Mercurial > hg > truffle
annotate src/share/vm/classfile/javaClasses.cpp @ 2476:6a615eae2f34
7034585: Adjust fillInStackTrace filtering to assist 6998871
Summary: Allow for one or more fillInStackTrace frames to be skipped
Reviewed-by: mchung, kvn
| author | dholmes |
|---|---|
| date | Tue, 12 Apr 2011 02:53:06 -0400 |
| parents | b099aaf51bf8 |
| children | 3449f5e02cc4 |
| 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 | |
|
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1447 assert(st_method() == method && st.bci() == bci, |
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1448 "Wrong stack trace"); |
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1449 st.next(); |
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1450 // vframeStream::method isn't GC-safe so store off a copy |
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1451 // of the methodOop in case we GC. |
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1452 if (!st.at_end()) { |
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1453 st_method = st.method(); |
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1454 } |
| 0 | 1455 #endif |
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1456 |
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1457 // the format of the stacktrace will be: |
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1458 // - 1 or more fillInStackTrace frames for the exception class (skipped) |
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1459 // - 0 or more <init> methods for the exception class (skipped) |
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1460 // - rest of the stack |
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1461 |
| 0 | 1462 if (!skip_fillInStackTrace_check) { |
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1463 if ((method->name() == vmSymbols::fillInStackTrace_name() || |
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1464 method->name() == vmSymbols::fillInStackTrace0_name()) && |
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1465 throwable->is_a(method->method_holder())) { |
| 0 | 1466 continue; |
| 1467 } | |
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1468 else { |
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1469 skip_fillInStackTrace_check = true; // gone past them all |
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1470 } |
| 0 | 1471 } |
| 1472 if (!skip_throwableInit_check) { | |
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1473 assert(skip_fillInStackTrace_check, "logic error in backtrace filtering"); |
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1474 |
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1475 // skip <init> methods of the exception class and superclasses |
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1476 // This is simlar to classic VM. |
| 0 | 1477 if (method->name() == vmSymbols::object_initializer_name() && |
| 1478 throwable->is_a(method->method_holder())) { | |
| 1479 continue; | |
| 1480 } else { | |
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1481 // there are none or we've seen them all - either way stop checking |
| 0 | 1482 skip_throwableInit_check = true; |
| 1483 } | |
| 1484 } | |
| 1485 bt.push(method, bci, CHECK); | |
| 1486 total_count++; | |
| 1487 } | |
| 1488 | |
| 1489 // Put completed stack trace into throwable object | |
| 1490 set_backtrace(throwable(), bt.backtrace()); | |
| 1491 } | |
| 1492 | |
| 1493 void java_lang_Throwable::fill_in_stack_trace(Handle throwable) { | |
| 1494 // No-op if stack trace is disabled | |
| 1495 if (!StackTraceInThrowable) { | |
| 1496 return; | |
| 1497 } | |
| 1498 | |
| 1499 // Disable stack traces for some preallocated out of memory errors | |
| 1500 if (!Universe::should_fill_in_stack_trace(throwable)) { | |
| 1501 return; | |
| 1502 } | |
| 1503 | |
| 1504 PRESERVE_EXCEPTION_MARK; | |
| 1505 | |
| 1506 JavaThread* thread = JavaThread::active(); | |
| 1507 fill_in_stack_trace(throwable, thread); | |
| 1508 // ignore exceptions thrown during stack trace filling | |
| 1509 CLEAR_PENDING_EXCEPTION; | |
| 1510 } | |
| 1511 | |
| 1512 void java_lang_Throwable::allocate_backtrace(Handle throwable, TRAPS) { | |
| 1513 // Allocate stack trace - backtrace is created but not filled in | |
| 1514 | |
| 1515 // No-op if stack trace is disabled | |
| 1516 if (!StackTraceInThrowable) return; | |
| 1517 | |
| 1518 objArrayOop h_oop = oopFactory::new_objectArray(trace_size, CHECK); | |
| 1519 objArrayHandle backtrace (THREAD, h_oop); | |
| 1520 objArrayOop m_oop = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
| 1521 objArrayHandle methods (THREAD, m_oop); | |
| 1522 typeArrayOop b = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
| 1523 typeArrayHandle bcis(THREAD, b); | |
| 1524 | |
| 1525 // backtrace has space for one chunk (next is NULL) | |
| 1526 backtrace->obj_at_put(trace_methods_offset, methods()); | |
| 1527 backtrace->obj_at_put(trace_bcis_offset, bcis()); | |
| 1528 set_backtrace(throwable(), backtrace()); | |
| 1529 } | |
| 1530 | |
| 1531 | |
| 1532 void java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(Handle throwable) { | |
| 1533 // Fill in stack trace into preallocated backtrace (no GC) | |
| 1534 | |
| 1535 // No-op if stack trace is disabled | |
| 1536 if (!StackTraceInThrowable) return; | |
| 1537 | |
| 1142 | 1538 assert(throwable->is_a(SystemDictionary::Throwable_klass()), "sanity check"); |
| 0 | 1539 |
| 1540 oop backtrace = java_lang_Throwable::backtrace(throwable()); | |
| 1541 assert(backtrace != NULL, "backtrace not preallocated"); | |
| 1542 | |
| 1543 oop m = objArrayOop(backtrace)->obj_at(trace_methods_offset); | |
| 1544 objArrayOop methods = objArrayOop(m); | |
| 1545 assert(methods != NULL && methods->length() > 0, "method array not preallocated"); | |
| 1546 | |
| 1547 oop b = objArrayOop(backtrace)->obj_at(trace_bcis_offset); | |
| 1548 typeArrayOop bcis = typeArrayOop(b); | |
| 1549 assert(bcis != NULL, "bci array not preallocated"); | |
| 1550 | |
| 1551 assert(methods->length() == bcis->length(), "method and bci arrays should match"); | |
| 1552 | |
| 1553 JavaThread* thread = JavaThread::current(); | |
| 1554 ResourceMark rm(thread); | |
| 1555 vframeStream st(thread); | |
| 1556 | |
| 1557 // Unlike fill_in_stack_trace we do not skip fillInStackTrace or throwable init | |
| 1558 // methods as preallocated errors aren't created by "java" code. | |
| 1559 | |
| 1560 // fill in as much stack trace as possible | |
| 1561 int max_chunks = MIN2(methods->length(), (int)MaxJavaStackTraceDepth); | |
| 1562 int chunk_count = 0; | |
| 1563 | |
| 1564 for (;!st.at_end(); st.next()) { | |
| 1565 // add element | |
| 1566 bcis->ushort_at_put(chunk_count, st.bci()); | |
| 1567 methods->obj_at_put(chunk_count, st.method()); | |
| 1568 | |
| 1569 chunk_count++; | |
| 1570 | |
| 1571 // Bail-out for deep stacks | |
| 1572 if (chunk_count >= max_chunks) break; | |
| 1573 } | |
| 1574 } | |
| 1575 | |
| 1576 | |
| 1577 int java_lang_Throwable::get_stack_trace_depth(oop throwable, TRAPS) { | |
| 1578 if (throwable == NULL) { | |
| 1579 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
| 1580 } | |
| 1581 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
| 1582 int depth = 0; | |
| 1583 if (chunk != NULL) { | |
| 1584 // Iterate over chunks and count full ones | |
| 1585 while (true) { | |
| 1586 objArrayOop next = objArrayOop(chunk->obj_at(trace_next_offset)); | |
| 1587 if (next == NULL) break; | |
| 1588 depth += trace_chunk_size; | |
| 1589 chunk = next; | |
| 1590 } | |
| 1591 assert(chunk != NULL && chunk->obj_at(trace_next_offset) == NULL, "sanity check"); | |
| 1592 // Count element in remaining partial chunk | |
| 1593 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
| 1594 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
| 1595 assert(methods != NULL && bcis != NULL, "sanity check"); | |
| 1596 for (int i = 0; i < methods->length(); i++) { | |
| 1597 if (methods->obj_at(i) == NULL) break; | |
| 1598 depth++; | |
| 1599 } | |
| 1600 } | |
| 1601 return depth; | |
| 1602 } | |
| 1603 | |
| 1604 | |
| 1605 oop java_lang_Throwable::get_stack_trace_element(oop throwable, int index, TRAPS) { | |
| 1606 if (throwable == NULL) { | |
| 1607 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
| 1608 } | |
| 1609 if (index < 0) { | |
| 1610 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1611 } | |
| 1612 // Compute how many chunks to skip and index into actual chunk | |
| 1613 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
| 1614 int skip_chunks = index / trace_chunk_size; | |
| 1615 int chunk_index = index % trace_chunk_size; | |
| 1616 while (chunk != NULL && skip_chunks > 0) { | |
| 1617 chunk = objArrayOop(chunk->obj_at(trace_next_offset)); | |
| 1618 skip_chunks--; | |
| 1619 } | |
| 1620 if (chunk == NULL) { | |
| 1621 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1622 } | |
| 1623 // Get method,bci from chunk | |
| 1624 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
| 1625 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
| 1626 assert(methods != NULL && bcis != NULL, "sanity check"); | |
| 1627 methodHandle method(THREAD, methodOop(methods->obj_at(chunk_index))); | |
| 1628 int bci = bcis->ushort_at(chunk_index); | |
| 1629 // Chunk can be partial full | |
| 1630 if (method.is_null()) { | |
| 1631 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1632 } | |
| 1633 | |
| 1634 oop element = java_lang_StackTraceElement::create(method, bci, CHECK_0); | |
| 1635 return element; | |
| 1636 } | |
| 1637 | |
| 1638 oop java_lang_StackTraceElement::create(methodHandle method, int bci, TRAPS) { | |
| 1639 // SystemDictionary::stackTraceElement_klass() will be null for pre-1.4 JDKs | |
| 1640 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
| 1641 | |
| 1642 // Allocate java.lang.StackTraceElement instance | |
| 1142 | 1643 klassOop k = SystemDictionary::StackTraceElement_klass(); |
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1644 assert(k != NULL, "must be loaded in 1.4+"); |
| 0 | 1645 instanceKlassHandle ik (THREAD, k); |
| 1646 if (ik->should_be_initialized()) { | |
| 1647 ik->initialize(CHECK_0); | |
| 1648 } | |
| 1649 | |
| 1650 Handle element = ik->allocate_instance_handle(CHECK_0); | |
| 1651 // Fill in class name | |
| 1652 ResourceMark rm(THREAD); | |
| 1653 const char* str = instanceKlass::cast(method->method_holder())->external_name(); | |
| 1654 oop classname = StringTable::intern((char*) str, CHECK_0); | |
| 1655 java_lang_StackTraceElement::set_declaringClass(element(), classname); | |
| 1656 // Fill in method name | |
| 1657 oop methodname = StringTable::intern(method->name(), CHECK_0); | |
| 1658 java_lang_StackTraceElement::set_methodName(element(), methodname); | |
| 1659 // Fill in source file name | |
|
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1660 Symbol* source = instanceKlass::cast(method->method_holder())->source_file_name(); |
| 0 | 1661 oop filename = StringTable::intern(source, CHECK_0); |
| 1662 java_lang_StackTraceElement::set_fileName(element(), filename); | |
| 1663 // File in source line number | |
| 1664 int line_number; | |
| 1665 if (method->is_native()) { | |
| 1666 // Negative value different from -1 below, enabling Java code in | |
| 1667 // class java.lang.StackTraceElement to distinguish "native" from | |
| 1668 // "no LineNumberTable". | |
| 1669 line_number = -2; | |
| 1670 } else { | |
| 1671 // Returns -1 if no LineNumberTable, and otherwise actual line number | |
| 1672 line_number = method->line_number_from_bci(bci); | |
| 1673 } | |
| 1674 java_lang_StackTraceElement::set_lineNumber(element(), line_number); | |
| 1675 | |
| 1676 return element(); | |
| 1677 } | |
| 1678 | |
| 1679 | |
| 1680 void java_lang_reflect_AccessibleObject::compute_offsets() { | |
| 1142 | 1681 klassOop k = SystemDictionary::reflect_AccessibleObject_klass(); |
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1682 compute_offset(override_offset, k, vmSymbols::override_name(), vmSymbols::bool_signature()); |
| 0 | 1683 } |
| 1684 | |
| 1685 jboolean java_lang_reflect_AccessibleObject::override(oop reflect) { | |
| 1686 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1687 return (jboolean) reflect->bool_field(override_offset); | |
| 1688 } | |
| 1689 | |
| 1690 void java_lang_reflect_AccessibleObject::set_override(oop reflect, jboolean value) { | |
| 1691 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1692 reflect->bool_field_put(override_offset, (int) value); | |
| 1693 } | |
| 1694 | |
| 1695 void java_lang_reflect_Method::compute_offsets() { | |
| 1142 | 1696 klassOop k = SystemDictionary::reflect_Method_klass(); |
|
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1697 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1698 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1699 compute_offset(returnType_offset, k, vmSymbols::returnType_name(), vmSymbols::class_signature()); |
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1700 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1701 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1702 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1703 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 1704 // The generic signature and annotations fields are only present in 1.5 |
| 1705 signature_offset = -1; | |
| 1706 annotations_offset = -1; | |
| 1707 parameter_annotations_offset = -1; | |
| 1708 annotation_default_offset = -1; | |
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1709 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1710 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1711 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
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1712 compute_optional_offset(annotation_default_offset, k, vmSymbols::annotation_default_name(), vmSymbols::byte_array_signature()); |
| 0 | 1713 } |
| 1714 | |
| 1715 Handle java_lang_reflect_Method::create(TRAPS) { | |
| 1716 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1142 | 1717 klassOop klass = SystemDictionary::reflect_Method_klass(); |
| 0 | 1718 // This class is eagerly initialized during VM initialization, since we keep a refence |
| 1719 // to one of the methods | |
| 1720 assert(instanceKlass::cast(klass)->is_initialized(), "must be initialized"); | |
| 1721 return instanceKlass::cast(klass)->allocate_instance_handle(CHECK_NH); | |
| 1722 } | |
| 1723 | |
| 1724 oop java_lang_reflect_Method::clazz(oop reflect) { | |
| 1725 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1726 return reflect->obj_field(clazz_offset); | |
| 1727 } | |
| 1728 | |
| 1729 void java_lang_reflect_Method::set_clazz(oop reflect, oop value) { | |
| 1730 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1731 reflect->obj_field_put(clazz_offset, value); | |
| 1732 } | |
| 1733 | |
| 1734 int java_lang_reflect_Method::slot(oop reflect) { | |
| 1735 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1736 return reflect->int_field(slot_offset); | |
| 1737 } | |
| 1738 | |
| 1739 void java_lang_reflect_Method::set_slot(oop reflect, int value) { | |
| 1740 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1741 reflect->int_field_put(slot_offset, value); | |
| 1742 } | |
| 1743 | |
| 1744 oop java_lang_reflect_Method::name(oop method) { | |
| 1745 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1746 return method->obj_field(name_offset); | |
| 1747 } | |
| 1748 | |
| 1749 void java_lang_reflect_Method::set_name(oop method, oop value) { | |
| 1750 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1751 method->obj_field_put(name_offset, value); | |
| 1752 } | |
| 1753 | |
| 1754 oop java_lang_reflect_Method::return_type(oop method) { | |
| 1755 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1756 return method->obj_field(returnType_offset); | |
| 1757 } | |
| 1758 | |
| 1759 void java_lang_reflect_Method::set_return_type(oop method, oop value) { | |
| 1760 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1761 method->obj_field_put(returnType_offset, value); | |
| 1762 } | |
| 1763 | |
| 1764 oop java_lang_reflect_Method::parameter_types(oop method) { | |
| 1765 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1766 return method->obj_field(parameterTypes_offset); | |
| 1767 } | |
| 1768 | |
| 1769 void java_lang_reflect_Method::set_parameter_types(oop method, oop value) { | |
| 1770 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1771 method->obj_field_put(parameterTypes_offset, value); | |
| 1772 } | |
| 1773 | |
| 1774 oop java_lang_reflect_Method::exception_types(oop method) { | |
| 1775 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1776 return method->obj_field(exceptionTypes_offset); | |
| 1777 } | |
| 1778 | |
| 1779 void java_lang_reflect_Method::set_exception_types(oop method, oop value) { | |
| 1780 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1781 method->obj_field_put(exceptionTypes_offset, value); | |
| 1782 } | |
| 1783 | |
| 1784 int java_lang_reflect_Method::modifiers(oop method) { | |
| 1785 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1786 return method->int_field(modifiers_offset); | |
| 1787 } | |
| 1788 | |
| 1789 void java_lang_reflect_Method::set_modifiers(oop method, int value) { | |
| 1790 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1791 method->int_field_put(modifiers_offset, value); | |
| 1792 } | |
| 1793 | |
| 1794 bool java_lang_reflect_Method::has_signature_field() { | |
| 1795 return (signature_offset >= 0); | |
| 1796 } | |
| 1797 | |
| 1798 oop java_lang_reflect_Method::signature(oop method) { | |
| 1799 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1800 assert(has_signature_field(), "signature field must be present"); | |
| 1801 return method->obj_field(signature_offset); | |
| 1802 } | |
| 1803 | |
| 1804 void java_lang_reflect_Method::set_signature(oop method, oop value) { | |
| 1805 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1806 assert(has_signature_field(), "signature field must be present"); | |
| 1807 method->obj_field_put(signature_offset, value); | |
| 1808 } | |
| 1809 | |
| 1810 bool java_lang_reflect_Method::has_annotations_field() { | |
| 1811 return (annotations_offset >= 0); | |
| 1812 } | |
| 1813 | |
| 1814 oop java_lang_reflect_Method::annotations(oop method) { | |
| 1815 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1816 assert(has_annotations_field(), "annotations field must be present"); | |
| 1817 return method->obj_field(annotations_offset); | |
| 1818 } | |
| 1819 | |
| 1820 void java_lang_reflect_Method::set_annotations(oop method, oop value) { | |
| 1821 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1822 assert(has_annotations_field(), "annotations field must be present"); | |
| 1823 method->obj_field_put(annotations_offset, value); | |
| 1824 } | |
| 1825 | |
| 1826 bool java_lang_reflect_Method::has_parameter_annotations_field() { | |
| 1827 return (parameter_annotations_offset >= 0); | |
| 1828 } | |
| 1829 | |
| 1830 oop java_lang_reflect_Method::parameter_annotations(oop method) { | |
| 1831 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1832 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1833 return method->obj_field(parameter_annotations_offset); | |
| 1834 } | |
| 1835 | |
| 1836 void java_lang_reflect_Method::set_parameter_annotations(oop method, oop value) { | |
| 1837 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1838 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1839 method->obj_field_put(parameter_annotations_offset, value); | |
| 1840 } | |
| 1841 | |
| 1842 bool java_lang_reflect_Method::has_annotation_default_field() { | |
| 1843 return (annotation_default_offset >= 0); | |
| 1844 } | |
| 1845 | |
| 1846 oop java_lang_reflect_Method::annotation_default(oop method) { | |
| 1847 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1848 assert(has_annotation_default_field(), "annotation default field must be present"); | |
| 1849 return method->obj_field(annotation_default_offset); | |
| 1850 } | |
| 1851 | |
| 1852 void java_lang_reflect_Method::set_annotation_default(oop method, oop value) { | |
| 1853 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1854 assert(has_annotation_default_field(), "annotation default field must be present"); | |
| 1855 method->obj_field_put(annotation_default_offset, value); | |
| 1856 } | |
| 1857 | |
| 1858 void java_lang_reflect_Constructor::compute_offsets() { | |
| 1142 | 1859 klassOop k = SystemDictionary::reflect_Constructor_klass(); |
|
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1860 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1861 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1862 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1863 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1864 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 1865 // The generic signature and annotations fields are only present in 1.5 |
| 1866 signature_offset = -1; | |
| 1867 annotations_offset = -1; | |
| 1868 parameter_annotations_offset = -1; | |
|
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1869 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1870 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1871 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
| 0 | 1872 } |
| 1873 | |
| 1874 Handle java_lang_reflect_Constructor::create(TRAPS) { | |
| 1875 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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1876 Symbol* name = vmSymbols::java_lang_reflect_Constructor(); |
| 0 | 1877 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
| 1878 instanceKlassHandle klass (THREAD, k); | |
| 1879 // Ensure it is initialized | |
| 1880 klass->initialize(CHECK_NH); | |
| 1881 return klass->allocate_instance_handle(CHECK_NH); | |
| 1882 } | |
| 1883 | |
| 1884 oop java_lang_reflect_Constructor::clazz(oop reflect) { | |
| 1885 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1886 return reflect->obj_field(clazz_offset); | |
| 1887 } | |
| 1888 | |
| 1889 void java_lang_reflect_Constructor::set_clazz(oop reflect, oop value) { | |
| 1890 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1891 reflect->obj_field_put(clazz_offset, value); | |
| 1892 } | |
| 1893 | |
| 1894 oop java_lang_reflect_Constructor::parameter_types(oop constructor) { | |
| 1895 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1896 return constructor->obj_field(parameterTypes_offset); | |
| 1897 } | |
| 1898 | |
| 1899 void java_lang_reflect_Constructor::set_parameter_types(oop constructor, oop value) { | |
| 1900 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1901 constructor->obj_field_put(parameterTypes_offset, value); | |
| 1902 } | |
| 1903 | |
| 1904 oop java_lang_reflect_Constructor::exception_types(oop constructor) { | |
| 1905 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1906 return constructor->obj_field(exceptionTypes_offset); | |
| 1907 } | |
| 1908 | |
| 1909 void java_lang_reflect_Constructor::set_exception_types(oop constructor, oop value) { | |
| 1910 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1911 constructor->obj_field_put(exceptionTypes_offset, value); | |
| 1912 } | |
| 1913 | |
| 1914 int java_lang_reflect_Constructor::slot(oop reflect) { | |
| 1915 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1916 return reflect->int_field(slot_offset); | |
| 1917 } | |
| 1918 | |
| 1919 void java_lang_reflect_Constructor::set_slot(oop reflect, int value) { | |
| 1920 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1921 reflect->int_field_put(slot_offset, value); | |
| 1922 } | |
| 1923 | |
| 1924 int java_lang_reflect_Constructor::modifiers(oop constructor) { | |
| 1925 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1926 return constructor->int_field(modifiers_offset); | |
| 1927 } | |
| 1928 | |
| 1929 void java_lang_reflect_Constructor::set_modifiers(oop constructor, int value) { | |
| 1930 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1931 constructor->int_field_put(modifiers_offset, value); | |
| 1932 } | |
| 1933 | |
| 1934 bool java_lang_reflect_Constructor::has_signature_field() { | |
| 1935 return (signature_offset >= 0); | |
| 1936 } | |
| 1937 | |
| 1938 oop java_lang_reflect_Constructor::signature(oop constructor) { | |
| 1939 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1940 assert(has_signature_field(), "signature field must be present"); | |
| 1941 return constructor->obj_field(signature_offset); | |
| 1942 } | |
| 1943 | |
| 1944 void java_lang_reflect_Constructor::set_signature(oop constructor, oop value) { | |
| 1945 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1946 assert(has_signature_field(), "signature field must be present"); | |
| 1947 constructor->obj_field_put(signature_offset, value); | |
| 1948 } | |
| 1949 | |
| 1950 bool java_lang_reflect_Constructor::has_annotations_field() { | |
| 1951 return (annotations_offset >= 0); | |
| 1952 } | |
| 1953 | |
| 1954 oop java_lang_reflect_Constructor::annotations(oop constructor) { | |
| 1955 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1956 assert(has_annotations_field(), "annotations field must be present"); | |
| 1957 return constructor->obj_field(annotations_offset); | |
| 1958 } | |
| 1959 | |
| 1960 void java_lang_reflect_Constructor::set_annotations(oop constructor, oop value) { | |
| 1961 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1962 assert(has_annotations_field(), "annotations field must be present"); | |
| 1963 constructor->obj_field_put(annotations_offset, value); | |
| 1964 } | |
| 1965 | |
| 1966 bool java_lang_reflect_Constructor::has_parameter_annotations_field() { | |
| 1967 return (parameter_annotations_offset >= 0); | |
| 1968 } | |
| 1969 | |
| 1970 oop java_lang_reflect_Constructor::parameter_annotations(oop method) { | |
| 1971 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1972 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1973 return method->obj_field(parameter_annotations_offset); | |
| 1974 } | |
| 1975 | |
| 1976 void java_lang_reflect_Constructor::set_parameter_annotations(oop method, oop value) { | |
| 1977 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1978 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1979 method->obj_field_put(parameter_annotations_offset, value); | |
| 1980 } | |
| 1981 | |
| 1982 void java_lang_reflect_Field::compute_offsets() { | |
| 1142 | 1983 klassOop k = SystemDictionary::reflect_Field_klass(); |
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1984 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1985 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1986 compute_offset(type_offset, k, vmSymbols::type_name(), vmSymbols::class_signature()); |
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1987 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1988 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 1989 // The generic signature and annotations fields are only present in 1.5 |
| 1990 signature_offset = -1; | |
| 1991 annotations_offset = -1; | |
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1992 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1993 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
| 0 | 1994 } |
| 1995 | |
| 1996 Handle java_lang_reflect_Field::create(TRAPS) { | |
| 1997 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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1998 Symbol* name = vmSymbols::java_lang_reflect_Field(); |
| 0 | 1999 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
| 2000 instanceKlassHandle klass (THREAD, k); | |
| 2001 // Ensure it is initialized | |
| 2002 klass->initialize(CHECK_NH); | |
| 2003 return klass->allocate_instance_handle(CHECK_NH); | |
| 2004 } | |
| 2005 | |
| 2006 oop java_lang_reflect_Field::clazz(oop reflect) { | |
| 2007 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2008 return reflect->obj_field(clazz_offset); | |
| 2009 } | |
| 2010 | |
| 2011 void java_lang_reflect_Field::set_clazz(oop reflect, oop value) { | |
| 2012 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2013 reflect->obj_field_put(clazz_offset, value); | |
| 2014 } | |
| 2015 | |
| 2016 oop java_lang_reflect_Field::name(oop field) { | |
| 2017 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2018 return field->obj_field(name_offset); | |
| 2019 } | |
| 2020 | |
| 2021 void java_lang_reflect_Field::set_name(oop field, oop value) { | |
| 2022 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2023 field->obj_field_put(name_offset, value); | |
| 2024 } | |
| 2025 | |
| 2026 oop java_lang_reflect_Field::type(oop field) { | |
| 2027 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2028 return field->obj_field(type_offset); | |
| 2029 } | |
| 2030 | |
| 2031 void java_lang_reflect_Field::set_type(oop field, oop value) { | |
| 2032 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2033 field->obj_field_put(type_offset, value); | |
| 2034 } | |
| 2035 | |
| 2036 int java_lang_reflect_Field::slot(oop reflect) { | |
| 2037 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2038 return reflect->int_field(slot_offset); | |
| 2039 } | |
| 2040 | |
| 2041 void java_lang_reflect_Field::set_slot(oop reflect, int value) { | |
| 2042 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2043 reflect->int_field_put(slot_offset, value); | |
| 2044 } | |
| 2045 | |
| 2046 int java_lang_reflect_Field::modifiers(oop field) { | |
| 2047 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2048 return field->int_field(modifiers_offset); | |
| 2049 } | |
| 2050 | |
| 2051 void java_lang_reflect_Field::set_modifiers(oop field, int value) { | |
| 2052 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2053 field->int_field_put(modifiers_offset, value); | |
| 2054 } | |
| 2055 | |
| 2056 bool java_lang_reflect_Field::has_signature_field() { | |
| 2057 return (signature_offset >= 0); | |
| 2058 } | |
| 2059 | |
| 2060 oop java_lang_reflect_Field::signature(oop field) { | |
| 2061 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2062 assert(has_signature_field(), "signature field must be present"); | |
| 2063 return field->obj_field(signature_offset); | |
| 2064 } | |
| 2065 | |
| 2066 void java_lang_reflect_Field::set_signature(oop field, oop value) { | |
| 2067 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2068 assert(has_signature_field(), "signature field must be present"); | |
| 2069 field->obj_field_put(signature_offset, value); | |
| 2070 } | |
| 2071 | |
| 2072 bool java_lang_reflect_Field::has_annotations_field() { | |
| 2073 return (annotations_offset >= 0); | |
| 2074 } | |
| 2075 | |
| 2076 oop java_lang_reflect_Field::annotations(oop field) { | |
| 2077 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2078 assert(has_annotations_field(), "annotations field must be present"); | |
| 2079 return field->obj_field(annotations_offset); | |
| 2080 } | |
| 2081 | |
| 2082 void java_lang_reflect_Field::set_annotations(oop field, oop value) { | |
| 2083 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2084 assert(has_annotations_field(), "annotations field must be present"); | |
| 2085 field->obj_field_put(annotations_offset, value); | |
| 2086 } | |
| 2087 | |
| 2088 | |
| 2089 void sun_reflect_ConstantPool::compute_offsets() { | |
| 1142 | 2090 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
| 0 | 2091 // This null test can be removed post beta |
| 2092 if (k != NULL) { | |
|
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2093 compute_offset(_cp_oop_offset, k, vmSymbols::constantPoolOop_name(), vmSymbols::object_signature()); |
| 0 | 2094 } |
| 2095 } | |
| 2096 | |
| 2097 | |
| 2098 Handle sun_reflect_ConstantPool::create(TRAPS) { | |
| 2099 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1142 | 2100 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
| 0 | 2101 instanceKlassHandle klass (THREAD, k); |
| 2102 // Ensure it is initialized | |
| 2103 klass->initialize(CHECK_NH); | |
| 2104 return klass->allocate_instance_handle(CHECK_NH); | |
| 2105 } | |
| 2106 | |
| 2107 | |
| 2108 oop sun_reflect_ConstantPool::cp_oop(oop reflect) { | |
| 2109 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2110 return reflect->obj_field(_cp_oop_offset); | |
| 2111 } | |
| 2112 | |
| 2113 | |
| 2114 void sun_reflect_ConstantPool::set_cp_oop(oop reflect, oop value) { | |
| 2115 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2116 reflect->obj_field_put(_cp_oop_offset, value); | |
| 2117 } | |
| 2118 | |
| 2119 void sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets() { | |
| 1142 | 2120 klassOop k = SystemDictionary::reflect_UnsafeStaticFieldAccessorImpl_klass(); |
| 0 | 2121 // This null test can be removed post beta |
| 2122 if (k != NULL) { | |
|
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2123 compute_offset(_base_offset, k, |
| 0 | 2124 vmSymbols::base_name(), vmSymbols::object_signature()); |
| 2125 } | |
| 2126 } | |
| 2127 | |
|
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2128 oop java_lang_boxing_object::initialize_and_allocate(BasicType type, TRAPS) { |
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2129 klassOop k = SystemDictionary::box_klass(type); |
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2130 if (k == NULL) return NULL; |
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2131 instanceKlassHandle h (THREAD, k); |
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2132 if (!h->is_initialized()) h->initialize(CHECK_0); |
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2133 return h->allocate_instance(THREAD); |
| 0 | 2134 } |
| 2135 | |
| 2136 | |
| 2137 oop java_lang_boxing_object::create(BasicType type, jvalue* value, TRAPS) { | |
|
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2138 oop box = initialize_and_allocate(type, CHECK_0); |
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2139 if (box == NULL) return NULL; |
| 0 | 2140 switch (type) { |
| 2141 case T_BOOLEAN: | |
| 2142 box->bool_field_put(value_offset, value->z); | |
| 2143 break; | |
| 2144 case T_CHAR: | |
| 2145 box->char_field_put(value_offset, value->c); | |
| 2146 break; | |
| 2147 case T_FLOAT: | |
| 2148 box->float_field_put(value_offset, value->f); | |
| 2149 break; | |
| 2150 case T_DOUBLE: | |
|
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2151 box->double_field_put(long_value_offset, value->d); |
| 0 | 2152 break; |
| 2153 case T_BYTE: | |
| 2154 box->byte_field_put(value_offset, value->b); | |
| 2155 break; | |
| 2156 case T_SHORT: | |
| 2157 box->short_field_put(value_offset, value->s); | |
| 2158 break; | |
| 2159 case T_INT: | |
| 2160 box->int_field_put(value_offset, value->i); | |
| 2161 break; | |
| 2162 case T_LONG: | |
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2163 box->long_field_put(long_value_offset, value->j); |
| 0 | 2164 break; |
| 2165 default: | |
| 2166 return NULL; | |
| 2167 } | |
| 2168 return box; | |
| 2169 } | |
| 2170 | |
| 2171 | |
|
132
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|
2172 BasicType java_lang_boxing_object::basic_type(oop box) { |
|
60b728ec77c1
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|
2173 if (box == NULL) return T_ILLEGAL; |
|
60b728ec77c1
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jrose
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113
diff
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|
2174 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
|
60b728ec77c1
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jrose
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diff
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|
2175 if (type == T_OBJECT) // 'unknown' value returned by SD::bkt |
|
60b728ec77c1
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jrose
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113
diff
changeset
|
2176 return T_ILLEGAL; |
|
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2177 return type; |
|
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2178 } |
|
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2179 |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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diff
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|
2180 |
| 0 | 2181 BasicType java_lang_boxing_object::get_value(oop box, jvalue* value) { |
|
132
60b728ec77c1
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jrose
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|
2182 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
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|
2183 switch (type) { |
|
60b728ec77c1
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jrose
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diff
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|
2184 case T_BOOLEAN: |
| 0 | 2185 value->z = box->bool_field(value_offset); |
|
132
60b728ec77c1
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jrose
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113
diff
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|
2186 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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113
diff
changeset
|
2187 case T_CHAR: |
| 0 | 2188 value->c = box->char_field(value_offset); |
|
132
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2189 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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113
diff
changeset
|
2190 case T_FLOAT: |
| 0 | 2191 value->f = box->float_field(value_offset); |
|
132
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2192 break; |
|
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2193 case T_DOUBLE: |
|
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
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diff
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|
2194 value->d = box->double_field(long_value_offset); |
|
132
60b728ec77c1
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jrose
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113
diff
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|
2195 break; |
|
60b728ec77c1
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jrose
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113
diff
changeset
|
2196 case T_BYTE: |
| 0 | 2197 value->b = box->byte_field(value_offset); |
|
132
60b728ec77c1
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jrose
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113
diff
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|
2198 break; |
|
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jrose
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113
diff
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|
2199 case T_SHORT: |
| 0 | 2200 value->s = box->short_field(value_offset); |
|
132
60b728ec77c1
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jrose
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113
diff
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|
2201 break; |
|
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jrose
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113
diff
changeset
|
2202 case T_INT: |
| 0 | 2203 value->i = box->int_field(value_offset); |
|
132
60b728ec77c1
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jrose
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113
diff
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|
2204 break; |
|
60b728ec77c1
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jrose
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113
diff
changeset
|
2205 case T_LONG: |
|
165
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diff
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|
2206 value->j = box->long_field(long_value_offset); |
|
132
60b728ec77c1
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jrose
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113
diff
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|
2207 break; |
|
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2208 default: |
|
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2209 return T_ILLEGAL; |
|
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2210 } // end switch |
|
60b728ec77c1
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jrose
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113
diff
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|
2211 return type; |
| 0 | 2212 } |
| 2213 | |
| 2214 | |
| 2215 BasicType java_lang_boxing_object::set_value(oop box, jvalue* value) { | |
|
132
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|
2216 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
|
60b728ec77c1
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jrose
parents:
113
diff
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|
2217 switch (type) { |
|
60b728ec77c1
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jrose
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113
diff
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|
2218 case T_BOOLEAN: |
| 0 | 2219 box->bool_field_put(value_offset, value->z); |
|
132
60b728ec77c1
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jrose
parents:
113
diff
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|
2220 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2221 case T_CHAR: |
| 0 | 2222 box->char_field_put(value_offset, value->c); |
|
132
60b728ec77c1
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jrose
parents:
113
diff
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|
2223 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2224 case T_FLOAT: |
| 0 | 2225 box->float_field_put(value_offset, value->f); |
|
132
60b728ec77c1
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jrose
parents:
113
diff
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|
2226 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2227 case T_DOUBLE: |
|
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
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|
2228 box->double_field_put(long_value_offset, value->d); |
|
132
60b728ec77c1
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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_BYTE: |
| 0 | 2231 box->byte_field_put(value_offset, value->b); |
|
132
60b728ec77c1
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jrose
parents:
113
diff
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|
2232 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2233 case T_SHORT: |
| 0 | 2234 box->short_field_put(value_offset, value->s); |
|
132
60b728ec77c1
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jrose
parents:
113
diff
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|
2235 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2236 case T_INT: |
| 0 | 2237 box->int_field_put(value_offset, value->i); |
|
132
60b728ec77c1
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jrose
parents:
113
diff
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|
2238 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2239 case T_LONG: |
|
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
2240 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
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|
2241 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2242 default: |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2243 return T_ILLEGAL; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2244 } // end switch |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2245 return type; |
| 0 | 2246 } |
| 2247 | |
| 2248 | |
|
665
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2249 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
|
2250 switch (type) { |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2251 case T_BOOLEAN: st->print("%s", value->z ? "true" : "false"); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2252 case T_CHAR: st->print("%d", value->c); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2253 case T_BYTE: st->print("%d", value->b); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2254 case T_SHORT: st->print("%d", value->s); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2255 case T_INT: st->print("%d", value->i); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2256 case T_LONG: st->print(INT64_FORMAT, value->j); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2257 case T_FLOAT: st->print("%f", value->f); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2258 case T_DOUBLE: st->print("%lf", value->d); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2259 default: st->print("type %d?", type); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2260 } |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2261 } |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2262 |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2263 |
| 0 | 2264 // 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
|
2265 oop java_lang_ref_Reference::pending_list_lock() { |
| 1142 | 2266 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
|
2267 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
|
2268 if (UseCompressedOops) { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2269 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
|
2270 } else { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2271 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
|
2272 } |
| 0 | 2273 } |
| 2274 | |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2275 HeapWord *java_lang_ref_Reference::pending_list_addr() { |
| 1142 | 2276 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
|
2277 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
|
2278 // 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
|
2279 return (HeapWord*)addr; |
| 0 | 2280 } |
| 2281 | |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
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98
diff
changeset
|
2282 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
|
2283 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
|
2284 if (UseCompressedOops) { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2285 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
|
2286 } else { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2287 return oopDesc::load_decode_heap_oop((oop*)addr); |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2288 } |
| 0 | 2289 } |
| 2290 | |
| 2291 | |
| 2292 // Support for java_lang_ref_SoftReference | |
| 2293 | |
| 2294 jlong java_lang_ref_SoftReference::timestamp(oop ref) { | |
| 2295 return ref->long_field(timestamp_offset); | |
| 2296 } | |
| 2297 | |
| 2298 jlong java_lang_ref_SoftReference::clock() { | |
| 1142 | 2299 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
|
2300 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
|
2301 return *offset; |
| 0 | 2302 } |
| 2303 | |
| 2304 void java_lang_ref_SoftReference::set_clock(jlong value) { | |
| 1142 | 2305 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
|
2306 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
|
2307 *offset = value; |
| 0 | 2308 } |
| 2309 | |
| 2310 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2311 // Support for java_lang_invoke_MethodHandle |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2312 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2313 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
|
2314 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
|
2315 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
|
2316 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
|
2317 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2318 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
|
2319 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
|
2320 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
|
2321 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
|
2322 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
|
2323 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
|
2324 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2325 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
|
2326 |
|
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2327 int java_lang_invoke_BoundMethodHandle::_argument_offset; |
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2328 int java_lang_invoke_BoundMethodHandle::_vmargslot_offset; |
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2329 |
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2330 int java_lang_invoke_AdapterMethodHandle::_conversion_offset; |
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2331 |
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2332 void java_lang_invoke_MethodHandle::compute_offsets() { |
| 710 | 2333 klassOop k = SystemDictionary::MethodHandle_klass(); |
| 2334 if (k != NULL && EnableMethodHandles) { | |
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2335 bool allow_super = false; |
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2336 if (AllowTransitionalJSR292) allow_super = true; // temporary, to access java.dyn.MethodHandleImpl |
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2337 compute_offset(_type_offset, k, vmSymbols::type_name(), vmSymbols::java_lang_invoke_MethodType_signature(), allow_super); |
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2338 compute_offset(_vmtarget_offset, k, vmSymbols::vmtarget_name(), vmSymbols::object_signature(), allow_super); |
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2339 compute_offset(_vmentry_offset, k, vmSymbols::vmentry_name(), vmSymbols::machine_word_signature(), allow_super); |
| 710 | 2340 |
| 2341 // Note: MH.vmslots (if it is present) is a hoisted copy of MH.type.form.vmslots. | |
| 2342 // It is optional pending experiments to keep or toss. | |
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2343 compute_optional_offset(_vmslots_offset, k, vmSymbols::vmslots_name(), vmSymbols::int_signature(), allow_super); |
| 710 | 2344 } |
| 2345 } | |
| 2346 | |
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2347 void java_lang_invoke_MemberName::compute_offsets() { |
| 710 | 2348 klassOop k = SystemDictionary::MemberName_klass(); |
| 2349 if (k != NULL && EnableMethodHandles) { | |
| 2350 compute_offset(_clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); | |
| 2351 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); | |
| 2352 compute_offset(_type_offset, k, vmSymbols::type_name(), vmSymbols::object_signature()); | |
| 2353 compute_offset(_flags_offset, k, vmSymbols::flags_name(), vmSymbols::int_signature()); | |
| 2354 compute_offset(_vmtarget_offset, k, vmSymbols::vmtarget_name(), vmSymbols::object_signature()); | |
| 2355 compute_offset(_vmindex_offset, k, vmSymbols::vmindex_name(), vmSymbols::int_signature()); | |
| 2356 } | |
| 2357 } | |
| 2358 | |
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2359 void java_lang_invoke_DirectMethodHandle::compute_offsets() { |
| 710 | 2360 klassOop k = SystemDictionary::DirectMethodHandle_klass(); |
| 2361 if (k != NULL && EnableMethodHandles) { | |
| 2362 compute_offset(_vmindex_offset, k, vmSymbols::vmindex_name(), vmSymbols::int_signature(), true); | |
| 2363 } | |
| 2364 } | |
| 2365 | |
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2366 void java_lang_invoke_BoundMethodHandle::compute_offsets() { |
| 710 | 2367 klassOop k = SystemDictionary::BoundMethodHandle_klass(); |
| 2368 if (k != NULL && EnableMethodHandles) { | |
| 2369 compute_offset(_vmargslot_offset, k, vmSymbols::vmargslot_name(), vmSymbols::int_signature(), true); | |
| 2370 compute_offset(_argument_offset, k, vmSymbols::argument_name(), vmSymbols::object_signature(), true); | |
| 2371 } | |
| 2372 } | |
| 2373 | |
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2374 void java_lang_invoke_AdapterMethodHandle::compute_offsets() { |
| 710 | 2375 klassOop k = SystemDictionary::AdapterMethodHandle_klass(); |
| 2376 if (k != NULL && EnableMethodHandles) { | |
| 2377 compute_offset(_conversion_offset, k, vmSymbols::conversion_name(), vmSymbols::int_signature(), true); | |
| 2378 } | |
| 2379 } | |
| 2380 | |
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2381 oop java_lang_invoke_MethodHandle::type(oop mh) { |
| 710 | 2382 return mh->obj_field(_type_offset); |
| 2383 } | |
| 2384 | |
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2385 void java_lang_invoke_MethodHandle::set_type(oop mh, oop mtype) { |
| 710 | 2386 mh->obj_field_put(_type_offset, mtype); |
| 2387 } | |
| 2388 | |
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2389 int java_lang_invoke_MethodHandle::vmslots(oop mh) { |
| 710 | 2390 int vmslots_offset = _vmslots_offset; |
| 2391 if (vmslots_offset != 0) { | |
| 2392 #ifdef ASSERT | |
| 2393 int x = mh->int_field(vmslots_offset); | |
| 2394 int y = compute_vmslots(mh); | |
| 2395 assert(x == y, "correct hoisted value"); | |
| 2396 #endif | |
| 2397 return mh->int_field(vmslots_offset); | |
| 2398 } else { | |
| 2399 return compute_vmslots(mh); | |
| 2400 } | |
| 2401 } | |
| 2402 | |
| 2403 // if MH.vmslots exists, hoist into it the value of type.form.vmslots | |
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2404 void java_lang_invoke_MethodHandle::init_vmslots(oop mh) { |
| 710 | 2405 int vmslots_offset = _vmslots_offset; |
| 2406 if (vmslots_offset != 0) { | |
| 2407 mh->int_field_put(vmslots_offset, compute_vmslots(mh)); | |
| 2408 } | |
| 2409 } | |
| 2410 | |
| 2411 // fetch type.form.vmslots, which is the number of JVM stack slots | |
| 2412 // required to carry the arguments of this MH | |
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2413 int java_lang_invoke_MethodHandle::compute_vmslots(oop mh) { |
| 710 | 2414 oop mtype = type(mh); |
| 2415 if (mtype == NULL) return 0; // Java code would get NPE | |
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2416 oop form = java_lang_invoke_MethodType::form(mtype); |
| 710 | 2417 if (form == NULL) return 0; // Java code would get NPE |
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2418 return java_lang_invoke_MethodTypeForm::vmslots(form); |
| 710 | 2419 } |
| 2420 | |
| 2421 // fetch the low-level entry point for this mh | |
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2422 MethodHandleEntry* java_lang_invoke_MethodHandle::vmentry(oop mh) { |
| 710 | 2423 return (MethodHandleEntry*) mh->address_field(_vmentry_offset); |
| 2424 } | |
| 2425 | |
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2426 void java_lang_invoke_MethodHandle::set_vmentry(oop mh, MethodHandleEntry* me) { |
| 710 | 2427 assert(_vmentry_offset != 0, "must be present"); |
| 2428 | |
| 2429 // This is always the final step that initializes a valid method handle: | |
| 2430 mh->release_address_field_put(_vmentry_offset, (address) me); | |
| 2431 | |
| 2432 // There should be enough memory barriers on exit from native methods | |
| 2433 // to ensure that the MH is fully initialized to all threads before | |
| 2434 // Java code can publish it in global data structures. | |
| 2435 // But just in case, we use release_address_field_put. | |
| 2436 } | |
| 2437 | |
| 2438 /// MemberName accessors | |
| 2439 | |
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2440 oop java_lang_invoke_MemberName::clazz(oop mname) { |
| 710 | 2441 assert(is_instance(mname), "wrong type"); |
| 2442 return mname->obj_field(_clazz_offset); | |
| 2443 } | |
| 2444 | |
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2445 void java_lang_invoke_MemberName::set_clazz(oop mname, oop clazz) { |
| 710 | 2446 assert(is_instance(mname), "wrong type"); |
| 2447 mname->obj_field_put(_clazz_offset, clazz); | |
| 2448 } | |
| 2449 | |
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2450 oop java_lang_invoke_MemberName::name(oop mname) { |
| 710 | 2451 assert(is_instance(mname), "wrong type"); |
| 2452 return mname->obj_field(_name_offset); | |
| 2453 } | |
| 2454 | |
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2455 void java_lang_invoke_MemberName::set_name(oop mname, oop name) { |
| 710 | 2456 assert(is_instance(mname), "wrong type"); |
| 2457 mname->obj_field_put(_name_offset, name); | |
| 2458 } | |
| 2459 | |
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2460 oop java_lang_invoke_MemberName::type(oop mname) { |
| 710 | 2461 assert(is_instance(mname), "wrong type"); |
| 2462 return mname->obj_field(_type_offset); | |
| 2463 } | |
| 2464 | |
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2465 void java_lang_invoke_MemberName::set_type(oop mname, oop type) { |
| 710 | 2466 assert(is_instance(mname), "wrong type"); |
| 2467 mname->obj_field_put(_type_offset, type); | |
| 2468 } | |
| 2469 | |
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2470 int java_lang_invoke_MemberName::flags(oop mname) { |
| 710 | 2471 assert(is_instance(mname), "wrong type"); |
| 2472 return mname->int_field(_flags_offset); | |
| 2473 } | |
| 2474 | |
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2475 void java_lang_invoke_MemberName::set_flags(oop mname, int flags) { |
| 710 | 2476 assert(is_instance(mname), "wrong type"); |
| 2477 mname->int_field_put(_flags_offset, flags); | |
| 2478 } | |
| 2479 | |
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2480 oop java_lang_invoke_MemberName::vmtarget(oop mname) { |
| 710 | 2481 assert(is_instance(mname), "wrong type"); |
| 2482 return mname->obj_field(_vmtarget_offset); | |
| 2483 } | |
| 2484 | |
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2485 void java_lang_invoke_MemberName::set_vmtarget(oop mname, oop ref) { |
| 710 | 2486 assert(is_instance(mname), "wrong type"); |
| 2487 mname->obj_field_put(_vmtarget_offset, ref); | |
| 2488 } | |
| 2489 | |
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2490 int java_lang_invoke_MemberName::vmindex(oop mname) { |
| 710 | 2491 assert(is_instance(mname), "wrong type"); |
| 2492 return mname->int_field(_vmindex_offset); | |
| 2493 } | |
| 2494 | |
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|
2495 void java_lang_invoke_MemberName::set_vmindex(oop mname, int index) { |
| 710 | 2496 assert(is_instance(mname), "wrong type"); |
| 2497 mname->int_field_put(_vmindex_offset, index); | |
| 2498 } | |
| 2499 | |
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2500 oop java_lang_invoke_MethodHandle::vmtarget(oop mh) { |
| 710 | 2501 assert(is_instance(mh), "MH only"); |
| 2502 return mh->obj_field(_vmtarget_offset); | |
| 2503 } | |
| 2504 | |
|
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|
2505 void java_lang_invoke_MethodHandle::set_vmtarget(oop mh, oop ref) { |
| 710 | 2506 assert(is_instance(mh), "MH only"); |
| 2507 mh->obj_field_put(_vmtarget_offset, ref); | |
| 2508 } | |
| 2509 | |
|
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2510 int java_lang_invoke_DirectMethodHandle::vmindex(oop mh) { |
| 710 | 2511 assert(is_instance(mh), "DMH only"); |
| 2512 return mh->int_field(_vmindex_offset); | |
| 2513 } | |
| 2514 | |
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2515 void java_lang_invoke_DirectMethodHandle::set_vmindex(oop mh, int index) { |
| 710 | 2516 assert(is_instance(mh), "DMH only"); |
| 2517 mh->int_field_put(_vmindex_offset, index); | |
| 2518 } | |
| 2519 | |
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2520 int java_lang_invoke_BoundMethodHandle::vmargslot(oop mh) { |
| 710 | 2521 assert(is_instance(mh), "BMH only"); |
| 2522 return mh->int_field(_vmargslot_offset); | |
| 2523 } | |
| 2524 | |
|
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2525 oop java_lang_invoke_BoundMethodHandle::argument(oop mh) { |
| 710 | 2526 assert(is_instance(mh), "BMH only"); |
| 2527 return mh->obj_field(_argument_offset); | |
| 2528 } | |
| 2529 | |
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2530 int java_lang_invoke_AdapterMethodHandle::conversion(oop mh) { |
| 710 | 2531 assert(is_instance(mh), "AMH only"); |
| 2532 return mh->int_field(_conversion_offset); | |
| 2533 } | |
| 2534 | |
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2535 void java_lang_invoke_AdapterMethodHandle::set_conversion(oop mh, int conv) { |
| 710 | 2536 assert(is_instance(mh), "AMH only"); |
| 2537 mh->int_field_put(_conversion_offset, conv); | |
| 2538 } | |
| 2539 | |
| 2540 | |
|
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|
2541 // Support for java_lang_invoke_MethodType |
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2542 |
|
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2543 int java_lang_invoke_MethodType::_rtype_offset; |
|
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2544 int java_lang_invoke_MethodType::_ptypes_offset; |
|
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|
2545 int java_lang_invoke_MethodType::_form_offset; |
|
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|
2546 |
|
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|
2547 void java_lang_invoke_MethodType::compute_offsets() { |
| 710 | 2548 klassOop k = SystemDictionary::MethodType_klass(); |
| 2549 if (k != NULL) { | |
| 2550 compute_offset(_rtype_offset, k, vmSymbols::rtype_name(), vmSymbols::class_signature()); | |
| 2551 compute_offset(_ptypes_offset, k, vmSymbols::ptypes_name(), vmSymbols::class_array_signature()); | |
|
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|
2552 compute_offset(_form_offset, k, vmSymbols::form_name(), vmSymbols::java_lang_invoke_MethodTypeForm_signature()); |
| 710 | 2553 } |
| 2554 } | |
| 2555 | |
|
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|
2556 void java_lang_invoke_MethodType::print_signature(oop mt, outputStream* st) { |
| 710 | 2557 st->print("("); |
| 2558 objArrayOop pts = ptypes(mt); | |
| 2559 for (int i = 0, limit = pts->length(); i < limit; i++) { | |
| 2560 java_lang_Class::print_signature(pts->obj_at(i), st); | |
| 2561 } | |
| 2562 st->print(")"); | |
| 2563 java_lang_Class::print_signature(rtype(mt), st); | |
| 2564 } | |
| 2565 | |
|
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|
2566 Symbol* java_lang_invoke_MethodType::as_signature(oop mt, bool intern_if_not_found, TRAPS) { |
| 710 | 2567 ResourceMark rm; |
| 2568 stringStream buffer(128); | |
| 2569 print_signature(mt, &buffer); | |
| 2570 const char* sigstr = buffer.base(); | |
| 2571 int siglen = (int) buffer.size(); | |
|
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|
2572 Symbol *name; |
|
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|
2573 if (!intern_if_not_found) { |
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2574 name = SymbolTable::probe(sigstr, siglen); |
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|
2575 } else { |
|
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|
2576 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
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|
2577 } |
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|
2578 return name; |
| 710 | 2579 } |
| 2580 | |
|
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|
2581 oop java_lang_invoke_MethodType::rtype(oop mt) { |
| 710 | 2582 assert(is_instance(mt), "must be a MethodType"); |
| 2583 return mt->obj_field(_rtype_offset); | |
| 2584 } | |
| 2585 | |
|
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|
2586 objArrayOop java_lang_invoke_MethodType::ptypes(oop mt) { |
| 710 | 2587 assert(is_instance(mt), "must be a MethodType"); |
| 2588 return (objArrayOop) mt->obj_field(_ptypes_offset); | |
| 2589 } | |
| 2590 | |
|
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|
2591 oop java_lang_invoke_MethodType::form(oop mt) { |
| 710 | 2592 assert(is_instance(mt), "must be a MethodType"); |
| 2593 return mt->obj_field(_form_offset); | |
| 2594 } | |
| 2595 | |
|
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|
2596 oop java_lang_invoke_MethodType::ptype(oop mt, int idx) { |
| 710 | 2597 return ptypes(mt)->obj_at(idx); |
| 2598 } | |
| 2599 | |
|
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|
2600 int java_lang_invoke_MethodType::ptype_count(oop mt) { |
|
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|
2601 return ptypes(mt)->length(); |
|
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|
2602 } |
|
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|
2603 |
| 710 | 2604 |
| 2605 | |
|
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|
2606 // Support for java_lang_invoke_MethodTypeForm |
|
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|
2607 |
|
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|
2608 int java_lang_invoke_MethodTypeForm::_vmslots_offset; |
|
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|
2609 int java_lang_invoke_MethodTypeForm::_erasedType_offset; |
|
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|
2610 int java_lang_invoke_MethodTypeForm::_genericInvoker_offset; |
|
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|
2611 |
|
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|
2612 void java_lang_invoke_MethodTypeForm::compute_offsets() { |
| 710 | 2613 klassOop k = SystemDictionary::MethodTypeForm_klass(); |
| 2614 if (k != NULL) { | |
| 2615 compute_optional_offset(_vmslots_offset, k, vmSymbols::vmslots_name(), vmSymbols::int_signature(), true); | |
|
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|
2616 compute_optional_offset(_erasedType_offset, k, vmSymbols::erasedType_name(), vmSymbols::java_lang_invoke_MethodType_signature(), true); |
|
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|
2617 compute_optional_offset(_genericInvoker_offset, k, vmSymbols::genericInvoker_name(), vmSymbols::java_lang_invoke_MethodHandle_signature(), true); |
|
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|
2618 if (_genericInvoker_offset == 0) _genericInvoker_offset = -1; // set to explicit "empty" value |
| 710 | 2619 } |
| 2620 } | |
| 2621 | |
|
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2622 int java_lang_invoke_MethodTypeForm::vmslots(oop mtform) { |
| 710 | 2623 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
| 2624 return mtform->int_field(_vmslots_offset); | |
| 2625 } | |
| 2626 | |
|
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|
2627 oop java_lang_invoke_MethodTypeForm::erasedType(oop mtform) { |
| 710 | 2628 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
| 2629 return mtform->obj_field(_erasedType_offset); | |
| 2630 } | |
| 2631 | |
|
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|
2632 oop java_lang_invoke_MethodTypeForm::genericInvoker(oop mtform) { |
|
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|
2633 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
|
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|
2634 return mtform->obj_field(_genericInvoker_offset); |
|
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|
2635 } |
|
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|
2636 |
| 710 | 2637 |
|
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|
2638 // Support for java_lang_invoke_CallSite |
|
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|
2639 |
|
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|
2640 int java_lang_invoke_CallSite::_target_offset; |
|
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|
2641 |
|
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|
2642 void java_lang_invoke_CallSite::compute_offsets() { |
|
726
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|
2643 if (!EnableInvokeDynamic) return; |
|
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|
2644 klassOop k = SystemDictionary::CallSite_klass(); |
|
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|
2645 if (k != NULL) { |
|
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|
2646 compute_offset(_target_offset, k, vmSymbols::target_name(), vmSymbols::java_lang_invoke_MethodHandle_signature()); |
|
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|
2647 } |
|
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|
2648 } |
|
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|
2649 |
|
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|
2650 oop java_lang_invoke_CallSite::target(oop site) { |
|
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|
2651 return site->obj_field(_target_offset); |
|
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|
2652 } |
|
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|
2653 |
|
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|
2654 void java_lang_invoke_CallSite::set_target(oop site, oop target) { |
|
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|
2655 site->obj_field_put(_target_offset, target); |
|
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|
2656 } |
|
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|
2657 |
| 710 | 2658 |
| 0 | 2659 // Support for java_security_AccessControlContext |
| 2660 | |
| 2661 int java_security_AccessControlContext::_context_offset = 0; | |
| 2662 int java_security_AccessControlContext::_privilegedContext_offset = 0; | |
| 2663 int java_security_AccessControlContext::_isPrivileged_offset = 0; | |
| 2664 | |
| 2665 void java_security_AccessControlContext::compute_offsets() { | |
| 2666 assert(_isPrivileged_offset == 0, "offsets should be initialized only once"); | |
| 2667 fieldDescriptor fd; | |
| 2668 instanceKlass* ik = instanceKlass::cast(SystemDictionary::AccessControlContext_klass()); | |
| 2669 | |
| 2670 if (!ik->find_local_field(vmSymbols::context_name(), vmSymbols::protectiondomain_signature(), &fd)) { | |
| 2671 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2672 } | |
| 2673 _context_offset = fd.offset(); | |
| 2674 | |
| 2675 if (!ik->find_local_field(vmSymbols::privilegedContext_name(), vmSymbols::accesscontrolcontext_signature(), &fd)) { | |
| 2676 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2677 } | |
| 2678 _privilegedContext_offset = fd.offset(); | |
| 2679 | |
| 2680 if (!ik->find_local_field(vmSymbols::isPrivileged_name(), vmSymbols::bool_signature(), &fd)) { | |
| 2681 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2682 } | |
| 2683 _isPrivileged_offset = fd.offset(); | |
| 2684 } | |
| 2685 | |
| 2686 | |
| 2687 oop java_security_AccessControlContext::create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS) { | |
| 2688 assert(_isPrivileged_offset != 0, "offsets should have been initialized"); | |
| 2689 // Ensure klass is initialized | |
| 2690 instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->initialize(CHECK_0); | |
| 2691 // Allocate result | |
| 2692 oop result = instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->allocate_instance(CHECK_0); | |
| 2693 // Fill in values | |
| 2694 result->obj_field_put(_context_offset, context()); | |
| 2695 result->obj_field_put(_privilegedContext_offset, privileged_context()); | |
| 2696 result->bool_field_put(_isPrivileged_offset, isPrivileged); | |
| 2697 return result; | |
| 2698 } | |
| 2699 | |
| 2700 | |
| 2701 // Support for java_lang_ClassLoader | |
| 2702 | |
| 2703 oop java_lang_ClassLoader::parent(oop loader) { | |
| 2704 assert(loader->is_oop(), "loader must be oop"); | |
| 2705 return loader->obj_field(parent_offset); | |
| 2706 } | |
| 2707 | |
| 2708 | |
| 2709 bool java_lang_ClassLoader::is_trusted_loader(oop loader) { | |
| 2710 // Fix for 4474172; see evaluation for more details | |
| 2711 loader = non_reflection_class_loader(loader); | |
| 2712 | |
| 2713 oop cl = SystemDictionary::java_system_loader(); | |
| 2714 while(cl != NULL) { | |
| 2715 if (cl == loader) return true; | |
| 2716 cl = parent(cl); | |
| 2717 } | |
| 2718 return false; | |
| 2719 } | |
| 2720 | |
| 2721 oop java_lang_ClassLoader::non_reflection_class_loader(oop loader) { | |
| 2722 if (loader != NULL) { | |
| 2723 // See whether this is one of the class loaders associated with | |
| 2724 // the generated bytecodes for reflection, and if so, "magically" | |
| 2725 // delegate to its parent to prevent class loading from occurring | |
| 2726 // in places where applications using reflection didn't expect it. | |
| 1142 | 2727 klassOop delegating_cl_class = SystemDictionary::reflect_DelegatingClassLoader_klass(); |
| 0 | 2728 // This might be null in non-1.4 JDKs |
| 2729 if (delegating_cl_class != NULL && loader->is_a(delegating_cl_class)) { | |
| 2730 return parent(loader); | |
| 2731 } | |
| 2732 } | |
| 2733 return loader; | |
| 2734 } | |
| 2735 | |
| 2736 | |
| 2737 // Support for java_lang_System | |
| 2738 int java_lang_System::in_offset_in_bytes() { | |
|
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c7f3d0b4570f
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parents:
2357
diff
changeset
|
2739 return (instanceMirrorKlass::offset_of_static_fields() + static_in_offset); |
| 0 | 2740 } |
| 2741 | |
| 2742 | |
| 2743 int java_lang_System::out_offset_in_bytes() { | |
|
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parents:
2357
diff
changeset
|
2744 return (instanceMirrorKlass::offset_of_static_fields() + static_out_offset); |
| 0 | 2745 } |
| 2746 | |
| 2747 | |
| 2748 int java_lang_System::err_offset_in_bytes() { | |
|
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parents:
2357
diff
changeset
|
2749 return (instanceMirrorKlass::offset_of_static_fields() + static_err_offset); |
| 0 | 2750 } |
| 2751 | |
| 2752 | |
| 2753 | |
| 2754 int java_lang_String::value_offset; | |
| 2755 int java_lang_String::offset_offset; | |
| 2756 int java_lang_String::count_offset; | |
| 2757 int java_lang_String::hash_offset; | |
| 2758 int java_lang_Class::klass_offset; | |
| 2759 int java_lang_Class::array_klass_offset; | |
| 2760 int java_lang_Class::resolved_constructor_offset; | |
| 2761 int java_lang_Class::number_of_fake_oop_fields; | |
|
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2357
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|
2762 int java_lang_Class::oop_size_offset; |
|
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2357
diff
changeset
|
2763 int java_lang_Class::static_oop_field_count_offset; |
| 0 | 2764 int java_lang_Throwable::backtrace_offset; |
| 2765 int java_lang_Throwable::detailMessage_offset; | |
| 2766 int java_lang_Throwable::cause_offset; | |
| 2767 int java_lang_Throwable::stackTrace_offset; | |
| 2768 int java_lang_reflect_AccessibleObject::override_offset; | |
| 2769 int java_lang_reflect_Method::clazz_offset; | |
| 2770 int java_lang_reflect_Method::name_offset; | |
| 2771 int java_lang_reflect_Method::returnType_offset; | |
| 2772 int java_lang_reflect_Method::parameterTypes_offset; | |
| 2773 int java_lang_reflect_Method::exceptionTypes_offset; | |
| 2774 int java_lang_reflect_Method::slot_offset; | |
| 2775 int java_lang_reflect_Method::modifiers_offset; | |
| 2776 int java_lang_reflect_Method::signature_offset; | |
| 2777 int java_lang_reflect_Method::annotations_offset; | |
| 2778 int java_lang_reflect_Method::parameter_annotations_offset; | |
| 2779 int java_lang_reflect_Method::annotation_default_offset; | |
| 2780 int java_lang_reflect_Constructor::clazz_offset; | |
| 2781 int java_lang_reflect_Constructor::parameterTypes_offset; | |
| 2782 int java_lang_reflect_Constructor::exceptionTypes_offset; | |
| 2783 int java_lang_reflect_Constructor::slot_offset; | |
| 2784 int java_lang_reflect_Constructor::modifiers_offset; | |
| 2785 int java_lang_reflect_Constructor::signature_offset; | |
| 2786 int java_lang_reflect_Constructor::annotations_offset; | |
| 2787 int java_lang_reflect_Constructor::parameter_annotations_offset; | |
| 2788 int java_lang_reflect_Field::clazz_offset; | |
| 2789 int java_lang_reflect_Field::name_offset; | |
| 2790 int java_lang_reflect_Field::type_offset; | |
| 2791 int java_lang_reflect_Field::slot_offset; | |
| 2792 int java_lang_reflect_Field::modifiers_offset; | |
| 2793 int java_lang_reflect_Field::signature_offset; | |
| 2794 int java_lang_reflect_Field::annotations_offset; | |
| 2795 int java_lang_boxing_object::value_offset; | |
|
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|
2796 int java_lang_boxing_object::long_value_offset; |
| 0 | 2797 int java_lang_ref_Reference::referent_offset; |
| 2798 int java_lang_ref_Reference::queue_offset; | |
| 2799 int java_lang_ref_Reference::next_offset; | |
| 2800 int java_lang_ref_Reference::discovered_offset; | |
| 2801 int java_lang_ref_Reference::static_lock_offset; | |
| 2802 int java_lang_ref_Reference::static_pending_offset; | |
| 2803 int java_lang_ref_Reference::number_of_fake_oop_fields; | |
| 2804 int java_lang_ref_SoftReference::timestamp_offset; | |
| 2805 int java_lang_ref_SoftReference::static_clock_offset; | |
| 2806 int java_lang_ClassLoader::parent_offset; | |
| 2807 int java_lang_System::static_in_offset; | |
| 2808 int java_lang_System::static_out_offset; | |
| 2809 int java_lang_System::static_err_offset; | |
| 2810 int java_lang_StackTraceElement::declaringClass_offset; | |
| 2811 int java_lang_StackTraceElement::methodName_offset; | |
| 2812 int java_lang_StackTraceElement::fileName_offset; | |
| 2813 int java_lang_StackTraceElement::lineNumber_offset; | |
| 2814 int java_lang_AssertionStatusDirectives::classes_offset; | |
| 2815 int java_lang_AssertionStatusDirectives::classEnabled_offset; | |
| 2816 int java_lang_AssertionStatusDirectives::packages_offset; | |
| 2817 int java_lang_AssertionStatusDirectives::packageEnabled_offset; | |
| 2818 int java_lang_AssertionStatusDirectives::deflt_offset; | |
| 2819 int java_nio_Buffer::_limit_offset; | |
| 2820 int sun_misc_AtomicLongCSImpl::_value_offset; | |
| 2821 int java_util_concurrent_locks_AbstractOwnableSynchronizer::_owner_offset = 0; | |
| 2822 int sun_reflect_ConstantPool::_cp_oop_offset; | |
| 2823 int sun_reflect_UnsafeStaticFieldAccessorImpl::_base_offset; | |
| 2824 | |
| 2825 | |
| 2826 // Support for java_lang_StackTraceElement | |
| 2827 | |
| 2828 void java_lang_StackTraceElement::set_fileName(oop element, oop value) { | |
| 2829 element->obj_field_put(fileName_offset, value); | |
| 2830 } | |
| 2831 | |
| 2832 void java_lang_StackTraceElement::set_declaringClass(oop element, oop value) { | |
| 2833 element->obj_field_put(declaringClass_offset, value); | |
| 2834 } | |
| 2835 | |
| 2836 void java_lang_StackTraceElement::set_methodName(oop element, oop value) { | |
| 2837 element->obj_field_put(methodName_offset, value); | |
| 2838 } | |
| 2839 | |
| 2840 void java_lang_StackTraceElement::set_lineNumber(oop element, int value) { | |
| 2841 element->int_field_put(lineNumber_offset, value); | |
| 2842 } | |
| 2843 | |
| 2844 | |
| 2845 // Support for java Assertions - java_lang_AssertionStatusDirectives. | |
| 2846 | |
| 2847 void java_lang_AssertionStatusDirectives::set_classes(oop o, oop val) { | |
| 2848 o->obj_field_put(classes_offset, val); | |
| 2849 } | |
| 2850 | |
| 2851 void java_lang_AssertionStatusDirectives::set_classEnabled(oop o, oop val) { | |
| 2852 o->obj_field_put(classEnabled_offset, val); | |
| 2853 } | |
| 2854 | |
| 2855 void java_lang_AssertionStatusDirectives::set_packages(oop o, oop val) { | |
| 2856 o->obj_field_put(packages_offset, val); | |
| 2857 } | |
| 2858 | |
| 2859 void java_lang_AssertionStatusDirectives::set_packageEnabled(oop o, oop val) { | |
| 2860 o->obj_field_put(packageEnabled_offset, val); | |
| 2861 } | |
| 2862 | |
| 2863 void java_lang_AssertionStatusDirectives::set_deflt(oop o, bool val) { | |
| 2864 o->bool_field_put(deflt_offset, val); | |
| 2865 } | |
| 2866 | |
| 2867 | |
| 2868 // Support for intrinsification of java.nio.Buffer.checkIndex | |
| 2869 int java_nio_Buffer::limit_offset() { | |
| 2870 return _limit_offset; | |
| 2871 } | |
| 2872 | |
| 2873 | |
| 2874 void java_nio_Buffer::compute_offsets() { | |
| 2875 klassOop k = SystemDictionary::java_nio_Buffer_klass(); | |
|
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|
2876 assert(k != NULL, "must be loaded in 1.4+"); |
|
60b728ec77c1
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diff
changeset
|
2877 compute_offset(_limit_offset, k, vmSymbols::limit_name(), vmSymbols::int_signature()); |
| 0 | 2878 } |
| 2879 | |
| 2880 // Support for intrinsification of sun.misc.AtomicLongCSImpl.attemptUpdate | |
| 2881 int sun_misc_AtomicLongCSImpl::value_offset() { | |
| 2882 assert(SystemDictionary::sun_misc_AtomicLongCSImpl_klass() != NULL, "can't call this"); | |
| 2883 return _value_offset; | |
| 2884 } | |
| 2885 | |
| 2886 | |
| 2887 void sun_misc_AtomicLongCSImpl::compute_offsets() { | |
| 2888 klassOop k = SystemDictionary::sun_misc_AtomicLongCSImpl_klass(); | |
| 2889 // If this class is not present, its value field offset won't be referenced. | |
| 2890 if (k != NULL) { | |
|
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|
2891 compute_offset(_value_offset, k, vmSymbols::value_name(), vmSymbols::long_signature()); |
| 0 | 2892 } |
| 2893 } | |
| 2894 | |
| 2895 void java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(TRAPS) { | |
| 2896 if (_owner_offset != 0) return; | |
| 2897 | |
| 2898 assert(JDK_Version::is_gte_jdk16x_version(), "Must be JDK 1.6 or later"); | |
| 2899 SystemDictionary::load_abstract_ownable_synchronizer_klass(CHECK); | |
| 2900 klassOop k = SystemDictionary::abstract_ownable_synchronizer_klass(); | |
|
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|
2901 compute_offset(_owner_offset, k, |
| 0 | 2902 vmSymbols::exclusive_owner_thread_name(), vmSymbols::thread_signature()); |
| 2903 } | |
| 2904 | |
| 2905 oop java_util_concurrent_locks_AbstractOwnableSynchronizer::get_owner_threadObj(oop obj) { | |
| 2906 assert(_owner_offset != 0, "Must be initialized"); | |
| 2907 return obj->obj_field(_owner_offset); | |
| 2908 } | |
| 2909 | |
| 2910 // Compute hard-coded offsets | |
| 2911 // Invoked before SystemDictionary::initialize, so pre-loaded classes | |
| 2912 // are not available to determine the offset_of_static_fields. | |
| 2913 void JavaClasses::compute_hard_coded_offsets() { | |
|
113
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6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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98
diff
changeset
|
2914 const int x = heapOopSize; |
|
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|
2915 const int header = instanceOopDesc::base_offset_in_bytes(); |
| 0 | 2916 |
| 2917 // Do the String Class | |
| 2918 java_lang_String::value_offset = java_lang_String::hc_value_offset * x + header; | |
| 2919 java_lang_String::offset_offset = java_lang_String::hc_offset_offset * x + header; | |
| 2920 java_lang_String::count_offset = java_lang_String::offset_offset + sizeof (jint); | |
| 2921 java_lang_String::hash_offset = java_lang_String::count_offset + sizeof (jint); | |
| 2922 | |
|
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|
2923 { |
|
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parents:
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|
2924 // Do the Class Class |
|
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7017732: move static fields into Class to prepare for perm gen removal
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parents:
2357
diff
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|
2925 int offset = header; |
|
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parents:
2357
diff
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|
2926 java_lang_Class::oop_size_offset = header; |
|
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never
parents:
2357
diff
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|
2927 offset += BytesPerInt; |
|
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never
parents:
2357
diff
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|
2928 java_lang_Class::static_oop_field_count_offset = offset; |
|
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parents:
2357
diff
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|
2929 offset = align_size_up(offset + BytesPerInt, x); |
|
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parents:
2357
diff
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|
2930 java_lang_Class::klass_offset = offset; |
|
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7017732: move static fields into Class to prepare for perm gen removal
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parents:
2357
diff
changeset
|
2931 offset += x; |
|
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parents:
2357
diff
changeset
|
2932 java_lang_Class::array_klass_offset = offset; |
|
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parents:
2357
diff
changeset
|
2933 offset += x; |
|
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parents:
2357
diff
changeset
|
2934 java_lang_Class::resolved_constructor_offset = offset; |
|
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2357
diff
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|
2935 } |
| 0 | 2936 |
| 2937 // This is NOT an offset | |
| 2938 java_lang_Class::number_of_fake_oop_fields = java_lang_Class::hc_number_of_fake_oop_fields; | |
| 2939 | |
| 2940 // Throwable Class | |
| 2941 java_lang_Throwable::backtrace_offset = java_lang_Throwable::hc_backtrace_offset * x + header; | |
| 2942 java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header; | |
| 2943 java_lang_Throwable::cause_offset = java_lang_Throwable::hc_cause_offset * x + header; | |
| 2944 java_lang_Throwable::stackTrace_offset = java_lang_Throwable::hc_stackTrace_offset * x + header; | |
| 2945 | |
| 2946 // java_lang_boxing_object | |
|
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|
2947 java_lang_boxing_object::value_offset = java_lang_boxing_object::hc_value_offset + header; |
|
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|
2948 java_lang_boxing_object::long_value_offset = align_size_up((java_lang_boxing_object::hc_value_offset + header), BytesPerLong); |
| 0 | 2949 |
| 2950 // java_lang_ref_Reference: | |
| 2951 java_lang_ref_Reference::referent_offset = java_lang_ref_Reference::hc_referent_offset * x + header; | |
| 2952 java_lang_ref_Reference::queue_offset = java_lang_ref_Reference::hc_queue_offset * x + header; | |
| 2953 java_lang_ref_Reference::next_offset = java_lang_ref_Reference::hc_next_offset * x + header; | |
| 2954 java_lang_ref_Reference::discovered_offset = java_lang_ref_Reference::hc_discovered_offset * x + header; | |
| 2955 java_lang_ref_Reference::static_lock_offset = java_lang_ref_Reference::hc_static_lock_offset * x; | |
| 2956 java_lang_ref_Reference::static_pending_offset = java_lang_ref_Reference::hc_static_pending_offset * x; | |
| 2957 // Artificial fields for java_lang_ref_Reference | |
| 2958 // The first field is for the discovered field added in 1.4 | |
| 2959 java_lang_ref_Reference::number_of_fake_oop_fields = 1; | |
| 2960 | |
| 2961 // java_lang_ref_SoftReference Class | |
|
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|
2962 java_lang_ref_SoftReference::timestamp_offset = align_size_up((java_lang_ref_SoftReference::hc_timestamp_offset * x + header), BytesPerLong); |
| 0 | 2963 // Don't multiply static fields because they are always in wordSize units |
| 2964 java_lang_ref_SoftReference::static_clock_offset = java_lang_ref_SoftReference::hc_static_clock_offset * x; | |
| 2965 | |
| 2966 // java_lang_ClassLoader | |
| 2967 java_lang_ClassLoader::parent_offset = java_lang_ClassLoader::hc_parent_offset * x + header; | |
| 2968 | |
| 2969 // java_lang_System | |
| 2970 java_lang_System::static_in_offset = java_lang_System::hc_static_in_offset * x; | |
| 2971 java_lang_System::static_out_offset = java_lang_System::hc_static_out_offset * x; | |
| 2972 java_lang_System::static_err_offset = java_lang_System::hc_static_err_offset * x; | |
| 2973 | |
| 2974 // java_lang_StackTraceElement | |
| 2975 java_lang_StackTraceElement::declaringClass_offset = java_lang_StackTraceElement::hc_declaringClass_offset * x + header; | |
| 2976 java_lang_StackTraceElement::methodName_offset = java_lang_StackTraceElement::hc_methodName_offset * x + header; | |
| 2977 java_lang_StackTraceElement::fileName_offset = java_lang_StackTraceElement::hc_fileName_offset * x + header; | |
| 2978 java_lang_StackTraceElement::lineNumber_offset = java_lang_StackTraceElement::hc_lineNumber_offset * x + header; | |
| 2979 java_lang_AssertionStatusDirectives::classes_offset = java_lang_AssertionStatusDirectives::hc_classes_offset * x + header; | |
| 2980 java_lang_AssertionStatusDirectives::classEnabled_offset = java_lang_AssertionStatusDirectives::hc_classEnabled_offset * x + header; | |
| 2981 java_lang_AssertionStatusDirectives::packages_offset = java_lang_AssertionStatusDirectives::hc_packages_offset * x + header; | |
| 2982 java_lang_AssertionStatusDirectives::packageEnabled_offset = java_lang_AssertionStatusDirectives::hc_packageEnabled_offset * x + header; | |
| 2983 java_lang_AssertionStatusDirectives::deflt_offset = java_lang_AssertionStatusDirectives::hc_deflt_offset * x + header; | |
| 2984 | |
| 2985 } | |
| 2986 | |
| 2987 | |
| 2988 // Compute non-hard-coded field offsets of all the classes in this file | |
| 2989 void JavaClasses::compute_offsets() { | |
| 2990 | |
| 2991 java_lang_Class::compute_offsets(); | |
| 2992 java_lang_Thread::compute_offsets(); | |
| 2993 java_lang_ThreadGroup::compute_offsets(); | |
| 710 | 2994 if (EnableMethodHandles) { |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2995 java_lang_invoke_MethodHandle::compute_offsets(); |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2996 java_lang_invoke_MemberName::compute_offsets(); |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2997 java_lang_invoke_DirectMethodHandle::compute_offsets(); |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2998 java_lang_invoke_BoundMethodHandle::compute_offsets(); |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2999 java_lang_invoke_AdapterMethodHandle::compute_offsets(); |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
3000 java_lang_invoke_MethodType::compute_offsets(); |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
3001 java_lang_invoke_MethodTypeForm::compute_offsets(); |
| 710 | 3002 } |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
3003 if (EnableInvokeDynamic) { |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
3004 java_lang_invoke_CallSite::compute_offsets(); |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
3005 } |
| 0 | 3006 java_security_AccessControlContext::compute_offsets(); |
| 3007 // Initialize reflection classes. The layouts of these classes | |
| 3008 // changed with the new reflection implementation in JDK 1.4, and | |
| 3009 // since the Universe doesn't know what JDK version it is until this | |
| 3010 // point we defer computation of these offsets until now. | |
| 3011 java_lang_reflect_AccessibleObject::compute_offsets(); | |
| 3012 java_lang_reflect_Method::compute_offsets(); | |
| 3013 java_lang_reflect_Constructor::compute_offsets(); | |
| 3014 java_lang_reflect_Field::compute_offsets(); | |
| 3015 if (JDK_Version::is_gte_jdk14x_version()) { | |
| 3016 java_nio_Buffer::compute_offsets(); | |
| 3017 } | |
| 3018 if (JDK_Version::is_gte_jdk15x_version()) { | |
| 3019 sun_reflect_ConstantPool::compute_offsets(); | |
| 3020 sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets(); | |
| 3021 } | |
| 3022 sun_misc_AtomicLongCSImpl::compute_offsets(); | |
| 710 | 3023 |
| 3024 // generated interpreter code wants to know about the offsets we just computed: | |
| 3025 AbstractAssembler::update_delayed_values(); | |
| 0 | 3026 } |
| 3027 | |
| 3028 #ifndef PRODUCT | |
| 3029 | |
| 3030 // These functions exist to assert the validity of hard-coded field offsets to guard | |
| 3031 // against changes in the class files | |
| 3032 | |
| 3033 bool JavaClasses::check_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
| 3034 EXCEPTION_MARK; | |
| 3035 fieldDescriptor fd; | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3036 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
| 0 | 3037 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
| 3038 instanceKlassHandle h_klass (THREAD, k); | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3039 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
|
3040 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
|
3041 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
| 0 | 3042 tty->print_cr("Nonstatic field %s.%s not found", klass_name, field_name); |
| 3043 return false; | |
| 3044 } | |
| 3045 if (fd.is_static()) { | |
| 3046 tty->print_cr("Nonstatic field %s.%s appears to be static", klass_name, field_name); | |
| 3047 return false; | |
| 3048 } | |
| 3049 if (fd.offset() == hardcoded_offset ) { | |
| 3050 return true; | |
| 3051 } else { | |
| 3052 tty->print_cr("Offset of nonstatic field %s.%s is hardcoded as %d but should really be %d.", | |
| 3053 klass_name, field_name, hardcoded_offset, fd.offset()); | |
| 3054 return false; | |
| 3055 } | |
| 3056 } | |
| 3057 | |
| 3058 | |
| 3059 bool JavaClasses::check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
| 3060 EXCEPTION_MARK; | |
| 3061 fieldDescriptor fd; | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3062 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
| 0 | 3063 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
| 3064 instanceKlassHandle h_klass (THREAD, k); | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3065 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
|
3066 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
|
3067 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
| 0 | 3068 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
| 3069 return false; | |
| 3070 } | |
| 3071 if (!fd.is_static()) { | |
| 3072 tty->print_cr("Static field %s.%s appears to be nonstatic", klass_name, field_name); | |
| 3073 return false; | |
| 3074 } | |
|
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
3075 if (fd.offset() == hardcoded_offset + instanceMirrorKlass::offset_of_static_fields()) { |
| 0 | 3076 return true; |
| 3077 } else { | |
|
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
3078 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 | 3079 return false; |
| 3080 } | |
| 3081 } | |
| 3082 | |
| 3083 | |
|
132
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jrose
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113
diff
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|
3084 bool JavaClasses::check_constant(const char *klass_name, int hardcoded_constant, const char *field_name, const char* field_sig) { |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3085 EXCEPTION_MARK; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3086 fieldDescriptor fd; |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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diff
changeset
|
3087 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
|
132
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113
diff
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|
3088 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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113
diff
changeset
|
3089 instanceKlassHandle h_klass (THREAD, k); |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3090 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
|
3091 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
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|
3092 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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|
3093 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
|
3094 return false; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3095 } |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3096 if (!fd.is_static() || !fd.has_initial_value()) { |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3097 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
|
3098 return false; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3099 } |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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113
diff
changeset
|
3100 if (!fd.initial_value_tag().is_int()) { |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
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|
3101 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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|
3102 return false; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3103 } |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3104 jint field_value = fd.int_initial_value(); |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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113
diff
changeset
|
3105 if (field_value == hardcoded_constant) { |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3106 return true; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3107 } else { |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3108 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
|
3109 return false; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3110 } |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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113
diff
changeset
|
3111 } |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3112 |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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113
diff
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|
3113 |
| 0 | 3114 // Check the hard-coded field offsets of all the classes in this file |
| 3115 | |
| 3116 void JavaClasses::check_offsets() { | |
| 3117 bool valid = true; | |
| 3118 | |
| 3119 #define CHECK_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ | |
| 3120 valid &= check_offset(klass_name, cpp_klass_name :: field_name ## _offset, #field_name, field_sig) | |
| 3121 | |
|
165
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3122 #define CHECK_LONG_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
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3123 valid &= check_offset(klass_name, cpp_klass_name :: long_ ## field_name ## _offset, #field_name, field_sig) |
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3124 |
| 0 | 3125 #define CHECK_STATIC_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
| 3126 valid &= check_static_offset(klass_name, cpp_klass_name :: static_ ## field_name ## _offset, #field_name, field_sig) | |
| 3127 | |
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3128 #define CHECK_CONSTANT(klass_name, cpp_klass_name, field_name, field_sig) \ |
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3129 valid &= check_constant(klass_name, cpp_klass_name :: field_name, #field_name, field_sig) |
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3130 |
| 0 | 3131 // java.lang.String |
| 3132 | |
| 3133 CHECK_OFFSET("java/lang/String", java_lang_String, value, "[C"); | |
| 3134 CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I"); | |
| 3135 CHECK_OFFSET("java/lang/String", java_lang_String, count, "I"); | |
| 3136 CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I"); | |
| 3137 | |
| 3138 // java.lang.Class | |
| 3139 | |
| 3140 // Fake fields | |
| 3141 // CHECK_OFFSET("java/lang/Class", java_lang_Class, klass); // %%% this needs to be checked | |
| 3142 // CHECK_OFFSET("java/lang/Class", java_lang_Class, array_klass); // %%% this needs to be checked | |
| 3143 // CHECK_OFFSET("java/lang/Class", java_lang_Class, resolved_constructor); // %%% this needs to be checked | |
| 3144 | |
| 3145 // java.lang.Throwable | |
| 3146 | |
| 3147 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, backtrace, "Ljava/lang/Object;"); | |
| 3148 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, detailMessage, "Ljava/lang/String;"); | |
| 3149 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, cause, "Ljava/lang/Throwable;"); | |
| 3150 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, stackTrace, "[Ljava/lang/StackTraceElement;"); | |
| 3151 | |
| 3152 // Boxed primitive objects (java_lang_boxing_object) | |
| 3153 | |
| 3154 CHECK_OFFSET("java/lang/Boolean", java_lang_boxing_object, value, "Z"); | |
| 3155 CHECK_OFFSET("java/lang/Character", java_lang_boxing_object, value, "C"); | |
| 3156 CHECK_OFFSET("java/lang/Float", java_lang_boxing_object, value, "F"); | |
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3157 CHECK_LONG_OFFSET("java/lang/Double", java_lang_boxing_object, value, "D"); |
| 0 | 3158 CHECK_OFFSET("java/lang/Byte", java_lang_boxing_object, value, "B"); |
| 3159 CHECK_OFFSET("java/lang/Short", java_lang_boxing_object, value, "S"); | |
| 3160 CHECK_OFFSET("java/lang/Integer", java_lang_boxing_object, value, "I"); | |
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3161 CHECK_LONG_OFFSET("java/lang/Long", java_lang_boxing_object, value, "J"); |
| 0 | 3162 |
| 3163 // java.lang.ClassLoader | |
| 3164 | |
| 3165 CHECK_OFFSET("java/lang/ClassLoader", java_lang_ClassLoader, parent, "Ljava/lang/ClassLoader;"); | |
| 3166 | |
| 3167 // java.lang.System | |
| 3168 | |
| 3169 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, in, "Ljava/io/InputStream;"); | |
| 3170 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, out, "Ljava/io/PrintStream;"); | |
| 3171 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, err, "Ljava/io/PrintStream;"); | |
| 3172 | |
| 3173 // java.lang.StackTraceElement | |
| 3174 | |
| 3175 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClass, "Ljava/lang/String;"); | |
| 3176 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, methodName, "Ljava/lang/String;"); | |
| 3177 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, fileName, "Ljava/lang/String;"); | |
| 3178 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, lineNumber, "I"); | |
| 3179 | |
| 3180 // java.lang.ref.Reference | |
| 3181 | |
| 3182 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, referent, "Ljava/lang/Object;"); | |
| 3183 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, queue, "Ljava/lang/ref/ReferenceQueue;"); | |
| 3184 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, next, "Ljava/lang/ref/Reference;"); | |
| 3185 // Fake field | |
| 3186 //CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, discovered, "Ljava/lang/ref/Reference;"); | |
| 3187 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, lock, "Ljava/lang/ref/Reference$Lock;"); | |
| 3188 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, pending, "Ljava/lang/ref/Reference;"); | |
| 3189 | |
| 3190 // java.lang.ref.SoftReference | |
| 3191 | |
| 3192 CHECK_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, timestamp, "J"); | |
| 3193 CHECK_STATIC_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, clock, "J"); | |
| 3194 | |
| 3195 // java.lang.AssertionStatusDirectives | |
| 3196 // | |
| 3197 // The CheckAssertionStatusDirectives boolean can be removed from here and | |
| 3198 // globals.hpp after the AssertionStatusDirectives class has been integrated | |
| 3199 // into merlin "for some time." Without it, the vm will fail with early | |
| 3200 // merlin builds. | |
| 3201 | |
| 3202 if (CheckAssertionStatusDirectives && JDK_Version::is_gte_jdk14x_version()) { | |
| 3203 const char* nm = "java/lang/AssertionStatusDirectives"; | |
| 3204 const char* sig = "[Ljava/lang/String;"; | |
| 3205 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classes, sig); | |
| 3206 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classEnabled, "[Z"); | |
| 3207 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packages, sig); | |
| 3208 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packageEnabled, "[Z"); | |
| 3209 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, deflt, "Z"); | |
| 3210 } | |
| 3211 | |
| 3212 if (!valid) vm_exit_during_initialization("Hard-coded field offset verification failed"); | |
| 3213 } | |
| 3214 | |
| 3215 #endif // PRODUCT | |
| 3216 | |
| 3217 void javaClasses_init() { | |
| 3218 JavaClasses::compute_offsets(); | |
| 3219 JavaClasses::check_offsets(); | |
| 3220 FilteredFieldsMap::initialize(); // must be done after computing offsets. | |
| 3221 } |