Mercurial > hg > truffle
annotate src/share/vm/classfile/javaClasses.cpp @ 2357:8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
Summary: package and class renaming only; delete unused methods and classes
Reviewed-by: twisti
| author | jrose |
|---|---|
| date | Fri, 11 Mar 2011 22:34:57 -0800 |
| parents | 72dee110246f |
| children | c7f3d0b4570f |
| 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" | |
| 36 #include "oops/klass.hpp" | |
| 37 #include "oops/klassOop.hpp" | |
| 38 #include "oops/methodOop.hpp" | |
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39 #include "oops/symbol.hpp" |
| 1972 | 40 #include "oops/typeArrayOop.hpp" |
| 41 #include "runtime/fieldDescriptor.hpp" | |
| 42 #include "runtime/handles.inline.hpp" | |
| 43 #include "runtime/interfaceSupport.hpp" | |
| 44 #include "runtime/java.hpp" | |
| 45 #include "runtime/javaCalls.hpp" | |
| 46 #include "runtime/safepoint.hpp" | |
| 47 #include "runtime/vframe.hpp" | |
| 48 #include "utilities/preserveException.hpp" | |
| 49 #ifdef TARGET_OS_FAMILY_linux | |
| 50 # include "thread_linux.inline.hpp" | |
| 51 #endif | |
| 52 #ifdef TARGET_OS_FAMILY_solaris | |
| 53 # include "thread_solaris.inline.hpp" | |
| 54 #endif | |
| 55 #ifdef TARGET_OS_FAMILY_windows | |
| 56 # include "thread_windows.inline.hpp" | |
| 57 #endif | |
| 0 | 58 |
| 710 | 59 static bool find_field(instanceKlass* ik, |
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60 Symbol* name_symbol, Symbol* signature_symbol, |
| 710 | 61 fieldDescriptor* fd, |
| 62 bool allow_super = false) { | |
| 63 if (allow_super) | |
| 64 return ik->find_field(name_symbol, signature_symbol, fd) != NULL; | |
| 65 else | |
| 66 return ik->find_local_field(name_symbol, signature_symbol, fd); | |
| 67 } | |
| 68 | |
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69 static bool find_hacked_field(instanceKlass* ik, |
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70 Symbol* name_symbol, Symbol* signature_symbol, |
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71 fieldDescriptor* fd, |
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72 bool allow_super = false) { |
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73 bool found = find_field(ik, name_symbol, signature_symbol, fd, allow_super); |
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74 if (!found && AllowTransitionalJSR292) { |
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75 Symbol* backup_sig = SystemDictionary::find_backup_signature(signature_symbol); |
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76 if (backup_sig != NULL) { |
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77 found = find_field(ik, name_symbol, backup_sig, fd, allow_super); |
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78 if (TraceMethodHandles) { |
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79 ResourceMark rm; |
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80 tty->print_cr("MethodHandles: %s.%s: backup for %s => %s%s", |
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81 ik->name()->as_C_string(), name_symbol->as_C_string(), |
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82 signature_symbol->as_C_string(), backup_sig->as_C_string(), |
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83 (found ? "" : " (NOT FOUND)")); |
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84 } |
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85 } |
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86 } |
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87 return found; |
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88 } |
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89 #define find_field find_hacked_field /* remove after AllowTransitionalJSR292 */ |
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90 |
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91 // Helpful routine for computing field offsets at run time rather than hardcoding them |
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92 static void |
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93 compute_offset(int &dest_offset, |
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94 klassOop klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
| 710 | 95 bool allow_super = false) { |
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96 fieldDescriptor fd; |
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97 instanceKlass* ik = instanceKlass::cast(klass_oop); |
| 710 | 98 if (!find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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99 ResourceMark rm; |
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100 tty->print_cr("Invalid layout of %s at %s", ik->external_name(), name_symbol->as_C_string()); |
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101 fatal("Invalid layout of preloaded class"); |
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102 } |
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103 dest_offset = fd.offset(); |
| 0 | 104 } |
| 105 | |
| 106 // Same as above but for "optional" offsets that might not be present in certain JDK versions | |
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107 static void |
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108 compute_optional_offset(int& dest_offset, |
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109 klassOop klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
| 710 | 110 bool allow_super = false) { |
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111 fieldDescriptor fd; |
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112 instanceKlass* ik = instanceKlass::cast(klass_oop); |
| 710 | 113 if (find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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114 dest_offset = fd.offset(); |
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115 } |
| 0 | 116 } |
| 117 | |
| 710 | 118 |
| 0 | 119 Handle java_lang_String::basic_create(int length, bool tenured, TRAPS) { |
| 120 // Create the String object first, so there's a chance that the String | |
| 121 // and the char array it points to end up in the same cache line. | |
| 122 oop obj; | |
| 123 if (tenured) { | |
| 1142 | 124 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_permanent_instance(CHECK_NH); |
| 0 | 125 } else { |
| 1142 | 126 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_instance(CHECK_NH); |
| 0 | 127 } |
| 128 | |
| 129 // Create the char array. The String object must be handlized here | |
| 130 // because GC can happen as a result of the allocation attempt. | |
| 131 Handle h_obj(THREAD, obj); | |
| 132 typeArrayOop buffer; | |
| 133 if (tenured) { | |
| 134 buffer = oopFactory::new_permanent_charArray(length, CHECK_NH); | |
| 135 } else { | |
| 136 buffer = oopFactory::new_charArray(length, CHECK_NH); | |
| 137 } | |
| 138 | |
| 139 // Point the String at the char array | |
| 140 obj = h_obj(); | |
| 141 set_value(obj, buffer); | |
| 142 // No need to zero the offset, allocation zero'ed the entire String object | |
| 143 assert(offset(obj) == 0, "initial String offset should be zero"); | |
| 144 //set_offset(obj, 0); | |
| 145 set_count(obj, length); | |
| 146 | |
| 147 return h_obj; | |
| 148 } | |
| 149 | |
| 150 Handle java_lang_String::basic_create_from_unicode(jchar* unicode, int length, bool tenured, TRAPS) { | |
| 151 Handle h_obj = basic_create(length, tenured, CHECK_NH); | |
| 152 typeArrayOop buffer = value(h_obj()); | |
| 153 for (int index = 0; index < length; index++) { | |
| 154 buffer->char_at_put(index, unicode[index]); | |
| 155 } | |
| 156 return h_obj; | |
| 157 } | |
| 158 | |
| 159 Handle java_lang_String::create_from_unicode(jchar* unicode, int length, TRAPS) { | |
| 160 return basic_create_from_unicode(unicode, length, false, CHECK_NH); | |
| 161 } | |
| 162 | |
| 163 Handle java_lang_String::create_tenured_from_unicode(jchar* unicode, int length, TRAPS) { | |
| 164 return basic_create_from_unicode(unicode, length, true, CHECK_NH); | |
| 165 } | |
| 166 | |
| 167 oop java_lang_String::create_oop_from_unicode(jchar* unicode, int length, TRAPS) { | |
| 168 Handle h_obj = basic_create_from_unicode(unicode, length, false, CHECK_0); | |
| 169 return h_obj(); | |
| 170 } | |
| 171 | |
| 172 Handle java_lang_String::create_from_str(const char* utf8_str, TRAPS) { | |
| 173 if (utf8_str == NULL) { | |
| 174 return Handle(); | |
| 175 } | |
| 176 int length = UTF8::unicode_length(utf8_str); | |
| 177 Handle h_obj = basic_create(length, false, CHECK_NH); | |
| 178 if (length > 0) { | |
| 179 UTF8::convert_to_unicode(utf8_str, value(h_obj())->char_at_addr(0), length); | |
| 180 } | |
| 181 return h_obj; | |
| 182 } | |
| 183 | |
| 184 oop java_lang_String::create_oop_from_str(const char* utf8_str, TRAPS) { | |
| 185 Handle h_obj = create_from_str(utf8_str, CHECK_0); | |
| 186 return h_obj(); | |
| 187 } | |
| 188 | |
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189 Handle java_lang_String::create_from_symbol(Symbol* symbol, TRAPS) { |
| 0 | 190 int length = UTF8::unicode_length((char*)symbol->bytes(), symbol->utf8_length()); |
| 191 Handle h_obj = basic_create(length, false, CHECK_NH); | |
| 192 if (length > 0) { | |
| 193 UTF8::convert_to_unicode((char*)symbol->bytes(), value(h_obj())->char_at_addr(0), length); | |
| 194 } | |
| 195 return h_obj; | |
| 196 } | |
| 197 | |
| 198 // Converts a C string to a Java String based on current encoding | |
| 199 Handle java_lang_String::create_from_platform_dependent_str(const char* str, TRAPS) { | |
| 200 assert(str != NULL, "bad arguments"); | |
| 201 | |
| 202 typedef jstring (*to_java_string_fn_t)(JNIEnv*, const char *); | |
| 203 static to_java_string_fn_t _to_java_string_fn = NULL; | |
| 204 | |
| 205 if (_to_java_string_fn == NULL) { | |
| 206 void *lib_handle = os::native_java_library(); | |
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207 _to_java_string_fn = CAST_TO_FN_PTR(to_java_string_fn_t, os::dll_lookup(lib_handle, "NewStringPlatform")); |
| 0 | 208 if (_to_java_string_fn == NULL) { |
| 209 fatal("NewStringPlatform missing"); | |
| 210 } | |
| 211 } | |
| 212 | |
| 213 jstring js = NULL; | |
| 214 { JavaThread* thread = (JavaThread*)THREAD; | |
| 215 assert(thread->is_Java_thread(), "must be java thread"); | |
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216 HandleMark hm(thread); |
| 0 | 217 ThreadToNativeFromVM ttn(thread); |
| 218 js = (_to_java_string_fn)(thread->jni_environment(), str); | |
| 219 } | |
| 220 return Handle(THREAD, JNIHandles::resolve(js)); | |
| 221 } | |
| 222 | |
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223 // Converts a Java String to a native C string that can be used for |
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224 // native OS calls. |
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225 char* java_lang_String::as_platform_dependent_str(Handle java_string, TRAPS) { |
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226 |
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227 typedef char* (*to_platform_string_fn_t)(JNIEnv*, jstring, bool*); |
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228 static to_platform_string_fn_t _to_platform_string_fn = NULL; |
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229 |
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230 if (_to_platform_string_fn == NULL) { |
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231 void *lib_handle = os::native_java_library(); |
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232 _to_platform_string_fn = CAST_TO_FN_PTR(to_platform_string_fn_t, os::dll_lookup(lib_handle, "GetStringPlatformChars")); |
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233 if (_to_platform_string_fn == NULL) { |
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234 fatal("GetStringPlatformChars missing"); |
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235 } |
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236 } |
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237 |
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238 char *native_platform_string; |
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239 { JavaThread* thread = (JavaThread*)THREAD; |
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240 assert(thread->is_Java_thread(), "must be java thread"); |
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241 JNIEnv *env = thread->jni_environment(); |
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242 jstring js = (jstring) JNIHandles::make_local(env, java_string()); |
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243 bool is_copy; |
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244 HandleMark hm(thread); |
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245 ThreadToNativeFromVM ttn(thread); |
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246 native_platform_string = (_to_platform_string_fn)(env, js, &is_copy); |
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247 assert(is_copy == JNI_TRUE, "is_copy value changed"); |
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248 JNIHandles::destroy_local(js); |
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249 } |
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250 return native_platform_string; |
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251 } |
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252 |
| 0 | 253 Handle java_lang_String::char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS) { |
| 254 oop obj = java_string(); | |
| 255 // Typical usage is to convert all '/' to '.' in string. | |
| 256 typeArrayOop value = java_lang_String::value(obj); | |
| 257 int offset = java_lang_String::offset(obj); | |
| 258 int length = java_lang_String::length(obj); | |
| 259 | |
| 260 // First check if any from_char exist | |
| 261 int index; // Declared outside, used later | |
| 262 for (index = 0; index < length; index++) { | |
| 263 if (value->char_at(index + offset) == from_char) { | |
| 264 break; | |
| 265 } | |
| 266 } | |
| 267 if (index == length) { | |
| 268 // No from_char, so do not copy. | |
| 269 return java_string; | |
| 270 } | |
| 271 | |
| 272 // Create new UNICODE buffer. Must handlize value because GC | |
| 273 // may happen during String and char array creation. | |
| 274 typeArrayHandle h_value(THREAD, value); | |
| 275 Handle string = basic_create(length, false, CHECK_NH); | |
| 276 | |
| 277 typeArrayOop from_buffer = h_value(); | |
| 278 typeArrayOop to_buffer = java_lang_String::value(string()); | |
| 279 | |
| 280 // Copy contents | |
| 281 for (index = 0; index < length; index++) { | |
| 282 jchar c = from_buffer->char_at(index + offset); | |
| 283 if (c == from_char) { | |
| 284 c = to_char; | |
| 285 } | |
| 286 to_buffer->char_at_put(index, c); | |
| 287 } | |
| 288 return string; | |
| 289 } | |
| 290 | |
| 291 jchar* java_lang_String::as_unicode_string(oop java_string, int& length) { | |
| 292 typeArrayOop value = java_lang_String::value(java_string); | |
| 293 int offset = java_lang_String::offset(java_string); | |
| 294 length = java_lang_String::length(java_string); | |
| 295 | |
| 296 jchar* result = NEW_RESOURCE_ARRAY(jchar, length); | |
| 297 for (int index = 0; index < length; index++) { | |
| 298 result[index] = value->char_at(index + offset); | |
| 299 } | |
| 300 return result; | |
| 301 } | |
| 302 | |
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303 Symbol* java_lang_String::as_symbol(Handle java_string, TRAPS) { |
| 0 | 304 oop obj = java_string(); |
| 305 typeArrayOop value = java_lang_String::value(obj); | |
| 306 int offset = java_lang_String::offset(obj); | |
| 307 int length = java_lang_String::length(obj); | |
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308 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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309 Symbol* sym = SymbolTable::lookup_unicode(base, length, THREAD); |
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310 return sym; |
| 0 | 311 } |
| 312 | |
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313 Symbol* java_lang_String::as_symbol_or_null(oop java_string) { |
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314 typeArrayOop value = java_lang_String::value(java_string); |
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315 int offset = java_lang_String::offset(java_string); |
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316 int length = java_lang_String::length(java_string); |
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317 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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318 return SymbolTable::probe_unicode(base, length); |
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319 } |
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320 |
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321 |
| 0 | 322 int java_lang_String::utf8_length(oop java_string) { |
| 323 typeArrayOop value = java_lang_String::value(java_string); | |
| 324 int offset = java_lang_String::offset(java_string); | |
| 325 int length = java_lang_String::length(java_string); | |
| 326 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
| 327 return UNICODE::utf8_length(position, length); | |
| 328 } | |
| 329 | |
| 330 char* java_lang_String::as_utf8_string(oop java_string) { | |
| 331 typeArrayOop value = java_lang_String::value(java_string); | |
| 332 int offset = java_lang_String::offset(java_string); | |
| 333 int length = java_lang_String::length(java_string); | |
| 334 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
| 335 return UNICODE::as_utf8(position, length); | |
| 336 } | |
| 337 | |
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338 char* java_lang_String::as_utf8_string(oop java_string, char* buf, int buflen) { |
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339 typeArrayOop value = java_lang_String::value(java_string); |
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340 int offset = java_lang_String::offset(java_string); |
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341 int length = java_lang_String::length(java_string); |
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342 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); |
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343 return UNICODE::as_utf8(position, length, buf, buflen); |
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344 } |
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345 |
| 0 | 346 char* java_lang_String::as_utf8_string(oop java_string, int start, int len) { |
| 347 typeArrayOop value = java_lang_String::value(java_string); | |
| 348 int offset = java_lang_String::offset(java_string); | |
| 349 int length = java_lang_String::length(java_string); | |
| 350 assert(start + len <= length, "just checking"); | |
| 351 jchar* position = value->char_at_addr(offset + start); | |
| 352 return UNICODE::as_utf8(position, len); | |
| 353 } | |
| 354 | |
| 355 bool java_lang_String::equals(oop java_string, jchar* chars, int len) { | |
| 356 assert(SharedSkipVerify || | |
| 1142 | 357 java_string->klass() == SystemDictionary::String_klass(), |
| 0 | 358 "must be java_string"); |
| 359 typeArrayOop value = java_lang_String::value(java_string); | |
| 360 int offset = java_lang_String::offset(java_string); | |
| 361 int length = java_lang_String::length(java_string); | |
| 362 if (length != len) { | |
| 363 return false; | |
| 364 } | |
| 365 for (int i = 0; i < len; i++) { | |
| 366 if (value->char_at(i + offset) != chars[i]) { | |
| 367 return false; | |
| 368 } | |
| 369 } | |
| 370 return true; | |
| 371 } | |
| 372 | |
| 373 void java_lang_String::print(Handle java_string, outputStream* st) { | |
| 374 oop obj = java_string(); | |
| 1142 | 375 assert(obj->klass() == SystemDictionary::String_klass(), "must be java_string"); |
| 0 | 376 typeArrayOop value = java_lang_String::value(obj); |
| 377 int offset = java_lang_String::offset(obj); | |
| 378 int length = java_lang_String::length(obj); | |
| 379 | |
| 380 int end = MIN2(length, 100); | |
| 381 if (value == NULL) { | |
| 382 // This can happen if, e.g., printing a String | |
| 383 // object before its initializer has been called | |
| 384 st->print_cr("NULL"); | |
| 385 } else { | |
| 386 st->print("\""); | |
| 387 for (int index = 0; index < length; index++) { | |
| 388 st->print("%c", value->char_at(index + offset)); | |
| 389 } | |
| 390 st->print("\""); | |
| 391 } | |
| 392 } | |
| 393 | |
| 394 | |
| 395 oop java_lang_Class::create_mirror(KlassHandle k, TRAPS) { | |
| 396 assert(k->java_mirror() == NULL, "should only assign mirror once"); | |
| 397 // Use this moment of initialization to cache modifier_flags also, | |
| 398 // to support Class.getModifiers(). Instance classes recalculate | |
| 399 // the cached flags after the class file is parsed, but before the | |
| 400 // class is put into the system dictionary. | |
| 401 int computed_modifiers = k->compute_modifier_flags(CHECK_0); | |
| 402 k->set_modifier_flags(computed_modifiers); | |
| 1142 | 403 if (SystemDictionary::Class_klass_loaded()) { |
| 0 | 404 // Allocate mirror (java.lang.Class instance) |
| 1142 | 405 Handle mirror = instanceKlass::cast(SystemDictionary::Class_klass())->allocate_permanent_instance(CHECK_0); |
| 0 | 406 // Setup indirections |
| 407 mirror->obj_field_put(klass_offset, k()); | |
| 408 k->set_java_mirror(mirror()); | |
| 409 // It might also have a component mirror. This mirror must already exist. | |
| 410 if (k->oop_is_javaArray()) { | |
| 411 Handle comp_mirror; | |
| 412 if (k->oop_is_typeArray()) { | |
| 413 BasicType type = typeArrayKlass::cast(k->as_klassOop())->element_type(); | |
| 414 comp_mirror = Universe::java_mirror(type); | |
| 415 assert(comp_mirror.not_null(), "must have primitive mirror"); | |
| 416 } else if (k->oop_is_objArray()) { | |
| 417 klassOop element_klass = objArrayKlass::cast(k->as_klassOop())->element_klass(); | |
| 418 if (element_klass != NULL | |
| 419 && (Klass::cast(element_klass)->oop_is_instance() || | |
| 420 Klass::cast(element_klass)->oop_is_javaArray())) { | |
| 421 comp_mirror = Klass::cast(element_klass)->java_mirror(); | |
| 422 assert(comp_mirror.not_null(), "must have element mirror"); | |
| 423 } | |
| 424 // else some object array internal to the VM, like systemObjArrayKlassObj | |
| 425 } | |
| 426 if (comp_mirror.not_null()) { | |
| 427 // Two-way link between the array klass and its component mirror: | |
| 428 arrayKlass::cast(k->as_klassOop())->set_component_mirror(comp_mirror()); | |
| 429 set_array_klass(comp_mirror(), k->as_klassOop()); | |
| 430 } | |
| 431 } | |
| 432 return mirror(); | |
| 433 } else { | |
| 434 return NULL; | |
| 435 } | |
| 436 } | |
| 437 | |
| 438 | |
| 439 oop java_lang_Class::create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS) { | |
| 440 // This should be improved by adding a field at the Java level or by | |
| 441 // introducing a new VM klass (see comment in ClassFileParser) | |
| 1142 | 442 oop java_class = instanceKlass::cast(SystemDictionary::Class_klass())->allocate_permanent_instance(CHECK_0); |
| 0 | 443 if (type != T_VOID) { |
| 444 klassOop aklass = Universe::typeArrayKlassObj(type); | |
| 445 assert(aklass != NULL, "correct bootstrap"); | |
| 446 set_array_klass(java_class, aklass); | |
| 447 } | |
| 448 return java_class; | |
| 449 } | |
| 450 | |
| 451 | |
| 452 klassOop java_lang_Class::as_klassOop(oop java_class) { | |
| 453 //%note memory_2 | |
| 454 klassOop k = klassOop(java_class->obj_field(klass_offset)); | |
| 455 assert(k == NULL || k->is_klass(), "type check"); | |
| 456 return k; | |
| 457 } | |
| 458 | |
| 459 | |
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460 void java_lang_Class::print_signature(oop java_class, outputStream* st) { |
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461 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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462 Symbol* name = NULL; |
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463 bool is_instance = false; |
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464 if (is_primitive(java_class)) { |
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465 name = vmSymbols::type_signature(primitive_type(java_class)); |
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466 } else { |
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467 klassOop k = as_klassOop(java_class); |
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468 is_instance = Klass::cast(k)->oop_is_instance(); |
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469 name = Klass::cast(k)->name(); |
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470 } |
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471 if (name == NULL) { |
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472 st->print("<null>"); |
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473 return; |
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474 } |
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475 if (is_instance) st->print("L"); |
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476 st->write((char*) name->base(), (int) name->utf8_length()); |
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477 if (is_instance) st->print(";"); |
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478 } |
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479 |
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480 Symbol* java_lang_Class::as_signature(oop java_class, bool intern_if_not_found, TRAPS) { |
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481 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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482 Symbol* name; |
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483 if (is_primitive(java_class)) { |
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484 name = vmSymbols::type_signature(primitive_type(java_class)); |
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485 // Because this can create a new symbol, the caller has to decrement |
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486 // the refcount, so make adjustment here and below for symbols returned |
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487 // that are not created or incremented due to a successful lookup. |
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488 name->increment_refcount(); |
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489 } else { |
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490 klassOop k = as_klassOop(java_class); |
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491 if (!Klass::cast(k)->oop_is_instance()) { |
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492 name = Klass::cast(k)->name(); |
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493 name->increment_refcount(); |
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494 } else { |
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495 ResourceMark rm; |
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496 const char* sigstr = Klass::cast(k)->signature_name(); |
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497 int siglen = (int) strlen(sigstr); |
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498 if (!intern_if_not_found) { |
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499 name = SymbolTable::probe(sigstr, siglen); |
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500 } else { |
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501 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
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502 } |
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503 } |
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504 } |
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505 return name; |
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506 } |
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507 |
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508 |
| 0 | 509 klassOop java_lang_Class::array_klass(oop java_class) { |
| 510 klassOop k = klassOop(java_class->obj_field(array_klass_offset)); | |
| 511 assert(k == NULL || k->is_klass() && Klass::cast(k)->oop_is_javaArray(), "should be array klass"); | |
| 512 return k; | |
| 513 } | |
| 514 | |
| 515 | |
| 516 void java_lang_Class::set_array_klass(oop java_class, klassOop klass) { | |
| 517 assert(klass->is_klass() && Klass::cast(klass)->oop_is_javaArray(), "should be array klass"); | |
| 518 java_class->obj_field_put(array_klass_offset, klass); | |
| 519 } | |
| 520 | |
| 521 | |
| 522 methodOop java_lang_Class::resolved_constructor(oop java_class) { | |
| 523 oop constructor = java_class->obj_field(resolved_constructor_offset); | |
| 524 assert(constructor == NULL || constructor->is_method(), "should be method"); | |
| 525 return methodOop(constructor); | |
| 526 } | |
| 527 | |
| 528 | |
| 529 void java_lang_Class::set_resolved_constructor(oop java_class, methodOop constructor) { | |
| 530 assert(constructor->is_method(), "should be method"); | |
| 531 java_class->obj_field_put(resolved_constructor_offset, constructor); | |
| 532 } | |
| 533 | |
| 534 | |
| 535 bool java_lang_Class::is_primitive(oop java_class) { | |
|
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536 // should assert: |
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537 //assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
| 0 | 538 klassOop k = klassOop(java_class->obj_field(klass_offset)); |
| 539 return k == NULL; | |
| 540 } | |
| 541 | |
| 542 | |
| 543 BasicType java_lang_Class::primitive_type(oop java_class) { | |
| 544 assert(java_lang_Class::is_primitive(java_class), "just checking"); | |
| 545 klassOop ak = klassOop(java_class->obj_field(array_klass_offset)); | |
| 546 BasicType type = T_VOID; | |
| 547 if (ak != NULL) { | |
| 548 // Note: create_basic_type_mirror above initializes ak to a non-null value. | |
| 549 type = arrayKlass::cast(ak)->element_type(); | |
| 550 } else { | |
| 551 assert(java_class == Universe::void_mirror(), "only valid non-array primitive"); | |
| 552 } | |
| 553 assert(Universe::java_mirror(type) == java_class, "must be consistent"); | |
| 554 return type; | |
| 555 } | |
| 556 | |
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557 BasicType java_lang_Class::as_BasicType(oop java_class, klassOop* reference_klass) { |
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558 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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559 if (is_primitive(java_class)) { |
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560 if (reference_klass != NULL) |
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561 (*reference_klass) = NULL; |
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562 return primitive_type(java_class); |
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563 } else { |
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564 if (reference_klass != NULL) |
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565 (*reference_klass) = as_klassOop(java_class); |
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566 return T_OBJECT; |
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567 } |
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568 } |
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569 |
| 0 | 570 |
| 571 oop java_lang_Class::primitive_mirror(BasicType t) { | |
| 572 oop mirror = Universe::java_mirror(t); | |
| 1142 | 573 assert(mirror != NULL && mirror->is_a(SystemDictionary::Class_klass()), "must be a Class"); |
| 0 | 574 assert(java_lang_Class::is_primitive(mirror), "must be primitive"); |
| 575 return mirror; | |
| 576 } | |
| 577 | |
| 578 bool java_lang_Class::offsets_computed = false; | |
| 579 int java_lang_Class::classRedefinedCount_offset = -1; | |
| 514 | 580 int java_lang_Class::parallelCapable_offset = -1; |
| 0 | 581 |
| 582 void java_lang_Class::compute_offsets() { | |
| 583 assert(!offsets_computed, "offsets should be initialized only once"); | |
| 584 offsets_computed = true; | |
| 585 | |
| 1142 | 586 klassOop k = SystemDictionary::Class_klass(); |
| 0 | 587 // The classRedefinedCount field is only present starting in 1.5, |
| 588 // so don't go fatal. | |
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589 compute_optional_offset(classRedefinedCount_offset, |
| 0 | 590 k, vmSymbols::classRedefinedCount_name(), vmSymbols::int_signature()); |
| 514 | 591 |
| 592 // The field indicating parallelCapable (parallelLockMap) is only present starting in 7, | |
| 1142 | 593 klassOop k1 = SystemDictionary::ClassLoader_klass(); |
| 514 | 594 compute_optional_offset(parallelCapable_offset, |
| 595 k1, vmSymbols::parallelCapable_name(), vmSymbols::concurrenthashmap_signature()); | |
| 596 } | |
| 597 | |
| 598 // For class loader classes, parallelCapable defined | |
| 599 // based on non-null field | |
| 600 // Written to by java.lang.ClassLoader, vm only reads this field, doesn't set it | |
| 601 bool java_lang_Class::parallelCapable(oop class_loader) { | |
| 602 if (!JDK_Version::is_gte_jdk17x_version() | |
| 603 || parallelCapable_offset == -1) { | |
| 604 // Default for backward compatibility is false | |
| 605 return false; | |
| 606 } | |
| 607 return (class_loader->obj_field(parallelCapable_offset) != NULL); | |
| 0 | 608 } |
| 609 | |
| 610 int java_lang_Class::classRedefinedCount(oop the_class_mirror) { | |
| 611 if (!JDK_Version::is_gte_jdk15x_version() | |
| 612 || classRedefinedCount_offset == -1) { | |
| 613 // The classRedefinedCount field is only present starting in 1.5. | |
| 614 // If we don't have an offset for it then just return -1 as a marker. | |
| 615 return -1; | |
| 616 } | |
| 617 | |
| 618 return the_class_mirror->int_field(classRedefinedCount_offset); | |
| 619 } | |
| 620 | |
| 621 void java_lang_Class::set_classRedefinedCount(oop the_class_mirror, int value) { | |
| 622 if (!JDK_Version::is_gte_jdk15x_version() | |
| 623 || classRedefinedCount_offset == -1) { | |
| 624 // The classRedefinedCount field is only present starting in 1.5. | |
| 625 // If we don't have an offset for it then nothing to set. | |
| 626 return; | |
| 627 } | |
| 628 | |
| 629 the_class_mirror->int_field_put(classRedefinedCount_offset, value); | |
| 630 } | |
| 631 | |
| 632 | |
| 633 // Note: JDK1.1 and before had a privateInfo_offset field which was used for the | |
| 634 // platform thread structure, and a eetop offset which was used for thread | |
| 635 // local storage (and unused by the HotSpot VM). In JDK1.2 the two structures | |
| 636 // merged, so in the HotSpot VM we just use the eetop field for the thread | |
| 637 // instead of the privateInfo_offset. | |
| 638 // | |
| 639 // Note: The stackSize field is only present starting in 1.4. | |
| 640 | |
| 641 int java_lang_Thread::_name_offset = 0; | |
| 642 int java_lang_Thread::_group_offset = 0; | |
| 643 int java_lang_Thread::_contextClassLoader_offset = 0; | |
| 644 int java_lang_Thread::_inheritedAccessControlContext_offset = 0; | |
| 645 int java_lang_Thread::_priority_offset = 0; | |
| 646 int java_lang_Thread::_eetop_offset = 0; | |
| 647 int java_lang_Thread::_daemon_offset = 0; | |
| 648 int java_lang_Thread::_stillborn_offset = 0; | |
| 649 int java_lang_Thread::_stackSize_offset = 0; | |
| 650 int java_lang_Thread::_tid_offset = 0; | |
| 651 int java_lang_Thread::_thread_status_offset = 0; | |
| 652 int java_lang_Thread::_park_blocker_offset = 0; | |
| 653 int java_lang_Thread::_park_event_offset = 0 ; | |
| 654 | |
| 655 | |
| 656 void java_lang_Thread::compute_offsets() { | |
| 657 assert(_group_offset == 0, "offsets should be initialized only once"); | |
| 658 | |
| 1142 | 659 klassOop k = SystemDictionary::Thread_klass(); |
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660 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::char_array_signature()); |
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661 compute_offset(_group_offset, k, vmSymbols::group_name(), vmSymbols::threadgroup_signature()); |
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662 compute_offset(_contextClassLoader_offset, k, vmSymbols::contextClassLoader_name(), vmSymbols::classloader_signature()); |
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663 compute_offset(_inheritedAccessControlContext_offset, k, vmSymbols::inheritedAccessControlContext_name(), vmSymbols::accesscontrolcontext_signature()); |
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664 compute_offset(_priority_offset, k, vmSymbols::priority_name(), vmSymbols::int_signature()); |
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665 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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666 compute_offset(_eetop_offset, k, vmSymbols::eetop_name(), vmSymbols::long_signature()); |
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667 compute_offset(_stillborn_offset, k, vmSymbols::stillborn_name(), vmSymbols::bool_signature()); |
| 0 | 668 // The stackSize field is only present starting in 1.4, so don't go fatal. |
|
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669 compute_optional_offset(_stackSize_offset, k, vmSymbols::stackSize_name(), vmSymbols::long_signature()); |
| 0 | 670 // The tid and thread_status fields are only present starting in 1.5, so don't go fatal. |
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671 compute_optional_offset(_tid_offset, k, vmSymbols::thread_id_name(), vmSymbols::long_signature()); |
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672 compute_optional_offset(_thread_status_offset, k, vmSymbols::thread_status_name(), vmSymbols::int_signature()); |
| 0 | 673 // The parkBlocker field is only present starting in 1.6, so don't go fatal. |
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674 compute_optional_offset(_park_blocker_offset, k, vmSymbols::park_blocker_name(), vmSymbols::object_signature()); |
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675 compute_optional_offset(_park_event_offset, k, vmSymbols::park_event_name(), |
| 0 | 676 vmSymbols::long_signature()); |
| 677 } | |
| 678 | |
| 679 | |
| 680 JavaThread* java_lang_Thread::thread(oop java_thread) { | |
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681 return (JavaThread*)java_thread->address_field(_eetop_offset); |
| 0 | 682 } |
| 683 | |
| 684 | |
| 685 void java_lang_Thread::set_thread(oop java_thread, JavaThread* thread) { | |
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686 java_thread->address_field_put(_eetop_offset, (address)thread); |
| 0 | 687 } |
| 688 | |
| 689 | |
| 690 typeArrayOop java_lang_Thread::name(oop java_thread) { | |
| 691 oop name = java_thread->obj_field(_name_offset); | |
| 692 assert(name == NULL || (name->is_typeArray() && typeArrayKlass::cast(name->klass())->element_type() == T_CHAR), "just checking"); | |
| 693 return typeArrayOop(name); | |
| 694 } | |
| 695 | |
| 696 | |
| 697 void java_lang_Thread::set_name(oop java_thread, typeArrayOop name) { | |
| 698 assert(java_thread->obj_field(_name_offset) == NULL, "name should be NULL"); | |
| 699 java_thread->obj_field_put(_name_offset, name); | |
| 700 } | |
| 701 | |
| 702 | |
| 703 ThreadPriority java_lang_Thread::priority(oop java_thread) { | |
| 704 return (ThreadPriority)java_thread->int_field(_priority_offset); | |
| 705 } | |
| 706 | |
| 707 | |
| 708 void java_lang_Thread::set_priority(oop java_thread, ThreadPriority priority) { | |
| 709 java_thread->int_field_put(_priority_offset, priority); | |
| 710 } | |
| 711 | |
| 712 | |
| 713 oop java_lang_Thread::threadGroup(oop java_thread) { | |
| 714 return java_thread->obj_field(_group_offset); | |
| 715 } | |
| 716 | |
| 717 | |
| 718 bool java_lang_Thread::is_stillborn(oop java_thread) { | |
| 719 return java_thread->bool_field(_stillborn_offset) != 0; | |
| 720 } | |
| 721 | |
| 722 | |
| 723 // We never have reason to turn the stillborn bit off | |
| 724 void java_lang_Thread::set_stillborn(oop java_thread) { | |
| 725 java_thread->bool_field_put(_stillborn_offset, true); | |
| 726 } | |
| 727 | |
| 728 | |
| 729 bool java_lang_Thread::is_alive(oop java_thread) { | |
| 730 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
| 731 return (thr != NULL); | |
| 732 } | |
| 733 | |
| 734 | |
| 735 bool java_lang_Thread::is_daemon(oop java_thread) { | |
| 736 return java_thread->bool_field(_daemon_offset) != 0; | |
| 737 } | |
| 738 | |
| 739 | |
| 740 void java_lang_Thread::set_daemon(oop java_thread) { | |
| 741 java_thread->bool_field_put(_daemon_offset, true); | |
| 742 } | |
| 743 | |
| 744 oop java_lang_Thread::context_class_loader(oop java_thread) { | |
| 745 return java_thread->obj_field(_contextClassLoader_offset); | |
| 746 } | |
| 747 | |
| 748 oop java_lang_Thread::inherited_access_control_context(oop java_thread) { | |
| 749 return java_thread->obj_field(_inheritedAccessControlContext_offset); | |
| 750 } | |
| 751 | |
| 752 | |
| 753 jlong java_lang_Thread::stackSize(oop java_thread) { | |
| 754 // The stackSize field is only present starting in 1.4 | |
| 755 if (_stackSize_offset > 0) { | |
| 756 assert(JDK_Version::is_gte_jdk14x_version(), "sanity check"); | |
| 757 return java_thread->long_field(_stackSize_offset); | |
| 758 } else { | |
| 759 return 0; | |
| 760 } | |
| 761 } | |
| 762 | |
| 763 // Write the thread status value to threadStatus field in java.lang.Thread java class. | |
| 764 void java_lang_Thread::set_thread_status(oop java_thread, | |
| 765 java_lang_Thread::ThreadStatus status) { | |
| 766 assert(JavaThread::current()->thread_state() == _thread_in_vm, "Java Thread is not running in vm"); | |
| 767 // The threadStatus is only present starting in 1.5 | |
| 768 if (_thread_status_offset > 0) { | |
| 769 java_thread->int_field_put(_thread_status_offset, status); | |
| 770 } | |
| 771 } | |
| 772 | |
| 773 // Read thread status value from threadStatus field in java.lang.Thread java class. | |
| 774 java_lang_Thread::ThreadStatus java_lang_Thread::get_thread_status(oop java_thread) { | |
| 775 assert(Thread::current()->is_VM_thread() || | |
| 776 JavaThread::current()->thread_state() == _thread_in_vm, | |
| 777 "Java Thread is not running in vm"); | |
| 778 // The threadStatus is only present starting in 1.5 | |
| 779 if (_thread_status_offset > 0) { | |
| 780 return (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
| 781 } else { | |
| 782 // All we can easily figure out is if it is alive, but that is | |
| 783 // enough info for a valid unknown status. | |
| 784 // These aren't restricted to valid set ThreadStatus values, so | |
| 785 // use JVMTI values and cast. | |
| 786 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
| 787 if (thr == NULL) { | |
| 788 // the thread hasn't run yet or is in the process of exiting | |
| 789 return NEW; | |
| 790 } | |
| 791 return (java_lang_Thread::ThreadStatus)JVMTI_THREAD_STATE_ALIVE; | |
| 792 } | |
| 793 } | |
| 794 | |
| 795 | |
| 796 jlong java_lang_Thread::thread_id(oop java_thread) { | |
| 797 // The thread ID field is only present starting in 1.5 | |
| 798 if (_tid_offset > 0) { | |
| 799 return java_thread->long_field(_tid_offset); | |
| 800 } else { | |
| 801 return 0; | |
| 802 } | |
| 803 } | |
| 804 | |
| 805 oop java_lang_Thread::park_blocker(oop java_thread) { | |
| 242 | 806 assert(JDK_Version::current().supports_thread_park_blocker() && |
| 807 _park_blocker_offset != 0, "Must support parkBlocker field"); | |
| 0 | 808 |
| 809 if (_park_blocker_offset > 0) { | |
| 810 return java_thread->obj_field(_park_blocker_offset); | |
| 811 } | |
| 812 | |
| 813 return NULL; | |
| 814 } | |
| 815 | |
| 816 jlong java_lang_Thread::park_event(oop java_thread) { | |
| 817 if (_park_event_offset > 0) { | |
| 818 return java_thread->long_field(_park_event_offset); | |
| 819 } | |
| 820 return 0; | |
| 821 } | |
| 822 | |
| 823 bool java_lang_Thread::set_park_event(oop java_thread, jlong ptr) { | |
| 824 if (_park_event_offset > 0) { | |
| 825 java_thread->long_field_put(_park_event_offset, ptr); | |
| 826 return true; | |
| 827 } | |
| 828 return false; | |
| 829 } | |
| 830 | |
| 831 | |
| 832 const char* java_lang_Thread::thread_status_name(oop java_thread) { | |
| 833 assert(JDK_Version::is_gte_jdk15x_version() && _thread_status_offset != 0, "Must have thread status"); | |
| 834 ThreadStatus status = (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
| 835 switch (status) { | |
| 836 case NEW : return "NEW"; | |
| 837 case RUNNABLE : return "RUNNABLE"; | |
| 838 case SLEEPING : return "TIMED_WAITING (sleeping)"; | |
| 839 case IN_OBJECT_WAIT : return "WAITING (on object monitor)"; | |
| 840 case IN_OBJECT_WAIT_TIMED : return "TIMED_WAITING (on object monitor)"; | |
| 841 case PARKED : return "WAITING (parking)"; | |
| 842 case PARKED_TIMED : return "TIMED_WAITING (parking)"; | |
| 843 case BLOCKED_ON_MONITOR_ENTER : return "BLOCKED (on object monitor)"; | |
| 844 case TERMINATED : return "TERMINATED"; | |
| 845 default : return "UNKNOWN"; | |
| 846 }; | |
| 847 } | |
| 848 int java_lang_ThreadGroup::_parent_offset = 0; | |
| 849 int java_lang_ThreadGroup::_name_offset = 0; | |
| 850 int java_lang_ThreadGroup::_threads_offset = 0; | |
| 851 int java_lang_ThreadGroup::_groups_offset = 0; | |
| 852 int java_lang_ThreadGroup::_maxPriority_offset = 0; | |
| 853 int java_lang_ThreadGroup::_destroyed_offset = 0; | |
| 854 int java_lang_ThreadGroup::_daemon_offset = 0; | |
| 855 int java_lang_ThreadGroup::_vmAllowSuspension_offset = 0; | |
| 856 int java_lang_ThreadGroup::_nthreads_offset = 0; | |
| 857 int java_lang_ThreadGroup::_ngroups_offset = 0; | |
| 858 | |
| 859 oop java_lang_ThreadGroup::parent(oop java_thread_group) { | |
| 860 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 861 return java_thread_group->obj_field(_parent_offset); | |
| 862 } | |
| 863 | |
| 864 // ("name as oop" accessor is not necessary) | |
| 865 | |
| 866 typeArrayOop java_lang_ThreadGroup::name(oop java_thread_group) { | |
| 867 oop name = java_thread_group->obj_field(_name_offset); | |
| 868 // ThreadGroup.name can be null | |
| 869 return name == NULL ? (typeArrayOop)NULL : java_lang_String::value(name); | |
| 870 } | |
| 871 | |
| 872 int java_lang_ThreadGroup::nthreads(oop java_thread_group) { | |
| 873 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 874 return java_thread_group->int_field(_nthreads_offset); | |
| 875 } | |
| 876 | |
| 877 objArrayOop java_lang_ThreadGroup::threads(oop java_thread_group) { | |
| 878 oop threads = java_thread_group->obj_field(_threads_offset); | |
| 879 assert(threads != NULL, "threadgroups should have threads"); | |
| 880 assert(threads->is_objArray(), "just checking"); // Todo: Add better type checking code | |
| 881 return objArrayOop(threads); | |
| 882 } | |
| 883 | |
| 884 int java_lang_ThreadGroup::ngroups(oop java_thread_group) { | |
| 885 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 886 return java_thread_group->int_field(_ngroups_offset); | |
| 887 } | |
| 888 | |
| 889 objArrayOop java_lang_ThreadGroup::groups(oop java_thread_group) { | |
| 890 oop groups = java_thread_group->obj_field(_groups_offset); | |
| 891 assert(groups == NULL || groups->is_objArray(), "just checking"); // Todo: Add better type checking code | |
| 892 return objArrayOop(groups); | |
| 893 } | |
| 894 | |
| 895 ThreadPriority java_lang_ThreadGroup::maxPriority(oop java_thread_group) { | |
| 896 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 897 return (ThreadPriority) java_thread_group->int_field(_maxPriority_offset); | |
| 898 } | |
| 899 | |
| 900 bool java_lang_ThreadGroup::is_destroyed(oop java_thread_group) { | |
| 901 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 902 return java_thread_group->bool_field(_destroyed_offset) != 0; | |
| 903 } | |
| 904 | |
| 905 bool java_lang_ThreadGroup::is_daemon(oop java_thread_group) { | |
| 906 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 907 return java_thread_group->bool_field(_daemon_offset) != 0; | |
| 908 } | |
| 909 | |
| 910 bool java_lang_ThreadGroup::is_vmAllowSuspension(oop java_thread_group) { | |
| 911 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 912 return java_thread_group->bool_field(_vmAllowSuspension_offset) != 0; | |
| 913 } | |
| 914 | |
| 915 void java_lang_ThreadGroup::compute_offsets() { | |
| 916 assert(_parent_offset == 0, "offsets should be initialized only once"); | |
| 917 | |
| 1142 | 918 klassOop k = SystemDictionary::ThreadGroup_klass(); |
| 0 | 919 |
|
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920 compute_offset(_parent_offset, k, vmSymbols::parent_name(), vmSymbols::threadgroup_signature()); |
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921 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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922 compute_offset(_threads_offset, k, vmSymbols::threads_name(), vmSymbols::thread_array_signature()); |
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923 compute_offset(_groups_offset, k, vmSymbols::groups_name(), vmSymbols::threadgroup_array_signature()); |
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924 compute_offset(_maxPriority_offset, k, vmSymbols::maxPriority_name(), vmSymbols::int_signature()); |
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925 compute_offset(_destroyed_offset, k, vmSymbols::destroyed_name(), vmSymbols::bool_signature()); |
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926 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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927 compute_offset(_vmAllowSuspension_offset, k, vmSymbols::vmAllowSuspension_name(), vmSymbols::bool_signature()); |
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928 compute_offset(_nthreads_offset, k, vmSymbols::nthreads_name(), vmSymbols::int_signature()); |
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929 compute_offset(_ngroups_offset, k, vmSymbols::ngroups_name(), vmSymbols::int_signature()); |
| 0 | 930 } |
| 931 | |
| 932 oop java_lang_Throwable::backtrace(oop throwable) { | |
| 933 return throwable->obj_field_acquire(backtrace_offset); | |
| 934 } | |
| 935 | |
| 936 | |
| 937 void java_lang_Throwable::set_backtrace(oop throwable, oop value) { | |
| 938 throwable->release_obj_field_put(backtrace_offset, value); | |
| 939 } | |
| 940 | |
| 941 | |
| 942 oop java_lang_Throwable::message(oop throwable) { | |
| 943 return throwable->obj_field(detailMessage_offset); | |
| 944 } | |
| 945 | |
| 946 | |
| 947 oop java_lang_Throwable::message(Handle throwable) { | |
| 948 return throwable->obj_field(detailMessage_offset); | |
| 949 } | |
| 950 | |
| 951 | |
| 952 void java_lang_Throwable::set_message(oop throwable, oop value) { | |
| 953 throwable->obj_field_put(detailMessage_offset, value); | |
| 954 } | |
| 955 | |
| 956 | |
| 957 void java_lang_Throwable::clear_stacktrace(oop throwable) { | |
| 958 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
| 959 throwable->obj_field_put(stackTrace_offset, NULL); | |
| 960 } | |
| 961 | |
| 962 | |
| 963 void java_lang_Throwable::print(oop throwable, outputStream* st) { | |
| 964 ResourceMark rm; | |
| 965 klassOop k = throwable->klass(); | |
| 966 assert(k != NULL, "just checking"); | |
| 967 st->print("%s", instanceKlass::cast(k)->external_name()); | |
| 968 oop msg = message(throwable); | |
| 969 if (msg != NULL) { | |
| 970 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
| 971 } | |
| 972 } | |
| 973 | |
| 974 | |
| 975 void java_lang_Throwable::print(Handle throwable, outputStream* st) { | |
| 976 ResourceMark rm; | |
| 977 klassOop k = throwable->klass(); | |
| 978 assert(k != NULL, "just checking"); | |
| 979 st->print("%s", instanceKlass::cast(k)->external_name()); | |
| 980 oop msg = message(throwable); | |
| 981 if (msg != NULL) { | |
| 982 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
| 983 } | |
| 984 } | |
| 985 | |
| 986 // Print stack trace element to resource allocated buffer | |
| 987 char* java_lang_Throwable::print_stack_element_to_buffer(methodOop method, int bci) { | |
| 988 // Get strings and string lengths | |
| 989 instanceKlass* klass = instanceKlass::cast(method->method_holder()); | |
| 990 const char* klass_name = klass->external_name(); | |
| 991 int buf_len = (int)strlen(klass_name); | |
| 992 char* source_file_name; | |
| 993 if (klass->source_file_name() == NULL) { | |
| 994 source_file_name = NULL; | |
| 995 } else { | |
| 996 source_file_name = klass->source_file_name()->as_C_string(); | |
| 997 buf_len += (int)strlen(source_file_name); | |
| 998 } | |
| 999 char* method_name = method->name()->as_C_string(); | |
| 1000 buf_len += (int)strlen(method_name); | |
| 1001 | |
| 1002 // Allocate temporary buffer with extra space for formatting and line number | |
| 1003 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64); | |
| 1004 | |
| 1005 // Print stack trace line in buffer | |
| 1006 sprintf(buf, "\tat %s.%s", klass_name, method_name); | |
| 1007 if (method->is_native()) { | |
| 1008 strcat(buf, "(Native Method)"); | |
| 1009 } else { | |
| 1010 int line_number = method->line_number_from_bci(bci); | |
| 1011 if (source_file_name != NULL && (line_number != -1)) { | |
| 1012 // Sourcename and linenumber | |
| 1013 sprintf(buf + (int)strlen(buf), "(%s:%d)", source_file_name, line_number); | |
| 1014 } else if (source_file_name != NULL) { | |
| 1015 // Just sourcename | |
| 1016 sprintf(buf + (int)strlen(buf), "(%s)", source_file_name); | |
| 1017 } else { | |
| 1018 // Neither soucename and linenumber | |
| 1019 sprintf(buf + (int)strlen(buf), "(Unknown Source)"); | |
| 1020 } | |
| 1021 nmethod* nm = method->code(); | |
| 1022 if (WizardMode && nm != NULL) { | |
|
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1023 sprintf(buf + (int)strlen(buf), "(nmethod " PTR_FORMAT ")", (intptr_t)nm); |
| 0 | 1024 } |
| 1025 } | |
| 1026 | |
| 1027 return buf; | |
| 1028 } | |
| 1029 | |
| 1030 | |
| 1031 void java_lang_Throwable::print_stack_element(Handle stream, methodOop method, int bci) { | |
| 1032 ResourceMark rm; | |
| 1033 char* buf = print_stack_element_to_buffer(method, bci); | |
| 1034 print_to_stream(stream, buf); | |
| 1035 } | |
| 1036 | |
| 1037 void java_lang_Throwable::print_stack_element(outputStream *st, methodOop method, int bci) { | |
| 1038 ResourceMark rm; | |
| 1039 char* buf = print_stack_element_to_buffer(method, bci); | |
| 1040 st->print_cr("%s", buf); | |
| 1041 } | |
| 1042 | |
| 1043 void java_lang_Throwable::print_to_stream(Handle stream, const char* str) { | |
| 1044 if (stream.is_null()) { | |
| 1045 tty->print_cr("%s", str); | |
| 1046 } else { | |
| 1047 EXCEPTION_MARK; | |
| 1048 JavaValue result(T_VOID); | |
| 1049 Handle arg (THREAD, oopFactory::new_charArray(str, THREAD)); | |
| 1050 if (!HAS_PENDING_EXCEPTION) { | |
| 1051 JavaCalls::call_virtual(&result, | |
| 1052 stream, | |
| 1053 KlassHandle(THREAD, stream->klass()), | |
|
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1054 vmSymbols::println_name(), |
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1055 vmSymbols::char_array_void_signature(), |
| 0 | 1056 arg, |
| 1057 THREAD); | |
| 1058 } | |
| 1059 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
| 1060 if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION; | |
| 1061 } | |
| 1062 | |
| 1063 } | |
| 1064 | |
| 1065 | |
| 1066 const char* java_lang_Throwable::no_stack_trace_message() { | |
| 1067 return "\t<<no stack trace available>>"; | |
| 1068 } | |
| 1069 | |
| 1070 | |
| 1071 // Currently used only for exceptions occurring during startup | |
| 1072 void java_lang_Throwable::print_stack_trace(oop throwable, outputStream* st) { | |
| 1073 Thread *THREAD = Thread::current(); | |
| 1074 Handle h_throwable(THREAD, throwable); | |
| 1075 while (h_throwable.not_null()) { | |
| 1076 objArrayHandle result (THREAD, objArrayOop(backtrace(h_throwable()))); | |
| 1077 if (result.is_null()) { | |
| 1078 st->print_cr(no_stack_trace_message()); | |
| 1079 return; | |
| 1080 } | |
| 1081 | |
| 1082 while (result.not_null()) { | |
| 1083 objArrayHandle methods (THREAD, | |
| 1084 objArrayOop(result->obj_at(trace_methods_offset))); | |
| 1085 typeArrayHandle bcis (THREAD, | |
| 1086 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
| 1087 | |
| 1088 if (methods.is_null() || bcis.is_null()) { | |
| 1089 st->print_cr(no_stack_trace_message()); | |
| 1090 return; | |
| 1091 } | |
| 1092 | |
| 1093 int length = methods()->length(); | |
| 1094 for (int index = 0; index < length; index++) { | |
| 1095 methodOop method = methodOop(methods()->obj_at(index)); | |
| 1096 if (method == NULL) goto handle_cause; | |
| 1097 int bci = bcis->ushort_at(index); | |
| 1098 print_stack_element(st, method, bci); | |
| 1099 } | |
| 1100 result = objArrayHandle(THREAD, objArrayOop(result->obj_at(trace_next_offset))); | |
| 1101 } | |
| 1102 handle_cause: | |
| 1103 { | |
| 1104 EXCEPTION_MARK; | |
| 1105 JavaValue result(T_OBJECT); | |
| 1106 JavaCalls::call_virtual(&result, | |
| 1107 h_throwable, | |
| 1108 KlassHandle(THREAD, h_throwable->klass()), | |
|
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1109 vmSymbols::getCause_name(), |
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1110 vmSymbols::void_throwable_signature(), |
| 0 | 1111 THREAD); |
| 1112 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
| 1113 if (HAS_PENDING_EXCEPTION) { | |
| 1114 CLEAR_PENDING_EXCEPTION; | |
| 1115 h_throwable = Handle(); | |
| 1116 } else { | |
| 1117 h_throwable = Handle(THREAD, (oop) result.get_jobject()); | |
| 1118 if (h_throwable.not_null()) { | |
| 1119 st->print("Caused by: "); | |
| 1120 print(h_throwable, st); | |
| 1121 st->cr(); | |
| 1122 } | |
| 1123 } | |
| 1124 } | |
| 1125 } | |
| 1126 } | |
| 1127 | |
| 1128 | |
| 1129 void java_lang_Throwable::print_stack_trace(oop throwable, oop print_stream) { | |
| 1130 // Note: this is no longer used in Merlin, but we support it for compatibility. | |
| 1131 Thread *thread = Thread::current(); | |
| 1132 Handle stream(thread, print_stream); | |
| 1133 objArrayHandle result (thread, objArrayOop(backtrace(throwable))); | |
| 1134 if (result.is_null()) { | |
| 1135 print_to_stream(stream, no_stack_trace_message()); | |
| 1136 return; | |
| 1137 } | |
| 1138 | |
| 1139 while (result.not_null()) { | |
| 1140 objArrayHandle methods (thread, | |
| 1141 objArrayOop(result->obj_at(trace_methods_offset))); | |
| 1142 typeArrayHandle bcis (thread, | |
| 1143 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
| 1144 | |
| 1145 if (methods.is_null() || bcis.is_null()) { | |
| 1146 print_to_stream(stream, no_stack_trace_message()); | |
| 1147 return; | |
| 1148 } | |
| 1149 | |
| 1150 int length = methods()->length(); | |
| 1151 for (int index = 0; index < length; index++) { | |
| 1152 methodOop method = methodOop(methods()->obj_at(index)); | |
| 1153 if (method == NULL) return; | |
| 1154 int bci = bcis->ushort_at(index); | |
| 1155 print_stack_element(stream, method, bci); | |
| 1156 } | |
| 1157 result = objArrayHandle(thread, objArrayOop(result->obj_at(trace_next_offset))); | |
| 1158 } | |
| 1159 } | |
| 1160 | |
| 1161 // This class provides a simple wrapper over the internal structure of | |
| 1162 // exception backtrace to insulate users of the backtrace from needing | |
| 1163 // to know what it looks like. | |
| 1164 class BacktraceBuilder: public StackObj { | |
| 1165 private: | |
| 1166 Handle _backtrace; | |
| 1167 objArrayOop _head; | |
| 1168 objArrayOop _methods; | |
| 1169 typeArrayOop _bcis; | |
| 1170 int _index; | |
| 1171 bool _dirty; | |
| 1172 No_Safepoint_Verifier _nsv; | |
| 1173 | |
| 1174 public: | |
| 1175 | |
| 1176 enum { | |
| 1177 trace_methods_offset = java_lang_Throwable::trace_methods_offset, | |
| 1178 trace_bcis_offset = java_lang_Throwable::trace_bcis_offset, | |
| 1179 trace_next_offset = java_lang_Throwable::trace_next_offset, | |
| 1180 trace_size = java_lang_Throwable::trace_size, | |
| 1181 trace_chunk_size = java_lang_Throwable::trace_chunk_size | |
| 1182 }; | |
| 1183 | |
| 1184 // constructor for new backtrace | |
|
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1185 BacktraceBuilder(TRAPS): _methods(NULL), _bcis(NULL), _head(NULL), _dirty(false) { |
| 0 | 1186 expand(CHECK); |
| 1187 _backtrace = _head; | |
| 1188 _index = 0; | |
| 1189 } | |
| 1190 | |
| 1191 void flush() { | |
|
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1192 // The following appears to have been an optimization to save from |
|
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1193 // doing a barrier for each individual store into the _methods array, |
|
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1194 // but rather to do it for the entire array after the series of writes. |
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1195 // That optimization seems to have been lost when compressed oops was |
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1196 // implemented. However, the extra card-marks below was left in place, |
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1197 // but is now redundant because the individual stores into the |
|
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1198 // _methods array already execute the barrier code. CR 6918185 has |
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1199 // been filed so the original code may be restored by deferring the |
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1200 // barriers until after the entire sequence of stores, thus re-enabling |
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1201 // the intent of the original optimization. In the meantime the redundant |
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1202 // card mark below is now disabled. |
| 0 | 1203 if (_dirty && _methods != NULL) { |
|
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1204 #if 0 |
| 0 | 1205 BarrierSet* bs = Universe::heap()->barrier_set(); |
| 1206 assert(bs->has_write_ref_array_opt(), "Barrier set must have ref array opt"); | |
|
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1207 bs->write_ref_array((HeapWord*)_methods->base(), _methods->length()); |
|
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1208 #endif |
| 0 | 1209 _dirty = false; |
| 1210 } | |
| 1211 } | |
| 1212 | |
| 1213 void expand(TRAPS) { | |
| 1214 flush(); | |
| 1215 | |
| 1216 objArrayHandle old_head(THREAD, _head); | |
| 1217 Pause_No_Safepoint_Verifier pnsv(&_nsv); | |
| 1218 | |
| 1219 objArrayOop head = oopFactory::new_objectArray(trace_size, CHECK); | |
| 1220 objArrayHandle new_head(THREAD, head); | |
| 1221 | |
| 1222 objArrayOop methods = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
| 1223 objArrayHandle new_methods(THREAD, methods); | |
| 1224 | |
| 1225 typeArrayOop bcis = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
| 1226 typeArrayHandle new_bcis(THREAD, bcis); | |
| 1227 | |
| 1228 if (!old_head.is_null()) { | |
| 1229 old_head->obj_at_put(trace_next_offset, new_head()); | |
| 1230 } | |
| 1231 new_head->obj_at_put(trace_methods_offset, new_methods()); | |
| 1232 new_head->obj_at_put(trace_bcis_offset, new_bcis()); | |
| 1233 | |
| 1234 _head = new_head(); | |
| 1235 _methods = new_methods(); | |
| 1236 _bcis = new_bcis(); | |
| 1237 _index = 0; | |
| 1238 } | |
| 1239 | |
| 1240 oop backtrace() { | |
| 1241 flush(); | |
| 1242 return _backtrace(); | |
| 1243 } | |
| 1244 | |
| 1245 inline void push(methodOop method, short bci, TRAPS) { | |
| 1246 if (_index >= trace_chunk_size) { | |
| 1247 methodHandle mhandle(THREAD, method); | |
| 1248 expand(CHECK); | |
| 1249 method = mhandle(); | |
| 1250 } | |
| 1251 | |
|
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1252 _methods->obj_at_put(_index, method); |
| 0 | 1253 _bcis->ushort_at_put(_index, bci); |
| 1254 _index++; | |
| 1255 _dirty = true; | |
| 1256 } | |
| 1257 | |
| 1258 methodOop current_method() { | |
| 1259 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
| 1260 return methodOop(_methods->obj_at(_index)); | |
| 1261 } | |
| 1262 | |
| 1263 jushort current_bci() { | |
| 1264 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
| 1265 return _bcis->ushort_at(_index); | |
| 1266 } | |
| 1267 }; | |
| 1268 | |
| 1269 | |
| 1270 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, TRAPS) { | |
| 1271 if (!StackTraceInThrowable) return; | |
| 1272 ResourceMark rm(THREAD); | |
| 1273 | |
| 1274 // Start out by clearing the backtrace for this object, in case the VM | |
| 1275 // runs out of memory while allocating the stack trace | |
| 1276 set_backtrace(throwable(), NULL); | |
| 1277 if (JDK_Version::is_gte_jdk14x_version()) { | |
| 1278 // New since 1.4, clear lazily constructed Java level stacktrace if | |
| 1279 // refilling occurs | |
| 1280 clear_stacktrace(throwable()); | |
| 1281 } | |
| 1282 | |
| 1283 int max_depth = MaxJavaStackTraceDepth; | |
| 1284 JavaThread* thread = (JavaThread*)THREAD; | |
| 1285 BacktraceBuilder bt(CHECK); | |
| 1286 | |
| 1287 // Instead of using vframe directly, this version of fill_in_stack_trace | |
| 1288 // basically handles everything by hand. This significantly improved the | |
| 1289 // speed of this method call up to 28.5% on Solaris sparc. 27.1% on Windows. | |
| 1290 // See bug 6333838 for more details. | |
| 1291 // The "ASSERT" here is to verify this method generates the exactly same stack | |
| 1292 // trace as utilizing vframe. | |
| 1293 #ifdef ASSERT | |
| 1294 vframeStream st(thread); | |
| 1295 methodHandle st_method(THREAD, st.method()); | |
| 1296 #endif | |
| 1297 int total_count = 0; | |
| 1298 RegisterMap map(thread, false); | |
| 1299 int decode_offset = 0; | |
| 1300 nmethod* nm = NULL; | |
| 1301 bool skip_fillInStackTrace_check = false; | |
| 1302 bool skip_throwableInit_check = false; | |
| 1303 | |
| 1304 for (frame fr = thread->last_frame(); max_depth != total_count;) { | |
| 1305 methodOop method = NULL; | |
| 1306 int bci = 0; | |
| 1307 | |
| 1308 // Compiled java method case. | |
| 1309 if (decode_offset != 0) { | |
| 1310 DebugInfoReadStream stream(nm, decode_offset); | |
| 1311 decode_offset = stream.read_int(); | |
| 1312 method = (methodOop)nm->oop_at(stream.read_int()); | |
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1313 bci = stream.read_bci(); |
| 0 | 1314 } else { |
| 1315 if (fr.is_first_frame()) break; | |
| 1316 address pc = fr.pc(); | |
| 1317 if (fr.is_interpreted_frame()) { | |
| 1318 intptr_t bcx = fr.interpreter_frame_bcx(); | |
| 1319 method = fr.interpreter_frame_method(); | |
| 1320 bci = fr.is_bci(bcx) ? bcx : method->bci_from((address)bcx); | |
| 1321 fr = fr.sender(&map); | |
| 1322 } else { | |
| 1323 CodeBlob* cb = fr.cb(); | |
| 1324 // HMMM QQQ might be nice to have frame return nm as NULL if cb is non-NULL | |
| 1325 // but non nmethod | |
| 1326 fr = fr.sender(&map); | |
| 1327 if (cb == NULL || !cb->is_nmethod()) { | |
| 1328 continue; | |
| 1329 } | |
| 1330 nm = (nmethod*)cb; | |
| 1331 if (nm->method()->is_native()) { | |
| 1332 method = nm->method(); | |
| 1333 bci = 0; | |
| 1334 } else { | |
| 1335 PcDesc* pd = nm->pc_desc_at(pc); | |
| 1336 decode_offset = pd->scope_decode_offset(); | |
| 1337 // if decode_offset is not equal to 0, it will execute the | |
| 1338 // "compiled java method case" at the beginning of the loop. | |
| 1339 continue; | |
| 1340 } | |
| 1341 } | |
| 1342 } | |
| 1343 #ifdef ASSERT | |
| 1344 assert(st_method() == method && st.bci() == bci, | |
| 1345 "Wrong stack trace"); | |
| 1346 st.next(); | |
| 1347 // vframeStream::method isn't GC-safe so store off a copy | |
| 1348 // of the methodOop in case we GC. | |
| 1349 if (!st.at_end()) { | |
| 1350 st_method = st.method(); | |
| 1351 } | |
| 1352 #endif | |
| 1353 if (!skip_fillInStackTrace_check) { | |
| 1354 // check "fillInStackTrace" only once, so we negate the flag | |
| 1355 // after the first time check. | |
| 1356 skip_fillInStackTrace_check = true; | |
| 1357 if (method->name() == vmSymbols::fillInStackTrace_name()) { | |
| 1358 continue; | |
| 1359 } | |
| 1360 } | |
| 1361 // skip <init> methods of the exceptions klass. If there is <init> methods | |
| 1362 // that belongs to a superclass of the exception we are going to skipping | |
| 1363 // them in stack trace. This is simlar to classic VM. | |
| 1364 if (!skip_throwableInit_check) { | |
| 1365 if (method->name() == vmSymbols::object_initializer_name() && | |
| 1366 throwable->is_a(method->method_holder())) { | |
| 1367 continue; | |
| 1368 } else { | |
| 1369 // if no "Throwable.init()" method found, we stop checking it next time. | |
| 1370 skip_throwableInit_check = true; | |
| 1371 } | |
| 1372 } | |
| 1373 bt.push(method, bci, CHECK); | |
| 1374 total_count++; | |
| 1375 } | |
| 1376 | |
| 1377 // Put completed stack trace into throwable object | |
| 1378 set_backtrace(throwable(), bt.backtrace()); | |
| 1379 } | |
| 1380 | |
| 1381 void java_lang_Throwable::fill_in_stack_trace(Handle throwable) { | |
| 1382 // No-op if stack trace is disabled | |
| 1383 if (!StackTraceInThrowable) { | |
| 1384 return; | |
| 1385 } | |
| 1386 | |
| 1387 // Disable stack traces for some preallocated out of memory errors | |
| 1388 if (!Universe::should_fill_in_stack_trace(throwable)) { | |
| 1389 return; | |
| 1390 } | |
| 1391 | |
| 1392 PRESERVE_EXCEPTION_MARK; | |
| 1393 | |
| 1394 JavaThread* thread = JavaThread::active(); | |
| 1395 fill_in_stack_trace(throwable, thread); | |
| 1396 // ignore exceptions thrown during stack trace filling | |
| 1397 CLEAR_PENDING_EXCEPTION; | |
| 1398 } | |
| 1399 | |
| 1400 void java_lang_Throwable::allocate_backtrace(Handle throwable, TRAPS) { | |
| 1401 // Allocate stack trace - backtrace is created but not filled in | |
| 1402 | |
| 1403 // No-op if stack trace is disabled | |
| 1404 if (!StackTraceInThrowable) return; | |
| 1405 | |
| 1406 objArrayOop h_oop = oopFactory::new_objectArray(trace_size, CHECK); | |
| 1407 objArrayHandle backtrace (THREAD, h_oop); | |
| 1408 objArrayOop m_oop = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
| 1409 objArrayHandle methods (THREAD, m_oop); | |
| 1410 typeArrayOop b = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
| 1411 typeArrayHandle bcis(THREAD, b); | |
| 1412 | |
| 1413 // backtrace has space for one chunk (next is NULL) | |
| 1414 backtrace->obj_at_put(trace_methods_offset, methods()); | |
| 1415 backtrace->obj_at_put(trace_bcis_offset, bcis()); | |
| 1416 set_backtrace(throwable(), backtrace()); | |
| 1417 } | |
| 1418 | |
| 1419 | |
| 1420 void java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(Handle throwable) { | |
| 1421 // Fill in stack trace into preallocated backtrace (no GC) | |
| 1422 | |
| 1423 // No-op if stack trace is disabled | |
| 1424 if (!StackTraceInThrowable) return; | |
| 1425 | |
| 1142 | 1426 assert(throwable->is_a(SystemDictionary::Throwable_klass()), "sanity check"); |
| 0 | 1427 |
| 1428 oop backtrace = java_lang_Throwable::backtrace(throwable()); | |
| 1429 assert(backtrace != NULL, "backtrace not preallocated"); | |
| 1430 | |
| 1431 oop m = objArrayOop(backtrace)->obj_at(trace_methods_offset); | |
| 1432 objArrayOop methods = objArrayOop(m); | |
| 1433 assert(methods != NULL && methods->length() > 0, "method array not preallocated"); | |
| 1434 | |
| 1435 oop b = objArrayOop(backtrace)->obj_at(trace_bcis_offset); | |
| 1436 typeArrayOop bcis = typeArrayOop(b); | |
| 1437 assert(bcis != NULL, "bci array not preallocated"); | |
| 1438 | |
| 1439 assert(methods->length() == bcis->length(), "method and bci arrays should match"); | |
| 1440 | |
| 1441 JavaThread* thread = JavaThread::current(); | |
| 1442 ResourceMark rm(thread); | |
| 1443 vframeStream st(thread); | |
| 1444 | |
| 1445 // Unlike fill_in_stack_trace we do not skip fillInStackTrace or throwable init | |
| 1446 // methods as preallocated errors aren't created by "java" code. | |
| 1447 | |
| 1448 // fill in as much stack trace as possible | |
| 1449 int max_chunks = MIN2(methods->length(), (int)MaxJavaStackTraceDepth); | |
| 1450 int chunk_count = 0; | |
| 1451 | |
| 1452 for (;!st.at_end(); st.next()) { | |
| 1453 // add element | |
| 1454 bcis->ushort_at_put(chunk_count, st.bci()); | |
| 1455 methods->obj_at_put(chunk_count, st.method()); | |
| 1456 | |
| 1457 chunk_count++; | |
| 1458 | |
| 1459 // Bail-out for deep stacks | |
| 1460 if (chunk_count >= max_chunks) break; | |
| 1461 } | |
| 1462 } | |
| 1463 | |
| 1464 | |
| 1465 int java_lang_Throwable::get_stack_trace_depth(oop throwable, TRAPS) { | |
| 1466 if (throwable == NULL) { | |
| 1467 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
| 1468 } | |
| 1469 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
| 1470 int depth = 0; | |
| 1471 if (chunk != NULL) { | |
| 1472 // Iterate over chunks and count full ones | |
| 1473 while (true) { | |
| 1474 objArrayOop next = objArrayOop(chunk->obj_at(trace_next_offset)); | |
| 1475 if (next == NULL) break; | |
| 1476 depth += trace_chunk_size; | |
| 1477 chunk = next; | |
| 1478 } | |
| 1479 assert(chunk != NULL && chunk->obj_at(trace_next_offset) == NULL, "sanity check"); | |
| 1480 // Count element in remaining partial chunk | |
| 1481 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
| 1482 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
| 1483 assert(methods != NULL && bcis != NULL, "sanity check"); | |
| 1484 for (int i = 0; i < methods->length(); i++) { | |
| 1485 if (methods->obj_at(i) == NULL) break; | |
| 1486 depth++; | |
| 1487 } | |
| 1488 } | |
| 1489 return depth; | |
| 1490 } | |
| 1491 | |
| 1492 | |
| 1493 oop java_lang_Throwable::get_stack_trace_element(oop throwable, int index, TRAPS) { | |
| 1494 if (throwable == NULL) { | |
| 1495 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
| 1496 } | |
| 1497 if (index < 0) { | |
| 1498 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1499 } | |
| 1500 // Compute how many chunks to skip and index into actual chunk | |
| 1501 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
| 1502 int skip_chunks = index / trace_chunk_size; | |
| 1503 int chunk_index = index % trace_chunk_size; | |
| 1504 while (chunk != NULL && skip_chunks > 0) { | |
| 1505 chunk = objArrayOop(chunk->obj_at(trace_next_offset)); | |
| 1506 skip_chunks--; | |
| 1507 } | |
| 1508 if (chunk == NULL) { | |
| 1509 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1510 } | |
| 1511 // Get method,bci from chunk | |
| 1512 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
| 1513 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
| 1514 assert(methods != NULL && bcis != NULL, "sanity check"); | |
| 1515 methodHandle method(THREAD, methodOop(methods->obj_at(chunk_index))); | |
| 1516 int bci = bcis->ushort_at(chunk_index); | |
| 1517 // Chunk can be partial full | |
| 1518 if (method.is_null()) { | |
| 1519 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1520 } | |
| 1521 | |
| 1522 oop element = java_lang_StackTraceElement::create(method, bci, CHECK_0); | |
| 1523 return element; | |
| 1524 } | |
| 1525 | |
| 1526 oop java_lang_StackTraceElement::create(methodHandle method, int bci, TRAPS) { | |
| 1527 // SystemDictionary::stackTraceElement_klass() will be null for pre-1.4 JDKs | |
| 1528 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
| 1529 | |
| 1530 // Allocate java.lang.StackTraceElement instance | |
| 1142 | 1531 klassOop k = SystemDictionary::StackTraceElement_klass(); |
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1532 assert(k != NULL, "must be loaded in 1.4+"); |
| 0 | 1533 instanceKlassHandle ik (THREAD, k); |
| 1534 if (ik->should_be_initialized()) { | |
| 1535 ik->initialize(CHECK_0); | |
| 1536 } | |
| 1537 | |
| 1538 Handle element = ik->allocate_instance_handle(CHECK_0); | |
| 1539 // Fill in class name | |
| 1540 ResourceMark rm(THREAD); | |
| 1541 const char* str = instanceKlass::cast(method->method_holder())->external_name(); | |
| 1542 oop classname = StringTable::intern((char*) str, CHECK_0); | |
| 1543 java_lang_StackTraceElement::set_declaringClass(element(), classname); | |
| 1544 // Fill in method name | |
| 1545 oop methodname = StringTable::intern(method->name(), CHECK_0); | |
| 1546 java_lang_StackTraceElement::set_methodName(element(), methodname); | |
| 1547 // Fill in source file name | |
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1548 Symbol* source = instanceKlass::cast(method->method_holder())->source_file_name(); |
| 0 | 1549 oop filename = StringTable::intern(source, CHECK_0); |
| 1550 java_lang_StackTraceElement::set_fileName(element(), filename); | |
| 1551 // File in source line number | |
| 1552 int line_number; | |
| 1553 if (method->is_native()) { | |
| 1554 // Negative value different from -1 below, enabling Java code in | |
| 1555 // class java.lang.StackTraceElement to distinguish "native" from | |
| 1556 // "no LineNumberTable". | |
| 1557 line_number = -2; | |
| 1558 } else { | |
| 1559 // Returns -1 if no LineNumberTable, and otherwise actual line number | |
| 1560 line_number = method->line_number_from_bci(bci); | |
| 1561 } | |
| 1562 java_lang_StackTraceElement::set_lineNumber(element(), line_number); | |
| 1563 | |
| 1564 return element(); | |
| 1565 } | |
| 1566 | |
| 1567 | |
| 1568 void java_lang_reflect_AccessibleObject::compute_offsets() { | |
| 1142 | 1569 klassOop k = SystemDictionary::reflect_AccessibleObject_klass(); |
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1570 compute_offset(override_offset, k, vmSymbols::override_name(), vmSymbols::bool_signature()); |
| 0 | 1571 } |
| 1572 | |
| 1573 jboolean java_lang_reflect_AccessibleObject::override(oop reflect) { | |
| 1574 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1575 return (jboolean) reflect->bool_field(override_offset); | |
| 1576 } | |
| 1577 | |
| 1578 void java_lang_reflect_AccessibleObject::set_override(oop reflect, jboolean value) { | |
| 1579 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1580 reflect->bool_field_put(override_offset, (int) value); | |
| 1581 } | |
| 1582 | |
| 1583 void java_lang_reflect_Method::compute_offsets() { | |
| 1142 | 1584 klassOop k = SystemDictionary::reflect_Method_klass(); |
|
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1585 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1586 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1587 compute_offset(returnType_offset, k, vmSymbols::returnType_name(), vmSymbols::class_signature()); |
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1588 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1589 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1590 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1591 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 1592 // The generic signature and annotations fields are only present in 1.5 |
| 1593 signature_offset = -1; | |
| 1594 annotations_offset = -1; | |
| 1595 parameter_annotations_offset = -1; | |
| 1596 annotation_default_offset = -1; | |
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1597 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1598 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1599 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
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1600 compute_optional_offset(annotation_default_offset, k, vmSymbols::annotation_default_name(), vmSymbols::byte_array_signature()); |
| 0 | 1601 } |
| 1602 | |
| 1603 Handle java_lang_reflect_Method::create(TRAPS) { | |
| 1604 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1142 | 1605 klassOop klass = SystemDictionary::reflect_Method_klass(); |
| 0 | 1606 // This class is eagerly initialized during VM initialization, since we keep a refence |
| 1607 // to one of the methods | |
| 1608 assert(instanceKlass::cast(klass)->is_initialized(), "must be initialized"); | |
| 1609 return instanceKlass::cast(klass)->allocate_instance_handle(CHECK_NH); | |
| 1610 } | |
| 1611 | |
| 1612 oop java_lang_reflect_Method::clazz(oop reflect) { | |
| 1613 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1614 return reflect->obj_field(clazz_offset); | |
| 1615 } | |
| 1616 | |
| 1617 void java_lang_reflect_Method::set_clazz(oop reflect, oop value) { | |
| 1618 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1619 reflect->obj_field_put(clazz_offset, value); | |
| 1620 } | |
| 1621 | |
| 1622 int java_lang_reflect_Method::slot(oop reflect) { | |
| 1623 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1624 return reflect->int_field(slot_offset); | |
| 1625 } | |
| 1626 | |
| 1627 void java_lang_reflect_Method::set_slot(oop reflect, int value) { | |
| 1628 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1629 reflect->int_field_put(slot_offset, value); | |
| 1630 } | |
| 1631 | |
| 1632 oop java_lang_reflect_Method::name(oop method) { | |
| 1633 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1634 return method->obj_field(name_offset); | |
| 1635 } | |
| 1636 | |
| 1637 void java_lang_reflect_Method::set_name(oop method, oop value) { | |
| 1638 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1639 method->obj_field_put(name_offset, value); | |
| 1640 } | |
| 1641 | |
| 1642 oop java_lang_reflect_Method::return_type(oop method) { | |
| 1643 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1644 return method->obj_field(returnType_offset); | |
| 1645 } | |
| 1646 | |
| 1647 void java_lang_reflect_Method::set_return_type(oop method, oop value) { | |
| 1648 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1649 method->obj_field_put(returnType_offset, value); | |
| 1650 } | |
| 1651 | |
| 1652 oop java_lang_reflect_Method::parameter_types(oop method) { | |
| 1653 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1654 return method->obj_field(parameterTypes_offset); | |
| 1655 } | |
| 1656 | |
| 1657 void java_lang_reflect_Method::set_parameter_types(oop method, oop value) { | |
| 1658 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1659 method->obj_field_put(parameterTypes_offset, value); | |
| 1660 } | |
| 1661 | |
| 1662 oop java_lang_reflect_Method::exception_types(oop method) { | |
| 1663 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1664 return method->obj_field(exceptionTypes_offset); | |
| 1665 } | |
| 1666 | |
| 1667 void java_lang_reflect_Method::set_exception_types(oop method, oop value) { | |
| 1668 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1669 method->obj_field_put(exceptionTypes_offset, value); | |
| 1670 } | |
| 1671 | |
| 1672 int java_lang_reflect_Method::modifiers(oop method) { | |
| 1673 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1674 return method->int_field(modifiers_offset); | |
| 1675 } | |
| 1676 | |
| 1677 void java_lang_reflect_Method::set_modifiers(oop method, int value) { | |
| 1678 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1679 method->int_field_put(modifiers_offset, value); | |
| 1680 } | |
| 1681 | |
| 1682 bool java_lang_reflect_Method::has_signature_field() { | |
| 1683 return (signature_offset >= 0); | |
| 1684 } | |
| 1685 | |
| 1686 oop java_lang_reflect_Method::signature(oop method) { | |
| 1687 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1688 assert(has_signature_field(), "signature field must be present"); | |
| 1689 return method->obj_field(signature_offset); | |
| 1690 } | |
| 1691 | |
| 1692 void java_lang_reflect_Method::set_signature(oop method, oop value) { | |
| 1693 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1694 assert(has_signature_field(), "signature field must be present"); | |
| 1695 method->obj_field_put(signature_offset, value); | |
| 1696 } | |
| 1697 | |
| 1698 bool java_lang_reflect_Method::has_annotations_field() { | |
| 1699 return (annotations_offset >= 0); | |
| 1700 } | |
| 1701 | |
| 1702 oop java_lang_reflect_Method::annotations(oop method) { | |
| 1703 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1704 assert(has_annotations_field(), "annotations field must be present"); | |
| 1705 return method->obj_field(annotations_offset); | |
| 1706 } | |
| 1707 | |
| 1708 void java_lang_reflect_Method::set_annotations(oop method, oop value) { | |
| 1709 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1710 assert(has_annotations_field(), "annotations field must be present"); | |
| 1711 method->obj_field_put(annotations_offset, value); | |
| 1712 } | |
| 1713 | |
| 1714 bool java_lang_reflect_Method::has_parameter_annotations_field() { | |
| 1715 return (parameter_annotations_offset >= 0); | |
| 1716 } | |
| 1717 | |
| 1718 oop java_lang_reflect_Method::parameter_annotations(oop method) { | |
| 1719 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1720 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1721 return method->obj_field(parameter_annotations_offset); | |
| 1722 } | |
| 1723 | |
| 1724 void java_lang_reflect_Method::set_parameter_annotations(oop method, oop value) { | |
| 1725 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1726 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1727 method->obj_field_put(parameter_annotations_offset, value); | |
| 1728 } | |
| 1729 | |
| 1730 bool java_lang_reflect_Method::has_annotation_default_field() { | |
| 1731 return (annotation_default_offset >= 0); | |
| 1732 } | |
| 1733 | |
| 1734 oop java_lang_reflect_Method::annotation_default(oop method) { | |
| 1735 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1736 assert(has_annotation_default_field(), "annotation default field must be present"); | |
| 1737 return method->obj_field(annotation_default_offset); | |
| 1738 } | |
| 1739 | |
| 1740 void java_lang_reflect_Method::set_annotation_default(oop method, oop value) { | |
| 1741 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1742 assert(has_annotation_default_field(), "annotation default field must be present"); | |
| 1743 method->obj_field_put(annotation_default_offset, value); | |
| 1744 } | |
| 1745 | |
| 1746 void java_lang_reflect_Constructor::compute_offsets() { | |
| 1142 | 1747 klassOop k = SystemDictionary::reflect_Constructor_klass(); |
|
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1748 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1749 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1750 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1751 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1752 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 1753 // The generic signature and annotations fields are only present in 1.5 |
| 1754 signature_offset = -1; | |
| 1755 annotations_offset = -1; | |
| 1756 parameter_annotations_offset = -1; | |
|
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1757 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1758 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1759 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
| 0 | 1760 } |
| 1761 | |
| 1762 Handle java_lang_reflect_Constructor::create(TRAPS) { | |
| 1763 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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1764 Symbol* name = vmSymbols::java_lang_reflect_Constructor(); |
| 0 | 1765 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
| 1766 instanceKlassHandle klass (THREAD, k); | |
| 1767 // Ensure it is initialized | |
| 1768 klass->initialize(CHECK_NH); | |
| 1769 return klass->allocate_instance_handle(CHECK_NH); | |
| 1770 } | |
| 1771 | |
| 1772 oop java_lang_reflect_Constructor::clazz(oop reflect) { | |
| 1773 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1774 return reflect->obj_field(clazz_offset); | |
| 1775 } | |
| 1776 | |
| 1777 void java_lang_reflect_Constructor::set_clazz(oop reflect, oop value) { | |
| 1778 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1779 reflect->obj_field_put(clazz_offset, value); | |
| 1780 } | |
| 1781 | |
| 1782 oop java_lang_reflect_Constructor::parameter_types(oop constructor) { | |
| 1783 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1784 return constructor->obj_field(parameterTypes_offset); | |
| 1785 } | |
| 1786 | |
| 1787 void java_lang_reflect_Constructor::set_parameter_types(oop constructor, oop value) { | |
| 1788 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1789 constructor->obj_field_put(parameterTypes_offset, value); | |
| 1790 } | |
| 1791 | |
| 1792 oop java_lang_reflect_Constructor::exception_types(oop constructor) { | |
| 1793 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1794 return constructor->obj_field(exceptionTypes_offset); | |
| 1795 } | |
| 1796 | |
| 1797 void java_lang_reflect_Constructor::set_exception_types(oop constructor, oop value) { | |
| 1798 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1799 constructor->obj_field_put(exceptionTypes_offset, value); | |
| 1800 } | |
| 1801 | |
| 1802 int java_lang_reflect_Constructor::slot(oop reflect) { | |
| 1803 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1804 return reflect->int_field(slot_offset); | |
| 1805 } | |
| 1806 | |
| 1807 void java_lang_reflect_Constructor::set_slot(oop reflect, int value) { | |
| 1808 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1809 reflect->int_field_put(slot_offset, value); | |
| 1810 } | |
| 1811 | |
| 1812 int java_lang_reflect_Constructor::modifiers(oop constructor) { | |
| 1813 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1814 return constructor->int_field(modifiers_offset); | |
| 1815 } | |
| 1816 | |
| 1817 void java_lang_reflect_Constructor::set_modifiers(oop constructor, int value) { | |
| 1818 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1819 constructor->int_field_put(modifiers_offset, value); | |
| 1820 } | |
| 1821 | |
| 1822 bool java_lang_reflect_Constructor::has_signature_field() { | |
| 1823 return (signature_offset >= 0); | |
| 1824 } | |
| 1825 | |
| 1826 oop java_lang_reflect_Constructor::signature(oop constructor) { | |
| 1827 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1828 assert(has_signature_field(), "signature field must be present"); | |
| 1829 return constructor->obj_field(signature_offset); | |
| 1830 } | |
| 1831 | |
| 1832 void java_lang_reflect_Constructor::set_signature(oop constructor, oop value) { | |
| 1833 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1834 assert(has_signature_field(), "signature field must be present"); | |
| 1835 constructor->obj_field_put(signature_offset, value); | |
| 1836 } | |
| 1837 | |
| 1838 bool java_lang_reflect_Constructor::has_annotations_field() { | |
| 1839 return (annotations_offset >= 0); | |
| 1840 } | |
| 1841 | |
| 1842 oop java_lang_reflect_Constructor::annotations(oop constructor) { | |
| 1843 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1844 assert(has_annotations_field(), "annotations field must be present"); | |
| 1845 return constructor->obj_field(annotations_offset); | |
| 1846 } | |
| 1847 | |
| 1848 void java_lang_reflect_Constructor::set_annotations(oop constructor, oop value) { | |
| 1849 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1850 assert(has_annotations_field(), "annotations field must be present"); | |
| 1851 constructor->obj_field_put(annotations_offset, value); | |
| 1852 } | |
| 1853 | |
| 1854 bool java_lang_reflect_Constructor::has_parameter_annotations_field() { | |
| 1855 return (parameter_annotations_offset >= 0); | |
| 1856 } | |
| 1857 | |
| 1858 oop java_lang_reflect_Constructor::parameter_annotations(oop method) { | |
| 1859 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1860 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1861 return method->obj_field(parameter_annotations_offset); | |
| 1862 } | |
| 1863 | |
| 1864 void java_lang_reflect_Constructor::set_parameter_annotations(oop method, oop value) { | |
| 1865 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1866 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1867 method->obj_field_put(parameter_annotations_offset, value); | |
| 1868 } | |
| 1869 | |
| 1870 void java_lang_reflect_Field::compute_offsets() { | |
| 1142 | 1871 klassOop k = SystemDictionary::reflect_Field_klass(); |
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1872 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1873 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1874 compute_offset(type_offset, k, vmSymbols::type_name(), vmSymbols::class_signature()); |
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1875 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1876 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 1877 // The generic signature and annotations fields are only present in 1.5 |
| 1878 signature_offset = -1; | |
| 1879 annotations_offset = -1; | |
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1880 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1881 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
| 0 | 1882 } |
| 1883 | |
| 1884 Handle java_lang_reflect_Field::create(TRAPS) { | |
| 1885 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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1886 Symbol* name = vmSymbols::java_lang_reflect_Field(); |
| 0 | 1887 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
| 1888 instanceKlassHandle klass (THREAD, k); | |
| 1889 // Ensure it is initialized | |
| 1890 klass->initialize(CHECK_NH); | |
| 1891 return klass->allocate_instance_handle(CHECK_NH); | |
| 1892 } | |
| 1893 | |
| 1894 oop java_lang_reflect_Field::clazz(oop reflect) { | |
| 1895 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1896 return reflect->obj_field(clazz_offset); | |
| 1897 } | |
| 1898 | |
| 1899 void java_lang_reflect_Field::set_clazz(oop reflect, oop value) { | |
| 1900 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1901 reflect->obj_field_put(clazz_offset, value); | |
| 1902 } | |
| 1903 | |
| 1904 oop java_lang_reflect_Field::name(oop field) { | |
| 1905 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1906 return field->obj_field(name_offset); | |
| 1907 } | |
| 1908 | |
| 1909 void java_lang_reflect_Field::set_name(oop field, oop value) { | |
| 1910 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1911 field->obj_field_put(name_offset, value); | |
| 1912 } | |
| 1913 | |
| 1914 oop java_lang_reflect_Field::type(oop field) { | |
| 1915 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1916 return field->obj_field(type_offset); | |
| 1917 } | |
| 1918 | |
| 1919 void java_lang_reflect_Field::set_type(oop field, oop value) { | |
| 1920 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1921 field->obj_field_put(type_offset, value); | |
| 1922 } | |
| 1923 | |
| 1924 int java_lang_reflect_Field::slot(oop reflect) { | |
| 1925 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1926 return reflect->int_field(slot_offset); | |
| 1927 } | |
| 1928 | |
| 1929 void java_lang_reflect_Field::set_slot(oop reflect, int value) { | |
| 1930 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1931 reflect->int_field_put(slot_offset, value); | |
| 1932 } | |
| 1933 | |
| 1934 int java_lang_reflect_Field::modifiers(oop field) { | |
| 1935 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1936 return field->int_field(modifiers_offset); | |
| 1937 } | |
| 1938 | |
| 1939 void java_lang_reflect_Field::set_modifiers(oop field, int value) { | |
| 1940 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1941 field->int_field_put(modifiers_offset, value); | |
| 1942 } | |
| 1943 | |
| 1944 bool java_lang_reflect_Field::has_signature_field() { | |
| 1945 return (signature_offset >= 0); | |
| 1946 } | |
| 1947 | |
| 1948 oop java_lang_reflect_Field::signature(oop field) { | |
| 1949 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1950 assert(has_signature_field(), "signature field must be present"); | |
| 1951 return field->obj_field(signature_offset); | |
| 1952 } | |
| 1953 | |
| 1954 void java_lang_reflect_Field::set_signature(oop field, oop value) { | |
| 1955 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1956 assert(has_signature_field(), "signature field must be present"); | |
| 1957 field->obj_field_put(signature_offset, value); | |
| 1958 } | |
| 1959 | |
| 1960 bool java_lang_reflect_Field::has_annotations_field() { | |
| 1961 return (annotations_offset >= 0); | |
| 1962 } | |
| 1963 | |
| 1964 oop java_lang_reflect_Field::annotations(oop field) { | |
| 1965 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1966 assert(has_annotations_field(), "annotations field must be present"); | |
| 1967 return field->obj_field(annotations_offset); | |
| 1968 } | |
| 1969 | |
| 1970 void java_lang_reflect_Field::set_annotations(oop field, oop value) { | |
| 1971 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1972 assert(has_annotations_field(), "annotations field must be present"); | |
| 1973 field->obj_field_put(annotations_offset, value); | |
| 1974 } | |
| 1975 | |
| 1976 | |
| 1977 void sun_reflect_ConstantPool::compute_offsets() { | |
| 1142 | 1978 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
| 0 | 1979 // This null test can be removed post beta |
| 1980 if (k != NULL) { | |
|
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1981 compute_offset(_cp_oop_offset, k, vmSymbols::constantPoolOop_name(), vmSymbols::object_signature()); |
| 0 | 1982 } |
| 1983 } | |
| 1984 | |
| 1985 | |
| 1986 Handle sun_reflect_ConstantPool::create(TRAPS) { | |
| 1987 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1142 | 1988 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
| 0 | 1989 instanceKlassHandle klass (THREAD, k); |
| 1990 // Ensure it is initialized | |
| 1991 klass->initialize(CHECK_NH); | |
| 1992 return klass->allocate_instance_handle(CHECK_NH); | |
| 1993 } | |
| 1994 | |
| 1995 | |
| 1996 oop sun_reflect_ConstantPool::cp_oop(oop reflect) { | |
| 1997 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1998 return reflect->obj_field(_cp_oop_offset); | |
| 1999 } | |
| 2000 | |
| 2001 | |
| 2002 void sun_reflect_ConstantPool::set_cp_oop(oop reflect, oop value) { | |
| 2003 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2004 reflect->obj_field_put(_cp_oop_offset, value); | |
| 2005 } | |
| 2006 | |
| 2007 void sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets() { | |
| 1142 | 2008 klassOop k = SystemDictionary::reflect_UnsafeStaticFieldAccessorImpl_klass(); |
| 0 | 2009 // This null test can be removed post beta |
| 2010 if (k != NULL) { | |
|
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2011 compute_offset(_base_offset, k, |
| 0 | 2012 vmSymbols::base_name(), vmSymbols::object_signature()); |
| 2013 } | |
| 2014 } | |
| 2015 | |
|
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2016 oop java_lang_boxing_object::initialize_and_allocate(BasicType type, TRAPS) { |
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2017 klassOop k = SystemDictionary::box_klass(type); |
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2018 if (k == NULL) return NULL; |
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2019 instanceKlassHandle h (THREAD, k); |
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2020 if (!h->is_initialized()) h->initialize(CHECK_0); |
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2021 return h->allocate_instance(THREAD); |
| 0 | 2022 } |
| 2023 | |
| 2024 | |
| 2025 oop java_lang_boxing_object::create(BasicType type, jvalue* value, TRAPS) { | |
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2026 oop box = initialize_and_allocate(type, CHECK_0); |
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2027 if (box == NULL) return NULL; |
| 0 | 2028 switch (type) { |
| 2029 case T_BOOLEAN: | |
| 2030 box->bool_field_put(value_offset, value->z); | |
| 2031 break; | |
| 2032 case T_CHAR: | |
| 2033 box->char_field_put(value_offset, value->c); | |
| 2034 break; | |
| 2035 case T_FLOAT: | |
| 2036 box->float_field_put(value_offset, value->f); | |
| 2037 break; | |
| 2038 case T_DOUBLE: | |
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2039 box->double_field_put(long_value_offset, value->d); |
| 0 | 2040 break; |
| 2041 case T_BYTE: | |
| 2042 box->byte_field_put(value_offset, value->b); | |
| 2043 break; | |
| 2044 case T_SHORT: | |
| 2045 box->short_field_put(value_offset, value->s); | |
| 2046 break; | |
| 2047 case T_INT: | |
| 2048 box->int_field_put(value_offset, value->i); | |
| 2049 break; | |
| 2050 case T_LONG: | |
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2051 box->long_field_put(long_value_offset, value->j); |
| 0 | 2052 break; |
| 2053 default: | |
| 2054 return NULL; | |
| 2055 } | |
| 2056 return box; | |
| 2057 } | |
| 2058 | |
| 2059 | |
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2060 BasicType java_lang_boxing_object::basic_type(oop box) { |
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2061 if (box == NULL) return T_ILLEGAL; |
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2062 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2063 if (type == T_OBJECT) // 'unknown' value returned by SD::bkt |
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2064 return T_ILLEGAL; |
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2065 return type; |
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2066 } |
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2067 |
|
60b728ec77c1
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|
2068 |
| 0 | 2069 BasicType java_lang_boxing_object::get_value(oop box, jvalue* value) { |
|
132
60b728ec77c1
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|
2070 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2071 switch (type) { |
|
60b728ec77c1
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jrose
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diff
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|
2072 case T_BOOLEAN: |
| 0 | 2073 value->z = box->bool_field(value_offset); |
|
132
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2074 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2075 case T_CHAR: |
| 0 | 2076 value->c = box->char_field(value_offset); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2077 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2078 case T_FLOAT: |
| 0 | 2079 value->f = box->float_field(value_offset); |
|
132
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jrose
parents:
113
diff
changeset
|
2080 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2081 case T_DOUBLE: |
|
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
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diff
changeset
|
2082 value->d = box->double_field(long_value_offset); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2083 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2084 case T_BYTE: |
| 0 | 2085 value->b = box->byte_field(value_offset); |
|
132
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2086 break; |
|
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2087 case T_SHORT: |
| 0 | 2088 value->s = box->short_field(value_offset); |
|
132
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jrose
parents:
113
diff
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|
2089 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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113
diff
changeset
|
2090 case T_INT: |
| 0 | 2091 value->i = box->int_field(value_offset); |
|
132
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jrose
parents:
113
diff
changeset
|
2092 break; |
|
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2093 case T_LONG: |
|
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
2094 value->j = box->long_field(long_value_offset); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2095 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2096 default: |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2097 return T_ILLEGAL; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2098 } // end switch |
|
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2099 return type; |
| 0 | 2100 } |
| 2101 | |
| 2102 | |
| 2103 BasicType java_lang_boxing_object::set_value(oop box, jvalue* value) { | |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2104 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2105 switch (type) { |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2106 case T_BOOLEAN: |
| 0 | 2107 box->bool_field_put(value_offset, value->z); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2108 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2109 case T_CHAR: |
| 0 | 2110 box->char_field_put(value_offset, value->c); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2111 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2112 case T_FLOAT: |
| 0 | 2113 box->float_field_put(value_offset, value->f); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2114 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2115 case T_DOUBLE: |
|
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
2116 box->double_field_put(long_value_offset, value->d); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2117 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2118 case T_BYTE: |
| 0 | 2119 box->byte_field_put(value_offset, value->b); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2120 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2121 case T_SHORT: |
| 0 | 2122 box->short_field_put(value_offset, value->s); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2123 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2124 case T_INT: |
| 0 | 2125 box->int_field_put(value_offset, value->i); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2126 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2127 case T_LONG: |
|
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
2128 box->long_field_put(long_value_offset, value->j); |
|
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2129 break; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2130 default: |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2131 return T_ILLEGAL; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2132 } // end switch |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2133 return type; |
| 0 | 2134 } |
| 2135 | |
| 2136 | |
|
665
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2137 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
|
2138 switch (type) { |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2139 case T_BOOLEAN: st->print("%s", value->z ? "true" : "false"); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2140 case T_CHAR: st->print("%d", value->c); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2141 case T_BYTE: st->print("%d", value->b); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2142 case T_SHORT: st->print("%d", value->s); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2143 case T_INT: st->print("%d", value->i); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2144 case T_LONG: st->print(INT64_FORMAT, value->j); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2145 case T_FLOAT: st->print("%f", value->f); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2146 case T_DOUBLE: st->print("%lf", value->d); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2147 default: st->print("type %d?", type); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2148 } |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2149 } |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2150 |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2151 |
| 0 | 2152 // 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
|
2153 oop java_lang_ref_Reference::pending_list_lock() { |
| 1142 | 2154 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2155 char *addr = (((char *)ik->start_of_static_fields()) + static_lock_offset); |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2156 if (UseCompressedOops) { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2157 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
|
2158 } else { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2159 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
|
2160 } |
| 0 | 2161 } |
| 2162 | |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2163 HeapWord *java_lang_ref_Reference::pending_list_addr() { |
| 1142 | 2164 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2165 char *addr = (((char *)ik->start_of_static_fields()) + static_pending_offset); |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2166 // 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
|
2167 return (HeapWord*)addr; |
| 0 | 2168 } |
| 2169 | |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2170 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
|
2171 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
|
2172 if (UseCompressedOops) { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2173 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
|
2174 } else { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2175 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
|
2176 } |
| 0 | 2177 } |
| 2178 | |
| 2179 | |
| 2180 // Support for java_lang_ref_SoftReference | |
| 2181 | |
| 2182 jlong java_lang_ref_SoftReference::timestamp(oop ref) { | |
| 2183 return ref->long_field(timestamp_offset); | |
| 2184 } | |
| 2185 | |
| 2186 jlong java_lang_ref_SoftReference::clock() { | |
| 1142 | 2187 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
| 0 | 2188 int offset = ik->offset_of_static_fields() + static_clock_offset; |
| 2189 | |
| 1142 | 2190 return SystemDictionary::SoftReference_klass()->long_field(offset); |
| 0 | 2191 } |
| 2192 | |
| 2193 void java_lang_ref_SoftReference::set_clock(jlong value) { | |
| 1142 | 2194 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
| 0 | 2195 int offset = ik->offset_of_static_fields() + static_clock_offset; |
| 2196 | |
| 1142 | 2197 SystemDictionary::SoftReference_klass()->long_field_put(offset, value); |
| 0 | 2198 } |
| 2199 | |
| 2200 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2201 // Support for java_lang_invoke_MethodHandle |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2202 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2203 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
|
2204 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
|
2205 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
|
2206 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
|
2207 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2208 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
|
2209 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
|
2210 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
|
2211 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
|
2212 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
|
2213 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
|
2214 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2215 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
|
2216 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2217 int java_lang_invoke_BoundMethodHandle::_argument_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2218 int java_lang_invoke_BoundMethodHandle::_vmargslot_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2219 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2220 int java_lang_invoke_AdapterMethodHandle::_conversion_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2221 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2222 void java_lang_invoke_MethodHandle::compute_offsets() { |
| 710 | 2223 klassOop k = SystemDictionary::MethodHandle_klass(); |
| 2224 if (k != NULL && EnableMethodHandles) { | |
|
2356
72dee110246f
6839872: remove implementation inheritance from JSR 292 APIs
jrose
parents:
2177
diff
changeset
|
2225 bool allow_super = false; |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2226 if (AllowTransitionalJSR292) allow_super = true; // temporary, to access java.dyn.MethodHandleImpl |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2227 compute_offset(_type_offset, k, vmSymbols::type_name(), vmSymbols::java_lang_invoke_MethodType_signature(), allow_super); |
|
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2228 compute_offset(_vmtarget_offset, k, vmSymbols::vmtarget_name(), vmSymbols::object_signature(), allow_super); |
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2229 compute_offset(_vmentry_offset, k, vmSymbols::vmentry_name(), vmSymbols::machine_word_signature(), allow_super); |
| 710 | 2230 |
| 2231 // Note: MH.vmslots (if it is present) is a hoisted copy of MH.type.form.vmslots. | |
| 2232 // It is optional pending experiments to keep or toss. | |
|
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2233 compute_optional_offset(_vmslots_offset, k, vmSymbols::vmslots_name(), vmSymbols::int_signature(), allow_super); |
| 710 | 2234 } |
| 2235 } | |
| 2236 | |
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2237 void java_lang_invoke_MemberName::compute_offsets() { |
| 710 | 2238 klassOop k = SystemDictionary::MemberName_klass(); |
| 2239 if (k != NULL && EnableMethodHandles) { | |
| 2240 compute_offset(_clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); | |
| 2241 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); | |
| 2242 compute_offset(_type_offset, k, vmSymbols::type_name(), vmSymbols::object_signature()); | |
| 2243 compute_offset(_flags_offset, k, vmSymbols::flags_name(), vmSymbols::int_signature()); | |
| 2244 compute_offset(_vmtarget_offset, k, vmSymbols::vmtarget_name(), vmSymbols::object_signature()); | |
| 2245 compute_offset(_vmindex_offset, k, vmSymbols::vmindex_name(), vmSymbols::int_signature()); | |
| 2246 } | |
| 2247 } | |
| 2248 | |
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2249 void java_lang_invoke_DirectMethodHandle::compute_offsets() { |
| 710 | 2250 klassOop k = SystemDictionary::DirectMethodHandle_klass(); |
| 2251 if (k != NULL && EnableMethodHandles) { | |
| 2252 compute_offset(_vmindex_offset, k, vmSymbols::vmindex_name(), vmSymbols::int_signature(), true); | |
| 2253 } | |
| 2254 } | |
| 2255 | |
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2256 void java_lang_invoke_BoundMethodHandle::compute_offsets() { |
| 710 | 2257 klassOop k = SystemDictionary::BoundMethodHandle_klass(); |
| 2258 if (k != NULL && EnableMethodHandles) { | |
| 2259 compute_offset(_vmargslot_offset, k, vmSymbols::vmargslot_name(), vmSymbols::int_signature(), true); | |
| 2260 compute_offset(_argument_offset, k, vmSymbols::argument_name(), vmSymbols::object_signature(), true); | |
| 2261 } | |
| 2262 } | |
| 2263 | |
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2264 void java_lang_invoke_AdapterMethodHandle::compute_offsets() { |
| 710 | 2265 klassOop k = SystemDictionary::AdapterMethodHandle_klass(); |
| 2266 if (k != NULL && EnableMethodHandles) { | |
| 2267 compute_offset(_conversion_offset, k, vmSymbols::conversion_name(), vmSymbols::int_signature(), true); | |
| 2268 } | |
| 2269 } | |
| 2270 | |
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2271 oop java_lang_invoke_MethodHandle::type(oop mh) { |
| 710 | 2272 return mh->obj_field(_type_offset); |
| 2273 } | |
| 2274 | |
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2275 void java_lang_invoke_MethodHandle::set_type(oop mh, oop mtype) { |
| 710 | 2276 mh->obj_field_put(_type_offset, mtype); |
| 2277 } | |
| 2278 | |
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2279 int java_lang_invoke_MethodHandle::vmslots(oop mh) { |
| 710 | 2280 int vmslots_offset = _vmslots_offset; |
| 2281 if (vmslots_offset != 0) { | |
| 2282 #ifdef ASSERT | |
| 2283 int x = mh->int_field(vmslots_offset); | |
| 2284 int y = compute_vmslots(mh); | |
| 2285 assert(x == y, "correct hoisted value"); | |
| 2286 #endif | |
| 2287 return mh->int_field(vmslots_offset); | |
| 2288 } else { | |
| 2289 return compute_vmslots(mh); | |
| 2290 } | |
| 2291 } | |
| 2292 | |
| 2293 // if MH.vmslots exists, hoist into it the value of type.form.vmslots | |
|
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2294 void java_lang_invoke_MethodHandle::init_vmslots(oop mh) { |
| 710 | 2295 int vmslots_offset = _vmslots_offset; |
| 2296 if (vmslots_offset != 0) { | |
| 2297 mh->int_field_put(vmslots_offset, compute_vmslots(mh)); | |
| 2298 } | |
| 2299 } | |
| 2300 | |
| 2301 // fetch type.form.vmslots, which is the number of JVM stack slots | |
| 2302 // required to carry the arguments of this MH | |
|
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2303 int java_lang_invoke_MethodHandle::compute_vmslots(oop mh) { |
| 710 | 2304 oop mtype = type(mh); |
| 2305 if (mtype == NULL) return 0; // Java code would get NPE | |
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2306 oop form = java_lang_invoke_MethodType::form(mtype); |
| 710 | 2307 if (form == NULL) return 0; // Java code would get NPE |
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2308 return java_lang_invoke_MethodTypeForm::vmslots(form); |
| 710 | 2309 } |
| 2310 | |
| 2311 // fetch the low-level entry point for this mh | |
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2312 MethodHandleEntry* java_lang_invoke_MethodHandle::vmentry(oop mh) { |
| 710 | 2313 return (MethodHandleEntry*) mh->address_field(_vmentry_offset); |
| 2314 } | |
| 2315 | |
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2316 void java_lang_invoke_MethodHandle::set_vmentry(oop mh, MethodHandleEntry* me) { |
| 710 | 2317 assert(_vmentry_offset != 0, "must be present"); |
| 2318 | |
| 2319 // This is always the final step that initializes a valid method handle: | |
| 2320 mh->release_address_field_put(_vmentry_offset, (address) me); | |
| 2321 | |
| 2322 // There should be enough memory barriers on exit from native methods | |
| 2323 // to ensure that the MH is fully initialized to all threads before | |
| 2324 // Java code can publish it in global data structures. | |
| 2325 // But just in case, we use release_address_field_put. | |
| 2326 } | |
| 2327 | |
| 2328 /// MemberName accessors | |
| 2329 | |
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2330 oop java_lang_invoke_MemberName::clazz(oop mname) { |
| 710 | 2331 assert(is_instance(mname), "wrong type"); |
| 2332 return mname->obj_field(_clazz_offset); | |
| 2333 } | |
| 2334 | |
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2335 void java_lang_invoke_MemberName::set_clazz(oop mname, oop clazz) { |
| 710 | 2336 assert(is_instance(mname), "wrong type"); |
| 2337 mname->obj_field_put(_clazz_offset, clazz); | |
| 2338 } | |
| 2339 | |
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2340 oop java_lang_invoke_MemberName::name(oop mname) { |
| 710 | 2341 assert(is_instance(mname), "wrong type"); |
| 2342 return mname->obj_field(_name_offset); | |
| 2343 } | |
| 2344 | |
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2345 void java_lang_invoke_MemberName::set_name(oop mname, oop name) { |
| 710 | 2346 assert(is_instance(mname), "wrong type"); |
| 2347 mname->obj_field_put(_name_offset, name); | |
| 2348 } | |
| 2349 | |
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2350 oop java_lang_invoke_MemberName::type(oop mname) { |
| 710 | 2351 assert(is_instance(mname), "wrong type"); |
| 2352 return mname->obj_field(_type_offset); | |
| 2353 } | |
| 2354 | |
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2355 void java_lang_invoke_MemberName::set_type(oop mname, oop type) { |
| 710 | 2356 assert(is_instance(mname), "wrong type"); |
| 2357 mname->obj_field_put(_type_offset, type); | |
| 2358 } | |
| 2359 | |
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2360 int java_lang_invoke_MemberName::flags(oop mname) { |
| 710 | 2361 assert(is_instance(mname), "wrong type"); |
| 2362 return mname->int_field(_flags_offset); | |
| 2363 } | |
| 2364 | |
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|
2365 void java_lang_invoke_MemberName::set_flags(oop mname, int flags) { |
| 710 | 2366 assert(is_instance(mname), "wrong type"); |
| 2367 mname->int_field_put(_flags_offset, flags); | |
| 2368 } | |
| 2369 | |
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2370 oop java_lang_invoke_MemberName::vmtarget(oop mname) { |
| 710 | 2371 assert(is_instance(mname), "wrong type"); |
| 2372 return mname->obj_field(_vmtarget_offset); | |
| 2373 } | |
| 2374 | |
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2375 void java_lang_invoke_MemberName::set_vmtarget(oop mname, oop ref) { |
| 710 | 2376 assert(is_instance(mname), "wrong type"); |
| 2377 mname->obj_field_put(_vmtarget_offset, ref); | |
| 2378 } | |
| 2379 | |
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2380 int java_lang_invoke_MemberName::vmindex(oop mname) { |
| 710 | 2381 assert(is_instance(mname), "wrong type"); |
| 2382 return mname->int_field(_vmindex_offset); | |
| 2383 } | |
| 2384 | |
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2385 void java_lang_invoke_MemberName::set_vmindex(oop mname, int index) { |
| 710 | 2386 assert(is_instance(mname), "wrong type"); |
| 2387 mname->int_field_put(_vmindex_offset, index); | |
| 2388 } | |
| 2389 | |
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|
2390 oop java_lang_invoke_MethodHandle::vmtarget(oop mh) { |
| 710 | 2391 assert(is_instance(mh), "MH only"); |
| 2392 return mh->obj_field(_vmtarget_offset); | |
| 2393 } | |
| 2394 | |
|
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|
2395 void java_lang_invoke_MethodHandle::set_vmtarget(oop mh, oop ref) { |
| 710 | 2396 assert(is_instance(mh), "MH only"); |
| 2397 mh->obj_field_put(_vmtarget_offset, ref); | |
| 2398 } | |
| 2399 | |
|
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|
2400 int java_lang_invoke_DirectMethodHandle::vmindex(oop mh) { |
| 710 | 2401 assert(is_instance(mh), "DMH only"); |
| 2402 return mh->int_field(_vmindex_offset); | |
| 2403 } | |
| 2404 | |
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|
2405 void java_lang_invoke_DirectMethodHandle::set_vmindex(oop mh, int index) { |
| 710 | 2406 assert(is_instance(mh), "DMH only"); |
| 2407 mh->int_field_put(_vmindex_offset, index); | |
| 2408 } | |
| 2409 | |
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|
2410 int java_lang_invoke_BoundMethodHandle::vmargslot(oop mh) { |
| 710 | 2411 assert(is_instance(mh), "BMH only"); |
| 2412 return mh->int_field(_vmargslot_offset); | |
| 2413 } | |
| 2414 | |
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|
2415 oop java_lang_invoke_BoundMethodHandle::argument(oop mh) { |
| 710 | 2416 assert(is_instance(mh), "BMH only"); |
| 2417 return mh->obj_field(_argument_offset); | |
| 2418 } | |
| 2419 | |
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|
2420 int java_lang_invoke_AdapterMethodHandle::conversion(oop mh) { |
| 710 | 2421 assert(is_instance(mh), "AMH only"); |
| 2422 return mh->int_field(_conversion_offset); | |
| 2423 } | |
| 2424 | |
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|
2425 void java_lang_invoke_AdapterMethodHandle::set_conversion(oop mh, int conv) { |
| 710 | 2426 assert(is_instance(mh), "AMH only"); |
| 2427 mh->int_field_put(_conversion_offset, conv); | |
| 2428 } | |
| 2429 | |
| 2430 | |
|
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|
2431 // Support for java_lang_invoke_MethodType |
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2432 |
|
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|
2433 int java_lang_invoke_MethodType::_rtype_offset; |
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|
2434 int java_lang_invoke_MethodType::_ptypes_offset; |
|
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|
2435 int java_lang_invoke_MethodType::_form_offset; |
|
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2436 |
|
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|
2437 void java_lang_invoke_MethodType::compute_offsets() { |
| 710 | 2438 klassOop k = SystemDictionary::MethodType_klass(); |
| 2439 if (k != NULL) { | |
| 2440 compute_offset(_rtype_offset, k, vmSymbols::rtype_name(), vmSymbols::class_signature()); | |
| 2441 compute_offset(_ptypes_offset, k, vmSymbols::ptypes_name(), vmSymbols::class_array_signature()); | |
|
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|
2442 compute_offset(_form_offset, k, vmSymbols::form_name(), vmSymbols::java_lang_invoke_MethodTypeForm_signature()); |
| 710 | 2443 } |
| 2444 } | |
| 2445 | |
|
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|
2446 void java_lang_invoke_MethodType::print_signature(oop mt, outputStream* st) { |
| 710 | 2447 st->print("("); |
| 2448 objArrayOop pts = ptypes(mt); | |
| 2449 for (int i = 0, limit = pts->length(); i < limit; i++) { | |
| 2450 java_lang_Class::print_signature(pts->obj_at(i), st); | |
| 2451 } | |
| 2452 st->print(")"); | |
| 2453 java_lang_Class::print_signature(rtype(mt), st); | |
| 2454 } | |
| 2455 | |
|
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|
2456 Symbol* java_lang_invoke_MethodType::as_signature(oop mt, bool intern_if_not_found, TRAPS) { |
| 710 | 2457 ResourceMark rm; |
| 2458 stringStream buffer(128); | |
| 2459 print_signature(mt, &buffer); | |
| 2460 const char* sigstr = buffer.base(); | |
| 2461 int siglen = (int) buffer.size(); | |
|
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|
2462 Symbol *name; |
|
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|
2463 if (!intern_if_not_found) { |
|
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|
2464 name = SymbolTable::probe(sigstr, siglen); |
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|
2465 } else { |
|
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|
2466 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
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|
2467 } |
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|
2468 return name; |
| 710 | 2469 } |
| 2470 | |
|
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|
2471 oop java_lang_invoke_MethodType::rtype(oop mt) { |
| 710 | 2472 assert(is_instance(mt), "must be a MethodType"); |
| 2473 return mt->obj_field(_rtype_offset); | |
| 2474 } | |
| 2475 | |
|
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|
2476 objArrayOop java_lang_invoke_MethodType::ptypes(oop mt) { |
| 710 | 2477 assert(is_instance(mt), "must be a MethodType"); |
| 2478 return (objArrayOop) mt->obj_field(_ptypes_offset); | |
| 2479 } | |
| 2480 | |
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|
2481 oop java_lang_invoke_MethodType::form(oop mt) { |
| 710 | 2482 assert(is_instance(mt), "must be a MethodType"); |
| 2483 return mt->obj_field(_form_offset); | |
| 2484 } | |
| 2485 | |
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|
2486 oop java_lang_invoke_MethodType::ptype(oop mt, int idx) { |
| 710 | 2487 return ptypes(mt)->obj_at(idx); |
| 2488 } | |
| 2489 | |
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|
2490 int java_lang_invoke_MethodType::ptype_count(oop mt) { |
|
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2491 return ptypes(mt)->length(); |
|
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|
2492 } |
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|
2493 |
| 710 | 2494 |
| 2495 | |
|
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|
2496 // Support for java_lang_invoke_MethodTypeForm |
|
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2497 |
|
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2498 int java_lang_invoke_MethodTypeForm::_vmslots_offset; |
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2499 int java_lang_invoke_MethodTypeForm::_erasedType_offset; |
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2500 int java_lang_invoke_MethodTypeForm::_genericInvoker_offset; |
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2501 |
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2502 void java_lang_invoke_MethodTypeForm::compute_offsets() { |
| 710 | 2503 klassOop k = SystemDictionary::MethodTypeForm_klass(); |
| 2504 if (k != NULL) { | |
| 2505 compute_optional_offset(_vmslots_offset, k, vmSymbols::vmslots_name(), vmSymbols::int_signature(), true); | |
|
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2506 compute_optional_offset(_erasedType_offset, k, vmSymbols::erasedType_name(), vmSymbols::java_lang_invoke_MethodType_signature(), true); |
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2507 compute_optional_offset(_genericInvoker_offset, k, vmSymbols::genericInvoker_name(), vmSymbols::java_lang_invoke_MethodHandle_signature(), true); |
|
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2508 if (_genericInvoker_offset == 0) _genericInvoker_offset = -1; // set to explicit "empty" value |
| 710 | 2509 } |
| 2510 } | |
| 2511 | |
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2512 int java_lang_invoke_MethodTypeForm::vmslots(oop mtform) { |
| 710 | 2513 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
| 2514 return mtform->int_field(_vmslots_offset); | |
| 2515 } | |
| 2516 | |
|
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2517 oop java_lang_invoke_MethodTypeForm::erasedType(oop mtform) { |
| 710 | 2518 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
| 2519 return mtform->obj_field(_erasedType_offset); | |
| 2520 } | |
| 2521 | |
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2522 oop java_lang_invoke_MethodTypeForm::genericInvoker(oop mtform) { |
|
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2523 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
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2524 return mtform->obj_field(_genericInvoker_offset); |
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2525 } |
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2526 |
| 710 | 2527 |
|
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2528 // Support for java_lang_invoke_CallSite |
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2529 |
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2530 int java_lang_invoke_CallSite::_target_offset; |
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2531 |
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2532 void java_lang_invoke_CallSite::compute_offsets() { |
|
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2533 if (!EnableInvokeDynamic) return; |
|
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2534 klassOop k = SystemDictionary::CallSite_klass(); |
|
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2535 if (k != NULL) { |
|
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2536 compute_offset(_target_offset, k, vmSymbols::target_name(), vmSymbols::java_lang_invoke_MethodHandle_signature()); |
|
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2537 } |
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|
2538 } |
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|
2539 |
|
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2540 oop java_lang_invoke_CallSite::target(oop site) { |
|
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2541 return site->obj_field(_target_offset); |
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|
2542 } |
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2543 |
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2544 void java_lang_invoke_CallSite::set_target(oop site, oop target) { |
|
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2545 site->obj_field_put(_target_offset, target); |
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2546 } |
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2547 |
| 710 | 2548 |
| 0 | 2549 // Support for java_security_AccessControlContext |
| 2550 | |
| 2551 int java_security_AccessControlContext::_context_offset = 0; | |
| 2552 int java_security_AccessControlContext::_privilegedContext_offset = 0; | |
| 2553 int java_security_AccessControlContext::_isPrivileged_offset = 0; | |
| 2554 | |
| 2555 void java_security_AccessControlContext::compute_offsets() { | |
| 2556 assert(_isPrivileged_offset == 0, "offsets should be initialized only once"); | |
| 2557 fieldDescriptor fd; | |
| 2558 instanceKlass* ik = instanceKlass::cast(SystemDictionary::AccessControlContext_klass()); | |
| 2559 | |
| 2560 if (!ik->find_local_field(vmSymbols::context_name(), vmSymbols::protectiondomain_signature(), &fd)) { | |
| 2561 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2562 } | |
| 2563 _context_offset = fd.offset(); | |
| 2564 | |
| 2565 if (!ik->find_local_field(vmSymbols::privilegedContext_name(), vmSymbols::accesscontrolcontext_signature(), &fd)) { | |
| 2566 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2567 } | |
| 2568 _privilegedContext_offset = fd.offset(); | |
| 2569 | |
| 2570 if (!ik->find_local_field(vmSymbols::isPrivileged_name(), vmSymbols::bool_signature(), &fd)) { | |
| 2571 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2572 } | |
| 2573 _isPrivileged_offset = fd.offset(); | |
| 2574 } | |
| 2575 | |
| 2576 | |
| 2577 oop java_security_AccessControlContext::create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS) { | |
| 2578 assert(_isPrivileged_offset != 0, "offsets should have been initialized"); | |
| 2579 // Ensure klass is initialized | |
| 2580 instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->initialize(CHECK_0); | |
| 2581 // Allocate result | |
| 2582 oop result = instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->allocate_instance(CHECK_0); | |
| 2583 // Fill in values | |
| 2584 result->obj_field_put(_context_offset, context()); | |
| 2585 result->obj_field_put(_privilegedContext_offset, privileged_context()); | |
| 2586 result->bool_field_put(_isPrivileged_offset, isPrivileged); | |
| 2587 return result; | |
| 2588 } | |
| 2589 | |
| 2590 | |
| 2591 // Support for java_lang_ClassLoader | |
| 2592 | |
| 2593 oop java_lang_ClassLoader::parent(oop loader) { | |
| 2594 assert(loader->is_oop(), "loader must be oop"); | |
| 2595 return loader->obj_field(parent_offset); | |
| 2596 } | |
| 2597 | |
| 2598 | |
| 2599 bool java_lang_ClassLoader::is_trusted_loader(oop loader) { | |
| 2600 // Fix for 4474172; see evaluation for more details | |
| 2601 loader = non_reflection_class_loader(loader); | |
| 2602 | |
| 2603 oop cl = SystemDictionary::java_system_loader(); | |
| 2604 while(cl != NULL) { | |
| 2605 if (cl == loader) return true; | |
| 2606 cl = parent(cl); | |
| 2607 } | |
| 2608 return false; | |
| 2609 } | |
| 2610 | |
| 2611 oop java_lang_ClassLoader::non_reflection_class_loader(oop loader) { | |
| 2612 if (loader != NULL) { | |
| 2613 // See whether this is one of the class loaders associated with | |
| 2614 // the generated bytecodes for reflection, and if so, "magically" | |
| 2615 // delegate to its parent to prevent class loading from occurring | |
| 2616 // in places where applications using reflection didn't expect it. | |
| 1142 | 2617 klassOop delegating_cl_class = SystemDictionary::reflect_DelegatingClassLoader_klass(); |
| 0 | 2618 // This might be null in non-1.4 JDKs |
| 2619 if (delegating_cl_class != NULL && loader->is_a(delegating_cl_class)) { | |
| 2620 return parent(loader); | |
| 2621 } | |
| 2622 } | |
| 2623 return loader; | |
| 2624 } | |
| 2625 | |
| 2626 | |
| 2627 // Support for java_lang_System | |
| 2628 | |
| 2629 void java_lang_System::compute_offsets() { | |
| 2630 assert(offset_of_static_fields == 0, "offsets should be initialized only once"); | |
| 2631 | |
| 1142 | 2632 instanceKlass* ik = instanceKlass::cast(SystemDictionary::System_klass()); |
| 0 | 2633 offset_of_static_fields = ik->offset_of_static_fields(); |
| 2634 } | |
| 2635 | |
| 2636 int java_lang_System::in_offset_in_bytes() { | |
| 2637 return (offset_of_static_fields + static_in_offset); | |
| 2638 } | |
| 2639 | |
| 2640 | |
| 2641 int java_lang_System::out_offset_in_bytes() { | |
| 2642 return (offset_of_static_fields + static_out_offset); | |
| 2643 } | |
| 2644 | |
| 2645 | |
| 2646 int java_lang_System::err_offset_in_bytes() { | |
| 2647 return (offset_of_static_fields + static_err_offset); | |
| 2648 } | |
| 2649 | |
| 2650 | |
| 2651 | |
| 2652 int java_lang_String::value_offset; | |
| 2653 int java_lang_String::offset_offset; | |
| 2654 int java_lang_String::count_offset; | |
| 2655 int java_lang_String::hash_offset; | |
| 2656 int java_lang_Class::klass_offset; | |
| 2657 int java_lang_Class::array_klass_offset; | |
| 2658 int java_lang_Class::resolved_constructor_offset; | |
| 2659 int java_lang_Class::number_of_fake_oop_fields; | |
| 2660 int java_lang_Throwable::backtrace_offset; | |
| 2661 int java_lang_Throwable::detailMessage_offset; | |
| 2662 int java_lang_Throwable::cause_offset; | |
| 2663 int java_lang_Throwable::stackTrace_offset; | |
| 2664 int java_lang_reflect_AccessibleObject::override_offset; | |
| 2665 int java_lang_reflect_Method::clazz_offset; | |
| 2666 int java_lang_reflect_Method::name_offset; | |
| 2667 int java_lang_reflect_Method::returnType_offset; | |
| 2668 int java_lang_reflect_Method::parameterTypes_offset; | |
| 2669 int java_lang_reflect_Method::exceptionTypes_offset; | |
| 2670 int java_lang_reflect_Method::slot_offset; | |
| 2671 int java_lang_reflect_Method::modifiers_offset; | |
| 2672 int java_lang_reflect_Method::signature_offset; | |
| 2673 int java_lang_reflect_Method::annotations_offset; | |
| 2674 int java_lang_reflect_Method::parameter_annotations_offset; | |
| 2675 int java_lang_reflect_Method::annotation_default_offset; | |
| 2676 int java_lang_reflect_Constructor::clazz_offset; | |
| 2677 int java_lang_reflect_Constructor::parameterTypes_offset; | |
| 2678 int java_lang_reflect_Constructor::exceptionTypes_offset; | |
| 2679 int java_lang_reflect_Constructor::slot_offset; | |
| 2680 int java_lang_reflect_Constructor::modifiers_offset; | |
| 2681 int java_lang_reflect_Constructor::signature_offset; | |
| 2682 int java_lang_reflect_Constructor::annotations_offset; | |
| 2683 int java_lang_reflect_Constructor::parameter_annotations_offset; | |
| 2684 int java_lang_reflect_Field::clazz_offset; | |
| 2685 int java_lang_reflect_Field::name_offset; | |
| 2686 int java_lang_reflect_Field::type_offset; | |
| 2687 int java_lang_reflect_Field::slot_offset; | |
| 2688 int java_lang_reflect_Field::modifiers_offset; | |
| 2689 int java_lang_reflect_Field::signature_offset; | |
| 2690 int java_lang_reflect_Field::annotations_offset; | |
| 2691 int java_lang_boxing_object::value_offset; | |
|
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2692 int java_lang_boxing_object::long_value_offset; |
| 0 | 2693 int java_lang_ref_Reference::referent_offset; |
| 2694 int java_lang_ref_Reference::queue_offset; | |
| 2695 int java_lang_ref_Reference::next_offset; | |
| 2696 int java_lang_ref_Reference::discovered_offset; | |
| 2697 int java_lang_ref_Reference::static_lock_offset; | |
| 2698 int java_lang_ref_Reference::static_pending_offset; | |
| 2699 int java_lang_ref_Reference::number_of_fake_oop_fields; | |
| 2700 int java_lang_ref_SoftReference::timestamp_offset; | |
| 2701 int java_lang_ref_SoftReference::static_clock_offset; | |
| 2702 int java_lang_ClassLoader::parent_offset; | |
| 2703 int java_lang_System::offset_of_static_fields; | |
| 2704 int java_lang_System::static_in_offset; | |
| 2705 int java_lang_System::static_out_offset; | |
| 2706 int java_lang_System::static_err_offset; | |
| 2707 int java_lang_StackTraceElement::declaringClass_offset; | |
| 2708 int java_lang_StackTraceElement::methodName_offset; | |
| 2709 int java_lang_StackTraceElement::fileName_offset; | |
| 2710 int java_lang_StackTraceElement::lineNumber_offset; | |
| 2711 int java_lang_AssertionStatusDirectives::classes_offset; | |
| 2712 int java_lang_AssertionStatusDirectives::classEnabled_offset; | |
| 2713 int java_lang_AssertionStatusDirectives::packages_offset; | |
| 2714 int java_lang_AssertionStatusDirectives::packageEnabled_offset; | |
| 2715 int java_lang_AssertionStatusDirectives::deflt_offset; | |
| 2716 int java_nio_Buffer::_limit_offset; | |
| 2717 int sun_misc_AtomicLongCSImpl::_value_offset; | |
| 2718 int java_util_concurrent_locks_AbstractOwnableSynchronizer::_owner_offset = 0; | |
| 2719 int sun_reflect_ConstantPool::_cp_oop_offset; | |
| 2720 int sun_reflect_UnsafeStaticFieldAccessorImpl::_base_offset; | |
| 2721 | |
| 2722 | |
| 2723 // Support for java_lang_StackTraceElement | |
| 2724 | |
| 2725 void java_lang_StackTraceElement::set_fileName(oop element, oop value) { | |
| 2726 element->obj_field_put(fileName_offset, value); | |
| 2727 } | |
| 2728 | |
| 2729 void java_lang_StackTraceElement::set_declaringClass(oop element, oop value) { | |
| 2730 element->obj_field_put(declaringClass_offset, value); | |
| 2731 } | |
| 2732 | |
| 2733 void java_lang_StackTraceElement::set_methodName(oop element, oop value) { | |
| 2734 element->obj_field_put(methodName_offset, value); | |
| 2735 } | |
| 2736 | |
| 2737 void java_lang_StackTraceElement::set_lineNumber(oop element, int value) { | |
| 2738 element->int_field_put(lineNumber_offset, value); | |
| 2739 } | |
| 2740 | |
| 2741 | |
| 2742 // Support for java Assertions - java_lang_AssertionStatusDirectives. | |
| 2743 | |
| 2744 void java_lang_AssertionStatusDirectives::set_classes(oop o, oop val) { | |
| 2745 o->obj_field_put(classes_offset, val); | |
| 2746 } | |
| 2747 | |
| 2748 void java_lang_AssertionStatusDirectives::set_classEnabled(oop o, oop val) { | |
| 2749 o->obj_field_put(classEnabled_offset, val); | |
| 2750 } | |
| 2751 | |
| 2752 void java_lang_AssertionStatusDirectives::set_packages(oop o, oop val) { | |
| 2753 o->obj_field_put(packages_offset, val); | |
| 2754 } | |
| 2755 | |
| 2756 void java_lang_AssertionStatusDirectives::set_packageEnabled(oop o, oop val) { | |
| 2757 o->obj_field_put(packageEnabled_offset, val); | |
| 2758 } | |
| 2759 | |
| 2760 void java_lang_AssertionStatusDirectives::set_deflt(oop o, bool val) { | |
| 2761 o->bool_field_put(deflt_offset, val); | |
| 2762 } | |
| 2763 | |
| 2764 | |
| 2765 // Support for intrinsification of java.nio.Buffer.checkIndex | |
| 2766 int java_nio_Buffer::limit_offset() { | |
| 2767 return _limit_offset; | |
| 2768 } | |
| 2769 | |
| 2770 | |
| 2771 void java_nio_Buffer::compute_offsets() { | |
| 2772 klassOop k = SystemDictionary::java_nio_Buffer_klass(); | |
|
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2773 assert(k != NULL, "must be loaded in 1.4+"); |
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|
2774 compute_offset(_limit_offset, k, vmSymbols::limit_name(), vmSymbols::int_signature()); |
| 0 | 2775 } |
| 2776 | |
| 2777 // Support for intrinsification of sun.misc.AtomicLongCSImpl.attemptUpdate | |
| 2778 int sun_misc_AtomicLongCSImpl::value_offset() { | |
| 2779 assert(SystemDictionary::sun_misc_AtomicLongCSImpl_klass() != NULL, "can't call this"); | |
| 2780 return _value_offset; | |
| 2781 } | |
| 2782 | |
| 2783 | |
| 2784 void sun_misc_AtomicLongCSImpl::compute_offsets() { | |
| 2785 klassOop k = SystemDictionary::sun_misc_AtomicLongCSImpl_klass(); | |
| 2786 // If this class is not present, its value field offset won't be referenced. | |
| 2787 if (k != NULL) { | |
|
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|
2788 compute_offset(_value_offset, k, vmSymbols::value_name(), vmSymbols::long_signature()); |
| 0 | 2789 } |
| 2790 } | |
| 2791 | |
| 2792 void java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(TRAPS) { | |
| 2793 if (_owner_offset != 0) return; | |
| 2794 | |
| 2795 assert(JDK_Version::is_gte_jdk16x_version(), "Must be JDK 1.6 or later"); | |
| 2796 SystemDictionary::load_abstract_ownable_synchronizer_klass(CHECK); | |
| 2797 klassOop k = SystemDictionary::abstract_ownable_synchronizer_klass(); | |
|
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2798 compute_offset(_owner_offset, k, |
| 0 | 2799 vmSymbols::exclusive_owner_thread_name(), vmSymbols::thread_signature()); |
| 2800 } | |
| 2801 | |
| 2802 oop java_util_concurrent_locks_AbstractOwnableSynchronizer::get_owner_threadObj(oop obj) { | |
| 2803 assert(_owner_offset != 0, "Must be initialized"); | |
| 2804 return obj->obj_field(_owner_offset); | |
| 2805 } | |
| 2806 | |
| 2807 // Compute hard-coded offsets | |
| 2808 // Invoked before SystemDictionary::initialize, so pre-loaded classes | |
| 2809 // are not available to determine the offset_of_static_fields. | |
| 2810 void JavaClasses::compute_hard_coded_offsets() { | |
|
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2811 const int x = heapOopSize; |
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2812 const int header = instanceOopDesc::base_offset_in_bytes(); |
| 0 | 2813 |
| 2814 // Do the String Class | |
| 2815 java_lang_String::value_offset = java_lang_String::hc_value_offset * x + header; | |
| 2816 java_lang_String::offset_offset = java_lang_String::hc_offset_offset * x + header; | |
| 2817 java_lang_String::count_offset = java_lang_String::offset_offset + sizeof (jint); | |
| 2818 java_lang_String::hash_offset = java_lang_String::count_offset + sizeof (jint); | |
| 2819 | |
| 2820 // Do the Class Class | |
| 2821 java_lang_Class::klass_offset = java_lang_Class::hc_klass_offset * x + header; | |
| 2822 java_lang_Class::array_klass_offset = java_lang_Class::hc_array_klass_offset * x + header; | |
| 2823 java_lang_Class::resolved_constructor_offset = java_lang_Class::hc_resolved_constructor_offset * x + header; | |
| 2824 | |
| 2825 // This is NOT an offset | |
| 2826 java_lang_Class::number_of_fake_oop_fields = java_lang_Class::hc_number_of_fake_oop_fields; | |
| 2827 | |
| 2828 // Throwable Class | |
| 2829 java_lang_Throwable::backtrace_offset = java_lang_Throwable::hc_backtrace_offset * x + header; | |
| 2830 java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header; | |
| 2831 java_lang_Throwable::cause_offset = java_lang_Throwable::hc_cause_offset * x + header; | |
| 2832 java_lang_Throwable::stackTrace_offset = java_lang_Throwable::hc_stackTrace_offset * x + header; | |
| 2833 | |
| 2834 // java_lang_boxing_object | |
|
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|
2835 java_lang_boxing_object::value_offset = java_lang_boxing_object::hc_value_offset + header; |
|
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|
2836 java_lang_boxing_object::long_value_offset = align_size_up((java_lang_boxing_object::hc_value_offset + header), BytesPerLong); |
| 0 | 2837 |
| 2838 // java_lang_ref_Reference: | |
| 2839 java_lang_ref_Reference::referent_offset = java_lang_ref_Reference::hc_referent_offset * x + header; | |
| 2840 java_lang_ref_Reference::queue_offset = java_lang_ref_Reference::hc_queue_offset * x + header; | |
| 2841 java_lang_ref_Reference::next_offset = java_lang_ref_Reference::hc_next_offset * x + header; | |
| 2842 java_lang_ref_Reference::discovered_offset = java_lang_ref_Reference::hc_discovered_offset * x + header; | |
| 2843 java_lang_ref_Reference::static_lock_offset = java_lang_ref_Reference::hc_static_lock_offset * x; | |
| 2844 java_lang_ref_Reference::static_pending_offset = java_lang_ref_Reference::hc_static_pending_offset * x; | |
| 2845 // Artificial fields for java_lang_ref_Reference | |
| 2846 // The first field is for the discovered field added in 1.4 | |
| 2847 java_lang_ref_Reference::number_of_fake_oop_fields = 1; | |
| 2848 | |
| 2849 // java_lang_ref_SoftReference Class | |
|
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|
2850 java_lang_ref_SoftReference::timestamp_offset = align_size_up((java_lang_ref_SoftReference::hc_timestamp_offset * x + header), BytesPerLong); |
| 0 | 2851 // Don't multiply static fields because they are always in wordSize units |
| 2852 java_lang_ref_SoftReference::static_clock_offset = java_lang_ref_SoftReference::hc_static_clock_offset * x; | |
| 2853 | |
| 2854 // java_lang_ClassLoader | |
| 2855 java_lang_ClassLoader::parent_offset = java_lang_ClassLoader::hc_parent_offset * x + header; | |
| 2856 | |
| 2857 // java_lang_System | |
| 2858 java_lang_System::static_in_offset = java_lang_System::hc_static_in_offset * x; | |
| 2859 java_lang_System::static_out_offset = java_lang_System::hc_static_out_offset * x; | |
| 2860 java_lang_System::static_err_offset = java_lang_System::hc_static_err_offset * x; | |
| 2861 | |
| 2862 // java_lang_StackTraceElement | |
| 2863 java_lang_StackTraceElement::declaringClass_offset = java_lang_StackTraceElement::hc_declaringClass_offset * x + header; | |
| 2864 java_lang_StackTraceElement::methodName_offset = java_lang_StackTraceElement::hc_methodName_offset * x + header; | |
| 2865 java_lang_StackTraceElement::fileName_offset = java_lang_StackTraceElement::hc_fileName_offset * x + header; | |
| 2866 java_lang_StackTraceElement::lineNumber_offset = java_lang_StackTraceElement::hc_lineNumber_offset * x + header; | |
| 2867 java_lang_AssertionStatusDirectives::classes_offset = java_lang_AssertionStatusDirectives::hc_classes_offset * x + header; | |
| 2868 java_lang_AssertionStatusDirectives::classEnabled_offset = java_lang_AssertionStatusDirectives::hc_classEnabled_offset * x + header; | |
| 2869 java_lang_AssertionStatusDirectives::packages_offset = java_lang_AssertionStatusDirectives::hc_packages_offset * x + header; | |
| 2870 java_lang_AssertionStatusDirectives::packageEnabled_offset = java_lang_AssertionStatusDirectives::hc_packageEnabled_offset * x + header; | |
| 2871 java_lang_AssertionStatusDirectives::deflt_offset = java_lang_AssertionStatusDirectives::hc_deflt_offset * x + header; | |
| 2872 | |
| 2873 } | |
| 2874 | |
| 2875 | |
| 2876 // Compute non-hard-coded field offsets of all the classes in this file | |
| 2877 void JavaClasses::compute_offsets() { | |
| 2878 | |
| 2879 java_lang_Class::compute_offsets(); | |
| 2880 java_lang_System::compute_offsets(); | |
| 2881 java_lang_Thread::compute_offsets(); | |
| 2882 java_lang_ThreadGroup::compute_offsets(); | |
| 710 | 2883 if (EnableMethodHandles) { |
|
2357
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2356
diff
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|
2884 java_lang_invoke_MethodHandle::compute_offsets(); |
|
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2356
diff
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|
2885 java_lang_invoke_MemberName::compute_offsets(); |
|
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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|
2886 java_lang_invoke_DirectMethodHandle::compute_offsets(); |
|
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|
2887 java_lang_invoke_BoundMethodHandle::compute_offsets(); |
|
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diff
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|
2888 java_lang_invoke_AdapterMethodHandle::compute_offsets(); |
|
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jrose
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2356
diff
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|
2889 java_lang_invoke_MethodType::compute_offsets(); |
|
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diff
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|
2890 java_lang_invoke_MethodTypeForm::compute_offsets(); |
| 710 | 2891 } |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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diff
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|
2892 if (EnableInvokeDynamic) { |
|
2357
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|
2893 java_lang_invoke_CallSite::compute_offsets(); |
|
726
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|
2894 } |
| 0 | 2895 java_security_AccessControlContext::compute_offsets(); |
| 2896 // Initialize reflection classes. The layouts of these classes | |
| 2897 // changed with the new reflection implementation in JDK 1.4, and | |
| 2898 // since the Universe doesn't know what JDK version it is until this | |
| 2899 // point we defer computation of these offsets until now. | |
| 2900 java_lang_reflect_AccessibleObject::compute_offsets(); | |
| 2901 java_lang_reflect_Method::compute_offsets(); | |
| 2902 java_lang_reflect_Constructor::compute_offsets(); | |
| 2903 java_lang_reflect_Field::compute_offsets(); | |
| 2904 if (JDK_Version::is_gte_jdk14x_version()) { | |
| 2905 java_nio_Buffer::compute_offsets(); | |
| 2906 } | |
| 2907 if (JDK_Version::is_gte_jdk15x_version()) { | |
| 2908 sun_reflect_ConstantPool::compute_offsets(); | |
| 2909 sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets(); | |
| 2910 } | |
| 2911 sun_misc_AtomicLongCSImpl::compute_offsets(); | |
| 710 | 2912 |
| 2913 // generated interpreter code wants to know about the offsets we just computed: | |
| 2914 AbstractAssembler::update_delayed_values(); | |
| 0 | 2915 } |
| 2916 | |
| 2917 #ifndef PRODUCT | |
| 2918 | |
| 2919 // These functions exist to assert the validity of hard-coded field offsets to guard | |
| 2920 // against changes in the class files | |
| 2921 | |
| 2922 bool JavaClasses::check_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
| 2923 EXCEPTION_MARK; | |
| 2924 fieldDescriptor fd; | |
|
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diff
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|
2925 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
| 0 | 2926 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
| 2927 instanceKlassHandle h_klass (THREAD, k); | |
|
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|
2928 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
|
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6990754: Use native memory and reference counting to implement SymbolTable
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diff
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|
2929 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
|
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diff
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|
2930 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
| 0 | 2931 tty->print_cr("Nonstatic field %s.%s not found", klass_name, field_name); |
| 2932 return false; | |
| 2933 } | |
| 2934 if (fd.is_static()) { | |
| 2935 tty->print_cr("Nonstatic field %s.%s appears to be static", klass_name, field_name); | |
| 2936 return false; | |
| 2937 } | |
| 2938 if (fd.offset() == hardcoded_offset ) { | |
| 2939 return true; | |
| 2940 } else { | |
| 2941 tty->print_cr("Offset of nonstatic field %s.%s is hardcoded as %d but should really be %d.", | |
| 2942 klass_name, field_name, hardcoded_offset, fd.offset()); | |
| 2943 return false; | |
| 2944 } | |
| 2945 } | |
| 2946 | |
| 2947 | |
| 2948 bool JavaClasses::check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
| 2949 EXCEPTION_MARK; | |
| 2950 fieldDescriptor fd; | |
|
2177
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diff
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|
2951 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
| 0 | 2952 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
| 2953 instanceKlassHandle h_klass (THREAD, k); | |
|
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|
2954 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
|
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diff
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|
2955 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
|
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diff
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|
2956 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
| 0 | 2957 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
| 2958 return false; | |
| 2959 } | |
| 2960 if (!fd.is_static()) { | |
| 2961 tty->print_cr("Static field %s.%s appears to be nonstatic", klass_name, field_name); | |
| 2962 return false; | |
| 2963 } | |
| 2964 if (fd.offset() == hardcoded_offset + h_klass->offset_of_static_fields()) { | |
| 2965 return true; | |
| 2966 } else { | |
| 2967 tty->print_cr("Offset of static field %s.%s is hardcoded as %d but should really be %d.", klass_name, field_name, hardcoded_offset, fd.offset() - h_klass->offset_of_static_fields()); | |
| 2968 return false; | |
| 2969 } | |
| 2970 } | |
| 2971 | |
| 2972 | |
|
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|
2973 bool JavaClasses::check_constant(const char *klass_name, int hardcoded_constant, const char *field_name, const char* field_sig) { |
|
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|
2974 EXCEPTION_MARK; |
|
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|
2975 fieldDescriptor fd; |
|
2177
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|
2976 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
|
132
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|
2977 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
|
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|
2978 instanceKlassHandle h_klass (THREAD, k); |
|
2177
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diff
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|
2979 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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1989
diff
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|
2980 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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|
2981 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
|
132
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|
2982 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
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|
2983 return false; |
|
60b728ec77c1
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jrose
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|
2984 } |
|
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|
2985 if (!fd.is_static() || !fd.has_initial_value()) { |
|
60b728ec77c1
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|
2986 tty->print_cr("Static field %s.%s appears to be non-constant", klass_name, field_name); |
|
60b728ec77c1
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jrose
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|
2987 return false; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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diff
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|
2988 } |
|
60b728ec77c1
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jrose
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diff
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|
2989 if (!fd.initial_value_tag().is_int()) { |
|
60b728ec77c1
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|
2990 tty->print_cr("Static field %s.%s is not an int", klass_name, field_name); |
|
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jrose
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|
2991 return false; |
|
60b728ec77c1
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jrose
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|
2992 } |
|
60b728ec77c1
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jrose
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|
2993 jint field_value = fd.int_initial_value(); |
|
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|
2994 if (field_value == hardcoded_constant) { |
|
60b728ec77c1
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jrose
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113
diff
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|
2995 return true; |
|
60b728ec77c1
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jrose
parents:
113
diff
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|
2996 } else { |
|
60b728ec77c1
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jrose
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|
2997 tty->print_cr("Constant value of static field %s.%s is hardcoded as %d but should really be %d.", klass_name, field_name, hardcoded_constant, field_value); |
|
60b728ec77c1
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jrose
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|
2998 return false; |
|
60b728ec77c1
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jrose
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diff
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|
2999 } |
|
60b728ec77c1
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jrose
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|
3000 } |
|
60b728ec77c1
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jrose
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|
3001 |
|
60b728ec77c1
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|
3002 |
| 0 | 3003 // Check the hard-coded field offsets of all the classes in this file |
| 3004 | |
| 3005 void JavaClasses::check_offsets() { | |
| 3006 bool valid = true; | |
| 3007 | |
| 3008 #define CHECK_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ | |
| 3009 valid &= check_offset(klass_name, cpp_klass_name :: field_name ## _offset, #field_name, field_sig) | |
| 3010 | |
|
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|
3011 #define CHECK_LONG_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
|
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|
3012 valid &= check_offset(klass_name, cpp_klass_name :: long_ ## field_name ## _offset, #field_name, field_sig) |
|
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|
3013 |
| 0 | 3014 #define CHECK_STATIC_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
| 3015 valid &= check_static_offset(klass_name, cpp_klass_name :: static_ ## field_name ## _offset, #field_name, field_sig) | |
| 3016 | |
|
132
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|
3017 #define CHECK_CONSTANT(klass_name, cpp_klass_name, field_name, field_sig) \ |
|
60b728ec77c1
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|
3018 valid &= check_constant(klass_name, cpp_klass_name :: field_name, #field_name, field_sig) |
|
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|
3019 |
| 0 | 3020 // java.lang.String |
| 3021 | |
| 3022 CHECK_OFFSET("java/lang/String", java_lang_String, value, "[C"); | |
| 3023 CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I"); | |
| 3024 CHECK_OFFSET("java/lang/String", java_lang_String, count, "I"); | |
| 3025 CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I"); | |
| 3026 | |
| 3027 // java.lang.Class | |
| 3028 | |
| 3029 // Fake fields | |
| 3030 // CHECK_OFFSET("java/lang/Class", java_lang_Class, klass); // %%% this needs to be checked | |
| 3031 // CHECK_OFFSET("java/lang/Class", java_lang_Class, array_klass); // %%% this needs to be checked | |
| 3032 // CHECK_OFFSET("java/lang/Class", java_lang_Class, resolved_constructor); // %%% this needs to be checked | |
| 3033 | |
| 3034 // java.lang.Throwable | |
| 3035 | |
| 3036 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, backtrace, "Ljava/lang/Object;"); | |
| 3037 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, detailMessage, "Ljava/lang/String;"); | |
| 3038 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, cause, "Ljava/lang/Throwable;"); | |
| 3039 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, stackTrace, "[Ljava/lang/StackTraceElement;"); | |
| 3040 | |
| 3041 // Boxed primitive objects (java_lang_boxing_object) | |
| 3042 | |
| 3043 CHECK_OFFSET("java/lang/Boolean", java_lang_boxing_object, value, "Z"); | |
| 3044 CHECK_OFFSET("java/lang/Character", java_lang_boxing_object, value, "C"); | |
| 3045 CHECK_OFFSET("java/lang/Float", java_lang_boxing_object, value, "F"); | |
|
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|
3046 CHECK_LONG_OFFSET("java/lang/Double", java_lang_boxing_object, value, "D"); |
| 0 | 3047 CHECK_OFFSET("java/lang/Byte", java_lang_boxing_object, value, "B"); |
| 3048 CHECK_OFFSET("java/lang/Short", java_lang_boxing_object, value, "S"); | |
| 3049 CHECK_OFFSET("java/lang/Integer", java_lang_boxing_object, value, "I"); | |
|
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|
3050 CHECK_LONG_OFFSET("java/lang/Long", java_lang_boxing_object, value, "J"); |
| 0 | 3051 |
| 3052 // java.lang.ClassLoader | |
| 3053 | |
| 3054 CHECK_OFFSET("java/lang/ClassLoader", java_lang_ClassLoader, parent, "Ljava/lang/ClassLoader;"); | |
| 3055 | |
| 3056 // java.lang.System | |
| 3057 | |
| 3058 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, in, "Ljava/io/InputStream;"); | |
| 3059 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, out, "Ljava/io/PrintStream;"); | |
| 3060 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, err, "Ljava/io/PrintStream;"); | |
| 3061 | |
| 3062 // java.lang.StackTraceElement | |
| 3063 | |
| 3064 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClass, "Ljava/lang/String;"); | |
| 3065 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, methodName, "Ljava/lang/String;"); | |
| 3066 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, fileName, "Ljava/lang/String;"); | |
| 3067 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, lineNumber, "I"); | |
| 3068 | |
| 3069 // java.lang.ref.Reference | |
| 3070 | |
| 3071 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, referent, "Ljava/lang/Object;"); | |
| 3072 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, queue, "Ljava/lang/ref/ReferenceQueue;"); | |
| 3073 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, next, "Ljava/lang/ref/Reference;"); | |
| 3074 // Fake field | |
| 3075 //CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, discovered, "Ljava/lang/ref/Reference;"); | |
| 3076 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, lock, "Ljava/lang/ref/Reference$Lock;"); | |
| 3077 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, pending, "Ljava/lang/ref/Reference;"); | |
| 3078 | |
| 3079 // java.lang.ref.SoftReference | |
| 3080 | |
| 3081 CHECK_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, timestamp, "J"); | |
| 3082 CHECK_STATIC_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, clock, "J"); | |
| 3083 | |
| 3084 // java.lang.AssertionStatusDirectives | |
| 3085 // | |
| 3086 // The CheckAssertionStatusDirectives boolean can be removed from here and | |
| 3087 // globals.hpp after the AssertionStatusDirectives class has been integrated | |
| 3088 // into merlin "for some time." Without it, the vm will fail with early | |
| 3089 // merlin builds. | |
| 3090 | |
| 3091 if (CheckAssertionStatusDirectives && JDK_Version::is_gte_jdk14x_version()) { | |
| 3092 const char* nm = "java/lang/AssertionStatusDirectives"; | |
| 3093 const char* sig = "[Ljava/lang/String;"; | |
| 3094 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classes, sig); | |
| 3095 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classEnabled, "[Z"); | |
| 3096 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packages, sig); | |
| 3097 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packageEnabled, "[Z"); | |
| 3098 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, deflt, "Z"); | |
| 3099 } | |
| 3100 | |
| 3101 if (!valid) vm_exit_during_initialization("Hard-coded field offset verification failed"); | |
| 3102 } | |
| 3103 | |
| 3104 #endif // PRODUCT | |
| 3105 | |
| 3106 void javaClasses_init() { | |
| 3107 JavaClasses::compute_offsets(); | |
| 3108 JavaClasses::check_offsets(); | |
| 3109 FilteredFieldsMap::initialize(); // must be done after computing offsets. | |
| 3110 } |