Mercurial > hg > truffle
annotate src/share/vm/classfile/javaClasses.cpp @ 2379:b099aaf51bf8
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Reviewed-by: never, coleenp, ysr, jwilhelm
| author | jcoomes |
|---|---|
| date | Tue, 22 Mar 2011 13:36:33 -0700 |
| parents | c7f3d0b4570f |
| children | 38fea01eb669 6a615eae2f34 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "classfile/javaClasses.hpp" | |
| 27 #include "classfile/symbolTable.hpp" | |
| 28 #include "classfile/vmSymbols.hpp" | |
| 29 #include "code/debugInfo.hpp" | |
| 30 #include "code/pcDesc.hpp" | |
| 31 #include "interpreter/interpreter.hpp" | |
| 32 #include "memory/oopFactory.hpp" | |
| 33 #include "memory/resourceArea.hpp" | |
| 34 #include "memory/universe.inline.hpp" | |
| 35 #include "oops/instanceKlass.hpp" | |
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36 #include "oops/instanceMirrorKlass.hpp" |
| 1972 | 37 #include "oops/klass.hpp" |
| 38 #include "oops/klassOop.hpp" | |
| 39 #include "oops/methodOop.hpp" | |
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40 #include "oops/symbol.hpp" |
| 1972 | 41 #include "oops/typeArrayOop.hpp" |
| 42 #include "runtime/fieldDescriptor.hpp" | |
| 43 #include "runtime/handles.inline.hpp" | |
| 44 #include "runtime/interfaceSupport.hpp" | |
| 45 #include "runtime/java.hpp" | |
| 46 #include "runtime/javaCalls.hpp" | |
| 47 #include "runtime/safepoint.hpp" | |
| 48 #include "runtime/vframe.hpp" | |
| 49 #include "utilities/preserveException.hpp" | |
| 50 #ifdef TARGET_OS_FAMILY_linux | |
| 51 # include "thread_linux.inline.hpp" | |
| 52 #endif | |
| 53 #ifdef TARGET_OS_FAMILY_solaris | |
| 54 # include "thread_solaris.inline.hpp" | |
| 55 #endif | |
| 56 #ifdef TARGET_OS_FAMILY_windows | |
| 57 # include "thread_windows.inline.hpp" | |
| 58 #endif | |
| 0 | 59 |
| 710 | 60 static bool find_field(instanceKlass* ik, |
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61 Symbol* name_symbol, Symbol* signature_symbol, |
| 710 | 62 fieldDescriptor* fd, |
| 63 bool allow_super = false) { | |
| 64 if (allow_super) | |
| 65 return ik->find_field(name_symbol, signature_symbol, fd) != NULL; | |
| 66 else | |
| 67 return ik->find_local_field(name_symbol, signature_symbol, fd); | |
| 68 } | |
| 69 | |
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70 static bool find_hacked_field(instanceKlass* ik, |
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71 Symbol* name_symbol, Symbol* signature_symbol, |
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72 fieldDescriptor* fd, |
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73 bool allow_super = false) { |
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74 bool found = find_field(ik, name_symbol, signature_symbol, fd, allow_super); |
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75 if (!found && AllowTransitionalJSR292) { |
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76 Symbol* backup_sig = SystemDictionary::find_backup_signature(signature_symbol); |
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77 if (backup_sig != NULL) { |
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78 found = find_field(ik, name_symbol, backup_sig, fd, allow_super); |
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79 if (TraceMethodHandles) { |
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80 ResourceMark rm; |
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81 tty->print_cr("MethodHandles: %s.%s: backup for %s => %s%s", |
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82 ik->name()->as_C_string(), name_symbol->as_C_string(), |
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83 signature_symbol->as_C_string(), backup_sig->as_C_string(), |
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84 (found ? "" : " (NOT FOUND)")); |
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85 } |
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86 } |
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87 } |
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88 return found; |
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89 } |
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90 #define find_field find_hacked_field /* remove after AllowTransitionalJSR292 */ |
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91 |
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92 // Helpful routine for computing field offsets at run time rather than hardcoding them |
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93 static void |
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94 compute_offset(int &dest_offset, |
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95 klassOop klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
| 710 | 96 bool allow_super = false) { |
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97 fieldDescriptor fd; |
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98 instanceKlass* ik = instanceKlass::cast(klass_oop); |
| 710 | 99 if (!find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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100 ResourceMark rm; |
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101 tty->print_cr("Invalid layout of %s at %s", ik->external_name(), name_symbol->as_C_string()); |
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102 fatal("Invalid layout of preloaded class"); |
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103 } |
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104 dest_offset = fd.offset(); |
| 0 | 105 } |
| 106 | |
| 107 // Same as above but for "optional" offsets that might not be present in certain JDK versions | |
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108 static void |
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109 compute_optional_offset(int& dest_offset, |
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110 klassOop klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
| 710 | 111 bool allow_super = false) { |
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112 fieldDescriptor fd; |
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113 instanceKlass* ik = instanceKlass::cast(klass_oop); |
| 710 | 114 if (find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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115 dest_offset = fd.offset(); |
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116 } |
| 0 | 117 } |
| 118 | |
| 710 | 119 |
| 0 | 120 Handle java_lang_String::basic_create(int length, bool tenured, TRAPS) { |
| 121 // Create the String object first, so there's a chance that the String | |
| 122 // and the char array it points to end up in the same cache line. | |
| 123 oop obj; | |
| 124 if (tenured) { | |
| 1142 | 125 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_permanent_instance(CHECK_NH); |
| 0 | 126 } else { |
| 1142 | 127 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_instance(CHECK_NH); |
| 0 | 128 } |
| 129 | |
| 130 // Create the char array. The String object must be handlized here | |
| 131 // because GC can happen as a result of the allocation attempt. | |
| 132 Handle h_obj(THREAD, obj); | |
| 133 typeArrayOop buffer; | |
| 134 if (tenured) { | |
| 135 buffer = oopFactory::new_permanent_charArray(length, CHECK_NH); | |
| 136 } else { | |
| 137 buffer = oopFactory::new_charArray(length, CHECK_NH); | |
| 138 } | |
| 139 | |
| 140 // Point the String at the char array | |
| 141 obj = h_obj(); | |
| 142 set_value(obj, buffer); | |
| 143 // No need to zero the offset, allocation zero'ed the entire String object | |
| 144 assert(offset(obj) == 0, "initial String offset should be zero"); | |
| 145 //set_offset(obj, 0); | |
| 146 set_count(obj, length); | |
| 147 | |
| 148 return h_obj; | |
| 149 } | |
| 150 | |
| 151 Handle java_lang_String::basic_create_from_unicode(jchar* unicode, int length, bool tenured, TRAPS) { | |
| 152 Handle h_obj = basic_create(length, tenured, CHECK_NH); | |
| 153 typeArrayOop buffer = value(h_obj()); | |
| 154 for (int index = 0; index < length; index++) { | |
| 155 buffer->char_at_put(index, unicode[index]); | |
| 156 } | |
| 157 return h_obj; | |
| 158 } | |
| 159 | |
| 160 Handle java_lang_String::create_from_unicode(jchar* unicode, int length, TRAPS) { | |
| 161 return basic_create_from_unicode(unicode, length, false, CHECK_NH); | |
| 162 } | |
| 163 | |
| 164 Handle java_lang_String::create_tenured_from_unicode(jchar* unicode, int length, TRAPS) { | |
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165 return basic_create_from_unicode(unicode, length, JavaObjectsInPerm, CHECK_NH); |
| 0 | 166 } |
| 167 | |
| 168 oop java_lang_String::create_oop_from_unicode(jchar* unicode, int length, TRAPS) { | |
| 169 Handle h_obj = basic_create_from_unicode(unicode, length, false, CHECK_0); | |
| 170 return h_obj(); | |
| 171 } | |
| 172 | |
| 173 Handle java_lang_String::create_from_str(const char* utf8_str, TRAPS) { | |
| 174 if (utf8_str == NULL) { | |
| 175 return Handle(); | |
| 176 } | |
| 177 int length = UTF8::unicode_length(utf8_str); | |
| 178 Handle h_obj = basic_create(length, false, CHECK_NH); | |
| 179 if (length > 0) { | |
| 180 UTF8::convert_to_unicode(utf8_str, value(h_obj())->char_at_addr(0), length); | |
| 181 } | |
| 182 return h_obj; | |
| 183 } | |
| 184 | |
| 185 oop java_lang_String::create_oop_from_str(const char* utf8_str, TRAPS) { | |
| 186 Handle h_obj = create_from_str(utf8_str, CHECK_0); | |
| 187 return h_obj(); | |
| 188 } | |
| 189 | |
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190 Handle java_lang_String::create_from_symbol(Symbol* symbol, TRAPS) { |
| 0 | 191 int length = UTF8::unicode_length((char*)symbol->bytes(), symbol->utf8_length()); |
| 192 Handle h_obj = basic_create(length, false, CHECK_NH); | |
| 193 if (length > 0) { | |
| 194 UTF8::convert_to_unicode((char*)symbol->bytes(), value(h_obj())->char_at_addr(0), length); | |
| 195 } | |
| 196 return h_obj; | |
| 197 } | |
| 198 | |
| 199 // Converts a C string to a Java String based on current encoding | |
| 200 Handle java_lang_String::create_from_platform_dependent_str(const char* str, TRAPS) { | |
| 201 assert(str != NULL, "bad arguments"); | |
| 202 | |
| 203 typedef jstring (*to_java_string_fn_t)(JNIEnv*, const char *); | |
| 204 static to_java_string_fn_t _to_java_string_fn = NULL; | |
| 205 | |
| 206 if (_to_java_string_fn == NULL) { | |
| 207 void *lib_handle = os::native_java_library(); | |
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208 _to_java_string_fn = CAST_TO_FN_PTR(to_java_string_fn_t, os::dll_lookup(lib_handle, "NewStringPlatform")); |
| 0 | 209 if (_to_java_string_fn == NULL) { |
| 210 fatal("NewStringPlatform missing"); | |
| 211 } | |
| 212 } | |
| 213 | |
| 214 jstring js = NULL; | |
| 215 { JavaThread* thread = (JavaThread*)THREAD; | |
| 216 assert(thread->is_Java_thread(), "must be java thread"); | |
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217 HandleMark hm(thread); |
| 0 | 218 ThreadToNativeFromVM ttn(thread); |
| 219 js = (_to_java_string_fn)(thread->jni_environment(), str); | |
| 220 } | |
| 221 return Handle(THREAD, JNIHandles::resolve(js)); | |
| 222 } | |
| 223 | |
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224 // Converts a Java String to a native C string that can be used for |
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225 // native OS calls. |
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226 char* java_lang_String::as_platform_dependent_str(Handle java_string, TRAPS) { |
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227 |
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228 typedef char* (*to_platform_string_fn_t)(JNIEnv*, jstring, bool*); |
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229 static to_platform_string_fn_t _to_platform_string_fn = NULL; |
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230 |
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231 if (_to_platform_string_fn == NULL) { |
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232 void *lib_handle = os::native_java_library(); |
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233 _to_platform_string_fn = CAST_TO_FN_PTR(to_platform_string_fn_t, os::dll_lookup(lib_handle, "GetStringPlatformChars")); |
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234 if (_to_platform_string_fn == NULL) { |
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235 fatal("GetStringPlatformChars missing"); |
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236 } |
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237 } |
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238 |
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239 char *native_platform_string; |
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240 { JavaThread* thread = (JavaThread*)THREAD; |
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241 assert(thread->is_Java_thread(), "must be java thread"); |
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242 JNIEnv *env = thread->jni_environment(); |
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243 jstring js = (jstring) JNIHandles::make_local(env, java_string()); |
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244 bool is_copy; |
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245 HandleMark hm(thread); |
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246 ThreadToNativeFromVM ttn(thread); |
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247 native_platform_string = (_to_platform_string_fn)(env, js, &is_copy); |
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248 assert(is_copy == JNI_TRUE, "is_copy value changed"); |
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249 JNIHandles::destroy_local(js); |
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250 } |
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251 return native_platform_string; |
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252 } |
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253 |
| 0 | 254 Handle java_lang_String::char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS) { |
| 255 oop obj = java_string(); | |
| 256 // Typical usage is to convert all '/' to '.' in string. | |
| 257 typeArrayOop value = java_lang_String::value(obj); | |
| 258 int offset = java_lang_String::offset(obj); | |
| 259 int length = java_lang_String::length(obj); | |
| 260 | |
| 261 // First check if any from_char exist | |
| 262 int index; // Declared outside, used later | |
| 263 for (index = 0; index < length; index++) { | |
| 264 if (value->char_at(index + offset) == from_char) { | |
| 265 break; | |
| 266 } | |
| 267 } | |
| 268 if (index == length) { | |
| 269 // No from_char, so do not copy. | |
| 270 return java_string; | |
| 271 } | |
| 272 | |
| 273 // Create new UNICODE buffer. Must handlize value because GC | |
| 274 // may happen during String and char array creation. | |
| 275 typeArrayHandle h_value(THREAD, value); | |
| 276 Handle string = basic_create(length, false, CHECK_NH); | |
| 277 | |
| 278 typeArrayOop from_buffer = h_value(); | |
| 279 typeArrayOop to_buffer = java_lang_String::value(string()); | |
| 280 | |
| 281 // Copy contents | |
| 282 for (index = 0; index < length; index++) { | |
| 283 jchar c = from_buffer->char_at(index + offset); | |
| 284 if (c == from_char) { | |
| 285 c = to_char; | |
| 286 } | |
| 287 to_buffer->char_at_put(index, c); | |
| 288 } | |
| 289 return string; | |
| 290 } | |
| 291 | |
| 292 jchar* java_lang_String::as_unicode_string(oop java_string, int& length) { | |
| 293 typeArrayOop value = java_lang_String::value(java_string); | |
| 294 int offset = java_lang_String::offset(java_string); | |
| 295 length = java_lang_String::length(java_string); | |
| 296 | |
| 297 jchar* result = NEW_RESOURCE_ARRAY(jchar, length); | |
| 298 for (int index = 0; index < length; index++) { | |
| 299 result[index] = value->char_at(index + offset); | |
| 300 } | |
| 301 return result; | |
| 302 } | |
| 303 | |
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304 Symbol* java_lang_String::as_symbol(Handle java_string, TRAPS) { |
| 0 | 305 oop obj = java_string(); |
| 306 typeArrayOop value = java_lang_String::value(obj); | |
| 307 int offset = java_lang_String::offset(obj); | |
| 308 int length = java_lang_String::length(obj); | |
|
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309 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
|
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310 Symbol* sym = SymbolTable::lookup_unicode(base, length, THREAD); |
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311 return sym; |
| 0 | 312 } |
| 313 | |
|
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314 Symbol* java_lang_String::as_symbol_or_null(oop java_string) { |
|
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315 typeArrayOop value = java_lang_String::value(java_string); |
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316 int offset = java_lang_String::offset(java_string); |
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317 int length = java_lang_String::length(java_string); |
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318 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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319 return SymbolTable::probe_unicode(base, length); |
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320 } |
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321 |
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322 |
| 0 | 323 int java_lang_String::utf8_length(oop java_string) { |
| 324 typeArrayOop value = java_lang_String::value(java_string); | |
| 325 int offset = java_lang_String::offset(java_string); | |
| 326 int length = java_lang_String::length(java_string); | |
| 327 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
| 328 return UNICODE::utf8_length(position, length); | |
| 329 } | |
| 330 | |
| 331 char* java_lang_String::as_utf8_string(oop java_string) { | |
| 332 typeArrayOop value = java_lang_String::value(java_string); | |
| 333 int offset = java_lang_String::offset(java_string); | |
| 334 int length = java_lang_String::length(java_string); | |
| 335 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
| 336 return UNICODE::as_utf8(position, length); | |
| 337 } | |
| 338 | |
|
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6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
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339 char* java_lang_String::as_utf8_string(oop java_string, char* buf, int buflen) { |
|
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340 typeArrayOop value = java_lang_String::value(java_string); |
|
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341 int offset = java_lang_String::offset(java_string); |
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342 int length = java_lang_String::length(java_string); |
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343 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); |
|
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344 return UNICODE::as_utf8(position, length, buf, buflen); |
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345 } |
|
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346 |
| 0 | 347 char* java_lang_String::as_utf8_string(oop java_string, int start, int len) { |
| 348 typeArrayOop value = java_lang_String::value(java_string); | |
| 349 int offset = java_lang_String::offset(java_string); | |
| 350 int length = java_lang_String::length(java_string); | |
| 351 assert(start + len <= length, "just checking"); | |
| 352 jchar* position = value->char_at_addr(offset + start); | |
| 353 return UNICODE::as_utf8(position, len); | |
| 354 } | |
| 355 | |
| 356 bool java_lang_String::equals(oop java_string, jchar* chars, int len) { | |
| 357 assert(SharedSkipVerify || | |
| 1142 | 358 java_string->klass() == SystemDictionary::String_klass(), |
| 0 | 359 "must be java_string"); |
| 360 typeArrayOop value = java_lang_String::value(java_string); | |
| 361 int offset = java_lang_String::offset(java_string); | |
| 362 int length = java_lang_String::length(java_string); | |
| 363 if (length != len) { | |
| 364 return false; | |
| 365 } | |
| 366 for (int i = 0; i < len; i++) { | |
| 367 if (value->char_at(i + offset) != chars[i]) { | |
| 368 return false; | |
| 369 } | |
| 370 } | |
| 371 return true; | |
| 372 } | |
| 373 | |
| 374 void java_lang_String::print(Handle java_string, outputStream* st) { | |
| 375 oop obj = java_string(); | |
| 1142 | 376 assert(obj->klass() == SystemDictionary::String_klass(), "must be java_string"); |
| 0 | 377 typeArrayOop value = java_lang_String::value(obj); |
| 378 int offset = java_lang_String::offset(obj); | |
| 379 int length = java_lang_String::length(obj); | |
| 380 | |
| 381 int end = MIN2(length, 100); | |
| 382 if (value == NULL) { | |
| 383 // This can happen if, e.g., printing a String | |
| 384 // object before its initializer has been called | |
| 385 st->print_cr("NULL"); | |
| 386 } else { | |
| 387 st->print("\""); | |
| 388 for (int index = 0; index < length; index++) { | |
| 389 st->print("%c", value->char_at(index + offset)); | |
| 390 } | |
| 391 st->print("\""); | |
| 392 } | |
| 393 } | |
| 394 | |
|
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395 static void initialize_static_field(fieldDescriptor* fd, TRAPS) { |
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396 Handle mirror (THREAD, fd->field_holder()->java_mirror()); |
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397 assert(mirror.not_null() && fd->is_static(), "just checking"); |
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398 if (fd->has_initial_value()) { |
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399 BasicType t = fd->field_type(); |
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400 switch (t) { |
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401 case T_BYTE: |
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402 mirror()->byte_field_put(fd->offset(), fd->int_initial_value()); |
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403 break; |
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404 case T_BOOLEAN: |
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405 mirror()->bool_field_put(fd->offset(), fd->int_initial_value()); |
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406 break; |
|
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407 case T_CHAR: |
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408 mirror()->char_field_put(fd->offset(), fd->int_initial_value()); |
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409 break; |
|
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410 case T_SHORT: |
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411 mirror()->short_field_put(fd->offset(), fd->int_initial_value()); |
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412 break; |
|
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|
413 case T_INT: |
|
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414 mirror()->int_field_put(fd->offset(), fd->int_initial_value()); |
|
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415 break; |
|
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416 case T_FLOAT: |
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417 mirror()->float_field_put(fd->offset(), fd->float_initial_value()); |
|
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418 break; |
|
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419 case T_DOUBLE: |
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420 mirror()->double_field_put(fd->offset(), fd->double_initial_value()); |
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421 break; |
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422 case T_LONG: |
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423 mirror()->long_field_put(fd->offset(), fd->long_initial_value()); |
|
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424 break; |
|
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|
425 case T_OBJECT: |
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426 { |
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427 #ifdef ASSERT |
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428 TempNewSymbol sym = SymbolTable::new_symbol("Ljava/lang/String;", CHECK); |
|
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429 assert(fd->signature() == sym, "just checking"); |
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430 #endif |
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431 oop string = fd->string_initial_value(CHECK); |
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432 mirror()->obj_field_put(fd->offset(), string); |
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433 } |
|
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434 break; |
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|
435 default: |
|
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436 THROW_MSG(vmSymbols::java_lang_ClassFormatError(), |
|
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437 "Illegal ConstantValue attribute in class file"); |
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438 } |
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439 } |
|
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440 } |
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441 |
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442 |
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443 // During bootstrap, java.lang.Class wasn't loaded so static field |
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444 // offsets were computed without the size added it. Go back and |
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445 // update all the static field offsets to included the size. |
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446 static void fixup_static_field(fieldDescriptor* fd, TRAPS) { |
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447 if (fd->is_static()) { |
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448 int real_offset = fd->offset() + instanceMirrorKlass::offset_of_static_fields(); |
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449 typeArrayOop fields = instanceKlass::cast(fd->field_holder())->fields(); |
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450 fields->short_at_put(fd->index() + instanceKlass::low_offset, extract_low_short_from_int(real_offset)); |
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451 fields->short_at_put(fd->index() + instanceKlass::high_offset, extract_high_short_from_int(real_offset)); |
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452 } |
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453 } |
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454 |
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455 void java_lang_Class::fixup_mirror(KlassHandle k, TRAPS) { |
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456 assert(instanceMirrorKlass::offset_of_static_fields() != 0, "must have been computed already"); |
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457 |
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458 if (k->oop_is_instance()) { |
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459 // Fixup the offsets |
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460 instanceKlass::cast(k())->do_local_static_fields(&fixup_static_field, CHECK); |
|
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461 } |
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462 create_mirror(k, CHECK); |
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463 } |
| 0 | 464 |
| 465 oop java_lang_Class::create_mirror(KlassHandle k, TRAPS) { | |
| 466 assert(k->java_mirror() == NULL, "should only assign mirror once"); | |
| 467 // Use this moment of initialization to cache modifier_flags also, | |
| 468 // to support Class.getModifiers(). Instance classes recalculate | |
| 469 // the cached flags after the class file is parsed, but before the | |
| 470 // class is put into the system dictionary. | |
| 471 int computed_modifiers = k->compute_modifier_flags(CHECK_0); | |
| 472 k->set_modifier_flags(computed_modifiers); | |
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473 if (SystemDictionary::Class_klass_loaded() && (k->oop_is_instance() || k->oop_is_javaArray())) { |
| 0 | 474 // Allocate mirror (java.lang.Class instance) |
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475 Handle mirror = instanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(k, CHECK_0); |
| 0 | 476 // Setup indirections |
| 477 mirror->obj_field_put(klass_offset, k()); | |
| 478 k->set_java_mirror(mirror()); | |
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479 |
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480 instanceMirrorKlass* mk = instanceMirrorKlass::cast(mirror->klass()); |
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481 java_lang_Class::set_oop_size(mirror(), mk->instance_size(k)); |
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482 java_lang_Class::set_static_oop_field_count(mirror(), mk->compute_static_oop_field_count(mirror())); |
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483 |
| 0 | 484 // It might also have a component mirror. This mirror must already exist. |
| 485 if (k->oop_is_javaArray()) { | |
| 486 Handle comp_mirror; | |
| 487 if (k->oop_is_typeArray()) { | |
| 488 BasicType type = typeArrayKlass::cast(k->as_klassOop())->element_type(); | |
| 489 comp_mirror = Universe::java_mirror(type); | |
| 490 assert(comp_mirror.not_null(), "must have primitive mirror"); | |
| 491 } else if (k->oop_is_objArray()) { | |
| 492 klassOop element_klass = objArrayKlass::cast(k->as_klassOop())->element_klass(); | |
| 493 if (element_klass != NULL | |
| 494 && (Klass::cast(element_klass)->oop_is_instance() || | |
| 495 Klass::cast(element_klass)->oop_is_javaArray())) { | |
| 496 comp_mirror = Klass::cast(element_klass)->java_mirror(); | |
| 497 assert(comp_mirror.not_null(), "must have element mirror"); | |
| 498 } | |
| 499 // else some object array internal to the VM, like systemObjArrayKlassObj | |
| 500 } | |
| 501 if (comp_mirror.not_null()) { | |
| 502 // Two-way link between the array klass and its component mirror: | |
| 503 arrayKlass::cast(k->as_klassOop())->set_component_mirror(comp_mirror()); | |
| 504 set_array_klass(comp_mirror(), k->as_klassOop()); | |
| 505 } | |
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506 } else if (k->oop_is_instance()) { |
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507 // Initialize static fields |
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508 instanceKlass::cast(k())->do_local_static_fields(&initialize_static_field, CHECK_NULL); |
| 0 | 509 } |
| 510 return mirror(); | |
| 511 } else { | |
| 512 return NULL; | |
| 513 } | |
| 514 } | |
| 515 | |
| 516 | |
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517 |
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518 int java_lang_Class::oop_size(oop java_class) { |
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519 assert(oop_size_offset != 0, "must be set"); |
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520 return java_class->int_field(oop_size_offset); |
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521 } |
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522 void java_lang_Class::set_oop_size(oop java_class, int size) { |
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523 assert(oop_size_offset != 0, "must be set"); |
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524 java_class->int_field_put(oop_size_offset, size); |
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525 } |
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526 int java_lang_Class::static_oop_field_count(oop java_class) { |
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527 assert(static_oop_field_count_offset != 0, "must be set"); |
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528 return java_class->int_field(static_oop_field_count_offset); |
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529 } |
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530 void java_lang_Class::set_static_oop_field_count(oop java_class, int size) { |
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531 assert(static_oop_field_count_offset != 0, "must be set"); |
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532 java_class->int_field_put(static_oop_field_count_offset, size); |
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533 } |
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534 |
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535 |
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536 |
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537 |
| 0 | 538 oop java_lang_Class::create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS) { |
| 539 // This should be improved by adding a field at the Java level or by | |
| 540 // introducing a new VM klass (see comment in ClassFileParser) | |
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541 oop java_class = instanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance((oop)NULL, CHECK_0); |
| 0 | 542 if (type != T_VOID) { |
| 543 klassOop aklass = Universe::typeArrayKlassObj(type); | |
| 544 assert(aklass != NULL, "correct bootstrap"); | |
| 545 set_array_klass(java_class, aklass); | |
| 546 } | |
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547 instanceMirrorKlass* mk = instanceMirrorKlass::cast(SystemDictionary::Class_klass()); |
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548 java_lang_Class::set_oop_size(java_class, mk->instance_size(oop(NULL))); |
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549 java_lang_Class::set_static_oop_field_count(java_class, 0); |
| 0 | 550 return java_class; |
| 551 } | |
| 552 | |
| 553 | |
| 554 klassOop java_lang_Class::as_klassOop(oop java_class) { | |
| 555 //%note memory_2 | |
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556 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
| 0 | 557 klassOop k = klassOop(java_class->obj_field(klass_offset)); |
| 558 assert(k == NULL || k->is_klass(), "type check"); | |
| 559 return k; | |
| 560 } | |
| 561 | |
| 562 | |
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563 void java_lang_Class::print_signature(oop java_class, outputStream* st) { |
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564 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
|
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565 Symbol* name = NULL; |
|
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566 bool is_instance = false; |
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567 if (is_primitive(java_class)) { |
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568 name = vmSymbols::type_signature(primitive_type(java_class)); |
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569 } else { |
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570 klassOop k = as_klassOop(java_class); |
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571 is_instance = Klass::cast(k)->oop_is_instance(); |
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572 name = Klass::cast(k)->name(); |
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573 } |
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574 if (name == NULL) { |
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575 st->print("<null>"); |
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576 return; |
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577 } |
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578 if (is_instance) st->print("L"); |
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579 st->write((char*) name->base(), (int) name->utf8_length()); |
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580 if (is_instance) st->print(";"); |
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581 } |
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582 |
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583 Symbol* java_lang_Class::as_signature(oop java_class, bool intern_if_not_found, TRAPS) { |
|
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584 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
|
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585 Symbol* name; |
|
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586 if (is_primitive(java_class)) { |
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587 name = vmSymbols::type_signature(primitive_type(java_class)); |
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588 // Because this can create a new symbol, the caller has to decrement |
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589 // the refcount, so make adjustment here and below for symbols returned |
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590 // that are not created or incremented due to a successful lookup. |
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591 name->increment_refcount(); |
|
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592 } else { |
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593 klassOop k = as_klassOop(java_class); |
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594 if (!Klass::cast(k)->oop_is_instance()) { |
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595 name = Klass::cast(k)->name(); |
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596 name->increment_refcount(); |
|
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597 } else { |
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598 ResourceMark rm; |
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599 const char* sigstr = Klass::cast(k)->signature_name(); |
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600 int siglen = (int) strlen(sigstr); |
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601 if (!intern_if_not_found) { |
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602 name = SymbolTable::probe(sigstr, siglen); |
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603 } else { |
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604 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
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605 } |
|
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606 } |
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607 } |
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608 return name; |
|
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609 } |
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610 |
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611 |
| 0 | 612 klassOop java_lang_Class::array_klass(oop java_class) { |
| 613 klassOop k = klassOop(java_class->obj_field(array_klass_offset)); | |
| 614 assert(k == NULL || k->is_klass() && Klass::cast(k)->oop_is_javaArray(), "should be array klass"); | |
| 615 return k; | |
| 616 } | |
| 617 | |
| 618 | |
| 619 void java_lang_Class::set_array_klass(oop java_class, klassOop klass) { | |
| 620 assert(klass->is_klass() && Klass::cast(klass)->oop_is_javaArray(), "should be array klass"); | |
| 621 java_class->obj_field_put(array_klass_offset, klass); | |
| 622 } | |
| 623 | |
| 624 | |
| 625 methodOop java_lang_Class::resolved_constructor(oop java_class) { | |
| 626 oop constructor = java_class->obj_field(resolved_constructor_offset); | |
| 627 assert(constructor == NULL || constructor->is_method(), "should be method"); | |
| 628 return methodOop(constructor); | |
| 629 } | |
| 630 | |
| 631 | |
| 632 void java_lang_Class::set_resolved_constructor(oop java_class, methodOop constructor) { | |
| 633 assert(constructor->is_method(), "should be method"); | |
| 634 java_class->obj_field_put(resolved_constructor_offset, constructor); | |
| 635 } | |
| 636 | |
| 637 | |
| 638 bool java_lang_Class::is_primitive(oop java_class) { | |
|
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639 // should assert: |
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640 //assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
| 0 | 641 klassOop k = klassOop(java_class->obj_field(klass_offset)); |
| 642 return k == NULL; | |
| 643 } | |
| 644 | |
| 645 | |
| 646 BasicType java_lang_Class::primitive_type(oop java_class) { | |
| 647 assert(java_lang_Class::is_primitive(java_class), "just checking"); | |
| 648 klassOop ak = klassOop(java_class->obj_field(array_klass_offset)); | |
| 649 BasicType type = T_VOID; | |
| 650 if (ak != NULL) { | |
| 651 // Note: create_basic_type_mirror above initializes ak to a non-null value. | |
| 652 type = arrayKlass::cast(ak)->element_type(); | |
| 653 } else { | |
| 654 assert(java_class == Universe::void_mirror(), "only valid non-array primitive"); | |
| 655 } | |
| 656 assert(Universe::java_mirror(type) == java_class, "must be consistent"); | |
| 657 return type; | |
| 658 } | |
| 659 | |
|
665
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660 BasicType java_lang_Class::as_BasicType(oop java_class, klassOop* reference_klass) { |
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661 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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662 if (is_primitive(java_class)) { |
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663 if (reference_klass != NULL) |
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664 (*reference_klass) = NULL; |
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665 return primitive_type(java_class); |
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666 } else { |
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667 if (reference_klass != NULL) |
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668 (*reference_klass) = as_klassOop(java_class); |
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669 return T_OBJECT; |
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670 } |
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671 } |
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672 |
| 0 | 673 |
| 674 oop java_lang_Class::primitive_mirror(BasicType t) { | |
| 675 oop mirror = Universe::java_mirror(t); | |
| 1142 | 676 assert(mirror != NULL && mirror->is_a(SystemDictionary::Class_klass()), "must be a Class"); |
| 0 | 677 assert(java_lang_Class::is_primitive(mirror), "must be primitive"); |
| 678 return mirror; | |
| 679 } | |
| 680 | |
| 681 bool java_lang_Class::offsets_computed = false; | |
| 682 int java_lang_Class::classRedefinedCount_offset = -1; | |
| 514 | 683 int java_lang_Class::parallelCapable_offset = -1; |
| 0 | 684 |
| 685 void java_lang_Class::compute_offsets() { | |
| 686 assert(!offsets_computed, "offsets should be initialized only once"); | |
| 687 offsets_computed = true; | |
| 688 | |
| 1142 | 689 klassOop k = SystemDictionary::Class_klass(); |
| 0 | 690 // The classRedefinedCount field is only present starting in 1.5, |
| 691 // so don't go fatal. | |
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692 compute_optional_offset(classRedefinedCount_offset, |
| 0 | 693 k, vmSymbols::classRedefinedCount_name(), vmSymbols::int_signature()); |
| 514 | 694 |
| 695 // The field indicating parallelCapable (parallelLockMap) is only present starting in 7, | |
| 1142 | 696 klassOop k1 = SystemDictionary::ClassLoader_klass(); |
| 514 | 697 compute_optional_offset(parallelCapable_offset, |
| 698 k1, vmSymbols::parallelCapable_name(), vmSymbols::concurrenthashmap_signature()); | |
| 699 } | |
| 700 | |
| 701 // For class loader classes, parallelCapable defined | |
| 702 // based on non-null field | |
| 703 // Written to by java.lang.ClassLoader, vm only reads this field, doesn't set it | |
| 704 bool java_lang_Class::parallelCapable(oop class_loader) { | |
| 705 if (!JDK_Version::is_gte_jdk17x_version() | |
| 706 || parallelCapable_offset == -1) { | |
| 707 // Default for backward compatibility is false | |
| 708 return false; | |
| 709 } | |
| 710 return (class_loader->obj_field(parallelCapable_offset) != NULL); | |
| 0 | 711 } |
| 712 | |
| 713 int java_lang_Class::classRedefinedCount(oop the_class_mirror) { | |
| 714 if (!JDK_Version::is_gte_jdk15x_version() | |
| 715 || classRedefinedCount_offset == -1) { | |
| 716 // The classRedefinedCount field is only present starting in 1.5. | |
| 717 // If we don't have an offset for it then just return -1 as a marker. | |
| 718 return -1; | |
| 719 } | |
| 720 | |
| 721 return the_class_mirror->int_field(classRedefinedCount_offset); | |
| 722 } | |
| 723 | |
| 724 void java_lang_Class::set_classRedefinedCount(oop the_class_mirror, int value) { | |
| 725 if (!JDK_Version::is_gte_jdk15x_version() | |
| 726 || classRedefinedCount_offset == -1) { | |
| 727 // The classRedefinedCount field is only present starting in 1.5. | |
| 728 // If we don't have an offset for it then nothing to set. | |
| 729 return; | |
| 730 } | |
| 731 | |
| 732 the_class_mirror->int_field_put(classRedefinedCount_offset, value); | |
| 733 } | |
| 734 | |
| 735 | |
| 736 // Note: JDK1.1 and before had a privateInfo_offset field which was used for the | |
| 737 // platform thread structure, and a eetop offset which was used for thread | |
| 738 // local storage (and unused by the HotSpot VM). In JDK1.2 the two structures | |
| 739 // merged, so in the HotSpot VM we just use the eetop field for the thread | |
| 740 // instead of the privateInfo_offset. | |
| 741 // | |
| 742 // Note: The stackSize field is only present starting in 1.4. | |
| 743 | |
| 744 int java_lang_Thread::_name_offset = 0; | |
| 745 int java_lang_Thread::_group_offset = 0; | |
| 746 int java_lang_Thread::_contextClassLoader_offset = 0; | |
| 747 int java_lang_Thread::_inheritedAccessControlContext_offset = 0; | |
| 748 int java_lang_Thread::_priority_offset = 0; | |
| 749 int java_lang_Thread::_eetop_offset = 0; | |
| 750 int java_lang_Thread::_daemon_offset = 0; | |
| 751 int java_lang_Thread::_stillborn_offset = 0; | |
| 752 int java_lang_Thread::_stackSize_offset = 0; | |
| 753 int java_lang_Thread::_tid_offset = 0; | |
| 754 int java_lang_Thread::_thread_status_offset = 0; | |
| 755 int java_lang_Thread::_park_blocker_offset = 0; | |
| 756 int java_lang_Thread::_park_event_offset = 0 ; | |
| 757 | |
| 758 | |
| 759 void java_lang_Thread::compute_offsets() { | |
| 760 assert(_group_offset == 0, "offsets should be initialized only once"); | |
| 761 | |
| 1142 | 762 klassOop k = SystemDictionary::Thread_klass(); |
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763 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::char_array_signature()); |
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764 compute_offset(_group_offset, k, vmSymbols::group_name(), vmSymbols::threadgroup_signature()); |
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765 compute_offset(_contextClassLoader_offset, k, vmSymbols::contextClassLoader_name(), vmSymbols::classloader_signature()); |
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766 compute_offset(_inheritedAccessControlContext_offset, k, vmSymbols::inheritedAccessControlContext_name(), vmSymbols::accesscontrolcontext_signature()); |
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767 compute_offset(_priority_offset, k, vmSymbols::priority_name(), vmSymbols::int_signature()); |
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768 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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769 compute_offset(_eetop_offset, k, vmSymbols::eetop_name(), vmSymbols::long_signature()); |
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770 compute_offset(_stillborn_offset, k, vmSymbols::stillborn_name(), vmSymbols::bool_signature()); |
| 0 | 771 // The stackSize field is only present starting in 1.4, so don't go fatal. |
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772 compute_optional_offset(_stackSize_offset, k, vmSymbols::stackSize_name(), vmSymbols::long_signature()); |
| 0 | 773 // The tid and thread_status fields are only present starting in 1.5, so don't go fatal. |
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774 compute_optional_offset(_tid_offset, k, vmSymbols::thread_id_name(), vmSymbols::long_signature()); |
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775 compute_optional_offset(_thread_status_offset, k, vmSymbols::thread_status_name(), vmSymbols::int_signature()); |
| 0 | 776 // The parkBlocker field is only present starting in 1.6, so don't go fatal. |
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777 compute_optional_offset(_park_blocker_offset, k, vmSymbols::park_blocker_name(), vmSymbols::object_signature()); |
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778 compute_optional_offset(_park_event_offset, k, vmSymbols::park_event_name(), |
| 0 | 779 vmSymbols::long_signature()); |
| 780 } | |
| 781 | |
| 782 | |
| 783 JavaThread* java_lang_Thread::thread(oop java_thread) { | |
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784 return (JavaThread*)java_thread->address_field(_eetop_offset); |
| 0 | 785 } |
| 786 | |
| 787 | |
| 788 void java_lang_Thread::set_thread(oop java_thread, JavaThread* thread) { | |
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789 java_thread->address_field_put(_eetop_offset, (address)thread); |
| 0 | 790 } |
| 791 | |
| 792 | |
| 793 typeArrayOop java_lang_Thread::name(oop java_thread) { | |
| 794 oop name = java_thread->obj_field(_name_offset); | |
| 795 assert(name == NULL || (name->is_typeArray() && typeArrayKlass::cast(name->klass())->element_type() == T_CHAR), "just checking"); | |
| 796 return typeArrayOop(name); | |
| 797 } | |
| 798 | |
| 799 | |
| 800 void java_lang_Thread::set_name(oop java_thread, typeArrayOop name) { | |
| 801 assert(java_thread->obj_field(_name_offset) == NULL, "name should be NULL"); | |
| 802 java_thread->obj_field_put(_name_offset, name); | |
| 803 } | |
| 804 | |
| 805 | |
| 806 ThreadPriority java_lang_Thread::priority(oop java_thread) { | |
| 807 return (ThreadPriority)java_thread->int_field(_priority_offset); | |
| 808 } | |
| 809 | |
| 810 | |
| 811 void java_lang_Thread::set_priority(oop java_thread, ThreadPriority priority) { | |
| 812 java_thread->int_field_put(_priority_offset, priority); | |
| 813 } | |
| 814 | |
| 815 | |
| 816 oop java_lang_Thread::threadGroup(oop java_thread) { | |
| 817 return java_thread->obj_field(_group_offset); | |
| 818 } | |
| 819 | |
| 820 | |
| 821 bool java_lang_Thread::is_stillborn(oop java_thread) { | |
| 822 return java_thread->bool_field(_stillborn_offset) != 0; | |
| 823 } | |
| 824 | |
| 825 | |
| 826 // We never have reason to turn the stillborn bit off | |
| 827 void java_lang_Thread::set_stillborn(oop java_thread) { | |
| 828 java_thread->bool_field_put(_stillborn_offset, true); | |
| 829 } | |
| 830 | |
| 831 | |
| 832 bool java_lang_Thread::is_alive(oop java_thread) { | |
| 833 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
| 834 return (thr != NULL); | |
| 835 } | |
| 836 | |
| 837 | |
| 838 bool java_lang_Thread::is_daemon(oop java_thread) { | |
| 839 return java_thread->bool_field(_daemon_offset) != 0; | |
| 840 } | |
| 841 | |
| 842 | |
| 843 void java_lang_Thread::set_daemon(oop java_thread) { | |
| 844 java_thread->bool_field_put(_daemon_offset, true); | |
| 845 } | |
| 846 | |
| 847 oop java_lang_Thread::context_class_loader(oop java_thread) { | |
| 848 return java_thread->obj_field(_contextClassLoader_offset); | |
| 849 } | |
| 850 | |
| 851 oop java_lang_Thread::inherited_access_control_context(oop java_thread) { | |
| 852 return java_thread->obj_field(_inheritedAccessControlContext_offset); | |
| 853 } | |
| 854 | |
| 855 | |
| 856 jlong java_lang_Thread::stackSize(oop java_thread) { | |
| 857 // The stackSize field is only present starting in 1.4 | |
| 858 if (_stackSize_offset > 0) { | |
| 859 assert(JDK_Version::is_gte_jdk14x_version(), "sanity check"); | |
| 860 return java_thread->long_field(_stackSize_offset); | |
| 861 } else { | |
| 862 return 0; | |
| 863 } | |
| 864 } | |
| 865 | |
| 866 // Write the thread status value to threadStatus field in java.lang.Thread java class. | |
| 867 void java_lang_Thread::set_thread_status(oop java_thread, | |
| 868 java_lang_Thread::ThreadStatus status) { | |
| 869 assert(JavaThread::current()->thread_state() == _thread_in_vm, "Java Thread is not running in vm"); | |
| 870 // The threadStatus is only present starting in 1.5 | |
| 871 if (_thread_status_offset > 0) { | |
| 872 java_thread->int_field_put(_thread_status_offset, status); | |
| 873 } | |
| 874 } | |
| 875 | |
| 876 // Read thread status value from threadStatus field in java.lang.Thread java class. | |
| 877 java_lang_Thread::ThreadStatus java_lang_Thread::get_thread_status(oop java_thread) { | |
| 878 assert(Thread::current()->is_VM_thread() || | |
| 879 JavaThread::current()->thread_state() == _thread_in_vm, | |
| 880 "Java Thread is not running in vm"); | |
| 881 // The threadStatus is only present starting in 1.5 | |
| 882 if (_thread_status_offset > 0) { | |
| 883 return (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
| 884 } else { | |
| 885 // All we can easily figure out is if it is alive, but that is | |
| 886 // enough info for a valid unknown status. | |
| 887 // These aren't restricted to valid set ThreadStatus values, so | |
| 888 // use JVMTI values and cast. | |
| 889 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
| 890 if (thr == NULL) { | |
| 891 // the thread hasn't run yet or is in the process of exiting | |
| 892 return NEW; | |
| 893 } | |
| 894 return (java_lang_Thread::ThreadStatus)JVMTI_THREAD_STATE_ALIVE; | |
| 895 } | |
| 896 } | |
| 897 | |
| 898 | |
| 899 jlong java_lang_Thread::thread_id(oop java_thread) { | |
| 900 // The thread ID field is only present starting in 1.5 | |
| 901 if (_tid_offset > 0) { | |
| 902 return java_thread->long_field(_tid_offset); | |
| 903 } else { | |
| 904 return 0; | |
| 905 } | |
| 906 } | |
| 907 | |
| 908 oop java_lang_Thread::park_blocker(oop java_thread) { | |
| 242 | 909 assert(JDK_Version::current().supports_thread_park_blocker() && |
| 910 _park_blocker_offset != 0, "Must support parkBlocker field"); | |
| 0 | 911 |
| 912 if (_park_blocker_offset > 0) { | |
| 913 return java_thread->obj_field(_park_blocker_offset); | |
| 914 } | |
| 915 | |
| 916 return NULL; | |
| 917 } | |
| 918 | |
| 919 jlong java_lang_Thread::park_event(oop java_thread) { | |
| 920 if (_park_event_offset > 0) { | |
| 921 return java_thread->long_field(_park_event_offset); | |
| 922 } | |
| 923 return 0; | |
| 924 } | |
| 925 | |
| 926 bool java_lang_Thread::set_park_event(oop java_thread, jlong ptr) { | |
| 927 if (_park_event_offset > 0) { | |
| 928 java_thread->long_field_put(_park_event_offset, ptr); | |
| 929 return true; | |
| 930 } | |
| 931 return false; | |
| 932 } | |
| 933 | |
| 934 | |
| 935 const char* java_lang_Thread::thread_status_name(oop java_thread) { | |
| 936 assert(JDK_Version::is_gte_jdk15x_version() && _thread_status_offset != 0, "Must have thread status"); | |
| 937 ThreadStatus status = (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
| 938 switch (status) { | |
| 939 case NEW : return "NEW"; | |
| 940 case RUNNABLE : return "RUNNABLE"; | |
| 941 case SLEEPING : return "TIMED_WAITING (sleeping)"; | |
| 942 case IN_OBJECT_WAIT : return "WAITING (on object monitor)"; | |
| 943 case IN_OBJECT_WAIT_TIMED : return "TIMED_WAITING (on object monitor)"; | |
| 944 case PARKED : return "WAITING (parking)"; | |
| 945 case PARKED_TIMED : return "TIMED_WAITING (parking)"; | |
| 946 case BLOCKED_ON_MONITOR_ENTER : return "BLOCKED (on object monitor)"; | |
| 947 case TERMINATED : return "TERMINATED"; | |
| 948 default : return "UNKNOWN"; | |
| 949 }; | |
| 950 } | |
| 951 int java_lang_ThreadGroup::_parent_offset = 0; | |
| 952 int java_lang_ThreadGroup::_name_offset = 0; | |
| 953 int java_lang_ThreadGroup::_threads_offset = 0; | |
| 954 int java_lang_ThreadGroup::_groups_offset = 0; | |
| 955 int java_lang_ThreadGroup::_maxPriority_offset = 0; | |
| 956 int java_lang_ThreadGroup::_destroyed_offset = 0; | |
| 957 int java_lang_ThreadGroup::_daemon_offset = 0; | |
| 958 int java_lang_ThreadGroup::_vmAllowSuspension_offset = 0; | |
| 959 int java_lang_ThreadGroup::_nthreads_offset = 0; | |
| 960 int java_lang_ThreadGroup::_ngroups_offset = 0; | |
| 961 | |
| 962 oop java_lang_ThreadGroup::parent(oop java_thread_group) { | |
| 963 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 964 return java_thread_group->obj_field(_parent_offset); | |
| 965 } | |
| 966 | |
| 967 // ("name as oop" accessor is not necessary) | |
| 968 | |
| 969 typeArrayOop java_lang_ThreadGroup::name(oop java_thread_group) { | |
| 970 oop name = java_thread_group->obj_field(_name_offset); | |
| 971 // ThreadGroup.name can be null | |
| 972 return name == NULL ? (typeArrayOop)NULL : java_lang_String::value(name); | |
| 973 } | |
| 974 | |
| 975 int java_lang_ThreadGroup::nthreads(oop java_thread_group) { | |
| 976 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 977 return java_thread_group->int_field(_nthreads_offset); | |
| 978 } | |
| 979 | |
| 980 objArrayOop java_lang_ThreadGroup::threads(oop java_thread_group) { | |
| 981 oop threads = java_thread_group->obj_field(_threads_offset); | |
| 982 assert(threads != NULL, "threadgroups should have threads"); | |
| 983 assert(threads->is_objArray(), "just checking"); // Todo: Add better type checking code | |
| 984 return objArrayOop(threads); | |
| 985 } | |
| 986 | |
| 987 int java_lang_ThreadGroup::ngroups(oop java_thread_group) { | |
| 988 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 989 return java_thread_group->int_field(_ngroups_offset); | |
| 990 } | |
| 991 | |
| 992 objArrayOop java_lang_ThreadGroup::groups(oop java_thread_group) { | |
| 993 oop groups = java_thread_group->obj_field(_groups_offset); | |
| 994 assert(groups == NULL || groups->is_objArray(), "just checking"); // Todo: Add better type checking code | |
| 995 return objArrayOop(groups); | |
| 996 } | |
| 997 | |
| 998 ThreadPriority java_lang_ThreadGroup::maxPriority(oop java_thread_group) { | |
| 999 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1000 return (ThreadPriority) java_thread_group->int_field(_maxPriority_offset); | |
| 1001 } | |
| 1002 | |
| 1003 bool java_lang_ThreadGroup::is_destroyed(oop java_thread_group) { | |
| 1004 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1005 return java_thread_group->bool_field(_destroyed_offset) != 0; | |
| 1006 } | |
| 1007 | |
| 1008 bool java_lang_ThreadGroup::is_daemon(oop java_thread_group) { | |
| 1009 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1010 return java_thread_group->bool_field(_daemon_offset) != 0; | |
| 1011 } | |
| 1012 | |
| 1013 bool java_lang_ThreadGroup::is_vmAllowSuspension(oop java_thread_group) { | |
| 1014 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1015 return java_thread_group->bool_field(_vmAllowSuspension_offset) != 0; | |
| 1016 } | |
| 1017 | |
| 1018 void java_lang_ThreadGroup::compute_offsets() { | |
| 1019 assert(_parent_offset == 0, "offsets should be initialized only once"); | |
| 1020 | |
| 1142 | 1021 klassOop k = SystemDictionary::ThreadGroup_klass(); |
| 0 | 1022 |
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1023 compute_offset(_parent_offset, k, vmSymbols::parent_name(), vmSymbols::threadgroup_signature()); |
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1024 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1025 compute_offset(_threads_offset, k, vmSymbols::threads_name(), vmSymbols::thread_array_signature()); |
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1026 compute_offset(_groups_offset, k, vmSymbols::groups_name(), vmSymbols::threadgroup_array_signature()); |
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1027 compute_offset(_maxPriority_offset, k, vmSymbols::maxPriority_name(), vmSymbols::int_signature()); |
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1028 compute_offset(_destroyed_offset, k, vmSymbols::destroyed_name(), vmSymbols::bool_signature()); |
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1029 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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1030 compute_offset(_vmAllowSuspension_offset, k, vmSymbols::vmAllowSuspension_name(), vmSymbols::bool_signature()); |
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1031 compute_offset(_nthreads_offset, k, vmSymbols::nthreads_name(), vmSymbols::int_signature()); |
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1032 compute_offset(_ngroups_offset, k, vmSymbols::ngroups_name(), vmSymbols::int_signature()); |
| 0 | 1033 } |
| 1034 | |
| 1035 oop java_lang_Throwable::backtrace(oop throwable) { | |
| 1036 return throwable->obj_field_acquire(backtrace_offset); | |
| 1037 } | |
| 1038 | |
| 1039 | |
| 1040 void java_lang_Throwable::set_backtrace(oop throwable, oop value) { | |
| 1041 throwable->release_obj_field_put(backtrace_offset, value); | |
| 1042 } | |
| 1043 | |
| 1044 | |
| 1045 oop java_lang_Throwable::message(oop throwable) { | |
| 1046 return throwable->obj_field(detailMessage_offset); | |
| 1047 } | |
| 1048 | |
| 1049 | |
| 1050 oop java_lang_Throwable::message(Handle throwable) { | |
| 1051 return throwable->obj_field(detailMessage_offset); | |
| 1052 } | |
| 1053 | |
| 1054 | |
| 1055 void java_lang_Throwable::set_message(oop throwable, oop value) { | |
| 1056 throwable->obj_field_put(detailMessage_offset, value); | |
| 1057 } | |
| 1058 | |
| 1059 | |
| 1060 void java_lang_Throwable::clear_stacktrace(oop throwable) { | |
| 1061 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
| 1062 throwable->obj_field_put(stackTrace_offset, NULL); | |
| 1063 } | |
| 1064 | |
| 1065 | |
| 1066 void java_lang_Throwable::print(oop throwable, outputStream* st) { | |
| 1067 ResourceMark rm; | |
| 1068 klassOop k = throwable->klass(); | |
| 1069 assert(k != NULL, "just checking"); | |
| 1070 st->print("%s", instanceKlass::cast(k)->external_name()); | |
| 1071 oop msg = message(throwable); | |
| 1072 if (msg != NULL) { | |
| 1073 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
| 1074 } | |
| 1075 } | |
| 1076 | |
| 1077 | |
| 1078 void java_lang_Throwable::print(Handle throwable, outputStream* st) { | |
| 1079 ResourceMark rm; | |
| 1080 klassOop k = throwable->klass(); | |
| 1081 assert(k != NULL, "just checking"); | |
| 1082 st->print("%s", instanceKlass::cast(k)->external_name()); | |
| 1083 oop msg = message(throwable); | |
| 1084 if (msg != NULL) { | |
| 1085 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
| 1086 } | |
| 1087 } | |
| 1088 | |
| 1089 // Print stack trace element to resource allocated buffer | |
| 1090 char* java_lang_Throwable::print_stack_element_to_buffer(methodOop method, int bci) { | |
| 1091 // Get strings and string lengths | |
| 1092 instanceKlass* klass = instanceKlass::cast(method->method_holder()); | |
| 1093 const char* klass_name = klass->external_name(); | |
| 1094 int buf_len = (int)strlen(klass_name); | |
| 1095 char* source_file_name; | |
| 1096 if (klass->source_file_name() == NULL) { | |
| 1097 source_file_name = NULL; | |
| 1098 } else { | |
| 1099 source_file_name = klass->source_file_name()->as_C_string(); | |
| 1100 buf_len += (int)strlen(source_file_name); | |
| 1101 } | |
| 1102 char* method_name = method->name()->as_C_string(); | |
| 1103 buf_len += (int)strlen(method_name); | |
| 1104 | |
| 1105 // Allocate temporary buffer with extra space for formatting and line number | |
| 1106 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64); | |
| 1107 | |
| 1108 // Print stack trace line in buffer | |
| 1109 sprintf(buf, "\tat %s.%s", klass_name, method_name); | |
| 1110 if (method->is_native()) { | |
| 1111 strcat(buf, "(Native Method)"); | |
| 1112 } else { | |
| 1113 int line_number = method->line_number_from_bci(bci); | |
| 1114 if (source_file_name != NULL && (line_number != -1)) { | |
| 1115 // Sourcename and linenumber | |
| 1116 sprintf(buf + (int)strlen(buf), "(%s:%d)", source_file_name, line_number); | |
| 1117 } else if (source_file_name != NULL) { | |
| 1118 // Just sourcename | |
| 1119 sprintf(buf + (int)strlen(buf), "(%s)", source_file_name); | |
| 1120 } else { | |
| 1121 // Neither soucename and linenumber | |
| 1122 sprintf(buf + (int)strlen(buf), "(Unknown Source)"); | |
| 1123 } | |
| 1124 nmethod* nm = method->code(); | |
| 1125 if (WizardMode && nm != NULL) { | |
|
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1126 sprintf(buf + (int)strlen(buf), "(nmethod " PTR_FORMAT ")", (intptr_t)nm); |
| 0 | 1127 } |
| 1128 } | |
| 1129 | |
| 1130 return buf; | |
| 1131 } | |
| 1132 | |
| 1133 | |
| 1134 void java_lang_Throwable::print_stack_element(Handle stream, methodOop method, int bci) { | |
| 1135 ResourceMark rm; | |
| 1136 char* buf = print_stack_element_to_buffer(method, bci); | |
| 1137 print_to_stream(stream, buf); | |
| 1138 } | |
| 1139 | |
| 1140 void java_lang_Throwable::print_stack_element(outputStream *st, methodOop method, int bci) { | |
| 1141 ResourceMark rm; | |
| 1142 char* buf = print_stack_element_to_buffer(method, bci); | |
| 1143 st->print_cr("%s", buf); | |
| 1144 } | |
| 1145 | |
| 1146 void java_lang_Throwable::print_to_stream(Handle stream, const char* str) { | |
| 1147 if (stream.is_null()) { | |
| 1148 tty->print_cr("%s", str); | |
| 1149 } else { | |
| 1150 EXCEPTION_MARK; | |
| 1151 JavaValue result(T_VOID); | |
| 1152 Handle arg (THREAD, oopFactory::new_charArray(str, THREAD)); | |
| 1153 if (!HAS_PENDING_EXCEPTION) { | |
| 1154 JavaCalls::call_virtual(&result, | |
| 1155 stream, | |
| 1156 KlassHandle(THREAD, stream->klass()), | |
|
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1157 vmSymbols::println_name(), |
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|
1158 vmSymbols::char_array_void_signature(), |
| 0 | 1159 arg, |
| 1160 THREAD); | |
| 1161 } | |
| 1162 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
| 1163 if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION; | |
| 1164 } | |
| 1165 | |
| 1166 } | |
| 1167 | |
| 1168 | |
| 1169 const char* java_lang_Throwable::no_stack_trace_message() { | |
| 1170 return "\t<<no stack trace available>>"; | |
| 1171 } | |
| 1172 | |
| 1173 | |
| 1174 // Currently used only for exceptions occurring during startup | |
| 1175 void java_lang_Throwable::print_stack_trace(oop throwable, outputStream* st) { | |
| 1176 Thread *THREAD = Thread::current(); | |
| 1177 Handle h_throwable(THREAD, throwable); | |
| 1178 while (h_throwable.not_null()) { | |
| 1179 objArrayHandle result (THREAD, objArrayOop(backtrace(h_throwable()))); | |
| 1180 if (result.is_null()) { | |
| 1181 st->print_cr(no_stack_trace_message()); | |
| 1182 return; | |
| 1183 } | |
| 1184 | |
| 1185 while (result.not_null()) { | |
| 1186 objArrayHandle methods (THREAD, | |
| 1187 objArrayOop(result->obj_at(trace_methods_offset))); | |
| 1188 typeArrayHandle bcis (THREAD, | |
| 1189 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
| 1190 | |
| 1191 if (methods.is_null() || bcis.is_null()) { | |
| 1192 st->print_cr(no_stack_trace_message()); | |
| 1193 return; | |
| 1194 } | |
| 1195 | |
| 1196 int length = methods()->length(); | |
| 1197 for (int index = 0; index < length; index++) { | |
| 1198 methodOop method = methodOop(methods()->obj_at(index)); | |
| 1199 if (method == NULL) goto handle_cause; | |
| 1200 int bci = bcis->ushort_at(index); | |
| 1201 print_stack_element(st, method, bci); | |
| 1202 } | |
| 1203 result = objArrayHandle(THREAD, objArrayOop(result->obj_at(trace_next_offset))); | |
| 1204 } | |
| 1205 handle_cause: | |
| 1206 { | |
| 1207 EXCEPTION_MARK; | |
| 1208 JavaValue result(T_OBJECT); | |
| 1209 JavaCalls::call_virtual(&result, | |
| 1210 h_throwable, | |
| 1211 KlassHandle(THREAD, h_throwable->klass()), | |
|
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1212 vmSymbols::getCause_name(), |
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1213 vmSymbols::void_throwable_signature(), |
| 0 | 1214 THREAD); |
| 1215 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
| 1216 if (HAS_PENDING_EXCEPTION) { | |
| 1217 CLEAR_PENDING_EXCEPTION; | |
| 1218 h_throwable = Handle(); | |
| 1219 } else { | |
| 1220 h_throwable = Handle(THREAD, (oop) result.get_jobject()); | |
| 1221 if (h_throwable.not_null()) { | |
| 1222 st->print("Caused by: "); | |
| 1223 print(h_throwable, st); | |
| 1224 st->cr(); | |
| 1225 } | |
| 1226 } | |
| 1227 } | |
| 1228 } | |
| 1229 } | |
| 1230 | |
| 1231 | |
| 1232 void java_lang_Throwable::print_stack_trace(oop throwable, oop print_stream) { | |
| 1233 // Note: this is no longer used in Merlin, but we support it for compatibility. | |
| 1234 Thread *thread = Thread::current(); | |
| 1235 Handle stream(thread, print_stream); | |
| 1236 objArrayHandle result (thread, objArrayOop(backtrace(throwable))); | |
| 1237 if (result.is_null()) { | |
| 1238 print_to_stream(stream, no_stack_trace_message()); | |
| 1239 return; | |
| 1240 } | |
| 1241 | |
| 1242 while (result.not_null()) { | |
| 1243 objArrayHandle methods (thread, | |
| 1244 objArrayOop(result->obj_at(trace_methods_offset))); | |
| 1245 typeArrayHandle bcis (thread, | |
| 1246 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
| 1247 | |
| 1248 if (methods.is_null() || bcis.is_null()) { | |
| 1249 print_to_stream(stream, no_stack_trace_message()); | |
| 1250 return; | |
| 1251 } | |
| 1252 | |
| 1253 int length = methods()->length(); | |
| 1254 for (int index = 0; index < length; index++) { | |
| 1255 methodOop method = methodOop(methods()->obj_at(index)); | |
| 1256 if (method == NULL) return; | |
| 1257 int bci = bcis->ushort_at(index); | |
| 1258 print_stack_element(stream, method, bci); | |
| 1259 } | |
| 1260 result = objArrayHandle(thread, objArrayOop(result->obj_at(trace_next_offset))); | |
| 1261 } | |
| 1262 } | |
| 1263 | |
| 1264 // This class provides a simple wrapper over the internal structure of | |
| 1265 // exception backtrace to insulate users of the backtrace from needing | |
| 1266 // to know what it looks like. | |
| 1267 class BacktraceBuilder: public StackObj { | |
| 1268 private: | |
| 1269 Handle _backtrace; | |
| 1270 objArrayOop _head; | |
| 1271 objArrayOop _methods; | |
| 1272 typeArrayOop _bcis; | |
| 1273 int _index; | |
| 1274 bool _dirty; | |
| 1275 No_Safepoint_Verifier _nsv; | |
| 1276 | |
| 1277 public: | |
| 1278 | |
| 1279 enum { | |
| 1280 trace_methods_offset = java_lang_Throwable::trace_methods_offset, | |
| 1281 trace_bcis_offset = java_lang_Throwable::trace_bcis_offset, | |
| 1282 trace_next_offset = java_lang_Throwable::trace_next_offset, | |
| 1283 trace_size = java_lang_Throwable::trace_size, | |
| 1284 trace_chunk_size = java_lang_Throwable::trace_chunk_size | |
| 1285 }; | |
| 1286 | |
| 1287 // constructor for new backtrace | |
|
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1288 BacktraceBuilder(TRAPS): _methods(NULL), _bcis(NULL), _head(NULL), _dirty(false) { |
| 0 | 1289 expand(CHECK); |
| 1290 _backtrace = _head; | |
| 1291 _index = 0; | |
| 1292 } | |
| 1293 | |
| 1294 void flush() { | |
|
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1295 // The following appears to have been an optimization to save from |
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1296 // doing a barrier for each individual store into the _methods array, |
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1297 // but rather to do it for the entire array after the series of writes. |
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1298 // That optimization seems to have been lost when compressed oops was |
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1299 // implemented. However, the extra card-marks below was left in place, |
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1300 // but is now redundant because the individual stores into the |
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1301 // _methods array already execute the barrier code. CR 6918185 has |
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1302 // been filed so the original code may be restored by deferring the |
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1303 // barriers until after the entire sequence of stores, thus re-enabling |
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1304 // the intent of the original optimization. In the meantime the redundant |
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1305 // card mark below is now disabled. |
| 0 | 1306 if (_dirty && _methods != NULL) { |
|
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1307 #if 0 |
| 0 | 1308 BarrierSet* bs = Universe::heap()->barrier_set(); |
| 1309 assert(bs->has_write_ref_array_opt(), "Barrier set must have ref array opt"); | |
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1310 bs->write_ref_array((HeapWord*)_methods->base(), _methods->length()); |
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1311 #endif |
| 0 | 1312 _dirty = false; |
| 1313 } | |
| 1314 } | |
| 1315 | |
| 1316 void expand(TRAPS) { | |
| 1317 flush(); | |
| 1318 | |
| 1319 objArrayHandle old_head(THREAD, _head); | |
| 1320 Pause_No_Safepoint_Verifier pnsv(&_nsv); | |
| 1321 | |
| 1322 objArrayOop head = oopFactory::new_objectArray(trace_size, CHECK); | |
| 1323 objArrayHandle new_head(THREAD, head); | |
| 1324 | |
| 1325 objArrayOop methods = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
| 1326 objArrayHandle new_methods(THREAD, methods); | |
| 1327 | |
| 1328 typeArrayOop bcis = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
| 1329 typeArrayHandle new_bcis(THREAD, bcis); | |
| 1330 | |
| 1331 if (!old_head.is_null()) { | |
| 1332 old_head->obj_at_put(trace_next_offset, new_head()); | |
| 1333 } | |
| 1334 new_head->obj_at_put(trace_methods_offset, new_methods()); | |
| 1335 new_head->obj_at_put(trace_bcis_offset, new_bcis()); | |
| 1336 | |
| 1337 _head = new_head(); | |
| 1338 _methods = new_methods(); | |
| 1339 _bcis = new_bcis(); | |
| 1340 _index = 0; | |
| 1341 } | |
| 1342 | |
| 1343 oop backtrace() { | |
| 1344 flush(); | |
| 1345 return _backtrace(); | |
| 1346 } | |
| 1347 | |
| 1348 inline void push(methodOop method, short bci, TRAPS) { | |
| 1349 if (_index >= trace_chunk_size) { | |
| 1350 methodHandle mhandle(THREAD, method); | |
| 1351 expand(CHECK); | |
| 1352 method = mhandle(); | |
| 1353 } | |
| 1354 | |
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1355 _methods->obj_at_put(_index, method); |
| 0 | 1356 _bcis->ushort_at_put(_index, bci); |
| 1357 _index++; | |
| 1358 _dirty = true; | |
| 1359 } | |
| 1360 | |
| 1361 methodOop current_method() { | |
| 1362 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
| 1363 return methodOop(_methods->obj_at(_index)); | |
| 1364 } | |
| 1365 | |
| 1366 jushort current_bci() { | |
| 1367 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
| 1368 return _bcis->ushort_at(_index); | |
| 1369 } | |
| 1370 }; | |
| 1371 | |
| 1372 | |
| 1373 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, TRAPS) { | |
| 1374 if (!StackTraceInThrowable) return; | |
| 1375 ResourceMark rm(THREAD); | |
| 1376 | |
| 1377 // Start out by clearing the backtrace for this object, in case the VM | |
| 1378 // runs out of memory while allocating the stack trace | |
| 1379 set_backtrace(throwable(), NULL); | |
| 1380 if (JDK_Version::is_gte_jdk14x_version()) { | |
| 1381 // New since 1.4, clear lazily constructed Java level stacktrace if | |
| 1382 // refilling occurs | |
| 1383 clear_stacktrace(throwable()); | |
| 1384 } | |
| 1385 | |
| 1386 int max_depth = MaxJavaStackTraceDepth; | |
| 1387 JavaThread* thread = (JavaThread*)THREAD; | |
| 1388 BacktraceBuilder bt(CHECK); | |
| 1389 | |
| 1390 // Instead of using vframe directly, this version of fill_in_stack_trace | |
| 1391 // basically handles everything by hand. This significantly improved the | |
| 1392 // speed of this method call up to 28.5% on Solaris sparc. 27.1% on Windows. | |
| 1393 // See bug 6333838 for more details. | |
| 1394 // The "ASSERT" here is to verify this method generates the exactly same stack | |
| 1395 // trace as utilizing vframe. | |
| 1396 #ifdef ASSERT | |
| 1397 vframeStream st(thread); | |
| 1398 methodHandle st_method(THREAD, st.method()); | |
| 1399 #endif | |
| 1400 int total_count = 0; | |
| 1401 RegisterMap map(thread, false); | |
| 1402 int decode_offset = 0; | |
| 1403 nmethod* nm = NULL; | |
| 1404 bool skip_fillInStackTrace_check = false; | |
| 1405 bool skip_throwableInit_check = false; | |
| 1406 | |
| 1407 for (frame fr = thread->last_frame(); max_depth != total_count;) { | |
| 1408 methodOop method = NULL; | |
| 1409 int bci = 0; | |
| 1410 | |
| 1411 // Compiled java method case. | |
| 1412 if (decode_offset != 0) { | |
| 1413 DebugInfoReadStream stream(nm, decode_offset); | |
| 1414 decode_offset = stream.read_int(); | |
| 1415 method = (methodOop)nm->oop_at(stream.read_int()); | |
|
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1416 bci = stream.read_bci(); |
| 0 | 1417 } else { |
| 1418 if (fr.is_first_frame()) break; | |
| 1419 address pc = fr.pc(); | |
| 1420 if (fr.is_interpreted_frame()) { | |
| 1421 intptr_t bcx = fr.interpreter_frame_bcx(); | |
| 1422 method = fr.interpreter_frame_method(); | |
| 1423 bci = fr.is_bci(bcx) ? bcx : method->bci_from((address)bcx); | |
| 1424 fr = fr.sender(&map); | |
| 1425 } else { | |
| 1426 CodeBlob* cb = fr.cb(); | |
| 1427 // HMMM QQQ might be nice to have frame return nm as NULL if cb is non-NULL | |
| 1428 // but non nmethod | |
| 1429 fr = fr.sender(&map); | |
| 1430 if (cb == NULL || !cb->is_nmethod()) { | |
| 1431 continue; | |
| 1432 } | |
| 1433 nm = (nmethod*)cb; | |
| 1434 if (nm->method()->is_native()) { | |
| 1435 method = nm->method(); | |
| 1436 bci = 0; | |
| 1437 } else { | |
| 1438 PcDesc* pd = nm->pc_desc_at(pc); | |
| 1439 decode_offset = pd->scope_decode_offset(); | |
| 1440 // if decode_offset is not equal to 0, it will execute the | |
| 1441 // "compiled java method case" at the beginning of the loop. | |
| 1442 continue; | |
| 1443 } | |
| 1444 } | |
| 1445 } | |
| 1446 #ifdef ASSERT | |
| 1447 assert(st_method() == method && st.bci() == bci, | |
| 1448 "Wrong stack trace"); | |
| 1449 st.next(); | |
| 1450 // vframeStream::method isn't GC-safe so store off a copy | |
| 1451 // of the methodOop in case we GC. | |
| 1452 if (!st.at_end()) { | |
| 1453 st_method = st.method(); | |
| 1454 } | |
| 1455 #endif | |
| 1456 if (!skip_fillInStackTrace_check) { | |
| 1457 // check "fillInStackTrace" only once, so we negate the flag | |
| 1458 // after the first time check. | |
| 1459 skip_fillInStackTrace_check = true; | |
| 1460 if (method->name() == vmSymbols::fillInStackTrace_name()) { | |
| 1461 continue; | |
| 1462 } | |
| 1463 } | |
| 1464 // skip <init> methods of the exceptions klass. If there is <init> methods | |
| 1465 // that belongs to a superclass of the exception we are going to skipping | |
| 1466 // them in stack trace. This is simlar to classic VM. | |
| 1467 if (!skip_throwableInit_check) { | |
| 1468 if (method->name() == vmSymbols::object_initializer_name() && | |
| 1469 throwable->is_a(method->method_holder())) { | |
| 1470 continue; | |
| 1471 } else { | |
| 1472 // if no "Throwable.init()" method found, we stop checking it next time. | |
| 1473 skip_throwableInit_check = true; | |
| 1474 } | |
| 1475 } | |
| 1476 bt.push(method, bci, CHECK); | |
| 1477 total_count++; | |
| 1478 } | |
| 1479 | |
| 1480 // Put completed stack trace into throwable object | |
| 1481 set_backtrace(throwable(), bt.backtrace()); | |
| 1482 } | |
| 1483 | |
| 1484 void java_lang_Throwable::fill_in_stack_trace(Handle throwable) { | |
| 1485 // No-op if stack trace is disabled | |
| 1486 if (!StackTraceInThrowable) { | |
| 1487 return; | |
| 1488 } | |
| 1489 | |
| 1490 // Disable stack traces for some preallocated out of memory errors | |
| 1491 if (!Universe::should_fill_in_stack_trace(throwable)) { | |
| 1492 return; | |
| 1493 } | |
| 1494 | |
| 1495 PRESERVE_EXCEPTION_MARK; | |
| 1496 | |
| 1497 JavaThread* thread = JavaThread::active(); | |
| 1498 fill_in_stack_trace(throwable, thread); | |
| 1499 // ignore exceptions thrown during stack trace filling | |
| 1500 CLEAR_PENDING_EXCEPTION; | |
| 1501 } | |
| 1502 | |
| 1503 void java_lang_Throwable::allocate_backtrace(Handle throwable, TRAPS) { | |
| 1504 // Allocate stack trace - backtrace is created but not filled in | |
| 1505 | |
| 1506 // No-op if stack trace is disabled | |
| 1507 if (!StackTraceInThrowable) return; | |
| 1508 | |
| 1509 objArrayOop h_oop = oopFactory::new_objectArray(trace_size, CHECK); | |
| 1510 objArrayHandle backtrace (THREAD, h_oop); | |
| 1511 objArrayOop m_oop = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
| 1512 objArrayHandle methods (THREAD, m_oop); | |
| 1513 typeArrayOop b = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
| 1514 typeArrayHandle bcis(THREAD, b); | |
| 1515 | |
| 1516 // backtrace has space for one chunk (next is NULL) | |
| 1517 backtrace->obj_at_put(trace_methods_offset, methods()); | |
| 1518 backtrace->obj_at_put(trace_bcis_offset, bcis()); | |
| 1519 set_backtrace(throwable(), backtrace()); | |
| 1520 } | |
| 1521 | |
| 1522 | |
| 1523 void java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(Handle throwable) { | |
| 1524 // Fill in stack trace into preallocated backtrace (no GC) | |
| 1525 | |
| 1526 // No-op if stack trace is disabled | |
| 1527 if (!StackTraceInThrowable) return; | |
| 1528 | |
| 1142 | 1529 assert(throwable->is_a(SystemDictionary::Throwable_klass()), "sanity check"); |
| 0 | 1530 |
| 1531 oop backtrace = java_lang_Throwable::backtrace(throwable()); | |
| 1532 assert(backtrace != NULL, "backtrace not preallocated"); | |
| 1533 | |
| 1534 oop m = objArrayOop(backtrace)->obj_at(trace_methods_offset); | |
| 1535 objArrayOop methods = objArrayOop(m); | |
| 1536 assert(methods != NULL && methods->length() > 0, "method array not preallocated"); | |
| 1537 | |
| 1538 oop b = objArrayOop(backtrace)->obj_at(trace_bcis_offset); | |
| 1539 typeArrayOop bcis = typeArrayOop(b); | |
| 1540 assert(bcis != NULL, "bci array not preallocated"); | |
| 1541 | |
| 1542 assert(methods->length() == bcis->length(), "method and bci arrays should match"); | |
| 1543 | |
| 1544 JavaThread* thread = JavaThread::current(); | |
| 1545 ResourceMark rm(thread); | |
| 1546 vframeStream st(thread); | |
| 1547 | |
| 1548 // Unlike fill_in_stack_trace we do not skip fillInStackTrace or throwable init | |
| 1549 // methods as preallocated errors aren't created by "java" code. | |
| 1550 | |
| 1551 // fill in as much stack trace as possible | |
| 1552 int max_chunks = MIN2(methods->length(), (int)MaxJavaStackTraceDepth); | |
| 1553 int chunk_count = 0; | |
| 1554 | |
| 1555 for (;!st.at_end(); st.next()) { | |
| 1556 // add element | |
| 1557 bcis->ushort_at_put(chunk_count, st.bci()); | |
| 1558 methods->obj_at_put(chunk_count, st.method()); | |
| 1559 | |
| 1560 chunk_count++; | |
| 1561 | |
| 1562 // Bail-out for deep stacks | |
| 1563 if (chunk_count >= max_chunks) break; | |
| 1564 } | |
| 1565 } | |
| 1566 | |
| 1567 | |
| 1568 int java_lang_Throwable::get_stack_trace_depth(oop throwable, TRAPS) { | |
| 1569 if (throwable == NULL) { | |
| 1570 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
| 1571 } | |
| 1572 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
| 1573 int depth = 0; | |
| 1574 if (chunk != NULL) { | |
| 1575 // Iterate over chunks and count full ones | |
| 1576 while (true) { | |
| 1577 objArrayOop next = objArrayOop(chunk->obj_at(trace_next_offset)); | |
| 1578 if (next == NULL) break; | |
| 1579 depth += trace_chunk_size; | |
| 1580 chunk = next; | |
| 1581 } | |
| 1582 assert(chunk != NULL && chunk->obj_at(trace_next_offset) == NULL, "sanity check"); | |
| 1583 // Count element in remaining partial chunk | |
| 1584 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
| 1585 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
| 1586 assert(methods != NULL && bcis != NULL, "sanity check"); | |
| 1587 for (int i = 0; i < methods->length(); i++) { | |
| 1588 if (methods->obj_at(i) == NULL) break; | |
| 1589 depth++; | |
| 1590 } | |
| 1591 } | |
| 1592 return depth; | |
| 1593 } | |
| 1594 | |
| 1595 | |
| 1596 oop java_lang_Throwable::get_stack_trace_element(oop throwable, int index, TRAPS) { | |
| 1597 if (throwable == NULL) { | |
| 1598 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
| 1599 } | |
| 1600 if (index < 0) { | |
| 1601 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1602 } | |
| 1603 // Compute how many chunks to skip and index into actual chunk | |
| 1604 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
| 1605 int skip_chunks = index / trace_chunk_size; | |
| 1606 int chunk_index = index % trace_chunk_size; | |
| 1607 while (chunk != NULL && skip_chunks > 0) { | |
| 1608 chunk = objArrayOop(chunk->obj_at(trace_next_offset)); | |
| 1609 skip_chunks--; | |
| 1610 } | |
| 1611 if (chunk == NULL) { | |
| 1612 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1613 } | |
| 1614 // Get method,bci from chunk | |
| 1615 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
| 1616 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
| 1617 assert(methods != NULL && bcis != NULL, "sanity check"); | |
| 1618 methodHandle method(THREAD, methodOop(methods->obj_at(chunk_index))); | |
| 1619 int bci = bcis->ushort_at(chunk_index); | |
| 1620 // Chunk can be partial full | |
| 1621 if (method.is_null()) { | |
| 1622 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1623 } | |
| 1624 | |
| 1625 oop element = java_lang_StackTraceElement::create(method, bci, CHECK_0); | |
| 1626 return element; | |
| 1627 } | |
| 1628 | |
| 1629 oop java_lang_StackTraceElement::create(methodHandle method, int bci, TRAPS) { | |
| 1630 // SystemDictionary::stackTraceElement_klass() will be null for pre-1.4 JDKs | |
| 1631 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
| 1632 | |
| 1633 // Allocate java.lang.StackTraceElement instance | |
| 1142 | 1634 klassOop k = SystemDictionary::StackTraceElement_klass(); |
|
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1635 assert(k != NULL, "must be loaded in 1.4+"); |
| 0 | 1636 instanceKlassHandle ik (THREAD, k); |
| 1637 if (ik->should_be_initialized()) { | |
| 1638 ik->initialize(CHECK_0); | |
| 1639 } | |
| 1640 | |
| 1641 Handle element = ik->allocate_instance_handle(CHECK_0); | |
| 1642 // Fill in class name | |
| 1643 ResourceMark rm(THREAD); | |
| 1644 const char* str = instanceKlass::cast(method->method_holder())->external_name(); | |
| 1645 oop classname = StringTable::intern((char*) str, CHECK_0); | |
| 1646 java_lang_StackTraceElement::set_declaringClass(element(), classname); | |
| 1647 // Fill in method name | |
| 1648 oop methodname = StringTable::intern(method->name(), CHECK_0); | |
| 1649 java_lang_StackTraceElement::set_methodName(element(), methodname); | |
| 1650 // Fill in source file name | |
|
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1651 Symbol* source = instanceKlass::cast(method->method_holder())->source_file_name(); |
| 0 | 1652 oop filename = StringTable::intern(source, CHECK_0); |
| 1653 java_lang_StackTraceElement::set_fileName(element(), filename); | |
| 1654 // File in source line number | |
| 1655 int line_number; | |
| 1656 if (method->is_native()) { | |
| 1657 // Negative value different from -1 below, enabling Java code in | |
| 1658 // class java.lang.StackTraceElement to distinguish "native" from | |
| 1659 // "no LineNumberTable". | |
| 1660 line_number = -2; | |
| 1661 } else { | |
| 1662 // Returns -1 if no LineNumberTable, and otherwise actual line number | |
| 1663 line_number = method->line_number_from_bci(bci); | |
| 1664 } | |
| 1665 java_lang_StackTraceElement::set_lineNumber(element(), line_number); | |
| 1666 | |
| 1667 return element(); | |
| 1668 } | |
| 1669 | |
| 1670 | |
| 1671 void java_lang_reflect_AccessibleObject::compute_offsets() { | |
| 1142 | 1672 klassOop k = SystemDictionary::reflect_AccessibleObject_klass(); |
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1673 compute_offset(override_offset, k, vmSymbols::override_name(), vmSymbols::bool_signature()); |
| 0 | 1674 } |
| 1675 | |
| 1676 jboolean java_lang_reflect_AccessibleObject::override(oop reflect) { | |
| 1677 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1678 return (jboolean) reflect->bool_field(override_offset); | |
| 1679 } | |
| 1680 | |
| 1681 void java_lang_reflect_AccessibleObject::set_override(oop reflect, jboolean value) { | |
| 1682 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1683 reflect->bool_field_put(override_offset, (int) value); | |
| 1684 } | |
| 1685 | |
| 1686 void java_lang_reflect_Method::compute_offsets() { | |
| 1142 | 1687 klassOop k = SystemDictionary::reflect_Method_klass(); |
|
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1688 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1689 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1690 compute_offset(returnType_offset, k, vmSymbols::returnType_name(), vmSymbols::class_signature()); |
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1691 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1692 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1693 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1694 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 1695 // The generic signature and annotations fields are only present in 1.5 |
| 1696 signature_offset = -1; | |
| 1697 annotations_offset = -1; | |
| 1698 parameter_annotations_offset = -1; | |
| 1699 annotation_default_offset = -1; | |
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1700 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1701 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1702 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
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1703 compute_optional_offset(annotation_default_offset, k, vmSymbols::annotation_default_name(), vmSymbols::byte_array_signature()); |
| 0 | 1704 } |
| 1705 | |
| 1706 Handle java_lang_reflect_Method::create(TRAPS) { | |
| 1707 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1142 | 1708 klassOop klass = SystemDictionary::reflect_Method_klass(); |
| 0 | 1709 // This class is eagerly initialized during VM initialization, since we keep a refence |
| 1710 // to one of the methods | |
| 1711 assert(instanceKlass::cast(klass)->is_initialized(), "must be initialized"); | |
| 1712 return instanceKlass::cast(klass)->allocate_instance_handle(CHECK_NH); | |
| 1713 } | |
| 1714 | |
| 1715 oop java_lang_reflect_Method::clazz(oop reflect) { | |
| 1716 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1717 return reflect->obj_field(clazz_offset); | |
| 1718 } | |
| 1719 | |
| 1720 void java_lang_reflect_Method::set_clazz(oop reflect, oop value) { | |
| 1721 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1722 reflect->obj_field_put(clazz_offset, value); | |
| 1723 } | |
| 1724 | |
| 1725 int java_lang_reflect_Method::slot(oop reflect) { | |
| 1726 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1727 return reflect->int_field(slot_offset); | |
| 1728 } | |
| 1729 | |
| 1730 void java_lang_reflect_Method::set_slot(oop reflect, int value) { | |
| 1731 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1732 reflect->int_field_put(slot_offset, value); | |
| 1733 } | |
| 1734 | |
| 1735 oop java_lang_reflect_Method::name(oop method) { | |
| 1736 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1737 return method->obj_field(name_offset); | |
| 1738 } | |
| 1739 | |
| 1740 void java_lang_reflect_Method::set_name(oop method, oop value) { | |
| 1741 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1742 method->obj_field_put(name_offset, value); | |
| 1743 } | |
| 1744 | |
| 1745 oop java_lang_reflect_Method::return_type(oop method) { | |
| 1746 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1747 return method->obj_field(returnType_offset); | |
| 1748 } | |
| 1749 | |
| 1750 void java_lang_reflect_Method::set_return_type(oop method, oop value) { | |
| 1751 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1752 method->obj_field_put(returnType_offset, value); | |
| 1753 } | |
| 1754 | |
| 1755 oop java_lang_reflect_Method::parameter_types(oop method) { | |
| 1756 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1757 return method->obj_field(parameterTypes_offset); | |
| 1758 } | |
| 1759 | |
| 1760 void java_lang_reflect_Method::set_parameter_types(oop method, oop value) { | |
| 1761 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1762 method->obj_field_put(parameterTypes_offset, value); | |
| 1763 } | |
| 1764 | |
| 1765 oop java_lang_reflect_Method::exception_types(oop method) { | |
| 1766 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1767 return method->obj_field(exceptionTypes_offset); | |
| 1768 } | |
| 1769 | |
| 1770 void java_lang_reflect_Method::set_exception_types(oop method, oop value) { | |
| 1771 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1772 method->obj_field_put(exceptionTypes_offset, value); | |
| 1773 } | |
| 1774 | |
| 1775 int java_lang_reflect_Method::modifiers(oop method) { | |
| 1776 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1777 return method->int_field(modifiers_offset); | |
| 1778 } | |
| 1779 | |
| 1780 void java_lang_reflect_Method::set_modifiers(oop method, int value) { | |
| 1781 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1782 method->int_field_put(modifiers_offset, value); | |
| 1783 } | |
| 1784 | |
| 1785 bool java_lang_reflect_Method::has_signature_field() { | |
| 1786 return (signature_offset >= 0); | |
| 1787 } | |
| 1788 | |
| 1789 oop java_lang_reflect_Method::signature(oop method) { | |
| 1790 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1791 assert(has_signature_field(), "signature field must be present"); | |
| 1792 return method->obj_field(signature_offset); | |
| 1793 } | |
| 1794 | |
| 1795 void java_lang_reflect_Method::set_signature(oop method, oop value) { | |
| 1796 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1797 assert(has_signature_field(), "signature field must be present"); | |
| 1798 method->obj_field_put(signature_offset, value); | |
| 1799 } | |
| 1800 | |
| 1801 bool java_lang_reflect_Method::has_annotations_field() { | |
| 1802 return (annotations_offset >= 0); | |
| 1803 } | |
| 1804 | |
| 1805 oop java_lang_reflect_Method::annotations(oop method) { | |
| 1806 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1807 assert(has_annotations_field(), "annotations field must be present"); | |
| 1808 return method->obj_field(annotations_offset); | |
| 1809 } | |
| 1810 | |
| 1811 void java_lang_reflect_Method::set_annotations(oop method, oop value) { | |
| 1812 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1813 assert(has_annotations_field(), "annotations field must be present"); | |
| 1814 method->obj_field_put(annotations_offset, value); | |
| 1815 } | |
| 1816 | |
| 1817 bool java_lang_reflect_Method::has_parameter_annotations_field() { | |
| 1818 return (parameter_annotations_offset >= 0); | |
| 1819 } | |
| 1820 | |
| 1821 oop java_lang_reflect_Method::parameter_annotations(oop method) { | |
| 1822 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1823 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1824 return method->obj_field(parameter_annotations_offset); | |
| 1825 } | |
| 1826 | |
| 1827 void java_lang_reflect_Method::set_parameter_annotations(oop method, oop value) { | |
| 1828 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1829 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1830 method->obj_field_put(parameter_annotations_offset, value); | |
| 1831 } | |
| 1832 | |
| 1833 bool java_lang_reflect_Method::has_annotation_default_field() { | |
| 1834 return (annotation_default_offset >= 0); | |
| 1835 } | |
| 1836 | |
| 1837 oop java_lang_reflect_Method::annotation_default(oop method) { | |
| 1838 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1839 assert(has_annotation_default_field(), "annotation default field must be present"); | |
| 1840 return method->obj_field(annotation_default_offset); | |
| 1841 } | |
| 1842 | |
| 1843 void java_lang_reflect_Method::set_annotation_default(oop method, oop value) { | |
| 1844 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1845 assert(has_annotation_default_field(), "annotation default field must be present"); | |
| 1846 method->obj_field_put(annotation_default_offset, value); | |
| 1847 } | |
| 1848 | |
| 1849 void java_lang_reflect_Constructor::compute_offsets() { | |
| 1142 | 1850 klassOop k = SystemDictionary::reflect_Constructor_klass(); |
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1851 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1852 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1853 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1854 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1855 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 1856 // The generic signature and annotations fields are only present in 1.5 |
| 1857 signature_offset = -1; | |
| 1858 annotations_offset = -1; | |
| 1859 parameter_annotations_offset = -1; | |
|
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1860 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1861 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1862 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
| 0 | 1863 } |
| 1864 | |
| 1865 Handle java_lang_reflect_Constructor::create(TRAPS) { | |
| 1866 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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1867 Symbol* name = vmSymbols::java_lang_reflect_Constructor(); |
| 0 | 1868 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
| 1869 instanceKlassHandle klass (THREAD, k); | |
| 1870 // Ensure it is initialized | |
| 1871 klass->initialize(CHECK_NH); | |
| 1872 return klass->allocate_instance_handle(CHECK_NH); | |
| 1873 } | |
| 1874 | |
| 1875 oop java_lang_reflect_Constructor::clazz(oop reflect) { | |
| 1876 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1877 return reflect->obj_field(clazz_offset); | |
| 1878 } | |
| 1879 | |
| 1880 void java_lang_reflect_Constructor::set_clazz(oop reflect, oop value) { | |
| 1881 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1882 reflect->obj_field_put(clazz_offset, value); | |
| 1883 } | |
| 1884 | |
| 1885 oop java_lang_reflect_Constructor::parameter_types(oop constructor) { | |
| 1886 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1887 return constructor->obj_field(parameterTypes_offset); | |
| 1888 } | |
| 1889 | |
| 1890 void java_lang_reflect_Constructor::set_parameter_types(oop constructor, oop value) { | |
| 1891 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1892 constructor->obj_field_put(parameterTypes_offset, value); | |
| 1893 } | |
| 1894 | |
| 1895 oop java_lang_reflect_Constructor::exception_types(oop constructor) { | |
| 1896 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1897 return constructor->obj_field(exceptionTypes_offset); | |
| 1898 } | |
| 1899 | |
| 1900 void java_lang_reflect_Constructor::set_exception_types(oop constructor, oop value) { | |
| 1901 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1902 constructor->obj_field_put(exceptionTypes_offset, value); | |
| 1903 } | |
| 1904 | |
| 1905 int java_lang_reflect_Constructor::slot(oop reflect) { | |
| 1906 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1907 return reflect->int_field(slot_offset); | |
| 1908 } | |
| 1909 | |
| 1910 void java_lang_reflect_Constructor::set_slot(oop reflect, int value) { | |
| 1911 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1912 reflect->int_field_put(slot_offset, value); | |
| 1913 } | |
| 1914 | |
| 1915 int java_lang_reflect_Constructor::modifiers(oop constructor) { | |
| 1916 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1917 return constructor->int_field(modifiers_offset); | |
| 1918 } | |
| 1919 | |
| 1920 void java_lang_reflect_Constructor::set_modifiers(oop constructor, int value) { | |
| 1921 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1922 constructor->int_field_put(modifiers_offset, value); | |
| 1923 } | |
| 1924 | |
| 1925 bool java_lang_reflect_Constructor::has_signature_field() { | |
| 1926 return (signature_offset >= 0); | |
| 1927 } | |
| 1928 | |
| 1929 oop java_lang_reflect_Constructor::signature(oop constructor) { | |
| 1930 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1931 assert(has_signature_field(), "signature field must be present"); | |
| 1932 return constructor->obj_field(signature_offset); | |
| 1933 } | |
| 1934 | |
| 1935 void java_lang_reflect_Constructor::set_signature(oop constructor, oop value) { | |
| 1936 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1937 assert(has_signature_field(), "signature field must be present"); | |
| 1938 constructor->obj_field_put(signature_offset, value); | |
| 1939 } | |
| 1940 | |
| 1941 bool java_lang_reflect_Constructor::has_annotations_field() { | |
| 1942 return (annotations_offset >= 0); | |
| 1943 } | |
| 1944 | |
| 1945 oop java_lang_reflect_Constructor::annotations(oop constructor) { | |
| 1946 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1947 assert(has_annotations_field(), "annotations field must be present"); | |
| 1948 return constructor->obj_field(annotations_offset); | |
| 1949 } | |
| 1950 | |
| 1951 void java_lang_reflect_Constructor::set_annotations(oop constructor, oop value) { | |
| 1952 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1953 assert(has_annotations_field(), "annotations field must be present"); | |
| 1954 constructor->obj_field_put(annotations_offset, value); | |
| 1955 } | |
| 1956 | |
| 1957 bool java_lang_reflect_Constructor::has_parameter_annotations_field() { | |
| 1958 return (parameter_annotations_offset >= 0); | |
| 1959 } | |
| 1960 | |
| 1961 oop java_lang_reflect_Constructor::parameter_annotations(oop method) { | |
| 1962 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1963 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1964 return method->obj_field(parameter_annotations_offset); | |
| 1965 } | |
| 1966 | |
| 1967 void java_lang_reflect_Constructor::set_parameter_annotations(oop method, oop value) { | |
| 1968 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1969 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1970 method->obj_field_put(parameter_annotations_offset, value); | |
| 1971 } | |
| 1972 | |
| 1973 void java_lang_reflect_Field::compute_offsets() { | |
| 1142 | 1974 klassOop k = SystemDictionary::reflect_Field_klass(); |
|
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1975 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1976 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1977 compute_offset(type_offset, k, vmSymbols::type_name(), vmSymbols::class_signature()); |
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1978 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1979 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 1980 // The generic signature and annotations fields are only present in 1.5 |
| 1981 signature_offset = -1; | |
| 1982 annotations_offset = -1; | |
|
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1983 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1984 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
| 0 | 1985 } |
| 1986 | |
| 1987 Handle java_lang_reflect_Field::create(TRAPS) { | |
| 1988 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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1989 Symbol* name = vmSymbols::java_lang_reflect_Field(); |
| 0 | 1990 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
| 1991 instanceKlassHandle klass (THREAD, k); | |
| 1992 // Ensure it is initialized | |
| 1993 klass->initialize(CHECK_NH); | |
| 1994 return klass->allocate_instance_handle(CHECK_NH); | |
| 1995 } | |
| 1996 | |
| 1997 oop java_lang_reflect_Field::clazz(oop reflect) { | |
| 1998 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1999 return reflect->obj_field(clazz_offset); | |
| 2000 } | |
| 2001 | |
| 2002 void java_lang_reflect_Field::set_clazz(oop reflect, oop value) { | |
| 2003 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2004 reflect->obj_field_put(clazz_offset, value); | |
| 2005 } | |
| 2006 | |
| 2007 oop java_lang_reflect_Field::name(oop field) { | |
| 2008 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2009 return field->obj_field(name_offset); | |
| 2010 } | |
| 2011 | |
| 2012 void java_lang_reflect_Field::set_name(oop field, oop value) { | |
| 2013 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2014 field->obj_field_put(name_offset, value); | |
| 2015 } | |
| 2016 | |
| 2017 oop java_lang_reflect_Field::type(oop field) { | |
| 2018 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2019 return field->obj_field(type_offset); | |
| 2020 } | |
| 2021 | |
| 2022 void java_lang_reflect_Field::set_type(oop field, oop value) { | |
| 2023 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2024 field->obj_field_put(type_offset, value); | |
| 2025 } | |
| 2026 | |
| 2027 int java_lang_reflect_Field::slot(oop reflect) { | |
| 2028 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2029 return reflect->int_field(slot_offset); | |
| 2030 } | |
| 2031 | |
| 2032 void java_lang_reflect_Field::set_slot(oop reflect, int value) { | |
| 2033 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2034 reflect->int_field_put(slot_offset, value); | |
| 2035 } | |
| 2036 | |
| 2037 int java_lang_reflect_Field::modifiers(oop field) { | |
| 2038 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2039 return field->int_field(modifiers_offset); | |
| 2040 } | |
| 2041 | |
| 2042 void java_lang_reflect_Field::set_modifiers(oop field, int value) { | |
| 2043 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2044 field->int_field_put(modifiers_offset, value); | |
| 2045 } | |
| 2046 | |
| 2047 bool java_lang_reflect_Field::has_signature_field() { | |
| 2048 return (signature_offset >= 0); | |
| 2049 } | |
| 2050 | |
| 2051 oop java_lang_reflect_Field::signature(oop field) { | |
| 2052 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2053 assert(has_signature_field(), "signature field must be present"); | |
| 2054 return field->obj_field(signature_offset); | |
| 2055 } | |
| 2056 | |
| 2057 void java_lang_reflect_Field::set_signature(oop field, oop value) { | |
| 2058 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2059 assert(has_signature_field(), "signature field must be present"); | |
| 2060 field->obj_field_put(signature_offset, value); | |
| 2061 } | |
| 2062 | |
| 2063 bool java_lang_reflect_Field::has_annotations_field() { | |
| 2064 return (annotations_offset >= 0); | |
| 2065 } | |
| 2066 | |
| 2067 oop java_lang_reflect_Field::annotations(oop field) { | |
| 2068 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2069 assert(has_annotations_field(), "annotations field must be present"); | |
| 2070 return field->obj_field(annotations_offset); | |
| 2071 } | |
| 2072 | |
| 2073 void java_lang_reflect_Field::set_annotations(oop field, oop value) { | |
| 2074 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2075 assert(has_annotations_field(), "annotations field must be present"); | |
| 2076 field->obj_field_put(annotations_offset, value); | |
| 2077 } | |
| 2078 | |
| 2079 | |
| 2080 void sun_reflect_ConstantPool::compute_offsets() { | |
| 1142 | 2081 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
| 0 | 2082 // This null test can be removed post beta |
| 2083 if (k != NULL) { | |
|
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2084 compute_offset(_cp_oop_offset, k, vmSymbols::constantPoolOop_name(), vmSymbols::object_signature()); |
| 0 | 2085 } |
| 2086 } | |
| 2087 | |
| 2088 | |
| 2089 Handle sun_reflect_ConstantPool::create(TRAPS) { | |
| 2090 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1142 | 2091 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
| 0 | 2092 instanceKlassHandle klass (THREAD, k); |
| 2093 // Ensure it is initialized | |
| 2094 klass->initialize(CHECK_NH); | |
| 2095 return klass->allocate_instance_handle(CHECK_NH); | |
| 2096 } | |
| 2097 | |
| 2098 | |
| 2099 oop sun_reflect_ConstantPool::cp_oop(oop reflect) { | |
| 2100 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2101 return reflect->obj_field(_cp_oop_offset); | |
| 2102 } | |
| 2103 | |
| 2104 | |
| 2105 void sun_reflect_ConstantPool::set_cp_oop(oop reflect, oop value) { | |
| 2106 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2107 reflect->obj_field_put(_cp_oop_offset, value); | |
| 2108 } | |
| 2109 | |
| 2110 void sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets() { | |
| 1142 | 2111 klassOop k = SystemDictionary::reflect_UnsafeStaticFieldAccessorImpl_klass(); |
| 0 | 2112 // This null test can be removed post beta |
| 2113 if (k != NULL) { | |
|
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2114 compute_offset(_base_offset, k, |
| 0 | 2115 vmSymbols::base_name(), vmSymbols::object_signature()); |
| 2116 } | |
| 2117 } | |
| 2118 | |
|
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2119 oop java_lang_boxing_object::initialize_and_allocate(BasicType type, TRAPS) { |
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2120 klassOop k = SystemDictionary::box_klass(type); |
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2121 if (k == NULL) return NULL; |
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2122 instanceKlassHandle h (THREAD, k); |
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2123 if (!h->is_initialized()) h->initialize(CHECK_0); |
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2124 return h->allocate_instance(THREAD); |
| 0 | 2125 } |
| 2126 | |
| 2127 | |
| 2128 oop java_lang_boxing_object::create(BasicType type, jvalue* value, TRAPS) { | |
|
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2129 oop box = initialize_and_allocate(type, CHECK_0); |
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2130 if (box == NULL) return NULL; |
| 0 | 2131 switch (type) { |
| 2132 case T_BOOLEAN: | |
| 2133 box->bool_field_put(value_offset, value->z); | |
| 2134 break; | |
| 2135 case T_CHAR: | |
| 2136 box->char_field_put(value_offset, value->c); | |
| 2137 break; | |
| 2138 case T_FLOAT: | |
| 2139 box->float_field_put(value_offset, value->f); | |
| 2140 break; | |
| 2141 case T_DOUBLE: | |
|
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2142 box->double_field_put(long_value_offset, value->d); |
| 0 | 2143 break; |
| 2144 case T_BYTE: | |
| 2145 box->byte_field_put(value_offset, value->b); | |
| 2146 break; | |
| 2147 case T_SHORT: | |
| 2148 box->short_field_put(value_offset, value->s); | |
| 2149 break; | |
| 2150 case T_INT: | |
| 2151 box->int_field_put(value_offset, value->i); | |
| 2152 break; | |
| 2153 case T_LONG: | |
|
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2154 box->long_field_put(long_value_offset, value->j); |
| 0 | 2155 break; |
| 2156 default: | |
| 2157 return NULL; | |
| 2158 } | |
| 2159 return box; | |
| 2160 } | |
| 2161 | |
| 2162 | |
|
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2163 BasicType java_lang_boxing_object::basic_type(oop box) { |
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2164 if (box == NULL) return T_ILLEGAL; |
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2165 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2166 if (type == T_OBJECT) // 'unknown' value returned by SD::bkt |
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2167 return T_ILLEGAL; |
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2168 return type; |
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2169 } |
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2170 |
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2171 |
| 0 | 2172 BasicType java_lang_boxing_object::get_value(oop box, jvalue* value) { |
|
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2173 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2174 switch (type) { |
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2175 case T_BOOLEAN: |
| 0 | 2176 value->z = box->bool_field(value_offset); |
|
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2177 break; |
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2178 case T_CHAR: |
| 0 | 2179 value->c = box->char_field(value_offset); |
|
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2180 break; |
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2181 case T_FLOAT: |
| 0 | 2182 value->f = box->float_field(value_offset); |
|
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2183 break; |
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2184 case T_DOUBLE: |
|
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2185 value->d = box->double_field(long_value_offset); |
|
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2186 break; |
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|
2187 case T_BYTE: |
| 0 | 2188 value->b = box->byte_field(value_offset); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2189 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2190 case T_SHORT: |
| 0 | 2191 value->s = box->short_field(value_offset); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2192 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2193 case T_INT: |
| 0 | 2194 value->i = box->int_field(value_offset); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2195 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2196 case T_LONG: |
|
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
2197 value->j = box->long_field(long_value_offset); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2198 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2199 default: |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2200 return T_ILLEGAL; |
|
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2201 } // end switch |
|
60b728ec77c1
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jrose
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113
diff
changeset
|
2202 return type; |
| 0 | 2203 } |
| 2204 | |
| 2205 | |
| 2206 BasicType java_lang_boxing_object::set_value(oop box, jvalue* value) { | |
|
132
60b728ec77c1
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113
diff
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|
2207 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
|
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2208 switch (type) { |
|
60b728ec77c1
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jrose
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diff
changeset
|
2209 case T_BOOLEAN: |
| 0 | 2210 box->bool_field_put(value_offset, value->z); |
|
132
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2211 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2212 case T_CHAR: |
| 0 | 2213 box->char_field_put(value_offset, value->c); |
|
132
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2214 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2215 case T_FLOAT: |
| 0 | 2216 box->float_field_put(value_offset, value->f); |
|
132
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2217 break; |
|
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2218 case T_DOUBLE: |
|
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
2219 box->double_field_put(long_value_offset, value->d); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2220 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2221 case T_BYTE: |
| 0 | 2222 box->byte_field_put(value_offset, value->b); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2223 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2224 case T_SHORT: |
| 0 | 2225 box->short_field_put(value_offset, value->s); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2226 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2227 case T_INT: |
| 0 | 2228 box->int_field_put(value_offset, value->i); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2229 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2230 case T_LONG: |
|
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
2231 box->long_field_put(long_value_offset, value->j); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2232 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2233 default: |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2234 return T_ILLEGAL; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2235 } // end switch |
|
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2236 return type; |
| 0 | 2237 } |
| 2238 | |
| 2239 | |
|
665
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2240 void java_lang_boxing_object::print(BasicType type, jvalue* value, outputStream* st) { |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2241 switch (type) { |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2242 case T_BOOLEAN: st->print("%s", value->z ? "true" : "false"); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2243 case T_CHAR: st->print("%d", value->c); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2244 case T_BYTE: st->print("%d", value->b); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2245 case T_SHORT: st->print("%d", value->s); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2246 case T_INT: st->print("%d", value->i); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2247 case T_LONG: st->print(INT64_FORMAT, value->j); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2248 case T_FLOAT: st->print("%f", value->f); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2249 case T_DOUBLE: st->print("%lf", value->d); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2250 default: st->print("type %d?", type); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2251 } |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2252 } |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2253 |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2254 |
| 0 | 2255 // Support for java_lang_ref_Reference |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2256 oop java_lang_ref_Reference::pending_list_lock() { |
| 1142 | 2257 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
|
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2258 address addr = ik->static_field_addr(static_lock_offset); |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2259 if (UseCompressedOops) { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2260 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2261 } else { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2262 return oopDesc::load_decode_heap_oop((oop*)addr); |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2263 } |
| 0 | 2264 } |
| 2265 | |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2266 HeapWord *java_lang_ref_Reference::pending_list_addr() { |
| 1142 | 2267 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
|
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2268 address addr = ik->static_field_addr(static_pending_offset); |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2269 // XXX This might not be HeapWord aligned, almost rather be char *. |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2270 return (HeapWord*)addr; |
| 0 | 2271 } |
| 2272 | |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2273 oop java_lang_ref_Reference::pending_list() { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2274 char *addr = (char *)pending_list_addr(); |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2275 if (UseCompressedOops) { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2276 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2277 } else { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2278 return oopDesc::load_decode_heap_oop((oop*)addr); |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2279 } |
| 0 | 2280 } |
| 2281 | |
| 2282 | |
| 2283 // Support for java_lang_ref_SoftReference | |
| 2284 | |
| 2285 jlong java_lang_ref_SoftReference::timestamp(oop ref) { | |
| 2286 return ref->long_field(timestamp_offset); | |
| 2287 } | |
| 2288 | |
| 2289 jlong java_lang_ref_SoftReference::clock() { | |
| 1142 | 2290 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
|
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2291 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
|
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2292 return *offset; |
| 0 | 2293 } |
| 2294 | |
| 2295 void java_lang_ref_SoftReference::set_clock(jlong value) { | |
| 1142 | 2296 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
|
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2297 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
|
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2298 *offset = value; |
| 0 | 2299 } |
| 2300 | |
| 2301 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2302 // Support for java_lang_invoke_MethodHandle |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2303 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2304 int java_lang_invoke_MethodHandle::_type_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2305 int java_lang_invoke_MethodHandle::_vmtarget_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2306 int java_lang_invoke_MethodHandle::_vmentry_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2307 int java_lang_invoke_MethodHandle::_vmslots_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2308 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2309 int java_lang_invoke_MemberName::_clazz_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2310 int java_lang_invoke_MemberName::_name_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2311 int java_lang_invoke_MemberName::_type_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2312 int java_lang_invoke_MemberName::_flags_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2313 int java_lang_invoke_MemberName::_vmtarget_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2314 int java_lang_invoke_MemberName::_vmindex_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2315 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2316 int java_lang_invoke_DirectMethodHandle::_vmindex_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2317 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2318 int java_lang_invoke_BoundMethodHandle::_argument_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2319 int java_lang_invoke_BoundMethodHandle::_vmargslot_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2320 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2321 int java_lang_invoke_AdapterMethodHandle::_conversion_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2322 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2323 void java_lang_invoke_MethodHandle::compute_offsets() { |
| 710 | 2324 klassOop k = SystemDictionary::MethodHandle_klass(); |
| 2325 if (k != NULL && EnableMethodHandles) { | |
|
2356
72dee110246f
6839872: remove implementation inheritance from JSR 292 APIs
jrose
parents:
2177
diff
changeset
|
2326 bool allow_super = false; |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2327 if (AllowTransitionalJSR292) allow_super = true; // temporary, to access java.dyn.MethodHandleImpl |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2328 compute_offset(_type_offset, k, vmSymbols::type_name(), vmSymbols::java_lang_invoke_MethodType_signature(), allow_super); |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2329 compute_offset(_vmtarget_offset, k, vmSymbols::vmtarget_name(), vmSymbols::object_signature(), allow_super); |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2330 compute_offset(_vmentry_offset, k, vmSymbols::vmentry_name(), vmSymbols::machine_word_signature(), allow_super); |
| 710 | 2331 |
| 2332 // Note: MH.vmslots (if it is present) is a hoisted copy of MH.type.form.vmslots. | |
| 2333 // It is optional pending experiments to keep or toss. | |
|
2356
72dee110246f
6839872: remove implementation inheritance from JSR 292 APIs
jrose
parents:
2177
diff
changeset
|
2334 compute_optional_offset(_vmslots_offset, k, vmSymbols::vmslots_name(), vmSymbols::int_signature(), allow_super); |
| 710 | 2335 } |
| 2336 } | |
| 2337 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2338 void java_lang_invoke_MemberName::compute_offsets() { |
| 710 | 2339 klassOop k = SystemDictionary::MemberName_klass(); |
| 2340 if (k != NULL && EnableMethodHandles) { | |
| 2341 compute_offset(_clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); | |
| 2342 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); | |
| 2343 compute_offset(_type_offset, k, vmSymbols::type_name(), vmSymbols::object_signature()); | |
| 2344 compute_offset(_flags_offset, k, vmSymbols::flags_name(), vmSymbols::int_signature()); | |
| 2345 compute_offset(_vmtarget_offset, k, vmSymbols::vmtarget_name(), vmSymbols::object_signature()); | |
| 2346 compute_offset(_vmindex_offset, k, vmSymbols::vmindex_name(), vmSymbols::int_signature()); | |
| 2347 } | |
| 2348 } | |
| 2349 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2350 void java_lang_invoke_DirectMethodHandle::compute_offsets() { |
| 710 | 2351 klassOop k = SystemDictionary::DirectMethodHandle_klass(); |
| 2352 if (k != NULL && EnableMethodHandles) { | |
| 2353 compute_offset(_vmindex_offset, k, vmSymbols::vmindex_name(), vmSymbols::int_signature(), true); | |
| 2354 } | |
| 2355 } | |
| 2356 | |
|
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2357 void java_lang_invoke_BoundMethodHandle::compute_offsets() { |
| 710 | 2358 klassOop k = SystemDictionary::BoundMethodHandle_klass(); |
| 2359 if (k != NULL && EnableMethodHandles) { | |
| 2360 compute_offset(_vmargslot_offset, k, vmSymbols::vmargslot_name(), vmSymbols::int_signature(), true); | |
| 2361 compute_offset(_argument_offset, k, vmSymbols::argument_name(), vmSymbols::object_signature(), true); | |
| 2362 } | |
| 2363 } | |
| 2364 | |
|
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2365 void java_lang_invoke_AdapterMethodHandle::compute_offsets() { |
| 710 | 2366 klassOop k = SystemDictionary::AdapterMethodHandle_klass(); |
| 2367 if (k != NULL && EnableMethodHandles) { | |
| 2368 compute_offset(_conversion_offset, k, vmSymbols::conversion_name(), vmSymbols::int_signature(), true); | |
| 2369 } | |
| 2370 } | |
| 2371 | |
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2372 oop java_lang_invoke_MethodHandle::type(oop mh) { |
| 710 | 2373 return mh->obj_field(_type_offset); |
| 2374 } | |
| 2375 | |
|
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2376 void java_lang_invoke_MethodHandle::set_type(oop mh, oop mtype) { |
| 710 | 2377 mh->obj_field_put(_type_offset, mtype); |
| 2378 } | |
| 2379 | |
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2380 int java_lang_invoke_MethodHandle::vmslots(oop mh) { |
| 710 | 2381 int vmslots_offset = _vmslots_offset; |
| 2382 if (vmslots_offset != 0) { | |
| 2383 #ifdef ASSERT | |
| 2384 int x = mh->int_field(vmslots_offset); | |
| 2385 int y = compute_vmslots(mh); | |
| 2386 assert(x == y, "correct hoisted value"); | |
| 2387 #endif | |
| 2388 return mh->int_field(vmslots_offset); | |
| 2389 } else { | |
| 2390 return compute_vmslots(mh); | |
| 2391 } | |
| 2392 } | |
| 2393 | |
| 2394 // if MH.vmslots exists, hoist into it the value of type.form.vmslots | |
|
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2395 void java_lang_invoke_MethodHandle::init_vmslots(oop mh) { |
| 710 | 2396 int vmslots_offset = _vmslots_offset; |
| 2397 if (vmslots_offset != 0) { | |
| 2398 mh->int_field_put(vmslots_offset, compute_vmslots(mh)); | |
| 2399 } | |
| 2400 } | |
| 2401 | |
| 2402 // fetch type.form.vmslots, which is the number of JVM stack slots | |
| 2403 // required to carry the arguments of this MH | |
|
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2404 int java_lang_invoke_MethodHandle::compute_vmslots(oop mh) { |
| 710 | 2405 oop mtype = type(mh); |
| 2406 if (mtype == NULL) return 0; // Java code would get NPE | |
|
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2407 oop form = java_lang_invoke_MethodType::form(mtype); |
| 710 | 2408 if (form == NULL) return 0; // Java code would get NPE |
|
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2409 return java_lang_invoke_MethodTypeForm::vmslots(form); |
| 710 | 2410 } |
| 2411 | |
| 2412 // fetch the low-level entry point for this mh | |
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2413 MethodHandleEntry* java_lang_invoke_MethodHandle::vmentry(oop mh) { |
| 710 | 2414 return (MethodHandleEntry*) mh->address_field(_vmentry_offset); |
| 2415 } | |
| 2416 | |
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2417 void java_lang_invoke_MethodHandle::set_vmentry(oop mh, MethodHandleEntry* me) { |
| 710 | 2418 assert(_vmentry_offset != 0, "must be present"); |
| 2419 | |
| 2420 // This is always the final step that initializes a valid method handle: | |
| 2421 mh->release_address_field_put(_vmentry_offset, (address) me); | |
| 2422 | |
| 2423 // There should be enough memory barriers on exit from native methods | |
| 2424 // to ensure that the MH is fully initialized to all threads before | |
| 2425 // Java code can publish it in global data structures. | |
| 2426 // But just in case, we use release_address_field_put. | |
| 2427 } | |
| 2428 | |
| 2429 /// MemberName accessors | |
| 2430 | |
|
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2431 oop java_lang_invoke_MemberName::clazz(oop mname) { |
| 710 | 2432 assert(is_instance(mname), "wrong type"); |
| 2433 return mname->obj_field(_clazz_offset); | |
| 2434 } | |
| 2435 | |
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2436 void java_lang_invoke_MemberName::set_clazz(oop mname, oop clazz) { |
| 710 | 2437 assert(is_instance(mname), "wrong type"); |
| 2438 mname->obj_field_put(_clazz_offset, clazz); | |
| 2439 } | |
| 2440 | |
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2441 oop java_lang_invoke_MemberName::name(oop mname) { |
| 710 | 2442 assert(is_instance(mname), "wrong type"); |
| 2443 return mname->obj_field(_name_offset); | |
| 2444 } | |
| 2445 | |
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2446 void java_lang_invoke_MemberName::set_name(oop mname, oop name) { |
| 710 | 2447 assert(is_instance(mname), "wrong type"); |
| 2448 mname->obj_field_put(_name_offset, name); | |
| 2449 } | |
| 2450 | |
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2451 oop java_lang_invoke_MemberName::type(oop mname) { |
| 710 | 2452 assert(is_instance(mname), "wrong type"); |
| 2453 return mname->obj_field(_type_offset); | |
| 2454 } | |
| 2455 | |
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2456 void java_lang_invoke_MemberName::set_type(oop mname, oop type) { |
| 710 | 2457 assert(is_instance(mname), "wrong type"); |
| 2458 mname->obj_field_put(_type_offset, type); | |
| 2459 } | |
| 2460 | |
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2461 int java_lang_invoke_MemberName::flags(oop mname) { |
| 710 | 2462 assert(is_instance(mname), "wrong type"); |
| 2463 return mname->int_field(_flags_offset); | |
| 2464 } | |
| 2465 | |
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2466 void java_lang_invoke_MemberName::set_flags(oop mname, int flags) { |
| 710 | 2467 assert(is_instance(mname), "wrong type"); |
| 2468 mname->int_field_put(_flags_offset, flags); | |
| 2469 } | |
| 2470 | |
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2471 oop java_lang_invoke_MemberName::vmtarget(oop mname) { |
| 710 | 2472 assert(is_instance(mname), "wrong type"); |
| 2473 return mname->obj_field(_vmtarget_offset); | |
| 2474 } | |
| 2475 | |
|
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2476 void java_lang_invoke_MemberName::set_vmtarget(oop mname, oop ref) { |
| 710 | 2477 assert(is_instance(mname), "wrong type"); |
| 2478 mname->obj_field_put(_vmtarget_offset, ref); | |
| 2479 } | |
| 2480 | |
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2481 int java_lang_invoke_MemberName::vmindex(oop mname) { |
| 710 | 2482 assert(is_instance(mname), "wrong type"); |
| 2483 return mname->int_field(_vmindex_offset); | |
| 2484 } | |
| 2485 | |
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2486 void java_lang_invoke_MemberName::set_vmindex(oop mname, int index) { |
| 710 | 2487 assert(is_instance(mname), "wrong type"); |
| 2488 mname->int_field_put(_vmindex_offset, index); | |
| 2489 } | |
| 2490 | |
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2491 oop java_lang_invoke_MethodHandle::vmtarget(oop mh) { |
| 710 | 2492 assert(is_instance(mh), "MH only"); |
| 2493 return mh->obj_field(_vmtarget_offset); | |
| 2494 } | |
| 2495 | |
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2496 void java_lang_invoke_MethodHandle::set_vmtarget(oop mh, oop ref) { |
| 710 | 2497 assert(is_instance(mh), "MH only"); |
| 2498 mh->obj_field_put(_vmtarget_offset, ref); | |
| 2499 } | |
| 2500 | |
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2501 int java_lang_invoke_DirectMethodHandle::vmindex(oop mh) { |
| 710 | 2502 assert(is_instance(mh), "DMH only"); |
| 2503 return mh->int_field(_vmindex_offset); | |
| 2504 } | |
| 2505 | |
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2506 void java_lang_invoke_DirectMethodHandle::set_vmindex(oop mh, int index) { |
| 710 | 2507 assert(is_instance(mh), "DMH only"); |
| 2508 mh->int_field_put(_vmindex_offset, index); | |
| 2509 } | |
| 2510 | |
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2511 int java_lang_invoke_BoundMethodHandle::vmargslot(oop mh) { |
| 710 | 2512 assert(is_instance(mh), "BMH only"); |
| 2513 return mh->int_field(_vmargslot_offset); | |
| 2514 } | |
| 2515 | |
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2516 oop java_lang_invoke_BoundMethodHandle::argument(oop mh) { |
| 710 | 2517 assert(is_instance(mh), "BMH only"); |
| 2518 return mh->obj_field(_argument_offset); | |
| 2519 } | |
| 2520 | |
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2521 int java_lang_invoke_AdapterMethodHandle::conversion(oop mh) { |
| 710 | 2522 assert(is_instance(mh), "AMH only"); |
| 2523 return mh->int_field(_conversion_offset); | |
| 2524 } | |
| 2525 | |
|
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2526 void java_lang_invoke_AdapterMethodHandle::set_conversion(oop mh, int conv) { |
| 710 | 2527 assert(is_instance(mh), "AMH only"); |
| 2528 mh->int_field_put(_conversion_offset, conv); | |
| 2529 } | |
| 2530 | |
| 2531 | |
|
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|
2532 // Support for java_lang_invoke_MethodType |
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2533 |
|
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2534 int java_lang_invoke_MethodType::_rtype_offset; |
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|
2535 int java_lang_invoke_MethodType::_ptypes_offset; |
|
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|
2536 int java_lang_invoke_MethodType::_form_offset; |
|
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2537 |
|
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|
2538 void java_lang_invoke_MethodType::compute_offsets() { |
| 710 | 2539 klassOop k = SystemDictionary::MethodType_klass(); |
| 2540 if (k != NULL) { | |
| 2541 compute_offset(_rtype_offset, k, vmSymbols::rtype_name(), vmSymbols::class_signature()); | |
| 2542 compute_offset(_ptypes_offset, k, vmSymbols::ptypes_name(), vmSymbols::class_array_signature()); | |
|
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|
2543 compute_offset(_form_offset, k, vmSymbols::form_name(), vmSymbols::java_lang_invoke_MethodTypeForm_signature()); |
| 710 | 2544 } |
| 2545 } | |
| 2546 | |
|
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|
2547 void java_lang_invoke_MethodType::print_signature(oop mt, outputStream* st) { |
| 710 | 2548 st->print("("); |
| 2549 objArrayOop pts = ptypes(mt); | |
| 2550 for (int i = 0, limit = pts->length(); i < limit; i++) { | |
| 2551 java_lang_Class::print_signature(pts->obj_at(i), st); | |
| 2552 } | |
| 2553 st->print(")"); | |
| 2554 java_lang_Class::print_signature(rtype(mt), st); | |
| 2555 } | |
| 2556 | |
|
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|
2557 Symbol* java_lang_invoke_MethodType::as_signature(oop mt, bool intern_if_not_found, TRAPS) { |
| 710 | 2558 ResourceMark rm; |
| 2559 stringStream buffer(128); | |
| 2560 print_signature(mt, &buffer); | |
| 2561 const char* sigstr = buffer.base(); | |
| 2562 int siglen = (int) buffer.size(); | |
|
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|
2563 Symbol *name; |
|
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2564 if (!intern_if_not_found) { |
|
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|
2565 name = SymbolTable::probe(sigstr, siglen); |
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|
2566 } else { |
|
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2567 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
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|
2568 } |
|
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|
2569 return name; |
| 710 | 2570 } |
| 2571 | |
|
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|
2572 oop java_lang_invoke_MethodType::rtype(oop mt) { |
| 710 | 2573 assert(is_instance(mt), "must be a MethodType"); |
| 2574 return mt->obj_field(_rtype_offset); | |
| 2575 } | |
| 2576 | |
|
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|
2577 objArrayOop java_lang_invoke_MethodType::ptypes(oop mt) { |
| 710 | 2578 assert(is_instance(mt), "must be a MethodType"); |
| 2579 return (objArrayOop) mt->obj_field(_ptypes_offset); | |
| 2580 } | |
| 2581 | |
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2582 oop java_lang_invoke_MethodType::form(oop mt) { |
| 710 | 2583 assert(is_instance(mt), "must be a MethodType"); |
| 2584 return mt->obj_field(_form_offset); | |
| 2585 } | |
| 2586 | |
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|
2587 oop java_lang_invoke_MethodType::ptype(oop mt, int idx) { |
| 710 | 2588 return ptypes(mt)->obj_at(idx); |
| 2589 } | |
| 2590 | |
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2591 int java_lang_invoke_MethodType::ptype_count(oop mt) { |
|
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2592 return ptypes(mt)->length(); |
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|
2593 } |
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2594 |
| 710 | 2595 |
| 2596 | |
|
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|
2597 // Support for java_lang_invoke_MethodTypeForm |
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2598 |
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2599 int java_lang_invoke_MethodTypeForm::_vmslots_offset; |
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2600 int java_lang_invoke_MethodTypeForm::_erasedType_offset; |
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|
2601 int java_lang_invoke_MethodTypeForm::_genericInvoker_offset; |
|
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2602 |
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2603 void java_lang_invoke_MethodTypeForm::compute_offsets() { |
| 710 | 2604 klassOop k = SystemDictionary::MethodTypeForm_klass(); |
| 2605 if (k != NULL) { | |
| 2606 compute_optional_offset(_vmslots_offset, k, vmSymbols::vmslots_name(), vmSymbols::int_signature(), true); | |
|
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2607 compute_optional_offset(_erasedType_offset, k, vmSymbols::erasedType_name(), vmSymbols::java_lang_invoke_MethodType_signature(), true); |
|
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2608 compute_optional_offset(_genericInvoker_offset, k, vmSymbols::genericInvoker_name(), vmSymbols::java_lang_invoke_MethodHandle_signature(), true); |
|
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|
2609 if (_genericInvoker_offset == 0) _genericInvoker_offset = -1; // set to explicit "empty" value |
| 710 | 2610 } |
| 2611 } | |
| 2612 | |
|
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2613 int java_lang_invoke_MethodTypeForm::vmslots(oop mtform) { |
| 710 | 2614 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
| 2615 return mtform->int_field(_vmslots_offset); | |
| 2616 } | |
| 2617 | |
|
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2618 oop java_lang_invoke_MethodTypeForm::erasedType(oop mtform) { |
| 710 | 2619 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
| 2620 return mtform->obj_field(_erasedType_offset); | |
| 2621 } | |
| 2622 | |
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2623 oop java_lang_invoke_MethodTypeForm::genericInvoker(oop mtform) { |
|
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2624 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
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2625 return mtform->obj_field(_genericInvoker_offset); |
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2626 } |
|
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2627 |
| 710 | 2628 |
|
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2629 // Support for java_lang_invoke_CallSite |
|
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2630 |
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2631 int java_lang_invoke_CallSite::_target_offset; |
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2632 |
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2633 void java_lang_invoke_CallSite::compute_offsets() { |
|
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2634 if (!EnableInvokeDynamic) return; |
|
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2635 klassOop k = SystemDictionary::CallSite_klass(); |
|
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2636 if (k != NULL) { |
|
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2637 compute_offset(_target_offset, k, vmSymbols::target_name(), vmSymbols::java_lang_invoke_MethodHandle_signature()); |
|
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2638 } |
|
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2639 } |
|
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2640 |
|
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2641 oop java_lang_invoke_CallSite::target(oop site) { |
|
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2642 return site->obj_field(_target_offset); |
|
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2643 } |
|
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2644 |
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2645 void java_lang_invoke_CallSite::set_target(oop site, oop target) { |
|
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2646 site->obj_field_put(_target_offset, target); |
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2647 } |
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2648 |
| 710 | 2649 |
| 0 | 2650 // Support for java_security_AccessControlContext |
| 2651 | |
| 2652 int java_security_AccessControlContext::_context_offset = 0; | |
| 2653 int java_security_AccessControlContext::_privilegedContext_offset = 0; | |
| 2654 int java_security_AccessControlContext::_isPrivileged_offset = 0; | |
| 2655 | |
| 2656 void java_security_AccessControlContext::compute_offsets() { | |
| 2657 assert(_isPrivileged_offset == 0, "offsets should be initialized only once"); | |
| 2658 fieldDescriptor fd; | |
| 2659 instanceKlass* ik = instanceKlass::cast(SystemDictionary::AccessControlContext_klass()); | |
| 2660 | |
| 2661 if (!ik->find_local_field(vmSymbols::context_name(), vmSymbols::protectiondomain_signature(), &fd)) { | |
| 2662 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2663 } | |
| 2664 _context_offset = fd.offset(); | |
| 2665 | |
| 2666 if (!ik->find_local_field(vmSymbols::privilegedContext_name(), vmSymbols::accesscontrolcontext_signature(), &fd)) { | |
| 2667 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2668 } | |
| 2669 _privilegedContext_offset = fd.offset(); | |
| 2670 | |
| 2671 if (!ik->find_local_field(vmSymbols::isPrivileged_name(), vmSymbols::bool_signature(), &fd)) { | |
| 2672 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2673 } | |
| 2674 _isPrivileged_offset = fd.offset(); | |
| 2675 } | |
| 2676 | |
| 2677 | |
| 2678 oop java_security_AccessControlContext::create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS) { | |
| 2679 assert(_isPrivileged_offset != 0, "offsets should have been initialized"); | |
| 2680 // Ensure klass is initialized | |
| 2681 instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->initialize(CHECK_0); | |
| 2682 // Allocate result | |
| 2683 oop result = instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->allocate_instance(CHECK_0); | |
| 2684 // Fill in values | |
| 2685 result->obj_field_put(_context_offset, context()); | |
| 2686 result->obj_field_put(_privilegedContext_offset, privileged_context()); | |
| 2687 result->bool_field_put(_isPrivileged_offset, isPrivileged); | |
| 2688 return result; | |
| 2689 } | |
| 2690 | |
| 2691 | |
| 2692 // Support for java_lang_ClassLoader | |
| 2693 | |
| 2694 oop java_lang_ClassLoader::parent(oop loader) { | |
| 2695 assert(loader->is_oop(), "loader must be oop"); | |
| 2696 return loader->obj_field(parent_offset); | |
| 2697 } | |
| 2698 | |
| 2699 | |
| 2700 bool java_lang_ClassLoader::is_trusted_loader(oop loader) { | |
| 2701 // Fix for 4474172; see evaluation for more details | |
| 2702 loader = non_reflection_class_loader(loader); | |
| 2703 | |
| 2704 oop cl = SystemDictionary::java_system_loader(); | |
| 2705 while(cl != NULL) { | |
| 2706 if (cl == loader) return true; | |
| 2707 cl = parent(cl); | |
| 2708 } | |
| 2709 return false; | |
| 2710 } | |
| 2711 | |
| 2712 oop java_lang_ClassLoader::non_reflection_class_loader(oop loader) { | |
| 2713 if (loader != NULL) { | |
| 2714 // See whether this is one of the class loaders associated with | |
| 2715 // the generated bytecodes for reflection, and if so, "magically" | |
| 2716 // delegate to its parent to prevent class loading from occurring | |
| 2717 // in places where applications using reflection didn't expect it. | |
| 1142 | 2718 klassOop delegating_cl_class = SystemDictionary::reflect_DelegatingClassLoader_klass(); |
| 0 | 2719 // This might be null in non-1.4 JDKs |
| 2720 if (delegating_cl_class != NULL && loader->is_a(delegating_cl_class)) { | |
| 2721 return parent(loader); | |
| 2722 } | |
| 2723 } | |
| 2724 return loader; | |
| 2725 } | |
| 2726 | |
| 2727 | |
| 2728 // Support for java_lang_System | |
| 2729 int java_lang_System::in_offset_in_bytes() { | |
|
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2730 return (instanceMirrorKlass::offset_of_static_fields() + static_in_offset); |
| 0 | 2731 } |
| 2732 | |
| 2733 | |
| 2734 int java_lang_System::out_offset_in_bytes() { | |
|
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2735 return (instanceMirrorKlass::offset_of_static_fields() + static_out_offset); |
| 0 | 2736 } |
| 2737 | |
| 2738 | |
| 2739 int java_lang_System::err_offset_in_bytes() { | |
|
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2740 return (instanceMirrorKlass::offset_of_static_fields() + static_err_offset); |
| 0 | 2741 } |
| 2742 | |
| 2743 | |
| 2744 | |
| 2745 int java_lang_String::value_offset; | |
| 2746 int java_lang_String::offset_offset; | |
| 2747 int java_lang_String::count_offset; | |
| 2748 int java_lang_String::hash_offset; | |
| 2749 int java_lang_Class::klass_offset; | |
| 2750 int java_lang_Class::array_klass_offset; | |
| 2751 int java_lang_Class::resolved_constructor_offset; | |
| 2752 int java_lang_Class::number_of_fake_oop_fields; | |
|
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2753 int java_lang_Class::oop_size_offset; |
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2754 int java_lang_Class::static_oop_field_count_offset; |
| 0 | 2755 int java_lang_Throwable::backtrace_offset; |
| 2756 int java_lang_Throwable::detailMessage_offset; | |
| 2757 int java_lang_Throwable::cause_offset; | |
| 2758 int java_lang_Throwable::stackTrace_offset; | |
| 2759 int java_lang_reflect_AccessibleObject::override_offset; | |
| 2760 int java_lang_reflect_Method::clazz_offset; | |
| 2761 int java_lang_reflect_Method::name_offset; | |
| 2762 int java_lang_reflect_Method::returnType_offset; | |
| 2763 int java_lang_reflect_Method::parameterTypes_offset; | |
| 2764 int java_lang_reflect_Method::exceptionTypes_offset; | |
| 2765 int java_lang_reflect_Method::slot_offset; | |
| 2766 int java_lang_reflect_Method::modifiers_offset; | |
| 2767 int java_lang_reflect_Method::signature_offset; | |
| 2768 int java_lang_reflect_Method::annotations_offset; | |
| 2769 int java_lang_reflect_Method::parameter_annotations_offset; | |
| 2770 int java_lang_reflect_Method::annotation_default_offset; | |
| 2771 int java_lang_reflect_Constructor::clazz_offset; | |
| 2772 int java_lang_reflect_Constructor::parameterTypes_offset; | |
| 2773 int java_lang_reflect_Constructor::exceptionTypes_offset; | |
| 2774 int java_lang_reflect_Constructor::slot_offset; | |
| 2775 int java_lang_reflect_Constructor::modifiers_offset; | |
| 2776 int java_lang_reflect_Constructor::signature_offset; | |
| 2777 int java_lang_reflect_Constructor::annotations_offset; | |
| 2778 int java_lang_reflect_Constructor::parameter_annotations_offset; | |
| 2779 int java_lang_reflect_Field::clazz_offset; | |
| 2780 int java_lang_reflect_Field::name_offset; | |
| 2781 int java_lang_reflect_Field::type_offset; | |
| 2782 int java_lang_reflect_Field::slot_offset; | |
| 2783 int java_lang_reflect_Field::modifiers_offset; | |
| 2784 int java_lang_reflect_Field::signature_offset; | |
| 2785 int java_lang_reflect_Field::annotations_offset; | |
| 2786 int java_lang_boxing_object::value_offset; | |
|
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2787 int java_lang_boxing_object::long_value_offset; |
| 0 | 2788 int java_lang_ref_Reference::referent_offset; |
| 2789 int java_lang_ref_Reference::queue_offset; | |
| 2790 int java_lang_ref_Reference::next_offset; | |
| 2791 int java_lang_ref_Reference::discovered_offset; | |
| 2792 int java_lang_ref_Reference::static_lock_offset; | |
| 2793 int java_lang_ref_Reference::static_pending_offset; | |
| 2794 int java_lang_ref_Reference::number_of_fake_oop_fields; | |
| 2795 int java_lang_ref_SoftReference::timestamp_offset; | |
| 2796 int java_lang_ref_SoftReference::static_clock_offset; | |
| 2797 int java_lang_ClassLoader::parent_offset; | |
| 2798 int java_lang_System::static_in_offset; | |
| 2799 int java_lang_System::static_out_offset; | |
| 2800 int java_lang_System::static_err_offset; | |
| 2801 int java_lang_StackTraceElement::declaringClass_offset; | |
| 2802 int java_lang_StackTraceElement::methodName_offset; | |
| 2803 int java_lang_StackTraceElement::fileName_offset; | |
| 2804 int java_lang_StackTraceElement::lineNumber_offset; | |
| 2805 int java_lang_AssertionStatusDirectives::classes_offset; | |
| 2806 int java_lang_AssertionStatusDirectives::classEnabled_offset; | |
| 2807 int java_lang_AssertionStatusDirectives::packages_offset; | |
| 2808 int java_lang_AssertionStatusDirectives::packageEnabled_offset; | |
| 2809 int java_lang_AssertionStatusDirectives::deflt_offset; | |
| 2810 int java_nio_Buffer::_limit_offset; | |
| 2811 int sun_misc_AtomicLongCSImpl::_value_offset; | |
| 2812 int java_util_concurrent_locks_AbstractOwnableSynchronizer::_owner_offset = 0; | |
| 2813 int sun_reflect_ConstantPool::_cp_oop_offset; | |
| 2814 int sun_reflect_UnsafeStaticFieldAccessorImpl::_base_offset; | |
| 2815 | |
| 2816 | |
| 2817 // Support for java_lang_StackTraceElement | |
| 2818 | |
| 2819 void java_lang_StackTraceElement::set_fileName(oop element, oop value) { | |
| 2820 element->obj_field_put(fileName_offset, value); | |
| 2821 } | |
| 2822 | |
| 2823 void java_lang_StackTraceElement::set_declaringClass(oop element, oop value) { | |
| 2824 element->obj_field_put(declaringClass_offset, value); | |
| 2825 } | |
| 2826 | |
| 2827 void java_lang_StackTraceElement::set_methodName(oop element, oop value) { | |
| 2828 element->obj_field_put(methodName_offset, value); | |
| 2829 } | |
| 2830 | |
| 2831 void java_lang_StackTraceElement::set_lineNumber(oop element, int value) { | |
| 2832 element->int_field_put(lineNumber_offset, value); | |
| 2833 } | |
| 2834 | |
| 2835 | |
| 2836 // Support for java Assertions - java_lang_AssertionStatusDirectives. | |
| 2837 | |
| 2838 void java_lang_AssertionStatusDirectives::set_classes(oop o, oop val) { | |
| 2839 o->obj_field_put(classes_offset, val); | |
| 2840 } | |
| 2841 | |
| 2842 void java_lang_AssertionStatusDirectives::set_classEnabled(oop o, oop val) { | |
| 2843 o->obj_field_put(classEnabled_offset, val); | |
| 2844 } | |
| 2845 | |
| 2846 void java_lang_AssertionStatusDirectives::set_packages(oop o, oop val) { | |
| 2847 o->obj_field_put(packages_offset, val); | |
| 2848 } | |
| 2849 | |
| 2850 void java_lang_AssertionStatusDirectives::set_packageEnabled(oop o, oop val) { | |
| 2851 o->obj_field_put(packageEnabled_offset, val); | |
| 2852 } | |
| 2853 | |
| 2854 void java_lang_AssertionStatusDirectives::set_deflt(oop o, bool val) { | |
| 2855 o->bool_field_put(deflt_offset, val); | |
| 2856 } | |
| 2857 | |
| 2858 | |
| 2859 // Support for intrinsification of java.nio.Buffer.checkIndex | |
| 2860 int java_nio_Buffer::limit_offset() { | |
| 2861 return _limit_offset; | |
| 2862 } | |
| 2863 | |
| 2864 | |
| 2865 void java_nio_Buffer::compute_offsets() { | |
| 2866 klassOop k = SystemDictionary::java_nio_Buffer_klass(); | |
|
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2867 assert(k != NULL, "must be loaded in 1.4+"); |
|
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|
2868 compute_offset(_limit_offset, k, vmSymbols::limit_name(), vmSymbols::int_signature()); |
| 0 | 2869 } |
| 2870 | |
| 2871 // Support for intrinsification of sun.misc.AtomicLongCSImpl.attemptUpdate | |
| 2872 int sun_misc_AtomicLongCSImpl::value_offset() { | |
| 2873 assert(SystemDictionary::sun_misc_AtomicLongCSImpl_klass() != NULL, "can't call this"); | |
| 2874 return _value_offset; | |
| 2875 } | |
| 2876 | |
| 2877 | |
| 2878 void sun_misc_AtomicLongCSImpl::compute_offsets() { | |
| 2879 klassOop k = SystemDictionary::sun_misc_AtomicLongCSImpl_klass(); | |
| 2880 // If this class is not present, its value field offset won't be referenced. | |
| 2881 if (k != NULL) { | |
|
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|
2882 compute_offset(_value_offset, k, vmSymbols::value_name(), vmSymbols::long_signature()); |
| 0 | 2883 } |
| 2884 } | |
| 2885 | |
| 2886 void java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(TRAPS) { | |
| 2887 if (_owner_offset != 0) return; | |
| 2888 | |
| 2889 assert(JDK_Version::is_gte_jdk16x_version(), "Must be JDK 1.6 or later"); | |
| 2890 SystemDictionary::load_abstract_ownable_synchronizer_klass(CHECK); | |
| 2891 klassOop k = SystemDictionary::abstract_ownable_synchronizer_klass(); | |
|
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2892 compute_offset(_owner_offset, k, |
| 0 | 2893 vmSymbols::exclusive_owner_thread_name(), vmSymbols::thread_signature()); |
| 2894 } | |
| 2895 | |
| 2896 oop java_util_concurrent_locks_AbstractOwnableSynchronizer::get_owner_threadObj(oop obj) { | |
| 2897 assert(_owner_offset != 0, "Must be initialized"); | |
| 2898 return obj->obj_field(_owner_offset); | |
| 2899 } | |
| 2900 | |
| 2901 // Compute hard-coded offsets | |
| 2902 // Invoked before SystemDictionary::initialize, so pre-loaded classes | |
| 2903 // are not available to determine the offset_of_static_fields. | |
| 2904 void JavaClasses::compute_hard_coded_offsets() { | |
|
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2905 const int x = heapOopSize; |
|
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2906 const int header = instanceOopDesc::base_offset_in_bytes(); |
| 0 | 2907 |
| 2908 // Do the String Class | |
| 2909 java_lang_String::value_offset = java_lang_String::hc_value_offset * x + header; | |
| 2910 java_lang_String::offset_offset = java_lang_String::hc_offset_offset * x + header; | |
| 2911 java_lang_String::count_offset = java_lang_String::offset_offset + sizeof (jint); | |
| 2912 java_lang_String::hash_offset = java_lang_String::count_offset + sizeof (jint); | |
| 2913 | |
|
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2914 { |
|
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2915 // Do the Class Class |
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2916 int offset = header; |
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2917 java_lang_Class::oop_size_offset = header; |
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2918 offset += BytesPerInt; |
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2919 java_lang_Class::static_oop_field_count_offset = offset; |
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2920 offset = align_size_up(offset + BytesPerInt, x); |
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2921 java_lang_Class::klass_offset = offset; |
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2922 offset += x; |
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2923 java_lang_Class::array_klass_offset = offset; |
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2924 offset += x; |
|
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2925 java_lang_Class::resolved_constructor_offset = offset; |
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parents:
2357
diff
changeset
|
2926 } |
| 0 | 2927 |
| 2928 // This is NOT an offset | |
| 2929 java_lang_Class::number_of_fake_oop_fields = java_lang_Class::hc_number_of_fake_oop_fields; | |
| 2930 | |
| 2931 // Throwable Class | |
| 2932 java_lang_Throwable::backtrace_offset = java_lang_Throwable::hc_backtrace_offset * x + header; | |
| 2933 java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header; | |
| 2934 java_lang_Throwable::cause_offset = java_lang_Throwable::hc_cause_offset * x + header; | |
| 2935 java_lang_Throwable::stackTrace_offset = java_lang_Throwable::hc_stackTrace_offset * x + header; | |
| 2936 | |
| 2937 // java_lang_boxing_object | |
|
165
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|
2938 java_lang_boxing_object::value_offset = java_lang_boxing_object::hc_value_offset + header; |
|
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|
2939 java_lang_boxing_object::long_value_offset = align_size_up((java_lang_boxing_object::hc_value_offset + header), BytesPerLong); |
| 0 | 2940 |
| 2941 // java_lang_ref_Reference: | |
| 2942 java_lang_ref_Reference::referent_offset = java_lang_ref_Reference::hc_referent_offset * x + header; | |
| 2943 java_lang_ref_Reference::queue_offset = java_lang_ref_Reference::hc_queue_offset * x + header; | |
| 2944 java_lang_ref_Reference::next_offset = java_lang_ref_Reference::hc_next_offset * x + header; | |
| 2945 java_lang_ref_Reference::discovered_offset = java_lang_ref_Reference::hc_discovered_offset * x + header; | |
| 2946 java_lang_ref_Reference::static_lock_offset = java_lang_ref_Reference::hc_static_lock_offset * x; | |
| 2947 java_lang_ref_Reference::static_pending_offset = java_lang_ref_Reference::hc_static_pending_offset * x; | |
| 2948 // Artificial fields for java_lang_ref_Reference | |
| 2949 // The first field is for the discovered field added in 1.4 | |
| 2950 java_lang_ref_Reference::number_of_fake_oop_fields = 1; | |
| 2951 | |
| 2952 // java_lang_ref_SoftReference Class | |
|
165
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|
2953 java_lang_ref_SoftReference::timestamp_offset = align_size_up((java_lang_ref_SoftReference::hc_timestamp_offset * x + header), BytesPerLong); |
| 0 | 2954 // Don't multiply static fields because they are always in wordSize units |
| 2955 java_lang_ref_SoftReference::static_clock_offset = java_lang_ref_SoftReference::hc_static_clock_offset * x; | |
| 2956 | |
| 2957 // java_lang_ClassLoader | |
| 2958 java_lang_ClassLoader::parent_offset = java_lang_ClassLoader::hc_parent_offset * x + header; | |
| 2959 | |
| 2960 // java_lang_System | |
| 2961 java_lang_System::static_in_offset = java_lang_System::hc_static_in_offset * x; | |
| 2962 java_lang_System::static_out_offset = java_lang_System::hc_static_out_offset * x; | |
| 2963 java_lang_System::static_err_offset = java_lang_System::hc_static_err_offset * x; | |
| 2964 | |
| 2965 // java_lang_StackTraceElement | |
| 2966 java_lang_StackTraceElement::declaringClass_offset = java_lang_StackTraceElement::hc_declaringClass_offset * x + header; | |
| 2967 java_lang_StackTraceElement::methodName_offset = java_lang_StackTraceElement::hc_methodName_offset * x + header; | |
| 2968 java_lang_StackTraceElement::fileName_offset = java_lang_StackTraceElement::hc_fileName_offset * x + header; | |
| 2969 java_lang_StackTraceElement::lineNumber_offset = java_lang_StackTraceElement::hc_lineNumber_offset * x + header; | |
| 2970 java_lang_AssertionStatusDirectives::classes_offset = java_lang_AssertionStatusDirectives::hc_classes_offset * x + header; | |
| 2971 java_lang_AssertionStatusDirectives::classEnabled_offset = java_lang_AssertionStatusDirectives::hc_classEnabled_offset * x + header; | |
| 2972 java_lang_AssertionStatusDirectives::packages_offset = java_lang_AssertionStatusDirectives::hc_packages_offset * x + header; | |
| 2973 java_lang_AssertionStatusDirectives::packageEnabled_offset = java_lang_AssertionStatusDirectives::hc_packageEnabled_offset * x + header; | |
| 2974 java_lang_AssertionStatusDirectives::deflt_offset = java_lang_AssertionStatusDirectives::hc_deflt_offset * x + header; | |
| 2975 | |
| 2976 } | |
| 2977 | |
| 2978 | |
| 2979 // Compute non-hard-coded field offsets of all the classes in this file | |
| 2980 void JavaClasses::compute_offsets() { | |
| 2981 | |
| 2982 java_lang_Class::compute_offsets(); | |
| 2983 java_lang_Thread::compute_offsets(); | |
| 2984 java_lang_ThreadGroup::compute_offsets(); | |
| 710 | 2985 if (EnableMethodHandles) { |
|
2357
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7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
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|
2986 java_lang_invoke_MethodHandle::compute_offsets(); |
|
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7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
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|
2987 java_lang_invoke_MemberName::compute_offsets(); |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
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|
2988 java_lang_invoke_DirectMethodHandle::compute_offsets(); |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2989 java_lang_invoke_BoundMethodHandle::compute_offsets(); |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2990 java_lang_invoke_AdapterMethodHandle::compute_offsets(); |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2991 java_lang_invoke_MethodType::compute_offsets(); |
|
8033953d67ff
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jrose
parents:
2356
diff
changeset
|
2992 java_lang_invoke_MethodTypeForm::compute_offsets(); |
| 710 | 2993 } |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2994 if (EnableInvokeDynamic) { |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2995 java_lang_invoke_CallSite::compute_offsets(); |
|
726
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6655646: dynamic languages need dynamically linked call sites
jrose
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|
2996 } |
| 0 | 2997 java_security_AccessControlContext::compute_offsets(); |
| 2998 // Initialize reflection classes. The layouts of these classes | |
| 2999 // changed with the new reflection implementation in JDK 1.4, and | |
| 3000 // since the Universe doesn't know what JDK version it is until this | |
| 3001 // point we defer computation of these offsets until now. | |
| 3002 java_lang_reflect_AccessibleObject::compute_offsets(); | |
| 3003 java_lang_reflect_Method::compute_offsets(); | |
| 3004 java_lang_reflect_Constructor::compute_offsets(); | |
| 3005 java_lang_reflect_Field::compute_offsets(); | |
| 3006 if (JDK_Version::is_gte_jdk14x_version()) { | |
| 3007 java_nio_Buffer::compute_offsets(); | |
| 3008 } | |
| 3009 if (JDK_Version::is_gte_jdk15x_version()) { | |
| 3010 sun_reflect_ConstantPool::compute_offsets(); | |
| 3011 sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets(); | |
| 3012 } | |
| 3013 sun_misc_AtomicLongCSImpl::compute_offsets(); | |
| 710 | 3014 |
| 3015 // generated interpreter code wants to know about the offsets we just computed: | |
| 3016 AbstractAssembler::update_delayed_values(); | |
| 0 | 3017 } |
| 3018 | |
| 3019 #ifndef PRODUCT | |
| 3020 | |
| 3021 // These functions exist to assert the validity of hard-coded field offsets to guard | |
| 3022 // against changes in the class files | |
| 3023 | |
| 3024 bool JavaClasses::check_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
| 3025 EXCEPTION_MARK; | |
| 3026 fieldDescriptor fd; | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3027 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
| 0 | 3028 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
| 3029 instanceKlassHandle h_klass (THREAD, k); | |
|
2177
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1989
diff
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|
3030 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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1989
diff
changeset
|
3031 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
|
3582bf76420e
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diff
changeset
|
3032 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
| 0 | 3033 tty->print_cr("Nonstatic field %s.%s not found", klass_name, field_name); |
| 3034 return false; | |
| 3035 } | |
| 3036 if (fd.is_static()) { | |
| 3037 tty->print_cr("Nonstatic field %s.%s appears to be static", klass_name, field_name); | |
| 3038 return false; | |
| 3039 } | |
| 3040 if (fd.offset() == hardcoded_offset ) { | |
| 3041 return true; | |
| 3042 } else { | |
| 3043 tty->print_cr("Offset of nonstatic field %s.%s is hardcoded as %d but should really be %d.", | |
| 3044 klass_name, field_name, hardcoded_offset, fd.offset()); | |
| 3045 return false; | |
| 3046 } | |
| 3047 } | |
| 3048 | |
| 3049 | |
| 3050 bool JavaClasses::check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
| 3051 EXCEPTION_MARK; | |
| 3052 fieldDescriptor fd; | |
|
2177
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1989
diff
changeset
|
3053 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
| 0 | 3054 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
| 3055 instanceKlassHandle h_klass (THREAD, k); | |
|
2177
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diff
changeset
|
3056 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3057 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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1989
diff
changeset
|
3058 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
| 0 | 3059 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
| 3060 return false; | |
| 3061 } | |
| 3062 if (!fd.is_static()) { | |
| 3063 tty->print_cr("Static field %s.%s appears to be nonstatic", klass_name, field_name); | |
| 3064 return false; | |
| 3065 } | |
|
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
3066 if (fd.offset() == hardcoded_offset + instanceMirrorKlass::offset_of_static_fields()) { |
| 0 | 3067 return true; |
| 3068 } else { | |
|
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
3069 tty->print_cr("Offset of static field %s.%s is hardcoded as %d but should really be %d.", klass_name, field_name, hardcoded_offset, fd.offset() - instanceMirrorKlass::offset_of_static_fields()); |
| 0 | 3070 return false; |
| 3071 } | |
| 3072 } | |
| 3073 | |
| 3074 | |
|
132
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jrose
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|
3075 bool JavaClasses::check_constant(const char *klass_name, int hardcoded_constant, const char *field_name, const char* field_sig) { |
|
60b728ec77c1
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jrose
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|
3076 EXCEPTION_MARK; |
|
60b728ec77c1
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jrose
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|
3077 fieldDescriptor fd; |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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1989
diff
changeset
|
3078 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
|
132
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|
3079 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
|
60b728ec77c1
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jrose
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|
3080 instanceKlassHandle h_klass (THREAD, k); |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3081 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3082 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3083 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
|
132
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jrose
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113
diff
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|
3084 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3085 return false; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3086 } |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3087 if (!fd.is_static() || !fd.has_initial_value()) { |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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113
diff
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|
3088 tty->print_cr("Static field %s.%s appears to be non-constant", klass_name, field_name); |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3089 return false; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3090 } |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3091 if (!fd.initial_value_tag().is_int()) { |
|
60b728ec77c1
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jrose
parents:
113
diff
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|
3092 tty->print_cr("Static field %s.%s is not an int", klass_name, field_name); |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
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|
3093 return false; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3094 } |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3095 jint field_value = fd.int_initial_value(); |
|
60b728ec77c1
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jrose
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113
diff
changeset
|
3096 if (field_value == hardcoded_constant) { |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3097 return true; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3098 } else { |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3099 tty->print_cr("Constant value of static field %s.%s is hardcoded as %d but should really be %d.", klass_name, field_name, hardcoded_constant, field_value); |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3100 return false; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3101 } |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3102 } |
|
60b728ec77c1
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jrose
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113
diff
changeset
|
3103 |
|
60b728ec77c1
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|
3104 |
| 0 | 3105 // Check the hard-coded field offsets of all the classes in this file |
| 3106 | |
| 3107 void JavaClasses::check_offsets() { | |
| 3108 bool valid = true; | |
| 3109 | |
| 3110 #define CHECK_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ | |
| 3111 valid &= check_offset(klass_name, cpp_klass_name :: field_name ## _offset, #field_name, field_sig) | |
| 3112 | |
|
165
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kvn
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132
diff
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|
3113 #define CHECK_LONG_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
|
437d03ea40b1
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kvn
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132
diff
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|
3114 valid &= check_offset(klass_name, cpp_klass_name :: long_ ## field_name ## _offset, #field_name, field_sig) |
|
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132
diff
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|
3115 |
| 0 | 3116 #define CHECK_STATIC_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
| 3117 valid &= check_static_offset(klass_name, cpp_klass_name :: static_ ## field_name ## _offset, #field_name, field_sig) | |
| 3118 | |
|
132
60b728ec77c1
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jrose
parents:
113
diff
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|
3119 #define CHECK_CONSTANT(klass_name, cpp_klass_name, field_name, field_sig) \ |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3120 valid &= check_constant(klass_name, cpp_klass_name :: field_name, #field_name, field_sig) |
|
60b728ec77c1
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|
3121 |
| 0 | 3122 // java.lang.String |
| 3123 | |
| 3124 CHECK_OFFSET("java/lang/String", java_lang_String, value, "[C"); | |
| 3125 CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I"); | |
| 3126 CHECK_OFFSET("java/lang/String", java_lang_String, count, "I"); | |
| 3127 CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I"); | |
| 3128 | |
| 3129 // java.lang.Class | |
| 3130 | |
| 3131 // Fake fields | |
| 3132 // CHECK_OFFSET("java/lang/Class", java_lang_Class, klass); // %%% this needs to be checked | |
| 3133 // CHECK_OFFSET("java/lang/Class", java_lang_Class, array_klass); // %%% this needs to be checked | |
| 3134 // CHECK_OFFSET("java/lang/Class", java_lang_Class, resolved_constructor); // %%% this needs to be checked | |
| 3135 | |
| 3136 // java.lang.Throwable | |
| 3137 | |
| 3138 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, backtrace, "Ljava/lang/Object;"); | |
| 3139 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, detailMessage, "Ljava/lang/String;"); | |
| 3140 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, cause, "Ljava/lang/Throwable;"); | |
| 3141 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, stackTrace, "[Ljava/lang/StackTraceElement;"); | |
| 3142 | |
| 3143 // Boxed primitive objects (java_lang_boxing_object) | |
| 3144 | |
| 3145 CHECK_OFFSET("java/lang/Boolean", java_lang_boxing_object, value, "Z"); | |
| 3146 CHECK_OFFSET("java/lang/Character", java_lang_boxing_object, value, "C"); | |
| 3147 CHECK_OFFSET("java/lang/Float", java_lang_boxing_object, value, "F"); | |
|
165
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diff
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|
3148 CHECK_LONG_OFFSET("java/lang/Double", java_lang_boxing_object, value, "D"); |
| 0 | 3149 CHECK_OFFSET("java/lang/Byte", java_lang_boxing_object, value, "B"); |
| 3150 CHECK_OFFSET("java/lang/Short", java_lang_boxing_object, value, "S"); | |
| 3151 CHECK_OFFSET("java/lang/Integer", java_lang_boxing_object, value, "I"); | |
|
165
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diff
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|
3152 CHECK_LONG_OFFSET("java/lang/Long", java_lang_boxing_object, value, "J"); |
| 0 | 3153 |
| 3154 // java.lang.ClassLoader | |
| 3155 | |
| 3156 CHECK_OFFSET("java/lang/ClassLoader", java_lang_ClassLoader, parent, "Ljava/lang/ClassLoader;"); | |
| 3157 | |
| 3158 // java.lang.System | |
| 3159 | |
| 3160 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, in, "Ljava/io/InputStream;"); | |
| 3161 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, out, "Ljava/io/PrintStream;"); | |
| 3162 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, err, "Ljava/io/PrintStream;"); | |
| 3163 | |
| 3164 // java.lang.StackTraceElement | |
| 3165 | |
| 3166 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClass, "Ljava/lang/String;"); | |
| 3167 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, methodName, "Ljava/lang/String;"); | |
| 3168 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, fileName, "Ljava/lang/String;"); | |
| 3169 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, lineNumber, "I"); | |
| 3170 | |
| 3171 // java.lang.ref.Reference | |
| 3172 | |
| 3173 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, referent, "Ljava/lang/Object;"); | |
| 3174 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, queue, "Ljava/lang/ref/ReferenceQueue;"); | |
| 3175 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, next, "Ljava/lang/ref/Reference;"); | |
| 3176 // Fake field | |
| 3177 //CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, discovered, "Ljava/lang/ref/Reference;"); | |
| 3178 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, lock, "Ljava/lang/ref/Reference$Lock;"); | |
| 3179 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, pending, "Ljava/lang/ref/Reference;"); | |
| 3180 | |
| 3181 // java.lang.ref.SoftReference | |
| 3182 | |
| 3183 CHECK_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, timestamp, "J"); | |
| 3184 CHECK_STATIC_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, clock, "J"); | |
| 3185 | |
| 3186 // java.lang.AssertionStatusDirectives | |
| 3187 // | |
| 3188 // The CheckAssertionStatusDirectives boolean can be removed from here and | |
| 3189 // globals.hpp after the AssertionStatusDirectives class has been integrated | |
| 3190 // into merlin "for some time." Without it, the vm will fail with early | |
| 3191 // merlin builds. | |
| 3192 | |
| 3193 if (CheckAssertionStatusDirectives && JDK_Version::is_gte_jdk14x_version()) { | |
| 3194 const char* nm = "java/lang/AssertionStatusDirectives"; | |
| 3195 const char* sig = "[Ljava/lang/String;"; | |
| 3196 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classes, sig); | |
| 3197 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classEnabled, "[Z"); | |
| 3198 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packages, sig); | |
| 3199 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packageEnabled, "[Z"); | |
| 3200 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, deflt, "Z"); | |
| 3201 } | |
| 3202 | |
| 3203 if (!valid) vm_exit_during_initialization("Hard-coded field offset verification failed"); | |
| 3204 } | |
| 3205 | |
| 3206 #endif // PRODUCT | |
| 3207 | |
| 3208 void javaClasses_init() { | |
| 3209 JavaClasses::compute_offsets(); | |
| 3210 JavaClasses::check_offsets(); | |
| 3211 FilteredFieldsMap::initialize(); // must be done after computing offsets. | |
| 3212 } |