileged); | |
| 2526 return result; | |
| 2527 } | |
| 2528 | |
| 2529 | |
| 2530 // Support for java_lang_ClassLoader | |
| 2531 | |
| 2532 oop java_lang_ClassLoader::parent(oop loader) { | |
| 2533 assert(loader->is_oop(), "loader must be oop"); | |
| 2534 return loader->obj_field(parent_offset); | |
| 2535 } | |
| 2536 | |
| 2537 | |
| 2538 bool java_lang_ClassLoader::is_trusted_loader(oop loader) { | |
| 2539 // Fix for 4474172; see evaluation for more details | |
| 2540 loader = non_reflection_class_loader(loader); | |
| 2541 | |
| 2542 oop cl = SystemDictionary::java_system_loader(); | |
| 2543 while(cl != NULL) { | |
| 2544 if (cl == loader) return true; | |
| 2545 cl = parent(cl); | |
| 2546 } | |
| 2547 return false; | |
| 2548 } | |
| 2549 | |
| 2550 oop java_lang_ClassLoader::non_reflection_class_loader(oop loader) { | |
| 2551 if (loader != NULL) { | |
| 2552 // See whether this is one of the class loaders associated with | |
| 2553 // the generated bytecodes for reflection, and if so, "magically" | |
| 2554 // delegate to its parent to prevent class loading from occurring | |
| 2555 // in places where applications using reflection didn't expect it. | |
| 1142 | 2556 klassOop delegating_cl_class = SystemDictionary::reflect_DelegatingClassLoader_klass(); |
| 0 | 2557 // This might be null in non-1.4 JDKs |
| 2558 if (delegating_cl_class != NULL && loader->is_a(delegating_cl_class)) { | |
| 2559 return parent(loader); | |
| 2560 } | |
| 2561 } | |
| 2562 return loader; | |
| 2563 } | |
| 2564 | |
| 2565 | |
| 2566 // Support for java_lang_System | |
| 2567 | |
| 2568 void java_lang_System::compute_offsets() { | |
| 2569 assert(offset_of_static_fields == 0, "offsets should be initialized only once"); | |
| 2570 | |
| 1142 | 2571 instanceKlass* ik = instanceKlass::cast(SystemDictionary::System_klass()); |
| 0 | 2572 offset_of_static_fields = ik->offset_of_static_fields(); |
| 2573 } | |
| 2574 | |
| 2575 int java_lang_System::in_offset_in_bytes() { | |
| 2576 return (offset_of_static_fields + static_in_offset); | |
| 2577 } | |
| 2578 | |
| 2579 | |
| 2580 int java_lang_System::out_offset_in_bytes() { | |
| 2581 return (offset_of_static_fields + static_out_offset); | |
| 2582 } | |
| 2583 | |
| 2584 | |
| 2585 int java_lang_System::err_offset_in_bytes() { | |
| 2586 return (offset_of_static_fields + static_err_offset); | |
| 2587 } | |
| 2588 | |
| 2589 | |
| 2590 | |
| 2591 int java_lang_String::value_offset; | |
| 2592 int java_lang_String::offset_offset; | |
| 2593 int java_lang_String::count_offset; | |
| 2594 int java_lang_String::hash_offset; | |
| 2595 int java_lang_Class::klass_offset; | |
| 2596 int java_lang_Class::array_klass_offset; | |
| 2597 int java_lang_Class::resolved_constructor_offset; | |
| 2598 int java_lang_Class::number_of_fake_oop_fields; | |
| 2599 int java_lang_Throwable::backtrace_offset; | |
| 2600 int java_lang_Throwable::detailMessage_offset; | |
| 2601 int java_lang_Throwable::cause_offset; | |
| 2602 int java_lang_Throwable::stackTrace_offset; | |
| 2603 int java_lang_reflect_AccessibleObject::override_offset; | |
| 2604 int java_lang_reflect_Method::clazz_offset; | |
| 2605 int java_lang_reflect_Method::name_offset; | |
| 2606 int java_lang_reflect_Method::returnType_offset; | |
| 2607 int java_lang_reflect_Method::parameterTypes_offset; | |
| 2608 int java_lang_reflect_Method::exceptionTypes_offset; | |
| 2609 int java_lang_reflect_Method::slot_offset; | |
| 2610 int java_lang_reflect_Method::modifiers_offset; | |
| 2611 int java_lang_reflect_Method::signature_offset; | |
| 2612 int java_lang_reflect_Method::annotations_offset; | |
| 2613 int java_lang_reflect_Method::parameter_annotations_offset; | |
| 2614 int java_lang_reflect_Method::annotation_default_offset; | |
| 2615 int java_lang_reflect_Constructor::clazz_offset; | |
| 2616 int java_lang_reflect_Constructor::parameterTypes_offset; | |
| 2617 int java_lang_reflect_Constructor::exceptionTypes_offset; | |
| 2618 int java_lang_reflect_Constructor::slot_offset; | |
| 2619 int java_lang_reflect_Constructor::modifiers_offset; | |
| 2620 int java_lang_reflect_Constructor::signature_offset; | |
| 2621 int java_lang_reflect_Constructor::annotations_offset; | |
| 2622 int java_lang_reflect_Constructor::parameter_annotations_offset; | |
| 2623 int java_lang_reflect_Field::clazz_offset; | |
| 2624 int java_lang_reflect_Field::name_offset; | |
| 2625 int java_lang_reflect_Field::type_offset; | |
| 2626 int java_lang_reflect_Field::slot_offset; | |
| 2627 int java_lang_reflect_Field::modifiers_offset; | |
| 2628 int java_lang_reflect_Field::signature_offset; | |
| 2629 int java_lang_reflect_Field::annotations_offset; | |
| 2630 int java_lang_boxing_object::value_offset; | |
|
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2631 int java_lang_boxing_object::long_value_offset; |
| 0 | 2632 int java_lang_ref_Reference::referent_offset; |
| 2633 int java_lang_ref_Reference::queue_offset; | |
| 2634 int java_lang_ref_Reference::next_offset; | |
| 2635 int java_lang_ref_Reference::discovered_offset; | |
| 2636 int java_lang_ref_Reference::static_lock_offset; | |
| 2637 int java_lang_ref_Reference::static_pending_offset; | |
| 2638 int java_lang_ref_Reference::number_of_fake_oop_fields; | |
| 2639 int java_lang_ref_SoftReference::timestamp_offset; | |
| 2640 int java_lang_ref_SoftReference::static_clock_offset; | |
| 2641 int java_lang_ClassLoader::parent_offset; | |
| 2642 int java_lang_System::offset_of_static_fields; | |
| 2643 int java_lang_System::static_in_offset; | |
| 2644 int java_lang_System::static_out_offset; | |
| 2645 int java_lang_System::static_err_offset; | |
| 2646 int java_lang_StackTraceElement::declaringClass_offset; | |
| 2647 int java_lang_StackTraceElement::methodName_offset; | |
| 2648 int java_lang_StackTraceElement::fileName_offset; | |
| 2649 int java_lang_StackTraceElement::lineNumber_offset; | |
| 2650 int java_lang_AssertionStatusDirectives::classes_offset; | |
| 2651 int java_lang_AssertionStatusDirectives::classEnabled_offset; | |
| 2652 int java_lang_AssertionStatusDirectives::packages_offset; | |
| 2653 int java_lang_AssertionStatusDirectives::packageEnabled_offset; | |
| 2654 int java_lang_AssertionStatusDirectives::deflt_offset; | |
| 2655 int java_nio_Buffer::_limit_offset; | |
| 2656 int sun_misc_AtomicLongCSImpl::_value_offset; | |
| 2657 int java_util_concurrent_locks_AbstractOwnableSynchronizer::_owner_offset = 0; | |
| 2658 int sun_reflect_ConstantPool::_cp_oop_offset; | |
| 2659 int sun_reflect_UnsafeStaticFieldAccessorImpl::_base_offset; | |
| 2660 | |
| 2661 | |
| 2662 // Support for java_lang_StackTraceElement | |
| 2663 | |
| 2664 void java_lang_StackTraceElement::set_fileName(oop element, oop value) { | |
| 2665 element->obj_field_put(fileName_offset, value); | |
| 2666 } | |
| 2667 | |
| 2668 void java_lang_StackTraceElement::set_declaringClass(oop element, oop value) { | |
| 2669 element->obj_field_put(declaringClass_offset, value); | |
| 2670 } | |
| 2671 | |
| 2672 void java_lang_StackTraceElement::set_methodName(oop element, oop value) { | |
| 2673 element->obj_field_put(methodName_offset, value); | |
| 2674 } | |
| 2675 | |
| 2676 void java_lang_StackTraceElement::set_lineNumber(oop element, int value) { | |
| 2677 element->int_field_put(lineNumber_offset, value); | |
| 2678 } | |
| 2679 | |
| 2680 | |
| 2681 // Support for java Assertions - java_lang_AssertionStatusDirectives. | |
| 2682 | |
| 2683 void java_lang_AssertionStatusDirectives::set_classes(oop o, oop val) { | |
| 2684 o->obj_field_put(classes_offset, val); | |
| 2685 } | |
| 2686 | |
| 2687 void java_lang_AssertionStatusDirectives::set_classEnabled(oop o, oop val) { | |
| 2688 o->obj_field_put(classEnabled_offset, val); | |
| 2689 } | |
| 2690 | |
| 2691 void java_lang_AssertionStatusDirectives::set_packages(oop o, oop val) { | |
| 2692 o->obj_field_put(packages_offset, val); | |
| 2693 } | |
| 2694 | |
| 2695 void java_lang_AssertionStatusDirectives::set_packageEnabled(oop o, oop val) { | |
| 2696 o->obj_field_put(packageEnabled_offset, val); | |
| 2697 } | |
| 2698 | |
| 2699 void java_lang_AssertionStatusDirectives::set_deflt(oop o, bool val) { | |
| 2700 o->bool_field_put(deflt_offset, val); | |
| 2701 } | |
| 2702 | |
| 2703 | |
| 2704 // Support for intrinsification of java.nio.Buffer.checkIndex | |
| 2705 int java_nio_Buffer::limit_offset() { | |
| 2706 return _limit_offset; | |
| 2707 } | |
| 2708 | |
| 2709 | |
| 2710 void java_nio_Buffer::compute_offsets() { | |
| 2711 klassOop k = SystemDictionary::java_nio_Buffer_klass(); | |
|
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2712 assert(k != NULL, "must be loaded in 1.4+"); |
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2713 compute_offset(_limit_offset, k, vmSymbols::limit_name(), vmSymbols::int_signature()); |
| 0 | 2714 } |
| 2715 | |
| 2716 // Support for intrinsification of sun.misc.AtomicLongCSImpl.attemptUpdate | |
| 2717 int sun_misc_AtomicLongCSImpl::value_offset() { | |
| 2718 assert(SystemDictionary::sun_misc_AtomicLongCSImpl_klass() != NULL, "can't call this"); | |
| 2719 return _value_offset; | |
| 2720 } | |
| 2721 | |
| 2722 | |
| 2723 void sun_misc_AtomicLongCSImpl::compute_offsets() { | |
| 2724 klassOop k = SystemDictionary::sun_misc_AtomicLongCSImpl_klass(); | |
| 2725 // If this class is not present, its value field offset won't be referenced. | |
| 2726 if (k != NULL) { | |
|
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2727 compute_offset(_value_offset, k, vmSymbols::value_name(), vmSymbols::long_signature()); |
| 0 | 2728 } |
| 2729 } | |
| 2730 | |
| 2731 void java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(TRAPS) { | |
| 2732 if (_owner_offset != 0) return; | |
| 2733 | |
| 2734 assert(JDK_Version::is_gte_jdk16x_version(), "Must be JDK 1.6 or later"); | |
| 2735 SystemDictionary::load_abstract_ownable_synchronizer_klass(CHECK); | |
| 2736 klassOop k = SystemDictionary::abstract_ownable_synchronizer_klass(); | |
|
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2737 compute_offset(_owner_offset, k, |
| 0 | 2738 vmSymbols::exclusive_owner_thread_name(), vmSymbols::thread_signature()); |
| 2739 } | |
| 2740 | |
| 2741 oop java_util_concurrent_locks_AbstractOwnableSynchronizer::get_owner_threadObj(oop obj) { | |
| 2742 assert(_owner_offset != 0, "Must be initialized"); | |
| 2743 return obj->obj_field(_owner_offset); | |
| 2744 } | |
| 2745 | |
| 2746 // Compute hard-coded offsets | |
| 2747 // Invoked before SystemDictionary::initialize, so pre-loaded classes | |
| 2748 // are not available to determine the offset_of_static_fields. | |
| 2749 void JavaClasses::compute_hard_coded_offsets() { | |
|
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2750 const int x = heapOopSize; |
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2751 const int header = instanceOopDesc::base_offset_in_bytes(); |
| 0 | 2752 |
| 2753 // Do the String Class | |
| 2754 java_lang_String::value_offset = java_lang_String::hc_value_offset * x + header; | |
| 2755 java_lang_String::offset_offset = java_lang_String::hc_offset_offset * x + header; | |
| 2756 java_lang_String::count_offset = java_lang_String::offset_offset + sizeof (jint); | |
| 2757 java_lang_String::hash_offset = java_lang_String::count_offset + sizeof (jint); | |
| 2758 | |
| 2759 // Do the Class Class | |
| 2760 java_lang_Class::klass_offset = java_lang_Class::hc_klass_offset * x + header; | |
| 2761 java_lang_Class::array_klass_offset = java_lang_Class::hc_array_klass_offset * x + header; | |
| 2762 java_lang_Class::resolved_constructor_offset = java_lang_Class::hc_resolved_constructor_offset * x + header; | |
| 2763 | |
| 2764 // This is NOT an offset | |
| 2765 java_lang_Class::number_of_fake_oop_fields = java_lang_Class::hc_number_of_fake_oop_fields; | |
| 2766 | |
| 2767 // Throwable Class | |
| 2768 java_lang_Throwable::backtrace_offset = java_lang_Throwable::hc_backtrace_offset * x + header; | |
| 2769 java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header; | |
| 2770 java_lang_Throwable::cause_offset = java_lang_Throwable::hc_cause_offset * x + header; | |
| 2771 java_lang_Throwable::stackTrace_offset = java_lang_Throwable::hc_stackTrace_offset * x + header; | |
| 2772 | |
| 2773 // java_lang_boxing_object | |
|
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2774 java_lang_boxing_object::value_offset = java_lang_boxing_object::hc_value_offset + header; |
|
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2775 java_lang_boxing_object::long_value_offset = align_size_up((java_lang_boxing_object::hc_value_offset + header), BytesPerLong); |
| 0 | 2776 |
| 2777 // java_lang_ref_Reference: | |
| 2778 java_lang_ref_Reference::referent_offset = java_lang_ref_Reference::hc_referent_offset * x + header; | |
| 2779 java_lang_ref_Reference::queue_offset = java_lang_ref_Reference::hc_queue_offset * x + header; | |
| 2780 java_lang_ref_Reference::next_offset = java_lang_ref_Reference::hc_next_offset * x + header; | |
| 2781 java_lang_ref_Reference::discovered_offset = java_lang_ref_Reference::hc_discovered_offset * x + header; | |
| 2782 java_lang_ref_Reference::static_lock_offset = java_lang_ref_Reference::hc_static_lock_offset * x; | |
| 2783 java_lang_ref_Reference::static_pending_offset = java_lang_ref_Reference::hc_static_pending_offset * x; | |
| 2784 // Artificial fields for java_lang_ref_Reference | |
| 2785 // The first field is for the discovered field added in 1.4 | |
| 2786 java_lang_ref_Reference::number_of_fake_oop_fields = 1; | |
| 2787 | |
| 2788 // java_lang_ref_SoftReference Class | |
|
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2789 java_lang_ref_SoftReference::timestamp_offset = align_size_up((java_lang_ref_SoftReference::hc_timestamp_offset * x + header), BytesPerLong); |
| 0 | 2790 // Don't multiply static fields because they are always in wordSize units |
| 2791 java_lang_ref_SoftReference::static_clock_offset = java_lang_ref_SoftReference::hc_static_clock_offset * x; | |
| 2792 | |
| 2793 // java_lang_ClassLoader | |
| 2794 java_lang_ClassLoader::parent_offset = java_lang_ClassLoader::hc_parent_offset * x + header; | |
| 2795 | |
| 2796 // java_lang_System | |
| 2797 java_lang_System::static_in_offset = java_lang_System::hc_static_in_offset * x; | |
| 2798 java_lang_System::static_out_offset = java_lang_System::hc_static_out_offset * x; | |
| 2799 java_lang_System::static_err_offset = java_lang_System::hc_static_err_offset * x; | |
| 2800 | |
| 2801 // java_lang_StackTraceElement | |
| 2802 java_lang_StackTraceElement::declaringClass_offset = java_lang_StackTraceElement::hc_declaringClass_offset * x + header; | |
| 2803 java_lang_StackTraceElement::methodName_offset = java_lang_StackTraceElement::hc_methodName_offset * x + header; | |
| 2804 java_lang_StackTraceElement::fileName_offset = java_lang_StackTraceElement::hc_fileName_offset * x + header; | |
| 2805 java_lang_StackTraceElement::lineNumber_offset = java_lang_StackTraceElement::hc_lineNumber_offset * x + header; | |
| 2806 java_lang_AssertionStatusDirectives::classes_offset = java_lang_AssertionStatusDirectives::hc_classes_offset * x + header; | |
| 2807 java_lang_AssertionStatusDirectives::classEnabled_offset = java_lang_AssertionStatusDirectives::hc_classEnabled_offset * x + header; | |
| 2808 java_lang_AssertionStatusDirectives::packages_offset = java_lang_AssertionStatusDirectives::hc_packages_offset * x + header; | |
| 2809 java_lang_AssertionStatusDirectives::packageEnabled_offset = java_lang_AssertionStatusDirectives::hc_packageEnabled_offset * x + header; | |
| 2810 java_lang_AssertionStatusDirectives::deflt_offset = java_lang_AssertionStatusDirectives::hc_deflt_offset * x + header; | |
| 2811 | |
| 2812 } | |
| 2813 | |
| 2814 | |
| 2815 // Compute non-hard-coded field offsets of all the classes in this file | |
| 2816 void JavaClasses::compute_offsets() { | |
| 2817 | |
| 2818 java_lang_Class::compute_offsets(); | |
| 2819 java_lang_System::compute_offsets(); | |
| 2820 java_lang_Thread::compute_offsets(); | |
| 2821 java_lang_ThreadGroup::compute_offsets(); | |
| 710 | 2822 if (EnableMethodHandles) { |
| 2823 java_dyn_MethodHandle::compute_offsets(); | |
| 2824 sun_dyn_MemberName::compute_offsets(); | |
| 2825 sun_dyn_DirectMethodHandle::compute_offsets(); | |
| 2826 sun_dyn_BoundMethodHandle::compute_offsets(); | |
| 2827 sun_dyn_AdapterMethodHandle::compute_offsets(); | |
| 2828 java_dyn_MethodType::compute_offsets(); | |
| 2829 java_dyn_MethodTypeForm::compute_offsets(); | |
| 2830 } | |
|
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2831 if (EnableInvokeDynamic) { |
|
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2832 java_dyn_CallSite::compute_offsets(); |
|
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2833 } |
| 0 | 2834 java_security_AccessControlContext::compute_offsets(); |
| 2835 // Initialize reflection classes. The layouts of these classes | |
| 2836 // changed with the new reflection implementation in JDK 1.4, and | |
| 2837 // since the Universe doesn't know what JDK version it is until this | |
| 2838 // point we defer computation of these offsets until now. | |
| 2839 java_lang_reflect_AccessibleObject::compute_offsets(); | |
| 2840 java_lang_reflect_Method::compute_offsets(); | |
| 2841 java_lang_reflect_Constructor::compute_offsets(); | |
| 2842 java_lang_reflect_Field::compute_offsets(); | |
| 2843 if (JDK_Version::is_gte_jdk14x_version()) { | |
| 2844 java_nio_Buffer::compute_offsets(); | |
| 2845 } | |
| 2846 if (JDK_Version::is_gte_jdk15x_version()) { | |
| 2847 sun_reflect_ConstantPool::compute_offsets(); | |
| 2848 sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets(); | |
| 2849 } | |
| 2850 sun_misc_AtomicLongCSImpl::compute_offsets(); | |
| 710 | 2851 |
| 2852 // generated interpreter code wants to know about the offsets we just computed: | |
| 2853 AbstractAssembler::update_delayed_values(); | |
| 0 | 2854 } |
| 2855 | |
| 2856 #ifndef PRODUCT | |
| 2857 | |
| 2858 // These functions exist to assert the validity of hard-coded field offsets to guard | |
| 2859 // against changes in the class files | |
| 2860 | |
| 2861 bool JavaClasses::check_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
| 2862 EXCEPTION_MARK; | |
| 2863 fieldDescriptor fd; | |
| 2864 symbolHandle klass_sym = oopFactory::new_symbol_handle(klass_name, CATCH); | |
| 2865 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); | |
| 2866 instanceKlassHandle h_klass (THREAD, k); | |
| 2867 //instanceKlassHandle h_klass(klass); | |
| 2868 symbolHandle f_name = oopFactory::new_symbol_handle(field_name, CATCH); | |
| 2869 symbolHandle f_sig = oopFactory::new_symbol_handle(field_sig, CATCH); | |
| 2870 if (!h_klass->find_local_field(f_name(), f_sig(), &fd)) { | |
| 2871 tty->print_cr("Nonstatic field %s.%s not found", klass_name, field_name); | |
| 2872 return false; | |
| 2873 } | |
| 2874 if (fd.is_static()) { | |
| 2875 tty->print_cr("Nonstatic field %s.%s appears to be static", klass_name, field_name); | |
| 2876 return false; | |
| 2877 } | |
| 2878 if (fd.offset() == hardcoded_offset ) { | |
| 2879 return true; | |
| 2880 } else { | |
| 2881 tty->print_cr("Offset of nonstatic field %s.%s is hardcoded as %d but should really be %d.", | |
| 2882 klass_name, field_name, hardcoded_offset, fd.offset()); | |
| 2883 return false; | |
| 2884 } | |
| 2885 } | |
| 2886 | |
| 2887 | |
| 2888 bool JavaClasses::check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
| 2889 EXCEPTION_MARK; | |
| 2890 fieldDescriptor fd; | |
| 2891 symbolHandle klass_sym = oopFactory::new_symbol_handle(klass_name, CATCH); | |
| 2892 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); | |
| 2893 instanceKlassHandle h_klass (THREAD, k); | |
| 2894 symbolHandle f_name = oopFactory::new_symbol_handle(field_name, CATCH); | |
| 2895 symbolHandle f_sig = oopFactory::new_symbol_handle(field_sig, CATCH); | |
| 2896 if (!h_klass->find_local_field(f_name(), f_sig(), &fd)) { | |
| 2897 tty->print_cr("Static field %s.%s not found", klass_name, field_name); | |
| 2898 return false; | |
| 2899 } | |
| 2900 if (!fd.is_static()) { | |
| 2901 tty->print_cr("Static field %s.%s appears to be nonstatic", klass_name, field_name); | |
| 2902 return false; | |
| 2903 } | |
| 2904 if (fd.offset() == hardcoded_offset + h_klass->offset_of_static_fields()) { | |
| 2905 return true; | |
| 2906 } else { | |
| 2907 tty->print_cr("Offset of static field %s.%s is hardcoded as %d but should really be %d.", klass_name, field_name, hardcoded_offset, fd.offset() - h_klass->offset_of_static_fields()); | |
| 2908 return false; | |
| 2909 } | |
| 2910 } | |
| 2911 | |
| 2912 | |
|
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2913 bool JavaClasses::check_constant(const char *klass_name, int hardcoded_constant, const char *field_name, const char* field_sig) { |
|
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2914 EXCEPTION_MARK; |
|
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2915 fieldDescriptor fd; |
|
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2916 symbolHandle klass_sym = oopFactory::new_symbol_handle(klass_name, CATCH); |
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2917 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
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2918 instanceKlassHandle h_klass (THREAD, k); |
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2919 symbolHandle f_name = oopFactory::new_symbol_handle(field_name, CATCH); |
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2920 symbolHandle f_sig = oopFactory::new_symbol_handle(field_sig, CATCH); |
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2921 if (!h_klass->find_local_field(f_name(), f_sig(), &fd)) { |
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2922 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
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2923 return false; |
|
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2924 } |
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2925 if (!fd.is_static() || !fd.has_initial_value()) { |
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2926 tty->print_cr("Static field %s.%s appears to be non-constant", klass_name, field_name); |
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2927 return false; |
|
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|
2928 } |
|
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2929 if (!fd.initial_value_tag().is_int()) { |
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2930 tty->print_cr("Static field %s.%s is not an int", klass_name, field_name); |
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2931 return false; |
|
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2932 } |
|
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2933 jint field_value = fd.int_initial_value(); |
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2934 if (field_value == hardcoded_constant) { |
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2935 return true; |
|
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2936 } else { |
|
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2937 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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2938 return false; |
|
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|
2939 } |
|
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2940 } |
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2941 |
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2942 |
| 0 | 2943 // Check the hard-coded field offsets of all the classes in this file |
| 2944 | |
| 2945 void JavaClasses::check_offsets() { | |
| 2946 bool valid = true; | |
| 2947 | |
| 2948 #define CHECK_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ | |
| 2949 valid &= check_offset(klass_name, cpp_klass_name :: field_name ## _offset, #field_name, field_sig) | |
| 2950 | |
|
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2951 #define CHECK_LONG_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
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2952 valid &= check_offset(klass_name, cpp_klass_name :: long_ ## field_name ## _offset, #field_name, field_sig) |
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2953 |
| 0 | 2954 #define CHECK_STATIC_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
| 2955 valid &= check_static_offset(klass_name, cpp_klass_name :: static_ ## field_name ## _offset, #field_name, field_sig) | |
| 2956 | |
|
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2957 #define CHECK_CONSTANT(klass_name, cpp_klass_name, field_name, field_sig) \ |
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2958 valid &= check_constant(klass_name, cpp_klass_name :: field_name, #field_name, field_sig) |
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2959 |
| 0 | 2960 // java.lang.String |
| 2961 | |
| 2962 CHECK_OFFSET("java/lang/String", java_lang_String, value, "[C"); | |
| 2963 CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I"); | |
| 2964 CHECK_OFFSET("java/lang/String", java_lang_String, count, "I"); | |
| 2965 CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I"); | |
| 2966 | |
| 2967 // java.lang.Class | |
| 2968 | |
| 2969 // Fake fields | |
| 2970 // CHECK_OFFSET("java/lang/Class", java_lang_Class, klass); // %%% this needs to be checked | |
| 2971 // CHECK_OFFSET("java/lang/Class", java_lang_Class, array_klass); // %%% this needs to be checked | |
| 2972 // CHECK_OFFSET("java/lang/Class", java_lang_Class, resolved_constructor); // %%% this needs to be checked | |
| 2973 | |
| 2974 // java.lang.Throwable | |
| 2975 | |
| 2976 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, backtrace, "Ljava/lang/Object;"); | |
| 2977 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, detailMessage, "Ljava/lang/String;"); | |
| 2978 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, cause, "Ljava/lang/Throwable;"); | |
| 2979 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, stackTrace, "[Ljava/lang/StackTraceElement;"); | |
| 2980 | |
| 2981 // Boxed primitive objects (java_lang_boxing_object) | |
| 2982 | |
| 2983 CHECK_OFFSET("java/lang/Boolean", java_lang_boxing_object, value, "Z"); | |
| 2984 CHECK_OFFSET("java/lang/Character", java_lang_boxing_object, value, "C"); | |
| 2985 CHECK_OFFSET("java/lang/Float", java_lang_boxing_object, value, "F"); | |
|
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2986 CHECK_LONG_OFFSET("java/lang/Double", java_lang_boxing_object, value, "D"); |
| 0 | 2987 CHECK_OFFSET("java/lang/Byte", java_lang_boxing_object, value, "B"); |
| 2988 CHECK_OFFSET("java/lang/Short", java_lang_boxing_object, value, "S"); | |
| 2989 CHECK_OFFSET("java/lang/Integer", java_lang_boxing_object, value, "I"); | |
|
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2990 CHECK_LONG_OFFSET("java/lang/Long", java_lang_boxing_object, value, "J"); |
| 0 | 2991 |
| 2992 // java.lang.ClassLoader | |
| 2993 | |
| 2994 CHECK_OFFSET("java/lang/ClassLoader", java_lang_ClassLoader, parent, "Ljava/lang/ClassLoader;"); | |
| 2995 | |
| 2996 // java.lang.System | |
| 2997 | |
| 2998 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, in, "Ljava/io/InputStream;"); | |
| 2999 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, out, "Ljava/io/PrintStream;"); | |
| 3000 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, err, "Ljava/io/PrintStream;"); | |
| 3001 | |
| 3002 // java.lang.StackTraceElement | |
| 3003 | |
| 3004 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClass, "Ljava/lang/String;"); | |
| 3005 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, methodName, "Ljava/lang/String;"); | |
| 3006 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, fileName, "Ljava/lang/String;"); | |
| 3007 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, lineNumber, "I"); | |
| 3008 | |
| 3009 // java.lang.ref.Reference | |
| 3010 | |
| 3011 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, referent, "Ljava/lang/Object;"); | |
| 3012 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, queue, "Ljava/lang/ref/ReferenceQueue;"); | |
| 3013 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, next, "Ljava/lang/ref/Reference;"); | |
| 3014 // Fake field | |
| 3015 //CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, discovered, "Ljava/lang/ref/Reference;"); | |
| 3016 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, lock, "Ljava/lang/ref/Reference$Lock;"); | |
| 3017 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, pending, "Ljava/lang/ref/Reference;"); | |
| 3018 | |
| 3019 // java.lang.ref.SoftReference | |
| 3020 | |
| 3021 CHECK_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, timestamp, "J"); | |
| 3022 CHECK_STATIC_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, clock, "J"); | |
| 3023 | |
| 3024 // java.lang.AssertionStatusDirectives | |
| 3025 // | |
| 3026 // The CheckAssertionStatusDirectives boolean can be removed from here and | |
| 3027 // globals.hpp after the AssertionStatusDirectives class has been integrated | |
| 3028 // into merlin "for some time." Without it, the vm will fail with early | |
| 3029 // merlin builds. | |
| 3030 | |
| 3031 if (CheckAssertionStatusDirectives && JDK_Version::is_gte_jdk14x_version()) { | |
| 3032 const char* nm = "java/lang/AssertionStatusDirectives"; | |
| 3033 const char* sig = "[Ljava/lang/String;"; | |
| 3034 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classes, sig); | |
| 3035 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classEnabled, "[Z"); | |
| 3036 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packages, sig); | |
| 3037 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packageEnabled, "[Z"); | |
| 3038 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, deflt, "Z"); | |
| 3039 } | |
| 3040 | |
| 3041 if (!valid) vm_exit_during_initialization("Hard-coded field offset verification failed"); | |
| 3042 } | |
| 3043 | |
| 3044 #endif // PRODUCT | |
| 3045 | |
| 3046 void javaClasses_init() { | |
| 3047 JavaClasses::compute_offsets(); | |
| 3048 JavaClasses::check_offsets(); | |
| 3049 FilteredFieldsMap::initialize(); // must be done after computing offsets. | |
| 3050 } |